JP5632028B2 - elevator - Google Patents

Description

  Embodiments described herein relate generally to an elevator.

  Conventionally, an elevator provided in a building moves a car to an arbitrary floor by moving the car in a hoistway. Such an elevator is provided with a counterweight so that it can be balanced when the car has a predetermined loading capacity.

JP 2006-056661 A

  By the way, in the prior art, there is room for further improvement in terms of more efficient operation, for example.

The elevator according to the embodiment includes a car, a counterweight, and an attachment / detachment device. The car can move up and down in the hoistway. The counterweight is connected to the car via a main rope, and can move up and down in the hoistway in conjunction with the car. An attachment / detachment device is provided in the hoistway, and a sub-weight can be attached to / detached from the counterweight. The attachment / detachment device includes a linear member and a claw-like member. A linear member is provided in the lower end part of the counterweight, or the upper end part of the hoistway along the raising / lowering direction of the counterweight. The claw-like member is provided at a tip on the lower side in the vertical direction of the linear member, and can rotate integrally with the linear member around a rotation axis along the ascending / descending direction. The claw-like member can rotate between the holding position and the release position by rotating relative to the sub-weight while the linear member is inserted into the hole formed in the sub-weight. is there. The holding position is a position where the claw-like member is caught by the edge of the hole and holds the sub weight. The release position is a position where the catch between the claw-like member and the edge of the hole is eliminated and the sub-weight is released. The sub-weight is tapered at the edge of the hole, the claw-shaped member is formed into a tapered shape by forming a conical portion, and the claw-shaped member is inserted into the hole. The claw-like member is guided to the hole side by the taper and the conical portion.

FIG. 1 is a block diagram illustrating a schematic configuration example of an elevator according to the first embodiment. FIG. 2 is a block diagram illustrating a schematic configuration example of the elevator according to the first embodiment. FIG. 3 is a schematic perspective view illustrating a schematic configuration example of the attachment / detachment device according to the first embodiment. FIG. 4 is a side view of the sub weight and the counter weight according to the first embodiment. FIG. 5 is a plan view of the subweight according to the first embodiment. FIG. 6 is a plan view of the counterweight according to the first embodiment. FIG. 7 is a partial cross-sectional view including a claw-like member of the attachment / detachment device according to the first embodiment. FIG. 8 is a partial cross-sectional view including a claw-like member of the attachment / detachment device according to the first embodiment. FIG. 9 is a partial cross-sectional view including a claw-like member of the attachment / detachment device according to the first embodiment. FIG. 10 is a schematic diagram illustrating a schematic configuration example of an elevator attachment / detachment device according to the second embodiment. FIG. 11 is a partial cross-sectional view of the elevator detaching apparatus according to the second embodiment. FIG. 12 is a partial cross-sectional view of the elevator detaching apparatus according to the second embodiment. FIG. 13 is a schematic diagram illustrating a schematic configuration example of an elevator attachment / detachment device according to the third embodiment. FIG. 14 is a schematic diagram illustrating a holding position of the elevator attachment / detachment device according to the third embodiment. FIG. 15 is a schematic diagram illustrating a release position of the elevator attachment / detachment device according to the third embodiment. FIG. 16 is a schematic diagram illustrating a schematic configuration example of an elevator attachment / detachment device according to the fourth embodiment. FIG. 17 is a schematic diagram illustrating a schematic configuration example of an elevator attachment / detachment device according to the fourth embodiment. FIG. 18 is a schematic diagram illustrating a schematic configuration example of an elevator attachment / detachment device according to the fifth embodiment. FIG. 19 is a schematic diagram illustrating a schematic configuration example of an elevator attachment / detachment device according to the fifth embodiment. FIG. 20 is a schematic diagram illustrating a schematic configuration example of an elevator attachment / detachment device according to the sixth embodiment. FIG. 21 is a schematic diagram illustrating a schematic configuration example of an elevator attachment / detachment device according to the sixth embodiment. FIG. 22 is a schematic diagram illustrating a schematic configuration example of an elevator attachment / detachment device according to the seventh embodiment. FIG. 23 is a schematic diagram illustrating a schematic configuration example of an elevator attachment / detachment device according to the seventh embodiment.

[Embodiment 1]
1 and 2 are block diagrams illustrating a schematic configuration example of an elevator according to the first embodiment. FIG. 3 is a schematic perspective view illustrating a schematic configuration example of the attachment / detachment device according to the first embodiment. FIG. 4 is a side view of the sub weight and the counter weight according to the first embodiment. FIG. 5 is a plan view of the subweight according to the first embodiment. FIG. 6 is a plan view of the counterweight according to the first embodiment. 7, 8, and 9 are partial cross-sectional views including the claw-like member of the attachment / detachment device according to the first embodiment.

  The elevator 1 according to the present embodiment is a so-called flexible counterweight-type weight variable elevator that can vary the weight of a counterweight (main weight) 4 that moves up and down in conjunction with the car 3. The loading capacity of the elevator car 3 changes depending on the number of passengers. The number of users of the elevator 1 tends to change according to, for example, date and time. The elevator 1 consumes wasted power because the load of the hoisting machine 10 changes when the car 3 becomes extremely lighter or heavier than the counterweight 4 in accordance with changes in the load. There is a risk. Therefore, the elevator 1 according to the present embodiment can perform more efficient operation by changing the weight of the counterweight 4 according to the situation.

  Specifically, as shown in FIG. 1, the elevator 1 according to the present embodiment is a so-called main rope 5 in which a car 3 that can be raised and lowered in a hoistway 2 and a counterweight 4 as a counterweight are connected. It is a vine type elevator. The elevator 1 includes a hoistway 2, a car 3 and a counterweight 4 as a lifting body, a main rope 5, a lift driving unit 6, a landing 7, and an elevator control panel as an elevator control device (hereinafter, particularly, Unless otherwise indicated, it is simply referred to as a “control panel”). The elevator 1 is capable of moving to a landing 7 on an arbitrary destination floor when the driving of each part is controlled by the control panel 8 and the car 3 moves up and down in the hoistway 2.

  The hoistway 2 is provided along the vertical direction of the building. The hoistway 2 is provided over a plurality of floors in the building. The elevator drive unit 6 and the control panel 8 are illustrated as being provided in the machine room 9 and the like above the hoistway 2, for example. The elevator 1 may be a so-called machine room-less elevator in which the machine room 9 is not provided and the elevating drive unit 6 and the control panel 8 are provided in the space above the hoistway 2. The car 3 is a structure for a user to get on or load a luggage. The car 3 is disposed in the hoistway 2 and can be raised and lowered along the guide rail and the like in the hoistway 2. The counterweight 4 is connected to the car 3 via the main rope 5 and arranged in the hoistway 2. The counterweight 4 can move up and down the hoistway 2 along a guide rail or the like in conjunction with the car 3. The main rope 5 connects the car 3 and the counterweight 4. Here, the main rope 5 is hung on the main sheave 11 and the solar sheave 12 of the hoisting machine 10 of the hoisting drive unit 6 provided at the upper part of the hoistway 2, and the car 3 is connected to one end and the other end Is connected to the counter weight 4. That is, the car 3 and the counterweight 4 are connected via the main rope 5 and can be moved up and down in opposite directions in conjunction with each other. The raising / lowering drive part 6 is comprised by the hoisting machine 10 etc., for example, The drive is controlled by the control panel 8. FIG. In the hoisting machine 10, the main sheave 11 connected to the electric motor 13 is driven to rotate by driving an electric motor (motor) 13 that generates power for moving the car 3. And the hoisting machine 10 electrically winds up the main rope 5 using the frictional force produced between the main sheave 11 and the main rope 5. The landing 7 is provided on each elevator stop floor where the car 3 can be landed, and is a place for the user to get on and off the car 3 and load and unload luggage on the car 3. .

  The control panel 8 includes a CPU (Central Processing Unit), a ROM, a RAM, a backup RAM, a microcomputer having an input / output port device, and a drive circuit that are connected to each other by a bidirectional common bus of a normal type. . A ROM (Read Only Memory) stores a predetermined control program and the like in advance. A RAM (Random Access Memory) temporarily stores a calculation result of the CPU. The backup RAM stores information such as prepared map data and elevator 1 specifications.

  The control panel 8 is electrically connected to various parts of the elevator 1, such as various sensors, detectors, and the electric motor 13 of the hoisting machine 10, and comprehensively controls the operation of each part. For example, the control panel 8 controls the driving of the hoisting machine 10 in response to an operation input from the user to the car operation panel 14 and the landing operation panel 15, and designates the car 3 according to the call registration. Move to the floor.

  In the elevator 1 configured as described above, when a car call operation is performed by a user via the car operation panel 14, the landing operation panel 15, or the like, the car operation panel 14 or the landing operation panel 15 controls the control panel 8. The call registration signal is input to. In the elevator 1, the control panel 8 performs call registration of the car 3 in response to the call registration signal. Based on this call registration, outputs from various sensors and detectors, the current movement direction (lifting direction) of the car 3, etc., the control panel 8 makes each call while the car 3 moves reasonably. The landing order of the car 3 is determined so as to respond. Then, the control panel 8 drives and controls the hoisting machine 10 of the elevating drive unit 6 based on the determined landing order and moves the car 3 to the target floor. As a result, the elevator 1 moves the elevator car 3 up and down in the vertical direction in the hoistway 2 and moves to a landing 7 on an arbitrary destination floor. When the elevator 1 detects that the car 3 has landed on the landing 7 on the destination floor and has landed at a predetermined landing position, the control panel 8 then opens the door of the car 3. . As a result, a user waiting at the landing 7 can get into the car 3, and a user inside the car 3 can get off at the landing 7.

  And the elevator 1 of this embodiment is further equipped with the attachment / detachment apparatus 50, and the said attachment / detachment apparatus 50 performs more efficient operation by setting it as the structure which can attach or detach the subweight 60 with respect to the counterweight 4. FIG. To be able to.

  The counterweight 4 (in a state where the subweight 60 is not added) is basically when the car 3 has a predetermined load (for example, about 0 to 1/2 with respect to the maximum load). In addition, the weight is set so that the car 3 and the counterweight 4 are balanced. When the sub-weight 60 is not used for the car 3 and the counterweight 4, typically, the counterweight 4 side tends to be heavy when there are no passengers in the car 3, and the car 3 side tends to be heavy when the passengers are full. It is in.

  The attachment / detachment device 50 is a flexible counterweight device provided in the hoistway 2 and capable of attaching / detaching the subweight 60 to / from the counterweight 4. As shown in FIG. 1, the detachable device 50 may be an upper loading / unloading system provided in the upper part (near the ceiling) in the hoistway 2, or the lower part (pit) in the hoistway 2 as shown in FIG. The lower side unloading method provided in the vicinity) may be used. The attachment / detachment device 50 can attach / detach the sub weight 60 to / from the counter weight 4 in a state where the counter weight 4 is at a predetermined attachment / detachment position. In the upper loading / unloading system shown in FIG. 1, the attachment / detachment device 50 is, for example, a state in which the counterweight 4 is located at the highest point in the hoistway 2 as the attachment / detachment position (the state in which the car 3 is located at the lowest point in the hoistway 2). ) To attach and detach the sub weight 60. In the lower loading / unloading system shown in FIG. 2, for example, the attachment / detachment device 50 is in a state where the counterweight 4 is located at the lowest point in the hoistway 2 as the attachment / detachment position (the car 3 is at the highest point in the hoistway 2. The subweight 60 is attached and detached in the position).

  The sub weight 60 is a rectangular plate-like heavy object (for example, lead), and is added to the counter weight 4 so as to move up and down arbitrarily in conjunction with the up and down of the counter weight 4. That is, the sub weight 60 changes the weight of the hoisting machine 10 on the counter weight 4 side. In the following description, it is assumed that a plurality of sub weights 60 are arranged, but one sub weight 60 may be provided. When a plurality of sub weights 60 are provided, the plurality of sub weights 60 may have the same weight or different weights.

  Hereinafter, with reference to FIGS. 3 to 9, the attachment / detachment device 50 of the present embodiment will be described more specifically.

  As shown in FIG. 3, the attachment / detachment device 50 of this embodiment includes a linear member 51, a claw-like member 52, and an actuator 53.

