JP4531605B2 - Hanging telescopic door - Google Patents

Description

  The present invention relates to a suspended telescopic door formed by suspending an extendable door body by a door cart traveling along a guide rail.

  In a suspension-type telescopic door, a guide rail is installed between the upper part of the suspension support column and the door-supporting column via an upper frame. There is a telescopic door body with a pantograph mechanism or the like in which a frame and an intermediate portion are suspended, and the telescopic door body in a suspended state is expanded and contracted along a guide rail.

  In this type of hanging-type telescopic door, locking means and a dropping bar are provided on the moving side end frame side, and the locking means is locked to a door-supporting column in a closed state, and the dropping bar is in a contracted state and others. May drop into a pit on the ground and lock. In this case, if the moving side end frame swings in an unstable manner, it becomes difficult to lock the locking means and drop the dropping rod. Therefore, the moving side end frame is held in a predetermined posture so as not to swing in an unstable manner. It is necessary to keep.

Therefore, conventionally, a door on the moving side end frame has a longer distance between the wheels in the guide rail direction than other door wheels, and the door frame of the door wheel and the moving side end frame are separated in the guide rail direction. The moving end frame is always held in a predetermined posture by connecting the two hanging tools arranged in the same manner (Patent Document 1).
JP 2001-107668 A

  In the conventional configuration, the door on the moving side end frame is different in length from the other doors, and the two types of doors need to be prepared because the door and the moving side end frame are connected with two suspensions. And there is a drawback that the number of types of doors is increased. In addition, since the upper door of the moving side end frame becomes longer in the guide rail direction, depending on the length of the door, the distance between the doors, etc., the doors may interfere with each other when contracted on the suspension side. Become.

  SUMMARY OF THE INVENTION In view of such conventional problems, the present invention provides a suspended telescopic door that can easily and reliably hold a moving side end frame in a predetermined posture with a simple structure without using a special door. With the goal.

The present invention includes an extendable door body 4 hung by a door wheel 5 that travels along a guide rail 3 in the left-right direction. A plurality of vertical bars 11 connected to both the front and rear sides of the vehicle, and the vertical bars 11 on the moving end side of the plurality of vertical bars 11 provided on the front and rear sides of the suspension end side In a suspended telescopic door provided with an end frame 9 and having the vertical beam 11 in the middle in the left-right direction and the moving side end frame 9 suspended from the door pulley 5 through a suspension 36 , the intermediate vertical beam 11 is connected to the middle door wheel 5 via a single vertical shaft-like lifting tool 36 disposed substantially at the center between the front and rear vertical bars 11, and the moving side end frame 9 is connected to the suspension base. A single vertical axis-like hanging tool arranged at the approximate center between the front and rear vertical bars 11 on the end side 6 connected to the door roller 5 of the mobile terminal side through the, at substantially the center in the front-rear direction of the left-right direction of the hanging original end side of and moving end mobile end than the center of the movable side end frame 9, wherein the latter sling 36 around the position of the movable end frame 9 is guided from the front and rear sides by the guide rail 3 projecting upwardly from and the moving end of the door wheel 5 in cooperation with the movable side end frame 9 A holding member 95 is provided separately from the moving end side door wheel 5, and the holding member 95 includes a guide roller 97 that is rotatably supported by a vertical axis 96 .

The vertical axis 96 may be vertically adjustable with respect to the upper end of the moving side end frame 9. The guide rail 3 has a pair of front and rear wheel travel parts 20 on which the wheels 35 of the respective door wheels 5 travel, and an opening 21 provided between the wheel travel parts 20 and through which each suspension tool 36 passes. The guide roller 97 may be fitted between the openings 21.

  In the present invention, the moving side end frame 9 is provided with a holding member 95 which is guided by the guide rail 3 and holds the moving side end frame 9 in a predetermined posture in cooperation with the door wheel 5 on the moving side end frame 9 side. Therefore, the moving side end frame 9 can be held in a predetermined posture easily and reliably with a simple structure without using a special door wheel 5.

  Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 thru | or FIG. 20 illustrates the 1st Example of the hanging-type expansion-contraction door which concerns on this invention.

  This hanging-type telescopic door is a bilaterally symmetric double-opening type that opens and closes on both the left and right sides, and as shown in FIGS. 1 and 2, a pair of left and right suspension bases erected on both the left and right sides of the ground g side such as an entrance and exit. Between the support column 1, the upper frame 2 installed in the left-right direction between the upper parts of the suspension support columns 1, the guide rail 3 mounted in the left-right direction below the upper frame 2, and the left and right suspension support columns 1 A pair of left and right telescopic door bodies 4 that are arranged to be extendable in the left and right directions along the guide rails 3 and a plurality that run in the left and right directions along the guide rails 3 and support each of the telescopic door bodies 4 in a suspended manner. Each of the telescopic door bodies 4 in a contracted state in which the doors 5 are contracted to the suspension side, and a rotational storage position A (in the rear) in the inside / outside direction (front / rear direction of the telescopic door) around the hinge means 6. 2).

  Each telescopic door body 4 is formed by connecting one or a plurality of, for example, two door face bodies 7 in the left-right direction, and one end side of the telescopic door body 4 is connected to the suspension column 1 by a hinge means 6. 8 and a moving side end frame 9 which is a locking side end frame is provided on the other end side. The suspension side end frame 8 and the movement side end frame 9 are provided on substantially the same plane of the telescopic door body 4 such that the center in the inner and outer direction substantially coincides with the center of the door face body 7.

  Each door surface body 7 is arranged in two vertical pantograph mechanisms 10 that are configured to be extendable in the left-right direction, and are arranged at equal intervals in the left-right direction on both the inner and outer sides of the pantograph mechanism 10 and connected to the pantograph mechanism 10. And a plurality of vertical bars 11. The vertical beam 11 on the opposite end side of each door surface body 7 of the telescopic door body 4 is connected via a belt-like connecting member 12, and the connecting member 12 is engaged with a drop hole 13 on the ground g side at an intermediate position in the extended state. A drop bar 14 is provided for releasably engaging.

  The movable side end frames 9 of the two telescopic door bodies 4 can be brought into contact with each other at a substantially central position in the left-right direction. Each movable side end frame 9 has a handle 15 for opening and closing, and locking means for locking each other in a contact state. In addition, the maximum extension position (solid line state in FIG. 1), the contraction position on the suspension side (the one-dot chain line state in FIG. 2), and the rotary storage position A are detachably engaged with the pit 16 on the ground g side. A dropping rod 17 is provided.

  As shown in FIGS. 4, 5, and 10, the guide rail 3 has a square C-shaped cross section and the like, and has an upper wall portion 18 and a pair of front and rear side wall portions 19 that extend downward from both front and rear ends of the upper wall portion 18. And a pair of front and rear wheel travel parts 20 bent inward from the lower end of each side wall part 19 inward and outward, and an opening 21 provided between both wheel travel parts 20 in the left-right direction (longitudinal direction) In preparation.

