JP6662964B2 - Sliding door device - Google Patents

Description

  The present invention relates to a sliding door device that is supported so as to be able to move laterally on a lateral movement path and that opens and closes an opening.

  As this type of sliding door device, a sliding door device as described in Patent Document 1 is used in addition to a general sliding door device that opens and closes an opening with a single sliding door. The sliding door device described in Patent Document 1 includes an inner first lateral movement path, a second lateral movement path overlapping the first lateral movement path, and a lateral movement in the entire first movement path. Equipped with a free first door unit and a second door unit that can be moved in parallel back and forth between the first and second lateral movement paths and that can move freely across the entire area in the second lateral movement path. From the fully closed state in which the first door unit and the second door unit are in the series closed position in series in the first lateral movement path, the first door unit is inside the second door unit in the series closed position. The overlapping first door single open state, and the second door single open state where the second door single unit overlaps the outside of the first door single unit in the series closed position, are configured to be switchable. The first door alone in the sliding door device also corresponds to a sliding door. This first door unit is provided with a pair of upper grooved rollers rotatable around a horizontal axis and a pair of lower rollers rotatable around a vertical axis, The upper grooved roller is rotatably fitted and supported on one upper protruding guide rail protruding upward, and the lower roller is fitted on a lower grooved guide rail whose lower side is released, The first door is configured to be held in a vertical position.

JP 2018-87470 A

  In the above configuration, in the suspension structure of the first door alone corresponding to the sliding door formed by the combination of the upper ridge guide rail and the upper grooved roller, only the pair of upper grooved rollers is provided in the door lateral movement direction. It is possible to accurately hold the position of the upper end of the single unit in the horizontal direction perpendicular to the door lateral movement direction, but the depth of fitting of the upper grooved roller to the upper ridge guide rail is shallow, When the concave surface forming the circumferential groove of the side grooved roller is in a fitted state covering the curved surface of the upper ridge guide rail, when an external force acts on the first door unit in the front-rear depth direction, the upper grooved roller is The transverse concave curved surface may move so as to ride in the transverse direction with respect to the transverse convex curved surface of the upper ridge guide rail, and the upper grooved roller may come off from the upper ridge guide rail. Always it was great. In order to solve this problem, in the configuration described in Patent Literature 1, an elevating member that can move up and down below the upper ridge guide rail is provided on the back surface of the first door alone, and the elevating member is moved to the ascending limit position. By locking, the upper end surface of the elevating member approaches the lower surface of the upper ridge guide rail to prevent the first door alone from rising. However, in this configuration, the first unit alone is prevented from rising beyond the gap between the upper end surface of the lifting member and the lower surface of the upper ridge guide rail, and the first unit alone moves in the depth direction. Therefore, it is basically impossible to prevent the upper grooved roller from moving on the upper ridge guide rail in the direction in which the roller runs laterally. Of course, in this case as well, the first door alone will be lifted, so it may be possible to prevent the upper grooved roller from coming off completely from the upper ridge guide rail, but even in that case, the upper and lower rollers moved in the depth direction. The roller with the side groove stops when the roller runs up so as to bite on the upper ridge guide rail, and a normal door opening / closing operation cannot be performed.

The present invention proposes a sliding door device that can solve the conventional problems as described above, and the sliding door device according to the present invention is intended to make it easier to understand the relationship with the embodiment described later. When the reference numerals used in the description of the embodiment are attached in parentheses, one upper protruding rail portion (20) that supports the upper end side of the sliding door (7) so as to be able to move laterally is provided. ), And a lower open grooved rail portion (29) for positioning the lower end side of the sliding door (7) so as to be able to move laterally, and the sliding door (7) is turned to the upper protruding rail portion (20). A pair of upper grooved rollers (36, 37) that are movably fitted and supported, and are rotatable about a horizontal axis in the lateral direction of the door, and a vertical shaft that fits in the grooved rail portion (29). a sliding door device rotatable Toyokodo direction a pair of anti-vibration roller (72, 73) is provided around the heart,
An auxiliary groove-shaped rail part (21) that is open to the lower side is provided in parallel with the upper ridge rail part (20), and the sliding door (7) is lowered downward away from the auxiliary groove-shaped rail part (21). The upper grooved roller (36, 37) includes an engagement member (40, 41) capable of moving up and down between a limit position and an ascending limit position in which the upper end is fitted into the auxiliary grooved rail portion (21). The engaging member (40, 41) provided at a position near the upper limit and raised from the lower limit position to the upper limit position locks and holds the engaging member (40, 41) at the upper limit position. The sliding door (7) is mounted with a pair of mounting substrates (38, 39) in the door lateral movement direction, and on each of the mounting substrates (38, 39), the upper grooved roller (36, 37). Are pivotally supported, and in the sliding door device to which the engaging members (40, 41) and the locking means (42) are attached,
On the mounting board (38, 39), a vertically long band-like plate (44) is attached to the front surface side so as to be able to move up and down, and a horizontal protruding portion connected in an L-shape from this band-like plate (44). The engaging members (40, 41) are continuously provided upward from the tip of (45), and the locking means (42) is formed in the band-shaped plate (44), and the lower end side is longer in the up-down direction. A strip (46), an operating portion (47) formed at the lower end of the strip (46), a check claw (48) protruding from the back side of the strip (46), and the engaging member (40, 41) is a locked portion (49) provided on the mounting board (38, 39) at a position where the check pawl (48) is engaged when the (40, 41) is at the upper limit position. Swinging the strip (46) in a direction away from the mounting substrates (38, 39) against elasticity to release the check pawl (48) from the locked portion (49). By this, the band until the engagement member (40, 41) reaches the lower limit position Is lowerable constructed plate (44) downwards.

  In the above configuration, when assembling the sliding door, the engaging member that can be raised and lowered is switched to the lowermost position, and the sliding door with the lower roller fitted in the lower grooved guide rail is held by hand, Operate so that the upper grooved roller fits on the upper ridge guide rail. Then, when the upper grooved roller is fitted on the upper ridge guide rail, the engaging member is switched from the lower limit position to the upper limit position, and the upper end thereof is opened on the upper groove guide rail. To fit inside. As a result, in the sliding door, the pair of engaging members in the door lateral movement direction is fitted in the upper grooved guide rail, and the pair of lower rollers in the door lateral movement direction is fitted in the lower grooved guide rail. By doing so, it does not substantially move in the depth direction. When an upward lifting force is applied to the sliding door in this state, the sliding door rises vertically upward with the upward movement of the upper end of the engaging member in the upper grooved guide rail. Since the grooved roller only floats directly above the upper ridge guide rail, if the lifting force acting on the sliding door is eliminated and the sliding door descends due to gravity, the upper grooved roller will surely be the upper ridge. It will be fitted back on the guide rail.

  As is clear from the above description, according to the configuration of the present invention, the external force acting on the sliding door in the front-rear depth direction is applied to the lower-side open upper grooved guide rail through the engaging member on the sliding door side. It is completely eliminated that the upper grooved roller moves in the front and rear depth direction and gets on the upper ridge guide rail, and the upper grooved roller comes off the upper ridge guide rail in the front and rear depth direction. . Therefore, a normal door opening / closing operation can always be performed.

Further , according to the configuration of the present invention , the upper grooved roller, the engaging member, and the engaging member are previously compared with the case where the upper grooved roller, the engaging member, and the locking means must be separately attached to the sliding door. Since it is only necessary to attach the pair of mounting substrates to which the stoppers are attached in the door lateral movement direction to the sliding door, the work on site where the necessary members are attached to the sliding door can be performed easily and efficiently.

Further , according to the configuration of the present invention, the engaging member is moved from the ascending limit position only by swinging the strip in a direction away from the mounting board against the elasticity with the fingertip through the operating portion. The sliding door can be lowered to the lower limit position, and the operation for removing the sliding door can be easily performed. Of course, when the engaging member is set at the ascending limit position, it is possible to automatically engage the check claw on the one side of the strip with the locked portion simply by pushing up the engaging member to the ascending limit position. I can do it.

The band-shaped plate (44) is configured to be insertable upward into a concave groove (43) formed on the surface side of the mounting substrate (38, 39), and the bottom side of the concave groove (43) is formed. The lower end side is provided with a second vertically long strip (50) which is free, and the strip (44) inserted upward in the concave groove (43) is provided with the engagement member (40, 41). A non-return claw (51) can be provided on the lower end side of the second strip (50) to prevent the lower part from further lowering from the position where the lower limit position is reached. According to this configuration, it is possible to easily and easily attach the band-shaped plate provided with the engaging member to the mounting substrate.

FIG. 1 is a plan view of a fully closed state in which an opening is closed by a first door unit and a second door unit at a serial closing position. FIG. 2 is a plan view showing a state where the second door is opened alone. FIG. 3 is a plan view showing the first-door single-unit open state. FIG. 4 is a partially longitudinal side view showing a support structure for the first door alone. FIG. 5 is a partially longitudinal side view showing a support structure of the second door alone. FIG. 6 is a partially longitudinal side view showing a state where the second door unit is superimposed on the outside of the first door unit. FIG. 7 is a front view showing the structure around the opening with the first door unit and the second door unit removed. FIG. 8 is a rear view showing the structure of the four corners on the back side of the first door alone. FIG. 9 is a plan view showing the structure of both ends in the door lateral movement direction of the upper side of the first door alone. FIG. 10 is a bottom view showing the structure of both ends in the door lateral movement direction on the lower side of the first door alone. FIG. 11 is a side view of the inner end side of the first door alone. FIG. 12 is a side view of an outer end side of the first door alone. FIG. 13 is a rear view showing the structure of the four corners on the rear side of the second door alone. FIG. 14 is a plan view showing the structure of both ends in the lateral direction of the door on the upper side of the second door alone. FIG. 15 is a bottom view showing the structure of both ends of the lower side of the second door unit in the lateral direction of the door. FIG. 16 is a side view of the outer end side of the second door alone. FIG. 17 is a side view of the inner end side of the second door alone. FIG. 18 is a rear view showing the upper laterally moving unit for supporting the second door alone. FIG. 19 is a plan view showing an upper-side horizontal unit for supporting a second door alone. FIG. 20 is a plan view showing the lower lateral movement unit for supporting the second door alone. FIG. 21 is a rear view showing the lower unit for supporting the second door alone. FIG. 22 is a cross-sectional plan view showing the internal structure of the horizontal unit provided in each of the upper and lower horizontal units for supporting the second door unit, and an enlarged view of a main part thereof. FIG. 23 is a cross-sectional plan view showing the internal structure of the laterally moving unit when the parallel link shown in FIG. 22 is in the protruding posture, and an enlarged view of a main part thereof. FIG. 24 is a rear view showing the parallel link connecting unit on the upper outer end side provided in the second door alone. FIG. 25 is a cross-sectional plan view of the upper half of FIG. FIG. 26 is a cross-sectional plan view in a state where the parallel link connecting unit shown in FIG. 24 receives the connecting shaft on the parallel link side. FIG. 27 is a cross-sectional bottom view of the lower half of FIG. FIG. 28 is a cross-sectional plan view in a state before the upper inner end side parallel link connection unit of the second door unit receives the connection shaft on the parallel link side. FIG. 29 is a cross-sectional plan view in a state where the parallel link connecting unit shown in FIG. 28 receives the connecting shaft on the parallel link side. FIG. 30 is a rear view showing the supporting roller unit on the upper inner end side of the first door alone. FIG. 31 is a bottom view of FIG. 30. FIG. 32 is a vertical sectional side view showing the stopper control means of the supporting roller unit of FIG. FIG. 33 is a longitudinal sectional side view showing an engaging member of the supporting roller unit of FIG. 30 and its locking means. FIG. 34 is a rear view showing a state before the engagement member of the supporting roller unit of FIG. 30 is assembled. FIG. 35 is a cross-sectional plan view of a main part showing a state where the engaging members of the supporting roller unit of FIG. 30 are assembled. FIG. 36 is a vertical sectional side view showing a state where the engaging member of the supporting roller unit of FIG. 30 is at the lowermost position. FIG. 37 is a longitudinal side view showing an operation state when the engaging member of the supporting roller unit of FIG. 30 is lowered. FIG. 38 is a cross-sectional plan view showing a state where the positioning unit of the second door alone is engaged with the positioning means of the second door alone. FIG. 39 is a vertical sectional front view of the same state. FIG. 40 is a vertical sectional side view of the same state. FIG. 41 is a cross-sectional plan view showing a state in which the positioning unit of the second single door unit is pushed forward with respect to the second door single unit positioning unit. FIG. 42 is a vertical sectional side view showing the same state. FIG. 43 is a partially cutaway plan view showing the state of the inner end of both doors in a fully closed state in which the first door and the second door are in series. FIG. 44 is a cross-sectional plan view showing a main part in the same state. FIG. 45 is a vertical sectional side view in the same state. FIG. 46 is a partially cutaway plan view showing a state where the second door unit is pushed outward with respect to the first door unit. FIG. 47 is a cross-sectional plan view showing a main part in the same state. FIG. 48 is a longitudinal sectional side view in the same state.

  1 to 6, reference numeral 1 denotes a sliding door device, which opens and closes a front opening of a storage space 2. The storage space 2 is formed on a floor plate 3 by left and right vertical outer plates 4a and 4b, a top plate 5, an intermediate vertical partition plate 6 that divides the storage space 2 into two right and left, and a vertical rear plate (not shown). . The sliding door device 1 is provided with a first door unit 7 and a second door unit 8, and the front opening of the storage space 2 is opened and closed by these two door units 7, 8. The two doors 7 and 8 are in the closed position in series and the front opening of the storage space 2 is fully closed, and the position of the first door 7 at this time is the return of the first door 7. The position of the second door unit 8 at this time is the return fixed position of the second door unit 8. FIG. 2 shows an open state of the second door unit 8 in which the second door unit 8 is superimposed on the outside of the first door unit 7 at the return home position, and FIG. , And the first door unit 7 is opened such that the first door unit 7 enters so as to overlap the inside. As shown in FIG. 1, the first door unit 7 and the second door unit 8 refer to the sides adjacent to each other when the two door units 7 and 8 are in the series closed position as inner ends, and the opposite side. The side is called the outer end.

  As shown in FIG. 4 to FIG. 7, a square bar 11 is fixed to the lower surface of the top plate 5 that enters inside from the tip of the top plate 5 along the door lateral movement direction, and between the square bar 11 and the top plate 5. An upper guide rail unit 12 that is continuous in the door lateral movement direction across the entire area between the vertical outer plates 4a and 4b is attached to the outer entry corner of. The upper guide rail unit 12 includes an upper guide rail 13 for supporting a second door unit, an upper guide rail 14 for supporting a first door unit, and a rail unit 15 for attaching members. The upper guide rail 13 for supporting the second door unit includes an upper grooved rail portion 16 of a lower opening which enters into the thickness of the top plate 5, and a lower groove shape of an upper opening located directly below the upper grooved rail portion 16. The first door unit supports the rail 17 and the upper and lower grooved rails 16 and 17 by connecting and integrating the rails 17 with each other. The upper guide rail 14 includes a ridge rail portion 20 integrally formed so as to protrude upward above a tip of a horizontal plate portion 19 extending horizontally from the lower groove rail portion 14 to the front, and a lower groove rail. It is composed of a lower-release auxiliary groove-shaped rail portion 21 formed on the lower side of the portion 17, and the member mounting rail portion 15 is integrally formed on the lower side of the horizontal plate portion 19 with the lower side released. I have.

  In the upper guide rail unit 12, the vertical plate portion 18 b of the horizontal U-shaped rail portion 18 of the upper guide rail 13 for supporting the second door unit is screwed to the front vertical surface of the square bar 11, and the first door unit is supported. A horizontal mounting plate 22 horizontally connected rearward from the auxiliary channel-shaped rail portion 21 of the upper guide rail 14 is screwed to the bottom surface of the square member 11 to be fixed to the lower fixed position of the top plate 5. I have. Although the detailed structure of the upper guide rail unit 12 will be described later, as shown in FIGS. 1 to 3 and FIG. A second door unit positioning means 23 for positioning the second door unit 8 at the return home position is attached to the end portion on the return home position side, and an intermediate predetermined position in the length direction of the member mounting rail unit 15. Stopper members 24 and 25 are attached to end portions of the member attachment rail portion 15 on the return fixed position side of the first door unit 7 respectively.

  The floor panel 3 has a front side located directly below a front vertical surface of the square bar 11 on the top panel 5 side, and is continuous with the front side of the floor panel 3 in the door lateral movement direction over the entire area between the vertical outer panels 4a and 4b. The lower guide rail unit 26 is attached. The lower guide rail unit 26 includes a lower guide rail 28 for supporting a second door alone having a C-shaped rectangular tubular rail portion 27 with a lower open lip, and a C-shaped rectangular tubular rail portion 27 with a lip. A lower guide rail 30 for steadying the first door alone having a grooved rail portion 29 which is located on the front side and which is open to the lower side, and both guide rails 28, 30 serving as top plates of the guide rails 28, 30. The mounting plate portion 31a extends rearward from the lower guide rail 28 for supporting the second door unit and the lower side for supporting the second door unit. The mounting plate portion 31a is screwed to the floor plate 3 in a state where the corner between the guide rail 28 and the front end surface of the floor plate 3 abuts on the surface.

  As shown in FIGS. 8 to 12, the first door unit 7 has supporting roller units 32 and 33 attached at two locations near the upper side of the rear surface, on the inner end side and the outer end side. In the vicinity of the side, anti-sway roller units 34 and 35 are attached just below the support roller units 32 and 33. On the vertical side of the inner end, a thin portion 7a is formed integrally with the rear surface over the entire area in the height direction. The support roller units 32 and 33 are, as shown in the support roller unit 32 on the inner end side shown in FIGS. 30 to 37, ridges on the upper single-unit support upper guide rail 14 of the upper guide rail unit 12. Upper grooved rollers 36, 37 rotatably fitted on the rail portion 20 and rotatable around a horizontal axis are supported by mounting substrates 38, 39. The vertically movable engaging members 40, 41 are attached to the mounting substrates 38, 39 so as to be adjacent to the outer end side of the first door unit 7, and the engaging members 40, 41 are locked at the ascending limit position. A detachable locking means 42 (see FIGS. 34 to 37) for holding is also provided.

  A vertically long band-like plate 44 that can be inserted upward into a concave groove 43 formed on the front surface side of the mounting substrates 38 and 39 is attached to the mounting substrates 38 and 39 so as to be able to move up and down. The engaging members 40 and 41 are continuously provided upward from the distal end of the horizontally provided protruding portion 45. Up and down guide grooves 43a and 43b are formed on both left and right sides of the concave groove portion 43, and ridges 44a and 44b are formed on both left and right sides of the band-shaped plate 44 so as to fit into the guide grooves 43a and 43b. It is configured to allow only the up and down movement of the band-shaped plate 44. The locking means 42 is formed between the two notches 46a and 46b of the band-shaped plate 44, the first band-shaped piece 46 having a free lower end and extending vertically, and formed at the lower end of the first band-shaped piece 46. When the operating portion 47 protrudes downward from the horizontal protruding portion 45, the check pawl 48 protruding from the back side of the strip 46, and the engaging members 40 and 41 are at the ascending limit position, At the position where the check pawl 48 is engaged, a locking portion 49 provided on the mounting substrates 38 and 39 is provided, and the first strip 46 is separated from the mounting substrates 38 and 39 against elasticity. The band-shaped plate 44 is configured to be able to be pulled down until the engagement members 40 and 41 reach the lower limit position by swinging in the direction to release the check pawl 48 from the locked portion 49.

