Front tow extended saddle

Abstract

A front tow extended saddle configured for mounting a vehicle to a towing vehicle and a method of towing a vehicle using the front tow extended saddle are provided. The front tow extended saddle includes front, middle, and rear portions, with the front and rear portions extending along different planes. A protective cover extends along the front tow extended saddle and is supported above the wheels of the towing vehicle.

Description

FIELD OF THE INVENTION

This invention generally relates to towed motor vehicle transportation and tools for assisting in towing of vehicles from one location to another location.

BACKGROUND OF THE INVENTION

The economy of the United States, if not of the world, depends to a great extent on fleets of large trucks for the distribution of goods, such as foods, consumer products, durable goods, and even industrial equipment. There are many manufacturers of such trucks, which concern primarily, but are not limited to, class 7 or class 8 over-the-road trucks. Once these trucks are manufactured, they require shipment or transportation either to the carrier or other company for whom the truck was made, or to a dealer who sells or leases these trucks. The most obvious method to transport these trucks is by driving them directly to their destination. This method has disadvantages, at least because each truck requires a driver, who must be paid for his or her services and for whom return transportation must be arranged.

In order to overcome the necessity of a driver for delivering each truck, a variety of techniques have been devised to use a first truck that will carry or tow one or more additional trucks to the desired destination. One example is shown in U.S. Pat. No. 4,555,214. This patent discloses a tow bar that attaches to the fifth wheel of both the towing vehicle and the towed vehicle. The towed vehicle is towed in a rear-ward fashion behind the front vehicle. Using this technique, the towed vehicle is exposed to the full force of the air that is encountered during the tow. Any aerodynamic surfaces of the towed vehicle will be subjected to reverse stresses, i.e., the wind will impose loads on the truck at 180° from the direction expected during the design of the truck. Thus, the roof cap, side fairings, and any additional fairings, such as side and chassis fairings, should be braced or buttressed for the trip. This adds additional cost to the delivery of the truck. In addition, it is not clear that, even using both fifth wheels, the towed truck will have sufficient freedom of movement to be able to rotate slightly during turns.

Another technique is disclosed in U.S. Pat. No. 4,867,468. This patent discloses a decking bar that mounts to the truck chassis in front of and above the front axle of the towed vehicle. The decking bar has a relatively uniform cross section with differently-shaped end portions and is also relatively short. Using this technique, the towed truck is lifted vertically and is not drawn close in a horizontal direction. In order to minimize the vertical lift, the decking bar is mounted above the front axle of the towed truck, which is then suspended by mounting the decking bar to the chassis of the towed truck.

Another technique is disclosed in U.S. Pat. No. 5,873,593. This patent discloses a piggyback truck transport system. Using this system, a first towing truck mounts a second towed truck on its rear portion. The towed truck is lifted a substantial distance in a vertical direction, putting a stress on the truck and also putting the combination load at risk for violating a vertical height limit. The towed truck is lifted a substantial distance because its front wheels rest on the rear of the towing truck, thus elevating the towed truck a considerable distance. This height may limit the route which is taken in delivering the trucks. The height may be lessened by removing the front tires of the towed vehicles, which also adds to the delivery expense.

Trucks may also be transported with equipment and a method disclosed in U.S. Pat. No. 6,120,051. This patent discloses a method in which a first truck tows a second, rear-facing truck, using a special beam assembly. In this method, a boom saddle is used in conjunction with the fifth wheel of the towing truck and the fifth wheel or a support mount of the towed vehicle. The special provisions of the boom saddle allow for lateral and vertical movement of the beam assembly. While this method works well, it continues to have the disadvantage of towing a vehicle that faces rear-ward. Thus, the structure of the towed vehicle must be braced or buttressed during towing, adding to the cost of the tow. In addition, the extra wind resistance of the open rear portion of the truck detracts significantly from fuel economy during a long tow, such as from a manufacturer to a customer or dealer.

The invention provides better equipment and a better method for towing trucks. These and other advantages of the invention, as well as additional inventive features, will be apparent from the description of the invention provided herein.

BRIEF SUMMARY OF THE INVENTION

One embodiment is a front tow extended saddle. The front tow extended saddle includes a front portion for interfacing with a saddle mount or fifth wheel, the front portion having two first rails spaced apart an outer first distance between the two first rails. The extended saddle also includes a middle portion for adapting an elevation of a towed truck, the middle portion having two second rails spaced apart an inner second distance and an outer third distance between the two second rails, and a rear portion for adjustably mounting to an axle and a frame of the towed truck, the rear portion having two third rails spaced apart a fourth inner distance between the two third rails, wherein the front portion is joined at a first angle to the middle portion and the middle portion is joined to the rear portion at a second angle, the front portion is configured for mounting to a towing truck and the rear portion is configured for horizontally adjustable, rigid mounting to the towed truck, the front portion mounting configuration allowing for rotation of the front tow extended saddle with respect to the towing truck.

Another embodiment provides a front tow extended saddle. The front tow extended saddle includes a front portion for interfacing with a saddle mount or fifth wheel, the front portion including a first set of two joined rails spaced apart an outer first distance, a middle portion for adapting an elevation of a towed truck, the middle portion having a second set of two joined rails spaced apart an inner second distance and an outer third distance. The front tow extended saddle also includes a rear portion having a third set of two joined rails spaced apart an inner fourth distance for adjustably mounting to an axle and a frame of the towed truck, wherein the front portion is rotatably joined at a first angle to the middle portion and the middle portion is rotatably joined to the rear portion at a second angle, wherein the front portion is configured for mounting to a towing truck and the rear portion is configured for adjustable, rigid mounting to the towed truck, the front portion mounting allowing for rotation of the front tow extended saddle with respect to the towing truck, and wherein the first angle and the second angle may be the same or may be different.

In yet another aspect, an embodiment is a front tow extended saddle. The front tow extended saddle includes a front portion having a first set of two spaced apart bars on a first plane for interfacing with a saddle mount or fifth wheel of a towing vehicle, and a rear portion having at least a second set of two spaced apart bars not on the first plane for adjustably mounting to an axle and a frame of a vehicle to be towed, wherein the front portion is joined at an angle to the rear portion, and wherein the front portion is configured for mounting to the towing vehicle and the rear portion is configured for horizontally-adjustable, rigid mounting to the vehicle to be towed, and wherein the front portion is configured to allow rotation of the front tow extended saddle with respect to the towing vehicle.

Another embodiment is a method of preparing to tow a forward-facing towed truck with a towing truck. The method includes a step of furnishing a front tow extended saddle, the front tow extended saddle including a front portion of a first set of spaced apart rails for interfacing with a saddle mount or fifth wheel on the towing truck, a middle portion of a second set of spaced apart rails for adapting an elevation of the forward-facing towed truck, and a rear portion of a third set of spaced apart rails for adjustably mounting to an axle and a frame of the towed truck, wherein the front portion is joined at a first angle to the middle portion and the middle portion is joined to the rear portion at a second angle, and wherein the front portion is configured to allow rotation of the front tow extended saddle with respect to the towing truck and wherein the rear portion is configured for adjustable, rigid mounting to the forward-facing towed truck. The method also includes mounting the front portion to the towing truck, adjusting a horizontal position of at least two axle security assemblies, fixedly mounting the rear portion to an axle of the towed truck using the at least two axle security assemblies, adjusting a horizontal position of at least two lower security assemblies, and fixedly mounting the rear portion to a body of the towed truck using the at least two lower security assemblies, wherein front wheels of the towed truck are optionally raised from a ground surface.

Another aspect of the invention is a spacer block assembly. The spacer block assembly includes an elongated spacer block having inner and outer surfaces, a threaded fastener for positioning within the block, at least one spacer pad on at least one end of the spacer block or the fastener, and a nut to lock the fastener in position.

In another embodiment of the present invention, an improved front tow saddle is provided comprising a forward portion having two forward rails spaced apart from each other a predetermined distance and joined by a plurality of cross-members; a vertical portion comprising a plurality of structural plate members, the vertical portion being semi-detachably fixed at its upper end to the rear end of the forward portion through a plurality of bolts; and a rear portion having a plurality of rear rails spaced apart from each other a predetermined distance and joined by a plurality of cross-members, the rear portion being semi-detachably fixed at its forward end to the lower end of the vertical portion through a plurality of bolts. The forward portion is attached to a towing truck (or a first towed truck) via a fifth wheel pin mounted on a bottom plate situated toward the front end of the forward portion. The rear portion is attached to a first or second towed truck through a novel tow pin assembly disclosed herein. Alternatively or additionally, the rear portion may be attached to the first or second towed truck through an improved axle plate assembly and/or an improved rear tie-down assembly, the details of which are disclosed herein.

In another embodiment of the present invention, the front portion further comprises a security compartment mounted between or above the two front rails and between and/or surrounding one or more front cross members and including a locking bracket.

In another embodiment of the present invention, a front bracket is mounted to the front of the forward portion and includes an aperture through which may pass air supply and power lines. An aperture is also provided toward the front of the left forward rail so that the air and power lines may pass along the inside of the left forward rail toward the rear portion. A series of small rings or clamps is provided along the left forward rail and the left inner rear rail to guide the air and power lines to the rear of the saddle where they can be connected to the appropriate lines on the towed vehicle.

In another aspect of the present invention, the rails of the front and vertical portions of the saddle are provided with holes to accommodate a series of tubes that project outward from the rails. The tubes can comprise either single tubes passing through holes in the rails or multiple tube segments bolted to the outer sides of the rails. These tubes are used to drape cloth material along the sides of the saddle to protect the towed vehicle from road debris and to help maintain the cleanliness of the towed vehicle.

In another aspect of the present invention, a pair of jack legs is provided at the forward end of the rear portion and bolted to the vertical portion. The jack legs are used in loading or unloading the towed vehicle so that the weight of the towed vehicle is taken off the towing vehicle and the saddle can be safely removed from the towing vehicle or attached to the towing vehicle.

In another aspect of the present invention, a novel tow pin assembly is provided for attaching the rear portion of the saddle to a towed vehicle. The tow pin assembly comprises a tow pin mounted in a pin block and situated in a channeled rail with multiple vertical adjustment positions. The channeled rail is mounted on a pivot pin. A fork is also mounted to the channeled rail and is attached to an adjustable threaded rod. Through the adjustment of the tow pin, the fork and the threaded rod, the tow pin can be adjusted vertically and longitudinally (i.e. forward and backward) to provide the best and most secure fit possible for mounting to the frame of the towed vehicle.

In still another aspect of the present invention, an improved axle plate assembly is provided for securing the saddle to an axle of the towed vehicle. The improved axle plate assembly comprises an I-shaped axle plate mounted to the inner rear rails of the saddle. A v-notched spacer and an optional axle shim are mounted above the axle plate to receive the axle of the towed vehicle. The spacer and shim are secured to the axle plate through straight bolts, U-bolts or other known methods. Additional mounting points are provided on the axle plate so that the spacer and shim can be mounted in different positions to accommodate different axle lengths.