  The guide rail 3 includes an intermediate fixed rail 22 in the left-right direction, and a rotating rail 23 disposed on each suspension base column 1 on both ends in the left-right direction of the fixed rail 22. The fixed rail 22 is fixed to a rib-like protrusion 24 at the lower front end of the upper frame 2, and the protrusion 24 is integrally provided over the entire length of the upper frame 2 in the left-right direction. It functions as a stopper. As shown in FIG. 11, the fixed rail 22 is inclined in an oblique direction so that the opposite end edge of the fixed rail 22 faces the suspension column 1 and the rear side is the opposite side.

  As shown in FIGS. 3 to 7, the suspension rail 23 is fixed to the upper end of the suspension end frame 8 in a cantilever manner, and the suspension end frame 8 is attached to the suspension support column 1. The hinge means 6 is pivotally supported around the longitudinal axis. The rotating rail 23 is a hinge means between a connection position B (see FIGS. 2 and 11) connected to the fixed rail 22 in a substantially straight line and a rotating storage position A on the rear side of the suspension column 1. It can rotate around 6 times. The rotation range of the rotary rail 23 is about 90 degrees in this embodiment, but may be determined as appropriate depending on the setting of the rotary storage position A.

  The suspension base column 1 is in the shape of a rectangular tube or the like, and the suspension source side end frame 8 is provided on the side surface of the suspension column 1 on the telescopic door body 4 side through hinge means 6 and rotation stop means 26 protruding on both inside and outside. It is installed. As shown in FIGS. 5, 6, and 8, the hinge means 6 includes a fixed bracket 27 and a movable bracket 28 arranged above and below, and a vertical axis 25 that pivots the end portions thereof rotatably. Brackets 27 and 28 are fixed to opposing surfaces of the suspension column 1 and the suspension side end frame 8. A plurality of hinge means 6 are provided at predetermined intervals in the vertical direction of the suspension end frame 8.

  The rotation stop means 26 is for holding the suspension side end frame 8 on the connection position B side of the rotary rail 23, and the telescopic door body 4 rotates around the longitudinal axis 25 of the hinge means 6 toward the rotation storage position A side. The two-way engagement / disengagement type is established so that it is disengaged when engaged and conversely engaged when rotated to the connection position B side.

  As shown in FIGS. 5, 6, and 8, the rotation stop means 26 is fixed to the suspension side end frame 8 and has a fixing bracket 30 having an engagement recess 30a formed on the upper surface side of the tip portion. The movable bracket 31 is fixed to the suspension side end frame 8 on the upper side of the fixed bracket 30, and the engagement element 32 such as an engagement ball and the spring 33 incorporated in the distal end portion of the movable bracket 31 are included.

  The engaging recess 30 a is provided in the receiving portion 30 b at the distal end portion of the fixed bracket 30. The movable bracket 31 has a cylindrical part 31a at the tip, and an engaging element 32 protruding downward from the cylindrical part 31a and detachably engaged with the engaging concave part 30a, and the engaging element 32 below ( A spring 33 urging in the engagement direction) is detachably incorporated in the vertical direction, and a plug 31b for closing the cylindrical portion 31a is detachably screwed on the upper side thereof. A tapered guide portion or the like may be provided on the outer periphery of the upper end portion of the receiving portion 30b so that the engaging element 32 can be easily engaged with the engaging concave portion 30a.

  As shown in FIG. 10 and FIG. 11, the door 5 is disposed on the left and right sides of the door frame 34 and rolls on the wheel running portion 20 of the guide rail 3 in the left and right direction. And a plurality of wheels 35. The door frame 34 is provided with a hanging tool 36 such as a bolt that protrudes below the guide rail 3 through the opening 21 between the wheel traveling parts 20 at the center. The pair of front and rear vertical bars 11 on the end frame 9 side and the middle pair of metal fittings 37 attached between the upper ends of the pair of intermediate front and rear vertical bars 11 are fixed.

  Therefore, the door cart 5 is arranged at the approximate center of the telescopic door body 4 in the inner and outer direction, and the rotary rail 23 for guiding the door cart 5 is arranged at the approximate center of the telescopic door body 4. It is provided on a plane passing through the center. The telescopic door body 4 is suspended from the guide rail 3 by two door wheels 5 arranged in the middle part and a door wheel 5 on the moving side end frame 9.

  In the vicinity of the connecting portion between the fixed rail 22 and the rotating rail 23, as shown in FIG. 3, a rail holder 38 that receives the rotating rail 23 at the connection position B from below, and the rotating rail 23 cannot be rotated at the connecting position B. Rail lock means 39 for locking to the guide rail 3 is provided on both the inside and outside of the guide rail 3. Further, the rotary rail 23 is provided with a door lock means 40 for locking the door 5 on the moving end side so as not to move with respect to the rotary rail 23, and a door lock operation means 41 corresponding to the door lock means 40 is provided. ing.

  As shown in FIGS. 9 and 10, the rail receiver 38 is integrally provided with a receiving portion 38a that receives the free end side of the rotating rail 23 from the lower side, and a mounting portion 38b that stands up from the front end of the receiving portion 38a. The mounting portion 38b is fixed to the front surface of the fixed rail 22 with screws, rivets or the like in a state of protruding from the fixed rail 22 to the rotating rail 23 side. The rotating rail 23 can be engaged and disengaged from the rear side with respect to the receiving portion 38a of the rail receiving member 38 by the rotation of the hinge means 6 about the longitudinal axis 25. An inclined guide portion 38c for guiding the rotating rail 23 onto the receiving portion 38a is provided at the rear end portion of the rail receiver 38.

  As shown in FIGS. 9 to 11, the rail lock means 39 includes an engaged tool 43 fixed to the rear surface of the fixed rail 22 with a fixing tool such as a screw or rivet, and a screw or rivet or the like to the rear surface of the rotating rail 23. A fixed support tool 44, and an engagement tool 45 pivotally supported on the support tool 44 by a support shaft 46 in the front-rear direction and detachably engaged with the engaged tool 43 from above. And is arranged on the rear side of the guide rail 3.

  The engagement tool 45 has a wedge shape such as a V shape with a lower width and is arranged in the left-right direction substantially parallel to the guide rail 3, and the suspension base end is suspended by the support shaft 46. It is pivotally attached to the former side end part so that it can move up and down. The engaged tool 43 and the support tool 44 have V-shaped receiving grooves 43b and 44b with which the engagement tool 45 is detachably engaged from the upper side. An engaging portion 44 a such as an engaging hole penetrating in the vertical direction below the engaging tool 45 is formed at an intermediate portion such as a substantially center with the engaged tool 43.

