Toothbrush
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 19, 2000
Issued Date -
N/A
app pub date -
Jan 7, 1999
filing date -
Dec 18, 1991
priority date (Note) -
In Force
status (Latency Note)
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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.
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