In still another aspect of the present invention, an improved rear tie-down assembly is provided for affixing the rear of the saddle to a frame of the towed vehicle. The tie-down assembly comprises a fork mounted vertically on a pivot pin with an adjustable threaded rod at its base (top). A paddle is provided at the top of the rod and a block with a pin is provided on each side of the paddle. Strap material is secured around one pin and then goes over the frame of the vehicle and is secured around the second pin. The rear pivot pin allows for adjustment of the strap to provide the most secure fit.

In yet another embodiment of the present invention, an improved front tow saddle is provided comprising a forward portion having two forward rails spaced apart a narrow distance within a frame of a towing vehicle and joined by a plurality of cross members; a vertical portion comprising two irregularly sized side plates affixed between the forward rails; and a rear portion comprising a left rear inner and outer rail and a right rear inner and outer rail, the left and right inner and outer rails bolted to each other, and the left and rights pairs of rails spaced apart a narrow distance within a frame of a towed vehicle and joined by a plurality of cross members.

In another aspect of this embodiment, a jack assembly may be provided between the side plates of the vertical portion. The side plates may also include a plurality of slots to accommodate varying heights of tow pin assembly for adjusting a height of the towed vehicle.

Other aspects and advantages of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings incorporated in and forming a part of the specification illustrate several aspects of the present invention and, together with the description, serve to explain the principles of the invention. In the drawings:

FIG. 1 is a top view of a first embodiment of a front tow extended saddle;

FIG. 2 is a side view of the embodiment of FIG. 1;

FIG. 3 is a top view of a second embodiment of a front tow extended saddle;

FIG. 4 is a side view of the embodiment of FIG. 3;

FIGS. 5A and 5B are an exploded perspective view and a top planar view respectively of a lower security assembly;

FIG. 6 is a front view of a security assembly including a top frame clamp and a lower frame clamp;

FIGS. 7A and 7B are front and top views respectively of the top frame clamp of FIG. 6;

FIG. 7C is an embodiment of a frame spacer useful with embodiments of the front tow extended saddle;

FIGS. 8A and 8B are a front and top view respectively of the lower frame clamp of FIG. 6;

FIG. 9 is a third embodiment of a front tow extended saddle with an offset axle security clamp;

FIG. 10 is a front view of an offset axle security clamp of FIG. 9;

FIG. 11 is a side view of a method of using the embodiment of FIG. 1; and

FIG. 12 is a perspective view of a self-lubricated king pin and saddle assembly useful for mounting embodiments of the present front tow extended saddle.

FIG. 13 is a perspective view of a fourth embodiment of a front tow extended saddle.

FIG. 14 is an exploded view of the forward portion of the embodiment of FIG. 13.

FIG. 15 is a perspective view of the vertical portion of the embodiment of FIG. 13.

FIG. 16 is an exploded view of the jack assembly of the embodiment of FIG. 13.

FIG. 17 is an exploded view of the tow pin, axle plate and tie-down assemblies of the embodiment of FIG. 13.

FIG. 18 is a perspective view of the fender tarp assembly of the embodiment of FIG. 13.

FIG. 19 is a perspective view of a fifth embodiment of a saddle of the present invention.

FIG. 20 is an exploded view of the embodiment of FIG. 19.

FIG. 21 is a side view of one of the side plates of the embodiment of FIG. 19.

While the invention will be described in connection with certain preferred embodiments, there is no intent to limit it to those embodiments. On the contrary, the intent is to cover all alternatives, modifications and equivalents as included within the spirit and scope of the invention as defined by the appended claims.

DETAILED DESCRIPTION OF THE PRESENTLY PREFERRED EMBODIMENTS OF THE INVENTION

Embodiments of the present invention are highly useful in transporting trucks and other vehicles, including new trucks, from one location to another. While embodiments are most useful in this application, they may also be used to transport other vehicles, such as used cars or trucks, from one dealer to another.

As noted above, embodiments of the front tow extended saddle are aimed at safe and economical delivery of vehicles. Accordingly, vehicles towed with the present embodiments and the present method face forward, their normal direction of travel. In this way, there are no additional side loads or wind loads placed on the vehicles. For instance, many highway class 7 and class 8 vehicle have very large aerodynamic cab features, e.g., large fairings designed to deflect the winds encountered in high speed driving. When a truck with these large surface features is towed while facing rear-ward, the beneficial effect of these features is lost. Instead, the aerodynamic features may almost be said to act as a thrust-reverser, since the wind is caught in the rear of the cab. The features and fairings may not be designed for these reversed loads. Thus, in many cases, cabs must be reinforced and buttressed to prevent damage from rear-facing tows at high speed.

In addition, the front tow extended saddle is intended to be as low-profile as possible, in the sense of minimizing the height of the towed vehicle. Minimizing the height assures the safest travel over highways that cross bridges, ramps, and other overpasses. In addition, minimizing the height also minimizes the stress to which the vehicle or truck is subjected when it is hoisted or lifted into position for the tow. Finally, the front tow extended saddle is intended to function in as economical a manner as possible. The saddle is designed with minimal vertical rise and maximum support of the towed load. One embodiment is preferably configured so that it may be folded into itself for easiest transport when it is not being used. This embodiment is preferably equipped with pivots (sleeves) and locking pins to secure the saddle in place. Other embodiments may be bolted, welded or otherwise configured in a permanent configuration that is not able to be folded into itself.

