JPS60130979U

JPS60130979U - Door-blocking device

Info

Publication number: JPS60130979U
Application number: JP1805584U
Authority: JP
Inventors: 渡部　高治
Original assignee: 株式会社三渡工業所
Priority date: 1984-02-10
Filing date: 1984-02-10
Publication date: 1985-09-02
Also published as: JPH0240709Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本考案の実施の一例を示すもので、第１゜図はド
アーを開いて前方から見た概略斜視図、第２図は第１図
の要部拡大斜視図、第３図はドアーを開いて後方から見
た要部拡大斜視図、第４図はドアー閉塞装置の斜視図、
第５図は同分解斜視図、第６図はドアー閉塞装置本体部
の横断面図、第７図は同背面図、第８図ａ　％　ｄは動
作説明図で１ある。１・・・ドアー、２・・・出入口部、４・・・ドアー閉
塞装置本体、５・・・ガイド部材、６・・・軸、７・・
・主カム、７ａ・・・偏平面、７ｂ・・・カム面、８・
・・副カム、８ａ・・・偏平面、８ｂ・・・カム面、９
・・・コイルばね、１０・・・金属板、１１・・・スラ
イド部材、１９・・・コイルばね、２２・・・リンク、
２５・・・ガイローラ、２６・・・長孔。 □７しこ２士掻２’　　　　？／　　−Ｆ’ （ａ）・　ｊｙ；＝　、、／　、、／ゝ″■ （〜−〜　／ｚ、−）、、／　１１　　　　！り１The drawings show an example of the implementation of the present invention. Fig. 1 is a schematic perspective view of the door viewed from the front with the door open, Fig. 2 is an enlarged perspective view of the main part of Fig. 1, and Fig. 3 is an illustration of the door open. An enlarged perspective view of the main parts opened and seen from the rear; FIG. 4 is a perspective view of the door closing device;
Fig. 5 is an exploded perspective view, Fig. 6 is a cross-sectional view of the main body of the door closing device, Fig. 7 is a rear view thereof, and Fig. 8 a to d are explanatory views of the operation. DESCRIPTION OF SYMBOLS 1... Door, 2... Entrance/exit part, 4... Door closing device main body, 5... Guide member, 6... Shaft, 7...
・Main cam, 7a...Flat surface, 7b...Cam surface, 8.
... Sub-cam, 8a... Flat surface, 8b... Cam surface, 9
... Coil spring, 10 ... Metal plate, 11 ... Slide member, 19 ... Coil spring, 22 ... Link,
25... Guy roller, 26... Long hole. □7 Shiko 2 Shikaki 2'? / -F' (a) ・ jy;= ,, / ,, /ゝ''■ (〜-~ / z, -),, / 1 1 !ri1

Claims

[Scope of utility model registration request]

A door closing device that automatically closes a door that is rotatably installed around a vertical axis at the entrance/exit of a building, and includes a main cam that is fixed to a shaft inside and rotates, and a main cam that is loosely fitted to the shaft and rotates. a first spring that presses the secondary cam, a first spring that presses the main cam in a direction to close the door via the shaft, and a second spring that biases the secondary cam in a direction opposite to the door closing direction. It consists of a main body to be stored, a link with one end connected to one end of the shaft, and a guide member that slidably engages the other end of the link, and the sub cam is connected to the first spring just before the door is closed. A door closing device characterized in that the door closing device is brought into contact with the first spring side to create a gap between the door closing device and the main cam.