公开(公告)号：US20170266709A1

公开(公告)日：2017-09-21

申请号：US15505876

申请日：2015-04-21

Applicant: HONDA MOTOR CO., LTD.

Inventor： Atsushi FUJIHIRA ,  Takumi MATSUZAWA

IPC: B21D24/02 ,  B21D22/02

CPC classification number: 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).