  Further, on the mounting substrates 38, 39, a second band-like piece 50 whose lower end side is free and vertically long is formed between the two notch grooves 50a, 50b, and is formed at the lower end of the second band-like piece 50. The check pawl 51 is engaged with the engaged portion 52 formed on the back surface side of the band-shaped plate 44 so as to prevent the engaging members 40 and 41 from further lowering from the lower limit position. It is configured. On both sides of the concave groove portion 43 in the lateral direction of the door, auxiliary columnar bodies which protrude horizontally at a height slightly lower than the rotation axis of the upper grooved rollers 36 and 37 in a direction away from the back surface of the first door unit 7. 38a, 38b and 39a, 39b protrude. As shown in FIGS. 4 and 6, the tip positions of the auxiliary pillars 38a, 38b and 39a, 39b are in a direction away from the first door unit 7 than the outer surfaces of the upper grooved rollers 36, 37 in side view. It is in a protruding position and is adjacent to the vertical outer surface 17a of the lower grooved rail portion 17 of the upper guide rail 13 for supporting the second door unit of the upper guide rail unit 12 with a small gap.

  As shown in FIG. 8, FIG. 9, and FIG. 30 to FIG. 37, the supporting roller unit 32 on the inner end side of the first door unit 7 has a T-shaped A roller guide member 53 that extends horizontally is connected to the upper end of the first door unit 7 so that the outer protrusion of the roller guide member 53 is flush with the upper end surface of the first door unit 7. Embedded. As shown in FIG. 8, the roller guide member 53 receives a roller (described later) that rolls on the surface of the roller guide strip-shaped rail 54 attached along the upper side of the back surface of the first door unit 7. A roller guide groove 55 which is curved so as to allow the roller to enter into the thickness of the first door unit 7 in a plan view is provided on the upper side, and a stopper control means 56 is provided at the inner end of the roller guide groove 55. Are arranged. The stopper control means 56 includes a horizontal horizontal moving body 57 overlapping with the rear end of the roller guide groove 55, and a vertically-long strip-shaped movable stopper member 58 continuously provided from an outer end side of the horizontal horizontal moving body 57. A concave groove 55a forming the innermost end of the roller guide groove 55 is provided in an upper open state on the inner end side of the horizontal horizontal moving body 57, and the outer end side of the horizontal horizontal moving body 57. A movable piece 59 is formed integrally with the upper end of the movable piece 59 so that the movable piece 59 can be tilted downward against the elasticity with the side having the concave groove 55a as a fulcrum. Has been established.

  The roller guide member 53 is provided with a support hole 60 into which the horizontal traversing body 57 is inserted in a horizontal direction orthogonal to the door traverse direction at a position overlapping with the inner end of the roller guide groove 55. A long hole 61 long in the length direction of the support hole 60, into which the check protrusion 59a of the movable piece 59 is fitted when the horizontal horizontal moving body 57 is inserted from the back side of the first door unit 7 Further, a spring support hole 62a for inserting a compression coil spring 62 is provided below the support hole 60 in parallel with the longitudinal direction of the support hole 60, and the movable stopper is formed by the compression coil spring 62 inserted into the spring support hole 62a. The member 58 and the horizontal moving body 57 are urged in a direction away from the first door unit 7 to the back side. In addition, a cam surface portion 55b on which a roller (described later) that moves in the roller guide groove 55 and enters the concave groove portion 55a at the back end thereof is provided in the concave groove portion 55a of the horizontal horizontal moving body 57. In addition, a roller that reaches the rear end of the roller guide groove 55 is configured to cause the horizontal traversing member 57 to traverse the biasing force of the compression coil spring 62 via the cam surface portion 55b.

  The mounting substrates 38 and 39 of the supporting roller units 32 and 33 are screwed to the back surface of the first door unit 7 with a plurality of wood screws. One of the mounting holes for screwing is used. The two mounting holes 64 are provided in the vicinity of the upper end of the bottom surface of the concave groove 43, and the upper end of the band-shaped plate 44 that closes the mounting hole 64 when the engaging members 40 and 41 are at the ascending limit position. A notch 65 is provided for releasing the mounting hole 64 when the band-shaped plate 44 is lowered to the lower limit position, so that the mounting substrates 38 and 39 can be screwed using the mounting hole 64 without any problem. It is configured as follows. Further, the mounting substrate 38 of the supporting roller unit 32 on the inner end side of the first door unit 7 is provided with a vertically long concave groove portion 66 into which the movable stopper member 58 is fitted. One mounting hole 67 among a plurality of mounting holes for mounting to the door unit 7 is provided in the concave groove portion 63, and a through hole 68 that can be used as an operation hole when a screw is screwed into the mounting hole 67 is provided. The movable stopper member 58 is provided concentrically with the mounting hole 67.

  The support roller unit 32 on the inner end side of the first door unit 7 has an inner end of the first door unit 7 of the mounting board 38, as shown in FIGS. 8, 9, 30, and 31. A strip-shaped locked member 69 having a length extending from the upper end of the vertical side of the side to the vicinity of the inner end of the first door unit 7 protrudes. The band-shaped locked member 69 extends horizontally along the back surface of the first door unit 7, and the region from the tip to the middle of the length direction is the back surface of the first door unit 7. The band-shaped locked member 69 itself forms a protruding portion 69a that gradually curves away from the base plate, and the area between the end of the protruding portion 69a and the mounting substrate 38 is reduced by one step ( A locked concave portion 69b (close to the rear surface of the first door unit 7) is formed.

  As shown in FIGS. 8 to 12, the anti-sway roller units 34 and 35 on the lower side of the first door unit 7 are embedded so as to be flush with the back surface of the first door unit 7. The apparatus includes mounting substrates 70 and 71 to be screwed and anti-sway rollers 72 and 73 rotatable about a vertical axis. The anti-sway roller 73 of the anti-sway roller unit 35 on the outer end side of the first door unit 7 is axially supported on the upper end of a support plate portion 71 a protruding horizontally from the mounting substrate 71. The anti-sway roller 72 of the anti-sway roller unit 34 on the inner end side of the first door unit 7 is integrally connected to the mounting substrate 70 so as to be flush with the bottom surface of the first door unit 7. It is supported on the upper side of the roller guide member 74. These steady rest rollers 72 and 73 are pivotally supported so that the height from the bottom surface of the first door unit 7 and the horizontal separation distance from the back surface of the first door unit 7 are the same. As shown in FIG. 8, a roller guide strip rail 75 vertically symmetrical to the roller guide strip 54 attached to the upper side is attached to the lower side of the back surface of the first door unit 7. The roller guide member 74 receives a roller (described later) that rolls on the surface of the roller guide strip-shaped rail 75, and moves the roller within the thickness of the first door unit 7 in a bottom view (see FIG. 10). The roller guide groove 76 is provided so as to be curved so as to enter the lower side. As is clear from FIGS. 9 and 10, the roller guide groove 55 of the upper roller guide member 53 and the roller guide groove 76 of the lower roller guide member 74 are vertically different on the release side, but have the same shape and the same size. Things.

  As shown in FIGS. 13 to 17, the second door unit 8 has parallel link connecting units 77 to 80 attached near the four corners on the back surface, and is adjacent to the outer end side of the upper outer end side of the parallel link connecting unit 78. Then, a positioning unit 81 acting on the second door unit positioning means 23 is attached. On the vertical side of the inner end of the second door unit 8, a thin portion 8a is formed integrally with the entire surface in the height direction flush with the surface. The upper side parallel link connecting units 77 and 78 are screwed from the main bodies 77 a and 78 a fitted into the second door unit 8 to be flush with the upper end surface of the second door unit 8 and to the back surface of the second door unit 8. The mounting overhanging plate portions 77b, 78b to be stopped are continuously provided, and the main body 77a, 78a has a vertically long connecting shaft fitting hole 82, which is opened on the upper end surface and the outer surface of the main body 77a, 78a. 83 are provided. At the lower ends of these connecting shaft fitting holes 82, 83, enlarged diameter portions 82a, 83a into which flange portions at the lower ends of the connecting shafts are fitted are formed concentrically.

  As shown in FIGS. 24 to 27, the parallel link connecting unit 78 on the outer end side of the second door unit 8 is provided with a movable body 84 that slides in the door lateral movement direction within a main body 78a. An opening / closing lid portion 84a that opens and closes an opening on the outer surface side of the main body of the connection shaft fitting hole 83 is provided in an upper half portion, and an operation concave portion 84b is provided in a lower half portion of the movable body 84. On the outer surface of the main body 78a, an opening 85 long in the door lateral movement direction for sliding the movable body 84 via the operation concave portion 84b is provided, and the opening / closing lid portion 84a is biased and held at a closed position. A compression coil spring 86 is disposed in the main body a. With this configuration, the opening / closing lid portion 84 a is in a state where the opening on the outer surface side of the connection shaft fitting hole 83 is closed by the urging force of the compression coil spring 86, and the operation concave portion 84 b is a half area of the opening 85. It is located in. Therefore, a fingertip is fitted into the operation concave portion 84b of the movable body 84 by using the opening 85, and the open / close lid 84a at the closed position is opened against the urging force of the compression coil spring 86, so that the connection shaft fitting hole is formed. 83 can be opened to the outside of the main body 78a.

