发明名称 |
Molding and emblem removal tool |
摘要 |
A pneumatic scraping tool includes a pneumatic hammer assembly including a cylinder in which a piston reciprocates for repeated impact against an anvil or blade holder which is rotatably received within an end of the cylinder and carries a scraping blade. The anvil has an annular flange which stops its insertion in the cylinder, and is retained in place by a nut threadedly engaged with the cylinder and having an end wall spaced from the cylinder end a distance slightly greater than the flange thickness to permit reciprocation of the anvil. Exhaust air passes along a groove in the outer surface of the cylinder to an annular chamber in the nut and thence through four exhaust ports exiting at the end wall of the nut. A plug portion of the anvil projects through a central opening in the nut end wall and is received into a socket in a blade housing. Blade fingers project laterally into the socket. Alternating side grooves and flats on the plug portion allow the blade assembly to be rotated roughly one-quarter turn between a latched condition and a release condition in which the plug portion can be inserted into and removed from the socket. A spring-biased detent ball in the cylinder engages a square inner end of the anvil to form a ratchet, accommodating rotation of the anvil in only one direction.
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申请公布号 |
US5930899(A) |
申请公布日期 |
1999.08.03 |
申请号 |
US19970884899 |
申请日期 |
1997.06.30 |
申请人 |
SNAP-ON TOOLS COMPANY |
发明人 |
HARTMAN, ROBERT L.;KOESSL, ROGER A. |
分类号 |
B25D9/06;(IPC1-7):B25D17/00 |
主分类号 |
B25D9/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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