1. Field of the Invention
The present invention relates generally to, among other things, utility vehicles such as, for example, skid steer vehicles having extendable utility booms and/or other mechanisms.
2. Discussion of the Background
There are a variety of known utility vehicles having extendable utility booms and/or other mechanisms. These utility vehicles are often used for construction and/or other utilitarian purposes, such as, e.g., for lifting, pushing, scraping, digging, plowing and/or various other purposes. In many instances, the vehicles include a) a main body having at least one seat for a vehicle operator (such as, for example, a seat located within a protective cab), b) wheels and/or other supports mounted on the body portion for supporting the same, and c) a utility mechanism mounted to the vehicle (such as, e.g., via a utility boom). In some illustrative cases, the utility mechanism(s) can include, e.g., one or more of the following: a) an auger; b) a backhoe; c) a dozer blade; e) a bucket; f) a fork (e.g., for pallets, manure or the like); g) a grinder; h) a rake; i) shears; j) a roller; k) spike (e.g., for bails of hay or the like); l) a jig boom; m) a broom; n) a scraper; o) a tree spade; p) a plow; q) a mower; r) a trencher; s) a four-in-one bucket; and/or various other utility mechanisms. In some instances, the vehicle is adapted such that various utility mechanisms can be replaced, interchanged, upgraded and/or the like. In this manner, a basic vehicle can be adapted or configured to perform specific tasks (such as, e.g., by attaching a new utility mechanism to the vehicle).
Because these vehicles are often used for work related purposes, ease-of-adaptability and/or configurability can be advantageous (such as, e.g., to enable full use of equipment, to save time, to enhance functionality and/or various other possible advantages). Nevertheless, existing devices have limitations making configuration of the device to match a user's needs and/or for other purposes more difficult.
There remains a need for, among other things, vehicles having improved configurability, such as, e.g., improved control configurability to achieve a desired purpose or result.
The preferred embodiments of the present invention can significantly improve upon existing systems and methods. In some preferred embodiments, a utility vehicle is provided that facilitates configurability of control mechanisms.
In some preferred embodiments of the invention, control structures for a vehicle can enable a multitude of control-to-function configurations. In the most preferred embodiments, a multitude of configurations can be established between a) a plurality of control elements and b) a plurality of vehicle functions that can be controlled via the control elements. In the most preferred embodiments, the plurality of control elements include at least four control elements. In the most preferred embodiments, the plurality of vehicle functions include at least four vehicle functions.
In some illustrative embodiments, a skid steer utility vehicle having an extendable boom is provided that includes: a vehicle body; an engine supported by the vehicle body; an extendable boom supported by the body; a utility mechanism supported by the boom; a plurality of controlled devices, each of the controlled devices affecting a respective vehicle function, and each of the controlled devices being driven by a similarly configured drive mechanism; a plurality of user operated control elements, each of the user operator control elements having a similarly configured control attachment mechanism; and each the control attachment mechanism being connectable with each the drive attachment mechanism to provide a multitude of control-to-function configurations. In some preferred embodiments, the control elements include a plurality of hand controls and a plurality of foot controls. In some preferred embodiments, the multitude of control-to-function configurations includes at least sixteen selectable configurations.
In some illustrative embodiments, a utility vehicle having at least one utility mechanism is provided that includes: a vehicle body; an engine supported by the vehicle body; at least one utility mechanism supported by the vehicle body; at least four controlled devices, each of the controlled devices affecting a respective vehicle function, and each of the controlled devices being driven by a similarly configured drive mechanism; at least four user operated control elements, each of the user operator control elements having a similarly configured control attachment mechanism; and each the control attachment mechanism being connectable with each the drive attachment mechanism to provide at least sixteen control-to-function configurations. In preferred embodiments, the control elements include a plurality of hand operated control arms and a plurality of foot operated control pedals. In some preferred embodiments, each the control attachment mechanism includes a control lever and each the drive attachment mechanism includes a cable.
In some illustrative embodiments, a method for selecting a control-to-function configuration for a utility vehicle having at least one utility mechanism is performed that includes: a) providing a utility vehicle having a vehicle body, an engine supported by the vehicle body, at least one utility mechanism supported by the vehicle body, at least four controlled devices, each of the controlled devices affecting a respective vehicle function, and each of the controlled devices being driven by a similarly configured drive mechanism, at least four user operated control elements, each of the user operator control elements having a similarly configured control attachment mechanism, and each the control attachment mechanism being connectable with each the drive attachment mechanism to provide at least sixteen control-to-function configurations; and b) connecting the control attachment mechanisms to the drive attachment mechanisms in accordance with a desired control-to-function configuration.
