This disclosure relates to systems and methods for flat towing a vehicle, and more particularly to adapters for coupling a tow bar to a vehicle frame.
Many vacationers and travelers like to tour and sightsee in their cars or vehicles and oftentimes buy or rent a motorhome or a recreational vehicle (RV) to enhance their comfort and enjoyment. For extended vacations, the motorhome or the RV may be hooked up to tow another vehicle (e.g., their car or vehicle, a cargo trailer, a smaller vehicle, or a sports utility vehicle (SUV)). When parked, the vehicle being towed can be disconnected from the towing vehicle to allow the vacationers and travelers to take excursions or drive into town and have a more mobile, fuel efficient, and compact vehicle while the motorhome or the RV is parked at a campground, for example.
In many situations, the vehicle being towed (sometimes referred to as a towed vehicle) is being flat-towed (i.e., all wheels are on the ground). In order to couple the towed vehicle to the towing vehicle in the first place, it is necessary to install an aftermarket flat tow base plate onto the vehicle front bumper, which can be time consuming, complex, and costly. Often, these aftermarket flat tow base plates require that several front-end components of the vehicle be removed in order to access the attachment points of the flat tow base plates to the vehicle. Therefore, what is needed is a vehicle that has a built-in tow bar attachment point that requires minimal time and effort for attaching a tow bar when it is desired to flat tow the vehicle.
In general, aspects of the subject matter described in this disclosure may be embodied in a vehicle. The vehicle includes a body structure. The body structure includes a front side member support having an end portion, a bumper beam mounted to the end portion of the front side member support, and a front side member plate mounted to the end portion of the front side member support.
These and other embodiments may optionally include one or more of the following features.
The body structure can further include a nut fastener mounted to the front side member plate. The nut fastener can be welded to the front side member plate. The body structure can further include a towing bracket adapter threadingly coupled to the nut fastener. The towing bracket adapter can define a bore that is forward-facing when the towing bracket adapter is attached to the nut fastener. The bore can be configured to receive a towing bracket for flat towing the vehicle.
The front side member plate can include a central portion, an aperture disposed in the central portion, and a flange portion extending from the central portion. The front side member plate can be mounted to the end portion of the front side member support via the flange portion. The nut fastener can extend through the aperture. The nut fastener can extend from an outer surface of the central portion of the front side member plate.
The body structure can further include a front bumper mounting plate mounted to the end portion of the front side member support. The front bumper mounting plate can be located forward of the front side member plate. The front bumper mounting plate can be located between the bumper beam and the front side member plate. The bumper beam can be mounted to the end portion of the front side member support via the front bumper mounting plate. The front bumper mounting plate can include a central portion, an aperture disposed in the central portion, and a flange portion extending from the central portion. The front bumper mounting plate can be mounted to the end portion of the front side member support via the flange portion. The nut fastener can extend through the aperture.
The towing bracket adapter can include a tab disposed in the bore that is configured to stop the towing bracket from exiting the bore in response to the towing bracket being rotated to a locked rotational position.
The vehicle can further include a vehicle panel and an aperture disposed in the vehicle panel, and the aperture is aligned with the towing bracket adapter.
In various embodiments, the body structure can further include a towing bracket adapter attached to the front side member plate. The towing bracket adapter can be permanently fixed to the front side member plate. The towing bracket adapter can be welded to the front side member plate. The towing bracket adapter can extend through the front side member plate. The towing bracket adapter can extend through the front bumper mounting plate. The vehicle can further include a vehicle panel and an aperture disposed in the vehicle panel, and the aperture is aligned with the towing bracket adapter.
In various embodiments, a nut fastener is mounted to the front side member plate and a vehicle panel has an aperture aligned with the nut fastener. The vehicle can further include a flat tow base plate including a lateral beam and a pair of longitudinal beams extending from the lateral beam. The vehicle can further include a fastener configured to be received within a first longitudinal beam of the pair of longitudinal beams, the fastener is configured to be threadingly coupled to the nut fastener. The vehicle can further include a pair of towing brackets configured to be coupled to the lateral beam for flat towing the vehicle. The first longitudinal beam can be configured to extend through the aperture in the vehicle panel when the flat tow base plate is installed to the vehicle.
