US20060034661A1 - Movable operator station for vehicles - Google Patents
Movable operator station for vehicles Download PDFInfo
- Publication number
- US20060034661A1 US20060034661A1 US10/918,001 US91800104A US2006034661A1 US 20060034661 A1 US20060034661 A1 US 20060034661A1 US 91800104 A US91800104 A US 91800104A US 2006034661 A1 US2006034661 A1 US 2006034661A1
- Authority
- US
- United States
- Prior art keywords
- frame
- cab
- base plate
- operator
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010276 construction Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 description 8
- 239000010426 asphalt Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/26—Rollers therefor; Such rollers usable also for compacting soil self-propelled or fitted to road vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
- B62D33/0633—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other pivotable about a vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
- B62D33/0636—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other displaceable along a linear path
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
- E01C2301/30—Cabin details
Definitions
- the present invention relates to compactor vehicles, and more specifically to operator stations for compactor vehicles.
- Construction vehicles such as compactors typically include an operator station or seat mounted on a main frame of the vehicle. With compactors, an operator is located on the seat or within a cab and directs operation of the vehicle by viewing the edges of the one or more compacting drums of the vehicle. It is thus critical for the operator, to have an unobstructed view of the drum edges in order to guide the vehicle to travel upon a work surface, such as a mat of asphalt.
- the present invention is an operator station for a compacting vehicle having a frame and at least one compacting drum rotatably connected with the frame.
- the operator station comprises a base plate rotatably connected with the frame and an operator cab slidably connected with the base plate.
- the cab includes a housing bounding an interior chamber and an operator seat disposed within the housing chamber and configured to support a vehicle operator. Further, an actuator is configured to linearly displace the housing with respect to the base plate.
- the present invention is also an operator station for a construction vehicle having a frame.
- the operator station comprises an operator cab movably connected with the vehicle frame so as to be linearly displaceable with respect to the frame along a generally horizontal axis and rotatably displaceable with respect to the frame about a generally vertical axis.
- a first actuator is configured to linearly displace the cab along the horizontal axis.
- a second actuator is configured to rotatably displace the base plate about the vertical axis.
- the present invention is again an operator station for a compacting vehicle having a frame and at least one compacting drum rotatably connected with the frame, the frame having a generally horizontal upper surface.
- the operator station comprises a base plate disposed on the frame upper surface and movably connected with the frame so as to be rotatably displaceable about a generally vertical axis extending generally perpendicularly with respect to the frame upper surface.
- An operator cab is slidably connected with the base plate, the cab including a housing bounding an interior chamber and an operator seat disposed within the housing chamber and configured to support a vehicle operator.
- the cab is linearly displaceable with respect to the base plate along a generally horizontal axis extending generally perpendicular to the vertical axis.
- FIG. 1 is a rear perspective view of a compacting vehicle having a movable operator station in accordance with the present invention, the station shown in a side-facing position;
- FIG. 2 is another rear perspective view of the compacting vehicle and operator station, the station shown in a front-facing position and the vehicle shown without drums;
- FIG. 3 is a broken-away front elevational position of the vehicle and station, the station shown in the front-facing position;
- FIG. 4 is a broken-away side elevational position of the vehicle and station, the station shown in the side-facing, retracted position;
- FIG. 5 is a broken-away side elevational position of the vehicle and station, the station shown in the side-facing, extended position;
- FIG. 6 is a bottom perspective view of a positioning mechanism for displacing the operator station with respect to the vehicle frame, shown in a retracted position;
- FIG. 7 is a bottom perspective view of a positioning mechanism for displacing the operator station with respect to the vehicle frame, shown in an extended position;
- FIG. 8 is a top perspective view of a base plate and a rotation actuator assembly
- FIG. 9 is a bottom perspective view of the base plate and rotation actuator assembly
- FIG. 10 is a bottom perspective view of a slide plate
- FIG. 11 is a partly broken-away top plan view of the rotation actuator assembly
- FIG. 12 is more diagrammatic top plan view of the positioning mechanism, shown in front-facing, retracted position
- FIG. 13 is another view of the mechanism of FIG. 13 , shown in another side-facing and retracted position;
- FIG. 14 is another view of the mechanism of FIG. 13 , shown in the side-facing and retracted position;
- FIG. 15 is another view of the mechanism of FIG. 13 , shown in the side-facing and extended position.
