JP3784343B2 - Frozen dessert supply equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a frozen confection supply device, and more particularly to an apparatus for extruding and discharging a packed frozen confection loaded in a cylinder by movement of a piston.
[0002]
[Prior art]
The whole structure of the conventional frozen dessert supply apparatus is shown in FIG. While the cooler 2 and the internal fan 3 are disposed on the ceiling portion in the freezer compartment 1, the refrigerator 5 connected to the cooler 2 is disposed in the machine chamber 4. The internal air sucked through the duct 6 provided in the inner surface of the freezer compartment 1 is cooled by the cooler 2 and is circulated and supplied into the freezer compartment 1 by the internal fan 3. It is maintained at such a temperature that iced confections such as ice cream can be poured out.
[0003]
When the cock 7 is opened, the valve body 8 is raised to open the cock pipe 9 and the spout switch 10 is turned on to drive the pump 11 in the machine chamber 4 in the forward direction, as indicated by a solid arrow. The brine 13 is supplied from the brine tank 12 to the pressure chamber 15 below the cylinder 14. As a result, the piston 16 ascends, and the packed frozen dessert 17 loaded on the upper portion of the cylinder 14 is compressed by the truncated cone-shaped convex portion 16 a at the tip of the piston 16, and the frozen dessert 19 flows out from the outlet 18 of the packed frozen dessert 17. Then, it passes through the cock pipe 9 and is poured out from the spout 20. When the cock 7 is closed, the spout switch 10 is turned off, the pump 11 is stopped, the valve body 8 is lowered, the cock pipe 9 is closed, and the extraction of the frozen dessert 19 is stopped.
[0004]
When the piston 16 reaches the top dead center position in the cylinder 14 and the frozen dessert 17 cannot be further compressed and the frozen dessert 19 cannot be dispensed, the operation of the operation panel 21 causes the pump 11 to move in the reverse direction. When driven, as indicated by the broken arrow, the brine 13 is returned from the pressure chamber 15 of the cylinder 14 to the brine tank 12 and the piston 16 descends. In this state, the cylinder cap 22 of the cylinder 14 is opened, and the packed frozen dessert 17 is replaced.
[0005]
[Problems to be solved by the invention]
However, as shown in FIG. 11, when the piston 16 reaches the top dead center position in the cylinder 14, the gap between the convex portion 16 a of the piston 16 and the lower surface 22 a of the cylinder cap 22 assembled to the upper portion of the cylinder 14. Since a space is formed in this space, there is a risk that a large amount of the frozen dessert 17 remains in this space.
This invention was made in order to solve such a problem, and it aims at providing the frozen dessert supply apparatus which can reduce the residual amount of bagging frozen dessert.
[0006]
[Means for Solving the Problems]
The frozen dessert supply device according to the present invention is a frozen dessert supply device that extrudes the packed frozen dessert loaded in the cylinder by advancing the piston, and the piston bulges in the axial direction and the radial direction of the cylinder at its tip. The convex portion of the piston has a portion that bulges outward from the base portion in the radial direction of the cylinder .
The convex portion of the piston is preferably made of a part of a sphere and is rotatable. In this case, the rotation angle of the convex portion of the piston may be restricted.
It is further preferable to provide a cylinder cap that is mounted on the end of the cylinder and has a concave portion having a shape corresponding to the convex portion of the piston on the surface facing the inside of the cylinder. A cutout is provided for passing the frozen dessert outlet to the outside, and the cylinder cap is provided with a substantially annular protruding portion that protrudes from the peripheral edge of the recess, and the protruding portion is inserted into the outlet of the packed frozen dessert that is passed through the notch. You may form the hollow which connects a recessed part to a protrusion part so that it may not interfere.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
Embodiment 1 FIG.
FIG. 1 shows the overall structure of a frozen dessert supply apparatus according to Embodiment 1 of the present invention. This frozen dessert supply device is provided with a convex portion 31a formed of a part of a sphere at the tip instead of the piston 16 provided with the truncated cone-shaped convex portion 16a at the tip in the conventional frozen dessert supply device shown in FIG. A piston 31 is used. The piston 31 is slidably provided in the cylinder 14.
