The present invention relates to side wings used with motor vehicles and is more particularly concerned with a positioning device therefore.
It is well known in the art to use side wings, side blades, snow wings or the like aside a motor vehicle such as a snowplow or the like to increase the effective width spanning of the vehicle when used to push snow or other material covering a road surface or the like on the side thereof. Side wings are usually retracted and raised alongside of the vehicle when not in use and positioned at a predetermined angle relative thereto, on the road surface, when in use. Depending on the specific needs, the predetermined angle could be chosen to have the side wing extending laterally from the vehicle over a distance that is usually close to encompass the adjacent lane.
Several side wing mounting systems exist, a few examples of which are as follows:
The front mounting structure of the side wing conventionally allows the front end of the side wing to be raised and lowered and to pivot between the extended and retracted side wing positions. The rear mounting structure of the side wing typically includes a pair of parallel arms extending between the vehicle and the side wing. Both arms, having a predetermined length, have their proximal end pivotally connected to the vehicle and their distal end pivotally connected to the side wing. An actuator extends between the proximal and distal ends of the arms at an angle therewith. The actuator is used to raise the side wing into the retracted position and lower it into the extended position.
Other rear mounting structures have the distal ends of the two arms, not necessarily parallel to each other, connected to the side wing via a second actuator typically mounted within a telescopic arm to vary the length thereof and operatively independent from the first actuator. Accordingly, the operator can select the position of the side wing relative to the vehicle depending on the desired lateral spanning of the side wing in the extended position.
All these rear mounting structures require a large amount of parts with rigid arms and at least one actuator. When an adjustable positioning of the side wing is desired, a relatively complex telescopic arm combined with a second actuator that can undergo the stress loads are added thus rendering the structure even more complex and susceptible to damages and frequent repairs.
Accordingly, there is a need for an improved side wing adjustable mounting device with a simple configuration.
It is therefore a general object of the present invention to provide a device for selectively positioning a side wing mounted on a vehicle side relative thereto and to a ground surface.
An advantage of the present invention is that the side wing positioning device allows for easy adjustment of the position of the side wing relative to the motor vehicle into the operative configuration.
Another advantage of the present invention is that the side wing positioning device is relatively simple in configuration and does generally not require the use of any additional rigid support arms, other than the actuators.
A further advantage of the present invention is that the side wing positioning device is and easy and quick to operate.
Still another advantage of the present invention is that the side wing positioning device allows for a wide angular adjustment of the position thereof relative to the motor vehicle.
Another advantage of the present invention is that the side wing positioning device enables the side wing to be rapidly lifted up from its extended configuration.
Still a further advantage of the present invention is that the side wing positioning device allows for a relatively low retracted and stowed position of the side wing along the side of the vehicle to significantly reduce the visual obstruction the stowed side wing causes to the vehicle driver.
Yet another advantage of the present invention is that the side wing positioning device is connected to the vehicle via a simple hinge structure that uses a minimum quantity of parts that are furthermore less susceptible to wear and failure than existing joint systems.
A further advantage of the present invention is that the side wing positioning device uses two double-acting actuators angularly positioned relative to each other and operatively connected in parallel.
Yet another advantage of the present invention is that the side wing positioning device is connected to the vehicle via a simple hinge structure.
According to an aspect of the present invention, there is provided a device for positioning a side wing mounted on a vehicle side relative thereto and to a ground surface, said device comprises: first and second elongate rams being angularly positioned relative to one another and defining an actuator plane; first and second longitudinal end members being pivotally connectable to a respective one of the vehicle side and the side wing about axes substantially parallel to said actuator plane, each of said first and second rams connecting to said first and second end members; said first and second rams operating in parallel relative to each other for operation between first and second positions such that the side wing is adjacent the vehicle side and away from the ground surface when said first and second rams are in said first position, and the side wing is away from the vehicle side and operatively engages the ground surface when said first and second rams are in said second position.
In one embodiment, the first and second rams pivotally connect to said first and second end members about axes substantially transversal to said actuator plane, and the latter is substantially vertically oriented.
In one embodiment, the first and second rams are double-acting hydraulic rams.
Typically, the device further includes a hydraulic valve hydraulically connecting to said first and second rams, said hydraulic valve being connectable to a source of pressurized hydraulic fluid to simultaneously control actuation of said first and second rams.
In one embodiment, the first and second rams are spaced apart from one another by first and second distances adjacent said first and second end members, said first distance being larger than said second distance.
Conveniently, the second distance is substantially null so that said first and second rams and said first end member substantially form a triangle.
Typically, the first ram includes a longitudinal extension thereof extending toward said second end member.
Typically, the second ram pivotally connects to said longitudinal extension of first ram adjacent said second end member.
