Title:
サーボ制御の液圧ピストンで使用するためのサーボ制御の一体型の止め具
Document Type and Number:
Japanese Patent JP2005526942
Kind Code:
A
Abstract:
Apparatus, and an accompanying method for use therein, that utilizes working and stopping servo-controlled hydraulic pistons wherein the stopping piston acts as a controlled mechanical stop for the working piston. Both pistons are spaced apart along and coaxially arranged around a common shaft, with each piston moving in a separate cylinder. The working piston is securely attached to the shaft, while the shaft moves through a central, longitudinal bore of the stopping piston. The stopping piston effectively "floats" in its cylinder and produces a greater force than the working piston. A radially extending stop element, situated on the shaft, has a surface configured to abuttingly engage with a complementary surface on the stopping piston such that the stopping piston, once appropriately positioned, controllably stops continued movement of the working piston in a very short time and over a very short distance with little strain induced in the apparatus.
Inventors:
Ferguson, Hugo S.
Chen, Wei Chen
Chen, Wei Chen
Application Number:
JP2004507796A
Publication Date:
September 08, 2005
Filing Date:
May 16, 2003
Export Citation:
Assignee:
Dynamic Systems Incorporated
International Classes:
F15B9/08; F15B3/00; F15B15/24; G01N3/36; G01N3/00; (IPC1-7): F15B15/24; F15B3/00; F15B9/08
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai