WO2017119117A1

WO2017119117A1 - Cage movement restricting device and elevator

Info

Publication number: WO2017119117A1
Application number: PCT/JP2016/050480
Authority: WO
Inventors: 一宏久恵; 丸山　直之
Original assignee: 三菱電機株式会社
Priority date: 2016-01-08
Filing date: 2016-01-08
Publication date: 2017-07-13
Also published as: CN108473276B; JPWO2017119117A1; CN108473276A; DE112016006176T5; JP6452857B2

Abstract

This cage movement restricting device is equipped with: a fixing member which is provided to one of a hoistway and a cage; a movable member which is provided to the other one of the hoistway and the cage, and which can move between a cage movement-restricting position and a cage movement-permitting position; and a switch that detects a state in which the movable member is at the cage movement-permitting position, wherein the movable member has a stopper part, the fixing member has a receiving part, the stopper part being at the cage movement-restricting position is situated so as to abut the receiving part when the cage moves, whereas the stopper part being at the cage movement-permitting position is situated so as not to interfere with the receiving part when the cage moves, and the movable member has an elastic body attached thereto that keeps the movable member at the cage movement-permitting position.

Description

Car movement restriction device and elevator

The present invention relates to an apparatus for regulating the movement of an elevator car.

The car movement restriction device is used, for example, to prevent the car from moving up and down when a worker performs maintenance work on the car. Patent Document 1 discloses two types of car movement restriction devices.

First, the car movement restriction device disclosed in FIGS. 7 and 8 of Patent Document 1 will be described. A fixing member having an engagement hole is attached to the guide rail for guiding the raising and lowering of the car. On the other hand, the cage is provided with a movable member inserted into the engagement hole. The car movement restriction device includes a limit switch that closes when the movable member is at a predetermined storage position. In the storage position, the movable member has come out of the engagement hole. In the engagement position, the movable member is inserted through the engagement hole.

And when the limit switch is open, the elevator hoist is controlled not to drive. In this way, the movement of the car is restricted.

However, the car movement restriction device disclosed in FIGS. 7 and 8 of Patent Document 1 can only detect whether or not the movable member is in the storage position. For this reason, if the hoisting machine is driven and the car is moved up and down in a state where a failure has occurred in the limit switch, or in a state where the movable member is not inserted into the engagement hole and the movable member is not in the storage position, The movable member may interfere with the fixed member or the device in the hoistway, and the device may be damaged.

As a solution to such a problem, there is a car movement restriction device disclosed in FIGS. In this car movement restriction device, the car is provided with a first switch device. The first switch device is actuated by a cam of the movable member. The first switch device is closed when the movable member is in a predetermined storage position. The first switch device opens when the movable member is in the engagement position inserted into the engagement hole. Further, the first switch device opens even when the movable member is in a midway position that is a transitional state between the storage position and the engagement position.

On the other hand, the car is provided with a second switch device. The movable member has a hook portion that is inserted into the engagement hole, and the second switch device is disposed in the hook portion. The second switch device is closed when the movable member is in the engagement position inserted into the engagement hole. The second switch device opens when the movable member is in the storage position. Furthermore, the second switch device opens even when the movable member is in a midway position that is a transitional state between the storage position and the engagement position.

In such a car movement restriction device, the state where the movable member is in the storage position and the state where the movable member is in the engagement position are individually detected based on signals obtained individually from the two switch devices. be able to.

International Publication No. 2002/098780

The car movement restriction device disclosed in FIGS. 1 to 6 of Patent Document 1 has been able to detect the state itself where the movable member is in the engagement position and limit the drive of the hoisting machine. A switch device was required. Therefore, it is more preferable if the cost can be further reduced while the device can be prevented from being damaged.

The present invention has been made in view of the above, and an object of the present invention is to provide a car movement restriction device and an elevator that can prevent damage to equipment while enabling cost reduction.

In order to achieve the above-described object, a car movement restriction device according to the present invention includes a fixing member provided on one of a hoistway and a car, and a car movement restriction position and a car provided on the other of the hoistway and the car. A movable member that is movable between movement-permitted positions; and a switch that detects a state in which the movable member is in the car movement-permitted position. The movable member has a stopper portion, and the fixed member receives The stopper portion is in a position where it comes into contact with the receiving portion as the car moves at the car movement restriction position, and the stopper portion is located at the car movement allowable position at the position of the car. The movable member is in a position where it does not interfere with the receiving portion as it moves, and the movable member is connected to an elastic body that maintains the movable member at the car movement allowable position.
Furthermore, the elevator of this invention for achieving the said objective is provided with the said car provided in the said hoistway, and the cage | basket | car movement control apparatus of this invention mentioned above.

According to the present invention, it is possible to prevent the equipment from being damaged while enabling cost reduction.

It is a figure which shows the state which has a movable member in a car movement allowable position regarding the car movement control apparatus of this Embodiment 1. FIG. It is a figure which shows the state which has a movable member in a car movement control position regarding the car movement control apparatus of this Embodiment 1. FIG. It is a figure which shows the structure of FIG. 2 from the direction of arrow III of FIG. It is a figure of the same aspect as FIG. 3 regarding Embodiment 2 of this invention. It is a figure of the same aspect as FIG. 3 regarding the 1st example of Embodiment 3 of this invention. It is a figure of the same aspect as FIG. 3 regarding the 2nd example of Embodiment 3 of this invention. It is a figure of the same aspect as FIG. 2 regarding Embodiment 4 of this invention. It is a figure of the same aspect as FIG. 3 regarding Embodiment 4 of this invention. It is a figure of the same aspect as FIG. 1 regarding the 1st example of Embodiment 5 of this invention. It is a figure of the same aspect as FIG. 1 regarding the 2nd example of Embodiment 5 of this invention. It is a figure of the same aspect as FIG. 1 regarding the 1st example of Embodiment 6 of this invention. It is a figure of the same aspect as FIG. 2 regarding the 1st example of Embodiment 6 of this invention. It is a figure of the same aspect as FIG. 1 regarding the 2nd example of Embodiment 6 of this invention. It is a figure of the same aspect as FIG. 2 regarding the 1st example of Embodiment 7 of this invention. It is a figure of the same aspect as FIG. 1 regarding the 2nd example of Embodiment 7 of this invention. It is a figure which shows the state which has a movable member in a car movement allowable position regarding the car movement control apparatus of Embodiment 8 of this invention. It is a figure which shows the outline | summary of the elevator of this Embodiment 9. FIG.

Embodiments of a car movement restriction device and an elevator according to the present invention will be described below with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

Embodiment 1 FIG.
FIG. 1 is a diagram showing a state where the movable member is in the car movement allowable position with respect to the car movement restriction device of the first embodiment. FIG. 2 is a diagram showing a state where the movable member is in the car movement restriction position with respect to the car movement restriction device of the first embodiment. FIG. 3 is a diagram showing the configuration of FIG. 2 from the direction of arrow III in FIG.

The car movement restriction device of the present invention is provided on one of the hoistway and the car, and is provided on the other of the hoistway and the car, and is movable between the car movement restriction position and the car movement allowable position. A movable member; and a switch that detects a state in which the movable member is in the car movement allowable position. The movable member is connected to an elastic body that maintains the movable member at the car movement allowable position. In the car movement restriction device 15 according to the first embodiment, which is a specific example of the present invention, the fixing member 17 is supported by a portion integral with the hoistway. More specifically, the fixing member 17 is fixed to the car guide rail 13 provided in the hoistway by bolts. That is, the fixing member 17 is integrally supported by the hoistway. The fixing member 17 is a plate-like member.

