JP2536266Y2 - Antenna equipment for construction machinery - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a receiving antenna device equipped on both a construction machine such as a hydraulic shovel and an operator.

2. Description of the Related Art A hydraulic excavator is equipped with an antenna device for receiving a radio broadcast or the like. FIG. 4 is a perspective view of a hydraulic shovel equipped with a conventional antenna device.
In the drawing, 1 is a lower traveling body of a hydraulic shovel, 2 is an upper revolving superstructure, 3 is a counterweight mounted on a rear portion of the upper revolving superstructure 2, 4 is an engine hood, 5 is a cab,
Reference numeral 6 denotes a cab of the cab 5, 7 denotes a ceiling of the cab 6, 8 denotes an antenna, 9 denotes a work attachment mounted on the front portion of the upper swing body 2, and 10 denotes a boom of the work attachment 9.

The antenna device of the prior art is configured such that the antenna 8 is erected on the ceiling 7 of the cab 6 as shown in FIG.

Problems to be Solved by the Invention In the prior art antenna device, the antenna is erected on the ceiling of the cab, so when the excavator works in a mountainous area with many trees, for example, the antenna is attached to obstacles such as tree branches. Collision caused deformation or breakage of the antenna. Also, when the work attachment is being rotated in the front-rear direction, the boom interferes with the broadcast radio waves, so that the broadcast on the radio or the like may not be able to be caught. When the antenna was moved into the operator's cab and reception was performed, there was much noise due to the operation of the equipment in the excavator, and reception was not possible.

An object of the present invention is to solve the above-described problems and to provide an antenna device in which an antenna mounted on a hydraulic excavator does not collide with an external obstacle and does not receive radio interference due to a rotation operation of a boom. And

Means for Solving the Problems The measures of the present invention taken to solve the above problems are as follows: (1) a. B. Left and right pole members are erected on the upper side of the upper revolving structure so that the positions of the right and left rear end corners of the counterweight can be almost confirmed from the cab. An antenna feeder wire was stretched between the pole members.

(2) a. An antenna feeder wire was attached and fixed to the cab ceiling along the ceiling surface.

(3) a. An antenna feeder line was attached and fixed to the upper surface of the counterweight at the rear of the upper revolving structure along the upper surface.

Action (1) a. The pole member on which the antenna feeder wire is stretched can be visually checked by the driver from the cab. This makes it possible to prevent the antenna feeder wire stretched between the two pole members from colliding against an external obstacle when the hydraulic shovel performs turning, running, and the like. The driving operation can be performed so that the right and left rear end corners of the counterweight do not collide with the external obstacle.

B. Since both pole members are erected on the upper surface side of the rear part of the upper revolving structure, they are not affected by radio wave interference due to the rotation of the boom.

(2) a. Since the antenna feeder line is fixed to the cab ceiling along the ceiling surface, the antenna feeder line does not collide with an external obstacle.

B. Since the antenna feeder line in the above item a) is stretched in the horizontal direction along the cab ceiling surface, it is not affected by radio wave interference due to the rotation of the boom.

(3) Since the antenna feeder line is fixed along the upper surface of the counterweight, the antenna feeder line does not collide with an external obstacle.

B. Since the antenna feeder wire in the above item a) is stretched over the upper surface of the counterweight, it is not affected by radio wave interference due to the rotation of the boom.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is an oblique rear view of a main part of a hydraulic shovel equipped with the antenna device according to claim 1 of the present invention. In Fig, 2a the upper swing structure, 3a are counterweight, 5a cab, 6a cab of the cab 5a, 11 _L, 11 _R are left and right respectively pole member, 12 is a feeder line for the antenna. Next, the configuration and function of the antenna device of claim 1 will be described with reference to FIG. The upper surface side of the rear above the swing body 2a, erected left and right pawl member 11 _L and 11 _R as the left and right rear corners) and (b position of the counterweight 3a than the operating chamber 5a can be confirmed almost at both Pole members 11 _L and 11 _R
A feeder wire 12 for an antenna was stretched between them. Incidentally pole member 11 _L and 11 _R of the left and right by the L shape as in Figure 1, or may be one having a temporary FLEXIBLE. So,
Since the both pole member 11 _L and 11 _R to the driver can be visually confirmed from the cab 6a, the hydraulic excavator is turning, so as not to collide the antenna feed line 12 when performing traveling and the external obstacle be able to. The driving operation can be performed so that the left and right rear corners A and B of the counterweight 3a do not collide with an external obstacle.

