BE882333R - ENERGY ABSORBING OBJECT - Google Patents

Description

       

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energy absorbing object, namely a laminate or layered structure with low weight and with an increased damping capacity for mechanical vibrations. In particular, it relates

  
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a honeycomb structure at its core, on which one on either side

  
rigid cover plate, e.g. made of reinforced or non-reinforced plastic, veneer

  
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better damping capacity for mechanical vibrations is now proposed to provide a layer of rubber-like material as an adhesive layer <EMI ID = 5.1>

  
like material and partly due to the friction and deformation

  
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It is also noted that steel cords embedded in rubber impart excellent cushioning properties in such laminates and that these properties improve even further when a metal sheet is used as a glued sheet.

  
An additional advantage of the invention includes the one-

  
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connection (e.g. by vulcanization) has been effected.

  
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such as paper (cardboard), reinforced or non-reinforced plastic, metal foil or sheet, etc ... The shape and cross-sectional dimensions of the empty spaces or cells 3 can be selected depending on the

  
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be chosen to ensure good adhesion to the slat sections it comes into contact with, to the embedded fiber bundles as well as to the contact surfaces with the rigid cover plates

  
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embedded fiber bundles include some elastomeric character retention in order to achieve the intended damping effect in the laminate.

  
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suitable, such as elastic epoxy adhesives with high elongation.

  
In order to compensate for the loss of strength (by applying rubber-like material compared to rigid adhesive layers) it will often be advisable to additionally

  
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contemplated by the current patent application.

  
The twisted fiber bundles in the adhesive layer also have

  
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are therefore glass fibers, carbon fibers, drilling fibers, polyamide fibers, polyaramide fibers, polyester fibers and / or metal fibers or

  
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plain of the laminate. If fiber bundles are used in the adhesive layer above and below the core layer, they can be oriented equally or differently. For example, the direction of the cords in layer 4 may be perpendicular to the direction of the cords in layer 5. In some cases it may be useful to choose cords

  
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can also be introduced in tissue form, thereby running in warp and / or weft. The cords can also contribute to the strength of

  
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in other shapes than a flat plate, eg ala curved plate, as a plate with variable thickness over its surface, as a profile or tube.

  
These objects can be used, for example, as support elements for vibration-sensitive instruments and equipment, for example in engine rooms, in aircraft or ships, for walls of loudspeakers, sound boxes, etc. In general, the lightweight laminate according to the invention will be particularly suitable for applications.

  
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pinging requirements. In addition to a requirement combination of strength and weight damping, if it is desired to realize a certain resilience in the object under bending load, such as, for example, in skis, the concept according to the invention is particularly advantageous.

  
As a special application of the invention, transverse

  
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structure 1, an analog rubber sheet 5 is provided. On top

  
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connected.

  
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The ski is assembled in a very simple and cheap manner in a mold with the desired final shape for the ski and consolidated into a tight structure. For this purpose, the usual pre-formed steel edges 14 are placed at the bottom of the mold and in between the per se known custom-cut polyetylene sliding sole 12. A rubber sheet is placed on the steel edges 14 and the sliding sole 12 (possibly reinforced, eg wet cords) and the

  
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ture 1 (Hexel) is inserted and which is completely re-coated with a steel cord 6 comprising rubber sheet 5 which in turn is covered with a second aluminum or steel plate 9. This plate 9 can, if desired, be pre-printed on its top, painted, or varnished or provided with another finishing layer (or motif).

  
The mold is closed and closed for a sufficient period of time.

  
 <EMI ID = 24.1> of the different layers. After this consolidation treatment, the ski can therefore be completely removed from the mold.

  
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and 11 (or 4 and 11) as one sheet comprising a longitudinal zone 4 and 4, respectively. 5 in the middle at the width of the ski (in which steel cords 6 are embedded, which zone is delimited on both sides

  
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equal to the height of the upright edges 11. In this case one can eg start with placing plate 9 at the bottom of the mold

  
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bring with the edges 11 upright against the side flanks of the mold The honeycomb structure 1 is then inserted and the whole

  
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ments 4, 5 or 4 plus 11 resp. 5 plus <1> 1 jugs are manufactured in a classic manner by slit-texturing. A pair of parallel steel cords 6 is then inserted herein during longitudinal extrusion.

  
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(steel cord in the warp or optionally in the weft or possibly in both directions).

  
In order to increase the strength of the ski, it can be

  
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11 cp another way to strengthen.

  
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or otherwise apply local reinforcements in a form other than twisted fiber bundles.


    

Claims (1)

<EMI ID = 32.1> <EMI ID = 33.1> tviste fiber bundles are steel cords. <EMI ID = 34.1>