JPH0239097Y2 - - Google Patents
Info
- Publication number
- JPH0239097Y2 JPH0239097Y2 JP2214086U JP2214086U JPH0239097Y2 JP H0239097 Y2 JPH0239097 Y2 JP H0239097Y2 JP 2214086 U JP2214086 U JP 2214086U JP 2214086 U JP2214086 U JP 2214086U JP H0239097 Y2 JPH0239097 Y2 JP H0239097Y2
- Authority
- JP
- Japan
- Prior art keywords
- rod guide
- diameter
- rod
- peripheral surface
- cylindrical neck
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 240000001549 Ipomoea eriocarpa Species 0.000 description 1
- 235000005146 Ipomoea eriocarpa Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Magnetically Actuated Valves (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、ガス口火安全器用電磁弁の特に弁体
のロツドを案内する為のロツドガイド部の改良に
関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electromagnetic valve for a gas headlight safety device, particularly to an improvement of a rod guide portion for guiding the rod of a valve body.
〔従来の技術及び考案が解決しようとする問題
点〕
第１図乃至第７図はこの種電磁石の従来例の要
部構造を示すものであるが、一般にこの種電磁弁
においては、垂直断面が大略馬蹄形の電磁石コア
１はアイレツト２によりボデー３に固定され、該
電磁石コア１の脚部には励磁コイル４が巻回され
ている。そして励磁コイル４の一端は図示しない
熱電対導線の一方に接続され得るボデー３の適所
に接続され、又他端は図示しない熱電対導線の他
方に接続され得る接続片５にアイレツト２の内部
を貫通して接続されている。又、ボデー３には筒
状ケース６が固着されていて、この筒状ケース６
には電磁石により吸着保持された時図示しないガ
ス通路を開放し電磁石が消磁された時スプリング
７により自動的に復帰せしめられてガス通路を遮
断し得る弁体８がロツドガイド９を介して摺動可
能に挿通されている。ところが、弁体８のロツド
８ａは黄銅製又はステンレス製のものが多く、更
にロツドガイド９は黄銅製又はアルミニウム製の
ものが多く且つケース６にかしめ着けられている
か又はケース６と一体的に形成されている場合が
多かつた。その為、ロツド８ａが摺動する際は金
属部分が互いに擦れあうことになるので、摩擦が
大きく摩耗粉を発生し易かつた。又、ロツド８ａ
の摺動を円滑にする為にロツドガイド９の孔部９
ａの表面を滑らかにすることが必要であるが、そ
の表面仕上げは難しく熟練を要するものであつ
た。そこで、ロツド８ａの摺動性を良くする為
に、第５図及び第６図に示したようにロツドガイ
ド９′及び９″を合成樹脂製にし且つ成形により各
孔部９′ａ及び９″ａの表面仕上げも良くすること
が考えられた。ところが、第５図に示した例のよ
うにロツドガイド９′をケース６にかしめ着けた
場合、かしめの工数がかかつてコストアツプとな
つたり、加温によるかしめはロツドガイド９′の
変形を起こし易く、又超音波利用のかしめによる
場合は粉が発生し易いという欠点があつた。又、
第６図に示した例のようにロツドガイド９″をケ
ース６に単に嵌合固定した場合、ロツドガイド
９″ががたつき易かつたり、ロツドガイド９″の他
方端面に弁体８のデイスク８ｂが当たつて該ロツ
ドガイド９″が上方に移動してしまい易いという
欠点があつた。更に、第７図に示した例のよう
に、筒状ケース６の頂壁の一部を上方へ折曲げて
周壁をねじ状に成形した筒状首部６ａを形成し、
この筒状首部６ａに下端面が筒状ケース６の頂壁
内面より上方に位置するようにロツドガイド９
を螺着して、第６図に示した例の欠点を除去する
ようにしたものであるが、この場合には加工が面
倒であるばかりか組立状態でのロツドガイド９
の孔部９ａの高精度のセンター出しは難しく量
産には不向きであると云う欠点があつた。[Problems to be solved by conventional techniques and inventions] Figures 1 to 7 show the structure of the main parts of conventional examples of this type of electromagnet. Generally, in this type of solenoid valve, the vertical cross section is A roughly horseshoe-shaped electromagnetic core 1 is fixed to a body 3 by an eyelet 2, and an excitation coil 4 is wound around the leg of the electromagnetic core 1. One end of the excitation coil 4 is connected to a suitable location on the body 3 which can be connected to one of the thermocouple conductors (not shown), and the other end is connected to the inside of the eyelet 2 to a connecting piece 5 which can be connected to the other of the thermocouple conductors (not shown). connected through. Further, a cylindrical case 6 is fixed to the body 3, and this cylindrical case 6
