Mounting structure for safety devices for opening and closing mechanisms

Abstract

To provide a mounting structure of a safety device for an opening / closing device capable of suppressing the fall of a frame-side device fixed to an upper frame.SOLUTION: A mounting structure of a safety device 10 for an opening / closing device 1 includes a frame-side device 60 and a mounting section 88 for mounting the frame-side device 60 to an upper frame 21. The upper frame 21 has a horizontal plate section 251 in which a through-opening section 253 is formed, the mounting section 88 has a first hookable section 883 and a second hookable section 884, the first hookable section 883 has a longitudinal protruding section 883c protruding outward in the longitudinal direction on one side in the longitudinal direction of the through-opening section 253, the second hookable section 884 has a pair of width-direction protruding sections 884d protruding outward in both directions intersecting the longitudinal direction on the other side in the longitudinal direction of the through-opening section 253, and the frame-side device 60 is fixed to the upper frame 21 in a state in which the first hookable section 883 and the second hookable section 884 are disposed above the edge of the through-opening section 253 in a hookable state.SELECTED DRAWING: Figure 5

Description

Technical Field

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

Background Art

[0002] Conventionally, a safety device for an opening / closing device provided with a finger pinching prevention mechanism has been known (see, for example, Patent Document 1). The safety device for an opening / closing device described in Patent Document 1 includes a frame-side device attached to a frame and a door-body-side device attached to a door body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a safety device for an opening / closing device, when the frame-side device is screwed and fixed to the lower surface side of the upper frame, if all the screws come out and come off, the frame-side device may fall from the upper frame. Therefore, it is required to be able to suppress the frame-side device fixed to the upper frame from falling.

[0005] An object of the present disclosure is to provide an attachment structure of a safety device for an opening / closing device that can suppress the fall of a frame-side device fixed to an upper frame.

Means for Solving the Problems

[0006] This disclosure relates to a mounting structure for a safety device for an opening and closing device, wherein the opening and closing device is configured to open and close an opening by the opening and closing movement of a door body, the opening and closing device comprises a frame body having an upper frame, and a door body disposed on the frame body, the safety device comprises a frame body side device and a mounting part for attaching the frame body side device to the upper frame, the upper frame has a horizontal plate portion having a through opening that extends in a predetermined direction, the mounting part is provided on the upper part of the frame body side device, and a first hookable portion is disposed on one side in the longitudinal direction of the through opening, with a portion of the first hookable portion disposed on one side in the longitudinal direction of the through opening, and the through opening The present invention relates to a mounting structure for a safety device for an opening and closing device, comprising: a first hookable portion having a second hookable portion positioned on the other side in the longitudinal direction of the opening, the first hookable portion having a longitudinal projection that protrudes outward in the longitudinal direction on one side in the longitudinal direction of the through opening, and a pair of widthwise projections that protrude outward in both directions intersecting the longitudinal direction on the other side in the longitudinal direction of the through opening, wherein the frame-side device is fixed to the upper frame in a state in which the first hookable portion and the second hookable portion are positioned so as to be hooked above the edge of the through opening. [Brief explanation of the drawing]

[0007] [Figure 1] This is a front view of an opening / closing device according to one embodiment, as seen from the outside. [Figure 2] This is a view of the safety device for the switchgear according to this embodiment, as seen from the outside. [Figure 3] This is a view of the safety device for the opening / closing device according to this embodiment, seen from the diagonally upper side on the outdoor side. [Figure 4] This is a cross-sectional view of the safety device body. [Figure 5] This is a view of the safety device body from a diagonal upward angle. [Figure 6] This is a view of the safety device body from a diagonal downward angle. [Figure 7] This diagram shows the opening and closing operation of the inclined guide section when the operating arm section moves along its return path. [Figure 8] This is a side view showing the configuration of the operating arm and collision slider. [Figure 9] This is a perspective view showing the state in which a sliding spacer member is provided on the upper surface of the collision slider. [Figure 10] This is a perspective view of the safety device body, removed from the upper frame, seen from an oblique upward angle. [Figure 11] This is a perspective view of the safety device body, removed from the upper frame, seen from a diagonal downward angle. [Figure 12] This is a disassembled perspective view of the safety device body. [Figure 13] This is a perspective view of the safety device itself. [Figure 14] This is a perspective view of the stopper attached to the top frame, seen from an oblique upward angle. [Figure 15] This is a view from above of the stopper attached to the top frame. [Figure 16] This is a side view of the stopper attached to the top frame. [Figure 17] This is a perspective view of the stopper part, removed from the top frame, seen from an oblique upward angle. [Figure 18] This is a view from above of the stopper section removed from the top frame. [Figure 19] This is a side view of the stopper section removed from the top frame. [Figure 20] There is a diagram showing the spacer fittings and mounting fittings attached to the upper frame. [Figure 21] This diagram illustrates the movement of the inner sliding door in a safety device, where the tip of the arm plate moves downward midway through the movement. [Figure 22] This diagram illustrates the operation of a safety device in which the tip of the arm plate collides with the stopper, causing the inner sliding door to temporarily stop. [Figure 23] This diagram shows the operation of the operating arm in a safety device, returning along its return path. [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 "viewing direction" means the surface direction of the glass in the shoji screen housed in the opening 20a of the frame body 20 arranged in the building, and the "prospective direction" means the thickness direction of the above glass (that is, the depth direction, the indoor-outdoor direction). In the drawings, the outdoor side is described as the outdoor side Y1, and the indoor side is described as the indoor side Y2.

[0009] The opening and closing device 1 of this embodiment is a so-called sliding window. As shown in FIG. 1, it includes a frame body 20, an inner shoji screen 30 (door body) and an outer shoji screen 40 that are fitted into the frame body 20 so as to be openable and closable, 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 shoji screen 30 and the outer shoji screen 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 2, and left and right vertical frames 23, 24. Both the inner shoji screen 30 and the outer shoji screen 40 are sliding doors, and by sliding them in the viewing direction, a so-called sliding window is formed in which the opening 20a of the frame body 20 is opened or closed.

[0011] As shown in FIG. 1, the inner shoji screen 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.

[0012] As shown in FIG. 1, the outer shoji screen 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.

[0013] The safety device 10 will now be described. In this embodiment, the left-right direction in Figure 1 of the opening / closing device 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 sash 30. One side of the opening / closing device 1 in the left-right direction X (the left side in Figure 1) is referred to as the X1 side, and the other side in the left-right direction X (the right side in Figure 1) is referred to as the X2 side. The up-down direction is referred to as the up-down direction Z. The direction in which the inner sash 30 is closed on the X2 side of the frame 20 (the right side in Figure 1) (the direction in which it is moved from the X1 side to the X2 side) is referred to as the first movement direction D1, and the direction in which the inner sash 30 is opened on the X2 side of the frame 20 (the right side in Figure 1) (the direction in which it is moved from the X2 side to the X1 side) is referred to as the second movement direction D2.

[0014] The safety device 10 is equipped with a mechanism to prevent fingers or other objects from being caught in the door. As shown in Figures 1 to 3, the safety device 10 comprises a safety device body 60 (frame-side device) and an operating arm 70 (door-side device). The safety device body 60 is fixed to the end of the upper frame 21 of the frame 20 on the X2 side in the left-right direction X, thereby fixing it to the upper part of the opening 20a on the X2 side in the left-right direction X. The operating arm 70 is fixed to the upper frame 31 of the inner sliding door 30 on the X2 side in the left-right direction X, thereby fixing it to the upper part of the inner sliding door 30 on the X2 side in the left-right direction X. The operating arm 70 moves as the inner sliding door 30 is opened and closed.

[0015] As shown in Figure 1, the operating arm 70 is attached to the upper part of the inner sash 30. The operating arm 70 is positioned on the X2 side in the left-right direction X of the upper frame 31 of the inner sash 30. The operating arm 70 is introduced into the safety device body 60 when the inner sash 30 is moved to the closing side in the left-right direction X2 side. As shown in Figures 2 and 3, the operating arm 70 has an operating-side base member 71, an arm plate 72 (arm member), and a tip-side pin 73 (guide part). The tip of the arm plate 72 is formed in a curved shape with a convex radius that protrudes outward in the longitudinal direction. Details of the operating arm 70 will be described later.

[0016] As shown in Figure 2, the safety device body 60 includes a base member 61, an inclined guide portion 62, a path extending plate 63, and a stopper portion 80. The safety device body 60 also has a first movement path K1 (upstream path), a fall guidance communication portion 64 (guidance portion), a second movement path K2 (downstream path), and a return movement path K3 (return path) as movement paths for the tip portion 721 of the arm plate 72 of the operating arm portion 70. The arm plate 72 of the operating arm portion 70 moves along the first movement path K1 by moving a tip-side pin 73 provided on the tip side of the operating arm portion 70 along the upper surface of the inclined guide portion 62 and the upper surface of the path extending plate 63.

[0017] As shown in Figures 4 to 6, the base member 61 has a top plate 611 (upper component) and a side plate 612. The top plate 611 has a width in the depth direction and extends in the left-right direction X. The side plate 612 extends downward from the end of the top plate 611 on the X1 side in the left-right direction X, on the indoor side Y2 in the depth direction. An inclined guide portion 62 is attached to the outdoor side Y1 surface of the side plate 612.

[0018] The inclined guide section 62 includes a support plate 621 positioned along the outdoor-facing Y1 surface on the X1 side in the left-right direction X of the side plate 612 of the base member 61, and an inclined guide plate 622 that protrudes laterally from the lower end of the support plate 621.

[0019] The inclined guide plate 622 has an inclined plate 622a that inclins from the lower side to the upper side as it moves from the X1 side to the X2 side in the left-right direction X, and a horizontal plate 622b that extends from the X2 side end of the inclined plate 622a toward the X2 side. The support plate 621 is rotatably connected to the side plate 612 of the base member 61 around a rotation axis J3 that extends in the depth direction. A torsion spring 623 (spring member) is attached to the shaft member 621a of the support plate 621.

