JP3157567U - Saddle-type vehicle equipped with a fork protector and a fork protector - Google Patents

Abstract

A fork protector capable of suppressing damage to an inverted fork and a straddle-type vehicle including the fork protector are provided. A fork protector 61 covers an inner tube 51a in front of the inner tube 51a, extends along the longitudinal direction of the inner tube 51a, and one end portion on the front wheel 20 side of the first protector portion 61a. And a second protector portion 61b extending to the rear of the inner tube 51a. [Selection] Figure 5

Description

  The present invention relates to a fork protector that protects an inverted fork and a straddle-type vehicle including the fork protector.

  In a saddle type vehicle such as a motorcycle, an inverted fork is widely used. The inverted fork has an inner tube that extends upward from an axle to which wheels are attached, and an outer tube that is connected to the upper portion of the inner tube.

  In a straddle-type vehicle having such an inverted fork, a technique for attaching a fork protector to the front surface of the inner tube and the outer surface in the vehicle width direction is known (for example, see Patent Document 1). According to such a fork protector, it is possible to prevent the front surface of the inner tube and the outer surface in the vehicle width direction from being damaged by stones flying from the vehicle traveling ahead.

Utility Model Registration Gazette No. 2547045 (page 3, Fig. 1)

  However, even when the fork protector as described above is attached to the inverted fork, there is still a situation in which the inner tube is damaged due to a collision with a stone or the like.

  Therefore, the present invention has been made in view of such a situation, and an object thereof is to provide a fork protector capable of suppressing damage to an inverted fork and a straddle-type vehicle including the fork protector. .

  In order to solve the problems described above, the present invention has the following features. First, the fork protector according to the first feature of the present invention is an inner tube (inner tubes 51a, 52a) extending upward from an axle (axle 21) to which a wheel (front wheel 20) of a saddle riding type vehicle (motorcycle 10) is attached. And fork protectors (fork protectors 61, 62) attached to an inverted fork (front forks 51, 52) having an outer tube (outer tubes 51b, 52b) connected to the upper part of the inner tube, From the one end part in the vehicle width direction of the 1st protector part (1st protector part 61a, 62a) which covers the said inner tube in the front of the said inner tube, and extends along the longitudinal direction of the said inner tube, and the said 1st protector part A second protector portion extending to the rear of the inner tube ( 2 protector sections 61b, 62b) and is summarized in that comprises a.

  According to the features of the present invention, it is possible to provide a fork protector capable of suppressing damage to an inverted fork and a straddle-type vehicle including the fork protector.

1 is a left side view of a motorcycle according to an embodiment of the present invention. It is a single figure of the fork protector 61 concerning the embodiment of the present invention. It is a single figure of the fork protector 62 which concerns on embodiment of this invention. It is an arrow view from F1 direction shown in FIG. 1 is an enlarged left side view of a motorcycle according to an embodiment of the present invention. It is sectional drawing in the CC cut surface of FIG. FIG. 6 is a diagram illustrating a trajectory of a stone wound up by a front wheel 20 in a cross-sectional view taken along the line CC in FIG. 5. FIG. 6 is an enlarged left side view of a motorcycle according to another embodiment of the present invention.

  Next, an embodiment of a saddle riding type vehicle according to the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions are different from actual ones.

  Accordingly, specific dimensions and the like should be determined in consideration of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

(1) Schematic configuration of saddle riding type vehicle FIG. 1 is a left side view of a motorcycle 10 that is a saddle riding type vehicle according to the present embodiment. As shown in FIG. 1, the motorcycle 10 is a motorcycle adapted to travel on an irregular road. The motorcycle 10 includes a front wheel 20 and a rear wheel 30, and drives the rear wheel 30 by a driving force generated by the engine 40.

  The front wheel 20 has a wheel 20a rotatably supported on the axle 21 and a tire 20b attached to the outer periphery of the wheel 20a. A pair of left and right front forks 51 and 52 (the front fork 52 is not shown in FIG. 1, refer to FIG. 4) are attached to both ends of the axle 21 in the vehicle width direction.

