JP4487916B2 - Sliding door device - Google Patents

Description

  The present invention relates to a sliding door device, and more particularly to a sliding door device in which the sliding doors are flush with each other in a closed state.

  Conventionally, as a sliding door device provided with three sliding doors, a sliding type sliding door device is generally known in which each sliding door moves straight in parallel to be in a closed state, a right open state, or a left open state. . However, the sliding-type sliding door device with three sliding doors has a stepped shape from the front side to the rear side in the closed state, so that not only the appearance looks bad, but also the length of the upper rail for each sliding door. There is also a restriction that the degree of freedom of construction is small, such as the need to increase the overall expected dimension (depth) of the upper rail because it is necessary to arrange three rail parts in the front-rear direction orthogonal to the direction. .

  In addition, for example, as in Patent Document 1, in a sliding door device having two sliding doors, a sliding door device in which two sliding doors are flush with each other in a fully closed state and two sliding doors overlap in the front and rear directions in a fully opened state is known. This is not a sliding door device having three or more sliding doors. That is, there is no known sliding door device with three sliding doors in which the three sliding doors are flush with each other in the fully closed state.

By the way, the sliding door device with three sliding doors has a problem that does not exist in the sliding door device with two sliding doors. In other words, in the sliding door device with two sliding doors, all the sliding doors can be placed in the closed position by hitting the door of the opening, but the central position of the opening is closed without hitting the door. There is a central sliding door, and it is difficult to stop the central sliding door in the closed position. Specifically, the central sliding door of the sliding door device with which the sliding door is interlocked is closed in conjunction with the other sliding doors. At this time, since the inertia acts on the central sliding door, it is difficult to stop at the predetermined closed position.
Japanese Utility Model Publication No. 51-103524

  The present invention has been made in view of the above-described conventional problems, and in a fully closed state, the three sliding doors can be arranged in a row to form a continuous wall-like appearance and interlock with other sliding doors. Thus, an object of the present invention is to provide a sliding door device capable of stopping the central sliding door closed at a predetermined closed position.

In order to solve the above-mentioned problem, the sliding door device according to claim 1 of the present invention is a sliding door device including three sliding doors 1a to 1c, which are continuously adjacent to each other in a closed state. Is composed of a central sliding door 1c located in the center, one sliding door 1a disposed on one side of the central sliding door 1c, and the other sliding door 1b disposed on the other side of the central sliding door 1c. The sliding doors 1a to 1c are arranged so as to be flush with each other in the closed state, and when the sliding door 1b moves from the other sliding door 1b side to the one sliding door 1a side and opens, the other sliding door 1b is guided to the front of the one sliding door 1a. When the central sliding door 1c is guided behind the one sliding door 1a and the three sliding doors 1a to 1c are juxtaposed in the front and back direction, and the one sliding door 1a side is moved to the other sliding door 1b side and opened, The sliding door 1a is guided to the front of the other sliding door 1b and the central sliding door 1c is other A guiding mechanism 19 for guiding the three sliding doors 1a to 1c so as to be juxtaposed in the front-rear direction is provided by guiding the sliding door 1b rearward, and when the other sliding door 1b is opened, the operating force of the other sliding door 1b is set. The central sliding door 1c is transmitted to the central sliding door 1c to move following the other sliding door 1b, and when the one sliding door 1a is opened, the operating force of the one sliding door 1a is transmitted to the central sliding door 1c. An interlocking mechanism 15 for following and moving the one sliding door 1a is provided, and when the central sliding door 1c is closed by following the one sliding door 1a or the other sliding door 1b, the central sliding door 1c is flush with the one sliding door 1a and the other sliding door 1b. The restraining mechanism 2 for stopping at the closed position is provided , and the restraining mechanism 2 is provided with hook-like locking portions 37 that protrude in the laterally outward direction and bend forward at the projecting tip at both end portions of the central sliding door 1c. On the other hand, sliding door 1a On the other side of the sliding door 1b on the side of each central sliding door 1c, a hook-like locked portion 38 that protrudes outward in the lateral direction and bends backward at the protruding tip is provided. The portion 38 is positioned closer to the center of the sliding door device than the locking portion 37, and the protruding tip portions of the locking portion 37 and the locked portion 38 are arranged to face each other so as to be in contact with each other. To do.

According to this, the three sliding doors 1a to 1c are arranged so as to be flush with each other in the closed state by the guide mechanism 19, and the adjacent sliding doors in the state where the three sliding doors 1a to 1c are closed. There is no step between the two, and a good appearance as a series of continuous wall surfaces can be exhibited. Further, when the one sliding door 1a or the other sliding door 1b is opened / closed by the interlocking mechanism 15, the central sliding door 1c is also opened / closed in conjunction with the opening / closing operation. Here, according to the interlocking mechanism 15, when the one sliding door 1a or the other sliding door 1b is closed, the central sliding door 1c is also interlocked and closed. At this time, the inhibiting mechanism 2 causes the central sliding door 1c to be closed to the one sliding door. 1a and the other sliding door 1b are stopped at a predetermined closed position which is flush with the other sliding door 1b, that is, the central sliding door 1c is automatically stopped at the predetermined closed position without having to be manually repositioned after the closing operation. Therefore, it is possible to exhibit a good appearance as a series of continuous wall surfaces in which the one sliding door 1a, the other sliding door 1b, and the central sliding door 1c are flush with each other by an easy closing operation. In other words, in the state where the sliding door 1 is closed, the restraining mechanism 2 causes the central sliding door 1c to move the locking portions 37 at both ends from the locked portions 38 of the one sliding door 1a and the locked portions 38 of the other sliding door 1b, respectively. By restricting the operation, it is possible to stop at a predetermined closed position.

  Further, the sliding door device according to claim 2 is the sliding door device according to claim 1, wherein the deterrent mechanism 2 includes the central sliding door 1c positioned at the closed position formed on the running surface of the rail 5 on which the runner 23 provided on the central sliding door 1c rolls. The runner is provided with a restraining recess 36 that is stopped by its own weight. According to this, when the sliding door 1 is closed, the runner 23 rolls toward the bottom of the restraining recess 36 due to its own weight in the central sliding door 1c, and can stop at a predetermined closed position.

According to a third aspect of the present invention, in the sliding door device according to the first or second aspect, the guide mechanism 19 includes a common rail that moves substantially straight and guides the one sliding door 1a and the other sliding door 1b disposed at the front of the sliding door device. Part 7 and a central sliding door rail part 8 that guides the central sliding door 1c disposed at the rear part of the sliding door device so that the central sliding door 1c can run freely at the two left and right parts. The curved rail portion 13 whose front end position is the closed position of the central sliding door 1c is formed by bending forward in a semicircular shape, and the interlocking mechanism 15 is suspended from the horizontal piece portion 35b protruding backward from the one sliding door 1a. The engaging portion 35d is engaged with an engaging groove 33c provided in the central sliding door 1c, and the one sliding door 1a is provided with a mechanism for integrally moving the central sliding door 1c, and the deterrence mechanism 2 has the central sliding door 1c in the closed position. When it comes out of the engagement groove 33c The disengagement is engagement portion 35d slidably brought into contact with the rear surface of the central sliding door 1c, characterized by comprising. According to this, when the sliding door 1 is closed, the one sliding door 1a and the other sliding door 1b travel substantially straight along the common rail portion 7 along the common rail portion 7 by the guide mechanism 19, and in addition, the interlocking mechanism 15 Thus, the central sliding door 1c interlocked with the one sliding door 1a or the other sliding door 1b travels along the central sliding door rail portion 8 provided with the curved rail portion 13 along the rear portion of the sliding door device and guides the central sliding door rail portion 8 to this. The two left and right positions of the central sliding door 1c reach the front end position of the curved rail portion 13 which is the closed position. That is, when the central sliding door 1c deviates from the closed position, the sliding door is moved along the curved rail portion 13. This is accompanied by an operation of moving in parallel in the longitudinal direction of the apparatus. Here, according to the interlocking mechanism 15, when the central sliding door 1c is located at the closed position, the engaging portion provided on the one sliding door 1a. 5d comes out of the engagement groove 33c of the central sliding door 1c and is disengaged (interlocked), and according to the suppression mechanism 2, the front of the sliding door device continues along the common rail portion 7 even after the interlocking is released. Since the engaging portion 35d provided on the one sliding door 1a, which travels substantially straight, is slidably abutted on the rear surface of the central sliding door 1c positioned at the closed position, the central sliding door 1c extends along the curved rail portion 13. Since it cannot move backward, the central sliding door 1c continues to be located at the closed position, that is, it can be stopped at the predetermined closed position.

