Stopper for door

Abstract

The present invention relates to a door stopper, and more particularly to a door stopper that is mounted on a rotating door (hinged door) and can maintain the door in an open state. The door stopper of the present invention comprises: a fixed member coupled to a door; a rotatable support member rotatably coupled to the fixed member; an elastic stop member made of an elastic material coupled to the other end of the rotatable support member; and a first rotation axis and a second rotation axis that rotatably coupled one end of the rotatable support member to the fixed member; The device comprises an elastic member, wherein one end is coupled to the first rotation axis and the other end is coupled to the second rotation axis; wherein the second rotation axis is coupled to the fixed member and does not rotate independently of the rotation support member when the rotation support member rotates, and when the rotation support member rotates downward so that the elastic stop member contacts the ground, one end of the elastic member rotates together with the first rotation axis and the rotation support member, and the other end of the elastic member coupled to the second rotation axis does not rotate, thereby causing twisting in the elastic member, and the other end of the elastic member rotates relative to the fixed member and the rotation support member due to an external force, thereby allowing the twisting force of the elastic member to be varied by rotating the other end of the elastic member with respect to the first end.

Description

Technology Field

[0001] The present invention relates to a door stopper, and more particularly to a door stopper that is mounted on a rotating door (hinged door) and can maintain the door in an open state. Background Technology

[0002] Generally, a door fixing device is called a door stopper, and it is a device that temporarily fixes a hinged door in a desired position while it is open.

[0003] Conventionally, door fixing devices are widely used in which the door is secured to one side of the closing direction of the hinged door, a horizontal pivot is placed at the location of the connection, and when a horseshoe leg connected to the pivot is rotated and lowered, the horseshoe leg touches the ground and secures the hinged door.

[0004] In this case, conventional door locking devices had the inconvenience of requiring the user to rotate the horseshoe leg upward again using their hand or foot to release the hinged door.

[0005] To resolve this inconvenience, a technology has been developed that incorporates a torsion spring, allowing the horseshoe leg to automatically rotate up and down and return to its original position when the door is pushed slightly.

[0006] However, these conventional door stoppers often have a problem in that they cannot adjust the elastic force of the spring, and thus cannot smoothly restore the horseshoe to its original position when the weight of the horseshoe changes or in various other situations.

[0007] In addition, a problem frequently occurs where, when the horseshoe leg rotates downward to descend, it arbitrarily rotates upward and rises due to the elastic restoring force of the spring. Prior art literature

[0008] Registered Patent 10-2384235 Registered Patent 10-2460320 The problem to be solved

[0009] The present invention aims to solve the aforementioned problems by providing a door stopper that can vary the elastic force (twisting force, torsion force) of an elastic member that rotates a horseshoe leg (rotational support member) upward, thereby allowing the horseshoe leg (rotational support member) to be smoothly restored to its original position in various situations, maintain the horseshoe leg (rotational support member) in its original state when rotated downward, and securely fix the stopper to the door without drilling. means of solving the problem

[0010] To achieve the above objective, the door stopper of the present invention comprises: a fixed member coupled to a door; a rotatable support member having one end rotatably hinge-coupled to the fixed member, the other end bent, and a mounting hole formed inside one end; an elastic stopper made of an elastic material coupled to the other end of the rotatable support member and in contact with the ground when the rotatable support member rotates; a first rotation shaft rotatably coupled to the fixed member and detachably coupled to the rotatable support member, with one side of one end of the rotatable support member rotatably coupled to the fixed member; and a second rotation shaft rotatably coupled to the other side of one end of the rotatable support member and detachably coupled to the fixed member. It comprises an elastic member inserted and disposed in the mounting hole, with one end coupled to the first rotation axis and the other end coupled to the second rotation axis; wherein the first rotation axis rotatably penetrates the fixed member and is fixedly coupled to one side of one end of the rotational support member, so as to rotate together with the rotational support member when the rotational support member rotates, and the second rotation axis penetrates the fixed member and is rotatably coupled to the other side of one end of the rotational support member, and does not rotate independently of the rotational support member when the rotational support member rotates while fixedly coupled to the fixed member, and when the rotational support member rotates downward so as to make contact with the ground, one end of the elastic member rotates together with the rotational support member and the other end of the elastic member coupled to the second rotation axis does not rotate, and twisting occurs in the elastic member, and after the second rotation axis is detached from the fixed member by an external force, the The other end of the elastic member is characterized by being able to rotate relative to the first end to vary the torsional force of the elastic member.

