CA1288736C - Drop bed trailer - Google Patents
Drop bed trailerInfo
- Publication number
- CA1288736C CA1288736C CA 534830 CA534830A CA1288736C CA 1288736 C CA1288736 C CA 1288736C CA 534830 CA534830 CA 534830 CA 534830 A CA534830 A CA 534830A CA 1288736 C CA1288736 C CA 1288736C
- Authority
- CA
- Canada
- Prior art keywords
- trailer
- frame
- support members
- trailer frame
- hitch pole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
CROP BED TRAILER
ABSTRACT OF THE DISCLOSURE
Utility trailers are used to transport snow-mobiles, all-terrain vehicles, golf carts and the like and ramps have to be provided to load or unload these relatively heavy articles from the trailer or they must be lifted manually. The present trailer is provided with a wheel mounted frame and a floor frame pivoted at the rear end thereof to the rear end of the trailer frame. A
winch is provided at the front end to raise and lower the front end of the floor frame relative to the trailer frame. When the floor frame is lowered, the trailer pivots or tilts rearwardly around the wheel axes so that the floor frame is flat on the ground for easy loading and unloading of equipment thereon. The hitch pole is hinged to the front of the floor frame so that it may remain hitched to the towing vehicle when loading or unloading takes place.
ABSTRACT OF THE DISCLOSURE
Utility trailers are used to transport snow-mobiles, all-terrain vehicles, golf carts and the like and ramps have to be provided to load or unload these relatively heavy articles from the trailer or they must be lifted manually. The present trailer is provided with a wheel mounted frame and a floor frame pivoted at the rear end thereof to the rear end of the trailer frame. A
winch is provided at the front end to raise and lower the front end of the floor frame relative to the trailer frame. When the floor frame is lowered, the trailer pivots or tilts rearwardly around the wheel axes so that the floor frame is flat on the ground for easy loading and unloading of equipment thereon. The hitch pole is hinged to the front of the floor frame so that it may remain hitched to the towing vehicle when loading or unloading takes place.
Description
37~
." 1 DROP BED TRAILER
BACKGROUND OF THE INVENTION
This invention relates to new and useful improve-ments in utility trailers, particularly utility trailers that are towed behind cars or light trucks and are used for the transportation of relatively heavy objects including wheeled objects such as golf carts, snowmobiles, all-terrain vehicles and the like~
When loading and unloading such vehicles from a conventional utility trailer, either ramps have to be provided so that they can be driven onto and off from the trailer or, alternatively, (as is more usual) they have to be lifted manually from the ground to the trailer f].oor and vice versa and because such vehicles are relatively heavy and awkward, this normally requires two or three people and even then it becomes a difficult procedure with the possibility of injury or damage occurring either to the people or to the vehicle respectively.
According to the present invention there is provided a utility trailer comprising in combination:
a substantially rectangular trailer frame having a front end and a rear end;
ground supporting wheels including at least one wheel upon each side of the trailer frame;
means mounting the wheels on the trailer;
a substantially rectangular floor frame having a , ~
8~3~36 front end and a rear end;
pivot means, pivotally mounting the rear end of the floor frame to the rear end of the trailer frame for pivotal movement of the frames between a lowered position, with the floor frame in a ground-engaging position and a raised transport position with the floor frame above the ground-engaging position;
hitch pole means coupled to the floor frame for pivotal movement about a transverse axis, the hitch pole means extending forwardly from the floor frame;
means for selectively securing the hitch pole means to the trailer frame ~hen in the raised, transport position; and winch means at the front end of the trailer frame and operatively connected to the hitch pole means for drawing the front of the trailer frame and the hitch po]e means towards one another so as to raise the floor frame substantially horizontally from the ground-engaging position to the transport position.