Moreover, the sliding door apparatus which concerns on Claim 4 is a sliding door apparatus provided with the 3 sliding doors 1a-1c, Comprising: The 3 sliding doors 1a-1c which adjoin continuously in the closed state are the central sliding doors located in the center 1c, one sliding door 1a disposed on one side of the central sliding door 1c, and the other sliding door 1b disposed on the other side of the central sliding door 1c. The three sliding doors 1a to 1c are closed. When the door is moved and opened from the other sliding door 1b side to the one sliding door 1a side, the other sliding door 1b is guided to the front of the one sliding door 1a and the central sliding door 1c is moved to the one sliding door 1a. When the three sliding doors 1a to 1c are juxtaposed so as to overlap in the front-rear direction and moved from the one sliding door 1a side to the other sliding door 1b side, the one sliding door 1a is moved forward of the other sliding door 1b. And the central sliding door 1c is guided behind the other sliding door 1b. A guiding mechanism 19 is provided for guiding the three sliding doors 1a to 1c so as to be juxtaposed in the front-rear direction, and when the other sliding door 1b is opened, the operation force of the other sliding door 1b is transmitted to the central sliding door 1c. The sliding door 1c is moved following the other sliding door 1b, and when the one sliding door 1a is opened, the operation force of the one sliding door 1a is transmitted to the central sliding door 1c and the central sliding door 1c is moved following the one sliding door 1a. When the central sliding door 1c is closed by following the one sliding door 1a or the other sliding door 1b, the central sliding door 1c is stopped at a closed position that is flush with the one sliding door 1a and the other sliding door 1b. the suppression mechanism 2 provided, induction mechanism 19 includes a rail 5 that three running freely guiding the sliding door 1a~1c of interlocking mechanism 15 includes a central sliding door 1c in the sliding door 1a or the other sliding door 1b while the opening and closing operation The restraining mechanism 2 includes a mechanism that is driven in a state of being overlapped in the rear direction, and the restraining mechanism 2 closes the central sliding door 1c with the other end being in contact with the central sliding door 1c only in a state where the one sliding door 1a or the other sliding door 1b is in contact with one end The rail 5 is provided with a stopper 39 that stops at a position. According to this, the one sliding door 1a, the other sliding door 1b, and the central sliding door 1c are opened and closed along the rail portion by the guide mechanism 19, and when the sliding door 1 is closed, the interlocking mechanism 15 is used. The central sliding door 1c is integrally driven in a state where it is overlapped in the front-rear direction on the one sliding door 1a or the other sliding door 1b that has been opened and closed. At this time, according to the suppression mechanism 2, the one sliding door 1a or The other sliding door 1b is brought into contact with one end of a stopper 39 provided on the rail 5, and the other end of the stopper 39 is brought into contact with the central sliding door 1c so that the central sliding door 1c can be stopped at the closed position.
Further, the sliding door device according to claim 5 is the sliding door device according to claim 4, wherein the deterrent mechanism 2 includes the central sliding door 1 c located at the closed position formed on the running surface of the rail 5 on which the runner 23 provided on the central sliding door 1 c rolls. The runner is provided with a restraining recess 36 that is stopped by its own weight. According to this, when the sliding door 1 is closed, the runner 23 rolls toward the bottom of the restraining recess 36 due to its own weight in the central sliding door 1c, and can stop at a predetermined closed position.

  The present invention has an advantage that three sliding doors can be arranged in a row in a fully closed state to exhibit a wall-like appearance, and the central sliding door that closes in conjunction with other sliding doors is stopped at a predetermined closed position. Has the advantage of gaining.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  The sliding door device of the present invention has the advantage that a wall-like appearance in which three sliding doors are arranged in a row in a fully closed state can be obtained, and in addition, a central sliding door that closes in conjunction with other sliding doors is closed in a predetermined manner. FIG. 1 to FIG. 10 show examples of the embodiment, and as a premise, it is common to the sliding door devices of the examples of the embodiment. A basic structure that can appear as a continuous wall with three sliding doors arranged in a row in a fully closed state will be described with reference to the reference examples of FIGS.

  As shown in FIG. 11 to FIG. 16, the central sliding door 1c has three sliding doors 1 in the closed state, the one sliding door 1a disposed on one side of the central sliding door 1c, and the central sliding door. And the other sliding door 1b arranged on the other side of 1c. The three sliding doors 1 are arranged in a row in the closed state as shown in FIGS. 11 (a), 12 (a), and 13. In addition, the entire three sheets are arranged so as to be flush with each other. Therefore, for example, when used as a closet door, the three sliding doors 1 can have an appearance as a series of walls that are flush with each other without a step, and the appearance is good.

  In the following description, when the three sliding doors 1 are closed so as to be flush with each other, the sliding door 1 located on the right side when viewed from the front (interior X) as shown in FIG. The sliding door 1 located on the left side will be described as the other sliding door 1b. In the following description, the left side refers to the direction where the one sliding door 1a is located when viewed from the front in the fully closed state, and the right side refers to the direction where the other sliding door 1b is located in the fully closed state. Since FIG. 11 is a bottom view of the upper rail 5 viewed from below, the drawing is made so that the left and right are reversed from the plan view shown in FIG. FIG. 13 is a perspective view as seen from the storage space Y. Therefore, when the three sliding doors 1 are closed so as to be flush with each other, one sliding door 1a is positioned on the left side and the other sliding door 1b is positioned on the right side in the drawing. It is drawn as follows. Similarly, in FIGS. 14 to 16, the left and right sides are plotted in reverse directions when viewed from the front.

  Each of the sliding doors 1 in this example has substantially the same thickness, width, and height, and each of the sliding doors 1a to 1c has a wooden sliding door body 30 as shown in FIG. , And a long vertical edge member 31 provided on both side edges of the sliding door main body 30.

  Each of the vertical edge members 31 of the sliding doors 1a to 1c includes a long hollow cylindrical edge member body 32 that is an extruded product of a light metal such as aluminum, and an end cap 33 that closes the upper end surface of the edge member body 32. It has.

  The front and rear edges of the side edges of the edge body 32 are provided with holding pieces 32a that protrude outwards over the entire length in the vertical direction, and fitting grooves 32b that open outwardly between the front and rear holding pieces 32a. Forming. The edge material main body 32 is attached to the sliding door main body 30 in a state where the side end of the sliding door main body 30 is fitted in the fitting groove 32b.

  The end cap 33 includes a fitting portion 33a and a protruding portion 33b that protrudes rearward from the fitting portion 33a. The end cap 33 is fitted into a recess that opens upwardly with the fitting portion 33 a formed by the upper end portion of the rim body main body 32, and the projecting portion 33 b opens upward formed at the upper end of the rear surface portion of the rim material main body 32. The rim material main body 32 is fixed to the rim material main body 32 by a fixing tool 34a such as a screw in a state of protruding rearward from the rim material main body 32 through a notch (not shown).

  On the other hand, the vertical edge member 31 on the right side of the sliding door 1a and the vertical edge member 31 on the left side of the other sliding door 1b form a finger hook portion 29 that also serves as a handle by denting the center of the front surface of the edge member body 32 rearward. In a state in which the three sliding doors 1a to 1c are closed flush with each other, the vertical edge members 31 of the one sliding door 1a and the other sliding door 1b are positioned in front of the vertical edge member 31 of the central sliding door 1c and overlap each other. ing.

  When the three sliding doors 1 are moved from the other sliding door 1b side to the one sliding door 1a side and opened, the other sliding door 1b is guided to the front A (inside the room X) of the one sliding door 1a and the central sliding door 1c is moved to one side. When the sliding door 1a is guided to the rear B (storage space Y side) and moved from the one sliding door 1a side to the other sliding door 1b side to open, the one sliding door 1a is moved forward A (inside the room X side) of the other sliding door 1b. And the guiding mechanism 19 for guiding the central sliding door 1c to the rear B (storage space Y side) of the other sliding door 1b, and the operation force on the other sliding door 1b side is transmitted to the central sliding door 1c, and the central sliding door 1c is transferred to the other side. An interlocking mechanism 15 is provided for following the sliding door 1b to open and close, and transmitting the operating force on the one sliding door 1a side to the central sliding door 1c to open and close the central sliding door 1c following the one sliding door 1a.

  First, the guide mechanism 19 will be described.

  The guide mechanism 19 includes upper runners 21 to 23 that are respectively attached to the upper part of the sliding door 1, lower rollers 27 that are respectively attached to the lower part of the sliding door 1, and doors that guide the upper runners 21 to 23 and the lower roller 27 so that they can run freely. The upper and lower rails 5 and 6 provided on the frame 4 are configured.

  The door frame 4 is a rectangular frame that is attached to an opening for attaching the three sliding doors 1 so as to be freely opened and closed, and is composed of upper and lower rails 5 and 6 and a left and right vertical frame 4a. FIGS. 33 to 36 show a state in which the upper rail 5 is omitted. FIGS. 11 and 17 to 20 are a bottom view of the upper rail 5 seen from below, a perspective view seen from below, and a bottom view, respectively. An exploded perspective view is shown.

  The upper runners 21 to 23 are attached to both ends in the left-right direction of the upper end of the rear surface of the sliding door 1 via reverse L-shaped metal fittings 28 as shown in FIGS. 21-23 are located in the back of the upper end part of the sliding door 1, and when the upper runners 21-23 are attached to the upper rail 5 mentioned later so that driving | running | working is possible, from the driving | running | working support part of the upper rail 5 by the upper runners 21-23. The sliding door 1 is suspended by shifting forward.

  As shown in FIGS. 17 to 20, the upper rail 5 is composed of an upper rail body 50 fixed to the housing and an upper rail cover 51 attached to the lower surface side of the upper rail body 50. The upper rail cover 51 is disposed at the left and right and middle portions in the longitudinal direction and is fixed to the upper rail body 50 by screws, and the upper rail cover 51 is disposed at the outer end of the left and right main upper rail covers 51a. A plate-like sub upper rail cover 51b fixed to the cover 51a by screws and a branch member 18 disposed between the adjacent main upper rail cover 51a and fixed to the main upper rail cover 51a or the upper rail body 50 described later. It is composed of a plate-like sub upper rail cover 51b which is fixed by screws.

  As shown in FIGS. 19A and 20B, the upper rail 5 has a groove-shaped shared rail portion 7 and a groove arranged in the front-rear directions A and B orthogonal to the longitudinal direction M of the upper rail 5. A central sliding door rail portion 8 is juxtaposed. The common rail portion 7 on the front side guides the two left and right upper runners 21 and 22 provided at the two ends of each upper end of the one sliding door 1a and the other sliding door 1a and 1b, respectively, so that it can run freely. The central sliding door rail portion 8 guides the left and right upper runners 23 provided at the upper end of the central sliding door 1c so as to run freely.

  The common rail portion 7 is formed in a substantially L shape from the both ends in the longitudinal direction M of the front rectilinear rail portion 9 to the rear B, extending in parallel with the longitudinal direction M of the upper rail 5. Bends from two bent left and right outer curved rail portions 11 and two positions closer to the inside than both ends in the longitudinal direction M of the front straight rail portion 9, and bends in a substantially L shape toward the rear B The left and right inner curved rail portions 12 are provided. An end straight rail portion 14 parallel to the front rectilinear rail portion 9 is continuously provided at the front ends of the two left and right outer curved rail portions 11 and the two left and right inner curved rail portions 12.

  By guiding the three sliding doors 1 with these two rail parts (common rail part 7, central sliding door rail part 8), it becomes possible to reduce the expected dimension K (FIG. 27) of the entire upper rail 5, For example, when used as a closet door, the amount of storage can be increased, and even if load collapse occurs in the closet, for example, the one sliding door 1a can be moved from the closed state to the other sliding door 1b side. It is possible to move forward along the outer curved rail portion 11 and the inner curved rail portion 12 and move in the opening direction (the other sliding door 1b side) along the front straight rail portion 9 to open.

  In addition, the central sliding door rail portion 8 has a rear straight traveling rail portion 10 parallel to the front straight traveling rail portion 9 and a position facing the left and right inner curved rail portions 12 in the rear straight traveling rail portion 10. Each has two left and right curved rail portions 13 that are curved in a semicircular shape toward the front A from two locations that approach each other.

  An end straight rail portion 14 extending to the rear end portions of the left and right outer curved rail portions 11 provided in the common rail portion 7 and a rear end portion of the two left and right inner curved rail portions 12 are connected. The extended end straight rail portion 14 and the front end portions of the left and right curved rail portions 13 in the central sliding door rail portion 8 are on a virtual straight line parallel to the front straight rail portion 9 and the rear straight rail portion 10. positioned. Further, the end linear rail portion 14 that is continuous with the rear end portion of the left inner curved rail portion 12 and the front end portion of the end linear rail portion 14 that is continuous with the rear end portion of the left outer curved rail portion 11. Is equal to the distance between the left and right upper runners 22 of the left sliding door 1 (i.e., the other sliding door 1b), and is connected to the rear end of the right outer curved rail portion 11. The distance between the straight rail portion 14 and the tip end portion of the straight straight rail portion 14 extending to the rear end of the right inner curved rail portion 12 is the right and left of the right sliding door 1 (that is, the one sliding door 1a). It is equal to the distance between the upper runners 21, and the distance between the front ends of the left and right curved rail portions 13 is set equal to the distance between the left and right upper runners 23 of the central sliding door 1c.

  Here, in the closed state, each upper runner 22 of the other sliding door 1b shown in FIG. 11 (a) is an end projecting from each rear end portion of the outer curved rail portion 11 and the inner curved rail portion 12 located on the left side. Each of the upper runners 23 of the central sliding door 1c enters the respective front end portions of the two left and right curved rail portions 13, and each of the upper runners 21 of the sliding door 1a is located on the right side. The sliding doors 1 are in the same plane parallel to the longitudinal direction M of the upper rail 5 by entering the end straight rail portions 14 extending from the rear end portions of the advance rail portion 11 and the inner curved rail portion 12 respectively. (I.e., three sliding doors 1 are arranged flush with each other).

  On the other hand, in the left-open state of FIG. 25, each upper runner 21 of the one sliding door 1a from the rear end portions of the outer curved rail portion 11 and the inner curved rail portion 12 located on the right side as shown in FIG. The left and right upper runners 23 of the central sliding door 1c move to the rear rectilinear rail portion 10 (in this case, the left upper runner 23 moves to the right side of the rear rectilinear rail portion 10). Each upper runner 22 of the other sliding door 1b moves to the right side of the front straight rail 9 so that the other sliding door 1b, the one sliding door 1a, and the central sliding door 1c are stacked in parallel. Is done.

  Moreover, in the right-open state of FIG. 26, each end runner 22 of the other sliding door 1b is extended from the rear end of each of the outer curved rail portion 11 and the inner curved rail portion 12 located on the left side. 14, the left and right upper runners 23 of the central sliding door 1 c move to the rear straight rail portion 10 (in this case, the left upper runner 23 moves to the left end of the rear straight rail portion 10), And each upper runner 21 of the one sliding door 1a moves to the left side of the front-side straight-ahead rail part 9, respectively, so that the one sliding door 1a, the other sliding door 1b, and the central sliding door 1c are stacked in parallel from the front.

  These left open state and right open state can be arbitrarily selected. That is, the guiding mechanism 19 moves the central sliding door 1c to a position that does not overlap the one sliding door 1a in a state where the other sliding door 1b, the central sliding door 1c, and the one sliding door 1a overlap each other, and is flush with the one sliding door 1a. The other sliding door 1b is also moved to a position where it does not overlap with the one sliding door 1a and the central sliding door 1c, and serves to guide the other sliding door 1b so as to be flush with the central sliding door 1c.

  On the other hand, upper runners 21 (or upper runners 22 or upper runners 23) are provided on the left and right sides of the upper surface of each sliding door 1, respectively. As shown in FIGS. 21 to 24, the upper runners 21 to 23 include a roller block 24 having a pair of upper rollers 26 and a plurality of auxiliary rollers 25a (or auxiliary) protruding upward from the upper surface of the roller block 24. And a roller 25b). The auxiliary roller 25a (or the auxiliary roller 25b) is guided by the branching member 18 shown in FIGS. 17, 19 (b), 20 (c), and 27 either in a straight line or in a straight line. .

  Here, as shown in FIG. 21 to FIG. 24 and FIG. 27, the upper runner 21 (or the upper runner 22) provided at each right end as viewed from the front (interior X) of the one sliding door 1 a and the other sliding door 1 b. Four auxiliary rollers 25a each having a low height at a position shifted to the rear side of the upper surface and a position shifted to the front side (two in the moving direction at the position shifted backward, and at the position shifted in the forward direction in the moving direction) 2 pieces in total, 4 pieces projecting upward, and the front side of the upper surface of the upper runner 21 (or the upper runner 22) provided at each left end of the one sliding door 1a and the other sliding door 1b. Two auxiliary rollers 25b having a high height project upward from the position shifted to the rear, and shifted to the rear side of the upper surface of the upper runner 23 provided at the right end of the central sliding door 1c. It is composed of two auxiliary rollers 25b that are high in position. The double auxiliary roller 25b protrudes upward, and is high at a position shifted to the front side of the upper surface of the upper runner 23 provided at the left end of the central sliding door 1c and a position shifted backward. Four low-sized auxiliary rollers 25a (two in the moving direction at positions shifted backward and two in the moving direction at positions shifted forward) are projected upward. .

  The branch member 18 is attached to the lower surface portion of the upper rail body 50 by screw fixing, and each branch point of the outer curved rail portion 11, the inner curved rail portion 12, and the curved rail portion 13 shown in FIGS. Are provided with auxiliary rail blocks 18a to 18f (an enlarged perspective view is shown in FIG. 18) opened downward. 17 to 20, the auxiliary rail block 18a is disposed at a position corresponding to the right outer curved rail portion 11, and is attached to the lower surface portion of the upper rail body 50, and the auxiliary rail block 18b is arranged on the right inner side. It is arranged at a position corresponding to the curved rail portion 12 and is attached to the lower surface portion of the upper rail body 50, and the auxiliary rail block 18c is arranged at a position corresponding to the left outer curved rail portion 11. The auxiliary rail block 18d is disposed at a position corresponding to the left inner curved rail portion 12 and is attached to the lower surface portion of the upper rail body 50. The auxiliary rail block 18e is disposed at a position corresponding to the curved rail portion 13 on the right side, and is attached to the lower surface portion of the upper rail body 50. It is is attached to the lower surface of the upper rail body 50 each other and disposed at a position corresponding to the curved rail portion 13 of the left side.

  The auxiliary rail block 18a is for guiding the auxiliary roller 25a having a low height, and as shown in FIG. 18 (a), a groove opened downward along the rear side of the right outer curved rail portion 11. And a curved guide rail portion 18a1. Of the four low auxiliary rollers 25a provided on the upper surface of the upper runner 21 provided at the right end of the one sliding door 1a from the opening at one end of the curved guide rail portion 18a1, the position is shifted rearward. By inserting the two auxiliary rollers 25a, the upper runner 21 of the one sliding door 1a is introduced along the outer curved rail portion 11 on the right side. In this case, the two auxiliary rollers 25a at the position shifted in the front direction among the four low auxiliary rollers 25a provided on the upper surface of the upper runner 21 are the curved guides on the lower surface of the auxiliary rail block 18a. It is configured to pass below a stepped portion 18a2 that is recessed upward from the lower end of the rail portion 18a1.

  The auxiliary rail block 18b guides the four auxiliary rollers 25a having a low height and the four auxiliary rollers 25a to advance straight, and guides the two auxiliary rollers 25b having a high height to bend. As shown in FIG. 18B, groove-shaped front and rear linear guide rail portions 18b1 and 18b2 opened downward and groove-shaped curved guide rail portions 18b3 opened downward are provided. The left half of the front linear guide rail portion 18b1 also serves as the left half of the curved guide rail portion 18b3, and the intermediate portion inclined in plan view of the curved guide rail portion 18b3 is the rear straight guide rail. Crossing the part 18b2, the middle part and the right half part of the curved guide rail part 18b3 are arranged along the front side of the right inner curved rail part 12.

