JP2006104894A - Flat sliding door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flat sliding door superior in strength and economic efficiency, by simplifying a holding structure of a door panel and a structure of a parallel link mechanism, by holding even the door panel of large weight in a well-balanced state. <P>SOLUTION: This flat sliding door has a first rail 3 and a second rail 4 linearly formed and arranged in parallel, a linearly sliding first door panel 1 suspended and held by the first rail 3 via a suspending door roller 5, and a second door panel 2 suspended and held by the second rail 4 via suspending door rollers 6 and the parallel link mechanism and sliding by accompanying the parallel movement in the longitudinal direction. The first rail 3 and the second rail 4 are vertically arranged with the second rail 4 on the upper side, and the first door panel 1 is suspended and held just under the first rail 3. The second door panel 2 is connected via the parallel link mechanism to a support shaft S held by being brought out forward from the suspending door rollers 6 for traveling on the second rail 4, and the second door panel 2 can also be suspended and held just under the first rail 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sliding door that can be used as a fitting for a storage space, a movable partition of a space, and the like, and more particularly, to a flat sliding door in which door plates are arranged flush with each other when two or more adjacent door plates are closed.

  The so-called flat sliding doors are configured such that the left and right door plates (shoji) that run along the rail overlap in a retracted state when opened, and are arranged in a flush state when closed. Is disclosed.

The basic structure of this type of flat sliding door is that either the left or right door plate (first door plate) is moved linearly along the straight rail (first rail) in the same way as a general sliding door. The door plate (second door plate) is held by a linear second rail installed in parallel with the first rail, and a parallel link mechanism is provided in a traveling unit such as a door wheel that travels the second rail. The second door plate is slid while being translated in the front-rear direction.
JP-A-8-1210213 JP 2003-56243 A Japanese Utility Model Publication No. 61-76075

  Since the flat sliding doors according to the above-described conventional technologies are structured to hold the door plate shifted forward from the mounting position of the rail so that the rail is hidden by the door plate, the rail and the door plate are installed. Space increases in the front-rear direction (depth direction). Therefore, for example, when it is used as a fitting for a storage space, the internal volume of the storage space is reduced accordingly. Furthermore, since the center of gravity of the door plate is not located directly below the traveling unit traveling on the rail, a rotational moment due to the weight of the door plate acts on the traveling unit, and it is structurally impossible to build a heavy door plate. Arise.

  In addition, the parallel link mechanism employed in the conventional flat sliding door has a complicated structure and a large number of parts, so that it is difficult to secure the strength capable of holding a heavy door plate, and the manufacturing cost increases. .

  The present invention has been made in view of such circumstances, and in particular, the door plate can be held in a mechanically well-balanced state so as to be compatible with a door plate having a large weight, and the door plate holding structure is provided. In addition, the present invention provides a flat sliding door that has a simplified structure of a parallel link mechanism and is excellent in strength and economy.

In order to achieve the above object, the flat sliding door of the present invention is formed in a straight line, and is arranged in parallel with each other, and the first rail is provided with two or more suspension door wheels. A first door plate that is suspended and slid linearly, and a second door plate that is suspended on the second rail via two or more suspension door wheels and a parallel link mechanism and slides with a parallel movement in the front-rear direction. The first door plate and the second door plate are flat sliding doors configured to overlap in a retracted state when opened and to be flush with each other when closed,
The first rail and the second rail are arranged up and down with the second rail facing upward, and the first door plate is suspended just below the first rail, and is taken forward from each suspended door truck traveling on the second rail. A vertical support shaft is held by the bracket, a parallel link mechanism is connected to each support shaft, and the second door plate can also be suspended directly below the first rail.

  Since the present invention is configured to suspend and slide the door plate directly below the rails arranged in the upper and lower two stages, the rail is exposed above the door plate. The unreasonable load other than is hardly applied, and the suspended state and running state of the door plate are stabilized. Therefore, it can be applied without difficulty to a heavy doorboard.

