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Title:
HOLLOW EXTENSIBLE BOOM
Document Type and Number:
Japanese Patent JP2005195066
Kind Code:
A
Abstract:

To provide a hollow extensible boom in which no structure exists in a hollow part surrounded by a member, equipment can be accommodated in the hollow part and hollow parts continuous in an axial direction can be utilized as a passage.

The hollow extensible boom is equipped with a plurality of annular spacers 12 having rigidity, a plurality of vertical straight members 13 by which a plurality of spacers 12 are coupled to one another in an axial direction with a prescribed space and which is elastically deformed between a developing state of being linearly extended in the axial direction and a contracted state of being contracted by bending along a contour of the spacer 12, a stretching member 14 which is diagonally provided to a coupling part between the adjacent spacer 12 and the adjacent vertical straight member 13 and at least whose one side is elastically extensible in an axial direction, and a hollow part 15 surrounded by the vertical straight member 13 and the stretching member 14.


Inventors:
NAKASUGA SHINICHI
NAGAI MASATAKA
TANAKA HIDEYUKI
NAGASHIMA TAKASHI
Application Number:
JP2004000597A
Publication Date:
July 21, 2005
Filing Date:
January 05, 2004
Export Citation:
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Assignee:
NAKASUGA SHINICHI
SAKURA TECHNOLOGY DEV CO LTD
NAGAI MASATAKA
TANAKA HIDEYUKI
NAGASHIMA TAKASHI
International Classes:
B64G1/22; H01Q1/10; H01Q1/20; H01Q1/28; F16S3/00; (IPC1-7): F16S3/00; B64G1/22; H01Q1/10; H01Q1/20; H01Q1/28
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto