公开(公告)号：US20170211560A1

公开(公告)日：2017-07-27

申请号：US15328204

申请日：2015-07-22

Applicant: NTN CORPORATION

Inventor： Takuya ISHII ,  Satoru FUKUZAWA ,  Hirohisa ABE ,  Akihiro OOMORI

IPC: F04B27/10

Abstract: It is an object of the present invention to provide a 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 the start time of an operation of a swash plate compressor, is excellent in its sliding contact property and load resistance, does not deteriorate in its lubricating property due to generated frictional heat, does not subject a resin layer to peeling from a base material, and ensures sufficient durability. It is another object of the present invention to provide a swash plate compressor in which a lubricating film is not formed on a sliding contact surface of the swash plate and that of a piston owing to the use of the semispherical shoe. A semispherical shoe (4) is subjected to sliding contact with the swash plate of the swash plate compressor and the piston thereof. Abase material (5) consists of a metallic member. A resin layer (6b) is formed on a surface of a planar part (4b) to be subjected to sliding contact with the swash plate. A resin layer (6a) is formed on a surface of a spherical part (4a) to be subjected to sliding contact with the piston. The resin layer (6a) and the resin layer (6b) are integral with each other. At least one portion of the base material (5) is not covered with the resin layer (6) and is exposed.

公开(公告)号：US20190308351A1

公开(公告)日：2019-10-10

申请号：US16466636

申请日：2017-11-24

Applicant: NTN CORPORATION

Inventor： Satoru FUKUZAWA ,  Hirohisa ABE

IPC: B29C45/38 ,  F16C17/04 ,  F16H1/28 ,  F16H57/08

Abstract: To provide a synthetic resin thrust plate having usable plane accuracy while eliminating correction of the plane shape thereof with a hot-plate press and a method for manufacturing the same. A synthetic resin thrust plate 1 is a hollow disc-shaped, synthetic resin thrust plate having a plurality of radial grooves 2 and 3 at equiangular intervals in terms of a disc central angle on both thrust faces 1a and 1b, respectively. The grooves 2 on one thrust face 1a and the grooves 3 on another thrust face 1b are the same in number. The grooves 2 on the one thrust face 1a and the grooves 3 on the other thrust face 1b are arranged so as not to overlap with each other in a circumferential direction. In particular, the grooves 2 on the one thrust face 1a and the grooves 3 on the other thrust face 1b are arranged in a staggered manner so as to have an angular deviation of ½ of an angular interval between the grooves adjacent to each other on the same thrust face in terms of the disc central angle.

公开(公告)号：US20170276175A1

公开(公告)日：2017-09-28

申请号：US15505884

申请日：2015-08-21

Applicant: NTN CORPORATION

Inventor： Takuya ISHII ,  Satoru FUKUZAWA ,  Hirohisa ABE ,  Akihiro OOMORI

IPC: F16C29/02 ,  F04B27/08 ,  B29C45/56 ,  B29C44/42 ,  B29C45/17 ,  B29C45/00 ,  F16C33/20 ,  F04B27/10

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.

公开(公告)号：US20160158982A1

公开(公告)日：2016-06-09

申请号：US14909076

申请日：2014-07-28

Applicant: NTN CORPORATION

Inventor： Hirohisa ABE ,  Satoru FUKUZAWA

IPC: B29C45/38 ,  C08J5/00 ,  B29C45/27

Abstract: A method for making a synthetic resin injection molded body that is gate-cut by die opening after injection molding by means of a pinpoint gate 9. A cavity 10 is filled with a molten resin, from a first sprue 6 that is provided coaxially with the injection direction of the molten resin, through a runner 7 that is provided in the perpendicular direction to the first sprue 6, via a pinpoint gate 9 that is formed on a tip part of a second sprue 8 that is provided horizontally to the injection direction of the molten resin, from a gate port 9a of the pinpoint gate 9 formed on a cavity plane that is in parallel with the die opening direction; after cooling, gate cutting is performed by means of die opening; and a molded body is taken out in an ejection step.

Abstract translation: 一种制造合成树脂注射成型体的方法，该合成树脂注射成型体通过精密注入口9在注射成型后通过模具开口进行浇口切割。空腔10由熔融树脂填充，该第一浇道6与 通过在与第一直浇道6的垂直方向设置的流道7上形成在第二浇口8的顶端部分上的针尖浇口9，该第二浇道8的水平方向与喷射方向 来自形成在与模具打开方向平行的空腔平面上的精细点浇口9的浇口9a的熔融树脂; 冷却后，通过开模进行闸板切割; 并且在喷射步骤中取出成型体。