Grass trimmer drivable by power tool
First Claim
Patent Images
1. A grass trimmer comprising:
- a housing, a fixed cutter device secured to said housing, and including at least one stationary cutter blade extended out of said housing, a movable cutter device rotatably secured to said fixed cutter device with a pivot shaft and rotatable relative to said fixed cutter device in reciprocating action, said movable cutter device including at least one cutter blade extended out of said housing, and movable relative to said at least one stationary cutter blade of said fixed cutter device for conducting cutting operations, a rotary member rotatably attached to said housing and including an eccentric member extended therefrom and engageable with said movable cutter device, to cause said movable cutter device to move relative to said fixed cutter device in reciprocating action when said rotary member is rotated relative to said housing, a drive shank secured to said rotary member and rotated in concert with said rotary member and including a free end extended out of said housing, and a power tool including an engaging end attachable to said free end of said shank, to rotate and drive said rotary member relative to said housing, and to move said eccentric member relative to said movable cutter device, and to move said movable cutter device relative to said fixed cutter device in reciprocating action.
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Abstract
A grass trimmer includes a fixed cutter device secured to a housing and having one or more stationary cutter blades extended out of the housing, a movable cutter device rotatably secured to the fixed cutter device and having one or more cutter blades movable relative to the stationary cutter blade of the fixed cutter device to conduct cutting operations by an eccentric member of a rotary member. A drive shank is secured to the rotary member, and a power tool may engage with the shank, to drive the rotary member and the eccentric member relative to the movable cutter device, and to move the movable cutter device relative to the fixed cutter device in reciprocating action.
18 Citations
12 Claims
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1. A grass trimmer comprising:
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a housing, a fixed cutter device secured to said housing, and including at least one stationary cutter blade extended out of said housing, a movable cutter device rotatably secured to said fixed cutter device with a pivot shaft and rotatable relative to said fixed cutter device in reciprocating action, said movable cutter device including at least one cutter blade extended out of said housing, and movable relative to said at least one stationary cutter blade of said fixed cutter device for conducting cutting operations, a rotary member rotatably attached to said housing and including an eccentric member extended therefrom and engageable with said movable cutter device, to cause said movable cutter device to move relative to said fixed cutter device in reciprocating action when said rotary member is rotated relative to said housing, a drive shank secured to said rotary member and rotated in concert with said rotary member and including a free end extended out of said housing, and a power tool including an engaging end attachable to said free end of said shank, to rotate and drive said rotary member relative to said housing, and to move said eccentric member relative to said movable cutter device, and to move said movable cutter device relative to said fixed cutter device in reciprocating action. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification