04-17-2020, 04:14 PM
Craig,
I'd say that the rod is the same lever, to balance the equation you have your body as the pivot point about which you apply a force at the point where your rod holding arm reaches the rod. The fish applies a force at the tip, but it has two components one is down the line as a tension the other is balanced by your rod arm. The tension force goes into your reel and your other hand applies a force to the reel handle, which is a short lever, but magnifies your strenght as it creates a torque into the primary shaft, which is transferred to that gear, which mates with another gear and difference in diameter or number of teeth gives you another mechanical advantage, hence if you want to call that a lever... (now some reels have multiple gear reduction, hence the ocean reels that give you more power to wench in big fish) but for your purpose let's go simple single gear set, so the next transfer of force is between the spool and bail, and the bail redirects most of the tension to the spool, where the two forces are balanced. (torque from reel handle to tension from line) That's my take of the system...But I didn't draw out the free body diagram so who knows maybe I missed something... There are some other components of force that are applied to your hip as you use it as a pivot point... but anyway I think that is close to covering your system... Now what if you put an electric motor on your reel, how are the forces changed? I still want to put a simple electric reel together similar to the old style spring take up fly reels... I think they would be a blast for ice fishing and as a fly reel... Later Jeff
I'd say that the rod is the same lever, to balance the equation you have your body as the pivot point about which you apply a force at the point where your rod holding arm reaches the rod. The fish applies a force at the tip, but it has two components one is down the line as a tension the other is balanced by your rod arm. The tension force goes into your reel and your other hand applies a force to the reel handle, which is a short lever, but magnifies your strenght as it creates a torque into the primary shaft, which is transferred to that gear, which mates with another gear and difference in diameter or number of teeth gives you another mechanical advantage, hence if you want to call that a lever... (now some reels have multiple gear reduction, hence the ocean reels that give you more power to wench in big fish) but for your purpose let's go simple single gear set, so the next transfer of force is between the spool and bail, and the bail redirects most of the tension to the spool, where the two forces are balanced. (torque from reel handle to tension from line) That's my take of the system...But I didn't draw out the free body diagram so who knows maybe I missed something... There are some other components of force that are applied to your hip as you use it as a pivot point... but anyway I think that is close to covering your system... Now what if you put an electric motor on your reel, how are the forces changed? I still want to put a simple electric reel together similar to the old style spring take up fly reels... I think they would be a blast for ice fishing and as a fly reel... Later Jeff
When things get stressful think I'll go fish'en and worry about it tomorrow!