WO2000059289A1

WO2000059289A1 - Seedling rest for rice-planting machines

Info

Publication number: WO2000059289A1
Application number: PCT/JP1999/006308
Authority: WO
Inventors: Yuichi Katou; Hideki Matsuoka; Youichiro Nishi; Kunio Doi; Tomofumi Maekawa
Original assignee: Yanmar Agricultural Equipment Co., Ltd.
Priority date: 1999-04-02
Filing date: 1999-11-11
Publication date: 2000-10-12
Also published as: CN1253067C; TW462865B; KR20010071369A; KR100651670B1; CN1303231A

Abstract

A seedling rest (16) for a multi-row, for example, 8-row, rice-planting machine, comprising a 1- or multi-row divisional seedling rest (16D) disposed on one of left and right sides that is removably attachable to a main seedling rest (16M) fixed to the rice-planting machine, a three-point support structure for support at 1 point in the upper region and 2 points at lower right and left, respectively associated with the seedling support face of the main seedling rest (16M) and the back of the divisional seedling rest (16D), the divisional seedling rest (16D) being fixedly placeable above the main seedling rest (16M). The divisional seedling rest (16D) is provided on opposite sides with handles (40L, 40R), one handle being located higher than the other. The lower right and left 2-point support structure supports the load in such a way that fitting pins (41L, 41R) disposed on the divisional seedling rest (16D) are respectively fitted into support pipes (43L, 43R) disposed on the main seedling rest (16M).

Description

Technical Note Rice transplanter seedling platform Technical field

The present invention relates to a configuration of a seedling mounting table of a riding rice transplanter, and relates to a technique which aims to improve mobility and storage by reducing the left and right width of the seedling mounting table when moving and storing the rice transplanter. Things. Specifically, the left and right sides of the seedling platform are divided into two parts, and the divided seedling platforms are configured to be detachable. After the work is completed, the divided seedling platforms are removed and placed on the fixed side of the seedling platform. The present invention relates to a configuration of a seedling mounting table that can be placed and engaged with the seedling mounting table. Background art

Conventionally, in a multi-row rice transplanter having eight or more rows, a technique has been known in which a seedling mounting table and a guide rail can be folded. For example, the technique disclosed in Japanese Patent Application Laid-Open No. 10-127121 is disclosed. The reason for adopting such a configuration is that in the case of a multi-row type rice transplanter, the lateral width of the seedling mounting table becomes wider, so when transporting or moving, store the rice transplanter in a warehouse or the like. In that case, there was a problem that the seedling platform that protruded to the left and right from the aircraft was in the way.

This conventional seedling platform is configured such that the two rows of seedling platforms on the left and right sides are divided into the four rows of seedling platforms in the center. The row of seedlings was laid so that it could be placed on the center, while slightly sliding backwards toward the center. Also, the left and right guide rails and bamba were configured to fold upward or forward.

However, the conventional mechanism for folding the seedling table is configured to slide (translate in parallel) by a link mechanism, which makes the mechanism complicated and expensive. In addition, since both the left and right seedling platforms were folded toward the central seedling platform and each was locked, the number of operation procedures was increased and the operation was cumbersome. Furthermore, simply folding it up would cause the folded seedling table to vibrate or rock, requiring it to be locked and fixed, which was cumbersome and cumbersome. Disclosure of the invention

The present invention relates to a rice transplanter capable of reducing the length of the seedling mounting table in the left-right width direction, wherein one or more seedling mounting tables on one side on the right and left sides are detachable to form a divided seedling mounting table. Since the seedling mounting table can be placed and fixed above the remaining main seedling mounting table, it is easy to move, transport, or store the rice transplanter.

By setting the number of strips of the detachable split seedling platform particularly to two strips, it is possible to set the number of strips of the detached seedling racks above the main seedling platform and to set the number of strips more than one strip. The lateral width of the seedling table can be reduced. On the other hand, if the number of rows is too large, the weight of the divided seedling platform will be large, but if the divided row of seedlings for two rows does not require a great deal of force to lift it, the storage operation can be performed without difficulty.

And since the holding parts are provided on both the left and right sides of the divided seedling mounting table, and one of the left and right holding parts is arranged at a higher position than the other, the structure is easy to remove and easy to apply force. By arranging the left and right grips so as to sandwich the center of gravity of the divided seedling mounting table, it is easy to balance when lifting the divided seedling mounting table, and the work is facilitated.

Also, at least two supported parts are provided on the rear side of the divided seedling platform in the left and right direction, and the load in the gravity direction of the divided seedling platform applied to this supported part is placed on the seedling mounting side of the main seedling platform. The divided seedling mounting table shall be supported on the main seedling mounting table without swinging up and down, and a position higher than these supported parts on the back side of the divided seedling mounting table shall be provided. An upper supporting portion is provided on the seedling mounting surface side of the main seedling mounting table, and an upper supporting portion for supporting the upper supporting portion at a position higher than the supporting portion is provided. And swings that rotate back and forth. Since the lower support structure receives the load of the divided seedling platform in the direction of gravity, the upper support structure has a simple and compact structure that regulates the rotation of the divided seedling platform as described above. Is fine.

Typically, a structure is provided on the back side of the divided seedling platform where two lower and left supported parts and one upper upper supported part are provided, and three points are supported on the seedling mounting surface of the main seedling platform. Conceivable.

Taking this three-point support structure as an example, as a specific example of the two lower support structures, the supported portion of the divided seedling mounting table is a pin projecting substantially downward from the back surface, and The base may be provided with a cylindrical member (supporting pipe) for inserting the pin in the axial direction (projecting substantially upward) as a member for fitting the pin, Insert the pin in its radial direction It is conceivable to provide a recessed member for entering.

