JPS633609Y2 - - Google Patents

Description

[Detailed description of the invention] The invention is placed at the bottom of an electric rice cooker (including both those with and without heat retention function),
The present invention relates to a mounting structure for a heat shield plate used to block heat from a rice cooking heater from being transmitted downward.

A conventional heat shield mounting structure is constructed as shown in FIGS. 3 and 4. That is, as shown in FIG. 4, the metal heat shield plate a is formed by punching and bending a plurality of bent mounting pieces b, b, b. Screw holes c, c, c are provided at the center of the top, and nail insertion slits d, d, d are provided at the top of the vertical wall. Moreover, the top part i and the bottom part of the plurality of support plates g, g, g arranged between the bottom case e and the inner case bottom f are bent in the horizontal direction, and the screw holes c are formed in the top part i. Screw holes h, h, h that match the screw holes h, h, and pawls j, j, j to be inserted into the pawl insertion slits d are formed, while screw holes k, k, k are formed in the lower part. The screw holes c and h also match the screw hole p provided in the bottom f of the inner case and the screw hole r provided in the rice cooker q. The support plate g is attached to the bottom case e by a screw m which is inserted through a flanged bush l and is screwed into the screw hole k. The bent mounting piece b of the heat shield plate a is interposed between the top i of the support plate g and the bottom part f of the inner case, passes through these screw holes c, h, and p, and connects to the screw hole r of the rice cooker q. Screw n screwed into
By fastening, it is attached to the top i of the support plate g integrally with the rice cooking heater q and the bottom part f of the inner case. Note that s is a notch that forms a storage space for a terminal portion, etc.

Although the conventional structure is as described above, it has the following problems.

In order to form the bent mounting pieces b, b, b of the heat shield plate a, not only punching but also bending is required, which increases the processing cost of the heat shield plate a.

The heat shield plate a must be installed using screws n not only on the support plate g but also on the rice cooker q and the bottom part f of the inner case, so in order to match these screw holes and screw holes. The positioning work of the heat shield plate is not easy, and the work of installing the heat shield plate is difficult.

The mounting position of the heat shield plate a is lower than the rice cooker heater q by a height approximately equal to the step of the bent mounting hole b, but since it is difficult to increase the step, The mounting position cannot be set freely. For this reason, the above-mentioned notch s etc. are required, which leads to a decrease in the heat shielding effect.

The purpose of the present invention is to solve the problems of the above-mentioned conventional example, and as shown in FIGS. Slits 4, 4 are provided at intermediate height positions of the plurality of support plates 3, 3 disposed between the case bottom 2, and a plurality of projecting pieces 7 are provided on the periphery 6 of the metal heat shield plate 5. , 7, and the heat shield plate 5 is supported by the support plates 3, 3 by inserting the projecting pieces 7, 7 into the slits 4, 4. It is characterized by

The present invention will be specifically explained below based on the embodiment shown in FIGS. 1 and 2. In the figure, a main body 8 is composed of an outer case 9, an inner case 10, a bottom case 1, etc., and a lid 11 is pivotably attached to the upper end of the main body 8 in a detachable manner. A rice cooking heater 12 consisting of a hot plate 12a and a heater wire 12b is arranged on the bottom 2 of the inner case 10, and a rice cooker 13 is disposed inside the inner case 10.
are arranged.

Two supporting plates 3, 3 are arranged between the bottom case 1 and the inner case bottom 2 so as to face each other. As shown in FIG. 2, this support plate 3 is formed by bending a band-shaped metal plate, the top part 14 of which is bent inward in the radial direction, and the lower part 15 thereof is bent radially outward. ing. A screw hole 16 is bored in the center of the top portion 14, and a claw having a vertical cross section is protruding from the end surface of the top portion 14. On the other hand, the lower part 15
A screw hole 18 is provided in the center. Further, a slit 4 is provided in the vertical direction of the support plate 3 at an intermediate height position (preferably a slightly upward position). Holes 20, 20 are provided in the bottom case 1,
Flange bushes 21, 21 are fitted here, and by screwing the screws 22, 22 inserted into the flanged bushes 21, 21 into the screw holes 18, 18, the support plates 3, 3 is attached to bottom case 1. In addition, the inner case bottom 2 and the rice cooker heater 12 have screw holes 2 that match the screw holes 16, 16, respectively.
3, 23 and screw holes 24, 24 are provided, and these screw holes 16, 16, 23, 23, screw holes 24,
24 and screws 25, 25 are used to fasten the support plate top 14, the inner case bottom 2, and the rice cooking heater 12 together. The claw 17 is inserted into a hole 26 provided in the bottom 2 of the inner case, and its tip is in contact with the upper surface of the bottom 2 of the inner case.

As shown in FIG. 2, the heat shield plate 5 is formed by punching out a metal plate into a substantially circular shape, and has a pair of protrusions 7, 7 at opposing positions on its periphery 6. . This heat shield plate 5 is supported by the pair of support plates 3, 3 by inserting the projecting pieces 7, 7 into the slits 4, 4. Note that 27 is a hollow portion provided at the center of the heat shield plate 5. Further, the heat shield plate 5 can be attached to the support plates 3, 3 after the support plates 3, 3 are fixed between the inner case bottom 2 and the bottom case 1, but in this case, the heat shield plate 5 should not be bent. , the protrusion portion 7,
Needless to say, it is necessary to carry out the above-mentioned mounting operation after the slits 7 can be inserted into the slits 4, 4.

In Figure 1, 28 is a center thermo, 29
3 is a switch lever, 30 is a cord reel, and 31 is a heat insulating material.

The present invention can be configured in various ways other than those shown in the above embodiments. For example, the number of protrusions 7 of the heat shield plate 5 is three or more, and the number of the support plate 3 and the slits 4 is changed accordingly. The number can be the same as the number of projecting pieces 7.

Since the present invention has the above configuration, the following effects can be achieved.

Since the heat shield plate can be formed by one punching process, the processing cost can be reduced.

Since the heat shield plate can be attached to the support plate without using screws, the attachment work becomes easy.

By selecting the position of the slit in the support plate, the mounting position of the heat shield plate can be freely set. As a result, for example, the heat shield plate can be placed in a position that does not require a cutout in the conventional example.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of its main components, and Fig. 3 is a vertical side view of the main parts of a conventional example. FIG. 4 is an exploded perspective view showing the main components. 1...Bottom case, 2...Bottom of inner case, 3...
Support plate, 4...Slit, 5...Heat shield plate, 6...
Periphery, 7... protrusion portion.

Claims (1)

[Scope of utility model registration request] A slit is provided at each of the intermediate height positions of the plurality of support plates disposed between the bottom case and the bottom of the inner case, while the metal heat shield plate is punched out so as to have a plurality of protrusions on the periphery. 1. A mounting structure for a heat shield plate for an electric rice cooker, characterized in that the heat shield plate is supported by the support plate by inserting the projecting piece into the slit.