JPS59135264U

JPS59135264U - pneumatic booster

Info

Publication number: JPS59135264U
Application number: JP2929483U
Authority: JP
Inventors: 秀行森本
Original assignee: 株式会社ナブコ
Priority date: 1983-02-28
Filing date: 1983-02-28
Publication date: 1984-09-10

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 drawings]

第１図は体考案の実施例による気圧式倍力装置の側断面
図、第２図は第１図における可動体の板部の背面図、及
び第３図は第１図における可動体のハブ部分の背面図で
ある。なお図において、１・・・気圧式倍力装置、３・・・前
方シェル、４・・・ダイヤフラム、５・・・後方シェル
、　　　　　７・・・内周ビード部、８・・・可動体、
１０・・・負圧室、１１・・・変圧室、１６・・・板部
、１８．５２・・・突起、２０・・・ハブ部分、２０ａ
・・・溝、２０ｂ・・・環状凹所、５３．５５・・・切
欠き。第３図Fig. 1 is a side sectional view of a pneumatic booster according to an embodiment of the invention, Fig. 2 is a rear view of the plate portion of the movable body in Fig. 1, and Fig. 3 is a hub of the movable body in Fig. 1. FIG. In the figure, 1... pneumatic booster, 3... front shell, 4... diaphragm, 5... rear shell, 7... inner peripheral bead portion, 8... movable body,
DESCRIPTION OF SYMBOLS 10... Negative pressure chamber, 11... Transforming pressure chamber, 16... Plate part, 18.52... Protrusion, 20... Hub part, 20a
... Groove, 20b... Annular recess, 53.55... Notch. Figure 3

Claims

[Scope of utility model registration request]

A movable body that is inserted into a space formed inside the main body to partition a variable pressure chamber and a constant pressure chamber, and a cylindrical hub part that penetrates the main body from the space and projects to the outside, and a direction that crosses the space. It has a divided structure from a disc-shaped plate part with holes extending from the
The inner circumference of a diaphragm that seals between the main body and the movable body is fitted into a groove formed on the outer circumference of the hub, and the inner circumference of the plate is connected to the inner circumference of the diaphragm and the 7
In the pneumatic booster in which the hub part and the plate part are connected by being disposed between the joint surface formed near the groove in part 11, the joint surface is formed in the hub part apart from the groove. A pneumatic booster comprising: a plurality of protrusions facing the plate; and a plurality of notches corresponding to the protrusions on the inner periphery of the plate portion.