Door stopper device

Abstract

The device installed on the door side of the door stopper will be made smaller. [Solution] The door stopper device consists of a door stopper 10 that is attached to the floor or ceiling and a door-side member 20 that is attached to the door D of a hinged door and locks the door stopper 10. The door stopper 10 is equipped with an engaging piece 12 that can be raised and lowered in the vertical direction relative to the floor or ceiling, and the door-side member 20 is equipped with a locking member 30 that is movable in the vertical direction relative to the door D, an operating member 40 that is movable in the horizontal direction relative to the door D, an elastic member 50 that biases the operating member 40 in the horizontal direction, and an operating direction conversion mechanism 60 that converts the horizontal movement of the operating member 40 into the vertical movement of the locking member 30.

Description

Technical Field

[0001] This invention relates to a door stopper device that regulates further opening of a door for opening and closing a passage or a storage space at a predetermined opening position.

Background Art

[0002] As a door stopper device that regulates further opening of a door for opening and closing a passage or a storage space at a predetermined opening position, for example, there is one described in Patent Document 1.

[0003] The door stopper device described in Patent Document 1 includes a stopper main body provided on the floor side and a claw portion provided on the door side. When the door reaches a position of a predetermined opening degree, the stopper main body on the floor side is pulled up by the magnetic force of a magnet provided on the door side, and the claw portion and the stopper main body are engaged with each other, thereby locking the door so that it does not move to the open side and the closed side.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In a conventional door stopper device, the device (claw portion) provided on the door side is large, and securing an attachment space to the door becomes a problem. Also, when the device is large, there is a problem that the appearance of the door is poor. In particular, the door stopper device described in Patent Document 1 is configured by a longitudinal hook in which the claw portion extends along the vertical direction of the door, and there is a problem that the device is likely to be enlarged in the vertical direction. When the device is enlarged, a large space for attaching the device must be secured on the door side, and there is also a problem that the appearance of the door becomes poor.

[0006] Therefore, the objective of this invention is to miniaturize the device provided on the door side of the door stopper. [Means for solving the problem]

[0007] To solve the above problems, this invention employs a door stopper device comprising a door stopper attached to the floor or ceiling and a door-side member attached to the door of a hinged door to lock the door stopper, wherein the door stopper has an engaging piece that can be raised and lowered in the vertical direction relative to the floor or ceiling, and the door-side member has a locking member that can move vertically relative to the door, an operating member that can move laterally relative to the door, an elastic member that biases the operating member laterally toward the locking member, and an operating direction conversion mechanism that converts the lateral movement of the operating member into vertical movement of the locking member (Configuration 1).

[0008] In configuration 1, the movement direction changing mechanism may be configured to include a pin provided on one of the moving member or the locking member and a groove provided on the other, wherein the groove has an inclined groove that is inclined with respect to the lateral direction, and the locking member moves in the vertical direction as the pin moves within the inclined groove (configuration 2).

[0009] In configuration 1 or configuration 2, the engaging piece rises relative to the floor or ceiling by the magnetic force of a magnet provided on the door-side member, the operating member and the magnet are arranged in parallel in the front-back direction of the door, and the locking member can be configured to protrude from the operating member side to the magnet side in a cantilevered manner (configuration 3).

[0010] In configuration 2, the operating member and the locking member are arranged in parallel in the front-back direction of the door, and the groove is formed on the end face of the locking member on the operating member side (configuration 4). [Effects of the Invention]

[0011] According to this invention, the device installed on the door side of the door stopper can be miniaturized. [Brief explanation of the drawing]

[0012] [Figure 1] Perspective view of the door stopper device according to an embodiment of the present invention (unlocked state) [Figure 2] Perspective view of the same embodiment (locked state) [Figure 3] Plan view of FIG. 2 [Figure 4A] Side view of the door stopper device (locked state) [Figure 4B] Front view of FIG. 4A [Figure 4C] Cross-sectional view of FIG. 4A [Figure 5] Plan view of the door side member [Figure 6A] Cross-sectional view of FIG. 5 [Figure 6B] Front view of FIG. 6A [Figure 7] [[ID=3l]]Perspective view of the locking member and the operating member provided in the door side member of the door stopper device [Figure 8A] Rear view showing the engaged state of the locking member and the operating member provided in the door side member [Figure 8B] Rear view showing the engaged state of the locking member and the operating member provided in the door side member [Figure 9] Perspective view of the locking member provided in the door side member [Figure 10A] Plan view of the locking member provided in the door side member [Figure 10B] Left side view of FIG. 10A [Figure 10C] Front view of FIG. 10A [Figure 10D] Right side view of FIG. 10A [Figure 10E] Rear view of FIG. 10A [Figure 10F] Bottom view of FIG. 10A [Figure 11A] Perspective view of the operating member provided in the door side member [Figure 11B] Perspective view of FIG. 11A seen from the back side [Figure 12A] Plan view of the operating member provided in the door side member [Figure 12B] Rear view of FIG. 12A [Figure 12C] Left side view of FIG. 12A [Figure 12D] Front view (Figure 12A) [Figure 12E] Right side view of Figure 12A [Figure 12F] Bottom view of Figure 12A [Modes for carrying out the invention]

