TRAINING APPLIANCE FOR STUDYING LAWS OF PHYSICS Russian patent published in 2008 - IPC G09B23/06 

FIELD: training appliances, namely, training appliances for studying laws of mechanics.

SUBSTANCE: training appliance contains a treadmill, made in form of double-T chute with a transparent front wall and measuring scale fastened on it and with longitudinal magnetic strips on external surface of back wall, and moving carriage mounting inside the chute on a cross connection which carriage has flags, side rotary holders and magnetic strips on its base, a rope with load on its end thrown over a pulley, carriage position indicators, starting device, buffer, pointer, protractor. In accordance to the invention, training appliance is additionally provided with digital command and measuring block, a set of loads made with varying mass, a load made in form of a plate with apertures for fastening on flags of carriage, with beam apertures and a hook, plummets made in form of balls of various diameters held on threads. The buffer is fastened on cross connection and made in L-like shape, on its horizontal shelf magnetic strips, interacting with magnetic strips, positioned on cross connection, are fastened, and damping element is fastened on vertical shelf. Starting device includes platform, base of which is provided with magnetic inserts, sockets on face side of the platform, a holder, on which electric magnet with core, winding and spring is fastened. Electric magnet is provided with plugs or connector and sockets for connection to power supply and to digital commanding and measuring block and block connectors. To determine position of the carriage, optical electrical sensor is used, body of which is held on a board, base of which is provided with magnetic inserts. Sensor body is [-shaped with shelves. On internal surfaces of horizontal shelves apertures are made for placement of optical elements-diodes, and on external surface of upper shelf an aperture is made for placement of optical element - light diode. All optical elements interact with digital commanding and measuring block, platform with stabilizer and elements for fastening plummets, pulley and rope with a set of loads, thrown over aforementioned pulley.

EFFECT: increased reliability and increased comfort of usage, simplified construction.

18 dwg