JP4678693B2 - grill - Google Patents

Description

  The present invention relates to a grill provided with a grill, a burner for heating an object to be cooked accommodated in the grill, and an exhaust duct communicating with the inside of the grill.

  In this type of grill, a grill pan on which a grill net for placing the food to be cooked is stored in a grill cabinet so that the grilled juice dripping from the food to be cooked can be received by the grill pan. Here, if the burner continues to burn for a long time, the broth containing the oil accumulated in the grill pan may be abnormally overheated and ignite. A flame generated by the ignition may overflow from the exhaust duct to the outside.

  Therefore, conventionally, a grill provided with a frame trap made of a perforated plate having a large number of ventilation holes in an exhaust duct is known (for example, see Patent Document 1). According to this, the flame is cooled when passing through the vent hole of the perforated plate. Therefore, the propagation of the flame is blocked and extinguished, and the flame can be prevented from overflowing to the outside.

  In the one described in Patent Document 1, a plurality of perforated plates are provided at intervals in the exhaust gas flow direction. And even if the upstream perforated plate becomes hot and the flame cannot be cooled sufficiently, the flame is surely extinguished by cooling the flame with the downstream perforated plate kept at a lower temperature than the upstream perforated plate. I can do it.

However, if the burner continues to burn for a long time, the downstream porous plate also becomes high temperature, and a sufficient flame extinguishing function cannot be obtained. Further, the exhaust resistance increases considerably due to the provision of a plurality of perforated plates.
JP-A-11-248170

  In view of the above points, an object of the present invention is to provide a grill that can surely exert a flame extinguishing function without increasing the exhaust resistance so much.

In order to solve the above problems, the present invention includes a grill box, a burner for heating the foods housed in the grill box, and communicates with the grill box, grill and a discharge duct for exhausting the exhaust gas there are, air in which the flame trap the flame generated by ignition in the grill box is prevented from overflowing to the outside from the exhaust duct is provided in the exhaust duct, the exhaust duct, outside the exhaust duct A pipe through which air flows in and out from both open ends and through which the air flows is provided across the exhaust duct , and a frame trap is constituted by the pipe, and the exhaust gas flows smoothly so as to lick the outer surface of the pipe, The flame is cooled and extinguished by contacting the outer surface of the pipe .

  According to the present invention, even if a flame generated by ignition in the grill warehouse enters the exhaust duct, the flame contacts the outer surface of the pipe and is cooled and extinguished. Even when the burner continues to burn for a long time, the pipe is maintained at a relatively low temperature by the cooling fluid flowing inside, so that the flame extinguishing function is reliably exhibited. Further, since the exhaust gas flows smoothly so as to lick the outer surface of the pipe, the exhaust resistance does not increase so much.

In the present invention, both ends of the pipe is opened to the atmosphere outside the exhaust duct, you the airflow through the cooling fluid inside the pipe.

  FIG. 1 shows a built-in stove incorporated in a countertop (not shown) of a system kitchen. The stove includes a stove main body 1 that is installed so as to drop into an opening formed in the counter top, and a top plate 2 that is placed on the counter top so as to cover the upper surface of the stove main body 1. The stove body 1 includes a total of three stove burners 3, two on the front left and right and one on the rear, and a built-in grill 4. Then, the top plate 2 is formed with openings for allowing the respective conburners 3 to face, and the virtues 5 are placed so as to surround the openings. Further, an exhaust port for the grill 4 is opened at the rear portion of the top plate 2, and an exhaust cover 2a covering the exhaust port is placed. Each cooker 3 is provided with a pan bottom temperature sensor 3a that is positioned in the inner peripheral space and abuts against the bottom surface of the cooking container on the virtues 5 to detect its temperature.

  A grill door 42 that closes a front opening of a grill 40 described later and left and right front panels 6 and 6 are provided on the front portion of the stove body 1 exposed forward under the counter top. Each front panel 6 has a control panel 7 for the stove burner 3 and grill 4 incorporated in the front panel 6 so as to be able to protrude and retract. When the control panel 7 is stored, the front plate 7a of the control panel 7 is provided. Is substantially flush with the front panel 6.