As shown in FIG. 2, a piston seal 32 is fitted on the outer periphery of the piston 31, so that the piston 31 is in close contact with the inner wall surface of the cylinder 14 while preventing leakage of the brine in the pressure chamber 15. It is configured to be slidable in the vertical direction. On the other hand, the convex portion 31a of the piston 31 bulges in the axial direction and the radial direction of the cylinder 14, and has a spherical shape slightly larger than the hemisphere, and the spherical central position O is higher than the base portion of the convex portion 31a. Is located. That is, the space formed between the side surface of the convex portion 31a and the inner wall surface of the cylinder 14 has a shape that gently spreads downward at a position lower than the spherical center position O.
[0008]
Next, the operation of the frozen dessert supply device according to this embodiment will be described. As shown in FIG. 3, the piston 31 is provided with a convex portion 31 a bulging in a spherical shape in the axial direction and the radial direction of the cylinder 14 at the tip, so that the piston 31 is located at the top dead center position in the cylinder 14. The space formed between the convex portion 31a and the lower surface 22a of the cylinder cap 22 assembled to the upper portion of the cylinder 14 when it reaches is a truncated cone-shaped convex portion whose piston is indicated by a broken line at its tip. As a result, the remaining amount of the frozen frozen dessert 17 can be reduced.
[0009]
The plate member is preferably formed from pure iron.
The iron-nickel layer of the low expansion member is formed by forming a nickel layer on the surface of the plate member made of an iron-based material, and then heat-treating the nickel layer to diffuse the nickel of the nickel layer into the plate member. In this case, the nickel layer is formed by any one of plating, thermal spraying, casting, and sputtering. Alternatively, the iron nickel layer of the low expansion member is formed on the surface layer portion of the plate member by simultaneously sputtering iron and nickel on the surface of the plate member made of an iron-based material.
[0010]
In addition, although the piston 31 was provided with the convex part 31a which consists of a part of spherical body in the front-end | tip, this invention is not limited to this, As FIG. 4 shows, the convex part 31a of the piston 31 is shown. Even if the piston 33 having a convex portion 33a having a flat shape only at the top is used, the residual amount of the packed frozen dessert 17 can be reduced and brine leakage due to the biting of the bag end can be prevented. Can do.
[0011]
Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to FIG. The frozen dessert supply device of the second embodiment uses a piston 41 having a sphere 42 at the tip instead of the piston 31 in the frozen dessert supply device of the first embodiment shown in FIG. The piston 41 includes a spherical body 42 and a piston main body 43, and the piston main body 43 has a spherical concave surface 43a at the top. The spherical body 42 is placed without being fixed on the concave surface 43 a of the piston main body 43, and the spherical body 42 is in a state where it can freely rotate with respect to the piston main body 43. That is, the convex part 42a which can rotate freely is formed by the part which protrudes upwards from the piston main body 43 of the spherical body 42. As shown in FIG.
[0012]
Since the center position O of the sphere 42 is located above the upper end of the piston main body 43, the space formed between the side surface of the convex portion 42 a and the inner wall surface of the cylinder 14 is more than the center position O of the sphere 42. At low places, it has a shape that gently spreads downward. A piston seal 44 is fitted on the outer peripheral portion of the piston main body 43, whereby the piston 41 can slide in the vertical direction while closely contacting the inner wall surface of the cylinder 14 while preventing leakage of the brine in the pressure chamber 15. It is configured as follows.
With the configuration as described above, the remaining amount of the packed frozen dessert 17 can be reduced as in the first embodiment, and the sphere 42 provided at the tip of the piston 41 rotates relative to the piston main body 43. By moving, it is possible to suppress the shift and catching of the bag end of the packed frozen confectionery 17 and to more effectively prevent the leakage of brine due to the biting of the bag end.
[0013]
Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described with reference to FIG. The frozen dessert supply apparatus according to the third embodiment uses a piston 51 provided with a tip member 52 that rotates only within a predetermined angle range in place of the piston 41 in the frozen dessert supply apparatus according to the second embodiment. . The piston 51 includes a tip member 52 and a piston main body 53. The tip member 52 is composed of an upper part made up of a part of a large sphere and a lower part made up of a part of a small sphere, and these upper part and lower part have a common center position O. A spherical concave surface 53a corresponding to the lower portion of the tip member 52 is provided at the upper center of the piston main body 53, and the lower portion of the tip member 52 is placed on the concave surface 53a without being fixed, thereby causing the tip member. 52 is in a state where it can freely rotate with respect to the piston main body 53. That is, a rotatable convex portion 52 a is formed by an upper portion of the tip member 52 protruding upward from the piston main body 53. The piston main body 53 is provided with an annular step 53b at the outer edge of the concave surface 53a, thereby restricting the rotation of the convex portion 52a within a predetermined angle range.
