ENERGY-ABSORBING SEAT FOR AIRCRAFT Russian patent published in 2017 - IPC B60N2/427 B64D25/04 B64D11/06 F16F7/12 

FIELD: mechanical engineering.

SUBSTANCE: invention is relevant to aircraft building and applies to seats' designs. The energy-absorbing seat consists of framework, two vertical railings rigidly fastened to backrest, two shock-absorbers, two vertical pillars, which lower bases are fastened to platform, and headrest. Platform, where vertical pillars and framework are mounted, is connected with on-floor channel-brackets, which ends are equipped with swivel sliding bars by force of axis and adjusting clamps according to tilt angle and to sector of tilt angle. Rotation axis is common for platform and channel brackets. Leading edge of each vertical railing is provided with C-shaped slot equipped with clamp. H-beam equipped with energy-absorbing element (rod), which is provided with row of holes for moving referenced to pillar, is placed in the said slot. Each vertical railing of framework, which is provided with support made of low-friction- coefficient material for decrease of framework sliding friction referenced to pillar, is rigidly connected to profile and to energy-absorbing element with the aid of sheared element. Shock absorber (cutter) is manufactured in the form of U-shaped plate, mounted into seat railing and envelopes energy-absorbing element with the aid of its U-shaped form.

EFFECT: energy-absorbing seat of decreased weight and of increased shock-absorbing motion stroke upon ground impact.

4 cl, 9 dwg