US 9,284,740 B2Granted

Mortar peeling method

AssigneeMarutaka-Kogyo Inc.

InventorsKazumasa Takagi, Eizou Takagi, Masayuki Asakura, Tatsuya Ida

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Abstract

[Problem] A mortar peeling method which can keep a sound generated during a peeling work to an allowable quiet sound and can peel a mortar off a concrete framework smoothly. [Solution] In a mortar peeling method, by gradually extending a piston rod 42 of a hydraulic jack 13 in a mortar peeling device 10A forward in one direction, a cutter 14 is gradually advanced forward in one direction so as to execute a mortar peeling process of peeling a mortar 21 with a predetermined thickness off a concrete framework 20 by using the cutter 14. In the mortar peeling method, after the piston rod 42 of the hydraulic jack 13 is extended forward in one direction and the mortar 21 is peeled, by retreating the piston rod 42 rearward in one direction, a session of the mortar peeling process is completed.

Claims12

Dependent claims

A mortar peeling method using a mortar peeling device for peeling a mortar constructed on a concrete framework, characterized in that

said mortar peeling device includes a guide member separated away from an outer surface of said mortar by a predetermined dimension and extending in one direction in parallel with the outer surface of the mortar, a jack having a piston rod capable of extending forward in one direction and located between said mortar and said guide member, a cutter located at a tip end portion of said piston rod and peeling the mortar off said concrete framework, jack connecting means for connecting said jack to said guide member at a predetermined spot, and first fixing means for fixing said guide member and said jack to a peeling spot of said mortar;
and
said mortar peeling method performs a mortar peeling process of peeling the mortar having a predetermined thickness off said concrete framework using said cutter by gradually advancing said cutter forward in one direction by gradually extending the piston rod of said jack forward in one direction.

Dependencies are inferred from the claim text.

Facts

Application: 14/361,839Filed 5 Dec 2012
Priority: JP 2011-2667356 Dec 2011
Published: US 2015/0107570 A123 Apr 2015
Granted: 15 Mar 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

E04G 23/0296
Repairing, e.g. filling cracks; Restoring; Altering; Enlarging: repairing or restoring facades
B28D 1/00
Working stone or stone-like materials
B28D 1/005
Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor: cutting sheet…
B28D 1/18
Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor: by milling,…