Safety device for opening and closing device

Abstract

To provide a safety device for an opening / closing device that is compact and can be realized at low cost.SOLUTION: A safety device 10 for an opening / closing device 1, which can open / close an opening 20a by causing a door body 30 to undergo an opening / closing movement includes a deceleration device 80 that decelerates the movement speed of the opening / closing movement of the door body 30, and a stopper device 50 that temporarily stops the opening / closing movement of door body 30 decelerated by the deceleration device 80.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] The present disclosure relates to a safety device for an opening / closing device.

Background Art

[0002] Conventionally, a safety device for an opening / closing device including a speed reduction device has been known (see Patent Document 1). The speed reduction device prevents a finger from being pinched between the door body and the frame body by reducing the moving speed of the opening / closing movement of the door body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, when the opening / closing operation is performed by a large-sized door body or when the opening / closing operation of the door body is performed at a high speed, a large-sized speed reduction device capable of coping with the large load or high speed of the door body is required. In this case, there is a problem that the size of the speed reduction device is increased, which causes restrictions on the installation location of the speed reduction device, or the cost for installing the speed reduction device and the cost for increasing the size become high. Therefore, a safety device for an opening / closing device that can be miniaturized while reducing costs is desired.

[0005] An object of the present disclosure is to provide a safety device for an opening / closing device that can be miniaturized and has low costs.

Means for Solving the Problems

[0006] The present disclosure relates to a safety device for an opening / closing device capable of opening and closing an opening by an opening / closing movement of a door body, including a speed reduction device that reduces the moving speed of the opening / closing movement of the door body, and a stopper device that temporarily stops the opening / closing operation of the door body decelerated by the speed reduction device.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Modes for Carrying Out the Invention

[0008] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. In this specification, the "looking direction" means the surface direction of the glass in the shutter housed in the opening 20a of the frame body 20 arranged in the building, and the "looking-in direction" means the thickness direction (i.e., the depth direction) of the above glass. In the drawings, the outdoor side is described as "OUTSIDE" and the indoor side is described as "INSIDE".

[0009] The opening and closing device 1 of the present embodiment is a so-called sliding window. As shown in FIG. 1, it includes a frame body 20, an inner shutter 30 (door body) and an outer shutter 40 that are slidably fitted into the frame body 20, and a safety device 10. The opening and closing device 1 can open and close the opening 20a by the opening and closing movement of the inner shutter 30 and the outer shutter 40 in the left-right direction X. The safety device 10 is for the opening and closing device 1.

[0010] The frame body 20 is framed in a rectangle by an upper frame 21, a lower frame 22, and left and right vertical frames 23, 24.

[0011] The upper frame 21 is formed in a long shape and extends in the finding 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 a long shape and extends in the finding direction at the lower part of the frame body 20. The lower frame 22 is formed to be open upward.

[0012] The left and right vertical frames 23, 24 extend vertically at both ends in the finding direction of the upper frame 21 and the lower frame 22. The left and right vertical frames 23, 24 are formed in a long shape and constitute the side parts of the frame body 20.

[0013] Both the inner shutter 30 and the outer shutter 40 are sliding doors, and by sliding them in the finding direction, they constitute a so-called sliding window in which the opening 20a of the frame body 20 is opened or closed.

[0014] As shown in FIG. 1, the inner shutter 30 includes a frame body 35 framed in a rectangle by a long upper frame 31, a lower frame 32, and left and right vertical frames, namely, an inner frame 33 and a door tip frame 34, and glass 36 fitted and fixed in the frame body 35.

[0015] As shown in FIG. 1, the outer shutter 40 includes a frame body 45 framed in a rectangle by a long upper frame 41, a lower frame 42, and left and right vertical frames, namely, an outer frame 43 and a door tip frame 44, and glass 46 fitted and fixed in the frame body 45.

[0016] The safety device 10 will be described. In the present 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 shutter 30. One side in the left-right direction X of the opening / closing device 1 (the left side in FIG. 1) is referred to as the X1 side, and the other side in the left-right direction X (the right side in FIG. 1) is referred to as the X2 side. Further, the up-down direction is referred to as the up-down direction Z. Also, the direction in which the inner shutter 30 is closed on the X2 side (the right side in FIG. 1) of the frame body 20 (the direction of moving from the X1 side to the X2 side) is referred to as the first moving direction D1, and the direction in which the inner shutter 30 is opened on the X2 side (the right side of FIG. 1) of the frame body 20 (the direction of moving from the X2 side to the X1 side) is referred to as the second moving direction D2.

