Abstract: This brake pedal device includes an arm portion (21) pivotally supported on a vehicle body to be rotatable, and a pedal portion (22) provided at a distal end portion (21b) of the arm portion (21). The pedal portion (22) includes a first operation portion (31) configured to operate a brake (102), a first uneven portion (33) formed on at least a part of the first operation portion (31), a second operation portion (32) provided at a position different from the first operation portion (31), and a second uneven portion (34) formed on at least a part of the second operation portion (32).

Abstract: This brake pedal device includes an arm portion (21) pivotally supported on a vehicle body to be rotatable, and a pedal portion (22) provided at a distal end portion (21b) of the arm portion (21). The pedal portion (22) includes a first operation portion (31) configured to operate a brake (102), a first uneven portion (33) formed on at least a part of the first operation portion (31), a second operation portion (32) provided at a position different from the first operation portion (31), and a second uneven portion (34) formed on at least a part of the second operation portion (32).

Abstract: A rear-wheel suspension system for a two-wheeled vehicle includes a pair of right- and left-side center frames; a swing arm; and a shock absorber, wherein the shock absorber includes a tubular buffer and a spring, wherein the intake system part is a curved tubular member, wherein a position of the spring is shifted downwardly so that the intake system part are moved toward an interior of the vehicle body by a dimension corresponding to the spring, wherein a lower end of the intake system part is above the upper end of the spring, wherein a part of the intake system part is closer than an outer end of the spring to the center of the tubular buffer, and wherein the shock absorber and the intake system part are disposed between a pair of right- and left-side center frames.

Abstract: A wheel for a vehicle includes a hub, a rim, a plurality of spokes, and a disk member. The hub includes a flange portion, a plurality of spoke pedestals, and a plurality of disk member attaching portions. The flange portion outwardly spreads in a radial direction of the hub and is provided on one end portion of the hub in an axial direction of the hub. The spoke pedestals are provided at substantially regular intervals on an inner side of the flange portion and inwardly projects from the flange portion in the radial direction. The disk member attaching portions are provided at substantially regular intervals on an outer periphery of the flange portion and outwardly projects from the flange portion in the radial direction. The disk member attaching portions are provided between the spoke pedestals in a circumferential direction of the flange portion.

Abstract: In a hydraulic shock absorber 10, a piston holder 41 has an axial side surface 41e formed with an opening of an inclined hole 48b exposed to a rod-side oil chamber 43B. A block ring 71 capable of closing the opening of the inclined hole 48b is provided around a piston rod body 22 at a position between the axial side surface 41e of the piston holder 41 and the upper end of a rebound spring 32.

Abstract: A rear-wheel suspension system for a two-wheeled vehicle includes a pair of right- and left-side center frames; a swing arm; and a shock absorber, wherein the shock absorber includes a tubular buffer and a spring, wherein the intake system part is a curved tubular member, wherein a position of the spring is shifted downwardly so that the intake system part are moved toward an interior of the vehicle body by a dimension corresponding to the spring, wherein a lower end of the intake system part is above the upper end of the spring, wherein a part of the intake system part is closer than an outer end of the spring to the center of the tubular buffer, and wherein the shock absorber and the intake system part are disposed between a pair of right- and left-side center frames.

Abstract: A rear-wheel suspension system for a two-wheeled vehicle capable of further reducing a vehicle width. An upper end of a coil spring of a shock absorber includes a tubular damper case, a rod connected to a piston disposed within the shock absorber and protrusively provided to be capable of making strokes with respect to the tubular damper case and an external hydraulic sub-tank positioned to be lower than an upper end of the shock absorber. Vehicle body component parts include a connecting tube and the sub-tank disposed to be close to the shock absorber above the coil spring.

