| CPC F16B 7/042 (2013.01) [F16B 7/182 (2013.01); A63B 5/11 (2013.01)] | 15 Claims |
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1. A joint structure for connecting two hollow frame tubes in sporting equipment, the joint structure comprising:
a first tube and a second tube comprising a shell, wherein:
a sleeve part is arranged at one end and a diameter of the sleeve part is less than a diameter of the first tube in the vicinity of the sleeve part,
a receiving part is arranged at one end of the second tube,
a sleeve part hole is arranged on the sleeve part,
a receiving part hole is arranged on the receiving part,
the sleeve part is configured to fit into the receiving part so as to define a position wherein the sleeve part hole and the receiving part hole converge,
the joint structure comprises a locking arrangement comprising an elongated spring strip that is bent into a first wing and a second wing,
the spring strip is inside of the tubes, and
a holding part that is configured to fit at least partly into said converging holes, and
wherein the spring strip is arranged at least partly inside the sleeve part and is open toward the first tube when the locking arrangement is connecting the tubes,
wherein near an end of the first wing is a wing hole, and
wherein the holding part comprises a first connecting element and a second connecting element, wherein
the first connecting element comprising a partly cone-like head and a shaft, and the first connecting element is configured to be inserted inside of the sleeve part such that the shaft is arranged inside of the wing hole,
the second connecting element is arranged at least partly outside the tubes,
the first connecting element comprises a connecting hole configured and arranged to run through the head and through at least part of the shaft, and
the second connecting element is configured to be fixed to the connecting hole such that the shell of the second tube and the shell of the first tube is arranged between the second connecting element and the head of the first connecting element.
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