JP5836458B1 - Ice machine - Google Patents

Abstract

An object of the present invention is to make it possible to cut all of the ice put into an ice container of an ice shaving machine as shaved ice without remaining. An ice scraper 10 includes an ice container 12 having a frustoconical inner peripheral surface extending upward, an ice cutting blade 13 projecting inside the ice container 12, and an ice container 12. A rotary blade 30 rotatably provided about a vertical direction as an axis, and the rotary blade 30 is rotatably supported at the center of the bottom of the ice container 12, and the inner periphery of the ice container 12 from the hub 31. A plurality of blade portions 32 extending outward along the surface, and an annular cover portion 33 that is connected to each upper edge of the plurality of blade portions 32 and covers the upper side of the ice container 12. On the upper edge of 32, an inclined portion 35 having an inclined surface 35a that is inclined upward as it proceeds in the rotation direction is provided on the surface facing the rotation direction of the rotary blade 30 between the lower surface of the annular cover portion 33. [Selection] Figure 3

Description

  The present invention relates to an ice shaving machine for producing shaved ice.

  Patent Document 1 discloses an ice shaving machine for producing shaved ice such as shaved ice. This ice-cutting machine has an ice container comprising an ice container having a frustoconical inner peripheral surface provided on the upper side of a base casing incorporating a motor, and a slit formed in the direction of the generatrix on the peripheral surface of the ice container. And an ice cutting blade provided projecting from the inside of the ice container and a rotating blade provided rotatably in the ice container. A rotating blade of the ice scraper includes a hub rotatably supported at the center of the bottom portion of the ice container, a plurality of blade portions extending outward from the hub along the inner peripheral surface of the ice container, and a plurality of blade portions And an annular cover portion that is connected to each upper edge and covers the upper side of the ice container.

  In this ice shaving machine, the rotating blades are rotated in the ice container by driving the motor, and the ice contained in the ice container is rotated together with the plurality of blade parts to apply centrifugal force to thereby add the inside of the ice container. The ice pressed against the peripheral surface and scraped against the inner peripheral surface of the ice container while rotating is scraped off by an ice cutting blade and discharged from the ice discharge port as shaved ice.

Japanese Utility Model Publication No. 63-139462

  In the ice shaving machine configured as described above, when 7 to 8 cube-shaped ice cubes with a side of about 3 cm are put into an ice container and the rotating blades are rotated in the ice container, they are put into the ice container. The resulting ice rotates in the ice container together with the blades of the rotating blades and is given a horizontal centrifugal force. The centrifugal force applied to the ice cube is decomposed into a component force in a direction perpendicular to the inner peripheral surface of the frustoconical shape and a component force in a direction rising along the slope of the inner peripheral surface of the frustoconical shape. As ice rotates, it is pressed against the inner peripheral surface of the frustoconical shape and is cut by the ice cutting blade, and the slope of the inner peripheral surface of the frustoconical shape is raised. When the ice cubes are started to rotate by starting to rotate the blades, the ice cubes are cut while being pressed against the slope of the frustoconical inner peripheral surface of the ice container by its own weight and the weight of other ice cubes on the center side. The When most of the ice cubes in the ice container have been cut and the ice cubes remaining in the ice container have been thinly cut into plate ice, the angle before the centrifugal force applied to the plate ice is cut. Because it is weaker than ice, the plate-shaped ice is caught by the ice cutting blade at the upper part of the inner peripheral surface of the ice container and jumps upward. The jumped plate-shaped ice hits the ring-shaped cover of the rotary blade and It was falling to the bottom. Since the plate-shaped ice remaining in the ice container will repeatedly bounce and fall in the ice container, not all of the ice put into the ice container can be shaved and the production efficiency of shaved ice is increased. There was a problem that was not good, and there was a problem that an abnormal noise was generated when the plate-shaped ice repeatedly jumped and dropped. An object of the present invention is to make it possible to cut all of the ice charged into an ice container of an ice shaving machine as shaved ice.