[0020] As shown in the upper part of Figure 7, the inclined guide section 62 is positioned at the point where the first movement path K1 and the return movement path K3 merge and is biased by a torsion spring 623. When the tip pin 73 of the operating arm section 70 moves along the first movement path K1, it closes the return movement path K3 and forms the first movement path K1. Also, as shown in the lower part of Figure 7, when the tip pin 73 of the operating arm section 70 moves from the return movement path K3 to the first movement path K1, the tip pin 73 pushes the inclined guide section 62 upward from below against the biasing force of the torsion spring 623, rotating the inclined guide section 62 upward around the rotation axis J3 from the closed position, and opening the path for the tip 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 and closing unit that opens and closes the return movement path K3 when the arm plate 72 returns along the return movement path K3, by opening and closing the X1 side in the left-right direction X of the return movement path K3.

[0021] As shown in Figures 4 and 6, the path extension plate 63 is formed as a flat plate that protrudes horizontally from the side plate 612 of the base member 61 toward the outdoor side Y1 in the depth direction. When the inclined guide portion 62 is in the closed position, the upper surface of the path extension plate 63 is on the same plane as the upper surface of the horizontal plate 622b of the inclined guide portion 62. As a result, the tip-side pin 73 of the operating arm portion 70 is movable along the upper surface of the inclined guide portion 62 and the upper surface of the path extension plate 63.

[0022] As shown in Figure 4, the first movement path K1 is a path that passes along the upper side of the inclined guide section 62 and the upper side of the path extending plate 63 to the stopper section 80. The first movement path K1 is a path that allows the tip 721 (movable part) of the arm plate 72 to move in the first movement direction D1 when the tip 721 (movable part) of the arm plate 72 moves toward the stopper section 80.

[0023] The stopper section 80 is positioned on the X2 side of the left-right direction X of the first movement path K1. The stopper section 80 is positioned along the lower surface of the upper plate 611 of the base member 61. The tip 721 of the arm plate 72 collides with the stopper section 80 when the inner sash 30 is moved at a speed exceeding a predetermined speed, thereby temporarily stopping the opening and closing operation of the inner sash 30. The stopper section 80 includes a collision slider 81 (slider section) that is movable in the direction of movement of the tip 721 of the arm plate 72, and a reduction device 85 connected to the collision slider 81 that reduces the movement speed of the inner sash 30.

[0024] A drop guidance communication section 64 (guidance section) is formed at the lower front end of the stopper section 80 on the X1 side in the left-right direction X, and communicates with the second movement path K2. The drop guidance communication section 64 is formed by the gap between the stopper section 80 and the end of the path extending plate 63 on the X2 side in the left-right direction X.

[0025] The second movement path K2 (downstream path) is formed to communicate with the lower part of the X2 side end of the first movement path K1 via a fall guidance communication section 64 formed at the lower part of the X2 side end of the first movement path K1 in the left-right direction X, and extends from below the X2 side end of the first movement path K1 in the left-right direction X to the X2 side. The second movement path K2 is a path through which the tip 721 of the arm plate 72 of the operating arm section 70, guided by the fall guidance communication section 64, can move in the first movement direction D1.

[0026] When the inner sash 30 moves at a predetermined speed or faster, the fall guidance communication unit 64 causes the tip 721 of the arm plate 72 to collide with the collision slider 81 of the stopper unit 80, absorb the impact with the deceleration device 85, temporarily stopping the opening and closing operation of the inner sash 30, and then guides the tip 721 of the arm plate 72 downward (in a crossing direction). When the inner sash 30 moves at a speed slower than the predetermined speed, the fall guidance communication unit 64 guides the tip 721 of the arm plate 72 downward (in a crossing direction) in front of the stopper unit 80 without stopping the opening and closing operation of the inner sash 30.

[0027] The length L in the left-right direction X of the gap in the fall guidance communication section 64 is such that the tip pin 73 can pass through, and the length can be set such that, when the inner sash 30 moves in the first movement direction D1 at a speed of a predetermined speed or higher and the tip pin 73 is introduced into the safety device body 60, the tip 721 of the arm plate 72 can collide with the collision slider 81 of the stopper section 80 before the tip pin 73 falls out of the gap in the fall guidance communication section 64.

[0028] The return movement path K3 is formed by extending 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 is a path that merges with the upstream side of the first movement path K1. The return movement path K3 extends horizontally from the X2 side toward the X1 side in the left-right direction X, passes below the path extension plate 63 and below the inclined guide section 62, and is a path that merges with the upstream side of the first movement path K1.

[0029] As shown in Figure 4, the collision slider 81 is connected to the end of the reduction device 85 on the X1 side in the left-right direction X, so as to be movable in the left-right direction X, at the X2 side end of the first movement path K1 in the left-right direction X. As shown in Figure 6, the collision slider 81 is positioned below the X1 side in the left-right direction X of the upper plate 611 of the base member 61. As shown in Figures 6 and 8, the collision slider 81 has a collision portion 82 formed on the X1 side end in the left-right direction X, and a slide portion 83 formed on the X2 side in the left-right direction X of the collision portion 82.

[0030] The collision portion 82 is formed at the X1 end of the collision slider 81 in the left-right direction X. The collision portion 82 is formed at the X1 end of the plate-shaped slide portion 83, which has thickness in the up-down direction Z, in the left-right direction X. As shown in Figure 8, the collision portion 82 has a collision curved surface portion 821 formed at the X1 end in the left-right direction X, an upper corner arc surface portion 822, and a lower corner arc surface portion 823 (lower corner).

[0031] The collision surface portion 821 is formed in a curved shape that faces diagonally downward on the X1 side in the left-right direction X. When the tip portion 721 of the arm plate 72 collides with the collision surface portion 821 in a side view, the portion that is positioned opposite the tip portion 721 of the arm plate 72 is formed in a curved shape with a concave radius that is recessed diagonally upward on the X2 side in the left-right direction X. The tip of the arm plate 72 that collides with the collision surface portion 821 is formed in a curved shape with a convex radius that is convex outward in the longitudinal direction.

[0032] The portion of the collision surface 821 that the tip 721 of the arm plate 72 collides with constitutes the collision portion 821a. The collision portion 821a is the portion of the stopper portion 80 that is subjected to the load when the tip 721 of the arm plate 72 of the operating arm portion 70 collides with the stopper portion 80.

[0033] When the inner sash 30 is moved in the first movement direction D1 at a predetermined speed or higher, the collision curved surface portion 821 of the arm plate 72 collides with the collision curved surface portion 821 of the collision slider 81 of the stopper portion 80. This collision pushes the collision slider 81 in the first movement direction D1, temporarily stopping the inner sash 30. Subsequently, the tip portion 721 of the arm plate 72 moves smoothly downward via the fall guidance communication portion 64. The end of the arm plate 72 on the X1 side in the left-right direction X is rotatably supported at a position below the collision portion 82.

[0034] Since the collision surface portion 821 is formed in a curved shape with a radius, when the tip portion 721 of the arm plate 72, which is also formed in a curved shape with a radius, collides with the other curved portion, the positions of the collision portion 821a that the tip portion 721 of the arm plate 72 collides with may be slightly shifted, and the collision range is permitted within the range of a predetermined arc of the collision surface portion 821. In this embodiment, the radius of curvature of the radius of the collision surface portion 821 of the collision portion 82 is formed to be larger than the radius of curvature of the tip portion 721 of the arm plate 72. The radius of curvature of the radius of the curved surface of the collision surface portion 821 of the collision portion 82, the orientation of the curved surface, and the length of the arc of the curved surface are set appropriately considering the range of movement of the tip portion 721 of the arm plate 72 and the radius of the curved surface.

[0035] The collision surface portion 821 has an overlay surface portion 821b (overlay portion) on top of it to prevent the tip portion 721 of the arm plate 72 from moving upward when the tip portion 721 of the arm plate 72 collides with it. The overlay surface portion 821b is formed by the upper part of the collision surface portion 821 on the X1 side in the left-right direction X. The overlay surface portion 821b is formed to protrude on the X1 side in the left-right direction X so that it covers the top of the tip portion 721 of the arm plate 72 when the tip portion 721 of the arm plate 72 collides with the collision surface portion 821 of the collision slider 81 of the stopper portion 80. The overlay surface portion 821b restricts the movement of the tip portion 721 of the arm plate 72 upward.

[0036] The upper corner arc surface portion 822 is formed in an arc shape by chamfering the upper corner of the end of the collision slider 81 on the X1 side in the left-right direction X. The lower corner arc surface portion 823 is formed in a curved shape with a radius at the corner of the end of the arm plate 72 on the tip end 721 side of the collision slider 81. By providing the lower corner arc surface portion 823, the tip end 721 of the arm plate 72 that collides with the collision curve surface portion 821 moves along the lower corner arc surface portion 823 when it moves downward via the fall guidance communication portion 64, and thus moves smoothly in the first movement direction D1.

[0037] As shown in Figures 6 and 8, the slide portion 83 is formed continuously with the collision slider 81 on the X2 side in the left-right direction X. The slide portion 83 is formed in a plate shape with a thickness in the vertical direction Z, has a predetermined width in the depth direction, and extends in the left-right direction X.

[0038] A reduction gear 85 is connected to the X2 end of the slide portion 83 in the left-right direction X. The mounting structure of the reduction gear 85 will be described later. As shown in Figure 8, a recess 831 is formed on the upper surface of the slide portion 83 (see Figure 12). A sliding spacer member 84 (spacer member) is placed and fixed in the recess 831, as shown in Figures 8 and 9. The sliding spacer member 84 is positioned between the upper surface of the slide portion 83 and the lower surface of the upper plate 611 of the base member 61. The sliding spacer member 84 is formed in a rectangular shape in plan view and is also formed in a plate shape with a thickness that protrudes upward from the recess 831.

[0039] The sliding spacer member 84 moves while in contact with the lower surface of the upper plate 611 of the base member 61 when the sliding portion 83 moves in the left-right direction X. The sliding spacer member 84 is made of, for example, a resin material. Because the sliding spacer member 84 is made of a resin material, even if an upward impact force is applied to the collision slider 81 when the tip 721 of the arm plate 72 collides with the collision portion 82 of the collision slider 81, the collision noise is reduced by the sliding spacer member 84.

