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Patent Searching and Data


Title:
PNEUMATIC ROOF GATE
Document Type and Number:
Japanese Patent JP2005105554
Kind Code:
A
Abstract:

To provide a pneumatic roof gate capable of preventing reception of damage, by largely keeping a bending radius of a bending tip part of a dead-end belt, in rising-up and falling-down.

Round bar steel having the proper thickness is welded to and installed on the tip of a steel plate door body in a position of being coincident between an upstream side surface of the steel plate door body and a surface of the round bar steel, to thereby expand an interval between an upper surface of base concrete and a downstream surface of the steel plate door body.


Inventors:
IIDA AKIO
IIDA YOSHIO
Application Number:
JP2003000336797
Publication Date:
April 21, 2005
Filing Date:
September 29, 2003
Export Citation:
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Assignee:
IIDA AKIO
IIDA YOSHIO
International Classes:
E02B7/20; E02B7/44; (IPC1-7): E02B7/20; E02B7/44
Attorney, Agent or Firm:
土橋 博司