JPH031353Y2 - - Google Patents
Info
- Publication number
- JPH031353Y2 JPH031353Y2 JP4654287U JP4654287U JPH031353Y2 JP H031353 Y2 JPH031353 Y2 JP H031353Y2 JP 4654287 U JP4654287 U JP 4654287U JP 4654287 U JP4654287 U JP 4654287U JP H031353 Y2 JPH031353 Y2 JP H031353Y2
- Authority
- JP
- Japan
- Prior art keywords
- float
- coil spring
- valve chamber
- tank cap
- breather passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000031872 Body Remains Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は主として自動二輪車等に用いられるタ
ンクキヤツプに関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention mainly relates to a tank cap used for motorcycles and the like.
従来のタンクキヤツプは第５図に示す如く、カ
バー１の内面に設けられたインナー２の中央に円
筒状の弁室３を設けると共にその上下部にブリー
ザー通路４，５を形成し、該弁室の下部に圧縮コ
イルバネ６を設け、その上に垂直時においては該
コイルバネを圧縮状態に保つ重さのスチールボー
ル７を下部のブリーザー通路５の上方に設けると
共にその上部に小ボール８を設け、タンクの転倒
時に圧縮コイルバネ６の圧力によりスチールボー
ル７を押し上げ、その上の小ボール８にて上部の
ブリーザー通路４を塞いでガソリンの流出を防止
するものが一般的なものであつた。しかし、この
従来のスチールボールを利用したタンクキヤツプ
用のバルブにおいては、自動二輪車の急加速時や
急減速時においても、車体は垂直状態であり、ブ
リーザー通路が開放状態であるため、タンク内の
ガソリンが慣性により波打ち、弁室内のスチール
ボールを押し上げることなくブリーザー通路を通
じて漏れることがあつた。
As shown in Fig. 5, a conventional tank cap has a cylindrical valve chamber 3 in the center of an inner 2 provided on the inner surface of a cover 1, and has breather passages 4 and 5 formed in the upper and lower portions of the valve chamber. A compression coil spring 6 is provided at the bottom of the tank, and a steel ball 7 with a weight that keeps the coil spring in a compressed state when vertical is provided above the breather passage 5 at the bottom, and a small ball 8 is provided above it. When a bicycle falls over, the pressure of a compression coil spring 6 pushes up a steel ball 7, and a small ball 8 on top of the steel ball 8 closes the upper breather passage 4 to prevent gasoline from flowing out. However, with this conventional tank cap valve that uses steel balls, even when the motorcycle is suddenly accelerating or decelerating, the motorcycle body remains vertical and the breather passage is open, so the inside of the tank remains open. Gasoline sometimes rippled due to inertia and leaked through the breather passage without pushing up the steel ball in the valve chamber.
本考案は上記した従来の問題点を解決したもの
で、慣性によりタンク内のガソリンが弁室内に入
り込んできても、上部のブリーザー通路を塞ぐよ
うにし、弁室内の下部に配置した圧縮コイルバネ
６の上方に垂直時において該コイルバネを圧縮状
態に保つ重さの板状の重り９を上下摺動可能に設
けると共に、この上に筒状のフロート１０を上記
と同じく上下摺動可能に設けたことを特徴とする
もので、弁室３内にガソリンが入り込んだ際に浮
力が働いてフロート１０が上昇し、上部のブリー
ザー通路４を閉じるようにしたものである。
The present invention solves the above-mentioned conventional problems. Even if gasoline in the tank enters the valve chamber due to inertia, the upper breather passage is blocked, and the compression coil spring 6 placed at the lower part of the valve chamber is designed to block the upper breather passage. A plate-shaped weight 9 having the weight to keep the coil spring in a compressed state when vertical is provided so as to be slidable up and down, and a cylindrical float 10 is provided above this so as to be able to be slid up and down in the same manner as above. This is characterized by the fact that when gasoline enters the valve chamber 3, buoyancy acts and the float 10 rises, closing the upper breather passage 4.
本考案においては、圧縮コイルバネ６の上方に
設ける重り９やその上のフロート１０の形状は特
に限定するものでなく、これは弁室３の形状やそ
の長さに応じた形状や大きさのものになることは
云うまでもない。しかし弁室の形状は、円筒形で
あることが加工面やフロートの作用面で望まし
い。また、フロートの材質についても比重の小さ
いものが必要であるが、発泡樹脂製のものがコス
トや成型の面で望ましい。 In the present invention, the shape of the weight 9 provided above the compression coil spring 6 and the float 10 thereon are not particularly limited, and these may have a shape and size depending on the shape and length of the valve chamber 3. Needless to say, it will become. However, it is desirable for the shape of the valve chamber to be cylindrical in terms of processing and float operation. Furthermore, the material of the float must have a low specific gravity, but a material made of foamed resin is preferable in terms of cost and molding.