[0013] Embodiments of this invention will be described below with reference to the drawings. Figure 1 shows the use of a door stopper device S used for a so-called hinged door, where the door D is fixed to a wall or pillar with hinges. By pulling or pushing the doorknob attached to the door D, the door D rotates around the pivot axis of the hinge, allowing the passage to be opened and closed.

[0014] As shown in Figures 1 and 2, the door stopper device S of this embodiment comprises a door stopper portion 10 provided on the floor F side (hereinafter referred to as the floor-side member 10 in this embodiment) and a door-side member 20 provided on the door D side. Figure 1 shows the state in which the floor-side member 10 and the door-side member 20 are separated, and Figures 2 to 4C show the state in which the floor-side member 10 and the door-side member 20 are engaged.

[0015] The floor-side member 10 is fixed to the floor F slightly open to the back of the door D at a predetermined opening angle using adhesive tape or the like. The floor-side member 10 consists of a base portion 11 attached to the floor F, and an engaging piece 12 that is rotatably mounted to the base portion 11 via a horizontal pin (not shown), i.e., it is able to move up and down relative to the floor F. In this embodiment, the engaging piece 12 is made of a plate-shaped member made of a magnetic material such as iron. The plate-shaped member is rectangular, and the pin is provided along one edge of the rectangle. A locking hole 13 is provided near the swinging end, which is the opposite side from the side where the pin is provided.

[0016] The door-side member 20 is fixed to the lower end of the door D by screws (not shown) or the like. Reference numeral 27 in the figure indicates a hole through which a screw is screwed into the lower surface of the door D. The door-side member 20 consists of a casing 21 fixed to the door D, a locking member 30 that is movable vertically relative to the casing 21, i.e., the door D, and an operating member 40 that is movable horizontally relative to the casing 21, i.e., the door D. The door-side member 20 also includes an elastic member 50 that biases the operating member 40 horizontally, and an operating direction conversion mechanism 60 that converts the horizontal movement of the operating member 40 into vertical movement of the locking member 30. The door-side member 20 is also provided with a magnet (permanent magnet) 23.

[0017] In this embodiment, the operating member 40 moves in a direction parallel to the width direction of the door D (the direction perpendicular to the thickness direction of the door D), but it is also possible to move it at a slight angle to the width direction of the door D. However, it is desirable that the direction of movement be horizontal. Hereinafter, the width direction of the door D will be simply referred to as the width direction, and the thickness direction of the door D will be simply referred to as the thickness direction.

[0018] Figures 5 to 6b show the state in which the magnet 23, locking member 30, operating member 40, and elastic member 50 are housed within the casing 21. The operating direction changing mechanism 60 is provided to connect the locking member 30 and the operating member 40.

[0019] The locking member 30 is a integrally molded resin product. It consists of an L-shaped member 31 comprising a base portion 33 that rises vertically on one side in the thickness direction (arrow A side shown on the left in Figure 4C) and an overhang portion 37 that protrudes from the lower part of the base portion 33 on the other side in the thickness direction (arrow B side shown on the left in Figure 4C).

[0020] As shown in Figures 7 and 10A to 10F, the protruding portion 37 has a claw portion 32 that rises upward at the end opposite to the base portion 33, i.e., the other end in the thickness direction. There is also a valley portion 35 that is recessed downward between the claw portion 32 and the base portion 33. Reference numeral 36 in the figures indicates a guide recess 36 into which a protrusion (not shown) provided on the casing 21 side fits. The movement of the locking member 30 in the vertical direction is guided by the protrusion fitting into the guide recess 36.