The foregoing features and elements may be combined in various combinations without exclusivity, unless expressly indicated herein otherwise. These features and elements as well as the operation of the disclosed embodiments will become more apparent in light of the following description and accompanying drawings.
Other systems, methods, features, and advantages of the present invention will be apparent to one skilled in the art upon examination of the following figures and detailed description. Component parts shown in the drawings are not necessarily to scale and may be exaggerated to better illustrate the important features of the present invention.
A vehicle of the present disclosure is configured to be flat towed. The vehicle includes a body structure including a front side member support having an end portion and a bumper beam mounted to the end portion. The body structure further includes a front side member plate mounted to the end portion of the front side member support. In some embodiments, a nut fastener is attached to the front side member plate (e.g., via a weld or the like). A towing bracket adapter can be threadingly (e.g., removably) coupled to the nut fastener. A tow bar base plate can be mounted to the nut fastener via one or more fasteners. In other embodiments, a towing bracket adapter is mounted directly to the front side member plate (i.e., without the nut fastener). For example, the towing bracket adapter can be permanently mounted to the front side member plate via a weld. The towing bracket adapter is mounted behind the front fascia of the vehicle.
Particular embodiments of the subject matter described in this disclosure may be implemented to realize one or more of the following advantages. A vehicle of the present disclosure eliminates the need for users to install aftermarket flat tow attachment means onto the vehicle front bumper when the user wants to flat tow their vehicle. Moreover, tow bar attachment assemblies described herein provide aesthetically pleasing (e.g., due to being concealed by a front vehicle panel) attachment points while also providing ease of access to the attachment points without having to perform disassembly of any major vehicle components.
As is seen in the exemplary illustrated embodiment, the tow bar 1 generally includes a shank 10 that is sized and shaped to be inserted into a receiver 2 of a towing hitch 3 mounted on the towing vehicle 5. A proximal end of the shank 10 is shaped and sized to releasably connect to (e.g., insert into) the receiver 2 of the towing hitch 3. The receiver 2 can be a hollow rectangular tube. The inner dimension of the receiver 2 can be slightly larger than the outer dimension of the shank 10 so as to allow the shank 10 to be slidably inserted into and received by the receiver 2. The shank 10 can be inserted into the hitch receiver 2 and held in the receiver 2 by way of a locking pin (not shown) inserted into aligned holes, respectively, located in the lateral sides of the shank 10 and the receiver 2. For example, a hole 9 is illustrated in a lateral side of the receiver 2 which can align with a similar hole in the shank 10 whereby a locking pin can be inserted therethrough.
The tow bar 1 further includes a pair of swing arms 43 configured to be connected to towing brackets 4 of the towed vehicle 6. Accordingly, the tow bar 1 is configured for connecting the towing hitch 3 on the towing vehicle 5 to the towed vehicle 6 having two towing brackets 4.
In practical use, the towing vehicle 5 will normally be situated upon a roadway surface considered horizontal in reference to the towing vehicle 5. Thus, the directional terms “vertical” and “horizontal” and the like are used to describe the tow bar 1 and its components with respect to the orientation illustrated in
In various embodiments, each swing arm 43 can be extendable and can be locked to hold the swing arm at its extended length. The distal end 42 of each swing arm 43 can include a coupler 66 for connection to one of the towing brackets 4 on the towed vehicle 6.
With reference to
The body structure 212 can further include a front side member support 222. The front side member support 222 can be attached to the front side member extension 214. The front side member support 222 can be a portion of the front side member extension 214 adjacent to the bumper beam 216. The front side member support 222 can be configured to absorb energy when the vehicle 200 is subjected to an external force. The bumper beam 216 can be configured to receive the external force and to distribute the external force to one or more front side member supports 222.
The tow bar attachment assembly 218 can extend through the bumper beam 216. The bumper beam 216 can include an aperture 217 configured to accommodate the tow bar attachment assembly 218.
