Abstract: A method for manufacturing a laminated rotor core includes a punching process for punching a strip-shaped material to make a core piece, a placing process, which is performed simultaneously with the punching process of the core piece, for placing the core piece in a die so that the core piece is placed on another core piece previously punched and placed in the die and a joining process for joining the core pieces.

Abstract: A motor includes a core having a plurality of laminations, which are stacked together and an end-plate provided at an end surface of the core and supporting the core, wherein the end-plate is formed by pressing a hollow material in one direction thereof in order to plastically deform the hollow material in a plate-shape.

Abstract: A laminated core (10) and a method for manufacturing the same formed with multiple continuous segment core pieces (13) wound in a spiral form by bending connecting portions (12) mutually connecting the segment core pieces (13), the connecting portions (12) being formed in an outer peripheral area (11), while the connecting portions (12) of vertically adjacent layers being displaced in a circumferential direction with inner edges or outer edges of the segment core pieces (13) fitted, the laminated core comprising: a concave cutout (21) provided in a radial exterior of each connecting portion (12) to dispose a radially expanded portion (20) within an outer circle of the laminated core (10), the radially expanded portion (20) being formed with each connecting portion (12) expanding radially outward at the time of bending each connecting portion (12); an interior cutout (22) provided in a radial interior of each connecting portion (12) to define a bending position of each connecting portion (12); and a receptacle

Abstract: A webbed spiral bevel gear formed by cold forging includes: gear teeth formed at a peripheral surface of the gear basis to be integral therewith. Each gear tooth includes a tooth top land and a tooth bottom land both in a slanting and curved manner relative to a center axis of the gear basis. The webbed spiral bevel gear includes a web portion formed at radially outer end portions of the gear teeth to be integral therewith and closing the tooth bottom lands at the radially outer end portions of the gear teeth. The web portion is continuous with the radially outer end portions of the tooth top lands. A profile of the radially outer end portion of the tooth top land of each gear tooth has two edges extending at a slant from each other and expanding in a direction of the web portion.

Abstract: A laminated core (10) and a method for manufacturing the same formed with multiple continuous segment core pieces (13) wound in a spiral form by bending connecting portions (12) mutually connecting the segment core pieces (13), the connecting portions (12) being formed in an outer peripheral area (11), while the connecting portions (12) of vertically adjacent layers being displaced in a circumferential direction with inner edges or outer edges of the segment core pieces (13) fitted, the laminated core comprising: a concave cutout (21) provided in a radial exterior of each connecting portion (12) to dispose a radially expanded portion (20) within an outer circle of the laminated core (10), the radially expanded portion (20) being formed with each connecting portion (12) expanding radially outward at the time of bending each connecting portion (12); an interior cutout (22) provided in a radial interior of each connecting portion (12) to define a bending position of each connecting portion (12); and a receptacle

Abstract: A laminated core (10) and a method for manufacturing the same formed with multiple continuous segment core pieces (13) wound in a spiral form by bending connecting portions (12) mutually connecting the segment core pieces (13), the connecting portions (12) being formed in an outer peripheral area (11), while the connecting portions (12) of vertically adjacent layers being displaced in a circumferential direction with inner edges or outer edges of the segment core pieces (13) fitted, the laminated core comprising: a concave cutout (21) provided in a radial exterior of each connecting portion (12) to dispose a radially expanded portion (20) within an outer circle of the laminated core (10), the radially expanded portion (20) being formed with each connecting portion (12) expanding radially outward at the time of bending each connecting portion (12); an interior cutout (22) provided in a radial interior of each connecting portion (12) to define a bending position of each connecting portion (12); and a receptacle

Abstract: A laminated core (10) and a method for manufacturing the same formed with multiple continuous segment core pieces (13) wound in a spiral form by bending connecting portions (12) mutually connecting the segment core pieces (13), the connecting portions (12) being formed in an outer peripheral area (11), while the connecting portions (12) of vertically adjacent layers being displaced in a circumferential direction with inner edges or outer edges of the segment core pieces (13) fitted, the laminated core comprising: a concave cutout (21) provided in a radial exterior of each connecting portion (12) to dispose a radially expanded portion (20) within an outer circle of the laminated core (10), the radially expanded portion (20) being formed with each connecting portion (12) expanding radially outward at the time of bending each connecting portion (12); an interior cutout (22) provided in a radial interior of each connecting portion (12) to define a bending position of each connecting portion (12); and a receptacle

Abstract: A fusing structure of a motor, includes a stator and a rotor, wherein the bus ring includes a ring portion and a fusing hook, and the bobbin includes a first engagement portion for changing a direction of an end portion of the wire extending from the coil so as to supply the coil with the power and a second engagement portion guiding the end portion of the wire and formed in a different length from that of the first engagement portion in the radial direction of the motor, the end portion of the wire is held between the first engagement portion and the second engagement portion so as to incline therebetween and held between the opposing surfaces so as to establish an electrical connection with the bus ring.

Abstract: A method for manufacturing a laminated rotor core includes a punching process for punching a strip-shaped material to make a core piece, a placing process, which is performed simultaneously with the punching process of the core piece, for placing the core piece in a die so that the core piece is placed on another core piece previously punched and placed in the die and a joining process for joining the core pieces.

Abstract: A webbed spiral bevel gear formed by cold forging includes: gear teeth formed at a peripheral surface of the gear basis to be integral therewith. Each gear tooth includes a tooth top land and a tooth bottom land both in a slanting and curved manner relative to a center axis of the gear basis. The webbed spiral bevel gear includes a web portion formed at radially outer end portions of the gear teeth to be integral therewith and closing the tooth bottom lands at the radially outer end portions of the gear teeth. The web portion is continuous with the radially outer end portions of the tooth top lands. A profile of the radially outer end portion of the tooth top land of each gear tooth has two edges extending at a slant from each other and expanding in a direction of the web portion.

Abstract: An end plate for a motor is provided at an end portion of a layered core and supports the core from both axial directions. The end plate comprises a contact surface, the shape of which corresponds to the shape of a stepped portion provided at the end portion of the core in an axial direction.

Abstract: A motor includes a core having a plurality of laminations, which are stacked together and an end-plate provided at an end surface of the core and supporting the core, wherein the end-plate is formed by pressing a hollow material in one direction thereof in order to plastically deform the hollow material in a plate-shape.

Abstract: A connecting structure includes a first member including a hole which has a narrower width at an opening portion than a width at a bottom portion and a projecting portion projected toward the opening portion at the bottom portion of the hole, and a second member with a longer shape than a depth of the hole of the first member wherein the second member is inserted into the hole of the first member, the second member being plastically deformed by pushing the second member into the bottom portion of the first member with pressure.

Abstract: A connecting structure includes a first member including a hole which has narrower width at an opening portion than width at a bottom portion and a projecting portion projected toward the opening portion at the bottom portion of the hole, and a second member with a longer shape than the depth of the hole of the first member wherein the second member is inserted into the hole of the first member, the second member is plastically deformed by pushing the second member into the bottom portion of the first member with pressure.