IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0403928
(2003-03-31)
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발명자
/ 주소 |
- Huggins,Mark S.
- Steadings,Stephen W.
- Weinhold,James L.
- Buck,William C.
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| 출원인 / 주소 |
- Jacobs Chuck Manufacturing Company
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| 대리인 / 주소 |
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| 인용정보 |
피인용 횟수 :
4 인용 특허 :
104 |
초록
▼
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
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.
대표청구항
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The invention claimed is: 1. 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 sec
The invention claimed is: 1. 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. The chuck as in claim 1, wherein said grip includes a plurality of jaws. 3. The chuck as in claim 2, wherein said body nose section includes a plurality of angularly disposed passageways formed therethrough and intersecting said axial bore, and wherein each said passageway slidably receives a separate one of said jaws. 4. The chuck as in claim 2, including a second detent operatively disposed between said jaws and said body, and including 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 said predetermined position at which said jaws engage the polygonal surfaces of the tool shaft when the tool shaft is inserted into said central bore. 5. 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 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. 6. The chuck as in claim 5, wherein said grip includes a plurality of jaws. 7. The chuck as in claim 6, wherein said body nose section includes a plurality of angularly disposed passageways formed therethrough and intersecting said axial bore, and wherein each said passageway slidably receives a separate one of said jaws. 8. The chuck as in claim 7, wherein said at least one jaw defines a bore extending radially into said jaw from said jaw face, wherein said jaw bore defines a restricted opening at said jaw face, wherein said first detent includes a ball disposed in said jaw bore and a spring disposed in said jaw bore so that said spring biases said ball toward said restricted opening, and wherein the diameter of said ball is greater than the width of said restricted opening so that said ball extends outward of said jaw face when said ball engages said restricted opening. 9. The chuck as in claim 7, wherein said first detent is defined in said body. 10. The chuck as in claim 9, wherein said body defines a bore extending radially into said body from said central bore, wherein said radial bore defines a restricted opening at said central bore, wherein said first detent includes a first ball disposed in said radial bore and a spring disposed in said radial bore so that said spring biases said first ball toward said restricted opening, and wherein the diameter of said first ball is greater than the width of said restricted opening so that said first ball extends radially into said central bore when said first ball engages said restricted opening. 11. The chuck as in claim 10, wherein said radial bore extends through said body to an outer circumference of said body, wherein said detent includes a second ball disposed in said radial bore so that said spring is disposed between said first ball and said second ball, and wherein said second ball extends radially outward of said circumferential surface and engages an inner circumferential surface of said sleeve. 12. The chuck as in claim 11, wherein said inner circumferential surface defines a cam and wherein said sleeve is axially movably disposed on said body so that movement of said sleeve moves said cam against said second ball and thereby increases or releases pressure on said first ball through said spring, depending on the direction of said movement. 13. The chuck as in claim 7, including a second detent disposed in one of said nut and said sleeve and a catch in the other of said sleeve and said nut, 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 said first position at which said jaws engage said flat sides of said tool shaft when said tool shaft is inserted into said central bore. 14. The chuck as in claim 13, wherein said catch is a depression defined in said other of said sleeve and said nut. 15. 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. 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; b. a first detent formed in at least one of said plurality of jaws and said body and extending radially into said bore, said first detent being releasable in a radial direction with respect to said at least one of said plurality of jaws and said body; and c. 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, wherein said first detent engages said groove at the same time as said jaw faces engage the flat sides of said tool shaft. 16. The chuck as in claim 15, including a driver in axial driving engagement with said jaws. 17. 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; b. 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; c. a first detent formed in at least one of said plurality of jaws and extending radially into said bore, said first detent being releasable in a radial direction with respect to said at least one of said plurality of jaws and said body; and d. 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. 18. 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; b. 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; c. a first detent formed in at least one of said plurality of jaws and said body and extending radially into said bore, said first detent being releasable in a radial direction with respect to said at least one of said plurality of jaws and said body; and d. 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, including a second detent operatively disposed between said jaws and said body, and including 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. 19. 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. 20. The chuck as in claim 19, wherein said nut includes a driving disk slidably disposed on said body and having an external screw thread, and wherein said sleeve defines an internal screw thread that meshes with said external screw thread whereby when said sleeve is rotated with respect to said body, said jaws are moved thereby. 21. The chuck as in claim 20, wherein said second detent is disposed in one of said nut and said sleeve and said catch is disposed in the other of said sleeve and said nut. 22. The chuck as in claim 20, wherein said second detent is disposed in one of said nut and said body and said catch is disposed in the other of said nut and said body. 23. The chuck as in claim 19, wherein each of said jaws define threads thereon and wherein said nut defines threads that engage said threads of said jaws so that rotation of said nut moves said jaws axially in said passageways.
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