JPS6242956Y2 - - Google Patents
Info
- Publication number
- JPS6242956Y2 JPS6242956Y2 JP16872582U JP16872582U JPS6242956Y2 JP S6242956 Y2 JPS6242956 Y2 JP S6242956Y2 JP 16872582 U JP16872582 U JP 16872582U JP 16872582 U JP16872582 U JP 16872582U JP S6242956 Y2 JPS6242956 Y2 JP S6242956Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- key
- switch
- type tag
- type
- 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
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 8
- 239000003921 oil Substances 0.000 description 65
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000004332 silver Substances 0.000 description 5
- 239000003350 kerosene Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 206010016256 fatigue Diseases 0.000 description 2
- 208000019914 Mental Fatigue Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、複数の室を有するタンクを架装し
て成るタンクローリにおいて、各室の油を荷卸ろ
しする際の混油を防止するようにしたことを特徴
とするタンクローリにおける混油防止装置に関す
るものである。[Detailed description of the invention] [Field of industrial application] This invention is designed to prevent oil from being mixed when unloading oil from each chamber in a tank truck equipped with a tank having multiple chambers. The present invention relates to a device for preventing oil mixture in a tank truck, which is characterized by:
一般にこの種のタンクローリにおいては、例え
ばガソリン、軽油、灯油あるいは重油等の異なる
種類の石油製品等を同時に多量運搬する上で便宜
である。しかし、数室にそれぞれ異種の油を給油
し、油槽所等において各室から荷卸ろしを行なう
ため、その作業が煩雑であり、例えば荷卸ろし時
に希望する油と異なる油を排出したり、２種以上
の油を排出するなどの誤操作を生じる原因となつ
ている。
In general, this type of tank truck is convenient for simultaneously transporting large quantities of different types of petroleum products, such as gasoline, light oil, kerosene, or heavy oil. However, since different types of oil are supplied to several compartments and the cargo is unloaded from each compartment at an oil depot, the work is complicated. This can lead to erroneous operations such as discharging two or more types of oil.
上記のような誤動作は特に石油等の危険物を扱
う場合には許されるものでなく、そのため従来で
は各作業員は慎重に確認・点検した後、各作業に
取り掛なければならず、作業上の神経的疲労が多
くなり、また、作業の遅延化をきたす原因となつ
ていた。
Malfunctions such as those described above cannot be tolerated, especially when handling hazardous materials such as oil, and for this reason, in the past, each worker had to carefully check and inspect before starting each task, resulting in work-related problems. This resulted in increased nervous fatigue and delays in work.
この考案は、上記事情に鑑みなされたもので、
複数の室を有し、複数の油種を積載するタンクを
架装して成るタンクローリにおいて、前記各室に
配備される底弁の開閉部を電磁弁で形成し、各室
ごとにこの電磁弁のソレノイドと操作用スイツチ
と油種札挿入スイツチ部とで直列に電気回路を形
成し、各室ごとのこの回路を並列に配置した回路
群に対し、キースイツチを更に直列に配置して電
気回路網を形成し、前記油種札挿入スイツチ部
は、それぞれこのスイツチ部に選択的に挿入され
る積み込み油種指定のための油種札の導通部にて
選択的に短絡する前記油種の数に応じた切換接点
を有し、かつ、前記キースイツチは、これらキー
スイツチのいずれか１つのみに挿入される荷卸油
種指定のためのキーによつて開閉可能に形成さ
れ、このキーによる短絡、前記油種札挿入スイツ
チ部に挿入される油種札の導通部による短絡及び
前記操作スイツチの短絡の三条件の成立により、
１種又は同種の油のみを荷降ろし可能としたタン
クローリにおける混油防止装置を提案し、これに
よつて、荷卸ろし時における混油を皆無とするこ
とを可能にし、しかも、作業員の精神的疲労を緩
和するとともに、作業能率の向上を図るようにし
たものである。
This idea was made in view of the above circumstances,
In a tank truck equipped with a tank having a plurality of chambers and carrying a plurality of oil types, the opening/closing part of the bottom valve provided in each chamber is formed by a solenoid valve, and the solenoid valve is installed in each chamber. An electrical circuit is formed in series with the solenoid, the operating switch, and the oil type tag insertion switch section, and the key switch is further arranged in series to form an electrical circuit network in which the circuits for each room are arranged in parallel. and the oil type tag insertion switch portion is configured to correspond to the number of oil types that are selectively short-circuited at the conductive portion of the oil type tag for specifying the loading oil type that is selectively inserted into the switch portion. The key switch is configured to be openable and closable by a key inserted into only one of the key switches for specifying the type of oil to be unloaded. Due to the establishment of three conditions: a short circuit due to the conductive part of the oil type tag inserted into the type tag insertion switch part and a short circuit of the operation switch,
We have proposed an oil mixture prevention device for tank trucks that can unload only one type of oil or the same type of oil.This makes it possible to completely eliminate oil mixtures during unloading, and also improves the mental health of workers. This system is designed to alleviate worker fatigue and improve work efficiency.
