Title:
GRATING
Document Type and Number:
Japanese Patent JP2017155530
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a grating capable of improving walking performance on the grating by preventing looseness of a main bar to a cross bar and opening of an interval between the main bars thereby.SOLUTION: In a grating 10 having a plurality of main bars 20 arranged in parallel and a cross bar 40 inserted into an insertion hole 23 provided in the plurality of respective main bars 20, the cross bar 40 comprises a slit 41 fittable to an inner peripheral wall 24 of the insertion hole 23 and molded so that its opening edge part 42 becomes parallel to the insertion hole 23 of the main bars 20, and is fixed to the main bar 20 by being plastically deformed in a state of fitting the slit 41 to the inner peripheral wall 24 of the insertion hole 23.SELECTED DRAWING: Figure 2
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Inventors:
IWAMOTO TAKAHIRO
Application Number:
JP2016041643A
Publication Date:
September 07, 2017
Filing Date:
March 04, 2016
Export Citation:
Assignee:
DAIKEN CO LTD
International Classes:
E03F5/06; B21D39/00; B21D47/00
Attorney, Agent or Firm:
Morimoto International Patent Office