JPS639028Y2 - - Google Patents
Info
- Publication number
- JPS639028Y2 JPS639028Y2 JP1979096254U JP9625479U JPS639028Y2 JP S639028 Y2 JPS639028 Y2 JP S639028Y2 JP 1979096254 U JP1979096254 U JP 1979096254U JP 9625479 U JP9625479 U JP 9625479U JP S639028 Y2 JPS639028 Y2 JP S639028Y2
- Authority
- JP
- Japan
- Prior art keywords
- relay
- selection
- switch
- energized
- delivery
- 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
- 239000003990 capacitor Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 description 3
- 230000005281 excited state Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Vending Machines For Individual Products (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Description
【考案の詳細な説明】
本考案は商品選動作に起因してコンデンサ遅延
回路が動作しリレーがOFFデイレイを生じるこ
とによつてOFFデイレイ時間を利用し商品送出
装置を作動せしめる自動販売機に関する。更に詳
述すれば選択スイツチにて選択リレーを励磁しそ
れによつて商品販売用の電動装置を作動する場合
には、選択スイツチの不完全なタツチに基づいて
選択リレーに接点アークが生じ、そのアークによ
つて商品販売装置の回路が形成されて作動し商品
の誤販売が行われるが、前記選択リレーの接点は
販売待期状態を解除しているために続いて正確な
タツチによつて選択スイツチを作動させると更に
商品を販売するに至ることがあり、本考案はこの
ような商品の二重販売を防止する回路構成にする
ために選択スイツチの正確なタツチによつて選択
リレーが励磁しその結果をもつてコンデンサ遅延
回路の作用を受ける特定リレーを励磁してこの遅
延回路による遅延時間内で商品販売装置を作動せ
しめるものの改良に関する。[Detailed Description of the Invention] The present invention relates to a vending machine in which a capacitor delay circuit operates due to a product selection operation and a relay generates an OFF delay, thereby utilizing the OFF delay time to operate a product delivery device. More specifically, when a selection switch is used to energize a selection relay and thereby operate an electric device for selling products, a contact arc is generated in the selection relay based on an incomplete touch of the selection switch, and the arc , the circuit of the product vending device is formed and activated, and the product is sold incorrectly. However, since the contact point of the selection relay has released the sales waiting state, the selection switch is activated by a precise touch. In order to prevent such double sales of products, the present invention has a circuit configuration in which the selection relay is energized by the precise touch of the selection switch. The present invention relates to an improvement in a system for energizing a specific relay that is affected by a capacitor delay circuit and operating a product vending device within the delay time caused by the delay circuit.
本考案が対象とする技術の一つとして特公昭50
−12630号公報のものがある。これによるとコン
デンサ遅延回路の遅延時間の存在によつて前記二
重販売が防止されている。 As one of the technologies targeted by this invention,
-There is one published in No. 12630. According to this, the double sale is prevented by the presence of the delay time of the capacitor delay circuit.
上記のようにコンデンサ遅延回路の遅延時間の
有効利用によつて商品の二重販売を防止した場
合、コンデンサの容量やリレーの復帰電圧のバラ
ツキによつて商品送出装置の動作時間が一定せ
ず、重量商品を縦積みして収納している場合に商
品送出装置の電磁ソレノイドが短時間通電された
ときに商品１個を送出する構成では通電時間が長
いと残つた商品荷重を支える機構に大きい荷重が
かかつて余分の商品が出るおそれがありこの支え
機構の構造を極めて強固にする必要が生じて商品
送出装置の大型化を生じたり、或いはまた電磁ソ
レノイド構成の商品送出装置では通電時間が長び
くことによつて異常温度上昇を生じ危険になるお
それがあるために、本考案はそれを防止する装置
を提供するものである。 When double selling of products is prevented by effectively utilizing the delay time of the capacitor delay circuit as described above, the operating time of the product delivery device will not be constant due to variations in capacitor capacity and relay return voltage. When heavy products are stored vertically and the electromagnetic solenoid of the product delivery device is energized for a short time, it sends out one product. If the energization time is long, a large load will be placed on the mechanism that supports the remaining product load. However, there is a risk that excess products may come out, and the structure of this support mechanism must be made extremely strong, resulting in an increase in the size of the product delivery device.Also, if the product delivery device is configured with an electromagnetic solenoid, the energization time may be prolonged. The present invention provides a device to prevent this from occurring, which may cause an abnormal temperature rise and become dangerous.
