JPH11285367A - Takoyaki baking machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a machine for the preparation of Takoyaki (baked dough ball containing octopus meat) enabling the preparation of soft Takoyaki similar to the manually baked Takoyaki, dispensing with the work to turn-over the individual Takoyaki balls one by one with a pick and capable of producing a sufficiently large number of Takoyaki balls per unit installation area. SOLUTION: This Takoyaki preparation machine is provided with a 1st hot iron plate 1 having a number of nearly hemispherical cavities on its upper face, a 2nd hot iron plate 2 having nearly hemispherical cavities corresponding to the positions of the nearly hemispherical cavities of the 1st iron plate 1 and a table 3 for supporting the 1st and the 2nd hot iron plates 1 and 2. The rear end of the 2nd iron plate 2 is hinged to the rear end of the 1st iron plate 1, a turning shaft forming member to form a turning shaft 6 by uniting the 1st and the 2nd hot iron plates 1 and 2 is formed nearly at the center of the front and rear ends of the 1st and the 2nd iron plates 1 and 2 and the turning shaft 6 is rotatably supported on the supporting table 3 by a turning bearing 17. The united hot iron plates 1 and 2 can be turned and inverted around the turning shaft 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a takoyaki machine used for cooking takoyaki.

[0002]

2. Description of the Related Art Conventionally, takoyaki has been baked using a single iron plate provided with a large number of hemispherical concave portions on the upper surface. In this case, the ingredients are put into the hemispherical recesses, and while the degree of burning is checked, the pieces are turned over one by one using a pick or the like, and are gradually baked into a spherical shape. However, there is a problem that such manual hand-turning by hand requires a lot of trouble and lowers productivity.

[0003] Further, it is also possible to use a pair of iron plates each having a hemispherical concave portion, put ingredients in the hemispherical concave portions of each iron plate, bake the respective hemispheres, and combine them to finish a spherical takoyaki. Have been done. In this case, there is no need to turn it over by hand,
In order to prevent the unburned central part from flowing out when fitting the iron plates, it is necessary to burn to the center to some extent and then adjust the hemisphere. For this reason, the combined hemispheres are separated without being joined together, and it is very difficult to obtain a spherical takoyaki.

[0004] In order to bake a spherical takoyaki relatively easily using a plurality of iron plates, Japanese Patent Publication No.
A takoyaki machine disclosed in U.S. Pat.
This has a hemispherical recess 4 on the upper surface as shown in FIG.
It has a first iron plate 41, a second iron plate 42, a third iron plate 43 in which 0 is formed, and a flat iron plate 44 having a flat shape. A handle 45 is attached to each of the iron plates 41, 42, 43, 44.

In the above-described takoyaki machine, when the ingredients are put into the hemispherical recesses of the first iron plate 41 and the hemispheres are to be burned, the flat iron plate 44 is placed on the upper surface thereof and thinly grilled, while the ingredients are placed on the second iron plate 42. Add and bake the hemisphere. Next, the first iron plate 41 is inverted and overlaid on the second iron plate 42, and the hemisphere portion of the first iron plate 41 and the hemisphere portion of the second iron plate 42 are combined into a spherical shape and baked. By transferring the takoyaki to the iron plate 43, the spherical takoyaki is baked.
In this case, since the upper surface of the hemisphere to be baked by the first iron plate 41 is thinly baked by the flat iron plate 44 in advance, the unburned central portion does not flow out during the superposition.

[0006]

However, in the takoyaki machine described above, the hemispherical materials baked by the first iron plate 41 and the second iron plate 42 are combined to form a spherical takoyaki. There is a problem that it cannot be baked plumply like the original hand-baked takoyaki, which has been baked into a spherical shape, and only those with a bad texture can be made. Further, in the above-mentioned takoyaki machine, four iron plates 41, 42, 43, and 44 must be used in order to bake the number of takoyaki of one iron plate, so that in addition to one iron plate actually used for cooking, There is also a problem that three extra standby spaces are required, and the number of products per equipment space is extremely reduced to one-fourth of the conventional size. Further, it is necessary to perform an operation of thinly baking the upper surface of the hemisphere to be burned with the first iron plate 41 with the flat iron plate 44, and the operation is complicated. In addition, the degree of the thin baking requires a delicate adjustment such that the central portion does not flow out during the superposition and the inside is not completely burned, and the work is complicated. In addition, since the flat iron plate 44 is opened halfway, heat escapes, and it takes time to bake.

