초록 ▼

A kneeboard is provided with a pair of retractable fins which are operated by a control knob mounted on the board in front of the user\s knees. The control knob is connected to the fins by a pair of cables. The fins can be raised or lowered simultaneously by sliding the control knob forwardly or rea

A kneeboard is provided with a pair of retractable fins which are operated by a control knob mounted on the board in front of the user\s knees. The control knob is connected to the fins by a pair of cables. The fins can be raised or lowered simultaneously by sliding the control knob forwardly or rearwardly.

대표청구항 ▼

A kneeboard comprising an elongated body having top and bottom surfaces and front and rear end portions, a fin movably mounted in the rear end portion of the body, the fin being movable between a lowered position in which it extends downwardly below the bottom surface of the kneeboard and a raised p

A kneeboard comprising an elongated body having top and bottom surfaces and front and rear end portions, a fin movably mounted in the rear end portion of the body, the fin being movable between a lowered position in which it extends downwardly below the bottom surface of the kneeboard and a raised position, and operating means mounted on the front end portion of the body for moving the fin from its lowered position to its raised position, the operating means comprising a channel-shaped bracket mounted in the body, a slide slidably positioned within the channel, a knob positioned above the channel, and locking means on the knob for engaging the slide and retaining the slide in a desired position within the channel, the cable being secured to the slide, whereby movement of the slide within the channel retracts the fin from its lowered position toward its raised position.