JP7403439B2 - Safety devices for switchgear - Google Patents

Description

The present disclosure relates to safety devices for switchgear.

2. Description of the Related Art Conventionally, a safety device for an opening/closing device is known that can prevent fingers from being caught when a door body is closed faster than a predetermined speed (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 2009-57737

In safety devices for opening/closing devices, there is a need to further improve the reliability of the operation of the finger pinch prevention mechanism.

An object of the present disclosure is to provide a safety device for a switchgear in which the reliability of operation of a finger pinch prevention mechanism is improved.

The present disclosure is a safety device for an opening/closing device that can open and close an opening by opening and closing movement of a door body, the arm member being configured to be rotatable around a rotating shaft, an arm member having a moving part movable in a first moving direction in which the door body moves and also movable in a cross direction intersecting the first moving direction of the door body; a stopper part with which the moving part collides so as to temporarily stop the opening/closing operation of the door body when the door body is moved at a predetermined speed or more; When the door body is moved at a speed slower than a predetermined speed, the moving part is guided in the intersecting direction after colliding with a guiding part that guides the moving part in the cross direction, and the rotating shaft is arranged below a collision part with which the moving part collides in the stopper part when viewed in the direction of the rotating shaft. , relating to safety devices for switchgear.

FIG. 2 is a front view of the opening/closing device according to the embodiment when viewed from the outside of the room. FIG. 2 is a perspective view of the safety device according to the embodiment when viewed from the outside of the room. FIG. 3 is a perspective view of the operating arm of the safety device as seen from the indoor side. FIG. 3 is a perspective view showing a state in which the operating arm of the safety device is attached to the inner sash. FIG. 3 is a perspective view showing a state in which the door end stile and the upper stile are fastened and fixed together with a reinforcing member using screws. It is a figure which shows the state in which the operation arm part of a safety device is attached to an inner shoji after the inner shoji is arranged in a frame. FIG. 2 is a diagram of the safety device of the embodiment viewed from the outside of the room. FIG. 3 is a view of the safety device of the embodiment viewed from above. FIG. 2 is a perspective view of the safety device according to the embodiment as viewed diagonally from above. In the safety device of the embodiment, it is a diagram illustrating an operation in which the tip of the arm plate collides with the stopper part and the inner shoji temporarily stops. In the safety device of the embodiment, it is a diagram illustrating an operation in which the operating arm section returns along a return movement path.

Hereinafter, one embodiment of the present disclosure will be described with reference to the drawings. In addition, in this specification, the "view direction" means the surface direction of the glass in the shoji housed in the opening 20a of the frame 20 arranged in the building, and the "projection direction" means the surface direction of the glass means the thickness direction (that is, the depth direction). In the drawings, the outdoor side is indicated as "OUTSIDE," and the indoor side is indicated as "INSIDE."

The opening/closing device 1 of this embodiment is a so-called double-sliding window, and as shown in FIG. and a safety device 10. The opening/closing device 1 can open and close the opening 20a by opening and closing the inner shoji 30 and the outer shoji 40 in the left-right direction X. The safety device 10 is for the opening/closing device 1.

The frame body 20 is framed in a rectangular shape by an upper frame 21, a lower frame 22, and left and right vertical frames 23, 24.

The upper frame 21 is formed in an elongated shape and extends in the viewing direction at the upper part of the frame body 20. The upper frame 21 is formed to be open downward. The lower frame 22 is formed in an elongated shape and extends in the viewing direction at the lower part of the frame body 20. The lower frame 22 is formed to be open upward.

The left and right vertical frames 23 and 24 extend in the vertical direction at both ends of the upper frame 21 and the lower frame 22 in the facing direction. The left and right vertical frames 23 and 24 are formed in an elongated shape and constitute the side portions of the frame body 20.

Both the inner shoji 30 and the outer shoji 40 are sliding doors, and by sliding them in the facing direction, the opening 20a of the frame 20 is opened or closed, forming a so-called double-sliding window.

As shown in FIG. 1, the inner shoji 30 has a frame body 35 that is framed in a rectangular shape by an upper stile 31, a lower stile 32, and left and right vertical stile 33 and door stile 34, as shown in FIG. and a glass 36 fitted and fixed within the frame 35.

As shown in FIG. 1, the outer shoji 40 has a frame body 45 that is framed in a rectangular shape by an upper stile 41, a lower stile 42, and left and right vertical stile frames 43 and 44. and a glass 46 fitted and fixed within the frame 45.

