Title:
OPERATING DEVICE
Document Type and Number:
Japanese Patent JPS51145992
Kind Code:
A
Abstract:
A drill is provided on which the chuck and motor are mounted on a support which moves vertically. Thus the motor rises and falls with the movement of the drill. Also the vertical movement of the drill chuck is controlled by an air cylinder which has mounted axially above it an hydraulic checking cylinder arranged so that checking occurs after an initial unchecked downward movement of the chuck. Automatic and manual operation are controlled by a five port valve in which a piston changing the air direction flow is moved by air blasts directed to each end of the channel in which the piston moves.
Inventors:
KERUTO TORUBEN SHIYUNAIDAA SOR
Application Number:
JP2402376A
Publication Date:
December 15, 1976
Filing Date:
March 05, 1976
Export Citation:
Assignee:
SORENSEN ENG LTD K & V
International Classes:
B23B47/06; B23B39/00; B23B47/16; B23B47/22; B23Q5/26; (IPC1-7): B23B47/22