JP3579312B2 - Extractor - Google Patents

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Publication number
JP3579312B2
JP3579312B2 JP29200799A JP29200799A JP3579312B2 JP 3579312 B2 JP3579312 B2 JP 3579312B2 JP 29200799 A JP29200799 A JP 29200799A JP 29200799 A JP29200799 A JP 29200799A JP 3579312 B2 JP3579312 B2 JP 3579312B2
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JP
Japan
Prior art keywords
hot water
storage tank
water supply
tank
supply tank
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 - Fee Related
Application number
JP29200799A
Other languages
Japanese (ja)
Other versions
JP2001112633A (en
Inventor
清志 岸本
経正 浅井
則夫 山本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Tottori Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tottori Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tottori Sanyo Electric Co Ltd
Priority to JP29200799A priority Critical patent/JP3579312B2/en
Priority to PCT/JP2000/001716 priority patent/WO2000057761A1/en
Publication of JP2001112633A publication Critical patent/JP2001112633A/en
Application granted granted Critical
Publication of JP3579312B2 publication Critical patent/JP3579312B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明は貯溜タンク内の湯を給湯タンク内に入れ必要時に給湯タンク内の湯を注湯してコーヒー等の抽出を行うようにした抽出器に関する。
【0002】
【従来の技術】
例えばフィルター内に入れたコーヒー粉に注湯して抽出する装置は家庭用から業務用まで多くの種類が商品化されている。
【0003】
家庭用の場合は、連続してコーヒーを抽出する回数が少なく多くの湯を必要としないことから、750〜800ミリリットル程度の貯湯タンクを1つ設けている。
【0004】
業務用の場合は連続してコーヒーを抽出することが多いことから、多量の湯を必要とするため貯湯タンクの内容量を大きくしているが、常に多量の湯をコーヒーを抽出できる程度の高温に保持しているためにヒータの消費電力が大きくなり屋内の定格許容電力に影響を与えたり、電気料金が高くなる欠点がある。
【0005】
この様な理由をもとに特公平4−72532号公報に見られる様に常に注湯可能な温度まで加温、保持する給湯タンクと、このタンクと連通し必要な量の水を前記給湯タンクに給水する貯水タンクとを備えた2タンク方式が採用されている。
【0006】
【発明が解決しようとする課題】
前記貯水タンクから給湯タンク内への給水は、一般的に給湯タンク内の湯が所定水位以下となった時にポンプ等により自動的に給水され所定水位まで給水されると、ポンプを停止するが余剰分の水はオーバーフローパイプから貯水タンク内に戻すように構成されている。
【0007】
ところが、前述の様に給湯タンク内は、ヒータによって常にコーヒーの抽出に最適な温度まで加温された湯が貯められているわけであるが、ヒータの加熱時には湯面に高温の蒸気や空気を含んだ多くの泡を発生し、この泡がオーバーフローパイプの開口部を塞ぐことがある。
【0008】
特に、湯沸し時には湯面が大きく揺らいで、その波がオーバーフローパイプの開口部に入り込み該開口部を塞ぐような現象を生ずる。
【0009】
上述の様なオーバーフローパイプの開口部の閉塞により給湯タンク内が密閉状態となる。
【0010】
この様な密閉状態の時にコーヒーを抽出するために注湯バルブを開放した場合には給湯タンク内が負圧となり湯が出ない欠点があった。
【0011】
本発明は給湯タンク内の湯が沸騰加熱状態であっても常に注湯が出来るようにしたものである。
【0012】
【課題を解決するための手段】
本発明は、内容量の大きな貯溜タンクと、前記貯溜タンクと連結パイプにより連通し内部に湯沸ヒータを設けた前記貯溜タンクよりも内容量の小さい給湯タンクと、前記給湯タンク内の湯を抽出フィルターに注湯する注湯ノズルと、前記給湯タンクの側壁上部と前記貯溜タンク内とを連通し前記給湯タンク内の余剰水を貯溜タンク内に戻すオーバーフローパイプと、一端の開口部を前記給湯タンクのオーバーフローパイプの取水口よりも上方に連結し他端の開口部を前記貯溜タンク内に連通して連結した導出パイプとから構成したものである。
【0013】
また、前記導出パイプの他端の開口部は前記貯溜タンク内の貯溜水の水面よりも上方の空所に連通して連結したものである。
【0014】
【発明の実施の形態】
本発明の実施例を図面に基づいて説明する。図1は本発明の抽出器の概略配管図、図2は同じく他の実施例を示す概略配管図である。
【0015】
始めに図1について述べる。(1)は比較的内容量の大きい(約5リットル)貯溜タンクで、底壁に加温ヒータ(2)を取り付け側壁に湯温を検出して前記加温ヒータの発熱量を制御し約75度程度の湯温を保持する湯温センサー(3)を取り付けている。
【0016】
(4)は前記貯溜タンク(1)よりも上方に配置固定した前記貯溜タンクよりも内容量の小さい(約1リットル)給湯タンクで、底壁に湯沸ヒータ(5)を取り付け側壁に湯温を検出して湯沸ヒータの発熱量を制御し約95度から98度の湯温を保持する湯沸センサー(6)を取り付けている。
【0017】
(7)は前記貯溜タンク(1)の下部と前記給湯タンク(4)の上壁とを連通した連結パイプ、(8)は前記連結パイプ(7)の一部に設けたポンプで、前記給湯タンク内の残湯量が所定水位以下となった時に作動し所定水位まで給湯した時に停止するもので、図示していないが給湯タンク(4)内に設けたフロートスイッチによって作動・停止する。
【0018】
(9)は貯溜タンク(1)と給湯タンク(4)を連通するオーバーフローパイプで、一端の取水部(10)を前記給湯タンク(4)の側壁上部に連結し他端の排水部(11)を前記貯溜タンク(1)の内側上部の空所(12)に連通して取り付けており、一端の取水部(10)の位置は給湯タンク(4)内の残湯量が常に所定水位となって必要湯量を確保するところに設定されている。
【0019】
(13)は前記貯溜タンク(1)内と給湯タンク(4)内とを連通する導出パイプで、一端の開口部(14)を前記オーバーフローパイプ(9)の取水口(10)よりも上方に連結し他端の開口部(15)を貯溜タンク内の貯溜水の水面よりも上方の空所(12)内に連通して連結している。
【0020】
(16)は前記給湯タンク(4)の下方に設けられ操作釦(図示せず)によって開放して前記給湯タンク内の一定量の湯を注湯する注湯ノズル、(17)はコーヒー粉を収容する抽出フィルターで、前記注湯ノズル(16)よりも下方に配置している。
【0021】
次に動作について述べる。待機状態では貯溜タンク(1)内の湯と給湯タンク(4)内の湯は、湯温センサー(3)と湯沸センサー(6)によってそれぞれ予め設定された湯温に保持されており、ポンプ(8)は停止状態であり注湯ノズル(16)は閉止している。
【0022】
ここで、コーヒー粉を収容した抽出フィルター(17)を注湯ノズル(16)の下方にセットし操作釦を操作すると注湯ノズル(16)が開放して一定量の湯がコーヒー粉に注がれ抽出されたコーヒー液がカップ(18)に溜められる。
【0023】
一定量の注湯が終わると、注湯ノズル(16)が閉止し抽出作業を終了する。
【0024】
ところで、前述の待機状態において、給湯タンク(4)内の湯温は湯沸センサー(6)によって湯沸ヒータ(5)の発熱/停止の繰り返しにより約95度に保持されているわけであるが、湯沸し時に発生した気泡や沸騰に伴って発生した湯面の波がオーバーフローパイプ(9)の取水口(10)を塞いだ時に操作釦を操作して注湯作業を行った場合には導出パイプ(13)を介して貯溜タンク(1)内の空気を吸い込み給湯タンク(4)内の負圧を防止する。
【0025】
図2は他の実施例を示すもので、導出パイプ(13)の一端の開口部(14)を給湯タンク(4)の上壁に連結したもので、給湯タンク(4)内の湯面との離間距離を大きくとり湯沸し時に発生した気泡や波によって開口部(14)が塞がれないようにしている。
【0026】
【発明の効果】
以上の様に本発明は、一端の開口部を給湯タンクのオーバーフローパイプの取水口よりも上方に連結し他端の開口部を貯溜タンク内に連通して連結した導出パイプを設けたものであるから、仮に気泡や波等によってオーバーフローパイプの取水口が塞がれた時に注湯ノズルを開放しても給湯タンク内は導出パイプから空気を吸い込んで負圧にならずコーヒー等の抽出作業を行うことができる。
【0027】
また、導出パイプの他端の開口部は、貯溜タンク内の貯溜水の水面よりも上方の空所に連通して連結したものであるから、湯沸し時に発生した気泡や波がオーバーフローパイプの取水口のみならず導出パイプの開口部をも塞ぐことがない。
【図面の簡単な説明】
【図1】本発明の抽出器の概略配管図である。
【図2】同じく他の実施例を示す概略配管図である。
【符号の説明】
1 貯溜タンク
4 給湯タンク
5 湯沸ヒータ
7 連結パイプ
9 オーバーフローパイプ
10 取水口
12 空所
13 導出パイプ
14 開口部
16 注湯ノズル
17 抽出フィルター