[0017] The safety device 10 includes a finger pinching prevention mechanism. The safety device 10 includes a stopper device 50 and a speed reduction device 80. As shown in FIGS. 1 to 4, the stopper device 50 includes a stopper device main body 60 and an operation arm portion 70. The stopper device main body 60 is fixed to the end side on the X2 side in the left-right direction X of the upper frame 21 of the frame body 20, and thus is fixed to the upper portion on the X2 side in the left-right direction X of the opening 20a. The operation arm portion 70 is fixed to the X2 side in the left-right direction X of the upper frame 31 of the inner shutter 30, and thus is fixed to the upper portion on the X2 side in the left-right direction X of the inner shutter 30.

[0018] As shown in FIGS. 1 and 2, the operation arm portion 70 is introduced into the stopper device main body 60 when the inner shutter 30 is moved in the first moving direction D1. When the inner shutter 30 is closed at a speed faster than the first speed V1, since the safety device 10 includes a finger pinching prevention mechanism, it is possible to prevent the inner shutter 30 from colliding with the vertical frame 24 of the frame body 20.

[0019] For example, when the internal lens 30 moves toward the deceleration device 80 at a moving speed slower than the first speed V1, the stopper device 50 does not decelerate the moving speed of the internal lens 30 as in the operation of the operation example E1 of the internal lens 30 shown in FIG. 5. For example, when the internal lens 30 moves toward the deceleration device 80 at a moving speed equal to or higher than the first speed V1, the stopper device 50 receives the load of the internal lens 30 and decelerates the moving speed of the internal lens 30 as in the operation examples E2 and E3 of the internal lens 30 shown in FIG. 5.

[0020] Also, for example, when the internal lens 30 decelerated by the deceleration device 80 moves at a moving speed equal to or higher than the second speed V2, the stopper device 50 temporarily stops the opening and closing operation of the internal lens 30 as in the operation example E3 of the internal lens 30 shown in FIG. 5. For example, when the internal lens 30 decelerated by the deceleration device 80 moves at a moving speed slower than the second speed V2, the stopper device 50 does not stop the opening and closing operation of the internal lens 30 as in the operation example E2 of the internal lens 30 shown in FIG. 5.

[0021] As shown in FIGS. 2 to 4, the stopper device main body 60 includes a base member 61, an inclined guide portion 62, a path extension plate 63, a receiving portion 64, and a stopper portion 66. Further, the stopper device main body 60 has a first movement path K1 (upstream path), a drop guiding communication portion 65 (guiding portion), a second movement path K2 (downstream path), and a return movement path K3 (return path) as a movement path along which the tip end portion 721 of the arm plate 72 of the operation arm portion 70 moves.

[0022] The base member 61 has an upper surface plate 611 and side surface plates 612. The upper surface plate 611 has a width in the expected direction and extends in the left - right direction X, and is fixed to the upper frame 21. The side surface plates 612 extend downward from the indoor - side end portion of the upper surface plate 611 in the expected direction.

[0023] The first movement 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 and reaches the receiving portion 64. The first movement path K1 is a path along which the tip 721 (moving portion) of the arm plate 72 can be moved in the first movement direction D1 when the tip 721 of the arm plate 72 moves toward the receiving portion 64.

[0024] The second movement path K2 (downstream path) communicates with and is formed below the end portion on the X2 side in the left-right direction X of the first movement path K1 through a drop guide communication portion 65 formed below the end portion on the X2 side in the left-right direction X of the first movement path K1, and extends from below the end portion on the X2 side in the left-right direction X of the first movement path K1 to the X2 side in the left-right direction X. The second movement path K2 is a path along which the tip 721 of the arm plate 72 of the operation arm portion 70 guided by the drop guide communication portion 65 can be moved in the first movement direction D1.

[0025] The return movement path K3 extends from the end portion on the side opposite to the end portion on the first movement direction D1 side in the second movement path K2 toward the first movement path K1 side and merges with the upstream side of the first movement path K1. The return movement path K3 extends horizontally from the X2 side to the X1 side in the left-right direction X, passes through the lower side of the path extension plate 63 and the lower side of the inclined guide portion 62, and is a path that merges with the upstream side of the first movement path K1.

[0026] The inclined guide portion 62 is formed in a plate shape that inclines 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 on the X2 side in the left-right direction X of the inclined guide portion 62 is connected to the end portion on the X1 side in the left-right direction X of the path extension plate 63 so as to be rotatable about a rotation axis J3 extending in the expected direction. The inclined guide portion 62 is rotatable about the rotation axis J3 in a state where the rotation angle downward is restricted by a predetermined angle.