The safety device 10 will be explained. In this embodiment, in the opening/closing device 1, the left-right direction in FIG. 1 is referred to as the left-right direction X. The left-right direction X of the opening/closing device 1 is also the lateral direction of the inner shoji 30. One side (the left side in FIG. 1) of the opening/closing device 1 in the left-right direction X is referred to as the X1 side, and the other side (the right side in FIG. 1) in the left-right direction X is referred to as the X2 side. Further, the vertical direction is referred to as the vertical direction Z. Further, the direction in which the inner shoji 30 is closed on the X2 side (the right side in FIG. 1) of the frame 20 (the direction in which it is moved from the X1 side to the X2 side) is referred to as a first moving direction D1, and the inner shoji 30 is closed on the The direction of opening on the X2 side (right side in FIG. 1) (the direction of movement from the X2 side to the X1 side) is referred to as a second moving direction D2.

The safety device 10 includes a finger pinch prevention mechanism. As shown in FIGS. 1 and 2, the safety device 10 includes a safety device main body 60 and an operating arm portion 70 (door side portion). The safety device main body 60 is fixed to the end of the upper frame 21 of the frame body 20 on the X2 side in the left-right direction X, and is thereby fixed to the upper part of the opening 20a on the X2 side in the left-right direction X. The operating arm part 70 is fixed to the X2 side of the upper stile 31 of the inner shoji 30 in the left-right direction X, and is thereby fixed to the upper part of the inner shoji 30 on the X2 side in the left-right direction X. The operating arm section 70 is removably fixed to the inner shoji 30 in a state where the inner shoji 30 is attached to the opening/closing device 1 .

As shown in FIGS. 3 and 4, the operating arm section 70 is fixed to the reinforcing member 37 fixed to the upper side of the X2 side of the inner shoji 30 in the left-right direction X by a screw 701 (first fastening member). Thus, it is fixed to the inner shoji 30. The upper end of the door frame 34 and the end of the upper stile 31 on the X2 side in the left-right direction X are connected. The reinforcing member 37 reinforces the connection between the door stile 34 (vertical stile) and the upper stile 31 (horizontal stile) of the inner shoji 30.

As shown in FIGS. 3 and 4, the door frame 34 includes a left-right inner vertical panel 341, a left-right outer vertical panel 342, an outdoor vertical panel 343, and an indoor vertical panel 344. The left-right inner vertical face plate 341 is formed on the X1 side of the door frame 34 in the left-right direction X, parallel to the viewing direction and the up-down direction Z, and extends in the up-down direction Z. The left-right direction outer vertical face plate 342 is formed on the X2 side of the left-right direction X of the door frame 34 in parallel to the viewing direction and the up-down direction Z, and extends in the up-down direction Z. The outdoor side vertical face plate 343 is formed parallel to the left-right direction X and the up-down direction Z on the outdoor side, and extends in the up-down direction Z. The indoor side vertical face plate 344 is formed parallel to the left-right direction X and the up-down direction Z on the indoor side, and extends in the up-down direction Z.

A notch 342a recessed downward from above is formed at the upper end of the left-right outer vertical face plate 342 of the door frame 34. The notch 342a is provided in the door frame 34 so that the reinforcing member 37 and the operating arm 70 do not get in the way of moving in the left-right direction X when the reinforcing member 37 and the operating arm 70 are attached to the door frame 34. It is recessed downward from the upper end of the left-right direction outer vertical face plate 342 of.

As shown in FIG. 5, in the outdoor side portion of the connecting portion between the door end stile 34 and the upper stile 31, the reinforcing member 37, the left-right inner vertical face plate 341 of the door end stile 34, and the left-right direction X of the upper stile 31 are The screw holes 311 formed in the end surface of the end on the X2 side are fixed together by being tightened with screws 702 (second fastening members). In this way, the reinforcing member 37, the door end stile 34, and the upper stile 31 are fastened and fixed together with the screws 702 on the outdoor side at the connection portion between the door end stile 34 and the upper stile 31. Further, the reinforcing member 37 is fixed to the door edge stile 34 and the upper stile 31 by screws 702 at the upper part of the end of the inner shoji 30 on the X2 side in the left-right direction X. 34 and the upper stile 31 is reinforced.

In the indoor side part of the connection part between the door frame 34 and the upper frame 31, the inner vertical face plate 341 in the left-right direction of the door frame 34 and the end surface of the end of the upper frame 31 on the X2 side in the left-right direction X are formed. The screw holes 312 are tightened together with screws 704 and fixed. In this way, the door end stile 34 and the upper stile 31 are fastened and fixed together with the screws 704 on the indoor side at the connection portion between the door end stile 34 and the upper stile 31.

As shown in FIG. 6, the operating arm section 70 is fixed to the reinforcing member 37 fixed to the end of the inner shoji 30 with screws 701 after the inner shoji 30 is built into the frame 20. The operating arm section 70 has an L-shaped member 75, as shown in FIG. The L-shaped member 75 is connected to an end on the X2 side in the left-right direction X of a lower surface plate 711 (described later) of the operation-side base member 71 of the operation arm section 70. The L-shaped member 75 is formed in an L-shape that opens toward the X1 side and the lower side in the left-right direction X of the inner shoji 30.