The present invention has been made in view of such circumstances, and does not require the operation of returning one by one with a pick or the like, enables a plump takoyaki like an original hand-baked, and furthermore, the production per equipment space. It is an object of the present invention to provide a takoyaki machine capable of ensuring a sufficient number.

[0008]

In order to achieve the above object, a takoyaki machine according to the present invention comprises a first heating iron plate having a plurality of substantially hemispherical recesses formed on an upper surface thereof, and a substantially hemisphere of the first heating iron plate. A second heating iron plate having a substantially hemispherical recess formed in a lower surface portion facing the cylindrical recess, and a support for supporting the first and second heating iron plates, and a rear end of the first heating iron plate The rear end of the second heating iron plate is hinged to the portion, and the rotating shaft formed on the rotating shaft in a state where the two heating iron plates are aligned with substantially the center of the opposing side edges of the first and second heating iron plates. A forming member is provided, and a bearing portion for rotatably supporting the rotating shaft is provided on the support base, so that the combined heated iron plates are rotated around the rotating shaft and inverted. The gist is that it is configured.

That is, the takoyaki machine of the present invention comprises a first heating iron plate having a large number of substantially hemispherical concave portions formed on the upper surface, and a substantially hemispherical portion formed on the lower surface of the first heating iron plate facing the substantially hemispherical concave portion. A second heating iron plate having a recess formed therein.
Then, the combined two heating iron plates are configured to rotate around the rotation axis and to be inverted. For this reason, the first heating iron plate is fitted to the second heating iron plate in which the ingredients are placed in the substantially hemispherical concave portions, and the first heating iron plate and the second heating iron plate are inverted while keeping the same state. Of the ingredients, the unburned central portion flows into the substantially hemispherical concave portion of the first heating iron plate to form a substantially hemispherical shape. Then, the substantially hemispherical portion remaining in the substantially hemispherical recess of the second heating iron plate and the substantially hemispherical portion formed in the substantially hemispherical recess of the first heating iron plate are integrally formed into a substantially spherical shape. Become. In this way, a substantially spherical takoyaki can be performed without performing the operation of returning one by one with a pick or the like. In addition, heating is performed from heat sources on both surfaces of the first heating iron plate and the second heating iron plate, and since the heat is not released in the middle, the heat is not released and the baking is performed quickly.
Furthermore, in the substantially spherical space formed by combining the substantially hemispherical concave portion of the first heating iron plate and the substantially hemispherical concave portion of the second heating iron plate,
Since the ingredients of a substantially hemispherical shape are formed in a substantially spherical shape, a takoyaki with a pleasing texture can be obtained as if it were baked by the original hand baking.

Further, in the takoyaki machine of the present invention, a rotating shaft forming member formed on a rotating shaft in a state where the two heating iron plates are combined is provided substantially at the center of the opposed side edges of the first and second heating iron plates. And a bearing portion for rotatably supporting the rotation shaft is provided on the support base. Thus, the combined heating iron plates are configured to rotate around the rotation axis and reverse. In this way, since the combined heated iron plates are rotated around the substantially central rotation axis and inverted, an extra standby space for the iron plate as in the related art is unnecessary, and the first occupying almost the entire installation space is not required. Heated iron plate 1
Takoyaki can be baked at once. For this reason, a sufficient number of products per installation space can be secured. Moreover, it is not necessary to perform a troublesome operation such as thinning the upper surface of a hemisphere with a flat iron plate as in the conventional example, and the spherical takoyaki can be easily grilled.

In the takoyaki machine according to the present invention, at least one of the two heating iron plates is provided with a rotation preventing portion, and the first engaging member locks the support member at the horizontal position of the both heating iron plates. In the case where a stop member and a second locking member for locking the detent portion at the reversal position of the heating iron plates are provided, the first locking member is locked to the detent portion. The horizontal position of the two heating iron plates is maintained, and when the ingredients are put into the substantially hemispherical concave portion of the first heating iron plate, the two heating iron plates are prevented from being inadvertently rotated, and the work is easy to perform.
High safety. In addition, when both the heating iron plates are inverted and baked, the careless rotation of the both heating iron plates is prevented, and the work is stable, safe and easy to perform, so that the spherical takoyaki can be baked neatly.

