JPH0670542B2 - Deicing structure of automatic ice machine - Google Patents

Description

【発明の詳細な説明】 産業上の利用分野 この発明は、固定側の第１製氷室とこれに対し傾動自在
な可動側の第２製氷室とを備え、両製氷室の間に画成さ
れる空間内で球状氷等の異形氷を製造する自動製氷機に
おいて、その除氷運転に際し、氷塊の割れや欠けが生ず
るのを有効に防止して、良質の氷塊を製造し得るように
した除氷構造に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention includes a first ice-making chamber on the fixed side and a second ice-making chamber on the movable side that is tiltable with respect to the first ice-making chamber, and is defined between both ice-making chambers. In an automatic ice-making machine that produces irregularly shaped ice such as spherical ice in a space where the ice cubes are removed, the ice blocks are effectively prevented from cracking or chipping during the deicing operation. It concerns ice structures.

従来技術 各種の産業分野で、立方体状の角氷や所要厚みの板氷そ
の他フレーク状の氷片等を大量に連続製造する自動製氷
機が、各種用途に応じて好適に使い分けられている。し
かるに最近の喫茶店やレストラン等の飲食施設では、同
種営業に対し種々の面で優位に立って顧客を吸引するべ
く、他社との差別化を図る懸命な努力が払われている。
その一環として、広く普及している角氷の使用に代わ
り、ボール状（球体状）の氷塊を使用して、顧客に興趣
に富んだサービスを提供する試みがなされている。2. Description of the Related Art In various industrial fields, an automatic ice-making machine for continuously producing a large amount of cube-shaped ice cubes, plate ice having a required thickness and other flaky ice pieces is properly used according to various applications. However, in recent eating and drinking establishments such as coffee shops and restaurants, various efforts are being made to differentiate themselves from other companies in order to gain an advantage in attracting customers with various advantages over similar businesses.
As part of such efforts, attempts have been made to provide customers with interesting services by using ball-shaped (spherical) ice blocks instead of the widely used ice cubes.

そこで出願人は、このような動向に鑑み、透明な異形氷
を大量に製造し得る製氷機を新たに開発し、その基本構
造につき昭和63年１月29日付けで「自動製氷機」として
特許出願（特開平２−176380号公報参照）を行なった。
本発明は、この種の自動製氷機における除氷構造に関連
して新たに提案されるものであるので、該提案の詳細説
明に先立ち、前記製氷機の基本構造につき説明する。Therefore, in view of such trends, the applicant newly developed an ice making machine capable of producing a large amount of transparent irregularly shaped ice, and patented its basic structure as an "automatic ice making machine" on January 29, 1988. An application (see JP-A-2-176380) was filed.
Since the present invention is newly proposed in relation to the deicing structure in this type of automatic ice making machine, the basic structure of the ice making machine will be described before the detailed description of the proposal.

第19図は、異形氷を製造する自動製氷機の縦断側面を示
し、その製氷室10は、機内上方に水平に固定され、熱良
導性金属からなる第１製氷室11と、この第１製氷室11を
下方から傾動開閉可能な、熱良導性金属からなる第２製
氷室12とから構成されている。第１製氷室11には、下向
きに開口する例えば半球状凹部からなる第１製氷小室13
が、所要の整列パターンで多数凹設されると共に、その
上面に冷凍系（図示せず）に接続する蒸発器14が蛇行配
置されている。FIG. 19 shows a vertical side surface of an automatic ice making machine for producing irregularly shaped ice. The ice making chamber 10 is horizontally fixed above the inside of the first ice making chamber 11 made of heat conductive metal, and the first ice making chamber 11. The second ice making chamber 12 is made of a heat conductive metal and can be opened and closed by tilting the ice making chamber 11 from below. In the first ice making chamber 11, for example, a first ice making small chamber 13 formed of a hemispherical concave portion that opens downward
However, a large number of recesses are formed in a required alignment pattern, and an evaporator 14 connected to a refrigeration system (not shown) is arranged in a meandering manner on the upper surface thereof.

第２製氷室12は、第１製氷室11の直下に、軸16を中心と
して傾動自在に枢支され、その上面に半球状凹部からな
る第２製氷小室15が、上向きに所要の整列パターンで多
数凹設されている。The second ice making chamber 12 is pivotally supported right below the first ice making chamber 11 so as to be tiltable about a shaft 16, and a second ice making small chamber 15 composed of a hemispherical concave portion is provided on the upper surface thereof in a predetermined alignment pattern. Many are recessed.

そして製氷運転時には、第19図に示す如く、第２製氷
室12はアクチュエータ（図示せず）により付勢されて第
１製氷室11を下方から閉成し、両小室13,15間に球形の
製氷空間を画成する。また除氷運転時には、第20図に
示す如く、第２製氷室12は斜め下方に傾動して、第１製
氷室11を開放するようになっている。During the ice making operation, the second ice making chamber 12 is biased by an actuator (not shown) to close the first ice making chamber 11 from below as shown in FIG. Define an ice making space. Further, during the deicing operation, as shown in FIG. 20, the second ice making chamber 12 is tilted obliquely downward to open the first ice making chamber 11.

第２製氷室12の外底部には、両製氷室13,15に製氷水を
供給するための水皿19が固定されている。また、第２製
氷室12における第２製氷小室15の形成面と反対側の面
（水皿19と対向する面）には、相互に隣接する各第２製
氷小室15の間に溝通路17が形成されている。更に水皿19
の表面に、一対の側部20（一方のみ図示する），堰止め
部21および後部22で囲繞された水溜部23が形成され、該
水溜部23内に第２製氷室12が臨んでいる。すなわち、除
氷運転に際し、外部水道系に連通する給水管18から水溜
部23に供給された水は、第19図に示す如く、前記第２製
氷室12の周面に画成した溝通路17中に充満し、その水温
により各第２製氷小室15を温度上昇させ、製氷運転時に
生じた第２製氷小室15と球状氷33との氷結を解除し得る
ものである。従って、水皿19および第２製氷室12を傾動
させれば、第２製氷室12は第１製氷室11から強制剥離さ
れる。A water tray 19 for supplying ice making water to both ice making chambers 13 and 15 is fixed to the outer bottom of the second ice making chamber 12. A groove passage 17 is provided between the second ice making chambers 15 adjacent to each other on the surface of the second ice making chamber 12 opposite to the surface on which the second ice making chambers 15 are formed (the surface facing the water tray 19). Has been formed. Further water tray 19
A water reservoir 23 surrounded by a pair of side portions 20 (only one of which is shown), a dam portion 21 and a rear portion 22 is formed on the surface of the above, and the second ice making chamber 12 faces the inside of the water reservoir 23. That is, in the deicing operation, the water supplied from the water supply pipe 18 communicating with the external water supply system to the water reservoir 23 is, as shown in FIG. 19, a groove passage 17 defined on the peripheral surface of the second ice making chamber 12. The second ice-making small chambers 15 are filled with the water, and the temperature of the second ice-making small chambers 15 is raised by the water temperature, so that the freezing between the second ice-making small chambers 15 and the spherical ice 33 generated during the ice-making operation can be released. Therefore, if the water tray 19 and the second ice making chamber 12 are tilted, the second ice making chamber 12 is forcibly separated from the first ice making chamber 11.

この場合であっても、製氷運転時に生じた第１製氷小室
13の内壁と球状氷33との氷結は依然維持されているの
で、球状氷33は第１製氷小室13に固着している（第20図
参照）。そこで、所要のタイミングで冷凍系における弁
を切換え、前記蒸発器14にホットガスを流通させれば、
第１製氷小室13と球状氷33との氷結が解除され、該球状
氷33は自重により後述する氷案内板31を介して貯氷庫
（図示せず）に落下貯蔵される。Even in this case, the first ice making chamber created during the ice making operation
Since the freezing between the inner wall of 13 and the spherical ice 33 is still maintained, the spherical ice 33 is fixed to the first ice making chamber 13 (see FIG. 20). Therefore, if the valve in the refrigeration system is switched at a required timing and hot gas is circulated in the evaporator 14,
The freezing of the first ice making chamber 13 and the spherical ice 33 is released, and the spherical ice 33 is dropped and stored in an ice storage (not shown) via an ice guide plate 31 described later by its own weight.

水皿19には、各第２製氷小室15と対応する部位に噴水孔
25が穿設され、この噴水孔25は、第２製氷小室15の底部
に穿設した所要直径の通孔12aに臨むようになってい
る。また水皿19の外底部に、製氷水供給路として機能す
る分配管24が蛇行配置され、この分配管24は前記噴水孔
25の夫々と対応的に連通している。更に水皿19の下方に
製氷水タンク34が一体的に設けられ、分配管24は該タン
ク34に圧力室27を介して連通している。そしてタンク34
中の製氷水は、製氷運転に際しポンプ28により圧力室27
および分配管24を圧送され、噴水孔25を介して両製氷小
室13,15に噴射供給される。The water tray 19 has a fountain hole at a portion corresponding to each second ice making chamber 15.
25 is bored, and the fountain hole 25 faces the through hole 12a having a required diameter bored in the bottom portion of the second ice making small chamber 15. Further, a distribution pipe 24 functioning as an ice making water supply passage is arranged in a meandering manner on the outer bottom portion of the water tray 19, and the distribution pipe 24 is the fountain hole.
Correspondingly communicates with each of the 25. Further, an ice making water tank 34 is integrally provided below the water tray 19, and the distribution pipe 24 communicates with the tank 34 via a pressure chamber 27. And tank 34
The ice-making water in the pressure chamber 27
And the distribution pipe 24 is pressure-fed, and is spray-supplied to both ice making small chambers 13 and 15 through the fountain hole 25.

なお水皿19には、夫々の噴水孔25を挟んで２つの戻り孔
（図示せず）が、第２製氷小室15の画成数に対応して穿
設されている。これらの戻り孔も前記通孔12aに望み、
製氷運転に際し両製氷小室13,15中で氷結するに到らな
かった製氷水（以下「未氷結水」という）を、タンク34
に向け排出するべく機能する。Two return holes (not shown) are formed in the water tray 19 so as to sandwich the respective fountain holes 25 in correspondence with the number of the second ice making chambers 15 defined. These return holes are also desired for the through holes 12a,
During the ice making operation, the ice making water that did not reach the freezing in both the ice making chambers 13 and 15 (hereinafter referred to as “non-freezing water”) is stored in the tank 34.
Function to discharge toward.

製氷水タンク34の下方には、製氷後に残留する水を機外
へ排出する排水皿29が配設され、該排水皿29の前方でか
つ水平姿勢にある第２製氷室12の斜め下方に、軸30を介
して氷案内板31が枢支されている。この氷案内板31は、
前記水皿19の横幅寸法より僅かに短かく設定した横幅寸
法を有すると共に、第２製氷室12の上面全体を覆い得る
縦寸法に設定されている。そして製氷運転時には、氷
案内板31はその上端部が筐体の縦側板32に当接して位置
決めされ、この状態において、水皿19に供給される除氷
水が堰止め部21からオーバーフローすると、この除氷水
は氷案内板31の裏面に沿って流下した後、前記排水皿29
から機外へ排出される（第19図参照）。また、除氷運
転時には、氷案内板31は傾め下方に位置している第２製
氷室12の上面に倒れ込み、上方に開放する第２製氷小室
15を塞いで、第１製氷室11から落下する球状氷33を、下
方に位置する貯氷庫（図示せず）へ円滑に案内する（第
20図参照）。Below the ice making water tank 34, a drain tray 29 for discharging the water remaining after ice making to the outside of the machine is disposed, and in front of the drain tray 29 and diagonally below the second ice making chamber 12 in a horizontal position, An ice guide plate 31 is pivotally supported via a shaft 30. This ice guide plate 31,
The width of the water tray 19 is set to be slightly shorter than the width of the water tray 19, and the vertical dimension is set to cover the entire upper surface of the second ice making chamber 12. Then, during the ice making operation, the ice guide plate 31 is positioned with its upper end contacting the vertical side plate 32 of the housing, and in this state, when the deicing water supplied to the water tray 19 overflows from the dam portion 21, After deicing water flows down along the back surface of the ice guide plate 31, the drain tray 29
Is discharged from the machine (see Fig. 19). Further, during the deicing operation, the ice guide plate 31 tilts and falls down on the upper surface of the second ice making chamber 12 located below, and the second ice making small chamber is opened upward.
Blocking 15 allows the spherical ice 33 falling from the first ice making chamber 11 to be smoothly guided to an ice storage (not shown) located below (first
(See Figure 20).

発明が解決しようとする課題 前述した自動製氷機では、第１製氷室11および第２製氷
室12は、何れも銅等の熱良導性金属を材質とし、その表
面に錫メッキしたものが使用されている。このため、製
氷運転により両製氷小室13,15の内部に形成された球状
氷33は、各小室内壁に強固に氷結するに到っている。従
って、このような状態で除氷のため第２製氷室12を傾動
させると、第２製氷室12やその傾動機構（アクチュエー
タ等）に過大な負荷が加わり、球状氷33も良好な状態で
は取出せない等の問題がある。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above-mentioned automatic ice making machine, the first ice making chamber 11 and the second ice making chamber 12 are both made of a heat conductive metal such as copper, and the surface thereof is tin-plated. Has been done. For this reason, the spherical ice 33 formed inside the ice making small chambers 13 and 15 by the ice making operation is firmly frozen to the walls of each small chamber. Therefore, if the second ice making chamber 12 is tilted for deicing in such a state, an excessive load is applied to the second ice making chamber 12 and its tilting mechanism (actuator, etc.), and the spherical ice 33 cannot be taken out in a good state. There is a problem such as not.

そこで、前述した如く除氷運転に際し、先ず第２製氷小
室15と球状氷33との氷結を解除するべく、外部から常温
の水道水を水皿表面に供給し、この水道水を各第２製氷
小室15の周囲に画成した溝通路17に充満させる方式が本
件出願人により提案された。すなわち、第２製氷室12は
熱良導材料から構成されているので、該第２製氷室12は
常温の水道水により迅速に温度上昇して、各第２製氷小
室15と球状氷33との氷結を速やかに解除することができ
る。Therefore, in the deicing operation as described above, first, tap water at room temperature is externally supplied to the surface of the water tray to release the freezing of the second ice making chamber 15 and the spherical ice 33, and the tap water is supplied to each second ice making unit. The applicant of the present invention has proposed a method of filling the groove passage 17 defined around the small chamber 15. That is, since the second ice making chamber 12 is made of a heat conductive material, the temperature of the second ice making chamber 12 is rapidly raised by the tap water at room temperature, so that the second ice making chambers 15 and the spherical ice 33 are separated from each other. Freezing can be quickly released.

しかしここで問題となるのは、製氷運転の完了時点で、
第２製氷室12に開孔している各通孔12aを介して、水皿
表面に球状氷33の下端部が強固に氷結していることであ
る。水皿19は、一般に熱不良導材料であるABS樹脂等の
合成樹脂を材質としているので、前記溝通路17を通過す
る水道水で、前述した球状氷33の下端部と水皿19との氷
結を解除するには時間が掛かる。このため殆どの場合、
水皿19と球状氷33との氷結が完全に解除される前に、第
２製氷室12を傾動させることとなり、第20図に示す如
く、球状氷33の下端が割れたり欠けてしまう欠点があっ
た。However, the problem here is when the ice making operation is completed,
That is, the lower end portion of the spherical ice 33 is firmly frozen to the surface of the water tray through each of the through holes 12a formed in the second ice making chamber 12. Since the water tray 19 is generally made of a synthetic resin such as ABS resin which is a poor heat conducting material, the tap water passing through the groove passage 17 is used to freeze the lower end of the spherical ice 33 and the water tray 19. It takes time to cancel. So in most cases,
Before the freezing of the water tray 19 and the spherical ice 33 is completely released, the second ice making chamber 12 is tilted, and as shown in FIG. 20, there is a drawback that the lower end of the spherical ice 33 is cracked or chipped. there were.

加えて傾動し終えた第２製氷室12には、前記通孔12a内
に球状氷33から剥離した氷片が残留付着して、該氷片が
水皿19における噴水孔25および戻り孔を塞いでしまうこ
ととなる。この場合において、次回の製氷運転に際し、
夏場のように水道水の温度が高い時期には、噴水孔25か
ら噴射される製氷水により氷片を早期に融解させて、該
製氷水を前記製氷空間へ供給し得る。しかし、冬場のよ
うに水道水の温度がかなり低下する時期には、製氷水で
前記氷片を融解することが困難で、場合によっては製氷
空間に製氷水を供給し得なくなる重大な問題を招来す
る。In addition, in the second ice making chamber 12 that has finished tilting, the ice pieces peeled off from the spherical ice 33 remain and adhere to the through holes 12a, and the ice pieces block the fountain hole 25 and the return hole in the water tray 19. Will be lost. In this case, in the next ice making operation,
When the temperature of the tap water is high, such as in the summer, the ice pieces can be quickly melted by the ice making water sprayed from the fountain holes 25, and the ice making water can be supplied to the ice making space. However, it is difficult to melt the ice pieces with ice-making water at a time when the temperature of tap water is considerably low, such as in winter, and in some cases, there is a serious problem that ice-making water cannot be supplied to the ice-making space. To do.

発明の目的 この発明は、前述した課題に鑑み、これを好適に解決す
るべく提案されたものであって、第１製氷室および傾動
自在な第２製氷室を備え、両製氷室の間で球状氷等の異
形氷を製造する自動製氷機において、第２製氷室を傾動
開放した際に、異形氷に割れや欠けが生ずるのを有効に
防止して、良好な氷塊を製造し得る手段を提供すること
を目的とする。OBJECT OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems, and it is proposed that the first ice making chamber and the tiltable second ice making chamber are provided, and a spherical shape is provided between both ice making chambers. In an automatic ice making machine for producing irregularly shaped ice such as ice, when the second ice making chamber is tilted and opened, the irregularly shaped ice is effectively prevented from cracking or chipping, and a means for producing a good ice block is provided. The purpose is to do.

