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Sound absorbing guard rail system

Pending Publication Date: 2019-10-10
ROCKWOOL INT AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a new design for a noise absorbing panel used in traffic ways. The panel has a stretch metal netting that can deform when impacted, which makes it very effective at absorbing energy. The netting is designed to have different levels of deformation in different directions, so the panel can absorb higher amounts of energy in certain directions. The panel can also have a structured surface that reflects light in interesting and beautiful ways, depending on the viewer's perspective. This design feat can provide both visual and functional benefits when installed in traffic ways.

Problems solved by technology

In the guard rails with noise-reducing measures mentioned above, the casing in aluminium or transparent materials, such as glass or plastic, is brittle, costly and may not withstand a vehicle impact without breaking apart.

Method used

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first embodiment

[0051]With reference to FIGS. 1 to 4, a sound absorbing guard rail system according to the invention is shown. The guard rail system is installed at a lateral or median side of a road 2 and comprises a series of vertically oriented supporting posts 4. A series of noise absorbing panels 6 are mounted to one side of the supporting posts 4 facing away from the road and a series of longitudinal guard rails 8 are mounted on the other side of the posts 4 facing the road 2. Between the noise absorbing panels 6 assembly profiles 14 (see FIGS. 1 and 2) are provided to ensure the noise absorbing panels 6 are suitably positioned and aligned.

[0052]The noise absorbing panel 6 comprises a noise absorbing material board 10 which is encased in an energy absorbing mesh 12 (see FIG. 3)

second embodiment

[0053]In FIGS. 5 and 6 a sound absorbing guard rail system according to the invention is shown. According to this embodiment, the guard rails 8 are provided with perforated sections 81, 82 to further increase the sound absorbing characteristics of the guard rail system.

[0054]In FIGS. 7a) to c) the absorption of an impact by a guard rail system according to the invention is shown. As vehicle comes from the road 2 and collides with the guard rail 8, as indicated by the arrow in the figures, the posts 4 deflects at ground level and the noise absorbing panel 6 is tilted backwards, i.e. away from the road 2, as well as deformed as the energy in the impact is absorbed in this deformation of the noise absorbing panel 6. As the energy is taken out of the impact the guard rail 8 breaks away from the posts 4 as shown in FIG. 7c).

[0055]Three embodiments of the noise absorbing panel 6 are shown in FIGS. 8-10. Common for these three embodiments is that a noise absorbing material board 10 is enca...

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Abstract

A sound absorbing guard rail system for installation at a lateral or median side of a road, the guard rail system having a series of supporting posts, that are preferably vertically oriented, at least one noise absorbing panel that can be mounted to the supporting posts, and a series of longitudinal guard rails mounted on the side of the guard rail system facing the road. The noise absorbing panel comprise a noise absorbing material which is encased in an energy absorbing material provided with openings.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is the U.S. national stage of PCT / EP2017 / 067073 filed Jul. 7, 2017, which claims priority of European Patent Application 16178822.9 filed Jul. 11, 2016 of which is hereby incorporated by reference in its entirety.FIELD OF THE INVENTION[0002]The present invention relates to a sound absorbing guard rail system for installation at a lateral side of a road, said guard rail system comprises a series of supporting posts, that are preferably vertically oriented, at least one noise absorbing panel that can be mounted to said supporting posts, and a series of longitudinal guard rails mounted on the side of the guard rail system facing the road.BACKGROUND OF THE INVENTION[0003]A guard rail is provided at the lateral side of a road with the object of limiting personal injuries by absorbing the energy of a vehicle veering off the road by catching and slowing down the vehicle. Added to this primary function it is also found attractive...

Claims

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Application Information

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IPC IPC(8): E01F8/00E01F15/04
CPCE01F15/06E01F15/0423E01F8/0058E01F8/007E01F8/00E01F15/04
Inventor EMBORG, MICHAEELJØRGENSEN, KRISTIAN SKOVGAARDDRÖGE, JAN EIKESCHNITZLER, HANS-JÜRGENSØRENSEN, BRUNO KIRKANDERSEN, STEFFENPEDERSEN, LEON SAMSØ
Owner ROCKWOOL INT AS
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