Abstract: The inventive handle for a brush, in particular for a toothbrush or a domestic brush, has an integral handle body with a hollow space which is surrounded by a wall. Recesses which are offset in relation to one another and open into the hollow space are formed in the wall. The handle is produced from a plastic in an injection-molding process using an injection-molding die which has finger elements, with sections of these finger elements touching in a sealing manner when the injection-molding die is in the closed state and, as a result, these finger elements forming the recesses and the hollow space in the hardened handle.
Type:
Grant
Filed:
August 28, 2006
Date of Patent:
February 26, 2013
Assignee:
Trisa Holding
Inventors:
Armin Baertschi, Martin Zwimpfer, Christian Hilfiker
Abstract: The invention relates to a toothbrush with a handle (1) and a bristle-carrying front head part (3) which are interlinked by means of a neck part (4). The head part (3) or the zone adjoining said head part accommodates a mechanical vibratory device (10) that sets the head part (3) vibrating. Said vibratory device is functionally linked with an electric power source (25) accommodated in the handle (1) by means of electrical connections (33, 34) that extend in the neck part (4). The aim of the invention is to improve a toothbrush in such a manner that the vibrations are not transmitted to the handle (1) To this end, vibration-damping means (7) are provided that allow the vibrations to take effect mainly in the head part (3) and to be hardly perceptible in the handle (1) so that the toothbrush is pleasant to use. The size of the inventive toothbrush corresponds roughly to that of conventional manual toothbrushes.
Type:
Application
Filed:
March 11, 2002
Publication date:
September 12, 2002
Applicant:
Trisa Holding
Inventors:
Peter Hafliger, Franz Fischer, Gunther Elster