EP2476848B1 - Appareil de suspension et appareil de porte équipé d'un tel appareil de suspension - Google Patents

Appareil de suspension et appareil de porte équipé d'un tel appareil de suspension Download PDF

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Publication number
EP2476848B1
EP2476848B1 EP10815263.8A EP10815263A EP2476848B1 EP 2476848 B1 EP2476848 B1 EP 2476848B1 EP 10815263 A EP10815263 A EP 10815263A EP 2476848 B1 EP2476848 B1 EP 2476848B1
Authority
EP
European Patent Office
Prior art keywords
door
rail
connection portion
hole portion
drive connection
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.)
Not-in-force
Application number
EP10815263.8A
Other languages
German (de)
English (en)
Other versions
EP2476848A4 (fr
EP2476848A1 (fr
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
Application filed by Nabtesco Corp filed Critical Nabtesco Corp
Publication of EP2476848A1 publication Critical patent/EP2476848A1/fr
Publication of EP2476848A4 publication Critical patent/EP2476848A4/fr
Application granted granted Critical
Publication of EP2476848B1 publication Critical patent/EP2476848B1/fr
Not-in-force 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
    • B61D19/02—Door arrangements specially adapted for rail vehicles for carriages
    • 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
    • E05B83/36—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
    • 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
    • E05F15/643—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • 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
    • E05F17/00—Special devices for shifting a plurality of wings operated simultaneously
    • E05F17/004—Special devices for shifting a plurality of wings operated simultaneously for wings which abut when closed
    • 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
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/64—Carriers
    • 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
    • E05Y2201/644—Flexible elongated pulling elements
    • E05Y2201/654—Cables
    • 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/205—Combinations of elements forming a unit
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/51—Application of doors, windows, wings or fittings thereof for vehicles for railway cars or mass transit vehicles