以下にこの考案の実施例を図面に基づいて説明
する。
Examples of this invention will be described below based on the drawings.
第１図はこの考案の混油防止装置を有するタン
クローリの側面図で、図中、１はシヤシ２上に架
装されたタンクであつて、仕切り板３，３……に
よつて４つの室４ａ〜４ｄに区画されており、各
室４ａ〜４ｄにはそれぞれ後述する底弁５が配備
されている。そして、各底弁５は、第２図に示す
ように、電磁弁６ａ〜６ｄを介してエアータンク
７と接続するエアーシリンダ８ａ〜８ｄによつて
それぞれ開閉しうるようになつている。この場
合、各底弁５の電磁弁６ａ〜６ｄのソレノイド６
a′〜６d′と、操作用スイツチ９ａ〜９ｄと、後述
する油種札１７を選択的に挿入する油種札挿入ス
イツチ部１０とで直列に電気回路を形成し、各室
ごとのこの回路を並列に配置した回路群に対しキ
ースイツチ１１ａ〜１１ｄを更に直列に配置して
電気回路網１２ａ〜１２ｄが形成され、これら各
電気回路網１２ａ〜１２ｄは共通するメーンスイ
ツチ１３及び電源１４に接続されている。なお、
１５は前記エアータンク７とエアーシリンダ８ａ
〜８ｄとを接続するエアーパイプ１６の途中に配
設される三方コツクであつて、前記電源１４に接
続する操作用電磁弁１５′によつて開閉動作しう
るようになつている。 Fig. 1 is a side view of a tank lorry equipped with the oil mixture prevention device of this invention. The chambers 4a to 4d are divided into chambers 4a to 4d, and each chamber 4a to 4d is provided with a bottom valve 5, which will be described later. As shown in FIG. 2, each bottom valve 5 can be opened and closed by air cylinders 8a to 8d connected to the air tank 7 via electromagnetic valves 6a to 6d. In this case, the solenoids 6 of the solenoid valves 6a to 6d of each bottom valve 5
a' to 6d', operating switches 9a to 9d, and an oil type tag insertion switch section 10 for selectively inserting an oil type tag 17, which will be described later, form an electric circuit in series, and this circuit for each chamber is Electrical circuit networks 12a to 12d are formed by further arranging key switches 11a to 11d in series to a circuit group in which the key switches 11a to 11d are arranged in parallel, and each of these electric circuit networks 12a to 12d is connected to a common main switch 13 and a power source 14. ing. In addition,
15 is the air tank 7 and air cylinder 8a.
It is a three-way valve disposed in the middle of the air pipe 16 connecting the air pipes 1 to 8d, and can be opened and closed by an operating solenoid valve 15' connected to the power source 14.
