JP6658703B2 - Door device for elevator car - Google Patents

Description

  The present invention relates to an elevator car door device provided with a door panel that opens and closes an entrance of a car that moves up and down a hoistway.

  The elevator is a car that moves up and down (moves up and down) along a hoistway provided in a structure such as a building having a plurality of floors, and includes a car that can be stopped at a floor specified by a user.

  The car includes a car body having an entrance for a user to get on and off, and a door device for opening and closing the entrance of the car body.

  Generally, the door device is a door panel arranged corresponding to the entrance of the car body, a door panel provided movably in a horizontal direction perpendicular to the up-down direction, and moving the door panel, the entrance and exit An opening and closing device for opening and closing.

  In this type of door device, for example, an opening / closing device includes a motor having an output shaft, a pinion gear concentrically connected to the output shaft, and a rack gear meshed with the pinion gear (for example, see Patent Document 1). ).

  The rack gear extends in the movement direction of the door panel (the same direction as the path of the door panel), and is directly or indirectly connected to the door panel.

  In this type of opening / closing device, since the rack gear meshes with the pinion gear, the rack gear moves in the direction in which the rack gear extends when the pinion gear is rotated by the driving of the motor. Therefore, the door panel arranged corresponding to the entrance / exit moves in accordance with the movement of the rack gear, and opens / closes the entrance / exit.

  By the way, in the opening / closing device having the above configuration, a pinion gear meshing with a rack gear connected to the door panel is rotatably provided in a state where the driving of the motor is stopped. Therefore, when a force is applied to the door panel in the direction of opening and closing the door, the movement of the rack gear connected to the door panel is not restricted by the pinion gear, and the door panel moves.

  Some motors have a brake, but if the brake breaks down, when a force is applied to the door panel in the direction of opening and closing the door, the rack gear connected to the door panel and the rack gear The meshing pinion gear follows and moves without being restricted by the brake of the motor.

  Therefore, in the opening / closing device having the above-described configuration, there is a possibility that the door panel may move in a state where the door panel fully opens the entrance and a state where the entrance is fully closed.

U.S. Pat. No. 6,708,128

  The present invention provides an elevator car door device that can prevent the door panel from being accidentally moved when the door panel completely closes and fully opens the entrance / exit of the car body.

  The present invention is a door panel movably provided on a track, between a fully closed position at which a door provided on a car body accommodating a user is fully closed and a fully open position at which the door is fully opened. A door panel provided so as to be able to reciprocate, an opening / closing device for moving the door panel between a fully closed position and a fully open position, and a door panel regulation for regulating movement of the door panel in a state where the door panel is at the fully open position and the fully closed position. An opening / closing device, a single motor, a rack gear extending in the same direction as the track of the door panel, a rack gear directly or indirectly connected to the door panel, and a pinion gear meshing with the rack gear. A pinion gear that rotates in response to driving of a motor, wherein the pinion gear is used when the door panel moves from the fully closed position to the fully open position and when the door panel is fully closed from the fully open position. The door panel restricting device is a rotating cam concentrically connected to a pinion gear, the rotating cam having a cam surface on an outer periphery, and a rotating cam. A contact body provided so as to be able to contact the cam surface, and an elastic body that presses the contact body against the cam surface, the cam surface having a constant radius of curvature from the rotation center of the rotary cam, A first regulating surface adjacent at one end in a circumferential direction of the arc surface, the first regulating surface having a distance from the rotation center of the rotary cam shorter than a radius of curvature of the arc surface; and a circumferential direction of the arc surface. A second regulating surface adjacent to the other end of the rotating cam, the second regulating surface having a distance from the rotation center of the rotary cam shorter than the radius of curvature of the circular arc surface, and the rotation center and the rotation center of the rotation cam in the circumferential direction. An imaginary line connecting one end of the arc surface and the rotation center and circumference of the rotating cam Is set to be less than the rotation angle of the pinion gear when the door panel moves from the fully closed position to the fully open position or when the door panel moves from the fully open position to the fully closed position. .

  As one mode of the present invention, it is preferable that the contact body is a cam follower rotatable around an axis extending in the same direction as the direction in which the rotation center of the rotary cam extends.

  As another aspect of the present invention, it is preferable that the door panel regulating device includes a support mechanism that supports the contact body so as to be movable in the radial direction of the rotating cam.

  In this case, the support mechanism is a lever extending in one direction and having a first end in the one direction and a second end opposite to the first end, wherein the first end and the first end are connected to each other. A lever rotatable around an axis extending in the same direction as the rotation center of the contact body at an intermediate position between the two ends, the contact body is attached to the first end of the lever, and the elastic body is The second end of the lever may be biased.

  As another aspect of the present invention, the cam surface of the rotary cam includes a plane connecting one end and the other end of the circular arc surface in the circumferential direction, and a region adjacent to one end of the circular arc surface in the plane is a first regulating surface. A region adjacent to the other end of the arc surface in the plane may be the second regulating surface.

  ADVANTAGE OF THE INVENTION This invention can produce the outstanding effect that a door panel can prevent a door panel moving inadvertently in the state where the entrance / exit of the car main body was fully closed and fully opened.

FIG. 1 is a schematic partial perspective view of an elevator according to one embodiment of the present invention. FIG. 2 is a schematic perspective view of the elevator car according to the embodiment as viewed from above. FIG. 3 is a schematic top view of a car including the car door device according to the embodiment. FIG. 4 is a partially enlarged view including the opening / closing device of the car door device according to the embodiment. FIG. 5 is a partial side view around the motor of the car door device according to the embodiment. FIG. 6 is a partial side view of the vicinity of one pinion gear of the car door device according to the embodiment. FIG. 7 is a partial side view around the other pinion gear of the car door device according to the embodiment. FIG. 8 is a partially enlarged view including a door panel regulating device in the car door device according to the same embodiment. FIG. 9 is a partially enlarged view including a door panel regulating device in the car door device according to the same embodiment. FIG. 10 is a partially enlarged view including a door panel regulating device in the car door device according to the same embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, the elevator 1 is a car 2 that moves up and down (moves up and down) along a hoistway R provided in a structure such as a building having a plurality of floors F. And a car 2 that can be stopped.

  As shown in FIG. 2, the car 2 includes a car body 3 having an entrance 300 for getting on and off the floor F designated by the user, and door panels 40 a and 40 b for opening and closing the entrance 300 of the car body 3. A door device (hereinafter, simply referred to as a door device) 4.

