Title:
ELEVATION TYPE JACK
Document Type and Number:
Japanese Patent JP3194501
Kind Code:
B2
Abstract:
PURPOSE: To provide a small-sized jack having its structure simplified, and capable of performing its rising and falling freely.
CONSTITUTION: A pair of upper and lower supports 3, 4 are engaged with a stay 1 on which pin holes 2 are formed at a fixed distance so as to be slid freely in its axial direction and these supports 3, 4 are connected to each other by extension cylinders 5. And the elevation type jack is provided with hyudraulic units 6 integrally joined to the extension cylinders 5, for extending/contracting the extension cylinders 5 and lock pins to be slid into/from respective supports 3, 4 according to signal.
Inventors:
Tadao Ishikawa
Application Number:
JP33446692A
Publication Date:
July 30, 2001
Filing Date:
December 15, 1992
Export Citation:
Assignee:
Kayaba Industry Co., Ltd.
International Classes:
B66F1/02; B66F1/08; E04B1/35; E04G1/20; E04G21/16; (IPC1-7): B66F1/08; E04G1/20
Domestic Patent References:
| JP6151497A |
Attorney, Agent or Firm:
Masaki Goto (1 person outside)