JPH0168231U - - Google Patents
Info
- Publication number
- JPH0168231U JPH0168231U JP1987162090U JP16209087U JPH0168231U JP H0168231 U JPH0168231 U JP H0168231U JP 1987162090 U JP1987162090 U JP 1987162090U JP 16209087 U JP16209087 U JP 16209087U JP H0168231 U JPH0168231 U JP H0168231U
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- pressure valve
- pressurizing
- vent
- receiving plate
- 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.)
- Granted
Links
- 239000002828 fuel tank Substances 0.000 claims description 8
- 238000009423 ventilation Methods 0.000 claims 3
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Closures For Containers (AREA)
- Safety Valves (AREA)
Description
第１図は本考案に係る燃料タンク用キヤツプの
一実施例を示す縦断面図である。第２図は第１図
の負加圧弁受け板付近を拡大して示す縦断面図で
ある。第３図は第１図のロールオーバーバルブを
示す斜視図である。第４図は第１図の燃料タンク
用キヤツプの車両転倒時の負加圧弁受け板付近を
拡大して示す縦断面図である。第５図及び第６図
はそれぞれ従来の燃料タンク用キヤツプを示す縦
断面図である。
〔主要な部分の符号の説明〕、４１……キヤツ
プ本体、５３……負加圧弁受け板、５５……加圧
弁機構、５７……負圧弁機構、７３……負圧弁、
８１……下支持板、８２……負圧弁スプリング、
８３……ロールオーバーバルブ。
FIG. 1 is a longitudinal sectional view showing an embodiment of a fuel tank cap according to the present invention. FIG. 2 is an enlarged vertical sectional view showing the vicinity of the negative pressure valve receiving plate in FIG. 1. FIG. 3 is a perspective view of the rollover valve of FIG. 1. FIG. 4 is an enlarged vertical cross-sectional view of the vicinity of the negative pressure valve receiving plate of the fuel tank cap shown in FIG. 1 when the vehicle falls over. FIGS. 5 and 6 are longitudinal cross-sectional views showing conventional fuel tank caps, respectively. [Description of symbols of main parts], 41... Cap body, 53... Negative pressure valve receiving plate, 55... Pressure valve mechanism, 57... Negative pressure valve mechanism, 73... Negative pressure valve,
81... Lower support plate, 82... Negative pressure valve spring,
83...Rollover valve.
Claims (1)
この負加圧弁受け板の上部に加圧弁機構を設け、
前記負加圧弁受け板の下部に負圧弁機構を設ける
と共に、この負圧弁機構を構成する負圧弁を、前
記キヤツプ本体に固定される下支持板に一端を支
持される負圧弁スプリングの他端により付勢して
なる燃料タンク用キヤツプにおいて、前記負圧弁
スプリングの内部に、ロールオーバーバルブを移
動自在に配置したことを特徴とする燃料タンク用
キヤツプ。 (2) 下支持板は、負圧弁スプリングの下端が位
置する部位の外側に負加圧用通気孔を有している
実用新案登録請求の範囲第１項の燃料タンク用キ
ヤツプ。 (3) 負圧弁機構は、負圧用通気孔と加圧用通気
孔を有する負加圧弁受け板と、この負加圧弁受け
板の下部に設けられた負加圧用通気孔を有する負
圧弁と、この負圧弁の下部に設けられた負加圧用
通気孔を有する円板体と、この円板体の下方に配
置されキヤツプ本体に固定される下支持板と、こ
の下支持板と前記円板体との間に設けられ前記円
板体を前記負圧弁へ付勢する負圧弁スプリングと
、この負圧弁スプリングの下部に位置する前記下
支持板に設けられた負加圧用通気孔とからなり、
前記負加圧弁受け板の前記加圧用通気孔、前記負
圧弁の負加圧用通気孔、前記円板体の負加圧用通
気孔をそれぞれ相互に連通してなる実用新案登録
請求の範囲第１項又は第２項記載の燃料タンク用
キヤツプ。 (4) 加圧弁機構は、負加圧弁受け板の加圧用通
気孔の上部に設けられる加圧弁と、前記加圧弁の
上方に設けられると共に負加圧用通気孔を有しキ
ヤツプ本体に固定される上支持板と、前記上支持
板と前記加圧弁との間に設けられ前記加圧弁を前
記加圧用通気孔へ付勢する加圧弁スプリングとか
らなる実用新案登録請求の範囲第１項乃至第３項
記載の何れか１項記載の燃料タンク用キヤツプ。 (5) ロールオーバーバルブは、短円柱状部の両
端面に円錐状の突起を形成してなる実用新案登録
請求の範囲第１項乃至第４項記載の何れか１項記
載の燃料タンク用キヤツプ。[Scope of claim for utility model registration] (1) A negative pressure valve receiving plate is provided inside the cap body,
A pressure valve mechanism is provided on the top of this negative pressure valve receiving plate,
