JP5990007B2 - Finger pinching prevention device - Google Patents

Description

  The present invention relates to sliding sliding doors, sliding doors, sliding sliding doors, sliding doors, sliding doors such as raising and lowering windows, sliding doors, windows, etc. The present invention relates to a finger pinching prevention device that prevents pinching.

  Sliding sliding doors, sliding doors, sliding sliding doors, sliding doors, raising and lowering windows (hereinafter simply referred to as sliding doors) have recently increased in size, and the weight of the sliding doors has increased significantly due to the use of multiple layers of glass. The operating force is getting lighter. For this reason, there is a risk of causing a major accident by closing fingers, hands, especially the neck, head, etc., between a shoji and a frame such as a door frame when closed. There has been a need for an anti-pinch device. In view of this, there has been proposed a finger pinching prevention device that once stops the movement of the shoji when the shoji approaches the door frame. Recently, various pinch prevention devices have been proposed and introduced in the market, but there are various problems in terms of rigidity, size, usability, adjustment during installation, adjustment due to aging and wear, etc. A simple device that can eliminate the problem is desired.

Conventionally proposed devices that can prevent finger pinching when closing or opening the shoji are roughly divided into the following two methods.
(1) If the closing (opening) speed of the shoji is faster than the set speed, stop the movement of the shoji once near the closing (full opening), and then cancel the stop by automatic or manual operation. Close (open) again from the position and close (fully open). When the closing (opening) speed of the shoji is slower than the set speed, a device that can be closed (fully opened) as it is (see, for example, Patent Document 1).
(2) Regardless of the speed of closing (opening) the shoji, the movement of the shoji is temporarily stopped near the closing (full opening), the stop state is canceled automatically or manually, and after confirming safety, the position is re-started. A device that closes (opens) and closes (fully opens).

  For example, in the device for preventing finger pinching described in Patent Document 1 above, when the moving speed of the shoji is lower than a predetermined speed, the door closing prevention unit is retracted by the repulsive force of the magnet so that the shoji is closed. When the unit is closed at a speed exceeding the retreating speed of the unit, the door closing prevention unit is applied to the shoji to prevent finger pinching. In addition, various finger pinching prevention devices using magnets have been proposed, but in any case, the finger pinching prevention device does not operate when the speed of the shoji is slow, and when the shoji is closed beyond a certain speed, The prevention device is activated to stop the movement of the shoji. Therefore, in the conventional device, the repulsive force of the magnet and the moving speed of the shoji must be finely adjusted, so adjustment during installation at the site is difficult, and there is a possibility that it may cause a deviation when used over a long period. It wasn't.

JP-A-8-82157 (Claim 1, FIG. 1)

The present invention employs the configuration classified into the above (2) when the conventional configuration is roughly divided as described above, and at a predetermined position determined as a finger pinching prevention gap regardless of the moving speed of the shoji. It is an object of the present invention to provide a finger pinching prevention device that stops movement of a shoji and then automatically releases the stop state so that the shoji can be completely closed (fully opened).
Note that, as described above, the finger pinching prevention device is used not only when closing the shoji but also when used in a place where a finger or the like may be pinched with the frame when opening the shoji. It aims at the apparatus which can be used also in the case of.

  According to the present invention, in the finger pinching prevention device in which the movement of the shoji is temporarily stopped with a finger pinching prevention gap between the shoji and the frame when the shoji is opened and closed, either the shoji or the frame member And a stopper that can contact the kicker is provided on the other member, and the stopper is formed so as to be able to advance and retreat to a protruding position that contacts the kicker and a retracted position that does not contact the kicker. The stopper is connected to one end of the trigger so as to be moved to the retracted position, and the trigger is pivotally pivoted and urged to move the stopper to the retracted position, so that the kicker passes the position facing the stopper. Then, when the shoji moves in the opening or closing direction, the other end of the trigger can come into contact with the kicker to move the stopper to the protruding position. A finger pinching prevention device characterized in that when the shoji is extended to the position and the shoji returns to the closed or open position, the kicker abuts on the stopper to stop the shoji from moving, and then the stopper is retracted to the retracted position. Provided.

  Furthermore, according to the present invention, in the finger pinching prevention device, when the shoji is returned to the closed or open position, the trigger or kicker allows the kicker to return with the trigger held at the position where the stopper protrudes. The finger pinching prevention device is provided, wherein an escape is provided, and the stopper is provided with a holding device that temporarily holds the stopper so that it can be detached at the protruding position when the stopper moves to the protruding position.

