JP2006144221A - Flat sliding door unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flat sliding door unit which has a simple structure that can smoothly move even a heavy door panels in a balanced manner, and is excellent in strength, workability, and cost efficiency. <P>SOLUTION: The flat sliding door unit has two rails which are linearly formed and arranged in parallel with each other. One of the two rails is a fixed rail 3 from which a first door panel 1 is hung in a manner linearly sliding along the same, and the other is a movable rail 4 from which a second door panel 2 is hung in a manner linearly sliding along the same. The movable rail 4 is held so as to be almost horizontally movable in a direction orthogonal to an axis of the movable rail 4 via a rail moving means. Therefore when the door unit is in a closed state, the second door panel 2 hung from the movable rail 4 is arranged so as to be flush with the first door panel 1, and when the door unit is in an open state, the second door panel 2 is superposed on the first door panel 1 in a double sliding manner. <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 two 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 center of gravity of the second door plate moves back and forth with respect to the rail and the traveling unit, the flat sliding door according to the above-described conventional technique has a structure in which the second door plate is suspended only by the upper rail without providing the lower rail. The rotational moment accompanying the change in the suspension balance of the two door plates will act on the rail and the traveling unit, and it is structurally impossible to build a heavy door plate.

  In addition, the parallel link mechanism for moving the second door plate back and forth is also structurally complicated, increasing the part cost. Furthermore, in order for the second door plate to smoothly move back and forth via the parallel link mechanism, high accuracy is required in the operation of hanging the second door plate on the rail, and the workability is poor.

  The present invention has been made in view of such circumstances, and in particular, even a heavy doorboard can be held in a mechanically balanced state with respect to the rail and can be smoothly moved. The present invention provides a flat sliding door having a simple structure that can be used and having excellent strength, workability, and economy.

In order to achieve the above-described object, the flat sliding door of the present invention has two rails formed in a straight line and arranged in parallel to each other, one being a fixed rail and the other being a movable rail.
The first door plate is fixed to the fixed rail, and the second door plate is moved to the movable rail through a suspension door so that it can slide linearly along each rail. The second door plate suspended on the movable rail is aligned with the first door plate when closed, and the first door when opened is held by being movably held in a substantially horizontal direction perpendicular to the axis of the movable rail. It is configured to overlap with the doorboard when pulled.

  That is, the present invention does not move the door plate back and forth with respect to the fixed rail as in the prior art, but moves the rail (movable rail) itself holding one door plate (second door plate) back and forth. The second door plate is moved back and forth to switch between the flush state and the pulling state. According to the present invention, the suspension state of the second door plate with respect to the movable rail becomes constant, and an unreasonable load other than the vertical load of the second door plate hardly acts on the movable rail or the suspension door wheel. Can be simplified. Accordingly, a heavy doorboard can be stably suspended and smoothly slid.

  The positional relationship between the fixed rail and the movable rail is not particularly limited, and various arrangement forms such as up and down and front and rear are possible, and it is arbitrary whether the upper or lower or front and rear rail is the movable rail. The support structure and cross-sectional shape of each rail are not particularly limited, and the fixed rail and the movable rail need not have the same cross-sectional shape. If the movable rail is a structure that is held so that it can be approached and separated from the fixed rail at least in the dimension range equal to or greater than the thickness of the door plate, by appropriately setting the suspension position of the door plate with respect to each rail, With the movable rail approaching the fixed rail, the door plates suspended on each rail can be arranged on the same plane.

  However, as a specific suspension structure of the door plate, the fixed rail and the movable rail are arranged up and down with the movable rail on the upper side, while the first door plate is suspended directly below the fixed rail, while the second door plate is In the case where it is configured to be suspended directly below the movable rail at substantially the same height as the first door plate via a bracket formed so as to bypass the front side or the rear side of the fixed rail, Since the fixed rail, the movable rail, the first door plate, and the second door plate are all aligned in the same vertical plane, it is possible to minimize the depth dimension of the entire apparatus in which the door plate is stood and slid.