On the other hand, the movable member 19 is supported by the car 5 so as to be rotatable. A rotation shaft 21 is provided at one end of the movable member 19 as viewed from the direction in which the rotation center extends, that is, in FIG. The rotating shaft 21 is supported by the car 5. More specifically, the other end of the movable member 19 can move in an arc around the rotation shaft 21.

The cage 5 is provided with a bracket 23, and the above-described switch 25 is attached to the bracket 23. One end of an elastic body 27 is connected to the movable member 19. In the first embodiment, the elastic body 27 is a coil spring. The elastic body 27 is located on the side of the movable member 19 opposite to the side facing the fixed member 17.

The movable member 19 has a stopper portion 29. The stopper portion 29 is formed at the other end of the movable member 19. On the other hand, the fixing member 17 has a receiving portion 31. The receiving part 31 includes an upper contact part 33 and a lower contact part 35. The fixing member 17 has a through hole 37, a portion defining the upper portion of the hole is an upper contact portion 33, and a portion defining the lower portion of the hole is a lower contact portion 35.

The movable member 19 can rotate between the car movement restriction position and the car movement allowable position. At the car movement restriction position, as shown in FIG. 2, the stopper portion 29 is aligned with the receiving portion 31 along the car ascending / descending direction. In the illustrated example, the stopper portion 29 is arranged along the direction in which the receiving portion 31 and the car guide rail 13 extend. Therefore, the stopper portion 29 is in a position where it comes into contact with the receiving portion 31 as the car 5 moves in the car movement restriction position. In other words, the car movement restriction position of the movable member 19 is when the stopper portion 29 is in a position where it comes into contact with the receiving portion 31 as the car 5 moves. In the first embodiment, since the receiving portion 31 is obtained along with the formation of the through hole 37, the stopper portion 29 is inserted into the through hole 37 at the car movement restriction position. .

At the car movement allowable position, as shown in FIG. 1, the stopper portion 29 is retracted from the through hole 37. That is, the stopper portion 29 is not at a position where it comes into contact with the receiving portion 31 as the car 5 moves, but at a position where it does not interfere with the receiving portion 31 as the car 5 moves. In other words, the car movement allowable position of the movable member 19 is when the stopper portion 29 is in a position where it does not interfere with the receiving portion 31 as the car 5 moves.

A concave portion 39 and a concave portion 41 are formed on the upper and lower sides of the stopper portion 29, respectively. A return prevention member 43 is provided on the surface of the fixed member 17 opposite to the side facing the movable member 19.

The return prevention member 43 maintains the movable member 19 at the car movement restriction position. The return prevention member 43 is an elongated plate-like member. The return prevention member 43 is disposed above the through hole 37 of the fixing member 17. A rotation shaft is provided at one end of the return preventing member 43, and the return preventing member 43 is supported by the fixed member 17 so as to be rotatable.

When the movable member 19 is in the car movement restriction position, the upper contact portion 33 and the return prevention member 43 are located above the upper concave portion 39. At this time, when the other end of the return preventing member 43 is rotated downward, a part of the return preventing member 43 is inserted into the recess 39 as shown in FIG. The movable member 19 is provided with a convex portion 45 protruding upward from the stopper portion 29 at a position on the front side when moving toward the car movement restriction position relative to the stopper portion 29. For this reason, when the movable member 19 is in the car movement restriction position and the return preventing member 43 is rotated downward as shown in FIG. The prevention member 43 contacts the convex portion 45. Accordingly, the stopper portion 29 is prevented from coming out of the through hole 37, and the state where the movable member 19 is in the car movement restriction position is maintained.

One end of the elastic body 27 described above is connected to the movable member 19, and the other end of the elastic body 27 is connected to the bracket 23. When the movable member 19 is in the car movement allowable position as shown in FIG. 1, the elastic body 27 is in a natural length state or a state slightly stretched from the natural length. Therefore, when the movable member 19 is moved from the car movement allowable position in a direction approaching the car movement restriction position, the movable member 19 always has an elastic force in a direction to return the movable member 19 to the car movement allowable position. The elastic body 27 is applied. In other words, in a state where an operating force other than the elastic force by the elastic body 27 is not applied to the movable member 19, the state where the movable member 19 is in the car movement allowable position is maintained.

