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Title:
METHOD AND APPARATUS FOR MANUFACTURING BRUSH SINGLE BODY OF ROTARY TOOTHBRUSH
Document Type and Number:
Japanese Patent JP2015205018
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for manufacturing a brush single body in which the occurrence of defective products is reduced and the productivity is high, in the manufacturing of the brush single body of a rotary toothbrush having a roller-shaped rotating brush obtained by overlaying multiple pieces of substantially disc-shaped brush single bodies formed by radially joining synthetic resin strands such as nylon.SOLUTION: An apparatus for manufacturing a brush single body is configured by stacking multiple pieces to form a rotating brush, and comprises: a base formed by assembling a large number of strands in a bundle shape and provided with insertion holes passing a strand group; a strand delivery part for feeding the strand group from a feeder with a ring cutter and holding it while being projected from the insertion holes of the base to the outside by a fixed quantity; and an ultrasonic welding machine with a horn for radially pushing and opening a projecting end of the strand group by the tip part and welding the central portion. A method and apparatus for manufacturing the brush single body of the rotating brush is characterized in that a central part of a welded central portion is sandwiched and cut off with the ring cutter and a horn tip to form a shaft hole, and at the same time, the brush single body is separated from the strand group.

Inventors:
HAYASHI ISAO
Application Number:
JP2014087189A
Publication Date:
November 19, 2015
Filing Date:
April 21, 2014
Export Citation:
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Assignee:
KURUN CO LTD
International Classes:
A46D3/04; A61C17/22
Attorney, Agent or Firm:
Toru Izumiya