INTERNAL-DIMENSION RULER AND DOOR-FRAME MOUNTING METHOD USING INTERNAL-DIMENSION RULER

摘要

PURPOSE: To conduct the mounting operation of a door frame easily while the door frame is conformed properly to the width of a door. ;CONSTITUTION: In an internal-dimension ruler used for adjusting the opening width of a door frame 4, which has a horizontal bar 1 in length approximately equal to the width of a door and in which a lower section is opened, abutting pieces 2 are drooped from both ends of the horizontal bar 1 while notches are formed at the lower ends of the abutting pieces 2. The notches are engaged with engaging pins 6 driven into recessed sections 5 for fitting door stops of the door frame 4 while head sections are projected into the recessed section 5.;COPYRIGHT: (C)1996,JPO