Definitions

  • the present invention relates to a door suspension apparatus that holds a door provided in a structure and driven to be opened and closed by an open-close drive mechanism, in a state in which the door is suspended to the structure so as to be slidably moved, and that is connected to the open-close drive mechanism, and a door apparatus equipped with the door suspension apparatus.
  • Patent Documents 1 and 2 disclose door suspension apparatuses in each of which, in a railroad vehicle as a structure, a door suspended by the door suspension apparatus is driven to be opened and closed by an open-close drive mechanism connected to the door suspension apparatus.
  • a locking device that locks the door on the structure side in a fully closed position through locking between a locking portion and a locked portion.
  • the locking portion is configured as a pivot member provided pivotably on the structure side.
  • the locking portion is configured to be engaged with a locked portion provided as an engagement pin attached to the door via a bracket on the door leading end side of the door (the side on which the end in the closing direction of the door is located).
  • EP 0841455 A1 discloses a door panel lock actuated by a rotary helical door drive wherein the door panel of a mass transit vehicle is held in a closed position through direct contact with the panel.
  • the operation of adjusting the positions of the locking portion and the locked portion of the locking device is also necessary in addition to the operation of adjusting the position of the door in the opening and closing direction.
  • the space in which the door suspension apparatus and the locking device are housed above the opening is usually very small, and therefore it is considerably difficult to further perform the positional adjustment operation between the locking portion and the locked portion of the locking device in a state in which the positional adjustment of the door has been completed.
  • an object of the present invention is to provide a door suspension apparatus that is capable of, when a door that can be locked to a fully closed position by a locking device is installed in a structure, performing the positional adjustment operation of the door in the opening and closing direction without performing the positional adjustment operation between a locking portion and a locked portion of the locking device, and another object thereof is to provide a door apparatus equipped with the door suspension apparatus.
  • a first aspect of a door suspension apparatus of the present invention for achieving the above-described objects relates to a door suspension apparatus that supports a door provided in a structure and driven to be opened and closed by an open-close drive mechanism, in a state in which the door is suspended to the structure so as to be slidably moved, and that is connected to the open-close drive mechanism.
  • the door suspension apparatus of the first aspect includes: a drive connection portion that is provided with one of a locking portion and a locked portion of a locking device for locking the door to the structure in a fully closed position through locking between the locking portion and the locked portion, and that is connected to the open-close drive mechanism; a door roller portion that includes a door roller traveling on a rail fixed in the structure, that is connected to the door, and that supports the door in a state in which the door is suspended to the rail so as to be slidably moved; and a variable connection portion that connects the drive connection portion to the door roller portion such that a relative position between the drive connection portion and the door roller portion in a direction along a lengthwise direction of the rail can be changed.
  • the worker performing the installation operation first adjusts the position of the door in the up-down direction. Then, the worker causes one of the locking portion and the locked portion provided in the drive connection portion to be locked to the other of the locking portion and the locked portion provided on the structure side, thus bringing about a state that is the same as a state in which the locking device has been operated. In this state, the worker causes the door roller portion supporting the door in a suspended manner to be slidably moved relative to the rail together with the door, while adjusting, with the variable connection portion, the relative position between the drive connection portion and the door roller portion in a direction along the lengthwise direction of the rail.
  • the worker adjusts the position of the door in the opening and closing direction such that the opening of the door is fully closed in the fully closed position of the open-close drive mechanism.
  • the position of the drive connection portion and the door roller portion to each other is fixed, completing the positional adjustment operation of the door in the opening and closing direction.
  • the locking device is in a state in which the locking portion and the locked portion remain locked throughout the positional adjustment operation of the door in the opening and closing direction.
  • a door suspension apparatus that enables, when the door that can be locked in the fully closed position by the locking device is installed in a structure, the positional adjustment operation of the door in the opening and closing direction to be performed without performing the positional adjustment operation between the locking portion and the locked portion of the locking device.
  • the door roller portion includes a first hole portion that is formed therethrough so as to extend along the lengthwise direction of the rail
  • the drive connection portion includes a second hole portion that extends along the lengthwise direction of the rail and that is formed therethrough so as to face the first hole portion
  • the variable connection portion includes a fastening mechanism that includes a member passing through the first hole portion and the second hole portion and that is capable of fixing the door roller portion and the drive connection portion to each other such that a relative position therebetween can be changed.
  • variable connection portion includes the fastening mechanism that includes the member passing through the first hole portion and the second hole portion provided in the door roller portion and the drive connection portion, respectively, and extending along the lengthwise direction of the rail, and that is capable of fixing the door roller portion and the drive connection portion to each other such that their relative position can be changed. Accordingly, when the positional adjustment operation of the door in the opening and closing direction is performed, it is possible to directly generate fastening force along the lengthwise direction of the rail, which is the opening and closing direction in which the door is slidably moved, thus fixing the door roller portion and the drive connection portion to each other.
  • fastening force is generated in a direction perpendicular to the lengthwise direction of the rail as described above, and the position of the door roller portion and the drive connection portion to each other is retained by frictional force (contact pressure) generated between predetermined two members. For this reason, it is necessary to perform fixation after managing the fastening force such that the frictional force (contact pressure) has a predetermined magnitude or greater.
  • the door roller portion and the drive connection portion can be fixed by directly generating fastening force along the lengthwise direction of the rail as described above, and therefore it is not necessary to manage the fastening force, making it possible to further reduce the burden of the operation.
  • the fastening mechanism includes a bolt that is provided as the member passing through the first hole portion and the second hole portion and whose bolt head is engaged with one of the door roller portion and the drive connection portion, and a first nut that is threadedly engaged with the bolt and is engaged with the other of the door roller portion and the drive connection portion, and the first hole portion is disposed on a door trailing end side, which is the side on which the end of the door in an opening direction is located, with respect to the second hole portion.
  • the fastening mechanism includes the bolt that are engaged with the drive connection portion and the door roller portion and that passes through the first and second hole portions, and the first nut that is threadedly engaged with the bolt. Also, the first hole portion on the door roller portion side that supports the door is disposed on the door trailing end side with respect to the second hole portion on the drive connection portion side, and therefore the door is moved toward the door leading end side when the variable connection portion is adjusted by operating the bolt and the first nut in the fastening direction.
  • the direction in which one of the bolt and the first nut engaged on the door roller portion side is fastened and caused to approach toward the other of the bolt and the first nut engaged on the drive connection portion side can be made coincident with the direction in which the door is moved toward the door leading end side.
  • the fastening mechanism further includes a second nut that is threadedly engaged with the bolt, the bolt is inserted into the second hole portion from a door leading end side, which is the side on which the end of the door in the closing direction is located, and the bolt head is engaged with the drive connection portion, the second nut is disposed on the side opposite to the bolt head via the second hole portion and is engaged with the drive connection portion from the door trailing end side, and the first nut is engaged with the door roller portion from the door trailing end side.
  • fastening the second nut threadedly engaged with the bolt allows the bolt to be easily fixed to the drive connection portion by the fastening force acting between the bolt head and the second nut on the door leading end side.
  • the structure that eventually fixes the bolt to the drive connection portion can be realized with a simple configuration in which only the second nut is provided. Accordingly, in the fastening mechanism with good operability in which the direction in which the first nut is fastened to the bolt and the movement direction of the door are coincident, it is also possible to realize a structure that is capable of easily fixing the bolt to the drive connection portion with a simple configuration.
  • the door roller portion further includes a guide portion for guiding movement of the drive connection portion along the lengthwise direction of the rail, and a direction in which the first hole portion and the second hole portion extend in the lengthwise direction of the rail and a direction in which the guide portion is disposed along the lengthwise direction of the rail are displaced parallel to each other.
  • the drive connection portion is supported to the door roller portion so as to be movable along the lengthwise direction of the rail via the bolt of the fastening mechanism of the variable connection portion, and is supported so as to be movable along the lengthwise direction of the rail also in the guide portion disposed in a position displaced parallel to the bolt. Accordingly, it is possible to prevent the drive connection portion from being pivoted about the member of the fastening mechanism when the worker performs the operation of adjusting the position of the door in the opening and closing direction, and therefore the worker does not need to retain the drive connection portion so as not to pivot about the member of the fastening mechanism during the operation. This can further reduce the burden of the operation.
  • the guide portion is formed as a shaft-like member extending along the lengthwise direction of the rail, and is slidably inserted into a guide hole portion that is formed through the drive connection portion, and the door roller is disposed on either side in a direction along the lengthwise direction of the rail with respect to the guide portion.
