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US 8,757,596 B2Granted
Guard rail including noise-reducing measures
OwnerThomas Willum Jenseninventor
Life of this patent
Estimating the term…
Abstract
A guard rail is provided with noise-reducing measures and includes a plurality of substantially vertical posts supporting a longitudinal guard rail beam. Furthermore the guard rail is provided with plate-shaped noise-reducing modules attached to the supporting, substantially vertical posts. Advantageously, the guard rail may be perforated so that the sound is allowed to pass into the noise-reducing modules at the rear.
Claims12
A guard rail having noise-reducing measures comprising:
- a plurality of substantially vertical posts (3);
- a longitudinal guard rail beam (2) supported by the plurality of substantially vertical post through arms attached to the posts;
- and
- a noise-absorbing plate (1) attached to and longitudinally extending between each adjacent pair of the plurality of substantially vertical posts (3) at a rear of the longitudinal guard rail beam and extending substantially the entire height of the vertical posts, the noise-absorbing plate comprising a core of noise-absorbing material,
- wherein the longitudinal guard rail beam (2) comprises perforations and sound passes through the perforations into the noise-absorbing plate (1), and
- wherein the noise-reducing measures further comprises a top plate (4) extending substantially the entire length of the longitudinal guard rail beam from the longitudinal guard rail beam to the noise-absorbing plate (1), the top plate being coupled to the longitudinal guard rail beam and the vertical posts, and extending above and covering the arms, the posts and the noise-absorbing plate, and
- wherein the top plate (4) is provided with perforations in the form of punched long perforations so that the top plate (4) substantially has the characteristics of a grating and sound passes through the perforations into the noise-absorbing plate.
4 more elements
A guard rail having noise-reducing measures, comprising:
- a plurality of substantially vertical posts (3);
- a longitudinal guard rail beam (2) supported by the plurality of substantially vertical posts through arms attached to the posts;
- and
- a noise-absorbing plate (1) attached to and longitudinally extending between each adjacent pair of the plurality of substantially vertical posts (3) at a rear of the longitudinal guard rail beam and extending substantially the entire height of the vertical posts, the noise-absorbing plate comprising a core of noise-absorbing material,
- wherein the longitudinal guard rail beam (2) comprises perforations and sound passes through the perforations into the noise-absorbing plate (1), and
- wherein the noise-reducing measures further comprises a top plate (4) extending substantially the entire length of the longitudinal guard rail beam from the longitudinal guard rail beam to the noise-absorbing plate (1), the top plate being coupled to the longitudinal guard rail beam and the vertical posts, and extending above and covering the arms, the posts and the noise-absorbing plate,
- wherein the to plate (4) is provided with perforations and sound passes through the perforations into the noise-absorbing plate, and
- wherein the longitudinal guard rail beam is a sectional plate beam.
5 more elements
Dependencies are inferred from the claim text.