[0040] In this embodiment, the sliding spacer member 84 is made of resin material, and the upper frame 21 is made of aluminum material. By using different materials for the sliding spacer member 84 and the upper frame 21, sliding performance can be improved, whereas if they were made of the same material, they would be less likely to slip against each other. In this embodiment, the sliding spacer member 84 is made of resin material and the upper frame 21 is made of aluminum material, but this is not limited to this. For example, one material may be made of brass, an alloy of copper and zinc, and the other material may be made of aluminum, so that the materials are made of different materials.

[0041] The mounting structure of the safety device body 60 will now be described. As shown in Figure 10, the safety device body 60, with the base member 61, the inclined guide part 62, and the stopper part 80 integrated together, is attached to the upper frame 21 via a damper cover 88 (mounting part) located on the upper part of the safety device body 60, with a spacer member 89 in between. The damper cover 88 attaches the safety device body 60 to the upper frame 21.

[0042] As shown in Figures 10 to 13, the deceleration device 85 of the stopper section 80 is fixed below the upper plate 611 of the base member 61 with a collision slider 81 attached to the end on the X1 side in the left-right direction X. An inclined guide section 62 is attached to the X1 side in the left-right direction X of the base member 61.

[0043] The reduction gear 85 is positioned on the X2 side of the left-right direction X of the stopper portion 80 and absorbs the impact from the collision slider 81 when the tip portion 721 of the arm plate 72 collides with the collision slider 81. As shown in Figures 10 and 12, the reduction gear 85 is fixed to the lower surface of the upper plate 611 of the base member 611 with a portion of it inserted into the base member opening 613 of the upper plate 611 of the base member 61. As shown in Figures 12 and 13, the reduction gear 85 has a damper case 86, two damper portions 87, and a damper cover 88 (mounting portion).

[0044] The two damper sections 87 are housed in a damper case 86. The damper case 86 is formed in a plate shape with thickness in the vertical direction Z, width in the depth direction, and extending in the left-right direction X. As shown in Figure 12, the damper case 86 has two damper housing sections 861 and a collision slider housing section 862 on its upper surface.

[0045] The two damper housings 861 are arranged side by side in the depth direction near the center of the damper case 86, formed in an arc shape that is open at the top and recessed at the bottom, and extending in the left-right direction X. The collision slider housing 862 is formed on the X1 side in the left-right direction X of the damper case 86, with an open top. The collision slider housing 862 has a slider body arrangement recess 862a, a pair of sliding grooves 862b formed on the X2 side in the left-right direction X of the slider body arrangement recess 862a, and a protruding portion 862c arranged between the pair of sliding grooves 862b.

[0046] The collision slider housing 862 houses the collision slider 81. As shown in Figure 12, the sliding portion 83 of the collision slider 81 has a sliding portion body 832, a guide groove 833, and a pair of sliding protrusions 834.

[0047] The guide groove 833 is formed in the lower surface of the X2 side end of the slide body 832 in the left-right direction X, recessed upward and extending in the left-right direction X. The protruding portion 862c of the collision slider housing 862 is positioned in the guide groove 833 so as to be movable in the left-right direction X. The pair of sliding protrusions 834 project from the X2 side end of the slide body 832 in the left-right direction X toward the exterior side Y1 and the interior side Y2 in the depth direction. The pair of sliding protrusions 834 are positioned in the pair of sliding grooves 862b of the collision slider housing 862 formed on the X1 side of the damper case 86 of the reduction gear 85 so as to be movable in the left-right direction X.

[0048] When the tip 721 of the arm plate 72 collides with the collision slider 81, the guide groove 833 and the pair of sliding protrusions 834 of the sliding portion 83 of the collision slider 81 are arranged to be movable in the left-right direction X, thereby configuring the sliding portion 83 of the collision slider 81 to be movable in the left-right direction X.

[0049] The damper portion 87 is housed in the damper housing portion 861 of the damper case 86. The damper portion 87 has a cylindrical buffer portion 871 extending in the left-right direction X, and a rod portion 872 provided at the X1 side end of the buffer portion 871 in the left-right direction X.

[0050] The damper cover 88 is positioned to cover the two damper sections 87 housed in the damper case 86 from above. With the damper cover 88 positioned to cover the two damper sections 87 housed in the damper case 86, it is sandwiched and fixed between the upper plate 611 of the base member 61 and the damper case 86 of the reduction gear 85, as shown in Figure 10.

[0051] As shown in Figure 12, the damper cover 88 includes a top plate portion 881, a pair of side plate portions 882 formed at both ends of the top plate portion 881 in the depth direction, a first extended hookable portion 883 (hookable portion, first hookable portion) formed at the X2 side end of the top plate portion 881 in the left-right direction X, and a second extended hookable portion 884 (hookable portion, second hookable portion) formed at the X1 side end of the top plate portion 881 in the left-right direction X. The top plate portion 881 is formed in a plate shape with thickness in the vertical direction Z and extends horizontally in the left-right direction X.

[0052] Each pair of side plates 882 has a downward-sloping plate 882a that extends a predetermined length downward in the depth direction from the outer end of the top plate 881 in the depth direction, and a bottom plate 882b that extends a predetermined length horizontally from the outer end of the downward-sloping plate 882a in the depth direction.

[0053] When the safety device body 60, which is composed of a base member 61, an inclined guide member 62, and a stopper member 80 integrated into one unit, is attached to the upper frame 21, the first extended hookable portion 883 and the second extended hookable portion 884 are positioned above the edge of the back plate through-opening 253 (through-opening) formed in the back plate 251 of the back plate member 25 which is placed on the upper surface plate 211 of the upper frame 21, in a state that allows them to be hooked onto the edge of the back plate through-opening 253 (through-opening) formed in the back plate 251 of the back plate member 25 which is placed on the upper surface plate 211 of the upper frame 21, as shown in Figure 5.

[0054] As shown in Figures 10 and 12, the first extended hookable portion 883 includes an extended plate 883a that extends from the X2 side end of the upper plate portion 881 in the left-right direction X to the X2 side with a width smaller than the width in the depth direction of the upper plate portion 881, so as to extend the upper plate portion 881; an upward inclined plate 883b (inclined portion) that extends from the X2 side end of the extended plate 883a in the left-right direction X to the X2 side with an upward inclination for a predetermined length; and a pair of longitudinal projection plates 883c (longitudinal projections) that project outward from the X2 side end of the upward inclined plate 883b in the left-right direction X to the X2 side.

[0055] As shown in Figures 4 and 5, the upward-sloping plate 883b extends inclined so as to penetrate the back plate penetration opening 253 of the back plate member 25 from below to above. By providing the upward-sloping plate 883b between the extending plate 883a and the pair of longitudinal projection plates 883c, the pair of longitudinal projection plates 883c are made to protrude upward. This makes it easier to hook the pair of longitudinal projection plates 883c onto the upper frame 21 when the safety device body 60 is attached to the upper frame 21 by positioning them above the edge portion 254a (first edge portion) (described later) on the X2 side in the left-right direction X of the back plate penetration opening 253, and also accommodates the thickness of the spacer member 89 (described later) that is placed between the lower surface of the upper plate 211 of the upper frame 21 and the safety device body 60.

[0056] As shown in Figures 10 and 12, the second extending hookable portion 884 includes an extending plate 884a that extends from the X1 side end of the upper plate portion 881 in the left-right direction X to the X1 side with a width smaller than the depth direction width of the upper plate portion 881, so as to extend the upper plate portion 881; an upward inclined plate 884b (inclined portion) that extends upward inclined for a predetermined length from the X1 side end of the extending plate 884a in the left-right direction X to the X1 side; an upper extending plate 884c that extends upward inclined for a predetermined length from the X1 side end of the upward inclined plate 884b in the left-right direction X to the X1 side; and a pair of width-direction protruding plates 884d (width-direction protrusions) that protrude outward on both sides in the depth direction (direction intersecting the longitudinal direction) at the X1 side end of the upper extending plate 884c in the left-right direction X.

[0057] As shown in Figures 4 and 5, the upward-sloping plate 884b extends inclined so as to penetrate the back plate through-opening 253 of the back plate member 25 from below to above. By providing the upward-sloping plate 884b between the extending plate 884a and the pair of widthwise protruding plates 884d, the pair of widthwise protruding plates 884d are made to protrude upward. This makes it easier to hook the pair of widthwise protruding plates 884d onto the pair of protruding pieces 255a (second edge portion) (described later) on the X1 side in the left-right direction X of the back plate through-opening 253, and also accommodates the thickness of the spacer member 89 (described later) that is placed between the lower surface of the top plate 211 of the upper frame 21 and the safety device body 60.

[0058] When assembling the stopper section 80, as shown in Figure 12, the two damper sections 87 are housed in the two damper housing sections 861 of the damper case 86, and the collision slider 81 with the sliding spacer member 84 attached is housed in the collision slider housing section 862 of the damper case 86. The damper cover 88 is positioned to cover the two damper sections 87 housed in the damper case 86 and is installed by being inserted into the base member opening 613 of the upper plate 611 of the base member 61.

[0059] The structure for attaching the stopper portion 80 to the base member opening 613 of the upper plate 611 of the base member 61 will now be described. The base member opening 613 is an opening that penetrates through in the vertical direction Z on the X2 side in the left-right direction X of the upper plate 611 of the base member 61. The base member opening 613 has a rectangular opening 613a formed on the X2 side in the left-right direction X, which has a width in the depth direction and extends in the left-right direction X, and a narrow opening 613b formed continuously on the X1 side in the left-right direction X of the rectangular opening 613a, which has a narrower width in the depth direction than the rectangular opening 613a.

[0060] When attaching the stopper portion 80 to the base member opening 613 of the upper plate 611 of the base member 61, from the state shown in Figure 12, tilt the damper cover 88 so that the second extended hookable portion 884 side is facing upward, and insert the second extended hookable portion 884 of the damper cover 88 into the rectangular opening 613a of the base member opening 613.

[0061] Then, with the pair of widthwise protruding plates 884d passing through the upper side of the narrow opening 613b of the base member opening 613 at the second extended hookable portion 884, the narrower portions at the base end of the pair of widthwise protruding plates 884d (extending plate 884a, upward inclined plate 884b, and upper extending plate 884c) are moved to the X1 side end of the narrow opening 613b of the base member opening 613, while the damper cover 88 is lifted so that it is horizontal, and the upper plate portion 881 and the second extended hookable portion 884 of the damper cover 88 are inserted into the rectangular opening 613a of the base member opening 613. After that, the damper cover 88 is moved horizontally to the X2 side of the left-right direction X.