課題を解決するための手段 前述した課題を克服し、所期の目的を好適に達成するた
め本発明は、機内に固定配置され、下方に開放する第１
製氷小室を多数画成した第１製氷室と、この第１製氷室
の直下に傾動自在に配設され、上方に開放する第２製氷
小室を多数画成した第２製氷室と、この第２製氷室の下
部に固定され、各第２製氷小室に対応して開孔する噴水
孔と戻り孔とを有する水皿と、この水皿の下方に一体的
に設けた製氷水タンクとからなり、製氷運転に際し前記
タンク中の製氷水を前記噴水孔から噴射して、両製氷小
室内に氷塊を形成すると共に、未氷結水は前記戻り孔を
介してタンクに回収するようにした自動製氷機におい
て、前記噴水孔および戻り孔と対応的に連通し合う供給
孔および排出孔を穿設した部材を、前記第２製氷室と水
皿との間に介装し、この部材を氷塊が容易に剥離し得る
材料から構成したことを特徴とする。Means for Solving the Problems In order to overcome the above-mentioned problems and preferably achieve an intended purpose, the present invention is fixedly arranged in a machine and opens downward.
A first ice making chamber defining a large number of ice making small chambers; a second ice making chamber defining a large number of second ice making small chambers that are tiltably arranged directly below the first ice making chamber and open upward; The water tray is fixed to the lower part of the ice making chamber, and has a fountain hole and a return hole opened corresponding to each second ice making small chamber, and an ice making water tank integrally provided below the water tray, In the ice making machine, the ice making water in the tank is jetted from the fountain holes during the ice making operation to form ice blocks in both ice making small chambers, and uniced water is collected in the tank through the return holes. A member provided with a supply hole and a discharge hole that communicate with the fountain hole and the return hole, is interposed between the second ice making chamber and the water tray, and the ice block easily peels off the member. It is characterized by being composed of a material capable of

実施例 次に、本発明に係る自動製氷機の除氷構造につき、好適
な実施例を挙げて、添付図面を参照しながら以下説明す
る。なお、実施例に示す自動製氷機の基本構造は、第19
図および第20図に関して既に説明した通りであるから、
同一部材については同じ符合で示すに止める。Embodiments Next, the deicing structure of the automatic ice making machine according to the present invention will be described below with reference to the accompanying drawings, with reference to preferred embodiments. The basic structure of the automatic ice maker shown in the example is the 19th
As already described with reference to Figures and 20,
The same members are indicated by the same reference numerals.

（第１実施例について） 第１図は、本発明の第１実施例に係る除氷構造が採用さ
れる噴射式自動製氷機の縦断側面図であって、第２製氷
室12と水皿19との間に、一枚の板材38が介装されてい
る。この板材38には、第２図に示す如く、水皿19に穿設
した各噴水孔25と対応的に連通する供給孔39、同じく水
皿19の各戻り孔26と対応的に連通する排出孔40が穿設さ
れている。そして板材38を前記の如く第２製氷室12と水
皿19との間に介装した状態で、これら各供給孔39および
排出孔40は、両製氷小室13,15に画成される対応の製氷
空間に、第２製氷小室15の底部に穿設した前記通孔12a
を介して連通している。従って、後述する製氷運転に際
し、噴水孔25および供給孔39を介して前記製氷空間に製
氷水が供給されると共に、該空間中で氷結するに到らな
かった未氷結水は、排出孔40および戻り孔26を介して製
氷水タンク34に帰還される。(Regarding the First Embodiment) FIG. 1 is a vertical cross-sectional side view of a jet type automatic ice maker in which the deicing structure according to the first embodiment of the present invention is adopted. The second ice making chamber 12 and the water tray 19 are shown in FIG. A sheet of plate material 38 is interposed between and. As shown in FIG. 2, the plate member 38 has a supply hole 39 corresponding to each fountain hole 25 formed in the water tray 19, and a discharge hole corresponding to each return hole 26 of the water tray 19. A hole 40 is provided. Then, with the plate member 38 interposed between the second ice making chamber 12 and the water tray 19 as described above, the supply holes 39 and the discharge holes 40 respectively correspond to the ice making small chambers 13 and 15. The through hole 12a formed in the bottom of the second ice making chamber 15 in the ice making space.
Through the. Therefore, in the ice making operation described later, while the ice making water is supplied to the ice making space through the fountain hole 25 and the supply hole 39, the unfrozen water that has not been frozen in the space is the discharge hole 40 and It is returned to the ice making water tank 34 through the return hole 26.

前記板材38の材質としては、例えばフッ素樹脂，ポリプ
ロピレン，ポリアセタールその他テフロン（登録商標）
に代表されるフルオロカーボン樹脂、その他ポリエチレ
ン等が好適に使用される。この材質からなる板材38は、
氷塊を容易に剥離させる性質（氷塊が付着し難い性質）
を有しているので、後述する如く、製氷運転時に第２製
氷小室15の通孔12aを介して板材38の表面に氷が強固に
氷結するのを防止し、第２製氷室12の傾動開放時に球状
氷33の下端が殆ど割れたり欠けることがない。なお板材
38の材料となるフッ素樹脂，ポリプロピレン，ポリアセ
タールおよびフルオロカーボン樹脂、その他ポリエチレ
ン等としては、食品衛生基準に合致し、かつ耐久性や耐
湿性にも優れるものが選択される。Examples of the material of the plate member 38 include fluororesin, polypropylene, polyacetal and other Teflon (registered trademark)
Fluorocarbon resins typified by and other polyethylene and the like are preferably used. The plate material 38 made of this material is
A property that easily separates ice blocks (a property that ice blocks do not easily attach)
Therefore, as will be described later, during the ice making operation, it is prevented that the ice is strongly frozen on the surface of the plate material 38 through the through hole 12a of the second ice making small chamber 15, and the second ice making chamber 12 is tilted and opened. Sometimes the lower end of the spherical ice 33 is hardly cracked or chipped. Plate material
As the material of 38, fluororesin, polypropylene, polyacetal, fluorocarbon resin, polyethylene, etc., which meet the food hygiene standards and have excellent durability and moisture resistance are selected.

また、前記第２製氷室12は、アルミニウムの如き熱良導
性の金属を材質とするブロック体として形成され、その
表面に所要厚みの皮膜35が形成されている。この皮膜35
としては、前記板材38と同じく氷難付着性の材料が好適
に使用され、製氷運転時に第２製氷小室15の内面に氷が
強固に氷結することを防止するよう構成されている。The second ice making chamber 12 is formed as a block body made of a metal having a good thermal conductivity such as aluminum, and a film 35 having a required thickness is formed on the surface thereof. This film 35
As the plate member 38, a material that is hard to adhere to ice is preferably used as the plate member 38, and is configured to prevent ice from being strongly frozen on the inner surface of the second ice making compartment 15 during the ice making operation.

なお第２製氷室12および板材38を水皿19に取付けるに
は、例えば第３図に示す手法が推奨される。すなわち、
第２製氷室12の底部に複数のねじ36を突設させ、これら
ねじ36を板材38に対応的に穿設した通孔38aおよび水皿1
9に対応的に穿設した通孔（図示せず）に共通的に挿通
した後、ナット37で固定することにより、該水皿19への
確実な取付けが達成される。To attach the second ice making chamber 12 and the plate 38 to the water tray 19, for example, the method shown in FIG. 3 is recommended. That is,
A plurality of screws 36 are provided on the bottom of the second ice making chamber 12, and the screws 36 are formed correspondingly to the plate member 38.
After being commonly inserted into a through hole (not shown) formed correspondingly to 9, the nut 37 is fixed, whereby the reliable attachment to the water tray 19 is achieved.

（第１実施例の作用効果について） 第１実施例に係る除氷構造では、製氷運転に際し、第１
図に示す如く第２製氷室12は、第１製氷室11を下方から
閉成して、各第１製氷小室13と各第２製氷小室15とを対
応させ、内部に氷形成用空間を画成している。この状態
で自動製氷機の製氷運転を開始すると、第１製氷室11に
設けた蒸発器14に冷媒が循環供給され、当該第１製氷室
11の冷却がなされる。また製氷水タンク34からの製氷水
は分配管24にポンプ圧送され、該分配管24の各噴水孔25
→板材38の供給孔39→第２製氷小室15の通行12aを介し
て、両製氷小室13,15に画成される球状空間中に噴射さ
れる。(Regarding Operation and Effect of First Embodiment) In the deicing structure according to the first embodiment, when the ice making operation is performed,
As shown in the figure, in the second ice making chamber 12, the first ice making chamber 11 is closed from below, the first ice making small chambers 13 and the second ice making small chambers 15 are made to correspond to each other, and an ice forming space is defined therein. Is made. When the ice making operation of the automatic ice making machine is started in this state, the refrigerant is circulated and supplied to the evaporator 14 provided in the first ice making chamber 11, so that the first ice making chamber
11 cooling is done. Further, the ice making water from the ice making water tank 34 is pumped to the distribution pipe 24, and the fountain holes 25 of the distribution pipe 24 are supplied.
→ Supply hole 39 of plate 38 → Injected through the passage 12a of the second small ice making chamber 15 into the spherical space defined by both small ice making chambers 13,15.

噴射された製氷水は、第１製氷小室13の内面に接触して
冷却され、下方の第２製氷小室15を潤した後、前記通孔
12aを介して前記球状空間から排出される。未氷結水
は、第２図に示す如く、板材38に穿設した複数の排出孔
40および水皿19に穿設した戻り孔26を介して、製氷水タ
ンク34に戻され再度の循環に供される。そして製氷水の
循環が反復される内に、タンク34中に貯留される製氷水
全体の温度が次第に低下すると共に、第１製氷室11から
の熱伝導により第２製氷小室15の温度も同様に次第に低
下する。The sprayed ice making water contacts the inner surface of the first ice making small chamber 13 to be cooled, moistens the second ice making small chamber 15 below, and then the through hole is formed.
It is discharged from the spherical space via 12a. As shown in FIG. 2, the uniced water is discharged through a plurality of discharge holes formed in the plate member 38.
It is returned to the ice making water tank 34 through the return hole 26 formed in the water tray 19 and the water tray 19, and is provided for circulation again. While the circulation of the ice making water is repeated, the temperature of the entire ice making water stored in the tank 34 gradually decreases, and the temperature of the second ice making small chamber 15 also similarly due to the heat conduction from the first ice making chamber 11. Gradually decreases.

