IT1115908B - Mechanical tooth brush with rotating bristle tufts - has alternate tufts rotated in alternate directions by crank drive - Google Patents
Mechanical tooth brush with rotating bristle tufts - has alternate tufts rotated in alternate directions by crank driveInfo
- Publication number
- IT1115908B IT1115908B IT5068077A IT5068077A IT1115908B IT 1115908 B IT1115908 B IT 1115908B IT 5068077 A IT5068077 A IT 5068077A IT 5068077 A IT5068077 A IT 5068077A IT 1115908 B IT1115908 B IT 1115908B
- Authority
- IT
- Italy
- Prior art keywords
- tufts
- alternate
- tuft
- rotated
- crank drive
- Prior art date
Links
Abstract
The mechanical toothbrush head (20) carries tufts (42, 43), each consisting of separate bristles which are motor-driven and rotate on their centre axis. Each tuft first rotates in one direction, and then in the opposite direction, so that each tuft is simultaneously rotating in the contrary direction to the adjacent tuft. Each tuft as a slanting tip as determined by the free ends of the bristles which run to a point. The angle included by each sloping bristle tip is roughly 25 deg. The tufts are rotated by spur gears connected to each of them. A reciprocating bar drives the spur gears, mov%ed by an output shaft with a pinion (82) meshing with a crown wheel (84). To the crown wheel is pivot mounted, eccentrically, a crank arm (86) with a drive shaft (92) attached to the other end.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT5068077A IT1115908B (en) | 1977-08-12 | 1977-08-12 | Mechanical tooth brush with rotating bristle tufts - has alternate tufts rotated in alternate directions by crank drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT5068077A IT1115908B (en) | 1977-08-12 | 1977-08-12 | Mechanical tooth brush with rotating bristle tufts - has alternate tufts rotated in alternate directions by crank drive |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1115908B true IT1115908B (en) | 1986-02-10 |
Family
ID=11273516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT5068077A IT1115908B (en) | 1977-08-12 | 1977-08-12 | Mechanical tooth brush with rotating bristle tufts - has alternate tufts rotated in alternate directions by crank drive |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1115908B (en) |
-
1977
- 1977-08-12 IT IT5068077A patent/IT1115908B/en active
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19960828 |