JPH083394B2 - Ice crusher - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electric ice crusher that breaks an ice block made in a freezer or the like into small ice pieces.

[Prior Art] FIGS. 6 and 7 show an electric ice crusher which has been conventionally provided, and 1 in FIG. 6 is a main body case containing a motor (not shown) which is operated by receiving the electric power of a dry battery, A pair of crushing metal fittings 2 are attached to this in an inverted C-shaped arrangement. A crushing body 3 rotated by the power of the motor is provided between these crushing metal fittings 2, and below the crushing metal fitting 2 and the crushing metal 3, a container 4 having an upper surface opening is indicated by an arrow indicated by a solid line in FIG. It is detachably attached along the direction of.

The crushing body 3 is arranged with its axis horizontal, and as shown in FIG. 7, a plurality of collar portions 6 are integrally projected around the fitting shaft portion 5 on which the rotary shaft of the motor is mounted. A main body 7 made of synthetic resin, two pivots 8 penetrating the collar 6 and provided in parallel with the fitting shaft 5, and a plurality of crushing rods 9 rotatably attached to the pivots 8. Are formed from. Each crushing rod 9 passes through the recess 2a of the crushing metal fitting 2 as the crushing body 3 rotates.

When this ice crusher is used, about 1 to 3 ice blocks A are thrown into the space having the crushing metal fitting 2 and the crushing body 3 at the bottom while the motor is operating, while observing the crushing condition. Then, the crushing rod 9 can be vigorously collided with the lump of ice A riding on the crushing metal fitting 2 and the crushing body 3 by centrifugal force, so that the lump of ice is crushed into small pieces of ice by repeating the same, and the concave portion of the crushing metal fitting 2 is depressed. It can be passed through 2a and received by the lower container 4.

[Problems to be Solved by the Invention]

However, in the conventional one, since the crushing rod 9 is rotatably supported, it escapes in the counter-rotational direction when the ice block A is crushed, so that the crushing efficiency is poor and it takes a long time to crush. There is a problem of needing it.

In the conventional configuration, when the crushing rod 9 is fixed and the driving force of the motor is increased, there is no guarantee that the ice lump A will be properly cracked by one impact, so there is a possibility of biting an uncrushed ice lump. This increases the possibility that the rotation of the crushing body 3 is hindered and the motor burns out, which is not practical.

Further, in the conventional structure, the structure of the crushing body 3 is the seventh.
As shown in the figure, there is a problem that it is complicated and therefore costly.

A first object of the present invention is to improve the crushing efficiency, to produce a desired amount of ice pieces having a certain roughness in a short time, and to have a simple structure and to reduce the shaking caused by the crushing of ice blocks. The aim is to obtain an ice crusher with good self-sustaining stability of the ice block.

A second object of the present invention is to obtain an ice crusher that can further improve the crushing efficiency of ice blocks and further reduce the shaking at that time.

[Means for solving the problem]

In order to achieve the first object, the invention according to claim 1 is a container having an open upper surface, a rotary shaft that is provided so as to penetrate a bottom wall of the container and that is rotated by the power of a motor, It is equipped with a crushing base, has at least one crushing protrusion on the upper surface of the crushing base, and forms an ice piece storage cavity between the crushing base and the lower inner surface of the container, and is attached to the upper part of the rotating shaft. The crushed body and the container are detachable from the crushed body, and are arranged in the container facing the crushed base at a position above the crushed body and the ice piece storage space, and from the lower end opening to the upper end opening. And an ice lump throwing tube having a shape that becomes larger in diameter toward the inner circumference of the container, and at least a lower outer surface of the ice lump throwing tube is provided so as to project toward the inner peripheral surface of the container, and the tip thereof is close to the inner peripheral surface of the container. With A support rib having an installation lower end at substantially the same height as the lower end of the ice block throwing tube, and a support rib formed between the lower end of the ice block throwing tube and the upper surface of the crushing base, and in the ice piece storage space. It is provided with a continuous ice piece outlet gap and a lid provided so as to cover the upper end opening of the ice block charging cylinder.

Further, in order to achieve the second object, the invention according to claim 2 is characterized in that a vertical rib extending in the axial direction of the cylinder is provided on the inner surface of the ice block charging cylinder.