A valve body 8 is slidable via a rod guide 9, which opens a gas passage (not shown) when it is attracted and held by an electromagnet, and is automatically returned by a spring 7 to shut off the gas passage when the electromagnet is demagnetized. is inserted into. However, the rod 8a of the valve body 8 is often made of brass or stainless steel, and the rod guide 9 is often made of brass or aluminum, and is either crimped to the case 6 or formed integrally with the case 6. There were many cases where Therefore, when the rod 8a slides, the metal parts rub against each other, so the friction is large and abrasion particles are likely to be generated. Also, Rod 8a
The hole 9 of the rod guide 9 is
It is necessary to make the surface of a smooth, but the surface finishing is difficult and requires skill. Therefore, in order to improve the sliding properties of the rod 8a, as shown in FIGS. 5 and 6, the rod guides 9' and 9'' are made of synthetic resin, and the holes 9'a and 9''a are molded. It was also considered to improve the surface finish. However, when the rod guide 9' is caulked to the case 6 as shown in the example shown in FIG. 5, the number of caulking steps increases and the cost increases, and caulking due to heating tends to cause deformation of the rod guide 9'. The disadvantage of caulking using ultrasonic waves is that powder is likely to be generated. or,
If the rod guide 9'' is simply fitted and fixed to the case 6 as in the example shown in FIG. The disadvantage is that the rod guide 9'' tends to move upward over time. Further, as in the example shown in FIG. 7, a portion of the top wall of the cylindrical case 6 is bent upward to form a cylindrical neck portion 6a with a peripheral wall formed into a screw shape.
A rod guide 9 is attached to this cylindrical neck portion 6a so that its lower end surface is located above the inner surface of the top wall of the cylindrical case 6.
The disadvantages of the example shown in FIG.
The disadvantage is that it is difficult to center the hole 9a with high accuracy, making it unsuitable for mass production.
本考案は、上記の実情に鑑み、加工及び筒状ケ
ースへの取付けが簡単で而もロツドを極めて円滑
且つ確実に案内し得るロツドガイドを備えたガス
口火安全器用電磁弁を提供することを目的とす
る。 In view of the above-mentioned circumstances, the purpose of the present invention is to provide a solenoid valve for a gas starter safety device that is easy to process and attach to a cylindrical case, and is equipped with a rod guide that can guide the rod extremely smoothly and reliably. do.
本考案によれば、ロツドガイドには筒状首部に
嵌合し得る円形溝が孔部の外側にこれと同心的に
形成されていて、この円形溝の外方周面の直径は
筒状首部の外周面の直径よりも若干小さく又円形
溝の内方周面の直径は筒状首部の円周面の直径よ
りも若干小さくなるように寸法が選定されてい
る。従つて、ロツドガイドは圧入によつて筒状首
部に取付けられるが、筒状首部の内周面と円形溝
が内方周面との間には僅かな隙間があるため、圧
入によつてロツドガイド孔が変形するようなこと
はない。
According to the present invention, the rod guide has a circular groove that can fit into the cylindrical neck formed concentrically on the outside of the hole, and the diameter of the outer peripheral surface of the circular groove is equal to the diameter of the cylindrical neck. The diameter of the inner circumference of the circular groove is selected to be slightly smaller than the diameter of the outer circumference, and the diameter of the inner circumference of the circular groove is slightly smaller than the diameter of the circumference of the cylindrical neck. Therefore, the rod guide is attached to the cylindrical neck by press-fitting, but since there is a small gap between the inner circumferential surface of the cylindrical neck and the inner circumferential surface of the circular groove, the rod guide hole is fitted by press-fitting. There is no deformation.
