REAMER HOLDING DEVICE FOR MACHINING VALVE SEATS

WIPO Patent Application WO/1982/003350

A1

A reamer device for machining the valve seat surfaces of the cylinder heads of an internal combustion engine. It is necessary for the reamer device of this type to feed a blade holder and its driving system axially without unreasonable force during machining. This reamer device employs supporting pins instead of the ball bearings used to support the blade holder during machining in the conventional blade holder, thereby eliminating the unreasonable force applied to the blade holder and its driving system. The axial core of the blade holder (a) is not coincident with that of the spindle(s) during machining. Therefore, the blade holder is coupled via a universal joint (j) to the spindle, and the blade holder can alter its machining angle. A plurality of supporting pins (2) are provided to control the movements of the blade holder during machining and are radially positioned using compressed air and hydraulic oil.

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HIDROYASU MINORU (JP)
YAMASHITA HIDEO (JP)
OGURO TAMOTSU (JP)
YAMAGISHI SHIGERU (JP)
SHINO SHIGENARI (JP)

PCT/JP1982/000107

October 14, 1982

April 07, 1982

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HONDA MOTOR CO LTD (JP)
HIDROYASU MINORU (JP)
YAMASHITA HIDEO (JP)
OGURO TAMOTSU (JP)
YAMAGISHI SHIGERU (JP)
SHINO SHIGENARI (JP)

B23B19/02; B23B31/02; B23C3/05; B23D75/00; F16C23/00; (IPC1-7): B23D75/00; B23B31/30

JPS53157483U	1978-12-09
JP18010311Y1
GB951978A	1964-03-11
JPS265143B1
JP9004988Y1

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