Method and apparatus for manufacturing individual brush unit of rotary toothbrush

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10398219
APP PUB NO 20170156481A1
SERIAL NO

14892574

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An apparatus for manufacturing an individual brush unit constituting a rotary brush by being stacked in multiple layers, includes an anvil having an insertion hole through which a filament group passes, a filament feeding unit which feeds the filament group from a feeder including a ring cutter on a tip and holds the filament group while a predetermined amount of the filament group protrudes outward from the insertion hole of the anvil, and an ultrasonic welder including a horn having a horn tip portion which pushes and radially expands a protruding tip of the filament group and welds a central part of the expanded filament group, to form the individual brush unit. A core of the welded central part is sandwiched between the ring cutter and the horn tip portion and is cut out, to simultaneously form a shaft hole and separate the individual brush unit from the filament group.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
KURUN CO LTD10-8 NAMIYOKE 5-CHOME MINATO-KU OSAKA-SHI OSAKA 5520001

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayashi, Isao Osaka, JP 58 547

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