EP3517719B1 - Plug door device - Google Patents
Plug door device Download PDFInfo
- Publication number
- EP3517719B1 EP3517719B1 EP19151590.7A EP19151590A EP3517719B1 EP 3517719 B1 EP3517719 B1 EP 3517719B1 EP 19151590 A EP19151590 A EP 19151590A EP 3517719 B1 EP3517719 B1 EP 3517719B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pinion
- shaft
- arm
- swing arm
- door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 claims description 52
- 230000008859 change Effects 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 description 64
- 239000003381 stabilizer Substances 0.000 description 31
- 238000003780 insertion Methods 0.000 description 21
- 230000037431 insertion Effects 0.000 description 21
- 238000010276 construction Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 230000004048 modification Effects 0.000 description 10
- 238000012986 modification Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 230000004323 axial length Effects 0.000 description 8
- 238000003754 machining Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
- E05D15/10—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane
- E05D15/1042—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane with transversely moving carriage
- E05D15/1044—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane with transversely moving carriage specially adapted for use in railway-cars or mass transit vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D19/00—Door arrangements specially adapted for rail vehicles
- B61D19/003—Door arrangements specially adapted for rail vehicles characterised by the movements of the door
- B61D19/008—Door arrangements specially adapted for rail vehicles characterised by the movements of the door both swinging and sliding
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
- E05D15/10—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane
- E05D15/1005—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane the wing being supported on arms movable in horizontal planes
- E05D15/1007—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane the wing being supported on arms movable in horizontal planes specially adapted for use in railway-cars or mass transit vehicles
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/56—Power-operated mechanisms for wings using fluid-pressure actuators for horizontally-sliding wings
- E05F15/565—Power-operated mechanisms for wings using fluid-pressure actuators for horizontally-sliding wings for railway-cars
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
- E05D15/10—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane
- E05D15/1042—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane with transversely moving carriage
- E05D2015/1055—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane movable out of one plane into a second parallel plane with transversely moving carriage with slanted or curved track sections or cams
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/606—Accessories therefor
- E05Y2201/62—Synchronisation of suspension or transmission members
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/624—Arms
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/628—Bearings
- E05Y2201/636—Universal or ball joints
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/71—Toothed gearing
- E05Y2201/716—Pinions
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/71—Toothed gearing
- E05Y2201/722—Racks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/51—Application of doors, windows, wings or fittings thereof for vehicles for railway cars or mass transit vehicles
Definitions
- the present invention relates to a plug door device.
- a railway vehicle is provided with, for example, a plug door device.
- the plug door device opens and closes a door provided at an entrance of a vehicle body in the railway vehicle in a vehicle front-rear direction while moving the door in a vehicle width direction.
- DE 21 05 658 A1 discloses a sliding door which could be converted into a flap door or a pivot door.
- a shaft and a part are referred to as a "pivot arm" or a "pivot axis”.
- the shaft comprises gears, and the part are parallel, but may have a small inclination between each other.
- the shaft and the part are connected together via pivot arms.
- EP 0 936 119 A discloses that the swing and sliding doors, for railway carriages or buses and other public transport vehicles, has one or two panels with side closing edges at the side pipe beams of the door opening. At least one hook is at the door side edges, which is moved by the rotating side door beam between a position where the door panels are released and into a locking position when the doors are closed.
- the hook swings on an axis parallel to the door beam pipe, with a coupling linked to the hook at one end and to the door beam pipe at the other end.
- JP H06-262945 A describes one example of a plug door device that includes a stabilizer to prevent upper and lower portions of a door from being displaced relative to each other in a vehicle width direction and a vehicle front-rear direction when the door opens or closes.
- a plug door device 300 includes a feed screw type drive unit 310 serving as a drive source which opens and closes a single panel door 400, a stabilizer 320 which is provided to connect an upper portion and a lower portion of the door 400 to each other, and a rack and pinion mechanism 330 which guides the movement of the door 400 in a vehicle front-rear direction.
- a feed screw type drive unit 310 serving as a drive source which opens and closes a single panel door 400
- a stabilizer 320 which is provided to connect an upper portion and a lower portion of the door 400 to each other
- a rack and pinion mechanism 330 which guides the movement of the door 400 in a vehicle front-rear direction.
- the stabilizer 320 includes an upper swing arm 321 which is arranged on the upper portion of the door 400 and rotated in accordance with the movement of the door 400 in the vehicle width direction, a lower swing arm 322 which is arranged on the lower portion of the door 400 and rotated in accordance with the movement of the door 400 in the vehicle width direction, and a connection shaft 323 which connects the upper swing arm 321 and the lower swing arm 322 to each other.
- An upper portion of the connection shaft 323 is inserted into a distal end portion of the upper swing arm 321, and a lower portion of the connection shaft 323 is inserted into a distal end portion of the lower swing arm 322.
- the distal end portion of the upper swing arm 321 and the distal end portion of the lower swing arm 322 are connected to each other by the connection shaft 323.
- the upper swing arm 321 and the lower swing arm 322 rotate synchronously. Accordingly, the upper portion and the lower portion of the door 400 move synchronously in the vehicle width direction.
- the rack and pinion mechanism 330 includes an upper rack 331 which is provided on the upper portion of the door 400, an upper pinion 332 which is provided on the distal end of the upper swing arm 321, a lower rack 333 which is provided on the lower portion of the door 400, and a lower pinion 334 which is provided on the distal end of the lower swing arm 322.
- the upper rack 331 and the lower rack 333 have the same construction
- the upper pinion 332 and the lower pinion 334 have the same construction.
- the upper pinion 332 is attached to an upper end portion of the connection shaft 323 protruding upward from the upper swing arm 321
- the lower pinion 334 is attached to a lower end portion of the connection shaft 323 protruding downward from the lower swing arm 322.
- connection shaft 323 is connected to the upper pinion 332 and the lower pinion 334.
- rotation of the upper pinion 332 is transmitted to the lower pinion 334 via the connection shaft 323.
- the upper pinion 332 and the lower pinion 334 rotate synchronously.
- the upper rack 331 and the upper pinion 332 respectively mesh with the lower rack 333 and the lower pinion 334 in the same manner. This synchronously moves the upper portion and the lower portion of the door 400 in the vehicle front-rear direction.
- the door 400 is inclined relative to the vertical direction, and the lower portion of the door 400 is curved. Accordingly, the position of the upper swing arm 321 of the stabilizer 320 in the vehicle width direction is separated from the position of the lower swing arm 322 in the vehicle width direction. Therefore, rotation axis of the upper swing arm 321 and rotation axis of the lower swing arm 322 are inclined relative to the vertical direction so as to be located outward in the vehicle width direction at lower positions.
- This problem is not limited to a single panel door and may also occur with a double panel door.
- the rotation axis of the upper swing arm and the rotation axis of the lower swing arm are inclined relative to the vertical direction so as to be located inward in the vehicle width direction at lower positions, when each swing arm is rotated to move the door to a fully closed position, the weight of the door acts as a resistance on each swing arm. This may hinder smooth closing of the door.
- a plug door device includes a first swing arm, a second swing arm spaced apart from the first swing arm in a height direction when mounted on a door, a first pinion attached to a portion of the first swing arm separated from a rotation axis of the first swing arm, a first rack attachable to the door and meshed with the first pinion, a second pinion attached to a portion of the second swing arm separated from a rotation axis of the second swing arm, a second rack attachable to the door and meshed with the second pinion, an arm connection shaft, and a pinion connection shaft.
- the arm connection shaft includes a first arm shaft connected to the first swing arm and having an axis coinciding with the rotation axis of the first swing arm, a second arm shaft connected to the second swing arm and having an axis coinciding with the rotation axis of the second swing arm, and a third arm shaft connecting the first arm shaft and the second arm shaft.
- the arm connection shaft rotates integrally with the first swing arm and the second swing arm to synchronize rotation of the first swing arm and rotation of the second swing arm.
- the pinion connection shaft includes a first pinion shaft connected to the first pinion and having an axis coinciding with a rotation axis of the first pinion, a second pinion shaft connected to the second pinion and having an axis coinciding with a rotation axis of the second pinion, and a third pinion shaft connecting the first pinion shaft and the second pinion shaft.
- the pinion connection shaft rotates integrally with the first pinion and the second pinion to synchronize rotation of the first pinion and rotation of the second pinion.
- the arm connection shaft includes a first universal joint, which connects the first arm shaft and the third arm shaft, and a second universal joint, which connects the second arm shaft and the third arm shaft.
- the pinion connection shaft includes a third universal joint, which connects the first pinion shaft and the third pinion shaft, and a fourth universal joint, which connects the second pinion shaft and the third pinion shaft.
- axial directions of the first arm shaft and the second arm shaft are adjustable in the vertical direction. Accordingly, for example, even in a case where the door has a curved shape and the position of the first swing arm in the vehicle width direction is thereby separated from the position of the second swing arm in the vehicle width direction, it is possible to prevent the rotation axes of the first swing arm and the second swing arm from being inclined relative to the vertical direction by inclining the third arm shaft relative to the vertical direction.
- the weight of the door does not act as a resistance when the first swing arm and the second swing arm rotate. This enables smooth movement of the door in the vehicle width direction.
- the third universal joint and the fourth universal joint incline the third pinion shaft relative to the first pinion shaft and the second pinion shaft to adjust the axial directions of the first pinion shaft and the second pinion shaft relative to the vertical direction. Accordingly, even when the position of the first pinion in the vertical direction with respect to the first rack differs from the preset position due to machining errors or assembly errors of the first rack and the first pinion, the teeth of the first pinion are meshed with the teeth of the first rack at an appropriate position in the direction in which the first pinion and the first rack face each other. Thus, the first pinion is meshed with the first rack with an appropriate force. Similarly, the second pinion is meshed with the second rack with an appropriate force.
- the first pinion smoothly rotates smoothly on the first rack and the second pinion rotates smoothly on the second rack.
- the door smoothly opens and closes.
- the plug door device further includes an arm adjustment mechanism, which is configured to adjust the distance between the first swing arm and the second swing arm, and a pinion adjustment mechanism, which is configured to adjust the distance between the first pinion and the second pinion.
- the arm adjustment mechanism adjusts the distance between the first swing arm and the second swing arm to adjust the position of the first swing arm and the position of the second swing arm in correspondence with the position of the door relative to the vehicle body.
- the pinion adjustment mechanism changes the distance between the first pinion and the second pinion to arrange the first pinion at a position at which the first pinion meshes with the first rack and arrange the second pinion at a position at which the second pinion meshes with the second rack.
- the arm adjustment mechanism includes a first male threaded portion, which is provided on the first arm shaft, and a first nut, which is fastened to the first male threaded portion.
- the first nut is configured to change the position of the first swing arm by moving in an axial direction of the first male threaded portion.
- This construction changes the distance between the first swing arm and the second swing arm in accordance with the fastened amount of the first nut. Therefore, the distance between the first swing arm and the second swing arm is adjusted in a stepless manner.
- the pinion adjustment mechanism includes a second male threaded portion, which is provided on the second pinion shaft, and a second nut, which is fastened to the second male threaded portion.
- the second nut is configured to change the position of the second pinion by moving in an axial direction of the second male threaded portion.
- This construction changes the distance between the first pinion and the second pinion in accordance with the fastened amount of the second nut. Therefore, the distance between the first pinion and the second pinion is adjusted in a stepless manner.
- At least one of the first arm shaft and the first pinion shaft includes a first connection shaft and a second connection shaft, which are separately formed, and a connection member connected to the first connection shaft to be non-rotatable to the first connection shaft and movable relative to the first connection shaft and connected to the second connection shaft to be non-rotatable to the second connection shaft and non-movable relative to the second connection shaft.
- This construction restricts relative rotation between the first connection shaft and the second connection shaft allows the axial length of the first arm shaft (first pinion shaft) to be easily changed.
- the plug door device further includes an attachment member configured to attach the first arm shaft to a vehicle body.
- the attachment member is configured to be attached to a fixing member provided on the vehicle body and including a first vertical serration extending in the vertical direction.
- the attachment member includes a second vertical serration configured to be meshed with the first vertical serration.
- the second vertical serration of the attachment member meshes with the first vertical serration of the fixing member. This restricts inclination of the attachment member relative to the fixing member. Accordingly, the arm connection shaft inserted into the attachment member is not inclined relative to the fixing member. This further restricts inclination of the rotation axes of the first swing arm and the second swing arm relative to the vertical direction.
- the first pinion and the first rack are arranged on an upper portion of the door.
- the second pinion and the second rack are arranged on a lower portion of the door.
- the above aspect [7] does not arrange the rack and pinion mechanism at the middle of the door and thereby improves the aesthetic appearance of the door.
- the plug door device according to the present invention smoothly opens and closes the door.
- a plug door device 1 opens and closes double-slide doors 220R and 220L provided on a vehicle body 210 of a railway vehicle 200.
- rolling bodies 230 are provided at two locations spaced apart in a front-rear direction (hereinafter, referred to as a "front-rear direction ZA") of the vehicle 200.
- the number of rolling bodies 230 can be arbitrarily set.
- Each rolling body 230 is slidably housed in a rail 231 which is provided in the vehicle body 210. As shown by two-dot chain lines of Figs.
- the door 200R has a shape in which a lower portion of the door 220R is bent toward an inside of the vehicle 200 in a vehicle width direction (hereinafter, referred to as a "the vehicle width direction ZB") of the vehicle 200.
- the door 220L is similar to the door 220R in construction and shape.
- the plug door device 1 can be applied to a cantilever door.
- the plug door device 1 includes a drive mechanism 10 serving as a drive source which opens and closes the doors 220R and 220L.
- the drive mechanism 10 is provided on an upper portion of the vehicle body 210.
- the drive mechanism 10 includes two rods 11R and 11L which extend in the front-rear direction ZA, a drive cylinder 12 which moves the rods 11R and 11L in the front-rear direction ZA with pneumatic pressure, a rail mechanism 16 for guiding movements of the doors 220R and 220L in the vehicle width direction ZB and the front-rear direction ZA, and a pulling mechanism 20 which moves the rods 11R and 11L in opposite directions.
- the two rods 11R and 11L may be moved by a feed screw mechanism driven by an electric motor instead of the drive cylinder 12.
- the two rods 11R and 11L are arranged spaced apart in the vehicle width direction ZB.
- a door hanger 15R is connected to the rod 11R by a connection member 13R and a slide member 14R.
- a door hanger 15L is connected to the rod 11L by a connection member 13L and a slide member 14L.
- connection member 13R connects the rod 11R and the slide member 14R.
- the slide member 14R extends in the front-rear direction ZA.
