Apparatus for driving a drilling or percussion tool
AssigneeEmerson Electric Co.
InventorsJ. P. Houben, A. J. Moolenaar
Life of this patent
Estimating the term…
Abstract
This invention relates to a device for driving a drilling or percussion tool having a spindle that rotates with respect to a housing. One end of the spindle is adapted to fasten to a tool piece and the other end is connected to an osciliating percussion body movable in the housing by means of a guideway. A drive shaft rotates the tool spindle into rotation or actuates the percussion body via a transmission that is provided with means for converting the rotary motion of the drive shaft into an oscillatory motion of a drive member. The drive member is connected to the percussion body through an elastic member having a non-linear spring characteristic.
Claims58
Apparatus for driving a percussion tool provided with a spindle held rotatably in a housing, said spindle having a first end and a second end, the first end is suitable for fastening to said tool and the second end is accessible to an oscillating percussion body movable in said housing by means of a guideway, a rotatable driving shaft actuates said percussion body by a transmission, said transmission being Provided with means for conversion of the rotary motion of the drive shaft into an oscillatory motion of an associated drive member, said drive member joining said percussion body through an associated elastic member having non-linear spring attributes, characterized in that said drive member has a plate-like member, said drive member is mounted on the drive shaft, said elastic member is operatively connected to said plate-like member and is provided with a coupling means for engaging said percussion body.
Apparatus for driving a combination drilling and percussion tool provided with a spindle held rotatably in a housing, said spindle having a first end and a second end, the first end is suitable for fastening to said tool and the second end is accessible to an oscillating percussion body movable in said housing by means of a guideway, a rotatable driving shaft actuates said percussion body by a transmission, said transmission being provided with means for conversion of the rotary motion of the drive shaft into an oscillatory motion of an associated drive member, said drive member joining said percussion body through an associated elastic member having non-linear spring attributes, characterized in that said drive member has a plate-like member, said drive member is mounted on the drive shaft, said elastic member is operatively connected to said plate-like member and is provided with a coupling means for engaging said percussion body.
Dependencies are inferred from the claim text.