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Patent Searching and Data


Title:
SIGN POST
Document Type and Number:
Japanese Patent JP2018071242
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a sign post having excellent restorability after the pole has been deformed, and which can maintain an erected state for a long time.SOLUTION: A flexible pole is provided with: a cylindrical outer column; a cylindrical first inner column stored inside thereof; and a cylindrical second inner column arranged on the farther inside and stored in the outer column. The inner diameter of the first inner column, which is undetachably provided on a base, is formed to be 1.5 mm or greater than the outer diameter of the second inner column. When the outer column is deformed, the first inner column and the second inner column support the outer column inside thereof, allowing recovery from the deformation; thus, the erected state of the outer column can be well maintained. As the inner diameter of the first inner column is formed to be 1.5 mm or greater then the outer diameter of the second inner column, damage to the columns can be reduced by suppressing the friction between the inner peripheral surface of the first inner column and the outer peripheral surface of the second inner column when the first inner column and the second inner column are deformed so as to be bent by the external force received by the outer column.SELECTED DRAWING: Figure 4

Inventors:
HIRANO KAZUYA
TAKAGI KAZUMASA
TAKAMURO KAZUTOSHI
Application Number:
JP2016213989A
Publication Date:
May 10, 2018
Filing Date:
November 01, 2016
Export Citation:
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Assignee:
SEKISUI JUSHI KK
International Classes:
E01F9/608; E01F9/627; E01F13/02
Domestic Patent References:
JPS63104420U1988-07-06
JPH044397U1992-01-16
JP2015165071A2015-09-17
JP2008095318A2008-04-24
JP2011074668A2011-04-14
JP2015117477A2015-06-25