  Here, as shown in FIG. 18B, the straight guide rail portions 18b1 and 18b2 and the curved guide rail portion 18b3 are at the same height, but the curved guide rail portion 18b3 is high. The groove depth is deep so that the high auxiliary roller 25b can be guided (the dent depth is deep upward), and the left half of the front straight guide rail portion 18b1 is a curved guide rail portion. Since the left half portion of 18b3 is also used, the groove depth is deep, but the right half portion has a shallow groove depth (the depth of the upward recess is shallow). Further, the rear straight guide rail portion 18b2 has a deep groove depth at the portion where the intermediate portion of the curved guide rail portion 18b3 crosses, and the other portion has a shallow groove depth, and these groove depths are shallow. The groove bottom (upper bottom) of the portion is set to be lower than the upper end of the high auxiliary roller 25b. Accordingly, as shown in FIG. 29 (b), the high auxiliary roller 25b that enters the left half of the straight guide rail 18b1 that also serves as the front half of the curved guide rail 18b3 is not attached to the straight guide rail 18b1. It cannot move to the right half part side but goes to the middle part of the curved guide rail part 18b3, and when passing through the middle part, it cannot move to the rear straight guide rail part 18b2 side, and smoothly guides to the latter half part. Is done. Further, as shown in FIG. 29 (a), the front rectilinear guide rail portion 18b1 has four low heights provided on the upper surface of the upper runner 21 attached to the right end portions of the one sliding door 1a and the other sliding door 1b. The auxiliary rollers 25a on the front side of the auxiliary rollers 25a are guided so as to advance straight, and the rearward guide rail portion 18b2 is provided at the right end of each of the one sliding door 1a and the other sliding door 1b. Among the four low-height auxiliary rollers 25a provided on the upper surface of the upper runner 21 attached to the upper runner 21, the rear two low-height auxiliary rollers 25a are guided so as to go straight.

  By the way, the four auxiliary rollers 25a, which are provided on the upper surface of the upper runner 21 attached to the right end portions of the one sliding door 1a and the other sliding door 1b, have four auxiliary rollers 25a on the front, rear, left and right, which are curved guide rails. The portion 18b3 is not crossed at the same time, and at least one auxiliary roller 25a at the front and rear is a front straight line when any low auxiliary roller 25a crosses the intersection with the bending guide rail portion 18b3. It is located in the guide rail portion 18b1 and the rear straight guide rail portion 18b2, and is configured to go straight without swinging when passing through the intersection.

  The auxiliary rail block 18c is for guiding the high auxiliary roller 25b, and as shown in FIG. 18 (f), a groove opened downward along the front side of the left outer curved rail portion 11. It has a groove-shaped curved guide rail portion 18c1 having a deep depth (a deep dent depth). Two high auxiliary rollers 25b provided to be offset from the opening of one end of the curved guide rail portion 18c1 to the front side of the upper surface of the upper runner 22 attached to the left end of the other sliding door 1b are inserted. Thus, the upper runner 22 of the other sliding door 1b is introduced along the left outer curved rail portion 11.

  In addition, the auxiliary rail block 18d guides the two auxiliary rollers 25b offset toward the front side with a high height so that the auxiliary rail block 18d moves straight, and guides the four auxiliary rollers 25a with a low height on the front side so as to bend. As shown in FIG. 18 (e), both ends and a groove-shaped linear guide rail portion 18d1 opened downward are provided on the front side, and a groove-shaped bending guide opened at one end and opened downward. The rail portion 18d2 is provided on the rear side, and the curved guide rail portion 18d2 is disposed along the rear side of the left inner curved rail portion 12.

  Here, as shown in FIG. 18E, the curved guide rail portion 18d2 is formed so as to protrude downward from the lower end of the linear guide rail portion 18d1, and the lower end of the curved guide rail portion 18d2 has a height. It is located above the upper end of the low auxiliary roller 25a. As shown in FIG. 31 (b), the straight guide rail portion 18d1 is provided with a high height offset toward the front side of the upper surfaces of the upper runners 21 and 22 attached to the left side ends of the other sliding door 1b and the one sliding door 1a. The roller 25b is inserted to guide the upper runners 21 and 22 attached to the left side ends of the other sliding door 1b and the one sliding door 1a so as to run in a straight line. Further, as shown in FIG. 31A, the bending guide rail 18d2 is provided with two low-height assists provided on the rear side of the upper surface of the upper runner 22 attached to the right end of the other sliding door 1b. By inserting the roller 25b, the upper runner 22 of the other sliding door 1b is introduced along the left inner curved rail portion 12. In this case, the upper runner 22 is attached to the right end of the other sliding door 1b. The two auxiliary rollers 25b having a low height, which are offset toward the front side of the upper surface of the runner 22, are provided on a stepped portion 18d3 that is recessed above the lower end of the curved guide rail portion 18d2 on the lower surface portion of the auxiliary rail block 18d. It is configured to pass below. Since the lower end of the straight guide rail portion 18d1 is open to the upper bottom of the stepped portion 18d3, the low auxiliary roller 25a does not enter the straight guide rail portion 18d1.

  Further, the auxiliary rail block 18e guides the four auxiliary rollers 25a having a low height provided on the upper surface of the upper runner 23 attached to the right side of the central sliding door 1c so as to go straight and the upper runner 23 attached to the left side. As shown in FIG. 18 (c), two rows of front and rear grooves in the shape of grooves opened at both ends and below are provided for guiding the two high auxiliary rollers 25b provided on the upper surface of the roller to bend. Linear guide rail portions 18e1 and 18e2 and groove-shaped curved guide rail portions 18e3 that are open at both ends and downward in the shape of an arc. The rear straight guide rail portion 18e2 has a left side portion and a right side portion that are also used as the left side portion and the right side portion of the curved guide rail portion 18e3, respectively. Further, both ends of the arcuate intermediate portion of the curved guide rail portion 18e3. Each of the portions inclined in plan view crosses the front straight guide rail portion 18e2, and an intermediate portion of the bending guide rail portion 18e3 is disposed along the front side of the curved rail portion 13.

  Here, as shown in FIG. 18C, the straight guide rail portions 18e1 and 18e2 and the curved guide rail portion 18e3 are at the same height, but the curved guide rail portion 18e3 has a height. The depth of the groove is deep so that the auxiliary roller 25b having a high height can be guided (the depth of the dent is deep upward), and the right and left sides of the rear straight guide rail portion 18e1 are curved guide rails. Since the right side portion and the left side portion of the portion 18e3 are also used, the groove depth is deep, but the intermediate portion of the linear guide rail portion 18e1 has a shallow groove depth (a shallow dent depth is shallow). Further, the front linear guide rail portion 18e2 has a deep groove depth at the portion where both ends of the intermediate portion of the curved guide rail portion 18e3 cross, and the other portion has a shallow groove depth. The shallow groove bottom (upper bottom) is set to be lower than the upper end of the high auxiliary roller 25b. Accordingly, as shown in FIG. 29 (d), the auxiliary roller 25b having a high height that enters the left side or the right side of the rear straight guide rail 18e1 that also serves as the front side and the rear side of the curved guide rail 18e3. Cannot move to the middle part of the straight guide rail part 18e1 but goes to the middle part of the curved guide rail part 18e3. In this case, when passing further through the intermediate portion, it cannot move to the previous straight guide rail portion 18e2 side, and is smoothly guided to the intermediate portion. Further, as shown in FIG. 29C, the rear straight guide rail portion 18e1 is the rear of the four low auxiliary rollers 25a provided on the upper surface of the upper runner 23 attached to the right end of the central sliding door 1c. The two low-side auxiliary rollers 25a are guided so as to go straight, and the front straight guide rail portion 18e2 is provided on the upper surface of the upper runner 21 attached to the right end of the central sliding door 1c. Among the four low auxiliary rollers 25a, the front two low auxiliary rollers 25a are guided so as to go straight.

  By the way, the four low auxiliary rollers 25a provided on the upper surface of the upper runner 21 attached to the right end of the central sliding door 1c have four auxiliary rollers 25a on the front, rear, left and right that simultaneously traverse the curved guide rail portion 18e3. When one of the auxiliary rollers 25a having a low height crosses the intersection with the curved guide rail portion 18e3, at least one auxiliary roller 25a at the front and rear is provided with the front linear guide rail portion 18e2, It is located in the rear straight guide rail portion 18e1 and is configured to go straight without swinging when passing through the intersection.

  Also, the auxiliary rail block 18f guides the two auxiliary rollers 25b, which are provided on the upper surface of the upper runner 23 attached to the left side of the central sliding door 1c and offset to the rear side, to move straight, and is attached to the right side. The upper and lower auxiliary rollers 25a provided on the upper surface of the upper runner 23 are guided so as to bend and open at both ends and downward as shown in FIG. 18 (d). A groove-shaped linear guide rail portion 18f1 is provided on the rear side, and an arcuate groove-shaped curved guide rail portion 18f2 having both ends open and opened downward is provided on the front side, and the linear guide rail portion 18f1. Are arranged along the rear side of the rear straight rail portion 10, and the curved guide rail portion 18 d 2 is arranged along the front side of the left curved rail portion 13.

  Here, the bending guide rail portion 18f2 is formed so as to protrude downward from the lower end of the linear guide rail portion 18f1, and the lower end of the bending guide rail portion 18f2 is higher than the upper end of the auxiliary roller 25a having a low height. positioned. As shown in FIG. 30, a high-height auxiliary roller 25b that is offset from the rear side of the upper surface of the upper runner 23 attached to the left end of the central sliding door 1c is inserted into the straight guide rail portion 18f1. Thus, the upper runner 23 attached to the right end of the central sliding door 1c is guided so as to travel linearly. In addition, as shown in FIG. 30, the curved guide rail portion 18f2 includes two low-profile auxiliary rollers 25b provided on the front side of the upper surface of the upper runner 22 attached to the right end of the central sliding door 1c. By being inserted, the upper runner 23 attached to the right side of the central sliding door 1c is introduced along the curved rail portion 13 on the right side. In this case, the upper runner attached to the right end of the central sliding door 1c. The two auxiliary rollers 25b having a low height and provided on the rear side of the upper surface of the upper surface 22 are provided on the lower portion 18f3 of the lower surface of the auxiliary rail block 18f that is recessed above the lower end of the curved guide rail portion 18d2. It is configured to pass below. Since the lower end of the straight guide rail portion 18f1 is open to the upper bottom of the stepped portion 18f3, the auxiliary roller 25a having a low height does not enter the straight guide rail portion 18f1.

