Abstract: A power transmitting apparatus has a clutch member and a pressure member. The cam surfaces of the pressure-contact assist cam face each other. The cam surfaces of the back torque limiter cam face each other. A receiving portion for a clutch spring (10) on the pressure member (5) side has a receiving member (11) separate from the pressure member (5). A first cam surface (C1) and a second cam surface (C2), constituting the back torque limiter cam, are, respectively, formed on the receiving member (11) and the clutch member (4). A third cam surface (C3) and a fourth cam surface (C4), constituting the pressure-contact assist cam, are, respectively, formed on the pressure member (5) and the clutch member (4).

Abstract: An object of the present invention is to provide a saddle-type vehicle which can switch between the parking brake state and the neutral state using a clutch actuator configured to operate the clutch and thus lower the manufacturing cost. According to the present disclosure, there is provided a saddle-type vehicle which can be driven by a driver sitting on a seat and steering a bar handle.

Abstract: A saddle-type vehicle can be driven by finer control by judging the driver's demand based on operation of the driver relative to the vehicle when the engine is started from the idle-stop state. A saddle-type vehicle can include bar handle mounted on its opposite tip ends a grasping grip grasped by the driver and a throttle grip for an accelerator operation; an engine controller for automatically stopping an engine and making the engine an idle-stop state: and a clutch. The saddle-type vehicle can include a judgment controller for judging a driver's demand based on operation conditions of the driver relative to the vehicle and a clutch controller for selecting a travel state and a stopped state.

Abstract: A piercing die, a holding body, and a piercing punch are used to form a pressed component having a plate-shaped base portion and a tubular boss portion extending from the base portion. The piercing die has a receiving portion, an outer shape-forming portion, and a die-side cutting edge. The piercing punch has an inner shape-forming portion, a punch-side cutting edge, and a straight portion. In a process of forming a pressed component, the piercing punch is pressed against a preform which is formed from a blank and which has a preliminary boss portion so as to cause part of the preliminary boss portion to flow toward the outer shape-forming portion, and so as to then cut off another part of the preliminary boss portion to form a boss portion.

Abstract: A pressed component is formed by pressing a preform having a tapered tubular portion and a sloping portion provided at an end of the tubular portion and curved in a circular arc. Pressing is performed by a forming die apparatus including a holding body, a piercing punch, and a piercing die. When the tubular portion of the preform is held by an outer fixing and supporting portion of the holding body and an inner fixing and supporting portion of the piercing die, the forming die apparatus cuts off a portion of the sloping portion using an outer cutting edge of the piercing punch and an inner cutting edge of the piercing die and then causes a pressing portion of the piercing punch to bend and press the remaining portion of the sloping portion within a forming space to form a corner portion.

Abstract: A power transmitting apparatus for transmitting or cutting-off the rotational driving power inputted to an input member to or from an output member by press-contacting or releasing the press-contacting force between driving-side clutch discs and driven-side clutch discs, wherein the power transmitting apparatus comprises interlocking members (e.g., a first member and second member) interlocking with the motion of the weight members from their radially inward positions to radially outward positions and movable toward a direction approaching to the pressure member; and elastic members interposed between the interlocking members and the pressure member and able to move the pressure member toward a direction for press-contacting the driving-side clutch discs and the driven-side clutch discs by urging the pressure member according to the movement of the interlocking members and also able to absorb the urging force of the pressure member applied to interlocking members when the actuating member is operated.

Abstract: A vehicle power transmission system includes: a transmission; a shift actuator; a clutch; a clutch actuator for mutually switching between the transmission and the shutting off of a driving force at the clutch; and a control device being configured to, when having detected that the vehicle is in the travelling state and that the clutch actuator is abnormal by use of the travelling state detection sensor and the CA abnormality detection sensor, control the operation of the shift actuator and cause the selected gear stage in the transmission to be shifted into neutral before the vehicle comes to a stop while shifting the selected gear stage in the transmission into a gear stage having a lower gear ratio.

