JPH10146171A - Production of reversed yolk egg and apparatus therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a boiled egg in which the albumen is located at the center and surrounded by the yolk. SOLUTION: This apparatus for producing a reversed yolk egg is obtained by supporting a lifting and lowering unit 33 so as to vertically move on an egg 1 held by a machine casing, freely rotatably supporting a screw shaft 29 having an external thread cut on the outer peripheral surface vertically to the machine casing, supporting a nut 35 screwing onto the screw shaft 29 on the lifting and lowering unit 33 so as to rotate the screw shaft 29 when vertically moving the lifting and lowering unit 33, freely rotatably supporting a drill 26 for boring a hole in the shell of the egg on the machine casing, installing a transmitting means 34 for transmitting a torque of the screw shaft 29 to the drill 26, arranging a wiry material 50 longer than the diameter of the egg freely rotatably downward at the lower part of the lifting and lowering unit 33, forming the drill 26 in a hollow state, enabling the wiry material 50 to pass through the drill 26, installing a cylinder 37 capable of receiving an agent (a protein coagulant) with the vertical axial line, extendedly arranging an injection pipe 47 for passing through the central hole of the drill 26 and fitting and installing piston 39 for pushing out the agent downward in the interior of the cylinder 37.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for making boiled eggs in which the yolk and the white are reversed (returned egg) and an apparatus therefor.

[0002]

2. Description of the Related Art An ordinary boiled egg has an egg yolk in the middle and an albumen around it. On the other hand, as shown in FIG. 6, the boiled egg in which the egg white 3 is located in the center of the shell 2 and the yolk 4 surrounds the egg white 3 is called a turned egg.

[0003] A cookbook of the Edo era introduces such a yolk-turned egg. The method of making it is to make a hole in the shell of the egg with a needle and boil it after soaking it in bran miso for 3 days. Things. However, even if you try this way, you can't, of course, turn yolk back.

[0004]

There is no doubt that yolk-turned eggs are rare for everyone, and if they can be made easily, they will open up the possibility of being used as a new ingredient, such as garnishing vegetable salads. It is an object of the present invention to provide a method and an apparatus for easily making egg yolk.

[0005]

According to the method of the present invention, a small hole is made in a shell of a chicken egg by a drill or the like. Insert an elongated object (wire, bamboo skewer, etc.) through this hole to break the yolk membrane surrounding the yolk and loosen the yolk sufficiently. Further, a protein coagulant (eg, bittern, calcium sulfate, etc.) is injected through a hole using a dropper or a syringe. The injection volume is approximately equal to the volume of the air chamber of the egg, 0.5
About 1 milliliter.

The eggs thus processed are boiled while rotating in hot water at a temperature (62 to 63 ° C.) lower than the coagulation temperature of the yolk. When the egg white has solidified, raise the hot water temperature and boil it further to solidify the yolk.

In general, egg white begins to harden at about 62 ° C., becomes jelly at 70 ° C., and completely solidifies at 80 ° C. On the other hand, yolks set around 65 ° C. When bittern is mixed into an egg having such properties, the egg white begins to heat denature from about 40 ° C. and coagulates even at a temperature of about 62 to 63 ° C.

Therefore, if the eggs are boiled while maintaining the hot water temperature of about 62 to 63 ° C., the yolks do not solidify but only the whites solidify. At this time, by rotating the egg, a lump formed by coagulation of the white body grows large with time, and furthermore, the yolk is pushed around and is located at the center of the egg.
When the whiteness solidifies in this way, the temperature of the hot water is raised, and then the eggs are boiled while rotating, and the whiteness solidifies as if to wrap the whiteness.

The present invention also provides an apparatus used for producing such a yolk-returned egg. This device supports an elevating body on the machine frame so as to move up and down on eggs held by the machine frame. Further, a helical shaft having an external thread cut on the outer peripheral surface is supported vertically and rotatably on the machine frame. An engaging member such as a nut that is screwed with the spiral shaft is supported by the elevator so that the spiral shaft rotates when the elevator is moved up and down. A drill for drilling a hole in the egg shell is rotatably supported on the machine frame, and transmission means for transmitting the rotational force of the helical shaft to the drill is provided.