  The main body 77a of the parallel link connection unit 77 on the inner end side of the second door unit 8 has a connection shaft fitting hole 82 and an inner end portion of the second door unit 8 as shown in FIGS. An operation movable body 88 that can move in the door lateral movement direction is provided in a hollow portion 87 in which the inner end side of the second door unit 8 is opened. An opening / closing lid 88a for opening and closing the opening on the outer surface side of the main body of the connecting shaft fitting hole 82 is formed at the inner end of the operation movable body 88, and a hollow is formed at the outer end side of the operation movable body 88. An operation lever portion 88b extending outside the portion 87 is formed, and a compression coil spring 89 for urging and holding the operation movable body 88 is provided at a retreat limit position where the opening / closing lid portion 88a opens the connection shaft fitting hole 82. Have been. As shown in FIG. 13, a retaining tongue piece 77d formed between two upper and lower notches 77c is provided on the mounting extension plate portion 77b extending from the main body 77a. A locking portion 77e is protruded from the free end of the tongue piece 77d.

  The operation movable body 88 is inserted into the hollow portion 87 of the main body 77a from its open end in a state where the retaining tongue piece 77d is deformed outwardly against elasticity, and By engaging the locked portion 88c at the end with the locking portion 87a formed inside the open end of the hollow portion 87, as shown in FIG. 29, the opening / closing lid 88a closes the connection shaft fitting hole 82. The operation movable body 88 can be incorporated in the main body 77a at the opened retreat limit position. When the connecting shaft fitting hole 82 is closed by the opening / closing lid 88a, the operating movable body 88 is pushed in by the operating lever 88b against the urging force of the compression coil spring 89, so that the operating movable body 88 is moved to the intermediate position of the operating lever 88b. The provided non-return claw 88d passes over the locking portion 87b formed outside the open end of the hollow portion 87, and the non-return claw 88d is engaged with the inside of the locking portion 87b. The operation movable body 88 can be held at the forward limit position where the opening / closing lid 88a closes the connection shaft fitting hole 82. When it is necessary to open the connection shaft fitting hole 82, the operation lever 88b is bent inward against the elasticity to release the check pawl 88d inward from the locking portion 87b, so that the compression coil spring 89 is opened. The movable body 88 for operation is moved backward by the urging force to the retreat limit position shown in FIG. 28, and the opening / closing lid 88a is released from the opening of the connecting shaft fitting hole 82 to open the connecting shaft fitting hole 82. I can do it.

  As shown in FIG. 13 and FIG. 15, the parallel link connecting units 79 and 80 on the lower side of the second door unit 8 are such that the rear surface and the lower end surface of the second door unit 8 are flush with each other. The main body 90, 91 which is fitted and screwed into the two-door unit 8 is provided with connecting shaft fitting holes 92, 93 vertically open and closed at the lower ends. , 93 are concentric with the connecting shaft fitting holes 82, 83 provided in the parallel link connecting units 77, 78 located directly above the respective parallel link connecting units 79, 80.

  As shown in FIGS. 13, 14, 16, and 38 to 42, the positioning unit 81 provided in the second door unit 8 is a vertically long mounting plate screwed to the back surface of the second door unit 8. A main body 94 comprising a portion 94a, a horizontal plate portion 94b connected horizontally from the upper end of the mounting plate portion 94a in a direction away from the back surface of the second door unit 8, and a second door unit from the tip of the horizontal plate portion 94b. 8 is provided with a vertical columnar engaging portion 95a integrally formed so as to extend in parallel with the door lateral movement direction at the inner end side and protrude from the rear surface side of the second door unit 8 at the front end. A stopper 96, a roller 96 pivotally supported by a vertical support shaft at a notch step formed at an upper corner portion of the horizontal plate portion 94b opposite to the side where the band plate-shaped locking member 95 extends, At a position between the roller 96 and the band-shaped locking member 95, the leading edge of the horizontal plate portion 94b is It is composed of a columnar member 97 projecting vertically upward so that the outer half projects in a plan view, and a buffer member 98 attached to the inner edge of the second door unit 8 of the horizontal plate portion 94b. I have. The roller 96 protrudes outward from a protruding corner of the horizontal plate portion 94b in a plan view, and the cushioning member 98 has an inverted L-shape in vertical section, and its vertical portion is the second door unit 8 of the horizontal plate portion 94b. And a horizontal portion at the upper end thereof is fitted into a protruding corner of the horizontal plate portion 94b and screwed from above.

  As shown in FIGS. 1 to 3 and FIGS. 5 to 7, the upper guide rail 13 for supporting the second door unit of the upper guide rail unit 12 is provided with an upper lateral movement unit 99 for supporting the second door unit. ing. As shown in FIGS. 18 and 19, the second door unit supporting upper side movement unit 99 connects the pair of side movement units 100 and 101 to each other in the door side movement direction. A vertical rotating shaft 103, 104 penetrating in the vertical direction is supported on each of the horizontal moving units 100, 101, and is parallel to the upper end protruding portions of these vertical rotating shafts 103, 104. Links 105 and 106 are attached so that they cannot rotate relative to each other. The two parallel links 105 and 106 are substantially equilateral triangles where the vertical rotation shafts 103 and 104 are located at right angles, and are located outside the second door unit 8 from the vertical rotation shafts 103 and 104. The connecting shafts 107 and 108 to be fitted into the connecting shaft fitting holes 82 and 83 of the pair of parallel link connecting units 77 and 78 on the upper side of the second door unit 8 are provided at the lower end of the long side toward the end. Is protruding. The connecting shafts 107 and 108 have concentric large-diameter flange portions 107a and 108a at the lower end of the cylindrical shaft body. A roller 109 is supported by a vertical support shaft below the short end of the parallel link 105 located on the inner end side of the second door unit 8. Note that the parallel link 106 located on the outer end side of the second door unit 8 does not have a roller supported below the front end portion on the short side, so that a straight line connecting the vertical rotation shaft 104 and the connection shaft 108 is formed. The link may be a link, but the parallel links 105 and 106 have the same shape as each other so as to avoid increasing the types of parts.

  A pair of laterally moving units 100 and 101 of the second door unit supporting upper laterally moving unit 99 in the lateral direction of the door are protruded upward from the parallel links 105 and 106 of the vertical rotation shafts 103 and 104, Anti-vibration rollers 103a, 103b and 104a, 104b respectively rotatably attached to the lower ends of vertical rotating shafts 103, 104 located in the lower cutout recesses of the moving units 100, 101; Supports of the thin portions 100a, 101a protruding outward on the opposite side to the side of the connecting member 102 of the single units 100, 101, which are supported by horizontal support shafts on the opposite side to the side of the second door unit 8, respectively. Rollers 100b and 101b. Then, the upper lateral movement unit 99 for supporting the second door alone supports the anti-sway rollers 103a and 104a in the upper grooved rail portion 16 of the upper guide rail 13 for supporting the second door alone of the upper guide rail unit 12. At the same time, the anti-sway rollers 103b and 104b are fitted into the lower channel-shaped rail portion 17, and the supporting rollers 100b and 101b are rolled into the horizontal U-shaped rail portion 18 on the horizontal band-shaped rail surface 18a. Is fitted.

  As shown in FIGS. 5 to 7, the lower guide rail unit 26 for supporting the second door unit alone of the lower guide rail unit 26 is provided with the lower lateral movement unit 110 for supporting the second door unit alone. As shown in FIGS. 20 and 21, the lower door unit 110 for supporting the second single door unit includes a pair of horizontal units 111 and 112 in the door horizontal direction and a pair of the two horizontal units 111 and 112. A pair of anti-sway rollers 111a, 111b and 112a, 112b in the door horizontal direction are rotatably supported by vertical support shafts on each of the horizontal units 111, 112. In addition, a pair of upper and lower supporting rollers 111d, 111e and 112d, 112e are respectively mounted on horizontal support shafts on the thin portions 111c, 112c of each of the laterally moving units 111, 112 which protrude outwardly on the side opposite to the side where the connecting member 113 is provided. It is rotatably supported by. The pair of anti-sway rollers 111a, 111b and 112a, 112b in the door lateral movement direction is such that the anti-sway rollers 111a, 112a on the side near the inner end of the second door unit 8 are the second doors of the respective horizontal units 111, 112. The anti-sway rollers 111b, 112b on the side close to the outer end of the second door unit 8 are supported by the side of the second door unit 8 so as to protrude from the side surface on the side where the unit 8 is located. It is pivotally supported so as to protrude from a side surface opposite to a certain side. Further, of the pair of upper and lower supporting rollers 111d, 111e and 112d, 112e, the lower supporting rollers 111e, 112e are pivotally supported on the side of the thin portions 111c, 112c on the side where the second door unit 8 is located, The upper supporting rollers 111d and 112d are pivotally supported on the side surfaces of the thin portions 111c and 112c opposite to the side where the second door unit 8 is located.

  Further, a vertical rotation shaft 114, 115 is supported on each of the horizontal moving units 111, 112, and parallel links 116, 117 are provided at lower ends of the vertical rotating shafts 114, 115 projecting downward from the horizontal moving units 111, 112. Are mounted so that they cannot rotate relative to each other. The parallel link 116 is vertically symmetrical with the parallel link 105 of the upper door unit 99 for supporting the second door unit, and a connecting shaft 118 having a curved upper end protrudes upward at the long side end. A roller 119 is supported by a vertical support shaft above the short-side end. The other parallel link 117 is vertically symmetrical with the parallel link 106 of the upper lateral movement unit 99 for supporting the second door unit, and the connection shaft 120 having a protruding upper end at the long side end faces upward. It is projected. Similarly to the upper parallel link 106, the parallel link 117 does not have a roller supported at the front end on the short side, but is the same as the parallel link 116 based on the same idea as the upper parallel links 105 and 106. Use links. In other words, the upper and lower four parallel links 105, 106, 116, 117 all have the same shape.

