KR102059932B1 - A sweet potato roaster - Google Patents

Abstract

The present invention relates to a sweet potato roaster, which can uniformly cook a sweet potato, and can be easily managed. The sweet potato roaster of the present invention comprises an inner case, a tray, an outer case, a heat insulation case, a dome-shaped cover, an inner case, a rail member, and a protection cover.

Description

Sweet potato roaster {A sweet potato roaster}

The present invention relates to roasting sweet potatoes, and more specifically, using a radiant heat of carbon heater to cook evenly without burning sweet potatoes to protect workers and customers from burns, condensation by the release of steam generated when sweet potatoes ripen and Hot-discharge structure to minimize condensation on the dome cover seated in the upper storage room, dome cover seating structure, guide structure to express aesthetics while allowing convenient opening of the dome cover, and the tray containing the sweet potato in the heating chamber slides smoothly The present invention relates to roasting sweet potatoes with improved rail structure.

In general, the roaster is a device that learns the contents with heat, and is divided into a direct heating method and an indirect heating method using electricity according to a method of providing heat.

For example, in the case of direct heating roasted sweet potatoes, the size of the flame is difficult to control, and the inside of the roasted material is not properly cooked, but only burned on the outside. Particularly, in the case of using firewood as a heat source, ash and soot or harmful gases scattered during combustion contaminate contents and air In the big city, there is a problem that the use of wood-based grilling is restricted, and in order not to burn the sweet potato, there is a problem in that it is necessary to perform a cumbersome work of turning the sweet potato over and over again, and the worker is always waiting to cook the sweet potato evenly. There was a problem in that you have to perform the effort to move the sweet potato from time to time.

On the other hand, in order to solve the problem of the direct heating roasted sweet potato roaster of the indirect heating method is a sieve heater using nichrome or iron chromium as a heating element, a ceramic heater and carbon heater radiating far infrared rays and near infrared rays Therefore, devices that learn to burn sweet potatoes without indirect heat have been proposed.

As an example of the indirect heating of sweet potato roaster, Republic of Korea Utility Model Registration No. 20-0415339 (August 15, 2006) "Multipurpose Grilling" and Registration Utility Model No. 20-0446916 (2009.12.09.) Multi-purpose roaster with a protective cover, and Patent No. 10-1564624 (announced on November 02, 2015) "Potato roasting device" and Patent No. 10-1887468 (announced on Aug. 13, 2018) "Roasting and thermostat" These are proposed, they are cooked evenly without burning sweet potatoes, has a heat insulation arrangement and a protective cover to prevent burns, is provided with a thermostat for storing ripe sweet potatoes, and a communication to exhaust the heat to prevent condensation is provided there was. Since the inner case and the outer case are in direct contact with each other, since the hot heat of the heating chamber is directly transferred to the outer case, there is a risk of burns even if a protective cover is provided. There is a problem that a large amount of water is generated by cooling by indoor air as the water vapor is discharged into the gap between the tray containing the sweet potato and the drip tray containing the residue, and in the case of the exhaust communication of hot water, the water cooled by the indoor air. There is a problem of increasing the manufacturing cost and increasing the volume because a separate container is needed to collect the water, and the moisture formed in the dome-shaped cover of the warming room displaying the ripe sweet potatoes flows downward and flows to the top of the sweet potato roasting device. It was messy and unsanitary in appearance.

Domestic Registration Utility Model No. 20-0415339 (August 15, 2006) Domestic Registration Utility Model No. 20-0446916 (December 2009. Announcement) Domestic registered patent No. 10-1564624 (2015.11.02. Notification) Domestic Patent Registration No. 10-1887468 (August 13, 2018.)

Therefore, the present invention is simple and functionally reasonable structure, easy to assemble and convenient to use without burning sweet potato, easy to manage, and to prevent workers and customers from being burned against defects and deficiencies of the prior art. And tray for accommodating sweet potato with improved heat dissipation structure to minimize condensation due to steam release when sweet potato ripens, seating structure of dome type cover and guide structure for convenient opening of dome type cover The purpose is to provide a sweet potato roasting to express a convenient opening and aesthetics of the rail structure and the domed cover to slide smoothly.