In particular, when the support portion of the main seedling mounting table is formed of a cylindrical member, the insertion lengths of the two right and left pins of the divided seedling mounting table into the respective cylindrical members are made different from each other so that the two left and right pins are different. The pin can be easily supported by two cylindrical members on the left and right of the main seedling mounting table. That is, of the two pins on the left and right sides, first, the pin with the longer insertion length is inserted into the cylindrical member first, and this pin and the support member then move to the pin with the shorter insertion length. Since this serves as a guide when positioning and inserting the divided seedling mounting onto the cylindrical member, the divided seedling mounting base can be easily mounted and fixed on the main seedling mounting base.

The above and other objects, features, and advantages of the present invention will become apparent from the following detailed description with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE FIGURES

Fig. 1 is an overall side view of a rice transplanter equipped with a seedling platform that can reduce the length in the left-right direction, and Fig. 2 shows a state where the divided seedling platform is placed on the main seedling platform and stored. FIG. 3 is a rear view of the seedling mounting table of the present invention, FIG. 4 is a rear view of the divided seedling mounting table, and FIG. 5 is a side view of the seedling mounting table. Fig. 6 is a front (rear) view of the divided seedling mounting table, Fig. 7 is a side view of the fitting pin mounting portion, and Fig. 8 is a side view of the left support pipe. FIG. 9 is a side view of the right support pipe, FIG. 10 is a side view of the engagement pin attachment portion, FIG. 11 is a front view of the engagement pin attachment portion, and FIG. The figure is a rear view of the embodiment in which the lengths of the right and left fitting pins are different. FIG. 13 shows one after the embodiment in which the pin and the support pipe are fitted to each other and the other in which the pin is fitted to the concave portion. It is a sectional view, The figure is a cross-sectional view taken in the direction of arrows 14 to 14 in FIG. 13.FIG. 15 is a rear view of an embodiment in which a rail is provided on the main seedling mounting table and a roller is provided on the divided seedling mounting table. Fig. 16 is a side view of the rail and rollers, Fig. 17 is a front view of the seedling stand in a separated state, and Fig. 18 is a view of a flasher lamp provided on the divided seedling stand. It is a front view which shows the other Example which connects the code | cord of a seedling connection sensor. BEST MODE FOR CARRYING OUT THE INVENTION

First, the overall configuration of an eight-row riding rice transplanter A will be described with reference to FIG. Squared The rice transplanter A is composed of a front running section 1 and a planting section 4 connected to a rear section of the running section 1 via a lifting link mechanism 27. The traveling section 1 is supported by a vehicle body frame 3, and an engine 2 is mounted above a front portion of the vehicle body frame 3, and a front wheel 6 is supported at a lower front portion via a front desk case. A rear wheel 8 is supported at a lower rear portion via a rear axle case 7.

The engine 2 is covered by a bonnet 9 and spare seedling stands 10 and 10 are provided on both sides of the bonnet 9, and a steering handle 14 is mounted on a dashboard 5 behind the bonnet 9. Have been placed.

Both sides of the bonnet 9 and the rear of the body frame 3 are covered with body covers 1 and 2. The front half of the body cover 1 and 2 forms a substantially horizontal platform with the same height from the left and right sides of the bonnet 5 to the rear part of the dashboard, and the rear half is one step higher. Seats 1 and 2 are provided.

On the side of the seat 13, there are a running speed lever 30, a sub speed lever 31 for planting elevating and working speed change, a planting sensitivity adjusting lever 31, etc. The main clutch pedal 32 and the left and right brake pedals are protrudingly provided on the upper surface of the body cover 12 behind the upper part of the vehicle. An eight-row fertilizer 33 is mounted on the body cover 1 12 behind the seat 13.

The planting section 4 includes a seedling table 16, planting claws 17, a center float 34, a side float 35 and the like. The seedling mounting table 16 is arranged so as to be inclined forward, so that the seedling mounting surface (that is, the rear side of the aircraft) faces upward. The lower part of the seedling table 16 is supported by the lower guide rail 18, and the upper part of the back surface (that is, the rear side of the seedling mounting surface and the front side of the fuselage) is supported by the upper guide rail 19, so that the seedling table 16 is supported. Reference numeral 16 denotes a reciprocally slidable left and right, and the lower guide rail 18 and the upper guide rail 19 are supported by a planting center case 20 via a frame or the like.

A plurality of chain cases 21 project rearward from the planting center case 20 in parallel with each other via a connecting pipe extending in the left-right direction. A rotary case 22 for rotating in one direction is arranged at the rear of each chain case 21 and a pair of planting claws 17 are arranged at both ends of each rotary case 22. .

By linking the movements of each component of the planting section 4 as described above, As the machine moves forward, the seedling mounting table 16 reciprocally slides to the left and right. In synchronization with this reciprocation, the planting pawls 17 are driven to cut out the seedlings for one plant, and continuous planting work is performed. It is something to do.

A front portion of the planting center case 20 is connected to the lifting link mechanism 27 via a rolling fulcrum shaft. The lifting link mechanism 27 is composed of a top link 25, a lower link 26, etc., and allows the planting section 4 to be moved up and down by the expansion and contraction of a lifting cylinder 28 arranged below the seat 13. ing.