前記油種札挿入スイツチ部１０は、第３図ａな
いしｃに示すように、積み込み油種指定のための
油種札１７を挿入する挿入口１８を有する室１９
の対峙する面に１枚の接点板２０と４個の接点片
２１ａ〜２１ｄとを間隔をおいて対峙して成り、
このスイツチ部１０の室１９内に挿入される油種
札１７の一部に設けられた導通部１７ａが前記接
点板２０と接点片２１ａ〜２１ｄのいずれかとを
短絡するようになつている。 The oil type tag insertion switch section 10 includes a chamber 19 having an insertion opening 18 into which an oil type tag 17 for specifying the type of oil to be loaded is inserted, as shown in FIGS. 3a to 3c.
It consists of one contact plate 20 and four contact pieces 21a to 21d facing each other at intervals,
A conductive portion 17a provided in a part of the oil type tag 17 inserted into the chamber 19 of the switch portion 10 short-circuits the contact plate 20 and any one of the contact pieces 21a to 21d.
なお、前記油種札１７は、第４図ａ又はｂに示
すように、絶縁性部材で形成された札本体１７ｂ
の一部に導通部１７ａを設け（第５図参照）、こ
の導通部１７ａを油種別に異なる位置に形成した
構造とし、かつ、その表面には油種別の色別け部
１７ｃを施して成り、また辺部の一部には前記油
種札挿入スイツチ部１０の室１９に設けた凸部２
２と合致しうる凹部１７ｄが形成され、これら凹
凸部１７ｄ，２２により油種札１７が裏反しに挿
入されるのを防止しうるようになつている。 The oil type tag 17 has a tag body 17b made of an insulating material, as shown in FIG. 4a or b.
A conductive portion 17a is provided in a part of the oil type (see Fig. 5), and the conductive portion 17a is formed at different positions depending on the type of oil, and the surface thereof is provided with color-coded portions 17c according to the type of oil, Further, a convex portion 2 provided in the chamber 19 of the oil type tag insertion switch portion 10 is provided in a part of the side portion.
A recessed portion 17d that can match the oil type tag 17 is formed, and these uneven portions 17d and 22 can prevent the oil type tag 17 from being inserted upside down.
また、前記キースイツチ１１ａ〜１１ｄは、第
６図ａ及びｂに示すように、油種別に互いに係合
する接点部を有する錠前２３ａ〜２３ｄと後述す
る荷卸油種指定のためのキー２４ａ〜２４ｄとで
構成され、かつ、錠前２３ａ〜２３ｄのキー挿入
孔側に配備された操作板２４に設けられた窓部２
５の裏面すなわち錠前側にスライド板２６を摺動
溝２７に沿つて摺動可能に形成し、この際、スラ
イド板２６には前記錠前２３ａ〜２３ｄのキー挿
入孔２３a′〜２３d′のいずれか１つと合致しうる
切欠き窓２８が穿設されており、つまみ２９をも
つて摺動され、同時には１つのキー２４ａ〜２４
ｄしか錠前２３ａ〜２３ｄと係合できないように
なつている。なおこの場合、操作板２４の各キー
スイツチ１１ａ〜１１ｄの付近に各キースイツチ
１１ａ〜１１ｄと共に電気回路網１２ａ〜１２ｄ
を形成する操作用スイツチ９ａ〜９ｄが装備され
ている。また、前記キー２４ａ〜２４ｄは、第７
図に示すような給油所等に備付けのキーボツクス
３０に設けた所定のキー収納部３０ａ〜３０ｄに
配備され、同時に２箇以上のキー２４ａ〜２４ｄ
が取り外されないように確認できるようになつて
いる。 The key switches 11a to 11d also include locks 23a to 23d having contact portions that engage with each other depending on the type of oil, and keys 24a to 24d for specifying the type of unloading oil, which will be described later, as shown in FIGS. 6a and 6b. A window 2 provided on an operation panel 24 arranged on the key insertion hole side of the locks 23a to 23d.
A slide plate 26 is formed on the back surface of 5, that is, on the lock side, so as to be slidable along a sliding groove 27. At this time, the slide plate 26 has one of the key insertion holes 23a' to 23d' of the locks 23a to 23d. A cutout window 28 is drilled that can match one of the keys 24a to 24, and can be slid with a knob 29 to simultaneously open one key 24a to 24.
Only the locks 23a to 23d can be engaged with the locks 23a to 23d. In this case, electric circuit networks 12a to 12d are installed near each of the key switches 11a to 11d on the operation panel 24 together with each of the key switches 11a to 11d.
It is equipped with operation switches 9a to 9d that form the following. Further, the keys 24a to 24d are the seventh
As shown in the figure, two or more keys 24a to 24d are installed in predetermined key storage parts 30a to 30d provided in a key box 30 provided at a gas station, etc.
It is designed so that it can be checked to ensure that it is not removed.
なお、前記電磁弁６ａ〜６ｄは、第８図ａ及び
ｂに示すように、エアータンク用ポート３１、エ
アーシリンダ用ポート３２及び大気用ポート３３
を有する電磁弁本体３４と、この電磁弁本体３４
内にスプリング３５の付勢力をもつて配備され、
かつ、前記エアーシリンダ用ポート３２をエアー
タンク用ポート３１又は大気用ポート３３に連通
するスプール３６と、このスプール３６を切換動
作するソレノイド６a′〜６d′とで構成されてお
り、前記開閉電気回路１２ａ〜１２ｄの短絡によ
り、ソレノイド６a′〜６d′が励磁し、第８図ｂに
示すように、エアータンク用ポート３１とエアー
シリンダ用ポート３２とが連通して、エアーシリ
ンダ８ａ〜８ｄを操作し、底弁５を開放するよう
になつている。 The solenoid valves 6a to 6d have an air tank port 31, an air cylinder port 32, and an atmosphere port 33, as shown in FIGS. 8a and 8b.
a solenoid valve body 34 having a
It is provided with a biasing force of a spring 35 inside,
It also includes a spool 36 that communicates the air cylinder port 32 with the air tank port 31 or the atmosphere port 33, and solenoids 6a' to 6d' that switch this spool 36, and the opening/closing electric circuit. Due to the short circuit of 12a to 12d, the solenoids 6a' to 6d' are energized, and as shown in FIG. 8b, the air tank port 31 and the air cylinder port 32 communicate with each other to operate the air cylinders 8a to 8d. Then, the bottom valve 5 is opened.
上記のように構成されるこの考案の混油防止装
置において、例えば１番目の室４ａにシルバー２
Kl、２番及び３番目の室４ｂ及び４ｃに灯油を３
Klずつ、そして４番目の室４ｄに軽油４Klを積み
込む場合には、積込み時にシルバーの油種札１７
を１枚、灯油の油種札１７を２枚及び軽油の油種
札１７を１枚受け取つて、油種ごとに決定された
所定の室４ａ〜４ｄの油種札挿入スイツチ部１０
に各油種札１７を挿入し、それに従つて油を積み
込み、積み込みが終つたら底弁５等の緩みなどを
点検し、異常がない場合には目的の給油所へ向か
う。そして、給油所において、まず、メーンスイ
ツチ１３をONにすると、第９図に示すように、
三方コツク１５の操作用電磁弁１５′が励磁して
三方コツク１５が連通位置に切換わる。次に、給
油所に備え付けられたキーボツクス３０から所定
のキー例えばシルバー用キー２４ａを取り外し
て、そのキー２４ａをシルバーが収容された室４
ａの開閉電気回路１２ａ中のキースイツチ１１ａ
の錠前２３ａに差し込み、キースイツチ１１ａを
ONにする。なおこの場合、あらかじめキースイ
ツチ１１ａ〜１１ｄにおけるスライド板２６の切
欠き窓２８をつまみ２９をもつて錠前２３ａと合
致させておく。そして、前記キー２４ａによるキ
ースイツチ１１ａの短絡と共に操作用スイツチ９
ａをONにする（第１０図参照）。この状態におい
て、１番目の室の底弁５が開放され、シルバーの
荷卸ろしが行える。この荷降ろしが終つたら、室
内の残油の有無を確認し、底弁、吐出口コツク等
を閉鎖して、前述と逆に操作用スイツチ９ａ及び
キースイツチ１１ａをOFFにし、キー２４ａを
キーボツクス３０の収納部３０ａ内に納める。そ
して、次の別の油を荷卸ろしする場合には荷卸ろ
しすべき油種のキー２４ａ〜２４ｄを取り出して
前述と同様の手順で行なう。かようにして荷卸ろ
し作業が全て終つたならば、メーンスイツチ１３
をOFFにする。なお、２番及び３番目の室４
ｂ，４ｃ内の灯油を荷卸ろしする場合には第１１
図に示すように、キースイツチ１１ｃをONにす
るとともに、操作用スイツチ９ｂ，９ｃをONに
することにより、電気回路網１２ｂ及び１２ｃが
短絡されて、荷卸ろし可能となる。この場合、操
作用スイツチ９ｂ，９ｃをONにするところを誤
つて９ｃと９ｄをONにしたとしても、第１２図
に示すように４番目の室４ｄの電気回路網１２ｄ
は短絡せず、室４ｄ内の軽油は荷卸ろしされるこ
とはない。したがつて、誤操作したとしても異種
の油が混油する危検性はない。 In the oil mixture prevention device of this invention configured as described above, for example, silver 2 is placed in the first chamber 4a.
Kl, 3 kerosene in the 2nd and 3rd rooms 4b and 4c
If loading 4Kl of diesel oil into the fourth compartment 4d, please check the silver oil type tag 17 when loading.
, two oil type tags 17 for kerosene, and one oil type tag 17 for diesel oil, and insert the oil type tag insertion switch section 10 into a predetermined chamber 4a to 4d determined for each oil type.
Insert each oil type tag 17 into the tank, load oil according to the instructions, and after loading, check for looseness of the bottom valve 5, etc., and if there is no abnormality, head to the target filling station. At the gas station, when the main switch 13 is first turned on, as shown in Fig. 9,
The operating solenoid valve 15' of the three-way socket 15 is energized, and the three-way socket 15 is switched to the communication position. Next, a predetermined key, for example, the silver key 24a, is removed from the key box 30 installed at the gas station, and the key 24a is placed in the chamber where the silver is stored.
key switch 11a in the switching electric circuit 12a of a
into the lock 23a and turn the key switch 11a.
Turn it on. In this case, the notch window 28 of the slide plate 26 of the key switches 11a to 11d is aligned with the lock 23a using the knob 29 in advance. Then, the key switch 11a is short-circuited by the key 24a, and the operation switch 9 is short-circuited.
Turn on a (see Figure 10). In this state, the bottom valve 5 of the first chamber is opened and silver can be unloaded. After unloading, check whether there is any residual oil in the room, close the bottom valve, outlet port, etc., turn off the operating switch 9a and key switch 11a in the opposite manner to the above, and turn the key 24a into the key box 30. It is stored in the storage section 30a of. Then, when another oil is to be unloaded, the keys 24a to 24d of the type of oil to be unloaded are taken out and the same procedure as described above is carried out. When all the unloading work is completed in this way, turn on the main switch 13.
Turn off. In addition, the second and third rooms 4
When unloading kerosene in b and 4c, the 11th
As shown in the figure, by turning on the key switch 11c and turning on the operation switches 9b and 9c, the electric circuit networks 12b and 12c are short-circuited, and unloading becomes possible. In this case, even if the operating switches 9b and 9c are turned on by mistake and switches 9c and 9d are turned on, the electrical circuit 12d of the fourth chamber 4d will be turned on as shown in FIG.
is not short-circuited, and the light oil in the chamber 4d is not unloaded. Therefore, even if there is an erroneous operation, there is no risk of mixing different types of oil.
以上に説明したように、この考案の混油防止装
置によれば、油種別に互いに合致するキーと錠前
とから成るキースイツチと、油種別に短絡接点が
異なる油種札を有する油種札挿入スイツチ部とを
組み合わせて各室の底弁の電気回路網を形成し、
しかも、キースイツチの操作は同時に２以上行え
ない構造となつているので、万一誤つて異種の油
のスイツチ部をONにしたとしても回路は構成さ
れず、希望する油以外の荷卸ろしは行われず、ま
た、異種の油が混油されることもない。したがつ
て、作業員は精神的疲労から解放され、また、従
来のこの種作業に比して能率的にかつ迅速に荷卸
ろし作業を行なうことができるなどの優れた効果
が得られ、その利用価値は顕著である。
As explained above, according to the oil mixture prevention device of this invention, there is a key switch consisting of a key and a lock that match each other depending on the oil type, and an oil type tag insertion switch that has an oil type tag with a different short-circuit contact depending on the oil type. form the electric circuit network of the bottom valve of each chamber,
Moreover, the structure is such that the key switch cannot be operated more than once at the same time, so even if you accidentally turn on the switch for a different type of oil, the circuit will not be configured and you will not be able to unload oil other than the desired one. Also, different types of oils are not mixed. Therefore, workers are freed from mental fatigue, and compared to conventional work of this type, they can unload and unload more efficiently and quickly. The utility value is remarkable.
第１図はこの考案の混油防止装置を装備するタ
ンクローリの側面図、第２図はこの考案案の混油
防止装置の電気回路図、第３図ａないしｃはそれ
ぞれこの考案における油種札挿入スイツチ部の正
面断面図、平面断面図及び側面断面図、第４図ａ
及びｂはこの考案における油種札の別の態様を示
す正面図、第５図は油種札の縦断面図、第６図ａ
及びｂはこの考案におけるキースイツチの要部を
示す正面図及びそのＡ−Ａ断面図、第７図はキー
ボツクスを示す正面図、第８図ａ及びｂはこの考
案における底弁の電磁弁の作動態様を示す断面
図、第９図ないし第１２図はそれぞれこの考案の
混油防止装置の別の作動態様を示す電気回路図で
ある。
図において、１……タンク、４ａ〜４ｄ……
室、５……底弁、６ａ〜６ｄ……電磁弁、６a′〜
６d′……ソレノイド、７……エアータンク、８ａ
〜８ｄ……エアーシリンダ、９ａ〜９ｄ……操作
用スイツチ、１０……油種札挿入スイツチ部、１
１ａ〜１１ｄ……キースイツチ、１２ａ〜１２ｄ
……電気回路網、１３……メーンスイツチ、１４
……電源、１５……三方コツク、１５′……操作
用電磁弁、１７……油種札、１７ａ……導通部、
２０……接点板、２１ａ〜２１ｄ……接点片、２
４……操作板、２５……窓部、２６……スライド
板、２７……溝、２８………切欠き窓、２９……
つまみ、３０……キーボツクス、である。
Figure 1 is a side view of a tank truck equipped with the oil mixture prevention device of this invention, Figure 2 is an electric circuit diagram of the oil mixture prevention device of this invention, and Figures 3 a to c are the oil type tags of this invention. Front sectional view, plan sectional view and side sectional view of the insertion switch part, Figure 4a
and b is a front view showing another aspect of the oil type tag in this invention, FIG. 5 is a longitudinal sectional view of the oil type tag, and FIG. 6 a
7 is a front view showing the key box, and FIGS. 8a and 8b are operating modes of the solenoid valve of the bottom valve in this invention. 9 to 12 are electrical circuit diagrams showing other operating modes of the oil mixture prevention device of this invention. In the figure, 1...tank, 4a to 4d...
Chamber, 5...Bottom valve, 6a-6d...Solenoid valve, 6a'-
6d'...Solenoid, 7...Air tank, 8a
~8d...Air cylinder, 9a~9d...Operation switch, 10...Oil type tag insertion switch part, 1
1a-11d...Key switch, 12a-12d
...Electric circuit network, 13...Main switch, 14
... Power supply, 15 ... Three-way power supply, 15' ... Solenoid valve for operation, 17 ... Oil type tag, 17a ... Continuity part,
20...Contact plate, 21a-21d...Contact piece, 2
4...Operation board, 25...Window section, 26...Slide plate, 27...Groove, 28...Notch window, 29...