Abstract: A method for manufacturing an integrated member and an integrated member manufactured by the method which can improve the joining strength and reduce the manufacturing cost. A method for manufacturing an integrated member by welding a first member formed of aluminum alloy material and a second member formed of ferrous-based material characterized in that the first member contains a predetermined amount of silicon and has a thickness larger than that of the second member. The second member can be pressed against the first member along the thickness direction, and by electrically energizing the pressed-in portion during the pressing period, electric resistance welding can be used. The pressing-in amount is set to a value larger than the thickness of the second member and less than that of the first member. The overlapping margin of the first and second members is set to a value of 0.5 mm or more.

Abstract: A saddled vehicle can comprise a handlebar on tip ends of which are provided a grasping grip to be grasped by a driver and a throttle grip for an accelerator operation, a first brake device and a second brake device for performing a braking operations. The vehicle can also include a gradient detector for detecting a road gradient during travel of the vehicle, and a deceleration adjustment device for automatically adjusting the deceleration of the vehicle in accordance with the road gradient detected by the gradient detection device and operation conditions of the first brake device and the second brake device.

Abstract: A die apparatus for forming a press-formed component includes a piercing die, a piercing punch, and a support. The piercing die includes a tubular first forming portion for forming a boss portion and a second forming portion having a cutting edge and an inwardly extending portion. The second forming portion is adapted to perform pressing of a preform while cutting a portion thereof. A cutting edge which cooperates with the cutting edge of the second forming portion is formed at a distal end of the piercing punch. When forming a press-formed component, a projection end portion of a preform formed from a blank by drawing is cut and removed by the two cutting edges, and a preform boss portion is then pressed and swaged by the inwardly extending portion.

Abstract: A belt-type continuously variable transmission capable of continuously changing a speed reduction ratio of a driven pulley to a drive pulley, has a speed reduction ratio regulation mechanism that regulates a minimum speed reduction ratio of the driven pulley to the drive pulley. The driven pulley includes a fixed sheave, a movable sheave displaceable in an axial direction with respect to the fixed sheave, and a coil spring that urges the movable sheave toward the fixed sheave. The speed reduction ratio regulation mechanism has a swing arm that adjusts an allowable range in which moving away in an axial direction of the movable sheave with respect to the fixed sheave is possible, and a regulation drive section that drives the swing distal end portion of the swing arm to swing continuously.

Abstract: A saddle-type vehicle can be configured to perform idle-stop during deceleration corresponding to a driver's demand. In some embodiments, the vehicle comprises a bar handle mounted on its opposite tip ends with a grasping grip grasped by the driver and a throttle grip for accelerator operation; two operation controls for performing braking operation, at least one of which being a first brake and a second brake mounted on tip ends of the bar handle; and an engine controller for automatically stopping an engine and making the engine an idle-stop state. In some cases, the saddle-type vehicle further comprises a judgment controller for judging whether a simultaneous operation of the first and second brakes has been achieved; and the engine controller performs the idle-stop during deceleration of the vehicle when the judgment controller judges that the simultaneous operation of the first and second brakes has been performed.

Abstract: A multiple disc clutch apparatus configured to reduce the drag torque, the sticking torque, and simultaneously the weight of the multiple disc clutch apparatus. The apparatus can comprise substantially annular multiple clutch discs connected to an input-side from an engine; substantially annular multiple clutch plates alternately laminated with the clutch discs and connected to an output-side to a wheel; and frictional members secured on surfaces of the clutch discs opposing the clutch plates and adapted to press-contact with or separate from the clutch plates. A power from the engine can be transmitted to the wheel when the clutch discs and plates are press-contacted with each other; the power transmission being blocked by releasing the press-contacting force; wherein depressions are formed on each clutch plate along its periphery and radially inward therefrom; and wherein a part of the one or more frictional members is positioned within a region of the depressions.

Abstract: A continuously variable transmission includes a cardioid intermediate transmission body having a cardioid curved surface, an outer cycloid transmission body having an outer cycloid curved surface, an inner cycloid transmission body having an inner cycloid curved surface, an outer press unit, an inner press unit, and a cardioid intermediate transmission body inclining unit. The outer press unit presses one of the outer cycloid transmission body and the cardioid intermediate transmission body to the other side. The inner press unit presses the one to the other side. The cardioid intermediate transmission body inclining unit changes respective positions where the cardioid curved surface rolls on and contacts the outer cycloid curved surface and the inner cycloid curved surface.

Abstract: In some embodiments, a torque damper apparatus can achieve reduced stiffness as well as sufficient vibration absorbing property while increasing the dampening ratio of the torque variation. In some embodiments, a torque damper apparatus comprises an input member to which an engine torque is inputted; damper springs able to absorb variation of torque inputted from the input member; and/or a driving power of the engine configured to be transmitted to an output shaft of a vehicle via the input member and the damper springs. The damper springs can comprise a plurality of coil springs arranged along the circumference of the input member. The torque damper apparatus can further comprise a plurality of separate members interposed between the damper springs and configured to be independently rotated with respect to each other when the engine torque is transmitted thereto.

Abstract: A power transmitting apparatus can be configured to restart an engine when the acceleration pedal is actuated in an assist-start engine speed range and can improve responsiveness of engine restart. Such a power transmitting apparatus of a vehicle can provided with a clutch for selectively transmitting or cutting off a driving power of an engine to wheels. The power transmitting apparatus can comprise an assist-controller configured to increase an engine rotational speed above an self-start rotational speed by actuating the clutch when the vehicle is decelerated and fuel supply to the engine is stopped, in response to operation of an acceleration pedal of the vehicle, when the engine rotational speed is in an assist-start range which is an engine rotational speed range lower than the self-start rotational speed and higher than a starter-start rotational speed in which the engine cannot be started by a starter.

Abstract: A centrifugal clutch apparatus can include a driving-side rotational member rotatable around a shaft member connected to a driving device; clutch devices mounted on the driving-side rotational member and movable radially-outward of the driving-side rotational member. A driven-side rotational member rotatable independent from the driving-side rotational member can be arranged for covering the driving-side rotational member and can have an inner circumferential surface to engage with the clutch devices. Friction members can be adapted to be abutted against the inner circumferential surface so as to transmit the driving power of the driving device to the driven-side rotational member. The inner circumferential surface of the driven-side rotational member can be formed with a groove and a tensioning member formed as a ring-shaped member can be snap-fitted into the groove and held therein under a radially-outward biasing force.

Abstract: A power transmitting apparatus comprising a clutch housing, an input member connected to an engine and mounted thereon, driving-side clutch discs, a clutch member connected to an output member, driven-side clutch discs arranged between the driving-side clutch discs, a pressure member for press-contacting the driving-side clutch discs and the driven-side clutch discs together and for releasing the press-contacting force on them, and a starter, such as a kick-starter, able to apply a rotational force to the output member to start the engine, the power transmitting apparatus adapted to transmit or cut off driving power of the engine inputted to the input member to or from the output member. The power transmitting apparatus can comprise a press-contact assisting cam of an inverse-driving side for increasing the press-contacting force on the driving-side clutch discs and the driven-side clutch discs when rotational force is applied to the output member by the kick starter.

Abstract: A vehicle power transmission system includes a clutch having a friction plate, a clutch plate, and a pressure plate for elastically pressing the friction plate or the clutch plate by a pressure elastic body, a clutch actuator that applies a clutch OFF pressing force to the pressure plate, and a control device. When causing the clutch to shift to a clutch ON state, the control device controls operation of the clutch actuator to make the clutch OFF pressing force less than an elastic force of the pressure elastic body and apply an anti-assist force to the pressure plate.

Abstract: An exhaust gas purifying apparatus which can reduce or prevent the shifting of a honeycomb catalyst member relative to a cushion member, even if hard vibrations are applied to the exhaust gas purifying apparatus, for example, during operation of a vehicle. In some embodiments, there can be no increase of the radial pressure of the cushion member applied to the honeycomb catalyst member. In some embodiments, an exhaust gas purifying apparatus can comprise a honeycomb catalyst member carrying metallic catalyst, wherein the member can be contained in a cylindrical container via a cushion member. The catalyst structural member can be formed of a sheet-like catalyst structure and can be manufactured by a wet paper-making method. The structural member can be secured to the cushion member by press-fitting the structural member into the cushion member.