Ratcheting tool driver
View Patent ↗A ratcheting tool driver has a handle and a ratcheting body that includes a plurality of recesses for receiving a plurality of pawls having teeth formed thereon. A cover is axially secured to the ratcheting body and rotates relative to the body over a limited distance. The cover is formed so that it interacts with the plurality of pawls, which are operatively received in the body recesses so that they engage and disengage teeth formed on a socket ring. The socket ring contains a plurality of teeth on its outer circumference, is received in an axial bore formed in the ratcheting body, and operatively engages the pawl teeth.
1. A ratcheting tool driver, said ratcheting tool driver comprising:
a. a hand-actuatable body comprising
a first axial bore having a central longitudinal axis,
an end face transverse to said first axial bore, and
a first chamber recessed from and opening into said end face and said first axial bore, said first chamber extending longitudinally transverse to said central longitudinal axis on opposite sides of said first axial bore;
b. a socket ring disposed in, and rotatable about the axis of, said first axial bore, said socket ring defining teeth about an outer circumference thereof and defining a second axial bore that receives a tool shank in rotational driving engagement therein; and
c. a second chamber recessed from and opening into said end face and said first axial bore, said second chamber being located on an opposite side of said first axial bore from said first chamber, said second chamber extending longitudinally transverse to said central longitudinal axis on opposite sides of said first axial bore, and
d. a first pawl having a first end defining at least one pawl tooth and an opposite second end, wherein said first pawl is disposed in said first chamber so that said first pawl first end is received on one side of said first axial bore and said first pawl second end is received on an opposite side of said first axial bore, wherein said first pawl is slidable transversely to said first axial bore between
a first pawl first position in which said at least one first pawl tooth engages said socket ring teeth so that said first pawl blocks relative rotation between said body and said socket ring in a first rotational direction, and
2 first pawl second position in which said at least one first pawl tooth is disengaged from said socket ring teeth,
e. a second pawl having a first end defining at least one pawl tooth and an opposite second end, wherein said second pawl is disposed in said second chamber so that said second pawl first end is received on one side of said first axial bore and said second pawl second end is received on an opposite side of said first axial bore, wherein said second pawl is slidable transversely to said first axial bore between
a second pawl first position in which said at least one second pawl tooth engages said socket ring teeth so that said second pawl blocks relative rotation between said body and said socket ring in a second rotational direction opposite said first rotational direction, and
a second pawl second position in which said at least one second pawl tooth is disengaged from said socket ring teeth, wherein said first pawl is biased toward said first pawl first position wherein said second pawl is biased toward said second pawl first position.
2. The tool driver as in claim 1 , wherein said first chamber and said second chamber are elongated and parallel to each other.
3. The tool driver as in claim 1 , wherein said first chamber and said second chamber are elongated and disposed at the same acute angle with respect to a plane between said first chamber and said second chamber that includes the central axis of said axial bore.
4. The tool driver as in claim 3 , wherein said acute angle is above zero degrees and less than or equal to ten degrees.
5. The tool driver as in claim 4 , wherein said acute angle is five degrees.
6. The tool driver as in claim 1 , further comprising a cam attached to and selectively movable with respect to said body into engagement with said first pawl to move said first pawl to said first pawl second position and out of engagement with said first pawl to move said first pawl to said first pawl first position.
7. The tool driver as in claim 6 ,
wherein said cam is a hand-actuable annular cover defining a cam surface on an inner circumference thereof, and
wherein said cover is disposed on said body so that said cover is rotatable about said body between a first cam position in which said cam surface engages said first pawl so that said first pawl is in said first pawl second position, and a second cam position in which said cam surface disengages said first pawl so that said first pawl is in said first pawl first position.
8. The tool driver as in claim 6 , further comprising a detent defined between said cam and said body and retaining said cam respectively in said first cam position and said second cam position.
9. The tool driver as in claim 1 , further comprising a cam attached to and selectively movable with respect to said body into
a first cam position in which said cam engages said first pawl so that said first pawl is in said first pawl second position and releases said second pawl into said second pawl first position,
a second cam position in which said cam engages said second pawl so that said second pawl is in said second pawl second position and releases said first pawl into said first pawl first position, and
a third cam position in which said cam releases each of said first pawl and said second pawl to said first pawl first position and said second pawl first position so that said first pawl and said second pawl block relative rotation between said body and said socket ring in said first and said second rotational directions.
10. The tool driver as in claim 9 , further comprising a detent defined between said cam and said body, wherein said detent retains said cam respectively in said first cam position, said second cam position and said third cam position.
