Toothbrush
First Claim
1. A toothbrush comprising a brush head and a brush handle;
- wherein said brush head comprises a front end and a rear end;
wherein said brush head includes an axial recess extending along a longitudinal axis of said rear end of said brush head;
wherein said brush handle comprises a front end and a rear end; and
wherein said brush handle further comprises an axial sliding bearing extending along a longitudinal axis of said front end of said brush handle;
wherein said brush head is releasably connected to said brush handle by a bayonet catch;
wherein said bayonet catch comprisesat least one locking groove in said axial recess in said rear end of said brush head; and
a locking pin which is mounted in said axial sliding bearing;
wherein said locking pin comprisesa front end which protrudes out of said front end of said brush handle wherein said front end of said locking pin comprises at least one bayonet stud, each said bayonet stud being directed radially to the locking pin and engaging a corresponding said locking groove; and
wherein said locking pin is movable within said axial sliding bearing to a limited extent along said longitudinal axis of said front end of said brush handle and is non-rotatable about said longitudinal axis of said front end of said brush handle; and
wherein said locking pin is resiliently prestressed by a prestressing device along said longitudinal axis of said front end of said brush handle in a direction away from the brush head.
4 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a toothbrush (20) with a brush head which can be secured on a brush handle (24) by a bayonet catch (26). The bayonet catch comprises a locking pin (28) which is mounted in the front end of the brush handle (24) in such a way that it can be displaced axially to a limited extent but is non-rotatable and which is subject to the action of a prestressing device (50). The brush head (22) is provided with a recess (102) which has a locking groove pursuant to which the brush head (22) is mounted on the locking pin (28) by engagement of a bayonet stud (32) in the locking groove (106), the locking pin (28) being pulled out of the brush handle (24) counter to the prestressing device (50) until the bayonet stud (32) locks into a lock-in portion (114) of the locking groove. Since the locking groove is arranged in the bristle bed (100) of the brush head (22), a minimum use of material for the brush head, which is disposable after wearing out, is guaranteed and the brush head is reliably secured on the brush handle.
-
Citations
10 Claims
-
1. A toothbrush comprising a brush head and a brush handle;
-
wherein said brush head comprises a front end and a rear end; wherein said brush head includes an axial recess extending along a longitudinal axis of said rear end of said brush head; wherein said brush handle comprises a front end and a rear end; and wherein said brush handle further comprises an axial sliding bearing extending along a longitudinal axis of said front end of said brush handle; wherein said brush head is releasably connected to said brush handle by a bayonet catch; wherein said bayonet catch comprises at least one locking groove in said axial recess in said rear end of said brush head; and a locking pin which is mounted in said axial sliding bearing; wherein said locking pin comprises a front end which protrudes out of said front end of said brush handle wherein said front end of said locking pin comprises at least one bayonet stud, each said bayonet stud being directed radially to the locking pin and engaging a corresponding said locking groove; and wherein said locking pin is movable within said axial sliding bearing to a limited extent along said longitudinal axis of said front end of said brush handle and is non-rotatable about said longitudinal axis of said front end of said brush handle; and
wherein said locking pin is resiliently prestressed by a prestressing device along said longitudinal axis of said front end of said brush handle in a direction away from the brush head. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification