Fixture

Abstract

To provide a fixture provided with both of a sliding door falling prevention function and a sliding door operation assistance function.SOLUTION: A fixture comprises: each sliding door moving by being guided by a frame; and a falling prevention member fitted to the upper part of each sliding door and preventing the falling of each sliding door from the frame by being engaged with an upper frame of the frame. The fixture comprises an assistance mechanism having a sliding door side member fitted to the upper part of each sliding door and a frame side member fitted to the upper frame, for assisting the opening / closing operation of each sliding door by the engagement of the sliding door side member and the frame side member. An interference prevention part for avoiding interference with the frame side member upon the movement of each sliding door is formed at the falling prevention member.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a fitting that includes a sliding door that moves while being guided by a frame and a fall prevention member that prevents the sliding door from falling off the frame. [Background technology]

[0002] Conventionally, fittings have been known that include a sliding door that moves while being guided by a frame and a fall prevention member (detachment prevention tool) that prevents the sliding door from falling off the frame (see, for example, Patent Document 1). In this fitting, the upper rail along which the sliding door is guided is formed from a channel-shaped extrusion, has an opening that is open downward and runs along the longitudinal direction, and has a groove above the opening that has a space wider than the width of the opening. The sliding door has a fall prevention member attached to the in-plane end of the upper part, and is configured so that the upper part, together with the fall prevention member, is inserted into the opening and moves along the upper rail. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-19627 Summary of the Invention [Problem to be solved by the invention]

[0004] Some fittings with sliding doors are equipped with an auxiliary mechanism to assist the opening and closing of the sliding door, such as a speed suppression mechanism to slow down the door's speed. Such an auxiliary mechanism is placed inside the upper rail so as not to be exposed to the outside. Therefore, when the fall-prevention member is placed inside the upper rail as in the conventional fittings described above, there is a problem in that an auxiliary mechanism cannot be provided.

[0005] The present invention has been made in view of the above-mentioned problems, and its object is to provide a fitting that has both a function to prevent a sliding door from falling off and a function to assist the operation of the sliding door. [Means for solving the problem]

[0006] The main invention for achieving this object is a fitting comprising a sliding door that moves while being guided by a frame, and a fall prevention member that is attached to the top of the sliding door and engages with an upper frame of the frame to prevent the sliding door from falling off the frame, the fitting comprising a sliding door side member that is attached to the top of the sliding door and a frame side member that is attached to the upper frame, and an assisting mechanism that engages with the sliding door side member and the frame side member to assist the opening and closing operation of the sliding door, and the fall prevention member is formed with an interference prevention part that avoids interference with the frame side member when the sliding door moves. Other features of the present invention will become apparent from the description of this specification and the accompanying drawings. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a fitting that has both a function to prevent a sliding door from falling off and a function to assist the operation of the sliding door. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a vertical cross-sectional view of the fitting according to the present embodiment, seen from the door end side. [Figure 2] A vertical cross-sectional view showing the upper and lower frames from the door end side. [Figure 3] This is a vertical cross-sectional view of the upper part of the fitting cut along the in-plane direction of the sliding door. [Figure 4] FIG. [Figure 5] A view of the anti-fall-off member and frame side member from the door edge side. [Figure 6] FIG. 10 is a diagram showing an example in which a brake mechanism is provided. [Figure 7] FIG. 7(a) is a diagram showing the configuration of a modified example of a fall-off prevention member, and FIG. 7(b) is a view seen from the arrow A in FIG. 7(a). DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a fitting according to one embodiment of the present invention will be described with reference to the drawings. As shown in Figure 1, the fitting 1 according to this embodiment has two sliding doors 2, which form an outer and inner shoji screen, and an upper frame 30 and a lower frame 31 which form a frame 3 attached to a building or the like and guide the sliding doors 2. The upper part of the sliding door 2 is inserted into a recess 30a recessed upward in the upper frame 30, and is supported by a rail 31a attached to the lower frame 31, allowing it to move in the longitudinal direction of the upper frame 30 and lower frame 31.

[0010] The fitting 1 is provided with a soft-close mechanism 4 at the top as an auxiliary mechanism that assists the opening and closing of the sliding door 2. The soft-close mechanism 4 has a frame side member 40 attached to the upper frame 30 and a sliding door side member 41 attached to the sliding door 2. Details of the soft-close mechanism 4 will be described later.