  Note that a lower roller 27 protrudes from one central portion of the lower end of each sliding door 1. The lower roller 27 is attached to the center position of each lower end of the sliding doors 1 to 3 via an L-shaped bracket (not shown). As shown in FIGS. 12 to 16, the lower rail 6 that guides the lower roller 27 has left and right curved rail portions 42 and 43 that are inclined toward the rear B from both ends in the longitudinal direction M of the common rail portion 101. Are provided, and a lower end straight rail portion 45 parallel to the common rail portion 101 is continuously provided from the end portions of the curved rail portions 42 and 43. One curved rail portion 44 that is curved in a semicircular shape toward the front A from the central portion of the central sliding door rail portion 102 that is parallel to the shared rail portion 101 and located on the rear side is provided.

  Here, the position of the curved rail portion 42 on the left side of the lower rail 6 is opposed to the intermediate position between the outer curved rail portion 11 and the inner curved rail portion 12 on the left side of the upper rail 5. The position of the right curved rail portion 43 of the upper rail 5 is opposed to the intermediate position between the right outer curved rail portion 11 and the inner curved rail portion 12 of the upper rail 5, and the curved rail portion 44 of the lower rail 6 The position is opposite to the intermediate position between the left and right curved rail portions 13, 13 of the upper rail 5.

  And the upper end part of each sliding door 1 is suspended and supported by two right and left upper runners 21 (22, 23), while the three sliding doors 1 are flush with each other and closed, the lower roller 27 of the sliding door 1a. Is located at the lower end linear rail portion 45 connected to the rear end portion of the right curved rail portion 43, the lower roller 27 of the central sliding door 1c is located at the front end portion of the curved rail portion 44, and the other sliding door 1b The lower roller 27 is positioned on the lower end straight rail portion 45 provided continuously with the rear end portion of the left curved rail portion 42. 24, the lower roller 27 of the sliding door 1a is positioned at the rear end of the right curved rail portion 43, and the lower roller 27 of the other sliding door 1b is positioned at the right end of the straight portion of the common rail portion 101. And the lower roller 27 of the center sliding door 1c is located in the right end of the linear part of the rail part 102 for center sliding doors. 25 (c), the lower roller 27 of the other sliding door 1b is positioned on the lower end straight rail portion 45 connected to the rear end portion of the left curved rail portion 42, and the one sliding door 1a The lower roller 27 is located at the right end of the straight portion of the common rail portion 101, and the lower roller 27 of the central sliding door 1c is located at the left end of the straight portion of the central sliding door rail portion 102.

  In the above example, the lower end linear rail portion 45 provides the same effect as the end linear rail portion 14 provided on the upper rail, and the sliding door 1a and the other sliding door 1b are fully closed. The normal position in the direction can be prevented from being stepped, and even in the opened state, it can be surely positioned in the normal position. In the fully opened state, the one sliding door 1a or the other sliding door 1b is more than the regular position. Also, the second sliding door 1b or the first sliding door 1a is shifted to the front side, so that it does not collide or rub when closed, and can be smoothly and reliably positioned at the normal position and closed.

  As described above, the lower end portion is guided to the lower rail 6 by one lower roller 27. As a result, the running of each sliding door 1 can be sufficiently stabilized, and by using one lower roller 27, There is also an advantage that the groove shape of the lower rail 6 can be made simpler than the groove shape of the upper rail 5 and the cost of the lower rail 6 can be reduced.

  Next, the interlocking mechanism 15 will be described.

  As shown in FIG. 32 etc., long engaging grooves 33c are formed in the front and rear on the upper end surfaces of the left and right ends of the central sliding door 1c. An engagement member that can engage with the engagement groove 33c from the upper end of the right end of the one sliding door 1a and the left end of the other sliding door 1b (that is, the end of each of the one sliding door 1a and the other sliding door in the closing direction). 35 projects rearward. The interlocking mechanism 15 is constituted by the engaging groove 33c and the engaging member 35.

  The engaging member 35 of the one sliding door 1a and the engaging member 35 of the other sliding door 1a are bilaterally symmetric, and each engaging member 35 protrudes backward from the upper end of the vertical piece-shaped sliding door mounting portion 35a. An angle 35c made of a metal fitting having an L-shaped cross section and an engaging portion 35d protruding downward from the rear end of the horizontal piece 35b. That is, the engaging portion 35d is formed at the protruding position behind the sliding doors 1a and 1b via the horizontal piece portion 35b.

  The angle 35c is attached by fixing the sliding door mounting portion 35a to the rear surfaces of the upper ends of the one sliding door 1a and the other sliding door 1b with a plurality of fixing tools 34b such as screws. When attaching the angle 35c to the one sliding door 1a and the other sliding door 1b, the rear surface of the upper end portion of the right end portion of the one sliding door 1a and the rear surface of the upper end portion of the left end portion of the other sliding door 1b (that is, the rear surface of the upper end portion of the vertical edge member 31). ) Is formed with a recess 32f. The depth of the recess 32f is equal to or greater than the thickness dimension of the sliding door mounting portion 35a. The angle 35c is mounted in a state where the sliding door mounting portion 35a is in contact with the bottom surface of the recess 32f, and the sliding door mounting portion 35a of the angle 35c is housed so as to be completely contained in the recess 32f. When the angle 35c is attached to the central sliding door 1c, the lower surface of the horizontal piece 35b is disposed above the central sliding door 1c and at substantially the same level as the upper end surface of the one sliding door 1a and the upper end surface of the other sliding door 1b. .

  On the other hand, the rear end of the horizontal piece 35b of the angle 35c of the sliding door 1a protrudes to the left, and the rear end of the horizontal piece 35b of the angle 35c of the other sliding door 1b protrudes to the right. The engaging portion 35d protrudes. The engaging portion 35d is movable along the engaging groove 33c while being engaged with the engaging groove 33c, and the engaging portion 35d of the present example is rotatable about the vertical axis on the horizontal piece portion 35b. It consists of a roller that supports the shaft. The roller constituting the engaging portion 35d is formed of a soft material such as rubber, so that the impact at the time of interlocking engaged with the engaging groove 33c can be reduced, and the sound generated at the time of interlocking can be reduced. . In this example, the engaging portion 35d is made of a soft material such as rubber. However, the entire end cap 33 that receives the engaging portion 35d and the push-side guide that is a portion to which the engaging portion 35d of the end cap 33 is engaged. The surface 33f and the pulling guide surface 33g may be formed of a soft material such as rubber, and in this case, the same effect is obtained.

  The engagement groove 33c for the one sliding door 1a formed on the right side of the central sliding door 1c and the engagement groove 33c for the other sliding door 1b formed on the left side are symmetrical, and each engagement groove 33c is a vertical edge of the central sliding door 1c. The material 31 is formed on the upper surface of the end cap 33. That is, in this example, the end cap 33 is a receiving member with which the engaging portion 35d of the engaging member 35 is engaged.

  Each engagement groove 33c is a substantially L-shaped groove in plan view, and has a groove shape parallel to the left-right direction, and one end is on the outer side (that is, on the right engagement groove 33c, on the right side, and on the left side). The joint groove 33c includes a protrusion insertion port 33d that opens to the left) and a guide groove 33e that extends forward from the other end of the protrusion insertion port 33d. The guide groove portion 33e is a linear groove parallel to the front-rear direction, and extends rearward from the front end portion of the fitting portion 33a of the end cap 33 to reach the protruding portion 33b. That is, the guide groove portion 33e of the engagement groove 33c has a rear end portion positioned in front of the sliding door main body 30 of the central sliding door 1c, and its longitudinal length is longer than the thickness dimension of the sliding door main body 30 of the central sliding door 1c. Yes. Here, the inner side surface of the guide groove 33e of each engagement groove 33c (that is, the left side surface in the right engagement groove 33c and the right side surface in the left engagement groove 33c) is a push-side guide. The surface 33f and the outer side surface (that is, the right side surface in the case of the right engagement groove 33c and the left side surface in the case of the left engagement groove 33c) are defined as the pull side guide surface 33g. Both the push-side guide surface 33f and the pull-side guide surface 33g are vertical surfaces parallel to the front-rear direction.

  Next, the operation will be described. For example, from the state in which the three sliding doors 1a to 1c shown in FIG. 21 (FIGS. 11A, 12A, and 13) are closed to be flush with each other, FIG. 25B and FIG. When the other sliding door 1b is moved toward the one sliding door 1a, the engaging portion 35d of the other sliding door 1b has a protruding portion insertion port of the engaging groove 33c so that the other sliding door 1b and the central sliding door 1c overlap as shown in FIG. 33d to move to the engagement groove 33c from the protrusion insertion port 33d formed at the rear end of the engagement groove 33c when the other sliding door 1b and the central sliding door 1c substantially overlap each other as shown in FIG. It is inserted and engaged with the rear end portion of the push-side guide surface 33f of the engagement groove 33c (the portion facing the protrusion insertion port 33d), and thereafter, the engagement portion 35d of the other sliding door 1b is pushed by the push-side of the engagement groove 33c. Move to the front end side of the engaging groove 33c while engaging with the guide surface 33f. And, and the other sliding door 1b and the central sliding door 1c as shown in Figure 24 at the stage of separating the front-rear direction, the engaging portion 35d is stopped in engagement when the front end of the push-side guide surface 33f of the engagement groove 33c. As a result, the central sliding door 1c is interlocked with the other sliding door 1a from the stage where the other sliding door 1b and the central sliding door 1c substantially overlap to the left-opened state where the three sliding doors 1a to 1c are moved to the right side. Move to.

