Building materials

Abstract

To provide a fitting capable of preventing floating of a sliding door sash even when an impact force is applied to the sliding door sash.SOLUTION: A fitting includes a sliding door sash 1a and a coming-off preventive part 2 provided on the upper part of the sliding door sash 1a, in which the coming-off preventive part 2 has a sliding member 3 provided so as to be vertically movable and a screw 4 for fixing the sliding member 3, and is provided with a lowering regulating part 7 for regulating the lowering of the screw 4 fixing the sliding member 3 at a position close to the lower end of a rail 6 of an upper frame 5.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a fitting having a sliding door. [Background technology]

[0002] In fixtures with sliding doors, there was a problem where the sliding doors would tip over (tilt in-plane) and rattle when they were closed forcefully. Summary of the Invention [Problem to be solved by the invention]

[0003] In view of the above-mentioned circumstances, the present invention aims to provide a fitting that can prevent sliding doors from falling over. [Means for solving the problem]

[0004] In order to achieve the above object, the fixture according to the invention described in claim 1 comprises a sliding door and a locking part attached to the top of the sliding door, the locking part having a sliding member that can move up and down and a screw for fixing the sliding member, and also having a downward restriction part that restricts the screw that fixes the sliding member to a position close to the lower end of the rail of the upper frame from dropping. [Effects of the Invention]

[0005] The fixture according to the invention described in claim 1 comprises a sliding door and a stopper part attached to the top of the sliding door. The stopper part has a sliding member that can move up and down and a screw for fixing the sliding member, and is also provided with a downward restriction part that prevents the screw that fixes the sliding member to a position close to the lower end of the rail of the upper frame from dropping. This means that even when an impact force is applied to the sliding door, the sliding member will not drop, preventing the sliding door from falling. [Brief explanation of the drawings]

[0006] [Figure 1] 1(a) is a front view of the retaining part, and FIG. 1(b) is a side view of the same. [Figure 2] (a) is a side view of the door edge side of the main body of the anti-detachment part, and (b) is an oblique view from the door edge side. [Figure 3] FIG. 1 is a front view of one embodiment of the fitting of the present invention, seen from the dressing room side. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] These are front and side views showing the use of the anti-detachment part, where (a) shows the state when the sliding door screen is set between the upper and lower frames, (b) shows the state when the sliding member has been moved upward and fixed, and (c) shows the state when the sliding door screen is about to lift up. [Figure 7] This is a front view of the same fixture as seen from the changing room side, showing the state when the sliding door is slammed shut with the finger-pinch prevention stopper protruding from the door edge. [Figure 8] 10A and 10B are longitudinal cross-sectional views showing the relationship between the screw and the downward restriction portion, where (a) and (b) are examples where measures have been taken to increase the area of ​​the downward restriction portion (embodiment), where (a) shows the case where a general pan head screw is used, and (b) shows the case where a special screw with a long, cylindrical head is used, and (c) and (d) are examples where the area of ​​the downward restriction portion is small (comparison example), where (c) shows the case where a general pan head screw is used, and (d) shows the case where a special screw with a long, cylindrical head is used. [Figure 9] FIG. 10 is a perspective view showing an example of a conventional anti-detachment component. DETAILED DESCRIPTION OF THE INVENTION

[0007] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Figures 1 to 5 show one embodiment of the fitting of the present invention. This fitting is applied to a bathroom door installed at the entrance to a bathroom, and as shown in Figures 3 to 5, it comprises a frame 8 and three sliding shoji doors 1a, 1b, and 1c housed within the frame 8. The three sliding shoji doors 1a, 1b, and 1c are arranged offset from one another in the front direction, and the sliding shoji door 1a located on the dressing room side has a pull tab 9 that is slid open and closed by holding the pull tab 9. When fully open, the three sliding shoji doors 1a, 1b, and 1c overlap in the front direction at a position adjacent to the vertical frame 10 on the left side when viewed from the dressing room side.