  The linear member 51 is provided at the lower end of the counterweight 4 or the upper end 2 a of the hoistway 2. FIG. 3 illustrates the case of the upper loading / unloading method (see FIG. 1). In this case, the linear member 51 is provided on the upper end (for example, the ceiling) 2a of the hoistway 2. The linear member 51 is a rod-like member having a predetermined rigidity or more, and is provided along the raising / lowering direction of the car 3 and the counterweight 4. Here, the two linear members 51 are provided at intervals in the horizontal direction (direction intersecting the ascending / descending direction (vertical direction)). Each of the two linear members 51 has an upper end in the vertical direction connected to an actuator 53 provided on the upper end 2a side of the hoistway 2, and a claw-like member 52 at the lower end in the vertical direction. Connected.

  The claw-like member 52 is provided at the tip of each linear member 51 on the lower side in the vertical direction. The claw-like member 52 can rotate integrally with the linear member 51 around the rotation axis X1 along the ascending / descending direction. The claw-like member 52 includes a main body 52a formed in a disk shape and a protrusion 52b that protrudes horizontally from the main body 52a. The protrusions 52b are provided as a pair on each claw-like member 52, respectively. The pair of protrusions 52b are formed at symmetrical positions so as to substantially face each other in the horizontal direction.

  The actuator 53 is a device that generates power for integrally rotating the linear member 51 and the claw-shaped member 52 around the rotation axis X1. The actuator 53 includes a power generation source such as an electric motor and a solenoid. The actuator 53 transmits the power generated by the power generation source to the linear member 51 through a transmission member such as a gear. Thereby, the actuator 53 rotates the linear member 51 and the claw-shaped member 52. The actuator 53 is electrically connected to the control panel 8, and drive control is performed by electric power supplied via the control panel 8.

  Here, the elevator 1 of the present embodiment includes three rectangular plate-like sub weights 60, and the counter weight 4 also has a plurality of rectangular plate-like weights 4a (here, three of them) that are substantially the same as the sub weight 60. Is shown). The counterweight 4 is configured by laminating a plurality of weights 4a along the ascending / descending direction (vertical direction) and connecting them with a frame. Each subweight 60 functions as a heavy load for loading and unloading added to the counterweight 4. On the other hand, each weight 4a of the counterweight 4 functions as a normal heavy object.

  Each subweight 60 is formed with a hole 61 as shown in FIGS. 3, 4, and 5. The hole 61 is formed so as to penetrate the subweight 60 in the ascending / descending direction. Two holes 61 are formed in each subweight 60 corresponding to the two linear members 51 and the claw-shaped members 52, respectively. Each hole 61 is a position facing each linear member 51 and claw-shaped member 52 along the ascending / descending direction in a state where each subweight 60 is disposed at a predetermined position in the hoistway 2. And are formed at intervals in the horizontal direction.

  The hole portion 61 of the present embodiment includes a circular hole 61a formed in a circular shape and a passage allowable hole 61b communicating with the circular hole 61a. A pair of passage-permitting holes 61 b are provided in each hole 61. The pair of passage allowance holes 61b are formed at symmetrical positions so as to be substantially opposed to the horizontal direction. The circular hole 61 a is formed to be slightly larger than the main body portion 52 a of the claw-like member 52. The pair of passage allowance holes 61 b are formed to be slightly larger than the protrusions 52 b of the claw-like member 52. Therefore, in the above-described claw-like member 52, the main body portion 52a can pass through the circular hole 61a of the hole portion 61 along the ascending / descending direction, and each protrusion 52b passes through the passage allowable hole 61b of the hole portion 61 along the ascending / descending direction. Can pass through.

  On the other hand, each weight 4a of the counterweight 4 is formed with a hole 4b as shown in FIGS. The hole 4b is formed so as to penetrate the weight 4a in the up and down direction. Two holes 4b are formed corresponding to the two linear members 51 and the claw-shaped members 52 in each weight 4a. Each hole 4b is located at a position facing each linear member 51 and claw-shaped member 52 along the ascending / descending direction in a state in which each weight 4a is disposed at a predetermined position in the hoistway 2 in each weight 4a. It is formed at intervals in the horizontal direction. The hole 4b is formed in a perfect circle shape. The hole 4b is formed to be slightly larger than the rotation locus (circular shape) of the protrusion 52b when the claw-like member 52 rotates around the rotation axis X1. Therefore, the above-described claw-like member 52 can pass through the hole 4b along the ascending / descending direction, and the protrusion 52b does not get caught on any edge of the hole 4b.

  In addition, as shown in FIGS. 4, 7, and the like, the sub-weight 60 of the present embodiment has a rotation allowable space 62 formed on the lower surface in the vertical direction. Each rotation allowance space portion 62 allows the claw-like member 52 to rotate, and is formed on the lower surface of the subweight 60 in the vertical direction so as to communicate with the hole portion 61. The rotation allowable space 62 of this embodiment is formed in a perfect circle shape. Here, the rotation permissible space 62 is formed slightly larger than the rotation locus (circular shape) of the protrusion 52b when the claw-like member 52 rotates about the rotation axis X1. Thereby, each rotation permissible space 62 can allow the claw-like member 52 to rotate about the rotation axis X1.

  Then, the claw-like member 52 is rotated relative to the subweight 60 by the power generated by the actuator 53 in a state where the linear member 51 is inserted into the hole 61, thereby holding the position illustrated in FIG. 7. And the release position illustrated in FIG.

  As shown in FIG. 7, the claw-like member 52 can be hooked on the edge of the hole 61 and hold the sub weight 60 at the holding position. That is, the claw-like member 52 is in a state having a predetermined allowance with respect to the edge of the hole 61 at the holding position. More specifically, the claw-like member 52 is in the holding position so that the vertical upper surface of each projection 52b abuts on and engages with the vertical lower surface of the edge of the hole 61 so that each projection The sub weight 60 can be held on 52b.

  On the other hand, as shown in FIG. 8, the claw-like member 52 can release the subweight 60 at the release position by eliminating the catch with the edge of the hole 61. More specifically, in the release position, the claw-like member 52 allows the main body portion 52a to pass through the circular hole 61a of the hole portion 61 along the ascending / descending direction, and each projection portion 52b has the hole portion 61 in the release position. It is possible to pass through each passage permissible hole 61b in the ascending / descending direction.

  As shown in FIG. 4, the plurality of sub weights 60 according to the present embodiment are lifted or lowered while being held by the claw-like member 52 or released from the claw-like member 52 and added to the counterweight 4. It arrange | positions so that it may be in the state laminated | stacked on the direction (vertical direction). Each subweight 60 has a convex portion 63a formed on one surface of the opposing surfaces facing each other in a stacked state, and a concave portion 63b formed on the other surface. Here, the sub-weight 60 has a convex portion 63a formed on the upper surface in the vertical direction. Further, all the sub weights 60 are formed with a recess 63b on the lower surface in the vertical direction. As shown in FIG. 5, the convex portion 63 a and the concave portion 63 b are formed substantially at the center between the pair of hole portions 61 in the subweight 60. And each subweight 60 fits the convex part 63a in the recessed part 63b in the laminated state. Further, here, in the counterweight 4, the convex portion 63a is also formed on the upper surface in the vertical direction in the uppermost weight 4a in the vertical direction. In the elevator 1 according to this embodiment, when the sub weight 60 is loaded on the counter weight 4, the sub weight 60 is added to the upper side of the counter weight 4 in the vertical direction. At this time, the convex portion 63a is fitted into the concave portion 63b of the weight 4a and the sub weight 60 in the uppermost vertical direction of the counterweight 4.

  In the elevator 1 configured as described above, the claw-like member 52 of the attachment / detachment device 50 rotates between the holding position and the release position in a state where the counter weight 4 is at a predetermined attachment / detachment position. Thus, the sub weight 60 can be attached and detached. When the control panel 8 attaches / detaches the sub weight 60 to / from the counter weight 4 according to the situation, the control weight 8 moves the counter weight 4 to the attaching / detaching position, here, to the vicinity of the highest point in the hoistway 2 and at the attaching / detaching position. The sub weight 60 is attached and detached.

  For example, when the subweight 60 added to the counterweight 4 is zero, the attachment / detachment device 50 is such that the claw-like member 52 is positioned at the holding position with respect to the subweight 60, and all the claw-like members 52 are The sub-weight 60 is held. In this state, the control panel 8 moves the counterweight 4 to the attaching / detaching position, so that the counterweight 4 is positioned on the lower side of the subweight 60 in the vertical direction. At this time, the convex portion 63a formed on the uppermost weight 4a in the vertical direction of the counterweight 4 is fitted to the concave portion 63b of the lowermost subweight 60 in the vertical direction.

  In this state, the control panel 8 controls the driving of the actuator 53 to rotate each claw-like member 52 relative to the subweight 60 and to the release position. At this time, each claw-like member 52 is allowed to rotate around the rotation axis X <b> 1 in the hole 4 b of the weight 4 a in the uppermost vertical direction of the counterweight 4. Thereby, the attachment / detachment device 50 can release the sub weight 60 from the claw-like member 52 and can load the sub weight 60 on the upper side in the vertical direction of the counterweight 4.

  Thereafter, the control panel 8 moves the counter weight 4 relative to the linear member 51 and the claw-shaped member 52 according to the thickness of the necessary number of sub-weights 60 according to the situation. Here, the control panel 8 moves the counterweight 4 in the up-and-down direction, for example. Then, the control panel 8 stops in a state where each claw-shaped member 52 is located in the rotation allowable space 62 at the boundary between the subweight 60 loaded and the subweight 60 not loaded. In this state, the control panel 8 again controls the driving of the actuator 53 to rotate each claw-like member 52 relative to the subweight 60 and to the holding position. At this time, each claw-like member 52 is allowed to rotate around the rotation axis X <b> 1 within the rotation-permitted space 62. Accordingly, the detachable device 50 can hold the unnecessary subweight 60 on the claw-like member 52 after loading the necessary number of subweights 60 on the counterweight 4. As a result, the elevator 1 can attach the necessary number of subweights 60 to the counterweight 4 by the attaching / detaching device 50.

  At this time, the weight 4a at the uppermost stage in the vertical direction of the counterweight 4 and the respective subweights 60 function as a positioning / load collapse prevention mechanism by fitting the convex portions 63a and the concave portions 63b facing each other. That is, each of the weights 4a and the subweights 60 in the uppermost vertical direction is properly fixed by fitting the convex portions 63a and the concave portions 63b on the surfaces facing each other. Thereby, the elevator 1 can prevent the subweight 60 from collapsing, and is positioned so that the horizontal position of each hole 61 is an appropriate position.

  Further, when the sub weight 60 is lowered from the counter weight 4, the control panel 8 moves the counter weight 4 to the attachment / detachment position. Then, the control panel 8 controls the drive of the actuator 53 to rotate each claw-like member 52 relative to the subweight 60 and to the release position. As a result, the attachment / detachment device 50 releases the subweight 60 from the claw-like member 52, and temporarily places the subweight 60 on the counterweight 4 in the vertical direction. Thereafter, the control panel 8 relatively moves the counterweight 4 according to the thickness of the unnecessary number of subweights 60 depending on the situation, and the subweight 60 on which each claw-like member 52 is loaded and the subweight 60 that is not loaded are placed. It stops in a state where it is located in the rotation allowable space 62 at the boundary. At this time, as described above, the attachment / detachment device 50 positions the sub weight 60 so that the horizontal position of each hole 61 becomes an appropriate position by the convex portion 63a and the concave portion 63b. The claw-like member 52 and the linear member 51 can be easily inserted into the hole 61 of the subweight 60 already loaded. In this state, the control panel 8 again controls the driving of the actuator 53 to rotate each claw-like member 52 relative to the subweight 60 and to the holding position. As a result, the elevator 1 can transfer an unnecessary subweight 60 from the counterweight 4 onto the claw-like member 52 by the attaching / detaching device 50.

  Then, the control panel 8 attaches / detaches the sub weight 60 to / from the counter weight 4 by the attaching / detaching device 50 as described above according to the use situation of the elevator 1, for example, the loading load or the use time zone of the car 3. Thus, the weight of the counterweight 4 can be made variable. Thereby, the elevator 1 can make the weight balance of the weight on the car 3 side of the hoisting machine 10 and the weight on the counterweight 4 side appropriate according to the use situation. As a result, the elevator 1 makes the weight of the counterweight 4 less unbalanced between the weight on the car 3 side of the hoisting machine 10 and the weight on the counterweight 4 side in accordance with the usage status of the elevator 1. Can be changed.

