Hydraulic sealing body for bicycle braking systems and hydraulic hose assembly for bicycle braking systems

Patent metadata

Field	Value
Publication number	US-11085562-B2
Application number	US-201815991212-A
Country	US
Kind code	B2
Filing date	May 29, 2018
Priority date	Jun 13, 2017
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

A hydraulic sealing body including a radially inner surface defining a through-cavity and an annular element projecting in a radially inner direction from said radially inner surface is disclosed herein. The annular element includes a first annular abutment surface configured to receive in contact relationship a head portion of a coupling terminal, and a second annular abutment surface, axially opposite to the first, configured to receive in contact relationship an axial end of a hydraulic hose.

First claim

What is claimed is:

1. A hydraulic hose assembly for bicycle hydraulic braking systems comprising:
a hydraulic hose comprising an axial end;
a coupling terminal comprising an insertion portion inserted in said axial end of the hydraulic hose and a head portion arranged at an end of the insertion portion and projecting in a radially outer direction from said insertion portion; and
a hydraulic sealing body comprising a perimeter wall defined between a radially inner surface and a radially outer surface, said perimeter wall is made of a crimpable ductile metallic material that is plastically deformed by crimping, said radially inner surface defining a through-cavity and an annular element projecting in a radially inner direction from said radially inner surface,
said annular element is made of elastomeric material and comprises a first annular abutment surface configured to receive in a contact relationship a head portion of a coupling terminal and a second annular abutment surface, axially opposite to the first annular abutment surface, configured to receive in contact relationship an axial end of a hydraulic hose, wherein said annular element is inserted in said through-cavity of the hydraulic sealing body, and said first annular abutment surface is in contact with said head portion of the coupling terminal and said second annular abutment surface is in contact with said axial end of the hydraulic hose.

2. The hydraulic hose assembly according to claim 1 , wherein said head portion of the coupling terminal comprises, at an axial end facing towards said insertion portion, an annular abutment surface arranged in contact relationship with said first abutment surface of the annular element of the hydraulic sealing body.

3. The hydraulic hose assembly according to claim 1 , wherein said annular element of the hydraulic sealing body defines a central opening having a diameter smaller than a dimension in the radial direction of the head portion of the coupling terminal and greater than a dimension in the radial direction of the insertion portion of the coupling terminal.

4. The hydraulic hose assembly according to claim 1 , wherein said head portion of the coupling terminal comprises a connection surface arranged at an axial end of the head portion opposite to the insertion portion; said connection surface being axially outer with respect to the hydraulic sealing body.

5. The hydraulic hose assembly according to claim 1 , comprising a clamping screw slidably couplable with said hydraulic hose and configured to contact and crimp said hydraulic sealing body.

6. A hydraulic sealing body for bicycle hydraulic braking systems, the sealing body comprising a perimeter wall defined between a radially inner surface and a radially outer surface, said perimeter wall is made of a ductile metallic material that is plastically deformed by crimping, said radially inner surface defining a through-cavity and an annular element projecting in a radially inner direction from said radially inner surface,
said annular element is made of elastomeric material and comprises a first annular abutment surface configured to receive in a contact relationship a head portion of a coupling terminal and a second annular abutment surface, axially opposite to the first annular abutment surface, configured to receive in contact relationship an axial end of a hydraulic hose, wherein said annular element is inserted in said through-cavity of the hydraulic sealing body.

7. The hydraulic sealing body according to claim 6 , wherein said radially inner surface defines a first opening for insertion of a head portion of a coupling terminal and a second opening for insertion of an axial end of a hydraulic hose.

8. The hydraulic sealing body according to claim 7 , wherein said perimeter wall has a thickness at the annular element greater than the thickness at the first and second openings.

9. The hydraulic sealing body according to claim 8 , wherein said annular element is arranged in an intermediate axial position between the first and the second openings.

10. The hydraulic sealing body according to claim 9 , wherein said annular element is made in one piece with said radially inner surface.

11. The hydraulic sealing body according to claim 8 , wherein said annular element is made in one piece with said radially inner surface.

12. The hydraulic sealing body according to claim 7 , wherein said annular element is arranged in an intermediate axial position between the first and the second openings.

13. The hydraulic sealing body according to claim 7 , wherein said annular element is made in one piece with said radially inner surface.

14. The hydraulic sealing body according to claim 6 , wherein said annular element is made in one piece with said radially inner surface.

15. The hydraulic sealing body according to claim 6 , comprising, on said radially inner surface, an annular groove engaged by an annular projection of said annular element.

16. The hydraulic sealing body according to claim 6 , wherein said annular element is made of rubber.

17. A kit for connecting a bicycle hydraulic hose to one of an actuator or a hydraulic connector, the kit comprising:
a coupling terminal comprising an insertion portion insertable in a hydraulic hose and a head portion arranged at an axial end of the insertion portion and projecting in a radially outer direction from said insertion portion;
a hydraulic sealing body comprising a radially inner surface defining a through-cavity and an annular element projecting in a radially inner direction from said radially inner surface; said annular element of the hydraulic sealing body comprising a first annular abutment surface configured to receive in contact relationship said head portion of the coupling terminal and a second annular abutment surface, axially opposite to the first, configured to receive in contact relationship said axial end of the hydraulic hose; and,
a clamping screw configured to contact said hydraulic sealing body.

18. A method for assembling a hydraulic hose assembly comprising:
providing a hydraulic sealing body having a through-cavity in which an annular element is arranged projecting in a radially inner direction comprising a first annular abutment surface, a second annular abutment surface axially opposite to the first annular abutment surface and a central hole;
providing a coupling terminal having a head portion and an insertion portion;
providing a hydraulic hose having an axial end;
inserting the coupling terminal in the through-cavity of the hydraulic sealing body so that the insertion portion crosses the central hole;
inserting the insertion portion of the coupling terminal in the axial end of the hydraulic hose so that the head portion of the coupling terminal contacts the first annular abutment surface of the hydraulic sealing body and the axial end of the hydraulic hose contacts the second annular abutment surface of the hydraulic sealing body.

Assignees

• Campagnolo Srl

Inventors

• Meggiolan Mario

Classifications

• B62L3/023 Primary

  acting on fluid pressure systems · CPC title

• F16L33/2076

  by plastic deformation · CPC title

• F16J15/025

  and with at least one flexible lip · CPC title

• F16L33/224

  a clamping ring being arranged between the threaded member and the connecting member · CPC title

• B60T17/043

  Brake line couplings, air hoses and stopcocks · CPC title