[0008] As shown in Figure 3, the frame 8 is composed of an upper frame 5, a lower frame 11, and left and right vertical frames 10, 10, and is attached to the opening between the bathroom and the dressing room. As shown in Figure 4, the upper frame 5 has rails 6 that guide the upper parts of each sliding door 1a, 1b, 1c, hanging down at intervals in the projection direction. The lower frame 11 has rails 12 that guide the lower parts of each sliding door 1a, 1b, 1c, attached at intervals in the projection direction. Each sliding door 1a, 1b, 1c is set between the rails 6 of the upper frame 5 and the rails 12 of the lower frame 11 using a kendon (kendo) fastener.

[0009] As shown in Figure 3, each sliding door screen 1a, 1b, 1c is constructed by assembling an upper frame 13, a lower frame 14, and vertical frames 15a, 15b on the door front and rear ends, and fitting a panel 16 into the frame. The sliding door screen 1a located on the dressing room side has a pull handle 9 attached to the vertical middle part of the vertical frame 15a on the door front side, and a finger pinch prevention stopper 17 is provided at the upper position of the vertical frame 15a to prevent fingers from getting pinched when closing the sliding door screen 1a. The finger pinch prevention stopper 17 is arranged so that it can be raised and lowered from the door edge side of the vertical frame 15a. As shown in Figure 7, by leaving the finger pinch prevention stopper 17 protruding from the door edge when the sliding shoji door 1a is closed, the tip of the finger pinch prevention stopper 17 hits the vertical frame 10, forming a gap 18 between the vertical frame 10 and the door edge of the sliding shoji door 1a, thereby preventing fingers from getting pinched.

[0010] As shown in Figure 4, the bottom frame 14 of each sliding door 1a, 1b, 1c is provided with a door roller 30 that runs on a rail 12 of the bottom frame 11, and the height of the door roller 30 can be adjusted up and down by approximately 3.0 mm by turning an adjustment screw 31 with a tool from the side. When the height of the door roller 30 is adjusted, the sliding door 1a, 1b, 1c moves up and down accordingly.

[0011] As shown in Figure 1, the upper end of the vertical frame 15a, 15b of each sliding door 1a, 1b, 1c is provided with a retaining member 2. The retaining member 2 comprises a main body 19, a sliding member 3 housed within the main body 19 so that it can move up and down, and a screw 4 for fixing the sliding member 3 to the main body 19 at any height. The main body 19 and the sliding member 3 are made of hard resin.

[0012] As shown in Figure 1, the main body 19 has a groove 20 formed downward from the top surface that engulfs the rail 6 of the upper frame 5, and a vibration prevention portion 21 is provided at the top of the groove 20, facing closely to the exterior and interior sides of the rail 6, and the vibration prevention portion 21 regulates the vibration of the upper part of the sliding door screen 1a, 1b, 1c in the forward direction. The main body 19 also has a fitting portion 22 that is fitted into the hollow portion of the vertical frames 15a, 15b from above and is held therein, and the fitting portion 22 is provided with a claw 23 to prevent it from coming out.

[0013] A vertically elongated hole 24 for receiving the screw 4 is formed on the door-end side surface of the fitting portion 22. As shown in Fig. 2, the elongated hole 24 has an in-use height adjustment elongated hole portion 24a at the top for adjusting the height of the sliding member 3 in accordance with the height adjustment of the door roller 30, and a continuous hole portion 24b below the in-use height adjustment elongated hole portion 24a for lowering the sliding member 3 when installing the sliding door screens 1a, 1b, and 1c into the frame 8. The in-use height adjustment elongated hole portion 24a is formed to have a length that allows the position of the screw 4 to be adjusted up and down by a range equal to or greater than the height adjustment range of the door roller 30. Specifically, as shown in Fig. 2(a), the distance a between the centers of the screw shafts 4a when the screw 4 is positioned at the upper end and the lower end of the in-use height adjustment elongated hole portion 24a is 5 mm. The elongated hole portion 24b for installation is designed so that the center distance b of the screw shaft 4a is 9 mm when the screw 4 is positioned at the lower end of the elongated hole portion 24b for height adjustment during use and when the screw 4 is positioned at the lower end of the elongated hole portion 24b for installation.