- the door hanger 15R is attached rotatably about a rotary shaft 15A, which is located at a position on the slide member 14R separated from the connection member 13R (refer to Fig. 1(a) ) in the front-rear direction ZA.
- the door hanger 15R includes an arm 15B which is supported by the rotary shaft 15A, an attachment portion 15C which is attached to the door 220R and horizontally movable in the vehicle width direction ZB, and a connection portion 15D which is rotatably connected to the arm 15B and pivotally connected to the attachment portion 15C.
- the attachment portion 15C is attached to the door 220R by a bolt (not shown).
- An elongated hole 15E into which the bolt is inserted is formed in the attachment portion 15C.
- a height direction (hereinafter, referred to as a "height direction ZC") of the vehicle 200 is a longitudinal direction of the elongated hole 15E.
- the height direction ZC coincides with the vertical direction.
- a rolling body 15F which is rotatable around rotation axis along the height direction ZC is attached to an upper surface of the attachment portion 15C.
- the connection member 13L, the slide member 14L, and the door hanger 15L are respectively similar in construction to the connection member 13R, the slide member 14R, and the door hanger 15R.
- the rail mechanism 16 includes a support member 17 which is attached to the vehicle body 210.
- a length of the support member 17 in the front-rear direction ZA is greater than a width of an entrance 211 in the front-rear direction ZA.
- Linear first rails 18R and 18L extending in the front-rear direction ZA are attached to a front surface of the support member 17, and second rails 19R and 19L are attached to a lower surface of the support member 17.
- the first rails 18R and 18L are open to the front side of the support member 17.
- the slide member 14R is movably attached to the first rail 18R in the front-rear direction ZA
- the slide member 14L is movably attached to the first rail 18L in the front-rear direction ZA.
- each of the second rails 19R and 19L includes an inclined portion 19A, which is inclined to be bent outward in the vehicle width direction ZB from the center of the entrance 211 toward an end of the entrance 211 in the front-rear direction ZA, and a linear portion 19B, which extends in the front-rear direction ZA from an end of the inclined portion 19A in the front-rear direction ZA.
- the rolling body 15F of the door hanger 15R is slidably accommodated in the second rail 19R.
- the rolling body 15F of the door hanger 15L is slidably accommodated in the second rail 19L.
- the pulling mechanism 20 is arranged between the two rods 11R and 11L in the vehicle width direction ZB.
- An example of the pulling mechanism 20 includes pinion teeth (not shown) that mesh with rack teeth (not shown) which are provided on the two rods 11R and 11L.
- the pinion teeth meshed with the rack teeth of the rod 11R rotate, and the rod 11L meshed with the pinion teeth moves in a direction opposite to the movement direction of the rod 11R.
- the plug door device 1 includes stabilizers 30R and 30L which prevent an upper portion and a lower portion of each of the doors 220R and 220L from being displaced relative to each other when the doors 220R and 220L are opened and closed.
- the stabilizers 30R and 30L are provided on both sides of the entrance 211 in the front-rear direction ZA.
- the stabilizer 30R includes an upper swing arm 31 which is an example of a first swing arm arranged on an upper portion of the door 220R, a lower swing arm 32 which is an example of a second swing arm arranged on a lower portion of the door 220R, and an arm connection shaft 40 which connects the upper swing arm 31 and the lower swing arm 32 to each other.
- the stabilizer 30R includes an upper pinion 33 which is an example of a first pinion provided on the upper swing arm 31, a lower pinion 34 which is an example of a second pinion provided on the lower swing arm 32, and a pinion connection shaft 50 which connects the upper pinion 33 and the lower pinion 34 to each other.
- the arm connection shaft 40 includes a first arm shaft 41 connected to the upper swing arm 31 and having an axis coinciding with the rotation axis of the upper swing arm 31, a second arm shaft 42 connected to the lower swing arm 32 and having an axis coinciding with the rotation axis of the lower swing arm 32, and a third arm shaft 43 connecting the first arm shaft 41 and the second arm shaft 42.
- the arm connection shaft 40 includes a first universal joint 44 which connects the first arm shaft 41 and the third arm shaft 43 so as to be integrally rotatable with each other, and a second universal joint 45 which connects the second arm shaft 42 and the third arm shaft 43 so as to be integrally rotatable with each other.
- An example of each of the first universal joint 44 and the second universal joint 45 is a Cardan joint.
- Each of the first universal joint 44 and the second universal joint 45 may be a Rzeppa joint or a constant velocity joint instead of the Cardan joint.
- the first arm shaft 41 includes a first connection shaft 41A which is connected to the first universal joint 44 and a second connection shaft 41B which is connected to an upper end portion of the first connection shaft 41A.
- the first connection shaft 41A and the second connection shaft 41B are integrally rotatable. In this way, the first arm shaft 41, the second arm shaft 42, and the third arm shaft 43 are integrally rotatable.
- the arm connection shaft 40 thereby synchronizes the rotation of the upper swing arm 31 and the rotation of the lower swing arm 32.
- the upper swing arm 31 and the lower swing arm 32 are attached to the door 220R in conformance with the shape of the door 220R. Accordingly, the lower swing arm 32 is arranged inside the upper swing arm 31 in the vehicle width direction ZB.
- the first arm shaft 41 and the second arm shaft 42 extend in the height direction ZC (vertical direction).
- the third arm shaft 43 can be inclined toward the first arm shaft 41 by the first universal joint 44 and inclined toward the second arm shaft 42 by the second universal joint 45. Further, the third arm shaft 43 is inclined so as to be located outward in the vehicle width direction ZB at upper positions.
- the upper pinion 33 is attached to a portion of the upper swing arm 31 which is separated from the rotation axis of the upper swing arm 31, for example, a distal end portion of the upper swing arm 31.
- an upper rack 35 extending in the front-rear direction ZA is attached to an upper portion of the door 220R facing the upper pinion 33 in the vehicle width direction ZB. The upper pinion 33 and the upper rack 35 mesh with each other.
- the lower pinion 34 is attached to a portion of the lower swing arm 32 which is separated from the rotation axis of the lower swing arm 32, for example, a distal end portion of the lower swing arm 32.
- a lower rack 36 extending in the front-rear direction ZA is attached to a lower portion of the door 220R facing the lower pinion 34 in the vehicle width direction ZB.
- the lower pinion 34 and the lower rack 36 mesh with each other.
- the upper pinion 33 and the lower pinion 34 have the same number of teeth and the same shape, and the upper rack 35 and the lower rack 36 have the same number of teeth and the same shape.
- the pinion connection shaft 50 includes a first pinion shaft 51 connected to the upper pinion 33 and having an axis coinciding with the rotation axis of the upper pinion 33, a second pinion shaft 52 connected to the lower pinion 34 and having an axis coinciding with the rotation axis of the lower pinion 34, and a third pinion shaft 53 connecting the first pinion shaft 51 and the second pinion shaft 52.
- the pinion connection shaft 50 includes a third universal joint 54, which connects the first pinion shaft 51 and the third pinion shaft 53 in an integrally rotatable manner, and a fourth universal joint 55, which connects the second pinion shaft 52 and the third pinion shaft 53 in an integrally rotatable manner.
- An example of each of the third universal joint 54 and the fourth universal joint 55 is a Cardan joint.
- Each of the third universal joint 54 and the fourth universal joint 55 may be a Rzeppa joint or a constant velocity joint instead of the Cardan joint.
- the first pinion shaft 51 includes a first connection shaft 51A, which is connected to the third universal joint 54, and a second connection shaft 51B, which is connected to an upper end portion of the first connection shaft 51A.
- the first connection shaft 51A and the second connection shaft 51B are integrally rotatable.
- the first pinion shaft 51, the second pinion shaft 52, and the third pinion shaft 53 are integrally rotatable.
- the pinion connection shaft 50 synchronizes the rotation of the upper pinion 33 and the rotation of the lower pinion 34.
- the plug door device 1 includes retracting devices 21R, 21L, 22R, and 22L which retract the pinion connection shafts 50 of the stabilizers 30R and 30L inward in the vehicle width direction ZB.
- the plug door device 1 includes lock cylinders 23R and 23L (lock cylinder 23L not shown in Figs. 3(a) and 3(b) , refer to Figs. 12(a) and 12(b) ) which restrict rotation about the rotation axis of the lower swing arm 32 of the stabilizers 30R and 30L.
- the retracting devices 21R and 21L are attached to the vehicle body 210 above the upper pinion 33 and the upper rack 35.
- the retracting devices 22R and 22L are attached to the vehicle body 210 below the lower pinion 34 and the lower rack 36.
- the retracting devices 21R and 21L have arms 21A for retracting the upper end portions of the pinion connection shafts 50 of the stabilizers 30R and 30L inward in the vehicle width direction ZB.
- the retracting devices 22R and 22L have arms 22A for retracting the lower end portions of the pinion connection shafts 50 of the stabilizers 30R and 30L inward in the vehicle width direction ZB.
- the stabilizer 30R will now be described in detail with reference to Figs. 1(a), 1(b) , and 4(a) to 11(b) .
- the stabilizer 30L has the same construction as the stabilizer 30R.
- Figs. 4(a) to 4(d) and 5 show the upper portion of the stabilizer 30R, particularly, the upper swing arm 31 and surroundings thereof.
- the upper swing arm 31 includes an arm support portion 31A which supports the first arm shaft 41 of the arm connection shaft 40 in a non-rotatable manner, a pinion support portion 31B which supports the first pinion shaft 51 of the pinion connection shaft 50 in a rotatable manner, and a connection portion 31C which connects the arm support portion 31A and the pinion support portion 31B.
- the arm support portion 31A is tubular and has an insertion hole 31D (refer to Fig. 5 ) into which the first arm shaft 41 can be inserted
- the pinion support portion 31B is tubular and has an insertion hole 31E (refer to Fig. 5 ) into which the first pinion shaft 51 can be inserted.
- the dimension of the pinion support portion 31B in the height direction ZC is larger than the dimension of the arm support portion 31A in the height direction ZC.
- the second connection shaft 51B of the first pinion shaft 51 projects toward two opposite sides in the height direction ZC with from the pinion support portion 31B.
- the upper pinion 33 is attached to a portion of the second connection shaft 51B above the pinion support portion 31B in a non-rotatable manner.
- a support arm 60 is attached to a portion of the second connection shaft 51B between the pinion support portion 31B and the upper pinion 33 in the height direction ZC.
- the support arm 60 extends in a direction orthogonal to the second connection shaft 51B.
- Two first rolling bodies 61 which are arranged spaced apart in the front-rear direction ZA, and a second rolling body 62, which is arranged between the two first rolling bodies 61, are attached to a distal end portion of the support arm 60.
- the two first rolling bodies 61 are each rotatable about its rotation axis in a direction extending in the height direction ZC
- the second rolling body 62 is rotatable about its rotation axis in a direction orthogonal to the height direction ZC.
- an upper end portion of the second rolling body 62 is located above upper end portions of the two first rolling bodies 61.
- the two first rolling bodies 61 and the second rolling body 62 are accommodated in an upper rail 221 which is provided on a rear side (the outside in the vehicle width direction ZB) of the upper rack 35 of the door 220R.
- the upper rail 221 extends in the front-rear direction ZA and is open downward.
- the two first rolling bodies 61 which is in contact with one of the two side walls of the upper rail 221 in the vehicle width direction ZB, and the second rolling body 62, which is in contact with an upper wall of the upper rail 221, supports the door 220R,
- the second connection shaft 51B of the first pinion shaft 51 is supported by a first rolling bearing 63 and a second rolling bearing 64 to be rotatable relative to the upper swing arm 31.
- the first rolling bearing 63 is a bearing integrally combining a thrust bearing 63A and a radial bearing 63B.
- the thrust bearing 63A is arranged on an upper surface of the pinion support portion 31B, and the radial bearing 63B is arranged in an upper end portion of the insertion hole 31E of the pinion support portion 31B.
- the second rolling bearing 64 is attached to a lower end portion of the insertion hole 31E of the pinion support portion 31B.
- the support arm 60 is supported by a third rolling bearing 65 to be rotatable about the first pinion shaft 51.
- the support arm 60 is supported by the thrust bearing 63A of the first rolling bearing 63 in the height direction ZC.
- the thrust bearing 63A and the radial bearing 63B may be formed separately in the first rolling bearing 63.
- the thrust bearing 63A, the radial bearing 63B, the second rolling bearing 64, and the third rolling bearing 65 may each be a ball bearing or a roller bearing.
- the portion of the second connection shaft 41B of the first arm shaft 41 below the arm support portion 31A of the upper swing arm 31 is inserted into an attachment member 66 to attach the stabilizer 30R to the vehicle body 210.
- the portion of the second connection shaft 41B above the portion inserted into the attachment member 66 includes an attachment shaft 41C, to which the arm support portion 31A is attached, and a first male threaded portion 41D, which is located below the attachment shaft 41C and has a larger diameter than that of the attachment shaft 41C.
- the arm support portion 31A is located between a nut 69, which is attached to the attachment shaft 41C, and an upper end surface of the first male threaded portion 41D in the height direction ZC thereby connecting the upper swing arm 31 to the first arm shaft 41.
- the attachment member 66 includes an insertion portion 66A, which has an insertion hole 66C (refer to Fig. 5 ) that receives the first connection shaft 41A is inserted, and a plate-shaped attachment portion 66B, which extends outward from the insertion portion 66A.
- the attachment member 66 is fixed to an upper fixing member 212R, which is fixed to the upper portion of the vehicle body 210, by bolts B inserted into two elongated holes 66D, which are formed in the attachment portion 66B and elongated in the vehicle width direction ZB. This allows for adjustment of the position of the attachment member 66 relative to the upper fixing member 212R in the vehicle width direction ZB.
- the second connection shaft 41B of the first arm shaft 41 is supported by a fourth rolling bearing 67 and a fifth rolling bearing 68 to be relative to the attachment member 66.
- the fourth rolling bearing 67 is a bearing integrally combining a thrust bearing 67A and a radial bearing 67B.
- the thrust bearing 67A is arranged on an upper surface of the insertion portion 66A, and the radial bearing 67B is arranged in an upper end portion of the insertion hole 66C of the insertion portion 66A.
- the fifth rolling bearing 68 is attached to a lower end portion of the insertion hole 66C of the insertion portion 66A.
- the thrust bearing 67A and the radial bearing 67B may be separately formed in the fourth rolling bearing 67.
- the thrust bearing 67A, the radial bearing 67B, and the fifth rolling bearing 68 may each be a ball bearing or a roller bearing.
- the upper fixing member 212R includes two holes 212A into which the bolts B are inserted.
- the upper fixing member 212R includes a plurality of first vertical serrations 212B extending in the vertical direction and formed on the portion of the upper fixing member 212R facing the attachment portion 66B.
