Marine cleat for receiving a thrown line

A cleat having at least two diverging fingers to receive a tossed mooring line and an aperture disposed below the fingers into which the line drops and in which the line is retained by at least one downward projection extending into the aperture.

FIELD OF THE INVENTION 
This invention relates to a cleat which automatically receives and engages 
a mooring line tossed from a boat. 
BACKGROUND OF THE INVENTION 
Cleats are well known devices for securing vessels to docks. A mooring line 
from a boat is generally wrapped around such a cleat, thereby fastening 
it. Tying the mooring line to the cleat, however, is sometimes difficult. 
In the case of a dock cleat, it is normally necessary for a person to 
stand on the dock itself in order to tie off the line. In the absence of a 
person on the dock to do this, a person in the boat must jump off carrying 
the line. This creates a particular problem where only one person is in 
the boat. A similar problem is encountered with a mooring buoy when one 
attempts to secure a boat to a mooring in a lake or harbor. Maneuvering 
the boat to the buoy and holding it next to it for a long enough time to 
secure the line to the mooring ring by snagging the ring with a boat hook 
is somewhat difficult, particularly where only one person is in the boat 
and he must both maneuver the boat and tie the line at the same time. 
A cleat intended for receiving a tossed line is disclosed in Brown U.S. 
Pat. No. 3,473,505. The structure shown does not have a very large space 
between its rounded converging upper surfaces for guiding a line thrown 
toward it into the neck and then into the enlarged lower aperture. The 
device works best when the line lands perpendicularly to the upper guiding 
surfaces. Furthermore the line may pull out of the slot as the boat comes 
closer to the dock and the angle between the line and the dock becomes 
greater due to the height of the boat. 
Rosinski U.S. Pat. No. 3,126,858 shows a combined chock and cleat in which 
the cleat portion has a pair of horns that linearly converge to a flat 
bottom having an opening leading to a bottom recess. It was not designed 
to automatically receive and engage a thrown line. 
SUMMARY OF THE INVENTION 
I have discovered that the problems of having to leave the boat to secure 
it to a dock, of having to snag a mooring buoy with a boat hook, and of 
having a thrown line pull out of a cleat as the boat approaches the dock 
can be solved by the invention, which comprises a cleat having at least 
two fingers which are separated at the top and which converge at the 
bottom into a neck that leads downwardly into an enlarged aperture bounded 
at the entrance to it from the neck by one or more downwardly protruding 
projections. When a mooring line, having a weight on its end with larger 
cross sectional dimensions than the aperture, is tossed so that the line 
lands between the fingers, the line slips down toward the neck. As the 
line is pulled toward the boat, the line slips down the neck into the 
aperture. The line is secured in place when the weight, which cannot pass 
through the aperture, reaches the cleat. Also the line cannot be pulled 
out through the neck as the boat approaches since the projection prevents 
re-entry of the line into the neck. 
In the preferred embodiment the neck is a slot that is angled downwardly in 
a direction away from the main portion of the aperture, and there is one 
projection at the entrance to the aperture. The angle of the slot and the 
single projection both prevent pulling out of the line. 
Another embodiment of this invention has a neck that is a vertical slot 
which enters an enlarged aperture having a pair of projections, one on 
each side of the entrance, protruding downwardly into the aperture. This 
embodiment engages the same type of mooring line in the manner of the 
previous embodiment. The line here is prevented from leaving the aperture 
and sliding up the slot by the pair of projections. 
Either embodiment can be mounted on a dock or on a mooring buoy or can be 
formed integrally with the mooring buoy. In both embodiments the aperture 
can be circular, the circular shape helping to guide the line into the 
main portion of the aperture in the preferred embodiment. 
In general the invention solves the problems stated above with a cleat that 
is simple, sturdy, easy to manufacture, and easy to use. 
PREFERRED EMBODIMENT 
I now turn to the drawings and description of the preferred embodiment of 
the invention.