  Further, as a specific structure of the rail, the cross-sectional shape of the fixed rail and the movable rail is a groove-shaped cross-sectional shape with a lip that opens downward, and an appropriate gap is provided between the fixed rail and the movable rail, When a part of the member that suspends the second door plate moves in the gap, it is advantageous to suspend a heavy door plate. A rail with a lip-shaped cross-section that opens on the lower side, for example, allows a suspended door pulley having two rows and four traveling wheels to run on the lip formed on both edges of the rail. This is because it can be stably suspended and run smoothly.

  As the rail moving means in the present invention, a runner member coupled to a plurality of locations including at least the vicinity of both ends of the movable rail, and a guide member that holds the runner member so as to be movable in a substantially horizontal direction perpendicular to the axis of the movable rail. The rail moving means can be configured with a simple structure.

  For the runner member and the guide member, various forms are possible. For example, the door-runner runner member attached to the movable rail is caused to travel along the rail-shaped guide member fixed to the wall surface or the ceiling, or The rail-like runner member attached to the movable rail can be slid along the roller-like guide member attached to the wall surface or ceiling. The rail moving means for suspending a heavy door plate is a groove-shaped cross-sectional shape with a lip that opens downward on the guide member, and a suspension door type runner member can run on this guide member Adopting the structure to be held is preferable because the movable rail can be moved back and forth smoothly.

  The rail moving means includes a biasing means for biasingly moving the movable rail in a direction in which the second door plate suspended from the movable rail is flush with the first door plate suspended from the fixed rail. It may be provided.

  As described above, in the flat sliding door of the present invention, the movable rail that suspends the second door plate is movable in the substantially horizontal direction perpendicular to the axis of the movable rail, that is, the front-rear direction of the opening surface, via the rail moving means. Since the second door plate is aligned with the first door plate when closed, and the movable rail moves so that the second door plate and the first door plate overlap each other in the closed state when opened. The suspended state of the second door plate with respect to the movable rail becomes constant, and an unreasonable load other than the vertical load of the second door plate hardly acts on the movable rail or the suspended door pulley. Therefore, the suspension structure of the door plate can be simplified, and the heavy door plate can be stably suspended and slid smoothly. Furthermore, by simplifying the suspension structure of the door plate, the work of standing the door plate with respect to the rail can be facilitated, and the production cost of members / parts for holding and sliding the door plate can be reduced.

  And since the strength of the doorboard can be simplified by simplifying the door suspension structure, flat sliding doors, which have conventionally been difficult to use only up to the weight of the storage space, can be used like a banquet hall. It can be practically used as a movable partition in a large space.

  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 fixed rail 3 for suspending the first door plate 1 and a movable rail 4 for suspending the second door plate 2, with the movable rail 4 on the upper side and the fixed rail 3 on the lower side. Are arranged above and below with appropriate gaps. Each of the fixed rail 3 and the movable rail 4 has a uniform cross section and is formed in a straight line. The first door plate 1 is suspended at a position immediately below the fixed rail 3 via two or more suspension door wheels 5 that travel along the fixed rail 3, and the second door plate 2 travels along the movable rail 4. It is suspended at a position directly below the movable rail 4 via one or more suspension door wheels 6.

  The flat sliding door of the present invention is characterized in that the movable rail 4 that suspends the second door plate 2 moves in parallel in the front-rear direction in FIG. 1 and advances / retreats the second door plate 2 suspended immediately below. have. FIG. 2A shows a state in which the flat sliding door is closed. The fixed rail 3 and the movable rail 4 overlap each other, and the first door plate 1 and the second door plate 2 suspended by the rails are fixed. Line up just below the center line R of the rail. FIG. 4B shows a state in which the flat sliding door starts to be opened, and the entire movable rail 4 protrudes forward via rail moving means provided at both ends thereof. Thereby, the 2nd door plate 2 suspended by the movable rail 4 also protrudes ahead as it is, and as shown in the figure (c), the 1st door plate 1 and the 2nd door plate 2 can be drawn in the left-right direction.

