Tappet for a valve train or a pump drive and method of making a tappet

摘要

A tappet for a valve train or a pump drive particularly a cup tappet (1) having a hollow cylindrical outer body on whose wall region (4) an anti-rotation element (9) is received in a window-type through-opening (15), the anti-rotation element (9) being seated through support surfaces (12, 13) of a head (10) on an outer diameter (14) of the wall region (4) and extending with a shank (11) projecting from the head (10) through said through-opening (15). The anti-rotation element (9) is fixed via a welded joint. In order to fix the anti-rotation element (9) with low manufacturing costs and, at the same time, with only an insignificant impairment of the outer body, the welded joint is made between the shank of the anti-rotation element (9) and an inner body that is received in the outer body and is connected to the outer body. A method of making a tappet of the aforesaid tappet is also provided.

主权项

1. A tappet for a valve train or a pump drive, comprising a hollow cylindrical outer body having a wall region with a window-type through-opening in which an anti-rotation element is received, said anti-rotation element is seated by support surfaces of a head thereof on an outer diameter of said wall region and extends with a shank projecting from said head through said through-opening, and said anti-rotation element being fixed in position by a welded joint, the welded joint is made between the shank of the anti-rotation element and an inner body that is separate from the outer body, received in the outer body, and connected to the outer body.