FIGS. 1-2 depict a first embodiment of a front tow extended saddle with a bent configuration that is permanent. Front tow extended saddle 10 includes a rear portion 11, a middle portion 12, and a front or forward portion 13. Rear portion 11 is mounted at a first angle A to middle portion 12, which is mounted at a second angle B to front portion 13. The left and right sides, rails, of each portion are preferably made from hollow rectangular tubing, such as 2¾″×6″ hollow structural sections (HSS), made from ¼″ plate. Other sizes and thicknesses may be used. In this embodiment, rear portion 11 is necessarily wider than the other portions so that rear portion 11 may support the frame rails of the towed truck. The sides of rear portion 11 may be secured with cross members 18 as shown. Cross members 18 preferably do not interfere with clearances for mounting rear portion 11 to the towed vehicle. The cross members may be secured to the left and right sides by welding or other structural assembly method. In one embodiment, the rails of rear portion 11 are about 48 to 56 inches long and are spaced apart about 30-32 inches (inner distance). As may also be seen in FIG. 2, rear and front portions 11, 13 are parallel to each other, while each of rear, middle, and front portions 11, 12, 13 is on a different plane.

Middle portion 12 is also preferably made from left and right sides of hollow rectangular tubing, secured to each other by cross member 12a, preferably by welding. Middle portion 12 may be narrower than rear portion 11, and may be wider than front portion 13. In one embodiment, the rails of middle portion 12 are about 36-40 inches long and are spaced apart to that their outer width (distance on the outer sides of the rails) is slightly less than the inner distance between the rails of the rear portion.

Front portion 13 is narrower yet than middle section 12, and front portion 13 includes left and right sides made from hollow structural sections as described above. The sides are secured to each other by cross members 19. In one embodiment, the rails of front portion 13 are about 34-38 inches long and are separated such that the outer distance between the rails is just less than the inner distance of the rails of middle portion 12. The hollow tubing used for the rails in some embodiments is about 6 inches high and about 2¾ inches wide. In these embodiments, each successive pair of rails is about 5½ inches, or a little more clearance for easier handling, narrower or wider than the next pair. The front portion also includes a mount 14 for securing to the towing vehicle. In this embodiment, the rear, middle, and front portions are preferably rigidly assembled to each other by welding. Other methods, such as fasteners, may also be used. Mount 14 includes a king pin for directly mounting to a fifth wheel of the towing vehicle, also allowing for rotation of the extended saddle with respect to the towing vehicle. A small amount of rotation is desirable in order to allow the towed vehicle to more easily accomplish turns during the towing procedure.

Rear portion 11 of front tow extended saddle 10 mounts the towed truck using security assemblies that attach to the towed truck frame and axle security assemblies that attach to the front axle(s) of the towed truck. Accordingly, the left and right side rails of rear portion 11 include a plurality of mounting holes 17. The placement of the holes allows the user to select the most appropriate pattern for mounting to a particular vehicle. It is understood that the embodiments described herein are applicable to class 7 and 8 over-the-road trucks, although other vehicles may also be towed using these embodiments. These trucks may vary in their configurations, i.e., a standard front axle, placed about 40″ from the front of the truck, or a set-back axle, 43-46″ from the front. The axle itself may be a standard axle, with an I-beam cross section, or may be a Henderickson axle, with a cross section shaped more like a square. The positions of the lower security assemblies, attaching to the frame, and the axle security assemblies, attaching to the axle, should be horizontally adjustable with respect to rear portion 11 to accommodate these differences.

Another embodiment of a front tow extended saddle is depicted in FIGS. 3-4. In this embodiment, economy of operation is emphasized, because the front tow extended saddle 30 is made foldable or collapsible by incorporating pivots between the three portions, rear portion 31, middle portion 32, and front portion 33. Rear portion 31 is preferably made from hollow structural sections, such as hollow square tubing, the left and right sides preferably secured with at least one cross member 43, the cross member placed so that it does not interfere with placement of the lower security assemblies 36 or axle security assemblies 35, which may be similar to those described above. Rear portion 31 mounts the axle security assemblies and lower security assemblies using a plurality of mounting apertures 37. The security assemblies are preferably mounted to rear portion 31 using the apertures and bolts (not shown). There are also apertures for insertion of locking pins 40.

Middle portion 32 is pivotally secured to rear portion 31 by a pivoting sleeve 38 and is collapsibly secured by locking pins 40. Middle portion 32 is pivotally secured to front portion 33 by a pivoting sleeve 39 and is collapsibly secured by locking pins 41. In addition to the pivoting sleeve, each pivot may also include a solid pivot pin within the sleeve to insure the strength of the pivot during towing operations. The front tow extended saddle is secured by locking pins 40, 41 when the saddle is intended for towing a truck. In the extended position, front and rear portions 33, 31 are preferably parallel, i.e., parallel to each other.

After the tow is complete, saddle 30 may be collapsed or folded by removing the locking pins and using the pivoting sleeves to fold the saddle into a much smaller space for a return trip. For instance, if two trucks are being delivered, one towing and one towed, the front tow extended saddle may be returned in a pick-up truck or much smaller vehicle, rather than waiting for a return trip by a large truck. Because of the much smaller volume of the folded saddle, it is possible to return several of the folded saddles in a single return trip, by either a large truck or a smaller truck capable of handling the load.

