Plug-In Connector For Tube And Hose Lines With Reinforced Material Cross-Section

• US 20070236013A1
• Filed: 02/26/2004
• Published: 10/11/2007
• Est. Priority Date: 10/15/2003
• Status: Active Grant

• Current Assignee: Henn GmbH & Co KG.
• Original Assignee: Henn GmbH & Co KG.
• Inventors: Hartmann, Harald
• Granted Patent: US 7,614,665 B2
• Time in Patent Office: Days
• US Class Current: 285/321
• CPC Class Codes: F16L 33/227 the hose being introduced into or onto the connecting member and automatically locked F16L37/084 takes precedence
• CPC Class Codes: F16L 37/0885 with access to the split elastic ring from a radial or tangential opening in the coupling

Abstract

The invention relates to a plug-in connection for pipe and hose lines with a reinforced material cross-section. Said connection consist of a neck that forms at least one detent collar and a connector that can be engaged with the neck and has a least one detent spring with detent limbs, the latter locking behind at least one of the detent collars of the neck. In order for the connector to absorb intense detent forces, it is characterized by at least a double wall in the vicinity of the detent spring openings.

Claims

11-16. -16. (canceled)

17. A plug-in connection for connecting pipes or hoses, comprising

a nozzle having at least one detent shoulder, and

a plug adapted to interfit with the nozzle and including an inner sleeve and an outer sleeve, said inner sleeve being spaced apart from and substantially parallel to the outer sleeve, wherein the plug further includes at least one opening extending through the inner and outer sleeves, and

a detent spring having legs adapted to protrude inwardly through the at least one opening and latch behind the at least one detent shoulder of the nozzle,

wherein the inner sleeve and the outer sleeve are joined at an end of the plug facing the nozzle by a material connection, thereby enabling the inner and outer sleeves to withstand a high static and dynamic pulling force.

18. The plug-in connection of claim 17, wherein the inner sleeve and the outer sleeve form a double wall at least in a region proximate to the at least one opening, said double wall in the proximate region being formed by squeezing together the inner sleeve and the outer sleeve.

19. The plug-in connection of claim 17, wherein a spacing between the inner sleeve and the outer sleeve is smaller in a region proximate to the at least one opening than in a region away from the at least one opening, and wherein the inner sleeve and the outer sleeve are connected at least in the region away from the at least one opening by an end wall oriented in the radial direction.

20. The plug-in connection of claim 17, wherein the detent spring is U-shaped having parallel legs which form opposing latching elements, with each latching element protruding through a corresponding one of the at least one opening, said corresponding openings being parallel to one another.

21. The plug-in connection of claim 17, wherein the detent spring includes a detent clip extending through an associated one of the at least one opening and facing an inclined surface of the detent shoulder on the nozzle, said detent clip latching behind the detent shoulder at a third latching location.

22. The plug-in connection of claim 17, wherein the plug further includes a sealing ring with a scaling lip that is angled so as to sealingly contact an inclined surface formed on the detent shoulder.