Title:
【発明の名称】クッションピン選択装置
Document Type and Number:
Japanese Patent JP2745739
Kind Code:
B2
Abstract:
PURPOSE:To prevent a cushion pin from an error of arrangement based on unnatural mistake by providing a vertically movable pin lifter under a bolster plate and providing an elongation and contraction device capable of mounting the cushion pin and moving a lock pin vertically on this upper surface. CONSTITUTION:There are provided recessed parts 14 engaging with a pin hole 8 of a bolster plate 4. Stopper pins 21 are provided so that their top parts can be projected or pulled freely in the radial direction. A block pin 15 is lifted into the axial part of the cushion pin 7 so that the lock pin 15 freely moves vertically. Cam parts 22 capable of engaging with the base end part of the stopper pin 21 are formed on the upper end part of the lock pin 15. A vertically movable pin lifter 19 is provided under the bolster plate 4. The elongation and contraction device 29 capable of mounting the cushion pin 7 and moving the lock pin 15 vertically is provided on the upper surface of this pin lifter. Thus, the working efficiency can be improved.
More Like This:
Inventors:
Yoshio Mori
Application Number:
JP29058689A
Publication Date:
April 28, 1998
Filing Date:
November 08, 1989
Export Citation:
Assignee:
Ishikawajima Harima Heavy Industries Co., Ltd.
International Classes:
B30B15/02; B21D24/02; B21D37/04; (IPC1-7): B30B15/02; B21D24/02; B21D37/04
Domestic Patent References:
| JP241799A | ||||
| JP2127998A | ||||
| JP623219U | ||||
| JP5119188B2 |
Attorney, Agent or Firm:
Tsunemitsu Yamada (1 person outside)