Title:
PANEL ERECTING DEVICE WITH JIB HEIGHT ADJUSTING MECHANISM
Document Type and Number:
Japanese Patent JPH05179813
Kind Code:
A
Abstract:
PURPOSE: To simplify construction and reduce weight by moving a cylinder rod and a movable mast vertically to lower the minimum ground clearance, and also performing lifting of the mast and a load by one winch only.
CONSTITUTION: A lower pulley 33 is installed at the bottom of a movable mast 3 at the top of which a vertically movable cylinder rod 4 is provided, and a which 9 is operated in a state that a hook 7 is raised up to lift the movable mast 3. When the winch 9 is operated with a stopper 34 inserted into fixing holes 23 of a fixed mast 2 to unable lifting of the movable mast 3, the hook 7 is moved vertically to enable lifting of a load.
Inventors:
YAMAZAKI SHINOBU
YANAGIDA RYUICHI
KUNIMOTO MASAHARU
TANABE SHIGERU
MATSUDA TOSHIO
ANURA SUNAO
YOKOYAMA HIROYUKI
YANAGIDA RYUICHI
KUNIMOTO MASAHARU
TANABE SHIGERU
MATSUDA TOSHIO
ANURA SUNAO
YOKOYAMA HIROYUKI
Application Number:
JP35925691A
Publication Date:
July 20, 1993
Filing Date:
December 27, 1991
Export Citation:
Assignee:
SHIMIZU CONSTRUCTION CO LTD
MATSUDA ENG KK
MATSUDA ENG KK
International Classes:
B66C23/20; E04G21/16; (IPC1-7): B66C23/20; E04G21/16
Attorney, Agent or Firm:
Akimoto Teruo