JPS6048143B2 - Home ice cream making machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an ice cream manufacturing machine.More specifically, the present invention relates to an annular container provided with a blade member driven and rotated by a geared motor; This invention relates to a household ice cream manufacturing machine comprising a motor compressor, a condenser, and a cooling system comprising an evaporator provided adjacent to the outer wall and bottom of the annular container.

In conventional ice cream making machines of this kind, the container is fixed to the main body of the ice cream making machine, and the evaporator is brought into direct contact with the wall of the container itself. PRIOR ART However, according to the above-mentioned conventional arrangement, not only is it difficult to clean the container, but a problem associated with this cleaning is, among other things, when different kinds of containers are removed in rapid succession, as may be required in some cases. The disadvantage is that it is not possible to produce ivy ice cream.

OBJECTS OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks of the conventional machines of this type. forming an intermediate space between the annular body and the annular body being constructed of a material having high thermal conductivity;
An evaporator is mounted outside the exterior side wall of the body to contain a quantity of low freezing point liquid sufficient to fill the intermediate space and to maintain a favorable heat exchange relationship with the liquid within the intermediate space. Its object is to provide an ice cream making machine of the above-mentioned type, especially for domestic use, whose main feature is that it is arranged adjacent to the outer surface and bottom of an annular container by welding the top and the bottom. That is.

SUMMARY OF THE INVENTION According to the above configuration according to the present invention, the annular container can be removed from the main body of the ice cream manufacturing machine, making cleaning extremely easy.

In addition, the small and lightweight annular container can be easily cleaned like a normal cooking utensil. According to the ice cream making machine according to the invention, the intermediate space is formed by the outer side wall and the bottom of the annular container.

In the present invention, the evaporator is housed in the intermediate space and is immersed in the low freezing point liquid when the container is incorporated into the body. Also, the annular body is made of a material with high thermal conductivity, and the evaporator is welded to the outer surface and bottom of the outer wall of the body. Therefore, the evaporator does not need to be immersed in a low freezing point liquid, further simplifying periodic cleaning of the annular vessel,
The above arrangement also makes it possible to reduce the volume of the intermediate space and thus the amount of low freezing point liquid, which on the one hand achieves considerable improvements in the distribution of the cooling system and, on the other hand, reduces the volume of the annular space. It becomes even easier to attach and detach the container to and from the ice cream making machine.

The evaporator coil is also clearly advantageous in terms of appearance, since even if the annular container is removed, the evaporator coil is protected and shielded by the annular body and is not visible from the outside.

EXAMPLE The structure of the present invention will be explained below with reference to the attached drawings.

In FIG. 1, an annular body 1 is fixed to a support (not shown) of a domestic ice cream making machine and has an external insulation 2. In FIG.

The outer edge of the main body 1 is provided with an annular flange 3 formed by horizontally bending outward, and a vertical screw 4 is attached to the flange 3.

The annular container 5 is located inside the main body 1 and has an annular flange portion 6 formed around its outer edge by being bent outward in a horizontal direction and supported on the flange portion 3 of the main body 1. have

The flange portion 6 is provided with a hole into which a screw 4 is engaged, and a nut 7 is screwed into the screw 4 to detachably attach the container 5 to the main body 1.

The nut 7 is configured to be convenient for rapid manual manipulation and may be formed, for example, as a butterfly nut or as a cylindrical nut with a knurled outer surface. The radially inner part of the bottom of the container 5 also has a step 1 formed in the bottom of the body 1.
supported on a. The container 5 is designed with dimensions smaller than the dimensions of the body 1, so that an intermediate space 8 is formed between the outer wall and the bottom of the body, which contains a liquid with a low freezing point, for example salt water (Brine). be done.

Inside the intermediate space 8, below the level of the low-freezing liquid, there is provided an evaporator coil 9, which coil 9 is provided with a cooling system provided with a motor-driven compressor 10 and a condenser 11 cooled by a fan 12. Configure part of the system.

The low freezing point liquid in the intermediate space has the function of ensuring good cold air transmission from the evaporator 9 to the container 5 without direct metallic contact between the two.

A shaft 15 is provided with a low freezing point liquid discharge tap 13, a geared motor unit 14, vertically penetrates the central cavity of the main body 1 via a clutch (not shown), and has a sealing washer 19. Rotate.

As shown, the shaft 15 is surrounded by an inner side wall 1b of the body 1, which further includes an inner side wall 5 of the annular container 5.
surrounded by a. At the free end of the shaft 15, a vane 17, housed in a container 5 in a known manner, connects the prismatic coupling 1.
6, it is attached by a key.

A threaded portion is provided at the end of the shaft 15, and a manually operable nut 18 is engaged with the threaded portion so as to lock the blade portion 17 on the shaft 15 in the axial direction. A removable lid 20 is attached to close the container 5, and the lid 20 is provided with a handle 21 in the center for convenience of handling. According to the above explanation, in order to perform rinsing and cleaning after operation of the ice cream making machine according to the present invention, the lid 20, the nuts 7 and 18, and the blade part 17 are
It will be clear that the annular container 5 can be quickly removed by simply removing the other parts.

The more preferred embodiment shown in FIGS. 2-4 is generally similar to the embodiment described above, and only the differences will be described below, using the same reference numerals for like parts.