11. A ratcheting tool driver, said ratcheting tool driver comprising:
a. a hand-actuatable body comprising
a first axial bore having a central longitudinal axis,
an end face transverse to said first axial bore, and
a first chamber recessed from and opening into said end face and said first axial bore, said first chamber extending longitudinally transverse to said central longitudinal axis on opposite sides of said first axial bore,
a second chamber recessed from and opening into said end face and said first axial bore, said second chamber being located on an opposite side of said first axial bore from said first chamber, said second chamber extending longitudinally transverse to said central longitudinal axis on opposite sides of said first axial bore;
b. a socket ring disposed in, and rotatable about the axis of, said first axial bore, said socket ring defining teeth about an outer circumference thereof and defining a second axial bore that receives a tool shank in rotationally driving engagement therein;
c. a first pawl having a first end defining a plurality of teeth and an opposite second end, wherein said first pawl is disposed in said first chamber so that said first pawl first end is received on one side of said first axial bore and said first pawl second end is received on an opposite side of said first axial bore, wherein said first pawl is slidable between a first pawl first position in which said first pawl teeth engage said socket ring teeth so that said first pawl blocks relative rotation between said body and said socket ring in a first rotational direction, and a first pawl second position in which said first pawl teeth are disengaged from said socket ring teeth; and
d. a second pawl having a first end defining a plurality of teeth and an opposite second end, wherein said second pawl is disposed in said second chamber so that said second pawl first end is received on one side of said first axial bore and said second pawl second end is received on an opposite side of said first axial bore, wherein said second pawl is slidable between a second pawl first position in which said second pawl teeth engage said socket ring teeth so that said second pawl blocks relative rotation between said body and said socket ring in a second rotational direction opposite said first rotational direction, and a second pawl second position in which said second pawl teeth are disengaged from said socket ring teeth.
12. The tool driver as in claim 11 , further comprising:
a. a first spring disposed between a wall of said first recessed chamber and said first pawl so that said first spring biases said first pawl toward said first pawl first position; and
b. a second spring disposed between a wall of said second recessed chamber and said second pawl so that said second spring biases said second pawl toward said second pawl first position.
13. The tool driver as in claim 12 , further comprising a cam coupled to and selectively movable with respect to said body between
a first cam position in which said cam engages said first pawl so that said first pawl is in said first pawl second position and releases said second pawl into said second pawl first position,
a second cam position in which said cam engages said second pawl so that said second pawl is in said second pawl second position and releases said first pawl into said first pawl first position, and
a third cam position in which said cam releases each of said first pawl and said second pawl so that respective pawls move to said first pawl first position and said second pawl first position so that said first pawl and said second pawl block relative rotation between said body and said socket ring in said first and said second rotational directions.
14. The tool driver as in claim 13 , further comprising a detent defined between said cam and said body and retaining said cam respectively in said first cam position, said second cam position and said third cam position.
15. The tool driver as in claim 14 , wherein said cam is a hand-actuable annular cover defining a cam surface on an inner circumference thereof, and wherein said cover is disposed on said body so that said cover is rotatable about said body between said first cam position, said second cam position and said third cam position.
16. The tool driver as in claim 15 , wherein said detent comprises:
a. a first blind bore formed in said end face parallel to said first axial bore;
b. a plurality of blind bores formed in a bottom surface of said annular cover; and
c. a spring and a ball disposed in said first blind bore so that said spring biases said ball out of said first blind bore and into engagement with one of said plurality of blind bores.
17. A ratcheting tool driver, said ratcheting tool driver comprising:
a. a hand-actuatable body comprising
a first axial bore having a central longitudinal axis,
an end face transverse to said first axial bore, and
a first chamber recessed from and opening into said end face and said first axial bore, said first chamber extending longitudinally transverse to said central longitudinal axis on opposite sides of said first axial bore;
b. a handle axially and rotatably fixed to said body;
c. a socket ring disposed in, and rotatable about the axis of, said first axial bore, said socket ring defining teeth about an outer circumference thereof and defining a second axial bore that receives a tool shank in rotationally driving engagement therein;
d. a first pawl having a first end defining at least one pawl tooth and an opposite second end, wherein said first pawl is disposed in said first chamber so that said first pawl first end is received on one side of said first axial bore and said first pawl second end is received on an opposite side of said first axial bore, wherein said first pawl is slidable transversely to said first axial bore between a first pawl first position in which said at least one first pawl tooth engages said socket ring teeth so that said first pawl blocks relative rotation between said body and said socket ring in a first rotational direction, and a first pawl second position in which said at least one first pawl tooth is disengaged from said socket ring teeth, wherein said first pawl is biased toward said first pawl first position;
e. a second chamber recessed from and opening into said end face and said first axial bore, said second chamber being located on an opposite side of said first axial bore from said first chamber, said second chamber extending longitudinally transverse to said central longitudinal axis on opposite sides of said first axial bore, and
f. a second pawl having a first end defining at least one pawl tooth and an opposite second end, wherein said second pawl is disposed in said second chamber so that said second pawl first end is received on one side of said first axial bore and said second pawl second end is received on an opposite side of said first axial bore, wherein said first pawl is slidable transversely to said first axial bore between a second pawl first position in which said at least one second pawl tooth engages said socket ring teeth so that said second pawl blocks relative rotation between said body and said socket ring in a second rotational direction opposite said first rotational direction, and a second pawl second position in which said at least one second pawl tooth is disengaged from said socket ring teeth, wherein said second pawl is biased toward said second pawl first position.
