DE202009009745U1 - hose connection - Google Patents

Abstract

Hose connection, consisting of a hose (1, 1 ') and a fitting (2, 2') with a tubular end (3, 3 '), wherein the end region (6, 6') of the hose (1, 1 ') acts on the hose tubular end (3, 3 ') of the fitting (2, 2'), characterized in that the end region (6, 6 ') of the hose (1, 1') and the tubular end (3, 3 ') of the hose Fittings (2, 2 ') are connected to each other via a positive connection.

Description

The Solution relates to a hose connection consisting of a hose and a fitting with a tubular end, wherein the end portion of the tube on the tubular End of the fitting is attached.

hose connections between a hose end and a fitting (connector for Connection of the hose with other functional parts) are usually manufactured by the hose on the tubular End of the fitting is attached, whereby the inside diameter of the Hose is slightly smaller than the outer diameter of the tubular end of the fitting, so that a frictional There is a connection between both parts. Depending on requirements to the hose connection can in addition to this connector still a clamping connection made by the two parts through one or more hose clamps are secured.

From the DE 100 51 272 A1 It is also known in hose connections for the compressed air and fuel supply of motor vehicles aufzustecken the end portion of the corresponding hose on a ring projections (pipe thickness) provided, tubular extension of a fitting.

at Use of compressed air hoses from ground starters for the compressed air supply of aircraft engines shown in practice that the hose connections, where the hose end and the fitting are connected via a friction and clamp connection are connected to each other, can solve. Because especially during continuous use of compressed air hoses There may be strong local warming in the area of fittings come that the hose material in terms of its geometric Change contour and thereby the bias of the hose clamps reduce. By loosening the hose connection can but it may be extraordinary great danger to the operators of the Ground launch devices come.

Of the Solution is the object of a hose connection specify the type mentioned, in which also when heating the hose in the area of the respective Fittings unintentional loosening of the two parts is avoided.

These The object is solved by the features of claim 1. Further, particularly advantageous embodiments disclose the dependent claims.

The Solution is essentially based on the idea of the end region of the hose and the tubular end of the fitting over to connect a positive connection with each other.

If This should be required in addition to the Positive connection also a fuse of the parts with the help made known per se hose clamps.

at A first embodiment of the solution is the Positive connection between the hose end and the fitting achieved by the tubular end of the fitting at least one radially outwardly projecting pin having, the form-fitting manner in a corresponding opening the end portion of the tube protrudes or through this opening protrudes.

When advantageous, it has proven, if on the tubular At least four evenly over the end of the fitting distributed circumferentially, radially outwardly projecting Pins are provided, each in a form-fitting manner corresponding opening of the end portion of the hose protrude or protrude through this opening.

at a second embodiment of the solution the positive connection between hose end and fitting thereby ensures that the tubular end of the fitting with the End of the hose via at least one screw connection is connected, wherein the threaded shaft of a cap screw from the outside passed radially through a bore of the end portion of the tube and into a corresponding threaded hole in the tubular The end of the fitting is screwed in.

Also in this embodiment of the solution it has proved to be useful if at least four evenly over the circumference of the end area the hose distributed arranged head screws this with the connect the tubular end of the fitting.

Preferably should protect the hose between the respective screw head and a washer disposed on the end portion of the hose be, which may have different shapes.

Further Details and advantages will be apparent from the following Illustrated embodiments of embodiments. Show it:

1 the side views of the end portion of a hose and a fitting before connecting the two parts to a first embodiment of a novel hose connection;

2 those from the in 1 shown parts composite hose connection, wherein the hose connection is partially reproduced as a longitudinal section;

3 a partially illustrated as a longitudinal section second embodiment of a novel hose connection.

In the 1 and 2 are with 1 a hose and with 2 a fitting referred to a hose connection 100 by attaching the hose 1 on a tubular end 3 of the fitting 2 be interconnected ( 2 ).

