JPH0248053U

JPH0248053U -

Info

Publication number: JPH0248053U
Application number: JP12415188U
Authority: JP
Priority date: 1988-09-22
Filing date: 1988-09-22
Publication date: 1990-04-03
Anticipated expiration: 2003-09-22
Also published as: JPH064868Y2

Description

[Brief explanation of drawings]

第１図、第２図は本考案の実施例を示す要部断
面図、第３図はリング状弁体の正面図、第４図は
全体側面図、第５図は本考案の他の実施例を示す
要部断面図、第６図は第５図Ａ部の拡大断面図、
第７図は従来例を示す断面図である。１……掃除機主体、２……ホース、３……接続
管、６……開口、７……リング状弁体、８……切
欠き部、９，９′……パーテイング部、１０，１
０′……凹溝。 Figures 1 and 2 are sectional views of main parts showing an embodiment of the present invention, Figure 3 is a front view of a ring-shaped valve body, Figure 4 is an overall side view, and Figure 5 is another embodiment of the present invention. A sectional view of main parts showing an example, FIG. 6 is an enlarged sectional view of part A in FIG. 5,
FIG. 7 is a sectional view showing a conventional example. 1... Vacuum cleaner main body, 2... Hose, 3... Connection pipe, 6... Opening, 7... Ring-shaped valve body, 8... Notch, 9, 9'... Parting part, 10, 1
0'...Concave groove.

Claims

[Scope of Claim for Utility Model Registration] (1) A main body of a vacuum cleaner with a built-in electric blower, dust collector, etc., and a cylindrical connecting pipe with an opening connected to a hose connected to the main body of the vacuum cleaner. , a ring-shaped valve body rotatably attached to the outer periphery of the connecting pipe and having a notch part for opening and closing the opening; The radius of curvature of the inner diameter of the valve body on the side facing the connecting pipe is made smaller than the radius of curvature of the outer diameter of the connecting pipe, and the radius of curvature of the inner diameter of the valve body on the side of the notch from the center point is approximately the same as the outer diameter of the connecting pipe, so that the notch is smoothed. Vacuum cleaner air volume adjustment device connected to the internal radius of curvature facing the section. (2) At least one concave groove is provided in the radial direction of the connecting pipe at a position close to the opening, and a parting part is formed in the inner diameter part of the valve body to connect the fixed part and the movable part of the mold, 2. The air volume adjusting device for a vacuum cleaner according to claim 1, wherein the parting portion is located in the concave groove portion when the body is attached to the connecting pipe.