JPH08175454A - Front wheel removing device of motorcycle - Google Patents

Abstract

PURPOSE: To simplify a front wheel removing work and also prevent the applica tion of a load by twisting to the support leg of a front fender by sliding a caliper provided in one body with a guide outside on the slide pin of a support bracket, as a front wheel is removed from a front fork. CONSTITUTION: When a front wheel 3 is drawn out from a front fork 2, the front wheel 3 advances along the guide pieces 34b of guides 34 so as to push and expand a space between the guide pieces 34b and calipers 28 in one body with the guides 34 receive a force from the front wheel, by which they are pushed and expanded to the outside in a car body width direction. At this time, the calipers 28 are slided along caliper holding pins (slide pins) 33 formed on a bracket for caliper (support bracket) 26 by straight moving bearings 38 and the passage width of the front wheel 3 is expanded automatically. Thereby, the front wheel 3 removing operation is carried out easily and also the application of a load by twisting to the support leg of a front fender 3a can be eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front wheel removing device for a motorcycle.

[0002]

13 to 15 are for explaining the prior art, in which a front wheel c of a motorcycle b equipped with a double disc brake a has left and right inner tubes e, e of a front fork d. ₁ shows an example of a state in which it is rotatably supported by the support portions e ₁ and e ₁ fixed to the tip end of the vehicle through an axle c ₁ .

By the way, the calipers f and f for braking the left and right discs a ₁ and a ₁ of the disc brake a are shown in FIG.
As shown in FIG.
-The inner half of the vehicle body of f) is located in the inner space g'of the front wheel g.

Therefore, when taking out the front wheel c from the front fork d, if the front wheel c is pulled out from the supporting portions e ₁ and e _{1 as} it is, the rim g ₁ of the front wheel g will have a caliper f. Rim side part f ₁ · f ₁
Will hit you. Therefore, when removing the front wheel c from the front fork d, the caliper brackets j and j are arranged so that the front wheel c can pass between the calipers f and f.
(See FIG. 13 and FIG. 15) It is necessary to push the caliper f · f toward the anti-median plane S side (outside the vehicle body) to expand the passage of the front wheel c.

In order to facilitate expansion between the calipers f and f, which are the passages of the front wheels c, the caliper brackets j and j to which the calipers f and f are attached are attached to the outer tubes h and h ( Only the right one is shown in FIG. 13), and a supporting portion e ₁ · e integrated with an inner tube e · e that can be rotated clockwise or counterclockwise (hereinafter referred to as “rotatable”). Installed in ₁ .

However, in order to expand the path of the front wheel c, it is necessary for the operator to widen the caliper f.f and the caliper bracket j.j.
This work was troublesome.

Therefore, the applicant of the present application filed Japanese Patent Application No. 6-503.
With No. 04, when removing the front wheels from the front fork, it is possible to automatically perform the work of expanding the caliper and the bracket for the caliper, which makes it easy to remove the front wheels of the motorcycle.
A front wheel removing device A for a motorcycle as shown in FIGS.
Was presented.

In the front wheel removing device A of the motorcycle shown in FIGS. 16 to 19, the rear side portions of the pair of calipers f and f approach each other as they go forward of the vehicle body with respect to each other. guiding m · m shape, provided or integrally together, the dimensions l ₁ between the vehicle body rear end of the guide m · m, greater than the width l ₂ of the rim g ₁ of the wheel g of the front wheel c did. It should be noted that the same reference numerals as those in FIGS. 13 to 15 shown in FIGS. 16 to 19 mean the same members as described above, and thus the description thereof will be omitted. Further, referring to the reference numerals n, n ₁ and n ₂ and the reference numerals o ₁ and o ₂ shown in FIG. 13 and / or FIG. 15 and not yet described, these are the front fender and the front fender, respectively. Front support leg and rear support leg for attaching the vehicle to the vehicle body, and a front fender attachment piece and rear side provided on the support portions e ₁ and e ₁ for supporting the front support leg n ₁ and the rear support leg n _2. It means a fender attachment piece.

