FLANGE FOR A HOSE

Abstract

Flange for a hose (2), which flange comprises: —an annular flange body (4) having a central hose opening (5); —an annular locking element (9) for locking the annular flange body (4) in a circumferential groove (3) of a hose (2), which annular locking element (9) is composed out of at least two generally arc shaped locking element parts (9), wherein the annular locking element (9) is concentrically arranged in the central hose opening (5) of the annular flange body (4); and —couplings (7, 8) for each of the at least two generally arc shaped locking element parts (9), wherein each coupling (7, 8) has a first coupling part (7) arranged on the annular flange body (4) and a second coupling part (8) arranged on the respective arc shaped locking element part (9), which first coupling part (7) couples to the second coupling part (8).

Claims

1. Flange for a hose, which flange comprises: an annular flange body having a central hose opening; an annular locking element for locking the annular flange body in a circumferential groove of a hose, which annular locking element is composed out of at least two generally arc shaped locking element parts, wherein the annular locking element is concentrically arranged in the central hose opening of the annular flange body; and couplings for each of the at least two generally arc shaped locking element parts, wherein each coupling has a first coupling part arranged on the annular flange body and a second coupling part arranged on the respective arc shaped locking element part, which first coupling part couples to the second coupling part.

2. Flange according to claim 1, wherein the first coupling part is a groove extending in axial direction from a first end surface of the annular flange body, wherein the length of the groove is smaller than the thickness of the annular flange body and wherein the second coupling part is a protrusion arranged on the radially outer surface of the respective locking element part, which protrusion has in axial direction a cross-section corresponding to the cross-section of the groove.

3. Flange according to claim 2, wherein the cross-section of the protrusion and the cross-section of the groove is T-shaped.

4. Flange according to claim 1, wherein the outer diameter of the annular locking element corresponds with the diameter of the central hose opening D.sub.c.

5. Flange according to claim 1, wherein the annular flange body has a number of axially extending through holes evenly positioned along the circumference of the annular flange body.

6. Combination of a flange according to claim 1 and a hose having an outer diameter D.sub.h smaller than the diameter of the central hose opening D.sub.c and larger than the inner diameter of the annular locking element, which hose has on an end a circumferential groove, in which the annular locking element is at least partially accommodated.

Description

[0022] These and other features of the invention will be elucidated in conjunction with the accompanying drawings.

[0023] FIG. 1 shows a perspective view of an embodiment of a combination according to the invention.

[0024] FIG. 2 shows a perspective view of an arc shaped locking element part of the combination according to FIG. 1.

[0025] FIG. 3 shows a perspective view of the annular flange body of the combination of FIG. 1.

[0026] FIG. 4 shows a cross-sectional view of the combination according to FIG. 1 in assembled state.

[0027] FIG. 1 shows a combination 1 according to the invention. The combination 1 has a hose 2 with a circumferential groove 3 arranged on one end of the hose 2.

[0028] An annular flange body 4 is positioned around the hose 2, such that the hose 2 extends through the central hose opening 5.

[0029] A number of axially extending through holes 6 are evenly positioned along the circumference of this annular flange body 4 and allow for mounting the flange body 4 to another flange.

[0030] The annular flange body 4 furthermore has grooves 7 with T-shaped cross-section, which correspond with T-shaped protrusions 8 arranged on arc shaped locking element parts 9, which together can form an annular locking element.

[0031] FIG. 2 shows an enlarged perspective view of an arc shaped locking element part 9 provided with the protrusion 8, which has, in axial direction A, a T-shaped cross-section.

[0032] The arc shaped locking element part 9 has a slanting contact surface 10, with which the part 9 abuts a side of the groove 3 of the hose 2.

[0033] FIG. 3 shows a perspective view of the annular flange body 4. This flange body 4 has a uniform width w and is provided with four grooves 7 with T-shaped cross-section. The length of the grooves 7 is smaller than the width w, such that a stop 11 is provided against which a T-shaped protrusion 8 can rest. This stop 11 allows for an axial force to be exerted from the annular flange body 4 onto the hose 2, such that the hose end can be pressed sealingly against another flange.

[0034] FIG. 4 shows a cross-sectional view of the combination 1 of FIG. 1. In this figure the flange is in assembled state such that the annular locking element 8, 9 is coupled to and arranged concentrically within the annular flange body 4.

[0035] As can be seen, the diameter D.sub.c of the central hose opening 5 is larger than the outer diameter D.sub.h of the hose 2, while the inner diameter of the annular locking element 8, 9 corresponds to the diameter D.sub.g of the groove 3.