  For example, in a situation where the number of passengers in the car 3 is relatively large and the car 3 is extremely heavy with respect to the counterweight 4, the elevator 1 is attached to the counterweight 4 by the attaching / detaching device 50. 60 is loaded and the weight of the counterweight 4 is increased. On the other hand, for example, in the situation where the number of passengers in the car 3 is relatively small and the car 3 is extremely light with respect to the counterweight 4, the elevator 1 is removed from the counterweight 4 by the attachment / detachment device 50. The sub weight 60 is lowered and the weight of the counter weight 4 is reduced. In addition, the elevator 1 is preliminarily attached to the counterweight 4 before a time zone in which the load on the car 3 is expected to be relatively large, for example, when going to work in an office building, lunch, or leaving the office. The sub weight 60 may be added. Similarly, the elevator 1 is preloaded from the counterweight 4 in advance, for example, before the time when the load on the car 3 is expected to be relatively small, for example, when working in an office building. The weight 60 may be lowered. Thereby, the elevator 1 can reduce the load of the hoisting machine 10 due to weight imbalance, and the energy consumption of the elevator 1 can be reduced. That is, the elevator 1 can be operated with an optimal weight balance by changing the weight of the counterweight 4 according to the load on the car 3, the number of passengers, the time zone, etc., so that energy efficiency is improved and efficiency is improved. Operation can be performed.

  In the case of the lower loading / unloading method (see FIG. 2), the attaching / detaching device 50 described above is configured such that the linear member 51 is provided at the lower end portion of the counterweight 4 and can be moved up and down together with the counterweight 4. Is done. And the nail | claw-shaped member 52 is each provided in the front-end | tip of the vertical direction lower side of each linear member 51, respectively. In this case, the actuator 53 is provided on the counterweight 4. And when the control panel 8 attaches / detaches the sub weight 60 to / from the counter weight 4 according to the situation, the control weight 8 moves the counter weight 4 to the attaching / detaching position, here, to the vicinity of the lowest point in the hoistway 2, and the attaching / detaching position. Attach and remove the subweight 60. In this case, the sub weight 60 is stacked and arranged in a region located in the lower part (for example, the floor surface) in the hoistway 2 and below the counter weight 4 in the vertical direction. The weight 4a at the lowest level in the vertical direction of the counterweight 4 has a concave portion 63b formed on the lower surface in the vertical direction, and the sub weight 60 at the uppermost vertical direction has a convex portion 63a on the upper surface in the vertical direction. The

  In this case, for example, when the number of sub weights 60 added to the counterweight 4 is zero, the attachment / detachment device 50 has the claw-like member 52 located at the release position with respect to the sub weight 60, and all the sub weights The weight 60 is lowered from the counterweight 4. In this state, the control panel 8 moves the counter weight 4 to the attachment / detachment position, so that the counter weight 4 is positioned above the sub weight 60 in the vertical direction. At this time, as described above, the attachment / detachment device 50 is positioned so that the horizontal position of each hole 61 becomes an appropriate position by the convex portion 63a and the concave portion 63b. For this reason, the attachment / detachment device 50 can facilitate the insertion of the claw-like member 52 and the linear member 51 into the hole 61 of the sub-weight 60 stacked in the lower part in the hoistway 2. Further, the convex portion 63 a formed on the uppermost sub-weight 60 in the vertical direction is engaged with the concave portion 63 b of the lowermost weight 4 a in the vertical direction of the counterweight 4.

  Then, the control panel 8 controls the drive of the actuator 53 and relatively moves the counter weight 4 according to the thickness of the required number of sub-weights 60 according to the situation. It stops in the state located in 62. In this state, the control panel 8 controls the drive of the actuator 53 to rotate each claw-like member 52 relative to the subweight 60 and to the holding position. Thereby, the attachment / detachment device 50 holds the necessary number of sub-weights 60 on the claw-like member 52 and loads them on the counterweight 4, and then can place unnecessary sub-weights 60 in the lower part of the hoistway 2. . As a result, the elevator 1 can attach the necessary number of subweights 60 to the counterweight 4 by the attaching / detaching device 50.

  Further, when the sub weight 60 is lowered from the counter weight 4, the control panel 8 moves the counter weight 4 to the attachment / detachment position. Then, the control panel 8 controls the drive of the actuator 53 to rotate each claw-like member 52 relative to the subweight 60 and to the release position. As a result, the attachment / detachment device 50 can release the subweight 60 from the claw-like member 52, release the subweight 60 loaded on the counterweight 4, and place it in the lower part in the hoistway 2. Thereafter, the control panel 8 relatively moves the counter weight 4 according to the thickness of the unnecessary number of sub-weights 60 according to the situation, and stops in a state where each claw-like member 52 is positioned in the rotation allowable space 62. To do. In this state, the control panel 8 again controls the driving of the actuator 53 to rotate each claw-like member 52 relative to the subweight 60 and to the holding position. As a result, the elevator 1 can release the unnecessary subweight 60 from the counterweight 4 by the attaching / detaching device 50.

  The elevator 1 described above includes a passenger car 3, a counterweight 4, and an attachment / detachment device 50. The car 3 can move up and down in the hoistway 2. The counterweight 4 is connected to the car 3 via the main rope 5 and can move up and down in the hoistway 2 in conjunction with the car 3. The attaching / detaching device 50 is provided in the hoistway 2, and the sub weight 60 can be attached to and detached from the counterweight 4. The attachment / detachment device 50 includes a linear member 51 and a claw-like member 52. The linear member 51 is provided at the lower end portion of the counterweight 4 or the upper end portion of the hoistway 2 along the ascending / descending direction of the counterweight 4. The claw-like member 52 is provided at the tip of the linear member 51 on the lower side in the vertical direction, and can rotate integrally with the linear member 51 around the rotation axis X1 along the ascending / descending direction. The claw-like member 52 rotates between the holding position and the release position by rotating relative to the subweight 60 in a state where the linear member 51 is inserted into the hole 61 formed in the subweight 60. Is possible. The holding position is a position where the claw-like member 52 is caught on the edge of the hole 61 and holds the subweight 60. The release position is a position where the catch between the claw-like member 52 and the edge of the hole 61 is eliminated and the subweight 60 is released. Therefore, the elevator 1 can be operated with an optimum weight balance by changing the weight of the counterweight 4 by the attaching / detaching device 50 according to the use situation and the like, and thus can be operated efficiently.

  In the above description, when the necessary number or unnecessary number of sub-weights 60 are attached or detached, the control panel 8 attaches the counter weight 4 to the linear member 51 according to the required number of thicknesses. Although it demonstrated as what is relatively moved with respect to the nail | claw-shaped member 52, it is not restricted to this. The attachment / detachment device 50 may be configured such that the linear member 51 and the claw-like member 52 move relative to each other in the ascending / descending direction.

  In the above description, the hole 61 has been described as including the circular hole 61a and the passage-permitting hole 61b. However, the present invention is not limited thereto, and the hole 61 may be elliptical or rectangular as a whole. A rhombus may be sufficient. That is, in the hole 61, the claw-like member 52 is caught at the edge of the hole 61 at the holding position in a state where the linear member 51 is inserted, and the hook with the edge of the hole 61 is eliminated at the release position. It may be formed in a size and shape.

  Further, as shown in FIG. 9, the subweight 60 described above may be formed with a taper 61 c at the edge of the hole 61, and the claw-like member 52 may be formed in a tapered shape. The taper 61c shown in FIG. 9 is formed on the surface on the upper side in the vertical direction of the subweight 60, and is formed as an inclined surface in which the opening of the hole 61 expands toward the upper side in the vertical direction. The claw-like member 52 shown in FIG. 9 has a conical (for example, conical) conical portion 52c that protrudes downward in the vertical direction on the lower surface in the vertical direction. It has a tapering shape toward. Thereby, the elevator 1 can guide the claw-shaped member 52 to the hole 61 side by the taper 61c and the cone-shaped portion 52c when the claw-shaped member 52 is inserted into the hole 61. The claw-like member 52 can be easily inserted into the hole 61.

[Embodiment 2]
FIG. 10 is a schematic diagram illustrating a schematic configuration example of an elevator attachment / detachment device according to the second embodiment. 11 and 12 are partial cross-sectional views of the elevator attachment / detachment device according to the second embodiment. The elevator according to the second embodiment is different from the first embodiment in the configuration of the detachable device. In addition, about the structure, operation | movement, and effect which are common in embodiment mentioned above, the overlapping description is abbreviate | omitted as much as possible. Moreover, about each structure of an elevator, FIG. 1, FIG. 2 is suitably referred (this is the same also in embodiment described below).

  As shown in FIGS. 10, 11, and 12, the elevator 201 according to the present embodiment includes an attachment / detachment device 250. The attachment / detachment device 250 according to the present embodiment is provided in the hoistway 2 and attaches / detaches the sub weight 60 to / from the counterweight 4 using electromagnetic force. As shown in FIG. 1, the detachable device 250 may be an upper loading / unloading system provided in the upper part (near the ceiling) in the hoistway 2, or the lower part (pit) in the hoistway 2 as shown in FIG. 2. The lower side unloading method provided in the vicinity) may be used. FIG. 10 illustrates the case of the upper unloading method.

  Specifically, the attaching / detaching device 250 includes a counter frame 251, a sub-weight holding frame 252, a first pin 253 as a counter frame protruding member, a second pin 254 as a holding frame protruding member, and a link mechanism. 255, an urging member 256, and a suction device 257.

  The counter frame 251 is fixed to the counter weight 4 side and can be lifted and lowered together with the counter weight 4. The counter frame 251 is provided as a pair so as to face each other in the long side direction of each weight 4 a of the counter weight 4. Each counter frame 251 is formed in a rod shape along the ascending / descending direction. Each counter frame 251 has a substantially U-shaped cross section (see FIGS. 11 and 12) along the horizontal direction. That is, each counter frame 251 is formed in a columnar shape with one surface opened. Each counter frame 251 is arranged such that the opening faces the weight 4a side with respect to the horizontal direction. Here, each counter frame 251 also serves as a frame 4c that connects a plurality of stacked weights 4a.

  Each counter frame 251 is formed with a counter frame engaging recess 251a. A plurality of counter frame engaging recesses 251 a are provided in each counter frame 251 according to the number of sub-weights 60 that can be added. Each counter frame engaging recess 251a is formed on a surface of each counter frame 251 facing the end surface in the long side direction of the subweight 60 at the attachment / detachment position. The plurality of counter frame engaging recesses 251a are formed at equal intervals along the ascending / descending direction. Here, each counter frame engagement recessed part 251a penetrates the counter frame 251 along the long side direction of the subweight 60 etc., and is formed in a substantially circular shape.

  The subweight holding frame 252 is for holding the subweight 60 lowered from the counterweight 4 and is provided in the vicinity of the attachment / detachment position in the hoistway 2. The sub-weight holding frame 252 is provided to be movable relative to the counterweight 4 in the up / down direction. The sub-weight holding frame 252 may be configured to move relative to the counter weight 4 by moving itself by various driving devices, or after being fixed in the hoistway 2, the counter weight 4 May be configured to move relative to the counterweight 4 by moving. The sub weight holding frame 252 is provided in a pair so as to face each other with respect to the short side direction of the sub weight 60. Each subweight holding frame 252 is formed in a plate shape and is connected to each other by a connecting member to form a frame. FIG. 10 illustrates the case of the upper loading / unloading method as described above. In this case, the sub-weight holding frame 252 is positioned above the counter weight 4 in the vertical direction with the counter weight 4 in the attachment / detachment position. To do. In the case of the lower loading / unloading method, the sub-weight holding frame 252 is positioned on the lower side in the vertical direction of the counter weight 4 with the counter weight 4 in the attachment / detachment position.