  The car main body 3 defines a cylindrical accommodation space for accommodating the user. Specifically, the car body 3 includes a cylindrical peripheral wall portion 30, a ceiling portion 31 located above the peripheral wall portion 30, and a floor portion 32 located below the peripheral wall portion 30. The entrance / exit 300 is provided in the peripheral wall portion 30. The entrance 300 has a square shape in a front view.

  Below the entrance 300 of the car main body 3, there are provided rails 33 formed corresponding to the tracks DRa, DRb of the door panels 40a, 40b, and guide the lower part of the door panels 40a, 40b. . Although details will be described later, the trajectories DRa and DRb of the door panels 40a and 40b when opening and closing the entrance 300 are set in an arc shape. Accordingly, the rail 33 is formed in an arc shape when viewed from above and below so as to correspond to the tracks DRa and DRb of the door panels 40a and 40b.

  The door device 4 is a pair of door panels 40a and 40b movably provided on the same or substantially the same arc-shaped trajectories DRa and DRb having the same or substantially the same radius of curvature Ra and Rb and the centers of curvature CP1 and CP2, respectively. A pair of door panels 40a and 40b for opening and closing the entrance 300 provided in the car body 3 to be accommodated, and an opening and closing device 41 for bringing the pair of door panels 40a and 40b into and out of contact are provided. Further, the door device 4 restricts the door panels 40a, 40b from moving along the trajectories DRa, DRb in a state in which the door panels 40a, 40b fully open the entrance 300 and a state in which the entrance 300 is fully closed, respectively. An apparatus 42 is provided.

  In the present embodiment, the pair of door panels 40a and 40b are arranged side by side. Each of the pair of door panels 40a and 40b has a first end and a second end opposite to the first end in a direction perpendicular to the up-down direction. The pair of door panels 40a and 40b contact each other at the first end with the entrance 300 closed, and separate the first ends at the opening of the entrance 300 (not shown). That is, the pair of door panels 40a and 40b are moved in opposite directions to bring the first ends of the door panels into contact with each other to close the entrance 300, and to separate the first ends of the door panels 40a and 40b from each other. The position is changed to the fully opened position P2 in which the entrance 300 is opened.

  In the present embodiment, each of the pair of door panels 40a and 40b is formed in an arc shape when viewed from above and below so as to correspond to its own orbits DRa and DRb, as shown in FIGS. . The respective centers of curvature CP3 of the pair of door panels 40a and 40b coincide with the centers of curvature CP1 and CP2 of the arc-shaped orbits DRa and DRb.

  In the present embodiment, the centers of curvature CP3 of the pair of door panels 40a and 40b coincide with the centers of curvature CP4 of the peripheral wall portions 30 on both sides of the entrance 300 of the car body 3. In the present embodiment, since the peripheral wall 30 of the car body 3 is formed in a cylindrical shape, the center of curvature CP3 of the pair of door panels 40a and 40b coincides with the center of the peripheral wall 30 (center of curvature CP4). Accordingly, the pair of door panels 40a and 40b move along the peripheral wall 30 when moving on the tracks DRa and DRb (when changing the position between the fully closed position P1 and the fully open position P2).

  As shown in FIGS. 3 and 4, the opening / closing device 41 includes a single motor 410 and a pair of rack gears 411 a and 411 b provided corresponding to each of the pair of door panels 40 a and 40 b. A pair of rack gears 411a and 411b directly or indirectly connected to the pair of gears 40a and 40b, and a pair of pinion gears 412a and 412b provided corresponding to the pair of rack gears 411a and 411b, respectively. The drive of the motor 410 is transmitted to the pair of pinion gears 412a and 412b such that the pair of pinion gears 412a and 412b mesh with the corresponding rack gears 411a and 411b and the pair of pinion gears 412a and 412b are moved in opposite directions. And a drive transmission mechanism 413 that performs the operation. The opening / closing device 41 according to the present embodiment includes a pair of arm bodies 414a and 414b that connect each of the pair of rack gears 411a and 411b to the corresponding door panel 40a and 40b.

  In the present embodiment, the opening / closing device 41 is supported by the ceiling 31 of the car body 3. Specifically, the opening / closing device 41 is supported by the ceiling 31 in a state where the opening / closing device 41 is disposed above the ceiling 31 of the car body 3.

  In the present embodiment, the motor 410 is an electric motor. Although a motor with a speed reducer can be used as the motor 410, in the present embodiment, a motor whose output is adjusted by electrical control (for example, a stepping motor, a pulse motor, a servo motor, or the like) Is adopted.

  As shown in FIG. 5, the motor 410 has an output shaft (not numbered). The motor 410 has an output shaft positioned vertically. In this embodiment, the opening / closing device 41 has a base 415 for connecting to the ceiling 31 of the car body 3, and the motor 410 is fixed via a bracket 416 connected to the base 415.

  Returning to FIG. 4, each of the pair of rack gears 411a and 411b is formed in an arc shape corresponding to the trajectories DRa and DRb of the corresponding door panels 40a and 40b. The respective centers of curvature CP5, CP6 of the pair of rack gears 411a, 411b coincide or substantially coincide with the centers of curvature CP1, CP2 of the arc-shaped orbits DRa, DRb. The curvature radii Rc and Rd of the pair of rack gears 411a and 411b are the same.

  Specifically, each of the pair of rack gears 411a and 411b has a plurality of teeth (not numbered) arranged in the direction in which the rack gears 411a and 411b extend, and has a plurality of teeth that mesh with the pinion gears 412a and 412b. The pair of rack gears 411a and 411b have the same number of teeth. In each of the rack gears 411a and 411b, a plurality of teeth are arranged along an arcuate virtual line (a so-called reference line that divides the tooth height into a root at the base of the tooth and a root at the end of the tooth) BL1 and BL2. The centers of curvature CP5 and CP6 of the arc-shaped virtual lines (reference lines BL1 and BL2) coincide or substantially coincide with the centers of curvature CP1 and CP2 of the arc-shaped orbits DRa and DRb. The curvature radii Rc and Rd of the reference lines BL1 and BL2 of the pair of rack gears 411a and 411b are the same.

  In the present embodiment, one rack gear 411a has a plurality of teeth on its outer circumference that mesh with the corresponding pinion gear 412a, and the other rack gear 411b has a plurality of teeth on its inner circumference that mesh with the corresponding pinion gear 412b. are doing.

  As shown in FIGS. 6 and 7, each of the pair of pinion gears 412a and 412b is rotatably mounted on a shaft (not numbered) fixed to the base 415. The pair of pinion gears 412a and 412b are the same gear. That is, the pair of pinion gears 412a and 412b have the same module, number of teeth, pitch circle diameter, number of teeth, tooth width, and tooth height.

