Swash plate

Patent metadata

Field	Value
Publication number	US-9528504-B2
Application number	US-201314387867-A
Country	US
Kind code	B2
Filing date	Mar 25, 2013
Priority date	Mar 26, 2012
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

The outer periphery of the outer part of a substrate is a chamfer, and the outer part of the substrate is covered by a resin film layer. The thickness of the resin film layer at the chamfer is thicker than the locations radially further inwards from said chamfer. The surface of the resin film layer on the outer peripheral edge of the outer part is coplanar with the surface of the resin film layer further inwards. These locations act as the sliding surface (the surface of the swash plate) that slides on a shoe, and compared with conventional techniques, because the resin film layer in the outer peripheral edge is thick, attrition of the portion being pressed against the shoe is suppressed. For that reason, the outer peripheral edge of the substrate and the vicinity thereof are prevented from being exposed, and seizure of the swash plate can be prevented.

First claim

The invention claimed is:

1. A swash plate comprising:
a substrate formed in a disk shape and with a chamfered part on an outer peripheral edge of an end surface; and
a resin film layer arranged to cover an end surface of the substrate and formed beyond an outer peripheral edge of an end surface serving as the chamfered part to cover up to the chamfered part, a flat surface of the resin film layer serving as a sliding surface sliding with a shoe;
wherein
the resin film layer in the chamfered part is thicker than the chamfered part and thicker than the resin film layer in a radial inner direction side, the outer peripheral edge of the flat surface of the resin film layer serving as a sliding surface is located above the chamfered part serving as a radial outer direction than an outer peripheral edge of the end surface of the substrate, and when a thickness of the resin film layer at the outer peripheral edge of the flat surface of the resin film layer is given as T 2 and a thickness of the resin film layer at the outer peripheral edge on the end surface of the substrate is given as T 1 , the thickness T 2 is set larger than the thickness T 1 .

2. The swash plate according to claim 1 , wherein a surface of the resin film layer at the chamfered part and a surface of the resin film layer at the outer peripheral edge of the end surface become coplanar, and a surface of the resin film layer at the chamfered part becomes the sliding surface.

3. The swash plate according to claim 1 or claim 2 , wherein the thickness T 2 is set to 4˜100 μm, and the thickness T 1 is set to 2˜50 μm.

Assignees

• Taiho Kogyo Co Ltd

Inventors

• Shibata Masato
• Yamane Kyohei
• Goto Shingo

Classifications

• F04B27/08 Primary

  having cylinders coaxial with, or parallel or inclined to, main shaft axis · CPC title

• F05C2253/20

  Resin · CPC title

• F04B27/0886

  Piston shoes · CPC title

• F05C2253/12

  Coating · CPC title

• F04B27/086 Primary

  swash plate · CPC title