[0011] The above elastic member is composed of a coil spring inserted into the mounting hole, wherein the first rotation axis and the second rotation axis are arranged in alignment with the mounting hole.

[0012] A polygonal first chamfer is formed on the outer surface of the first rotating shaft, and a polygonal first fixing groove into which the first chamfer is inserted is formed on one side of the mounting hole, wherein when the first chamfer is inserted into the first fixing groove, the first rotating shaft and the rotating support member rotate together.

[0013] A polygonal second chamfer is formed on the outer surface of the second rotating shaft, and a polygonal second fixing groove is formed in the fixing member into which the second chamfer is inserted. When the second chamfer is inserted into the second fixing groove, the second rotating shaft is fixedly coupled to the fixing member and does not rotate. When the second chamfer is disengaged from the second fixing groove, the second rotating shaft can rotate independently of the fixing member and the rotation support member.

[0014] The rotational support member is disposed on one side of the fixed member, and a magnetic body is disposed on the other side of the fixed member, wherein the magnetic body is arranged such that different polarities alternately repeat in the vertical direction.

[0015] A steel plate is fixedly coupled to the other side of the above-mentioned fixed member, one side of the magnetic body is coupled to the steel plate, and a silicone gel is coated on the other side of the magnetic body.

[0016] A locking projection is formed protruding from the outer surface of one end of the above-mentioned rotating support member, and a locking tab is formed protruding from the above-mentioned fixed member, and when the above-mentioned rotating support member is rotated downward so that the elastic stop member contacts the ground, the locking projection moves over the locking tab and then gets caught on the locking tab, thereby preventing the above-mentioned rotating support member from rotating upward and returning to its original position due to the torsional force of the elastic member. Effects of the invention

[0017] According to the door stopper of the present invention as described above, the following effects are achieved.

[0018] The elastic force (torsion force, twisting force) of the elastic member that rotates the rotational support member upward can be varied, allowing the rotational support member to be smoothly restored to its original position under various conditions.

[0019] In addition, the stopper can be securely fixed to the door without drilling by using the polarity arrangement of the magnetic material and the steel plate, etc. Brief explanation of the drawing

[0020] FIG. 1 is a perspective view of a door stopper according to an embodiment of the present invention, FIG. 2 is a unidirectional exploded perspective view of a door stopper according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of a door stopper according to an embodiment of the present invention, FIG. 4 is a cross-sectional view taken along line AA of FIG. 1, FIG. 5 is a perspective view of a door stopper according to an embodiment of the present invention in a rotated and lowered state. FIG. 6 is a cross-sectional view of the locking projection and the locking tab in the state of FIG. 5, FIG. 7 is a drawing related to a magnetic material according to an embodiment of the present invention. Specific details for implementing the invention

[0021] As shown in FIGS. 1 to 5, the door stopper of the present invention comprises a fixed member (10), a rotational support member (20), an elastic stop member (30), a first rotation axis (40), a second rotation axis (50), and an elastic member (60).

[0022] The other side of the above-mentioned fixed member (10) is connected to a door, such as a front door.

[0023] The above fixing member (10) can be connected to the door in various ways.

[0024] The fixed member (10) is formed such that both sides are bent so that the rotating support member (20) can be hinge-coupled to the inside thereof.

[0025] The above-mentioned rotating support member (20) is disposed on one side of the above-mentioned fixed member (10), one end is rotatably hinged to the above-mentioned fixed member (10), and the other end is bent.

[0026] The above-mentioned rotating support member (20) performs the same role and function as a conventional horseshoe leg.

[0027] A mounting hole (21) is formed inside one end of the above-mentioned rotating support member (20) and is open in both directions.

[0028] The above elastic stop member (30) is made of an elastic material such as rubber or silicone and is coupled to the other end of the above rotational support member (20).

[0029] The above elastic stop member (30) comes into contact with the ground when the rotational support member (20) rotates downward as shown in FIG. 5, in the state shown in FIG. 1, and at this time, the elastic stop member (30) is placed in a state where a part of it is compressed.

[0030] The first rotation shaft (40) is rotatably coupled to one side of one end of the rotation support member (20) to the fixed member (10) and is detachably coupled to one side of one end of the rotation support member (20).

[0031] The second rotation shaft (50) rotatably connects the other end of one end of the rotation support member (20) to the fixed member (10) and is detachably connected to the fixed member (10).