[0011] As shown in Figure 2, the upper frame 30 has two recesses 30a arranged in the longitudinal direction, each of which guides one of the two sliding doors 2. The upper frame 30 has an indoor plate portion 30b that forms a vertical surface located on the indoor side, an outdoor plate portion 30c that forms an edge surface located on the outdoor side, and a central plate portion 30d that forms a vertical surface between the indoor plate portion 30b and the outdoor plate portion 30c, and the upper ends of the indoor plate portion 30b, the outdoor plate portion 30c, and the central plate portion 30d are connected by an upper plate portion 30e.

[0012] The indoor plate 30b and the central plate 30d are spaced apart in the projection direction, forming an indoor-side recess 30a that recesses upward between them, and the outdoor-side recess 30a that recesses upward between the outdoor plate 30c and the central plate 30d, which are also spaced apart in the projection direction. The lower ends of the indoor plate 30b and the central plate 30d, and the outdoor plate 30c and the central plate 30d, are provided with protrusions 30f that protrude toward each other. That is, the lower ends of the recesses 30a form narrow slits 30g in the projection direction due to the protrusions 30f, and the recesses 30a communicate with the space below through the slits 30g.

[0013] As shown in Figure 3, a frame side member 40 of the soft-close mechanism 4 is provided on the end side of each recess 30a in the longitudinal direction, which is the door tip side of each sliding door 2. The frame side member 40 has a width in the front direction narrower than the width of the recess 30a in the front direction, is positioned approximately in the center of the recess 30a in the front direction, and is attached to the upper plate 30e so as to protrude downward from the upper plate 30e. Therefore, the frame side member 40 is positioned with a gap in the front direction from the indoor plate 30b, the outdoor plate 30c, and the center plate 30d.

[0014] Each sliding door 2 is a panel-like structure thinner than the width of the slit 30g in the projection direction, and its upper part is inserted into the recess 30a through the slit 30g and moves in the longitudinal direction. Since the sliding doors 2 for the inner and outer shoji screens are the same, the sliding door 2 for the inner shoji screen will be used as an example for explanation.

[0015] The sliding door 2 has anti-fall members 5 attached to both ends of the upper end in the direction of movement (i.e., the longitudinal direction of the upper frame 30) to prevent the sliding door 2 from falling off the frame 3, and the sliding door side member 41 of the soft close mechanism 4 is attached to the door tail side of the anti-fall member 5 on the door front side.

[0016] As shown in Figures 3 and 4, the upper end of the sliding door 2 has a groove portion 2a that extends downward along the in-plane direction of the recess, and at both ends in the movement direction, there are provided anti-fall-off member mounting portions 2b that are connected to the groove portion 2a and that accommodate anti-fall-off members 5.

[0017] The anti-fall member 5 has an approximately rectangular parallelepiped mounting portion 5a, upward extension portions 5b extending upward from the indoor and outdoor ends of the mounting portion 5a, and prospective extension portions 5c extending from the upper ends of each upward extension portion 5b on the side opposite to the opposing sides.

[0018] Mounting portion 5a forms fall prevention member mounting portion 2b on sliding door 2, and is housed between two opposing indoor and outdoor plate portions 2c and 2d that are spaced apart in the forward direction. The width of mounting portion 5a in the forward direction is formed to be narrower than the distance between indoor and outdoor plate portions 2c and 2d, and while housed in fall prevention member mounting portion 2b, it is attached to sliding door 2 with shoulder screws 6 that enter from the door edge side.

[0019] As shown in Figures 3 and 5, the mounting portion 5a is provided with a mounting hole 5d through which a shoulder screw 6 is inserted. The mounting hole 5d is an elongated hole that is long in the projection direction, and on the door-edge side is a head-receiving hole 5e through which the head 6a of the shoulder screw 6 can be inserted, and on the door-edge side is an insertion hole 5f that is smaller than the door-edge side and through which the threaded portion 6b of the shoulder screw 6 and the unthreaded step portion 6c can be inserted. Therefore, the fall-off prevention member 5 attached with the shoulder screw 6 inserted into the mounting hole 5d can move in the projection direction within the range of the gap between the insertion hole 5f, which is an elongated hole that is long in the projection direction, and the step portion 6c inserted into the insertion hole 5f, and its position in the projection direction relative to the sliding door 2 can be adjusted.