With additional reference to
With combined reference to
In various embodiments, a front bumper mounting plate 240 is coupled to the front side member support 222. The front bumper mounting plate 240 can be located forward of the front side member plate 228. The front bumper mounting plate 240 can be located between the front side member plate 228 and the front bumper beam 216. The front bumper mounting plate 240 defines a forward-facing aperture 242 (also referred to herein as a mounting plate aperture) configured to receive the nut fastener 232. The front bumper mounting plate 240 has a central portion 244 and a flange portion 246. The central portion 244 defines the aperture 242 and the flange portion 246 is attached to the front side member support 222. The front bumper mounting plate 240 can be made of a metal material, such as steel or an aluminum alloy. Alternatively, the front bumper mounting plate 240 can be made of a reinforced or unreinforced nonmetal material. The nut fastener 232 is attached to the central portion 244 of the front bumper mounting plate 240 and extends from an outer surface 247 of the central portion 244 of the front bumper mounting plate 240. The nut fastener 232 can be attached in the center of the central portion 244 of the front bumper mounting plate 240 or at any other location in the central portion 244 of the front bumper mounting plate 240. The nut fastener 232 can be attached to the central portion 244 of the front bumper mounting plate 240 via a weld, a mechanical fastener, or any other suitable attachment method.
A front bumper stopper 248 of the front bumper extension 220 and/or the front bumper beam 216 can be coupled to the front bumper mounting plate 240. The front bumper stopper 248 can be coupled to, and/or be part of, the front bumper extension 220. The front bumper stopper 248 can be coupled to, and/or be part of, the front bumper beam 216. The front bumper stopper 248 can be coupled to an inside surface (e.g., a rear facing surface) of the front bumper mounting plate 240. The front bumper beam 216 can be coupled to the front bumper mounting plate 240 via the front bumper stopper 248.
The nut fastener 232 is configured to attach a towing bracket adapter 250 to the nut fastener 232. The nut fastener 232 can be configured with an internal thread for attaching the towing bracket adapter 250. The towing bracket adapter 250 can be configured with an external thread configured to engage the internal thread of the nut fastener 232 when the towing bracket adapter 250 is attached to the nut fastener 232. The towing bracket adapter 250 can be attached to the nut fastener 232 via engagement of the external thread of the towing bracket adapter 250 with the internal thread of the nut fastener 232. Accordingly, the towing bracket adapter 250 can be a thread in adapter. Stated differently, the towing bracket adapter 250 can be threadingly coupled to the nut fastener 232. Alternatively, the towing bracket adapter 250 can be attached to the nut fastener 232 via any other suitable attachment method.
The towing bracket adapter 250 can extend beyond (i.e., in the forward direction) the front bumper beam 216 toward the front bumper cover 202 and/or the lower grille panel 206. In various embodiments, the towing bracket adapter 250 terminates just aft of the front bumper cover 202 and/or the lower grille panel 206 so that the towing bracket adapter 250 can be hidden (i.e., covered) behind the front bumper cover 202 and/or the lower grille panel 206. The towing bracket adapter 250 aligns with the aperture 208 such that the towing bracket 210 can extend from the towing bracket adapter 250 through the aperture 208 when the towing bracket 210 is attached to the towing bracket adapter 250.
The towing bracket adapter 250 includes a bore 252 configured to receive a portion of the towing bracket 210. The bore 252 can be a forward-facing bore when installed on the vehicle 200. At least one tab 254 is disposed in the bore 252 to mechanically stop the towing bracket 210 from exiting the bore 252. At least one lug 256 extends from the towing bracket 210 and is configured to engage the tab 254.
The towing bracket adapter 250 includes the hollow bore portion 251 and a rod portion 253 extending aft from the hollow bore portion 251 and into the nut fastener 232. The rod portion 253 can include the external thread. In various embodiments, the rod portion 253 is smaller in diameter than the hollow bore portion 251.
