EP3546683A1 - Plug door opening/closing device - Google Patents
Plug door opening/closing device Download PDFInfo
- Publication number
- EP3546683A1 EP3546683A1 EP19162114.3A EP19162114A EP3546683A1 EP 3546683 A1 EP3546683 A1 EP 3546683A1 EP 19162114 A EP19162114 A EP 19162114A EP 3546683 A1 EP3546683 A1 EP 3546683A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plug
- link
- door leaf
- door
- guide
- 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.)
- Withdrawn
Links
- 230000007246 mechanism Effects 0.000 claims description 41
- 230000008859 change Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 description 39
- 238000013459 approach Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
Images
Classifications
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- 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
-
- 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
- E05D15/1002—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 specially adapted for use in railway-cars or mass transit vehicles
-
- 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
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
- E05F15/635—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by push-pull mechanisms, e.g. flexible or rigid rack-and-pinion arrangements
- E05F15/638—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by push-pull mechanisms, e.g. flexible or rigid rack-and-pinion arrangements allowing or involving a secondary movement of the wing, e.g. rotational or transversal
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- 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
- E05D2015/1028—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 only the wing moving transversely
-
- 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
- E05D2015/1028—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 only the wing moving transversely
- E05D2015/1031—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 only the wing moving transversely the wing supported on arms extending from the carriage
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- 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
- 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
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
- E05F15/652—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by screw-and-nut mechanisms
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- 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
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/218—Holders
- E05Y2201/22—Locks
-
- 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
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/224—Stops
-
- 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
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/23—Actuation thereof
- E05Y2201/232—Actuation thereof by automatically acting means
- E05Y2201/24—Actuation thereof by automatically acting means using lost motion
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- 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
- E05Y2201/688—Rollers
-
- 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
- E05Y2201/688—Rollers
- E05Y2201/692—Rollers having vertical axes
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- 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
-
- 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
- E05Y2900/53—Type of wing
- E05Y2900/531—Doors
Definitions
- the present invention relates to a plug door opening/closing device.
- An entrance of a vehicle is provided with a plug door apparatus that generates an opening/closing action that opens or closes a door leaf and a plug action that moves the door leaf in a transverse direction of the vehicle.
- the plug door apparatus includes a plug door opening/closing device that opens and closes the door leaf.
- Japanese Laid-Open Patent Publication No. 10-169298 describes a plug door apparatus that moves a carriage on a support rail to open or close the door leaf. Guide rollers travel in the guide rail so that a plug action of the door leaf is generated.
- the plug door apparatus described in Japanese Laid-Open Patent Publication No. 10-169298 requires the guide rail that guides the guide rollers to generate the plug action of the door leaf.
- the guide rail extends over the entire entrance of the vehicle in the widthwise direction of the entrance. This increases the space occupied by the plug door opening/closing device.
- a plug door opening/closing device configured to move a door leaf in a widthwise direction of an opening to open or close the opening.
- the plug door opening/closing device includes a movable body and a stopper.
- the movable body is moved together with the door leaf from a fully closed position via a plug-out position to a fully open position.
- the stopper is moved together with the movable body in a state maintaining relative positions of the movable body and the door leaf as the door leaf moves from the plug-out position to the fully open position.
- the door leaf can be moved in the widthwise direction of the opening as the movable body moves the door leaf from the plug-out position to the fully open position while the stopper maintains the relative positions of the movable body and the door leaf.
- the space occupied by the plug door opening/closing device can be reduced.
- the movable body includes a base moved in the widthwise direction of the opening and a plugging unit configured to change a relative distance between the base and the door leaf in a plugging direction that is orthogonal to the widthwise direction of the opening.
- the stopper restricts movement of the plugging unit.
- the stopper restricts the movement of the plugging unit that changes the relative distance between the door leaf and the base. This limits changes in the relative distance between the base and the door leaf even when the door leaf is operated in a plug-out state.
- the plugging unit includes a link mechanism.
- the link mechanism changes the relative distance between the base and the door leaf in the plugging direction.
- the link mechanism folds and reduces the space occupied by the plug door opening/closing device.
- the plugging unit includes a four-joint link.
- the four-joint link changes the relative distance between the base and the door leaf in the plugging direction.
- the four-joint link folds and reduces the space occupied by the plug door opening/closing device.
- the opposing links extending in the plugging direction may have different lengths so that the front end and rear end of the door leaf in the widthwise direction of the opening move along different paths.
- the plug door opening/closing device described above includes a lock mechanism configured to lock the base at the fully closed position by movement of the plugging unit when the door leaf is moved from the plug-out position to the fully closed position.
- the lock mechanism locks the base when the plugging unit generates a plug-in action, that is, when the plugging unit moves the door leaf from the plug-out position to the fully closed position. This restricts movement of the base even when the door leaf is operated in a fully closed state.
- the plug door opening/closing device according to the present invention succeeds in reducing the space occupied by the plug door opening/closing device.
- a plug door apparatus including a plug door opening/closing device in accordance with a first embodiment will now be described with reference to Figs. 1(a) to 7 .
- an entrance 2 of a vehicle is provided with a plug door apparatus 1 that generates an opening/closing action to open or close a door leaf 3 and a plug action to move the door leaf 3 in a plugging direction (i.e., vehicle transverse direction) that is orthogonal to the widthwise direction of the entrance 2.
- the plug door apparatus 1 includes the door leaf 3 and a plug door opening/closing device 4 that generates the opening/closing action and the plug action with the door leaf 3.
- the entrance 2 corresponds to an opening.
- the plug door opening/closing device 4 includes a door bracket 10 and a movable body 5.
- the door leaf 3 is mounted on the door bracket 10.
- the movable body 5 moves in the widthwise direction of the entrance 2 while holding the door bracket 10.
- the movable body 5 includes a main block 20 serving as a base that is movable in the widthwise direction of the entrance 2.
- the door leaf 3, the door bracket 10, and the main block 20 are arranged in order in the plugging direction from the side closer to the entrance 2.
- the main block 20 is supported by a support rail (not shown) so as to be movable in the widthwise direction of the entrance 2.
- the movable body 5 includes a plug mechanism 6 serving as a plugging unit configured to change the relative distance between the main block 20 and the door bracket 10 in the plugging direction.
- the plug mechanism 6 includes a front arm 30 and a rear arm 40 coupling the door bracket 10 and the main block 20.
- the door bracket 10 and the main block 20 are located at the same height in the vertical direction.
- the main block 20 supports the door bracket 10 with the front arm 30 and the rear arm 40 that construct a four-joint, equal-length link.
- the front arm 30 has one end rotationally coupled to the door bracket 10 by a first rotation shaft 11 and another end rotationally coupled to the main block 20 by a second rotation shaft 21.
- the second rotation shaft 21 projects upward from the main block 20.
- the rear arm 40 has one end rotationally coupled to the door bracket 10 by a third rotation shaft 12.
- the third rotation shaft 12 projects upward from the door bracket 10.
- the rear arm 40 has another end rotationally coupled to the main block 20 by a fourth rotation shaft 22.
- the front arm 30 and the rear arm 40 are located in an open space defined by the door bracket 10 and the main block 20.
- the first rotation shaft 11 is fixed to the door bracket 10 and rotatable relative to the front arm 30.
- the second rotation shaft 21 is fixed to the main block 20 and rotatable relative to the front arm 30.
- a guide bearing 21A is arranged on the second rotation shaft 21.
- the third rotation shaft 12 is fixed to the door bracket 10 and rotatable relative to the rear arm 40.
- the fourth rotation shaft 22 is fixed to the main block 20 and rotatable relative to the rear arm 40.
- the plug mechanism 6 rotates the front arm 30 and the rear arm 40 to change the relative distance between the door bracket 10 and the main block 20 in the plugging direction.
- the plug mechanism 6 includes a guide link 50 supported by the second rotation shaft 21 in a rotatable manner.
- the guide link 50 is located upward in the vertical direction from the main block 20 and the door bracket 10.
- the guide link 50 includes a first guide groove 51 that guides the third rotation shaft 12.
- a first guide bearing 12A is arranged on the third rotation shaft 12.
- the first guide bearing 12A is in contact with the first guide groove 51.
- the first guide groove 51 is a substantially Z-shaped groove having a depth that is equal to the width of the first guide bearing 12A.
- the first guide groove 51 is bent at a left end 51A and a right end 51B.
- the guide link 50 serves as a swing link that transmits movement of a drive bracket 60 to the rear arm 40.
- the rear arm 40 is rotated about the fourth rotation shaft 22 as the first guide groove 51 of the guide link 50 guides the third rotation shaft 12.
- the guide link 50 includes an upwardly projecting fifth rotation shaft 52.
- the plug mechanism 6 includes the drive bracket 60 that is coupled to the fifth rotation shaft 52.
- the drive bracket 60 is located upward in the vertical direction from the guide link 50.
- the drive bracket 60 includes a second guide groove 61 that guides the fifth rotation shaft 52 of the guide link 50.
