EP2079894B1 - Opening and closing apparatus with lock - Google Patents

Opening and closing apparatus with lock Download PDF

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Publication number
EP2079894B1
EP2079894B1 EP07831180A EP07831180A EP2079894B1 EP 2079894 B1 EP2079894 B1 EP 2079894B1 EP 07831180 A EP07831180 A EP 07831180A EP 07831180 A EP07831180 A EP 07831180A EP 2079894 B1 EP2079894 B1 EP 2079894B1
Authority
EP
European Patent Office
Prior art keywords
locking
sliding doors
link mechanism
state
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP07831180A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2079894A4 (en
EP2079894A1 (en
Inventor
Kazutama Takahashi
Katsuji Kawasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nabtesco Corp
Original Assignee
Nabtesco Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2006304913A external-priority patent/JP4994792B2/ja
Priority claimed from JP2006304912A external-priority patent/JP4938416B2/ja
Priority claimed from JP2006304914A external-priority patent/JP4975413B2/ja
Application filed by Nabtesco Corp filed Critical Nabtesco Corp
Priority to PL07831180T priority Critical patent/PL2079894T3/pl
Publication of EP2079894A1 publication Critical patent/EP2079894A1/en
Publication of EP2079894A4 publication Critical patent/EP2079894A4/en
Application granted granted Critical
Publication of EP2079894B1 publication Critical patent/EP2079894B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D19/00—Door arrangements specially adapted for rail vehicles
    • B61D19/003—Door arrangements specially adapted for rail vehicles characterised by the movements of the door
    • B61D19/005—Door arrangements specially adapted for rail vehicles characterised by the movements of the door sliding
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/08—Locks or fastenings for special use for sliding wings
    • E05B65/0811—Locks or fastenings for special use for sliding wings the bolts pivoting about an axis perpendicular to the wings
    • E05B65/0829—Locks or fastenings for special use for sliding wings the bolts pivoting about an axis perpendicular to the wings mounted on the slide guide, e.g. the rail
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/02—Locks for railway freight-cars, freight containers or the like; Locks for the cargo compartments of commercial lorries, trucks or vans
    • E05B83/04—Locks for railway freight-cars, freight containers or the like; Locks for the cargo compartments of commercial lorries, trucks or vans for sliding wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/36—Locks for passenger or like doors
    • E05B83/40—Locks for passenger or like doors for sliding doors
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B2047/0014—Constructional features of actuators or power transmissions therefor
    • E05B2047/0018—Details of actuator transmissions
    • E05B2047/0026—Clutches, couplings or braking arrangements
    • E05B2047/0031—Clutches, couplings or braking arrangements of the elastic type
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/32—Details of the actuator transmission
    • E05B81/34—Details of the actuator transmission of geared transmissions
    • E05B81/38—Planetary gears
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/32—Details of the actuator transmission
    • E05B81/46—Clutches
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/245—Bolts rotating about an axis with a pair of bifurcated bolts
    • 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
    • E05Y2201/23—Actuation thereof
    • E05Y2201/232—Actuation thereof by automatically acting means
    • E05Y2201/236—Actuation thereof by automatically acting means using force or torque
    • E05Y2201/238—Actuation thereof by automatically acting means using force or torque reaction force or torque
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/51—Application of doors, windows, wings or fittings thereof for vehicles for railway cars or mass transit vehicles

Definitions

  • the present invention relates to an opening and closing apparatus with lock, enabling to perform opening and closing movements and locking in a fully closed position of slide-apart type sliding doors, mounted on a housing in a reciprocatingly movable manner.
  • Patent Document 1 Japanese Unexamined Patent Application No. 2000-142392 .
  • two sliding doors are arranged as slide-apart type opening and closing doors by being coupled via a rack and pinion mechanism, and rail moving members that suspend the sliding doors and an armature of a linear motor for opening/closing drive of the sliding doors are coupled via a cushioning member that includes a cushioning spring.
  • the sliding doors are moved in closing directions by driving the armature of the linear motor, and even when the sliding doors reach a fully closed position, the armature is driven further so as to stretch the spring of the cushioning member.
  • a metal pressing member disposed at a front end of the armature, then pressingly moves a sliding cam device to slide against a return spring, and since a cam follower that descends in accompaniment also makes a latch lock descend, the latch lock becomes latched in a hole provided in a rack of the rack and pinion mechanism, thereby realizing locking of the sliding doors in the fully closed position.
  • the cushioning member which is a mechanism that switchingly allocates the driving force of the linear motor to the opening/closing drive of the sliding doors and the pressing movement of the sliding cam device, is arranged to move slidingly along with the sliding doors.
  • the overall arrangement is thus made complex, a space for the movement stroke of the cushioning member needs to be secured, and a simple and compact arrangement cannot be realized for the sliding door opening and closing lock apparatus.
  • the sliding cam device is pressingly moved so as to stretch the cushioning spring of the cushioning member in the fully closed position of the sliding doors, when, for example, a load (a resistance against the closure of the sliding doors) is applied by wind pressure, etc., to the doors immediately before the fully closed position is reached, the cushioning spring becomes stretched before the sliding doors reach the fully closed position. Consequently, the metal pressing member at the front end of the armature pressingly moves the sliding cam device at a stage that is too early, cause the latch lock to descend without the positions of the latch lock and the hole of the rack being matched, and may thereby cause a breakage of the latch lock or the hole or constraining of the sliding doors before the fully closed position is reached (in the open state).
  • the linear motor loses its driving force due to malfunction of the linear motor, power supply failure due to power outage, or other circumstance, because the armature and the metal pressing member are then pulled in the direction of releasing the pressing of the sliding cam device and the sliding cam device is also forced back by the return spring, the latch lock rises along with the cam follower and the lock becomes released. This means that a closed lock becomes released unintendedly upon malfunction or power supply failure. In a case where the sliding doors are used as side doors of a railway vehicle, this means that the doors become open before the vehicle stops and is thus unfavorable in terms of safety as well.
  • the present invention has been made in view of the above circumstances, and an object thereof is to provide an opening and closing apparatus with lock with a simple and compact arrangement that enables secure locking of slide-apart type sliding doors and enables opening/closing and closed locking of the sliding doors to be performed with a single actuator.
  • the present invention relates to an opening and closing apparatus with lock, enabling to perform opening and closing movements and locking in a fully closed position of slide-apart type sliding doors, mounted on a housing in a reciprocatingly movable manner.
  • an opening and closing apparatus with lock according to the present invention has the aspects described below. That is, the opening and closing apparatus with lock according to the present invention has any of the following aspects in a solitary form or in a suitably combined form.
  • a first aspect of an opening and closing apparatus with lock includes: a rack and pinion mechanism, having a pair of racks, respectively mounted on a pair of slide-apart type sliding doors that are movable reciprocatingly with respect to a housing, and a pinion engaged with the pair of racks; an actuator, functioning as an opening/closing drive source of the sliding doors; a locking mechanism mounted on the housing and enabling to lock the pair of sliding doors in a fully closed position by constraining respective movements of locking members that are respectively fixed to the respective sliding doors of the pair of sliding doors; a switching mechanism for switching the locking mechanism between a locked state and an unlocked state; and a planetary gear mechanism, having an input portion, into which a driving force of the actuator is input, a first output portion, enabling to output the driving force to the pinion, and a second output portion, enabling to output the driving force to the switching mechanism; and when the sliding doors are in the fully closed position, the driving force
  • each of the pair of sliding doors can be locked independently.