According to the solution, the tubular end 3 of the fitting 2 four evenly distributed over the circumference, radially outwardly projecting pins 4 on, each in a form-fitting manner in a corresponding opening 5 of the end area 6 of the hose 1 protrude. In addition, the hose 1 and the fitting 2 through two hose clamps 7 secured.

3 shows a second embodiment of a novel hose connection 100 ' , Here is the tubular end 3 ' a fitting 2 ' with the end area 6 ' a hose 1' by means of four evenly over the circumference of the end area 6 ' of the hose 1' distributed arranged head screws 8th connected, wherein the threaded shaft 9 the respective head screw 8th from the outside radially through a hole 10 of the end area 6 ' of the hose 1' passed through and into a corresponding threaded hole 11 in the tubular end 3 ' of the fitting 2 ' is screwed.

To protect the hose 1' is between the respective screw head 12 and the end area 6 ' of the hose 1' a domed washer 13 arranged.

Also in this embodiment, the end region 6 ' of the hose 1' and the tubular end 3 ' of the fitting 2 ' in addition to the positive connection by two hose clamps 7 secured.

1, 1'

hoses

2, 2 '

fittings

3, 3 '

tubular end up

4

spigot

5

opening

6 6 '

end regions

7

hose clamp

8th

head screw

9

threaded shaft

10

drilling

11

threaded hole

12

screw head

13

washer

100 100 '

hose connections

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• DE 10051272 A1 [0003]

Claims (7)

Hose connection consisting of a hose ( 1 ; 1' ) and a fitting ( 2 ; 2 ' ) with tubular end ( 3 ; 3 ' ), the end region ( 6 ; 6 ' ) of the hose ( 1 ; 1' ) on the tubular end ( 3 ; 3 ' ) of the fitting ( 2 ; 2 ' ), characterized in that the end region ( 6 ; 6 ' ) of the hose ( 1 ; 1' ) and the tubular end ( 3 ; 3 ' ) of the fitting ( 2 ; 2 ' ) are connected to each other via a positive connection. Hose connection according to claim 1, characterized in that the tubular end ( 3 ) of the fitting ( 2 ) at least one radially outwardly projecting pin ( 4 ), which in a form-fitting manner in a corresponding opening ( 5 ) of the end region ( 6 ) of the hose ( 1 ) or through this opening ( 5 ) protrudes. Hose connection according to claim 2, characterized in that at the tubular end ( 3 ) of the fitting ( 2 ) at least four uniformly distributed over the circumference, radially outwardly projecting pin ( 4 ) are provided, which in each case form-fitting manner into a corresponding opening ( 5 ) of the end region ( 6 ) of the hose ( 1 ) or through this opening ( 5 ) protrude. Hose connection according to claim 1, characterized in that the tubular end ( 3 ' ) of the fitting ( 2 ' ) with the end region ( 6 ' ) of the hose ( 1' ) is connected via at least one screw, wherein the threaded shaft ( 9 ) a cap screw ( 8th ) from the outside radially through a bore ( 10 ) of the end region ( 6 ' ) of the hose ( 1' ) and into a corresponding threaded hole ( 11 ) in the tubular end ( 3 ' ) of the fitting ( 2 ' ) is screwed. Hose connection according to claim 4, characterized in that at least four uniformly over the circumference of the end region ( 6 ' ) of the hose ( 1' ) distributed head screws ( 8th ) this with the tubular end ( 3 ' ) of the fitting ( 2 ' ) connect. Hose connection according to claim 4 or 5, characterized in that between the respective screw head ( 12 ) and the end area ( 6 ' ) of the hose ( 1' ) a washer ( 13 ) is arranged. Hose connection according to one of claims 1 to 6, characterized in that the end region ( 6 ; 6 ' ) of the hose ( 1 ; 1' ) and the tubular end ( 3 ; 3 ' ) of the fitting ( 2 ; 2 ' ) in addition to the positive connection by at least one hose clamp ( 7 ) are secured.