JP2571910Y2 - Power supply equipment for construction machinery - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device in the vicinity of a front window in a cab for a cab mounted on a construction machine, a work vehicle or the like.

[0002]

2. Description of the Related Art FIG. 4 is a sectional side view showing a cab 1 of a hydraulic shovel (not shown) of a construction machine. 2 is a roller guide rail fixedly provided on the inner wall surface of the cab 1, 3 is a front window, 4 is a roller mounted on the left and right sides of the front window 3, 5
Is a window lock motor, 6 is a wiper motor, and 7 is a lower window. FIG. 5 is a cross-sectional view of a main part taken along line AA in FIG. In the figure, reference numeral 8 denotes a curl-shaped (helical) harness connected to the wind lock motor 5. FIG. 6 is a sectional view showing the wiper device of the front window 3. In the figure, reference numeral 9 denotes a plug-in / removable connector interposed between the wiper motor 6 and a power supply (not shown), and reference numeral 10 denotes a harness.

Next, a cab 1 and a front window 3 according to the prior art will be described with reference to FIGS. A front window 3 is provided on the front view of the cab 1, and left and right roller guide rails 2 are arranged in parallel with the inner wall surface of the cab 1. The front wind 3 is opened and closed by moving the roller 4 along the same direction.
Such as electrical equipment is attached.

[0004]

In the cab of the prior art, the curl-shaped harness of the wind lock motor attached to the front window hangs and hinders the appearance, and the appearance is poor. Also, when opening / closing the front window, the plug-in / removable connector had to be attached and detached, which was troublesome for each time. The purpose of the present invention is to solve the above problems.

[0005]

According to the power supply device of the present invention,
When a cord reel for winding the harness of the electric device attached to the front window is provided on the upper inside of the cab, and a harness guide rail for guiding the harness is formed along the roller guide rail to open and close the front window. The harness is moved along a harness guide rail, and the harness is wound around the cord reel and wound back. A long guide hole is formed on the harness guide rail along the guide direction, a clip member is movably mounted along the long guide hole, and a part of the harness is stopped at the clip member. Both can be moved along the harness guide rail.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional side view of a main part showing a cab 11 provided with a power supply device of the present invention. 2 'is cab 11
Roller guide rail fixed to the inner wall surface of the front window, 3 'is a front window, 4' is a roller mounted on the left and right sides of the front window 3 ', 5' is a window lock motor, 6 'is a wiper motor , 12 is a harness guide rail, 13 is a code reel, 14 is a cab 1
1 is a cord reel mounting seat provided on the upper inside side of 1. FIG.
FIG. 2 is a cross-sectional view of a main part viewed from BB in FIG. 1. FIG.
FIG. 3 is a detailed view of a part C in FIG. 2. In the figure, reference numeral 15 denotes an elongated guide hole formed in the harness guide rail 12, reference numeral 16 denotes a clip member, reference numeral 17 denotes a harness connected to the wind lock motor 5 ', and reference numeral 18 denotes a harness connected to the wiper motor 6'.

Next, the configuration of the power supply device of the present invention will be described with reference to FIGS. In the power supply device of the present invention, a cord reel 13 for winding the harnesses 17 and 18 of the wind lock motor 5 'and the wiper motor 6' attached to the front window 3 'is provided on the upper inside of the cab 11.
A harness guide rail 12 for guiding the harnesses 17 and 18 is formed along the roller guide rail 2 ', and when the front window 3' is opened and closed, the harnesses 17 and 18 are moved along the harness guide rail 12 and The harnesses 17 and 18 are wound around the code reel 13 and rewinded. Further, a guide slot 15 is formed in the harness guide rail 12 along the guide direction, and a clip member 16 is movably mounted along the guide slot 15, and the clip member 16 is
Part of the harness (17, 18) is stopped at the harness (1
7, 18) and the clip member 16 can both move along the harness guide rail 12. In the power supply device of the present invention, the harness guide rails 12 do not always have to be provided symmetrically as shown in FIG. The harness guide rail may be provided on only one of the inner wall surfaces of the cab. Further, the mounting position of the code reel 13 is not limited to the upper portion inside the cab 11, but may be set to another position according to the current situation. The code reel (1
The number of attachments in 3) may be plural.