The above and/or other aspects, features and/or advantages of various embodiments will be further appreciated in view of the following description in conjunction with the accompanying figures. Various embodiments can include and/or exclude different aspects, features and/or advantages where applicable. In addition, various embodiments can combine one or more aspect or feature of other embodiments where applicable. The descriptions of aspects, features and/or advantages of particular embodiments should not be construed as limiting other embodiments or the claims.
The accompanying figures, in which similar reference numerals show similar elements, are provided by way of example, without limiting the broad scope of the invention or various other embodiments, wherein:
While the present invention may be embodied in many different forms, a number of illustrative embodiments are described herein with the understanding that the present disclosure is to be considered as providing examples of the principles of the invention and that such examples are not intended to limit the invention to preferred embodiments described herein and/or illustrated herein.
The preferred embodiments of the invention include novel control mechanisms implemented within a utility vehicle. In various embodiments, the novel control mechanisms can be implemented within any appropriate vehicle structure. For example, various control elements can be implemented within various utility vehicles, such as various utility vehicles having extendable booms, utility mechanisms and/or the like. The following section describes some non-limiting examples of illustrative vehicles in which some embodiments of the present invention can be implemented. It should be appreciated that these examples are provided by way of illustration only.
Illustrative Vehicle Structures:
The preferred embodiments of the invention can be implemented within a variety of vehicles, such as, for example, within vehicles having a raised and/or lowered utility booms, such as, e.g., various skid steer loaders. While preferred embodiments described herein show skid steer loaders, it should be appreciated that the various embodiments may be employed within any appropriate vehicle type. Additionally, while some preferred embodiments have a bucket utility accessory connected to the boom, it should be appreciated that the various embodiments may employ any other appropriate utility mechanism, such as, for example, any of utility mechanism discussed herein and/or otherwise known in the art.
As illustrated, the vehicle 100 preferably includes a main body 125. In the illustrated embodiment, the main body 125 is movably supported via a plurality of wheels 126. While the illustrated embodiments include four wheels, other embodiments can include any other number of wheels and/or can include other support mechanisms such as belts, stabilizers and/or the like. As mentioned above, while the wheels 126 can provide skid steering, other embodiments could include or use other forms of steering.
In some preferred embodiments, the vehicle 100 includes an operator cab 180 having at least one seat 180S, such as, e.g., shown in
In some preferred embodiments, to enhance maintenance and/or service ability, a rear-end access feature is provided. Preferably, the rear-end access feature enables substantially unobstructed access by a maintenance and/or service operator from a rear-end of the vehicle. In some preferred embodiments, the rear end of the vehicle is accessible during maintenance and/or service via a door 112 providing access through a rear end of the vehicle body. In some preferred embodiments, the door 112 can be pivoted open. Preferably, the door can be pivoted around a generally vertical pivot to facilitate access. In illustrative embodiments, access to engine and/or drive systems (such as, e.g., motor parts) can be provided through a rear door 112 having a hinge 114 at a right rear corner of the body 125, as shown in
In some preferred embodiments, the body 125 extends further rearward than the cab 180, such as, e.g., shown in
In some preferred embodiments, a boom 140 is provided that is preferably configured in a manner to enable substantially unobstructed left and/or right side access into the vehicle body. In preferred embodiments, a boom 140 is provided that can be located in lowered position (such as, e.g., shown in
In some illustrative and non-limiting embodiments, the boom includes respective boom assemblies 140L and 140R on left and right sides of the vehicle 100, respectively. Preferably, the boom assemblies include a front link L1 that is pivotally connected at a pivot P1 and a rear link L3 that is pivotally connected to the rear of the boom assembly 140 at rear boom pivot P3. The rear link L3 is preferably connected to vehicle 100 by a rear mount P0. As shown in
In some preferred embodiments, the boom can include links L1–L6 substantially as illustrated. In that regard, the link L1 is preferably pivotally attached to the body 125 at a pivot P1 and is pivotally attached to a bracket LB at a pivot P2. In some embodiments, the link L3 can be pivotally attached to the body 125, such as, e.g., at a pivot P0. In some embodiments, the link L3 can be fixedly attached to the body 125 so as to extend generally upright therefrom. In some embodiments, the link L4 can be pivotally attached to the link L3 at a location above the top of the body 125, such as, e.g., as shown. Preferably, the link L4 is an elongated member that extends from the link L3 to a top of the boom. In the illustrated embodiment, the link L4 is generally L-shaped and includes a cylinder 360 connected between a pivot P5 on the link L4 and a pivot P7 on the link L6. In some embodiments, a utility mechanism, such as, e.g., a bucket 130, as shown, can be connected to the link L6 and pivotally attached to the link L4 via a pivot P6. Preferably, the link L4 includes a top angle bracket AB and/or a bottom support bracket SB to facilitate pivotal mounting and for enhanced strength and durability. In some embodiments, the links L2 and/or L5 can be pivotally connected to the link L4 (such as, e.g., via brackets AB and/or SB) and/or pivotally connected to the bracket LB. In some embodiments, the links L2 and/or L5 can be fixedly connected to the link L4 (such as, e.g., via brackets AB and/or SB) and/or fixedly connected to the bracket LB. In some embodiments, the links L2 and/or L5 can be unitarily formed with the link L4.
