JPH0213743Y2 - - Google Patents
Info
- Publication number
- JPH0213743Y2 JPH0213743Y2 JP1984000544U JP54484U JPH0213743Y2 JP H0213743 Y2 JPH0213743 Y2 JP H0213743Y2 JP 1984000544 U JP1984000544 U JP 1984000544U JP 54484 U JP54484 U JP 54484U JP H0213743 Y2 JPH0213743 Y2 JP H0213743Y2
- Authority
- JP
- Japan
- Prior art keywords
- main body
- filter
- locking
- support body
- support
- 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
- 239000000446 fuel Substances 0.000 claims description 19
- 239000002828 fuel tank Substances 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 description 7
- 238000001914 filtration Methods 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Description
【考案の詳細な説明】
〔考案の目的〕
（産業上の利用分野）
本考案は、チエンソー、刈払機等に使用する小
型エンジン用の燃料パイプに係るものである。[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to a fuel pipe for a small engine used in a chain saw, brush cutter, etc.
（従来技術）
従来、この種の燃料パイプは、燃料タンク内の
底部に１端を挿入し、他端を気化器に連通して設
けられ、この燃料タンク内の端部には、第３図に
示すごとく、軸方向に通過するフイルター５７が
設けられており、この構成においては、フイルタ
ー５７の濾過面積が小さく、濾過性能が良好でな
かつた。このフイルターの濾過面積を大きくする
ために、半径方向に通過する、表面積の大きい筒
状のフイルターを用いたものがあるが、たとえ
ば、第４図に示すごとく、燃料パイプ６７の端部
に係合する本体６９と、この本体６９の内径部７
０に１端を嵌合する支持体７３と、この支持体７
３の外周に設けられて本体６９の内径孔７０に連
通する切欠溝７１と、この切欠溝７１を覆つて支
持体７３の外周に嵌合する多孔性材料よりなる筒
状のフイルター７５とを設け、この組付けにあた
つては支持体７３を本体６９に押し込むことによ
つて係合するもので、確実に係合させるためには
係脱の際に大きな力を必要とし、反対に係脱の力
を小さくすると係合が不確実となるものでありま
す。この係合手段をねじ、スナツプリング等を用
いることも考がえられるが、構造が複雑となり、
あるいは加工が厄介となるもので、目詰まりのた
めの清掃を頻繁に行なう必要のあるこの種の燃料
パイプに適したものがなかつた。(Prior Art) Conventionally, this type of fuel pipe is provided with one end inserted into the bottom of the fuel tank and the other end communicating with the carburetor. As shown in FIG. 2, a filter 57 is provided that passes through the filter in the axial direction, and in this configuration, the filtration area of the filter 57 is small and the filtration performance is not good. In order to increase the filtration area of this filter, some filters use a cylindrical filter with a large surface area that passes through the filter in the radial direction.For example, as shown in FIG. a main body 69 and an inner diameter portion 7 of this main body 69
a support 73 whose one end fits into the support 7;
A notched groove 71 provided on the outer periphery of 3 and communicating with the inner diameter hole 70 of the main body 69, and a cylindrical filter 75 made of a porous material that covers the notched groove 71 and fits on the outer periphery of the support body 73. In this assembly, the support body 73 is engaged by pushing it into the main body 69, and in order to ensure the engagement, a large force is required when engaging and disengaging; If the force is reduced, the engagement becomes uncertain. It is conceivable to use screws, snap springs, etc. as this engagement means, but the structure would be complicated and
Otherwise, it was difficult to process, and there was no suitable material for this type of fuel pipe, which required frequent cleaning to prevent clogging.
（課題を解決するための手段）
本考案は、燃料タンク内の端部に係合する本体
と、本体の内径部に１端を嵌合して、弁座を備え
た支持体と、弁座に当接自在の球状の弁体と、支
持体の外周に設けられて弁座に連通する切欠溝
と、この切欠溝を覆つて支持体の外周に嵌合する
多孔性材料よりなるフイルターとを設け、このフ
イルターを、支持体の端部に設けた段部と本体の
端面との間に挾持するとともに、この支持体の端
面に設けた係止部にコの字状の係止金具の中央底
部を係止し、この係止金具の両側端部を本体の側
部に設けた係止部に係止して設けたものである。(Means for Solving the Problems) The present invention includes a main body that engages with an end inside a fuel tank, a support body that has one end fitted into the inner diameter of the main body and is provided with a valve seat, and a support body that is provided with a valve seat. A spherical valve body that can freely come into contact with the valve seat, a notched groove provided on the outer periphery of the support body and communicating with the valve seat, and a filter made of a porous material that fits on the outer periphery of the support body and covers this notched groove. The filter is sandwiched between the stepped part provided at the end of the support body and the end face of the main body, and the center of the U-shaped locking metal fitting is attached to the locking part provided at the end face of the support body. The bottom part is locked, and both ends of the locking metal fittings are locked to locking parts provided on the sides of the main body.
