JP2003104272A - Parts for detaching front wheel of motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a part for detaching a front wheel of a motorcycle, wherein a front wheel of a motorcycle can be quickly and easily detached and replaced, capable of shortening the time for replacing a front wheel during a race. SOLUTION: This part for detaching a front wheel of a motorcycle comprises a fender bracket 9, which is rotatably and detachably mounted to an axle holder 2 attached to a front fork of a motorcycle, and a movement restraining member 11, which is mounted to the axle holder for restraining the movement of the fender bracket on the axle holder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front wheel attachment / detachment component for a motorcycle, which enables quick and easy attachment / detachment / replacement of front wheels of a motorcycle and shortens front wheel exchange time in a race. Is.

[0002]

2. Description of the Related Art As is well known, in races that compete for time, the time required for wheel replacement greatly affects the race result. Therefore, conventionally, the front wheels have been replaced easily and quickly by increasing the facing distance between the front forks. That is, when the front fork spacing is narrow, the inside of the caliper provided on the front fork abuts the front wheel when removing the front wheel, which is a factor that hinders the smoothness of the front wheel attachment / detachment work. This is achieved by increasing the facing distance between the front forks.

[0003]

If the front fork facing interval is increased as described above, the front wheels can be easily replaced, but on the other hand, the handling becomes heavy and the steering wheel easily shakes, which results in stable running. There was a problem of loss of sex. In order to solve such a conventional problem, there has been proposed a front wheel removing mechanism for a motorcycle, which can quickly and easily attach and detach the front wheels while minimizing the facing gap between the front forks (Japanese Patent Laid-Open No. 10-9).
5382).

In the front wheel removing mechanism described in the above publication, a pair of left and right front forks are non-rotatably supported by a frame, and a fork main body is rotatably attached to a lower end portion of the fork main body. It consists of an axle holder that inserts and holds the axle, the caliper is fixed to the axle holder, the front fender is fixed to the fender bracket rotatably attached to the axle holder, and the caliper is near the set position on the side of the brake disc. An urging member for urging the wing to rotate further outward is fixed to the fender bracket, and with such a structure, the facing interval of the front forks is minimized, and the fender and the like are kept. Being able to quickly and easily attach and detach the front wheels without removing them To have.

However, the following problems have been pointed out in the front wheel removing mechanism of the motorcycle having the above structure. Since the fender bracket is configured to be attached to the axle holder by penetrating the axle holder through the hole formed in the fender bracket, the fender bracket cannot be easily assembled to the axle holder unless the axle holder is separated from the front fork. The work for that is troublesome. Also, because the attachment mechanism of the fender bracket to the axle holder is an assembly method by the factory,
It cannot be easily installed on motorcycles already on the market. In order to construct an axle holder equipped with a fender bracket as described above, it is necessary to replace the entire axle holder, which is extremely expensive and can only be adopted by major manufacturers in races and the like. Moreover, such a removal mechanism cannot be adopted by a racing team that does not have the funds, and furthermore, such an axle holder cannot be easily adopted because it can be obtained only at a major shop or the like. Therefore, it was extremely disadvantageous in the race. Other than the above, some of them have the same function by making the front fork itself troublesome, but the cost is high and it is difficult for only major manufacturers to adopt it.

Therefore, an object of the present invention is to solve the above-mentioned problems by providing a front wheel attachment / detachment component for a motorcycle that can be easily retrofitted to an axle holder of a commercially available motorcycle. . That is, in the normal front wheel replacement work, the front wheel cannot be removed without removing the caliper or the front fender, but in the present invention, the fender bracket is rotatably and slidably attached to the axle holder. By the way
The front wheel can be easily removed by rotating the axle holder together with the caliper and letting out the caliper without removing the front fender and caliper. Therefore, it has become possible for ordinary people to easily replace the front wheels at low cost. Further, by dividing the parts into two parts, the front fork can be easily installed without disassembling, and the front wheel replacement work can be performed extremely easily and in a short time.

[0007]

Therefore, the technical solution adopted by the present invention is a fender bracket which is rotatably and detachably attached to an axle holder attached to a front fork of a motorcycle, and the axle holder. A front wheel attachment / detachment component of a motorcycle, which is attached to a front wheel attachment / detachment member and is configured to include a movement restricting member that restricts movement of the fender bracket on the axle holder. Further, the fender bracket is attached to the outer periphery of the axle holder by a two-divided ring member, and a fender fixing member is sandwiched on one side of the two-divided portion, the front wheel attaching / detaching component of the motorcycle. Is. Further, the two-divided ring member is configured to have a gap on the side opposite to the side where the fender fixing member is sandwiched in a state where it is attached to the outer circumference of the axle holder. Is. Further, the fender bracket is a component for attaching and detaching a front wheel of a motorcycle, which is configured to be attached to an outer periphery of an axle holder by elastic deformation.