  The parallel link mechanism that translates the second door plate in the front-rear direction is composed of at least two link arms that are connected to the support shaft and the upper portion of the door plate, respectively, and rotate in the horizontal direction. According to this configuration, the movable part is only required at the two ends of the link arm, and the structure becomes simple. Therefore, the rigidity and strength of the entire mechanism can be easily ensured, and the manufacturing cost is reduced.

  In the above invention, the cross-sectional shape of the first rail and the second rail is a groove-shaped cross-sectional shape with a lip opening downward, and a gap with a certain height is provided between the first rail and the second rail. Thus, it is preferable that the bracket to be taken forward from the suspended door pulley traveling on the second rail is configured to move in the gap.

  The rail with a lip-shaped cross-section that opens on the lower side allows a suspended door pulley having two rows and four traveling wheels to run on the lip formed on both edges of the rail, so the weight of the door plate Even when the door is large, it is advantageous for stably suspending the door plate and running it smoothly.

  Further, when the rail as described above is adopted, it is preferable that two or more suspension door wheels traveling on the second rail are connected to each other by a substantially strip-shaped stabilizer on the lower side of the second rail. . Thereby, the operation | movement precision of a parallel link mechanism improves, and the front-back movement of a 2nd doorplate becomes smoother.

  As described above, the flat sliding door of the present invention is configured to suspend and slide the door plate directly below the rails arranged in the upper and lower two stages, so that the vertical sliding doors and rails other than the vertical direction are arranged. An unreasonable load can be avoided. Therefore, even a heavy doorboard can be stably suspended and run smoothly.

  In addition, the flat sliding door of the present invention has a simple structure because the parallel link mechanism that translates the second door plate in the front-rear direction is constituted by a link arm that is connected to the support shaft and the upper portion of the door plate, respectively. The rigidity and strength of the entire mechanism are easily secured, and the manufacturing cost is reduced.

  Therefore, it is practically possible to use a flat sliding door, which has conventionally been difficult to use only up to the weight of a storage space as a structural limit, as a movable partition in a large space such as a banquet hall. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIGS. 1 and 2 are views showing the structure of a flat sliding door according to an embodiment of the present invention. FIG. 1 is a view of the flat sliding door as viewed from the front, and FIG. It is explanatory drawing which shows this.

  This flat sliding door has two left and right door plates as viewed from the front. 1 and 2, the first door plate 1 is located on the left side, and the second door plate 2 is located on the right side. Both door plates are suspended by rails installed above and slide in the left-right direction.

  The rail is composed of a first rail 3 for suspending the first door plate 1 and a second rail 4 for suspending the second door plate 2, with the second rail 4 on the upper side and the first rail 3 on the lower side. An appropriate gap is provided between both rails, and the rails are arranged vertically. Both the first rail 3 and the second rail 4 have a common uniform cross section, are formed in a straight line, and are attached to the full width of the opening surface.

  The first door plate 1 is suspended at a position directly below the center line R of the rail via two or more suspension door cars 5 traveling along the first rail 3 and slides linearly.

  The second door plate 2 is suspended via two or more suspension door wheels 6 that travel along the second rail 4 and parallel link mechanisms connected to the suspension door wheels 6, and directly below the center line R of the rails. Slide between the position and the position protruding forward by the thickness of approximately one door plate in such a manner that it can be translated in the front-rear direction.

  FIG. 2A shows a state in which the flat sliding door is closed, and the first door plate 1 and the second door plate 2 are both aligned at a position directly below the center line R of the rail. FIG. 2B shows a state in which the flat sliding door has begun to be opened, and the second door plate 2 protrudes forward, and a part thereof overlaps the front side of the first door plate 1. In order to project the second door plate 2 forward, the second door plate 2 is pushed leftward by holding a handle 2a (see FIG. 1) provided on the front surface of the second door plate 2, or the first door plate 1 Holding the handle 1a provided on the front of the first door plate 1 is pushed rightward. Then, since the summing surfaces of the first door plate 1 and the second door plate 2 are obliquely overlapped, the second door plate 2 is pushed forward by receiving the repulsive force of the summing surface. From the state in which the second door plate 2 protrudes forward, both the first door plate 1 and the second door plate 2 are slid in the left-right direction without interfering with each other, and are in a retracted state as shown in FIG. Can be.