 The sweet potato roaster of the present invention has a heating chamber in which a plurality of carbon heaters are disposed, an inner case equipped with a power control unit at the lower side of the heating chamber, and an accommodating space for accommodating sweet potatoes while being housed in the heating chamber and having a handle on the front plate. A fixed tray, an outer case surrounding the inner surface of the inner case together with a heat insulating material, a heat insulating case protruding a wall surface and a front blocking surface disposed on an upper portion of the inner case and in contact with an upper end of the heating chamber, and an upper portion of the insulating case A dome-shaped cover covering the cover, a rail member comprising a set of first rails and a second rail fixed to the inner case and the tray so as to slide the tray smoothly, and extending perpendicularly from the lower left and right sides of the inner case so as not to be in close contact with the outer case. And the tip is bent upwards to be bent to screw to the outer case. The support piece is integrally formed to include a protective cover that is coupled to and separated from the outer case by the support member while maintaining the separation distance; While arranging a plurality of insulation bushings to block heat transfer between the wall surface of the insulating case and the upper end of the inner case, the lower part screwed together and the inclined part extending while extending outward from the upper end of the lower part and upward from the upper end of the inclined part. A connecting member comprising an extended vertical portion is provided; It is fixed to the connecting member is provided with a plurality of spacers to form a seating groove so as to contact the bottom of the dome-shaped cover at the top while providing an air passage by blocking the lower end of the dome-shaped cover to block the heat transfer. An upper fitting piece and a front fitting piece formed integrally with the bent portion at the upper end and the front part of the outer case so as to be coupled to the vertical part of the fixed connection member and the front part of the inner case to minimize heat transfer; The support member includes a plurality of locking rods having a seating groove formed in the center thereof, and a fixing piece having a bent portion formed to protrude a perforated portion of the fitting groove so as to correspond to the locking rods. Screws are fixed to the upper left and right sides and the fixing piece is mounted on the upper left and right sides inside the protective cover; Insulating case to minimize the discharge of the heat including the steam discharged to the gap between the front plate contact portion of the tray blocking the front opening of the heating chamber and to directly discharge the heat containing the steam generated in the heating chamber to the outside It is made by forming a discharge hole in the rear edge horizontal portion; It may be characterized by the technical configuration that is made by providing a duct for releasing to the outside by guiding the heat including the water vapor discharged into the discharge hole of the thermal insulation case.

In addition, according to the present invention, on the blocking surface of the front plate and the insulating case of the tray is provided with a decorative plate and the upper support formed of wood processing to express the heat blocking effect and aesthetics, and the opening and closing of the dome-shaped cover on the upper support Forming a guide groove for the finger inlet may be characterized by a technical configuration.

In addition, according to the present invention, while minimizing the contact surface of the metal roller mounted on the first rail and the second rail of the rail member and the upper and lower guide pieces of the first rail that the metal roller is in contact with the metal roller so as to slide smoothly without pushing the side; The upper guide piece of the 2nd rail which a metal roller contact | connects can be characterized by the technical structure which made it incline about 1 to 3 degrees in the up-down direction.

In addition, according to the present invention, the duct is fitted into the discharge hole of the insulating case, the lower end is fitted and provides a passage for discharging the heat containing the steam generated in the heating chamber while contacting along the lower end and the inclined portion and the vertical portion to the outside. The duct is fixed together when fastened with a fastening screw for fixing the spacer, it may be characterized in that the technical configuration consisting of the heat containing the water vapor guided to the duct is ejected in the domed cover direction.

