Quick-action connection for retaining an insertion part in an orifice of a carrier

US4822228A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Ernst Senft · Asperg, DE
• Herbert Klemmer · Jeffery Road, DE
• Nikolaus Schefscik · Schwaikheim, DE

Key dates

• Filing date: Nov 25, 1986
• Grant date: Apr 18, 1989
• Expiry date: Nov 25, 2006

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T403/60
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

In a quick-action connection for retaining an insertion part in an orifice of a carrier, for example a holding nipple in a body wall, there is, in a peripheral groove of a tenon-shaped extension piece of the insertion part, a retaining ring resiliently flexible in the radial direction, which has its largest diameter in the inserted state of the insertion part. The retaining ring partially projects beyond the periphery of the extension piece and is supported on the carrier by means of one of its end faces. So that the retaining ring is capable of guaranteeing a reliable mutual connection of the two parts, even when bending moments are exerted on the insertion part inserted into the carrier orifice with a clearance fit, its annular shell is closed in the peripheral direction and extends in the form of a meander. As a result of this ring design, the retaining ring can be compressed radially in order to introduce the insertion part into the carrier orifice, and after insertion it automatically springs open again. At the same time, by means of its continuously closed and therefore axially rigid annular shell, it is supported on the carrier on the one hand and on the insertion part on th…