Document Type and Number:
Japanese Patent JPS6343549
Kind Code:
B2
Abstract:
This invention relates to a fluid pressure operated tool of the type having an axially reciprocatable and rotatable shaft to which a work piece such as a rock drill is attachable. The tool is driven by a planetary piston type of motor with a rotary externally toothed gear member having rotational and orbital movement relative to a surrounding internally toothed gear member. The externally toothed gear member is connected to a rotatable valve member and reciprocatable and rotatable output shaft by a cardan type shaft. The output shaft has a piston part which is subject to being alternately pressurized in opposite directions to produce the reciprocating motion.
More Like This:
| JP4673118 | Hammer drill device |
| JP2003117852 | HOLDING DEVICE FOR DRILL BIT FOR GENERATING FINE VIBRATION |
| WO/2018/021433 | ELECTRIC TOOL |
Inventors:
YOHANESU UAAGUN BOOTORUPU
Application Number:
JP23646483A
Publication Date:
August 31, 1988
Filing Date:
December 16, 1983
Export Citation:
Assignee:
DANFOSS AS
International Classes:
B25D16/00; B23B45/04; B25B21/02; E21B4/02; E21B6/02; F01C1/00; F03B13/02; F03C1/00; F03C1/28; F03C1/30; F03C1/36; F03C2/00