JPH01113911U

JPH01113911U -

Info

Publication number: JPH01113911U
Application number: JP855388U
Authority: JP
Priority date: 1988-01-26
Filing date: 1988-01-26
Publication date: 1989-07-31

Description

[Brief explanation of the drawing]

第１図は回動制限装置を取り付けたアームの作
動状態を示す概略構造図、第２図は揺動腕と摺動
軸の作動状態図、第３図は摺動孔の形状が異なる
回動制限装置の分解斜視図、第４図は取り付け状
態図、第５図は揺動腕と摺動軸の作動状態図、第
６図は取り付け個所の異なる実施例の斜視図、第
７図は作動状態を示す概略構造図、第８図は従来
例の斜視図、第９図は別の従来例の斜視図、第１
０図は断面図、第１１図は前図と直交する方向の
断面図である。４６，９１……筒状アーム、４９，９８……円
形カバー、３００……揺動腕、３０３……軸支点
、３０４……摺動孔、３２０……摺動軸。 Figure 1 is a schematic structural diagram showing the operating state of the arm with the rotation limiter attached, Figure 2 is a diagram of the operating state of the swinging arm and sliding shaft, and Figure 3 is the rotation with different shapes of the sliding hole. Figure 4 is an exploded perspective view of the restriction device, Figure 4 is a diagram of the installed state, Figure 5 is a diagram of the operating state of the swing arm and sliding shaft, Figure 6 is a perspective view of an embodiment with different attachment points, and Figure 7 is the operating state. A schematic structural diagram showing the state; FIG. 8 is a perspective view of a conventional example; FIG. 9 is a perspective view of another conventional example;
0 is a sectional view, and FIG. 11 is a sectional view taken in a direction perpendicular to the previous figure. 46, 91... Cylindrical arm, 49, 98... Circular cover, 300... Swinging arm, 303... Axis fulcrum, 304... Sliding hole, 320... Sliding shaft.

Claims

[Scope of utility model registration request]

Of the pair of links that make up the parallel crank,
One has a cylindrical shape, the other is housed inside the cylindrical link, both ends of the other link are rotatably connected to separate circular hinge plates, and both ends of the cylindrical link A circular cover integrally provided with the circular hinge plate covers one side of the circular hinge plate and is rotatably connected to the circular hinge plate concentrically with the circular hinge plate. In a parallel crank type arm covered with another circular cover that rotates together with the cylindrical link, one end of the swinging arm can swing on either side of the another circular cover or the cylindrical link. The other end side of the swinging arm is pivoted and is swingable and slidable within a certain range with respect to a fixed point provided on the other side of the circular cover and the cylindrical link. A rotation limiting device for a parallel crank type arm, characterized in that the device is connected to a parallel crank arm.