KR101266212B1

KR101266212B1 - Material supply device for frozen-dessert making machine, and frozen-dessert making machine including the same

Info

Publication number: KR101266212B1
Application number: KR1020097015113A
Authority: KR
Inventors: 마사후미 도이; 노리아키 나카지마
Original assignee: 닛세이 가부시끼 가이샤
Priority date: 2007-04-19
Filing date: 2008-04-10
Publication date: 2013-05-21
Also published as: WO2008133190A2; KR20100014325A; CN101605464B; JP2010524429A; JP5302196B2; TW200847932A; CN101605464A; WO2008133190A3

Abstract

The floating member 41 floating near the liquid level L of the raw material M in the raw material tank 10 descends as the height of the raw material liquid level L decreases. This lowering motion is converted into the rotational motion of the outer cylinder part of the double cylinder part 51. By this rotary motion, the size of the communication hole which is the overlapping part of the distribution hole provided in the inner cylinder part of the double cylinder part 51, and the distribution hole provided in the outer cylinder part automatically changes. This change can be optimized by the shape of the distribution hole, and the ratio of the raw material M supplied from the raw material tank 10 to the cylinder portion 20 and the air supplied from the vertical pipe 61 to the cylinder portion 20. Can be made constant as needed.

Ice, raw material feeder, raw material tank, liquid level, floating member

Description

TECHNICAL SUPPLY DEVICE FOR FROZEN-DESSERT MAKING MACHINE, AND FROZEN-DESSERT MAKING MACHINE INCLUDING THE SAME

The present invention relates to a raw material supply device for a frozen dessert maker and a frozen dessert maker having the same. More specifically, the present invention relates to a raw material supply device for a frozen dessert maker that manufactures frozen desserts called soft ice cream or shake.

It is a schematic sectional drawing seen from the side surface which shows the conventional ice cream maker. 20 is a cross-sectional view illustrating the structure of a material supply valve used in a conventional ice cream maker. 21 is a cross sectional view of a material supply valve used in a conventional ice cream maker.

As a conventional frozen dessert maker which manufactures frozen desserts, such as a soft ice cream and a shake, there exists the machine of Unexamined-Japanese-Patent No. 2002-65171. As shown in Fig. 19, this frozen dessert maker is a raw material tank (tank) 1 for storing a liquid frozen dessert raw material M, and the frozen dessert raw material M is stirred and cooled together with air to obtain a frozen dessert S. The cylinder portion 2, the cooling portion for cooling the raw material tank 1 and the cylinder portion 2, and the raw material M can be provided in the raw material tank 1 to supply the cylinder portion 2 to the cylinder portion 2. The material supply valve 3 is provided.

In the technical field, "liquid ice raw material" is called "mix", and "material supply valve" is called "mix valve".

The raw material tank 1 has a raw material introduction passage 1a at the bottom. The raw material introduction path 1a is connected to the cylinder part 2, and the material supply valve 3 is attached to this raw material introduction path 1a. Moreover, an impeller (not shown) which rotates by a motor and agitates the raw material M in the raw material tank 1 is provided in the bottom part of the raw material tank 1.

Moreover, the cylinder part 2 is the spiral dasher 2a which stir-mixes the raw material M supplied with the inside of the cylinder part 2, and air, and the motor 2c which rotationally drives the dasher 2a. ) And an extracting section 2b for extracting the frozen dessert S produced in the cylinder section 2. The ice cream S in the cylinder part 2 is extracted by the opening of the extraction path of the extraction part 2b, and the rotation of the dasher.

The cooling unit is a refrigeration cycle mechanism in which an evaporator, a compressor, a condenser, an expansion valve, and the like are connected to each other through a conduit in a loop shape in the order mentioned.

The material supply valve 3 has a double structure of the outer cylinder 4 and the inner cylinder 5, as shown to FIG. 19-21.

The outer cylinder 4 is connected to the raw material introduction passage 1a in the raw material tank 1 and has a distribution hole 4a near the bottom of the raw material tank 1.

The inner cylinder 5 inserted from the upper opening of the outer cylinder 4 lowers the plurality of distribution holes 5a and 5b of different sizes (two in the figure) that can communicate with the distribution holes 4a of the outer cylinder 4. To have. The distribution hole 4a and the distribution hole 5a or 5b form a communication hole.

In addition, the outer cylinder 4 has cutout slots 4b and 4c for positioning at the upper end, and the inner cylinder 5 protruding the cutout grooves 4b and 4c for positioning at the upper end. piece) 5c. In addition, since the upper end of the material supply valve 3 opens, the material supply valve 3 also serves as an air inlet pipe through which air in the raw material tank 1 is introduced into the cylinder portion 2 together with the raw material M from the opening.

The material supply valve 3 having such a configuration can change the positional relationship between the outer cylinder 4 and the inner cylinder 5. The communication hole can be opened and closed by overlapping or shifting the positions of the distribution holes 4a, 5a, and 5b communicating with each other inside and outside of each cylinder.

In addition, the raw material tank 1 and the cylinder part 2 are selected by selecting one of the small distribution hole 5a and the large distribution hole 5b of the inner cylinder 5 so as to overlap with the distribution hole 4a of the outer cylinder 4. You can adjust the size of the communication hole communicating with). By adjusting the size of the communication hole, even if the height of the liquid surface L of the raw material M in the raw material tank 1 changes, the flow rate of the raw material M flowing into the cylinder portion 2 is adjusted within a predetermined range. As a result, the mixing ratio of the raw material M and the air in the cylinder portion 2 is adjusted within a predetermined range.

When extracting the frozen dessert S from the cylinder part 2, air and the raw material M from the raw material tank 1 are supplied to the cylinder part 2 via the material supply valve 3.

That is, when the size of the communication hole is made constant, as the liquid level L of the raw material M in the raw material tank 1 lowers, the pressure by the raw material which catches a communication hole falls. As a result, the flow volume of the raw material M which flows through the communication hole and flows into the cylinder part 2 falls. In addition, since the amount of the raw material M in the material supply valve 3 introduced into the cylinder part 2 also decreases, the mixing ratio of the raw material M and the air in the cylinder part 2 is within a predetermined range. The ratio of air becomes higher than that, and the quality of the ice cream S deviates from an allowable range. Therefore, as the raw material liquid level L decreases, the size of the communication hole is increased step by step so that the amount of the raw material M supplied into the cylinder portion 2 is adjusted so as not to change significantly. Thereby, the mixing ratio of the raw material M and air in the cylinder part 2 can be kept within a predetermined range.

Problems to be Solved by the Invention

However, in the conventional ice cream maker, the operator needed to monitor the liquid level of the raw material and manually select a distribution hole of an appropriate size of the inner cylinder according to the liquid level. That is, the operator needed to adjust the supply amount of the raw material from the raw material tank 1 to the cylinder part 2. Therefore, while the troublesome operation occurs, there is a concern about the hygiene surface by bringing the operator's hand closer to the raw material.

In addition, as described above, as the raw material liquid level L decreases, the size of the communication hole is increased stepwise to maintain the mixing ratio of the raw material M and air in the cylinder portion 2 within a predetermined range. . However, there are the following problems.

As shown in Fig. 22, the flow rate of the raw material M flowing into the material supply valve 3 decreases the liquid level L of the raw material M in the raw material tank 1 until the communication hole is changed to the next size. Deteriorates with it. As a result, the mixing ratio of air with respect to the raw material M supplied in the cylinder part 2 increases gradually. The timing for changing the size of the communication hole also varies depending on the operator. Therefore, as shown by the broken line in FIG. 22, when the timing shifts largely, the mixing ratio of the raw material M and air may deviate from within a predetermined range.

As described above, in the conventional ice maker, the mixing ratio of the raw material M and the air supplied into the cylinder portion 2 is changed by gradually changing the size of the communication hole and by manually changing the size of the communication hole. There is also a problem that it is not stable.

MEANS FOR SOLVING THE PROBLEMS [

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and the raw material supply device for an ice cream maker which can eliminate the valve operation by the operator according to the liquid level of the raw material, can simplify the operation and improve the hygiene surface, and the same. To provide a frozen dessert.

Thus, according to the present invention, there is provided a raw material tank for storing a liquid frozen confectionery raw material, a cylinder portion for stirring and cooling the frozen confectionery raw material with air, and a cooling unit for cooling the raw material tank and the cylinder portion. A raw material supply device which is provided in an ice cream maker and adjusts the supply amount of the frozen dessert raw material supplied from the raw material tank to the cylinder portion, the liquid level detecting means for automatically detecting the liquid level of the frozen dessert raw material in the raw material tank, and the detected liquid level height. And a supply amount adjusting means for adjusting the supply amount of the ice cream raw material to the cylinder portion and an air introduction means for introducing air into the cylinder portion, wherein the liquid level detecting means floats on the ice cream raw material liquid level in the raw material tank. Member, wherein the supply amount adjusting means includes an outer cylinder portion having a first distribution hole and a second distribution hole communicating with the first distribution hole. The double cylinder portion having an inner cylinder portion that is relatively rotatable to the outer cylinder portion, and the upper and lower displacements of the floating member to the double cylinder portion to rotate the outer cylinder portion and the inner cylinder portion relatively, the overlap of the first through hole and the second through hole Provided is a raw material supply device for an ice cream maker provided with a displacement transmission means for changing the size of the communication hole formed by the portion to adjust the supply amount of the raw material to the cylinder portion.

According to another aspect of the present invention, there is provided a raw material tank for storing a liquid frozen confectionery raw material, a cylinder portion for stirring and cooling the frozen confectionery raw material with air to cool the raw material tank and the cylinder portion. Provided is a frozen dessert maker equipped with a cooling unit and a raw material supply device for the frozen dessert maker.

EFFECTS OF THE INVENTION [

According to the present invention, since the liquid level of the raw material in the raw material tank is detected by the liquid level detecting means, and the supply amount of the raw material to the cylinder portion can be adjusted in conjunction with the liquid level height detected by the supply amount adjusting means. The desired ratio of the frozen dessert can be produced by automatically adjusting the mixing ratio of the raw material and air to within a predetermined range. As a result, a troublesome operation such that the operator monitors the liquid level of the raw material and manually adjusts the supply amount of the raw material to the cylinder portion in accordance with the liquid level becomes unnecessary. In addition, the operator does not have to put his hand in the tank to operate the valve, thereby improving the sanitary aspect.

Further, the liquid level detecting means is a floating member floating on the raw material liquid level in the raw material tank, and can be manufactured at low cost by simplifying the structure without using electrical means.

Moreover, according to the supply amount adjusting means, a mechanism for mechanically transmitting the displacement of the floating member in the raw material tank to the double cylinder portion by the displacement transmission means can constitute a mechanism for relatively rotating the outer cylinder portion and the inner cylinder portion. That is, the movement of the floating member displaced in accordance with the displacement of the liquid level of the raw material in the raw material tank can be used as the power, without using a power source such as a motor that relatively rotates the outer cylindrical portion and the inner cylindrical portion. Therefore, the supply amount adjusting means can be produced at low cost.

The liquid level detecting means and the supply amount adjusting means can adopt various types of the following types.

BRIEF DESCRIPTION OF THE DRAWINGS It is schematic sectional drawing seen from the side surface which shows Embodiment 1 of the ice cream maker which concerns on this invention.

FIG. 2 is a side view showing a raw material supply device in which a liquid level detecting means, a supply amount adjusting means, and an air introduction means in the first embodiment are assembled into a unit.

3 is an exploded view showing a state in which the raw material supply device according to the first embodiment is disassembled.

4 (a) and 4 (b) are explanatory views showing a state where the size of the communication hole in the first embodiment is small.

5 (a) and 5 (b) are explanatory diagrams showing a state in which the size of the communication hole in the first embodiment is large.

FIG. 6 is a side view illustrating a state in which the floating member in the first embodiment is lowered. FIG.

7 (a) and 7 (b) are explanatory diagrams showing a state in which a raw material is supplied to the cylinder portion in the first embodiment.

8 (a) and 8 (b) are explanatory diagrams showing a state where raw materials and air are supplied to the cylinder portion in the first embodiment.

FIG. 9 is a diagram illustrating a relationship between a liquid level drop of a raw material in a raw material tank and a mixing ratio of a raw material and air supplied to a cylinder in the ice maker according to the first embodiment. FIG.

10 (a) to 10 (f) are diagrams showing Modification Example 1 of Embodiment 1. FIG.

11 is a diagram showing a modification 2 of the first embodiment.

12 is a diagram showing a modification 3 of the first embodiment.

It is a side view which shows the raw material supply apparatus in the modified example 3 of Embodiment 1. FIG.

FIG. 14: is explanatory drawing which shows the raw material supply apparatus of Embodiment 2. FIG.

FIG. 15 is a conceptual view illustrating a second embodiment in which the first flow hole rotates and the communication hole gradually increases as the pin descends.

16 is an explanatory diagram showing a raw material supply device according to the third embodiment.

17 is an explanatory diagram showing a raw material supply device according to the fifth embodiment.

18 is a conceptual view illustrating a fifth embodiment in which the outer cylinder portion rotates and the communication hole gradually increases as the pin descends.

It is a schematic sectional drawing seen from the side surface which shows the conventional ice cream maker.

20 is a cross-sectional view illustrating the structure of the material supply valve of FIG. 19.

21 is a cross sectional view of the material supply valve of FIG. 19.

It is a figure explaining the relationship between the liquid level drop of the raw material in a raw material tank, and the mixing ratio of air with respect to the quantity of the raw material and air supplied to a cylinder part in the conventional ice cream maker.

The raw material supply apparatus for frozen dessert manufacturing apparatus which concerns on this invention is a raw material tank which stores a liquid frozen dessert raw material, the cylinder part for stirring and cooling a frozen dessert raw material with air, and makes it into a frozen dessert, A raw material supply device which is installed in an ice cream maker provided with a cooling unit for cooling the raw material tank and the cylinder part, and adjusts the supply amount of the frozen dessert raw material supplied from the raw material tank to the cylinder part, wherein the liquid level of the frozen dessert raw material in the raw material tank is automatically adjusted. And a liquid level detecting means for detecting the liquid level, a supply amount adjusting means for adjusting the supply amount of the frozen confectionery raw material to the cylinder portion, and an air introducing means for introducing air into the cylinder portion. Is a floating member which floats on the surface of the ice cream raw material in the raw material tank, and the supply amount adjusting means has an outer cylinder having a first distribution hole. A double cylinder portion having an inner cylinder portion that is relatively rotatable to the outer cylinder portion having a second flow hole communicating with the first through hole, and transferring the up and down displacement of the floating member to the double cylinder portion to relatively rotate the outer cylinder portion and the inner cylinder portion; And a displacement transmission means for adjusting the supply amount of the raw material to the cylinder portion by changing the size of the communication hole formed by the overlapping portion of the first through hole and the second through hole.

Ice cream maker according to the present invention by stirring and mixing the raw material and air at a mixing ratio within a predetermined range under cooling, to produce a frozen dessert, such as soft ice cream or a drink called a shake (shake) in which fine bubbles are dispersed Ice cream maker.

EMBODIMENT OF THE INVENTION Hereinafter, various embodiments of the frozen dessert manufacturing machine raw material supply apparatus which concerns on this invention, and the frozen dessert manufacturing machine provided with it are demonstrated, referring drawings. The present invention is not limited to the following embodiments.

(Embodiment Mode 1)

BRIEF DESCRIPTION OF THE DRAWINGS It is schematic sectional drawing seen from the side surface which shows Embodiment 1 of the raw material supply apparatus which concerns on this invention, and the frozen dessert manufacturing machine using the same.

This frozen dessert maker has a raw material tank (10) for storing a liquid frozen dessert raw material (M), a cylinder part (20) for stirring and cooling the frozen dessert raw material (M) with air, and a raw material tank (10). ) And a cooling unit for cooling the cylinder 20, and a raw material supply device F1 for adjusting the supply amount of the ice-making raw material M supplied from the raw material tank 10 to the cylinder 20. do.

The raw material tank 10 has the upper opening part which opens and closes by the cover member 10a, has the raw material introduction passage 11 in the bottom part, and the raw material introduction passage 11 is connected to the cylinder part 20. As shown in FIG. Moreover, an impeller (not shown) which rotates by a motor and agitates the raw material M in the raw material tank 10 on the bottom face of the bottom part of the raw material tank 10 is provided.

Moreover, the cylinder part 20 has the dasher 21 which has the spiral stirring blade which stir-mixes the raw material M supplied inside, and air, and the motor which rotationally drives the dasher 21 ( 22) and an extraction unit 23 for extracting the frozen dessert (S) manufactured therein. The ice cream S in the cylinder part 20 is extracted by opening the extraction path of the extraction part 23 in the state in which the dasher 21 rotated.