A negative pressure valve mechanism is provided at the lower part of the negative pressure valve receiving plate, and the negative pressure valve constituting the negative pressure valve mechanism is supported by the other end of a negative pressure valve spring whose one end is supported by a lower support plate fixed to the cap body. 1. A biased fuel tank cap, characterized in that a rollover valve is movably disposed inside the negative pressure valve spring. (2) The fuel tank cap according to claim 1, wherein the lower support plate has a negative pressure ventilation hole on the outside of the portion where the lower end of the negative pressure valve spring is located. (3) The negative pressure valve mechanism includes a negative pressure valve receiving plate having a negative pressure vent and a pressurizing vent, a negative pressure valve having a negative pressure vent provided at the bottom of the negative pressure valve receiving plate, and the negative pressure valve receiving plate having a negative pressure vent and a pressurizing vent. A disc body having a negative pressure ventilation hole provided at the bottom of the negative pressure valve, a lower support plate disposed below the disc body and fixed to the cap body, and the lower support plate and the disc body a negative pressure valve spring provided between the negative pressure valve spring and biasing the disc body toward the negative pressure valve; and a negative pressure ventilation hole provided in the lower support plate located below the negative pressure valve spring;
Utility model registration claim 1, wherein the pressurizing vent hole of the negative pressure valve receiving plate, the negative pressurizing vent hole of the negative pressure valve, and the negative pressurizing vent hole of the disc body are connected to each other. Or the fuel tank cap described in item 2. (4) The pressurizing valve mechanism has a pressurizing valve provided above the pressurizing vent of the negative pressurizing valve receiving plate, and a negative pressurizing vent provided above the pressurizing valve, and is fixed to the cap body. Utility model registration claims 1 to 3, comprising an upper support plate, and a pressure valve spring provided between the upper support plate and the pressure valve and urging the pressure valve toward the pressurization vent. A fuel tank cap according to any one of the items listed in 1. (5) The rollover valve is a fuel tank cap according to any one of claims 1 to 4 of the utility model registration claim, which is formed by forming conical protrusions on both end faces of a short cylindrical part. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16209087U JPH0630521Y2 (en) | 1987-10-23 | 1987-10-23 | Fuel tank cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16209087U JPH0630521Y2 (en) | 1987-10-23 | 1987-10-23 | Fuel tank cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0168231U true JPH0168231U (en) | 1989-05-02 |
| JPH0630521Y2 JPH0630521Y2 (en) | 1994-08-17 |
Family
ID=31445602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16209087U Expired - Lifetime JPH0630521Y2 (en) | 1987-10-23 | 1987-10-23 | Fuel tank cap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0630521Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09109702A (en) * | 1995-10-20 | 1997-04-28 | Calsonic Corp | Cap for gasoline tank |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019117195A1 (en) * | 2017-12-13 | 2019-06-20 | 住友建機株式会社 | Excavator |
-
1987
- 1987-10-23 JP JP16209087U patent/JPH0630521Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09109702A (en) * | 1995-10-20 | 1997-04-28 | Calsonic Corp | Cap for gasoline tank |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0630521Y2 (en) | 1994-08-17 |
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