以下図面に基づき実施例を説明する。 Examples will be described below based on the drawings.
１，２は交流電源ラインで、３は投入された硬
貨を選別すると共に計数する貨幣選別計数装置
で、所定金額に達すると販売可信号を出力し、販
売開始信号が入力されると前記販売可信号出力を
停止するよう成されている。４は前記計数装置３
が販売可信号を出力したときに付勢されるベンド
リレーで、スイツチ４ａ，４ｂを制御すると共に
該ベンドリレー４には並列にコンデンサ５の遅延
回路が接続される。６，７，８は商品を収納する
商品収納コラム内の商品の有無に応答して開閉す
る売切スイツチで、商品を有している場合はａ接
点に閉成し、商品の無の場合にはｂ接点に閉成す
る構成である。９，１０及び１１は商品収納コラ
ムに夫々対応して成る商品選択スイツチ、１２，
１３及び１４は前記選択スイツチ９，１０，１１
で制御される選択リレーで夫々スイツチ１２ａ，
１２ｂと１２ｃ，１３ａ，１３ｂ，１３ｃ及び１
４ａ，１４ｂ，１４ｃを制御する。１５は前記選
択リレー１２，１３，１４の何れかが付勢された
ときに付勢される第１のデリバリリレーで、スイ
ツチ１５ａ，１５ｂを制御すると共にコンデンサ
１６を並列に接続して遅延回路が構成されてい
る。１７は前記デリバリリレー１５のスイツチ１
５ｂがａ接点に閉成すると付勢される第２のデリ
バリリレーで、スイツチ１７ａ，１７ｂを制御す
ると共に並列にコンデンサ１８の遅延回路が接続
される。この第２デリバリリレー１７が付勢され
スイツチ１７ｂがａ接点に閉成することによつて
販売開始信号が前記計数装置３に送達される。１
９，２０，２１は夫々の商品収納コラムに設けた
商品送出装置を構成する電磁ソレノイドである。
２２は前記コンデンサ１６と並列に接続せしめた
タイマスイツチ２３を有するタイマ装置で、前記
ソレノイド１９，２０，２１の何れかの通電回路
２４が閉路されたときの閉路信号を入力せしめて
作動し、所定時間経過すると前記タイマスイツチ
２３が閉成すると共に、前記通電回路２４が開路
されて閉路信号入力が停止されると復帰し、前記
タイマスイツチ２３が開成するよう構成してい
る。即ちタイマ装置２２は前記ソレノイド１９，
２０，２１の何れかへの通電回路２４が閉路され
ると同時にその閉路信号を入力せしめ、前記ソレ
ノイドから成る商品送出装置が所定の商品送出を
行なうのに最適な時間後、即ち所定時間経過後タ
イマスイツチ２３を閉成しコンデンサ１６を強性
的に放電せしめてデリバリリレー１５の遅延励磁
時間を規制するよう構成している。 Reference numerals 1 and 2 are AC power lines, and 3 is a coin sorting and counting device that sorts and counts the inserted coins.When a predetermined amount of coins is reached, it outputs a sellable signal, and when a sales start signal is input, it outputs a sellable signal. It is configured to stop signal output. 4 is the counting device 3
A bend relay is energized when outputs a sellable signal, and controls switches 4a and 4b, and a delay circuit of a capacitor 5 is connected in parallel to the bend relay 4. 6, 7, and 8 are sell-out switches that open and close in response to the presence or absence of products in the product storage column that stores products. is a configuration in which the contact is closed to the b contact. 9, 10 and 11 are product selection switches corresponding to the product storage columns, 12,
13 and 14 are the selection switches 9, 10, 11
The selection relays controlled by the switches 12a,
12b and 12c, 13a, 13b, 13c and 1
4a, 14b, and 14c. A first delivery relay 15 is energized when any one of the selection relays 12, 13, and 14 is energized, and it controls the switches 15a and 15b, and connects a capacitor 16 in parallel to form a delay circuit. It is configured. 17 is switch 1 of the delivery relay 15
The second delivery relay is energized when 5b is closed to the a contact, and controls switches 17a and 17b, and is connected in parallel with a delay circuit of capacitor 18. When the second delivery relay 17 is energized and the switch 17b is closed to the a contact point, a sales start signal is delivered to the counting device 3. 1
Reference numerals 9, 20, and 21 are electromagnetic solenoids constituting a product delivery device provided in each product storage column.
