JP2572174Y2 - Prevention of cloudiness in ice machines - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanism for preventing white turbidity of an ice making machine, and more particularly, to ice making water in an ice making chamber defined inside a water tray, and a plurality of ice making projections provided on the lower surface of an ice making substrate. In an ice maker that is immersed and forms an inverted dome-shaped ice block around the ice-making projections as the ice-making operation proceeds, in view of the fact that the obtained ice block becomes cloudy, the ice-making water in the water tray during the ice-making operation. The present invention relates to a white turbidity preventing mechanism which constantly moves the slab to produce a transparent ice block having a high commercial value.

[0002]

2. Description of the Related Art In an automatic ice maker for continuously producing a large number of ice blocks such as ice cubes, many types are proposed as ice making methods, and an appropriate method is adopted according to the application. For example, a large number of partition plates are arranged vertically and horizontally to define a large number of ice making compartments that open downward, and ice making water is jetted and supplied from the water tray arranged below to the corresponding ice making compartments to freeze. Sprinkling ice making water from below into these ice making compartments without using a closed-cell type ice machine or ice tray that forms ice cubes in each ice making compartment cooled by the evaporator tube connected to the system. Thus, an open-cell type ice maker that forms ice cubes in each of the small chambers, and ice making water flowing down from above one side of an ice maker plate placed upright, thereby forming a kamaboko-shaped ice block on the surface of the ice maker plate. 2. Description of the Related Art There are known a large number of water-fall type ice makers.

Each of the above three types of ice making machines is provided with an ice making water tank for storing a required amount of ice making water, and the ice making water in the tank is pumped by a pump to make the ice making room or the upright of the ice making unit. A forced circulation mechanism is employed in which ice water that has been supplied to the ice making plate and has not been frozen is recovered in the tank and then sent out again to the ice making unit. Therefore, these ice machines require additional equipment such as an ice making water tank and a pump for circulating the ice making water, which complicates the configuration, increases the production cost, and contributes to an increase in size. On the other hand, ice making water is stored in a water dish at a required level, and an ice making projection projecting from the lower surface of an ice making substrate provided with an evaporating tube is immersed in the ice making water, so that the ice making projection is formed. A simple ice maker in which an ice block is formed has already been proposed. In this ice machine,
An ice maker that has a simplified structure and can reduce manufacturing costs because it does not require a mechanism for circulating the ice making water between the water tray and the ice making water tank during the ice making operation. Has the advantage that it can be manufactured.

[0004]

As described above, in an ice making machine in which a large number of ice-making projections kept cooled can be formed only by immersing the ice-making projections in the ice-making water in a water dish, Naturally, the ice making water does not circulate at all during the ice making operation, and is kept in a so-called "stationary state". For this reason, the ice mass gradually formed around the ice making projection becomes cloudy and opaque due to the effect of air dissolved in the ice making water. The fact that the obtained ice block is cloudy does not generally cause a problem with respect to uses such as ice cooling. However, when this cloudy ice is used for eating and drinking in coffee shops and restaurants, it has a disadvantage that it is clearly inferior in appearance to clear and clear ice, and the commercial value is reduced as a whole.

[0005]

[Purpose of the Invention] The present invention is to immerse the ice making projections cooled by the above-mentioned evaporating tube in ice making water stored in a water dish,
In view of the disadvantage that the ice blocks inside the ice maker that forms the ice blocks around the ice making projections are opaque, it has been proposed to solve the problem in a favorable manner. It is an object of the present invention to provide a mechanism that can be constantly moved to effectively prevent clouding of ice blocks.

[0006]