Next, the configuration of the seedling mounting table 16 according to the present invention will be described. In this embodiment, the seedling mounting table

As shown in Fig. 3, 16 is a two-row split seedling platform 16D on the right (the right side in the forward direction, the same applies hereinafter), and the left side (the left side in the forward direction, the same applies hereinafter). It consists of a fixed 16-metre main seedling platform for six lines at the center of the fuselage. In addition, it is conceivable to attach a divided seedling platform 16 D to the left side of the main seedling platform 16 M. It is also conceivable to adopt a configuration to attach it.

As shown in Fig. 2, the split seedling platform 16D is detachable from the main seedling platform 16M, and can be removed and placed on the seedling platform of the main seedling platform 16M. It is configured so that it can be stored by being engaged. In addition, by removing the divided seedling mounting platform 16D, the lower guide rail 18 that protrudes from the right side of the main seedling mounting platform 16M can be rotated forward and accommodated. The side bumper slides inward so that it can be stored.

As shown in Fig. 3, a plurality of ribs 16a are provided on the seedling mounting surface of the seedling mounting table 16 in the vertical direction so as to guide the seedling mat placed on each line from the left and right. Is formed. That is, one rib 16a is arranged on each of the left and right sides of each strip, and the seedling matsu is transported downward on the inclined seedling mounting surface while being guided by the right and left ribs 16a. There are a total of seven ribs 16 Ά from the left end to the right end of the main seedling platform 16 M, and a total of three ribs 16 a on the divided seedling platform 16 D. .

As shown in Fig. 3, on the seedling mounting surface of the main seedling mounting stand 16M, two seedling pine holders 46M integrally formed over three lines are arranged on the left and right. On the seedling mounting surface of the divided seedling mounting table 16D, there is a seedling mat retainer 46D that is integrally formed over the two rows. It is arranged. In addition, both the main seedling mounting table 16 M and the divided seedling mounting table 16 D are provided with seedling stoppers 47 for each section of the seedling mounting surface. (In Fig. 3, the seedling stopper 47 is not drawn on each row of the main seedling platform 16M, but it is actually installed.)

Conventionally, the number of seedling mat holders of an eight-row rice transplanter is one for each of the two seedling platforms that are folded on both sides, and two for each of the fixed four seedling platforms and one for the left and right. Each one had a total of five seedling holders. In other words, when removing the remaining seedlings on the seedling table after the work, the five seedling matsu holders had to be removed. On the other hand, in the present embodiment, as described above, two seedling matsu holders 46 M on the main seedling stage 16 M and one seedling matsu holder on the divided seedling stage 16 D were used. A total of three seedling mat holders 46 of 46 D are provided, and the number is smaller than before, making it easier to take out the remaining seedlings on the seedling table. In addition, it has made it possible to reduce costs by reducing the number of parts and the number of assembly steps.

Based on Fig. 3 to Fig. 5, the seedling pine holder 46 (hereinafter referred to as each seedling pine holder 46 Μ · 46D is referred to as a seedling pine holder 46) unless otherwise specified. explain. Each seedling mat holder 46 is composed of a plurality of vertical holder rods 46a, one horizontal support rod 46b, and one support shaft 46c.

The support shaft 46c is arranged in the left-right direction, that is, at right angles to the rib 16a in rear view, as shown in FIGS. Each of them is pivotally supported by a stopper stay 50 fixed on the rib 16a. In detail, the left seedling holder on the main seedling mounting table 16 M 46 The support shaft 46 m of 46 M is located on the left end of the first left rib 16 a from the left. 6 M leftmost rib 16 a) Upper stove top 50, right end is third right rib 16 a (main seedling platform 16 M fourth rib 16 from the left) a) It is pivotally supported by the upper stopper stay 50, and the left end of the right seedling mat retainer 46 6M supporting shaft 46c is the same stopper as above on the third right rib 16a. The stay 50 is pivotally supported at its right end by a stop 50 on the right rib 16a of the sixth row (the rightmost rib 16a of the main seedling platform 16M). The left and right ends of the seedling mat holder 46D are pivotally supported by respective stopper stays 50 fixed on the ribs 16a at the left and right ends of the divided seedling mounting table 16D. In this embodiment, three stoppers 50 are stored on the main seedling mounting table 16M. On the divided seedling mounting table 16D, two stopper stays 50 are provided, that is, a total of five stopper stays 50 are provided. Conventionally, since three seedling holders are installed on a fixed seedling stand, four stopper stays with the same function are installed, and the left and right foldable split seedling stands are installed. Since each of them had two storage stations, a total of eight storage stations were required. Compared with such a conventional seedling mounting table, the seedling mounting table of the present embodiment can reduce the number of stoppers and reduce costs.

As shown in FIG. 3, two vertical holding rods 46a are provided for each strip, that is, for each pair of adjacent ribs 16 and 16. Each of the vertical holding rods 46a extends in parallel with each of the ribs 16 in rear view as shown in FIGS. 3 and 4, and is omitted in side view as shown in FIG. It is bent in an inverted V-shape, one end of which extends to near the lower end of the seedling mounting surface, and is inserted and fixed in an extension pipe 46 e fixed to the support shaft 46 c. The end is fixed to the lateral support bar 46b.

As shown in FIGS. 3 and 4, the lateral support bar 46 b is formed in a substantially U-shape as viewed from the rear. Also, as shown in FIGS. 3 to 5, a height adjusting step 51 is fixedly provided at an upper position of each rib 16a to which the stopper step 50 is fixed. The left and right ends of each horizontal support bar 46 b can be engaged with each height adjustment step 51.

Also, as shown in Fig. 3 and Fig. 4, either the left or right of the vertical holding rods 46a of each strip Leftward from the base of the rod 46a and rightward from the base of the right vertical holding rod 46b) The pivot pins 46d protrude, and the seedling stoppers 4 provided for each row are provided. The base of 7 is pivotally supported on the pivot pin 46d of a pair of left and right vertical holding rods 46a of the strip. The rear surface of the seedling stopper 47 can be engaged with the support shaft 46c. Therefore, the seedling stopper 47 is self-rotating back and forth around a pair of left and right pivot pins 46 d provided on each line, and the seedling matsu is placed at the lower end of the seedling mounting surface in each line. When feeding the seedlings, rotate them backward to engage with the support shafts 46c.When catching the seedling mat, remove them from the support shafts 46c and rotate forward to bring the tip into contact with the seedling mounting surface. Like that. Next, the storage structure of the divided seedling mounting table 16D will be described. As shown in Figure 4, At the right end of the divided seedling platform 16D, that is, at the upper and lower part of the rib 16a at the end opposite the main seedling platform 16M, a handle 40R is projected so as to protrude outward. On the other hand, on the left end of the divided seedling mounting table 16D, that is, on the rib 1'6a at the side end attached to the main seedling mounting table 16M, compared to the handle 40R in rear view. At the lower position, the handle 40L is disposed so as to protrude rearward.

As shown in Fig. 4, the handle 40 L • 40 R provided as a grip for attaching and detaching and storing the divided seedling mounting table 16 D sandwiches the center of gravity G of the divided seedling mounting table 16 D. , And are arranged at positions such that a straight line X connecting the mounting portions to the ribs 16a passes near the center of gravity G.

As shown in Fig. 6, the mating pins 4 1 L · 4 1 are provided on the back of the divided seedling mounting table 16 D so that two left and right supported parts are formed in the middle part of the left and right sides. R protrudes substantially downward, and support pipes 43 L · 43 R as two left and right support parts provided on the main seedling mounting table 16 M described later, with fitting pins 41 L Move the 41 R in the axial direction and insert it so that the divided seedling stage 16 D placed on the main seedling stage 16 M can be fixed at two points below the left and right. ing. The lower left and right two points support structure is divided into two parts by the lower left and right support points provided on the main seedling mounting table 16M. The platform receives a load of 16 D in the direction of gravity.

Further, on the rear surface of the divided seedling mounting table 16D, at a position higher than the fitting pins 41L and 41R, and at the substantially right and left center positions of the upper guide rail 19, an engagement forming a supported portion is formed. A tab 42 having a hole 42a is protrudingly provided, and an engaging pin 44 serving as a support provided on the main seedling mounting table 16M is fitted into the engaging hole 42a of the tab 42. By doing so, the divided seedling platform 16 D placed on the main seedling platform 16 M can be fixed at one upper point. The supporting structure of the upper one point is such that the upper supporting point provided on the main seedling mounting table 16 M supports the one supported part of the split seedling mounting table 16 D, It is intended to regulate the swing of the platform 16D.

In this way, the three supported portions, one at the top and two at the bottom left and right, formed on the rear surface of the divided seedling mounting table 16D, were formed on the seedling mounting surface side of the main seedling mounting table 16M. The divided seedling mounting table 16D is securely mounted and fixed on the main seedling mounting table 16M by engaging the three support points, one point and the lower left and right two points, respectively. In the present embodiment, the support structure using the lower fitting pin 4 1 and the support pipe 4 3 is provided at two points on the left and right sides. (4) In the case of 4 widths, etc., three or more points may be provided in the left-right direction corresponding to the above. In addition, in the present embodiment, one support structure using the upper engagement pins 44 and the tabs 42 is provided at the left and right central portions, but two or more support structures may be provided in the left and right direction.

Makes it easier to fit the left and right mating pins 4 1 L · 4 1 R into the support pipes 4 3 L · 4 3 R when placing and fixing the divided seedling platform 16 D on the main seedling platform 16 M Therefore, the lengths of the right and left mating pins 41 L and 41 R are different. In the embodiment shown in FIG. 6, the right mating pin 41R is configured to be longer than the left mating pin 41L, so that the lower end position of the mating pin 41R is It is lower than the lower end of 1 L.

The mounting structure of the mating pins 4 1L · 41 R on the split seedling platform 16D back surface will be described using the mating pin 41 L as an example. As shown in FIGS. 6 and 7, a reinforcing plate 36 is fixed on the rear surface of the rib 16a, and a mounting plate 37 is fixed on the reinforcing plate 36. The upper end of the fitting pin 41 L is fixed to the gate 37. The upper and lower portions of the reinforcing plate 36 are bent in a convex shape toward the fitting pin 41 L as shown in FIG. 7 to form a leg, and the fitting pin 41 L and the rib 16 are formed. aA space is provided between the back side.

A flange portion 41a is provided in the middle of the shaft center of each of the fitting pins 41L and 41R. The flange portion 41a is used as a support pipe 43 (hereinafter referred to as a support pipe 43 indicating each of the support pipes 43L, 43R unless otherwise specified). It defines the insertion depth, and is defined as a fitting pin 41 (hereinafter, unless otherwise specified, the fitting pins 41 L and 41 R are referred to as fitting pins 41). ) Is brought into contact with the upper end of the support pipe 43 when it is inserted into the support pipe 43 to a specified depth. In addition, a pin hole 41b for opening a fixing pin is formed on a side surface of the fitting pin 41.

As shown in FIGS. 8 and 9, the support pipe 43 provided on the main seedling mounting table 16M is formed by bending a steel pipe or the like, and the base is formed on the surface of the rib 16a. It is fixed to the fixed mounting plate 52 and is disposed so as to protrude rearward and upward. The left and right ends of each mounting plate 52 are bent at right angles, and the surface of the rib 16a and the left and right It comes into contact with the side. A pair of fixed shafts 52a project from the front of the mounting plate 52, and when mounted on the rib 16a, a mounting hole (not shown) formed in the rib 16a is provided. After inserting the fixed shaft 52a into the fixed seedling mounting table 16, screw the bolts from the back of the main seedling mounting table 16M to each fixed shaft 52a, and thus attach the mounting plate 52 to the main seedling mounting table 1 It is to be fixed to the 6M rib 16a.

As shown in FIG. 3, the left support pipe 43L is fixed on the fourth rib 16a from the left end of the main seedling mounting table 16M, and the right support pipe 43R is It is fixed on the second rib 16a from the right end of the platform 16M. The upper end of the left support pipe 43L is higher than the upper end of the right support pipe 43R. The height difference between the upper ends of both support pipes 43L43R is smaller than the height difference between the lower ends of left and right fitting pipes 41L41R of different lengths as described above. As described later, when placing and fixing the divided seedling mounting platform 16D on the main seedling mounting platform 16M, the mating pins 4 1 L Of the R, the fitting pin 41 R is first inserted into the support pipe 43 R, and the fitting pin 41 R and the support pipe 43 in this state are connected to the other end. The guide pin is used as a guide when inserting the fitting pin 41 L into the support pipe 43 L.

The structure of the support pipe 43 will be described in more detail. As shown in FIGS. 8 and 9, reinforcing plates 43a extend from the rear surface of the mounting plate 52 along the lower surface of the hypotenuse of the support pipe 43, respectively. Are arranged so that the cross section of the reinforcing plate 43a faces in the radial direction of the cross section of the support pipe 43, and is fixed to the support pipe 43L · 43 by welding or the like, and the support pipe 43 Improved rigidity. At the midway between the opposite surfaces of the left and right support pipes 4 3 L and 4 3 R, mounting stays 4 3 b As shown in FIGS. 3 and 12, a connecting rod 49 is interposed between 4 3b in the left-right direction to increase the strength of the support pipe 4 3L • 4 3R in the left-right direction. I have. (FIG. 12 is an embodiment relating to a support pipe 43 different from that shown in FIGS. 3, 8 and 9; however, a left and right support pipe 4 3 L · 4 3 The connection structure of R is the same.) In addition, the support pipe 43 L on the left side is the fourth rib 16 a from the left end of the main seedling platform 16 M together with the stove 50. Fixed on the top to reduce the number of installation steps You.

The distal end of the support pipe 43 is bent so as to insert the mating pin 41, and the mounting plate 52, that is, the human part 4 substantially parallel to the seedling mounting surface of the main seedling mounting table 16M. 3C form. The upper end of the insertion portion 43c has a funnel shape so that the fitting pin 41 can be easily inserted. The left and right mounting plates 52 and the part of the left and right support pipes 43L and 43R to which the reinforcing plate 43a is fixed are connected to the connecting rod 49 horizontally. When the heights match, the length of the left support pipe 4 3 L insertion section 4 3 c is L 1, and the length of the right support pipe 4 3 R insertion section 4 3 c is L Assuming that 2, L 1> L 2, so that the upper end of the support pipe 43L is higher than the upper end of the support pipe 43R. A pin hole 43d is provided on the side surface of each insertion portion 43c so as to match the pin hole 41b of the fitting pin 41 inserted in the human portion 43c. After inserting the fitting pin 4 1 into the insertion portion 4 3 c of the support pipe 4 3, insert a fixing pin into the pin hole 4 3 d • 4 1 b, and insert the fitting pin 4 1 into the support pipe 4. It is fixed to 3 respectively.

On the other hand, as shown in FIG. 6, a tab 4 2 having an engagement hole 4 2 a is formed in the upper center of the rear surface of the divided seedling mounting table 16 D, that is, in the left and right center of the upper guide rail 19. Are provided so that the engaging pins 44 provided on the main seedling mounting table 16 M can be engaged with the tabs 42 and fixed. As shown in FIG. 3, the engaging pin 44 is rotatably disposed above the fifth rib 16a from the left end of the main seedling mounting table 16M. As shown in FIGS. 10 and 11, the engaging pin 44 is formed in an L-shape when viewed from the side, and its tip is pointed to facilitate insertion into the engaging hole 42a. ing. When the engagement pin 44 is inserted into the engagement hole 42a, the tip protrudes below the tab 42, as depicted by a virtual line in FIG. A pin hole 44a is opened on the side surface of the protruding portion, and a pin for retaining the engaging pin 44 is inserted into the pin hole 44a.

Further, the base of the engaging pin 44 is bent in a circular shape, and the circular portion is wound around the pivot shaft 65 so that the engaging pin 44 is pivoted on the pivot shaft 65. Support. The pivot shaft 65 protrudes from a support plate 66 a standing on the mounting plate 66. The mounting plate 66 has the same shape as the mounting plate 52, and is fitted into a hole (not shown) formed in the rib 16a. A fixed shaft 66 b · 66 b for insertion is protruded, and the same as that for fixing the mounting plate 52 to the rib 16 a (that is, the main seedling mounting table 16). (Fifth from left of M) Rib 16 Fixed on 16a.

The above is the description of the component configuration for placing and fixing the divided seedling mounting table 16D removed from the main seedling mounting table 16M on the main seedling mounting table 16M. To keep the seedling platform 16 D connected to the right end of the main seedling platform 16 M, that is, to keep the seedling platform 16 wide and work, both seedling platforms 16 D A hook device 45 for connecting and fixing 16 M to each other will be described.