Abstract: A steering damper device for a saddle riding vehicle includes a tubular damper including a cylindrical damper cylinder and a piston rod slidably passed through the damper cylinder. Either the damper cylinder or the piston rod is supported on an upper frame or a down frame of the saddle riding vehicle. The upper frame extends rearwardly from a head pipe through which a steering shaft passes and which holds the steering shaft therein rotatably about an axis thereof. The down frame extends downwardly from the head pipe. The steering shaft rotates with a bottom bridge. The tubular damper is disposed such that an axis thereof is disposed on a vehicle width direction central plane. The tubular damper extends or contracts as the bottom bridge rotates. The tubular damper extends or contracts within a space between the upper frame and the down frames in a side view.

Abstract: A vehicle shock absorber includes a plurality of communication holes axially provided side by side in a peripheral wall of the cylinder of the damper, another communication hole provided in a peripheral wall of the cylinder and located below a position of piston of the damper, and a third oil chamber provided in an outer tube and an inner tube of a fork body and outside the cylinder and communicating with only a second oil chamber via the communication holes. This configuration enables the vehicle shock absorber to make a damping force generated by the damper positional dependent, and suppresses the entering of an air bubble into the cylinder, even when a cylinder of the damper is located above an oil level in an oil reservoir within the absorber body.

Abstract: A chain guide device wherein it is unnecessary to make a chain guide body a thick and heavy member to enhance the productivity of the chain guide body. The chain guide body is split into a left guide half having a left-side upper split surface and a left-side lower split surface which are formed along a longitudinal direction of a chain and a right guide half having a right-side upper split surface and a right-side lower split surface. The guide bodies, which are roughly U-shaped, can be easily demolded after injection molding to enhance productivity. The contact of the chain with the split surfaces is lessened, as compared with the case where split surfaces are inclined at an angle relative to the longitudinal direction of the chain. Accordingly, wearing of the split surfaces is restrained, and it is unnecessary to make the chain guide body greater in thickness and weight.

Abstract: A pair of left and right arm portions integrally formed by molding with a pivot portion formed on front ends and an axle support portion formed on rear ends. An opening portion with a peripheral portion endlessly contiguously formed by a pivot portion that connects front ends of both arm portions, a cross portion and both arm portions. A pair of left and right indented recessed portions is formed on an inner surface of a wall having support bosses projecting out of a lower surface of the wall. A pair of left and right reinforcing ribs that is positioned outside both recessed portions in the vehicle widthwise direction are integrally formed on the inner surface of the wall on which the support bosses is formed in a projecting manner toward the inside of the cross portion.

Abstract: A steering apparatus for a vehicle includes a stem pipe disposed in a head pipe by upper and lower bearings interposed therebetween, a seal member for covering the upper bearing, and bottom and top bridges mounted on lower and upper ends of the stem pipe, respectively. A single fastening bolt, having a step formed between a head and a threaded surface thereof, is fitted in a pipe insertion hole of the top bridge and the upper threaded portion of the stem pipe. The stem pipe is firmly tightened and supported by a stem pipe slot-tightening mechanism of the top bridge. The fastening bolt is tightened by only a tightening force required to keep the fastening bolt from loosening. Also, a number of components required for the inventive steering apparatus is reduced, since an additional component, previously used for preventing loosening of a fastening bolt, is made unnecessary.

Abstract: A front fork for easily optimizing an oil quantity in a damper cylinder with a relatively simple structure without affecting operability of a free piston even in an assembled state. An escape portion is formed on an outer periphery of a piston rod at a position where a seal member mounted on a sealing cap faces in an opposed manner when a front fork extends to the maximum.

Abstract: A pair of left and right arm portions integrally formed by molding with a pivot portion formed on front ends and an axle support portion formed on rear ends. An opening portion with a peripheral portion endlessly contiguously formed by a pivot portion that connects front ends of both arm portions, a cross portion and both arm portions. A pair of left and right indented recessed portions is formed on an inner surface of a wall having support bosses projecting out of a lower surface of the wall. A pair of left and right reinforcing ribs that is positioned outside both recessed portions in the vehicle widthwise direction are integrally formed on the inner surface of the wall on which the support bosses is formed in a projecting manner toward the inside of the cross portion.

