JP5427629B2 - Incense burner net and evaluation method of burnout of incense sticks placed horizontally on the incense burner net - Google Patents

Description

The present invention relates to an incense burner net that is incorporated in an incense burner and burns incense in a horizontal position, and a method for evaluating burnout of an incense burner placed horizontally in the incense burner dish. is there.

  The incense burner dish is composed of a dish body having a shallow box shape with the entire upper surface opened, and a net body that is installed in the dish body to burn incense sticks horizontally (Patent Document 1). . Incense burners that use incense sticks in a horizontal position, several incense sticks are placed on top of each other by a number of worshipers and burned, so all of the incense sticks are burned out, and the ash produced by the burning is It is desirable to be stored in the bottom of the dish body through the mesh. However, in the conventional mesh body described later, the burning part of the incense stick horizontally placed on the mesh body disappears in the middle, and the unburned incense stick (remaining part) often remains as it is in the mesh body.

  In this way, if there is a remaining incense stick on the mesh body, in addition to the need to remove it, subsequent worshipers will be able to remove the incense stick with the previous incense stick remaining unburned. Avoiding the unburned incense sticks, it is necessary to lay their new incense sticks on the net, partially losing the clean feelings of the worshipers and the appearance of the incense burner dish.

One of the nets that has been widely used in the past is the shape shown in “Sample 5” in FIG. The mesh of “Sample 5” is a stainless steel wire knitted vertically and horizontally so that the mesh is square, but the conventional mesh has the same shape, but is formed of iron wire or the like, the diameter 0.5 0 mm stainless wire, each pitch of the vertical and horizontal is configured woven on a square mesh as either a 2.12 mm. As a result of the burning test of five incense sticks with an outer diameter of 1.9 mm and a length of 60 mm using the “Sample 5” mesh body formed of stainless steel wire, all the fires disappeared halfway and the residue remained There has occurred. And up to 4 out of 5 burned-up lengths were nearly half of the total length. As described above, even the stainless steel wire having a lower thermal conductivity than the iron wire has the above-described result, and therefore, the test result of the conventional mesh body formed of the iron wire is estimated to be worse.

  Here, the fire of the incense stick placed horizontally on the net body disappears in the state where the burning part at the tip of the incense stick reaches the metal wire part constituting the net body, and the temperature between the metal wire If the heat transfer phenomenon due to the difference occurs, and the amount of heat transferred per unit time from the burning part of the incense stick to the metal wire exceeds the limit value, the burning part at the tip of the incense stick cannot maintain a combustible temperature, It is understood that the fire will disappear.

  On the other hand, since the diameter of a general incense stick is 1.9 mm, if the mesh size of the mesh body is larger than a certain ratio with respect to the diameter of the incense stick, the incense stick is short before being burned out on the mesh body. The unburned part of the incense stick in the state falls from the mesh of the mesh body to the bottom of the dish body, the fire is extinguished, and the incense stick burns out on the mesh body, so that it is expected to be dropped as ash In view of the functions to be performed, the above phenomenon is also not preferable.

JP 2001-17306 A

  The present invention relates to both the heat transfer phenomenon caused by direct contact between the incense burner tray net and the incense burner, and the relationship that the mesh size of the net cannot be increased beyond a certain ratio to the incense stick diameter. Attention is focused on the provision of a net for an incense burner dish in which incense sticks placed horizontally can be burned out on the net.

The invention of claim 1 for solving the above-mentioned problem is a net that constitutes an incense burner dish in which an incense stick is placed horizontally and burns, and the net has an infinite number of holes continuously on the entire surface of a thin metal plate. When the ratio of the total surface area of the thin metal sheet to the unit area of the thin metal sheet is defined as the total surface area ratio, the total surface area ratio is 0.3 to 1.1, and the inscribed circle of the hole The diameter is smaller than 1.7 times the diameter of the incense stick, and the thickness of the metal thin plate is 0.05 to 0.50 mm .

The incense dish net body according to the invention of claim 1 is formed by continuously forming innumerable holes on the entire surface of a thin metal plate by chemical processing such as etching and mechanical processing such as punching .

