Abrégé

The disclosure provides a generally planar wheel, comprising a multi-layer cardboard body having at least one layer of a high-density cardboard sheet sandwiched between at least two layers of low-density cardboard sheet.

Classes IPC  ?

• A63H 17/00 - Véhicules, p. ex. automoteursLeurs accessoires
• A63H 17/26 - Véhicules, p. ex. automoteursLeurs accessoires DétailsAccessoires
• B62K 3/00 - Bicyclettes

Abrégé

Assemblies comprising first and second assembly members attached to one another via a connection arrangement and methods for forming such assemblies.

Classes IPC  ?

• F16B 17/00 - Moyens d'assemblage sans filetage d'éléments structuraux ou parties de machines par pénétration d'une partie d'un élément ou d'une pièce portée par un élément, dans un trou pratiqué dans un autre élément

Abrégé

The present invention provides a cardboard-based unit, comprising one or more substantially planar elements comprising two or more layers of cardboard that are closely associated with one another and being constituted by a formed cardboard panel having a first and second faces; and at least two core-envelope elements comprising enveloping portions of the panel that are wrapped about two or more elongated members such that the panel comes into tight association with said members; the planar elements and the core-envelope elements in the unit are integral with one another.

Classes IPC  ?

• B62K 19/02 - Cadres de cycle caractérisés par le matériau ou la section transversale des éléments du cadre
• B32B 29/00 - Produits stratifiés composés essentiellement de papier ou de carton

Abrégé

The invention provides cardboard-based structures comprising two or more, generally elongated elements angled with respect to one another and being cut out of a multi- layered cardboard-based piece that comprises at least two layers of a single cardboard sheet folded about a longitudinal reinforcing member. The invention further provides frames, preferably human-powered vehicle frames, constructed from structures of the invention, as well as methods for producing structures of the invention.

Classes IPC  ?

• B62K 19/02 - Cadres de cycle caractérisés par le matériau ou la section transversale des éléments du cadre

Abrégé

The invention provides structural elements comprising an elongated internal member and an elongated external member enclosing said internal member, in which a mid-portion enveloping the internal member and being in tight association with the external surface of the internal member, defines, jointly with said internal member, a first, core- envelope sub-structure, while two flanking portions extending from and integral with the mid-portion and facing and contacting one another to jointly define a second, layered sub-structure. The invention further provides methods for manufacturing such structural elements.

Classes IPC  ?

• B62K 19/02 - Cadres de cycle caractérisés par le matériau ou la section transversale des éléments du cadre
• B23B 29/00 - Porte-outils pour outils de coupe non rotatifsBarres ou têtes d'alésageAccessoires des porte-outils