Claims
- 1. A chuck for use with a power driver having a rotatable spindle, said chuck comprising:
a generally cylindrical body defining a tail section configured to rotate with said spindle of said power driver and a nose section having an axial bore formed therein; a plurality of jaws in communication with said axial bore; a driving disk axially movably disposed about said body in driving engagement with said jaws so that axial movement of said driving disk with respect to said body moves said jaws toward or away from the axis of said axial bore, depending on the direction of said axial movement, said driving disk defining a threaded outer circumferential surface; and a generally cylindrical sleeve rotatably mounted about said body and defining a threaded inner circumferential surface engaging said threaded outer surface of said driving disk so that relative rotation between said driving disk and said sleeve moves said driving disk axially with respect to said body, wherein said driving disk defines a plurality of cylindrical slots extending at least partially radially therethrough and wherein each said cylindrical slot defines a circular edge and a gap in said circular edge, and wherein each said jaw extends through said gap in a respective said slot and includes a portion thereof that is shaped cooperatively with respect to said cylindrical slot and that is received thereby so that said jaw is axially fixed, and radially slidable, with respect to said driving disk, said portion defining a generally semicircular outer circumference so that a space is defined between said portion and a section of said slot edge opposite said gap.
- 2. The chuck as in claim 1, wherein said tail section defines an axial bore therein configured to mate with said drive shaft of said power driver.
- 3. The chuck as in claim 1, wherein said nose section defines a plurality of angularly disposed passageways intersecting said axial bore.
- 4. The chuck as in claim 1, including a radially extending thrust ring axially fixed to said body and engaging said sleeve so that said sleeve transfers rearward axial force to said body through said thrust ring.
- 5. The chuck as in claim 4, wherein said thrust ring is unitarily formed with said body.
- 6. The chuck as in claim 4, including a bearing disposed between said thrust ring and said sleeve.
- 7. A chuck for use with a power driver having a rotatable spindle, said chuck comprising:
a generally cylindrical body defining a tail section having an axial bore formed therein configured to mate with said drive shaft of said power driver, a nose section having an axial bore formed therein, and a plurality of angularly disposed passageways in said nose section and intersecting said nose section axial bore; a plurality of jaws slidably received in respective said passageways; a driving disk axially movably disposed about said body in driving engagement with said jaws so that axial movement of said driving disk with respect to said body moves said jaws toward or away from the axis of said axial bore, depending on the direction of said axial movement, said driving disk defining a threaded outer circumferential surface; and a generally cylindrical sleeve rotatably mounted about said body and defining a threaded inner circumferential surface engaging said threaded outer surface of said driving disk so that relative rotation between said driving disk and said sleeve moves said driving disk axially with respect to said body, wherein said driving disk defines a plurality of cylindrical slots extending at least partially radially therethrough and wherein each said cylindrical slot defines a circular edge and a gap in said circular edge, and wherein each said jaw extends through said gap in a respective said slot and includes a portion thereof that is shaped cooperatively with respect to said cylindrical slot and that is received thereby so that said jaw is axially and rotationally fixed, and radially slidable, with respect to said driving disk, said portion defining a generally semicircular outer circumference so that a space is defined between said portion and a section of said slot edge opposite said gap.
- 8. The chuck as in claim 7, including a thrust ring axially fixed to said body forward of said driving disk and engaging said sleeve so that said sleeve transfers rearward axial force to said body through said thrust ring.
- 9. The chuck as in claim 8, wherein said thrust ring is unitarily formed with said body.
- 10. The chuck as in claim 8, including a bearing disposed between said thrust ring and said sleeve.
- 11. A chuck for use with a power driver having a rotatable spindle, said chuck comprising:
a generally cylindrical body defining a tail section configured to rotate with said drive shaft of said power driver, a nose section having an axial bore formed therein, and a plurality of angularly disposed passageways in said nose section and intersecting said nose section axial bore; a plurality of jaws respectively disposed in said passageways; a driving disk axially movably disposed about said body in driving engagement with said jaws so that axial movement of said driving disk with respect to said body moves said jaws toward or away from the axis of said axial bore, depending on the direction of said axial movement, said driving disk defining a threaded outer circumferential surface; a generally cylindrical sleeve rotatably mounted about said body and engaging said jaws so that said jaws move axially forward with said driving disk, said driving disk defining a threaded inner circumferential surface engaging said threaded outer surface of said driving disk so that relative rotation between said driving disk and said sleeve moves said driving disk axially with respect to said body; and a guide ring axially fixed to said body and defining a generally frustoconical section extending axially rearward from said passageways generally parallel to and abutting said jaws.
