Drive assembly for hair trimmers
AssigneeWahl Clipper Corporation
InventorGary Erickson
Life of this patent
Estimating the term…
Abstract
A hair trimmer has a base housing and a blade set having a stationary blade and a reciprocating blade. The base housing has a blade set support at one end. The support has a pair of spaced blade set support projections. A cam follower has spaced spring retainers near a bottom of the cam follower, and spaced spring end catches near an upper edge of the cam follower. A spring has elongated legs and a tension arm. The elongated legs extend under the spring retainers and into the spring end catches in the cam follower. A spring tensioner is secured in the base housing by a latch that engages a tensioner catch. The spring tensioner secures the tension arm so that the spring is under tension.
Claims12
A hair trimmer comprising:
- a base housing, a motor and a blade set, the blade set having a stationary blade and a reciprocating blade,
- the base housing having a blade set support at one end,
- the blade set support having a pair of spaced blade set support projections,
- a cam follower having spaced spring retainers near a bottom of the cam follower, and spaced spring end catches near an upper edge of the cam follower,
- a spring having elongated legs, the elongated legs extending under the spring retainers and being secured by the spring end catches in the cam follower,
- the reciprocating blade being operably secured to the cam follower by a drive device driven by the motor, and
- the stationary blade being secured to the base housing,
- wherein movement of the spring elongated legs is limited by the blade set support projections and the cam follower spring retainers when the blade set is removed.
A hair trimmer comprising:
- a base housing, a motor and a blade set, the blade set having a stationary blade and a reciprocating blade,
- the base housing having a blade set support at one end,
- a cam follower,
- a spring;
- and
- a spring tensioner that secures the spring under tension,
- the reciprocating blade being operably secured to the cam follower, and
- the stationary blade being secured to the base housing.
Dependencies are inferred from the claim text.