JPH0343780Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to a cable extension vehicle in which a cable drum is rotatably bridged between a pair of left and right bearing devices arranged on a loading platform of a vehicle.

(Prior Art) The idea of providing a temporary power supply line to avoid long-term power outages during construction work such as rebuilding utility poles is known. The one shown in FIG. 5 is a known example of a cable extension vehicle in which a cable drum A, on which a cable, which serves as the temporary power supply path, is wound is arranged on a loading platform.

Note that B is a transformer and C is a crane.

(Problems to be Solved by the Invention) By the way, since the cable drum is exposed to the rain on the loading platform, there is not only an aesthetic problem when the cables are not wound around the cable drum in an orderly manner, but also a problem caused by sunlight. There was a problem that cable deterioration progressed due to this.

(Means for Solving the Problems) The present invention solves the above problems by surrounding the cable drum with a cover frame and surrounding the cable drum with the cover frame in the cable extension car. The cover frame is configured to be movable in the front-back direction between a stored position in which the cover frame is opened and an open position in which the cover frame is partially or completely removed from the cover frame.

(Function) With this structure, when the cable is not in use, the cable drum is located in the storage position surrounded by the cover frame, so that deterioration of the cable due to sunlight can be prevented. In addition, by positioning the cable drum in the open position during cable feeding and winding work, it is possible to remove the end connector of the cable that is fixed in place on the cable drum, or to fix the end connector in the cable drum in the proper place. This makes it easier to put on clothes.

(Example) Next, the present invention will be explained according to a specific example.

FIG. 1 is a side view of the cable extension car, with reference numeral 1 a frame, 2 a loading platform, and 3 a gate surrounding the rear and sides of the loading platform 2. A crane 4 is installed on the frame 1 between the loading platform 2 and the driver's cab 5.
Reference numeral 6 designates a transformer storage unit in which a transformer is stored, and reference numeral 7 designates a cover frame having upper and lower spaces for storing a cable drum in its lower part and tools in its upper part. It is a body unit. The transformer storage unit 6 and the cover frame unit 7 are suspended by the crane 4 via hanging fittings 8 and 9 provided at their upper ends, respectively. When the crane 4 is stored, the boom 10 of the crane 4 is rested on a boom rest 11 provided on the cover frame unit 7 so as not to be able to rotate in the left-right direction, in a state oblique to the longitudinal direction of the vehicle when viewed from above. .

In FIG. 2, 12 is the cover frame unit 7.
This is a fixed board that is connected and fixed to the floor of the building. 13 is a movable base spaced apart above the fixed substrate 12.
Reference numeral 14 denotes a pair of hydraulic cylinders that are extendable and retractable in the longitudinal direction of the vehicle, and are spaced apart from each other in the left and right direction.The cylinder tube ends are pivotally supported by the fixed base plate 12, and the piston rod ends are pivotally supported by the movable base 13, respectively. 15
are rollers that support the movable base 13, are supported on the fixed substrate 12 side, and are arranged in pairs spaced apart from each other on the left and right. A pair of rollers 16 are supported by brackets projecting downward from the movable base 13 and are spaced apart from each other in the left-right direction, and roll on the fixed base plate 12. And these rollers 15,
The movable base 13 is supported on the fixed base plate 12 via 16, and the movable base 13 is moved relative to the fixed base plate 12 as the hydraulic cylinder 14 expands and contracts. Reference numeral 17 denotes brackets disposed at both left and right ends and at the center of the movable base 13, and a drum shaft 18 is fixedly supported on the brackets 17. Reference numeral 19 denotes a cable drum for winding a cable used as a temporary power supply path for high-voltage live lines, and is attached to the drum shaft 1 through a bearing (not shown).
It is rotatably supported around 8. As shown in FIG. 3, there are three cable drums 19, and these cable drums 19 are arranged parallel to and equidistant from the drum shaft 18, and spaced apart by 120 degrees around the drum shaft 18. They are integrally connected via three connecting rods (not shown) provided in the figure. Reference numeral 20 denotes a cable drum for winding a cable used as a temporary power supply path for low-voltage live lines, and is connected to the drum shaft 1 through a bearing (not shown).
It is rotatably supported around 8. There are four cable drums 20 as shown in FIG. 3, and these four cable drums are integrally connected to the drum shaft 18 through three connecting rods (not shown) that have the above-mentioned positional relationship. connected. 21
is a sprocket fixed to the cable drum 19 on the outer side of the flange of the cable drum 19 facing the bracket 17 among the three cable drums 19, and is connected to the chain while driving the hydraulic motor 22 provided on the movable base 13. As the sprocket 21 rotates, the three cable drums 19 rotate in the same direction. 24 is a sprocket that is fixedly arranged on the outside of the flange of the cable drum 20 facing the bracket 17 among the four cable drums 20, and is connected to the drive of the hydraulic motor 25 provided on the movable base 13. The four cable drums 20 rotate in the same direction as the sprocket 24 rotates. The cable drums 19 and 20 include
As shown in FIG.
7, 28 is wound up and the end connector 28 is connected to the cable drum 19,
Remove it from 20 and connect the end connector 2 to the live wire side.
7 are connected to the transformer side in the transformer housing unit 6, respectively. 30 is cable drum 1
It is a metal fitting provided in multiple pieces on the flanges of 9 and 20,
When the cable is not in use, the end connectors 27 and 28 are fastened to the metal fitting 30 by a fastening string 31. Then, the cable drum 1
9 and 20 are located in a storage position surrounded by the cover frame unit 7 when not working, but when working, the movable base 13 moves to the rear of the rear end of the loading platform 2 as the hydraulic cylinder 14 extends. 2 and placed in the open position shown by the two-dot chain line in FIG. Therefore, when in this open position, the end connectors 27, 28
The cover frame unit 7 does not impair its workability when removing the end connectors 27 and 28 from the metal fitting 30 or fixing the end connectors 27 and 28 to the metal fitting 30.

(Effects of the invention) With this invention, when the cable drum is not in use, the cable drum can be surrounded by the cover frame, which prevents the cable from deteriorating due to sunlight, and when the cable drum is in use, the cable drum can be surrounded by the cover frame. Since the end connector can be moved to the open position, it is possible to easily attach or detach the end connector to the cable drum.

[Brief explanation of the drawing]

Fig. 1 is a side view of a cable extension car showing an embodiment of the present invention, Fig. 2 is a side view showing the arrangement of cable drums housed in a cover frame unit, and Fig. FIG. 4 is an explanatory view showing a state in which cables are wound around a cable drum, and FIG. 5 is a side view of a conventional cable extension car. 2...Cargo platform, 19,20...Cable drum,
7...Cover frame unit.

Claims (1)

[Scope of Claim for Utility Model Registration] A cable extension vehicle in which a cable drum is rotatably bridged between a pair of left and right bearing devices arranged on a loading platform of a vehicle, the cable drum being surrounded by a cover frame, and A cable extension car characterized in that it is configured to be movable in the front and back direction between a storage position surrounded by the cover frame and an open position where the cover frame is partially or completely removed.