Suunto method and Suunto device of the laser beam utilized

摘要

PURPOSE: To perform a measuring work even when an obstruction is present in the center part of a room by emitting a laser beam in right-angled cross directions from a laser beam source within a reference device into the inner side surface of a sill, and displaying a cross line showing the position on the plane of the reference device. ;CONSTITUTION: When an obstruction D difficult to move is present in the central part of a room A to cover with 'tatami' (straw mat), a reference device body 1 is arranged in one position of four corners of the room A, the height of a tripod 8 is regulated for leveling, and right-angle-degree measuring members 7, 7' are brought into contact with the inner side surfaces C', C₁' on two sides having the inner angle of a sill C between them. The direction of a cross line 6 displayed on the plane of the metal case 1₁ of the body 1 is turned to the parallel direction to the sill, a switch is ON to emit the laser beam from a laser beam source lamp 2 in vertical line from to the inner side surfaces of the sill C. At measurement, masking with a needle or a pen is made to the Δ-marked position at which the sill dimension of two sides is measured, and the ○-marked position is totally measured. The dimension on the opposite sides can be obtained by subtracting the projection or recess dimension of the sill measured before from the total dimension.;COPYRIGHT: (C)1995,JPO