JPS5896083U - bellows pump - Google Patents

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図、第２図は従来のベローズポンプを示すそれぞれ
断面図、第３図は本考案のベローズポンプの実施例を示
す断面図、第４図は同例のベローズ本体の一部切欠平面
図、第５図は同例の押圧した状態を示す断面図である。 １、　１１．　２１・・・・・・ベローズ本体、２，１
２゜２２・・・・・・ベローズ上板、２１ａ・・・・・
・細口筒状部、２１ｂ・・・・・・上板保持突起、２２
ａ・・・・・・貫通孔。Figures 1 and 2 are sectional views showing a conventional bellows pump, Figure 3 is a sectional view showing an embodiment of the bellows pump of the present invention, and Figure 4 is a partially cutaway plan view of the bellows main body of the same example. , FIG. 5 is a sectional view showing the same example in a pressed state. 1, 11. 21...Bellows body, 2,1
2゜22...Bellows upper plate, 21a...
・Narrow mouth cylindrical part, 21b...Top plate holding projection, 22
a...Through hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ベローズ本体の上面にベローズ上板が固着されたベロー
ズポンプにおいて、前記ベローズ上板に貫通孔が形成さ
れ、前記ベローズ本体上部に前記貫通孔を貫通し外周面
上に上板保持突起を有する細口筒状部が形成され、前記
ベローズ上板が前記上板保持突起に係止されて前記ベロ
ーズ本体上面に固着されたことを特徴とするベローズポ
ンプ。In a bellows pump in which a bellows upper plate is fixed to the upper surface of a bellows body, a through hole is formed in the bellows upper plate, and a narrow-mouthed cylinder that passes through the through hole and has an upper plate holding protrusion on the outer peripheral surface of the bellows body. A bellows pump characterized in that a shaped portion is formed, and the bellows upper plate is engaged with the upper plate holding protrusion and fixed to the upper surface of the bellows main body.