Title:
ダイヤフラムポンプ
Document Type and Number:
Japanese Patent JP3964136
Kind Code:
B2
Abstract:
A diaphragm pump with a diaphragm (1) of elastic material, which includes a receiving cavity (4) in a reinforced central area (3) for a connecting rod head (5) of a connecting rod which displaces the diaphragm (1). The diaphragm (1) includes a clamping rim (2) for securing the diaphragm to the pump housing. On the upper side (8) of the diaphragm (1) which is proximal to the pump chamber, at least one circularly disposed rib (9) is provided essentially radially outward from and proximal to a central area (3) which area is bounded by the outline of the connecting rod head (5) or by the outline of a part of the diaphragm (1) near to the said connecting rod head (5). A plurality of ribs (9), spaced in a radial direction one from the other are provided and are located where the forces introduced by the connecting rod head (5) spread into the radial, neighboring ring area of the diaphragm.
Inventors:
Andre Meir
Application Number:
JP2000600004A
Publication Date:
August 22, 2007
Filing Date:
January 20, 2000
Export Citation:
Assignee:
Car NF Frodos Actien Gezel Shaft
International Classes:
F04B43/02; F04B43/00; F04B45/04
Domestic Patent References:
| JP6087682U | ||||
| JP8261156A | ||||
| JP55060760A | ||||
| JP6506998A | ||||
| JP10169562A | ||||
| JP57061269U |
Foreign References:
| US4270441 | ||||
| DE19631081C2 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
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