  In order to project the second door plate 2 forward, the handle 2 a (see FIG. 1) provided on the front surface of the second door plate 2 is held, and the second door plate 2 is pulled out together with the movable rail 4. Alternatively, the second door plate 2 is pushed to the left or the first door plate 1 is pushed to the right, and the repulsive force acting on the summing surfaces of the first door plate 1 and the second door plate 2 that are diagonally overlapped is used. Then, the second door plate 2 is pushed forward.

  3 to 6 are views showing a structure in the vicinity of the rail that realizes the movement of the rail and the door plate as described above, and FIG. 3 is a longitudinal sectional view showing a state in which the movable rail 4 is directly above the fixed rail 3. FIG. 4 is a longitudinal sectional view showing a state in which the movable rail 4 protrudes forward, and FIGS. 5 and 6 are longitudinal sectional views showing structures of rail moving means provided at both ends of the movable rail 4.

  Each of the fixed rail 3 and the movable rail 4 has a grooved cross-sectional shape with a lip that opens downward. 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.

  Both ends of the fixed rail 3 positioned on the lower side are fixed to the opening frame 7 (see FIGS. 2 and 5) and the like. When the frontage is large, an intermediate portion of the fixed rail 3 may be fixed to a fixing member 9 that hangs down from the ceiling surface 8, a hanging wall, a beam shape, or the like.

  Two or more suspension door cars 5 for sliding the first door plate 1 are incorporated in the fixed rail 3. The suspension door 5 is preferably such that, for example, two rows and four traveling wheels 5a roll on the lip portion 3a of the rail. According to such a combination of the suspended door pulley 5 and the fixed rail 3 having the grooved cross-sectional shape with the lip, even when the weight of the first door plate 1 is large, the first door plate 1 is stably suspended and smoothly. It can be run. The suspension door 5 may be provided with a guide wheel (not shown) that is loosely inserted between the lip portions 3a of the rail and rotates 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 is suspended by a structure such as connecting a suspension bolt 5b hanging from the suspension door wheel 5 to a reinforcing plate (not shown) fixed to the upper edge of the first door plate 1. The detailed structure of the suspension bolt 5b and the reinforcing plate is not particularly limited in the present invention.

  The movable rail 4 located on the upper side is formed with a material length slightly shorter than the material length of the fixed rail 3, and both ends thereof are held via rail moving means. The rail moving means includes a guide member 11 disposed in a substantially horizontal direction (front-rear direction in FIG. 1) orthogonal to the movable rail, and a runner member 12 that moves along the guide member 11. The illustrated guide member 11 is formed of a short rail-like member having a grooved cross-sectional shape with a lip that opens downward, similar to the fixed rail 3 and the movable rail 4, and the front end surface and the rear end surface thereof are covered by a cover plate 11 a. It is blocked. The runner member 12 is composed of a door-like member similar to the suspension door wheel 5 incorporated in the fixed rail 3, and rolls on the lip portion 11 b of the guide member 11 by two rows and four traveling wheels 12 a. The runner member 12 has a suspension bolt 12b that hangs downward. A flat connecting plate 13 attached to the suspension bolt 12b is fixed to the bottom surface of the end of the movable rail 4, so that the movable rail 4 is connected to the runner. It is connected to the member 12 and is held so as to be movable in the front-rear direction.

  However, the structure of the illustrated rail moving means is an example, and the guide member 11 and the runner member 12 may employ other rail-like members and door-wheel-like members according to known forms, such as runner members. The connection structure of 12 and the movable rail 4 can also be modified. In addition, when the opening width is large, the rail moving means can be provided not only at both ends of the movable rail 4 but also at the intermediate portion.

