JPS60167177U

JPS60167177U - vane air pump

Info

Publication number: JPS60167177U
Application number: JP5384384U
Authority: JP
Inventors: 勇中村
Original assignee: 株式会社　山田製作所
Priority date: 1984-04-12
Filing date: 1984-04-12
Publication date: 1985-11-06

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) [Abstract] 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図は禾
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
、７・・・筒状部、８・・・端壁部、９・・・ベーン軸
、１１・・・シール部材、１２・・・ベーン、１６・・
・ネジ孔、１７・・・厚肉部、１８・・・貫通孔、１９
・・・ネジ当接面、２０・・・空洞部、２１・・・軸受
。Fig. 1 is a longitudinal cross-sectional view of a vane type air pump showing a conventional example, Fig. 2 is a cross-sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a longitudinal cross-section of a vane type air pump showing an embodiment of the invention. It is a front view. Explanation of symbols, 1...Casing, 2...Pump chamber,
3... Rotor, 4, 5... End wall, 6... Drive shaft part, 7... Cylindrical part, 8... End wall part, 9... Vane shaft, 11...・Seal member, 12... Vane, 16...
・Screw hole, 17...Thick wall part, 18...Through hole, 19
...Screw contact surface, 20...Cavity portion, 21...Bearing.

Claims

[Scope of utility model registration request]

A rotor 3 is provided, the rotational axis of which is eccentric with respect to the axis of the pump chamber 2 formed in the casing 1, and the rotor 3 includes a cylindrical portion 7 having a drive shaft portion 6 and a cylindrical portion 7 of the cylindrical portion. The part 7 consists of an end wall part 8 which is press-fitted into the casing 1, is rotatably supported by the casing 1 via a bearing, has one end fixed to the end wall 5 of the casing 1, and extends concentrically with the pump chamber 2. Vane shaft 9
is arranged inside the rotor 3, and the long hole 1 of the rotor 3 is inserted into the vane shaft 9.
In a vane type air pump rotatably supporting a vane 12 extending through the rotor 3, the end wall portion 8 of the rotor 3
A screw hole 16 passing through the end wall portion 8 is formed, and a through hole 18 communicating with the screw hole 16 and opening into the rotor 3 is formed in the thick wall portion 17 of the cylindrical portion 7. A vane type air pump characterized in that the end surface of the hole 18 faces the inside of the screw hole 16 so as to form a screw contact surface 19.