| 摘要 |
PURPOSE:To provide a buildup jig for an arc which can fit the joint part of the arc easily to the fitting part of a steel plate cell, by rpvoding a fitting channel which is to be used for fitting the joint parts provided on both side of the arc and of which the upper part is formed so as to diverge upward on the side wall of the steel plate cell in the vertical direction thereof. CONSTITUTION:In the steel plate cell work of an embedment type, the respective joint parts of the cell 1 and an arc 6 in the case of coupling the exisitng steel plate cells 1 by means of the arc 6 to one body are fitted in the following way: In the constitution wherein a guide channel 9 is attached or detached, the channel 9 is beforehand mounted to said cell 1. The channel can be mounted simply by bringing the channel 9 downward from above and mounting the same in the prescribed mounting position. With such operation alone, the channel 9 is fixed securely to the side wall 8 of the cell 1 by the engaging plate 8a of the cell 1, the bent part 9c at the top edge of the channel 9, and the lower part of the channel 9 fitted into a fitting groove 7. |