  As shown in FIG. 5, the lower-side laterally-moving unit 110 for supporting the second door unit includes a lip-shaped C-shaped rectangular tubular rail portion 27 on the lower-side guide rail 28 for supporting the second door unit, of the lower guide rail unit 26. The upper side of each of the laterally moving units 111 and 112 is rotated by a rotational force caused by gravity acting on the parallel links 116 and 117, that is, a rotational force in a direction in which the distal ends of the parallel links 116 and 117 are lowered. The rollers 111d and 112d are in contact with the band-shaped plate member 31 serving as the top plate of the C-shaped rectangular tubular rail portion 27 with lip, and the lower supporting rollers 111e and 112e are connected to the C-shaped rectangular tubular rail portion with lip. 27, a pair of anti-sway rollers 111a-112b in the lateral direction of the door, the inner and outer vertical plate portions 27 of the C-shaped rectangular tubular rail portion 27 having a lip. In contact with the lower end vicinity of 27c.

  A parallel link shown in FIG. 22 and FIG. 23 is provided for a total of four laterally moving units 100, 101 and 111, 112, that is, an upper laterally moving unit 99 for supporting the second unit alone and a lower sidely moving unit 110 for supporting the second unit alone. A posture holding means 121 is provided. Although the figure shows the parallel link posture holding means 121 incorporated in the laterally moving unit 100, the other laterally moving units 100, 111, and 112 have the same configuration and perform the same operations. That is, the parallel link posture holding means 121 includes a cam 122 fixed to the vertical rotation shaft 103 which rotates integrally with the parallel link 105 and one side of the partition member 123 (opposite to the side where the second door unit 8 is located). Side), a first pusher 124 slidably mounted in the door laterally slidable direction, a compression coil spring 125 for urging the first pusher 124 in a direction of the cam 122, and a damper 126 mounted on the opposite side of the partition member 123. , And a second pusher 127 interposed between the damper 126 and the cam 122. The cam 122 includes a first projection 122a acting on the tip cam projection 124a of the first pusher 124, and a second projection 122b acting on the tip cam projection 127a of the second pusher 127.

  The cam 122 is rotatable only within the range of the angle shown in FIG. 22 and the angle shown in FIG. 23 by alternately contacting the bent back surface with the surrounding wall. Since the cam 122 and the parallel link 105 rotate integrally, when the cam 122 is at the angle shown in FIG. 22, the parallel link 105 has its coupling shaft 107. When the cam 122 is in the retreating posture approaching the path (upper guide rail 13 for supporting the second door unit) and the cam 122 is at the angle shown in FIG. 23, the parallel link 105 has its connecting shaft 107. .. Are protruded outwardly away from the lateral movement path (the upper guide rail 13 for supporting the second door alone). That is, all the parallel links 105, 106 and 116, 117 can be horizontally swung only between the retracted posture shown in FIG. 22 and the protruded posture shown in FIG.

  As shown in FIG. 22, when the parallel link 105 is in the retracted position, the cam 122 and the parallel link 105 can rotate only in the direction in which the projecting position shown in FIG. 23 is obtained. The distal end cam projection 124a of the pusher 124 enters the first projection 122a of the cam 122 and is blocked. However, when a rotational force Ff of a certain degree or more for rotating the parallel link 105 in the projecting direction acts on the parallel link 105 in the retracted posture shown in FIG. 22, the tip cam projection 124 a of the cam 122 causes the first pusher 124 to move. The parallel link 105 switches to the protruding posture shown in FIG. 23 while moving backwards against the urging force of the compression coil spring 125. At this time, since the second protrusion 122b of the cam 122 rotates in a direction away from the second pusher 127, the urging force of the damper 126 pushes the second pusher 127, and the second pusher 127 is moved to the tip cam protrusion. The state where the portion 127a contacts the second protrusion 122b of the cam 122 is maintained.

  As shown in FIG. 23, in the parallel link 105 switched to the protruding posture, the tip cam projection 124 a of the first pusher 124 presses the first projection 122 a of the cam 122 with the urging force of the compression coil spring 125. In addition, since the tip cam projection 127a of the second pusher 127 presses the second projection 122b of the cam 122 with the urging force of the damper 126, the rotation is not unexpectedly returned to the retracted posture. However, when a rotational force Fr that is greater than or equal to a certain value for rotating the parallel link 105 in the direction in which the parallel link 105 is switched to the retreating posture is applied to the parallel link 105 having the protruding posture shown in FIG. After the tip cam projection 124a of the pusher 124 comes off, the tip cam projection 124a of the cam 122 receives the urging force of the compression coil spring 125 from the tip cam projection 124a of the first pusher 124, and the cam 122 rotates. Forcibly driven in the direction of the force Fr, the parallel link 105 is switched to the retracted posture shown in FIG. At this time, since the second protrusion 122b of the cam 122 retreats the tip cam protrusion 127a of the second pusher 127, the parallel link 105 vigorously rotates in the retreat posture by the urging force of the compression coil spring 125. Thus, the damping function of the damper 126 is prevented via the second pusher 127.

  By the above operation, all the parallel links 105, 106 and 116, 117 are switched from the retracted posture shown in FIG. 22 to the protruding posture shown in FIG. 23 can be switched to the retracted posture shown in FIG. 22, and can be maintained in the projected posture or the retracted posture after the switching. Thus, it is preferable that the parallel link posture holding means 121 having the above-described configuration be incorporated in all the laterally moving units 100, 101 and 111, 112. Either one of the pair of horizontal units 100 and 101 of the two-unit single support upper horizontal unit 99 and one of the pair of horizontal units 111 and 112 of the second unit single support lower horizontal unit 110 Only one of them may be provided with the parallel link posture holding means 121. Further, even when the parallel link posture holding means 121 is provided in all the laterally moving units 100, 101 and 111, 112, the laterally moving units which do not require the damping function of the damper 126, for example, the rollers 109, 119 as described later. It is also possible to omit the damper 126 and the second pusher 127 from the parallel link attitude holding means 121 provided inside 100, 111 linked to the parallel link 105, 116 whose attitude is restricted via the.

  The second door unit positioning means 23 attached to the second door unit supporting upper guide rail 13 in the upper guide rail unit 12 is, as shown in FIGS. It acts on the positioning unit 81 mounted nearby, and is composed of a main body 128, a cam surface 129, and a columnar member receiving passage 130. The main body 128 includes a mounting plate portion 128a screwed inside the vertical plate portion 18b of the horizontal U-shaped rail portion 18 of the second door unit supporting upper guide rail 13, and a vertical outer plate from one end of the mounting plate portion 128a. The side wall portion 128b is formed of a side wall portion 128b connected outwardly at a right angle along 4a, and a top plate portion 128c connecting the upper end of the mounting plate portion 128a and the upper end of the side wall portion 128b. The top plate portion 128c is formed integrally with the side wall portion 128b and has a thick portion 128d extending forward in the form of a strip. The side wall portion 128b extends below the thick portion 128d. The cam surface 129 is formed on the inner surface. The cam surface 129 receives the roller 96 of the positioning unit 81, and is curved in a plan view so as to guide the received roller 96 forward while slightly moving the received roller 96 toward the vertical outer plate 4a. Further, the columnar member receiving passage 130 receives the upper end of the columnar member 97 of the positioning unit 81 projecting above the height of the roller 96, and includes a side surface of the thick portion 128d and the thick portion 128d. When the roller 96, which is formed between the guide plate portion 128e and the guide plate portion 128e integrally formed with the roller 96 and rolls forward along the cam surface 129, reaches approximately half the length of the cam surface 129. 41, when the upper end of the columnar member 97 enters the columnar member receiving passage 130 and the roller 96 reaches the outer end of the cam surface 129, the upper end of the columnar member 97 receives the upper end of the columnar member 97 as shown in FIG. It has a portion 128f.

  The second door single unit positioning means 23 attached to the upper guide rail unit 12 is, as shown in FIGS. 38 and 39, a mounting plate portion 128a having a horizontal U-shaped rail portion of the second door single support upper guide rail 13. 18 is screwed inside the vertical plate portion 18b, and the screw through hole provided on the mounting plate portion 128a side is a long hole in the door lateral movement direction, and the second door single unit positioning means 23 is mounted. It is desirable that the position be adjustable within a certain range in the door lateral movement direction. Also, the stopper members 24 and 25 attached to the upper guide rail unit 12 are provided with mounting seats that can be fitted only to the member mounting rail portions 15 of the grooved stepped surface with the lip that is opened downward so as to be slidable only in the longitudinal direction. Stopper members 24 and 25 are connected to the mounting seat, and the mounting seat is fixed by, for example, pressing the tip of a fastening screw screwed up and down to the downward bottom surface of the member mounting rail 15. It is desirable to adopt a fixed structure so that the mounting position can be adjusted in the door lateral movement direction.

  The use method and operation of the sliding door device using the sliding door device of the present invention configured as described above will be described below. The first door unit 7 is assembled first, and the second door unit 8 is assembled later. However, at the time of assembling the single doors 7 and 8, the upper and lower pair of upper and lower second horizontal unit for supporting the second door unit 8 and the upper and lower pair of second door single unit supporting the second door unit 8 are mounted on the upper side. The upper guide rail 13 for supporting the second door unit of the guide rail unit 12 and the lower guide rail 28 for supporting the second door unit of the lower guide rail unit 26 are respectively movably mounted in advance. Prior to the assembling of the first door unit 7, the upper and lower pair of upper and lower lateral movement units 99 for supporting the second door unit and the lower unit 110 for supporting the second door unit are moved to the return fixed position side of the first door unit 7. (The end on the side where the vertical outer plate 4b is located), and pull all the parallel links 105, 106 and 116, 117 toward the front end with the connecting shafts 107, 108 and 118, 120 by hand. , The projection posture shown in FIG.