The lock device 45 is divided into a pair of lock rods 45a and lock levers 45b, which are provided as a pair on the main seedling platform 16M, and each lock rod 45a. It consists of a pair of mouth cams 45c arranged on the seedling platform 16D. As shown in Fig. 6, Fig. 17 and Fig. 18, pipes are laid in parallel on the lower guide rail 18 and the upper guide rail 19 of the divided seedling platform 16D, respectively. A lock rod 45a is inserted into the pipe, and a mouth lever 45b is provided at the left end of each lock rod 45a, that is, at the end of the anti-split seedling mounting table 16D mounting side. . The other end of each lock rod 45a protrudes rightward from the right end of the main seedling platform 16M, and the divided seedling platform 16D is attached to the right side of the main seedling platform 16M. At this time, it is inserted into the locking force 45 c arranged on the divided seedling mounting table 16 D. When the two seedling mounting tables 16M and 16D are connected, the lock lever 45b is rotated to one side so that the lock rod 45a is fitted and fixed so as not to come off from the lock cam 45c.

In the configuration described above, a method of removing the divided seedling mounting table 16D and mounting and fixing it on the main seedling mounting table 16M will be described. First, the lock levers 45b are rotated to the opposite side to release the engagement between the mouth locks 45a and the lock cams 45c. Make it removable. Next, hold the handle 40 L and 40 R, shift the divided seedling platform 16 D to the right, remove it from the main seedling platform 16 M, and move it to the upper position of the main seedling platform 16 M. Move.

Since the length difference between the fitting pins 41 R and 41 L is larger than the height difference between the support pipes 43 R and 43 L, first, the longer fitting pin 41 R is placed on the right side. Into the lower support pipe 43R. Separate seedlings are loaded because of lower support pipe 4 3 R The lifting height of the table 16D is small, and the labor can be reduced. Next, insert the shorter fitting pin 41L into the higher supporting pipe 43L on the left side, and insert the fitting pin 41R into the supporting pipe 43R. Until 1 L is inserted into the support pipe 43 L, lift the split seedling platform 16 D slightly upward to position the fitting pin 41 L above the higher support pipe 43 L. There is a need. However, since the fitting pin 41 L is short, the lifting height is small, and the fitting pin 41 R inserted into the support pipe 43 R into which the fitting pin 41 R is inserted does not come off. Therefore, while positioning the mating pin 4 1 L of the divided seedling platform 16 D above the support pipe 43 L, the support pipe 43 R slides with respect to the lifting of the divided seed stage 16 D. It functions as a guide and also as a pivot point for the divided seedling mounting table 16D, so that the fitting pin 41L can be easily and smoothly inserted into the support pipe 43L.

When both the mating pins 4 1L and 4 1R are inserted into the support pipe 4 3L and 4 3R, the inside of the support pipe 4 3L and 4 3R until the pin holes 4 1b and 4 3d match. Adjust the position of the mating pins 4 1L • 4 1R, insert the fixing pins into the pin holes 4 3d4 1b, and prevent the mating pins 4 1L . After the weight of the divided seedling platform 16D is received by the support pipes 43L and 43R in this way, finally, the engaging pin 44 is rotated to split the seedling platform 16D. Engage with the engaging hole 42 on the front of the connector, and insert the fixing pin into the pin hole 44a to prevent it from coming off. With the above operation, the rotation of the divided seedling platform 16D in the front-rear direction and the left-right direction is restricted, and the divided seedling platform 16D is supported on the main seedling platform 16M at three points, one at the top and two at the bottom. It is.

In the above operations, as described above, one of the handles 40 L and 40 R is lowered (the left handle 40 L is lower than the right handle 40 R). This facilitates the fitting of the fitting pin 41 L to the support pipe 43 L during the storage operation, and facilitates the application of force when the divided seedling mounting table 16 D is lifted and moved. In addition, since the handles 40L and 40R are arranged on the left and right sides of the center of gravity G, they can be easily moved without losing balance when moving.

Next, another example of a configuration for supporting the detached divided seedling mounting table 16D on the main seedling mounting table 16M will be described. In the first alternative embodiment shown in FIG. 12, the lengths of the fitting pins 41 L and 41 R are different from each other (in this embodiment, the length of the left fitting pin 41 L is increased). Both While the height difference is provided at the lower end position, the upper ends of the support pipes 43L and 43R are at the same height (that is, the length of the insertion portion 43c shown in FIGS. 8 and 9 described above). L1 = L2). When removing the divided seedling platform 16D and placing it on the main seedling platform 16M, first insert a part of the longer fitting pin 41L into the support pipe 43L, and then The divided seedling mounting table 16D is rotated with the fitting pin 41L as a fulcrum, and the other fitting pin 41R is positioned above the support pipe 43R, and then fitted. The pin 41R is inserted into the support pipe 43R.

In this case, there is no need to consider the relationship between the height difference between the upper ends of the support pipes 43L and 43R and the height difference between the lower ends of the fitting pins 41L and 41R. The pipe 43 can be used as either the left support pipe 43L or the right support pipe 43R, thereby simplifying the manufacturing process.

In addition, in the embodiment shown in FIGS. 3, 8, and 9 in which the support pipes 4 3 L and 43 R are provided with a height difference at the upper end, the insertion pin 41 inserted first is inserted into the support pipe 43. For the sake of simplicity, the right and left support pipes 4 3 with height differences within the range of the length difference between the left and right insertion pins 41 L and 41 R and originally the same height as shown in Fig. 12 3 It can be said that the upper end position of the support pipe 43 into which the longer insertion pin 41 is inserted is lower than the other support pipe 43 out of L · 43 R.