  • the state, in which the movements of both sliding doors are locked can be maintained.
  • the rack and pinion mechanism is functioning normally, even if the lock of one of the sliding doors becomes released due to malfunction, etc., because the one sliding door is coupled to the other sliding door via the rack and pinion mechanism, as long as the lock of the other sliding door is effective, the one sliding door can be maintained in the locked state.
  • the slide-apart type sliding doors can thus be locked more securely.
  • the power of the actuator is allocated via the planetary gear mechanism to drive the pinion of the rack and pinion mechanism on one hand and drive the switching mechanism on the other. Because the arrangement for power transmission (allocation) from the actuator is thus housed in a compact space, the structure can be simplified and a compact opening and closing apparatus with lock can be provided.
  • the driving force from the actuator is allocated using not a cushioning spring as in Patent Document 1 but a planetary gear mechanism, even if the driving force is lost due to actuator malfunction, etc., in the state where the sliding doors are locked at the closed position, a force in a direction of releasing the lock is not applied to the switching mechanism, etc., and unintended unlocking is prevented.
  • a second aspect of the opening and closing apparatus with lock according to the present invention is that the switching mechanism has a switching member enabling to switch the locking mechanism between the locked state and the unlocked state by moving according to the drive of the second output portion, and the locking mechanism is arranged so that the movement of the switching member is prevented when the sliding doors are in positions other than the fully closed position and the movement of the switching member is allowed when the sliding doors are in the fully closed position.
  • the locking operation is performed when the sliding doors have reached the fully closed position securely. That is, the locking operation is prevented from being performed at a timing that is too early in the driving of the sliding doors in closing directions, and breakage of the locking mechanism and constraining of the sliding doors before the reaching of the fully closed position are thereby prevented.
  • a third aspect of the opening and closing apparatus with lock according to the present invention is that the locking mechanism includes a link mechanism, deformable to a rectilinear state and to an inflected state according to the movement of the switching member, and a link retaining mechanism, retaining the link mechanism in the inflected state when the sliding doors are in positions other than the fully closed position, and when the sliding doors are in the fully closed position, the link mechanism deforms to the rectilinear state and thereby constrains the movement of the locking members fixed to the sliding doors.
  • the movements of the sliding doors can be locked in the fully closed position by putting the link mechanism in the rectilinear state, and because in positions other than the fully closed position, the link mechanism is held in the inflected state by the link retaining mechanism, the locking operation is performed after the sliding doors have reached the fully closed position.
  • the locking mechanism can thus be formed compactly because it is driven using the link mechanism and stable drive can be realized because the locking mechanism is driven mechanically.
  • a fourth aspect of the opening and closing apparatus with lock according to the present invention is that each locking member is constituted of a locking pin, fixed to the sliding door so as to extend in a vertical direction, the link retaining mechanism is constituted of a pair of engaging members, rotatably installed near both ends of the link mechanism and each having a first engaging portion, engaging with the locking pin in the fully closed position, and a second engaging portion, engaging with an end of the link mechanism in the rectilinear state in the fully closed position, and the engaging members prevent the movement of the switching member by preventing the transition of the link mechanism to the rectilinear state when the sliding doors are in positions other than the fully closed position, and allow the movement of the switching member by being urged by the locking pins to rotate to positions enabling engagement of the ends of the link mechanism with the second engaging portions during movement of the sliding doors in the closing directions.
  • the engaging members engage with the locking pins.
  • the engaging members engage with the ends of the link mechanism and become constrained in rotational movement.
  • the locking pins are thereby constrained in movement in the state of being engaged with the engaging members.
  • a fifth aspect of the opening and closing apparatus with lock according to the present invention is that the switching member is constituted of a locking slider enabling to move slidingly in one direction with respect to the locking mechanism and having a slit portion of a curved shape at a bottom surface, the link mechanism operates within a plane parallel to the bottom surface of the locking slider and has a coupling pin, disposed at one coupling point, inserted in the slit portion, and the link mechanism is deformed to the rectilinear state and the inflected state by the coupling pin moving along the slit portion.
  • the link mechanism can be deformed to the rectilinear state and the inflected state by movement of the locking slider in one direction without interposing another member between the locking slider and the link mechanism.
  • the installation space of the locking mechanism can thus be made small.
  • a sixth aspect of the opening and closing apparatus with lock according to the present invention is that the link mechanism is deformable to the rectilinear state and the inflected state within a horizontal plane.
  • the sliding doors when the sliding doors reach the fully closed position, the sliding doors can be locked by the switching mechanism being driven and the link mechanism being deformed to the rectilinear state within the horizontal plane. Because the locking mechanism thus puts the sliding doors in the locked state using the link mechanism that operates within the horizontal plane, the installation space of the locking mechanism can be made small in the height direction.
  • a seventh aspect of the opening and closing apparatus with lock according to the present invention is that the link mechanism has a link portion, rotatably fixed to the housing, and a movement of an end of the link mechanism is restricted by a rectilinear guide groove provided in the housing.
  • the position of the link mechanism with respect to the housing can be fixed without obstructing the operation of the link mechanism.
  • the movement of the end of the link mechanism can be restricted to a straight line by the guide groove of the housing, and a link mechanism that can be deformed to the rectilinear state and the inflected state can thus be formed by a simple arrangement.
  • each locking member is constituted of a locking pin, fixed to the sliding door so as to extend in a vertical direction
  • the locking mechanism further includes an engaging member, rotatably installed within a horizontal plane near an end of the link mechanism and having a first engaging portion, engaging with a locking pin in the fully closed position, and a second engaging portion, engaging with the end of the link mechanism in the rectilinear state in the fully closed position.
  • the locking mechanism that operates within the horizontal plane can be made readily engageable with the locking pin.
  • the direction in which the link mechanism extends to the rectilinear state can be set to any direction that enables the constraining of the rotation of the engaging member.
  • a design can be made readily to prevent a force, which deforms the link mechanism from the rectilinear state to the inflected state in the locked state, from acting from the engaging member, and the locked state can be retained more reliably.
  • a ninth aspect of the opening and closing apparatus with lock according to the present invention is that the switching mechanism has a switching member, movable within a horizontal plane according to the driving of the second output portion, and the link mechanism can be deformed to the rectilinear state and the inflected state by movement of a coupling pin, disposed at a coupling point of the link mechanism, in accordance with the movement of the switching member.
  • the switching member is movable within a horizontal plane, the installation space can be made small in the height direction. Also, the switching member can switch the state of the link mechanism by use of the coupling pin that constitutes the link mechanism, and a simple arrangement with a low number of parts can thus be realized.