SUMMARY OF THE INVENTION In order to overcome the above-mentioned problems and achieve the intended object, the present invention provides an evaporating pipe connected to a refrigeration system having a compressor, a condenser and the like, and the evaporating pipe is provided on an upper surface. An ice making board having a plurality of ice making sections provided on the lower surface thereof projecting and hanging at predetermined intervals and an ice making water in an ice making chamber which is always tiltably disposed horizontally and defined inside; Wherein the ice making water freezes around the ice making section to form a required ice block, and the tilting mechanism tilts the water tray obliquely downward. The inside of the ice making chamber of the dish can be swung so as to be able to freely contact and separate from the bottom of the ice making chamber, and allows the flow of ice making water during the swing.
A rocking plate having through holes formed at required intervals is housed and arranged, and the rocking means is engaged during the ice making operation under the action of the rocking means disposed outside the water tray and the rocking plate. The plate is rocked inside the ice making room to move ice making water in the ice making room, thereby preventing the ice blocks formed around the ice making part from becoming cloudy. In addition, by overcoming the aforementioned issues,
In order to achieve the purpose, the present invention includes a compressor, a condenser, etc.
Tube connected to the refrigerating system, and this evaporator tube
At the same time, a large number of ice making parts are projected and
With the ice making board lowered, always tilt it horizontally.
The ice making unit is immersed in ice making water in an ice making room defined inside.
The ice making water freezes around the water plate to be pickled and the ice making part
When the required ice block is formed, tilt the water tray diagonally downward.
An ice making machine comprising a tilting mechanism for causing
The dish is housed and arranged inside the ice making room, and the bottom of the ice making room
A swing plate that can swing freely to and away from the surface;
The plate is one edge of a bottom plate having a peripheral dimension that can be stored in the water dish.
A rising portion for pivotally supporting the rocking plate with respect to the water tray.
A plurality of through holes in the bottom plate and the rising portion.
The through holes formed in the bottom plate are immersed in ice making water.
It is positioned so as to face between the immersed ice making projections,
The relationship between the rocking means and the rocking plate disposed outside the water tray
Under the combined action, the rocking plate is rocked inside the ice making chamber during the ice making operation.
Is dynamic exercised the ice-making water in the ice making chamber, whereby said
It is designed to prevent clouding of ice blocks around the ice making area.
It is characterized by having done.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an ice making machine according to the present invention.

[0008]

First Embodiment FIGS. 4 and 5 are a sectional view and a perspective view, respectively, schematically showing the overall structure of an ice making machine employing a white turbidity preventing mechanism according to the first embodiment. The interior of the housing 10 constituting the ice making machine main body includes a compressor 16 and a condenser 18.
And the like, a lower machine room 14 in which a refrigerating machine is housed, an ice storage 12 located above and enclosed by a heat insulating material and closed by a door 26 so as to be openable and closable, and disposed above the ice storage 12 And an ice making unit 20. The ice making unit 20 includes a water tray 24 for storing ice making water at a predetermined level, as described below with reference to FIGS.
An ice making substrate 34 having ice making projections 36 immersed in the ice making water, and the water tray 24 is tilted at a predetermined angle when the operation is switched to the deicing operation, and the ice making water in the water tray 24 is drained by a drainage receiving portion. 28
In addition to being discharged to the outside through the drain pipe 30, ice blocks can be discharged to the ice storage 12.

FIG. 2 is a longitudinal sectional view showing details of the ice making unit 20. The water tray 24 has the shape shown in FIGS. 1 and 3, and has an ice making chamber 3 defined therein.
2 is capable of storing ice making water at a predetermined level. That is, the ice making chamber 32 has a rectangular bottom surface 24a of the water tray 24 and wall surfaces 24b, 24c, 2
4d, 24e, and supporting pieces 50, 50 are attached to the outside of the upright walls 24d, 24e facing each other in the short direction. As shown in FIG. 3, the support piece 50 provided on the upright wall 24d has a cam piece 50a bent obliquely downward at a position separated from the water tray 24, and the cam piece 50a has a long hole. A groove 54 is formed, and a cam follower 56 projecting from an eccentric position of a cam disk 58 described later slidably faces the groove 54. Further, a protruding piece 49 is formed at a bent portion of the support piece 50 that is separated from the water tray 24, and a turning support shaft 52 is inserted into a through hole formed in the projecting piece 49. The pivot 52 is fixed to the main body of the ice making machine, and the water tray 24 is moved around the pivot 52 under the action of a cam associated with the rotation of an actuator motor 60 connected to the cam disk 58 in FIG. As shown in FIG. 11, tilting can be performed diagonally downward and return diagonally upward.

