Honda Giken Kogyo Kabushiki Kaisha

Honda Motor Co., Ltd.

Kazuhiko Tsunoda

Norihiro Kurata

Yutaka Murata

Shinichi Miyakoshi

Tomoyuki Tagami

Takashi Ogino

Yasuyuki Tsurumi

Masamichi Komori

Tokio Isono

Shigeru Hattori

Toshimitsu Asakura

Osami Tanaka

Hideaki Akiyama

Hiroyuki Furuyama

The present invention relates to a polygonal rib structure having ribs directed orthogonal to one plane and intersecting each other to form polygonal shapes. More particularly, to a shock absorbing polygonal rib structure. In a polygonal rib structure having ribs directed orthogonal to one plane and intersecting each other to form polygonal shapes, a thickened central portion located at a substantially central portion in the longitudinal direction of each side of the polygonal rib is bisected. The opposed parting surfaces formed upon the bisection are spaced from each other to form an opening portion, and each side of the polygonal rib is so shaped that the cross-sectional area of the opening portion is reduced as one goes from the opening end toward the depth. Thus, an opened polygonal rib structure is formed.

Openinged polygonal rib structure and polygonal rib structure

An air-bag type rider restraining device for a two wheel vehicle having a scooter structure. A stay is firmly fixed by welding to a front portion of a head pipe. A connection member is fastened with two nuts onto the stay. An air bag supporting frame is connected and fixed to the connection member at its lower end so as to be directed rearwardly and obliquely upwardly along a handle pipe. The air bag supporting frame positions and fixes an air bag unit so as to be directed to a chest position of a rider above a center portion of a steering handle. A ring-like frame structure as an air bag holding member is disposed round a surface of the air bag unit facing the rider wherein a forward load applied to the air bag by holding the inflated air bag from behind is received by the ring-like frame structure.

Rider restraining device for two wheel vehicle

The present invention provides a rider restricting device of a two-wheeled vehicle which is easily applicable to a small-sized vehicle and, at the same time, can absorb a frontward load and alleviate a load applied to a rider. The rider restricting device has left and right knee portion pads such that a pad support member for each mounts to a connecting member such that a load absorbing member is mounted in either the pad support member or the connecting member.

Rider restriction device of two-wheeled vehicle

A motorcycle body frame structure made of an aluminum-based alloy, and suitable for off-road jumping and landing due to its increased rigidity and toughness, and the large stroke of its shock absorber. Maintenance is facilitated because the upper frame member is detachable from the head pipe and from the coupling member connecting the rear portions of the upper and lower frame members. The strength of the engine hanger is enhanced by securing it to a member connecting the front and rear frame portions. A large-size fuel tank is accommodated in a space defined between the upper frame member and left and right lower frame members.

Motorcycle body frame structure

A wheel suspension system for a motorcycle including a relatively stable member and a swingable member swingably connected with the stable member and supporting thereon a road wheel. The wheel suspension system comprises at least one torsion bar arranged on the stable member, a force transmission route adapted to transmit forces acting thereon, the force transmission route being connected with the swingable member and the torsion bar, and a lever type damper having an operation shaft adapted to provide damping forces when rotated, the operation shaft being engaged with the force transmission route. The system is substantially free from restrictions with respect to configuration and damping force producing direction.

Wheel suspension system for motorcycles

There is disclosed a frame-rear suspension assembly for a motorcycle and the like which comprises a frame including right and left tubular members, a rear fork pivotally connected to the right and left tubular members and a cross member made of a light alloy and provided between the right and left tubular members, and a rear-suspension system including a spring-loaded damper with one end pivotally connected to the frame, and link means for connecting the other end of the spring-loaded damper to the rear fork. The cross member is detachably connected between the right and left tubular members and the link means is connected to the cross member.

Frame-rear suspension assembly for a motorcycle and the like

A front brake system for a motorcycle provided with a front suspension system comprising a link mechanism having a quadrilateral side configuration wherein an upper fork secured to the front end of a vehicle body frame so as to be pivotable to the right and left and a lower fork which supports a front wheel are interconnected through two front arms and two rear arms. The front brake system comprises a brake disk integrally fixed to the front wheel and held rotatably thereby and a brake caliper for braking the front wheel by pressing a brake pad against the brake disk, the brake caliper being disposed below the lower fork and behind a perpendicular line passing through a front wheel axle. The caliper is mounted so as to utilize space effectively and in a low position to lower the center of gravity, and a simplified anti-driving mechanism is provided.

Front brake system for motorcycles

Front fender for motorcycle

A link motion type suspension system for a front road wheel of a motorcycle which includes an upper fork supported on a body frame, a lower fork supporting the front road wheel thereon, and a shock absorber connected for operation between the upper and lower forks through links. In order to minimize the weight of the forks, component parts of at least one of the upper fork and the lower fork of the suspension system is hollow.

Suspension system for a front road wheel of a motorcycle

A rear suspension system mounted on a motorcycle having a body frame, a rear wheel and a rear wheel supporting member which is pivotable together with a vertical movement of the rear wheel. The system comprises a pivotal damper disposed on the body frame and having an operating shaft which is integrally pivotable with a link member interlocked with the rear wheel supporting member, and a coil spring tensioned between the body frame and the link member in a position different from the position of the pivotal damper. With such arrangement, there is attained increased design freedom with respect to changing the capacity of the damper, reduction in size and weight of the coil spring, and increase in size and capacity of devices disposed in the vicinity of the coil spring.

Rear suspension system for motorcycles

A rear suspension system for a motorcycle having a progressive damping characteristic. The rear suspension system includes a rear wheel support member having a truss structure including a front corner portion pivotally supported on a motorcycle body frame, a rear corner portion having a rear wheel supported thereon, and an upwardly closing top corner portion. Two link members are each pivotally supported on the body frame and are connected to each other, and a shock absorber is interposed between one of the two link members and the body frame. In accordance with such system, the unsprung load can be reduced to a relatively low level, and at the same time the degree of a progressive change of the damping force can be set to be relatively large.

An exhaust system for motor vehicles comprising a plurality of exhaust pipes and silencers connected thereto, the silencers being disposed above a rear wheel and at least partially inside a rear cowling. A dynamic effect of the exhaust pipes against the exhaust of an engine is suppressed to an appropriate extent while attaining a favorable external appearance.

Growing community of inventors

Saitama, Japan

Kazuhiko Tsunoda