In this device, when the lifting body is pushed down, the helical axis rotates, and accordingly, the drill turns to pierce the egg shell.

Further, in this manufacturing apparatus, a pilus longer than the diameter of the egg is downwardly and rotatably attached to the lower part of the elevating body, and a drill is formed in a hollow so that the pilus can pass therethrough. In addition, the center hole of the drill and the cross-sectional shape of the pilus can both have a non-circular cross-section, so that the pilus can rotate together with the drill.

Thus, when the lifting body is pushed down, not only does the drill make a hole in the shell, but also the striatum enters the egg while rotating through the center hole of the drill. Thereby, the yolk membrane is broken and the contents can be loosened.

[0013] Further, a cylinder for receiving a chemical solution (protein coagulant) is provided on the elevating body with a vertical axis, and an injection pipe passing through the center hole of the drill is provided below the cylinder to extend the chemical solution inside the cylinder. May be fitted. In this way, when the elevating body descends, the drug solution is injected into the egg.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG.
The machine frame is configured by connecting with the pillars 21 of the book. Lower plate 20
c, a spring 22 is attached to the middle plate 20b, and a rubber pad 23 having a concave lower surface is attached to the middle plate 20b so that the egg 1 can be sandwiched between them.

An arm 25 is supported on the two columns 21 so as to be able to move up and down (see also FIG. 4), and a drill 26 for making a hole in the egg 1 is rotatably attached thereto. In order to press the tip of the drill 26 against the egg 1, as shown in FIG.
5 is urged downward by a spring 27.

As shown in FIG. 1, upper and middle plates 20a,
The helical shaft 29 is rotatably supported between 20b. The spiral shaft 29 is formed with a large pitch male screw. Transmission means 34 for transmitting the rotational force of the helical shaft to the drill includes a large pulley 30 fixed to the lower portion of the helical shaft 29, a small pulley 31 fixed to the drill 26, and a transmission belt 32 suspended between these pulleys. Consists of On the other hand, as shown in the horizontal cross-sectional view on the right side of FIG. 1, an elevating body 33 is slidably supported by the two columns 21, and a nut 35 screwed to the helical shaft 29 is fixed thereto.

With such a configuration, when the nut 35 is pushed down together with the elevating body 33, the helical shaft 29 rotates, and the drill 26 rotates through the transmission belt 32, so that a hole is formed in the chicken egg 1.

Next, the lifting body will be described. Lifting body 33
Is a container 36 for storing the drug solution 5 (protein coagulant) in the outer cylindrical portion, and a cylinder 3 provided at the center thereof.
7 is fitted so that the piston 39 can slide. A spring 40 is provided in the cylinder, so that the piston 3
Push up 9. A hole 31 is formed around the cylinder 37 so that the chemical solution 5 in the container 36 flows into the cylinder 37 through the hole 41 when the piston 39 is raised.

As shown in FIG. 3, a valve housing 42 is provided at the tip (lower end) of the cylinder 37, and a ball valve 43 is provided therein.
And a spring 46 for pushing it up and closing the hole 45 on the lower surface of the cylinder. An injection pipe 47 is connected to the valve box 42 downward.

Further, a cylindrical body 49 is rotatably provided in the valve housing 42.
And the elastic ciliary body 50 is implanted on the lower surface of the cylindrical body.
This elastic pilus is obtained by bending a single piano wire in the middle, with the folded side down, and both ends of the wire fixed to the cylindrical body 49 with the injection pipe 47 interposed therebetween.

An operation lever 51 is vertically slidably mounted on the outer surface of the elevating body 33 (FIG. 1).
Is pushed up by the spring 52. A ring is formed at the upper end of a piston rod 53 extending upward from the piston 39, and a striated body (piano wire) 55 is passed through the ring. One end is fixed to the upper end of the operation lever 51, and the other end is fixed to the edge of the drug solution container 36. I do.