本考案に係るタンクキヤツプ用のバルブの作用
を、第２〜４図に示す弁室のみの部分図面に基い
て説明する。
The operation of the tank cap valve according to the present invention will be explained based on partial drawings of only the valve chamber shown in FIGS. 2 to 4.
タンクキヤツプが垂直状態正常時においては、
第２図の如く板状の重り９と筒状のフロート１０
は、圧縮コイルバネ６を押圧した状態で弁室３の
下方に沈んだ状態にある。次いで急加減速時の際
には、弁室は第３図の如く垂直状態を保つてお
り、タンク内のガソリンは、下部のブリーザー通
路５から弁室３内に入るが、板状の重り９を上へ
押し上げるだけのエネルギーがないため、弁室内
ではガソリンの浮力により、フロート１０が上昇
し、上部のブリーザー通路４を塞ぎ弁室から外部
へのガソリン漏れを防止する。 When the tank cap is in a normal vertical position,
As shown in Fig. 2, a plate-shaped weight 9 and a cylindrical float 10
is in a state of being sunk below the valve chamber 3 with the compression coil spring 6 pressed. Next, during sudden acceleration/deceleration, the valve chamber remains vertical as shown in Figure 3, and gasoline in the tank enters the valve chamber 3 from the breather passage 5 at the bottom, but the plate-shaped weight 9 Since there is not enough energy to push the valve upward, the float 10 rises within the valve chamber due to the buoyancy of the gasoline, blocking the upper breather passage 4 and preventing gasoline from leaking from the valve chamber to the outside.
また、転倒時には第４図に示す如く、圧縮コイ
ルバネ６の圧力により板状の重り９と共にフロー
ト１０を上方（図面では右方）へ押圧し、フロー
ト先端部にて上部のブリーザー通路４を塞いでガ
ソリンの外部への漏れを防止する。 In addition, in the event of a fall, as shown in FIG. 4, the pressure of the compression coil spring 6 pushes the float 10 together with the plate-shaped weight 9 upwards (to the right in the drawing), and the tip of the float closes the upper breather passage 4. Prevents gasoline from leaking to the outside.
本考案は、上述の如くタンクキヤツプのバルブ
の構造として板状の重りと、フロートを組み合わ
せて用いたため二輪車の急加減速や急坂走行の際
においても、ガソリンが漏れることがない。ま
た、構造的にも極めて簡単なものであるためコス
トも安価であり、産業利用性の高いものである。
As described above, the present invention uses a combination of a plate-shaped weight and a float as the structure of the tank cap valve, so that gasoline will not leak even when the two-wheeled vehicle suddenly accelerates or decelerates or runs on a steep slope. Furthermore, since it is extremely simple in structure, it is inexpensive and has high industrial applicability.
第１図は、本考案の一例の縦断面図、第２図〜
第４図は、各状態におけるフロートの動きを示す
武分断面図。第５図は従来品の縦断面図である。
１……カバー、２……インナー、３……円筒状
の弁室、６……コイルバネ、９……板状の重り、
１０……フロート。
Figure 1 is a longitudinal sectional view of an example of the present invention, Figures 2-
FIG. 4 is a cross-sectional view showing the movement of the float in each state. FIG. 5 is a longitudinal sectional view of a conventional product. 1... Cover, 2... Inner, 3... Cylindrical valve chamber, 6... Coil spring, 9... Plate-shaped weight,
10...Float.
Claims (1)
ーザー通路のバルブの構造として、下部に配置
した圧縮コイルバネ６の上方に、垂直時におい
て該コイルバネを圧縮状態に保つ重さの板状の
重り９を上下摺動可能に設けると共に、この上
に筒状のフロート１０を同じく摺動可能に設け
たことを特徴とするタンクキヤツプ用バルブ。 ２ フロート１０が発泡樹脂製の円筒体である、
実用新案登録請求の範囲第１項記載のタンクキ
ヤツプ用バルブ。[Claims for Utility Model Registration] 1. As a structure of the valve of the breather passage provided in the inner part of the tank cap, a heavy plate is placed above the compression coil spring 6 disposed at the bottom to keep the coil spring in a compressed state when vertical. A tank cap valve characterized in that a shaped weight 9 is provided to be vertically slidable, and a cylindrical float 10 is also provided to be slidable thereon. 2. The float 10 is a cylindrical body made of foamed resin.
A tank cap valve according to claim 1 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4654287U JPH031353Y2 (en) | 1987-03-27 | 1987-03-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4654287U JPH031353Y2 (en) | 1987-03-27 | 1987-03-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63152787U JPS63152787U (en) | 1988-10-06 |
| JPH031353Y2 true JPH031353Y2 (en) | 1991-01-16 |
Family
ID=30866298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4654287U Expired JPH031353Y2 (en) | 1987-03-27 | 1987-03-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH031353Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5312965B2 (en) * | 2009-01-28 | 2013-10-09 | アイホン株式会社 | Electric lock device |
-
1987
- 1987-03-27 JP JP4654287U patent/JPH031353Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63152787U (en) | 1988-10-06 |
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