  As shown in FIG. 2, the grill 4 includes a grill box 40 installed in the stove body 1. An exhaust duct 41 is attached to the rear portion of the grill cabinet 40, and exhaust gas from the grill cabinet 40 is exhausted to the outside via the exhaust duct 41 and the exhaust port at the rear of the top plate. 3 and 4, the grill pan 40 has a grill pan 44 on which a grill 43 is placed via a leg piece 43 a vertically suspended, and a pan support for supporting the grill pan 44. A frame 45 is accommodated.

  An upper fire burner 46 is mounted on the ceiling of the grill cabinet 40, and a heat shield cover 40 a is provided so as to cover the upper fire burner 46. Moreover, the recessed part 40b recessed inward in a horizontal direction is formed in the side wall part of the horizontal direction both sides of the grill warehouse 40 between the grilling net 43 and the grill pan 44, and in this recessed part 40b The lower fire burner 47 is arranged facing the window 40c provided on the inner side surface in the lateral direction of the recessed portion 40b. Thus, a double-sided grill that bakes the food on the grill 43 from above and below with the upper fire burner 46 and the lower fire burner 47 is configured.

  In FIGS. 2 and 3, 46 a and 47 a are mixing tubes of the upper fire burner 46 and the lower fire burner 47. Further, the upper fire burner 46 is constituted by an all-primary air combustion burner having a combustion plate 46b attached to the lower surface. On the other hand, the lower fire burner 47 is composed of a Bunsen burner that requires secondary air. And the air hole 40d is opened in the side wall part of the grill warehouse which covers the outer side surface of the recessed part 40b, and secondary air is supplied to the lower fire burner 47 from this air hole 40d. In addition, the air-fuel mixture is directly supplied from the mixing pipe 47a to the lower fire burner 47 on one side in the horizontal direction, but the lower fire burner 47 on the other side in the horizontal direction is disposed outside the rear end wall portion of the grill 40. The air-fuel mixture from the mixing pipe 47a is supplied through the communicating pipe 47b.

  On the outside of both sides in the horizontal direction of the grill cabinet 40, a fixed rail 48 that is long in the front-rear direction and a movable rail 49 that is supported by the fixed rail 48 so as to be movable in the front-rear direction are arranged. Here, a heat shield plate 40e is installed below the grill cabinet 40 with a gap between the bottom wall of the grill cabinet 40. Then, both lateral sides of the heat shield plate 40e are bent upward on the outer side in the horizontal direction of the grill 40 to form an upright mounting plate 40f, and fixed to the surface of the mounting plate 40f facing outward in the lateral direction. A rail 48 is attached.

  An intermediate rail 48a is engaged with the fixed rail 48 so as to be movable in the front-rear direction via a ball 48b. A movable rail 49 is engaged with the intermediate rail 48a via a ball 48c so as to be movable in the front-rear direction. ing. Therefore, the movable rail 49 is supported by the fixed rail 48 through the intermediate rail 48a so as to be movable in the front-rear direction.

  The pair of movable rails 49, 49 on both outer sides in the horizontal direction of the grill cabinet 40 are connected at the front end thereof via a rail connection frame 49a. A front end portion of the dish support frame 45 is locked to the rail connection frame 49a, and the grill door 42 is detachably connected to the rail connection frame 49a. Thus, by placing a finger on the handle 42a at the lower front of the grill door 42 and pulling it forward or pushing it backward, the movable rail 49 is guided by the fixed rail 48 to move back and forth, and the tray support frame 45 is also linked to this. By moving back and forth, the grill pan 44 supported by the pan support frame 45 is smoothly put in and out of the grill cabinet 40.

  The dish support frame 45 includes a frame body 45a formed by bending a rod in a substantially square shape in plan view, a front support plate 45b attached to the front end part of the frame body 45a and supporting the front end part of the grill dish 44, The rear support plate 45c is attached to the rear end portion of the frame 45a and supports the rear end portion of the grill pan 44. In addition, a plurality of front and rear support portions 40g that slidably support the left and right side portions of the frame 45a are formed on the bottom wall portion of the grill 40.

  By the way, if the burners 46 and 47 are continuously burned for a long time, the broth dripped from the object to be cooked and accumulated in the grill pan 44 may abnormally overheat and ignite. In order to prevent a flame generated by ignition from overflowing from the exhaust duct 41 to the outside, it is necessary to provide a frame trap in the exhaust duct 41.

