1. Field of the Invention
The present invention relates generally to water craft mooring or tethering devices and, more specifically, to such a device which is capable of storing and dispensing variable lengths of mooring line and which provides positive locking of the line so as to maintain a water craft in a fixed position relative to another object such as a dock, pier, or another vessel.
2. Description of the Prior Art
Typically a boat or other water craft is secured in a stationary position by tying the frame of the craft to a fixed mooring facility such as a dock or pier with a rope or other type mooring line. The craft must be equipped with a sufficient length of line to enable it to be secured under a variety of mooring conditions. Such factors as the proximity and dimensions of the mooring facility will determine the length of line required to secure the craft in a given situation. The length of the mooring line must be adjustable based upon the requirements imposed by a wide variety of mooring conditions. Rope or line which is not being used to secure the craft should be stowed on board the water craft in a neat and orderly fashion. A mooring line which is kept coiled or loosely stored in the bottom of the craft may become knotted and/or entangled with passengers, cargo and other equipment on board the craft.
In recent years, the so-called “personal water crafts” such as the Sea-Doo® manufactured by Bombardier, Inc., and the Waverunner® manufactured by Yamaha, Inc. have become increasingly popular. These power craft provide some of the feel or experience of both motor powered water craft and skis. A number of these craft are intended to be operated by a single user with perhaps one passenger. As a result, storage space is severely limited. Because of the small, compact nature of these craft and the general lack of available storage space, these craft have not, in the past, generally been equipped with any satisfactory tie down or mooring accessory. While larger boats might be able to accommodate a variety of relatively complicated winches and take up reels or on-deck cleats, the personal water craft of the above type continues to have a need for a small, relatively uncomplicated and compact tie down accessory.
A need exists, therefore, for a device which can be affixed to a water craft, including a personal water craft of the Sea-Doo® variety, which is capable of storing a sufficient quantity of mooring line and dispensing the line in variable lengths.
A need also exists for such a mechanism which can be affixed to a personal water craft which is capable of reliably and repeatably extending and retracting a tethering line while simultaneously providing positive locking of the tether once a desired length of line has been payed out.
The mooring device constructed in accordance with the present invention provides a convenient, compact and effective means of storing and dispensing line used to secure a water craft in a desired location. The device includes a spring loaded payoff reel mounted on a planar surface of the water craft for dispensing a mooring line. A line passage hole is provided in the planar surface of the water craft adjacent the payoff reel for receiving the mooring line. A locking mechanism comprising a pair of inner and outer nested cylinders is mounted within the line passage hole, each of the nested cylinders having a rear cylinder sidewall provided with a line passage aperture through which a free end of the mooring line passes. The inner nested cylinder is rotatably mounted relative to the outer nested cylinder. The inner nested cylinder is movable between an unlocked position in which the rear cylinder wall apertures are aligned and the mooring line freely travels to allow the mooring line to freely unwind from the payoff reel and a locked position in which the apertures are misaligned and the mooring line is clinched between the rear cylinder sidewalls. When the device is mounted within the line passage hole in the planar surface of the water craft, an exposed end of the inner nested cylinder is exposed for manual actuation and the mooring line is exposed for extension to a mooring structure. Preferably, the manual actuation of the exposed end of the inner nested cylinder is accomplished by a user grasping and rotating the inner cylinder relative to the outer cylinder
In a particularly preferred form of the invention, the outer nested cylinder has a mounting flange integrally fixed on an outer cylindrical sidewall thereof, the mounting flange being provided with a plurality of fastener openings. The mounting flange is received on the inner planar surface of the water craft peripheral to the line passage hole. A mating keeper plate is mounted on an outer planar surface of the water craft peripheral to the line passage hole. The keeper plate also has a plurality of fastener openings which are alignable with the openings on the mounting flange for receiving mating fasteners. For providing the movement between the unlocked and locked positions the outer nested cylinder is provided with a cam opening and the inner nested cylinder is provided with a mating cam, whereby the cam travels in the cam opening as the inner nested cylinder is rotated to move the locking mechanism between the unlocked and locked positions. In a preferred embodiment of the invention, the cam extends perpendicular to the outer cylindrical sidewall of the inner nested cylinder and the cam opening provided in the outer nested cylinder is an elongate slot.
A method of mooring a water craft is also shown in which the previously described tie up device is mounted on a water craft and line is payed out through the aligned apertures of the rear cylinder sidewalls of the nested cylinders. Once the desired length of line has been fed out, a user rotates the inner nested cylinder relative to the outer cylinder so that the cylinder apertures are misaligned and the mooring line is clinched between the rear cylinder sidewalls to thereby rotationally lock a given length of paid out line. The operation is reversed by simply rotating the inner nested cylinder in the opposite direction to again allow free travel of the line through the now aligned cylinder apertures so that the spring action of the payout reel is allowed to retrieve the paid out line onto the reel.
Additional objects, features and advantages will be apparent in the written description which follows.
As shown in
The payoff reel 11, as shown in
As shown in
As best seen in
As shown in
The installation and operation of the device of the invention is as follows. As shown in
As illustrated in
When the line passage apertures 29, 31 are aligned as shown in
An invention has been provided with several advantages. The tie-up accessory of the invention is simple in design and economical to manufacture. The payoff reel of the device can be located on an interior surface of a console so that it does not detract from the esthetic appearance of the craft. The locking mechanism requires only that a single hole be drilled or cut through the craft sidewall at a single location plus small holes for the mounting fasteners. The simple rotational locking action of the nested cylinders provides a simple yet effective means for fixing a given length of paid out line against the spring tension of the take up reel. The device is ideally suited for use with a personal water craft since such crafts tend to be lighter and smaller than traditional boats, thereby allowing a simpler and lighter weight locking mechanism to be utilized.
While the invention has been shown in only one of its forms, it is not thus limited but is susceptible to various changes and modifications without departing from the spirit thereof.
Number | Name | Date | Kind |
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3012736 | Brust | Dec 1961 | A |
3851613 | Armour | Dec 1974 | A |
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4846090 | Palmquist | Jul 1989 | A |
4969610 | Taylor et al. | Nov 1990 | A |
5819679 | Bonate et al. | Oct 1998 | A |
6095075 | Gordon et al. | Aug 2000 | A |