In the present embodiment, the cooling unit is not limited to requiring a specific configuration, and for example, an evaporator, a compressor, a condenser, and an expansion valve disposed around the raw material tank 10 and the cylinder portion 20. Refrigeration cycle mechanism).

In addition, the raw material tank 10, the cylinder part 20, and the cooling part can be set as the structure similar to the conventional ice cream maker demonstrated by FIG.

The raw material supply device F1 installed in the raw material tank 10 includes liquid level detecting means 40 for automatically detecting the liquid level L of the raw material M in the tank, and the raw material M in association with the detected liquid level height. Supply amount adjustment means 50 which adjusts the supply amount to the cylinder part 20, and the air introduction means 60 which introduces air into the cylinder part 20 are provided.

FIG. 2 is a side view showing the raw material supply device F1 in which the liquid level detecting means 40, the supply amount adjusting means 50, and the air introducing means 60 are assembled and united. 3 is an exploded view showing a state in which the raw material supply device F1 is disassembled.

1 to 3, the air introduction means 60 has an outside air inlet 61a at the upper portion, passes through the inside of the raw material tank 10 from the outside air inlet 61a, and enters the cylinder portion 20. As shown in FIG. It is the vertical tube 61 which communicated with to. The lower end of this vertical pipe 61 is inserted into the raw material introduction passage 11 of the raw material tank 10. The vertical pipe 61 has a concave circumferential groove 61b for fitting the O-ring 9 and an outer flange contacting the bottom of the raw material tank 10 slightly above the concave circumferential groove 61b ( flange 61c. The O-ring 9 prevents the raw material M in the raw material tank 10 from being supplied to the cylinder portion 20 from other than the communication holes described later.

The liquid level detecting means 40 is a floating member 41 floating on the raw material liquid level L in the raw material tank 10. The floating member 41 has a ring shape having a hole through which the vertical tube 61 is inserted, and is fitted into the round container-shaped floating member main body 42 and the floating member main body 42 to open the upper opening portion. The cover member 43 is covered.

In addition, the floating member main body 42 has a cylindrical portion 42a for inserting the vertical tube 61 at the center thereof, and has a concave portion 42b formed at the bottom in a direction crossing the cylindrical portion 42a. have.

Moreover, a pair of 1st horizontal shaft 156a is provided on the same axis center in the upper position of the recessed part 42b in the outer peripheral surface of the floating member main body 42. As shown in FIG. The pair of first horizontal shafts 156a is a shaft for swingably mounting the first arm 157 of the link mechanism 155 described later to the floating member 41.

In addition, the lid member 43 has a short cylindrical portion 43a and an outer circumferential wall portion 43b. The short cylindrical portion 43a inserts the vertical tube 61 into the center of the lid member 43 and fits into the cylindrical portion 42a. The outer circumferential wall portion 43b is vertically installed along the outer circumferential edge of the lid member 43 and fitted to the outer circumferential upper edge of the floating member main body 42.

As shown in Figs. 1 and 2, the supply amount adjusting means 50 includes a double cylinder portion 51 and a link mechanism 155 that is a displacement transmission means.

As shown in FIGS. 1 to 3, the double cylinder portion 51 includes an inner cylinder portion 53 having a second flow hole 53a and a first flow hole 52a that can communicate with the second flow hole 53a. The branch has an outer cylinder portion 52. The outer cylinder part 52 is fitted so that the inner cylinder part 53 can rotate relatively to the outer cylinder part 52.

One end of the double cylinder portion 51 is opened and communicates with the vertical pipe 61 to extend in the horizontal direction near the bottom in the raw material tank 10. In addition, the other end of the double cylinder part 51 is closed.

In more detail, one end of the inner cylinder portion 53 is connected to the vertical pipe 61 and the other end thereof is opened. In addition, the second cylindrical hole 53a is disposed in the lower portion of the inner cylinder portion 53, and has a protrusion 53b in the axial center direction on the upper outer circumferential surface thereof.

On the other hand, the outer cylinder portion 52 is fitted into the inner cylinder portion 53 from the open end side, and the other end is closed, and the second horizontal shaft 156b is integrally provided at the closed end of the outer cylinder portion 52. have.

The second horizontal shaft 156b attaches a second arm 158 of the link mechanism 155 described later to the outer cylinder portion 52, and transmits the transmission force from the link mechanism 155 to the outer cylinder portion (155). 52) axis for delivery. Therefore, the second horizontal axis 156b is not formed as a round axis but is formed in an isosceles triangular column shape, for example.

In addition, the outer cylinder portion 52 has a first distribution hole 52a at the lower portion so as to be able to communicate with the second distribution hole 53a of the inner cylinder portion 53, and on the inner circumferential surface opposite to the first distribution hole 52a. It has the recessed part 52b. The recessed part 52b receives the said protrusion part 53b of the inner cylinder part 53, and is formed in the circumferential direction in a predetermined range.

As for the double cylinder part 51 comprised in this way, the outer cylinder part 52 is rotatably fitted in the outer side of the inner cylinder part 53 without a clearance, and rotatably.

The supporting rod 159 extends in the horizontal direction from the outer circumferential surface of the vertical pipe 61 on the opposite side of the vertical pipe 61 from the second horizontal axis 156b. Further, at the end of the support rod 159, a sub second horizontal shaft 1156b having an axis center coinciding with the axis center of the second horizontal axis 156b is provided. This sub-horizontal horizontal axis 1156b is an axis for oscillatingly supporting the second arm 158 of the link mechanism 155.

FIG. 4 is an explanatory view showing a state where the size of the communication hole in the present embodiment is small, and FIG. 5 is an explanatory diagram showing a state where the size of the communication hole in the present embodiment is large.

As shown in Fig. 4, the second through hole 53a of the inner cylinder portion 53 is formed in a long hole shape extending in the axial direction, and the first through hole 52a of the outer cylinder portion 52 has a substantially triangular shape. It is formed. The double cylinder part 51 comprised in this way has the communication hole 51a by which the 1st flow hole 52a of the outer cylinder part 52 and the 2nd flow hole 53a of the inner cylinder part 53 overlapped.

According to this double cylinder portion 51, the outer cylinder portion 52 rotates in the direction of the arrow A from the state shown in FIG. 4, so that the position of the first through hole 52a moves, and as shown in FIG. The size of 51a) is changed. At this time, the movement of the first distribution hole 52a with respect to the second distribution hole 53a is regulated by the circumferential end surface of the recess 52b of the outer cylinder portion 52 contacting the protruding portion 53b of the inner cylinder portion 53. do.

As shown in FIG. 1, in the state where the liquid level L of the raw material M in the raw material tank 10 is high, the positional relationship of the 1st flow hole 52a and the 2nd flow hole 53a is shown in FIG. As shown, the size of the communication hole 51a becomes small. On the other hand, in a state where the liquid level drops to the vicinity of the bottom of the raw material tank, as shown in FIG. 5, the size of the communication hole 51a becomes large.

Therefore, the inner cylinder portion 53 is provided such that the positional relationship between the first through hole 52a and the second through hole 53a and the size of the communication hole 51a according to the height of the raw material liquid surface L are as described above. The shape and size of the second flow hole 53a and the width of the protruding portion 53b, the formation position, shape and size of the first flow hole 52a in the outer cylinder portion 52, and the size of the recess 52b. Etc. are considered.

1 to 3, in the supply amount adjusting means 50, the link mechanism 155, which is a displacement transmitting means, moves up and down the movement along the height of the raw material liquid surface L of the floating member 1 in the outer cylinder portion ( 52) and the inner cylinder portion 53 are converted into rotational movements around the horizontal axis relative to each other, thereby changing the size of the communication hole 51a (see FIGS. 4 and 5) of the double cylinder portion 51 as described above. . That is, the link mechanism 155 is comprised so that the magnitude | size of the communication hole 51a may be changed as mentioned above so that the supply amount of the raw material M to the cylinder part 20 may be adjusted.

As shown in FIG. 3, the link mechanism 155 includes a first arm 157 having a pivot engaging portion at both ends and a second arm 158 having a pivot engaging portion at both ends. The pivot coupler of one end of the first arm 157 and the pivot coupler of one end of the second arm 158 pivotally engage with each other. The pivot coupler at the other end of the first arm 157 pivotally couples to the first horizontal axis 156a. The pivot engaging portion at the other end of the second arm 158 is rotatably mounted on the second horizontal shaft 156b to allow the outer cylinder portion 52 to rotate.

