Patent ID: 8432290

Claim:
A force measuring ratchet tie down, comprising a body assembly ( 1 ), a handle ( 2 ), a teeth stop board ( 5 ), a catch ( 6 ) and a scroll ( 3 ), in which the handle ( 2 ) is connected with the body assembly ( 1 ) through the scroll ( 3 ), a binding belt having a fixable outer end is connected to the body assembly ( 1 ), another binding belt having a fixable outer end is rolled on the scroll ( 3 ), a ratchet ( 4 ) is fixed on the scroll ( 3 ), the body assembly ( 1 ) is movably connected with a teeth stop board ( 5 ) the end of which could be embedded among the teeth of the ratchet ( 4 ), and the handle ( 2 ) is movably connected with a catch ( 6 ) the end of which could be embedded among the teeth of the ratchet ( 4 ), characterized in that, a sensor ( 7 ) is placed at a forced part of the tie down, the sensor ( 7 ) is linked with a signal processing circuit ( 8 ) and could generate a signal corresponding to the size of the tensioning force of the binding belt when the tie down is in operation, and a display device is connected to the signal processing circuit ( 8 ).