JPS5915739Y2 - Vehicle fender mounting structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a fender mounting structure for a vehicle such as a tractor, and an object of the present invention is to facilitate the disassembly and assembly of the rear axle housing during maintenance, inspection, etc. related to the rear axle.

2. Description of the Related Art Some vehicles, such as tractors, have a rear axle housing mounted on both sides of the rear part of the vehicle body through a large-diameter housing part, and a planetary speed reduction device, a brake device, etc. are built into the large-diameter housing part.

In this type of vehicle, the front end of the rear wheel fender is attached to the steps on both sides of the vehicle body, the middle part is attached to the floor cover below the driver's seat, and the rear end is attached to the rear axle housing. If there is a large-diameter housing part on the inner end of the axle housing in the lateral direction, this large-diameter housing part will interfere with the fender, so if you just disconnect the fender from the rear axle housing, the fender will get in the way. , the rear axle housing could not be removed.

Therefore, when maintaining or inspecting the rear axle, it is necessary to remove the fender and open both sides of the rear of the vehicle body, and then disassemble the rear axle housing. In the case where the cabin frame and the safety frame are attached to the fender, these also have to be completely removed, making the work extremely complicated.

The present invention has been developed to solve these conventional problems, and its features are that side frames are removably installed on both sides of the car body, and side frames are installed on both sides of the car body. In vehicles where part of the fender is supported by the rear axle housing attached through the large diameter housing part, the rear end of the side frame is removably attached to the rear axle housing, and the fender mounting part is large. It is located above the diameter housing portion, and this attachment portion is detachably attached to the side frame.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.
In the drawings to FIG. 4, reference numeral 1 denotes a tractor body having a transmission case or the like as a structure, and a hydraulic system for raising and lowering a working machine is mounted at the rear of the tractor body 1.

A rear axle housing 2 rotatably holds the rear axle 3, and is provided laterally on both sides of the rear of the tractor body 1 via a large-diameter housing portion 4.

The large-diameter housing part 4 is integral with or separate from the rear axle housing 2, and a planetary reduction gear and a brake device are built into the large-diameter housing part 4.

Reference numeral 5 denotes side frames for mounting work equipment placed on both sides of the tractor body 1, including an L-shaped front mounting base 6, a U-shaped rear mounting base 7, and side frame members in the front-rear direction that connect them. 8, a work equipment mounting plate 9 attached to the front end of the side frame member 8, and the like.

The front mounting base 6 is detachably attached to the tractor body 1 at approximately the center in the front-rear direction using mounting bolts 10.11 from two directions: the side surface and the bottom surface.

The rear mounting base 7 and the side frame members 8 are approximately linear, and the rear mounting base 7 is collinear with the check chain bracket 12 by the mounting bolts 13 so as to sandwich the rear axle housing 2 from above and below. The upper part of the rear mounting base 7 is a fender mounting surface 14.

The work equipment mounting plate 9 has a required number of mounting holes 15, and a mounting frame 17 for, for example, a front loader 16 is removably bolted thereto.

Reference numeral 18 denotes steps, which are attached to both sides of the tractor body 1.

19 is a rear wheel detachably attached to the flange portion 20 of the rear axle 3, 21 is a fender placed inside this rear wheel 19, the front end is a step 18, the middle part is a floor cover, and the rear end is a fender. Lower mounting portions 22 are mounted on the fender mounting surfaces 14 of the rear mounting base 7, respectively.

The mounting portion 22 of the fender 21 is located above the large-diameter housing portion 4, and the distance A between the mounting portion 22 and the axis of the rear axle 3 is equal to the radius B of the large-diameter housing portion 4.
is larger than

Note that the mounting portion 22 of this fender 21 is provided with a vibration isolating material 23.
24, the rear mounting base 7 via bolts 25, nuts 26, etc.
It is removably attached to the fender mounting surface 14 of.

In the above configuration, the pair of left and right side frames 5 are connected to the tractor body 1.
It is always equipped on both sides of the machine and is used for attaching work equipment.

That is, when using the front loader 16 or the like, the mounting frame 17 of the front loader 16 is attached to the work equipment mounting plate 9 at the front end of each side frame 5.