However, with such a structure,
If a rider or a mechanic is positioned so as to correspond to the front wheel c and pulls the front wheel c toward the front side, the front wheel c is guided by a guide piece m
The caliper f and f and the caliper bracket j.
j receives a force that is spread by the front wheels c toward the outside in the vehicle width direction via the guide pieces m. The caliper f integrated with the guide piece m and the caliper bracket j are fixedly attached to the inner tube e rotatable left and right with respect to the outer tube h via the support portions e ₁ and e ₁ . Therefore, the outer tube h rotates together with the inner tube e toward the outer side in the vehicle width direction. Therefore, the guide piece m when it is rotated
The dimension l ₁ between the rear ends of the vehicle body of m, in other words, the width of the passage of the front wheel c is automatically widened as can be seen from FIGS. 17 to 19, so that the removal work of the front wheel c can be easily performed. You will be able to do it.

However, even in this case, there were the following problems. That is, although the front fender n is attached to the front wheel c as shown in FIG.
To attach the front fender n to the vehicle body, the support leg n ₁ and the support leg n ₂ are attached to the front fender attachment piece o ₁ and the rear fender attachment piece o _{2 of} the support portion e ₁ fixed to the inner tube e, respectively. Since the inner tube e rotates to the left and right with respect to the outer tube h as the front wheel c is removed, the support portion e also rotates, and the support legs n ₁ and n ₂ move accordingly. There was a risk of kinking.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art. The problem to be solved is to remove the caliper and the caliper in the work of removing the front wheel from the front fork. You can automatically perform the work of expanding the supporting bracket to support,
Accordingly, it is an object of the present invention to provide a novel front wheel removing device for a motorcycle, in which the front wheel removing work of the motorcycle can be easily performed and a load due to a twist on the support legs of the front fender is not applied.

[0012]

A front wheel removing device for a motorcycle according to the present invention solves the above problems and is as follows. That is, the front wheel removing device for a motorcycle according to the present invention is provided with a pair of outer tubes, a pair of inner tubes to be fitted into the outer tubes, and fixedly provided at each tip of the inner tubes. And a pair of calipers for respectively braking the double discs of the front wheels and a supporting portion for rotatably supporting the supporting portion and a supporting bracket fixed to the supporting portion. The present invention relates to a front fork of a motorcycle, the front fork having a front fender attached via at least extending support legs.

A front wheel removing device for removing the front wheel from the front fork, wherein the rear rim of each of the calipers is at least when the front wheel is attached to the vehicle body, the rim of the front wheel and the axle. A guide that is closer to the other as it goes to the front of the vehicle body with respect to the other, and that the dimension between the rear ends of the vehicle body is larger than the rim width of the front wheel is integrally or integrally provided,
As the front wheel is removed from the front fork, the caliper is slid on a slide pin provided on the support bracket and extending toward the outside of the vehicle.

[0014]

Therefore, according to the front wheel removing device for a motorcycle of the present invention, at the rear portion of the body of each caliper, at least when the front wheel is attached to the vehicle body, the rim of the front wheel and the axle are separated from each other. With respect to the front of the vehicle, the guides that are closer to each other and have a dimension between the rear ends of the vehicle body larger than the rim width of the front wheel are integrally or integrally provided. When the front wheel is pulled out from the front fork toward the front of the vehicle body, the rim of the front wheel enters the space between the rear end portions of the vehicle bodies of the guides, and then the ribs of the rim of the guides become smaller. First, the parts are abutted at the same intervals as the width.