As shown in FIG. 4, the L-shaped member 75 has a horizontal plate 751 and a vertical plate 752. The horizontal plate 751 is formed in a plate shape parallel to the left-right direction X and the viewing direction. The vertical plate 752 extends downward from the end of the horizontal plate 751 on the X2 side in the left-right direction X, and is formed in a plate shape parallel to the viewing direction and the vertical direction Z.

A vertical through hole portion 751a penetrating in the vertical direction Z is formed in the horizontal plate 751. The horizontal plate 751 has screws 703 extending in the vertical direction Z inserted into the vertical through-holes 751a, so that the horizontal plate 751 and the operating side base member 71 (described later) of the operating arm section 70 are connected in the horizontal direction by the screws 703. The end of X on the X2 side is fixed.

A left-right through hole portion 752a (through hole portion) passing through in the left-right direction X is formed in the vertical plate 752. A screw 701 for fixing the operating arm section 70 and the inner shoji 30 can be inserted into the left-right direction through-hole section 752a.

The screw 701 is formed to extend in the left-right direction X. After the operating arm portion 70 is placed on the inner shoji 30, the screw 701 is moved from the outside of the end of the inner shoji 30 on the X2 side in the left-right direction X to the inner shoji 30 side. It can be inserted into the left-right through hole 752a from the outside of the end on the X2 side in the left-right direction X of the shoji 30. By inserting the screw 701 into the left-right through hole 752a of the vertical plate 752, the screw 701 connects the vertical plate 752 of the L-shaped member 75, the reinforcing member 37, and the left-right inner vertical plate 341 of the door frame 34. They are tightened together and fixed. Thereby, the L-shaped member 75, the reinforcing member 37, and the door frame 34 are fastened together with the screws 701 and fixed.

As shown in FIG. 6, the above operation arm section 70 can be attached to the inner shoji 30 after the inner shoji 30 is built into the frame 20 in a so-called Kendon style. When incorporating the inner shoji 30 into the frame 20 using the Kendon method, the upper end of the inner shoji 30 is tilted so as to be inserted from below the upper frame 21 of the frame 20, and the inner shoji 30 is gradually inserted. After lifting the inner shoji 30 upward while standing it up, the inner shoji 30 is lowered downward.

After the inner shoji 30 is built into the frame 20, the operating arm part 70 is moved from outside the end of the inner shoji 30 on the X2 side in the left-right direction X to the upper end of the inner shoji 30. 30 on the upper side of the X2 side in the left-right direction X. Then, the L-shaped member 75 fixed to the operation arm part 70 is attached to the reinforcing member 37 fixed to the upper side of the inner shoji 30 on the X2 side in the left-right direction X. The screw 701 is moved from the outside to the inside of the part and fixed with the screw 701. Thereby, the operating arm part 70 can be easily fixed to the inner shoji 30 by the screw 701 moved from the outside to the inside in the left-right direction X.

In this manner, the operating arm section 70 can be attached to the inner shoji 30 after the inner shoji 30 is placed within the frame 20, so the operating arm section 70 can be easily attached to the inner shoji 30. Further, during maintenance, the operating arm portion 70 can be easily replaced without removing the inner shoji 30 from the frame 20.

As shown in FIG. 1, the operating arm portion 70 is introduced into the safety device main body 60 when the inner shovel 30 is moved in the first moving direction D1. When the inner shoji 30 is closed at a speed faster than a predetermined speed, since the safety device 10 includes a finger pinch prevention mechanism, it is possible to prevent the inner shoji 30 from colliding with the vertical frame 24 of the frame body 20.

As shown in FIGS. 7 to 9, the safety device main body 60 includes a base member 61, an inclined guide portion 62, a path extension plate 63, and a stopper portion 64. The safety device main body 60 also includes a first movement path K1 (upstream path), a fall guiding communication section 65 (guiding section), as a movement path along which the tip end 721 of the arm plate 72 of the operating arm section 70 moves. It has a second movement path K2 (downstream path) and a return movement path K3 (return path).

The base member 61 has a top plate 611, a first side plate 612, and a second side plate 613. The upper surface plate 611 is formed to have a width in the perspective direction, extends in the left-right direction X, and is fixed to the upper frame 21. The first side plate 612 extends downward from the end of the top plate 611 on the indoor side in the forward direction. The second side plate 613 extends downward from the end of the top plate 611 on the outdoor side in the forward direction.