[0062] When the stopper portion 80 is attached to the base member opening 613 of the top plate 611 of the base member 61, the damper cover 88 is attached so as to cover the two damper portions 87 housed in the damper case 86, as shown in Figure 10, with a portion of it positioned in the base member opening 613 formed in the top plate 611 of the base member 61. In this state, the damper cover 88 is sandwiched between the top plate 611 of the base member 61 and the damper case 86 of the reduction gear 85. The bottom plate 882b of the side plate portion 882 of the damper cover 88 is positioned below the end portion of the base member opening 613 in the depth direction on the top plate 611 of the base member 61, and is pressed against the top plate 611 of the base member 61 from above.

[0063] With the stopper portion 80 attached to the base member opening 613 of the upper plate 611 of the base member 61, as shown in Figures 10 and 12, the portion of the stopper portion 80 on the X2 side in the left-right direction X is fixed by a screw 611a. The screw 611a penetrates the portion of the upper plate 611 of the base member 61 on the X2 side in the left-right direction X from top to bottom, passes through the gap 883d between the pair of longitudinal projection plates 883c of the first extended hookable portion 883 of the damper cover 88, and is screwed into the upper surface of the portion of the damper case 86 on the X2 side in the left-right direction X. By being fixed in this way by the screw 611a, the safety device body 60 is constructed by integrating the base member 61, the inclined guide portion 62, and the stopper portion 80.

[0064] In this state, as shown in Figure 10, the first extended hookable portion 883, the second extended hookable portion 884, the top plate portion 881, and a part of the side plate portion 882 are inserted into the base member opening 613 and positioned above the top plate 611 of the base member 61. On the X2 side of the left-right direction X of the damper cover 88, a pair of longitudinal projection plates 883c of the first extended hookable portion 883 are positioned above the edge of the end of the rectangular opening 613a of the base member opening 613 on the X2 side of the left-right direction X. On the X1 side of the left-right direction X of the damper cover 88, a pair of widthwise projection plates 884d of the second extended hookable portion 884 are positioned above the edges on both sides in the depth direction of the narrow opening 613b of the base member opening 613.

[0065] As a result, the pair of longitudinal projection plates 883c of the first extended hookable portion 883 are positioned so as to be hooked onto the edge of the end of the rectangular opening 613a on the X2 side in the left-right direction X, and the pair of widthwise projection plates 884d of the second extended hookable portion 884 are positioned so as to be hooked onto the edges on both sides in the depth direction of the narrow opening 613b of the base member opening 613 on the X1 side in the left-right direction X.

[0066] The structure for attaching the safety device body 60, which is composed of a base member 61, an inclined guide section 62, and a stopper section 80 integrated into one unit, to the upper frame 21 will be described.

[0067] In the safety device body 60, which is formed by integrating a base member 61, an inclined guide portion 62, and a stopper portion 80, a damper cover 88 is provided on the upper part of the safety device body 60. When attaching the safety device body 60 to the upper frame 21, a spacer member 89 is placed between the lower surface of the top plate 211 of the upper frame 21 and the safety device body 60, the damper cover 88 is hooked onto the back plate penetration opening 253 of the back plate member 25 of the upper frame 21, and then the safety device body 60 is fixed to the upper frame 21 with screws 60a.

[0068] As shown in Figures 5 and 6, the spacer member 89 is positioned between the lower surface of the upper plate 211 of the upper frame 21 and the safety device body 60 in the safety device body 60, which is formed by integrating the base member 61, the inclined guide portion 62, and the stopper portion 80. The spacer member 89 is formed in a plate shape with thickness in the vertical direction Z and extends in the left-right direction X.

[0069] As shown in Figures 11 and 12, the spacer member 89 has a through-opening 891 of similar size and position to the through-opening 211a formed in the upper plate 211 of the upper frame 21. The through-opening 891 is positioned to avoid any parts that protrude upward from the upper plate 611 of the base member 61 when the spacer member 89 is placed between the upper surface of the upper plate 611 of the base member 61 and the lower surface of the upper plate 211 of the upper frame 21.

[0070] Let me explain why the spacer member 89 is provided. The safety device body 60 is attached to the upper frame 21, and the operating arm 70 is attached to the upper frame 31 of the inner sash 30. Therefore, in order to ensure a good vertical positional relationship between the safety device body 60 and the operating arm 70, the vertical position of the safety device body 60 and the operating arm 70 can be adjusted by providing the spacer member 89, omitting the spacer member 89, or providing a spacer member 89 with an adjusted thickness, depending on the installation of the opening and closing device 1.

[0071] In detail, when the inner sash 30 and outer sash 40 are installed within the frame 20, the system is generally configured to adjust the distance between the frame 20 and the inner sash 30 and outer sash 40 by adjusting the rollers and other components according to the installation. In this embodiment, the positional relationship between the operating arm 70 and the safety device body 60 is important. The operating arm 70, which is positioned on the upper frame 31 of the inner sash 30, and the safety device body 6, which is positioned on the upper frame 21, can be adjusted, for example, so that the lower end of the inclined guide portion 62 does not come into contact with the upper frame 31 of the inner sash 30, and the tip of the arm plate 72 of the operating arm 70 is guided to the inclined guide portion 62 of the safety device body 60.

[0072] As shown in Figure 11, the top plate 211 of the upper frame 21 has a rectangular through-opening 211a that extends in the left-right direction X. A backing plate member 25 with an outer shape larger than the through-opening 211a of the top plate 211 of the upper frame 21 is fixed to the upper surface of the top plate 211 of the upper frame 21. The backing plate member 25 has a plate-shaped backing plate 251 (horizontal plate portion) with a thickness in the vertical direction Z and extending in the left-right direction X, and a downward protruding piece 252 formed at the X2 side end of the backing plate 251 in the left-right direction X.

[0073] As shown in Figure 11, the backing plate member 25 is fixed by screws 25a with its downward protruding piece 252 inserted into a mounting groove 211b formed in the top plate 211 of the upper frame 21. The backing plate 251 has a backing plate through-opening 253 (through-opening) of similar size and position to the through-opening 211a formed in the top plate 211 of the upper frame 21.

[0074] As shown in Figure 10, the back plate through-opening 253 is formed by penetrating through in the vertical direction Z and extending in the left-right direction X. The back plate through-opening 253 has a first opening 254 formed on the X2 side in the left-right direction X and opening in a rectangular shape with a long length in the left-right direction X, and a second opening 256 formed continuously with the first opening 254 on the X1 side in the left-right direction X via a narrow opening 255 and having a shorter length in the left-right direction X than the first opening 254.

[0075] The length of the first opening 254 in the left-right direction X is formed to be longer than the sum of the left-right directions X lengths of the upper plate portion 881 and the first extending hookable portion 883 of the damper cover 88. The length of the second opening 256 in the left-right direction X is formed to be longer than the left-right directions X length of the pair of widthwise protruding plates 884d of the second extending hookable portion 884.

[0076] The first opening 254 and the second opening 256 are formed to have the same width in the depth direction and are connected by a narrow opening 255 which has a smaller width in the depth direction than the first opening 254 and the second opening 256. The narrow opening 255 is narrowed in the depth direction midway along the X1 side of the back plate through opening 253 in the left-right direction X by a pair of protruding pieces 255a that protrude inward in the depth direction from the edges on both sides of the back plate through opening 253 in the depth direction.

[0077] As shown in Figure 10, when attaching the safety device body 60, which is composed of an integrated base member 61, inclined guide portion 62, and stopper portion 80, to the upper frame 21, the safety device body 60, which is composed of an integrated base member 61, inclined guide portion 62, and stopper portion 80, is moved from the lower side to the upper side of the upper plate 211 of the upper frame 21, and fixed to the upper plate 211 of the upper frame 21 with the spacer member 89 interposed.

[0078] In this case, the damper cover 88 is inserted through the through-opening 891 of the spacer member 89, and on the X1 side in the left-right direction X of the damper cover 88, the pair of widthwise protruding plates 884d of the second extended hookable portion 884 of the damper cover 88 are inserted into the second opening 256 of the back plate through-opening 253 of the back plate member 25 of the upper frame 21, and on the X2 side in the left-right direction X of the damper cover 88, the top plate portion 881, the pair of side plate portions 882 and the first extended hookable portion 883 of the damper cover 88 are inserted through the first opening 254 of the back plate through-opening 253 of the back plate member 25 of the upper frame 21.

[0079] Then, by moving the safety device body 60, which is composed of the base member 61, the inclined guide portion 62, and the stopper portion 80 integrated together, to the X2 side in the left-right direction X, as shown in Figure 5, the first extended hookable portion 883 is positioned above the edge portion 254a (first edge portion) on the X2 side in the left-right direction X of the first opening 254 of the back plate penetration opening 253 of the back plate member 25, and the second extended hookable portion 884 is positioned above the pair of protruding pieces 255a (edge ​​portion, second edge portion).

[0080] In this state, on the X2 side in the left-right direction X, the longitudinal projection plate 883c of the first extended hookable portion 883 is positioned above the edge 254a on the X2 side in the left-right direction X of the first opening 254 of the back plate penetration opening 253 of the back plate member 25, and the pair of widthwise projection plates 884d of the second extended hookable portion 884 are positioned above the pair of projection pieces 255a. Therefore, when attaching the safety device body 60 to the upper frame 21, even if you release your hand from the safety device body 60, on the X2 side in the left-right direction X, the first extended hookable portion 883 is hooked onto the edge 254a on the X2 side in the left-right direction X of the first opening 254 of the back plate penetration opening 253 of the back plate member 25, and the second extended hookable portion 884 is hooked onto the pair of projection pieces 255a, so it is in a temporarily placed state.

