JPS63167581U

JPS63167581U -

Info

Publication number: JPS63167581U
Application number: JP6092187U
Authority: JP
Priority date: 1987-04-22
Filing date: 1987-04-22
Publication date: 1988-11-01

Description

[Brief explanation of the drawing]

図面は本考案の実施例を示すもので、第１図は
開状態の正面図、第２図は閉状態の正面図、第３
図は第２図の右側面図、第４図は第２図の平面図
、第５図は板ばね支持部材の中央断面図、第６図
は複写機等の要部を示す正面図、第７図は板ばね
の開閉角度変化に伴う蓋体付勢力の変化を示すグ
ラフ、第８図は蓋体の各開閉角における自重によ
るモーメント線図、第９図は板ばねの開閉角度変
化に伴う曲率変化を示す図である。１……本体、２……蓋体、３……蝶番装置、４
……ベース、５……横軸、６……アーム、７……
板ばね、８……板ばね支持部材、３４……板ばね
支持曲面。 The drawings show an embodiment of the present invention, in which Figure 1 is a front view in an open state, Figure 2 is a front view in a closed state, and Figure 3 is a front view in a closed state.
The figure is a right side view of Fig. 2, Fig. 4 is a plan view of Fig. 2, Fig. 5 is a central sectional view of the leaf spring support member, Fig. 6 is a front view showing the main parts of the copying machine, etc. Figure 7 is a graph showing changes in the biasing force of the lid as the opening/closing angle of the leaf spring changes, Figure 8 is a moment diagram due to the lid's own weight at each opening/closing angle, and Figure 9 is a graph showing changes in the opening/closing angle of the leaf spring. It is a figure showing a curvature change. 1... Main body, 2... Lid body, 3... Hinge device, 4
...Base, 5...Horizontal axis, 6...Arm, 7...
Leaf spring, 8... Leaf spring support member, 34... Leaf spring support curved surface.

Claims

[Scope of Claim for Utility Model Registration] A hinge device 3 for attaching a lid 2 to a main body 1 such as a document stand so as to be able to swing open and close, comprising a base 4 attached to an end on the side of the main body 1, and a base 4 attached to the end of the lid 2. An arm 6 is attached to the end and is swingably attached to the base 4 about a horizontal axis 5, and one end is attached to the base 4 side and the other end engages with the arm 6 to move the arm 6 in the opening direction. a leaf spring support member 8 which is located on the side where the leaf spring 7 is bent and is fixed to the base 4 side, and which supports the leaf spring 7 by abutting against its outer peripheral support curved surface 34; The leaf spring support curved surface 34 changes the lid self-weight moment and the lid biasing force by the leaf spring 7 in a required relationship as the opening angle of the lid 2 changes. A hinge device characterized in that it has a shape that allows it to rotate.