  • a tenth aspect of the opening and closing apparatus with lock according to the present invention is that the switching member is a locking slider enabling to move slidingly in one direction within a horizontal plane according to the drive of the second output portion and having a slit portion of a curved shape at a bottom surface, a coupling pin, disposed at one coupling point of the link mechanism, is inserted in the slit portion, and the link mechanism can be deformed to the rectilinear state and the inflected state by the coupling pin, disposed at the coupling point of the link mechanism, moving along the slit portion according to the movement of the locking slider.
  • the movement of the link mechanism can be restricted by using the slit portion at the bottom surface of the locking slider enabling to move slidingly within the horizontal plane. Because the slit portion has a curved shape, an arrangement that guides the coupling pin in a direction that differs from the movement direction of the locking slider can be realized in a simple manner.
  • an eleventh aspect of the opening and closing apparatus with lock is that the opening and closing apparatus with lock further includes: an elastic member; and a collision detection unit, disposed in the housing and stopping the drive of the actuator when a deformation amount of the elastic member reaches a predetermined deformation amount during a closing operation of the sliding doors; and the second output portion is enabled to output the driving force of the actuator to the elastic member.
  • the drive of the actuator is stopped by the collision detection unit. Because the collision detection unit is disposed in the housing as is the actuator, door catching and collision during the sliding door closing operation can be detected without wiring becoming complicated. With this arrangement, collision detection is enabled regardless of whether the sliding doors are accelerating or decelerating and collision detection can be performed across the entire movement range of the sliding doors.
  • a twelfth aspect of the opening and closing apparatus with lock according to the present invention is that the elastic member is disposed between the second output portion and the switching member.
  • the output of the second output portion can be used to drive the switching member to switch the locking mechanism and make a force act on the elastic member at the same time.
  • the driving force from the second output portion in the switching of the locking mechanism is allocated between the elastic member, installed at the other position, and the switching member, when the elastic member is installed between the second output portion and the switching member, the force applied to the elastic member is made to act on the switching member as well, thus enabling the collision detection and the locking operation to be performed efficiently.
  • a thirteenth aspect of the opening and closing apparatus with lock according to the present invention is that the collision detection unit is constituted of a limit switch that stops the drive of the actuator upon detecting that a rotation angle of the second output portion has become no less than a predetermined rotation angle.
  • the limit switch detects the rotation angle of the second output portion, which rotates in correspondence to the deformation of the elastic member, to stop the drive of the actuator.
  • the collision detection unit can thus be arranged with a simple arrangement.
  • a fourteenth aspect of the opening and closing apparatus with lock according to the present invention is that the elastic member is disposed so as to be balanced with a running resistance when the sliding doors are performing a normal closing operation.
  • performing a normal closing operation refers to a state where a force that obstructs the operation of the sliding doors is not acting from the exterior, and because an elastic force that is balanced with the running resistance during this normal closing operation is made to act on the second output portion by the elastic member, the elastic force that is made to act by the elastic member is made smaller.
  • the elastic member can thus be installed in a readily deformable state. Because the elastic member is thereby made more readily deformable by an increase in the running resistance of the sliding doors, detection of higher sensitivity is enabled. Also in this case, an impact applied from a sliding door to an object of collision in a collision process can be relaxed significantly.
  • FIG. 1 is a front view of an embodiment, in which an opening and closing apparatus with lock is installed in a vehicle opening/closing door.
  • FIG. 2 is a front view of principal portions of an arrangement of the opening and closing apparatus with lock in an unlocked state.
  • FIG. 3 is a schematic view of an arrangement of a locking mechanism, shown in FIG. 2 , as viewed from a lower side of the locking mechanism (from a direction indicated by an arrow X in FIG. 2 ).
  • FIG. 4 is a front view of principal portions of the arrangement of the opening and closing apparatus with lock in a locked state.
  • FIG. 5 is a schematic view of the locking mechanism, shown in FIG.
  • FIG. 6 is a schematic partial sectional view of the locking mechanism and a locking slider as viewed in a direction of movement of the locking slider (from a direction indicated by an arrow Y in FIG. 4 ).
  • a planetary gear mechanism is positioned at a C1 side, and sliding doors are positioned at a C2 side.
  • the vehicle opening and closing door 1, shown in FIG. 1 is arranged as a door enabling to open and close an opening formed in a side wall of a railway vehicle or other vehicle and has a pair of slide-apart type left and right sliding doors 11A and 11B.
  • the two sliding doors 11A and 11B are disposed in a manner enabling reciprocating movement along a guide rail 2 installed horizontally above the opening.
  • hangers 3A and 3B are fixed to respective upper edges of the sliding doors 11A and 11B, and door rollers 4 are axially supported in a rotatable manner in each of the hangers 3A and 3B.
  • Each door roller 4 is enabled to roll along the guide rail 2.
  • the vehicle opening and closing door 1 is arranged to be opened and closed and be automatically locked so as not to become open inadvertently in a closed state by the opening and closing apparatus with lock according to the embodiment of the present invention. It is dangerous for a door of a railway vehicle or other vehicle to become open while the vehicle is running and such a door is required to be locked securely so as not to become open inadvertently during running.
  • a plate-like base 5 is affixed to an upper portion (upper side of the opening) of the side wall (housing) of the vehicle, and two racks 7A and 7B are supported in a rack support 6 fixed to the base 5.
  • the racks 7A and 7B are disposed with longitudinal directions thereof being aligned horizontally (parallel to the guide rail 2), and are supported by slide supports 8 in a manner enabling sliding in the longitudinal directions (horizontal directions).
  • the two racks 7A and 7B are disposed parallel to each other with an appropriate interval being formed in an up/down direction and are disposed so that teeth thereof face each other.
  • a pinion 9 is rotatably disposed so as to be engaged simultaneously to the teeth of both of the two racks 7A and 7B.
  • the pinion 9 is disposed at a position, which is a central position in a left/right direction above the opening of the opening and closing door 1 and is a position that is sandwiched from above and below by the two racks 7A and 7B.
  • Arm members 13A and 13B are respectively installed at one ends of the two racks 7A and 7B.
  • the arm members 13A and 13B are respectively fixed to the hangers 3A and 3B via coupling members 15a and 15b.
  • the one ends of the racks 7A and 7B are respectively coupled to the corresponding sliding doors 11A and 11B via the arm members 13A and 13B.
  • a rack and pinion mechanism 10 is constituted of the racks 7A and 7B and the pinion 9, and the two sliding doors 11A and 11B are driven to open and close by the rack and pinion mechanism 10.
  • the rack and pinion mechanism 10 By coupling the left and right sliding doors 11A and 11B to each other, the rack and pinion mechanism 10 also serves a function of realizing symmetrical opening and closing of the sliding doors 11A and 11B.
  • locking pins 14A and 14B (locking members), extending vertically upward, are respectively fixed to the pair of arm members 13A and 13B.
  • the movement of the pair of sliding doors 11A and 11B is locked by the locking pins 14A and 14B being constrained by a locking mechanism 60 to be described later.
  • the planetary gear mechanism 20 is supported in the base 5 (see FIGS. 2 and 4 ).