そして、第４図（ａ）に示す如く、先ず第１製氷小室13
の内壁面で製氷水の一部が凍結して氷層が形成され始
め、未氷結水は通孔12a、排出孔40および戻り孔26から
タンク34に帰還するサイクルを重ねる間に、前記氷層の
成長が更に進行して、第４図（ｂ）に示す如く、最終的
に両製氷小室13,15に形成される球状空間中に球状氷33
が生成される。Then, as shown in FIG. 4 (a), first, the first ice making chamber 13
Part of the ice making water freezes on the inner wall surface of the ice, and an ice layer begins to be formed, and unfrozen water is returned to the tank 34 from the through hole 12a, the discharge hole 40, and the return hole 26 while the ice layer is formed. As shown in FIG. 4 (b), the spherical ice 33 is finally formed in the spherical space formed in both ice making chambers 13 and 15 as shown in FIG.
Is generated.

製氷進行状態を更に詳細に説明すると、第２製氷室12
は、前述の如くアルミニウム等の金属を材質とする熱良
導体で構成されているので、第１製氷室11からの熱伝導
が良好になされ、早期に第１製氷室11と略同一の適正冷
却温度となる。このため、第１製氷室11で氷層が形成さ
れると同時に、第２製氷室12でも氷層が形成される。し
かし、第２製氷室12の表面には皮膜35が形成されている
ので、第２製氷小室15と氷塊との氷結は強固なものとは
ならない。また、製氷運転の最終段階には、第２製氷小
室15の通孔12aを介して板材38の表面にも氷層が形成さ
れるが、この板材38は氷塊が付着し難い性質の材料から
形成されているので、該板材38と氷塊との氷結も強固な
ものとはならない。The ice making progress will be described in more detail. The second ice making chamber 12
As described above, since it is composed of a good heat conductor made of a metal such as aluminum, the heat conduction from the first ice making chamber 11 is made good, and the proper cooling temperature substantially the same as that of the first ice making chamber 11 is obtained at an early stage. Becomes Therefore, an ice layer is formed in the first ice making chamber 11, and at the same time, an ice layer is formed in the second ice making chamber 12. However, since the film 35 is formed on the surface of the second ice making chamber 12, the freezing of the second ice making small chamber 15 and the ice block is not strong. At the final stage of the ice making operation, an ice layer is also formed on the surface of the plate material 38 through the through hole 12a of the second ice making compartment 15, but this plate material 38 is made of a material having a property that ice lumps do not easily adhere to it. Therefore, the freezing of the plate material 38 and the ice blocks does not become strong.

第４図（ｂ）に示す如く球状氷33の製造が完了し、第１
製氷室11の温度が所要の温度域まで低下すると、適宜の
検知手段がこれを検出し、製氷水の循環供給を停止する
と共に、蒸発器14への冷媒の供給を続行する。そして前
記アクチュエータが付勢されて、水皿19および第２製氷
室12は、第４図（ｃ）において枢軸16を支点として時計
方向に回動を開始する。既に述べた如く、第２製氷小室
15と球状氷33および板材38と球状氷33とは強固に氷結し
ていないので、第４図（ｃ）に示す如く、第１製氷小室
13に氷結する球状氷33から各小室15が容易に剥離すると
共に、当該水皿19および第２製氷室12は、第１製氷室11
から強制剥離されて斜め下方に傾動し始める。As shown in FIG. 4 (b), the production of the spherical ice 33 is completed,
When the temperature of the ice making chamber 11 drops to a required temperature range, an appropriate detection means detects this, and the circulation supply of ice making water is stopped and the supply of the refrigerant to the evaporator 14 is continued. Then, the actuator is urged, and the water tray 19 and the second ice making chamber 12 start to rotate clockwise with the pivot 16 as a fulcrum in FIG. 4 (c). As already mentioned, the second ice making chamber
Since the ice pieces 15 and the spherical ice pieces 33 and the plate material 38 and the spherical ice pieces 33 are not strongly frozen, as shown in FIG. 4 (c), the first ice making chamber
The small chambers 15 are easily separated from the spherical ice 33 that freezes on the 13 and the water tray 19 and the second ice making chamber 12 are the first ice making chamber 11 and the ice making chamber 11.
Is forcibly peeled off and begins to tilt diagonally downward.

なお、第２製氷室12やアクチュエータに加わる負荷を更
に少なくするべく、最少限の除氷水を水皿19に供給して
第２製氷室12を加熱した後、該第２製氷室12および水皿
19を傾動するようにしてもよい。すなわち、実施例では
第２製氷室12の表面に形成した皮膜35および板材38を、
何れも氷塊が付着し難い性質の材料から構成したので、
球状氷33と第２製氷小室15および球状氷33と板材38との
氷結を解除させるための除氷水を不要とするか、または
その使用を最小限に抑えることができる。従って、消費
水量を大幅に低減し、ランニングコストを抑えることが
できる。In order to further reduce the load applied to the second ice making chamber 12 and the actuator, the minimum deicing water is supplied to the water tray 19 to heat the second ice making chamber 12, and then the second ice making chamber 12 and the water tray.
The 19 may be tilted. That is, in the embodiment, the film 35 and the plate member 38 formed on the surface of the second ice making chamber 12 are
Both are made of materials that are unlikely to cause ice blocks to adhere,
It is possible to eliminate or minimize the use of deicing water for releasing the freezing of the spherical ice 33 and the second ice making compartment 15 and the spherical ice 33 and the plate material 38. Therefore, it is possible to significantly reduce the amount of water consumed and suppress the running cost.

前記水皿19が最大限に傾動したタイミングをもって、ア
クチュエータはその回転を停止して水皿19の傾動を停止
させる。なお、前記氷案内板31は、図示しない機構によ
り傾動されて、傾動待機する第２製氷室12の上面を覆っ
て氷塊滑落用の円滑面を提供している（第４図（ｄ）参
照）。At the timing when the water tray 19 tilts to the maximum, the actuator stops its rotation and stops the tilting of the water tray 19. The ice guide plate 31 is tilted by a mechanism (not shown) to cover the upper surface of the second ice making chamber 12 which is waiting for tilting to provide a smooth surface for sliding down ice blocks (see FIG. 4 (d)). .

更に、蒸発器14にホットガスが供給され、第１製氷室11
の加温がなされて、第１製氷小室13の内面と球状氷33と
の氷結面の融解を開始する。なお第１製氷室11は、前述
の如く、水皿19が傾動開放するまで冷却が続行されてい
るので、球状氷33と第１製氷小室13の内面との氷結力
（固着力）は強く、第２製氷室12の開放時に球状氷33
は、第４図（ｃ）に示すように第１製氷小室13に固着し
ている。しかるに、蒸発器14には先程よりホットガスが
循環しているから、第１製氷室11は温度上昇中である。
そして、第１製氷小室13がある程度まで加温されると、
小室壁面と球状氷33との氷結が解除されて自重落下し、
傾動待機している前記氷案内板31の表面に落着し貯氷庫
（図示せず）に滑落回収される（第４図（ｄ）参照）。Further, hot gas is supplied to the evaporator 14, and the first ice making chamber 11
Is heated to start melting the icing surface between the inner surface of the first ice making compartment 13 and the spherical ice 33. Since the first ice making chamber 11 is continuously cooled until the water tray 19 is tilted and opened as described above, the ice forming force (fixing force) between the spherical ice 33 and the inner surface of the first ice making small chamber 13 is strong, Spherical ice 33 when the second ice making chamber 12 is opened
Is fixed to the first ice making compartment 13 as shown in FIG. 4 (c). However, since the hot gas circulates in the evaporator 14 more than before, the temperature of the first ice making chamber 11 is increasing.
When the first ice making chamber 13 is heated to some extent,
The freezing of the small chamber wall and the spherical ice 33 is released and it falls by its own weight,
It is settled on the surface of the ice guide plate 31 waiting for tilting and slid and collected in an ice storage (not shown) (see FIG. 4 (d)).

このように、球状氷33が全て第１製氷小室13から離脱す
ると、除氷運転を終了させると共に、前記アクチュエー
タを逆回転させ、水皿19および製氷水タンク34を反時計
方向に回動付勢し、水平状態に復帰させることによっ
て、第１製氷室11を再び下方から閉成する。このとき、
板材38の供給孔39および排出孔40は氷片により塞がれて
いないので、引き続いて製氷運転を円滑に行なうことが
できる。In this way, when all the spherical ice pieces 33 are separated from the first ice making compartment 13, the deicing operation is terminated, the actuator is rotated in the reverse direction, and the water tray 19 and the ice making water tank 34 are urged to rotate counterclockwise. Then, by returning to the horizontal state, the first ice making chamber 11 is closed again from below. At this time,
Since the supply hole 39 and the discharge hole 40 of the plate member 38 are not blocked by the ice pieces, the ice making operation can be smoothly performed subsequently.

（第２実施例について） 第５図および第６図は、本発明に係る自動製氷機の除氷
構造の第２実施例を示すものである。図面に示す如く、
水皿19の上面に、該水皿19が除氷運転に際して傾斜する
方向（以後「縦方向」ともいう）と交差する方向（以後
「横方向」ともいう）に所定間隔離間して複数（実施例
では３個）の板材38が配設されている。この板材38に
は、水皿19の傾斜方向に整列する各噴水孔25および戻り
孔26に対応して、供給孔39および排出孔40が穿設されて
いる。また水皿19には、横方向に隣接する板材38,38の
間に画成される溝部41に臨む位置に通孔19aが穿設さ
れ、この通孔19aに第２製氷室12の底部に突設したねじ3
6を挿通するよう構成してある。(Regarding Second Embodiment) FIGS. 5 and 6 show a second embodiment of the deicing structure of the automatic ice making machine according to the present invention. As shown in the drawing,
On the upper surface of the water tray 19, a plurality (implementation) are performed at predetermined intervals in a direction (hereinafter also referred to as “horizontal direction”) intersecting with a direction in which the water tray 19 is inclined during deicing operation (hereinafter also referred to as “vertical direction”) Three plate members 38 are provided. The plate member 38 has a supply hole 39 and a discharge hole 40 corresponding to the fountain holes 25 and the return holes 26 aligned in the inclination direction of the water tray 19. Further, the water tray 19 is provided with a through hole 19a at a position facing the groove portion 41 defined between the plate members 38, 38 laterally adjacent to each other, and the through hole 19a is provided at the bottom of the second ice making chamber 12. Protruding screw 3
It is configured to insert 6.

