US20080271906A1
Active / In Force
US
⏱️ 1.7 years remaining
Drill/driver
Assignee: Black and Decker Inc
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Filing: 2008-07-07
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Granted: —
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Expires: 2028-07-07
Abstract
Abstract A drill/driver ( 2 ) includes first ( 32 ) and second ( 52 ) drive shaft. The two drive shafts ( 32, 52 ) are independently rotatable about respective axes (A-A, B-B) thereby to selectably choose the radial and axial position of the final output drive of the drill/driver. A shaft lock ( 56 ) is provided to enable the user to selectively lock either or both of the shafts ( 32, 52 ) against rotation about their respective axes.
Inventors
- 👤 Andrew Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:45
CPC Classifications
B; B25; B25F; B25F5/00; B25F5/001; B25B; B25B21/00; B25B21/002; B25F5/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
1 A power tool comprising: a motor ( 6 ); a motor output shaft ( 14 ) rotated by said motor; a first offset output gear ( 30 ) operably connected to said motor output shaft, wherein the first offset output gear is radially offset from a first central output axis (A-A); the first offset output gear itself defining a second axis (B-B), which second axis is offset from, parallel to and rotatable about the first central output axis (A-A); and a second offset output gear ( 52 ) operably connected to said motor output shaft, wherein the second offset output gear is radially offset from the second axis (B-B) defined by the first output gear ( 30 ) and wherein the second offset output gear ( 52 ) is freely rotatable about the second axis (B-B).
Claim 2
Dependent Claim
137 words
1 A power tool comprising: a motor ( 6 ); a motor output shaft ( 14 ) rotated by said motor; a first offset output gear ( 30 ) operably connected to said motor output shaft, wherein the first offset output gear is radially offset from a first central output axis (A-A); the first offset output gear itself defining a second axis (B-B), which second axis is offset from, parallel to and rotatable about the first central output axis (A-A); and a second offset output gear ( 52 ) operably connected to said motor output shaft, wherein the second offset output gear is radially offset from the second axis (B-B) defined by the first output gear ( 30 ) and wherein the second offset output gear ( 52 ) is freely rotatable about the second axis (B-B).
Claim 3
Dependent Claim
73 words
2 . The power tool according to claim 1 wherein the first and second offset output gears ( 30 , 52 ) are rotatably adjustable about the first central output axis (A-A) and the second axis respectively, thereby to permit the second offset output gear to be selectably co-axial with the first central output axis, wherein the second offset output gear drives a final output shaft ( 50 ) of the power tool.
Claim 4
Dependent Claim
44 words
3 . The power tool according to claim 1 wherein the first offset output gear ( 30 ) drives a first offset drive shaft ( 32 ), the first offset drive shaft being parallel to, but axially offset from the first central output axis.
Claim 5
Dependent Claim
45 words
4 . The power tool according to claim 3 wherein the first offset drive shaft ( 32 ) carries, at its end remote from the first offset output gear, a pinion ( 42 ), which pinion engages the second offset output gear ( 52 ).
Claim 6
Dependent Claim
41 words
7 . The power tool according to claim 1 wherein a case ( 4 ) is manually rotatable by a user to rotate the position of the first offset output gear ( 30 ) about the first central output axis (A-A).
Claim 7
Dependent Claim
40 words
8 . The power took according to claim 7 wherein an outer casing ( 54 ) is manually rotatable by said user to rotate the position of the second offset output gear ( 52 ) about the second axis (B-B).
Claim 8
Dependent Claim
42 words
9 . The power tool according to claim 1 , further comprising: a first actuator to allow a user to selectively rotate said first offset output gear; and a second actuator to allow said user to selectively rotate second offset output gear.
References Cited (Backward Citations)
US2742796A
Cited
US5540629A
Cited
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