By providing a winch mechanism at the front of the trailer, joining the trailer frame and the hitch pole, the floor frame may be lowered horizontally as the trailer frame tilts rearwardly around the wheel a~es, until the floor frame is lying flat on the ground. This permits ~ehicles as mentioned above, or heavy loads, to be loaded and unloaded to and from the floor frame. When such loads are loaded onto the ~loor frame for transport, the floor .
frame is winched upwardly to engage the underside of the trailer frame whereupon it is pinned into position in a transport mode.
The reverse procedure takes place when it is desired to unload vehicles or heavy loads from the trailer and in either case, the hitch pole may remain hitched to the towing vehicle or may be seperat~d as desired.
Enclosing sides may be provided for the trailer frame with the rear side panel being removeable to facili-tate loading and unloading upon the floor frame.
Still another advantage of the invention .is to provide a device of the character hereinwithin described which is simple in construction, economically manufactured and otherwise well suited to the purpose for which it is designed.
With the foregoing in view, and other advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, the invention is herein described by reference to the acco~panying drawings forming a part hereof, which includes a description of the best mode known to the applicant and of the preferred typical embodiment of the principles of the present invention, in which:
: . -,,, ," ~, .
, ~ .
' DESCRIPTION OF THE DRAWINGS
Figure 1 is a side elevation of the utility trailer shown in the raised position~
Figure 2 is a view similar to Figure 1 but showing the floor frame flat upon the ground and in the loading position.
Figure 3 is a top plan view of Figure 1.
Figure 4 is an enlarged side elevation of the front end portion of the utility trailer with ~he two frames partially separated.
Figure 5 is an enlarged side elevation showing the wheel mounting to the trailer frame.
In the drawings like characters of reference indicate corresponding parts in the different figures.
DETAILED DESCRIPTION
Proceeding therefore to describe the invention in detail, reference to the drawings will show that the invention comprises generally, a substantially rectangu-lar trailer frame collectively designated 10 and a suh-stantially rectangular floor frame collectively designat-ed 11 with ground engaging wheel assemblies 12 supporting the trailer frame and a winch system collectively designated 13 operatively connected between the two frames for raising and lowering the floor frame relative to the trailer frame.
In detail, the trailer frame is substantially rectangular and includes a pair of spaced and parallel longitudinally extending side frame members 14, a rear cross member 15 and a front cross member 16 with the various members being welded or otherwise secured together as is conventional.
Enclosing sides 17 may be provided together with a front fence or enclosure portion 18 and a rear fence or enclosure portion 19 which is preferably detach-able in a conventional manner (not illustrated).
Although the sides are shown as spaced and parallel side members 20 maintained in spaced and parallel relationship above the longitudinal side frame members 14 by means of vertical members 21, nevertheless it will be appreciated that any form of trailer sides may be provided depending upon the usage of the trailer.
The ground engaging wheel assemblies 12 include conventional ground engaging wheels 22, journalled for rotation upon stub axles 23 each of which is held or secured to a longitudinally extending wheel support member 24 pivoted by one end as at 25 to a hanger plate 26 secured to and depending from the trailer side frame member 14 with the members 24 rearwardly therefrom.
Each of these members 24 is in turn secured to a conventional semi-elliptic leaf spring assembly 27 pivotally secured by the ends 28 thereof to spring shackles 29 secured to the frame member 14 as clearly shown in Figure 5.
The floor frame collectively designated 11 is also rectangular when viewed in plan and includes a pair of spaced and parallel longitudinally extending frame members 30 maintained in spaced apart relationship by a rear transverse member 31 and a front transverse member 32 together with a plurality of spaced and parallel intermediate transport members 33 and a floor panel 34 is secured to the upper sides of this floor frame and is shown in fragmentary form in Figure 3.
The dimensions of the floor frame 11 are simi-lar to the dimensions of the trailer frame 14 except that the longitudinally extending members 30 are situated inboard of the longitudinal frame members 14 to permit clearance for the raising and lowering action.