  In the present embodiment, each of the pair of pinion gears 412a and 412b moves when the door panels 40a and 40b move from the fully closed position P1 to the fully open position P2, and when the door panels 40a and 40b move from the fully open position P2 to the fully closed position P1. Is set so as to rotate at one rotation or less (one rotation or less).

  Referring back to FIG. 4, in the present embodiment, as described above, one rack gear 411a has a plurality of teeth on its outer periphery that mesh with the corresponding pinion gear 412a, and the other rack gear 411b meshes with the corresponding pinion gear 412b. The center of curvatures CP5 and CP6 of the reference lines BL1 and BL2 coincide with or substantially coincide with the centers of curvature CP1 and CP2 of the arc-shaped orbits DRa and DRb, respectively. The reference lines BL1 and BL2 of the pair of rack gears 411a and 411b have the same radius of curvature Rc and Rd.

  Accordingly, the distance from the meshing position between one rack gear 411a and one pinion gear 412a to the center of curvature CP1 of the arc-shaped orbit DRa, and the arc shape from the meshing position between the other rack gear 411b and the other pinion gear 412b. Is the same or substantially the same as the distance to the center of curvature CP2 of the orbit DRb.

  In the present embodiment, the drive transmission mechanism 413 includes a first rotating body 413a (see FIG. 5) that rotates by receiving the drive of the motor 410, and a second rotating body 413b (see FIG. 5) that is concentrically connected to one of the pinion gears 412a. 6), a third rotating body 413c having the same diameter as the second rotating body 413b, and a third rotating body 413c (see FIG. 7) concentrically connected to the other pinion gear 412b; 413a, an endless annular body 413d bridged over the second rotating body 413b, and the third rotating body 413c, which transmits the rotation of the first rotating body 413a to the second rotating body 413b and the third rotating body 413c. And a body 413d.

  In the present embodiment, the first rotating body 413a, the second rotating body 413b, and the third rotating body 413c are toothed pulleys, and the endless annular body 413d is a toothed belt. In the present embodiment, the second rotating body 413b and the third rotating body 413c are set to have the same diameter.

  In the present embodiment, the reduction ratio of the second rotator 413b and the third rotator 413c with respect to the first rotator 413a, the distance from the trajectories DRa, DRb to the center of curvature CP1 of the trajectories DRa, DRb, and the rack gears 411a, 411b. The ratio of the distance from the meshing position with the pinion gears 412a, 412b to the centers of curvature CP1, CP2 of the tracks DRa, DRb is the same or substantially the same.

  One rack gear 411a and one door panel 40a are connected to one arm body 414a, and the other rack gear 411b and the other door panel 40b are connected to the other arm body 414b (see FIG. 3).

  In the present embodiment, the pair of arm bodies 414a and 414b movably support the pair of door panels 40a and 40b, respectively, on the arc-shaped orbits DRa and DRb. Specifically, each of the pair of arm bodies 414a and 414b has a first end and a second end opposite to the first end, and is rotatable around the first end. Is provided. The respective rotation centers of the pair of arm bodies 414a and 414b are concentric, and are also concentric with the centers of curvature CP1 and CP2 of the orbits DRa and DRb. In the present embodiment, one end of each of the pair of arm bodies 414a and 414b is a common axis (not numbered) fixed to the base 415, and is concentric with the centers of curvature CP1 and CP2 of the tracks DRa and DRb. It is rotatably mounted on a shaft. The second end of each of the pair of arm bodies 414a, 414b is connected to the corresponding door panel 40a, 40b.

  In the present embodiment, each of the pair of arm bodies 414a and 414b has a corresponding rack gear 411a and 411b connected to a predetermined position between the first end and the second end.

  As shown in FIG. 8, the door panel restricting device 42 includes a rotating cam 420 having a cam surface 421 on the outer periphery, a contact member 422 provided to be able to contact the cam surface 421 of the rotating cam 420, and a contact member 422. And an elastic body 423 pressed against the surface 421. In the present embodiment, the door panel regulating device 42 includes a support mechanism 424 that supports the contact body 422 so as to be movable in the radial direction of the rotary cam 420.

  In the present embodiment, the rotary cam 420 is connected to the other pinion gear 412b. The cam surface 421 of the rotating cam 420 is an arc surface 421a having a constant radius of curvature from the rotation center of the rotating cam 420, and a first regulating surface 421b adjacent to one end of the arc surface 421a in the circumferential direction, A first regulating surface 421b whose distance from the rotation center of the rotary cam 420 is shorter than a radius of curvature of the arc surface 421a, and a second regulating surface 421c adjacent to the other end of the arc surface 421a in the circumferential direction, A second regulating surface 421c whose distance from the rotation center of the rotating cam 420 is shorter than the radius of curvature of the arc surface 421a.

  The center of curvature of the arc surface 421 a coincides with the rotation center of the other pinion gear 412. The range in which the arc surface 421a is formed (the circumferential length from one end to the other end in the circumferential direction) is set to be less than the rotation range in which the pinion gear 412b rotates when the door panels 40a and 40b open and close the entrance 300. That is, the angle range (the angle range based on the center of the rotary cam 420) θ formed by the arc surface 421a is determined when the door panels 40a, 40b move from the fully closed position P1 to the fully open position P2, and when the door panels 40a, The rotation angle of the pinion gear 412b when the pin 40b moves from the fully open position P2 to the fully closed position P1 is set to be smaller than the rotation angle.

  In the present embodiment, each of the first restriction surface 421b and the second restriction surface 421c is configured by a plane. Specifically, in the present embodiment, the cam surface 421 of the rotary cam 420 includes a flat surface 421d connecting both ends of the circular arc surface 421a in the circumferential direction, and is adjacent to one circumferential end of the circular arc surface 421a in the flat surface 421d. A region that matches is defined as a first restriction surface 421b, and a region adjacent to the other end in the circumferential direction of the arc surface 421a on the plane 421d is defined as a second restriction surface 421c.

  In the present embodiment, the contact body 422 is formed in a disk shape or a column shape, and has a center line located in the same direction as the direction in which the rotation center of the rotating cam 420 extends. In the present embodiment, the contact body 422 is constituted by a cam follower, and is rotatable around its own center.

  A compression coil spring is used for the elastic body 423. In the present embodiment, the elastic body 423 (coil spring) 423 is compressed by the support mechanism 424 having the following structure, and biases the contact body 422 toward the cam surface 421 of the rotary cam 420. I do.

