JPS60159897U

JPS60159897U - vane air pump

Info

Publication number: JPS60159897U
Application number: JP4795984U
Authority: JP
Inventors: 高草木　一正
Original assignee: 株式会社　山田製作所
Priority date: 1984-03-31
Filing date: 1984-03-31
Publication date: 1985-10-24

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図は従来例を示すベーン式エアーポンプの縦断面図
、第２図は第１図Ａ−Ａ線に沿った断面図、第３図は本
考案実施例を示すベーン式エアーポンプの縦断面図であ
る。符号の説明、１・・・ケーシング、２・・・ポンプ室、
３・・・回転子、４，５・・・端壁、６・・・駆動軸部
、訃・・筒状部、９・・・ベーン軸、１１・・・シール
材、１２・・・ベーン、１３・・・空洞、１４・・・軸
受、１８・・・フランジ部、１９・・・プレート部材。Fig. 1 is a longitudinal sectional view of a vane type air pump showing a conventional example, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a longitudinal sectional view of a vane type air pump showing an embodiment of the present invention. It is a front view. Explanation of symbols, 1...Casing, 2...Pump chamber,
3... Rotor, 4, 5... End wall, 6... Drive shaft part, end... Cylindrical part, 9... Vane shaft, 11... Seal material, 12... Vane , 13... Cavity, 14... Bearing, 18... Flange portion, 19... Plate member.

Claims

[Scope of utility model registration request]

A rotor 3 is provided whose rotational axis is eccentric to the axis of a pump chamber 2 formed in the casing 1, and the rotor consists of a drive shaft portion 6 and a cylindrical portion 8. is rotatably supported via the end wall 5 of the casing 1.
A vane shaft 9 having one end fixed to the rotor 3 and extending concentrically with the pump chamber 2 is disposed within the rotor 3, and a vane 12 extending through a long hole in the rotor 3 is rotatably supported on the vane shaft 9. In a vane type air pump in which the other end of the vane shaft 9 is made eccentric and supported via a bearing 14 in a cavity 13 formed in the drive shaft portion 6 of the rotor 3, the cylindrical portion 8 of the rotor 3 and the drive A vane type air pump characterized in that a plate member 19 protruding inward from the flange portion 18 is interposed between the shaft portion 6 and the flange portion 18.