Patent ID: 7328776

Claim:
A brake device for a strap-real frame assembled on a frame body of said strap-real frame, said brake device braking an inner and an outer disc pivotally filled on a horizontal shaft of said frame body, said brake device comprising: a swinging rod having one end pivotally connected with said frame body located above said horizontal shaft, said swinging rod actuated to swing downward by its own gravity: and at least one brake block disposed at an intermediate portion of said swinging rod, said brake blocks moved downward together with said swinging rod to push against the outer circumferential edge of said inner disc, said brake blocks stopping said inner disc from rotating, wherein said swinging rod has its free end fixed thereon with a U-shaped clamping base having its opposite sides respectively bored with a comparatively large insert hole for an outer end of said swinging rod to be inserted therethrough, a spring diagonally fastened between the opposite lower sides of said clamping base, said spring obliguely and elastically pressed on said swinging rod, said spring elastically clamping the end of a packaging strap passing through between an intermediate transverse plate of said U-shaped clamping base and said swinging rod.