The first moving path K1 is a path that passes through the upper surface side of the inclined guide portion 62 and the upper surface side of the path extension plate 63 to the stopper portion 64. The first movement path K1 is a path along which the tip 721 of the arm plate 72 can be moved in the first movement direction D1 when the tip 721 (moving part) of the arm plate 72 moves toward the stopper part 64. be.

The second movement path K2 (downstream path) is moved in the left-right direction of the first movement path K1 via a fall guiding communication part 65 formed at the lower part of the end on the X2 side in the left-right direction X of the first movement path K1. It is formed in communication with the lower end of the X2 side of the first moving path K1, and extends from the lower end of the first moving path K1 on the X2 side of the left-right direction X to the X2 side of the left-right direction X. The second movement path K2 is a path along which the distal end portion 721 of the arm plate 72 of the operating arm portion 70 guided by the drop guiding communication portion 65 can be moved in the first movement direction D1.

The return movement path K3 is formed to extend from the end of the second movement path K2 opposite to the end on the first movement direction D1 side toward the first movement path K1 side, and merges with the upstream side of the first movement path K1. This is the route to The return movement path K3 extends horizontally from the X2 side to the X1 side in the left-right direction This is a route that merges with the upstream side.

The inclined guide portion 62 is formed in a plate shape that is inclined from the lower side to the upper side as it goes from the X1 side to the X2 side in the left-right direction X. The base end of the inclined guide part 62 on the X2 side in the left-right direction X is connected to the end part of the path extension plate 63 on the X1 side in the left-right direction X so as to be rotatable about a rotation axis J3 extending in the forward direction. . The inclined guide portion 62 is rotatable about the rotation axis J3, with the downward rotation angle being regulated at a predetermined angle.

The inclined guide section 62 is disposed at a portion where the first movement path K1 and the return movement path K3 join, and when the distal end side pin 73 of the operating arm section 70 moves along the first movement path K1, the slope guide section 62 moves along the return movement path K3. When the tip side pin 73 moves from the return movement path K3 to the first movement path K1, the tip side pin 73 pushes up from below to move the rotation axis J3 from the closed position. The distal end pin 73 rotates upward in the center to open a path for the tip side pin 73 to move from the return movement path K3 to the first movement path K1. As a result, the inclined guide section 62 functions as an opening/closing section that opens and closes the return movement path K3 by opening and closing the X1 side of the return movement path K3 in the left-right direction X when the arm plate 72 returns on the return movement path K3. do.

The path extension plate 63 is formed into a flat plate shape extending from the end of the inclined guide portion 62 on the X2 side in the left-right direction X toward the X2 side. The end of the path extension plate 63 on the outdoor side in the forward direction is located at the same position as the end of the inclined guide part 62 on the outdoor side in the forward direction.

The stopper portion 64 is arranged at the end of the first moving path K1 on the X2 side in the left-right direction X. When the inner shoji 30 is moved at a speed higher than a predetermined speed, the stopper part 64 collides with the tip end 721 of the arm plate 72 so as to temporarily stop the opening/closing operation of the inner shoji 30. The stopper portion 64 includes a plate-shaped collision plate 641 extending in the vertical direction Z and the viewing direction, and a regulating portion 642.

The collision plate 641 is fixed to the base member 61 below the top plate 611 of the base member 61 . The collision plate 641 is formed into a plate shape extending in the forward direction. The width of the collision plate 641 in the forward direction is longer than the width of the inclined guide portion 62 in the forward direction, and extends further toward the outdoor side than the inclined guide portion 62.

The collision plate 641 has a collision surface facing toward the X1 side in the left-right direction X. The portion of the collision plate 641 that the tip portion 721 of the arm plate 72 collides with constitutes a collision portion 641a. When the tip 721 of the arm plate 72 collides with the collision portion 641a of the stopper portion 64, the load applied when the tip 721 of the arm plate 72 collides with the collision portion 641a of the stopper portion 64 acts on the collision portion 641a. It is a part.

The regulating portion 642 is provided at the upper part of the collision plate 641 on the near side. In this embodiment, the regulating portion 642 is configured by the lower surface of the upper surface plate 611 of the base member 61. The restricting portion 642 restricts the distal end portion 721 of the arm plate 72 from moving upward.

A fall guiding communication part 65 (guiding part) that communicates with the second moving path K2 is formed at the front lower part of the collision plate 641 on the X1 side in the left-right direction X. The fall guiding communication portion 65 is formed by a gap between the lower end of the collision plate 641 and the end of the path extension plate 63 on the X2 side in the left-right direction.

When the inner shoji 30 is moved at a predetermined speed or higher, the fall guiding communication part 65 is configured to move the arm plate 72 after the tip 721 of the arm plate 72 collides with the stopper part 64 and temporarily stops the opening/closing operation of the inner shoji 30. When the inner shoji 30 is moved at a speed slower than a predetermined speed, the arm is moved in front of the stopper part 64 without stopping the opening/closing operation of the inner shoji 30. The tip 721 of the plate 72 is guided downward (in the cross direction).