The sweet potato roaster of the present invention is made of a minimum contact by the connecting member is fixed with the bushing to block the heat transfer and the upper fitting and the front fitting bent to fit into the front portion of the upper and inner cases of the connecting member By improving the combined structure, the heat transfer of the heating chamber is weak, and the worker and the customer are safe from burns, and the heat discharge including the steam generated when the sweet potato ripens by the exhaust hole and the duct perforated in the insulation case is smooth. The condensation can be minimized at the bottom plate of the bottom plate, and the dome-shaped cover that is stably seated on the spacer is formed at the bottom of the air passage to prevent heat transfer, so it is safe at high temperature and can minimize condensation, improving visibility. Decorative plates and upper support made of wood are safe from burns In addition to protecting the crab, the top support supports the opening of the dome-shaped cover with a guide groove, while minimizing the contact surface of the metal roller fixed to the first rail and the second rail. The tray for accommodating sweet potatoes by the upper and lower guide pieces which are inclined so as not to be pushed is smoothly sliding, thereby providing convenience of use.

1 and 2 is a perspective view showing a state in which the roasting sweet potato according to the present invention.
Figure 3 is a perspective view showing a state in which sweet potato roaster combined according to the present invention.
4 is a cross-sectional view taken along the line AA of FIG.
5A and 5B are cross-sectional views taken along line BB of FIG. 3, showing a tray in which a tray is accommodated.
6 is an enlarged view of a portion 'C' of FIG. 4.
FIG. 7 is an enlarged perspective view illustrating a cutout portion 'D' of FIG. 1. FIG.
8 is an enlarged perspective view showing a state of coupling the connecting member and the duct of the sweet potato roaster according to the present invention.
9 and 10 are a side view and a perspective view showing an 'E' portion of FIG. 5 and an enlarged portion thereof.
11 (A) and (B) is a perspective view and a longitudinal cross-sectional view showing a coupling state of the rail member of the sweet potato roaster according to the present invention.

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to the accompanying drawings. In describing the present invention, the term or word used in the present specification and claims is based on the principle that the inventor can appropriately define the concept of the term in order to best describe the invention of his or her own. It should be interpreted as meanings and concepts corresponding to the technical idea of

As shown in the present invention, as shown in FIGS. 1 and 2, a plurality of carbon heaters 10 and 10 ′ are disposed on the upper and lower sides of the interior, and the heating chamber 11 and the lower side of the heating chamber 11 are opened. It has an inner case (1) equipped with a power control unit 91, and an accommodating space (21) that is housed in the heating chamber (11) of the inner case (1) to contain the contents, such as sweet potatoes, to learn A tray (2) fixing the handle (23) to (22), an outer case (3) surrounding the circumferential surface of the inner case (1) with the heat insulating material (14) except for the opening portion and the power control unit (91); Insulating case (4) is formed on the upper portion of the inner case (1) protruding the wall surface 41 in contact with the top of the heating chamber (11) serving as a ceiling and the blocking surface (42) blocking the front, and the thermal insulation A dome-shaped cover 92 covering the upper part of the case 4 and a first rail 51 fixed to the inner case 1 so as to slide the tray 2. A pair of rail members 5 having a second rail 52 fixed to the tray 2 and metal rollers 53, 53 'mounted on the first rail 51 and the second rail 52; Is formed in the same planar "C" shape on the same as the outer case (3), so as not to be in close contact with the outer case (3) extending in an orthogonal state from the lower left and right sides and the front end is bent upwards and screwed to the outer case Basic configuration consisting of a protective cover 6 is formed integrally with the support piece 61 is formed to be bent so as to maintain the separation distance, the upper end is coupled to and separated from the outer case 3 by the support member 8 It will be used, and a detailed description of the combination and operation of the basic configuration will be omitted.

The main core technology of the present invention is simple in structure, functionally reasonable, easy to assemble and easy to use without burning sweet potatoes, easy to manage, and to prevent workers and customers from being burned, the connection member 7 and the bushing (93) Duct (95) is a hot air discharge structure for improving the coupling structure of the outer cover (3) and the protective cover (6) using the support member (8) and minimizing condensation due to the release of steam generated when the sweet potatoes are ripe. ) And a spacer (94) and a top support (97), which are seating structures of the dome-shaped cover (92) and guide structures that can be conveniently opened. ) Is to improve the rail member (5) for sliding smoothly.