In the embodiment described above, the outer side wall 1b and the base wall 1c of the annular body 1 are made of a material with high thermal conductivity, for example usually copper, and the evaporator coil 9 is formed on the outer surface of the walls 1b and 1c. be welded to.

The evaporator 9 is therefore not immersed in the low freezing point liquid in the intermediate space 8, which further simplifies the periodic cleaning of the container 5. The evaporator 9 is thus effectively protected by the body 1'' even when the annular container 5 is removed, and it is furthermore possible to reduce the dimensions of the intermediate space 8 and, as a result, the amount of low-freezing liquid. There is an additional advantage: in this embodiment, the internal wall of the body 1 is constituted by a cylindrical casing 22 which is fitted onto the shaft 15 and is locked to the bottom of the body 1 by means of a ring nut 23.

Similarly, the inner wall of the annular container 5 is constituted by a cylindrical casing 24 that surrounds the casing 22 and is locked to the base of the container 5 by a ring nut 25.
The removable connection between the container 5 and the main body 1 is welded to the annular flange 3 of the main body 1 and projects vertically upwardly to engage with a corresponding oblong opening 27 formed in the annular flange 6 of the container 5. This is achieved by a pair of grooved pins 26, which

As clearly shown in FIG. 4, each opening 27 has an initially enlarged end portion 28 formed to allow each pin 26 to pass therethrough, and a narrow portion 29 for engaging the groove of the pin 26 when the container is rotated. and To facilitate the removal and reinsertion of the container 5, the annular flange 6 is fitted with two handles 30. In order to effectively close the intermediate space 8 in a gas-tight manner upon insertion of the annular container, an annular washer 31 made of elastic descending material is arranged between the annular flange 6 and the outer edge of the body 1.

In this embodiment, the geared motor unit 14 is provided adjacent to the main body 1 and parallel to the shaft 15.

The connection between the motor unit 14 and the shaft 15 is achieved by a toothed transmission belt via a clutch of known type, although not shown. Therefore, the present invention can achieve its intended purpose by having the configuration as described in detail in the above embodiments.

[Brief explanation of drawings]

FIG. 1 is a schematic partial cross-sectional side view of a home ice cream making machine according to an embodiment of the present invention, and FIG. 2 is a similar view of a home ice cream making machine similar to FIG. FIG. 3 is a partial cross-sectional schematic side view, FIG. 3 is a detailed cross-sectional view of the main part of FIG. 2, and FIG. 4 is a plan view showing the main part of FIG. 1. 1... Annular body (Annular vessel)
), 2... External insulation material, 3... Annular flange, 4... Screw, 5... Annular container (Ann
ularcontajner), 6...Flange part, 7...Nut, 8...Intermediate space, 9...Evaporator coil, 10...Compressor , 11... Condenser, 12... Fan, 1
3...Tap, 14...Motor unit with gear, 15...Shaft, 17...Blade part, 18...
... Nut, 20 ... Lid, 21 ... Handle, 22, 24 ... Cylindrical casing, 26.
...Grooved pin, 27...Horizontal opening, 30
...Handle, 31...Annular washer.

Claims (1)

[Claims] 1. A blade portion 1 driven by a geared motor 14 inside.
The cooling system consists of an annular container 5 which rotatably accommodates the evaporator 7, a compressor 10 with a motor, a condenser 11, and an evaporator coil 9. A domestic ice cream making machine is provided in which the annular container 5 is welded to the bottom and is disposed adjacent to the outer surface and the bottom of the annular container 5, and the annular container 5 is removably supported within the annular main body 1 and the annular container 5 is welded to the bottom. forming an intermediate space 8 between the side wall and bottom of the container 5 and the side wall and bottom of the main body 1;
The main body 1 is made of a material with high thermal conductivity, and contains a low freezing point liquid in an amount sufficient to fill the intermediate space 8 when the container 5 is installed in the main body 1. Ice cream making machine, characterized in that the evaporator coil (9) is arranged to maintain a favorable heat exchange relationship with the liquid in the intermediate space (8). 2. The ice cream manufacturing machine according to claim 1, which includes a holding means 4 for locking the annular container 5 to the main body 1 when the annular container 5 is inserted into the main body 1. , 26. 3. The ice cream manufacturing machine according to claim 2, wherein the annular flange portion 6 is bent horizontally outward and supported on the corresponding bent flange portion 3 on the outer edge of the container 5. and a removable locking means for fixing the flanges 3 and 6 to each other. 4. The ice cream manufacturing machine according to claim 3, wherein the removable locking means comprises:
A device characterized by being a screw means. 5. An ice cream manufacturing machine according to claim 3, wherein the removable locking means engages in a corresponding opening 27 having an enlarged end 28 formed in the annular container 6 of the container 5. A grooved pin 26 characterized in that a sealing means 31 is interposed between the flange portion 6 of the container 5 and the corresponding edge of the main body 1. 6. The ice cream manufacturing machine according to claim 1, wherein a vertical shaft 15 whose lower end is driven by a geared motor 14 and extends into the central cavity of the annular body 1,
The blade part 17 is detachably attached, and a sealing means 19 is interposed between the upper end of the shaft 15 and the inner wall of the annular container 5.