A switch 25 is attached to the bracket 23. A control device 47 is connected to the switch 25. The control device 47 controls the driving device that raises and lowers the car 5 in accordance with a signal from the switch 25.

A cam 49 is attached to the movable member 19. When the movable member 19 is in the car movement restricting position, the cam 49 abuts against the operating piece of the stopper portion 29 and puts the switch 25 into an operating state.

The switch 25 has a normally closed contact and is connected in series with the safety circuit. When the switch 25 is actuated by the cam 49, that is, when the contact of the switch 25 is opened, the power supply to the drive device is cut off by the control device 47. Thereby, when the movable member 19 is in the car movement allowable position, the car 5 can be operated by the driving device, but when the movable member 19 is in the car movement restricting position, the operation of the car 5 is blocked.

Next, the operation of the car movement restriction device described above will be described. The movable member 19 is rotated by the operator from the state shown in FIG. As shown in FIG. 2, when the movable member 19 is in the car movement restriction position, the switch 25 is activated by the cam 49. Further, when the movable member 19 is in the middle of the state shown in FIG. 1 and the state shown in FIG. 2, the elastic force of the elastic body 27 is applied unless a manual operation force is applied to the movable member 19. Thus, the movable member 19 is immediately returned to the car movement allowable position. That is, the position of the movable member 19 in FIG. 1 is ensured as the steady position of the movable member 19. It should be noted that the movable member 19 may be positioned by contacting the movable member 19 with a part of the bracket 23 at the car movement allowable position.

When the movable member 19 is in the car movement restriction position, the movement of the car 5 is restricted. For example, if the brake device is released in a state where the counterweight is heavier than the car 5, the car 5 rises. On the other hand, in the first embodiment, the stopper portion 29 of the movable member 19 contacts the upper contact portion 33 of the fixed member 17. Thereby, the raise of the cage | basket | car 5 is controlled. At this time, the return preventing member 43 follows the rise of the stopper portion 29 and rotates to the height of the upper contact portion 33 which is the upper edge portion of the through hole 37. Therefore, the rise of the movable member 19 is not hindered while the effect of preventing the stopper portion 29 from coming off from the through hole 37 is maintained.

As described above, according to the car movement restriction device of the first embodiment described above, the movable member is held at the car movement allowable position which is the steady position unless the movable member is consciously maintained at the car movement restriction position. Therefore, damage to the device can be prevented with only a single switch. Therefore, compared with an aspect in which a plurality of switches are provided, it is possible to reduce component costs, installation costs, and maintenance costs associated with switch installation. That is, it is possible to prevent damage to the device while enabling cost reduction. In addition, it is not necessary to install switches at multiple locations on the car, and it is not necessary to install multiple switch operation parts and wiring corresponding to multiple switches, reducing the space occupied by equipment on the car. be able to. Furthermore, since only a single switch is required, the risk of switch installation and wiring errors that can occur in an embodiment in which a plurality of switches are provided is greatly reduced.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described. The second embodiment can be the same as the first embodiment described above except for the parts described below.

FIG. 4 is a diagram related to the second embodiment and similar to FIG. The car movement restriction device 115 according to the second embodiment includes a return prevention member 143 that is slidably supported by the fixing member 17. The return preventing member 143 is configured by a plate-like member. The fixed member 17 is provided with a pair of guide plates 151. The pair of guide plates 151 are disposed substantially parallel to each other. Both ends in the longitudinal direction of the return preventing member 143 are sandwiched between the pair of guide plates 151 and the fixing member 17. Accordingly, the return preventing member 143 is supported by the fixing member 17 so as to be slidable in the vertical direction. If the return preventing member 143 is slid downward when the movable member 19 is in the car movement restricting position, the return preventing member 43 contacts the convex portion 45. Accordingly, the stopper portion 29 is prevented from coming out of the through hole 37, and the state where the movable member 19 is in the car movement restriction position is maintained.

