JP2592419Y2 - Heating hopper for rice laying machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a heat retaining hopper which is used by being installed on an upper part of a rice laying machine.

[0002]

2. Description of the Related Art A rice laying machine is used for automatically laying rice on a large number of bowls and dishes in a commercial kitchen (for example, see Japanese Patent Publication No. 4-73681). This rice laying machine is equipped with a hopper having a heat insulating property through a shutter at an upper portion, and a certain amount of rice is dropped from the hopper to the rice laying machine.

Conventionally, as shown in FIG. 6, the above-mentioned hopper is composed of an outer container 1 and a tapered inner container 2 which are joined together by ultrasonic welding, heat welding or the like, and a foam such as urethane foam is formed inside. A hopper main body 6 having a tapered internal space in which the lower end opening 5 is narrower than the upper end opening 4 by filling the heat insulating material 3 consisting of The upper end of the inner cylinder 7 is engaged with the periphery of the upper opening 4 so as to cover the lid 8.

[0004]

In the conventional heat retaining hopper as described above, the heat insulation of the inside is caused by the heat of the rice put into the inside of the hopper at the time of use and the heat received when approaching the cooking heat source of the kitchen. An unfoamed portion of the material 3 may foam. Further, if the water that has entered during the washing is accumulated inside, the heat generated as described above causes the foamed heat insulating material 3
May foam again.

[0005] The phenomenon in which the heat insulating material 3 foams due to heat received during use is generally called secondary foaming. However, when secondary foaming occurs, the volume of the heat insulating material 3 increases, so that the content of the heat insulating material 3 increases. There is a problem that the container 2 is deformed.

[0006] Therefore, an object of the present invention is to solve the above problems by increasing the strength of the inner container.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention fills a space between an outer container and a tapered inner container with a heat insulating material made of a foam, and opens an opening at a lower end compared to an upper end opening. Constitutes a hopper body having a tapered internal space, and a tapered inner cylinder is inserted inside the hopper body, and an upper end of the inner cylinder is engaged with a peripheral edge of an upper end opening of the hopper body. And, in the heat retaining hopper for a rice laying machine in which a lid is put on an upper end of the hopper main body, a reinforcing rib is formed on the inner container, and a reinforcing ring is fitted on an inner peripheral surface of the inner container. It is.

[0008]

When the secondary foaming of the heat insulating material occurs, the inner container is reinforced by the presence of the reinforcing ribs and the reinforcing ring, so that the inner container is prevented from being deformed or lifted.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 to 3, a warming hopper for a rice laying machine according to a first embodiment comprises a hopper body 13 composed of an outer container 11 and an inner container 12, an inner cylinder 14 and a lid 15. Become.

The outer container 11 has two holding recesses 17 on the peripheral wall 16 and a fitting rib 19 for the lid 15 on the upper wall 18 whose upper end is bent inward at the entire periphery. . Further, outwardly protruding engaging ribs 21 are provided at two places on a part of the fitting ribs 19 (see FIG. 3), whereby the lid 15 is engaged. Two positioning protrusions 20 are provided at two positions on the left and right at a fixed interval on the fitting rib 19.

Further, a lower end of the peripheral wall 16 is bent inward to form a bottom wall 22 wider than the upper wall 18, and an upward bent portion 23 is provided on an inner peripheral line of the bottom wall 22. . A circumferential reinforcing rib 30 is formed on the bottom wall 22. This reinforcing rib 30 may be formed in the radial direction.

The inner container 12 has a tapered cylindrical body having a large diameter at the upper end and a small diameter at the lower end, and engages the U-shaped engaging portion 24 at the upper end with the inner peripheral edge of the upper wall 18 of the outer container 11. The metal reinforcing ring 26 is fitted into the recess 25 between the inside of the engaging portion 24 and the tapered surface (see FIG. 2A).
Also, the lower edge 27 of the inner container 12 is connected to the bent portion 2 of the outer container 11.
3 and a seal member 28 having an adhesive applied to both surfaces thereof is interposed between the lower edge 27 and the bent portion 23 (see FIG. 2B), thereby joining the two.
Reinforcing ribs 29 protruding outward over the entire circumference are formed in multiple steps on the wall surface of the inner container 12.

Instead of the reinforcing ribs 29, spiral reinforcing ribs may be formed, and reinforcing ribs in the vertical direction may be formed radially.

The inner peripheral surface of the outer container 11 and the outer peripheral surface of the inner container 12 are subjected to a primer treatment in order to improve the adhesiveness to urethane foam.

A urethane resin is injected into the internal space formed by the outer container 11 and the inner container 12, foamed, and filled with a heat insulating material 31. The heat insulating material 31 is adhered to the outer container 11 and the inner container 12 by its own adhesiveness.

The hopper body 13 having the above configuration is
The upper end opening 32 has a tapered inner space larger than the lower end opening 33, and a metal inner cylinder 14 having a taper along the inner surface of the inner container 12 is removably inserted into the inner space. The inner cylinder 14 has an engagement flange 35 whose upper end is bent outward, and a lower end 34 is formed in a cylindrical shape.
The engaging collar 35 is further provided with a positioning projection 34 projecting outward (see FIG. 3), which is fitted and positioned between the positioning projections 20, 20 described above.

The lid 15 is detachably mounted on the hopper body 13 and has a protrusion 36 provided inside the outer peripheral edge thereof.
(See FIG. 1) is engaged with the lower surface of the engagement rib 21. Insulation material 3 made of urethane foam inside lid 15
7 are filled.

FIG. 4 shows another embodiment. In this case, a circumferential recess 38 is formed in an intermediate portion of the inner container 12, and a metal reinforcing ring 39 is fitted in the recess 38. A circumferential recess 4 is also provided inside the bent portion 23 at the lower end of the outer container 11.
The lower edge 27 of the inner container 12 is fitted to the protruding portion of the outer peripheral surface to prevent the inner container 12 from falling off in the vertical direction, and a metal reinforcing ring 42 is fitted to the inner peripheral surface of the recess 41. doing. Sealing is achieved by bringing the outer peripheral surface of the recess 41 into close contact with the lower end edge 27 of the inner container 12 by the reinforcing ring 42. Other configurations are the same as those in the first embodiment.

FIG. 5 shows an example of the use of the above-mentioned heat retaining hopper. In FIG. 5, reference numeral 43 denotes a shutter, 44 denotes a rice laying machine, 45 denotes a bowl mounting table, and the rice is cooked in the inner cylinder 14 of the hopper. The rice 46 is put in, the lid 15 is covered, and the shutter 43 is opened while the rice laying machine 44 is driven.

In this case, even if the heat of the rice 46 is transmitted to the portion of the heat insulating material 31 or the heat from the heat source in the surroundings is transmitted, the inner container 12 retains the reinforcing rib even if the heat insulating material 31 is foamed secondarily. Since the inner container 12 is reinforced by the reinforcing ring 29 and the reinforcing ring 26 (the reinforcing rings 26, 39, 42 in the case of the second embodiment), the inner container 12 is not deformed.

[0021]

[Effect of the Invention] As described above, this invention forms the reinforcing ribs on the inner container, and fits the reinforcing ring on the inner peripheral surface of the inner container, so that the heat of the rice and the heat from the peripheral heat source can be obtained. Even if the foam is transmitted to the heat insulating material and secondary foaming of the foam occurs, the inner container is reinforced by the above-described reinforcing ribs and the reinforcing ring, so that the inner container is prevented from being deformed or lifted.

[Brief description of the drawings]

FIG. 1 is a sectional view of a first embodiment.

FIG. 2 is a partially enlarged sectional view of the above.

FIG. 3 is a partially exploded perspective view of the same.

FIG. 4 is a partial cross-sectional view of the second embodiment.

FIG. 5 is a sectional view of a use state.

FIG. 6 is a sectional view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Outer container 12 Inner container 13 Hopper main body 14 Inner cylinder 15 Lid 16 Peripheral wall 17 Depression 18 Top wall 19 Fitting rib 20 Positioning protrusion 21 Engaging rib 22 Bottom wall 23 Bent part 24 Engaging part 25 Depression 26 Reinforcement ring 27 Lower edge 28 Seal member 29 Reinforcement rib 30 Reinforcement rib 31 Insulation material 32 Upper end opening 33 Lower end opening 34 Positioning projection 35 Engagement collar 36 Projection 37 Insulation material 38 Recess 39 Reinforcement ring 41 Recess 42 Reinforcement ring 43 Shutter 44 Machine 45 Tea bowl mounting table 46 Rice

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A23L 1/10

Claims (1)

(57) [Scope of request for utility model registration] 1. A hopper body having a tapered internal space in which a lower end opening is narrower than an upper end opening by filling a heat insulating material made of foam between an outer container and a tapered inner container. Then, a tapered inner cylinder is inserted inside the hopper body, an upper end of the inner cylinder is engaged with a peripheral edge of an upper end opening of the hopper body, and a lid is placed on the upper end of the hopper body. A heat retaining hopper for a rice laying machine, wherein a reinforcing rib is formed on the inner container and a reinforcing ring is fitted to an inner peripheral surface of the inner container.