JPH04361967A - Cable laying method for elevator - Google Patents

Abstract

PURPOSE:To remove sag or a cable even if holding of a cable over a cage by a holding fitting is insufficient, to eliminate interference with a projection on the elevating path side, and to indicate such a position that a tension is applied to a cable connection part even if the cable slips off a fixed part so as to enable re-laying. CONSTITUTION:A cable 1 is pressed and held by a holder 4 on an outer wall upper part of an elevator cage and the cable is freely held by a guide holder on a lower part. A movement limit mark is indicated at the cable above the holder on the upper part.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of laying a cable for transmitting and receiving signals and power between the upper and lower parts of an elevator car.

0002

[Prior Art] Conventionally, in this type of cable installation method, as shown in Japanese Patent Publication No. 2-233487 and others, a cable is fixed at the upper and lower parts of an elevator car using cable holding fittings, etc. be. FIG. 5 is an overall perspective view.

[0003] Control cable 1 suspended at the bottom of the car 2
, or the wiring cable 1 from the connecting box for cable core connection provided at the bottom of the car is generally raised along the outer wall surface of the car, and the door drive device provided at the top of the car, It is laid for wiring to elevator control boxes, connecting boxes 3 for connecting cable cores necessary for lighting, etc. These wiring lines are fixed with holding fittings 4, 5, etc. along the outer wall surface of the car at the upper and lower parts of the car.

0004

[Problems to be Solved by the Invention] However, in the conventional method of fixing the cable at the upper and lower parts of the car using holding metal fittings, etc., cable damage occurs due to the cable's own weight at the fixed part and the loosening of the holding fitting tightening screws due to the running of the car. Due to misalignment, stretching of the cable itself, etc., the cable between the fixed parts becomes slack, and the cable protrudes outward from the outer wall of the car, causing a protrusion in the elevator hoistway or an elevator position detection plate installed in the hoistway. There were problems such as damage to the cable or disconnection due to contact with the cable.

[0005] Furthermore, the cable is pulled downward due to its own weight, and accordingly, the cable at the upper part of the car also moves little by little toward the fixed part. If this is left unattended for any length of time, tension will be applied to the wire core at the cable connection section, causing problems such as wire core breakage.

[0006] This invention was made to solve the above-mentioned problems, and even if the cable holding fittings at the top of the car are insufficiently held, the slack in the cables can be taken up and the protrusions in the hoistway can be removed. The purpose of the present invention is to provide a method for eliminating interference with cables, and also to display the locations where the tension applied to the cores of cable connections reaches its limit, thereby preventing failures from occurring by re-installation.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the elevator cable installation method according to the present invention includes crimping and holding the wiring cable to be installed on the outer wall surface of the car with a holder at the upper part of the car. A guide holder is provided at the bottom of the car to hold the car.

Furthermore, during operation, when the cable is pulled downward due to loosening of the holder, etc., a movement limit mark is displayed on the cable to allow the cable to move to the upper holder.

[0009]

[Operation] According to this invention, even if the cable installed on the outer wall of the car is slack between the upper holder and the lower guide holder, the lower cable can freely move to the bottom of the car under its own weight. It does not protrude outward from the outer wall of the car.

[0010] Also, even if the cable slips down from the upper holder, a cable movement limit display is provided, so that
It is possible to easily check and prevent breakage of the wire core due to tension being applied to the cable connection section during maintenance.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of claim 1 of the present invention will be described below with reference to FIGS. 1 to 3. In Fig. 1, 1 is an elevator cable installed between a car 2 and an elevator control panel, 3 is a connection box on the top of the car, and 4 is an elevator cable 1 installed above the car on the side of the car. It is a holder that is crimped and held on the top or top surface, and the screws 7, 7
It is tightened with. 5 is a guide holder for holding the elevator cable 1 provided below the side of the car;
It is tightened with screws 7,7. FIG. 2 is a sectional view taken along the line B--B in FIG. 1, and the cable 1 is crimped and held on the outer wall surface of the car by a holder 4. FIG. 3 is a sectional view taken along the line CC in FIG. 1, in which the cable 1 is loosely held by the guide holder 5.

Next, an embodiment of claim 2 of the present invention is shown in FIG.
I will explain about it. In FIG. 4, reference numeral 1 denotes an elevator cable laid on the side and top surface of the car, 4 a holder that crimply holds the elevator cable 1 installed on the top surface of the car at the upper side or upper surface of the car 2, and 6 the cable. This is a movement limit mark that indicates the limit point of the allowance dimension A within which no tension is applied to the cable connection when the cable 1 is shifted downward due to loosening of the mounting screws 7, 7 of the holder. Therefore, it is only necessary to monitor the position of the movement limit mark 6 from time to time and reinstall the movement limit mark 6 before it reaches the holder 4.

[0013]

[Effects of the Invention] As described above, according to the present invention, the cable laid along the outer wall of the elevator car is held by crimping at the upper part and loose fitting at the lower part, so that the cable does not shift or stretch. Even if it is, it will not protrude beyond the outer wall surface and interference with protrusions on the hoistway side can be prevented.

[0014] Furthermore, the present invention displays a movement limit mark on the cable that allows movement, so that tension is applied to the core of the cable connection part due to displacement of the cable.
Re-installation can be carried out before wire core breakage occurs.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view showing the embodiment of FIG. 1 according to the present invention.

FIG. 2 is a sectional view taken along line BB in FIG. 1;

FIG. 3 is a sectional view taken along the line CC in FIG. 1.

FIG. 4 is an overall perspective view showing an embodiment of claim 2 of the present invention.

FIG. 5 is an overall perspective view showing a conventional embodiment.

[Explanation of symbols]

1 Elevator cable 2 Cart 4 Cable holder 5 Cable guide holder 6. Movement limit mark

Claims (2)

[Claims] [Claim 1] When wiring control cables laid between the elevator control panel and the car, or wiring cables laid from the cable connection box provided at the bottom of the car to the top of the car, to the outer wall of the car. , the cable is crimped and held by a holder at the top of the car,
A method for laying an elevator cable, characterized in that a cable is held for play by a guide holder at the bottom of a car. 2. The cable installation method according to claim 1, wherein a movement limit mark is displayed on the cable to allow movement of the cable to the upper holder when the cable is pulled downward during operation. A cable installation method for an elevator.