JP7573870B2 - grill - Google Patents

Description

The present invention relates to a grill.

Conventionally, a cooking device is known that is equipped with an exhaust section provided at the upper rear end side of the grill chamber to exhaust combustion gas generated within the grill chamber to the outside of the grill chamber, and a sensor provided at the rear of the grill chamber to detect the temperature within the grill chamber (see, for example, Patent Document 1).

On the other hand, there is also a known grill that includes a grill chamber that stores food, a grill burner that heats the food inside the grill chamber, an exhaust passage that directs the oily smoke and odorous components generated by the food from an exhaust opening at the back of the grill chamber to above the grill body, and an afterburner that is provided inside the exhaust passage and has a flame hole surface facing the exhaust opening side and heats and reduces the oily smoke and odorous components with a flame formed on the flame hole surface (see, for example, Patent Document 2).

JP 2017-129294 A Patent No. 5281985

When removing the sensor inside the grill chamber in the cooking device described in Patent Document 1, the worker removes the exhaust section from the rear of the grill chamber and removes the screw fixing the sensor from diagonally above. If the afterburner described in Patent Document 2 is installed inside the exhaust section described in Patent Document 1, the sensor is located below the afterburner. Therefore, if the screw is removed from diagonally above as in the conventional structure, the afterburner must be removed before removing the sensor, which can be time-consuming.

The object of the present invention is to provide a grill that allows the sensor to be removed without removing the afterburner section.

a grill burner disposed within the grill chamber for heating the food; an exhaust duct extending upward from a rear portion of the grill chamber and directing exhaust gas from within the grill chamber upward; an afterburner section disposed below the exhaust duct for heating and reducing oily smoke and odorous components generated from the food and contained in the exhaust gas; a fixed wall section disposed below the afterburner section and facing the interior of the grill chamber from the rear ; and a sensor secured to a front surface of the fixed wall section by screws from the front for detecting the temperature within the grill chamber, the afterburner section comprising a main body section having a flame port section for forming a flame on the exhaust gas from below, a hanging wall section hanging down from a front side of the main body section and disposed in front of the fixed wall section;
a cover for covering the sensor exposed through the sensor opening is fixed to the front surface of the hanging wall portion by screws from the front .

The sensor of the grill of claim 2 may be formed in a rod shape extending in the front-to-rear direction, wiring may be connected to the rear end of the sensor, and an opening may be provided on the front surface of the fixed wall portion, penetrating to the outside of the exhaust duct, for inserting the rear end of the sensor.

According to the grill of claim 1, the sensor is fixed from the front with screws to the front surface of the fixed wall portion that faces the inside of the grill chamber from the rear, so when replacing the sensor, the sensor can be removed or installed from the front. This makes it possible to replace the sensor without removing the afterburner portion of the grill.

Furthermore , since the cover surrounding the sensor is fixed to the front surface of the hanging wall portion with screws, when replacing the sensor, the cover can also be removed from the front without removing the afterburner portion.

According to the grill of the second aspect, the rear end side of the sensor is disposed outside the exhaust duct through the opening, so that the wiring connected to the rear end of the sensor can be drawn out to the outside of the 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 region W shown in FIG. 2 . 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 fixed to a bottom member 40. 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. The upper burner 21 and the lower burner 22 correspond to the grill burners of the present invention.

The grill door 3 is provided at the front of the grill chamber 2 and opens and closes the grill opening (not shown). 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.

The exhaust duct 4 extends from the rear of the grill chamber 2, slanting 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 2 to 4) (described below) located on the front side of the exhaust duct 4. 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 roughly rectangular shape that is long in the left-right direction when viewed from above. 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 structure of the exhaust duct 4 will now be described. As shown in Figures 2 to 4, the exhaust duct 4 comprises a duct body 30 and a bottom member 40. The duct body 30 is formed in a box shape that is long in the left-right direction in a plan view, with the top and bottom open. The bottom member 40 is formed in a roughly rectangular shape that is long in the left-right direction in a plan view, and is fixed to the open bottom of the duct body 30 so as to close it from below, thereby forming the bottom of the exhaust duct 4.

The duct body 30 includes a front plate portion 31, an upper plate portion 32, a right plate portion 33, a left plate portion 34, a back plate portion 35, a forward protrusion portion 36, and a partition wall 37. The front plate portion 31 is formed in a generally inverted U-shape when viewed from the front. The upper plate portion 32 extends from the upper end portion of the front plate portion 31 at an angle rearward and upward, and is formed in a generally rectangular shape that is long in the left-right direction when viewed from above.

