JP2011251026A - Mechanism for discharging steam - Google Patents

Mechanism for discharging steam Download PDF

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Publication number
JP2011251026A
JP2011251026A JP2010127461A JP2010127461A JP2011251026A JP 2011251026 A JP2011251026 A JP 2011251026A JP 2010127461 A JP2010127461 A JP 2010127461A JP 2010127461 A JP2010127461 A JP 2010127461A JP 2011251026 A JP2011251026 A JP 2011251026A
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Prior art keywords
steam
cam
stopper
milk tank
claw
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JP2010127461A
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Japanese (ja)
Inventor
Satoru Tanaka
了 田中
Yoshiyuki Okabe
良行 岡部
Takahiko Shirai
隆彦 白井
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Panasonic Corp
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Panasonic Corp
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Priority to JP2010127461A priority Critical patent/JP2011251026A/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/4485—Nozzles dispensing heated and foamed milk, i.e. milk is sucked from a milk container, heated and foamed inside the device, and subsequently dispensed from the nozzle

Abstract

PROBLEM TO BE SOLVED: To provide a mechanism for discharging steam, in which a milk tank is safely attached and detached in an inexpensive configuration.SOLUTION: The mechanism for discharging steam includes: a cam 8 provided on a steam open/close shaft 3 that opens and closes a steam path (not shown in Fig); a projection 11 provided on the cam 8; and a freely turnable link 9 whose one end abuts on the projection 11 for regulating the turn of the cum 8, and whose other end pivotally supports a stopper 17. The stopper 17 has a projection 23 that abuts on a projection 21 of a milk tank 20, and a claw 22 that latches together with the projection 21. The stopper 17 is provided with a guide 24 for guiding the stopper 17, and allowing the claw 22 to go up when the stopper 17 moves forward. When the milk tank 20 is not mounted thereon, the rotation of the cam 8 is restricted so as not to permit steam to be discharged. When the milk tank 20 is mounted thereon, the cam 8 turns so as to allow steam to be discharged. When steam is being discharged, the movement of the link 9 is restricted, and the claw 22 and the protrusion 21 latch together so as not to permit the milk tank 20 to be taken out. When the cam 8 is turned to stop steam, the claw 22 goes up to permit the mil tank to be taken put.

Description

本発明は、エスプレッソコーヒーメーカーなどに使用される蒸気吐出機構に関するもので、特に、フォームドミルクを生成するための蒸気吐出の際の安全機構に関するものである。   The present invention relates to a steam discharge mechanism used in an espresso coffee maker, and more particularly to a safety mechanism at the time of steam discharge for producing foamed milk.

従来、この種の蒸気吐出機構は、ミルクタンクをセットしたときにマイクロＳＷで検知し、蒸気通路を開閉することによって行われるようになっていた（例えば、特許文献１参照）。   Conventionally, this type of steam discharge mechanism is detected by micro SW when a milk tank is set, and is performed by opening and closing a steam passage (see, for example, Patent Document 1).

図６は、上記特許文献１に記載された従来の蒸気吐出機構を示すものである。図６に示すように、従来の蒸気吐出機構は、ミルクタンク４１内に手動レバー４２と、これと係合する係止レバー４３と、機体内に係止レバー４３の他端を検知するマイクロＳＷ４４とこのマイクロＳＷ４４の信号により開閉する電磁弁から構成されている。   FIG. 6 shows a conventional steam discharge mechanism described in Patent Document 1. As shown in FIG. 6, the conventional steam discharge mechanism includes a manual lever 42 in the milk tank 41, a locking lever 43 that engages with the manual lever 42, and a micro SW 44 that detects the other end of the locking lever 43 in the body. And an electromagnetic valve that opens and closes in response to a signal from the micro SW 44.

特表２００７−５３３３８２号公報Special table 2007-533382 gazette

しかしながら、前記従来の蒸気吐出機構の構成では、電気信号を検知することにより電磁弁４５の開閉を行っているため、誤検知を起こす可能性があり、また、電磁弁４５は高価であるという課題を有していた。   However, in the configuration of the conventional steam discharge mechanism, since the electromagnetic valve 45 is opened and closed by detecting an electric signal, there is a possibility of erroneous detection, and the electromagnetic valve 45 is expensive. Had.

本発明は、前記従来の課題を解決するもので、安価なリンク機構により、ミルクタンク未装着時には、機構的に蒸気の吐出を防止することができる蒸気吐出機構を提供することを目的とする。   SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a steam discharge mechanism that can prevent steam from being discharged mechanically when a milk tank is not installed by an inexpensive link mechanism.

前記従来の課題を解決するために、本発明の蒸気吐出機構は、蒸気通路を開閉する蒸気開閉軸に設けられたカムと、前記カムの円周方向に設けられた凸部と、一端が前記凸部に当接して前記カムの回転を規制し、他端にストッパーを軸支した回動自在なリンクとを備え、前記ストッパーは、ミルクタンクに設けた突設部と当接する突起部と、前記突設部と係止する爪部を有し、前記ストッパーを案内すると共に前記ストッパーが前方向に移動したときに前記爪部が上がるように前記ストッパーを回動させるガイドを備えたもので、ミルクタンク未装着時は、カムの回転が規制されて蒸気が吐出せず、ミルクタンク装着時は、カムが回転し蒸気が吐出可能となり、蒸気吐出時は、リンクがカムの凸部に当接するためリンクの動作が規制され、ストッパーの爪部がミルクタンクの突設部に係止するためミルクタンクを外すことができない。また、カムを回転させて蒸気を止めると、リンクの規制が外れてストッパーが前方向に移動し、爪部が上がってミルクタンクを外すことができる。   In order to solve the above-described conventional problems, the steam discharge mechanism of the present invention includes a cam provided on a steam opening / closing shaft that opens and closes a steam passage, a convex portion provided in a circumferential direction of the cam, and one end of the cam A rotation link that abuts against a convex portion to restrict rotation of the cam and pivotally supports a stopper at the other end, and the stopper is a protrusion that abuts against a protrusion provided on the milk tank; It has a claw part that engages with the projecting part, and includes a guide that guides the stopper and rotates the stopper so that the claw part rises when the stopper moves forward, When the milk tank is not installed, the rotation of the cam is restricted so that steam is not discharged.When the milk tank is installed, the cam rotates and steam can be discharged. When steam is discharged, the link contacts the convex part of the cam. Therefore, link operation is restricted and The claw portion of the wrapper can not remove the milk tank for locking the projecting part of the milk tank. Also, when the steam is stopped by rotating the cam, the restriction of the link is removed, the stopper moves forward, the claw portion is raised, and the milk tank can be removed.

本発明の蒸気吐出機構は、ミルクタンク未装着時には蒸気の吐出を防止することが安価で確実にできる。   The steam discharge mechanism of the present invention can reliably and reliably prevent steam discharge when the milk tank is not installed.

本発明の実施の形態１における蒸気吐出機構の蒸気吐出時の側面図The side view at the time of the steam discharge of the steam discharge mechanism in Embodiment 1 of this invention 同蒸気吐出機構の待機時の側面図Side view of the steam discharge mechanism during standby 同蒸気吐出機構のストッパー部詳細図Detailed view of the stopper of the steam discharge mechanism 同蒸気吐出機構の蒸気吐出開閉部の蒸気吐出時の断面図Sectional view at the time of steam discharge of the steam discharge opening and closing part of the same steam discharge mechanism 同蒸気吐出機構の蒸気吐出開閉部の待機時の断面図Sectional view during standby of the steam discharge opening and closing part of the same steam discharge mechanism 従来の蒸気吐出機構の側面図Side view of conventional steam discharge mechanism

