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Patent Searching and Data


Title:
METHOD OF MANUFACTURING ROTARY BRUSH, ROTARY TOOTH- BRUSH AND TOOTHBRUSH
Document Type and Number:
Japanese Patent JP2003088424
Kind Code:
A
Abstract:

To provide a method of manufacturing a rotary brush which is capable of efficiently forming high-density bristles, a rotary brush and a toothbrush using the same.

A fiber tuft 1 consisting of a multiplicity of short fibers is formed by cutting long-sized fibers to a short-fiber form and one end side in the longitudinal direction of the fiber tuft 1 is fixed to a fixture 2 and a free end 1a side of the fiber tuft 1 is radially diametrally expanded by moving a diametral expanding tool 3 capable of diametrally expanding the fiber tuft 1 from the approximate central position of the fiber tuft 1 from the free end 1a which is the other end side of the fiber tuft 1 toward the periphery, by which the fiber tuft is formed to a flat planar form and the one end side of the fixed fiber tuft 1 is melted and integrated.


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Inventors:
MIZUMOTO HIROYUKI
ITO TAKAZO
AZUMA TOSHIFUMI
Application Number:
JP2001286644A
Publication Date:
March 25, 2003
Filing Date:
September 20, 2001
Export Citation:
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Assignee:
SANKYO GIKEN KK
International Classes:
A46B7/08; A46D9/02; A61C17/22; (IPC1-7): A46B7/08; A46D9/02; A61C17/22
Attorney, Agent or Firm:
Takao Suzuki (4 others)