[0032] The rotational support member (20) is rotatably coupled to the fixed member (10) by the first rotational axis (40) and the second rotational axis (50) as described above.

[0033] The elastic member (60) is inserted and positioned in the mounting hole (21), with one end connected to the first rotation axis (40) and the other end connected to the second rotation axis (50).

[0034] The above elastic member (60) is made of a coil spring inserted into the mounting hole (21).

[0035] In the present invention, since the elastic member (60) is inserted into the interior of the mounting hole (21) and is not exposed to the outside, it is possible to prevent the elastic member (60) from being exposed to the outside and damaged.

[0036] The above elastic member (60) is elastically deformed when the rotational support member (20) rotates downward due to an external force, and when the external force is removed, it applies force so that the rotational support member (20) rotates upward due to an elastic restoring force.

[0037] When the rotational support member (20) rotates downward so that the elastic stop member (30) comes into contact with the ground, one end of the elastic member (60) rotates together with the rotational support member (20), and the other end of the elastic member (60) coupled to the second rotation axis (50) does not rotate, and twisting occurs in the elastic member (60).

[0038] The first rotation axis (40) and the second rotation axis (50) are positioned in alignment with the mounting hole (21).

[0039] The end of the first rotation shaft (40) inserted into the mounting hole (21) is coupled to one end of the elastic member (60), and the end of the second rotation shaft (50) inserted into the mounting hole (21) is coupled to the other end of the elastic member (60).

[0040] The first rotation shaft (40) is rotatably penetrated by the fixed member (10) and is fixedly coupled to one side of one end of the rotation support member (20), so that when the rotation support member (20) rotates, the first rotation shaft (40) rotates together with the rotation support member (20).

[0041] To this end, a polygonal first chamfer (41) is formed on the outer surface of the first rotating shaft (40), and a polygonal first fixing groove (22) into which the first chamfer (41) is inserted is formed on one side of the mounting hole (20).

[0042] When the first chamfered portion (41) is inserted into the first fixed groove (22), due to the polygonal fitting structure, the first rotation axis (40) and the rotation support member (20) rotate together when the rotation support member (20) rotates, and the first rotation axis (40) can rotate independently of the fixed member (10).

[0043] The second rotation shaft (50) is rotatably coupled to the other side of one end of the rotation support member (20) after passing through the fixed member (10), and when the rotation support member (20) is rotated while the second rotation shaft (50) is fixedly coupled to the fixed member (10), the second rotation shaft (50) does not rotate regardless of the rotation support member (20).

[0044] To this end, a polygonal second chamfer (51) is formed on the outer surface of the second rotating shaft (50), and a polygonal second fixing groove (12) into which the second chamfer (51) is inserted is formed in the fixing member (10).

[0045] When the second chamfering member (51) is inserted into the second fixing groove (12), the second rotation shaft (50) is fixedly coupled to the fixing member (10) due to the polygonal fitting structure, so that when the rotation support member (20) rotates, the second rotation shaft (50) does not rotate, and the rotation support member (20) can rotate independently of the second rotation shaft (50).

[0046] That is, when the rotational support member (20) rotates, the first rotational shaft (40) rotates together with the rotational support member (20), but the second rotational shaft (50) does not rotate.

[0047] One end of the elastic member (60), which is made of a coil spring, is coupled to the rotational support member (20) inside the mounting hole (21), and the other end is coupled to the second rotational shaft (50) which rotates independently of the rotational support member (20).

[0048] And, when the second chamfering part (51) is detached from the second fixing groove (12) by an external force, the second rotation shaft (50) can be rotated independently with respect to the fixing member (10) and the rotation support member (20).

[0049] After the second rotation axis (50) is detached from the fixed member (10) by an external force, the other end of the elastic member (60) rotates with respect to one end by the independent rotation of the second rotation axis (50).

[0050] At this time, since the other end of the elastic member (60) rotates relative to the first end, the torsional force (torsion force) of the elastic member (60) becomes variable.

[0051] That is, when the second rotation axis (50) rotates independently with respect to the fixed member (10) and the rotation support member (20) due to an external force, the other end of the elastic member (60) rotates relative to the first end, thereby allowing the torsional force of the elastic member (60) to be varied.

[0052] This allows the rotational support member (20) to be raised smoothly as it was initially by adjusting the torsional force of the elastic member (60) when the weight of the rotational support member (20) itself is varied, or when the weight is varied by attaching a different configuration to the rotational support member (20), or when the elastic force of the elastic member (60) is changed due to long-term use.

[0053] Looking at the operation process of the present invention configured as described above, first, a door damper is installed to apply force to rotate the door in the direction of closing.

[0054] In the free state, the other end of the rotational support member (20) is positioned upward due to the elastic restoring force of the elastic member (60).

[0055] At this time, the first rotation shaft (40) is rotatably mounted on the fixed member (10), and the second rotation shaft (50) is fixed to the fixed member (10).

[0056] When the other end of the rotational support member (20) rotates downward due to an external force while the door is open, the elastic member (60) is twisted and compressed because one end of the elastic member (60) is connected to the first rotational shaft (40) that rotates together with the rotational support member (20) and the other end is connected to the second rotational shaft (50) that does not rotate.

[0057] As the above-mentioned rotating support member (20) rotates downward, the above-mentioned elastic stop member (30) comes into contact with the ground, and because the door attempts to rotate in a closing direction by the above-mentioned door damper, the above-mentioned elastic stop member (30) in contact with the ground is pressed and compressed by that force.

[0058] As a result, the door stopper of the present invention is supported in contact with the ground, thereby preventing the door from closing.

[0059] At this time, a force to rotate upward by the elastic member (60) acts on the rotational support member (20), but the force pressing downward on the elastic stop member (30) by the door damper is greater, so the rotational support member (20) is not rotated upward and can be maintained as is.

[0060] And when the door is pushed slightly further in the direction of opening the door, the compressed elastic stop member (30) is restored and partially pushes the rotational support member (20) upward, and at the same time, the rotational support member (20) rotates upward due to the elastic restoring force of the elastic member (60) and is restored to its original position.

[0061] Since the operating relationship of such door stoppers is the same as that of conventional ones, a further detailed explanation thereof is omitted.

[0062] Meanwhile, in order to better maintain the lowered state of the rotational support member (20) when the rotational support member (20) is lowered, the present invention may further include a locking projection (24) and a locking tab (14).

[0063] The above-mentioned stopper (24) is formed to protrude from the outer surface of one end of the rotational support member (20).

[0064] The above-mentioned stopper (14) is formed to protrude from one side of the above-mentioned fixing member (10).

[0065] As illustrated in FIG. 6, when the rotational support member (20) rotates downward so that the elastic stop member (30) comes into contact with the ground, the catch projection (24) moves over the catch projection (14) and then catches on the catch projection (14), thereby preventing the rotational support member (20) from rotating upward and returning to its original position due to the twisting force of the elastic member (60).

[0066] And, when the rotational support member (20) rotates downward, the locking projection (24) passes over the locking projection (14) and then contacts one surface of the fixed member (10), thereby limiting the maximum rotation angle of the rotational support member (20), so that the rotational support member (20) can be prevented from rotating downward excessively more than necessary.

[0067] When the above-mentioned rotating support member (20) rotates downward so that the above-mentioned elastic stop member (30) comes into contact with the ground and is compressed, and the above-mentioned locking projection (24) is caught on the above-mentioned locking projection (14), if the door is pushed slightly further in the direction of opening, the compressed above-mentioned elastic stop member (30) is restored and partially pushed upward so that the above-mentioned rotating support member (20) passes over the above-mentioned locking projection (24) again, and at this time, the above-mentioned rotating support member (20) rotates upward by the elastic restoring force of the above-mentioned elastic member (60) and is restored to its original position.

[0069] Meanwhile, the other side of the above-mentioned fixed member (10) can be connected to the door in various ways.

[0070] In this embodiment, as shown in FIG. 7, a magnetic body (71) is disposed on the other side of the fixed member (10).

[0071] It is preferable that the above magnetic material (71) be made of a permanent magnet, a rubber magnet, etc.

[0072] At this time, the magnetic body (71) is arranged so that different polarities are alternately repeated in the up and down directions.

[0073] As described above, by arranging the magnetic body (71) such that different polarities alternately repeat in the vertical direction, the fixed magnet can better withstand the vertical force acting on the fixed member (10) when it is joined to the door.

[0074] As a result, even if the door stopper of the present invention is not attached to the door through screws or the like, that is, even if it is attached without drilling, it is possible to prevent the door stopper from moving up and down due to external force.

