| 摘要 |
PROBLEM TO BE SOLVED: To enhance design of an applicable fitting, and reduce manufacturing costs.SOLUTION: An auxiliary apparatus 30 for opening operation includes an operation member 33 disposed movably on a pedestal base 32, and a door pull member 31 having a force point part 31b located outside the pedestal base 32 and an operating point part 31c engaged to a base end part of the operation member 33, the door pull member being disposed rotatably on the pedestal base 32 through a support point part 31a. The auxiliary apparatus for opening operation moves the operation member 33 in a protrusion direction from the pedestal base 32 through the operating point part 31c, so as to press an opening frame 10 through a protruded edge part, when the door pull member 31 is rotated from a prescribed normal position to a prescribed operation position. On the pedestal base 32, a cover part 32c is provided on both sides of a virtual orthogonal plane CP that includes a center of rotation of the door pull member 31 and is orthogonal to fitting surfaces 32c1, 41a with a sash 20. A reinforcing member 40 is also provided, bridging between a front cover part 32c located in front of the orthogonal plane CP and a rear cover part 32c located behind the orthogonal plane.SELECTED DRAWING: Figure 6 |