Knob, 30...key box.
Claims (1)
クを架装して成るタンクローリにおいて、前記
各室に配備される底弁の開閉部を電磁弁で形成
し、各室ごとにこの電磁弁のソレノイドと操作
用スイツチと油種札挿入スイツチ部とで直列に
電気回路を形成し、各室ごとのこの回路を並列
に配置した回路群に対し、キースイツチを更に
直列に配置して電気回路網を形成し、前記油種
札挿入スイツチ部は、それぞれこのスイツチ部
に選択的に挿入される積み込み油種指定のため
の油種札の導通部にて選択的に短絡する前記油
種の数に応じた切換接点を有し、かつ、前記キ
ースイツチは、これらキースイツチのいずれか
１つのみに挿入される荷卸油種指定のためのキ
ーによつて開閉可能に形成され、このキーによ
る短絡、前記油種札挿入スイツチ部に挿入され
る油種札の導通部による短絡及び前記操作スイ
ツチの短絡の三条件の成立により、１種又は同
種の油のみを荷降ろし可能としたタンクローリ
における混油防止装置。 ２ 前記キースイツチは、油種別に互いに係合す
る接点部を有する錠前とキーとで構成され、前
記錠前のキー挿入孔側にはいずれか１つの錠前
のキー挿入孔に合致しうる切欠き窓を有するス
ライド板を摺動可能に配備して成る実用新案登
録請求の範囲第１項記載のタンクローリにおけ
る混油防止装置。[Claims for Utility Model Registration] 1. In a tank truck equipped with a tank having a plurality of chambers and carrying a plurality of oil types, the opening/closing part of the bottom valve provided in each of the chambers is formed by a solenoid valve. Then, for each room, an electric circuit is formed in series with the solenoid of this solenoid valve, the operation switch, and the oil type tag insertion switch part, and the key switch is connected to the circuit group in which this circuit for each room is arranged in parallel. Further, they are arranged in series to form an electric circuit network, and the oil type tag insertion switch portion selectively inserts the oil type tag into the switch portion to selectively insert the oil type tag for specifying the type of oil to be loaded. and the key switch is configured to be opened and closed by a key inserted into only one of the key switches for specifying the type of unloading oil. When three conditions are met: a short circuit caused by this key, a short circuit caused by the conducting part of the oil type tag inserted into the oil type tag insertion switch section, and a short circuit of the operation switch, only one or the same type of oil can be unloaded. A device to prevent oil from being mixed in tank trucks. 2. The key switch is composed of a lock and a key that have contact parts that engage with each other depending on the type of oil, and has a cutout window on the key insertion hole side of the lock that can match the key insertion hole of any one of the locks. 1. An oil mixture prevention device for a tank lorry as claimed in claim 1, which comprises a sliding plate having a slide plate arranged in a slidable manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16872582U JPS5972299U (en) | 1982-11-09 | 1982-11-09 | Oil mixture prevention device in tank truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16872582U JPS5972299U (en) | 1982-11-09 | 1982-11-09 | Oil mixture prevention device in tank truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5972299U JPS5972299U (en) | 1984-05-16 |
| JPS6242956Y2 true JPS6242956Y2 (en) | 1987-11-05 |
Family
ID=30368792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16872582U Granted JPS5972299U (en) | 1982-11-09 | 1982-11-09 | Oil mixture prevention device in tank truck |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5972299U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59187594A (en) * | 1983-04-07 | 1984-10-24 | 昭和飛行機工業株式会社 | Preventive device for oil mixing in tank lorry |
| JPS62193998A (en) * | 1986-02-20 | 1987-08-26 | 東急車輌製造株式会社 | Oil-mixing preventive device |
-
1982
- 1982-11-09 JP JP16872582U patent/JPS5972299U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5972299U (en) | 1984-05-16 |
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