Abstract: In a windshield device of a saddle-ride type vehicle, a guide rail is fixed to a vehicle front portion; a moving assembly is movably provided on the guide rail; and a windscreen is supported on the moving assembly. The moving assembly includes a slide member movably attached to the guide rail, a screen supporting member configured to support the windscreen, and a link mechanism arranged between the slide member and the screen supporting member. The link mechanism is configured to increase a movement amount of the screen supporting member to an amount greater than a sliding length of the slide member. Such configuration of the windshield device for the saddle-ride type vehicle reduces the size of a moving mechanism including a moving assembly for the windscreen.

Abstract: In a windshield device of a saddle-ride type vehicle, a guide rail is fixed to a vehicle front portion; a moving assembly is movably provided on the guide rail; and a windscreen is supported on the moving assembly. The moving assembly includes a slide member movably attached to the guide rail, a screen supporting member configured to support the windscreen, and a link mechanism arranged between the slide member and the screen supporting member. The link mechanism is configured to increase a movement amount of the screen supporting member to an amount greater than a sliding length of the slide member. Such configuration of the windshield device for the saddle-ride type vehicle reduces the size of a moving mechanism including a moving assembly for the windscreen.

Abstract: A structure for mounting a front fender that can enhance rigidity of a fin without unduly increasing the thickness of the fin or decreasing the slope of the fin. In one example structure for mounting a front fender, a fin of a front fender is mounted on a fin mounting portion formed in a front fork with a bolt, and a holding member is fastened to the fin mounting portion, together with the fin 55, with the bolt. A tip portion of the holding member is extended to a position separate from the fin mounting portion to support the reverse surface of the fin.

Abstract: This invention relates to a windshield unit for a motorcycle which is capable of reducing hissing noises of wind and improving performance of discharging water without detracting from the motorcycle's appearance while eliminating wind buffeting. The windshield unit includes a wind screen which shields running wind on a cowl disposed on a front portion of the motorcycle body, an air inlet port which guides the running wind to the back side of the wind screen, and an air guide plate which guides air upward and backward from the air inlet port, a step portion with a step on a top surface of the air guide plate that is directed backward and downward to form a drain.

Abstract: This invention relates to a windshield unit for a motorcycle which is capable of reducing hissing noises of wind and improving performance of discharging water without detracting from the motorcycle's appearance while eliminating wind buffeting. The windshield unit includes a wind screen which shields running wind on a cowl disposed on a front portion of the motorcycle body, an air inlet port which guides the running wind to the back side of the wind screen, and an air guide plate which guides air upward and backward from the air inlet port, a step portion with a step on a top surface of the air guide plate that is directed backward and downward to form a drain.

Abstract: A structure for mounting a front fender that can enhance rigidity of a fin without unduly increasing the thickness of the fin or decreasing the slope of the fin. In one example structure for mounting a front fender, a fin of a front fender is mounted on a fin mounting portion formed in a front fork with a bolt, and a holding member is fastened to the fin mounting portion, together with the fin 55, with the bolt. A tip portion of the holding member is extended to a position separate from the fin mounting portion to support the reverse surface of the fin.

Abstract: A motorcycle including a window screen capable of reducing a back pressure applied to a driver during running of the motorcycle. The motorcycle includes an upper cowl for covering an upper front portion of a vehicular body, and a window screen provided over the upper cowl in such a manner as to be tilted rearwardly. The window screen is moved almost along a tilt direction by a moving unit. The moving unit includes a guide portion providing on an upper cowl and extending along the tilt direction, a movable portion movably supported by the guide portion, a drive unit for moving the movable portion along the guide portion, and a coupling portion for coupling the window screen to the movable portion.

Abstract: A windshield mounting structure for vehicles in which a windshield as a sheet for protection from the wind is mounted between a vehicle body frame and a cowling attached at the front of the vehicle body frame. The cowling is attached to a retaining plate, which is rockably mounted on the vehicle body frame and positioned opposite to the front of the windshield. A operating lever is provided for pressing the retaining plate against the windshield to hold the windshield in a fixed position, and for releasing the retaining plate from the windshield so that the windshield height can be adjusted up or down. A ratchet mechanism is provided for supporting the windshield when it is released, and for adjusting the windshield to a desired position. This combination of elements and configuration provides for a structure that increases the freedom of design of the exterior components of the vehicle, particularly the cowling.

Abstract: A motorcycle including a window screen capable of reducing a back pressure applied to a driver during running of the motorcycle. The motorcycle includes an upper cowl for covering an upper front portion of a vehicular body, and a window screen provided over the upper cowl in such a manner as to be tilted rearwardly. The window screen is moved almost along a tilt direction by a moving unit. The moving unit includes a guide portion providing on an upper cowl and extending along the tilt direction, a movable portion movably supported by the guide portion, a drive unit for moving the movable portion along the guide portion, and a coupling portion for coupling the window screen to the movable portion.

Abstract: A windshield mounting structure for vehicles in which a windshield as a sheet for protection from the wind is mounted between a vehicle body frame and a cowling attached at the front of the vehicle body frame. The cowling is attached to a retaining plate, which is rockably mounted on the vehicle body frame and positioned opposite to the front of the windshield. A operating lever is provided for pressing the retaining plate against the windshield to hold the windshield in a fixed position, and for releasing the retaining plate from the windshield so that the windshield height can be adjusted up or down. A ratchet mechanism is provided for supporting the windshield when it is released, and for adjusting the windshield to a desired position. This combination of elements and configuration provides for a structure that increases the freedom of design of the exterior components of the vehicle, particularly the cowling.

