JP4093222B2 - 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, in the case of three sliding doors, there is known a sliding type sliding door device in which each sliding door moves linearly in parallel to be in a closed state, a right open state, or a left open state (see, for example, Patent Document 1). .

  However, in the conventional example shown in Patent Document 1, each sliding door 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 longitudinal direction of the upper rail for each sliding door. There is also a restriction that the degree of freedom in construction is small, such as the need to provide three rail portions in parallel in the front-rear direction orthogonal to each other, and thus the need to increase the overall expected dimension (depth) of the upper rail.

  As another conventional example, when opening the three sliding doors from the one sliding door side, an interlocking mechanism for transmitting the operation force on the one sliding door side to the central sliding door and opening and closing the central sliding door following the one sliding door is provided. A sliding door device is known (see, for example, Patent Document 2).

  The interlocking mechanism found in Patent Document 2 includes a hook-shaped hook portion having a vertical contact surface protruding from the upper end portion of one sliding door toward the moving path of the central sliding door, and a hook portion protruding from the upper end portion of the central sliding door. When the door is opened, when the one sliding door and the central sliding door overlap each other, the receiving member comes into contact with the vertical contact surface of the hook portion, and the one sliding door and the central sliding door The receiving member can be engaged with the hook part at the stage of moving back and forth across the other sliding door, thereby transmitting the operating force on the one sliding door side to the central sliding door and opening and closing the central sliding door following the one sliding door. is there.

However, in this conventional example, at the sliding door interlocking start stage, the vertical contact surface of the hook portion on the one sliding door side pushes the receiving member on the central sliding door side in a direction different from the moving path of the central sliding door. In other words, since the operating force acts on the receiving member at any position from the base end to the front end of the vertical contact surface at an angle deviating from the moving path of the central sliding door, only a part of the operating force (component force) is applied. The force does not push the receiving member, and the remaining force is totally lost. For this reason, there is a problem in that useless force increases, a large operating force is required, and further, smooth interlocking opening / closing cannot be performed, resulting in poor operability.
Japanese Utility Model Publication No. 51-103524 JP 2003-120115 A

  The present invention was invented in view of the above-described conventional problems, and there is no step between the three sliding doors in the closed state, and it can exhibit an appearance as a series of continuous wall surfaces, It is an object of the present invention to provide a sliding door device that can smoothly open and close a sliding door that follows in the interlocking start stage of the sliding door and immediately before the end of the interlocking, can efficiently transmit the operation force, and can improve the opening and closing operability. To do.

  In order to solve the above-mentioned problems, in the present invention, the central sliding door 1c, the one sliding door 1a disposed on one side of the central sliding door 1c in the closed state, and the other side of the central sliding door 1c are disposed. The other sliding door 1b, and the three sliding doors 1 arranged so as to be flush with each other in the closed state, and the one sliding door 1a is moved toward the other sliding door 1b and the one sliding door 1a is moved to the other sliding door. A guiding mechanism 19 that guides the sliding door 1c so as to overlap before the sliding door 1b, and moves the central sliding door 1c toward the other sliding door 1b so as to overlap after the other sliding door 1b; And an interlocking mechanism 15 for transmitting and closing the central sliding door 1c so as to follow and open the one sliding door 1a. The interlocking mechanism 15 moves from the upper end of the one sliding door 1a toward the moving path C of the central sliding door 1c. Projecting tilt interlocking bracket 15a It consists of a receiving member 15e that protrudes from the upper end portion of the central sliding door 1c and can be engaged with and disengaged from the tilt interlocking bracket 15a. The tilt interlocking bracket 15a is in a direction opposite to the opening direction D of the one sliding door 1a from the proximal end to the distal end. A push-side inclined guide surface 15b that is inclined so as to be positioned at a position, a locking surface 15c that is bent from the tip of the push-side inclined guide surface 15b toward the opening direction D of the one sliding door 1a, and a tip of the locking surface 15c And a pulling-side inclined guide surface 15d protruding so as to face the pushing-side inclined guide surface 15b substantially parallel to the push-side inclined guide surface 15b. 15e does not interfere with the inclination interlocking metal fitting 15a, and at the stage where the one sliding door 1a and the central sliding door 1c substantially overlap each other, the receiving member 15e comes into contact with the inclined guide surface 15b on the push side, and further, the one sliding door 1a The receiving member 15e is pushed by the inclined guide surface 15b on the push side and the pushing operation force P1 is substantially parallel to the movement path C of the central sliding door 1c in the interlocking start stage where the central sliding door 1c separates back and forth across the other sliding door 1b. The sliding door 1a and the central sliding door 1c move to the fully open position while the receiving member 15e is locked to the locking surface 15c, and when the receiving member 15e is closed, the receiving member 15e is locked. The central sliding door 1c approaches the closed position while being locked to the surface 15c, and the receiving member 15e is pulled by the pulling-side inclined guide surface 15d immediately before the end of the interlocking, and the pulling operation force P2 is the movement path of the central sliding door 1c. It is configured to act in a direction substantially parallel to C.

