Invention Grant
- Patent Title: Method for producing semispherical shoe for swash plate compressor and injection molding die
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Application No.: US15505884Application Date: 2015-08-21
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Publication No.: US10670074B2Publication Date: 2020-06-02
- Inventor: Takuya Ishii , Satoru Fukuzawa , Hirohisa Abe , Akihiro Oomori
- Applicant: NTN CORPORATION
- Applicant Address: JP Osaka
- Assignee: NTN CORPORATION
- Current Assignee: NTN CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Hedman & Costigan, P.C.
- Agent James V. Costigan; Kathleen A. Costigan
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@4c68af65 com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@54554d8d
- International Application: PCT/JP2015/073459 WO 20150821
- International Announcement: WO2016/027876 WO 20160225
- Main IPC: F16C29/02
- IPC: F16C29/02 ; F04B27/12 ; F04B27/10 ; B29C44/42 ; B29C45/00 ; B29C45/17 ; B29C45/56 ; F04B27/08 ; F16C33/20 ; B29K101/10

Abstract:
The present invention provides a method for producing a durable semispherical shoe which can be prevented from being subjected to seizure even in a dry lubrication state in which there is no lubricating oil at a start time of an operation of a swash plate compressor, can be restrained from deteriorating in its lubricating property due to generated frictional heat, and can be restrained from deteriorating in its strength at a production time and an injection molding die. A semispherical shoe (4), for a swash plate compressor, to be produced by the production method has a base material (5), consisting of a hard material, which has a hollow part along a central axis thereof and a resin layer, consisting of a resin composition, which is formed on a surface of a planar part, disposed on a periphery of the base member, which is to be subjected to sliding contact with the swash plate and on a surface of a spherical part, disposed on the periphery thereof, which is to be subjected to sliding contact with a piston. A resin-filled portion (8) where the resin composition is filled and an empty portion where the resin composition is not filled are formed in the hollow part of the base material. The resin-filled portion (8) and the resin layer are formed by injecting and filling the resin composition into a portion to be formed as the resin-filled portion (8) with the base material (5) being disposed inside a cavity (22) of the injection molding die.
Public/Granted literature
- US20170276175A1 METHOD FOR PRODUCING SEMISPHERICAL SHOE FOR SWASH PLATE COMPRESSOR AND INJECTION MOLDING DIE Public/Granted day:2017-09-28
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