[0081] Then, with the safety device body 60, which is formed by integrating the base member 61, the inclined guide part 62, and the stopper part 80, temporarily placed in position, the safety device body 60 is fixed to the upper frame 21 with screws 60a, as shown in Figure 10. This makes it easy to fix the safety device body 60 to the upper frame 21. When the safety device body 60 is fixed to the upper frame 21, as shown in Figure 5, a part of the damper cover 88 is positioned in the through opening 891 of the spacer member 89, the first extended hookable part 883 is located above the edge 254a on the X2 side in the left-right direction X of the first opening 254 of the back plate through opening 253 of the back plate member 25 and is in a state where it can be hooked onto the edge 254a, and the second extended hookable part 884 is located above the pair of protruding pieces 255a and is in a state where it can be hooked onto the pair of protruding pieces 255a.

[0082] As a result, the first extended hookable portion 883 is positioned above and away from the edge 254a on the X2 side in the left-right direction X of the first opening 254 of the back plate penetration opening 253 of the back plate member 25, and the second extended hookable portion 884 is positioned above and away from the pair of protruding pieces 255a. Therefore, even if all the screws 60a come loose after the safety device body 60 has been attached to the upper frame 21, the first extended hookable portion 883 can hook onto the edge 254a on the X2 side in the left-right direction X of the first opening 254 of the back plate penetration opening 253 of the back plate member 25, and the second extended hookable portion 884 can hook onto the pair of protruding pieces 255a. Therefore, even if all the screws 60a are removed, the first extended hookable portion 883 will catch on the edge portion 254a on the X2 side in the left-right direction X of the first opening 254 of the back plate penetration opening 253 of the back plate member 25, and the second extended hookable portion 884 will catch on the pair of protruding pieces 255a, thereby preventing the safety device body 60 from falling.

[0083] Furthermore, the first extended hookable portion 883 is positioned on the rear side of the back plate member 25 in the direction of closing the inner sash 30 in the back plate penetration opening 253. The second extended hookable portion 883 is positioned on the front side of the back plate member 25 in the back plate penetration opening 253 in the direction of closing the inner sash 30.

[0084] Therefore, when the tip 721 of the arm plate 72 collides with the safety device body 60, the longitudinal projection plate 883c moves in the direction of closing the inner sash 30, thereby preventing the longitudinal projection plate 883c of the first extended hookable portion 883 from falling off the edge 254a of the back plate penetration opening 253. If, however, the pair of widthwise projection plates 884d that project outward on both sides in directions intersecting the longitudinal direction of the second extended hookable portion 884 are positioned on the back side of the back plate penetration opening 253 of the back plate member 25 in the direction of closing the inner sash 30, there is a possibility that they may fall off from the edge that projects inward in the depth direction midway along the longitudinal direction of the back plate penetration opening 253. Therefore, by positioning the longitudinal projection plate 883c, which protrudes outward in the longitudinal direction of the first extended hookable portion 883, on the inner side in the direction of closing the inner sash 30 in the back plate penetration opening 253 of the back plate member 25, the safety device body 60 can be further prevented from falling.

[0085] The details of the operating arm portion 70 will now be described. As mentioned above, the operating arm portion 70 has an operating-side base member 71, an arm plate 72 (arm member), and a tip-side pin 73 (guide portion), as shown in Figures 2 and 3. The operating-side base member 71 is formed to extend in the left-right direction X, as shown in Figures 2 and 3. The operating-side base member 71 is positioned offset Y1 to the outside of the inclined guide portion 62, and as the inner sash 30 moves in the left-right direction X, it moves in the left-right direction X along the inclined guide portion 62 of the safety device body 60.

[0086] As shown in Figures 14 to 16, the operating base member 71 has a bottom plate 711, a pair of side plates 712, and an L-shaped mounting piece 75. The bottom plate 711 is formed by a plurality of bottom plate members 711a arranged in the left-right direction X with spaces in between. The pair of side plates 712 rise upward from both ends of the plurality of bottom plates 711 in the depth direction.

[0087] The arm plate 72 is formed in the shape of a plate made by stacking multiple long plates and is attached to the operating base member 71. The arm plate 72 is attached to the operating base member 71 at a position offset Y1 to the outside of the inclined guide portion 62, and as the inner sash 30 moves in the left-right direction X, it moves in the left-right direction X along the inclined guide portion 62 of the safety device body 60. The arm plate 72 extends in the left-right direction X before the operating arm portion 70 is introduced into the safety device body 60.

[0088] The arm plate 72 is configured to rotate around the rotation axis J1. As shown in Figure 2, the rotation axis J1 is positioned below the collision portion 82 of the stopper portion 80 when viewed in the direction of the rotation axis J1. As a result, the tip portion 721 of the arm plate 72 is rotatably supported on the rotation axis J1, which is located below the collision portion 82 of the stopper portion 80. The collision portion 82 is the part that the tip portion 721 of the arm plate 72 collides with, and is the part where the load acts when the tip portion 721 of the arm plate 72 collides with the collision portion 82. Therefore, when the tip portion 721 of the arm plate 72 collides with the collision portion 82, the tip portion 721 of the arm plate 72 becomes even less likely to move downward, making it less likely for the tip portion 721 of the arm plate 72 to move upward, and preventing it from hitting the lower surface of the upper plate 611 of the base member 61. Consequently, the reliability of the operation to temporarily stop the inner sliding door 30 can be improved.

[0089] As shown in Figures 14 to 16, the base end of the arm plate 72 is connected to the operating-side base member 71 so as to be rotatable around the rotation axis J1. A tip portion 721 (movable portion) is formed at the tip of the arm plate 72. As shown in Figure 14, a cushioning material 722 is attached to the upper surface of the lower plate 711 below the tip of the arm plate 72. Even if the arm plate 72 falls onto the lower plate 711 from above, it will hit the cushioning material 722, thus reducing the impact noise. In a side view, the tip portion 721 is formed in a curved shape with a convex radius at the tip. A tip-side pin 73 is provided on the tip side of the arm plate 72, projecting inwards towards the interior Y2 in the depth direction.

[0090] The tip pin 73 is formed in a pin shape and protrudes from the indoor side Y2 of the arm plate 72 to the indoor side Y2 at the tip side of the arm plate 72. When viewed in the depth direction, the tip pin 73 is positioned on the base end side of the arm plate 72, on the interior side, rather than the tip portion 721 of the arm plate 72. The tip pin 73 is rotatable about a central axis J2 that extends in the depth direction.

[0091] The tip-side pin 73 is provided on the tip side of the arm plate 72, and when the operating arm portion 70 moves in the first movement direction D1, the arm plate 72 rotates around the rotation axis J1, and is moved along the upper surface of the inclined guide portion 62. In this way, 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 inner sash 30 moves and in the vertical direction Z of the inner sash 30 (the intersecting direction that intersects the first movement direction D1).

[0092] The tip portion 721 of the arm plate 72 is configured to move in the first movement direction D1, which is the direction in which the inner sash 30 moves as the inner sash 30 opens and closes, by having the tip-side pin 73 guided along the upper surface of the inclined guide portion 62. The tip portion 721 of the arm plate 72 is configured to move in the vertical direction Z while drawing an arc around the rotation axis J1 of the arm plate 72.

[0093] As a result, as shown in Figure 2, the tip 721 of the arm plate 72 is configured to be movable in the first movement direction D1, which is the direction in which the inner sash 30 moves as the inner sash 30 opens and closes, and is also movable in the vertical direction Z (a direction intersecting the first movement direction D1) of the inner sash 30. When the tip-side pin 73 is guided downward by the drop-guiding communication part 64, the tip 721 of the arm plate 72 is guided downward by its own weight.

[0094] The mounting structure of the operating arm 70 will now be described. As shown in Figures 14 to 16, the safety device 10 is equipped with a receiving bracket 51 (receiving member) fixed to the upper surface of the upper plate 311 of the upper frame 31, and the operating arm 70 is attached by hooking it onto the receiving bracket 51. The mounting position of the operating arm 70 is restricted by hooking it onto the receiving bracket 51 fixed to the upper surface of the upper plate 311 of the upper frame 31, and the operating arm 70 is fixed to the inner sash 30 by screwing a screw 70a from the X2 side toward the X1 side toward the X1 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X2 side toward the X11 side toward the X2 side toward the X1 side toward the X1 side toward the X2 side toward the X1 side toward the X1 side toward the X1 side toward the X2 side toward the X1 side toward the X1 side toward the X1 side toward the X1 side toward the X1 side toward the X1 side toward the X1 side toward the X1 side toward the X1 side toward the X1 side toward the X1 side toward the X1 side toward the X1 side toward the X1

[0095] The reinforcing member 37 is formed in the shape of a plate with thickness in the left-right direction X, and extends in the depth direction and the up-down direction Z. As shown in Figures 17 and 18, the reinforcing member 37 is positioned along the X2 side surface in the left-right direction X of the inner vertical side panel 341 of the door frame 34. The inner vertical side panel 341 is formed in the shape of a plate with thickness in the left-right direction X on the X1 side of the door frame 34, and extends in the depth direction and the up-down direction Z.

[0096] The reinforcing member 37 reinforces the connection between the door frame 34 (vertical frame) and the upper frame 31 (horizontal frame) of the interior sliding door 30. As shown in Figures 17 and 18, the reinforcing member 37 is fastened together with the inner vertical side plate 341 of the door frame 34 by screws 37a and is fixed to the screw holes 317 (see Figure 20) formed on the X2 side in the left-right direction X of the door frame 34 and the upper frame 31. As a result, the upper end of the door frame 34 of the interior sliding door 30 and the end of the upper frame 31 on the X2 side in the left-right direction X are connected in a reinforced state by the reinforcing member 37.

[0097] When attaching the operating arm 70 to the door frame 34, as shown in Figure 17, the X2 side of the door frame 34 in the left-right direction X is left open so as not to obstruct the movement of the operating arm 70 in the left-right direction X.

[0098] The mounting bracket 51, which is fixed to the upper surface of the upper panel 311 of the upper frame 31, will now be described. As shown in Figures 17 to 20, the mounting bracket 51 is fixed to the upper panel 311 of the upper frame 31 via a spacer bracket 55 (spacer). The spacer bracket 55 is positioned between the upper panel 311 of the upper frame 31 and the mounting bracket 51.

[0099] As shown in Figure 20, the upper frame 31 is formed in a frame shape with a hollow portion 315 and extends in the left-right direction X. The upper frame 31 has an upper plate 311 and an outdoor wall portion 312 that protrudes upward from the outdoor side Y1 end of the upper plate 311. A receiving bracket 51 is fixed to the X2 side end of the upper plate 311 in the left-right direction X via a spacer fitting 55.

