| 摘要 |
PROBLEM TO BE SOLVED: To provide a control force reduction device in which a control force which increases gradually in opening a shoji screen in a fully closed state can be reduced effectively in an indoor sliding door with which a soft close mechanism is provided.SOLUTION: The control force reduction device comprises a pivoting lever 2 and a pivoting piece 3. The pivoting lever 2 includes an abutment body 2A in its one end portion and is pivoted around a first thickness direction shaft G1 which is positioned at a door head side of a shoji screen D1. The pivoting piece 3 appears/disappears from a door head end C of the shoji screen D1 by pivoting around a second thickness direction shaft G2 which is positioned at the door head side rather than the first thickness direction shaft G1 and in the pivoting piece 3, an abutment body 2A is abutted to its door tail side face 3A. By moving an input part I of the pivoting lever 2 to the door tail side, the abutment body 2A pivoting to the door head side presses the pivoting element 3 to protrude from the door head end C of the shoji screen D1 while being abutted to the door tail side face 3A of the pivoting piece 3, and the door tail side face 3A of the pivoting piece 3 is formed in such a manner as to gradually decrease a pivoting angle of the pivoting piece 3, with respect to a pivoting angle of the pivoting lever 2, with operation of the input part I when opening the shoji screen D1 from a fully closed state. |