[0021] As shown in Figure 9, the upper surface of the claw portion 32 on the other side in the thickness direction is an inclined surface 32a that becomes higher as it moves toward the one side in the thickness direction. Both sides of the inclined surface 32a in the width direction are smooth arcuate surfaces 32b, 32b. Furthermore, the upper surface of the claw portion 32 is also a smooth arcuate surface 32b. As shown in Figure 4C, when the door D moves toward one side in the width direction, the door D moves toward the side that closes the passage, and when the door D moves toward the other side in the width direction, the door D moves toward the side that opens the passage.

[0022] The operating member 40 is a integrally molded resin product. As shown in Figures 4C and 5, it is composed of a longitudinal member 41 that extends in the width direction, with an elastic member 50 attached to one end in the width direction (left side in Figure 5) and a locking member 30 connected to the other end in the width direction (right side in Figure 5).

[0023] As shown in Figures 11A to 11F, the longitudinal member 41 has a projection 41a on one end in the width direction (longitudinal direction) to which the elastic member 50 is locked. The projection 41a protrudes cylindrically from the end face 44 on one end in the width direction of the longitudinal member 41 toward its longitudinal direction. The elastic member 50 in this embodiment is made of a coil spring. As shown in Figure 6A, one end of the coil spring is fitted into a projection 25a provided on the casing 21. The other end of the coil spring is fitted into the projection 41a of the longitudinal member 41.

[0024] Furthermore, as shown in Figures 11A to 11F, the longitudinal member 41 has a protrusion 41a on one end in the width direction (longitudinal direction) to which the elastic member 50 is locked, and a pin 42 on the other end in the width direction (longitudinal direction) to which the locking member 30 is connected. The pin 42 protrudes cylindrically in a direction perpendicular to the width direction (longitudinal direction) from the side surface of the longitudinal member 41 slightly beyond the end face 44 on the width direction side. The pin 42 constitutes part of the operation direction changing mechanism 60, which will be described later.

[0025] These operating members 40 and elastic members 50 are housed within a housing portion 25 provided in the casing 21. The upper part of the base portion 33 of the locking member 30 is housed within the housing portion 25, while the lower part of the base portion 33 and the protruding portion 37 protrude below the housing portion 25. Here, the longitudinal member 41 has a projection 45 extending in the longitudinal direction on its upper surface. The projection 45 fits into a longitudinal opening located at the top of the housing portion 25, guiding the movement of the longitudinal member 41 in the width direction (longitudinal direction). The movement of the operating member 40 in the vertical direction is restricted by the casing 21. In this embodiment, the casing 21, along with the locking member 30 and the operating member 40, is made of molded resin, thus reducing the weight of the device.

[0026] As shown in Figures 7 to 8b, the movement direction changing mechanism 60 consists of a pin 42 provided on the operating member 40 and a groove 34 provided on the locking member 30. The groove 34 has a horizontal groove 34a parallel to the direction of movement of the operating member 40, i.e., the lateral direction, and an inclined groove 34b that is inclined with respect to the lateral direction. The horizontal groove 34a and the inclined groove 34b are connected and continuous by a bent portion 34c. The locking member 30 moves vertically as the pin 42 enters the inclined groove 34b from the horizontal groove 34a and moves within the inclined groove 34b.

[0027] The movement direction changing mechanism 60 is composed of a pin 42 provided on the laterally moving movement member 40 and an inclined groove 34b provided on the locking member 30, which allows for easy control of the vertical movement of the locking member 30. Furthermore, by employing a laterally moving movement member 40, the vertical size of the device can be reduced, resulting in a more compact (thin) design.

[0028] In this regard, conventional door stopper devices were large in the vertical direction, so when attaching them to a door D, it was necessary to cut away a part of the side or bottom surface of the door D to create space (a recess) for attaching the device. However, with this invention, the door-side member 20 is thin, which has the further advantage that it is not always necessary to cut away the door D to create a recess. For this reason, for example, as shown in Figure 4C, the door-side member 20 can be fixed to the flat bottom surface of the door D with screws or the like without cutting away the door D.

[0029] The operation of this door stopper device S in locking and unlocking the door D will be explained.

[0030] When door D is moved in the opening direction to a predetermined opening, the floor-side member 10 and door-side member 20 come closer together, causing the engaging piece 12 to rise from the floor F due to the magnetic force of the magnet 23. When door D is moved further in the opening direction, the claw portion 32 of the locking member 30 enters under the engaging piece 12, and then the claw portion 32 enters the locking hole 13, thereby locking the movement of door D.