- a second guide bearing 52A is arranged on the fifth rotation shaft 52.
- the second guide bearing 52A is in contact with the second guide groove 61.
- the second guide groove 61 extends from the main block 20 toward the door leaf 3, that is, in the plugging direction.
- the drive bracket 60 is fixed to a driving device, such as a ball screw, and acts as a drive link moved by the driving device in the widthwise direction of the entrance 2.
- the drive bracket 60 includes a mount 62 on which the driving device is mounted.
- the guide link 50 is rotated about the second rotation shaft 21 on the main block 20 as the movement of the drive bracket 60 in the widthwise direction of the entrance 2 guides the fifth rotation shaft 52 in the second guide groove 61.
- the main block 20 includes an upwardly projecting sixth rotation shaft 23.
- the plug door opening/closing device 4 includes a lock link 70 supported by the sixth rotation shaft 23 in a rotatable manner.
- the lock link 70 is located upward in the vertical direction from the door bracket 10 and the main block 20.
- the sixth rotation shaft 23 is coupled to the middle of the lock link 70.
- a seventh rotation shaft 71 is arranged on one end of the lock link 70.
- the seventh rotation shaft 71 is in contact with the guide link 50.
- a third guide bearing 71A is arranged on the seventh rotation shaft 71.
- the third guide bearing 71A is in contact with the edge of the guide link 50.
- a portion of the guide link 50 proximate to the main block 20 includes an engagement groove 53 that engages the third guide bearing 71A of the lock link 70.
- the lock link 70 has another end that defines an engagement portion 72.
- the engagement portion 72 is a semicircular cutout portion.
- the lock link 70 acts as a stopper.
- the plug door opening/closing device 4 includes a lock roller 80 fixed to the entrance 2.
- the lock roller 80 is rotated about an eighth rotation shaft 81.
- the engagement portion 72 of the lock link 70 engages the lock roller 80.
- a state in which the engagement portion 72 of the lock link 70 is engaged with the lock roller 80 is referred to as a lock state in which the main block 20 cannot be moved.
- Rotation of the lock link 70 disengages the engagement portion 72 of the lock link 70 from the lock roller 80.
- the lock roller 80 corresponds to a lock mechanism.
- Figs. 1(a) and 2 show the door leaf 3 at a fully closed position in a fully closed and locked state in which the door leaf 3 cannot be moved even when operated.
- the door bracket 10 and the main block 20 are opposed to each other in the plugging direction with their opposing surfaces in contact with each other.
- the engagement portion 72 of the lock link 70 is engaged with the lock roller 80, and the lock link 70 and the lock roller 80 cannot move. More specifically, in the lock state, the main block 20 cannot be moved relative to the entrance 2. Further, the lock link 70 cannot be rotated because the third guide bearing 71A of the lock link 70 is in contact with the side surface of the guide link 50.
- the fifth rotation shaft 52 of the guide link 50 is located toward the door leaf 3 in the second guide groove 61 of the drive bracket 60.
- the third rotation shaft 12 of the door bracket 10 is located at the right end in the first guide groove 51 of the guide link 50 in the widthwise direction of the entrance 2.
- the first guide bearing 12A of the third rotation shaft 12 is located at a position where the first guide groove 51 of the guide link 50 restricts the generation of a plug-out action that would move the door leaf 3 outward from the entrance 2.
- the second guide bearing 52A which is engaged with the second guide groove 61 of the drive bracket 60, is moved further rightward as viewed in the drawings.
- the second guide bearing 52A is moved in the second guide groove 61 toward the main block 20, and the guide link 50 is rotated further clockwise about the second rotation shaft 21 in a plan view.
- the first guide bearing 12A of the third rotation shaft 12 is moved along the first guide groove 51 of the guide link 50 to the right end 51B and fitted in the right end 51B.
- the rear arm 40 is rotated further clockwise about the fourth rotation shaft 22 in a plan view, and the door bracket 10 is separated from the main block 20 by the maximum extent.
- the door leaf 3 is in a plug-out state (plug-out position) and projected out of the entrance 2.
- the lock link 70 becomes rotatable, and the engagement portion 72 of the lock link 70 is disengaged from the lock roller 80.
- the rotation of the guide link 50 engages the third guide bearing 71A of the lock link 70 with the engagement groove 53 of the guide link 50. This restricts rotation of the guide link 50 and maintains the door leaf 3 in the plug-out state.
- the lock link 70, the guide link 50, and the front arm 30 are fixed in this state.
- the door leaf 3 and the main block 20 are maintained in the plug-out state (plug-out position) and moved in the widthwise direction of the entrance 2 in accordance with the movement of the drive bracket 60 to fully open the entrance 2.
- the door leaf 3 and the movable body 5 are located at the fully open position.
- the driving device moves the drive bracket 60 leftward. Since rotation of the guide link 50 is restricted, the door bracket 10 and the main block 20 are moved together leftward and maintained in the plug-out state.
- the engagement portion 72 of the lock link 70 contacts and engages the lock roller 80. This rotates the lock link 70 counterclockwise about the sixth rotation shaft 23 and disengages the third guide bearing 71A from the engagement groove 53 of the guide link 50.
- the guide link 50 is rotated counterclockwise about the second rotation shaft 21. Further, the front arm 30 and the rear arm 40 are rotated counterclockwise, and the door bracket 10 is moved toward the main block 20. This shifts the door leaf 3 to a plug-in state in which the door leaf 3 is not projected outward from the entrance 2.
- the plug door opening/closing device 4 With the plug door opening/closing device 4, movement of the drive bracket 60 in the widthwise direction of the entrance 2 allows a plug action to be generated to move the door leaf 3 in the vehicle transverse direction. Further, movement of the drive bracket 60 in the widthwise direction of the entrance 2 allows the door leaf 3 to be maintained in a plug-out state and also allows an opening/closing action to be generated with the door leaf 3. Moreover, the plug door opening/closing device 4 uses the guide link 50 to transmit movement of the drive bracket 60 to the rear arm 40 in order to generate a plug action and opening/closing action with the door leaf 3. Further, engagement of the lock link 70 with the guide link 50 maintains the door leaf 3 in a plug-out state. Thus, maintenance related with each function can be performed with just the rear arm 40.
- the present embodiment has the advantages described below.
- a plug door apparatus including a plug door opening/closing device in accordance with a second embodiment will now be described with reference to Figs. 8(a) to 13 .
- the second embodiment differs from the first embodiment in that the drive bracket is coupled to the rear arm and in that the guide link is engaged with the front arm.
- the description hereafter will focus on the differences from the first embodiment.
- an entrance 102 is provided with a plug door apparatus 101 that generates an opening/closing action to open or close a door leaf 103 and a plug action to move the door leaf 103 in a plugging direction (i.e., vehicle transverse direction) that is orthogonal to the widthwise direction of the entrance 102.
- the plug door apparatus 101 includes the door leaf 103 and a plug door opening/closing device 104 that generates the opening/closing action and the plug action with the door leaf 103.
- the entrance 102 corresponds to an opening.
- the plug door opening/closing device 104 includes a door bracket 110 and a movable body 105.
- the door leaf 103 is mounted on the door bracket 110.
- the movable body 105 moves in the widthwise direction of the entrance 102 while holding the door bracket 110.
- the movable body 105 includes a main block 120 serving as a base that is movable in the widthwise direction of the entrance 102.
- the door leaf 103, the door bracket 110, and the main block 120 are arranged in order in the plugging direction from the side closer to the entrance 102.
- the main block 120 is supported by a support rail (not shown) so as to be movable in the widthwise direction of the entrance 102.
- the movable body 105 includes a plug mechanism 106 serving as a plugging unit configured to change the relative distance between the main block 120 and the door bracket 110 in the plugging direction.
- the plug mechanism 106 includes a front arm 130 and a rear arm 140 coupling the door bracket 110 and the main block 120.
- the door bracket 110 and the main block 120 are located at the same height in the vertical direction.
- the main block 120 supports the door bracket 110 with the front arm 130 and the rear arm 140 that construct a four-joint, equal-length link.
- the front arm 130 has one end rotationally coupled to the door bracket 110 by a first rotation shaft 111 and another end rotationally coupled to the main block 120 by a third rotation shaft 112.
- a fifth rotation shaft 131 projects upward from the upper surface of the front arm 130.
- a first guide bearing 131A is arranged on the fifth rotation shaft 131.
- the rear arm 140 has one end rotationally coupled to the door bracket 110 by a third rotation shaft 112 and another end rotationally coupled to the main block 120 by a fourth rotation shaft 122.
- a sixth rotation shaft 141 projects upward from the upper surface of the rear arm 140.
- a second guide bearing 141A is arranged on the sixth rotation shaft 141.
- the front arm 130 and the rear arm 140 are located in an open space defined by the door bracket 110 and the main block 120 (refer to Fig. 9 ).
- the first rotation shaft 111 is fixed to the door bracket 110 and rotatable relative to the front arm 130.
- the second rotation shaft 121 is fixed to the main block 120 and rotatable relative to the front arm 130.