The back plate portion 35 extends from the lower end toward the upper end while inclining rearward, and is formed in a generally rectangular shape that is long in the left-right direction when viewed from the rear. The upper end of the back plate portion 35 is bent upward. The right plate portion 33 is provided so as to close the gap between the right ends of the front plate portion 31, the upper plate portion 32, and the back plate portion 35 from the right side. The right plate portion 33 is formed in a tapered shape that narrows in width in the front-rear direction 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 lower rear corner of the right plate portion 33. The left plate portion 34 is provided so as to close the gap between the left ends of the front plate portion 31, the upper plate portion 32, and the back plate portion 35 from the left side. The left plate portion 34 is formed in a tapered shape that narrows in width in the front-rear direction as it moves upward when viewed from the left side. A left fixing portion (not shown) that protrudes to the left side is also provided at the lower rear corner of the left plate portion 34.

A grill exhaust port 39, which is generally rectangular in plan view, is formed inside the upper end of the upper plate portion 32, the back plate portion 35, the right plate portion 33, and the left plate portion 34. The combustion exhaust passage formed by the upper plate portion 32, the back plate portion 35, the right plate portion 33, and the left plate portion 34 is tapered so that the width in the front-to-rear direction becomes narrower from the bottom to the top.

The forward protrusion 36 protrudes forward from the lower end of the front panel 31, which is generally inverted U-shaped when viewed from the front, and is formed into a generally semi-rectangular cylinder 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 (see Figures 3 to 5) is formed inside the lower end of the generally inverted U-shaped partition wall 37. The exhaust opening 38 is formed into a generally rectangular shape that is long 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 from above so as to cover the opening. The sensor fixing base 44 is formed in a roughly triangular box shape in side view, and has a fixing surface 45 on the front side. The bottom of the sensor fixing base 44 is open. The fixing surface 45 faces forward and is formed in a rectangular shape in front view. A sensor support member 81 is fixed to the fixing surface 45 from the front with a screw 82 (see FIG. 6). The sensor support member 81 supports a rod-shaped temperature sensor 80 so that it extends in the front-rear direction. The temperature sensor 80 has a detection unit at its front end and detects the ambient temperature inside the grill chamber 2. A rectangular opening 451 (see FIG. 7) in front view is provided in the center of the fixing surface 45. The rear end side of the temperature sensor 80 is inserted backward into the opening 451 (see FIG. 4). The wiring 801 connected to the rear end of the temperature sensor 80 is pulled out to the rear of the bottom member 40 through the opening in the central inclined surface 411.

The right fixing part 42 extends to the right side from the right end of the bottom part 41, and is formed in a generally rectangular shape that is long in the front-to-rear direction in plan view. The left fixing part 43 extends to the left side from the left end of the bottom part 41, and is formed in a generally rectangular shape that is long in the front-to-rear direction in plan view. The right fixing part 331 and the left fixing part (not shown) of the duct main body 30 are positioned from above relative to the right fixing part 42 and the left fixing part 43, and fixed with screws 91, 92. In this way, the duct main body 30 is fixed to the bottom member 40, and the exhaust duct 4 is formed.

The structure inside the exhaust duct 4 will now be described. As shown in Figures 3 and 4, an afterburner unit 5 is provided in the lower part of the exhaust duct 4 on the upstream side in the direction in which the combustion exhaust gas flows. A flame trap 110 is attached downstream of the afterburner unit 5 and approximately in the middle of the height of the exhaust duct 4. The flame trap 110 is a flame quenching member.

The configuration of the afterburner unit 5 will be described. As shown in Figures 6 and 7, the afterburner unit 5 comprises an afterburner 50 and a burner support part 60. The afterburner 50 has a flame nozzle surface 55 on its upper surface. The flame nozzle surface 55 has multiple flame nozzles and forms flames facing upward. The afterburner 50 reduces oily smoke and odorous components generated from ingredients contained in the combustion exhaust by burning them off with the multiple flames formed on the flame nozzle surface 55.

