Cars and elevators

Abstract

The car side locking mechanism comprises a locking side hook member rotatably supported on the car side door (11A) and a fixed hook member disposed in the car chamber (10) and releasably engaged with the locking side hook member. A pair of car side doors (11A, 11B) have overlapping portions (311A, 311B) overlapping in a locked state locked by the car side locking mechanism. A locking gap is formed between the locking side hook member and the fixed hook member in the locked state. Furthermore, the length (L3) of the overlapping margin of the overlapping portion is longer than the length (L1) of the pair of car doors in the locking gap in the opening and closing direction.

Description

Technical Field

[0001] The present invention relates to a car provided with a car-side locking mechanism for unlockably locking a car-side door, and an elevator provided with the car. Background Art

[0002] In the past, a landing door disposed on the landing side of an elevator was provided with a landing side locking mechanism for locking and unlocking the opening and closing action. This can prevent passengers from falling into the elevator shaft. In addition, in recent years, a car provided with a car side locking mechanism for locking and unlocking the opening and closing action of the car side door has been proposed.

[0003] As a technology related to such a car-side locking mechanism, for example, there is described in Patent Document 1. Patent Document 1 describes a technology including a locking device for locking a car door in a closed position, a link mechanism having a link rotatably provided on the car door around a rotation axis, and a door stop side blade provided on the car door via the link mechanism. In addition, in the technology described in Patent Document 1, the door stop side blade as a car-side engaging member abuts against an interlocking roller, which is a landing-side engaging member, thereby unlocking the locking device.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: International Publication No. 2015 / 008386 Summary of the invention

[0007] Technical problem to be solved by the invention

[0008] However, in the car door lock device described in Patent Document 1, when the locking device is in the locked state (refer to Patent Document 1), Figure 3 ), a predetermined gap is generated between the movable locking member and the fixed locking member. Furthermore, when a passenger in the car tries to pry open the car door, the movable locking member contacts the fixed locking member, thereby preventing the car door from moving in the opening direction (see FIG. 10 of Patent Document 1). Therefore, the car door is opened only by the length of the gap generated between the movable locking member and the fixed locking member.

[0009] In view of the above-mentioned problems, the present invention aims to provide a car and an elevator equipped with the car, which can prevent the car door from opening when the car-side locking mechanism locks the opening and closing operation of the car-side door.

[0010] Technical means for solving technical problems

[0011] In order to solve the above-mentioned problems and achieve the present purpose, the car of the present invention includes a car room, a pair of car side doors that can cover the opening portion provided in the car room in an openable and closable manner, and a car side locking mechanism that can unlockably lock the pair of car side doors. The car side locking mechanism has a locking side hook member that is rotatably supported on the car side door, and a fixed hook member that is provided in the car room and releasably engages with the locking side hook member. The pair of car side doors have overlapping portions that overlap in a locked state locked by the car side locking mechanism. A locking gap is formed between the locking side hook member and the fixed hook member in the locked state. In addition, the length (L3) of the overlapping margin of the overlapping portion is longer than the length (L1) of the pair of car doors in the locking gap in the opening and closing direction.

[0012] Furthermore, the elevator of the present invention includes the above-mentioned car that performs a lifting motion in the elevator shaft.

[0013] Effects of the Invention

[0014] According to the car and the elevator having the above-described configuration, when the car-side locking mechanism locks the opening and closing operation of the car-side door, the car door can be prevented from opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram showing the structure of an elevator according to one embodiment.

[0016] Figure 2 This is a side view showing a state in which an elevator car according to one embodiment is stopped at an arbitrary floor.

[0017] Figure 3 It is a front view showing a car side door provided in an elevator car according to one embodiment.

[0018] Figure 4 This is a front view of an elevator entrance viewed from the car side according to one embodiment.

[0019] Figure 5 This is a front view showing a state in which a car-side locking mechanism of an elevator according to one embodiment is unlocked.

[0020] Figure 6 This is a front view showing the door opening action of the car side door of the elevator car involved in one embodiment.

[0021] Figure 7 This is an explanatory diagram of a landing door and a car door when the door is closed in an elevator according to an embodiment, as seen from above.

[0022] Figure 8 This is an explanatory diagram of a landing door and a car door when the doors are open in an elevator according to an embodiment, as seen from above. DETAILED DESCRIPTION

[0023] Below, refer to Figure 1 to Figure 7 The elevator according to the embodiment will be described. In addition, the same reference numerals are given to common components in each figure.

[0024] 1. The structure of the elevator

[0025] First, refer to Figure 1 to Figure 3 The structure of an elevator according to one embodiment will be described.

[0026] Figure 1 This is a schematic configuration diagram showing a configuration example of an elevator according to one embodiment. Figure 2 This is a side view showing a state where the car is stopped at an arbitrary floor.

[0027] like Figure 1 As shown, the elevator 1 is a so-called machine room-less elevator that does not have a machine room above the elevator shaft 100 formed in the building structure. The elevator of the present invention is not limited to a machine room-less elevator, and may also be an elevator with a machine room above the elevator shaft 100.

