Swash plate bearing

Patent metadata

Field	Value
Publication number	US-11248593-B2
Application number	US-201916969597-A
Country	US
Kind code	B2
Filing date	Feb 12, 2019
Priority date	Feb 14, 2018
Publication date	Feb 15, 2022
Grant date	Feb 15, 2022

Abstract

A swash plate bearing is disclosed. The swash plate bearing may have an arcuate cage member having at least one flange and a plurality of rolling elements rotatably coupled to the at least one flange. A coupling seat extends laterally from the at least one flange, the coupling seat may have an insertion hole. A link member may be rotatably coupled to the cage member, the link member having a central portion positioned between a first terminal portion and a second terminal portion. A first stem connects the central portion to the first terminal portion and a second stem connects the central portion to the second terminal portion. The central portion is positioned in the insertion hole.

First claim

What is claimed is:

1. A swash plate bearing comprising:
an arcuate cage member having at least one flange and a plurality of rolling elements rotatably coupled to the at least one flange, wherein a coupling seat extends laterally from the at least one flange, the coupling seat having an insertion hole;
a link member rotatably coupled to the cage member, the link member having a central portion positioned between a first terminal portion and a second terminal portion, wherein a first stem connects the central portion to the first terminal portion and a second stem connects the central portion to the second terminal portion, and wherein the central portion is positioned in the insertion hole; and
a pair of teeth axially extending from a rim of the coupling seat, wherein the teeth are mutually diametrically opposed on the rim and offset from the at least one flange.

2. The swash plate bearing of claim 1 , wherein the coupling seat is annular and the insertion hole is centrally positioned.

3. The swash plate bearing of claim 1 , wherein a diameter of the coupling seat is greater than a width of the at least one flange.

4. The swash plate bearing of claim 1 , wherein opposite base portions of the coupling seat extend transversely over the at least one flange.

5. The swash plate bearing of claim 1 , wherein the insertion hole extends from the aperture and wherein the inner surfaces of the teeth are flush with a wall of the insertion hole.

6. The swash plate bearing of claim 1 , wherein the central portion is configured as a cylinder having a first cylinder end and a second cylinder end.

7. The swash plate bearing of claim 6 , wherein the first and second stems are spaced away from the first cylinder end.

8. The swash plate bearing of claim 1 , wherein a length of the first stem is shorter relative to the second stem.

9. The swash plate bearing of claim 1 , wherein the first terminal portion is configured as a sphere and the second terminal portion is configured as a sphere.

10. The swash plate bearing of claim 1 , further comprising a second flange, wherein at least one tab connects the second flange to the at least one flange, wherein a plurality of arms extends laterally between the at least one flange and the second flange, and wherein the rolling elements are interspersed between the plurality of arms.

11. A variable displacement hydraulic device comprising at least one swash plate bearing of claim 1 , wherein the first terminal portion is coupled to a swash plate and the second terminal portion is coupled to a housing.

12. The variable displacement hydraulic device of claim 11 , further comprising a bearing race member, the cage member being movably coupled to the bearing race member.

13. A swash plate bearing comprising:
an arcuate cage member having at least one flange and a plurality of rolling elements rotatably coupled to the at least one flange, wherein a coupling seat extends laterally from the at least one flange, the coupling seat having an insertion hole; and
a link member rotatably coupled to the cage member, the link member having a central portion positioned between a first terminal portion and a second terminal portion, wherein a first stem connects the central portion to the first terminal portion and a second stem connects the central portion to the second terminal portion, wherein the central portion is positioned in the insertion hole, wherein the central portion is configured as a cylinder having a first cylinder end and a second cylinder end, and wherein the first and second stems are spaced away from the first cylinder end.

14. The swash plate bearing of claim 13 , wherein the coupling seat is annular and the insertion hole is centrally positioned.

15. The swash plate bearing of claim 13 , wherein a diameter of the coupling seat is greater than a width of the at least one flange.

16. The swash plate bearing of claim 13 , wherein opposite base portions of the coupling seat extend transversely over the at least one flange.

17. The swash plate bearing of claim 13 , further comprising a pair of teeth axially extending from a rim of the coupling seat.

18. The swash plate bearing of claim 13 , wherein a length of the first stem is shorter relative to the second stem.

19. The swash plate bearing of claim 13 , wherein the first terminal portion is configured as a sphere and the second terminal portion is configured as a sphere.

20. The swash plate bearing of claim 13 , further comprising a second flange wherein at least one tab connects the second flange to the at least one flange, wherein a plurality of arms extends laterally between the at least one flange and the second flange and wherein the rolling elements are interspersed between the plurality of arms.

Assignees

• Dana Motion Sys Italia Srl

Inventors

• Gambuzzi David
• Annovi Simone
• Comodi Paolo
• Fontanesi Luca

Classifications

• F01B3/0073

  swash plate bearing means or driving or driven axis bearing means · CPC title

• F04B1/2085 Primary

  Bearings for swash plates or driving axles · CPC title

• F16C19/361

  with cylindrical rollers · CPC title

• F04B1/148

  Bearings therefor · CPC title

• F16C33/306

  Means to synchronise movements · CPC title