22 is a timer device having a timer switch 23 connected in parallel with the capacitor 16, which is activated by inputting a closing signal when the energizing circuit 24 of any one of the solenoids 19, 20, 21 is closed; When the time elapses, the timer switch 23 closes, and when the energizing circuit 24 is opened and the input of the closing signal is stopped, the timer switch 23 is opened. That is, the timer device 22 is connected to the solenoid 19,
At the same time as the energizing circuit 24 to either of 20 and 21 is closed, the closing signal is inputted, and after an optimal time for the product delivery device consisting of the solenoid to deliver a predetermined product, that is, after a predetermined time has elapsed. The timer switch 23 is closed to forcefully discharge the capacitor 16, thereby regulating the delayed excitation time of the delivery relay 15.
次に上記構成による動作を説明する。所定額の
硬貨が投入口から投入されると、貨幣選別計数装
置３の出力端子ａから販売可信号が出力される。
このため出力端子ａ、ダイオードD1、ベンドリ
レー４、スイツチ１４ａ、スイツチ１３ａ、スイ
ツチ１２ａ、電源ライン２の閉回路によりベンド
リレー４が励磁され、そのスイツチ４ａ，４ｂは
夫々ａ接点に切換わると共にコンデンサ５は充電
される。ここで顧客が選択スイツチ９を作動させ
ｂ接点に閉成すると、出力端子ａ、売切スイツチ
６、選択リレー１２、選択スイツチ９、選択スイ
ツチ１０、選択スイツチ１１、スイツチ４ｂ、ス
イツチ１５ｂ、電源ライン２の閉回路により選択
リレー１２が励磁され、そのスイツチ１２ａ，１
２ｂ，１２ｃをａ接点へ切換え、スイツチ１２ａ
を通して選択リレー１２は自己保持される。これ
と同時にスイツチ１２ａの切換わりによつてベン
ドリレー４の通電回路が遮断されるがコンデンサ
５による遅延回路によりベンドリレー４は引続き
励磁状態を維持する。また前記選択リレー１２の
励磁により出力端子ａ、売切スイツチ６、スイツ
チ１２ｂ、デリバリリレー１５、ダイオードD2、
スイツチ４ａ、電源ライン２の閉回路が形成され
てデリバリリレー１５は励磁され、そのスイツチ
１５ａ，１５ｂは夫々ａ接点に切換わると共にコ
ンデンサ１６が充電される。そしてこのデリバリ
リレー１５のスイツチ１５ｂのａ接点への閉成に
よつて電源ライン１からデリバリリレー１７、ダ
イオードD3、スイツチ１５ｂ、電源ライン２へ
の通電回路が閉路される。従つてデリバリリレー
１７は励磁され、そのスイツチ１７ａ，１７ｂは
夫々ａ接点に切換わり同時にコンデンサ１８は充
電される。そしてこのスイツチ１７ｂのａ接点へ
の閉成により販売開始信号が計数装置３の入力端
子ｂに入力される。従つて計数装置３はリセツト
され出力端子ａからの販売可信号出力は停止され
る。しかし電源ライン１、スイツチ１７ａ、スイ
ツチ１２ｂ、選択リレー１２、スイツチ１２ａ、
電源ライン２の閉回路により選択リレー１２は自
己保持状態を維持すると共に第１のデリバリリレ
ー１５も電源ライン１、スイツチ１７ａ、デリバ
リリレー１５、ダイオードD2、スイツチ４ａ、
電源ライン２の閉回路によつて励磁状態を維持す
る。そしてベンドリレー４の遅延が解除されてス
イツチ４ａ，４ｂはｂ接点へ復帰する。このスイ
ツチ４ａのｂ接点への切換わりにより第１のデリ
バリリレー１５の通電回路は開路されるが、コン
デンサ１６の遅延回路によつてデリバリリレー１
５は励磁状態を維持する。従つて電源ライン１、
スイツチ１２ｃ、ソレノイド１９、スイツチ１５
ａ、スイツチ４ａ、電源ライン２の通電回路２４
が閉路され、ソレノイド１９が励磁する。また該
通電回路２４の閉路により電源ライン２、スイツ
チ４ａ、スイツチ１５ａ、タイマ装置２２が閉路
されて閉路信号がタイマ装置２２へ入力され作動
を開始する。そして所定時間の経過と共に商品が
送出されるとタイマスイツチ２３が閉成する。従
つてコンデンサ１６が強性的に放電されて第１の
デリバリリレー１５の遅延が解除され、スイツチ
１５ａ，１５ｂはｂ接点へ復帰する。これと同時
にスイツチ１５ａの切換わりによつてソレノイド
１９の通電回路２４が開路されてソレノイド１９
が消磁し、またタイマ装置２２への閉路信号入力
が停止され該タイマ装置２２はリセツトされる。
また更にスイツチ１５ｂの切換わりによつて第２
のデリバリリレー１７の通電回路が遮断される。
従つて第２のデリバリリレー１７はコンデンサ１
８による遅延時間終了後消磁し、スイツチ１７
ａ，１７ｂはｂ接点へ復帰する。同時にこのスイ
ツチ１７ａのｂ接点への切換わりによつて選択リ
レー１２の自己保持は解除され、販売待期状態と
なる。 Next, the operation of the above configuration will be explained. When a predetermined amount of coins is inserted from the input slot, a sellable signal is output from the output terminal a of the coin sorting and counting device 3.
