Apparatus for controlling the feed of yarn

• US 4,221,317 A
• Filed: 07/12/1979
• Issued: 09/09/1980
• Est. Priority Date: 12/28/1976
• Status: Expired due to Term

• Current Assignee: Hiraoka Kogyo Kabushiki Kaisha
• Original Assignee: Hiraoka Kogyo Kabushiki Kaisha
• Inventors: Hasegawa, Kenichi, Fukada, Minoru, Sakaguchi, Zen
• Primary Examiner(s): Gilreath, Stanley N.
• Application Number:
  US06/057,110
• Time in Patent Office: 425 Days
• Field of Search: 226/168, 226/174, 226/178, 226/188, 74/661, 74/665 R, 74/665 A, 74/665 B, 74/665 D, 74/665 Q, 112/79 R, 112/79 A, 112/266.2
• US Class Current: 226/188
• CPC Class Codes: B65H 2701/31 Textiles threads or artificial strands of filaments
• CPC Class Codes: B65H 2701/38 Thread sheet, e.g. sheet of parallel yarns or wires
• CPC Class Codes: B65H 51/30 Devices controlling the forwarding speed to synchronise with supply, treatment, or take-up apparatus B65H59/10, B65H59/38 take precedence
• CPC Class Codes: D05B 45/00 Applications of measuring devices for determining the length of threads used in sewing machines measuring devices in embroidery machines D05C, in general G01B
• CPC Class Codes: D05C 15/18 Thread feeding or tensioning arrangements
• CPC Class Codes: Y10T 74/19014 Plural prime movers selectively coupled to common output

Abstract

A method and apparatus for feeding yarn during a single stitch of a needle such that the mean rotational frequency of a yarn feeding drum connected to a first and second driving member is changed during the single stitch of the needle so as to regulate and control the feeding of the yarn and provide a maximum and minimum yarn length in the resulting stitch or selectively provide a yarn length between the maximum or minimum length.

Claims

1. An apparatus for controlling the feed of yarn from a yarn feed drum which comprises:

first and second shaft members;

first and second gears respectively driven by said first and said second shaft members;

a third shaft member which has said first gear mounted at one end thereof and said second gear mounted at the other end thereof;

means for driving said third shaft member in a clockwise and counterclockwise direction; and

first and second one way clutch members respectively mounted between said first gear and said third shaft member and between said second gear and said third shaft member, said first and said second one way clutches being locked in a counter direction with respect to one another and said third shaft member being connected to said yarn feed drum.