For this reason, in a preferred embodiment, the outer width of the middle portion is less than an inner width of the rear portion, and the outer width of the front portion is less than an inner width of the middle portion. In other embodiments, there may be only a single collapsible or pivoting joint, e.g., there may be an embodiment in which an inner width of the middle portion is less than an outer width of the front portion, and there is only a forward pivoting junction between the middle and front portions. There may also be another embodiment in which an outer width of the middle portion is less than an inner width of the rear portion and there is only a single pivoting point, a rear pivoting junction between the rear and middle portions.

In the preferred embodiment, the left and right rails of middle portion 32 are joined by cross member 46, and the left and right rails include a plurality of apertures for insertion of locking pins 41. Front portion 33 includes left and right rails or sides that are secured to each other with cross members 44. Front portion 33 also includes mount 34 for mounting to the towing vehicle. Mount 34 in this embodiment is an I-beam configuration for mounting via J-claws into a saddle mount, such as shown in FIG. 12, and disclosed in U.S. Pat. No. 6,109,642, which is hereby incorporated by reference in its entirety, as though each page and figure of the '642 patent were set forth in full in this patent. The saddle mount is preferably secured to the towing truck and the front tow extended saddle is then secured to the saddle mount. The extended front tow saddle mount may have a fifth wheel pin or a king pin for direct insertion into a fifth wheel, and also allowing for rotation. A small amount of rotation is desirable in order to allow the towed vehicle to more easily accomplish turns and maneuvering during the towing procedure.

The front tow extended saddle is secured to the frame of the truck with preferably at least four lower security assemblies. As is well known, truck frames include large, long C-shaped steel members, known generally as channels. The towed truck is mounted to the saddle by two lower security assemblies mounted to a channel on the left side of the truck and two lower security assemblies mounted to a channel on the right side of the truck. A lower security assembly 16 is depicted in FIGS. 5a and 5b. The assembly includes a central structural portion 51, preferably a main hollow structural section 51 and a peripheral flange 52. Flange 52 may be mounted to main section 51 by welding and by webs 54. Webs 54 are preferably sufficiently wide to reinforce the joint and sufficiently narrow so as not to interfere when a user tightens the nuts around the threaded portions of two U-bolts 50. Flange 52 includes apertures 53. U-bolts 50 are mounted around the truck channel and are extended through apertures 53, and are then tightened with the nuts, vertically securing assembly 16 to the rear portion of the front tow extended saddle. Assembly 16 is locked into place horizontally to the rear portion by pins inserted through apertures 57 in the security assembly and apertures 17, 37, in the front tow extended saddles 10, 30, 90. Axle security assemblies 15 are similar in structure to the lower security assemblies.

In some instances, it is difficult to place a U-bolt around a channel or frame of the vehicle to be towed. This may occur because of lack of clearance or merely awkward placement of engine components 55 in the engine compartment. In these instances, it may be convenient to use additional clamps and straight bolts, in place of the normal, straight-forward U-bolts, in addition to a lower security assembly. One such situation is depicted in FIG. 6. Security assembly 60 includes a lower frame clamp 61, an optional top frame clamp 62, lower security assembly 16, first and second bolts 67, 68, and securing nuts 69. In use, the user places lower frame clamp 61 around truck frame channel 56. As may be seen more clearly in FIGS. 8a and 8b, assembly 60 will preferably include two top frame clamps, a single lower frame clamp 61, two first and second bolts 67, 68, with their nuts, and a single lower security assembly 15.

In this embodiment, viewed from the front of the towed vehicle (not shown), lower frame clamp 61 is mounted on the left side of the towed vehicle and the frame clamp is open on the left side, allowing the lower flange of channel 56 to enter clamp 61. Mounted on the same open, left side is top frame clamp 62, which is mounted to a convenient structural hard point, such as a top frame rail flange. Top frame clamp 62 is then secured to lower frame clamp 61 and lower security assembly 15 by longer bolt 67 and nut 69. On the other side, lower frame clamp 61 is secured to lower security assembly 15 by shorter bolt 68 and nut 69. The assemblies are preferably mounted so that frame 56 cannot escape lower frame clamp 61 during the normal stresses and loads encountered during a relatively high-speed tow over a long distance.

Top frame clamp 62 and lower frame clamp 61 are shown in greater detail in FIGS. 7a-7b and FIGS. 8a-8b, and are further explained here. Top clamp shown in FIGS. 7a-7b, is intended to mount to a structural point and help secure the towed vehicle. Clamp 62 is a single structural piece that includes a top portion a lower bolt-mounting portion 64, and reinforcing webs 66. There is also an aperture 65 for a bolt to pass through. Top portion 63 is rounded to form about a 180° curve preferably having a 1½ inch diameter. Lower frame clamp 61, FIGS. 8a-8b, is also a single structural piece that is preferably, but not necessarily made from several components. Mounting plate 81 is made from a rectangular piece of steel, shorter in the direction of truck travel, as shown, and includes apertures 82 for bolts. Clamp lower jaw 83 is preferably integral with or welded or otherwise secured to mounting plate 81. Lower jaw 83 is also preferably integral with jaw web 84 and upper jaw 85, leaving area 86 open for engaging a frame member of a truck.