Aspects of a thread-in adapter, for example as illustrated in
In various embodiments, the towing bracket 310 further includes a pin 361 that engages a notch 362 disposed in a rim 364 of the towing bracket adapter 350. The pin 361 can stop the towing bracket 310 from rotating relative to the towing bracket adapter 350 when the towing bracket 310 is installed to the towing bracket adapter 350. The pin 361 can be spring-biased such that the pin 361 extends into the notch 362 when the towing bracket 310 is rotated to the locked rotational position as illustrated in
Aspects of a welded in adapter, for example as illustrated in
With reference to
The towing bracket adapter 450 includes a hollow bore portion 451 and a rod portion 453 extending aft from the hollow bore portion 451. The rod portion 453 can be attached to the central portion 234 of the front side member plate 228. The rod portion 453 can extend from the outer surface 238 of the central portion 234 of the front side member plate 228. The rod portion 453 can be attached in the center of the central portion 234 of the front side member plate 228 or at any other location in the central portion 234 of the front side member plate 228. The rod portion 453 can be attached to the central portion 234 of the front side member plate 228 via a weld, a mechanical fastener, or any other suitable attachment method. In various embodiments, the rod portion 453 is attached to the central portion 234 of the front side member plate 228 via a weld.
The rod portion 453 can further be attached to the central portion 244 of the front bumper mounting plate 240. The rod portion 453 can extend from the outer surface 247 of the central portion 244 of the front bumper mounting plate 240. The rod portion 453 can be attached in or to the center of the central portion 244 of the front bumper mounting plate 240 or at any other location in the central portion 244 of the front bumper mounting plate 240. The rod portion 453 can be attached to the central portion 244 of the front bumper mounting plate 240 via a weld, a mechanical fastener, or any other suitable attachment method. In various embodiments, the rod portion 453 is attached to the central portion 244 of the front bumper mounting plate 240 via a weld. In various embodiments, the rod portion 453 is smaller in diameter than the hollow bore portion 451.
The towing bracket adapter 450 can extend beyond (i.e., in the forward direction) the front bumper beam 216 toward the front bumper cover 202 and/or the lower grille panel 206. In various embodiments, the towing bracket adapter 450 terminates just aft of the front bumper cover 202 and/or the lower grille panel 206 so that the towing bracket adapter 450 can be hidden (i.e., covered) behind the front bumper cover 202 and/or the lower grille panel 206, for example, when the vehicle is not being flat towed. The towing bracket adapter 450 aligns with the aperture 208 such that the towing bracket 210 can extend from the towing bracket adapter 450 through the aperture 208 when the towing bracket 210 is attached to the towing bracket adapter 450.
The towing bracket adapter 450 includes a bore 452 configured to receive a portion of the towing bracket 210. The bore 452 can be a forward-facing bore when installed on the vehicle 200. At least one tab 454 is disposed in the bore 452 to mechanically stop the towing bracket 210 from exiting the bore 452. At least one lug 256 extends from the towing bracket 210 and is configured to engage the tab 454.
With reference to
With combined reference to
With particular focus on
With particular focus on
The attachment points 578 can be laterally offset from the longitudinal beams 574. For example, the attachment points 578 can be laterally inward from the longitudinal beams 574. In this manner, the flat tow base plate 570 can act as an adapter configured to adjust a point of attachment for a tow bar 1 (e.g., from the wider attachment points of the nut fasteners 232 and longitudinal beams 574 to the narrower attachment points of the attachment points 578).
In various embodiments, the lateral beam 572 is a metal beam, such as a metal, rectangular, hollow beam. In various embodiments, the longitudinal beams 574 are metal tubes, such as metal, round, hollow tubes.
Aspects of a flat tow base plate kit, for example as illustrated in
Exemplary embodiments of the invention have been disclosed in an illustrative style. Accordingly, the terminology employed throughout should be read in a non-limiting manner. Although minor modifications to the teachings herein will occur to those well versed in the art, it shall be understood that what is intended to be circumscribed within the scope of the patent warranted hereon are all such embodiments that reasonably fall within the scope of the advancement to the art hereby contributed, and that that scope shall not be restricted, except in light of the appended claims and their equivalents.