US Patent 9931549 Weighted golf club head having stress-relieving tubes

A golf club head comprising a body, an elevated weight bar, and a plurality of carbon tubes is disclosed herein. The body comprises a hollow interior, a face section, a sole section, and a crown section, and the elevated weight bar bridges at least a portion of the sole and may be formed separately from the rest of the body and then affixed to the body by welding or a mechanical fastener. In one embodiment, each of the carbon tubes extends from the crown section and terminates at the elevated weight bar, while in another embodiment each of the carbon tubes extends from the crown section to the sole section and passes through the elevated weight bar without making contact with the floating weight bar.