Captive securing means for a screw

US8920090B2 · kind B2 · utility

Assignee

• PHOENIX CONTACT GMBH & CO. KG · DE

Inventor

• Valeri Reimchen · Altenbeken, DE

Key dates

• Filing date: Oct 18, 2011
• Grant date: Dec 30, 2014
• Expiry date: Feb 14, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S411/999
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A captive securing means for a screw has a shaft for holding the screw and a retaining means arranged in the shaft, the retaining means resting, in the inserted state of the screw, at a tangential point on the outer circumferential surface of the screw, the retaining means arranged on the inner circumferential surface of the shaft, and the retaining means extending from the inner circumferential surface of the shaft into the free region of the shaft such that at the tangential point, the angle between the direction of extent of the retaining means and the outer circumferential surface of the screw is <90 degrees. Consequently, the screw is axially moveable in the shaft without the quality of the captive securing means being impaired, and the screw is captively secured in the shaft by the retaining means resting on the outer circumferential surface of the screw.