B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 19/32 (2006.01) B65D 19/22 (2006.01) B65D 77/06 (2006.01)
Patent
CA 2426999
The invention relates to a pallet container (10) comprising a thin-walled inner container (12), preferably consisting of a thermoplastic plastic, for storing and transporting liquid or free-flowing filling materials, a tubular framework of metal bars, which closely surrounds the plastic container (12) and acts as a support shell (14) and a base pallet (16), on which the plastic container (12) rests and to which the support shell (14) is connected in a fixed manner. In order to receive official certification, the pallet container (10) must undergo various certification tests, such as a compression pressure test, interior pressure test or a drop test. During the drop test, the vertical lattice bars (20) are often wrenched out of or shear away from their anchorage on the base pallet (16). According to the invention, to prevent such detrimental effects, the tubular bars (18, 20) of the support shell (14) are provided with specific features in the event of the container falling, said features allowing a plastic deformation of the support shell (14) at specific predeterminable points, whilst preventing the individual tubular bars (20) from shearing or being wrenched out of their anchorage. According to one embodiment of the invention, the features allowing the plastic deformation of the support shell take the form of a flexure point coupled with a reduced cross-section of the bars.
L'invention concerne un conteneur à palettes (10), comprenant un contenant interne (12) à parois minces, de préférence en plastique thermoplastique, pour le stockage et le transport de marchandises de remplissage liquides ou coulantes, une armature tubulaire formée de barres métalliques et entourant étroitement le contenant en plastique (12) en formant une enveloppe de support (14), ainsi qu'une palette de base (16) sur laquelle repose le contenant en plastique (12) et à laquelle l'enveloppe de support (14) est raccordée de manière fixe. Pour que l'on obtienne une autorisation administrative, le conteneur à palettes (10) doit résister à différents tests d'homologation, comme l'essai à la compression, l'essai de pression intérieure ou l'essai de chute. Or, les barres en treillis verticales (20) sont rompues ou arrachées de leur ancrage sur la plaque de base (16) lors de l'essai de chute. Pour éviter de tels effets préjudiciables, l'invention prévoit des mesures particulières concernant les barres tubulaires (18, 20) de l'enveloppe de support (14) en cas de chute du conteneur, ces mesures permettant une déformation plastique de l'enveloppe de support (14) au niveau de certains points prédéfinis, sans rupture ou arrachage de barres tubulaires individuelles (20). Selon un mode de réalisation de l'invention, la déformation plastique de l'enveloppe de support est réalisée sous forme de point de pliage avec réduction de la section tubulaire.
Marks & Clerk
Mauser-Werke Gmbh
Mauser-Werke Gmbh & Co. Kg
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