JP7576840B2 - grill - Google Patents

Description

The present invention relates to a grill.

Conventionally, a grill is known that includes a grill chamber that contains food, a grill burner that heats the food in the grill chamber, an exhaust pipe that guides oily smoke and odorous components generated by the food from an exhaust opening at the back of the grill chamber to the top of the grill body, and an afterburner that is disposed in the exhaust duct and heats and burns off the oily smoke and odorous components (see, for example, Patent Document 1). A burner support plate that extends from the bottom wall of the grill chamber to the top rear in an approximately inverted L shape is provided at the back of the grill chamber, and the exhaust pipe extends diagonally rearward and upward from the rear of the burner support plate. The burner support plate includes an upright wall that extends upward from the bottom wall of the grill chamber and an inclined wall that extends diagonally rearward and upward from the upper end of the upright wall, and an afterburner is provided at approximately the center of the inclined wall. An opening is provided at approximately the center of the inclined wall, and the afterburner is fixed to the lower surface of the inclined wall. The flame port surface of the afterburner is exposed to the inside of the exhaust pipe through the opening.

Patent No. 5281985

In order to more reliably heat the exhaust gas flowing through the exhaust pipe, it is possible to install an afterburner inside the exhaust pipe. For this reason, there is a need to develop a grill that allows the afterburner to be easily and stably installed inside the exhaust pipe.

The object of the present invention is to provide a grill that allows an afterburner to be easily and stably installed inside an exhaust duct.

The grill of claim 1 comprises a grill chamber for storing food, a grill burner provided within the grill chamber for heating the food, an exhaust duct fixed to the rear of the grill chamber, extending upward from the rear, and directing the exhaust gas from the inside of the grill chamber upward, an afterburner provided at the bottom of the exhaust duct, with a flame port facing upward, and heating and reducing the oil smoke and odor components contained in the exhaust gas by a flame formed at the flame port, and a support portion for supporting the afterburner at the bottom of the exhaust duct, wherein the exhaust duct is formed in a box shape with an opening at the bottom, and is provided with a grill exhaust port in the upper wall portion for discharging the exhaust gas to the outside, and is provided with an exhaust opening in the front wall portion opposite the rear of the grill chamber, and the opening at the bottom is provided with a grill exhaust port in the upper wall portion for discharging the exhaust gas to the outside, and is provided with an exhaust opening in the front wall portion opposite the rear of the grill chamber, and the opening at the bottom is provided with a grill exhaust port in the upper wall portion for discharging the exhaust gas to the outside, and the grill burner is provided with an exhaust opening in the front wall portion opposite the rear of the grill chamber, and the opening at the bottom is provided with a grill exhaust port in the upper wall portion for discharging the exhaust gas to the outside, and the grill burner is provided with an exhaust opening in the front wall portion opposite the rear of the grill chamber, and the grill burner is provided with a grill burner ... The duct body is fixed to the bottom member from above toward the grill chamber, and the bottom member has a pair of fixing parts provided on both sides in the left-right direction, and a sloped surface that slopes downward from the rear side to the front side at the center sandwiched between the pair of fixing parts and is arranged toward the inside of the grill chamber through the exhaust opening. The support part has a plate-like first cover part that extends in the left-right direction and is fixed to the upper surface of the afterburner, and has a first opening into which the flame port provided on the upper surface is inserted from below, and a pair of fixing ends that are provided on both the left and right sides of the first cover part and are fixed from above to the pair of fixing parts. A predetermined gap is formed between the afterburner fixed to the first cover part and the sloped surface, allowing the broth that has entered the exhaust duct from the grill exhaust port to pass along the sloped surface toward the grill chamber side.

The support part of the grill of claim 2 may further include a second cover part that is plate-shaped extending in the left-right direction and fixed to the upper surface of the first cover part, and has a second opening that exposes the flame port part at a position corresponding to the first opening provided on the upper surface, and an electrode support member that is fixed to the upper surface of the second cover part and supports the igniter electrode toward the second opening.

The grill of claim 3 includes a sensor support member fixed to the upper surface of the second cover portion and supporting a sensor for detecting misfire toward the second opening, and on the upper surface of the second cover portion, the electrode support member is provided on one of the left and right sides of the second opening, and the sensor support member is provided on the other side of the second opening opposite the one side, and the electrode support member and the sensor support member may each include an abutment portion that abuts against the inner surface of each of the right wall portion and the left wall portion of the duct body.

According to the grill of claim 1, the afterburner is applied from the underside of the first cover part and the flame port part is inserted into the first opening, and then a pair of fixed ends of the first cover part are fixed to a pair of left and right fixing parts of the bottom member. This allows the afterburner to be easily and stably fixed to the bottom part inside the exhaust duct. In addition, since the afterburner can be supported above the inclined surface of the bottom member 40, a predetermined gap can be formed between the afterburner and the inclined surface to allow the broth to pass through.

According to the grill of claim 2, the afterburner and the igniter electrode can be assembled by fixing the second cover, to which the electrode support member that supports the igniter electrode is fixed, to the upper surface of the first cover, thereby improving the assembly of the grill as a whole.