  In order to solve the above-mentioned problems, the present invention provides an ice container comprising an ice container having a conical or frustoconical inner peripheral surface extending upward, and a slit formed along the direction of the generatrix on the peripheral surface of the ice container. Equipped with an ice cutting blade that protrudes from the outlet to the inside, and a rotary blade that is rotatable about the axis in the vertical direction in the ice container, and the rotary blade is rotatably supported at the center of the bottom of the ice container A plurality of blade portions extending from the hub along the inner peripheral surface of the ice container, and an annular cover portion connected to each upper edge of the plurality of blade portions and covering the upper side of the ice container, By rotating the rotating blade in the ice container, the ice contained in the ice container is rotated together with the plurality of blade portions, thereby applying an outward centrifugal force in the horizontal direction and pressing it against the inner peripheral surface of the ice container. The ice pressed against the inner surface of the ice container while rotating An ice scraper that is scraped off by a cutting blade and discharged as shaved ice from an ice discharge port, wherein the upper edge of the blade portion of the rotating blade has a rotational direction of the rotating blade between the lower surface of the annular cover portion. It is an object of the present invention to provide an ice-cutting machine characterized in that an inclined portion having an inclined surface that is inclined upward as it proceeds in the rotational direction is provided on the surface facing.

  In the ice shaving machine configured as described above, when ice is accommodated in the ice container and the rotating blade is rotated, the ice stored in the ice container rotates while being pushed by the blade portion of the rotating blade and horizontally The outward centrifugal force is applied. The horizontal outward centrifugal force applied to the ice rises along a component force in a direction perpendicular to the conical or frustoconical inner peripheral surface and along the conical or frustoconical inner peripheral surface. As the ice rotates, the ice is pressed against the slope of the inner peripheral surface of the cone or frustoconical shape while being rotated and cut by the ice cutting blade, and the ice rises on the slope of the inner peripheral surface of the cone or frustoconical shape. . The ice that has risen above the slope of the inner peripheral surface of the conical or frustoconical shape of the ice container tilts upward as it moves in the direction of rotation between the upper edge of the blade of the rotating blade and the lower surface of the annular cover. The inclined portion having the inclined surface is further pressed against the upper portion of the inclined surface of the inner peripheral surface of the cone shape or the truncated cone shape. Even when most of the ice in the ice container is cut, the ice is shaved small, and even if the centrifugal force weakens due to the ice being shaved small, the ice is conical or It becomes strongly pressed against the upper part of the slope of the inner peripheral surface having a truncated cone shape. Thereby, all the ice accommodated in the ice container can be cut as shaved ice, and the production efficiency of shaved ice could be improved. In addition, since the ice that remains after being shaved small in the ice container does not repeatedly jump, it becomes difficult for the user to become uncomfortable due to the abnormal noise caused by the jumping ice.

  In the ice cutting machine configured as described above, it is preferable that the inclined portion has a curved shape with the inclined surface recessed inward. In addition, it is preferable that the inclined portion becomes narrower as it goes outward from the center side of the ice container. In this case, the inclined surface of the inner peripheral surface of the cone shape or the truncated cone shape of the ice vessel is preferable. The ice rising to the upper part can be further pressed against the upper part of the slope of the inner peripheral surface of the conical or frustoconical shape.

It is a perspective view showing one embodiment of an ice shaving machine by the present invention. FIG. 2 is a longitudinal cross-sectional view along the front-rear direction of FIG. 1. It is the perspective view which looked at the rotary blade from diagonally downward. It is the schematic which shows the centrifugal force applied to ice cubes. The left side is shaved ice cut by the ice machine of this embodiment, and the right side is shaved ice cut by a conventional ice machine. It is a perspective view equivalent to FIG. 3 which shows the rotary blade of other embodiment.

