JPH0357581Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a fender mounting base for attaching a rear wheel fender to a rear axle case.

(Prior art) When changing to larger diameter tires for a traveling vehicle such as a tractor, a fender is installed between the rear axle case and the fender in order to adjust the position of the rear wheel fender forward and upward. A table is interposed.
Further, a fender mounting base is also used to share the rear wheel fender of a small tractor with a large tractor.

As shown in FIG. 8, the conventional fender mounting base 13' has upper and lower flat plates 41 and 42 arranged in parallel, a plurality of blocks 43 inserted between them, and each upper and lower surface welded to the flat plates 41 and 42. Side plates 44 forming the front and rear surfaces or side surfaces are welded to the upper and lower flat plates 41 and 42, and holes for bolts for attaching to the rear axle case and bolts for attaching the rear wheel fender are provided at positions corresponding to the blocks 43. holes 19a, 19b for
It has a hole in it.

(Problems to be Solved by the Invention) In the conventional mounting base 13, all the members must be welded, and the welding positions are inside the upper and lower flat plates 41, 42, and the welding work and the block 43 must be welded. Since the block 43 is not visible from the outside of the flat plates 41 and 42, it is difficult to drill all the holes, resulting in poor productivity and high cost.

(Means for Solving the Problems) In the present invention, a plurality of rods 27 are vertically penetrated and welded to a rectangular tube 26, and holes 17 and 19 for mounting bolts are bored in the ends of the rods 27. By providing this, it is possible to solve all the problems of the conventional techniques.

That is, the specific configuration of the problem solving means of the present invention is characterized by a hole 17 for a bolt for mounting on the rear axle case 7 of the traveling vehicle 1;
In a fender mounting base having holes 19 for bolts for mounting the rear wheel fender 8 on the top surface A of the base, a plurality of rods 27 are mounted vertically in a square tube 26 having upper and lower surfaces A and B. The holes 17 and 19 are formed at the ends of the plurality of rods 27 by through welding.

(Function) It is no longer necessary to weld the side plates of the square tube 26,
Since the plurality of bars 27 penetrate the square tube 26 in the vertical direction, the welding position is the outer surface of the square tube 26, and the ends of the bars 27 are exposed from the upper and lower surfaces A and B of the square tube 26, and the holes 17 , 19 will be clarified.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In Figures 1 to 5, 1 is an agricultural tractor, and the engine, transmission case, etc. are directly connected to the vehicle body 2.
A driver's seat 3 is provided at the rear upper part of the vehicle body 2, and a pair of left and right steps 4 are provided at the ventral side.
A steering wheel 5 and gear shift levers are arranged in front of the driver's seat 3.

On the rear side of the vehicle body 2 is a rear axle case 7 for the rear wheels 6.
A pair of left and right projecting rear wheel fenders 8 are disposed on each rear axle case 7 to cover the upper and front areas of the rear wheels 6.

The lower part of the rear wheel fender 8 is attached to the rear axle case 7 and the step 4, and a floor seat 9 is attached to the inner surface.
is installed. Reference numeral 10 denotes a fitting provided on the rear wheel fender 8, and when the rear wheel 6 has a small diameter,
It is directly attached to a mounting portion 11 formed integrally with the rear axle case 7. When the rear wheel has a large diameter, it is indirectly attached to the attachment portion 11 via the fender attachment base 13 or via the attachment base 13 and the base 12.

The base 12 is provided with holes 14a, 14b, and 14c for bolt insertion at three locations in the front and back.
4a, 14b have holes 15a, 15b of the mounting part 11.
A bolt 16 is inserted through the bolt 16 . Both bolts 16 are screwed into screw holes 17a and 17b formed on the lower surface of the fender mount 13, and fix the base 12 and the fender mount 13 to the mounting portion 11.
Note that when the fender mounting base 13 is directly attached to the mounting portion 11, short bolts 16 are used.

A bolt 1 is attached to the upper surface A of the fender mounting base 13.
A screw hole 19a into which the screw 8 is screwed is formed, and an insertion hole 19b into which the bolt 20 passing through the hole 14c of the base 12 is inserted is bored in the front part.

The mounting tool 10 of the fender 8 is attached to the bolts 18, 2.
0 and is fixed to the upper surface A of the fender mounting base 13 via a collar 21, a vibration isolating rubber 22, and a nut 23.

The fender mounting base 13 is made of a square tube 26 formed by cutting a square pipe into a certain size, with upper and lower surfaces A,
Four holes are bored in B, a round bar 27 is passed through each hole in the vertical direction, and the upper and lower ends of the round bar 27 are welded to the square tube 26. The ends are exposed on the upper and lower surfaces A and B of the rectangular tube 26.