  Each sub-weight holding frame 252 is formed with a holding frame engaging recess 252a. A plurality of holding frame engaging recesses 252a are provided in each subweight holding frame 252 according to the number of subweights 60 that can be held. Each holding frame engaging recess 252 a is formed on a surface of each subweight holding frame 252 that faces the end surface in the short side direction of the subweight 60 while holding the subweight 60. A pair of holding frame engaging recesses 252a are provided corresponding to one subweight 60 at a predetermined interval in the horizontal direction. A plurality of pairs of holding frame engaging recesses 252a are provided according to the number of sub-weights 60 that can be held. The plurality of pairs of holding frame engaging recesses 252a are formed at equal intervals along the ascending / descending direction according to the thickness of the subweight 60. Here, each holding frame engaging recess 252 a is formed in a substantially circular shape so as to penetrate the sub weight holding frame 252 along the short side direction of the sub weight 60.

  The first pin 253 is provided on the subweight 60 and is movable between an engagement position and a release position. The engagement position of the first pin 253 is a position where the first pin 253 protrudes from the sub weight 60 and can be engaged with the counter frame engagement recess 251a of the counter frame 251 in a state where the counter weight 4 is in the attachment / detachment position. (See FIG. 11). On the other hand, the release position of the first pin 253 is a position where the first pin 253 is retracted from the counter frame engagement recess 251a and is disengaged from the counter frame engagement recess 251a and is accommodated on the subweight 60 side. (See FIG. 12). A total of two first pins 253 of this embodiment are provided, one on each end face in the long side direction of each subweight 60. The first pin 253 is slidable between the engagement position and the release position along the long side direction of the subweight 60.

  The second pin 254 is provided on the subweight 60 and is movable between an engagement position and a release position. The engagement position of the second pin 254 is such that when the sub weight 60 is held by the sub weight holding frame 252, the second pin 254 protrudes from the sub weight 60 and the holding frame engaging recess of the sub weight holding frame 252 is engaged. It is a position which can be engaged with 252a (refer FIG. 12). On the other hand, the release position of the second pin 254 is a position where the second pin 254 is retracted from the holding frame engaging recess 252a and is disengaged from the holding frame engaging recess 252a and accommodated on the subweight 60 side. (See FIG. 11). In the present embodiment, a total of four second pins 254 are provided, two at each end face in the short side direction of each subweight 60. The second pin 254 is slidable between the engagement position and the release position along the short side direction of the subweight 60. That is, the second pin 254 can move in a direction that intersects the moving direction of the first pin 253. The two second pins 254 provided on each end face in the short side direction of each subweight 60 are provided in a pair corresponding to each holding frame engaging recess 252a with a predetermined interval in the horizontal direction. The second pin 254 is made of a metal material that can be attracted by electromagnetic force.

  The link mechanism 255 connects the first pin 253 and the second pin 254, slides between the engagement position and the release position of the first pin 253, and the engagement position and the release position of the second pin 254. The slide movement between the two is linked. The link mechanism 255 is provided in each subweight 60 and connects one first pin 253 and two second pins 254 on one end side in the long side direction. That is, here, two link mechanisms 255 are provided for each subweight 60. Each link mechanism 255 includes a first pin 253 on one end face in the long side direction of the subweight 60, a second pin 254 on one end face in the short side direction, and a second pin 254 on the other end face in the short side direction. And Each link mechanism 255 connects the one first pin 253 and the two second pins 254 via, for example, a link member, a pivot support portion, a rotation shaft, and the like. The link mechanism 255 positions the second pin 254 in the release position when the first pin 253 is in the holding position, and positions the first pin 253 in the release position when the second pin 254 is in the holding position. .

  The biasing member 256 biases one of the first pin 253 and the second pin 254 to the holding position. The urging member 256 of this embodiment urges the first pin 253 to the holding position of the first pin 253. For example, a coil spring or the like is used as the biasing member 256, one end side is fixed inside the subweight 60, and the first pin 253 is biased toward the holding position at the other end side.

  The suction device 257 can suck the other of the first pin 253 or the second pin 254 to the holding position by electromagnetic force. The suction device 257 according to the present embodiment can suck the second pin 254 to the holding position of the second pin 254. The suction device 257 is configured by, for example, an electromagnet, a solenoid, or the like provided in the holding frame engaging recess 252a of the subweight holding frame 252. The suction device 257 is electrically connected to the control panel 8 and generates an electromagnetic force by electric power supplied to the electromagnet, solenoid, etc. via the control panel 8, and the second pin 254 made of a metal material is provided. Suction can be performed up to the holding position (see FIG. 12).

  In the elevator 201 configured as described above, the attachment / detachment device 250 turns ON / OFF the suction of the second pin 254 by electromagnetic force in a state where the counterweight 4 is in a predetermined attachment / detachment position, so that the counterweight 4 Thus, the sub weight 60 can be attached and detached. When attaching / detaching the sub weight 60 to / from the counter weight 4 according to the situation, the control panel 8 moves the counter weight 4 to the attachment / detachment position, and attaches / detaches the sub weight 60 at the attachment / detachment position.

  For example, in the state where each subweight 60 is held by the subweight holding frame 252, the attachment / detachment device 250 is supplied with electric power to the suction device 257, and the second pin 254 is brought into the holding position by the electromagnetic force of the suction device 257. positioned. In this case, in the attachment / detachment device 250, the second pin 254 protrudes from the sub weight 60 and engages with the holding frame engaging recess 252a, whereby the sub weight 60 is held by the sub weight holding frame 252. ing. At this time, the attachment / detachment device 250 can retract the first pin 253 to the release position by the action of the link mechanism 255.

  In this state, the control panel 8 moves the counter weight 4 to the attachment / detachment position, so that the counter weight 4 is positioned at a predetermined position below the sub weight 60 in the vertical direction. At this time, the counterweight 4 is located at a position where the first pin 253 faces the counter frame engaging recess 251a. In this state, when the control panel 8 cuts off the power supply to the suction device 257 and turns off the suction of the second pin 254 by the electromagnetic force of the suction device 257, the first pin 253 is applied by the biasing force of the biasing member 256. Moves to the holding position. In the attaching / detaching device 250, the first pin 253 protrudes from the sub weight 60 and engages with the counter frame engaging recess 251a. At this time, the attachment / detachment device 250 can retract the second pin 254 to the release position by the action of the link mechanism 255 in conjunction with the movement of the first pin 253. Thereby, the attachment / detachment device 250 can release the subweight 60 from the subweight holding frame 252 and load it on the counter frame 251, that is, add the subweight 60 to the counterweight 4.

  The attachment / detachment device 250 loads the necessary number of subweights 60 on the counterweight 4 by turning off the power supply to the corresponding suction device 257 in accordance with the required number of subweights 60 at the attachment / detachment position. In addition, the unnecessary subweight 60 can be held in the subweight holding frame 252. In addition, the attachment / detachment device 250 lowers the unnecessary subweight 60 from the counterweight 4 and holds the subweight by turning on the power supply to the suction device 257 corresponding to the unnecessary subweight 60 at the attachment / detachment position. The frame 252 can be held. As a result, the elevator 201 can attach / detach the necessary number of sub-weights 60 to / from the counter weight 4 by the attaching / detaching device 250.

  And the control panel 8 can make the weight of the counterweight 4 variable by attaching / detaching the subweight 60 to / from the counterweight 4 by the attaching / detaching device 250 as described above according to the usage situation of the elevator 201. . Thus, the elevator 201 can make the weight balance between the weight on the car 3 side and the weight on the counterweight 4 side of the hoisting machine 10 appropriate according to the use situation. As a result, the elevator 201 makes the weight of the counterweight 4 less unbalanced between the weight on the car 3 side of the hoisting machine 10 and the weight on the counterweight 4 side in accordance with the usage status of the elevator 201. Can be changed.

  In the attaching / detaching device 250 described above, the urging member 256 urges the second pin 254 to the holding position of the second pin 254, and the suction device 257 holds the first pin 253 to the first pin 253. It may be capable of sucking at a position. In this case, the first pin 253 is made of a metal material that can be attracted by electromagnetic force, and the suction device 257 is made of an electromagnet, a solenoid, or the like provided in the counter frame engaging recess 251a of the counter frame 251.

  The elevator 201 described above includes the car 3, the counterweight 4, and the attachment / detachment device 250. The car 3 can move up and down in the hoistway 2. The counterweight 4 is connected to the car 3 via the main rope 5 and can move up and down in the hoistway 2 in conjunction with the car 3. The attaching / detaching device 250 is provided in the hoistway 2, and the sub weight 60 can be attached to and detached from the counterweight 4. The attachment / detachment device 250 includes a counter frame 251, a subweight holding frame 252, a first pin 253, a second pin 254, a link mechanism 255, a biasing member 256, and a suction device 257. The counter frame 251 is fixed to the counter weight 4 side, and a counter frame engaging recess 251a is formed. The sub-weight holding frame 252 is provided so as to be movable relative to the counterweight 4 in the ascending / descending direction, and a holding frame engaging recess 252a is formed. The first pin 253 is provided on the sub-weight 60 and protrudes from the sub-weight 60 to engage with the counter frame engaging recess 251a, and the engagement between the counter frame engaging recess 251a is canceled. It can move to the release position accommodated on the weight 60 side. The second pin 254 is provided on the sub-weight 60 and protrudes from the sub-weight 60 to engage with the holding frame engaging recess 252a, and the engagement between the holding frame engaging recess 252a is canceled. It can move to the release position accommodated on the weight 60 side. The link mechanism 255 positions the second pin 254 in the release position when the first pin 253 is in the holding position, and positions the first pin 253 in the release position when the second pin 254 is in the holding position. The biasing member 256 biases one of the first pin 253 or the second pin 254 to the holding position. The suction device 257 can suck the other of the first pin 253 or the second pin 254 to the holding position by electromagnetic force. Therefore, the elevator 201 can be operated with an optimal weight balance by changing the weight of the counterweight 4 by the attachment / detachment device 250 according to the usage situation and the like, so that efficient operation can be performed.

[Embodiment 3]
FIG. 13 is a schematic diagram illustrating a schematic configuration example of an elevator attachment / detachment device according to the third embodiment. FIG. 14 is a schematic diagram illustrating a holding position of the elevator attachment / detachment device according to the third embodiment. FIG. 15 is a schematic diagram illustrating a release position of the elevator attachment / detachment device according to the third embodiment. The elevator according to the third embodiment is different from the first and second embodiments in the configuration of the detachable device.

  As shown in FIGS. 13, 14, and 15, the elevator 301 according to the present embodiment includes an attachment / detachment device 350. The attachment / detachment device 350 according to the present embodiment is provided in the hoistway 2 and attaches / detaches the sub weight 60 to / from the counter weight 4 using an arm member. As shown in FIG. 1, the detachable device 350 may be an upper loading / unloading system provided in the upper part (near the ceiling) in the hoistway 2, or the lower part (pit) in the hoistway 2 as shown in FIG. 2. The lower side unloading method provided in the vicinity) may be used. FIG. 13, FIG. 14 and FIG. 15 illustrate the case of the upper unloading method.

  Specifically, the attachment / detachment device 350 of this embodiment includes an arm member 351 and an actuator 352.

  The arm member 351 is provided at the lower end portion of the counterweight 4 or the upper end portion of the hoistway 2. 13, 14, and 15 illustrate the case of the upper loading / unloading method as described above (see FIG. 1). In this case, the arm member 351 is provided at the upper end portion of the hoistway 2. The arm member 351 is a plate-like member and is provided along the raising / lowering direction of the car 3 and the counterweight 4. Here, two arm members 351 are provided at intervals in the horizontal direction so as to face the end surface in the long side direction of the subweight 60 at the attachment / detachment position (see FIG. 14 and the like). Each of the two arm members 351 has an upper end in the vertical direction connected to the actuator 352, and a claw portion 351a provided at the lower end in the vertical direction. Each arm member 351 has a holding position (see FIG. 14) where the claw portion 351a can hold the subweight 60 around the rotation shaft provided in the actuator 352, and the subweight 60 is released from the claw portion 351a. And can be rotated to a release position (see FIG. 15).

  Here, each sub-weight 60 has an engagement groove 361 formed on the lower surface in the vertical direction. In each subweight 60, two engaging grooves 361 are provided, one on each end face in the long side direction of the subweight 60. Each subweight 60 is held by the arm member 351 by the engagement of the claw portions 351a of the arm members 351 with the engagement grooves 361 when the arm members 351 are located at the holding positions at the attachment / detachment positions. The On the other hand, each subweight 60 has the claw portion 351a of each arm member 351 separated from the engagement groove 361 by the arm member 351 being located at the release position at the attachment / detachment position, and thus released from each arm member 351. Is done.

