Title:
CROSS BORDER PREVENTION DEVICE
Document Type and Number:
Japanese Patent JP2022109506
Kind Code:
A
Abstract:
To provide a cross border prevention device capable of preventing crossing of materials or muddy water generated at the site to a service lane from a construction work lane.SOLUTION: A ring-shaped engaging part 3 to be fitted a cone part of a trial cone 10 is attached to both ends in the longitudinal direction, a connecting rod 2 for connecting the pair of triangle cones 10 by fitting into the triangle cone 10 of the engaging part 3, and a gap waterproof sheet 4 attached to the connecting rod 2 so as to extend to a lower part over the entire area of the longitudinal direction are provided, the diameter of the engaging part 3 is set to be in a length to be fitted into the triangle cone 10 at a position where the lower end of the gap waterproof sheet 4 abuts on the road surface. Also, fitting height Wa for fitting the engaging part 3 into the trial cone 10 is set to be lower than the length Wb of one side of a base of the triangle cone 10.SELECTED DRAWING: Figure 2
Inventors:
HANABUSA MAKOTO
JOTATSU KOTA
OGURO YOSHIHIKO
OGURO TATSUKI
JOTATSU KOTA
OGURO YOSHIHIKO
OGURO TATSUKI
Application Number:
JP2021004858A
Publication Date:
July 28, 2022
Filing Date:
January 15, 2021
Export Citation:
Assignee:
OHBAYASHI CORP
YOSHINO SHOUN KK
YOSHINO SHOUN KK
International Classes:
E01F13/02
Attorney, Agent or Firm:
Jo Hori
Yukihiko Maejima
Yukihiko Maejima