By attaching the work equipment to the side frame 5 in this way, the load of the work equipment is not directly applied to the tractor body 1. Therefore, even if the tractor body 1 is made up of a plurality of housings connected by bolts, Breakage of the bolt can be prevented.

The side frame 5 was originally provided for reinforcing the tractor body 1 as described above, but this side frame 5 is also used for attaching the fender 21.

Therefore, when disassembling the rear axle 3 related items, especially the planetary reduction gear, brake device, etc. inside the large-diameter housing part 4 during vehicle inspection, etc., first disassemble the rear axle 19 from the flange part 20 of the rear axle 3.
After removing the bolts 25 and nuts 26, remove the mounting part 22 of the fender 21 from the fender mounting surface 14 of the rear mounting base 7, remove the mounting bolt 13, and remove the rear mounting base 7 and check chain bracket 12. The side frame 5 is completely removed from the tractor body 1 by releasing it from the rear axle housing 2 and then removing the front mounting base 6 from the tractor body 1.

Then, the vicinity of the rear axle housing 2 becomes open and the large diameter housing part 4 is exposed to the side, so after removing the rear axle 3 from the rear axle housing 2, remove the mounting bolts and remove the rear axle housing 2 and the large diameter housing part 4. The diameter housing portion 4 is removed from the tractor body 1 and pulled out laterally outward.

At this time, since the mounting part 22 of the fender 21 is located above the large-diameter housing part 4, they do not interfere with each other, and the mounting part 22 of the fender 21 is moved laterally outward along the axis of the rear axle housing. 2 and large diameter housing part 4
can be extracted.

Note that when the rear axle housing 2 is separate from the large diameter housing part 4, a mounting flange part having approximately the same diameter as the large diameter housing part 4 is provided at the inner end of the rear axle housing 2.

In some cases, only a brake device is provided within the large-diameter housing portion 4.

The structure of the side frame 5 is not limited to the above embodiment,
For example, as shown in FIGS. 5 to 8, it is also possible to provide the side frame members 8 and the rear mounting base 7 at different levels.

In this case, since the position of the side frame member 8 is lowered relative to the tractor body 1, the overall center of gravity is lowered, stability is improved, and the mounting position of the step 18 can also be lowered.

Note that this rear mounting base 7 is a flat housing mounting plate 27.
, an inverted fender mounting plate 28 welded to one end edge thereof, and a reinforcing plate 29 interposed between both free ends.

In this invention, the mounting part of the fender that faces the rear axle housing is located above the large-diameter housing part, so a part of the fender is supported on the rear axle housing side. Despite this, the rear axle housing can be removed laterally outward without interfering with the fender, and the rear axle housing can be easily disassembled and assembled.

In particular, since there is no need to remove the fender, it can be used on vehicles with cabins, safety frames, etc. attached to the fender.
Its practical value is extremely significant.

In addition, the fender mounting part is attached to the rear axle housing via the side frames placed on both sides of the vehicle body, and the side frames function as a kind of spacer, so there is no need for any special parts, and the structure is It is also easy.

[Brief explanation of drawings]

1 to 4 illustrate one embodiment of the present invention, in which FIG. 1 is a schematic side view of the whole, FIG. 2 is a plan view of the main part, and FIG. 3 is the same as that of FIG. X-X arrow view, Figure 4 is the 1st
The Y-Y line arrow view in the figure and FIGS. 5 to 8 illustrate other embodiments of the present invention, in which FIG. 5 is a plan view of the side frame, and FIG. 6 is a side view of the same. , Figure 7 is a side view of the installed state, Figure 8 is a side view of the installed state.
The figure is a rear view of the same. 1... Tractor body, 2... Rear axle housing, 4... Large diameter housing part, 5...
...Side frame, 7...Rear mounting base, 14...
...Fender mounting surface, 19...Rear wheel, 21.
...Fender-122...Mounting part.

Claims (1)

[Scope of utility model registration request] In a vehicle in which side frames are removably installed in parallel on both sides of the vehicle body, and a part of the fender is supported by rear axle housings attached to both sides of the vehicle body via large-diameter housing parts, A vehicle characterized in that an end portion is removably attached to a rear axle housing, a fender attachment portion is positioned above the large diameter housing portion, and the attachment portion is detachably attached to a side frame. fender mounting structure.