JPS5930408B2 - rice cooker - Google Patents

Description

[Detailed description of the invention] The present invention relates to a large-sized rice cooker for commercial use, etc., and aims to improve the operability of storing and taking out a rice-cooking pot, and to make the device small and compact. It is something.

The rice cooking capacity of large rice cookers used for commercial purposes, etc., in which the pot is taken in and out from the side of the container, is approximately 91.
When cooking rice, the total weight of rice, water, and pot is 9 out of 20, making it extremely heavy.

Therefore, in order to improve the operability of the rice cooker, it is extremely important to know how to support such a heavy pot, move it smoothly inside the container when putting it in and take it out, and how to easily place and take out the pot from the pot support frame. This is an important issue.

On the other hand, as land prices have become extremely expensive in recent years, it has become an economically important issue to minimize the kitchen space and establish a functional kitchen system. is necessary.

Conventional models can be roughly divided into three types of configurations: 1.
One method is to arrange a rail above the heating source for rice cooking, configure the rail so that the top surface of the rail and the top surface of the door when opened are located on the same plane, and place the pot directly on top of the rail and slide it. Next, a rail equipped with rollers is placed opposite to the side of the rice cooking heating source, and the rollers of this rail are configured so that they are on the same plane as the rollers provided on the top surface of the door when the door is opened. One method is to place a so-called trivet on top, place the pot on top of this trivet, and use the trivet and rollers to move the pot.Another method is to place the pot horizontally on the side of the pot, and the rear part sticks to the pot by protruding the depth of the pot. In this method, the support part is supported by rails and rollers provided on the inner side surface of the vessel.

In the first method, since the bottom of the pot is directly connected to the rail and the door, the bottom of the pot is easily damaged, and a large force is required to slide the pot, resulting in poor operability.

The second method is unsuitable when the distance between the heating source and the bottom of the pot needs to be quite close, such as with an electric type.Since the trivet is also close to the top of the heating source, it needs to be made of a material with good heat resistance. The size also needs to be one step larger than the width of the bottom of the pot, which is difficult to prevent from thermal deformation due to repeated heating, which is not preferred in practice.

The third method has the disadvantage of increasing the depth of the container and making the rail and pot support frame longer, making the container larger. When placing the pot, the pot must be inserted into the container to some extent or else the pot will fall, resulting in major drawbacks in operability.

The present invention was invented in consideration of the above circumstances, and includes a pan support frame membrane equipped with rollers provided on a pan support frame slidably provided along a rail inside the container body, and a pan support frame membrane equipped with rollers. By configuring the roller to be able to slide on the top surface of the door when it is opened, the operability of the rice cooker for cooking small amounts of rice for commercial use is improved and the overall size is reduced.

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 is a box-shaped outer case, and inside this is a heat insulating material 2.
An inner case 3 is disposed through the inner case 3.

A concave rail 4 and a roller 5 are disposed opposite to each other on the side wall of the inner case 3, and a roller 1 pivotally attached to a substantially rectangular annular pot support frame 6 is inserted into the groove of the rail 4. , the lower edge of the pot support frame 6 is placed on the roller 5.

Further, a pan support frame membrane 8 is disposed on the pan support frame 6 so as to protrude downward, and a roller 9 is pivotally attached to the lower end portion of the pan support frame membrane 8.

Reference numeral 10 denotes a substantially rectangular pot with a flange portion 11 whose upper end is enlarged in diameter outward, and the outer diameter of the lower portion of the flange portion 11 is slightly smaller than the inner diameter of the pot support frame 6;
The outer diameter of the pot support frame 6 is larger than the inner diameter of the pot support frame 6, and the lid 12 is housed inside the flange portion 119, and the flange portion 11
It is placed on the pot support frame 6.

Further, a pot handle 13 for carrying the pot is fixed to the flange portion 11.

A plurality of rice cooking heating sheathed heaters 14 are arranged below the pot 10 at a predetermined distance from the bottom of the pot and are curved into a substantially rectangular ring shape. The temperature sensor 16, which is always biased upward, is configured to come into pressure contact with the bottom surface of the pot 10.

Further, the temperature sensor 16 is connected to a cam rotatably supported via a pin 20 on a flange 19 erected on the bottom back of the inner case 3 by an interlocking rod 18 engaged on the bottom of the temperature sensor case 17. It is connected to a plate 21 via a pin 22.

The cam plate 21 is connected to the inner lower part of the door 24 via a wire 23, and rotates as the door 24 is opened and closed.

A door rotating plate 25 is disposed on the door 24, and when the door is opened, a part a of the door rotating plate 25 is locked inside the main body frame 26 to keep the door 24 horizontal.

At this time, the upper surface of the door 24 is configured to be at the same height or slightly lower than the lower surface of the roller 9 disposed on the pan support frame membrane 8, and the corner of the upper surface of the door 24 on the side of the container body is inclined C. is formed.

Also, on the upper surface of the door 24 is a door handle 21 for opening and closing the door.
is installed.

Both ends of the door handle 27 protrude so as to be at the same height as the bottom surface of the container leg 28 when the door is opened, and the opposite end of the door handle 21 is provided with a side that prevents the pot from sliding on the pot support frame membrane 8. A stopper 29 is fixed to the body to stop it when it is completely removed from the body.

A control circuit board 30 and a relay 31 for controlling rice cooking are housed in a control box 32 on the side of the device, and an operation panel is provided on the front of the control box 32.
A rice cooking start switch 33, an energization stop switch 34, a power lamp 35, and a rice cooking lamp 36 are arranged.

FIG. 2 is a side view of the container in a state in which the pot is pulled out from the container by sliding the pot support frame 6, and the container is placed on a stand 31.

When the depth of this stand 37 is wide and extends to 31', the protruding parts at both ends of the door handle 27 will be moved to the stand 37' when the door is opened.
The structure allows the total weight of the pot to be supported.

In addition, when the device is placed on a platform whose depth is narrow <37〃, the door rotating plate 25
This locks the door 24 horizontally.

At this time, if the placement of the container becomes unstable due to the relationship between the total weight of the pot and the weight of the device, fix the device to the back wall with the fixing bracket 38, or attach the back of the device to the stand 31 with the fixing bracket 39. There is a structure to fix it.

Next, the operation of this embodiment configured as above will be explained.

Washed rice and water necessary for cooking rice are stored in a pot 10, and the pot 10 is stored by placing a flange 11 on a pot support frame 6 and sliding the pot support frame 6 into an inner case 3.

Next, as the door 24 is rotated in the closing direction, the tension on the wire 23 is loosened, and at the same time, the temperature sensor 16, which is constantly biased upward by the compression coil spring 15, imitates the rotation of the cam plate 21, and at the same time the tension on the wire 23 is relaxed. It is pressed against the bottom surface of 10.

Then, by operating the rice cooking start switch 33, the control circuit board 30 operates the relay 31, and the rice cooking heating sheathed heater 14 is energized.

By heating, the rice in the pot 10 absorbs water and enters a cooked state, and eventually the water in the pot 10 decreases, and the bottom of the pot, especially near the heating source, enters a so-called dry-roasted state, and the temperature rises rapidly. .

This temperature rise is detected by the temperature sensor 16 pressed into the bottom of the pot 10, and when the temperature reaches a predetermined temperature, the temperature sensor 1
The control circuit board 30 to which the output terminal 6 is connected operates the relay 31, and the rice cooking heating sheathed heater 14 is cut off.

When the door 24 is opened after 15 to 20 minutes of so-called steaming after the rice is cooked, the wire 23 connected to the lower end of the inner surface of the door 24 moves as the door 24 rotates.
When the cam plate 21 is pulled to the side and rotated, the interlocking rod 18 connected to the cam plate 21 slides downward, and the temperature sensor case 1 containing the temperature sensor 16 connected to the interlocking rod 18 is opened.
7 is pulled down, and the temperature sensor 16, which was pressed against the bottom of the pot 10, is removed.

Therefore, by opening the door 24, the temperature sensor 1
6 can be positioned without any hindrance to sliding and taking out the pot 10.

Next, when the pan 10 or the pan support frame 6 is pulled by hand, the pan support frame 6 slides on the rail 4 and the rollers 5, and the pan support frame membrane 8 moves against the door 2.
4, the roller 9 fixed to the lower end of the pan support frame membrane 8 eventually reaches the top surface of the door 24, and before the rail 4 and rollers 5 can no longer support the steel weight, the pan support frame membrane 8 moves to the door 24. By being able to slide on the top surface, it can sufficiently support a pot weighing around 20 kg.

Eventually, the pan support frame membrane 8 is stopped by the stopper 29 and stops.

At this time, the pot is completely pulled out from the container,
The pot 10 can be easily pulled out from the pot support frame 6 by holding the pot handle 13, or the lid 12 can be removed with the pot 10 pulled out to serve rice or transfer it to a warmer. It's easy to do.

As described above, according to the configuration of the present invention, the pot can be placed and removed while being completely exposed to the outside of the container, and the operation can be performed well using the rails and rollers, allowing for serving rice, It is possible to provide a rice cooker with excellent operability, such as the ability to easily transfer the rice to a warmer, and whose body can be made smaller because there is no need to lengthen the rail and pot support frame toward the back of the body. .

[Brief explanation of the drawing]

FIG. 1 is a front view of a commercial rice cooker according to an embodiment of the present invention, with the door open, and FIG. 2 is a longitudinal sectional side view of FIG. 1 with the pot pulled out. 1... Outer case, 3... Inner case, 4
...Rail, 6...Pot support frame, 8...
...Pot support frame membrane, 9...Roller, 10...
...Pot, 24...Door.

Claims (1)

[Claims] 1 A door that can be opened and closed on the side of the vessel, a pot support frame for supporting a rice cooking pot that can be slid in and out of the vessel along a rail provided inside the vessel, and a pot support frame. The rice cooker is equipped with a roller on the pot support frame membrane provided in the rice cooker, and the roller slides on the top surface of the door when the door is open.