Elevator car door device

Abstract

To provide a car door device for an elevator, which can suppress falling-off of a car door body from a car rail.SOLUTION: A latch-shaped member 37 is provided on a first panel backside 41a. A displacement mechanism 38 positions the latch-shaped member 37 in a deformation suppressing position when a first car door panel 41 is at a fully closed position. A regulation member 39 regulates displacement of the latch-shaped member 37 with respect to a second car door panel 43 perpendicular to the first panel backside 41a when the first car door panel 41 is at the fully closed position.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present disclosure relates to a car door device of an elevator.

Background Art

[0002] In a conventional elevator door device, a bolt is fixed to a door hanger. The bolt protrudes from the door hanger below the door rail. Further, when an external force is applied to the door panel, the bolt hits the lower part of the door rail and suppresses the inclination of the elevator door around the contact point between the hanger roller and the door rail (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In recent years, it has been required to reduce the thickness of the door panel to lighten the door panel. However, when the thickness of the door panel is reduced, the door panel may be greatly deformed into an arch shape due to an impact load in a direction perpendicular to the designed surface of the door panel. In such a case, in the conventional door device shown in Patent Document 1, the bolt may come off from the lower part of the door rail, and the elevator door may come off from the door rail.

[0005] The present disclosure has been made to solve the above problems, and an object thereof is to obtain an elevator car door device capable of suppressing the detachment of the car door body from the car door rail.

Means for Solving the Problems

[0006] The elevator car door device according to this disclosure has a first panel back surface which is the surface opposite to the surface facing the inside of the car, and includes a first car door panel for opening and closing the car entrance, an adjacent member adjacent to the door stop side end of the first car door panel when the first car door panel is in the fully closed position, a bolt-shaped member provided on the back surface of the first panel which is displaceable relative to the first car door panel between a deformation-suppressing position which straddles the first car door panel and the adjacent member and a standby position which is further from the adjacent member than the deformation-suppressing position, a displacement mechanism provided on the back surface of the first panel which positions the bolt-shaped member in the deformation-suppressing position when the first car door panel is in the fully closed position and displaces the bolt-shaped member to the standby position when the first car door panel moves away from the fully closed position, and a regulating member provided on the adjacent member which restricts the displacement of the bolt-shaped member relative to the adjacent member in a direction perpendicular to the back surface of the first panel when the first car door panel is in the fully closed position. [Effects of the Invention]

[0007] According to the elevator car door device of this disclosure, it is possible to prevent the car door body from coming off the car door rail. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic diagram showing an elevator according to Embodiment 1. [Figure 2] Figure 1 is a front view of the main part of the landing door device as seen from the hoistway side. [Figure 3] Figure 1 is a front view of the car door mechanism as seen from the landing side. [Figure 4] Figure 3 is a front view showing the fully open state of the cage door mechanism. [Figure 5] This is a front view showing an enlarged view of the main part of Figure 3. [Figure 6] This is a front view showing the bolt-shaped member in Figure 5 in its standby position. [Figure 7] Figure 6 is a front view showing the state in which the bolt-shaped member is in the process of returning to the deformation-suppressing position. [Figure 8]Figure 5 is a side view of the regulating member and the bolt-shaped member as seen along arrow VIII. [Figure 9] This is a front view of the elevator car door device according to Embodiment 2, as seen from the landing side. [Figure 10] Figure 9 is a front view showing the fully open state of the cage door mechanism. [Figure 11] This is a front view of the elevator car door device according to Embodiment 3, as seen from the landing side. [Figure 12] This is a front view of the elevator car door device according to Embodiment 4, as seen from the landing side. [Modes for carrying out the invention]

[0009] The embodiments will be described below with reference to the drawings. Embodiment 1. Figure 1 is a schematic diagram showing an elevator according to Embodiment 1. In the figure, a machine room 2 is provided above the hoistway 1. The machine room 2 houses a hoisting machine 3, a deflector wheel 4, and an elevator control device 5.

[0010] The hoisting machine 3 includes a drive sheave 6, a hoisting machine motor (not shown), and a hoisting machine brake (not shown). The hoisting machine motor rotates the drive sheave 6. The hoisting machine brake maintains the drive sheave 6 in a stationary state. The hoisting machine brake also brakes the rotation of the drive sheave 6.

