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US 6,688,610 B2Granted
Chuck with quick change
AssigneePower Tool Holders Incorporated
InventorsMark S. Huggins, Stephen W. Steadings, James L. Weinhold, William C. Buck
Life of this patent
Estimating the term…
Abstract
A chuck includes a generally cylindrical body and a plurality of jaws reciprocally disposed in the body in communication with a central bore in the body. A first detent extends radially into the central bore and is releasable in a radially outward direction. Upon insertion of an elongated tool shaft having a polygonal cross section into the bore so that a groove in the tool shaft is aligned with the first detent, the first detent engages the groove and axially retains the tool shaft. Upon movement of the jaws so that the jaw faces engage flat sides of the tool shaft, the jaws rotationally retain the tool shaft.
Claims33
A chuck for use with a manual or powered driver having a rotatable drive shaft, said chuck comprising:
- a generally cylindrical body having a nose section and a tail section, said tail section being rotatable with said drive shaft of said driver and said nose section having a central bore formed therein;
- a plurality of jaws reciprocally disposed in said body in communication with said central bore, each of said jaws having a jaw face formed on one side thereof;
- a first detent extending radially into said bore, said first detent being releasable in a radially outward direction;
- and
- an elongated tool shaft having a polygonal cross section and defining a circumferential groove,
- wherein, upon insertion of said tool shaft into said bore so that said groove is aligned with said first detent, said first detent engages said groove and axially retains said tool shaft, and
- wherein, upon movement of said jaws so that said jaw faces engage flat sides of said tool shaft, said jaws rotationally retain said tool shaft.
4 more elements
A chuck for use with a manual or powered driver having a rotatable drive shaft, said chuck comprising:
- a generally cylindrical body having a nose section and a tail section, said tail section being rotatable with said drive shaft of said driver and said nose section having a central bore formed therein and a plurality of angularly disposed passageways formed therethrough and intersecting said axial bore;
- a generally cylindrical sleeve disposed rotatably about said body;
- a plurality of jaws slidably positioned in each of said angularly disposed passageways, each of said jaws having a jaw face formed on one side thereof;
- a nut disposed about said body in axially driving engagement with said jaws and rotatably with respect to one of said sleeve and said body so that relative rotation between said nut and said one of said sleeve and said body axially drives said jaws in said passageways;
- a first detent extending radially into said bore, said first detent being releasable in a radially outward direction;
- and
- an elongated tool shaft having a polygonal cross section and defining a circumferential groove,
- wherein, upon insertion of said tool shaft into said bore so that said groove is aligned with said first detent, said first detent engages said groove and axially retains said tool shaft, and
- wherein, upon movement of said jaws axially in said passageways so that said jaw faces engage flat sides of said tool shaft, said jaws rotationally retain said tool shaft.
6 more elements
A chuck for use with a manual or powered driver having a rotatable drive shaft, said chuck comprising:
- a generally cylindrical body having a nose section and a tail section, said tail section being rotatable with said drive shaft of said driver and said nose section having a central bore formed therein and a plurality of angularly disposed passageways formed therethrough and intersecting said axial bore, wherein said body defines a bore extending radially through said body from said central bore to an outer circumferential surface of said body;
- a generally cylindrical sleeve disposed rotatably about said body and axially moveable with respect to said body;
- a plurality of jaws slidably positioned in each of said angularly disposed passageways, each of said jaws having a jaw face formed on one side thereof;
- a nut disposed about said body in axially driving engagement with said jaws and rotatably with respect to one of said sleeve and said body so that relative rotation between said nut and said one of said sleeve and said body axially drives said jaws in said passageways;
- a pin disposed in said radial bore in operative communication with said sleeve and said central bore;
- and
- an elongated tool shaft having a polygonal cross section and defining a circumferential groove,
- wherein an inner circumferential surface of said sleeve defines a cam in communication with said pin so that axial movement of said sleeve to a first position drives said pin toward said central bore and axial movement of said sleeve to a second position permits movement of said pin away from said central bore,
- wherein, upon insertion of said tool shaft into said bore so that said groove is aligned with said pin and movement of said sleeve to said first position, said pin engages said groove and axially retains said tool shaft, and
- wherein, upon movement of said jaws axially in said passageways so that said jaw faces engage flat sides of said tool shaft, said jaws rotationally retain said tool shaft.
7 more elements
A chuck for use with a manual or powered driver having a rotatable drive shaft, said chuck comprising:
- a generally cylindrical body having a nose section and a tail section, said tail section being rotatable with said drive shaft of said driver and said nose section having a central bore formed therein and a plurality of angularly disposed passageways formed therethrough and intersecting said axial bore;
- a generally cylindrical sleeve disposed rotatably about said body;
- a plurality of jaws slidably positioned in each of said angularly disposed passageways, each of said jaws having a jaw face formed on one side thereof;
- a nut disposed about said body in axially driving engagement with said jaws and rotatably with respect to one of said sleeve and said body so that relative rotation between said nut and said one of said sleeve and said body axially drives said jaws in said passageways;
- a first detent extending radially into said bore, said first detent being releasable in a radially outward direction;
- an elongated tool shaft having a polygonal cross section and defining a circumferential groove;
- a spring disposed operatively between said body and said jaws so that said spring biases said jaws axially forward in said passageways;
- a second detent operatively disposed between said jaws and said body;
- and
- a catch, said second detent and said catch being disposed with respect to each other so that said second detent engages said catch when said jaws are at a predetermined position at which said jaws engage said flat sides of said tool shaft when said tool shaft is inserted into said central bore,
- wherein, upon insertion of said tool shaft into said bore so that said groove is aligned with said first detent, said first detent engages said groove and axially retains said tool shaft, and
- wherein, upon movement of said jaws axially in said passageways to said first position, said jaws rotationally retain said tool shaft.
9 more elements
Dependencies are inferred from the claim text.