JP6499470B2 - Pottery kiln - Google Patents

Description

  The present invention relates to a simple pottery kiln capable of firing pottery using seven wheels.

  In recent years, pottery has become popular among ordinary people, and relatively inexpensive electric kilns have been developed. However, to perform ceramics at a low cost at home, electric kilns are still expensive and costly, and there are restrictions on the installation location, making it difficult to introduce them. Separately, gas kilns, kerosene kilns, and the like are also known, but are similarly difficult for individuals to introduce.

  Therefore, as a simple pottery method, a method of putting charcoal into existing seven wheels and firing pottery with the obtained thermal power has been proposed and gradually spread.

Akira Yoshida “How to Shichirin Pottery” [Search February 6, 2015], Internet <URL: http://earlybirds.ddo.jp/nendorian/howto/howto.html> [Search February 6, 2015], Internet <URL: http://www.ajiwai.com/otoko/zeal/tougei.htm>

  In general, when making pottery, a work is completed with porcelain clay and then dried, unglazed, or fired with glaze applied to the surface. In this case, if the firing temperature is 800 to 1000 ° C., it is easy firing, and if it is about 1200 to 1250 ° C., the ceramic is firing temperature of 1300 ° C. or higher. More specifically, the glaze used for what is called black music or red music requires a temperature of 900-1000 ° C. At that time, if the firing temperature of each vessel is too low, it cannot be fired sufficiently, causing problems in the strength of the pottery or preventing the expected work, so the temperature control inside the kiln is important. Also, even when heat energy (flame) is applied by fuel such as charcoal, if the temperature inside the kiln fluctuates, the expected work cannot be obtained. Moreover, temperature control is required according to the firing stage, so that up to 300 ° C. is called so-called “aburi”, more than that, up to 800 ° C. is called “taste”, and more than that is called “cooking”, and time management is also important. It is also important to control the temperature drop from baking to room temperature.

  Since the creation of pottery requires relatively strict conditions for such heat energy, it is difficult to obtain good pottery by simply putting the work on the seven wheels even if performing seven wheel pottery. It is. In order to improve this, in the known means introduced above, there has also been proposed a method in which works are put on seven charcoal fired wheels and another seven wheels are turned upside down and used as a lid. The heat energy is released from the gap between the seven wheels used as a lid, and the heat energy cannot be confined sufficiently. Furthermore, it is extremely difficult to perform precise temperature control in accordance with the firing time, and there is still room for improvement as a good ceramics kiln.

  An object of the present invention is to provide a simple pottery for pottery that can produce good pottery when performing seven-wheel pottery by obtaining thermal power from seven wheels.

  In the present invention, in order to achieve the above-described object, a cylindrical foundation having a bottom surface for placing on the upper peripheral edge of the seven wheels and a taper surface narrowed on the upper side provided on the upper side, A plurality of notch holes are provided on the outer periphery, and there is a work table on which the upper surface is baked and a reverse taper surface corresponding to the basic taper surface. And a kiln body that forms a kiln inside by contacting the taper surfaces, wherein the foundation and the work table, and the foundation and the kiln body are combined by pin coupling, respectively. Proposed a ceramic kiln. With this configuration, the members of the foundation, the work table, and the kiln body can be combined and disassembled as necessary. And since only the main body of the kiln can be removed and the work can be taken out, detailed management such as the application of glaze at an appropriate time becomes possible.

  Moreover, if the height of the work placement on the upper surface of the work table is set so as to be located in the middle of the inner surface of the base cylinder, the amount of heat applied and contact with the flame can be effectively selected and managed. Furthermore, by providing concavity and convexity concentrically on the bottom surface of the work table, heat energy is uniformly imparted to the work.

  The heat insulating sheet provided on the lower surface of the foundation can prevent unnecessary leakage of heat energy and flame from between the seven wheels and the foundation. Further, by providing a chimney at the center of the upper surface of the kiln body, it is possible to realize the passage of heat as designed. And the appropriate state of baking can be confirmed by providing a thermometer hole and a color-viewing hole in the side surface of a kiln main body. Furthermore, if a pair of handle holes are formed in the diameter direction in the kiln body, the handle can be attached, and can be used as a member for removing the kiln or keeping the kiln away from the seven wheels during ashing.

  Since the present invention uses the above-described means, it is possible to perform firing of suitable ceramics using seven wheels with a relatively simple configuration.

Exploded perspective view of the kiln of the present invention Exploded cross-sectional view of the kiln of the present invention Cross-sectional view showing a state of combining the kiln parts of the present invention

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 1 is a perspective view showing one preferred embodiment of the present invention, FIG. 2 is an exploded cross-sectional view, and FIG. 3 is a cross-sectional view showing a combination of members. It is comprised by the member. In the figure, 1 is a foundation, 2 is a work table, 3 is a kiln body, and these are made of unglazed ceramics that are resistant to heat. The foundation 1 has a cylindrical configuration in which a heat insulating sheet 10 such as iso-wool fiber is provided on the bottom surface and is in close contact with the upper surface of a seven wheel (not shown) so as to avoid unnecessary release of heat energy. 11 is a rising surface, and 12 is a tapered surface whose outer peripheral surface is squeezed upward. And the base 1 makes it one use to connect a seven wheel and the kiln body 3, and to obtain a thermal energy efficiently. Next, the work table 2 is composed of a work table 20 and a notch 21 for increasing the heat energy cut out on the outer periphery of the work table 20, and the bottom surface of the work table 20 is formed with concavities and convexities 22 concentrically. . The unevenness 22 is provided so that heat energy is uniformly applied to the entire work table 20, but the height of the unevenness does not need to be strictly limited. In addition, although the notch hole 21 is provided in eight places at equal distance in this embodiment, the number does not need to be limited to embodiment. What is required of the cutout hole 21 is that the heat energy (flame) rises uniformly, and heat energy is applied from the surroundings of the work placed on the work mounting 21, so long as this is satisfied. The shape and number are free. In other words, in ceramic art, it is important not only to apply thermal energy to a work, but also to make a flame directly contact the work, and this creates aesthetics, so the presence of the notch 21 is important.