When the front wheel is further pulled out thereafter, the front wheel advances along and along the guide pieces, and the caliper integrated with or integrated with the guide piece is expanded outward in the vehicle width direction. The front wheel receives the force to be exerted. At this time, the caliper is slid along the slide body formed on the support bracket and extending outward of the vehicle, so that the width of the passage of the front wheels is automatically widened. Therefore, the front wheel removing work of the motorcycle can be easily performed. Also, the force that pushes the caliper outward in the vehicle width direction is used only to slide the caliper, so it does not rotate the support part to which the caliper is attached via the support bracket. The support legs of the front fender attached to the portion via the support legs do not have large kinks.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A front wheel removing device 1 for a motorcycle according to the present invention will be described in detail below with reference to the accompanying drawings with reference to the accompanying drawings. 1 is an overall side view of a motorcycle adopting a front wheel removing device 1 for a motorcycle according to the present invention, FIG. 2 is an enlarged plan sectional view of a front wheel removing device 1 for a motorcycle, and FIG. 3 is a partial cutaway of FIG. 2 is a sectional view of the left side, FIG. 4 is a side view of a main part as seen from the direction of arrow IV in FIG. 2, FIG. Right side view, FIG. 7 is a view seen from the arrow VII direction in FIG. 6, FIG. 8 is a view seen from the arrow VIII direction in FIG. 7, and FIG.
10 is a schematic view for explaining the operation of the front wheel removing device 1 of the motorcycle according to the present invention, and FIG. 10 shows the front fork 2 through the front wheel 3. FIG. 11 is a view showing a state in the middle of removal, FIG. 11 is a view showing a state in which the front wheel 3 is removed from the front fork 2, and FIG. 12 is a view showing a modified example.

The front wheel removing device 1 for a motorcycle according to the present invention is for easily removing the front wheel 3 assembled to the front fork 2 and having the front fender 3a mounted thereon from the front fork 2. Front fork 2
Includes a pair of left and right outer tubes 4 and an inner tube 5 slidably fitted in the outer tubes 4 and rotatable left and right in the outer tubes 4.

At the tip of the inner tube 5, the front wheel 3
Front fork axle holder 1 as a support portion that rotatably supports the vehicle via its front axle 12.
4 is fixedly attached.

Front fork axle holder 14
Comprises a base 16 and a holder 18, as can be seen in FIG. The holder portion 18 is rotatably attached to the base portion 16 via a pivot shaft 20 and is detachably connected by a stud bolt 21.

Further, as shown in FIGS. 1 and 3, the tips of the support legs 3a ₁ and 3a ₂ of the front fender 3a covering the upper peripheral portion of the front wheel 3 are fixed to the upper portion of the base portion 16 by screws or the like. Fender attachment pieces 16a and 16b are formed which are attached via the means.

The base portion 16 and the holder portion 18 include
Semi-circular recesses 16c and 18c for bearings are formed, and the recess 1 is formed when the holder 18 is fitted to the base 16.
6c and 18c form a space 22 having a circular cross section that substantially matches the outer diameter of the front axle 12. The ends 12a and 12a of the front axle 12 are fitted and supported in the space 22 (see FIGS. 2 and 3).

A caliper 28 is attached to the front fork axle holder 14 via a caliper bracket 26 as a support bracket. The caliper 28 brakes the rotation of the disc 30, and a disc brake 32 is formed from the caliper 28 and the disc 30.

As shown in FIG. 3, the caliper bracket 26 has a pointed shape which is obliquely attached to the vehicle body rear side of the base 16 by an appropriate fixing means, and has a tip end and a base end side. Has an upper through hole 26u and a lower through hole 26d for attaching the caliper 28 to the caliper bracket 26.

As shown in FIGS. 2 and 3, etc., the caliper holding pin 33 is inserted into the upper through hole 26u from the inside of the vehicle.
Is fixed to the caliper bracket 26 in a penetrating state and by an appropriate fixing means. A fixing pin 35 for fixing a lower support arm 28d of the caliper 28 described later to the caliper bracket 26 is passed through the lower through hole 26d (see FIG. 3).