- the portion of the attachment portion 66B facing the upper fixing member 212R includes a plurality of second vertical serrations 66E extending in the vertical direction.
- the second vertical serrations 66E are meshed with the first vertical serrations 212B.
- the stabilizer 30R includes an arm adjustment mechanism 70 which is configured to adjust the distance between the upper swing arm 31 and the lower swing arm 32 (refer to Figs. 3(a) and 3(b) ).
- the arm adjustment mechanism 70 includes a first male threaded portion 41D which is provided on the second connection shaft 41B of the first arm shaft 41, a first nut 71 which is fastened to first male threaded portion 41D, and a lock nut 72 which restricts rotation of the first nut 71 relative to the first male threaded portion 41D.
- the arm adjustment mechanism 70 includes a length adjustment unit 73 which adjusts an axial length of the first arm shaft 41.
- the length adjustment unit 73 includes a cylindrical connection member 46 which connects the first connection shaft 41A and the second connection shaft 41B of the first arm shaft 41 to each other.
- the second connection shaft 41B is connected to an upper end portion of the connection member 46 to restrict rotation of the second connection shaft 41B and axial movement of the second connection shaft 41B.
- the first connection shaft 41A is connected to a lower portion of the connection member 46 to restrict rotation of the first connection shaft 41A and axial movement of the first connection shaft 41A.
- splines 41E are formed on the first connection shaft 41A, and splines (not shown) meshed with the splines 41E are formed on an inner circumferential portion of the connection member 46.
- first connection shaft 51A of the first pinion shaft 51 and the third pinion shaft 53 are similar in construction to the first connection shaft 41A of the first arm shaft 41 and the third arm shaft 43. Accordingly, in Fig. 7 , reference numerals of parts related to the pinion connection shaft 50 are included in parentheses.
- Figs. 8(a) to 8(c) and 9 show a lower portion of the stabilizer 30R, particularly, the lower swing arm 32 and surroundings thereof.
- the lower swing arm 32 includes an arm support portion 32A which supports the second arm shaft 42 of the arm connection shaft 40 in a non-rotatable manner, a pinion support portion 32B which rotatably supports the second pinion shaft 52 of the pinion connection shaft 50, and a connection portion 32C which connects the arm support portion 32A and the pinion support portion 32B.
- the arm support portion 32A is tubular and has an insertion hole 32D (refer to Fig. 9 ), which receives the third arm shaft 43, and the pinion support portion 32B, which is tubular and has an insertion hole 32E (refer to Fig. 9 ) that receives the third pinion shaft 53.
- a dimension of the pinion support portion 32B in the height direction ZC is larger than a dimension of the arm support portion 32A in the height direction ZC.
- the pinion support portion 32B includes an extension portion 32F extending in the front-rear direction ZA.
- the extension portion 32F includes a hole 32G into which a lock pin 23A (refer to Figs. 12(a) and 12(b) ) of the lock cylinder 23R can be inserted.
- the portion of the second arm shaft 42 of the arm connection shaft 40 below the arm support portion 32A is inserted into the attachment member 66 to attach the stabilizer 30R to the vehicle body 210.
- the attachment member 66 is fixed to a lower fixing member 213R, which is fixed to the lower side of the vehicle body 210, by bolts B inserted into two elongated holes 66D of the attachment portion 66B.
- the lower fixing member 213R has the same structure as the upper fixing member 212R.
- the portion of the lower fixing member 213R facing the attachment portion 66B includes a plurality of first vertical serrations 213A extending in the vertical direction. Second vertical serrations 66E of the attachment portion 66B are meshed with the first vertical serrations 213A.
- the second arm shaft 42 is supported by the first rolling bearing 82 and the second rolling bearing 83 to be rotatable relative to the attachment member 66.
- the first rolling bearing 82 is a bearing integrally combining a thrust bearing 82A and a radial bearing 82B.
- the thrust bearing 82A is arranged on the upper surface of the insertion portion 66A
- the radial bearing 82B is arranged on the upper end portion of the insertion hole 66C of the insertion portion 66A.
- the second rolling bearing 83 is attached to the lower end portion of the insertion hole 66C of the insertion portion 66A.
- the thrust bearing 82A and the radial bearing 82B may be formed separately in the first rolling bearing 82.
- the thrust bearing 82A, the radial bearing 82B, and the second rolling bearing 83 may each be a ball bearing or a roller bearing.
- the second pinion shaft 52 projects toward two opposite sides in the height direction ZC from the pinion support portion 32B.
- the lower pinion 34 is attached to the portion of the second pinion shaft 52 below the pinion support portion 32B in a non-rotatable manner.
- a support arm 80 is attached to the portion of the second pinion shaft 52 below the lower pinion 34.
- the support arm 80 has substantially the same shape as the support arm 60.
- the rolling bodies 81 are attached to a distal end portion of the support arm 80 spaced apart in the front-rear direction ZA.
- the two rolling bodies 81 are rotatable about a rotation axis extending in the height direction ZC.
- the two rolling bodies 81 are accommodated in a lower rail 222 which is provided on a lower end portion of the door 220R.
- the lower rail 222 extends in the front-rear direction ZA and is open downward.
- the two rolling bodies 81 are in contact with one of the two side walls of the lower rail 222 in the vehicle width direction ZB.
- the second pinion shaft 52 is supported by a third rolling bearing 84 and a fourth rolling bearing 85 so as to be rotatable about the lower swing arm 32.
- the third rolling bearing 84 is a bearing integrally combining the thrust bearing 84A and the radial bearing 84B.
- the thrust bearing 84A is arranged on an upper surface of the pinion support portion 32B, and the radial bearing 84B is arranged on the upper end portion of the insertion hole 32E of the pinion support portion 32B.
- the fourth rolling bearing 85 is attached to a lower end portion of the insertion hole 32E of the pinion support portion 32B.
- the support arm 80 is supported by a fifth rolling bearing 86 to be rotatable relative to the second pinion shaft 52.
- the thrust bearing 84A and the radial bearing 84B may be separately formed in the third rolling bearing 84.
- the thrust bearing 84A, the radial bearing 84B, the fourth rolling bearing 85, and the fifth rolling bearing 86 may each be a ball bearing or a roller bearing.
- the stabilizer 30R includes a pinion adjustment mechanism 90 which is configured to adjust the distance between the upper pinion 33 and the lower pinion 34 (refer to Fig. 1(a) ).
- the pinion adjustment mechanism 90 includes a second male threaded portion 52A which is provided on the portion of the second pinion shaft 52 above the pinion support portion 32B, a second nut 91 which is fastened to the second male threaded portion 52A, and a lock nut 92 which restricts rotation of the second nut 91 relative to the second male threaded portion 52A.
- the pinion adjustment mechanism 90 includes a length adjustment unit 93 which is configured to adjust the axial length of the first pinion shaft 51.
- the length adjustment unit 93 includes a connection member 56.
- the length adjustment unit 93 which is similar in construction to the length adjustment unit 73 of the arm adjustment mechanism 70 includes splines 51E formed on the first connection shaft 51A of the first pinion shaft 51.
- the arm adjustment mechanism 70 adjusts the position of the upper swing arm 31 in the height direction ZC by adjusting a fastened amount of the first nut 71 to change the position of the first connection shaft 41A relative to the attachment member 66 in the height direction ZC.
- the position of the second arm shaft 42 (refer to Figs. 3(a) and 3(b) ) in the height direction ZC does not change.
- the length adjustment unit 93 shown in Fig. 7 adjusts the axial length of the first pinion shaft 51 in the pinion connection shaft 50.
- the arm adjustment mechanism 70 adjusts the distance between the upper swing arm 31 and the lower swing arm 32 in the height direction ZC.
- the pinion adjustment mechanism 90 adjusts the position of the lower pinion 34 in the height direction ZC by adjusting a fastened amount of the second nut 91 to change the position of the first connection shaft 51A relative to the attachment member 66 in the height direction ZC.
- the positions of the upper pinion 33 and the upper swing arm 31 (refer to Figs. 3(a) and 3(b) ) in the height direction ZC do not change. Accordingly, the pinion adjustment mechanism 90 adjusts the distance between the upper pinion 33 and the lower pinion 34 in the height direction ZC.
- Figs. 1(a) to 3(b) and 11(a) to 12(b) The double-dashed lines in Figs. 10(a) and 10(b) show the doors 220R and 220L located at fully open positions.
- the drive cylinder 12 is driven to move the doors 220R and 220L from the fully closed positions by moving the rods 11R and 11L toward opposite sides in the front-rear direction ZA. Accordingly, as shown in Fig. 1(a) , the slide members 14R and 14L connected to the rods 11R and 11L move away from each other in the front-rear direction ZA. Therefore, the doors 220R and 220L move away from each other in the front-rear direction ZA with the door hangers 15R and 15L connected to the slide members 14R and 14L.
- the rolling bodies 15F move along the inclined portions 19A of the second rails 19R and 19L.
- this synchronously rotates the upper swing arms 31 and the lower swing arms 32 of the stabilizers 30R and 30L.
- the upper pinions 33 and the lower pinions 34 of the stabilizers 30R and 30L are synchronously rotated.
- the plug door device 1 is operated in this manner so that each of the doors 220R and 220L moves outward in the vehicle width direction ZB while moving in the front-rear direction ZA.
- the two rolling bodies 230 on the lower end portion of each of the doors 220R and 220L moves along the inclined portions 231A of the rails 231 (double-dashed lines) on the vehicle body 210.
- the drive cylinder 12 is controlled to move the rods 11R and 11L in directions opposite to the directions for opening the doors 220R and 220L. Accordingly, after the rolling body 15F moves on the linear portion 19B of each of the second rails 19R and 19L, the rolling body 15F moves on the inclined portion 19A. As the rolling body 15F moves on the linear portion 19B, the upper pinion 33 and the lower pinion 34 rotate synchronously.
- FIG. 13 A method for attaching the plug door device 1 to the vehicle 200 will now be described with reference to Fig. 13 .
- the elements of the plug door device 1 and the vehicle 200 will be denoted by reference numerals indicating the elements of the plug door device 1 and the vehicle 200 shown in Fig. 1(a) to Fig. 9 .
- the attachment method of the plug door device 1 includes a device attachment process (step S1), a door temporary attachment process (step S2), a position adjustment process (step S3), and a door main attachment process (step S4).
- the drive mechanism 10 and the stabilizers 30R and 30L are attached to the vehicle body 210 before the doors 220R and 220L are attached.
- the second vertical serrations 66E of the upper-side attachment members 66 of the stabilizers 30R and 30L are meshed with the first vertical serrations 212B of the upper fixing members 212R and 212L
- the second vertical serrations 66E of the lower-side attachment members 66 are meshed with the first vertical serrations 213A of the lower fixing members 213R and 213L.
- the upper rails 221 of the doors 220R and 220L are placed on the second rolling bodies 62 of the support arms 60 of the stabilizers 30R and 30L. Accordingly, the doors 220R and 220L are supported by the stabilizers 30R and 30L, respectively.
- the upper rack 35, the lower rack 36, the upper rail 221, and the lower rail 222 are attached to the doors 220R and 220L.
- the positions of the upper swing arm 31, the lower swing arm 32, the upper pinion 33, the lower pinion 34, the support arm 60, and the support arm 80 in the height direction ZC are adjusted by the arm adjustment mechanism 70 and the pinion adjustment mechanism 90.
- the position of the upper swing arm 31 in the height direction ZC relative to the upper-side attachment member 66 is changed with the arm adjustment mechanism 70 to adjust the positions of the doors 220R and 220L with respect to the vehicle body 210.
- the pinion adjustment mechanism 90 changes the position of the lower swing arm 32 in the height direction ZC relative to the lower-side attachment member 66. Accordingly, the position of the lower pinion 34 is aligned with the lower rack 36 in the height direction ZC and the position of the rolling body 81 is aligned with the lower rail 222 in the height direction ZC.
- the doors 220R and 220L are attached by bolts (not shown) to the door hangers 15R and 15L, respectively.
- the longitudinal direction of the elongated holes 15E into which the bolts of each of the door hangers 15R and 15L are inserted is the height direction ZC.
- the plug door device 1 of the present embodiment has the following advantages.
- the plug door device 1 of the present embodiment inclines the third pinion shaft 53 relative to the first pinion shaft 51 and the second pinion shaft 52 with the third universal joint 54 and the fourth universal joint 55.
- This adjusts the axial directions of the first pinion shaft 51 and the second pinion shaft 52 relative to the vertical direction. Accordingly, even when the position of the upper pinion 33 in the vertical direction relative to the upper rack 35 differs from the preset position due to machining errors or assembly errors of the upper pinion 33 and the upper rack 35, the position at which the teeth of the upper pinion 33 are meshed with the teeth of the upper rack 35 mesh with each other remain unchanged in the direction (vehicle width direction ZB) in which the upper pinion 33 and the upper rack 35 face each other.
- the upper pinion 33 and the upper rack 35 are meshed with each other with an appropriate force.
- the lower pinion 34 and the lower rack 36 are meshed with each other with an appropriate force. Accordingly, even in a case where the position of the upper pinion 33 in the vehicle width direction ZB is separated from the position of the lower pinion 34 in the vehicle width direction ZB, the upper pinion 33 rotates smoothly on the upper rack 35, and the lower pinion 34 rotates smoothly on the lower rack 36.
- the doors 220R and 220L are smoothly opened and closed.
- the pinion connection shaft 50 would need to transmit the rotation of one of the upper swing arm 31 and the lower swing arm 32 to the other one of the upper swing arm 31 and the lower swing arm 32.
- the third arm shaft 43 would be rotated relative to the first arm shaft 41 and the second arm shaft 42 by the universal joints 44 and 45.
- the rotation of one of the upper swing arm 31 and the lower swing arm 32 would not be appropriately transmitted to the other one of the upper swing arm 31 and the lower swing arm 32. Therefore, it would be difficult for the pinion connection shaft 50 to synchronize the rotations of the upper swing arm 31 and the lower swing arm 32.
- the plug door device 1 of the present embodiment synchronizes the rotations of the upper swing arm 31 and the lower swing arm 32 with the arm connection shaft 40, which is separate from the pinion connection shaft 50 that synchronizes the rotation of the upper pinion 33 and the lower pinion 34.
- plug door device according to the present invention is applicable to, for example, modified examples that are described below and combinations of at least two of the modified examples that do not contradict each other.
- the third arm shaft 43 in the arm connection shaft 40 may be formed by a plurality of shafts and a universal joint which connects the shafts in an integrally rotatable manner.
- the number of universal joints of the arm connection shaft 40 may be three or more.
- the third pinion shaft 53 in the pinion connection shaft 50 may be formed by a plurality of shafts and a universal joint which connects the shafts in a integrally rotatable manner.
