Quick-Change Connecting Rod Assembly
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United States of America Patent
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Issued Date -
Oct 5, 2017
app pub date -
Apr 4, 2016
filing date -
Apr 4, 2016
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Abstract
A quick-change connecting rod assembly includes a connecting rod having a front end with a coupling hole. Two diametrically opposed coupling grooves are defined in a polygonal inner periphery of the coupling hole. The connecting rod further includes first and second radial holes respectively receiving first and second positioning balls. A first abutment ring is mounted around the connecting rod and is located between the first and second radial holes. A pressing seat is received in a rear portion of the coupling hole and includes a receptacle receiving a magnet and a pressing portion for pressing against the second positioning ball. A sleeve receives the front end of the connecting rod and includes an inclined face for pressing against the first positioning ball. A rear abutment ring is fixed in the receiving hole and includes a side stop wall for pressing against the second positioning ball.
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