  As shown in FIGS. 9 to 11, the door lock means 40 has a holding body 48 fixed to the rotating rail 23 in the vicinity of the upper side of the suspension base side of the support tool 44, and is slidable in the front-rear direction on the holding body 48. A lock pin 49 that is inserted through and is engaged with the door pulley 5 so as to be freely disengageable from the rear side, and a spring 50 that urges the lock pin 49 in the engaging direction are provided. The holding body 48 and the lock pin 49 are disposed between the left and right wheels 35 in the vicinity of the upper side of the door frame 34. The front end of the lock pin 49 passes through the side wall portion 19 on the rear side of the rotary rail 23 and protrudes and retracts between the left and right wheels 35, and the rear end protrudes rearward from the holding body 48. The spring 50 has a coil shape and is fitted onto the lock pin 49 in the holding body 48.

  As shown in FIGS. 9 to 11, the door lock operation means 41 locks the door lock means 40 when the rotation rail 23 is rotated from the connection position B to the rotation storage position A side, and connects the rotation rail 23. It is for unlocking the door lock means 40 when it is returned to the position B. The disk-shaped, other pressed member 51 fixed to the protruding end of the lock pin 49 and the upper side of the rotating rail 23 And a pressing member 52 which is fixed to the lower surface of the upper frame 2 and protrudes rearward from the rotating rail 23.

  The pressing member 52 is formed of a projection such as a plate material, and corresponds to the upper portion of the pressed member 51 on the upper side of the holding body 48. When the rotating rail 23 is at the connection position B, the lock pin 49 is inserted via the pressed member 51. Press to unlock position. An inclined guide portion 52 a that guides the rotating rail 23 to the lower side of the pressing member 52 is provided at the rear end of the pressing member 52.

  As shown in FIGS. 4 to 6, the suspension side end frame 8 has a planar U shape that is open on the opposite side to the suspension base column 1, and an end wall portion 8 a corresponding to the suspension column 1 and the end wall. And a pair of front and rear side wall portions 8b bent toward the opposite side from the suspension base column 1 from both front and rear ends of the portion 8a, and a pair of front and rear vertical bars 11 on the suspension source side are integrally formed on the open end side of each side wall portion 8b. I have. The suspension side end frame 8 is reinforced by a planar U-shaped reinforcing plate 53 in which portions corresponding to the hinge means 6 and the rotation stopping means 26 such as the upper end portion are bent along the inner surface.

  As shown in FIGS. 5 and 6, the rotating rail 23 is disposed in a fitting manner at the approximate center of the upper end portion of the suspension side end frame 8 with a predetermined interval between the pair of front and rear side wall portions 8 b. The suspension side is fixed to the upper end of the suspension side end frame 8 in a cantilevered manner. The connecting portion between the suspension side end frame 8 and the rotating rail 23 includes a main reinforcing member 54 disposed at the center of the rotating rail 23 and a pair of front and rear auxiliary reinforcing members 55 disposed on both front and rear sides of the rotating rail 23. And is reinforced by.

  As shown in FIGS. 4 to 6, the main reinforcing member 54 has a substantially right triangle shape or L shape, and has a main body portion 54 a having a front and rear thickness that fits into the opening 21 of the guide rail 3. A rail mounting portion 54b corresponding to the rotating rail 23 is provided on the outside, and a frame mounting portion 54c corresponding to the suspension end frame 8 is provided on the outside in a substantially perpendicular direction. The main body portion 54a is bent in a U shape so as to connect the plate members on the frame attachment portion 54c side, and a rail attachment portion 54b that bends outward is provided on the upper side.

  The main reinforcing member 54 has the main body 54 a fitted in the opening 21 of the rotating rail 23, and each rail mounting portion 54 b has a plurality of (three) screws 56 in the left-right direction. The frame mounting portion 54c is fixed to the end wall portion 8a of the suspension side end frame 8 via the reinforcing plate 53 by a plurality of (two) screws 57a and 57b in the vertical direction.

  When the rotating rail 23 is rotated from the connection position B to the rotating storage position A side between the frame attaching portion 54c of the main reinforcing member 54 and the suspension side end frame 8, that is, the rotating rail 23 is the rail support 38. Angle adjustment that allows the mounting angle of the rotating rail 23 to the suspension side end frame 8 to be adjusted upward so that it can be maintained in a substantially horizontal state even when the rotating rail 23 falls due to the weight of the telescopic door body 4 when it is detached from Means 58 are provided.

  The angle adjusting means 58 has an adjusting screw 58a that is screwed to the lower end portion of the frame attaching portion 54c so as to be able to advance and retract from the opposite side of the suspension column 1. The tip of the adjustment screw 58a is in contact with the end wall portion 8a of the suspension side end frame 8 via the reinforcing plate 53, and advances and retreats when rotated by a tool such as a driver, and is suspended from the frame mounting portion 54c. A gap on the lower end side with the end wall portion 8a of the original side end frame 8 is adjusted. The two screws 57a and 57b on the upper side of the adjustment screw 58a pass through the end wall 8a of the suspension side end frame 8 and the reinforcing plate 53 from the suspension column 1 side opposite to the adjustment screw 58a. Screwed into the attachment portion 54c.

  Each sub-reinforcing tool 55 is U-shaped in a side view having an outer upright portion 55 a and an inner upright portion 55 b, and the side wall portion 19 and the side wall portions 8 b of the suspension side end frame 8 on both the front and rear sides of the rotating rail 23. Are fixed to each by screws 60, bolts 61, and the like. The screw 60 is screwed into the screw hole 60c of the outer standing portion 55a of the auxiliary reinforcing member 55 through the insertion hole 60a of the side wall 8b of the suspension end frame 8 and the insertion hole 60b of the side wall 53a of the reinforcing plate 53. The bolt 61 passes through the insertion hole 61 a of the inner standing portion 55 b of the auxiliary reinforcing member 55 and the insertion hole 61 b of the side wall portion 19 of the rotating rail 23 and is screwed into the screw hole 61 c of the abutting plate 62 inside the side wall portion 19 of the rotating rail 23. Match. The insertion holes 60 a, 60 b, 61 a, 61 b and the like are sized so as to have an appropriate play as compared with the diameters of the screw 60 and the bolt 61 so as not to hinder the angle adjustment of the rotating rail 23. The insertion holes 60a, 60b, 61a, 61b may be formed as arc-shaped long holes centered on the uppermost screw 57a, or may be long holes that are straight in an oblique direction.

  As shown in FIGS. 12 to 15, the moving side end frame 9 has a U-shaped connecting portion 9 a in which a pair of front and rear vertical bars 11 are formed on the open side, and a rectangular tube shape protruding from the central portion of the connecting portion 9 a. And the abutting frame portion 9b. The rail lock means 39 is locked / unlocked to the contact frame portion 9b of the moving side end frame 9, and the rail lock operation means 63 is engaged with the rotating rail 23 when the rail lock means 39 is in the unlocked state. And a drop bar 17 for fixing the moving side end frame 9 at a predetermined position.