第１の発明は、蒸気通路を開閉する蒸気開閉軸に設けられたカムと、前記カムの円周方向に設けられた凸部と、一端が前記凸部に当接して前記カムの回転を規制し、他端にストッパーを軸支した回動自在なリンクとを備え、前記ストッパーは、ミルクタンクに設けた突設部と当接する突起部と、前記突設部と係止する爪部を有し、前記ストッパーを案内すると共に前記ストッパーが前方向に移動したときに前記爪部が上がるように前記ストッパーを回動させるガイドを備えたもので、ミルクタンク未装着時は、カムの回転が規制されて蒸気が吐出せず、ミルクタンク装着時は、カムが回転し蒸気が吐出可能となり、蒸気吐出時は、リンクがカムの凸部に当接するためリンクの動作が規制され、ストッパーの爪部がミルクタンクの突設部に係止するためミルクタンクを外すことができない。また、カムを回転させて蒸気を止めると、リンクの規制が外れてストッパーが前方向に移動し、爪部が上がってミルクタンクを外すことができる。   1st invention controls the rotation of the said cam which the cam provided in the steam opening-and-closing axis | shaft which opens and closes a steam channel | path, the convex part provided in the circumferential direction of the said cam, and one end contact | abuts to the said convex part And a rotatable link having a stopper pivotally supported at the other end, the stopper having a protrusion that contacts the protrusion provided on the milk tank and a claw that engages with the protrusion. And a guide for rotating the stopper so that the pawl is raised when the stopper moves forward, and the rotation of the cam is restricted when the milk tank is not installed. When the milk tank is installed, the cam rotates and the steam can be discharged.When the steam is discharged, the link is in contact with the convex part of the cam, and the movement of the link is restricted. Locked to the protruding part of the milk tank It is not possible to remove the order milk tank. Also, when the steam is stopped by rotating the cam, the restriction of the link is removed, the stopper moves forward, the claw portion is raised, and the milk tank can be removed.

第２の発明は、特に、第１の発明のカムの動作を検知する検知手段を設け、前記カムの動作後一定時間経過すると、蒸気を発生させるボイラーの温度を下げるもので、ボイラーの空焚きを防止することができる。   In particular, the second invention is provided with detecting means for detecting the operation of the cam of the first invention, and lowers the temperature of the boiler that generates steam when a certain time has elapsed after the operation of the cam. Can be prevented.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

（実施の形態１）
図１は、本発明の実施の形態１における蒸気吐出機構の待機時の側面図、図２は、同蒸気吐出機構の蒸気吐出時の側面図、図３は、同蒸気吐出機構のストッパー部詳細図、図４は、同蒸気吐出機構の蒸気吐出開閉部の蒸気吐出時の断面図、図５は、同蒸気吐出機構の蒸気吐出開閉部の待機時の断面図である。 (Embodiment 1)
1 is a side view of the steam discharge mechanism in standby mode according to the first embodiment of the present invention, FIG. 2 is a side view of the steam discharge mechanism during steam discharge, and FIG. 3 is a detail of a stopper portion of the steam discharge mechanism. FIG. 4 is a cross-sectional view of the steam discharge opening / closing section of the steam discharge mechanism during steam discharge, and FIG. 5 is a cross-sectional view of the steam discharge opening / closing section of the steam discharge mechanism during standby.

図１〜５において、ボイラー１上面に蒸気導入パイプ２を備え、蒸気導入パイプ２は、蒸気開閉軸３と嵌合するネジ部４と、蒸気開閉軸３の先端と当接するテーパー部５と、蒸気吐出ノズル６よりなる。蒸気開閉軸３には、Ｏリング７が嵌合され、蒸気開閉軸３には、カム８が嵌合されている。   1 to 5, a steam introduction pipe 2 is provided on the upper surface of the boiler 1, and the steam introduction pipe 2 includes a screw portion 4 that is fitted to the steam opening / closing shaft 3, a tapered portion 5 that is in contact with the tip of the steam opening / closing shaft 3, It consists of a steam discharge nozzle 6. An O-ring 7 is fitted to the steam opening / closing shaft 3, and a cam 8 is fitted to the steam opening / closing shaft 3.

カム８の外周に、リンク９の先端部１０と当接する凸部１１と凹部１２を備え、蒸気閉時は、凸部１１が押圧し、蒸気吐出時は、凹部１２にて開放される位置に検知手段１３が設けられている。   The outer periphery of the cam 8 is provided with a convex portion 11 and a concave portion 12 that come into contact with the tip portion 10 of the link 9. The convex portion 11 is pressed when the steam is closed, and is opened at the concave portion 12 when steam is discharged. Detection means 13 is provided.