The burner support portion 60 is formed in a generally rectangular frame shape extending to both the left and right sides in a plan view, and both ends are fixed to the right fixing portion 42 and the left fixing portion 43 of the bottom member 40 with screws 95, 96. The burner support portion 60 includes a frame portion 61 and a hanging wall portion 62. The frame portion 61 is formed in a generally rectangular frame shape that is long in the left-right direction in a plan view. In the center of the frame portion 61, a generally rectangular opening portion 611 that is long in the left-right direction in a plan view is provided. On the upper surface of the frame portion 61, the igniter electrode 27 is fixed to the right side of the opening portion 611, and the misfire sensor 28 is fixed to the left side of the opening portion 611.

The hanging wall portion 62 includes an upper hanging portion 63, a step portion 64, and a lower hanging portion 65. The hanging wall portion 62 is disposed in front of the sensor fixing base 44 with the burner support portion 60 fixed to the upper side of the bottom member 40. The upper hanging portion 63 hangs downward 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. The step portion 64 protrudes forward from the lower end of the upper hanging portion 63 and is formed in a generally rectangular shape that is long in the left-right direction when viewed from the front. The lower hanging portion 65 hangs downward from the front end of the step portion 64 and is formed in a generally rectangular shape that is long in the left-right direction when viewed from the front.

A sensor opening 68 (see FIG. 7) is provided in the left-right center of the hanging wall portion 62. The sensor opening 68 is formed in a rectangular shape when viewed from the front, and is provided across the upper hanging portion 63, the step portion 64, and the upper portion of the lower hanging portion 65. The tip of the temperature sensor 80, which protrudes forward from the fixing surface 45 of the sensor fixing base 44 of the bottom member 40, is inserted forward through the sensor opening 68 (see FIG. 4). An extension portion 681 that protrudes rearward is provided at the lower end of the sensor opening 68. The extension portion 681 is provided at a position lower than the step portion 64.

A box-shaped sensor cover 85 is disposed inside the sensor opening 68 and on the extension 681. The sensor cover 85 covers the periphery of the tip of the temperature sensor 80 that protrudes forward from the sensor opening 68 of the upper hanging portion 63. A fixed portion 86 extending leftward is provided on the left side of the sensor cover 85, and a locking piece 87 extending rightward is provided on the right side. The locking piece 87 locks to the back surface of the upper hanging portion 63 through the sensor opening 68. In this state, the fixed portion 86 is fixed to the front surface of the upper hanging portion 63 with a screw 88. As a result, the sensor cover 85 is fixed to the hanging wall portion 62 with the tip of the temperature sensor 80 covered. By covering the tip of the temperature sensor 80 with the sensor cover 85, the temperature sensor 80 is protected and the combustion exhaust can be prevented from directly contacting the temperature sensor 80.

The burner support 60 is fixed to the upper surface of the afterburner 50 with screws 93 and 94 (see Figure 6). The flame port surface 55 of the afterburner 50 is inserted from below into the opening 611 of the burner support 60 and positioned so that it is exposed facing upward.

An example of the replacement work of the temperature sensor 80 will be described with reference to Figures 4 and 7. The worker removes the top plate from the stove housing, and removes the duct body 30 from the rear of the grill chamber 2. In this state, the worker disconnects the connector of the wiring 801 of the temperature sensor 80 from the connector of the wiring extending from the control board (not shown). In this state, the worker removes the sensor cover 85 and then the temperature sensor 80, in that order.

As described above, the sensor cover 85 is fixed to the hanging wall portion 62 from the front with the screw 88. With the grill door 3 open, the worker inserts a tool into the front of the grill chamber 2, loosens the screw 88, and removes the sensor cover 85. This exposes the tip of the temperature sensor 80 from the inside of the sensor opening 68. The temperature sensor 80 is fixed to the fixing surface 45 of the sensor fixing base 44 from the front with the screw 82, behind the sensor opening 68. The worker inserts a tool from the front through the sensor opening 68, loosens the screw 82, and removes the temperature sensor 80 together with the sensor support member 81 (see FIG. 7).

Then, the worker fixes the new temperature sensor 80 to the fixing surface 45 of the sensor fixing base 44 in the reverse order of the removal procedure. At this time, the rear end side of the temperature sensor 80 is inserted into the opening 451 provided in the fixing surface 45 through the sensor opening 68 of the hanging wall portion 62. The rear end side of the temperature sensor 80 is placed outside the bottom member 40 (see FIG. 4). The worker pulls out the wiring 801 rearward inside the stove housing and then connects it to the wiring connector from the control board (not shown). The tip side of the temperature sensor 80 protrudes forward from the sensor opening 68. The worker fixes the sensor cover 85 to the hanging wall portion 62 in the reverse order of the removal procedure. In this way, the replacement work of the temperature sensor 80 is completed.

In this way, in the grill device 1, the screw 82 that secures the temperature sensor 80 and the screw 88 that secures the sensor cover 85 are both fixed from the front, so that the temperature sensor 80 and the sensor cover 85 can be removed and installed from the front. This allows the operator to replace the temperature sensor 80 without removing the afterburner 50.

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 unit 5. The grill chamber 2 contains food. The upper burner 21 and the lower burner 22 are grill burners and are provided in the grill chamber 2. The exhaust duct 4 extends upward from the rear of the grill chamber 2 and guides the oil smoke and odor components generated from the food upward from the exhaust opening 38 provided in the rear. The afterburner unit 5 is provided on the lower side of the exhaust duct 4 and heats and reduces the oil smoke and odor components generated from the food contained in the combustion exhaust. A sensor fixing base 44 is provided below the afterburner unit 5 and at a position facing the grill chamber 2 from the rear. A temperature sensor 80 is fixed from the front to the fixing surface 45 of the sensor fixing base 44 with a screw 82. With this configuration, an operator can remove or attach the temperature sensor 80 from the front when replacing the temperature sensor 80. This allows the grill device 1 to replace the temperature sensor 80 without removing the afterburner unit 5.

In the above description, the grill device 1 is an example of a "grill" of the present invention. The afterburner unit 5 is an example of an "afterburner portion" of the present invention. The temperature sensor 80 is an example of a "sensor" of the present invention. The sensor mounting base 44 is an example of a "fixed wall portion" of the present invention. The opening 451 provided in the fixing surface 45 of the sensor mounting base 44 is an example of an "opening" of the present invention. The afterburner 50 is an example of a "main body portion" of the present invention.

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 flame trap 110 may be omitted in the exhaust duct 4. The sensor cover 85 may be omitted.

In the grill device 1 of this embodiment, the sensor mounting base 44 is provided on the central inclined surface 411 of the bottom member 40 of the exhaust duct 4, and the temperature sensor 80 is fixed to the fixing surface 45 of the sensor mounting base 44. However, the position at which the temperature sensor 80 is fixed may be changed as long as it is below the afterburner unit 5 and exposed toward the inside of the grill chamber 2. For example, the temperature sensor 80 may be fixed to the front surface of the hanging wall portion 62 of the afterburner unit 5.

REFERENCE SIGNS LIST 1 Grill device 2 Grill chamber 4 Exhaust duct 5 Afterburner unit 21 Upper burner 22 Lower burner 44 Sensor fixing base 45 Fixing surface 50 Afterburner 55 Flame port surface 62 Hanging wall portion 68 Sensor opening 80 Temperature sensor 82, 88 Screw 85 Sensor cover

Claims (2)

A grill chamber for storing food;
A grill burner provided in the grill chamber for heating the food;
An exhaust duct that extends upward from the rear of the grill chamber and guides combustion exhaust gas from inside the grill chamber upward;
An afterburner section is provided in the lower part of the exhaust duct and heats and reduces the oily smoke and odor components generated from the food material and contained in the combustion exhaust gas;
A fixed wall portion provided below the afterburner portion and facing the grill chamber from the rear ;
A sensor that is fixed to the front surface of the fixed wall portion with a screw from the front side and detects the temperature inside the grill chamber;
Equipped with
The afterburner section includes:
A main body portion having a flame port portion for forming a flame from below the combustion exhaust gas;
a hanging wall portion that hangs down from a front side of the main body portion and is disposed in front of the fixed wall portion;
a sensor opening provided in the hanging wall portion to expose the sensor fixed to the front surface of the fixed wall portion toward the inside of the grill chamber;
Equipped with
A grill characterized in that a cover for covering the sensor exposed from the sensor opening is fixed from the front surface of the hanging wall portion by screws . The sensor is formed in a rod shape extending in the front-rear direction,
A wire is connected to the rear end of the sensor,
2. The grill according to claim 1 , wherein the front surface of the fixed wall portion is provided with an opening that penetrates to the outside of the exhaust duct and through which a rear end of the sensor is inserted.

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