Next, the operation of the power supply device of the present invention will be described. In the present invention, the cord reels 13 for winding the harnesses 17, 18 of the wind lock motor 5 'and the wiper motor 6' are provided.
It is no longer necessary to curl 8 or provide a connector. Since the harnesses 17 and 18 wound on the cord reel 13 are connected to a power supply (not shown), power is not supplied to the wind lock motor 5 'and the wiper motor 6' without any trouble. In addition, a clip member 16 is attached to a guide elongated hole 15 formed in the guide direction of the harness guide rail 12 (the collar member a shown in FIG. And a part of the harness (17, 18) is fixed to the clip member 16. Therefore, when the driver opens and closes the front window (3 ′), the harness (17, 18) does not separate from the harness guide rail 12 and the harness (1
7, 18) and the clip member 16 both move along the harness guide rail 12. Then, the moved harness (17, 18) is wound or unwound on the code reel 13, so that there is no problem that the harness (17, 18) hangs down.

[0009]

[Effect of the Invention] In the cab equipped on the hydraulic excavator, the curl-shaped harness of the wind lock motor attached to the front window hangs down and becomes obstructive, and the appearance is poor. Also, each time the front window was opened and closed, the connector had to be detached and attached, which was troublesome. However, in the power supply device of the present invention, a harness guide rail for guiding the harness is disposed along the roller guide rail, a long guide hole is formed in the harness guide rail, and the clip member is movable along the long guide hole. The harness clip member can be moved together along the harness guide rail, and the harness is wound around a cord reel when the front window is opened and closed. This eliminates the need for curling the harness or providing a connector. Since the harness wound around the cord reel is connected to the power supply, power can be supplied to electric devices such as a wind lock motor and a wiper motor attached to the front window without any trouble. Further, since both the clip member and the harness attached to the guide elongated hole of the harness guide rail are moved along the harness guide rail, there is no problem that the harness detaches from the harness guide rail or hangs down. Therefore, in the construction machine provided with the power supply device of the present invention, the operability of opening and closing the front window can be improved and the aesthetic appearance in the cab can be enhanced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing a cab having a power supply device of the present invention.

FIG. 2 is a cross-sectional view of a main part taken along line BB in FIG.

FIG. 3 is a detailed view of a part C in FIG. 2;

FIG. 4 is a cross-sectional side view of a main part of a conventional cab of a hydraulic shovel.

FIG. 5 is a cross-sectional view of a main part taken along line AA in FIG. 4;

FIG. 6 is a sectional view showing a conventional wiper device attached to a front window.

[Explanation of symbols]

 1,11 Cab 2,2 'Roller guide rail 3,3' Front window 4,4 'Roller 5,5' Window lock motor 6,6 'Wiper motor 8,10,17,18 Harness 9 Connector 12 Harness guide rail 13 Code Reel 15 Guide slot 16 Clip member

Claims (2)

(57) [Scope of request for utility model registration] 1. A front window is provided on a front portion of a cab, left and right roller guide rails are provided in parallel with an inner wall surface of the cab, and rollers are mounted on left and right sides of the front window. A cord reel for winding the harness of an electric device attached to the front window in a cab with electric devices such as a wind lock motor and a wiper motor attached to the front window so as to open and close the front window by moving rollers. On the upper inside of the cab,
A harness guide rail for guiding the harness is formed along the roller guide rail, and when the front window is opened and closed, the harness is moved along the harness guide rail, and the harness is wound and wound on the code reel. A power supply device for a construction machine, characterized in that the power supply device is configured as described above. 2. A power supply device for a construction machine according to claim 1, wherein the harness guide rail is formed with a guide elongated hole along the guide direction, and is movable along the guide elongated hole. A power supply device for a construction machine, wherein a clip member is attached and a part of a harness is fixed to the clip member so that both the harness and the clip member can move along a harness guide rail.