Pivots 35 extend from the ends of the rear member 31 of the floor frame 10 and engage hangers 36 as shown in Figure 2, it being understood that there is a pivot 35 upon each side of the rear end of the floor frame 10. When in the raised position, the floor frame ~8~37~6 11 is flush against the under side of the trailer frame 10 as shown in Figure 1 and the front end of the floor frame 11 i5 provided with a pair of upstanding pins 37 which engage within drillings 38 formed in the front cross member 18 of the trailer frame adjacent the outer ends thereof and indicated in Figures 2 and 4 thus stabilizing the two frames against side-sway when being towed.
A hitch pole assembly is provided and is col-lectively designated 39 and is shown in detail in Figures 3 and 4. It consists of a longitudinally extending hitch pole member 4~ having a ball hitch engaging component 41 secured to the front or distal end 42 thereof. It may also be provided with a skid 43 upon the underside there-of and towards the front end 42 thereof.
This hitch pole member 40 is pivotally secured by a pivot pin 44, and by the rear end thereof, between a pair of spaced and parallel lugs 45 secured to and extending upwardly from a plate 46 which in turn is secured as by welding or the like centrally to the under-side of the front cross member 32 of the floor frame 11.
Part of the hitch pole assembly is provided on the fron~ end of the trailer ~rame and includes a pair of spaced and parallel winch support members 47 secured to f~ ~?
and extending forwardly from the transverse front member 18 of the trailer frame 10 and braced by diagonals 48 extending between each of ~he members 47 and outboard on the cross member 18 (see Figure 3). The front ends of the members 47 are cross-apertured as at 49, the purpose of which will hereinafter be explained.
A superstructure in the form of a winch frame 50 extends upwardly from the members 47 and includes a pair of spaced and parallel vertical members 51 and spaced and parallel horizontal members 52 extending rear-wardly from the upper ends of the members 51 and being connected as by welding to the top or upper end of the front trailer frame enclosure panel 18.
A winch assembly collectively designated 53 includes a winch drum 54 mounted for rotation between plates 55 secured to the members 52. A cable pulley 56 is journalled for rotation upon a transverse pivot pin 57 supported between a spaced and parallel pair of straps 58 extending upwardly from each side of the hitch pole 40 and shown in Figure 4. A flexible cable 59 extends around the winch drum 54, around the pulley 56 and is dead-ended as at 60 to the support frame members 51 adjacent the upper ends thereof and the winch drum may be power rotated or hand crank rotated by hand crank 61 ...... .
-depending upon design.
In operation, and when in the raised or trans-port position shown in Figure 1, the floor frame 11 engages the underside of the trailer frame lO with pins 37 preventing side-sway. ln this position, the hitch pole 40 nests between the two support members 48 and a detachable locking pin 62 (shown in Figure 4) may be engaged through the aforementioned apertures 49 at the front ends of the support members 48 and through a cor-responding and matching aperture 63 formed transversely through the hitch pole 40 thus locking same into position with the front end of the floor frame being held against the underside of the trailer frame by means of the winch assembly 53 which is a ratchet type winch and is conven-tional in construction.
When it is desired to lower the trailer floor 11 to the ground engaging position shown in Figure 2, the pin 62 is removed and the winch actuated by the crank 61 in order to lower the front end of the floor frame 11 away from the front end of the trailer frame lO. As the floor frame is lowered, the trailer frame pivots around the wheel axles 23 and the rear end of the trailer lowers towards the ground with the front end elevating due to the weight distribution of the assembly so that when the ' . - ' ' floor engage~ flat upon the ground as shown in Figure 2, the trailer frame is in the position also indicated in Figure 2.
If the hitch pole 40 has remained attached to the towing vehicle as is desirable, then this pivots at 44 and allows the front end of the floor frame to engage the ground. The design is such that the floor frame remains substantially parallel during the lowering and raising action with the trailer frame pivoting around the wheel axles.
