Patent ID: 6857994

Claim:
A spring bar comprising: a spring; two cables 30 fixedly connected to an outside of the spring in a longitudinal direction of the spring and each cable having two connection ends at two ends thereof; two tubes respectively connected to two ends of the spring and a slot 11 defined longitudinally through a wall of each of the tubes, a plurality of positioning recesses defined in two insides defining the slot; two end collars respectively mounted to the two tubes which movably extend through two respective holes of the two end collars, the two connection ends 31 of each cable 30 being fixedly connected to the two end collars 60 ; two handles 70 each having an extension 71 and a positioning hole 711 defined through each of the extensions 71 , two mounting collars 72 respectively mounted to the two extensions 71 and a through hole 721 defined through each of the mounting collars 72 ; and two positioning members 74 each having a spring member 73 which is biased in the mounting collar 72 corresponding thereto, each of the positioning members 74 movably extending through the positioning hole 711 and inserted in the slot 11 , an annular groove 741 defined in each of the positioning members 74 and a width of the annular groove 741 being larger than a thickness of the insides of the slot 11 , the positioning members 74 being positioned in one of the positioning recesses 110 .