JPH0630784Y2 - Signal cable attachment device for lift trucks - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a lift vehicle for moving to a high-rise building such as a high-rise apartment building or a high-rise housing complex, and is provided at a raised position of a bucket loaded with luggage. The present invention relates to a signal cable attachment device for a lift truck that is improved to ensure safety.

[Prior art and its problems]

BACKGROUND ART Conventionally, lift trucks are known for moving work in high-rise buildings such as high-rise apartments and high-rise apartments. This lift truck directly lifts luggage to be carried on the veranda, windows, etc. of high-rise buildings. The structure is such that the bucket is moved to a desired location by expanding and contracting rails and raising and lowering the carrier.

In the bucket of the lift truck described above, an undulating cylinder is interposed between the bucket and the carrier to carry the load in a horizontal state, and the bucket is erected and maintained in the horizontal state by the operation of the undulating cylinder. It is equipped with a slide mechanism to raise the bucket or pull the bucket to the operator's hand, but such control is performed by a control device equipped in a cart or a remote control box. By the way, the signal cable connecting the control device and the bucket is fed and wound along the guide rail. Since such signal cables are usually routed from the upper end to the lower end of the guide rail, the length of the signal cable needs to extend over the entire length of the guide rail, and the wiring must be routed inside the guide rail. Therefore, the work is complicated, and there is a problem that the cable is entangled.

[Means and Actions for Solving Problems]

In view of the above-mentioned problems, the present invention provides a movable carriage on which an extension member having a distal end guide rail telescopically fitted is erected and swung freely, and the extension member is provided with the extension member. A signal cable attachment device for a lift vehicle in which a bucket that can be moved up and down on an extension member by a lifting control device mounted on a trolley is slidably arranged back and forth, and a detector that detects a sliding state of the bucket in the bucket. And, a signal cable for transmitting a detection signal is stretched between the detector and the lifting control device, and a reel for winding the signal cable and winding the signal cable is provided in the vicinity of the tip of the base guide rail. Above the reel of the base end guide rail, a pair of rollers for pivoting and supporting the signal cable that is unwound from the reel and wound and is wound is guided. A lift vehicle that is configured to omit the contact by the contact between the signal cable of the guide rail and the bucket to ensure reliable transmission of a predetermined detection signal or a predetermined control signal, and simplifies the signal cable wiring work. It is an object of the present invention to provide a signal cable attaching device of the above.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a moving lift vehicle used in the present invention. A turntable 3 is rotatably provided on a carriage 2 of the lift vehicle 1, and a guide rail 4 extends and contracts and a carrier 5 moves up and down. A control device 7 for grasping the sliding condition of the bucket 6 is provided. A guide rail 4 (extending member) in which a base guide rail, a first middle guide rail, a second middle guide rail, and a tip guide rail whose base is rotatably supported is sequentially telescopically inserted into the turntable 3 (extension member). ) Is provided, and the guide rail 4 is undulated by a hoisting cylinder 8 and is extendable and retractable by telescopic cylinders 4a and 4b provided along the guide rail 4 or partially incorporated.

By the way, the carrier 5 is provided with a wheel 9 that engages with the guide rail 4, and a wire (not shown) stretched around the guide rail 4 is fed and wound to travel on the guide rail 4 so as to be able to move up and down. ing.

Reference numeral 6 denotes a bucket having an open top surface for loading luggage 10. The bucket 6 is pivotally supported by the tip of the carrier 5, and an undulating cylinder 11 is arranged between the bucket 6 and the carrier 5, and the undulating cylinder 11 is provided. By this operation, the bucket 6 keeps its posture in a horizontal state and moves up and down on the guide rail 4 as the carrier 5 travels to carry the luggage 10 to a predetermined place. Also, this bucket 6 is the carrier 5
It is slidable in the front-rear direction by a slide mechanism provided between and.

