Title:
軸受用保持器
Document Type and Number:
Japanese Patent JP6471813
Kind Code:
B2
Abstract:
The resin injection gate (51) is disposed at the pillar part (20). When the bearing cage (1) is divided into first and second regions (S1, S2) by an imaginary line (M) connecting the resin injection gate (51) and a weld line (W) to be formed at a position radially facing the resin injection gate (51), a resin reservoir (40) that can store therein the melted resin is formed at the pillar part (20) in only one of the regions (S1, S2). A circumferential distance between the resin reservoir (40) and the weld line (W) is smaller than a circumferential distance between the resin reservoir (40) and the resin injection gate (51). A cross-sectional area of a communicating part (42) of the resin reservoir (40), which is configured to communicate with the pillar part (20), is equal to or less than a quarter of a cross-sectional area of the resin injection gate (51).
Inventors:
Kuramoto Yoshikazu
Shigeaki Aihara
Takayuki Hiramoto
Shigeaki Aihara
Takayuki Hiramoto
Application Number:
JP2017567925A
Publication Date:
February 20, 2019
Filing Date:
February 19, 2016
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
B29C45/27; F16C33/41; F16C33/44
Domestic Patent References:
| JP6299529B2 | ||||
| JP8197649A | ||||
| JP2012087890A | ||||
| JP2002301742A |
Attorney, Agent or Firm:
Patent business corporation glory patent office