  In this embodiment, as shown in FIGS. 2 to 4, two pipes 411 traversing the exhaust duct 41 are provided in the exhaust duct 41 with an interval in a direction orthogonal to the flow direction of the exhaust gas. The pipe 411 constitutes a frame trap. Both end portions of each pipe 411 pass through side plate portions on both sides of the exhaust duct 41 in the lateral direction. Both ends of each pipe 411 are open to the atmosphere outside the exhaust duct 41. Therefore, air flows inside each pipe 411.

  According to this, even if a flame generated by ignition in the grill 40 enters the exhaust duct 41, the flame is cooled and extinguished by contacting the outer surface of the pipe 411, and the flame is discharged from the exhaust duct 41. It can prevent overflowing to the outside. And even if the burners 46 and 47 continue to burn for a long time, the pipe 411 is maintained at a relatively low temperature by the air flowing inside. Therefore, the flame extinguishing function is reliably exhibited.

  Further, since the exhaust gas flows smoothly so as to lick the outer surface of the pipe 411, the exhaust resistance does not increase so much. Here, when the exhaust resistance is increased, the inflow of air from the air hole 40d is suppressed, and the combustion gas generated by the combustion of the lower fire burner 47 is less likely to reach the lateral center in the grill 40, The temperature distribution in the lower part of the grill 40 is deteriorated. And the to-be-cooked object put on the horizontal direction both sides of the grill net 43 will be baked excessively, and the to-be-cooked object put on the center part will be in a raw-burning state. On the other hand, in this embodiment, since the increase in exhaust resistance can be suppressed as described above, the temperature distribution in the lower part of the grill 40 is improved, and the food to be cooked on any part of the grill 43 is baked well. be able to.

  In the first embodiment, the pipe 411 is formed in a circular cross section. However, it is also possible to use a pipe having an elliptical cross section in which the flow direction of the exhaust gas in the exhaust duct 41 is the major axis direction.

  Moreover, in the said embodiment, although the pipe 411 is arrange | positioned horizontally, you may arrange | position the pipe 411 in the attitude | position inclined in the up-down direction like 2nd Embodiment shown in FIG. According to this, the heated air in the pipe 411 is discharged from the upper end portion of the pipe 411, and cold air flows into the pipe 411 from the lower end portion. Therefore, the replacement of air in the pipe 411 is promoted, and the pipe 411 is efficiently cooled.

  In the above embodiment, the two pipes 411 are provided in the exhaust duct 41. However, the number of the pipes 411 is appropriately set according to the cross-sectional area of the exhaust duct 41 and the thickness of the pipe 411. And it is not limited to two. Moreover, you may coat the catalyst which accelerates | stimulates decomposition | disassembly of odor, smoke, etc. on the outer surface of the pipe 411.

  As mentioned above, although embodiment which applied this invention to the grill incorporated in a drop-in type stove was described, this invention is similarly applied to the grill built in a tabletop type stove, and also the grill provided independently without being incorporated in a stove. it can. Moreover, although the said embodiment is a double-sided grill, it can apply this invention similarly to the single-sided grill which does not comprise the lower fire burner 47. FIG.

The perspective view of the stove which comprises this invention grill. The perspective view of the grill of a 1st embodiment of the present invention. The cutting front view of the grill of a 1st embodiment. The cutting side view of the grill of a 1st embodiment. The typical cutting front view of the exhaust duct part of the grill of a 2nd embodiment .

Explanation of symbols

  4 ... Grill, 40 ... Grill warehouse, 41 ... Exhaust duct, 411 ... Pipe, 412 ... Fan, 414 ... Pump, 46, 47 ... Burner.

Claims (1)

Grill box, a burner for heating the foods housed in the grill box, and communicates with the grill chamber, a grill and an exhaust duct for exhausting the exhaust gas, generated by fire in the grill box In the case where a flame trap that prevents a flame from overflowing from the exhaust duct is provided in the exhaust duct,
In the exhaust duct, a pipe is provided across the exhaust duct through which air enters and exits from both ends opened to the atmosphere outside the exhaust duct. The pipe forms a frame trap , and the exhaust gas is supplied to the pipe. The grill is characterized in that it flows smoothly so as to lick the outer surface of the pipe, and the flame is cooled and extinguished by contacting the outer surface of the pipe .

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