[0100] As shown in Figures 17 to 20, the mounting bracket 51 has a base plate portion 52, a hooking projection portion 53 (hooking portion), and a guide extension portion 54. The base plate portion 52 is fixed to the upper surface of the upper plate 311 of the upper frame 31 by screws 51a, with the spacer fitting 55 in between.

[0101] The spacer fitting 55 is formed in a flat shape and is positioned between the upper surface of the top plate 311 of the upper frame 31 and the receiving fitting 51. The receiving fitting 51 is positioned at a distance from the upper surface of the top plate 311 of the upper frame 31 by the thickness of the spacer fitting 55. As a result, the hooking projection 53 is positioned above the upper surface of the top plate 311 of the upper frame 31 by the thickness of the spacer fitting 55, making it easier to hook onto the lower plate 711 of the operating side base member 71 of the operating arm 70.

[0102] The spacer fitting 55 has a rectangular notch 551 at the corner of the outdoor side Y1 end of the X1 end in the left-right direction X. The spacer fitting 55 and the receiving fitting 51 can only be correctly assembled when the protruding piece 521 formed on the base plate 52 is positioned in the notch 551. By aligning the position of the notch 551 of the spacer fitting 55 and the protruding piece 521 of the base plate 52, assembly errors can be prevented.

[0103] The base plate portion 52, the spacer fitting 55, the top plate 311 of the upper frame 31, and the L-shaped back plate member 316 (back plate member), which is located inside the hollow portion 315 of the upper frame 31 and has an L-shaped cross-section extending in the left-right direction X, are fastened together by screws 51a that penetrate from the top to the bottom, thereby fixing the base plate portion 52 to the upper frame 31. At the X1 end of the L-shaped back plate member 316 in the left-right direction X, the top plate 311 of the upper frame 31 and the L-shaped back plate member 316 are fastened together by screws 31a.

[0104] The hooking projection 53 can be used to hook the operating arm 70. The hooking projection 53 has a width in the depth direction on the indoor side Y2 of the base plate 52 and extends a predetermined length from the end on the X2 side in the left-right direction X of the base plate 52 toward the X2 side.

[0105] Since the hooking projection 53 is formed to extend a predetermined length from the end of the base plate portion 52 on the X2 side in the left-right direction X, the operating arm portion 70 can be hooked onto the hooking projection 53 of the receiving bracket 51 by moving the operating arm portion 70 horizontally from the X1 side to the X2 side in the left-right direction X relative to the hooking projection 53 of the receiving bracket 51.

[0106] The hooking projection 53 has a base-side horizontal plate 531 (horizontal portion) that extends horizontally from the base portion 52 to the X2 side in the left-right direction X, and a tip-side upward-sloping piece 532 (sloping portion) that is formed continuously with the base-side horizontal plate 531 on the X2 side in the left-right direction X. The base-side horizontal plate 531 is positioned on the opposite side from the operating arm portion 70. The tip-side upward-sloping piece 532 is positioned on the operating arm portion 70 side. The tip-side upward-sloping piece 532 is formed with an upward slope as it approaches the operating arm portion 70 side, and extends with an upward slope as it moves from the X1 side to the X2 side in the left-right direction X.

[0107] The hooking projection 53 is positioned to hook onto the lower plate 711 of the operating-side base member 71 of the operating arm 70 when the operating arm 70 is attached to the receiving bracket 51. When the operating arm 70 is inserted into the hooking projection 53, the tip-side upward-sloping piece 532 hooks onto the lower plate 711 of the operating-side base member 71 of the operating arm 70. By pushing the operating arm 70 further inward, it is guided by the tip-side upward-sloping piece 532, causing the lower plate 711 of the operating-side base member 71 of the operating arm 70 to enter and hook under the base-side horizontal plate 531. In this way, when the operating arm 70 is moved towards the receiving bracket 51, it is guided by the tip-side upward-sloping piece 532 of the hooking projection 53 and hooked onto the base-side horizontal plate 531.

[0108] The guide extension 54 has a width in the depth direction on the outdoor side Y1 of the base plate 52, is longer than the hook projection 53, and extends a predetermined length from the end of the base plate 52 on the X2 side in the left-right direction X toward the X2 side. A guide edge 54a (guide portion) is formed at the end of the guide extension 54 on the indoor side Y2, extending in the left-right direction X. The guide edge 54a is formed to extend along the direction of movement of the operating arm 70 and guides the movement of the operating arm 70 when the operating arm 70 moves toward the hook projection 53.

[0109] The guide extension 54 has a substrate-side extension 541 that extends horizontally from the substrate 52 to the X2 side in the left-right direction X with a predetermined width in the depth direction, an inclined plate portion 542 that extends downward to the X2 side from the X2 side end of the substrate-side extension 541 with a predetermined width smaller in the depth direction than the substrate-side extension 541, and a tip contact portion 543 that protrudes horizontally to the X2 side from the X2 side end of the inclined plate portion 542.

[0110] The substrate-side extension portion 541 extends horizontally in the left-right direction X2 from the receiving bracket 51, which is positioned upward by the thickness of the plate due to the spacer fitting 55. Therefore, it extends horizontally in the left-right direction X while floating upward from the upper surface of the upper plate 311 of the upper frame 31 by the thickness of the spacer fitting 55.

[0111] The inclined plate portion 542 extends with a downward slope from the X1 side to the X2 side in the left-right direction X. The tip contact portion 543 protrudes horizontally from the X2 side end of the inclined plate portion 542 in the left-right direction X towards the X2 side. The tip contact portion 543 is positioned along the upper surface of the upper plate 311 of the upper frame 31 while in contact with the upper surface of the upper plate 311 of the upper frame 31. By the tip contact portion 543 making horizontal contact with the upper surface of the upper plate 311 of the upper frame 31, the tip of the guide extension portion 54 on the X2 side in the left-right direction X can be stably supported. This allows the guide extension portion 54 to be positioned stably, and the guide edge 54a of the guide extension portion 54 can guide the movement of the operating arm portion 70.

[0112] At the X2 side end of the guide extension 54, a notch 544 is formed on the outdoor side Y1 of the inclined plate portion 542 and the tip contact portion 543, extending in the left-right direction X.

[0113] As shown in Figure 17, the notch 544 is cut out along the left-right direction X of the guide extension 54 at the end of the outdoor side Y1, with a width in the depth direction of a predetermined width, so as to avoid the thick arc-shaped portion 312a at the lower end of the outdoor side wall portion 312 of the upper frame 31. The outdoor side wall portion 312 of the upper frame 31 has a thick arc-shaped portion 312a at its lower end to improve strength. This allows the tip contact portion 543 of the guide extension 54 to be positioned to avoid the thick arc-shaped portion 312a. Therefore, the tip contact portion 543 can be reliably brought into contact with the upper surface of the upper plate 311 of the upper frame 31.

[0114] When the operating arm portion 70 is to be hooked onto the hooking projection portion 53 of the receiving bracket 51, the operating arm portion 70 is moved on the upper surface of the upper plate 311 of the upper frame 31 along the guide edge 54a (guide portion) of the guide extension portion 54 of the receiving bracket 51 toward the hooking projection portion 53. This allows the operating arm portion 70 to be smoothly guided toward the hooking projection portion 53 of the receiving bracket 51. Then, the lower plate 711 on the X2 side in the left-right direction X of the operating arm portion 70 can be easily hooked onto the hooking projection portion 53 of the receiving bracket 51.

[0115] As shown in Figure 16, the operating arm portion 70 is fixed to the inner sash 30 by a screw 70a while hooked onto the hooking projection 53 of the receiving bracket 51. An L-shaped mounting piece 75 is formed at the X2 side of the operating side base member 71 of the operating arm portion 70. The L-shaped mounting piece 75 is connected to the X2 side of the lower plate 711 (described later) of the operating side base member 71 of the operating arm portion 70. The L-shaped mounting piece 75 is formed in an L shape that opens to the X1 side and downward side of the inner sash 30 in the left-right direction X.

[0116] As shown in Figure 17, the L-shaped mounting piece 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 depth direction. The vertical plate 752 extends downward from the X2 side end of the horizontal plate 751 in the left-right direction X and is formed in a plate shape parallel to the depth direction and the up-down direction Z. A slope component 76 is attached to the vertical plate 752 of the L-shaped mounting piece 75.

[0117] As shown in Figures 17 to 19, the slope component 76 includes a bottom plate 761, a vertical wall plate 762 projecting upward from the X2 side end in the left-right direction X on the indoor side Y2 in the depth direction of the bottom plate 761, an inclined plate 763 extending a predetermined length diagonally upward from the upper end of the vertical wall plate 762 on the X1 side in the left-right direction X, a protruding plate 764 projecting from the upper end of the inclined plate 763 on the X1 side in the left-right direction X, and a mounting plate 765 projecting upward from the X1 side end in the left-right direction X on the outdoor side Y1 in the depth direction of the bottom plate 761.

[0118] In this embodiment, as described above, when the inner sash 30 and outer sash 40 are installed within the frame 20, the safety device body 60 is attached to the upper frame 21 via a spacer member 89, depending on the installation. On the other hand, when the inner sash 30 is positioned close to the upper frame 21 due to installation, as shown in Figures 2 and 3, when the operating arm 70 moves, for example, a reinforcing member 37 placed on the end face of the X1 side of the upper frame 31 of the inner sash 30 shown in Figure 14 may collide with the inclined guide portion 62 of the safety device body 60. If a reinforcing member 37 placed on the end face of the X1 side of the upper frame 31 of the inner sash 30 shown in Figure 14 collides with the inclined guide portion 62 of the safety device body 60, the inclined guide portion 62 and the inner sash 30 may be damaged.

[0119] In contrast, in this embodiment, in order to minimize damage to the inclined guide portion 62 and the inner sash 30, a slope component 76 is provided on the end face of the X1 side of the upper frame 31 in the left-right direction X. As a result, even if the distance between the upper frame 21 and the upper frame 31 of the inner sash 30 becomes shorter due to installation or other reasons, and the inclined guide portion 62 of the safety device body 60 is positioned on the lower side, the inclined guide portion 62 can be moved upward along the inclined plate 763 of the slope component 76, thereby minimizing damage to the inclined guide portion 62 and the inner sash 30. In this embodiment, a slope component 76 is provided, but it is not limited to this. It is also possible to not provide a slope component.