[0028] The elevator 1 includes a car 110 that moves up and down in an elevator shaft 100 , a traction machine 120 , a counterweight 130 , a first driven pulley 140 , a second driven pulley 150 , and a rope 170 .

[0029] A lifting pulley 111 is provided at the lower portion of the car 110. A rope 170 is wound around the lifting pulley 111. The detailed structure of the car 110 will be described later.

[0030] A counterweight side pulley 131 is provided above the counterweight 130. A rope 170 is wound around the counterweight side pulley 131. The traction machine 120 is arranged at the lowest part of the elevator shaft 100, and the car 110 and the counterweight 130 are raised and lowered in a bucket manner via the rope 170. The driving of the traction machine 120 is controlled by a control unit (not shown).

[0031] The first driven pulley 140 and the second driven pulley 150 are rotatably mounted at the uppermost portion of the elevator shaft 100. One end and the other end of the rope 170 are respectively fixed to the uppermost portion of the elevator shaft 100. The rope 170 is extended from the counterweight side pulley 131 provided on the counterweight 130 to the first driven pulley 140, and is wound around the traction machine 120, the second driven pulley 150, and the ascending pulley 111 of the car 110 in sequence.

[0032] The hoisting machine 120 is driven to move the car 110 and the counterweight 130 up and down in the elevator shaft 100. Hereinafter, the direction in which the car 110 and the counterweight 130 move up and down is referred to as the up-and-down direction.

[0033] In addition, if Figure 2 As shown, at the landing 101 where the car 110 stops on each floor of the building structure, there is provided an entrance 102 for people or objects to enter and exit the car 110. At the entrance 102, a pair of landing side doors 211 are provided so as to be openable and closable.

[0034] The landing side door 211 is openably and closably supported by a landing side door unit 212 provided at the upper end of the entrance 102 in the vertical direction and a landing side door threshold 213 provided at the lower end of the entrance 102 in the vertical direction. The landing side door unit 212 will be described later.

[0035] [Car]

[0036] Next, the structure of the car 110 will be described.

[0037] like Figure 1 As shown, the car 110 includes a car chamber 10 for lifting people or objects, a pair of car side doors 11A, 11B, a car side door unit 12, and a car side door threshold 13 (see Figure 2 ). An opening is provided on one surface of the car chamber 10. People or objects enter and exit through the opening.

[0038] The car side door unit 12 is provided at the upper end portion in the vertical direction of the opening portion of the car chamber 10. The car side door threshold 13 is provided at the lower end portion in the vertical direction of the opening portion of the car chamber 10. The pair of car side doors 11A and 11B are supported by the car side door unit 12 and the car side door threshold 13 so as to be openable and closable (movable) in a horizontal direction perpendicular to the vertical direction.

[0039] Figure 3 This is a front view of the car side door 11A as viewed from the landing side.

[0040] like Figure 1 and Figure 3 As shown, the car side door unit 12 is provided with a car side door rail 15 and a drive unit 16 (see Figure 1 ), a transmission belt 17, and a driven roller 18. The car side door rail 15 is parallel to the horizontal direction and extends along the opening and closing (movement) direction of the pair of car side doors 11A, 11B.

[0041] The driving unit 16 is disposed at one end of the car side door unit 12 in the horizontal direction, and the driven roller 18 is disposed at the other end of the car side door unit 12 in the horizontal direction. A driving belt 17 is wound around the driving shaft of the driving unit 16 and the driven roller 18.

[0042] The transmission belt 17 is formed into an endless shape with both ends in the long-side direction connected. When the driving unit 16 is driven, the transmission belt 17 circulates between the driven roller 18 and the driving shaft of the driving unit 16. At this time, the upper and lower parts of the transmission belt 17 in the vertical direction move in opposite directions. A first connecting member 22 described later is connected to the lower part of the transmission belt 17, and a second connecting member 23 described later is connected to the upper part of the transmission belt 17.

[0043] A fixing hook member 34 and a cam member 57 constituting a car locking mechanism 30 described later are fixed to the car door unit 12. When the pair of car doors 11A, 11B are closed, the fixing hook member 34 and the cam member 57 are disposed above the first car door 11A in the vertical direction.

[0044] Next, the pair of car side doors 11A, 11B will be described.

[0045] The pair of car side doors 11A and 11B are respectively formed in a rectangular shape. A first door hanger 21A is provided at the upper end of the first car side door 11A in the vertical direction. A second door hanger 21B is provided at the upper end of the second car side door 11B in the vertical direction. In addition, a slider 14 is provided at the lower end of the pair of car side doors 11A and 11B in the vertical direction. The slider 14 is slidably engaged with a guide groove provided on the car side door threshold 13.

[0046] The first door hanger 21A and the second door hanger 21B are rotatably provided with a moving roller 24 . The moving roller 24 is slidably engaged with the car-side door rail 15 .

