JPS60185002U

JPS60185002U - engine hollow camshaft

Info

Publication number: JPS60185002U
Application number: JP7208284U
Authority: JP
Inventors: 淳杉本; 佐々木　憲夫
Original assignee: トヨタ自動車株式会社
Priority date: 1984-05-17
Filing date: 1984-05-17
Publication date: 1985-12-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、エンジンの一部透視図、第２図は、従来のエ
ンジンの中空カムシャフトの縦断面図、第３図は、第２
図のカムシャフトの■−■断面図、第４図は、本考案の
一実施例に係るエンジンの中空カムシャフトの縦断面図
、第５図は、第４図のカムシャフトの■−■断面図であ
る。１・・・カムシャフト（エンジンの中空カムシャフト）
、２・・・カム、３・・・ジャーナル、４・・・シャフ
ト、５・・・貫通Ｌ　６・・・ノーズ、７・・・ノーズ
の表面、８・・・硬化層。Fig. 1 is a partial perspective view of the engine, Fig. 2 is a vertical sectional view of a hollow camshaft of a conventional engine, and Fig. 3 is a partial perspective view of the engine.
4 is a vertical sectional view of a hollow camshaft of an engine according to an embodiment of the present invention, and FIG. 5 is a sectional view taken along ■--■ of the camshaft shown in FIG. It is a diagram. 1...Camshaft (hollow camshaft of the engine)
, 2... Cam, 3... Journal, 4... Shaft, 5... Penetration L 6... Nose, 7... Surface of nose, 8... Hardened layer.

Claims

[Scope of utility model registration request]

A camshaft in which a cam, a journal, and a shaft are integrally molded, the entire camshaft is made of cast iron, a through hole extending in the longitudinal direction is bored in the shaft, and a nose of the cam is formed. A hollow camshaft for an engine, characterized in that a hardened layer made by the TIG remelting method is formed on the surface of the hollow camshaft.