Title:
局部加圧装置及び局部加圧装置を備えた油圧式変形矯正装置
Document Type and Number:
Japanese Patent JP6792292
Kind Code:
B2
Abstract:
To easily perform high-accuracy protrusion amount adjustment even in a drafting ranger of a high drafting force and to prevent occurrence of damage or the like.SOLUTION: A local pressurization device comprises: a ball screw mechanism 3 consisting of a screw shaft 10 in which a ball groove 12 is provided, and a nut member 11 threaded to the screw shaft 10 via a ball 13 that is fitted into the ball groove 12; a drive part 4 for imparting a torque to the screw shaft 10 or the nut member 11 of the ball screw mechanism 3; a rod-shaped member 5 which is coupled to the screw shaft 10 or the nut member 11 of the ball screw mechanism 3 and provided in an axial direction of the screw shaft 10; and a brake mechanism 6 which brakes axial movement of the rod-shaped member 5 by radially pressurizing an outer surface of the rod-shaped member and then cancels the pressurization, thereby switching the rod-shaped member 5 in an axially freely movable manner.SELECTED DRAWING: Figure 1
Inventors:
Kazuhiro Nakauchi
Naofumi Maruyama
Koji Okamoto
Naofumi Maruyama
Koji Okamoto
Application Number:
JP2017164399A
Publication Date:
November 25, 2020
Filing Date:
August 29, 2017
Export Citation:
Assignee:
Asahi Kosei Co., Ltd.
International Classes:
F16H25/20; B21D1/06; B30B1/18; F16D63/00; F16D65/16; F16H25/22
Domestic Patent References:
| JP10005872A | ||||
| JP2002372116A | ||||
| JP2006105316A | ||||
| JP10098283A |
Attorney, Agent or Firm:
Mikio Yasuda