Further, in the takoyaki machine of the present invention, the center of gravity of both heating iron plates is provided closer to one side than the rotation axis, and the first locking member locks the rotation preventing portion at the horizontal position of both heating iron plates. The rotation of the center of gravity is restrained from rotating downward, and the rotation of the center of gravity is restrained from rotating downward by the second locking member locking the rotation preventing portion at the inverted position of the two heating iron plates. In this case, the stability of the heating iron plates in the horizontal position and the reversing position is ensured, and when the heating iron plates are inverted or returned, the heating iron plates are rotated by a quarter. After that, the iron plate is automatically rotated by the weight of the center of gravity of both heating iron plates, so that the work becomes easier.

Further, in the takoyaki machine of the present invention, the first
When the depth of the substantially hemispherical recess formed in the heating iron plate is formed deeper than the depth of the substantially hemispherical recess formed in the second heating iron plate, the depth of the substantially hemispherical recess formed in the first heating iron plate is increased. Slightly more ingredients are poured into the hemispherical recess, and this more ingredients can be used to bake a roughly spherical takoyaki. As you bake, you will be able to make takoyaki with a large volume and a satisfying taste.

[0014]

Next, embodiments of the present invention will be described in detail.

FIGS. 1 to 4 are views showing a takoyaki machine according to the present invention. This has a first heating iron plate 1 in which a large number of hemispherical recesses 4a are formed on the upper surface, and a first heating iron plate 1 in which a hemispherical recess 4b is formed in a portion of the lower surface facing the hemispherical recess 4a of the first heating iron plate 1. It comprises a two-heating iron plate 2 and a support base 3 for supporting the first and second heating iron plates 1 and 2.

The first and second heating iron plates 1 and 2 have a large number of hemispherical recesses 4a and 4b of the same size at the same positions, respectively, and the lower surface of the second heating iron plate 2 and the upper surface of the first heating iron plate are different. When they are combined, as shown in FIG. 5, the two hemispherical concave portions 4a and 4b are joined together to form a spherical space 22. The hemispherical concave portion 4a of the first heating iron plate 1 into which the ingredients are poured is formed to be deeper than the hemisphere, and the hemispherical concave portion 4b formed to the second heating iron plate 2 is formed to be shallower than the hemisphere. Is formed. Thereby, a slightly larger material can be poured into the hemispherical concave portion 4a of the first heating iron plate 1, and a substantially spherical takoyaki can be burned with the larger material.

The rear end of the first heating iron plate 1 and the second
Two hinge portions 5 are provided at the rear end of the heating iron plate 2 respectively.
a, 5b are formed, and the rear end of the first heating iron plate 1 and the rear end of the second heating iron plate 2 are hinged to be rotatable.
Bar-shaped detent members 8a, 8b are respectively provided on the hinge portions 5a, 5b so as to protrude in the lateral direction.

A semi-cylindrical rotating shaft formed on a cylindrical rotating shaft 6 in a state where the two heating iron plates 1 and 2 are put together substantially at the center of the front and rear edges of the first and second heating iron plates 1 and 2 respectively. Forming members 7a and 7b are provided. The rotating shaft forming members 7a and 7b are formed slightly closer to the right side than the left and right centers of the heating iron plates 1 and 2. Thereby, the center of gravity of both the heating iron plates 1 and 2 in a horizontal state (the state where the first heating iron plate 1 is positioned horizontally below as shown in FIGS. 1 to 4) is provided on the left side of the rotation shaft 6, It is heavier than the right side.

The first and second heating iron plates 1 and 2
The crank-shaped operation levers 9a and 9b are respectively mounted in the front rotation shaft forming members 7a and 7b. On the other hand, the rotating shaft forming member 7b on the rear side of the second heating iron plate 2 has notches 20 formed on the left and right of the rear end,
A tongue piece 10 is formed in a portion sandwiched between the cutouts 20.

In the figure, 11 and 12 are the first heating iron plates 1
And a heater attached to the second heating iron plate 2,
13 is a control box for controlling the heating temperature and heating time of the heaters 11 and 12, and 21 is a power cord.

The support base 3 is a base 1 having a rectangular shape in plan view.
4, a rear frame 15 is erected on the rear side, and a pillar 16 is erected at the center of the front side. Rotation bearings 17 each having a V-shape in a front view are formed at the center of the upper side of the rear side frame portion 15 and the upper end of the column portion 16, and the first and second heating iron plates 1 and 2 are formed on the V-shape. Are rotatably supported.

