TRANSMISSION MODULE FOR PNEUMATIC TOOL
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United States of America Patent
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-
N/A
Issued Date -
Jan 13, 2011
app pub date -
Jun 5, 2010
filing date -
Jul 10, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A transmission module includes a sleeve member, a cover disc, a hammering portion and an axle. The sleeve member has a rear disc and a cylinder body. A receiving space is defined between the rear disc and the cylinder body. The rear disc is formed with a teethed bore. The inner surface of the cylinder body is formed with at least one axially-stretched rib. The cover disc is disposed on the open end of the receiving space. The cover disc is formed with an axial bore. The hammering portion includes at least one rotary hammer, which is received in the receiving space. The rotary hammer has a through hole and a positioning groove. The rib is engaged with the positioning groove. The axle has a driven end and a working end. The driven end is inserted through the axial bore and mated with the through hole.
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