JPS6183763U

JPS6183763U -

Info

Publication number: JPS6183763U
Application number: JP16958184U
Authority: JP
Priority date: 1984-11-07
Filing date: 1984-11-07
Publication date: 1986-06-03
Also published as: JPH0326857Y2

Description

[Brief explanation of the drawing]

第１図は本考案に係る防火扉用自動閉鎖装置の
実施例を示した縦断側面図、第２図は同実施例の
平面図、第３図、第４図、第５図は同実施例にお
いて、扉を開き位置に係止する状態を一部切欠し
て順番に夫々示した各縦断側面図、第６図は同実
施例の自動係止解除状態を一部切欠して示した縦
断側面図、第７図、第８図は同実施例の使用例を
夫々示した正面図と側面図である。１…本体ケース、３…スライダー手段、４…係
止手段、５…トグル手段、６…係止解除手段、８
…スライド板、８ａ，１５ａ…斜面、１１…防火
扉、１２…係止穴、１３…作動板、１４…係止体
、１６…係止用スプリング、１７…係止力調整ネ
ジ、１８…支点軸ピン、２７…ソレノイド、２８
…プランジヤー、２９…プランジヤースプリング
。 Fig. 1 is a longitudinal side view showing an embodiment of the automatic closing device for fire doors according to the present invention, Fig. 2 is a plan view of the embodiment, and Figs. 3, 4, and 5 are the embodiments. Fig. 6 is a partially cutaway side view showing the state in which the door is locked in the open position, and Fig. 6 is a partially cutaway side view showing the automatic lock release state of the same embodiment. 7 and 8 are a front view and a side view, respectively, showing an example of use of the same embodiment. DESCRIPTION OF SYMBOLS 1... Main body case, 3... Slider means, 4... Locking means, 5... Toggle means, 6... Lock release means, 8
...Sliding plate, 8a, 15a... Slope, 11... Fire door, 12... Locking hole, 13... Operating plate, 14... Locking body, 16... Locking spring, 17... Locking force adjustment screw, 18... Fulcrum Axis pin, 27... Solenoid, 28
...Plunger, 29...Plunger spring.

Claims

[Scope of utility model registration request]

A slider means having a locking hole and a slide plate having a slope at the tip and sliding back and forth within the main body case in conjunction with opening and closing of the fire door, and the slide plate being able to be freely engaged and detached when the door is open. A locking body whose locking surface is formed into a slope or the like so that it can be held in place, a locking spring that elastically urges the locking body in the projecting direction, and a locking screw that is screwed together so that the spring force on the locking body can be adjusted. A stopping force adjustment screw is provided on the actuating plate, and the actuating plate is pivoted in the main body case by a fulcrum shaft pin so as to be rotatable in a direction in which the locking body is engaged with and disengaged from the locking hole of the slide plate. a locking means formed to be able to bend and return to a linear state with a spring interposed therebetween, the lower end of which is pivotally supported within the main body case, and the locking member and the locking member in a linear state due to a spring force; A toggle means that connects the actuating plate to hold the actuating plate in a state in which the actuating plate can be locked with the hole, and the intervening plunger is cut off by cutting off the supply current to the solenoid fixed to the main body case. the plunger is pushed by a year spring, and a pushing force of the plunger is applied to the toggle means when the supply current to the solenoid is cut off, and this is converted into a bending motion. An automatic closing device for a fire door, characterized in that the operating plate is configured to rotate so as to be able to release the locking of the sliding plate upon receiving the transmission.