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1956年成都公路工程学校三年级学生池含倬曾提出一种弯道求心方向架,有一定的实用价值,值得研究推广。这种方向架的主要部分是一个活动框架,如图1所示(详细构造见图9)。框架由四根杆组成,可用竹、木、透明胶或轻质金属制造。四杆当中,BF和BE、AD和DC均为等长。四根杆在A、B、C、D四点用栓联接,尽量使其能够自由转动。同时,AB应等于BG。为便于直线上应用,AD应大于AB。AB和AD的长度可以任意规定,以便利使用。另外在B、E、D、F
In 1956, Chengdu Highway Engineering School, a third-year student, Chi-kuang-ku had put forward a kind of bend-seeking direction frame, which had certain practical value and deserved to be studied and popularized. The main part of such a bogie is an activity framework, as shown in Figure 1 (see Figure 9 for a detailed configuration). The frame consists of four rods and can be made of bamboo, wood, clear plastic or light metal. Four shots, BF and BE, AD and DC are equal length. Four rods in the A, B, C, D four points with bolt connection, try to make it to be free to rotate. At the same time, AB should equal BG. For ease of linear applications, AD should be greater than AB. The length of AB and AD can be arbitrarily defined, to facilitate the use. In addition in B, E, D, F