[0020] The fall prevention member 5, whose mounting portion 5a is attached to the sliding door 2, is arranged so that its two upward extensions 5b face the indoor plate portion 2c or the outdoor plate portion 2d that form the fall prevention member mounting portion 2b, respectively, and the projecting extensions 5c are arranged so that they protrude from above the indoor plate portion 2c and the outdoor plate portion 2d toward the indoor side or the outdoor side, respectively. The door-front edge of the fall prevention member 5 housed in the fall prevention member mounting portion 2b and the door-front edge of the sliding door 2 are generally flush with each other, and the upper surface of the projecting extensions 5c is generally flush with the upper edge of the sliding door 2.

[0021] The width W1 from the indoor end of the indoor-side projection extension 5c to the outdoor end of the outdoor-side projection extension 5c is narrower than the projection width W2 of the recess 30a and wider than the projection distance W3 of the slits 30g. Therefore, the fall-prevention member 5 is attached to the sliding door 2 after the upper end of the sliding door 2 is inserted into the recess 30a of the upper frame 30, for example, using a push-in mechanism, and supported by the rail 31a of the lower frame 31. After the fall-prevention member 5 is attached to the sliding door 2, when the upper end of the sliding door 2 is about to come out of the recess 30a, the projection extension 5c engages with the protrusion 30f, so the upper end of the sliding door 2 cannot pass through the slit 30g and does not come out of the recess 30a, thereby preventing the sliding door 2 from falling out.

[0022] As shown in Figure 3, the sliding door side member 41 of the soft-close mechanism 4 is housed in a case 41a and attached to the groove 2a. The sliding door side member 41 has a hook member 41c that swings around an axis 41b along the projection direction and is movable in the direction of movement of the sliding door 2, a damper 41d that acts as a brake when the hook member 41c moves toward the door tail and expands and contracts in the movement direction, and a tension spring 41e that is provided between the hook member 41c and the case 41a.

[0023] In the soft-close mechanism 4, when the sliding door 2 is open, the hook member 41c is located at the tip of the extended damper 41d, and the hook member 41c and the sliding door 2 to which the case 41a is fixed are pulled by the tension spring 41e. The hook member 41c moves in the moving direction of the sliding door 2, with the shaft 41b guided by a guide (not shown) formed on the case 41a.

[0024] When the sliding door 2 moves from an open state in the closing direction, the frame side member 40 attached to the upper frame 30 passes through the gap S formed between a pair of upward extension portions 5b that extend upward from the indoor and outdoor ends of the mounting portion 5a of the fall-off prevention member 5 provided on the door tip side, and engages with the hook member 41c of the sliding door side member 41. At this time, the hook member 41c is pressed by the frame side member 40, swings, and is locked by the frame side member 40.

[0025] When the sliding door 2 further moves in the closing direction, the damper 41d expands and contracts, slowing down the speed of the sliding door. In other words, the soft-close mechanism 4 also functions as a suppression mechanism that suppresses the speed of the sliding door 2. At this time, the hook members 41c engaged with the frame side members 40 pull the sliding door 2 toward the door edge, slowing the sliding door 2 as the door edge abuts against the vertical frame and closes. Here, the gap S formed between the pair of upward extension portions 5b extending upward from the indoor and outdoor ends of the mounting portion 5a of the fall-prevention member 5 is formed in the fall-prevention member 5 and corresponds to an interference prevention portion that prevents interference with the frame side members 40 when the sliding door 2 moves.

[0026] According to the fitting 1 of this embodiment, the fall prevention member 5 attached to the top of the sliding door 2 and engaging with the protrusion 30f of the upper frame 30 has a gap S that forms an interference prevention portion, so when the sliding door 2 moves, the frame side member 40 attached to the upper frame 30 in the soft close mechanism 4 serving as an auxiliary mechanism does not interfere with the fall prevention member 5. Therefore, even if the sliding door 2 is equipped with the fall prevention member 5 and the sliding door side member 41, the sliding door 2 can move and engage the sliding door side member 41 with the frame side member 40. Therefore, it is possible to provide a fitting 1 that has both a function to prevent the sliding door 2 from falling off and a function to assist the operation of the sliding door 2.

[0027] Furthermore, the fall-prevention member 5 is positioned closer to the door edge than the sliding door side member 41. In other words, by positioning the fall-prevention member 5 closer to the door edge, the work of attaching the fall-prevention member 5 after attaching it to the frame 3 becomes easier. Furthermore, the sliding door side member 41 can be provided using a wider area closer to the door end than the fall-prevention member 5, so there is a high degree of freedom in the configuration and attachment of the sliding door side member 41, and it is easy to design and manufacture.

[0028] Furthermore, the soft-close mechanism 4 can suppress the speed of the sliding door, making it possible to prevent the sliding door 2 from colliding with the frame 3 when closing.

[0029] Furthermore, the fall-prevention member 5 has a projection extension 5c that faces the upper frame 30 in the projection direction. Therefore, for example, since the fall-prevention member 5 is attached so as to be movable in the projection direction, when the fall-prevention member 5 and the upper frame 30 come into contact with each other, it is possible to reduce the load when the sliding door 2 moves by adjusting the position of the fall-prevention member 5 in the projection direction.

[0030] In the above embodiment, an example has been described in which the soft-close mechanism 4 having a speed suppression function that suppresses the speed of the sliding door 2 is provided as an assisting mechanism for assisting the opening and closing operation of the sliding door 2, but the assisting mechanism is not limited to this. For example, as shown in Fig. 6, a brake mechanism 7 that slows down the speed of the sliding door 2 when it is closed may be provided.

[0031] The brake mechanism 7 has, for example, a frame side member 70 attached to the upper frame 30, and a sliding door side member 71 attached to the sliding door 2. The frame side member 70 has a width in the projection direction that is narrower than the width in the projection direction of the groove 2a provided in the upper part of the sliding door 2, is positioned approximately in the center of the recess 30a in the projection direction, and is attached to the upper plate 30e so as to protrude downward from the upper plate 30e. The sliding door side member 71 is provided in the groove 2a at the upper part of the sliding door 2, and is attached to the door trailing side of the fall-off prevention member 5 on the door leading side.

[0032] The brake mechanism 7 is configured so that when the sliding door 2 moves from an open state to a closing direction, the frame side member 70 attached to the upper frame 30 passes through the gap S between a pair of upward extension portions 5b extending upward from the indoor and outdoor ends of the mounting portion 5a of the anti-fall-off member 5 provided on the door tip side, and engages with the sliding door side member 71, and the frame side member 70 and the sliding door side member 71 slide against each other as the sliding door 2 moves, thereby reducing the speed of the sliding door 2.

[0033] In the above embodiment, an example has been described in which the fall-prevention member 5 is attached to the sliding door 2 by the shoulder screw 6, but the present invention is not limited to this. For example, as shown in Fig. 7, the fall-prevention member 8 may have a fixing bracket 80 that is fixed to the sliding door 2 and a main body 81 that is engaged with the fixing bracket 80.

[0034] In this case, the fixing bracket 80 is accommodated in the anti-fall-off member mounting portion 2b of the sliding door 2 and fixed to the sliding door, and has a hook piece 80a that protrudes from the underside of the anti-fall-off member mounting portion 2b and extends toward the door edge, and an opposing piece portion 80b that faces the hook piece 80a with a gap in the vertical direction, and the main body portion 81 has a mounting portion 81a, a pair of upward extension portions 81b and a recessed extension portion 81c, similar to the anti-fall-off member 5 described above, and a gap S is provided between the pair of upward extension portions 81b.

[0035] The mounting portion 81a of the main body 81 has a rectangular opening 81d that penetrates in the direction of movement, a lower extension 81f that extends downward from the edge of the door trailing edge of the upper plate 81e located above the opening 81d, and extends to approximately the center of the opening 81d, and has a central extension 81g that extends from the lower end of the lower extension 81f toward the door leading edge. A protrusion 81h that protrudes downward is provided on the underside of the central extension 81g.

[0036] The fall-prevention member 8 is attached by inserting the main body 81 into the fall-prevention member mounting portion 2b from the door-edge side with the fixing bracket 80 fixed to the fall-prevention member mounting portion 2b, and locking the protrusion 81h with the hook piece 80a. At this time, the facing piece 80b of the fixing bracket 80 is inserted onto the upper plate portion 81e, the central extension 81g is pushed up by the hook piece 80a and elastically deformed, and the protrusion 81h climbs over the hook piece 80a and locks with it, so that the main body 81 is clamped between the hook piece 80a and the facing piece 80b and attached.

[0037] As shown in Figure 7(b), the forward width W4 of the hook piece 80a is narrower than the forward width W5 of the opening 81d into which it is inserted, and the forward width W6 of the opposing piece 80b is narrower than the forward width W7 of the gap S formed between the pair of inserted upward extension portions 81b, so the forward position of the anti-fall-off member 8 attached to the sliding door 2 can also be adjusted.

