Title:
COVER STRUCTURE OF GROOVE PIT AND MAINTENANCE METHOD OF GROOVE PIT
Document Type and Number:
Japanese Patent JP2019057964
Kind Code:
A
Abstract:
To easily attach and detach a cover plate during maintenance after installation while not providing a step and a gap in the periphery of a groove pit and the cover plate.SOLUTION: A groove pit 20 constructed lower than a sub-floor surface 12, a receiving frame 22 provided on an opening 21 of the groove pit 20, a cover plate 30 fitted in the receiving frame 22, a first surface layer material 32 pasted onto the sub-floor surface 12, a second surface layer material 33 pasted onto the top face 31 of the cover plate 30, and a filler 34 filled between an upper end face 24 of the receiving frame 22 and the first surface layer material 32 and the second surface layer material 33 are comprised. A floor surface 11 consisting of the first surface layer material 32, the second surface layer material 33, and the filler 34 are made substantially flat.SELECTED DRAWING: Figure 1
Inventors:
YAMASHITA TETSUKAZU
Application Number:
JP2017179583A
Publication Date:
April 11, 2019
Filing Date:
September 19, 2017
Export Citation:
Assignee:
HIRANO CO LTD
International Classes:
H02G3/38; E04F17/08
Attorney, Agent or Firm:
Sakaoka