Hydraulic device

Patent metadata

Field	Value
Publication number	US-11221027-B2
Application number	US-202016877849-A
Country	US
Kind code	B2
Filing date	May 19, 2020
Priority date	May 19, 2020
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

A hydraulic device is basically provided with a cylinder housing and a reservoir. The cylinder housing includes a cylinder bore. The reservoir is configured to be in fluid communication with the cylinder bore. The reservoir includes a reservoir tank and a lid slidably attached to the reservoir tank.

First claim

What is claimed is:

1. A hydraulic device comprising:
a cylinder housing including a cylinder bore; and
a reservoir configured to be in fluid communication with the cylinder bore, the reservoir including a reservoir tank and a lid slidably attached to the reservoir tank, the lid slidably covering an exterior opening of the reservoir tank that opens to an exterior of the hydraulic device, the exterior opening facing the exterior of the hydraulic device in an opening direction, the lid being slidable along the reservoir tank in a sliding direction that is perpendicular to the opening direction.

2. The hydraulic device according to claim 1 , wherein
the reservoir tank and the lid define a guiding structure to slidably guide the lid with respect to the reservoir tank.

3. A hydraulic device comprising:
a cylinder housing including a cylinder bore; and
a reservoir configured to be in fluid communication with the cylinder bore, the reservoir including a reservoir tank and a lid slidably attached to the reservoir tank, the reservoir tank and the lid defining a guiding structure to slidably guide the lid with respect to the reservoir tank,
the guiding structure including
a guiding protrusion provided to one of the reservoir tank and the lid, and
a guiding recess provided to the other of the reservoir tank and the lid to engage with the guiding protrusion.

4. The hydraulic device according to claim 3 , wherein
the guiding protrusion is provided to the lid,
the guiding protrusion includes a first guiding protrusion, and a second guiding protrusion facing toward the first guiding protrusion,
the guiding recess is provided to the reservoir tank, and
the guiding recess includes a first guiding recess configured to engage the first guiding protrusion, and a second guiding recess configured to engage the second guiding protrusion.

5. The hydraulic device according to claim 1 , wherein
the cylinder bore defines a cylinder axis extending in an axial direction of the cylinder bore, and
the lid is slidable in a sliding direction non-perpendicular to the axial direction.

6. The hydraulic device according to claim 1 , further comprising
a positioning member configured to position the lid to the reservoir tank.

7. The hydraulic device according to claim 6 , wherein
the positioning member includes a pin press-fitted to at least one of the lid and the reservoir tank.

8. The hydraulic device according to claim 7 , wherein
the pin is press-fitted to both the lid and the reservoir tank.

9. The hydraulic device according to claim 1 , wherein
the reservoir is provided to the cylinder housing.

10. A hydraulic device comprising
a cylinder housing including a cylinder bore; and
a reservoir configured to be in fluid communication with the cylinder bore, the reservoir including a reservoir tank and a lid slidably attached to the reservoir tank, the reservoir being provided to the cylinder housing,
the cylinder housing having a bleeding part configured to be in fluid communication with the cylinder bore, and
the reservoir having a same height as the bleeding part with respect to the cylinder housing in a direction perpendicular to an axial direction of the cylinder bore.

11. The hydraulic device according to claim 1 , wherein
the reservoir includes a diaphragm arranged to define a reservoir chamber between the reservoir tank and the diaphragm.

12. The hydraulic device according to claim 11 , wherein
the lid has an opening configured to at least partly expose the diaphragm to atmosphere.

13. The hydraulic device according to claim 12 , wherein
the cylinder bore defines a cylinder axis extending in an axial direction of the cylinder bore, and
the opening faces in the axial direction of the cylinder bore.

14. A hydraulic device comprising
a cylinder housing including a cylinder bore; and
a reservoir configured to be in fluid communication with the cylinder bore, the reservoir including a reservoir tank and a lid slidably attached to the reservoir tank, the reservoir further including a diaphragm arranged to define a reservoir chamber between the reservoir tank and the diaphragm, the reservoir further including an intermediate member arranged between the lid and the diaphragm.

15. The hydraulic device according to claim 14 , wherein
the diaphragm and the intermediate member define a positioning structure to position the diaphragm and the intermediate member relative to one another.

16. The hydraulic device according to claim 15 , wherein
the positioning structure includes
a positioning protrusion provided to one of the diaphragm and the intermediate member, and
a positioning recess provided to the other of the diaphragm and the intermediate member to engage with the positioning protrusion.

17. The hydraulic device according to claim 16 , wherein
the positioning protrusion is circumferentially provided along an outer edge of the one of the diaphragm and the intermediate member, and
the positioning recess is circumferentially provided along an outer edge of the other of diaphragm and the intermediate member.

18. The hydraulic device according to claim 14 , wherein
the intermediate member is made of a resin material.

19. The hydraulic device according to claim 1 , further comprising
a piston arranged in the cylinder bore to define a cylinder chamber between the cylinder bore and the piston.

20. The hydraulic device according to claim 19 , further comprising
an operating member operatively coupled to the piston.

Assignees

• Shimano Kk

Inventors

• Nishikawa Yusuke

Classifications

• B60T11/18

  Connection thereof to initiating means · CPC title

• B62K23/06 Primary

  Levers · CPC title

• B60T11/22

  characterised by being integral with reservoir · CPC title

• F15B1/26

  Supply reservoir or sump assemblies · CPC title

• B60T11/16

  Master control, e.g. master cylinders (master cylinders associated with vacuum boosters B60T13/565) · CPC title