[Action]

In the invention of claim 1, when the ice chunk is thrown into the ice chunk throwing cylinder and the motor is operated with the upper end opening of this barrel covered with the lid, the crushing body rotates together with the rotating shaft, so that the crushing convex portion of the crushing body is The ice blocks collide with the ice blocks located inside the lower end of the ice block input cylinder, and these ice blocks are crushed into fine ice pieces.

By the way, since the ice lump input cylinder has a larger diameter from the lower end opening toward the upper end opening, when the ice lumps put into the inside receive the upward force due to the crushing operation, the ice lumps The uppermost ice block of the group can be easily moved laterally. In addition, the ice lump input cylinder supports a part of the ice lumps charged therein, and can reduce the weight of the bottom ice lump crushed by the crushed bodies.

Therefore, as a result of these, it is possible to increase the degree of freedom of movement of the ice blocks when receiving the upward force, so that the ice blocks that are crushed during the crushing of the ice blocks by the crushing protrusions can easily escape upward, Correspondingly, the rate at which the crushing energy is transmitted to the lower portion of the ice lump input cylinder through the crushed ice lumps can be reduced. Therefore, the impact given to the ice lump input cylinder accompanying the crushing operation is reduced. Moreover, the support ribs projecting on the outer surface of the ice block throwing tube immediately contact the inner peripheral surface of the container so as to prevent the ice block throwing tube from moving when the lower part of the ice block throwing tube tries to sway. Therefore,
It is possible to suppress the shaking of the container that supports the ice block input cylinder to a small level.

Then, the ice pieces made as described above are discharged along the upper surface of the crushing base of the crushed body by centrifugal force through the ice piece outlet gap between the crushing base and the lower end of the ice lump input cylinder, Is stored at the bottom of the. When the ice pieces are made in this way, the lid prevents the fine pieces of ice that are crushed and directed upward from being scattered from the upper end of the ice block input cylinder to the outside.

Further, since the crushed body of this ice crusher has a structure in which a crushing convex portion is projected on the upper surface of the crushing base facing the lower end opening of the ice lump input cylinder and is attached to the rotating shaft, many crushers like the conventional one are used. Since parts and pivots are not necessary, therefore, the number of constituent parts is small, the structure is simple, and it can be obtained at low cost.

Also, after crushing the ice blocks, to remove the ice pieces that have accumulated in the lower part of the container, remove the ice block insertion tube from the container and reverse the container, but the ice blocks removed before that The input cylinder is self-supporting with its lower end placed on an appropriate placement surface.

By the way, as described above, the ice lump input cylinder has a large diameter from the lower end opening to the upper end opening in order to increase the degree of freedom of movement of the ice lump inside thereof, so that the stability is not good as it is. However, since the installation lower end of the supporting rib protruding to the outer surface in order to suppress the shaking is located at substantially the same height as the lower end of the ice block throwing tube, this supporting rib should improve the self-cylinder stability of the ice block throwing tube. You can

Further, in the invention of claim 2, when an ice block is thrown into the ice block feeding cylinder unevenly, the ice block group may sway around with the unbalanced weight distribution. Since it is possible to reduce the unbalance by hindering the whirling, it is possible to reduce the sway of the ice lump charging cylinder. In addition, the crushed body easily hits the lumps of ice that are prevented from whirling by the vertical ribs, so that the crushing time can be shortened.

〔Example〕

A first embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 11 in FIG. 1 denotes a cooker main body, for example, a mixer main body, in which a motor (not shown) is incorporated.
12 are formed. A metallic drive shaft 13 is projected upward at the center of the upper surface of the main body 11. The drive shaft 13 is rotated in conjunction with the motor, and a drive coupling 15 made of synthetic resin is fixed to the upper end of the drive shaft 13. The above-described configuration is a well-known configuration in a mixer.

Reference numeral 16 in FIGS. 1 to 3 denotes a vertically elongated container having a fixed cylindrical shape, which integrally has a cylindrical container stand 17 provided below the bottom wall 16a thereof. As shown in FIG. 1, the container 16 has a container base 17 whose inner peripheral surface overlaps with the container mounting protrusions 12, and is detachably fitted over these protrusions 12 so that the mixer main body 11 It can be installed upright on the top.

The container 16 is made of transparent or opaque synthetic resin, and a metal rotary shaft 18 penetrating the bottom wall 16a in the vertical direction is rotatably supported by a bearing 19 at the center of the bottom wall 16a. A driven coupling 20 made of synthetic resin is fixed to the lower end of the rotary shaft 18. This coupling 20 is a container 16
Is set on the upper surface of the mixer body 11, and at the same time, is engaged with the drive coupling 15. In addition, the container 16 is
It is disengaged from the drive coupling 15 at the same time as it is removed from 11.

An ice lump charging cylinder 21 made of synthetic resin, which is shorter and has a smaller diameter than this, is detachably arranged in the upper part of the container 16. The throw-in cylinder 21 is shorter than the container 16, and its upper and lower ends are open. The ice chunk feeding cylinder 21 has a straight pipe portion 21b whose diameter does not change at its lower portion, and a short taper pipe portion 21c which is continuous with the upper end of the straight pipe portion 21b and gradually increases in diameter toward the upper end opening.
And an upper straight crushing portion 21d connected to the upper end of the tapered pipe portion 21c and having a diameter larger than that of the straight pipe portion 21b.

The length (height) A of the straight pipe portion 21b is set to 20 to 30 mm.
This is a dimension equal to the maximum length of one side of the ice block formed in the ice tray of the domestic refrigerator, thereby minimizing the vertical stacking of the ice blocks in the straight pipe portion 21b, and The upper escape function of the is not significantly impaired. Moreover, a ring-shaped flange portion 21a is integrally provided along the entire circumference of the upper end opening edge of the ice block charging cylinder 21, and the flange portion 21a is placed on the upper surface of the upper end opening portion of the container 16 as shown in FIG. It is supposed to be done.

A plurality of support ribs 28 are integrally provided on the outer surface of the ice block 21 so as to project in the direction of the inner peripheral surface of the container 16. In the case of the present embodiment, these ribs 28 extend in the axial direction of the ice block feeding cylinder 21, are continuously formed from the lower end to the upper end of the cylinder 21, and are provided at three or more places. The height position of the installation lower end 28a of these supporting ribs 28 and the ice block 21
The height position of the lower end opening is, for example, the same height position.

The support ribs 28 may be provided continuously or discontinuously on the outer surface of the ice block charging cylinder 21 along the circumferential direction, and may be provided on at least the lower outer surface of the ice block charging tube 21.
A plurality of short ribs (not shown) are formed on the outer surface of the upper portion of the ice block 21 for the same purpose as projecting the supporting ribs 28, that is, for suppressing the movement of the ice block 21. .

In the case of the present embodiment, the ice lump charging cylinder 2 having the above-mentioned structure is formed of a synthetic resin material having high elasticity such as polyethylene resin, polypropylene resin, nylon resin. Thereby, as compared with the case of molding with a synthetic resin having poor elasticity such as a polyacetal resin, a polycarbonate resin, or an ABS resin, it is possible to reduce the risk that the ice block input cylinder 21 will be damaged by the impact at the time of ice block crushing described later. By the elastic deformation, the impact is alleviated and the impact noise is reduced.

The upper end opening of the ice block 21 is a transparent synthetic resin lid.
It is covered with 22. The lid 22 is attached by engaging a pair of hooking portions 22a integrally provided on the periphery thereof with the lower surfaces of a pair of first engaging protrusions 16b integrally provided on the outer surface of the opening edge of the container 16. And this lid 22 is the container
By being attached to the container 16, the entire flange portion 21a is sandwiched between the container and the opening edge portion of the upper surface of the container 16 so that the shaking of the ice block insertion cylinder 21 at the time of crushing the ice block can be suppressed.

In the figure, 16c is a first hooking protrusion provided below the first hooking protrusion 16b. The second hooking convex portion 16c is used to attach the lid 22 to the container 16 when the ice block charging cylinder 21 is detached and used as, for example, a whip. In addition, the engagement and disengagement of the hook portion 22a with the both engaging protrusions 16b and 16c is performed by the lid 22.
Is carried out by rotating in the circumferential direction.

A synthetic resin connecting member 23 is fixed to the upper portion of the rotary shaft 18. Although details of the member 23 are not shown, the member 23 is tapered toward the upper end, and the upper and lower surfaces of the member 23 are formed with a tapered locking projection formed of inclined surfaces whose upper and lower surfaces are opposite to each other. A pair of ribs is provided. This connecting member
A crushing body 24 arranged in the lower part of the container 16 is detachably attached to the 23.

The crushed body 24 is arranged in the lower central position in the container 16, and an ice piece storage space S is formed between this and the lower inner peripheral surface of the container 16. The void S is below the crushing base, which will be described later, and surrounds the crushed body 24.

