Title:
DIE CUSHION DEVICE
Document Type and Number:
Japanese Patent JP2004066307
Kind Code:
A
Abstract:
To provide a die cushion device capable of easily adjusting the timing for changing a die cushion ability.
A spool 30 is disposed in a cylinder 10 of the die cushion device 1. Since this spool 30 can be rotated by an adjusting means 2 from the outside of the cylinder 10, and the relative position L1 against the cylinder 10 can be changed and the timing of inflow and outflow of a fluid can be adjusted, the timing for changing the die cushion ability can be easily adjusted.
Inventors:
Nishihara, Yoshitaka
Sunada, Masahide
Matsuzawa, Yoshio
Sunada, Masahide
Matsuzawa, Yoshio
Application Number:
JP2002000230268
Publication Date:
March 04, 2004
Filing Date:
August 07, 2002
Export Citation:
Assignee:
KOMATSU LTD
TECHNOL EIGHT CO LTD
KOMATSU SANKI KK
TECHNOL EIGHT CO LTD
KOMATSU SANKI KK
International Classes:
F15B15/00; B21D24/02; F15B15/14; F15B15/22; F15B15/00; B21D24/00; (IPC1-7): B21D24/02; F15B15/00; F15B15/14; F15B15/22