Abstract: A power transmitting apparatus which can suppress the rotational vibrations by suppressing rotation of the pressure member relative to the clutch member is provided. The power transmitting apparatus can comprise a clutch housing rotatable together with an input member and a plurality of driving-side clutch discs mounted thereon; a clutch member with a plurality of driven-side clutch discs mounted thereon and interleaved with the driving-side clutch discs; and a pressure member axially movably relative to the clutch member to increase or release the press-contacting force acting on the driving-side clutch discs and the driven-side clutch discs. The power transmitting apparatus can further comprise one or more slide-suppressing members for applying sliding resistance to the pressure member when the pressure member is rotated relative to the clutch member.

Abstract: A power transmitting apparatus comprising a switching device for switching an urging device between an urging force applying position wherein an abutment between the other end of the urging device and the pressure member is kept to apply the urging force of urging device to the pressure member when the intermediate member is moved toward the pressure member, and an urging force cutting-off position wherein the other end of the urging device is separated from the pressure member to cut-off the urging force of urging device to the pressure member when the intermediate member is moved toward the pressure member. In some embodiments, the urging device is set at the urging force applying position while the intermediate member is stopped when the vehicle is stopped and the urging device is set at the urging force cutting-off position while the intermediate member is rotated when the vehicle is running.

Abstract: An integrated member can comprise different members each formed of materials having different mechanical characteristics. A method for manufacturing such an integrated member can comprise an electric resistance welding step in which the first member is press-fit into the second member and the press-fit portion can be electrically energized to achieve the electric resistance welding so as to integrate the first member and the second member. The method can further comprise a carburized layer forming step in which carburizing-quenching and tempering, or carbonitriding-quenching and tempering, is performed on the integrated member obtained in the electric resistance welding step to form carburized layers therein in accordance with the mechanical characteristics of the first member and the second member.

Abstract: A torque damper apparatus including a multiple disc clutch lock-up clutch, damper springs arranged for damping variation of the torque transmitted via a hub gear, an urging member connected to the hub gear a fastener, and a torque transmitting member for holding the damper springs and outputting the torque transmitted from the urging member via the damper springs. The torque transmitting member can be formed with windows receiving the fastener. The hub gear and the urging member can be fastened together by the fastener within the windows.

Abstract: A power transmission device includes an input rotary member having a pressing portion, and an output rotary member having a receiving portion to be pressed by the pressing portion. The input rotary member forces the output rotary member to rotate when resilient members disposed between the input rotary member and the output rotary member are deformed by predetermined amounts.

Abstract: A power transmitting apparatus for a hybrid vehicle can transmit the driving force of engine E to the motor M or reversely the driving force of motor M to the engine E when the vehicle is stopped while avoiding transmission of the driving force of either of them to the driving wheels D such that the vehicle remains stopped. In some embodiments, a power transmitting apparatus for a hybrid vehicle can comprise a first clutch operatively posited between an engine mounted on a vehicle to driving wheels in a power transmission system and configured to transmit or cutoff driving force of the engine to or from the driving wheels; a second clutch operatively positioned between a motor mounted on a vehicle to the driving wheels in a power transmission system and configured to transmit or cut off driving force of the motor to or from the driving wheels.

Abstract: A method for forming an undercut portion of a formed article formed by plastically deforming a plate-shaped workpiece and a method for manufacturing a formed article having an undercut portion are provided. In these methods, the undercut portion is formed by press working performed using a punch and a die. These methods make the forming work more economical and more efficient. An outer portion of a plate member 91 (plate-shaped workpiece) located outward of a portion where an inwardly inclined portion 94 (undercut portion) is to be formed is bent by an angle determined such that an undercut surface 94a which constitutes the inwardly inclined portion 94 becomes parallel to the pressing direction of a punch 110. In addition, a peripheral wall portion 93 inclined by an angle corresponding to the bending angle is formed on the outer portion.

Abstract: Provided is a wet friction plate which can realize a further reduction of drag torque while suppressing a decrease in the total area of frictional sheets. A clutch friction plate 200 is formed by providing frictional sheets 210 and oil grooves 220 on a flat annular metal core 201. On a side surface of the metal core 201 facing a clutch plate 103, a plurality of small frictional sheets 210 and oil grooves 220 are alternatingly arranged along the circumferential direction of the metal core 201. The frictional sheets 210 are disposed to form frictional-sheet groups 211 each including five frictional sheets 210 disposed successively. Outer and inner peripheral edges 213 and 214 of the frictional sheets 210 of each frictional-sheet group 211 form continuously changing arcuate contours 213a and 214a such that the distances L213 and L214 between the outer and inner peripheral edges 213 and 214 and the center of rotation O of the metal core 201 continuously change.

Abstract: A clutch device is provided which facilitates an operation of checking whether or not spring seats have been properly disposed and effectively prevents falling off or a change in attitude of the spring seats, thereby reducing the labor required for manufacture. A clutch device 100 includes a pressure plate 110 which presses friction plates 103 which are rotationally driven by a drive shaft against clutch plates 107. The pressure plate 110 includes clutch springs 112 and spring seats 113 disposed in receiving portions 111 having a concave shape. Each spring seat 113 has two plate-shaped arms 113a and 113b extending along the bottom 111a of the receiving portion 111 and has a C-like shape. Protrusions 114a and 114b project from the peripheries of the arms 113a and 113b. Recesses 111b into which the protrusions 114a and 114b fit are formed in an inner wall portion of each receiving portion 111 at a position near the bottom 111a of the receiving portion 111.

