JP3031082B2 - Coffee extractor - Google Patents
Coffee extractorInfo
- Publication number
- JP3031082B2 JP3031082B2 JP4274008A JP27400892A JP3031082B2 JP 3031082 B2 JP3031082 B2 JP 3031082B2 JP 4274008 A JP4274008 A JP 4274008A JP 27400892 A JP27400892 A JP 27400892A JP 3031082 B2 JP3031082 B2 JP 3031082B2
- Authority
- JP
- Japan
- Prior art keywords
- extraction chamber
- coffee
- extraction
- storage tank
- water
- 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
Links
Landscapes
- Apparatus For Making Beverages (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、ドリップ式のコーヒー
抽出器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drip coffee extractor.
【0002】[0002]
【従来の技術】一般にコーヒー抽出器は粉砕したコーヒ
ー豆(以下コーヒー粉と称す)をペーパーフィルターを
載置した抽出室に入れ、その上から熱湯を注ぐいわゆる
ドリップ式のものが多い。このドリップ式のコーヒー抽
出器においてはなるべく熱いお湯を注いで短時間にコー
ヒーの旨味だけを抽出し、時間の経過とともに抽出され
る渋みを押さえることが必要である。従来より、お湯の
温度を上げるためにヒーターを複数個設けたり、貯水槽
内の水を循環加熱する方法が考案されてきた。2. Description of the Related Art In general, there are many so-called drip-type coffee extractors in which ground coffee beans (hereinafter referred to as coffee powder) are put into an extraction chamber in which a paper filter is placed, and hot water is poured from above. In this drip-type coffee extractor, it is necessary to pour hot water as much as possible to extract only the umami of the coffee in a short time, and to suppress the astringency extracted over time. Conventionally, a method of providing a plurality of heaters for raising the temperature of hot water or circulating and heating water in a water storage tank has been devised.
【0003】図7、図8、図9は従来の貯水槽内の水を
循環加熱するドリップ式のコーヒー抽出器を示し、以
下、構成と動作を説明する。FIGS. 7, 8 and 9 show a conventional drip-type coffee extractor for circulating and heating water in a water storage tank, and its structure and operation will be described below.
【0004】コーヒー抽出器の本体25は貯水槽26と
抽出室27と抽出室27の下方に位置させるコーヒー容
器28と貯水槽26内の水の加熱とコーヒー容器28内
のコーヒーを保温するヒーター部29を備えている。[0004] The main body 25 of the coffee extractor includes a water storage tank 26, an extraction chamber 27, a coffee container 28 positioned below the extraction chamber 27, a heater for heating water in the water storage tank 26, and keeping the coffee in the coffee container 28 warm. 29.
【0005】貯水槽26の水は底部より逆止弁30を介
してパイプ31により取り出されヒーター部29を経て
昇水管32により押し上げられ、抽出室27の上方に案
内されてドーム状の散水カバー33に向けて吐出し、抽
出室27上方に配された浄化ユニット34を通過し抽出
室27内のコーヒー粉にまんべんなく熱湯が注がれる。
なお35は浄化ユニット内に充填された浄化用の活性炭
である。The water in the water storage tank 26 is taken out from the bottom by a pipe 31 through a check valve 30, is pushed up by a water rising pipe 32 through a heater section 29, is guided above the extraction chamber 27, and is guided by a dome-shaped watering cover 33. The hot water is evenly poured into the coffee powder in the extraction chamber 27 after passing through the purification unit 34 disposed above the extraction chamber 27.
Reference numeral 35 denotes activated carbon for purification filled in the purification unit.
【0006】また、この従来例のコーヒー抽出器は、コ
ーヒー粉に注ぐ熱湯を抽出に適した温度に上げるために
ヒーター部29を何回か通るように循環させ、約70℃
になったとき吐出管36より吐出させる。したがって7
0℃の温度をセンサーで検出して湯水の循環流路より吐
出流路に流路切換筐37で切替えられるようになってい
る。In this conventional coffee extractor, the hot water poured into the coffee powder is circulated through the heater section 29 several times in order to raise the temperature to a temperature suitable for extraction.
Is discharged from the discharge pipe 36. Therefore 7
A temperature of 0 ° C. is detected by a sensor, and the temperature can be switched from the hot water circulation flow path to the discharge flow path by the flow path switching casing 37.
【0007】すなわち図8に示すように、貯水槽26内
には温度センサー部38を設けてあり、コイル状の形状
記憶合金よりなる作用体39と付勢ばね40を組み合わ
せた作動材41を垂直に、かつ、上下に擢動自在に設け
ている。この作動材41の上部は流路切換筐37の底板
に形成された弁口42に挿入され、前記作動材41上部
に設けた弁体43により弁口42を開放するようにして
いる。That is, as shown in FIG. 8, a temperature sensor 38 is provided in the water storage tank 26, and an operating member 41 in which an operating body 39 made of a coil-shaped shape memory alloy and an urging spring 40 are combined is vertically moved. And can be moved up and down freely. The upper portion of the operating member 41 is inserted into a valve port 42 formed on the bottom plate of the flow path switching casing 37, and the valve port 42 is opened by a valve element 43 provided on the upper portion of the operating member 41.
【0008】前記流路切換筐37の底板部の第1の接続
口37aには昇水管32が接続され、流路切換筐37の
側部の第2の接続口37bには吐出管36が接続されて
いる。そして吐出管36の先端は散水カバー33、すな
わち上方向に折りまげられ、かつ流路切換筐37よりも
上方に位置させている。なお、弁口42は貯水槽26に
連通させている。A water rising pipe 32 is connected to a first connection port 37a on the bottom plate of the flow path switching casing 37, and a discharge pipe 36 is connected to a second connection port 37b on the side of the flow path switching casing 37. Have been. The distal end of the discharge pipe 36 is folded upward in the watering cover 33, that is, above the flow path switching casing 37. The valve port 42 communicates with the water storage tank 26.