  By adopting such a configuration, there is no step between adjacent sliding doors 1 in a closed state, and an appearance as a series of continuous wall surfaces can be exhibited, and one sliding door 1a (or the other sliding door 1b) can be exhibited. ), The one sliding door 1a is moved closer to the front side (inside the room) than the other sliding door 1b and the central sliding door 1c, so that the opening / closing operation becomes extremely easy. Further, it is not necessary to manually open and close the central sliding door 1c by the interlocking mechanism 15, and the opening / closing operation becomes extremely easy. In addition, the one-way sliding door 1a at the stage of starting the interlocking between the sliding door 1a and the central sliding door 1c and immediately before the end of the interlocking. The side operating force can be efficiently transmitted to the central sliding door 1c, and in both cases, the central sliding door 1c can be smoothly opened and closed. Accordingly, since a loss of force during operation can be eliminated, a small operation force is sufficient.

  Further, it is preferable that the receiving member 15e is composed of a roller. In this case, the friction between the inclined interlocking metal fitting 15a and the receiving member 15e is minimized as much as possible at the start of interlocking and immediately before the end of interlocking. The operating force can be further reduced.

  Further, it is preferable to include at least one of a vertical adjustment means 27 for adjusting the vertical position of the receiving member 15e with respect to the inclination interlocking metal fitting 15a and a front / rear adjustment means 28 for adjusting the front / rear position with respect to the inclination interlocking metal fitting 15a. Even if the sliding door 1 is tilted due to a deviation of the building's body (tilt, deflection, etc.) or due to variations in the mounting position of each part, it can be received by adjusting the vertical position of the tilt interlocking bracket 15a. As long as the stop position of the central sliding door 1c can be changed as much as possible by changing the positions of the front and rear directions A and B where the member 15e comes into contact with the inclined interlocking bracket 15a and the receiving member 15e is further away from the inclined interlocking bracket 15a. Can be set to

  The sliding door device according to the present invention is configured so that the three sliding doors are arranged so as to be flush with each other in the closed state, so that a step may be generated between the adjacent sliding doors in the closed state. The appearance as a series of continuous wall surfaces can be exhibited, and the appearance is greatly improved. In addition, when opening from the one sliding door (or the other sliding door), the one sliding door is moved closer to the front side (inside the room) than the other sliding door and the central sliding door, so that the opening / closing operation becomes extremely easy. Furthermore, since the interlocking mechanism can efficiently transmit the operating force on the one sliding door side to the central sliding door at the stage where the one sliding door and the central sliding door start to interlock and immediately before the end of the interlocking, the conventional hook part is orthogonal to the opening direction of the sliding door. Compared with the case where it makes it project, the opening and closing operability can be greatly improved.

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

  The sliding door device of the present invention has three sliding doors 1 as shown in FIG. 1 and FIG. 10, and in a closed state, a central sliding door 1c and a 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 so that not only the three sliding doors 1 are arranged in a row in the closed state but also the entire three sliding doors are flush with each other. It is arranged. Thus, for example, when used as a closet door, the three sliding doors 1 can exhibit an appearance as a series of walls that are flush with each other without a step, and the appearance is good.

  When the three sliding doors 1 are moved from one sliding door 1a side to the other sliding door 1b side and opened as shown in FIG. 1, the one sliding door 1a guides to the front A of the other sliding door 1b and the central sliding door 1c. Is guided to the rear B of the other sliding door 1b, and the interlocking mechanism 15 is used to transmit 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. And.

  First, the guide mechanism 19 guides the upper runners 21 to 23 attached to the upper part of the sliding door 1, the lower rollers 41 respectively attached to the lower part of the sliding door 1, and the upper runners 21 to 23, the lower roller 41 to run freely. The upper and lower rails 5 and 6 provided on the door frame 4 are configured.

  The door frame 4 is a rectangular frame that is attached to an opening for opening and closing the three sliding doors 1 so as to be freely opened and closed. As shown in FIG. 10, the door frame 4 is composed of upper and lower rails 5 and 6 and left and right vertical frames 4a. It is.

  As shown in FIGS. 2 and 7, the upper rail 5 is divided into an upper rail body 50 that is fixed to the housing and an upper rail cover 51 that is disposed in the opening of the upper rail body 50. In FIG. 7, X is the indoor side and Y is the ceiling side.

  The upper rail cover 51 is divided into a straight part rail cover 51A and a curved part rail cover 51B. As shown in FIG. 1 and FIG. 6A, the gap between the upper rail body 50 and the rectilinear portion rail cover 51 </ b> A is aligned in the longitudinal direction A and B perpendicular to the longitudinal direction M of the upper rail 5. The common rail portion 7 and the groove-shaped central sliding door rail portion 8 are arranged side by side. The bending portion rail cover 51B is formed with an outer bending rail portion 11, an inner bending rail portion 12, and a curved rail portion 13, which will be described later.

  First, the common rail portion 7 can run on two left and right upper runners 21 and 22 provided at two ends of each upper end of one and the other sliding doors 1b and 1b (that is, left and right sliding doors 1a and 1b). 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.

  Further, the central sliding door rail portion 8 has a rearward straight rail portion 10 parallel to the front straight rail portion 9 and a position facing the left and right inner curved rail portions 12 in the rear straight 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. In FIG. 6A, reference numerals 10a and 10b branch from the communication portion between the longitudinal intermediate portion of the rear straight rail portion 10 and the left and right curved rail portions 13 and rearward from the intermediate portion of the rear straight rail portion 10. A straight running portion that continuously extends toward the left and right side portions of the side straight running rail portion 1, and a portion into which the upper runner 23 on the right side of the central sliding door 1 c enters the straight running portion 10 a when the central sliding door 1 c is brought to the left end. 10b is a portion into which the upper runner 23 on the left side of the central sliding door 1c enters when the central sliding door 1c is moved to the right end.