  Two or more suspension door carts 6 for sliding the second door plate 2 are incorporated in the movable rail 4. The illustrated suspended door 6 is the same as the suspended door 5 incorporated in the fixed rail 3. In the illustrated embodiment, two or more suspension door carts 6 are connected by the stabilizer plate 14. The stabilizing plate 14 is a band plate-like member having sufficient bending rigidity, and is formed to have a thickness smaller than a gap formed between the fixed rail 3 and the movable rail 4. It keeps the interval of the suspension door pulley 6 traveling on the road constant and plays a role of smooth traveling.

  In order to avoid interference with the fixed rail 3, the second door plate 2 is suspended by the suspension door 6 via a bracket 15 formed so as to bypass the front side of the fixed rail 3.

  The bracket 15 is, for example, a substantially L-shaped member that includes a front plate portion 15a and a bottom plate portion 15b. The upper portion of the front plate portion 15a is fixed to the stabilizing plate 14, and the bottom plate portion 15b is the upper edge of the second door plate 2. It is connected to a reinforcing plate 16 fixed to the part. The bracket 15 is attached at two locations corresponding to the position of the suspended door pulley 6. By suspending the second door plate 2 through such a bracket 15, the heights of the first door plate 1 and the second door plate 2 can be made uniform, and the movable rail 4 has moved directly above the fixed rail 3. At this time, the second door plate 2 can be prevented from interfering with the fixed rail 3. Such a structure of the bracket 15 can be slightly modified as long as interference with the fixed rail 3 can be avoided.

  In this way, the movable rail 4 and the second door plate 2 can be moved back and forth without interfering with the fixed rail 3, and the moving stroke of the movable rail 4 can be secured at least by a dimension obtained by adding an appropriate clearance to the thickness of the second door plate 2. In this case, the opening / closing movement of the door plate shown in FIG. 2 is realized.

  In the rail moving means, the second door plate 2 suspended by the movable rail 4 is attached to move the movable rail 4 in a biased direction so as to be flush with the first door plate 1 suspended by the fixed rail 3. Preferably a biasing means is provided. As such an urging means, for example, as shown in FIG. 6, a structure in which a coil spring 17 is attached to the runner member 12 and the runner member 12 is pulled backward can be considered. Conversely, the runner member 12 may be pushed back from the front side of the runner member 12 by a coil spring or the like. Instead of the coil spring, the runner member 12 can be urged by a leaf spring or a winding spring, and the runner member 12 can be attracted backward using a magnet. Alternatively, the guide member 11 may be attached with a slight inclination so that the rear side is lowered, and the runner member 12 may be naturally retracted along the inclination. By providing these urging means, it is possible to prevent the second door plate 2 from being lifted forward from the first door plate 1 in a state where the door plate is closed.

  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. When the movable rail 4 is installed on the upper side of the fixed rail 3 and protrudes forward, the bracket 15 that suspends the second door plate 2 has a shape that bypasses the same side as the protruding direction of the movable rail 4, that is, the front side of the fixed rail 3. Formed. As long as such a relationship is maintained, the present invention can be applied by arbitrarily replacing the front, rear, left, and right of each part. In other words, the second door plate 2 can be configured to be pulled back, and in this case, the bracket 15 for suspending the second door plate 2 is formed so as to bypass the rear side of the fixed rail 3.

  Moreover, this invention can also be implemented by making the vertical relationship of a fixed rail and a movable rail reverse. That is, the movable rail is installed below the fixed rail and moved back and forth. In this case, the second door panel is suspended directly below the movable rail, and the first door panel is suspended from the movable rail located on the lower side and the first door panel suspended from the fixed rail via the bracket. Avoid interference with.