【0009】抽出室27は上回転軸27aと下回転軸2
7bにより本体25の上軸受け部25aおよび下軸受け
部25bに回動自在に設けてあり、抽出室27に設けた
爪部27cが本体25に設けた係止凸部25cに係合
し、本体25に係止されている。The extraction chamber 27 has an upper rotating shaft 27a and a lower rotating shaft 2
7b, the upper bearing portion 25a and the lower bearing portion 25b of the main body 25 are rotatably provided on the upper bearing portion 25a and the claw portion 27c provided in the extraction chamber 27 engages with the locking projection 25c provided on the main body 25. It is locked to.
【0010】上記構成において、抽出室27の本体25
への着脱は次のように行われる。すなわち、抽出室27
は上回転軸27aと下回転軸27bを中心に回転し水平
方向に本体25より引き出される。上回転軸27aの根
元と本体25の上軸受け部25aは一定の間隔(x)を
持っており、抽出室27上端が本体25より離れればこ
の間隔分(x)だけ抽出室27は上方に移動できる。下
回転軸27bは前記一定間隔(x)より僅かに短く、抽
出室27をいっぱいに上方向に移動させれば、下回転軸
27bは下軸受け部25bより外れ、その後抽出室27
を下げれば本体25よりはずすことができる。In the above configuration, the main body 25 of the extraction chamber 27
The attachment / detachment to the device is performed as follows. That is, the extraction chamber 27
Rotates about the upper rotation shaft 27a and the lower rotation shaft 27b, and is pulled out from the main body 25 in the horizontal direction. The root of the upper rotation shaft 27a and the upper bearing portion 25a of the main body 25 have a certain interval (x). When the upper end of the extraction chamber 27 is separated from the main body 25, the extraction chamber 27 moves upward by this interval (x). it can. The lower rotation shaft 27b is slightly shorter than the predetermined interval (x), and if the extraction chamber 27 is moved fully upward, the lower rotation shaft 27b is disengaged from the lower bearing portion 25b, and thereafter the extraction chamber 27
Can be removed from the main body 25.
【0011】コーヒー抽出の準備作業では上回転軸27
aと下回転軸27bを中心に抽出室27は回転し水平方
向に本体25より引き出される(図9)。ペーパーフィ
ルター45を抽出室27の壁面に添わせてセットしコー
ヒー粉を入れた後、抽出室蓋44で抽出室27上面を覆
ったあと本体25に係止させる。In the preparation for coffee extraction, the upper rotating shaft 27 is used.
The extraction chamber 27 rotates about a and the lower rotation shaft 27b and is pulled out from the main body 25 in the horizontal direction (FIG. 9). After the paper filter 45 is set along the wall surface of the extraction chamber 27 and the coffee powder is put therein, the upper surface of the extraction chamber 27 is covered with the extraction chamber lid 44 and then locked to the main body 25.
【0012】コーヒーの抽出は貯水槽26内の水が引き
出されてヒーター部29で加熱され、昇水管32を通っ
て流路切換筐37内に案内される。湯温が70℃より低
い場合、形状記憶合金よりなる作用体39は収縮形状に
あり、付勢ばね40により作動材41は上動しており、
弁体43は弁口42を開いている。したがって前記流路
切換筐37に案内された湯水は弁口42より貯水槽26
にもどされる。すなわち、貯水槽26の水は70℃にな
るまで循環する。ここで、流路切換筐37の第2の接続
口37b、すなわち、吐出管36側は弁がなく開放され
ているが、前記吐出管36の先端が流路切換筐37より
も上方の位置にあり、したがって吐出管36より湯水が
吐出することはない。In the extraction of coffee, water in the water storage tank 26 is drawn out, heated by the heater unit 29, and guided into the flow path switching casing 37 through the water rising pipe 32. When the hot water temperature is lower than 70 ° C., the working body 39 made of a shape memory alloy is in a contracted shape, and the operating material 41 is moved upward by the biasing spring 40,
The valve element 43 has an opening 42. Therefore, the hot and cold water guided to the flow path switching casing 37 is supplied from the valve port 42 to the water storage tank 26.
Returned. That is, the water in the water storage tank 26 circulates until it reaches 70 ° C. Here, the second connection port 37b of the flow path switching case 37, that is, the discharge pipe 36 side is open without a valve, but the tip of the discharge pipe 36 is located at a position above the flow path switching case 37. There is, therefore, no hot or cold water discharged from the discharge pipe 36.
【0013】つぎに湯水が70℃になると形状記憶合金
よりなる作用体39が伸長し、作動材41は付勢ばね4
0に打ち勝って下動し、弁体43で弁口42を閉じる。
したがって流路切換筐37より貯水槽26に戻る循環流
路は断たれ、昇水管32より上昇した熱湯が吐出管36
より吐出することとなる。すなわち1つの弁体で循環流
路と吐出流路の切換えを行なう。Next, when the temperature of the hot water reaches 70 ° C., the working body 39 made of a shape memory alloy extends, and the operating material 41 is
It moves downward by overcoming 0 and closes the valve port 42 with the valve element 43.
Therefore, the circulation flow path returning to the water storage tank 26 from the flow path switching casing 37 is cut off, and the hot water rising from the water rising pipe 32 is discharged from the discharge pipe 36.
It will discharge more. That is, the switching between the circulation flow path and the discharge flow path is performed by one valve element.
【0014】吐出管36から出た熱湯は散水カバー33
に向かって吹き上がり集水斜面47により浄化ユニット
35に集められ浄化ユニット35を通過して抽出室蓋4
4上に落下する。なお浄化ユニット35は筒状の樹脂製
容器の上面および下面をネットで覆いその中に活性炭を
収容していて、熱湯中のカルキ成分等を飛散させる。こ
の浄化ユニット35を通過した熱湯は抽出室蓋44中央
の散水部44aに集まり上記散水部44aの底面の複数
設けられた穴から万遍なくコーヒー粉にかかりコーヒー
が抽出されてコーヒー容器28に収容される。The hot water discharged from the discharge pipe 36 is supplied to the sprinkling cover 33.
The water is collected by the purification unit 35 by the water collecting slope 47 and passes through the purification unit 35 to pass through the extraction chamber cover 4.