  The burning of the incense stick that is burned while being placed horizontally on the thin metal plate that constitutes the net of the incense burner dish is connected to the adjacent holes among the countless holes formed in the thin metal plate. This is because the heat of the incense burning portion is excessively taken away by the metal thin plate due to heat transfer when the burning portion of the incense stick directly contacts the connecting side portion. And since the heat transferred from the incense burning part to the metal thin plate is dissipated from the surface of the metal thin plate, it is estimated that the amount of heat removed from the incense burning part by the metal thin plate is proportional to the total surface area ratio. The And, as a result of various experiments, the present inventor, when the total surface area ratio is 0.3 to 1.1, the burning part of the incense stick remains as it is even if it reaches the connecting side part of the metal thin plate. It came to obtain the technical knowledge that combustion could be continued. In addition, in a state where the net body made of a thin metal plate is installed on the incense stick dish, the heat loss of the burning part of the incense stick is reduced as the total surface area ratio is smaller, provided that the thin metal plate has rigidity capable of holding a flat surface. This is preferred because the amount is reduced. In addition, the diameter of the innumerable holes formed in the thin metal plate is smaller than the diameter of the incense stick, so that the incense stick shortened by combustion does not fall out of the hole while burning, and all of the incense stick is reticulated. It will be possible to burn up.

  Here, the reason why the total surface area ratio is specified as 0.3 to 1.1 is based on the following grounds. That is, when the total surface area ratio is larger than 1.1, the total surface area becomes too large with respect to the unit area of the metal thin plate, and the burning part of the incense stick reaches the connection side of the metal thin plate and directly contacts it. In this state, when the amount of heat per unit time that the heat of the burning part of the incense stick is taken away by the metal thin plate becomes too large and reaches the connecting edges of the metal thin plate that arrives one after another, the incense stick burns by burning. This is because the temperature at which the combustion part can be combusted cannot be maintained at the connection side before being exhausted to become ash, and the fire of the combustion part is extinguished. On the other hand, when the total surface area ratio is smaller than 0.3, the hole of the metal thin plate becomes too large with respect to the diameter of the incense stick, or the metal thin plate becomes too thin. Even if it is avoided that the fire of the combustion part is extinguished by heat transfer at the connection side of the thin metal plate, the shortened incense stick before it burns out falls through a hole that is too large for the diameter of the incense stick At the same time, in the latter case, the incense stick cannot be maintained in a state where the incense stick is placed on the metal thin plate or as it is, and the rigidity capable of maintaining the flat surface cannot be maintained.

In addition, if the diameter of the inscribed circle of the hole in the thin metal plate is not smaller than 1.7 times the diameter of the incense stick, the incense stick burning on the mesh body will fall from the hole during the burning process. The incense stick cannot be burned out on the mesh body. Thus, if the diameter of the inscribed circle of the hole in the thin metal plate is smaller than 1.7 times the diameter of the incense stick and the thickness of the thin metal plate is in the range of 0.05 to 0.50 mm, Therefore, the total surface area ratio can be 0.3 to 1.1.

The invention of claim 2 is characterized in that, in the invention of claim 1, innumerable holes formed on the entire surface of the thin metal plate have a regular hexagonal honeycomb shape .

When the infinite number of holes formed in the thin metal plate is a regular hexagonal honeycomb shape as in the invention of claim 2 , continuous disposition in three different directions is possible, and the regular hexagonal holes are the same. Since it is formed by being surrounded by six long connecting sides, the innumerable connecting sides are crossed into a Y shape. For this reason, when an incense stick is put on a thin metal plate and the burning part of the incense stick is in direct contact with the specific connection side part and heat transfer is performed, the remaining 2 forming a Y-shaped intersection is formed. Since it is only transmitted to the connection side part of the book, the heat transfer rate is slow compared to each of the square or equilateral triangle holes having four or six intersections. As a result, the amount of heat transmitted to the incense stick in contact with the connection side portion is reduced to the thin metal plate per unit time, and it becomes easier to maintain the temperature at which the incense burner can burn, Can prevent the fire from disappearing.