[0031] At this time, the locking member 30 is biased upward by the action of the movement direction changing mechanism 60. This is because the operating member 40 is biased laterally by the biasing force of the elastic member 50, that is, in the upward slope direction of the inclined groove 34b (see arrow C in Figure 8A), and this biasing force lifts the locking member 30 upward (see arrow E in Figure 8A). Therefore, once the claw portion 32 enters the hole 13, the biasing force of the elastic member 50 causes the claw portion 32 that has entered the hole 13 to lift the engaging piece 12, making it difficult for the claw portion 32 to detach from the hole 13.

[0032] Here, the operating member 40 and the magnet 23 are arranged in parallel in the thickness direction (the front-back direction of the door D), and the locking member 30 protrudes from the operating member 40 side to the magnet 23 side in a cantilevered manner. In this respect as well, it has the effect of reducing the size of the device in the vertical direction. Furthermore, because the locking member 30 protrudes in a cantilevered manner, the claw portion 32 moves smoothly over the edge of the rotating end 12a of the engaging piece 12 and enters the hole 13.

[0033] Furthermore, the operating member 40 and the locking member 30 are arranged in parallel in the thickness direction, and the groove 34 is formed on the end face 38 of the locking member 30 on the side facing the operating member 40. Since the pin 42 and groove 34 that constitute the operating direction changing mechanism 60 are engaged in the thickness direction, this also has the effect of reducing the size of the device in the vertical direction.

[0034] Next, when a moderately strong force is applied to the locked door D in the closing direction, the claw portion 32 attempts to disengage from the hole 13, and the locking member 30 is pushed downward against the biasing force of the elastic member 50. As a result, the claw portion 32 disengages from the hole 13, and the lock on door D is released. After the claw portion 32 has disengaged from the hole 13, the locking member 30 is pushed up by the biasing force of the elastic member 50 and returns to its original height.

[0035] In the above embodiment, the operating direction conversion mechanism 60 is provided with a pin 42 on the operating member 40 and a groove 34 on the locking member 30. However, it is also conceivable to reverse this configuration, providing a groove on the operating member 40 and a pin on the locking member 30. Furthermore, the operating direction conversion mechanism 60 can also be configured with a configuration other than a pin and a groove, for example, a cam mechanism that converts the lateral movement of the operating member 40 into the vertical movement of the locking member 30.

[0036] In the above embodiment, the door stopper 10 was attached to the floor F, but a configuration in which the door stopper 10 is attached to the ceiling is also conceivable. Furthermore, in the above embodiment, a coil spring was used as the elastic member 50, but the elastic member 50 may be made of a spring other than a coil spring, for example, a leaf spring. [Explanation of symbols]

[0037] 10 Floor-side component (door stopper) 20 Door side component 23 Magnets 30 Locking member 38 End face 34 Groove 40 Operating member 42 pins 50 Elastic members 60. Operation direction changing mechanism Door D S Door Stopper Device

Claims

1. It consists of a door stopper (10) that is attached to the floor or ceiling, and a door-side member (20) that is attached to the door (D) of a hinged door and locks the door stopper (10). The door stopper device comprises a door stopper portion (10) having an engaging piece (12) that is movable up and down relative to the floor or ceiling, and a door side member (20) having a locking member (30) that is movable up and down relative to the door (D), an operating member (40) that is movable laterally relative to the door (D), an elastic member (50) that biases the operating member (40) in the later direction, and an operating direction conversion mechanism (60) that converts the later movement of the operating member (40) into the up and down movement of the locking member (30).

2. The door stopper device according to claim 1, wherein the movement direction changing mechanism (60) comprises a pin (42) provided on one of the operating member (40) or the locking member (30) and a groove (34) provided on the other, the groove (34) having an inclined groove (34b) that is inclined with respect to the lateral direction, and the locking member (30) moves in the vertical direction as the pin (42) moves within the inclined groove (34b).

3. The door stopper device according to claim 1 or 2, wherein the engaging piece (12) rises relative to the floor or ceiling by the magnetic force of a magnet (23) provided on the door-side member (20), the operating member (40) and the magnet (23) are arranged in parallel in the front-back direction of the door (D), and the locking member (30) protrudes in a cantilevered manner from the operating member (40) side to the magnet (23) side.

4. The door stopper device according to claim 2, wherein the operating member (40) and the locking member (30) are arranged in parallel in the front-back direction of the door (D), and the groove (34) is formed on the end face (38) of the locking member (30) on the side of the operating member (40).

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