  • the planetary gear mechanism 20 has a sun gear 21 (input portion), axially supported in a rotatable manner, planetary gears 24, disposed in plurality at an outer circumference of the sun gear 21 and enabled to undergo rotation and revolution while being engaged with the sun gear 21, an internal gear 22 (first output portion), having internal teeth engaging with the planetary gears 24 at an outer side of the planetary gears 24, and a carrier 23 (second output portion), rotatably supporting the planetary gears 24.
  • the three components of the sun gear 21, the internal gear 22, and the carrier 23 are positioned along the same axial line and are disposed so as to be respectively rotatable relative to each other.
  • the axial line of these three components is also matched with an axial line of the pinion of the rack and pinion mechanism 10.
  • An output shaft of a direct drive type electric motor (actuator), omitted from illustration and enabled to rotate forward and in reverse, is coupled to the sun gear 21.
  • the coupling may be achieved via a suitable speed reducing mechanism.
  • a main unit portion of the electric motor is fixed to the side wall of the vehicle.
  • the internal gear 22 is coupled to the pinion 9 of the rack and pinion mechanism 10 via an unillustrated bolt, etc.
  • the carrier 23 is coupled to a pulling member 70 for pulling a locking slider 33 (switching member) for switching the below-described locking mechanism 60 between a locked state and an unlocked state.
  • the pulling member 70 and the locking slider 33 are installed in a manner enabling reciprocating movement in one direction along a guide shaft 72, fixed with respect to the base 5 and extending in parallel to the racks 7A and 7B, and constitute a switching mechanism for switching of the locking mechanism.
  • the pulling member 70 is coupled to the carrier 23 so as to be movable in the one direction according to the rotation of the carrier 23.
  • a torque limiting spring 71 (elastic member) of coil spring form is disposed between the pulling member 70 and the locking slider 33.
  • the torque limiting spring 71 makes an elastic force act on the pulling member 70 and the locking slider 33 so as to push the pulling member 70 against the locking slider 33. That is, the torque limiting spring 71 is disposed so as to suppress relative movement of the pulling member 70 with respect to the locking slider 33.
  • the locking slider 33 has, at its upper end, a mounting portion 33a and a mounting portion 33b that are spaced apart by a predetermined interval in the movement direction and are formed to be slidable with respect to the guide shaft 72.
  • the locking slider 33 also has a front surface portion 33c, extending downward from the mounting portion 33a and the mounting portion 33b, and a bottom surface portion 33d, formed so as to be inflected by 90 degrees in a direction directed inward from the paper surface in FIG. 2 from a lower end of the front surface portion 33c (see FIGS. 3 , 5 , and 6 ).
  • the pulling member 70 is mounted to the guide shaft 72 between the mounting portion 33a and the mounting portion 33b, and the torque limiting spring 71 is mounted on the guide shaft 72 between the pulling member 70 and the mounting portion 33b at a front end side in a locking direction (direction indicated by an arrow A1 in FIGS. 3 and 5 ; referred to hereinafter as "locking direction A1") of the locking slider 33.
  • locking direction A1 a locking direction
  • the torque limit spring 71 is mounted in a state of being compressed in an axial direction (an elastically deformed state)
  • the pulling member 70 receives an urging force directed toward the mounting portion 33a and an end of the pulling member 70 is thereby retained in a state of contacting the mounting portion 33a.
  • the locking slider 33 has, at the bottom surface portion 33d, a slit 33e (slit portion) of curved shape.
  • the slit 33e includes a first hole portion a, extending in parallel to the movement direction, and a second hole portion B, formed so as to be continuous to the first hole portion a and curve smoothly in a direction substantially perpendicular to the movement direction.
  • FIG. 7 is a schematic partial sectional view of the locking mechanism 60 in the locked state as viewed from a horizontal direction.
  • the planetary gear mechanism is positioned at a C1 side
  • the sliding doors are positioned at a C2 side.
  • the locking mechanism 60 is a mechanism that operates within a horizontal plane and is installed so as to be adjacent to an upper side (planetary gear mechanism 20 side) of the bottom surface portion 33d of the locking slider 33 and so as to be fixed in position with respect to the base 5 (see FIGS. 2 and 4 ).
  • the locking mechanism 60 is constituted of a link mechanism 61 that is deformable to a rectilinear state and an inflected state within a horizontal plane and a link retaining mechanism 65 that operates within the horizontal plane.
  • the link mechanism 61 is formed by coupling three links 62a, 62b, and 62c.
  • the central link 62a is rotatably fixed with respect to the base 5 by a coupling pin 63a.
  • One end of the central link 62a is coupled to one end of the link 62b by a coupling pin 63b.
  • the other end of the central link 62a is coupled to one end of the link 62c by a guiding coupling pin 63c.
  • the links 62b and the link 62c have pins 63d and 63e at ends at the sides opposite the points of coupling to the link 62a.
  • the pins 63d and 63e positioned at the ends of the link mechanism 61, have ends thereof respectively inserted in guide grooves 80A and 80B (indicated by alternate long and two short dashes lines in FIGS. 3 and 5 ), formed rectilinearly and parallel to the movement direction of the locking slider 33, and are installed in a manner enabling movement along the guide grooves 80A and 80B. That is, the movements of the pins 63d and 63e are respectively restricted by the guide grooves 80A and 80B.
  • the ends of the pins 63d and 63e that are inserted into the guide grooves 80A and 80B are formed as rollers (see FIG.
  • the ends of the pins 63d and 63e at the locking slider 33 side are also formed as rollers (see FIG. 7 ), enabling friction during movements along edges of engaging members 66A and 66B, to be described below, to be reduced and the locking operation to be stabilized.
  • An end at the locking slider 33 side of the guiding coupling pin 63c of the link mechanism 61 is formed as a roller and is inserted in the slit 33e of the locking slider 33.
  • the position of the guiding coupling pin 63c is thus restricted by the position of the locking slider 33.
  • the link mechanism 61 can thus be switched between the rectilinear state and the inflected state by the movement of the locking slider 33.
  • the link retaining mechanism 65 is constituted of a pair of engaging members 66A and 66B, installed symmetrically with respect to the link mechanism 61 (with respect to the coupling pin 63a) at positions near the respective ends of the link mechanism 61 and in a manner enabling rotations within a horizontal plane, and a coupling spring 69, coupling the pair of engaging members to each other.
  • the engaging members 66A and 66B respectively have, at peripheral portions thereof, first engaging portions 67A and 67B and second engaging portions 68A and 68B, and rotation axes 81A and 81B of the engaging members 66A and 66B are fixedly installed on the base 5 (see FIG. 7 ).
  • a spanning member 82 is fixed to the pair of rotation axes 81A and 81B, and the coupling pin 63a for rotatably fixing the central link 62a of the link mechanism 61 is supported by the spanning member 82 (see FIGS. 2 and 4 ).
  • the engaging members 66A and 66B In a state where an external force is not received by the link retaining mechanism 65, the engaging members 66A and 66B receive a force from the coupling spring 69 and are retained in the state shown in FIG. 3 . In this state, the engaging members 66A and 66B constrain, by their peripheral portions (portions indicated by arrows P2 in FIG. 3 ), an extending movement of the link mechanism 61 to the rectilinear state. When the link mechanism 61 is thus held in the inflected state by the engaging members 66A and 66B, movement of the locking slider 33 in the locking direction A1 is constrained via the slit 33e and the guiding coupling pin 63c.