Screw holes 17 are provided at the lower ends of the rods 27a and 27b.
a, 17b are screw holes 1 at the upper end of the bar 27c.
An insertion hole 19b is formed in the bar 27d. These holes 17 and 19 are bored in the axis of each bar 27, and therefore each bar 27 has
7 are provided at positions necessary for drilling the respective holes 17 and 19.

When the fender 8 is mounted with the mounting tool 10 on the fender mounting base 13, the fender 8 becomes higher by the height of the mounting base 13 compared to the case where it is directly mounted on the mounting portion 11.
Further, the distance between the bolt holes 17a and 19a is forward, and the fender 8 is adjusted forward and upward.

The square tube 26 may be a hexagonal tube or an octagonal tube with upper and lower surfaces, and the bar 27 may also be a square bar.

In FIGS. 5 and 6, 30 is a four-post safety frame, the rear support 31 is installed upright on the rear wheel fender 8 (or the rear axle case 7), and the front support 32 is connected to the upper support 33 and the lower support. 34, and the lower support 34 is attached to the ventral side of the vehicle body 2. The top frame 35 is fixed to the upper ends of the rear support 31 and the upper support 33 so as to be adjustable in its longitudinal position, and if a canopy is attached to the top frame 35, it becomes a sunshade device.

The lower support 34 is formed into a substantially L-shape when viewed from the front, and the lower part of the upper support 33 is inserted into the vertical cylindrical portion 34a so as to be vertically adjustable.
It is fixed at 6.

When adjusting the position of the rear wheel fender 8,
The length of the front strut 32 is adjusted, and the front and rear positions of at least one of the front and rear struts 32, 31 and the top frame 35 are adjusted.

An annular vibration isolator 37 is provided on the inner end side of the horizontal portion 34b of the lower support 34, and this annular vibration isolator 3
A bolt-made support shaft 38 passing through the vehicle body 7 is supported by a bracket 39 projecting from the vehicle body 2. The front portion of the step 4 is placed and supported on this horizontal portion 34b.

Conventionally, the step 4 has been mounted on two support brackets, front and rear, which protrude largely from the ventral side of the vehicle body 2, but since the amount of protrusion of the support brackets is large, vibrations are very large. Therefore, an anti-vibration rubber plate was interposed between the vehicle body 2 and the support bracket, but since the anti-vibration rubber plate cannot be expected to have tensile strength, it was difficult to provide sufficient support strength for the steps. This is particularly a problem in the front support bracket, which is subject to heavy weight when the operator gets on and off the vehicle.

However, as described above, by supporting the front part of the step 4 on the front column 32 of the safety frame 30 and supporting the front column 32 with respect to the vehicle body 2 via the annular vibration isolator 37 and the support shaft 38, All of the above problems are solved, the vibration of step 4 is reduced, and the safety frame 30 can be reduced in vibration and improved in impact strength.

(Effects of the invention) According to the invention described in detail above, a plurality of rods 27 are vertically penetrated and welded to a rectangular tube 26 having upper and lower surfaces A and B, and the ends of the plurality of rods 27 are Since the holes 17 and 19 are bored in the rectangular tube 26, the number of welding parts is reduced compared to the conventional method, and the welding work becomes easier.
Commercially available products can be used for the rods 27 and 27, which can improve productivity and reduce costs.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention, FIG. 1 is an exploded perspective view, FIG. 2 is a partially sectional rear view, FIG. 3 is a cross-sectional view taken along the - line in FIG. 2, and FIG. is a sectional view taken along the line -- in Fig. 3, Fig. 5 is a side view of the rear of the tractor, Fig. 6 is a sectional view taken along the - line in Fig. 5, Fig. 7 is a sectional view taken along the - line in Fig. FIG. 2 is a perspective view showing a conventional example of a fender mounting base. 1... Tractor, 2... Vehicle body, 7... Rear axle case, 8... Rear wheel fender, 13... Fender mounting base, 17... Screw hole, 18... Bolt, 19...
...hole, 19a...screw hole, 19b...insertion hole, 2
0... Bolt, 26... Square tube, 27... Bar material, A
...Top surface, B...Bottom surface.

Claims (1)

[Scope of utility model registration request] The fender mounting base has bolt holes 17 for mounting on the rear axle case 7 of the vehicle 1 and bolt holes 19 for mounting the rear wheel fender 8 placed on the top surface A of the base. A, B
A fender mounting base characterized in that a plurality of rods 27 are vertically penetrated and welded to a rectangular tube 26 having a rectangular tube 26, and the holes 17 and 19 are bored at the ends of the plurality of rods 27.