The invention of claim 3 is a net that constitutes an incense burner dish in which incense sticks are burnt horizontally, and the net is formed with innumerable holes continuously on the entire surface of the metal thin plate, It is characterized by being preheated .

Unlike a mesh body formed by knitting metal wires in the vertical and horizontal directions so that the mesh has a square shape, the net body made of a thin metal plate easily conducts heat as a whole. Therefore, as in the invention of claim 3, when the sheet metal previously heated pre and possible to reduce the temperature difference between the combustion section of the sheet metal and incense, per unit time from the combustion of incense to sheet metal since possible to reduce the transmission amount of heat, preheating of the sheet metal, contributes to prevent the fire burning portion of the incense is extinguished in the middle.

The invention of claim 4 constitutes an incense burner dish that is burned with the incense stick placed horizontally, and burns the incense stick placed horizontally on a net body in which innumerable holes are continuously formed on the entire surface of the thin metal plate. In this case, it is a method for evaluating burnout of the incense stick, and when the ratio of the total surface area of the net body to the unit area of the net body is defined as the total surface area ratio, the total surface area ratio is 0.3. -1.1, and the range in which the diameter of the inscribed circle of the hole in the mesh body is smaller than 1.7 times the diameter of the incense stick is determined as the range in which the incense stick burns out. Yes.

The invention according to claim 4 is a surface on which the incense stick is burned out when burning the incense stick placed horizontally on the net body in which innumerable holes are continuously formed on the entire surface of the thin metal plate. That is, from the aspect of evaluation of burnout of incense, the reason why the ratio of the diameter of the inscribed circle of the holes of the net body to the total surface area ratio and the outer diameter of the incense stick was specified as described above Is the same as the reason described in the invention of claim 1.

In the inventions according to claims 1 to 3, when the net body is formed of a metal thin plate, a total surface area ratio which is a ratio between a unit area of the metal thin plate and a total surface area of the metal thin plate within the unit area. Is deeply related to whether or not the burning part of the incense can be continuously burned, and the inventor has discovered through experiments, and based on the discovery, the total surface area ratio is 0.3 to 1. 1, the diameter of the inscribed circle of the holes formed innumerably in the metal thin plate is smaller than 1.7 times the diameter of the incense stick, and the thickness of the metal thin plate is 0.05 to 0.50 mm The amount of heat transferred per unit time from the incense stick burning part to the metal sheet is within the range where the burning of the incense stick burning part can be continued, and it is possible to maintain the flat surface necessary as a net for placing the incense stick horizontally. Because of its high rigidity, a thin metal plate is used as the net for the incense burner. Possible and that Do not. Further, since a thin metal plate, compared with the mesh plate was a rectangular mesh woven metal wire in vertical and horizontal directions, so liable to be conducted to the entire heat, it is possible to pre-heat, by the preheating, incense The temperature difference between the burning part and the thin metal plate can be reduced, the amount of heat transferred from the burning part of the incense stick to the thin metal plate can be reduced, and consequently the fire of the burning part of the incense stick can be prevented from extinguishing.

Mesh member N ₁ according to the present invention _{(N 2, N 3, N} 11) is a perspective view of a partially cutaway censer dish A with the. Is a plan view of the mesh member N ₁ according to the present invention (N _2, N _3). It is a partial enlarged plan view of net N ₁ concerning the present invention. It is a partial enlarged plan view of net N ₂ concerning the present invention. It is a partially enlarged plan view of the mesh member N ₃ according to the present invention. It is a partially enlarged plan view of the mesh member N ₁₁ according to the present invention. It is a table showing the results of incense burning test using a plurality of thin plate-like mesh member including thin plate-shaped mesh member N ₁ made of stainless steel sheet according to the present invention. Is a table showing the results of incense burning test using a mesh of a plurality of network including mesh member N ₁₁ reticulated formed by knitting stainless steel wire material according to the present invention. It is a graph which shows the relationship between the burning rate and total surface area ratio in the burning test of an incense stick using a plurality of different nets.

  Hereinafter, the concrete body of the incense burner according to the present invention will be described in more detail by showing specific examples of the present invention and the results of the combustion test.