[0047] The first door hanger 21A has a first connecting member 22, and the second door hanger 21B has a second connecting member 23. The first connecting member 22 protrudes upward from the upper end of the first door hanger 21A in the vertical direction. The second connecting member 23 protrudes upward from the upper end of the second door hanger 21B in the vertical direction. The first connecting member 22 is connected to the lower part of the transmission belt 17, and the second connecting member 23 is connected to the upper part of the transmission belt 17.

[0048] When the driving unit 16 is driven and the belt 17 moves, the pair of car side doors 11A and 11B move in the door opening direction approaching each other or in the door closing direction moving away from each other via the first coupling member 22 and the second coupling member 23 .

[0049] The first car door 11A is provided with a safety touch plate 25 and a car locking mechanism 30. The safety touch plate 25 is provided at the end of the first car door 11A on the door closing direction side, that is, at the door stop side end 11a close to the second car door 11B.

[0050] The safety touch plate 25 is formed of a long strip member extending in the vertical direction with a length substantially equal to the length of the first car side door 11A in the vertical direction. The safety touch plate is supported on the door stop side end 11a of the first car side door 11A via a pair of link members so as to be movable in the vertical direction and in the opening and closing direction. In addition, a detection unit (not shown) for detecting the movement of the safety touch plate 25 is provided in the door stop side end 11a of the first car side door 11A near the link member supporting the safety touch plate 25. The detection unit detects the load applied to the safety touch plate 25 by detecting the movement of the safety touch plate 25.

[0051] [Car side locking mechanism]

[0052] Next, the car-side locking mechanism 30 will be described.

[0053] like Figure 3 As shown, the car side locking mechanism 30 includes a base plate 31, a first car side engaging member 32, a locking side hook member 33, a fixed hook member 34, a rotating shaft 35, a locking holding member 39, and a pair of first link members 41A and 41B. In addition, the car side locking mechanism 30 has a second car side engaging member 52, a cam member 57, and a pair of second link members 61A and 61B.

[0054] The base plate 31 is formed in a substantially flat plate shape. The base plate 31 is fixed to the first door hanger 21A. Hereinafter, the door opening direction of the first car side door 11A is referred to as the door frame side, and the door closing direction of the first car side door 11A is referred to as the door stop side. A pair of first link members 41A and 41B are arranged at the end of the base plate 31 on the door stop side.

[0055] The pair of first link members 41A, 41B is composed of a lower first link member 41A and an upper first link member 41B. The lower first link member 41A is arranged at the lower end portion of the base plate 31 in the vertical direction, and the upper first link member 41B is arranged at the upper end portion of the base plate 31 in the vertical direction. The lower first link member 41A and the upper first link member 41B are rotatably supported on the base plate 31 via link shafts 42, respectively.

[0056] The ends of the pair of first link members 41A and 41B on the opposite side from the link shaft 42 are provided with shaft portions 43. The first car side engaging member 32 is mounted on the shaft portions 43 of the pair of first link members 41A and 41B. Therefore, the first car side engaging member 32 is movably supported on the base plate 31 via the pair of first link members 41A and 41B.

[0057] The first car side engaging member 32 is formed by a long strip-shaped member extending in a predetermined length in the up-down direction. A transmission part 36 is provided in the middle part of the long side direction of the first car side engaging member 32. The transmission part 36 is provided at the end of the door frame side of the first car side engaging member 32. The transmission part 36 contacts a transmission pin 37 described later.

[0058] In addition, a first stopper 45 fixed to the base plate 31 is arranged near the lower first link member 41A. When the car-side locking mechanism 30 is in the locked state, the first stopper 45 abuts against the door frame side of the lower first link member 41A. Figure 3 The counterclockwise rotation of the cage door 11A is restricted by the first stopper 45. In the present embodiment, the cage side locking mechanism 30 is in the locked state, which is a state in which the cage side locking mechanism 30 locks the opening and closing actions of the pair of cage side doors 11A, 11B.

[0059] A plurality of second stoppers 46 fixed to the base plate 31 are arranged on the door stop side of the first car side engaging member 32. When the car side locking mechanism 30 is in the locked state, the second stoppers 46 are arranged at a predetermined interval from the first car side engaging member 32. Furthermore, when the pair of first link members 41A and 41B rotate and the first car side engaging member 32 moves toward the door stop side, the first car side engaging member 32 abuts against the second stoppers 46 (see Figure 4 ). Thus, the movement of the first car-side engaging member 32 and the pair of first link members 41A, 41B is restricted by the second stopper 46.

[0060] The rotation shaft 35 is disposed on the base plate 31 at a position closer to the door frame than the first car-side engaging piece 32. The locking-side hook member 33 is supported on the rotation shaft 35 so as to be rotatable.

[0061] The locking side hook member 33 includes a hook portion 33a, a rotation receiving portion 33b, a connecting portion 33c and an unlocking receiving portion 33d. The rotation receiving portion 33b is rotatably supported on the rotation shaft 35. The transmission pin 37 is arranged below the rotation receiving portion 33b in the vertical direction than the rotation shaft 35 and is arranged on the door stop side.

