Three position selector for automated chuck
First Claim
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1. A chuck assembly for a rotatable spindle, comprising:
- a cylindrical body having a forward section, a collar and a rearward section, the forward section having a center hole formed therethrough, the collar having a plurality of angularly disposed guide channels, and the rearward section being mountable to the spindle;
a plurality of jaws members slidably disposed in the guide channels, each jaw member having a threaded surface formed on an outer side thereof;
a nut disposed about the collar of the body in threaded engagement with the threaded surfaces of the jaw members;
an impactor ring selectably engageable with the nut for adjusting position of the jaw members; and
a mode selection mechanism operable to engage the impactor ring with the nut, the mode selection mechanism having at least two selectable positions in which the impactor ring engages the nut, where one of the two selectable positions enables an operation associated with loosening the chuck assembly which is disabled during tightening of the chuck assembly.
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Abstract
A automated chuck is provided with at least three user selectable operating modes, thereby enabling different functions to be performed during tightening and loosening of the chuck. In one exemplary implementation, the different user selectable operating modes of the chuck may be used to actuate a motor direction switch of the drill.
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Citations
16 Claims
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1. A chuck assembly for a rotatable spindle, comprising:
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a cylindrical body having a forward section, a collar and a rearward section, the forward section having a center hole formed therethrough, the collar having a plurality of angularly disposed guide channels, and the rearward section being mountable to the spindle;
a plurality of jaws members slidably disposed in the guide channels, each jaw member having a threaded surface formed on an outer side thereof;
a nut disposed about the collar of the body in threaded engagement with the threaded surfaces of the jaw members;
an impactor ring selectably engageable with the nut for adjusting position of the jaw members; and
a mode selection mechanism operable to engage the impactor ring with the nut, the mode selection mechanism having at least two selectable positions in which the impactor ring engages the nut, where one of the two selectable positions enables an operation associated with loosening the chuck assembly which is disabled during tightening of the chuck assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A chuck assembly for a rotatable spindle, comprising:
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a cylindrical body having a forward section, a collar and a rearward section, the forward section having a center hole formed therethrough, the collar having a plurality of angularly disposed guide channels, and the rearward section being mountable to the spindle;
a plurality of jaw members slidably disposed in the guide channels, each jaw member having a threaded surface formed on an outer side thereof;
a nut disposed about the collar of the body in threaded engagement with the threaded surfaces of the jaw members;
a rotatable forward sleeve encasing a forward portion of the chuck assembly;
a rearward sleeve encasing a rearward portion of the chuck assembly;
an impactor ring disposed in the rearward sleeve and selectably engageable with the nut for adjusting position of the jaw members; and
a spring biasing the impactor ring into engagement with the forward sleeve, the forward sleeve being rotatable amongst at least three positions, wherein each position enables an operation which is not available in the other two positions. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification