| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve rigidity of a handle portion by eliminating the joint surface of synthetic resins and metals from the handle portion. <P>SOLUTION: A left handle portion 51 includes a handle portion upper plate 53, a handle portion lower plate 54, a handle portion front plate 55, a handle portion left plate 56, a handle portion right plate 57, and a handle portion partition plate 58. Each of the handle portion upper plate 53 to the handle portion partition plate 58 is made of a synthetic resin integrally molded on a top plate 7 and is provided only on the top plate 7. Thus, since the joint surface of the synthetic resins and metals is eliminated from the left handle portion 51, the rigidity of the left handle portion 51 is improved. <P>COPYRIGHT: (C)2011,JPO&INPIT |