The first arm 157 is formed in a substantially Y shape having a bifurcated portion 157a on one end side, and has a bent portion 157b bent at a right angle on the other end side. A shaft hole 157c is formed at both ends of the bifurcated portion 157a as a pivot engaging portion for relatively rotatably inserting the pair of first horizontal shafts 156a. Moreover, the axial pivot coupling part 156c is integrally formed in the edge part of the bending part 157b.

Similar to the first arm 157, the second arm 158 is formed in a substantially Y shape having a bifurcated portion 158a at one end thereof, and has a pair of parallel to a portion opposite to the bifurcated portion 158a. It has a straight part 158b.

At one end of the bifurcation 158a, a triangular hole 158c as a pivot engaging portion fitted to the second horizontal axis 156b of an isosceles triangular columnar shape is formed, and the bifurcation 158a is formed. At the other end, a shaft hole 158d as a pivot engaging portion for rotatably inserting the sub second horizontal shaft 1156b with respect to the other end of the bifurcated portion 158a is formed. The bifurcated portion 158a prevents the outer cylinder portion 52 from being pulled out of the inner cylinder portion 53.

Further, at the ends of the pair of parallel straight portions 158b, a hole-shaped pivot engaging portion 158e for inserting the axial pivot engaging portion 156c rotatably with respect to the ends of the parallel straight portions 158b is provided. It is formed, and a pair of parallel linear part 158b is fitted in the state which pivotally supported the pivot engaging part 156c of the 1st arm 157. As shown in FIG. Moreover, as long as it deepens toward the vertically upward direction with respect to the parallel linear part 158b from the pivot engaging part 158e in the edge part opposing surface in which the pivot engaging part 158e in the pair of parallel linear part 158b was provided. A pair of tapered slots 158f are formed. The pivot engaging portion 156c is moved along the respective tapered grooves 158f, and the pair of parallel straight portions 158b is widened by elastic deformation, thereby moving the pivot engaging portion 156c to the pivot engaging portion. It can be easily inserted into 158e.

According to the link mechanism 155 comprised in this way, as shown to FIG. 1 and FIG. 2, when the raw material M is filled to the upper part in the raw material tank 10, and the floating member 41 is in an upper position, it is the 1st agent The two arms 157 and 158 are bent in an L-shape to show a posture connected to each other.

When the raw material M in the raw material tank 10 is supplied to the cylinder part 20, the liquid level L will fall gradually. Therefore, as shown in FIG. 6, when the floating member 41 descends gradually, the 2nd arm 158 oscillates downward (arrow A direction) with respect to the 2nd horizontal axis 156b, and the 1st arm 157 ) And the second arm 158 approach each other.

As the second arm 158 swings downward, the outer cylinder portion 52 of the double cylinder portion 51 connected to the second arm 158 also rotates in the direction of the arrow A, and the first distribution hole 52a is rotated in the second distribution hole. It moves from the state of FIG. 4 to the state of FIG. 5 with respect to 53a, and the size of the communication hole 51a becomes gradually large. 6 is a side view which shows the state which the floating member in the present embodiment dropped.

6, the bent portion 157b of the link mechanism 155 prevents the first arm 157 and the second arm 158 from interfering with each other, and the concave portion 42b is formed by the floating member ( By forming a gap in order to prevent the bottom surface of 41 from contacting the double cylinder portion 51, the floating member 41 can be lowered from the bottom to the bottom of the raw material tank 10.

Therefore, in this embodiment, the rocking stroke of the 2nd arm 158 becomes large compared with the case where the bottom face of the floating member 41 is flat, and also the range which the rotatable part of the outer cylinder part 52 can rotate is widened. As a result, since the long movement stroke of the 1st flow hole 52a with respect to the 2nd flow hole 53a can be ensured, the amount of change of the size of the communication hole 51a accompanying a liquid level drop does not become sudden, but is smooth. It is easy to do.

In addition, since the floating member 41 can descend from the bottom part to the bottom part of the raw material tank 10, and the communication hole 51a is arrange | positioned under the double cylinder part 51, the raw material in the raw material tank 10 The raw material can be supplied to the cylinder portion 20 even if the liquid level L of the liquid crystal drops to the vicinity of the bottom portion.

The raw material supply apparatus F1 comprised in this way can be formed with plastics, such as polyacetal, or metals, such as stainless steel, for example.

Next, the state where the raw material is supplied to the cylinder part 20 from the raw material tank 10 in the ice-cream maker of Embodiment 1 is demonstrated.

FIG. 7: is explanatory drawing which shows the state in which raw material is supplied to the cylinder part in Embodiment 1, and FIG. 8 is explanatory drawing which shows the state in which raw material and air are supplied to the cylinder part in Embodiment 1. FIG.

In the ice-cream maker shown in FIG. 1, in the cylinder part 20, when a raw material and air are mixed in cooling within the predetermined range, for example, in the case of soft ice cream, raw material and air are 7: 3 by volume ratio. Frozen fruit (S) prepared by stirring and mixing at a rate of about is stored. In addition, in the ice-cream maker shown in FIG. 1, when the raw material M is stored in the raw material tank 10 to the vicinity of an upper limit height, as shown to FIG. 7 (a), in the vertical pipe 61, a raw material tank The raw material M flows in to the same height as the height of the liquid level L in (10). At this time, the communication hole 51a formed by overlapping the first through hole 52a of the outer cylinder part 52 and the second through hole 53a of the inner cylinder part 53 in the double cylinder part 51 is small as shown in FIG. Has a size.

The ice cream S of a predetermined amount is extracted by opening the extraction path of the extraction part 23 and rotating the dasher 21 in the cylinder part 20. At this time, as shown in FIG. 7B, since the cylinder portion 20 becomes negative pressure, the raw material M in the vertical pipe 61 first flows into the cylinder portion 20 by suction action due to negative pressure. Goes. In connection with this, the liquid level L1 of the raw material M in the vertical pipe 61 falls.

When the liquid surface L1 of the raw material M in the vertical pipe 61 descends, the height of the liquid level L of the raw material M in the raw material tank 10 and the liquid level of the raw material M in the vertical pipe 61. From the relationship between the difference in height of L and the intrinsic specific gravity of the raw material M, the raw material in the raw material tank 10 is more than the pressure applied to the communication hole 51a by the raw material M in the double cylinder part 51. By M), the pressure applied to the communication hole 51a gradually increases. As a result, the raw material M in the raw material tank 10 flows into the communication hole 51a of the double cylinder part 51 (refer FIG. 8 (a)).

When the ice cream S is further extracted, the liquid surface L1 of the raw material M in the vertical pipe 61 goes down to reach the inside of the cylinder portion 20. In connection with this, as shown to Fig.8 (a), the raw material M which flows through the communication hole 51a from the raw material tank 10, and the air in the vertical pipe 61 flow in the cylinder part 20, and a cylinder part is carried out. In 20, the raw material M and air are stirred and mixed under cooling to form a frozen dessert. At this time, the air introduced into the cylinder portion 20 is taken into the ice during mixing by the raw material (M).

When the extraction of the frozen dessert S is completed, as shown in FIG. 8B, the raw material M and the air do not flow into the cylinder portion 20, and thus, the raw material M in the raw material tank 10 is removed. The raw material flows into the vertical pipe 61 until it becomes the same level as the liquid level L. FIG.

During the extraction of the ice cream, if the liquid level L of the raw material M in the raw material tank 10 drops, the floating member 41 shown in FIG. 1 also drops. As the floating member 41 descends, the outer cylinder portion 52 rotates at a rotational amount corresponding to the swing amount of the second arm 158 by the operation of the link mechanism 155 as described above, so that the communication hole 51a is rotated. It grows big continuously.

Therefore, even if the pressure applied to the communication hole 51a by the raw material M in the raw material tank 10 falls gradually by the raw material liquid level L in the raw material tank 10 continuously, the communication hole 51a will fall. The flow rate of the raw material M passing through) does not depart from the predetermined range. As a result, the mixing ratio of the raw material M and air which flows into the cylinder part 20 does not deviate from a predetermined range.