- the number of universal joints of the pinion connection shaft 50 may be three or more.
- the arm adjustment mechanism 70 and the pinion adjustment mechanism 90 may be omitted from at least one of the stabilizers 30R and 30L.
- the first vertical serrations 212B may be omitted from at least one of the upper fixing members 212R and 212L.
- the second vertical serrations 66E may be omitted from the attachment member 66 that is fixed to the upper fixing member from which the first vertical serrations 212B are omitted.
- first vertical serrations 213A may be omitted from at least one of the lower fixing members 213R and 213L.
- the second vertical serrations 66E may be omitted from the attachment member 66 that is fixed to the lower fixing member from which the first vertical serrations 213A are omitted.
- the third arm shaft 43 may be omitted from the arm connection shaft 40.
- at least one of the first universal joint 44 and the second universal joint 45 extends toward the other of the first universal joint 44 and the second universal joint 45, and the first universal joint 44 and the second universal joint 45 are directly connected to each other. Accordingly, the first arm shaft 41 and the second arm shaft 42 are connected by only the first universal joint 44 and the second universal joint 45.
- at least one of the first universal joint 44 and the second universal joint 45 may have a shaft which replaces the third arm shaft 43.
- the shaft of the first universal joint 44 is connected to the second universal joint 45, and thus, the first universal joint 44 and the second universal joint 45 are directly connected to each other.
- the first universal joint 44 and the second universal joint 45 are directly connected to each other by connecting the shaft of the first universal joint 44 and the shaft of the second universal joint 45 to each other.
- the third pinion shaft 53 may be omitted from the pinion connection shaft 50.
- at least one of the third universal joint 54 and the fourth universal joint 55 extends toward the other of the third universal joint 54 and the fourth universal joint 55, and the third universal joint 54 and the fourth universal joint 55 are directly connected to each other.
- the first pinion shaft 51 and the second pinion shaft 52 are connected by only the third universal joint 54 and the fourth universal joint 55.
- at least one of the third universal joint 54 and the fourth universal joint 55 may have a shaft which replaces the third pinion shaft 53.
- the shaft of the third universal joint 54 is connected to the fourth universal joint 55, and thus, the third universal joint 54 and the fourth universal joint 55 are directly connected to each other.
- the third universal joint 54 and the fourth universal joint 55 are directly connected to each other by connecting the shaft of the third universal joint 54 and the shaft of the fourth universal joint 55 to each other.
- At least one of the third universal joint 54 and the fourth universal joint 55 may be omitted from the pinion connection shaft 50.
- the third pinion shaft 53 is directly connected to each of the first pinion shaft 51 and the second pinion shaft 52.
- the plug door device may be implemented as follows.
- the plug door device includes a first swing arm and a second swing arm which are arranged spaced apart in a height direction of a door, a first pinion which is attached to a portion of the first swing arm separated from rotation axis of the first swing arm, a first rack which is attached to the door and meshes with the first pinion, a second pinion which is attached to a portion of the second swing arm separated from rotation axis of the second swing arm, a second rack which is attached to the door and meshes with the second pinion, and an arm connection shaft which includes a first arm shaft connected to the first swing arm and having an axis coinciding with the rotation axis of the first swing arm, a second arm shaft connected to the second swing arm and having an axis coinciding with the rotation axis of the second swing arm, and a first universal joint and a second universal joint directly or indirectly connect the first arm shaft and the second arm shaft to each other.
- the arm connection shaft rotates integrally with the first swing arm and the second swing arm to synchron
- the plug door device may further include a third arm shaft which connects the first arm shaft and the second arm shaft to each other.
- the first universal joint may connect the first arm shaft and the third arm shaft
- the second universal joint may connect the second arm shaft and the third arm shaft.
- At least one of the first universal joint 44 and the second universal joint 45 may be omitted from the arm connection shaft 40.
- the third arm shaft 43 is directly connected to each of the first arm shaft 41 and the second arm shaft 42.
- the plug door device may be implemented as follows.
- the plug door device includes a first swing arm and a second swing arm which are arranged spaced apart in a height direction of a door, a first pinion which is attached to a portion of the first swing arm separated from rotation axis of the first swing arm, a first rack which is attached to the door and meshes with the first pinion, a second pinion which is attached to a portion of the second swing arm separated from rotation axis of the second swing arm, a second rack which is attached to the door and meshes with the second pinion, and a pinion connection shaft which includes a first pinion shaft connected to the first pinion and having an axis coinciding with the rotation axis of the first pinion, a second pinion shaft connected to the second pinion and having an axis coinciding with the rotation axis of the second pinion, and a third universal joint and a fourth universal joint directly or indirectly connect the first pinion shaft and the second pinion shaft to each other.
- the pinion connection shaft rotates integrally with the first pinion and
- the plug door device may further include a third pinion shaft which connects the first pinion shaft and the second pinion shaft to each other, the third universal joint may connect the first pinion shaft and the third pinion shaft, and the fourth universal joint may connect the second pinion shaft and the third pinion shaft.
- the problem to be solved by the plug door device is to smoothly open and close the door.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Devices For Sliding Doors (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Special Wing (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Wing Frames And Configurations (AREA)
Description
- The present invention relates to a plug door device.
- A railway vehicle is provided with, for example, a plug door device. The plug door device opens and closes a door provided at an entrance of a vehicle body in the railway vehicle in a vehicle front-rear direction while moving the door in a vehicle width direction.
DE 21 05 658 A1 discloses a sliding door which could be converted into a flap door or a pivot door. A shaft and a part are referred to as a "pivot arm" or a "pivot axis". The shaft comprises gears, and the part are parallel, but may have a small inclination between each other. In addition, the shaft and the part are connected together via pivot arms.EP 0 936 119 AJP H06-262945 A - An example of a plug door device including a stabilizer will now be described with reference to
Figs. 14 and15 . - As shown in
Fig. 14 , aplug door device 300 includes a feed screwtype drive unit 310 serving as a drive source which opens and closes asingle panel door 400, astabilizer 320 which is provided to connect an upper portion and a lower portion of thedoor 400 to each other, and a rack andpinion mechanism 330 which guides the movement of thedoor 400 in a vehicle front-rear direction. - The
stabilizer 320 includes anupper swing arm 321 which is arranged on the upper portion of thedoor 400 and rotated in accordance with the movement of thedoor 400 in the vehicle width direction, alower swing arm 322 which is arranged on the lower portion of thedoor 400 and rotated in accordance with the movement of thedoor 400 in the vehicle width direction, and aconnection shaft 323 which connects theupper swing arm 321 and thelower swing arm 322 to each other. An upper portion of theconnection shaft 323 is inserted into a distal end portion of theupper swing arm 321, and a lower portion of theconnection shaft 323 is inserted into a distal end portion of thelower swing arm 322. In this way, the distal end portion of theupper swing arm 321 and the distal end portion of thelower swing arm 322 are connected to each other by theconnection shaft 323. Thus, when thedoor 400 moves in the vehicle width direction, theupper swing arm 321 and thelower swing arm 322 rotate synchronously. Accordingly, the upper portion and the lower portion of thedoor 400 move synchronously in the vehicle width direction. - The rack and
pinion mechanism 330 includes an upper rack 331 which is provided on the upper portion of thedoor 400, anupper pinion 332 which is provided on the distal end of theupper swing arm 321, alower rack 333 which is provided on the lower portion of thedoor 400, and alower pinion 334 which is provided on the distal end of thelower swing arm 322. The upper rack 331 and thelower rack 333 have the same construction, and theupper pinion 332 and thelower pinion 334 have the same construction. In addition, theupper pinion 332 is attached to an upper end portion of theconnection shaft 323 protruding upward from theupper swing arm 321, and thelower pinion 334 is attached to a lower end portion of theconnection shaft 323 protruding downward from thelower swing arm 322. That is, theconnection shaft 323 is connected to theupper pinion 332 and thelower pinion 334. According to this construction, when thedoor 400 moves in the vehicle front-rear direction, rotation of theupper pinion 332 is transmitted to thelower pinion 334 via theconnection shaft 323. Thus, theupper pinion 332 and thelower pinion 334 rotate synchronously. The upper rack 331 and theupper pinion 332 respectively mesh with thelower rack 333 and thelower pinion 334 in the same manner. This synchronously moves the upper portion and the lower portion of thedoor 400 in the vehicle front-rear direction. - As shown in
Fig. 15 , thedoor 400 is inclined relative to the vertical direction, and the lower portion of thedoor 400 is curved. Accordingly, the position of theupper swing arm 321 of thestabilizer 320 in the vehicle width direction is separated from the position of thelower swing arm 322 in the vehicle width direction. Therefore, rotation axis of theupper swing arm 321 and rotation axis of thelower swing arm 322 are inclined relative to the vertical direction so as to be located outward in the vehicle width direction at lower positions. - Referring to
Fig. 15 , when thedoor 400 moves outward in the vehicle width direction, theupper swing arm 321 and thelower swing arm 322 need to pull thedoor 400.
Therefore, the weight of thedoor 400 acts as a resistance against the rotations of theupper swing arm 321 and thelower swing arm 322. This may hinder smooth opening of thedoor 400. - This problem is not limited to a single panel door and may also occur with a double panel door. Moreover, in a case where the rotation axis of the upper swing arm and the rotation axis of the lower swing arm are inclined relative to the vertical direction so as to be located inward in the vehicle width direction at lower positions, when each swing arm is rotated to move the door to a fully closed position, the weight of the door acts as a resistance on each swing arm. This may hinder smooth closing of the door.
- It is an object of the present invention to provide a plug door device that smoothly opens and closes a door.
- [1] A plug door device according to the present invention includes a first swing arm, a second swing arm spaced apart from the first swing arm in a height direction when mounted on a door, a first pinion attached to a portion of the first swing arm separated from a rotation axis of the first swing arm, a first rack attachable to the door and meshed with the first pinion, a second pinion attached to a portion of the second swing arm separated from a rotation axis of the second swing arm, a second rack attachable to the door and meshed with the second pinion, an arm connection shaft, and a pinion connection shaft. The arm connection shaft includes a first arm shaft connected to the first swing arm and having an axis coinciding with the rotation axis of the first swing arm, a second arm shaft connected to the second swing arm and having an axis coinciding with the rotation axis of the second swing arm, and a third arm shaft connecting the first arm shaft and the second arm shaft. The arm connection shaft rotates integrally with the first swing arm and the second swing arm to synchronize rotation of the first swing arm and rotation of the second swing arm. The pinion connection shaft includes a first pinion shaft connected to the first pinion and having an axis coinciding with a rotation axis of the first pinion, a second pinion shaft connected to the second pinion and having an axis coinciding with a rotation axis of the second pinion, and a third pinion shaft connecting the first pinion shaft and the second pinion shaft. The pinion connection shaft rotates integrally with the first pinion and the second pinion to synchronize rotation of the first pinion and rotation of the second pinion. The arm connection shaft includes a first universal joint, which connects the first arm shaft and the third arm shaft, and a second universal joint, which connects the second arm shaft and the third arm shaft. The pinion connection shaft includes a third universal joint, which connects the first pinion shaft and the third pinion shaft, and a fourth universal joint, which connects the second pinion shaft and the third pinion shaft.
- According to this construction, by inclining the third arm shaft relative to the first arm shaft and the second arm shaft with the first universal joint and the second universal joint, axial directions of the first arm shaft and the second arm shaft are adjustable in the vertical direction. Accordingly, for example, even in a case where the door has a curved shape and the position of the first swing arm in the vehicle width direction is thereby separated from the position of the second swing arm in the vehicle width direction, it is possible to prevent the rotation axes of the first swing arm and the second swing arm from being inclined relative to the vertical direction by inclining the third arm shaft relative to the vertical direction. Thus, the weight of the door does not act as a resistance when the first swing arm and the second swing arm rotate. This enables smooth movement of the door in the vehicle width direction.
- In a case where an axial direction of the first pinion shaft is inclined relative to the vertical direction, if the position of the first pinion in the vertical direction with respect to the first rack were to be separated from a preset position due to machining errors or assembly errors of the first rack and the first pinion, the teeth of the first pinion would be meshed with the teeth of the first rack at an inappropriate position in a direction in which the first pinion and the first rack face each other. As a result, the meshing force between the first rack and the first pinion would be excessively large or small, and the first pinion will not rotate smoothly on the first rack. Similarly, in a case where an axial direction of the second pinion shaft is inclined relative to the vertical direction, the second pinion will not rotate smoothly on the second rack.
- In this regard, according to the plug door device, the third universal joint and the fourth universal joint incline the third pinion shaft relative to the first pinion shaft and the second pinion shaft to adjust the axial directions of the first pinion shaft and the second pinion shaft relative to the vertical direction. Accordingly, even when the position of the first pinion in the vertical direction with respect to the first rack differs from the preset position due to machining errors or assembly errors of the first rack and the first pinion, the teeth of the first pinion are meshed with the teeth of the first rack at an appropriate position in the direction in which the first pinion and the first rack face each other. Thus, the first pinion is meshed with the first rack with an appropriate force. Similarly, the second pinion is meshed with the second rack with an appropriate force. As a result, for example, even in a case where the door has a curved shape and the position of the first pinion in the vehicle width direction is thereby separated from the position of the second pinion in the vehicle width direction, the first pinion smoothly rotates smoothly on the first rack and the second pinion rotates smoothly on the second rack. Thus, the door smoothly opens and closes.
- [2] The plug door device according to another aspect of the present invention further includes an arm adjustment mechanism, which is configured to adjust the distance between the first swing arm and the second swing arm, and a pinion adjustment mechanism, which is configured to adjust the distance between the first pinion and the second pinion.
- According to this construction, the arm adjustment mechanism adjusts the distance between the first swing arm and the second swing arm to adjust the position of the first swing arm and the position of the second swing arm in correspondence with the position of the door relative to the vehicle body.
- When the position of the door relative to the vehicle body is changed, the positions of the first rack and the second rack, which are attached to the door, relative to the vehicle body are changed. Accordingly, the pinion adjustment mechanism changes the distance between the first pinion and the second pinion to arrange the first pinion at a position at which the first pinion meshes with the first rack and arrange the second pinion at a position at which the second pinion meshes with the second rack.
- [3] In the plug door device according to another aspect of the present invention, the arm adjustment mechanism includes a first male threaded portion, which is provided on the first arm shaft, and a first nut, which is fastened to the first male threaded portion. The first nut is configured to change the position of the first swing arm by moving in an axial direction of the first male threaded portion.
- This construction changes the distance between the first swing arm and the second swing arm in accordance with the fastened amount of the first nut. Therefore, the distance between the first swing arm and the second swing arm is adjusted in a stepless manner.
