WO2018169114A1

WO2018169114A1 - Door stopper

Info

Publication number: WO2018169114A1
Application number: PCT/KR2017/002990
Authority: WO
Inventors: 노수곤
Original assignee: 노수곤
Priority date: 2017-03-17
Filing date: 2017-03-21
Publication date: 2018-09-20

Abstract

A door stopper, according to the present invention, comprises: a frame fixed on one surface of a door; a support coupled to the frame so as to enable the support move vertically such that a lower end can come into contact with the floor positioned in the movement range of the door, and having a latch part; a support restoring spring provided in the frame and providing, the support, with elastic restoring force in an ascending direction; a locker provided in the frame and engaged with the latch part of the support for fixing the position of the support; and a locking release pusher movably coupled to the frame and transmitting the applied external force to the locker so as to release the engagement of the locker engaged with the latch part of the support.

Description

Door stopper

The present invention relates to a door stopper installed below the door, and more particularly, to a door stopper for more user-oriented operation relationship for fixing the open state of the door or release the state of the fixed door.

In general, a door stopper installed in a doorway structure at a doorway of a home or office is installed at a lower part of the door stopper to fix the door in an open state. It is designed to lock the open state or to release the locked state. The door stopper can be conveniently used to ventilate the air in the room or to open the door only slightly without necessity.

The conventional door stopper includes a bracket fixed to a lower side of the door by a screw, a support member rotatably coupled to the bracket by a hinge shaft, and a friction member coupled to the lower end of the support member.

The door stopper does not affect the opening or closing operation of the door when the support member is folded upward so that the friction member faces upward, and the friction member contacts the bottom when the support member is flipped downward. It will suppress the movement of.

Such a conventional door stopper has a disadvantage in that it is cumbersome for the user to flip the support member downward or upward by the foot or hand, and in particular, it is not easy to operate with the foot, which is quite inconvenient for use by the elderly and young children.

In order to solve the problem of the conventional door stopper, various door stoppers have been proposed that can automatically restore the supporting member using a spring.

However, the door stopper having the automatic restoring function also has a supporting member that rotates with respect to the door, so that it is not easy for the user to operate without using his or her hand, and thus there may still be problems in user convenience and ease of operation.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the background as described above, and provides a door stopper that is convenient and easy to operate while the user is standing (standing) without bending the waist or using his hands. The purpose.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. In addition, the objects and advantages of the present invention can be realized by the configuration shown in the claims and combinations thereof.

Door stopper of the present invention for achieving the above object, the frame is fixed to one surface of the door; A pedestal coupled to the frame so as to be movable up and down so that a lower end may contact the floor positioned within the movable range of the door; A pedestal restoring spring installed on the frame, the pedestal restoring spring providing elastic restoring force in an upward direction to the pedestal; A locker installed on the frame, the locker being engaged with the engaging portion of the pedestal to fix the position of the pedestal; And a lock release pusher movably coupled to the frame and transmitting an external force applied to the locker to release the engagement of the locker engaged with the engaging portion of the pedestal.

The locker includes a rocker body fixed to the frame and a detent supported elastically deformable to the rocker body so that the engaging portion of the pedestal is caught, and the unlocking pusher crosses the movement direction of the pedestal. And a push rod connected to the pusher body and pressing the detent so that the detent is spaced apart from the locking portion of the pedestal.

The pedestal may include a lifting member coupled to the frame so as to be movable up and down, and a friction member coupled to a lower end of the lifting member so as to contact the floor.

The friction member is partially inserted into a friction member insertion groove provided at the lower end of the elevating member and coupled to the elevating member, and the friction member inclined with respect to the bottom to be in surface contact with the friction member at the lower end of the elevating member. An inclined contact surface may be provided, and an upwardly inclined elevating member inclined contact surface may be provided at an upper end of the friction member to correspond to the inclined contact surface of the friction member.

The engaging portion of the pedestal may include a plurality of teeth disposed along the moving direction of the pedestal and engaged with the detent.

The door stopper of the present invention may further include a pusher restoring spring that provides an elastic restoring force to restore the unlocking pusher to its original position.