In one embodiment, the first and second rams are actuatable into a third position intermediate said first and second positions such that the side wing is adjacent the vehicle side and operatively engages the ground surface when said first and second rams are in said third position.
Typically, the first and second rams are actuatable between retracted and extended configurations, both said first and second rams being substantially in said retracted and extended configurations when in said first and second positions.
Typically, the first ram is substantially horizontally oriented at said second and third positions and therebetween.
Typically, the first and second rams are actuatable between retracted and extended configurations, said first ram being substantially in said retracted configuration when in said first and third positions and therebetween.
Conveniently, the first and second rams moves from said first position to said third position under the action of the gravity acting on the side wing.
In one embodiment, the first and second rams are actuatable into a fourth position beyond said second position such that the side wing is away from the vehicle side and the ground surface when said first and second rams are in said fourth position.
Typically, the first and second rams are actuatable between retracted and extended configurations, both said first and second rams being substantially in said retracted and extended configurations when in said first and fourth positions. Conveniently, the second ram is substantially in said extended configuration when in said second and fourth positions and therebetween.
Typically, the first and second rams moves from said fourth position to said second position under the action of the gravity acting on the side wing.
In one embodiment, the first end member is a hinge connector. Typically, the hinge connector includes first and second hinge parts pivotally connecting to each other, said first and second rams pivotally connecting to said first hinge part, said second hinge part being mountable on the vehicle side.
Preferably, the hinge connector has a substantially vertically oriented hinge axis.
In one embodiment, the second ram has a collar pivotally connectable to the side wing about a collar axis.
Typically, the collar is further slidably connectable to the side wing along said collar axis that is preferably substantially vertically oriented.
In another aspect of the present invention, there is provided a motor vehicle for plowing material located onto an adjacent ground surface away from a vehicle side thereof, said vehicle comprises: a side wing having generally opposed first and second wing longitudinal ends, said first wing end being movably connected to the vehicle adjacent a front end thereof; a device for selectively positioning the side wing relative to the vehicle side and the road surface, said device including: first and second elongate rams being angularly positioned relative to one another and defining an actuator plane; first and second longitudinal end members pivotally connecting to a respective one of the vehicle side away from the front end and the side wing adjacent the second wing end about axes substantially parallel to said actuator plane, each of said first and second rams connecting to said first and second end members; said first and second rams operating in parallel relative to each other for operation between first and second positions such that the side wing is adjacent the vehicle side and away from the ground surface when said first and second rams are in said first position, and the side wing is away from the vehicle side and operatively engages the ground surface when said first and second rams are in said second position.
Other objects and advantages of the present invention will become apparent from a careful reading of the detailed description provided herein, with appropriate reference to the accompanying drawings.
Further aspects and advantages of the present invention will become better understood with reference to the description in association with the following Figures, wherein:
a is a view similar to
Similar references used in different Figures denote similar components.
With reference to the annexed drawings the preferred embodiments of the present invention will be herein described for indicative purpose and by no means as of limitation.
Referring to
The device 10 includes first 20 and second 22 longitudinal end members. Typically, the first end member 20 is pivotally connectable to the vehicle side 12 and the second end member 22 is pivotally connectable to the side wing 16.
The device 10 further includes first 24 and second 26 elongate rams that are angularly positioned relative to one another. Each ram 24, 26 is pivotally connected to the first and second end members 20, 22. The first and second rams 24, 26 are spaced apart from one another by first 28 and second 30 distances adjacent the first and second end members 20, 22. Typically, the first distance 28 is larger than the second distance 30 which is relatively substantially null or zero such that the first and second rams 24, 26 and the first end member 20 substantially form a triangle, as shown in
The first and second rams 24, 26, preferably double-acting hydraulic rams, are operatively connected in parallel relative to each other in the hydraulic circuit 32 such that only one operator controlled hydraulic valve 34 is required for the actuation of the two rams 24, 26, as shown in
Typically, the first and second rams 24, 26 define an actuator plane 36 that is substantially vertically oriented. Each ram 24, 26 has a piston rod 38 slidably connecting to a cylinder housing 40. The piston rods 38 and the cylinder housings 40 are typically pivotally connected to the first and second end members 20, 22 respectively, about axes 42 substantially transversal to the actuator plane 36.
As shown more specifically in
The second end member 22 typically includes a collar 48 that pivotally connects to a mounting rod 50 of the side wing 16 about a collar axis 52 that is typically substantially vertically oriented. The mounting rod 50 is typically located adjacent a second longitudinal end or distal end 56 of the side wing 16, the first longitudinal end or proximal end 58 of the side wing 16 being generally pivotally connected to the vehicle 14 adjacent the front end thereof. Preferably, the collar 48 is slidably mounted on the mounting rod 50 along the collar axis 52 to allow for small vertical up and down displacements of the side wing 16 according to the leveling or local imperfections of the road surface 18.