The drill 26 has a hollow shaft portion 26a having a blade at the tip and a guide tube 2 extending therefrom.
6b through the center hole of the drill
0 and the injection tube 47 can pass through. Then, when the drill 26 rotates, the hole 28 of the guide tube 26b of the drill is not a perfect circle, so that the ciliary body (bent piano wire) 50 passing therethrough rotates together. (See the horizontal section on the right side of FIG. 3).

When making the egg yolk, first, the lifting body 3
The chicken egg 1 is pushed between the spring 22 and the rubber pad 23 in a state where the chicken egg 3 is pushed up. Next, the operation lever 5
When the first handle 51a is pulled down, the elevating body 33 descends along the column 21 as shown by a chain line in FIG. Lifting body 3
Since the nut 35 screwed to the spiral shaft 29 is fixed to 3, the spiral shaft 29 rotates when the elevating body descends. When the helical shaft rotates, the large pulley 30, the transmission belt 32,
The drill 26 turns through the small pulley 31. Since the drill 26 is pressed against the egg by the spring 27,
A hole is made in the shell of egg 1 while rotating, and the tip enters the egg. Through the center hole of the drill, the hair 50 enters the egg 1 while rotating.

The fibrous body 50 is longer than the diameter of the egg, and when the operating lever is further depressed, the fimbrial body 50 bends into the egg as shown in FIG. This ciliary body 50 not only goes into the egg, but also rotates with the drill 26 as described above,
The bent part moves around in the egg in a complicated manner, breaking the yolk membrane surrounding the yolk and stirring the egg.

Finally, when the tip of the injection tube 47 passes through the drill 26 and enters the egg 1, the cylinder 49 strikes the guide tube 26b. In this state, when the operating lever is further pressed down, the spring 52 is pressed and contracted, and only the operating lever 51 moves downward while the elevating body 33 remains stationary. Then, the piano wire 55 hooked on the upper end of the operation lever is pulled, the piston rod 53 is pushed down, the spring 40 is contracted, and the piston 39 is moved to the cylinder 3
Go down in 7. Thus, the drug solution 5 (protein coagulant) in the cylinder 37 is pushed down by the ball valve 43 and discharged, and the discharged liquid is injected into the egg 1 from the tip through the injection pipe 47. Thus, the injection of the chemical is performed until the stopper 57 hits the bottom plate 59 of the elevating body 33. The injection amount of the chemical solution can be adjusted by changing the position of the stopper 57 along the operation lever 51.

When the injection of the chemical is completed, the operation lever 51
Is raised and lowered, and the inside of the egg is again stirred with the pilus body 50. Finally, the lifting body 33 is fully raised, and the egg 1 is taken out by compressing the spring 22. When the lifting body is raised, the position of the piston 39 is
Since the height is higher, the drug solution 5 flows into the cylinder 37 from the hole 41, and the preparation for processing the next egg is completed.

In the egg thus treated, the yolk wrapping the yolk is broken, and the yolk comes out of the yolk membrane,
The contents of the egg are mixed with the bittern. Put together some eggs like this and boil them in a pan. While boiled, roll the eggs in the pan with chopsticks.

FIG. 5 shows the temperature change of the hot water when it is boiled. The temperature of the hot water is raised to 62 ° C. in about 10 minutes.
Maintain that temperature. The heat denaturation of the egg white starts when the temperature of the hot water exceeds 40 ° C., and the white body starts to solidify at 62 ° C., and the mass gradually grows larger. The yolk that has already been loosened is pushed around and the white is now in the middle of the shell. Thus, when the temperature of 62 ° C. is maintained for about 5 minutes, the white body is substantially solidified. After this, the temperature of the hot water is reduced to 80
Raise the temperature to about ℃ to solidify the yolk. As shown in FIG. 6, the egg yolk thus obtained has egg white 3 solidified in the center of shell 2 and yolk 4 surrounds it.

