JP2023082772A - sliding door device - Google Patents

Abstract

To improve stability of a sliding door 10.SOLUTION: The sliding door device comprises: the sliding door 10 that opens/closes an opening Wa; a guide rail 31 arranged in an opening direction K of the sliding door 10 without extending to the opening Wa; a suspension roller 21 suspending a door tail side of the sliding door 10, which runs along the guide rail 31; a door roller 22 that supports a door end side of the sliding door 10 and runs on a floor F; and an upper guide roller 33 and a lower guide roller 34 that brace the sliding door 10.SELECTED DRAWING: Figure 1

Description

The present invention relates to a so-called gate-type sliding door device that does not require an upper frame or upper rail in an opening of a building wall, a self-supporting partition, a low partition, or the like.

A gate-type sliding door device has been proposed (for example, Patent Document 1).

A conventional gate-type sliding door device is provided with door rollers on the door tip side and the door trailing side of the sliding door that opens and closes the opening, and guide rails are arranged along the wall surface on the opening direction side of the sliding door. The sliding door is prevented from falling down by engaging a plurality of guide pins protruding from the upper end surface of the side with the guide rail so as to be relatively movable. Therefore, it is said that the sliding door can smoothly open and close the opening even if the guide rail is not extended into the opening.

Japanese Patent Application Laid-Open No. 2021-110178

According to such prior art, the sliding door is prevented from falling only by the engagement of the guide pin on the upper end face of the door trailing side with the guide rail on the wall surface on the opening direction side. However, there is a problem that the effective width of the opening and the height of the sliding door are unnecessarily restricted, which tends to limit the range of application.

Therefore, in view of the problems of the prior art, an object of the present invention is to stabilize the sliding door by combining an upper guide roller and a lower guide roller for vibration control with a sliding door having a hanging wheel on the trailing side and a door roller on the leading side of the door. To provide a sliding door device capable of improving flexibility and expanding the range of application.

The configuration of the present invention for achieving such an object comprises a sliding door for opening and closing an opening, a guide rail arranged in the opening direction of the sliding door without extending into the opening, and a door trailing side of the sliding door that is suspended. It comprises a hanging wheel running along a guide rail, a door roller running on the floor while supporting the edge side of the sliding door, and an upper guide roller and a lower guide roller for the sliding door, the lower guide roller being the upper guide roller. The upper guide roller and the lower guide roller are arranged closer to the trailing edge of the door, and the upper guide roller and the lower guide roller are engaged with the upper edge and lower edge of the sliding door for the entire opening/closing stroke of the sliding door, respectively, to stabilize the sliding door. This is the gist of it.

In addition, the sliding door can incorporate a pair of door stops that contact one of the upper guide roller and the lower guide roller in common or individually to define the fully closed position and the fully open position of the sliding door.

Further, the upper guide roller may be disposed in the immediate vicinity of the opening of the sliding door in the opening direction, or may be vertically provided at the tip of the guide rail on the door leading end side.

Furthermore, a flat rail for door rollers may be laid on the floor, and the flat rail may have guide grooves for guiding the door rollers.

According to the configuration of this invention, the sliding door always has 2 points each on the upper and lower sides for the entire opening/closing stroke via the hanger wheel on the side of the door bottom, the door roller on the side of the door tip, and the upper and lower guide rollers in the intermediate part. At the point, it is restrained in the lateral direction orthogonal to the opening/closing direction of the sliding door. Therefore, the sliding door can easily achieve necessary and sufficient stability not only during the opening/closing operation but also in the fully closed position and the fully opened position, and there is no possibility that the range of application is unnecessarily restricted. When the sliding door is in the fully closed position, the upper guide roller and the lower guide roller are fixedly arranged with an appropriate predetermined horizontal distance within the range of the covering margin of the sliding door that overlaps with the wall on the opening direction side of the sliding door. shall be In addition, when the sliding door is fully open, the door end protrudes into the opening by a predetermined amount of the sliding door. shall be allowed.

