JP2005162372A - Snagging preventive device for elevator moving cable - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a snagging preventive device for an elevator moving cable, preventing controlling moving cable from getting snagged by hoistway apparatus, even if installed in outdoors and receiving strong wind. <P>SOLUTION: This snagging preventive device for the lifting machine moving cable comprises a car 1 ascending/descending in a hoistway 2, a connection box 3 provided in a middle part of a hoistway wall, a controlling moving cable 4 coupled between the connection box 3 and the car moving with ascending/descending of the car, a fixed wire 5 vertically stretched over the whole length of a space between a pit 2a of a hoistway bottom portion and the connection box, a guiding ring 6 coupled to the fixed wire so as to move in a vertical direction, and a sliding ring 7 movably coupled to the controlling moving cable 4 and the guiding ring 6. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a device for preventing catching of a moving cable for an elevator.

The control moving cable, which is arranged to connect the lower part of the elevator car installed outdoors and the joint box of the hoistway, is easily shaken sideways when strong winds blow. There is a problem that it is easy to catch.
In addition, in a conventional elevator moving cable, two types of cables having different dynamic characteristics are connected by a connector composed of a clip and a guide ring so that the two types of cables can be operated in good condition. Yes (for example, see Non-Patent Document 1). Furthermore, in order to prevent bumps and bumps on the hoistway wall and the car from bulging in the elevator control cable, the bulge is corrected by attaching a weight to the cable, and the hoistway wall, There is a cable that can be lifted and lowered stably without causing collision or rubbing of a car (for example, see Non-Patent Document 2).

Japan Society for Invention and Innovation Open Technical Report No. 98-2937 Japan Society for Invention and Innovation Public Technical Bulletin No. 99-8029

  In the conventional lifting prevention device for a moving cable for an elevator, there is a method of attaching a drum to the folded lower end portion of the moving cable, but there is a problem that the structure is complicated, and the weight is heavy and the cost is high. In addition, the technologies described in Non-Patent Documents 1 and 2 are both installed outdoors and are difficult to adopt as an elevator moving cable catching device that is susceptible to strong winds from the standpoint of effectiveness. Met.

  The present invention has been made to solve the above-described problems. The first object is to prevent the control moving cable from being caught on the hoistway device or the like even if it is installed outdoors and receives a strong wind. It is an object of the present invention to provide a device for preventing catching of a moving cable for elevator.

  According to the present invention, there is provided an apparatus for preventing a moving cable for an elevator from being connected to and connected between a cage that is moved up and down in the hoistway, a junction box provided in the middle of the hoistway wall, and the cage. The control moving cable that moves as the hoist moves up and down, the fixed wire stretched vertically across the entire length between the pit and the connecting box at the bottom of the hoistway, and the fixed wire are connected to be movable in the vertical direction. A guide moving ring, and a control moving cable and a sliding ring movably connected to the guide ring.

  The sliding ring is composed of a circular metal core wire and a number of metal round washers that are inserted through the metal core wire and are loosely fitted.

  The guide ring has an oval shape, and a connecting tool that moves in the axial direction by rotating and forms an opening in the guide ring is provided on the straight portion.

  Moreover, the fixed wire is disposed with a slight gap between the shaft and the hoistway wall.

  The present invention relates to a control movement that moves in accordance with the up-and-down movement of a car, and is connected and connected between a car box that moves up and down in the hoistway, a junction box provided in the middle of the hoistway wall, and the carton box. A cable, a fixed wire extending vertically across the entire length between the pit and the junction box at the bottom of the hoistway, a guide ring connected to the fixed wire so as to be movable in the vertical direction, a control moving cable and a guide For example, even if it is installed outdoors and the control cable is subjected to strong winds, it hits or rubs the hoistway wall or hoistway equipment, etc. There is an effect that it does not get caught.

  Further, since the sliding ring is composed of a circular metal core wire and a large number of metal round washers that are inserted through the metal core wire and loosely fitted, a large number of metal round washers 7b rotate while sliding. Thus, the control moving cable 4 can be moved up and down very smoothly.

  In addition, the guide ring has an oval shape, and a connecting tool that moves in the axial direction by rotating it to form an opening in the guide ring is provided on the straight part of the guide ring. Can be made easier.

  In addition, since the fixed wire is disposed with a slight gap between it and the hoistway wall, the installation space can be reduced.

