Honda Giken Kogyo Kabushiki Kaisha

Honda Motor Co., Ltd.

Honda Giken Kabushiki Kaisha

Hiroyoshi Kobayashi

Shinji Takayanagi

Takashi Ozeki

Yohei Makuta

Shinji Furuta

Makoto Araki

Takuya Tagami

Tsubasa Nose

Seiichi Kurohori

Yoshiyuki Horii

Masahiro Kuroki

Mikio Kashiwai

Mitsuo Nakagawa

Yuichi Uebayashi

Yohei Kawasaki

Haruomi Sugita

Tsuyoshi Tsuda

Takashi Kudo

Hirotaka Nagatani

Yasuhiko Jinbu

Osamu Kikuchi

Kenzo Shimizu

Hirosi Takamoto

Taihei Setoguchi

Shingo Ueda

Yohei Makata

Noriya Shimozato

Michiko Miwa

A vehicle body includes a vehicle body frame and a steering rotation unit that is supported on the vehicle body frame and that rotates about a steering axis. The vehicle includes a variable trail length mechanism. The variable trail length mechanism varies a trail length of a front wheel and includes an oscillation unit and a torsion reduction portion. The oscillation unit is connected with the steering rotation unit so as to be oscillatable in a fore-aft direction and supports the front wheel. The torsion reduction portion reduces torsion of the oscillation unit in a vehicle width direction through the oscillation unit combined with the steering rotation unit under a condition in which the trail length is changed such that the front wheel is disposed at a rearmost position.

Vehicle

A mobile vehiclehas two wheelson the rear side of a vehicle body, and is capable of causing a roll driving moment to act on the vehicle bodyby an actuatorin a roll driving mechanism. A control devicecontrols the actuatorsuch that the function characteristics of the roll driving moment implemented by the control of the actuatorwith respect to a vehicle body roll angle (inclination angle in the roll direction of the vehicle body) become as shown in FIG.A orB.

Mobile vehicle

A system for performing posture control of a motorcycle is such that in outputting a synthesized output by adjusting a yaw direction output and a roll direction output outputted from a displacement detection sensor by an adjustment part respectively, a synthesized output in which the yaw direction output is larger than the roll direction output is outputted when a vehicle speed is low, and a synthesized output in which the roll direction output is larger than the yaw direction output is outputted when the vehicle speed is high. Accordingly, in either a case where the vehicle is traveling at a low speed or a case where the vehicle is traveling at a high speed, the displacement and the behavior of a motorcyclecan be detected with high accuracy thus eventually realizing a control of the posture of the motorcyclewith high accuracy.

Posture control device of motorcycle and motorcycle

A left drive shaft and a right drive shaft each include an inside constant velocity joint and an outside constant velocity joint with a ball spline mechanism provided between the inside constant velocity joint and the outside constant velocity joint for enabling the distance between the inside constant velocity joint and the outside constant velocity joint to be contracted and extended. The ball spline mechanism includes a spline shaft having an outer circumferential surface provided with a plurality of axial grooves extending in the axial direction, a tubular portion surrounding the periphery of the spline shaft and having an inner circumferential surface provided with a plurality of axial grooves extending in the axial direction and a plurality of balls capable of rolling while being fitted in the axial grooves and in the axial grooves. In addition, a left lower arm and a right lower arm are formed into an A-shape and are supported by a lower part of a rising portion and a lower end of the downwardly extending portion via a lower supporting shaft.

Swingable vehicle

A motortricycle with oscillation mechanism including left and right suspension arms respectively swingably mounted onto a vehicle body frame, rear wheels mounted respectively onto the outer portions of the left and right suspension arms. An oscillation mechanism permitting leftward and rightward oscillation of the vehicle body frame relative to the side of the suspension arms is provided between the suspension arms and the vehicle body frame, and an engine for driving the left and right rear wheels is mounted onto the vehicle body frame. Since the engine of the motortricycle is mounted on the vehicle body frame rather than on the suspension arms, weight on the suspension arms can be largely reduced, and the riding comfort can be further enhanced.

Motortricycle with oscillation mechanism

In a three-wheel vehicle, right and left suspension arms are independently attached to a front swinging shaft and a rear swinging shaft so that the suspension arms can swing vertically, and the front swinging shaft and the rear swinging shaft function as a swinging shaft for swinging the body frame. A swinging mechanism is provided to restrict lateral rotation of the body frame.

Three-wheel vehicle with swinging mechanism

A tricycle with independently-suspended rear wheels and having a rocking mechanism and a single shock absorber used to effect the damping action of both the left and the right suspension arms connected to the rear wheels. The left and right suspension arms are connected by a shock absorber and arcuate links and bell cranks provided at the opposite ends of the shock absorber. In response to upward and downward movement of the left and right suspension arms, the single shock absorber can be expanded and contracted to effect damping action of the left and right suspension arms. Accordingly, weight and cost can be reduced when compared with a conventional tricycle having two shock absorbers, one provided for each of the left and right suspension arms.

Tricycle with a rocking mechanism

A vehicle including a body frame ( ) commonly used on a two-wheeled automotive vehicle ( ), a three-wheeled automotive vehicle ( ), and a four-wheeled automotive vehicle ( ). A head pipe ( ) is formed on a front frame ( ) of the body frame. The head pipe has an adjustment mechanism ( ) for adjusting a position and an angle of a center line (A ) of a steering shaft ( ) relative to a center line (C ) of the head pipe. A rear frame ( ) of the body frame has rear walls formed with pluralities of rear mount portions ( ) to allow rear units ( ) of different kinds for the two-, three- and four-wheeled automotive vehicles to be selectively mounted.

A rear wheel suspension system for a four-wheeled vehicle suitable for attaining vehicle weight reduction, setting weight distribution of the vehicle, improving vehicle design freedom, and decreasing the number of components as compared to conventional rear wheel suspension systems. The system includes a joint member mounted in a rear portion of a vehicle body with a pair of left and right front wheels secured thereto, the joint member including a roll shaft extending substantially in the longitudinal direction of the vehicle body, and connecting to a vertical swing shaft extending in the transverse direction of the vehicle body. In addition, a power unit for supporting the two rear wheels is connected to a rear portion of the joint member by means of the vertical swing shaft, thereby allowing the power unit to be secured to the vehicle body rollably and swingably.

Rear wheel suspension system in vehicle

A vehicular windshield is provided which eliminates the need for a hard coating and which is relatively light in weight. The vehicular windshield includes a glass surface to be wiped by a wiper, and includes a transparent resin windshield main body. The windshield main body has upper and lower mounting portions for mounting the windshield main body to a roof and a front frame of a vehicle. A glass plate is fastened to the windshield main body to form the surface for a wiper. An adhesive sheet is provided for fastening the glass plate to the windshield main body.

Windshield for vehicle

To reduce the cost of a front wheel steering system for automotive three- and four-wheeled vehicles by utilizing a steering angle ratio varying means having a simple construction. In a front wheel steering system for automotive four-wheeled vehicles, a steering shaft rotatably mounted to a head pipe steers the right and left front wheels. The steering stem is disposed below the steering shaft offset from the steering shaft. The steering stem is connected to the steering shaft via a link mechanism. The right and left front wheels are connected to the steering stem via a tie rod. The link mechanism includes an upper link, a lower link, and a universal coupling connecting the upper link and the lower link. The steering shaft is disposed at the midsection between the steering stem and the universal coupling when the link mechanism is viewed in the direction of the axis of the steering shaft.

Growing community of inventors

Saitama, Japan

Hiroyoshi Kobayashi