  The actuator 352 rotates the arm member 351 between the holding position and the release position as the pressing member 353 is pressed. The actuator 352 of the present embodiment rotates the arm member 351 from the holding position to the release position in conjunction with the pressing member 353 being pressed (see FIG. 15). On the other hand, the actuator 352 gradually rotates the arm member 351 from the release position to the holding position in conjunction with the release of the pressing of the pressing member 353. A total of two pressing members 353 are provided, one for each of the two arm members 351. The actuator 352 may be one that electrically rotates the arm member 351 by an electric motor or the like in conjunction with the pressing of the pressing member 353, or the link member, the pivot support portion, or the cam that is interlocked with the pressing of the pressing member 353. The arm member 351 may be mechanically rotated via a member or the like. The actuator 352 urges each arm member 351 to the holding position side with a predetermined size.

  The attachment / detachment device 350 includes an arm member 351 and an actuator 352 provided in the vicinity of the attachment / detachment position, and is provided so as to be relatively movable with respect to the counterweight 4 in the up-and-down direction. The arm member 351 and the actuator 352 may be configured to move relative to the counterweight 4 by being moved by various driving devices, or may be fixed in the hoistway 2 and then the counter. A configuration in which the weight 4 can move relative to the counter weight 4 by moving the weight 4 may be used. FIG. 13 and the like illustrate the case of the upper loading / unloading method as described above. In this case, the arm member 351 and the actuator 352 are arranged in the vertical direction of the counterweight 4 with the counterweight 4 in the attachment / detachment position. Located on the upper side.

  In the attachment / detachment device 350 of the present embodiment, the pressing member 353 is pressed by a pressing portion 4 d provided at the upper end of the counterweight 4 in the vertical direction. 4 d of press parts are each provided in the counterweight 4 in the position below the raising / lowering direction (vertical direction) of each press member 353, respectively. Each pressing portion 4d is configured, for example, by forming a frame that connects the stacked weights 4a so as to protrude upward in the vertical direction. In the attachment / detachment device 350, the pressing portion 4 d can press the pressing member 353 by the relative movement of the arm member 351, the actuator 352, and the counterweight 4 along the ascending / descending direction.

  In addition, each subweight 60 of this embodiment has the convex part 63a formed in one surface of the opposing surface which mutually faces in the laminated | stacked state similarly to the above, and the recessed part 63b is formed in the other surface. . Further, in the counterweight 4, the convex portion 63 a is formed on the upper surface in the vertical direction also in the weight 4 a at the top in the vertical direction. These convex portions 63a and concave portions 63b function as a positioning / load collapse prevention mechanism by being fitted to each other as described above.

  In the elevator 301 configured as described above, the arm member 351 of the attachment / detachment device 350 is rotated between the holding position and the release position in a state where the counter weight 4 is at a predetermined attachment / detachment position. Thus, the sub weight 60 can be attached and detached. When the control panel 8 attaches / detaches the sub weight 60 to / from the counter weight 4 according to the situation, the control weight 8 moves the counter weight 4 to the attaching / detaching position, here, to the vicinity of the highest point in the hoistway 2, and The sub weight 60 is attached and detached.

  For example, as shown in FIG. 13, the control panel 8 has all the sub-weights 60 added to the counter weight 4, and when the unnecessary sub-weight is lowered from this state, the counter weight 4 is moved to the attachment / detachment position. Let As a result, the counterweight 4 is positioned on the lower side in the vertical direction of the arm member 351 and the actuator 352. At this time, each arm member 351 is in the holding position.

  Then, the control panel 8 relatively moves the counter weight 4, the arm member 351, and the actuator 352 in the approaching direction from this state according to the thickness of the unnecessary number of sub-weights 60 depending on the situation. For example, the control board 8 raises the counterweight 4. The control panel 8 stops the relative movement in a state where the claw portions 351a of the arm members 351 are engaged with the engagement grooves 361 at the boundary between the necessary subweight 60 and the unnecessary subweight 60. During this time, each arm member 351 is urged toward the holding position with a predetermined size by the actuator 352. Therefore, after the claw portion 351a gets over the unnecessary subweight 60 with the relative movement, the urging force is applied. Rotate again to the holding position. As a result, each arm member 351 engages the claw portion 351a with the engagement groove 361 of the lowermost sub-weight 60 among the unnecessary sub-weights 60. Thereafter, the control panel 8 relatively moves the counterweight 4, the arm member 351, and the actuator 352 in directions away from each other. For example, the control board 8 lowers the counterweight 4. As a result, the attachment / detachment device 350 can hold the unnecessary subweight 60 on the claw portion 351a of each arm member 351.

  At this time, each of the weights 4a and the respective subweights 60 in the uppermost vertical direction is properly fixed by fitting the convex portions 63a and the concave portions 63b on the surfaces facing each other. Thus, the elevator 301 can prevent the subweight 60 from collapsing and is positioned so that the position of each engagement groove 361 is an appropriate position, so that the claw portion 351a is engaged with the engagement groove 361. Engagement can be ensured.

  When the sub weight 60 held on the claw portion 351a of each arm member 351 is loaded on the counter weight 4, the control panel 8 makes the counter weight 4, the arm member 351, and the actuator 352 relative to each other in the approaching direction. Move. At this time, as shown in FIG. 15, the control panel 8 performs the above relative movement to a position where the pressing member 353 is pressed by the pressing portion 4 d provided on the counterweight 4. Thus, the actuator 352 rotates the arm member 351 from the holding position to the release position in conjunction with the pressing member 353 being pressed. As a result, the attachment / detachment device 350 can load the subweight 60 held on the claw portion 351a of each arm member 351 onto the counterweight 4. Thereafter, the control panel 8 relatively moves the counterweight 4, the arm member 351, and the actuator 352 in directions away from each other. Accordingly, the actuator 352 releases the pressing of the pressing member 353, and in conjunction with this, the arm member 351 is gradually rotated from the release position to the holding position.

  The attachment / detachment device 350 can hold the unnecessary subweights 60 on the claw portions 351a of the arm members 351 after loading the necessary number of subweights 60 on the counterweight 4 as described above. As a result, the elevator 301 can attach / detach the necessary number of sub-weights 60 to / from the counter weight 4 by the attaching / detaching device 350.

  The control panel 8 can make the weight of the counterweight 4 variable by attaching / detaching the subweight 60 to / from the counterweight 4 by the attaching / detaching device 350 as described above in accordance with the usage status of the elevator 301. . Thereby, the elevator 301 can make the weight balance of the weight on the car 3 side of the hoisting machine 10 and the weight on the counterweight 4 side appropriate in accordance with the use situation. As a result, the elevator 301 makes the weight of the counterweight 4 less unbalanced between the weight on the car 3 side of the hoisting machine 10 and the weight on the counterweight 4 side according to the usage status of the elevator 301. Can be changed.

  In the case where the attaching / detaching device 350 described above is of the lower loading / unloading method (see FIG. 2), the arm member 351 and the actuator 352 are provided at the lower end portion of the counterweight 4 and together with the counterweight 4 It can be moved up and down. And when the control panel 8 attaches / detaches the sub weight 60 to / from the counter weight 4 according to the situation, the control weight 8 moves the counter weight 4 to the attaching / detaching position, here, to the vicinity of the lowest point in the hoistway 2, and the attaching / detaching position. Attach and remove the subweight 60. In this case, the sub weight 60 is stacked and arranged in a region located in the lower part (for example, the floor surface) in the hoistway 2 and below the counter weight 4 in the vertical direction. The pressing portion 4d is provided on the lower part (for example, floor surface) side of the hoistway 2. The weight 4a at the lowest level in the vertical direction of the counterweight 4 has a concave portion 63b formed on the lower surface in the vertical direction, and the sub weight 60 at the uppermost vertical direction has a convex portion 63a on the upper surface in the vertical direction. The

  In this case, for example, all the sub weights 60 are added to the counter weight 4, and when the unnecessary sub weight 60 is lowered from this state, the control panel 8 moves the counter weight 4 to the attachment / detachment position. At this time, each arm member 351 is in the holding position.

  And the control panel 8 is a position where the pressing member 353 provided on the counterweight 4 side is pressed by the pressing portion 4d provided on the counterweight 4 and the lower part (for example, floor surface) side of the hoistway 2 from this state. Move to a relative position. For example, the control board 8 lowers the counterweight 4. Thus, the actuator 352 rotates the arm member 351 from the holding position to the release position in conjunction with the pressing member 353 being pressed. As a result, the attachment / detachment device 350 can release the subweight 60 held on the claw portion 351a of each arm member 351 to the lower part (for example, floor surface) side of the hoistway 2 and lower it from the counterweight 4.

  Then, the control panel 8 performs the following control when the sub weight 60 stacked on the lower part (for example, floor surface) side of the hoistway 2 is loaded on the counter weight 4. That is, the control panel 8 relatively moves the counterweight 4, the arm member 351, the actuator 352, and the subweight 60 according to the thickness of the necessary number of subweights 60 according to the situation at the attachment / detachment position (for example, , Lower the counter weight 4). At this time, the attaching / detaching device 350 is in a state where the pressing of the pressing member 353 is released, and each arm member 351 is in the holding position. During this time, each arm member 351 is urged to the holding position side by a predetermined size by the actuator 352, so that the claw portion 351a gets over the subweight 60 with the relative movement and is held again by the urging force. Rotate to position. As a result, each arm member 351 engages the claw portion 351a with the engagement groove 361 of the lowermost subweight 60 of the necessary subweights 60. Thereafter, the control panel 8 relatively moves the counterweight 4, the arm member 351, the actuator 352 and the lower part of the hoistway 2 in a direction away from each other. For example, the control board 8 raises the counterweight 4. As a result, the attachment / detachment device 350 can hold the necessary subweight 60 on the claw portion 351a of each arm member 351.

  The elevator 301 described above includes the car 3, the counterweight 4, and the attaching / detaching device 350. The car 3 can move up and down in the hoistway 2. The counterweight 4 is connected to the car 3 via the main rope 5 and can move up and down in the hoistway 2 in conjunction with the car 3. The attaching / detaching device 350 is provided in the hoistway 2, and the sub weight 60 can be attached to and detached from the counterweight 4. The attachment / detachment device 350 includes an arm member 351 and an actuator 352. The arm member 351 is provided at the lower end portion of the counterweight 4 or the upper end portion of the hoistway 2 along the ascending / descending direction of the counterweight 4. The arm member 351 can rotate between a holding position where the claw portion 351a provided at the lower end in the vertical direction can hold the subweight 60 and a release position where the subweight 60 is released from the claw portion 351a. . The actuator 352 rotates the arm member 351 between the holding position and the release position as the pressing member 353 is pressed. Therefore, the elevator 301 can be operated with an optimum weight balance by changing the weight of the counterweight 4 by the attaching / detaching device 350 according to the use situation and the like, and thus can be operated efficiently.

[Embodiment 4]
FIGS. 16 and 17 are schematic diagrams illustrating a schematic configuration example of the elevator attachment / detachment device according to the fourth embodiment. The elevator according to the fourth embodiment is different from the first, second, and third embodiments in the configuration of the attachment / detachment device.

  As shown in FIGS. 16 and 17, the elevator 401 according to this embodiment includes an attachment / detachment device 450. The attachment / detachment device 450 of this embodiment is provided in the hoistway 2 and is configured by a knock cam mechanism 451. As shown in FIG. 2, the attachment / detachment device 450 is a lower loading / unloading system provided in a lower portion (near the pit) in the hoistway 2. In this case, the subweight 60 is disposed in the lower part in the hoistway 2, for example, the floor surface 2b. The sub weight 60 is arranged on the floor 2b on the lower side in the vertical direction of the counter weight 4. For example, the sub weight 60 is disposed between a pair of guide rails 16 that guide the lifting and lowering of the counterweight 4. The pair of guide rails 16 are guide members extending along the up-and-down direction. In addition, the elevator 401 of this embodiment has shown only one subweight 60 in FIG. 16, FIG.