The length L in the left-right direction X of the gap in the fall guiding communication portion 65 is a length that allows the tip side pin 73 to pass through, and the inner shoji 30 moves in the first moving direction D1 at a speed higher than a predetermined speed. When the tip end pin 73 is introduced into the safety device main body 60, the tip end 721 of the arm plate 72 collides with the collision plate 641 before the tip end pin 73 falls from the gap in the fall guiding communication part 65. Can be set to any length possible.

As shown in FIG. 1, the operating arm section 70 is arranged on the X2 side of the upper stile 31 of the inner shoji 30 in the left-right direction X. The operating arm portion 70 is introduced into the safety device main body 60 when the inner shoji 30 is moved to the closing side on the X2 side in the left-right direction X. As shown in FIGS. 7 to 9, the operating arm portion 70 includes an operating side base member 71, an arm plate 72 (arm member), and a distal end pin 73 (guide portion).

The operating side base member 71 is formed to extend in the left-right direction X, as shown in FIGS. 7 to 9. The operating side base member 71 is disposed at a position shifted toward the outdoor side from the inclined guide part 62, and when the inner shoji 30 is moved in the left-right direction Move in direction X.

The operation side base member 71 has a lower surface plate 711, a first side plate 712, and a second side plate 713. The lower surface plate 711 is formed to extend in the left-right direction X and have a width in the perspective direction. The lower surface plate 711 is formed to extend in the left-right direction X and have a width in the perspective direction.

The first side plate 712 rises upward from the end of the lower plate 711 on the indoor side in the forward direction. The second side plate 713 rises upward from the end of the lower plate 711 on the outdoor side in the forward direction.

The arm plate 72 is formed into a long plate shape and is attached to the operation side base member 71. The arm plate 72 is attached to the operation side base member 71 at a position shifted toward the outdoor side from the inclined guide part 62, and when the inner shoji 30 is moved in the left-right direction X, the inclined guide part 62 of the safety device main body 60 Move in the left-right direction X along. The arm plate 72 extends in the left-right direction X before the operating arm portion 70 is introduced into the safety device main body 60.

The arm plate 72 is configured to be rotatable around the rotation axis J1. As shown in FIG. 7, the rotation axis J1 is arranged below the collision part 641a of the collision plate 641 of the stopper part 64 when viewed in the direction of the rotation axis J1. The collision portion 641a is a portion with which the tip portion 721 of the arm plate 72 collides, and is a portion on the collision plate 641 of the stopper portion 64 on which a load is applied when the tip portion 721 of the arm plate 72 collides.

The base end side of the arm plate 72 is connected to the X1 side in the left-right direction of the operation-side base member 71 so as to be rotatable about the rotation axis J1. A tip portion 721 (moving portion) is formed at the tip of the arm plate 72. The tip portion 721 is formed in an arc shape. A tip end pin 73 is provided on the tip side of the arm plate 72 and projects toward the indoor side in the forward direction.

The tip side pin 73 is formed in a pin shape, and protrudes toward the indoor side from the indoor side surface of the arm plate 72 at the tip side of the arm plate 72. The distal end pin 73 is disposed on the proximal end side of the inside of the arm plate 72 rather than the distal end portion 721 of the arm plate 72 when viewed in the forward direction. The tip side pin 73 is rotatable around a central axis J2 extending in the viewing direction.

The tip side pin 73 is provided on the tip side of the arm plate 72, and when the operating arm section 70 moves in the first movement direction D1, the arm plate 72 rotates around the rotation axis J1, so that the tilt guide It is moved along the upper surface of the section 62. Thereby, the tip side pin 73 guides the movement of the tip portion 721 of the arm plate 72. The tip side pin 73 moves the tip 721 of the arm plate 72 in the first moving direction D1 in which the inner shoji 30 moves and in the vertical direction Z of the inner shoji 30 (crossing direction intersecting the first moving direction D1). to guide you.

The distal end portion 721 of the arm plate 72 is guided by the distal end pin 73 along the upper surface of the inclined guide portion 62, so that the distal end portion 721 of the arm plate 72 moves in the first movement direction D1 in which the inner shoji 30 moves as the inner shoji 30 moves to open and close. Constructed to be movable. The tip portion 721 of the arm plate 72 is configured to be movable in the vertical direction while drawing an arc around the rotation axis J1 of the arm plate 72.

As a result, the tip end portion 721 of the arm plate 72 is configured to be movable in the first movement direction D1 in which the inner shoji 30 moves as the inner shoji 30 moves to open and close, and also in the vertical direction Z (first direction) of the inner shoji 30. It is possible to move in a direction that intersects the first movement direction D1. The distal end portion 721 of the arm plate 72 is guided downward by its own weight when the distal end pin 73 is guided downward by the drop guiding communication portion 65.