（作 用）
燃料は、支持体の外周の筒状のフイルターを通
過して弁体を押しのけて燃料パイプ内に吸引され
る。フイルターは筒状に形成されているので、濾
過面積が大きく、また弁体は弁座に線接触して接
触面積が小さい。しかもフイルターは支持体の外
周に嵌合して、支持体の先端を本体に嵌入してコ
の字型の係止金具で係止するので、構造簡単で、
着脱容易である。(Function) Fuel passes through the cylindrical filter on the outer periphery of the support, pushes aside the valve body, and is sucked into the fuel pipe. Since the filter is formed into a cylindrical shape, the filtration area is large, and the valve body is in line contact with the valve seat, so the contact area is small. Moreover, the filter fits around the outer circumference of the support, and the tip of the support is inserted into the main body and locked with a U-shaped locking fitting, so the structure is simple.
Easy to put on and take off.
（実施例）
以下、図面により本考案の１実施例について詳
細な説明を行なう。(Embodiment) Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.
第１図、第２図において、１は燃料パイプで、
合成樹脂等の可撓性の材料よりなり、１端は燃料
タンク３の底部に挿入され、他端は手動ポンプ
（図示せず）を介して気化器（図示せず）に連通
している。５は燃料パイプ１の燃料タンク３内の
端部に係合された逆止弁でつぎのように構成され
ている。すなわち、７は１端に燃料パイプ１に嵌
合する筒状の係合部９を備えた本体で、内部に設
けた空胴部１１に、円錐形の弁座１３を備えた支
持体１５が嵌合し、球状の弁体１７が遊動自在に
収容されている。空胴部１１は連通孔１９によつ
て燃料パイプ１に連通し、連通孔１９の内方の開
口縁部に切欠溝２１が設けられている。２３は支
持体１５の外周に設けた切欠溝２４を覆つて支持
体１５の外周に嵌合する筒状のフイルターで、支
持体１５に設けた連通孔２５を介して中心に設け
た中心孔２７に連通し、さらに弁座１３を通過し
て空胴部１１に通じている。２９は弾性材料より
なるコの字型の係止金具で、支持体１５の端部に
設けた溝状の係止部３１に中央底部を係合し、両
側端部は本体７に設けた溝状の係止部３３に係止
する係止片３５を備え、支持体１５の端部に設け
た段部３７と本体７の端面との間にフイルター２
３を押圧、挾持している。 In Figures 1 and 2, 1 is a fuel pipe;
It is made of a flexible material such as synthetic resin, and one end is inserted into the bottom of the fuel tank 3, and the other end communicates with a carburetor (not shown) via a manual pump (not shown). Reference numeral 5 denotes a check valve that is engaged with the end of the fuel pipe 1 inside the fuel tank 3, and is constructed as follows. That is, 7 is a main body equipped with a cylindrical engagement part 9 that fits into the fuel pipe 1 at one end, and a support body 15 equipped with a conical valve seat 13 is provided in a hollow part 11 provided inside. They fit together, and a spherical valve body 17 is housed in a freely movable manner. The cavity 11 communicates with the fuel pipe 1 through a communication hole 19, and a cutout groove 21 is provided at the inner opening edge of the communication hole 19. Reference numeral 23 denotes a cylindrical filter that fits on the outer periphery of the support 15 so as to cover the cutout groove 24 provided on the outer periphery of the support 15, and a central hole 27 provided in the center through the communication hole 25 provided in the support 15. It also communicates with the cavity 11 through the valve seat 13 . Reference numeral 29 denotes a U-shaped locking metal fitting made of an elastic material, the center bottom of which engages with a groove-shaped locking portion 31 provided at the end of the support body 15, and the both end portions engage grooves provided in the main body 7. The filter 2 is provided with a locking piece 35 that locks on the locking portion 33 having a shape, and the filter 2
3 is pressed and held.
