JP4581372B2 - Natural convection type fixed oven pot - Google Patents

Description

  The present invention relates to a natural convection type fixed oven pot.

  As a conventional natural convection type fixed oven pot, there is a type in which a heater is provided on the top and bottom surfaces in a baking furnace to bake bread, confectionery, and the like (for example, see Patent Document 1). In this example, the oven pot has a general size, and the baking furnace has three upper and lower stages. In the baking furnace per stage, 20 to 40 breads can be baked.

  In addition, recently, the firing furnace has been downsized for use in small stores.

  Hereinafter, a small natural convection type fixed oven pot used in a small store or the like will be described with reference to the drawings.

  FIG. 4 is a sectional view of a small natural convection type fixed oven pot.

  The furnace 1 is a chamber for baking bread, confectionery, etc., the heat insulating material 2 covers the furnace 1, and the outer shell 3 forms the outer shell of the oven.

In the furnace 1, an upper fire heater 4 and a lower fire heater 5 are installed, and a hearth 6 is installed in the bottom of the furnace 1. A door 7 is provided for putting the fired product 12 in and out of the furnace 1, and the door 7 includes a glass window 8 for viewing the inside.
The operation of the small-sized natural convection type fixed oven pot configured as described above will be described below.

  Usually, when baking a confectionery or a bread with an oven pot, the upper heater 4 and the lower heater 5 are energized in advance to raise the temperature to a suitable temperature for baking in the furnace.

  Next, the door 7 for putting in and out the baked product (confectionery and bread) is opened, the baked product is placed on the hearth in the furnace, and the door 7 is closed.

  Next, the upper heater 4 and the lower heater 5 are energized and baked at a temperature and time suitable for the fired product, and when baked, the door is opened and the fired product is taken out from the furnace.

Generally, a natural convection type fixed oven pot does not have forced convection such as a fan for keeping the temperature in the furnace 1 uniform, and heaters installed on the upper and lower surfaces of the furnace 1 (upper heater 4, lower heater) 5) etc., one temperature in the furnace is kept uniform, and a plurality of fired products are baked at a time. A suitable firing time is measured using a timer or the like for the firing time, but at the end, it is judged by human eyes. Therefore, a glass window 8 is installed on the door 7 so that the inside of the furnace can be seen.
JP 2001-193933 A

  However, in the above-described conventional configuration, it is difficult to apply the same amount of heat to a plurality of baked products placed in the furnace 1, and this tends to cause a difference in baked color and burnout depending on where the baked products are installed in the furnace 1.

  In particular, the difference between the amount of radiation and reflection received from the surface of the furnace 1 and the amount of heat received from the glass window 8 of the door 7 is obvious. However, the fired product had a drawback that the color of the baking was different.

  The present invention solves the conventional problems, and provides a natural convection type fixed oven pot that can eliminate the difference in color between the fired product installed in the back of the furnace 1 and the fired product installed around the door 7. For the purpose.

The present invention relates to an oven for baking bread, confectionery, etc., a heat insulating material covering the inside of the oven, an outer shell forming an outer shell of the oven, and an upper flame installed in the furnace. Heater, a lower heater installed in the furnace, a hearth installed at the bottom of the furnace, a door for putting fired products into and out of the furnace, and installed in the door A glass window and a panel attached to the door and receiving the radiant heat of the heater for upper fire and the heater for lower fire are arranged below the glass window, from the glass window to the fired product in the furnace. By placing the panel so as to face the fired product by wrapping above the front of the hearth without blocking the line of sight, while ensuring the visibility in the furnace from the glass window It is intended to achieve a uniform temperature, above or fire heater and subsided heater The panel is heated by the radiant heat of the panel, reducing the unevenness of the fired product due to the heat generated by the panel, and arranging the panel below the glass window, the panel may block the view when viewing the fired product in the furnace It can be easily confirmed.