As shown in FIG. 2 and FIG.
A water discharge passage for discharging ice making water in the ice making chamber 32 to the outside when the water tray 24 is tilted. That is, a drain chute 38 extending obliquely downward is provided on the lower surface of the water tray 24.
A drain receiving portion 28 that receives the discharged water and discharges the discharged water to the outside is disposed near the open end below the drain chute 38 and is disposed above the inside of the ice storage 12.
(See FIG. 4). A vertical wall surface in the longitudinal direction of the water tray 24 (the side opposite to the side on which the pivot 52 is disposed) is constituted by a dam plate 42 as seen from FIG. From the water dish inner wall 24c
Are formed integrally with the water tray 24. The inner wall of the water dish 24
The lower open end of c is located above the bottom surface of the water tray 24 with a slight gap therebetween. Therefore, as shown in FIG.
The ice making water reaches the blocking plate 42 via the lower open end of the inner wall 24c of the water tray, overflows from the upper end surface of the blocking plate 42, and can be discharged to the drain chute 38. In other words, the ice making water stored in the ice making chamber 32 is maintained at a predetermined level by the dam plate 42. When the operation is switched to the deicing operation described later, as shown in FIG. 9, the water tray 24 tilts obliquely downward and drains the ice making water to the drain chute 38.
Drain through. At the position where the water tray 24 stops tilting, a part of the ice making water remains as it is by the dam plate 42.
(See FIG. 10), which can be mixed with water replenished from the ice making water supply pipe 68 for the next ice making operation to promote the temperature drop of the ice making water as a whole.

An ice making substrate 3 is provided above the inside of the housing 10.
4 is horizontally disposed and fixed, and on the upper surface of the ice making substrate 34,
Evaporation tube 22 derived from a refrigeration system housed in machine room 14
Are arranged in a meandering manner. On the lower surface of the ice making substrate 34, a number of ice making projections 36 are provided so as to hang down at required intervals, and during the ice making operation, the ice making projections 36 are attached to the water tray 24.
It is immersed in ice making water stored in the area. By the operation of the refrigeration system, heat exchange with the refrigerant is performed in the evaporating tube 22. As a result, the ice making projections 36 are cooled and maintained at 0 ° C. or lower. As a result, as shown in FIG. 70 will be formed.

Inside the ice making chamber 32 of the water tray 24,
An L-shaped swing plate 44 is swingably arranged, and is driven to swing vertically by rotation of a swing motor 64. That is, as shown in FIG. 3 in particular, the swinging plate 44 made of a horizontal plate having a vertical rising portion 45 has a large number of through holes 46 formed at required intervals on the surface thereof. The peripheral dimension of the rocking plate 44 is the bottom surface 24 a of the ice making chamber 32.
Is slightly smaller than the internal dimensions of the rising portion 4
The swing support shaft 48 is inserted into a through hole formed at the upper end of the pivot 5. Both ends of the swing shaft 48 are inserted into through holes 53a of a projecting piece 53 projecting from supporting pieces 50 provided on both outer side walls of the water tray 24, respectively. In a state where the swing plate 44 is pivotally supported by the swing support shaft 48, the swing plate 44 is closely mounted on the bottom surface of the ice making chamber 32 as shown in FIG.

As shown in FIG. 3, an upright piece 59 is formed integrally with the lateral edge of the swinging plate 44, and an engaging pin 61 extends horizontally from the upright piece 59. FIG.
A swing motor 64 shown in FIG. 3 is fixed inside the main body of the ice making machine, and an engagement piece 62 disposed on a rotation shaft of the motor 64 and protruding in the radial direction engages with the swing plate 44. The pin 61 can be engaged and disengaged from below. Therefore, when the swing motor 64 is rotated counterclockwise, the engagement piece 62 rotates in a state of being engaged with the engagement pin 61 as shown in FIG. From the engaging piece 6 as shown in FIG.
When the pin 2 is disengaged from the engaging pin 61, the swing plate 44 falls to the bottom of the ice making chamber 32 by its own weight. That is, if the swing motor 64 is rotated during the ice making operation, the swing plate 44 repeats up and down swings inside the ice making chamber 32 around the swing support shaft 48, thereby constantly moving the ice making water. Can be. Since the through hole 46 is formed in the rocking plate 44, the ice making water flows up and down through the through hole 46, and a more active movement is obtained. However, the through hole 46 is not indispensable, and may be omitted as necessary.

The rocking plate 44 is tilted integrally with the tilting of the water tray 24 during the de-icing operation described later, but the tilting locus of the engaging pin 61 provided on the rocking plate 44 includes: A stopper 63 extending horizontally from the housing 10 is exposed. The rocking plate 44 is separated from the water plate 24 by engaging the engaging pin 61 with the stopper 63 while the rocking plate 44 is tilted together with the water plate 24, and the tilting posture thereof is changed. It is kept constant.

[0015]

Next, the operation of the white turbidity preventing mechanism according to the first embodiment will be described. Prior to the ice making operation, the water tray 24 is always kept in a horizontal position as shown in FIG.
Ice making water is supplied to the inside ice making chamber 32. The supply and stop of the ice making water from the ice making water supply pipe 68 are performed, for example, by switching the cam disk 58 and the micro switch 66 shown in FIG. Even if it is supplied a little more, the ice making water in the ice making chamber 32 overflows the dam plate 42 as described above, and is discharged to the outside through the drain chute 38 and the drain receiving portion 28.

By switching a valve (not shown) provided in the refrigerant circulation pipe of the refrigeration system, the refrigerant is supplied to the evaporating pipe 22, and the heat exchange action cools the ice making projections 36 projecting from the ice making substrate 34. Is started. Since the ice making projection 36 is immersed in ice-making water, ice formation starts around the projection 36 and gradually grows to form an inverted dome-shaped ice block 70 as shown in FIG. By rotating the rocking motor 64 during the ice making operation, the engaging piece 62 of the motor 64 is engaged with the engaging pin 61 provided on the upright piece 59, and the rocking plate 44 is moved. Lift up as shown in FIG. When the engaging piece 62 is disengaged from the engaging pin 61, the swinging plate 44 falls by its own weight and comes into contact with the bottom surface 24a of the ice making chamber 32 as shown in FIG. As described above, the rocking plate 44 repeatedly rocks in the ice making water in the ice making chamber 32 during the ice making operation, whereby the ice making water is constantly moved. Moreover, a through hole 46 is formed in the swing plate 44.
The ice making water passes through the through-holes 46 with the swing of the swing plate 44, and this makes the movement of the ice making water more active with a jet phenomenon. Since the ice making water is always kept in the dynamic state, the ice blocks 70 formed around the ice making projections 36 are prevented from becoming cloudy, and transparent and clear ice blocks 70 are obtained.

As shown in FIG. 8, when a complete ice block 70 is formed in an inverted dome shape on the ice making projection 36, the completion of the ice making is detected by appropriate means, and the ice making operation is terminated. Then, the drive of the actuator motor 60 is started to rotate the cam disk 58, and the cam follower 56 eccentrically disposed on the cam disk 58 is rotated.
However, by sliding on the cam groove 54 formed in the cam piece 50a, the cam action is performed, and the water tray 24 starts to tilt obliquely downward. Due to this tilt, the ice making water in the ice making chamber 32 is discharged to the drainage chute 38 via the inner wall 24c of the water tray and the dam plate 42, and is discharged to the drainage receiving portion 28 from the drainage chute 38. Then, as shown in FIG. 10, when the water tray 24 reaches a required tilt angle, the tilt is stopped. At this time, a part of the ice making water blocked by the blocking plate 42 remains in the ice making chamber 32. Since the remaining ice making water is sufficiently cooled in the previous ice making operation, it can be mixed with new ice making water supplied for the next ice making operation to lower the temperature of the whole ice making water. .

When the water tray 24 is tilted in this manner, an ice block 70 formed around the ice making projection 36 comes to be exposed while being attached to the projection 36. In addition, the rocking plate 44 also tilts integrally with the tilting of the water tray 24, so that the engaging pin 61 comes off the engaging piece 62 of the rocking motor 64. Then, as shown in FIG. 10, in the process of stopping the tilting of the water tray 24, the engaging pin 61 of the rocking plate 44 is locked to the stopper 63, so that the ice making chamber 32 of the water tray 24 that has stopped tilting thereafter. From the bottom surface 24a of the swing plate 4
4 is located diagonally above. This rocking plate 44
Functions as a sliding chute for guiding the ice block 70 to the ice storage 12 when it falls.

In the state shown in FIG. 10, the valve element in the refrigeration system is switched, and hot gas is supplied instead of refrigerant to the evaporating pipe 22.
As a result, the ice making projections 36 are rapidly heated via the ice making substrate 34. Therefore, the connection between the ice making projection 36 and the ice block 70 is released, and the ice block 7
0 falls under its own weight. Then, it slides down the upper surface of the swinging plate 44 held in a required inclined posture by the stopper 63, and is guided and discharged into the ice storage 12 located diagonally below.

When the deicing is completed, the cam disk 58
And the microswitch 66, or an appropriate means (not shown) detects the end of the deicing and rotates the actuator motor 60. As a result, the cam disk 58,
Under the action of the cam follower 56 and the cam groove 54, the cam piece 50
is rotated counterclockwise about the pivot 52, so that the water tray 24 is rotated counterclockwise and stopped after returning to the horizontal position. At this time, as described above, the ice making water used in the previous ice making operation remains in the ice making chamber 32, and is in a sufficiently cooled state. When the ice making water is supplied through the ice making water supply pipe 68, the temperature of the obtained ice making water is rapidly lowered as a whole, and the ice making operation can be immediately started.

[0021]

Second Embodiment FIG. 12 is a perspective view showing a schematic structure of a white turbidity preventing mechanism according to a second embodiment.
The water tray 72 in which the storage tray 1 is stored and arranged has a rectangular bottom surface 72a,
Walls 72b, 72c, 72d, 72e standing upright on all sides
And an ice making chamber 73 in which a required amount of ice making water is stored. In addition, a plurality of shaft support portions 74 are aligned and integrally formed along the longitudinal direction outside one of the upright walls 72 e along the longitudinal direction, and the water tray 72 is connected to the ice storage 12 via the shaft support portions 74. It is pivotally supported upward so as to be rotatable. An actuator motor AM is connected to the shaft support 74 via a linking mechanism 75. The rotation of the motor AM causes the water tray 72 to tilt obliquely downward and return upward.

As shown in FIG. 12, three sides of a bottom plate 71a formed in a rectangular shape, excluding a side opposed to an upright wall 72d which is a tilting end side of the water tray 72, are provided inside the ice making chamber 73 of the water tray 72. And vertical rising portions 71b, 71c, 71
The swing plates 71 each formed with d are arranged to be swingable, and are driven to swing up and down by rotation of a swing motor RM. The perimeter of the rocking plate 71 is the ice making room 73
Are slightly smaller than the internal dimensions of the bottom surface 72a in FIG. 3, and projections 76, 76 formed on both sides in the upper longitudinal direction of the rising portion 71b are pivotally supported on the water tray 72 via pins 77, 77. Is done. Then, with the swing plate 71 pivotally supported by the water tray 72, the swing plate 71 is placed on the bottom surface of the ice making chamber 73 in close contact (see FIG. 15).

The bottom plate 71a of the rocking plate 71 includes:
As shown in FIG. 14, a large number of circular or square through holes 78 are formed at required intervals. These through holes 78
The ice block 70 is set so as to face between the adjacent ice making projections 36, 36, and when the swinging plate 71 swings, the movement of the ice making water at the position facing between the ice making projections 36, 36 is activated, so that the ice block 70 is formed. Is effectively prevented from becoming cloudy
(See FIG. 17). Further, in the rising portion 71b along the longitudinal direction, through holes 78 are formed at predetermined intervals along the longitudinal direction at positions close to the water surface of the ice making water in the water dish, and the through holes 78 also perform the movement of the ice making water. Works to be active. Furthermore,
The rising portions 71c and 71d provided at positions along the short direction (both edges along the swinging direction) make ice making close to the upright walls 72b and 72c of the water tray 72 when the swinging plate 71 swings. It works to move water actively.

Further, an upright piece 79 extending upward is formed at the rising portion 71b of the rocking plate 71, and the rocking plate 71 is tilted together with the water tray 72 during the deicing operation. The rocking plate 71 is separated from the water tray 72 by engaging with the ice making substrate 34, and the tilting posture thereof is kept constant.

Here, in order to move the ice making water efficiently by the rocking plate 71, the circumference of the rocking plate 71 is set to the ice making chamber 73.
Are slightly smaller than the internal dimensions of the bottom surface 72a, and the swing plate 71 is set to be swingable in the ice making chamber. Therefore, during the deicing operation, the upright pieces 79 are attached to the ice making substrate 3.
When the water tray 72 further tilts with respect to the rocking plate 71 stopped by engaging with the lock 4, between the rocking edge of the rocking plate 71 where the rising portion is not formed and the upright wall 72 d. Is narrowed. In this case, for example, if the swinging edge of the bottom plate 71a is linear, the gap between the upright wall 72d and the edge is narrow, so that the ice making water remaining in the water tray 72 has a surface tension. By the bottom plate 71
There is a possibility that the swelling may rise to the upper part of a and flow out from the upper end of the upright wall 72d. Therefore, in the swing plate 71 of the second embodiment, as shown in FIG. 14, a plurality of V-shaped notches 80 are formed in the swing edge of the bottom plate 71a along the longitudinal direction.
Are formed at predetermined intervals. That is, when the water tray 72 is tilted with respect to the rocking plate 71, the gap between the rocking edge of the bottom plate 71a and the upright wall 72d is set to be large in the notch 80, thereby rocking. The ice making water between the edge and the upright wall 72d falls from each notch 80 into the water dish, and can prevent the ice making water from flowing out from the upper end of the upright wall 72d.

