Patent Publication Number: US-2022219894-A1

Title: Refuse collection vehicle having bolt-on fenders

Description:
BACKGROUND 
     Heavy duty mechanical equipment used throughout the world typically includes a unique combination of work pieces, related power supplies and robust components specifically configured to withstand harsh operating environments. In many situations, this equipment includes specially designed mechanical components (i.e. levers, working surfaces, housings, shields, brackets, etc.) and related power actuators (e.g. hydraulic cylinders). In practice, the mechanical systems are all uniquely designed to carry out the desired motions/functions, meet the specific needs of the device, or provide appropriate protection. 
     As mentioned above, these heavy-duty systems often operate in harsh conditions. Some examples include earth-moving equipment, machines used in mining, garbage collection/hauling trucks, manufacturing systems, etc. Consequently, any efforts to provide additional durability and prolong the life of components is very beneficial. 
     One specific application where mechanical systems are used in such harsh conditions is the refuse truck. These trucks operate year-round in all types of conditions—extreme heat, extreme cold, rain, snow, etc. They also must travel all types of roads. When operating, it is important for refuse trucks (and virtually all trucks) to have fenders and related guards which prevent rocks and stones from being thrown. These fenders protect others on the roads, and portions of the vehicle itself. Fenders can take many forms, but generally surround and protect various areas around the truck wheels themselves. Typically, the fenders are positioned above the wheels and may extend part way down the front, back or sides. In some cases however, the configuration of the fender can create an unexpected concern. More specifically, rocks and debris can occasionally accumulate on a flat upper surface of the fender. If not removed, this debris can then be dropped or expelled from the truck while in motion. As would be recognized, this could potentially cause damage to other vehicles, and or other individuals. 
     In addition to the issues outlined above, damage to fenders is quite common. Again, fenders are specifically designed to contain spray and debris that may be propelled from the wheels. This could include significant rocks and other items that are capable of denting the fenders themselves. More specifically, a rock thrown from a tire into the underside of the fender will typically create a dent. Although the dent will not often prevent use of the truck, it will create paint peeling and unsightly damage which is undesirable. With standard metal fenders, repairing these dents and chipped paint is an involved and cumbersome task. 
     In light of these concerns and the harsh operating conditions encountered, it is desirable to have components of the refuse truck which can be durable and easily repaired. Further, it is beneficial to provide various operators with several options to best meet their particular needs. 
     SUMMARY 
     To provide a refuse truck with improved durability, flexibility and efficiency, an improved fender design for a refuse truck as described below. Further, several details are modified to improve the manufacturability, durability and flexibility. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Further advantages of the systems, devices and embodiments for improved operations of a refuse truck will be better understood from reading the description set forth below in conjunction with the drawings, in which: 
         FIG. 1  is a perspective view of an exemplary refuse truck; 
         FIG. 2  shows certain details of the refuse collection systems of the exemplary refuse truck shown in  FIG. 1 ; 
         FIGS. 3A and 3B  show front views of two alternative embodiments of the bolt-on fenders; 
         FIG. 4  is a cross-sectional exploded view of the bolt-on fender and a mounting bracket; and 
         FIG. 5  is a side view of another alternative embodiment of the bolt-on fenders. 
     
    
    
     DESCRIPTION 
     Existing refuse collection trucks generally come in one of many different configurations, including a front loader version, side loader version, and rear loader version. As the names suggest, variations in operation and layout drive the way these refuse vehicles operate. Turning now to  FIG. 1 , one example of a rear loader refuse truck is illustrated. In this embodiment, rear loader refuse truck  10  is shown having a truck frame  12  supported by a pair of front wheels  14 , and a set of rear wheels  16 . Frame  12  also supports a cab  18  designed to contain several operator controls. As will also be recognized, a motor or engine (not shown) is housed under a front hood  22  and is configured to supply necessary power. Further components which will be clearly understood but are not specifically illustrated include a transmission, hydraulic pumps, an electrical power supply, hydraulic power structures (tubes, valves, etc.), and other operating components. Those skilled in the art will recognize the need and general operation of these components. 