  • the guide portion is formed as a shaft-like member extending along the lengthwise direction of the rail, and therefore the guide portion can be disposed along the rail in a compact manner, making it possible to reduce the size of the door roller portion.
  • the guide portion is disposed between the door rollers in a direction along the lengthwise direction of the rail. Therefore, in the door roller portion, the guide portion can be linearly disposed between the structures that support the plurality of door rollers aligned along the lengthwise direction of the rail. Accordingly, it is possible to achieve space saving and weight reduction, compared to a configuration in which the guide portion is provided in a position displaced parallel to the structures that support the plurality of door rollers to achieve integration.
  • a direction in which the first hole portion and the second hole portion extend along the lengthwise direction of the rail and a direction in which the guide portion and the door roller are disposed along the lengthwise direction of the rail are arranged side by side in the horizontal direction and displaced parallel to each other.
  • the direction in which the first hole portion and the second hole portion extend along the lengthwise direction of the rail and the direction in which the guide portion and the door rollers are disposed along the lengthwise direction of the rail are arranged side by side in the horizontal direction and displaced parallel to each other. Accordingly, the door rollers and the guide portion will not be disposed on the opposite sides in a direction along the lengthwise direction of the rail with respect to the bolt and the first nut of the fastening mechanism. This can ensure a sufficient space for the worker to operate the fastening mechanism around the fastening mechanism, and therefore the worker can easily operate the fastening mechanism without being obstructed by the door rollers and the guide portion. Accordingly, it is possible to improve the operability during the operation of the fastening mechanism, thus further reducing the burden of the operation.
  • the door roller portion in the door suspension apparatus of any of the first to seventh aspects, includes a pivot shaft that is disposed extending along the lengthwise direction of the rail, and a pivot member that is provided pivotably about the pivot shaft and on which the door can be suspended.
  • the door in the door roller portion, the door is suspended directly to the pivot member or indirectly via the hanger member, and is supported pivotably about the pivot shaft. Accordingly, it is possible to achieve a structure in which, when an inclination occurs in the door installed in the structure, the influence of the inclination of the door tend not to be transferred to the door rollers. This can reduce the harmful effect on the door rollers by an inclination of the door, including, for example, uneven wear of the door rollers resulting from unbalanced load from the door side acting on the door rollers, unusual sound during travel of the door rollers, and a phenomenon in which the door rollers travel in an unstable manner (bouncing of the door rollers).
  • the present invention when the present invention is applied to a door with a structure having a curved portion, it is possible to maintain the state of contact between the door rollers and the rail in an optimum state even if the above-described gap serving as a play is not provided, thus preventing unbalanced load from acting on the door rollers from the door side, and unusual sound from being generated during travel of the door rollers.
  • the door roller portion further includes a rotational shaft for rotatably supporting the door roller, a first housing member in which a through hole passing through the pivot shaft is formed, a second housing member to which the rotational shaft is attached and that is disposed facing the first housing member, the pivot shaft is provided with a notched portion that is recessed so as to be notched in a groove shape along the circumferential direction thereof, at least one of the first housing member and the second housing member is provided with a notch engaging portion that is engaged with the notched portion, and the first housing member and the second housing member are fixed to each other with a single externally threaded member that is threadedly engaged with an internally threaded hole formed in the rotational shaft.
  • the housing structure that supports the door roller in the door roller portion is formed by combining the second housing member with the first housing member to which the rotational shaft of the door roller is attached. Also, the first housing member and the second housing member are fixed integrally by causing a single externally threaded member to be threadedly engaged with the internally threaded hole of the rotational shaft of the door roller in a state in which the pivot shaft serving as the pivot center of the pivot member is engaged, at its notched portion, with the notch engaging portion provided in at least one of the first and second housing members. Therefore, at the time of performing maintenance after installation, the housing structure of the door roller portion can be easily disassembled by removing a single externally threaded member from the internally threaded hole.
  • the housing structure of the door roller portion can be easily disassembled by simply removing a single externally threaded member, making it possible to reduce the burden of the maintenance operation.
  • a door leading end-side first hole portion that is disposed on a door leading end side, which is the side on which the end of the door in the closing direction is located, with respect to the second hole portion is provided as the first hole portion
  • the fastening mechanism includes a member passing through the door leading end-side first hole portion and the second hole portion, and is capable of fixing the door roller portion and the drive connection portion such that a relative position therebetween can be changed
  • the variable connection portion further includes a push-back mechanism that biases the door roller portion to the drive connection portion in a closing direction of the door, and the push-back mechanism maintains a relative position of the door roller portion with respect to the drive connection portion until a force of a predetermined magnitude or greater acts on the door roller portion in an opening direction of the door, and permits a relative movement of the door roller portion with respect to the drive connection portion in the opening direction of the door within a predetermined distance range when a force
  • the position of the door leading end-side first hole portion, which is disposed on the door leading end side than the second hole portion, with respect to the second hole portion is changed by the fastening mechanism, and thereby the relative position of the drive connection portion with respect to the door roller portion is adjusted.
  • the door roller portion is maintained in the same relative position by being constantly biased to the drive connection portion in the closing direction (to the door leading end side) by the push-back mechanism, and is maintained in the same relative position also when the locking device is operating with the door in the fully closed position.
  • the push-back mechanism includes a coil spring that is disposed between the door leading end-side first hole portion and the second hole portion and through which the member passing through the door leading end-side first hole portion and the second hole portion passes, and biases the door roller portion to the drive connection portion in the closing direction of the door with a biasing force of the coil spring.
  • the push-back mechanism is provided as the coil spring disposed between the door leading end-side first hole portion and the second hole portion, and the member passing through the door leading end-side first hole portion and the second hole portion is disposed so as to pass through the coil spring. Accordingly, it is possible to dispose the push-back mechanism around the fastening mechanism in a compact manner, thus preventing an increase in the size of the variable connection portion even if the push-back mechanism is provided.
  • a door apparatus including any of the above-described door suspension apparatuses. That is, according to a eleventh aspect of a door apparatus of the present invention, there is provided a door apparatus including: the door suspension apparatus of any of the first to eleventh aspects; a door that is provided in a structure and is supported by the door suspension apparatus in a state of being suspended to the structure so as to be slidably moved; an open-close drive mechanism that is connected to the door suspension apparatus and that drives the door to be opened and closed.
  • a door suspension apparatus that is capable of, when a door that can be locked to a fully closed position by a locking device is installed in a structure, performing the positional adjustment operation of the door in the opening and closing direction without performing the positional adjustment operation between a locking portion and a locked portion of the locking device, and it is also possible to provide a door apparatus equipped with the door suspension apparatus.
  • the present invention is applicable as a door suspension apparatus that holds a door provided in a structure and driven to be opened and closed by an open-close drive mechanism, in a state in which the door is suspended to the structure so as to be slidably moved, and that is connected to the open-close drive mechanism, and as a door apparatus including the door suspension apparatus.
  • this embodiment will be described, taking, as an example, a door suspension apparatus and a door apparatus that are used in a railroad vehicle, the present invention is not limited to this example and is widely applicable as a door suspension apparatus and a door apparatus that can be provided in a variety of structures.
  • FIG. 1 is a front view showing a door apparatus 2 according to one embodiment of the present invention.
  • the door apparatus 2 shown in FIG. 1 can be used, for example, for a side wall of a railroad vehicle as a structure.
  • FIG. 1 shows a front view of the door apparatus 2, as viewed from the inside of the railroad vehicle.
  • illustration of the side wall of the railroad vehicle is omitted in FIG. 1 , and the door apparatus 2 is schematically illustrated.
  • the door apparatus 2 includes, for example, door suspension apparatuses 1 according to one embodiment of the present invention, doors 11 (partly shown in FIG. 1 ), an open-close drive mechanism 12, and locking devices 13.
  • a door 11 is formed as a sliding door provided at a side wall of a railroad vehicle (hereinafter, referred to as "structure"), and constitutes a side door provided in the railroad vehicle for loading and unloading of passengers.
  • structure a railroad vehicle
  • Two doors 11 are provided, and each of the doors 11 is supported by the door suspension apparatus 1 in a state in which it is suspended to the structure so as to be slidably moved.
  • a rail 19 including an upper rail 19a and a lower rail 19b that linearly extend parallel to each other in the horizontal direction is fixed to the structure.
  • the two doors 11 are supported by the respective door suspension apparatuses 1 at their upper ends, and are configured to be closed by approaching each other along the rail 19 and coming into contact and to be opened by moving away from each other.
  • the open-close drive mechanism 12 is installed in the structure, and is provided as a mechanism that is connected to the door suspension apparatuses 1 and that drives the doors 11 to be opened and closed.
  • the open-close drive mechanism 12 shown in FIG. 1 includes, for example, a drive motor (not shown), a drive pulley 14, a driven pulley 15, and a belt 16.
  • the belt 16 is configured as an endless belt that is wound around the drive pulley 14 and the driven pulley 15 in a freely rotatable manner. Rotation of the drive pulley 14 connected to the drive motor causes the belt 16 wound around the drive pulley 14 to be rotated, thus causing the driven pulley 15 to rotate together with the belt 16.