The locker may be coupled to the frame by a fusible joining member such that the locker may be separated from the frame by melting over a set temperature.

The soluble bonding member may be made of a low melting point metal.

The door stopper according to an embodiment of the present invention can secure the door to the floor by a simple operation by which the user presses or presses the pedestal toward the floor, as well as a simple operation of the user pressing the unlocking pusher. It can release the holding force so that the user can conveniently operate the door stopper in the standing state without using other body parts, thereby realizing the device more user-oriented.

In addition, the door stopper according to an embodiment of the present invention can automatically release the fixing force for the door when a fire occurs, it can reduce the risk of safety accidents in an emergency situation.

The following drawings, which are attached to this specification, illustrate exemplary embodiments of the present invention, and together with the detailed description of the present invention, which serve to more effectively understand the technical spirit of the present invention, the present invention is described in these drawings. It should not be construed as limited to matters.

1 is a view illustrating a door stopper installed in a door according to an embodiment of the present invention.

Figure 2 shows an exploded view of a part of the configuration of the door stopper according to an embodiment of the present invention.

Figure 3 is a rear perspective view showing a door stopper according to an embodiment of the present invention.

Figure 4 is a front exploded perspective view showing a door stopper according to an embodiment of the present invention.

Figure 5 is a rear exploded perspective view showing a door stopper according to an embodiment of the present invention.

6 is a cross-sectional view showing a door stopper installed in the door according to an embodiment of the present invention.

7 is for explaining the operation of the door stopper according to an embodiment of the present invention.

8 is for explaining the door holding force release action when the fire of the door stopper according to an embodiment of the present invention.

9 is a cross-sectional view showing a door stopper installed in the door according to another embodiment of the present invention.

1 to 6, the door stopper 100 according to an embodiment of the present invention is a frame 110 which is fixed to the door 10, and a pedestal coupled to the frame 110 to be movable up and down ( 130, a pedestal restoring spring 155 coupled to the frame 110 to apply an elastic force to the pedestal 130, a locker 160 coupled to the frame 110 to fix the pedestal 130, and a locker ( An unlocking pusher 170 operatively coupled to frame 110 to move 160, and a pusher restoring spring 175 coupled to frame 110 to apply an elastic force to unlocking pusher 170. .

The door stopper 100 may fix the door 10 in an open state by allowing the pedestal 130 to contact the floor 20 positioned within the movable range of the door 10.

The frame 110 is fixed below one surface of the door 10. The frame 110 includes a door fixing plate 112 fixed to the door 10, which is provided with a pedestal guide 115 and a pusher guide 118.

The door fixing plate 112 may be fixed to its rear surface by surface contact with one surface of the door 10. According to the exemplary embodiment, the door fixing plate 112 may include a fixing member 30 such as a screw passing through the fixing hole 113. It may be fixed to the door 10 in a manner that is coupled to the door 10. The door fixing plate 112 may be fixed to the door 10 in various ways other than the method using the fixing member 30.

The pedestal guide 115 may be disposed at the center of the front surface of the door fixing plate 112 and has a pair of guide grooves 116 to which the pedestal 130 is partially inserted to move up and down. These guide grooves 116 are spaced apart from each other and disposed in parallel with the moving direction of the pedestal 130.

The pedestal guide 115 supports the pedestal 130 to be linearly movable. In addition to the illustrated structure, the pedestal guide 115 may be changed to various other structures that can support the pedestal 130 to be stably moved up and down without being twisted or shaken according to the structure of the pedestal 130.

The pusher guide 118 is disposed on the front surface of the door fixing plate 112 to support the unlocking pusher 170 to be movable. The pusher guide 118 includes a plurality of guide bosses 119 disposed on both sides of the pedestal guide 115. These guide bosses 119 have a shape projecting forward from the front of the door fixing plate 112, each guide boss 119 is provided with a slide groove (120).

