Water evaporation suppression plate for roasters

The roaster's inclined plate design traps and condenses evaporated water vapor, addressing frequent replenishment needs by recovering and reusing water, thereby reducing the operational burden.

JP7829217B2Active Publication Date: 2026-03-13SHINPO CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-03-01
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Conventional roasters experience frequent water evaporation and external discharge from the drain pan, necessitating frequent water replenishment due to the radiant heat of the burner.

Method used

A roaster design featuring an inclined plate portion covering the drain pan and a retaining plate protruding outward, trapping water vapor to condense into droplets that return to the pan, reducing the need for frequent water replenishment.

Benefits of technology

The design effectively recovers and reuses most water vapor, minimizing the frequency and amount of water replenishment, thus reducing the operational burden.

✦ Generated by Eureka AI based on patent content.

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Abstract

To address such a problem that water at a bottom of a box body is evaporated and discharged to the outside.SOLUTION: A water evaporation suppressing plate for roasters includes an inclined plate 11 for covering an upper side of a drain pan 5, and a latch plate 12 for the placement step 8, projecting outward from an upper end of the inclined plate 11. When the inclined plate 11 is inclined inward and downward and the water evaporation suppressing plate is fitted into an upper opening of a box body 2, water vapor is stopped in a space formed above a water surface. When the water vapor is brought into contact with an inner surface of a peripheral wall of the box body 2 in a low temperature state, it condenses and turns into water droplets. Then, the water droplets are made to flow down on the inner surface and returned to the original place again. The water evaporation suppressing plate can thus suppress water refilling frequency or even when the refilling frequency is the same, suppress an amount of water to refill.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to an evaporation suppression plate for a roaster that can suppress external discharge of evaporated stored water in a roaster in which water is stored in a lower part of a box body housing a burner.

Background Art

[0002] Conventionally, as a roaster used for grilled meat or the like, there are some that are configured to suppress overheating of a box body by storing water at the bottom of the box body housing a burner, and to prevent sticking of gravy and residues to the inner surface of the box body.

[0003] For example, an opening is formed at the center of the bottom of the box body, a rising wall is formed along the opening, a drain pan is formed between the rising wall and the peripheral wall of the box body at the bottom of the box body, water is stored in the drain pan, a burner is housed inside the rising wall, and at the upper end portion of the box body, a mounting step portion for mounting cooking means such as a grilling net and a rotisserie is formed, and a radiation plate is arranged directly above the burner. In this roaster, since it is difficult for dirt such as oil and burnt residue due to gravy to adhere to the inner peripheral surface of the box body, the cleaning work can be made labor-saving (for example, see Patent Document 1).

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the above conventional technology, the water in the drain pan at the lower part of the box body is heated and evaporated by the radiant heat of the burner. However, since all of this water vapor passes through the mounting cooking means and is externally discharged, there are problems that need to be solved, such as frequent replenishment of water.

Means for Solving the Problems

[0006] In view of the problem of water evaporating from the bottom of the box and being discharged to the outside, based on the above-mentioned prior art, the present invention provides a roaster in which an opening is formed in the center of the bottom of the box, a rising wall is formed along the opening, a drain pan is formed between the rising wall at the bottom of the box and the peripheral wall of the box, water is stored in the drain pan, a burner is housed inside the rising wall, and a radiant plate is placed directly above the burner, and the roaster has an inclined plate portion that covers the top of the drain pan, and a retaining plate portion that protrudes outward from the upper end of the inclined plate portion and attaches to the upper end of the box, and the inclined plate portion is fitted into the upper opening of the box, thereby trapping water vapor in a space formed above the water surface, bringing it into contact with the inner surface of the peripheral wall of the box in a low temperature state, causing condensation and the formation of water droplets, which flow down the inner surface and return to the original state, thereby reducing the frequency of water replenishment or reducing the amount of water replenished even if the frequency of replenishment is the same, and thus solving the above problem. [Effects of the Invention]

[0007] In short, the invention described in claim 1 is a roaster in which an opening is formed in the center of the bottom of a box body, a rising wall is formed along the opening, a drain pan is formed between the rising wall at the bottom of the box body and the peripheral wall of the box body, water is stored in the drain pan, a burner is housed inside the rising wall, and a radiant plate is placed directly above the burner, and the roaster has an inclined plate portion that covers the top of the drain pan, and a retaining plate portion that protrudes outward from the upper end of the inclined plate portion and attaches to the upper end of the box body, and since the inclined plate portion is inclined inward and downward, even if water evaporates from the drain pan, most of it returns to the drain pan, that is, most of the water vapor can be recovered and reused, so the frequency of water replenishment can be reduced, or even if the frequency of replenishment is the same, the amount of water replenished can be reduced, and thus the burden on the worker can be reduced.

