JPS59190863U

JPS59190863U - door self-closing device

Info

Publication number: JPS59190863U
Application number: JP8488883U
Authority: JP
Inventors: 石塚　保範; 光男玉置
Original assignee: Ryobi Ltd
Current assignee: Ryobi Ltd
Priority date: 1983-06-02
Filing date: 1983-06-02
Publication date: 1984-12-18

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 the drawing]

第１図、第２図は本考案に係る扉の自閉装置の使用状態
を夫々示した平面図と正面図、第３図は同装置の縦断正
面図、第４図は同装置を一部断面して示した側面図、第
５図は第３図におけるＶ−Ｖ線矢視横断面図、第６図は
同装置におけるスプリングホルダーの歯車部と渦巻きカ
ムの説明図である。１・・・ケース、２・・・補助板、６・・・回転軸、７
・・・スプリングホルダー、７ｂ・・・歯車部、８・・
・ガイド、９・・・スプリング、１１・・・渦巻きカム
、１１ｄ・・・係合溝、１２・・・取付枠、１４・・・
扉、１６・・・アーム、１８・・・リンク。Figures 1 and 2 are a plan view and a front view showing the state of use of the self-closing device for a door according to the present invention, Figure 3 is a longitudinal sectional front view of the device, and Figure 4 is a partial view of the device. FIG. 5 is a cross-sectional view taken along the line V--V in FIG. 3, and FIG. 6 is an explanatory diagram of the gear portion of the spring holder and the spiral cam in the device. 1... Case, 2... Auxiliary plate, 6... Rotating shaft, 7
... Spring holder, 7b... Gear part, 8...
・Guide, 9... Spring, 11... Spiral cam, 11d... Engagement groove, 12... Mounting frame, 14...
Door, 16...arm, 18...link.

Claims

[Scope of utility model registration request]

A mounting frame 12 that rotatably supports the door 14 and a rotating shaft 6 supported vertically on the case 1 fixed to the door with an end protruding outward are connected via an arm 16 and a link 18, and the door The door automatically closes when the rotating shaft is rotationally interlocked with the opening rotation of the door, and a closing force is stored in a spring 9 which is provided on the exterior to apply a rotational force to the rotating shaft. In the device, a spring holder 7 having a gear portion 7b on the outer periphery is mounted on the rotating shaft so as to be relatively rotatable, and is mounted together with a guide 8 for mounting the spring, so that one end of the spring is attached to the rotating shaft together with the guide. At the same time, the other end of the spring is hooked to a spring holder, and the auxiliary plate 2 fixed to the case rotatably supports a spiral cam 11 having an engagement groove 11d at the shaft end for a screwdriver, etc. A self-closing device for a door, characterized in that the spiral cam and the gear part of the spring holder are engaged with each other so that the spring force can be arbitrarily adjusted by the spiral cam.