The rear fence or enclosure member 19 may be removed and the vehicle easily driven onto the trailer floor and secured in position if desired whereupon the winch may be actuated to raise ~he trailer floor upwardly into engagement with the underside of the trailer frame as the trailer frame pivots in the opposite direction around the wheel axles 23 whereupon pin 62 may be replac-ed thus locking the assembly in position.
Unloading the trailer consists of reversing this procedure to place the trailer floor flat upon the ground.
Since various modifications can be made in my invention as hereinabove described, and many apparently widely different embodiments of same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all matter contained in the accompanying specification shall be interpreted as illustrative only and not in a limiting sense.
." 1 DROP BED TRAILER
BACKGROUND OF THE INVENTION
This invention relates to new and useful improve-ments in utility trailers, particularly utility trailers that are towed behind cars or light trucks and are used for the transportation of relatively heavy objects including wheeled objects such as golf carts, snowmobiles, all-terrain vehicles and the like~
When loading and unloading such vehicles from a conventional utility trailer, either ramps have to be provided so that they can be driven onto and off from the trailer or, alternatively, (as is more usual) they have to be lifted manually from the ground to the trailer f].oor and vice versa and because such vehicles are relatively heavy and awkward, this normally requires two or three people and even then it becomes a difficult procedure with the possibility of injury or damage occurring either to the people or to the vehicle respectively.
According to the present invention there is provided a utility trailer comprising in combination:
a substantially rectangular trailer frame having a front end and a rear end;
ground supporting wheels including at least one wheel upon each side of the trailer frame;
means mounting the wheels on the trailer;
a substantially rectangular floor frame having a , ~
8~3~36 front end and a rear end;
pivot means, pivotally mounting the rear end of the floor frame to the rear end of the trailer frame for pivotal movement of the frames between a lowered position, with the floor frame in a ground-engaging position and a raised transport position with the floor frame above the ground-engaging position;
hitch pole means coupled to the floor frame for pivotal movement about a transverse axis, the hitch pole means extending forwardly from the floor frame;
means for selectively securing the hitch pole means to the trailer frame ~hen in the raised, transport position; and winch means at the front end of the trailer frame and operatively connected to the hitch pole means for drawing the front of the trailer frame and the hitch po]e means towards one another so as to raise the floor frame substantially horizontally from the ground-engaging position to the transport position.
By providing a winch mechanism at the front of the trailer, joining the trailer frame and the hitch pole, the floor frame may be lowered horizontally as the trailer frame tilts rearwardly around the wheel a~es, until the floor frame is lying flat on the ground. This permits ~ehicles as mentioned above, or heavy loads, to be loaded and unloaded to and from the floor frame. When such loads are loaded onto the ~loor frame for transport, the floor .
frame is winched upwardly to engage the underside of the trailer frame whereupon it is pinned into position in a transport mode.
The reverse procedure takes place when it is desired to unload vehicles or heavy loads from the trailer and in either case, the hitch pole may remain hitched to the towing vehicle or may be seperat~d as desired.
Enclosing sides may be provided for the trailer frame with the rear side panel being removeable to facili-tate loading and unloading upon the floor frame.
Still another advantage of the invention .is to provide a device of the character hereinwithin described which is simple in construction, economically manufactured and otherwise well suited to the purpose for which it is designed.
With the foregoing in view, and other advantages as will become apparent to those skilled in the art to which this invention relates as this specification proceeds, the invention is herein described by reference to the acco~panying drawings forming a part hereof, which includes a description of the best mode known to the applicant and of the preferred typical embodiment of the principles of the present invention, in which:
: . -,,, ," ~, .
, ~ .
' DESCRIPTION OF THE DRAWINGS
Figure 1 is a side elevation of the utility trailer shown in the raised position~
Figure 2 is a view similar to Figure 1 but showing the floor frame flat upon the ground and in the loading position.
Figure 3 is a top plan view of Figure 1.
Figure 4 is an enlarged side elevation of the front end portion of the utility trailer with ~he two frames partially separated.
