JPH0540831Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rice cooker, and particularly relates to an improvement in the hinge portion of the outer lid, which is supported at one end by a hinge and is opened and closed.

[Prior Art] Fig. 3 is an explanatory diagram of the configuration of an electric rice cooker for explaining a conventional device, and Fig. 4 is an enlarged explanatory diagram of the main parts thereof, in which A is a front view and B is a side view.

In FIG. 3, 1 is the main body of the electric rice cooker. 2 is a handle equipped with a lock knob 20, 3 is an outer lid, and 4 is a hinge portion provided at one end of the outer lid 3.

The structure around the conventional hinge portion 4 is shown enlarged in FIGS. 4 and 5. 41 is a hinge pin, 42 is two protruding pieces on the main body 1 side, and 43 is two protruding pieces on the outer lid 3 side. Both protruding pieces 41 and 42 are parallel and face each other, and these protruding pieces 41
and 42 are provided with insertion holes 44 and 45 having approximately the same diameter. A hinge pin 41 is loosely fitted into the insertion holes 44 and 45, and the flexible cover portion 21 of the handle 2 holds the hinge pin 41 from above. The outer lid 3 is opened and closed using the hinge pin 41 as a fulcrum.

In FIG. 3, 5 is a partition plate, and 6 is a heat-insulating lid. 7
8 is an inner pot, 8 is an outer pot, 9 is a rice cooking heater disposed between the inner pot 7 and the outer pot 8, and 10 is a heat shield cylinder. 1
A bottom sensor 1 is exposed from a circular hole 81 of the outer pot 8 and comes into contact with the outer bottom surface of the inner pot 7. 12 is the outer case,
13 is a control panel, 14 is a bottom frame, and 15 is a holder. Further, 16 is an appropriate amount of water put into the inner pot 7, and 17 is rice soaked in the water 16.

[Problem to be solved by the invention] As mentioned above, the hinge part of the conventional rice cooker has a hinge pin loosely fitted into the insertion hole of the projecting piece on the main body side and the outer lid side that face each other, and this part is inserted into the handle. It is configured to be covered from above with a cover part. For this reason, if there is a problem with the engaging portion due to some force during assembly, the force during opening/closing, the weight of the outer lid when opened, etc. will be partially applied, causing cracking. In particular, in large rice cookers that cook a large amount of rice, the outer lid is also heavy, which increases the force applied to the hinge, causing cracks to form near the engaging part and breakage when the lid is repeatedly opened and closed.

The present invention was developed to solve these problems with conventional hinges, and by making the hinges sturdy, it is possible to create a rice cooker that is easy to maintain without cracking or breaking. It is something.

[Means for Solving the Problems] In this invention, an insertion hole and a small-diameter hole are provided on both sides of the cover portion of the handle, and the hinge portion is formed with a knurl that is press-fitted into the insertion hole of the protrusion on the hinge pin. be.

[Operation] The hinge portion is assembled by inserting the hinge pin from the insertion hole side of the cover portion of the handle and press-fitting the knurl into the insertion hole of the protrusion. The fit of the hinge pin can be observed through the small diameter hole provided in the cover of the handle. When disassembling the hinge part for repair or inspection, simply insert a stick into the small diameter hole and tap it lightly, the hinge pin will come out and the outer cover can be removed from the main body.

[Embodiment of the invention] Fig. 1 is an explanatory diagram of the main part of the embodiment of the invention, and Fig. 2 is an explanatory diagram of a hinge pin. Figures 1 and 2
Components with the same symbols as in FIGS. 3 to 5 have little difference in shape or function.

However, in the present invention, an insertion hole 46 similar to the insertion holes 44 and 45 of the projections 42 and 43 is provided on one side of the cover portion 21 of the handle at a position opposite to the hinge pin 41. Further, a small diameter hole 47 smaller than the insertion hole 46 is formed on the other side surface of the cover portion 21 .

Reference numeral 48 in FIG. 2 is a gnarl, which is a partially raised outer periphery of the hinge pin 41 and is formed by knurling or the like. The knurl 48 is formed on the outer periphery of the protruding piece 42 corresponding to one of the insertion holes 44 and has a size such that it can be press-fitted into the insertion hole 44 . Both ends of the hinge pin 41 are chamfered 49 with appropriate flat surfaces.

In the rice cooker of the present invention having the above configuration,
After aligning the insertion holes 44, 45, and 46 and the small diameter hole 47 on the same axis, insert the hinge pin 41 into the insertion hole 4.
Insert from the 6th side. When the knurl 48 of the inserted hinge pin 41 reaches the insertion hole 46, it becomes hard due to the enlarged portion, so pressurize it with a suitable means such as a hammer. Then, the hinge pin 41 reaches the position shown in FIG. 1, and the hinge portion 4 is engaged.

With the hinge portion 4 engaged, the hinge pin 4
One end side of 1 is exposed to the insertion hole 46. Also,
The other end side of the hinge pin 41 can be seen through the small diameter hole 47. Therefore, the insertion condition of the hinge pin 41 can be observed at a glance. In this case, since the hinge pin 41 is tightly press-fitted into the insertion hole 44 by the knurl 48, it will not come out.

When removing the outer cover 3 from the main body 1 for inspection or the like, a thin rod may be inserted into the small diameter hole 47 and the hinge pin 41 may be tapped lightly. When one end of the hinge pin 41 is struck, it comes out through the insertion hole 46 on the opposite side, and the outer lid 3 is separated from the main body 1, allowing inspection of the inside.

The lock knob of the rice cooker made in this way 2
When the handle 2 is lifted while pressing the key 0, the outer lid 3 rotates about 100 degrees on the hinge pin 41 as a fulcrum, and the outer lid 3 opens as shown by the two-dot chain line in Fig. 3, opening the main body 1. Remove the inner pot 7 from the open main body 1, add washed rice and water, cover with the warming lid 6, close the outer lid 3, and then press the rice cooking start key (no symbol). The rice cooking heater 9 is energized and rice cooking begins. When the rice cooking heater 9 is energized, it generates heat, and some of this heat directly heats the inner pot 7. In addition, the outer pot 8 is heated.
The heat radiated in the direction is reflected by the inner surface of the outer pot 8, and becomes radiant heat, heating the inner pot 7. This heat then boils the water 16 in the inner pot 7, and ideal "kamado-cooked" rice cooking is performed, which is no different from the old "kamado-cooked" rice cooking.

When the rice is cooked, open the outer lid 3 and serve the rice in a rice bowl using shiyamoji. When the arrangement is finished, the outer lid 3 is closed, and the used handful of shiyamoji is held in the U-shaped part of the flexible shiyamoji receiver 15 and stored.

In the above embodiment, the knurl of the hinge pin was press-fitted into only one protrusion on the main body side, but it may be press-fitted into both, or only into the outer lid side. . Also,
Although FIG. 1 is a drawing in which the tip of the hinge pin is inserted up to the front of the small diameter hole, the small diameter hole may be made in two stages and the hinge pin may be inserted halfway inside. With this configuration, the engagement of the hinge pin is not biased, so the hinge part has the advantage of being able to have a robust structure. Further, although a furnace type rice cooker using radiant heat has been shown, the present invention can also be applied to a hot plate type rice cooker using a hot plate.

[Effects of the invention] As described above, the present invention has a hinge portion in which an insertion hole and a small-diameter hole are provided on both sides of the cover portion of the handle, and a knurl is provided on the hinge pin to be press-fitted into the insertion hole of the protrusion on the main body side. did. As a result, the state of insertion of the hinge pin can be observed without changing the state. Furthermore, there is no need to worry about the hinge pin coming out due to the knurl, and the hinge pin can be removed by inserting a rod into the small diameter hole and tapping it lightly, making it extremely convenient for maintenance and inspection.

Therefore, according to the present invention, it is possible to provide an electric rice cooker that is easy to assemble and inspect, and is robust.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the configuration of the main parts of an embodiment of the present invention, Fig. 2 is an explanatory diagram of the hinge pin, Fig. 3 is an explanatory diagram of the configuration of an electric rice cooker to explain the conventional device, and Fig. 4 is one of the parts. FIG. 5 is an enlarged explanatory view of the main parts of the conventional device, in which A is a front view, B is a side view, and FIG. In the figure, 1 is the main body, 2 is the handle, 3 is the outer lid, 4 is the hinge, 5 is the partition plate, 6 is the heat-retaining lid, 7 is the inner pot, 8 is the outer pot, 9 is the rice cooker, 10
is the heat shield tube, 11 is the bottom sensor, 12 is the outer case,
13 is a control panel, 14 is a bottom frame, 15 is a holder, 16 is water, 17 is rice, 21 is a cover part, 41 is a hinge pin, 42 and 43 are projecting pieces, 4
3 to 45 are through holes, 47 is a small diameter hole, and 48 is a knurl. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims for Utility Model Registration] A hinge pin is engaged with an insertion hole in a protrusion formed facing each other from the main body side and the outer lid side, and the vicinity of this hinge pin is held from above by the cover part of the handle. In a rice cooker having an outer lid that is opened and closed using the hinge pin as a fulcrum, an insertion hole and a small diameter hole are provided on both sides of the cover portion of the handle corresponding to the hinge pin, and an insertion hole for the protrusion is provided in the hinge pin. A rice cooker characterized in that a knurl is formed to be press-fitted into the handle, and the hinge pin is inserted from the insertion hole side of the cover portion of the handle so that the knurl is engaged with the insertion hole of the protrusion.