Abstract: Provided is a scissors gear device having a structure which is simplified so as to reduce its overall size and thereby expand the range of application and simplify its assembly process. A scissors gear device 100 includes a main gear 101 and a sub-gear 104. The main gear 101 has three curved-surface protrusions 102 formed at a peripheral edge of one side surface thereof. The curved-surface protrusions 102 are arranged in the circumferential direction and each have an arcuate shape. The sub-gear 104 has three sloped surfaces 105 formed at a peripheral edge of its side surface facing the main gear 101. The sloped surfaces 105 are arranged in the circumferential direction. The sloped surfaces 105 are provided at positions corresponding to the curved-surface protrusions 102 formed on the side surface of the main gear 101. Each sloped surface 105 is a flat surface which extends in the circumferential direction and slopes toward the interior of the sub-gear 104 at a predetermined angle ?.

Abstract: A catalyst can be manufactured using a method which can include preparing a first aqueous solution including zirconium, filling the pores of the porous alumina with the aqueous solution by a pore-filling method using the capillary phenomenon, forming a zirconia layer in the pores of the porous alumina, preparing a second aqueous solution including noble metals, filling the pores of the porous alumina with the second aqueous solution by a pore-filling method using the capillary phenomenon, and drying and baking the porous alumina to carry the noble metals in the pores of the porous alumina formed with a zirconia layer.

Abstract: A die 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 power transmitting apparatus with improved power transmitting efficiency and reduced lag time for shifting speeds can comprise a starting clutch mechanism configured to selectively transmit and cut off driving power of engine to wheels of a vehicle, a plurality of gear-stage clutch devices operatively positioned to transmit power between the starting clutch mechanism and the wheels, an input and an output of the plurality of gear-stage clutch devices configured at predetermined gear ratios, and a gear-stage selecting device configured to select any one of the gear-stage clutch devices in accordance with a vehicle operating condition and selectively set a gear ratio for power transmission from the engine to the wheels. The gear-stage clutch devices can comprise alternately arranged driving clutch discs and driven clutch discs, and hydraulic pistons.

Abstract: A friction clutch device includes clutch plates which are retained through meshing engagement on the inner peripheral surface of an outer case, which is rotatably driven by an engine. Each clutch plate includes a flat, annular pressing element which is pressed against a clutch friction plate for frictional contact therewith. Engagement protrusions are formed on the outer peripheral surface of the pressing element. The engagement protrusions fit into recessed engagement grooves provided on the outer case and mesh with the outer case. Proiectinq portions which project toward the inner peripheral surface of the outer case are formed on the outer peripheral surface of the pressing element.

Abstract: A power transmission device includes an input rotary member having a pressing portion, and an output rotary member having a receiving portion to be pressed by the pressing portion. The input rotary member forces the output rotary member to rotate when resilient members disposed between the input rotary member and the output rotary member are deformed by predetermined amounts.

Abstract: A bending apparatus for corrugating a sheet-like material can comprise a support member, a feed mechanism, a bending member, a hold-down member, and a driving mechanism. The support member can comprise a support surface with corrugations. The feed mechanism can be configured to feed the support member in increments of one pitch of the support member corrugations. The bending member can be configured to reciprocate between a retracted position and an actuated position mating with a corrugation on the support surface so material laying on the support surface is bent along the support member corrugation. The hold-down member can be configured to be reciprocated between a retracted position and an actuated position holding the material against the support surface. The drive mechanism can be configured to sequentially reciprocate the bending member and the hold-down member so the hold-down member presses down the material and the bending member bends the material.

Abstract: A rivet setter that can efficiently and smoothly perform, and reduce the takt time for a rivet setting operation. The rivet setter can be configured to set a rivet sequentially fed from a rivet supplying means by inserting the rivet into apertures formed at predetermined positions on workpieces. The rivet setter can have delivery paths for delivering the rivet one by one by sliding the rivet down to a settable position and can have a hanging support portion formed in the settable position in the tip end of the delivery path for supporting the head of rivet and for hanging the rivet shank downward. The rivet setter can be configured to enable the rivet to be set in the apertures of the workpieces by moving the hanging support portion substantially horizontally while keeping the rivet suspended in the hanging support portion and inserted into the apertures of the workpieces.

Abstract: A torque damper apparatus including a multiple disc clutch lock-up clutch, damper springs arranged for damping variation of the torque transmitted via a hub gear, an urging member connected to the hub gear a fastener, and a torque transmitting member for holding the damper springs and outputting the torque transmitted from the urging member via the damper springs. The torque transmitting member can be formed with windows receiving the fastener. The hub gear and the urging member can be fastened together by the fastener within the windows.

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 power transmitting apparatus for a vehicle mounted with a torque converter and an idle-stop mechanism can be configured to improve fuel economy without cancelling a fuel-cut-off during vehicle speed reduction and to reduce the manufacturing cost by eliminating an electrically-driven oil pump. A power transmitting apparatus can comprise a torque converter, a clutch mechanism, an oil pump, a continuously variable transmission, a clutch control device, an engine control device, and a flow control device. The flow control device can be configured to limit or prevent the supply of oil to the torque converter by the oil pump and to prioritize the supply of oil to the clutch mechanism and the continuously variable transmission when the vehicle speed is reduced below a predetermined value with fuel being cut off by the engine control device during vehicle speed reduction.