Title:
自動車用自動変速機のクラッチドラム
Document Type and Number:
Japanese Patent JP4123705
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a clutch drum which has a smaller number of part items while maintaining optimization in thickness and weight of each part. SOLUTION: A drum body 4 comprises a bottom wall 2 having a smaller diameter cylindrical part 8 and a main cylindrical part 3 in which a spline 11 is formed in the inner peripheral surface thereof to become a clutch disc accommodation part, and a circumferential groove 6 for snap ring used as a coming out stopper for the clutch disc is formed around the inner periphery of the open end part of the main cylindrical part 3. An auxiliary cylindrical part 5 to which an internal gear for power transmission is connected and a rim part 7 which is located externally of the circumferential groove 6 to reinforce the same portion are formed as one body together with the drum body 4 by a rotational wall drawback spinning forming procedures using one piece of sheet metal blank.
Inventors:
Naoto Taguchi
Morita Tsukasa
Morita Tsukasa
Application Number:
JP2000326369A
Publication Date:
July 23, 2008
Filing Date:
October 26, 2000
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F16D13/60; B21D22/16; B21D53/26; B21D53/88; B21H5/00
Domestic Patent References:
| JP10299791A | ||||
| JP11735A | ||||
| JP10281175A | ||||
| JP9287622A | ||||
| JP8100845A | ||||
| JP1058074A | ||||
| JP538248Y2 | ||||
| JP2000145899A |
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Hiromichi Kobayashi
Tomioka Kiyoshi
Hiromichi Kobayashi
Tomioka Kiyoshi