  As shown in FIGS. 12 and 14, the rail lock operating means 63 includes a grooved holding member 65 mounted on the contact frame portion 9 b of the moving side end frame 9 on the upper side of the handle 15 in the vertical direction, and the holding member. An operation rod 66 slidably held in the vertical direction with respect to the telescopic door body 4 by 65, an operation knob 68 provided at the lower end of the operation rod 66 via an operation shaft 67, and an operation rod 66 Holding means 69 for holding the lens at the raised position and the lowered position, and is provided on the rear side of the moving side end frame 9.

  The operation rod 66 can be engaged and disengaged from the lower side to the engagement portion 44a of the support tool 44 by operating the operation knob 68 in the vertical direction, and the upper engagement tool 45 is pushed from the lower side to engage in the vertical direction. Detachable. The operation shaft 67 is slidably inserted in the operation rod 66 in the front-rear direction, and an operation knob 68 is fixed to the rear end side.

  The holding means 69 is engaged with the two upper and lower engaging portions 65a and 65b formed on the groove bottom side of the holding member 65 and the tip of the operation shaft 67 and is detachably engaged with the engaging portions 65a and 65b. An engaging projection 67a, and a coiled spring 70 that is fitted onto the operation shaft 67 between the operating rod 66 and the engaging projection 67a and biases the engaging projection 67a in the engaging direction. ing. The holding means 69 has a raised position (a two-dot chain line position in FIG. 9) where the engaging tool 45 is disengaged from the engaged tool 43 and the operating rod 66 is engaged with the engaging portion 44a of the support tool 44. The operating rod 66 is selected to a lowered position (solid line position in FIG. 9) where the engaging tool 45 engages with the engaged tool 43 and the operating rod 66 is released downward from the engaging portion 44a of the support tool 44. Can be retained.

  Of the two upper and lower engaging portions 65a and 65b, the operating rod 66 passes through the engaging portion 44a of the support tool 44 in the upper engaging portion 65a, and the engaging tool 45 is removed (see FIG. 9). The engagement protrusion 67a is engaged when pushed up to the two-dot chain line position, and the disengagement position where the operating rod 66 is disengaged downward from the engagement portion 44a of the support tool 44 to the lower engagement portion 65b. The engagement protrusion 67a is engaged when the operation rod 66 is lowered to hold the operation rod 66 at each position.

  As shown in FIGS. 13 and 15, the dropping bar 17 is disposed vertically in the contact frame portion 9 b of the moving side end frame 9 below the handle 15, and includes an intermediate guide member 72 and a lower end guide fitting 73. And slidably supported in the vertical direction. An operation knob 75 is provided on the upper end of the drop bar 17 on both the front and rear sides of the contact frame portion 9b via the operation shaft 74, and the operation shaft 74 or the operation knob 75 is formed on the contact frame portion 9b. It can be moved up and down within the elongated hole 76 in the vertical direction.

  The drop rod 17 is formed with an engaging portion 17a and a flat portion 17b on the upper side thereof, and the guide member 72 is detachably engaged with the engagement portion 17a to bring the drop rod 17 into the raised position. A leaf spring 77 for holding is provided. The guide member 72 is fixed to the inside of the contact frame portion 9b via the mounting base 72a.

  The leaf spring 77 has an elastic protrusion 77a at the middle in the vertical direction, and is disposed in the vertical direction in the guide member 72, and its upper and lower ends are fixed to the guide member 72 with screws 78 or the like. The elastic protrusion 77a engages with the engaging portion 17a when the dropping rod 17 is raised to the raised position, and holds the dropping rod 17 at the raised position. The elastic protrusion 77a slidably contacts the flat portion 17b when the dropping rod 17 is dropped downward.

  As shown in FIGS. 16 to 18, the front and rear connecting members 12 are fixed to a plurality of connecting fittings 80 in the vertical direction interposed therebetween by screws or the like. The intermediate drop bar 14 is held in a substantially central position between the front and rear connecting members 12 by a plurality of (two) connecting fittings 80 on the lower side so as to be movable up and down. An operation knob 82 is provided on the outer end of each connecting member 12 via an operation shaft 81 in the front-rear direction at the upper end portion of the dropping rod 14, and the operation shaft 81 is a vertically elongated slot formed in the connecting member 12. It can move up and down within 83.

  Each connecting member 12 is provided with a restricting portion 12a that abuts the adjacent vertical beam 11 from the inner side in the left-right direction and restricts the interval. The restricting portion 12a has an operation shaft 81 as shown in FIGS. Plate springs 84 are provided opposite to each other so as to engage and disengage from the lower side and hold the drop bar 14 in the raised position. The leaf spring 84 has an elastic protrusion 84a at an intermediate portion in the vertical direction, and its upper and lower ends are fixed to the restricting portion 12a by rivets 85 or the like. The elastic protrusion 84a engages the operating shaft 81 from below when the drop bar 14 is raised to the raised position, and holds the drop bar 14 in the raised position.

  In the hanging type extendable door having such a configuration, if the handle 15 of the moving side end frame 9 of each extendable door body 4 is gripped and operated in the left-right direction, a plurality of door wheels 5 travel along the guide rail 3. Then, the telescopic door body 4 in a suspended state extends and contracts in the left-right direction via the door wheel 5. For this reason, an entrance / exit etc. can be opened and closed easily.

  When closing the doorway or the like, the moving side end frames 9 of the telescopic door bodies 4 are brought into contact with each other, and then both the moving side end frames 9 are locked by the locking means. Further, if necessary, each dropping bar 17 is dropped into the dropping hole 16 on the ground g side to lock each telescopic door body 4. When opening the doorway, etc., each retractable door body 4 is contracted by moving it toward the suspension column 1 as shown by a one-dot chain line in FIG. 2, or contracted as shown by a two-dot chain line in FIG. The telescopic door body 4 in the state is rotated around the vertical axis 25 of the hinge means 6 to the rotary storage position A and stored rearward.

  Normally, the rotating rail 23 is at a connection position B where it is connected to the fixed rail 22 as shown in FIG. 11, and is locked by the rail lock means 39 at the connection position B. That is, the engaging tool 45 of the rail lock means 39 is engaged with the engaged tool 43 from the upper side, and the rotating rail 23 is fixed so as not to rotate around the longitudinal axis 25 in an unstable manner. Particularly, since the engaging tool 45 is wedge-shaped and this engaging tool 45 engages with the V-shaped receiving groove 43b of the engaged tool 43, the back-and-forth movement of the rotating rail 23 can be prevented. Therefore, each door 5 can travel freely between the fixed rail 22 and the rotating rail 23, and does not interfere with the opening and closing of the telescopic door body 4.