[0062] The transmission pin 37 contacts the transmission part 36 provided on the first car side engaging member 32. The first car side engaging member 32 moves downward in the vertical direction and moves to the door stop side via the pair of first link members 41A, 41B. At this time, the movement of the first car side engaging member 32 is transmitted to the transmission pin 37 via the transmission part 36. As a result, the locking side hook member 33 moves in the direction of the rotation axis 35. Figure 3 Turn it counterclockwise (to unlock).

[0063] A connecting portion 33c is provided at the end of the rotation bearing portion 33b on the door stop side. The connecting portion 33c protrudes from the rotation bearing portion 33b toward the door stop side. Furthermore, a hook portion 33a is formed at the end of the connecting portion 33c on the opposite side of the rotation bearing portion 33b. The hook portion 33a protrudes toward the door stop side of the first car side engaging member 32. Furthermore, when the car side locking mechanism 30 is in a locked state, the hook portion 33a is arranged above the fixed hook member 34 in the up-down direction and is engaged with the fixed hook member 34 with a predetermined locking gap L1 therebetween.

[0064] The unlocking bearing portion 33d protrudes upward from the upper end portion in the vertical direction of the end portion of the rotation bearing portion 33b on the door frame side. In addition, the unlocking bearing portion 33d is arranged closer to the door frame side than the rotation shaft 35 supporting the rotation bearing portion 33b. And, the unlocking bearing portion 33d is engaged with the unlocking rod 54 described later. In addition, when the unlocking bearing portion 33d is engaged with the unlocking rod 54 and is pulled toward the door frame side, the rotation bearing portion 33b rotates and moves in the unlocking direction.

[0065] The locking holding member 39 is arranged at the upper end portion in the vertical direction of the connecting portion 33c of the locking side hook member 33. In addition, the locking holding member 39 is arranged on the side closer to the door stop than the first car side engaging member 32. And the locking holding member 39 applies force to the locking side hook member 33 in the downward direction in the vertical direction, that is, in the locking direction, via the connecting portion 33c.

[0066] A compression coil spring is applied as the lock holding member 39 of this example. The lock holding member 39 is not limited to the compression coil spring, and various other elastic members such as a leaf spring and rubber may be used.

[0067] In addition, a pair of second link members 61A and 61B are arranged at the end of the door stop side of the base plate 31. The pair of second link members 61A and 61B are composed of a lower second link member 61A and an upper second link member 61B. The lower second link member 61A is arranged at the lower end of the base plate 31 in the vertical direction, and the upper second link member 61B is arranged at the upper end of the base plate 31 in the vertical direction. The lower second link member 61A and the upper second link member 61B are rotatably supported on the base plate 31 via a link shaft 62, respectively.

[0068] The ends of the pair of second link members 61A and 61B on the opposite side from the link shaft 62 are provided with shaft portions 63. The second car side engaging member 52 is mounted on the shaft portions 63 of the pair of second link members 61A and 61B. Therefore, the second car side engaging member 52 is movably supported on the base plate 31 via the pair of second link members 61A and 61B.

[0069] The second car side engaging member 52 is formed by a strip-shaped member extending in a predetermined length in the vertical direction. The second car side engaging member 52 is arranged on the base plate 31 at a predetermined interval from the first car side engaging member 32. The interval between the first car side engaging member 32 and the second car side engaging member 52 is set to be larger than the interval between the later-described landing side engaging members 235 and 236. Thus, the landing side engaging members 235 and 236 can pass between the first car side engaging member 32 and the second car side engaging member 52 in the vertical direction.

[0070] In addition, a third stopper 65 fixed to the base plate 31 is arranged below the upper second link member 61B in the vertical direction. The upper second link member 61B rotated clockwise abuts against the third stopper 65 (see Figure 6 ). As a result, the rotational movement of the upper second link member 61B is restricted, and the movement of the second car-side engaging member 52 downward in the vertical direction is restricted.

[0071] Furthermore, a fourth stopper 66 fixed to the base plate 31 is disposed on the door frame side of the second car side engaging member 52. Furthermore, when the pair of second link members 61A and 61B rotate and the second car side engaging member 52 moves toward the door frame side, the second car side engaging member 52 abuts against the fourth stopper 66. Thus, the movement of the second car side engaging member 52 and the pair of second link members 61A and 61B is restricted by the fourth stopper 66.

[0072] In addition, the upper end of the second car side engaging member 52 in the vertical direction protrudes upward in the vertical direction from the upper end of the first door hanger 21A. In addition, a cam roller 53 is rotatably mounted on the upper end of the second car side engaging member 52. When the pair of car side doors 11A and 11B are closed, the cam roller 53 abuts against a cam member 57 fixed to the car side door unit 12.

[0073] The cam member 57 is formed in a substantially arc shape, opens toward the door opening direction side of the first car side door 11A, that is, the door frame side, and bends toward the door stop side. The cam roller 53 abuts against the cam member 57, and the position of the second car side engaging member 52 is adjusted. Figure 3 That is, the second car side engaging member 52 is held at a position where the upper second link member 61B does not abut against the third stopper 65 and the second car side engaging member 52 does not abut against the fourth stopper 66. When the cam roller 53 leaves the cam member 57, the second car side engaging member 52 moves downward in the vertical direction due to its own weight (refer to Figure 6 ).