  The work table 2 is accommodated in the foundation 1 when used, but a pin hole 23 is provided at an appropriate position on the outermost periphery of the work table 2 for fixing the work table 2, and the rising 11 of the foundation 1 corresponding thereto is also provided. A pin through hole 13 is provided. The foundation 1 and the work table 2 are fixed to each other by pin coupling of the pin hole 23 and the pin through hole 13.

  Next, the kiln body 3 is set to the inner height where it is planned to apply works of various heights to the work table 2, but if the internal volume is too small, the height of the work is restricted, but it is too high. Since the temperature inside the kiln cannot be maintained high, it is preferable to design in consideration of these relationships. 31 is a tunnel penetrating the upper surface of the kiln body 3, 32 is a thermometer hole for inserting a thermometer to measure the temperature inside the kiln, and 33 is a color viewing hole for visually confirming the firing condition of the work. . The position of the color viewing hole 33 is set at a position where the work can be directly observed, but is generally provided at a position lower than the thermometer hole 32. A plurality of pin holes 34 are formed around the lower side surface of the kiln body 3 so that the reverse taper surface 35 corresponding to the taper surface 12 of the foundation 1 is brought into contact with the taper surface 12 of the foundation 1. In combination, the pin is inserted into the pin hole 14 provided in the taper surface 12 of the foundation 1 to perform pin coupling.

  In this way, the foundation 1, the work table 2, and the kiln body 3 are combined together by being pin-coupled, and placed on the seven wheels into which charcoal fire has been put, so that the kiln main body 3 and the work table 3 A pottery kiln appears in the interior composed of two. Reference numeral 4 denotes a handle, which is attached to a pair of handle holes 36 provided in the diameter direction on the upper side of the kiln body 3, and the kiln body 3 is appropriately detached. In addition, it is possible to adjust the temperature by hanging the handle 4 from a horizontally disposed reinforcing bar or the like (not shown) by moving the kiln away from the seven wheels by using the handle 4 during the lubrication.

  In addition, when the kiln body 3 is removed, the height of the work placement 20 on the work table 2 is positioned in the middle of the cylindrical inner surface of the foundation 1, and as a result, the upper surface of the foundation 1 and the work on the work table 2. Although the height difference H is provided on the mount 20, when priority is given to the functional aspect of a pottery kiln, it is preferable that the taper surface 12 of the foundation 1 is high because heat energy is not lost. On the other hand, if it is too high, for example, when a low-quality work such as a dish is baked, it becomes difficult to take out. Therefore, the design of the height difference H is a matter that is appropriately determined depending on the intended work.

  In order to use the above-described kiln of the present invention, the work table 2 is combined with the foundation 1 by pin connection, and a work dried on the work mounting 20 is installed. In this state, the kiln body 3 is similarly combined by pin connection, and the foundation 1 is stabilized on the upper peripheral edge of the seven wheels with the handle 4. Firing is started in this way, but fuel is appropriately added by measuring the temperature in the kiln during firing using the thermometer hole 32 or by visually checking the pottery being fired directly from the color viewing hole 33. The temperature is controlled by k and the like. At that time, it is easy to remove the entire kiln from the seven wheels by using the handle 4, or the pin connection is released and only the kiln body 3 is removed, and the glaze is applied to the ceramics (including Rakuyaki). It is also easy to apply. Note that unglazed filling may be applied to the thermometer hole 32 and the color viewing hole 33.

DESCRIPTION OF SYMBOLS 1 Basic 2 Work stand 3 Kiln body 4 Handle 10 Insulation sheet 12 Taper surface 20 Work mounting 21 Notch hole 31 Chimney 32 Thermometer hole 33 Color viewing hole

Claims (7)

A cylindrical foundation having a bottom surface for placing it on the upper periphery of the seven wheels and a taper surface with the upper side narrowed on the upper side is combined with the inside of this foundation. By having a notch hole and a work table on which the upper surface is baked, a reverse taper surface corresponding to the basic taper surface, and contacting these taper surfaces A ceramic kiln characterized by comprising a kiln body forming a kiln therein, wherein the foundation and the work table, and the foundation and the kiln body are combined by pin coupling. The ceramic kiln according to claim 1, wherein the height of the work placed on the upper surface of the work table is located in the middle of the inner surface of the base cylinder. The ceramic pottery according to claim 1 or 2, wherein concavities and convexities are provided concentrically on the bottom of the work table. 2. The ceramic pottery according to claim 1, wherein a heat insulating sheet is provided on the lower surface of the foundation. The kiln for ceramic arts according to claim 1, wherein a chimney is provided at the center of the upper surface of the kiln body. The ceramic pottery according to claim 1, wherein a thermometer hole and a color viewing hole are provided on a side surface of the kiln body. The ceramic kiln according to claim 1, wherein a pair of handle holes are provided in the diameter direction above the side surface of the kiln body so that the handle can be attached.

Images