- [4] In the plug door device according to another aspect of the present invention, the pinion adjustment mechanism includes a second male threaded portion, which is provided on the second pinion shaft, and a second nut, which is fastened to the second male threaded portion. The second nut is configured to change the position of the second pinion by moving in an axial direction of the second male threaded portion.
- This construction changes the distance between the first pinion and the second pinion in accordance with the fastened amount of the second nut. Therefore, the distance between the first pinion and the second pinion is adjusted in a stepless manner.
- [5] In the plug door device according to another aspect of the present invention, at least one of the first arm shaft and the first pinion shaft includes a first connection shaft and a second connection shaft, which are separately formed, and a connection member connected to the first connection shaft to be non-rotatable to the first connection shaft and movable relative to the first connection shaft and connected to the second connection shaft to be non-rotatable to the second connection shaft and non-movable relative to the second connection shaft.
- This construction restricts relative rotation between the first connection shaft and the second connection shaft allows the axial length of the first arm shaft (first pinion shaft) to be easily changed.
- [6] The plug door device according to another aspect of the present invention further includes an attachment member configured to attach the first arm shaft to a vehicle body. The attachment member is configured to be attached to a fixing member provided on the vehicle body and including a first vertical serration extending in the vertical direction. The attachment member includes a second vertical serration configured to be meshed with the first vertical serration.
- According to this construction, the second vertical serration of the attachment member meshes with the first vertical serration of the fixing member. This restricts inclination of the attachment member relative to the fixing member. Accordingly, the arm connection shaft inserted into the attachment member is not inclined relative to the fixing member. This further restricts inclination of the rotation axes of the first swing arm and the second swing arm relative to the vertical direction.
- [7] In the plug door device according to another aspect of the present invention, the first pinion and the first rack are arranged on an upper portion of the door. The second pinion and the second rack are arranged on a lower portion of the door.
- For example, if a rack and pinion mechanism were to be located at the middle of the door in the height direction, this would lower the aesthetic appearance of the door. In this regard, the above aspect [7] does not arrange the rack and pinion mechanism at the middle of the door and thereby improves the aesthetic appearance of the door.
- The plug door device according to the present invention smoothly opens and closes the door.
- Other aspects and advantages of the invention will become apparent from the following description, taken in conjunction with the accompanying drawings, illustrating by way of example the principles of the invention.
- The invention, together with objects and advantages thereof, may best be understood by reference to the following description of the presently preferred embodiments together with the accompanying drawings in which:
-
Fig. 1(a) is a front view of a plug door device of one embodiment; -
Fig. 1(b) is an enlarged view of a door hanger; -
Fig. 2(a) is a plan view of a rail mechanism of the plug door device ofFig. 1 (a) when a door is located at a fully closed position; -
Fig. 2(b) is a plan view of the rail mechanism when the door is located at a fully open position; -
Fig. 3(a) is a side view of the plug door device when the door is located at the fully closed position; -
Fig. 3(b) is a side view of the plug door device when the door is located at the fully open position; -
Fig. 4(a) is a plan view of an upper swing arm and surroundings thereof; -
Fig. 4(b) is a front view of the upper swing arm and surroundings thereof; -
Fig. 4(c) is a side view of a support arm; -
Fig. 4(d) is a side view showing the relationship between the door and an upper pinion and surroundings thereof; -
Fig. 5 is a cross-sectional view taken along line 5-5 inFig. 4(a) ; -
Fig. 6 is an exploded perspective view showing an attachment structure for an attachment member and an upper fixing member; -
Fig. 7 is a partial front view showing an arm connection shaft and a pinion connection shaft; -
Fig. 8(a) is a plan view of a lower swing arm and surroundings thereof; -
Fig. 8(b) is a front view of the lower swing arm and surroundings thereof; -
Fig. 8(c) is a side view showing the relationship between the door and a lower pinion and surroundings thereof; -
Fig. 9 is a cross-sectional view taken along line 9-9 inFig. 8(a) ; -
Fig. 10(a) is a plan view showing the relationship between the upper swing arm and the door; -
Fig. 10(b) is a plan view showing the relationship between the lower swing arm and the door; -
Fig. 10(c) is a plan view showing the relationship between a rolling body of the door and a rail of a vehicle body; -
Fig. 11(a) is a plan view showing the relationship between an upper retracting device and the door; -
Fig. 11(b) is a plan view showing the relationship between a lower retracting device and the door; -
Fig. 12(a) is a side view of a lock cylinder and the lower swing arm when the lock cylinder is locked; -
Fig. 12(b) is a side view of the lock cylinder and the lower swing arm when the lock cylinder is unlocked; -
Fig. 13 is a flowchart showing the procedure for attaching the plug door device; -
Fig. 14 is a front view of a conventional plug door device; and -
Fig. 15 is a side view of the plug door device ofFig. 14 . - One embodiment of a plug door device will now be described with reference to the drawings.
- As shown in
Fig. 1(a) , aplug door device 1 opens and closes double-slide doors vehicle body 210 of arailway vehicle 200. In a lower end portion of each of thedoors bodies 230 are provided at two locations spaced apart in a front-rear direction (hereinafter, referred to as a "front-rear direction ZA") of thevehicle 200. The number of rollingbodies 230 can be arbitrarily set. Each rollingbody 230 is slidably housed in arail 231 which is provided in thevehicle body 210. As shown by two-dot chain lines ofFigs. 3(a) and 3(b) , the door 200R has a shape in which a lower portion of thedoor 220R is bent toward an inside of thevehicle 200 in a vehicle width direction (hereinafter, referred to as a "the vehicle width direction ZB") of thevehicle 200. Thedoor 220L is similar to thedoor 220R in construction and shape. In addition, theplug door device 1 can be applied to a cantilever door. - As shown in
Fig. 1(a) , theplug door device 1 includes adrive mechanism 10 serving as a drive source which opens and closes thedoors drive mechanism 10 is provided on an upper portion of thevehicle body 210. Thedrive mechanism 10 includes tworods drive cylinder 12 which moves therods rail mechanism 16 for guiding movements of thedoors mechanism 20 which moves therods drive mechanism 10, the tworods drive cylinder 12. - The two
rods door hanger 15R is connected to therod 11R by aconnection member 13R and aslide member 14R. Adoor hanger 15L is connected to therod 11L by aconnection member 13L and aslide member 14L. - The
connection member 13R connects therod 11R and theslide member 14R. Theslide member 14R extends in the front-rear direction ZA. As shown inFig. 1(b) , thedoor hanger 15R is attached rotatably about arotary shaft 15A, which is located at a position on theslide member 14R separated from theconnection member 13R (refer toFig. 1(a) ) in the front-rear direction ZA. Thedoor hanger 15R includes anarm 15B which is supported by therotary shaft 15A, anattachment portion 15C which is attached to thedoor 220R and horizontally movable in the vehicle width direction ZB, and aconnection portion 15D which is rotatably connected to thearm 15B and pivotally connected to theattachment portion 15C. For example, theattachment portion 15C is attached to thedoor 220R by a bolt (not shown). Anelongated hole 15E into which the bolt is inserted is formed in theattachment portion 15C. In theelongated hole 15E, a height direction (hereinafter, referred to as a "height direction ZC") of thevehicle 200 is a longitudinal direction of theelongated hole 15E. In the present embodiment, the height direction ZC coincides with the vertical direction. A rollingbody 15F which is rotatable around rotation axis along the height direction ZC is attached to an upper surface of theattachment portion 15C. Moreover, theconnection member 13L, theslide member 14L, and thedoor hanger 15L are respectively similar in construction to theconnection member 13R, theslide member 14R, and thedoor hanger 15R. - As shown in
Fig. 1(a) , therail mechanism 16 includes asupport member 17 which is attached to thevehicle body 210. A length of thesupport member 17 in the front-rear direction ZA is greater than a width of anentrance 211 in the front-rear direction ZA. Linearfirst rails support member 17, andsecond rails support member 17. - The
first rails support member 17. Theslide member 14R is movably attached to thefirst rail 18R in the front-rear direction ZA, and theslide member 14L is movably attached to thefirst rail 18L in the front-rear direction ZA. - The
second rails Figs. 3(a) and 3(b) ). As shown inFigs. 2(a) and 2(b) , each of thesecond rails inclined portion 19A, which is inclined to be bent outward in the vehicle width direction ZB from the center of theentrance 211 toward an end of theentrance 211 in the front-rear direction ZA, and alinear portion 19B, which extends in the front-rear direction ZA from an end of theinclined portion 19A in the front-rear direction ZA. In thesecond rail 19R, the rollingbody 15F of thedoor hanger 15R is slidably accommodated in thesecond rail 19R. In thesecond rail 19L, the rollingbody 15F of thedoor hanger 15L is slidably accommodated in thesecond rail 19L. - The pulling
mechanism 20 is arranged between the tworods mechanism 20 includes pinion teeth (not shown) that mesh with rack teeth (not shown) which are provided on the tworods mechanism 20, as therod 11R is moved by thedrive cylinder 12, the pinion teeth meshed with the rack teeth of therod 11R rotate, and therod 11L meshed with the pinion teeth moves in a direction opposite to the movement direction of therod 11R. - As shown in
Fig. 1(a) , theplug door device 1 includesstabilizers doors doors stabilizers entrance 211 in the front-rear direction ZA. - The
stabilizer 30R includes anupper swing arm 31 which is an example of a first swing arm arranged on an upper portion of thedoor 220R, alower swing arm 32 which is an example of a second swing arm arranged on a lower portion of thedoor 220R, and anarm connection shaft 40 which connects theupper swing arm 31 and thelower swing arm 32 to each other. In addition, thestabilizer 30R includes anupper pinion 33 which is an example of a first pinion provided on theupper swing arm 31, alower pinion 34 which is an example of a second pinion provided on thelower swing arm 32, and apinion connection shaft 50 which connects theupper pinion 33 and thelower pinion 34 to each other. - The
arm connection shaft 40 includes afirst arm shaft 41 connected to theupper swing arm 31 and having an axis coinciding with the rotation axis of theupper swing arm 31, asecond arm shaft 42 connected to thelower swing arm 32 and having an axis coinciding with the rotation axis of thelower swing arm 32, and athird arm shaft 43 connecting thefirst arm shaft 41 and thesecond arm shaft 42. Further, thearm connection shaft 40 includes a first universal joint 44 which connects thefirst arm shaft 41 and thethird arm shaft 43 so as to be integrally rotatable with each other, and a second universal joint 45 which connects thesecond arm shaft 42 and thethird arm shaft 43 so as to be integrally rotatable with each other. An example of each of the firstuniversal joint 44 and the seconduniversal joint 45 is a Cardan joint. Each of the firstuniversal joint 44 and the seconduniversal joint 45 may be a Rzeppa joint or a constant velocity joint instead of the Cardan joint. - As shown in
Figs. 3(a) and 3(b) , thefirst arm shaft 41 includes afirst connection shaft 41A which is connected to the firstuniversal joint 44 and asecond connection shaft 41B which is connected to an upper end portion of thefirst connection shaft 41A. Thefirst connection shaft 41A and thesecond connection shaft 41B are integrally rotatable. In this way, thefirst arm shaft 41, thesecond arm shaft 42, and thethird arm shaft 43 are integrally rotatable. Thearm connection shaft 40 thereby synchronizes the rotation of theupper swing arm 31 and the rotation of thelower swing arm 32. - The
upper swing arm 31 and thelower swing arm 32 are attached to thedoor 220R in conformance with the shape of thedoor 220R. Accordingly, thelower swing arm 32 is arranged inside theupper swing arm 31 in the vehicle width direction ZB. Thefirst arm shaft 41 and thesecond arm shaft 42 extend in the height direction ZC (vertical direction). Thethird arm shaft 43 can be inclined toward thefirst arm shaft 41 by the firstuniversal joint 44 and inclined toward thesecond arm shaft 42 by the seconduniversal joint 45. Further, thethird arm shaft 43 is inclined so as to be located outward in the vehicle width direction ZB at upper positions. - As shown in
Fig. 3(b) , theupper pinion 33 is attached to a portion of theupper swing arm 31 which is separated from the rotation axis of theupper swing arm 31, for example, a distal end portion of theupper swing arm 31. As shown inFig. 1(a) , anupper rack 35 extending in the front-rear direction ZA is attached to an upper portion of thedoor 220R facing theupper pinion 33 in the vehicle width direction ZB. Theupper pinion 33 and theupper rack 35 mesh with each other. - As shown in
Fig. 3(b) , thelower pinion 34 is attached to a portion of thelower swing arm 32 which is separated from the rotation axis of thelower swing arm 32, for example, a distal end portion of thelower swing arm 32. As shown inFig. 1(a) , alower rack 36 extending in the front-rear direction ZA is attached to a lower portion of thedoor 220R facing thelower pinion 34 in the vehicle width direction ZB. Thelower pinion 34 and thelower rack 36 mesh with each other. In addition, theupper pinion 33 and thelower pinion 34 have the same number of teeth and the same shape, and theupper rack 35 and thelower rack 36 have the same number of teeth and the same shape. - The
pinion connection shaft 50 includes afirst pinion shaft 51 connected to theupper pinion 33 and having an axis coinciding with the rotation axis of theupper pinion 33, asecond pinion shaft 52 connected to thelower pinion 34 and having an axis coinciding with the rotation axis of thelower pinion 34, and athird pinion shaft 53 connecting thefirst pinion shaft 51 and thesecond pinion shaft 52. Moreover, thepinion connection shaft 50 includes a thirduniversal joint 54, which connects thefirst pinion shaft 51 and thethird pinion shaft 53 in an integrally rotatable manner, and a fourthuniversal joint 55, which connects thesecond pinion shaft 52 and thethird pinion shaft 53 in an integrally rotatable manner. An example of each of the thirduniversal joint 54 and the fourthuniversal joint 55 is a Cardan joint. Each of the thirduniversal joint 54 and the fourth universal joint 55 may be a Rzeppa joint or a constant velocity joint instead of the Cardan joint. - As shown in