One method of using the front tow extended saddle includes a way to preserve the dimensional integrity of the truck frame elements, typically made with a C-channel cross-section as shown in FIG. 6. The method uses an inner frame spacer block assembly 70, as depicted in FIG. 7c, to reinforce the truck frame elements. A spacer block 71 is preferably about 8-10 inches in height, depending on the distance between the inner flange surfaces of the channel, and may be about 2 inches square to 4 inches square, or may alternately have a rectangular cross section. Other heights and cross sections may be used. The spacer block is preferably threaded on its inner surface to accommodate an expansion bolt 75 for adjusting an overall height of the assembly. Bolt 75 preferably has an expansion pad 73 on its upper surface to spread the load that is imposed when the spacer block assembly is inserted between flanges and tightened.

Optionally, there may also be an expansion pad 72 on the opposite side of spacer block 71. The spacer block assembly is placed between the flanges and the height adjusted by threading bolt 75 further into or out of block 71. When the height adjustment is correct, expansion adjustment nut 74 is tightened. One or more inner frame spacer block assemblies may be used to preserve the dimensional integrity of the truck frame components, such as channels. The inner frame spacer block assembly may also be used with structural members having cross section of different shapes, such as I-beams.

It is understood that the front tow extended saddle described herein may have many embodiments and may be used in many ways. Another embodiment of a front tow extended saddle is depicted in FIGS. 9 and 10. In this embodiment, front tow extended saddle 90 is equipped with two offset axle security assemblies 97. This embodiment is used for applications in which symmetrical axle security members 15, described above, will not fit the truck for which a front tow is desired. Extended saddle 90 includes rear portion 91, middle portion 92, and front portion 93. Middle portion 92 is preferably pivotally mounted to rear portion 91 and front portion 93 by pivot pins 94, 95, as described above. Lower security assemblies 96 are used to secure rear portion 91 to the truck frame, each using two inverted U-bolts and nuts, as are offset axle security assemblies 97.

Each offset axle security member 97 includes a mounting portion 97a, flange 98, apertures 99, and a reinforcing web 97c. Inner portion 97b of flange 98 includes apertures 97d for the mounting U-bolts. Mounting portion 97a is preferably made from hollow square or rectangular tubing and, similar to the other security assemblies, has inner dimensions that allow security member 97 to slide along the rails of rear portion 91. Flange 98 is preferably welded or otherwise rigidly secured to mounting portion 97a, as is reinforcing web 97c. Web 97c is preferably ¼″ steel plate and is wide enough to act as an excellent reinforcing member, and narrow enough so as not to interfere with tightening the nuts on the U-bolts. It is understood that the lower security members and the axle security members may take on a number of forms in the embodiments of the front tow extended saddle, not all of which are depicted herein simply because of their multiplicity.

FIGS. 11-12 depict a use for the front tow extended saddle 10. A first truck T1, a towing truck, is preferably equipped with a fifth wheel 101 or a saddle mount 110 as described above. If the towing truck has a fifth wheel, a fifth wheel pin 105 on the front tow extended saddle is mounted to the fifth wheel 101, allowing for rotation during transport. If the towing truck does not have a fifth wheel, saddle mount 110 may be mounted on the towing truck to connect the front tow extended saddle. Saddle mount 110 includes a saddle body 112, a saddle head surface plate 114, a saddle head 116, kingpin 118, and J-claws 120 for grasping the mounting portion 14 of front tow extended saddle 10. The rear portion of front tow extended saddle 10 is then attached to towed truck T2.

Embodiments are not limited to a single towed truck, since more than one truck may be towed, so long as the total length limitation for a combination of towing and towed vehicles, currently 97 feet, is not exceeded. As depicted in FIG. 11, the front tow extended saddle 10 allows for adjusting the distance between the towed vehicle and the towing vehicle, allowing a somewhat greater distance between the vehicles than the prior art. In either embodiment, with a fifth wheel or a saddle mount, the front axle of the truck being towed, and thus the front wheels, are lifted off the ground only about 8-12 inches, thus minimizing any height increase of the vehicle being towed.

In reference to FIGS. 13 and 14, a fourth embodiment of a front tow saddle 200 of the present invention comprises a forward portion 210, vertical portion 300, and rear portion 500. Forward portion 210 comprises left and right rails 212 and 214, respectively, and one or more horizontal cross members 216 which are preferably fashioned from rectangular cross-section tubing. The cross members are preferably bolted to the left and right rails. At the front end of forward assembly 210 is a front plate bracket 218 bolted to the left and right rails. Front plate bracket 218 includes an aperture 220 for connecting the saddle to a towing vehicle via a king pin as is known in the art. Front plate bracket 218 may also optionally include a bracket panel 222 which can house a GPS tracking device or similar useful articles.

Powertrain bracket 224 is connected to the left rail 212 through the front plate bracket 218. Powertrain bracket 224 includes an aperture 226 through which pass the electrical wiring and air brake tubing for providing electrical power and braking capacity to the towed vehicle(s). These connections pass through a similar aperture 228 toward the front of forward left rail 212 so that the connections may run back along the inside of left rail 212, down the vertical portion 300 and back along the rear portion 500.

Another novel feature of the improved saddle, incorporated preferably into the forward portion, is a security chamber 230. Security chamber 230 comprises a chamber bracket 232, and a lid 234 connected to bracket 232 along forward edges 236, 238, respectively. The bracket is designed so that it can be bolted to the inside of left and right rails 212, 214. Depending on the size desired for the security chamber, it can be sized so that it surrounds one or more of the cross members 216. Lid 234 and bracket 232 also preferably comprise locking tabs 240 and 242, respectively, so that a lock can be provided to secure lid 234 and bracket 232 together.