[0027] The inclined guide portion 62 is disposed at a portion where the first movement path K1 and the return movement path K3 merge. When the tip pin 73 of the operation arm portion 70 moves along the first movement path K1, the return movement path K3 is closed to form the first movement path K1. When the tip pin 73 moves from the return movement path K3 to the first movement path K1, the tip pin 73 pushes up from below and rotates upward about the rotation axis J3 from the closed position, thereby releasing the path for the tip pin 73 to move from the return movement path K3 to the first movement path K1. Thereby, when the arm plate 72 returns along the return movement path K3, the inclined guide portion 62 functions as an opening / closing portion that opens and closes the return movement path K3 by opening and closing the X1 side in the left-right direction X of the return movement path K3.

[0028] The path extension plate 63 is formed in a flat plate shape extending toward the X2 side from the end portion on the X2 side in the left-right direction X of the inclined guide portion 62. The end portion on the outdoor side in the expected direction of the path extension plate 63 is located at the same position as the end portion on the outdoor side in the expected direction of the inclined guide portion 62.

[0029] The receiving portion 64 is disposed at the end portion on the X2 side in the left-right direction X of the first movement path K1. A speed reduction device 80 is connected to the surface on the X2 side in the left-right direction X of the receiving portion 64.

[0030] When the intraocular lens 30 is moved at a moving speed of the first speed V1 or higher, the receiving portion 64 receives the load of the tip portion 721 of the arm plate 72 and decelerates the moving speed of the intraocular lens 30 by the speed reduction device 80. When the intraocular lens 30 is moved at a speed slower than the first speed V1, the tip portion 721 of the arm plate 72 does not contact or contacts the receiving portion 64 in front of the receiving portion 64, and the tip pin 73 is guided by the drop guiding communication portion 65 (guiding portion) communicating with the second movement path K2, and is guided downward (intersecting direction) by the drop guiding communication portion 65 (guiding portion).

[0031] The receiving portion 64 includes a plate-shaped collision plate 641 extending in the vertical direction Z and the expected direction, and a restricting portion 642.

[0032] The collision plate 641 is fixed to the base member 61 below the upper surface plate 611 of the base member 61. The collision plate 641 is formed in a plate shape extending in the expected direction. The width of the collision plate 641 in the expected direction is formed to be longer than the width of the inclined guide portion 62 in the expected direction, and extends to the outdoor side beyond the inclined guide portion 62.

[0033] The collision plate 641 has a collision surface facing the X1 side in the left - right direction X. The portion where the tip 721 of the arm plate 72 collides with the collision plate 641 constitutes the collision portion 641a. The collision portion 641a is the portion where the load acts when the tip 721 of the arm plate 72 collides with the collision portion 641a of the receiving portion 64.

[0034] The restricting portion 642 is provided at the upper part on the front side of the collision plate 641. In the present embodiment, the restricting portion 642 is constituted by the lower surface of the upper surface plate 611 of the base member 61. The restricting portion 642 restricts the upward movement of the tip - side pin 73, thereby restricting the upward movement of the tip 721 of the arm plate 72.

[0035] A drop - guiding communication portion 65 (guiding portion) communicating with the second movement path K2 is formed at the lower part in front of the X1 side in the left - right direction X of the collision plate 641. The drop - guiding communication portion 65 is constituted by a gap between the lower end portion of the collision plate 641 and the end portion on the X2 side in the left - right direction of the path extending plate 63.

[0036] When the inner shutter 30 is moved at a speed slower than the first speed V1, the drop - guiding communication portion 65 guides the tip - side pin 73 downward in front of the receiving portion 64 without the inner shutter 30 stopping, thereby guiding the tip 721 of the arm plate 72 downward (in the crossing direction). The speed slower than the first speed V1 at which the inner shutter 30 is closed without stopping means, for example, a speed slower than the speed at which the inner shutter 30 closes vigorously when closing the inner shutter 30.

[0037] When the internal lens 30 moves at a speed equal to or higher than the first speed V1, the tip 721 of the arm plate 72 received by the receiving portion 64 is decelerated by a deceleration device 80 (described later), so that the speed of the internal lens 30 is decelerated. When the internal lens 30 moves at a speed equal to or higher than the first speed V1 and is received by the receiving portion 64, the speed of the tip 721 of the arm plate 72 is gradually decelerated from a speed equal to or higher than the first speed V1 by the deceleration device 80 according to the moving distance of the internal lens 30 in the first moving direction D1.

[0038] When the tip 721 of the arm plate 72 decelerated by the deceleration device 80 moves at a moving speed equal to or higher than the second speed V2, the tip 721 of the arm plate 72 is guided downward (in the intersecting direction) after being received by the receiving portion 64. When the internal lens 30 moves at a speed lower than the second speed V2, the tip 721 of the arm plate 72 is guided downward (in the intersecting direction) in front of the receiving portion 64 without stopping the opening and closing operation of the internal lens 30.