  The support mechanism 424 includes a support bracket 424a fixed to the base 415, and a lever 424b rotatably attached to the support bracket 424a. In the present embodiment, the support mechanism 424 further includes a transmission member 424c that transmits the elastic force (biasing force) of the elastic body 423 to the lever 424b.

  The lever 424b extends in one direction and has a first end in the one direction and a second end opposite to the first end. An intermediate position between the first end and the second end of the lever 424b is rotatably attached to the support bracket 424a around an axis extending in the same direction as the rotation center of the contact body 422.

  A contact body (cam follower) 422 is attached to the first end of the lever 424b. On the other hand, a transmission member 424c is connected to the second end of the lever 424b.

  The transmission member 424c is a shaft body extending in one direction, and has a first end in one direction and a second end opposite to the first end. The transmission member 424c is movably inserted through a protruding piece (not numbered) provided on the support bracket 424a in a direction orthogonal to the rotation center of the lever 424b. A first end of the transmission member 424c is connected to a second end of the lever 424b. On the other hand, the second end of the transmission member 424c is locked to the other end of the elastic body 423 in a state where the second end of the transmission member 424c is inserted through the elastic body 423 whose one end is in contact with the projecting piece of the support bracket 424a.

  Accordingly, the transmission member 424c compresses the elastic body 423 by being pulled by the lever 424b in a state where the lever 424b is rotated by the contact between the contact body 422 and the cam surface 421 of the rotary cam 420. That is, the transmission member 424c causes the restoring force of the compressed elastic body 423 to act as a force for rotating the lever 424b in a direction in which the contact body 422 contacts the rotary cam 420.

  The door device 4 according to the present embodiment is as described above. The forward and reverse rotation of the motor 410 causes the pair of door panels 40a and 40b to approach and separate, and opens and closes the entrance 300.

  This will be specifically described. First, the operation when the entrance 300 is opened (when the door panels 40a and 40b at the fully closed position P1 move to the fully open position P2) will be described. When the door panels 40a and 40b are in the fully closed position P1 (see FIG. 3), the contact body 422 of the door panel regulating device 42 is in pressure contact with the first regulating surface 421b of the cam surface 421 of the rotating cam 420. . In this state, when the output shaft of the motor 410 rotates forward, the rotation torque of the output shaft of the motor 410 is transmitted to the second rotating body 413b and the third rotating body 413c via the first rotating body 413a and the endless annular body 413d. Is done.

  Then, the rotation torque is also transmitted to the rotation cam 420 via the other pinion gear 412b connected to the third rotating body 413c. Then, as the rotational torque acting on the rotary cam 420 increases, a corner formed at the boundary between the arc surface 421a and the first regulating surface 421b of the cam surface 421 of the rotary cam 420 pushes the contact body 422 further, and The contact body 422 that was on the regulating surface 421b moves to the arc surface 421a. In the present embodiment, since a part of the flat surface 421b on the outer periphery of the rotating cam 420 is the first regulating surface 421b, the rotating torque acting on the rotating cam 420 increases as described above, and the rotating cam 420 The abutment body 422 is pushed away by the first regulating surface 421b that changes its posture at the start of rotation until the abutment body 422 gets over the corner, and finally the abutment body 422 moves onto the circular arc surface 421a.

  In this state, the contact body 422 and the rotary cam 420 can smoothly move relative to each other. Accordingly, the first rotating body 413a connected to the output shaft of the motor 410 rotates in the same direction, and the second rotating body 413b and the third rotating body 413c also rotate in the same direction as the first rotating body 413a. At the same time, as shown in FIG. 9, the contact body 422 moves while rotating on the circular arc surface 421a along the circular arc surface 421a having a constant radius of curvature and no obstacle.

  Then, one pinion gear 412a connected to the second rotating body 413b and the other pinion gear 412b connected to the third rotating body 413c also rotate in the same direction. Along with this, one rack gear 411a meshing with one pinion gear 412a moves so as to follow the reference line BL1 of its own plurality of teeth, and the other rack gear 411b meshing with the other pinion gear 412b has its own plurality of gears. Is moved so as to follow the reference line BL2 of the tooth.

  As described above, the second rotating body 413b and the third rotating body 413c rotate in the same direction, but the plurality of teeth of the one rack gear 411a meshing with the one pinion gear 412a are formed on the outer periphery of the arc gear. Since the plurality of teeth of the other rack gear 411b that are on the side (outward) and mesh with the other pinion gear 412b are on the inner peripheral side (inward) of the arc gear-shaped rack gear 411b, a pair of rack gears 411a, 411a, 411b moves in opposite directions.

  Then, the pair of arm bodies 414a and 414b to which the rack gears 411a and 411b are connected rotate in opposite directions about a common fulcrum (support shaft) so as to correspond to the movement of the corresponding rack gears 411a and 411b. Thereby, the door panels 40a and 40b connected to the arm bodies 414a and 414b move on the arc-shaped orbits DRa and DRb. That is, the pair of door panels 40a and 40b move in opposite directions on the arc-shaped orbits DRa and DRb.

  Immediately before each of the pair of door panels 40a and 40b reaches the fully open position P2, the contact body 422 has a corner formed at the boundary between the arc surface 421a and the second regulating surface 421c of the cam surface 421 of the rotating cam 420. When the pair of door panels 40a and 40b has reached the fully open position P2 after passing through the position where the contact member 422 is located, the contact body 422 is located on the second regulating surface 421c as shown in FIG. In this state, the pair of door panels 40a and 40b, which have closed the entrance 300, open the entrance 300 (not shown).

  Then, when the motor 410 is stopped, the rotation of the rotary cam 420 is restricted by pressing the contact body 422 against the second restricting surface 421c of the rotary cam 420. Further, in this state, since the rotating torque from the motor 410 is not transmitted, even if the rotating cam 420 tries to reverse, the corner between the arc surface 421a and the second regulating surface 421c becomes an obstacle, and the rotating cam 420 Rotation is restricted. Thus, rotation of the pinion gear 412b connected to the rotating cam 420 is restricted (locked).

  Therefore, even if the door panel 40b at the fully open position P2 attempts to move toward the fully closed position P1, the door panel 40b is prevented. In the present embodiment, the other pinion gear 412b to which the rotating cam 420 is connected is also connected to the third rotating body 413c. Therefore, the rotation of the second rotating body 413b and the first rotating body 413a (the output shaft of the motor 410) is also restricted via the endless annular body 413d. Therefore, even if one door panel 40a attempts to move from the fully open position P2 to the fully closed position P1, the movement is prevented.