  3 to 4 are longitudinal sectional views in the vicinity of the rail showing the flat sliding door suspension structure that enables the movement of the door plate as described above, and FIG. 3 is a state in which the second door plate 2 is directly under the rail. FIG. 4 shows a state in which the second door plate 2 protrudes forward.

  Each of the first rail 3 and the second rail 4 has a groove-shaped cross-sectional shape with a lip that opens downward, and is integrally formed via a connecting wall portion 7 provided on the right side surface in the drawing. ing. The rail is formed of an appropriate material such as an extruded aluminum alloy or a lightweight shape steel if the door plate is light, or a shape steel material if the door plate is heavy. The method of fixing the rail is not particularly limited, but the top surface of the second rail 4 is fixed to the ceiling surface 8 with screws or the like (not shown) as in the illustrated embodiment, or a hanging wall hanging from the ceiling surface 8 If there is a beam shape, a fixing member, etc., it is possible to screw the side surface of the rail to the hanging wall 9.

  Two or more suspension door carts 5 and 6 for sliding the first door plate 1 and the second door plate 2 are incorporated in the first rail 3 and the second rail 4, respectively. The suspension doors 5 and 6 are preferably such that, for example, two rows and four traveling wheels 5a and 6a roll on the lip portions 3a and 4a of the rails. According to the combination with the rail having a cross-sectional shape, even when the weight of the door plate is large, the door plate can be stably suspended and run smoothly. The suspension door wheels 5 and 6 may be provided with guide wheels (not shown) or the like that are loosely inserted between the lip portions 3a and 4a of the rail and rotate in the horizontal direction. However, when the door plate is lightweight, it is not limited to this, and other rails and hanging door carts according to known forms may be employed.

  The first door plate 1 has a structure such as a suspension bolt 10 that is coupled to a suspension door wheel 5 that runs on the first rail 3 and hangs down to a reinforcing plate 11 that is fixed to the upper edge of the first door plate 1. It is suspended directly under the rail 3. The detailed structures of the suspension bolt 10 and the reinforcing plate 11 are not particularly limited.

  The second door plate 2 is connected to a suspension bolt 12 that is coupled to a suspension door 6 that travels on the second rail 4, a stabilization plate 13 that is coupled to the suspension bolt 12, a bracket 14 that protrudes forward from the stabilization plate 13, and a bracket 14. The suspended pillar 15, the link arm 17 whose one end is pivotally supported via a support bolt 16 at the lower end of the suspended pillar 15, and the other end of the link arm 17 are rotatably connected to the upper edge of the second door plate 2. The door plate connecting bolts 18 are suspended.

  The stabilizing plate 13 is a strip-shaped member having sufficient bending rigidity, and is formed so that the thickness is smaller than the gap formed between the first rail 3 and the second rail 4. The stabilizing plate 13 connects two or more suspension door carts 6 incorporated in the second rail 4 to each other, and serves to maintain a constant interval between the suspension door carts 6. Thereby, the operation precision of the parallel link mechanism mentioned later improves, and the back-and-forth movement of the 2nd door plate 2 becomes smoother.

  The bracket 14 is a bolt-shaped member having sufficient strength, and is firmly fixed to the stabilizing plate 13 from the front, and its head projects substantially horizontally toward the front. The brackets 14 are attached at two locations corresponding to the position of the suspended door pulley 6.