[0120] As shown in Figure 17, the operating arm portion 70 and the slope component 76 are fixed to the upper corner of the inner sash 30 on the X2 side in the left-right direction X by a screw 70a. After the operating arm portion 70 is hooked onto the hook projection 53 of the receiving bracket 51, the screw 70a is moved from the outside of the inner sash 30 on the X2 side in the left-right direction X toward the slope component 76, with the mounting plate 765 of the slope component 76 superimposed on the vertical plate 752 of the L-shaped mounting piece 75, and penetrates the mounting plate 765 of the slope component 76, the vertical plate 752 of the L-shaped mounting piece 75, the reinforcing member 37, and the inner vertical side plate 341 of the door frame 34 in this order.

[0121] As a result, the operating arm 70 and the slope component 76 are fixed to the inner sash 30 by fastening together the mounting plate 765 of the slope component 76, the vertical plate 752 of the L-shaped mounting piece 75 of the operating arm 70, the reinforcing member 37, and the inner vertical side plate 341 of the door frame 34 with screws 70a. The screws 70a extend in the horizontal direction along which the upper frame 31 extends. Therefore, with the operating arm 70 hooked onto the hooking projection 53 of the receiving bracket 51, the operating arm 70 can be easily fixed to the inner sash 30 by moving the screws 70a from the outside of the X2 side in the left-right direction X of the upper frame 31 to the X1 side.

[0122] The operating arm 70 described above can be attached to the inner sliding door 30 after it has been installed in the frame 20 using a so-called sliding door method. When installing the inner sliding door 30 into the frame 20 using a sliding door method, the upper end of the inner sliding door 30 is tilted so as to be inserted into the upper frame 21 of the frame 20 from below, and the inner sliding door 30 is gradually raised upwards while being lifted, and then the inner sliding door 30 is lowered downwards.

[0123] After the inner sash 30 is installed inside the frame 20, as shown in Figure 17, the operating arm 70 is moved from the outside of the end on the X2 side in the left-right direction X of the inner sash 30 to the upper end of the inner sash 30 and positioned on the upper side on the X2 side in the left-right direction X of the inner sash 30.

[0124] Then, the operating arm 70 is moved horizontally relative to the hooking projection 53 of the receiving bracket 51, so that the lower plate 711 on the X2 side of the operating arm 70 in the left-right direction X catches on the hooking projection 53 of the receiving bracket 51, thereby moving the operating arm 70 along the upper surface of the upper plate 311 of the upper frame 31. By moving the operating arm 70 from the X2 side to the X1 side in the left-right direction X, it is moved along the guide edge 54a of the guide extension 54. This causes the lower plate 711 on the X2 side of the operating arm 70 in the left-right direction X to catch on the hooking projection 53 of the receiving bracket 51 (hooking process).

[0125] Then, as shown in Figures 17 to 19, the operating arm portion 70 is fixed to the upper part of the inner sash 30 (fixing step). Specifically, with the operating arm portion 70 hooked onto the hooking projection 53 of the receiving bracket 51, the screw 70a is moved from the outside of the X2 side in the left-right direction X of the upper frame 31, from the X2 side to the X1 side, thereby passing the screw 70a through the mounting plate 765 of the slope component 76 (described later), the vertical plate 752 of the L-shaped mounting piece 75 of the operating arm portion 70, the reinforcing member 37, and the inner vertical side plate 341 of the door frame 34 and fastening them together. This makes it easy to fix the operating arm portion 70 to the inner sash 30.

[0126] In this way, since the operating arm 70 can be attached to the inner sliding door 30 after it has been placed inside the frame 20, the operating arm 70 can be easily attached to the inner sliding door 30. Furthermore, during maintenance, the operating arm 70 can be easily replaced without removing the inner sliding door 30 from the frame 20. Thus, the operating arm 70 is detachably fixed to the inner sliding door 30 when the inner sliding door 30 is attached to the opening and closing device 1.

[0127] Next, the operation of the safety device 10 for the opening / closing device 1 of this embodiment will be described. First, as shown in Figures 21 and 20, the case in which the inner sash 30 is moved from the open position to the first movement direction D1 and the inner sash 30 is closed will be described.

[0128] By closing the inner sash 30, the operating arm 70 attached to the inner sash 30 is moved in the first movement direction D1 toward the safety device body 60. As a result, as shown in the upper diagram of Figure 21, the tip 721 of the arm plate 72 of the operating arm 70 is introduced into the safety device body 60. The tip 721 of the arm plate 72 introduced into the safety device body 60 is in a state where it can move vertically in the direction Z while drawing an arc around the rotation axis J1 of the arm plate 72.

[0129] If the inner sash 30 is closed at a speed slower than the predetermined speed, as shown in the upper diagram of Figure 21, the tip 721 of the arm plate 72 of the operating arm 70 introduced into the safety device body 60 moves along the upper surface of the inclined guide 62 in the first movement path K1, with the tip-side pin 73 being guided by the inclined guide 62. Then, as shown in the middle diagram of Figure 21, the tip-side pin 73 falls through the gap in the fall guidance communication part 64, with the tip 721 of the arm plate 72 either not contacting or contacting the collision curved surface part 821, as shown in the lower diagram of Figure 21, into the lower second movement path K2, and the inner sash 30 moves in the first movement direction D1 without stopping. Then, as shown in the lower diagram of Figure 21, the inner sash 30 moves in the first movement direction D1 and is closed.

[0130] A speed slower than the predetermined speed at which the inner sliding door 30 can be closed without stopping means, for example, a speed slower than the speed at which the inner sliding door 30 closes forcefully when being closed. In this embodiment, when the inner sliding door 30 is closed at a speed slower than the predetermined speed, the tip portion 721 of the arm plate 72 does not forcefully collide with the collision curved surface portion 821, and the inner sliding door 30 closes without stopping.

[0131] On the other hand, when the inner sliding door 30 is closed at a speed exceeding a predetermined speed, the tip portion 721 of the arm plate 72 of the operating arm portion 70 introduced into the safety device body 60 moves along the upper surface of the inclined guide portion 62 in the first movement path K1 and collides with the collision portion 82 of the stopper portion 80, as shown in the upper diagram of Figure 22.

[0132] Here, as shown in Figure 8, the tip portion 721 of the arm plate 72 is formed in a curved shape with a convex radius at the tip when viewed from the side, and the collision portion 82 of the stopper portion 80 is formed in a curved shape with a concave radius at the portion that is positioned opposite the tip portion 721 of the arm plate 72 when the tip of the tip portion 721 of the arm plate 72 collides with it when viewed from the side.

[0133] As a result, the tip 721 of the arm plate 72 is guided along the curved portion of the collision part 82 which has a concave radius, so that the tip 721 of the arm plate 72 is prevented from shifting upward and is prevented from hitting the lower surface of the upper plate 611 of the base member 61. Therefore, the inner sash 30 can be stopped temporarily with improved reliability of the operation to temporarily stop the inner sash 30. Furthermore, after the inner sash 30 has been temporarily stopped, the tip 721 of the arm plate 72 is guided along the curved portion of the collision part 82 which has a concave radius, so that the inner sash 30 can be closed smoothly. Thus, in a configuration in which the tip 721 of the arm plate 72 collides with the stopper part 80 and temporarily stops the inner sash 30 when the inner sash 30 is closed faster than a predetermined speed, the reliability of the operation to temporarily stop the inner sash 30 can be improved, and the inner sash 30 can be closed smoothly thereafter.

[0134] In this embodiment, a reduction device 85 is positioned on the X2 side of the collision curved surface portion 821 of the stopper portion 80 in the left-right direction X. Therefore, as shown in the middle diagram of Figure 22, when the tip portion 721 of the arm plate 72 of the operating arm portion 70 collides with and is pushed against the collision portion 821a of the collision curved surface portion 821, the damper portion 87 of the reduction device 85 can absorb the impact acting on the collision portion 82 and mitigate the impact.

[0135] Here, as shown in the middle diagram of Figure 22, the tip 721 of the arm plate 72 is positioned so that the rotation axis J1 of the base end of the arm plate 72 is below the collision portion 82 of the stopper portion 80. Therefore, when the tip 721 of the arm plate 72 collides with the stopper portion 80, it moves to the X2 side of the left-right direction X of the first movement path K1, so that a load acts diagonally upward on the tip 721 of the arm plate 72 while it is in contact with the stopper portion 80. Also, as shown in Figure 8, the overlay curved surface portion 821b provided on the upper front side of the collision curved surface portion 821 restricts the upward movement of the tip 721 of the arm plate 72. As a result, the tip 721 of the arm plate 72 is less likely to fall downward. Therefore, the state in which the tip 721 of the arm plate 72 collides with the stopper portion 80 is easily maintained, and the inner sash 30 is easily stopped.

[0136] Subsequently, as the load acting diagonally upward on the tip 721 of the arm plate 72 while it is in contact with the stopper 80 is relieved, it rotates around the rotation axis J1 at the base end of the arm plate 72 due to its own weight, as shown in the lower diagram of Figure 22. The tip pin 73 falls through the gap in the drop-guiding communication part 64 into the second downward movement path K2. After the tip 721 of the arm plate 72 is guided into the second movement path K2, the damper part 87 of the reduction device 85 returns from its retracted state to its original state. As a result, the stopper 80 returns to its original position. Then, as the tip 721 of the arm plate 72 moves along the second movement path K2, the inner sash 30 is moved in the first movement direction D1 and closed.

[0137] The predetermined speed at which the inner sliding door 30 comes to a temporary stop means, for example, a speed at which the inner sliding door 30 would close forcefully if the safety device 10 were not present. In this embodiment, if the inner sliding door 30 is closed at a speed above the predetermined speed, the tip-side pin 73 collides with the collision curved surface portion 821, which prevents the inner sliding door 30 from forcefully colliding with the vertical frame 24 of the frame body 20, causing the inner sliding door 30 to come to a temporary stop.