As shown in FIG. 14, an inverted L-shaped engaging piece 81 is integrally formed on a rising portion 71c of the swinging plate 71, and its upper horizontal portion 81a extends outward beyond the upright wall 72b of the ice making chamber 73. Has been extended to. Further, a rocking motor RM is provided in the ice making machine corresponding to the position of the upper horizontal portion 81a, and a rocking member 82 is provided on the rotation shaft of the motor RM. As shown in FIG. 13, the swing member 82 includes a disc-shaped main body 82a and an upper horizontal portion 81a of the main body 82a.
Oscillating projection 82b eccentrically protruding from the surface in which the oscillating projection 82b faces. Therefore, if the rocking motor RM is rotated during the ice making operation, the pins 77, 7
The rocking plate 71 repeatedly swings up and down inside the ice making chamber 73 around the center 7 so that the ice making water can always be moved (see FIGS. 15 to 17). The through hole 78 of the swing plate 71
By the rising portions 71c and 71d, the ice making water in the ice making room 73 is given an active movement throughout.

[0027]

Next, the operation of the white turbidity preventing mechanism according to the second embodiment will be described. When the rocking motor RM is rotated during the ice making operation, the rocking projection 82b of the rocking member 82 rotated by the motor RM is engaged with the engaging piece 81 (upper horizontal portion 81a) provided on the rising portion 71c. At the same time, the swing plate 71 is lifted upward as shown in FIG.
When the swing projection 82b separates from the engagement piece 81, the swing plate 71 falls under its own weight and comes into contact with the bottom surface 72a of the ice making chamber 73, as shown in FIG. in this way,
The rocking plate 71 repeatedly rocks in the ice making water in the ice making chamber 73 during the ice making operation, so that the ice making water always moves. Moreover, since the through hole 78 is formed in the swinging plate 71, the ice making water passes through the through hole 78 with the swing of the swinging plate 71, and this causes the movement of the ice making water with the jet flow phenomenon. Be more active. Moreover, since the through holes 78 formed in the bottom plate 71 a are located between the adjacent ice making projections 36, the movement of the ice making water around each ice making projection 36 becomes active. Since the ice making water is always kept in the dynamic state, the ice blocks 70 formed on the ice making projections 36 are prevented from becoming cloudy, and transparent and clear ice blocks 70 are obtained. Further, rising portions 71c, 71 erected on the swinging plate 71.
As shown in FIG. 17, the movement of the ice making water in the vicinity of the corresponding upright walls 72b and 72c of the water tray 72 can be activated, and all the ice making projections 36 provided on the ice making board 34 are transparent. Thus, a clear ice block 70 can be formed.

When the ice making operation is completed and the operation is switched to the deicing operation and the water tray 72 is tilted, the rocking plate 71 is tilted thereafter because the upright pieces 79 are engaged with the ice making substrate 34. From the bottom surface 72a of the water tray 72 where
1 is located diagonally above. In this case, the swing plate 7
By providing the notch 80 at the swinging edge of the first, the ice making water remaining in the water tray 72 can be effectively prevented from flowing out from the upper end of the upright wall 72d to the outside.

In the illustrated embodiment, a configuration is employed in which a large number of inversely tapered ice-making projections are suspended from the ice-making substrate at predetermined intervals. However, as the ice-making projection, various kinds of members such as a round bar-shaped member and a pin-shaped member can be suitably used as long as it is a core member to be cooled that functions as a so-called ice-making part.