  Since the rotating rail 23 is fixed to the upper end of the suspension side end frame 8 in a cantilevered manner, there is no vertical frame member or the like on the free end side of the rotating rail 23, and even when viewed from the front, The appearance of is very good. Further, since the free end side of the rotating rail 23 is on the rail support 38, the rotating rail 23 is cantilevered with respect to the suspension-side end frame 8 as will be described later. It is possible to prevent the free end side from drooping.

  Further, when the rotating rail 23 is at the connection position B, the pressed pin 51 of the door lock operating means 41 is in contact with the pressing member 52 as shown in FIG. It is pushed to the rear side and is in the unlock position. For this reason, the door cart 5 can travel on the rotating rail 23 regardless of the door lock means 40.

  When rotating and retracting the telescopic door body 4, first, the telescopic door body 4 is contracted to the minimum state on the suspension base column 1 side as shown in FIG. Then, all the three door wheels 5 of the telescopic door body 4 move to the rotating rail 23 side, and the telescopic door body 4 is suspended from the rotating rail 23 via the door wheel 5.

  Then, the operation knob 68 of the rail lock operation means 63 is then operated upward, and the operation rod 66 is raised from the lowered position (solid line position in FIG. 9) to the raised position (two-dot chain line position in FIG. 9). . At this time, the upper end of the operating rod 66 is engaged with the engaging portion 44a of the support tool 44 as shown by a two-dot chain line in FIG. 9, and the moving side end frame 9 of the telescopic door body 4 is connected to the operating rod 66 and the support tool. It is locked to the rotating rail 23 via 44 so as not to move.

  For this reason, after the operating rod 66 is engaged with the engaging portion 44a, even if an external force in the extending direction is applied to the moving side end frame 9 due to an erroneous operation or the like, the moving side end frame 9 moves and the door pulley 5 moves from the rotating rail 23. There are no problems such as separation or unexpected expansion of the telescopic door body 4 in a contracted state. Further, since the moving side end frame 9 is locked to the rotating rail 23 through the operation rod 66 and the support 44 so as not to move, the rotating side rail 23 is cantilevered with respect to the suspension side end frame 8. Instead, the rotating rail 23 and the moving side end frame 9 of the telescopic door body 4 can be rotated integrally.

  When the operating rod 66 is raised to the position indicated by the two-dot chain line in FIG. 9, the engaging tool 45 of the rail lock means 39 is pushed up at the upper end thereof, so that the engaging tool 45 moves around the support shaft 46 as shown by the two-dot chain line in FIG. Rotate to rise and disengage from the engaged tool 43. As a result, the rail locking means 39 is unlocked, and the locking at the connection position B of the rotating rail 23 by the engaging tool 45 can be released. The rotating rail 23 moves to the rotating storage position A around the longitudinal axis 25 of the hinge means 6. It can be rotated. However, since the rotation stop means 26 holds the suspension side end frame 8 of the telescopic door body 4 at the connection position B, the rotating rail 23 does not rotate unstable.

  When the operating rod 66 is raised, the engaging projection 67a of the operating shaft 67 is engaged with the upper engaging portion 65a, so that the operating rod 66 can be held at the raised position by the holding means 69. Therefore, when the operation rod 66 is raised and the rail lock means 39 is unlocked, the holding tool 69 can maintain the engaging tool 45 in the unlocked state via the operation rod 66, and the operation rod 66 is lowered due to an erroneous operation or the like. Unless this is done, the engagement tool 45 will not be lowered.

  After the unlocking operation of the rail locking means 39, if the moving side end frame 9 side of the telescopic door body 4 is operated to the rotational storage position A side in the direction of the arrow a in FIG. 2 and FIG. 19, it rotates as shown in FIG. The free end side of the rail 23 is disengaged from the rail receiver 38, and the door lock locking means 41 locks the door lock locking means 40 as the rotating rail 23 rotates. That is, when the rotating rail 23 rotates backward in the direction of arrow a as shown in FIG. 19, the pressed member 51 of the door lock operating means 41 moves away from the pressing member 52. As shown in FIG. 19, the lock pin 49 is pushed by the spring 50 and moves forward toward the door 5 on the moving end side and is inserted between the pair of wheels 35.

  When the rotating rail 23 is rotated rearward in this way, the door lock 5 on the moving end side can be locked substantially immovably with respect to the rotating rail 23 by the door lock locking means 40 immediately. Accordingly, in the state where the rotating rail 23 is rotated from the connection position B to the rear side, even if the operating rod 66 is lowered by a mistaken operation and is disengaged from the engaging portion 44 a of the support tool 44, Since the door 5 that suspends the frame 9 is immovable, there is no possibility that the door 5 is detached from the rotating rail 23 and the telescopic door 4 is extended, and the safety when the telescopic door 4 is rotated is extremely high. improves.

  Further, when the rotating rail 23 rotates rearward, the engaging element 32 of the rotation stopping means 26 is pushed up by the receiving part 30b and is lifted and detached from the engaging recessed part 30a. For this reason, although the anti-rotation means 26 is provided, it is possible to immediately shift to the rotation operation of the rotary rail 23 after the unlocking operation of the rail lock means 39, and the operability is improved.

  Thereafter, the telescopic door body 4 is rotated about the longitudinal axis 25 of the hinge means 6 integrally with the rotating rail 23 and the suspension side end frame 8 while the contracted telescopic door body 4 is suspended by the rotating rail 23. Rotate to storage position A. At this time, since the operation rod 66 provided on the moving side end frame 9 of the telescopic door body 4 penetrates the engaging portion 44 a of the support tool 44, the moving side end frame 9 is simply suspended via the door wheel 5. Compared to the case, the swinging of the telescopic door body 4 on the lower side of the rotary rail 23 can be reduced, and it can be smoothly rotated to the rotary storage position A. And if it rotates to the rotation storage position A, the telescopic door body 4 will be locked with the drop stick 17 as needed.

  When the telescopic door body 4 is returned from the rotational storage position A, it is rotated around the hinge means 6 in the direction indicated by the arrow a in FIG. At this time, if the rotating rail 23 approaches the connection position B, the free end side rides on the rail support 38. For this reason, at the connection position B, the rotating rail 23 can be supported by the suspension side end frame 8 and the rail support 38 in a double-sided manner. Therefore, the rotating rail 23 can be stably supported in a state where it is connected to the fixed rail 22 in spite of being able to rotate around the longitudinal axis 25 of the hinge means 6 integrally with the suspension side end frame 8, and the telescopic door body. It is possible to prevent drooping on the free end side due to the weight of 4 or the like.

  When the rotating rail 23 approaches the connection position B, the pressed member 51 of the door lock operating means 41 comes into contact with the pressing member 52 on the upper frame 2 side, and the pressed member 51 resists the spring 50 by the pressing member 52. Therefore, the lock pin 49 of the door lock means 40 moves rearward along with the rotation of the rotary rail 23, and is released rearward from between the pair of wheels 35 of the door wheel 5. Therefore, the door lock locking means 40 can be unlocked by the door lock locking operation means 41 simply by returning the rotating rail 23 to the connection position B, and the door lock locking means 40 is unlocked. Therefore, each door cart 5 is in a state where it can travel along the rotating rail 23.

