KR200310947Y1 - Door stopper - Google Patents

Abstract

The disclosed contents are provided with operating levers on the appropriate part of the swing door which is easily accessible to the user's hand, and the operation levers can be comfortably operated so that the latch can be lifted up and down to lift and lift the door quickly and conveniently. It relates to a door stopper. The lifting door stopper of the present invention has a predetermined space therein and a support frame provided in a vertical direction to the door; An elevating rod installed vertically in the support frame, the elevating rod having a fixing gear attached to the bottom surface at a lower end thereof, and a rack gear having gear teeth at one side thereof at an upper end thereof; A drive gear meshed with the rack gear to rotate; A recovery lever mounted on the shaft end of the drive gear and positioned at an appropriate height outside the door that is accessible by a user's hand to rotate the drive gear; A fixed gear installed in a vertically movable manner to be engaged with the drive gear and the rack gear at the same time to suppress movement of the rack gear, and to move away from the drive gear to allow the rack gear to descend; An operation lever for elevating the fixed gear and engaging or deviating from the drive gear; And a driving spring providing downward driving force to the lifting rods so that the lifting rods move downwards at all times.

Description

Retractable Door Stopper {DOOR STOPPER}

The present invention relates to a door stopper for fixing the door (door) open for ventilation, cleaning or transport of goods, and more specifically, to provide the operating lever at the appropriate part of the swing door that is easily accessible to the user's hand The present invention relates to an elevating door stopper which can be easily and quickly fixed and released by operating the control levers comfortably so that the stopper can be lifted up and down.

In general, the entrance doors and fire doors of the building need to be kept open with ventilation, cleaning, transporting goods, and people frequently coming in and out. In order to keep the door open, the wedge was fixed to the bottom of the conventionally opened door. These wedges are usually made of small pieces of wood, so they are inconvenient to use, they often occur, and they must be placed next to the door.

Therefore, there is a use of mounting the folding stopper to the door in a more improved manner than the wedge-shaped fixing means, an example of this is shown in FIG.

1 is a view showing a conventional general door stopper.

As shown, the door stopper 20 supporting and fixing the lower end of the door 10 is rotatably fixed to the support bar 24 having a predetermined length to the bracket 22 is coupled to the lower portion of the door 10 It is composed. The door stopper 20 having such a structure rotates the support bar 24 folded in the door 10 to be in close contact with the bottom surface 30 of the building structure, thereby fixing the door 10 in an open state. In addition, when the door 10 is to be moved, the support bar 24 which fixes the door 10 to the bottom surface 30 may be rotated upward and then folded. At this time, since the support bar 24 is not rotated well on the bottom surface 30, the door 10 is pushed back slightly so that the adhesion of the support bar 24 adhered to the bottom surface 30 is terminated, and in that state. The user had to bend back and hold the support bar 24 by hand and then fold it while rotating upward to return it to its original position.

As described above, the folding door stopper has to be operated by holding the support bar attached to the lower side of the door by bowing the waist, the operation is difficult, cumbersome and inconvenient. In addition, when the door is opened, the distance between the bottom of the door and the bottom surface is not constant. In some cases, the bottom surface is irregular and the distance between the bottom of the door and the bottom surface becomes larger than the length of the support bar of the door stopper. In this case, it was difficult to fix the open door to the desired position.

Accordingly, an object of the present invention is to solve the above-mentioned drawbacks, to provide a control lever in the appropriate portion of the swing door that the user's hand is easily accessible, and to operate the control levers comfortably by lifting By providing the lifting door, it is possible to quickly and conveniently fix and release the door, and to provide a lifting door stopper that can flexibly respond to the fixed height and double the holding force.

DETAILED DESCRIPTION A detailed description of embodiments of the present invention will be made with reference to the accompanying drawings, in which like numbers designate corresponding parts in the drawings.

1 is a view showing a conventional general door stopper,

Figure 2 is a perspective view showing the appearance of the lifting door stopper according to the present invention,

3A and 3B are front and side views of FIG. 2, respectively.