Embodiment 1 FIG.
1 and 2 are side views showing a configuration of a lifting prevention device for a moving cable for an elevator according to Embodiment 1 of the present invention. FIG. 1 shows a case where a car of the elevator is located below, FIG. The case where the elevator car is located above is shown. FIG. 3 is an enlarged perspective view of the apparatus for preventing a moving cable for an elevator according to Embodiment 1 of the present invention, and FIG.

  1 and 2, reference numeral 1 denotes an elevator car that is installed outdoors or the like and may be exposed to strong winds. Even a temporary car generally called a temporary gondola is a permanent car. Also good. 2 is an elevator hoistway, 3 is a junction box (joint box) provided on the side wall in the middle of the hoistway, and is installed in a machine room (not shown) provided above the junction box. It is electrically connected to a control panel (not shown). Reference numeral 4 denotes a control moving cable that is suspended and connected to connect the connecting box 3 and the lower portion of the car 1 and is easily swayed sideways when a strong wind blows. 5 is a metal fixing wire stretched almost vertically over the entire length between the pit 2a at the bottom of the hoistway 2 and the lower part of the junction box 3, with a slight gap between the hoistway 2 walls. Has been placed. Reference numeral 6 denotes an oval guide ring in which a vertical metal fixing wire 5 is inserted into the ring, and can be freely moved in the vertical direction along the metal fixing wire 5. 6a is a connector provided in a straight line part in the middle of the oval guide ring 6, and by rotating it, it moves in the axial direction to form an opening in a part of the guide ring 6, and a metal fixing wire This makes it easy to mount to 5 etc. Reference numeral 7 denotes a circular sliding ring in which the control moving cable 4 and the guide ring 6 are inserted into the ring. The circular metal core wire 7a and a number of metal circles that are loosely inserted through the metal core wire. And a washer 7b. The metal fixing wire 5, the guide ring 6 and the sliding ring 7 constitute a hook preventing device.

  In the elevator moving cable catching prevention device configured as described above, when the car moves up and down in the vertical direction, the control moving cable 4 also moves up and down. The lower end portion of the control moving cable 4 is folded back with a predetermined radius, and the catch prevention device moves up and down while being located near the folded portion of the control moving cable 4 by its own weight as shown in FIG. To do. At this time, between the control moving cable 4 and the sliding ring 7, when the control moving cable 4 moves up and down, a number of metal round washers 7b rotate while sliding due to the frictional force. The control moving cable 4 can move up and down very smoothly. Further, since the lower end folded portion of the control moving cable 4 always moves along with the metal fixing wire 5 together with the catch preventing device, the control moving cable 4 hits, rubs, or gets caught on the hoistway wall or hoistway device. There is nothing to do.

BRIEF DESCRIPTION OF THE DRAWINGS It is a side view in the case where the catch prevention apparatus of the moving cable for elevators in Embodiment 1 of this invention is shown, and the cage | basket | car of an elevator is located below. BRIEF DESCRIPTION OF THE DRAWINGS It is a side view in case the cage of the moving cable for elevators in Embodiment 1 of this invention is shown, and the cage | basket | car of an elevator is located upwards. It is an expansion perspective view of the catch prevention apparatus of the moving cable for elevators in Embodiment 1 of this invention. It is a principal part expansion perspective view of the catch prevention apparatus of the moving cable for elevators in Embodiment 1 of this invention.

Explanation of symbols

1 elevator car 2 hoistway 2a hoistway pit 3 junction box (joint box)
4 Moving cable for control 5 Metal fixed wire 6 Guide ring 6a Connecting tool
7 Sliding ring
7a Metal core wire
7b Metal round washer

Claims (4)

Whether to move up and down in the hoistway,
A junction box provided in the middle of the hoistway wall;
A control moving cable that is connected and connected between the junction box and the car, and moves along with the up and down movement of the car,
A fixed wire stretched vertically over the entire length between the pit at the bottom of the hoistway and the junction box;
A guide ring connected to the fixed wire so as to be movable in the vertical direction;
A sliding ring movably connected to the control moving cable and the guide ring,
A device for preventing the moving cable for an elevator from being caught.   The sliding ring is composed of a circular metal core wire and a number of metal round washers that are inserted into the metal core wire and loosely fitted thereto. apparatus.   3. The guide ring according to claim 1, wherein the guide ring has an oval shape, and a connecting member that moves in the axial direction by rotating and forms an opening in the guide ring is provided on the straight portion. Device for preventing catching of moving cables for elevators.   The apparatus according to claim 1, wherein the fixed wire is disposed with a slight gap between the fixed wire and the hoistway wall.

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