Connecting element for inseparable retention of a lever-type cam follower

US7146950B2 · kind B2 · utility

Assignee

• Ina Schaeffler KG · DE

Inventors

• Stephan Moeck · Pretzfeld, DE
• Helmut Engelhardt · Herzogenaurach, DE

Key dates

• Filing date: Jun 30, 2005
• Grant date: Dec 12, 2006
• Expiry date: Jun 30, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/2107
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention proposes a connecting element (9) for retaining a lever-type cam follower (1), that serves to activate a gas exchange valve (5) of an internal combustion engine, inseparably on a support element (2) comprising a spherical end (7) on which the cam follower (1) is pivotally mounted through a concave depression (6). The connecting element (9) engages into an annular groove (8) under the spherical end (7). In a connecting element (9) of this type, a central portion (10) of the connecting element (9) bears against an underside (11) of the cam follower (1) oriented toward the support element (2) and forms, through two legs (12, 13) and a crossbar (14) connecting these legs (12, 13) to each other, a U-shaped recess (15) in longitudinal direction of the cam follower (1). This recess (15) engages around the groove (8) after the manner of a fork and orthogonally to a pivoting direction of the cam follower (1), substantially without lash. Angled retaining claws (16, 17) bent from the legs (12, 13) extend in transverse direction of the cam follower (1) and engage after the manner of pincers over side walls (18, 19) of the cam follower (1). By a clamping of the retaining claws (16…