4 fall on. The purifying unit 35 covers the upper and lower surfaces of the cylindrical resin container with a net and stores activated carbon therein, and scatters the calcium component and the like in the boiling water. The hot water that has passed through the purifying unit 35 is collected in the water sprinkling section 44a at the center of the extraction chamber lid 44, and is uniformly scattered with coffee powder through a plurality of holes provided on the bottom surface of the water sprinkling section 44a, so that coffee is extracted and stored in the coffee container 28. Is done.
【0015】コーヒー容器28にコーヒーが残った場合
はヒーター部29上に載置しておけば保温できる。If coffee remains in the coffee container 28, it can be kept warm by placing it on the heater 29.
【0016】使用後は前記の抽出室27の着脱方法によ
り本体25より取り外し洗浄手入れをする。After use, the extraction chamber 27 is detached from the main body 25 by the above-mentioned method of attachment and detachment, and is cleaned and cleaned.
【0017】[0017]
【発明が解決しようとする課題】前記従来のコーヒー抽
出器においての第一の課題は、抽出室27にペーパーフ
ィルター45およびコーヒー粉46をセットするときに
回動自在の抽出室27を本体25より引き出して抽出室
27の上面を開放するが、この抽出室27の上端が本体
25より開放された時点より着脱自在であり準備作業中
に抽出室27に触れると抽出室27が回転しコーヒー粉
46が入れにくいばかりでなく、場合によっては上方に
動いて下回転軸27bが下軸受け部25bから外れるこ
とがあった。外れた場合、抽出室27が本体25より落
下しコーヒー粉46がテーブル上に散らかるという不便
がある。A first problem with the above-mentioned conventional coffee extractor is that when the paper filter 45 and the coffee powder 46 are set in the extraction chamber 27, the rotatable extraction chamber 27 is moved from the main body 25. The extraction chamber 27 is pulled out to open the upper surface of the extraction chamber 27. The upper end of the extraction chamber 27 is detachable from the time when the upper end of the extraction chamber 27 is opened from the main body 25. Not only is it difficult to insert, but in some cases, the lower rotating shaft 27b may move upward and come off the lower bearing portion 25b. When it comes off, there is an inconvenience that the extraction chamber 27 falls from the main body 25 and the coffee powder 46 is scattered on the table.
【0018】第二の課題はコーヒー粉は種類によっては
炭酸ガス等を多く含んでおり、貯水槽26内の水は循環
加熱されてコーヒー粉に注がれる熱湯の温度が高いため
上記ガス成分がでやすくなる。このために抽出室27内
での発泡が著しく抽出室27から溢れることがある。The second problem is that the coffee powder contains a large amount of carbon dioxide or the like depending on the type, and the water in the water storage tank 26 is circulated and heated, and the temperature of the hot water poured into the coffee powder is high. It becomes easier. For this reason, foaming in the extraction chamber 27 may remarkably overflow from the extraction chamber 27.
【0019】本発明は前記従来の問題に留意し、美味し
いコーヒーの抽出が出来るコーヒー抽出器を提供するこ
とを目的とするものである。An object of the present invention is to provide a coffee extractor capable of extracting delicious coffee while keeping in mind the above conventional problems.
【0020】[0020]
【課題を解決するための手段】上記目的を解決するため
に、本発明は、本体と、貯水槽と、コーヒーを抽出する
抽出室とこの抽出室を覆う抽出室蓋と、貯水槽の底部よ
り逆止弁を介して導出された昇水管への通水を加熱する
ヒーター部とを備え、前記抽出室は抽出室に設けた上回
転軸と下回転軸により本体に開閉自在かつ着脱自在であ
るとともに、本体の軸受け部周囲に設けた回り止め凸部
と、抽出室の回転軸部周囲に設けた回り止め凸部の係合
により前記抽出室を一定の開き角度で保持できるコーヒ
ー抽出器とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned object, the present invention comprises a main body, a water storage tank, an extraction chamber for extracting coffee, an extraction chamber lid covering the extraction chamber, and a bottom of the water storage tank. and a heater unit for heating the water passing to the riser pipe derived through a check valve, exceeded the extraction chamber provided in the extraction chamber
Rotating shaft and lower rotating shaft that can be opened and closed and detachable from the main body, and a detent projection provided around the bearing of the main body.
And the rotation-preventing projection provided around the rotation shaft of the extraction chamber.
Thus, a coffee extractor capable of holding the extraction chamber at a constant opening angle is obtained .
【0021】また、本体と、貯水槽と、コーヒーを抽出
する抽出室とこの抽出室を覆う抽出室蓋と、貯水槽の底
部より逆止弁を介して導出された昇水管への通水を加熱
するヒーター部とを備え、前記抽出室は抽出室に設けた
上回転軸と下回転軸により本体に開閉自在かつ着脱自在
であるとともに、上方向に膨らんだ泡収容部を設け、そ
の泡収容部に抜気穴を設けた抽出室蓋を有するコーヒー
抽出器とする。 Further , the main body, the water storage tank, and the coffee are extracted.
Extraction chamber, the extraction chamber lid that covers the extraction chamber, and the bottom of the water storage tank.
Heats the water flow to the riser pipe drawn out from the section through the check valve
And an extraction chamber provided in the extraction chamber.
Openable and closable to the main body by the upper and lower rotating shafts and detachable
And a foam container that swells upwards.
Having an extraction chamber lid provided with a vent hole in a foam storage part
Let it be an extractor.
【0022】また、本体と、貯水槽と、コーヒーを抽出
する抽出室とこの抽出室を覆う抽出室蓋と、貯水槽の底
部より逆止弁を介して導出された昇水管への通水を加熱
するヒーター部とを備え、前記抽出室は抽出室に設けた
上回転軸と下回転軸により本体に開閉自在かつ着脱自在
であるとともに、抽出室の上端近傍全周にU字状溝を設
けるとともに、抽出室蓋をそのU字状溝に嵌合載置する
コーヒー抽出器とする。 Further , the main body, the water tank, and the coffee are extracted.
Extraction chamber, the extraction chamber lid that covers the extraction chamber, and the bottom of the water storage tank.
Heats the water flow to the riser pipe drawn out from the section through the check valve
And an extraction chamber provided in the extraction chamber.
Openable and closable to the main body by the upper and lower rotating shafts and detachable
In addition, a U-shaped groove is set up all around the upper end of the extraction chamber.
