JP2525483Y2 - Front wheel fender mounting device for vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a front wheel fender mounting device for a vehicle.

(Prior Art) In a tractor, the front wheels are generally used as steering wheels,
Since the rear wheel is a drive wheel and the rear wheel is a drive wheel, a rear wheel fender is provided above the rear wheel, and a fender is usually provided on the front wheel side. Not.

(Problems to be solved by the invention) In a four-wheel drive tractor, since the front wheels are also driven, jumping up of mud, muddy water, etc. by the front wheels becomes a problem when traveling on paddy fields and other irregular terrain. . For example, in a tractor of a cabin specification, there is a problem that mud or the like from which a front wheel has jumped adheres to a front glass of a cabin, or in a tractor of a safety frame specification, mud or the like hits an operator's feet.

Therefore, it is conceivable to provide a fender on the front wheel in order to prevent mud etc. from jumping up by the front wheel, but if the fender is simply provided, the front wheel will be steered and the front wheel will protrude from the fender There is.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a front wheel fender mounting device corresponding to a front wheel steering operation.

The inventor of the present application has considered the tractor shown in FIGS. 5 and 6 as a tractor to which the front wheel fender has already been attached, and will exemplify the tractor here as a comparative example. That is, in FIGS. 5 and 6, reference numeral 1 denotes a tractor body composed of an engine 2 and the like, and has a front wheel 3 and a rear wheel 4. Engine 2
Is covered with a hood 5, and a steering handle 6 is arranged at the rear end of the hood 5. 7 is a rear wheel fender, and 8 is a driver's seat.

The front wheel 3 is mounted on a front wheel axle of a front wheel case 9, and the front wheel case 9 is supported by a bevel gear case 11 mounted on both left and right ends of a front axle 10 so as to be able to perform a steering operation around a kingpin 12. A front wheel case support (an interlocking member) 13 is attached to an upper portion of the front wheel case 9, and a boss portion 14 of the front wheel case support 13 is rotatable about a shaft provided coaxially with a kingpin on the upper surface of the gear case 11. Is fitted. The left and right front wheels 3 are covered by a front wheel fender 15 from above. The front wheel fender 15 has an arc shape, has a reinforcing bone 16 on the lower surface side, and a mounting stay 17 is fixed to the front and rear central portions of the reinforcing bone 16. Stay
A base 17 is attached to a mounting bracket 19 by two bolts 18. The mounting bracket 19 is mounted on the boss 14 of the front wheel case support 13 with three bolts 20. The mounting bracket 19 has a front wheel case support.
It has a hole 22 that fits into a nut 21 on the boss 14 of the thirteen.

With the front wheel fender mounting structure as described above, when the steering wheel 6 is operated to steer the front wheel 3 around the king pin 12, the front wheel case 9 rotates around the king pin by the same angle as the front wheel 3. As a result, the front wheel fender 15 also rotates, so that the relative relationship between the front wheel 3 and the front wheel fender 15 can be kept constant, and a sufficient mudguard function can be obtained.

However, in a vehicle such as a tractor, the front wheel tread may be adjusted or the tire diameter of the front wheel 3 may be changed according to the working conditions. Therefore, with the conventional mounting structure, the mounting position of the front wheel fender 15 is constant,
The width of the front wheel fender must be made very large in order to immediately adjust the front wheel tread, and the position of the front wheel fender 15 must be set in advance according to the maximum tire diameter so that the tire diameter can be changed. This must be set, which effectively limits the range of adjustment or change.

(Means for Solving the Problems) In the present invention, a front wheel 3 is provided at an end of a front axle 10 so as to be capable of steering around a king pin 12, and an interlocking member 13 interlocked with the steering operation of the front wheel 3 is connected to the king pin 12. A mounting bracket 19 is mounted on the interlocking member 13, and a stay 17 for supporting a front wheel fender 15 covering the front wheel 3 is mounted on the mounting bracket 19 on the inner side in the left-right direction of the mounting bracket 19. And the outer surface side can be selectively attached via a tread corresponding spacer 26 or directly, and the stay 17
Can be adjusted in the radial direction of the front wheel 3 with respect to the mounting bracket 19.

(Operation) When the front wheel 3 is steered around the kingpin 12, the front wheel fender 15 also moves integrally with the front wheel 3, and the front wheel 3
And the front wheel fender 15 always keeps a constant relative relationship.

When the tread of the front wheel 3 is adjusted, if the tread is small, it is on the inner surface side of the mounting bracket 19, and if it is large, it is on the outer surface side of the mounting bracket 19 via the tread corresponding spacer 26 or directly. Attach the stay 17 and align the front wheel fender 15 with the front wheel 3.

When changing the tire diameter of the front wheel 3, the mounting position of the stay 17 is adjusted in the radial direction of the front wheel 3 with respect to the mounting bracket 19, and the position of the front wheel fender 15 is changed according to the diameter of the front wheel 3.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front sectional view of the front wheel fender mounting structure according to the present invention, and FIG. 2 is an exploded perspective view of the same. 1 and 2, the same components as those shown in FIG. 6 are denoted by the same reference numerals, and description thereof will be omitted.

1 and 2, the mounting bracket 19 is formed by bending a plate material into an L-shape, and its upright portion 24 has mounting surfaces 29 and 30 on both the inner surface and the outer surface. The portion 24 is provided with a large number (six) of mounting holes 25 in the vertical direction so as to be able to immediately respond to a change in the tire diameter of the front wheel 3. Reference numeral 26 denotes a tread-compatible spacer which is interposed between the upright portion 24 of the mounting bracket 19 and the stay 17 of the front wheel fender 15 when the front wheel tread is adjusted. The same number of mounting holes 27 are provided. The base of the stay 17 is provided with four mounting holes 28 in the vertical direction.

According to the above configuration, the mounting position of the front wheel fender 15 can be changed to four types by the presence or absence of the spacer 26 and the selection of the mounting surfaces 29 and 30 of the mounting bracket 19. That is, when the front wheel tread is at the minimum, as shown in FIG.
If the front wheel tread becomes slightly larger, the stay 17 may be mounted on the mounting surface 30 of the mounting bracket 19 without the spacer 26 as shown in FIG. When the front wheel tread is further enlarged, the stay 17 is mounted on the mounting surface 29 on the outer surface side of the mounting bracket 19 without the spacer 26 as shown in FIG. The stay 17 may be attached via the spacer 26 as shown in FIG. Therefore, when the front wheel tread is adjusted, the position of the front wheel fender 15 can be changed in accordance with the front wheel 3. Especially the mounting bracket 19
Since any one of the inner and outer surfaces can be selected, it is not necessary to arrange many types of spacers 26 for each tread.

In the mounting state of the front wheel fender 15, the stay 17,
The spacer 26 is fixed to the mounting bracket 19 with two bolts 18. However, when changing the tire diameter of the front wheel 3, the bolt 18 is removed to adjust the vertical position where the stay 17 is to be fixed, and the front wheel fender 15 is fixed at a position suitable for the tire diameter of the front wheel 3. That is, the stay 17 is attached to the mounting bracket
Adjust the front wheel 3 in the radial direction of the front wheel 3 to the front wheel fender 15
Fix the stay 17 to the mounting bracket 19 with the bolt 18 at a position that is optimal for the tire diameter of the front wheel 3. Thus, the tire diameter of the front wheel 3 can be changed immediately.

The tread of the front wheel 3 can be adjusted by adjusting the mounting position of the wheel disc 31 and the rim 32 in the axial direction, or by inverting the front wheel 3 and mounting it on the front wheel shaft 33, or by using both of them. There is a method to do.

The mounting position of the mounting bracket 19 is the front wheel case support.
The present invention is not limited to the boss portion 14 of the thirteenth embodiment, and may be a front portion or a rear portion of the front wheel case 9 as long as the structure can be linked to the steering operation of the front wheel 3. When the steering angle detector is mounted on the boss 14, the mounting bracket 19 may be fixed to the case.

(Comparative Example) FIG. 4 shows a comparative example of the front wheel fender mounting structure. In this case, the stay 17 is mounted on the mounting surface 30 of the mounting bracket 19 so that the stay 17 can be adjusted up and down so that the tire diameter of the front wheel 3 can be changed.

Therefore, it is not suitable for a tractor that requires adjustment of the front wheel tread to travel on a slope or the like.

(Effects of the Invention) According to the present invention, a mounting bracket 19 is mounted on the interlocking member 13 that is interlocked with the steering operation of the front wheel 3, and a stay 17 that supports the front wheel fender 15 that covers the front wheel 3 is mounted on the mounting bracket 19. Therefore, when steering the front wheel 3 around the kingpin 12, the front wheel fender 15 also moves integrally with the front wheel 3, so that the relative relationship between the front wheel 3 and the front wheel fender 15 is always kept constant, and a sufficient mudguard function is obtained. Can be.

A stay 17 for supporting the front wheel fender 15 covering the front wheel 3 can be selectively mounted on the mounting bracket 19 on the inner side and the outer side in the left-right direction of the mounting bracket 19 via a tread-compatible spacer 26 or directly or directly. And the stay 17 can be adjusted in the radial direction of the front wheel 3 with respect to the mounting bracket 19, so that even when the front wheel tread is changed or the tire diameter of the front wheel 3 is changed in size, The position of the front wheel fender 15 can be adjusted, and it is possible to always obtain a sufficient mudguard effect while using the relatively small front wheel fender 15.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same, FIGS. 3 (A) to 3 (D) are views showing an attached state of the stay, and FIG. Exploded perspective view showing an example, FIG.
The figure is a side view of a tractor showing a comparative example, and FIG. 6 is an exploded perspective view of the same. 3 ... front wheel, 9 ... front wheel case, 10 ... front axle, 12 ...
King pin, 15 ... Front wheel fender, 17 ... Stay, 19
…… Mounting bracket, 26 …… Tread compatible spacer.

Claims (1)

(57) [Scope of request for utility model registration] 1. A kingpin (12) is attached to an end of a front axle (10).
A vehicle provided with a front wheel (3) around the kingpin (12) and a rotatable member (13) interlocking with the steering operation of the front wheel (3); 13) Attach the mounting bracket (19) to
The mounting bracket (19) has a stay (17) for supporting the front wheel fender (15) covering the front wheel (3), and a tread spacer (26) on the inner side and the outer side in the left-right direction of the mounting bracket (19). A front wheel of a vehicle, wherein the stay (17) is adjustable in the radial direction of the front wheel (3) with respect to the mounting bracket (19). Fender mounting device.