18. The tool driver as in claim 17 , further comprising:
a. a first spring disposed between a wall of said first recessed chamber and said first pawl so that said first spring biases said first pawl toward said first pawl first position; and
b. a second spring disposed between a wall of said second recessed chamber and said second pawl so that said second spring biases said second pawl toward said second pawl first position.
19. The tool driver as in claim 18 , further comprising a cam coupled to and selectively movable with respect to said body into
a first cam position in which said cam engages said first pawl so that said first pawl is in said first pawl second position and releases said second pawl into said second pawl first position, and
a second cam position in which said cam engages said second pawl so that said second pawl is in said second pawl second position and releases said first pawl into said first pawl first position.
20. The tool driver as in claim 19 , wherein said cam is a hand-actuable annular cover defining a cam surface on an inner circumference thereof, and wherein said cover is disposed on said body so that said cover is rotatable about said body between said first cam position and said second cam position.
21. The tool driver as in claim 20 , further comprising a detent defined between said cam and said body and retaining said cam respectively in said first cam position and said second cam position.
22. The tool driver as in claim 21 , wherein said detent comprises:
a. a first blind bore formed in said end face parallel to said first axial bore;
b. a plurality of blind bores formed in a bottom surface of said annular cover; and
c. a spring and a ball disposed in said first blind bore so that said spring biased said ball out of said first blind bore, wherein said ball engages one of said plurality of blind bores.
23. A ratcheting tool driver, said ratcheting tool driver comprising:
a. a hand-actuatable body comprising an end face;
b. a socket ring disposed in, and rotatable about an axis of, said hand actuable body, said socket ring defining teeth about an outer circumference thereof and defining an axial bore that receives a tool shank in rotational driving engagement therein;
c. a first chamber recessed from and opening into said end face, said first chamber extending longitudinally transverse to hand actuable body axis on opposite sides of said axial bore;
d. a second chamber recessed from and opening into said end face, said second chamber being positioned on an opposite side of said socket ring from said first chamber, said second chamber extending longitudinally transverse to hand actuable body axis on opposite sides of said axial bore,
e. a first pawl having a first end defining at least one pawl tooth and an opposite second end, wherein said first pawl is disposed in said first chamber so that said first pawl first end is received on one side of said axial bore and said first pawl second end is received on an opposite side of said axial bore, wherein said first pawl is slidable between
a first pawl first position in which said at least one first pawl tooth engages said socket ring teeth so that said first pawl blocks relative rotation between said body and said socket ring in a first rotational direction, and
a first pawl second position in which said at least one first pawl tooth is disengaged from said socket ring teeth, and
f. a second pawl having a first end defining at least one pawl tooth and an opposite second end, wherein said second pawl is disposed in said second chamber so that said second pawl first end is received on one side of said axial bore and said second pawl second end is received on an opposite side of said axial bore, wherein said pawl is slidable between
a second pawl first position in which said at least one second pawl tooth engages said socket ring teeth so that said second pawl blocks relative rotation between said body and said socket ring in a second rotational direction opposite said first rotational direction, and
a second pawl second position in which said at least one second pawl tooth is disengaged from said socket ring teeth,
wherein said first pawl is biased toward said first pawl first position wherein said second pawl is biased toward said second pawl first position.
24. The tool driver as in claim 23 , wherein said first chamber and said second chamber are elongated and parallel to each other.
25. The tool driver as in claim 23 , wherein said first chamber and said second chamber are elongated and disposed at the same acute angle with respect to a plane between said first chamber and said second chamber that includes the central axis of said axial bore.
26. The tool driver as in claim 25 , wherein said acute angle is above zero degrees and less than or equal to ten degrees.
27. The tool driver as in claim 26 , wherein said acute angle is five degrees.
28. The tool driver as in claim 23 , further comprising a cam attached to and selectively movable with respect to said body into engagement with said first pawl to move said first pawl to said first pawl second position and out of engagement with said first pawl to move said first pawl to said first pawl first position.
29. The tool driver as in claim 28 ,
wherein said cam is a hand-actuable annular cover defining a cam surface on an inner circumference thereof, and
wherein said cover is disposed on said body so that said cover is rotatable about said body between a first cam position in which said cam surface engages said first pawl so that said first pawl is in said first pawl second position, and a second cam position in which said cam surface disengages said first pawl so that said first pawl is in said first pawl first position.
30. The tool driver as in claim 28 , further comprising a detent defined between said cam and said body and retaining said cam respectively in said first cam position and said second cam position.
31. The tool driver as in claim 23 , further comprising a cam attached to and selectively movable with respect to said body between
a first cam position in which said cam engages said first pawl so that said first pawl is in said first pawl second position and releases said second pawl into said second pawl first position,
a second cam position in which said cam engages said second pawl so that said second pawl is in said second pawl second position and releases said first pawl into said first pawl first position, and
a third cam position in which said cam releases each of said first pawl and said second pawl to said first pawl first position and said second pawl first position so that said first pawl and said second pawl block relative rotation between said body and said socket ring in said first and said second rotational directions.
32. The tool driver as in claim 31 , further comprising a detent defined between said cam and said body, wherein said detent retains said cam respectively in said first cam position, said second cam position and said third cam position.