  • the engaging members 66A and 66B are formed to be able to rotate, against the urging force of the coupling spring 69, in directions (directions indicated by arrows R1 in FIG. 3 ) of making the second engaging portions 68A and 68B approach the link mechanism 61 when edges (portions indicated by P1 in FIG. 3 ) of the first engaging portions 67A and 67B are urged by the movement of the locking pins 14A and 14B, respectively fixed with respect to the sliding doors 11A and 11B, in closing directions (directions indicated by arrows B1 in FIG. 3 ; referred to hereinafter as "closing directions B1").
  • the locking pins 14A and 14B and the first engaging portions 67A and 67B are engaged as shown in FIG. 5
  • the positions of the second engaging portions 68A and 68B are positions enabling engagement with the pins 63d and 63e disposed at the ends of the link mechanism 61. That is, the engaging members 66A and 66B enter a state of not constraining the deformation of link mechanism 61. If at this point, the locking slider 33 moves in the locking direction A1, the link mechanism 61 is made to transition from the inflected state to the rectilinear state by the guiding connecting pin 63c moving along the slit 33e.
  • the pins 63d and 63e, positioned at the ends of the link mechanism 61 then engage with the second engaging potions 68A and 68B of the engaging members 66A and 66B. Rotations of the engaging members 66A and 66B are thereby constrained. Movements of the locking pins 14A and 14B in opening directions (directions indicated by arrows B2 in FIGS. 3 and 5 ; hereinafter referred to as "opening directions B2”) are thus constrained by the first engaging portions 67A and 67B.
  • FIG. 2 shows a manner in which the sliding doors 11A and 11B move in the closing directions B1 and shows a state in which the locking mechanism 60 is unlocked. In this state, the locking pins 14A and 14B are in positions away from the locking mechanism 60 and the locking mechanism 60 is retained in the state shown in FIG. 3 .
  • the link mechanism 61 In this unlocked state, the link mechanism 61 is in the inflected state and the rectilinearly extending movement of the link mechanism 61 is constrained by the engaging members 66A and 66B. The movement of the locking slider 33 in the locking direction A1 is thus constrained via the guiding coupling pin 63c of the link mechanism 61 and the slit 33e.
  • the torque limiting spring 71 urges the pulling member 70, coupled to the carrier 23, so as to make a predetermined elastic force, which suppresses the rotation of the carrier 23 according to the revolution of the planetary gears 24, act on the carrier 23 so as to be balanced with a running resistance during a normal closing operation of the sliding doors 11A and 11B.
  • the sun gear 21 of the planetary gear mechanism 20 is driven by the electric motor, the planetary gears 24 only rotate and do not revolve, and thus all of the driving force of the sun gear 21 is transmitted to the pinion 9 via the internal gear 22 and the sliding doors 11A and 11B are driven to open/close.
  • the engaging members 66A and 66B of the locking mechanism 60 that engage with the locking pins 14A and 14B receive the elastic force of the coupling spring 69, are thus retained in the state shown in FIG. 3 , and do not rotate to the locked position (position shown in FIG. 5 ) until the sliding doors 11A and 11B reach the fully closed position.
  • the locking mechanism 61 can thereby be prevented from operating too early before the sliding doors 11A and 11B reach the fully closed position. Malfunction of the locking mechanism 60 thus does not occur due to collision of the locking pins 14A and 14B with the engaging members 66A and 66B that have entered the locked positions.
  • the engaging members 66A and 66B engage the locking pins 14A and 14B in the first engaging portions 67A and 67B, and the transition to the locked position, in which the second engaging portions 68A and 68B are made to face the pins 63d and 63e positioned at the ends of the link mechanism 61, is completed. Transition of the link mechanism 61 to the rectilinear state is thereby allowed.
  • the locking slider 33 which is coupled via the guiding coupling pin 63c and the slit 33e to the link mechanism 61 that is allowed to transition to the rectilinear state, is enabled to move in the locking direction A1. Consequently, rotation of the carrier 23, coupled to the locking slider 33 via the torque limiting spring 71 and the pulling member 70, is allowed.
  • the sliding doors 11A and 11B become unable to move in the closing directions B1.
  • the rotation of the internal gear 22, coupled to the sliding doors 11A and 11B via the rack and pinion mechanism 10, is thus also prevented.
  • the driving force of the sun gear 21 that continues to rotate now becomes transmitted to the carrier 23 so that the carrier 23 rotates in a counterclockwise direction in FIG. 2 and the locking slider 33 is moved in the locking direction A1 via the torque limiting spring 71 and the pulling member 70.
  • the link mechanism 61 transitions from the inflected state (the state shown in FIG. 3 ) to the rectilinear state (the state shown in FIG. 5 ).
  • the locking mechanism 60 is automatically switched to the locked state after the sliding doors 11A and 11B move into the fully closed position, and the sliding doors 11A and 11B are thereby locked as they are in the closed state. Locking that is coupled to the closing of the sliding doors 11A and 11B can thus be realized by just driving the sun gear 21 of the planetary gear mechanism 20 by a single actuator and the drive arrangement can be made simple.
  • locking can be applied in double, that is, the locking that restricts the rotations of the engaging members 66A and 66B by the link mechanism 61 and the locking that restricts the deformation of the link mechanism 61 from the rectilinear state to the inflected state by the locking slider 33 can be applied.
  • the opening of the sliding doors 11A and 11B is prevented extremely securely by the double locking arrangement. This means that even if a power outage, etc., occurs in the vehicle, inadvertent opening of the sliding doors 11A and 11B due to wind pressure, etc., can be prevented.
  • the guiding coupling pin 63c of the link mechanism moves along the edge of the slit 33e from the first hole portion a to the second hole portion B and the link mechanism 61 thereby transitions from the rectilinear state to the inflected state.
  • the engagements of the second engaging portions 68A and 68B of the engaging members 66A and 66B with the pins 63d and 63e, positioned at the ends of the link mechanism 61, are thereby released.
  • the engaging members 66A and 66B receive a force that makes the first engaging portions 67A and 67B face outward (to sides opposite the link mechanism 61). That is, the engaging members 66A and 66B receive a force that rotates the members in the R2 directions in FIG. 5 .
  • the lock pins 14A and 14B which are in engaged states with the second engaging portions 68A and 68B, are thereby allowed to move in the opening directions B2 and the locking of the sliding doors 11A and 11B is released.
  • the movement of the locking slider 33 in the unlocking direction A2 is constrained by the deformation limit of the locking spring 73.
  • the constraining of the movement of the locking slider 33 in the unlocking direction A2 is not restricted to the constraining by the deformation limit of the locking spring 73 and the constraint may instead be applied by contact of the carrier 23 and the base 5 at a predetermined position.
  • the lengths of the guide grooves 80A and 80B, in which the pins 63d and 63e of the link mechanism 61 is inserted may be set appropriately so that the deformation of the link mechanism 61 is constrained by the constraining of the movement of the pins 63d and 63e by the guide grooves 80A and 80B and the movement of the locking slider 33 is constrained accordingly.