  Prior to assembling the first door unit 7, the engaging members 40, 41 of the pair of support roller units 32, 33 on the upper side are switched to the lower limit position shown in FIG. The band-shaped plate 44 provided with the engaging members 40 and 41 is directed upwardly to the groove 43 so that the ridges 44 a and 44 b on both sides are fitted into the guide grooves 43 a and 43 b on the left and right sides of the groove 43. As shown in FIG. 36, the engaged portion 52 is pushed up to a height at which the engaged portion 52 is received by the check pawl 51 of the second strip 50, so that the engaging members 40 and 41 are lowered to the lower limit position shown in FIG. Is fixed to the mounting substrates 38 and 39 while being held in the position, but the belt-like plate 44 is further pushed up so that the check pawl 48 climbs over the locked portion 49 and the upper side of the locked portion 49. 33, that is, when the engaging members 40 and 41 are switched to the ascending limit position as shown in FIG. , With the belt-like plate 44 pulled down, As shown in 36, previously switched engaging members 40 and 41 to the lowering limit position.

  The first door unit 7 to be assembled is parallel to the second door unit supporting upper lateral movement unit 99 and the second door unit supporting lower lateral unit 110 which are brought closer to the return home position of the first door unit 7. Of the links 105, 106 and 116, 117, they are assembled between the parallel links 106, 117 having a protruding posture on the return fixed position side of the second door unit 8 and the vertical outer plate 4 a. That is, first, the first door unit 7 is lifted, and the anti-sway rollers 72, 73 of the anti-sway roller units 34, 35 on the lower side of the first door unit 7 are moved downward by the lower unit of the lower guide rail unit 26. With the roller guide member 74 and the support plate 71 a pivotally supporting the anti-sway rollers 72, 73 in a state of being fitted into the groove-shaped rail portion 29 of the side guide rail 30 from below, the lower part of the outside of the groove-shaped rail portion 29. The first door unit 7 is lifted to the upper limit height where it comes into contact with the side edge. In this state, the upper side of the first door unit 7 is tilted toward the upper guide rail unit 12, and the tips of the auxiliary columnar bodies 38a, 38b and 39a, 39b of the supporting roller units 32, 33 are connected to the upper guide rail unit. At 12, the vertical outer surface 17 a of the lower channel-shaped rail portion 17 of the upper guide rail 13 for supporting the second door unit is located immediately above the ridge rail portion 20 of the upper guide rail 14 for supporting the first door unit. As a result, the upper grooved rollers 36, 37 of the support roller units 32, 33 are located almost directly above the ridge rail portion 20 of the first door single support upper guide rail 14, so that the lifting is performed in this state. The first door unit 7 is lowered, and the upper grooved rollers 36 and 37 are fitted and supported on the ridge rail portion 20. The auxiliary columnar bodies 38a, 38b and 39a, 39b are provided two by two on each of the supporting roller units 32, 33, but the objective can be achieved if one is provided.

  As a result of the above operation, as shown in FIG. 4, the first door unit 7 has its upper side suspended laterally by the ridge rail portion 20 via the upper grooved rollers 36 and 37, and at the same time, has a groove-shaped rail portion. 29 is held in a vertical position by the anti-sway rollers 72 and 73 on the lower side fitted to 29, and can move in the vertical position along the first horizontal movement path 9. Since the upper grooved rollers 36 and 37 are fitted and supported by the ridge rail portion 20, the upper side of the first door unit 7 is slightly corrected in front, so that the auxiliary columnar bodies 38a, 38b and 39a, The tip of 39b is slightly separated from the vertical outer surface 17a, and the tip of the auxiliary columnar bodies 38a, 38b and 39a, 39b may slide on the vertical outer surface 17a when the first door unit 7 moves in the lateral direction. There is no. If it is confirmed that the first door unit 7 has been properly assembled, the band-shaped plates 44 of the pair of supporting roller units 32 and 33 on the upper side are pushed up, and as shown in FIG. Move over the locked portion 49 and engage with the upper side of the locked portion 49, and the upper end portions of the engaging members 40 and 41 are connected to the upper guide rail unit 12 as shown in FIG. It is fitted into the auxiliary groove-shaped rail portion 21.

  When the first door unit 7 is assembled as described above, the position of the upper side of the first door unit 7 provided with the upper grooved rollers 36, 37 in the front-rear depth direction is aligned with the upper grooved rollers 36, 37. Since it is accurately determined by the fitting with the rail portion 20, the play allowance between the auxiliary groove-shaped rail portion 21 of the upper guide rail unit 12 and the engaging members 40, 41 in the front-rear depth direction is sufficiently narrowed. Even so, the lateral movement of the first door unit 7 can be smoothly performed without any trouble. Thus, by the engagement between the auxiliary groove-shaped rail portion 21 and the engaging members 40 and 41, an external force in the front-rear depth direction acts on the upper side of the first door unit 7 provided with the upper grooved rollers 36 and 37. Even so, there is no possibility that the upper grooved rollers 36 and 37 may come off the ridge rail portion 20. Of course, when an upward external force acts on the first door unit 7, the first door unit 7 rises in a range until the upper ends of the engagement members 40 and 41 abut against the lower bottom surface of the auxiliary channel-shaped rail portion 21. However, since the first door unit 7 does not move in the front-rear depth direction as described above, if the raised first door unit 7 drops by gravity, the upper grooved rollers 36 and 37 drop directly below. Then, it always returns to the initial state in which it is fitted to the ridge rail portion 20.

  Next, prior to assembling the second door unit 8, the second door unit supporting upper side oscillating unit 99 and the second door unit supporting lower traverse unit which are brought closer to the return home position of the first door unit 7. The unit 110 is moved to near the center of the upper guide rail unit 12 and the lower guide rail unit 26 with the parallel links 105, 106 and 116, 117 switched to the protruding posture shown in FIG. The single door unit 7 is moved laterally to the return fixed position of the first door unit 7. The vertical outer surface of the mounting substrate 39 of the supporting roller unit 33 on the upper outer end side of the first door unit 7 abuts on the cushioning material 25a of the stopper member 25, and the first door unit 7 returns to the home position. When the lateral movement is stopped, as shown in FIGS. 47 and 48, the movable stopper member 58 included in the supporting roller unit 32 on the upper inner end side of the first door unit 7 is moved to the upper guide rail unit 12. The first door unit 7 is locked at the return fixed position by engaging with the stopper member 24 attached to the member attaching rail 15.

  More specifically, the movable stopper member 58 included in the supporting roller unit 32 is held at the limit position protruding inward by the urging force of the compression coil spring 62, but the first door unit 7 is returned to the return fixed position. Immediately before reaching, the movable stopper member 58 overcomes the urging force of the compression coil spring 62 and moves over the stopper member 24 while moving backward with sliding contact between the slope portion 58b and the slope portion 24b of the stopper member 24. As a result, the vertical rear end face 58a of the movable stopper member 58 and the vertical front end face 24a of the stopper member 24 that have returned to the limit position by the urging force of the compression coil spring 62 face in the door lateral movement direction. The movable stopper member 58 and the stopper member 24 prevent the first door unit 7 that has reached the home position from laterally moving in the reverse direction. . That is, the first door unit 7 is locked at the return fixed position in a state where the first door unit 7 is sandwiched by the stopper member 24 and the stopper member 25 from the front and rear in the door lateral movement direction. Then, in order to adjust the position of the locked first door unit 7, the fixing position of the stopper members 24 and 25 can be finely adjusted in the length direction of the member mounting rail portion 15.

  Next, with the second door unit 8 lifted, the connection shaft fitting hole 92 of the parallel link connection unit 79 on the lower inner end side is exposed outside the lower side of the first door unit 7. Along with the shaft 118, that is, the connection shaft 118 at the tip of the parallel link 116 which is pivotally supported by the laterally moving unit 111 of the second door unit supporting lower laterally moving unit 110, it is fitted so as to cover from above, and Connection of the distal end of the parallel link 117 that is pivotally supported by the connecting shaft fitting hole 93 of the lower outer end side parallel link connecting unit 80 to the laterally moving unit 112 of the second door unit supporting lower laterally moving unit 110. The shaft 120 is fitted so as to cover from above. At this time, in the second door unit 8, the connecting shaft fitting hole 82 of the parallel link connecting unit 77 on the upper inner end side is previously switched to the open state. That is, the operation lever 88b of the operation movable body 88 shown in FIG. 29 is pressed inward against the elasticity to release the check pawl 88d from the locking portion 77e, and the operation movable body 88 is compressed. By moving backward by the urging force of the coil spring 89, as shown in FIG. 28, the open / close lid 88a at the tip of the movable body 88 for operation is moved backward to the entrance side of the connection shaft fitting hole 82, thereby connecting The shaft fitting hole 82 can be switched to the open state.

  Next, as described above, the pair of parallel link connecting units 79 and 80 on the lower side side in the door lateral movement direction are paired with the pair of parallel links 111 and The second door unit 8 whose lower side is supported by the distal ends of the parallel links 111 and 117 is engaged with the connecting shafts 118 and 120 at the distal ends of the 117, and the upper side of the second door 8 is It is raised on a certain side, and is supported by the upper guide rail 13 for supporting the second door unit alone in the connection shaft fitting holes 82, 83 of the pair of parallel link connection units 77, 78 in the door lateral movement direction on the upper side. The connection shafts 107 and 108 at the distal ends of the parallel links 105 and 106 of the second door unit supporting upper lateral movement unit 99 are fitted. However, as described above, one of the connection shaft fitting holes 82 is released beforehand. But the other parallel link As shown in FIGS. 24 and 25, the connection shaft fitting hole 83 on the unit 78 side is held by the biasing force of the compression coil spring 86 in a state closed by the opening / closing lid 84a of the movable body 84. A direction in which an operator holding the outer end side of the second door unit 8 having the parallel link connecting unit 78 opens the opening / closing lid portion 84 a with the fingertip in the operation concave portion 84 b against the urging force of the compression coil spring 86. 26, the connecting shaft fitting hole 83 is opened as shown in FIG.

