STATIONARY BELAY DEVICE Russian patent published in 2014 - IPC A63B69/00 

FIELD: sports.

SUBSTANCE: stationary belay device comprises a vertical cylinder fixed on the base of with the poorly evaporating fluid (e.g. engine oil) is placed, in which a piston with a vertical thrust is located, connected to the movable roller, and the fixed rollers mounted on the horizontal bracket. The belay rope is passed through the rollers, fixed with its one end in the belay system of the athlete, and with the second it is attached to the horizontal bracket. The cylinder is covered with funnel from above. The cylinder piston is made of two discs with windows slotted in them, the discs are mounted through the sleeves on a vertical axis. In the sleeve of the upper disc two oblique grooves are provided with a horizontal axis passing through them. On the sleeve of the lower disc the fixing bolt with locknut is mounted. In the proposed device, the energy received at the breakdowns and descents of climbers is directed to the liquid mixing and heating followed by cooling, i.e. the rope gripping and abrasion is absent.

EFFECT: improvement of device operation reliability, increasing durability of operation of the belay rope and mechanisms.

2 cl, 3 dwg