  In the present embodiment, as described above, the centers of curvature CP5 and CP6 of the reference lines BL1 and BL2 of the pair of rack gears 411a and 411b coincide or substantially coincide with the centers of curvature CP1 and CP2 of the arc-shaped orbits DRa and DRb. The curvature radii Rc and Rd of the reference lines BL1 and BL2 of the pair of rack gears 411a and 411b are the same (the same).

  Accordingly, the angular velocities when the pair of rack gears 411a and 411b move become the same. Accordingly, the angular velocity of the pair of door panels 40a, 40b following the pair of rack gears 411a, 411b becomes the same, and the start timing of the pair of door panels 40a, 40b (starts moving from the fully closed position P1 toward the fully open position P2). Timing) and the stop timing (timing to reach the fully open position P2) are the same.

  Next, the operation when closing the entrance 300 (when the door panels 40a and 40b at the fully open position P2 move to the fully closed position P1) will be described. When the door panels 40a and 40b are in the fully open position P2, the contact body 422 of the door panel regulating device 42 is in pressure contact with the second regulating surface 421c of the cam surface 421 of the rotating cam 420 as described above. In this state, when the output shaft of the motor 410 rotates in the reverse direction, the rotation torque of the output shaft of the motor 410 is transmitted to the second rotating body 413b and the third rotating body 413c via the first rotating body 413a and the endless annular body 413d. You.

  Then, the rotation torque is also transmitted to the rotation cam 420 via the other pinion gear 412b connected to the third rotating body 413c. Then, as the rotational torque acting on the rotating cam 420 increases, a corner formed on the cam surface 421 of the rotating cam 420 at the boundary between the arc surface 421a and the second regulating surface 421c pushes the contact body 422 further, and The contact body 422 that was on the regulating surface 421c moves to the arc surface 421a. In the present embodiment, since a part of the flat surface 421b on the outer periphery of the rotating cam 420 is used as the second regulating surface 421c, the rotating torque acting on the rotating cam 420 increases as described above, and the rotating cam 420 The abutment body 422 is pushed away by the second regulating surface 421c that changes its posture at the start of rotation until it gets over the corner, and finally the abutment body 422 moves onto the circular arc surface 421a.

  In this state, the contact body 422 and the rotary cam 420 can smoothly move relative to each other. Accordingly, the first rotating body 413a connected to the output shaft of the motor 410 rotates in the same direction, and the second rotating body 413b and the third rotating body 413c also rotate in the same direction as the first rotating body 413a. At the same time, as shown in FIG. 9, the contact body 422 moves while rotating on the circular arc surface 421a along the circular arc surface 421a having a constant radius of curvature and no obstacle.

  Then, one pinion gear 412a connected to the second rotating body 413b and the other pinion gear 412b connected to the third rotating body 413c also rotate in the same direction. Along with this, one rack gear 411a meshing with one pinion gear 412a moves so as to follow the reference line BL1 of its own plurality of teeth, and the other rack gear 411b meshing with the other pinion gear 412b has its own plurality of gears. Is moved so as to follow the reference line BL2 of the tooth.

  As described above, the second rotating body 413b and the third rotating body 413c rotate in the same direction, but the plurality of teeth of the one rack gear 411a meshing with the one pinion gear 412a are formed on the outer periphery of the arc gear. Since the plurality of teeth of the other rack gear 411b that are on the side (outward) and mesh with the other pinion gear 412b are on the inner peripheral side (inward) of the arc gear-shaped rack gear 411b, a pair of rack gears 411a, 411a, 411b moves in opposite directions.

  Then, the pair of arm bodies 414a and 414b to which the rack gears 411a and 411b are connected rotate in opposite directions about a common fulcrum (support shaft) so as to correspond to the movement of the corresponding rack gears 411a and 411b. Thereby, the door panels 40a and 40b connected to the arm bodies 414a and 414b move on the arc-shaped orbits DRa and DRb. That is, the pair of door panels 40a and 40b move in opposite directions on the arc-shaped orbits DRa and DRb.

  Immediately before each of the pair of door panels 40a and 40b reaches the fully closed position P1, a corner formed at the boundary between the arc surface 421a of the cam surface 421 of the rotating cam 420 and the first regulating surface 421b is formed by the contact body 422. In a state where the pair of door panels 40a and 40b has reached the fully closed position P1 after passing through the existing position, the contact body 422 is located on the first regulating surface 421b as shown in FIG. In this state, the pair of door panels 40a and 40b that have opened the entrance 300 closes the entrance 300.

  Then, when the motor 410 is stopped, the rotation of the rotary cam 420 is restricted by pressing the contact body 422 against the first restricting surface 421b of the rotary cam 420. Further, in this state, since the rotating torque from the motor 410 is not transmitted, even if the rotating cam 420 attempts to rotate forward, the corner between the arc surface 421a and the first regulating surface 421b becomes an obstacle, and the rotating cam 420 Is restricted from rotating. Thus, rotation of the pinion gear 412b connected to the rotating cam 420 is restricted (locked).

  Therefore, even if the door panel 40b at the fully closed position P1 attempts to move toward the fully open position P2, it is prevented. In the present embodiment, the other pinion gear 412b to which the rotating cam 420 is connected is also connected to the third rotating body 413c. Therefore, the rotation of the second rotating body 413b and the first rotating body 413a (the output shaft of the motor 410) is also restricted via the endless annular body 413d. Therefore, even if one door panel 40a attempts to move from the fully closed position P1 to the fully opened position P2, the movement is prevented.

  In the present embodiment, as described above, the centers of curvature CP5 and CP6 of the reference lines BL1 and BL2 of the pair of rack gears 411a and 411b coincide or substantially coincide with the centers of curvature CP1 and CP2 of the arc-shaped orbits DRa and DRb. The curvature radii Rc and Rd of the reference lines BL1 and BL2 of the pair of rack gears 411a and 411b are the same (the same).

  Accordingly, the angular velocities when the pair of rack gears 411a and 411b move become the same. Accordingly, the angular velocity of the pair of door panels 40a, 40b following the pair of rack gears 411a, 411b becomes the same, and the start timing of the pair of door panels 40a, 40b when closing the entrance 300 (from the fully open position P2 to the fully closed position). The timing to start moving toward P1) and the stop timing (timing to reach the fully closed position P1) are the same.

  As shown in FIG. 1, the floor F has an entrance 60 for a user to get on and off the stopped car 2, and the entrance 60 is also provided with a pair of door panels 600a and 600b. The pair of door panels 600a and 600b on this level F engage with the pair of door panels 40a and 40b of the stopped car 2 and follow the pair of door panels 40a and 40b of the car 2 operating in the above-described manner.