[0075] Additionally, a steel plate (72) is fixedly coupled to the other side of the fixed member (10), one side of the magnetic body (71) is coupled to the steel plate (72), and a silicone gel (73) may be applied to the other side of the magnetic body (71).

[0076] As described above, by adding the iron plate (72), the magnetic force generated from the magnetic body (71) can be further increased, and the magnetic body (71) can be more strongly fixed to the door through the silicone gel (73).

[0078] The door stopper of the present invention is not limited to the aforementioned embodiments and can be implemented with various modifications within the scope permitted by the technical concept of the present invention. Explanation of the symbols

[0079] 10 : Fixing member, 11 : Second fixing groove, 14 : Catching projection, 20: Rotating support member, 21: Mounting hole, 22: First fixing groove, 24: Locking projection, 30 : Elastic stop member, 40 : First rotation axis, 41 : First chamfered section, 50 : Second rotating shaft, 51 : Second chamfered part, 60 : Elastic member 71: Magnetic material, 72: Iron plate, 73: Silicone gel.

Claims

Claim 1 The device comprises: a fixed member coupled to a door; a rotating support member having one end rotatably hinge-coupled to the fixed member, the other end bent, and a mounting hole formed inside one end; an elastic stop member made of an elastic material coupled to the other end of the rotating support member and in contact with the ground when the rotating support member rotates; a first rotation shaft rotatably coupled to one side of one end of the rotating support member and detachably coupled to the rotating support member; a second rotation shaft rotatably coupled to the other side of one end of the rotating support member and detachably coupled to the fixed member; and an elastic member inserted and disposed in the mounting hole, having one end coupled to the first rotation shaft and the other end coupled to the second rotation shaft; wherein the first rotation shaft rotatably penetrates the fixed member and is fixedly coupled to one side of one end of the rotating support member, so as to rotate together with the rotating support member when the rotating support member rotates, and A door stopper characterized in that the second rotation axis penetrates the fixed member and is rotatably coupled to the other side of one end of the rotational support member, and when the rotational support member is rotated while fixedly coupled to the fixed member, the second rotation axis does not rotate independently of the rotational support member, and when the rotational support member is rotated downward so that the elastic stop member contacts the ground, one end of the elastic member rotates together with the rotational support member and the other end of the elastic member coupled to the second rotation axis does not rotate, thereby causing twisting in the elastic member, and after the second rotation axis is detached from the fixed member by an external force, the other end of the elastic member rotates relative to the one end by the independent rotation of the second rotation axis, thereby varying the torsional force of the elastic member. Claim 2 A door stopper according to claim 1, wherein the elastic member is formed of a coil spring inserted into the mounting hole, and the first rotation axis and the second rotation axis are arranged in alignment with the mounting hole. Claim 3 A door stopper according to claim 1, wherein a polygonal first chamfer is formed on the outer surface of the first rotating shaft, and a polygonal first fixing groove into which the first chamfer is inserted is formed on one side of the mounting hole, wherein when the first chamfer is inserted into the first fixing groove, the first rotating shaft and the rotating support member rotate together. Claim 4 A door stopper according to claim 1, wherein a second chamfered portion in the shape of a polygon is formed on the outer surface of the second rotating shaft, and a second fixing groove in the shape of a polygon into which the second chamfered portion is inserted is formed in the fixing member, wherein when the second chamfered portion is inserted into the second fixing groove, the second rotating shaft is fixedly coupled to the fixing member and does not rotate, and when the second chamfered portion is detached from the second fixing groove, the second rotating shaft can rotate independently with respect to the fixing member and the rotational support member. Claim 5 A door stopper according to claim 1, wherein the rotational support member is disposed on one side of the fixed member and a magnetic body is disposed on the other side of the fixed member, wherein the magnetic body is arranged such that different polarities are alternately repeated in the vertical direction. Claim 6 A door stopper according to claim 5, characterized in that a steel plate is fixedly coupled to the other side of the fixing member, one side of the magnetic body is coupled to the steel plate, and a silicone gel is coated on the other side of the magnetic body. Claim 7 A door stopper according to claim 1, wherein a locking projection is formed protruding from the outer surface of one end of the rotating support member and a locking tab is formed protruding from the fixed member, and when the rotating support member is rotated downward so that the elastic stop member contacts the ground, the locking projection moves over the locking tab and catches on the locking tab to prevent the rotating support member from rotating upward and returning to its original position due to the torsional force of the elastic member.

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