[0074] In addition, an unlocking rod 54 is provided on the second car side engaging member 52. The unlocking rod 54 is arranged between the cam roller 53 of the second car side engaging member 52 and the upper second connecting rod member 61B. The unlocking rod 54 protrudes from the second car side engaging member 52 toward the door stop side. In addition, the unlocking rod 54 is arranged at an appropriate interval from the unlocking receiving portion 33d of the locking side hook member 33 in the locked state. When the second car side engaging member 52 moves toward the door frame side, the unlocking rod 54 engages with the unlocking receiving portion 33d, and pulls the unlocking receiving portion 33d toward the door frame side.

[0075] [Landing side door unit and landing side door]

[0076] Next, refer to Figure 4 The structure of the landing side door unit 212 will be described.

[0077] Figure 4 This is a front view of the entrance 102 as viewed from the car 110 side.

[0078] like Figure 4 As shown, the landing side door unit 212 includes: a landing side door rail 215, a first pulley 216, a second pulley 218, a transmission belt 217, door hangers 221, 221, and a landing side locking mechanism 230. The door hanger 221 is provided at the upper end portion of the landing side door 211 in the up-down direction. A moving roller 224 is rotatably mounted on the door hanger 221. The moving roller 224 is slidably engaged with the landing side door rail 215. The landing side door rail 215 extends along the opening and closing (moving) direction of the pair of landing side doors 211, 211.

[0079] In addition, connecting members 222 and 223 are provided on the two door hangers 221, respectively. The connecting members 222 and 223 are connected to the transmission belt 217 described later. In addition, a landing side locking mechanism 230 is provided on the door hanger 221 of the two door hangers 221 and 211 that is opposite to the first door hanger 21A of the car 110. The landing side locking mechanism 230 will be described later.

[0080] The first pulley 216 is arranged on one side of the landing side door unit 212 in the horizontal direction. The second pulley 218 is arranged on the other side of the landing side door unit 212 in the horizontal direction. A transmission belt 217 is wound around the first pulley 216 and the second pulley 218. The transmission belt 217 is formed into an endless shape with both ends in the long side direction connected. In addition, the upper and lower parts of the transmission belt 217 in the vertical direction move in opposite directions to each other.

[0081] A first connecting member 222 is connected to the lower part of the transmission belt 217. A second connecting member 223 is connected to the upper part of the transmission belt 217. When the transmission belt 217 moves, the pair of landing side doors 211, 211 move toward the closing direction approaching each other or move toward the opening direction away from each other via the connecting members 222, 223.

[0082] [Locking mechanism on the landing side]

[0083] like Figure 4 As shown, the landing side locking mechanism 230 includes a locking side hook member 231, a rotation shaft 232, two landing side engaging pieces 235, 236, a base plate 237, a locking holding member 239, and a stopper 241. In addition, the landing side locking mechanism 230 includes a fixing hook member 234.

[0084] The base plate 237 is formed in a substantially flat plate shape. The base plate 237 is fixed to the door hanger 221. The fixing hook member 234 is fixed to a door hanger 221 different from the door hanger 221 to which the base plate 237 is fixed or to the landing side door 211.

[0085] The base plate 237 is fixed with a rotating shaft 232 and a second-floor-side engaging member 236. The locking-side hook member 231 is rotatably arranged on the rotating shaft 232. The stopper 241 fixed on the base plate 237 abuts against the locking-side hook member 231. The stopper 241 abuts against the limiting piece 231b to limit the rotation of the locking-side hook member 231 in the counterclockwise direction. In addition, the first-floor-side engaging member 235 is rotatably mounted on the upper end of the locking-side hook member 231.

[0086] The first landing side engaging member 235 and the second landing side engaging member 236 are arranged opposite to each other in the opening and closing direction of the pair of landing side doors 211, 211. In addition, when the car 110 stops at any floor, the first landing side engaging member 235 and the second landing side engaging member 236 are arranged between the first car side engaging member 32 and the second car side engaging member 52 in the car side locking mechanism 30 (refer to Figure 3 ).

[0087] In addition, a locking holding member 239 is arranged near the first landing side engaging piece 235 in the locking side hook member 231. One end of the locking holding member 239 is fixed to the base plate 237, and the other end is fixed to the upper end portion of the locking side hook member 231 in the vertical direction. And the locking holding member 239 applies force to the locking side hook member 231 in the locking direction, that is, in the downward direction in the vertical direction. Thus, the locking state of the locking side hook member 231 in the landing side locking mechanism 230 is maintained.

[0088] The force of the lock holding member 239 in the landing side locking mechanism 230 to maintain the locked state is set to be greater than the force of the lock holding member 39 of the car side locking mechanism 30 to maintain the locked state. That is, the force of the lock holding member 39 of the car side locking mechanism 30 is set to be smaller than the force of the lock holding member 239 of the landing side locking mechanism 230.