According to the second embodiment, as in the first embodiment, it is possible to reduce the cost while preventing the equipment from being damaged. In addition, the second embodiment also provides the following advantages. Since the slide type return prevention member can be supported at a plurality of locations, the return of the movable member can be prevented in a higher strength mode than the single-point support rotation type return prevention member.

Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described. The third embodiment can be the same as the first embodiment described above except for the parts described below.

Two specific examples will be described as the third embodiment. FIG. 5 is a diagram of the same mode as FIG. 3 regarding the first example of the third embodiment. The return preventing member 243 in the car movement restricting device 215 according to the third embodiment is made of rubber. The rubber is provided with a notch through which the stopper portion 29 can pass. More specifically, the return prevention member 243 is formed of a rubber sheet. The rubber sheet covers the through hole 37 of the fixing member 17. The rubber sheet is provided with a cut in the vertical direction. By the operation of the operator, the stopper portion 29 and the convex portion 45 pass through the notch of the return preventing member 243, and the movable member 19 is set at the car movement restriction position. When the movable member 19 is in the car movement restriction position, the return preventing member 243 contacts the convex portion 45. Thereby, even when the operator does not hold down the movable member 19, the stopper portion 29 is prevented from coming out of the through hole 37, and the state where the movable member 19 is in the car movement restriction position is maintained. Further, when the operator pushes and widens the notch of the return preventing member 243, the stopper portion 29 retreats from the notch of the return preventing member 243, and the movable member 19 returns to the car movement allowable position by the action of the elastic body 27.

FIG. 6 is a diagram similar to FIG. 3 regarding the second example of the third embodiment. The return prevention member 343 in the car movement restriction device 315 is configured in the same manner as the return prevention member 243 of the first example except that the cutting direction is different. The rubber sheet of the return preventing member 343 is provided with a plurality of cuts extending in the lateral direction.

Also in the third embodiment, as in the first embodiment, it is possible to reduce the cost while preventing the device from being damaged. In addition, the following advantages can be obtained in the third embodiment. According to the return prevention member made of rubber, the action of moving the movable member to the car movement restriction position itself can be obtained to maintain the movable member at the car movement restriction position, thereby simplifying the action of the operator. There are advantages to being. Further, the movable member can be maintained at the car movement restriction position with a single component called a rubber sheet.

Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described. The fourth embodiment can be the same as the first embodiment described above except for the parts described below.

FIG. 7 is a diagram of the same mode as in FIG. 2 regarding the fourth embodiment, and FIG. 8 is a diagram of the same mode as in FIG. 3 regarding the fourth embodiment. The return prevention member 443 in the car movement restriction device 415 according to the fourth embodiment is attached to one of the fixed member 17 and the movable member 19. When the movable member 19 is in the car movement restriction position, the movable member 19 comes into contact with the other of the fixed member 17 and the movable member 19 to maintain the movable member 19 in the car movement restriction position. 7 and 8 show an example in which the return prevention member 443 is attached to the movable member 19. However, as the fourth embodiment, an aspect in which the return prevention member 443 is attached to the fixed member 17 is also possible. Including.

The return preventing member 443 is a magnet. On the other hand, when the movable member 19 is in the car movement restriction position, the portion of the fixed member 17 with which the magnet abuts is made of a ferromagnetic material. When the movable member 19 is moved to the car movement restriction position by the operator's operation, the contact state between the return preventing member 443 and the fixed member 17 is maintained by the magnetic force. Thereby, the state which the movable member 19 exists in a cage | basket | car movement control position is maintained.