  • An arrangement where the locking slider 33 and an unillustrated lever, disposed at a position accessible from the interior or exterior of the vehicle, are connected via an unillustrated wire or other coupling member, can be provided to enable a person to operate the lever at a time of emergency to move the locking slider in the releasing direction to release the lock and then open the sliding doors 11A and 11B manually.
  • the lever may be fixed directly to the locking slider 33.
  • FIGS. 8 and 9 A case where the running resistance of at least one of either of the sliding door 11A and 11B becomes significantly large during the closing operation of the sliding doors 11A and 11B (during movements of the sliding doors from the fully opened position to the fully closed position) shall now be described using FIGS. 8 and 9 .
  • FIG. 8 is a schematic view of a state of the carrier 23 during a normal closing operation.
  • FIG. 9 is a schematic view of a state of the carrier 23 when the running resistance of a sliding door increases during the closing operation.
  • the elastic force that suppresses the rotation of the carrier 23 is made to act on the carrier 23 via the pulling member 70 so as to be balanced with the running resistance of the sliding doors 11A and 11B. That is, when during the closing operation, a force no less than the normal running resistance acts on the sliding door 11A or 11B, the carrier 23 can rotate so as to enter the state shown in FIG. 9 while elastically deforming the torque limiting spring 71 with the position of the locking slider 33 being kept fixed.
  • a permanent magnet 83 is fixed to an outer peripheral edge of the carrier 23, and a detection switch 84 (collision detection unit, limit switch), mounted on the base 5 side, is arranged to be switched by the movement of the permanent magnet 83 according to the rotation of the carrier 23.
  • the detection switch 84 is in the OFF state in the position of the carrier 23 during operation of the sliding doors 11A and 11B at the normal running resistance.
  • the detection switch 84 is put in the ON state (see FIG. 9 ).
  • the detection switch 84 is switched to the ON state, a signal that stops driving is transmitted to the electric motor and the driving of the electric motor is stopped.
  • the driving of the electric motor can be stopped to relax the impact force applied to the passenger caught by the sliding doors 11A and 11B, etc.
  • the action performed when the detection switch 84 is put in the ON state is not restricted to the stopping of the driving of the electric motor and control may be performed to lower the drive output of the electric motor instead.
  • a locked state detection sensor that detects that the sliding doors are in a locked state is provided and if after the detection signal is transmitted from the detection switch 84, a detection signal of the locked state detection sensor is not transmitted within a predetermined time, it is judged that door catching or collision, etc., by the sliding doors has occurred and the driving of the electric motor is stopped.
  • a deceleration sensor that detects deceleration of the sliding doors may be used in combination.
  • the opening and closing apparatus with lock includes: the rack and pinion mechanism 10, having the pair of racks 7A and 7B, respectively mounted on the pair of slide-apart type sliding doors 11A and 11B that are movable reciprocatingly with respect to the housing (wall surface) of the vehicle, and a pinion 9, engaged with the pair of racks 7A and 7B; the electric motor, functioning as the opening/closing drive source of the sliding doors 11A and 11B; the locking mechanism 60 mounted on the base 5 affixed to the housing and enabling to lock the pair of sliding doors 11A and 11B in the fully closed position by constraining the respective movements of the locking pins 14A and 14B that are respectively fixed to the respective sliding doors of the pair of sliding doors 11A and 11B; the locking slider 33 for switching the locking mechanism 60 between the locked state and the unlocked state; and the planetary gear mechanism 20, having the sun gear 21, into which the driving force of the electric motor is input, the internal gear 22, enabling to output the driving force to the pinion 9, and the carrier
  • the power of the electric motor is allocated via the planetary gear mechanism 20 to drive the pinion 9 of the rack and pinion mechanism 10 on one hand and drive the locking slider 33 on the other. Because the arrangement for power transmission (allocation) from the electric motor is thus housed in a compact space, the structure can be simplified and a compact opening and closing apparatus with lock can be provided.
  • the driving force from the electric motor is allocated not using a cushioning spring as in Patent Document 1 but using the planetary gear mechanism 20, even if the driving force is lost due to electric motor malfunction, etc., in the state where the sliding doors 11A and 11B are locked at the closed position, a force in a direction of releasing the lock is not applied to the locking slider 33, etc., and unintended unlocking is prevented.
  • the opening and closing apparatus with lock has the locking slider 33 that is enabled to switch the locking mechanism 60 between the locked state and the unlocked state by moving according to the drive of the carrier 23.
  • the locking mechanism 60 is arranged so that the movement of the locking slider 33 is prevented when the sliding doors 11A and 11B are in positions other than the fully closed position and the movement of the locking slider 33 is allowed when the sliding doors 11A and 11B are in the fully closed position.
  • the locking operation is performed when the sliding doors 11A and 11B have reached the fully closed position securely. That is, the locking operation is prevented from being performed at a timing that is too early in the driving of the sliding doors 11A and 11B in the closing directions B1, and breakage of the locking mechanism 60 and constraining of the sliding doors 11A and 11B before the reaching of the fully closed position are thereby prevented.
  • the locking mechanism 60 includes the link mechanism 61, which is deformable to the rectilinear state and the inflected state according to the movement of the locking slider 33, and the link retaining mechanism 65, which retains the link mechanism 61 in the inflected state when the sliding doors are in positions other than the fully closed position.
  • the link mechanism 61 deforms to the rectilinear state and thereby constrains the movement of the locking pins 14A and 14B respectively fixed to the sliding doors 11A and 11B.
  • the movements of the sliding doors 11A and 11B can be locked in the fully closed position by putting the link mechanism 61 in the rectilinear state, and because in positions other than the fully closed position, the link mechanism 61 is held in the inflected state by the link retaining mechanism 65, the locking operation is performed after the sliding doors 11A and 11B have reached the fully closed position.
  • the locking mechanism 60 can thus be formed compactly because it is driven using the link mechanism 61 and stable drive can be realized because the locking mechanism 60 is driven mechanically.
  • the opening and closing apparatus with lock has locking pins 14A and 14B that are fixed to the sliding doors 11A and 11B so as to extend in vertical directions.
  • the link retaining mechanism 65 is constituted of the pair of engaging members 66A and 66B, having the first engaging portions 67A and 67B, rotatably installed near the respective ends of the link mechanism 61 and engaging with the locking pins 14A and 14B in the fully closed position, and the second engaging portions 68A and 68B, engaging with the ends of the link mechanism 61 in the rectilinear state in the fully closed position.
  • the engaging members 66A and 66B prevent the movement of the locking slider 33 by preventing the transition of the link mechanism 61 to the rectilinear state when the sliding doors 11A and 11B are in positions other than the fully closed position, and allows the movement of the locking slider 33 by being urged by the locking pins 14A and 14B to rotate to positions enabling engagement of the ends of the link mechanism 61 with the second engaging portions 68A and 68B during the movement of the sliding doors 11A and 11B in the closing directions B1.