Next, FIG. 2 is a perspective view of a main part showing a cab 6b equipped with the antenna device according to claim 2 of the present invention.
In the figure, 7b is a ceiling of the cab 6b, and 13 is an antenna feeder line. Next, the configuration and function of the antenna device of claim 2 will be described with reference to FIG. The antenna feeder line 13 is placed on the ceiling 7b of the cab 6b along the ceiling surface.
Was fixed. Since the outer side of the ceiling 7b of the cab 6b is fixed to the inner side of the cab 6b along the ceiling, the antenna feeder line 13 does not collide with an external obstacle. Since the antenna feeder line 13 is stretched in the horizontal direction along the ceiling surface of the cab 6b, the boom (reference numeral 1 shown in FIG. 4) is used.
0) There is no influence of radio interference due to rotation.

Next, FIG. 3 is a perspective view of a main part of a hydraulic shovel equipped with the antenna device according to claim 3 of the present invention.
In the figure, 2c is the upper revolving superstructure, 3c is the counterweight,
5c is a cab, and 14 is an antenna feeder line. next,
The configuration and the function of the antenna device according to claim 3 are the same as those of the third embodiment.
Referring to FIG. An antenna feed line 14 was attached and fixed to the upper surface c of the counterweight 3c at the rear of the upper revolving structure 2c along the upper surface C. Since the antenna feeder line 14 is attached and fixed along the upper surface c of the counterweight 3c, the antenna feeder line 14 does not collide with an external obstacle. In addition, the above-mentioned antenna feeder wire 14
Is spread over the upper surface c of the counterweight 3c, so that it is not affected by radio wave interference due to the rotation of the boom.

Effect of the Invention Since the antenna device of the prior art has the antenna erected on the ceiling of the cab, when the excavator works in a mountainous area with many trees, for example, the antenna collides with an obstacle such as a tree branch, and the antenna Was deformed or broken. Also, when the work attachment is being rotated in the front-rear direction, the boom interferes with the broadcast radio waves, so that the broadcast on the radio or the like may not be able to be caught.

However, in the antenna device according to the present invention, the left and right poles are erected so that the positions of the right and left rear end corners of the counterweight can be substantially confirmed from the driving quality, and the antenna feeder wire is stretched between the two pole members. I was sorry. Also, an antenna feeder wire is attached and fixed to the ceiling of the cab for the driver's cab along the ceiling surface. Also, an antenna feeder line is attached and fixed to the upper surface of the counterweight at the rear of the upper revolving unit along the upper surface. Thus, the antenna mounted on the hydraulic excavator does not collide with an external obstacle and does not receive radio wave interference due to the rotation operation of the boom. In the antenna device in which the left and right pole members are erected so that the positions of the left and right rear end corners of the counterweight can be substantially confirmed from the operator's cab, and an Anna feeder wire is stretched between the two pole members, The driving operation can be performed while also preventing the left and right rear end corners of the counterweight from colliding against an external obstacle.

Therefore, in a construction machine, a work vehicle, or the like equipped with the antenna device according to the present invention, the receiving function and maintenance of the antenna are improved.

[Brief description of the drawings]

FIGS. 1, 2, and 3 are diagrams showing antenna devices according to claims 1, 2, and 3, respectively, according to the present invention;
FIG. 4 is a perspective view of a hydraulic shovel equipped with a conventional antenna device. 2,2a, 2c… Top revolving superstructure 3,3a, 3c …… Counter weight 5,5a, 5c …… Drive cab 6,6a, 6b …… Cab 7,7b …… Ceiling 8 …… Antenna 9 …… Work attachment 10 ...... boom 11 _L, 11 _R ...... pole members 12, 13, 14 ...... feeder line antenna

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Koichiro Niwata 731-1 Minamishitazu, Gion-cho, Asanami-ku, Hiroshima, Hiroshima Hiroshima Prefecture Examiner Tsuneaki Onomura

Claims (3)

(57) [Scope of request for utility model registration] In a receiving antenna device mounted on a construction machine, left and right pole members are set up on an upper surface side of a rear portion of an upper revolving structure so that positions of right and left rear end corners of a counterweight can be almost confirmed from an operator's cab. An antenna device for a construction machine, wherein an antenna feeder wire is stretched between the pole members. 2. The antenna device for a construction machine according to claim 1, wherein an antenna feeder line is fixed to a ceiling of a cab for an operator's cab along a ceiling surface of the cab. 3. A receiving antenna device mounted on a construction machine, wherein:
An antenna device for a construction machine, wherein an antenna feeder wire is attached and fixed along an upper surface thereof.