  • the drive motor is controlled to be rotated by a predetermined amount in forward and reverse directions, in accordance with a command from a controller, which is not shown. Accordingly, the two doors 11 that are supported in a state in which they are suspended via the door suspension apparatuses 1 connected to the belt 16 of the open-close drive mechanism 12 are driven in the opening direction and the closing direction.
  • FIG. 1 shows the state of a fully closed position in which the two doors 11 are closed
  • FIG. 2 shows the state of a fully opened position in which the two doors 11 are opened.
  • the door suspension apparatuses 1 are moved in directions away from each other, and the state of the two doors 11 is shifted to the state of the fully opened position shown in FIG. 2 .
  • the open-close drive mechanism 12 such that the belt 16 is rotated in the direction indicated by the arrow B shown in FIG. 2 , the door suspension apparatuses 1 are moved in directions approaching each other, and the state of the two doors 11 is shifted to the state of the fully closed position shown in FIG. 1 .
  • FIG. 3 is a partial enlarged view showing, in enlargement, the locking devices 13 shown in FIG. 1 and the vicinity thereof.
  • each of the locking devices 13 includes, for example, a lock member 17 provided on the structure side, and a lock pin 18 provided on the door suspension apparatus 1 side.
  • Each of the locking devices 13 is configured to lock the door 11 to the lock structure in the fully closed position shown in FIG. 1 through locking between the lock member 17 provided as a locking portion and the lock pin 18 provided as a locked portion. This prevents the door 11 from being accidentally opened in the fully closed position.
  • the doors 11 are brought into a state in which they can be opened with operation of the open-close drive mechanism 12 (see FIG. 2 ).
  • FIGS. 1 to 3 show, as an example, the configuration in which the locking devices 13 are respectively provided for the two doors 11, this need not be the case. That is, it is possible to adopt a configuration in which the locking device 13 is provided for only one of two doors 11, and the two doors 11 are locked in the fully closed position by the single locking device 13.
  • the lock pin 18 is configured as a columnar pin member provided protruding toward the inside of the door 11 (toward the inside of the structure) in the door suspension apparatus 1, which will be described later. Accordingly, the lock pin 18 is moved with the movement of the door suspension apparatus 1 by operation of the open-close drive mechanism 12.
  • the lock member 17 is provided as a member pivotably attached on the structure side, and has an opening portion that can be locked to the lock pin 18 so as to be fitted from the side to the lock pin 18.
  • the lock member 17 comes into contact with the lock pin 18 and is pivotably moved.
  • the lock member 17 is fitted from the side to the lock pin 18, thus locking the lock pin 18.
  • a lock retention mechanism (not shown) that includes an electrical driving source such as a solenoid and is capable of holding the pivot position of the lock member 17 is operated in accordance with a command from the controller, and thereby the locking state between the lock member 17 and the lock pin 18 is maintained.
  • the configuration of the locking device is not limited to the configuration of the locking device 13 described above as an example, and various configurations may be adopted. That is, it is possible to adopt any configuration in which the door 11 is locked on the structure side in the fully closed position through locking between the locking portion and the locked portion, with one of the locking portion and the locked portion being provided in the door suspension apparatus 1 and the other of the locking portion and the locked portion being provided on the structure side (or the open-close drive mechanism 12 side). For example, it is possible to use locking devices having the configurations disclosed in JP 2008-121242A , JP 2008-121243A , and JP 2008-121244A .
  • FIG. 4 is a front view showing a door suspension apparatus 1
  • FIG. 5 is a plan view of the door suspension apparatus 1.
  • the door suspension apparatus 1 is provided for each of the doors 11, and the door suspension apparatuses 1 hold the respective doors 11 in a state in which the doors are suspended to the structure so as to be slidably moved, and are each connected to the belt 16 of the open-close drive mechanism 12.
  • the door suspension apparatus 1 includes, for example, a drive connection portion 21, a door roller portion 22, and a variable connection portion 23.
  • the door suspension apparatus 1 disposed on the drive pulley 14 side is shown in FIGS. 4 and 5 .
  • the door suspension apparatus 1 disposed on the driven pulley 15 side is configured in the same manner, except that its devices are arranged line-symmetric about the intermediate position between the two doors 11 with respect to the devices of the door suspension apparatus 1 disposed on the drive pulley 14 side, and therefore, only the door suspension apparatus 1 disposed on the drive pulley 14 is described in the following.
  • the drive connection portion 21 is configured by fixing a door-side connecting member 21a and a door roller-side connecting member 21b to each other with a plurality of fixing bolts 24.
  • the door-side connecting member 21a is provided with the lock pin 18 constituting the locked portion described above, a main body portion 25, a connecting plate portion 26, and so forth.
  • the main body portion 25 is formed in the shape of a flat plate, and its end is fixed to the door roller-side connecting member 21b with the fixing bolts 24.
  • the main body portion 25 is formed such that it protrudes from the door roller-side connecting member 21b to which the end is fixed, is bent, and then extends parallel to the lengthwise direction of the door roller portion 22, which will be described later, and is disposed extending along the horizontal direction.
  • the lock pin 18 is fixed to the end of the main body portion 25 that is opposite from the end connected to the door roller-side connecting member 21b.
  • the connecting plate portion 26 is formed as a flat plate-shaped portion extending in the up-down direction, which is approximately perpendicular to the main body portion 25, and is fixed and connected, on its upper end side, to the belt 16 of the open-close drive mechanism 12.
  • FIG. 6 is a partial enlarged view showing, in enlargement, the vicinity of the door roller-side connecting member 21b shown in FIG. 5 .
  • the door roller-side connecting member 21b includes a first block portion 27 and a second block portion 28 that are each formed in the shape of a rectangular solid extending from the end to which the door-side connecting member 21a is fixed with the fixing bolts 24, parallel to the lengthwise direction of the door roller portion 22.
  • the first and second block portions (27, 28) are integrally formed.
  • the first block portion 27 is provided with a guide hole portion 27a of this embodiment that is formed therethrough so as to extend along the lengthwise direction of the rail 19, which is the direction parallel to the direction in which the lengthwise direction of the door roller portion 22 is arranged.
  • the second block portion 28 is provided with a second hole portion 28a of this embodiment that is formed therethrough so as to extend along the lengthwise direction of the rail 19.
  • the door roller portion 22 shown in FIGS 4 to 6 is provided as a mechanism that includes the door rollers (36a, 36b, 36c) traveling on the rail 19 fixed in the structure, that is connected to the doors 11, and that supports the doors 11 in a state in which the door 11 is suspended to the rail 19 so as to be slidably moved.
  • the door roller portion 22 includes a pair of door roller units 29, a guide portion 30, and so forth.
  • the pair of door roller units 29 includes a door roller unit 29a and a door roller unit 29b, and the door roller units (29a, 29b) are linearly connected to each other via the guide portion 30, and are disposed along the lengthwise direction of the rail 19.
  • the door roller unit 29a is disposed on the door trailing end side (the side on which the end of the door 11 in the opening direction is located) with respect to the guide portion 30, ant the door roller unit 29b is disposed on the door leading end side (the end on which the end of the door 11 in the closing direction is located) with respect to the guide portion 30.
  • FIG. 7 is a plan view showing the door roller unit 29a
  • FIG. 8 is an exploded view of the door roller unit 29a.
  • the door roller unit 29b is configured in the same manner except that its devices are arranged line-symmetric about the intermediate position of the guide portion 30 and that the variable connection portion 23, which will be described later, is not connected. Therefore, in the following, the description of the door roller unit 29b is omitted, and only the door roller unit 29a will be described.
  • the door roller unit 29a include, a first housing member 31, a second housing member 32, a third housing member 33, a pivot shaft 34, a pivot member 35, a plurality of door rollers (36a, 36b, 36c), rotational shafts (37a, 37b, 37c), externally threaded members (38a, 38b, 38c), and so forth.
  • FIG. 9 is an enlarged view showing, in enlargement, the door roller unit 29a and the vicinity thereof together with the rail 19 in a state in which the door suspension apparatus 1 shown in FIG. 5 is installed in a structure, as viewed from the door trailing end side.
  • the plurality of door rollers (36a, 36b, 36c) are aligned in series in the door roller unit 29a along the lengthwise direction of the door roller unit 29a (that is, along the lengthwise direction of the rail 19), and are provided so as to travel on the rail 19.
  • the door roller 36a which is disposed on the door leading end side in the door roller unit 29a, and the door roller 36b, which is disposed in the middle, are disposed so as to come into contact with the lower rail 19b from above, and are provided as door rollers for ensuring the traveling function.
  • the door roller 36c which is disposed on the door trailing end side, is disposed so as to come into contact with the upper rail 19b from below, and is provided as a door roller for ensuring the anti-bouncing function for suppressing vibrations in the door roller portion 22 during travel.
  • the placement of the door rollers (36a, 36b, 36c) allows the door roller portion 22 to travel on the rail 19 in a stable manner.
  • the surfaces of the door rollers (36a, 36b, 36c) and the upper and lower rails (19a, 19b) that come into contact with each other are formed to have a circular-arc cross section.
  • the first to third housings (31, 32, 33) are configured to form an integrated housing structure that supports the door rollers (36a, 36b, 36c) and the pivot member 35, when combined into one unit.
  • the second housing member 32 and the third housing member 33 are disposed facing the first housing member 31 (see FIG. 7 ).
  • the rotational shaft 37a that rotatably supports the door roller 36a is attached to the second housing member 32
  • the rotational shaft 37b and the rotational shaft 37c that rotatably support the door roller 36b and the door roller 36c, respectively, are attached to the third housing member 33.
  • a plurality of (in this embodiment, three) through holes 31a, through which the pivot shaft 34, which will be described later, passes through are formed in the first housing member 31 so as to be aligned in series in positions displaced from the second and third housing members (32, 33) on the side face on which the second and third housing members (32, 33) are combined.
  • the portions in which the plurality of through holes 31a are formed are formed as plurality of portions protruding in the shape of comb teeth on the side face of the first housing member 31.