  The suspension pillar 15 is a substantially cylindrical member, and an upper portion thereof is firmly coupled to the stabilization plate 13 via the bracket 14. In the illustrated embodiment, the flat surfaces 15a and 15b facing each other are formed by cutting out the upper front and rear surfaces, and a seat plate 19 as a spacer is sandwiched between the rear flat surface 15b and the stabilizing plate 13. Combined in state. A female screw hole 15c that opens to the lower surface is formed at the lower end of the suspension pillar 15, and a spindle bolt 16 is screwed into the female screw hole 15c from below.

  The link arm 17 is a plate-like member having a substantially oval shape in plan view, and is provided with rotating holes 17a and 17b in the vicinity of both ends. The front rotation hole 17a is inserted into the support bolt 16 and is held around the support bolt 16 so that it can rotate in a horizontal plane. A door plate connecting bolt 18 is inserted into the rear rotation hole 17b from above, and this door plate connecting bolt 18 is connected to a reinforcing plate 20 fixed to the upper edge of the first door plate 1. In the illustrated embodiment, ball bearings 17c and 17d are interposed in the front and rear rotation holes 17a and 17b, respectively, in order to make the rotation of the link arm 17 smooth.

  With such a suspension structure, the support shaft S (the central axis of the suspension pillar 15 and the support bolt 16) for moving the second door plate 2 back and forth is held at a position taken forward from the rail. And the parallel link mechanism for moving the 2nd door panel 2 back and forth always with the attitude | position parallel to a rail is comprised by connecting each spindle S and the upper part of the 2nd door panel 2 rotatably by the link arm 17. Is done.

  In this embodiment, the support shaft S and the parallel shaft are formed by components including the suspension bolt 12, the stabilizer plate 13, the bracket 14, the suspension pillar 15, the seat plate 19, the support shaft bolt 16, the link arm 17, and the ball bearings 17c and 17d. Although the link mechanism is comprised, the principal part of this invention hold | maintains the support shaft S in the front of a rail with the member taken out ahead from the lower side of the suspension door pulley 6, and connects the link arm 17 to the support shaft S. In the point. Therefore, as long as the support shaft S is held with sufficient strength and rigidity with respect to the load of the door plate, the detailed shape and coupling form of the component parts are not particularly limited. In addition, some of the parts to be combined and joined may be integrally formed in advance.

  FIG. 5 is an explanatory view showing the action of the parallel link mechanism for moving the second door plate 2 back and forth in plan view. As shown in the figure, the link arm 17 is formed such that the center distance L between the rotation holes 17a and 17b formed at both ends is approximately 1.5 times the thickness of the door plate. Therefore, when the second door plate 2 is pushed directly under the rail, the long axis of the link arm 17 forms an intersection angle of about 45 degrees with respect to the center line R of the rail.

  2 to 5, a member denoted by reference numeral 21 is a guide roller attached coaxially with the rotation holes 17 a and 17 b on the rear side of the link arm 17. The guide roller 21 is attached so that the second door plate 2 can be smoothly pushed directly under the rail when the second door plate 2 in the open state is closed. That is, in FIG. 1, when the second door plate 2 protruding forward is slid in the closing direction (rightward in the figure), the guide roller 21 is brought near the right end of the first rail 3 immediately before the closing position. It abuts against the attached guide plate 22. As shown in FIG. 5, the guide plate 22 is formed so that the left side protrudes forward. When the guide roller 21 comes into contact with the guide plate 22 from the left, the guide roller 21 moves to the rail side. Be guided. Thereby, the operation which makes the 2nd door plate 2 and the 1st door plate 1 match flush at the time of closing becomes easy.

  In addition, the flat sliding door shown to the said embodiment has prescribed | regulated the direction which the 2nd doorboard 2 protrudes at the time of opening for convenience of explanation as the front. In that case, the support shaft S for suspending the second door plate 2 is provided on the same side as the protruding direction of the second door plate 2, that is, on the front side of the rail. As long as the positional relationship that the support shaft S of the second door plate 2 is provided on the side where the second door plate 2 protrudes from the rail is maintained, the present invention can be applied by arbitrarily replacing the front, rear, left and right of the flat sliding door. .

