DUAL LOCK Russian patent published in 1995 - IPC

FIELD: car-building industry. SUBSTANCE: lock has base 1 with removable side cover, shtulf 15, drop catch 2, stop catch 8, clamp catch 9, stop catch 10, flexible members 7,17 and retainer 13. Flexible members are formed as cylindrical compression springs. Lock has hole, where one of springs is mounted. Tie-rod is passed through this spring. One end of tie-rod 4 abuts against drop catch 2 end. Other end of tie-rod is provided with thread for thrust nut 7. Stop catch 10 has hub with flats 11,12 for engagement with retainer 13 in "open" or "closed" position. Shtulf 15 has opening for replacement of spring. This opening 16 is closed by plug, which holds retainer spring in compressed state. The drawing is given in the invention description. EFFECT: increased efficiency, wider operational capabilities and enhanced reliability in operation. 2 cl, 1 dwg