Hose line with a connection sleeve

• US 20030062722A1
• Filed: 08/21/2002
• Published: 04/03/2003
• Est. Priority Date: 08/21/2001
• Status: Abandoned Application

• Current Assignee: Truplast Kunststofftechnik GmbH
• Original Assignee: Truplast Kunststofftechnik GmbH
• Inventors: Linhart, Georg Peter
• Application Number:
  US10/225,525
• Publication Number:
  US 20030062722A1
• Time in Patent Office: Days
• US Class Current: 285/319
• CPC Class Codes: F16L 37/0985 the flexible hook extending radially inwardly from an outer part and engaging a bead, recess or the like on an inner part F16L37/0982 takes precedence

Abstract

A hose connection comprises a hose (1), an elastic sleeve (2), a connection tube (3) and a stiff ring (4). The hose (1) is made of a thermoplastic material and has a smooth surface on the inside and exhibits helically formed running wave valleys and wave mountains on the outside. The elastic sleeve (2) is fixedly connected to the hose (1) and carried at one end of the hose (1) and has a front end. The connection tube (3) has recesses 3(a). The elastic sleeve (2) engages into the connection tube (3) in the destined position of the elastic sleeve (2). The elastic sleeve (2) is at its front end furnished with a sealing lip (2a) formed for sealing of the sleeve (2) against the connection tube (3). The sleeve (2) is gripped around by the stiff ring (4) axially fixed disposed on the sleeve (2) and made of a thermoplastic material and is axially aligned. At least two tongues (4a) are formed into the stiff ring (4) with roots, wherein the tongues (4a) are spring supported around the roots of the tongues (4a) for lockingly engaging into the recesses (3a) of the connection tube (3).

Claims

1. A hose connection with a connection sleeve, wherein the hose (1) made of a thermoplastic material is smooth on the inside and exhibits helically formed running wave valleys and wave mountains on the outside and furthermore carries at one end an elastic sleeve (2) fixedly connected to the hose (1), wherein the elastic sleeve (2) engages into a connection tube (3) in the destined position of the elastic sleeve (2) and wherein the elastic sleeve (2) is at its front end furnished with a sealing lip (2a) formed for sealing of the sleeve (2) against the connection tube (3), wherein the sleeve (2) is gripped around by a stiff ring (4) axially fixed disposed on the sleeve (2) and made of a thermoplastic material and axially aligned, wherein at least two tongues (4a) are formed into the stiff ring (4), wherein the tongues (4a) are spring supported around the roots of the tongues (4a) for lockingly engaging into recesses (3a) of the connection tube (3).

2. The hose connection according to claim 1 wherein the ring (4) is axially fixed between a bead (2b) and a circulating shoulder (2c) of the sleeve (2), and wherein the bead (2b) and the shoulder (2c) are disposed between the attachment of the sleeve (2) on the hose (1) and the sealing lip (2a).

3. The hose connection according to claim 1 wherein the ring (4) is slotted in longitudinal direction.

4. The hose connection according to claim 1, wherein the sleeve (2) is screwed onto the hose (1).

5. The hose connection according to claim 1 wherein the sleeve (2) is molded onto the hose (1).

6. A hose connection comprising

a hose (1) made of a thermoplastic material having a smooth surface on the inside and exhibiting helically formed running wave valleys and wave mountains on the outside;

an elastic sleeve (2) fixedly connected to the hose (1) and carried at one end of the hose (1) and having a front end;

a connection tube (3) having recesses 3(a), wherein the elastic sleeve (2) engages into the connection tube (3) in the destined position of the elastic sleeve (2) and wherein the elastic sleeve (2) is at its front end furnished with a sealing lip (2a) formed for sealing of the sleeve (2) against the connection tube (3);

a stiff ring (4), wherein the sleeve (2) is gripped around by the stiff ring (4) axially fixed disposed on the sleeve (2) and made of a thermoplastic material and axially aligned;

at least two tongues (4a) formed into the stiff ring (4) with roots, wherein the tongues (4a) are spring supported around the roots of the tongues (4a) for lockingly engaging into the recesses (3a) of the connection tube (3).

7. The hose connection according to claim 6 wherein the stiff ring (4) is axially fixed between a bead (2b) and a circulating shoulder (2c) of the sleeve (2), and wherein the bead (2b) and the shoulder (2c) are disposed between an area of attachment of the sleeve (2) to the hose (1) and the sealing lip (2a).

8. The hose connection according to claim 6 wherein the ring (4) is open and interrupted.

9. The hose connection according to claim 6, wherein the sleeve (2) is screwed onto the hose (1).

10. The hose connection according to claim 6 wherein the sleeve (2) is molded onto the hose (1).