以上の実施例において、手動ポンプ（図示せ
ず）を作動させると、圧力時には弁体１７が弁座
１３に押圧閉鎖され、燃料パイプ１内の燃料は気
化器（図示せず）の方に送られる。手動ポンプの
手を弛めて吸引時には、気化器側の逆止弁（図示
せず）が閉鎖し、燃料タンク３側の逆止片５の弁
体１７が開き、燃料タンク３内の燃料はフイルタ
ー２３、切欠溝２４、連通孔２５、中心孔２７を
経て燃料パイプ１内に吸引されるものである。こ
の逆止弁５を組み付けるにあたつては、本体７の
空胴部１１内に弁体１７を収容し、支持体１５の
外周にフイルター２３を嵌合して、支持体１５の
先端を空胴部１１に挿入し、係止金具２９を支持
体１５の係止部３１に係合して、係止片３５を係
止部３３に係止して、フイルター２３を、本体７
の端面と支持体１５の段部３７との間に押圧、挾
持するものである。 In the above embodiment, when the manual pump (not shown) is operated, the valve body 17 is pressed against the valve seat 13 when pressure is applied, and the fuel in the fuel pipe 1 is sent to the carburetor (not shown). It will be done. When the hand of the manual pump is relaxed and suction is performed, the check valve (not shown) on the carburetor side closes, the valve body 17 of the check piece 5 on the fuel tank 3 side opens, and the fuel in the fuel tank 3 is released. The fuel is sucked into the fuel pipe 1 through the filter 23, the cutout groove 24, the communication hole 25, and the center hole 27. When assembling this check valve 5, the valve body 17 is accommodated in the cavity 11 of the main body 7, the filter 23 is fitted around the outer periphery of the support 15, and the tip of the support 15 is The filter 23 is inserted into the body 11, the locking fitting 29 is engaged with the locking part 31 of the support body 15, the locking piece 35 is locked with the locking part 33, and the filter 23 is attached to the main body 7.
It is pressed and clamped between the end face of the support body 15 and the stepped portion 37 of the support body 15.
本考案によれば、弁体と弁座が線接触をするの
で、粘着することがなく、作動が確実で、またフ
イルターの濾過面積が大きくて、しかも構造簡単
で安価に製作することができ、着脱容易でフイル
ターの清掃が容易となるものである。
According to the present invention, since the valve body and the valve seat are in line contact, there is no sticking, the operation is reliable, the filtration area of the filter is large, and the structure is simple and can be manufactured at low cost. It is easy to attach and detach, making it easy to clean the filter.
また、コの字型の係止金具を用いることによつ
て、構造簡単な、製造容易な係止金具以外に係止
用の部品を必要とせず、係脱に際しては工具を必
要とせず、きわめて容易に着脱でき、係止が確実
である。また係止部は本体、支持体の成型の際に
同時に容易に形成できるものである。 In addition, by using a U-shaped locking metal fitting, no locking parts are required other than the simple structure and easy-to-manufacture locking metal fitting, and no tools are required for locking/unlocking. It can be easily attached and detached and locks securely. Further, the locking portion can be easily formed at the same time as the main body and support are molded.
なお、第３図は従来例を示すもので、ゴム製の
燃料パイプ５３の端部に、合成樹脂製の本体５５
とフイルター５７を嵌合し、本体５５内の空胴部
５９に、弁孔６１、弁孔６１を開閉する金属製の
板状の弁体６３、スナツプリング６５が設けられ
ている。 Note that FIG. 3 shows a conventional example, in which a main body 55 made of synthetic resin is attached to the end of a fuel pipe 53 made of rubber.
A valve hole 61, a metal plate-shaped valve body 63 for opening and closing the valve hole 61, and a snap ring 65 are provided in the cavity 59 in the main body 55, into which the filter 57 is fitted.
また、第４図は他の従来例を示すもので、燃料
パイプ６７の先端に本体６９が一体に、軟質の合
成樹脂で形成され、内径孔７０に、外周に切欠溝
７１を設けた支持体７３の１端が押し込まれて係
止している。切欠溝７１は燃料パイプ６７に連通
している。支持体７３の外周には切欠溝７１を覆
つて円筒状のフイルター７５が設けられ、支持体
７３の先端の段部７７と本体６９との間に挾持さ
れている。 Further, FIG. 4 shows another conventional example, in which a main body 69 is integrally formed at the tip of a fuel pipe 67, a support body is formed of soft synthetic resin, and an inner diameter hole 70 is provided with a cutout groove 71 on the outer periphery. One end of 73 is pushed in and locked. The cutout groove 71 communicates with the fuel pipe 67. A cylindrical filter 75 is provided on the outer periphery of the support 73 to cover the cutout groove 71 and is held between the step 77 at the tip of the support 73 and the main body 69.
第１図、第２図はそれぞれ本考案の１実施例の
側断面図、平断面図、第３図は従来例の側断面
図、第４図は他の従来例の側断面図である。
３……燃料タンク、７……本体、１３……弁
座、１５……支持体、１７……弁体、２３……フ
イルター、２４……切欠溝、２９……係止金具、
３１……係止部、３３……係止部、３７……段
部。
1 and 2 are a side sectional view and a plan sectional view of one embodiment of the present invention, FIG. 3 is a side sectional view of a conventional example, and FIG. 4 is a side sectional view of another conventional example. 3... Fuel tank, 7... Main body, 13... Valve seat, 15... Support body, 17... Valve body, 23... Filter, 24... Notch groove, 29... Locking metal fitting,
31...Locking part, 33...Locking part, 37...Step part.
Claims (1)
気化器に連通する燃料パイプにおいて、前記燃料
タンク３内の端部に係合する本体７と、前記本体
７の内径部に１端を嵌合して、弁座１３を備えた
支持体１５と、前記弁座１３に当接自在の球状の
弁体１７と、前記支持体１５の外周に設けられて
前記弁座１３に連通する切欠溝２４と、前記切欠
溝２４を覆つて前記支持体１５の外周に嵌合する
多孔性材料よりなる筒状のフイルター２３とを設
け、前記フイルター２３を、前記支持体１５の端
部に設けた段部３７と前記本体７の端面との間に
挾持するとともに、前記支持体１５の端面に設け
た係止部３１にコの字状の係止金具２９の中央部
を係止し、前記係止金具２９の両側端部を前記本
体７の側部に設けた係止部３３に係止して設けた
ことを特徴とする燃料パイプ。 A fuel pipe having one end inserted into the bottom of the fuel tank 3 and the other end communicating with the carburetor includes a main body 7 that engages with the end inside the fuel tank 3, and one end connected to the inner diameter of the main body 7. a support body 15 having a valve seat 13; a spherical valve element 17 that can freely come into contact with the valve seat 13; A notch groove 24 and a cylindrical filter 23 made of a porous material that fits on the outer periphery of the support body 15 while covering the notch groove 24 are provided, and the filter 23 is provided at an end of the support body 15. The center portion of the U-shaped locking fitting 29 is held between the stepped portion 37 and the end surface of the main body 7, and the center portion of the U-shaped locking fitting 29 is locked to the locking portion 31 provided on the end surface of the support body 15. A fuel pipe characterized in that both end portions of the locking fittings 29 are locked to locking portions 33 provided on the sides of the main body 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54484U JPS60112667U (en) | 1984-01-09 | 1984-01-09 | fuel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54484U JPS60112667U (en) | 1984-01-09 | 1984-01-09 | fuel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60112667U JPS60112667U (en) | 1985-07-30 |
| JPH0213743Y2 true JPH0213743Y2 (en) | 1990-04-16 |
Family
ID=30472484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54484U Granted JPS60112667U (en) | 1984-01-09 | 1984-01-09 | fuel pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60112667U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS424881Y1 (en) * | 1964-06-13 | 1967-03-14 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53138018U (en) * | 1977-04-08 | 1978-11-01 | ||
| JPS55135150U (en) * | 1979-03-19 | 1980-09-25 | ||
| JPS58124658U (en) * | 1982-02-19 | 1983-08-24 | 株式会社ウオルブロ−フア−イ−スト | Parallel fuel piping for diaphragm type carburetor |
-
1984
- 1984-01-09 JP JP54484U patent/JPS60112667U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS424881Y1 (en) * | 1964-06-13 | 1967-03-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60112667U (en) | 1985-07-30 |