CYLINDRICAL FRAME FOR FORMING VARIABLE HEIGHT TYPE LEVEL MORTAR

• Main Author: MATSUI KOUSHI
• Format: Patent
• Language: English
• Published: 13.02.2003
• Edition: 7
• Subjects: EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES

PROBLEM TO BE SOLVED: To provide an accurate level mortar forming means of high work efficiency capable of forming level mortar by making the height of a level mortar forming cylindrical frame variable, determining the height at the upper end part in using the cylindrical frame, and injecting a level mortar forming material up to the upper end of the cylindrical frame. SOLUTION: In order to solve the problem, this cylindrical frame for forming variable height type level mortar in a first invention comprises an outer cylindrical frame with a thread part formed on the inner peripheral surface, and an inner cylindrical frame with a thread part formed on the outer peripheral surface so as to be screwed with the thread part of the outer cylindrical frame, and the height is adjusted by rotating the inner cylindrical frame or the outer cylindrical frame. In the cylindrical frame for forming variable height type level mortar in a second invention, both the outer cylindrical frame and inner cylindrical frame are made of metal, and a flat collar is formed toward the inside of the bottom part side. In the cylindrical frame for forming variable height type level mortar in a third invention, the inner cylindrical frame is formed of a plurality of frames. In the cylindrical frame for forming variable height type level mortar in a fourth invention, reinforcing rods are formed inside the inner cylindrical frame and outer cylindrical frame.