Further, the present invention is installed in a furnace for baking bread, confectionery, etc., a heat insulating material covering the furnace, an outer part forming an outer shell of the oven, and the furnace A heater for upper fire, a heater for lower fire installed in the furnace, a hearth installed at the bottom of the furnace, a door for putting fired products into and out of the furnace, and the door It is composed of an installed glass window, can be tilted so that the door side of the hearth becomes higher , and has an adjustment mechanism that can adjust the height of the front of the hearth, to the front of the hearth on the door side The radiant heat from the upper heater is increased, and by raising the hearth door side, the hearth door side becomes closer to the upper heater and the radiant heat obtained from the upper heater is increased. Even if the radiant heat escaping from the door is subtracted, the same thermal environment as the depth of the hearth is created.

The present invention relates to an oven for baking bread, confectionery, etc., a heat insulating material covering the inside of the oven, an outer shell forming an outer shell of the oven, and an upper flame installed in the furnace. Heater, a lower heater installed in the furnace, a hearth installed at the bottom of the furnace, a door for putting fired products into and out of the furnace, and installed in the door A glass window and a panel attached to the door and receiving the radiant heat of the heater for upper fire and the heater for lower fire are arranged below the glass window, from the glass window to the fired product in the furnace. By placing the panel so as to face the fired product by wrapping above the front of the hearth without blocking the line of sight, while ensuring the visibility in the furnace from the glass window by achieving a uniform temperature, or burning down heater and heater on fire Radiant panel is heated by the, the effect as sharp color differences of the burned material due to heat generation of the panel is eliminated. In addition, the arrangement of the panel below the glass window has an effect that the panel can be easily confirmed without obscuring the field of view when viewing the fired product in the furnace.

Further, the present invention is installed in a furnace for baking bread, confectionery, etc., a heat insulating material covering the furnace, an outer part forming an outer shell of the oven, and the furnace A heater for upper fire, a heater for lower fire installed in the furnace, a hearth installed at the bottom of the furnace, a door for putting fired products into and out of the furnace, and the door It is composed of an installed glass window, can be tilted so that the door side of the hearth becomes higher , and has an adjustment mechanism that can adjust the height of the front of the hearth, to the front of the hearth on the door side By increasing the radiant heat from the top heater, the hearth door side becomes closer to the top heater, and by increasing the radiant heat obtained from the top heater, subtracting the radiant heat escaping from the door, It can create the same thermal environment as the back of the hearth, and it can be installed deep inside the furnace. A baked product, there is an effect that baked color difference baked product that is installed around the door is eliminated.

According to a first aspect of the present invention includes a furnace for baking the bread and confectionery, and heat insulating material covering the furnace, and the outer portion forming an outer shell of the oven, the oven A heater for the upper fire installed in the heater, a heater for the lower fire installed in the furnace, a hearth installed at the bottom of the furnace, and a fired product in and out of the furnace A door, a glass window installed in the door, and a panel that is attached to the door and receives radiant heat from the heater for upper fire and the heater for lower fire, and is disposed below the glass window. By placing the panel so as to face the fired product by wrapping it above the front of the hearth without obstructing the line of sight from the window to the fired product in the furnace, it is possible to visually check the furnace from the glass window. are those while ensuring sexual achieve uniform temperature of the furnace, for the upper fire When the panel is heated by the radiant heat from the heater and the heater for lowering the fire, the unevenness of the fired product due to the heat generated by the panel is reduced, and the panel is placed under the glass window. The panel can be easily confirmed without obstructing the view.

The invention according to claim 2 is provided in an oven for baking bread, confectionery, etc., a heat insulating material covering the inside of the oven, an outer shell forming an outer shell of the oven, and the furnace. A heater for the upper fire, a heater for the lower fire installed in the furnace, a hearth installed at the bottom of the furnace, a door for taking fired products into and out of the furnace, It is composed of a glass window installed on the door, and can be tilted so that the door side of the hearth becomes higher , and is provided with an adjustment mechanism capable of adjusting the height of the front of the hearth. By increasing the radiant heat from the top heater to the front, the hearth door side becomes closer to the top heater, and by increasing the radiant heat obtained from the top heater, the radiant heat escaping from the door is subtracted. be, the size and condition of the fired product and also to the state of the radiant heat of the heater in the furnace Te, adjusting the radiation heat receiving the door side of the hearth can be always produce the same thermal environment as the back of the hearth.