[0039] The length L in the left - right direction X of the gap of the drop - guiding communication portion 65 is a length through which the tip - side pin 73 can pass. When the internal lens 30 moves in the first moving direction D1 at a speed equal to or higher than the first speed V1 or the second speed V2 and the tip - side pin 73 is introduced into the stopper device body 60, the length is set such that the tip 721 of the arm plate 72 can collide with the collision plate 641 before the tip - side pin 73 drops from the gap of the drop - guiding communication portion 65.

[0040] The deceleration device 80 is connected to the surface on the X2 side in the left - right direction X of the receiving portion 64. The deceleration device 80 decelerates the moving speed of the tip 721 of the arm plate 72 received by the receiving portion 64, thereby decelerating the moving speed of the opening and closing movement of the internal lens 30. The deceleration device 80 includes a deceleration device body 81 and a piston 82 extending in the left - right direction X. The deceleration device body 81 has an oil damper mechanism (not shown) inside. The oil damper mechanism of the deceleration device body 81 attenuates the force acting on the piston 82 due to the resistance of the working oil contained inside when the piston 82 moves forward and backward in the left - right direction X.

[0041] The end portion of the piston 82 on the X1 side in the left - right direction X is connected to the surface on the X2 side in the left - right direction X of the receiving portion 64. The end portion side of the piston 82 on the X2 side in the left - right direction X is supported by the speed reduction device main body 81. The piston 82 can move forward and backward in the left - right direction Z with respect to the speed reduction device main body 81.

[0042] A stopper portion 66 of the stopper device main body 60 is provided at the end portion of the speed reduction device main body 81 on the X1 side in the left - right direction X. When the tip portion 721 of the arm plate 72 decelerated by the speed reduction device 80 is received by the receiving portion 64 and moved to a predetermined position, the stopper portion 66 restricts the movement of the receiving portion 64 so as to temporarily stop the opening and closing operation of the inner shutter 30.

[0043] The stopper portion 66 is such that when the receiving portion 64 moves to the position where the piston 82 of the speed reduction device 80 moves forward and backward and moves to the side closest to the speed reduction device 80, the surface on the X2 side in the left - right direction X of the receiving portion 64 collides with it. The stopper portion 66 is arranged at a position where, when the receiving portion 64 collides with the stopper portion 66, a distance that can prevent finger pinching can be created between the inner shutter 30 and the vertical frame 24 of the frame body 20. Thus, since the movement of the receiving portion 64 in the left - right direction X that receives the tip portion 721 of the arm plate 72 is restricted by the stopper portion 66, it is possible to prevent the inner shutter 30 from colliding with the vertical frame 24 of the frame body 20.

[0044] As described above, the speed reduction device 80 is connected to the X2 side in the left - right direction X of the receiving portion 64. Therefore, with the tip portion 721 of the arm plate 72 of the operation arm portion 70 received by the collision portion 641a of the collision plate 641 of the receiving portion 64, the inner shutter 30 is decelerated by the speed reduction device 80.

[0045] And, when the inner shutter 30 is decelerated by the speed reduction device 80 and the inner shutter 30 is decelerated to a speed slower than the second speed V2 before the receiving portion 64 reaches the stopper portion 66, the fall - guiding communication portion 65 guides the tip portion 721 of the arm plate 72 downward (in the crossing direction) in front of the receiving portion 64 without stopping the opening and closing operation of the inner shutter 30.

[0046] Also, in a state where the shutter 30 is decelerated by the deceleration device 80, until the receiving portion 64 reaches the stopper portion 66, when the shutter 30 is at a speed equal to or higher than the second speed V2, the drop guiding communication portion 65 guides the tip side pin 73 downward after the receiving portion 64 collides with the stopper portion 66 to temporarily stop the opening and closing operation of the shutter 30, thereby guiding the tip portion 721 of the arm plate 72 downward (in the crossing direction).

[0047] The second speed V2 or higher at which the shutter 30 decelerated by the deceleration device 80 temporarily stops means a speed equal to or higher than the speed at which the shutter 30 closes forcefully when the shutter 30 is not decelerated in the deceleration device 80. In the present embodiment, when the shutter 30 is at a speed equal to or higher than the second speed V2 even if the shutter 30 is decelerated in the deceleration device 80, the receiving portion 64 collides with the stopper portion 66, suppressing the shutter 30 from colliding forcefully with the vertical frame 24 of the frame body 20, and the shutter 30 temporarily stops.

[0048] On the other hand, the speed slower than the second speed V2 at which the shutter 30 decelerated by the deceleration device 80 is closed without stopping means, for example, a speed slower than the speed at which the shutter 30 closes forcefully when closing the shutter 30.