According to the grill of claim 3, the sensor support member that supports the sensor is fixed to the second cover, and by fixing it to the top surface of the first cover, the afterburner, the igniter electrode, and the sensor can be assembled, further improving the ease of assembly of the grill as a whole. In addition, the contact portions of the electrode support member and the sensor support member are adapted to contact the inner surfaces of the right and left walls of the duct body, respectively, making it easier to position the duct body when attaching or detaching it from the bottom member, and improving maintainability. In addition, the duct body is supported from the inside by a pair of left and right contact portions, improving the rigidity of the entire exhaust duct.

FIG. 1 is a perspective view of a grill device 1. FIG. 1 is a cross-sectional perspective view of a grill device 1. FIG. 3 is an enlarged view of a W1 region shown in FIG. 2 . FIG. 2 is a cross-sectional view of the rear side of the grill device 1. FIG. FIG. FIG. 2 is a perspective view of an afterburner unit 5. 2 is a perspective view of the exhaust duct 4 with the front side of the duct body 30 broken away. FIG.

The following describes an embodiment of the present invention. Unless otherwise specified, the device configurations described below are not intended to be limiting and are merely illustrative examples. The drawings are used to explain the technical features that may be adopted by the present invention.

The configuration of the grill device 1 will be described with reference to Figures 1 to 4. The grill device 1 is attached inside the housing of a stove (not shown). As shown in Figures 1 and 2, the grill device 1 includes a grill chamber 2, a grill door 3, an exhaust duct 4, etc.

The grill chamber 2 is formed in a substantially rectangular box shape, and includes an upper wall 11, a right wall 12, a left wall 13 (see FIG. 2), and a bottom wall 14. A grill opening (not shown) that is rectangular in front view is provided on the front side of the grill chamber 2. An upper burner 21 is provided on the upper wall 11. The upper burner 21 forms a flame toward the inside of the grill chamber 2. A right flame port (not shown) of the lower burner 22 is provided approximately in the middle of the inner surface of the right wall 12. A left flame port 24 of the lower burner 22 is provided approximately in the middle of the inner surface of the left wall 13. The right flame port and the left flame port 24 extend in the front-rear direction and face each other at the same height. The right flame port and the left flame port 24 form a flame toward the inside of the grill chamber 2. A gas inlet 221 of the lower burner 22 is provided in the right rear part of the grill chamber 2.

The grill door 3 is provided at the front of the grill chamber 2 and opens and closes the grill opening. A support frame 16 (see FIG. 2) is fixed to the lower back surface of the grill door 3. The support frame 16 detachably supports a grill net (not shown) and a tray 17. The support frame 16 is supported so that it can move in the front-rear direction by a rail mechanism (not shown) provided on both the left and right sides of the upper surface of the bottom wall portion 14 of the grill chamber 2. Therefore, the grill door 3 can be pulled out toward the front together with the support frame 16, and the grill net and tray 17 can be removed from the grill chamber 2 at the same time.

A duct support 10 (see Figures 1 and 4) is provided at the rear of the grill chamber 2. The duct support 10 has a pair of extensions 10A, 10B. The extension 10A extends rearward from approximately the middle in the vertical direction of the rear end of the right wall 12 (see Figure 1). The extension 10B extends rearward from approximately the middle in the vertical direction of the rear end of the left wall 13 (see Figure 4). A bottom member 40 of the exhaust duct 4 (described below) is fixed to the pair of extensions 10A, 10B. In this way, the duct support 10 supports the exhaust duct 4 from below.

The exhaust duct 4 is provided at the rear of the grill chamber 2. The exhaust duct 4 is formed in a generally rectangular tube shape that extends from the rear of the grill chamber 2 at an angle rearward and upward. The inside of the exhaust duct 4 communicates with the inside of the grill chamber 2 via an exhaust opening 38 (see Figures 3 and 4) located at the front of the exhaust duct 4, which will be described later. A grill exhaust port 39 is provided at the top of the exhaust duct 4. The grill exhaust port 39 opens upward and is formed in a generally rectangular shape that is long in the left-right direction in a plan view. The combustion exhaust from inside the grill chamber 2 flows upward inside the exhaust duct 4 and is discharged to the outside from the grill exhaust port 39. The specific structure of the exhaust duct 4 will be described later.

As shown in Figures 2 to 4, an afterburner unit 5 is provided in the lower part of exhaust duct 4, upstream of the direction in which the exhaust gas flows. The afterburner unit 5 includes an afterburner 50. The flame port surface 55 of the afterburner 50 is inclined obliquely upward from the front to the rear at the lower part of exhaust duct 4, and is disposed so as to follow the flow of the exhaust gas. The afterburner 50 heats and reduces oily smoke and odorous components generated from ingredients contained in the exhaust gas. The specific structure of the afterburner unit 5 will be described later.

A broth passage 200 is provided below the center of the afterburner unit 5. The broth passage 200 guides the broth that enters through the grill exhaust port 39 and flows down the rear side of the exhaust duct 4 through the underside of the afterburner unit 5 and into the grill chamber 2. The configuration and function of the broth passage 200 will be described later.