Figure 5 is an enlarged side elevation showing the wheel mounting to the trailer frame.
In the drawings like characters of reference indicate corresponding parts in the different figures.
DETAILED DESCRIPTION
Proceeding therefore to describe the invention in detail, reference to the drawings will show that the invention comprises generally, a substantially rectangu-lar trailer frame collectively designated 10 and a suh-stantially rectangular floor frame collectively designat-ed 11 with ground engaging wheel assemblies 12 supporting the trailer frame and a winch system collectively designated 13 operatively connected between the two frames for raising and lowering the floor frame relative to the trailer frame.
In detail, the trailer frame is substantially rectangular and includes a pair of spaced and parallel longitudinally extending side frame members 14, a rear cross member 15 and a front cross member 16 with the various members being welded or otherwise secured together as is conventional.
Enclosing sides 17 may be provided together with a front fence or enclosure portion 18 and a rear fence or enclosure portion 19 which is preferably detach-able in a conventional manner (not illustrated).
Although the sides are shown as spaced and parallel side members 20 maintained in spaced and parallel relationship above the longitudinal side frame members 14 by means of vertical members 21, nevertheless it will be appreciated that any form of trailer sides may be provided depending upon the usage of the trailer.
The ground engaging wheel assemblies 12 include conventional ground engaging wheels 22, journalled for rotation upon stub axles 23 each of which is held or secured to a longitudinally extending wheel support member 24 pivoted by one end as at 25 to a hanger plate 26 secured to and depending from the trailer side frame member 14 with the members 24 rearwardly therefrom.
Each of these members 24 is in turn secured to a conventional semi-elliptic leaf spring assembly 27 pivotally secured by the ends 28 thereof to spring shackles 29 secured to the frame member 14 as clearly shown in Figure 5.
The floor frame collectively designated 11 is also rectangular when viewed in plan and includes a pair of spaced and parallel longitudinally extending frame members 30 maintained in spaced apart relationship by a rear transverse member 31 and a front transverse member 32 together with a plurality of spaced and parallel intermediate transport members 33 and a floor panel 34 is secured to the upper sides of this floor frame and is shown in fragmentary form in Figure 3.
The dimensions of the floor frame 11 are simi-lar to the dimensions of the trailer frame 14 except that the longitudinally extending members 30 are situated inboard of the longitudinal frame members 14 to permit clearance for the raising and lowering action.
Pivots 35 extend from the ends of the rear member 31 of the floor frame 10 and engage hangers 36 as shown in Figure 2, it being understood that there is a pivot 35 upon each side of the rear end of the floor frame 10. When in the raised position, the floor frame ~8~37~6 11 is flush against the under side of the trailer frame 10 as shown in Figure 1 and the front end of the floor frame 11 i5 provided with a pair of upstanding pins 37 which engage within drillings 38 formed in the front cross member 18 of the trailer frame adjacent the outer ends thereof and indicated in Figures 2 and 4 thus stabilizing the two frames against side-sway when being towed.
A hitch pole assembly is provided and is col-lectively designated 39 and is shown in detail in Figures 3 and 4. It consists of a longitudinally extending hitch pole member 4~ having a ball hitch engaging component 41 secured to the front or distal end 42 thereof. It may also be provided with a skid 43 upon the underside there-of and towards the front end 42 thereof.
This hitch pole member 40 is pivotally secured by a pivot pin 44, and by the rear end thereof, between a pair of spaced and parallel lugs 45 secured to and extending upwardly from a plate 46 which in turn is secured as by welding or the like centrally to the under-side of the front cross member 32 of the floor frame 11.
Part of the hitch pole assembly is provided on the fron~ end of the trailer ~rame and includes a pair of spaced and parallel winch support members 47 secured to f~ ~?
and extending forwardly from the transverse front member 18 of the trailer frame 10 and braced by diagonals 48 extending between each of ~he members 47 and outboard on the cross member 18 (see Figure 3). The front ends of the members 47 are cross-apertured as at 49, the purpose of which will hereinafter be explained.
