To adjust inclination angle for each beam at an installation site even when a ground where a guard fence is installed is a slope or the buried height of a column is not uniformed caused by the irregularities and hardness of the ground and accordingly the installation of the beam is formed differently for each span of columns and also easily perform beam installation and removal operations in a suitable finishing state.
This structure of a guard fence 10 comprises a bar-like beam 20 and a bottomed cylindrical beam fitting part 41 fitting both ends of the beam 20. The beam fitting part 41 is mounted on a support body 30 fixed to a ground P. The fixing of the beam fitting part 41 to the support body 30 is performed by an angle adjusting means capable of adjusting the relative angular position thereof.
| JP6404589 | How to design guard fence columns |
| JP3914432 | CAR STOP |
Tetsuo Fukuda
Tatsuhiko Inukai
Takashi Ishioka
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