Fig. 3(b) , thefirst pinion shaft 51 includes afirst connection shaft 51A, which is connected to the thirduniversal joint 54, and asecond connection shaft 51B, which is connected to an upper end portion of thefirst connection shaft 51A. Thefirst connection shaft 51A and thesecond connection shaft 51B are integrally rotatable. In this way, thefirst pinion shaft 51, thesecond pinion shaft 52, and thethird pinion shaft 53 are integrally rotatable. Thus, thepinion connection shaft 50 synchronizes the rotation of theupper pinion 33 and the rotation of thelower pinion 34. - As shown in
Figs. 1(b) ,3(a), and 3(b) , theplug door device 1 includes retractingdevices pinion connection shafts 50 of thestabilizers plug door device 1 includeslock cylinders cylinder 23L not shown inFigs. 3(a) and 3(b) , refer toFigs. 12(a) and 12(b) ) which restrict rotation about the rotation axis of thelower swing arm 32 of thestabilizers retracting devices vehicle body 210 above theupper pinion 33 and theupper rack 35. Theretracting devices vehicle body 210 below thelower pinion 34 and thelower rack 36. Theretracting devices arms 21A for retracting the upper end portions of thepinion connection shafts 50 of thestabilizers retracting devices arms 22A for retracting the lower end portions of thepinion connection shafts 50 of thestabilizers - The
stabilizer 30R will now be described in detail with reference toFigs. 1(a), 1(b) , and4(a) to 11(b) . Thestabilizer 30L has the same construction as thestabilizer 30R. -
Figs. 4(a) to 4(d) and5 show the upper portion of thestabilizer 30R, particularly, theupper swing arm 31 and surroundings thereof. - As shown in
Fig. 4(b) , theupper swing arm 31 includes anarm support portion 31A which supports thefirst arm shaft 41 of thearm connection shaft 40 in a non-rotatable manner, apinion support portion 31B which supports thefirst pinion shaft 51 of thepinion connection shaft 50 in a rotatable manner, and aconnection portion 31C which connects thearm support portion 31A and thepinion support portion 31B. Thearm support portion 31A is tubular and has aninsertion hole 31D (refer toFig. 5 ) into which thefirst arm shaft 41 can be inserted, and thepinion support portion 31B is tubular and has aninsertion hole 31E (refer toFig. 5 ) into which thefirst pinion shaft 51 can be inserted. The dimension of thepinion support portion 31B in the height direction ZC is larger than the dimension of thearm support portion 31A in the height direction ZC. - The
second connection shaft 51B of thefirst pinion shaft 51 projects toward two opposite sides in the height direction ZC with from thepinion support portion 31B. Theupper pinion 33 is attached to a portion of thesecond connection shaft 51B above thepinion support portion 31B in a non-rotatable manner. Asupport arm 60 is attached to a portion of thesecond connection shaft 51B between thepinion support portion 31B and theupper pinion 33 in the height direction ZC. - As shown in
Fig. 4(a) , thesupport arm 60 extends in a direction orthogonal to thesecond connection shaft 51B. Two first rollingbodies 61, which are arranged spaced apart in the front-rear direction ZA, and asecond rolling body 62, which is arranged between the two first rollingbodies 61, are attached to a distal end portion of thesupport arm 60. The two first rollingbodies 61 are each rotatable about its rotation axis in a direction extending in the height direction ZC, and the second rollingbody 62 is rotatable about its rotation axis in a direction orthogonal to the height direction ZC. As shown inFig. 4(c) , an upper end portion of the second rollingbody 62 is located above upper end portions of the two first rollingbodies 61. As shown inFig. 4(d) , the two first rollingbodies 61 and the second rollingbody 62 are accommodated in anupper rail 221 which is provided on a rear side (the outside in the vehicle width direction ZB) of theupper rack 35 of thedoor 220R. Theupper rail 221 extends in the front-rear direction ZA and is open downward. The two first rollingbodies 61, which is in contact with one of the two side walls of theupper rail 221 in the vehicle width direction ZB, and the second rollingbody 62, which is in contact with an upper wall of theupper rail 221, supports thedoor 220R, - As shown in
Fig. 5 , thesecond connection shaft 51B of thefirst pinion shaft 51 is supported by a first rolling bearing 63 and a second rolling bearing 64 to be rotatable relative to theupper swing arm 31. The first rolling bearing 63 is a bearing integrally combining a thrust bearing 63A and aradial bearing 63B. The thrust bearing 63A is arranged on an upper surface of thepinion support portion 31B, and theradial bearing 63B is arranged in an upper end portion of theinsertion hole 31E of thepinion support portion 31B. The second rolling bearing 64 is attached to a lower end portion of theinsertion hole 31E of thepinion support portion 31B. Thesupport arm 60 is supported by a third rolling bearing 65 to be rotatable about thefirst pinion shaft 51. Thesupport arm 60 is supported by the thrust bearing 63A of the first rolling bearing 63 in the height direction ZC. The thrust bearing 63A and theradial bearing 63B may be formed separately in the first rollingbearing 63. The thrust bearing 63A, theradial bearing 63B, the second rolling bearing 64, and the third rolling bearing 65 may each be a ball bearing or a roller bearing. - As shown in
Fig. 4(b) , the portion of thesecond connection shaft 41B of thefirst arm shaft 41 below thearm support portion 31A of theupper swing arm 31 is inserted into anattachment member 66 to attach thestabilizer 30R to thevehicle body 210. The portion of thesecond connection shaft 41B above the portion inserted into theattachment member 66 includes anattachment shaft 41C, to which thearm support portion 31A is attached, and a first male threadedportion 41D, which is located below theattachment shaft 41C and has a larger diameter than that of theattachment shaft 41C. Thearm support portion 31A is located between anut 69, which is attached to theattachment shaft 41C, and an upper end surface of the first male threadedportion 41D in the height direction ZC thereby connecting theupper swing arm 31 to thefirst arm shaft 41. - The
attachment member 66 includes aninsertion portion 66A, which has aninsertion hole 66C (refer toFig. 5 ) that receives thefirst connection shaft 41A is inserted, and a plate-shapedattachment portion 66B, which extends outward from theinsertion portion 66A. Theattachment member 66 is fixed to anupper fixing member 212R, which is fixed to the upper portion of thevehicle body 210, by bolts B inserted into twoelongated holes 66D, which are formed in theattachment portion 66B and elongated in the vehicle width direction ZB. This allows for adjustment of the position of theattachment member 66 relative to the upper fixingmember 212R in the vehicle width direction ZB. - As shown in
Fig. 5 , thesecond connection shaft 41B of thefirst arm shaft 41 is supported by a fourth rolling bearing 67 and a fifth rolling bearing 68 to be relative to theattachment member 66. The fourth rolling bearing 67 is a bearing integrally combining a thrust bearing 67A and a radial bearing 67B. The thrust bearing 67A is arranged on an upper surface of theinsertion portion 66A, and the radial bearing 67B is arranged in an upper end portion of theinsertion hole 66C of theinsertion portion 66A. The fifth rolling bearing 68 is attached to a lower end portion of theinsertion hole 66C of theinsertion portion 66A. The thrust bearing 67A and the radial bearing 67B may be separately formed in the fourth rollingbearing 67. The thrust bearing 67A, the radial bearing 67B, and the fifth rolling bearing 68 may each be a ball bearing or a roller bearing. - As shown in
Fig. 6 , the upper fixingmember 212R includes twoholes 212A into which the bolts B are inserted. Theupper fixing member 212R includes a plurality of firstvertical serrations 212B extending in the vertical direction and formed on the portion of the upper fixingmember 212R facing theattachment portion 66B. - The portion of the
attachment portion 66B facing the upper fixingmember 212R includes a plurality of second vertical serrations 66E extending in the vertical direction. The second vertical serrations 66E are meshed with the firstvertical serrations 212B. - As shown in
Figs. 4(b) and7 , thestabilizer 30R includes anarm adjustment mechanism 70 which is configured to adjust the distance between theupper swing arm 31 and the lower swing arm 32 (refer toFigs. 3(a) and 3(b) ). As shown inFig. 4(b) , thearm adjustment mechanism 70 includes a first male threadedportion 41D which is provided on thesecond connection shaft 41B of thefirst arm shaft 41, afirst nut 71 which is fastened to first male threadedportion 41D, and alock nut 72 which restricts rotation of thefirst nut 71 relative to the first male threadedportion 41D. - As shown in
Fig. 7 , thearm adjustment mechanism 70 includes alength adjustment unit 73 which adjusts an axial length of thefirst arm shaft 41. Thelength adjustment unit 73 includes acylindrical connection member 46 which connects thefirst connection shaft 41A and thesecond connection shaft 41B of thefirst arm shaft 41 to each other. Thesecond connection shaft 41B is connected to an upper end portion of theconnection member 46 to restrict rotation of thesecond connection shaft 41B and axial movement of thesecond connection shaft 41B. In addition, thefirst connection shaft 41A is connected to a lower portion of theconnection member 46 to restrict rotation of thefirst connection shaft 41A and axial movement of thefirst connection shaft 41A. Specifically, splines 41E are formed on thefirst connection shaft 41A, and splines (not shown) meshed with thesplines 41E are formed on an inner circumferential portion of theconnection member 46. In addition, thefirst connection shaft 51A of thefirst pinion shaft 51 and thethird pinion shaft 53 are similar in construction to thefirst connection shaft 41A of thefirst arm shaft 41 and thethird arm shaft 43. Accordingly, inFig. 7 , reference numerals of parts related to thepinion connection shaft 50 are included in parentheses. -
Figs. 8(a) to 8(c) and9 show a lower portion of thestabilizer 30R, particularly, thelower swing arm 32 and surroundings thereof. - As shown in
Fig. 8(b) , thelower swing arm 32 includes anarm support portion 32A which supports thesecond arm shaft 42 of thearm connection shaft 40 in a non-rotatable manner, apinion support portion 32B which rotatably supports thesecond pinion shaft 52 of thepinion connection shaft 50, and aconnection portion 32C which connects thearm support portion 32A and thepinion support portion 32B. Thearm support portion 32A is tubular and has aninsertion hole 32D (refer toFig. 9 ), which receives thethird arm shaft 43, and thepinion support portion 32B, which is tubular and has aninsertion hole 32E (refer toFig. 9 ) that receives thethird pinion shaft 53. A dimension of thepinion support portion 32B in the height direction ZC is larger than a dimension of thearm support portion 32A in the height direction ZC. As shown inFig. 8(a) , thepinion support portion 32B includes anextension portion 32F extending in the front-rear direction ZA. Theextension portion 32F includes ahole 32G into which alock pin 23A (refer toFigs. 12(a) and 12(b) ) of thelock cylinder 23R can be inserted. - As shown in
Fig. 8(b) , the portion of thesecond arm shaft 42 of thearm connection shaft 40 below thearm support portion 32A is inserted into theattachment member 66 to attach thestabilizer 30R to thevehicle body 210. For example, theattachment member 66 is fixed to alower fixing member 213R, which is fixed to the lower side of thevehicle body 210, by bolts B inserted into twoelongated holes 66D of theattachment portion 66B. Thelower fixing member 213R has the same structure as the upper fixingmember 212R. The portion of thelower fixing member 213R facing theattachment portion 66B includes a plurality of firstvertical serrations 213A extending in the vertical direction. Second vertical serrations 66E of theattachment portion 66B are meshed with the firstvertical serrations 213A. - As shown in
Fig. 9 , thesecond arm shaft 42 is supported by the first rolling bearing 82 and the second rolling bearing 83 to be rotatable relative to theattachment member 66. The first rolling bearing 82 is a bearing integrally combining a thrust bearing 82A and aradial bearing 82B. The thrust bearing 82A is arranged on the upper surface of theinsertion portion 66A, and theradial bearing 82B is arranged on the upper end portion of theinsertion hole 66C of theinsertion portion 66A. The second rolling bearing 83 is attached to the lower end portion of theinsertion hole 66C of theinsertion portion 66A. The thrust bearing 82A and theradial bearing 82B may be formed separately in the first rollingbearing 82. The thrust bearing 82A, theradial bearing 82B, and the second rolling bearing 83 may each be a ball bearing or a roller bearing. - As shown in
Fig. 8(b) , thesecond pinion shaft 52 projects toward two opposite sides in the height direction ZC from thepinion support portion 32B. Thelower pinion 34 is attached to the portion of thesecond pinion shaft 52 below thepinion support portion 32B in a non-rotatable manner. Asupport arm 80 is attached to the portion of thesecond pinion shaft 52 below thelower pinion 34. As shown inFig. 8(a) , thesupport arm 80 has substantially the same shape as thesupport arm 60. The rollingbodies 81 are attached to a distal end portion of thesupport arm 80 spaced apart in the front-rear direction ZA. The two rollingbodies 81 are rotatable about a rotation axis extending in the height direction ZC. As shown inFig. 8(c) , the two rollingbodies 81 are accommodated in alower rail 222 which is provided on a lower end portion of thedoor 220R. Thelower rail 222 extends in the front-rear direction ZA and is open downward. The two rollingbodies 81 are in contact with one of the two side walls of thelower rail 222 in the vehicle width direction ZB. - As shown in
Fig. 9 , thesecond pinion shaft 52 is supported by a third rolling bearing 84 and a fourth rolling bearing 85 so as to be rotatable about thelower swing arm 32. The third rolling bearing 84 is a bearing integrally combining the thrust bearing 84A and theradial bearing 84B. The thrust bearing 84A is arranged on an upper surface of thepinion support portion 32B, and theradial bearing 84B is arranged on the upper end portion of theinsertion hole 32E of thepinion support portion 32B. The fourth rolling bearing 85 is attached to a lower end portion of theinsertion hole 32E of thepinion support portion 32B. Thesupport arm 80 is supported by a fifth rolling bearing 86 to be rotatable relative to thesecond pinion shaft 52. The thrust bearing 84A and theradial bearing 84B may be separately formed in the third rolling bearing 84. The thrust bearing 84A, theradial bearing 84B, the fourth rolling bearing 85, and the fifth rolling bearing 86 may each be a ball bearing or a roller bearing. - As shown in
Fig. 8(b) , thestabilizer 30R includes apinion adjustment mechanism 90 which is configured to adjust the distance between theupper pinion 33 and the lower pinion 34 (refer toFig. 1(a) ). Thepinion adjustment mechanism 90 includes a second male threadedportion 52A which is provided on the portion of thesecond pinion shaft 52 above thepinion support portion 32B, asecond nut 91 which is fastened to the second male threadedportion 52A, and alock nut 92 which restricts rotation of thesecond nut 91 relative to the second male threadedportion 52A. - In addition, as shown in
Fig. 7 , thepinion adjustment mechanism 90 includes alength adjustment unit 93 which is configured to adjust the axial length of thefirst pinion shaft 51. In the same manner as theconnection member 46, thelength adjustment unit 93 includes aconnection member 56. Thelength adjustment unit 93, which is similar in construction to thelength adjustment unit 73 of thearm adjustment mechanism 70 includessplines 51E formed on thefirst connection shaft 51A of thefirst pinion shaft 51. - The adjustment of the
