KR20110003736U - Frame of a collapsible chair - Google Patents

Abstract

The present invention is a frame connecting the backrest and the seat plate of the chair, coupled to the backrest, the rotation frame having an upper support surface at the lower end; A first hinge part formed at a lower end of the pivot frame and having a shaft insertion hole; A fixing frame coupled to the seat plate portion and having a lower support surface formed at an upper end thereof in contact with the upper support surface; A second hinge part formed at an upper end of the fixed frame and having an axial insertion hole; And a rotation shaft inserted in common to the first hinge portion and the second hinge portion to rotate the pivot frame. It relates to a frame for a folding chair comprising a. According to the present invention, it is possible to provide a folding chair frame that can fold the backrest to make a chair that is convenient for storage and movement.

Folding chairs, chair frames, rotating frames, chairs

Description

Frame for folding chairs {FRAME OF A COLLAPSIBLE CHAIR}

The present invention relates to a frame for a foldable chair, and more particularly to a folding chair frame can be made to be convenient for storage and movement, can be folded backrest, and a durable folding chair frame.

The present invention relates to a frame for a folding chair.

1 is a view showing a conventional legless chair.

Referring to FIG. 1, the conventional legless chair 1 largely connects a seat plate 5 on which a user's hip is seated, a backrest 3 on which a user's back is seated, and a seat plate part 5 and a backrest 3. It consists of a frame (10).

In addition, the conventional seating chair 1 as described above cannot be folded between the backrest 3 and the seat plate part 5, and occupies a lot of space during storage and movement of the seating chair 1, resulting in considerable inconvenience.

Not only the above-mentioned seated chair 1 but also the ordinary chair have had the same inconvenience.

An object of the present invention devised to solve the above problems is to provide a folding chair frame that can fold the backrest to make a chair convenient for storage and movement.

In addition, another object of the present invention is to provide a folding chair frame that withstands the load transmitted by the user leaning on the back using the support surface formed in various shapes, and excellent durability.

In addition, another object of the present invention is to provide a frame for a folding chair without failure by distributing the load transmitted from the backrest having a support portion protruding from each frame.

According to a feature of the present invention for achieving the object as described above, in the frame connecting the backrest and the seat plate portion of the chair, the rotation frame is coupled to the backrest, the upper support surface is formed on the lower end, the rotation frame A fixed frame formed at a lower end portion, the first hinge portion having an axial insertion hole, the seat plate portion, and a lower support surface formed at an upper end thereof contacting the upper support surface, and formed at an upper end portion of the fixed frame, And a rotation shaft inserted in common to the second hinge portion having the ball and the first hinge portion and the second hinge portion to rotate the rotation frame.

In addition, the first hinge portion is located on the front of the back side of the lower end of the rotation frame, the second hinge portion is characterized in that located on the front of the back side of the upper end of the fixed frame.

In addition, the pivot frame has an upper support portion protruding to the rear portion at the lower end, and the fixing frame is characterized by having a lower support portion protruding to contact the upper support portion to the rear portion at the upper end portion.

According to the present invention as described above, it is possible to provide a folding chair frame that can fold the backrest to make a chair convenient for storage and movement.

In addition, according to the present invention, by using a support surface formed in various shapes, the user can withstand the load transmitted by leaning on the backrest, it is possible to provide a folding chair frame with excellent durability.

In addition, according to the present invention can be provided with a support for protruding from each frame to distribute the load transmitted from the backrest can provide a folding chair frame without failure.

Specific details of other embodiments are included in the detailed description and the drawings.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various different forms, and the present embodiments merely make the disclosure of the present invention complete, and those of ordinary skill in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the present invention will be described with reference to the drawings for describing a folding chair frame according to embodiments of the present invention.

Figure 2 is an exploded perspective view of a rectangular folding chair frame according to a preferred embodiment of the present invention, Figure 3 is an exploded perspective view of the U-shaped folding chair frame according to a preferred embodiment of the present invention.

Figure 4 is a perspective view showing the back of the frame for a folding chair according to an embodiment of the present invention.

