JPH071065Y2 - Steam kettle - Google Patents

Description

[Detailed description of the device]

[Industrial applications]

The present invention relates to a steam cooker capable of boiling food by using high temperature steam.

[Prior art]

BACKGROUND ART Conventionally, as a commercial cooking pot, a steam pot is known in which heating steam jackets are attached to the outer wall surfaces of the middle and bottom of the pot. However, since the conventional steam pot has a large volume, there is a problem that the heat efficiency is poor and the cooking time is long. On the other hand, there is also known a configuration in which a cylindrical heating steam jacket is provided in the center of the pot integrally with the heating steam jacket.

[Problems to be solved by the device]

However, in the conventional configuration, since the auxiliary steam jacket is provided in the center, the stirring blade cannot be provided, and the food or the like cannot be stirred, so that it cannot be boiled uniformly and cannot be upsized. Further, Japanese Patent Laid-Open No. 62-236459 discloses a configuration in which a heating column is provided around the rotating shaft of the stirring blade, and heating is performed in the central portion. It is composed of an integrated structure that communicates with. The present invention has been made in view of the above circumstances, and its main problem is to use a second heating steam jacket serving as a heating column in which a steam jacket for heating the first heating steam jacket and an independent jacket is provided. To provide.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention takes a means of projecting the stirring rod toward the inside from the bottom of the kettle and providing a heating steam jacket around the stirring rod. That is, the steam kettle according to the present invention comprises a kettle body, a first heating jacket attached so as to surround the outer wall surfaces of the middle and bottom of the kettle body, and the bottom of the kettle body to the inside of the kettle body. A cylindrical second heating steam jacket that extends to the inside and forms an annular space in cross section, and the tip end of the second heating steam jacket is rotatably inserted into the second heating steam jacket. In a steam pot comprising a rotating shaft for stirring protruding from the rotating shaft for stirring, and a stirring blade provided on the rotating shaft for stirring, the second heating steam jacket bearing the rotating shaft for stirring inside has a first heating steam jacket. It is characterized in that it comprises an independent jacket that penetrates the bottom of the heating steam jacket, and that an inlet and an outlet for the heating steam are provided at the lower end of the second heating steam jacket.

[Action]

In the steam cooker according to the present invention, the stirring vanes rotate during cooking, and the heating steam is sent to the first heating steam jacket on the outer wall surface of the cooker and the second heating steam jacket at the center. ing. Therefore, it becomes possible to improve the thermal efficiency and shorten the cooking time.

