Combination boat and automobile trailer

A double load trailer adapted for receiving an automobile on a first horizontal frame mounted on a wheeled axle. A second horizontal frame is slidably mounted on a plurality of vertical posts attached to the first frame. The second frame is adapted for receiving a boat thereon. When the automobile has been unloaded from the trailer, the second frame is lowered in a horizontal plane on top of the first frame so the boat can be unloaded from the trailer into the water.

BACKGROUND OF THE INVENTION 
This invention relates to a double load trailer having a horizontal frame 
slidably mounted on top of another horizontal frame for receiving 
automobiles, boats or the like thereon and more particularly but not by 
way of limitation to a double load trailer having a first frame mounted on 
a wheeled axle and adapted for receiving an automobile thereon and a 
second horizontal frame slidably mounted above the first frame and adapted 
for receiving a boat thereon. 
Heretofore, there have been various types of car and boat trailers, camper 
and boat trailer combinations and trailers for receiving boats and 
motorcycles thereon. These different types of trailers are disclosed in 
U.S. Pat. No. 4,221,420 to Vencill et al, U.S. Pat. No. 4,068,772 to 
Prudhomme, U.S. Pat. No. 3,989,265 to Smiley, U.S. Pat. No. 3,909,057 to 
Guthry and U.S. Pat. No. 4,188,056 to Watson. 
None of the above mentioned patents describe nor do they teach the unique 
combination of structure making up the subject double load trailer as 
described herein. 
SUMMARY OF THE INVENTION 
The subject invention is unique in design, rugged in construction and is 
adapted for hauling both an automobile and a boat on a trailer releasably 
attached behind a towing vehicle. The user of the trailer can quickly 
unload the automobile from the trailer so the automobile can be attached 
to the trailer. The automobile can then back the trailer down a boat ramp 
so the boat can quickly be unloaded into the water. The trailer can then 
be released from the automobile with the automobile then free for use 
independent of the towing vehicle. 
The combination boat and automobile trailer is operated by a single power 
winch which may be battery operated or any other power means for raising 
and lowering the boat frame above the automobile frame. 
The combination boat and automobile trailer for hauling both an automobile, 
a boat or the like behind a towing vehicle includes a first horizontal 
frame mounted on a wheeled axle and adapted for releasable attachment to 
the towing vehicle. A first vertical post is mounted on the front of the 
first frame. A second and third vertical post is mounted on opposite sides 
of the rear of the first frame. A second horizontal frame is disposed 
above the first frame and slidably mounted on the first, second and third 
posts. A power winch having a plurality of cables received around pulleys 
is attached to the first frame, the second frame and the posts for raising 
and lowering the second frame on the posts in a horizontal plane above the 
first frame. 
The advantages and objects of the invention will become evident from the 
following detailed description of the drawings when read in connection 
with the accompanying drawings which illustrate preferred embodiments of 
the invention.