In this way, by extracting the ice cream S from the cylinder portion 20 a plurality of times by a predetermined amount, the height of the liquid surface L of the raw material M in the raw material tank 10 gradually decreases. At the time of the extraction stop of the frozen dessert S in the meantime, as described using FIG. However, each time the frozen dessert S is taken out, the height of the raw material liquid surface L1 in the vertical pipe 61 decreases. That is, each time the frozen dessert S is extracted, the amount of the raw material M in the vertical pipe 61 introduced into the cylinder 20 during the frozen dessert is reduced.

The raw material supply apparatus which concerns on this invention also considers the quantity of the raw material M in this vertical pipe 61. As shown in FIG. That is, in the raw material supply device, the height of the raw material liquid surface L in the raw material tank 10 and the height of the raw material liquid surface L1 in the vertical pipe 61 when the frozen fruit S is not extracted are frozen fruit extraction. Even if it differs at every start, it is designed with the magnitude | size of the communication hole 51a by which the raw material M and air become a mixing ratio in a predetermined range, and its change amount. Thereby, the flow volume of the raw material M which flows into the double cylinder part 51 can be automatically adjusted to the flow volume which supplies the raw material M and air in an appropriate ratio in the cylinder part 20. As shown in FIG.

In the raw material supply device and the frozen dessert manufacturing machine using the same according to the present invention, the raw material M in the raw material tank 10 is reduced by extracting the frozen fruit S in this way, and the raw material liquid surface L communicates with the communication hole 51a. If lowered, the raw material M is not supplied into the cylinder part 20. Therefore, when the liquid level L is above the communication hole 51a, for example, when the double cylinder part 51 is exposed above the liquid level L in the air, the operator may enter the raw material M in the raw material tank 10. It is desirable to disseminate. In addition, by replenishing the raw material M, the floating member 41 is raised, so that the supply amount adjusting means 50 operates in the opposite direction to the lowering of the floating member 41 and thus the size of the communication hole 51a. Returns from the large state shown in FIG. 5 to the small state shown in FIG.

In general, in this kind of ice cream maker, the cooling section is operated in a heating cycle opposite to that of the refrigeration cycle, thereby heating the raw material tank 10 and the cylinder section 20 to a temperature at which the raw material M does not deteriorate. (M) and the frozen dessert (S) can be sterilized by heat. At this time, for example, a shield cylinder having an outer collar at an upper end thereof is inserted into the vertical tube 61 to block communication between the double cylinder portion 51 and the vertical tube 61. This blockage is carried out in the raw material tank 10 through the communication hole 51a even if a space is formed in the cylinder part 20 by melting the frozen fruit S in the cylinder part 20 to melt. This is for preventing the raw material M from flowing into the cylinder portion 20.

According to the raw material supply apparatus F1 of Embodiment 1 comprised in this way, the following effects are acquired.

(Effect 1-1)

The height of the liquid level L of the raw material M in the raw material tank 10 is detected by the floating member 41, and the link mechanism 155 interlocks with the height of the detected liquid level L. In addition, the outer cylinder portion 52 is rotated with respect to the inner cylinder portion 53 to adjust the size of the communication hole 51a, thereby adjusting the supply amount of the raw material M to the cylinder portion 20. Thereby, the mixing ratio of the raw material M and air in the cylinder part 20 is automatically adjusted in predetermined range, and the desired ice cream can be manufactured.

In addition, the operator monitors the height of the liquid level L of the raw material M, and manually adjusts the supply amount of the raw material M to the cylinder portion 20 according to the height of the liquid level L. No complicated operation is necessary. In addition, the operator does not need to put his hand into the raw material tank 10 in order to operate the valve, thereby improving the hygienic aspect.

Moreover, as shown in FIG. 9, since the size of the communication hole changes automatically and continuously largely as the liquid level L of the raw material M in the raw material tank 10 falls, it flows in into the double cylinder part 51 The flow rate of the raw material M is stable. Therefore, the mixing ratio of the raw material M and air supplied into the cylinder part 2 is prevented from deviating from within a predetermined range. In addition, in FIG. 9, although the graph line which shows a mixing ratio is shown by the straight line of a fixed ratio in order to make description easy, there exists no problem even if it exists in a predetermined range except a straight line.

(Effect 1-2)

Moreover, since the liquid level detection means is a floating member 41 which floats on the raw material liquid level L in the raw material tank 10, the structure can be simplified and manufactured at low cost without using electrical means.

Moreover, as a supply amount adjusting means, the displacement of the floating member 41 in the raw material tank 10 is mechanically transmitted to the double cylinder part 51 via a displacement transmission means, and the outer cylinder part 52 and the inner cylinder part 53 are made relative. By using a mechanism for rotating the cylinder, a power source called a motor that relatively rotates the outer cylinder portion 52 and the inner cylinder portion 53 is not used. That is, as the supply amount adjusting means, it is possible to constitute a mechanism that can use as a power the movement of the floating member 41 that displaces with the displacement of the height of the raw material liquid surface L in the raw material tank 10. Therefore, the supply amount adjusting means can be manufactured at low cost by simplifying the structure without using the electric means.

(Effect 1-3)

Moreover, since the displacement transmission means is the link mechanism 155, the vertical displacement of the floating member 41 can be smoothly converted into the force in the rotational direction, and can be transmitted to the outer cylinder portion 52 reliably.

In addition, the vertical pipe 61 is inserted into the hole of the floating member 41 to freely float the floating member 41 on the raw material liquid surface L, and the first horizontal axis 156a is approximately the second horizontal axis 156b. It can be kept in the upper position immediately. Thereby, the link mechanism 155 can be operated so that the outer cylinder part 52 can rotate with high precision by the rotation amount according to the up-down displacement of the raw material liquid surface L. As shown in FIG.

(Effect 1-4)

By using the vertical pipe 61 as air introduction means, it is not necessary to provide a means for introducing air into the cylinder portion 20 separately, and the structure of the raw material supply device F1 can be simplified.

(Effect 1-5)

Since the communication hole 51a is arrange | positioned under the double cylinder part 51, even if the liquid surface L of the raw material in the raw material tank 10 falls to the vicinity of a bottom part, a raw material can be supplied to a cylinder part stably.

Embodiment 1 can be changed as follows.

(Modification 1 of Embodiment 1)

10 is a diagram showing a modification 1 of the first embodiment. The first and second flow holes of the double cylinder portion according to the first embodiment may be, for example, shaped as shown in Figs. 10A to 10F.

10 (a) shows a case where both the first through hole 152a of the outer cylinder portion 152 and the second through hole 153a of the inner cylinder portion 153 are the same isosceles triangles, and each triangle is disposed in the same direction. To illustrate. In addition, the shape of each distribution hole can be suitably changed into an equilateral triangle, a right triangle, etc. besides an isosceles triangle.

FIG. 10B illustrates an example in which the first through hole 252a of the outer cylinder portion 252 and the second through hole 253a of the inner cylinder portion 253 are the same isosceles triangles, and each triangle is disposed in the reverse direction. Doing.

FIG. 10C illustrates a case in which the first through hole 352a of the outer cylinder portion 352 and the second through hole 353a of the inner cylinder portion 353 have the same oblong shape extending in the circumferential direction. Doing. In addition, the shape of each flow hole can be appropriately changed into an elliptical shape, a droplet shape, etc., in addition to the oval shape.

FIG. 10 (d) illustrates a case where both the first through hole 452a of the outer cylinder portion 452 and the second through hole 453a of the inner cylinder portion 453 are the same square. In addition, the shape of each flow hole can be suitably changed into polygons, such as a rectangle, a rhombus, a pentagon, and a hexagon, in addition to a square.

FIG. 10 (e) illustrates a case where both the first through hole 552a of the outer cylinder portion 552 and the second through hole 553a of the inner cylinder portion 553 are the same circular shape.

10 (f) is the same long hole in which both the first through hole 652a of the outer cylinder portion 652 and the second through hole 653a of the inner cylinder portion 653 extend in the circumferential direction, and two in the barrel direction. The case where it is arranged side by side is illustrated. In addition, the number of each distribution hole can be suitably changed into three or more, and the size of each hole may differ.

In addition, although not shown in figure, the 1st and 2nd flow hole may be arrange | positioned at the cross section of a double cylinder part. In this case, the end portion of the inner cylinder portion is closed similarly to the outer cylinder portion, and the first and second flow holes are formed around the second horizontal axis in the closed inner cylinder portion and the end wall of the outer cylinder portion. The shape of the first and second distribution holes can be arcuate in addition to the triangles, squares, circles, and the like described above.

The shape and combination of the first and second flow holes are not limited to the above, and the first and second flow holes may be combined in different shapes and numbers.