[0011] A suspension system 7 is wrapped around the drive sheave 6 and the deflector wheel 4. The suspension system 7 is made up of multiple ropes or multiple belts. A cage 8 is connected to the first end of the suspension system 7. A counterweight 9 is connected to the second end of the suspension system 7.

[0012] The elevator car 8 and counterweight 9 are suspended by the suspension body 7 and move up and down within the hoistway 1 by rotating the drive sheave 6. The elevator control device 5 controls the operation of the elevator car 8 by controlling the hoisting machine 3.

[0013] Inside the hoistway 1, a pair of car guide rails (not shown) and a pair of counterweight guide rails (not shown) are installed. The pair of car guide rails guide the ascent and descent of the car 8. The pair of counterweight guide rails guide the ascent and descent of the counterweight 9.

[0014] The car 8 has a car frame 10 and a car chamber 11. The suspension body 7 is connected to the car frame 10. The car chamber 11 is supported by the car frame 10. A car door device 12 is provided on the front surface of the car chamber 11.

[0015] A door controller 13 is provided on the car 8. The door controller 13 controls the opening and closing operations of the car door device 12.

[0016] A landing door device 14 is provided at each landing of multiple floors. Each landing door device 14 operates in conjunction with the car door device 12 to open and close when the car 8 arrives at the landing.

[0017] Figure 2 is a front view of the main part of the landing door device 14 in FIG. 1 as seen from the hoistway 1 side. Each landing door device 14 has a landing door frame 15, a first landing door body 16, a second landing door body 17, a landing door interlocking mechanism 18, and an interlock device 19.

[0018] The landing door frame 15 is fixed above the landing entrance. A landing door rail 15a is provided on the landing door frame 15. The landing door rail 15a is arranged parallel and horizontally in the width direction of the landing entrance. The width direction of the landing entrance is a direction parallel to the opening and closing operation direction of the first landing door body 16 and the second landing door body 17, which is the left - right direction in FIG. 2.

[0019] The first landing door body 16 and the second landing door body 17 are suspended from the landing door rail 15a. Also, when the landing entrance is opened and closed, the first landing door body 16 and the second landing door body 17 are guided by the landing door rail 15a and move in opposite directions to each other.

[0020] Each of the first landing door body 16 and the second landing door body 17 has a landing door panel 20 and a landing door hanger 21. Each landing door panel 20 opens and closes the landing entrance. The landing door hanger 21 is fixed to the top of the landing door panel 20.

[0021] The landing door interlocking mechanism 18 includes a first landing pulley 22, a second landing pulley 23, an endless interlocking rope 24, a first landing door connecting fitting 25, and a second landing door connecting fitting 26.

[0022] The first landing pulley 22 and the second landing pulley 23 are installed on the landing door frame 15, spaced apart from each other in the width direction of the landing entrance. The interlocking rope 24 is wound around the first landing pulley 22 and the second landing pulley 23.

[0023] The first landing door body 16 is connected to the lower part of the interlocking rope 24 via the first landing door connecting fitting 25. The second landing door body 17 is connected to the upper part of the interlocking rope 24 via the second landing door connecting fitting 26.

[0024] When the interlocking rope 24 circulates due to the opening and closing operation of the first landing door body 16, the second landing door body 17 moves in the opposite direction to the first landing door body 16. In other words, the landing door interlocking mechanism 18 links the second landing door body 17 to the opening and closing operation of the first landing door body 16.

[0025] The interlock device 19 is installed between the landing door frame 15 and the first landing door body 16. The interlock device 19 also prevents the landing entrance from being opened from the landing side when the elevator car 8 is not at the bottom.

[0026] Furthermore, the interlock device 19 includes a latch 27, an interlock latch 28, a fixed-side interlock roller 29, and a movable-side interlock roller 30.

[0027] The latch 27 is fixed to the landing door frame 15. The interlock latch 28 is rotatably mounted on the landing door hanger 21 of the first landing door body 16. When the first landing door body 16 and the second landing door body 17 are in the fully closed position, the tip of the interlock latch 28 catches on the latch 27, preventing the first landing door body 16 and the second landing door body 17 from moving in the opening direction.