[0029]

As described above, the present invention has the following effects. In the method for producing a yolk-turned egg according to claim 1, a small hole is formed in an egg shell, and a protein coagulant is injected from the small hole to lower the coagulation temperature of egg white from the coagulation temperature of egg yolk. And break the yolk membrane to allow the yolk to flow freely. In this way, boil the egg while rolling it while keeping the hot water temperature not exceeding the coagulation temperature of the yolk, thereby coagulating the egg white in a lump in the center,
Next, the temperature of the hot water was raised to coagulate the yolk around the egg white mass. In this way, a simple procedure makes it possible to obtain an unusual boiled egg in which yolk and white are switched.

According to a second aspect of the present invention, there is provided an apparatus for manufacturing a yolk-turned egg, wherein the lifting body moves up and down on the egg held by the machine frame, a spiral shaft rotatably supported by the machine frame, and fixed to the lifting body. Further, an engaging member screwed with the spiral shaft, a drill rotatably supported by the machine frame, and transmission means for transmitting the rotating force of the spiral shaft to the drill, only by lowering the elevating body, A stoma can be reliably formed in the egg shell.

[0031] In the manufacturing apparatus according to the third aspect of the present invention,
Attach the pili body downward, form the drill in a hollow so that the pili body can pass therethrough, and make the center hole of the drill and the cross-sectional shape of the pili body both circular cross sections, When it turns, the ciliary body is also configured to rotate together, and by simply pushing down the elevating body, the ciliary body bends into the egg and penetrates while rotating, destroying the yolk membrane Eggs can be loosened.

According to a fourth aspect of the present invention, a cylinder for receiving a protein coagulant is provided on an elevating body with an axis, and a lower portion of the cylinder is provided with a cylinder.
An injection tube passing through the center hole of the drill is extended, and a piston is fitted inside the cylinder. The protein coagulant can be injected into the egg simply by lowering the elevating body.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an apparatus for manufacturing a yolk turned egg.

FIG. 2 is a cross-sectional view of a main part of the manufacturing apparatus in a state where a lifting body is lowered.

FIG. 3 is an enlarged sectional view around a valve housing.

FIG. 4 is an elevation view around a drill as viewed from a direction VI in FIG. 1;

FIG. 5 shows the temperature of hot water when the eggs are boiled.

FIG. 6 is a sectional view of the egg yolk.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chicken egg 26 Drill 29 Spiral shaft 34 Transmission means 33 Elevating body 35 Engagement member (nut) 37 Cylinder 39 Piston 47 Injection pipe 50 Pili

Claims (4)

[Claims] 1. A small hole is made in a shell of a hen's egg, and a thin and long object is inserted through the hole to break the yolk membrane and to inject a protein coagulant. A method for producing a yolk-turned egg, comprising boiling while rotating and, when the egg white has solidified, raising the hot water temperature to solidify the yolk. 2. An elevating body (33) that moves up and down on an egg (1) held by a machine frame, and is vertically and rotatably supported by the machine frame and has an external thread cut on its outer peripheral surface. Helical shaft (29)
An engaging member (35) fixed to the elevating body so that the spiral shaft rotates when the elevating body is moved up and down, and a hole in the shell of the egg. And a transmission means (34) for transmitting the rotational force of the helical shaft to the drill (26). 3. A pilus body (50) longer than the diameter of the egg is downwardly and rotatably attached to a lower portion of the elevating body, and the drill is formed in a hollow so that the pilus body is formed therein. And the cross-sectional shape of each of the center hole of the drill and the ciliary body is made to have a non-circular cross-section so that when the drill rotates, the ciliary body also rotates. An apparatus for producing a yolk-turned egg according to the above. 4. An elevating body is provided with a cylinder (37) for receiving a protein coagulation liquid with its axis vertical, and an injection pipe (47) extending through the center hole of the drill extends below the cylinder. 4. The apparatus for producing a yolk-turned egg according to claim 2, wherein a piston (39) for pushing out the protein coagulation liquid inside the cylinder is fitted.