  In the above state, the second door unit 8 is raised with its upper side on the side where the upper guide rail unit 12 is located, and the connection shaft fitting of the pair of parallel link connection units 77 and 78 in the door lateral movement direction on the upper side is performed. The connecting shafts 107 and 108 at the distal ends of the parallel links 105 and 106 of the second door single-unit upper supporting lateral movement unit 99 supported by the second door single-unit supporting upper guide rail 13 are fitted into the holes 82 and 83. Can be done. Thereafter, the fingertip is released from the operation concave portion 84b of the movable body 84 of the parallel link connection unit 78, and the movable body 84 is returned and moved by the urging force of the compression coil spring 86. The connection shaft fitting hole 83 into which the connection shaft 108 is fitted is closed. The connecting shaft fitting hole 82 of the parallel link connecting unit 77 in which the connecting shaft 107 is fitted, opposes the operating lever portion 88 b of the operating movable body 88 in the state shown in FIG. 28 against the urging force of the compression coil spring 89. By pushing in and engaging the check pawl 88d with the locking portion 77e, it can be closed by the opening / closing lid 88a as shown in FIG. The connecting shafts 107 and 108 fitted in the connecting shaft fitting holes 82 and 83 have the flange portions 107a and 108a at the lower ends thereof enter the enlarged diameter portions 82a and 83a at the lower ends of the connecting shaft fitting holes 82 and 83. Therefore, each of the connection shafts 107 and 108 suspends the second door unit 8 via the flange portions 107a and 108a at the lower ends.

  In the second door unit 8 incorporated as described above, the parallel links 105, 106 and 116, 117 supporting the second door unit 8, and the respective laterally moving units 100, 101, 111, 112 are housed inside. As shown in FIG. 23, the parallel link posture holding means 121 is held in a protruding posture, so that it can traverse in the second lateral movement path 10 outside the first door unit 7. As shown in FIG. 6, the upper and lower parallel links 105 and 116 in the protruding posture on the inner end side of the second door unit 8 in the second lateral movement path 10 have their rollers 109 and 119 in the return fixed position. Since the rolls abut on the upper and lower roller guide belt-shaped rails 54 and 75 on the back surface of the locked first door unit 7, the horizontal units 100 and 111 face the inside of the first horizontal path 9. Even if it is pushed, the posture parallel to the second lateral movement path 10 in the second lateral movement path 10 is maintained.

  When the second door unit 8 is moved in a direction overlapping with the outside of the first door unit 7 locked at the return fixed position at one end of the first lateral movement path 9, that is, in the opening direction, FIG. As described above, when the second door unit 8 reaches the end of the stroke, the buffer member 98 of the positioning unit 81 located near the upper side of the back surface of the outer end of the second door unit 8 is locked at the return fixed position. At the same time that it comes into contact with the end surface of the thin portion 7a at the inner end of the first door unit 7, the strip-shaped locking member 95 of the positioning unit 81 supports the inner side upper side of the first door unit 7. The roller unit 32 enters the inside of the band-shaped locked member 69, and the locking portion 95 a at the tip of the band-shaped locked member 95 climbs over the protruding portion 69 a of the band-shaped locked member 69. After that, the band plate-shaped locking member 95 is elastically returned to engage with the locked concave portion 69b. That. That is, the second door unit 8 is automatically locked at the stroke end in the opening direction overlapping with the outside of the first door unit 7 locked at the return home position as shown in FIG. There is no. In this state, a substantially half area (about a half area on the return fixed position side of the second door unit 8) between the intermediate vertical partition plate 6 and the vertical outer plate 4a of the storage space 2 is opened. .

  From the state where the return fixed position side of the second door unit 8 shown in FIG. 2 is opened, the band plate-like locking member 95 is attached to the second door unit 8 by the band plate-like locked member 69 on the first door unit 7 side. When an operating force large enough to be able to be separated from the elastic member against the elasticity is applied in the closing direction, the second lateral movement is performed by the parallel links 105, 106 and 116, 117 held in the protruding posture as described above. The second door unit 8 held in the path 10 supports the second door unit supporting upper lateral movement unit 99 and the second door unit supporting lower lateral movement unit 110 supporting the parallel links 105. At the same time, it is possible to go straight in the closing movement direction in the second lateral movement path 10. When the second door unit 8 reaches just before the end of the closing stroke, the rollers 109 and 119 of the upper and lower parallel links 105 and 116 on the inner end side guide the upper and lower rollers on the back surface of the first door unit 7. From the belt-shaped rails 54, 75, into the roller guide grooves 55, 76 provided in the roller guide members 53, 74 of the upper and lower supporting roller units 32, 34 on the inner end side of the first door unit 7 shown in FIGS. It enters and is guided within the thickness of the first door unit 7 in plan view. As a result, the upper and lower parallel links 105 and 116 on the inner end side are forcibly switched from the protruding posture shown in FIG. 23 to the retracted posture shown in FIG. As a result, the second door unit 8 moves from the inside of the second lateral movement path 10 to the inside of the first lateral movement path 9 with the swinging of the upper and lower parallel links 106 and 117 from the projecting posture to the retracted posture. While moving in parallel, as shown in FIG. 1, it finally reaches the return fixed position in series with the first door unit 7 locked in the return fixed position in the same first lateral movement path 9. In this state, the entire area of the storage space 2 is closed by the first door unit 7 and the second door unit 8 which are located at the return fixed position in the first lateral movement path 9 and are arranged in series. In addition, the thin portion 8a at the inner end of the second door unit 8 overlaps the thin portion 7a at the inner end of the first door unit 7.

  As shown in FIG. 1, the second door unit 8 moves in parallel from the second lateral movement path 10 into the first lateral movement path 9, and returns to the home position where the first lateral movement path 9 is adjacent to the vertical outer plate 4 b. When the second door unit 8 reaches the return fixed position in series with the first door unit 7 locked at the position shown in FIG. 38 and FIG. The roller 96 of the unit 81 enters under the thick portion 128d of the second door unit positioning means 23 on the upper guide rail unit 12 side, contacts the cam surface 129 and stops. At this time, the columnar member 97 of the positioning unit 81 has its upper end located before the thick portion 128d. On the other hand, as shown in FIG. 43, the roller 109 of the parallel link 105 that has entered the roller guide groove 55 of the upper supporting roller unit 32 on the inner end side of the first door unit 7 is at the end of the roller guide groove 55. When the roller reaches, the roller 109 enters into the concave groove portion 55a of the horizontal horizontal moving body 57 overlapping the terminal end of the roller guide groove 55, and the roller 109 comes into contact with the cam surface portion 55b of the concave groove portion 55a and the horizontal horizontal moving body 57. , The movable stopper member 58 is retracted into the concave groove 66 against the urging force of the compression coil spring 62. As a result, as shown in FIGS. 44 and 45, the movable stopper member 58 is switched to the non-operating state in which the movable stopper member 58 is separated from the stopper member 4 on the upper guide rail unit 12 side in the front-rear depth direction in a side view.

  When opening the second door unit 8 from the fully closed state shown in FIG. 1, the second door unit 8 is pulled toward the first door unit 7 located at the return fixed position. As a result, the upper lateral movement unit 99 for supporting the second single door unit via the parallel links 105 and 106, and the lower lateral movement unit 110 for supporting the second single door unit via the parallel links 116 and 117, The door unit 8 tries to traverse integrally with the second door unit 8 in the direction of the first door unit 7, and the rollers 109, 119 of the pair of upper and lower parallel links 105, 116 on the side of the lateral movement direction are It moves in the direction away from the terminal position in the roller guide grooves 55 and 76 of the supporting roller units 32 and 34 on the inner end side of the single unit 7, and as a result, when the second unit 8 starts to traverse. All the parallel links 105, 106 and 116, 117 swing in parallel from the retracted position shown in FIG. 22 to the protruding position shown in FIG. 23, and the second door unit drawn toward the first door unit 7 8 is this With the parallel swinging movement of the parallel links 105, 106 and 116, 117, the parallel link 105 moves from the return fixed position in the first horizontal movement path 9 to the second horizontal movement path 10 while parallelly moving obliquely outward. . At this time, the moving route of the second door unit 8 is only opposite in direction to the moving route immediately before the end when the second door unit 8 is closed from the open state of the second door unit 8 shown in FIG. 38, the thin portion 8a at the inner end of the second door unit 8 moves apart from the thin portion 7a at the inner end of the first door unit 7 without pushing each other in the door lateral direction. The roller 96 and the columnar member 97 of the positioning unit 81 shown in FIG.

  As shown in FIG. 46, the rollers 109 and 119 of the pair of upper and lower parallel links 105 and 116 on the side in the lateral movement direction of the second door unit 8 are supported by the support roller units 32 and 34 on the inner end side of the first door unit 7. The second door unit 8 has completely reached the second lateral movement path 10 when moving from the roller guide grooves 55, 76 to the roller guide strip rails 54, 75 above and below the back surface of the first door unit 7. 23. Thereafter, as shown in FIG. 23, the upper side laterally moving unit for supporting the second door unit alone via the parallel links 105, 106 and 116, 117 in a state where the protruding posture is held by the parallel link posture holding means 121, as shown in FIG. The second door unit 8 is opened in the second horizontal movement path 10 in a state where the lower side movement unit 110 for supporting the second door unit 99 is pushed back as shown in FIG. Opening overlapping the outside of the first door unit 7 When reaching the limit position, as described above, the cushioning member 98 and the band-shaped locking member 95 in the positioning unit 81 at the inner end of the second door unit 8 and the band-plate-shaped locking member 95 on the first door unit 7 side The second door unit 8 is held at the opening limit position via the locked member 69.