[0028] The fixed interlock roller 29 is positioned coaxially with the rotation axis of the interlock latch 28. The movable interlock roller 30 is attached to the interlock latch 28. This allows the movable interlock roller 30 to move along an arc centered on the rotation axis of the interlock latch 28.

[0029] Figure 3 is a front view of the elevator car door device 12 shown in Figure 1, as seen from the landing side. Figure 4 is a front view showing the elevator car door device 12 in the fully open state shown in Figure 3.

[0030] The car door device 12 includes a car door frame 31, a first car door body 32, a second car door body 33, a car door drive mechanism 34, a car-side connecting mechanism 35, a car sill 36, a bolt-shaped member 37, a displacement mechanism 38, and a regulating member 39.

[0031] The car door frame 31 is fixed to the car 8 above the car entrance 11a. The car door frame 31 is provided with a car door rail 31a. The car door rail 31a is parallel to the width direction of the car entrance 11a and is horizontal. The width direction of the car entrance 11a is parallel to the opening and closing direction of the first car door body 32 and the second car door body 33, and is the left-right direction in Figure 3.

[0032] The first car door body 32 and the second car door body 33 are suspended from the car door rail 31a. When the car entrance 11a is opened and closed, the first car door body 32 and the second car door body 33 are guided by the car door rail 31a and move in opposite directions from each other.

[0033] The first car door body 32 includes a first car door panel 41 and a first car door hanger 42. The first car door hanger 42 is fixed to the upper part of the first car door panel 41.

[0034] The second car door body 33 includes a second car door panel 43 and a second car door hanger 44. The second car door hanger 44 is fixed to the upper part of the second car door panel 43.

[0035] The first car door panel 41 and the second car door panel 43 open and close the car entrance 11a. The first car door panel 41 and the second car door panel 43 each have a decorative surface. The decorative surfaces of the first car door panel 41 and the second car door panel 43 are the surfaces facing into the car compartment 11.

[0036] The first car door panel 41 has a first panel back surface 41a. The first panel back surface 41a is the surface of the first car door panel 41 opposite to the design surface. Furthermore, when the car 8 lands, the first panel back surface 41a faces the landing door panel 20 of the first landing door body 16.

[0037] The second car door panel 43 has a second panel back surface 43a. The second panel back surface 43a is the surface opposite to the design surface of the second car door panel 43. Furthermore, when the car 8 lands, the second panel back surface 43a faces the landing door panel 20 of the second landing door body 17.

[0038] The car door drive mechanism 34 includes a door motor 45, a first car pulley 46, a second car pulley 47, an endless drive belt 48, a first car door connecting fitting 49, and a second car door connecting fitting 50.

[0039] The door motor 45 is fixed to the cage door frame 31. The first cage pulley 46 is attached to the rotating shaft of the door motor 45. The door motor 45 rotates the first cage pulley 46.

[0040] The second cage pulley 47 is provided on the cage door frame 31 at a distance from the first cage pulley 46 in the width direction of the cage entrance 11a. The drive belt 48 is wound around the first cage pulley 46 and the second cage pulley 47.

[0041] The first car door body 32 is connected to the lower part of the drive belt 48 via the first car door connecting fitting 49. The second car door body 33 is connected to the upper part of the drive belt 48 via the second car door connecting fitting 50.

[0042] When the first cage pulley 46 rotates, the drive belt 48 circulates, causing the first cage door body 32 and the second cage door body 33 to move in opposite directions.

[0043] The car-side coupling mechanism 35 includes a support plate 51, a door stop side blade 52, a door pocket side blade 53, an upper link 54, a lower link 55, a cam plate 56, a coupling rod 57, a cam roller 58, and a guide cam 59.

[0044] The support plate 51 is fixed to the back surface 41a of the first panel. The door stop side blade 52 is fixed to the support plate 51. The door stop side blade 52 is positioned on the door pocket side, i.e., on the opposite side from the second cage door panel 43. The door stop side blade 52 and the door pocket side blade 53 are positioned parallel to each other and along the vertical direction.

[0045] The pocket-side blade 53 is supported on the support plate 51 via an upper link 54 and a lower link 55. The upper link 54 is rotatably connected to both the support plate 51 and the pocket-side blade 53. The lower link 55 is rotatably connected to both the support plate 51 and the pocket-side blade 53.