FIG. 1 is a perspective view in which a part of an incense burner plate A provided with a net body N ₁ (N ₂ , N ₃ , N ₁₁ ) according to the present invention is broken, and FIG. 2 is a net body N according to the present invention. ₁ (N ₂ , N ₃ ) is a plan view, and FIG. 3 is a partially enlarged plan view of a net body N _{1 according} to the present invention. In FIG. 1, the incense burner dish A is composed of a dish body 2 provided with legs 1 and a thin plate-like net body N ₁ installed in the dish body 2. The thin plate-like net body N ₁ has a rectangular shape, bends both ends in the width direction at right angles to form the upright portion 3, and is installed upright in the dish body 2 by the pair of upright portions 3. In FIG. 2, the portion surrounded by the alternate long and short dash line is a mesh portion 4 in which an infinite number of holes H ₁ are formed, and the two two-dot chain lines are broken lines for forming the upright portion 3. Indicates.

As shown in an enlarged view in FIG. 3, the net body N ₁ of Example 1 has an infinite number of regular hexagonal holes H _{1 in} a stainless thin plate having a plate thickness (0.15 mm), a specific direction, and the specific direction. It is formed continuously along a total of three directions including two directions inclined at 60 ° and 120 ° with respect to the direction, and the whole has a so-called “turtle shape” shape. The size of the hexagonal hole H ₁ has a same diameter (= 1.9 mm) of the diameter of the inscribed circle (D) is incense S (see FIG. 1). When an infinite number of regular hexagonal holes H ₁ are formed on the stainless steel thin plate as described above, each hole H ₁ is surrounded by the six straight connecting side portions 11 having the same length. The hole H ₁ is formed. For this reason, the innumerable connecting side portions 11 intersect in a Y shape. The width (W) of the connection side portion 11 of the net body N ₁ of Example 1 is (0.15 mm). Example 1 corresponds to “sample 3” of the mesh body in FIG.

The net body N ₁ made of a stainless steel plate having a plate thickness (0.15 mm) is optimally formed by chemical processing by etching, but can also be formed by machining by punching.

The weight per unit area [(10 × 10) mm = 100 mm ² ] of the mesh body N ₁ is (0.017 g). The total surface area, which is the sum of the front and back areas per unit area, the area of the inner peripheral surface of each hole H ₁ , and the area along the thickness direction appearing on each of the four end faces is (55. 7 mm ² ). Here, if the ratio of the total surface area to the unit area is defined as “total surface area ratio”, the “total surface area ratio” of the net N ₁ of Example 1 is (0.557). This “total surface area ratio” is an indispensable concept regarding the specification and evaluation of the present invention.

Here, in the table of FIG. 7, the shapes of various thin plate-like mesh bodies used in the incense burning test are illustrated, and “sample 3” corresponds to the mesh body N ₁ of the first embodiment. As described above, “Sample 2” and “Same 4” are both different from the net body N _{1 of} Example 1 only in the thickness, and the “Sample 2” and “Same 4” meshes are different. The plate thickness of the body is (0.10 mm) and (0.25 mm), respectively, and the material excluding the plate thickness and the shape of the hole are the same as the net body N _{1 of the} first embodiment. Further, the mesh body of “Sample 1” has the same thickness (0.15 mm) as the mesh body N _{1 of} Example 1, but the size of the regular hexagonal hole is different. The diameter of the inscribed circle of the innumerable hexagonal holes formed in the network of “Sample 1” is (0.72 mm), and the width of the connection side is (0.17 mm). The “total surface area ratio” of “Sample 1”, “Same 2”, and “Same 4” are (1.225), (0.466), and (0.779), respectively. As will be understood from the experimental results described later, “Sample 1” does not correspond to the example of the present invention and is listed as the “comparative example” of the present invention.

In the present invention, it is necessary that the burning part of the incense stick S placed horizontally on the net body N ₁ is not burned out and burned out to the end. From this point of view, the above-mentioned “total surface area” Since the technical knowledge that “the ratio” needs to be within the range of (0.3 to 1.1) is obtained from the results of the experiment described later, it is within the range that satisfies the condition of the “total surface area ratio”. , The size of the regular hexagonal holes and the thickness of the stainless steel plate can be arbitrarily determined to obtain various nets having innumerable regular hexagonal holes.