[0089] 2. Opening action of car side door and landing side door

[0090] Next, refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 The door opening operation of the elevator 1 having the above-mentioned structure will be described. First, an example in which the car 110 stops at a contact area where the car-side engaging members 32, 52 and the landing-side engaging members 235, 236 can contact each other will be described.

[0091] Figure 5 It is a front view showing a state where the car-side locking mechanism 30 is unlocked. Figure 6 This is a front view showing the opening action of the car side door.

[0092] like Figure 2 As shown in FIG. 1 , when the car 110 stops at any floor, the car side door unit 12 is opposite to the landing side door unit 212. Also, the car side locking mechanism 30 is opposite to the landing side locking mechanism 230. Also, as shown in FIG. Figure 3 As shown, the first landing side engaging member 235 and the second landing side engaging member 236 are inserted between the first car side engaging member 32 and the second car side engaging member 52 .

[0093] In this state, the drive unit 16 (see Figure 1 ) is driven, when a pair of car side doors 11A, 11B move in the direction of opening the door away from each other, as Figure 5 As shown, the first car side engaging member 32 abuts against the first landing side engaging member 235 .

[0094] When the first car side door 11A further moves in the door opening direction, the first car side engaging member 32 is pressed in the direction opposite to the moving direction of the first car side door 11A by the first landing side engaging member 235. Therefore, the pair of first link members 41A and 41B rotate around the link shaft 42. Furthermore, the first car side engaging member 32 moves downward in the vertical direction in the direction opposite to the moving direction of the first car side door 11A.

[0095] The movement of the first car side engaging member 32 is transmitted to the locking side hook member 33 via the transmission part 36 and the transmission pin 37. Therefore, the locking side hook member 33 resists the force of the locking holding member 39 and rotates around the rotation axis 35. In addition, the locking side hook member 33 rotates from the locking position where the hook part 33a is engaged with the fixed hook member 34 to the unlocking position facing upward in the vertical direction. As a result, the engagement between the hook part 33a and the fixed hook member 34 is released, and the car side locking mechanism 30 is unlocked. The first car side engaging member 32 stops its movement by contacting with the second stopper 46.

[0096] like Figure 6 As shown, when the first car side door 11A moves further toward the door opening direction, the cam roller 53 provided on the second car side engaging member 52 separates from the cam member 57. Therefore, the second car side engaging member 52 moves downward in the up-down direction due to its own weight. In addition, a pair of second connecting rod members 61A, 61B connected to the second car side engaging member 52 rotates around the connecting rod shaft 62. Therefore, the second car side engaging member 52 moves toward the direction approaching the first car side engaging member 32, i.e., the door stop side. And, the second car side engaging member 52 abuts against the second landing side engaging member 236. Thus, the two landing side engaging members 235, 236 are held by the first car side engaging member 32 and the second car side engaging member 52.

[0097] When the two landing side engaging members 235, 236 are held by the first car side engaging member 32 and the second car side engaging member 52, the pair of car side doors 11A, 11B and the pair of landing side doors 211, 211 are engaged. And, thereafter, the pair of landing side doors 211, 211 move in the door opening direction together with the pair of car side doors 11A, 11B. The car side door 11A moves from Figure 3 The locked state shown moves to Figure 7 The distance L2 in the engagement completion state shown is the stroke difference between the pair of car-side doors 11A, 11B and the pair of landing-side doors 211, 211 (hereinafter referred to as "stroke difference L2").

[0098] When the first car side door 11A moves in the door opening direction, the first landing side engaging member 235 is pressed by the first car side engaging member 32. Figure 4 ) resists the force of the locking holding member 239 and rotates around the rotating shaft 232. As a result, the landing side locking mechanism 230 is unlocked. As a result, the landing side doors 211, 211 move in the door opening direction together with the car side doors 11A, 11B of the car 110 and the landing side doors 211, 211 of the landing 101 are completed.

[0099] During a power outage, when the first landing side engaging member 235 and the second landing side engaging member 236 are inserted between the first car side engaging member 32 and the second car side engaging member 52, the landing side doors 211, 211 can be opened by the operator manually, thereby opening the car side doors 11A, 11B. Specifically, the landing side locking mechanism 230 is unlocked using a clamp from the landing 101 side. Then, the landing side doors 211, 211 are moved in the door opening direction by the operator's hand.

[0100] By moving the landing side doors 211, 211 in the door opening direction, the second landing side engaging member 236 abuts against the second car side engaging member 52. In addition, if the landing side doors 211, 211 are moved in the door opening direction, the second car side engaging member 52 is pressed by the second landing side engaging member 236 in the direction of separation from the first car side engaging member 32, i.e., the door frame side.

[0101] By pressing the second car side engaging member 52 toward the door frame side, the pair of second link members 61A, 61B connected to the second car side engaging member 52 rotates around the link shaft 62. In addition, the cam roller 53 provided on the second car side engaging member 52 moves along the cam member 57. Therefore, the second car side engaging member 52 moves upward in the vertical direction.