The crushing body 24 is made of a synthetic resin such as polyacetal and has a disk-shaped crushing base (hereinafter referred to as a crushing base) at the upper end of a fitting tubular portion 24a that is detachably fitted to the connecting member 23 as shown in FIGS. , The disc portion 24b) are integrally provided, and the disc portion 2
At least one crushing protrusion 25 is formed on the upper surface of 4b in a protruding manner. The crushing convex portion 25 is provided, for example, by bending one end of a metal strip 26 attached flush with the upper surface of the disc portion 24b to the upper side.
It may be formed integrally with b, or may be formed in a rod shape or the like.

In addition, a pair of slit grooves (not shown) into which the above-mentioned ribs are inserted are formed in the fitting tubular portion 24a, and an annular groove is formed so as to cross these grooves. Spring 27 is attached.
Therefore, by aligning the rib and the slit groove and fitting the fitting cylinder portion 24a to the connecting member 23, the ring spring 27 is spread by the upper oblique surface of the locking convex portion, When 27 gets over the tip of the locking projection, immediately after that, the ring spring 27 is restored by its elastic force and locks at the root of the upper oblique surface of the locking projection, and the crushed body 24 Are easily attached to the connecting member 23. Further, by pulling up the crushed body 24 from this attached state, the crushed body 24 can be easily removed from the connecting member 23 with the operation of the ring spring 27 similar to that described above.

With the above-mentioned attachment, the upper surface of the disk portion 24b of the crushed body 24 provided below the ice lump input cylinder 21 has the ice lump input cylinder 2
The ice piece outlet gap G is formed between the lower end opening and the disc portion 24b while being arranged so as to face the lower end openings so as to form the bottom of the unit 1. This gap G is formed to be smaller than the size of an angular ice block made in a freezer of a refrigerator used in a general household, and its size (that is, between the lower end of the straight pipe portion 21b and the upper surface of the disc portion 24b). The height dimension B) is about 10 mm.

The ice crusher having the above configuration is attached to the upper surface of the mixer body 11 for use. In other words, the lid 22
Remove the ice block into the ice block input tube 21 from the upper end opening and insert, for example, about 7 to 8 ice blocks made in the ice tray of the freezer, and after closing the lid 22, rotate the motor by operating the commercial AC power supply. Rotate shaft 18.

Then, since the crushing body 24 rotates together with the rotating shaft 18 via the connecting member 23, the crushing convex portion 25 collides with the ice lump, and the impact at that time crushes the ice lump one after another to form small ice pieces. it can. Then, the ice pieces that have been crushed and become smaller are discharged through the ice piece outlet gap G by the centrifugal force of the crushing body 24, and in the lower part of the container 16, in other words,
The crushed body 24 is dropped and stored in an ice piece storage space S surrounding the crushed body 24.

The ice pieces created in this way do not accumulate in the lower part of the ice block input cylinder 21, but are successively discharged and stored in the ice piece storage space S provided below the ice block injection cylinder 21. All the ice blocks put into the inside 21 can be turned into ice pieces and stored in the lower part of the container 16.

Moreover, since the size of the ice pieces to be produced is restricted by the size of the ice piece outlet gap G, it is possible to make ice pieces having a certain roughness according to this gap G and store them in the lower portion of the container 16. .
The time required to complete the crushing of the ice blocks is about 7 seconds.

Therefore, according to the crushing structure as described above, since the crushing convex portion 25 does not escape when breaking the ice block, the crushing efficiency can be improved, and a desired amount of ice pieces can be formed in a shorter time compared to the conventional case. , The ice block can be taken out of the ice block 21 and stored in the ice piece storage space S below it, and the ice blocks need only be put into the ice block injection cylinder 21 at one time, and the operation is continued during the operation of the motor. There is no trouble of supplying ice blocks little by little.

When crushing the ice lump as described above, a force that causes the ice lump input cylinder 21 to sway along with the crushing acts, and at the same time, the container
Although an attempt is made to shake the container 16, the shaking of the container 16 can be suppressed small for the following reasons.

Since the ice lump input cylinder 21 has a taper pipe portion 21c having a large diameter as it goes from the lower side to the upper side, when the ice lump group located inside thereof receives an upward force by the crushing operation described above. In addition, it becomes easy for the uppermost ice block of this ice block group to move laterally. In addition, the tapered tube portion 21c supports a part of the ice chunks thrown inside the tapered tube portion 21c, and the crushing convex portion
The weight of the bottom ice block crushed by 25 can be reduced.