[0014]
Since the center position O of the upper portion of the tip member 52 is located above the upper end of the piston main body 53, the space formed between the side surface of the convex portion 52a and the inner wall surface of the cylinder 14 is the tip member 52. In a lower part than the center position O of the upper part, the shape gradually spreads downward. A piston seal 54 is fitted on the outer periphery of the piston main body 53, so that the piston 51 can slide up and down while closely contacting the inner wall surface of the cylinder 14 while preventing leakage of the brine in the pressure chamber 15. It is configured as follows.
Even with the configuration as described above, as in the second embodiment, it is possible to reduce the residual amount of the frozen confectionery 17 and more effectively prevent leakage of brine due to biting of the end of the bag.
[0015]
Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 7 and 8, the frozen dessert supply device of the fourth embodiment is the same as the frozen dessert supply device of the first embodiment shown in FIG. 1 except that a piston provided with a convex portion 31a made of a part of a sphere at the tip. Instead of 31, a piston 61 having a convex portion 61 a that bulges in the axial direction and the radial direction of the cylinder 14 and whose longitudinal section has a substantially elliptical shape is used, and further has a truncated cone-shaped convex portion on its lower surface. Instead of the cylinder cap 22, a cylinder cap 63 having a concave portion 62 having a shape corresponding to the convex portion 61 a of the piston 61 on the surface facing the inside of the cylinder 14, that is, the surface facing the packed frozen dessert is used.
As shown in FIG. 7, a piston seal 32 is fitted on the outer periphery of the piston 61 in the same manner as the piston 31 in the first embodiment. Further, since the convex portion 61a of the piston 61 bulges in the axial direction and the radial direction of the cylinder 14, the space formed between the side surface of the convex portion 61a and the inner wall surface of the cylinder 14 is the same as that of the convex portion 61a. It has a shape that gently spreads downward near the base.
[0016]
As shown in FIG. 8, a notch 64 is formed in the upper edge of the side surface of the cylinder 14 to allow the take-out port 18 of the packed frozen dessert 17 loaded in the cylinder 14 to pass outside. A plurality of locking members 65 are arranged on the outer periphery of the upper side surface of the cylinder 14 at intervals.
The cylinder cap 64 includes a fixed portion 66 that is provided at the center and is fitted into the upper portion of the cylinder 14, and a rotating portion 67 that is rotatably attached to the outer periphery of the fixed portion 66. The surface of the fixed portion 66 facing the inside of the cylinder 14, that is, the lower surface of the fixed portion 66, is formed with a substantially annular protruding portion 68 that protrudes downward at the peripheral edge thereof. A concave portion 62 having a shape corresponding to the convex portion 61 a of the piston 61 is formed. The protrusion 68 is formed with a recess 69 communicating with the recess 62, so that the protrusion 68 does not interfere with the outlet 18 of the packed frozen dessert 17 passed through the notch 64 of the cylinder 14. It has become. A positioning plate 70 is disposed on the side surface of the fixing portion 66 so as to be positioned above the recess 69. On the other hand, a plurality of teeth 71 that engage with the lock member 65 of the cylinder 14 are formed on the outer peripheral portion of the rotating portion 67 of the cylinder cap 63 so as to protrude at intervals.
Further, as shown in FIG. 9, a first mark 72 located above the positioning plate 70 on the side surface of the fixing portion 66 is marked on the upper surface of the fixing portion 66 of the cylinder cap 63. On the other hand, a second mark 73 is marked on the upper surface of the rotating portion 67, and the fixing portion positioning plate 70 is inserted into the notch 64 of the cylinder 14 with the second mark 73 aligned with the first mark 72. Then, the teeth 71 of the rotating part 67 can pass between the lock members 65 of the cylinder 14 and the fixing part 66 can be fitted into the upper part of the cylinder 14. A handle 74 is attached to the upper surface of the rotating portion 67.
