Patent ID: 7100499

Claim:
A strap pressing device for a strap packing apparatus combined with one side of a base of a strap packing apparatus, said strap pressing device comprising: a strap presser having an oval hole in an upper portion, and a curved surface formed in a bottom; an eccentric shaft consisting of a first shaft and a second shaft eccentrically connected to said first shaft, said first shaft pivotally connected to one side of said base, said second shaft positioned in said oval hole and having its outer diameter nearly equal to a smaller diameter of said oval hole, said second shaft moving said strap presser sway eccentrically and rise up quickly, a preset lateral gap formed between said second shaft and the wall of the larger diameter of said oval hole so that said strap presser may be moved up and down eccentrically by said second shaft to enable said curved bottom surface closely contacting an upper surface of said base; and a spring provided to fit around said second shaft in said oval hole to elastically push said strap presser to move bias up and down so as to press said curved bottom surface against an upper surface of said base.