  In addition, according to the present invention, in the finger pinching prevention device, the finger pinching prevention device is provided with an impact relaxation device for reducing an impact when the kicker and the stopper abut on the kicker side or the stopper side. Is done.

  The present invention is a finger pinching prevention apparatus configured as described above, wherein the movement of the shoji is temporarily stopped with a finger pinching prevention gap between the shoji and the frame when the shoji is opened and closed. A kicker is provided on one of the members, and a stopper capable of contacting the kicker is provided on the other member, and the stopper is formed so as to be movable back and forth between a protruding position where the kicker comes into contact with a kicker and a retracted position which does not come into contact with the kicker. The stopper is connected to one end of the trigger so as to move it to the protruding position and the retracted position, and the trigger is pivotably pivoted and urged to move the stopper to the retracted position. When the shoji is moved in the opening or closing direction after passing the opposite position, the other end of the trigger is moved to move the stopper to the protruding position. When the shoji is extended to a position where it can come into contact with the car and the shoji returns to the closed or open position, the kicker comes into contact with the stopper to stop moving the shoji, and then the stopper is retracted to the retracted position. When the shoji moves through the position facing the stopper, the stopper protrudes to the protruding position when the kicker hits the trigger. Since the kicker comes into contact with the stopper when the shoji returns to the closed or open position, the shoji can be temporarily stopped at that position. Thereby, a finger pinching prevention gap is formed between the frame and the shoji, and finger pinching is prevented. Further, as described above, the finger pinching prevention device of the present invention is mainly composed of a kicker, a stopper, and a trigger for moving the stopper back and forth, so that the number of parts is small and economical, and there are also adjustment points. There are few, and it does not go wrong by aging, and the operation is reliable. In addition, since the overall size can be reduced, it can be easily adapted to the design of the sash and shoji, and each member can be embedded in the upper frame of the frame or the upper arm of the shoji, or attached to the outside of the shoji. Or the shape of the mounting portion can be changed as appropriate, and various configurations can be accommodated.

  Further, if an impact mitigating device is provided on the kicker side or the stopper side, the impact when the shoji stops is mitigated, there is no possibility that the shoji will bounce back, and it is safer and easy to open and close.

Explanatory drawing of shoji. Explanatory drawing of the state before showing the Example of this invention and a kicker contact | abutting to a trigger. Explanatory drawing of the state which the kicker which passed the position facing a stopper is pushing up the trigger. Explanatory drawing of the state where the kicker has finished pushing up the trigger. Explanatory drawing of the state where the kicker has passed the trigger. Explanatory drawing when a kicker contacts the escape of the front-end | tip of a trigger when a shoji returns to the first state. Explanatory drawing of the state where the kicker moves by pushing the escape. Explanatory drawing of the state which the shoji moved further from the position shown in FIG. 7, and contacted the stopper. Explanatory drawing of the state where the kicker is pushing the stopper. Explanatory drawing of the state which the holding device of the stopper removed and the stopper, kicker, and positioning were locked. Explanatory drawing of the state which the stopper moved to the retracted position. Explanatory drawing of the Example which provided the escape in the kicker side. Explanatory drawing of the Example which provided the impact relaxation apparatus.

  The pinch prevention device of the present invention can be used in various places such as the above-mentioned shoji, that is, the sliding shoji, the one-side shoji shoji, the sliding sliding door, the one-side sliding door, the raising and lowering window, the sliding door, the window, etc. 1, the embodiment shown in FIG. 1 is provided between a frame 1 such as a door frame or a window frame and a shoji 2 incorporated so as to be openable and closable within the frame 1. An embodiment will be described in which the movement of the shoji is temporarily stopped at a position where there is a space (gap) 4 in which a finger or the like is not sandwiched between the frame frame 3 and the frame so that it can be completely closed after confirming safety.

  Referring to FIG. 2, the finger pinching prevention device of the present invention mainly includes a kicker 5 provided on one member of the shoji 2 or the frame 1 and a kicker 5 provided on the other member so that the kicker 5 can contact. It comprises a stopper 6 and a trigger 7 for moving the stopper 6. In the embodiment shown in the figure, the kicker 5 is provided on the shoji 2 side, the stopper 6 and the trigger 7 are provided on the base 8 attached to the frame body 1 side, and the lid 9 covering the base. The stopper 6 and the lower end of the trigger 7 are provided so as to protrude from the upper frame in the direction of the shoji.