  The front forks 51 and 52 absorb the impact received by the front wheels 20 by causing the front wheels 20 to linearly move in the vertical direction (in practice, a direction in which a predetermined caster angle is given) according to changes in road surface conditions. To do.

  As shown in FIG. 1, the front forks 51 and 52 have inner tubes 51a and 52a extending upward from the axle 21, and outer tubes 51b and 52b into which the inner tubes 51a and 52a are inserted. That is, the front forks 51 and 52 according to the present embodiment are so-called inverted front forks.

  Each of the inner tubes 51a and 52a and the outer tubes 51b and 52b is formed in a cylindrical shape. The inner tubes 51a and 52a slide in the outer tubes 51b and 52b. A seal member is provided inside the lower ends of the outer tubes 51b and 52b.

  Fork protectors 61 and 62 (only the fork protector 61 is shown) are attached to the inner tubes 51a and 52a to prevent the inner tubes 51a and 52a from being damaged. The configuration of the fork protectors 61 and 62 will be described in detail later.

  The central portions of the outer tubes 51b and 52b in the vertical direction are connected by an under bracket 70. A front fender 80 is attached to the center of the under bracket 70 in the vehicle width direction. The front fender 80 is disposed along the outer periphery of the tire 20b above the front wheel 20.

  The upper ends of the outer tubes 51b and 52b are connected by an upper bracket 75. A steering wheel 85 that is operated by a rider to change the direction of the vehicle body is attached to the upper bracket 75. A brake hose 87 is guided from the steering 85 toward the brake caliper 86.

  The body frame 90 forms a skeleton of the motorcycle 10. A head pipe 90 hp is formed at the front end of the vehicle body frame 90. The head pipe 90hp rotatably supports a steering shaft 95 (not shown in FIG. 1, refer to FIG. 4).

  The rear wheel 30 includes a wheel 30a that is rotatably supported on the axle 31 and a tire 30b that is attached to the outer periphery of the wheel 30a. The axle 31 is attached to the rear end portion of the rear arm 32. The rear arm 32 is swingably attached to the pivot shaft 33.

(2) Configuration of Fork Protector Next, the configuration of the fork protectors 61 and 62 will be described with reference to FIGS. 2 and 3. FIG. 2 is a single view of the fork protector 61. FIG. 3 is a single view of the fork protector 62.

  As shown in FIGS. 2 and 3, the fork protectors 61 and 62 are formed substantially symmetrically. As shown in FIG. 2, the fork protector 61 has a stay attaching portion 100 for attaching a stay for fixing the brake hose 87.

  The fork protectors 61 and 62 have first protector portions 61a and 62a and second protector portions 61b and 62b.

  The first protector parts 61 a and 62 a and the second protector parts 61 b and 62 b are connected by a rivet 110.

  Specifically, the 2nd protector parts 61b and 62b are connected with the center of the up-and-down direction among the one end parts of the 1st protector parts 61a and 62a. When the fork protectors 61 and 62 are attached to the motorcycle 10, the connecting portions of the first protector portions 61a and 62a and the second protector portions 61b and 62b are located on the inner side in the vehicle width direction.

  A notch A is formed at the upper ends of the fork protectors 61 and 62. A circular hole 120 for attaching the fork protectors 61, 62 to the motorcycle 10 is provided at the lower ends of the first protector portions 61a, 62a. The lower end B of the second protector parts 61b and 62b is formed in an acute angle shape.

(3) Attachment state of fork protector Next, the attachment state of the fork protectors 61 and 62 will be described with reference to FIGS. Hereinafter, the structure on the left side of the motorcycle 10 will be mainly described, and the description on the right side having the same structure as the left part will be omitted as appropriate.