In the exhaust duct 4, a straightening plate 57 is provided downstream of the afterburner 50. The straightening plate 57 is a metal plate with a generally rectangular shape that is long in the left-right direction when viewed from above. The straightening plate 57 is provided rearward and inclined upward from near the rear end of the flame port surface 55. The straightening plate 57 guides the combustion exhaust passing over the flame port surface 55 toward the flame trap 110, which is located above and will be described later. This allows the exhaust duct 4 to smoothly flow the combustion exhaust that has been flame-reduced and deodorized by the afterburner 50 toward the flame trap 110.

In the exhaust duct 4, downstream of the afterburner unit 5 and approximately in the middle of the height of the exhaust duct 4, a flame trap 110 is installed. The flame trap 110 is a flame quenching member, and is formed by bending both ends of two perforated plates such as a lath mesh made of stainless steel or the like and vertically facing each other to form a rectangular tubular shape. The flame trap 110 is inclined so that the rear end is lower than the front end, and is installed so as to face the direction in which the combustion exhaust flows. The combustion exhaust passes through the mesh of the flame trap 110 and is discharged to the outside from the grill exhaust port 39.

In the exhaust duct 4, a guide plate 58 is provided on the upper side between the baffle plate 57 and the flame trap 110. The guide plate 58 is inclined diagonally upward from the front end to the rear end, and its rear end is located at the front end of the flame trap 110. The guide plate 58 guides the combustion exhaust air flowing from inside the grill chamber 2 along the upper side of the exhaust duct 4 toward the flame trap 110.

The structure of the exhaust duct 4 will be described in detail with reference to Figures 5 and 6. The exhaust duct 4 comprises a duct body 30 and a bottom member 40, which are assembled together in the vertical direction to form a roughly rectangular tube shape. The combustion exhaust flows into the exhaust duct 4 from an exhaust opening 38 provided at the front side of the exhaust duct 4, flows diagonally upward along the inside of the exhaust duct 4, and is discharged to the outside from a grill exhaust port 39 provided at the rear upper part of the exhaust duct 4.

As shown in FIG. 6, the duct body 30 is formed in a box shape with an open bottom side, and includes a front wall portion 31, an upper wall portion 32, a right wall portion 33, a left wall portion 34, a rear wall portion 35, a forward protrusion portion 36, and a partition wall 37. The front wall portion 31 is formed in a generally inverted U shape when viewed from the front. The upper wall portion 32 extends from the upper end portion of the front wall portion 31 at an angle obliquely upward toward the rear side, and is formed in a generally rectangular shape that is long in the left-right direction when viewed from above. The upper end portion of the upper wall portion 32 is bent upward.

The rear wall portion 35 extends from the lower end to the upper end while sloping backward, and is formed in a generally rectangular shape that is long in the left-right direction when viewed from the rear (see FIG. 4). The upper end of the rear wall portion 35 is bent upward. The combustion exhaust passage formed between the upper wall portion 32 and the rear wall portion 35 is formed in a tapered shape that narrows in width in the front-to-rear direction from the bottom to the top.

The right wall portion 33 is provided so as to close the gap between the right ends of the front wall portion 31, the upper wall portion 32, and the rear wall portion 35 from the right side. The right wall portion 33 is formed in a tapered shape in which the width in the front-to-rear direction narrows as it moves upward when viewed from the right side. A right fixing portion 331 that protrudes to the right side is provided at the rear corner on the lower side of the right wall portion 33. A fixing hole 332 is provided in the center of the right fixing portion 331. A recess 335 that is formed in an arc shape facing upward is provided at the lower end of the right wall portion 33. A gas inlet portion 52 of the afterburner 50, which will be described later, is located inside the recess 335.

The left wall 34 is provided so as to close the gap between the left ends of the front wall 31, the upper wall 32, and the rear wall 35 from the left side. The left wall 34 is formed in a tapered shape in which the width in the front-to-rear direction narrows as it moves upward when viewed from the left side. A left fixing part (not shown) that protrudes to the left side is also provided at the lower rear corner of the left wall 34. A fixing hole (not shown) is provided in the center of the left fixing part. A rectangular grill exhaust port 39 is formed inside the area surrounded by the upper end of the upper wall 32, the upper end of the rear wall 35, the upper end of the right wall 33, and the upper end of the left wall 34.

The forward protrusion 36 protrudes forward from the lower end of the front wall 31, which is generally inverted U-shaped when viewed from the front, and is generally semi-cylindrical with the lower half cut off. The partition wall 37 is provided along the front end of the forward protrusion 36, and is generally inverted U-shaped when viewed from the front. The partition wall 37 is a wall that separates the interior of the grill chamber 2 from the interior of the exhaust duct 4. An exhaust opening 38 is formed inside the lower end of the generally inverted U-shaped partition wall 37. The exhaust opening 38 is generally rectangular and elongated in the left-right direction when viewed from the front.

The bottom member 40 is formed in a generally rectangular shape that is long in the left-right direction in a plan view, and is fixed to the bottom of the open portion of the duct body 30 so as to close it from below. The bottom member 40 includes a bottom surface portion 41, a right fixing portion 42, a left fixing portion 43, and a hanging portion 49, and forms the lower portion of the exhaust duct 4. The bottom surface portion 41 is provided in the center of the bottom member 40 in the left-right direction. The bottom surface portion 41 includes a central inclined surface 411, a right inclined surface 412, and a left inclined surface 413. The central inclined surface 411 is provided in the center of the bottom surface portion 41 in the left-right direction, and is inclined obliquely upward from the front end side to the rear end side. The right inclined surface 412 is inclined obliquely upward to the right from the right end of the central inclined surface 411. The left inclined surface 413 is inclined obliquely upward to the left from the left end of the central inclined surface 411.