In some embodiments, the boom can be raised and/or lowered via at least one cylinder 280. In some preferred embodiments, the cylinder 280 is an hydraulically powered cylinder with an extendable cylinder rod 280R. A base end of the cylinder is preferably pivotally attached to the body 125, while a distal end of the cylinder rod is preferably pivotally attached to the link L4.
In some illustrative embodiments, the cylinder 280 is hydraulically operated and is connected to the boom 140 at pivot P4. As shown in
In some preferred embodiments, the boom is configured so that in a raised position (such as, e.g., shown in
Preferred Control Structures:
In some preferred embodiments of the invention, control structures for a vehicle can include at least some of the features depicted in
Among other things, the preferred embodiments of the invention provide a vehicle control arrangement having high adaptability and/or configurability so as to enable the vehicle to be adapted and/or configured based on circumstances. In some examples, a vehicle manufacturer can readily create vehicles having various configurations based on circumstances. In some examples, a manufacturer can create vehicles having particular configurations based on the needs of one or more particular end user(s). In some examples, a vehicle can be reconfigured by an end user so as to accommodate the end user's needs, such as, for example, to reconfigure the control configuration as desired. For example, in some embodiments, an end user can have the vehicle reconfigured to accommodate new utility mechanisms, such as, e.g., new utility mechanisms supported on an extendable boom. For example, various utility mechanisms can have different control mechanisms and/or control needs. In this manner, the vehicle could be readily adapted to provide control configurations as needed or as desired based on circumstances. Additionally, in some preferred embodiments, the system can be relatively quickly reconfigured without substantial difficulties by an operator.
In some preferred embodiments, the control elements (e.g., C1, C2, C3, C4) can include a plurality (such as, e.g., two in some preferred embodiments) of hand-operated controls and/or a plurality (such as, e.g., two in some preferred embodiments) of foot-operated controls. In some embodiments, the hand-operated controls include two control arms and the foot-operated controls include two control pedals. Preferably, each of the control elements includes similar attachment mechanisms that can be reattached to different function drive elements (such as, e.g., cables or the like) as needed. For example, in the most preferred embodiments described herein, the control arms and the control pedals include similar lever arms with similar cable attachment mechanism geometries.
In some preferred embodiments, the configurable control elements include a plurality of hand-operated controls which move in a direction parallel to an operator's shoulders when seated on the vehicle (e.g., move in a side-to-side direction across the vehicle) and/or a plurality of foot-operated controls which move in a direction substantially perpendicular to an operator's shoulders when seated on the vehicle (e.g., move in a fore-to-aft direction of the vehicle).