DESCRIPTION 
1. Structure 
FIG. 1 shows cleat 10, which is made of a single piece of molded plastic 
and includes body 11 and a pair of fingers 12 which extend from body 11 
and which upwardly diverge from each other at an angle of approximately 
45.degree. from vertical, thereby forming a large opening therebetween. A 
slot 14 is disposed in cleat 10 and extends from the bottom of the fingers 
12 where they converge to a lower aperture 16 disposed near the bottom of 
cleat 10. A continuous mooring line passageway is therefore created from 
the large opening between the fingers 12, through the slot 14 and into the 
aperture 16. Slot 14 is disposed through cleat 10 at a 45.degree. angle 
from vertical so that while the upper end of the slot 14 adjacent to the 
fingers 12 is substantially centrally positioned with respect to the cleat 
10, the lower end of the slot connects with the right side of aperture 16 
near the right side of cleat 10. The left side of the lower end of slot 14 
at the entrance to aperture 16, which is the side nearest to the center of 
aperture 16, is bounded by a projection 18 which extends downwardly into 
the aperture 16. Slot 14 is downwardly inclined away from the center of 
aperture 16. 
Bolts 20 are placed in holes in the bottom of the cleat 10 for fastening 
the cleat 10 to a dock. 
In another embodiment, shown in FIG. 2, plastic cleat 30 comprises body 31 
and a pair of fingers 32 which upwardly diverge from each other, each at 
45.degree. to the vertical, forming a large opening therebetween. A 
vertical slot 34 which is about four inches in length extends from the 
bottom of the fingers 32 where they converge to a lower aperture 36 
disposed near the bottom of the cleat 30. A continuous mooring line 
passageway therefore exists from the large opening between the fingers 32, 
through the vertical slot 34, and into the aperture 36. The slot 34 is 
bounded on each side at the entrance to aperture 36 by a pair of 
projections 38 which downwardly extend into aperture 36. 
Bolts 40 are placed in holes in the bottom of the cleat 30 for fastening 
cleat 30 to a dock. 
Regarding dimensions, cleats 10 and 30 are both approximately one foot high 
and one foot wide at their bases, and the distance between fingers 12 and 
between fingers 32 at their upper tips is also approximately one foot. The 
width of slots 14 and 34 is about an inch, to accommodate a half-inch or 
less line. 
FIG. 3 shows cleat 60 attached to mooring buoy 70. The upper portions of 
cleat 60 are the same as those of cleat 10 (FIG. 1), but the base portions 
differ. Cleat 60 includes a pair of base legs 62 that are bowed and extend 
into foamed polystyrene float 72, where they meet and extend upwardly in a 
tube that engagingly surrounds eye bolt 74, the upper eye of which acts as 
mooring ring 76 and the lower eye of which is attached to anchor chain 78. 
In the embodiments shown in FIGS. 1 through 3 the plastic is made thicker 
along the edges that contact a mooring line. 
The plastic from which the embodiments of FIGS. 1 through 3 are cast can be 
any suitable plastic that is tough, durable, and light such as a phenol 
formaldehyde, a polyurethane, or an epoxy. 
2. Operation 
In operation of the preferred embodiment of FIG. 1, a mooring line 90 
(one-half inch in diameter) secured to a boat on one end and having a 
weight 92, such as the known "monkey's fist" (made from the end of the 
line and having a lead weight within a pocket of the ball formed by 
wrapping of the line), on the other end is tossed over the cleat 10 so 
that weight 92 lands beyond the cleat 10 opposite the boat and the line 90 
is received by the large opening between the fingers 12. Line 90 is then 
drawn back to the boat, and that portion of the line between the fingers 
12 of the cleat 10 slips down the slot 14 and into the aperture 16. The 
line 90 is further pulled until the weight 92 is adjacent to the aperture 
16. As the weight 92 has a greater cross sectional diameter than that of 
the aperture 16, it cannot be pulled through the cleat 10 and the line 90 
is thereby secured. Further pulling on the line 90 will therefore move the 
boat toward the cleat. The line 90 is retained in the cleat 10 even as the 
boat approaches because the projection 18 and the angle of the slot 14 
prevent line 90 from leaving the aperture 16. Once the boat is secured to 
one or more cleats 10 (e.g., at the stern and bow), the operator can 
secure the boat further to conventional cleats if desired. 
Operation of the embodiment of FIG. 2 is similar to that of the preferred 
embodiment. Mooring line 90 having weight 92 at its end is tossed over the 
cleat 30 so that the weight 92 lands on the side of the cleat 30 opposite 
the boat. The mooring line 90 is received by the large aperture between 
the fingers 32, and as the line 90 is drawn back to the boat, the portion 
of the line between the fingers 32 slips down the vertical slot 34 into 
the aperture 36. Again, the line 90 is secured as the weight is too large 
to pass through the aperture 36 and is prevented from leaving the aperture 
36 by the projections 38 bounding the slot 34. 
Operation of the embodiment of FIG. 3 is like that of the embodiment of 
FIG. 1. Mooring ring 76 is for a permanent mooring after cleat 60 has been 
used to tie off the line initially. 
OTHER EMBODIMENTS 
Other embodiments within the invention will occur to those skilled in the 
art. For example, the aperture may be of any shape including square as 
long as the weight at the end of the line cannot pass through it. The 
fingers of the cleat need not be vertical but could be both tilted back 
away from the boat to help prevent the line from pulling out of the cleat 
as the boat nears the dock. It is also not necessary for the fingers to 
incline at the same angle. One finger could, for example, be vertical and 
the other at an acute angle thereto. It is also possible to substantially 
eliminate the slot from the cleat, leaving only a short neck, or to make 
the slot curved or of downwardly narrowing width so as to bind the line at 
some point. Finally, there could be three or more upwardly diverging 
fingers extending from the cleat body, with the fingers equally spaced 
apart from each other in a horizontal plane (e.g., three fingers would be 
spaced 120.degree. apart), to facilitate receiving a line thrown from many 
different directions. This embodiment could be well suited for use with 
the mooring buoy. 
The cleat could also be made of single piece of metal.