stabilizer 30R with thearm adjustment mechanism 70 and thepinion adjustment mechanism 90 will now be described. - As shown in
Fig. 4(b) , thearm adjustment mechanism 70 adjusts the position of theupper swing arm 31 in the height direction ZC by adjusting a fastened amount of thefirst nut 71 to change the position of thefirst connection shaft 41A relative to theattachment member 66 in the height direction ZC. This results in thelength adjustment unit 73 shown inFig. 7 adjusting the axial length of thefirst arm shaft 41. Thus, the position of the second arm shaft 42 (refer toFigs. 3(a) and 3(b) ) in the height direction ZC does not change. In this state, thelength adjustment unit 93 shown inFig. 7 adjusts the axial length of thefirst pinion shaft 51 in thepinion connection shaft 50. Thus, the position of the second pinion shaft 52 (refer toFigs. 3(a) and 3(b) ) in the height direction ZC does not change. Accordingly, thearm adjustment mechanism 70 adjusts the distance between theupper swing arm 31 and thelower swing arm 32 in the height direction ZC. - As shown in
Fig. 8(b) , thepinion adjustment mechanism 90 adjusts the position of thelower pinion 34 in the height direction ZC by adjusting a fastened amount of thesecond nut 91 to change the position of thefirst connection shaft 51A relative to theattachment member 66 in the height direction ZC. This results in thelength adjustment unit 93 shown inFig. 7 adjusting the axial length of thefirst pinion shaft 51 and thelength adjustment unit 73 adjusting the axial length of thefirst arm shaft 41. Thus, the positions of theupper pinion 33 and the upper swing arm 31 (refer toFigs. 3(a) and 3(b) ) in the height direction ZC do not change. Accordingly, thepinion adjustment mechanism 90 adjusts the distance between theupper pinion 33 and thelower pinion 34 in the height direction ZC. - The operation of the
plug door device 1 will now be described with reference toFigs. 1(a) to 3(b) and11(a) to 12(b) . The double-dashed lines inFigs. 10(a) and 10(b) show thedoors - First, the opening operation of the
doors - As shown in
Figs. 11(a) and 11(b) , when thedoors arms 21A (solid lines) of theretracting devices pinion connection shafts 50 inward in the vehicle width direction ZB, and thearms 22A (solid lines) of theretracting devices pinion connection shafts 50 inward in the vehicle width direction ZB. Accordingly, the distal end portions of theupper swing arm 31 and the lower swing arm 32 (refer toFigs. 10(a) and 10(b) ) are prevented from rotating outward in the vehicle width direction ZB. In addition, as shown inFig. 12(a) , when thedoors lock pin 23A of each of thelock cylinder hole 32G of thelower swing arm 32. This restricts rotation of thelower swing arm 32. - When a command signal for opening the
doors vehicle 200, thearms retracting devices pinion connection shafts 50 as shown inFigs. 11(a) and 11(b) . Further, as shown inFig. 12(b) , thelock pin 23A of each of thelock cylinders hole 32G of thelower swing arm 32. This allows theupper swing arm 31 and thelower swing arm 32 to rotate. - As shown in
Figs. 2(a) and3(a) , thedrive cylinder 12 is driven to move thedoors rods Fig. 1(a) , theslide members rods doors door hangers slide members - In this case, as shown in
Figs. 2(a) and 2(b) , the rollingbodies 15F move along theinclined portions 19A of thesecond rails Figs. 10(a) and 10(b) , this synchronously rotates theupper swing arms 31 and thelower swing arms 32 of thestabilizers upper pinions 33 and thelower pinions 34 of thestabilizers plug door device 1 is operated in this manner so that each of thedoors Fig. 10(c) , the two rollingbodies 230 on the lower end portion of each of thedoors inclined portions 231A of the rails 231 (double-dashed lines) on thevehicle body 210. - Further, when the rolling
body 15F moves along thelinear portion 19B of each of thesecond rails Figs. 2(a) and 2(b) , theupper pinion 33 and thelower pinion 34 rotate synchronously but theupper swing arm 31 and thelower swing arm 32 do not rotate as shown inFigs. 10(a) and 10(b) . Accordingly, thedoors Fig. 10(c) , the two rollingbodies 230 move along thelinear portions 231B of therails 231. - The closing operation of the
doors - As shown in
Fig. 2(b) ,10(a), and 10(b) , when thedoors plug door device 1 receives a command signal for closing thedoors drive cylinder 12 is controlled to move therods doors body 15F moves on thelinear portion 19B of each of thesecond rails body 15F moves on theinclined portion 19A. As the rollingbody 15F moves on thelinear portion 19B, theupper pinion 33 and thelower pinion 34 rotate synchronously. As the rollingbody 15F moves on theinclined portion 19A, theupper pinion 33 and thelower pinion 34 rotate synchronously and theupper swing arm 31 and thelower swing arm 32 rotate synchronously. As shown inFig. 10(c) , after the two rollingbodies 230 move on thelinear portions 231B of therails 231, the two rollingbodies 230 move on theinclined portions 231A. - When the
doors Figs. 11(a) and 11(b) , theretracting devices arms pinion connection shafts 50 inward in the vehicle width direction ZB. As shown inFig. 12(a) , thelock cylinders lock pin 23A is inserted into thehole 32G of the correspondinglower swing arm 32 thereby restricting rotation of thelower swing arm 32. - A method for attaching the
plug door device 1 to thevehicle 200 will now be described with reference toFig. 13 . In the following description, the elements of theplug door device 1 and thevehicle 200 will be denoted by reference numerals indicating the elements of theplug door device 1 and thevehicle 200 shown inFig. 1(a) to Fig. 9 . - The attachment method of the
plug door device 1 includes a device attachment process (step S1), a door temporary attachment process (step S2), a position adjustment process (step S3), and a door main attachment process (step S4). - In the device attachment process, the
drive mechanism 10 and thestabilizers vehicle body 210 before thedoors side attachment members 66 of thestabilizers vertical serrations 212B of the upper fixingmembers side attachment members 66 are meshed with the firstvertical serrations 213A of thelower fixing members - In the door temporary attachment process, the
upper rails 221 of thedoors bodies 62 of thesupport arms 60 of thestabilizers doors stabilizers upper rack 35, thelower rack 36, theupper rail 221, and thelower rail 222 are attached to thedoors - In the position adjustment process, the positions of the
upper swing arm 31, thelower swing arm 32, theupper pinion 33, thelower pinion 34, thesupport arm 60, and thesupport arm 80 in the height direction ZC are adjusted by thearm adjustment mechanism 70 and thepinion adjustment mechanism 90. Specifically, the position of theupper swing arm 31 in the height direction ZC relative to the upper-side attachment member 66 is changed with thearm adjustment mechanism 70 to adjust the positions of thedoors vehicle body 210. In a case where the adjustment displaces thelower pinion 34 in the height direction ZC relative to thelower rack 36 or displaces the rollingbody 81 of thesupport arm 80 in the height direction ZC relative to thelower rail 222, thepinion adjustment mechanism 90 changes the position of thelower swing arm 32 in the height direction ZC relative to the lower-side attachment member 66. Accordingly, the position of thelower pinion 34 is aligned with thelower rack 36 in the height direction ZC and the position of the rollingbody 81 is aligned with thelower rail 222 in the height direction ZC. - Finally, in the door main attachment process, the
doors door hangers elongated holes 15E into which the bolts of each of thedoor hangers doors vehicle body 210 are changed, a bolt fixing hole (not shown) provided in each of thedoors elongated hole 15E. - The
plug door device 1 of the present embodiment has the following advantages. - (1) The
arm connection shaft 40 inclines thethird arm shaft 43 relative to thefirst arm shaft 41 and thesecond arm shaft 42 with the firstuniversal joint 44 and the second universal joint 45 so that the axial directions of thefirst arm shaft 41 and thesecond arm shaft 42 extend in the vertical direction. By inclining thethird pinion shaft 53 relative to thefirst pinion shaft 51 and thesecond pinion shaft 52 with the thirduniversal joint 54 and the fourthuniversal joint 55, thepinion connection shaft 50 can synchronously connect thefirst pinion shaft 51 and thesecond pinion shaft 52. Accordingly, even in a case where the position of the upper swing arm 31 (upper pinion 33) in the vehicle width direction ZB is separated from the position of the lower swing arm 32 (lower pinion 34) in the vehicle width direction ZB, the rotation axes of theupper swing arm 31 and thelower swing arm 32 are not inclined relative to the vertical direction. Therefore, the weight of thedoors upper swing arm 31 and thelower swing arm 32. This allows thedoors - In a case where the axial direction of the
first pinion shaft 51 is inclined relative to the vertical direction, if the position of theupper pinion 33 in the vertical direction relative to theupper rack 35 differs from a preset position due to machining errors or assembly errors of theupper pinion 33 and theupper rack 35, the teeth of theupper pinion 33 are meshed with the teeth of theupper rack 35 at an inappropriate position in the direction (vehicle width direction ZB) in which theupper pinion 33 and theupper rack 35 face each other thereby causing the meshing force between theupper rack 35 and theupper pinion 33 to be excessively large or small. Thus, theupper pinion 33 will not rotate smoothly on theupper rack 35. In eh same manner, in a case where the axial direction of thesecond pinion shaft 52 is inclined relative to the vertical direction, thelower pinion 34 will not rotate smoothly on thelower rack 36. - In this regard, the
plug door device 1 of the present embodiment inclines thethird pinion shaft 53 relative to thefirst pinion shaft 51 and thesecond pinion shaft 52 with the thirduniversal joint 54 and the fourthuniversal joint 55. This adjusts the axial directions of thefirst pinion shaft 51 and thesecond pinion shaft 52 relative to the vertical direction. Accordingly, even when the position of theupper pinion 33 in the vertical direction relative to theupper rack 35 differs from the preset position due to machining errors or assembly errors of theupper pinion 33 and theupper rack 35, the position at which the teeth of theupper pinion 33 are meshed with the teeth of theupper rack 35 mesh with each other remain unchanged in the direction (vehicle width direction ZB) in which theupper pinion 33 and theupper rack 35 face each other. Accordingly, theupper pinion 33 and theupper rack 35 are meshed with each other with an appropriate force. Even when the position of thelower pinion 34 in the vertical direction with respect to thelower rack 36 differs from the preset position due to machining errors or assembly errors of thelower pinion 34 and thelower rack 36, thelower pinion 34 and thelower rack 36 are meshed with each other with an appropriate force. Accordingly, even in a case where the position of theupper pinion 33 in the vehicle width direction ZB is separated from the position of thelower pinion 34 in the vehicle width direction ZB, theupper pinion 33 rotates smoothly on theupper rack 35, and thelower pinion 34 rotates smoothly on thelower rack 36. Thus, thedoors - If the
arm connection shaft 40 were to be omitted from theplug door device 1, thepinion connection shaft 50 would need to transmit the rotation of one of theupper swing arm 31 and thelower swing arm 32 to the other one of theupper swing arm 31 and thelower swing arm 32. However, thethird arm shaft 43 would be rotated relative to thefirst arm shaft 41 and thesecond arm shaft 42 by theuniversal joints upper swing arm 31 and thelower swing arm 32 would not be appropriately transmitted to the other one of theupper swing arm 31 and thelower swing arm 32. Therefore, it would be difficult for thepinion connection shaft 50 to synchronize the rotations of theupper swing arm 31 and thelower swing arm 32. - In this regard, the
plug door device 1 of the present embodiment synchronizes the rotations of theupper swing arm 31 and thelower swing arm 32 with thearm connection shaft 40, which is separate from thepinion connection shaft 50 that synchronizes the rotation of theupper pinion 33 and thelower pinion 34. This properly synchronizes the rotations of theupper swing arm 31 and thelower swing arm 32 and the rotations of theupper pinion 33 and thelower pinion 34. - (2) The
arm adjustment mechanism 70 of thestabilizers upper swing arm 31 and thelower swing arm 32 and thereby adjusts the positions of thedoors vehicle body 210.
The positions of thedoors vehicle body 210, and the positions of thelower rack 36 attached to thedoors upper pinion 33 and thelower pinion 34 is changed with thepinion adjustment mechanism 90 so that thelower pinion 34 is located at the position at which thelower pinion 34 is meshed with thelower rack 36.
In a case where the distance between theupper rack 35 and thelower rack 36 differs between thedoors pinion adjustment mechanism 90 changes the distance between theupper pinion 33 and thelower pinion 34 to arrange thelower pinion 34 at the position where thelower pinion 34 is meshed with thelower rack 36. - (3) The distance between the
upper swing arm 31 and thelower swing arm 32 is changed in accordance with the fastened amount of thefirst nut 71 of thearm adjustment mechanism 70. This adjusts the distance between theupper swing arm 31 and thelower swing arm 32 in a stepless manner. - (4) The distance between the
upper pinion 33 and thelower pinion 34 is changed in accordance with the fastened amount of thesecond nut 91 of thepinion adjustment mechanism 90. This adjusts the distance between theupper pinion 33 and thelower pinion 34 in a stepless manner. - (5) The
connection member 46 of thearm connection shaft 40 and thefirst connection shaft 41A are spline-fitted to each other. This restricts relative rotation between thefirst connection shaft 41A and thesecond connection shaft 41B and allows the axial length of thefirst arm shaft 41 to be easily changed. Further, thepinion connection shaft 50 includes theconnection member 56 and obtains the same advantages as theconnection member 46. - (6) The second vertical serrations 66E of the
attachment member 66 are meshed with the firstvertical serrations 212B of each of the upper fixingmembers attachment member 66 relative to each of the upper fixingmembers arm connection shaft 40 inserted into theattachment member 66 is not inclined relative to each of the upper fixingmembers upper swing arm 31 relative to the vertical direction. In addition, the second vertical serrations 66E of theattachment member 66 are meshed with the firstvertical serrations 212B of each of thelower fixing members lower swing arm 32 relative to the vertical direction. - (7) The
upper pinion 33 and theupper rack 35 are arranged on the upper portion of each of thedoors lower pinion 34 and thelower rack 36 are arranged on the lower portion of each of thedoors doors - The description related with the above embodiment exemplifies, without any intention to limit, an applicable form of a plug door device according to the present invention. In addition to the embodiment described above, the plug door device according to the present invention is applicable to, for example, modified examples that are described below and combinations of at least two of the modified examples that do not contradict each other.