As shown more specifically in
Typically, the cylinder housing 40 of the first ram 24 includes a longitudinal extension 60 thereof that pivotally connects to the collar 48. Similarly, the cylinder housing 40 of the second ram 26 includes a longitudinal extension 62 thereof that pivotally connects to the longitudinal extension 60 of the first ram 24, preferably at about half length of the longitudinal extension 60.
As seen throughout the Figures, the two rams 24, 26 are typically actuatable between retracted and extended configurations.
Referring more specifically to
As shown in
As shown in
Operation
When the side wing 16 is in the first raised retracted position along the vehicle side 12, the first ram 24 is in the retracted configuration and the second ram 26 is substantially in the retracted configuration, as shown in
When the operator (not shown) needs to use the side wing 16, the hydraulic valve 34 is actuated in the extension position to start the extension of the side wing 16 away from the vehicle side 12. Under the gravitational weight of the side wing 16, the pressurized fluid will start flowing into the second ram 26 until the side wing 16 is substantially on the ground surface 18 in the third operating retracted position, as indicated by the arrows A in
One skilled in the art would easily understand that the generally vertically oriented triangle formed by the device 10, the side wing 16 and the vehicle side 12 in the first position against the vehicle side 12 as seen in
After reaching the third position, if the operator maintains or re-activates the hydraulic valve 34 in the extension position, both first and second rams 24, 26 are simultaneously actuated toward their extended configuration until the second rams 26 reaches its extended configuration with the device 10 in the second operating extended position, as indicated by the arrows B in
After reaching the second position, if the operator maintains or re-activates the hydraulic valve 34 in the extension position, the first ram 24 is further actuated toward its extended configuration while the second ram 26 remains in its extended configuration, until both rams 26 are in their extended configuration with the device 10 in the fourth raised extended position, as indicated by the arrows C in
For the reverse actuation of the first and second rams 24, 26, the operator actuates the hydraulic valve 34 in the retraction position to start the retraction of the side wing 16 toward the vehicle side 12. When the device 10 beyond the second position, in the fourth position or there between, the pressurized fluid will start flowing into the first ram 24 until the side wing 16 is substantially on the ground surface 18 in the second operating extended position under the gravitational weight of the side wing 16, as in an opposite direction of arrows C in
After reaching the second position, if the operator maintains or re-activates the hydraulic valve 34 in the retraction position, both rams 24, 26 are simultaneously retracted toward their retracted configuration between the second and third positions, as in an opposite direction of arrows B in
After reaching the third position, if the operator maintains or re-activates the hydraulic valve 34 in the retraction position, the second ram 26 is further actuated toward its retracted configuration while the first ram 24 remains in its retracted configuration, until the device 10 reaches the first raised retracted position, as in an opposite direction of arrows A in
At any time, the operator may reverse the operation of the hydraulic valve 34 or stop the actuation of the two rams 24, 26 to maintain the side wing 16 in the selected position.
Alternatives
Although the embodiment 10 described hereinabove is shown With four positions, only the first and second positions could be considered depending on the proper configuration and sizes of the two rams 24, 26.
One skilled in the art would understand that other types of actuators, such as electric actuators with worm screws or the like (not shown) with corresponding switch controlled valves (not shown) and more complex control circuitry (not shown), could be used without departing from the scope of the present invention.
Although less practical and less effective, other orientations and/or connections of the first and second rams 24, 26 with the first and second end members 20, 22 could be considered without departing from the scope of the present invention; such as with, but not limited to, the shown device 10 turned up-side-down and flipped 180 degrees left-to-right (not shown); with the first and second end members 20, 22 connected to the side wing 16 and to the vehicle side 12 and with the first ram 24 located above the second ram 26 at an angle relative thereto.
While specific embodiments have been described, those skilled in the art will recognize many alterations that could be made within the spirit of the invention, which is defined solely according to the following claims.
Number | Name | Date | Kind |
---|---|---|---|
2643470 | Kaeser | Jun 1953 | A |
2991566 | Sumner et al. | Jul 1961 | A |
3659363 | Snyder | May 1972 | A |
4045892 | Farrell | Sep 1977 | A |
4096652 | Raines et al. | Jun 1978 | A |
4357766 | Croteau et al. | Nov 1982 | A |
4596081 | DeBilly et al. | Jun 1986 | A |
4969280 | Thorneloe | Nov 1990 | A |
5031343 | Houle et al. | Jul 1991 | A |
5048207 | Verseef | Sep 1991 | A |
5177887 | McGugan et al. | Jan 1993 | A |
6249992 | Irving et al. | Jun 2001 | B1 |
6412200 | Savard | Jul 2002 | B1 |
6581307 | Jones et al. | Jun 2003 | B1 |
Number | Date | Country | |
---|---|---|---|
20050252045 A1 | Nov 2005 | US |