Accordingly, the present invention is to conveniently combine the upper fitting piece 31 of the outer cover (3) which is the part where the hands of the operator and the customer is most easily contacted, but the connection member 7 and the bushing ( 93). The connection member 7 is made of a high-temperature acetal or Teflon material to block the heat transfer between the upper surface of the inner surface and the wall 41 of the insulating case 4, as shown in Figures 2, 4 and 6 The lower end portion 71 is formed and screwed together with a plurality of insulating bushings 93 formed with a hole for fastening in the center, and inclined outward from the upper end of the lower end portion 71, while being extended by the thickness of the insulating material 14. It consists of an inclined portion 72 that extends and a vertical portion 73 that extends upwardly from the top of the inclined portion 72 to form a wall, and is formed in a planar "C" shape with the front open.

In addition, the inclined portion 72 of the connecting member 7 is transferred from the connecting member 7 while reducing condensation by providing an air passage by separating the lower end of the domed cover 92 as shown in FIGS. 2 and 6. Spacer 94 for blocking heat is fixed by a plurality of screws. The spacer 94 has a mounting groove 941 formed at the top thereof so that the lower end of the domed cover 92 is in contact with each other, and fixing holes are formed to be screwed into the inclined portion 72 of the connection member 7 at both sides. Is done.

On the other hand, the upper portion and the front portion of the outer case (3) will be modified in its structure so as to minimize the heat transfer from the inner case 1 and in Figures 2, 6 and 7, that is, the outer case The upper end of the (3) is fitted with the vertical portion (73) of the connecting member (7) fixed to the wall surface 41 of the heat insulating case (4), the front portion of the outer case (3) the front portion of the inner case (1) The upper fitting piece 31 and the front fitting piece 31 'are formed integrally bent so as to surround the 12 and be bent to minimize heat transfer, and the space is formed to be in contact with each other.

The upper fitting piece 31 and the front fitting piece 31 ′ of the outer case 3 are in contact with the vertical part 73 of the connecting member 7 and the front part 12 of the inner case 1. What can be screwed to the lower end of the outer case (3) to the lower bent piece 13 protruded and bent the bottom edge of the inner case (1) in order to provide a thermal insulation material 14 arrangement space, as shown in FIG. Fixing both ends of the upper support 97 of the wood material on the upper front of the outer case 3, it is possible through the support of the insulating material 14 disposed therebetween.

On the other hand, the support member 8 for fixing the protective cover 6 has a plurality of engaging rods 81 formed with a seating groove 811 in the center of the cylindrical, as shown in Figs. Corresponding to the 81, the fitting groove 821 is made of a fixing piece 82 bent the edge portion so that the perforated portion protrudes. The locking rod 81 is formed of acetal or Teflon material to prevent heat transfer and is fixed by screwing on the upper left and right sides of the outer case 3, the fixing piece 82 is formed by bending a metal plate but perforated The fitting groove 821 is preferably formed in an open shape in which the lower part is widened and narrowed so as to stably and smoothly descend from the upper side by the catching rod 81, and by welding to the upper left and right sides inside the protective cover 6. It is fixed.

In addition, it includes water vapor toward the rear of the heating chamber 11 to minimize the heat discharge including the water vapor in the gap between the contact portion of the front plate 22 of the tray 2 to block the front opening of the heating chamber 11. A discharge structure is provided for naturally discharging heat. The discharge structure is such that the hot air containing the discharge hole 43 and the water vapor discharged from the discharge hole 43 is formed in the rear edge portion of the insulating case 4 is not directly in contact with the dome-shaped cover 92 It consists of a duct 95 which guides the ejection toward the body when in close proximity for the management and purchase of managers and customers.

As shown in FIG. 8, the discharge hole 43 of the insulating case 4 may include a heat insulating case in which heat including water vapor generated in the heating chamber 11 flows to the opposite side of the tray 2 to be directly discharged to the outside. The rear end of 4) is made of a long perforation while forming a plurality of connecting parts in the middle to maintain durability in the horizontal portion.