[0049] As shown in FIG. 1, the operation arm portion 70 is disposed on the X2 side in the left - right direction X of the upper frame 31 of the shutter 30. The operation arm portion 70 is introduced into the stopper device main body 60 when the shutter 30 is moved to the closing side on the X2 side in the left - right direction X. As shown in FIGS. 2 to 4, the operation arm portion 70 includes an operation - side base member 71, an arm plate 72 (arm member), and a tip - side pin 73 (guide portion).

[0050] As shown in FIGS. 2 to 4, the operation - side base member 71 is formed to extend in the left - right direction X. The operation - side base member 71 is disposed at a position shifted to the outdoor side from the inclined guide portion 62, and when the shutter 30 is moved in the left - right direction X, it moves in the left - right direction X along the inclined guide portion 62 of the stopper device main body 60.

[0051] The operation-side base member 71 has a bottom plate 711, a first side plate 712, and a second side plate 713. The bottom plate 711 has a width in the prospective direction and is formed to extend in the left-right direction X. The bottom plate 711 has a width in the prospective direction and is formed to extend in the left-right direction X.

[0052] The first side plate 712 rises upward from the indoor-side end of the bottom plate 711 in the prospective direction. The second side plate 713 rises upward from the outdoor-side end of the bottom plate 711 in the prospective direction.

[0053] The arm plate 72 is formed in 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 to the outdoor side from the inclination guide portion 62. When the intraocular lens 30 is moved in the left-right direction X, it moves in the left-right direction X along the inclination guide portion 62 of the stopper device main body 60. The arm plate 72 extends in the left-right direction X in a state before the operation arm portion 70 is introduced into the stopper device main body 60.

[0054] The arm plate 72 is configured to be rotatable about a rotation axis J1. As shown in FIG. 2, the rotation axis J1 is disposed below the collision portion 641a of the collision plate 641 of the receiving portion 64 when viewed in the direction of the rotation axis J1. The collision portion 641a is a portion where the tip portion 721 of the arm plate 72 collides, and is a portion where the load acts when the tip portion 721 of the arm plate 72 collides with the collision plate 641 of the receiving portion 64.

[0055] The base end side of the arm plate 72 is rotatably connected to the X1 side in the left-right direction of the operation-side base member 71 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-side pin 73 protruding toward the indoor side in the prospective direction is provided on the tip side of the arm plate 72.

[0056] The tip-side pin 73 is formed in a pin shape and protrudes inward from the inner side surface of the arm plate 72 on the tip side of the arm plate 72. When viewed in the expected direction, the tip-side pin 73 is disposed on the proximal side inside the arm plate 72 rather than at the tip portion 721 of the arm plate 72. The tip-side pin 73 is rotatable about a central axis J2 extending in the expected direction.

[0057] The tip-side pin 73 is provided on the tip side of the arm plate 72. When the operation arm portion 70 moves in the first movement direction D1, the arm plate 72 rotates about the rotation axis J1, so that the tip-side pin 73 moves along the upper surface of the inclined guide portion 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 guides the tip portion 721 of the arm plate 72 to move in the first movement direction D1 in which the intraocular lens 30 moves and in the vertical direction Z (the intersecting direction intersecting the first movement direction D1) of the intraocular lens 30.

[0058] The tip portion 721 of the arm plate 72 is configured to be movable in the first movement direction D1 in which the intraocular lens 30 moves as the intraocular lens 30 opens and closes, by guiding the tip-side pin 73 along the upper surface of the inclined guide portion 62. The tip portion 721 of the arm plate 72 is configured to be movable in the vertical direction while drawing an arc about the rotation axis J1 of the arm plate 72.

[0059] Thereby, the tip portion 721 of the arm plate 72 is configured to be movable in the first movement direction D1 in which the intraocular lens 30 moves as the intraocular lens 30 opens and closes, and is also movable in the vertical direction Z (the intersecting direction intersecting the first movement direction D1) of the intraocular lens 30. When the tip-side pin 73 is guided downward by the drop induction communication portion 65, the tip portion 721 of the arm plate 72 is guided downward by the self-weight of the tip portion 721 of the arm plate 72.

[0060] Next, the operation of the safety device 10 of the opening and closing device 1 of the present embodiment will be described. First, as shown in FIGS. 6 to 8, the case where the intraocular lens 30 is moved in the first movement direction D1 from the open position to close the intraocular lens 30 will be described.

