초록 ▼

A fin system for surfboards, wind surfers or similar sporting equipment having an elongated channel extending lengthwise underneath the board. The fin is adjustable in the channel by the interaction of a resilient finger cut out of the fin base with a ribbed inner surface of the channel. The fin is

A fin system for surfboards, wind surfers or similar sporting equipment having an elongated channel extending lengthwise underneath the board. The fin is adjustable in the channel by the interaction of a resilient finger cut out of the fin base with a ribbed inner surface of the channel. The fin is totally removable from the channel, and when inserted, moves along the channel by pressure applied to the base of the fin. Releasing the pressure on the base causes the resilient finger to engage a notch in the ribbed surface and securely positions the fin at the desired point in the channel.

대표청구항 ▼

A fin attachment for surfboard and sailboards comprising: means defining the ear undersurface as a channel along the longitudinal axis of the board wherein said channel has a ribbed inner surface; a resilient finger provided on the base of the fin for coacting with said ribbed surface to slidably po

A fin attachment for surfboard and sailboards comprising: means defining the ear undersurface as a channel along the longitudinal axis of the board wherein said channel has a ribbed inner surface; a resilient finger provided on the base of the fin for coacting with said ribbed surface to slidably position and secure the fin along the longitudinal axis of said ribbed surface of such channel; said fin provided with a slot cut at an angle to the base of the fin to form said resilient finger; and means to receive and retain said fin base in said channel which allows for longitudinal movement of the fin in the channel.