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an extractor in which hot water in a storage tank is put into a hot water supply tank, and hot water in the hot water supply tank is poured when necessary to extract coffee or the like.
[0002]
[Prior art]
For example, there are many types of devices for pouring and extracting coffee powder put in a filter from home use to business use.
[0003]
In the case of home use, one coffee storage tank of about 750 to 800 ml is provided because the number of times of continuous extraction of coffee is small and does not require a large amount of hot water.
[0004]
In the case of business use, coffee is often extracted continuously, so a large amount of hot water is required, so the capacity of the hot water storage tank is increased. Therefore, there is a disadvantage that the power consumption of the heater increases, which affects the rated allowable power indoors, and that the electricity rate increases.
[0005]
For this reason, as shown in Japanese Patent Publication No. 4-72532, a hot water supply tank that always heats and maintains a temperature at which hot water can be poured, and communicates with this tank to supply a necessary amount of water to the hot water supply tank And a water storage tank for supplying water to the tank.
[0006]
[Problems to be solved by the invention]
Water supply from the water storage tank to the hot water supply tank is generally performed automatically by a pump or the like when the hot water in the hot water supply tank falls below a predetermined water level, and when the water is supplied to the predetermined water level, the pump is stopped. It is configured to return the water from the overflow pipe into the water storage tank.
[0007]
However, as described above, hot water heated by a heater to the optimal temperature for coffee extraction is always stored in the hot water supply tank.When the heater is heated, high-temperature steam or air is applied to the hot water surface. It generates a lot of bubbles, including bubbles, which can block the opening of the overflow pipe.
[0008]
In particular, at the time of boiling water, the surface of the water fluctuates greatly, causing a phenomenon that the wave enters the opening of the overflow pipe and closes the opening.
[0009]
Due to the closing of the opening of the overflow pipe as described above, the inside of the hot water supply tank is closed.
[0010]
When the pouring valve is opened to extract coffee in such a closed state, the inside of the hot water supply tank has a negative pressure so that hot water is not discharged.
[0011]
According to the present invention, hot water can always be poured even when the hot water in the hot water supply tank is in a boiling state.
[0012]
[Means for Solving the Problems]
The present invention provides a storage tank having a large content, a hot water supply tank communicating with the storage tank through a connecting pipe, and having a smaller content than the storage tank provided with a water heater therein, and extracting hot water from the hot water supply tank. A pouring nozzle for pouring the water into the filter, an overflow pipe that communicates the upper side wall of the hot water supply tank with the inside of the storage tank and returns surplus water in the hot water tank to the inside of the storage tank; And an outlet pipe connected above the intake port of the overflow pipe and having an opening at the other end connected to and connected to the inside of the storage tank.
[0013]
The opening at the other end of the outlet pipe is connected to a space above the surface of the stored water in the storage tank.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic piping diagram of an extractor of the present invention, and FIG. 2 is a schematic piping diagram showing another embodiment of the same.
[0015]
First, FIG. 1 will be described. (1) is a storage tank having a relatively large content (about 5 liters). A heating heater (2) is attached to the bottom wall, the hot water temperature is detected on the side wall, and the heating value of the heating heater is controlled to about 75. A hot water temperature sensor (3) that keeps the hot water temperature of about degree is attached.
[0016]
(4) a hot water supply tank having a smaller capacity (about 1 liter) than the storage tank disposed above and fixed to the storage tank (1), having a water heater (5) mounted on a bottom wall and a hot water temperature on a side wall; And a heater sensor (6) for controlling the amount of heat generated by the water heater and maintaining the water temperature of about 95 to 98 degrees is attached.
[0017]
