Hammer tool

Details Hammer tool Hammer tool

1983-09-15

1986-09-02

Schran, Donald R.

Tool driving or impacting

Impacting devices

With means for rotating tool

173163, 173109, 173119, 173123, B25D 1110

Patent

active

046090533

ABSTRACT:
A hammer tool with a drive motor (16) and a hammer mechanism (35), the hammer mechanism including a drive piston (38) reciprocably movable in a cylinder (34) for driving a hammer piston (39) towards a working tool (13) releasably coupled to the front end of the hammer tool. The hammer tool comprises a changeable motor section (11) containing the drive motor (16) with a motor shaft (19) connected to a first part of a coupling device (50) and a hammer section (12) containing the hammer mechanism (35). The hammer mechanism comprises bevel gears (46, 47) for transmitting drive force from an input drive shaft (45) to the drive piston (38). The input drive shaft is connected to a second part of the coupling device (50) in which a flywheel (48) is incorporated. The parts of the coupling device and the flywheel are adapted to each other for providing a power transmission from the drive motor shaft (19) to the input drive shaft ( 45) of the hammer mechanism when the two sections (11, 12) are connected, thus enabling easy changing of the drive motor.

REFERENCES:
patent: 1215056 (1917-02-01), Pauli
patent: 2126829 (1938-08-01), Snodgrass
patent: 3924691 (1975-12-01), Brannstrom et al.
patent: 3939921 (1976-02-01), Brannstrom
patent: 3968843 (1976-07-01), Shotwell
patent: 4095654 (1978-06-01), Ross
patent: 4272224 (1981-06-01), Kabele
patent: 4350123 (1982-09-01), Kossek et al.

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