  The flat sliding door as described above has a structure in which a plurality of rails are arranged up and down and the door plate can be suspended directly below, so structurally the dimension in the depth direction is small, but in the vertical direction The dimensions increase. Therefore, when viewed from the front side, members around the rail are exposed, and the overall design may be impaired. As a means for solving such a problem, for example, a guide member constituting the rail moving means is embedded in a ceiling surface or a wall surface to be hidden, or a decorative member in the form of a curtain box is installed in front of the rail to dispose the rail. Means such as hiding can be employed.

  The present invention can be implemented even if the fixed rail and the movable rail are arranged so as to be shifted back and forth toward the opening surface. The fixed rail and the movable rail may be displaced in both the front-rear direction and the up-down direction. Even in such a case, one of the movable rails is used, and the movable rail is held in the front-rear direction with respect to the fixed rail so as to be able to approach and separate at least the dimension obtained by adding an appropriate clearance to the thickness of the door plate. The first door plate and the second door plate are suspended by the rails so that the movable rails are aligned with the fixed rails close to each other, but the suspension structure is not particularly limited.

  Further, the present invention can be similarly implemented even when there are three or more door plates. Increase the number of rails according to the number of doorboards, arrange these multiple rails up and down or back and forth, and move one of the rails as a fixed rail and the other rail as a movable rail. Thus, even three or more door plates can be slid without interfering with each other, and all the door plates can be arranged on the same plane 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.

  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 rail vicinity which shows the suspension structure of the said flat sliding door, Comprising: It is a figure which shows the state which has a movable rail immediately above a fixed rail. It is a longitudinal cross-sectional view of the rail vicinity which shows the suspension structure of the said flat sliding door, Comprising: It is a figure which shows the state which the movable rail protruded ahead. It is a longitudinal cross-sectional view which shows the structure of the rail moving means in the said flat sliding door, Comprising: It is a figure which shows the cross section which cut the guide member in parallel with the rail. It is a longitudinal cross-sectional view which similarly shows the structure of the rail moving means in the said flat sliding door, Comprising: It is a figure which shows the cross section which cut the guide member perpendicularly to the rail.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st door plate 2 2nd door plate 3 Fixed rail 4 Movable rail 5 Suspended door pulley 6 of movable rail 11 Guide member 12 Runner member 15 Bracket

Claims (6)

Of the two rails formed in a straight line and arranged in parallel to each other, one is a fixed rail and the other is a movable rail. The fixed rail has a first door plate and the movable rail has a second door plate. It is suspended via a suspended door so that it can slide linearly along the rail,
The movable rail is held so as to be movable in a substantially horizontal direction orthogonal to the axis of the movable rail via the rail moving means, so that the second door plate suspended from the movable rail faces the first door plate when closed. Flat sliding doors that are arranged in a row and overlap with the first door plate when pulled open. The fixed rail and the movable rail are arranged up and down with the movable rail facing up,
While the first door plate is suspended directly below the fixed rail, the second door plate is movable at approximately the same height as the first door plate via a bracket formed so as to bypass the front side or the rear side of the fixed rail. The flat sliding door according to claim 1, wherein the flat sliding door is suspended directly under the rail.   The fixed rail and the movable rail have a lip-shaped groove-shaped cross section that opens downward, and an appropriate gap is provided between the fixed rail and the movable rail to suspend the second door plate. The flat sliding door according to claim 2, wherein the portion moves in the gap.   The rail moving means includes a runner member coupled to a plurality of locations including at least the vicinity of both ends of the movable rail, and a guide member that holds the runner member so as to be movable in a substantially horizontal direction orthogonal to the axis of the movable rail. The flat sliding door according to claim 1.   5. The flat sliding door according to claim 4, wherein a cross-sectional shape of the guide member is a groove-shaped cross-sectional shape with a lip opening downward, and a suspension door type runner member is held on the guide member so as to be able to run.   The rail moving means is provided with a biasing means for biasingly moving the movable rail in a direction in which the second door plate suspended from the movable rail is flush with the first door plate suspended from the fixed rail. The flat sliding door according to claim 1.

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