Title:
歩車道境界ブロック
Document Type and Number:
Japanese Patent JP6830641
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a boundary block between a roadway and a sidewalk that enhances drainage efficiency on the sidewalk side and the roadway side and improves durability and workability.SOLUTION: A boundary block between a roadway and a sidewalk includes a metallic cover part 20 for partially covering a block body. The block body includes a first body part 12 and a second body part 13 protruding and positioned facing upward in a vertical direction and an opening 14 cut out in a recessed form in the vertical direction and formed to penetrate. Cover holding areas 12a, 13a are recessed in steps at an edge closer to the opening, the cover holding areas having first bolt fitting holes 12b, 13b formed on a top surface area. A top surface wall 20a and right and left side surface walls 20b of the cover part have a wall thickness sufficient to be housed in the steps of the cover holding area. In a top surface contacting area of the cover part, second bolt fitting holes 20c, 20c that communicate coaxially with the first bolt fitting holes are provided, while a communicating hole 60 is formed on a side surface part.SELECTED DRAWING: Figure 17
Inventors:
Takashi Sasaki
Kazumi Adachi
Hirotoshi Masuda
Kazumi Adachi
Hirotoshi Masuda
Application Number:
JP2016138242A
Publication Date:
February 17, 2021
Filing Date:
July 13, 2016
Export Citation:
Assignee:
Nikon Corporation
International Classes:
E01C11/22; E03F5/046
Domestic Patent References:
| JP2007100506A | ||||
| JP2002061105A | ||||
| JP2007063887A | ||||
| JP2005336951A |
Attorney, Agent or Firm:
Yoshimi Kobayashi