JP2005170565A - Stepping board transmitting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stepping board transmitting device capable of transmitting the turning force to a manual lever for a manual switch which is installed in a pit wall surface of an elevator to prohibit the operation of the elevator by the turn of the manual lever. <P>SOLUTION: The stepping board transmitting device 10 is disposed on a pit floor surface on which a worker S passes. When the worker S steps on a stepping board 14 held in a vertically movable manner, an operation lever 20 is turned to the direction of an arrow A, and a rear end part 20b of the operation lever 20 is moved substantially in the horizontal direction of the direction of an arrow C. A connection cable 22 is pulled to turn a manual lever 58 of a manual switch 56 downwardly, i.e., to the elevator motion prohibition side. The operation of the elevator is prohibited thereby. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a footboard transmission device, and more particularly to a footboard transmission device that transmits torque to the manual lever with respect to a manual switch that is provided on a pit wall surface of the elevator and prohibits the operation of the elevator by the rotation of the manual lever.

  Conventionally, an operator may enter an elevator pit and perform work for elevator maintenance or periodic inspection. FIG. 5 is a diagram illustrating a state in the pit of the elevator.

  As shown in FIG. 5, the pit 50 is formed in the lower part of the hoistway where the elevator car 52 moves up and down, and the wall surface 54 of the pit 50 is provided with a manual switch 56 that regulates the operation of the elevator. . The manual switch 56 is provided to improve the safety of the worker S working in the pit 50 by restricting the operation of the elevator. As shown in FIG. 5, the manual switch 56 is provided with a manual lever 58. For example, when the manual lever 58 is on the upper side, that is, on the operation allowable side, the operation of the elevator is permitted, and the manual lever 58 is lowered. If it is on the side, that is, the operation prohibited side, the operation of the elevator is prohibited. In the normal operation of the elevator, the manual lever 58 is on the operation allowable side. A pit elevating trap 62 for allowing the worker S to descend on the floor surface 60 of the pit 50 is provided on the wall surface 54 of the pit 50.

  In such an elevator, when the worker S performs work in the pit 50, the landing door (not shown) of the landing 64 on the lowest floor is opened to enter the pit 50, and the pit elevating trap 62 is moved. Use to get down to the pit floor 60. The worker S turns the manual lever 58 of the manual switch 56 to the lower side, that is, the operation prohibition side while getting off the pit elevating trap 62, thereby prohibiting the operation of the elevator. When the work in the pit 50 is completed, the worker S returns the manual lever 58 to the operation-permitted side while going up the pit lifting / lowering trap 62.

  Thus, conventionally, the manual switch 56 is manually switched by the worker S. Therefore, if the worker S is not always aware of the switching of the manual switch 56, there is a possibility that the switching of the manual switch 56 is forgotten.

  Then, an object of this invention is to provide the tread board transmission device which transmits turning force with respect to the manual lever of a manual switch.

  A footboard transmission device according to the present invention is a footboard transmission device that transmits torque to a manual lever with respect to a manual switch that is provided on a pit wall surface of the elevator and prohibits the operation of the elevator by the rotation of the manual lever. A tread plate provided on the passing pit floor surface so as to be movable up and down, and a transmission mechanism for transmitting the descending movement of the tread plate as a turning force of a manual lever of a manual switch.

  In the treadboard transmission device of the present invention, the transmission mechanism is disposed below the treadboard, and connects the operation lever that rotates when the treadboard descends, and the manual switch and the operation lever of the manual switch to each other. And a connecting cable for rotating the manual lever to the operation prohibiting side of the elevator by movement.

  Furthermore, in the treadboard transmission device of the present invention, the transmission mechanism includes a connection cable that couples the manual lever of the manual switch and the treadboard to each other and rotates the manual lever to the elevator operation prohibition side by the downward movement of the treadboard. Features.

  Furthermore, in the tread board transmission device of the present invention, a spring is provided below the tread board so as to hold the tread board in a vertically movable manner.

  According to the present invention, since the turning force can be applied to the manual lever of the manual switch during the operation of the worker entering the pit, the manual switch can be switched.

  Hereinafter, modes for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same component as a prior art example, and the description is abbreviate | omitted.

Embodiment 1
FIG. 1 is a diagram showing a schematic configuration of a footboard transmission device of the present embodiment, and FIG. 2 is a configuration diagram of the footboard transmission device.

