Patent ID: 8545123

Claim:
A ring binder, comprising: a fixed bar ( 1 ) and a moving bar ( 3 ), wherein the fixed bar ( 1 ) is configured to be immovably fixed on a spine plate of a folder; bearing hooks ( 2 ) fixed on an upper surface of the fixed bar ( 1 ); wherein the moving bar ( 3 ) is movably lapped over the fixed bar ( 1 ); such that the moving bar ( 3 ) and the fixed bar ( 1 ) are clamped and connected with each other; the moving bar ( 3 ) being capable of rotating relative to the fixed bar ( 1 ) and sliding along a length direction of the fixed bar ( 1 ); a twisted spring ( 4 ) having two ends and connected between the moving bar ( 3 ) and the fixed bar ( 1 ); and moving shackles ( 5 ) fixed on an upper surface of the moving bar ( 3 ), wherein overhead hooks ( 6 ) for limiting the moving bar ( 3 ) to only slide along the length direction of the fixed bar ( 1 ) are respectively formed on the fixed bar ( 1 ) and the moving bar ( 3 ), and the overhead hooks ( 6 ) on the fixed bar ( 1 ) and the overhead hooks ( 6 ) on the moving bar ( 3 ) are engaged with each other, wherein a clamp hook is respectively arranged on a lower surface of the moving bar ( 3 ) and a lower surface of the fixed bar ( 1 ), and wherein one end of the twisted spring ( 4 ) is respectively connected to the clamp hooks of the moving bar ( 3 ) and the fixed bar ( 1 ), wherein a plastic handle ( 7 ) for pushing the moving bar ( 3 ) is clamped and connected at one end of the moving bar ( 3 ), wherein an inner end face of the plastic handle ( 7 ) and an outer end face of the fixed bar ( 1 ) are each respectively provided with an overlapped portion and are in collision with each other in a fitting mode through the corresponding overlapped portions, wherein first bent saddles ( 8 ) for limiting binder opening travel of the moving bar ( 3 ) are respectively formed on the lower surface of the fixed bar ( 1 ) and the lower surface of the moving bar ( 3 ); the first bent saddles ( 8 ) on the fixed bar ( 1 ) and the first bent saddles ( 8 ) on the moving bar ( 3 ) are respectively extended to the lower surface of the moving bar ( 3 ) and the lower surface of the fixed bar ( 1 ); second bent saddles ( 8 a ) for limiting binder closing travel of the moving bar ( 3 ) are also formed on the lower surface of the moving bar ( 3 ) and lean against lower sides of the overhead hooks ( 6 ) on the fixed bar ( 1 ).