- The
third arm shaft 43 in thearm connection shaft 40 may be formed by a plurality of shafts and a universal joint which connects the shafts in an integrally rotatable manner. In other words, the number of universal joints of thearm connection shaft 40 may be three or more. - The
third pinion shaft 53 in thepinion connection shaft 50 may be formed by a plurality of shafts and a universal joint which connects the shafts in a integrally rotatable manner. In other words, the number of universal joints of thepinion connection shaft 50 may be three or more. - The
arm adjustment mechanism 70 and thepinion adjustment mechanism 90 may be omitted from at least one of thestabilizers - The first
vertical serrations 212B may be omitted from at least one of the upper fixingmembers attachment member 66 that is fixed to the upper fixing member from which the firstvertical serrations 212B are omitted. - In addition, the first
vertical serrations 213A may be omitted from at least one of thelower fixing members attachment member 66 that is fixed to the lower fixing member from which the firstvertical serrations 213A are omitted. - The
third arm shaft 43 may be omitted from thearm connection shaft 40. In this case, at least one of the firstuniversal joint 44 and the seconduniversal joint 45 extends toward the other of the firstuniversal joint 44 and the seconduniversal joint 45, and the firstuniversal joint 44 and the seconduniversal joint 45 are directly connected to each other. Accordingly, thefirst arm shaft 41 and thesecond arm shaft 42 are connected by only the firstuniversal joint 44 and the seconduniversal joint 45. In this case, at least one of the firstuniversal joint 44 and the seconduniversal joint 45 may have a shaft which replaces thethird arm shaft 43. For example, in a case where the firstuniversal joint 44 has a shaft extending toward the seconduniversal joint 45 and the seconduniversal joint 45 has no shaft, the shaft of the firstuniversal joint 44 is connected to the seconduniversal joint 45, and thus, the firstuniversal joint 44 and the seconduniversal joint 45 are directly connected to each other. In addition, in a case where both the firstuniversal joint 44 and the seconduniversal joint 45 have the shafts, the firstuniversal joint 44 and the seconduniversal joint 45 are directly connected to each other by connecting the shaft of the firstuniversal joint 44 and the shaft of the second universal joint 45 to each other. - The
third pinion shaft 53 may be omitted from thepinion connection shaft 50. In this case, at least one of the thirduniversal joint 54 and the fourthuniversal joint 55 extends toward the other of the thirduniversal joint 54 and the fourthuniversal joint 55, and the thirduniversal joint 54 and the fourth universal joint 55 are directly connected to each other. Accordingly, thefirst pinion shaft 51 and thesecond pinion shaft 52 are connected by only the thirduniversal joint 54 and the fourthuniversal joint 55. In this case, at least one of the thirduniversal joint 54 and the fourth universal joint 55 may have a shaft which replaces thethird pinion shaft 53. For example, in a case where the thirduniversal joint 54 has a shaft extending toward the fourthuniversal joint 55 and the fourthuniversal joint 55 has no shaft, the shaft of the thirduniversal joint 54 is connected to the fourthuniversal joint 55, and thus, the thirduniversal joint 54 and the fourth universal joint 55 are directly connected to each other. In addition, in a case where both the thirduniversal joint 54 and the fourth universal joint 55 have the shafts, the thirduniversal joint 54 and the fourth universal joint 55 are directly connected to each other by connecting the shaft of the thirduniversal joint 54 and the shaft of the fourth universal joint 55 to each other. - At least one of the third
universal joint 54 and the fourth universal joint 55 may be omitted from thepinion connection shaft 50. For example, in a case where both the thirduniversal joint 54 and the fourth universal joint 55 are omitted from thepinion connection shaft 50, thethird pinion shaft 53 is directly connected to each of thefirst pinion shaft 51 and thesecond pinion shaft 52. - In other words, the plug door device may be implemented as follows.
- The plug door device includes a first swing arm and a second swing arm which are arranged spaced apart in a height direction of a door, a first pinion which is attached to a portion of the first swing arm separated from rotation axis of the first swing arm, a first rack which is attached to the door and meshes with the first pinion, a second pinion which is attached to a portion of the second swing arm separated from rotation axis of the second swing arm, a second rack which is attached to the door and meshes with the second pinion, and an arm connection shaft which includes a first arm shaft connected to the first swing arm and having an axis coinciding with the rotation axis of the first swing arm, a second arm shaft connected to the second swing arm and having an axis coinciding with the rotation axis of the second swing arm, and a first universal joint and a second universal joint directly or indirectly connect the first arm shaft and the second arm shaft to each other. The arm connection shaft rotates integrally with the first swing arm and the second swing arm to synchronize rotation of the first swing arm and rotation of the second swing arm.
- In addition, the plug door device may further include a third arm shaft which connects the first arm shaft and the second arm shaft to each other. The first universal joint may connect the first arm shaft and the third arm shaft, and the second universal joint may connect the second arm shaft and the third arm shaft.
- At least one of the first
universal joint 44 and the seconduniversal joint 45 may be omitted from thearm connection shaft 40. For example, in a case where both the firstuniversal joint 44 and the seconduniversal joint 45 are omitted from thearm connection shaft 40, thethird arm shaft 43 is directly connected to each of thefirst arm shaft 41 and thesecond arm shaft 42. - In other words, the plug door device may be implemented as follows.
- The plug door device includes a first swing arm and a second swing arm which are arranged spaced apart in a height direction of a door, a first pinion which is attached to a portion of the first swing arm separated from rotation axis of the first swing arm, a first rack which is attached to the door and meshes with the first pinion, a second pinion which is attached to a portion of the second swing arm separated from rotation axis of the second swing arm, a second rack which is attached to the door and meshes with the second pinion, and a pinion connection shaft which includes a first pinion shaft connected to the first pinion and having an axis coinciding with the rotation axis of the first pinion, a second pinion shaft connected to the second pinion and having an axis coinciding with the rotation axis of the second pinion, and a third universal joint and a fourth universal joint directly or indirectly connect the first pinion shaft and the second pinion shaft to each other. The pinion connection shaft rotates integrally with the first pinion and the second pinion to synchronize rotation of the first pinion and rotation of the second pinion.
- In addition, the plug door device may further include a third pinion shaft which connects the first pinion shaft and the second pinion shaft to each other, the third universal joint may connect the first pinion shaft and the third pinion shaft, and the fourth universal joint may connect the second pinion shaft and the third pinion shaft.
- Problems of the plug door device of the eighth modification example are as follows.
- With Japanese Laid-Open Patent Publication No.
6-262945 - Accordingly, the problem to be solved by the plug door device is to smoothly open and close the door.
- It should be apparent to those skilled in the art that the present invention may be embodied in many other specific forms without departing from the scope of the ivention, as defined by the appended claims. For example, one or more of the components may be omitted from the components described in the embodiments (or one or more aspects thereof). Further, components in different embodiments may be appropriately combined.
- The present examples and embodiments are to be considered as illustrative and not restrictive, and the invention is not to be limited to the details given herein, but may be modified within the scope and equivalence of the appended claims.
Claims (7)
- A plug door device (1) comprising:a first swing arm (31);a second swing arm (32) spaced apart from the first swing arm (31) in a height direction when mounted on a door (220R, 220L);a first pinion (33) attached to a portion of the first swing arm (31) separated from a rotation axis of the first swing arm (31);a first rack (35) attachable to the door (220R, 220L) and meshed with the first pinion (33);a second pinion (34) attached to a portion of the second swing arm (32) separated from a rotation axis of the second swing arm (32);a second rack (36) attachable to the door (220R, 220L) and meshed with the second pinion (34);an arm connection shaft (40) including a first arm shaft (41) connected to the first swing arm (31) and having an axis coinciding with the rotation axis of the first swing arm (31), a second arm shaft (42) connected to the second swing arm (32) and having an axis coinciding with the rotation axis of the second swing arm (32), and a third arm shaft (43) connecting the first arm shaft (41) and the second arm shaft (42), wherein the arm connection shaft (40) rotates integrally with the first swing arm (31) and the second swing arm (32) to synchronize rotation of the first swing arm (31) and rotation of the second swing arm (32); anda pinion connection shaft (50) including a first pinion shaft (51) connected to the first pinion (33) and having an axis coinciding with a rotation axis of the first pinion (33), a second pinion shaft (52) connected to the second pinion (34) and having an axis coinciding with a rotation axis of the second pinion (34), and a third pinion shaft (53) connecting the first pinion shaft (51) and the second pinion shaft (52), wherein the pinion connection shaft (50) rotates integrally with the first pinion (33) and the second pinion (34) to synchronize rotation of the first pinion (33) and rotation of the second pinion (34), whereinthe arm connection shaft (40) includes a first universal joint (44), which connects the first arm shaft (41) and the third arm shaft (43), and a second universal joint (45), which connects the second arm shaft (42) and the third arm shaft (43), andthe pinion connection shaft (50) includes a third universal joint (54), which connects the first pinion shaft (51) and the third pinion shaft (53), and a fourth universal joint (55), which connects the second pinion shaft (52) and the third pinion shaft (53).
- The plug door device (1) according to claim 1, further comprising:an arm adjustment mechanism (70) configured to adjust a distance between the first swing arm (31) and the second swing arm (32); anda pinion adjustment mechanism (90) configured to adjust a distance between the first pinion (33) and the second pinion (34).
- The plug door device (1) according to claim 2, wherein:the arm adjustment mechanism (70) includes a first male threaded portion (41D), which is provided on the first arm shaft (41), and a first nut (71), which is fastened to the first male threaded portion (41D); andthe first nut (71) is configured to change a position of the first swing arm (31) by moving in an axial direction of the first male threaded portion (41 D).
- The plug door device (1) according to claim 2 or 3, wherein:the pinion adjustment mechanism (90) includes a second male threaded portion (52A), which is provided on the second pinion shaft (52), and a second nut (91), which is fastened to the second male threaded portion (52A); andthe second nut (91) is configured to change a position of the second pinion (34) by moving in an axial direction of the second male threaded portion (52A).
- The plug door device (1) according to claim 3 or 4, wherein at least one of the first arm shaft (41) and the first pinion shaft (51) includes:a first connection shaft (41A, 51A) and a second connection shaft (41B, 51B) that are separately formed; anda connection member (46, 56) connected to the first connection shaft (41A, 51A) to be non-rotatable to the first connection shaft (41A, 51A) and movable relative to the first connection shaft (41A, 51A) and connected to the second connection shaft (41B, 51B) to be non-rotatable to the second connection shaft (41B, 51B) and non-movable relative to the second connection shaft (41B, 51B).
- The plug door device (1) according to any one of claims 1 to 5, further comprising:an attachment member (66) configured to attach the first arm shaft (41) to a vehicle body (210), whereinthe attachment member (66) is configured to be attached to a fixing member (212R, 212L, 213R, 213L) provided on the vehicle body (210) and including a first vertical serration (212B, 213A) extending in a vertical direction, andthe attachment member (66) includes a second vertical serration (66E) configured to be meshed with the first vertical serration (212B, 213A).
- The plug door device (1) according to any one of claims 1 to 6, whereinthe first pinion (33) and the first rack (35) are arranged on an upper portion of the door (220R, 220L), andthe second pinion (34) and the second rack (36) are arranged on a lower portion of the door (220R, 220L).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018014042A JP7042093B2 (en) | 2018-01-30 | 2018-01-30 | Plug door device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3517719A1 EP3517719A1 (en) | 2019-07-31 |
EP3517719B1 true EP3517719B1 (en) | 2020-11-04 |
Family
ID=65023763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP19151590.7A Active EP3517719B1 (en) | 2018-01-30 | 2019-01-14 | Plug door device |
Country Status (4)
Country | Link |
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EP (1) | EP3517719B1 (en) |
JP (1) | JP7042093B2 (en) |
CN (1) | CN110091884B (en) |
TW (1) | TWI791740B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110578442B (en) * | 2019-09-27 | 2023-11-17 | 厦门威迪思汽车设计服务有限公司 | Bus sliding plug door mechanism |
CN112810642B (en) * | 2019-10-31 | 2022-08-09 | 比亚迪股份有限公司 | Sliding plug door bearing device, sliding plug door driving device and railway vehicle |
CN111447308B (en) * | 2020-03-25 | 2021-03-26 | Oppo广东移动通信有限公司 | Rotating mechanism and electronic device |
JP2022078791A (en) * | 2020-11-13 | 2022-05-25 | ナブテスコ株式会社 | Plug door device |
CN113668972B (en) * | 2021-09-30 | 2024-07-19 | 金湖畅途交通设备有限公司 | Pneumatic sliding plug door pump structure |
Family Cites Families (13)
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DE2105658A1 (en) * | 1971-02-06 | 1972-08-10 | Volkswagenwerk Ag, 3180 Wolfsburg | Door arrangement, in particular for motor vehicles, with a sliding door |
JPS5823971U (en) * | 1981-08-10 | 1983-02-15 | 株式会社ナブコ | Vehicle sliding door opening/closing device |
JP3323274B2 (en) * | 1993-03-15 | 2002-09-09 | 株式会社ナブコ | Plug door device |
US5483769A (en) * | 1993-12-07 | 1996-01-16 | Mark Iv Transportation Products Corporation | Door drive equipment for mass transit vehicle |
AT409616B (en) * | 1998-02-10 | 2002-09-25 | Ife Gmbh | SLIDING SLIDING DOOR FOR A VEHICLE |
JP3426217B2 (en) * | 2001-01-31 | 2003-07-14 | オーリス株式会社 | Sliding door device |
JP2003293623A (en) * | 2002-04-02 | 2003-10-15 | Best Oume:Kk | Door pull for both sides of door |
WO2010044339A1 (en) * | 2008-10-17 | 2010-04-22 | ナブテスコ株式会社 | Plug door device |
KR101533904B1 (en) * | 2011-03-10 | 2015-07-03 | 나부테스코 가부시키가이샤 | Plug door device |
FR2981323B1 (en) * | 2011-10-14 | 2013-11-22 | Faiveley Transport | DEVICE FOR OPENING AND CLOSING CONTROL OF A LOUVOYANTE AND SLIDING DOOR OR THE LIKE |
CN102536035A (en) * | 2012-02-23 | 2012-07-04 | 南京康尼机电股份有限公司 | Bearing driving mechanism of sliding door |
JP6346835B2 (en) * | 2014-09-22 | 2018-06-20 | ナブテスコ株式会社 | Plug door opening and closing device and plug door device |
JP6697933B2 (en) * | 2016-04-01 | 2020-05-27 | ナブテスコ株式会社 | Plug door device |
-
2018
- 2018-01-30 JP JP2018014042A patent/JP7042093B2/en active Active
-
2019
- 2019-01-14 EP EP19151590.7A patent/EP3517719B1/en active Active
- 2019-01-16 CN CN201910041306.4A patent/CN110091884B/en active Active
- 2019-01-16 TW TW108101616A patent/TWI791740B/en active
Non-Patent Citations (1)
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None * |
Also Published As
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JP2019132010A (en) | 2019-08-08 |
TW201932698A (en) | 2019-08-16 |
TWI791740B (en) | 2023-02-11 |
CN110091884A (en) | 2019-08-06 |
CN110091884B (en) | 2023-07-04 |
JP7042093B2 (en) | 2022-03-25 |
EP3517719A1 (en) | 2019-07-31 |
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