DE6753292U - END FITTING FOR FASTENING TO A BRAIDED HOSE - Google Patents

Description

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H. S L. AUSTIN ENGINEERING LIMITED Hilyn Works, Lockfield Avenue, Brirasdovn Enfield, Middlesex / England

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End fitting for attachment to an external opening hose

The invention relates to rndfittings for fastening as flexible hoses and its main task is to create an end fitting that goes through a braided hose Beading is attached. Under the name "braided Hose "is to be understood as a hose that consists of a inner tube made of natural or synthetic G or plastic, which is covered by a braided sheathing made of metal wires or fibers or is wrapped.

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The invention relates to an end fitting for attachment on a braided hose of the type described above, which end fitting comprises a tubular body with a Has shaft part which can be inserted into a linden tree of the tubular inner part of a braided hose lcann and the outer surface of which is provided with a number of grooves or threads and a clamp is provided, which are arranged around the end part of the braided sheath of the hose and so attached to the tubular body can be that it rests on the shaft part and is concentric to this, which clamp with internal grooves or is provided with an internal thread, the arrangement being such that when the hose is applied to the end part of the hose Fitting the crimping of the ferrule causes the hose to be compressed so that the material of the Inner tube in the shaft grooves or in the shaft thread flows and a mechanical interlocking of the grooves or threads of the ferrule with the braided lfcnaanteltimg takes place, creating a secure seal between the fitting and the inner hose as well as a coupling both on the inner tube as well as on the braided Umütantelxnig is obtained.

For a better understanding of the successful wixd. these after "following in. ¥ exbinding with the enclosed drawing of a sxirinchmgs—

according to end fittings described »one view in elevation and shows in section, the fitting on a braided Hose is shown applied.

In the drawing, Io denotes an essentially tubular end fitting which is formed with a conical seat 11 at its outer end. With a nut provided with an internal thread is designated by 12, through which the fitting on a with a! Suitable threaded connector can be attached and which is slidable on a shaft part 13 which is held in place by a retaining ring 14. As a result of the fact that the nut 12 is axially slidable to the shaft part 13, it is possible to withdraw this together with the shaft part in order to expose the conical section 11 for inspection, cleaning and for easier assembly. Denoted at 15 is a flange of hexagonal shape which is integral with the body of the fitting and which enables the fitting to be held against rotation when the loose nut 12 is tightened onto a screw connection, thus avoiding the possibility of it on the tube to which the ENEL fitting is secured, a Drelrmosent exercised "rircL with: Io is a 3si" t a Gewiade-provided shaft part referred ^ the ait to the flange 15 snscülIeSt and ^ ux fastening a an appropriate Iimeiige "~ Inge provided! Z- ^ inge 17 serves. *

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This screw connection «he clamp 17 with the shaft part 16 I prevents the possibility of the fitting being "blown out", | when the latter is in use and the DtucI: a liquid I

speed or a fluid passing through the hose, is exposed. As you can see, the ferrule 17 is provided with an internal thread 18, the one with the threading of the hose comes into engagement when the Zviinge sagged is achieved, whereby a firm slip-free clutch is achieved. With a shaft part 19 is designated, which is inserted into the hose can be and is provided with external grooves or an external thread 2o, which forms a wedge for the hose, if this is deformed when the ferrule 17 is beaded and also results in a sealing effect, since the grooves mentioned or fill the thread with deformed tubing. The shaft part 19 is provided at its end with an inner chamfer 21, which prevents material from building up at this point when the hose binds in use. Further the shaft part 19 is rounded, as shown at 22, in order to facilitate the application of the hose and in addition prevent damage to the hose during fitting, assembly and maintenance.

As can be seen, the ferrule 17 widens at its outer end 23 in order to facilitate assembly and furthermore

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bending the hose unc! the braid to the end fitting to enable.

Finally it should be mentioned that the end of the shaft portion 19 is recessed end of the Zvinge 17 ziaröclc, vm to prevent the hose check on the log end bends so that any

Bending forces due to the outer braiding and the Zmiage be included.

If a fitting of the type described above is used on a braided hose made of an inner hose 24, which made of natural or synthetic rubber or of a plastic is made, and consists of an outer braided sheath 25, is applied, the shaft part 19 fully inserted into the inner end of the inner tube and the ferrule 17 so over the end portion of the braided sheath arranged and attached to the threaded shaft part 16, whereupon a bead pressure is exerted on the ferrule is, through which the inner tube 24 and the braided sheath 25 are compressed, resulting in The result is that the material of the inner tube flows into the grooves or threads 2o of the shaft part 19, at the same time the braided sheath and the ferrule 17 are mechanically locked together. That way becomes a secure seal between the inner tube 24 and the end

fittlng along with an effective grip on both the Inner tube as well as on the braided sheathing.

Claims (7)

3 £ ί, Η eye protection claims 1. End fitting for attachment to a braided hose., characterized by a tubular body (10) with a shaft part (19) j which into one end of the inner tube a braided hose can be used and on its outer surface with a number of grooves or threads (20) is provided and a ferrule (17) is provided which is attached to the end part of the braided sheath of the hose can be arranged surrounding this and attached to the tubular body (10) so that it can rests on the mentioned shaft part and is concentric to this, which clamp inside with grooves or threads (18) is formed, the arrangement being such that when applied to the end part of the hose Fitting the beading of the ferrule (17) has the result that the hose is compressed so that that Material of the inner tube flows into the grooves or threads (20) and a mechanical lock of the i O O O A e ^ e? iC -s- Grooves or Gewiadegänge (18) of the ferrule snit the braided Sheathing is obtained, creating a secure seal between the fitting and the inner tube as well gives a grip on both the inner tube and the braided sheath. 2. End fitting according to claim 1, characterized in that the Shank part (19) with a chamfered and rounded End is essentially as described and provided for the stated purpose. 3. End fitting according to claim 1, characterized in that the clamp (17) in threaded engagement with a shaft part (16) of the tubular body (Iq) can be brought. 4. End fitting according to claim 3, characterized in that the clamp (17) is provided with a widening outer end ( ^y . 5. End fitting according to claims 1-5, characterized in that ar. f _; f \ ¹ α '■' Y% J -9- that the end of the shaft part (19) from the end of the clamp (17)
from back sit a recess is provided. U έ 9 ^ L ^ 5 'I. 6. End fitting according to the preceding claims, characterized in that | indicates that the tubular body with a six | H flange (15) is provided. f ir 7. End fitting according to the preceding claims, characterized in that | indicates that this is fitted with a loose upper nut | _ ft (12) is provided, by means of which the i-itting on a | Screw connector can be attached, | ~ 1