Next, the operation of the safety device 10 of the opening/closing device 1 of this embodiment will be explained.
First, as shown in FIG. 10, a case will be described in which the inner shoji 30 is moved from the open position in the first moving direction D1 and the inner shoji 30 is closed.

By closing the inner shoji 30, the operating arm section 70 attached to the inner shoji 30 is moved in the first movement direction D1 toward the safety device main body 60. Thereby, as shown in the upper diagram of FIG. 10, the tip portion 721 of the arm plate 72 of the operating arm portion 70 is introduced into the safety device main body 60. The tip 721 of the arm plate 72 introduced into the safety device main body 60 is movable in the vertical direction while drawing an arc around the rotation axis J1 of the arm plate 72.

When the inner shoji 30 is closed at a predetermined speed or higher, as shown in the upper diagram of FIG. 73 is guided by the inclined guide part 62, and moves along the upper surface of the inclined guide part 62 in the first movement path K1, and as shown in the middle diagram of FIG. It collides with the collision part 641a. The collision portion 641a is a portion of the collision plate 641 of the stopper portion 64 on which a load is applied when the tip portion 721 of the arm plate 72 collides.

Here, as shown in the middle diagram of FIG. 10, the distal end portion 721 of the arm plate 72 is arranged such that the rotation axis J1 at the base end of the arm plate 72 is located below the collision portion 641a of the collision plate 641 of the stopper portion 64. has been done. Therefore, when the tip portion 721 of the arm plate 72 collides with the stopper portion 64, the tip portion 721 of the arm plate 72 collides with the stopper portion 64 by being moved to the X2 side in the left-right direction X of the first movement path K1. During a collision, a load acts diagonally upward. Furthermore, a restriction portion 642 provided at the upper part of the front side of the collision plate 641 restricts the tip portion 721 of the arm plate 72 from moving upward. Thereby, the tip portion 721 of the arm plate 72 is unlikely to fall downward. Therefore, the state in which the distal end portion 721 of the arm plate 72 collides with the stopper portion 64 is easily maintained, and the inner shoji 30 is easily stopped once.

Thereafter, the load acting diagonally upward in the state where the distal end portion 721 of the arm plate 72 collides with the stopper portion 64 is relaxed, and as shown in the lower diagram of FIG. The distal end pin 73 rotates around the rotation axis J1, passes through the drop guide communication part 65, and falls from the gap in the drop guide communication part 65 to the second moving path K2 on the lower side. Thereby, the tip portion 721 of the arm plate 72 is guided to the second movement path K2 on the lower side. When the tip portion 721 of the arm plate 72 is guided downward by the fall guide communication portion 65, the tip portion 721 of the arm plate 72 is guided downward by its own weight.

The predetermined speed or higher at which the inner shoji 30 once stops means, for example, a speed higher than the speed at which the inner shoji 30 would forcefully close if the safety device 10 were not present. In this embodiment, when the inner shoji 30 is closed at a predetermined speed or higher, the tip side pin 73 collides with the collision plate 641, so that the inner shoji 30 collides with the vertical frame 24 of the frame body 20 with force. This is suppressed, and the inner shoji 30 temporarily stops.

On the other hand, when the inner shoji 30 is closed at a speed slower than the predetermined speed, as shown in the upper diagram of FIG. , along the upper surface of the inclined guide portion 62 . As shown in the lower diagram of FIG. The inner shoji 30 falls onto the second moving path K2 on the side, and is moved in the first moving direction D1 without stopping. As a result, the inner shoji 30 is moved in the first movement direction D1 and closed, as shown in the lower diagram of FIG.

The speed slower than the predetermined speed at which the inner shoji 30 is closed without stopping means, for example, a speed slower than the speed at which the inner shoji 30 is closed vigorously when the inner shoji 30 is closed. In this embodiment, when the inner shoji 30 is closed at a speed slower than a predetermined speed, the tip 721 of the arm plate 72 does not collide with the collision plate 641 with force, and the inner shoji 30 does not stop. It will be closed. In this case, the tip end pin 73 may contact the collision plate 641 and be guided to the fall guidance communication section 65, or may be guided by the fall guidance communication section 65 without contacting the collision plate 641. good.

Next, a case will be described in which the inner shovel 30 is opened from the closed position shown in the upper row of FIG. 11 by moving it in the second moving direction D2 on the X1 side in the left-right direction X.

When opening the inner shoji 30, by moving the inner shoji 30 in the second movement direction D2 from the closed position of the inner shoji 30 shown in the upper row of FIG. , and is moved in the second movement direction D2 and introduced into the return movement path K3.