An opening (not shown) is provided in the center of the central inclined surface 411, and the sensor fixing base 44 is fixed so as to cover the opening. The sensor fixing base 44 is formed in a roughly triangular box shape in a side view, and has a fixing surface 45 on the front side. A sensor support member 81 is fixed to the fixing surface 45 from the front with a screw 82. The sensor support member 81 supports a rod-shaped temperature sensor 80 facing forward. The temperature sensor 80 has a detection unit at its front end and detects the ambient temperature inside the grill chamber 2. An insertion hole (not shown) is provided in the center of the fixing surface 45. The rear end side of the temperature sensor 80 is inserted rearward into the insertion hole (see FIG. 4). The wiring 801 connected to the rear end of the temperature sensor 80 is drawn to the rear of the bottom member 40 through the inside of the sensor fixing base 44 and the opening of the central inclined surface 411. In addition, a broth removal section 46 is provided behind the sensor fixing base 44 on the upper surface of the central inclined surface 411. The broth removal section 46 is formed in a roughly V-shape in plan view and protrudes upward like a rib. The sensor fixing base 44 is positioned inside the V-shape of the broth removal section 46.

The right fixing part 42 extends to the right from the right end of the bottom part 41 and is formed in a generally rectangular shape that is long in the front-rear direction in plan view. A fixing hole 421 is provided in the right rear corner of the right fixing part 42, and a fixing hole 422 is provided near the left end and forward of the center in the front-rear direction. A burner support part 423 is erected on the rear end side of the upper surface of the right fixing part 42. The upper end of the burner support part 423 is formed in an arc shape. The left fixing part 43 extends to the left from the left end of the bottom part 41 and is formed in a generally rectangular shape that is long in the front-rear direction in plan view. A fixing hole 431 is provided near the left end of the left fixing part 43 and in the center in the front-rear direction, and a fixing hole 432 is provided to the right of it. The right fixing part 42 and the left fixing part 43 are fixed to the extension parts 10A and 10B of the duct support part 10 with screws, respectively, to fix the bottom member 40 to the rear of the grill chamber 2.

The structure of the afterburner unit 5 will be described in detail with reference to Figures 6 and 7. As shown in Figure 6, the afterburner unit 5 includes, from the bottom up, an afterburner 50, a first cover 60, a second cover 70, an electrode support member 101, a sensor support member 201, an igniter electrode 27, and a misfire sensor 28.

The afterburner 50 includes an intake port 51, a gas inlet 52, a main body 53, and a flame port surface 55. The intake port 51 is formed in a generally cylindrical shape that opens to the right. The intake port 51 takes in gas and air inside. The gas inlet 52 is formed in a generally cylindrical shape that extends to the left from the intake port 51. The gas inlet 52 supplies the gas and air taken in from the intake port 51 toward the main body 53. The main body 53 is formed in a generally rectangular plate shape that is long in the left-right direction in a plan view. The upper surface of the main body 53 is an attachment surface for attaching the first cover 60 described below. On the upper surface of the main body 53, the flame port surface 55 is provided at a position shifted forward from the center line of the gas inlet 52. The flame port surface 55 includes a number of flame ports.

A gas passage (not shown) is provided on the underside of the main body 53, bulging downward. The gas passage mixes and diffuses the gas and air supplied from the gas inlet 52, and supplies them to each nozzle on the nozzle surface 55. A fixing hole 531 is provided on the right side of the nozzle surface 55 in the main body 53. A fixing hole 532 is provided on the rear side of the nozzle surface 55 and in the center in the left-right direction. A fixing hole 533 is provided on the left side of the nozzle surface 55.

The first cover 60 is formed in a generally rectangular frame shape that is long in the left-right direction in a plan view. The first cover 60 includes a frame portion 61, an upper hanging portion 62, a step portion 63, a lower hanging portion 64, a right fixing portion 65, and a left fixing portion 66. The frame portion 61 is formed in a generally rectangular frame shape that is long in the left-right direction in a plan view, and a generally rectangular opening 69 that is long in the left-right direction in a plan view is provided in the center. The opening 69 has a size that allows the flame port surface 55 of the afterburner 50 to be placed inside. A fixing hole 611 is provided behind the opening 69 and to the right of the center in the left-right direction. A fixing hole 612 is provided to the right of the opening 69. A fixing hole 613 is provided to the left of the opening 69. A locking hole 67 is provided near the right front corner of the frame portion 61, and a locking hole 68 is provided near the left front corner of the frame portion 61.

