Information
-
Patent Grant
-
6179525
-
Patent Number
6,179,525
-
Date Filed
Tuesday, May 11, 199926 years ago
-
Date Issued
Tuesday, January 30, 200124 years ago
-
Inventors
-
Original Assignees
-
Examiners
- Lillis; Eileen D.
- Pechhold; Alexandra K.
Agents
-
CPC
-
US Classifications
Field of Search
US
- 405 218
- 405 219
- 114 266
- 114 267
- 114 263
-
International Classifications
- B63C302
- B63B3534
- B63B3538
-
Abstract
A floating dock section that is secure, economical and durable and can be coupled together with a similar type section by a connecting member that fits into a socket of the dock section. Each connecting member has flanges that fit into receiving sockets of two adjacent dock sections to form a dock of a preferred configuration so that the dock sections can be arranged in a plethora of configurations. Modular pieces for end posts and other accessories can be added. The bottom surface of the dock section includes a plurality of rectangularly shaped closely spaced apart troughs that are in a parallel alignment with one another.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to floating docks, and, in particular, to durable polyethylene dock sections that are formed to provide a rigid, strengthened top surface that maintains its shape and provides a superior support and feel for persons walking on the section.
2. Description of the Prior Art
Floating marine docks formed of sections are commonly used as a means of providing access to and mooring for boats or as swimming or fishing platforms. Modular or sectional docks are frequently employed for constructing docks of various sizes and configurations. In the past, Styrofoam has commonly been used as the basis for docking modules. These modules, however, are unstable, cumbersome, hazardous to the environment, and are, therefore, limited in their applications. This creates a need for a buoyant modular dock made almost entirely of molded polyethylene or other environmentally stable materials.
In addition, the apparatus connecting modular docks together must be secure enough and strong enough to withstand high stress. Some prior art docks have secured floating dock sections together with joists, locking pins, mounting plates, springs and other fasteners, but each suffers from its own disadvantages. U.S. Pat. No. 5,281,055 utilizes rubber connectors that fit into sockets positioned at the top and bottom edges of the dock sections. To maintain flotation of the '055 patent dock sections if they are damaged so that they become filled with water, the sections are formed with a plurality of frustoconically shaped pylons that trap air for assisting in supporting the sections in the water.
The lateral and vertical movement that results from the action of wind and waves against floating docks puts considerable stress on the connecting apparatus which must be highly durable. Furthermore, the top surface of the dock sections must be supported to present a firm feel to a user. In addition, the amount of flexing of the top surface should be minimized to reduce the potential of stress cracking. A need exists, therefore, for a modular floating dock with a high strength connecting apparatus that is durable enough to be used in a variety of settings.
SUMMARY OF THE INVENTION
The present invention provides a durable modular floating dock section that can be utilized to form a variety of dock configurations for boating, swimming, fishing, and various other functions. The individual dock sections include a plurality of closely spaced apart parallel aligned troughs that are arranged in a transverse relationship to the length of the sections. The sections can be connected together by using a connecting member to form a variety of design configurations. The connecting member is comprised of two flanges that each fit into a complementary receiving socket on two adjacent dock sections. The connecting member and dock sections can be further secured together by a bolt and nut. Other modular pieces, such as a pole bracket, can be connected to the dock sections in a similar fashion.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a perspective top view of a preferred embodiment of the components of a floating dock of the present invention formed of two dock sections and three connecting members that are used to secure the dock sections together.
FIG. 2
is a perspective view of a preferred embodiment of one of the connecting members shown in FIG.
1
.
FIG. 3
is a side view of the connecting member of FIG.
4
.
FIG. 4
is a top view of the connecting member of FIG.
4
.
FIG. 5
is a perspective bottom view of one of the dock sections of FIG.
1
.
FIG. 6
is a cross sectional view of one of the dock sections of
FIG. 1
taken along the line
6
—
6
of FIG.
1
.
FIG. 7
is a perspective view of a pole bracket that can be attached to a dock section.
FIG. 8
is a top view of the embodiment of FIG.
7
.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The present invention involves a floating dock
10
, as shown in
FIG. 1
, comprised of at least two dock sections
11
of the present invention. Preferably, the sections
11
are connected together by three connecting members
12
to provide a wobble free connection therebetween. However, it should be recognized by those skilled in the art that a single connecting member
12
could be used where conditions allow. Each dock section
11
is, in the preferred embodiment, a one piece molded body and may be of any shape, although a square or rectangular shape is preferred. The dimensions of each dock section
11
can vary depending upon its intended location and design. In the preferred embodiment, each section
11
is generally rectangular in shape, forty-five inches long, thirty inches wide, ten inches high and weighs approximately fifty pounds.
The dock sections
11
can be constructed of any suitable material, but preferably they are made of molded polyethylene, because it possesses strength and durability, is resistant to gas, oil and other contaminants and is also stable on the water. Each dock section
11
is generally hollow. The wall thickness of the dock sections
11
can vary, but a range of one-eighth inch in protected areas to three-eighth inch in exposed areas like outside corners, and with a wall thickness on the top (walking) surface of approximately one-fourth inch, is preferred.
Spaced about the perimeter of the dock sections
11
are a plurality of receiving sockets
13
. It is preferred that the sockets
13
are uniformly spaced along the sides and ends of each dock section
11
so that two sections can be connected together in a variety of ways. The dock sections
11
can have any appropriate number of sockets
13
, although in the preferred embodiment, three such sockets are located along the long side of the dock section
11
and two sockets are located along the short side.