A superstructure in the form of a winch frame 50 extends upwardly from the members 47 and includes a pair of spaced and parallel vertical members 51 and spaced and parallel horizontal members 52 extending rear-wardly from the upper ends of the members 51 and being connected as by welding to the top or upper end of the front trailer frame enclosure panel 18.
A winch assembly collectively designated 53 includes a winch drum 54 mounted for rotation between plates 55 secured to the members 52. A cable pulley 56 is journalled for rotation upon a transverse pivot pin 57 supported between a spaced and parallel pair of straps 58 extending upwardly from each side of the hitch pole 40 and shown in Figure 4. A flexible cable 59 extends around the winch drum 54, around the pulley 56 and is dead-ended as at 60 to the support frame members 51 adjacent the upper ends thereof and the winch drum may be power rotated or hand crank rotated by hand crank 61 ...... .
-depending upon design.
In operation, and when in the raised or trans-port position shown in Figure 1, the floor frame 11 engages the underside of the trailer frame lO with pins 37 preventing side-sway. ln this position, the hitch pole 40 nests between the two support members 48 and a detachable locking pin 62 (shown in Figure 4) may be engaged through the aforementioned apertures 49 at the front ends of the support members 48 and through a cor-responding and matching aperture 63 formed transversely through the hitch pole 40 thus locking same into position with the front end of the floor frame being held against the underside of the trailer frame by means of the winch assembly 53 which is a ratchet type winch and is conven-tional in construction.
When it is desired to lower the trailer floor 11 to the ground engaging position shown in Figure 2, the pin 62 is removed and the winch actuated by the crank 61 in order to lower the front end of the floor frame 11 away from the front end of the trailer frame lO. As the floor frame is lowered, the trailer frame pivots around the wheel axles 23 and the rear end of the trailer lowers towards the ground with the front end elevating due to the weight distribution of the assembly so that when the ' . - ' ' floor engage~ flat upon the ground as shown in Figure 2, the trailer frame is in the position also indicated in Figure 2.
If the hitch pole 40 has remained attached to the towing vehicle as is desirable, then this pivots at 44 and allows the front end of the floor frame to engage the ground. The design is such that the floor frame remains substantially parallel during the lowering and raising action with the trailer frame pivoting around the wheel axles.
The rear fence or enclosure member 19 may be removed and the vehicle easily driven onto the trailer floor and secured in position if desired whereupon the winch may be actuated to raise ~he trailer floor upwardly into engagement with the underside of the trailer frame as the trailer frame pivots in the opposite direction around the wheel axles 23 whereupon pin 62 may be replac-ed thus locking the assembly in position.
Unloading the trailer consists of reversing this procedure to place the trailer floor flat upon the ground.
Since various modifications can be made in my invention as hereinabove described, and many apparently widely different embodiments of same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all matter contained in the accompanying specification shall be interpreted as illustrative only and not in a limiting sense.
Claims
CLAIMS:
(1) A utility trailer comprising in combination:
a substantially rectangular trailer frame having a front end and a rear end;
ground supporting wheels including at least one wheel upon each side of the trailer frame;
means mounting the wheels on the trailer;
a substantially rectangular floor frame having a front end and a rear end;
pivot means, pivotally mounting the rear end of the floor frame to the rear end of the trailer frame for pivotal movement of the frames between a lowered position, with the floor frame in a ground-engaging position and a raised transport position with the floor frame above the ground-engaging position;
hitch pole means coupled to the floor frame for pivotal movement about a transverse axis, the hitch pole means extending forwardly from the floor frame, means for selectively securing the hitch pole means to the trailer frame when in the raised, transport position; and winch means at the front end of the trailer frame and operatively connected to the hitch pole means for drawing the front of the trailer frame and the hitch pole means towards one another so as to raise the floor frame substantially horizontally from the ground-engaging position to the transport position.
