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 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 formed with desired corrugations. The feed mechanism can be configured to feed the support member in increments corresponding to one pitch of the corrugations formed on the support member. The bending member can be configured to be reciprocated between an actuated position mating with a corrugation on the support surface such that a sheet-like material laying on the support surface is bent along the corrugation formed on the support member and a retracted position. The hold-down member can be configured to be reciprocated between an actuated position holding the sheet-like material against the support surface and a retracted position.

Abstract: A process for producing a clutch friction plate in which a plurality of friction material segments are bonded to an annular flat face of an annular core plate so that oil channels are formed between the segments, the process including: a step of forming a plurality of strip-shaped friction materials by cutting a band-shaped friction material along its longitudinal direction; a step of aligning and holding portions, corresponding to the segments, of leading edge parts of the materials in positions above the core plate while positioning the portions in the peripheral direction and in the direction along one diameter of the core plate; a step of forming the segments by cutting off the leading edge parts of the materials positioned above the core plate along a cutting-off line that includes at least an arc line that follows the outer periphery of the core plate, and a step of pressing and bonding the segments onto the face coated with an adhesive.

Abstract: A process for producing a clutch friction plate in which a plurality of friction material segments are bonded to an annular flat face of an annular core plate so that oil channels are formed between the segments, the process including: a step of forming a plurality of strip-shaped friction materials by cutting a band-shaped friction material along its longitudinal direction; a step of aligning and holding portions, corresponding to the segments, of leading edge parts of the materials in positions above the core plate while positioning the portions in the peripheral direction and in the direction along one diameter of the core plate; a step of forming the segments by cutting off the leading edge parts of the materials positioned above the core plate along a cutting-off line that includes at least an arc line that follows the outer periphery of the core plate, and a step of pressing and bonding the segments onto the face coated with an adhesive.

Abstract: A process for producing a clutch friction plate in which a plurality of friction material segments are bonded to an annular flat face of an annular core plate so that oil channels are formed between the segments, the process including: a step of forming a plurality of strip-shaped friction materials by cutting a band-shaped friction material along its longitudinal direction; a step of aligning and holding portions, corresponding to the segments, of leading edge parts of the materials in positions above the core plate while positioning the portions in the peripheral direction and in the direction along one diameter of the core plate; a step of forming the segments by cutting off the leading edge parts of the materials positioned above the core plate along a cutting-off line that includes at least an arc line that follows the outer periphery of the core plate, and a step of pressing and bonding the segments onto the face coated with an adhesive.

Abstract: A process for producing a clutch friction plate in which a plurality of friction material segments are bonded to an annular flat face of an annular core plate so that oil channels are formed between the segments, the process including: a step of forming a plurality of strip-shaped friction materials by cutting a band-shaped friction material along its longitudinal direction; a step of aligning and holding portions, corresponding to the segments, of leading edge parts of the materials in positions above the core plate while positioning the portions in the peripheral direction and in the direction along one diameter of the core plate; a step of forming the segments by cutting off the leading edge parts of the materials positioned above the core plate along a cutting-off line that includes at least an arc line that follows the outer periphery of the core plate, and a step of pressing and bonding the segments onto the face coated with an adhesive.

Abstract: In order to manufacture a friction plate for a wet clutch including a core plate and a friction member bonded to at least one of annular flat surfaces of the core plate, each friction member including friction member segments, an oil groove being provided between adjacent friction member segments, there is adopted a method including: a step of making a plurality of cuts in at least one band-shaped friction member material in a lengthwise direction to form a plurality of friction member strips; a step of retaining the friction member strips with distances corresponding to the oil grooves being formed between adjacent friction member strips; a step of cutting off a portion of a tip end of at least one of the friction member strips which are located at opposite ends to thereby secure the oil grooves between the friction member segments on the annular flat surface; and a step of superposing friction member segment correspondence portions forming the tip ends of the plurality of friction member strips to the annul

Abstract: In order to manufacture a friction plate for a wet clutch including a core plate and a friction member bonded to at least one of annular flat surfaces of the core plate, each friction member including friction member segments, an oil groove being provided between adjacent friction member segments, there is adopted a method including: a step of making a plurality of cuts in at least one band-shaped friction member material in a lengthwise direction to form a plurality of friction member strips; a step of retaining the friction member strips with distances corresponding to the oil grooves being formed between adjacent friction member strips; a step of cutting off a portion of a tip end of at least one of the friction member strips which are located at opposite ends to thereby secure the oil grooves between the friction member segments on the annular flat surface; and a step of superposing friction member segment correspondence portions forming the tip ends of the plurality of friction member strips to the annul