[0008] The invention described in claim 2 is housed in a box body in which air is in contact with the outer surface, so the outer wall portion of the box body can be reliably kept at a low temperature, and water vapor in the space below the inclined plate portion can be brought into contact with the low-temperature inner wall surface, condensed into water droplets, and allowed to flow down and be reliably returned to the drain pan.

[0009] The invention described in claim 3 is such that the inclination of the inclined plate portion gradually increases downwards, thus providing a wide space below the inclined plate portion. This increases the residence time of water vapor in this space below, making it easier for water vapor to condense into water droplets.

[0010] The invention described in claim 4 allows the radiant plate to be positioned above the inclined plate portion, so that the lower opening of the water evaporation suppression plate becomes narrower than that of the radiant plate, and most of the generated water vapor can be filled into the space between the box and the inclined plate portion.

[0011] The invention described in claim 5 allows the radiant plate to be placed on the inclined plate portion, so the water evaporation suppression plate according to the present invention can also be used as a means for installing the radiant plate, thus eliminating the need for a separate member for the purpose of installing the radiant plate.

[0012] The invention described in claim 6 is such that, since the lower end of the inclined plate portion is set below the flame port of the burner, in the case of a burner with multiple flame ports arranged around the outer circumference of the tip, if there is no inclined plate portion, the water in the drain pan will be directly heated by the flame from the flame port. However, because there is an inclined plate portion that covers the top of the drain pan, the flame from the flame port does not reach the water in the drain pan, and the rise in water temperature can be suppressed. [Brief explanation of the drawing]

[0013] [Figure 1] This is a schematic cross-sectional view of a smokeless roaster equipped with a water evaporation suppression plate for roasters according to the present invention. [Figure 2] This is a perspective view of the circular type of water evaporation suppression plate for a roaster according to the present invention. [Figure 3] This is a perspective view of the square-type water evaporation suppression plate for a roaster according to the present invention. [Figure 4] This is a perspective view of the rectangular type of water evaporation suppression plate for a roaster according to the present invention. [Modes for carrying out the invention]

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Figure 1 is a schematic cross-sectional view of a roaster equipped with a water evaporation suppression plate according to the present invention. Similar to the prior art, this roaster 1 has an opening 3 formed in the center of the bottom of the box body 2, and a rising wall 4 formed along the opening 3. A drain pan 5 is formed between the rising wall 4 at the bottom of the box body 2 and the peripheral wall of the box body 2, and water W is stored in the drain pan 5. A burner 6 is housed inside the rising wall 4, a mounting step 8 for a mounted cooking means 7 is formed at the upper end of the box body 2, and a radiant plate 9 is positioned directly above the burner 6. Furthermore, the burner 6 has multiple flame ports 14 around its outer edge, and these flame ports 14 are positioned above the upper end of the rising wall 4 so that the flame is radiated towards the drain pan 5.

[0015] The water evaporation suppression plate 10 according to the present invention is fitted into the upper opening of the box body 2 to cover the top of the drain pan 5. It basically has an inclined plate portion 11 that is inward and downward, formed along the opening 3 at the bottom of the box body 2, and a hooking plate portion 12 that protrudes outward from the upper end of the inclined plate portion 11 to the mounting step portion 8 of the box body 2. Furthermore, in a plan view, the portion of the rising wall 4 that protrudes from the water surface of the water W is positioned within the lower opening of the water evaporation suppression plate 10, and it is preferable to further narrow the gap between the lower end of the inclined plate portion 11 and the rising wall 4.

[0016] Specifically, in the case of a cylindrical burner, the drain pan 5 is formed in a ring shape by forming an opening 3 in the center of the bottom of the box body 2. In the case of a bottomed cylindrical box body 2, a water evaporation suppression plate is used in which the upper and lower openings are circular and gradually decrease in diameter downwards, and the slope in the upper part gradually increases downwards, while the lower part remains constant, for example, a trumpet-shaped inclined plate part 11 with a latching plate part 12 around its upper end. In the case of a bottomed rectangular tubular box body 2, a water evaporation suppression plate is used in which the upper and lower openings are square and the slope in the upper part gradually increases downwards, while the lower part remains constant, for example, an inverted truncated square pyramidal inclined plate part 11 A water evaporation suppression plate is used, which has a latching plate portion 12 around its end. When the burner 6 is a rod-shaped burner, a slit-shaped opening 3 is formed in the center of the bottom of the box body 2, extending along its entire length. As a result, the drain pan 5 is formed in two parts on either side of the opening 3. Therefore, a water evaporation suppression plate is used, as shown in Figure 4, which has a rectangular shape for the upper and lower openings and a pair of opposing inclined plate portions 11, 11, and latching plate portions 12, 12 protruding outward from the upper ends of the inclined plate portions 11, 11. The slope of the inclined plate portions 11, 11 gradually increases downwards, and the slope of the lower portion remains constant. The pair of inclined plate portions 11, 11 are integrated by connecting plates 13, 13.

[0017] In the above embodiment, the material of the water evaporation suppression plate 10 is not specifically mentioned, but such a material can be any non-combustible material that is fire-resistant and does not deform due to heat, such as metal or aluminum foil which is convenient for disposability.

[0018] Furthermore, although the inclined plate section 11 is shown as a flat plate in the drawing, it may also be a corrugated plate in which valleys and peaks are continuously formed in the lateral direction, although this is not shown in the drawing.

[0019] Furthermore, in the drawing, it is preferable that the inclination of the inclined plate section 11 gradually increases downwards from the upper part, and remains constant in the lower part, but it may also be constant overall.

[0020] Then, as shown in FIG. 1, since the upper part of the drain pan 5 is covered and hidden by the inclined plate portion 11, the air in the space below the inclined plate portion 11 in the box body 2 rises in that space and then convects along the inner peripheral surface of the box body 2 to become a downward airflow. In this process, it contacts the inner surface of the peripheral wall portion of the box body 2 in a low-temperature state, condenses to form water droplets, and these water droplets flow down the inner surface and return to the drain pan 5 again.

Explanation of Signs

[0021] 1 Roaster 2 Box body 3 Opening 4 Upright wall 5 Drain pan 6 Burner 7 Placing and cooking means 9 Radiation plate 10 Water evaporation suppression plate 11 Inclined plate portion 12 Hanging plate portion 14 Flame outlet W Water

Claims

1. A water evaporation suppression plate for use in a roaster, wherein an opening is formed in the center of the bottom of the box-shaped body, and a rising wall is formed along the opening, a drain pan is formed between the rising wall at the bottom of the box-shaped body and the peripheral wall of the box-shaped body, water is stored in the drain pan, a burner is housed inside the rising wall, and a radiant plate is placed directly above the burner, A water evaporation suppression plate for a roaster, characterized by having an inclined plate portion that covers the top of the drain pan, and a hooking plate portion that protrudes outward from the upper end of the inclined plate portion and attaches to the upper end of the box body, wherein the inclined plate portion is inclined inward and downward.

2. A water evaporation suppression plate for a roaster according to claim 1, A water evaporation suppression plate for a roaster, characterized in that it is housed in the aforementioned box-shaped structure with air in contact with its outer surface.

3. The water evaporation suppression plate for a roaster according to claim 1 or 2, characterized in that the inclination of the inclined plate portion gradually increases downwards.

4. The water evaporation suppression plate for a roaster according to claim 1, 2, or 3, characterized in that the radiant plate can be positioned above the inclined plate portion.

5. The water evaporation suppression plate for a roaster according to claim 4, characterized in that the radiant plate can be placed on the inclined plate portion.

6. The water evaporation suppression plate for a roaster according to claim 1, 2, 3, 4, or 5, characterized in that the lower end of the inclined plate portion is set below the flame port of the burner.

Citation Information

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