Title:
【発明の名称】狭隘部作業用伸縮構造体
Document Type and Number:
Japanese Patent JP3082833
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an expandable structure which is folded when it passes a narrow place so that various works at a narrow part are practicable, and moves with a high stroke when it enters the interior. SOLUTION: An expandable structure 30 for a work at a narrow part comprises two sets of down telescopic cylinders 40 arranged in parallel to each other; and two sets of up telescopic cylinders 60 arranged in parallel to each other. The down telescopic cylinder 40 comprises a central shaft 41; cylinders 42-46 arranged in a manner to surround the central shaft 41; and a flange 49 rotatably attached to the tip of the central shaft 41. The up telescopic cylinder 60 comprises a central shaft 61; and cylinders 63-67 to surround the central shaft 61. Two central shafts 61 are intercoupled at the ends on one side thereof through a flange 69 and the outermost cylinder 63 is coupled to the flange 49 through a ball bearing 47.
Inventors:
Shigeo Hashimoto
Hidekazu Inui
Hidekazu Inui
Application Number:
JP15717596A
Publication Date:
August 28, 2000
Filing Date:
June 18, 1996
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
G21C19/02; B08B9/02; B08B9/032; B25J18/02; F15B15/16; F16J10/00; G21F9/28; (IPC1-7): F15B15/16; B08B9/032; B25J18/02; F16J10/00; G21C19/02; G21F9/28
Domestic Patent References:
| JP4858273A | ||||
| JP7181285A | ||||
| JP5256903U | ||||
| JP198304U |
Attorney, Agent or Firm:
Mitsuteru Soga (2 outside)