  The left and right outer curved rail portions 11 provided at the front straight rail 9 have rear end portions, the left and right inner curved rail portions 12 rear end portions, and the left and right two in the rear straight rail portion 10. The front end portion of each curved rail portion 13 is located on a virtual straight line parallel to the front straight rail portion 9 and the rear straight rail portion 10. The distance between the rear end portion of the left outer curved rail portion 11 and the rear end portion of the left inner curved rail portion 12 is between the left and right upper runners 22 of the left sliding door 1 (that is, the other sliding door 1b). The distance between the rear end portion of the right outer curved rail portion 11 and the rear end portion 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). Further, the distance between the front end portions 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. 1A enters the respective rear end portions of the outer curved rail portion 11 and the inner curved rail portion 12 located on the left side, and the center. Each of the upper runners 23 of the 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 one sliding door 1a is located on the right side. 12 are juxtaposed so that the sliding doors 1 are in the same plane parallel to the longitudinal direction M of the upper rail 5 (that is, the three sliding doors 1 are flush with each other). Is done.

  On the other hand, in the right-open state, as shown in FIG. 1E, the left upper runner 23 of the central sliding door 1c moves to the left end of the rear straight rail section 10 and the right upper runner 23 moves to the straight section 10a. Each of the upper runners 21 of the one sliding door 1a moves to the left side of the front linear rail 9 so that the one sliding door 1a, the other sliding door 1b, and the central sliding door 1c are juxtaposed in order from the front.

  Further, in the left-opened state of FIG. 12, each upper runner 21 of the one sliding door 1a enters the respective rear end portions of the outer curved rail portion 11 and the inner curved rail portion 12 located on the right side, and the right side of the central sliding door 1c. The upper runner 23 moves to the right end of the rear straight rail portion 10 and the left upper runner 23 moves to the straight portion 10b. The upper runner 22 of the other sliding door 1b moves to the front straight rail portion 9. By moving each to the left side, the other sliding door 1b, the one sliding door 1a, and the central sliding door 1c are juxtaposed in order from the front as shown in FIG. 12 (c).

  These right open state and left 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 other sliding door 1b in a state where the one sliding door 1a, the central sliding door 1c, and the other sliding door 1b overlap each other, and is flush with the other sliding door 1b. In addition, the sliding door 1a is moved to a position where it does not overlap with the other sliding door 1b and the central sliding door 1c so as to be guided to be flush with the central sliding door 1c.

  A pair of opposing L-shaped members for concealing the gaps may be attached to the mutual abutting portions of the sliding doors 1, but for example, an oblique cut portion is provided on the abutting surface of each sliding door 1 to each of the sliding doors 1. It is also possible to eliminate the gap between them.

  On the other hand, the upper runners 21 to 23 of each sliding door 1 are, as shown in FIGS. 4, 5, and 8, a roller block 24, an auxiliary roller 25a protruding upward from the upper surface of the roller block 24, and another roller block. The auxiliary roller 25b protrudes upward from the upper surface of 24. Here, as shown in FIG. 3, the upper roller 34 has a degree of freedom of rotation in a plurality of directions by a roller horizontal axis W and a roller vertical axis Z orthogonal to each other. A sense of stability can be obtained at the same time. Therefore, when the auxiliary roller 25a or 25b bends along any of the auxiliary rails 18a to 18f, it is possible to prevent the generation of metal sound or friction due to rubbing or the like, and temporarily, the curvature of the auxiliary rails 18a to 18f. Even when the radius is made small, it is possible to achieve smooth turning. Further, by reducing the radius of curvature of the auxiliary rails 18a to 18f, the roller block 24 can be easily downsized, and as a result, the upper rail 5 can be easily downsized. Further, by making the roller block 24 made of resin, it is possible to reduce the occurrence of an impact when the sliding door 1 moves to the open position or the closed position, and the usability is improved. Incidentally, when the radius of curvature of the auxiliary rails 18a to 18f is increased, the upper rail 5 is increased and the gap between the sliding doors 1 is increased in the open state. However, the present invention does not have such a problem.

  Moreover, in this embodiment, as shown in FIG. 3, the runner connecting member 40 for connecting the upper runners 21 to 23 to the upper end of the sliding door 1, the upper runners 21 to 23 protrude rearward B from the rear surface of the sliding door 1. Are bent in a substantially L shape so as to be positioned. In the present embodiment, the vertical portion of the runner connecting member 40 is fixed to the sliding door 1 side, and the upper runner 21 (or 22, 23) is pivotally attached to the horizontal portion. In this way, even when the expected dimension (depth) of the door frame is made smaller than before by bending the runner connecting member 40 into a substantially L shape, the one sliding door 1a (operation side) is opened when the sliding door 1 of FIG. 3 is opened. (Sliding door) can be arranged to protrude indoors. Therefore, in the case of a closet, the storage capacity is increased as compared with the conventional product, and even when the cargo collapse occurs in the storage, it becomes easier to open the one sliding door 1a or the other sliding door 1c. Moreover, it becomes difficult to see the lower rail 6 from the room, and the appearance is further improved.

  Further, as shown in FIG. 3, the roller block 24 has a degree of freedom of rotation in a plurality of directions by a roller horizontal axis W and a roller vertical axis Z orthogonal to each other. A sense of stability of driving can be obtained at the same time. Therefore, when the auxiliary roller 25a or 25b bends along any of the auxiliary rails 18a to 18f, it is possible to prevent the generation of metal sound or friction due to rubbing or the like, and temporarily, the curvature of the auxiliary rails 18a to 18f. Even when the radius is made small, it is possible to achieve smooth turning. Further, by reducing the radius of curvature of the auxiliary rails 18a to 18f, the roller block 24 can be easily downsized, and as a result, the upper rail 5 can be easily downsized.

  By the way, when the below-mentioned interlocking mechanism 15 is provided in the upper end part of the sliding door 1, when the interlocking of the sliding door 1 is started or when the sliding door is fully closed, the handle is attached with the tilt interlocking metal fitting 15a as the rotation center and the handle as the power point. Lifting is likely to occur on the end side of the sliding door 1 on the side that is not. When this lifting occurs, not only the quality of the product is impaired, but also the inclined interlocking metal fitting 15a comes into contact with the upper rail 5 and is damaged, or the roller block 24 is lifted simultaneously with the lifting of the sliding door. There is a problem of damage. Therefore, in this example, as shown in FIG. 5, an interference member 120 made of a resin spacer is disposed between the runner connecting member 40 and the upper rail 5. As a result, not only can the lifting of the sliding door be suppressed to a minimum, but also the upper rail 5 can be prevented from being damaged due to the lifting, and further the breakage of the branching member 18 can be prevented.

  Next, the branch member 18 that guides the auxiliary rollers 25a and 25b will be described. As shown in FIG. 6, at each branch point of the outer curved rail part 11, the inner curved rail part 12, and the curved rail part 13, the height of the auxiliary roller 25a and the auxiliary roller 25b is different depending on the difference in the protruding position. A branching member 18 is provided for determining whether the sliding door 1 travels at the branching point in a straight line or a curved direction.

  Here, each branch member 18 is configured by first to sixth auxiliary rails 18a to 18f (FIG. 7) that are suspended from the common rail portion 7 or the central sliding door rail portion 8 at different lengths. .

  Furthermore, in this embodiment, in each sliding door 1, the protrusion height and the protrusion position of the said auxiliary roller 25a and the auxiliary roller 25b are varied. Here, as shown in FIGS. 4, 5, and 8, the left side auxiliary roller 25 b of the one sliding door 1 a and the other side sliding door 1 protrudes high and low from the front side position, and the right side auxiliary roller 25 a is positioned at the rear front side. It protrudes low from. Further, the left side auxiliary roller 25a of the central sliding door 1c protrudes low from the front side position, and the right side auxiliary roller 25b protrudes high from the rear side position.

  On the other hand, as shown in FIGS. 4, 5, and 6 (a), the first auxiliary rail 18 a is shorter along the left outer curved rail portion 11 from the position on the nearer side than the front straight rail portion 9. The second auxiliary rail 18 b hangs down along the left inner curved rail portion 12 from a position behind the front straight rail portion 9. The third auxiliary rail 18c hangs down along the right outer curved rail portion 11 from a position behind the front linear rail portion 9, and the fourth auxiliary rail 18d is a front linear rail portion 9. It hangs short from the position on the near side along the inner curved rail portion 12 on the right side. Further, the fifth auxiliary rail 18e hangs down along the left curved rail portion 13 from a position on the near side with respect to the rear straight traveling rail portion 10, and the sixth auxiliary rail 18f is a rear straight traveling rail. It hangs short from the position behind the portion 10 along the curved rail portion 13 on the right side.

  Further, in the present embodiment, a pair of front and rear guide ribs 38 for guiding both side surfaces of the roller block 24 are provided along the front straight rail portion 9 and the rear straight rail portion 10, respectively. The roller block 24 that is bent by the branch member 18 is formed on a part of the guide rib 38 that faces each branch point of the curved rail portion 12 and the curved rail portion 13, or the inner curved rail portion 12 or the inner curved rail portion 12 or A cutout hole 39 (FIG. 7) is formed to advance to any one of the curved rail portions 13.

  Here, when each sliding door 1 is closed, the high auxiliary roller 25b on the left side of the other sliding door 1 shown in FIGS. 1 and 6 enters the short auxiliary rail 18a, and the low auxiliary roller 25a on the right side enters the long auxiliary rail 18b. It is out. The low auxiliary roller 25a on the left side of the central sliding door 1c enters the long auxiliary rail 18e, and the high auxiliary roller 25b on the right side enters the short auxiliary rail 18f. The high auxiliary roller 25b on the left side of the sliding door 1a enters the short auxiliary rail 18d, and the low auxiliary roller 25a on the right side enters the long auxiliary rail 18c.

  For example, when the one sliding door 1a is opened to the left side from this closed state, the high auxiliary roller 25b of the one sliding door 1a passes straight in front of the auxiliary rail 18b and goes straight to the front of the auxiliary rail 18a, and the low auxiliary roller 25a is a short auxiliary rail. It goes under 18d and goes straight to the position before auxiliary rail 18b. Thereby, each upper runner 22 of the one sliding door 1a can be smoothly moved to the left outer curved rail part 11 and the inner curved rail part 12, respectively. Further, the central sliding door 1c that opens in conjunction with the one sliding door 1a is guided by the auxiliary rollers 25a and 25b, so that the upper runners 23 of the central sliding door 1c are connected to the left side and the straight traveling portion 10a (see FIG. 1). (A)) and can be moved smoothly. The same applies when the other sliding door 1 is opened to the right.