DETAILED DESCRIPTION OF THE DRAWINGS 
In FIG. 1 a side view of the combination boat and automobile trailer is 
shown and designated by general reference numeral 10. The trailer 10 is 
shown with an automobile 12 and boat 14 loaded thereon and shown in dotted 
lines. 
The trailer 10 includes a first horizontal frame 16 mounted on a wheeled 
axle 18. In this figure the frame 16 includes more than one axle 18 having 
tires 19 mounted thereon. 
A first vertical post 20 having a post support 21 is attached to the front 
of the first frame 16. Mounted at the rear of the frame 16 and on opposite 
sides is a second post 22 and a third post 24. The third post 24 can be 
seen in FIG. 5. A second horizontal frame 26 is slidably mounted on the 
posts 20, 22 and 24 by a first sleeve 28, a second sleeve 30 and a third 
sleeve 32. The third sleeve 32 can be seen in FIG. 5. The second and third 
posts 22 and 24 are supported by post supports 33 shown in FIG. 5. 
The second horizontal frame 26 is raised and lowered on the posts 20, 22 
and 24 through the use of a winch and cable system having a winch 34 
connected to a plurality of cables which will be described in detail under 
FIG. 6. 
The trailer 10 further includes a trailer hitch 36 which is used for 
releasable attachment to a towing vehicle. The towing vehicle is not shown 
in the drawings. The automobile 12 can be unloaded from the trailer 10 and 
connected to the trailer 10 for unloading the boat 14 into the water. As 
shown in FIG. 2 the automobile 12 has been unloaded and by using the power 
winch and cable system the second horizontal frame 26 has been lowered in 
a horizontal plane to a position where the second frame 26 rests on top of 
the first frame 16. The trailer 10 can now be backed into the water for 
unloading the boat 14. 
The second horizontal frame 26 further includes a bow support 38 with a 
hand winch 40 attached to the front of the second frame 26. The winch 40 
is used for securing the boat 14 against the bow support 38 and releasing 
the boat 14 when it is unloaded. The second frame 26 also includes boat 
guides 42 for aiding in loading and unloading the boat 14 on the second 
frame 26. In FIG. 3 boat guide supports 44 can be seen which are mounted 
along the length of the second frame 26 for receiving the boat thereon and 
centering the boat 14 on top of the frame 26. 
In FIG. 4 the second frame 26 has been removed for exposing the top of the 
first frame 16. The first frame 16 can be seen having a pair of fenders 46 
mounted over the wheels 20 and a plurality of frame cross supports 48. 
Also seen in this view is a pair of tire guides 50 mounted on the opposite 
sides of the frame 16 and along the length thereof for receiving the tires 
of the automobile 12 when it is loaded thereon. 
In FIG. 5 a rear view of the trailer 10 can be seen with both the 
automobile 12 and boat 14 removed. In this figure the second frame 26 can 
be seen raised in a fully extended position above the first frame 16. 
In FIG. 6 the winch and cable system is shown removed from the trailer 10 
to more clearly illustrate how the second horizontal frame 26 is raised 
and lowered above the first horizontal frame 16. 
The power winch 34 is connected to a main cable 52 which is received around 
a main pulley 54 with the other end of the main cable 52 attached to the 
first post 20. The main pulley 54 is suspended underneath the first frame 
16 and between the front and rear of the frame 16. A first post pulley 56 
is mounted on top of the first post 20 and can be seen in FIGS. 1 and 2. 
One end of a first post cable 57 is attached to the first sleeve 28 with 
the first post cable 57 received around the first post pulley 56 then 
around a first frame pulley 58 which is mounted on the front of the frame 
16. The first post cable 57 is then received around a first idle pulley 60 
mounted at the rear of the first frame 16 and shown in FIG. 5. The first 
post cable 57 is then attached to a main pulley block 62 attached to the 
main pulley 54. 
A second post pulley 64 is mounted on top of the second post 22 and shown 
in FIGS. 1 and 2. A second post cable 66 is attached to the second sleeve 
30 and received around the second post pulley 64 and then around a second 
frame pulley 68 mounted on the rear of the frame 16 and shown in FIG. 5. 
The second post cable 66 is then received around a second idle pulley 70 
and then the opposite end of the cable 66 is attached to the main pulley 
block 62. 
A third post pulley 72 is mounted on top of the third post 24 and can be 
seen in FIG. 3. One end of a third post cable 74 is attached to the third 
sleeve 32. The third post cable 74 is then received around a third frame 
pulley 76 mounted on the rear of the frame 16 and shown in FIG. 5. The 
third post cable 74 is then received around a third idle pulley 78 shown 
in FIG. 5 and then the opposite end of the cable 74 is attached to the 
main pulley block 62. 
When the main cable 52 is unwound from the power winch 34 the main pulley 
54 moves toward the rear of the first frame 16 and the first post cable 
57, second post cable 66 and third post cable 74 allow the sleeves 28, 30 
and 32 to slide downward on the posts 20, 22 and 24 thereby lowering the 
second frame 26 on top of the first frame 16 as shown in FIG. 2. When the 
boat 14 has been unloaded and then loaded again on the frame 26 and it is 
desired to load the automobile 12 on the trailer 10, the second frame 26 
is raised on the posts 20, 22 and 24 by reversing the direction of the 
power winch 34 and winding the main cable 52 thereon. At this time, the 
main pulley 62 moves forward toward the front of the first frame 16 with 
the first post cable 57, second post cable 66 and third post cable 74 
raising the sleeves 28, 30 and 32 on the posts until the second frame 26 
is in a raised position. 
It should be noted in FIG. 1 and FIG. 2 the second frame 26 is secured in 
place by safety pins 80 received in holes 82 in the top of the posts 20, 
22 and 24. This prevents the second frame 26 from inadvertently lowering 
onto the top of the automobile 12 or the first frame 16 should the cable 
system accidently be released. It can be appreciated when it is desired to 
lower the second frame 26 before activating the power winch 34, the pins 
80 are removed from the holes 82. 
Changes may be made in the construction and arrangement of the parts or 
elements of the embodiments as described herein without departing from the 
spirit or scope of the invention defined in the following claims.