Abstract

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.

IPC Classes  ?

• A63H 17/00 - Toy vehicles, e.g. with self-driveAccessories therefor
• A63H 17/26 - Toy vehicles, e.g. with self-driveAccessories therefor DetailsAccessories
• B62K 3/00 - Bicycles

Abstract

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

IPC Classes  ?

• F16B 17/00 - Fastening means without screw-thread for connecting constructional elements or machine parts by a part of or on one member entering a hole in the other

Abstract

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.

IPC Classes  ?

• B62K 19/02 - Cycle frames characterised by material or cross-section of frame members
• B32B 29/00 - Layered products essentially comprising paper or cardboard

Abstract

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.

IPC Classes  ?

• B62K 19/02 - Cycle frames characterised by material or cross-section of frame members

Abstract

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.

IPC Classes  ?

• B62K 19/02 - Cycle frames characterised by material or cross-section of frame members
• B23B 29/00 - Holders for non-rotary cutting toolsBoring bars or boring headsAccessories for tool holders