  When the rotating rail 23 reaches the connection position B, the rotating rail 23 comes into contact with the protruding portion 24 of the upper frame 2 and stops in a state where it is connected to the fixed rail 22. Further, the engagement element 32 of the rotation stop means 26 rises against the spring 33 guided to the upper end of the receiving portion 30b, gets over the outer periphery of the receiving portion 30b, engages with the engaging recess 30a, and the telescopic door body 4, The rotating rail 23 is held at the connection position B.

  Thereafter, the rail lock operating means 63 is unlocked, and the operating rod 66 is pulled down to the lowered position. As a result, the engaging tool 45 of the rail lock means 39 rotates downward around the support shaft 46 and engages with the engaged tool 43, so that the rotating rail 23 is locked again at the connection position B by the rail lock means 39. Thus, the door pulley 5 can freely travel between the rotating rail 23 and the fixed rail 22.

  Further, after the engaging tool 45 is engaged with the engaged tool 43, the operating rod 66 is detached from the engaging portion 44 a of the support tool 44, and the rotating rail 23 and the moving side end frame 9 are locked by the operating rod 66. Can be released, and the movable side end frame 9 can move freely in the left-right direction. Therefore, the telescopic door body 4 can be freely expanded and contracted along the guide rail 3 by returning the rotating rail 23 to the connection position B and unlocking the rail lock operating means 63.

  In this embodiment, the suspension side end frame 8 on one end side of the telescopic door body 4 is pivotally attached to the suspension base column 1 so as to be rotatable around the hinge means 6, and is attached to the upper end of the suspension side end frame 8. Since a part of the rotating rail 23 of the guide rail 3 is attached in a cantilevered manner, regardless of the contracted state of the telescopic door body 4, the telescopic door body 4 including the suspension side end frame 8 and the rotating rail 23 are provided. Can be arranged on substantially the same plane. For this reason, since the dimension of the whole suspension type expansion / contraction door can be made small, it can be installed in a small space and the thickness of the expansion / contraction door body 4 at the time of rotary storage can be reduced.

  Moreover, since the suspension side of the rotating rail 23 is attached to the upper end of the suspension side end frame 8 via the reinforcing members 54 and 55, the telescopic door body 4 and the rotating rail 23 are cantilevered on substantially the same plane. In spite of the shape, the rotary rail 23 can be firmly fixed to the suspension end frame 8. In particular, between the main reinforcing member 54 and the suspension side end frame 8, there is an angle adjustment means 58 for adjusting the mounting angle of the rotary rail 23 with respect to the suspension side end frame 8. Therefore, when the telescopic door body 4 is supported by the rotating rail 23 alone, the rotating rail 23 can be maintained so as not to hang down below the horizontal state due to its weight.

  When adjusting the mounting angle by the angle adjusting means 58, first, as shown in FIG. 20, the uppermost screw 57a of the frame mounting portion 54c of the main reinforcing member 54 is tightened, and the lower screw 57b is loosened, and in this state The adjustment screw 58a is rotated with a tool such as a screwdriver. Then, since the tip of the adjustment screw 58a comes into contact with the end wall 8a of the suspension side end frame 8 with respect to the reinforcing plate 53, as shown in FIG. 20, the main reinforcing member 54 with the tightening portion of the uppermost screw 57a as a fulcrum. And the angle at which the rotating rail 23 is attached to the suspension end frame 8 can be adjusted.

  Then, in consideration of the weight of the telescopic door body 4, the rigidity of the rotating rail 23, etc., the rotating rail 23 is detached from the rail support 38, and the weight on the telescopic door body 4 side in the contracted state is supported by the rotating rail 23. Then, after the rotation rail 23 is adjusted to an angle at which it is substantially horizontal, the lower screw 57b is tightened and fixed. In this way, the structure of the angle adjusting means 58 can be simplified, and the angle of the rotating rail 23 with respect to the suspension side end frame 8 can be easily adjusted, and after the telescopic door body 4 is suspended from the guide rail 3. Adjustment is also possible.

  When locking the telescopic door body 4 to the ground g side, the dropping rods 14 and 17 are operated downward from the raised position and dropped into the dropping holes 13 and 16. Each drop bar 14 and 17 is elastically maintained at the raised position by the leaf springs 77 and 84, so that the drop bar 14 and 17 can be easily and reliably held at the raised position by a simple holding structure.

  21 to 23 illustrate a second embodiment of the present invention. As shown in FIGS. 21 to 23, this hanging type extendable door includes a guide rail 3 on the upper side, a lower guide rail 90 such as a groove on the ground g side, and the lower end of the extendable door body 4. A guided portion 91 that is guided along the lower guide rail 90 is provided. The guided portion 91 is constituted by a rotating roller rotating around the longitudinal axis or a protrusion or the like, and is provided on the moving side end frame 9 of the telescopic door body 4 and the vertical beam 11 at the intermediate portion thereof.

  A notch portion for separating the guided portion 91 from the lower guide rail 90 to the rear so that the contracted telescopic door body 4 can rotate to the rotary storage position A on the suspension end side of the lower guide rail 90. 92 is formed in the rear wall 90a. Other configurations are substantially the same as those of the first embodiment. In the case of such a telescopic door, it can be implemented in the same manner as described above.

  24-26 illustrate a third embodiment of the present invention. As shown in FIGS. 24 to 26, the suspension type extendable door is guided to the moving side end frame 9 by the guide rail 3 and cooperates with the door 5 on the moving side end frame 9 side. Is provided with a holding member 95 that holds it in a predetermined posture such as a locking posture along the guide rail 3. In the moving side end frame 9, a door 5 is disposed on the suspension base side and a holding member 95 is disposed on the moving end side with a predetermined interval in the longitudinal direction of the guide rail 3. The holding member 95 is configured by a guide roller 97 that fits into the opening 21 between the wheel traveling portions 20 on the front and rear sides of the guide rail 3 and is rotatable around the vertical axis 96. The vertical axis 96 is constituted by a bolt or the like, and is fixed to the upper end of the moving side end frame 9 so as to be vertically adjustable.

  Thus, since the holding member 95 cooperates with the door pulley 5 to hold the moving side end frame 9 in a predetermined posture such as a locking posture, a plurality of types of door wheels 5 are prepared for the purpose of holding the posture of the moving side end frame 9. This is unnecessary and can be carried out easily and inexpensively. In addition, since the holding member 95 is constituted by the guide roller 97 that fits into the opening 21 of the guide rail 3 and rotates around the longitudinal axis 96, the structure can be very simple.