  The stopper 6 is provided so as to be able to advance and retreat in a protruding position and a retracted position along a guide wall provided facing the base 8 and in a vertical direction in FIG. In the embodiment, one of the guide walls is constituted by a claw guide 11 having a wall surface 10 substantially perpendicular to the vertical direction, and the other wall is spaced from the wall surface 10 of the claw guide 11 so as to allow the stopper 6 to tilt. In the figure, it is constituted by a positioning 13 provided with an inclined surface 12 so as to gradually spread downward. The inclined surface may be provided on the claw guide side, and the wall on the positioning side may be formed substantially vertically, or the inclined surfaces may be formed on both wall surfaces.

  On the side surface of the stopper 6 facing the wall surface 10 of the claw guide 11, a locking step portion (saddle portion) 15 is formed via an inclined protrusion 14, and in the drawing, a concave portion 16 formed above the stopper 6 is horizontally long. The connecting shaft 18 provided in one piece 7a of the bell crank-shaped trigger 7 is slidably inserted in the long hole 17. A long hole may be formed in the trigger, and a connecting shaft may be provided on the stopper so that both are slidably connected.

  The central portion of the trigger 7 is pivotally attached to the base 8 by a trigger shaft 19 and is rotated clockwise in FIG. 2 by a trigger spring 20 so as to move the stopper 6 to a retracted position (retracted position). The other piece 7b is rotated to a position where it comes into contact with the side surface of the claw guide 11 and stopped. One end of the trigger spring 20 abuts on a step portion 21 formed on the inner surface of the trigger, and the other end is in contact with a spring stopper 22 provided on the base 8. The trigger spring 20 uses a torsion coil spring, but an appropriate coil spring or the like can also be used. Further, instead of the trigger spring, an appropriate spring may be provided at an appropriate position so as to move the stopper 6 directly upward so as to move the stopper 6 to the retracted position, and the stopper may be directly biased (not shown). .

An escape 23 is provided on the part 7 b side of the trigger 7. The escape 23 is formed in a substantially U-shaped cross-section so as to surround the front surface side, the back surface side and one side surface side of the tip of the trigger 7, and in the embodiment shown in FIG. 7, a roller 25 is pivotally supported at the tip, and the roller 25 projects downward from the base 8. Note that the roller 25 can be omitted and the escape can be directly projected (not shown). An escape spring 27 is provided around the escape shaft 24 of the escape 23. In FIG. 2, the escape 23 is biased so as to rotate the escape 23 counterclockwise. In the normal state, since the side surface of the escape 23 is in contact with the side surface of the trigger 7, the escape 23 is prevented from further turning and is aligned with the piece 7 b of the trigger 7 substantially in a straight line as shown in FIG. 2. The escape spring 27 is a torsion coil spring, one end of the spring 27 abuts on the step portion 28 of the trigger 7, and the other end is in contact with the back side of the side surface of the escape 23. A coil spring or the like can be used.

  A claw 32 is pivotally attached to a recess 31 formed between the opposing walls 29 and 30 formed in the claw guide 11 until the claw 32 abuts one wall 30 by a claw spring 34 provided around the pivot 33. 2 is biased to rotate counterclockwise in FIG. The claw spring 34 also uses a torsion coil spring, but other appropriate springs can be used. The claw 32 can be engaged with the locking step portion 15 of the stopper 6 when the stopper 6 moves to the protruding position, and when the stopper 6 moves back in this state, the claw 32 contacts the wall 29. It is driven to the contact position so that the engagement is not released, and the backward movement of the stopper 6 is prevented. In the embodiment shown in FIG. 2, a holding device that temporarily holds the stopper 6 in the protruding position is formed by the locking step portion 15 and the claw 32, but this locking step portion 15 is provided on the claw guide 11 side. May be provided on the stopper 6 side, or other appropriate holding device may be provided to temporarily hold the stopper.

  The positioning 13 is provided with a push pin 35 that urges the stopper 6 toward the claw guide 11. The push pin 35 is inserted into a hole 36 provided in the positioning 13 and is pushed by a push pin spring 37. The pressing force by the spring 37 can be adjusted by operating an adjusting screw 38 screwed into the hole 36. The stopper 6 can be slightly rotated clockwise in FIG. 2 about the connecting shaft 18 against the pressing force of the push pin 35. At this time, if the pressing force by the spring 37 is adjusted to reduce the pressing force, the stopper 6 can be rotated lightly, and if the pressing force is increased, the stopper 6 can be rotated more heavily. By this rotation, the locking step portion 15 of the stopper 6 is separated from the claw 32, and the stopper 6 released from the claw 32 can be retracted toward the retracted position.