[0046] The support plate 51, the pocket-side blade 53, the upper link 54, and the lower link 55 constitute a parallel link mechanism. This allows the pocket-side blade 53 to be displaced relative to the first car door panel 41 in a direction toward or toward the door stop-side blade 52.

[0047] When the first car door body 32 is opened, the movable interlock roller 30 and the fixed interlock roller 29 are sandwiched between the door pocket side blade 53 and the door stop side blade 52. That is, the car-side coupling mechanism 35 is connected to the interlock device 19. As a result, the interlock latch 28 rotates clockwise in Figure 2, and the interlock device 19 is unlocked.

[0048] The pocket-side end 55a of the lower link 55, which is the end opposite to the pocket-side blade 53, protrudes in the opposite direction from the pocket-side blade 53.

[0049] The middle section of the cam plate 56 is rotatably mounted on the upper part of the first cage door hanger 42. The connecting rod 57 is connected between the cam plate 56 and the lower link 55.

[0050] The lower end of the connecting rod 57 is rotatably connected to the door pocket side end 55a of the lower link 55. The upper end of the connecting rod 57 is rotatably connected to one end of the cam plate 56.

[0051] The cam roller 58 is rotatably mounted on the other end of the cam plate 56. The guide cam 59 is fixed to the car door frame 31. When the first car door body 32 is in the fully closed position, the cam roller 58 is in contact with the guide cam 59.

[0052] As the first car door body 32 moves from the state shown in Figure 3 to the left side of Figure 3, i.e., towards the door pocket side, the cam roller 58 separates from the guide cam 59. As a result, the upper link 54 and the lower link 55 rotate clockwise in Figure 3, and the door pocket side blade 53 is displaced toward the door stop side blade 52. The movable side interlock roller 30 and the fixed side interlock roller 29 are then sandwiched between the door stop side blade 52 and the door pocket side blade 53.

[0053] At this time, the lower link 55 pushes up the connecting rod 57, causing the cam plate 56 to rotate clockwise in Figure 3.

[0054] From the state shown in Figure 4, when the first car door body 32 moves to the right in Figure 4 and the cam roller 58 rides up onto the guide cam 59, the cam plate 56 rotates counterclockwise in Figure 4 and the connecting rod 57 is pushed down. As a result, the upper link 54 and the lower link 55 rotate counterclockwise in Figure 4 and the door pocket side blade 53 is displaced away from the door stop side blade 52.

[0055] The cage sill 36 is located at the bottom of the cage entrance 11a. The cage sill 36 also guides the lower end of the first cage door 32 and the lower end of the second cage door 33 when the first cage door 32 and the second cage door 33 are opened and closed.

[0056] The bolt-shaped member 37 is provided on the back surface 41a of the first panel. Furthermore, the bolt-shaped member 37 is displaceable in the width direction of the car entrance 11a relative to the first car door panel 41 between the deformation-suppressing position shown in Figure 3 and the standby position shown in Figure 4.

[0057] The deformation-suppressing position is a position that straddles the space between the first car door panel 41 and the adjacent member. The adjacent member is the member adjacent to the door stop side end of the first car door panel 41 when the first car door panel 41 is in the fully closed position. Therefore, the adjacent member in Embodiment 1 is the second car door panel 43.

[0058] When the bolt-shaped member 37 is in the deformation-suppressing position, it protrudes from the door stop side end of the first car door panel 41 toward the second car door panel 43.

[0059] The standby position is a position further away from the second car door panel 43 than the deformation suppression position. When the bolt-shaped member 37 is in the standby position, it does not protrude from the door stop side end of the first car door panel 41 toward the second car door panel 43. That is, when the bolt-shaped member 37 is in the standby position, the entire bolt-shaped member 37 overlaps with the first car door panel 41.

[0060] The displacement mechanism 38 is provided on the back surface 41a of the first panel. Furthermore, the displacement mechanism 38 is... When the first car door panel 41 is in the fully closed position, the bolt-shaped member 37 is positioned in a deformation-suppressing position. The displacement mechanism 38 also displaces the bolt-shaped member 37 to a standby position when the first car door panel 41 moves away from the fully closed position.