The slide groove 120 may be disposed perpendicular to the moving direction of the pedestal 130. The pusher guide 118 guides the unlocking pusher 170 to move perpendicularly to the moving direction of the pedestal 130. In addition to the illustrated structure, the pusher guide 118 may be changed to various other structures capable of supporting the unlocking pusher 170 so as to stably move in a straight line without twisting or shaking in accordance with the structure of the unlocking pusher 170. .

In addition, the frame 110 includes a first spring support 122 and a second spring support 124. The first spring support 122 is disposed at one side of the front surface of the door fixing plate 112 to support one end of the pedestal restoring spring 155. The second spring support part 124 is disposed on one side of the front surface of the door fixing plate 112 so as to support one end of the pusher restoring spring 175.

In addition to the illustrated structure, the frame 110 is fixed to the door 10 and is fixed to the pedestal 130, the locker 160, the unlocking pusher 170, the pedestal restoring spring 155 and the pusher restoring spring 175. It can be changed to various other structures that can support the.

The pedestal 130 is coupled to the frame 110 so as to be movable up and down so that the bottom thereof may contact the bottom 20 positioned within the movable range of the door 10. The pedestal 130 includes a lifting member 132 coupled to the frame 110 so as to be movable up and down, and a friction member 150 coupled to the bottom of the lifting member 132 so as to contact the bottom 20. .

The elevating member 132 includes a movable body 134 slidably coupled to the pedestal guide 115 of the frame 110 and an operation head 145 coupled to an upper end of the movable body 134. The movable body 134 and the operation head 145 may be coupled to each other in various ways, such as a coupling method by the fixing member 40 such as a screw as shown.

The movable body 134 includes a base portion 135 to which the friction member 150 is coupled, and a pair of

pillar portions

137 and 138 protruding from an upper surface of the base portion 135. The lower side of the base 135 is provided with a friction member insertion groove 136 for coupling the friction member 150. The pair of

pillars

137 and 138 are spaced apart from each other and disposed in parallel with the guide grooves 116 of the pedestal guide 115, and the guide grooves 116 are inserted into the pair of guide grooves 116, respectively. Can move straight along.

On one side of the outer surface of each of the

pillars

137 and 138, the locking portion 140 is provided. In the drawing, although each of the

pillar parts

137 and 138 shows a shape in which the locking parts 140 are provided, the locking parts 140 may be provided only on one side according to the exemplary embodiment.

The catching part 140 includes a plurality of teeth 141 disposed along the moving direction of the pedestal 130, and each of the plurality of teeth 141 may be engaged with the locker 160 and the pedestal 130. In the lowered state, any one of the plurality of teeth 141 is engaged with the locker 160 so that the pedestal 130 may be fixed in the lowered state.

The tooth 141 has a locking jaw 142 that may be caught by the locker 160, and an inclined portion 143 disposed to be inclined with respect to the bottom 20. The locking jaw 142 is disposed substantially horizontally with respect to the bottom 20. When the movable body 134 receives the force in the upward direction, the locking jaw 142 of the teeth 141 is caught by the locker 160. The upward movement of the movable body 134 is suppressed.

On the other hand, when the movable body 134 is forced downward, the inclined portion 143 of the teeth 141 may push the locker 160 over and the movable body 134 is not affected by the locker 160 Can move downward without

The locking unit 140 may be changed into various other forms that may be caught by the locker 160 in addition to the configuration including a plurality of teeth 141 disposed in the vertical direction. For example, the locking portion may take the form of one groove or protrusion that may be caught by the locker 160 in a state where the pedestal 130 is lowered so that the friction member 150 contacts the bottom 20.

The operation head 145 of the elevating member 132 includes a pressing part 146 for a user operation, and a neck part 147 disposed under the pressing part 146. The pressing part 146 has a shape where the upper surface thereof is parallel to the bottom 20 so that the user can easily press the foot using the foot. The neck portion 147 protrudes downward from the lower surface of the pressing portion 146 and is interposed between the pair of

pillar portions

137 and 138 of the movable body 134. The neck portion 147 is provided with a spring insertion groove 148, and the pedestal restoring spring 155 is partially inserted into the spring insertion groove 148.