リンク９は、軸１４により回動自在に軸支され、引っ張りバネ１５の付勢力によりカム８側に引っ張られている。また、他端には軸ピン１６が設けられている。   The link 9 is pivotally supported by a shaft 14 and is pulled toward the cam 8 by an urging force of a tension spring 15. A shaft pin 16 is provided at the other end.

ストッパー１７は、軸ピン１６に回動自在に軸支され、その先端突起部１８を押圧するように捻りバネ１９が軸ピン１６に装着されている。ストッパー１７は、ミルクタンク２０の上面に設けられた突設部２１の背面と当接する爪部２２と、突設部２１の前面と当接する突起部２３を構成する。   The stopper 17 is pivotally supported by the shaft pin 16, and a torsion spring 19 is attached to the shaft pin 16 so as to press the tip projection 18. The stopper 17 constitutes a claw portion 22 that comes into contact with the back surface of the protruding portion 21 provided on the upper surface of the milk tank 20 and a projection portion 23 that comes into contact with the front surface of the protruding portion 21.

ガイド２４は、ストッパー１７の先端突起部１８を水平方向に案内する平面部２５と、リンク９がカム８の凹部１２に入り込んだときに、ストッパー１７の爪部２２を持ち上げるように案内する傾斜部２６より構成されている。   The guide 24 includes a flat portion 25 that guides the tip protrusion 18 of the stopper 17 in the horizontal direction, and an inclined portion that guides the claw portion 22 of the stopper 17 when the link 9 enters the recess 12 of the cam 8. 26.

また、検知手段１３が動作し、一定時間が過ぎるとボイラー１の温度を下げる信号を送る制御部（図示せず）を有する。   Moreover, the detection means 13 operates, and has a control part (not shown) which sends the signal which lowers the temperature of the boiler 1 when a fixed time passes.

蒸気排出ノズル２７は、蒸気吐出ノズル６とチューブ２８により連結されている。また、ミルクタンク２０の両サイドにはリブ２９が設けられ、ガイド板３０により蒸気入口３１を蒸気排出ノズル２７に嵌合するよう案内する。   The steam discharge nozzle 27 is connected to the steam discharge nozzle 6 by a tube 28. Further, ribs 29 are provided on both sides of the milk tank 20, and the steam inlet 31 is guided by the guide plate 30 so as to be fitted to the steam discharge nozzle 27.

以上のように構成された本実施の形態における蒸気吐出機構について、以下その動作、作用を説明する。   The operation and action of the steam discharge mechanism in the present embodiment configured as described above will be described below.

ミルクタンク２０のリブ２９を、ガイド板３０に嵌合させて挿入すると、ミルクタンク２０の突設部２１の前面が、ストッパー１７の突起部２３を押し、リンク９が回動し、カム８の凸部１１より外れ、カム８が回転できるようになる。このときストッパー１７の爪部２２は、ガイド２４の傾斜部２６に案内されて、ミルクタンク２０の突設部２１の背面に降りてくる。   When the rib 29 of the milk tank 20 is inserted by being fitted to the guide plate 30, the front surface of the protruding portion 21 of the milk tank 20 pushes the protruding portion 23 of the stopper 17, the link 9 rotates, and the cam 8 The cam 8 can be rotated by coming off the convex portion 11. At this time, the claw portion 22 of the stopper 17 is guided by the inclined portion 26 of the guide 24 and descends to the back surface of the protruding portion 21 of the milk tank 20.

カム８を回転すると、蒸気開閉軸３が蒸気導入パイプ２を開放し、蒸気が、蒸気吐出部６より吐出する。このとき、ミルクタンク２０を引き出そうとすると、リンク９は、カム８の凸部１１と当接するために、ミルクタンク２０の突設部２１がストッパー１７の爪部２２と当接して引き出すことができない。   When the cam 8 is rotated, the steam opening / closing shaft 3 opens the steam introduction pipe 2, and steam is discharged from the steam discharge unit 6. At this time, when trying to pull out the milk tank 20, the link 9 comes into contact with the convex portion 11 of the cam 8, so that the protruding portion 21 of the milk tank 20 comes into contact with the claw portion 22 of the stopper 17 and cannot be pulled out. .

また、蒸気を出し続けて、ボイラー１内の湯が減って空焚きとなるのを防止するため、カム８の動作を検知手段１３が検知し、一定時間が経過するとボイラーの温度を下げる。   Further, in order to prevent the steam from continuing to be discharged and the hot water in the boiler 1 from decreasing and becoming empty, the detecting means 13 detects the operation of the cam 8, and the temperature of the boiler is lowered after a certain period of time.

そして、カム８を逆回転させて蒸気を止めると、リンク９が開放されるため、ミルクタンク２０を引き出すと、ストッパー１７の爪部２２が、ガイド２４の傾斜部２６に沿って上昇し、ミルクタンク２０の突設部２１が開放され、ミルクタンク２０を引き出すことができる。   When the steam is stopped by rotating the cam 8 in the reverse direction, the link 9 is opened. Therefore, when the milk tank 20 is pulled out, the claw portion 22 of the stopper 17 rises along the inclined portion 26 of the guide 24, and the milk The protruding portion 21 of the tank 20 is opened, and the milk tank 20 can be pulled out.

以上のように、本実施の形態においては、待機状態では、カム８の動作がリンク９により規制されているため、誤って蒸気を吐出させることはない。また、蒸気発生中は、ストッパー１７により規制されているため、誤ってミルクタンク２０を引き出すことはできない。   As described above, in the present embodiment, in the standby state, the operation of the cam 8 is restricted by the link 9, so that no steam is accidentally discharged. Further, during steam generation, the milk tank 20 cannot be pulled out by mistake because it is regulated by the stopper 17.

また、蒸気発生時間を検知手段１３により検知することができるため、ボイラー１が空焚きとなることを防止できる。   Moreover, since the steam generation time can be detected by the detection means 13, it is possible to prevent the boiler 1 from becoming empty.

以上のように、本発明にかかる蒸気吐出機構は、対象物をセット中以外は蒸気等の危険物質を吐出することができないため、安全装置としていろいろな産業機器に利用が可能である。   As described above, since the steam discharge mechanism according to the present invention cannot discharge dangerous substances such as steam except when the object is being set, it can be used for various industrial equipment as a safety device.

３ 蒸気開閉軸
８ カム
９ リンク
１１ 凸部
１３ 検知手段
１６ 軸ピン
１７ ストッパー
２０ ミルクタンク
２１ 突設部
２２ 爪部
２３ 突起部
２４ ガイド DESCRIPTION OF SYMBOLS 3 Steam opening / closing shaft 8 Cam 9 Link 11 Protruding part 13 Detection means 16 Shaft pin 17 Stopper 20 Milk tank 21 Projection part 22 Claw part 23 Projection part 24 Guide

Claims (2)

蒸気通路を開閉する蒸気開閉軸に設けられたカムと、前記カムの円周方向に設けられた凸部と、一端が前記凸部に当接して前記カムの回転を規制し、他端にストッパーを軸支した回動自在なリンクとを備え、前記ストッパーは、ミルクタンクに設けた突設部と当接する突起部と、前記突設部と係止する爪部を有し、前記ストッパーを案内すると共に前記ストッパーが前方向に移動したときに前記爪部が上がるように前記ストッパーを回動させるガイドを備えた蒸気吐出機構。 A cam provided on a steam opening / closing shaft for opening and closing the steam passage, a convex portion provided in a circumferential direction of the cam, one end abutting against the convex portion to restrict rotation of the cam, and a stopper at the other end The stopper has a protrusion that contacts the protrusion provided on the milk tank, and a claw that engages with the protrusion, and guides the stopper. And a steam discharge mechanism provided with a guide for rotating the stopper so that the claw is raised when the stopper is moved forward. カムの動作を検知する検知手段を設け、前記カムの動作後一定時間経過すると、蒸気を発生させるボイラーの温度を下げることを特徴とする請求項１に記載の蒸気吐出機構。 2. The steam discharge mechanism according to claim 1, further comprising a detection unit configured to detect a cam operation, and lowering a temperature of a boiler that generates steam when a predetermined time has elapsed after the cam operation.
JP2010127461A 2010-06-03 2010-06-03 Mechanism for discharging steam Ceased JP2011251026A (en)

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