초록 ▼

A trimmer (10) has a power source (12) and a tabular drive shaft housing (32) for coupling the power source (12) to a rotating working element. The drive shaft housing (32) is rotatable with respect to the power source (12) and a handle (26) which is fixed to the power source, such that rotation of

A trimmer (10) has a power source (12) and a tabular drive shaft housing (32) for coupling the power source (12) to a rotating working element. The drive shaft housing (32) is rotatable with respect to the power source (12) and a handle (26) which is fixed to the power source, such that rotation of the drive shaft (32) allows the plane of the working element to be re-oriented. Rotation of the drive shaft housing is fixed by a coupling latch (38) disposed within the handle. An external trigger (46) located on the handle is provided for manually decoupling the coupling latch for allowing rotation of the handle.

대표청구항 ▼

[ What is claimed is:] [1.] A power tool comprising:a power source;an elongated drive shaft within an elongated drive shaft housing for driving a working implement located proximate a first end of the tubular housing in a fixed relationship thereto, said drive shaft coupled to the power source;a mai

[ What is claimed is:] [1.] A power tool comprising:a power source;an elongated drive shaft within an elongated drive shaft housing for driving a working implement located proximate a first end of the tubular housing in a fixed relationship thereto, said drive shaft coupled to the power source;a main handle coupled in non-rotatable, fixed relationship to the power source and through which the drive shaft housing extends; anda coupling for selectively locking the rotational orientation of the tubular housing with respect to the handle and the power source;wherein the coupling comprises:a collar fixed to the elongated tubular housing; anda coupler fixed to the elongated tubular housing;a coupler mounted within the main handle for sliding in a longitudinal direction along the drive shaft housing between an engaged position with the collar in which rotation of the elongated drive shaft housing is locked against the main handle and a disengaged position in which the drive shaft housing is free to rotate at least through a predetermined angle with respect to the main handle and the power source.