Title:
BLADE FOR FLUID TRANSMISSION DEVICE AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JP3008674
Kind Code:
B2
Abstract:
PURPOSE: To manufacture the blade of a fluid transmission device at a low cost without occurrence of any trouble to assembly.
CONSTITUTION: The tip part of the claw part 12 of a blade 10 is processed and hardened by a press work (at a coning process). This process causes compression of the tip part of the claw part, and the thickness of the processed part is decreased to a value lower than that of a part on which coning processing is not applied. Thereafter, the end part of the processed part of the claw part is pressed and cut so as to be formed in a given shape (at a press cutting process). Since the cut part is processed and hardened, burrs are difficult to produce during a press cutting process. A process (a burr squeezing process) wherein burrs 16 produced during the press cutting process are pressed is carried out. This method corrects protrusion of burrs and facilitates a work to mount a blade on a shell 18. Since, in assembly, burrs are pressed in a shell groove in a state that the burrs are formed integrally with the blade, the burrs are prevented from being mixed in fluid in a fluid transmission device.
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Inventors:
Tetsuo Fukuoka
Naoto Taguchi
Masayuki Suzuki
Makoto Umezawa
Naoto Taguchi
Masayuki Suzuki
Makoto Umezawa
Application Number:
JP17015592A
Publication Date:
February 14, 2000
Filing Date:
June 04, 1992
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
B21D53/00; F16H41/28; (IPC1-7): F16H41/28; B21D53/00
Domestic Patent References:
| JP1171715A | ||||
| JP63203219A | ||||
| JP6228031A | ||||
| JP58106657U |
Attorney, Agent or Firm:
Masaki Goto (1 person outside)