[0061] The restricting member 39 is provided on the back surface 43a of the second panel. The restricting member 39 also forms a space between itself and the back surface 43a of the second panel. When the bolt-shaped member 37 is in the deformation-suppressing position, it passes through the space between the back surface 43a of the second panel and the restricting member 39.

[0062] As a result, when the first car door panel 41 is in the fully closed position, the restricting member 39 restricts the displacement of the bolt-shaped member 37 relative to the second car door panel 43 in a direction perpendicular to the back surface 41a of the first panel.

[0063] Figure 5 is a front view showing an enlarged view of the main part of Figure 3. Figure 6 is a front view showing the bolt-shaped member 37 of Figure 5 in the standby position. Figure 7 is a front view showing the bolt-shaped member 37 of Figure 6 in the process of returning to the deformation suppression position. Figure 8 is a side view of the restricting member 39 and the bolt-shaped member 37 of Figure 5, viewed along arrow VIII.

[0064] The displacement mechanism 38 displaces the bolt-shaped member 37 in conjunction with the movement of the cage-side coupling mechanism 35. The displacement mechanism 38 also includes a first holding member 61, a second holding member 62, a return spring 63, an operating cam 64, an operating arm 65, and an operating roller 66 as a pressing member.

[0065] The first retaining member 61 and the second retaining member 62 are fixed to the back surface 41a of the first panel. The first retaining member 61 and the second retaining member 62 also hold the bolt-shaped member 37 so as to be slidable between a deformation-suppressing position and a standby position.

[0066] A spring receiving portion 37a is provided in the middle of the bolt-shaped member 37. The return spring 63 is provided between the second retaining member 62 and the spring receiving portion 37a. The return spring 63 also applies a force to the bolt-shaped member 37 that displaces it to the standby position.

[0067] The displacement of the bolt-shaped member 37 away from the second cage door panel 43 from its standby position is restricted by the first retaining member 61. In other words, the first retaining member 61 also functions as a stopper.

[0068] The operating cam 64 is fixed to the end of the bolt-shaped member 37 opposite to the second car door panel 43. Therefore, the operating cam 64 is displaced together with the bolt-shaped member 37 in the width direction of the car entrance 11a.

[0069] The actuating arm 65 is fixed to the rotation center of the lower link 55. Therefore, when the lower link 55 rotates, the actuating arm 65 rotates together with the lower link 55 around the rotation center of the lower link 55.

[0070] The operating roller 66 is rotatably mounted on the end of the operating arm 65 opposite to the lower link 55. That is, the operating roller 66 is connected to the cage-side coupling mechanism 35 via the operating arm 65.

[0071] The operating cam 64 is provided with a guide surface 64a. Just before the first car door panel 41 returns to the fully closed position, the operating roller 66 contacts the guide surface 64a.

[0072] The guide surface 64a is inclined so as it moves away from the second car door panel 43, gradually becoming lower. Furthermore, the guide surface 64a is curved so as to be convex diagonally downwards.

[0073] From the state shown in Figure 5, when the first cage door panel 41 moves in the opening direction, the lower link 55 rotates clockwise in Figure 5, and the operating roller 66 moves away from the operating cam 64. As a result, the bolt-shaped member 37 is pushed by the return spring 63 and moves to the standby position.

[0074] As the first car door panel 41 moves in the closing direction from the state shown in Figure 6, the lower link 55 rotates counterclockwise in Figure 6 just before the first car door panel 41 reaches the fully closed position, and the operating roller 66 contacts the guide surface 64a as shown in Figure 7.

[0075] Subsequently, as the lower link 55 rotates further counterclockwise in Figure 7, the operating cam 64 is pushed by the operating roller 66, causing the bolt-shaped member 37 to move toward the second car door panel 43 against the return spring 63. Then, when the first car door panel 41 returns to the fully closed position, the bolt-shaped member 37 is in the deformation-suppressing position. At this time, the return spring 63 is compressed.

[0076] In this manner, the operating roller 66, in conjunction with the movement of the car-side coupling mechanism 35 when the first car door panel 41 moves to the fully closed position, applies a force to the bolt-shaped member 37 that displaces it to a deformation-suppressing position against the return spring 63.