(7) is a connecting pipe connecting the lower part of the storage tank (1) and the upper wall of the hot water supply tank (4), and (8) is a pump provided in a part of the connecting pipe (7). It operates when the remaining hot water level in the tank falls below a predetermined water level and stops when hot water is supplied to the predetermined water level, and is activated and stopped by a float switch (not shown) provided in the hot water supply tank (4).
[0018]
An overflow pipe (9) connects the storage tank (1) and the hot water supply tank (4). The overflow pipe (10) at one end is connected to the upper part of the side wall of the hot water supply tank (4), and the drainage part (11) at the other end. Is connected to a space (12) in the upper part of the inside of the storage tank (1), and the position of the water intake part (10) at one end is such that the amount of remaining hot water in the hot water supply tank (4) is always at a predetermined water level. It is set to secure the required amount of hot water.
[0019]
(13) is an outlet pipe that connects the inside of the storage tank (1) and the inside of the hot water supply tank (4), and the opening (14) at one end is located above the water intake (10) of the overflow pipe (9). The opening (15) at the other end is connected to and connected to a space (12) above the level of the stored water in the storage tank.
[0020]
(16) a pouring nozzle provided below the hot water tank (4) and opened by an operation button (not shown) to pour a certain amount of hot water in the hot water tank, and (17) a coffee powder. The extraction filter to be accommodated is disposed below the pouring nozzle (16).
[0021]
Next, the operation will be described. In the standby state, the hot water in the storage tank (1) and the hot water in the hot water supply tank (4) are maintained at preset hot water temperatures by a hot water temperature sensor (3) and a hot water sensor (6), respectively. (8) is a stopped state, and the pouring nozzle (16) is closed.
[0022]
Here, when the extraction filter (17) containing the coffee powder is set below the pouring nozzle (16) and the operation button is operated, the pouring nozzle (16) is opened and a certain amount of hot water is poured into the coffee powder. The extracted coffee liquid is stored in the cup (18).
[0023]
When a certain amount of pouring is completed, the pouring nozzle (16) closes and the extraction operation is completed.
[0024]
By the way, in the standby state described above, the temperature of the hot water in the hot water supply tank (4) is maintained at about 95 degrees by the repetition of heating / stopping of the hot water heater (5) by the hot water sensor (6). When the pouring operation is performed by operating the operation button when air bubbles generated at the time of boiling water or waves of the surface of the water generated due to boiling block the intake port (10) of the overflow pipe (9). The air in the storage tank (1) is sucked through (13) to prevent the negative pressure in the hot water supply tank (4).
[0025]
FIG. 2 shows another embodiment, in which an opening (14) at one end of an outlet pipe (13) is connected to an upper wall of a hot water supply tank (4). The opening distance (14) is made large so that the opening (14) is not blocked by bubbles or waves generated at the time of boiling water.
[0026]
【The invention's effect】
As described above, the present invention is provided with an outlet pipe in which the opening at one end is connected above the water intake of the overflow pipe of the hot water supply tank, and the opening at the other end is connected to and connected to the inside of the storage tank. Therefore, even if the pouring nozzle is opened when the intake port of the overflow pipe is closed by air bubbles or waves, the inside of the hot water supply tank draws air from the outlet pipe and does not become negative pressure, and extracts coffee etc. be able to.
[0027]
In addition, the opening at the other end of the outlet pipe is connected to a space above the surface of the stored water in the storage tank and is connected thereto, so that bubbles and waves generated at the time of boiling water are taken out of the intake pipe of the overflow pipe. In addition, it does not block the opening of the outlet pipe.
[Brief description of the drawings]
FIG. 1 is a schematic piping diagram of an extractor of the present invention.
FIG. 2 is a schematic piping diagram showing another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Storage tank 4 Hot water tank 5 Hot water heater 7 Connecting pipe 9 Overflow pipe 10 Water intake port 12 Vacancy 13 Outgoing pipe 14 Opening 16 Pouring nozzle 17 Extraction filter