  Specifically, the attachment / detachment device 450 of this embodiment includes a knock cam mechanism 451 and an engagement portion 452. In the attachment / detachment device 450, a knock cam mechanism 451 is provided on one side of the counterweight 4 or the subweight 60, and an engagement portion 452 is provided on the other side of the counterweight 4 or the subweight 60. In the attachment / detachment device 450 of this embodiment, a knock cam mechanism 451 is provided on the sub-weight 60, and an engagement portion 452 is provided on the counter weight 4.

  The knock cam mechanism 451 is provided on the upper end surface side of the sub weight 60 in the vertical direction. The knock cam mechanism 451 of this embodiment is provided as a pair at both ends of the sub weight 60 in the long side direction. The knock cam mechanism 451 includes a rotating member 453 and a pressing member 454.

  The rotating member 453 includes a first rotating part 453a, a shaft part 453b, and a second rotating part 453c. The rotating member 453 is configured integrally by connecting the first rotating portion 453a and the second rotating portion 453c via the shaft portion 453b. The first rotating part 453a is formed in a disk shape, for example, and the second rotating part 453c is formed in a rectangular bar shape, for example. The rotating member 453 is assembled so that the first rotating portion 453a is not dropped from the sub weight 60 by a lid member or the like in a state where the first rotating portion 453a is accommodated in the accommodating space portion 60a formed in the sub weight 60. In the rotating member 453, the shaft portion 453b is along the ascending / descending direction and the second rotating portion 453c is positioned above the first rotating portion 453a in a state where the first rotating portion 453a is accommodated in the accommodating space portion 60a. The sub weight 60 is assembled in such a positional relationship. The rotating member 453 is provided to be rotatable around the shaft portion 453b.

  The pressing member 454 is provided so as to protrude from the upper end surface of the sub weight 60 in the vertical direction, and is provided so as to be pressed along the ascending / descending direction. After being pressed, the pressing member 454 is biased so as to return to the original position when the pressing is released.

  Whenever the pressing member 454 is pressed, the knock cam mechanism 451 is interlocked with the pressing of the pressing member 454 so that the rotating member 453 rotates around the shaft portion 453b through a predetermined rotation angle (for example, 90 °). Rotate in one direction every °). The knock cam mechanism 451 rotates the rotating member 453 each time the pressing member 454 is pressed by the lower end portion of the counterweight 4 in association with the relative movement of the counterweight 4 and the subweight 60 in the ascending / descending direction (lowering of the counterweight 4). Let The knock cam mechanism 451 rotates the rotating member 453 in one direction for each predetermined rotation angle each time the pressing member 454 is pressed.

  The engaging portion 452 is provided on the lower end surface side in the vertical direction of the lowermost weight 4 a of the counterweight 4. A pair of engaging portions 452 are provided at both ends of the weight 4a in the long side direction. Each engagement portion 452 is provided at a position substantially opposite to each knock cam mechanism 451 with respect to the vertical direction at the attachment / detachment position. The engaging portion 452 of this embodiment includes a passage hole portion 455 and a rotation space portion 456, and the passage hole portion 455 and the rotation space portion 456 communicate with each other.

  The passage hole portion 455 is formed so as to open to the end surface on the lower side in the vertical direction of the lowermost weight 4 a of the counterweight 4. The passage hole portion 455 is formed in a rectangular shape that is slightly larger than the second rotation portion 453c of the rotation member 453. Therefore, the passage hole portion 455 is formed so that the second rotating portion 453c can pass therethrough. The rotation space portion 456 is a space portion that can accommodate the second rotation portion 453c of the rotation member 453 therein, and is formed in a size and shape that can allow rotation around the shaft portion 453b of the rotation member 453.

  The knock cam mechanism 451 rotates the rotating member 453 in one direction for each predetermined rotation angle each time the pressing member 454 is pressed by the lower end portion of the counterweight 4 so that the rotating member 453 is released from the holding position. Can rotate to position. The release position of the rotation member 453 is a position where the sub-weight 60 is released from the counterweight 4, and is a position where the second rotation part 453c can pass through the passage hole 455 as shown in FIG. On the other hand, the holding position of the rotating member 453 is a position where the sub weight 60 is connected to the counterweight 4 and is a position where the second rotating portion 453c is held in the rotating space portion 456 as shown in FIG. Here, in the knock cam mechanism 451, each time the pressing member 454 is pressed, the rotating member 453 is sequentially switched between the holding position and the releasing position.

  In the elevator 401 configured as described above, the rotating member 453 of the knock cam mechanism 451 of the attachment / detachment device 450 rotates between the holding position and the release position in a state where the counter weight 4 is in the predetermined attachment / detachment position. The sub weight 60 can be attached to and detached from the weight 4. When the control panel 8 attaches / detaches the sub weight 60 to / from the counter weight 4 according to the situation, the control weight 8 moves the counter weight 4 to the attaching / detaching position, here, to the vicinity of the lowest point in the hoistway 2 and at the attaching / detaching position. The sub weight 60 is attached and detached.

  For example, when the sub weight 60 is loaded from the state in which the sub weight 60 is not added to the counter weight 4, the control panel 8 moves the counter weight 4 to the attach / detach position as shown in FIG. 16. As a result, the counterweight 4 is positioned above the subweight 60 in the vertical direction. At this time, the rotating member 453 is in the release position, and the second rotating portion 453 c is inserted into the rotating space portion 456 through the passage hole portion 455.

  Then, the control panel 8 relatively moves the counterweight 4 and the subweight 60 in the approaching direction from this state. Here, the control panel 8 lowers the counterweight 4 and presses the pressing member 454 by the lower end portion of the counterweight 4. Thereby, in the knock cam mechanism 451, the rotation member 453 rotates by a predetermined rotation angle, and the rotation member 453 is positioned at the holding position as shown in FIG. Thereby, the attachment / detachment device 450 is in a state where the second rotating portion 453c is held in the rotating space portion 456, and is in a locked state. Therefore, the attachment / detachment device 450 is in a state where the sub weight 60 is connected to the counter weight 4 via the rotating member 453. Thereafter, the control panel 8 relatively moves the counterweight 4 and the subweight 60 in the separating direction (here, the counterweight 4 is raised). As a result, the attachment / detachment device 450 can connect the sub weight 60 to the counter weight 4.

  The control panel 8 moves the counter weight 4 to the attaching / detaching position when the unnecessary sub weight 60 is lowered from the counter weight 4. Then, the control panel 8 relatively moves the counterweight 4 and the subweight 60 in the approaching direction from this state. Here, the control panel 8 lowers the counterweight 4 and presses the pressing member 454 by the lower end portion of the counterweight 4. Thereby, in the knock cam mechanism 451, the rotation member 453 rotates by a predetermined rotation angle, and as shown in FIG. 16, the rotation member 453 is positioned at the release position and the lock is released. Thereafter, the control panel 8 relatively moves the counterweight 4 and the subweight 60 in the separating direction (here, the counterweight 4 is raised). At this time, the rotating member 453 is in the release position, and the sub weight 60 is released from the counterweight 4 when the second rotating portion 453c passes through the passage hole portion 455.

  As a result, the elevator 401 can attach / detach the sub weight 60 to / from the counter weight 4 by the attaching / detaching device 450.

  The control panel 8 can make the weight of the counterweight 4 variable by attaching / detaching the subweight 60 to / from the counterweight 4 by the attaching / detaching device 450 as described above in accordance with the usage status of the elevator 401. . As a result, the elevator 401 can make the weight balance between the weight on the car 3 side and the weight on the counterweight 4 side of the hoisting machine 10 appropriate in accordance with the use situation. As a result, the elevator 401 makes the weight of the counterweight 4 less unbalanced between the weight on the car 3 side of the hoisting machine 10 and the weight on the counterweight 4 side according to the usage status of the elevator 401. Can be changed.

  In the attachment / detachment device 450 described above, the counterweight 4 may be provided with the knock cam mechanism 451, and the sub-weight 60 may be provided with the engaging portion 452. Moreover, the attachment / detachment device 450 may be an upper loading / unloading method provided in the upper part (near the ceiling) in the hoistway 2. In this case, the knock cam mechanism 451 causes the upper end portion of the counterweight 4 to be pressed by the upper end portion of the counterweight 4 in accordance with the relative movement of the counterweight 4 and the subweight 60 in the ascending / descending direction (for example, rising of the counterweight 4). The rotating member 453 is rotated in one direction for each predetermined rotation angle.

  Further, the elevator 401 may include a plurality of sub weights 60. In this case, the attachment / detachment device 450 is provided such that the knock cam mechanism 451 is interposed between the adjacent sub weights 60. In the attachment / detachment device 450, the knock cam mechanism 451 between the counterweight 4 and the sub weight 60 is the first knock cam mechanism 451, and the knock cam mechanism 451 between the adjacent sub weights 60 is the second knock cam mechanism 451. The configuration is as follows. That is, the attachment / detachment device 450 uses the first knock cam mechanism 451 and the second knock cam mechanism 451 to appropriately determine, for example, the relationship between the rotation angle at which the rotation member 453 is released and the rotation angle at which the rotation member 453 is held in advance. Adjust it. Thereby, the attachment / detachment device 450 can appropriately switch the combination of the rotational positions of the rotating members 453 of the first knock cam mechanism 451 and the second knock cam mechanism 451 according to the number of times the pressing member 454 is pressed, for example. Configure as follows. For example, the attachment / detachment device 450 has a sub-weight added to the counterweight 4 when the first knock cam mechanism 451 and the second knock cam mechanism 451 are both in the release position according to the number of times the pressing member 454 is pressed. 60 can be zero. The attachment / detachment device 450, for example, sets the sub weight 60 to the counterweight 4 by setting the first knock cam mechanism 451 to the holding position and the second knock cam mechanism 451 to the release position according to the number of times the pressing member 454 is pressed. Sheets can be added. The attachment / detachment device 450, for example, sets the subweight 60 to the counterweight 4 by setting the first knock cam mechanism 451 and the second knock cam mechanism 451 to the holding position in accordance with the number of times the pressing member 454 is pressed. Sheets can be added.

  The elevator 401 described above includes the car 3, the counterweight 4, and the attachment / detachment device 450. The car 3 can move up and down in the hoistway 2. The counterweight 4 is connected to the car 3 via the main rope 5 and can move up and down in the hoistway 2 in conjunction with the car 3. The attaching / detaching device 450 is provided in the hoistway 2, and the sub weight 60 can be attached to and detached from the counterweight 4. The attachment / detachment device 450 includes a rotation member 453, and is configured by a knock cam mechanism 451 that rotates the rotation member 453 in one direction for each predetermined rotation angle each time the pressing member 454 is pressed. The rotating member 453 is provided in the hoistway 2, here, between the sub weight 60 and the counter weight 4. The rotating member 453 can rotate between a holding position where the sub weight 60 is connected to the counter weight 4 and a release position where the sub weight 60 is released from the counter weight 4. Therefore, the elevator 401 can be operated with an optimum weight balance by changing the weight of the counterweight 4 by the attaching / detaching device 450 according to the usage situation and the like, and thus can be operated efficiently.

[Embodiment 5]
FIGS. 18 and 19 are schematic diagrams illustrating an example of a schematic configuration of the elevator attachment / detachment device according to the fifth embodiment. The elevator according to the third embodiment is different from the first, second, third, and fourth embodiments in the configuration of the attachment / detachment device.

  As shown in FIGS. 18 and 19, the elevator 501 according to the present embodiment includes an attachment / detachment device 550. The attachment / detachment device 550 of the present embodiment is provided in the hoistway 2 and includes a knock cam mechanism 551. As shown in FIG. 1, the attachment / detachment device 550 is an upper loading / unloading method provided in the upper part (near the ceiling) in the hoistway 2.

  Specifically, the attachment / detachment device 550 of this embodiment includes a knock cam mechanism 551. In the attachment / detachment device 550 of the present embodiment, a knock cam mechanism 551 is provided on the upper part of the hoistway 2. Here, one knock cam mechanism 551 is provided at each of the upper ends of the pair of guide rails 16 in the vertical direction. The knock cam mechanism 551 may be provided on a beam or the like that fixes the vertical upper ends of the pair of guide rails 16 to the wall surface of the hoistway 2.