Mesh member N ₂ of Example 2, as shown enlarged in FIG. 4, a myriad of square holes H ₂ stainless sheet is a shape formed continuously in vertical and horizontal, the hole H ₂ The diameter (D) of the inscribed circle is the same as the diameter (1.9 mm) of the incense stick S, and the width (W) of the four connecting sides 12 forming the square hole H ₂ is ( 0.15 mm). The net body N ₂ in which countless holes H ₂ having a square shape are formed needs to have the above-mentioned “total surface area ratio” within the range of (0.3 to 1.1). The plate thickness of ₂ is determined from the viewpoint of the “total surface area ratio”, and specifically, is in the range of (0.10 to 0.30 mm).

As shown in FIG. 5 in an enlarged manner, the mesh body N ₃ of Example 3 has an infinite number of equilateral triangular holes H ₃ formed in a stainless steel plate in a specific direction and 60 ° and 120 ° with respect to the specific direction. The diameter (D) of the inscribed circle of the hole H ₃ is the same as the diameter (1.9 mm) of the incense stick S. Yes. The width (W) of the three connecting sides 13 forming the regular triangular hole H ₃ is (0.15 mm). It is necessary for the “total surface area ratio” to be within the range of (0.3 to 1.1) because the above-described regular hexagonal and square holes H ₁ and H ₂ are formed innumerably. The same applies to the fields N ₁ and N ₂ .

Reference example 1

Reference Example 1 is a mesh body N ₁₁ shown by “Sample 7” in FIG. 8 and is formed by knitting stainless steel wires vertically and horizontally so that the mesh has a square shape. That is, as shown in FIG. 6, the diameter (E) of the stainless steel wire is (0.19 mm), and the length (L) of one side of the square mesh H ₁₁ is substantially equal to the diameter of the incense stick S. It is the same (1.91 mm). The “total surface area ratio” of the mesh body according to “Sample 7” is (0.716).

“Sample 5”, “Same 6”, and “Same 8” shown in FIG. 8 are each a net formed by knitting stainless steel wire vertically and horizontally so that the mesh has a square shape. Compared to “Sample 7” which is a reference example , the diameter (E) of the stainless steel wire used is larger, or the length (L) of one side of the mesh is larger or smaller than (1.9 mm). ing. That is, in “Sample 5”, the diameter (E) of the stainless wire is (0.50 mm), the length (L) of one side of the “mesh” is (2.12 mm), and the “total surface area ratio” "Is (1.570). In “Sample 6”, the diameter (E) of the stainless wire is (0.19 mm), the length (L) of one side of the “mesh” is (0.64 mm), and the “total surface area ratio” is , (1.909). In “Sample 8”, the diameter (E) of the stainless wire is (0.19 mm), the length (L) of one side of the “mesh” is (3.18 mm), and the “total surface area ratio” is (0.358).

As will be understood from the experimental results described later, only “Sample 7” corresponds to the reference example of the present invention, and the remaining “Samples 5, 6, and 8” are all “Comparative Examples” of the present invention. ".

Then, using the “samples 1 to 8” of the above-described mesh body, a burning test of an incense stick having a diameter (1.9 mm) and a length (60 mm) shorter than a general incense stick length (135 mm) is performed. The test results are shown in FIGS. Each sample was evaluated five times for each sample from the viewpoint of burning the incense sticks without dropping from the holes or meshes on the mesh body. In FIG. 7 and FIG. 8, in the item “remaining burnt length of incense stick”, “0” is displayed when burned out without falling, and “burned remaining length” when left unburned. When the incense stick falls from the mesh in a short state during combustion, the indication of “the remaining length of the incense stick burns” and “falling” is also shown. The test is temperature 16.6 ° C, at room humidity 45%, net assembly according to each sample was performed without preheating. The average burning speed when the incense stick was burned up without being placed horizontally on the net body was (3.78 mm / min), and “average combustion” in FIGS. “Speed” refers to the average of five tests performed on each sample.