(Modification 2 of Embodiment 1)

11 is a diagram showing a modification 2 of the first embodiment. As shown in FIG. 11, the 2nd horizontal axis 156b of the link mechanism in Embodiment 1 may be provided in the inner cylinder part 753 of a double cylinder part. In this case, one end of the outer cylinder portion 752 having both open ends is connected in communication with the vertical tube. Moreover, the inner cylinder part 753 closes one end to the end wall 753b of the outer diameter larger than the inner diameter of the outer cylinder part 752, and integrally forms the 2nd horizontal axis 156b in this end wall 753b. Then, the open end of the inner cylinder portion 753 is inserted into the outer cylinder portion 752 and mounted. Further, a first through hole 752a and a second through hole 753a are formed below the outer cylinder portion 752 and the inner cylinder portion 753. Moreover, in order to define the rotation range of the inner cylinder part 753, the recessed part and protrusion part which were demonstrated using FIG. 3 were provided in the opening side of the outer cylinder part 752, and the end wall 753b side of the inner cylinder part 753. It is desirable to.

(Modification 3 of Embodiment 1)

12 is a diagram showing a modification 3 of the first embodiment. It is a side view which shows the raw material supply apparatus in the modified example 3 of Embodiment 1. FIG.

As shown in FIG. 12, in the link mechanism, a plurality of pairs of the first horizontal axes 156a may be provided in the vertical direction. In this way, as shown in FIG. 13, the first arm 157 is pivoted by selecting a pair of first horizontal axes 156a from among the plurality of first horizontal axes 156a having different vertical positions, thereby causing injury. The height of the shaft hole 157c (see FIG. 3) with respect to the member 41 can be changed, and the mounting angle formed by the first arm 157 and the second arm 158 in the link mechanism 155 can be changed. have.

As a result, even if the floating member 41 is in the same height position, the size of the communication hole of the double cylinder part 51 can be changed by the position of the selected 1st horizontal axis 156a. For example, when the viscosity of the raw material M to be used is high, the correspondence of slightly increasing the size of the communicating holes can be achieved than when the viscosity is low. In addition, by the position of the selected first horizontal axis 156a, it is possible to change the amount of change in the size of the communication hole with respect to the amount of falling of the floating member.

(Modification 4 of Embodiment 1)

The floating member 41 shown in FIG. 1, FIG. 2 etc. should just have the hole | hole so that it may not detach | deviate to the horizontal direction from the vertical pipe 61. As shown in FIG. Therefore, the floating member 41 can be made into a C shape, a horseshoe shape, etc. without being limited to a ring shape. In addition, the floating member 41 may be formed of foam such as foamed plastic.

The buoyancy of the floating member 41 floating on the raw material liquid surface L in the raw material tank 10 is determined by the weight of the floating member 41 and the amount of air in the floating member 41. Therefore, by attaching the weight for buoyancy adjustment to the floating member 41, or pouring water into the floating member main body 42, the effect similar to the said modification 3, namely, with respect to the raw material liquid surface L, It is possible to change the position of the first horizontal axis 156a.

(Modification 5 of Embodiment 1)

1 to 3 and 6 illustrate the case where the bent portion 157b is provided on the first arm 157 of the link mechanism 155, but the bent portion may be provided on the second arm 158 or the first is provided. A bend may be provided on both the arm 157 and the second arm 158. The bent portion may be curved as well as bent at right angles.

(Modification 6 of Embodiment 1)

1 to 3 and 6 illustrate the case where the first arm 157 and the second arm 158 are used as the link mechanism, but a single arm may be used. In this case, the single arm is provided with shaft holes 157c and shaft holes 158c and 158d at both ends in the longitudinal direction, and the length between both ends is the distance from the third horizontal shaft 156c to the shaft hole 157c and the shaft hole 158c. , 158d) is approximately equal to the sum of the distances from the shaft hole 158e. In this case, when the floating member 41 descends, the floating member 41 is separated from the vertical tube 61 without sliding on the vertical tube 61. Therefore, the floating member 41 does not need to have the cylindrical part 42a and the recessed part 42b.

(Embodiment 2)

Embodiment 2 is the same as that of Embodiment 1 in that the raw material supply apparatus of an ice-cream maker is equipped with a liquid level detection means, a supply amount adjustment means, and an air introduction means, but the structure is different from Embodiment 1 mentioned above. Hereinafter, the point that Embodiment 2 differs from Embodiment 1 is mainly demonstrated.

FIG. 14 is an explanatory diagram showing a raw material supply device F2 according to the second embodiment, and FIG. 15 is the first distribution hole 81a as the pin 85 descends in the second embodiment. It is a conceptual diagram explaining that the communication hole 86 becomes large gradually.

In this raw material supply device F2, the liquid level detecting means is a ring-shaped floating member 241 floating on the ice cream raw material liquid level in the raw material tank 10. The floating member 241 has a flat bottom and does not have a recess 42b of the floating member 41 of the first embodiment (see FIGS. 1 and 3).

As shown in FIG. 14 and FIG. 15, the supply amount adjusting means includes a double cylinder portion 80 and a displacement transmission means.

The double cylinder portion 80 is an inner cylinder portion rotatable relative to the outer cylinder portion 81 having the first through hole 81a and the outer cylinder portion 81 having the second through hole 82a that can communicate with the first through hole 81a. Is done with 82. The communication hole 86 is formed of a portion in which the first through hole 81a and the second through hole 82a overlap each other.

The displacement transmission means transmits the up and down displacement of the floating member 241 to the double cylinder portion 80 to rotate the outer cylinder portion 81 and the inner cylinder portion 82 relatively, and change the size of the communication hole 86 to Adjust the supply amount to the cylinder part.

14 has shown the state which pulled out the outer cylinder part 81 from the inner cylinder part 82, The lower end of the inner cylinder part 82 is a liquid-tight state in the raw material introduction path of the bottom part of the raw material tank 10. Moreover, FIG. Is connected to.

More specifically, the outer cylinder portion 81 is a vertical tube extending from the bottom to the top of the raw material tank 10. The inner cylinder portion 82 is also a vertical tube, and has an outer flange contacting the bottom of the raw material tank 10 at the lower end thereof, and seals when inserted into the raw material introduction passage of the raw material tank 10 below the outer flange. It has a concave circumferential groove for inserting a sealing O ring.

The double cylinder portion 80 assembled by inserting the inner cylinder portion 82 into the outer cylinder portion 81 has an outer air inlet at the top and is mounted in the raw material tank 10 in the vertical direction. In the double cylinder portion 80 mounted in the raw material tank 10, the outside air inlet is communicated with the cylinder portion, and the double cylinder portion 80 thus serves as an air introduction means.

Moreover, the displacement transmission means in Embodiment 2 is a movement direction conversion mechanism which converts the motion which the floating member 241 rises and falls according to the raw material liquid surface height into the relative rotational motion of the outer cylinder part 81 and the inner cylinder part 82. to be.

The movement direction conversion mechanism is formed of a different guide slit formed on the wall around the outer cylinder portion 81 and the inner cylinder portion 82, and a metal or rigid plastic mounted on the floating member 241 and inserted into each guide slit. And a pin 85.

The guide slit formed in the outer cylinder part 81 serves as the said 1st flow hole 81a as a vertical guide slit extended in the cylinder longitudinal direction, for example. The guide slit formed in the inner cylinder part 82 doubles as the said 2nd flow hole 82a as a spiral guide slit, for example. In other words, the first distribution hole 81a and the second distribution hole 82a also have a function of guiding the moving direction of the pin 85.

Mounting of the pin 85 to the floating member 241 forms a screw hole in the L-shaped piece-shaped mounting portion 87 provided on the bottom surface of the floating member 241, and also has a pin 85 having a male screw. ) Can be mounted detachably by screwing into a screw hole. In this case, the double cylinder portion 80 is inserted into the hole of the floating member 241, and then the pin 85 is attached to the mounting portion 87 to be inserted into the first and second distribution holes 81a and 82a to be assembled. There is a number.

14 and 15, the second flow hole 82a has a width that widens as it goes downward. As the pin 85 descends along the first through hole 81a and the second through hole 82a with the drop of the floating member 241, the outer cylinder portion 81 and the inner cylinder portion 82 rotate relatively. do. As a result, the size of the communication hole 86 formed by the overlapping portion of the first through hole 81a and the second through hole 82a into which the pin 85 is inserted is gradually increased.