(2) A trailer according to Claim 1 wherein the wheels are substantially midway between the front and rear ends of the trailer frame.
(3) A trailer according to Claim 2 wherein the trailer frame and the floor frame are substantially the same length.
(4) A trailer according to Claim 3 wherein the means mounting the wheels of the trailer frame comprise suspension means including a hanger mounted on each side of the trailer frame, forwards of the associated wheel, a wheel support arm pivotally connected to each hanger and extending rearwardly therefrom, the wheels being rotatably mounted on the respective wheel support arms.
(5) A trailer according to Claim 4 wherein the suspension means include resilient means biasing the wheel support arms away from the trailer frame.
(6) A trailer according to Claim 5 wherein the resilient means comprise leaf springs.
(7) The trailer according to Claim 1 which includes hitch pole support means extending forwardly from said trailer frame and including a pair of spaced and parallel support members adjacent the longitudinal axis of said trailer frame and parallel thereto, diagonal braces extending rearwardly and outwardly from said support members, to the front transverse portion of said trailer frame, said hitch pole means including a longitudinally extending member engaging between said support members when said floor frame is in the raised transport position, said means selectively securing said hitch pole means to said trailer frame including a lock pin selectively engaging transversely through the support members and said longitudinally extending member when in the said raised position.
(8) The trailer according to Claim 2 which includes hitch pole support means extending forwardly from said trailer frame and including a pair of spaced and parallel support members adjacent the longitudinal axis of said trailer frame and parallel thereto, diagonal braces extending rearwardly and outwardly from said support members, to the front transverse postion of said trailer frame, said hitch pole means including a longitudinally extending member engaging between said support members when said floor frame is in the raised position, said means selectively securing said hitch pole means to said trailer frame including a lock pin engaging transversely through said support members and said longitudinally extending member when in the said raised position.
(9) The trailer according to Claim 3 which includes hitch pole support means extending forwardly from said trailer frame and including a pair of spaced and parallel support members adjacent the longitudinal axis of said trailer frame and parallel thereto, diagonal braces extending rearwardly and outwardly from said support members, to the front transverse portion of said trailer frame, said hitch pole means including a longitudinally extending member engaging between said support members when said floor frame is in the raised position, said means selectively securing said hitch pole means to said trailer frame including a lock pin engaging transversely through said support members and said longitudinally extending member when in the said raised position.
(10) A trailer according to Claim 4 which includes hitch pole support means extending forwardly from said trailer frame and including a pair of spaced and parallel support members adjacent the longitudinal axis of said trailer frame and parallel thereto, diagonal braces extending rearwardly and outwardly from said support members, to the front transverse portion of said trailer frame, said hitch pole means including a longitudinally extending member engaging between said support members when said floor frame is in the raised position, said means selectively securing said hitch pole means to said trailer frame including a lock pin engaging transversely through said support members and said longitudinally extending member when in the said raised position.
(11) The trailer according to any one of Claims 7 to 10 in which said winch means includes a winch drum, means supporting said drum for rotation above said support members, a cable pulley journalled for rotation upon said longitudinally extending hitch pole member and a cable extending from said winch drum, around said cable pulley and being dead-ended to said means supporting said drum for rotation above said support members.
(1) A utility trailer comprising in combination:
a substantially rectangular trailer frame having a front end and a rear end;
ground supporting wheels including at least one wheel upon each side of the trailer frame;
means mounting the wheels on the trailer;
a substantially rectangular floor frame having a front end and a rear end;
pivot means, pivotally mounting the rear end of the floor frame to the rear end of the trailer frame for pivotal movement of the frames between a lowered position, with the floor frame in a ground-engaging position and a raised transport position with the floor frame above the ground-engaging position;
hitch pole means coupled to the floor frame for pivotal movement about a transverse axis, the hitch pole means extending forwardly from the floor frame, means for selectively securing the hitch pole means to the trailer frame when in the raised, transport position; and winch means at the front end of the trailer frame and operatively connected to the hitch pole means for drawing the front of the trailer frame and the hitch pole means towards one another so as to raise the floor frame substantially horizontally from the ground-engaging position to the transport position.
