Rotary impact mechanism

Details Rotary impact mechanism Rotary impact mechanism

1975-09-22

1977-01-11

Leppink, James A.

Tool driving or impacting

Impacting devices

With anvil arranged to transmit torsional impact to tool

B25D 1500

Patent

active

040022129

ABSTRACT:
A rotary impact mechanism comprising a rotatable anvil, a rotatably driven hammer, an impact dog rotatably supported by the hammer and a rotatable control spindle which is lockable against rotation relative to the anvil. When locked against rotation the control spindle is arranged to engage the impact dog for shifting the latter from a free-running position to an impact position in which it instantaneously interconnects the hammer and the anvil, thereby providing for a kinetic energy transfer from the hammer to the anvil. A lock dog which is arranged to lock the control spindle against rotation relative to the anvil is arranged to be engaged by a release cam for unlocking the control spindle every second revolution of the hammer.

REFERENCES:
patent: 3606931 (1971-09-01), Karden
patent: 3648784 (1972-03-01), Schoeps
patent: 3661217 (1972-05-01), Maurer
patent: 3789934 (1974-02-01), Schoeps et al.

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