And put the extraction chamber lid in the U-shaped groove.
Use as a coffee extractor.
【0023】さらに、本体と、貯水槽と、コーヒーを抽
出する抽出室とこの抽出室を覆う抽出室蓋と、貯水槽の
底部より逆止弁を介して導出された昇水管への通水を加
熱するヒーター部と、昇水管の上端が接続された流路切
替筐とを備え、前記抽出室は抽出室に設けた上回転軸と
下回転軸により本体に開閉自在かつ着脱自在であるとと
もに、前記流路切替筐の底部に蒸気抜き穴を設けたコー
ヒー抽出器とする。 Further, the main body, the water tank, and the coffee are extracted.
Of the extraction chamber, the extraction chamber cover that covers the extraction chamber, and the water tank.
Add water to the riser pipe from the bottom through the check valve.
Flow path disconnection where the heater section to be heated and the upper end of the riser pipe are connected
A replacement case, and the extraction chamber is provided with an upper rotation shaft provided in the extraction chamber.
When it can be opened and closed and detachable from the main body by the lower rotating shaft
In particular, a cord provided with a steam vent hole at the bottom of the channel switching casing.
And a heat extractor.
【0024】[0024]
【作用】上記構成により、抽出室の着脱可能な開き角度
が規制されるので不用意に外れることがなくなるととも
に、抽出室を回り止め凸部で仮止めできるのでコーヒー
粉を入れるときに抽出室がふらつかなくなる。[Action] Ri by the above configuration, there is no possible inadvertently removed because detachable opening angle of extraction outlet chamber is restricted, since the extraction chamber Dekiru tacking with detent protrusion when making coffee powder The extraction chamber will not stabilize.
【0025】また、抽出室蓋の泡収容部の空気が抜気穴
から排出されるので泡が袋状部に収容され抽出室から溢
れるのを防ぐとともに、浄化ユニットを通過した熱湯は
抽出室中央の散水部に設けた筒状の注湯筒によりコーヒ
ー粉上に案内されるので熱湯の落下による衝撃が小さく
なり発泡を押さえることができる。また流路切替筐に蒸
気抜き穴を設けることにより熱湯の蒸気を事前に抜気で
きるので抽出室での発泡が少なくなる。さらに、抽出室
内と外部は抽出室に設けたU字状溝でシールされている
ので泡が外部に出ない。 Further, since the air bubbles accommodating portion of the extraction chamber cover is discharged from the air vent hole prevents the foam from overflowing housed extraction chamber in a bag-like portion, the hot water which has passed through the purification unit extraction chamber center Is guided over the coffee powder by the cylindrical pouring cylinder provided in the water spraying section, so that the impact due to the drop of the hot water is reduced and foaming can be suppressed. In addition, by providing a steam vent hole in the flow path switching casing, steam of the hot water can be evacuated in advance, so that foaming in the extraction chamber is reduced. Further, since the inside and outside of the extraction chamber are sealed by a U-shaped groove provided in the extraction chamber, bubbles do not come out to the outside.
【0026】[0026]
【実施例】以下本発明の一実施例を図1〜図6にもとづ
き説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.
【0027】1はコーヒー抽出器本体、2は貯水槽、3
は抽出室、4はヒーター部、5は抽出室蓋、6はコーヒ
ー容器、7はフィルター、8は散水カバーである。図
2、図3は抽出室3の本体1とのそれぞれ上下の取りつ
け部の分解詳細図である。抽出室3はその一側面の上下
に上回転軸3aと下回転軸3bを有しておりそれぞれ本
体1の上軸受け部1aと下軸受け部1bに回動自在に収
容されている。1 is a coffee extractor main body, 2 is a water storage tank, 3
Is an extraction chamber, 4 is a heater section, 5 is an extraction chamber lid, 6 is a coffee container, 7 is a filter, and 8 is a sprinkling cover. 2 and 3 are detailed exploded views of upper and lower mounting portions of the extraction chamber 3 with respect to the main body 1, respectively. The extraction chamber 3 has an upper rotating shaft 3a and a lower rotating shaft 3b on one side of the upper and lower sides thereof, and is rotatably accommodated in the upper bearing portion 1a and the lower bearing portion 1b of the main body 1, respectively.
【0028】前記上回転軸3aの根元には凸部3dが設
けてあり上軸受け部1aに設けた切り欠き部1cと上記
ストッパー3cの位置の合った抽出室3の開き角度で抽
出室3は上方向に移動できる。また、下軸受け部1bの
周囲には第一の回り止め1dと第二の回り止め1eを設
けてあり、抽出室3の下回転軸3bの根元にも回り止め
凸部3dが設けてある。抽出室3の前記回転軸の設けて
ある反対側面の下部には従来例と同様に爪部が設けてあ
り本体に設けた係止凸部に係止されている(図示せ
ず)。そして抽出室3は二重壁構造になっておりその上
端及び下端近傍で二重壁間の空間が外部への開口部3
f、3gを有している。A protrusion 3d is provided at the base of the upper rotating shaft 3a, and the extraction chamber 3 is formed by the opening angle of the extraction chamber 3 where the notch 1c provided in the upper bearing 1a and the stopper 3c are aligned. Can move upward. A first detent 1d and a second detent 1e are provided around the lower bearing 1b, and a detent projection 3d is also provided at the base of the lower rotation shaft 3b of the extraction chamber 3. A claw portion is provided at a lower portion of the extraction chamber 3 on the opposite side where the rotation shaft is provided, as in the conventional example, and is locked by a locking projection provided on the main body (not shown). The extraction chamber 3 has a double wall structure, and the space between the double walls near the upper end and the lower end has an opening 3 to the outside.
f, 3 g.