     Also illustrated in  FIG. 1 , frame  12  supports and carries a collection mechanism  30  and a main collection body  40  which is designed to define or create a main collection compartment  42 . As is appreciated, collection mechanism  30  will include a bin, hopper or collection area  34  which is designed and configured to easily allow operators to deposit refuse therein. In operation, a sweep and scoop mechanism is used to pull refuse from the collection hopper  34  into main collection compartment  42 . In addition, compaction equipment is included so refuse is compacted as collection operations occur, thereby more efficiently utilizing the space and main collection compartment  42 . Further, it is typical for collection mechanism  30  to be hingeably mounted to main collection body  40  at an upper hinge point  32 . Based upon this connection methodology, the collection mechanism  30  can be swung upward and out of the way, thus allowing main collection compartment  40  to be easily emptied when full. 
     As suggested above, collection mechanism  30  includes several components which are specifically designed and configured to accommodate the collection of refuse. As one example,  FIG. 2  presents a perspective view of the collection mechanism  30  alone, which again is connected to main collection body  40  at hinge point  32  by a hinge connection  33 . In  FIG. 2 , collection mechanism  30  is pulled away from main collection body  40  slightly, thus exposing a portion of main collection compartment  42 . Here, collection mechanism  42  is held in place by a lockout bar  37 . It is contemplated that the hinge connection  33  is achieved by appropriate hinge pins to accommodate the hinging of collection mechanism  30  as an entire unit. 
     Turning again to  FIG. 2 , refuse collection vehicle  10  includes a main collection chamber or compartment  40 , which forms a large portion of refuse collection truck  10 . As will be appreciated, fenders utilized along the side of main collection compartment  40  can provide protection and avoid eliminates or covers any flat/horizontal surfaces. Unfortunately, these fenders are easily worn or deteriorated, which is clearly undesirable. These fenders are clearly visible from the outside while collection vehicle  10  travels throughout the streets and creates a negative impression if these fenders are worn or unsightly. 
     To provide various alternatives and ease of maintenance, bolt-on fenders are specifically configured to be utilized in the various embodiments disclosed herein. In the embodiment illustrated in  FIG. 2 , main collection body  40  is configured to have a plurality of bracket assemblies  400  located on a lower portion thereof. In this embodiment, the plurality of bracket assemblies includes a first bracket  411 , second bracket  412 , third bracket  413 , fourth bracket  414 , fifth bracket  415  and sixth bracket  416 . Bolt-on fender assembly  400  further also includes a first fender panel  422  and a second fender panel  424 . In this configuration, the fender assembly  400  and specifically first panel  422  and second panel  424  can be easily removed and replaced at any time during the life of the refuse collection vehicle. Clearly,  FIG. 2  shows only a first side of main collection body  40  and it will be understood that similar structure will exist on an opposite side. It is further contemplated that first fender panel  422  and second fender panel  424  could be formed of many different materials including composites, steel, metal, stainless steel, etc. In this manner, the life of the vehicle and the appearance can be easily adjusted, modified, and improved at any time. 
     Turning now to  FIGS. 3A and 3B , a front view is presented of alternative embodiments for first fender panel  422 ,  442  and second fender panel  424 ,  444 . More specifically,  FIG. 3A  shows first fender panel  422  and second fender panel  424 , which are both sheet material that has been formed to fit the desire needs. An overlapping lip  426  is formed on second fender panel  424 , so the two panels can be overlapped when attached to a refuse truck. In this embodiment, an access opening  428  is located on a lower portion of first panel  422  which will allow an installer to access other components such as wiring for lights or final assembly points. It is contemplated that this opening  428  is covered after final assembly by a plug or cover plate. In a similar manner,  FIG. 3B  shows another embodiment, with first fender panel  442  and second fender panel  444  being configured to meet the needs of refuse vehicle  10 , while also adding additional features. More specifically, a plurality of warning lights  450  are included as part of first fender panel  442  and second fender panel  444 . This embodiment illustrates that other features can be incorporated into the fender panels as needed. 