Hereinafter, the embodiment of the natural convection type fixed oven pot according to the present invention,
This will be described with reference to the drawings.

  In addition, about the same structure as the past, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

(Embodiment 1)
FIG. 1 is a cross-sectional view of a natural convection type fixed oven pot according to Embodiment 1 of the present invention.

  The furnace 1 is a chamber for baking bread, confectionery, etc., the heat insulating material 2 covers the furnace 1, and the outer shell 3 forms the outer shell of the oven.

  A heater 4 for upper fire and a heater 5 for lower fire are installed in the furnace 1, and a hearth 6 is installed at the bottom of the furnace 1. A door 7 is provided for taking in and out the fired product in the furnace 1, and the door 7 includes a glass window 8 for viewing the inside.

  Further, a gasket 9 for sealing the inside of the furnace 1 and the door 7 and a hinge 10 for opening and closing the door 7 are provided. Below the glass window of the door 7, the radiant heat of the upper heater 4 and the lower heater 5 is provided. A panel 11 affected by the above is attached.

  The panel 11 is disposed at a position close to the fired product 12 disposed on the door side, and is attached to the lower side of the glass window in a shape that does not block the fired product 12 when looking into the inside from the glass window 8. ing.

  The operation of the natural convection type fixed oven pot configured as described above will be described below.

  When baking confectionery or bread, the upper heater 4 and the lower heater 5 are energized in advance to raise the temperature to a suitable temperature for baking the furnace 1.

  Next, the door 7 for putting in and out the baked product (confectionery or bread) 12 is opened, the baked product 12 is placed on the hearth 6 in the plurality of furnaces 1, and the door 7 is closed to perform baking. At this time, even if the furnace 1 can be preheated to a uniform temperature in advance, opening the door 7 causes the heat in the furnace 1 to move to the outside air, resulting in a non-uniform temperature in the furnace 1. Even if the door 7 is closed after putting a plurality of the fired products 12 in the furnace 1, a temperature difference is generated between the back of the furnace 1 and the vicinity of the door 7 in front. Moreover, it is difficult to completely eliminate the temperature difference between the inner surface of the furnace and the glass window 8 of the door 7 due to the difference in heat capacity and heat insulation due to the difference in materials.

  In this embodiment, a panel 11 is installed on the door 7. When the door 7 is closed, the panel 11 is installed on the front surface of the furnace 1, that is, on the front surface of the fired product 12 placed around the door 7. This panel 11 is affected by radiation and reflected heat from the hearth 6 affected by the upper and lower heaters 4 and 5, and has a temperature higher than that of the door 7 and the glass window 8. It becomes the same temperature.

  As described above, in the natural convection type fixed oven kettle according to the present embodiment, the fired product 12 around the door 7 is affected by the reflected heat from the panel 11 and is given the amount of heat almost the same as the depth inside the furnace 1. Thus, it is possible to eliminate the difference in baking color from the fired product placed in the back of the furnace 1.

(Embodiment 2)
FIG. 2 is a sectional view of a natural convection type fixed oven pot according to Embodiment 2 of the present invention. FIG. 3 is a detailed view of the hearth portion of the natural convection type fixed oven pot of the same embodiment.

  Since the inside of the furnace 1 to the hinge 10 is the same as that of the first embodiment, the description thereof is omitted.

  The hearth 6b of FIG. 3 is provided with a plurality of holes 14 for adjusting the height by bending the front end portion on the door side into an L shape. The hole 14 may be a long hole. The adjusting member 12 is attached to the hearth 1 and is provided with a screw hole 15 that engages with the hole 14 of the hearth 6b. Reference numeral 13 denotes a screw for connecting the hearth 1 and the adjusting member 12.

  As shown in FIG. 2, the hearth 6 b is attached with an adjustment member 12 and a screw 13 so as to be inclined so that the door side becomes higher.

  The operation of the natural convection type fixed oven pot configured as described above will be described below.

  When baking confectionery or bread, the upper heater 4 and the lower heater 5 are energized in advance to raise the temperature to a suitable temperature for baking the furnace 1.

