Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1995-06-27
1997-04-08
Scherbel, David
Brushing, scrubbing, and general cleaning
Machines
Brushing
151766, 403333, 403361, A46B 1302
Patent
active
056176023
ABSTRACT:
It is an object of the present invention to make an engaging section between a holder section and a toothbrush section of a motor-driven toothbrush more simple, manufacture thereof easier and also minimize the production cost as well as to achieve minimization and weight reduction thereof, and also to improve the reliability of insertion. For this purpose, an engaging/receiving hole or bore is formed in the toothbrush section of the motor-driven toothbrush, and a projection of the holder section is inserted into the engaging hole for fixing the toothbrush section to the holder section. Also the engaging projection is formed on said holder section and the toothbrush section is made of resilient material to provide the engaging hole having a round cross-section into which the projection is inserted. Furthermore the engaging hole is provided with a round cross-section into which the projection formed in said holder section is inserted, said engaging hole having a larger diameter section in the entrance side thereof and a smaller diameter section in the bottom side thereof, and at least one resilient engaging section projecting to a center of the engaging hole is continuously provided in at least one of the larger diameter section in the entrance side of the engaging hole and the smaller diameter section in the bottom side of the engaging hole.
REFERENCES:
patent: 2809846 (1957-10-01), Whiteford
patent: 4575277 (1986-03-01), Dickey et al.
patent: 4811445 (1989-03-01), Lagieski et al.
patent: 5017068 (1991-05-01), Cooksey
patent: 5066162 (1991-11-01), Wall et al.
Scherbel David
Till Terrence R.
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