【Example】

Hereinafter, the present invention will be described with reference to the illustrated embodiments. FIG. 1 is a cross-sectional view of a part of a steam kettle according to the present invention, in which 1 is a kettle body having a hemispherical bottom, and 2 is a middle wall of the kettle body 1 and an outer wall surface of the bottom. This is the first heating steam jacket attached as described above. The first heating jacket 2 is divided into an annular jacket 2a that heats only the middle part of the kettle and a hemispherical jacket 2b that heats only the bottom of the kettle through a partition 3 as shown in the example shown in FIG. The steam heated to the inlet 2c, 2d
It may be fed via a single jacket or a single jacket. A second heating steam jacket 4 extends toward the center of the kettle body 1 so as to penetrate a slightly oblique wall surface of the bottom of the kettle body 1. The second heating steam jacket 4 is composed of a double cylindrical body having an annular space 4a for passing the heating steam. The lower end of the second heating steam jacket 4 is led out from the bottom of the kettle body 1 and is connected to the heating steam introducing pipe 5 and the heating steam leading pipe 6. The tip 5a of the heating steam introducing pipe 5 is inserted deeply inside the second heating steam jacket 4 as shown in the figure, and after the heating steam has sufficiently spread to the tip of the second heating steam jacket 4. It is adapted to be discharged from the outlet pipe 6. An agitating rotary shaft 7 is rotatably inserted into and supported by a shaft core space 4b surrounded by an inner cylindrical portion 4'of the second heating steam jacket 4. That is, the lower end of the stirring rotary shaft 7 is rotatably supported on the upper surface of the substrate 8 disposed below the bottom of the pot main body 1, and the upper end thereof projects from the upper end of the second heating steam jacket 4 to form the bearing portion. It is rotatably fitted and inserted in 9. This bearing portion 9 is a fixed plate fixed to the inner wall of the upper portion of the hook main body 1.
It is fixed by means of 10 so as to prevent rotational runout of the stirring rotary shaft 7. Referring to FIG. 2, the bearing seal portion of the agitating rotary shaft 7 will be described as an example in the present embodiment. Below the agitating rotary shaft 7 are two dry parts, one below the inner cylinder 4'and one above the inner cylinder 4 '. A bearing 31 and an O-ring 32 are used to circumferentially bear the inner cylindrical portion 4 ', and an oil seal 33 is provided on the outer side. Further, a spacer 34 made of a lubricant such as Teflon is in contact with the upper bearing portion and is fitted on the stirring rotary shaft 7 outside. On the spacer 34, a fixed member 11 fixed to the stirring rotary shaft 7 and serving as a base portion of an arm member for a stirring blade is rotatably contacted. Further, the upper end of the stirring rotary shaft 7 is fitted in the cup-shaped bearing portion 9 through a lubricant 35 such as Teflon in the circumferential direction. In this way, the agitating rotary shaft 7 is supported by the inner cylindrical portion 4'of the heating steam jacket 4 and is sealed. Next, three arm members 12a, 12b, 12c are radially extended and fixed to the projecting portion of the stirring rotary shaft 7 via a fixing member 11 so as to be spaced from each other at equal intervals. An intermediate portion of the arm member 12a, which is located forward of the base end portion, hangs substantially parallel to the stirring rotary shaft 7, and plate-like blades 13 are fixed to the intermediate portion in parallel with the tip end thereof for the second heating. The steam jacket 4 is rotated while slidingly contacting the outer peripheral surface of the steam jacket 4. Further, an arcuate blade 15 is attached to the tip of the arm 12a as a mounting member 1.
It is attached via 4a, and the tip thereof rotates while slidingly contacting the inner surface of the bottom of the pot near the second heating steam jacket 4. The arm member 12b hangs obliquely with respect to the agitating rotary shaft 7 from the base end portion, and an arcuate blade 16 is attached to the tip end thereof via a mounting member 14b, and the tip end thereof is a pot middle belly member. It is designed to rotate while sliding on the inner wall surface of the. The arm member 12c also hangs obliquely with respect to the agitating rotary shaft 7 from the base end portion, an arcuate blade 17 is attached to the tip end thereof via a mounting member 14c, and is divided in the middle of the arm member 12c. The blades 18 are attached via the branch arms 12d, and are rotated while slidingly contacting the inner wall surfaces of the middle portion of the hook. Each of these blades 13 to 18 is made of a heat-resistant plastic material such as Teflon, and is attachable to and detachable from the attachment portion attached to each arm member. The blades 13 to 18 are preferably attached to each arm member with a predetermined twist angle. Apart from these blades 13 to 18, a blade 19 made of, for example, Teflon is detachably attached to the fixing member 10 so that the outer peripheral surface of the cylindrical portion 20 above the upper end of the second heating steam jacket 4 is in contact with the blade. It is worn. With these blades 13 to 19, substantially all of the contact portion between the heating surface inside the pot and the food to be cooked can be wiped. The stirring rotary shaft 7 is partly wound around a lower end portion extending from the bottom of the shuttle main body 1 and is rotationally driven by an endless belt 22 running by a motor 21. Next, the method of using this steam pot will be described. First, the food to be cooked is placed in the pot main body 1, and in parallel with this, heating steam is supplied to the first heating steam jacket 2 and the second heating steam jacket. High-temperature heating steam having an appropriate temperature is circulated in each of the four. At the same time, the stirring rotary shaft 7 is rotated at an appropriate speed to rotate the blades 13 to 19. Here, since the stirring rotating shaft 7 is sealed, steam does not enter the bearing portion, and stable stirring can be performed. Further, since the pot can heat the food to be cooked in the state where the contact area is enlarged by the first and second heating steam jackets, the thermal efficiency can be improved.

[Effect of device]

As described above, according to the present invention, the stirring rotary shaft is protruded from the bottom of the cooking stove and the stirring blades are attached to the stirring rotary shaft to promote heat conduction to the entire cooking target. Since a heating steam jacket is provided around the center of the dish so that it can be heated from the center of the food to be cooked, there is no need to provide a separate space for installing the rotating shaft for stirring, and the cylinders for bearings are heated at the same time. Space saving as a steam jacket for. As a result, the thermal efficiency can be improved and the cooking time can be greatly shortened, which is extremely useful. Further, the pot main body can be enlarged, and the food to be cooked can be uniformly heated, and the simple structure is suitable for industrial mass production.

[Brief description of drawings]

1 is a partial sectional view of a steam pot according to a preferred embodiment of the present invention, FIG. 2 is a partial sectional view showing a stirring rotary shaft portion, and FIG.
The figure is a plan view of the steam oven. 1 ... Kettle body 2 ... First heating steam jacket 3 ... Partition 4 ... Second heating steam jacket 7 ... Rotating shaft for stirring 8 ... Substrate 9 ... Bearing 10 ... Fixed plate 11 …… Fixing member 12a, 12b, 12c …… Arm 13〜19 …… Vane 21 …… Motor 22 …… Endless belt

Claims (1)

[Scope of utility model registration request] 1. A pot main body, a first heating steam jacket attached so as to surround an outer wall surface of a middle portion and a bottom of the pot main body, and extending from the bottom of the pot main body to the inside of the pot main body. A tubular second heating steam jacket having an annular space in cross section, and a distal end of the second heating steam jacket rotatably rotatably supported and inserted into the second heating steam jacket. In a steam oven equipped with a stirring rotary shaft protruding from the stirring rotary shaft and a stirring blade provided on the stirring rotary shaft, the second heating steam jacket is independent from the bottom of the first heating steam jacket. A steam pot comprising a jacket, wherein an inlet and an outlet for heating steam are provided at a lower end of the second heating steam jacket.