Yet another novel feature of the fourth embodiment is a fender tarp to protect the towed vehicle from dirt or damage from road debris, insects and the like that are kicked up by the wheels of the towing vehicle. Toward the forward end of front assembly 210, hollow tube 250 passes through holes 252, 254 in the left and right rails, respectively, and extends several feet horizontally beyond each rail. A corresponding tube 260 passes and extends through holes 262 and 264 toward the rear of forward portion 210. And a third tube 270 passes and extends through holes 272 and 274 toward the lower area of vertical portion 300. Alternatively, each of tubes 250, 260 and 270 can comprise multiple tube segments which are bolted to the outer sides of the rails through means known in the art.

With respect to FIG. 18, left and right fender tarps 280 and 290 are disposed on the left and right sides, respectively, of saddle 200. Tarps 280 and 290 each are provided with an eyehole formation so as to be anchored on tube 250. The tarps then pass over tube 260 and extend downward where they are anchored on tube 270. One or both of the anchor ends of tarps 280 and 290 are preferably provided with adjustment means known in the art, such as a sewn bungee cord, so that the tarps can be adjusted, loosened or tightened as necessary to accommodate differences in the towing or towed vehicle, or the length of the saddle.

As shown in FIG. 15, vertical portion 300 comprises left and right side panels 310 and 320, rear panel 330 and front panel 340. The side panels 310 and 320 are affixed to left and right front rails 212, 214, respectively, by a plurality of huck bolts 350. Huck bolts are known in the art as a type of bolt that uses special equipment (not shown) to both insert and remove the bolt, in the removal process shearing off and destroying the bolt. The use of huck bolts provides a more secure attachment of the vertical assembly to the front member than standard bolts, yet allows for the two assemblies to be detached reasonably quickly if necessary, unlike welding. Thus, the vertical portion is semi-detachably fixed to the forward portion.

Rear panel 330 is also attached to side panels 310 and 320 through huck bolts, as is front panel 340. Front panel 340 has a lower height than the other panels of vertical assembly 300 in order to allow clearance for forward portion 210.

Two jack assemblies 360 and 362, known in the art, are attached to side panels 310 and 320, respectively, through front panel 340 via jack brackets 370 and 372, respectively, using a combination of huck and/or Grade A bolts. Jack brackets 370 and 372 preferably may include apertured areas 374 to save on material costs. A jack shaft 380 extends across vertical portion 300 to jack crank 382 via pin 384 so that jack legs 390 and 392 can be raised or lowered in concert.

As shown in FIG. 17, left and right tow pin assemblies 400 and 410, respectively, are also attached preferably to the vertical portion 300. Each tow pin assembly comprises a bracket 412 bolted to one or more of the left or right panel 310, 320 and the rear panel 330. Bracket 412 can also be configured to be bolted to left or right outer rail 510, 520. Bracket 412 includes an aperture 414 and sleeve 416 through which passes fork 418. Fork 418 includes a threaded portion and adjustment nut 420 so that the longitudinal position of fork 418 can be adjusted.

Tow pin stands 430 are mounted between left and right inner and outer rails just behind brackets 412. Each stand comprises a vertical bracket 432 which includes a series of opposite spaced apertures 434. Pin 436 is used to connect fork 418 to stand 430 through one set of apertures, and another pin 438 is used to connect stand 430 to tow pin unit 440. Tow pin unit 440 is then inserted into the towing holes of the towed vehicle. Through the vertical adjustment capabilities of tow pin unit 440 and fork 418 in tow pin stand 430, and the longitudinal adjustment capability of fork 418, the tow pins can be adjusted to account for great variation in the location of the tow pin holes of the towed vehicle, relative to the saddle.

Rear assembly 500 comprises left outer rail 510 and left inner rail 512, and right outer rail 520 and right inner rail 522. A series of latitudinally oriented brackets 530, each having an aperture 532 to save material cost, may preferably be mounted between the left and right pairs of rails to strengthen their support.

Disposed preferably toward the middle rear of rear portion 500 is axle support assembly 550. Axle support assembly 550 comprises 1-plate 560 which is sized to be situated across inner rails 512 and 522. Optional axle shims 562 and v-notched spacers 564 are situated above 1-plate 560 for receiving a forward axle of a towed vehicle. After the axle is situated, the spacer and shim are secured to the plate through U-bolts 566 or other suitable methods.

In addition, improved rear tie-down assemblies 600 are is provided for affixing the rear of the saddle to a frame of the towed vehicle. Each tie-down assembly 600 comprises a fork 610 mounted vertically on a pivot pin 620 with an adjustable threaded rod 630 at its base (top). A paddle 640 is provided at the top of the rod and a block 650 with a pin 620 is provided on each side of the paddle 640. Strap material is secured around one pin and then goes over the frame of the vehicle and is secured around the second pin. The rear pivot pin 620 allows for adjustment of the strap to provide the most secure fit.

With reference to FIGS. 19-21, a fifth embodiment of the saddle of the present invention is disclosed. As shown in FIG. 19, a saddle 700 comprises forward portion 710, vertical portion 800 and rear portion 900. Forward portion comprises left and right forward rails 712 and 714, respectively, which are joined by a plurality of cross members 716. A front bracket 718 is secured to the forward end of forward portion 710 and includes means for attaching to king pin or fifth wheel as is known in the art. A security compartment 720 may optionally be mounted on rails 712 and 714. Although not shown in this figure, apertures in rails 712 and 714 may be provided to accommodate tubes on which to dispose a fender tarp assembly similar to that disclosed with respect to the fourth embodiment disclosed above.