  Therefore, when the pair of door panels 600a and 600b in the story F opens and closes the entrance 60, the start timing and the stop timing of the pair of door panels 600a and 600b in the story F become the same.

  As described above, the car door device 4 according to the present embodiment is a door panel 40b movably provided on the track DRb, and is provided with all the entrances and exits 300 provided on the car body 3 that accommodates a user. A door panel 40b reciprocally movable between a fully closed position P1 for closing and a fully open position P2 for fully opening the entrance 300, and opening and closing for moving the door panel 40b between the fully closed position P1 and the fully open position P2. The opening and closing device 41 includes a device 41 and a door panel regulating device 42 that regulates the movement of the door panel 40b in a state where the door panel 40b is in the fully open position P2 and the fully closed position P1. A rack gear 411b extending in the same direction as the track DRb, which is directly or indirectly connected to the door panel 40b; A pinion gear 412b that meshes with the pinion 411b, and a pinion gear 412b that rotates when driven by the motor 410. The pinion gear 412b is used when the door panel 40b moves from the fully closed position P1 to the fully open position P2 and at the fully open position. The door panel restricting device 42 is a rotating cam 420 concentrically connected to the pinion gear 412b when rotating from P2 to the fully closed position P1 by one rotation or less. 421, a rotating body 420, a contact body 422 provided to be able to contact the cam surface 421 of the rotating cam 420, and an elastic body 423 for pressing the contact body 422 against the cam surface 421. An arc surface 421a having a constant radius of curvature from the rotation center of the rotary cam 420 is adjacent to one end of the arc surface 421a in the circumferential direction. The first regulating surface 421b, the distance from the rotation center of the rotary cam 420 being shorter than the radius of curvature of the arc surface 421a, is adjacent to the other end of the arc surface 421a in the circumferential direction. A second regulating surface 421c that is fitted to the rotating cam 420 and has a distance from the rotation center shorter than the radius of curvature of the arc surface 421a. The angle between the imaginary line connecting one end of the surface 421a and the imaginary line connecting the rotation center of the rotary cam 420 and the other end of the circular arc surface 421a in the circumferential direction moves the door panel 40b from the fully closed position P1 to the fully open position P2. The rotation angle of the pinion gear 412b is set to be smaller than the rotation angle of the pinion gear 412b when the pinion gear 412b moves from the fully open position P2 to the fully closed position P1.

  According to the above configuration, the contact body 422 is pressed against the cam surface 421 of the rotating cam 420 by the urging force of the elastic body 423. Since the distance from the rotation center to the first regulating surface 421b is shorter than the radius of curvature of the arc surface 421a, a corner is formed between the arc surface 421a and the first regulating surface 421b. Since the distance from the rotation center to the second restriction surface 421c is shorter than the radius of curvature of the arc surface 421a, a corner is also formed between the arc surface 421a and the second restriction surface 421c.

  Accordingly, even if the rotating cam 420 attempts to rotate in one direction, the rotating body 420 gets over the corner between the arc surface 421a and the first regulating surface 421b in a state where the contact body 422 is located on the first regulating surface 421b. The rotation of the rotary cam 420 is restricted as long as no rotational torque is generated.

  Accordingly, even when the door panel 40b is moving toward the fully open position P2 and the rack gear 411b is moving while the door panel 40b is in the fully closed position P1, the pinion gear 412b meshing with the rack gear 411b is connected. Rotation is restricted similarly to the rotation cam 420. Therefore, the door panel 40b at the fully closed position P1 is prevented from being accidentally moved toward the fully opened position P2.

  When a large rotational torque is applied to the pinion gear 412b by driving the motor 410, the contact body 422 is pushed away by the corner between the arc surface 421a and the first regulating surface 421b (over the corner), and the arc is formed. Move to surface 421a.

  Since the radius of curvature of the arc surface 421a is constant, the contact body 422 moves smoothly on the arc surface 421a, and the rotary cam 420 and the pinion gear 412b rotate smoothly. Accompanying this, the door panel 40b also moves along with the movement of the rack gear 411b.

  The pinion gear 412b is set so as to rotate by one rotation or less when the door panel 40b moves from the fully closed position P1 to the fully open position P2 or from the fully open position P2 to the fully closed position P1. The angle between the imaginary line connecting the center of rotation and one end of the circular arc surface 421a in the circumferential direction and the imaginary line connecting the center of rotation of the rotary cam 420 and the other end of the circular arc surface 421a in the circumferential direction is such that the door panel 40b is fully closed. Since the rotation angle of the pinion gear 412b when moving from the position P1 to the fully open position P2 or when moving from the fully open position P2 to the fully closed position P1 is less than (preferably immediately before) the door panel 40b reaches the fully open position P2. In addition, the contact body 422 passes through the position where the corner between the arc surface 421a and the second regulating surface 421c exists, and the second regulating surface 42 Move to c.

  In this state, even if the rotating cam 420 attempts to rotate in the other direction, unless the rotating torque that can cause the abutting member 422 to climb over the corner between the arc surface 421a and the second regulating surface 421c is generated, The rotation of 420 is regulated.

  Accordingly, even when the door panel 40b is moving toward the fully closed position P1 and the rack gear 411b is moving while the door panel 40b is in the fully open position P2, the pinion gear 412b meshing with the rack gear 411b is connected. Rotation is restricted similarly to the rotation cam 420. Therefore, the door panel 40b at the fully open position P2 is prevented from being accidentally moved toward the fully closed position P1.

  Then, when closing the entrance 300, when a large rotational torque is applied to the pinion gear 412b by the drive of the motor 410, the contact body 422 is pushed away by the corner between the arc surface 421a and the second regulating surface 421c ( Cross over the corner) and move to the arc surface 421a.

  Since the radius of curvature of the arc surface 421a is constant, the contact body 422 moves smoothly on the arc surface 421a, and the rotary cam 420 and the pinion gear 412b rotate smoothly. Accompanying this, the door panel 40b also moves along with the movement of the rack gear 411b.

  The pinion gear 412b is set so as to rotate by one rotation or less when the door panel 40b moves from the fully closed position P1 to the fully open position P2 or from the fully open position P2 to the fully closed position P1. The angle between the imaginary line connecting the center of the rotary cam 420 to one end of the arc surface 421a in the circumferential direction and the imaginary line connecting the center of the rotary cam 420 to the other end of the arc surface 421a in the circumferential direction is determined by the door panel 40b in the fully closed position P1. Before the door panel 40b reaches the fully closed position P1 (preferably immediately before) since the rotation angle of the pinion gear 412b when moving from the fully open position P2 to the fully open position P2 or when moving from the fully open position P2 to the fully closed position P1. The contact body 422 passes through a position where the corner between the arc surface 421a and the first regulating surface 421b is present, and the first regulating surface 421b Move.