  FIG. 4 is an arrow view from the F1 direction shown in FIG. FIG. 5 is an enlarged left side view of the motorcycle 10. 6 is a cross-sectional view taken along the line CC of FIG. In FIG. 4, the front fender 80 is omitted in order to clarify the configuration of the fork protectors 61 and 62.

  As shown in FIG. 4, the lower ends of the inner tubes 51 a and 52 a are attached to both ends of the axle 21 in the vehicle width direction. The inner tubes 51 a and 52 a extend upward from the axle 21. The inner tubes 51a and 52a are inserted into the outer tubes 51b and 52b. As shown in FIG. 5, a seal member 150 is provided inside the lower ends of the outer tubes 51b and 52b.

  The outer tubes 51b and 52b are connected by an under bracket 70. The steering shaft 95 is erected from the center of the under bracket 70 in the vehicle width direction. The steering shaft 95 is supported by the head pipe 90hp so as to be rotatable about the axis of the steering shaft 95.

  The fork protectors 61 and 62 are fixed to the lower ends of the inner tubes 51a and 52a. Specifically, the fork protectors 61 and 62 are attached by inserting bolts 130 through the circular holes 120 formed at the lower ends of the first protector portions 61a and 62a.

  A stay 140 for fixing the brake hose 87 is attached to the stay attaching portion 100 of the fork protector 61.

  As shown in FIGS. 4 and 5, the first protector portion 61a covers the inner tube 51a in front of the inner tube 51a. That is, the 1st protector part 61a is arrange | positioned ahead of the inner tube 51a along the longitudinal direction of the inner tube 51a. The 1st protector part 61a is formed along the outer surface of the inner tube 51a formed in the cylindrical shape.

  Moreover, the 1st protector part 61a is extended in the vehicle width direction outer side of the inner tube 51a, as shown in FIG. Specifically, the 1st protector part 61a covers the front from the line (alpha) which connects the lower end rear part of the inner tube 51a, and the lower end front part of the outer tube 51b among the vehicle width direction outer side surfaces of the inner tube 51a.

  The 2nd protector part 61b is connected with the one end part inside the vehicle width direction of the 1st protector part 61a by the rivet 110. The 2nd protector part 61b is formed along the outer surface of the inner tube 51a formed in the cylindrical shape.

  The 2nd protector part 61b is located above the center part in the longitudinal direction of the inner tube 51a. Moreover, the 2nd protector part 61b is located above the lower end part of the inner tube 51a. Therefore, the rear part of the lower end of the inner tube 51a is not covered by the second protector part 61b and is exposed.

  Here, as shown in FIG. 5, the front wheel 20 includes a wheel 20 a that is rotatably supported by the axle 21, and a tire 20 b that is attached to the outer periphery of the wheel 20 a. The upper end portion of the inner tube 51a overlaps with the tire 20b when viewed from the side of the vehicle body. The upper end portion of the second protector portion 61b overlaps the tire 20b when viewed from the side of the vehicle body. That is, the upper end portion of the inner tube 51a and the upper end portion of the second protector portion 61b are located outside the outer periphery of the tire 20b.

  Moreover, the 2nd protector part 61b is extended from the one end part by the side of the front wheel 20 of the 1st protector part 61a to the back of the inner tube 51a. Specifically, as shown in FIG. 6, the second protector portion 61b extends to the center in the vehicle width direction on the rear surface of the inner tube 51a.

  Further, as shown in FIG. 6, a notch A is formed between the front forks 51 and 52 and the front wheel 20 at the upper ends of the fork protectors 61 and 62.

(Function and effect)
Conventionally, even if a fork protector is attached to the front surface of the inner tube and the outer surface in the vehicle width direction, the inner tube is still damaged.

  The inventor has obtained the knowledge that such damage to the inner tube is caused by stones wound up by the rotation of the wheel. Further, the inventor has found that most of the damage on the rear surface of the inner tube occurs at a position where the inner tube overlaps with the wheel in a side view of the vehicle body.