すなわち、各板材38は、第６図に示す如く、第２製氷室
12を水皿19にねじ36とナット37を介して固定することに
より、両部材12,19間に挟持された状態で位置決めされ
る。このとき、板材38に穿設した供給孔39と排出孔40
は、第２製氷室12における対応の通孔12aに臨んでい
る。That is, as shown in FIG. 6, each plate member 38 has a second ice making chamber.
By fixing the 12 to the water tray 19 via the screw 36 and the nut 37, the member 12 is positioned while being sandwiched between the members 12 and 19. At this time, the supply hole 39 and the discharge hole 40 formed in the plate member 38
Faces the corresponding through hole 12a in the second ice making chamber 12.

第２実施例では、第６図から判明するように、第２製氷
室12における各第２製氷小室15の周囲に画成した溝通路
17に対応する位置に板材38を配設しないようにすること
により、材料費を削減し得る利点がある。In the second embodiment, as is clear from FIG. 6, a groove passage defined around each second ice making sub-chamber 15 in the second ice making chamber 12.
By not disposing the plate member 38 at the position corresponding to 17, there is an advantage that the material cost can be reduced.

ここで、第２製氷室12の下端は、板材38に密着的に接触
するよう寸法設定されているが、実際の組付けに際して
は、必ずしもこれが完全でないことも有り得る。この場
合において、前記氷塊が付着し難い性質の材料から構成
した板材38は、その上面に水が表面張力により滞留し易
い。このため第１実施例の如く、第２製氷室12と水皿19
との間に全面的に板材38を配設した場合は、製氷運転の
初期に両製氷室11,12の合わせ目等から漏れる製氷水以
外に、第２製氷室12の下端と板材38との隙間から漏れる
製氷水が板材表面に滞留して経時的に氷結し、前記溝通
路17を流下する除氷水の流れを阻害するおそれがある。
これに対して、ABS樹脂等から構成される水皿19は、板
材38に比較して水を流し易い性質を備えている。Here, the lower end of the second ice making chamber 12 is dimensioned so as to come into close contact with the plate member 38, but this may not always be perfect in actual assembly. In this case, water is likely to stay on the upper surface of the plate member 38 made of a material having a property in which the ice blocks are unlikely to adhere, due to surface tension. Therefore, as in the first embodiment, the second ice making chamber 12 and the water tray 19 are provided.
When the plate material 38 is entirely disposed between the plate material 38 and the ice making water leaking from the joints of the ice making chambers 11 and 12 at the beginning of the ice making operation, The ice-making water leaking from the gap may stay on the surface of the plate material and freeze over time, which may impede the flow of the deicing water flowing down the groove passage 17.
On the other hand, the water tray 19 made of ABS resin or the like has a property of allowing water to flow more easily than the plate member 38.

しかるに、第２実施例では、縦方向に延在する前記溝通
路17に対応する位置に板材38を臨ませないよう構成した
ので、前記両製氷室11,12の合わせ目から漏れる製氷水
以外に、第２製氷室12の下端と板材38との隙間から漏れ
る製氷水を、前記水皿19の表面が露出する溝部41に沿っ
て流下させることができる。従って、除氷水の通路とな
る溝通路17と対応する溝部41内で製氷水が氷結すること
がなく、除氷水を溝通路17に円滑に流下させ得るもので
ある。However, in the second embodiment, since the plate member 38 is configured not to face the position corresponding to the groove passage 17 extending in the vertical direction, in addition to the ice making water leaking from the joint between the two ice making chambers 11 and 12. The ice making water leaking from the gap between the lower end of the second ice making chamber 12 and the plate member 38 can be made to flow down along the groove 41 where the surface of the water tray 19 is exposed. Therefore, the ice making water does not freeze in the groove portion 41 corresponding to the groove passage 17 which serves as a passage for the deicing water, and the deicing water can smoothly flow down to the groove passage 17.

第７図（ａ），（ｂ）は、夫々第２実施例の変形例を示
すものであって、第７図（ａ）に示す板材38は、矩形状
に形成した複数（第２製氷室12における縦方向に整列す
る第２製氷小室15の画成数に対応する数）の板片42を、
該板片42よりも細い接続材43を介して相互に連結してあ
る。各板片42には、前記水皿19に穿設した噴水孔25およ
び戻り孔26と対応的に連通する供給孔39および排出孔40
が穿設されている。また第７図（ｂ）に示す板材38は、
円盤状に形成した複数の板片42を、接続材43を介して連
結してある。すなわち、第７図（ａ），（ｂ）に示す変
形例は、何れも板材38の表面積を小さく設定されるの
で、材料費を低減させ得る利点がある。FIGS. 7 (a) and 7 (b) each show a modification of the second embodiment. The plate member 38 shown in FIG. 7 (a) is a plurality of rectangular members (second ice making chamber). The number of plate pieces 42 corresponding to the number of partitions of the second ice making chambers 15 aligned in the vertical direction in 12),
The plate pieces 42 are connected to each other via a connecting material 43 that is thinner than the plate pieces 42. Each plate piece 42 has a supply hole 39 and a discharge hole 40 that communicate with the fountain hole 25 and the return hole 26 formed in the water tray 19.
Has been drilled. The plate member 38 shown in FIG. 7 (b) is
A plurality of disc-shaped plate pieces 42 are connected via a connecting member 43. That is, in the modified examples shown in FIGS. 7A and 7B, since the surface area of the plate member 38 is set to be small, there is an advantage that the material cost can be reduced.

（第２実施例の作用効果について） 第２実施例に係る除氷構造では、前記板材38を複数に分
割して、第２製氷室12と水皿19との必要個所にのみ介装
するよう構成したので、材料費を低減することができ
る。また、第２製氷室12の底部に画成した縦方向に延在
する溝通路17に整列して溝部41を画成したので、第２製
氷室12の下端と板材38との隙間から漏れる製氷水があっ
ても、これを溝部41に沿って流下排出することができ
る。従って、溝通路17内で製氷水が滞留して氷結するの
を未然に防止して、該通路17に除氷水を円滑に流下させ
得るものである。(Regarding the operation and effect of the second embodiment) In the deicing structure according to the second embodiment, the plate member 38 is divided into a plurality of pieces so that the plate material 38 is interposed only in the necessary portions of the second ice making chamber 12 and the water tray 19. Since it is configured, the material cost can be reduced. Further, since the groove portion 41 is defined by being aligned with the groove passage 17 extending in the longitudinal direction defined at the bottom of the second ice making chamber 12, the ice making that leaks from the gap between the lower end of the second ice making chamber 12 and the plate member 38. Even if there is water, it can be discharged down the groove 41. Therefore, it is possible to prevent the ice making water from accumulating and freezing in the groove passage 17 in advance, so that the deicing water can smoothly flow down into the passage 17.

（第３実施例について） 第８図および第９図は、本発明の第３実施例を示すもの
であって、第２実施例に係る板材38と第２製氷室12との
位置決めを、簡単に行ない得るよう構成されている。す
なわち、第５図に示す板材38と同一形状の板材38の上面
には、前記第２製氷室12の縦方向に整列する各第２製氷
小室15と対応する位置に、所要形状の凹部44が形成され
ている。この凹部44は、第２製氷小室15の下端を嵌合可
能な形状（実施例では矩形状）を有している。また、凹
部44の略中央に、第９図に示す如く、第２製氷小室15の
通孔12aに嵌合可能な円形の突部45が穿設され、この突
部45の部分に前記供給孔39および排出孔40が穿設されて
いる。(Regarding the Third Embodiment) FIGS. 8 and 9 show a third embodiment of the present invention, in which the positioning of the plate member 38 and the second ice making chamber 12 according to the second embodiment is simplified. It is configured to do. That is, on the upper surface of the plate member 38 having the same shape as that of the plate member 38 shown in FIG. 5, a recess 44 having a required shape is formed at a position corresponding to each second ice making small chamber 15 aligned in the vertical direction of the second ice making chamber 12. Has been formed. The concave portion 44 has a shape (rectangular shape in the embodiment) into which the lower end of the second ice making chamber 15 can be fitted. Further, as shown in FIG. 9, a circular protrusion 45 which can be fitted into the through hole 12a of the second ice-making small chamber 15 is bored substantially in the center of the recess 44, and the supply hole is provided in the portion of the protrusion 45. 39 and a discharge hole 40 are provided.