Claims (2)

内容量の大きな貯溜タンクと、前記貯溜タンクと連結パイプにより連通し内部に湯沸ヒータを設けた前記貯溜タンクよりも内容量の小さい給湯タンクと、前記給湯タンク内の湯を抽出フィルターに注湯する注湯ノズルと、前記給湯タンクの側壁上部と前記貯溜タンク内とを連通し前記給湯タンク内の余剰水を貯溜タンク内に戻すオーバーフローパイプと、一端の開口部を前記給湯タンクのオーバーフローパイプの取水口よりも上方に連結し他端の開口部を前記貯溜タンク内に連通して連結した導出パイプとから構成したことを特徴とする抽出器。A storage tank having a large internal capacity, a hot water supply tank communicating with the storage tank through a connecting pipe, and having a smaller internal capacity than the storage tank provided with a water heater therein, and pouring hot water in the hot water supply tank into an extraction filter. A hot water supply nozzle, an overflow pipe communicating the upper side wall of the hot water supply tank with the inside of the storage tank and returning excess water in the hot water supply tank into the storage tank, and an opening at one end of the overflow pipe of the hot water supply tank. An outlet pipe connected above the water intake and having an opening at the other end connected to and connected to the inside of the storage tank. 前記導出パイプの他端の開口部は前記貯溜タンク内の貯溜水の水面よりも上方の空所に連通して連結したことを特徴とする請求項1に記載の抽出器。2. The extractor according to claim 1, wherein an opening at the other end of the outlet pipe communicates with and is connected to a space above a surface of stored water in the storage tank. 3.
JP29200799A 1999-03-26 1999-10-14 Extractor Expired - Fee Related JP3579312B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP29200799A JP3579312B2 (en) 1999-10-14 1999-10-14 Extractor
PCT/JP2000/001716 WO2000057761A1 (en) 1999-03-26 2000-03-21 Automatic extractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29200799A JP3579312B2 (en) 1999-10-14 1999-10-14 Extractor

Publications (2)

Publication Number Publication Date
JP2001112633A JP2001112633A (en) 2001-04-24
JP3579312B2 true JP3579312B2 (en) 2004-10-20

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Publication number Priority date Publication date Assignee Title
JP7317357B2 (en) * 2019-07-10 2023-07-31 株式会社大都技研 Cistern

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