  The effect | action at the time of opening and closing a shoji with the said structure is demonstrated. FIG. 2 shows an initial state in which the shoji 2 is in the closed position and the stopper 6 is retracted to the retracted position. From this state, when the shoji 2 is moved in the direction of the arrow 39 as shown by the chain line in order to open the shoji 2, the kicker 5 hits the escape 23 provided at the tip of the trigger 7 after passing under the stopper 6 and is shown in FIG. As described above, the trigger 7 is rotated counterclockwise to lower the stopper 6 toward the protruding position.

  When the shoji 2 is further moved and the trigger 7 is rotated, the stopper 6 is further lowered, the inclined protrusion 14 exceeds the tip of the claw 32, and the tip of the claw 32 corresponds to the locking step 15 (see FIG. 4). ). When the shoji 2 moves to a position where the kicker 5 is separated from the escape 23, the trigger 7 is rotated clockwise by the action of the trigger spring 20, and the tip of the claw 32 is engaged with the locking step 15, Since the rotation of the claw 32 is stopped in contact with the wall 29, the stopper 6 is restrained to the protruding position. Thereafter, the shoji 2 can be completely opened by moving the shoji 2 toward the open position (FIG. 5).

  From the state shown in FIG. 5, when it is attempted to close the shoji 2 by moving in the direction of the arrow 40, the kicker 5 hits the escape 23. Since the escape 23 can rotate in the clockwise direction, only the escape 23 rotates without rotating the trigger 7, and the kicker 5 moves through the escape 23 in the closing direction (see FIGS. 6 and 7). ). At this time, since the stopper 6 remains held at the protruding position, the kicker 5 comes into contact with the stopper 6 as shown in FIG. Since the shoji 2 continues to move, the stopper 6 is pushed by the kicker 5 and rotates clockwise while pushing the push pin 35 against the push pin spring 37 (see FIG. 9). Leaves the nail 32. When the shoji is further closed, the kicker 5, the stopper 6 and the positioning 13 are engaged with each other, and the shoji 2 stops moving (FIG. 10). Thereby, the gap | interval 4 is formed between the door tip of the shoji 2, and the frame 1, and finger pinching can be prevented. At this time, since the claw 32 separated from the stopper 6 is urged counterclockwise by the claw spring 34, the claw 32 is rotated to a position where it hits the wall 30 and between the inclined projections 14 as shown in FIG. There is no possibility that the stoppers 6 face each other at an interval and prevent the stopper 6 from moving backward.

  When the force to close the shoji 2 is loosened or the closing force disappears, the locked state is released, the trigger 7 is rotated clockwise by the action of the trigger spring 20, and the stopper 6 is pulled upward. Therefore, even if the shoji 2 is further moved in the closing direction, the kicker 5 does not hit the stopper 6, so that the shoji can be completely closed (FIG. 11).

  When closing the above shoji, if it is paused before closing to prevent pinching, the shoji once stopped stops with the kicker and stopper colliding, and as a result, the shoji and the frame collide. It is thought that the power beyond the initial power to move the shoji first is working in the stop state. Therefore, the shoji once stopped by the finger pinching prevention device cannot be released unless the force exceeding the initial power is applied at least. Since the finger pinching prevention device of the present invention is an operation method in which the stopper is moved forward and backward in a direction substantially perpendicular to the moving direction of the shoji to stop and release, the shoji and the frame are pressed against each other in a collision state and stopped. If the force is T and the coefficient of friction is ρ, the force required to release the stop is T × ρ, and if there is more force, the stop can be released. Although ρ differs depending on the material, since ρ is approximately 0.3, the stop can be released with a force of about 30% of T, and after the stop, it can be easily released automatically.

  In the above embodiment, the escape 23 is provided on the trigger 7 side, but an escape may be provided on the kicker 5 side. FIG. 12 shows an embodiment in which an escape 41 is provided on the kicker 5 side, and the tip of the piece 7b of the trigger 7 is formed in a substantially rod-like body protruding from the base toward the shoji. The kicker 5 is formed with a substantially L-shaped concave portion 42 as viewed from the front, and an escape 41 is rotatably accommodated in the concave portion 42 and supported by a shaft 43. In this case, the escape 41 is urged by the escape spring 44 so as to rotate counterclockwise in FIG. 12, and the tip projects in the direction of the trigger 7 in a state where it touches the blocking wall 45 provided in the recess 42 of the kicker 5. Is held so. The escape 41 does not rotate when the shoji 2 moves in the opening direction, but the tip hits the trigger 7 and turns the trigger 7 counterclockwise, so that the shoji 2 moves from the opening position to the closing direction. The trigger 7 is pushed by the tip of the trigger 7 and rotated clockwise, and the trigger 7 is held at the rotated position. With this configuration, it can function in substantially the same manner as in the above embodiment.

