Invention Application
- Patent Title: CUSHION PIN
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Application No.: US15505876Application Date: 2015-04-21
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Publication No.: US20170266709A1Publication Date: 2017-09-21
- Inventor: Atsushi FUJIHIRA , Takumi MATSUZAWA
- Applicant: HONDA MOTOR CO., LTD.
- Priority: JP2014-171317 20140826
- International Application: PCT/JP2015/062052 WO 20150421
- Main IPC: B21D24/02
- IPC: B21D24/02 ; B21D22/02

Abstract:
Provided is a cushion pin which applies sufficient supporting force to a blank holder of a press molding apparatus even if the number of cushion pins and an arrangement region are restricted. A cushion pin (1A) has a cylindrical main body section including a plurality of cylindrical members (2) and annular members (3). The cylindrical members (2) are arranged in series in an axial direction, and the annular members (3) are disposed between the adjacent cylindrical members (2). A rod member (4) and a coil spring (5) are disposed in each the spring chambers of the main body section. The rod member (4) includes a rod-shaped part (4b) and a flange part (4a). The rod-shaped part (4b) has a diameter allowing the rod-shaped part (4b) to slidably penetrate through an opening (3a) of the annular member (3). The coil spring (5) biases the flange part (4a).
Public/Granted literature
- US10603708B2 Cushion pin Public/Granted day:2020-03-31
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