PNEUMATIC ROLLER Russian patent published in 2016 - IPC A63G17/00 

FIELD: games; sports.

SUBSTANCE: invention provides higher safety and manufacturability of pneumatic roller, unifies and broadens functional capabilities. Summary of technical solution consists in fact that in pneumatic roller consisting of pneumatic chamber ring, equipped on inner surface with rigid circular guides for seats with roller supports, guide is made in form of looped metal pipe, equipped at level of tube diameter with system of trundles pairs, equally spaced from looped tube lengthwise mirror plane, pneumatic chamber ring is made in form of system of pneumatic chambers with internal diameter comparable with looped tube diameter folded in diameter and locked in pairs by flexures at trundles, roller supports are made in form of single-cavity hyperboloids with working surface under looped tube diameter. Cogs are equipped with replaceable telescopic design bushings, cogs for fixation of bending of each pneumatic chamber on right prevent cogs for fixation of bending of each pneumatic chamber on left or cogs for fixation of bending of each pneumatic chamber on right lag behind cogs for fixation of bending of each pneumatic chamber on left.

EFFECT: invention can be used as a gymnastic apparatus for year-round tobogganing.

1 cl, 1 dwg