| 摘要 |
<p>PURPOSE:To retard deformation of fixing frame even when it is secured with screws to a burried box by means of a motor driver by rising the joint parts of the opposite side pieces of the fixing frame made of metal having high bending limit obliquely upward whereas drooping the drooping pieces of casing downward from the outer edges of the opposite side pieces. CONSTITUTION:Joint parts of the opposite side pieces 1b of a fixing frame 1 with the opposite end pieces 1a are risen obliquely upward whereas drooping pieces are drooped downward from the outer edges of the opposite side pieces 1b in order to enhance strength against secondary moment to be applied by a motor driver or the like thus retarding deformation of the fixing frame 1. The fixing frame 1 is made of metallic material having high bending limit, e.g. SPCC1/4H, SUS430, etc. There is no significant difference in the modulus of bending elasticity so long as a steel plate is employed.</p> |