Figure 4 is a longitudinal cross-sectional view showing a state before the door is fixed to the lifting door stopper according to the present invention,

5 is a front view illustrating only the door fixing part of FIG. 4;

Figure 6 is a perspective view showing an extract of the rack gear and the lifting rod of the door stopper,

7 is a perspective view showing in detail the extract the operation lever in the door stopper,

8A and 8B are a perspective view and a front view of the drive gear of the door stopper;

9a and 9b are a perspective view and a front view showing a fixed gear of the door stopper,

10A and 10B are a perspective view and a front view of the auxiliary gear of the door stopper;

11A and 11B are a front view and a bottom view of the recovery lever of the present door stopper;

12 is a longitudinal sectional view showing a state in which a door is fixed by a liftable door stopper according to the present invention;

FIG. 13 is a front view illustrating only the door fixing part of FIG. 12;

14A and 14B are side views of the operation lever portion and the clamping portion showing the pre-operational state of the door stopper;

15A and 15B are side views of the operation lever portion and the clamping portion showing the post-operation state when the distance between the door and the bottom surface of the door stopper is small;

16A and 16B are side views of the operation lever portion and the clamping portion showing the post-operation state when the distance between the door and the bottom surface of the door stopper is about halfway;

17A and 17B are side views of the operation lever portion and the clamping portion showing the state after the operation when the distance between the door and the bottom surface of the door stopper is far.

** Explanation of symbols for main parts of drawings **

100: door stopper 110: support frame

112: upper support frame 114: vertical long hole

116: lower support frame 118: lower incision

120: rack gear 122: gear teeth

124: coupling groove 126: first pin hole

130: drive gear 140: recovery lever

142: fixing hole 150: fixed gear

160: operation lever 170: restoring spring

172: driving spring 180: auxiliary gear

190: lifting rod 192: clamp

194: elastic piece

An elevator door stopper according to the present invention for achieving the above object is a stopper for fixing the door to the bottom surface of the structure in an open state, having a predetermined space therein support frame provided in the vertical direction; An elevating rod installed vertically in the support frame, the elevating rod having a fixing gear attached to the bottom surface at a lower end thereof, and a rack gear having gear teeth at one side thereof at an upper end thereof; A drive gear meshed with the rack gear to rotate; A recovery lever mounted on the shaft end of the drive gear and positioned at an appropriate height outside the door that is accessible by a user's hand to rotate the drive gear; A fixed gear installed in a vertically movable manner to be engaged with the drive gear and the rack gear at the same time to suppress movement of the rack gear, and to move away from the drive gear to allow the rack gear to descend; An operation lever for elevating the fixed gear and engaging or deviating from the drive gear; And a driving spring that provides downward driving force to the lifting rods so that the lifting rods move downwards at all times.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to a preferred embodiment of the present invention.

Figure 2 is a perspective view showing the appearance of the lifting door stopper according to the present invention, Figure 3a and Figure 3b is a front view and a side view of Figure 2, respectively. In addition, Figure 4 is a longitudinal cross-sectional view showing a state before the door is fixed to the lifting door stopper according to the present invention, Figure 5 is a front view showing the door fixing portion of Figure 4 from the front.

As shown in the drawing, the door stopper 100 can be easily installed by attaching the door stopper 100 without damaging the pre-installed door 10. To this end, the door stopper 100 is provided with an elongated support frame 110 in the vertical direction, the upper portion of the support frame 110 is configured with an operation portion, the lower door 10 is fixed to the ground The fixed part is composed. That is, the rack gear 120 is installed in the upper support frame 112 of the support frame 110 so as to be vertically elevated, and the rack gear 120 is meshed with the drive gear 130. The recovery lever 140 is mounted at the end of the shaft 132 protruding from the support frame 110 of the 130. The recovery lever 140 is an operation lever that acts to release the fixed state of the stopper by returning the lowered rack gear 120 to its original state.

The fixed gear 150 is engaged with the above-described drive gear 130 and the rack gear 120 above them. The fixed gear 150 is capable of moving a predetermined portion in the vertical direction. In more detail, both shaft ends of the fixed gear 150 is fitted to the vertical long hole 114 of the upper support frame 112 to be moved up and down. An approximately L-shaped operating lever 160 is coupled to the fixed gear 150 so that the fixed gear 150 can be elevated. Restoration springs 170 are installed on the upper side of the operating lever 160 to hold the operating lever 160 downward. Accordingly, the fixed gear 150 coupled with the operating lever 160 receives a downward force at all times. The drive gear 130 and the rack gear 120 is meshed with. On the other hand, the auxiliary gear 180 is engaged with the lower side of the drive gear 130, thereby preventing the sudden drop of the rack gear 120 due to the rapid rotation of the drive gear 130 can implement a smooth lowering operation of the stopper. It is. The operation lever 160 and the recovery lever 140 described above are conveniently installed on the door 10 at about the height of an adult.

The lower end of the rack gear 120 described above is coupled to the elevating bar 190 in a straight line, and the elevating bar 190 is accommodated in the lower support frame 116 so that only the fastener 192 at its end is lower It protrudes through the lower cutout 118 of the support frame 116. The detent 192 is curved extending from the lower end of the elevating rod 190, the elastic piece 194 is attached to the end thereof in close contact with the bottom surface 30 of the building to secure the door (10). The elastic piece 194 is preferably a rubber material, which prevents damage to the bottom surface 30 and eliminates noise when contacting the bottom surface 30 due to the lowering of the fastener 192, Furthermore, the adhesive force is increased to double the fixing force of the door 10.

The driving spring 172 is fitted to the lifting bar 190, and the upper end of the driving spring 172 is supported by the first spring support jaw 119 protruding the inner surface of the lower support frame 116 and the driving spring. The lower end of 172 is supported by the second spring support jaw 196 protruding the outer surface of the elevating rod 190. Accordingly, the driving rod 172 is compressed before the elevating rod 190 is fixed, that is, before the stopper is operated. When the rack gear 120 is released by the rising of the fixed gear 150, the compressed driving spring is compressed. As the 172 expands, the lifting bar 190 is elastically lowered so that the fastener 192 comes into close contact with the bottom surface 30. As such, the lowering operation of the elevating rod 190 is achieved by the driving spring 172. The elastic action of the driving spring 172 in the present invention is the first and second spring support jaw (119,196) described above in addition to the structure of forming the lower support frame 116 and the lifting rod 190, respectively of the lifting rod 190 Any mounting structure capable of providing the resilient force required for lowering is possible.

The support frame 110 to which the above components are mounted may use the door frame as it is, and then the operating mechanism of the stopper 100 is accommodated in the door 10.

6 is a perspective view showing the rack gear and the elevating rod of the door stopper as shown, the rack gear 120 is formed with gear teeth 122 only on one side of the straight member and the coupling groove downward at the bottom 124 is formed, and the first pin hole 126 is formed to the side of the lower end portion where the coupling groove 124 is formed. The lifting bar 190 is formed with a coupling protrusion 198 corresponding to the coupling groove 124 and an upper end thereof corresponding to the coupling groove 124, and a second pin hole 199 is formed on the side of the coupling protrusion 198. By placing the first pin hole 126 in a straight line, the fixing pin 128 is inserted from the side to couple the lifting rod 190 to the bottom of the rack gear 120. The lifting bar 190 is preferably configured as a circular rod, in addition, it may be configured as a polygon rod, such as a square rod, a hexagonal rod. A second spring support jaw 196 supporting the lower end of the driving spring (not shown) protrudes from a predetermined position below the lifting bar 190, and a curved fixing bar 192 extends at the lower end thereof. An end portion of the clamp 192 forms a plate support plate upper portion 192a, and an elastic piece 194 is attached to the bottom of the support plate upper portion 192a to reduce friction and impact upon contact with the bottom surface 30.

Figure 7 is a perspective view showing in detail the extracting the operating lever in the door stopper, the operation lever 160 is a gripping portion for rotatably holding the above-described fixed gear (not shown) branched into two as shown 162 is formed, and pin holes 164 into which the pins are inserted are formed in the gripping portion 162. In addition, the upper end of the operating lever 160 is bent is formed by the operation unit 166 to protrude the operation lever groove of the support frame so that the user can be pushed with a finger, the upper surface of the operation unit 166 to support the restoration spring The support protrusion 168 protrudes.

