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US 10,743,651 B2Granted
Method of manufacturing a brush, and brush
AssigneeSanwa Tooth Brush Industrial Limited Partnership
InventorsKeiji Taniguchi, Katsutoshi Taniguchi
Life of this patent
Estimating the term…
Abstract
This method of manufacturing a brush 1 comprises: a first step of forming a support body 10 in which through holes 14 are formed; and a second step of inserting a brush bristle 20 in a bent state into each through hole 14 from one side of the through hole 14 to cause a looped bristle to project from the through hole 14 on the other side.
Claims17
A method of manufacturing a brush, comprising:
- a first step of forming a base with a through-hole;
- and
- a second step of inserting, with an implanting needle, a curved brush bristle into the through-hole from one end of the through-hole and making a looped bristle protrude from another end of the through-hole,
- wherein
- already before the second step is performed, the base has, at a position away from both ends of the through-hole, a uniform projection that projects from an inner wall face forming the through-hole, and extends along the entirety of the circumference of the through-hole.
2 more elements
A brush, comprising:
- a base;
- and
- a brush bristle protruding in a loop from a surface of the base;
- and
- a uniform projection that projects from an inner wall forming a through-hole in the base into which the brush bristle is inserted, and extends along the entirety of the circumference of the through-hole,
- wherein
- the projection is elastically deformable at a position away from both ends of the through-hole in a direction in which the through-hole extends.
4 more elements
Dependencies are inferred from the claim text.