[0061] A case where the iris 30 is closed at a speed slower than the first speed V1 will be described. As in the operation example E1 of the iris 30 shown in FIG. 5, when the iris 30 is closed at a speed slower than the first speed V1, as shown in FIG. 6, the operation arm portion 70 attached to the iris 30 is moved in the first moving direction D1 toward the stopper device main body 60. As a result, as shown in the upper diagram of FIG. 6, the tip portion 721 of the arm plate 72 of the operation arm portion 70 introduced into the stopper device main body 60 moves along the upper surface of the inclined guide portion 62 in the first movement path K1 as the tip side pin 73 is guided by the inclined guide portion 62.

[0062] Since the iris 30 is closed at a speed slower than the first speed V1, as shown in the middle diagram of FIG. 6, the tip portion 721 of the arm plate 72 of the operation arm portion 70 does not contact or contacts the collision portion 641a of the collision plate 641 of the receiving portion 64 and falls through the drop guiding communication portion 65 to the lower second movement path K2 as shown in the lower diagram of FIG. 6, and the iris 30 is moved in the first moving direction D1 without stopping. As a result, the iris 30 is moved in the first moving direction D1 and closed. The speed slower than the first speed V1 at which the iris 30 is closed without stopping means, for example, a speed slower than the speed at which the iris 30 closes vigorously when closing the iris 30.

[0063] Next, a case where the iris 30 is closed at a speed equal to or higher than the first speed V1 will be described. As in the operation examples E2 and E3 of the iris 30 shown in FIG. 5, when the iris 30 is closed at a speed equal to or higher than the first speed V1, as shown in FIG. 7, the tip portion 721 of the arm plate 72 of the operation arm portion 70 introduced into the stopper device main body 60 moves along the upper surface of the inclined guide portion 62 in the first movement path K1 as the tip side pin 73 is guided by the inclined guide portion 62, and as shown in the upper diagram of FIG. 7, is received by the collision portion 641a of the collision plate 641 of the receiving portion 64. Then, with the tip portion 721 of the arm plate 72 of the operation arm portion 70 being received by the collision portion 641a of the collision plate 641 of the receiving portion 64, it moves to the X2 side in the left-right direction X while pressing the receiving portion 64.

[0064] A speed reducer 80 is connected to the X2 side in the left - right direction X of the receiving portion 64. Therefore, with the tip 721 of the arm plate 72 of the operation arm portion 70 received by the collision portion 641a of the collision plate 641 of the receiving portion 64, the intraocular lens 30 is decelerated by the speed reducer 80.

[0065] And, in a state where the intraocular lens 30 is decelerated by the speed reducer 80, as in the operation example E2 of the intraocular lens 30 shown in FIG. 5, if the intraocular lens 30 is decelerated to a speed slower than the second speed V2 before the receiving portion 64 reaches the stopper portion 66, as shown in the middle and lower diagrams of FIG. 7, it falls through the drop - guiding communication portion 65 to the lower - side second movement path K2, and the intraocular lens 30 is moved in the first movement direction D1 without stopping. Thereby, the intraocular lens 30 is moved in the first movement direction D1 and closed. The speed slower than the second speed V2 at which the intraocular lens 30 decelerated by the speed reducer 80 is closed without stopping means, for example, a speed slower than the speed at which the intraocular lens 30 closes vigorously when closing the intraocular lens 30.

[0066] Also, in a state where the intraocular lens 30 is decelerated by the speed reducer 80, as in the operation example E3 of the intraocular lens 30 shown in FIG. 5, if the intraocular lens 30 is at a speed equal to or higher than the second speed V2 until the receiving portion 64 reaches the stopper portion 66, as shown in the upper diagram of FIG. 8, the receiving portion 64 collides with the stopper portion 66.

[0067] The second speed V2 or higher at which the intraocular lens 30 decelerated by the speed reducer 80 stops once means a speed equal to or higher than the speed at which the intraocular lens 30 closes vigorously when the intraocular lens 30 is not decelerated in the speed reducer 80. In the present embodiment, when the intraocular lens 30 is decelerated in the speed reducer 80 but is at a speed equal to or higher than the second speed V2, by the receiving portion 64 colliding with the stopper portion 66, the intraocular lens 30 is prevented from colliding vigorously with the vertical frame 24 of the frame body 20, and the intraocular lens 30 stops once.

[0068] Here, as shown in the upper diagram of FIG. 8, the tip portion 721 of the arm plate 72 is disposed below the collision portion 641a of the collision plate 641 of the receiving portion 64 where the rotation axis J1 at the base end of the arm plate 72 is received. Therefore, when it is moved to the end portion on the X2 side in the left - right direction X of the first movement path K1 and the receiving portion 64 collides with the stopper portion 66 and the tip portion 721 of the arm plate 72 is received by the receiving portion 64, a load acts obliquely upward in the state where the tip portion 721 of the arm plate 72 is received by the receiving portion 64. Also, by the restricting portion 642 provided at the upper portion on the front side of the collision plate 641, the tip - side pin 73 is restricted from moving upward. Thereby, the tip portion 721 of the arm plate 72 is difficult to fall downward. Thus, the state where the tip portion 721 of the arm plate 72 collides with the receiving portion 64 is easily maintained, and it is easy to temporarily stop the internal lens 30.