  Knock cam mechanism 551 has rotating member 553 and pressing member 554. The rotating member 553 is formed in a rectangular bar shape, for example. The rotating member 553 is provided in the hoistway 2. The rotation member 553 is supported by the vertical upper end of the guide rail 16 so as to be rotatable about the rotation axis X2 along the vertical direction at a position that does not interfere with the guide rail 16 via a support member or the like.

  The pressing member 554 is provided so as to protrude from the end surface on the lower side in the vertical direction of the rotating member 553, and is provided so as to be pressed along the ascending / descending direction. After being pressed, the pressing member 454 is biased so as to return to the original position when the pressing is released.

  Whenever the pressing member 554 is pressed, the knock cam mechanism 551 is interlocked with the pressing of the pressing member 554, and the rotating member 553 is rotated at a predetermined rotation angle (for example, with the rotation axis X2 as the rotation center via various cam mechanisms). , 90 °) in one direction. Here, the knock cam mechanism 551 rotates the rotating member 553 by a predetermined amount each time the pressing member 554 is pressed by the pressing protrusion 4e provided on the end face of the counterweight 4 as the counterweight 4 rises in the ascending / descending direction. Rotate in one direction for each angle.

  The knock cam mechanism 551 rotates the rotating member 553 in one direction for each predetermined rotation angle each time the pressing member 554 is pressed by the pressing protrusion 4e of the counterweight 4 so that the rotating member 553 is in the holding position. And can be rotated to the release position. The release position of the rotation member 553 of the present embodiment is a position where the sub weight 60 is released from the counterweight 4, and the rotation member 553 protrudes toward the space between the pair of guide rails 16, as shown in FIG. This is the position at which the lower end surface of the subweight 60 is held. On the other hand, the holding position of the rotating member 553 is a position where the sub weight 60 is connected to the counter weight 4, and the rotating member 553 is retracted from the space between the pair of guide rails 16 as shown in FIG. This is the position where the lower end surface of the weight 60 is released. Here, in the knock cam mechanism 551, every time the pressing member 554 is pressed, the rotating member 553 is sequentially switched between the holding position and the releasing position.

  Note that the sub-weight 60 of the present embodiment has a recess 63b formed on the lower side surface in the same manner as described above. Further, in the counterweight 4, a convex portion 63a is formed on the upper surface in the vertical direction of the uppermost weight 4a in the vertical direction in the same manner as described above. These convex portions 63a and concave portions 63b function as a positioning / load collapse prevention mechanism by being fitted to each other as described above. However, here, as shown in FIG. 19, the convex portion 63a and the concave portion 63b are fitted between the rotating member 553 between the vertical lower end surface of the subweight 60 and the vertical upper end surface of the weight 4a. Is configured such that a rotatable gap is formed. Thereby, in the attachment / detachment device 550, the rotation member 553 can rotate between the holding position and the release position at the attachment / detachment position.

  The elevator 501 configured as described above is configured so that the rotating member 553 of the knock cam mechanism 551 of the attaching / detaching device 550 rotates between the holding position and the releasing position in a state where the counter weight 4 is in the predetermined attaching / detaching position. The sub weight 60 can be attached to and detached from the weight 4. When the control panel 8 attaches / detaches the sub weight 60 to / from the counter weight 4 according to the situation, the control weight 8 moves the counter weight 4 to the attaching / detaching position, here, to the vicinity of the highest point in the hoistway 2, and The sub weight 60 is attached and detached.

  For example, in the state where the sub weight 60 is not added to the counterweight 4, the attaching / detaching device 550 has the rotating member 553 in the release position as shown in FIG. 18, and the sub weight 60 is placed on the rotating member 553. Is held. When loading the sub weight 60 from this state, the control panel 8 moves the counter weight 4 to the attach / detach position. As a result, the counterweight 4 is positioned below the subweight 60 in the vertical direction.

  Then, the control panel 8 relatively moves the counterweight 4 and the pressing member 554 of the knock cam mechanism 551 from this state in the approaching direction. Here, the control panel 8 raises the counterweight 4 and presses the pressing member 554 by the pressing protrusion 4 e of the counterweight 4. At this time, as shown in FIG. 19, the convex portion 63a and the concave portion 63b are in a fitted state, and there is a predetermined gap between the vertical lower end surface of the subweight 60 and the vertical upper end surface of the weight 4a. It is in a formed state. Therefore, in the knock cam mechanism 551, the rotation member 553 rotates by a predetermined rotation angle, and the rotation member 553 is positioned at the holding position. Therefore, the attachment / detachment device 550 is in a state in which the subweight 60 held on the rotating member 553 is placed and connected to the upper end surface of the counterweight 4. Thereafter, the control panel 8 relatively moves the counterweight 4 and the pressing member 554 of the knock cam mechanism 551 in the separating direction (here, the counterweight 4 is lowered). As a result, the attachment / detachment device 550 can connect the sub weight 60 to the counter weight 4.

  The control panel 8 moves the counter weight 4 to the attaching / detaching position when the unnecessary sub weight 60 is lowered from the counter weight 4. Then, the control panel 8 relatively moves the counterweight 4 and the pressing member 554 of the knock cam mechanism 551 from this state in the approaching direction. Here, the control panel 8 raises the counterweight 4 and presses the pressing member 554 by the lower end portion of the counterweight 4. Thereby, in the knock cam mechanism 551, the rotation member 553 rotates by a predetermined rotation angle, and the rotation member 553 is positioned at the release position as shown in FIG. Therefore, the attachment / detachment device 550 holds the sub weight 60 connected to the upper end surface of the counter weight 4 on the rotating member 553 and releases the sub weight 60 from the counter weight 4. Thereafter, the control panel 8 relatively moves the counterweight 4 and the pressing member 554 of the knock cam mechanism 551 in the separating direction (here, the counterweight 4 is lowered).

  As a result, the elevator 501 can attach / detach the sub weight 60 to / from the counter weight 4 by the attaching / detaching device 550.

  The control panel 8 can make the weight of the counterweight 4 variable by attaching / detaching the subweight 60 to / from the counterweight 4 by the attaching / detaching device 550 as described above according to the usage status of the elevator 501. . Thereby, the elevator 501 can make the weight balance between the weight on the car 3 side of the hoisting machine 10 and the weight on the counterweight 4 side appropriate according to the use situation. As a result, the elevator 501 makes the weight of the counterweight 4 less unbalanced between the weight on the car 3 side of the hoisting machine 10 and the weight on the counterweight 4 side in accordance with the use situation of the elevator 501. Can be changed.

  Note that the attachment / detachment device 550 described above may be a lower loading / unloading method provided in a lower portion (near the pit) in the hoistway 2. In this case, the attachment / detachment device 550 is provided with a knock cam mechanism 551 at the lower end portion of the counterweight 4, and the counterweight 4 Put on and take off. In this case, the release position of the rotation member 553 is a position where the sub weight 60 is released from the counterweight 4, the rotation member 553 is retracted from the space between the pair of guide rails 16, and the lower end surface of the sub weight 60 is It becomes the released position. On the other hand, the holding position of the rotating member 553 is a position where the sub weight 60 is connected to the counter weight 4, and the rotating member 553 protrudes toward the space between the pair of guide rails 16 and holds the lower end surface of the sub weight 60. Position.

  The elevator 501 described above includes the car 3, the counterweight 4, and the attaching / detaching device 550. The car 3 can move up and down in the hoistway 2. The counterweight 4 is connected to the car 3 via the main rope 5 and can move up and down in the hoistway 2 in conjunction with the car 3. The attaching / detaching device 550 is provided in the hoistway 2, and the sub weight 60 can be attached to and detached from the counterweight 4. The attachment / detachment device 550 includes a rotation member 553, and is configured by a knock cam mechanism 551 that rotates the rotation member 553 in one direction for each predetermined rotation angle each time the pressing member 554 is pressed. The rotating member 553 is provided in the hoistway 2 and is rotatable to a holding position where the subweight 60 is connected to the counterweight 4 and a release position where the subweight 60 is released from the counterweight 4. Therefore, the elevator 501 can be operated with an optimum weight balance by changing the weight of the counterweight 4 by the attaching / detaching device 550 according to the use situation and the like, and thus can be operated efficiently.

[Embodiment 6]
20 and 21 are schematic diagrams illustrating an example of a schematic configuration of the elevator attachment / detachment device according to the sixth embodiment. The elevator according to the sixth embodiment is different from the first, second, third, fourth, and fifth embodiments in the configuration of the attachment / detachment device.

  As shown in FIGS. 20 and 21, the elevator 601 according to this embodiment includes an attachment / detachment device 650. The attachment / detachment device 650 of this embodiment is provided in the hoistway 2 and is configured by a suction cup mechanism 651. As shown in FIG. 2, the attachment / detachment device 650 is a lower loading / unloading system provided in a lower portion (near the pit) in the hoistway 2. In this case, the subweight 60 is disposed in the lower part in the hoistway 2, for example, the floor surface 2b. A plurality of sub-weights 60 are stacked on the floor 2b below the counterweight 4 in the vertical direction.

  Specifically, the attachment / detachment device 650 of this embodiment includes a suction cup mechanism 651. The suction cup mechanism 651 has a suction cup 652 and a release device 653. A plurality of suction cup mechanisms 651 are provided for each subweight 60.

  The suction cup 652 is interposed between the counterweight 4 and the subweight 60 and can adsorb one to the other. A plurality of suction cups 652 of this embodiment are provided on the upper surface of each subweight 60 in the vertical direction. Each suction cup 652 is fixed to the upper surface of each subweight 60 in the vertical direction. Each suction cup 652 has a suction surface facing upward in the vertical direction. The suction cup 652 provided on the uppermost subweight 60 in the vertical direction is interposed between the counterweight 4 and the subweight 60, and adsorbs the counterweight 4 to the subweight 60. And The suction cups 652 provided on the other sub-weights 60 are interposed between the adjacent sub-weights 60, and adsorb the sub-weight 60 on the upper side in the vertical direction to the sub-weight 60 on the lower side in the vertical direction. Are connected to each other.

  The release device 653 can cancel the suction force of the suction cup 652. The release devices 653 are provided corresponding to the suction cups 652, respectively. The release device 653 is configured by, for example, an electromagnetic valve for releasing air from the suction cup 652 or the like. The release device 653 is, for example, in the state in which the sub weight 60 is stacked on the floor surface 2b, in the state in which the sub weight 60 is added to the counter weight 4 and in the attach / detach position, and through the various ports. Are electrically connected to each other and supplied with electric power for driving control. The release device 653 may be battery-powered, in a state where the subweight 60 is stacked on the floor surface 2b, in a state where the subweight 60 is added to the counterweight 4 and in the attach / detach position. It may be configured to be charged in contact with or the like or in a non-contact manner.

  In the elevator 601 configured as described above, the attaching / detaching device 650 can attach / detach the sub weight 60 to / from the counter weight 4 via the suction cup 652 in a state where the counter weight 4 is at a predetermined attaching / detaching position. When attaching / detaching the sub weight 60 to / from the counter weight 4 according to the situation, the control panel 8 moves the counter weight 4 to the attachment / detachment position, and attaches / detaches the sub weight 60 at the attachment / detachment position.

  When attaching / detaching the sub weight 60 to / from the counter weight 4, the control panel 8 moves the counter weight 4 to the attachment / detachment position. As a result, the counterweight 4 is positioned above the subweight 60 in the vertical direction. Then, the control panel 8 relatively moves the counterweight 4 and the subweight 60 in the approaching direction from this state. Here, the control panel 8 lowers the counter weight 4 and presses the suction cups 652 to attract the counter weight 4 and the sub weights 60 to each other. Then, the control panel 8 controls the release device 653 corresponding to the suction cup 652 positioned at the boundary between the necessary number of sub-weights 60 and the unnecessary sub-weight 60 according to the situation, and eliminates the suction force of the suction cup 652. . As a result, the attachment / detachment device 650 can connect the necessary number of sub-weights 60 to the counter weight 4 and separate the unnecessary sub-weights 60 from the counter weight 4 on the floor surface 2b. As a result, the elevator 601 can attach / detach the sub weight 60 to / from the counter weight 4 by the attaching / detaching device 650.

  The control panel 8 can make the weight of the counterweight 4 variable by attaching / detaching the subweight 60 to / from the counterweight 4 by the attaching / detaching device 650 as described above in accordance with the usage status of the elevator 601. . Thereby, the elevator 601 can make the weight balance between the weight on the car 3 side of the hoisting machine 10 and the weight on the counterweight 4 side appropriate according to the use situation. As a result, the elevator 601 makes the weight of the counterweight 4 less unbalanced between the weight on the car 3 side of the hoisting machine 10 and the weight on the counterweight 4 side in accordance with the usage status of the elevator 601. Can be changed.

  The suction cup 652 described above may be fixed to the lower end surface of the counterweight 4 so that the subweight 60 is attracted to the counterweight 4. In this case, the release device 653 is also provided on the counterweight 4 side.

  Moreover, the attachment / detachment device 650 described above may be an upper unloading method provided in the upper part (near the ceiling) in the hoistway 2. In this case, the attachment / detachment device 650 holds the subweight 60 in a holding mechanism provided at an upper portion in the hoistway 2, and a suction cup 652 and a release device 653 are provided on the lower surface of the subweight 60 in the vertical direction. . The control panel 8 moves the counterweight 4 to the attachment / detachment position when attaching / detaching the subweight 60 to / from the counterweight 4. As a result, the counterweight 4 is positioned below the subweight 60 in the vertical direction. Then, the control panel 8 relatively moves the counterweight 4 and the subweight 60 in the approaching direction from this state. Here, the control panel 8 raises the counter weight 4 and presses the suction cups 652 to attract the counter weight 4 and the sub weights 60 to each other. The control panel 8 controls the release device 653 corresponding to the suction cup 652 located at the boundary between the necessary number of sub-weights 60 and the unnecessary sub-weight 60 according to the situation, and cancels the suction force of the suction cup 652. As a result, the attachment / detachment device 650 can connect the necessary number of sub-weights 60 to the counter weight 4 and put the unnecessary sub-weights 60 from the counter weight 4 in the holding mechanism.

  The elevator 601 described above includes the car 3, the counterweight 4, and the attachment / detachment device 650. The car 3 can move up and down in the hoistway 2. The counterweight 4 is connected to the car 3 via the main rope 5 and can move up and down in the hoistway 2 in conjunction with the car 3. The attaching / detaching device 650 is provided in the hoistway 2, and the sub weight 60 can be attached to and detached from the counterweight 4. The attachment / detachment device 650 includes a suction cup 652 that is interposed between the counterweight 4 and the subweight 60 and can suck one of them to the other, and a release device 653 that can eliminate the suction force of the suction cup 652. Therefore, the elevator 601 can be operated with an optimal weight balance by changing the weight of the counterweight 4 by the attachment / detachment device 650 according to the usage situation and the like, and thus can be operated efficiently.

[Embodiment 7]
FIGS. 22 and 23 are schematic diagrams illustrating an example of a schematic configuration of the elevator attachment / detachment device according to the seventh embodiment. The elevator according to the seventh embodiment is different from the first, second, third, fourth, fifth, and sixth embodiments in the configuration of the attachment / detachment device.

  The elevator 701 according to the present embodiment includes an attachment / detachment device 750 as shown in FIGS. 22 and 23. The attachment / detachment device 750 of the present embodiment is provided in the hoistway 2 and includes a suction cup mechanism 751. As shown in FIG. 1, the attachment / detachment device 750 is an upper loading / unloading method provided in an upper portion (near the ceiling) in the hoistway 2.

  Specifically, the attachment / detachment device 750 of this embodiment includes a suction cup mechanism 751 and a sub-weight holding unit 752. The suction cup mechanism 751 includes a suction cup 753 and a release device 754. A plurality of suction cup mechanisms 751 are provided for each sub-weight 60.

  The suction cup 753 is interposed between the sub-weight holding part 752 and the sub-weight 60 and can adsorb one to the other, and is configured in the same manner as the suction cup 652 described above (see FIG. 20). The release device 754 can eliminate the suction force of the suction cup 753 and is configured in the same manner as the above-described release device 653 (see FIG. 20).

  Here, the sub weight holding part 752 is provided in the upper part (near the ceiling) in the hoistway 2 and holds the sub weight 60 that is not used. The sub weight holding part 752 is provided as a pair so as to face both end surfaces of the sub weight 60 in the long side direction. The pair of sub-weight holding portions 752 are both formed as plate-like wall bodies and face each other in the horizontal direction. The pair of sub-weight holding portions 752 can be moved closer to and away from each other in the horizontal direction by the power generated by the drive device when the drive device is controlled by the control panel 8.

  A plurality of suction cups 753 according to the present embodiment are provided on the horizontally facing surface of each subweight holding portion 752 in accordance with the number of subweights 60. Each suction cup 753 is fixedly provided with respect to the horizontally opposed surface of each subweight holding portion 752. Each suction cup 753 has a suction surface facing the sub-weight 60 side. Each suction cup 753 is interposed between the subweight holding part 752 and the subweight 60 when holding the subweight 60, and adsorbs the subweight 60 to each subweight holding part 752, and each subweight holding part 752. And the sub weights 60 are connected. The release device 754 is provided corresponding to each suction cup 753. The release device 754 is electrically connected to the control panel 8 via various ports, for example, and is driven and controlled by being supplied with electric power.

  In addition, each subweight 60 of this embodiment has the convex part 63a formed in one surface of the opposing surface which mutually faces in the laminated | stacked state similarly to the above, and the recessed part 63b is formed in the other surface. . Further, in the counterweight 4, the convex portion 63 a is formed on the upper surface in the vertical direction also in the weight 4 a at the top in the vertical direction. These convex portions 63a and concave portions 63b function as a positioning / load collapse prevention mechanism by being fitted to each other as described above. Here, a plurality of (here, two) convex portions 63a and concave portions 63b are provided for one surface.

  In the elevator 701 configured as described above, the attaching / detaching device 750 can attach / detach the sub weight 60 to / from the counter weight 4 via the suction cup 753 in a state where the counter weight 4 is at a predetermined attaching / detaching position. When attaching / detaching the sub weight 60 to / from the counter weight 4 according to the situation, the control panel 8 moves the counter weight 4 to the attachment / detachment position, and attaches / detaches the sub weight 60 at the attachment / detachment position.

  The control panel 8 moves the counter weight 4 to the attachment / detachment position when the sub weight 60 held by the sub weight holding portion 752 is loaded on the counter weight 4. As a result, the counterweight 4 is positioned below the subweight 60 in the vertical direction. In this state, the control panel 8 has a release device 754 corresponding to the suction cup 753 located at the boundary between the necessary number of subweights 60 and the unnecessary subweight 60 according to the situation, and the vertical direction of the release device 754. All the release devices 754 on the lower side in the direction are controlled to eliminate the suction force of the suction cup 753. As a result, the attachment / detachment device 750 loads and connects the necessary number of sub-weights 60 held by the sub-weight holding unit 752 to the upper end of the counterweight 4 and connects the unnecessary sub-weight 60 as it is. Can be retained. At this time, the sub weight 60 and the counter weight 4 are in a state in which the convex portion 63a and the concave portion 63b are fitted. As a result, the elevator 701 can load the subweight 60 on the counterweight 4 by the attaching / detaching device 750.

  On the other hand, the control panel 8 moves the counterweight 4 to the attachment / detachment position when the subweight 60 loaded on the upper end of the counterweight 4 is lowered. As a result, the sub weight 60 loaded on the upper end portion of the counter weight 4 is positioned between the pair of sub weight holding portions 752. From this state, the control panel 8 brings the pair of sub-weight holding parts 752 closer to each other, presses the suction cups 753, and sucks the sub-weights 60 to the sub-weight holding parts 752. Thereafter, the control panel 8 relatively moves the counterweight 4 and the subweight 60 in the separating direction in order to release the fitting between the convex portion 63a and the concave portion 63b. Here, the control panel 8 lowers the counterweight 4 to release the fitting between the convex portion 63a and the concave portion 63b. As a result, the elevator 701 can lower the subweight 60 from the counterweight 4 by the attaching / detaching device 750.

  And the control panel 8 can make the weight of the counterweight 4 variable by attaching / detaching the subweight 60 to / from the counterweight 4 by the attaching / detaching device 750 as described above according to the use situation of the elevator 701. . Thereby, the elevator 701 can make the weight balance between the weight on the car 3 side and the weight on the counterweight 4 side of the hoisting machine 10 appropriate according to the use situation. As a result, the elevator 701 is configured so that the weight of the counterweight 4 is less unbalanced between the weight on the car 3 side of the hoisting machine 10 and the weight on the counterweight 4 side in accordance with the usage status of the elevator 701. Can be changed.

  Each suction cup 753 described above may be fixed to the sub-weight 60 side and interposed between the sub-weight holding part 752 and the sub-weight 60 when holding the sub-weight 60.

  The elevator 701 described above includes the car 3, the counterweight 4, and the attaching / detaching device 750. The car 3 can move up and down in the hoistway 2. The counterweight 4 is connected to the car 3 via the main rope 5 and can move up and down in the hoistway 2 in conjunction with the car 3. The attaching / detaching device 750 is provided in the hoistway 2, and the sub weight 60 can be attached to and detached from the counterweight 4. The attachment / detachment device 750 includes a suction cup 753 that is interposed between the sub-weight holding part 752 and the sub-weight 60 and can attract one to the other, and a release device 754 that can cancel the suction force of the suction cup 753. Therefore, the elevator 701 can be operated with an optimum weight balance by changing the weight of the counterweight 4 by the attachment / detachment device 750 according to the use situation and the like, and thus can be operated efficiently.

  In addition, the elevator which concerns on embodiment mentioned above is not limited to embodiment mentioned above, A various change is possible in the range described in the claim. The elevator according to the present embodiment may be configured by appropriately combining the components of the embodiments described above.

  According to the elevator which concerns on embodiment and the modification which were demonstrated above, efficient operation can be performed.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

1, 201, 301, 401, 501, 601 and 701 Elevator 2 Hoistway 4 Counterweight 4a Weight 4b Hole 4c Frame 4d Pressing part 4e Pressing protrusion 8 Control panel 10 Hoisting machine 16 Guide rails 50, 250, 350 , 450, 550, 650, 750 Detachable device 51 Linear member 52 Claw-shaped member 52a Main body 52b Protrusion 52c Conical 53 Actuator 60 Subweight 61 Hole 61a Circular hole 61b Allowable passage 61c Taper 62 Allowable rotation 251 Counter frame 251a Counter frame engaging recess 252 Subweight holding frame 252a Holding frame engaging recess 253 First pin (counter frame protruding member)
254 Second pin (projection member for holding frame)
255 Link mechanism 256 Energizing member 257 Suction device 351 Arm member 351a Claw portion 352 Actuator 353 Engaging groove 451, 551 Knock cam mechanism 452 Engaging portion 453, 553 Rotating member 454, 554 Pressing member 455 Passing hole 456 Rotation Space part 651, 751 Suction cup mechanism 652, 753 Suction cup 653, 754 Release device 752 Subweight holding part X1, X2 Rotation axis

Claims (2)

A car that can move up and down in the hoistway,
A counterweight that is connected to the car via a main rope and interlocks with the car to move up and down in the hoistway;
An attachment / detachment device provided in the hoistway and capable of attaching / detaching a subweight to / from the counterweight;
The attachment / detachment device is provided at a lower end portion of the counterweight or an upper end portion of the hoistway along a lifting / lowering direction of the counterweight and a front end of the linear member on a lower side in the vertical direction. And a claw-like member that can rotate integrally with the linear member about a rotation axis along the ascending / descending direction, and the claw-like member has a hole in which the linear member is formed in the sub-weight. By being rotated relative to the sub weight while being inserted into the portion, the holding position for holding the sub weight by the edge of the hole and the edge of the hole is eliminated. Ri rotatable der to a release position for releasing the sub weight,
The sub weight has a taper formed at the edge of the hole,
The claw-shaped member is formed into a tapered shape by forming a conical portion,
When the claw-shaped member is inserted into the hole, the claw-shaped member is guided to the hole by the taper and the cone-shaped portion .
elevator. The sub-weight is formed such that a rotation-permissible space that allows the claw-like member to rotate is communicated with the hole.
The elevator according to claim 1.

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