JPH05100B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electric meat grinder for general household and commercial use.

Construction of a conventional example and its problems A conventional electric meat grinder has a construction as shown in FIG. That is, in the figure, 1 is a main body, in which an electric motor 2 and a speed reduction device 3 are built. A transmission shaft 4 extends from the speed reducer 3 . One end of a screw casing 5 made of aluminum die-casting or the like having an input portion 5a is detachably attached to the main body 1, and a spiral chevron blade (not shown) is attached to the inner peripheral surface of the casing 5. ) are formed in several places. Casing 5
The outer periphery of the other end is a threaded portion 5b, and an end cover 6 having an outlet round hole 6a in the center is removably screwed onto this threaded portion 5b. Casing 5
Inside, a screw unit 7 is rotatably provided with a connected spiral chevron blade 7a on its outer periphery. One end of the screw unit 7 is a shaft portion 7b.
The engagement protrusion 7c formed on the shaft portion 7b removably fits into the engagement recess 4a formed at the tip of the transmission shaft 4, so that the driving force from the electric motor 2 is transferred to the screw unit. 7. The other end of the screw unit 7 is also formed as a shaft portion 7d, and a substantially cross-shaped rotating cutter 8 is fitted onto a rectangular engaging portion 7e formed on this shaft portion 7d. Therefore, the rotary cutter 8 can rotate together with the screw unit 7. A fixed cutter 9 having a large number of round holes is provided opposite the rotating cutter 8, and the other end shaft portion 7 of the screw unit 7 is mounted in the center of the fixed cutter 9.
d is rotatably received. Fixed cutter 9
has flanges (not shown) on the outer periphery at appropriate intervals, and by fitting these flanges into notches (not shown) formed at the other end of the casing 5, the fixed cutter 9 is prevented from rotating. Achieved. In addition, 10
11 is a hopper fitted to the upper part of the input portion 5a of the casing 5, and 11 is a push rod for pushing meat such as mutton placed in the hopper 10 from the input portion 5a into the casing 5.

In the above configuration, when the meat is pushed into the casing 5 by the pushing rod 11, the meat is advanced by the rotating screw unit 7, and after being subjected to a predetermined processing by both cutters 8 and 9, the end portion It is discharged from the outlet round hole 6a of the cover 6.

However, in the above conventional example, after grinding the required amount of meat, the following problems occurred when the meat was disassembled to clean and remove the meat adhering to the inner surface of the casing 5 and the outer surface of the screw unit 7. That is, although the end cover 6 itself can be easily removed by unscrewing it from the threaded portion 5b of the casing 5, the casings of the fixed cutter 9, rotary cutter 8, and screw unit 7 (these are removed at the same time) It is difficult to remove the shaft 7d from the screw unit 7 because the gripping portion of the shaft 7d is very small.
This was noticeable when mutton, bone-in meat, etc. got stuck between the blade and the chevron-shaped blade on the inner peripheral surface of the casing 5.
In order to eliminate this drawback, it seems like it would be a good idea to make the gripping part of the shaft part 7d larger, but in reality,
If the protruding length of the shaft portion 7d from the fixed cutter 9 is increased, there will be problems such as the shaft portion 7d protruding from the end cover 6 and hitting the hand. It cannot be made very thick due to the relationship with

OBJECT OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks.
An object of the present invention is to provide an electric meat grinder in which a screw unit can be easily taken out from a screw casing.

Structure of the Invention In order to achieve the above object, the electric meat grinder of the present invention includes a main body with a built-in electric motor, a screw casing detachably attached to the main body at one end, and other parts of the screw casing. A screw unit is rotatably disposed within the screw casing, and one end of the screw unit is connected to a transmission shaft for transmitting driving force from the electric motor. The screw unit is removably fitted into the screw unit, and the other end of the screw unit is a shaft portion having an engaging stepped portion, and one end is pivotally supported by the end cover, and the other end is connected to the shaft portion. The structure includes a pair of swing levers that are releasably engaged with the engagement stepped portions.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. In this figure, the same members as those in FIG. 1 are given the same reference numerals, and their explanations will be omitted.

In FIGS. 2 and 3, the shaft portion 7d of the screw unit 7 has an annular engaging step portion 7f. 6' is the threaded part 5 of the screw casing 5
The end cover is removably screwed onto the end cover b, and has a notch 6'a formed in a part of its outer surface. A pivot shaft 12 is installed in the middle of this notch 6'a, and one end of a pair of arc-shaped swing levers 13 is rotatably supported on this pivot shaft 12. The other end portion of the swing lever 13 can be releasably engaged with the engagement step portion 7f of the shaft portion 7d. Furthermore, engagement protrusions 13a are formed at the other end of the swing lever 13, and when the swing lever 13 is opened, these engagement protrusions 13a are provided in the notches 6'a of the end cover 6'. When inserted into the engagement recess 6'b, the swing lever 1
3 can be kept open.

In the above configuration, the meat grinding operation can be performed in the same manner as in FIG. 1 with both swing levers 13 held open as described above.

On the other hand, after finishing the required amount of meat grinding work, as shown in FIG. Loosen the end cover 6' and pull it in the direction of arrow A. Then, the fixed cutter 9, the rotary cutter 8 and the screw unit 7 are simultaneously pulled out in the direction of arrow A along with the end cover 6'. At this time, since the end cover 6' provides a large gripping part, a large tensile force can be applied, and even if there is a piece of mutton or bone between the chevron blades on the inner circumferential surface of the screw casing 5 and the outer circumferential surface of the screw unit 7, Even if the meat becomes clogged, the screw unit 7 can be pulled out from the casing 5 by strongly pulling the end cover 6'.

In the illustrated embodiment, the engagement step portion 7f is formed into an annular shape and the swing lever 13 is formed into an arc shape, but the shape is not limited to these shapes, and other members may be formed. Needless to say, various modifications are possible.

Effects of the Invention As explained above, in the electric meat grinder according to the present invention, the pair of swinging levers that releasably engage with the engagement step formed on the shaft of the screw unit are pivoted on the end cover. This has the advantage that the screw unit can be easily removed from the screw casing by pulling on the end cover which provides a large grip.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing a conventional electric meat grinder;
The figure is a sectional view showing an electric meat grinder according to an embodiment of the present invention, and FIG. 3 is a front view of the same meat grinder. 1...Main body, 2...Electric motor, 4...Transmission shaft, 5
... Screw casing, 6' ... End cover,
7... Screw unit, 7d... Shaft part, 7f
... Engagement stepped portion, 13 ... Swing lever.

Claims (1)

[Claims] 1 A main body with a built-in electric motor, a screw casing detachably attached to the main body at one end, and an end cover detachably screwed to the other end of the screw casing, A screw unit is rotatably disposed within the casing, one end of the screw unit is removably fitted to a transmission shaft that transmits the driving force from the electric motor, and the other end of the screw unit is engaged. a shaft portion having a stepped portion, and a pair of swinging levers that are pivotally supported by the end cover at one end and releasably engaged with the engagement stepped portion of the shaft portion at the other end. Electric meat grinder provided.