| 摘要 |
A supporting structure for a cross arm of a pole is provided to maintain a set length of a cross arm main body by covering a front surface of a knob unit with a press rod of a holder not to protrude the knob unit forward due to a strong wind. A supporting structure for a cross arm of a pole includes a cross arm main body(100) and a holder(200). The cross arm main body includes a main body(110), a pinion, and a pair of extension rods(130). The pair of extension rods linearly move with respect to a gear unit to face each other. The holder includes a fixing body(210) and a press rod(220). The fixing body is positioned at a direct upper part of a rotation axis on one surface of the main body. The press rod is rotatably fixed to an end of the fixing body and is formed to cover a knob unit. |