As a result, the degree of freedom of lateral movement of the ice blocks when the upward force is applied by the above-described crushing action is increased, and the ice blocks that are crushed during the crushing of the ice blocks by the crushing protrusions 25 are removed. It can be easily released upward. By escaping the ice lumps in this manner, the rate at which the crushing energy is transmitted to the lower portion of the ice lump input cylinder 21 via the crushed ice lumps can be reduced.

Therefore, the impact applied to the ice block charging cylinder 21 due to the crushing is reduced, and the fluctuation of the charging cylinder 21 and the fluctuation of the container 16 can be suppressed to a small level.

Moreover, since the supporting ribs 28 are projected on the outer surface of the ice block throwing cylinder 21, when the lower part of the ice block throwing cylinder 21 is shaken by an impact generated in the lower part of the ice block throwing cylinder 21 due to the crushing of the ice block, the supporting ribs 28 are Immediately contact the inner peripheral surface of the container 16, and support the ice block throwing cylinder 21 in the container 16 via this support rib 28,
The upset can be prevented. Therefore, the shaking of the container 16 can be reduced.

Due to the above shaking prevention action, even if you do not press the lid 22 by hand when using this ice crusher,
Due to the shaking of 16, the container base 17 of this container 16 and the mixer main body 11
There is no fear that the fitting with the container mounting convex portion 12 will be accidentally disengaged.

In addition, in the present embodiment, the ice block input cylinder 21 has an upper straight pipe portion 21d. Therefore, when the amount of ice blocks is reduced and the ice blocks are flipped upward by the crushing protrusions 25, they are guided by the vertical inner peripheral surface of the upper straight pipe portion 21d and quickly returned to the lower side to crush protrusions. Since it can be brought into contact with the portion 25, the time required to complete the crushing can be further shortened.

The ability to shorten the crushing time in this way is advantageous in the following points. That is, although the ice pieces that have become finer by crushing are easier to melt, the shortening of the crushing time allows the crushing to be completed before the ice pieces stored in the lower portion of the container 16 begin to melt, so the ice pieces are taken out of the container 16. It is preferable for use.

Further, in the above-mentioned configuration, the crushed body 24 has the crushed convex portion 2 on the upper surface of the disk portion 24b facing the lower end opening of the ice block charging cylinder 21.
Fitting cylinder part 24a protruding from 5 and attached to the rotary shaft 18
Since it is configured to have, it is possible to eliminate the need for many collars, pivots and the like as in the conventional case. Therefore, the number of components is small, the structure is simple, and it can be obtained at low cost.

Further, when the ice pieces produced by crushing are taken out from the container 16, the ice mass feeding cylinder 21 is taken out of the container 16 prior to the removal of the lid 22, and the ice mass charging cylinder 21 is appropriately placed. It is placed on the surface independently. By the way, as described above, the ice lump input cylinder 21 has a large diameter from the lower end opening to the upper end opening in order to increase the degree of freedom of movement of the ice lump inside the ice lump 21, so that the stability is not good as it is. . But,
On the outer surface of the ice block charging cylinder 21, a plurality of ribs 28 projecting in order to suppress the shaking are provided to project, and the mounting lower end 28a and the lower end of the ice block charging cylinder 21 are at substantially the same height position, The mounting lower surface 28a of the ribs 28 is in contact with the mounting surface described above, whereby the self-sustaining stability of the ice block insertion cylinder 21 can be enhanced.

In the second embodiment of the invention shown in FIGS. 4 and 5,
In the structure of the first embodiment, vertical ribs 29 extending in the axial direction of the ice block 21 are integrally formed on the inner surfaces of the upper and lower straight pipe portions 21b and 21d. Since the configuration other than this point is the same as that of the first embodiment including the points not shown, the same reference numerals are given to the same components and the description thereof will be omitted.

Rotation of the crushing body 24 imparts a rotational motion along the inner peripheral surface of the ice block charging cylinder 21 to the ice block group charged in the ice block charging tube 21. When the distribution of ice blocks is not uniform due to such a rotational movement, the ice block groups sway while maintaining their unbalance, which causes the ice block charging cylinder 21 to wobble and cause the container 16 to sway.