If the door stop for defining the fully closed position and the fully opened position of the sliding door is built in the sliding door, it is not necessary to provide a door stop as a separate member, a mullion for the door stop, etc. on the outside, and the appearance of the whole is improved. be able to. It is preferable that the pair of doorstops provided in the sliding door be in common contact with the upper guide roller, but it is also possible to be in common contact with the lower guide roller. may be brought into contact with each other individually.

By arranging the upper guide roller close to the opening of the sliding door in the opening direction, it can be brought closest to the end of the sliding door in the fully closed position. The stability of the sliding door can be further improved. In addition, it is preferable that the upper guide roller is provided downwardly at the leading end of the guide rail extending to the immediate vicinity of the opening.

Laying the flat rail for door rollers on the floor makes the door rollers run even smoother and improves the operational feeling of the sliding door. It can be improved further.

Overall configuration schematic front view Overall configuration schematic cross-sectional view Diagram of schematic operation Enlarged cross-sectional view corresponding to the AA arrow in FIG. Enlarged cross-sectional view corresponding to the BB arrow in FIG. CC arrow equivalent enlarged cross-sectional view of FIG. FIG. 1 and FIG. 2 Enlarged Explanatory View of Principal Part

Embodiments of the invention will be described below with reference to the drawings.

The sliding door device has a sliding door 10 as a main member for opening and closing an opening Wa between walls W (FIGS. 1 and 2). However, in FIGS. 1 and 2, the sliding door 10 is shown in both the fully closed position (solid line) and the fully open position (double-dot chain line). In addition, each wall W may be a free-standing partition, a low partition, or the like, in addition to the structure of the building.

The trailing end side of the sliding door 10 is suspended via a suspension wheel 21 running along a guide rail 31, and the door leading end side is supported via a door roller 22 running on the floor F via a flat rail 32. there is Further, the sliding door 10 is combined with an upper guide roller 33 and a lower guide roller 34 .

The width of the sliding door 10 is set such that the width b>a of the opening Wa (FIG. 3). When the sliding door 10 is in the fully open position (the two-dot chain line in FIG. 3), the tip of the wall W on the opening direction K side protrudes into the opening Wa by a distance corresponding to c, and the opening Wa has an effective width d=a. -c can be opened. Further, in the fully closed position (solid line in the figure), the sliding door 10 has a cover margin e on the door trailing side that overlaps the wall W on the opening direction K side, and the door tip side of the wall W on the side opposite to the opening direction K. The opening Wa can be fully closed slightly beyond the tip of the . In addition, as the opening/closing stroke f of the sliding door 10, the width of the sliding door 10 is b=c+e+f.

The sliding door 10 is constructed by attaching surface materials 12, 12 to both sides of a paper honeycomb core material 11 (Fig. 4). Channel-shaped horizontal members 13 and 14 are attached to the upper and lower edges of the sliding door 10, respectively (FIGS. 1 and 4). , covering the side surfaces of the horizontal members 13 and 14 respectively, and are bent inward at the upper edge of the horizontal member 13 and the lower edge of the horizontal member 14 . However, the upper edge of each surface member 12 is bent inward to form a downward double folded portion 12a (Fig. 1 , FIGS. 5 and 6), a slit 12b is formed between the folded portions 12a, 12a.

A handle member 16 for handling and a cushion member 17 are provided on the door tip side of the sliding door 10 via vertical members 15 (FIGS. 1, 7A and 7B). The side edges of each face member 12 are folded inwardly into side recesses of the longitudinal member 15, and the extruded profile handle members 16 are fastened together with upper and lower end covers 16a, 16a with setscrews 16b, 16b. screwed in through the Also, the cushion material 17 is elastically attached to the tip edge of the handle member 16 . However, FIGS. 7A and 7B are enlarged views of main parts of FIGS. 1 and 2, respectively. A cover material 19 is attached to the door bottom side of the sliding door 10 via a vertical member 18 having the same shape as the vertical member 15 on the door tip side (FIGS. 1 and 2).