- the third rotation shaft 112 is fixed to the door bracket 110 and rotatable relative to the rear arm 140.
- the fourth rotation shaft 122 is fixed to the main block 120 and rotatable relative to the rear arm 140.
- the plug mechanism 106 rotates the front arm 130 and the rear arm 140 to change the relative distance between the door bracket 110 and the main block 120 in the plugging direction.
- the plug mechanism 106 includes a drive bracket 160 coupled to the sixth rotation shaft 141 of the rear arm 140.
- the drive bracket 160 is located upward in the vertical direction from the main block 120 and the door bracket 110.
- the drive bracket 160 includes a first guide groove 161 that guides the second guide bearing 141A of the sixth rotation shaft 141.
- the first guide groove 161 has a depth that is equal to the width of the second guide bearing 141A.
- the drive bracket 160 is fixed to a driving device, such as a ball screw, and acts as a drive link moved by the driving device in the widthwise direction of the entrance 102.
- the sixth rotation shaft 141 is guided in the first guide groove 161 to rotate the rear arm 140 about the fourth rotation shaft 122 on the main block 120.
- the main block 120 includes a mounting plate 125 extending in parallel to and spaced apart from the upper surface of the main block 120.
- a seventh rotation shaft 151 extends downward in the vertical direction from the mounting plate 125.
- the seventh rotation shaft 151 extending from the mounting plate 125 is arranged on the main block 120.
- An eighth rotation shaft 171 extends downward in the vertical direction from the mounting plate 125.
- the eighth rotation shaft 171 extending from the mounting plate 125 is arranged on the main block 120.
- the plug mechanism 106 includes a guide link 150 supported by the seventh rotation shaft 151 in a rotatable manner.
- the guide link 150 is located upward in the vertical direction from the main block 120 and the door bracket 110. Further, the guide link 150 is located upward in the vertical direction from the drive bracket 160.
- the guide link 150 has a right surface that contacts the first guide bearing 131A on the fifth rotation shaft 131 of the front arm 130. This restricts rotation of the guide link 150 about the seventh rotation shaft 151.
- the guide link 150 has a right end defining a first engagement portion 152 that engages the first guide bearing 131A on the fifth rotation shaft 131 of the front arm 130.
- the front arm 130 rotates about the second rotation shaft 121 as the first guide bearing 131A of the fifth rotation shaft 131 contacts the right surface of the guide link 150.
- the guide link 150 acts as a swing link.
- the plug door opening/closing device 104 includes a lock link 170 supported by the eighth rotation shaft 171 in a rotatable manner.
- the lock link 170 is located upward in the vertical direction from the door bracket 110 and the main block 120. Further, the lock link 170 is located upward in the vertical direction from the guide link 150.
- the eighth rotation shaft 171 is coupled to the middle of the lock link 170.
- the lock link 170 engages a ninth rotation shaft 153 arranged on one end of the guide link 150.
- a third guide bearing 153A is arranged on the ninth rotation shaft 153.
- a portion of the lock link 170 proximate to the guide link 150 defines a second engagement portion 172 that engages the third guide bearing 153A of the guide link 150.
- the lock link 170 has another end that defines an engagement portion 173.
- the engagement portion 173 is a semicircular cutout portion.
- the lock link 170 serves as a stopper.
- the plug door opening/closing device 104 includes a lock roller 180 fixed to the entrance 102.
- the lock roller 180 is rotated about a tenth rotation shaft 181.
- the engagement portion 173 of the lock link 170 engages the lock roller 180.
- a state in which the engagement portion 173 of the lock link 170 is engaged with the lock roller 180 is referred to as a lock state in which the main block 120 cannot be moved.
- Rotation of the lock link 170 disengages the engagement portion 173 of the lock link 170 from the lock roller 180.
- the lock roller 180 corresponds to a lock mechanism.
- Fig. 8(a) shows the door leaf 103 at the fully closed position in a fully closed and locked state in which the door leaf 103 cannot be moved even when operated.
- the engagement portion 173 of the lock link 170 is engaged with the lock roller 180, and the lock link 170 and the lock roller 180 cannot move. More specifically, in the lock state, the main block 120 cannot be moved relative to the entrance 102. Further, the second engagement portion 172 of the lock link 170 is engaged with the third guide bearing 153A of the guide link 150. Thus, the lock link 170 cannot be rotated.
- the first guide bearing 131A of the front arm 130 is in contact with the right surface of the guide link 150.
- the guide link 150 is located between the lock link 170 and the first guide bearing 131A of the front arm 130 and cannot be moved.
- the second guide bearing 141A on the sixth rotation shaft 141 of the rear arm 140 is located in the first guide groove 161 of the drive bracket 160 at the right end in the widthwise direction of the entrance 102.
- the left surface of the drive bracket 160 is in contact with the first guide bearing 131A on the fifth rotation shaft 131 of the front arm 130.
- the drive bracket 160 restricts rotation of the front arm 130 and the rear arm 140.
- the second guide bearing 141A is located slightly toward the left from the right end in the first guide groove 161 of the drive bracket 160.
- the first guide bearing 131A of the front arm 130 is separated from the side surface of the drive bracket 160.
- the first guide bearing 131A of the front arm 130 is in contact with the right surface of the guide link 150.
- the lock link 170 remains in the lock state and cannot be rotated. In this state, the front arm 130 and the rear arm 140 are not rotated.
- the second engagement portion 172 of the lock link 170 is engaged with the third guide bearing 153A of the guide link 150.
- the lock link 170 cannot be rotated. Accordingly, the door leaf 103 is still in the closed state, and the lock link 170 is still in the lock state.
- the driving device further moves the drive bracket 160 to the plug-out position at the right side in Fig. 11 , and the second guide bearing 141A is located at the left end in the first guide groove 161.
- the rear arm 140 is rotated clockwise about the fourth rotation shaft 122 in a plan view and separates the door bracket 110 from the main block 120.
- the front arm 130 rotates about the second rotation shaft 121. This generates the plug-out action of the door leaf 103.
- the second engagement portion 172 of the lock link 170 is engaged with the third guide bearing 153A of the guide link 150.
- the lock link 170 cannot be rotated, and the lock state is maintained.
- the drive bracket 160 which is moved to the plug-out position of the door leaf 103, pushes the main block 120 in an opening direction.
- the lock link 170 pushes the guide link 150 and rotates to shift to an unlock state.
- the door leaf 103 which remains in the plug-out state, moves together with the main block 120.
- the lock link 170 rotates and is disengaged from the lock roller 180.
- the rear arm 140 is further rotated clockwise about the fourth rotation shaft 122 in a plan view and separates the door bracket 110 from the main block 120 by the maximum extent.
- the front arm 130 rotates clockwise about the second rotation shaft 121 in a plan view. This projects the door leaf 103 out of the entrance 102 in a plug-out state. In this state, the front arm 130 is rotated clockwise about the second rotation shaft 121 to separate the first guide bearing 131A from the right surface of the guide link 150.
- Movement of the drive bracket 160 toward the right as viewed in Fig. 12 moves the main block 120 toward the right as viewed in Fig. 12 .
- the second engagement portion 172 of the lock link 170 pushes the third guide bearing 153A of the guide link 150 and rotates counterclockwise.
- the third guide bearing 153A which is rotated counterclockwise and disengaged from the second engagement portion 172, engages a third engagement portion 174, which is arranged adjacent to the second engagement portion 172 of the lock link 170.
- the guide link 150 restricts rotation of the front arm 130 and maintains the door leaf 103 in the plug-out state.
- the lock link 170, the guide link 150, and the front arm 130 are fixed as shown in Fig. 13 .
- the door leaf 103 and the main block 120 which remain in the plug-out state, are moved in the widthwise direction of the entrance 102 in accordance with the movement of the drive bracket 160 to fully open the entrance 102.
- the door leaf 103 and the movable body 105 are located at the fully open position when the entrance 102 is fully open.
- the driving device moves the drive bracket 160 toward the left and restricts rotation of the front arm 130. This integrally moves the door bracket 110 and the main block 120 toward the left in the plug-out state.
- the engagement portion 173 of the lock link 170 contacts and engages the lock roller 180, the lock link 170 is rotated clockwise about the eighth rotation shaft 171 and disengages the first engagement portion 152 of the guide link 150 from the first guide bearing 131A.
- the plug door opening/closing device 104 With the plug door opening/closing device 104, movement of the drive bracket 160 in the widthwise direction of the entrance 102 allows a plug action to be generated to move the door leaf 103 in the vehicle transverse direction. Further, movement of the drive bracket 160 in the widthwise direction of the entrance 102 allows the door leaf 103 to be maintained in a plug-out state and also allows an opening/closing action to be generated with the door leaf 103. Moreover, the plug door opening/closing device 104 transmits movement of the drive bracket 160 to the rear arm 140 in order to generate a plug action and opening/closing action with the door leaf 103. Further, engagement of the guide link 150 with the front arm 130 maintains the door leaf 103 in a plug-out state. Thus, the front arm 130 and the rear arm 140 share functions so that maintenance can be performed separately for each function.
- the present embodiment has the advantages described below.
- the front arm 30 (130) and the rear arm 40 (140), which form a four-joint link, do not have to be equal in length.
- the front end and rear end of the door leaf 3 (103) in the widthwise direction of the entrance 2 (102) move along different paths.
- the distance can be shortened between the front end of the door leaf 3 (103) and the entrance 2 (102).
- the stopper may be a structure that restricts movement of the second guide bearing 52A (141A) in the second guide groove 61 (first guide groove 161) of the drive bracket 60 (160). Further, the outer side of the guide link 50 or the front arm 130 may be directly fixed so that rotation of the guide link 50 in the first embodiment or rotation of the front arm 130 in the second embodiment is restricted in the rotation direction that cancels a plug-out state.
- the stopper may be a ratchet that allows for rotation in the plug-out direction and restricts rotation in the opposite direction.
- the plug door opening/closing device 4 (104) in each of the above embodiments includes the link mechanism as the plugging unit that generates a plug action with the door bracket 10 (110).
- a structure other than the link mechanism can be employed.
- a stopper arranged on the main block may be used to maintain a door leaf of a plugging unit in a plug-out state.
- a slider mechanism may be employed as the plugging unit.
- a plug door opening/closing device 204 couples a door bracket 210 and a main block 220 with a first slider mechanism 230 and a second slider mechanism 240.
- the first slider mechanism 230 and the second slider mechanism 240 act as the plugging unit.
- the first slider mechanism 230 and the second slider mechanism 240 extend to shift a door leaf 203 to a plug-out state.
- the plug door opening/closing device 204 includes an engagement member 250 that serves as a stopper and engages the extended portion of the first slider mechanism 230. When the first slider mechanism 230 is extended, the engagement member 250 is rotated about a rotation shaft 251 and inserted into the extended portion of the first slider mechanism 230 to maintain the door bracket 210 in the plug-out state.
- the stopper mechanically restricts movement of the plugging unit.
- the stopper may electrically restrict movement of the plugging unit. That is, the stopper may be powered on and off to actuate a member restricting movement of the plugging unit.
- the driving device is exemplified as a ball screw.
- the driving device may be any device that can horizontally move the drive bracket 60 (160) such as a belt.
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Abstract
Description
- The present invention relates to a plug door opening/closing device.
- An entrance of a vehicle is provided with a plug door apparatus that generates an opening/closing action that opens or closes a door leaf and a plug action that moves the door leaf in a transverse direction of the vehicle. The plug door apparatus includes a plug door opening/closing device that opens and closes the door leaf.
- Japanese Laid-Open Patent Publication No.
10-169298 - The plug door apparatus described in Japanese Laid-Open Patent Publication No.
10-169298 - Accordingly, it is an objective of the present invention to provide a plug door opening/closing device that reduces the space occupied by the plug door opening/closing device.
- To achieve the above objective and in accordance with one aspect of the present invention, a plug door opening/closing device is provided that is configured to move a door leaf in a widthwise direction of an opening to open or close the opening. The plug door opening/closing device includes a movable body and a stopper. The movable body is moved together with the door leaf from a fully closed position via a plug-out position to a fully open position. The stopper is moved together with the movable body in a state maintaining relative positions of the movable body and the door leaf as the door leaf moves from the plug-out position to the fully open position.
- With the above configuration, the door leaf can be moved in the widthwise direction of the opening as the movable body moves the door leaf from the plug-out position to the fully open position while the stopper maintains the relative positions of the movable body and the door leaf. This eliminates the need for a guide rail used to generate a plug action. Thus, the space occupied by the plug door opening/closing device can be reduced.
- Preferably, in the plug door opening/closing device described above, the movable body includes a base moved in the widthwise direction of the opening and a plugging unit configured to change a relative distance between the base and the door leaf in a plugging direction that is orthogonal to the widthwise direction of the opening. Preferably, the stopper restricts movement of the plugging unit.
- With the above configuration, the stopper restricts the movement of the plugging unit that changes the relative distance between the door leaf and the base. This limits changes in the relative distance between the base and the door leaf even when the door leaf is operated in a plug-out state.
- Preferably, in the plug door opening/closing device described above, the plugging unit includes a link mechanism.
- With the above configuration, the link mechanism changes the relative distance between the base and the door leaf in the plugging direction. Thus, when the door leaf approaches the base, the link mechanism folds and reduces the space occupied by the plug door opening/closing device.
- Preferably, in the plug door opening/closing device described above, the plugging unit includes a four-joint link.
- With the above configuration, the four-joint link changes the relative distance between the base and the door leaf in the plugging direction. Thus, when the door leaf approaches the base, the four-joint link folds and reduces the space occupied by the plug door opening/closing device. Further, in the four-joint link, the opposing links extending in the plugging direction may have different lengths so that the front end and rear end of the door leaf in the widthwise direction of the opening move along different paths.
- Preferably, the plug door opening/closing device described above includes a lock mechanism configured to lock the base at the fully closed position by movement of the plugging unit when the door leaf is moved from the plug-out position to the fully closed position.
- With the above configuration, the lock mechanism locks the base when the plugging unit generates a plug-in action, that is, when the plugging unit moves the door leaf from the plug-out position to the fully closed position. This restricts movement of the base even when the door leaf is operated in a fully closed state.
- The plug door opening/closing device according to the present invention succeeds in reducing the space occupied by the plug door opening/closing device.
- 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 plan view showing a plug door opening/closing device in accordance with a first embodiment illustrating a fully closed and locked state; -
Fig. 1(b) is a plan view showing part of the plug door opening/closing device in accordance with the first embodiment; -
Fig. 2 is a left view of the plug door opening/closing device in accordance with the first embodiment; -
Fig. 3 is a cross-sectional view of the plug door opening/closing device in accordance with the first embodiment; -
Fig. 4(a) is plan view of the plug door opening/closing device in accordance with the first embodiment illustrating an opening action; -
Fig. 4(b) is a plan view showing part of the plug door opening/closing device in accordance with the first embodiment; -
Fig. 5(a) is a plan view of the plug door opening/closing device in accordance with the first embodiment illustrating a plug-out action; -
Fig. 5(b) is a plan view showing part of the plug door opening/closing device in accordance with the first embodiment; -
Fig. 6(a) is a plan view of the plug door opening/closing device in accordance with the first embodiment illustrating an opening action; -
Fig. 6(b) is a plan view showing part of the plug door opening/closing device in accordance with the first embodiment; -
Fig. 7 is a plan view of the plug door opening/closing device in accordance with the first embodiment illustrating an opening action; -
Figs. 8(a) and 8(b) are plan views of a plug door opening/closing device in accordance with a second embodiment illustrating a fully closed and locked state; -
Fig. 9 is a cross-sectional view of the plug door opening/closing device in accordance with the second embodiment; -
Fig. 10 is a plan view of the plug door opening/closing device in accordance with the second embodiment; -
Fig. 11 is a plan view of the plug door opening/closing device in accordance with the second embodiment illustrating a plug-out action; -
Fig. 12 is a plan view of the plug door opening/closing device in accordance with the second embodiment illustrating an opening action; -
Fig. 13 is a plan view of the plug door opening/closing device in accordance with the second embodiment illustrating an opening action; -
Fig. 14 is a plan view of a plug door opening/closing device in accordance with a modified example illustrating a fully closed state; and -
Fig. 15 is a plan view of the plug door opening/closing device in accordance with the modified example illustrating a plug-out state. - A plug door apparatus including a plug door opening/closing device in accordance with a first embodiment will now be described with reference to
Figs. 1(a) to 7 . - As shown in
Fig. 1(a) , anentrance 2 of a vehicle, such as a railway vehicle, is provided with aplug door apparatus 1 that generates an opening/closing action to open or close adoor leaf 3 and a plug action to move thedoor leaf 3 in a plugging direction (i.e., vehicle transverse direction) that is orthogonal to the widthwise direction of theentrance 2. Theplug door apparatus 1 includes thedoor leaf 3 and a plug door opening/closing device 4 that generates the opening/closing action and the plug action with thedoor leaf 3. Theentrance 2 corresponds to an opening. - The plug door opening/