Abstract: To provide a structure for containing a U-shaped burglarproof lock in a motorcycle. The motorcycle includes a body frame having a pair of right and left seat frames. A seat is removably mounted on the seat frames. A U-shaped burglarproof lock is provided with an approximately U-shaped hook and a bar releasably locked with an opened end of the hook. The burglarproof lock can be contained without increasing the number of parts and also without affecting both the height of the seat or the arrangement space for members under the seat. Fitted recessed portions are each provided in the inner surfaces of both seat frames to conform with and to removably retain and hold a hook positioned at an attitude substantially along a longitudinal direction of the motorcycle under the seat.

Abstract: An air intake duct is formed on an upper case of an air cleaner. The bottom surface of the air intake duct is also an upper surface of the upper case. An opening portion of the air intake duct is opened rearwardly of the vehicle, and a recessed portion is formed on the upper surface of the upper case at a portion in front of the opening portion of the air intake duct relative to the air flow direction in the air intake duct. As a result, the bottom surface of the opening portion is formed higher than the surface of the recessed portion. The bottom surface of the air intake duct is formed to be gradually upwardly inclined in the direction of the air flow in the air intake duct traveling from the opening portion of the air intake duct to an opening portion formed on the upper surface of the upper case.

Abstract: To provide a compact exhaust apparatus for allowing exhaust sounds of each cylinder to be heard. A muffler includes a tubular member the inside of which is divided into three independent expansion paths by partition plates. The partition plates extend in an axial direction. Each of the expansion paths is divided into a first expansion chamber, a second expansion chamber and a third expansion chamber by diametrical partitions. The first expansion chamber and the second expansion chamber are in communication with each other by way of a pipe while the second expansion chamber and the third expansion chamber are communicated with each other by way of a second pipe. A tail pipe is connected to each pipe to discharge exhaust gas to the outside.

Abstract: A gear shifting system for an automotive vehicle equipped with an internal combustion engine comprises a load sensor for sensing the shift load generated by a shifting motion of a driver or a rider, a power adjusting system for adjusting the engine power of the internal combustion engine, and a control unit for controlling the power adjusting system. The control unit is actuated in response to a signal from the load sensor when the sensed load is equal to or greater than a predetermined value, and outputs a control signal to the power adjusting system so as to adjust the engine power. The load sensor is assembled on a linkage system connected between a shift shaft of the power transmission and the shift pedal, so that the load sensor can detect a stretching load or a depressing load caused by shifting operation in the shift-up or shift-down mode, and for differentiating between them.

Abstract: A motorcycle has a frame assembly supporting a power unit, which is disposed between front and rear wheels, for driving the rear wheel. The frame assembly comprises a front frame supporting the front wheel and a rear frame supporting the rear drive wheel. The front frame is coupled to the rear frame and is swingable with respect to the rear frame laterally of the frame assembly. The rear wheel has a substantially flat tire for suppressing banking movement of the rear frame. The front wheel has a round tire for allowing banking movement of the front frame. The motorcycle also includes a rider's seat mounted on the front frame. A damping device is disposed between the front frame and the rear frame for damping banking movement of the front frame.

Abstract: A fuel injection type two-cycle engine for motorcycles. A fuel injection valve for injecting fuel into an air intake passageway at a predetermined timing is disposed on the upstream side of a reed valve in the air intake passageway communicating with an interior of the engine via the reed valve, with the injection port thereof directed towards the reed valve. An air intake pipe forming the air intake passageway extends nearly in the vertical direction from the upper surface of a crank case at an middle position between a crank shaft extending in the widthwise direction of the vehicle body and a transmission shaft separated from the crank shaft in the back and forth direction and extending in the widthwise direction of the vehicle body, and a fuel injection valve protrudes from this air intake pipe in the back and forth direction.

Abstract: A pair of main frames, which form an essential part of a body frame of a motorcycle, are fixed at the front ends to a head pipe, and extend toward the rear portion of a body at a given increasing interval. Each of the main frames includes therein a partition extending in the longitudinal direction.

Abstract: A motorcycle including a pair of right and left main frame members, an engine being disposed at a lower part of the main frame members, a fuel tank being disposed at an upper part thereof, whereby the motorcycle is provided with a partition wall disposed between the main frame members and the engine. The upper part of this partition wall forms an air passage extending forward from backward of a vehicle body. At a rear portion of this air passage, a carburetor is exposed after penetrating the partition wall. The front end portion of the partition wall forms an air guiding portion extending to the front part of a radiator after riding over the radiator. The carburetor is effectively cooled by travelling air guided by the air passage via the air guiding portion. The partition wall also serves to prevent transmission of radiation of engine to the upper portion of the vehicle body.

Abstract: A two-wheeled motorcycle includes a shell made of thin plates to the front end of which a head pipe is fixed. The shell is opened at its rear side and a rear wheel driving power unit is accommodated by and fixed to the shell. A seat stay carrying a rider's seat and covering the upper part of the rear wheel is pivotally secured at its front end to the shell so as to be rotated upward. A fuel tank is disposed ahead of the rider's seat and pivotally secured at its front end to the shell so as to be rotated upward.