  • the second housing member 32 is provided, on its end on the door leading end side, with a first hole portion 32a and a guide connecting hole portion 32b of this embodiment that are formed therethrough so as to extend along the lengthwise direction of the rail 19 and are disposed parallel to each other. Additionally, an internally threaded portion is formed on the inner circumference of the first hole portion 32a and the guide connecting hole portion 32b.
  • FIG. 10 is a diagram showing the pivot shaft 34 and the pivot member 35 shown in FIG. 9 , together with the rail 19, with illustration of other elements being omitted.
  • the pivot shaft 34 is provided as a columnar pin member, and is disposed extending along the lengthwise direction of the rail 19 in the door roller unit 29a.
  • the pivot shaft 34 is inserted into the plurality of through holes 31a that are formed in alignment in the first housing member 31, and is rotatably supported to the first housing member 31.
  • the pivot shaft 34 is provided, at its end of the door leading end side, with a notched portion 34a that is recessed so as to be notched in the shape of a groove along the circumferential direction.
  • the second housing member 32 is provided with a notch engaging portion 32c that is formed as a semicircular-arc recess so as to be fitted along the half of the outer circumference of the notched portion 34a and to be engaged with the notched portion 34a.
  • the pivot member 35 shown in FIGS. 7 to 10 is provided with portions in which the plurality of through holes 35a through which the pivot shaft 34 passes through are formed, and a suspension supporting member 35b that is formed in the shape of an integral plate below the portion in which the through holes 35a are formed and on which the door 11 is suspended via a hanger member 41. Additionally, the hanger member 41 is fixed to the suspension supporting member 35b via fixing bolts 42 on the upper end side, and is fixed to the door 11 via fixing bolts 43 on the lower end side (see FIG. 3 , FIG. 4 , FIG. 9 ).
  • the portions of the pivot member 35 in which the plurality of (in this embodiment, two) through holes 35a are formed are disposed facing the first housing member 31.
  • the pivot shaft 34 is inserted into all of the plurality of through holes (31a, 35a).
  • the pivot member 35 is also rotatably supported to the pivot shaft 34 rotatably supported to the first housing member 31, and the pivot member 35 is provided pivotably about the pivot shaft 34.
  • the pivot member 35 in a state in which the suspension supporting member 35b is located along the vertical direction is indicated by the solid line
  • the pivot member 35 in a state in which it is pivoted from the aforementioned state is indicated by the two-dot chain line.
  • the externally threaded member 38a shown in FIG. 8 is provided as a thread member for assembling and fixing the first housing member 31 and the second housing member 32 together.
  • the externally threaded member 38a is formed so as to passes through a through hole 40a that is formed through the first housing member 31 and to be engaged with the first housing member 31 at its end.
  • the externally threaded member 38a is configured to be threadedly engaged, at an externally threaded portion on its outer circumference, with an internally threaded hole 39a that is formed through the rotational shaft 37a in the axial direction and that has an internally threaded portion formed on its inner circumference, in a state in which the externally threaded member 38a is engaged with the first housing member 31.
  • the threaded engagement of the externally threaded member 38a with the internally threaded hole 39a is performed in a state in which the notched portion 34a of the pivot shaft 34 passing through the plurality of through holes (31a, 35a) is engaged with the notch engaging portion 32c of the second housing member 32.
  • the first housing member 31 supporting, via the pivot shaft 34, the pivot member 35 on which the door 11 is suspended and the second housing member 32 supporting the pivot shaft 34 in the engaged state are fixed to each other with a single externally threaded member 38a in a state in which the door roller 36a is rotatably supported thereon.
  • the externally threaded members (38b, 38c) shown in FIG. 8 are provided as thread members for assembling and fixing the first housing member 31 and the third housing member 33 together.
  • the externally threaded member 38b is formed so as to passes through a through hole 40b that is formed through the first housing member 31 and to be engaged with the first housing member 31 at its end.
  • the externally threaded member 38b is configured to be threadedly engaged, at an externally threaded portion on its outer circumference, with an internally threaded hole 39b that is formed through the rotational shaft 37b in the axial direction and that has an internally threaded portion formed on its inner circumference, in a state in which the externally threaded member 38b is engaged with the first housing member 31.
  • the externally threaded member 38c is formed so as to passes through a through hole 40c that is formed through the first housing member 31 and to be engaged with the first housing member 31 at its end. Also, the externally threaded member 38c is configured to be threadedly engaged, at an externally threaded portion on its outer circumference, with an internally threaded hole 39c that is formed through the rotational shaft 37c in the axial direction and that has an internally threaded portion formed on its inner circumference, in a state in which the externally threaded member 38c is engaged with the first housing member 31.
  • the guide portion 30 is formed as a shaft-like member extending along the lengthwise direction of the rail 19, and externally threaded portions are formed at its both ends (30a, 30b).
  • the end portion 30a of the guide portion 30 on the door trailing end side is threadedly engaged with the guide connecting hole portion 32b formed in the second housing member 32 of the door roller unit 29a.
  • a fixing nut 44a is threadedly engaged with the end portion 30a on the door trailing end side to the base side of the externally threaded portion before the end portion 30a is threadedly engaged with the guide connecting hole portion 32b.
  • the guide portion 30 and the door roller unit 29a are fixed to each other by rotating the fixing nut 44a toward the second housing member 32 on the door trailing end side in the fastening direction in a state in which the end portion 30a on the door trailing end side is threadedly engaged with the fixing nut 44a.
  • the end portion 30b of the guide portion 30 on the door leading end side is threadedly engaged with the guide connecting hole portion 32b formed in the second housing member 32 of the door roller unit 29b.
  • a fixing nut 44b is threadedly engaged with the end portion 30b on the door leading end side to the base side of the externally threaded portion before the end portion 30b is threadedly engaged with the guide connecting hole portion 32b.
  • the guide portion 30 and the door roller unit 29b are fixed to each other by rotating the fixing nut 44b toward the second housing member 32 on the door leading end side in the fastening direction in a state in which the end portion 30b on the door leading end side is threadedly engaged with the fixing nut 44b.
  • the door roller unit 29a and the door roller unit 29b are connected and fixed to each other via the guide portion 30, and the door rollers (36a, 35b, 36c) are disposed on each of the opposite sides along the lengthwise direction of the rail 19 with respect to the guide portion 30.
  • the guide portion 30 is connected to the pair of door roller units 29 as described above in a state in which it is slidably inserted into the guide hole portion 27a formed in the first block portion 27 of the drive connection portion 21.
  • the guide portion 30 is configured to guide the movement of the drive connection portion 21 in a direction along the lengthwise direction of the rail 19.
  • the door suspension apparatus 1 is configured such that the direction in which the guide portion 30 and the door rollers (36a, 36b, 36c) are disposed along the lengthwise direction of the rail 19 and the direction in which the first hole portion 32a and the second hole portion 28a extend along the lengthwise direction of the rail 19 are arranged side by side in the horizontal direction and displaced parallel to each other.
  • variable connection portion 23 shown in FIGS. 4 to 6 is provided as a connecting structure that connects the drive connection portion 21 to the door roller portion 22 such that the relative position between the drive connection portion 21 and the door roller portion 22 in a direction along the lengthwise direction of the rail 19 can be changed.
  • the variable connection portion 23 includes a fastening mechanism including a bolt 45, a first nut 46, and a second nut 47.
  • the bolt 45 is provided as a member that passes through the first hole portion 32a formed in the first housing member 32 of the door roller unit 29a of the door roller portion 22 and the second hole portion 28a formed in the second block portion 28 of the drive connection portion 21.
  • the bolt 45 is inserted into the second hole portion 28a extending along the lengthwise direction of the rail 19 from the door leading end side, and is disposed such that a bolt head 45a thereof is engaged with the second block portion 28 of the drive connection portion 21.
  • the first hole portion 32a extends along the lengthwise direction of the rail 19, is disposed on the door trailing end side with respect to the second hole portion 28a, and is formed so as to face the second hole portion 28a.
  • the internally threaded portion is formed in the first hole portion 32a as described above, and the bolt 45 is disposed so as to pass through the first hole portion 32a by its externally threaded portion inserted into the first hole portion 32a from the door leading end side and threadedly engaged with the internally threaded portion.
  • the first nut 46 is disposed so as to be threadedly engaged with the bolt 45 from its end on the door trailing end side toward the door leading end side, and to be engaged with the second housing member 32 of the door roller portion 22 from the door trailing end side.
  • the second nut 47 is attached to the bolt 45 in a state in which the bolt has passed through the second hole portion 28a and has not passed through the first hole portion 32a such that the second nut 47 is threadedly engaged with the bolt 45 from its end on the door trailing end side toward the door leading end side.
  • the second nut 47 is disposed on the side opposite from the bolt head 45a with the second hole portion 28a disposed in between, and is disposed so as to be engaged with the second block portion 28 of the drive connection portion 21 from the door trailing end side.
  • the fastening mechanism including the bolt 45, the first nut 46, and the second nut 47 is configured to be capable of fixing the door roller portion 22 and the drive connection portion 21 to each other such that their relative position along the lengthwise direction of the rail 19 can be changed.
  • the following describes the operation of the door suspension apparatus 1 when a worker performs the positional adjustment operation for a door 11 after the door apparatus 2 provided with the door suspension apparatus 1 described above has been installed in a structure. Note that the same positional adjustment operation is performed for the door 11 disposed on the drive pulley 14 side and the door 11 disposed on the driven pulley 15 side, and therefore, only a case where the positional adjustment operation is performed for one of the doors 11 will be described in the following.
  • the worker When the positional adjustment operation is performed for the door 11 after the door apparatus 2 has been installed in a structure, the worker first adjusts the position of the door 11 in the up-down direction. Then, the worker causes the lock pin 18 provided in the drive connection portion 21 and the lock member 17 provided on the structure side to be locked to each other in a state in which the open-close drive mechanism 12 is in a position corresponding to the fully closed position, thus bringing about a state that is the same as a state in which the locking device 13 has been operated. At this time, the door 11 is disposed in a state in which the adjustment of its position in the opening and closing direction can be started in the state of being located slightly toward the door trailing end side than toward the fully closed position. This allows the worker to adjust the position of the door 11 in the opening and closing direction, while moving the door 11 toward the door leading end side (that is, while moving the door 11 toward the fully closed position).