[0102] The unlocking rod 54 provided on the second car side engaging member 52 is moved by the second car side engaging member 52, and is also moved toward the door frame side together with the second car side engaging member 52. Therefore, the unlocking rod 54 is engaged with the unlocking receiving portion 33d, and the unlocking receiving portion 33d is pulled to the door frame side. Thus, the locking side hook member 33 resists the force of the locking holding member 39, and the hook portion 33a is rotated in the unlocking direction toward the upper part in the up-down direction around the rotating shaft 35. As a result, the engagement between the hook portion 33a and the fixed hook member 34 is released, and the car side locking mechanism 30 is unlocked. In addition, the car side doors 11A and 11B can also be moved toward the door opening direction by the operator's hand.

[0103] 3. Overlap structure of car side door

[0104] Next, refer to Figure 7 and Figure 8 The overlapping structure of the pair of car side doors 11A, 11B will be described.

[0105] Figure 7 This is an explanatory diagram of a pair of car-side doors 11A, 11B and a pair of landing-side doors 211, 211 when the doors are closed, as viewed from above. Figure 8 This is an explanatory diagram of a pair of car-side doors 11A, 11B and a pair of landing-side doors 211, 211 when the doors are open, as viewed from above.

[0106] like Figure 7 and Figure 8 As shown, a pair of car side doors 11A and 11B have overlapping structures that overlap each other in a locked state. The overlapping structure is formed on the side of the door stop side end 11a of the pair of car side doors 11A and 11B. That is, the overlapping structure is formed by an inner overlapping portion 311A ​​provided on the car side door 11A and an outer overlapping portion 311B provided on the car side door 11B.

[0107] The inner overlapping portion 311A ​​is provided on the inner side of the car room 10 in the thickness direction of the car side door 11A and protrudes toward the car side door 11B. On the other hand, the outer overlapping portion 311B is provided on the landing side in the thickness direction of the car side door 11B and protrudes toward the car side door 11A. Figure 7 As shown, in the locked state, the inner overlapping portion 311A ​​and the outer overlapping portion 311B overlap each other in a direction orthogonal to the opening and closing (movement) direction of the pair of car-side doors 11A, 11B and to the up-down direction.

[0108] In the locked state, the front end surface of the inner overlapping portion 311A ​​faces the side surface of the door stop side end portion 11a of the car side door 11B with an appropriate gap therebetween. In addition, in the locked state, the outer overlapping portion 311B faces the side surface of the door stop side end portion 11a of the car side door 11A with an appropriate gap therebetween. Thus, the inner overlapping portion 311A ​​and the outer overlapping portion 311B can avoid contacting the side surface of the opposite door stop side end portion 11a, thereby preventing the pair of car side doors 11A and 11B from being damaged.

[0109] An appropriate gap is formed between the mutually overlapping portions (overlap margin) of the inner overlapping portion 311A ​​and the outer overlapping portion 311B. Therefore, the inner overlapping portion 311A ​​and the outer overlapping portion 311B do not contact each other. In addition, in the overlap margin between the inner overlapping portion 311A ​​and the outer overlapping portion 311B, the length L3 (hereinafter referred to as "the length L3 of the overlap margin") along the opening and closing (movement) direction of the pair of car side doors 11A, 11B is greater than the locking gap L1 ( Figure 3 ) should be long.

[0110] When a power outage occurs, when the pair of car side doors 11A and 11B are forcibly opened from the indoor side of the car room 10, they are opened until the hook portion 33a abuts against the fixed hook member 34 (locking gap L1). However, since the length L3 of the overlap margin is longer than the locking gap L1, the pair of car side doors 11A and 11B can be kept closed in the locked state. As a result, a car and an elevator with higher safety can be realized. In addition, by making the overlapping portion into an overlapped structure, the overlapping portion can be processed relatively easily, thereby achieving cost reduction.

[0111] If the length L3 of the overlap margin is equal to the locking gap L1, the pair of car side doors 11A, 11B will not open. That is, the length L3 of the overlap margin only needs to be greater than the locking gap L1.

[0112] In addition, the length L3 of the overlap margin is set to be less than the above-mentioned stroke difference L2. Thus, even if the structure or opening and closing performance of the car side door unit 12 or the landing side door unit 212 is not changed, the inner overlapping portion 311A ​​and the outer overlapping portion 311B can prevent the opening of the pair of car side doors 11A and 11B from being narrowed (see Figure 8 ). As a result, it is possible to not hinder passengers from getting on and off the vehicle.

[0113] In addition, if Figure 8 As shown, the length of the opening in the opening and closing direction of the pair of car side doors 11A, 11B when the door is opened is longer than the length of the opening in the opening and closing direction of the pair of landing side doors 211, 211 when the door is opened. Therefore, the inner overlapping portion 311A ​​and the outer overlapping portion 311B can not hinder passengers from getting on and off.

[0114] The present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the gist of the invention described in the claims.