  Conversely, when the three sliding doors 1a to 1c shown in FIG. 24 are moved in the direction of closing the other sliding door 1b in the order of FIGS. The portion 35d hits the rear end portion of the pulling side guide surface 33g of the engaging groove 33c until the stage immediately before the central sliding door 1c moves to the central closed position, and is engaged with the other sliding door. 1b and the central sliding door 1c move toward the front end side of the engaging groove 33c while engaging and engaging with the pulling side guide surface 33g of the engaging groove 33c at the stage of starting approaching in the front-rear direction, and thereafter, as shown in FIG. The sliding door 1c reaches the front end of the engaging groove 33c when it has completely moved to the closed position (when the other sliding door 1b and the central sliding door 1c have approached in the front-rear direction). As a result, the central sliding door 1c is interlocked with the other sliding door 1b until the central sliding door 1c moves from the fully opened state brought to the right side to the center which is the closed position. When the central sliding door 1c reaches the closed position, the engaging portion 35d reaches the front end portion of the engaging groove 33c and does not hit the pulling guide surface 33g as shown in FIG. Is released and moves outward from the protrusion insertion port 33d. Thereby, the other sliding door 1b will move to a closed position independently.

  According to the above configuration, since the other sliding door 1b and the central sliding door 1c can be interlocked by the interlocking mechanism 15, it is not necessary to manually open and close the central sliding door 1c when the left sliding state or the closing state is set. Is very easy.

  Further, as shown in FIG. 21, engagement grooves 33c are provided on both ends of the central sliding door 1c, and the engaging members 35 are provided on the left end (the handle side) of the other sliding door 1b and the right end (the handle side) of the one sliding door 1a, respectively. Thus, the interlocking mechanism 15 works in both the left and right openings. That is, in the fully closed state in which the three sliding doors 1a to 1c are arranged in a line with no step, the one sliding door 1a is moved toward the other sliding door 1b, so that it is the same as the other sliding door 1b and the central sliding door 1c. In addition, the interlocking mechanism 15 can move the central sliding door 1c in conjunction with the one sliding door 1a.

  When the three sliding doors 1a to 1c are closed in a flush state, when the one sliding door 1a is moved toward the other sliding door 1b, and from the right open state where the three sliding doors 1a to 1c are moved to the left side. When the sliding door 1a is moved in the closing direction, the engaging portion 35d of the one sliding door 1a is engaged with the engaging groove 33c on the right side of the central sliding door 1c. At this time, the engaging groove 33c of the engaging portion 35d is engaged. Since the engagement to is the same as that of the other sliding door 1b and the central sliding door 1c, the description thereof is omitted.

  Examples of embodiments of the present invention will be described below. Each of the embodiments of the present invention has the configuration of the above reference example as a basic configuration, and in addition, when the central sliding door 1c is closed by following the one sliding door 1a or the other sliding door 1b, It has a deterrent mechanism 2 for stopping at the closed position that is flush with the sliding door 1a and the other sliding door 1b. Therefore, description of the basic configuration overlapping with the previous reference example is omitted, and only the suppression mechanism 2 will be described.

  1 to 3 show examples of embodiments of the present invention. The restraining mechanism 2 of this example includes a closing position guiding mechanism 16 that guides the central sliding door 1c to the closing position, and a stop mechanism 17 that stops the central sliding door 1c that is about to move by inertia. As shown in FIG. 2, the closing position guiding mechanism 16 is configured by a restraining recess 36 that rolls and stops the upper runner 23 of the central sliding door 1 c toward its closed position by its own weight. Specifically, the restraining recess 36 is formed on the upper surface of the sub-upper rail cover 51b located on the curved rail portion 13 on which the upper roller 26 of the central sliding door 1c rolls, along the curved rail portion 13, and is in the closed position. The central sliding door 1c located at the upper runner 23 is formed so as to be gently recessed so that the front end portion of the curved rail portion 13 is located at the deepest portion (see FIGS. 6, 7 and 9). Further, as shown in FIG. 1, the stopping mechanism 17 is provided with hook-like locking portions 37 that protrude in the laterally outward direction and bend forward at the protruding tip at both side ends of the central sliding door 1c, and the one sliding door 1a and the other sliding door 1b is provided with a hook-like locked portion 38 that protrudes laterally outward and bends backward at the protruding tip at the side end portion of each central sliding door 1c side. The portion 38 is positioned closer to the center of the sliding door device than the locking portion 37, and the protruding tip portions of the locking portion 37 and the locked portion 38 are arranged to face each other so as to come into contact with each other. ing. Specifically, a locked portion 38 is formed on the vertical edge material 31 on the left side of the one sliding door 1a and the vertical edge material 31 on the right side of the other sliding door 1b, and the locking portions 37 are formed on both vertical edge materials 31 of the central sliding door 1c. The locking portion 37 and the locked portion 38 are formed at the protruding tip of the locking portion 37 when the sliding door 1 is closed with the one sliding door 1a, the other sliding door 1b, and the central sliding door 1c being flush with each other. The (front end) is formed so as to be positioned in front of the protruding front end (rear end) of the locked portion 38. Moreover, the upper roller 26 of the central sliding door 1c is the curved rail portion 13 at a position where the protruding leading end of the locking portion 37 of the central sliding door 1c contacts the protruding leading end of the locked portion 38 of the one sliding door 1a or the other sliding door 1b. Is set to a position (for example, an end portion of the suppression recess 36 where the upper runner 23 indicated by a dotted line is positioned).

  That is, in this example, as in the previous reference example, the one sliding door 1a is closed from the right-open state as shown in FIG. 1A, and the interlocking mechanism 15 interlocks the central sliding door 1c with the one sliding door 1a to perform the closing operation. When this is done, the engaging portion 35d and the engaging groove 33c are disengaged when the central sliding door 1c reaches the closed position where it is flush with the other sliding door 1b as shown in FIG. As shown in FIG. 1C, the central sliding door 1c moves beyond the closed position due to inertia, but the locking portion 37 of the central sliding door 1c comes into contact with the locked portion 38 of the other sliding door 1b. The central sliding door 1c is stopped at a predetermined closed position by the rolling of the upper roller 26 toward the deepest portion of the restraining recess 36 due to the impact reaction force of contact and the weight of the central sliding door 1c. The one sliding door 1a is closed as it is toward the right end of the sliding door device to reach a predetermined closed position. As shown in FIG. 1D, in the fully closed state, the central sliding door 1c is flush with the one sliding door 1a and the other sliding door 1b, and exhibits a good appearance as a series of continuous wall surfaces. In this way, according to the deterrent mechanism 2, the central sliding door 1c is automatically stopped at a predetermined closing position that is flush with the one sliding door 1a and the other sliding door 1b. That is, the central sliding door 1c is predetermined by hand after the closing operation. Since it is automatically stopped at a predetermined closed position without having to be repositioned, a series of continuous wall surfaces in which the one sliding door 1a, the other sliding door 1b and the central sliding door 1c are flush with each other by an easy closing operation. The good appearance is made possible to appear. In the fully closed state of this example, each locked portion 38 is positioned closer to the center of the sliding door device than the locking portion 37, and each protruding tip of the locking portion 37 and the locked portion 38 is provided. The parts are arranged so as to be able to come into contact with each other, and the locking part 37 and the locked part 38 come into contact with each other, so that it is impossible to open and close only the central sliding door 1c from the fully closed state. Thus, only the central sliding door 1c is prevented from being opened and closed.

  In addition, although the latching | locking part 37 and the to-be-latched part 38 of this example are integrally formed in the vertical edge material 31, it is another body which comprises the latching | locking part 37 and the to-be-latched part 38, for example like FIG. It is also preferable to attach the abutting member 40 to the vertical edge member 31. By using the separate abutting member 40, the abutting member 40 can be made of, for example, a resin that is different from the metal vertical edge member 31. The sliding door device is attached to the opening of the building at the site construction, and there is a possibility that the sliding door 1 may be attached with a slight inclination due to the building installation or construction error. Although the stop portion 38 may come into contact with a place that is not planned to come into contact with the sliding door 1, scratches on the sliding door 1 can be suppressed by using the resin abutting member 40. The contact noise can also be reduced. Moreover, it is also preferable to attach the abutting member 40 to the vertical edge member so that the protruding distance to the front and rear thereof can be adjusted. Even if the sliding door 1 warps due to secular change or the like, it can be easily adjusted to ensure good contact between the locking portion 37 and the locked portion 38.

  4 and 5 show other examples of the embodiment of the present invention. The restraining mechanism 2 of this example includes a closing position guiding mechanism 16 and a mechanism that slidably abuts the engaging portion 35d released from the engaging groove 33c and disengaged from the rear surface of the central sliding door 1c. It comprises a stop mechanism 17. Specifically, the stop mechanism 17 of the present example is configured so that the end cap 33 of each end cap 33 attached to both ends of the central sliding door 1c extends from the protrusion insertion port 33d of the engagement groove 33c to the side end of the end cap 33. A sliding plate member 41 on which the engaging portion 35d protruding from the protruding portion insertion port 33d is slid is disposed over the rear surface portion. The rear surface of the sliding plate member 41 constitutes the rear surface of the central sliding door 1c. Further, the position where the engagement portion 35d is disengaged from the engagement groove 33c is a position where the upper roller 26 of the central sliding door 1c is located in the restraining recess 36 of the curved rail portion 13 (for example, the upper side indicated by a dotted line). The end of the restraining recess 36 where the runner 23 is located).