  Hereinafter, an embodiment of an ice shaving machine according to the present invention will be described with reference to the drawings. As shown in FIG. 1, an ice scraper 10 according to the present invention includes a base casing 11 and an ice container 12 for storing ice on the upper side of the base casing 11. A motor 20 that rotates a rotating blade 30 described later is accommodated in the base casing 11. A drive shaft 22 is connected to the output shaft 20a of the motor 20 by a gear transmission mechanism 21, and the drive shaft 22 protrudes from the bottom wall of the ice container 12 so that the vertical direction is the axial direction.

  As shown in FIG. 2, the ice container 12 accommodates ice cubes, has an inner peripheral surface having a frustoconical shape that extends upward, and is integrally assembled on the upper side of the base casing 11. An ice discharge port 12a made of a slit formed along the direction of the bus is formed in the front portion of the peripheral surface of the ice container 12. An ice cutting blade 13 protruding from the ice discharge port 12a is attached to the outer peripheral surface of the ice container 12 at a position near the ice discharge port 12a. Further, on the outer peripheral surface of the ice container 12, a splash prevention guard 12b is integrally formed around the ice discharge port 12a to prevent the shaved ice falling from the ice discharge port 12a from scattering to the surroundings.

  As shown in FIG. 2, a rotating blade 30 is detachably attached to the upper end portion of the drive shaft 22 inside the ice container 12, and the rotating blade 30 has a vertical direction around the axis in the ice container 12. It is provided so that it can rotate. The rotary blade 30 is rotated by the rotational drive of the drive shaft 22 that is rotated by the drive of the motor 20 to rotate the ice cubes stored in the ice container 12. As shown in FIGS. 2 and 3, the rotary vane 30 has a hub 31 supported by the drive shaft 22 at the center of the bottom of the ice container 12, and the hub 31 extends along the inner peripheral surface of the ice container 12. Three (plural) blade portions 32 extending obliquely upward, an annular cover portion 33 connected to each upper edge of the blade portion 32 and covering the upper side excluding the central portion of the ice container 12, and an annular cover portion 33 And a cylindrical chute 34 provided at the ice inlet 33a.

  As shown in FIG. 2, the blade portion 32 of the rotary blade 30 rotates the ice cubes stored in the ice container 12 in the ice container 12 and applies an outward centrifugal force to the ice cubes in the horizontal direction. It is. As shown in FIG. 3, the blade 32 rotates from the position divided into three equal parts in the circumferential direction of the hub 31 provided at the center of the bottom of the ice container 12 in the direction opposite to the rotation direction of the rotary blade 30. It extends spirally away from the center. The lower edge of the blade 32 extends obliquely upward along the inner peripheral surface of the ice container 12. Further, a gap is formed between the lower edge of the blade portion 32 and the inner peripheral surface of the ice container 12, and the above-described ice cutting blade 13 has a length that does not contact the blade portion 32 rotating in the ice container 12. And protrudes into the ice container 12.

  As shown in FIGS. 2 and 3, the upper edge of the blade portion 32 is provided with an annular cover portion 33 that covers the upper side of the ice container 12. It is for preventing it from jumping out of the upper side of. An ice slot 33 a is formed at the center of the annular cover 33, and a cylindrical chute 34 for guiding ice into the ice container 12 is provided at the ice slot 33 a.

  As shown in FIGS. 2 and 3, each upper edge of the blade portion 32 is provided with an inclined portion 35 on the surface facing the rotation direction of the rotary blade 30 between the lower surface of the annular cover portion 33. Yes. The inclined portion 35 has an inclined surface 35a that is inclined upward as it advances in the rotational direction (the right-hand side of FIG. 3 shows a conventional rotating blade for easier understanding of the inclined portion 35. ). The inclined surface 35a of the inclined portion 35 causes the ice cube 12 to rise to the inclined surface of the inner peripheral surface of the ice container 12 which rises the inclined surface of the inner peripheral surface of the ice container 12 when the rotary blade 30 is rotated. It is for pressing. The inclined surface 35a of the inclined portion 35 has a curved shape so as to be recessed inward. Further, the inclined surface 35 a of the inclined portion 35 becomes narrower as it goes outward from the center side of the ice container 12.