The upper hanging portion 62 hangs down from the front end of the frame portion 61 and is formed in a generally rectangular shape that is long in the left-right direction when viewed from the front. An opening (not shown) is provided in the left-right center of the upper hanging portion 62. The tip of the temperature sensor 80 that protrudes forward from the fixing surface 45 of the sensor fixing base 44 of the bottom member 40 is inserted into the opening. The step portion 63 protrudes forward from the lower end of the upper hanging portion 62 and is formed in a generally rectangular shape that is long in the left-right direction when viewed from the top. A sensor placement portion 631 is provided in the left-right center of the step portion 63. The sensor placement portion 631 is a recess that is formed in a generally U-shape when viewed from the front, and its bottom surface is provided at a lower position than the step portion 63.

A box-shaped sensor cover 85 is placed in the sensor placement section 631. The sensor cover 85 covers the periphery of the tip of the temperature sensor 80 that protrudes forward from an opening (not shown) in the upper hanging section 62. A fixed section 86 extending leftward is provided on the left side of the sensor cover 85. The fixed section 86 is fixed from the front to the front surface of the upper hanging section 62 with a screw 87. As a result, the sensor cover 85 is fixed to the front surface of the upper hanging section 62 while placed in the sensor placement section 631. The lower hanging section 64 hangs downward from the front end of the step section 63 and is formed in a generally rectangular shape that is long in the left-right direction when viewed from the front.

The right fixing part 65 protrudes to the right from the rear of the right end of the frame part 61 and has a fixing hole 651 in its center. The left fixing part 66 protrudes to the left from the rear of the left end of the frame part 61 and has a fixing hole 661 in its center.

Like the first cover 60, the second cover 70 is formed in a generally rectangular frame shape that is long in the left-right direction when viewed from above. A generally rectangular opening 71 that is long in the left-right direction when viewed from above is provided in the center of the second cover 70. The opening 71 has a size similar to that of the opening 69 of the first cover 60. A fixing hole 72 is provided on the right side of the opening 71. A fixing hole 73 is provided on the left side of the opening 71. A round hole 74 is provided on the rear side of the opening 71. A locking hole 77 is provided near the right front corner of the second cover 70, and a locking hole 78 is provided near the left front corner.

The electrode support member 101 is formed in a generally U-shape with the open side facing downward when viewed from the front, and includes an upper surface portion 102, a right surface portion 103, a left surface portion 104, a fixing portion 105, and an extension portion 106. The upper surface portion 102 extends in the front-rear direction, and the igniter electrode 27 is fixed to its upper surface with its tip side facing leftward. The right surface portion 103 hangs down from the right end of the upper surface portion 102. An arc portion 103A is provided at the lower end of the right surface portion 103. The arc portion 103A curves upward in a generally arc-like shape. The left surface portion 104 hangs down from the left end of the upper surface portion 102. A locking piece 107 is provided on the front side of the lower end of the left surface portion 104, protruding downward. The fixing portion 105 protrudes leftward from the lower end of the left surface portion 104, and is formed in a generally rectangular shape when viewed from above. A fixing hole 108 is provided on the front end side of the fixed portion 105. The extension portion 106 extends leftward from the rear side of the left end portion of the fixed portion 105. An electrode opposing portion 109 protrudes forward from the left end portion of the extension portion 106. The electrode opposing portion 109 faces the tip end of the igniter electrode 27 across a predetermined gap. The electrode support member 101 configured as described above supports the igniter electrode 27.

Similar to the electrode support member 101, the sensor support member 201 is formed in a generally U-shape with the opening facing downward when viewed from the front, and includes an upper surface 202, a right surface 203, a left surface 204, and a fixing portion 205. The upper surface 202 extends in the front-rear direction, and the misfire sensor 28 is fixed to its upper surface with its tip facing rightward. The right surface 203 hangs down from the right end of the upper surface 202. The fixing portion 205 protrudes rightward from the lower end of the right surface 203, and is formed in a generally rectangular shape when viewed from above. A locking piece 207 is provided on the left side of the front end of the fixing portion 205, protruding downward. A fixing hole 208 is provided on the front end side of the fixing portion 205. The left surface 204 hangs down from the left end of the upper surface 202. The sensor support member 201 configured as described above supports the misfire sensor 28.

With reference to FIG. 6, an example of a method for assembling the afterburner unit 5 will be described. The assembly worker places the afterburner 50 with the flame port surface 55 facing upward. The first cover 60 is positioned and placed relative to the upper surface of the afterburner 50. At this time, the flame port surface 55 is placed inside the opening 69 of the first cover 60. Then, the screw 99 is inserted into the fixing hole 611 of the first cover 60 and the fixing hole 532 of the afterburner 50, and fixed with a nut (not shown) from the opposite side. This fixes the first cover 60 to the upper surface of the afterburner 50. Next, the second cover 70 is positioned and placed relative to the upper surface of the first cover 60. At this time, the flame port surface 55 is placed inside the opening 71 of the second cover 70 through the opening 69 of the first cover 60. Furthermore, the head of the screw 99 fastened to the upper surface of the first cover 60 is placed inside the round hole 74 of the second cover 70 (see FIG. 7). The locking holes 77 and 78 are located directly above the locking holes 67 and 68 of the first cover 60.