However, according to the configuration in which the vertical ribs 29 are provided as in the present embodiment, the whirling motion along the inner peripheral surface of the ice block input cylinder 21 of the ice block group can be prevented, so that the shaking of the container 16 is reduced. Is effective for. Moreover, the ice blocks are disturbed when the whirling motion is hindered by the vertical ribs 29, so that the ice blocks and the crushing protrusions 25 easily come into contact with each other, and as a result, the time required to complete the crushing can be shortened.

The present invention is not limited to the above embodiments. For example, the crushed body 24 may be fixedly attached to the rotary shaft 18. Further, the lid 22 may be sized corresponding to the upper end opening of the ice block throwing cylinder 21, and may be detachably attached directly to the upper end opening.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects.

According to the ice crusher of the invention of claim 1,
An ice lump charging cylinder whose upper surface is covered with a lid is detachably provided in the container with the upper opening, and a crushing body which is arranged below the cylinder and forms an ice piece storage space with the lower inner surface of the container is connected to the motor. It is driven by the power of and attached to the rotating shaft that penetrates the bottom wall of the container,
Since an ice piece outlet gap was provided between the crushing base of the crushed body and the lower end of the ice lump input cylinder, a crushing convex portion for finely crushing the ice lump in the ice lump input cylinder was projected on the upper surface of the crushing base,
Not only can you provide a vertical ice crusher, but you can also improve the efficiency of crushing ice blocks, make a desired amount of ice pieces of a certain roughness in a short time, and obtain a simple and inexpensive crushed body structure. . Moreover, since the ice lump throwing cylinder has a large diameter from the lower end opening toward the upper end opening, a supporting rib is provided on the outer surface of the ice lump throwing cylinder, so that the impact given to the ice lump throwing cylinder due to the crushing is prevented. In addition to being able to reduce the number, the support ribs can suppress the shaking of the ice block,
It is possible to suppress the shaking of the container supporting the ice lump input cylinder to be small. Moreover, by setting the installation lower end of the support rib and the lower end of the ice lump input cylinder at substantially the same height position, it is possible to enhance the self-standing stability when the ice lump input cylinder is taken out of the container to be self-supporting.

Further, according to the ice crusher of the invention of claim 2, the vertical ribs provided in the ice lump input cylinder prevent whirling of the uneven ice lumps, and also provide an opportunity for contact between the ice lumps and the crushing protrusions. Since it becomes larger, the crushing efficiency of the ice blocks can be further improved, and the shaking at that time can be further reduced.

[Brief description of drawings]

1 to 3 show a first embodiment of the present invention, FIG. 1 is a longitudinal sectional view, FIG. 2 is an exploded perspective view, and FIG. 3 is a plan view with a lid removed. 4 and 5 show a second embodiment of the present invention,
The figure is a longitudinal sectional view, and FIG. 5 is a plan view with the lid removed. 6 and 7 show a conventional example, FIG. 6 is a perspective view,
FIG. 7 is a front view showing a partially fragmented crushed body. 16 ... Container, 16a ... Bottom wall, 18 ... Rotating shaft, 21 ... Ice block injection cylinder, 21c ... Tapered pipe part, 22 ... Lid, 24 ... Crushed body, 25 ... Crushed convex part, 27 ...... Disc part (crushing base), 28
…… Support ribs, 28a …… Lower ends of support ribs, S …… Ice piece storage space, G …… Ice piece outlet gap.

Claims (2)

[Claims] 1. A container having an open upper surface, a rotary shaft which penetrates a bottom wall of the container and is rotated by the power of a motor, and a crushing base, and at least one of which is provided on the upper surface of the crushing base. A crushing body which has two crushing projections and which is attached to the upper part of the rotating shaft by forming an ice piece storage space between the container and the lower inner surface of the container; An lump of ice cube that is disposed in the container facing the crushing base at a position above the crushed body and the ice piece storage space, and has a diameter increasing from the lower end opening to the upper end opening. At least the outer surface of the lower portion of the ice block charging container is provided so as to project in the inner peripheral surface direction of the container, the tip thereof is close to the inner peripheral surface of the container, and is located at substantially the same height as the lower end of the ice block charging container. A supporting rib having an installation lower end, an ice piece outlet gap formed between the lower end of the ice block throwing cylinder and the upper surface of the crushing base, and connected to the ice piece storing space, and an upper end of the ice block throwing cylinder. An ice crusher equipped with a lid that covers the opening. 2. The ice crusher according to claim 1, wherein a vertical rib extending in the axial direction of the cylinder is provided on the inner surface of the ice block charging cylinder.