closing device 4 includes adoor bracket 10 and amovable body 5. Thedoor leaf 3 is mounted on thedoor bracket 10. Themovable body 5 moves in the widthwise direction of theentrance 2 while holding thedoor bracket 10. Themovable body 5 includes amain block 20 serving as a base that is movable in the widthwise direction of theentrance 2. Thedoor leaf 3, thedoor bracket 10, and themain block 20 are arranged in order in the plugging direction from the side closer to theentrance 2. Themain block 20 is supported by a support rail (not shown) so as to be movable in the widthwise direction of theentrance 2. - As shown in
Figs. 1(a) and 1(b) , themovable body 5 includes aplug mechanism 6 serving as a plugging unit configured to change the relative distance between themain block 20 and thedoor bracket 10 in the plugging direction. Theplug mechanism 6 includes afront arm 30 and arear arm 40 coupling thedoor bracket 10 and themain block 20. Thedoor bracket 10 and themain block 20 are located at the same height in the vertical direction. Themain block 20 supports thedoor bracket 10 with thefront arm 30 and therear arm 40 that construct a four-joint, equal-length link. Thefront arm 30 has one end rotationally coupled to thedoor bracket 10 by afirst rotation shaft 11 and another end rotationally coupled to themain block 20 by asecond rotation shaft 21. Thesecond rotation shaft 21 projects upward from themain block 20. Therear arm 40 has one end rotationally coupled to thedoor bracket 10 by athird rotation shaft 12. Thethird rotation shaft 12 projects upward from thedoor bracket 10. Therear arm 40 has another end rotationally coupled to themain block 20 by afourth rotation shaft 22. When theentrance 2 is in a fully closed state as shown inFig. 1(a) , thedoor leaf 3 and themovable body 5 are located at a fully closed position. - As shown in
Figs. 2 and 3 , thefront arm 30 and therear arm 40 are located in an open space defined by thedoor bracket 10 and themain block 20. Thefirst rotation shaft 11 is fixed to thedoor bracket 10 and rotatable relative to thefront arm 30. Thesecond rotation shaft 21 is fixed to themain block 20 and rotatable relative to thefront arm 30. A guide bearing 21A is arranged on thesecond rotation shaft 21. Thethird rotation shaft 12 is fixed to thedoor bracket 10 and rotatable relative to therear arm 40. Thefourth rotation shaft 22 is fixed to themain block 20 and rotatable relative to therear arm 40. - Referring to
Fig. 1(a) , theplug mechanism 6 rotates thefront arm 30 and therear arm 40 to change the relative distance between thedoor bracket 10 and themain block 20 in the plugging direction. - The
plug mechanism 6 includes aguide link 50 supported by thesecond rotation shaft 21 in a rotatable manner. Theguide link 50 is located upward in the vertical direction from themain block 20 and thedoor bracket 10. Theguide link 50 includes afirst guide groove 51 that guides thethird rotation shaft 12. A first guide bearing 12A is arranged on thethird rotation shaft 12. The first guide bearing 12A is in contact with thefirst guide groove 51. Thefirst guide groove 51 is a substantially Z-shaped groove having a depth that is equal to the width of the first guide bearing 12A. Thefirst guide groove 51 is bent at aleft end 51A and aright end 51B. Thus, when the first guide bearing 12A is fitted in theleft end 51A orright end 51B of thefirst guide groove 51, the first guide bearing 12A will not be separated from theleft end 51A orright end 51B of thefirst guide groove 51 unless theguide link 50 rotates. Theguide link 50 serves as a swing link that transmits movement of adrive bracket 60 to therear arm 40. Thus, therear arm 40 is rotated about thefourth rotation shaft 22 as thefirst guide groove 51 of theguide link 50 guides thethird rotation shaft 12. Theguide link 50 includes an upwardly projectingfifth rotation shaft 52. - The
plug mechanism 6 includes thedrive bracket 60 that is coupled to thefifth rotation shaft 52. Thedrive bracket 60 is located upward in the vertical direction from theguide link 50. Thedrive bracket 60 includes asecond guide groove 61 that guides thefifth rotation shaft 52 of theguide link 50. A second guide bearing 52A is arranged on thefifth rotation shaft 52. The second guide bearing 52A is in contact with thesecond guide groove 61. Thesecond guide groove 61 extends from themain block 20 toward thedoor leaf 3, that is, in the plugging direction. Thedrive bracket 60 is fixed to a driving device, such as a ball screw, and acts as a drive link moved by the driving device in the widthwise direction of theentrance 2. Thedrive bracket 60 includes amount 62 on which the driving device is mounted. Theguide link 50 is rotated about thesecond rotation shaft 21 on themain block 20 as the movement of thedrive bracket 60 in the widthwise direction of theentrance 2 guides thefifth rotation shaft 52 in thesecond guide groove 61. - The
main block 20 includes an upwardly projectingsixth rotation shaft 23. The plug door opening/closing device 4 includes alock link 70 supported by thesixth rotation shaft 23 in a rotatable manner. Thelock link 70 is located upward in the vertical direction from thedoor bracket 10 and themain block 20. Thesixth rotation shaft 23 is coupled to the middle of thelock link 70. Aseventh rotation shaft 71 is arranged on one end of thelock link 70. Theseventh rotation shaft 71 is in contact with theguide link 50. A third guide bearing 71A is arranged on theseventh rotation shaft 71. The third guide bearing 71A is in contact with the edge of theguide link 50. A portion of theguide link 50 proximate to themain block 20 includes anengagement groove 53 that engages the third guide bearing 71A of thelock link 70. Engagement of the third guide bearing 71A with theengagement groove 53 of theguide link 50 restricts rotation of theguide link 50. Thelock link 70 has another end that defines anengagement portion 72. Theengagement portion 72 is a semicircular cutout portion. The lock link 70 acts as a stopper. - The plug door opening/
closing device 4 includes alock roller 80 fixed to theentrance 2. Thelock roller 80 is rotated about aneighth rotation shaft 81. Theengagement portion 72 of thelock link 70 engages thelock roller 80. A state in which theengagement portion 72 of thelock link 70 is engaged with thelock roller 80 is referred to as a lock state in which themain block 20 cannot be moved. Rotation of thelock link 70 disengages theengagement portion 72 of the lock link 70 from thelock roller 80. Thelock roller 80 corresponds to a lock mechanism. - The operation of the
plug door apparatus 1 will now be described with reference toFigs. 1(a) to 7 . The operation for shifting thedoor leaf 3 from a fully closed and locked state to an open state will now be described. -
Figs. 1(a) and2 show thedoor leaf 3 at a fully closed position in a fully closed and locked state in which thedoor leaf 3 cannot be moved even when operated. Thedoor bracket 10 and themain block 20 are opposed to each other in the plugging direction with their opposing surfaces in contact with each other. In the lock state, theengagement portion 72 of thelock link 70 is engaged with thelock roller 80, and thelock link 70 and thelock roller 80 cannot move. More specifically, in the lock state, themain block 20 cannot be moved relative to theentrance 2. Further, thelock link 70 cannot be rotated because the third guide bearing 71A of thelock link 70 is in contact with the side surface of theguide link 50. Thefifth rotation shaft 52 of theguide link 50 is located toward thedoor leaf 3 in thesecond guide groove 61 of thedrive bracket 60. Thethird rotation shaft 12 of thedoor bracket 10 is located at the right end in thefirst guide groove 51 of theguide link 50 in the widthwise direction of theentrance 2. The first guide bearing 12A of thethird rotation shaft 12 is located at a position where thefirst guide groove 51 of theguide link 50 restricts the generation of a plug-out action that would move thedoor leaf 3 outward from theentrance 2. - Then, referring to
Figs. 4(a) and 4(b) , when the driving device moves thedrive bracket 60 rightward as viewed in the drawings, the second guide bearing 52A, which is engaged with thesecond guide groove 61 of thedrive bracket 60, is moved rightward as viewed in the drawings. Thus, theguide link 50 is rotated clockwise about thesecond rotation shaft 21 in a plan view to an unlocking initiation position where unlocking is initiated. Then, the first guide bearing 12A of thethird rotation shaft 12 is separated from theright end 51B of thefirst guide groove 51 in theguide link 50. The third guide bearing 71A of thelock link 70 is in contact with the side surface of theguide link 50. Thus, thelock link 70 cannot be rotated. In this state, thefront arm 30 and therear arm 40 are not rotated. Further, the third guide bearing 71A of thelock link 70 is in contact with the side surface of theguide link 50, and thelock link 70 cannot be rotated. Thus, thedoor leaf 3 is still in a closed state, and thelock link 70 is still in the lock state. - Referring to
Figs. 5(a) and Fig. 5(b) , when the driving device moves thedrive bracket 60 further rightward as viewed in the drawings, the second guide bearing 52A, which is engaged with thesecond guide groove 61 of thedrive bracket 60, is moved further rightward as viewed in the drawings. Thus, theguide link 50 is rotated further clockwise about thesecond rotation shaft 21 in a plan view. The first guide bearing 12A of thethird rotation shaft 12 is moved along thefirst guide groove 51 of the guide link 50 from theright end 51B toward theleft end 51A. This rotates therear arm 40 clockwise about thefourth rotation shaft 22 in a plan view and separates thedoor bracket 10 from themain block 20. As therear arm 40 rotates, thefront arm 30 is rotated about thesecond rotation shaft 21. Consequently, thedoor leaf 3 generates a plug-out action. In this state, the third guide bearing 71A of thelock link 70 is in contact with the side surface of theguide link 50. This maintains the lock state, and thelock link 70 cannot be rotated. - Referring to