  As shown in FIGS. 1 and 2, a lid body 14 is provided on the upper side of the ice container 12, and the lid body 14 is detachably attached to the ice container 12 by a bayonet coupling mechanism. In addition, an opening 14a for pouring ice cubes into the ice container 12 through a chute 34 is formed at the center of the lid 14 and the opening 14a is closed at the rear of the lid 14 so as to be freely opened and closed. A cover 15 is attached to be rotatable about a horizontal axis. Further, the cover 15 has a function of an operating component for driving the motor 20, and the motor 20 can be driven by pushing the cover 15 downward while the opening 14 a is closed.

  The operation of the ice shaving machine 10 configured as described above will be described. First, the cover 15 of the lid 14 is opened, and 7 to 8 ice cubes having a substantially cubic shape with a side of about 3 cm are put into the ice container 12 from the opening 14a of the lid 14. The 7 to 8 ice cubes are suitable for cutting one person's shaved ice. When 7 to 8 ice cubes are accommodated in the ice container 12, the ice cubes are almost full. When the cover 15 of the lid 14 is closed and the cover 15 is pushed downward, the motor 20 is driven, and the rotating blade 30 is driven by the motor 20 to rotate inside the ice container 12. The ice cubes accommodated in the ice container 12 are rotated together with the blade portion 32 of the rotary blade 30 to be applied with a centrifugal force and pressed against the inner peripheral surface of the ice container 12. The pressed ice cubes are scraped off by the ice cutting blade 13 and discharged from the ice discharge port 12a as shaved ice.

  The ice cube 12 rotating in the ice container 12 will be described in detail. As shown in FIG. 4, the ice cube in the ice container 12 is pushed by the blade portion 32 of the rotating blade 30 and rotated to face outward in the horizontal direction. The centrifugal force F is applied. The centrifugal force F applied to the ice cube is a component force F1 in a direction orthogonal to the slope of the inner peripheral surface of the frustoconical shape of the ice container 12 and a component force in a direction rising along the slope of the inner peripheral surface of the frustoconical shape. Decomposed into F2. At this time, the ice cubes are pressed against the inner peripheral surface of the frustoconical shape of the ice container 12 while rotating and are being cut by the ice cutting blade 13, and ascend the slope of the inner peripheral surface of the frustoconical shape of the ice container 12. When ice cubes rising on the inner peripheral surface of the frustoconical shape of the ice container 12 collide with the inclined surface 35a of the inclined portion 35 provided on the upper edge of the blade portion 32 of the rotary blade 30, the ice cube 12 follows the slope imparted to the ice cube. A part of the component force F2 in the upward direction is converted into a force pressing the upper part of the inner peripheral surface of the truncated cone. As described above, the ice cubes rising above the frustoconical inner peripheral surface of the ice container 12 are further strongly pressed against the frustoconical inner peripheral surface of the ice container 12 by the inclined portion 35 provided at the upper part of the blade portion 32.

  When most of the ice cubes in the ice container 12 are cut and the ice cubes remaining in the ice container 12 are thinly cut into small plate ice, the centrifugal force applied to the plate ice is applied to the ice cubes. It becomes weaker than the centrifugal force. The plate-shaped ice remaining in the ice container 12 is rotated in the state of being raised to the upper part of the ice container 12 by the above-described component force F2, and the plate-shaped ice is rotated by the inclined portion 35 while rotating the upper part of the ice container 12. The ice container 12 is further strongly pressed against the upper part of the inner peripheral surface of the frustoconical shape. The ice cut into a plate shape in the ice container 12 is strongly pressed against the inner peripheral surface of the ice container 12 while rotating without jumping upward at the upper part in the ice container 12, and the ice in the ice container 12 remains. Without being cut by the ice cutting blade 13. As a result, all of the ice cubes stored in the ice container 12 can be made into shaved ice, and the production efficiency of shaved ice can be improved. Further, since the plate-shaped ice remaining after being shaved small in the ice container 12 does not repeatedly jump, the user is unlikely to be uncomfortable due to abnormal noise caused by the jumping ice.