  FIG. 27 illustrates a fourth embodiment of the present invention. As shown in FIG. 27, the rotation stop means 26 is a male screw body in which a male screw body 98 having an engaging recess 30a is screwed to a fixed bracket 30, and an engaging element 32 and a spring 33 are built in the movable bracket 31. 99 is screwed together. Female screw holes 98a and 99a are formed at the front ends of the brackets 30 and 31, and male screw bodies 98 and 99 are screwed into the female screw holes 98a and 99a in a detachable manner. The engaging element 32 is not separated from the male screw body 99.

  The male screw body 98 has a mortar-shaped engaging recess 30a at the upper end and a tapered guide portion 98b on the outer periphery thereof, and an operating portion 98c for engaging a tool such as a screwdriver at the lower end. Yes. The male screw body 99 is provided with an operation portion 99c for engaging a tool such as a screwdriver on the upper end side thereof. The rotation stop means 26 may be configured in this way.

  28 to 31 illustrate a fifth embodiment of the present invention. The engagement tool 45 of the rail lock means 39 includes a vertical flat surface 45c formed substantially parallel to both front and rear sides thereof, and a downward arcuate guided surface formed below the flat surfaces 45c. It has a U-shaped cross section having 45d. The receiving groove 43b of the engaged tool 43 has an arcuate shape that receives a vertical flat surface 43c that sandwiches the flat surface 45c side of the engaging tool 45 from both front and rear sides and a guided surface 45d of the engaging tool 45 from below. It has a shape having a receiving surface 43d. In the support tool 44, the support part 44d of the support shaft 46 for the engagement tool 45 and the intermediate part in the left-right direction of the engagement tool 45 are regulated from the rear side at the left and right ends of the rear side of the bottom wall part 44c. A restricting portion 44e is provided. The restricting portion 44e, the bottom wall portion 44c and the front rising portion of the support tool 44 have substantially the same shape as the receiving groove 43b of the engaged tool 43 corresponding to the shape of the engaging tool 45. .

  Therefore, when the engaging tool 45 is engaged with the engaged tool 43, the guided surface 45d can be guided into the receiving groove 43b by the front and rear flat surfaces 43c. In the engaged state in which the engaging tool 45 is engaged with the engaged tool 43, the guided surface 45d of the engaging tool 45 and the receiving surface 43d of the engaged tool 43 corresponding to each other in shape substantially correspond to each other. Thus, the back and forth of the rotating rail 23 can be prevented. Moreover, the engaging tool 45 and the engaged tool 43 have flat surfaces 45c and 43c above the guided surface 45d and the receiving surface 43d, and the flat surfaces 45c and 43c oppose each other in the front-rear direction. Even when an external force in the front-rear direction is applied to the rotating rail 23 side, no component force is generated to rotate the engaging tool 45 around the support shaft 46 in the unlocking direction. 23 can be reliably maintained in the locked state.

  FIG. 32 illustrates a sixth embodiment of the present invention. The rotation stop means 26 may be configured as shown in FIGS. 32 (A) to (E). That is, the engagement element 32 includes a downward hemisphere 32a as shown in (A), a cylindrical body 32c having a hemispherical part 32b at the lower end as shown in (B), and a conical part 32d at the lower end as shown in (C). A cylinder 32c having a triangular pyramid, a cylinder 32c having a truncated cone 32e at the lower end as shown in (D), a downward cone, a cone 32f such as a triangular pyramid as shown in (E), etc. You may comprise by. The engaging recess 30a and the guide portion 98b having a tapered shape on the outer periphery thereof may be formed directly on the fixing bracket 30 or may be formed on the male screw body 98.

  As mentioned above, although each Example of this invention was explained in full detail, this invention is not limited to these Examples, It can implement in another various aspect. For example, the telescopic door body 4 is an example in which a large number of vertical bars 11 are attached to the pantograph mechanism 10, but may be one without the vertical bars 11, and a plurality of door bodies may be zigzag-shaped by the hinge means 6. It may be configured to be foldable so as to be extendable and contractible.

  The guide rail 3 and the door wheel 5 may be of other types as long as the door wheel 5 can travel along the guide rail 3, for example, by using the door wheel 5 provided with wheels 35 on one side of the door wheel frame 34. . There may be one wheel 35 of the door wheel 5 on one side or both sides of the door wheel frame 34, or three or more wheels.

  The engaged tool 43 of the rail lock means 39 may be provided on the fixed side of the upper frame 2 or the like in addition to the fixed rail 22. In relation to the rail lock operating means 63, the rail lock means 39 is preferably engaged with the engaging tool 45 so as to be freely disengaged from the upper side with respect to the engaged tool 43. Other engagement / disengagement structures may be employed such that the engagement tool 45 is configured to engage / disengage in the longitudinal direction from the rotating rail 23 side. In this case, the engagement tool 45 can be fully engaged / disengaged by adopting a cam mechanism for the rail lock operation means 63 or the like. As the holding means 69 for the operation rod 66, leaf springs 77 and 84 may be used in the same manner as the dropping rods 14 and 17.

  The door lock means 40 is configured to move the lock pin 49 between the pair of wheels 35, but an engaging portion is provided on the door wheel frame 34, the wheel 35, etc., and the lock pin 49 is engaged with the engaging portion. In short, what is necessary is just to be able to lock the door pulley 5 with respect to the rotating rail 23. Further, the door lock means 40 does not need to fix the door 5 almost completely with respect to the rotating rail 23. The lock pin 49 is engaged with the door 5 on the moving end side, that is, on the fixed rail 22 side. Thus, it is sufficient to prevent the door pulley 5 from being detached from the rotating rail 23.

  The door lock operating means 41 may have another configuration. For example, the pressed member 51 is provided so as to protrude forward from the lock pin 49 toward the upper frame 2 or the fixed rail 22, and the pressed member 51 is operated on the rear surface of the upper frame 2 or the fixed rail 22. Good. In this case, the rear surface of the upper frame 2 or the fixed rail 22 functions as the pressing member 52. The base of the lock pin 49 may be pivotally supported by a shaft, and the lock pin 49 may be engaged with and disengaged from the door pulley 5 by a rotational motion. In this case, the lock pin 49 may be biased by a helical spring that is fitted on the shaft, or may be biased by a tension spring.

  The main reinforcing member 54 may be attached to the lower surface of the rail attachment portion 54b. In that case, the width of the rail attachment portion 54b of the main reinforcing member 54 may be adjusted to the rotating rail 23, and the width of the frame attachment portion 54c may be adjusted to the end wall portion 8a of the suspension side end frame 8. The angle adjusting means 58 may be provided between the frame attaching portion 54c of the main reinforcing member 54 and the end wall portion 8a of the suspension side end frame 8, and between the rail attaching portion 54b and the rotating rail 23, respectively. Either one may be sufficient.