  Therefore, for example, when the flat sliding door of the present invention is used as a fitting for a storage space, if it is desired to avoid exposing the parallel link mechanism that holds the second door plate 2 on the front side, the support shaft S is placed on the back side of the rail (storage). It is also possible to provide the second door plate 2 in parallel with the rear side of the storage space.

  Further, the present invention can be similarly implemented even when there are three or more door plates. The number of rails is increased according to the number of doors, and all of the rails are arranged vertically, giving parallel displacements to the doors other than a single door that is moved linearly. If a link mechanism is provided, even three or more door plates can be slid without interfering with each other, and all the door plates can be arranged flush with each other when closed. In addition, in a sliding door of a type in which four door plates are separated from each other on the left and right, the door plates that are paired on the left and right can be suspended on two upper and lower rails.

  Since the present invention is characterized in that a plurality of rails are arranged vertically and a door plate is suspended immediately below, the structural dimension is small in the depth direction but large in the vertical direction. Therefore, when viewed from the front side, members around the rail and the support shaft S are exposed, and the overall design may be impaired. As a means for solving this problem, for example, a rail is installed at a position higher than the ceiling surface so that the rail cannot be seen from the room, or a decorative member such as a curtain box or a curtain is installed in front of the rail. Then, a means such as hiding the rail can be adopted.

  The flat sliding door of the present invention can be widely used as an opening in a building, a fitting for a storage space, or as a movable partition in a large space.

It is a front view of the flat sliding door which concerns on embodiment of this invention. It is explanatory drawing which shows the motion of a doorplate seeing the said flat sliding door from the top. It is a longitudinal cross-sectional view of the vicinity of the rail (the AA ′ position in FIG. 2A) showing the suspension structure of the flat sliding door, and the second when the second door panel is flush with the first door panel. It is a figure which shows the suspension structure of a doorplate. It is a longitudinal cross-sectional view of the vicinity of the rail showing the suspension structure of the flat sliding door (BB ′ position in FIG. 2B) when the first door plate and the second door plate overlap each other in a sliding state. It is a figure which shows a suspension structure. It is explanatory drawing which shows the movement seeing the parallel link mechanism in the said flat sliding door from the top.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st door plate 2 2nd door plate 3 1st rail 4 2nd rail 5 1st rail suspension door pulley 6 Second rail suspension door pulley 13 Stabilizing plate 14 Bracket 17 Link arm S Spindle

Claims (4)

A first rail and a second rail, each formed in a straight line and arranged in parallel with each other;
A first door plate that is suspended on the first rail via two or more suspension door pulleys and slides linearly, and is suspended on the second rail via two or more suspension door pulleys and a parallel link mechanism. A flat door that comprises a second door plate that slides with parallel movement, the first door plate and the second door plate overlap in a sliding state when opened, and are arranged flush with each other when closed;
The first rail and the second rail are arranged up and down with the second rail facing upward, and the first door plate is suspended just below the first rail, and is taken forward from each suspended door truck traveling on the second rail. A flat sliding door characterized in that a vertical support shaft is held by the bracket, a parallel link mechanism is connected to each support shaft, and the second door plate can also be suspended directly under the first rail. .   2. The flat sliding door according to claim 1, wherein the parallel link mechanism is configured by at least two link arms whose both ends are respectively connected to the support shaft and the upper part of the door plate and rotate in the horizontal direction.   The cross-sectional shape of the first rail and the second rail is a groove-shaped cross-sectional shape with a lip that opens downward, and a gap with a certain height is provided between the first rail and the second rail, 2. The flat sliding door according to claim 1, wherein a bracket that is taken forward from a suspension car traveling on a rail moves in the gap. The flat sliding door according to claim 3, wherein two or more suspension door carts traveling on the second rail are connected to each other on the lower side of the second rail by a substantially plate-shaped stabilizer.

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