Abstract: A wheel for a vehicle includes a hub, a rim, a plurality of spokes, and a disk member. The hub includes a flange portion, a plurality of spoke pedestals, and a plurality of disk member attaching portions. The flange portion outwardly spreads in a radial direction of the hub and is provided on one end portion of the hub in an axial direction of the hub. The spoke pedestals are provided at substantially regular intervals on an inner side of the flange portion and inwardly projects from the flange portion in the radial direction. The disk member attaching portions are provided at substantially regular intervals on an outer periphery of the flange portion and outwardly projects from the flange portion in the radial direction. The disk member attaching portions are provided between the spoke pedestals in a circumferential direction of the flange portion.

Abstract: A vehicle shock absorber includes a plurality of communication holes axially provided side by side in a peripheral wall of the cylinder of the damper, another communication hole provided in a peripheral wall of the cylinder and located below a position of piston of the damper, and a third oil chamber provided in an outer tube and an inner tube of a fork body and outside the cylinder and communicating with only a second oil chamber via the communication holes. This configuration enables the vehicle shock absorber to make a damping force generated by the damper positional dependent, and suppresses the entering of an air bubble into the cylinder, even when a cylinder of the damper is located above an oil level in an oil reservoir within the absorber body.

Abstract: A chain guide device wherein it is unnecessary to make a chain guide body a thick and heavy member to enhance the productivity of the chain guide body. The chain guide body is split into a left guide half having a left-side upper split surface and a left-side lower split surface which are formed along a longitudinal direction of a chain and a right guide half having a right-side upper split surface and a right-side lower split surface. The guide bodies, which are roughly U-shaped, can be easily demolded after injection molding to enhance productivity. The contact of the chain with the split surfaces is lessened, as compared with the case where split surfaces are inclined at an angle relative to the longitudinal direction of the chain. Accordingly, wearing of the split surfaces is restrained, and it is unnecessary to make the chain guide body greater in thickness and weight.

Abstract: A steering damper device for a saddle riding vehicle includes a tubular damper including a cylindrical damper cylinder and a piston rod slidably passed through the damper cylinder. Either the damper cylinder or the piston rod is supported on an upper frame or a down frame of the saddle riding vehicle. The upper frame extends rearwardly from a head pipe through which a steering shaft passes and which holds the steering shaft therein rotatably about an axis thereof. The down frame extends downwardly from the head pipe. The steering shaft rotates with a bottom bridge. The tubular damper is disposed such that an axis thereof is disposed on a vehicle width direction central plane. The tubular damper extends or contracts as the bottom bridge rotates. The tubular damper extends or contracts within a space between the upper frame and the down frames in a side view.

Abstract: A steering damper ensures a wide longitudinal illumination range of a road surface when a light unit is provided and facilitates layout of parts and simplifies structure without degrading appearance. A steering damper mounting structure is provided for a vehicle, which includes a head pipe, a front fork, a fork bridge, and a steering damper. The steering damper is mounted on the fork bridge and the head pipe. The steering damper dampens a movement transmitted from a side of the front wheel to a handlebar. In this steering damper mounting structure, the steering damper is mounted to the head pipe and the top bridge and disposed on the side of the top bridge between the top bridge and the bottom bridge. Additionally, a light unit is disposed on the side of the bottom bridge between the top bridge and the bottom bridge.

Abstract: A steering apparatus for a vehicle includes a stem pipe disposed in a head pipe by upper and lower bearings interposed therebetween, a seal member for covering the upper bearing, and bottom and top bridges mounted on lower and upper ends of the stem pipe, respectively. A single fastening bolt, having a step formed between a head and a threaded surface thereof, is fitted in a pipe insertion hole of the top bridge and the upper threaded portion of the stem pipe. The stem pipe is firmly tightened and supported by a slot-tightening mechanism of the top bridge. The fastening bolt is tightened by only a tightening force required to keep the fastening bolt from loosening. Also, a number of components required for the inventive steering apparatus is reduced, since an additional component, previously used for preventing loosening of a fastening bolt, is made unnecessary.