[0030]

[Effect of the Invention] As described above, according to the whitening prevention mechanism of the ice making machine of the present invention, the ice making water stored in the water dish is
In an ice maker in which an ice making projection cooled by an evaporating tube is immersed to form an ice block around the ice making projection, the ice making water is more actively used for the rocking operation of the rocking plate during the ice making operation. It is intended to always exercise. Therefore, the obtained ice block does not become cloudy, and there is an advantage that a transparent and clear ice block having a high commercial value is produced. In addition, the rocking plate not only functions to move the ice making water during the ice making operation, but also at the time of the de-icing operation, is tilted and stopped by an angle smaller than the tilt angle of the water tray, so that the de-icing operation is performed. The ice block that is released from the ice making projection and falls by its own weight,
The rocking plate also has a function of receiving it on the inclined surface and smoothly guiding it to the ice storage room. And the through hole in the rocking plate
The ice making water in the ice making room
Through the hole, which updates the movement of the ice making water with a jet phenomenon.
Active, effectively preventing the formation of cloudy ice.
You.

The through holes formed in the bottom plate of the rocking plate are positioned so as to face between the respective ice making projections provided on the ice making board, and rising portions are formed at both end edges along the rocking direction of the bottom plate. Thereby, the whole ice making water in the ice making room can be actively moved, and generation of cloudy ice can be effectively prevented. Further, since the notch is formed at the swing edge of the swing plate, when the water tray is tilted with respect to the swing plate,
It is possible to prevent the ice making water remaining in the water dish from flowing out to the outside by the rocking plate.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an ice making unit in which a white turbidity preventing mechanism according to a first embodiment of the present invention is adopted, in an exploded state;

FIG. 2 is a sectional view of a main part of the ice making unit shown in FIG.

FIG. 3 is a perspective view showing the assembled state of a water tray and a rocking plate provided inside the ice making chamber and a partially cut-out state of an ice making water discharge path.

FIG. 4 is a schematic longitudinal sectional view of an ice making machine employing the white turbidity preventing mechanism according to the first embodiment.

5 is a partially cutaway perspective view of the ice making machine shown in FIG.

FIG. 6 is a cross-sectional view of a main part of the ice making unit shown in FIG. 2, showing a state in which a rocking plate is raised during ice making.

FIG. 7 is a cross-sectional view of a main part of the ice making unit shown in FIG. 2, showing a state where the swing plate is lowered during ice making.

FIG. 8 is a cross-sectional view showing a state in which ice making is completed in the ice making unit, and also shows a positional relationship between a cam follower and a cam groove.

FIG. 9: The water tray starts tilting in the ice making unit,
It is a longitudinal cross-sectional view which shows the state in which a part of residual water used for ice making is discharged.

FIG. 10 is a vertical cross-sectional view showing a state in which deicing is performed in a state where the water tray in the ice making unit stops tilting, and the rocking plate is tilted and held slightly above the water tray.

FIG. 11 is a longitudinal sectional view showing a state in which the water tray returns to its original state and stops in the ice making unit, and replenishment of the remaining ice making water with new ice making water is started.

FIG. 12 is a schematic perspective view showing an ice making unit employing the white turbidity preventing mechanism according to the second embodiment in a partially disassembled state.

FIG. 13 is an exploded perspective view of a main part of a white turbidity preventing mechanism according to a second embodiment.

FIG. 14 is a schematic perspective view of a rocking plate according to a second embodiment.

15 is a cross-sectional view of a main part of the ice making unit shown in FIG. 12, showing a state immediately before a swing projection is engaged with an engagement piece of a swing plate.

16 is a cross-sectional view of a main part of the ice making unit shown in FIG. 12, showing a state in which a swinging projection is engaged with an engagement piece of the swinging plate and the swinging plate is raised.

FIG. 17 is a cross-sectional view of a main part of the ice making unit shown in FIG. 12, showing a state in which a swinging projection is separated from an engagement piece of the swinging plate and the swinging plate is lowered.

