| 摘要 |
PURPOSE:To improve a vibro-proof action, by making a strutting unit lying between side walls at the base block of an end bracket so adjustable as to absorb thermal expansion in the said bracket in an automated manner. CONSTITUTION:A strutting unit 7 is set to the base block concave side wall 1b of a base block and the external end of an end bracket 6. This strutting unit 7 is divided into four parts, a strutting bar body 8, a turnbuckle apparatus 10, a revolving device 11 driving the basic material 9 and the turnbuckle apparatus 10, and a command device 12 performing revolving command of this revolving device. When the end bracket 6 is extended long by heat, flexture is produced in an elastic basic metal 9 via the strutting bar body 8 and the turnbuckle apparatus 10. If so, the command device 12 gets operated, emitting a command signal to the revolving device 11, and drives the turnbuckle apparatus 10 so as to cause its over-all length to be shortened. |