【0029】水への加熱は次のように行われる。すなわ
ち、貯水槽2の水を貯水槽2の下部より逆止弁9を介し
てパイプ10で引き出し、ヒーター部4で加熱し、昇水
管11で湯水を押し上げ前記散水カバー8に向かって吐
出させる。活性炭12aを充填した浄化ユニット12を
抽出室3の上方に配し、吐出管13より吐出された熱湯
は散水カバー8に当たり集水壁8aによって本体1に形
成された集水斜面14を流れて前記浄化ユニット12を
通過し、抽出室蓋3に注湯される。The heating to water is performed as follows. That is, the water in the water storage tank 2 is drawn out from the lower part of the water storage tank 2 by the pipe 10 via the check valve 9, heated by the heater unit 4, and the hot water is pushed up by the water rising pipe 11 and discharged toward the water spray cover 8. The purification unit 12 filled with the activated carbon 12a is arranged above the extraction chamber 3, and the hot water discharged from the discharge pipe 13 hits the sprinkling cover 8 and flows on the water collecting slope 14 formed on the main body 1 by the water collecting wall 8a. It passes through the purification unit 12 and is poured into the extraction chamber lid 3.
【0030】浄化ユニット12はカートリッジ状に構成
されて前記集水斜面14の下方に設けた係止部15に着
脱自在に係止されている。そして、浄化ユニット12は
上面および下面に通水ネット12b、12cを有し、活
性炭12aは破砕したヤシガラ活性炭を使用している。
前記係止部15の周囲には防水壁16が構成されており
前記散水カバー8の内面に構成された集水壁8aが上記
防水壁16の外周に構成されているので散水カバー8の
内部へ吐出された熱湯は前記集水斜面14の上にすべて
合流し係止部15に洩れることなくすべて浄化ユニット
12を通過する。ここで浄化ユニット12内の活性炭1
1aはカルキ、カビ臭等の吸着を行い美味しいコーヒー
抽出に寄与する。The purifying unit 12 is formed in a cartridge shape and is detachably engaged with an engaging portion 15 provided below the water collecting slope 14. The purifying unit 12 has water passage nets 12b and 12c on the upper and lower surfaces, and the activated carbon 12a uses crushed coconut shell activated carbon.
A waterproof wall 16 is formed around the locking portion 15, and a water collecting wall 8 a formed on the inner surface of the water spray cover 8 is formed on the outer periphery of the waterproof wall 16. All the discharged hot water merges on the water collecting slope 14 and passes through the purification unit 12 without leaking to the locking portion 15. Here, activated carbon 1 in purification unit 12
1a adsorbs chalky and musty odors and contributes to the extraction of delicious coffee.
【0031】流路切替部の構成は従来例において説明し
たように貯水槽2の水はヒーター部4を何度か通してコ
ーヒー抽出に適した約70℃になったときに吐出管13
より吐出される。すなわち図1および図4に示すよう
に、貯水槽2内には作動機構24を設けてあり、コイル
状の形状記憶合金よりなる作用体18と付勢バネ19を
組み合わせた作動材20を垂直に、かつ上下に摺動自在
に設けている。As described in the prior art, the structure of the flow path switching section is such that the water in the water storage tank 2 is passed through the heater section 4 several times and reaches a temperature of about 70 ° C. suitable for coffee extraction.
It is discharged from. That is, as shown in FIGS. 1 and 4, an operating mechanism 24 is provided in the water storage tank 2, and an operating material 20 in which an operating body 18 made of a coil-shaped shape memory alloy and an urging spring 19 are combined is vertically moved. And slidably provided up and down.
【0032】この作動材20の上部は流路切替筐21の
底板に形成された弁口22の上部に設けた弁体23によ
り弁口22を開放するようにしている。前記流路切替筐
21の底板部の第1の接続口21aには昇水管11が接
続され、流路切替筐21の側部の第2の接続口21bに
は吐出管13が接続されている。そして吐出管13の先
端は散水カバー8の方向、すなわち上方に折り曲げら
れ、かつ流路切替筐21よりも上方に位置させている。
なお、弁口22は貯水槽2に連通させている。The upper portion of the operating member 20 is opened by a valve 23 provided above the valve opening 22 formed in the bottom plate of the flow path switching casing 21. The riser pipe 11 is connected to the first connection port 21a of the bottom plate portion of the flow path switching casing 21, and the discharge pipe 13 is connected to the second connection port 21b on the side of the flow path switching casing 21. . The tip of the discharge pipe 13 is bent in the direction of the watering cover 8, that is, upward, and is positioned above the flow path switching casing 21.
Note that the valve port 22 communicates with the water storage tank 2.
【0033】そして流路切替筐21はその底部に蒸気抜
き穴21cを有し流路切替筐21内の蒸気を貯水槽2内
に一部逃がしている。The channel switching casing 21 has a steam vent hole 21c at the bottom thereof, and the steam in the channel switching casing 21 is partially released into the water storage tank 2.
【0034】上記構成において貯水槽2内の水は逆止弁
9を介して引き出されヒーター部4で加熱され、昇水管
11を通って流路切替筐21内に導かれる。湯温が70
℃より低い場合、Ni−Ti−Cuを主成分とする形状
記憶合金(以下三元系SMAと称す)よりなる作用体1
8は収縮形状にあり、付勢バネ19により作動体20は
上動しており、弁体23は弁口22を開いている。In the above configuration, the water in the water storage tank 2 is drawn out through the check valve 9, heated by the heater unit 4, and guided into the flow path switching casing 21 through the water rising pipe 11. Hot water is 70
When the temperature is lower than 0 ° C., the acting body 1 made of a shape memory alloy containing Ni—Ti—Cu as a main component (hereinafter referred to as a ternary SMA)
Reference numeral 8 denotes a contracted shape, the operating body 20 is moved upward by the biasing spring 19, and the valve body 23 has the valve port 22 opened.
【0035】したがって前記流路切替筐21に導かれた
湯水は弁口22より貯水槽2内にもどされる。すなわ
ち、貯水槽2内の水は70℃になるまで循環される。こ
こで流路切替筐21の第2の接続口21a、すなわち、
吐出管13側には弁がなく開放されているが、前記吐出
管13の先端が流路切替筐21より上方の位置にあるの
で吐出管13より湯水が吐出することはない。Therefore, the hot and cold water guided to the flow path switching casing 21 is returned to the water storage tank 2 through the valve port 22. That is, the water in the water storage tank 2 is circulated until it reaches 70 ° C. Here, the second connection port 21a of the flow path switching casing 21, that is,
Although there is no valve on the side of the discharge pipe 13 and it is open, hot water is not discharged from the discharge pipe 13 because the tip of the discharge pipe 13 is located above the flow path switching casing 21.