Referring now to
FIGS. 2
,
3
and
4
the connecting members
12
are used to attach the dock sections
11
together and are complimentary in shape to the sockets
13
. Each connecting member
12
has a body
15
with at least two flanges
16
, and each flange
16
is received in and interlocks with a receiving socket
13
. Each flange
16
has an inwardly tapered post section
17
adjacent to which is a top recess
18
. In the preferred embodiment, the body
15
further includes two side members
19
that are somewhat similar in shape to the flanges
16
and extend from opposite sides thereof. Each side member
19
is notched to form a recess
20
, and the flanges
16
have lower ledge portions
24
that are spaced from the side members
19
to form bottom recesses
25
.
In the preferred embodiment, the top of each post section
17
contains a threaded bore
26
molded therein. Securing means, such as a bolt (not shown), can then be positioned through holes
28
in the top of the dock section
10
and secured in the bores
26
. This serves to semi-permanently secure the dock section
10
and its associated connecting member
12
together.
As shown best in
FIG. 5
, the sockets
13
each comprise a central, vertically oriented, tapered recessed portion
30
that is complementary in shape to one-half of a connecting member
12
, as described below so that they fit together in an interlocking relationship. At the top of each socket
13
is a top overhang
31
intended to fit into the top recess
18
of one of the connecting members
12
. In the preferred embodiment, the sockets
13
further comprise two bottom overhangs
32
that interlock with the bottom recesses
25
of one of the connecting members
12
, and two side overhangs
33
that interlock with the recesses
20
in the side members
19
to thereby provide an efficient, effective and durable means for interlocking the dock sections
10
together.
To increase the structural strength of the dock sections
10
, a number of parallel aligned troughs
35
and
36
(
FIG. 5
) of a generally rectangular shape extend from the bottom upward toward the top of each dock section
10
. These troughs
35
and
36
each define a cavity in the dock section
10
, so that air is captured within the trough
35
when the dock section
10
is positioned in the water. The sides of the troughs
35
and
36
also provide structural support against downward or lateral pressure applied to the dock sections
11
and minimize flexing of the top surface of the sections
11
. In the preferred embodiment, the troughs
35
and
36
comprise a total of five and extend along the bottom of the dock section
10
.
There are three of the troughs
35
, which are shorter than the troughs
36
and extend between the receiving sockets
13
on their respective sides. There are two of the long troughs
36
that are unencumbered by the receiving sockets
13
so as to extend from side to side. In the preferred embodiment, the short troughs
35
are approximately nineteen inches long, four inches wide and nine and one-half inches deep, and the long troughs
36
are approximately twenty-five inches long, four inches wide and nine and one-half inches deep. Accordingly, a majority of the bottom of the dock sections
11
is formed from the troughs
35
and
36
. As shown by
FIGS. 5 and 6
, the ceilings of the troughs
35
and
36
are formed with transverse ribs
37
to improve the flow of plastic during molding and productability of the sections
11
. The top of each dock section
11
is formed with a plurality of parallel aligned, spaced apart elongated indentations
38
(see
FIG. 1
) that span each section
11
, which indentations are located in an alignment between each of the troughs
35
and
36
to further minimize the amount of flexing of the dock section top surface and thereby reduce the potential of stress cracking.
To stabilize the dock
10
, it is highly preferable to utilize one or more stabilizing poles (not shown) to brace the floating dock. Each stabilizing pole can be secured to the dock by the use of a pole bracket
40
as shown in
FIGS. 7 and 8
. Each of the members
40
is comprised of a flange section
41
and a pole section
42
that contains a pole hole
43
. The flange section
41
is similar in shape to the flanges
16
. Thus, each pole bracket
40
can be secured in one of the receiving sockets
13
. Other types of attachments and accessories, such as gangways, ladders, boat moorings, and floating dry docks for watercraft (all not shown) can also be attached to the dock by the use of members that interlock with the receiving sockets
13
.
In application, the dock sections
10
are connected together with the use of connecting members
12
into a desired configuration. Any dock section
11
can easily be secured to the shore through the use of arms, cables, gang planks or other means. The present invention thus provides a complete floating dock that does not require additional elements for use, such as boat bumpers or wood planking, or additional parts for assembly. The polyethylene dock sections
11
are durable, stable and have a long life. The shape of the flanges
16
and receiving sockets
13
ensure that the dock sections
11
will remain securely attached by the connecting members
12
so that the dock sections
11
will not separate during use. The connecting members
12
also result in a tight fit and a very small gap between the dock sections
11
, and this increases the ease and safety of walking on the dock
10
.
While a preferred embodiment of the present invention has been described, it should be understood that various changes, adaptations and modifications may be made therein without departing from the spirit of the invention and the scope of the appended claims.
Claims
- 1. A hollow floating dock section that forms part of a floating dock and comprises:a) a top surface; b) a pair of end walls; c) a pair of sidewalls; d) a bottom surface that is formed with a plurality of recessed troughs that are in parallel alignment with one another and extend upwardly toward said top surface to terminate in a ceiling that is formed with traverse spaced apart ribs and is closely adjacent to said top surface; and e) wherein said top surface is formed with a plurality of parallel aligned, spaced apart elongated indentations that extend between said end walls aligned between the troughs of said bottom surface.
- 2. A dock section as recited in claim 1, wherein said troughs alternately include long troughs and short troughs.
- 3. A dock section as recited in claim 1, wherein said section is rectangularly shaped and is adapted to be fastened to another similarly shaped section to form a floating dock.
- 4. A dock section as recited in claim 1, wherein said section has at least five troughs.
- 5. A dock section as recited in claim 3, wherein said troughs have ends that are adjacent to said end walls.
- 6. A dock section as recited in claim 5, wherein said end walls of said section have spaced apart receiving sockets, with the receiving sockets of one end wall in alignment with the receiving sockets of the other sidewall to form an aligned pair of sockets.
- 7. A dock section as recited in claim 6, wherein one of said troughs is in alignment with one of said aligned pair of sockets.
US Referenced Citations (14)