JPS6241196Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a jig for painting and firing ceramics, which is used when painting and firing ceramics, mainly dishes.

Conventionally, the jig used when painting and firing ceramics, mainly dishes, in tunnel-type firing furnaces, etc. is an isosceles jig made of heat-resistant special steel wire with an apex angle of about 30°, as shown in Figure 1. forming a triangular framework 21;
It is known that one side connecting the middle of the equilateral sides 2 and 3 of the triangle is constructed as a reinforcing beam 5 to form a shelf. However, such an isosceles triangle framework 21
A shelf consisting of ceramics 22 before or after firing.
It is convenient for work because it is easy to hold the edge of the ceramic when placing or taking it out, but on the other hand, the opposite side 4 of the apex angle is short and the distance is narrow, so the stability of the jig is poor, and the jig is There was a drawback that when transporting the furnace by placing it on the trolley of the tunnel furnace, the vibration of the trolley could cause an accident of overturning.

The present invention provides a jig with good stability without impairing the above-mentioned workability.If the embodiment is explained in detail based on the drawings, as shown in Figs. A shaped frame 1 is formed of a heat-resistant metal material, and a plurality of frames 1 are separated by vertical pillar members 6, 7, and 8 passing through corresponding vertices at intervals necessary for the insertion and removal of dishes. In a pottery painting firing jig formed by stacking parallel layers and firmly supporting them, the other two sides 17,
Overturn prevention frames 13, 14 and 15 are located approximately within the frame plane so as to be located outside of 18, 19, and 20.
16 are provided protruding from each other. In addition to the loop shape shown in the drawing, the fall prevention frame may have a rod shape with both ends of the bases 11 and 12 extending, an L shape, or the like.

This project has the above-mentioned configuration, and is a jig consisting of a stack of triangular frameworks with acute apex angles, and a wide opening is formed for loading and unloading ceramics for firing. In addition to providing good workability, a fall-prevention frame is provided outward from both ends of the short side corresponding to the bottom within the same frame plane, and only the bottom side is substantially lengthened to increase the fall-over moment. This ensures stability comparable to the most stable equilateral triangular framework, and by forming this on the top and bottom frameworks, there is no difference in stability no matter which end is used as the bottom end. This has the advantage that it is convenient because there is no need to worry about selecting the top or bottom when loading for baking.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of a conventional ceramic firing jig, FIG. 2 is a plan view of the jig of the present invention, and FIG. 3 is a perspective view. 1...Framework, 6,7,8...Column members, 9,10
... Frame at upper and lower ends, 11, 12 ... Sides against acute angles, 13, 14, 15, 16 ... Fall prevention frame.

Claims (1)

[Scope of utility model registration request] A triangular framework 1 with acute apex angles is formed from a heat-resistant metal material, and a plurality of the frameworks are laminated at intervals by vertical column members 6, 7, and 8 passing through corresponding vertices. In a ceramic firing jig, a fall prevention frame is provided within the frame plane near both ends of sides 11 and 12 relative to the acute angle of the frames 9 and 10 at the upper and lower ends of the jig and extending outside the other two sides. 13,1
A jig for firing ceramics characterized by protruding numbers 4, 15, and 16.