When the operating arm section 70 introduced into the return movement path K3 moves from the return movement path K3 to the first movement path K1, as shown in the lower diagram of FIG. The side pin 73 pushes up the inclined guide part 62 from below. Thereby, the tip side pin 73 rotates the inclined guide portion 62 around the rotation axis J3, and opens a path for moving from the return movement path K3 to the first movement path K1. In this way, the inner shoji 30 can be moved in the second movement direction D2 and the inner shoji 30 can be opened.

According to this embodiment, the following effects are achieved. The safety device 10 for the opening/closing device 1 of the present embodiment is configured to be rotatable around a rotation axis J1, and is movable in a first movement direction D1 in which the inner shoji 30 moves, as well as in the vertical direction Z of the inner shoji 30. an arm member 72 having a movable part 721 that is movable; and a stopper with which the tip end 721 of the arm plate 72 collides so as to temporarily stop the opening/closing operation of the inner shoji 30 when the inner shoji 30 is moved at a predetermined speed or higher. 64 and the inner shoji 30 are moved at a predetermined speed or higher, the tip 721 of the arm plate 72 collides with the stopper 64 and then guides the tip 721 of the arm plate 72 downward, so that the inner shoji 30 A fall guide communication part 65 that guides the tip end 721 of the arm plate 72 downward in front of the stopper part 64 without stopping the opening/closing operation of the inner shoji 30 when it is moved at a speed slower than a predetermined speed. In addition, the rotation axis J1 is arranged below the collision part 641a of the stopper part 64.

As a result, the rotation axis J1, which is the fulcrum of the arm plate 72, is arranged below the collision part 641a, so that when the tip part 721 of the arm plate 72 collides with the collision part 641a, the tip part 721 of the arm plate 72 Since it becomes difficult to move downward, the distal end portion 721 of the arm plate 72 can be reliably held on the upper side, and safety can be improved. Therefore, the reliability of the operation of the finger pinch prevention mechanism can be improved.

In this embodiment, the distal end portion 721 of the arm plate 72 is configured to collide with the colliding portion 641a. Thereby, since the arm plate 72 itself collides with the collision part 641a, there is no need to provide the arm plate 72 with another member for colliding with the collision part 641a, so that the device can be made smaller.

In this embodiment, the arm plate 72 has a tip end pin 73 that guides the tip end 721 of the arm plate 72 to move in the first moving direction D1 and the vertical direction Z. formed into a shape. Thereby, by guiding the tip 721 of the arm plate 72 with the tip side pin 73, the tip 721 of the arm plate 72 can be smoothly moved along each path, so that the inner shoji 30 can be moved smoothly. be able to.

In this embodiment, when the tip end 721 of the arm plate 72 is guided downward by the fall guide communication part 65, it is guided downward by its own weight. Therefore, with a simple configuration, the tip portion 721 of the arm plate 72 can be guided downward, and the inner shoji 30 can be guided to the second movement path K2 side.

Although preferred embodiments of the present disclosure have been described above, the present disclosure is not limited to the above-described embodiments and can be modified as appropriate.

For example, in the embodiment described above, the case where the inner shoji 30 is closed has been described, but the present invention is not limited to this. For example, the arm plate 72 of the safety device 10 may be provided on the door side of the inner shoji 30, and the safety device body 60 of the safety device 10 may be provided on the end side of the upper frame 21 of the frame 20 on the X1 side in the left-right direction. It may also be used as a safety device for opening the inner shoji 30 on the X1 side of the frame 20 in the left-right direction.

In the embodiment described above, the door body was configured with the inner shoji 30, but the present invention is not limited to this, and the door body may be configured with a door that does not have a frame or glass. Further, for example, the door body may be constituted by a door.

By applying the opening/closing device of the present disclosure to a door that is electrically opened/closed such as an automatic door, the opening/closing device of the present disclosure can be used even when the electric part fails and the door is manually opened/closed. It is also applicable to a soft-close opening/closing device that closes gently when opening/closing.

In the embodiment, the opening/closing device 1 is configured with a double sliding window, but is not limited to this, and may be configured with a single sliding window, for example.

In the embodiment, the safety device main body 60 (stopper part 64) is arranged at the end of the upper frame 21 on the X2 side in the left-right direction However, it is not limited to this. For example, the safety device main body 60 (stopper portion 64) is arranged on the center side of the upper frame 21 in the left-right direction X, and the operating arm portion 70 corresponds to the safety device main body 60 (stopper portion 64) in the left-right direction It may be arranged at a position (for example, on the center side of the inner shoji 30 in the left-right direction X).