  Here, the fork protectors 61 and 62 according to the present embodiment cover the inner tubes 51a and 52a in front of the inner tubes 51a and 52a, and extend along the longitudinal direction of the inner tubes 51a and 52a. And second protector portions 61b and 62b extending from one end portion of the first protector portions 61a and 62a on the front wheel 20 side to the rear of the inner tubes 51a and 52a.

  Therefore, as shown in FIG. 7, stones and the like that are wound up by the rotation of the front wheel 20 and fly toward the inner tubes 51a and 52a from the rear of the vehicle body are rebounded by the second protector portions 61b and 62b. Therefore, it can suppress that the rear surface of the inner tubes 51a and 52a is damaged.

  Further, stones and the like that are wound up by the forward traveling vehicle and fly from the front of the vehicle body toward the inner tubes 51a and 52a are rebounded by the first protector portions 61a and 62a. Therefore, it is possible to prevent the front surfaces of the inner tubes 51a and 52a from being damaged.

  Thus, according to the fork protectors 61 and 62 according to the present embodiment, it is possible to suppress the damage of the inverted fork. As a result, since the service life of the front forks 51 and 52 can be extended, the labor and cost required for replacement of the front forks can be reduced.

  Further, the second protector portions 61b and 62b according to the present embodiment overlap the tire 20b when viewed from the side of the vehicle body. Therefore, the 2nd protector parts 61b and 62b can protect effectively the part which is easily damaged among the rear surfaces of the inner tubes 51a and 52a.

  Moreover, the 2nd protector parts 61b and 62b which concern on this embodiment are located above the center part in the longitudinal direction of the inner tubes 51a and 52a. For this reason, the part which slides frequently in the outer tubes 51b and 52b among the inner tubes 51a and 52a can be effectively protected. Therefore, it is possible to prevent the seal member 150 from being damaged by the damaged inner tubes 51a and 52a.

  Moreover, the 2nd protector parts 61b and 62b which concern on this embodiment are located above the lower end part of the inner tubes 51a and 52a. Thus, the lower end portions of the inner tubes 51a and 52a are not covered with the second protector portions 61b and 62b. Therefore, the mud sand that has entered between the inner tubes 51a and 52a and the fork protectors 61 and 62 can be easily discharged.

  Moreover, the 2nd protector parts 61b and 62b which concern on this embodiment are extended from the one end part by the side of the front wheel 20 of the 1st protector parts 61a and 62a to the back of the inner tubes 51a and 52a. Therefore, as shown in FIG. 7, the inner part in the vehicle width direction of the rear surfaces of the inner tubes 51a and 52a can be reliably protected.

  Moreover, the 2nd protector parts 61b and 62b which concern on this embodiment are extended to the vehicle width direction center part among the rear surfaces of the inner tubes 51a and 52a. Therefore, as shown in FIG. 7, the outer part in the vehicle width direction of the rear surfaces of the inner tubes 51a and 52a can be reliably protected.

  Further, the upper end portions of the fork protectors 61 and 62 according to the present embodiment have a cutout portion A between the front forks 51 and 52 and the front wheel 20. Therefore, when the under bracket 70 and the front fender 80 move downward, the fork protectors 61 and 62 can be prevented from interfering with the under bracket 70 and the front fender 80.

  Moreover, the lower end part B of the 2nd protector parts 61b and 62b which concern on this embodiment is formed in acute angle shape. Therefore, compared with the case where the lower end portions of the second protector portions 61b and 62b are formed in a rectangular shape, the manufacturing cost and the weight of the second protector portions 61b and 62b can be reduced.

  Moreover, the 1st protector part 61a, 62a and the 2nd protector part 61b, 62b which concern on this embodiment are arrange | positioned along the outer surface of the inner tubes 51a, 52a. Therefore, the inner tubes 51a and 52a can be disposed in a compact manner.

(Other embodiments)
As described above, the contents of the present invention have been disclosed through one embodiment of the present invention. However, it should not be understood that the description and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments will be apparent to those skilled in the art.