With reference to
In some embodiments, where control pedals are included, structure like that shown in
As shown, the control pedals C3 and C4 are preferably pivotally supported upon the platform 400. For example, two lateral support flanges 412 can be fixed to the platform 400 and a pivot shaft 413 can extend through the flanges 412 and through depending side-walls of the respective pedals C3 and C4 so as to pivotally support the pedals. Preferably, the pedals C3 and C4 are biased to a particular position, such as, e.g., via a spring, another resilient member or the like. As shown in
Where control arms are included, in some embodiments, structure like that shown in
In some embodiments, the shaft(s) 450 can be fixedly attached to the vehicle body so as to remain fixed in relation to the vehicle body. In such embodiments, substantially the only motion of the control arms C1 and C2 would preferably be resultant from movement of the control arms about the axis 435A. In some other embodiments, at least one of the control shaft(s) 450 can be rotatably supported on said vehicle body so as to rotate about an axis 450A. For example, a support shaft (not shown) can pass through the center of the shaft(s) 450 and be fixedly attached to left and right lateral sides of the vehicle body, while rotatably supporting the shaft(s) 450 thereon so as to rotate about the axis 450A. In the latter case, there are preferably two shafts 450 which each have an end 450E that is adjacent an end 450E of the other shaft 450. In this manner, the two shafts 450 can preferably rotate independently about the axis 450A. As shown, each shaft 450 can also include lever arms 454 extending therefrom which can be used to control various vehicle functions as desired.
As illustrated in the embodiments shown in
As shown, in some illustrative embodiments, the drive elements can include drive cables f1–f4. In some illustrative embodiments, the drive cables f1–f4 can include internal metal or the like cables or wires w1–w4. In some embodiments, the cables or wires w1–w4 can be guided within guide conduits or shrouds g1–g4. In some embodiments, the wires w1–w4 can be detachably connected to the respective lever arms 415 and/or 435L via connectors c1–c4. In illustrative embodiments, the connectors c1–c4 can include clips, clamps, locks, nuts, brackets, bolts and/or any other appropriate connector. In some embodiments, as shown, the connectors include generally U-shape brackets that are attached to a respective wire w1–w4 at a base thereof and with a pin that extends between legs of the U-shape bracket and through a through-hole in the respective lever for attachment thereto. In some preferred embodiments, guide conduits or shrouds g1–g4 can be supported via the attachment flanges 416 or 452, respectively (such as, e.g., being clamped thereto or otherwise supported and/or fixed thereto).
In some preferred embodiments, the connections between the function drive elements and the control elements are located proximate one another such that drive elements can readily be repositioned with respect to the control elements. For example, in the illustrated embodiments, cable-type function drive elements can be readily repositioned at other locations without providing additional cable or otherwise adapting the device in preferred embodiments. Additionally, in preferred embodiments, the connections between the function drive elements and the control elements are readily made accessible for reconfiguration when desired. In this regard, for example, in some embodiments, the cab can be tilted forward, a boom structure can be raised, a top cover can be removed and/or a rear door can be opened (such as, e.g., as shown
In some examples, an operator's seat can be fixedly attached to the cab structure so as to pivotally move therewith (such as, e.g., as shown in
In the illustrative embodiments shown in
It should be appreciated that various other embodiments of the invention can involve one or more of the above functions and/or various other functions as would be known in the art and/or as would depend on the circumstances at hand. Among other things, by having various vehicle functions driven by similarly configured drive mechanisms (e.g., similar cable structure) and by similarly configured control elements (e.g., similar lever arm structure), the preferred embodiments can have a multitude of control-to-function configurations. In various embodiments, the “functions” that can be controlled via the control elements are preferably performed by powered devices, such as, e.g., devices powered by motors, by drives (such as, e.g., a hydraulic or other drives), by electrical sources, by manual power and/or by other power sources. Preferably, the control elements can be used to control the operation of or the use of such powered devices, such as via, e.g., a variable control, an ON/OFF control and/or another form of control. In some embodiments, the control elements can be used to control the position of devices, the rate of operation of devices, the extent of operation of devices and/or other required control(s) depending on circumstances.
Broad Scope of the Invention:
While illustrative embodiments of the invention have been described herein, the present invention is not limited to the various preferred embodiments described herein, but includes any and all embodiments having modifications, omissions, combinations (e.g., of aspects across various embodiments), adaptations and/or alterations as would be appreciated by those in the art based on the present disclosure. The limitations in the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. For example, in the present disclosure, the term “preferably” is non-exclusive and means “preferably, but not limited to.” Means-plus-function or step-plus-function limitations will only be employed where for a specific claim limitation all of the following conditions are present in that limitation: a) “means for” or “step for” is expressly recited; b) a corresponding function is expressly recited; and c) structure, material or acts that support that structure are not recited.
The present application claims priority to Provisional Patent Application Ser. No. 60/364,022, filed on Mar. 15, 2002, the entire disclosure of which is incorporated herein by reference.
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Number | Date | Country | |
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20030173135 A1 | Sep 2003 | US |
Number | Date | Country | |
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60364022 | Mar 2002 | US |