  In this state, even if the rotating cam 420 attempts to rotate in one direction, as described above, no rotating torque is generated so that the contact body 422 can get over the corner between the arc surface 421a and the second regulating surface 421c. As long as the rotation of the rotary cam 420 is restricted, the door panel 40b at the fully closed position P1 is prevented from being inadvertently moved toward the fully opened position P2.

  In the car door device 4 according to the present embodiment, since the contact body 422 is a cam follower that is rotatable around an axis extending in the same direction as the direction in which the rotation center of the rotating cam 420 extends, when the rotating cam 420 rotates. The contact body 422 smoothly rotates on the cam surface 421. Therefore, the contact body 422 does not add unnecessary resistance to the cam surface 421, and smooth operation is possible.

  In the car door device 4 according to the present embodiment, since the door panel regulating device 42 includes the support mechanism 424 that supports the contact member 422 so as to be movable in the radial direction of the rotary cam 420, the contact member 422 is unspecified. The rotation of the rotating cam 420 at the position where the contact body 422 comes into contact with the cam surface 421 is smoothly controlled.

  In particular, in the present embodiment, the support mechanism 424 is a lever 424b that extends in one direction and has a first end in the one direction and a second end opposite to the first end, An intermediate position between the first end and the second end includes a lever 424b that is rotatable around an axis extending in the same direction as the rotation center of the contact body 422, and the contact body 422 is a first of the lever 424b. Since the elastic body 423 is attached to the end and urges the second end of the lever 424b, the contact body 422 can be reliably supported while the movement of the contact body 422 is stabilized.

  In the car door device 4 according to the present embodiment, the cam surface 421 of the rotating cam 420 includes a plane 421d connecting one end and the other end of the circular arc surface 421a in the circumferential direction, and one end of the circular arc surface 421a in the plane 421d. The adjacent region is the first regulating surface 421b, and the region adjacent to the other end of the arc surface 421a in the plane 421d is the second regulating surface 421c, so that the rotating cam 420 does not have a complicated structure. The above operations and effects can be obtained.

  It should be noted that the present invention is not limited to the above embodiment, and it is needless to say that modifications can be appropriately made without departing from the gist of the present invention.

  For example, in the above embodiment, the first rotating body 413a, the second rotating body 413b, and the third rotating body 413c are formed as toothed pulleys, and the endless annular body 413d is formed as a toothed belt, but the present invention is not limited to this. For example, even if the first rotating body 413a, the second rotating body 413b, and the third rotating body 413c are general pulleys, and the endless annular body 413d is a belt (a flat belt, a V belt, or the like) corresponding to the pulley. Good. Further, the first rotating body 413a, the second rotating body 413b, and the third rotating body 413c may be a sprocket, and the endless annular body 413d may be a chain corresponding to the sprocket.

  In the drive transmission mechanism 413 of the above-described embodiment, the rotation of the first rotating body 413a (motor 410) is controlled by the endless annular body 413d bridged over the first rotating body 413a, the second rotating body 413b, and the third rotating body 413c. Although transmitted to the two rotating bodies 413b and the third rotating body 413c, it is not limited to this. For example, in the drive transmission mechanism 413, each of the first rotator 413a, the second rotator 413b, and the third rotator 413c is a gear, and the rotation of the first rotator 413a is converted to a second rotation through another gear. The rotation of the first rotating body 413a may be transmitted to the third rotating body 413c via another gear while transmitting the rotation to the body 413b. That is, the drive transmission mechanism 413 includes a gear provided between the first rotating body 413a (gear) and the second rotating body 413b (gear), and a first rotating body 413a (gear) and the third rotating body 413c. (Gear).

  In the above embodiment, each of the pair of door panels 40a and 40b is formed in an arc shape when viewed from above and below, but is not limited to this. For example, each of the pair of door panels 40a and 40b may be formed in a linear shape (a flat plate shape in a front view) when viewed from above and below. However, the orbits DRa and DRb on which the pair of door panels 40a and 40b move are, of course, arc-shaped.

  In the above embodiment, one ends of the arms 414a and 414b connecting the rack gears 411a and 411b and the door panels 40a and 40b coincide with the centers of curvature CP1 and CP2 of the tracks DRa and DRb of the door panels 40a and 40b. , 414b are provided so as to be rotatable about one end thereof, but the present invention is not limited to this. For example, if the door panels 40a, 40b move along the rails 33 provided on the tracks DRa, DRb, even if the rack gears 411a, 411b and the door panels 40a, 40b are simply connected via the connecting members. Good. However, it is assumed that the center of curvature CP4 of the arc gears 411a and 411b coincides with the centers of curvature CP1 and CP2 of the trajectories DRa and DRb of the door panels 40a and 40b.

  In the above embodiment, one rack gear 411a has a plurality of teeth meshing with the corresponding pinion gear 412a on the outer circumference, and the other rack gear 411b has a plurality of teeth meshing with the corresponding pinion gear 412b on the inner circumference. , But is not limited to this. For example, one rack gear 411a may have a plurality of teeth meshing with a corresponding pinion gear 412a on the inner circumference, and the other rack gear 411b may have a plurality of teeth meshing with a corresponding pinion gear 412b on the outer circumference. Further, each of the pair of rack gears 411a and 411b may have a plurality of teeth on the inner periphery, and each of the pair of rack gears 411a and 411b may have a plurality of teeth on the outer periphery.

  When the plurality of teeth of the pair of rack gears 411a and 411b face in the same direction inside and outside, the drive transmission mechanism 413 uses one of the pinion gears 412a to move the pair of rack gears 411a and 411b relatively in opposite directions. The drive of the motor 410 may be transmitted to the pair of pinion gears 412a and 412b such that the rotation direction of the pinion gear 412b is opposite to the rotation direction of the other pinion gear 412b.

  In the above embodiment, the entrance 300 is opened and closed by the pair of door panels 40a and 40b, but the invention is not limited to this. For example, the doorway 300 may be opened and closed with a single door panel 40b. In this case, rack gears and pinion gears may be provided according to the number of door panels.

  In the above embodiment, the door device 4 including the door panels 40a and 40b moving on the arc-shaped orbits DRa and DRb has been described, but the present invention is not limited to this. For example, the door device 4 may include door panels 40a and 40b that move on a straight track. In this case, the rotating cam 420 may be connected to a pinion gear that meshes with the rack gear that extends straight.