[0138] Next, we will explain the case in which the inner sliding door 30 is opened by moving it from the closed position shown in the upper part of Figure 23 to the second movement direction D2 on the X1 side in the left-right direction X.

[0139] When opening the inner sliding door 30, the inner sliding door 30 is moved from the closed position shown in the upper part of Figure 23 to the second movement direction D2. As a result, the operating arm 70 is moved to the second movement direction D2 in the second movement path K2 and introduced into the return movement path K3.

[0140] The operating arm 70, introduced into the return movement path K3, moves along the return movement path K3 and merges with the first movement path K1. When the operating arm 70 moves from the return movement path K3 to the first movement path K1, as shown in the lower part of Figure 23, the tip-side pin 73 provided at the tip of the arm plate 72 contacts the inclined guide portion 62, rotating the inclined guide portion 62 around the rotation axis J3 and pushing it up, thereby opening the path from the return movement path K3 to the first movement path K1. Then, as the operating arm 70 merges into the first movement path K1 and moves in the return direction, the inner sash 30 is moved in the second movement direction D2, and the inner sash 30 can be opened.

[0141] According to this embodiment, the following effects are achieved. The mounting structure of the safety device 10 for the opening / closing device 1 of this embodiment comprises a safety device body 60 and a damper cover 88 for attaching the safety device body 60 to the upper frame 21. The upper frame 21 has a back plate 251 in which a back plate through-opening 253 extending in a predetermined direction is formed. The damper cover 88 has a first extended hookable portion 883 and a second extended hookable portion 884. The first extended hookable portion 883 is on one side in the longitudinal direction of the back plate through-opening 253. The first hookable portion 883c has a longitudinal projection plate 883c that protrudes outward in the longitudinal direction, and the second extended hookable portion 884 has a pair of widthwise projection plates 884d that protrude outward in both directions intersecting the longitudinal direction on the other side of the longitudinal direction of the back plate through opening 253. The safety device body 60 is fixed to the upper frame 21 with the first hookable portion 883 and the second hookable portion 884 positioned so that they can be hooked onto the upper edge of the back plate through opening 253. As a result, the first hookable portion 883 and the second hookable portion 884 are fixed to the upper frame 21 in a position so that they can be hooked onto the upper edge of the back plate through opening 253, thus preventing the safety device body 60 fixed to the upper frame 21 from falling.

[0142] Furthermore, in this embodiment, the longitudinal projection plate 883c is positioned on the rear side in the direction of closing the inner sash 30 in the back plate penetration opening 253, and the pair of widthwise projection plates 884d are positioned on the front side in the direction of closing the inner sash 30 in the back plate penetration opening 253. As a result, the longitudinal projection plate 883c that protrudes outward in the longitudinal direction of the first extended hookable portion 883 is positioned on the rear side in the direction of closing the inner sash 30 in the back plate penetration opening 253 of the back plate member 25. Therefore, when the tip portion 721 of the arm plate 72 collides with the safety device body 60, the longitudinal projection plate 883c moves in the direction of closing the inner sash 30, thereby preventing the longitudinal projection plate 883c of the first extended hookable portion 883 from falling off the edge portion 254a of the back plate penetration opening 253.

[0143] Furthermore, in this embodiment, a spacer member 89 is provided between the lower surface of the backing plate 251 and the safety device body 60. This allows the vertical position of the safety device body 60 and the operating arm 70 to be adjusted according to the installation of the opening / closing device 1 by providing the spacer member 89, not providing the spacer member 89, or providing a spacer member 89 with an adjusted thickness, so that the vertical positional relationship between the safety device body 60 and the operating arm 70 is good.

[0144] Furthermore, in this embodiment, the longitudinal projection plate 883c and the pair of widthwise projection plates 884d are provided at one or the other end of the damper cover 88 via inclined plates 883b, 883b that are inclined to penetrate the back plate through-opening 253 from below to above. This causes the longitudinal projection plate 883c and the pair of widthwise projection plates 884d to protrude upward. Thus, the longitudinal projection plate 883c and the pair of widthwise projection plates 884d can be easily hooked onto the edge portion 254a (first edge portion) or the pair of projection pieces 255a (second edge portion) of the back plate through-opening 253, and can also accommodate the thickness of the spacer member 89 (described later) that is placed between the lower surface of the upper plate 211 of the upper frame 21 and the safety device body 60.

[0145] Furthermore, in this embodiment, with the safety device body 60 attached to the upper frame 21 via the damper cover 88, the longitudinal projection plate 883c is positioned above the edge portion 254a (first edge portion), and the pair of widthwise projection plates 884d are positioned above the pair of projection pieces 255a (second edge portions). This makes it easy to realize a configuration in which the first hookable portion 883 and the second hookable portion 884 can be hooked onto the edge portion of the back plate through-opening 253.

[0146] While preferred embodiments of this disclosure have been described above, this disclosure is not limited to the embodiments described above and can be modified as appropriate.

[0147] For example, the above embodiment described the case of closing the inner sliding door 30, but it 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 sliding door 30, and the safety device body 60 of the safety device 10 may be provided on the X1 side of the upper frame 21 of the frame 20, so that the safety device can be used when opening the inner sliding door 30 on the X1 side of the left-right direction X of the frame 20.

[0148] In the above embodiment, the door body was constructed with an inner shoji screen 30, but it is not limited to this, and the door body may be constructed with a door that does not have a frame and glass. Alternatively, for example, the door body may be constructed with a door.

[0149] By applying this invention to electrically operated doors such as automatic doors, the opening and closing device can be used even when the electric part malfunctions and the door needs to be opened and closed manually. It can also be applied to soft-close opening and closing devices that close slowly when opening or closing.

[0150] In the above embodiment, the opening and closing device 1 was configured as a sliding window, but it is not limited to this, and for example, it may be configured as a single-sliding window.

[0151] In the above embodiment, the safety device body 60 (stopper portion 80) is positioned on the X2 side of the upper frame 21 in the left-right direction X, and the operating arm portion 70 is positioned on the X2 side of the inner sash 30 in the left-right direction X, but the embodiment is not limited to this. For example, the safety device body 60 (stopper portion 80) may be positioned on the central side of the upper frame 21 in the left-right direction X, and the operating arm portion 70 may be positioned on the inner sash 30 at a position corresponding to the safety device body 60 (stopper portion 80) in the left-right direction X (for example, on the central side of the inner sash 30 in the left-right direction X).

[0152] In the above embodiment, by providing one safety device body 60 (stopper portion 80), the position in the left-right direction X where the inner sliding door (door body) temporarily stops is limited to one location, but the system is not limited to this. The safety device body 60 (stopper portion 80) may be provided at multiple locations in the left-right direction X, so that the inner sliding door 30 can be temporarily stopped at multiple positions in the left-right direction X.

[0153] Furthermore, as another form of providing the safety device body 60 (stopper part 80) in multiple locations, for example, the safety device body 60 (stopper part 80) can be installed between three-panel or four-panel sliding doors to prevent fingers from getting caught between the sliding doors.

[0154] In the above embodiment, the tip pin 73 is configured to be rotatable with respect to its central axis, but the invention is not limited to this, and the tip pin 73 may be configured not to rotate.

[0155] In the above embodiment, the tip 721 of the arm plate 72 is configured to collide with the stopper portion 80, but the embodiment 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 that guides the movement of the arm plate 72. [Explanation of Symbols]

[0156] 1 Opening / closing device, 10 Safety device, 20 Frame, 20a Opening, 21 Upper frame, 30 Inner sash (door body), 60 Safety device body (frame side device), 88 Damper cover (mounting part), 89 Spacer member, 251 Backing plate (horizontal plate part), 253 Backing plate through opening (through opening), 254a Edge (first edge), 255a Projecting piece (second edge), 883 First extended hookable part (first hookable part), 883b Inclined plate (inclined part), 883c Longitudinal projection plate (longitudinal projection), 884 Second extended hookable part (second hookable part), 884b Inclined plate (inclined part), 884d Widthwise projection plate (widthwise projection)

Claims

1. A mounting structure for a safety device for an opening and closing device, The aforementioned opening and closing device is configured to open and close the opening by moving the door body, The opening and closing device comprises a frame having an upper frame and a door body disposed on the frame, The safety device comprises a frame-side device and a mounting portion for attaching the frame-side device to the upper frame. The upper frame has a horizontal plate portion in which a through opening extending in a predetermined direction is formed, The mounting portion is provided on the upper part of the frame-side device and, with a portion of it positioned in the through-opening, has a first hookable portion positioned on one side in the longitudinal direction of the through-opening and a second hookable portion positioned on the other side in the longitudinal direction of the through-opening. The first hookable portion has a longitudinal projection that protrudes outward in the longitudinal direction on one side in the longitudinal direction of the through opening, The second hookable portion has a pair of widthwise protrusions that project outward in both directions intersecting the longitudinal direction on the other side of the longitudinal direction of the through opening, The frame-side device is a mounting structure for a safety device for an opening and closing device, in which the first hookable portion and the second hookable portion are positioned so as to be hooked above the edge of the through-opening, and are fixed to the upper frame.

2. The longitudinal projection is positioned on the inner side of the through-opening in the direction in which the door body is closed. The mounting structure for a safety device for an opening and closing device according to claim 1, wherein the pair of widthwise protrusions are arranged on the front side in the direction of closing the door body in the through opening.

3. A mounting structure for a safety device for an opening / closing device according to claim 1 or 2, comprising a spacer member disposed between the lower surface of the horizontal plate portion and the frame-side device.

4. The mounting structure for a safety device for an opening and closing device according to claim 1 or 2, wherein the longitudinal projection and the pair of widthwise projections are each provided at one or the other end of the mounting portion via inclined portions that penetrate the through opening from below to above.

5. The horizontal plate portion has a first edge portion formed on one edge in the longitudinal direction of the through opening, and a second edge portion formed projecting inward from the through opening at a point in the longitudinal direction of the through opening. In a state in which the frame-side device is attached to the upper frame via the mounting portion, the longitudinal projection is positioned above the first edge, and the pair of widthwise projections are positioned above the second edge, as described in claim 1 or 2, mounting structure for a safety device for an opening and closing device.

Images