JPS6141774U

JPS6141774U - Door-blocking device

Info

Publication number: JPS6141774U
Application number: JP12689584U
Authority: JP
Inventors: 高治渡部
Original assignee: 株式会社三渡工業所
Priority date: 1984-08-21
Filing date: 1984-08-21
Publication date: 1986-03-17
Also published as: JPH0240710Y2

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ｉ・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、６，７・・・軸、訃
・・主カム、８ａ・・・偏平面、８ｂ・・・カム面、９
・・・副カム、９ａ・・・偏平面、９ｂ・・・カム面、
１０・・・コイルばね、１１・・・ケース、１３・・・
コイルばね、２３・・・長孔、２５．２６・・・保護板
、２９・・・リンク、３２・・・ガイドｑ−ラ、・３３
・・・長孔、３５・・・コイルばね。The drawings show an example of the implementation of the present invention. Fig. 1 is a schematic perspective view of the door seen 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 a perspective view of the door. An enlarged perspective view of the main parts when 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, 7... Shaft, butt... Main cam, 8a... Flat surface, 8b...Cam surface, 9
... Sub-cam, 9a... Flat surface, 9b... Cam surface,
10...Coil spring, 11...Case, 13...
Coil spring, 23... Long hole, 25.26... Protective plate, 29... Link, 32... Guide q-ra, 33
...Long hole, 35...Coil spring.

Claims

[Scope of utility model registration request]

A door closing device that is rotatably installed around a vertical axis at an entrance/exit of a building and automatically closes the door,
A main cam that is fixed to a shaft and rotates therein, a sub-cam that rotates separately from the main cam, a first spring that presses the main cam and biases the doser in a direction to close the doser via the shaft; a second spring that biases the secondary cam in the direction opposite to the closing direction of the door, and applies a braking force to the door in the direction opposite to the closing direction; is connected to the link, a guide member that slidably engages the other end of the link, and a guide member that is fitted onto the shaft of the main cam so that a frictional force is generated when the door is closed. A door closing device consisting of a coil spring installed in the door.