以下、第１図乃至第３図を参照して本考案の一
実施例を説明すれば、１０はプレス成形により頂
部の中央を上方へ突出させて筒状の首部１０ａを
形成した筒状ケース、１１はロツドガイド孔１１
ａの外側にこれと同心的に首部１０ａが嵌入し得
る円形の溝１１ｂを設けた合成樹脂製のロツドガ
イドであつて、このロツドガイド１１は円形溝１
１ｂを首部１０ａに嵌合せしめることによりケー
ス１０上に固定される。この場合、円形溝１１ｂ
の外方周面の直径D1は筒状首部１０ａの外周面
の直径D2よりも若干（約0.1mm）小さく又円形溝
１１ｂの内方周面の直径d1は筒状首部１０ａの内
周面の直径d2よりも若干（約0.2mm）小さくなる
ように寸法が選定されている。尚、第１図及び第
２図から明らかなように、円形溝１１ｂの外方周
面の下端縁は筒状首部１０ａの立上り部外形に整
合するように外方へ朝顔形に開いている。その他
の構成は既述の従来例と同じであるため説明は省
略する。
Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 3. Reference numeral 10 denotes a cylindrical case in which a cylindrical neck portion 10a is formed by making the center of the top protrude upward by press molding; 11 is the rod guide hole 11
This rod guide 11 is made of synthetic resin and has a circular groove 11b concentrically arranged on the outside of the rod a into which the neck 10a can fit.
1b is fixed onto the case 10 by fitting it into the neck portion 10a. In this case, the circular groove 11b
The diameter D 1 of the outer peripheral surface of the circular groove 11b is slightly smaller (approximately 0.1 mm) than the diameter D 2 of the outer peripheral surface of the cylindrical neck 10a, and the diameter d 1 of the inner peripheral surface of the circular groove 11b is smaller than the diameter D 2 of the outer peripheral surface of the cylindrical neck 10a. The dimensions are selected to be slightly (approximately 0.2 mm) smaller than the circumferential diameter d2 . As is clear from FIGS. 1 and 2, the lower end edge of the outer peripheral surface of the circular groove 11b opens outward in a morning glory shape to match the outer shape of the rising portion of the cylindrical neck portion 10a. The other configurations are the same as those of the conventional example described above, so the explanation will be omitted.
本考案によるガス口火安全器用電磁弁は、上述
のように構成されているから、ロツドガイド１１
の筒状ケース１０への取付けは、筒状首部１０ａ
の円形溝１１ｂを嵌合せしめてロツドガイド１１
の筒状ケース１０に向けて強く押込むだけでよ
い。この場合、ロツドガイド１１は合成樹脂製で
ある上に円形溝１１ｂの外方周面の直径D1は筒
状首部１０ａの外周面の直径D2よりも若干小さ
いから、首部１０ａは僅かに内側へ絞られながら
円滑に溝１１ｂ内へ進入し、嵌入を終了した時は
ロツドガイド１１は首部１０ａ及び筒状ケース頂
部の外形にしつくり整合した状態で安定且つ確実
に取付けられ得る。而もこの状態で首部１０ａの
内周面と円形溝１１ｂの内方周面との間には僅か
な間隙が形成されるように予め寸法が選定されて
いるから、円形溝１１ｂ内への首部１０ａの圧入
によつてガイド孔１１ａの内面が変形を起こす懸
念は全くなく、極めて円滑且つ確実なロツドの摺
動運動を保証することができる。 Since the solenoid valve for a gas safety device according to the present invention is constructed as described above, the rod guide 11
The attachment to the cylindrical case 10 is performed using the cylindrical neck portion 10a.
The rod guide 11 is fitted with the circular groove 11b of the rod guide 11.
All you have to do is push it firmly toward the cylindrical case 10. In this case, since the rod guide 11 is made of synthetic resin and the diameter D 1 of the outer peripheral surface of the circular groove 11b is slightly smaller than the diameter D 2 of the outer peripheral surface of the cylindrical neck 10a, the neck 10a is moved slightly inward. The rod guide 11 smoothly enters the groove 11b while being squeezed, and when the insertion is completed, the rod guide 11 can be stably and reliably attached in a state in which the rod guide 11 matches the outer shape of the neck portion 10a and the top of the cylindrical case. In this state, the dimensions are selected in advance so that a slight gap is formed between the inner circumferential surface of the neck portion 10a and the inner circumferential surface of the circular groove 11b. There is no fear that the inner surface of the guide hole 11a will be deformed by press-fitting the rod 10a, and extremely smooth and reliable sliding movement of the rod can be guaranteed.
