JPS60155791U

JPS60155791U - air pump

Info

Publication number: JPS60155791U
Application number: JP4324984U
Authority: JP
Inventors: 寛吉田
Original assignee: 自動車機器株式会社
Priority date: 1984-03-28
Filing date: 1984-03-28
Publication date: 1985-10-17

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図および第２図は従来例としてのエアポンプ全体の
概略構成を示す縦断面図およびそのｎ−■線断面図、第
５図はそのロータのスリット内でのベーンシール部を拡
大して示す要部拡大図、第　　　４図は別の従来例を示
す要部拡大図、第５図はベーンシール部で要求されてい
る押し付は力特性を示す特性図、第６図は本考案に係る
エアポンプの一実施例を示す要部拡大断面図、第７図は
その特性図である。１・・・ポンプハウジング、１ａ・・・ポンプ室、１ｂ
、ｌｃ・・・吸込側、吐出側通路、４・・田−タ、６ａ
・・・ロータシャフト、８・・・ベーン、９・・・ベー
ンシャフト、１０・・・スリット、１４・・・ベーンホ
ルダ、２７・・・駆動側のベーンシール、２８・・・非
駆動側のベーンシール、２７ａ、２８ａ・・・溝部、２
９・・・ばね。Figures 1 and 2 are a vertical cross-sectional view and a cross-sectional view taken along the line n-■ showing the overall structure of a conventional air pump, and Figure 5 is an enlarged view of the vane seal portion within the slit of the rotor. Figure 4 is an enlarged view of the main part showing another conventional example, Figure 5 is a characteristic diagram showing the force characteristics of the pressing force required at the vane seal part, and Figure 6 is a diagram showing the force characteristics of the air pump according to the present invention. FIG. 7 is an enlarged sectional view of a main part showing one embodiment, and a characteristic diagram thereof. 1...Pump housing, 1a...Pump chamber, 1b
, lc... Suction side, discharge side passage, 4... Data, 6a
... Rotor shaft, 8... Vane, 9... Vane shaft, 10... Slit, 14... Vane holder, 27... Drive side vane seal, 28... Non-drive side vane seal, 27a, 28a...Groove, 2
9...Spring.

Claims

[Scope of utility model registration request]

A rotor that incorporates vanes and a vane shaft,
In an air pump that performs pumping action by moving the vane forward and backward from a slit on the outer periphery of the rotor by rotating it at an eccentric position within the pump housing, the vane is held within the slit of the rotor by grooves provided on both sides of its inner wall. and a pair of vane seals that sandwich both sides of the vane from both sides, and of these vane seals,
The vane seal on the drive side is fitted and held within the groove so as to contact perpendicularly to a plane passing from the center of the rotor to the center of the slit, and the vane seal on the non-drive side is held as the rotor rotates. The air pump is characterized in that the air pump is held in the groove portion with a tip end thereof in contact with the vane inclined outward so that centrifugal force acts in the direction in which the air pump protrudes.