  The anti-rotation means 26 is sufficient if it is of a bidirectional engagement / disengagement type that engages / disengages from both directions when the hinge means 6 of the telescopic door body 4 rotates about the longitudinal axis 25 around the longitudinal axis 25. Also, when the rotation stop means 26 having the engagement recess 30a and the engagement element 32 is adopted, the engagement recess 30a is provided on the lower surface of the movable bracket 31 and the engagement element 32 is fixed to the fixed bracket 30 contrary to the embodiment. May be provided upward.

  As long as the holding member 95 is guided by the guide rail 3 and holds the moving-side end frame 9 in a predetermined posture in cooperation with the moving end-side door cart 5, for example, the guide rail 3. It may be a simple protrusion or the like guided slidably by. The angle adjusting means 58 may be provided between the main reinforcing member 54 and the rotating rail 23, or provided between the main reinforcing member 54 and the suspension side end frame 8 and between the main reinforcing member 54 and the rotating rail 23. May be.

  This hanging type extendable door is illustrated as a double-open type in which a pair of left and right extendable doors 4 expands and contracts on both the left and right sides. However, only one of the extendable doors 4 is provided, and its movable side end frame 9 ( A single-opening type in which the door end side frame is in contact with the door support post and locked. In addition to gates, it can also be applied to various hanging-type telescopic doors used for partitions, shutters, etc.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic elevation view of a suspended telescopic door showing a first embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan view of a suspended telescopic door showing a first embodiment of the present invention. It is an elevational view in a contracted state showing the first embodiment of the present invention. It is a disassembled perspective view of the rotating rail attachment part which shows the 1st Example of this invention. It is side surface sectional drawing of the rotation rail attachment part which shows the 1st Example of this invention. It is a plane sectional view of the rotation rail attachment part which shows the 1st example of the present invention. It is front sectional drawing of the rotation rail attachment part which shows the 1st Example of this invention. It is side surface sectional drawing of the rotation stopping means etc. which show the 1st Example of this invention. It is a partially cutaway front view of the principal part containing the rail locking means etc. which show the 1st Example of this invention. It is a partially cutaway side view of the main part including the rail lock means, the door lock means and the like showing the first embodiment of the present invention. It is a plane sectional view of an important section including a rail lock means, a door lock means, etc. which show the 1st example of the present invention. It is a partially cutaway side view of the main part including the rail lock operating means and the like showing the first embodiment of the present invention. It is a partially cutaway side view including a drop bar and the like showing the first embodiment of the present invention. It is a top sectional view of the important section containing the rail lock operation means etc. which show the 1st example of the present invention. 1 is a cross-sectional plan view including a drop bar and the like showing a first embodiment of the present invention. It is front sectional drawing containing the connection member, dropping rod, etc. which show the 1st Example of this invention. 1 is a cross-sectional plan view including a connecting member, a dropping rod and the like showing a first embodiment of the present invention. It is side surface sectional drawing containing the connection member, dropping rod, etc. which show the 1st Example of this invention. It is a top view in the middle of rotation storage which shows the 1st example of the present invention. It is explanatory drawing at the time of angle adjustment of the rotation rail which shows the 1st Example of this invention. It is a general | schematic elevational view of the suspension type expansion-contraction door which shows the 2nd Example of this invention. It is sectional drawing of the lower part of the suspension type expansion-contraction door which shows the 2nd Example of this invention. It is sectional drawing of the lower part of the suspension type expansion-contraction door which shows the 2nd Example of this invention. It is a partially notched front view of the principal part containing the door pulley and the holding member which show the 3rd Example of this invention. It is side surface sectional drawing of the principal part containing the door pulley and holding member which show the 3rd Example of this invention. It is a plane sectional view of an important section including a door pulley and a holding member which show the 3rd example of the present invention. It is sectional drawing of the rotation stop means which shows the 4th Example of this invention. It is a partially cutaway front view of the principal part containing the rail locking means etc. which show the 5th Example of this invention. It is a partially cutaway side view of the main part including a rail lock means, a door lock means and the like showing a fifth embodiment of the present invention. It is side surface sectional drawing of the principal part containing the rail locking means, the door lock locking means, etc. which show the 5th Example of this invention. It is a plane sectional view of an important section including a rail lock means, a door lock means, etc. which show the 5th example of the present invention. It is sectional drawing of the rotation stop means which shows the 6th Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Guide rail 4 Telescopic door body 5 Door pulley 6 Hinge means 8 Suspension side end frame 9 Movement side end frame 20 Wheel running part 21 Opening part 22 Fixed rail 23 Rotating rail 26 Anti-rotation means 30 Fixed bracket 31 Movable bracket 30a Engagement recessed part 32 engaging element 35 wheel 38 rail receiving tool 39 rail locking means 40 door lock locking means 41 door lock locking operating means 43 engaged tool 45 engaging tool 44 support tool 44a engaging portion 49 lock pin 50 spring 51 pressed member 52 pressing member 54 Main reinforcing member 55 Sub reinforcing member 54a Rail attachment portion 54b Frame attachment portion 63 Rail lock operation means 66 Operation rod 69 Holding means 95 Holding member 96 Vertical axis 97 Guide roller A Rotating storage position B Connection position

Claims (3)

The pantograph mechanism (10) includes a telescopic door body (4) suspended by a door wheel (5) that travels along a guide rail (3) in the left-right direction , and the telescopic door body (4) is telescopic in the left-right direction. A plurality of vertical bars (11) connected to the front and rear sides of the pantograph mechanism (10) and the vertical bars (11) on the moving end of the plurality of vertical bars (11). A movable side end frame (9) provided on both front and rear sides of the suspension end side, and the vertical beam (11) and the movable side end frame (9) in the middle in the left-right direction are hung (36) In the hanging type extendable door suspended from the door wheel (5) through the middle , the middle vertical beam (11) has a single vertical axis arranged at the approximate center between the front and rear vertical beams (11). The intermediate frame is connected to the middle door wheel (5) via the suspension tool (36), and the moving side end frame (9) is connected to the suspension base. Connected to the front and rear side vertical bar (11) the door roller (5) of the moving end side through a substantially central to the arranged single vertical axis like the hangers (36) between said movable end The guide rail (3 ) protrudes upward from the moving side end frame (9) to the moving end side of the frame (9) from the center in the left-right direction and substantially in the front-rear direction of the suspension end side of the moving end. ) by being guided from the front and rear sides and the moving end of the door car (the latter hanging member 5) and cooperating with the movable side end frame (9) (36) holding member for holding around the attitude (95) Is provided separately from the moving end side door wheel (5), and the holding member (95) has a guide roller (97) rotatably supported by a longitudinal axis (96). door. The suspension type extendable door according to claim 1, wherein the vertical axis (96) is vertically adjustable with respect to an upper end of the moving side end frame (9) . The guide rail (3) is provided between a pair of front and rear wheel travel parts (20) on which the wheel (35) of each door wheel (5) travels, and the both wheel travel parts (20). 36) and an opening (21) through which the guide roller (97) is fitted between the openings (21). .

Images