     In a similar manner,  FIG. 4  shows a cross-sectional exploded view of removable second fender panel  424 , along with a side view of fifth bracket  415 . As illustrated, fifth bracket  415  is configured to have a sloped supporting surface  452 , and an adjacent vertical supporting surface  454 . It will be understood that each of these supporting surfaces ( 452 ,  454 ) will have attachment holes to accommodate connection of the related removable panel  424 . Further, fender panel  424  has a related sloped surface  462  and a related vertical surface  464 . The sloped surfaces help to avoid build-up of material, dirt and related residue on the side of main collection body  40 . The angle of the sloped surface  462  can vary depending on the situation and desires of the collection operator. That said, it is desirable to have sufficient slope so that water and related liquids will easily be deflected away from the sidewall of main collection body  40 . In one embodiment, the angle of the sloped surface with respect or horizontal is between 20° and 70°. Removable panel  424  also has a bottom surface  466  which is configured to surround a bottom side of bracket  415  and to provide additional attachment features. 
     Turning now to  FIG. 5 , an embodiment of a single piece removable fender panel  500  is shown. As will be recognized, single piece removable fender panel  500  is formed from a continuous sheet of panel material, thus avoiding the need for an overlapping center seam. In this embodiment, single piece removable fender panel  500  has the same general cross-sectional configuration as the previous fender panel members (and as illustrated in  FIG. 4  above), including a sloped surface  502 , a generally vertical surface  504  and a bottom surface  506 . Single piece fender panel  500  also includes an access opening  508  configured to allow access to wiring or other components/systems located at those portions of collection body  40 . Although bottom surface  506  is not visible in  FIG. 5 , this portion of single piece fender panel  500  will be configured similar to bottom surface  466  shown in  FIG. 4 . Based upon this configuration, single piece fender panel  500  will be attachable to multiple fender brackets (e.g. first bracket  411 , second bracket  412 , third bracket  413 , fourth bracket  414 , fifth bracket  415  and sixth bracket  416 ) in a manner similar to the previously discussed fender brackets. 
     In each of the embodiments discussed above, removable fender panels  422 ,  424 ,  442  and  444  are removably coupled to main collection body  40  in any number of ways, including bolting, snapping or screwing. Other alternative connection methods could be used, so long as these are removable. 
     It will be recognized that the use of removable fender panels will also provide further flexibility in the manufacturing of the refuse collection body. More specifically, these could provide space on the outside of main refuse collection  40  to run wiring and/or hydraulic lines. Since the related fender panels are removable, these components could be easily serviced by simply removing the related panel. Naturally, these spaces could be used for other purposes, as they provide an enclosed space running the length of main collection body  40 . 
     To provide options for an operator of refuse truck fleets, the removable panels discussed above ( 422 ,  424 ,  442 ,  444 ,  500 ) can be fabricated from a variety of materials, such as steel, stainless steel, aluminum, and any number of non-metallic materials such as carbon fiber materials, polyethylene, polymers, elastomers, vinyls, textiles, organic and non-organic compounds, and various composites. Clearly, a material that is rugged and durable will be greatly desired so as to withstand the harsh conditions encountered. The removable panels can further be created by several processes, including molding, stamping, extruding, and other forming techniques. 
     Various embodiments of the invention have been described above for purposes of illustrating the details thereof and to enable one of ordinary skill in the art to make and use the invention. The details and features of the disclosed embodiment[s] are not intended to be limiting, as many variations and modifications will be readily apparent to those of skill in the art. Accordingly, the scope of the present disclosure is intended to be interpreted broadly and to include all variations and modifications coming within the scope and spirit of the appended claims and their legal equivalents.