Plug-in connection for pipelines and hoses

Pipe joints or couplings – Essential catch

Patent

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Details

285307, 285308, 285371, F16L 3708

Patent

active

058553991

ABSTRACT:
A plug-in connection is described for the joining of pipelines and hose lines, especially for use with the pipeline systems of motor vehicles, consisting of an inner sleeve and an outer sleeve, which accommodate a pipeline or hose line between them, so that a pipe socket can be placed on top of the outer sleeve, which can be locked by means of a protective element to the outer sleeve. The pipe socket has, on its outer circumference, at least one radial trapezoidal indentation oriented in the lengthwise direction. The pipe socket has an opening in the region of the indentation in the circumferential direction, through which a piece of the protective element reaches, and the indentation is matched up with a trapezoidal projection on the outer sleeve, with which the protective element interacts. The plug-in connection has at least one length-minimized, width-variable, integrated projection/opening arrangement on the outer sleeve and in the pipe socket with a detent spring for single-hand operation. The integrated projection/opening arrangement interacts with a detent projection captively arranged on the pipe socket in a relocate guide formed by the particular indentation, the detent projection being fashioned as a trapezoidal bead partly reaching through the particular opening.

REFERENCES:
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patent: 4884829 (1989-12-01), Funk et al.
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patent: 5078429 (1992-01-01), Braut et al.
patent: 5094493 (1992-03-01), Sauer
patent: 5273323 (1993-12-01), Calmettes et al.

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