[Explanation of symbols]

16 compressor, 18 condenser, 22 evaporator tube, 24, 7
2 water trays 32, 73 ice making chamber, 34 ice making board, 36 ice making projections 44, 71 rocking plate, 46 through hole, 48 rocking support shaft, 5
0a: lever piece 56: cam follower, 60, AM: actuator motor 61: engagement pin, 62: engagement piece, 64, RM: swing motor, 70: ice block 71a: bottom plate , 71b: rising portion , 75: linking mechanism , 7
8 through hole, 80 notch, 81a upper horizontal portion, 82 swing member,
82a: swing projection

Claims (6)

(57) [Scope of request for utility model registration] 1. An evaporating pipe (22) connected to a refrigeration system including a compressor (16), a condenser (18), etc. An ice making board (3) having an ice making part (36) protruding and hanging at predetermined intervals.
4) a water tray (24) in which the ice making section (36) is immersed in ice making water in an ice making chamber (32) which is freely tiltable and is always horizontally defined, and the ice making section ( An ice making machine comprising a tilting mechanism (60, 56, 50a) for tilting the water tray (24) obliquely downward when the ice making water freezes around the 36) to form a required ice block (70). In the water tray (24), the inside of the ice making chamber (32) of the water tray (24) is swingable so as to be able to freely contact and separate from the bottom surface of the ice making chamber (32).
A through hole (46) that allows the flow of ice making water during the swing.
The rocking means (64, 6) provided with a rocking plate (44) perforated at a required interval is accommodated and arranged outside the water dish (24).
2) The rocking plate (44) is swung inside the ice making chamber (32) during the ice making operation under the engagement of the rocking plate (44) and the ice making in the ice making chamber (32). An opacity preventing mechanism for an ice maker, wherein water is moved to thereby prevent opacity of an ice block (70) formed around the ice making section (36). 2. The rocking means comprises a rocking motor (64) provided on the main body side of the ice making machine, and an engaging piece (62) provided on a rotating shaft of the motor (64) and projecting in a radial direction. And an engaging pin (61) provided at an open end of the rocking plate (44) and protruding horizontally, and the engaging piece (62) rotated by the rocking motor (64) is provided. The ice making according to claim 1, wherein the rocking motion is imparted to the rocking plate (44) about its rocking support shaft (48) by repeating the engagement and disengagement with the engaging pin (61). Prevention mechanism for white turbidity. 3. A compressor (16) and a condenser (18) are provided.
Tube (22) connected to the refrigerating system, and the evaporator tube
(22) is provided on the upper surface, and a number of ice making devices are provided on the lower surface.
Parts (36) projecting and hanging down at predetermined intervals (3)
4), tiltable and always arranged horizontally, and defined inside
The ice making part (36) is added to the ice making water in the ice making room (73).
Around the water dish (72) to be immersed and the ice making part (36)
The ice making water freezes to form the required ice block (70)
When the tilting mechanism for tilting movement said water tray (72) obliquely downward
(75, AM) in the ice making chamber (73) of the water tray (72).
Is arranged and swings freely to and away from the bottom surface of the ice making chamber (73).
A movable swing plate (71), wherein the swing plate (71) has a peripheral dimension that can be stored in the water dish.
The rocking plate (71) is attached to one edge of the bottom plate (71a).
The rising portion (7) pivotally supported on the water dish (72).
1b), the bottom plate (71a) and the rising portion (7
1b) is provided with a plurality of through holes (78) and a bottom plate.
The through hole (78) drilled in (71a) is immersed in ice making water
Positioned so as to face between the ice making projections (36).
It is, rocking means (82, disposed on the outside of the water tray (72) R
M) and the rocking plate (71) under the action of engagement with the ice making operation.
The rocking plate (71) is rocked inside the ice making chamber (73).
To move the ice making water in the ice making room (73), thereby forming an ice block around the ice making part (36).
(70) characterized in that it is configured to prevent cloudiness.
Cloudiness prevention mechanism of that ice machine. 4. A bottom plate (71) of said swing plate (71).
4. A mechanism for preventing white turbidity of an ice making machine according to claim 3 , wherein rising portions (71c, 71d) having a predetermined height are formed at both end portions along the swinging direction of (a). 5. A bottom plate (71) of said swing plate (71).
A plurality of cutouts (8)
5. The white turbidity preventing mechanism for an ice making machine according to claim 3, wherein 0) is formed. 6. The rocking means includes a rocking motor (RM) provided on the main body side of the ice making machine, a rocking member (82) provided on a rotating shaft of the motor (RM), Member (8
2) Oscillating projection (82b) eccentrically projecting on one side surface
And a horizontal portion (81a) provided at an open end of the rocking plate (71) and extending horizontally, and the rocking projection (82b) rotated by the rocking motor (RM) is provided. 6. The swinging plate according to claim 3 , wherein the swinging plate is provided with a swinging motion by repeating engagement and disengagement with the horizontal portion.
Ice machine cloudy prevention mechanism of the Rekani described.