Title:
METHOD OF SECURING SINTERED PART BY SECURING ENGAGEMENT
Document Type and Number:
Japanese Patent JPS614809
Kind Code:
A
Abstract:
PURPOSE:To temporarily secure a shaft member, inserted into a through-hole, by means of the deforming stress of a projection and to improve productivity of engaging securing, by a method wherein a projection is provided on the inner peripheral surface of a through-hole in a sintered part under a preliminarily- sintered condition, and an escape hole is formed behind the projection. CONSTITUTION:A through-hole 2 with a given radius D is formed around the center of a base circle in a sintered part, in which metallic powder is sintered, such as a cam 1, and a projection 3, protruded toward the inner periphery side, is formed on the spot, where a thickness wall in a radial direction is thickermost, of the inner periphery of the through-hole 2. Further, an escape hole 4 is provided in a cam 1 in a position where the projection 3 is nipped between the through-hole 2 and the escape hole. With a shaft 5 pressed in the through-hole 2, the projection 3 forms a press-in margin C proportioning a projecting distance of the projection, and since the escape hole 4 is formed behind the projection 3, the projection 3 is resiliently deformed and simultaneously deforms the escape hole 4. This enables the cam 1 and the shaft 5 to be temporarily secured by means of the deforming stress of the projection 3.
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Inventors:
TAKEMOTO YOSHIHIDE
TANAKA KEIZOU
NOMURA TADASHI
TANAKA KEIZOU
NOMURA TADASHI
Application Number:
JP12495584A
Publication Date:
January 10, 1986
Filing Date:
June 18, 1984
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD
International Classes:
F01L1/04; F16H53/02; (IPC1-7): F01L1/04
Attorney, Agent or Firm:
Watanabe
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