Lock for slide adjustment of boat seat or table top
First Claim
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1. A blocking mechanism for a slidably adjustable boat seat or table top, comprising:
- a first generally rectangular rigid plate member adapted for attachment to the underside of the seat or table top;
a second generally rectangular rigid plate member adapted for attachment to a supporting surface;
said first plate member having two elongate opposite edges curved underside to provide parallel tracks;
said second platte member having a series of spaced-apart recesses along one edge slidably engaged in one of said tracks and an opposite smooth edge slidably engaged in the other track;
an elongated rod having a series of teeth therealong axially rotatably mounted in said one track;
a spring rotatably biasing said rod so the rod teeth engage said recesses; and
a handle attached to said rod extending outward beyond the one edge of said first plate member for manually rotating said rod to move the rod teeth out of engagement with the recesses in said second plate member.
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Abstract
For a slidably adjustable boat seat or table top, a first plate member for carrying a seat or table top has a pair of underside tracks along parallel outer edges which are slidably engaged or mated with edges of a supporting plate member. One edge of the supporting plate has a series of recesses and there is a cam toothed rod mounted in the mating track which is rotatably spring-biased to rotate the rod to bring the teeth and the recesses into engagement to lock the plates together and a lever handle attached to the rod is provided to manually rotate the rod to disengage the teeth for slidably adjusting the seat position.
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Citations
6 Claims
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1. A blocking mechanism for a slidably adjustable boat seat or table top, comprising:
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a first generally rectangular rigid plate member adapted for attachment to the underside of the seat or table top; a second generally rectangular rigid plate member adapted for attachment to a supporting surface; said first plate member having two elongate opposite edges curved underside to provide parallel tracks; said second platte member having a series of spaced-apart recesses along one edge slidably engaged in one of said tracks and an opposite smooth edge slidably engaged in the other track; an elongated rod having a series of teeth therealong axially rotatably mounted in said one track; a spring rotatably biasing said rod so the rod teeth engage said recesses; and a handle attached to said rod extending outward beyond the one edge of said first plate member for manually rotating said rod to move the rod teeth out of engagement with the recesses in said second plate member. - View Dependent Claims (2, 3)
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4. A locking mechanism for a slidably adjustable boat seat or table top, comprising:
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a generally rectangular rigid plate member adapted for attachment to the underside of the seat or table top; a generally rectrangular rigid plate member adapted for attachment to a supporting surface; one of said plate members having elongated tracks formed on two opposite edges; the other of said plate members having a series of spaced-apart recesses along one edge slidably engaged in one of said tracks and an opposite smooth edge slidably engaged in the other track; an elongated rod having teeth therealong axially rotatably mounted in said one track; a spring rotatably biasing said rod so the rod teeth engage said recesses; and a handle attached to said rod extending outward from said one track for manually rotating said rod against the spring bias to move the rod teeth out of engagement with said recesses. - View Dependent Claims (5, 6)
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Specification