[0077] Furthermore, the operating roller 66 releases the force applied to the bolt-shaped member 37 in conjunction with the movement of the car-side coupling mechanism 35 when the first car door panel 41 moves away from the fully closed position.

[0078] In this type of car door device 12, a bolt-shaped member 37 is provided on the back surface 41a of the first panel. The displacement mechanism 38 positions the bolt-shaped member 37 in a deformation-suppressing position when the first car door panel 41 is in the fully closed position. The restricting member 39 restricts the displacement of the bolt-shaped member 37 relative to the second car door panel 43 in a direction perpendicular to the back surface 41a of the first panel when the first car door panel 41 is in the fully closed position.

[0079] Therefore, when the car entrance 11a is fully closed, if an impact load is applied to the design surface of the first car door panel 41, the load can be distributed to the second car door panel 43. Also, if an impact load is applied to the design surface of the second car door panel 43, the load can be distributed to the first car door panel 41.

[0080] This makes it possible to suppress deformation of the first car door panel 41 and the second car door panel 43 due to impact load, and to prevent the first car door body 32 and the second car door body 33 from coming off the car door rail 31a.

[0081] Furthermore, by suppressing deformation of the first car door panel 41 and the second car door panel 43, it is possible to make the first car door panel 41 and the second car door panel 43 thinner and lighter.

[0082] Furthermore, the displacement mechanism 38 displaces the bolt-shaped member 37 to a standby position when the first car door panel 41 moves away from the fully closed position. This makes the bolt-shaped member 37 less visible to the user, thus preventing a decrease in aesthetic appeal.

[0083] Furthermore, the restricting member 39 is provided on the back surface 43a of the second panel. Therefore, in the centrally opening car door device 12, deformation of the first car door panel 41 and the second car door panel 43 can be suppressed with a simple structure.

[0084] Furthermore, the displacement mechanism 38 displaces the bolt-shaped member 37 in conjunction with the movement of the car-side coupling mechanism 35. Therefore, the bolt-shaped member 37 can be displaced without adding a drive source, and the weight of the first car door body 32 can be suppressed.

[0085] Furthermore, an operating roller 66 is connected to the car-side coupling mechanism 35. The return spring 63 applies a force to the bolt-shaped member 37 that displaces it to the standby position. The operating roller 66, in conjunction with the movement of the car-side coupling mechanism 35 when the first car door panel 41 moves to the fully closed position, applies a force to the bolt-shaped member 37 that displaces it to the deformation-suppressing position against the return spring 63. The operating roller 66 also releases the force applied to the bolt-shaped member 37 in conjunction with the movement of the car-side coupling mechanism 35 when the first car door panel 41 moves away from the fully closed position.

[0086] Therefore, with a simple structure, the bolt-shaped member 37 can be displaced between the deformation-suppressing position and the standby position in conjunction with the movement of the cage-side connecting mechanism 35.

[0087] The pressing member is not limited to the operating roller 66.

[0088] Embodiment 2. Next, Figure 9 is a front view of the elevator car door device according to Embodiment 2, as seen from the landing side. Figure 10 is a front view showing the car door device of Figure 9 in the fully open state.

[0089] In Embodiment 2, the bolt-shaped member 71 is provided on a component constituting the cage-side connecting mechanism 35. Specifically, the bolt-shaped member 71 is provided on the lower link 55. The bolt-shaped member 71 is fixed to the lower link 55. Alternatively, the bolt-shaped member 71 and the lower link 55 may be configured as a single component.

[0090] The bolt-shaped member 71 has a V-shape, comprising a first straight section and a second straight section. The first straight section is the portion that protrudes diagonally downward from the lower link 55. The second straight section is the portion that protrudes diagonally upward from the lower end of the first straight section.

[0091] The restricting member 72 is fixed to the back surface 43a of the second panel. When the first car door panel 41 is in the fully closed position, the end of the bolt-shaped member 71 opposite to the lower link 55 is inserted into the space between the back surface 43a of the second panel and the restricting member 72.

[0092] As a result, when the first car door panel 41 is in the fully closed position, the restricting member 72 restricts the displacement of the bolt-shaped member 37 relative to the second car door panel 43 in a direction perpendicular to the back surface 41a of the first panel.