The caliper holding pin 33 functions as a slide pin for making the upper support arm 28u of the caliper 28, which will be described in detail below, slidable in the vehicle width direction. Further, as shown in FIGS. 2, 9 and 10, a stopper circlip 33c for restricting movement of an upper support arm 28u of the caliper 28 described later is fixed to the tip of the caliper holding pin 33.

As shown in FIG. 2, the caliper 28 includes
In the rear part of the vehicle body, the resin guides 34 shaped so as to approach each other toward the front of the vehicle with the front wheel 3 assembled to the front fork 2 are connected to the caliper 28. They are integrally assembled by an appropriate screwing means (not shown).

In this embodiment, the guide 34 is easily fitted into the caliper 28 by forming a convex portion 34a having a triangular cross section, which is fitted to the step portion 28a in the case where the caliper 28 has a cross section. is there. Reference numeral 34b indicates a guide piece, which is attached to the median plane S at an inclination angle of about 45 ° in this embodiment.

Further, the dimension l ₁ between the rear ends of the vehicle body between the guide pieces 34b is larger than the width l ₂ of the rim 3b of the wheel 3a of the front wheel 3.
The length l ₃ of the guide piece 34b is set so as to become larger.

As can be seen from FIGS. 2, 3, 9, and 10, the reference numerals 28u and 28d indicate the upper side of the caliper 28 for attaching the caliper 28 to the caliper bracket 26. A support arm and a lower support arm, in which a round shaft linear motion bearing or a slide bush (hereinafter simply referred to as “linear motion bearing 38”) is incorporated in the through hole 28u ₁ of the upper support arm 28u. As a result, the upper support arm 28u
It can slide on the caliper holding pin 33. Further, the fixing pin 35 is inserted into the through hole 28d ₁ of the lower support arm 28d. The half of the caliper 28 on the median plane S of the vehicle body is located in the inner space 3 ′ of the front wheel 3 as shown in FIG.

However, the method of removing the front wheel 3 from the front fork 2 and the function and effect thereof when the front wheel disengaging device 1 for such a motorcycle is used are as follows.

Loosen the stud bolt 21 to the position shown by the chain double-dashed line in FIG.

The holder 18 is rotated downward about the pivot shaft 20 as shown by the chain double-dashed line in FIG.
Separate from 6.

Both end portions 12a of the front axle 12
-Hold 12a and pull out the front wheel 3 from the front fork axle holder 14 at the tip of the front fork 2 toward the front side of the vehicle body. At this time, the guide pieces 34b, 34b
Since the dimension l ₁ between the rear ends of the vehicle body (see FIG. 2) is larger than the rim width l ₂ of the wheel 3a of the front wheel 3, the guide 34
After entering the space between the rear end portions of the vehicle body 34, the guide 34
First, abutment is made at a portion of 34 having the same spacing as the rib width l ₂ of the rim 3b. Moreover, as the front wheel 3 is pulled out,
The disc 30 is separated from the caliper 28 downward so that the two can be disengaged from each other.

After that, when the front wheel 3 is further pulled out, the front wheel 3 advances along the guide pieces 34b of the guide 34 and pushes between them, and the guide 34
The caliper 28 integral with or integrated with the front wheel 3 receives a force to be spread outward in the vehicle width direction. At this time, the caliper 28 uses the linear motion bearing 38 to move the caliper bracket 2 as a support bracket.
Since it is slid along the caliper holding pin 33 as a slide pin that extends outward from the vehicle formed in 6,
The width of the passage of the front wheel 3 is automatically widened. Therefore, the front wheel removing work of the motorcycle can be easily performed.

Further, the force for pushing the caliper 28 outward in the width direction of the vehicle body is used only for sliding the caliper 28, so the caliper bracket 26
Since the front fork axle holder 14 as the support portion to which the caliper 28 is attached is not rotated via the front fork axle holder 14, the front fender 3a attached to the front fork axle holder 14 via the fender attachment pieces 16a and 16b. It is possible to prevent a load due to a large twist from being applied to the support legs 3a ₁ and 3a ₂ of.