上述の如く本考案によれば、組立てが簡単であ
るにも拘らず極めて高性能のこの種口火安全器用
電磁弁を廉価に提供することができる。
As described above, according to the present invention, it is possible to provide this type of solenoid valve for a safety device at a low cost, which is easy to assemble and yet has extremely high performance.
第１図は本考案に係るロツドガイドの一例を示
す縦断面図、第２図は第１図に示したロツドガイ
ドに対応する筒状ケースの頂部縦断面図、第３図
は本考案に従うガス口火安全器用電磁弁の一実施
例のロツドガイド部の構造を示す断面図、第４図
は従来のガス口火安全器用電磁弁の要部構造を示
す縦断面図、第５図乃至第７図は互いに異なる従
来のロツドガイド部の構造を示す縦断面図であ
る。
１０……筒状ケース、１０ａ……筒状首部、１
１……ロツドガイド、１１ａ……ロツドガイド
孔、１１ｂ……円形溝。
Fig. 1 is a vertical cross-sectional view showing an example of the rod guide according to the present invention, Fig. 2 is a vertical cross-sectional view of the top of a cylindrical case corresponding to the rod guide shown in Fig. 1, and Fig. 3 is a gas pilot safety according to the present invention. A cross-sectional view showing the structure of a rod guide part of an embodiment of the handy solenoid valve, FIG. 4 is a longitudinal cross-sectional view showing the structure of the main part of a conventional solenoid valve for a gas safety device, and FIGS. 5 to 7 are different conventional solenoid valves. FIG. 10... Cylindrical case, 10a... Cylindrical neck, 1
1... Rod guide, 11a... Rod guide hole, 11b... Circular groove.
Claims (1)
するように固着されていて頂壁の一部を上方へ折
曲げて筒状首部を形成した筒状ケースと、上記筒
状首部に下端面が上記筒状ケースの頂壁内面より
上方に位置するように嵌着された合成樹脂製ロツ
ドガイドと、該ロツドガイドに摺動可能に挿通さ
れていて下端に上記電磁石に吸着され得るデイス
クを又上端にガス通路を遮断し得る弁体を夫々固
着したロツドと、該ロツドを上記デイスクが上記
電磁石から離間する方向へ弾圧するスプリングと
を備えたガス口火安全器用電磁弁において、ロツ
ドガイドと筒状首部との嵌着が、外方周面の直径
が筒状首部の外周面の直径よりも若干小さく且つ
内方周面の直径が筒状首部の内周面の直径よりも
若干小さくなるようにロツドガイドに形成された
円形溝内へ筒状首部を圧入することにより行われ
ていることを特徴としたガス口火安全器用電磁
弁。 A cylindrical case is fixed to a body supporting an electromagnet core so as to surround the electromagnet, and has a cylindrical neck portion formed by bending a portion of the top wall upward; A rod guide made of synthetic resin is fitted so as to be positioned above the inner surface of the top wall of the case, a disk is slidably inserted into the rod guide and can be attracted to the electromagnet at the lower end, and a gas passage is provided at the upper end. In a solenoid valve for a gas starter safety device, the solenoid valve is equipped with a rod to which a valve body capable of shutting off is fixed, and a spring that presses the rod in a direction in which the disc moves away from the electromagnet. , a circular shape formed in the rod guide such that the diameter of the outer peripheral surface is slightly smaller than the diameter of the outer peripheral surface of the cylindrical neck, and the diameter of the inner peripheral surface is slightly smaller than the diameter of the inner peripheral surface of the cylindrical neck. A solenoid valve for a gas head safety device, characterized in that the valve is operated by press-fitting a cylindrical neck into a groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2214086U JPH0239097Y2 (en) | 1986-02-20 | 1986-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2214086U JPH0239097Y2 (en) | 1986-02-20 | 1986-02-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62134976U JPS62134976U (en) | 1987-08-25 |
| JPH0239097Y2 true JPH0239097Y2 (en) | 1990-10-19 |
Family
ID=30819240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2214086U Expired JPH0239097Y2 (en) | 1986-02-20 | 1986-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0239097Y2 (en) |
-
1986
- 1986-02-20 JP JP2214086U patent/JPH0239097Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62134976U (en) | 1987-08-25 |
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