JPH0327595U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図及び第２図は本考案の一例を示す斜視図
及び縦断面図、第３図及び第４図は本考案の他の
例を示す斜視図及び縦断面図、第５図は炉底部内
張り施工態様を示す部分上面図、第６図は第５図
のＡ−Ａ線断面図、第７図及び第８図は従来の四
方迫煉瓦の斜視図及び縦断面図、図中： １……四方迫煉瓦、２……ウエア部、３，３′
……炉芯煉瓦、４……四方迫煉瓦頂面、５……耐
久裏張り（パーマ部）、６……四方迫煉瓦底面、
７……切欠部、α……切欠角度。 Figures 1 and 2 are a perspective view and a vertical sectional view showing one example of the invention, Figures 3 and 4 are a perspective view and a longitudinal sectional view showing another example of the invention, and Figure 5 is the bottom of the furnace. FIG. 6 is a sectional view taken along the line A-A in FIG. 5, and FIGS. 7 and 8 are perspective views and longitudinal sectional views of conventional four-sided mortar bricks. In the figure: 1... ...Square bricks, 2...Wear section, 3, 3'
... Hearth brick, 4... Top surface of four-way abutment brick, 5... Durable lining (permanent part), 6... Bottom surface of four-way abutment brick,
7... Notch, α... Notch angle.

Claims (1)

【実用新案登録請求の範囲】 １ 四方迫煉瓦の底面６の一部に、該底面６の一
辺を含むくさび状の切欠部７を設けたことを特徴
とする炉底用四方迫煉瓦。 ２ 前記切欠部７の切欠角度αが前記底面６に対
して１〜３°である請求項１記載の炉底用四方迫
煉瓦。 ３ 前記切欠部７の傾斜方向が炉芯方向である請
求項１記載の炉底用四方迫煉瓦。[Claims for Utility Model Registration] 1. A square mortar brick for a hearth bottom, characterized in that a wedge-shaped notch 7 including one side of the bottom surface 6 is provided in a part of the bottom surface 6 of the square mortar brick. 2. The square mortar brick for a hearth bottom according to claim 1, wherein the notch angle α of the notch portion 7 is 1 to 3 degrees with respect to the bottom surface 6. 3. The square mortar brick for a hearth bottom according to claim 1, wherein the direction of inclination of the notch portion 7 is in the direction of the hearth core.