JPS6259270U

JPS6259270U -

Info

Publication number: JPS6259270U
Application number: JP15086585U
Authority: JP
Priority date: 1985-10-03
Filing date: 1985-10-03
Publication date: 1987-04-13

Description

[Brief explanation of the drawing]

図面は本考案の実施例を示し、第１図は開閉装
置の一部破断正面図、第２図は第１図の―線
断面図、第３図は外観正面図、第４図は回転体の
斜視図、第５図はリンク機構の動作説明図、第６
図は開釦取付部の断面図、第７図は排煙用窓の概
略正面図である。３は本体、４は操作軸、５はハンドル、６は爪
車、６ｂは歯、８は一方向クラツチ、９はドラム
、１０は回転体、２７は爪杆、２９は爪、３６は
開釦。 The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway front view of the switchgear, Fig. 2 is a sectional view taken along the line - - of Fig. 1, Fig. 3 is an external front view, and Fig. 4 is a rotating body. Fig. 5 is an explanatory diagram of the operation of the link mechanism, Fig. 6 is a perspective view of
The figure is a sectional view of the opening button attachment part, and FIG. 7 is a schematic front view of the smoke exhaust window. 3 is the main body, 4 is an operating shaft, 5 is a handle, 6 is a ratchet wheel, 6b is a tooth, 8 is a one-way clutch, 9 is a drum, 10 is a rotating body, 27 is a pawl rod, 29 is a pawl, 36 is an opening button .

Claims

[Scope of utility model registration request]

An operating shaft 4 equipped with a handle 5 is rotatably supported on the main body 3, and a rotating body 10 is mounted on the operating shaft 4, and rotates together with the operating shaft 4 by moving in the axial direction in the forward direction and rotating in the reverse direction. is attached to rotate together with the operating shaft 4, and a ratchet wheel 6 is rotatably supported on the operating shaft 4, and a one-way clutch is connected to a drum 9 around which an opening/closing cable is wound around the outer periphery of the ratchet wheel 6. At the same time, a pawl rod 27 having a pawl 29 that engages with the teeth 6b of the ratchet wheel 6 is biased in the engaging direction, and the pawl rod 27 and the opening button 36 provided on the main body 3 are operated. When the shaft 4 is connected to the shaft 4 via a link mechanism, and the opening button 36 is pressed, the pawl rod 27 is opened.
A smoke evacuation window opening/closing device characterized in that the claw 29 and the teeth 6b swing in a direction in which they separate, and when the operating shaft 4 is rotated, the claw rod 27 swings to an engaging position.