  And as for the test result of the mesh body made of a stainless steel thin plate, as shown in FIGS. 7 and 9, the diameter of the inscribed circle of the regular hexagonal hole in “Samples 1 to 4” is (0.72 mm). And only “Sample 1” having a smaller hole than “Samples 2 to 4” and having a “total surface area ratio” of “1.225” is 4 times out of 5 times. Incense burn-out occurred, and the burn-up length was almost half of the full length three times, and the object of the present invention could not be achieved. However, the remaining “Samples 2 to 4” all have a “total surface area ratio” within the range of (0.3 to 1.1), which is one of the requirements of the present invention. In this test, it was found that the incense stick could be burned out on the mesh body to achieve the object of the present invention.

  Further, as shown in FIG. 9, regarding the “average burning rate”, it was found that the smaller the “total surface area ratio”, the faster the burning rate. This is because, when the “total surface area ratio” is small, the amount of heat released from the surface of the mesh body per unit time is small. As a result, the amount of heat transferred per unit time to the stainless steel thin plate is reduced, which means that the degree of decrease in the temperature of the combustion portion is reduced and combustion is easy.

On the other hand, FIG. 8 and FIG. 9 show the test results of a mesh body formed by knitting stainless steel wire vertically and horizontally so that the mesh has a square shape. “Sample 5” was formed with a stainless steel wire having a diameter (0.50 mm) so that the length of one side of the mesh was (2.12 mm), and “Sample 6” was a diameter (0.19 mm). ), The length of one side of the mesh is (0.64 mm), and “Sample 7” is the network N ₁₁ of Reference Example 1 described above. “8” is formed of a stainless steel wire having a diameter (0.19 mm) so that one side of the mesh has a length of (3.18 mm). The “total surface area ratio” of “Samples 5 to 8” is (1.570), (1.909), (0.716), and (0.358), respectively.

As a test result, only the material is a stainless wire, and both the hole shape and the wire diameter are the same as those of the conventional mesh body, “Sample 5” is changed to “Sample 7” which is a reference example of the present invention. In comparison, because the “total surface area ratio” is large, that is, the amount of heat released is large, the amount of heat transferred per unit time from the burning part of the incense stick to the stainless steel wire is large. It was found that the fire went out after burning the incense stick for a few millimeters and could not be used. Regarding “Sample 6”, since the “total surface area ratio” was larger than “Sample 7” which is a reference example of the present invention, incense burnout occurred up to 4 times out of 5 times. It was also found that the “average burning rate” was significantly slower than the average burning rate (3.78 mm / min) when burning with incense sticks.

Regarding “Sample 7” which is a reference example of the present invention, the “total surface area ratio” is (0.716), which is significantly smaller than that of “Sample 5 and 6”. In all cases, the incense stick was burned out on the mesh body without falling from the mesh even when shortened by combustion, and it was found that the incense can be fully used. On the other hand, “Sample 8” has a “total surface area ratio” of (0.358), is smaller than “Sample 7”, and is superior to “Sample 7” in terms of “Average burning rate”. However, since the length of one side of the mesh is approximately 1.7 times the diameter of the incense stick, it falls from the mesh when the incense stick becomes shorter up to 3 times out of 5 times. It has been found that the problems of the present invention cannot be achieved.

  From the test results described above, the “total surface area ratio”, which is the ratio of the unit area of the thin metal plate constituting the net of the incense burner dish to the total surface area of the thin metal plate within the unit area, In relation to the amount of heat transferred per unit time to the thin plate, it can be seen that there is an important concept that is the basis for determining whether the incense stick placed horizontally on the mesh body will burn out without burning. In addition, it is a convenient concept for specifying the scope of the present invention by using the “total surface area ratio”. From the test results, the “total surface area ratio” is ( 0.3 to 1.1). On the other hand, in the case of a net body in which an infinite number of square meshes are formed by knitting a metal wire vertically and horizontally, in order to achieve the object of the present invention, the “total surface area ratio” is (0.5 to 1.. 0). Even in a net formed of either a metal thin plate or a metal wire, the size of the holes formed in the metal thin plate and the mesh formed of the metal wire is larger than a certain value with respect to the diameter of the incense stick. Since the shortened incense stick falls from the hole or mesh, it can be understood that the problem of the present invention cannot be achieved without depending on the test result. The limit value of whether or not the shortened incense stick falls from the hole formed in the metal thin plate and the mesh formed of the metal wire, that is, the ratio of the size of the hole or mesh to the diameter of the incense stick is the experiment of sample 8 From the result, it is estimated that it is about (1.7 times).

