Compound needle having a divided closing element

US6233977A · kind A · utility

Assignee

• Groz-Beckert · DE

Inventors

• Bernhard Schuler · Austin, US
• Klaus Ruoff · Albstadt, DE

Key dates

• Filing date: Mar 27, 2000
• Grant date: May 22, 2001
• Expiry date: Mar 27, 2020

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D04B35/06
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A compound needle includes a shank having an end; a hook formed on the shank at the shank end and having a hook tip; and a closing element slot provided in the shank and being defined by two parallel shank flanks. The closing element slot extends from a location adjacent the hook in a direction away therefrom. The compound needle further has an elongated closing element received in the closing element slot for longitudinal sliding motions therein. The closing element has a hook-closing position in which the closing element is situated in an immediate vicinity of the hook tip. The closing element is composed of at least two side-by-side disposed, resilient closing element parts each having a free terminal leg oriented toward the hook. The terminal legs are bent away from one another to define a relatively narrow funnel having an open end oriented toward the hook and a beginning spaced from the open funnel end. The closing element parts are bent away from one another from the beginning of the funnel in a rearward direction away from the hook for resiliently contacting respective slot flanks at contact locations. The contact locations are situated adjacent the beginning of the closing…