(2) A trailer according to Claim 1 wherein the wheels are substantially midway between the front and rear ends of the trailer frame.
(3) A trailer according to Claim 2 wherein the trailer frame and the floor frame are substantially the same length.
(4) A trailer according to Claim 3 wherein the means mounting the wheels of the trailer frame comprise suspension means including a hanger mounted on each side of the trailer frame, forwards of the associated wheel, a wheel support arm pivotally connected to each hanger and extending rearwardly therefrom, the wheels being rotatably mounted on the respective wheel support arms.
(5) A trailer according to Claim 4 wherein the suspension means include resilient means biasing the wheel support arms away from the trailer frame.
(6) A trailer according to Claim 5 wherein the resilient means comprise leaf springs.
(7) The trailer according to Claim 1 which includes hitch pole support means extending forwardly from said trailer frame and including a pair of spaced and parallel support members adjacent the longitudinal axis of said trailer frame and parallel thereto, diagonal braces extending rearwardly and outwardly from said support members, to the front transverse portion of said trailer frame, said hitch pole means including a longitudinally extending member engaging between said support members when said floor frame is in the raised transport position, said means selectively securing said hitch pole means to said trailer frame including a lock pin selectively engaging transversely through the support members and said longitudinally extending member when in the said raised position.
(8) The trailer according to Claim 2 which includes hitch pole support means extending forwardly from said trailer frame and including a pair of spaced and parallel support members adjacent the longitudinal axis of said trailer frame and parallel thereto, diagonal braces extending rearwardly and outwardly from said support members, to the front transverse postion of said trailer frame, said hitch pole means including a longitudinally extending member engaging between said support members when said floor frame is in the raised position, said means selectively securing said hitch pole means to said trailer frame including a lock pin engaging transversely through said support members and said longitudinally extending member when in the said raised position.
(9) The trailer according to Claim 3 which includes hitch pole support means extending forwardly from said trailer frame and including a pair of spaced and parallel support members adjacent the longitudinal axis of said trailer frame and parallel thereto, diagonal braces extending rearwardly and outwardly from said support members, to the front transverse portion of said trailer frame, said hitch pole means including a longitudinally extending member engaging between said support members when said floor frame is in the raised position, said means selectively securing said hitch pole means to said trailer frame including a lock pin engaging transversely through said support members and said longitudinally extending member when in the said raised position.
(10) A trailer according to Claim 4 which includes hitch pole support means extending forwardly from said trailer frame and including a pair of spaced and parallel support members adjacent the longitudinal axis of said trailer frame and parallel thereto, diagonal braces extending rearwardly and outwardly from said support members, to the front transverse portion of said trailer frame, said hitch pole means including a longitudinally extending member engaging between said support members when said floor frame is in the raised position, said means selectively securing said hitch pole means to said trailer frame including a lock pin engaging transversely through said support members and said longitudinally extending member when in the said raised position.
(11) The trailer according to any one of Claims 7 to 10 in which said winch means includes a winch drum, means supporting said drum for rotation above said support members, a cable pulley journalled for rotation upon said longitudinally extending hitch pole member and a cable extending from said winch drum, around said cable pulley and being dead-ended to said means supporting said drum for rotation above said support members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 534830 CA1288736C (en) | 1987-04-15 | 1987-04-15 | Drop bed trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 534830 CA1288736C (en) | 1987-04-15 | 1987-04-15 | Drop bed trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1288736C true CA1288736C (en) | 1991-09-10 |
Family
ID=4135441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 534830 Expired CA1288736C (en) | 1987-04-15 | 1987-04-15 | Drop bed trailer |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1288736C (en) |
-
1987
- 1987-04-15 CA CA 534830 patent/CA1288736C/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |