Abstract: Disclosed is a wet friction member for use in a wet clutch or a wet brake that has improved heat conductivity and tends not to damage a mating plate which is engaged with it to improve the endurance of the mating plate. The wet friction member 1 includes base paper formed from a fiber base material and a filler and a binder for curing the base paper. The base paper contains a carbon-based material and does not contain diatomaceous earth.

Abstract: In the configuration of a supporter that at least partially includes a tubular cover portion which covers a part of a human body and which elastically expands and contracts, a load addition pattern portion that is adhered to at least a part of a half or more circumference in a circumferential direction on the front surface of the tubular cover portion and that can apply a load of a predetermined magnitude to the part of the human body when the part of the human body to which the tubular cover portion is fitted is moved is continuously formed of an elastic rubber material. Preferably, as the elastic rubber material, a silicone rubber material is used, and a part or the whole of the area of the load addition pattern portion is formed with a mesh-shaped portion and preferably a honeycomb shape.

Abstract: In the configuration of a supporter that at least partially includes a tubular cover portion which covers a part of a human body and which elastically expands and contracts, a load addition pattern portion that is adhered to at least a part of a half or more circumference in a circumferential direction on the front surface of the tubular cover portion and that can apply a load of a predetermined magnitude to the part of the human body when the part of the human body to which the tubular cover portion is fitted is moved is continuously formed of an elastic rubber material. Preferably, as the elastic rubber material, a silicone rubber material is used, and a part or the whole of the area of the load addition pattern portion is formed with a mesh-shaped portion and preferably a honeycomb shape.

Abstract: The present invention provides a starting clutch disposed between a transmission and an engine and having a wet type multi-plate clutch for transmitting a power, in which the wet type multi-plate clutch includes a plurality of friction plates housed for an axial sliding movement, a clutch drum for housing the friction plates, and a piston for urging a radial central region or therearound of the friction plate to engage the friction plates, and oil which has lubricated the wet type multi-plate clutch is temporarily trapped within the clutch drum and then is discharged.

Abstract: The present invention provides a starting clutch disposed between a transmission and an engine and having a wet type multi-plate clutch for transmitting a power, in which the wet type multi-plate clutch includes a plurality of friction plates housed for an axial sliding movement, a clutch drum for housing the friction plates, and a piston for urging a radial central region or therearound of the friction plate to engage the friction plates, and oil which has lubricated the wet type multi-plate clutch is temporarily trapped within the clutch drum and then is discharged.

Abstract: The present invention provides a starting clutch disposed between a transmission and an engine and having a wet type multi-plate clutch for transmitting a power, in which the wet type multi-plate clutch includes a plurality of friction plates housed for an axial sliding movement, a clutch drum for housing the friction plates, and a piston for urging a radial central region or therearound of the friction plate to engage the friction plates, and oil which has lubricated the wet type multi-plate clutch is temporarily trapped within the clutch drum and then is discharged.

Abstract: A lubrication controlling method for a starting clutch including a wet type multi-plate clutch disposed between a transmission and an engine of a vehicle and adapted to transmit a power, the method including always supplying lubricant oil during an operation of the wet type multi-plate clutch, continuously changing a flow amount of the lubricant oil in accordance with a condition of the wet type multi-plate clutch, and controlling the amount of the lubricant oil so that a supplied amount of the lubricant oil during an idle rotation of the wet type multi-plate clutch is greater than a supplied amount of the lubricant oil during the complete engagement of the wet type multi-plate clutch.

Abstract: The present invention provides a lubrication controlling method for a starting clutch disposed between a transmission and an engine of a vehicle and having a wet type multi-plate clutch for transmitting a power, the method comprising the steps of detecting a temperature of oil in the starting clutch by means of a first temperature sensor, and controlling a flow amount of lubricant oil of the starting clutch in accordance with the temperature of the oil detected by the first temperature sensor, regardless of a running condition of the vehicle, and wherein the controlling step is performed in such a manner that, if the temperature of the oil is below a first set value, the flow amount is minimized, and, if the temperature of the oil is above a second set value, the flow amount is maximized, and, if the temperature of the oil is between the first and second set values, the flow amount of the lubricant oil is continuously changed in accordance with the temperature of the oil.

Abstract: The present invention provides a lubrication controlling method for a starting clutch including a wet type multi-plate clutch disposed between a transmission and an engine of a vehicle and adapted to transmit a power, the method comprising the steps of always supplying lubricant oil during an operation of the wet type multi-plate clutch, continuously changing a flow amount of the lubricant oil in accordance with a condition of the wet type multi-plate clutch, and controlling the amount of the lubricant oil so that a supplying amount of the lubricant oil during an idle rotation of the wet type multi-plate clutch becomes greater than a supplying amount of the lubricant oil during the complete engagement of the wet type multi-plate clutch.