Figs. 6(a) and 6(b) , when the driving device moves thedrive bracket 60 further rightward as viewed in the drawings, the second guide bearing 52A, which is engaged with thesecond guide groove 61 of thedrive bracket 60, is moved further rightward as viewed in the drawings. Thus, the second guide bearing 52A is moved in thesecond guide groove 61 toward themain block 20, and theguide link 50 is rotated further clockwise about thesecond rotation shaft 21 in a plan view. The first guide bearing 12A of thethird rotation shaft 12 is moved along thefirst guide groove 51 of theguide link 50 to theright end 51B and fitted in theright end 51B. Consequently, therear arm 40 is rotated further clockwise about thefourth rotation shaft 22 in a plan view, and thedoor bracket 10 is separated from themain block 20 by the maximum extent. Thus, thedoor leaf 3 is in a plug-out state (plug-out position) and projected out of theentrance 2. In this state, when theguide link 50 rotates to the plug-out position, thelock link 70 becomes rotatable, and theengagement portion 72 of thelock link 70 is disengaged from thelock roller 80. The rotation of theguide link 50 engages the third guide bearing 71A of thelock link 70 with theengagement groove 53 of theguide link 50. This restricts rotation of theguide link 50 and maintains thedoor leaf 3 in the plug-out state. - Then, as shown in
Fig. 7 , thelock link 70, theguide link 50, and thefront arm 30 are fixed in this state. Thedoor leaf 3 and themain block 20 are maintained in the plug-out state (plug-out position) and moved in the widthwise direction of theentrance 2 in accordance with the movement of thedrive bracket 60 to fully open theentrance 2. When theentrance 2 is fully open, thedoor leaf 3 and themovable body 5 are located at the fully open position. - When the
door leaf 3 generates a plug-in action, that is, when thedoor leaf 3 projected from theentrance 2 is moved inward back to its original position, the driving device moves thedrive bracket 60 leftward. Since rotation of theguide link 50 is restricted, thedoor bracket 10 and themain block 20 are moved together leftward and maintained in the plug-out state. Theengagement portion 72 of the lock link 70 contacts and engages thelock roller 80. This rotates thelock link 70 counterclockwise about thesixth rotation shaft 23 and disengages the third guide bearing 71A from theengagement groove 53 of theguide link 50. In a state in which theguide link 50 is rotatable, when thedrive bracket 60 moves leftward, theguide link 50 is rotated counterclockwise about thesecond rotation shaft 21. Further, thefront arm 30 and therear arm 40 are rotated counterclockwise, and thedoor bracket 10 is moved toward themain block 20. This shifts thedoor leaf 3 to a plug-in state in which thedoor leaf 3 is not projected outward from theentrance 2. - With the plug door opening/
closing device 4, movement of thedrive bracket 60 in the widthwise direction of theentrance 2 allows a plug action to be generated to move thedoor leaf 3 in the vehicle transverse direction. Further, movement of thedrive bracket 60 in the widthwise direction of theentrance 2 allows thedoor leaf 3 to be maintained in a plug-out state and also allows an opening/closing action to be generated with thedoor leaf 3. Moreover, the plug door opening/closing device 4 uses theguide link 50 to transmit movement of thedrive bracket 60 to therear arm 40 in order to generate a plug action and opening/closing action with thedoor leaf 3. Further, engagement of thelock link 70 with theguide link 50 maintains thedoor leaf 3 in a plug-out state. Thus, maintenance related with each function can be performed with just therear arm 40. - As described above, the present embodiment has the advantages described below.
- (1) As the
movable body 5 moves thedoor leaf 3 from a plug-out position to the fully open position, thedoor leaf 3 can be moved in the widthwise direction of theentrance 2 while thelock link 70 continuously maintains the relative positions of themovable body 5 and thedoor leaf 3. Thus, a plug action can be generated without a guide rail. This allows for reduction in the space occupied by the plug door opening/closing device 4. - (2) The
lock link 70 restricts movement that changes the relative distance between thedoor leaf 3 and themain block 20 of theplug mechanism 6. Thus, even if thedoor leaf 3 is operated in a plug-out state, changes are restricted in the relative distance between themain block 20 and thedoor leaf 3. - (3) The link mechanism changes the relative distance between the
door leaf 3 and themain block 20 in the plugging direction. Thus, when thedoor leaf 3 approaches themain block 20, the link mechanism folds and reduces the space occupied by the plug door opening/closing device 4. - (4) The plug-in action of the
plug mechanism 6, that is, movement of thedoor leaf 3 from the plug-out position to the fully closed position generated by theplug mechanism 6 locks themain block 20 with thelock roller 80. This restricts movement of themain block 20 even if thedoor leaf 3 is operated in the fully closed state. - A plug door apparatus including a plug door opening/closing device in accordance with a second embodiment will now be described with reference to
Figs. 8(a) to 13 . The second embodiment differs from the first embodiment in that the drive bracket is coupled to the rear arm and in that the guide link is engaged with the front arm. The description hereafter will focus on the differences from the first embodiment. - As shown in
Fig. 8(a) , anentrance 102 is provided with aplug door apparatus 101 that generates an opening/closing action to open or close adoor leaf 103 and a plug action to move thedoor leaf 103 in a plugging direction (i.e., vehicle transverse direction) that is orthogonal to the widthwise direction of theentrance 102. Theplug door apparatus 101 includes thedoor leaf 103 and a plug door opening/closing device 104 that generates the opening/closing action and the plug action with thedoor leaf 103. Theentrance 102 corresponds to an opening. - The plug door opening/
closing device 104 includes adoor bracket 110 and amovable body 105. Thedoor leaf 103 is mounted on thedoor bracket 110. Themovable body 105 moves in the widthwise direction of theentrance 102 while holding thedoor bracket 110. Themovable body 105 includes amain block 120 serving as a base that is movable in the widthwise direction of theentrance 102. Thedoor leaf 103, thedoor bracket 110, and themain block 120 are arranged in order in the plugging direction from the side closer to theentrance 102. Themain block 120 is supported by a support rail (not shown) so as to be movable in the widthwise direction of theentrance 102. - The
movable body 105 includes aplug mechanism 106 serving as a plugging unit configured to change the relative distance between themain block 120 and thedoor bracket 110 in the plugging direction. Theplug mechanism 106 includes afront arm 130 and arear arm 140 coupling thedoor bracket 110 and themain block 120. Thedoor bracket 110 and themain block 120 are located at the same height in the vertical direction. Themain block 120 supports thedoor bracket 110 with thefront arm 130 and therear arm 140 that construct a four-joint, equal-length link. Thefront arm 130 has one end rotationally coupled to thedoor bracket 110 by afirst rotation shaft 111 and another end rotationally coupled to themain block 120 by athird rotation shaft 112. Afifth rotation shaft 131 projects upward from the upper surface of thefront arm 130. A first guide bearing 131A is arranged on thefifth rotation shaft 131. Therear arm 140 has one end rotationally coupled to thedoor bracket 110 by athird rotation shaft 112 and another end rotationally coupled to themain block 120 by afourth rotation shaft 122. Asixth rotation shaft 141 projects upward from the upper surface of therear arm 140. A second guide bearing 141A is arranged on thesixth rotation shaft 141. When theentrance 102 is in a fully closed state as shown inFig. 8(a) , thedoor leaf 103 and themovable body 105 are located at a fully closed position. - The
front arm 130 and therear arm 140 are located in an open space defined by thedoor bracket 110 and the main block 120 (refer toFig. 9 ). Thefirst rotation shaft 111 is fixed to thedoor bracket 110 and rotatable relative to thefront arm 130. Thesecond rotation shaft 121 is fixed to themain block 120 and rotatable relative to thefront arm 130. Thethird rotation shaft 112 is fixed to thedoor bracket 110 and rotatable relative to therear arm 140. Thefourth rotation shaft 122 is fixed to themain block 120 and rotatable relative to therear arm 140. - The
plug mechanism 106 rotates thefront arm 130 and therear arm 140 to change the relative distance between thedoor bracket 110 and themain block 120 in the plugging direction. - The
plug mechanism 106 includes adrive bracket 160 coupled to thesixth rotation shaft 141 of therear arm 140. Thedrive bracket 160 is located upward in the vertical direction from themain block 120 and thedoor bracket 110. Thedrive bracket 160 includes afirst guide groove 161 that guides the second guide bearing 141A of thesixth rotation shaft 141. Thefirst guide groove 161 has a depth that is equal to the width of the second guide bearing 141A. Thedrive bracket 160 is fixed to a driving device, such as a ball screw, and acts as a drive link moved by the driving device in the widthwise direction of theentrance 102. As thedrive bracket 160 moves in the widthwise direction of theentrance 102, thesixth rotation shaft 141 is guided in thefirst guide groove 161 to rotate therear arm 140 about thefourth rotation shaft 122 on themain block 120. - As shown in
Fig. 9 , themain block 120 includes a mountingplate 125 extending in parallel to and spaced apart from the upper surface of themain block 120. Aseventh rotation shaft 151 extends downward in the vertical direction from the mountingplate 125. Theseventh rotation shaft 151 extending from the mountingplate 125 is arranged on themain block 120. Aneighth rotation shaft 171 extends downward in the vertical direction from the mountingplate 125. Theeighth rotation shaft 171 extending from the mountingplate 125 is arranged on themain block 120. - As shown in