One end of the pedestal restoring spring 155 is supported by the first spring support 122 of the frame 110 and the other end thereof is inserted into the spring insertion groove 148 of the operation head 145 to be engaged with the operation head 145. do. The pedestal restoring spring 155 may be compressed when the pedestal 130 descends to provide the pedestal 130 with an elastic restoring force in the upward direction. Therefore, the pedestal 130, which the user pushes down the operation head 145, can be restored to its original state by the elastic force of the pedestal restoring spring 155.

The friction member 150 may be coupled to the lifting member 132 in a manner of being partially inserted into the friction member insertion groove 136 of the movable body 134. The friction member 150 is lowered together with the elevating member 132 when the user presses the operation head 145 to contact the bottom 20 to prevent the door 10 from being pushed. The friction member 150 is preferably made of a material with a large coefficient of friction, such as rubber so as not to slip easily on the bottom (20). The friction member 150 may be firmly fixed to the elevating member 132 in various ways such as mechanical fixing through a fixing member such as a screw or adhesion by an adhesive.

The locker 160 is coupled to the frame 110 to be engaged with the locking portion 140 of the pedestal 130 to fix the position of the pedestal 130. When the pedestal 130 descends such that the bottom thereof contacts the bottom 20, the locker 160 is engaged with the catching part 140 to fix the pedestal 130 in a lowered state. The locker 160 includes a rocker body 162 fixed to the frame 110 and a detent 165 elastically deformablely connected to the rocker body 162.

The rocker body 162 has a through hole 163 corresponding to the rocker coupling hole 126 provided in the frame 110. The rocker body 162 may be coupled to the frame 110 through the soluble bonding member 180, for example, the soluble bonding member 180 may be connected to the frame 110 through the through hole 163 of the rocker body 162. The locker body 162 may be coupled to the frame 110 in such a manner that the locker body 162 is inserted into the locker coupling hole 126.

The soluble bonding member 180 is melted above a set temperature, and melts when the ambient temperature rises in a fire, thereby losing the bonding function and allowing the rocker body 162 to be detached from the frame 110. The soluble bonding member 180 may be made of various materials that can be melted at a temperature higher than a set temperature at the time of design such as a low melting point metal.

The detent 165 is supported by the rocker body 162 and the end thereof is disposed so as to protrude toward the locking portion 140 of the pedestal 130, and the upper direction of the pedestal 130 through the locking action with the locking portion 140 You can restrict movement. That is, when the pedestal 130 receives the force in the upward direction, the locking jaw 142 of the teeth 141 facing the detent 165 is caught by the detent 165, thereby moving upwardly of the pedestal 130. This is suppressed.

On the other hand, when the pedestal 130 receives the force in the downward direction, the inclined portion 143 of the tooth 141 pushes the detent 165, wherein the detent 165 is elastically deformed to the As it is pushed outwards, the tooth 141 can pass over the detent 165. Therefore, the detent 165 may limit only the upward movement of the pedestal 130 and does not limit the downward movement of the pedestal 130.

The unlocking pusher 170 is movable to the frame 110 to transmit the applied external force to the locker 160 to release the locking of the locker 160 coupled to the locking portion 140 of the pedestal 130. To be combined.

The unlocking pusher 170 includes a pusher body 172 operatively coupled to the frame 110 for user manipulation, and a push rod 174 coupled to the pusher body 172 to press the locker 160. Include.

The pusher body 172 is coupled to the frame 110 to move in a direction crossing the moving direction of the pedestal 130. The pusher body 172 is provided with a plurality of coupling rods 173 corresponding to the plurality of guide bosses 119 provided on the frame 110.

The coupling rod 173 protrudes in parallel with the direction of movement of the pusher body 172 from the pusher body 172, and the coupling rod 173 is inserted into the slide groove 120 of the guide boss 119 and slides. 172 may linearly move in a direction perpendicular to the moving direction of the pedestal 130.

The pusher body 172, as shown, so that the pedestal guide 115, the push rod 174, the first spring support 122 and the second spring support 124 of the frame 110 is not exposed to the outside. It may be formed in various shapes such as a shape covering the entire surface of the frame 110 as a whole.