[0093] From the state shown in Figure 9, when the first cage door panel 41 moves in the opening direction, the lower link 55 and the bolt-shaped member 71 rotate clockwise in Figure 9, and the bolt-shaped member 71 is displaced to the standby position shown in Figure 10.

[0094] Furthermore, when the first car door panel 41 moves in the closing direction from the state shown in Figure 10, the lower link 55 and the bolt-shaped member 71 rotate counterclockwise in Figure 10 just before the first car door panel 41 reaches the fully closed position. As a result, the bolt-shaped member 71 returns to the deformation-suppressing position shown in Figure 9.

[0095] Thus, in Embodiment 2, the bolt-shaped member 71 is displaced by the car-side connecting mechanism 35. In other words, in Embodiment 2, the car-side connecting mechanism 35 also serves as the displacement mechanism.

[0096] Other configurations and operations in Embodiment 2 are the same as in Embodiment 1.

[0097] This configuration also suppresses deformation of the first car door panel 41 and the second car door panel 43 due to impact loads, and the same effects as in Embodiment 1 can be obtained. Furthermore, since the car-side connecting mechanism 35 also serves as a displacement mechanism, the number of parts can be reduced and the structure can be simplified.

[0098] Embodiment 3. Next, Figure 11 is a front view of the elevator car door device according to Embodiment 3, as seen from the landing side. In Embodiments 1 and 2, the car door device 12 is a center-opening type, but in Embodiment 3, the car door device 12 is a single-opening type.

[0099] The first car door body 32 and the second car door body 33 move in the same direction during opening and closing operations. However, the movement speed of the first car door body 32 is higher than that of the second car door body 33. Also, when the first car door body 32 and the second car door body 33 are in the fully open position, they overlap in the front-to-back direction of the car compartment 11.

[0100] The car door device 12 has a car door interlocking mechanism (not shown). The car door interlocking mechanism interlocks the opening and closing operation of the first car door body 32 with the second car door body 33.

[0101] A door stop post 40 is provided at the end of the car entrance 11a in the closing direction of the first car door panel 41, that is, the end opposite to the door pocket. The door stop post 40 is adjacent to the door stop side end of the first car door panel 41 when the first car door panel 41 is in the fully closed position. In other words, the adjacent member in Embodiment 3 is the door stop post 40.

[0102] The configuration of the bolt-shaped member 37 and the displacement mechanism 38 is the same as in Embodiment 1. The regulating member 39 is fixed to the landing-side end face of the door stop column 40. When the bolt-shaped member 37 is in the deformation-suppressing position, it straddles the space between the first car door panel 41 and the door stop column 40. Also, when the bolt-shaped member 37 is in the deformation-suppressing position, it passes through the space between the door stop column 40 and the regulating member 39.

[0103] As a result, the restricting member 39 restricts the displacement of the bolt-shaped member 37 relative to the door stop column 40 in a direction perpendicular to the back surface 41a of the first car door panel 41 when the first car door panel 41 is in the fully closed position.

[0104] Although not shown in the diagram, the configuration of the landing door device 14 at each landing is also designed to accommodate a single-leaf door.

[0105] This configuration also makes it possible to suppress deformation of the first car door panel 41 and the second car door panel 43 due to impact load, and to obtain the same effects as in Embodiment 1.

[0106] Embodiment 4. Next, Figure 12 is a front view of the elevator car door device according to Embodiment 4, as seen from the landing side. In Embodiment 4, the bolt-shaped member 37 and restricting member 39 in Embodiment 3 are replaced with bolt-shaped member 71 and restricting member 72, similar to those in Embodiment 2. Also, the displacement mechanism 38 in Embodiment 3 is omitted, and the car-side connecting mechanism 35 serves as the displacement mechanism.

[0107] Other configurations and operations in Embodiment 4 are the same as in Embodiment 3.

[0108] This configuration also suppresses deformation of the first car door panel 41 and the second car door panel 43 due to impact loads, and the same effects as in Embodiment 1 can be obtained. Furthermore, since the car-side connecting mechanism 35 also serves as a displacement mechanism, the number of parts can be reduced and the structure can be simplified.