[0017]
When attaching the cylinder cap 63 to the cylinder 14, first, the first mark 72 on the upper surface of the fixing portion 66 of the cylinder cap 63 and the second mark 73 on the upper surface of the rotating portion 67 are aligned with the notch 64 of the cylinder 14. The fixing portion 66 is inserted into the upper portion of the cylinder 14 while the positioning plate 70 of the fixing portion 66 is inserted. At this time, since the recess 69 is formed below the positioning plate 70, the recess 69 is positioned above the outlet 18 of the packed frozen dessert 17 passed through the notch 64. Then, by rotating the handle 74 attached to the upper surface of the rotating portion 67, the rotating portion 67 is rotated clockwise by a predetermined angle with respect to the fixed portion 66 as shown in FIG. As a result, the teeth 71 of the rotating portion 67 engage with the lock member 65 of the cylinder 14, and the cylinder cap 63 is locked to the upper portion of the cylinder 14.
[0018]
With the configuration as described above, the residual amount of the packed frozen dessert 17 can be reduced as in the first embodiment, and leakage of brine due to biting of the end of the bag can be prevented. Furthermore, in Embodiment 4, since the cylinder cap 63 has the concave portion 62 having a shape corresponding to the convex portion 61 a of the piston 61 on the surface facing the bagging frozen dessert 17, the piston 61 is top dead in the cylinder 14. When the point position is reached, the space formed between the convex portion 61a and the concave portion 62 of the cylinder cap 63 becomes narrower, whereby the remaining amount of the packed frozen dessert 17 can be reduced.
[0019]
【The invention's effect】
In the frozen dessert supply device according to the present invention, the piston has a convex portion that bulges in the axial direction and the radial direction of the cylinder at the tip thereof, and the convex portion of the piston swells outward in the radial direction of the cylinder from the root portion. Since the protruding portion is provided, the residual amount of the frozen frozen dessert can be reduced, the yield can be improved, and the leakage of brine due to the biting of the bag end can be prevented.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing the overall structure of a frozen dessert supply apparatus according to Embodiment 1 of the present invention.
FIG. 2 is a cross-sectional view showing a structure in the vicinity of the piston in the first embodiment.
FIG. 3 is a diagram showing a state of a piston when it reaches a top dead center position of a cylinder in the first embodiment.
4 is a cross-sectional view showing a structure in the vicinity of a piston in a modification of the first embodiment. FIG.
FIG. 5 is a cross-sectional view showing a structure in the vicinity of a piston in a second embodiment.
FIG. 6 is a cross-sectional view showing a structure in the vicinity of a piston in a third embodiment.
FIG. 7 is a cross-sectional view showing lower surfaces of a piston and a cylinder cap in the fourth embodiment.
FIG. 8 is a side view showing a state in which the cylinder cap according to the fourth embodiment is attached to the upper part of the cylinder.
FIG. 9 is a plan view of a cylinder cap according to a fourth embodiment.
FIG. 10 is a cross-sectional view showing the overall structure of a conventional frozen dessert supply apparatus.
FIG. 11 is a cross-sectional view showing a state of a piston when reaching a top dead center position in a conventional cylinder.
[Explanation of symbols]
14 Cylinder, 17 Packed frozen dessert, 22, 63 Cylinder cap, 31, 33, 41, 51, 61 Piston, 31a, 33a, 42a, 52a, 61a Convex part, 32, 44, 54 Piston seal, 42 Sphere, 43, 53 Piston body, 43a, 53a Concave surface, 52 Tip member, 53b Step, 62 Concave, 64 Notch, 68 Protruding part, 69 Recess, 70 Positioning plate.

Claims (5)

In the frozen dessert supply device that extrudes the packed frozen dessert loaded in the cylinder by advancing the piston,
The piston is provided with a convex portion that bulges in the axial direction and radial direction of the cylinder at its tip ,
The protruding portion of the piston has a portion that bulges outward in the radial direction of the cylinder from the base portion thereof .   2. The frozen confection supply apparatus according to claim 1, wherein the convex portion of the piston is formed of a part of a sphere and is rotatable. The frozen dessert supply device according to claim 2, wherein an angle of rotation of the convex portion of the piston is restricted.   The cylinder cap provided with the recessed part of the shape corresponding to the convex part of the said piston is further provided in the surface which faces the cylinder inside while attaching to the edge part of a cylinder. Frozen dessert supply device.   The cylinder is provided with a notch for allowing the bagging frozen dessert outlet to pass outside at the edge thereof, and the cylinder cap is provided with an annular protrusion projecting to the peripheral edge of the recess, and the protrusion is provided with the notch. 5. The frozen confection supply apparatus according to claim 4, wherein a depression communicating with the recess is formed in the protruding portion so as not to interfere with an outlet of the packed frozen confectionery passed through.

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