[0038] The above-described embodiments are provided to facilitate understanding of the present invention and are not intended to limit the present invention. The present invention may be modified or improved without departing from the spirit thereof, and the present invention includes equivalents thereof.

[0039] The present embodiment includes at least the following inventions. (Aspect 1) A fixture comprising a sliding door that moves while being guided by a frame, and a fall prevention member that is attached to the top of the sliding door and engages with an upper frame of the frame to prevent the sliding door from falling off the frame, wherein the fixture has a sliding door side member that is attached to the top of the sliding door and a frame side member that is attached to the upper frame, and is equipped with an assisting mechanism whereby the sliding door side member and the frame side member engage with each other to assist the opening and closing operation of the sliding door, and the fall prevention member is formed with an interference prevention part that avoids interference with the frame side member when the sliding door moves.

[0040] According to the fitting of Aspect 1, the fall-prevention member attached to the top of the sliding door and engaging with the upper frame is formed with an interference prevention portion, so when the sliding door moves, the frame-side member of the auxiliary mechanism and the fall-prevention member do not interfere with each other. Therefore, even if the sliding door is equipped with a fall-prevention member and a sliding-door-side member, the sliding door can move and engage with the sliding-door-side member and the frame-side member. This makes it possible to provide a fitting that has both the function of preventing the sliding door from falling off and the function of assisting the operation of the sliding door.

[0041] (Aspect 2) The fitting according to aspect 2 is characterized in that the fall-off prevention member is disposed closer to the door tip than the sliding door side member.

[0042] According to the fitting of aspect 2, the fall-prevention member is positioned closer to the door edge than the sliding door member. In other words, since the fall-prevention member can be positioned closer to the door edge, it can be easily attached to a sliding door that is attached using a locking mechanism or the like. In addition, since the sliding door member can be provided using a wider area closer to the door end than the fall-prevention member, there is a high degree of freedom in the configuration and attachment of the sliding door member, and it is easy to design and manufacture.

[0043] (Aspect 3) The fitting according to aspect 1 or aspect 2 is characterized in that the auxiliary mechanism is a speed suppression mechanism that suppresses the speed of the sliding door.

[0044] According to the fitting of aspect 3, the speed of the sliding door can be controlled by the control mechanism, so it is possible to prevent the sliding door from colliding with the frame when closing.

[0045] (Aspect 4) A fixture described in any one of aspects 1 to 3, characterized in that the anti-fall-off member has a portion that faces the upper frame in the projection direction and is capable of adjusting its position in the projection direction.

[0046] According to the fixture of aspect 4, the anti-fall-off member has a portion that faces the upper frame in the projected direction, so if, for example, the sliding door or upper frame is warped or twisted, the anti-fall-off member and the upper frame may come into contact, which may cause a load when the sliding door moves.However, because the position of the anti-fall-off member can be adjusted in the projected direction, by adjusting the relative position between the anti-fall-off member and the upper frame, it is possible to prevent the anti-fall-off member and the upper frame from coming into contact, and allow the sliding door to move smoothly. [Explanation of symbols]

[0047] 1. Doors, 2. Sliding doors, 3. Frames, 4 Soft close mechanism (auxiliary mechanism, speed control mechanism), 5 Fall prevention member, 7 Brake mechanism (auxiliary mechanism, speed suppression mechanism), 8 Fall prevention member, 30 Upper frame, 40 Frame side member, 41 Sliding door side member, 70 frame side member, 71 sliding door side member, S gap (interference prevention part),

Claims

1. A sliding door that moves along a frame, a fall prevention member attached to an upper portion of the sliding door and engaging with an upper frame of the frame to prevent the sliding door from falling off from the frame; A fixture comprising: The sliding door has a sliding door side member attached to an upper portion of the sliding door and a frame side member attached to the upper frame, and the sliding door side member and the frame side member engage with each other to assist in opening and closing the sliding door, The fitting is characterized in that the anti-fall-off member is formed with an interference prevention portion that prevents interference with the frame side member when the sliding door moves.

2. The fitting according to claim 1, The anti-fall-off member is positioned closer to the door tip than the sliding door side member.

3. The fitting according to claim 1 or claim 2, The auxiliary mechanism is a speed control mechanism that controls the speed of the sliding door.

4. The fitting according to claim 1 or claim 2, The fall-off prevention member has a portion facing the upper frame in a prospective direction, A fixture characterized by its adjustable position in the forward direction.

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