Abstract: A vehicular openable roof hood for covering an opening portion on the upper surface of a roof of an automotive vehicle, the hood comprising a pair of arms adapted to turn about a pair of pivotal shafts on the roof, a hood securing plate fixed to the distal ends of the arms to immovably hold the distal end of the hood, a hood cloth extending round the upper surface and the front edge of the hood securing plate to be secured to the latter from the bottom side thereof and position fixing means for immovably holding the hood at a position where it is kept in an opened state, wherein the hood securing plate is immovably held at the position where the hood is opened by allowing a belt to be inserted and passed through an insert hole on the hood securing plate and the hood securing plate is formed with engagement holes through which engagement members are introduced, the engagement holes comprising a wide part and a narrow part, respectively, so that the engagement members are first inserted through the wide parts f

Abstract: A cowl structure for use in an automotive body of the type that a plurality of cowl panels are joined together to define a space with a closed box like cross section. In this cowl structure, a cowl top panel having a recess defined for receiving a window glass of an automobile is bent downwardly in a stepped manner at a widthwise middle portion on the rearward side thereof, while a cowl upper panel is bent upwardly in a like stepped manner at a widthwise middle portion on the forward side thereof in such a manner that the position of joint on the rear end portion of said both panels may be located at a lower level than that of said window glass receiving recess. Also, the cowl top panel and the cowl upper panel located in a confronted relationship with the both side lower ends of the window glass are joined together with a side body panel with three pieces of said panels being overlapped one upon another by way of a two-row spot-welding.

Abstract: A two-and-four-wheel drive shifting system of the type not including a differential gear unit comprises a pair of output shafts extending opposedly from each other and mounted rotatably independently of each other, an input member mounted concentrically and rotatably on one end of one of the pair of output shafts, and a sliding clutch mounted operatively on the other of the pair of output shafts. The sliding clutch having an engagement claw adapted to commonly engage with claws provided on one output shaft and on an input member in such a manner that the sliding clutch may be shifted in sliding motion in the axial direction along the other output shaft so as to selectively engage and disengage with either of the output shafts and the input member so that either the two-wheel or four-wheel drive position can be selected.

Abstract: A speed changing apparatus usable for a small car of the type including a bar-shaped steering handle and a speed changing gear mechanism having plural forward movement stages and a single backward movement stage is disclosed which is characterized in that shifting of speed changing gears to any one of the forward and backward movement stages is controlled by rotational displacement of a rotary type change cam and the apparatus is provided with a stopper mechanism adapted to limit rotation of the change cam within the range of an angle of rotation which is determined by the forward movement stages, wherein the stopper mechanism is released from the operative state by use of an actuating lever which is disposed on the handle, thereby assuring inhibition of an occurrence of damage or injury of gears due to incorrect handling by virtue of arrangement which is so made that shifting to the backward movement is achieved by very simple operation but shifting of any gear cannot be achieved unless handling is performed

Abstract: An improved steering system for a small-sized light-weight wheeled vehicle, such as an all-terrain vehicle being equipped with balloon tires, which comprises independent steering mechanisms adapted respectively to the steering operation of the front and rear wheels of the vehicle.

Abstract: An improved power transmission system for use with a light saddle-type vehicle with an internal combustion engine of cross-mounted type has an improved construction such that there are provided a split type crank case adapted to be split generally centrally into two counterparts in the vertical way, an output shaft mounted on the bottom of and extending along a splitting line of the crank case, and a bevel gear transmission disposed intermediate the output shaft and a secondary drive shaft so that the driving power on the secondary drive shaft from the engine may be transmitted operatively to the output shaft through the bevel gear transmission, and/or that there is provided an auxiliary transission mounted outwardly of an outer bearing means of the transmission housed in the case, and adapted to provide a substantially large overall gear ratio making an increased stage of gear shifting available in the operation of the vehicle, whereby the maneuverability of the vehicle can be improved substantially.

Abstract: The present invention relates to an improvement in the cooling efficiency of an air cooling and vent device for use with a belt drive type power transmission for an all terrain vehicle, wherein cooling air introduced into a belt drive casing by an air suction fan built integrally with a drive pulley of the transmission is forced out of an air outlet provided in the middle position between the drive pulley and a driven pulley to the atmosphere by the suction effect of a cooling fan of the engine.

Abstract: An off-road vehicle is equipped with an endless articulated steel band drive system including a drive wheel, a plurality of idle wheels and an endless belt extending around the drive wheel and the idle wheel. A back slider plate extends along the inner surface of the endless belt to urge the ground contact surface of the endless belt against the ground. The leading portion of the back plate rises upwardly at an angle of with respect to the ground. One of the idle wheels is rotatably mounted to the rear end of the back plate and the back plate is mounted to the vehicle frame by a leaf spring.

Abstract: A steering apparatus for a four-wheel motorcar of the saddle-ride type having two front wheels and two rear wheels, each wheel being fitted with a balloon tire, a front axle steerably supporting the front wheels, a car body connected together in an integral manner by a support frame, a steering shaft connected to the front wheels through a linkage mechanism, and a bearing portion in a head pipe rotatably supporting the upper end portion of the steering shaft integral with said support frame, the lower end portion of the steering shaft being rotatably supported by the front axle.

Abstract: A saddle-type vehicle for operation on irregular and uneven ground, wherein a pair of rear suspension arm assemblies each connected pivotally to the rear part of a main frame of the vehicle. The assemblies have suspension arm portions connected operatively at their middle points to the lower end of a shock absorber, and rear end portions disposed at a higher and/or inner position than front end portion thereof. The main frame has a pair of lower tubes connected rigidly with a corresponding pair of upper tubes by way of connecting members. The pair of lower tubes are formed at their midway portions to provide holding members for the front end portions of the suspension and these holding members are directed in the same direction as swing axes for the suspension assemblies.

Abstract: A new and unique saddle-riding type motorcar having four wheels comprising two front wheels and two rear wheels, wherein each of the front and rear wheels has a balloon tire mounted thereon and only the front wheels are rotatably supported on axles in such a manner as to turn in both directions relative to the longitudinal axis of the motorcar and the latter is steered by steering the front wheels by means of a bar handle constituting a steering mechanism.

Abstract: A small car body comprises a lower half part which is integrally molded of a synthetic resin, and a front panel, a roof panel and a roll bar panel which are jointed to the lower half part. The small car body includes a chassis frame in the lower half part which is provided with a front wheel suspension arrangement. The lower half part has a central indented area for accommodating seats and outwardly extending skirts for accommodating the chassis frame.

Abstract: A multicylinder engine whose working cylinders are variably controlled in number to suit operating requirements, with an air fuel mixture fed from a single throttle valve to the working cylinder or cylinders through an intake manifold, includes at least one normally closed control valve installed in at least one intake pipe of the intake manifold. When the throttle valve has opened to a prescribed degree, the control valve instantly opens fully or almost fully or to a prescribed degree, independently of the throttle valve.

Abstract: A multicylinder engine whose working cylinders are variably controlled in number to suit operating requirements, with an air fuel mixture fed from a single throttle valve to the working cylinder or cylinders through an intake manifold, includes at least one normally closed control valve installed in at least one intake pipe of the intake manifold. When the throttle valve has opened to a prescribed degree, the control valve instantly opens fully or almost fully or to a prescribed degree, independently of the throttle valve.

Abstract: A rotational speed number controlling device for automatic transmissions for changing speeds by automatically changing a plurality of centrifugal clutches in response to the number of revolutions of the engine wherein a sliding piece is connected to a rotary shaft to which the rotation of a low speed side centrifugal clutch is to be transmitted so as to be able to transmit rotations and to be slidable in the axial direction in response to the driving torque so that the number of engaging rotations of a high speed side centrifugal clutch may be varied by the sliding of the above mentioned sliding piece caused in response to the driving torque. For example, in the case of a quick acceleration at the time of the second speed running in an automatic three-speed transmission, the high speed side centrifugal clutch may not be immediately engaged but the second speed state may be maintained until a sufficient acceleration and then the high speed side centrifugal clutch may be engaged.

Abstract: A multicylinder engine whose working cylinders are variably controlled in number to suit operating requirements, with an air fuel mixture fed from a single throttle valve to the working cylinder or cylinders through an intake manifold, includes at least one normally closed control valve installed in at least one intake pipe of the intake manifold. When the throttle valve has opened to a prescribed degree, the control valve instantly opens fully or almost fully or to a prescribed degree, independently of the throttle valve.

Abstract: A small-type four-wheel automobile, especially one adapted to carry one or two persons, has a generally U-shaped swing arm pivotally connected at ends of its branched arms to a chassis frame which supports front wheels, on this swing arm is mounted an engine unit which includes a power train, from an engine to an axle for rear wheels that serve as drive wheels, in a unitary construction.

Abstract: Automobile windows on both sides of the vehicle are curved inwardly and arcuately toward the top of the compartment and are made separate from the doors and slidably abutted at least at the front edges on the support frame for the windshield, at least either of the side windows being made openable by sliding them upwardly. When opened, they are accommodated in recesses formed for that purpose in the roof that covers a middle part of the ceiling space above the car body. Alternatively, the windows extend toward each other until their upper edges overlap along the central longitudinal line of the ceiling space above the car body, the windows being made slidable relative to each other, one over the other in a superposed relation, so that either window, when opened, is partly or fully superposed, as desired, parallelly over or under the other.

Abstract: A process and an apparatus for powder-dispersed composite plating in which a plating solution is recycled while a pulverulent material contained is being uniformly dispersed therein, and a plating tank is located in the recycling circuit, so that a uniform composite-plated coating is formed on an object or objects to be plated, while the consumption and dilution of the ions in the bath are being avoided by the constant renewal of the plating solution due to the recycling. This arrangement permits attainment of the highest possible plating efficiency through the use of an increased current density. Moreover, the particle size and concentration of the pulverulent material mixed in the plating solution can be controlled and thereby improvements in both plating quality and productivity can be achieved. In the case where the objects to be plated are cylinder- or ring-shaped or flat pieces, they can be stacked up in a cylindrical formation and compositely plated altogether to attain a remarkably high productivity.

Abstract: A tricycle having unique rear-wheel suspension means is provided. The rear-wheel suspension means includes a rear frame rotatably bearing two rear wheels. The rear frame is disclosed with a connection shaft perpendicularly thereto substantially at its central portion. The connection shaft is rotatably inserted into a cylindrical boss which is provided adjacent to the end portion of the main frame of the tricycle such that when the connection shaft is inserted into the boss and when the tricycle is normally put on the ground, the extension of the axis of the shaft passes through a certain point below the ground contact point of the front wheel.