Title:
FLOOR SLAB CUTTER
Document Type and Number:
Japanese Patent JP2020063656
Kind Code:
A
Abstract:
To provide a floor slab cutter using a wire saw which extends continuously in a direction along a joint boundary surface between a bridge girder and a concrete slab and in width and thickness directions of the concrete slab, and which is capable of prohibiting a cutting operation in the direction along the joint interface between the bridge girder and the concrete slab if necessary.SOLUTION: A floor slab cutter 20 includes: a wire saw 23 that extends continuously in the direction along a joint boundary surface and in the width and thickness directions of a concrete slab 3; and multiple pulleys for guiding and driving the wire saw 23 in a traveling direction along its extension route. The floor slab cutter also includes: upper wire saw cutting devices 21, 22 located above a bridge girder 2; and lower wire saw cutting device 81, 91 located below the concrete slab 3, in which the wire saw 23 extends between the upper wire saw cutting devices 21, 22 and the lower wire saw cutting devices 81, 91.SELECTED DRAWING: Figure 21
Inventors:
NISHIGAKI NOBORU
MURAI KOICHI
HASHIMOTO TATSUYA
MURAI KOICHI
HASHIMOTO TATSUYA
Application Number:
JP2019197456A
Publication Date:
April 23, 2020
Filing Date:
October 30, 2019
Export Citation:
Assignee:
MIYAJI ENG CO LTD
International Classes:
E01D24/00
Domestic Patent References:
| JP2018145797A | 2018-09-20 | |||
| JP2011021423A | 2011-02-03 | |||
| JP2018087418A | 2018-06-07 | |||
| JP2017193887A | 2017-10-26 | |||
| JP2017203299A | 2017-11-16 |
Attorney, Agent or Firm:
Hiroshi Arafune