  As described above, the height and position of the auxiliary rails 18a to 18f are made different, while the height and position of each auxiliary roller 25a and auxiliary roller 25b of the sliding door 1 are made different from each other. It is possible to determine whether the moving direction of the sliding door 1 is straight or curved at each branch point of the curved rail portion 12 and the curved rail portion 13, and therefore, the opening / closing operation of the sliding door 1 can be performed more quickly and smoothly. This can be performed and the operability is greatly improved.

  Next, the interlocking mechanism 15 will be described. As shown in FIG. 8, inclined interlocking metal fittings 15a that protrude from the upper end of one sliding door 1a toward the moving path C of the central sliding door 1c are attached to the upper ends of the one sliding door 1a and the other sliding door 1b, respectively. It has been. Receiving members 15e that can be engaged with and disengaged from the inclination interlocking metal fitting 15a are respectively attached to upper ends of both sides of the central sliding door 1c. The slant interlocking metal fitting 15a and the receiving member 15e constitute an interlocking mechanism 15 for transmitting the operating force on the one sliding door 1a side to the central sliding door 1c and opening and closing the central sliding door 1c in conjunction with the one sliding door 1a. .

  Here, the inclination interlocking metal fitting 15a includes a push-side inclination guide surface 15b inclined so as to be positioned in a direction opposite to the opening direction D of the one sliding door 1a from the base end to the tip end, and a push-side inclination guide. A locking surface 15c that bends in the opening direction D of the one sliding door 1a from the tip of the surface 15b, and a pulling side that protrudes from the tip of the locking surface 15c so as to face the push-side inclined guide surface 15b substantially in parallel. The inclined guide surface 15d is integrally formed. Here, in order to efficiently transmit the operating force on the one sliding door 1a side to the central sliding door 1c, the push-side inclined guide surface 15b and the pulling-side inclined guide surface 15d are perpendicular to the moving path C of the central sliding door 1c. It is most preferable to incline. In a state where the one sliding door 1a and the central sliding door 1c are shifted to the left and right, the receiving member 15e does not interfere with the inclination interlocking metal fitting 15a, and the receiving member 15e is pushed on the push side when the one sliding door 1a and the central sliding door 1c substantially overlap. The receiving member 15e is pushed by the push-side inclined guide surface 15b at a stage where the one-side sliding door 1a and the central sliding door 1c are separated from each other back and forth across the other sliding door 1b. The pushing operation force acts in a direction substantially parallel to the moving path C of the central sliding door 1c, and when closing, the central sliding door 1c is in a state where the receiving member 15e is locked to the locking surface 15c. The receiving member 15e is pulled toward the pulling-side inclined guide surface 15d just before the end of the interlocking, and the pulling operation force P2 approaches the direction substantially parallel to the moving path C of the central sliding door 1c. It is intended to use.

  In this example, the receiving member 15e is constituted by a roller.

  Next, the operation will be described. For example, as shown in FIGS. 1 and 6 (a), when the sliding door 1a on the right side is opened from the side, the receiving member 15e is not connected to the inclined interlocking bracket 15a when the one sliding door 1a and the central sliding door 1c are shifted to the left and right. At the stage where the one sliding door 1a and the central sliding door 1c substantially overlap without interfering with each other, the receiving member 15e comes into contact with the inclined guide surface 15b on the push side of the inclined interlocking metal fitting 15a, and the one sliding door 1a and the central sliding door 1c are the other sliding door. As shown in FIG. 9 (a), the receiving member 15e is pushed by the base end side of the push-side inclined guide surface 15b, and the pushing operation force P1 is changed to the central sliding door 1c. Acting in a direction substantially parallel to the movement path C of That is, an operating force P1 parallel to the movement path C of the central sliding door 1c (the rail direction of the curved rail portion 13) is applied to the receiving member 15e at any position from the proximal end to the distal end of the push-side inclined guide surface 15b. Since it acts, there is no loss of force, and the central sliding door 1c is smoothly opened obliquely rearward. 1 (b) → (c) → (d), when the central sliding door 1c and the one sliding door 1a are separated from each other in the front-rear direction, the receiving member 15e is locked to the locking surface 15c of the tilt interlocking metal fitting 15a. This locked state is maintained until the one sliding door 1a and the central sliding door 1c reach the fully open position.

  On the contrary, when closing, the one sliding door 1a and the central sliding door 1c are interlocked and closed in a state where the receiving member 15e is locked to the locking surface 15c. As shown, the receiving member 15e is pulled by the pulling-side inclined guide surface 15d, and the pulling operation force P2 acts in a direction substantially parallel to the movement path C of the central sliding door 1c. Thereby, like the case of FIG.9 (a) opening, there is no loss of force and the center sliding door 1c can move to diagonally forward smoothly. When the central sliding door 1c reaches the closed position, as shown in FIGS. 1 (d) → (c) → (b), the receiving member 15e is released from the inclined guide surface 15d on the pulling side, and the interlocking is released. Can move to the closed position alone.

