US 2003/0189299 A1 · Chuck with quick change

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.

Claims23

Dependent claims

A chuck for use with a manual or powered driver having a rotatable drive shaft and an elongated tool shaft having a polygonal cross section and defining a circumferential groove, said chuck comprising:

a. 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;
b. a grip mounted in said body in communication with said axial bore;
and
c. a first detent located in said grip and extending radially into said bore, said first detent being releasable in a radially outward direction relative to said grip;
wherein, upon movement of said grip to a predetermined position, the tool shaft may be inserted so that said grip engages the polygonal surfaces of the tool to rotationally retain the tool, and wherein said detent releasably engages the groove formed in the tool shank.

2 more elements

a. 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;
b. a generally cylindrical sleeve disposed rotatably about said body;
c. a grip mounted in said body in communication with said axial bore;
d. a nut disposed about said body in axially driving engagement with said grip and rotatable 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 grip;
and
e. a first detent extending radially into said bore, said first detent being releasable in a radially outward direction;
wherein, upon movement of said grip to a first position, insertion of the 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 said grip rotationally retains the tool shaft by engaging the polygonal sides of the tool shaft.

4 more elements

A chuck for use with a manual or powered driver having a rotatable drive shaft, said chuck comprising:

a. 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;
b. a generally cylindrical sleeve disposed rotatably about said body;
c. 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;
d. 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;
e. a first detent extending radially into said bore, said first detent being releasable in a radially outward direction relative to said jaws;
f. an elongated tool shaft having a polygonal cross section and defining a circumferential groove;
g. a spring disposed operatively between said body and said jaws so that said spring biases said jaws axially forward in said passageways;
h. a second detent operatively disposed between said jaws and said body;
and
i. 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.

Facts

Application

10/403,928Filed 31 Mar 2003

Priority

12 May 2000

Published

9 Oct 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification21 codes

B25B 23/0035
Connections or joints between tool parts: connection means between socket or screwdriver bit and tool
B23B 31/1071
Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls: retention by balls
B23B 31/1238
Moving obliquely to the axis of the chuck in a plane containing this axis: jaws movement actuated by a nut with conical screw-thread
B23B 31/1253
Moving obliquely to the axis of the chuck in a plane containing this axis: jaws movement actuated by an axially movable member

Family

Application60/203,713Us provisional application · filed 12 May 2000

Application09/852,936Continuation · filed 10 May 2001

Application10/403,928Continuation · filed 31 Mar 2003

US 2002/0063401 A1Published application

US 6,688,610 B2Related patent

US 7,040,630 B2Related patent

US 2003/0189299 A1This patent

From the US filing history. Foreign family members aren’t listed.

Abstract

Claims23

Dependent claims

a. 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;
b. a grip mounted in said body in communication with said axial bore;
and
c. a first detent located in said grip and extending radially into said bore, said first detent being releasable in a radially outward direction relative to said grip;
wherein, upon movement of said grip to a predetermined position, the tool shaft may be inserted so that said grip engages the polygonal surfaces of the tool to rotationally retain the tool, and wherein said detent releasably engages the groove formed in the tool shank.

2 more elements

a. 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;
b. a generally cylindrical sleeve disposed rotatably about said body;
c. a grip mounted in said body in communication with said axial bore;
d. a nut disposed about said body in axially driving engagement with said grip and rotatable 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 grip;
and
e. a first detent extending radially into said bore, said first detent being releasable in a radially outward direction;
wherein, upon movement of said grip to a first position, insertion of the 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 said grip rotationally retains the tool shaft by engaging the polygonal sides of the tool shaft.

4 more elements

A chuck for use with a manual or powered driver having a rotatable drive shaft, said chuck comprising:

a. 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;
b. a generally cylindrical sleeve disposed rotatably about said body;
c. 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;
d. 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;
e. a first detent extending radially into said bore, said first detent being releasable in a radially outward direction relative to said jaws;
f. an elongated tool shaft having a polygonal cross section and defining a circumferential groove;
g. a spring disposed operatively between said body and said jaws so that said spring biases said jaws axially forward in said passageways;
h. a second detent operatively disposed between said jaws and said body;
and
i. 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.

Chuck with quick change

Life of this patent

Abstract

Claims23

Chuck with quick change

Life of this patent

Abstract

Claims23