  In the above embodiment, the rotating cam 420 is connected to the pinion gear 412b connected to the rotating body (third rotating body) 413c to which the rotating torque of the motor 410 is transmitted via the endless annular body 413d, but is not limited thereto. . For example, when the pinion gear 412b is attached to the output shaft of the motor 410, the rotating cam 420 may be connected to the pinion gear 412b.

  In the above embodiment, the first regulating surface 421b and the second regulating surface 421c are set at different positions, but the present invention is not limited to this. For example, the first restriction surface 421b and the second restriction surface 421c may be set at the same position or at a position where a part thereof is overlapped. That is, the first regulating surface 421b may be used as all or a part of the second regulating surface 421c.

  Further, the first regulating surface 421b and the second regulating surface 421c may be concave surfaces. The first regulating surface 421b and the second regulating surface 421c may have different forms. That is, one of the first restriction surface 421b and the second restriction surface 421c may be a flat surface, and the other of the first restriction surface 421b and the second restriction surface 421c may be a concave surface.

  Further, the first regulating surface 421b and the second regulating surface 421c are not limited to those continuous (on a common surface). For example, the form between the first restriction surface 421b continuous with the arc surface 421a and the second restriction surface 421c continuous with the arc surface 421a can be variously changed. That is, when the first regulating surface 421b and the second regulating surface 421c are set at an interval, the contact body does not contact between the first regulating surface 421b and the second regulating surface 421c. Any of a concave surface and a convex surface may be used.

  In the above embodiment, the contact body 422 is formed of a cam follower rotatable around its own center, but is not limited to this. The contact body 422 may not be able to rotate as long as the contact resistance of the rotating cam 420 to the cam surface 421 is small.

  In the above embodiment, the elastic body 423 is not limited to a coil spring. For example, a member having elasticity such as rubber may be used.

  In the above embodiment, the support mechanism 424 includes the rotatable lever 424b, and the contact body 422 can be moved in an arc shape with the rotation of the lever 424b. However, the present invention is not limited to this. The support mechanism 424 may support the contact body 422 so as to be able to linearly move. In this case, the elastic body 423 may be in a compressed state, and the contact body 422 may be urged toward the cam surface 421 of the rotary cam 420 by the reaction force.

  In the above embodiment, the opening / closing device 41 is supported by the ceiling 31 of the car body 3, but is not limited thereto. For example, the opening / closing device 41 may be supported by the floor 32 of the car body 3.

  DESCRIPTION OF SYMBOLS 1 ... elevator, 2 ... car, 3 ... car main body, 4 ... door apparatus (car door apparatus), 30 ... peripheral wall part, 31 ... ceiling part, 32 ... floor part, 33 ... rail, 40a, 40b ... door panel, 41 ... Opening / closing device, 42 ... Door panel regulating device, 60 ... Entrance, 300 ... Entrance, 410 ... Motor, 411a, 411b ... Rack gear, 412a, 412b ... Pinion gear, 413 ... Drive transmission mechanism, 413a ... First rotating body 413b: second rotating body, 413c: third rotating body, 413d: endless annular body, 414a, 414b: arm body, 415: base, 416: bracket, 420: rotating cam, 421: cam surface, 421a: arc surface, 421b: first regulating surface, 421c: second regulating surface, 421d: flat surface, 422: contact body, 423: elastic body, 424: support mechanism, 424a: support black G, 424b: Lever, 424c: Transmission member, 600a, 600b: Door panel, BL1, BL2: Reference line, CP1, CP2, CP3, CP4, CP5, CP6: Center of curvature, DRa, DRb: Track, F: Hierarchy, P1 ... Fully closed position, P2 ... Fully open position, R ... Hoistway, Ra, Rb, Rc, Rd ... Radius of curvature

Claims (5)

  A door panel movably provided on a track, which is capable of reciprocating between a fully closed position at which a door provided on a car body accommodating a user is fully closed and a fully opened position at which the door is fully opened. , A door panel provided between the door panel, an opening and closing device for moving the door panel between a fully closed position and a fully open position, and a door panel regulating device for restricting movement of the door panel in a state where the door panel is at the fully open position and the fully closed position. The opening and closing device is a single motor, a rack gear extending in the same direction as the track of the door panel, a rack gear directly or indirectly connected to the door panel, and a pinion gear meshing with the rack gear, A pinion gear that rotates when driven by a motor.The pinion gear moves when the door panel moves from the fully closed position to the fully open position and from the fully open position to the fully closed position. The door panel restricting device is a rotating cam concentrically connected to a pinion gear, the rotating cam having a cam surface on an outer periphery, and a cam surface of the rotating cam. A contact body provided so as to be able to abut on the cam surface, an elastic body for pressing the contact body against the cam surface, wherein the cam surface has an arc surface having a constant radius of curvature from the rotation center of the rotary cam; A first restricting surface adjacent at one end in the circumferential direction of the circular cam surface, the distance from the rotation center of the rotary cam is shorter than the radius of curvature of the circular arc surface, and the other circumferential end of the circular arc surface A second regulating surface adjacent on the side, the distance from the rotation center of the rotating cam includes a second regulating surface shorter than the radius of curvature of the arc surface, and the rotation center of the rotating cam and the arc surface in the circumferential direction An imaginary line connecting one end and the rotation center of the rotating cam and the circumferential direction The angle with the virtual line connecting the other end of the arc surface is set to be less than the rotation angle of the pinion gear when the door panel moves from the fully closed position to the fully open position or from the fully open position to the fully closed position. Door device for car basket.   The elevator car door device according to claim 1, wherein the contact member is a cam follower rotatable around an axis extending in the same direction as the direction in which the rotation center of the rotary cam extends.   3. The elevator car door device according to claim 1, wherein the door panel regulating device includes a support mechanism that supports the contact body so as to be movable in a radial direction of the rotary cam. 4.   The support mechanism is a lever extending in one direction and having a first end in the one direction and a second end opposite to the first end, the first end and the second end. A lever rotatable about an axis extending in the same direction as the rotation center of the abutment at an intermediate position between the abutment and the abutment is attached to the first end of the lever, and the elastic body is provided at the first end of the lever. The elevator car door device according to claim 3, wherein the two ends are biased.   The cam surface of the rotary cam includes a plane connecting one end and the other end of the circular arc surface in the circumferential direction, and a region adjacent to one end of the circular arc surface in the plane is defined as a first regulating surface. The elevator car door device according to any one of claims 1 to 4, wherein a region adjacent to the end is a second regulating surface.