Abstract: A friction plate for a wet-type multiplate clutch provided with a core plate and friction linings fixed on opposite sides of the core plate, respectively. Each of the friction linings is formed such that at a section thereof located on a side radially inner than a radial center line thereof, the friction lining has a thickness that gradually increases from an inner circumferential portion of the section toward an outer circumferential portion of the section.

Abstract: The present invention provides a starting clutch disposed between a transmission and an engine and having a wet type multi-plate clutch for transmitting a power, in which the wet type multi-plate clutch includes a plurality of friction plates housed for an axial sliding movement, a clutch drum for housing the friction plates, and a piston for urging a radial central region or therearound of the friction plate to engage the friction plates, and oil which has lubricated the wet type multi-plate clutch is temporarily trapped within the clutch drum and then is discharged.

Abstract: The present invention provides a starting clutch disposed between a transmission and an engine and having a wet type multi-plate clutch for transmitting a power, in which the wet type multi-plate clutch includes a plurality of friction plates housed for an axial sliding movement, and a clutch drum for housing the friction plates, and oil which has lubricated the wet type multi-plate clutch is trapped within the clutch drum and then is discharged.

Abstract: The present invention provides a starting clutch disposed between an engine and a transmission, comprising a clutch drum to which a rotation driving force is inputted from the engine and which holds a plurality of outer plates for an axial sliding movement, a hub member which is disposed in an inner diameter direction of the clutch drum and which holds a plurality of inner plates arranged alternately with the plurality of the outer plates for an axial movement, and a piston disposed within the clutch drum and adapted to apply an urging force to the outer plates and the inner plates to engage these plates with each other, and wherein the hub member is fitted on an input shaft of the transmission for an axial movement and an outer end portion of the clutch drum extending toward the engine is supported by a crankshaft of the engine and an inner end portion of the clutch drum extending toward the transmission is supported by an outer periphery of the hub member.

Abstract: In a lockup clutch assembly for use in a torque converter, a friction lining attached to one of a clutch piston and a front cover of the torque converter is divided into an outer-circumference-side friction lining and an inner-circumference-side friction lining. The outer-circumference-side friction lining contains as a filler diatomaceous earth in a higher proportion than the inner-circumference-side friction lining.

Abstract: The present invention provides a wet-type multi-plate clutch subjected to slip control, wherein a first friction material including rich diatom earth at its friction surface acting during the slip control and a second friction material acting at completion of engagement and having great static coefficient of friction are stuck on the same surface of a friction plate of the wet-type multi-plate clutch and wherein the first friction material has an axial thickness greater than that of the second friction material.

Abstract: A friction plate is formed of a core plate and friction linings bonded on opposite surfaces of the friction plate, respectively. To permit cooling of each friction lining from a side of its associated surface of the core plate, the friction plate is provided, for example, with oilways or grooves arranged on the associated surface of the core plate, adhesive-free parts existing on he associated surface of the core plate, or loosely-packed portions existing in the friction lining such that lube oil is also facilitated to enter each friction lining from the side of the associated surface of the core plate.

Abstract: A friction plate for a wet type multiplate clutch has a substantially ring-shaped core plate and a friction member attached to the core plate. The friction member has a surface which includes a passage formed on a surface of the friction member, the passage extending from an inner peripheral edge of the friction member to an outer peripheral edge of the friction member, and a groove having an opened end which opens to the inner peripheral edge of the friction member and a closed end which is closed at a middle of the surface of the friction member. A width of the groove decreases towards a direction to the outer peripheral edge from the inner peripheral edge of the friction member.

Abstract: In a torque converter equipped with a lock-up clutch device, a friction member is put on either one of a front cover and a lock-up piston which are to be brought into contact. On the front cover, coupling members are welded for coupling with an engine. Owing to welding distortion, convex portions are generated on a friction face. Thus, when the friction member is put on either side of the front cover and clutch piston, if relative rotation slippage occurs therebetween, a positive pressure and a negative pressure are produced in front of and behind each convex portion, which leads to the stick/slip. This invention gives grooves 71 each exceeding the range of a welding portion 61 of the coupling member 6 which are formed on the friction face of the friction member 7, which realizes balancing in a change in pressure.

Abstract: In a wet type friction plate having a groove through which lubricating oil passes, the groove is subjected to oil repelling treatment.

Abstract: In a lockup clutch assembly for use in a torque converter, a friction lining attached to one of a clutch piston and a front cover of the torque converter is divided into an outer-circumference-side friction lining and an inner-circumference-side friction lining. The outer-circumference-side friction lining contains as a filler diatomaceous earth in a higher proportion than the inner-circumference-side friction lining.