  • the worker rotates the first nut 46 on the bolt 45 in a direction in which the bolt head 45a and the first nut 46 are caused to approach each other to fasten the bolt 45 and the first nut 46 together.
  • the position in the opening and closing direction the position along the lengthwise direction of the rail 19 of the bolt head 45a engaged with the drive connection portion 21 will not change.
  • the door roller portion 22 and the first nut 46 are moved so as to approach the drive connection portion 21 and the bolt head 45a whose positions in the opening and closing direction will not change.
  • the door rollers (36a, 36b, 36c) slowly travel on the rail 19, and the door 11 is gradually moved, together with the door roller portion 22, toward the door leading end side (toward the fully closed position).
  • the second nut 47 is appropriately loosen so as not to generate fastening force.
  • the worker fastens the second nut 47 to the drive connection portion 21.
  • the relative position between the door roller portion 22 and the drive connection portion 21 is fixed, completing the positional adjustment of the door 11 in the opening and closing direction.
  • the locking device 13 is in a state in which the lock pin 18 and the lock member 17 remain locked throughout the positional adjustment operation of the door 11 in the opening and closing direction. Accordingly, concurrently with completion of the positional adjustment operation of the door 11 in the opening and closing direction, a state is realized in which the lock pin 18 and the lock member 17 are appropriately locked to each other and the locking device 13 can be operated in the fully closed position of the door 11.
  • variable connection portion 23 includes the fastening mechanism that includes the bolt 45 passing through the first hole portion 32a and the second hole portion 28a provided in the door roller portion 22 and the drive connection portion 21, respectively, and extending along the lengthwise direction of the rail 19, and that is capable of fixing the door roller portion 22 and the drive connection portion 21 to each other such that their relative position can be changed. Accordingly, when the positional adjustment operation of the door 11 in the opening and closing direction is performed, it is possible to directly generate fastening force along the lengthwise direction of the rail 19, which is the opening and closing direction in which the door 11 is slidably moved, thus fixing the door roller portion 22 and the drive connection portion 21 to each other.
  • the fastening mechanism includes the bolt 45 that are engaged with the drive connection portion 21 and the door roller portion 22 and that passes through the first and second hole portions (32a, 38a), and the first nut 46 that is threadedly engaged with the bolt 45. Also, the first hole portion 32a on the door roller portion 22 side that supports the door 11 is disposed on the door trailing end side with respect to the second hole portion 28a on the drive connection portion 21 side, and therefore the door 11 is moved toward the door leading end side when the variable connection portion 23 is adjusted by operating the bolt 45 and the first nut 46 in the fastening direction.
  • the direction in which the first nut 46 engaged on the door roller portion 22 side is fastened and caused to approach toward the bolt 45 engaged on the drive connection portion 21 side can be made coincident with the direction in which the door 11 is moved toward the door leading end side.
  • fastening the second nut 47 threadedly engaged with the bolt 45 allows the bolt 45 to be easily fixed to the drive connection portion 21 by the fastening force acting between the bolt head 45a and the second nut 47 on the door leading end side.
  • the structure that eventually fixes the bolt 45 to the drive connection portion 21 can be realized with a simple configuration in which only the second nut 47 is provided. Accordingly, in the fastening mechanism with good operability in which the direction in which the first nut 46 is fastened to the bolt 45 and the movement direction of the door 11 are coincident, it is also possible to realize a structure that is capable of easily fixing the bolt 45 to the drive connection portion 21 with a simple configuration.
  • the drive connection portion 21 is supported to the door roller portion 22 so as to be movable along the lengthwise direction of the rail 19 via the bolt 45 of the fastening mechanism of the variable connection portion 23, and is supported so as to be movable along the lengthwise direction of the rail 19 also in the guide portion 30 disposed in a position displaced parallel to the bolt 45. Accordingly, it is possible to prevent the drive connection portion 21 from being pivoted about the bolt 45 when the worker performs the operation of adjusting the position of the door 11 in the opening and closing direction, and therefore the worker does not need to retain the drive connection portion so as not to pivot about the bolt 45 during the operation. This can further reduce the burden of the operation.
  • the guide portion 30 is formed as a shaft-like member extending along the lengthwise direction of the rail 19, and therefore the guide portion 30 can be disposed along the rail 19 in a compact manner, making it possible to reduce the size of the door roller portion 22.
  • the guide portion 30 is linearly disposed between the door roller units (29a, 29b), which are the structures that support the plurality of door rollers aligned along the lengthwise direction of the rail 19. Accordingly, it is possible to achieve space saving and weight reduction, compared to a configuration in which the guide portion is provided in a position displaced parallel to the structures that support the plurality of door rollers to achieve integration.
  • the direction in which the first hole portion 32a and the second hole portion 28a extend along the lengthwise direction of the rail 19 and the direction in which the guide portion 30 and the door rollers (36a, 36b, 36c) are disposed along the lengthwise direction of the rail 19 are arranged side by side in the horizontal direction and displaced parallel to each other. Accordingly, the door rollers (36a, 36b, 36c) and the guide portion 30 will not be disposed on the opposite sides in a direction along the lengthwise direction of the rail 19 with respect to the bolt 45 and the first nut 46 of the fastening mechanism.
  • the door 11 With the door suspension apparatus 1 and the door apparatus 2, in the door roller portion 22, the door 11 is suspended to the pivot member 35 via the hanger member 41, and is supported pivotably about the pivot shaft 34. Accordingly, it is possible to achieve a structure in which, when an inclination occurs in the door 11 installed in the structure, the influence of the inclination of the door 11 tend not to be transferred to the door rollers (36a, 36b, 36c).
  • this embodiment when applied to a door with a structure having a curved portion, it is possible to maintain the state of contact between the door rollers and the rail in an optimum state even if a gap serving as a play for mitigating generation of unbalanced load or unusual sound is not provided, thus preventing unbalanced load from acting on the door rollers from the door side, and unusual sound from being generated during travel of the door rollers.
  • the housing structure that supports the door roller 36a in the door roller portion 22 is formed by combining the second housing member 32 with the first housing member 31 to which the rotational shaft 37a of the door roller 36a is attached. Also, the first housing member 31 and the second housing member 32 are fixed integrally by causing a single externally threaded member 38a to be threadedly engaged with the internally threaded hole 39a of the rotational shaft 37a of the door roller 36a in a state in which the pivot shaft 34 serving as the pivot center of the pivot member 35 is engaged, at its notched portion 34a, with the notch engaging portion 32c provided in the second housing member 32.
  • the housing structure of the door roller portion 22 can be easily disassembled by removing a single externally threaded member 38a from the internally threaded hole 39a. Accordingly, in the door roller portion 22 that suspends the door 11 to the pivot member 35 and that supports the door 11 pivotably about the pivot shaft 34, the housing structure of the door roller portion 22 can be easily disassembled by simply removing a single externally threaded member 38a, making it possible to reduce the burden of the maintenance operation.
  • an open-close drive mechanism 60 includes a drive motor (not shown), a pinion 61, an upper rack 62, a lower rack 63, and so forth.
  • the pinion 61 is connected to the drive motor, and is rotationally driven with rotation of the drive motor.
  • the pinion 61 is disposed so as to be meshed with the upper rack 62 that is disposed thereabove so as to extend horizontally and the lower rack 63 that is disposed therebelow so as to extend horizontally.
  • the upper rack 62 and the lower rack 63 are supported to the structure so as to be slidably moved parallel to the lengthwise direction of the rail 19.
  • the upper rack 62 and the lower rack 63 are configured to be slidably moved in opposite directions to each other by rotation of the pinion 61. Further, the upper rack 62 is connected to a door suspension apparatus 1 that supports one of two doors 11 in a suspended state, and the lower rack 63 is connected to a door suspension apparatus 1 that supports the other of the two doors 11 in a suspended state. Accordingly, rotations of the pinion 61 with a forward operation and a reverse operation of the drive motor cause the two doors 11 to be driven to be moved in the opening direction and the closing direction.
  • an open-close drive mechanism 70 includes a drive motor 71, a screw shaft 72, a rotation receiving portion 73, nut members (74a, 74b), and so forth.
  • the screw shaft 72 is connected to the drive motor 71 at its one end, and is rotatably supported by the rotation receiving portion 73 at the other end. Accordingly, the screw shaft 72 is rotationally driven with rotation of the drive motor 71.
  • an externally threaded portion 72a formed from the center portion to one end and an externally threaded portion 72b formed from the center portion to the other end are formed as threaded portions in reverse directions.
  • the nut members (74a, 74b) are provided as members that are threadedly engaged with the screw shaft 72 and are connected to the door suspension apparatus 1.
  • the nut member 74a is threadedly engaged with one of the externally threaded portions of the screw shaft 72, namely the externally threaded portion 72a, and is connected to a door suspension apparatus 1 that supports one of two doors 11 in a suspended state.
  • the nut member 74b is threadedly engaged with the other externally threaded portion of the screw shaft 72, namely the externally threaded portion 72b, and is connected to a door suspension apparatus 1 that supports the other of the two doors 11 in a suspended state. Accordingly, rotations of the screw shaft 72 with a forward operation and a reverse operation of the drive motor 71 cause the two doors 11 to be driven to be moved in the opening direction and the closing direction.
  • the present invention is widely applicable as a door suspension apparatus that supports a door provided in a structure and driven to be opened and closed by an open-close drive mechanism, in a state in which the door is suspended to the structure so as to be slidably moved, and that is connected to the open-close drive mechanism, and a door apparatus including the door suspension apparatus.