As shown in FIG. 12, the caliper 2
8, the rubber dust boot inner 40i and the dust boot outer 4 on the left and right sides of the upper support arm 28u, that is, on the inner side and the outer side in the vehicle width direction, respectively.
By providing 0o, pride and dust can be prevented from adhering to the caliper holding pin 33, and thus the movement of the caliper 28 can be prevented.

Also, in this embodiment, the upper support arm 28u
Only the caliper holding pin 33 can slide on the upper support arm 2d.
You may make it the structure which can slide similarly to 8u.

[0038]

According to the front wheel removing device for a motorcycle of the present invention, when the front wheel is removed from the front fork, it is possible to automatically perform the work of expanding the caliper and the caliper bracket, whereby the front wheel of the motorcycle is removed. It can be easily removed. In addition, at that time, it is possible to prevent a load due to kinking from being applied to the support legs for attaching the support portion to the vehicle body.

[Brief description of drawings]

FIG. 1 is an overall side view of a motorcycle that employs a front wheel removing device for a motorcycle according to the present invention.

FIG. 2 is an enlarged plan sectional view of a front wheel removing device of a motorcycle.

FIG. 3 is a partially cutaway left side sectional view of FIG.

FIG. 4 is a side view of the main part as seen from the direction of arrow IV in FIG.

FIG. 5 is an enlarged perspective view of a guide relating to the front wheel removing device for a motorcycle according to the present invention.

FIG. 6 is an enlarged right side view of FIG.

7 is a view as seen from the direction of arrow VII in FIG.

8 is a view as seen from the direction of arrow VIII in FIG. 7.

9 is a view as seen from the direction of arrow IX in FIG.

FIG. 10 is a diagram showing a state immediately before a rim of a front wheel comes into contact with a guide.

FIG. 11 is a view showing a state in which the front wheels are removed from the front fork.

FIG. 12 is a diagram showing a modified example.

FIG. 13 is an overall side view of a motorcycle that employs a conventional front wheel removing device for a motorcycle.

FIG. 14 is a diagram for explaining a problem of the conventional technique.

FIG. 15 is a diagram viewed from the arrow XV direction in FIG.

FIG. 16 is a diagram for explaining another conventional technique based on the above conventional technique.

FIG. 17 is a diagram for explaining the operation of another conventional technique.

FIG. 18 is a diagram for explaining the operation of another conventional technique.

FIG. 19 is a diagram for explaining the operation of another conventional technique.

[Explanation of symbols]

1 Front wheel removing device for motorcycle 2 Front fork 3 Front wheel 3a Front fender 3a ₁ Support leg 3a ₂ Support leg 3b Rim 4 Outer tube 5 Inner tube 12 Axle 14 Support part 26 Support bracket 28 Caliper 30 Double disc 33 Slide pin 34 Guide l ₁ Dimension between rear end of vehicle l ₂ Rim width

Claims (1)

[Claims] 1. A pair of outer tubes, a pair of inner tubes to be fitted into the outer tubes, and fixedly provided at each tip of the inner tubes for rotatably supporting a front wheel with a double disc. And a pair of calipers for respectively braking the double discs of the front wheels, and a supporting leg extending to the supporting portion. A front wheel removing device for removing the front wheel from a front fork of a motorcycle having a front fender attached thereto, the front wheel removing device being provided at a rear portion of the vehicle body of each of the calipers, at least when the front wheel is attached to the vehicle body. Between the rim and the axle of the vehicle, approaching each other toward the front of the vehicle, and A guide having a dimension between the rear ends of the body larger than the rim width of the wheel of the front wheel is integrally or integrally provided, and the caliper is provided on the support bracket as the front wheel is removed from the front fork. A front wheel removing device for motorcycles that slides on a slide pin that extends outward from the vehicle.