With further attention to FIGS. 20 and 21, the vertical portion comprises side plates 810 and 820. These are irregularly shaped so as to include an upper region 812, a middle region 814, and a lower region 816, wherein the upper region includes an area forward of the middle region, and the lower region includes an area to the rear of the middle region. Middle region 816 also includes a plurality of slots 818 for mounting a bracket 830 used to accommodate a rod 840. A plurality of tow pins 850, similar to those disclosed with respect to the fourth embodiment, are disposed on the rod 840 for adapting a height of the towed vehicle.

A jack assembly 860 known in the art is disposed between the two side plates of the vertical portion. The jack assembly is used to lower or raise the towed vehicle for loading or unloading.

Rear portion 900 comprises pairs of left and right rails. As best seen in FIG. 20, left rear inner rail 910 and left rear outer rail 912 are bolted together, sandwiching the lower region of left side plate 810. Similarly, right rear inner rail 920 and right rear outer rail 922 are bolted together, sandwiching the lower region of right side plate 820. Preferably, inner rear rails 910 and 920 extend further rearward than outer rear rails 912 and 922. The left and right rear rails are spaced apart a narrow distance and fit within the frame of the towed vehicle and are joined by plurality of cross members 930.

V-notched blocks 950 may be mounted onto the left and right rear outer rails 912 and 922 to receive a front axle of the towed vehicle. The axle can be secured in the blocks through U-bolts 960 or other suitable methods known in the art. The rear ends of the inner rear rails 910 and 920 are bolted together by an end cross member 970, as shown in FIGS. 19 and 20. A connector 972 having a pair of through holes 974 is secured between upper edges 910a and 920a of the respective inner rear rails 910 and 920. Specifically, the connector 972 is provided with a set of side receivers or indents 976 for receiving at least a portion of the upper edges 910a and 920b of the respective inner rear rails 910 and 920, as shown in FIG. 19. The end cross member 970 can block or interfere with rearward movement of the connector 972 along the upper edges 910a and 920a of the respective inner rails 910 and 920, as shown. However, no structure is shown along the upper edges 910a and 920a of the respective inner rear rails 910 and 920 to block or interfere with forward movement of the connector 972 along the upper edges 910a and 920a of the respective inner rails 910 and 920. The width of the connector 972 is less than the width of the inner rails 910 and 920 when connected together, as seen in FIG. 19, to provide spacing to avoid the side plates 930(a)

(FIG. 20) of the cross members 930 blocking or interfering with forward movement of the connector 972. Also, the connector 972 extends mainly above the upper edges 910a and 920a of the respective inner rails 910 and 920 so that the cross members 930 do not block or interfere with forward movement of the connector 972. In addition, a bar 980 is associated with or cooperates with the rear portion 900 of the tow saddle 700 (e.g. connector 972) for securing to a vehicle being towed. The bar 980 includes pins 982 and holes 984 for securing same.

The embodiments described above are only a few of the many possible configurations and uses of the front tow extended saddle. The angled construction disclosed is very useful for mounting a towed truck to a towing truck while minimizing the increase of height of the towed vehicle. The preferred mounting is to lift the front wheels of the towed vehicle off the ground, thus minimizing wear and stress on the towed vehicle while maximizing control by the towing vehicle. If desired, all wheels of the towed vehicle can remain on the ground during towing, but lifting the front wheels off the ground is the preferred method.

All references, including publications, patent applications, and patents cited herein are hereby incorporated by reference to the same extent as if each reference were individually and specifically indicated to be incorporated by reference and were set forth in its entirety herein.

The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention (especially in the context of the following claims) is to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The terms “comprising,” “having,” “including,” and “containing” are to be construed as open-ended terms (i.e., meaning “including, but not limited to,”) unless otherwise noted. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention.

Preferred embodiments of this invention are described herein, including the best mode known to the inventors for carrying out the invention. Variations of those preferred embodiments may become apparent to those of ordinary skill in the art upon reading the foregoing description. For example, a structure may be attached to the various portions of the front tow saddle to interconnect them, such as a structure attached to the front and forward portions that defines one or more axially aligned circular openings. The inventors expect skilled artisans to employ such variations as appropriate, and the inventors intend for the invention to be practiced otherwise than as specifically described herein. Accordingly, this invention includes all modifications and equivalents of the subject matter recited in the claims appended hereto as permitted by applicable law. Moreover, any combination of the above-described elements in all possible variations thereof is encompassed by the invention unless otherwise indicated herein or otherwise clearly contradicted by context.

Claims

1. A front tow saddle comprising: a forward portion configured for mounting to a towing vehicle;a rear portion configured for mounting with a towed vehicle; anda middle portion extending from a rear end of the forward portion at a first angle and extending from a front end of the rear portion at a second angle, the middle portion and the rear portion are rigidly coupled to each other, the middle portion and the forward portion are coupled to each other in part via three circular apertures that are axially parallel to each other;wherein each of the first and second angles are greater than zero degrees.

2. The front tow saddle of claim 1, wherein the first and second angles are the same.

3. The front tow saddle of claim 1, wherein the first and second angles are greater than zero relative to a longitudinal axis defined by front and rear portions, respectively.

4. The front tow saddle of claim 1, the middle portion comprising an upper section, a central section and a lower section, wherein the upper section extends horizontally from the central section towards the towing vehicle, and wherein the lower section extends horizontally from the central section towards the towed vehicle.

5. The front tow saddle system of claim 4, the rear end of the forward portion is attached to the upper section of the middle portion, and the front end of the rear portion is attached to the lower section of the middle portion.