- 12. The chuck as in claim 11, wherein said guide ring includes an annular section disposed about said body and wherein said frustoconical section is defined by a plurality of elongated prongs extending axially rearward from said annular section.
- 13. The chuck as in claim 11, including a radially extending thrust ring axially fixed to said body and engaging said sleeve so that said sleeve transfers rearward axial force to said body through said thrust ring.
- 14. The chuck as in claim 13, including a bearing disposed between said thrust ring and said sleeve.
- 15. The chuck as in claim 11, including a radially inward biased retainer engaging said jaws axially rearward of said guide ring.
- 16. The chuck as in claim 15, wherein said retainer includes a garter spring disposed about a radially outward surface of said jaws.
- 17. The chuck as in claim 16, wherein each said jaw includes a slot extending radially inward from an outer surface of said jaws and wherein said garter spring is received within said slot.
- 18. The chuck as in claim 15, wherein said retainer includes an annular ring radially offset from said jaws and a plurality of radially inward biased arms engaging respective said jaws.
- 19. A chuck for use with a power driver having a rotatable spindle, said chuck comprising:
a generally cylindrical body defining a tail section having an axial bore formed therein configured to mate with said drive shaft of said power driver, a nose section having an axial bore formed therein, and a plurality of angularly disposed passageways in said nose section and intersecting said nose section axial bore; a plurality of jaws slidably received in respective said passageways; a driving disk axially movably disposed about said body in driving engagement with said jaws so that axial movement of said driving disk with respect to said body moves said jaws toward or away from the axis of said axial bore, depending on the direction of said axial movement, said driving disk defining a threaded outer circumferential surface; a generally cylindrical sleeve rotatably mounted about said body and defining a threaded inner circumferential surface engaging said threaded outer surface of said driving disk so that relative rotation between said driving disk and said sleeve moves said driving disk axially with respect to said body; and a radially inward biased retainer engaging said jaws axially rearward of said passageways.
- 20. The chuck as in claim 19, wherein said retainer is disposed axially rearward of said driving disk.
- 21. The chuck as in claim 19, wherein said retainer includes a garter spring disposed about a radially outward surface of said jaws.
- 22. The chuck as in claim 21, wherein each said jaw includes a slot extending radially inward from an outer surface of said jaw and wherein said garter spring is received within said slot.
- 23. The chuck as in claim 22, wherein said spring is disposed axially rearward of said driving disk.
- 24. The chuck as in claim 19, wherein said retainer includes an annular ring radially offset from said jaws and a plurality of radially inward biased arms engaging respective said jaws.
- 25. The chuck as in claim 24, wherein each said jaw includes a slot extending radially inward from an outer surface of said jaw and wherein a distal end of a said arm is received within said slot.
- 26. The chuck as in claim 24, wherein each said jaw includes an axially rearward facing shoulder abutting an axially forward face of said driving disk and wherein said annular ring is disposed axially rearward of said driving disk.
- 27. A chuck for use with a power driver having a rotatable spindle, said chuck comprising:
a generally cylindrical body defining a tail section configured to rotate with said spindle of said power driver and a nose section having an axial bore formed therein; a plurality of jaws in communication with said axial bore; a driving disk axially movably disposed about said body in driving engagement with said jaws so that axial movement of said driving disk with respect to said body moves said jaws toward or away from the axis of said axial bore, depending on the direction of said axial movement, said driving disk defining a threaded outer circumferential surface; a generally cylindrical sleeve rotatably mounted about said body and defining a threaded inner circumferential surface engaging said threaded outer surface of said driving disk so that relative rotation between said driving disk and said sleeve moves said driving disk axially with respect to said body; a bearing disposed between said sleeve and said nose section of said body so that rearward axial force is transferred from said sleeve to said body through said bearing, wherein said driving disk defines a plurality of cylindrical slots extending at least part partially radially therethrough and wherein each said cylindrical slot defines a circular edge and a gap in said circular edge, and wherein each said jaw extends through said gap in a respective said slot and includes a portion thereof that is shaped cooperatively with respect to said cylindrical slot and that is received thereby so that said jaw is axially fixed, and radially slidable, with respect to said driving disk, said portion defining a generally semicircular outer circumference so that a space is defined between said portion and a section of said slot edge opposite said gap.
- 28. The chuck as in claim 27, including a thrust ring axially fixed to said body forward of said driving disk and wherein said bearing is disposed between said sleeve and said thrust ring.
- 29. The chuck as in claim 28, wherein said thrust ring is unitarily formed with said body.
- 30. The chuck as in claim 27, wherein said driving disk defines a plurality of cylindrical slots extending at least partially radially therethrough, and
wherein each said jaw includes a portion thereof that is shaped cooperatively with respect to said cylindrical slot and that is received thereby so that said jaw is axially fixed, and radially slidable, with respect to said driving disk.
