JPS61160844U

JPS61160844U -

Info

Publication number: JPS61160844U
Application number: JP4374985U
Authority: JP
Priority date: 1985-03-26
Filing date: 1985-03-26
Publication date: 1986-10-04

Description

[Brief explanation of the drawing]

第１図ないし第４図はこの考案の第一の実施例
を示すもので、第１図は安全弁装置周辺の縦断面
図、第２図は第１図Ａ―Ａ線に沿う断面図、第３
図はスプリングが収縮した状態を示す安全弁装置
周辺の縦断面図、第４図は電気掃除機本体を一部
切欠して示す側面図、第５図および第６図はこの
考案の第二の実施例を示すもので、第５図は安全
弁装置周辺の斜視図、第６図は同装置の横断面図
、第７図は従来例を示す安全弁装置周辺の横断面
図である。１０……電動送風機、１２……安全弁装置、１
３，３３……シリンダー、１４……弁体、１５…
…開放孔、１６……圧縮コイルスプリング、１７
……連通口。 Figures 1 to 4 show a first embodiment of this invention, in which Figure 1 is a vertical sectional view of the area around the safety valve device, Figure 2 is a sectional view taken along the line A--A in Figure 1, and Figure 2 is a sectional view of the area around the safety valve device. 3
The figure is a longitudinal cross-sectional view of the safety valve device and its surroundings showing the state in which the spring is contracted, Figure 4 is a side view with a part of the vacuum cleaner main body cut away, and Figures 5 and 6 are the second implementation of this invention. To illustrate an example, FIG. 5 is a perspective view of the vicinity of the safety valve device, FIG. 6 is a cross-sectional view of the same device, and FIG. 7 is a cross-sectional view of the vicinity of the safety valve device showing a conventional example. 10...Electric blower, 12...Safety valve device, 1
3, 33...Cylinder, 14...Valve body, 15...
...Open hole, 16...Compression coil spring, 17
...Communication port.

Claims

[Scope of utility model registration request]

A cylinder that has a communication port communicating with the suction side of the electric blower on one end side and an open hole communicating with the atmosphere on the other end side, and a state in which the cylinder is movable in the axial direction and is moved most toward the open hole side. Then, a valve body is installed that closes this open hole, opens the open hole by moving toward the communication port, and displays the storage state of dust in the dust collection chamber by the amount of movement according to the wind pressure, and the valve body that is located inside the cylinder. a compression coil spring that constantly urges the valve body toward the open hole and contracts as the valve body moves toward the communication port in response to the suction operation of the electric blower; and an end portion of the spring on the valve body side. is provided on the inside of the cylinder so as to be substantially in contact with the outside from the outside, and expands from the open hole side toward the communication port so as to substantially correspond to the rate of expansion of the diameter of the end on the valve body side as the spring contracts. A safety valve device for a vacuum cleaner, comprising a spring guide surface that opens.