| 摘要 |
A protective apparatus for a ground instrument box is provided to absorb an impact due to collision with vehicles by adding a first Impact absorption device and a second Impact absorption device. In a first Impact absorption device(60), a coupling hole(62a) which is made of the steel material and is assembled to be fixed to a front surface(2a) of a concrete support(2) is equipped in a fixing member(64). A plurality of impact absorption members(66) are made of rubber materials having elasticity. A connecting member(62) fixes the fixing member to the concrete support. In a second impact absorption device(80), a case member(82) is fixed to an upper support(70) by a connecting member(82a) as a medium. A pair of impact absorption members(84) are loaded and unloaded to the front side of the case member. The plate member(86) is assembled to the rear side of the impact absorption members. A spring member(87) is assembled between plate members. A buffer member(88) is assembled in order to be inserted to the rear side of the plate member. The spring member(89) supports the rear-side section of the buffer member. A fixing member(85) fixes the impact absorption members and the plate member. |
