Title:
CONCRETE CRACK REPAIR NOZZLE
Document Type and Number:
Japanese Patent JP2018131842
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To facilitate pulling out and to improve workability by reliably reducing the diameter of the elastic ring when pulling out the discharge pipe from the hole.SOLUTION: A nozzle that discharges a fluid filler to a hole H drilled in a concrete crack comprises a discharge pipe 1 which is inserted into the hole H and discharges the filler, an elastic ring 2 externally fitted to the distal end side of the discharge pipe 1 and expanded outwardly and elastically contactable with the hole H, a stopper 3 provided at a tip end portion of the discharge pipe 1 and pressing the elastic ring 2, and an outer pipe 4 which is provided on the base end side of the discharge pipe 1 from the elastic ring 2 and externally fitted on the discharge pipe 1 movably in its axial direction, in which the distal end portion 12 of the outer pipe 4 was formed in a tapered shape gradually narrowing from the proximal side outer surface toward the distal end side in order to bulge the elastic ring 2 by being inserted into the elastic ring 2 by the movement of the outer pipe 4 toward the distal end side of the discharge pipe 1.SELECTED DRAWING: Figure 4
Inventors:
SASAKI TAKAHIKO
SASAKI HIDEHIRO
SASAKI HIDEHIRO
Application Number:
JP2017027217A
Publication Date:
August 23, 2018
Filing Date:
February 16, 2017
Export Citation:
Assignee:
SAKAEGUMI CORP
International Classes:
E04G23/02; B05C5/00; E04G21/16
Attorney, Agent or Firm:
Yusaku Maruoka