Quasi-isotropic sandwich structures

E - Fixed Constructions – 04 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E04C 2/36 (2006.01) E04C 2/26 (2006.01)

Patent

CA 2751290

A quasi-isotropic sandwich structure is provided for resisting loads along multiple axes. The structure includes a core material sandwiched by fiberglass reinforcements. Fiberglass rovings are inserted through the structure such that the rovings are oriented along three axes, with adjacent axes separated by approximately 120°. Machines and methods for forming the structures are also disclosed. In one case, a machine having a single stitch head is reconfigured in each of three passes of the material to form the sandwich structure. In other cases, a machine having three stitch heads is used to form the structure with a single pass of the material. In some embodiments, the machine includes an indexing stitch head oriented at approximately 0° and two stationary stitch heads oriented at approximately -60° and +60° with respect to the machine direction. In other embodiments, the machine includes three stationary stitch heads oriented at approximately 90°, -30°, and +30°.

La présente invention a pour objet une structure en sandwich quasi-isotrope destinée à des charges résistantes le long d'axes multiples. La structure comprend un matériau central pris en sandwich par des armatures en fibre de verre. Des stratifils en fibre de verre sont insérés à travers la structure de telle sorte que les stratifils soient orientés le long de trois axes, les axes adjacents étant séparés d'approximativement 120°. La présente invention concerne également des machines et des procédés permettant de former les structures. Dans un cas, une machine ayant une tête de piquage unique est reconfigurée dans chacune des trois passes du matériau pour former la structure en sandwich. Dans d'autres cas, une machine ayant trois têtes de piquage est utilisée pour former la structure avec une seule passe du matériau. Dans certains modes de réalisation, la machine comprend une tête de piquage d'indexage orientée à approximativement 0° et deux têtes de piquage stationnaires orientées à approximativement -60° et +60° par rapport à la direction de la machine. Dans d'autres modes de réalisation, la machine comprend trois têtes de piquage stationnaires orientées à approximativement 90°, -30°, et +30°.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Quasi-isotropic sandwich structures does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Quasi-isotropic sandwich structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quasi-isotropic sandwich structures will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1573677

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.