| 摘要 |
PROBLEM TO BE SOLVED: To form a glass lid 9 for clogging the upper face opening of a water tank 1 as lid pieces 9a and 9b divided into two parts which are advantageous for handling, in the water tank 1 in which an intermediate-reinforcing crossbar 7 is provided in a state laterally bridged to an upper frame 6 so as to enable stable covering with the divided lid pieces 9a and 9b. SOLUTION: A glass lid-receiving frame 8 is attached onto the intermediate-reinforcing crossbar 7 provided in a state laterally bridged to the upper frame 6. The glass lid-receiving frame 8 has a band plate part 8a for solving difference in level and a protruded part 8b for partition provided in the central part in the width direction of the upper surface of the band plate part 8a and a glass lid-receiving face having the same plane as the upper face of an inward protruded edge for supporting a glass lid of the upper frame 6 is constituted on the upper face of the band plate part 8a. COPYRIGHT: (C)2007,JPO&INPIT
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