従って、第９図に示す如く、前記第２製氷小室15の下端
を板材38における対応の凹部44に嵌合させると共に、通
孔12a中に突部45を嵌挿させることにより、該通孔12aに
供給孔39および排出孔40を正確に臨ませた状態で、第２
製氷室12と板材38との位置決めを簡単になし得る。これ
により組立時の位置決め作業を簡略化し、作業能率を向
上させることができる。また、突部45を通孔12aに嵌挿
することにより、仮に第２製氷室12と板材38との間に隙
間が形成された場合であっても、前記氷形成用空間に噴
射供給される製氷水が外部に漏れるのを有効に防止し得
る。Therefore, as shown in FIG. 9, the lower end of the second ice making chamber 15 is fitted into the corresponding recessed portion 44 of the plate member 38, and the projection 45 is inserted into the through hole 12a, whereby the through hole 12a is formed. With the supply hole 39 and the discharge hole 40 accurately facing the second
The ice making chamber 12 and the plate member 38 can be easily positioned. This simplifies the positioning work during assembly and improves work efficiency. Further, by inserting the protrusion 45 into the through hole 12a, even if a gap is formed between the second ice making chamber 12 and the plate member 38, it is jetted and supplied to the ice forming space. The ice making water can be effectively prevented from leaking to the outside.

第10図（ａ），（ｂ）は、第３実施例の変形例を夫々示
し、第10図（ａ）に示す実施例は、前記第７図（ａ）に
示す板材38の板片42に、凹部44と突部45とを夫々形成し
たものである。また、第10図（ｂ）に示す実施例は、前
記第７図（ｂ）に示す板材38の板片42に、凹部44と突部
45とを夫々形成したものであって、何れの実施例でも、
第２製氷室12と板材38との位置決めを迅速に行なうこと
ができる。FIGS. 10 (a) and 10 (b) respectively show modified examples of the third embodiment. The embodiment shown in FIG. 10 (a) corresponds to the plate piece 42 of the plate member 38 shown in FIG. 7 (a). In addition, the recess 44 and the protrusion 45 are respectively formed. Further, the embodiment shown in FIG. 10 (b) has a recess 44 and a protrusion on the plate piece 42 of the plate member 38 shown in FIG. 7 (b).
45 and 45 respectively, in any of the embodiments,
The second ice making chamber 12 and the plate member 38 can be positioned quickly.

また、第11図は第３実施例の更に別の変形例を示し、板
材38には、第２製氷室12の各通孔12aと対応する位置に
突部45のみが突設されている。そして、第12図に示す如
く、第２製氷室12の各通孔12aに、対応の突部45を嵌挿
することにより、第２製氷室12と板材38との位置決めを
簡単に行なうことができる。Further, FIG. 11 shows still another modified example of the third embodiment, in which the plate member 38 is provided with only a protrusion 45 at a position corresponding to each through hole 12a of the second ice making chamber 12. Then, as shown in FIG. 12, the corresponding projections 45 are fitted into the through holes 12a of the second ice making chamber 12, whereby the second ice making chamber 12 and the plate member 38 can be easily positioned. it can.

更に、第13図は第３実施例の更に別の変形例を示し、板
材38には、第２製氷小室15の下端を嵌合させ得る凹部44
のみが凹設されている。従って、第14図に示す如く、各
第２製氷小室15の下端を対応の凹部44に嵌合することに
より、第２製氷室12と板材38との位置決めがなされる。
なお、第２製氷小室15の通孔12aに臨むように、前記凹
部44の内部に供給孔39と排出孔40とが穿設されている。Furthermore, FIG. 13 shows another modification of the third embodiment, in which the plate member 38 is provided with a recess 44 into which the lower end of the second ice making chamber 15 can be fitted.
Only is recessed. Therefore, as shown in FIG. 14, the second ice making chamber 12 and the plate member 38 are positioned by fitting the lower ends of the respective second ice making chambers 15 into the corresponding recesses 44.
A supply hole 39 and a discharge hole 40 are formed inside the recess 44 so as to face the through hole 12a of the second small ice making chamber 15.

（第３実施例の作用効果について） 第３実施例に係る除氷構造では、前記水皿19に第２製氷
室12および板材38を組付けるに際し、先ず、第２製氷室
12の下端に、板材38を位置決めする。この場合に、第２
製氷室12の各第２製氷小室15の下端を、板材38に形成し
た対応の凹部44に嵌合すると共に、該板材38の突部45を
通孔12aに嵌挿する。これにより、第９図に示す如く、
該通孔12aを介して前記氷形成用空間に供給孔39および
排出孔40が連通した状態で、第２製氷室12と板材38とを
位置決めし得る。次いで、第２製氷室12の底部に突設し
たねじ36を、水皿19に穿設した通孔19aに挿通してナッ
ト37で締付固定すれば、板材38は、第２製氷室12と水皿
19との間に位置決め挟持される。このとき、板材38の供
給孔39と水皿19の噴水孔25とが連通すると共に、板材38
の排出孔40と水皿19の戻り孔26とが連通する。(Regarding Operation and Effect of Third Embodiment) In the deicing structure according to the third embodiment, when the second ice making chamber 12 and the plate member 38 are assembled to the water tray 19, first, the second ice making chamber is assembled.
The plate member 38 is positioned at the lower end of 12. In this case, the second
The lower ends of the respective second ice making chambers 15 of the ice making chamber 12 are fitted into the corresponding recesses 44 formed in the plate 38, and the projections 45 of the plate 38 are fitted into the through holes 12a. As a result, as shown in FIG.
The second ice making chamber 12 and the plate 38 can be positioned with the supply hole 39 and the discharge hole 40 communicating with the ice forming space through the through hole 12a. Next, the screw 36 protruding from the bottom of the second ice making chamber 12 is inserted into the through hole 19a formed in the water tray 19 and fixed by the nut 37. Water dish
Positioned between 19 and. At this time, the supply hole 39 of the plate 38 and the fountain hole 25 of the water tray 19 communicate with each other, and the plate 38
The discharge hole 40 and the return hole 26 of the water tray 19 communicate with each other.

（第４実施例について） 第15図および第16図は、本発明の第４実施例に係る自動
製氷機の除氷構造を示し、第３実施例に係る板材38と水
皿19との位置決めを簡単に行ない得るよう構成してあ
る。すなわち、第８図に示す実施例に係る構造の板材38
の下面（水皿19と対向する面）には、第15図に示す如
く、長手方向の両端部近傍に突起46,46が穿設されてい
る。また、この突起46,46に夫々対応する水皿表面に、
穴部47,47が穿設されており、第16図に示す如く、板材3
8の突起46,46を対応の穴部47,47に嵌挿することによっ
て、当該板材38と水皿19との正確な位置決めがなされ
る。そして、この状態で板材38の供給孔39と水皿19の噴
水孔25とが連通し合うと共に、板材38の排出孔40と水皿
19の戻り孔26とが連通し合うよう設定されている。(Regarding the Fourth Embodiment) FIGS. 15 and 16 show the deicing structure of the automatic ice making machine according to the fourth embodiment of the present invention, and the positioning of the plate 38 and the water tray 19 according to the third embodiment. Is configured to be easy. That is, the plate member 38 having the structure according to the embodiment shown in FIG.
As shown in FIG. 15, projections 46, 46 are formed in the lower surface (surface facing the water tray 19) near both ends in the longitudinal direction. Also, on the surface of the water dish corresponding to each of the protrusions 46, 46,
Holes 47, 47 are formed in the plate member 3 as shown in FIG.
By accurately inserting the projections 46, 46 of 8 into the corresponding holes 47, 47, the plate 38 and the water tray 19 are accurately positioned. Then, in this state, the supply hole 39 of the plate material 38 and the fountain hole 25 of the water tray 19 communicate with each other, and the discharge hole 40 of the plate material 38 and the water tray.
The 19 return holes 26 are set to communicate with each other.

また、板材38の上面（第２製氷室12の底部と対向する
面）には、前述した如く、凹部44および突部45が形成さ
れているので、当該板材38に第２製氷室12を迅速に位置
決めすることができる。すなわち、第２製氷室12と板材
38および水皿19の位置決めと組付けとが簡単になり、こ
れに要する時間を短縮することができて、作業能率を向
上させ得るものである。Further, as described above, since the recess 44 and the protrusion 45 are formed on the upper surface of the plate member 38 (the surface facing the bottom of the second ice making chamber 12), the second ice making chamber 12 can be quickly moved to the plate member 38. Can be positioned. That is, the second ice making chamber 12 and the plate material
The positioning and the assembling of the 38 and the water tray 19 can be simplified, the time required for this can be shortened, and the work efficiency can be improved.

（第４実施例の作用効果について） 第４実施例の除氷構造では、前記水皿19に第２製氷室12
および板材38を組付けるに際し、先ず、前記水皿19に穿
設した穴部47,47に、板材38に突設した対応の突起46,46
を嵌挿する。これにより、水皿19の噴水孔25および戻り
孔26に、板材38に穿設した対応の供給孔39および排出孔
40が連通した状態で、水皿19に板材38が位置決めされ
る。次いで、板材38の上面に形成した凹部44に、第２製
氷小室15の下端を嵌合すると共に、板材38の突部45を前
記通孔12aに嵌挿する。これにより、板材38の供給孔39
および排出孔40が、通孔12aに臨んだ状態で、板材38に
第２製氷室12が位置決めされる（第16図参照）。(Regarding Operation and Effect of Fourth Embodiment) In the deicing structure of the fourth embodiment, the water tray 19 is provided with the second ice making chamber 12
When assembling the plate member 38, first, in the holes 47, 47 formed in the water tray 19, the corresponding protrusions 46, 46 projecting from the plate member 38.
Insert. As a result, in the fountain hole 25 and the return hole 26 of the water tray 19, the corresponding supply hole 39 and discharge hole formed in the plate material 38 are provided.
The plate member 38 is positioned on the water tray 19 in the state where the plate 40 is in communication. Next, the lower end of the second small ice making chamber 15 is fitted into the recess 44 formed on the upper surface of the plate member 38, and the projection 45 of the plate member 38 is fitted into the through hole 12a. As a result, the supply hole 39 of the plate material 38
The second ice making chamber 12 is positioned on the plate member 38 with the discharge hole 40 facing the through hole 12a (see FIG. 16).