Therefore, the bend relay 4 is energized by the closed circuit of the output terminal a, the diode D 1 , the bend relay 4, the switch 14a, the switch 13a, the switch 12a, and the power line 2, and the switches 4a and 4b are respectively switched to the a contact. Capacitor 5 is charged. Here, when the customer operates the selection switch 9 and closes the B contact, the output terminal a, the sell-out switch 6, the selection relay 12, the selection switch 9, the selection switch 10, the selection switch 11, the switch 4b, the switch 15b, the power line The selection relay 12 is energized by the closed circuit of 2, and the switches 12a, 1
Switch 2b, 12c to a contact, switch 12a
Through this, the selection relay 12 is self-maintained. At the same time, the energizing circuit of the bend relay 4 is cut off by switching the switch 12a, but the bend relay 4 continues to be energized by the delay circuit formed by the capacitor 5. Furthermore, due to the energization of the selection relay 12, the output terminal a, the sell-out switch 6, the switch 12b, the delivery relay 15, the diode D 2 ,
A closed circuit is formed between the switch 4a and the power line 2, and the delivery relay 15 is energized.The switches 15a and 15b are respectively switched to the a contact point, and the capacitor 16 is charged. By closing the a contact of switch 15b of delivery relay 15, the energizing circuit from power line 1 to delivery relay 17, diode D3 , switch 15b, and power line 2 is closed. Therefore, the delivery relay 17 is energized, its switches 17a and 17b are respectively switched to the a contact point, and at the same time, the capacitor 18 is charged. A sales start signal is input to the input terminal b of the counting device 3 by closing the a contact of the switch 17b. Therefore, the counting device 3 is reset and the output of the sellable signal from the output terminal a is stopped. However, the power line 1, switch 17a, switch 12b, selection relay 12, switch 12a,
Due to the closed circuit of the power line 2, the selection relay 12 maintains its self-holding state, and the first delivery relay 15 also connects the power line 1, switch 17a, delivery relay 15, diode D2 , switch 4a,
The excited state is maintained by the closed circuit of the power supply line 2. Then, the delay of the bend relay 4 is canceled and the switches 4a and 4b return to the b contact. By switching the switch 4a to the b contact, the energizing circuit of the first delivery relay 15 is opened, but the delay circuit of the capacitor 16 causes the delivery relay 1
5 maintains the excited state. Therefore, power line 1,
Switch 12c, solenoid 19, switch 15
a, switch 4a, power supply line 2 energizing circuit 24
is closed, and the solenoid 19 is energized. Furthermore, the power supply line 2, switch 4a, switch 15a, and timer device 22 are closed by the closing of the energizing circuit 24, and a closing signal is input to the timer device 22 to start its operation. Then, when the product is sent out after a predetermined time has elapsed, the timer switch 23 is closed. Therefore, the capacitor 16 is strongly discharged, the delay of the first delivery relay 15 is canceled, and the switches 15a and 15b return to the b contact. At the same time, the switch 15a is switched to open the energizing circuit 24 of the solenoid 19.