[0069] Thereafter, the tip portion 721 of the arm plate 72 rotates about the rotation axis J1 at the base end of the arm plate 72 by its own weight as the load acting obliquely upward in the state of colliding with the receiving portion 64 is relaxed, and falls through the fall - induction communication portion 65 to the second movement path K2 on the lower side, and is thus guided to the second movement path K2 on the lower side as shown in the lower diagram of FIG. 8. When the tip portion 721 of the arm plate 72 is guided downward by the fall - induction communication portion 65, it is guided downward by the own weight of the tip portion 721 of the arm plate 72.

[0070] Next, the case of opening the internal lens 30 by moving it in the second movement direction D2 on the X1 side in the left - right direction X from the closed position of the internal lens 30 shown in the upper part of FIG. 9 will be described.

[0071] When opening the internal lens 30, by moving the internal lens 30 in the second movement direction D2 from the closed position of the internal lens 30 shown in the upper part of FIG. 9, the operation arm portion 70 is moved in the second movement direction D2 in the second movement path K2 and introduced into the return movement path K3.

[0072] When the operating arm unit 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 figure of FIG. 9, the tip pin 73 provided at the tip of the arm plate 72 pushes up the inclined guide portion 62 from the lower side. As a result, the tip pin 73 rotates the inclined guide portion 62 around the rotation axis J3 to open the path for moving from the return movement path K3 to the first movement path K1. In this way, the endoscope 30 can be moved in the second movement direction D2 to open the endoscope 30.

[0073] According to the present embodiment, the following effects are achieved. The safety device 10 for the opening / closing device 1 of the present embodiment is a safety device 10 for the opening / closing device 1 capable of opening and closing the opening 20a by the opening / closing movement of the endoscope 30, and includes a deceleration device 80 that decelerates the moving speed of the opening / closing movement of the endoscope 30, and a stopper device 50 that temporarily stops the opening / closing operation of the endoscope 30 decelerated by the deceleration device 80. Therefore, by using the safety device 10 that combines the deceleration device 80 and the stopper device 50, even if the endoscope 30 is enlarged, it is possible to cope with the current deceleration mechanism of the deceleration device 80 without enlarging the deceleration mechanism of the deceleration device 80. As a result, new investment is not required and costs can be reduced. Therefore, the safety device 10 for the opening / closing device 1 can be miniaturized while reducing costs.

[0074] In the present embodiment, when the endoscope 30 is moved toward the deceleration device 80 at a moving speed equal to or higher than the first speed V1, the stopper device 50 receives the load of the endoscope 30 and decelerates the moving speed of the endoscope 30 by the deceleration device 80. When the endoscope 30 is moved toward the deceleration device 80 at a moving speed slower than the first speed V1, the moving speed of the endoscope 30 is not decelerated by the deceleration device 80. As a result, when the endoscope 30 is moved at a normal safe speed slower than the first speed V1, the endoscope 30 can be stably opened and closed without passing through the deceleration mechanism of the deceleration device 80. Since the endoscope 30 can be stably opened and closed without passing through the deceleration mechanism of the deceleration device 80, no extra operating force is required and convenience can be improved.

[0075] In this embodiment, when the intraocular lens 30 decelerated by the deceleration device 80 moves at a moving speed of the second speed V2 or higher, the opening and closing operation of the intraocular lens 30 is temporarily stopped. When the intraocular lens 30 decelerated by the deceleration device 80 moves at a moving speed slower than the second speed V2, the opening and closing operation of the intraocular lens 30 is not stopped. As a result, according to the moving speed of the intraocular lens 30 decelerated by the deceleration device 80, the opening and closing operation of the intraocular lens 30 can be temporarily stopped, so that a finger pinching prevention mechanism can be realized. Therefore, even if the intraocular lens 30 is enlarged, after being decelerated by the deceleration device 80, when the moving speed of the intraocular lens 30 is high, the opening and closing operation of the intraocular lens 30 can be temporarily stopped, improving safety.

[0076] As described above, the preferred embodiments of the present disclosure have been described. However, the present disclosure is not limited to the above-described embodiments and can be appropriately modified.

[0077] For example, in the above embodiment, the case of closing the intraocular lens 30 has been described, but the present disclosure is not limited thereto. For example, the arm plate 72 of the safety device 10 is provided on the hinge side of the intraocular lens 30, and the stopper device main body 60 and the deceleration device 80 of the safety device 10 are provided on the end side of the upper frame 21 of the frame body 20 in the X1 direction on the left and right. It may be used as a safety device when opening the intraocular lens 30 on the X1 side in the left and right directions of the frame body 20.

