Closure element

Abstract

The invention relates to a closure element (1) for tightly closing a bore (2), the closure body (3) of which closure element can be pressed into the bore (2) with an oversize. In order to avoid damage to the bore, the closure body (3) is designed as a hollow body. In this way, the closure body can deform slightly as the closure body is pressed into the bore (2) and can thereby reduce the radial pressure on the wall (4) of the borehole. At the same time, the weight of the closure element is reduced. The closure element is preferably a hollow sphere having uniform wall thickness.

Description

technical field [0001] The invention relates to a closure element for tightly closing a hole, the closure body of which is provided with a defined outer diameter so that it can be pressed into the hole. Background technique [0002] Such closure elements are used in engine housings and in hydraulic and pneumatic systems operating at relatively low pressures. For example, in motor vehicle construction, it is inserted tightly into the bore of the engine housing. Closing elements of this type can be produced inexpensively and are also easy to assemble and remove. [0003] A closure element of this type is disclosed in EP PS 0 364 699 B1. Here, the closure element is in the form of a solid sphere which can be pressed into a plug recessed into the hole. The solid sphere serves here as the expansion element of the plug. However, it can also be pressed directly into the hole to be closed. In both cases, the diameter of the sphere is oversized compared to the hole size, so that...

AI Technical Summary

Problems solved by technology

If a solid sphere is pressed directly into the hole to be closed, high radial pressures are generated on the circular pressing surface during pressing, which can cause damage to the hole

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