Reference numeral 12 is a signal cable connected to the control device 7. The signal cable 12 is unwound and wound by a reel 13 provided at the tip of the base end guide rail of the guide rail 4 and unwound from the reel 13. ,
The signal cable 12 to be wound is guided by a pair of rollers 14, 14 provided on a reel 13 of a base end guide rail.

By the way, a detector 16 for detecting the lateral slide of the bucket 6 is attached to the uppermost end of the signal cable 12, and the sliding condition of the bucket 6 detected by the detector 16 is detected by the signal cable 12. It is adapted to be transmitted to the control device 7. In the figure, 15 indicates a sub rail.

Hereinafter, the operation of the present invention will be described with the above configuration.

First, the moving lift truck 1 is moved to a target work space and fixed, and then the turntable 3 is swung in a predetermined direction to extend the guide rail 4 and the tip end thereof is to be loaded to a desired high place. To face and fix. In this state, the carrier 5 is raised to raise the bucket 6 to a desired high place. The reel 13 of the signal cable 12 connected to the detector 16 for detecting the sliding state of the bucket 6 has its base guide rail. Since it is attached to the tip of the cable, the signal cable 12 is a signal cable for the base guide rail even when the guide rail 4 is extended to the maximum length.
12 can be shortened and it is positive in terms of weight, and it is possible to supply a stable signal without confusion. Further, the most important feature of the present invention is that the detector 16 is configured to be directly connected to the signal cable 12 as described above, so that it is not necessary to adopt a contactor structure for connecting both as in the conventional case. Therefore, there is no erroneous operation due to poor contact, etc., resulting in extremely high safety.

[Effect of device]

As described above, according to the present invention, as described above, the extending member in which the distal end guide rail is telescopically fitted into the base end guide rail is mounted on the movable dolly so that the extending member can be undulated and swung, and the extending member is mounted on the trolley. A signal cable mounting device for a lift vehicle in which a bucket that can be lifted and lowered on an extension member by an equipped lifting control device is slidably arranged back and forth, and a detector that detects a sliding condition of the bucket is mounted on the bucket. Further, a signal cable for transmitting a detection signal is stretched between the detector and the lifting control device, and a reel for feeding and winding the signal cable is provided near the tip of the base end guide rail, and the base end is provided. Since a pair of rollers for guiding and sandwiching and guiding the signal cable to be reeled out from the reel above the reel of the guide rail is supported. High lift work very reliable requires eliminates contact by contact between signal cable and bucket Doreru becomes possible to secure. Further, since the wiring work of the signal cable and the like can be simplified, it is possible to provide a very low cost signal cable mounting device for a lift vehicle.

[Brief description of drawings]

The drawing is a perspective view of a moving lift vehicle equipped with the present invention. DESCRIPTION OF SYMBOLS 1 ... Lifting vehicle, 2 ... Bogie, 3 ... Turntable, 4 ... Guide rail, 4a, 4b ... Telescopic cylinder, 5 ... Carrier, 6 ... Bucket, 7 ... Control device, 8 ... Elevating cylinder, 9 ... Wheel, 10 ... Luggage, 11 ... undulating cylinder, 12 ...
Signal cable, 13 ... reel, 14 ... sheave, 15 ... sub rail, 16 ... detector

Claims (1)

[Scope of utility model registration request] 1. An elevating member having a base end guide rail and a distal end guide rail which is telescopically fitted on a movable carriage so that the extension member can be lifted and swung, and the extension member is mounted on the carriage. A signal cable mounting device for a lift vehicle in which a bucket that can be moved up and down on an extension member by a control device is slidably arranged back and forth, wherein a detector for detecting the sliding condition of the bucket is mounted on the bucket, and the detection is performed. A signal cable that transmits a detection signal is stretched between the child and the lifting control device, and a reel for winding and winding the signal cable is provided near the tip of the base end guide rail, and the base end guide rail A pair of rollers that pivotally support above the reel a pair of rollers that sandwich and guide the signal cable that is unwound from the reel and wound up. Door car of the signal cable mounting device.