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  • Engineering & Computer Science (AREA)
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  • Power-Operated Mechanisms For Wings (AREA)

Claims (11)

  1. Appareil de suspension de porte (1, 3) qui supporte une porte (11) mise en place dans une structure et entraînée pour être ouverte et fermée par un mécanisme d'entraînement d'ouverture-fermeture (12), dans un état dans lequel la porte (11) est suspendue à la structure de manière à pouvoir coulisser, et qui est relié au mécanisme d'entraînement d'ouverture-fermeture (12), l'appareil (1) comprenant :
    une partie de liaison d'entraînement (21) qui est pourvue d'une partie de verrouillage (17) et d'une partie verrouillée (18) d'un dispositif de verrouillage (13) destiné à verrouiller la porte (11) sur la structure, dans une position complètement fermée, par verrouillage entre la partie de verrouillage (17) et la partie verrouillée (18), et qui est reliée au mécanisme d'entraînement d'ouverture-fermeture (12) ;
    une partie galet de porte (22) qui comporte un galet de porte se déplaçant sur un rail (19) fixé dans la structure, qui est reliée à la porte (11) et qui supporte la porte (11) dans un état dans lequel la porte (11) est suspendue au rail (19) de manière à pouvoir coulisser ; et
    une partie de liaison variable (23, 50) qui relie la partie de liaison d'entraînement (21) à la partie galet de porte (22), de manière qu'une position relative entre la partie de liaison d'entraînement (21) et la partie galet de porte (22) dans une direction le long de la direction longitudinale du rail (19) puisse être modifiée,
    dans lequel la partie galet de porte (22) comprend une première partie trou (32a, 52) qui est formée à travers celle-ci de manière à s'étendre le long de la direction longitudinale du rail (19),
    la partie de liaison d'entraînement (21) comprend une seconde partie trou (28a) qui s'étend le long de la direction longitudinale du rail (19) et qui est formée à travers celle-ci de manière à faire face à la première partie trou (32a, 52), et
    la partie de liaison variable (23, 50) comprend un mécanisme de fixation qui comporte un élément passant au travers de la première partie trou (32a, 52) et de la seconde partie trou (28a) et qui est apte à fixer la partie galet de porte (21) et la partie de liaison d'entraînement (21) l'une à l'autre, de manière qu'une position relative entre elles puisse être modifiée.
  2. Appareil de suspension de porte (1) selon la revendication 1,
    dans lequel le mécanisme de fixation comprend un boulon (45) qui tient lieu d'élément passant au travers de la première partie trou (32a) et de la seconde partie trou (28a) et dont la tête de boulon (45a) est solidarisée à l'une de la partie galet de porte (22) et de la partie de liaison d'entraînement (21), et un premier écrou (46) qui est solidarisé par vissage au boulon (45) et qui est solidarisé à l'autre de la partie galet de porte (22) et de la partie de liaison d'entraînement (21), et
    la première partie trou (32a) est disposée d'un côté d'extrémité arrière de porte qui est le côté où se situe l'extrémité de la porte (11) dans une direction d'ouverture, par rapport à la seconde partie trou (28a).
  3. Appareil de suspension de porte (1) selon la revendication 2,
    dans lequel le mécanisme de fixation comprend en outre un second écrou (47) qui est solidarisé par vissage au boulon (45),
    le boulon (45) est inséré dans la seconde partie trou (28a) depuis un côté d'extrémité avant de porte qui est le côté où se situe l'extrémité de la porte (11) dans la direction de fermeture, et la tête de boulon (45a) est solidarisée à la partie de liaison d'entraînement (21), le second écrou (47) est disposé du côté opposé à la tête de boulon (45a) via la seconde partie trou (28a) et est solidarisé à la partie de liaison d'entraînement (21) depuis le côté d'extrémité arrière de porte, et
    le premier écrou (46) est solidarisé à la partie galet de porte (22) depuis le côté d'extrémité arrière de porte.
  4. Appareil de suspension de porte (1, 3) selon l'une quelconque des revendications 1 à 3,
    dans lequel la partie galet de porte (22) comprend en outre une partie guide (30) destinée à guider le mouvement de la partie de liaison d'entraînement (21) le long de la direction longitudinale du rail (19), et
    une direction dans laquelle la première partie trou (32a, 52) et la seconde partie trou (28a) s'étendent dans la direction longitudinale du rail (19) et une direction dans laquelle la partie guide (30) est disposée le long de la direction longitudinale du rail (19) sont déplacées parallèlement l'une par rapport à l'autre.
  5. Appareil de suspension de porte (1, 3) selon la revendication 4,
    dans lequel la partie guide (30) se présente sous la forme d'un élément de type arbre s'étendant le long de la direction longitudinale du rail (19), et est insérée de manière à pouvoir glisser dans une partie trou de guide (27a) qui est formée à travers la partie de liaison d'entraînement (21), et
    la partie galet de porte est disposée de chaque côté dans une direction le long de la direction longitudinale du rail (19) par rapport à la partie guide (30).
  6. Appareil de suspension de porte (1, 3) selon la revendication 5,
    dans lequel une direction dans laquelle la première partie trou (32a, 52) et la seconde partie trou (28a) s'étendent le long de la direction longitudinale du rail (19) et une direction dans laquelle la partie guide (30) et la partie galet de porte sont disposées le long de la direction longitudinale du rail (19) sont agencées côte à côte dans la direction horizontale et déplacées parallèlement l'une par rapport à l'autre.
  7. Appareil de suspension de porte (1, 3) selon l'une quelconque des revendications 1 à 6,
    dans lequel la partie galet de porte (22) comprend un axe de pivotement (34) qui est disposé de manière à s'étendre le long de la direction longitudinale du rail (19), et un élément formant pivot (35) qui est mis en place de manière à pouvoir pivoter autour de l'axe de pivotement (34) et sur lequel la porte (11) peut être suspendue.
  8. Appareil de suspension de porte (1, 3) selon la revendication 7,
    dans lequel la partie galet de porte (22) comprend en outre un arbre tournant destiné à supporter en rotation le galet de porte, un premier élément formant logement (31) dans lequel est formé un trou traversant passant au travers de l'axe de pivotement (34), un second élément formant logement (32) auquel est attaché l'arbre tournant et qui est disposé en regard du premier élément formant logement (31),
    l'axe de pivotement (34) est pourvu d'une partie entaillée (34a) qui est en retrait de manière à être entaillée selon une forme de rainure le long de sa direction circonférentielle,
    le premier élément formant logement (31) et/ou le second élément formant logement (32) est ou sont pourvu(s) d'une partie de coopération avec une entaille (32c) qui coopère avec la partie entaillée (34a), et
    le premier élément formant logement (31) et le second élément formant logement (32) sont fixés l'un à l'autre à l'aide d'un seul élément à filetage extérieur (38a) qui est solidarisé par filetage à un trou à filetage intérieur (39a) formé dans l'arbre tournant.
  9. Appareil de suspension de porte (3) selon la revendication 1,
    dans lequel une première partie trou côté d'extrémité avant de porte (52) qui est disposée d'un côté d'extrémité avant de porte qui est le côté où se situe l'extrémité de la porte (11) dans la direction de fermeture, par rapport à la seconde partie trou (28a), est ménagée en tant que première partie trou (52),
    le mécanisme de fixation comporte un élément passant au travers de la première partie trou côté d'extrémité avant de porte (52) et de la seconde partie trou (28a), et est apte à fixer la partie galet de porte (22) et la partie de liaison d'entraînement (21), de manière qu'une position relative entre elles puisse être modifiée,
    la partie de liaison variable (50) comprend en outre un mécanisme de refoulement qui sollicite la partie galet de porte (22) vers la partie de liaison d'entraînement (21) dans une direction de fermeture de la porte (11), et
    le mécanisme de refoulement maintient une position relative de la partie galet de porte (22) par rapport à la partie de liaison d'entraînement (21), jusqu'à ce qu'une force d'une grandeur prédéterminée ou supérieure agisse sur la partie galet de porte (22) dans une direction d'ouverture de la porte (11), et permette un mouvement relatif de la partie galet de porte (22) par rapport à la partie de liaison d'entraînement (21) dans la direction d'ouverture de la porte (11) à l'intérieur d'une gamme de distances lorsqu'une force d'une grandeur prédéterminée ou supérieure agit sur la partie galet de porte (22) dans la direction d'ouverture de la porte (11).
  10. Appareil de suspension de porte (3) selon la revendication 9,
    dans lequel le mécanisme de refoulement comprend un ressort hélicoïdal (51) qui est disposé entre la première partie trou côté d'extrémité avant de porte (52) et la seconde partie trou (28a) et que traverse l'élément passant au travers de la première partie trou côté d'extrémité avant de porte (52) et de la seconde partie trou (28a), et sollicite la partie galet de porte (22) vers la partie de liaison d'entraînement (21) dans la direction de fermeture de la porte (11) au moyen d'une force de sollicitation du ressort hélicoïdal (51).
  11. Appareil de porte (2, 4, 5) comprenant : l'appareil de suspension de porte (1, 3) selon l'une quelconque des revendications 1 à 10 ; une porte (11) qui est mise en place dans une structure et qui est supportée par l'appareil de suspension de porte (1, 3), à l'état suspendu à la structure, de manière à pouvoir coulisser ; un mécanisme d'entraînement d'ouverture-fermeture (12) qui est relié à l'appareil de suspension de porte (1, 3) et qui entraîne la porte (11) pour l'ouvrir et la fermer.
EP10815263.8A 2009-09-10 2010-08-25 Appareil de suspension et appareil de porte équipé d'un tel appareil de suspension Not-in-force EP2476848B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009209591 2009-09-10
PCT/JP2010/064326 WO2011030666A1 (fr) 2009-09-10 2010-08-25 Appareil de suspension de porte et appareil de porte équipé de celui-ci

