JPS627233Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the improvement of a heat insulating container, and in particular provides a heat insulating container that is excellent in fixing a heat insulating material and in retaining heat.

The embodiments of the present invention will be explained below with reference to the drawings.
Reference numeral 1 designates a cooking device body such as a heat insulating container, which includes a cylindrical outer container 2 with an open top surface, and a cylindrical inner container 4 with an open top surface that is housed in the outer container 2 via a heat insulating material 3. , an annular frame 5 that connects the upper opening edges of the inner and outer containers 2 and 4, a bottomed cylindrical pot 6 that is removably housed in the inner container 4, and a hinge that is not shown. It is comprised of a container lid 7, etc., which is moved to freely open and close the upper surface opening of the outer container 2. Reference numeral 8 denotes a side heating element that is wrapped around the outer upper part of the inner container 4, and is fixed with a mounting bracket 9.
On the lower surface of the annular frame 5, an annular pressing bulge 10 extending to a position below the side heating element 8 is integrally provided vertically. As shown in the figure, the upper end of the heat insulating material 3 is held between the annular pressing jetty 10 and the outer surface of the inner container 4, and at the same time the side heating element 8
Also, the heat insulating material 3 is pressed against the outer surface of the inner container 4. A handle 12 is integrally attached to the upper surface of the container lid 7, and a disk-shaped and flat reinforcing frame 13 whose outer periphery is connected to the outer periphery of the container lid 7 is attached to the lower surface of the container lid 7 to fill the gap 16. It is still attached. Reference numeral 17 denotes a disk-shaped heat dissipation plate attached to the lower surface of the reinforcing frame 13 with a small interval, and has a knob 18 hanging down approximately in the center, an upward flange piece 19 on the outer periphery, and a lid on the upper surface. heating element 2
0 is closely fixed, and further has an outer diameter smaller than the inner diameter of the reinforcing frame 13. Further, a first boss portion 21 is provided on the lower surface of the container lid 7 to form the void 16, and a second boss portion 21 is provided on the lower surface of the reinforcing frame 13 to maintain a small distance from the heat dissipation plate 17. The portions 22 are each integrally formed. 23 is the lid heating element 20
A bent portion 23a is a disc-shaped sealing member coated on the upper surface of the heat sink 17 so as to cover the radiator plate 17, and the bent portion 23a is formed by inserting and fitting the outer periphery into the flange piece 19 and bending the outer periphery edge upward. is brought into contact with the reinforcing frame 13. The heat sink 17, the seal member 23, and the reinforcing frame 13 are fixed to the container lid 7 by overlapping with screws 26, and the outer periphery of the seal member 23 is connected to the flange of the heat sink 17. It is held between the piece 19 and the reinforcing frame 13.
Reference numeral 24 denotes an inner cover that is detachably attached to the knob 18, with a gasket 25 in the center and holes 28 in appropriate places.
and can be freely placed on the pot 6.

According to this configuration, since the upper end of the heat insulating material 3 is held between the annular pressing jetty 10 of the annular frame 5 and the inner container 4, it is possible to prevent the insulating material 3 from falling due to downward displacement. Since the annular pressing jetty 10 is located on the outer side of the side heating element 8 via the heat insulating material 3, the heat of the side heating element 8 is prevented from dissipating to the outside as much as possible, thereby maintaining heat retention. Efficiency is improved.

In addition, the container lid 7 includes a reinforcing frame 13 and a sealing member 23.
Since the heat-insulating space layers A, B, and C are formed with the heat dissipating plate 17, a heat-insulating effect can be obtained without using a heat insulating material as in the conventional case. Moreover, by sandwiching the outer circumferential portion of the sealing member 23 between the heat sink 17 and the reinforcing frame 13 and bringing the tip of the bent portion 23a into contact with the reinforcing frame 13, steam infiltrates into the container lid 7. It is possible to prevent this from happening.

Since the present invention is constructed as described above,
The upper end of the heat insulating material is clamped and fixed between the annular pressing bulge of the annular frame and the inner container to prevent the insulating material from falling, and the annular pressing bulge extends to the outer periphery of the heating element. Heat dissipation to the outside of the heating element is prevented and heat can be kept efficiently.

[Brief explanation of the drawing]

The figure is a schematic cross-sectional view of the main parts of the heat-insulating container of the present invention. 4...Inner container, 5...Annular frame body, 3...Insulating material, 8...Heating element, 10...Annular pressing jetty.

Claims (1)

[Scope of utility model registration request] A cylindrical inner container with an open top surface is disposed inside a cylindrical outer container with an open top surface through a heat insulating material, and the top opening edges of both containers are connected by an annular frame, wherein the inner container is A heating element is wound between the outer upper part and the heat insulating material, and an annular pressing bulge extending to a lower position of the heating element is suspended from the lower surface of the annular frame, and the inner container and the annular pressing bulge are connected to each other. A heat-retaining container characterized in that the upper end of the heat insulating material and the heating element are sandwiched.