B - Operations – Transporting – 68 – G
Patent
B - Operations, Transporting
68
G
B68G 9/00 (2006.01) B68G 7/02 (2006.01)
Patent
CA 2251044
A spring unit comprises a continuous coil spring (5) contained within a sleeve (26) of strong, yet flexible, material. The unit is produced by providing a folding attachment device (2) having oppositely inclined spaced walls (13, 14) which converge from a feed end (3) to an outlet end (4), and simultaneously drawing the flexible material and the coil spring through the folding attachment device from the feed end to the outlet end with the spaced walls acting to fold the material over the coil spring and to apply a substantially uniform compressive force to the coil spring. As the material and the spring are drawn through the outlet end (4), overlapping edges of the flexible material are joined together to complete the spring unit.
L'invention concerne un ensemble ressort qui comprend un ressort hélicoïdal continu (5), contenu dans une gaine (26) constituée d'un matériau résistant mais souple. L'ensemble ressort est fabriqué de la façon suivante: un dispositif (2) de fixation pliable, qui est fourni, a des parois (13, 14) espacées inclinées en sens contraire, qui vont convergeant depuis une extrémité alimentation (3) vers une extrémité sortie (4); le matériau souple et le ressort hélicoïdal sont tirés simultanément à travers le dispositif de fixation pliable depuis l'extrémité alimentation vers l'extrémité sortie, les parois espacées agissant de manière à plier le matériau sur le ressort hélicoïdal et à appliquer une force de compression sensiblement uniforme sur le ressort hélicoïdal. A mesure que le matériau et le ressort sont attirés vers l'extrémité sortie (4), des bords de recouvrement du matériau souple se rejoignent pour achever l'ensemble ressort.
Ridout & Maybee Llp
Slumberland Plc
LandOfFree
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