In the front wheel attaching / detaching component of the motorcycle according to the present invention, when the front axle is inserted into the axle holder of the front fork to hold the front wheel, the front axle supporting the front wheel is inserted into the axle holder. Therefore, the axle holder cannot rotate, and the caliper fixed to this is also in a non-rotatable state, and the caliper is positioned near the set position on the side surface of the brake disc fixed to the front wheel.

In order to remove the front wheel from this state, the front axle can be removed from the axle holder, and the axle holder can be rotated while the front fender is fixed to the fender bracket. By rotating, the caliper retreats outward from the vicinity of the set position on the side surface of the brake disc, and the front wheel can be easily removed. In this way, even if the front fork facing interval is set to the necessary minimum, by using the parts of the present invention, the front wheels can be taken out without interfering with the caliper, and the operation can be performed extremely quickly and easily. .

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a main part of a front wheel portion of a motorcycle to which an embodiment of the present invention is applied, and FIG. 2 is a plan view and a side view of a split ring member that constitutes a fender bracket among the front wheel attaching / detaching parts. , And a side view of the fender fixing member, and FIG. 3 is a plan view and a side view of the movement restricting member of the front wheel attaching / detaching parts according to the embodiment of the present invention,
FIG. 4 is an enlarged side view of the state in which the fender bracket is attached to the axle holder, and FIG. 5 is an explanatory diagram of front wheel removal work.

In FIG. 1, the motorcycle shown here is
It is a road race type motorcycle, and the front fork 1 is formed to extend to the left and right of the front wheel 5 as is well known.
Axle holders 2 are attached to the lower ends of the left and right front forks so as to be rotatable and axially strokeable. Through holes 3 are formed at the lower ends of the left and right axle holders 2 in a direction orthogonal to the central axis of the front fork, and both shaft through holes 3 are formed at positions concentric with each other. Further, a cylindrical spacer is fitted into both insertion holes 3, and the front axle 4 is fixed by being inserted through a well-known mechanism.

Further, in the middle portion of the front axle 4,
The front wheel 5 is rotatably supported. A cylindrical spacer is rotatably fitted to the center of the wheel portion of the front wheel via a bearing (not shown), and the intermediate portion of the front axle is inserted therein. Disc-shaped disc plates 6 are fixed to the left and right side surfaces of the wheel portion by screws.

On the other hand, caliper brackets 7 are fixed to the mounting portions of the left and right axle holders 2 of the front fork 1, and calipers 8 are fixed to the caliper brackets 7 by screws. Each of the calipers 8 has pads (not shown) that can be brought into contact with and separated from the left and right side surfaces of the disc plate 6, and operates a master cylinder by pressing and releasing a brake lever (not shown) to prevent the oil flowing in the brake hose. The pads are brought into contact with and separated from the disc plate 6 by hydraulic pressure, and thereby the front wheels are appropriately braked.

A fender bracket 9 is rotatably attached to the peripheral surface of the axle holder 2. As shown in FIG. 2, the fender bracket 9 includes a ring member 9A that is attached to the outer periphery of the axle holder 2 and is divided into two parts, and a fender fixing member 9B that is sandwiched by the ring member 9A. There is. The ring member 9A divided into two parts is arranged on the outer periphery of the axle holder 2 as shown in FIG. 4, and is attached to the axle holder 2 by a bolt 10 while sandwiching the fender fixing member 9B shown in FIG. At this time, the two-divided ring member 9A is attached to the axle holder 2 with a gap S as shown in FIG. 2 at a position opposite to the side to which the fender fixing member 9B is attached. 9A is configured to be rotatable around the outer circumference of the axle holder 2.

Then, as shown in FIGS. 1 and 4, the front fender F is attached to the fender fixing member 9B of the fender bracket 9 configured as described above. Therefore, the front fender F pivots around the steering stem together with the front fork 1 and is rotatable with respect to the axle holder 2.

As shown in FIG. 4, a movement restricting member 11 is fixed to the axle holder 2 directly above the fender bracket 9 attached to the axle holder 2. The movement restricting member 11 is configured as a two-divided component 11A as shown in FIG. 3, and can be firmly fixed to the axle holder 2 by tightening the divided portion 12 with a bolt in a state of being arranged around the axle holder 2. it can. The movement restricting member 11 has a function of prohibiting the above-described fender bracket 9 from moving upward on the outer circumference of the axle holder 2. That is, the front fender F has a function of prohibiting upward movement due to wind received during traveling. Further, the mounting position of the movement restricting member 11 to the axle holder 2 is such that the movement restricting member 11 does not interfere with the lower end of the front fork 1 when the axle holder 2 makes a stroke with respect to the front fork 1 (remaining stroke). Part)).

In the motorcycle having the above structure, when the front wheel 5 is attached, the front axle 4 is inserted and fixed in the axle holder 2 of the front fork, so that the rotation of the axle holder 2 is blocked. Yes, the caliper 8 held by this is at the steady position,
That is, it is at a position P1 (see FIG. 5) directly facing the disc plate 6 fixed to the front wheels. Here, when removing the front wheels, first, the front axle 4 is pulled out from both the axle holders 2 and the front wheels 5.

