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US 5,333,889 AGranted
Board for sliding, provided with a device for damping vibrations
AssigneeSkis Rossignol S.A.
InventorsYves Piegay, Jean Bauvois
Life of this patent
Estimating the term…
Abstract
This invention relates to a board for sliding over snow, such as a ski, snow surf or the like, provided with at least one vibration damper (9, 10) made of visco-elastic material (3) and plate or other stress element (4). At least one of these dampers (2, 5) has a complex section, for example an upturned U, so that it partially follows different planes (7, 8, 9) of the zone of the structure (1) on which it is added.
Claims23
In a board for sliding over snow, comprising a longitudinally extending body with a sliding surface, an upper surface and two opposite side walls;
- and at least one vibration damper device which comprises at least one plate of visco-elastic material working in shear and at least one stress element with a high modulus of elasticity, said stress element being adhered to said visco-elastic plate, said damper device being positioned locally on the board at a predetermined zone thereof, the improvement comprising
- means for simultaneously damping different modes of vibrations which develop in adjacent zones of the board but in differently oriented planes, there being provided in these zones at least one said damper device, said damper device being shaped and having a surface in contact with the sliding board structure which surface has a shape which partially conforms to the shape of these zones, said damper device having a first portion aligned with said upper surface and a second portion extending from said first portion aligned with one of said side walls and intersecting said first portion, said damper device thereby providing an enveloping form in three dimensions combining at least two different orientations.
In a board for sliding over snow, comprising a main body portion substantially extending in a main longitudinal direction, with:
- a sliding surface intended to slide in contact with the snow, said sliding surface extending substantially in said longitudinal direction,
- an upper outer surface opposite said sliding surface,
- lateral outer sides joining said upper surface to said sliding surface,
- and at least one vibration damper, said vibration damper comprising a laminate of a visco-elastic material and at least one stress element with a high modulus of elasticity, said vibration damper being fixed at a predetermined localized position of said board,
- the improvement wherein said vibration damper comprises means for simultaneously damping different modes of vibrations which develop in adjacent zones of said board but in differently oriented planes, said vibration damper having:
- a first portion extending substantially parallel to said upper outer surface of the board,
- and at least a second portion extending substantially along at least one of said lateral outer surfaces,
- the vibration damper thereby providing an enveloping form in three dimensions combining at least two differently oriented planes.
5 more elements
A board for sliding over now, comprising a longitudinally extending body with a sliding surface, an upper surface and two opposite side walls;
- and at least one vibration damper device which comprises at least one plate of visco-elastic material working in shear and at least one stress element with a high modulus of elasticity, said stress element being adhered to said visco-elastic plate, said damper device being positioned locally on the board at a predetermined zone thereof, the improvement comprising
- means for simultaneously damping different modes of vibrations which develop in adjacent zones of the board but in differently oriented planes, there being provided in these zones at least one said damper device, said damper device being shaped and having a surface in contact with the sliding board structure which surface has a shape which partially conforms to the shape of these zones, said damper device having a first portion aligned with said sliding surface and a second portion extending from said portion aligned with one of said side walls and intersecting said first portion, said damper device thereby providing an enveloping form in three dimensions combining at least two different orientations.
In a board for sliding over snow, comprising a main body portion substantially extending in a main longitudinal direction, with:
- a sliding surface intended to slide in contact with the snow, said sliding surface extending substantially in said longitudinal direction,
- an upper outer surface opposite said sliding surface,
- lateral outer sides joining said upper surface to said sliding surface,
- and at least one vibration damper, said vibration damper comprising a laminate of a visco-elastic material and at least one stress element with a high modulus of elasticity, said vibration damper being fixed at a predetermined localized position of said board,
- the improvement wherein said vibration damper comprises means for simultaneously damping different modes of vibrations which develop in adjacent zones of said board but in differently oriented planes, said vibration damper having:
- a first portion extending substantially parallel to said sliding surface of the board,
- and at least a second portion extending substantially along at least one of said lateral outer surfaces,
- the vibration damper thereby providing an enveloping form in three dimensions combining at least two differently oriented planes.
5 more elements
Dependencies are inferred from the claim text.