Aisin Seiki Kabushiki Kaisha

Mitsui High-tec Incorporated

Haruji Suzuki

Akinori Hoshino

Shusaku Kamio

Masafumi Sakuma

Akira Nagai

Iwao Myojin

Hiroyuki Yamamoto

Noriaki Nonaka

Koichi Sakamoto

Fumiyoshi Murakami

Tsuneo Shishido

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.

Method for manufacturing laminated rotor core

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.

Motor

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

Laminated core and method for manufacturing the same

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.

Webbed spiral bevel gear

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.

Growing community of inventors

Kariya, Japan

Haruji Suzuki