Adjustable Angle Paddle
20230331362 ยท 2023-10-19
Inventors
Cpc classification
International classification
Abstract
This invention pertains to paddles such as canoe paddles in which the angular relationship between the paddle handle and paddle blade can be adjusted. With respect to the paddle handle the blade orientation can be straight or angled and locked with an adjustable swivel joint.
Claims
1) A canoe paddle in which the paddle blade may be adjustably angled with respect to the paddle handle.
2) A canoe paddle of claim 1 comprising a handle and blade a cogged swivel joint connector between handle and blade, a bolt and nut assembly through the cogged swivel joint connector to lock the blade into angular position.
3) A canoe paddle of claim 2 in which the paddle blade may be adjustably angled with a locking friction swivel joint.
4) A paddle for use with vessels such as canoes and kayaks in which the paddle blade may be adjustably angled with respect to the paddle handle.
5) A paddle of claim 4 comprising a handle and blade a cogged swivel joint connector between handle and blade, a bolt and nut assembly through the cogged swivel joint connector to lock the blade into angular position.
6) A canoe paddle of claim 5 in which the paddle blade may be adjustably angled with a locking friction swivel joint.
Description
SUMMARY OF THE INVENTION
[0006] The present invention addresses this need with an adjustable cogged swivel joint between the blade and handle. The rower loosens a locking nut on a through bolt, orients the blade in either the straight or angled position, and retightens the locking nut. Loosening the nut enables disengagement of the joint cogs which are then re-engaged when the joint nut is tightened in the new orientation. The through bolt and nut assembly constrains the joint cogs in their engaged condition, and the cogs provide a secure angular or straight relationship between handle and blade. This operation takes but a few seconds, and a paddle that was straight for navigating down a turbulent stream to a lake can almost instantly be converted to its most efficient angled configuration for crossing the lake.
[0007] While this discussion has considered the cogged swivel joint described in this disclosure for achieving canoe paddle angle, other designs are envisioned. For example, the preferred embodiment of the present invention provides for a single blade angle, but the concept can be extended to designs with multiple angle choices. Also, there are ample examples of friction joint designs in commerce that can in principle be employed rather than the cogs of the present invention. Additionally, lever actuation of the mechanism has been demonstrated employing a wedge for the locking function, rather than the bolt and nut of the preferred embodiment. And the invention can be applied for kayak and other vessel use, as well.
BRIEF DESCRIPTION OF THE PREFERRED EMBODIMENT
[0008] 1 canoe paddle [0009] 2 paddle handle [0010] 3 paddle blade [0011] 4 cogged swivel joint connector [0012] 5 locking bolt [0013] 6 locking nut
[0014]
[0015]
[0016]