JPS6245931Y2

JPS6245931Y2 -

Info

Publication number: JPS6245931Y2
Application number: JP16174081U
Authority: JP
Priority date: 1981-10-29
Filing date: 1981-10-29
Publication date: 1987-12-09
Also published as: JPS5865130U

Description

【考案の詳細な説明】本考案はリザーバの装着穴に装着されるリザー
バキヤツプに関するものである。[Detailed Description of the Invention] The present invention relates to a reservoir cap that is attached to a reservoir attachment hole.

一般に、この種のリザーバキヤツプは底板より
リザーバに向つて下方に折曲げられた円筒壁を有
しており、例えばキヤツプ表面にかかつた水滴が
円筒壁を伝つたり、またポンプ振動によつてリザ
ーバ側より飛びはねてきたりして、円筒壁の下端
縁には水滴が溜りやすい。 Generally, this type of reservoir cap has a cylindrical wall that is bent downward from the bottom plate toward the reservoir. Water droplets tend to accumulate on the lower edge of the cylindrical wall due to splashing from the reservoir side.

しかしながら従来のリザーバキヤツプにおいて
はこの円筒壁の下端縁にリザーバ内と大気とを連
通する非常に小径のエア通気孔が開口されてお
り、前記下端縁に溜つた水滴は毛細管現象によつ
て前記エア通気孔内に吸込まれてリザーバ内に浸
入するおそれがあつた。 However, in conventional reservoir caps, a very small diameter air vent is opened at the lower edge of this cylindrical wall to communicate the inside of the reservoir with the atmosphere, and water droplets accumulated on the lower edge are absorbed by the air through capillary action. There was a risk that it would be sucked into the vent and enter the reservoir.

本考案は従来のこのような不具合をなくすため
になされたものであり、その目的とするところは
インナキヤツプの円筒壁の一部を切欠いてエア通
気孔の開口部に水滴がたまりにくくし、もつてリ
ザーバ内への水滴の浸入を防止することである。 This invention was devised to eliminate such conventional problems, and its purpose is to cut out a part of the cylindrical wall of the inner cap to prevent water droplets from accumulating at the opening of the air vent. to prevent water droplets from entering the reservoir.

以下本考案の実施例を図面に基づいて説明す
る。第１図において１０はリザーバで、このリザ
ーバ１０は有底筒状のリザーバ本体１１と、この
リザーバ本体１１の上部にシール部材１２を介し
て折曲接合された上蓋１３より構成されている。
この上蓋１３には装着穴１４が形成され、これに
本考案のリザーバキヤツプ１５が装着されてい
る。 Embodiments of the present invention will be described below based on the drawings. In FIG. 1, reference numeral 10 denotes a reservoir, and this reservoir 10 is composed of a bottomed cylindrical reservoir body 11 and an upper lid 13 that is bent and joined to the upper part of the reservoir body 11 via a sealing member 12.
A mounting hole 14 is formed in the upper lid 13, into which a reservoir cap 15 of the present invention is mounted.

リザーバキヤツプ１５は、底板１６ａより下方
に折曲げられた円筒壁１６を有するアウタキヤツ
プ１６と、同じく底板１７ａより下方に折曲げら
れた円筒壁１７ｂを有するインナキヤツプ１７よ
り構成されている。これらアウタキヤツプ１６な
らびにインナキヤツプ１７は互いに重ね合せた状
態で溶接付けされ、その重ね合せ部にエア通気孔
１８が形成されている。このエア通気孔１８の一
端は前記円筒壁１６ｂおよび１７ｂの下端縁に開
口して大気に連通し、他端はインナキヤツプ１７
に形成された小孔１９を介してリザーバ１０の内
部に通じている。またインナキヤツプ１７の底板
１７ａには第２図に示すように両端を径方向に突
出された止め金２０が固定されている。この止め
金２０は前記装着穴１４に形成された通し溝２１
を通過して係止部２２の下方に位置され、さらに
リザーバキヤツプ１５を回転操作することにより
係止部２２に係合するようになつている。なお２
３はリング状のシールパツキンである。 The reservoir cap 15 is composed of an outer cap 16 having a cylindrical wall 16 bent below a bottom plate 16a, and an inner cap 17 having a cylindrical wall 17b bent below a bottom plate 17a. These outer cap 16 and inner cap 17 are welded together in an overlapping state, and an air vent hole 18 is formed in the overlapping portion. One end of this air vent 18 opens at the lower edge of the cylindrical walls 16b and 17b and communicates with the atmosphere, and the other end opens into the inner cap 17.
It communicates with the inside of the reservoir 10 through a small hole 19 formed in the reservoir 10 . Further, a stopper 20 is fixed to the bottom plate 17a of the inner cap 17, as shown in FIG. 2, with both ends protruding in the radial direction. This stopper 20 is connected to a through groove 21 formed in the mounting hole 14.
The reservoir cap 15 is positioned below the locking portion 22 by passing through the reservoir cap 15, and is engaged with the locking portion 22 by further rotating the reservoir cap 15. Note 2
3 is a ring-shaped seal packing.

本考案の要部は上記構成のリザーバキヤツプ１
５において、第３図に示すように前記エア通気孔
１８と対応するインナキヤツプ１７の円筒壁１７
ｂに切欠き２５を形成したことにある。この切欠
き２５によつて前記エア通気孔１８は円筒壁１７
ｂの下端縁より上方に開口するため、前記エア通
気孔１８の毛細管現象に伴う水滴のリザーバ１０
内への侵入を防止することができる。 The main part of this invention is the reservoir cap 1 with the above configuration.
5, as shown in FIG.
The reason is that a notch 25 is formed in b. This notch 25 allows the air vent 18 to be connected to the cylindrical wall 17.
Since the opening is upward from the lower edge of the air vent hole 18, the water droplet reservoir 10 due to the capillary phenomenon of the air vent hole 18 is formed.
It is possible to prevent intrusion into the interior.

上記のように本考案のリザーバキヤツプは、イ
ンナキヤツプに切欠きを形成するだけの簡単な構
成で水滴の侵入を効果的に防止することができる
利点を有する。 As described above, the reservoir cap of the present invention has the advantage of being able to effectively prevent the intrusion of water droplets with a simple structure of just forming a notch in the inner cap.

[Brief explanation of drawings]

図面は本考案の実施例を示し、第１図は本考案
のリザーバキヤツプの要部断面図、第２図は第１
図の矢視図、第３図は第１図の−線矢視断
面図である。１５……リザーバキヤツプ、１６……アウタキ
ヤツプ、１７……インナキヤツプ、１６ａ，１７
ａ……底板、１６ｂ，１７ｂ……円筒壁、１８…
…エア通気孔、２５……切欠き。 The drawings show an embodiment of the present invention, and FIG. 1 is a cross-sectional view of the main part of the reservoir cap of the present invention, and FIG.
FIG. 3 is a sectional view taken along the - line in FIG. 1. 15... Reservoir cap, 16... Outer cap, 17... Inner cap, 16a, 17
a...Bottom plate, 16b, 17b...Cylindrical wall, 18...
...Air vent, 25...notch.

Claims

[Scope of utility model registration request]

In the reservoir cap, an outer cap and an inner cap each having a cylindrical wall bent downward from a bottom plate are stacked on top of each other, and one end of an air vent formed in the overlapped portion is opened at the lower edge of the cylindrical wall. A reservoir cap characterized in that a notch is formed in a cylindrical wall portion of the inner cap corresponding to an air vent.