  Next, the door 7 for taking in and out the baked product (confectionery and bread) is opened, the baked product is placed on the hearth 6 in the furnace 1, and the door 7 is closed to perform baking. At this time, even if the furnace 1 can be preheated to a uniform temperature in advance, by opening the door 7, the heat in the furnace 1 moves to the outside air and the temperature in the furnace 1 becomes non-uniform. Even if the door 7 is closed after putting a plurality of fired products in the furnace 1, a temperature difference occurs between the back of the furnace 1 and the vicinity of the door 7 in front. Moreover, it is difficult to completely eliminate the temperature difference between the inner surface of the furnace and the glass window 8 surface of the door 7 due to the difference in heat capacity and heat insulation due to the difference in materials.

In the present embodiment, the part A attached in the furnace is connected to the hearth by screws. The horizontal angle of the front and rear can be arbitrarily changed based on the rear end of the hearth depending on the place (height direction) to be connected, and the front of the hearth is made higher than the rear and inclined toward the rear. As a result, the distance a between the inner hearth of the furnace and the upper heater and the distance b between the inner furnace floor and the upper heater are changed (a> b). The influence becomes stronger. The heat from the lower heater is adjusted to a relatively uniform temperature in the hearth, and the direct influence on the fired product due to the increased distance from the lower heater is relatively small.

  As described above, the natural convection type fixed oven pot of the present embodiment is made of a material on the inner surface of the furnace 1 and the glass window 8 surface of the door 7 by making the height of the hearth 6b higher than the depth of the hearth. Covering the temperature difference resulting from the difference in heat capacity and heat insulation due to the difference in heat, the heat around the door is given the same amount of heat as in the back of the furnace, and the difference in color of the fired product placed in the back of the furnace It can be lost.

  Moreover, the difference of the baked product 12 and the dispersion | variation in the heaters 4 and 5 can be adjusted by changing easily the height of the front end of the hearth 6b with the some hole 14 provided in the front-end part of the hearth 6b. In addition, the heat around the door is given the same amount of heat as that in the inner part of the furnace, and the difference in color of the baking with the fired product installed in the inner part of the inner part can be eliminated.

  As described above, the natural convection type fixed oven pot according to the present invention can reduce the difference in temperature between the depth of the baking furnace and the temperature near the door, so there is no difference in the baking color of the baked product. It can be effectively applied in the field related to ovens.

Sectional drawing of Embodiment 1 of the natural convection type fixed oven pot by this invention Sectional drawing of Embodiment 2 of the natural convection type fixed oven pot by this invention Detailed view of the hearth part of the natural convection type fixed oven pot of the same embodiment Sectional view of a conventional natural convection type fixed oven

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Furnace 2 Heat insulating material 3 Outer part 4 Heater for upper fire 5 Heater for lower fire 6, 6b Hearth 7 Door 8 Glass window 11 Panel 12 Adjustment member 13 Screw

Claims (2)

An oven for baking bread, confectionery, etc., a heat insulating material covering the inside of the oven, an outer part forming an outer shell of the oven, and a heater for the upper fire installed in the furnace, A heater for lower fire installed in the furnace, a hearth installed at the bottom of the furnace, a door for taking in and out the fired material in the furnace, and a glass window installed in the door; The panel that is attached to the door and receives the radiant heat of the heater for the upper fire and the heater for the lower fire is disposed below the glass window, and blocks the line of sight from the glass window to the fired product in the furnace. Without disposing the panel so that it wraps above the front of the hearth and faces the fired product, the temperature inside the furnace is uniform while ensuring the visibility inside the furnace from the glass window. natural convection fixing oven pot, characterized in that to achieve reduction. An oven for baking bread, confectionery, etc., a heat insulating material covering the inside of the oven, an outer part forming an outer shell of the oven, and a heater for the upper fire installed in the furnace, A heater for lower fire installed in the furnace, a hearth installed at the bottom of the furnace, a door for taking in and out the fired material in the furnace, and a glass window installed in the door; It is possible to incline so that the door side of the hearth becomes higher, and an adjustment mechanism capable of adjusting the height of the hearth front part is provided. Natural convection type fixed oven kettle with increased radiant heat .

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