JP2960847B2 - Control tower structure of work equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control tower structure of a working machine such as a wheel loader, a transport vehicle, a front mount lawn mower and the like.

[0002]

2. Description of the Related Art Conventionally, as shown in Japanese Utility Model Laid-Open Publication No. 1-174449, a control tower having an upper wall formed on an operation panel surface is erected from the floor and obliquely from the rear face of the control tower. In general, the steering column has a structure in which a steering column is protruded upward and rearward.

[0003]

In the above-mentioned structure, the root portions of the forward / reverse switching lever and the turn signal lever attached to the steering column are exposed, and their appearance is inferior. There is still room for improvement, because water is likely to enter and switch contact failure of the lever is likely to occur. An object of the present invention is to rationally configure a control tower cover for improving appearance and contributing to eliminating malfunction of an electric system.

[0004]

The present invention for achieving the above object In order to achieve the above, the rearward tilting of the steering column to the floor of the operating unit
Operation to cover the steering column.
A vertical tower cover, wherein the control tower cover is
Divided into front and rear by the horizontal dividing surface including the
Split structure of the divided first cover member and second cover member
And the above-mentioned divided surface of the control tower cover
Set it near the rear of the control tower cover to
Wide first cover member located on the front side of the dividing surface of the bar
Is formed on the operation panel surface where the instruments are installed.
It is characterized in that that.

[0005]

[Function] The steering column is covered by the control tower cover, which can hide the poorly designed parts such as the electric switch and the pivoting mechanism of the lever. Be improved. The upper surface of the control tower cover is used as an operation panel surface on which instruments such as a traveling speedometer and a monitor lamp are arranged. For example, as in a control tower of a mower disclosed in Japanese Patent Application Laid-Open No. 5-68409, an operation panel surface is provided. This is advantageous in that the number of parts can be reduced as compared with a structure in which is provided independently.

[0006] Since the control tower cover has a split structure in which the first cover member and the second cover member are joined in the front-rear direction , for example, if the second cover member is removed,
The mating surface of the cover is opened so that the instruments attached to the upper surface of the first cover member can be inspected and maintained, and the instruments attached to the upper surface of the removed second cover can be inspected and maintained. That is, inspection and maintenance of the interior parts can be performed by removing the cover member on one side.

[0007]

Therefore, by constructing the control tower cover with two parts that are aligned in the front-rear direction , it is possible to reduce the number of parts by using the upper surface of the cover as the operation panel surface and reduce the cost, and also to reduce the parts such as instruments and switches. A reasonable control tower cover structure was obtained, which improved the appearance while allowing replacement and maintenance without any problems.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings when applied to a wheel loader as an example of a working machine. FIG. 4 shows a wheel loader, wherein 1 is a front body having a driving front wheel 8, 2 is a rear body having a driving rear wheel 9, 3 is a loader device, 4 is a cabin, 5 is an engine, and 6 is a driving unit. , 7 are hydraulic oil tanks.

As shown in FIG. 1 and FIG. 2, a control tower 12 having a steering handle 11 on an upper part thereof is provided on a floor 10 of an operating unit 6.
Is erected. The steering tower 12 is a steering column 1 that rotatably supports a steering handle 11 with respect to an iron plate support frame 13 that is raised from the floor 10.
4 is fixed in a rearwardly inclined posture, and a control tower cover 17 having a split structure formed by a front cover (corresponding to a first cover member) 15 and a rear cover (corresponding to a second cover member) 16 made of resin. Is provided. Therefore, before
The division surface between the cover 15 and the rear cover 16 extends in the left-right direction.
Together with those located near the rear of the control tower cover 17
It has become. The order of assembly is as follows. First, the rear cover 16 is bolted to the support frame 13 and then the front cover 1
5 is bolted to the rear cover 16 and the support frame 13.

Upper surfaces 15a and 16a are formed on the front cover 15 and the rear cover 16, respectively, so that the upper surface of the control tower cover 17 becomes an operation panel surface on which various instruments are mounted. Incidentally, the fuel gauge 1 is provided on the upper surface of the control tower cover 17.
8, odometer 19, water temperature gauge 20, various monitor lamps 21 (equipped on the front cover 15), knob 22 for locking the forward / reverse switching lever 27, headlight switch 23, hazard switch 24, parking switch 25, low-speed hold A switch 26 (equipped on the rear cover 16) is attached. A forward / reverse switching lever 27 is provided on the left side of the split surface of the front and rear covers 15 and 16, a turn signal lever 28 is provided on the right side, and a main switch 29 is provided on the right side of the front cover 15. I have.

Further, brake pedals 30, 30 are provided on the left and right sides of the support frame 13, and an accelerator pedal 31 is provided on the right side. The cabin 4 and the control tower 12 are connected without any gap, and the control tower 12
Even if cold air flows into the inside, it does not reach inside the cabin 4.

A rear cover 3 on which an engine bonnet 32 and a tail lamp 33 are mounted is provided at the rear of the rear body 2.
4, a weight 35 and the like are provided, and as shown in FIG. 3A, a rear cover 34 is attached to the stay 37 by two wing bolts 38 with respect to a stay 37 of the rear frame 36. As shown in FIG. 3B, when the engine bonnet 32 is closed, the operation of the wing bolt 38 is inhibited so as to be impossible.

Further, as shown in FIG.
Vertical reinforcing plates 34a, 34a are fixed to the inside of the rear cover 34. The left and right reinforcing plates 34a, 34a allow the cooling exhaust air of the radiator 39 to flow through the opening 34b of the rear cover 34.
An air guide passage for discharging air from the like is formed.

As shown in FIG. 5, a thick fitting portion 34c is formed.
The rear cover 34 may be formed of a resin material integrally formed with the pair of the above, and a cushion rubber portion 37 a having an insertion hole may be attached to the stay 37 of the rear frame 36. That is,
The rear cover 34 is attached by fitting. When the engine hood 32 is closed, the rear cover 34 does not come off naturally.

As shown in FIG. 4, the hydraulic oil tank 7 is provided with an oil level gauge 40 and a pressure switch 41. The pressure switch 41 detects the tank internal pressure after refueling. For example, when a warning lamp is turned on when the pressure exceeds a predetermined value, the oil level gauge 40 may be damaged or the tank may be deformed due to too much oil. Can be prevented beforehand.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a side view of a control tower.

FIG. 2 is a perspective view showing an arrangement of instruments of a control tower.

FIG. 3 is a perspective view showing a mounting structure of a rear cover.

FIG. 4 is a side view of the wheel loader.

FIG. 5 is a perspective view showing another mounting structure of the rear cover.

[Explanation of symbols]

 Reference Signs List 10 floor 14 steering column 15 first cover member 16 second cover member 17 control tower cover

Claims (1)

(57) [Claims] 1. A steering column (14) is erected on a floor (10) of a driving section in a rearwardly inclined posture.
Equipped with a control tower cover (17) that covers around the
The steering tower cover (17) is attached to the steering
Divided back and forth on the left and right division plane including the ram (14) part
The first cover member (15) and the second cover member (1
6) and the control tower
The division surface of the cover (17) is connected to the control tower cover (17).
Set it near the rear side of the control tower cover (17)
The wide first cover member (1) located on the front side of the division surface
5) The upper surface is formed on the operation panel surface where instruments are installed.
Control tower structure of a working machine.