is demagnetized, the input of the closing signal to the timer device 22 is stopped, and the timer device 22 is reset.
Furthermore, by switching the switch 15b, the second
The energizing circuit of the delivery relay 17 is cut off.
Therefore, the second delivery relay 17
After the delay time set by 8 is over, demagnetization is performed, and switch 17 is turned on.
A and 17b return to the b contact. At the same time, by switching the switch 17a to the b contact, the self-holding of the selection relay 12 is released, and the state is set to a sales waiting state.
本考案は上記の如く、投入された貨幣が所定金
額に達すると販売可信号を出力する貨幣選別計数
装置と、操作されることによつて選択信号を出力
する商品選択スイツチと、該選択信号出力と前記
販売可信号出力との発生によつて付勢される選択
リレーと、該選択リレーの付勢により消勢するベ
ンドリレーと、前記選択リレーの付勢によつて付
勢され且つ前記ベンドリレーの消勢により所定時
間後消勢されると共に該消勢によつて前記選択リ
レーを消勢せしめるコンデンサ遅延回路を有した
デリバリリレーと、該デリバリリレーが付勢され
且つ前記ベンドリレーが消勢された時に通電回路
が閉路されて付勢される電磁ソレノイド式商品送
出装置とを具備した自動販売機において、前記商
品送出装置の通電回路の閉回路による閉路信号を
入力信号として作動し所定時間後閉成するタイマ
スイツチを有したタイマ装置を設け、該タイマ装
置のタイマスイツチを前記デリバリリレーのコン
デンサ遅延回路と並列に接続して該コンデンサを
強制的に放電せしめて成る自動販売機である。 As described above, the present invention includes a currency sorting and counting device that outputs a sellable signal when the amount of coins inserted reaches a predetermined amount, a product selection switch that outputs a selection signal when operated, and an output of the selection signal. and a bend relay that is energized by the generation of the sales enable signal output, a bend relay that is deenergized by the energization of the selection relay, and a bend relay that is energized by the energization of the selection relay and the bend relay. a delivery relay having a capacitor delay circuit which is deenergized after a predetermined period of time due to deenergization of the circuit and deenergizes the selection relay by the deenergization; and the delivery relay is energized and the bend relay is deenergized. In a vending machine equipped with an electromagnetic solenoid type product delivery device whose energizing circuit is closed and energized when the product delivery device is closed, the vending machine operates using a closing signal from the closing circuit of the energization circuit of the product delivery device as an input signal and closes after a predetermined time. The vending machine is provided with a timer device having a timer switch, and the timer switch of the timer device is connected in parallel with the capacitor delay circuit of the delivery relay to forcibly discharge the capacitor.
従来公知の技術として、商品送出装置を販売指
令によつてタイマを作動させて一定時間商品送出
装置を駆動するものがあるが、これは前述のよう
な二重販売を防止した構成ではないので基本的に
本考案と異なることは明確である。 As a conventionally known technique, there is a method in which a timer is activated in response to a sales command to drive the product delivery device for a certain period of time, but this is not a configuration that prevents double sales as described above, so it is basic. It is clear that this method differs from the present invention in terms of its design.