  For example, in the above embodiment, the case where the fork protectors 61 and 62 are attached to the front forks 51 and 52 has been described. However, when the rear fork is connected to the rear wheel 30, the fork protectors 61 and 62 are used as the rear forks. It may be attached.

  In the above embodiment, the second protector portions 61b and 62b are connected to one end portion of the first protector portions 61a and 62a on the front wheel 20 side. However, as shown in FIG. You may connect with the one end part of the vehicle width direction outer side of 61a, 62a.

  Moreover, in the said embodiment, although the notch part A was formed in the 1st protector part 61a, 62a and the 2nd protector part 61b, 62b, you may form the notch part A only in any one.

  Moreover, in the said embodiment, although 1st protector part 61a, 62a and 2nd protector part 61b, 62b were formed as a different body, you may form integrally.

  As described above, the present invention naturally includes various embodiments that are not described herein. Therefore, the technical scope of the present invention is defined only by the device-specific matters according to the scope of claims reasonable from the above description.

DESCRIPTION OF SYMBOLS 10 ... Motorcycle 20 ... Front wheel 20a ... Wheel 20b ... Tire 21 ... Axle 30 ... Rear wheel 30a ... Wheel 30b ... Tire 31 ... Axle 32 ... Rear arm 33 ... Pivot shaft 40 ... Engine 51, 52 ... Front fork 51a, 52a ... Inner Tube 51b, 52b ... Outer tube 61, 62 ... Fork protector 61a ... First protector 61b ... Second protector 70 ... Under bracket 75 ... Upper bracket 80 ... Front fender 85 ... Steering 86 ... Brake caliper 87 ... Brake hose 90 ... Body frame 90hp ... head pipe 95 ... steering shaft 100 ... stay mounting part 110 ... rivet 120 ... circular hole 130 ... screw 140 ... stay A ... notch part B ... lower end part

Claims (11)

A fork protector attached to an inverted fork having an inner tube extending upward from an axle to which a wheel of a saddle-ride type vehicle is attached, and an outer tube connected to an upper portion of the inner tube,
A first protector that covers the inner tube in front of the inner tube and extends along a longitudinal direction of the inner tube;
A fork protector comprising: a second protector portion extending from one end portion in the vehicle width direction of the first protector portion to the rear of the inner tube. The wheel includes a wheel rotatably supported on the axle, and a tire attached to an outer periphery of the wheel.
2. The fork protector according to claim 1, wherein the second protector portion overlaps the tire in a side view of the vehicle body. 2. The fork protector according to claim 1, wherein the second protector portion is positioned above a central portion in the longitudinal direction of the inner tube. The fork protector according to claim 1, wherein the second protector portion is located above a lower end portion of the inner tube. 2. The fork protector according to claim 1, wherein the second protector portion extends from one end portion of the first protector portion on the wheel side to a rear side of the inner tube. The fork protector according to claim 5, wherein the second protector portion extends to a vehicle width direction center portion of a rear surface of the inner tube. The saddle riding type vehicle further includes a steering shaft and an under bracket that supports a lower end of the steering shaft,
Between the fork and the wheel,
The fork protector according to claim 1, wherein an upper end portion of at least one of the first protector portion and the second protector portion has a notch portion. 2. The fork protector according to claim 1, wherein a lower end portion of the second protector portion is inclined forward and downward in the vehicle body. The fork protector according to claim 1, wherein the first protector part and the second protector part are disposed along an outer surface of the inner tube. A straddle-type vehicle comprising an inverted fork having an inner tube extending upward from an axle to which wheels are attached and an outer tube connected to an upper portion of the inner tube, and a fork protector attached to the inverted fork. ,
The fork protector is
A first protector that covers the inner tube in front of the inner tube and extends along a longitudinal direction of the inner tube;
A straddle-type vehicle comprising: a second protector portion extending from one end portion of the first protector portion in the vehicle width direction to the rear of the inner tube.   A straddle-type vehicle comprising the fork protector according to any one of claims 2 to 9.

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