Device for cutting bristles of tooth brushes to different lengths in different selected areas of a tuft pattern
AssigneeG. B. Boucherie N.V.
InventorLionel P. Boucherie
Life of this patent
Estimating the term…
Abstract
A device for cutting bristles of tooth brushes to different lengths in different selected areas of a tuft pattern comprises a support for holding the brush head, at least one shield associated with a selected area of the tuft pattern and movable between a rest position distant from the head and the bristle tips and an active position close to the head; the shield is provided with ramp means for engaging the tips of the bristles in the selected area and for imparting a radial component of movement to the engaged bristle tips to bend the corresponding bristles in directions away from the bristles outside the selected area upon movement of said shield from its rest position to its active position.
Claims20
A device for cutting bristles of tooth brushes to different lengths in different selected areas of a tuft pattern comprising:
- a support for holding a brush head having tufts of bristles projecting therefrom,
- at least one shield member associated with a selected area of the tuft pattern and movable with respect to said support at least in a direction parallel to the bristles between a rest position distant from the brush head and the bristle tips and an active position close to the brush head, said shield member, when moving from its rest position to its active position, engaging and bending the bristles in the selected area while leaving unaffected the bristles outside the selected area;
- a cutter for cutting the exposed ends of the bristles outside the selected area;
- and
- ramp means provided on said shield member for engaging the tips of the bristles in the selected area of the tuft pattern and for imparting a radial component of movement to the engaged bristle tips to bend the corresponding bristles in directions away from the bristles outside the selected area upon movement of said shield member from its rest position to its active position
The device of claim wherein said shield member is a strip-shaped member having a width limited to the width of a single row of bristle tufts.
A device for cutting bristles of tooth brushes to different lengths in different selected areas of a tuft pattern comprising:
- a support for holding a brush head having tufts of bristles projecting therefrom;
- at least one shield member associated with a selected area of the tuft pattern and movable with respect to said support at least in a direction parallel to the bristles between a rest position distant from the brush head and the bristle tips and an active position close to the brush head, said shield member, when moving from its rest position to its active position, engaging and bending the bristles in the selected area while leaving unaffected the bristles outside the selected area;
- and
- a cutter for cutting the exposed ends of the bristles outside the selected area;
- wherein said shield member is rotatable about an axis perpendicular to the bristles, said axis lying outside the brush head at a level comprised within the height of the bristles, and that said shield member is a strip-shaped member provided with a length-wise extending groove, sloping surfaces and two parallel projecting ribs, said groove defining a recessed bottom connected by said sloping surfaces to said ribs to form a ramp means for engaging the tips of the bristles in the selected area of the tuft pattern and for imparting a radial component of movement to the engaged bristle tips to bend the corresponding bristles away from the bristles outside the selected area upon movement of said shield member from its rest position to its active position.
Dependencies are inferred from the claim text.