The push rod 174 protrudes from one side of the pusher body 172 in parallel with the moving direction of the pusher body 172. When the pusher body 172 moves toward the door fixing plate 112, the push rod 174 presses the detent 165 of the locker 160 to hold the detent 165 by the latch 140 of the pedestal 130. Elastic deformation so as to be spaced apart from.

The push rod 174 may retreat in the push rod insertion hole 128 provided in the frame 110 to press the detent 165 of the locker 160 when the pusher body 172 is pressed by the user. .

The specific configuration of the unlocking pusher 170 is not limited to the illustrated and may be variously changed. In addition, the unlocking pusher 170 is coupled to the frame 110 through various other coupling structures in addition to the coupling structure using the plurality of coupling rods 173 and the plurality of guide bosses 119 provided in the frame 110 to correspond thereto. Can be combined to move in various directions.

The unlocking pusher 170 is elastically supported by the frame 110 by the pusher restoring spring 175, and the pusher restoring spring 175 provides an elastic restoring force to restore the unlocking pusher 170 to its original position.

Accordingly, the unlocking pusher 170 may be moved to the locker 160 by the user and then restored to the original position by the elastic force of the pusher restoring spring 175. The pusher restoring spring 175 is coupled to the unlocking pusher 170 in a form surrounding the push rod 174 and one end of which is supported by the second spring support 124 of the frame 110.

Hereinafter, the operation of the door stopper 100 according to an embodiment of the present invention will be described.

As shown in FIG. 7A, when the user presses the pressing part 146 of the pedestal 130 while the door 10 is open, the pedestal 130 descends to lower the friction member 150 at the bottom of the pedestal 130. ) Contacts the bottom 20. At this time, the pedestal restoring spring 155 is compressed to apply an elastic force to the ascending direction relative to the pedestal 130.

When the pedestal 130 is forced toward the bottom 20, as described above, the plurality of teeth 141 move downward while pushing the detent 165 of the rocker 160 backward so that the pedestal 130 Is not limited to the downward movement by the locker 160.

After the friction member 150 contacts the bottom 20, the teeth 141 located at a height corresponding to the detent 165 of the rocker 160 are engaged with the detent 165. Accordingly, even when the pedestal 130 receives the elastic force of the pedestal restoring spring 155 in the upward direction, the locking jaw 142 of the teeth 141 is caught by the detent 165, thereby preventing the upward movement of the pedestal 130. . As such, the door stopper 100 may fix the door 10 to the open state by maintaining the state in which the friction member 150 contacts the bottom 20.

With the door 10 fixed, as shown in FIG. 7B, when the user presses the unlocking pusher 170, the push rod 174 of the unlocking pusher 170 advances toward the locker 160. To press the detent 165 of the locker 160.

At this time, the detent 165 is elastically deformed to escape from the tooth 141 and the pedestal 130 is raised by the elastic force of the pedestal restoring spring 155. Therefore, the friction member 150 of the pedestal 130 is separated or separated from the bottom 20 to release the fixing force to the door 10, the door 10 is in a state that can move relative to the floor (20).

On the other hand, the door stopper 100 according to an embodiment of the present invention has a function to automatically release the fixing force of the door 10 in the event of a fire. That is, as shown in FIG. 8, when a fire occurs and the temperature around the door stopper 100 rises above the melting temperature of the soluble joining member 180, the soluble joining member 180 is melted to locker 160. Becomes a state that can be separated from the frame 110.

At this time, the pedestal 130 is raised by the elastic force of the pedestal restoring spring 155, the friction member 150 is spaced apart from the bottom 20 so that the door 10 can move.

As described above, the door stopper 100 according to an embodiment of the present invention allows the user to fix the door 10 to the floor 20 only by a simple operation of pressing the pedestal 130 toward the floor 20. In addition, the user may release the holding force on the door 10 by a simple operation of pressing the unlocking pusher 170.

The door stopper 200 shown in FIG. 9 has the same configuration as that of the door stopper 100 described above, but the structure of the pedestal 210 is somewhat changed.

The pedestal 210 includes an elevating member 212 coupled to the frame 110 so as to be movable up and down, and a friction member 217 coupled to the lower end of the elevating member 212 to be in contact with the bottom 20. .

The elevating member 212 includes a base portion 213 to which the friction member 217 is coupled, and a pair of

pillar portions

137 and 138 protruding from an upper surface of the base portion 213. The

pillars

137 and 138 are the same as described above, and the

pillars

137 and 138 are provided with locking portions 140 that can be locked to the locker 160. The lower side of the base portion 213 is provided with a friction member insertion groove 214 for coupling the friction member 217.

The lower end of the elevating member 212 inside the friction member insertion groove 214 is provided with a friction member inclined contact surface 215 in surface contact with the friction member 217. The friction member 217 is provided with an elevating member inclined contact surface 218 corresponding to the friction member inclined contact surface 215, and the friction member inclined contact surface 215 and the elevating member inclined contact surface 218 are inclined with respect to the floor 20. Is placed. The inclination directions of the friction member inclined contact surface 215 and the elevating member inclined contact surface 218 are in close contact with each other when the elevating member 212 receives a force in the closing direction of the door 10.

The door stopper 200 is a door 10 when the friction member 217 is in contact with the bottom 20 and the door 10 is fixed in the closing direction by a door actuator or the like. The closing direction of the force is transmitted to the elevating member inclined contact surface 218 of the friction member 217 through the friction member inclined contact surface 215 of the elevating member 212.

Therefore, even if the elevating member 212 receives a force in a direction parallel to the bottom 20, some of the force applied to the friction member 217 by the elevating member 212 are distributed by the force toward the bottom 20. . By the action between the friction member inclined contact surface 215 and the elevating member inclined contact surface 218, the friction member 217 may increase the adhesion to the bottom 20 to support the door 10 more stably.

Although the present invention has been described above by means of limited embodiments and drawings, the present invention is not limited thereto and will be described below by the person skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of the claims.

Claims

A frame fixed to one side of the door;

A pedestal coupled to the frame so as to be movable up and down so that a lower end may contact the floor positioned within the movable range of the door;

A pedestal restoring spring installed on the frame, the pedestal restoring spring providing elastic restoring force in an upward direction to the pedestal;

A locker installed on the frame, the locker being engaged with the engaging portion of the pedestal to fix the position of the pedestal; And

And a locking release pusher movably coupled to the frame and transmitting an external force applied to the locker to release the engagement of the locker engaged with the locking portion of the pedestal.
The method of claim 1, wherein the locker,

A locker body fixed to the frame, and a detent supported elastically deformable to the rocker body so that the locking portion of the pedestal can be caught;

The locking release pusher may include a pusher body moving in a direction crossing the movement direction of the pedestal, and a push rod connected to the pusher body to press the detent so that the detent is spaced apart from the locking portion of the pedestal. Door stopper, characterized in that it comprises.
The method of claim 2, wherein the pedestal,

And a lifting member coupled to the frame so as to be movable up and down and having a locking portion, and a friction member coupled to a lower end of the lifting member so as to contact the bottom.
The method of claim 3, wherein the friction member,

Partially inserted into the friction member insertion groove provided at the lower end of the elevating member is coupled to the elevating member,

The lower end of the elevating member is provided with a friction member inclined contact surface inclined with respect to the floor so as to be in surface contact with the friction member, the upper end of the friction member is inclined with respect to the friction member inclined contact surface inclined lifting member A door stopper, characterized in that the contact surface is provided.
The method of claim 2, wherein the locking portion of the pedestal,

And a plurality of teeth disposed along the moving direction of the pedestal and engaged with the detent.
The method of claim 2,

And a pusher restoring spring to provide elastic restoring force for the unlocking pusher to return to its original position.
The method of claim 1, wherein the locker,

And a door stopper coupled to the frame by a fusible joining member so as to be separated from the frame by melting made above a set temperature.
The method of claim 7, wherein the soluble bonding member,

A door stopper, comprising a low melting point metal.