【0036】つぎに貯水槽2内の水が加熱され70℃に
なると三元系SMAよりなる作用体18が伸長し、作動
材20は付勢バネ19に打ち勝って下動し、弁体23で
弁口22を閉じる。したがって流路切替筐21より貯水
槽2に戻る流路は閉鎖され、昇水管12より上昇した熱
湯は吐出管13より吐出することとなる。吐出が進行し
貯水槽2内の湯量が減じて三元係SMAからなる作用体
20が空中に露出しても降温時の発生力は昇温時の発生
力よりも5〜10℃低い温度で同等なる為、抽出途中で
弁体23が弁口22を閉鎖することはない。Next, when the water in the water storage tank 2 is heated to 70 ° C., the working body 18 made of the ternary SMA expands, and the operating material 20 overcomes the biasing spring 19 and moves downward. The valve port 22 is closed. Therefore, the flow path returning from the flow path switching casing 21 to the water storage tank 2 is closed, and the hot water rising from the water rising pipe 12 is discharged from the discharge pipe 13. Even when the discharge proceeds and the amount of hot water in the water storage tank 2 is reduced and the working body 20 composed of the three-way SMA is exposed in the air, the power generated at the time of temperature decrease is 5 to 10 ° C. lower than the power generated at the time of temperature rise. Since they are equivalent, the valve 23 does not close the valve port 22 during extraction.
【0037】さらに、作用体18が空中に露出して貯水
槽2内の湯水が吐出完了するまでの時間は短い方が作用
体の温度の低下も少ないので作用体18は貯水槽2の底
部近くに設けてある。Further, the shorter the time until the working body 18 is exposed to the air and the discharge of the hot water in the water storage tank 2 is shorter, the lower the temperature of the working body is, the lower the working body 18 is. It is provided in.
【0038】上記構成においてその動作を説明する。コ
ーヒー抽出の準備作業においては抽出室3を前記回転軸
を中心に回転させて本体1より引き出す。回り止め凸部
3dが第一の回り止め1dを乗り越えると第二の回り止
め1eとの間に上記回り止め3dが挟まれ、回転に対し
て抵抗となって抽出室3は仮止めされふらつかなくな
る。さらに第二の回り止め1eを乗り越えて回転させる
と上軸受け部1aに設けた切り欠き部1cと上回転軸3
aの根元に設けたストッパー3cの位置が合う。ここで
抽出室3を上方向に持ち上げると上回転軸3aの根元と
上軸受け部1aの間隔分だけ抽出室3が上へ移動する。
下回転軸3bはこの移動距離分よりわずかに短くなって
いるので下軸受け部1bから外れる。さらに抽出室3を
下方向に移動させれば上軸受け部1aから上回転軸3a
が抜けるので抽出室3は本体1より分離できる。しか
し、回り止め凸部3dが第二回り止め1eを過ぎる位置
までは切り欠き部1cと上回転軸3aの根元のストッパ
ー3cの位置が合っていないので抽出室3を上方向に持
ち上げても前記ストッパー3cが上軸受け部1aの周囲
に当たり抽出室3が上方向に移動できないので抽出室3
は外れることはない。The operation of the above configuration will be described. In the preparatory work for coffee extraction, the extraction chamber 3 is rotated about the rotation axis and pulled out from the main body 1. When the rotation preventing protrusion 3d gets over the first rotation preventing 1d, the rotation preventing 3d is sandwiched between the rotation preventing protrusion 3d and the second rotation preventing 1e, and becomes a resistance against the rotation, and the extraction chamber 3 is temporarily stopped and does not move. . Further, when the second rotation stopper 1e is passed over and rotated, the notch portion 1c provided in the upper bearing portion 1a and the upper rotation shaft 3 are rotated.
The position of the stopper 3c provided at the root of a is matched. Here, when the extraction chamber 3 is lifted upward, the extraction chamber 3 moves upward by the distance between the root of the upper rotation shaft 3a and the upper bearing 1a.
Since the lower rotating shaft 3b is slightly shorter than the moving distance, the lower rotating shaft 3b comes off the lower bearing 1b. When the extraction chamber 3 is further moved downward, the upper bearing 1a moves to the upper rotation shaft 3a.
, The extraction chamber 3 can be separated from the main body 1. However, the position of the notch 1c and the stopper 3c at the root of the upper rotation shaft 3a do not match until the position of the detent protrusion 3d passes the second detent 1e. Since the stopper 3c hits the periphery of the upper bearing portion 1a and the extraction chamber 3 cannot move upward, the extraction chamber 3
Never come off.
【0039】抽出室3内でのコーヒー液の泡は、主に次
の三つの要因で発生する。第一の要因はコーヒー粉内に
含まれる炭酸ガス等によるものであり、第二の要因はコ
ーヒー液に上方向から熱湯が落下しその衝撃によるもの
である。そして第三の要因は熱湯から放出される蒸気に
よって生成される泡である。The foam of the coffee liquid in the extraction chamber 3 is mainly generated by the following three factors. The first factor is due to carbon dioxide gas or the like contained in the coffee powder, and the second factor is due to the impact of hot water falling from above on the coffee liquid. The third factor is bubbles generated by steam released from hot water.
【0040】抽出室3で発生した泡は上方向に向かって
堆積していくが、この泡は上記抽出室蓋5の袋状に膨ら
んだ泡収容部5aに収容される。このとき抽出室3内の
空気や炭酸ガスは抽出室蓋5に設けた抜気穴5bから外
部に泡によって押し出されるとともに泡収容部5aの容
積いっぱいに泡を収容できる。The bubbles generated in the extraction chamber 3 accumulate in the upward direction. The bubbles are stored in the bag storage section 5a of the extraction chamber lid 5 which swells like a bag. At this time, the air and carbon dioxide gas in the extraction chamber 3 are pushed out to the outside by the bubbles from the air vent holes 5b provided in the extraction chamber lid 5, and the bubbles can be stored in the full volume of the bubble storage portion 5a.