  Thus, in the sliding door device that can be opened and closed from the one sliding door 1a or the other sliding door 1c, the sliding doors 1 are arranged in the same plane in the closed state, so that the whole becomes flat, for example, when used as a closet door, The sliding door 1 can be given a sense of unity with the surrounding indoor wall and the appearance can be greatly improved. In addition, since the three rail portions are conventionally arranged in parallel in the longitudinal directions A and B orthogonal to the longitudinal direction M of the upper rail 5, the expected size (depth) of the entire upper rail 5 is increased. On the other hand, the sliding door device of the present invention can guide each sliding door 1 with two rail portions (common rail portion 7 and central sliding door rail portion 8), and therefore the expected size F of the entire upper rail 5 (FIG. 6A). ) Can be reduced. As a result, for example, when used as a closet door, the storage capacity can be increased as compared with the conventional case. In addition, since the one-way sliding door 1a and the central sliding door 1c can be interlocked by the interlocking mechanism 15, it becomes unnecessary to open and close the central sliding door 1c by hand, and the opening / closing operation becomes extremely easy. Since the inclined guide surface 15b, the locking surface 15c, and the pulling-side inclined guide surface 15d are integrally formed, the cost can be reduced.

  Furthermore, the push-side inclined guide surface 15b and the pull-side inclined guide surface 15d of the interlocking mechanism 15 are inclined in a direction opposite to the opening direction D (FIG. 9) of the one sliding door 1a as the tip ends. Therefore, in the interlocking start stage of the one sliding door 1a and the central sliding door 1c, the direction of the pushing operation force P1 applied from the inclined guide surface 15b on the pushing side of the one sliding door 1a to the receiving member 15e of the central sliding door 1c is the direction of the central sliding door 1c. Since it is substantially parallel to the movement path C, the pushing operation force P1 of the one sliding door 1a can be efficiently transmitted to the central sliding door 1c. Further, in the stage immediately before the end of the interlocking of the one sliding door 1a and the central sliding door 1c, the direction of the pulling operation force P2 applied from the inclined guide surface 15d on the pulling side of the one sliding door 1a to the receiving member 15e of the central sliding door 1c is the movement of the central sliding door 1c. Since it is substantially parallel to the path C, the pulling operation force P2 of the one sliding door 1a can be efficiently transmitted to the central sliding door 1c, and as a result, in both cases, the central sliding door 1c can be smoothly opened and closed. . That is, almost all of the operation force P1 (P2) contributes to the movement of the central sliding door 1c, and the loss of force can be eliminated, so that a small operation force is sufficient. As a result, the opening / closing operability is greatly improved.

  Moreover, since the receiving member 15e is composed of a roller, the friction between the inclined interlocking metal fitting 15a and the receiving member 15e is minimized as much as possible at the start of interlocking and immediately before the end of interlocking. Further reduction can be achieved.

  Moreover, in this example, as shown in FIG. 1, the receiving member 15e is attached to the both ends of the central sliding door 1c, respectively, and the right end (the handle side) of the one sliding door 1a and the left end (the handle side) of the other sliding door 1b, Since the tilt interlocking metal fitting 15a is attached, the interlocking mechanism 15 works in either case of left opening or right opening. That is, in the fully closed state where the three sliding doors 1 are arranged in a line without any step, the other sliding door 1b is moved toward the one sliding door 1a (in the embodiment, the other sliding door 1b which is the left sliding door 1 is moved). The central sliding door 1c is moved in conjunction with the other sliding door 1b by the interlocking mechanism 15, and the other sliding door 1b is guided by the guiding mechanism 19 so as to overlap the front side of the one sliding door 1a. 1c can be guided to overlap the rear side of the one sliding door 1a, and can be opened so that the other sliding door 1b, the one sliding door 1a, and the central sliding door 1c are stacked in this order from the front.

  By the way, if the sliding door 1 is inclined due to a deviation (tilt, deflection, etc.) of the housing housing, the tilt interlocking metal fitting 15a does not hit the receiving member 15e, and the interlocking cannot be performed. Therefore, in this example, as shown in FIG. 16, the sliding door fixing hole 15g provided in the base 15f of the receiving member 15e is formed as a long hole that is long in the vertical direction. Accordingly, the upper and lower mounting positions of the base 15f of the receiving member 15e can be adjusted along the long hole-like sliding door fixing hole 15g, and as a result, the sliding door 1 can be reliably opened and closed.

  Next, another embodiment of the receiving member 15e will be described. Incidentally, in the interlocking mechanism 15, the position at which the receiving member 15e attached to the central sliding door 1c is separated from the tilt interlocking metal fitting 15a varies depending on variations in each part and the attachment position. In addition, the position of the central sliding door 1c after the receiving member 15e is separated from the tilt interlocking fitting 15a depends on the closing speed of the sliding door 1 and the weight of the sliding door 1. The central sliding door 1c cannot be stopped at a fixed position. In this case, the flushness of the three sliding doors 1 is impaired, the appearance becomes unsightly, and when opening from the closed sliding door 1a side or the other sliding door 1bc side, the opening operation is hindered by the interference of the sliding doors. In addition, there is a problem that usability deteriorates, such as a collision sound.

  Therefore, in this example, a front / rear adjustment means 28 for adjusting the front / rear position with respect to the inclination interlocking metal fitting 15a is provided. As a result, the position where the receiving member 15e is separated from the inclination interlocking metal fitting 15a is changed, and the stop position of the central sliding door 1c can be made as constant as possible.

  As a specific configuration of the front-rear adjusting means 28, there is a screw feed type shown in FIG. This is because one half of the base 15f of the receiving member 15e is formed of a U-shaped metal fitting 15j, and a nut member 15m having a quadrangular cross section is inserted in a non-rotatable state inside the U-shaped metal fitting 15j. The penetrating screw 15n is screwed into the female screw opened in the lateral direction of the nut member 15m. A roller 15i is rotatably provided at the upper end of the nut member 15m. When the screw 15n is rotated in one direction, the nut member 15m is pulled backward B and the roller 15i is moved backward B. When the screw 15n is rotated reversely, the nut member 15m is pushed forward A and the roller 15i is also moved forward A. Moving. As a result, the front and rear positions of the roller 15i can be easily adjusted, and it becomes possible to more easily cope with a tatis- sive deviation (tilt, deflection, etc.) of the housing.

  As still another example of the front / rear adjusting means 28, there is a method of rotating the eccentric shaft 15p shown in FIG. In this case, a shaft mounting hole 15q having a square cross section is provided in the base 15f of the receiving member 15e in the vertical direction, and the lower portion of the eccentric shaft 15p is inserted so as not to rotate. A roller 15i constituting the receiving member 15e is rotatably fitted on the eccentric shaft 15p. Then, the eccentric shaft 15p is taken out from the shaft mounting hole 15q, and the eccentric shaft 15p is turned by 90 ° or 180 °, inserted into the shaft mounting hole 15q, and fixed by screwing. The position can be easily adjusted.

  Further, in this example, as shown in FIG. 7, the upper rail 5 is disposed at the upper rail body 50 that opens downward, and the gap between the upper rail body 50 and the straight rail portion 9, 10 is divided into a separate part into a straight part rail cover 51A and a curved part rail cover 51B which forms a curved rail part by a notched groove which is arranged in the opening of the upper rail body 50 and is cut out in a curved shape. As a result, the strength of the components of the upper rail 5 can be sufficiently secured, and particularly the strength of the curved rail portion can be easily secured. Can be increased.

  Moreover, since the rectilinear portion rail cover 51A and the bent portion rail cover 51B are attached to the opening of the upper rail body 50, it is easy to reduce the expected dimension of the upper rail body 50. Further, as shown in FIGS. 2 and 7, since the bent portion rail cover 51B is attached to the upper rail body 50 by screwing, the opening can be opened by removing the screwed bent portion rail cover 51B. The upper runners 21 to 23 can be inserted into the upper rail main body 50 from the portion, and therefore, there is no need to provide an opening in the rectilinear portion rail cover 51A or a dedicated cover for closing the opening. The strength of the partial rail cover 51A can be prevented from being lowered, and the number of components can be reduced to improve the assemblability.

  Further, in this example, as shown in FIG. 13, the straight portion rail cover 51A is provided with a concave portion 150 for connecting the curved portion rail cover, and the curved portion rail cover 51B is connected to the concave portion 150 of the straight portion rail cover 51A. In this state, the upper runner running surface 400 of the straight portion rail cover 51A and the upper runner running surface 401 of the bent portion rail cover 51B are configured to be flush with each other. Thus, by setting the flange portion 3001 of the straight portion rail cover 51A and the flange portion 300 of the bent portion rail cover 51B to the same height, the runner running surfaces 400 and 401 are as shown in FIGS. The step in the height direction can be made as small as possible at the seam at, so that a smooth opening and closing operation can be performed.

  In this example, the reinforcing recess 151 is formed at the center of the upper surface of the upper rail body 50, so that the rigidity is improved and the branch member 18 is fixed to the upper surface 50a of the upper rail body 50 with screws. In this case, the concave portion 151 can prevent the screw head from jumping upward from the upper surface of the upper rail body 50. Therefore, when attaching the upper surface portion 50a of the upper rail body 50 to the ceiling, Does not hinder the installation work.

  Further, in this example, as shown in FIGS. 3 to 7, since the guide ribs 38 for guiding the upper runners 21 to 23 of the sliding door 1 are suspended from the upper surface portion 50 a of the upper rail body 50, the curved rail portion is provided. Even if a rib processing residue is generated in the rib removal processing in step 1, the rib processing residue does not cause a step on the roller traveling surface and does not adversely affect the roller traveling property.

  Next, the lower rail 6 will be described. As shown in FIG. 14, a lower roller 41 protrudes from one place at the center of the lower end of the sliding door 1. In this embodiment, a casing 501 that opens downward is fitted into two left and right recesses 500 that are provided at the lower end of the sliding door 1, and the rod 502 is accommodated inside each casing 501. A pressing spring 110 is interposed between the 501 top surface and the rod 502. The rod 502 is prevented from coming off at the lower surface of the casing 501. As a result, the two rods 502 protrude downward from the sliding door 1 while being urged downward by the push-down springs 110, and the lower ends of the rods 502 are arranged at the rear end of the flat roller support fitting 80. It is attached to two places on the upper surface of the part. One lower roller 41 is rotatably supported on the center lower surface side of the front end portion of the roller support fitting 80. As shown in FIG. 15, the lower rail 6 that guides the lower roller 41 includes 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 7101. One curved rail portion 1344 that is provided and curved in a semicircular shape from the central portion of the central sliding door rail portion 8102 toward the front A is provided. Note that reference numeral 45 in FIG. 15 denotes a branching auxiliary rail.

  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 1344 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), and the lower end part is guided to the lower rail 6 by one lower roller 41. Running stability can be sufficiently achieved, and by using one lower roller 41, 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. There is also an advantage that can be achieved.

  In the above-described embodiment, the sliding door device with the interlocking mechanism 15 has been described. However, the interlocking mechanism 15 can be omitted, and each sliding door 1 can be manually opened and closed independently.

  Moreover, the sliding door device according to the present invention can be widely applied to various open / close door fields in addition to the closet door.

(A)-(e) is a top view explaining the opening / closing operation | movement by the interlocking mechanism of one Embodiment of this invention. (A) is a bottom view of the upper rail main body same as the above, and (b) is a bottom view of the upper rail cover. It is a side view explaining an upper runner and an upper rail cover same as the above. It is explanatory drawing in case a high auxiliary roller same as the above is guided to a short auxiliary rail. It is explanatory drawing in case a low auxiliary roller same as the above is guided to a long auxiliary rail. (A) is a bottom view explaining the branch member arrange | positioned at the upper rail same as the above, (b) is a top view explaining the position and height of the auxiliary roller of a sliding door. (A) is a perspective view of an upper rail same as the above, (b) is an exploded perspective view. It is a perspective view explaining the interlocking mechanism same as the above. (A) (b) is a figure explaining the direction of the operating force of the inclination interlocking metal fitting and receiving member of an interlocking mechanism. It is a front view of the door frame in which a sliding door same as the above is arranged. It is explanatory drawing of a right opening operation | movement same as the above. It is explanatory drawing of left opening operation same as the above. (A) is a front view of a straight part rail cover and a bent part rail cover same as the above, (b) is a sectional view taken along the line Q-Q of (a), and (c) is a sectional view taken along the line RR of (a). is there. (A) (b) is a perspective view explaining a lower roller same as the above, (c) is a side view. It is explanatory drawing of a lower runner same as the above. (A)-(d) is explanatory drawing of the up-down adjustment means which adjusts the up-down position with respect to the inclination interlocking metal fitting of a receiving member same as the above. (A)-(c) is explanatory drawing of the front-back adjustment means which adjusts the front-back position with respect to the inclination interlocking metal fitting of a receiving member same as the above. (A)-(d) is explanatory drawing of the other example of the front-back adjustment means which adjusts the front-back position with respect to the inclination interlocking metal fitting of a receiving member same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sliding door 1a One sliding door 1b The other sliding door 1c Central sliding door 5 Upper rail 15 Interlocking mechanism 15a Inclination interlocking metal fitting 15b Pushing side inclination guide surface 15c Locking surface 15d Pulling side inclination guide surface 15e Receiving member 19 Guiding mechanism

Claims (3)

  It consists of a central sliding door, one sliding door placed on one side of the central sliding door in the closed state, and the other sliding door placed on the other side of the central sliding door. The three sliding doors are arranged in such a manner that one sliding door is moved toward the other sliding door, the one sliding door is guided so as to overlap the other sliding door, and the central sliding door is moved toward the other sliding door. A guiding mechanism for guiding the sliding door so as to overlap the sliding door, and an interlocking mechanism for transmitting the operating force on the one sliding door side to the central sliding door to open and close the central sliding door following the one sliding door. It consists of a slanted interlocking fitting that protrudes from the upper end of the sliding door toward the moving path of the central sliding door, and a receiving member that protrudes from the upper end of the central sliding door and can be attached to and detached from the tilting interlocking bracket. What is the direction of opening the sliding door as it goes to the tip? A push-side inclined guide surface that is inclined so as to be positioned in the opposite direction, a locking surface that is bent from the tip of the push-side inclined guide surface toward the opening direction of the one sliding door, and a push-side from the tip of the locking surface. A pulling-side inclined guide surface that protrudes substantially parallel to the inclined guide surface, and when opening, the receiving member does not interfere with the inclined interlocking bracket when the one sliding door and the central sliding door are shifted to the left or right. However, the receiving member comes into contact with the inclined guide surface on the push side when the one sliding door and the central sliding door substantially overlap, and further, the receiving member at the interlocking start stage where the one sliding door and the central sliding door are separated from each other across the other sliding door. Is pushed by the inclined guide surface on the push side, and the pushing operation force acts in a direction substantially parallel to the movement path of the central sliding door, and the one sliding door and the central sliding door with the receiving member locked to the locking surface. And move to the fully open position and close In this case, the central sliding door approaches the closed position with the receiving member locked to the locking surface, and the receiving member is pulled to the inclined guide surface on the pulling side just before the end of the interlock, and the pulling operation force is A sliding door device configured to act in a direction substantially parallel to a moving path.   The sliding door device according to claim 1, wherein the receiving member is a roller.   3. The apparatus according to claim 1, further comprising at least one of an up / down adjusting means for adjusting a vertical position of the receiving member with respect to the inclination interlocking metal fitting and a front / rear adjusting means for adjusting a front / rear position with respect to the inclination interlocking metal fitting. Sliding door device.

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