According to the fourth embodiment, as in the first embodiment, it is possible to reduce the cost while preventing the device from being damaged. In addition, the following advantages can be obtained in the fourth embodiment. According to the return prevention member composed of magnets, the operation of moving the movable member to the car movement restriction position can be obtained by maintaining the movable member at the car movement restriction position, thereby simplifying the action of the operator. There are advantages to being. Furthermore, in the anti-return member made of a magnet, there is no fear of deterioration of the material even for a very long period of time compared to the case where the anti-return member itself is made of a soft and flexible member such as rubber. There is an advantage that the burden of maintenance is reduced.

Embodiment 5 FIG.
Next, a fifth embodiment of the present invention will be described. In the fifth embodiment, the return guarantee piece is supported on the movable member so as to rotate integrally with the movable member. FIG. 9 is a diagram of the same mode as FIG. 1 regarding the first example of the fifth embodiment. FIG. 10 is a diagram of the same mode as FIG. 1 regarding the second example of the fifth embodiment. The fifth embodiment can be the same as any of the first to fourth embodiments described above except for the parts described below. FIG. 9 and FIG. 10 are examples in which the contents other than those described below are the same as those in the first embodiment.

As shown in FIG. 9, in the first example of the fifth embodiment, the return guarantee piece 553 is fixed to the movable member 19 of the car movement restriction device 515. As shown in FIG. 10, in the second example of the fifth embodiment, the return guarantee piece 653 is fixed to the cam 49 of the car movement restriction device 615. In either example, the

return guarantee pieces

553 and 653 extend to a position where the movable member 19 can come into contact with the operated portion 26 of the switch 25 that has not been returned when the movable member 19 is in the car movement allowable position. That is, when the operated portion 26 of the switch 25 is in the non-returned position indicated by the dotted line in the drawing, the

return guarantee pieces

553 and 653 move the movable member 19 from the car movement restriction position to the car movement allowable position. In the meantime, it always contacts the operated portion 26. As a result of the contact, the operated portion 26 of the switch 25 returns to the return position as indicated by the solid line in the figure.

Also in the fifth embodiment, the same effects and advantages as the corresponding embodiments of the first to fourth embodiments are obtained. In addition, the following advantages can be obtained in the fifth embodiment. When the movable member returns from the car movement restriction position to the car movement allowable position, even if the switch does not automatically return, the operated part of the switch is forcibly restored to the return state as the return guarantee piece moves. .

Embodiment 6 FIG.
Next, a sixth embodiment of the present invention will be described. In the present invention, the elastic force is applied to the movable member as described above. However, in the present invention, when returning the movable member from the car movement restriction position to the car movement allowable position, the present invention is not limited to utilizing the action of the extended spring to shrink. That is, in the present invention, the type of the elastic body is not limited as long as the movable member is returned from the car movement restriction position to the car movement allowable position, as long as the restoring force of the elastic force is used. As such examples, Embodiment 6 shows two examples. In the sixth embodiment, the contents other than those described below can be the same as those in any of the first to fifth embodiments described above. FIGS. 11 to 13 to be described later are examples where the contents other than those described below are the same as those in the first embodiment.

FIG. 11 is a diagram similar to FIG. 1 regarding the first example of the sixth embodiment. FIG. 12 is a diagram of the same mode as FIG. 2 regarding the first example of the sixth embodiment. An elastic body 727 that is a coil spring is connected to the movable member 19 of the car movement regulating device 715. When the movable member 19 is at the car movement allowable position as shown in FIG. 11, the elastic body 727 is in a natural length state or a state slightly compressed from the natural length. Therefore, when the movable member 19 is moved from the car movement allowable position in a direction approaching the car movement restriction position, the movable member 19 always has an elastic force in a direction to return the movable member 19 to the car movement allowable position. The elastic body 727 is provided.