In addition, the above-mentioned test on the net made of a thin metal plate is only for the case where the hole shape is a regular hexagon, but the “total surface area ratio” is (0.3 to 1.1), and the inscribed circle of the hole As long as the two conditions that the diameter of the incense stick is smaller than the diameter of the incense stick, it is considered that the same results as the above test results can be obtained for the above-mentioned nets N ₂ and N ₃ with a square or equilateral triangle shape. It is. Furthermore, regarding the materials used, since stainless steel has a significantly lower thermal conductivity than carbon steel, iron, copper, etc., from the viewpoint of reducing the amount of heat transferred per unit time from the burning part of the incense stick to the metal thin plate. Is the most suitable metal, but even if the metal sheet is made of carbon steel, iron, copper, etc., from the viewpoint of reducing the amount of heat transferred per unit time, it is compared with the test results described above that selected the stainless sheet. Although the results are somewhat inferior, the object of the present invention can be achieved as long as the above two conditions are satisfied. Furthermore, as the metal, when selecting a stainless steel is believed also to preform become composite by plating the stainless steel surface of the thin plate used as a metal sheet, stainless sheet and equivalent results are obtained .

  As described above, the shape of the holes in the network having a structure in which an infinite number of holes are formed in a thin metal plate is not limited to the structure in which holes having the same shape are continuously provided in a plurality of directions, and the total surface area ratio is (0. As long as the condition of 3 to 1.1) is satisfied, the metal thin plate may have an infinite number of irregularly shaped holes.

In the case of mesh member made of sheet metal, for the assignment achievement of the present invention, it is also effective to the thin metal plate to pre heat. The preheating of the sheet metal, since it is possible to reduce the temperature difference between the combustion section of the sheet metal and incense, is reduced the transmission amount of heat per unit time from the combustion of incense into the sheet metal.

A: Incense burner dish
D: Diameter of the inscribed circle of the hole formed in the net made of a thin metal plate
E: Diameter of the metal wire constituting the net body H _{1 to} H ₃ : Holes formed in the thin metal plate
H _11: Amiana
L: Length of one side of the net hole N _{1 to} N ₃ , N ₁₁ : Net body
S: Incense stick
W: The width of the connection side of the net made of a thin metal plate
4: Net part of net body 11-13: Connection side part of hole formed in metal thin plate

Claims (4)

A net that constitutes an incense burner that burns incense sticks horizontally,
The network is formed with innumerable holes continuously on the entire surface of the thin metal plate,
When the ratio of the total surface area of the metal sheet to the unit area of the metal sheet is defined as the total surface area ratio,
The total surface area ratio is 0.3 to 1.1, the diameter of the inscribed circle of the hole is smaller than 1.7 times the diameter of the incense stick, and the thickness of the metal thin plate is 0.05 to A net for an incense oven dish characterized by being 0.50 mm. Countless pores, incense burners dish for network of claim 1, which is a regular hexagon honeycomb shape is formed on the entire surface of the sheet metal. A net that constitutes an incense burner that burns incense sticks horizontally,
An infinite number of holes are continuously formed on the entire surface of the metal thin plate, and the metal thin plate is preheated and used . An incense burner dish that is burnt with the incense stick placed horizontally is burned when burning the incense stick placed horizontally on a net body in which countless holes are continuously formed on the entire surface of the thin metal plate. A method for evaluating exhaustion,
When the ratio of the total surface area of the net body to the unit area of the net body is defined as the total surface area ratio, the total surface area ratio is 0.3 to 1.1, and the inscribed holes of the net body A range in which the diameter of the circle is smaller than 1.7 times the diameter of the incense stick is determined to be a range in which the incense stick burns out. Evaluation method.

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