JP2000272839A - Mobile layable cable drum device for aerial - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily move outside of an aerial zone by comprising a structure for horizontally moving a drum frame, and a structure for rotating and moving the drum frame downwardly by 180 deg. from an aerial mounting surface. SOLUTION: A drum frame 2 is connected to a slide base 3 so that it is rotated by a worm gear 5. The slide base 3 is horizontally movably fitted in a groove of a mounting base 4 fixed to a trailer. The drum frame 2 is fixed to the mounting base 4 by a quick release pin 6 at an opposite side of the worm gear 5, so that it can be easily mounted and demounted. To obtain an operatable state, first of all, the quick release pin 6 is drawn out to release a fixing state. Then the drum frame 2 is horizontally moved to a rear part of the trailer until a rear end of the slide base 3 collides with a terminal end of the groove of the mounting base 4 and stops. Then the drum frame 2 is rotated by 180 deg. on the worm gear.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retractable cable drum device, and more particularly to a retractable cable drum device applicable to a movable antenna installed in a covered area of a movable antenna installed on a trailer.

[0002]

2. Description of the Related Art Conventionally, a cable drum device applied to a mobile antenna installed in a covered area of a mobile antenna installed on a trailer is as disclosed in Japanese Patent No. 2679672, for example. Since the cable for connecting the antenna to the transmitter located elsewhere is wound on the cable drum device, the height of the cable also affects the area covered by the antenna.

[0003]

A first problem of the conventional cable drum device is that it is difficult to operate the antenna during operation of the antenna.
There is a problem that the cable drum device blocks the antenna coverage area.

[0004] In operation, if the cable drum device is removed or moved, such a problem does not occur. However, when the installation space of the antenna is narrow, or when the time until the antenna is put into operation needs to be shortened. For example, removing and moving the cable drum device installed near the antenna required a considerable amount of work. For example, when the cable drum is detached only during the operation of the aerial, if the weight of the cable drum is about 100 kg, a special jig is required, and it takes 20 to 30 minutes for a few workers.

Accordingly, the present invention has been proposed in order to solve the problems of the conventional cable drum device, and an object of the present invention is to install the cable drum device in the vicinity of an antenna and to use a small number of personnel. An object of the present invention is to provide a movable aerial antenna applicable retractable cable drum device which can be used in a short time.

[0006]

In order to achieve the above object, the present invention provides a cable drum device installed near an antenna, a structure for moving the drum frame horizontally, and a structure in which the drum frame is positioned below the antenna mounting surface. A movable type antenna-equipped foldable cable drum device having a structure for rotating by 180 ° is obtained.

According to the present invention having the above structure, the cable drum device is moved below the antenna mounting surface during the operation of the antenna, so that the antenna coverage area is not obstructed.
In addition, when the cable drum device is stored, it is only necessary to rotate and horizontally move the cable drum device, and it is possible for one person to store in about 5 minutes.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention installed on a trailer will be described with reference to the drawings.
FIG. 1 is an external view of a state in which a cable drum device 1 according to the present proposal is mounted on a trailer 9 on which an antenna 8 is fixedly installed. 2 and 3 are an external view and a cross-sectional view from the side showing the configuration of the cable drum device.

In FIG. 1, the cable drum device 1 is mounted on a trailer 9 on which an antenna 8 is fixedly installed. 2 and 3, the drum frame 2 is connected to a slide base 3 so as to rotate by a worm gear 5. The slide table 3 is fitted in a groove of a mounting table 4 fixed to a trailer so as to be able to move horizontally. The drum frame 2 is fixed on the opposite side of the worm gear 5 by a quick release pin 6 so that it can be easily attached to and detached from the mounting base 4.

Next, regarding the operation of the embodiment of the present invention,
The transportation state mounted on the trailer, the movement state of the cable drum, and the operation state during the antenna operation will be described with reference to FIGS. During transportation, the drum frame 2 is firmly fixed to the mounting base 4 by the quick release pins 6 and the flange of the slide base 3 as shown in FIG.

[0011] To put it in the operating state, the quick release pin 6 is first pulled out to release the fixing. Next, the drum frame 2 is moved horizontally to the rear of the trailer as shown in FIG. 4 until the rear end of the slide base 3 hits the end of the groove of the mounting base 4 and stops. Finally, the drum frame 2 is rotated by 180 ° about the worm gear 5 to bring it into an operation state. To return to the transported state, perform the reverse procedure.

[0012]

The effect of the present invention is that even a large cable drum device can be easily moved out of the antenna coverage area. The reason is that it has a slide base for moving the cable drum horizontally and a worm gear capable of rotating the cable drum up and down by manual operation force.

[Brief description of the drawings]

FIG. 1 is an external view illustrating an embodiment of the present invention.

FIG. 2 is an external view of a transport state according to the embodiment of the present invention.

FIG. 3 is a cross-sectional view of an appearance of a transport state according to the embodiment of the present invention.

FIG. 4 is an external view of an operation state according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cable drum 2 Drum frame 3 Slide stand 4 Mounting stand 5 Worm gear 6 Quick release pin 7 Cushion 8 Antenna 9 Trailer

Claims (4)

[Claims] 1. A cable drum device installed in a covered area of an antenna, wherein a mounting table, a slide table fitted to the mounting table so as to move horizontally, and a cable drum mounted on the slide table so as to rotate by a worm gear are provided inside. A retractable cable drum device comprising a drum frame housed in a housing and a quick release pin capable of fixing and releasing the drum frame to and from a mounting base. 2. A retractable cable drum device installed in a covered area of an antenna installed on a trailer, comprising: a drum mount mounted on a trailer; and a slide mount slidable with respect to the drum mount. And a drum frame attached to the slide base and housing the cable drum therein, and a tiltable mechanism for tilting the drum frame while the slide base is slid. 3. The retractable cable drum device according to claim 2, further comprising a fixture for fixing the drum frame to the mounting table when the slide table is not slid. 4. A structure for moving a drum frame horizontally in a cable drum installed near an antenna.
A movable antenna-applicable retractable cable drum device having a structure for rotating a drum frame by 180 ° below an antenna mounting surface.