Next, a description will be given of a second alternative embodiment of the support structure for supporting the divided seedling mounting table 16D on the main seedling mounting table 16M shown in FIGS. 13 and 14. This is one of the two lower and left and right support structures, one of which adopts a method in which the same pin as described above is inserted into the support pipe, and the other has a structure in which the pin is fitted into a concave portion.

As shown in Fig. 13, the length of the mating pin 41 L · 41 R and the height of the upper end of the support pipe 43 L · 43 R are the same. As shown, for one of the left and right support pipes 43R and 43R (in this embodiment, the right support pipe 43R), open the rear surface of the upper part of the pipe corresponding to the inlet 43c, and Both sides of the opening are widened so that the fitting pins 41 can easily enter from the opening, and are provided as guides 43-43 e. In this way, a U-shaped concave portion having a rear opening shape as viewed in the axial direction is formed, and the fitting pin 41 is received. Also, in a direction perpendicular to the axis of the support pipe 43 when viewed in the axial direction, the fitting pin 41 fitted in the concave portion is prevented from coming off. The retaining pin 67 is made accessible to the guide part 43e 43d. However, the retaining pin 67 may be configured to be inserted into the pin mosquito L43d and the pinhole 41b as described above.

As described above, in the present embodiment, the left support pipe 43 L inlet portion 43 c has the same pipe structure as the previous embodiment, and the right support pipe 43 R inlet portion 43 c. A concave portion having a rear opening shape is formed in a corresponding portion. When removing the divided seedling mounting table 16D and placing it on the main seedling mounting table 16M, first move the fitting pin 41L in the direction of its axis to support the support pipe 43L. Insert When the divided seedling mounting table 16D is positioned in the left-right direction so as to be parallel to the main seedling mounting table 16M with the fitting pin 41L as a fulcrum, the fitting pin 41R is 3 e · 43 e enter between them while being guided, and only slightly move forward, that is, in the radial direction of the fitting pin 41 R, and the fitting pin 41 R is supported by the support pipe 43 R. Is inserted into the recess. Thereafter, the fitting pin 41R is fixed in the recess of the support pipe 43R by the retaining pin 67. In this way, the mating pins 41L, 41R and the support pipes 43L, 43R are fitted to receive the load of the divided seedling platform 16D, and then the engaging pins 44 are rotated. Then, it is inserted into the engaging hole 42 a of the tab 42 and fixed, thereby preventing the divided seedling mounting table 16 D from rotating.

Next, a description will be given of a third embodiment of the support structure of the divided seedling mounting table 16D shown in FIGS. 15 and 16 on the main seedling mounting table 16M. On the back surface of the divided seedling mounting table D, a pair of left and right rollers 170 having an axis perpendicular to the back surface is rotatably arranged. On the other hand, as shown in FIG. 15, the right and left horizontal rails 71 are rotatably engaged with the pair of rollers 170 above the seedling mounting surface of the main seedling mounting table 16M. It extends to the right from the left and right central portions of the main seedling platform 16 M, that is, to the side where the divided seedling platform 16 D is attached. The right end is located above the substantially right end of the main seedling mounting table 16M, and one end of the folding rail 71a is pivotally supported on the right end of the rail 71. The folding rail 71a extends along the extension of the rail 71 when the divided seedling platform 16D is stored on the main seedling platform 16M. Like an imaginary line, it can be folded. The main seedling mounting table 16 M and the divided seedling mounting table 16 D are connected and fixed by the same hooking device 45 as described above.

In such a configuration, when reducing the width of the seedling mounting table 16, first, Release the lock in place 45, rotate the upper part of the divided seedling mounting table D backward, and extend the folding rail 71a. Then, slightly lift the divided seedling mounting table D, place the roller 0.70 on the rail 71, and lift the lower part of the divided seedling mounting table D onto the main seedling mounting table 16M. And move it. At this time, since the load of the divided seedling mounting table D is applied to the rail 71 via the rollers 70-70, the divided seedling mounting table D can be easily and lightly moved. Then, if the locking is performed by attaching a lock (not shown), the divided seedling mounting table D can be mounted and fixed on the main seedling mounting table 16M.

Finally, the wiring structure between the main seedling platform 16M and the divided seedling platform 16D will be described. A flasher lamp 54 and a seedling splicing sensor 55 are arranged on the main seedling mounting table 16 M and the divided seedling mounting table 16 D, respectively, as shown in FIGS. 3 to 5 and 18. In addition, power is supplied to the flasher lamp 54 and the seedling splicing sensor 55 of the divided seedling mounting table 16D from the main seedling mounting table 16M side, and a control signal is transmitted.

As a power supply structure from the main seedling mounting platform to the divided seedling mounting platform, in a conventional seedling mounting platform having a foldable split seedling mounting platform, an expandable and contractible force cord is used. Although the wiring was given with a margin for the cord, the split seedling mounting table was allowed to be folded.However, the cord could easily be caught by other parts when folded or set in the working state, which could cause damage. there were. Also, even if the split seedling platform was removed from the main seedling platform for maintenance, the range in which the split seedling platform could be moved was determined by the code.

If the split seedling mounting table is configured to be detachable as in the case of the seedling mounting table 16 of the present invention, it is necessary to provide extra cord space, and the problem of catching and breakage is further increased. Even if the code can be attached and detached when the split seedling platform is attached to and detached from the main seedling platform, it is necessary to make the cord's cutting part a waterproof part. I was in love.