  In addition, when 7 to 8 ice cubes are scraped under the same conditions as described above with a conventional ice scraper that does not have the inclined portion 35 at the upper edge of the blade portion 32, the last plate-shaped ice remains. Since it repeatedly jumps up in the upper part of the ice container 12, all of the ice in the ice container 12 cannot be cut, and it takes about 40 seconds to cut most of the ice cubes in the ice container 12. However, in the ice cutting machine 10 of this embodiment, not only can all ice cubes in the ice container 12 be cut, but all ice cubes in the ice container 12 can be cut in a short time of about 30 seconds. It became possible to cut ice cubes into ice in a short time. Furthermore, as shown in FIG. 5, when the shaved ice cut by the ice shaving machine 10 of this embodiment is compared with the shaved ice cut by the conventional ice shaving machine, it can be understood from the bulk of the shaved ice. It is now possible to produce fluffy and well-melted shaved ice like scraped ice cubes.

  The inclined portion 35 provided on the upper edge of the blade portion 32 of the rotary blade 30 has a curved shape so as to dent the inclined surface 35a inward as shown in FIG. 3, but the present invention is limited to this. As shown in FIG. 6, the inclined surface 35a may be a flat shape without being recessed inward, and the same effects as described above can be obtained even in this case. be able to.

  In the above embodiment, the inner peripheral surface of the ice container 12 has a truncated cone shape that extends upward. However, the present invention is not limited to this, and the inner peripheral surface of the ice container 12 has a conical shape that extends upward. Even in this case, the same effect as described above can be obtained.

  In the above embodiment, the rotary blade 30 is rotated by driving the motor 20, but the present invention is not limited to this, and the rotary blade 30 is manually rotated by using, for example, a manual lever. In this case, the same effect as described above can be obtained.

  In the above embodiment, the number of the blade portions 32 of the rotary blade 30 is three. However, the present invention is not limited to this, and the number of the blade portions 32 may be two or four or more. In addition, the same effect as described above can be obtained.

  DESCRIPTION OF SYMBOLS 10 ... Ice-shaving machine, 12 ... Ice container, 12a ... Ice discharge port, 13 ... Ice cutting blade, 30 ... Rotating blade, 31 ... Hub, 32 ... Blade part, 33 ... Toroidal cover part, 35a ... Inclined surface, 35 ... Inclined part.

Claims (3)

An ice container having a conical or frustoconical inner peripheral surface extending upward;
An ice cutting blade provided projecting from an ice discharge port formed of a slit formed along the direction of the generatrix on the peripheral surface of the ice container;
A rotating blade provided so as to be rotatable around the axis in the vertical direction in the ice container,
The rotating blade includes a hub rotatably supported at a central portion of a bottom portion of the ice container, a plurality of blade portions extending from the hub along an inner peripheral surface of the ice container, and upper portions of the plurality of blade portions. An annular cover part connected to the edge and covering the upper side of the ice container;
By rotating the rotating blade in the ice container, the ice contained in the ice container is rotated together with the plurality of blade portions to apply an outward centrifugal force in the horizontal direction, thereby An ice scraper that presses against an inner peripheral surface and scrapes off the ice pressed against the inner peripheral surface of the ice container while rotating with the ice cutting blade and releases the ice as scraped ice from the ice discharge port,
On the upper edge of the blade portion of the rotary blade, there is an inclined portion having an inclined surface that is inclined upward as it proceeds in the rotation direction on the surface facing the rotation direction of the rotary blade between the lower surface of the annular cover portion. An ice shaving machine characterized by the provision. The ice shaving machine according to claim 1,
The ice cutting machine, wherein the inclined portion has a curved shape with an inclined surface recessed inward. The ice shaving machine according to claim 1 or 2,
The ice scraper according to claim 1, wherein the inclined portion narrows the inclined surface as it proceeds from the center side of the ice container to the outside.