しかるに、第２製氷室12と板材38および板材38と水皿19
とを相互に位置決めした状態で、第２製氷室12を前記ね
じ36とナット37とにより水皿19に固定することにより、
各部材12,38,19は正確に位置決め固定される。すなわ
ち、第２製氷室12と板材38および水皿19を組付けるに際
し、各部材12,38,19の位置決めを迅速に行なうことがで
き、作業能率を向上させ得るものである。However, the second ice making chamber 12 and the plate 38 and the plate 38 and the water tray 19
By fixing the second ice making chamber 12 to the water tray 19 with the screw 36 and the nut 37 in a state where the and are mutually positioned,
Each member 12, 38, 19 is accurately positioned and fixed. That is, when assembling the second ice making chamber 12, the plate member 38, and the water tray 19, the respective members 12, 38, 19 can be quickly positioned, and the work efficiency can be improved.

（第５実施例について） 第17図および第18図は、本発明の第５実施例に係る自動
製氷機の除氷構造を示すものであって、前記第２製氷室
12における第２製氷小室15の画成数と同一数の板材38
が、対応の第２製氷小室15と水皿19との間に夫々配設さ
れている。この板材38は、基本的には前述した第４実施
例と同様の構成を備えている。すなわち、板材38の下面
に複数（実施例では２個）の突起46が穿設され、この突
起46を、水皿19の噴水孔25を挟んだ位置に穿設した対応
の穴部47に嵌挿することにより、当該板材38の水皿19に
対する位置決めがなされる。また、該板材38の上面に凹
部44と、供給孔39および排出孔40を穿設した突部45とが
形成され、第２製氷室12における各第２製氷小室15の下
端を、対応の板材38の上面に載置することにより、当該
板材38と第２製氷室12との位置決めを簡単に行ない得る
よう構成されている。(Regarding Fifth Embodiment) FIGS. 17 and 18 show a deicing structure of an automatic ice making machine according to a fifth embodiment of the present invention, wherein the second ice making chamber is used.
The same number of plates 38 as the number of partitions of the second ice making chamber 15 in 12
Are arranged between the corresponding second ice making chamber 15 and the corresponding water tray 19, respectively. The plate member 38 basically has the same structure as that of the above-described fourth embodiment. That is, a plurality of (two in the embodiment) protrusions 46 are formed on the lower surface of the plate member 38, and the protrusions 46 are fitted into corresponding hole portions 47 formed at positions sandwiching the fountain hole 25 of the water tray 19. By inserting, the plate member 38 is positioned with respect to the water tray 19. Further, a recess 44 and a protrusion 45 having a supply hole 39 and a discharge hole 40 are formed on the upper surface of the plate member 38, and the lower end of each second ice making sub-chamber 15 in the second ice making chamber 12 is provided with a corresponding plate member. By placing the plate member 38 on the upper surface of the second ice making chamber 12, the plate member 38 and the second ice making chamber 12 can be easily positioned.

（第５実施例の作用効果について） 第５実施例の除氷構造では、前記水皿19に第２製氷室12
および板材38を組付ける場合は、第17図に示す如く、先
ず、前記水皿19の各噴水孔25を挟んで穿設した穴部47,4
7に、対応する板材38の突起46,46を嵌挿する。このよう
に全ての板材38を水皿19の上面に位置決めした後、各板
材38の上面に対応する第２製氷小室15の下端を、第18図
に示す如く、凹部44と突部45を介して位置決めする。そ
して、第２製氷室12と水皿19とを、ねじ36とナット37と
を介して固定すれば、両部材12,19の間に板材38が相互
に位置決めされる。すなわち、第５実施例の除氷構造で
は、前述した第４実施例と同様に第２製氷室12と板材38
および板材38と水皿19との位置決めを簡単に行なうこと
ができ、作業時間を短縮し得る。(Regarding Operation and Effect of Fifth Embodiment) In the deicing structure of the fifth embodiment, the water tray 19 is provided with the second ice making chamber 12
When assembling the plate member 38 and the plate member 38, first, as shown in FIG. 17, holes 47, 4 formed by sandwiching the respective fountain holes 25 of the water tray 19 are provided.
The protrusions 46, 46 of the corresponding plate member 38 are fitted and inserted into the plate 7. After positioning all the plate members 38 on the upper surface of the water tray 19 as described above, the lower end of the second ice making small chamber 15 corresponding to the upper surface of each plate member 38 is inserted through the recess 44 and the protrusion 45 as shown in FIG. Position. Then, by fixing the second ice making chamber 12 and the water tray 19 via the screws 36 and the nuts 37, the plate members 38 are mutually positioned between the members 12 and 19. That is, in the deicing structure of the fifth embodiment, the second ice making chamber 12 and the plate member 38 are the same as in the above-described fourth embodiment.
Also, the plate member 38 and the water tray 19 can be easily positioned, and the working time can be shortened.

ここで自動製氷機は、ユーザーの広汎な要請に対応し得
るよう、製氷能力（第２製氷室12における第２製氷小室
15の画成数）が異なる種々の仕様が用意されている。こ
の場合に、前記第１実施例〜第４実施例に係る板材38で
は、１個の板材38の上面に複数の第２製氷小室15の下端
が位置決めされるよう構成されているので、これらの板
材38を使用する場合は、第２製氷室12における第２製氷
小室15の画成数に応じて、各仕様毎に寸法の異なる板材
38を製作する必要がある。これに対して第５実施例に係
る板材38は、前記第２製氷小室15に個々に対応するもの
であるので、各仕様における板材38の規格を統一するこ
とができる。これにより、異なる仕様の第２製氷室12に
対応する板材38を夫々製造したり、多数保管したりする
必要がなく、製造コストおよび在庫管理の諸経費を低減
し得る。Here, the automatic ice maker has an ice making capacity (the second ice making chamber in the second ice making chamber 12) so as to meet a wide range of requests from users.
Various specifications with different numbers of 15) are available. In this case, since the plate members 38 according to the first to fourth embodiments are configured such that the lower ends of the plurality of second ice making small chambers 15 are positioned on the upper surface of one plate member 38, When the plate material 38 is used, the plate material having different dimensions for each specification according to the number of partitions of the second ice making small chamber 15 in the second ice making chamber 12.
You need to build 38. On the other hand, since the plate member 38 according to the fifth embodiment individually corresponds to the second ice making chamber 15, the standards of the plate member 38 in each specification can be unified. As a result, it is not necessary to manufacture or store a large number of plate materials 38 corresponding to the second ice making chambers 12 having different specifications, and it is possible to reduce manufacturing costs and various costs of inventory management.

発明の効果 以上説明した如く、本発明に係る自動製氷機の除氷構造
によれば、下方に開放する第１製氷小室を備えた第１製
氷室と、上方に開放する第２製氷小室が画成された第２
製氷室とを基本的に備え、両製氷小室の閉成により内部
画成される氷形成用空間で氷塊を生成する製氷機に関連
して、第２製氷室と水皿との間に、氷塊が容易に剥離し
得る材質の材料からなる部材を介装している。従って、
第２製氷室の通孔を介して球状氷と部材が強固に氷結す
ることがなく、除氷運転に際して第２製氷室を傾動させ
た際に氷塊が円滑に剥離する。すなわち該氷塊の割れや
欠けの発生を有効に防止して、良好な氷塊を製造し得る
ものである。As described above, according to the deicing structure of the automatic ice making machine according to the present invention, the first ice making chamber having the first ice making small chamber opened downward and the second ice making small chamber opened upward are separated. Second made
In relation to an ice making machine which basically comprises an ice making chamber and which produces an ice mass in an ice forming space internally defined by closing both ice making small chambers, an ice mass is provided between a second ice making chamber and a water tray. A member made of a material that can be easily peeled off is interposed. Therefore,
The spherical ice and the member are not strongly frozen through the holes of the second ice making chamber, and the ice blocks are smoothly separated when the second ice making chamber is tilted during the deicing operation. That is, it is possible to effectively prevent the occurrence of cracks and chips of the ice blocks and to manufacture good ice blocks.

また請求項２および３に記載した如き除氷構造では、第
２製氷室や水皿に対する部材の位置決めを迅速に行ない
得るので、作業能率の向上を図り得る利点がある。Further, in the deicing structure as set forth in claims 2 and 3, the members can be quickly positioned with respect to the second ice making chamber and the water tray, so that there is an advantage that work efficiency can be improved.

なお球状氷の製造につき説明したが、本発明はこれに限
定されるものではなく、他の形状を有する多面体氷の製
造にも実施できることは勿論である。Although the production of spherical ice has been described, the present invention is not limited to this, and it goes without saying that it can be applied to the production of polyhedral ice having other shapes.

【図面の簡単な説明】[Brief description of drawings]

図面は本発明に係る自動製氷機の除氷構造の好適な実施
例を示すものであって、第１図は、第１実施例に係る除
氷構造が採用される噴射式自動製氷機における製氷機構
部の縦断側面図、第２図は、第１図に示す製氷機構部の
横断正面図、第３図は、第１実施例に係る除氷構造を概
略的に示す分解斜視図、第４図（ａ）〜（ｄ）は、第１
実施例に係る除氷構造の概略構成を夫々示す縦断側面図
であって、第４図（ａ）は、第１製氷室に対し第２製氷
室を閉成して、製氷運転が進行して両製氷小室中に中空
の球状氷が形成された状態を示し、第４図（ｂ）は、略
製氷が完了して両製氷小室中に中実な球状氷が形成され
た状態を示し、第４図（ｃ）は、アクチュエータにより
第２製氷室を時計方向に傾動開放した状態を示し、第４
図（ｄ）は、第１製氷室から球状氷が落下して、第２製
氷小室を塞いだ状態で傾斜位置する氷案内板を滑落する
状態を夫々示し、第５図は、本発明の第２実施例に係る
除氷構造の板材と水皿とを示す一部切欠斜視図、第６図
は、第５図に示す板材を第２製氷室と水皿とに組付けた
状態で示す要部横断正面図、第７図（ａ），（ｂ）は、
第２実施例に係る板材の変形例を夫々示す平面図、第８
図は、本発明の第３実施例に係る除氷構造の板材を示す
斜視図、第９図は、第８図に示す板材を第２製氷室と水
皿とに組付けた状態で示す要部縦断面図、第10図
（ａ），（ｂ）は、第３実施例に係る板材の変形例を夫
々示す斜視図、第11図は、第３実施例に係る板材の更に
別の変形例を示す斜視図、第12図は、第11図に示す板材
の組付け状態を示す要部縦断面図、第13図は、第３実施
例に係る板材の更に別の変形例を示す斜視図、第14図
は、第13図に示す板材の組付け状態を示す要部縦断面
図、第15図は、本発明の第４実施例に係る除氷構造の板
材と水皿とを示す概略斜視図、第16図は、第４実施例に
係る除氷構造の要部縦断面図、第17図は、本発明の第５
実施例に係る除氷構造の板材と水皿とを示す概略斜視
図、第18図は、第５実施例に係る除氷構造の要部縦断面
図、第19図は、従来技術に係る自動製氷機を、製氷が完
了して給水管から水皿に形成した水溜部に供給した除氷
水が、該水溜部の堰止め部からオーバーフローして、氷
案内板の裏面に沿って流下して排水皿から機外へ排出さ
れる状態で示す縦断側面図、第20図は、第19図に示す自
動製氷機において、除氷運転に伴い傾動開放した第２製
氷室の上面を覆う氷案内板の表面を、第１製氷室から落
下した球状氷が滑落する状態を示す縦断側面図である。 11…第１製氷室、12…第２製氷室 13…第１製氷小室、15…第２製氷小室 19…水皿、25…噴水孔 26…戻り孔、34…製氷水タンク 38…板材、39…供給孔 40…排出孔The drawings show a preferred embodiment of the deicing structure of the automatic ice making machine according to the present invention, and Fig. 1 shows the ice making in the jet type automatic ice making machine adopting the deicing structure of the first embodiment. FIG. 2 is a vertical cross-sectional side view of the mechanical portion, FIG. 2 is a cross-sectional front view of the ice making mechanical portion shown in FIG. 1, and FIG. 3 is an exploded perspective view schematically showing the deicing structure according to the first embodiment. Figures (a)-(d) show the first
FIG. 4A is a vertical cross-sectional side view showing a schematic configuration of the deicing structure according to the embodiment, and FIG. 4A shows that the second ice making chamber is closed with respect to the first ice making chamber, and the ice making operation progresses. FIG. 4 (b) shows a state in which hollow spherical ice is formed in both ice making compartments, and FIG. 4 (b) shows a state in which substantially spherical ice making is completed and solid spherical ice is formed in both ice making compartments. FIG. 4 (c) shows a state in which the second ice making chamber is tilted and opened clockwise by the actuator.
Drawing (d) shows the state where spherical ice falls from the first ice making chamber and slides down the inclined ice guide plate with the second ice making chamber closed, and Fig. 5 shows the first ice making chamber of the present invention. 2 is a partially cutaway perspective view showing a plate material and a water tray of the deicing structure according to the second embodiment, and FIG. 6 is a view showing the plate material shown in FIG. 5 assembled in a second ice making chamber and a water tray. The cross-section front view, FIG. 7 (a), (b),
The top view which shows the modification of the board | plate material which concerns on 2nd Example, respectively, 8th
FIG. 9 is a perspective view showing a plate material of a deicing structure according to a third embodiment of the present invention, and FIG. 9 is a view showing the plate material shown in FIG. 8 assembled in a second ice making chamber and a water tray. 10A and 10B are perspective views showing modified examples of the plate material according to the third embodiment, and FIG. 11 is another modification of the plate material according to the third embodiment. Fig. 12 is a perspective view showing an example, Fig. 12 is a longitudinal sectional view of an essential part showing an assembled state of the plate material shown in Fig. 11, and Fig. 13 is a perspective view showing still another modified example of the plate material according to the third embodiment. FIG. 14 is a vertical cross-sectional view of a main part showing an assembled state of the plate material shown in FIG. 13, and FIG. 15 shows a plate material and a water tray having a deicing structure according to a fourth embodiment of the present invention. FIG. 16 is a schematic perspective view, FIG. 16 is a longitudinal sectional view of an essential part of the deicing structure according to the fourth embodiment, and FIG.
FIG. 18 is a schematic perspective view showing a plate material and a water tray of the deicing structure according to the embodiment, FIG. 18 is a longitudinal sectional view of a main part of the deicing structure according to the fifth embodiment, and FIG. The deicing water supplied from the water supply pipe to the water reservoir formed in the water tray of the ice making machine overflows from the damming portion of the water reservoir, and flows down along the back surface of the ice guide plate for drainage. FIG. 20 is a vertical cross-sectional side view showing a state in which the ice is discharged from the plate to the outside of the machine. It is a vertical side view showing a state in which spherical ice dropped from the first ice making chamber slides off the surface. 11 ... 1st ice making chamber, 12 ... 2nd ice making chamber 13 ... 1st ice making chamber, 15 ... 2nd ice making chamber 19 ... Water tray, 25 ... Fountain hole 26 ... Return hole, 34 ... Ice making water tank 38 ... Plate material, 39 … Supply hole 40… Discharge hole

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】機内に固定配置され、下方に開放する第１
製氷小室（13）を多数画成した第１製氷室（11）と、こ
の第１製氷室（11）の直下に傾動自在に配設され、上方
に開放する第２製氷小室（15）を多数画成した第２製氷
室（12）と、この第２製氷室（12）の下部に固定され、
各第２製氷小室（15）に対応して開孔する噴水孔（25）
と戻り孔（26）とを有する水皿（19）と、この水皿（1
9）の下方に一体的に設けた製氷水タンク（34）とから
なり、製氷運転に際し前記タンク（34）中の製氷水を前
記噴水孔（25）から噴射して、両製氷小室（13,15）内
に氷塊を形成すると共に、未氷結水は前記戻り孔（26）
を介してタンク（34）に回収するようにした自動製氷機
において、 前記噴水孔（25）および戻り孔（26）と対応的に連通し
合う供給孔（39）および排出孔（40）を穿設した部材
（38）を、前記第２製氷室（12）と水皿（19）との間に
介装し、 この部材（38）を氷塊が容易に剥離し得る材料から構成
した ことを特徴とする自動製氷機の除氷構造。1. A first unit fixedly arranged inside the machine and opened downward.
A first ice making chamber (11) that defines a large number of ice making small chambers (13), and a large number of second ice making small chambers (15) that are tiltably arranged directly below the first ice making chamber (11) and open upward. The second ice making chamber (12) defined and fixed to the lower part of the second ice making chamber (12),
Fountain hole (25) that opens corresponding to each second ice making compartment (15)
And a return hole (26) and a water tray (19), and this water tray (1
9) and an ice making water tank (34) integrally provided below the ice making water in the tank (34) from the fountain hole (25) during the ice making operation. 15) The ice lumps are formed in the inside and unfrozen water is formed in the return hole (26).
In an automatic ice maker which is designed to collect in a tank (34) through a water supply hole (25) and a return hole (26), a supply hole (39) and a discharge hole (40) which communicate with each other are formed. The member (38) provided is interposed between the second ice making chamber (12) and the water tray (19), and the member (38) is made of a material from which an ice block can be easily separated. The deicing structure of the automatic ice maker. 【請求項２】各第２製氷小室（15）の底部に製氷水供給
および回収用の通孔（12a）を穿設すると共に、前記部
材（38）における第２製氷室（12）と対向する側の面
に、前記通孔（12a）に嵌挿可能な突部（45）を突設
し、この突部（45）に前記供給孔（39）および排出孔
（40）を穿設した ことを特徴とする請求項１記載の自動製氷機の除氷構
造。2. A through hole (12a) for supplying and recovering ice making water is provided at the bottom of each second ice making chamber (15) and faces the second ice making chamber (12) of the member (38). A protrusion (45) that can be fitted into the through hole (12a) is provided on the side surface, and the supply hole (39) and the discharge hole (40) are provided in this protrusion (45). The deicing structure of the automatic ice maker according to claim 1. 【請求項３】前記部材（38）における水皿（19）と対向
する側の面に、複数の突起（46）を穿設すると共に、こ
の突起（46）と対応的に穴部（47）を水皿（19）に穿設
し、部材（38）の突起（46）を水皿（19）の穴部（47）
に嵌挿することにより位置決めし得るよう構成した請求
項１または２記載の自動製氷機の除氷構造。3. A plurality of projections (46) are formed on the surface of the member (38) facing the water tray (19), and a hole (47) corresponding to the projection (46). The water tray (19), and the protrusion (46) of the member (38) is fitted with the hole (47) of the water tray (19).
The deicing structure for an automatic ice maker according to claim 1 or 2, wherein the deicing structure is configured so that it can be positioned by being inserted into.