  In the above embodiment, when the kicker 5 collides with the stopper 6, if the shoji 2 is closed vigorously, the shoji 2 rebounds, and the rebound shoji may hit the operator, nearby children, infants, etc. There is. In order to prevent such a situation from occurring, an impact mitigating device that can mitigate the impact at the time of collision may be provided at an appropriate position. If an impact mitigation device is provided, the impact when the kicker 5 and the stopper 6 collide is alleviated regardless of whether the closing speed of the shoji is fast, slow, or shockingly closed. Thus, the locking state of the positioning 13 is surely configured, and the movement of the shoji 2 can be stopped in a stable state. FIG. 13 shows an embodiment in which an impact mitigation device 46 is provided on the kicker 6 side. In the embodiment shown in FIG. 13, the impact mitigation device uses a linear damper mechanism having a kicker 5 that is movable in the longitudinal direction and having a one-way clutch 47, a spiral rod 48, a linear damper 49, and a compression coil spring 50. Is abutted against the stopper 6 while the shock is buffered, the kicker 5 moves relatively to the right in the figure, and then moves relatively left by the compression coil spring to return to the initial position. In addition, an air damper, a hydraulic damper, a rotary damper, or the like can be used.

  In the above embodiment, the kicker is provided on the shoji side and the stopper and the like are provided on the frame body side. However, the kicker can be provided on the frame body side and the stopper and the like can be provided on the shoji side. In addition, a finger pinching prevention gap was formed between the door edge of the shoji and the frame when closing the shoji, but a finger pinning prevention gap was formed between the door bottom of the shoji and the frame when opening the shoji. You may make it do.

1 Frame 2 Shoji 4 Gap 5 Kicker 6 Stopper 7 Trigger 8 Base 11 Claw Guide 13 Positioning 15 Locking Step 19 Trigger Shaft 20 Trigger Spring 23 Escape 27 Escape Spring 32 Claw 34 Claw Spring 35 Push Pin 37 Push Pin Spring 41 Escape 46 Impact mitigation device

Claims (6)

In the finger pinching prevention device that temporarily stops the movement of the shoji with a finger pinching prevention gap between the shoji and the frame when opening and closing the shoji, the kicker provided on either the shoji or the frame and the other comprising a base provided on the member, the said base, and a stopper forming the locking stepped portion on the side surface is provided to be retractable to the retracted position where it does not contact the protruding position and kicker abutting the kicker, the base a trigger which is biased in a direction to move the stopper to the retracted position together with the swingably pivotally connected to move the stopper pivotally mounted at one end to the projecting position and the retracted position, the kicker is the when moving in the sliding door is opened or closed direction through the position facing the stopper abuts on the kicker to move the projection position of the stopper by rotating the trigger And pieces of the trigger extending in capacity position, the pawl is pivotally mounted on the base so as to engage the engaging step portion when the stopper is in the extended position so as to bias the stopper pawl direction A push pin biased by a biasing spring is provided, and when the shoji is returned to the closed or open position, it is pushed by the kicker , the stopper rotates, and the locking step part moves away from the claw to stop the shoji from moving. Thereafter, the stopper is retracted to the retracted position by the trigger, and the finger pinching prevention device is characterized in that   For the trigger or kicker, when the shoji moves to the open or closed position, the trigger is rotated to move the stopper to the protruding position by the kicker, and when returning to the closed or open position, the trigger is held in the rotated position. The finger pinching prevention device according to claim 1, wherein an escape is provided so as to allow the kicker to return while being kept. The stopper moves along a guide wall provided on the base, and one guide wall is constituted by a claw guide having a wall surface perpendicular to the vertical direction, and the other wall wall is inclined so that the distance from the claw guide gradually increases. The finger pinching prevention device according to claim 1 or 2, wherein the finger pinching prevention device is configured by positioning with a surface . The fingernail prevention device according to claim 3, wherein the nail is pivotally attached to a recess formed between opposing walls formed in the nail guide and is urged so as to be able to rotate in a direction in contact with one wall .   The finger pinching prevention device according to any one of claims 1 to 4, wherein an impact relaxation device is provided on the kicker side or the stopper side to reduce an impact when the kicker and the stopper come into contact with each other.   A shoji equipped with the finger pinching prevention device according to any one of claims 1 to 5.

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