Then, the electrode support member 101 is placed on the right side of the upper surface of the second cover 70. At this time, the locking piece 107 of the electrode support member 101 is inserted from above into the locking hole 77 on the right side of the second cover 70. The locking piece 107 is inserted up to the locking hole 67 on the right side of the first cover 60. Furthermore, the fixing hole 108 is placed directly above the fixing hole 73 of the second cover 70. This positions the electrode support member 101 on the right side of the upper surface of the second cover 70. The tip of the igniter electrode 27 and the electrode opposing portion 109 are placed on the flame mouth surface 55 side.

Next, the sensor support member 201 is positioned and placed on the left side of the top surface of the second cover 70. At this time, the locking piece 207 of the sensor support member 201 is inserted from above into the locking hole 78 on the left side of the second cover 70. The locking piece 207 is inserted up to the locking hole 68 on the left side of the first cover 60. Furthermore, the fixing hole 208 is positioned directly above the fixing hole 73 of the second cover 70. This positions the sensor support member 201 on the right side of the top surface of the second cover 70. The tip of the misfire sensor 28 is positioned on the flame mouth surface 55 side.

Finally, with the first cover 60, the second cover 70, the electrode support member 101, and the sensor support member 201 stacked on the upper surface of the afterburner 50, the screw 93 is inserted into the fixing hole 108 of the electrode support member 101, the fixing hole 72 of the second cover 70, the fixing hole 612 of the first cover 60, and the fixing hole 531 of the afterburner 50, and fixed with a nut (not shown) from the opposite side. Then, the screw 94 is inserted into the fixing hole 208 of the sensor support member 201, the fixing hole 73 of the second cover 70, the fixing hole 613 of the first cover 60, and the fixing hole 533 of the afterburner 50, and fixed with a nut (not shown) from the opposite side. The arc portion 103A of the right surface portion 103 of the electrode support member 101 is arranged along the outer peripheral surface of the gas inlet portion 52 of the afterburner 50. As a result, the afterburner unit 5 is assembled as a whole, as shown in FIG. 7.

In this way, the grill device 1 of this embodiment can assemble the afterburner 50, the igniter electrode 27, and the misfire sensor 28 by fixing the first cover 60, the second cover 70, the electrode support member 101, and the sensor support member 201 to the afterburner 50 to form a single afterburner unit 5. This improves the ease of assembly of the grill device 1 as a whole.

6 and 7, an example of a method of assembling the afterburner unit 5 into the exhaust duct 4 will be described. The afterburner unit 5 shown in FIG. 7 is placed from above on the bottom member 40 shown in FIG. 6. At this time, the intake port 51 of the afterburner 50 is placed at the upper end of the arc-shaped burner support part 423 provided on the right fixing part 42. Furthermore, the right fixing part 65 and the left fixing part 66 of the first cover 60 are positioned and placed on the right fixing part 42 and the left fixing part 43 of the bottom member 40, respectively. At this time, with the afterburner unit 5 positioned on the bottom member 40, the screw 95 is inserted into the fixing hole 651 of the right fixing part 65 of the first cover 60 and the fixing hole 422 of the right fixing part 42 of the bottom member 40, and fixed from the opposite side with a nut (not shown). The screw 96 is inserted into the fixing hole 661 of the left fixing part 66 of the first cover 60 and the fixing hole 432 of the left fixing part 43 of the bottom member 40, and then fixed with a nut (not shown) from the opposite side. This fixes the afterburner unit 5 so that it spans between the right fixing part 42 and the left fixing part 43 of the bottom member 40. Since both left and right ends of the afterburner unit 5, which is long in the left-right direction, are fixed to the right fixing part 42 and the left fixing part 43, the afterburner unit 5 is stably supported by the bottom member 40.

Between the underside of the afterburner unit 5 and the central inclined surface 411 of the bottom surface portion 41 of the bottom member 40, a predetermined gap is formed as the broth passage 200, so that the afterburner unit 5 can be stably supported within the exhaust duct 4 and the broth passage 200 can be easily formed.

Next, the duct body 30 is placed over the bottom member 40 to which the afterburner unit 5 is fixed. Here, the distance between the right surface of the right surface portion 103 of the electrode support member 101 of the afterburner unit 5 and the left surface of the left surface portion 204 of the sensor support member 201 is approximately the same as the distance between the inner surface (left surface) of the right wall portion 33 of the duct body 30 and the inner surface (right surface) of the left wall portion 34. Therefore, the worker moves downward so that the inner surface of the right wall portion 33 of the duct body 30 and the inner surface of the left wall portion 34 are aligned with the right surface of the right surface portion 103 of the electrode support member 101 and the left surface of the left surface portion 204 of the sensor support member 201. As a result, the duct body 30 is automatically guided toward the specified position of the bottom member 40. The right fixing part 331 and the left fixing part (not shown) of the duct body 30 are precisely positioned to the right fixing part 42 and the left fixing part 43 of the bottom member 40. At this time, the recess 335 of the right wall part 33 of the duct body 30 is positioned relative to the outer peripheral surface of the gas inlet part 52 of the afterburner 50.