Therefore, in the rice transplanter of the present embodiment, as shown in FIG. 17, opposing side ends of the divided seedling stage 16D and the main seedling stage 16M, ie, both seedling stages 16 Outlet type connectors 60a and 60b are arranged at the joints of D16M, respectively.The connector 60a arranged on the divided seedling platform 16D has a flasher lamp 54. The code connected to the seedling propagation sensor 1-5 is connected. The connectors 60a and 60b are waterproof. With this configuration, the divided seedling platform 1 6 D can be removed simply by moving it to the side (to the right), and by simply moving it in the opposite direction (to the left), it can be set to the working state and the wiring can be connected. Therefore, there is no danger of the cord being entangled and cut.

Further, as shown in FIG. 18, it is possible to use the lock device 45 as a contact. That is, the ground-side conductor was wired to the main seedling platform 16M, and the contact for power supply to the two seedling splicing sensors 55 provided on the divided seedling platform 16D was Locking force 45 5 c. Provided on 45 c. Then, in the divided seedling mounting table 16M, the lock rod 45a made of the upper and lower two metals is used as it is as a conductive member to each seedling splicing sensor 15 (preferably, the lock rod 45 The surface of a is covered with a non-conductive member.) Each seedling connection sensor 55 is connected to each mouth rod 45a. Therefore, if both lock rods 45a are inserted into the lip cams 45c, respectively, and the divided seedling platform 16D is mounted on the main seedling platform 16M, the divided seedling platform 16M is simultaneously placed. The conductors for the two seedling splicing sensors 155 are connected to the ground side conductor of the main seedling platform 16M.

In the embodiment of the seedling stage 16 shown in FIG. 18, the positioning members 56 d and 56 m for mounting the divided seedling stage 16 D to the main seedling stage 16 M are respectively provided. The divided seedling mounting table 16D and the main seedling mounting table 16M are provided opposite to each other at the opposite end, and the contact provided on the positioning member 56m of the main seedling mounting table 16M is a flash lamp. Also serves as a contact point for supplying power to 54, and the ground-side conductor of the flash lamp 54 is wired to the main seedling platform 16M. With this configuration, when the divided seedling mounting table 16D is set to the main seedling mounting table 16M and locked in the working state as described above, the flash lamps 54 of the divided seedling mounting table 16D and The two seedling splicing sensors 55 conduct. If the lock is insufficient, it will not conduct and the seedling splicing sensor 155 of the divided seedling platform 16D will be cut off, so that an alarm will be issued in the operation section of the rice transplanter. Industrial applicability

As described above, the seedling mount of the rice transplanter according to the present invention can be used for an eight-row rice transplanter or a multi-row rice transplanter other than the eight-row rice transplanter. This is effective when transporting and storing.

Claims

The scope of the claims

1. A main seedling mounting table fixed to a rice transplanter, and one or more split seedling mounting stands removably attached to at least one side of the main seedling mounting table. The seedling mounting of the rice transplanter, wherein the detached divided seedling mounting can be placed and fixed above the main seedling mounting.

2. At least two supported portions are formed in the left and right direction on the back side of the divided seedling mounting table, and the divided seedlings are supported on the seedling mounting surface side of the main seedling mounting table by supporting the supported portion. 2. The seedling mounting table for a rice transplanter according to claim 1, wherein the support section is configured to receive a load in a gravity direction of the mounting table.

3. At least one of the supported portions of the divided seedling platform is a pin extending substantially below the back surface thereof, and the support portion of the main seedling platform has a structure in which the pin is fitted. 3. The seedling mounting table for a rice transplanter according to claim 2, wherein:

4. The seedling of a rice transplanter according to claim 3, wherein a cylindrical member configured to fit the pin in the axial direction thereof is provided at the support portion of the main seedling mounting table. Mounting platform.

5. The seedling mounting device for a rice transplanter according to claim 3, wherein a concave member configured to fit the pin in the radial direction is provided in the support portion of the main seedling mounting table.

6. The pins constituting the supported portion of the divided seedling mounting table are disposed at two points on the left and right, and the main seedling mounting table is provided with a cylindrical member for fitting each pin in the axial direction thereof. The seedling platform of the rice transplanter described in Paragraph 3 of the scope of special claims.

7. The insertion length of each of the left and right pins into each of the tubular members is different. 7. The seedling table of a rice transplanter according to claim 6, characterized in that:

8. At least one upper supported portion is formed at a position higher than the supported portion on the back side of the divided seedling mounting platform, and the upper supported portion is provided on the seedling mounting surface side of the main seedling mounting platform. 3. The seedling mounting table for a rice transplanter according to claim 2, wherein an upper support section is configured to support the section and restrict the deflection of the divided seedling mounting table.

9. A supported part and a support part for receiving the load in the gravitational direction of the divided seedling mounting table are provided at two points on the left and right, and at a higher position, the swing of the divided seedling mounting table is restricted. It is characterized in that one upper support part and one upper support part are provided, and the divided seedling mounting table is mounted and fixed on the main seedling mounting table at three points, one upper point and two lower right and left points. 9. The seedling mounting table of the rice transplanter according to claim 8.

10. The seedling of a rice transplanter according to claim 1, wherein grippers are provided on both left and right sides of the divided seedling mounting table, and one of the left and right grippers is disposed at a position higher than the other. Loading

11. The rice transplanter according to claim 1, wherein grippers are provided on both left and right sides of the divided seedling mounting table, and the left and right grips are disposed with the center of gravity of the divided seedling mounting table interposed therebetween. Seedling platform.

12. The seedling mounting table for a rice transplanter according to claim 1, wherein the divided seedling mounting table has a two-row width.