[0014] As shown in Figure 2, the elongated hole portion 24a for adjusting the height during use and the elongated hole portion 24b for erection each have through-hole portions 25a, 25b through which the shaft 4a of the screw 4 is inserted, and countersunk portions 26a, 26b for receiving the head 4b of the screw 4. The through-hole portion 25a of the elongated hole portion 24a for adjusting the height during use and the through-hole portion 25b of the elongated hole portion 24b for erection are formed continuously in the vertical direction. Counterbore 26b of slot 24b for installation is thicker than counterbore 26a of slot 24a for height adjustment during use by adding material to the door edge. Specifically, the thickness A of upper counterbore 26a is approximately 4 mm, and the thickness B of lower counterbore 26b is approximately twice that, at 7.5 mm, resulting in a step C of approximately 3.5 mm between upper and lower counterbore 26a, 26b. A screw 4 drop restriction 7 is provided between counterbore 26a, 26b, which are formed at different levels. The downward restriction portion 7 is provided at the middle position of the up and down movement range of the slide member 3, and is formed as an arc-shaped curved surface that matches the lower half of the outer circumference of the head 4b of the screw 4, and has a large area that extends in the left and right direction by the thickness of the built-up portion of the lower countersink 26b.As will be described later, when the slide member 3 is slid upward and the screw 4 is tightened and fixed at a position above the long hole 24, this is the abutment portion against which the head 4b of the screw 4 abuts when the screw 4 tries to lower.

[0015] The slide member 3 is formed in the shape of a square block, and has a groove 27 formed in the upper part with the same width as the groove 20 in the main body 19. The lower part of the slide member 3 holds a metal plate 28 having a female threaded hole into which the screw 4 is threaded.

[0016] When fitting the sliding door shoji 1a, 1b, 1c between the upper and lower frames 5, 11, as shown in Figure 6(a), loosen the screw 4 of the anti-detachment part 2 and position the screw 4 at the lower end of the long hole 24b for fitting, thereby sliding the sliding member 3 to the bottom. Once the sliding doors 1a, 1b, and 1c have been set between the upper and lower frames 5 and 11, the height of the rollers 30 is adjusted. Then, as shown in Figure 6(b), the slide member 3 is slid upward until it is close to the lower end of the rail 6 of the upper frame 5, and the screws 4 are tightened within the range of the elongated hole portion 24a for adjusting the height during use to secure it in place. This prevents the sliding doors 1a, 1b, and 1c from lifting up, preventing them from falling over. As shown in Figure 7, when sliding door 1a is forcefully closed with finger-pinch prevention stopper 17 protruding beyond the door edge, as finger-pinch prevention stopper 17 collides with vertical frame 10, sliding door 1a attempts to roll in the direction of arrow 29 in the figure, causing the door edge of sliding door 1a to spring up. At this time, slide member 3 of anti-detachment part 2 is pushed downward by rail 6 of upper frame 5, and if this force exceeds the fastening force and frictional force of screw 4, slide member 3 will slide downward together with screw 4. However, as shown in Figure 6(c), head 4b of screw 4 abuts against downward restriction part 7, preventing slide member 3 and screw 4 from falling further. This restricts the door edge of sliding door 1a from springing up, preventing sliding door 1a from falling over. FIG. 9 shows an example of a conventional anti-detachment part, and as shown in the figure, the long hole 90 into which the screw (not shown) is inserted is simply a vertical long hole 90 that does not have a downward restriction part 7, so when an impact force is applied to the sliding door screen 1a, for example when the sliding door screen 1a is closed forcefully and the sliding member 3 is pushed downward strongly, the screw slips inside the long hole 90, causing the sliding member 3 to drop and the sliding door screen 1a to fall over (see the two-dot chain line in FIG. 7). When the sliding door 1a is closed, if it falls as shown by the two-dot chain line in Figure 7, the gap between the door edge of the sliding door 1a and the vertical frame 10 will narrow at the bottom, and the function of preventing fingers from getting pinched will be lost. However, as described above, this fitting is equipped with a drop restriction part 7 on the anti-detachment part 2, which prevents the door edge from bouncing up when the sliding door is closed and prevents the sliding door 1a from falling, so a constant gap 18 is maintained in the longitudinal (up and down) direction between the door edge of the sliding door 1a and the vertical frame 10, making it possible to prevent fingers from getting pinched.