  As shown in FIG. 1, the footboard transmission device 10 is disposed on a pit floor surface 60 through which a worker S passes. The treadle transmission device 10 is stepped on by the worker S who has entered the pit 50 and turns the manual lever 58 of the manual switch 56 provided on the wall surface 54 to the elevator operation prohibiting side to prohibit the elevator operation. To do. Hereinafter, the configuration of the footboard transmission device 10 of the present embodiment will be described.

  As shown in FIG. 2, the footboard transmission device 10 of the present embodiment includes a fixed plate 12 that is disposed on the pit floor surface 60 and serves as a substrate, a footboard 14 that is disposed above the fixed plate 12, and the fixed plate 12 and the footboard. 14, and a spring 16 that holds the tread plate 14 so as to be movable up and down. Furthermore, a transmission mechanism 18 is provided for transmitting the downward movement of the tread plate 14 as the turning force of the manual lever 58 of the manual switch 56. The transmission mechanism 18 includes an operation lever 20 that rotates when the tread plate 14 is lowered, and an operation lever 20. And a connecting cable 22 that connects the manual lever 58 of the manual switch 56.

  The fixed plate 12 has a substantially rectangular shape, and is fixed to the pit floor 60 by a known method, for example. As will be described later, the fixed plate 12 is provided with a spring 16 and an operating lever 20.

  The tread plate 14 is configured to have substantially the same size as the fixed plate 12, and is installed to be movable up and down relative to the fixed plate 12, in other words, the pit floor surface 60. In the present embodiment, springs 16 that extend and contract in a direction perpendicular to the fixed plate 12 are provided at the four corners of the fixed plate 12, and the tread plate 14 is installed on these springs 16 and is held so as to be movable up and down. As a result, when a predetermined force is applied to the tread plate 14, the spring 16 contracts, and the tread plate 14 can move downward. When the applied force is released, the spring 16 is extended, and the tread plate 14 is returned to the original position by the return force of the spring 16. The upper surface of the tread board 14 may be set so as to be in a surface position with the pit floor 60 in a state where no force is applied (see FIG. 1).

  The operation lever 20 is rotatably supported by the base 24 and is rotatable in the direction of the arrow about the fulcrum 24a of the base 24. The base 24 is fixed at substantially the center of the fixed plate 12. In the present embodiment, the operating lever 20 is bent at the fulcrum 24a. Accordingly, when the distal end portion 20a of the operation lever 20 is pushed down and rotated by the tread plate 14, the rear end portion 20b moves substantially horizontally with respect to the surface of the fixed plate 12 (pit floor surface 60). The operation lever 20 is normally held at the position shown in FIG. 2 by a spring or the like (not shown).

  One end of the connection cable 22 is fixed to the rear end portion 20 b of the operation lever 20, and the other end is fixed to the manual lever 58 of the manual switch 56, and connects the operation lever 20 and the manual lever of the manual switch 56 to each other. In the present embodiment, a hollow guide cable 26 that forms a path of the connecting cable 22 and guides its movement is provided. The guide cable 26 is wound on the fixed plate 12 and is disposed along the wall surface 54 between the pit elevating trap 62 and the wall surface 54 of the pit 50, and the connecting cable 22 is passed through the guide cable 26.

  Here, the operation of the transmission mechanism 18 will be described. FIG. 3 is a diagram schematically showing the movement of the transmission mechanism 18.

  When the footboard 14 is lowered, the front end 20a of the operating lever 20 rotates in the direction of arrow A, and the rear end 20b of the operating lever 20 moves substantially horizontally in the direction of arrow C (from right to left in the figure). To do. Thereby, the connection cable 22 connected to the rear end portion 20b is pulled in the direction of the arrow C. This pulling force is transmitted to the manual lever 58 of the manual switch 56, and the manual lever 58 rotates downward, that is, the operation prohibiting side, as indicated by the dotted line in FIG. Thereby, the operation of the elevator can be prohibited.

  When the force applied to the tread plate 14 is released, the operating lever 20 is returned to the original position in the direction of arrow B by a spring or the like (not shown).

  The connecting cable 22 is pulled in accordance with the rotation of the operation lever 20 as described above, and is intended to pull the manual lever 58 downward, that is, the operation prohibiting side. In the present embodiment, this purpose is realized by using the guide cable 26, but the length and arrangement path of the connecting cable 22 can be arbitrarily adjusted in order to pull the manual lever 58.

  The footboard transmission device 10 is installed on the pit floor surface 60 through which the worker S passes. This is because the stepping plate 14 can be naturally stepped on during the approaching operation of the worker S into the pit 50. Therefore, as shown in FIGS. 1 and 2 of the present embodiment, when there is a pit elevating trap 62, it is preferably arranged at the elevating position. What is necessary is just to arrange | position to the pit floor surface 60 through which S passes. Further, the size of the footboard transmission device 10 may be large enough for the worker S to step on, may be large enough to place one or both feet of the worker S, or the entire pit floor surface 60. It may be a size that covers.