  When the second door unit 8 at the return fixed position is opened as described above, the rollers 109 and 119 of the pair of upper and lower parallel links 105 and 116 on the side in the lateral movement direction of the second door unit 8 are moved by the first door unit 8. 7 is moved away from the terminal position of the roller guide grooves 55 and 76 of the supporting roller units 32 and 34 on the inner end side of FIG. 7, but at the first stage, as shown in FIGS. The horizontal moving body 57 of the stopper control means 56 overlapping with the end of the roller guide groove 55 of the roller unit 32 is retracted against the urging force of the compression coil spring 62 via the cam surface 55b of the concave groove 55a. 48, the movable stopper member 58 of the stopper control means 56 is moved away from the compression coil spring 6 as shown in FIG. It is in the biasing force of the return to the projecting initial position. As a result, immediately after the second door unit 8 starts to open, as shown in FIGS. 47 and 48, the vertical rear end face 58a of the movable stopper member 58 and the vertical front end face 24a of the stopper member 24 move horizontally. The first door unit 7 at the return fixed position is locked again in a state where the first door unit 7 cannot move to the return fixed position side of the first lateral movement path 9 to the second door unit 8. . Therefore, when the second door unit 8 is opened as described above, the first door unit 7 does not open even if an external force acts in a direction to open the first door unit 7 from the return fixed position. The return fixed position side of the second door unit 8 can be reliably opened.

  When opening the first door unit 7 from the fully closed state shown in FIG. 1, the first door unit 7 is placed on the side where the second door unit 8 is located at the return fixed position in the first lateral movement path 9. Attraction. As a result, the roller guide grooves 55 and 76 of the support roller units 32 and 34 on the inner end side of the first door unit 7 operate in the same manner as in the opening operation of the second door unit 8 described above. As the single door unit 7 opens, all the parallel links 105, 106 and 116, 117 supporting the second door unit 8 are switched from the retracted position to the protruding position, and the second door unit 8 is moved to the third position. The second door unit 8 moves in parallel from the one horizontal movement path 9 into the second horizontal movement path 10, in the opening direction of the first door unit 7 (the side where the vertical outer plate 4 a is located). Since the moving force is received from the first door unit 7, the roller 96 of the positioning unit 81 at the outer end of the second door unit 8 is moved by the cam surface 129 of the second door unit positioning means 23, as shown in FIG. Is pressed. As a result, the second door unit 8 moves parallel to the roller 96 so that the roller 96 follows the curvature of the cam surface 129. In the latter half of this process, the upper end of the columnar member 97 of the positioning unit 81 is The second door single unit positioning means 23 is guided by the side surface of the thick portion 128 d and enters the columnar member receiving passage 130. Then, when the parallel links 105, 106 and 116, 117 are switched to the protruding postures and the second door unit 8 reaches the inside of the second lateral movement path 10, the positioning unit 81 as shown in FIGS. Roller 96 reaches the outer end of the cam surface 129 of the second door unit positioning means 23, and the upper end of the columnar member 97 reaches a position where it can be received by the terminal end portion 128f of the columnar member receiving passage 130.

  By the above operation, when the first door unit 7 opens, the second door unit 8 that has moved in parallel from the first horizontal movement path 9 into the second horizontal movement path 10 opens along the second horizontal movement path 10. The second door unit 8 is opened outside the first door unit 7 which is opened and closed by the upper end of the columnar member 97 being fitted into the columnar member receiving passage 130 even if an external force in the direction of the columnar member 97 is received. There is no fear. As shown in FIG. 3, when the opening first door unit 7 reaches the end of the first horizontal movement path 9 in the opening direction, the second door unit 8 shown in FIG. It is positioned by the simplex 8. That is, as described above, the second door unit 8 that has moved in parallel from the return fixed position in the first lateral movement path 9 to the second lateral movement path 10 is fitted into the columnar member 97 and the columnar member receiving passage 130. The locking unit 95a at the tip of the band-shaped locking member 95 in the positioning unit 81 of the second door unit 8 and the supporting roller unit of the first door unit 7 that has reached the open limit position. 32 is engaged with the locked concave portion 69b of the band-shaped locked member 69, and the first door unit 7 which has reached the opening limit with respect to the locked second door unit 8 is positioned. Become.

  Although the sliding door of the sliding door device of the present invention can be used as the first door unit 7 in the sliding door device as described above, it is of course also possible to use it as a one-sided sliding door or a double-sided sliding door. Although not shown, a handle of another component used at the time of opening and closing operation is attached to the outer end side of each of the first door unit 7 and the second door unit 8 or a recess for the handle is formed. Can be done.

The sliding door device according to the present invention has a configuration in which a pair of grooved rollers laterally supported in the lateral direction supported on the upper side of the sliding door are slidably suspended by one ridge rail, and the opening and closing of the entrance of the storage space. It can be used as a sliding door device for opening and closing passages and passages.
Can be used as

REFERENCE SIGNS LIST 1 sliding door device 2 storage space 3 floor plate 5 top plate 6 intermediate vertical partition plate 7 first door unit 7a thin section 8 second door unit 8a thin section 9 first lateral movement path 10 second lateral movement path 11 square member 12 upper side Guide rail unit 13 Upper guide rail for second door unitary support 14 Upper guide rail for first door unitary support 15 Member mounting rail unit 16 Upper channel-shaped rail unit 17 Lower channel-shaped rail unit 18 Lateral U-shaped rail unit 19 Horizontal plate Part 20 Ridge rail part 21 Auxiliary grooved rail part 22 Horizontal plate part for attachment 23 Second door single unit positioning means 24, 25 Stopper member 25a, 98 Buffer material 26 Lower guide rail unit 27 C-shaped rectangular cylindrical rail part with lip 28 Lower guide rail for supporting the second door unit alone 29 Groove-shaped rail portion 30 Lower guide rail for the first door unit steady rest 32, 33 Roller unit 33 Bearing member 34, 35 Anti-sway roller unit 36, 37 Upper grooved roller 40, 41 Engaging member 42 Locking means 43 Depressed groove 43a, 43b Guide groove 44 Strip-shaped plate 44a, 44b Ridge 45 Horizontal Projection 46 First strip 46a, 46b, 50a, 50b Notch groove 47 Operating part 48, 51 Non-return claw 49, 52, 88c Locked part 50 Second strip 53, 74 Roller guide member 54, 75 Roller Guide strip-shaped rail 55 Roller guide groove 55a Depressed groove 56 Stopper control means 57 Horizontal moving body 58 Movable stopper member 59 Movable piece 59a Non-return protrusion 60 Support hole 61 Slot 62, 86, 89, 125 Compression coil spring 63, 66 Depressed groove 69 band-plate-shaped locked member 69a protruding portion 69b locked concave portion 72, 73, 3a, 103b, 104a, 104b, 111a, 111b, 112a, 112b Anti-sway rollers 77 to 80 Parallel link connecting unit 81 Positioning unit 82, 83 Connecting shaft fitting hole 82a, 83a Large diameter portion 84 Movable body 84a, 88a Open / close Lid 84b Operating recess 85 Opening 87a, 87b, 95a Locking portion 88 Operating movable body 88b Operating lever portion 92, 93 Connecting shaft fitting hole 95 Band-shaped locking tool 96, 109 Roller 97 Columnar member 99 First Upper door unit for supporting two units alone 100, 101, 111, 112 Lateral unit 102, 113 Connecting member 100b, 101b, 111d, 111e, 112d, 112e Supporting rollers 103, 104, 114, 115 Vertical rotation axis 105, 106, 116, 117 Parallel link 107, 10 , 118, 120 Connecting shaft 107a, 108a, 118a, 120a Flange part 110 Lower lateral movement unit for supporting the second door alone 121 Parallel link attitude holding means 122 Cam 123 Partition member 124 First pusher 126 Damper 127 Second pusher 129 Cam Surface 130 columnar member receiving passage

Claims (2)

One upper protruding rail portion that protrudes upward and movably supports the upper end side of the sliding door, and a lower open groove rail portion that positions the lower end side of the sliding door movably, is provided. A pair of upper grooved rollers that are rotatably fitted and supported on the upper protruding rail portion and are rotatable around a horizontal axis and are fitted in the grooved rail portion; a sliding door device rotatable Toyokodo direction a pair of anti-vibration roller is provided about a vertical axis,
An auxiliary groove-shaped rail portion that is open downward is provided in parallel with the upper ridge rail portion, and the sliding door has a lower limit position separated downward from the auxiliary groove-shaped rail portion and an upper end portion in the auxiliary groove-shaped rail portion. An engaging member that can be moved up and down between the ascending upper limit position where the fitting member is fitted is provided at a position near each of the upper grooved rollers. A detachable locking means for locking and holding at a limited position is provided, and a pair of mounting substrates are mounted on the sliding door in the door lateral movement direction, and the upper grooved roller is mounted on each of the mounting substrates. In the sliding door device which is supported and to which the engaging member and the locking means are attached,
A vertically long band-shaped plate is attached to the surface of the mounting substrate so as to be able to move up and down, and the engaging member is connected upward from the tip of a horizontal protruding portion provided in an L-shape from the band-shaped plate. The locking means is provided on the band-shaped plate, a lower end side is a vertically long band-shaped piece, an operation portion formed at a lower end of the band-shaped piece, and a protruding portion is provided on the back side of the band-shaped piece. A check claw, and a locked portion provided on the mounting substrate at a position where the check claw is engaged when the engaging member is at the ascending limit position, and the band-shaped piece is elastically formed. By swinging in a direction away from the mounting substrate to disengage the check claw from the locked portion, the band-shaped plate is lowered until the engagement member reaches the lower limit position. Sliding door device configured to be retractable. The band-shaped plate is configured to be able to be inserted upward into a groove formed on the front surface side of the mounting substrate, and a second band-shaped piece whose lower end is free in the vertical direction is provided on the bottom side of the groove. A check claw that prevents the engagement member from descending further downward from the position where the engagement member has reached the lower limit position is provided with a check claw of the second belt-like piece. The sliding door device according to claim 1, which is provided at a lower end side .

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