Guard rail construction
AssigneeNederladnse Organisatie voor Toegepast-Natuurwetenschappelijk on-Derzoek Tno
InventorsLaurentius Maria J. A. Hoebergen, Frederik Johan Wiltink
Life of this patent
Estimating the term…
Abstract
A guard rail construction comprises support elements to be provided at a side of a road and a guard member attached hereto, wherein, when a vehicle touches the guard member in and adjacent the collision point thereof, one or more support elements can pivot in rearward direction relative to the road about a pivot point and can absorb at least a part of the collision energy. The guard rail construction can pivot in rearward direction to such an extent that it can be supported on the ground by a support point. The angle φ between the line through the pivot point and the collision point and the line through the pivot point and the support point is greater than 90°.
Claims14
A guard rail construction for use at an outer edge of a road, the guard rail construction comprising:
- a guard member, the guard member defining a collision point;
- a support element attached to the guard member, the support element being supportable on a substrate such that the support element is pivotable in a rearward direction relative to the outer edge of the road from an upright position about a pivot point to such an extent that the support element is supported on the substrate at a support point, wherein the support point is arranged in a higher position relative to the substrate than the pivot point when the support element is in the upright position and an angle between a line through the pivot point and the collision point and a line through the pivot point and the support point is greater than 90°, the pivot point being formed through the deformation of a weakening in the support element;
- and
- a deformable element provided on the support element for at least partially absorbing collision energy, the deformable element being disposed behind or in a vertical plane which extends through the pivot point perpendicular to the substrate.
Dependencies are inferred from the claim text.