The duct 95 guides the heat including the water vapor discharged to the discharge hole 43 of the heat insulating case 4 as shown in FIGS. 8 and 9 to discharge the heat to the outside of the heat insulating case 4. Occurs in the heating chamber 11 while contacting along the lower portion 71, the inclined portion 72 and the vertical portion 73 of the lower stiffening piece 951 and the connecting member 7 which are fitted into the discharge hole 43. It consists of a barrier wall (952) bent on both sides to provide a passage for discharging the heat containing steam to the outside, the duct (95) is connected while the spacer 94 is in contact with the inclined portion (72) When screwed into the inclined portion 72 of the member 7 is fixed together, the height of the tip of the vertical portion 73 of the duct 95 is higher than the top height of the upper fitting piece 31 of the outer case 3 It is formed to be low so that the hot air containing steam is ejected in the upper straight direction and the dome-shaped cover 92 .

On the other hand, the rail member (5) for guiding the tray (2) to move the sweet potato to the heating chamber (11) is a first rail fixed to both side wall portions of the inner case (1) as shown in Figs. 51 and a metal roller mounted on the first rail 51 and the second rail 52, the second rail 52 being fixed to both sides of the side wall providing the accommodation space 21 of the tray 2; 53, 53 'and the upper guide piece 521 of the upper and lower guide pieces 511 of the first rail 51 in contact with the metal roller 53' and the second rail 52 in contact with the metal roller 53. It is formed to make an inclination of about 1 to 3 degrees in the vertical direction. Accordingly, the metal rollers 53 and 53 'contacting the upper and lower guide pieces 511 of the first rail 51 and the upper guide pieces 521 of the second rail 52 have a small contact area, thereby minimizing frictional force. While the tray 2 is kept in the center instead of being driven to one side, it is made to slide smoothly, and the rear end of the upper guide piece 521 of the second rail 52 is connected to the metal roller 53 and attached to the tray 2. A locking jaw 522 is formed to stop the movement.

In addition, the front plate 22 of the tray 2 and the blocking surface 42 of the insulating case 4 are mounted with a decorative plate 96 formed of wood and an upper support 97 to express a heat blocking effect and aesthetics. It is provided so as to form a guide groove 971 for the finger inlet for opening and closing the dome-shaped cover 92 in the upper portion of the upper support 97 is provided to provide convenience.

And not only to cook the sweet potato through the tray (2), but it can be found that potatoes, chestnuts, corn and eggs can be cooked, and the screws necessary for screwing each component in the drawings are omitted.

Therefore, the sweet potato roaster of the present invention configured as described above by fixing the first heat insulating case (4) serving as a ceiling to the upper end of the inner case (1) by welding or screwing as shown in Fig. A plurality of bushings 93 are brought into contact with the wall surfaces 41 located on both sides and the rear surface of (4), and at the same time, the lower end 71 of the connecting member 7 is screwed to keep warm by heat of the heating chamber 11. The case 4 itself is primarily prevented from being directly transmitted to the connection member 7.

Subsequently, an upper portion of the outer case 3 is provided on the outer circumferential surface of the inner case 1 with the vertical portion 73 of the connecting member 7 and the front portion 12 of the inner case 1 interposed therebetween. After inserting the fitting piece 31 and the front fitting piece 31 ', the lower part of the outer case 3 is screwed into the lower bent piece 13 bent at the lower edge of the inner case 1. 6 through 9, the upper fitting piece 31 and the front fitting piece 31 ′ of the outer case 3 are brought into minimal contact with each other, as shown in the enlarged views of FIGS. 6 and 9. It is possible to minimize the transmission to the final outer case (3).

Opening and closing of the decorative plate 96 and the domed cover 92 formed of wood on the front plate 22 of the tray 2 and the blocking surface 42 of the insulating case 4, in which the hands of the worker and the customer frequently contact each other. By providing and installing the upper support 97 formed with a guide groove 971 for the finger inflow for preventing heat from being transmitted to the handle 23 and safe and beautiful from the image when opening and closing the dome-shaped cover 92 will be.

In addition, when the duct 95 is screwed together with the spacer 94 to the inclined portion 72 of the connecting member 7 as shown in Figs. 8 to 10 to the discharge hole 43 of the insulating case 4 Since the heat containing steam is discharged, condensation occurs in the portion of the front plate 96 of the tray 2, which is the opening of the heater 11, and the heat including the steam discharged by the guide of the duct 95 is reduced. As shown in FIG. 9, the heat is contacted with the outside air while being ejected in the upper straight direction and the domed cover 92 direction, and thus is safe from burns.

In addition, as shown in FIG. 11A, the rail member 5 formed so as to tilt the upper and lower guide pieces 511 of the first rail 51 and the upper guide pieces 521 of the second rail 52 so as to be inclined. As shown in FIG. 11B, the metal rollers 53 and 53 'contacting the upper and lower guide pieces 511 of the first rail 51 and the upper guide pieces 521 of the second rail 52 are minimal. Since frictional force is reduced to the contact area, the sliding is smooth and the upper and lower guide pieces 511 and the upper guide pieces 521 are kept in an inclined state rather than a horizontal state even when a small deformation occurs due to the heat of the heating chamber 11. Therefore, the tray 2 is always operated smoothly in a state of low friction.

Also, as shown in FIGS. 2 and 6, a support member 8 including a locking rod 81 screwed to both upper sides of the outer case 3 and fixing pieces 82 welded to both inner side surfaces of the protective cover 6. ) Is easily inserted into the fitting groove 821 of the fixing piece 82 into the seating groove 811 of the catching rod 81, and is caught and caught, and the support piece 61 at the lower end of the protective cover 6 is Since it is easily fixed by screwing in contact with the bottom of the outer case (3), the protective cover (6) is to protect the safety of workers and customers from heat in a stable fixed state.

Therefore, it is easy to use and manage while being cooked evenly without burning sweet potatoes by simple assembly and radiant heat of carbon heaters 10 and 10 ', and it is safe and beautiful by preventing users and customers from being burned.

Although described and illustrated in connection with the preferred embodiment of the present invention above, it is not limited to the configuration and operation as shown and described above. Therefore, it will be appreciated by those skilled in the art that the above embodiments can be appropriately modified and modified, and therefore, appropriate changes, modifications, and equivalents should be considered to be within the scope of the present invention.

1: inner case 11: heating chamber
12: front part 13: lower bend
14: insulation 2: tray
21: accommodating space 22: front panel
3: outer case 31: top fitting
31 ': front fitting 41: wall
42: blocking surface 43: discharge hole
5: rail member 51: first rail
52: 2nd rail 53, 53 ': metal roller
511: upper and lower guide pieces 521: upper guide pieces
6: protective cover 61: support piece
7: connecting member 71: lower part
72: inclined portion 73: vertical portion
8: support member 81: locking rod
82: fixing piece 811: seating groove
821: fitting groove 91: power control unit
92: domed cover 93: bushing
94: spacer 95: duct
951: Hanging Piece 952: Barrier Wall
96: decoration plate 97: upper support
98: drip tray 10, 10 ': carbon heater

Claims (4)

A plurality of carbon heaters 10 and 10 'are disposed on the upper and lower sides of the inside, and an inner case 1 in which a heating chamber 11 having a front surface is opened and a power control unit 91 are mounted below the heating chamber 11. And a tray 2 having an accommodating space 21 which is housed in the heating chamber 11 of the inner case 1 and contains contents such as sweet potatoes, and fixed with a handle 23 on the front plate 22. The outer case 3 surrounding the circumferential surface of the inner case 1 except for the opening portion and the power control unit 91 and the heat insulating material 14 and the heating case 11 are disposed above the inner case 1. The heat insulating case 4 which protruded and formed the wall surface 41 which contact | connects the upper end, and the blocking surface 42 which blocks the front, the dome-shaped cover 92 which covers the upper part of the said heat insulation case 4, and the said tray 2 ) To the first rail 51 fixed to the inner case 1, the second rail 52 fixed to the tray 2, and the first rail 51 and the second rail 52 to slide The rail member 5 which comprises the metal rollers 53 and 53 'which are mounted, and it is formed in the "c" shape on the same plane as the said outer case 3, and is not in close contact with the outer case 3 inside. A support piece 61 is formed integrally extending from the left and right lower ends and bent to the upper end and bent to fix the screw to the outer case 3 so that the upper end is supported by the support member 8 while maintaining the separation distance. It includes a protective cover 6 which is coupled to and separated from the outer case (3),
The lower end portion 71 and the lower end portion 71 are screwed together while arranging a plurality of insulating bushings 93 for blocking heat transfer between the wall surface 41 of the insulating case 4 and the upper end of the inner case 1. A planar " c " connecting member 7 comprising an inclined portion 72 extending outwardly from an upper end of the inclined portion and a vertical portion 73 extending upwardly from an upper end of the inclined portion 72;
It is fixed to the inclined portion 72 of the connecting member 7 while the bottom of the dome-shaped cover 92 to provide an air passage and blocking the heat transfer while the bottom of the dome-shaped cover 92 in contact with the seating groove ( A plurality of spacers 94 forming 941 are provided;
The vertical part 73 of the connection member 7 fixed to the wall 41 of the heat insulating case 4 and the front part 12 of the inner case 1 are inserted and combined to minimize heat transfer. An upper fitting piece 31 and a front fitting piece 31 ', which are bent at upper and front ends of the outer case 3, are integrally formed;
The support member 8 has a plurality of engaging rods 81 having a seating groove 811 formed in the center of the cylindrical shape, and the edges of the fitting grooves 821 are formed to protrude to correspond to the engaging rods 81. Consists of a fixing piece 82 formed bent portion, the locking rod 81 is fixed to the upper left and right sides of the outer case 3 by screwing, the fixing piece 82 is left and right inside the protective cover (6) Fixed to the top;
The heat containing the steam generated in the heating chamber 11 is minimized while minimizing the heat discharge including the steam into the gap between the contact portion of the front plate 22 of the tray 2 which blocks the front opening of the heating chamber 11. It is made by drilling the discharge hole 43 in the horizontal portion of the rear edge of the thermal insulation case (4) so that it can be discharged directly to the outside,
Sweet potato roaster, characterized in that the duct (95) is provided to guide the heat containing the steam discharged to the discharge hole (43) of the insulation case (4) to the outside.
The decorative plate 96 and the upper support of claim 1, wherein the front plate 22 of the tray 2 and the blocking surface 42 of the insulating case 4 are formed of wood to form a heat blocking effect and aesthetics. Sweet potato roasting, characterized in that provided with a 97, a guide groove (971) for the inflow of the finger for opening and closing the dome-shaped cover (92) at the top of the upper support (97).
The tray (2) according to claim 1, wherein the tray (2) is pushed to one side while minimizing the contact surfaces of the metal rollers (53, 53 ') mounted on the first rail (51) and the second rail (52) of the rail member (5). The upper guide piece 521 of the upper and lower guide pieces 511 of the first rail 51, which the metal rollers 53 ′ contact, and the upper guide piece 521 of the second rail 52, which the metal rollers 53 contact, are vertically oriented so as to slide smoothly without sliding. Sweet potato roaster characterized in that formed to form an inclination (α) of about 1 to 3 degrees in the lateral direction.
The lower portion 71 and the inclined portion 72 of the lower stiffening piece 951 and the lower portion of the connection member 7 are fitted into the discharge hole 43 of the insulating case 4. And a blocking wall 952 bent at both sides to provide a passage for discharging the heat including water vapor generated in the heating chamber 11 to the outside while contacting the vertical portion 73. 95 is fixed together when the spacer 94 is screwed to the inclined portion 72 of the connecting member 7 in contact with the inclined portion 72, the end of the vertical portion 73 of the duct (95) Sweet potato roaster, characterized in that the height is formed to be lower than the top height of the upper fitting piece 31 of the outer case (3) so that the heat containing steam is ejected in the direction of the dome-shaped cover (92).

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