With the duct body 30 positioned on the bottom member 40, a screw 91 is inserted into the fixing hole 332 of the right fixing part 331 of the duct body 30 and the fixing hole 421 of the right fixing part 42 of the bottom member 40, and fixed with a nut (not shown) from the opposite side. A screw 92 is inserted into the fixing hole (not shown) of the left fixing part of the duct body 30 and the fixing hole 431 of the left fixing part 43 of the bottom member 40, and fixed with a nut (not shown) from the opposite side. In this way, the duct body 30 is fixed to the bottom member 40, and the exhaust duct 4 is formed with the afterburner unit 5 assembled inside.

As shown in FIG. 8, the inner surface (left surface) of the right wall portion 33 of the duct body 30 contacts the right surface of the right surface portion 103 of the electrode support member 101, and the inner surface (right surface) of the left wall portion 34 also contacts the left surface of the left surface portion 204 of the sensor support member 201. As a result, the duct body 30 is stably supported from the inside by the electrode support member 101 and the sensor support member 201, improving the rigidity of the entire exhaust duct 4.

The structure and function of the broth passage 200 will be described with reference to FIG. 4. Between the underside of the afterburner 50 and the central inclined surface 411 (see FIG. 6) of the bottom surface portion 41, a gap is provided that is spaced apart in the vertical direction. Furthermore, between the front surface of the hanging portion 49 of the bottom member 40 of the exhaust duct 4 and the back surface of the lower hanging portion 64 of the first cover 60 of the afterburner unit 5, a gap is provided that is spaced apart in the front-rear direction. These gaps communicate with each other to form the broth passage 200. The outlet 210 of the broth passage 200 is formed between the lower end of the hanging portion 49 and the lower end of the lower hanging portion 64, and opens downward. The outlet 210 is located at the rear of the grill chamber 2 and below the left flame port 24 of the lower burner 22.

In such an exhaust duct 4, the broth that enters the exhaust duct 4 from the grill exhaust port 39 and flows down the back wall portion 35 flows along the broth passage 200. Then, at the central inclined surface 411 (see FIG. 6), the broth is guided to both sides by the broth guide portion 46 so as to avoid the sensor fixing base 44, and flows down as it is. This prevents the broth from splashing on the temperature sensor 80 fixed to the sensor fixing base 44. In this way, by the broth flowing along the broth passage 200, the grill device 1 can flow the broth into the grill chamber 2 without contacting the flame port surface 55 of the afterburner 50. This improves the durability of the flame port surface 55 of the afterburner 50 against clogging and corrosion. Furthermore, the outlet 210 of the broth passage 200 is lower than the height of the right and left flame ports 24 of the lower burner 22, so the broth that flows down from the outlet 210 can be prevented from adhering to the right and left flame ports 24 of the lower burner 22.

In addition, the outlet 210 is located above the rear of the tray 17 housed inside the grill chamber 2. This allows the grill device 1 to receive the broth that falls from the outlet 210 in the tray 17. This prevents the bottom wall portion 14 of the grill chamber 2 from becoming dirty with the broth. In addition, the user can collect the broth that has fallen into the tray 17 simply by removing the tray 17 from inside the grill chamber 2, eliminating the need to clean the inside of the grill chamber 2.

In the above description, the grill device 1 is an example of a "grill" of the present invention. The right surface 103 of the electrode support member 101 and the left surface 204 of the sensor support member 201 are an example of an "abutment portion" of the present invention. The opening 69 of the first cover 60 is an example of a "first opening" of the present invention. The opening 71 of the second cover 70 is an example of a "second opening" of the present invention. The central inclined surface 411 of the bottom member 40 is an example of an "inclined surface" of the present invention. The right fixing portion 65 and the left fixing portion 66 of the first cover 60 are an example of a "pair of fixed ends" of the present invention.

As described above, the grill device 1 of this embodiment includes the grill chamber 2, the upper burner 21, the lower burner 22, the exhaust duct 4, and the afterburner 50. The upper burner 21 and the lower burner 22 are provided in the grill chamber 2. The exhaust duct 4 extends upward from the rear of the grill chamber 2 and guides the combustion exhaust gas generated from the ingredients upward. The afterburner 50 is arranged on the bottom side of the exhaust duct 4 with the flame port surface 55 facing upward. A duct support part 10 is provided at the rear of the grill chamber 2. The exhaust duct 4 includes a bottom member 40 and a duct body 30. The bottom member 40 is supported by the duct support part 10 and forms the bottom of the exhaust duct 4. The duct body 30 is formed in a box shape with an opening at the bottom surface, and includes a grill exhaust port 39 in the upper wall part 32. An exhaust opening 38 is provided in the front wall part 31 of the duct body 30. The front wall 31 is disposed opposite the rear of the grill chamber 2. The exhaust opening 38 communicates with the interior of the grill chamber 2. The duct body 30 is fixed from above to the bottom member 40 with the open bottom surface side facing downward.

The bottom member 40 has a right fixing part 42, a left fixing part 43, and a central inclined surface 411. The right fixing part 42 and the left fixing part 43 are provided on both the left and right sides of the bottom member 40. The central inclined surface 411 is inclined downward from the rear side to the front side in the central part sandwiched between the right fixing part 42 and the left fixing part 43, and is arranged toward the inside of the grill chamber 2 through the exhaust opening 38. The first cover 60 is fixed to the upper surface of the afterburner 50. The first cover 60 is a plate-like shape extending in the left-right direction and has an opening 69. The flame port surface 55 of the afterburner 50 is inserted from below into the opening 69. The right fixing part 65 and the left fixing part 66 of the first cover 60 fixed to the afterburner 50 are fixed from above to the right fixing part 42 and the left fixing part 43 of the bottom member 40. This makes it possible to easily fix the afterburner 50 to the bottom inside the exhaust duct 4.

