JPS6243279Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a support stand for firing ceramic products, which is used when firing ceramic products such as roof tiles.

Conventional supports for firing ceramic products of this type include a ceramic base plate with a tapered hole for fitting a support rod, and a ceramic support with a tapered insertion end formed at the lower end to correspond to the tapered hole. The support rod is usually made of a base plate made of ceramic and a base plate made of ceramic. Because it is difficult to obtain dimensional accuracy for support rods, if you prepare a large number of base plates and support rods and insert the insertion end of any support rod into the tapered hole provided in the base plate, the dimensional accuracy will be within the allowable dimensional tolerance. However, due to a combination of dimensional variations, the positions of the top ends of each support rod will be uneven, and as a result, the ceramic products supported on the top ends of each support rod will be tilted at different angles, causing pecking, and the supported points may not meet the specifications. There were problems in that the product would be deformed if it was lost in some places, and the flow of the firing gas would become uneven, resulting in uneven temperature and atmosphere inside the furnace.

The present invention was completed with the aim of creating a support stand for firing ceramic products that solves these problems.As shown in the illustrated embodiment, a ceramic base plate 1 is provided with a tapered hole 2 for fitting a support rod. A support rod 3 made of ceramic is loosely fitted into the tapered hole 2 with a tapered insertion end 4 formed at its lower end, and either the insertion end 4 and the tapered hole 2 are connected. An edge portion 6 formed on either or both of the tapered hole 2 and the insertion end portion 4 is supported by an upwardly expanding tapered support surface 5 formed on one or both of them. be. The upwardly expanding tapered support surface 5 is shorter than the tapered hole 2 or the inclined surface of the insertion end 4 and has a steep angle with respect to the axis, and this support surface 5 is shown in FIGS. 1 and 2. Generally, the edge part 6 is formed at the upper end of the insertion end part 4 and the edge part 6 is formed at the upper end edge of the tapered hole 2 as in the first and second embodiments. Even if the supporting surface 5 is formed at the lower end of the tapered hole 2 and the edge portion 6 is formed at the tip edge of the insertion end portion 4, as in the third embodiment shown in FIG.
An upwardly expanding tapered support surface 5 is formed at the upper end of the insertion end 4 and the lower end of the tapered hole 2, and an edge portion 6 is formed at the upper end edge of the tapered hole 2 and the tip edge of the insertion end 4. Alternatively, the taper hole 2
The shape of the insertion end 4 is not particularly limited, such as square or circular, but in the first embodiment shown in FIG. 2. In the third embodiment, the cross-sectional shape of the tapered hole 2 and the insertion end 4 is approximately square with chamfered portions 7 formed at the four corners, and the support surface 5 is shaped like a triangle at the end of the chamfered portion 7. is formed. Also,
In FIG. 4, reference numeral 8 denotes a hole for removing dust which is connected to the lower end of the tapered hole 2.

With this structure, the insertion end 4 of the ceramic support rod 3 loosely fitted into the tapered hole 2 provided in the ceramic base plate 1 is in contact with the insertion end 4. An edge portion is formed on one or both of the ends of the tapered hole 2 and the insertion end 4 on the upwardly expanding tapered short support surface 5 formed on one or both of the ends of the hole 2. 6 are supported by making linear contact with each other, there is no wobbling and the stability is extremely good.In addition, since the base plate 1 and the support rod 3 are made of ceramics, the dimensional stability is within the allowable dimensional tolerance. Even if there is a dimensional error, it will be within the range from the upper end to the lower end of the short inclined support surface 5, so if a large number of support rods 3 are erected at the required intervals and the ceramic product is supported at the upper ends, There is no change in the product due to uneven inclination of the ceramic product or deviation of the supporting part from the specified position, and there is no possibility of uneven temperature or atmosphere in the furnace.

Therefore, the present invention solves the problems of the conventional supports for firing ceramic products of this type.
Due to its simple structure, it is easy to mass produce and can be provided at a low cost, making it of great practical value.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of the main part showing the first embodiment of the present invention, Fig. 2 is a partially cutaway front view of the main part showing the second embodiment of the invention, and Fig. 3 is a partially cutaway front view of the main part showing the second embodiment of the invention. Similarly, FIG. 4 is a partially cutaway plan view and a partially cutaway front view showing a third embodiment of the present invention. 1: Ceramics base plate, 2: Tapered hole for fitting support rod, 3: Ceramics support rod, 4:
Tapered insertion end, 5: upwardly expanding tapered support surface, 6: edge portion, 7: chamfered portion.

Claims (1)

[Claims for Utility Model Registration] 1. A tapered hole 2 for fitting a support rod is provided in a base plate 1 made of ceramics, and a support rod 3 made of ceramics is inserted into the taper hole 2 through a tapered insertion hole formed at the lower end of the tapered hole 2. The tapered hole 2 and the insertion end 4 are loosely fitted with the insertion end 4 into an upwardly expanding tapered support surface 5 formed on either or both of the insertion end 4 and the tapered hole 2. A support stand for firing a ceramic product, characterized in that an edge portion 6 formed on one or both of the above is supported. 2. The ceramic product according to claim 1, in which an upwardly expanding tapered support surface 5 is formed at the upper end of the insertion end 4, and an edge portion 6 is formed at the upper end edge of the tapered hole 2. Support stand for firing. 3. Sintered ceramic product according to claim 1, in which an upwardly expanding tapered support surface 5 is formed at the lower end of the tapered hole 2, and an edge portion 6 is formed at the tip edge of the insertion end portion 4. support stand. 4 An upwardly expanding tapered support surface 5 is formed at the upper end of the insertion end 4 and the lower end of the tapered hole 2, and an edge portion 6 is formed at the upper end edge of the tapered hole 2 and the tip edge of the insertion end 4. A support stand for firing ceramic products according to Claim 1 of the Utility Model Registered Claim. 5. The tapered hole 2 and the insertion end 4 have a substantially rectangular cross-sectional shape with chamfered portions 7 formed at the four corners, and the support surface 5 is formed at the end of the chamfered portion 7. A support stand for firing a ceramic product according to item 1, item 2, item 3, or item 4.