| 摘要 |
FIELD: construction industry; hinges for doors, gates, etc. SUBSTANCE: hinges have flaps connected with their bodies and bushes. Secured in bodies are rods forming pivoted joints with bushes. One of rods is made in the form of a screw with three-entry groove, other rod is made as stud with tapered base. Each bush has three slots and balls are seated in them. EFFECT: high efficiency. |