[0078] In the above embodiment, the door body is constituted by the intraocular lens 30, but the present disclosure is not limited thereto. For example, the door body may be constituted by a door without a frame body and glass. Further, for example, the door body may be constituted by a door.

[0079] By applying it to a door that is electrically opened and closed, such as an automatic door, the opening and closing device of the present disclosure can also be used when the electric part fails and the door is manually opened and closed. Further, the deceleration device 80 can also be applied to an opening and closing device with a soft close that closes gently when opening and closing.

[0080] In the above embodiment, the opening and closing device 1 is constituted by a sliding window, but the present disclosure is not limited thereto. For example, it may be constituted by a single sliding window.

[0081] In the above embodiment, the stopper device main body 60 and the speed reduction device 80 are arranged on the end side on the X2 side in the left-right direction X of the upper frame 21, and the operation arm portion 70 is arranged on the X2 side in the left-right direction X of the inner shutter 30. However, the present invention is not limited to this. For example, the stopper device main body 60 and the speed reduction device 80 may be arranged on the central side in the left-right direction X of the upper frame 21, and the operation arm portion 70 may be arranged at a position corresponding to the stopper device main body 60 and the speed reduction device 80 in the left-right direction X of the inner shutter 30 (for example, the central side in the left-right direction X of the inner shutter 30).

[0082] In the above embodiment, the stopper device main body 60 is attached so as to temporarily stop the inner shutter (door body) at a position where the finger is not pinched. However, the present invention is not limited to this. By adjusting the mounting position of the stopper portion in the left-right direction, the position where the inner shutter is temporarily stopped can be adjusted. Thereby, not only can the pinching of the finger be prevented by adjusting the mounting position of the stopper portion in the left-right direction so that the position where the inner shutter is temporarily stopped is a position where a head or body larger than the finger is not pinched, but also the pinching of the head or body can be prevented.

[0083] Also, as another form in which the stopper device main body 60 is provided at a plurality of locations, for example, by attaching the stopper device main body 60 between the sliding doors of a three - layer or four - layer sliding door, pinching between the sliding doors may be prevented.

[0084] In the above embodiment, the tip - side pin 73 is configured to be rotatable about the central axis as the rotation axis. However, the present invention is not limited to this, and the tip - side pin 73 may be configured not to rotate.

[0085] In the above embodiment, the tip portion 721 of the arm plate 72 is configured to collide with the receiving portion 64. However, the present invention is not limited to this. A roller may be provided at the tip of the arm plate 72, and the roller provided at the tip of the arm plate may be configured to collide with the stopper portion. In this case, the roller provided at the tip of the arm plate 72 may be configured as a pin for guiding the movement of the arm plate 72.

Explanation of Reference Numerals

[0086] 1 Opening and closing device, 10 Safety device, 20a Opening, 30 Inner shutter (door body), 50 Stopper device, 80 Deceleration device, D1 First moving direction

Claims

1. A safety device for an opening / closing device capable of opening and closing an opening by the opening / closing movement of a door body, comprising a speed reduction device for reducing the moving speed of the opening / closing movement of the door body, wherein the speed reduction device includes a stopper device for once stopping the opening / closing operation of the door body decelerated by the speed reduction device, the speed reduction device has a moving part movable in a first moving direction as the door body moves in the first moving direction, and a receiving part that collides with the moving part and receives the load of the door body to decelerate it, when the door body is moving at a moving speed equal to or higher than a second speed even after deceleration by the speed reduction device, the stopper device once stops the opening / closing operation of the door body, when the door body is moving at a moving speed slower than the second speed after deceleration by the speed reduction device, without stopping the opening / closing operation of the door body by the stopper device, a guiding part is provided in front of the receiving part to guide the moving part to fall in a crossing direction crossing the first moving direction of the door body, a safety device for an opening / closing device.

2. When the door body is moved toward the speed reduction device at a moving speed equal to or higher than a first speed, the moving part collides with the receiving part, receives the load of the door body, and the speed reduction device decelerates the moving speed of the door body. When the door body is moved toward the speed reduction device at a moving speed slower than the first speed, the speed reduction device does not decelerate the moving speed of the door body. The safety device for an opening / closing device according to Claim 1.

3. The stopper device has a stopper part for restricting the movement of the receiving part so as to once stop the opening / closing operation of the door body when the moving part collides and the load of the door body is received by the receiving part and moved to a predetermined position. The safety device for an opening / closing device according to Claim 1 or 2.

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