  Next, the operation of the footboard transmission device 10 will be described with reference to FIGS.

  At the time of elevator maintenance and periodic inspection, the worker S enters the pit 50 from the elevator landing door. At this time, the manual lever 58 of the manual switch 56 is on the upper side, that is, on the operation allowable side of the elevator, as shown by the solid line in FIG. The worker S gets off the pit elevating trap 62 and gets down on the footboard 14 of the footboard transmission device 10 provided on the pit floor surface 60. Thus, in this embodiment, since the footboard transmission apparatus 10 is installed in the passage of the worker S, the worker S can step on the footboard 14 naturally. When the worker S steps on the tread plate 14, as shown in FIG. 3, the front end 20a of the operating lever 20 rotates in the direction of arrow A, and the rear end 20b of the operating lever 20 moves substantially horizontally in the direction of arrow C. To do. As a result, the connecting cable 22 is pulled, and the manual lever 58 of the manual switch 56 is rotated downward (that is, indicated by a dotted line in FIG. 3). Thereby, the operation of the elevator can be prohibited.

  When the elevator maintenance and the periodic inspection are completed and the worker S leaves the tread board 14, the operation lever 20 is rotated in the direction of arrow B by a spring or the like (not shown) and returned to its original position, and the tread board 14 is also a spring. 16 to return to the original position. The worker S ascends the pit elevating trap 62 and turns the manual lever 58 of the manual switch 56 to the upper side, that is, the elevator operation permitting side, thereby allowing the elevator operation. Further, since the footboard transmission device 10 is returned to the original state, when the worker S enters the pit 50 again, the footboard transmission device 10 can operate.

Embodiment 2
FIG. 4 is a diagram showing the overall configuration of the present embodiment. In the present embodiment, the same components as those in the conventional example and the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The footboard transmission device 30 of the second embodiment is different in that the operation lever 20 of the first embodiment is not provided. That is, in the present embodiment, one end of the connection cable 22 is connected to the tread plate 14 and the other end is connected to the manual lever 58. As a result, when the tread plate 14 is stepped on, the connecting cable 22 can be pulled by the amount of downward movement of the tread plate 14, and the connecting cable 22 moves the manual lever 58 of the manual switch 56 to the lower operation prohibiting side. Can be rotated. Thereby, operation of the elevator can be prohibited. Thus, according to the present embodiment, the manual lever 58 can be switched with a simpler configuration than that of the first embodiment. Since other configurations and operations are the same as those in the first embodiment, a detailed description thereof is omitted here.

It is a figure which shows schematic structure of the footboard transmission apparatus of Embodiment 1. FIG. It is a block diagram of a footboard transmission device. It is the figure which showed typically the effect | action of the footboard transmission apparatus. It is a side view of the footboard transmission device of Embodiment 2. It is a figure which shows the mode in the pit of an elevator.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Footboard transmission device, 12 Fixed board, 14 Footboard, 16 Spring, 18 Transmission mechanism, 20 Operation lever, 22 Connection cable, 24 Base, 26 Guide cable, 50 pit, 52 Elevator car, 54 Pit wall surface, 56 Manual switch , 58 Manual lever, 60 pit floor, 62 pit elevating trap, 64 landing, S worker.

Claims (4)

A footboard transmission device that transmits torque to the manual lever with respect to a manual switch that is provided on the pit wall surface of the elevator and prohibits the operation of the elevator by turning the manual lever.
A tread board provided on the floor of the pit through which workers pass and is provided to be movable up and down;
A transmission mechanism for transmitting the descending movement of the tread as a turning force of a manual lever of a manual switch;
A tread board transmission device comprising: The footboard transmission device according to claim 1,
The transmission mechanism is
An operation lever disposed on the lower side of the tread, and rotated by lowering the tread;
A connection cable for connecting the manual lever and the operation lever of the manual switch to each other, and rotating the manual lever to the elevator operation prohibition side by the downward movement of the tread plate;
A tread board transmission device comprising: The footboard transmission device according to claim 1,
The transmission mechanism includes a connection cable that connects the manual lever of the manual switch and the footboard to each other and rotates the manual lever to the elevator operation prohibition side by a downward movement of the footboard. It is a tread board transmission device according to any one of claims 1 to 3,
A footboard transmission device, wherein a spring is provided below the footboard to hold the footboard so as to be movable up and down.

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