In Embodiment 2, since the inner cylinder part 82 is being fixed to the raw material tank 10, as shown in FIG. 14 and FIG. 15, with the fall of the floating member 241, the pin 85 was attached. The outer cylinder part 81 rotates with the floating member 241. As the outer cylinder portion 81 rotates, the position of the communicating hole 86 decreases, and the communicating hole 86 gradually increases.

In Embodiment 2 comprised in this way, when it demonstrates referring FIG. 1, FIG. 14, and FIG. 15, from the raw material liquid level L in the raw material tank 10 to the communication hole 86 which is a position where the fin 85 exists. Even if the distance of the material liquid level L changes, it will become constant. Therefore, even if the height of the raw material liquid surface L changes, the communication hole 86 is in the position which keeps the distance from the communication hole 86 to the vicinity of the raw material liquid surface L substantially constant.

By extracting the frozen dessert S from the frozen dessert maker of Embodiment 2, the raw material M in the double cylinder part 80 flows into the space in the cylinder part 20 first. Then, when the raw material liquid level L in the double cylinder portion 80 drops and reaches the communication hole 86, the raw material M in the raw material tank 10 passes through the communication hole 86 and flows into the double cylinder part 80. To start. When the raw material liquid level L in the raw material introduction passage 11 reaches the cylinder part 20, air is also supplied to the cylinder part 20, and the raw material M and air are stirred and cooled. Then, when the extraction of the frozen dessert S is completed, the liquid level L of the raw material M continuously flowing into the double cylinder portion 80 rises to the same height as the raw material liquid surface L in the raw material tank 10. .

In the meantime, with the drop of the raw material liquid surface L in the raw material tank 10, the pin 85 rotates while descending along the spiral second through hole 82a and the straight first through hole 81a. The size of the communication hole 86 gradually increases, and the flow rate of the raw material M in the raw material tank 10 flowing into the double cylinder portion 80 also gradually increases.

In the case of Embodiment 2, since the distance from the raw material liquid level L in the raw material tank 10 to the communication hole 86 hardly changes, even if the height of the raw material liquid level L in the raw material tank 10 changes, The pressure applied to the communication hole 86 by the raw material M in the raw material tank 10 is maintained substantially constant. However, the amount of the raw material M in the double cylinder portion 80 is varied by the height of the raw material liquid surface L in the raw material tank 10. In other words, if the height of the raw material liquid surface L in the raw material tank 10 decreases every time the ice is extracted, the amount of the raw material M in the double cylinder portion 80 flowing into the cylinder portion 20 decreases.

In order to compensate for the reduction of the raw material M in the double cylinder portion 80, in Embodiment 2, the width of the second flow hole 86 is made wider as it goes downward, and accordingly in the double cylinder portion 80 The flow rate of the raw material M in the raw material tank 10 which flows in is made to increase, and the mixing ratio of the raw material M and air supplied to the cylinder part 20 is maintained within the predetermined range by this.

Therefore, in Embodiment 2, the increase rate of the width | variety of the 2nd flow hole 82a which is a spiral guide slit, the width of the 1st flow hole 81a, the diameter of the pin 85, etc. are supplied in the cylinder part 20. FIG. It is designed in consideration of the mixing ratio of the raw material M and air to be maintained within a predetermined range.

According to Embodiment 2, while bringing the same effects as the said Effects 1-1 and 1-2 of Embodiment 1, it brings about the following effects.

(Effect 2-1)

The double cylinder portion 80 serves as an air introduction means. In addition, the displacement transmission means is constituted by a pin 85 mounted to the floating member 241 and each other guide slit formed on the wall around the outer cylinder portion 81 and the inner cylinder portion 82. Therefore, the raw material supply apparatus can be manufactured with few components, a simple structure, and low cost.

Embodiment 2 can be changed as follows.

(Modification 1 of Embodiment 2)

A plurality of upper and lower screw holes can be formed in the L-piece piece mounting portion 87 for mounting the pin 85 to the floating member 241, and the mounting height position of the pin 85 can be changed.

In this way, even if the floating member 241 is at the same height position, the size of the communication hole 86 of the double cylinder part 80 can be changed by the mounting height position of the selected pin 85. For example, when the viscosity of the raw material M is high, the correspondence that the size of the communication hole 86 is made to some extent larger than the case where the viscosity is low can be responded.

Or like the modification 4 of Embodiment 1, the position of the pin 85 with respect to the raw material liquid surface L in the raw material tank 10 is changed by putting a weight or water into the floating member 241, and adjusting a buoyancy force. You may do so.

(Modification 2 of Embodiment 2)

The pin may be formed of a coil spring, or may be formed of an elastic material made of rubber, elastic plastic, or the like to be fixed to the floating member 241. In this case, the pin is elastically deformed in assembling and detaching the floating member 241 to the double cylinder portion 80, so that it is not disturbed.

In this case, the same flow hole as the first flow hole 81a is formed in the outer cylinder portion 81 at the opposite position of 180 ^° , and the same flow path as the second flow hole 82a is formed in the inner cylinder portion 82. a ball formed at the opposite position of another 180 ^о, and can also install a pair of opposed positions in Fig. 180 ^о pin. In this way, the load on one pin can be reduced. Alternatively, a pin guide groove that does not penetrate the wall around the inner cylinder portion 82 may be used instead of the distribution hole added to the inner cylinder portion 82. This configuration is also applicable to pins made of metal or hard plastic.

(Modification 3 of Embodiment 2)

The width of the second flow hole 82a of the inner cylinder portion 82 can be made constant, and the width of the first flow hole 81a of the outer cylinder portion 81 can be widened downward.

Alternatively, both the width of the second distribution hole 82a and the width of the first distribution hole 81a can be made wider as they are directed downward.

(Embodiment 3)

FIG. 16: is explanatory drawing which shows the raw material supply apparatus F3 of Embodiment 3. As shown in FIG.

In the third embodiment, the first cylindrical hole 181a serving as the guide slit is formed in the outer cylinder portion 181 of the double cylinder portion 180, and the linear agent that serves as the guide slit in the inner cylinder portion 182 is formed. The formation of the second distribution hole 182a is different from that in the second embodiment, and the rest of the configuration is substantially the same as in the second embodiment. In addition, in FIG. 16, the same code | symbol is attached | subjected to the component same as 2nd Embodiment.

In this case, as shown in FIG. 16, at least either one of the 1st distribution hole 181a and the 2nd distribution hole 182 is formed broadly as it goes downward.

In the raw material supply device F3 of Embodiment 3, the pin 85 falls linearly along the 2nd flow hole 182a of the inner cylinder part 182, and is made of the sliding-sliding agent to the pin 85; The outer portion 181 is rotated by the edge portion of the one through hole 181a receiving the force in the circumferential direction. And the communication hole 86 (refer FIG. 15) in which the pin 85 was inserted gradually becomes large, and similarly to Embodiment 2, the raw material M which flows into the double cylinder part 180 from inside the raw material tank 10 is carried out. The flow rate increases.

According to Embodiment 3, the effect similar to the said Effect 1-1, 1-2 of Embodiment 1, and the said Effect 2-1 of Embodiment 2 is brought.

(Modification of Embodiment 3)

In Embodiment 3, Modifications 1, 2 and 3 of Embodiment 2 can be applied.

(Fourth Embodiment)

Embodiment 4 is the same as that of Embodiment 2 and 3 except the structure which connects a double cylinder part to the raw material introduction path of a raw material tank except Embodiment 2 and 3 shown in FIG. 14 and FIG.

That is, for example, using Embodiment 2 (similar to Embodiment 3), in Embodiment 2, the inner cylinder portion 82 of the double cylinder portion 80 may be formed of the raw material tank 10. Although the outer cylinder part 81 was rotated by connecting and fixing to the raw material introduction path 11, in Embodiment 4, the outer cylinder part 81 was connected and fixed to the raw material introduction path 11 of the raw material tank 10, and was connected to the inner cylinder part. Rotate 82.

In the fourth embodiment, the outer flange contacting the bottom of the raw material tank 10 and the concave circumferential groove for the O-ring are formed in the lower portion of the outer cylinder portion 81. In addition, the distribution holes 81a and 82a formed in the outer cylinder part and the inner cylinder part, the attachment structure of the pin 85 to the floating member 241, etc. are the same as that of Embodiment 2. As shown in FIG.