In the embodiment described above, the safety device main body 60 (stopper part 64) was attached so as to temporarily stop the inner shoji (door body) at a position where fingers would not be caught, but the present invention is not limited to this. By adjusting the mounting position of the stopper part in the left and right direction, the position where the inner shoji is temporarily stopped can be adjusted. This makes it possible to prevent fingers from being pinched by adjusting the horizontal mounting position of the stopper part so that the inner shoji is temporarily stopped at a position that does not pinch heads or torsos that are larger than fingers. This also prevents the head or torso from getting caught.

In the embodiment described above, by providing one safety device main body 60 (stopper portion 64), there is only one position in the left and right direction at which the inner shoji (door body) temporarily stops, but the present invention is not limited to this. By providing the safety device main body 60 (stopper part 64) at a plurality of positions in the left-right direction, the inner shoji 30 may be temporarily stopped at a plurality of positions in the left-right direction. As a result, by providing the safety device main body 60 (stopper part 64) at a plurality of positions in the left and right direction, it is possible to temporarily stop the inner shoji in stages. For example, when the inner shoji is closed, a person's torso is The inner shoji can be temporarily stopped at a position where it will not pinch people's heads, and even if the inner shoji moves further in the direction of closing, it can be stopped once at a position where it will not pinch people's heads, and from there it will continue to close. Even if the shoji moves in the closing direction, the inner shoji can be temporarily stopped at a position where fingers will not be caught. Therefore, by providing a plurality of safety device main bodies 60 (stopper parts 64) at a plurality of positions in the left-right direction, a plurality of parts such as a person's fingers, head, and torso are sandwiched between the inner shoji and the vertical frame. This can be prevented.

In addition, as another form in which the safety device main body 60 (stopper portion 64) is provided at multiple locations, for example, the safety device main body 60 (stopper portion 64) is installed between three-panel or four-panel sliding doors. This may prevent fingers from being caught between the sliding doors.

In the embodiment, the distal end pin 73 is configured to be rotatable about the central axis, but the present invention is not limited thereto, and the distal end pin 73 may be configured to not rotate.

In the embodiment described above, the distal end portion 721 of the arm plate 72 was configured to collide with the stopper portion 64, but the present invention is not limited to this. A roller may be provided at the tip of the arm plate 72 so that the roller provided at the tip of the arm plate collides with the stopper portion. In this case, a roller provided at the tip of the arm plate 72 may be configured as a pin that guides the movement of the arm plate 72.

In the embodiment described above, the L-shaped member 75 in the operating arm portion 70 is configured as a separate member from the operating side base member 71, but the present invention is not limited thereto. The L-shaped member 75 may be configured integrally with the operation-side base member 71, and an L-shaped portion, a protrusion, etc. may be formed on the operation-side base member 71.

In the embodiment described above, the operating arm portion 70 was fixed to the inner shoji 30 together with the reinforcing member 37 using the screws 701, but the present invention is not limited thereto. The operating arm portion 70 may be directly fixed to the inner sliding door 30 without providing the reinforcing member 37.

1 Opening/closing device, 10 Safety device, 20a Opening, 30 Internal shoji (door body), 64 Stopper portion, 65 Fall guidance communication portion (guiding portion), 72 Arm plate (arm member), 73 Tip side pin (guide portion) , 641a collision part, 701 screw (first fastening member), 702 screw (second fastening member), 721 tip part (moving part), D1 first moving direction, Z vertical direction (crossing direction), J1 rotation axis

Claims (4)

A safety device for an opening/closing device that can open and close an opening by opening and closing a door body,
an arm member configured to be rotatable around a rotation axis, the arm member being movable in a first movement direction in which the door body moves as the door body moves to open and close; an arm member having a moving part that is movable in a cross direction that intersects the direction;
a stopper portion with which the moving portion collides to temporarily stop the opening/closing operation of the door body when the door body is moved at a predetermined speed or higher;
When the door body is moved at a predetermined speed or higher, the moving part is guided to fall in the intersecting direction after colliding with the stopper part, and the door body is moved at a speed slower than the predetermined speed. a guiding part that guides the moving part to fall in the intersecting direction before the stopper part without stopping the opening/closing operation of the door body;
The rotating shaft is a safety device for an opening/closing device, wherein the rotating shaft is disposed below a collision part with which the moving part of the stopper part collides, when viewed in the direction of the rotating shaft. The safety device for an opening/closing device according to claim 1, wherein the moving section is constituted by a distal end portion of the arm member. The arm member has a guide portion that guides the moving portion to move in the first moving direction and the intersecting direction,
The safety device for an opening/closing device according to claim 1 or 2, wherein the guide portion is formed in a pin shape. The moving part is provided on the upper side of the door body so as to extend in the direction of the door body, and when guided in the cross direction, the moving part is guided downward by the own weight of the moving part. The opening/closing device according to any one of ~3.

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