  That is, in this example, as in the previous reference example, the one sliding door 1a is closed from the right-open state as shown in FIG. 4A, and the interlocking mechanism 15 interlocks the central sliding door 1c with the one sliding door 1a. 4B, the central sliding door 1c reaches the closed position where it is flush with the other sliding door 1b, and the engaging portion 35d of the first sliding door 1a and the engaging groove 33c of the central sliding door 1c are engaged. Canceled. Subsequently, as shown in FIG. 4C, the engagement portion 35d of the sliding door 1a is slid in a rolling state on the rear surface of the sliding plate member 41 while being closed only toward the right end of the sliding door device. The central sliding door 1c near the closed position has left and right upper runners 23 inserted into the curved rail portion 13. When the central sliding door 1c in this state shifts to the left and right of the sliding door device, the sliding door device 13 is moved along the curved rail portion 13. This is accompanied by an operation of translating in the front-rear direction. As described above, when the engaging portion 35d of the one sliding door 1a slides on the rear surface of the sliding plate member 41 of the central sliding door 1c, Since the central sliding door 1c that is going to move backward is pressed by the joint portion 35d, the central sliding door 1c that is going to move due to inertia is stopped on the spot. The one sliding door 1a is closed as it is toward the right end of the sliding door device and reaches a predetermined closed position as shown in FIG. 4 (d). In the middle of this, the engaging portion 35d of the one sliding door 1a is a central sliding door. The sliding to the rear surface of the sliding plate member 41 of 1c is released. In this example, the engaging portion 35d is disengaged from the engaging groove 33c, and the position where the engaging portion 35d slides on the sliding plate member 41 and the central sliding door 1c is stopped is above the central sliding door 1c. Since the roller 26 is set at a position located in the restraining recess 36 of the curved rail portion 13, after the sliding of the engaging portion 35d to the sliding plate member 41 is released, the weight of the central sliding door 1c is reduced. As a result, when the upper roller 26 rolls toward the deepest part of the restraining recess 36, the central sliding door 1c is stopped at a predetermined closed position where it is flush with the one sliding door 1a and the other sliding door 1b as shown in FIG. It has become so. As shown in FIG. 4D, in the fully closed state, the central sliding door 1c is flush with the one sliding door 1a and the other sliding door 1b and exhibits a good appearance as a series of continuous wall surfaces. In this way, according to the deterrent mechanism 2, the central sliding door 1c is automatically stopped at a predetermined closing position that is flush with the one sliding door 1a and the other sliding door 1b. That is, the central sliding door 1c is predetermined by hand after the closing operation. Since it is automatically stopped at a predetermined closed position without having to be repositioned, a series of continuous wall surfaces in which the one sliding door 1a, the other sliding door 1b and the central sliding door 1c are flush with each other by an easy closing operation. The good appearance is made possible to appear. Since the central sliding door 1c is not in contact with the one sliding door 1a and the other sliding door 1b in the fully closed state of this example, only the central sliding door 1c can be opened and closed from the fully closed state as shown in FIG. Usability has been improved. Of course, in the case of this example, it is preferable to form the finger hanging portion 29 in the central sliding door 1c (for example, on the vertical edge members 31 on both sides) because the central sliding door 1c can be easily opened and closed.

  6 to 10 show still other examples of the embodiment of the present invention. The restraining mechanism 2 of this example is such that the other end of the stopper 39 is the central sliding door only when the one sliding door 1a or the other sliding door 1b is in contact with one end of the stopper 39 provided on the upper rail 5 and the closing position guiding mechanism 16 above. It is comprised with the stop mechanism 17 which consists of a mechanism contact | abutted to 1c. The stoppers 39 in the stop mechanism 17 of the present example are respectively disposed on the outside adjacent portions of the curved rail portions 13 of the upper rail 5. More specifically, the stopper 39 is pivotally supported by pivoting a supporting portion 39a provided at one end thereof on the sub-upper rail cover 51b, and can be rotated horizontally, and via a biasing member (not shown) such as a spring. 51b. Further, a contact protrusion 39b is suspended in the vicinity of the pivotal support 39a of the stopper 39, and the contact protrusion 39b is inserted into a long long hole 46 before and after being drilled in the sub upper rail cover 51b, and the sub upper rail cover. It protrudes below 51b (below the upper rail 5). The abutting protrusion 39b projecting downward from the upper rail 5 can abut against the rear edge of the horizontal piece 35b of the engaging member 35 provided on the one sliding door 1a or the other sliding door 1b which is moved by being closed. Yes. In addition, the corner | angular part of the rear edge and outer edge in the horizontal piece part 35b of the engaging member 35 of the said one sliding door 1a or the other sliding door 1b is an R shape for making it contact | abut with the contact protrusion 39b suppressing an impact. The chamfered portion 35e is formed. The stopper 39 is positioned at a position where the other end of the stopper 39 does not come into contact with the upper runner 23 traveling on the curved rail portion 13 by the urging force of the urging member. Alternatively, when the horizontal piece 35b of the engaging member 35 of the other sliding door 1b comes into contact with the contact protrusion 39b, the contact protrusion 39b is pushed rearward by the horizontal piece 35b, and the stopper 39 is centered on the pivot 39a. It rotates, and the other end of the stopper 39 is positioned at a position where it abuts on the upper runner 23 traveling on the curved rail portion 13. In this example, the position where the upper runner 23 traveling on the curved rail portion 13 abuts against the stopper 39 is a position where the upper roller 26 of the central sliding door 1c is located in the restraining recess 36 of the curved rail portion 13 (for example, a dotted line). The upper runner 23 shown in FIG.

  That is, in this example, as in the previous reference example, when the one sliding door 1a is closed from the right-open state, and when the central sliding door 1c is interlocked with the one sliding door 1a by the interlocking mechanism 15, the central sliding door 1c is moved. The engaging portion 35d and the engaging groove 33c are disengaged when reaching the closed position where the other sliding door 1b is flush with the sliding door 1b. At this time, the central sliding door 1c moves beyond the closed position due to inertia. However, the one-way sliding door 1a is continuously closed alone toward the right end of the sliding door device, and as shown in FIGS. 6 (a), 7 and 8, the side of the engaging member 35 of the one-side sliding door 1a. The piece 35b abuts against the abutment protrusion 39b of the stopper 39, the stopper 39 rotates around the pivotal support 39a at one end against the urging force of the urging member, and the other end of the stopper 39 The upper runner 23 of the central sliding door 1c that has moved beyond the closed position comes into contact, that is, the central sliding door 1c that has been slid by inertia is stopped. Here, the contact of the engaging member 35 of the one sliding door 1a with the contact protrusion 39b of the stopper 39 is performed over the rear edge of the horizontal piece 35b, and is performed for a predetermined time. The central sliding door 1c after the upper runner 23 comes into contact with the other end of the stopper 39 rolls the upper roller 26 toward the deepest part of the restraining recess 36 due to the impact reaction force of the contact and the weight of the central sliding door 1c. Therefore, the sliding door is stopped at a predetermined closed position that is flush with the one sliding door 1a and the other sliding door 1b. 6 (b), FIG. 9, and FIG. 10, when the one sliding door 1a is closed and operated continuously toward the right end of the sliding door device, the lateral piece 35b of the engaging member 35 of the one sliding door 1a The contact state of the stopper 39 with the contact protrusion 39b is released, and the stopper 39 is again brought into a position where the other end of the stopper 39 does not contact the upper runner 23 of the central sliding door 1c by the biasing member. Will be located. In the fully closed state, the central sliding door 1c is flush with the one sliding door 1a and the other sliding door 1b, and exhibits a good appearance as a series of continuous wall surfaces. In this way, according to the deterrent mechanism 2, the central sliding door 1c is automatically stopped at a predetermined closing position that is flush with the one sliding door 1a and the other sliding door 1b. That is, the central sliding door 1c is predetermined by hand after the closing operation. Since it is automatically stopped at a predetermined closed position without having to be repositioned, a series of continuous wall surfaces in which the one sliding door 1a, the other sliding door 1b and the central sliding door 1c are flush with each other by an easy closing operation. The good appearance is made possible to appear. In the fully closed state of this example, the central sliding door 1c is not in contact with the one sliding door 1a and the other sliding door 1b, and the stopper 39 is positioned at a position where the other end does not contact the upper runner 23 of the central sliding door 1c. Thus, for example, as shown in FIG. 5, it is possible to open and close only the central sliding door 1c from the fully closed state, and the usability is improved. Of course, in the case of this example, it is preferable to form the finger hanging portion 29 in the central sliding door 1c (for example, on the vertical edge members 31 on both sides) because the central sliding door 1c can be easily opened and closed.

  In the present embodiment, each of the stop mechanisms 17 that stop the central sliding door 1c that is about to move by inertia and the closing position guiding mechanism 16 are used together to constitute the deterring mechanism 2. It goes without saying that the deterring mechanism 2 may be configured by the closing position guiding mechanism 16 and each stopping mechanism 17. In this case, in each stop mechanism 17, the position where the central sliding door 1c slid by inertia is stopped may be set to the closed position of the central sliding door 1c which is flush with the one sliding door 1a and the other sliding door 1b. is there.