FIG. 13 is a diagram similar to FIG. 1 regarding the second example of the sixth embodiment. An elastic body 827 that is a torsion spring is connected to the movable member 19 of the car movement restriction device 815. When the movable member 19 is in the car movement allowable position as shown in FIG. 13, the elastic body 827 is in the natural state or in a state slightly twisted from the natural state. The elastic body 827 is further twisted when the movable member 19 is moved in a direction approaching the car movement restriction position. Therefore, the movable member 19 is returned to the car movement allowable position by the restoring force of the elastic body 827.

Also in the sixth embodiment, the same effects and advantages as the corresponding embodiments of the first to fifth embodiments can be obtained.

Embodiment 7 FIG.
Next, a seventh embodiment of the present invention will be described. In the embodiment described above, a switch is provided on the bracket. However, the switch of the present invention is not limited to the installation mode of the above-described embodiment as long as the switch can be detected in a mode in which the movable member is in the car movement allowable position. As such examples, Embodiment 7 shows two examples. The contents of the seventh embodiment can be the same as those of any of the first to fourth and sixth embodiments described above except for the parts described below. FIG. 14 and FIG. 15 to be described later are examples in the case where the contents other than those described below are the same as those in the first embodiment.

FIG. 14 is a diagram similar to FIG. 2 regarding the first example of the seventh embodiment. In the car movement restriction device 918, a switch 928 is attached to the movable member 19. As a specific example, the switch 928 is fixed to the movable member 19 having the rotating shaft 21 at one end. The switch 928 is connected to the control device 47. When the movable member 19 is in the car movement restriction position, the switch 928 is in the activated state.

FIG. 15 is a diagram similar to FIG. 1 regarding the second example of the seventh embodiment. In the car movement restriction device 920, a switch 930 is attached to the fixing member 17. The switch 930 is connected to the control device 47. When the movable member 19 is in the car movement restriction position, the switch 930 is in an activated state.

The same effects and advantages as those of the corresponding embodiments of the first to fourth and sixth embodiments can be obtained by the seventh embodiment.

Embodiment 8 FIG.
Next, an eighth embodiment of the present invention will be described. In the embodiment described above, the fixed member is supported by an integral part of the hoistway, and the movable member is supported by the car. However, the present invention is not limited to this, and the fixed member may be supported by the car, and the movable member may be supported by an integral part of the hoistway. The eighth embodiment is an example.

FIG. 16 is a diagram showing a state where the movable member is in the car movement allowable position with respect to the car movement restriction device of the eighth embodiment. The movable member 19 of the car movement restriction device 16 according to the eighth embodiment is supported by the car guide rail 13 so as to be rotatable via a bracket. On the other hand, the fixing member 17 is supported by the car 5. In the eighth embodiment, the contents other than the portions described above can be the same as those in any of the first to seventh embodiments described above. FIG. 16 shows an example of the case similar to that of the first embodiment described above.

Also in the eighth embodiment, the same effects and advantages as the corresponding embodiments of the first to seventh embodiments can be obtained.

Embodiment 9 FIG.
In addition to the car movement restriction device, the present invention also provides an elevator including the same. FIG. 17 is a diagram showing an overview of the elevator according to the ninth embodiment. As an example, the elevator 1 is a machine room-less type rope-driven elevator. The elevator 1 includes a car 5, a rope 7, a counterweight 9, and a driving device 11 in the hoistway 3. One end of the rope 7 is connected to the car 5. The other end side of the rope 7 is connected to a counterweight 9. The rope 7 is wound around a hoisting machine constituting the driving device 11. Thereby, when the rope 7 is driven by the driving device 11, the car 5 and the counterweight 9 are raised and lowered in the opposite directions. A pair of car guide rails 13 is provided in the hoistway 3. The raising / lowering operation of the car 5 is guided by a pair of car guide rails 13. Further, the elevator 1 is provided with a car movement restriction device similar to any one of the first to eighth embodiments described above. This car movement restriction device is one of the above-described car

movement restriction devices

15, 16, 115, 215, 315, 415, 515, 615, 715, 815, 918, 920. The car movement restriction device is disposed on the upper part of the car 5. Further, the elevator 1 includes a control device 47 in the hoistway 3. The control device 47 is connected to the drive device 11 and the car movement restriction device. When the movable member 19 is in the car movement allowable position based on a signal from the car movement restricting device, the car 5 can be operated by the driving device, but when the movable member 19 is in the car movement restricting position, the control device 47. Controls the drive and prevents the car 5 from operating.