A broth passage 200 is formed between the afterburner 50 and the central inclined surface 411. The broth passage 200 is a predetermined gap that allows the broth that has entered the exhaust duct 4 from the grill exhaust port 39 to pass along the central inclined surface 411 to the grill chamber 2 side. This allows the grill device 1 to prevent the broth from adhering to the flame port surface 55 through the opening 69 of the first cover 60.

The present invention is not limited to the above embodiment, and various modifications are possible. The grill device 1 in the above embodiment is installed inside the stove housing, but it may be a standalone grill device. The grill device 1 is equipped with an upper burner 21 and a lower burner 22 as the "grill burner" of the present invention, but it may be equipped with only one of the upper burner 21 and the lower burner 22. The baffle plate 57 and the flame trap 110 may be omitted in the exhaust duct 4.

In the above embodiment, the right fixing part 65 and the left fixing part 66 of the first cover 60 of the afterburner unit 5 are fixed to the right fixing part 42 and the left fixing part 43 of the bottom member 40, but for example, a right fixing part and a left fixing part may be provided at both the left and right ends of the afterburner 50 and fixed to the right fixing part 42 and the left fixing part 43 of the bottom member 40. Also, a right fixing part and a left fixing part may be provided at both the left and right ends of the second cover 70 and fixed to the right fixing part 42 and the left fixing part 43 of the bottom member 40.

In the above embodiment, the afterburner unit 5 assembles the afterburner 50, the igniter electrode 27, and the misfire sensor 28, but the igniter electrode 27 and the misfire sensor 28 may be separate and fixed to the afterburner 50 in sequence.

1 Grill device 2 Grill chamber 4 Exhaust duct 10 Duct support portion 21 Upper burner 22 Lower burner 27 Igniter electrode 28 Misfire sensor 30 Duct body 31 Front plate portion 32 Upper plate portion 33 Right plate portion 34 Left plate portion 38 Exhaust opening 39 Grill exhaust port 40 Bottom member 41 Bottom surface portion 42 Right fixing portion 43 Left fixing portion 50 Afterburner 55 Flame port surface 60 First cover 65 Right fixing portion 66 Left fixing portion 69 Opening 70 Second cover 71 Opening 101 Electrode support member 103 Right surface portion 200 Broth passage 201 Sensor support member 204 Left surface portion 411 Central inclined surface

Claims (3)

A grill chamber for storing food;
A grill burner provided in the grill chamber for heating the food;
An exhaust duct that is fixed to a rear part of the grill chamber, extends upward from the rear, and guides combustion exhaust gas from inside the grill chamber upward;
an afterburner provided at a bottom of the exhaust duct with a flame port facing upward and for heating and reducing oily smoke and odorous components contained in the combustion exhaust by a flame formed at the flame port;
a support portion for supporting the afterburner at the bottom inside the exhaust duct,
The exhaust duct is
a bottom member forming the bottom of the exhaust duct;
a duct body formed in a box shape with an opening at the bottom, with a grill exhaust port on an upper wall portion for discharging the combustion exhaust gas to the outside, with an exhaust opening on a front wall portion disposed opposite the rear portion of the grill chamber and communicating with the inside of the grill chamber, and fixed to the bottom member from above with the opening at the bottom portion facing downward;
The bottom member is
A pair of fixing parts provided on both sides in the left and right direction;
A sloping surface that slopes downward from the rear side to the front side at a central portion sandwiched between the pair of fixing parts and is disposed toward the inside of the grill chamber through the exhaust opening,
The support portion is
a first cover portion having a plate shape extending in the left-right direction, fixed to an upper surface of the afterburner, and including a first opening into which the flame port portion provided on the upper surface is inserted from below;
a pair of fixing ends provided on both left and right sides of the first cover portion and fixed to the pair of fixing portions from above;
A grill characterized in that a predetermined gap is formed between the afterburner fixed to the first cover portion and the inclined surface, allowing broth that has entered the exhaust duct from the grill exhaust port to pass along the inclined surface toward the grill chamber. The support portion is
A second cover part having a plate shape extending in the left-right direction and fixed to an upper surface of the first cover part, and having a second opening for exposing the flame port part at a position corresponding to the first opening provided on the upper surface;
2. The grill of claim 1, further comprising an electrode support member fixed to an upper surface of the second cover portion, the electrode support member supporting an igniter electrode facing the second opening. a sensor support member fixed to an upper surface of the second cover portion and supporting a sensor for detecting misfire toward the second opening,
On the upper surface of the second cover portion,
The electrode support member is provided on one of the left and right sides of the second opening,
the sensor support member is provided on the other side of the second opening, opposite to the one side;
3. The grill according to claim 2, wherein the electrode support member and the sensor support member each have an abutment portion that abuts against an inner surface of a right wall portion and a left wall portion of the duct body, respectively.

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