The first contact plates 18a and 18b and the second contact plate 19 are provided on the upper side of the rear frame 15 of the support base 3.
a, 19b are provided, and at the horizontal position of both the heating iron plates 1, 2, the left detent member 8a is connected to the left first contact plate 1
8a, while being in contact with the upper surface of the
b is in contact with the lower surface of the right first contact plate 18b. On the other hand, at the reversal position of the two heating iron plates 1 and 2 (the first heating iron plate 1 is on the upper side), the left rotation preventing member 8a contacts the upper surface of the right second contact plate 19b, The stopping member 8b is connected to the left second contact plate 19
a to come into contact with the lower surface.

The above takoyaki machine can be used as follows. That is, first, the operation lever 9b of the second heating iron plate 2 in the horizontal position is gripped and lifted upward,
The second heating iron plate 2 is rotated rearward to open both heating iron plates 1 and 2 (the state of FIG. 1). At this time, as shown in FIGS. 6 and 7, the tongue piece 10 formed on the rotary shaft forming member 7b on the rear side of the second heating iron plate 2 climbs over the upper side of the rear frame 15 of the support base 3, The notch 20 is in contact with the upper end of the upper side of the rear frame 15 so that the rotation of the second heating iron plate 2 is stopped.

Next, the hemispherical recess 4a of the first heating iron plate 1
Pour the ingredients into. At this time, the center of gravity of the two heating iron plates 1 and 2 is provided on the left side of the rotary shaft 6 in the horizontal position, and the left rotation preventing member 8a abuts on the upper surface of the left first contact plate 18a. The detent member 8a is locked, the right detent member 8b abuts on the lower surface of the right first contact plate 18b, and the detent member 8b is latched. It is stopped.
As described above, since the left side (center of gravity) of both the heating iron plates 1 and 2 is restrained from rotating downward in the horizontal position, the heating iron plates 1 and 2 are stabilized in the horizontal position, Ingredients can be easily poured and safety is high.

Next, the second heating iron plate 2 is rotated forward to bring the two heating iron plates 1 and 2 together. (See FIGS. 3 and 4). By steaming for a while in this state,
In the spherical space 22 formed by the hemispherical concave portions 4a and 4b of both the heating iron plates 1 and 2, the above-mentioned ingredients are steamed and the surface portion in contact with the inner surface of the hemispherical concave portion 4a is burnt and hardened. Then, both operating levers 9a and 9b are gripped and rotated rightward, and the combined heated iron plates 1 and 2 are rotated rightward about the rotating shaft 6 to be inverted as shown in FIGS. Let it. At this time, since the center of gravity of the two heating iron plates 1 and 2 is provided on the left side of the rotating shaft 6, when the two heating iron plates 1 and 2 are rotated by a quarter, the two heating iron plates 1 and 2 It turns automatically with the left weight.

In the reversing position, the two heating iron plates 1 and 2
Is provided on the left side, and the left rotation preventing member 8a abuts on the upper surface of the right second abutting member 19b to lock the above rotation preventing member 8a, and the left second abutting member 19a The right rotation-stop member 8b abuts on the lower surface of the first iron plate and the above-mentioned rotation-stop member 8b is locked, so that the two heating iron plates 1 and 2 are prevented from rotating. As described above, since the left side (center of gravity side) of both the heating iron plates 1 and 2 is restrained from rotating downward even in the inversion position, the heating iron plates 1 can be kept roasted even in the inversion position. , 2 are stable and do not rotate carelessly, and the safety is high. Then, in this state, the unhardened central portion of the ingredients in the hemispherical recess 4a of the first heating iron plate 1
The mixture flows into the part b into a substantially hemispherical shape, is steamed as it is, and a substantially spherical takoyaki is baked.

After that, the operating levers 9a and 9b are rotated to the left to rotate the heating iron plates 1 and 2 to the left, return to the horizontal position, and lift the operating lever 9b of the second heating iron plate 2 upward. Then, the second heating iron plate 2 is rotated backward to open both heating iron plates 1 and 2, and the baked takoyaki is taken out from the hemispherical concave portion 4a.