- 31. The chuck as in claim 27, wherein said nose section defines a plurality of angularly disposed passageways intersecting said axial bore.
- 32. A chuck for use with a power driver having a rotatable spindle, said chuck comprising:
a generally cylindrical body defining a tail section configured to rotate with said spindle of said power driver and a nose section having an axial bore formed therein, wherein said nose section defines a plurality of angularly disposed passageways intersecting said axial bore; a plurality of jaws in communication with said axial bore; a driving disk axially movably disposed about said body in driving engagement with said jaws so that axial movement of said driving disk with respect to said body moves said jaws toward or away from the axis of said axial bore, depending on the direction of said axial movement, said driving disk defining a threaded outer circumferential surface; a generally cylindrical sleeve rotatably mounted about said body and defining a threaded inner circumferential surface engaging said threaded outer surface of said driving disk so that relative rotation between said driving disk and said sleeve moves said driving disk axially with respect to said body; a bearing disposed between said sleeve and said nose section of said body so that rearward axial force is transferred from said sleeve to said body through said bearing; and a guide ring axially fixed to said body and defining a generally frustoconical section extending axially rearward from said passageways generally parallel to and abutting said jaws.
- 33. The chuck as in claim 32, wherein said guide ring includes an annular section disposed about said body and wherein said frustoconical section is defined by a plurality of elongated prongs extending axially rearward from said annular section.
- 34. A chuck for use with a power driver having a rotatable spindle, said chuck comprising:
a generally cylindrical body defining a tail section configured to rotate with said spindle of said power driver and a nose section having an axial bore formed therein, wherein said nose section defines a plurality of angularly disposed passageways intersecting said axial bore; a plurality of jaws in communication with said axial bore; a driving disk axially movably disposed about said body in driving engagement with said jaws so that axial movement of said driving disk with respect to said body moves said jaws toward or away from the axis of said axial bore, depending on the direction of said axial movement, said driving disk defining a threaded outer circumferential surface; a generally cylindrical sleeve rotatably mounted about said body and defining a threaded inner circumferential surface engaging said threaded outer surface of said driving disk so that relative rotation between said driving disk and said sleeve moves said driving disk axially with respect to said body; a bearing disposed between said sleeve and said nose section of said body so that rearward axial force is transferred from said sleeve to said body through said bearing; and a radially inward biased retainer engaging said jaws axially rearward of said passageways.
- 35. The chuck as in claim 34, wherein said retainer is disposed axially rearward of said driving disk.
- 36. The chuck as in claim 34, wherein said retainer includes a garter spring disposed about a radially outward surface of said jaws.
- 37. The chuck as in claim 36, wherein said spring is disposed axially rearward of said driving disk.
- 38. The chuck as in claim 34, wherein said retainer includes an annular ring radially offset from said jaws and a plurality of radially inward biased arms engaging respective said jaws.
- 39. A chuck for use with a power driver having a rotatable spindle, said chuck comprising:
a generally cylindrical body defining a tail section configured to rotate with said spindle of said power driver and a nose section having an axial bore formed therein; a plurality of jaws in communication with said axial bore; a driving disk axially movably disposed about said body in driving engagement with said jaws so that axial movement of said driving disk with respect to said body moves said jaws toward or away from the axis of said axial bore, depending on the direction of said axial movement, said driving disk defining a threaded outer circumferential surface; and a generally cylindrical sleeve rotatably mounted about said body and defining a threaded inner circumferential surface engaging said threaded outer surface of said driving disk so that relative rotation between said driving disk and said sleeve moves said driving disk axially with respect to said body, wherein said outer circumferential surface of said driving disk defines a discrete thread extending at most 360° about said circumferential surface.
- 40. The chuck as in claim 39, wherein said thread extends less than 360° about said outer circumferential surface of said driving disk so that said thread defines a gap between a rotationally forward edge of said thread and a rotationally rearward edge of said thread.
- 41. The chuck as in claim 39, including a first stop disposed at a rearward portion of said sleeve so that said stop blocks rearward movement of said driving disk beyond said stop.
- 42. The chuck as in claim 40, including a first stop disposed at a rearward portion of said threaded inner circumferential surface of said sleeve so that said stop blocks rearward movement of said driving disk, at said rearward edge of said thread, beyond said stop.
- 43. The chuck as in claim 42, wherein said first stop has a width less than the width of said gap.
- 44. The chuck as in claim 39, including a stop disposed at a forward portion of sleeve so that said stop blocks forward movement of said driving disk forward of said stop.
- 45. The chuck as in claim 42, including a second stop disposed at a forward portion of said threaded inner circumferential surface of said sleeve so that said stop blocks forward movement of said driving disk, at said forward edge of said thread, beyond said second stop.
- 46. The chuck as in claim 40, wherein said nose section defines a plurality of angularly disposed passageways intersecting said axial bore and wherein a respective said jaw is received in each said passageway.
- 47. The chuck as in claim 46,
wherein said thread extends less than 360° about said outer circumferential surface of said driving disk so that said thread defines a gap between a rotationally forward edge of said thread and a rotationally rearward edge of said thread, and including a first stop having a width less than said gap and disposed at a rearward portion of said threaded inner circumferential surface of said sleeve so that said stop blocks rearward movement of said driving disk, at said rearward edge of said thread, beyond said stop.
- 48. The chuck as in claim 47, including a second stop disposed at a forward portion of said threaded inner circumferential surface of said sleeve so that said stop blocks forward movement of said driving disk, at said forward edge of said thread, beyond said second stop.
- 49. The chuck as in claim 39, including a bearing disposed between said sleeve and said body so that rearward axial force is transferred from said sleeve to said body through said bearing.
- 50. The chuck as in claim 49, wherein said bearing includes a first race, a second race and a plurality of bearing elements disposed between said first race and said second race, one of said first race and said second race defining a plurality of recesses that respectively receive said bearing elements so that relative rotation between said first race and said second race drives said bearing elements to successive said recesses.
- 51. The chuck as in claim 49, wherein said bearing includes a first race, a second race and a plurality of bearing elements disposed between said first race and said second race, wherein one of said first race and said second race defines a plurality of recesses, and wherein the other of said first race and said second race includes at least one deflectable tab that extends from said second race into a said recess so that relative rotation between said first race and said second race drives said tab to successive said recesses.
- 52. A chuck for use with a power driver having a rotatable spindle, said chuck comprising:
a generally cylindrical body defining a tail section having an axial bore formed therein configured to mate with said drive shaft of said power driver, a nose section having an axial bore formed therein, and a plurality of angularly disposed passageways in said nose section and intersecting said nose section axial bore; a plurality of jaws in communication with said axial bore; a radially extending thrust ring axially fixed to said body forward of said jaws; a driving disk axially movably disposed about said body in driving engagement with said jaws so that axial movement of said driving disk with respect to said body moves said jaws toward or away from the axis of said axial bore, depending on the direction of said axial movement, said driving disk defining a thread that extends less than 360° about an outer circumferential surface of said driving disk so that said thread defines a gap between a rotationally forward edge of said thread and a rotationally rearward edge of said thread; a generally cylindrical sleeve rotatably mounted about said body and defining a threaded inner circumferential surface engaging said threaded outer surface of said driving disk so that relative rotation between said driving disk and said sleeve moves said driving disk axially with respect to said body; a first stop having a width less than said gap and disposed at a rearward portion of said threaded inner circumferential surface of said sleeve so that said stop blocks rearward movement of said driving disk, at said rearward edge of said thread, beyond said stop; and a bearing disposed between said sleeve and said thrust ring so that axially rearward force is transferred from said sleeve to said body through said bearing, wherein said driving disk defines a plurality of cylindrical slots extending at least partially radially therethrough, and wherein each said jaw includes a portion thereof that is shaped cooperatively with respect to said cylindrical slot and that is received thereby so that said jaw is axially and rotationally fixed, and radially slidable, with respect to said driving disk.
- 53. The chuck as in claim 52, wherein said bearing includes a first race, a second race and a plurality of bearing elements disposed between said first race and said second race, one of said first race and said second race defining a plurality of recesses that respectively receive said bearing elements so that relative rotation between said first race and said second race drives said bearing elements to successive said recesses.
- 54. The chuck as in claim 52, wherein said bearing includes a first race, a second race and a plurality of bearing elements disposed between said first race and said second race, wherein one of said first race and said second race defines a plurality of recesses, and wherein the other of said first race and said second race includes at least one deflectable tab that extends from said second race into a said recess so that relative rotation between said first race and said second race drives said tab to successive said recesses.
Parent Case Info
[0001] This is a continuation of U.S. Application Ser. No. 09/507,158 filed Feb. 18, 2000, the entire disclosure of which is incorporated by reference herein and which claimed the benefit of U.S. Provisional Application No. 60/134,338, filed May 14, 1999.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60134338 |
May 1999 |
US |
Continuations (1)
|
Number |
Date |
Country |
Parent |
09507158 |
Feb 2000 |
US |
Child |
10042710 |
May 2002 |
US |