Citizen Watch Company, Ltd.

Takeshi Okabe

Toshikazu Hatsuse

Sosaku Kimura

Kunihiro Kokubo

Masaya Itoh

Masahiko Watanabe

Soosaku Kimura

A power feeder ( ) includes a flexible strip ( ) having a conducting front side ( ) and an insulating back side ( ); a retainer unit ( ) for holding the strip wrapped on a bar ( ) with the back side being in close contact with the bar; a feeder unit ( ) connected electrically with the front side of the strip; and a base ( ) mounted detachably on the headstock ( ) of an automatic lathe. A tool-positioning device ( ) including this power feeder includes a driving unit ( ) for bringing a tool ( ) to be positioned into contact with the front side of the strip; a section ( ) for detecting a conduction between the tool and the front side of the strip through the feeder unit to determine the position of contact with the tool; and a corrective processing section ( ) for determining the position of a center axis ( ) of the bar based on the position of the determined position of contact with the tool.

Tool-positioning method, tool-positioning device and power feeder for tool positioning

A supporting member is vertically slidably mounted on a grinding head body which is vertically slidably mounted on a cross rail of a grinding machine. A jaw is provided on the supporting member at an end thereof. A grinding-wheel spindle assembly includes a center shaft one end of which is secured to the grinding head body and the other end is supported between the jaw and an end of the supporting member, and a sleeve rotatably mounted on the center shaft. A grinding wheel is secured to the sleeve. In order to permit replacement of the grinding wheel, the jaw is opened and the supporting member is retracted from an operating position where the center shaft is supported by the jaw to a retracted position apart from the center shaft.

Grinding head for a grinding machine

A table mechanism comprising two hydrostatically coupled tables, a main table and an auxiliary table, in which after clamping the main table, the gaps in the hydrostatically coupling portions of the tables are adjusted so as to position the auxiliary table precisely.

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Hino, Japan

Takeshi Okabe