Title:
目地板材
Document Type and Number:
Japanese Patent JP6779058
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a joint board in which there are provided notches arranged left and right, and up and down in a joint board, and including a slope for taking concrete, and therefore the joint material and the concrete are coordinated through connection of both members even for the expansion and contraction of the concrete, similarly the structure is effective in relaxation of the expansion and/or contraction of the concrete, and thereby a conventional problem is solved.SOLUTION: A joint board of the present invention is provided for use in a joint of a median strip. The joint board includes: a first long panel serving as a core; and at least four pieces of second short board to fifth board arranged left and right, and up and down provided with notches including a slope (notch inclination angle becomes a substantially 70° inclination angle from a base point to a cut end point) from an outside "base point" toward the inside "cut end point" that are provided at both surface sides of this first long panel and enable anti-grass and tie-stick function. The notch slope is formed in the facing relationship. A weed control effect and peeling suppression of the concrete are provided.SELECTED DRAWING: Figure 1-1
Inventors:
Ishikawa Shigenori
Application Number:
JP2016140206A
Publication Date:
November 04, 2020
Filing Date:
July 15, 2016
Export Citation:
Assignee:
Ishikawa Shigenori
International Classes:
E01C11/10; E01H11/00
Domestic Patent References:
| JP4138408U | ||||
| JP60130803U | ||||
| JP2004169544A | ||||
| JP2008280735A |
Attorney, Agent or Firm:
Kimura Mitsuru
Kazunori Takenaka
Yasushi Sakakibara
Kazunori Takenaka
Yasushi Sakakibara