[0017] As shown in Figure 8(c), if a general screw (pan head screw) 4 is used when the area of ​​the downward restriction portion 7 is small, the contact area between the downward restriction portion 7 and the screw head 4b is small, and therefore the downward restriction portion 7 cannot be stably restricted from downward movement of the screw 4. Furthermore, there is a risk that the downward restriction portion 7 will be damaged by impact or stress concentration. As shown in Figure 8(d), even if a special screw 4 with a long, cylindrical head 4b is used and the contact area between the downward restriction portion 7 and the screw head 4b is increased, the burden on the downward restriction portion 7 remains large, and therefore the downward restriction portion 7 will not be prevented from being damaged. In contrast, as mentioned above, the anti-slip component 2 of the present invention has a larger area for the downward restriction portion 7 and is reinforced by thickening the countersink portion 26b below the downward restriction portion 7. Therefore, not only when a special screw 4 with a long, cylindrical head 4b is used as shown in Figure 8(b), but also when a general screw (pan head screw) 4 is used as shown in Figure 8(a), the large contact area between the downward restriction portion 7 and the screw head 4b can stably restrict the screw 4 from moving downward, and the increased strength of the downward restriction portion 7 prevents damage.

[0018] As described above, this fixture comprises a sliding door shoji 1a and a fall prevention part 2 attached to the top of the sliding door shoji 1a. The fall prevention part 2 has a sliding member 3 that is movable up and down and a screw 4 for fixing the sliding member 3, and is also provided with a fall prevention part 7 that prevents the screw 4 that fixes the sliding member 3 in a position close to the lower end of the rail 6 of the upper frame 5 from falling. This means that even when an impact force is applied to the sliding door shoji 1a, the sliding member 3 will not fall, preventing the sliding door shoji 1a from falling. The anti-detachment part 2 has a vertical long hole (long hole part for adjusting height when in use) 24a above the downward restriction part 7, so even if the sliding door screens 1a, 1b, 1c are displaced up or down by adjusting the height of the door roller 30, the amount of displacement can be absorbed and the sliding member 3 can be adjusted to the optimum height position. In addition, the anti-detachment part 2 has a thickness below the downward restriction part 7, which increases the area of ​​the downward restriction part 7, and the countersunk part 26b below the downward restriction part 7 is made thick, so that even when a general screw 4 such as a pan head screw is used, the screw 4 is held stably and the downward restriction part 7 can be prevented from being damaged. The anti-slip component 2 has anti-vibration sections 21 that face the exterior and interior sides of the rail 6 of the upper frame 5, so it can regulate the vibration of the upper part of the sliding shoji door 1a in the forward direction. In other words, one anti-slip component 2 can have the dual functions of preventing the sliding shoji door 1a from slipping out and of preventing it from vibrating. The downward restricting portion 7 is provided at the middle position of the up and down movement range of the slide member 3, and is the contact portion against which the head 4b of the tightened screw 4 comes into contact. Therefore, when an impact force is applied to the sliding door screen 1a and the slide member 3 tries to go down, the head 4b of the tightened screw 4 comes into contact with the downward restricting portion 7, thereby reliably preventing the slide member 3 and the screw 4 from going down.

[0019] The present invention is not limited to the above-described embodiments. The shapes and materials of the anti-detachment component and the sliding member can be modified as appropriate. The downward movement prevention portion may be formed to prevent the screw that secures the sliding member in the upward sliding position from descending, and its specific form is not critical. The sliding door does not necessarily need to have a finger-pinch prevention stopper. The anti-detachment component of the present invention is effective in preventing the sliding door from falling, for example, when subjected to strong shaking during an earthquake or when the door rollers run over a foreign object, causing the sliding door to bounce up. The present invention is not limited to bathroom doors, but can be applied to any building fixtures that include sliding doors, such as those with two sliding doors that can be opened and closed freely, or those with a single sliding door. [Explanation of symbols]

[0020] 1a Sliding door shoji 2. Anti-detachment parts 3 Slide member 4 screws 5 Upper frame 6 Rail 7. Downward restriction section

Claims

[Claim 1] A fitting comprising a sliding shoji door and a stopper part provided on the top of the sliding shoji door, the stopper part having a sliding member provided so as to be movable up and down, a screw for fixing the sliding member, and a lowering restricting part for restricting the lowering of the screw that fixes the sliding member to a position close to the lower end of the rail of the upper frame.

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