[0115] In the above-mentioned embodiment, the overlapping portions 311A ​​and 311B of a pair of car side doors 11A and 11B are set as an overlapping structure. However, the overlapping portion involved in the present invention is not limited to the overlapping structure, as long as the pair of car side doors 11A and 11B overlap in a manner that the openings are not formed. As the overlapping portion involved in the present invention, for example, it can also be an overlapping portion that is formed into a right triangle when viewed from the top and bottom and overlaps by mutually inclined surfaces facing each other. In addition, it can also be a convex portion with an arc shape when viewed from the top and bottom of the overlapping portion on one side, and a concave portion with an arc shape when viewed from the top and bottom of the overlapping portion on the other side.

[0116] In this specification, words such as "parallel" and "orthogonal" are used, but they do not mean only strictly "parallel" and "orthogonal", but can be a state of "approximately parallel" or "approximately orthogonal" that includes "parallel" and "orthogonal" and is within the range that can exert their functions.

[0117] Description of symbols

[0118] 1… elevator, 10… car room, 11A, 11B… car side door, 11a… door stop side end, 30… car side locking mechanism, 31… base plate, 32… first car side engaging member, 33… locking side hook member, 34… fixed hook member, 35… rotating shaft, 36… transmission part, 37… transmission pin, 39… locking holding member, 41A… lower first link member, 41B… upper first link member, 42… connecting rod shaft, 43… shaft part, 45… first stop member, 46… second stop member, 52… second car side engaging member, 53… cam roller, 54… unlocking lever, 55… locking mechanism, 56… locking mechanism, 57… locking mechanism, 58… locking mechanism, 59… locking mechanism, 60… locking mechanism, 61… locking mechanism, 62… locking mechanism, 63… locking mechanism, 64… locking mechanism, 65… locking mechanism, 66… locking mechanism, 67… locking mechanism, 68… locking mechanism, 69… locking mechanism, 70… locking mechanism, 71… locking mechanism, 72… locking mechanism, 73… locking mechanism, 74… locking mechanism, 75… locking mechanism, 76… locking mechanism, 77… locking mechanism, 78… locking mechanism, 79… locking mechanism, 80… locking mechanism, 81… locking mechanism, 82… locking mechanism, 83… locking mechanism, 84… locking mechanism, 85… locking mechanism, 86… locking mechanism, 87… locking mechanism, 88… locking mechanism, 89… locking mechanism, 90… locking mechanism, 91… locking mechanism, 92… locking mechanism, 93… locking mechanism, 94… locking mechanism, 95… locking mechanism, 96… locking mechanism, 97… locking mechanism, 98… locking mechanism, 99… locking mechanism, 100… locking mechanism, 10 7… cam member, 61A… lower second link member, 61B… upper second link member, 62… connecting rod shaft, 63… shaft portion, 65… third stopper, 66… fourth stopper, 100… elevator shaft, 101… landing, 102… entrance / exit, 111… ascent pulley, 120… traction machine, 131… counterweight side pulley, 140… first driven pulley, 150… second driven pulley, 170… rope, 211… landing side door, 311A… inner overlapping portion, 311B… outer overlapping portion, L1… locking gap, L2… stroke difference, L3… overlapping margin length.

Claims

1. A car, characterized in that: include: Car room; A pair of car side doors that can be opened and closed to cover an opening provided in the car chamber; as well as A car side locking mechanism for unlockably locking the pair of car side doors, The car-side locking mechanism includes a locking-side hook member rotatably supported on the car-side door, and a fixing hook member disposed in the car chamber and releasably engaged with the locking-side hook member. The pair of car side doors have overlapping portions that overlap in a locked state locked by the car side locking mechanism. A locking gap is formed between the locking side hook member and the fixed hook member in the locked state. The length of the overlap margin of the overlapping portion is longer than the length of the pair of car doors in the locking gap in the opening and closing direction and is smaller than the stroke difference between the pair of car side doors and the pair of landing side doors moving together with the pair of car side doors.

2. The car according to claim 1, characterized in that The length of the opening in the opening and closing direction when the pair of car side doors are opened is longer than the length of the opening in the opening and closing direction when the pair of landing side doors are opened.

3. The car according to claim 1, characterized in that The overlapping portion is a lap joint structure.

4. The car according to claim 2, characterized in that The overlapping portion does not contact the side surface on the opposite car-side door side.

5. An elevator having a car that performs a lifting action in an elevator shaft, wherein: The car comprises: Car room; A pair of car side doors that can be opened and closed to cover an opening provided in the car chamber; as well as A car side locking mechanism for unlockably locking the pair of car side doors, The car-side locking mechanism includes a locking-side hook member rotatably supported on the car-side door, and a fixing hook member disposed in the car chamber and releasably engaged with the locking-side hook member. The pair of car side doors have overlapping portions that overlap in a locked state locked by the car side locking mechanism. A locking gap is formed between the locking side hook member and the fixed hook member in the locked state. The length of the overlap margin of the overlapping portion is longer than the length of the pair of car doors in the locking gap in the opening and closing direction and is smaller than the stroke difference between the pair of car side doors and the pair of landing side doors moving together with the pair of car side doors.

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