Figs. 8(a) and 8(b) , theplug mechanism 106 includes aguide link 150 supported by theseventh rotation shaft 151 in a rotatable manner. Theguide link 150 is located upward in the vertical direction from themain block 120 and thedoor bracket 110. Further, theguide link 150 is located upward in the vertical direction from thedrive bracket 160. As shown inFig. 8(b) , theguide link 150 has a right surface that contacts the first guide bearing 131A on thefifth rotation shaft 131 of thefront arm 130. This restricts rotation of theguide link 150 about theseventh rotation shaft 151. Theguide link 150 has a right end defining afirst engagement portion 152 that engages the first guide bearing 131A on thefifth rotation shaft 131 of thefront arm 130. Thefront arm 130 rotates about thesecond rotation shaft 121 as the first guide bearing 131A of thefifth rotation shaft 131 contacts the right surface of theguide link 150. When the first guide bearing 131A of thefifth rotation shaft 131 reaches thefirst engagement portion 152 at the right end of theguide link 150, counterclockwise rotation of thefront arm 130 is restricted. The guide link 150 acts as a swing link. - The plug door opening/
closing device 104 includes alock link 170 supported by theeighth rotation shaft 171 in a rotatable manner. Thelock link 170 is located upward in the vertical direction from thedoor bracket 110 and themain block 120. Further, thelock link 170 is located upward in the vertical direction from theguide link 150. Theeighth rotation shaft 171 is coupled to the middle of thelock link 170. Thelock link 170 engages aninth rotation shaft 153 arranged on one end of theguide link 150. A third guide bearing 153A is arranged on theninth rotation shaft 153. A portion of thelock link 170 proximate to theguide link 150 defines asecond engagement portion 172 that engages the third guide bearing 153A of theguide link 150. Engagement of the third guide bearing 153A of theguide link 150 with thesecond engagement portion 172 of thelock link 170 restricts rotation of theguide link 150. Thelock link 170 has another end that defines anengagement portion 173. Theengagement portion 173 is a semicircular cutout portion. Thelock link 170 serves as a stopper. - The plug door opening/
closing device 104 includes alock roller 180 fixed to theentrance 102. Thelock roller 180 is rotated about atenth rotation shaft 181. Theengagement portion 173 of thelock link 170 engages thelock roller 180. A state in which theengagement portion 173 of thelock link 170 is engaged with thelock roller 180 is referred to as a lock state in which themain block 120 cannot be moved. Rotation of thelock link 170 disengages theengagement portion 173 of the lock link 170 from thelock roller 180. Thelock roller 180 corresponds to a lock mechanism. - The operation of the
plug door apparatus 101 will now be described with reference toFigs. 8(a) to 13 . The operation for shifting thedoor leaf 103 from a fully closed and locked state to an open state will now be described. -
Fig. 8(a) shows thedoor leaf 103 at the fully closed position in a fully closed and locked state in which thedoor leaf 103 cannot be moved even when operated. In the lock state, theengagement portion 173 of thelock link 170 is engaged with thelock roller 180, and thelock link 170 and thelock roller 180 cannot move. More specifically, in the lock state, themain block 120 cannot be moved relative to theentrance 102. Further, thesecond engagement portion 172 of thelock link 170 is engaged with the third guide bearing 153A of theguide link 150. Thus, thelock link 170 cannot be rotated. The first guide bearing 131A of thefront arm 130 is in contact with the right surface of theguide link 150. Theguide link 150 is located between thelock link 170 and the first guide bearing 131A of thefront arm 130 and cannot be moved. The second guide bearing 141A on thesixth rotation shaft 141 of therear arm 140 is located in thefirst guide groove 161 of thedrive bracket 160 at the right end in the widthwise direction of theentrance 102. The left surface of thedrive bracket 160 is in contact with the first guide bearing 131A on thefifth rotation shaft 131 of thefront arm 130. Thus, thedrive bracket 160 restricts rotation of thefront arm 130 and therear arm 140. - As shown in
Fig. 10 , when the driving device moves thedrive bracket 160 to an unlocking initiation position where unlocking is initiated at the right side inFig. 10 , the second guide bearing 141A is located slightly toward the left from the right end in thefirst guide groove 161 of thedrive bracket 160. The first guide bearing 131A of thefront arm 130 is separated from the side surface of thedrive bracket 160. The first guide bearing 131A of thefront arm 130 is in contact with the right surface of theguide link 150. Thus, thelock link 170 remains in the lock state and cannot be rotated. In this state, thefront arm 130 and therear arm 140 are not rotated. Further, thesecond engagement portion 172 of thelock link 170 is engaged with the third guide bearing 153A of theguide link 150. Thus, thelock link 170 cannot be rotated. Accordingly, thedoor leaf 103 is still in the closed state, and thelock link 170 is still in the lock state. - As shown in
Fig. 11 , the driving device further moves thedrive bracket 160 to the plug-out position at the right side inFig. 11 , and the second guide bearing 141A is located at the left end in thefirst guide groove 161. Thus, therear arm 140 is rotated clockwise about thefourth rotation shaft 122 in a plan view and separates thedoor bracket 110 from themain block 120. As therear arm 140 rotates, thefront arm 130 rotates about thesecond rotation shaft 121. This generates the plug-out action of thedoor leaf 103. In this state, thesecond engagement portion 172 of thelock link 170 is engaged with the third guide bearing 153A of theguide link 150. Thus, thelock link 170 cannot be rotated, and the lock state is maintained. - As shown in
Fig. 12 , thedrive bracket 160, which is moved to the plug-out position of thedoor leaf 103, pushes themain block 120 in an opening direction. Thelock link 170 pushes theguide link 150 and rotates to shift to an unlock state. Thedoor leaf 103, which remains in the plug-out state, moves together with themain block 120. Thelock link 170 rotates and is disengaged from thelock roller 180. - As shown in
Fig. 12 , as the driving device moves thedrive bracket 160 further toward the right as viewed in the drawing, the second guide bearing 141A, which is located in thefirst guide groove 161 at the left end, moves further toward the right as viewed in the drawing together with thedrive bracket 160. Thus, therear arm 140 is further rotated clockwise about thefourth rotation shaft 122 in a plan view and separates thedoor bracket 110 from themain block 120 by the maximum extent. As therear arm 140 rotates, thefront arm 130 rotates clockwise about thesecond rotation shaft 121 in a plan view. This projects thedoor leaf 103 out of theentrance 102 in a plug-out state. In this state, thefront arm 130 is rotated clockwise about thesecond rotation shaft 121 to separate the first guide bearing 131A from the right surface of theguide link 150. - Movement of the
drive bracket 160 toward the right as viewed inFig. 12 moves themain block 120 toward the right as viewed inFig. 12 . This rotates thelock link 170 counterclockwise in a plan view. In this state, thesecond engagement portion 172 of thelock link 170 pushes the third guide bearing 153A of theguide link 150 and rotates counterclockwise. This disengages theengagement portion 173 of the lock link 170 from thelock roller 180 to shift to an unlock state. The third guide bearing 153A, which is rotated counterclockwise and disengaged from thesecond engagement portion 172, engages athird engagement portion 174, which is arranged adjacent to thesecond engagement portion 172 of thelock link 170. Further, when the third guide bearing 153A of theguide link 150 is pushed and theguide link 150 is rotated clockwise, thefirst engagement portion 152 of theguide link 150 engages the first guide bearing 131A. Thus, theguide link 150 restricts rotation of thefront arm 130 and maintains thedoor leaf 103 in the plug-out state. - The
lock link 170, theguide link 150, and thefront arm 130 are fixed as shown inFig. 13 . Thus, thedoor leaf 103 and themain block 120, which remain in the plug-out state, are moved in the widthwise direction of theentrance 102 in accordance with the movement of thedrive bracket 160 to fully open theentrance 102. Thedoor leaf 103 and themovable body 105 are located at the fully open position when theentrance 102 is fully open. - As shown in
Fig. 13 , when generating a plug-in action with thedoor leaf 103, that is, when thedoor leaf 103 is moved inward from the position projected out of theentrance 102 to its original position, the driving device moves thedrive bracket 160 toward the left and restricts rotation of thefront arm 130. This integrally moves thedoor bracket 110 and themain block 120 toward the left in the plug-out state. When theengagement portion 173 of the lock link 170 contacts and engages thelock roller 180, thelock link 170 is rotated clockwise about theeighth rotation shaft 171 and disengages thefirst engagement portion 152 of the guide link 150 from the first guide bearing 131A. In a state in which thefront arm 130 is allowed to rotate, movement of thedrive bracket 160 toward the left rotates therear arm 140 counterclockwise about thefourth rotation shaft 122. This also rotates thefront arm 30 counterclockwise and moves thedoor bracket 110 toward themain block 120. Thus, thedoor leaf 103 is shifted to a plug-in state in which thedoor leaf 103 is not projected outward from theentrance 102. - With the plug door opening/
closing device 104, movement of thedrive bracket 160 in the widthwise direction of theentrance 102 allows a plug action to be generated to move thedoor leaf 103 in the vehicle transverse direction. Further, movement of thedrive bracket 160 in the widthwise direction of theentrance 102 allows thedoor leaf 103 to be maintained in a plug-out state and also allows an opening/closing action to be generated with thedoor leaf 103. Moreover, the plug door opening/closing device 104 transmits movement of thedrive bracket 160 to therear arm 140 in order to generate a plug action and opening/closing action with thedoor leaf 103. Further, engagement of theguide link 150 with thefront arm 130 maintains thedoor leaf 103 in a plug-out state. Thus, thefront arm 130 and therear arm 140 share functions so that maintenance can be performed separately for each function. - As described above, the present embodiment has the advantages described below.
- (1) As the
movable body 105 moves thedoor leaf 103 from a plug-out position to the fully open position, thedoor leaf 103 can be moved in the widthwise direction of theentrance 102 while thelock link 170 maintains the relative positions of themovable body 105 and thedoor leaf 103. Thus, a plug action can be generated without a guide rail. This allows for reduction in the space occupied by the plug door opening/closing device 104. - (2) The
lock link 170 restricts movement that changes the relative distance between thedoor leaf 103 and themain block 120 of theplug mechanism 106. Thus, even if thedoor leaf 103 is operated in a plug-out state, changes are restricted in the relative distance between themain block 120 and thedoor leaf 103. - (3) The link mechanism changes the relative distance between the the
door leaf 103 and themain block 120 in the plugging direction. Thus, when thedoor leaf 103 approaches themain block 120, the link mechanism folds and reduces the space occupied by the plug door opening/closing device 104. - (4) The plug-in action of the
plug mechanism 106, that is, movement of thedoor leaf 103 from the plug-out position to the fully closed position generated by theplug mechanism 6 locks themain block 120 with thelock roller 180. This restricts movement of themain block 120 even if thedoor leaf 103 is operated in a fully closed state. - The embodiments may be modified as follows.
- In the above embodiments, the front arm 30 (130) and the rear arm 40 (140), which form a four-joint link, do not have to be equal in length. In such a case, the front end and rear end of the door leaf 3 (103) in the widthwise direction of the entrance 2 (102) move along different paths. In particular, when the rear arm 40 (140) is longer than the front arm 30 (130), the distance can be shortened between the front end of the door leaf 3 (103) and the entrance 2 (102).
- In the above embodiments, the stopper may be a structure that restricts movement of the second guide bearing 52A (141A) in the second guide groove 61 (first guide groove 161) of the drive bracket 60 (160). Further, the outer side of the
guide link 50 or thefront arm 130 may be directly fixed so that rotation of theguide link 50 in the first embodiment or rotation of thefront arm 130 in the second embodiment is restricted in the rotation direction that cancels a plug-out state. - In the above embodiments, the stopper may be a ratchet that allows for rotation in the plug-out direction and restricts rotation in the opposite direction.
- The plug door opening/closing device 4 (104) in each of the above embodiments includes the link mechanism as the plugging unit that generates a plug action with the door bracket 10 (110). However, a structure other than the link mechanism can be employed. For example, a stopper arranged on the main block may be used to maintain a door leaf of a plugging unit in a plug-out state.
- For example, a slider mechanism may be employed as the plugging unit. As shown in
Figs. 14 and15 , a plug door opening/closing device 204 couples adoor bracket 210 and amain block 220 with afirst slider mechanism 230 and asecond slider mechanism 240. Thefirst slider mechanism 230 and thesecond slider mechanism 240 act as the plugging unit. Thefirst slider mechanism 230 and thesecond slider mechanism 240 extend to shift adoor leaf 203 to a plug-out state. Further, the plug door opening/closing device 204 includes anengagement member 250 that serves as a stopper and engages the extended portion of thefirst slider mechanism 230. When thefirst slider mechanism 230 is extended, theengagement member 250 is rotated about arotation shaft 251 and inserted into the extended portion of thefirst slider mechanism 230 to maintain thedoor bracket 210 in the plug-out state. - In the above embodiments, the stopper mechanically restricts movement of the plugging unit. Instead, the stopper may electrically restrict movement of the plugging unit. That is, the stopper may be powered on and off to actuate a member restricting movement of the plugging unit.
- In the above embodiments, the driving device is exemplified as a ball screw. However, the driving device may be any device that can horizontally move the drive bracket 60 (160) such as a belt.
- 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 invention. 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 (5)
- A plug door opening/closing device (4; 104) configured to move a door leaf (3; 103) in a widthwise direction of an opening (2; 102) to open or close the opening (2; 102), the plug door opening/closing device (4; 104) being characterized by:a movable body (5; 105) moved together with the door leaf (3; 103) from a fully closed position via a plug-out position to a fully open position; anda stopper (70; 170) moved together with the movable body (5; 105) in a state maintaining relative positions of the movable body (5; 105) and the door leaf (3; 103) as the door leaf (3; 103) moves from the plug-out position to the fully open position.
- The plug door opening/closing device (4; 104) according to claim 1, characterized in that:the movable body (5; 105) includes a base (20; 120) moved in the widthwise direction of the opening (2; 102) and a plugging unit (6; 106) configured to change a relative distance between the base (20; 120) and the door leaf (3; 103) in a plugging direction that is orthogonal to the widthwise direction of the opening (2; 102);wherein the stopper (70; 170) restricts movement of the plugging unit (6; 106).
- The plug door opening/closing device (4; 104) according to claim 2, characterized in that the plugging unit (6; 106) includes a link mechanism (30, 40; 130, 140).
- The plug door opening/closing device (4; 104) according to claim 2, characterized in that the plugging unit (6; 106) includes a four-joint link (30, 40: 130, 140).
- The plug door opening/closing device (4; 104) according to any one of claims 2 to 4, characterized by a lock mechanism (80; 180) configured to lock the base (20; 120) at the fully closed position by movement of the plugging unit (6; 106) when the door leaf (3; 103) is moved from the plug-out position to the fully closed position.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018060562A JP2019173327A (en) | 2018-03-27 | 2018-03-27 | Plug door opening/closing device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3546683A1 true EP3546683A1 (en) | 2019-10-02 |
Family
ID=65766885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19162114.3A Withdrawn EP3546683A1 (en) | 2018-03-27 | 2019-03-12 | Plug door opening/closing device |
Country Status (3)
Country | Link |
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EP (1) | EP3546683A1 (en) |
JP (1) | JP2019173327A (en) |
CN (1) | CN110306900A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10169298A (en) | 1996-10-21 | 1998-06-23 | Ind Einrichtungen Fertigungs Ag | Rocking sliding door for vehicle |
DE19735181A1 (en) * | 1997-08-14 | 1999-02-25 | Webasto Tuersysteme Gmbh | Vehicle swing and sliding door drive |
EP2604488A1 (en) * | 2011-06-13 | 2013-06-19 | Nanjing Kangni Mechanical & Electrical Co., Ltd | Built-in plug-pull door device for track vehicle |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5483769A (en) * | 1993-12-07 | 1996-01-16 | Mark Iv Transportation Products Corporation | Door drive equipment for mass transit vehicle |
JP3705153B2 (en) * | 2001-05-30 | 2005-10-12 | 三協アルミニウム工業株式会社 | sash |
JP3875967B2 (en) * | 2003-08-12 | 2007-01-31 | ナブテスコ株式会社 | Plug door device |
JP4584021B2 (en) * | 2005-05-13 | 2010-11-17 | ナブテスコ株式会社 | Opening and closing device with lock |
DE202005015166U1 (en) * | 2005-09-27 | 2007-02-15 | Gebr. Bode Gmbh & Co. Kg | Door for bus or tram to be swiveled and slid to side for opening, comprises locking arrangement for spreading lever |
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 |
JP2017137680A (en) * | 2016-02-03 | 2017-08-10 | トヨタ車体株式会社 | Door device for vehicle |
-
2018
- 2018-03-27 JP JP2018060562A patent/JP2019173327A/en active Pending
-
2019
- 2019-03-12 CN CN201910185542.3A patent/CN110306900A/en not_active Withdrawn
- 2019-03-12 EP EP19162114.3A patent/EP3546683A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10169298A (en) | 1996-10-21 | 1998-06-23 | Ind Einrichtungen Fertigungs Ag | Rocking sliding door for vehicle |
DE19735181A1 (en) * | 1997-08-14 | 1999-02-25 | Webasto Tuersysteme Gmbh | Vehicle swing and sliding door drive |
EP2604488A1 (en) * | 2011-06-13 | 2013-06-19 | Nanjing Kangni Mechanical & Electrical Co., Ltd | Built-in plug-pull door device for track vehicle |
Also Published As
Publication number | Publication date |
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CN110306900A (en) | 2019-10-08 |
JP2019173327A (en) | 2019-10-10 |
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