The carriage 21b of the hanging wheel 21 on the trailing edge side of the sliding door 10 is connected to a connecting block 21a installed in the horizontal member 13 at the upper edge of the sliding door 10 (Figs. 1 and 4). A guide rail 31 on which the suspension wheel 21 travels is arranged along the wall W on the side of the opening direction K of the sliding door 10, and is mounted via a bracket 31a having a substantially inverted L-shaped cross section, setscrews 31b, 31b, and a small screw 31c. fixed to the surface of the wall W. A cover member 31d is attached to the guide rail 31 via a set screw 31e. The end of the guide rail 31 on the side of the door does not extend into the opening Wa, but extends to the immediate vicinity of the opening Wa. However, both ends of the guide rail 31 are closed via end covers 31f (FIGS. 1 and 5).

Damper devices 35 are provided in symmetrical directions at the front end and rear end of the guide rail 31 (FIGS. 1 and 4). Each damper device 35 is formed by an upward connecting pin 21d at the tip of an adapter member 21c which is attached to a carriage 21b of a suspension wheel 21 and protrudes toward the front end of the door. , the sliding door 10 approaching the fully closed position and the fully open position can be appropriately braked, smoothly pulled into the fully closed position and the fully open position, and stopped at a fixed position. That is, each damper device 35 compactly incorporates a damper mechanism for braking and a spring mechanism for retraction in addition to an automatic engagement/disengagement mechanism with the connecting pin 21d.

A door roller 22 on the leading edge side of the sliding door 10 is incorporated in the leading edge side of the horizontal member 14 at the lower edge of the sliding door 10 via a frame-shaped reinforcing member 22a (FIGS. 1 and 6). A guide rib 22b is formed on the outer periphery of the door roller 22 to fit the guide groove 32a of the flat rail 32, and the flat rail 32 is screwed onto the floor F via set screws 32b, 32b, . . . (Figs. 5 and 6).

The upper guide roller 33 is arranged in the immediate vicinity of the opening Wa on the opening direction K side of the sliding door 10 (FIGS. 1 and 5). The upper guide roller 33 is vertically installed at the front end of the guide rail 31 via a bracket 33a screwed into the guide rail 31, and hangs downward into the horizontal member 13 at the upper edge of the sliding door 10. By horizontally rotating forward and backward, the sliding door 10 engages with the horizontal member 13 over the entire opening/closing stroke f of the sliding door 10 so that the sliding door 10 is damped.

A pair of door stops 36 and 37 corresponding to the upper guide roller 33 are built in the horizontal member 13 at the upper edge of the sliding door 10 . The door stop 36 is an L-shaped member that is screwed to the bottom surface of the horizontal member 13 via setscrews 36a, 36a. stipulate. The door stop 37 is formed by closing the door bottom side of the downward channel-shaped member (FIGS. 1 and 6), and is screwed to the bottom surface of the horizontal member 13 via a set screw 37a. to define the fully open position of the sliding door 10. That is, the doorstops 36 and 37 are in common contact with the upper guide roller 33 to define the fully closed position and the fully open position of the sliding door 10 .

The doorstops 36 and 37 may be installed in the horizontal member 14 at the lower edge instead of in the horizontal member 13 at the upper edge, and may be brought into contact with the lower guide roller 34 in common. One of the doorstops 36 and 37 is installed in the horizontal member 13 at the upper edge to abut on the upper guide roller 33, and the other is installed in the horizontal member 14 at the lower edge to contact the lower guide roller 34. , and may be brought into contact with the upper guide roller 33 or the lower guide roller 34 individually.