Publications (3)

Publication Number Publication Date
EP2476848A1 EP2476848A1 (fr) 2012-07-18
EP2476848A4 EP2476848A4 (fr) 2017-01-04
EP2476848B1 true EP2476848B1 (fr) 2018-10-10

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Application Number Title Priority Date Filing Date
EP10815263.8A Not-in-force EP2476848B1 (fr) 2009-09-10 2010-08-25 Appareil de suspension et appareil de porte équipé d'un tel appareil de suspension

Country Status (5)

Country Link
EP (1) EP2476848B1 (fr)
JP (1) JP5373090B2 (fr)
CN (1) CN102482910B (fr)
TW (1) TWI418697B (fr)
WO (1) WO2011030666A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012157492A1 (fr) 2011-05-16 2012-11-22 ナブテスコ株式会社 Dispositif de suspension de porte et appareil de type porte associé
JP5701914B2 (ja) * 2013-01-28 2015-04-15 京楽産業．株式会社 遊技機、及び移動部の停止位置決め方法
JP6530612B2 (ja) * 2015-02-10 2019-06-12 ナブテスコ株式会社 戸吊装置
JP6542540B2 (ja) * 2015-02-10 2019-07-10 ナブテスコ株式会社 戸吊装置
JP5959676B2 (ja) * 2015-02-13 2016-08-02 京楽産業．株式会社 遊技機
PL3211163T3 (pl) 2016-02-29 2021-10-25 Laguna Fabryka Okuć Spółka Z Ograniczoną Odpowiedzialnością Spółka Jawna Urządzenie regulacyjne, w szczególności dla drzwi przesuwnych
JP7371539B2 (ja) * 2020-03-12 2023-10-31 富士電機株式会社 戸閉装置および戸閉装置の取付方法

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GB814297A (en) * 1955-01-21 1959-06-03 Karl Sagl Sliding door, particularly for vehicles
AT362663B (de) * 1978-05-29 1981-06-10 Ife Gmbh Schwenkschiebetuer
JPS62103984U (fr) * 1985-12-21 1987-07-02
US6009668A (en) * 1996-01-22 2000-01-04 Westinghouse Air Brake Company Power door operator having rotary drive and drive operated direct panel lock
CN101048564B (zh) * 2004-10-26 2011-08-10 卡巴吉尔根股份公司 用于密封的滑动门的悬挂设备和滑架
JP4562502B2 (ja) * 2004-11-26 2010-10-13 千蔵工業株式会社 自動ドア装置
JP4994792B2 (ja) * 2006-11-10 2012-08-08 ナブテスコ株式会社 ドア開閉装置

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Also Published As

Publication number Publication date
TWI418697B (zh) 2013-12-11
EP2476848A4 (fr) 2017-01-04
JP5373090B2 (ja) 2013-12-18
CN102482910A (zh) 2012-05-30
EP2476848A1 (fr) 2012-07-18
JPWO2011030666A1 (ja) 2013-02-07
WO2011030666A1 (fr) 2011-03-17
TW201115007A (en) 2011-05-01
CN102482910B (zh) 2014-12-10

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