According to the takoyaki machine, spherical takoyaki can be easily performed without turning over one by one with a pick or the like. In addition, we bake quickly because we bake by heating from both sides.
Furthermore, in the spherical space 22, since the ingredients slightly larger than the hemisphere are formed into a sphere while being steamed, they are baked plumply as if baked by hand, and have a large volume and are responsive. You can do takoyaki. In addition, since the two heated iron plates 1 and 2 in the combined state are turned right and left around the rotation shaft 6, there is no need for an extra iron plate waiting space as in the conventional case, and a sufficient number of products per installation space can be secured. it can. Furthermore, when the ingredients are put into the first heating iron plate 1 and when the two heating iron plates 1 and 2 are inverted and baked, the horizontal position and the inversion position of the two heating iron plates 1 and 2 are stably maintained, so that the work is performed. Easy to do and safe. In addition, when the heating iron plates 1 and 2 are turned over, if the heating iron plates 1 and 2 are turned by a quarter, then the weights on the left side of the heating iron plates 1 and 2 are automatically turned and turned over. Work is easy.

In the above embodiment, the rotating shaft forming members 7a and 7b are formed slightly to the right of the left and right centers of the heating iron plates 1 and 2 so that the heating iron plates 1 and 7 in the horizontal state are formed. Although the center of gravity is provided closer to the left side than the rotary shaft 6 of the second, the present invention is not limited to this, and the center of gravity may be deviated by providing a weight on either of the heating iron plates 1 and 2. Further, in the above-described embodiment, the two heating iron plates 1 and 2 are rotated rightward to be inverted, but the present invention is not limited to this, and they may be rotated leftward to be inverted. Similarly, whether the center of gravity is shifted to the right or to the left can be appropriately set.

In the above embodiment, the rotating shaft forming members 7 are provided on the front and rear edges of the first and second heating iron plates 1 and 2 respectively.
a and 7b are provided, and both the heating iron plates 1 and 2 are rotated left and right around the rotation shaft 6, but the present invention is not limited to this, and the rotation shaft forming members 7a and 7b are connected to the first and second shafts. The heating iron plates 1 and 2 may be provided on the left and right side edges, respectively, and the heating iron plates 1 and 2 may be rotated back and forth. further,
In the above embodiment, both heating iron plates 1 and 2 are
Although one control box 13 for controlling the heating temperature and the heating time of No. 2 is provided, the present invention is not limited to this.
A control box 1 for controlling the heating temperature and heating time of each of the heating iron plates 1 and 2 on the heating iron plate 1 and the second heating iron plate 2
3 may be provided. In this manner, the heating temperature and the heating time of the first heating iron plate 1 and the second heating iron plate 2 can be independently controlled.

[0031]

As described above, according to the takoyaki machine of the present invention, the first heating iron plate is combined with the second heating iron plate in which the ingredients are placed in the substantially hemispherical concave portions, and the first heating iron plate and the second heating iron plate are combined. By inverting the iron plate while keeping the same state, the unburned center portion of the hemispherical components flows into the substantially hemispherical concave portion of the first heating iron plate to form a substantially hemispherical shape. Then, the substantially hemispherical portion remaining in the substantially hemispherical recess of the second heating iron plate and the substantially hemispherical portion formed in the substantially hemispherical recess of the first heating iron plate are integrally formed into a substantially spherical shape. Become. In this way, a substantially spherical takoyaki can be performed without performing the operation of returning one by one with a pick or the like. In addition, heating is performed from heat sources on both surfaces of the first heating iron plate and the second heating iron plate, and since the heat is not released in the middle, the heat is not released and the baking is performed quickly. Furthermore, in the substantially spherical space formed by the combination of the substantially hemispherical concave portion of the first heating iron plate and the substantially hemispherical concave portion of the second heating iron plate, the substantially hemispherical components are formed in a substantially spherical shape. Takoyaki with a plump texture can be obtained as if it had been baked by hand-baking.

In the takoyaki machine of the present invention, the two heated iron plates are rotated about the substantially central rotation axis and inverted, so that an extra standby space for the iron plates as in the prior art is not required, and the takoyaki machine is installed. Takoyaki for one surface of the first heating iron plate occupying substantially the entire surface of the space can be baked at a stretch. For this reason, a sufficient number of products per installation space can be secured. Moreover, it is not necessary to perform a troublesome operation such as thinning the upper surface of a hemisphere with a flat iron plate as in the conventional example, and the spherical takoyaki can be easily grilled.