2, 3 and 4, the frame for the folding chair according to a preferred embodiment of the present invention is a rotating frame 20, the first hinge portion 22, the fixed frame 30, the second hinge portion 27 And a rotating shaft 25.

The rotation frame 20 is coupled to the backrest 3 of the chair. Therefore, it is preferable that a fastening portion is formed for coupling with the backrest 3.

In addition, the upper support surface 40 is formed at the lower end. The upper support surface 40 stops the rotation of the rotation frame 20 to withstand the pressure transmitted from the backrest 3 by touching the lower support surface 42 of the fixed frame 30 when the rotation frame 20 is extended. Play a role.

The shape of the upper support surface 40 may be in the long direction in FIG. 2, as shown in FIG. 3, and may be in the shape of a straight line. Various shapes such as a straight line, a circular shape, a semicircle shape, a H-shaped shape, and a triangle may be possible. In addition, the rotation frame 20 may include a protrusion such as a protrusion inserted into the lower support surface 42 when the rotation frame 20 is extended.

The first hinge portion 22 is formed at the lower end of the rotation frame 20 and includes an axial insertion hole 50.

2 and 3, but the first hinge portion 22 is formed in the center of the lower end of the rotation frame 20 and has one shaft insertion hole 50, it may be provided with one or more shaft insertion hole (50). However, it is preferable that the shaft insertion hole 50 does not overlap the shaft insertion hole 52 of the second hinge part 27 because it should be fastened to the second hinge portion 27 by the rotation shaft 25.

The shaft insertion hole 50 is used to be penetrated by the rotation shaft 25 and coupled with the second hinge portion 27.

The first hinge portion 22 may be formed as one casting with the rotation frame 20 and may be attached to the rotation frame 20 through welding or the like.

The fixed frame 30 is coupled to the seat plate portion 5 of the chair, and a lower support surface 42 is formed at the upper end to abut the upper support surface 40.

The lower support surface 42 may also have a shape corresponding to the upper support surface 40.

Referring to FIG. 2, the lower support surface 42 likewise corresponds to the rectangular upper support surface 40.

Referring to FIG. 3, the lower support surface 42 similarly has a U-shaped shape corresponding to the U-shaped upper support surface 40.

However, it is not necessarily the same shape, it is sufficient if a surface on which the upper support surface 42 can be supported is formed.

In addition, when the protrusion is formed in the above-mentioned upper support surface 40, the recessed part which can be inserted and fixed should just be formed.

Accordingly, by using the upper support surface 40 and the lower support surface 42 supporting surfaces formed in such various shapes, the user can withstand loads transmitted by leaning on the backrest and provide a durable folding chair frame. Can be.

In addition, the fixed frame 30 may be coupled to the seat plate portion 50 by welding, or the like, and may be coupled to a coupling portion.

The second hinge portion 27 is formed at the upper end of the fixed frame 30, and has a shaft insertion hole 52.

2 and 3, the second hinge portion 27 is formed on both sides of the upper end of the fixed frame 30, and has two shaft insertion holes 52, but similarly to the first hinge portion 22, one or more shaft insertion holes. (52) may be provided, and the shaft insertion hole (52) is coupled to the shaft insertion hole (50) of the first hinge portion (22) because it must be fastened to the first hinge portion (22) by the rotating shaft (25). It is preferable to provide it so that it does not overlap.

The rotating shaft 25 is commonly inserted into the shaft insertion holes 50 and 52 of the first hinge portion 22 and the second hinge portion 27.

The rotating shaft 25 allows the rotation of the rotation frame 20, and eventually the back 3 of the chair is folded toward the seat plate 5, thereby making it easy to store and move the chair.

In addition, when the lower end of the existing chair frame 10, that is, the frame 10 is configured to rotate the part connected to the seat plate portion 5, there is a risk of damage because of the large amount of load weighted from the backrest, In the case of dividing the frame and rotating it therebetween as in the present invention, the strength of the frame can be used as it is, and since the amount of the load that is weighted from the backrest is small, a chair having low durability and excellent durability can be provided.

5 is a view showing a rotation operation of the folding chair frame according to a preferred embodiment of the present invention, Figure 6 is a view showing a state in which the folding chair according to a preferred embodiment of the present invention folded.

5 and 6, looks at the rotation operation according to a preferred embodiment of the present invention.

When the user uses the chair, the folded pivot frame 20 is unfolded using the first hinge portion 22, the second hinge portion 27, and the rotating shaft 25, so that the upper support surface 40 is the lower support surface. To (42).

In this case, since the upper support surface 40 abuts against the lower support surface 42, even when the user leans against the back, the rotation frame 22 no longer rotates to support the user's back.

When the user intends to store and move, the user may fold the rotation frame 20 toward the seat plate portion 5.

Then, the chair is folded in a state in which the backrest 3 comes into contact with the seat plate portion 5 as shown in FIG. 6.

In the frame for a folding chair according to a preferred embodiment of the present invention, the first hinge portion 22 is located on the front side of the back of the lower portion of the rotating frame 20, the second hinge portion 27 is fixed frame 30 ) It is located in the front of the back of the upper end.

Each hinge portion is preferably located at the front portion, not at the rear portion of each frame, because the rotation frame 20 rotates toward the front portion.

In addition, each hinge portion may be formed to be in contact with the front portion of each frame, it may be formed so that a portion is included in each frame.

In the folding chair frame according to a preferred embodiment of the present invention, the pivot frame 20 has an upper support portion (not shown) protruding to the rear portion at the lower end, and the fixing frame 30 is rear to the upper portion It characterized in that it comprises a lower support (not shown) protruding to abut the upper support.

This is to disperse the load transmitted to the upper support surface 40 and the lower support surface 42 to the upper support and the lower support.

The protruding upper support may protrude in various shapes such as straight, semicircular, and the like, and the lower support that abuts the same is preferably the same as the shape of the upper support.

Each support portion must protrude from the rear of the frame, not the front of the backrest, so that the rotation frame 20 can no longer be rotated.

Therefore, it is possible to provide a frame for the folding chair without failure by distributing the load transmitted from the backrest by providing the support portion protruding from each frame.

Those skilled in the art to which the present invention pertains will understand that the present invention can be embodied in other specific forms without changing the technical spirit or essential features. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is represented by the scope of the claims to be described later rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts are included in the scope of the invention. Should be interpreted.

1 is a view showing a conventional legless chair.

Figure 2 is an exploded perspective view of a rectangular folding chair frame according to an embodiment of the present invention.

Figure 3 is an exploded perspective view of the frame for the U-shaped folding chair according to a preferred embodiment of the present invention.

Figure 4 is a perspective view showing the back of the frame for a folding chair according to an embodiment of the present invention.

5 is a view showing a rotation operation of the folding chair frame according to an embodiment of the present invention.

Figure 6 is a view showing a state in which the folding chair folded according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

1: legless chair 3: backrest

5: seat plate 10: frame

20: rotation frame 22: first hinge portion

25: pivot shaft 27: second hinge portion

30: fixed frame 40: upper support surface

42: lower support surface

Claims (3)

In the frame connecting the back of the chair and the seat plate, A rotation frame coupled to the backrest and having an upper support surface at a lower end thereof; A first hinge part formed at a lower end of the pivot frame and having a shaft insertion hole; A fixing frame coupled to the seat plate portion and having a lower support surface formed at an upper end thereof in contact with the upper support surface; A second hinge part formed at an upper end of the fixed frame and having an axial insertion hole; And A rotation shaft inserted in common to the first hinge portion and the second hinge portion to rotate the rotation frame; Folding chair frame comprising a. The method of claim 1, The first hinge portion, Located in the front of the back of the lower portion of the rotation frame, The second hinge portion, Folding chair frame, characterized in that located on the front side of the back of the fixed frame. The method of claim 1, The rotating frame, The lower end has an upper support projecting to the rear, The fixed frame, Folding chair frame, characterized in that provided with a lower support portion protruding to contact the upper support to the rear in the upper end.

Images