【0041】また上記抽出室蓋5の中央は浄化ユニット
からの熱湯を受けるためにお碗状に窪んだ散水部5cが
あり、その中央に注湯筒5dが下方向に向かって伸びて
いてコーヒー粉の上面10ミリ前後にその下端を開口し
ている。浄化ユニット12を通過した熱湯はこの注湯筒
5dに導かれてコーヒー粉に注がれるので熱湯の落下に
よる衝撃が小さくなりコーヒー液面に熱湯が落下すると
きの泡立ちが少なくなる。The center of the extraction chamber lid 5 has a bowl-shaped water sprinkling section 5c for receiving hot water from the purification unit, and a pouring cylinder 5d extends downward at the center of the sprinkling cylinder 5d. The lower end is opened about 10 mm above the top surface of the powder. The hot water that has passed through the purification unit 12 is guided to the pouring cylinder 5d and poured into the coffee powder, so that the impact due to the drop of the hot water is reduced and the bubbling when the hot water falls on the coffee liquid surface is reduced.
【0042】さらに流路切替筐21の底部には蒸気抜き
穴21cが設けてあるので熱湯は抽出室3に入る前に一
度蒸気が抜気されるので抽出室3内のコーヒー粉に触れ
ても発生する泡の量は少なくなる。Further, since the steam vent hole 21c is provided at the bottom of the flow path switching casing 21, the steam is removed once before the hot water enters the extraction chamber 3, so that even if the hot water touches the coffee powder in the extraction chamber 3, The amount of foam generated is reduced.
【0043】そして、抽出室3内部と外部は抽出室3の
上端近くの全周に設けたU字状溝3hに抽出室蓋の外周
端が嵌合載置することによりシールされているので泡が
溢れない。The inside and outside of the extraction chamber 3 are sealed by fitting the outer peripheral end of the extraction chamber lid into a U-shaped groove 3h provided on the entire periphery near the upper end of the extraction chamber 3 so that bubbles are formed. Does not overflow.
【0044】また上記構成においては、貯水槽2内の水
はヒーター部4で70℃になるまで循環加熱されるがそ
の時には、貯水槽2内に蒸気が充満する。しかし、貯水
槽蓋24には排気口24aを設けてあり蒸気を排出する
ことにより貯水槽蓋24の裏面に結露することを防ぐこ
とができるので裏面の水滴が落下し周囲を濡らすことが
ない。Further, in the above configuration, the water in the water storage tank 2 is circulated and heated to 70 ° C. by the heater unit 4, at which time the water storage tank 2 is filled with steam. However, since the water outlet 24a is provided in the water tank lid 24 and the vapor is discharged to prevent condensation on the rear surface of the water tank lid 24, water drops on the rear surface do not fall and do not wet the surroundings.
【0045】抽出室3の構成は図6に示すように二重壁
構造でその上端及び下端近傍において二重壁間が外部に
開口している。コーヒーの抽出中や保温するときにコー
ヒー容器6の中央から立ち昇る蒸気は下開口部3gから
上開口部3fに抜けて散水カバー8の周囲の開口部8b
より空気中に飛散されるので本体1の抽出室3周囲に結
露することがない。さらに従来からの抽出室3内のコー
ヒーが冷めにくい利点を有しつつ、コーヒー抽出後の洗
浄においても二重壁間に侵入したコーヒー粉等が流れ出
やすく清潔を保てる利点もある。The structure of the extraction chamber 3 is a double wall structure as shown in FIG. 6, and the space between the double walls is open to the outside near the upper and lower ends thereof. The steam rising from the center of the coffee container 6 during the extraction of coffee or keeping the temperature passes from the lower opening 3g to the upper opening 3f, and the opening 8b around the sprinkling cover 8.
Since it is more scattered in the air, there is no dew condensation around the extraction chamber 3 of the main body 1. Further, there is an advantage that the coffee in the extraction chamber 3 is hardly cooled, and the coffee powder or the like that has invaded between the double walls easily flows out and is kept clean even in the washing after coffee extraction.
【0046】[0046]
【発明の効果】前記実施例の説明より明らかなように、
本発明のコーヒー抽出器は、準備作業における作業性を
改善し使い易いコーヒー抽出器を提供するとともに、貯
水槽内の水をコーヒー抽出に適した温度に循環加熱して
コーヒーの旨味だけを抽出する構成の発泡による溢れ、
および結露のないコーヒー抽出器を提供する。As is clear from the description of the above embodiment,
ADVANTAGE OF THE INVENTION The coffee extractor of this invention improves the workability | operativity in a preparation operation, provides an easy-to-use coffee extractor, and circulates and heats the water in a water storage tank to the temperature suitable for coffee extraction, and extracts only the taste of coffee. Overflow due to foaming of the composition,
And a coffee extractor without condensation.
【図1】本発明の一実施例のコーヒー抽出器の縦断面図FIG. 1 is a longitudinal sectional view of a coffee extractor according to one embodiment of the present invention.
【図2】同コーヒー抽出器の抽出室の上回転軸の部分詳
細図FIG. 2 is a partially detailed view of an upper rotating shaft of an extraction chamber of the coffee extractor.
【図3】同コーヒー抽出器の抽出室の下回転軸の部分詳
細図FIG. 3 is a partial detailed view of a lower rotation shaft of an extraction chamber of the coffee extractor.
【図4】同コーヒー抽出器の流路切替部の断面図FIG. 4 is a cross-sectional view of a flow path switching unit of the coffee extractor.
【図5】同コーヒー抽出器の浄化ユニット係止部の断面
図FIG. 5 is a sectional view of a purifying unit locking portion of the coffee extractor.
【図6】同コーヒー抽出器の抽出室の断面図FIG. 6 is a sectional view of an extraction chamber of the coffee extractor.
【図7】従来のコーヒー抽出器の縦断面図FIG. 7 is a longitudinal sectional view of a conventional coffee extractor.
【図8】同コーヒー抽出器の流路切替部の断面図FIG. 8 is a sectional view of a flow path switching unit of the coffee extractor.
【図9】同コーヒー抽出器の抽出室の斜視図FIG. 9 is a perspective view of an extraction chamber of the coffee extractor.
1 コーヒー抽出器本体 1a 上軸受け部 1b 下軸受け部 1c 切り欠き部 1d 第一の回り止め凸部 1e 第二の回り止め凸部 2 貯水槽 3 抽出室 3a 上回転軸 3b 下回転軸 3c ストッパー 3d 回り止め凸部 4 ヒーター部 5a 泡収容部 5b 抜気穴 5d 注湯筒 6 コーヒー容器 3h U字状溝 21c 蒸気抜き穴 24a 排気口 DESCRIPTION OF SYMBOLS 1 Coffee extractor main body 1a Upper bearing part 1b Lower bearing part 1c Notch part 1d First detent convex part 1e Second detent convex part 2 Reservoir 3 Extraction chamber 3a Upper rotating shaft 3b Lower rotating shaft 3c Stopper 3d Detents 4 Heater 5a Foam storage 5b Vent hole 5d Pouring cylinder 6 Coffee container 3h U-shaped groove 21c Steam vent 24a Exhaust port
───────────────────────────────────────────────────── フロントページの続き (72)発明者 広瀬 康次 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 昭61−164530(JP,A) 実開 昭62−39638(JP,U) 実開 昭64−43834(JP,U) 実開 昭63−68931(JP,U) (58)調査した分野(Int.Cl.7,DB名) A47J 31/057 A47J 31/44 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yasuji Hirose 1006 Kazuma Kadoma, Kadoma City, Osaka Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-61-164530 (JP, A) -39638 (JP, U) Fully open sho 64-43834 (JP, U) Fully open sho 63-68931 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) A47J 31/057 A47J 31/44
Claims (4)
出室とこの抽出室を覆う抽出室蓋と、貯水槽の底部より
逆止弁を介して導出された昇水管への通水を加熱するヒ
ーター部とを備え、前記抽出室は抽出室に設けた上回転
軸と下回転軸により本体に開閉自在かつ着脱自在である
とともに、本体の軸受け部周囲に設けた回り止め凸部
と、抽出室の回転軸部周囲に設けた回り止め凸部の係合
により前記抽出室を一定の開き角度で保持できるコーヒ
ー抽出器。1. A main body, a water storage tank, an extraction chamber for extracting coffee, an extraction chamber cover for covering the extraction chamber, and water flowing through a bottom pipe of the water storage tank through a check valve to a riser pipe. A heating unit for heating, and the extraction chamber is provided with an upper rotation in the extraction chamber.
With the body by a shaft and the lower rotation axis is freely opened and closed and removable, detent protrusions provided around the bearing portion of the main body
And the rotation-preventing projection provided around the rotation shaft of the extraction chamber.
A coffee extractor capable of holding the extraction chamber at a constant opening angle .
出室とこの抽出室を覆う抽出室蓋と、貯水槽の底部より
逆止弁を介して導出された昇水管への通水を加熱するヒ
ーター部とを備え、前記抽出室は抽出室に設けた上回転
軸と下回転軸により本体に開閉自在かつ着脱自在である
とともに、上方向に膨らんだ泡収容部を設け、その泡収
容部に抜気穴を設けた抽出室蓋を有するコーヒー抽出
器。2. A body, a water storage tank, and a coffee extracting machine.
From the exit room, the extraction room lid that covers this extraction room, and the bottom of the water storage tank
Heat that heats the water flow to the riser pipe led out through the check valve
The extraction chamber is provided in the extraction chamber.
The main body is freely openable and closable with the shaft and lower rotating shaft
At the same time, an upwardly swelling foam storage section is
A coffee extractor having an extraction chamber lid having a vent hole in a container.
出室とこの抽出室を覆う抽出室蓋と、貯水槽の底部より
逆止弁を介して導出された昇水管への通水を加熱するヒ
ーター部とを備え、前記抽出室は抽出室に設けた上回転
軸と下回転軸により本体に開閉自在かつ着脱自在である
とともに、抽出室の上端近傍全周にU字状溝を設けると
ともに、抽出室蓋をそのU字状溝に嵌合載置するコーヒ
ー抽出器。3. A main body, a water storage tank, and a coffee brewing machine.
From the exit room, the extraction room lid that covers this extraction room, and the bottom of the water storage tank
Heat that heats the water flow to the riser pipe led out through the check valve
The extraction chamber is provided in the extraction chamber.
The main body is freely openable and closable with the shaft and lower rotating shaft
In addition, when a U-shaped groove is provided on the entire periphery near the upper end of the extraction chamber,
Both are coffee extractors in which the extraction chamber lid is fitted and mounted in the U-shaped groove .
出室とこの抽出室を覆う抽出室蓋と、貯水槽の底部より
逆止弁を介して導出された昇水管への通水を加熱するヒ
ーター部と、昇水管の上端が接続された流路切替筐とを
備え、前記抽出室は抽出室に設けた上回転軸と下回転軸
により本体に開閉自在かつ着脱自在であるとともに、前
記流路切替筐の底部に蒸気抜き穴を設けたコーヒー抽出
器。4. A main body, a water storage tank, and a coffee extracting machine.
From the exit room, the extraction room lid that covers this extraction room, and the bottom of the water storage tank
Heat that heats the water flow to the riser pipe led out through the check valve
And the flow path switching casing to which the upper end of the riser pipe is connected.
The extraction chamber is provided with an upper rotation axis and a lower rotation axis provided in the extraction chamber.
It can be opened and closed and detachable from the main body by
A coffee extractor provided with a steam vent hole at the bottom of the channel switching case .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4274008A JP3031082B2 (en) | 1992-10-13 | 1992-10-13 | Coffee extractor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4274008A JP3031082B2 (en) | 1992-10-13 | 1992-10-13 | Coffee extractor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06121741A JPH06121741A (en) | 1994-05-06 |
JP3031082B2 true JP3031082B2 (en) | 2000-04-10 |
Family
ID=17535672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4274008A Expired - Fee Related JP3031082B2 (en) | 1992-10-13 | 1992-10-13 | Coffee extractor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3031082B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108236375B (en) * | 2018-02-22 | 2024-05-24 | 广州又一客网络技术有限公司 | Electrical appliance for preparing beverage |
-
1992
- 1992-10-13 JP JP4274008A patent/JP3031082B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH06121741A (en) | 1994-05-06 |
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