8a and 8b are a perspective view and a front view showing the drive gear of the door stopper, the drive gear 130 is engaged with the rack gear is rotated and combined with the recovery lever while rotating the lowered rack gear in accordance with the rotation of the recovery lever It is a component that serves to raise and restore the rack gear.

9A and 9B are a perspective view and a front view of the fixed gear of the door stopper, and the fixed gear 150 is made of a very small gear to engage with the rack gear and the drive gear at the same time or to release the two gears from the drive gear. Perform. As a result, in the engaged state with the drive gear, the raised rack gear is fixed in the state so that the stopper is released. On the other hand, the rack gear is separated from the drive gear to allow the rack gear to descend by elasticity. Let the stopper work.

10A and 10B are a perspective view and a front view of the auxiliary gear of the door stopper, and the auxiliary gear 180 is made of a smaller gear than the driving gear so that the rack gear is lowered by the driving spring and the driving gear is rotated when the driving gear is rotated. In order to prevent the sudden drop of the fasteners of the rack gear and the lifting rods connected to it, it is possible to secure a flexible and stable operation.

11A and 11B are front and bottom views of the recovery lever of the present door stopper. As shown in the drawing, the recovery lever 140 is bent in an approximately L shape and protrudes outwardly of the support frame to be easily held by hand, and a fixing hole 142 is formed to which the shaft end of the drive gear is fixed. The fixing hole 142 may be circular, but it is preferable that the fixing hole 142 has a quadrangular shape as shown in the drawing.

12 is a longitudinal cross-sectional view illustrating a state in which a door is fixed by a liftable door stopper according to the present invention, and FIG. 13 is a front view of the door fixing part of FIG. Now, the operation of the present invention will be described in detail with reference to these drawings and FIGS. 4 and 5 described above.

When the fixed gear 150 is engaged with the drive gear 130 and the rack gear 120 at the same time as the rack gear 120 is raised as shown in FIG. 4, the rack gear 120 is compressed by the compressed driving spring 172. ) The force to lower is braked and the stopper remains in the released state. In such a state, in order to fix the door 10 opened by operating the stopper 100 of the present invention, the user simply pushes the operation lever 160 installed at a position easily accessible by the user. . Then, the fixed gear 150 coupled with the operation lever 160 is lifted up and separated from the drive gear 130 to be rotated and rotated along the rack gear 120, and the restoring spring 170 is compressed. As such, when the fixed gear 150 is separated from the driving gear 130, the braking of the driving gear 130 is released, and the lifting rod 190 connected to the rack gear 120 is mounted thereon and the driving spring 172 is compressed. This expands and descends, and at this time, the driving gear 130 also rotates in a clockwise direction, and the auxiliary gear 180 engaged therewith also rotates to suppress rapid rotation of the driving gear 130. Therefore, when the lifting bar 190 is lowered to prevent the descent of the lifting bar 190 and lowered at an appropriate speed, at this time, the elastic piece 194 of the clamping rod 192 has elasticity and close contact with the bottom surface 30 Pressurized and stopped, the door 10 is fixed to the bottom surface 30 in an open state. Then, when the operating lever 160 that has been pushed upward with the finger is released, the operating lever 160 is restored to its original state by the expansion elasticity of the compressed restoring spring 172 and again with the drive gear 130 and the rack gear 120. At the same time, they will engage and remain stationary. In this state, the recovery lever 140 coupled with the drive gear 130 is in a raised position as shown in FIG. 12 after the operation in a downward position as shown in FIG. 4 before operation.

To release the fixed state of the door 10 on the bottom surface 30 as described above, the recovery lever 140 is rotated in the opposite direction (counterclockwise) as in operation. Then, the drive gear 130 coupled with the recovery lever 140 rotates while counterclockwise, while pushing the fixed gear 150 engaged therewith, thereby raising the rack gear 120. At this time, the fixed gear 150 and the drive gear 130 to be raised in the counterclockwise rotation of the drive gear 130, but a slight friction occurs, but in the low speed state such friction is negligibly small, so any It does not cause any trouble. In particular, when lubricants are applied to the gears, smoother rotation can be induced.

14A and 14B are side views of the operation lever portion and the clamping portion showing the pre-operational state of the door stopper, and FIGS. 15A and 15B are post-operational states when the distance between the door and the bottom surface of the door stopper is small. 16A and 16B are side views of the operation lever part and the clamping part, showing the state after the operation when the distance between the door and the bottom surface of the door stopper is about half, and FIG. 17A and 17B are side views of the operation lever portion and the clamping portion showing the post-operation state when the distance between the door and the bottom surface of the door stopper is far.

Before the operation of the stopper 100, as shown in Figure 14a, the operating lever 160 and the recovery lever 140 is in the correct position, the fastener 192 is spaced apart from the bottom surface 30 as shown in Figure 14b. . In this state, when the operation lever 160 is pushed upward, the clamp 192 is lowered to be in close contact with the bottom surface 30, and the distance between the bottom surface of the door 10 and the bottom surface 30 is short. As shown in 15b, the recovery lever 140 has a small rotation angle. On the other hand, when the distance between the bottom surface and the bottom surface 30 of the door 10 is farther than the previous case, as shown in Figs. 16a and 16b, the rotation angle of the recovery lever 140 is slightly larger. In addition, when the distance between the bottom surface and the bottom surface 30 of the door 10 is farther than that of FIG. 16B, the rotation angle of the recovery lever 140 becomes very large as shown in FIGS. 17A and 17B.

As described above, the stopper 100 is in contact with the door 10 and the bottom surface 30 regardless of the distance in any case, so that the fastener 192 is elastically lowered and contacted to maintain a stable fixing force. In particular, the stopper 100 is a fastener 192 is raised vertically with respect to the bottom surface 30, the adhesion is good and easy to fix and release.

The embodiments disclosed herein are only presented by selecting the most preferred examples to help those skilled in the art from the various possible examples, the technical spirit of the present invention is not necessarily limited or limited only by this embodiment, the present invention Various changes and modifications are possible within the scope without departing from the spirit of the invention, as well as other equivalent embodiments.

As described above, the lifting door stopper according to the present invention is provided by operating levers in the appropriate portion of the swing door that is easily accessible to the user's hand, and by operating the operation levers comfortably so that the fastener can be elevated by lifting It can be fixed and unlocked. In particular, since the operation levers are located in the door part corresponding to the waist of the user, they can be easily held and operated, which is convenient to use. In addition, since the door is fixed to the floor by vertically raising and lowering of the clamp, the fixing and releasing operation is stable, and the clamping force is applied at any height because the pressing force is continuously applied downward (bottom side) by the elastic force of the driving spring. As it descends and adheres to the floor, it has the advantage of excellent capacity for changing height.

Claims (5)

A stopper for fixing the door to the bottom of the structure in an open state, A support frame having a predetermined space therein and provided in a vertical direction to the door; An elevating rod installed vertically in the support frame, the elevating rod having a fixing gear attached to the bottom surface at a lower end thereof, and a rack gear having gear teeth at one side thereof at an upper end thereof; A drive gear meshed with the rack gear to rotate; A recovery lever mounted on the shaft end of the drive gear and positioned at an appropriate height outside the door that is accessible by a user's hand to rotate the drive gear; A fixed gear installed in a vertically movable manner to be engaged with the drive gear and the rack gear at the same time to suppress movement of the rack gear, and to move away from the drive gear to allow the rack gear to descend; An operation lever for elevating the fixed gear and engaging or deviating from the drive gear; And Elevated door stopper including a driving spring for providing a downward driving force to the elevating rod so that the elevating rod is always moved downward. The lifting door stopper according to claim 1, wherein a restoring spring pressurizing the operation lever downwardly engages the fixed gear with the driving gear. The lifting door stopper according to claim 1 or 2, wherein the fixed gear is coupled to a vertical hole formed at both ends thereof in a vertical direction to the support frame to move up or down at a predetermined interval. 2. The lifting door stopper as claimed in claim 1, wherein an auxiliary gear for preventing rapid rotation of the driving gear is engaged with the driving gear. The lifting door stopper of claim 1, wherein the fixing bar protrudes from the support frame while curved in a curved shape from a lower end of the lifting rod, and an elastic piece is attached to a bottom thereof to increase adhesion to the bottom surface.