| 主权项 |
1. An archery bow for shooting an arrow, said bow comprising a bow frame extending between a first frame end and a second frame end, said bow frame being a generally rigid frame and having a central region between said ends; a first firing system being joined relative to said first frame end and a second firing system joined relative to said second frame end; said first firing systems including a first spring housing fixable relative to said first frame end and having a first internal passage shaped to receive a first compression spring, said first compression spring extending along a first spring axis between a first forward spring end and a first rearward spring end, said rearward spring end having a first spring cap and said first spring housing including a first rearward opening wherein said first spring cap is exposed on the rearward side of said first spring housing, said first firing system further including a first crank rotatably attached relative to said first spring housing about a first crank axis and having a first spring leg and a first string leg with a first pivot region joining said first spring and string legs, said first spring leg being shaped to engage said first spring cap, said string leg having a first mount to rotatably support a first rotatable bow string support about a first support axis wherein said first support includes a first outwardly facing guide groove for a bow string that is guided therein about said first support axis; said second firing systems including a second spring housing fixable relative to said second frame end and having a second internal passage shaped to receive a second compression spring, said second compression spring extending along a second spring axis between a second forward spring end and a second rearward spring end, said rearward spring end having a second spring cap and said second spring housing including a second rearward opening wherein said second spring cap is exposed on the rearward side of said second spring housing, said second firing system further including a second crank rotatably attached relative to said second spring housing about a second crank axis and having a second spring leg and a second string leg with a second pivot region joining said second spring and string legs, said second spring leg being shaped to engage said second spring cap, said string leg having a second mount to rotatably support a second rotatable bow string support about a second support axis wherein said second support includes a second outwardly facing guide groove for said bow string that is guided therein about said second support axis; said bow string joined between said first and second first rotatable bow string supports wherein when said bow string is pulled from an at rest condition to a full drawn condition said first and second rotatable bow string supports rotate and are urged toward one another thereby rotating said first and second cranks about said first and second crank axes thereby compressing said first and second springs, said first and second springs providing an amount of stored energy to propel an associated arrow when said bow string is released from the full drawn condition. |