The lower guide roller 34 is installed upward on the floor F so as to correspond to the hanging wheel 21 of the sliding door 10 in the fully closed position (FIGS. 1 and 4). The lower guide roller 34 is positioned within the covering allowance e of the sliding door 10 together with the upper guide roller 33, and if it is separated from the upper guide roller 33 by an appropriate predetermined horizontal distance toward the door trailing edge, it is in the fully closed position. It is not necessary to correspond to the suspension wheel 21 of . The lower guide roller 34 protrudes into the horizontal member 14 at the lower edge of the sliding door 10 using a shaft 34c on a base member 34a fixed via anchor bolts 34b, 34b. The lower guide roller 34 horizontally rotates forward and backward in the horizontal member 14 to engage with the horizontal member 14 for the entire opening/closing stroke f of the sliding door 10 so that the sliding door 10 is damped. .

The sliding door 10 can be easily opened and closed via a hanging wheel 21 on the trailing edge side and a door roller 22 on the leading edge side, and can be opened and closed including a fully closed position and a fully opened position via an upper guide roller 33 and a lower guide roller 34. The necessary and sufficient stability can be easily achieved by effectively damping over the entire stroke f. In addition, since the sliding door 10 is of a hanging type on the door bottom side, the influence of the unevenness of the floor F can be minimized.

In the above description, the door roller 22 may roll directly on the floor F by omitting the flat rail 32 . However, the door roller 22 at this time is preferably formed in a flat shape in which substantially the entire width of the outer periphery is in contact with the floor F without forming the guide ribs 22b on the outer periphery.

It should be noted that the suspension wheel 21 may be of a type in which a grooved wheel is cantilevered on an upward single-track rail formed in the guide rail 31 instead of the illustrated type in which the suspension wheel 21 is driven inside the guide rail 31. good.

Moreover, the sliding door 10 can also be configured as a sliding door device of a sliding door by combining two single sliding doors shown in the figure in a bilaterally symmetrical manner.

Further, the sliding door 10 is constructed as an inset type that opens and closes by pulling into the inside or thickness of the wall W instead of the illustrated outset type that opens and closes along the surface of the wall W on the opening direction K side. may

This invention improves the stability of the sliding door and expands the range of application by providing a hanging wheel on the trailing side of the door and a door roller on the leading end of the sliding door, and combining an upper guide roller and a lower guide roller for vibration control. It can be widely and suitably applied to applications for opening and closing openings such as arbitrary building walls, self-supporting partitions, and low partitions.

Wa ... opening K ... opening direction f ... opening and closing stroke 10 ... sliding door 21 ... hanging wheel 22 ... door roller 31 ... guide rail 32 ... flat rail 32a ... guide groove 33 ... upper guide roller 34 ... lower guide roller 36, 37 ... door stop

Patent Applicant Komatsu Wall Industry Co., Ltd.

Claims (6)

A sliding door that opens and closes an opening, a guide rail that is arranged in the opening direction of the sliding door without extending into the opening, and a hanging wheel that hangs the door tail side of the sliding door and travels along the guide rail, The sliding door comprises a door roller that supports the leading end of the sliding door and travels on the floor, and an upper guide roller and a lower guide roller for the sliding door, wherein the lower guide roller is arranged closer to the door trailing edge than the upper guide roller. and the upper guide roller and the lower guide roller are engaged with the upper edge portion and the lower edge portion of the sliding door respectively for the entire opening/closing stroke of the sliding door to stabilize the sliding door. Sliding door device. The sliding door is characterized by incorporating a pair of door stops that contact one of the upper guide roller and the lower guide roller in common or individually to define a fully closed position and a fully open position of the sliding door. The sliding door device according to claim 1. 3. The sliding door apparatus according to claim 1, wherein the upper guide roller is arranged in the immediate vicinity of the opening of the sliding door on the opening direction side. The sliding door apparatus according to any one of claims 1 to 3, wherein the upper guide roller is vertically provided at the tip portion of the guide rail on the door tip side. 5. The sliding door apparatus according to claim 1, wherein the flat rail for the door roller is laid on the floor. 6. The sliding door device according to claim 5, wherein the flat rail has a guide groove for guiding the door roller.

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