According to Embodiment 4, the effect similar to the said Effect 1-1, 1-2 of Embodiment 1, and the said Effect 2-1 of Embodiment 2 is brought.

In Embodiment 4, Modifications 1 to 3 of Embodiment 2 can be applied.

(Embodiment 5)

FIG. 17: is explanatory drawing which shows the raw material supply apparatus F5 of Embodiment 5. FIG.

The fifth embodiment has a similar configuration to the second and third embodiments including the floating member 241 and the pin 85, but the outer cylinder portion performs the movement of the floating member 241 up and down in accordance with the height of the raw material liquid surface L. FIG. Embodiment 2 and 3 of the movement direction conversion mechanism which changes into the relative rotational motion of 281 and the inner cylinder part 282, and the 1st distribution hole 281a and the 2nd distribution hole 282a of the double cylinder part 280 Is different. In addition, in FIG. 17, the same code | symbol is attached | subjected to the component same as Embodiment 2 and 3. As shown in FIG.

Hereinafter, the points of the fifth embodiment are different from those of the second and third embodiments.

The movement direction conversion mechanism of Embodiment 5 is the inclined guide slot formed inclined in the axial center direction longitudinal guide slit 283 formed in the wall around the outer cylinder part 281, and the wall around the inner cylinder part 282. 285 and the pin 185 detachably attached to the floating member 241 are provided.

The pin 185 is inserted into a longitudinal guide slit 283, and its tip can slide along the inclined guide groove 285.

In the double cylinder portion 280, the range in the circumferential direction of the inclined guide groove 285 formed in the inner cylinder portion 282 is a relative rotation range of the outer cylinder portion 281 and the inner cylinder portion 282.

Moreover, the 1st flow hole 281a is formed in the position which does not have the vertical guide slit 283 in the lower part of the circumference | surroundings of the outer cylinder part 281 in elongate long hole shape, for example in the circumferential direction. The second flow hole 282a is formed in a long elongated shape in the circumferential direction, for example, at a position where the inclined guide groove 285 in the lower portion of the wall around the inner cylinder portion 282 is not present. The first distribution hole 281a and the second distribution hole 282a are arranged at the same height position and at positions overlapping each other within a range in which the outer cylinder portion 281 and the inner cylinder portion 282 rotate relatively.

FIG. 18 is a conceptual view illustrating the fifth embodiment in which the outer cylinder portion 281 rotates and the communication hole 286 gradually increases as the pin 185 is lowered.

According to Embodiment 5 comprised in this way, as shown in FIG. 17 and FIG. 18, with the fall of the floating member 241, the pin 85 falls along the longitudinal guide slit 283 and the inclined guide groove 285. FIG. When the pin 185 pushes the side edge of the longitudinal guide slit 283 in the circumferential direction, the outer cylinder portion 281 rotates relative to the inner cylinder portion 282 accordingly.

As a result, the first through hole 281a moves in the circumferential direction with respect to the second through hole 282a, and the first through hole 281a and the second through hole 282a overlap with each other. This gradually increases. Therefore, the flow volume of the raw material in the raw material tank which flows into the double cylinder part 80 increases.

According to Embodiment 5, the effect similar to the said Effect 1-1, 1-2 of Embodiment 1, and the said Effect 2-1 of Embodiment 2 is brought.

(Embodiment 6)

In Embodiment 5 shown in FIG. 17, the inner cylinder part 282 in the double cylinder part 280 is connected and fixed to the raw material introduction path 11 of the raw material tank 10, and is comprised so that the outer cylinder part 281 may be rotated. However, in Embodiment 6, the outer cylinder part 281 is connected and fixed to the raw material introduction path 11 of the raw material tank 10, and the inner cylinder part 282 is rotated (illustration omitted).

In Embodiment 6, the outer flange which contacts the bottom part of the raw material tank 10, and the recessed groove for O-rings are formed in the lower part of the outer cylinder part 281. As shown in FIG. In addition, the guide slit and guide groove which are formed in the outer cylinder part 281 and the inner cylinder part 282, the attachment structure of the pin to a floating member, etc. are the same as that of Embodiment 5. As shown in FIG.

According to Embodiment 6, the effect similar to the said Effect 1-1, 1-2 of Embodiment 1, and the said Effect 2-1 of Embodiment 2 is brought.

(Modifications of Embodiments 5 and 6)

In Embodiments 5 and 6, Modifications 1 and 2 of Embodiment 2 can be applied.

In addition, the shape and combination of the 1st through hole and the 2nd through hole in Embodiment 5 and 6 can be changed suitably like the modified example 1 of Embodiment 1. As shown in FIG.

In Embodiments 5 and 6, the inclined guide slit may be formed in the outer cylinder portion, and the longitudinal guide groove may be formed in the inner cylinder portion.

Claims

It is installed in the ice-cream maker which is equipped with the raw material tank which stores a liquid ice material raw material, the cylinder part for stirring and cooling an ice material raw material with air, and the cooling part which cools the said raw material tank and a cylinder part, A raw material supply device for adjusting the supply amount of the frozen dessert raw material supplied from the tank to the cylinder portion,

Liquid level detecting means for automatically detecting the liquid level of the ice cream raw material in the raw material tank;

Supply amount adjusting means for adjusting the supply amount of the ice cream raw material to the cylinder portion in association with the detected liquid level;

Air introduction means for introducing air into the cylinder portion;

The liquid level detecting means is a floating member floating on the ice cream raw material liquid level in the raw material tank,

The supply amount adjusting means includes a double cylinder portion having a relatively inner cylinder portion rotatable relative to the outer cylinder portion having a first through hole and a second through hole communicateable with the first through hole, and the displacement of the floating member up and down. Displacement transmission means for adjusting the supply of the raw material to the cylinder portion by changing the size of the communication hole formed by the overlapping portion of the first through hole and the second through hole by transmitting to the cylinder portion and the inner cylinder portion relatively Raw material supply apparatus for ice cream maker equipped with.

The method of claim 1,

The air introduction means is a vertical tube having an outside air inlet at the top and communicating with the cylinder portion, the double cylinder portion extending in a horizontal direction near the bottom in the raw material tank, one end of which communicates with the vertical tube,

The displacement transmission means is a link mechanism that converts the movement of the floating member in accordance with the raw material liquid level to a rotational movement around the horizontal axis relative to the outer cylinder portion and the inner cylinder portion in the double cylinder portion. Feeding device.

3. The method of claim 2,

The floating member has a first horizontal axis on its outer circumferential surface,

The double cylinder portion has a second horizontal axis integrally installed at the end of the outer cylinder portion or the inner cylinder portion,

The link mechanism includes a first arm having a pivot engaging portion at both ends, and a second arm having a pivot engaging portion at both ends, and the pivot engaging portion at one end of the first arm and the pivot coupling at one end of the second arm. Pivotally coupled to the additional arm, the pivot engaging portion at the other end of the first arm pivotally coupled to the first horizontal axis, and the pivot engaging portion at the other end of the second arm to pivot the outer cylinder portion or the inner cylinder portion Raw material supply device for ice cream maker, characterized in that mounted on the second horizontal axis.

The method of claim 3,

A plurality of first horizontal axes are provided in the vertical direction, the raw material supply device for ice cream maker.

3. The method of claim 2,

And said floating member has a hole for inserting said vertical pipe.

3. The method of claim 2,

The communication hole is a raw material supply device for ice cream maker, characterized in that disposed in the lower portion of the double cylinder.

The method of claim 1,

The double cylinder portion has an outside air inlet at the top, is installed in the vertical direction in the raw material tank to serve as air introduction means, and the outside air inlet is connected to the cylinder through the outer cylinder portion and the inner cylinder portion,

The displacement transmission means is a movement direction conversion mechanism for converting the movement of the floating member in accordance with the raw material liquid level to the relative rotational movement of the outer cylinder portion and the inner cylinder portion,

And the movement direction converting mechanism comprises different guide slits formed on walls around the outer cylinder portion and the inner cylinder portion, and pins mounted on the floating member and inserted into the guide slits, respectively.

The method of claim 7, wherein

The said floating member has a mounting part which can attach | attach a said pin in a plurality of upper and lower places, The raw material supply apparatus for ice cream makers characterized by the above-mentioned.

A raw material tank for storing the liquid frozen material, a cylinder portion for stirring and cooling the frozen fruit raw material with air, a cooling unit for cooling the raw material tank and the cylinder portion, and a frozen dessert manufacturing machine according to claim 1 Ice cream maker with raw material feeder.