即ち、本考案は選択スイツチの不完全なタツチ
と同時に商品販売装置は動作しない構成を基本と
したものであつて、その特徴を活かしつつ前記コ
ンデンサによる前記デリバリリレーの遅延時間は
前記タイマ装置の動作によつて制限されるので商
品送出装置が不必要に長く通電されることはな
く、商品送出装置が簡単でも商品が余計に販売さ
れ得ることはなく、また異常温度上昇を生じるこ
となども防止できる効果がある。 That is, the present invention is based on a configuration in which the product vending device does not operate at the same time as the selection switch is incompletely touched. Taking advantage of this feature, the delay time of the delivery relay due to the capacitor is determined by the operation of the timer device. Since the product delivery device is limited by effective.
図は本考案の実施例を示す電気回路図である。
１５……デリバリリレー、１６……コンデン
サ、１９，２０，２１……ソレノイド、２２……
タイマ装置、２３……タイマスイツチ、２４……
通電回路。
The figure is an electrical circuit diagram showing an embodiment of the present invention. 15... Delivery relay, 16... Capacitor, 19, 20, 21... Solenoid, 22...
Timer device, 23... Timer switch, 24...
energized circuit.
Claims (1)
号を出力する貨幣選別計数装置と、操作されるこ
とによつて選択信号を出力する商品選択スイツチ
と、該選択信号出力と前記販売可信号出力との発
生によつて付勢される選択リレーと、該選択リレ
ーの付勢により消勢するベンドリレーと、前記選
択リレーの付勢によつて付勢され且つ前記ベンド
リレーの消勢により所定時間後消勢されると共に
該消勢によつて前記選択リレーを消勢せしめるコ
ンデンサ遅延回路を有したデリバリリレーと、該
デリバリリレーが付勢され且つ前記ベンドリレー
が消勢された時に通電回路が閉路されて付勢され
る電磁ソレノイド式商品送出装置とを具備した自
動販売機において、前記商品送出装置の通電回路
の閉回路による閉路信号を入力信号として作動し
所定時間後閉成するタイマスイツチを有したタイ
マ装置を設け、該タイマ装置のタイマスイツチを
前記デリバリリレーのコンデンサ遅延回路と並列
に接続して該コンデンサを強制的に放電せしめて
成る自動販売機。 a vending machine having a coin sorting and counting device which outputs a vend ready signal when the number of coins inserted reaches a predetermined amount; a product selection switch which outputs a selection signal when operated; a selection relay which is energized by the generation of the selection signal output and the vend ready signal output; a bend relay which is deenergized by the energization of the selection relay; a delivery relay which is energized by the energization of the selection relay and is deenergized after a predetermined time by the deenergization of the bend relay and which has a capacitor delay circuit which deenergizes the selection relay by said deenergization; and an electromagnetic solenoid type product delivery device which is energized when the delivery relay is energized and when the bend relay is deenergized, and which is energized when an energization circuit is closed
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979096254U JPS639028Y2 (en) | 1979-07-12 | 1979-07-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979096254U JPS639028Y2 (en) | 1979-07-12 | 1979-07-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5616284U JPS5616284U (en) | 1981-02-12 |
| JPS639028Y2 true JPS639028Y2 (en) | 1988-03-17 |
Family
ID=29329083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979096254U Expired JPS639028Y2 (en) | 1979-07-12 | 1979-07-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS639028Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240199B2 (en) * | 1973-01-02 | 1977-10-11 | ||
| JPS5345673U (en) * | 1976-09-22 | 1978-04-18 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240199U (en) * | 1975-09-13 | 1977-03-22 |
-
1979
- 1979-07-12 JP JP1979096254U patent/JPS639028Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240199B2 (en) * | 1973-01-02 | 1977-10-11 | ||
| JPS5345673U (en) * | 1976-09-22 | 1978-04-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5616284U (en) | 1981-02-12 |
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