  • the engaging members 66A and 66B engage with the locking pins 14A and 14B. Then by the extension of the link mechanism 61 to the rectilinear state, the engaging members 66A and 66B engage with the ends of the link mechanism 61 and become constrained in rotational movement. The locking pins 14A and 14B are thereby constrained in movement in the state of being engaged with the engaging members 66A and 66B.
  • the engaging members 66A and 66B the transition of the link mechanism 61 to the rectilinear state in positions besides the fully closed position can be prevented and the movement of the locking pins 14A and 14B can be constrained in the fully closed position.
  • the number of parts necessary for forming the locking mechanism 60 can thus be made low and a more compact locking mechanism 60 can be arranged.
  • the opening and closing apparatus with lock includes the locking slider 33, enabling to move slidingly in one direction with respect to the locking mechanism 60 and having the slit 33e of a curved shape at the bottom surface, the link mechanism 61 acts within a plane parallel to the bottom surface of the locking slider 33 and has the guiding coupling pin 63c, disposed at one coupling point, inserted in the slit 33e, and the link mechanism 61 is deformed to the rectilinear state and the inflected state by the guiding coupling pin 63c moving along the slit 33e.
  • the link mechanism 61 can be deformed to the rectilinear state and the inflected state by the movement of the locking slider 33 in one direction without interposing another member between the locking slider 33 and the link mechanism 61.
  • the installation space of the locking mechanism 60 can thus be made small.
  • the locking mechanism 60 has the link mechanism 61, which is deformable to the rectilinear state and the inflected state within the horizontal plane, and by the link mechanism 61 deforming to the rectilinear state when the sliding doors 11A and 11B are in the fully closed position, the locking mechanism 60 engages with the locking pins 14A an 14B that are fixed to the sliding doors 11A and 11B and enters the locked state.
  • the sliding doors 11A and 11B when the sliding doors 11A and 11B reach the fully closed position, the sliding doors 11A and 11B can be locked by the locking slider 33 being driven and the link mechanism 61 being deformed to the rectilinear state within the horizontal plane. Because the locking mechanism 60 thus puts the sliding doors 11A and 11B in the locked state using the link mechanism 61 that operates within the horizontal plane, the installation space of the locking mechanism 60 can be made small in the height direction. Thus by using the opening and closing apparatus with lock according to the present embodiment, the opening/closing and locking operations can be performed within a smaller installation space.
  • the link mechanism 61 has the link 62a, rotatably fixed to the base 5, and the movements of the pins 63d and 63e at the ends of the link mechanism 61 are restricted by the rectilinear guide grooves 80A and 80B formed in the base 5.
  • the opening and closing apparatus with lock has the locking pins 14A and 14B that are fixed to the sliding door so as to extend in vertical directions.
  • the locking mechanism 60 includes the engaging members 66A and 66B, rotatably installed within a horizontal plane near the ends of the link mechanism 61 and having the first engaging portions 67A and 67B, engaging with the locking pins 14A and 14B in the fully closed position, and the second engaging portion 68A and 68B, engaging with the pins 63d and 63e at the ends of the link mechanism 61 in the rectilinear state in the fully closed position.
  • the locking mechanism 60 that operates within the horizontal plane can be made readily engageable with the locking pins 14A and 14B. Because in the fully closed position, the movements of the locking pins 14A and 14B can be constrained by constraining the rotations of the engaging members 66A and 66B by the pins 63d and 63e at the ends of the link mechanism 61 in the rectilinear state, the direction in which the link mechanism 61 extends to the rectilinear state can be set to any direction that enables the constraining of the rotation of the engaging members 66A and 66B. As shown in FIG.
  • the forces that the pins 63d and 63e at the ends of the link mechanism 61 receive due to the rotations of the engaging members 66A and 66B are perpendicular to the longitudinal directions of the guide grooves 80A and 80B, in which the pins 63d and 63e can move, and the forces applied from the engaging members 66A and 66B are supported by the edges of the guide grooves 80A and 80B.
  • These forces thus do not act to make the link mechanism 61 transition to the inflected state and the locked state can thus be maintained more securely.
  • loads applied to the links 62b and 62c are made small and malfunction, etc., of the link mechanism 61 can be suppressed.
  • the opening and closing apparatus with lock has the locking slider 33 that is movable within the horizontal plane according to the driving of the carrier 23.
  • the link mechanism 61 can be deformed to the rectilinear state and the inflected state by the movement of the guiding coupling pin 63c, disposed at the coupling point of the link mechanism 61, in accordance with the movement of the locking slider 33.
  • the locking slider 33 is movable within the horizontal plane, the installation space can be made small in the height direction. Also, the locking slider 33 can switch the state of the link mechanism 61 by using the guiding coupling pin 63c that constitutes the link mechanism 61, and a simple arrangement with a low number of parts can thus be realized.
  • the opening and closing apparatus with lock has the locking slider 33 that is enabled to move slidingly in one direction within the horizontal plane according to the drive of the carrier 23 and has the slit 33e of a curved shape at the bottom surface.
  • the guiding coupling pin 63c disposed at one coupling point of the link mechanism 61, is inserted in the slit 33e, and the link mechanism 61 can be deformed to the rectilinear state and the inflected state by the guiding coupling pin 63c, disposed at the coupling point of the link mechanism 61, moving along the slit 33e according to the movement of the locking slider 33.
  • the movement of the link mechanism 61 can be restricted by using the slit 33e at the bottom surface of the locking slider 33 that is enabled to move slidingly within the horizontal plane. Because the slit 33e has a curved shape, an arrangement that guides the guiding coupling pin 63c in a direction that differs from the movement direction of the locking slider 33 can be realized in a simple manner. With the present embodiment, deformation of the link mechanism 61 to the rectilinear state and the inflected state can be realized by the second hole portion B that extends curvingly in a direction that differs from the movement direction of the locking slider 33.
  • the opening and closing apparatus with lock includes the torque limiting spring 71 that makes the predetermined elastic force, which suppresses the rotation of the carrier 23 when the running resistance of the sliding doors 11A and 11B is less than the predetermined running resistance, act on the carrier 23 during the closing operation of the sliding doors 11A and 11B, and the detection switch 84 that is disposed in the base 5 and stops the drive of the electric motor when the deformation amount of the torque limiting spring 71 reaches the predetermined deformation amount during the closing operation of the sliding doors 11A and 11B.
  • the carrier 23 is enabled to output the driving force of the electric motor to the torque limiting spring 71.
  • the opening and closing apparatus with lock has the locking slider 33 that can switch the locking mechanism between the locked state and the unlocked state by moving.
  • the torque limiting spring 71 is disposed between the carrier 23 and the locking slider 33.
  • the output of the carrier 23 can be used to drive the locking slider 33 to switch the locking mechanism 60 and make a force act on the torque limiting spring 71 at the same time.
  • the torque limiting spring 71 is installed at another position, the driving force from the carrier 23 in the switching of the locking mechanism 60 is allocated in parallel among the torque limiting spring 71, which is installed at the other position, and the locking slider 33.
  • the forces that respectively act on the respective components thus become small.
  • the force applied to the torque limiting spring 71 is also made to act on the locking slider 33 in a serial manner, thus enabling the collision detection and the locking operation to be performed efficiently.
