Abstract: 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.

Abstract: There is disclosed a cellular phone in which communication of information for a call including a voice is carried out in a communication section for the call, and communication of information which is different from the call information and which includes an image to be displayed is carried out in a communication section for information. A first display section in which the information for the call is displayed, and a second display section in which details of the information including the image to be displayed are enlarged and displayed are disposed in a cellular phone main body. An attachable/detachable operation key for inputting characters or instruction information is disposed so that the key can be attached/detached with respect to the cellular phone main body. The information is transmitted/received between the attachable/detachable operation key and the cellular phone main body by cable or by radio.

Abstract: 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.

Abstract: An image forming system is provided which includes an optical sheet and an image projector. The optical sheet is constructed by joining a plurality of sheet members with adjoining sheet members meeting to form a joint line. The image projector produces an image and projects the image to the optical sheet through a projection optical system. The relative positional relationship between the image projector and optical sheet is such that the optical axis of the projection optical system included in the image projector perpendicularly intersects the joint line in the optical sheet. Thus, reflection or scattering of light at the joint line is minimized.

Abstract: 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 tip ends 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 provided between the side of he suspension arms and the side of the vehicle body frame, and an engine for driving the left and right rear wheels mounted onto the vehicle body frame. When a suspension spring is attached to the suspension arm side, the engine is not present on the suspension arm side, so that the under-spring weight can be largely reduced, and the riding comfort can be further enhanced.

Abstract: An optical prism (1) for reflecting incident light from an incidence surface (2) suited for incidence of light from an LCD (20) or the like for at least twice before emitting the reflected light as emission light from a predetermined emission surface (4). The optical prism has side surfaces (6L and 6R) crossing the incidence and emission surfaces (2 and 4) and including receded surfaces 7L and 7R) formed such as not to impede an optical path of an effective size, the incident light being led along the optical path from the incidence surface to the emission surface.

Abstract: Three lines' worth of an image are displayed on a columnar display unit 11 comprising a plurality (for example, three) of one-dimensional display devices; this image light beam is made incident on perpendicular deflection means 14, and using the perpendicular deflection means 14, this image light beam is deflected and scanned at high speed in directions perpendicular to the longitudinal direction of the columnar display unit 11 to obtain a two-dimensional image. A plurality of one-dimensional display devices is used, so that compared with conventional devices in which only a single one-dimensional display device is used, even if the rewrite speed (scanning speed) per one-dimensional display device is slow, good image quality free of flicker can be obtained. By further extending this in a configuration using a plurality of columnar display units, a single image can be divided into a plurality of images and displayed in a row on a screen.

Abstract: 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.

Abstract: 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.

Abstract: The front fork of a motorcycle is carried by a steering spindle mounted for angular rotation about the axis of the steering spindle in the steering head member of a motorcycle frame. The steering spindle is rotatable in bearing assemblies at opposite ends of the steering head member of the motorcycle frame, and provision is made for adjustment of the steering head angle by the inclusion in at least one of these bearing assemblies of an eccentric member. The eccentric member is arranged for assembly alternatively in either of two diametrically opposed angular orientations to position the axis of steering spindle in a corresponding one of two angular positions in the central longitudinal vertical plane of the motorcycle frame. A series of eccentric members of different eccentricity may be provided so that a wide range of steering head angle adjustment may be provided.

Abstract: A wiring board manufacturing system, which is an electric wiring forming system, utilizes a magnesium alloy as a conductive metal for wiring pattern forming, and mixes and heats the magnesium alloy chips thereof in a cylinder (feeding unit) with a built-in screw, melting same into an alloy slurry of a thixotropic state. The alloy slurry thereof is discharged onto a board. The board is mounted on a work stage of a stage unit, which is driven and controlled in accordance with wiring pattern data inputted by a CAD or the like, and a wiring pattern is formed on the board with the discharged alloy. According to this system, it is possible to provide an electric wiring forming system, which does away with the effects on the environment resulting from waste liquid at manufacturing, enables manufacturing time to be shortened, and moreover, uses an inexpensive metallic material for forming a wiring pattern.

Abstract: 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.

Abstract: The present invention provides an image forming system consisting mainly of an optical sheet and an image projector. The optical sheet is constructed by joining a plurality of sheet members with adjoining sheet members met to form a joint line. The image projector produces an image and projects the image to the optical sheet through a projection optical system. The relative positional relationship between the image projector and optical sheet is such that the optical axis of the projection optical system included in the image projector perpendicularly intersects the joint line in the optical sheet. Thus, reflection or scatterings of light at the joint line is minimized.

Abstract: The present invention is concerned with an optical sheet to be used as a screen on which an image is projected from an image projector. The optical sheet is produced by joining a plurality of optical sheet members with end surfaces thereof met each other as joint surfaces. The optical sheet members are realized with lenticular lens sheets. The lenticular lens sheet has lenses, which are elongated in a second direction, juxtaposed in a first direction orthogonal to the second direction. The optical properties of the optical sheet members that are slightly undulated vary cyclically in the first direction. Herein, the optical sheet members to be joined are a selected pair of optical sheet members whose undulations are substantially identical to each other or symmetrical to each other with respect to the joint surfaces.

Abstract: An optical prism (1) for reflecting incident light from an incidence surface (2) suited for incidence of light from an LCD (20) or the like for at least twice before emitting the reflected light as emission light from a predetermined emission surface (4). The optical prism has side surfaces (6L and 6R) crossing the incidence and emission surfaces (2 and 4) and including receded surfaces 7L and 7R) formed such as not to impede an optical path of an effective size, the incident light being led along the optical. path from the incidence surface to the emission surface.

Abstract: An optical prism (1) for reflecting incident light from an incidence surface (2) suited for incidence of light from an LCD (20) or the like for at least twice before emitting the reflected light as emission light from a predetermined emission surface (4). The optical prism has side surfaces (6L and 6R) crossing the incidence and emission surfaces (2 and 4) and including receded surfaces 7L and 7R) formed such as not to impede an optical path of an effective size, the incident light being led along the optical path from the incidence surface to the emission surface.

Abstract: This invention discloses an optical system which comprises first positioning and connecting portions which are formed by an integral molding on left and right side surfaces of an incidence surface of a second prism while having steps above an incidence surface and includes small bolt holes and positioning pins and second positioning and connecting portions which are formed by an integral molding at both left and right sides of a projection surface of the first prism such that they extend from the both left and right sides from the projection surface and includes small bolt holes and small bolt fitting holes, wherein the positioning pins are fitted into the positioning pin fitting holes and the lower surfaces of the second positioning and connecting portions are brought into contact with the upper surfaces of the first positioning and connecting portions, and thereafter, small bolts are made to pass through and are threaded into the small bolt holes thus integrally connecting the first prism and the second pri

Abstract: 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.

Abstract: An optical prism 100 for reflecting light incident on its light incidence surface 12 suited for incidence of light from an LCD 20 at least twice within itself and emitting the reflected light as emitted light from a light emission surface 14 to the outside. The optical prism is coupled in use with a display element support 30 adapted to suit it. The side surfaces of the optical prism crossing the light incidence surface 12 and light emission surface 14 have projections 90L and 90R for mounting the optical prism on the display element support.

Abstract: 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.