[0109] The number of car door panels in the car door device 12 may be one or three or more.

[0110] Furthermore, the type of elevator is not limited to the type shown in Figure 1; for example, a 2:1 roping system may also be used.

[0111] Furthermore, the elevator may be a machine-room-less elevator, a double-deck elevator, or a single-shaft multi-car elevator. In a single-shaft multi-car elevator, the upper car and the lower car, located directly below the upper car, each move independently up and down a common hoistway. [Explanation of Symbols]

[0112] 11 Car compartment, 11a Car entrance / exit, 19 Interlock device, 35 Car-side connecting mechanism (displacement mechanism), 37, 71 Bolt-shaped member, 38 Displacement mechanism, 39, 72 Restricting member, 40 Door stop column (adjacent member), 41 First car door panel, 41a Rear of first panel, 43 Second car door panel (adjacent member), 43a Rear of second panel, 55 Lower link (part), 63 Return spring, 66 Operating roller (pressing member).

Claims

1. It has a first panel back that is the side opposite to the side facing the inside of the car, and a first car door panel that opens and closes the car entrance, When the first cage door panel is in the fully closed position, the adjacent member adjacent to the door stop side end of the first cage door panel, A bolt-shaped member provided on the back of the first panel, which is displaceable relative to the first car door panel between a deformation-suppressing position that straddles the first car door panel and the adjacent member and a standby position that is further away from the adjacent member than the deformation-suppressing position, A displacement mechanism provided on the back of the first panel, which positions the bolt-shaped member in the deformation-suppressing position when the first car door panel is in the fully closed position, and displaces the bolt-shaped member in the standby position when the first car door panel moves away from the fully closed position, A restricting member provided on the adjacent member, which restricts the displacement of the bolt-shaped member relative to the adjacent member in a direction perpendicular to the back surface of the first panel when the first car door panel is in the fully closed position, and A car-side coupling mechanism connected to an interlock device installed in the landing door system. Equipped with, The displacement mechanism is an elevator car door device that displaces the bolt-shaped member in conjunction with the movement of the car-side coupling mechanism.

2. The displacement mechanism is, The pressing member connected to the aforementioned cage-side connecting mechanism, A return spring applies a force to the bolt-shaped member that displaces the bolt-shaped member to the standby position. It has, The aforementioned pressing member is In conjunction with the movement of the car-side coupling mechanism when the first car door panel moves to the fully closed position, a force is applied to the bolt-shaped member that displaces the bolt-shaped member to the deformation-suppressing position against the return spring. The elevator car door device according to claim 1, wherein the force applied to the bolt-shaped member is released in conjunction with the movement of the car-side coupling mechanism when the first car door panel moves away from the fully closed position.

3. A first car door panel having a back surface that is opposite to the surface facing the inside of the car, which opens and closes the car entrance, When the first cage door panel is in the fully closed position, the adjacent member adjacent to the door stop side end of the first cage door panel, A bolt-shaped member provided on the back of the first panel, which is displaceable relative to the first car door panel between a deformation-suppressing position that straddles the first car door panel and the adjacent member and a standby position that is further away from the adjacent member than the deformation-suppressing position, A displacement mechanism provided on the back of the first panel, which positions the bolt-shaped member in the deformation-suppressing position when the first car door panel is in the fully closed position, and displaces the bolt-shaped member in the standby position when the first car door panel moves away from the fully closed position, A restricting member provided on the adjacent member, which restricts the displacement of the bolt-shaped member relative to the adjacent member in a direction perpendicular to the back surface of the first panel when the first car door panel is in the fully closed position, and A car-side coupling mechanism connected to an interlock device installed in the landing door system. Equipped with, The aforementioned cage-side coupling mechanism also serves as the displacement mechanism. The bolt-shaped member is an elevator car door device provided on a component constituting the car-side coupling mechanism.

4. The adjacent member is a second car door panel that opens and closes the car entrance, The second car door panel has a back surface which is the side opposite to the side facing the interior of the car. The elevator car door device according to any one of claims 1 to 3, wherein the regulating member is provided on the back of the second panel.

5. The elevator car door device according to any one of claims 1 to 3, wherein the adjacent member is a door stop column provided at the end of the car entrance in the closing direction of the first car door panel.

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