As a result, the axle holder 2 becomes rotatable with respect to the front fork. In this state, when the disc plate 6 of the front wheel is pulled out from the holding portion of each caliper 8 and the axle holder 2 is rotated, the caliper 8 fixed to the axle holder 2 is shown in FIG.
The vehicle moves to the retracted position P2 indicated by the alternate long and short dash line, and as a result, the distance between the left and right calipers becomes larger than the tire width of the front wheels, and the front wheels can be removed easily and smoothly. The fender bracket 9 is attached to the axle holder 2.
Is rotatably held, the fender bracket 9 does not move even if the axle holder 2 rotates as described above, and the front fender F is held at a fixed position in a supported state.

When mounting the front wheels, the caliper 8 is moved to the retracted position P2 as shown in FIG. 5, and the front wheel is first passed through between the calipers, and then the axle holder is inserted. Rotate to the direction and insert the front wheel further in alignment with the disc mounted on the caliper and the front wheel to position the disc inside the caliper.In this state, insert and fix the front axle to complete the mounting of the front wheel. . Since the front wheel does not come into contact with the caliper even during this insertion, the insertion work can be performed quickly and smoothly. As described above, in this embodiment, since the front wheels can be attached and detached smoothly and quickly, it is extremely effective in a racing vehicle in which the length of time required for wheel replacement greatly affects the result, and it is powerless. The person can easily attach and detach the front wheels, which is effective in terms of maintenance and the like.

Although the movement restricting member 11 and the fender bracket 9 are divided into two parts in the above embodiment, they may be divided into three or more parts. Further, the fender bracket and the movement restricting member may be formed of elastically deformable members so that they can be attached to the axle holder 2 while being elastically deformed. When the present invention is applied to a commercially available motorcycle,
Cut off the fender bracket fixed to the axle holder, attach the fender bracket to the remaining stroke part of the axle holder, and attach the front fender to this bracket with the bolts. At this time, since the fender bracket is not fastened to the axle holder, it is attached so as to be rotatable and slidable with respect to the axle holder. In addition, the present invention can be implemented in any other form without departing from the spirit or the main feature thereof. Therefore, the above-described embodiments are merely examples in all respects and should not be limitedly interpreted.

[0021]

As described above, according to the present invention, since the caliper can be rotated outward by pulling out the front axle holding the front wheel, the front wheel does not come into contact with the caliper. As a result, anyone can easily and quickly perform front wheel attachment / detachment work. Therefore, the time loss required for front wheel replacement can be greatly reduced, which is particularly effective for races and the like. In a road race, front wheel replacement work in an endurance race or front wheel replacement work due to changes in the weather can be performed in a short time, and moreover, attachment to a vehicle body can be easily performed at low cost. Using these front wheel attachment / detachment parts eliminates the inequality that major manufacturers and major shops will have an advantage in racing. To reduce the work time, it is possible to prevent the effect of the front fender from being lost by running without the front fender. It can be expected to have good results in the privateer race and contribute to the prosperity of the race.

[Brief description of drawings]

FIG. 1 is a side view showing a main part of a front wheel portion of a motorcycle to which an embodiment of the present invention is applied.

FIG. 2 is a plan view and a side view of a split ring member that constitutes a fender bracket of the front wheel attachment / detachment component, and a side view of a fender fixing member.

3A and 3B are a plan view and a side view of a movement restricting member of front wheel attachment / detachment parts according to an embodiment of the present invention.

FIG. 4 is an enlarged side view showing a state in which the present fender bracket is attached to an axle holder.

FIG. 5 is an explanatory diagram of front wheel removal work.

[Explanation of symbols]

1 front fork 2 axle holder 3 insertion holes 4 front axle 5 front wheels 6 disc plate 7 Caliper bracket 8 calipers 9 fender bracket 9A 2 split ring member 9B fender fixing member 10 volts 11 Movement restriction member 12 divisions F front fender

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[Procedure amendment]

[Submission date] October 4, 2001 (2001.10.
4)

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

Claims (4)

[Claims] 1. A fender bracket rotatably and removably attached to an axle holder attached to a front fork of a motorcycle, and a movement for restricting movement of the fender bracket attached to the axle holder on the axle holder. Front wheel attachment / detachment parts for motorcycles consisting of a control member. 2. The fender bracket is attached to the outer circumference of the axle holder by a two-divided ring member, and the fender fixing member is sandwiched on one side of the two-divided portion. Parts for attaching and detaching the front wheel of the motorcycle described. 3. The two-divided ring member is configured so as to have a gap on the side opposite to the side where the fender fixing member is sandwiched when the ring member is attached to the outer circumference of the axle holder. Parts for attaching and detaching the front wheel of the motorcycle described. 4. The front wheel attaching / detaching part for a motorcycle according to claim 1, wherein the fender bracket is configured to be attached to the outer periphery of the axle holder by elastic deformation.