BRIEF DESCRIPTION OF THE DRAWINGS It is a sliding door apparatus of the example of embodiment of this invention, Comprising: (a) (b) (c) (d) is a schematic top view explaining a closing operation in order. It is a side view of the upper rail explaining a closed position guidance mechanism same as the above. It is a schematic perspective view of the center sliding door of the other example same as the above. It is the sliding door apparatus of the other example of embodiment of this invention, Comprising: (a) (b) (c) (d) is a schematic top view explaining a closing operation in order. (A) and (b) are top views explaining the case where only the central sliding door is opened from the fully closed state. It is the sliding door apparatus of the other example of embodiment of this invention, Comprising: (a) (b) is a top view explaining an opening operation | movement in order. It is a perspective view from the diagonally upper front in C part of Fig.6 (a). It is a perspective view from back diagonally in the C section of Drawing 6 (a). It is a perspective view from the front diagonal upper part in D section of Drawing 6 (b). It is a perspective view from back slanting lower part in D section of Drawing 6 (b). The opening / closing operation | movement of the sliding door apparatus provided with the basic composition of this invention is shown, (a) is the general | schematic bottom view which looked at the upper rail part which shows the state which closed the three sliding doors flush with the bottom, (b) Fig. 4 is a schematic bottom view of the upper rail portion showing a state in the middle of opening and closing as seen from below, and (c) is a schematic bottom view of the upper rail portion showing a fully opened state in which three sliding doors are stacked in front and rear as seen from below. is there. The opening / closing operation | movement of a sliding door apparatus same as the above is shown, (a) is a schematic plane sectional view which shows the state which closed three sliding doors flush, (b) is a schematic plane sectional view which shows the state in the middle of opening and closing. (C) is a general | schematic plane sectional view which shows the fully open state which piled up three sliding doors back and forth. It is the perspective view seen from the back which omitted the upper rail of the fully closed state of a sliding door device same as the above. It is the perspective view seen from the back which abbreviate | omitted the upper rail in the state in the middle of opening and closing of a sliding door apparatus same as the above. It is the perspective view seen from the back which abbreviate | omitted the upper rail of the state in the middle of opening and closing of the sliding door apparatus same as the above. It is the perspective view seen from the back which abbreviate | omitted the fully opened state upper rail which accumulated three sliding doors of the sliding door apparatus same as the above. It is the disassembled perspective view seen from the downward direction of the upper rail same as the above. (A) (b) (c) (d) (e) (f) is the expansion perspective view seen from the auxiliary | assistant rail blocks 18a-18f from the downward direction, respectively. (A) is the perspective view seen from the downward direction of the upper rail, (b) is the perspective view seen from the lower rail of the state which abbreviate | omitted the sub upper rail cover. (A) is a bottom view seen from below the upper rail, (b) is a bottom view seen from below the upper rail with the sub-upper rail cover omitted, and (c) is a view of three sliding doors. It is the perspective view which looked at the upper rail part of a fully closed state from the downward direction. FIG. 14 is an enlarged perspective view, partly broken, of FIG. 13. It is the expansion perspective view which a part of FIG. 14 same as the above fractured. FIG. 16 is an enlarged perspective view, partly broken, of FIG. FIG. 17 is an enlarged perspective view, partly broken, of FIG. 16. (A) (b) (c) is explanatory drawing which shows the operation order of left opening same as the above. (A) (b) (c) is explanatory drawing which shows the operation order of right opening same as the above. It is explanatory drawing which shows the positional relationship of the position of the auxiliary rail block in an upper rail same as the above, the runner provided in three sliding doors, and an auxiliary roller. It is the bottom view seen from the lower side for the explanatory view which shows the relationship between the auxiliary rail block 18b same as the above, the auxiliary rail block 18e, the auxiliary roller with low height, and the high auxiliary roller. (A) is explanatory drawing which shows the relationship between the auxiliary roller with low height in the EE line of FIG. 28, and the auxiliary rail block 18b, (b) is auxiliary roller with high height in the EE line of FIG. Is an explanatory view showing the relationship between the auxiliary rail block 18b, and FIG. 28C is an explanatory view showing the relationship between the auxiliary roller having a low height and the auxiliary rail block 18e along the line FF in FIG. 28, and FIG. It is explanatory drawing which shows the relationship between the auxiliary roller with high height in the FF line | wire of FIG. 28, and the auxiliary rail block 18e. It is the bottom view seen from the lower side for the explanatory view which shows the relationship between the auxiliary rail block 18d same as the above, the auxiliary rail block 18f, the auxiliary roller with low height, and the high auxiliary roller. (A) is explanatory drawing which shows the relationship between the auxiliary roller with the low height in the GG line of FIG. 30, and the auxiliary rail block 18d, (b) is the auxiliary roller with the high height in the GG line of FIG. And (c) is an explanatory view showing the relationship between the auxiliary roller having a low height and the auxiliary rail block 18f in the HH line of FIG. 30, and (d) is an explanatory view showing the relationship between the auxiliary rail block 18b. It is explanatory drawing which shows the relationship between the auxiliary roller with high height in the HH line | wire of FIG. 30, and the auxiliary rail block 18f. The state just before an engaging part at the time of opening operation of the interlocking mechanism same as the above is introduced into an engaging groove is shown, (a) is a top view and (b) is a perspective view. The engaging part at the time of opening operation of the interlocking mechanism same as the above is shown in a state where it is introduced into the protrusion insertion port of the engaging groove, (a) is a plan view, and (b) is a perspective view. The engagement part at the time of opening operation of an interlocking mechanism same as the above shows the state introduced into the front end part of the engagement groove, (a) is a top view, (b) is a perspective view. The state just before the engaging part at the time of opening operation of the interlocking mechanism of another example is introduced into an engaging groove is shown, (a) is a top view, (b) is a perspective view. The engaging part at the time of opening operation of the interlocking mechanism same as the above is shown in a state where it is introduced into the protrusion insertion port of the engaging groove, (a) is a plan view, and (b) is a perspective view. The engagement part at the time of opening operation of an interlocking mechanism same as the above shows the state introduced into the front end part of the engagement groove, (a) is a top view, (b) is a perspective view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sliding door 1a One sliding door 1b The other sliding door 1c Central sliding door 2 Inhibition mechanism 7 Common rail part 8 Central sliding door rail part 13 Curved rail part 15 Interlocking mechanism 16 Closed position guidance mechanism 17 Stopping mechanism 19 Guiding mechanism 33c Engaging groove 35d Engaging part 36 Depression recess 37 Locking portion 38 Locked portion 39 Stopper 40 Abutting member 41 Sliding plate member

Claims (5)

A sliding door device comprising three sliding doors, wherein three sliding doors that are adjacent in succession in a closed state are a central sliding door located in the center, and a one sliding door disposed on one side of the central sliding door; The other sliding door is arranged on the other side of the central sliding door, and the three sliding doors are arranged so as to be flush with each other in the closed state, and are moved from the other sliding door side to the one sliding door side and opened. The other sliding door is guided to the front of the one sliding door, the central sliding door is guided to the rear of the one sliding door, the three sliding doors are juxtaposed in the front and back, and moved from one sliding door side to the other sliding door side. When opening, a guiding mechanism is provided for guiding the one sliding door to the front of the other sliding door and guiding the central sliding door to the rear of the other sliding door so that the three sliding doors are juxtaposed in front and back, When opening the other sliding door, the operating force of the other sliding door is transmitted to the central sliding door. Provided with an interlocking mechanism for moving the center sliding door to follow the one sliding door by transferring the operating force of the one sliding door to the central sliding door when opening the one sliding door following the other sliding door. When closing the central sliding door by following the sliding door or the other sliding door, a deterrent mechanism is provided to stop the central sliding door in a closed position that is flush with the one and other sliding doors. A hook-shaped locking part that protrudes outward in the side and bends forward at the protruding tip is provided, protrudes laterally outward at the side edge on the side of each central sliding door of the one sliding door and the other sliding door, and bends backward at the protruding tip In the state where the hook-like locked portion is provided and the sliding door is closed, each locked portion is positioned closer to the center of the sliding door device than the locking portion, and each of the locking portion and the locked portion is the projecting distal portion can abut so is opposed, characterized by comprising Door apparatus.   The restraining mechanism is provided with a restraining recess in which the runner of the central sliding door located at the closed position formed on the running surface of the rail on which the runner provided on the central sliding door rolls is stopped by its own weight. The sliding door device according to 1. The guiding mechanism can travel at two places on the left and right sides of a common sliding rail section that guides the one sliding door and the other sliding door so that they can run freely, and a central sliding door that is arranged at the rear of the sliding door apparatus. A central sliding door rail portion that guides to the left and right sides of the central sliding door rail portion, and a curved rail portion whose front end position is the closing position of the central sliding door is bent forward in a semicircular shape. The interlocking mechanism is a mechanism that engages an engaging groove provided in the central sliding door with an engaging portion that is suspended from a horizontal piece protruding backward from the one sliding door, and causes the central sliding door to be integrally driven by the one sliding door. And the restraining mechanism is characterized in that when the central sliding door is located at the closed position, the engaging portion released from the engaging groove and released is slidably brought into contact with the rear surface of the central sliding door. The sliding door device according to claim 1 or 2. A sliding door device comprising three sliding doors, wherein three sliding doors that are adjacent in succession in a closed state are a central sliding door located in the center, and a one sliding door disposed on one side of the central sliding door; The other sliding door is arranged on the other side of the central sliding door, and the three sliding doors are arranged so as to be flush with each other in the closed state, and are moved from the other sliding door side to the one sliding door side and opened. The other sliding door is guided to the front of the one sliding door, the central sliding door is guided to the rear of the one sliding door, the three sliding doors are juxtaposed in the front and back, and moved from one sliding door side to the other sliding door side. When opening, a guiding mechanism is provided for guiding the one sliding door to the front of the other sliding door and guiding the central sliding door to the rear of the other sliding door so that the three sliding doors are juxtaposed in front and back, When opening the other sliding door, the operating force of the other sliding door is transmitted to the central sliding door. Provided with an interlocking mechanism for moving the center sliding door to follow the one sliding door by transferring the operating force of the one sliding door to the central sliding door when opening the one sliding door following the other sliding door. When the central sliding door is closed by following the sliding door or the other sliding door, a deterrent mechanism is provided to stop the central sliding door in a closed position that is flush with the one sliding door and the other sliding door, and the guiding mechanism travels through three sliding doors. A rail that freely guides is provided, the interlocking mechanism is provided with a mechanism that causes the one sliding door or the other sliding door that has been opened and closed to be driven in a state where the central sliding door is overlapped in the front-rear direction, and the suppression mechanism has one sliding door or the other sliding door at one end. A sliding door device comprising: a stopper provided on the rail for stopping the central sliding door in the closed position by contacting the other end with the central sliding door only in a state in which the rail contacts . The restraining mechanism is provided with a restraining recess in which the runner of the central sliding door located at the closed position formed on the running surface of the rail on which the runner provided on the central sliding door rolls is stopped by its own weight. 4. The sliding door device according to 4 .

Images