  • the detection switch 84 is constituted of a limit switch that stops the drive of the electric motor upon detecting that the rotation angle of the carrier 23 has become no less than the predetermined rotation angle.
  • the limit switch detects the rotation angle of the carrier 23, which rotates in correspondence to the deformation of the torque limiting spring 71, to stop the drive of the electric motor.
  • the collision detection unit can thus be arranged with a simple arrangement.
  • the torque limiting spring 71 makes the predetermined elastic force, which suppresses the rotation of the carrier 23, act on the carrier 23 so as to be balanced with the running resistance when the sliding doors 11A and 11B are performing the normal closing operation.
  • Performing the normal closing operation refers to the state where a force that obstructs the operation of the sliding doors 11A and 11B is not acting from the exterior, and the elastic force that is balanced with the running resistance during this normal closing operation is made to act on the carrier 23 by the torque limiting spring 71.
  • the elastic force that is made to act by the torque limiting spring 71 is thus made smaller.
  • the torque limiting spring 71 can thus be installed in a readily deformable state. Because the torque limiting spring 71 is thereby made more readily deformable by an increase in the running resistance of the sliding doors 11A and 11B, detection of higher sensitivity is enabled.
  • the arrangement uses the planetary gear mechanism and thus when the sliding door A or B collides, because the force corresponding to the elastic force of the torque limiting spring 71 acts on the object of collision, by making the elastic force that is made to act by the torque limiting spring 71 small, the impact applied to the object of collision from the sliding door A or B can be relaxed significantly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Lock And Its Accessories (AREA)
EP07831180A 2006-11-10 2007-10-30 Opening and closing apparatus with lock Active EP2079894B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07831180T PL2079894T3 (pl) 2006-11-10 2007-10-30 Urządzenia do otwierania i zamykania z ryglem

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2006304913A JP4994792B2 (ja) 2006-11-10 2006-11-10 ドア開閉装置
JP2006304912A JP4938416B2 (ja) 2006-11-10 2006-11-10 ロック付開閉装置
JP2006304914A JP4975413B2 (ja) 2006-11-10 2006-11-10 ロック付開閉装置
PCT/JP2007/071447 WO2008056620A1 (en) 2006-11-10 2007-10-30 Opening and closing apparatus with lock

Publications (3)

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EP2079894A1 EP2079894A1 (en) 2009-07-22
EP2079894A4 EP2079894A4 (en) 2011-01-19
EP2079894B1 true EP2079894B1 (en) 2012-08-15

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EP07831180A Active EP2079894B1 (en) 2006-11-10 2007-10-30 Opening and closing apparatus with lock

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EP (1) EP2079894B1 (es)
KR (1) KR101029179B1 (es)
CN (1) CN102864990B (es)
DK (1) DK2079894T3 (es)
ES (1) ES2393008T3 (es)
HK (1) HK1177777A1 (es)
PL (1) PL2079894T3 (es)
TW (1) TWI357459B (es)
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20130043A1 (it) * 2013-02-26 2014-08-27 Topp S P A A Socio Unico Serratura elettrica per ante scorrevoli
US9316030B2 (en) 2011-03-10 2016-04-19 Nabtesco Corporation Door opening and closing apparatus
EP4001564A1 (en) * 2020-11-13 2022-05-25 Nabtesco Corporation Manual locking device and railway vehicle door device
DE102022000716B3 (de) 2022-02-28 2023-07-27 Knorr-Bremse Gesellschaft Mit Beschränkter Haftung Türverriegelungsvorrichtung, Türsystem und Personenbeförderungsfahrzeug

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CN101942946B (zh) * 2010-08-16 2013-05-29 南京康尼机电股份有限公司 一种用于轨道车辆门***螺旋传动的全程锁闭装置
TWI447290B (zh) * 2011-03-09 2014-08-01 Nabtesco Corp Attachment of the opening and closing device
KR101585812B1 (ko) * 2011-09-09 2016-01-14 나부테스코 가부시키가이샤 로크 부착 개폐 장치
EP2594451A3 (de) * 2011-11-17 2015-10-28 Gebr. Bode GmbH & Co. KG Zugangseinrichtung für ein Personenbeförderungsfahrzeug
JP6180806B2 (ja) * 2013-06-13 2017-08-16 ナブテスコ株式会社 ドア開閉装置
US9874050B2 (en) * 2013-09-23 2018-01-23 Knorr-Bremse Gesellschaft Mit Beschrankter Haftung Sliding door module/pivoting sliding door module having floating mounting of a rack of a rack-and-pinion drive
AT514883A3 (de) * 2013-09-23 2015-06-15 Knorr Bremse Ges Mit Beschränkter Haftung Materialpaarung für einen Zahnstangenantrieb eines Schiebetürmoduls/Schwenkschiebetürmoduls
AT514882A3 (de) * 2013-09-23 2015-06-15 Knorr Bremse Ges Mit Beschränkter Haftung Schiebetürmodul/Schwenkschiebetürmodul mit fliegender Lagerung einer Zahnstange eines Zahnstangenantriebs
CN104699175B (zh) * 2013-12-06 2018-06-22 神讯电脑(昆山)有限公司 旋转式扣门
JP6346835B2 (ja) * 2014-09-22 2018-06-20 ナブテスコ株式会社 プラグドア開閉装置およびプラグドア装置
EP3795787B1 (de) * 2019-09-20 2024-03-20 Knorr-Bremse Gesellschaft mit beschränkter Haftung Zweiflügelige fahrzeugtürvorrichtung mit vorverriegelung eines voreilenden türflügels

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US9316030B2 (en) 2011-03-10 2016-04-19 Nabtesco Corporation Door opening and closing apparatus
US9403422B2 (en) 2011-03-10 2016-08-02 Nabtesco Corporation Plug door device
ITPD20130043A1 (it) * 2013-02-26 2014-08-27 Topp S P A A Socio Unico Serratura elettrica per ante scorrevoli
EP2770140A1 (en) * 2013-02-26 2014-08-27 Topp S.p.A. A Socio Unico Electric lock for sliding doors or shutters
EP4001564A1 (en) * 2020-11-13 2022-05-25 Nabtesco Corporation Manual locking device and railway vehicle door device
DE102022000716B3 (de) 2022-02-28 2023-07-27 Knorr-Bremse Gesellschaft Mit Beschränkter Haftung Türverriegelungsvorrichtung, Türsystem und Personenbeförderungsfahrzeug

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KR20090069190A (ko) 2009-06-29
CN102864990B (zh) 2015-09-16
TW200833931A (en) 2008-08-16
CN102864990A (zh) 2013-01-09
WO2008056620A1 (en) 2008-05-15
DK2079894T3 (da) 2012-12-03
KR101029179B1 (ko) 2011-04-12
ES2393008T3 (es) 2012-12-17
TWI357459B (en) 2012-02-01
EP2079894A4 (en) 2011-01-19
HK1177777A1 (en) 2013-08-30
EP2079894A1 (en) 2009-07-22
PL2079894T3 (pl) 2013-01-31

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