Also in the ninth embodiment, the same operational effects and advantages as the corresponding embodiments of the first to eighth embodiments can be obtained.

Although the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teachings of the present invention. It is self-explanatory.

The present invention also includes combinations of some or all of the configurations of any one or more of the embodiments described above with respect to each of the above-described embodiments.

The elevator to which the present invention is applied is not limited to a machine room-less type elevator, and is not limited to a rope type.

FIG. 17 shows a configuration in which one car movement restriction device is provided between the upper part of the car 5 and one car guide rail 13 as an example. However, the present invention is not limited to this, and two car movement restriction devices are provided in the upper part of the car 5, and each of the car movement restriction devices corresponds to a car guide corresponding to the pair of car guide rails 13. It may be applied to the rail 13.

The receiving part in the car movement restricting device is not limited to the part that defines the through-hole, but is aligned with the stopper part in the ascending / descending direction at the car movement restricting position, and contacts the stopper part as the car moves. What is necessary is just a part which can touch. Therefore, for example, a mode in which the stopper portion enters and exits between two bar-shaped portions extending in the lateral direction can be used.

Moreover, the receiving part in the car movement restriction device is not limited to a mode in which both the raising and lowering of the car can be restricted. The receiving part may be an aspect having only the upper contact part or an aspect having only the lower contact part.

1 elevator, 3 hoistway, 5 car, 15, 16, 115, 215, 315, 415, 515, 615, 715, 815, 918, 920 car movement restriction device, 17 fixed member, 19 movable member, 25, 928, 930 switch, 27, 727, 827 elastic body, 29 stopper portion, 31 receiving portion, 43, 143, 243, 343, 443 return prevention member, 47 control device, 553, 653 return guarantee piece.

Claims

A fixing member provided on one of the hoistway and the cage;
A movable member provided on the other side of the hoistway and the car and movable between a car movement restriction position and a car movement allowable position;
A switch for detecting a state in which the movable member is in the car movement allowable position;
The movable member has a stopper portion,
The fixing member has a receiving portion,
The stopper portion is in a position where it comes into contact with the receiving portion as the car moves at the car movement restriction position, and the stopper portion is received at the car movement allowable position as the car moves. In a position that does not interfere with the
The movable member is connected to an elastic body that maintains the movable member at the car movement allowable position.
Car movement restriction device.
The fixed member is provided with a return preventing member that contacts the movable member at the car movement restriction position and maintains the movable member at the car movement restriction position.
The car movement restriction device according to claim 1.
The return prevention member is configured by a plate-like member that is rotatably supported by the fixing member.
The car movement restriction device according to claim 2.
The return prevention member is composed of a plate-like member that is slidably supported by the fixing member.
The car movement restriction device according to claim 2.
The return prevention member is made of rubber,
The rubber is provided with a notch through which the stopper portion can pass.
The car movement restriction device according to claim 2.
One of the fixed member and the movable member is in contact with the other of the fixed member and the movable member when the movable member is at the cage movement restriction position, and maintains the movable member at the cage movement restriction position. A return prevention member is provided,
The return preventing member is a magnet.
The car movement restriction device according to claim 1.
The return guarantee piece is integrally supported by the movable member,
The return guarantee piece extends to a position where it can come into contact with the operated portion of the switch in a non-returned state when the movable member is in the car movement allowable position.
The car movement restriction device according to any one of claims 1 to 6.
The car provided in the hoistway;
A car movement restriction device according to any one of claims 1 to 7,
elevator.