In the takoyaki machine according to the present invention, at least one of the two heating iron plates is provided with a rotation preventing portion, and the first engaging member locks the support at the horizontal position of the both heating iron plates. In the case where a stop member and a second locking member for locking the detent portion at the reversal position of the heating iron plates are provided, the first locking member is locked to the detent portion. The horizontal position of the two heating iron plates is maintained, and when the ingredients are put into the substantially hemispherical concave portion of the first heating iron plate, the two heating iron plates are prevented from being inadvertently rotated, and the work is easy to perform.
High safety. In addition, when both the heating iron plates are inverted and baked, the careless rotation of the both heating iron plates is prevented, and the work is stable, safe and easy to perform, so that the spherical takoyaki can be baked neatly.

Further, in the takoyaki machine of the present invention, the center of gravity of both heating iron plates is provided closer to one side from the rotation shaft, and the first locking member locks the rotation preventing portion at the horizontal position of both heating iron plates. The rotation of the center of gravity is restrained from rotating downward, and the rotation of the center of gravity is restrained from rotating downward by the second locking member locking the rotation preventing portion at the inverted position of the two heating iron plates. In this case, the stability of the heating iron plates in the horizontal position and the reversing position is ensured, and when the heating iron plates are inverted or returned, the heating iron plates are rotated by a quarter. After that, the iron plate is automatically rotated by the weight of the center of gravity of both heating iron plates, so that the work becomes easier.

In the takoyaki machine of the present invention, the first
When the depth of the substantially hemispherical recess formed in the heating iron plate is formed deeper than the depth of the substantially hemispherical recess formed in the second heating iron plate, the depth of the substantially hemispherical recess formed in the first heating iron plate is increased. Slightly more ingredients are poured into the hemispherical recess, and this more ingredients can be used to bake a roughly spherical takoyaki. As you bake, you will be able to make takoyaki with a large volume and a satisfying taste.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a takoyaki machine of the present invention.

FIG. 2 is an exploded perspective view showing the takoyaki machine.

FIG. 3 is a plan view showing the takoyaki machine.

FIG. 4 is a front view showing the takoyaki machine.

FIG. 5 is a sectional view showing first and second heating iron plates.

FIG. 6 is a side view showing a state where the first and second heating iron plates are closed.

FIGS. 7A and 7B are explanatory views of a main part showing a state in which a second heating iron plate is rotated. FIG. 7A is a closed state, and FIG. 7B is an open state.

FIG. 8 is a perspective view showing a state where both heating iron plates are inverted.

FIG. 9 is a plan view showing a state where both the heating iron plates are inverted.

FIG. 10 is a perspective view showing a conventional takoyaki machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st heating iron plate 2 2nd heating iron plate 3 Bearing 6 Rotation shaft 7a, 7b Rotation shaft formation member 17 Rotation bearing

Claims (4)

[Claims] 1. A first heating iron plate having a plurality of substantially hemispherical recesses formed on an upper surface, and a second heating iron plate having a substantially hemispherical recess formed on a lower surface of the first heating iron plate facing the substantially hemispherical recesses. A heating iron plate; and a support for supporting the first and second heating iron plates. A rear end of the second heating iron plate is hinged to a rear end of the first heating iron plate. A rotating shaft forming member formed on the rotating shaft in a state where the two heating iron plates are combined is provided substantially at the center of each of the opposed side edges of the second heating iron plate, and the rotation shaft is rotatable on the support base. A takoyaki machine characterized in that a bearing portion for supporting is provided so that the combined heated iron plates are rotated around the rotation axis and inverted. 2. A first locking member provided with a detent portion on at least one of the heating iron plates, and a first locking member for locking the detent portion at a horizontal position of the heating iron plates on the support base. 2. The takoyaki machine according to claim 1, further comprising a second locking member that locks the rotation preventing portion at a reversal position of both the heating iron plates. 3. The center of gravity of both heating iron plates is provided closer to one side from the rotation axis, and the first locking member locks the rotation preventing portion at the horizontal position of both heating iron plates, whereby the center of gravity rotates downward. 3. The structure according to claim 2, wherein the second locking member locks the rotation preventing portion at the reversing position of the two heating iron plates, thereby preventing the center of gravity from rotating downward. Takoyaki machine. 4. The method according to claim 1, wherein the depth of the substantially hemispherical recess formed in the first heating iron plate is greater than the depth of the substantially hemispherical recess formed in the second heating iron plate. The takoyaki machine according to one of the preceding claims.