- FIG. 16 is a more diagrammatic view of a control system for operating the positioning mechanism.
- FIGS. 1-16 an operator station 10 for a compacting vehicle 1 , the vehicle 1 having a frame 2 and at least one compacting drum 3 rotatably connected with the frame 2 , the frame 2 preferably having a front end 2 a , a rear end 2 b , two opposing sides 2 c , 2 d extending between the ends 2 a , 2 b , and a generally horizontal upper surface 4 .
- the operator station 10 basically comprises a cab 12 movably connected with the vehicle frame 2 so as to be linearly displaceable with respect to the frame 2 along a generally horizontal axis 13 and rotatably displaceable with respect to the frame 2 about a generally vertical axis 15 .
- the vertical axis 15 extends generally perpendicularly to the frame upper surface 4 and the horizontal axis 13 extends generally parallel with respect to the upper surface 4 , the two axes 13 , 15 being generally perpendicular to each other.
- the cab 12 preferably includes a housing 14 bounding an interior chamber C I and an operator seat 16 disposed within the housing chamber C I and configured to support a vehicle operator.
- the operator station 10 further comprises a positioning mechanism 11 that includes a base plate 18 rotatably connected with the frame 2 , the cab 12 being slidably connected with the base plate 18 , a first actuator 20 configured to linearly displace the cab 12 along the horizontal axis 13 , and a second actuator 22 configured to rotatably displace the base plate 18 , and thereby the cab 12 , about the vertical axis 15 .
- a positioning mechanism 11 that includes a base plate 18 rotatably connected with the frame 2 , the cab 12 being slidably connected with the base plate 18 , a first actuator 20 configured to linearly displace the cab 12 along the horizontal axis 13 , and a second actuator 22 configured to rotatably displace the base plate 18 , and thereby the cab 12 , about the vertical axis 15 .
- the housing 14 has a front end 17 , the seat 16 being located with respect to the front end 17 such an operator faces generally toward the front when disposed upon the seat 16 .
- the base plate 18 is rotatably displaceable between a first, front-facing angular position P A1 ( FIGS. 2, 3 and 12 ) at which the front end 17 faces generally toward the frame front end 2 a and a second, side-facing angular position P A2 ( FIGS. 1, 4 , 5 , 14 and 15 ) at which the housing front end 17 faces generally toward one of the two frame sides 2 c or 2 d .
- the base plate 18 is further rotatably displaceable between the first angular position P A1 and a third, side-facing angular position P A3 ( FIG. 13 ), at which the housing front end 17 faces generally toward the other one of the two frame sides 2 d or 2 c .
- the cab housing 14 is linearly displaceable generally along the horizontal axis 13 between a first, most proximal axial or “retracted” position P X1 with respect to the vertical axis 15 and a second, most distal axial or “extended” position P X2 with respect the vertical axis 15 .
- the axial and angular positions are depicted in the drawing figures with respect to a randomly selected point(s) “P” on the station 10 for convenience only and the specific reference points used have no particular relevance to the present invention.
- the housing 14 is displaceable between the first, retracted axial position P X1 ( FIGS. 4 and 14 ) and the second, extended axial position P X2 ( FIGS. 5 and 15 ) so as to position the seat 16 , and thus the operator, in the following manner.
- the housing 14 In the first, retracted axial position P X1 shown in FIGS. 4 and 14 , the housing 14 is disposed substantially above the frame upper surface 4 , which is particularly suitable for operating the vehicle 1 in narrow confines, etc.
- the housing 14 is preferably disposed at least partially over one of the two frame sides 2 c or 2 d , so as to locate an operator disposed on the seat 16 at a position where the operator has a clear, unobstructed view of the side edges 3 a of the one or more drums 3 .
- the operator assembly 10 is preferably used with a double-drum compacting vehicle or compactor 1 having front and rear drums 3 each rotatably attached to the frame 2 and having lateral side edges 3 a .
- the frame 2 is an articulated frame having front and rear frame halves 5 A, 5 B pivotally connected by means of a joint 6 .
- the operator station 10 is preferably mounted on the front frame half 5 A, but may alternatively be mounted on the rear frame half 5 B, or be used on a solid (i.e., non-articulated) frame 2 .
- the front frame half 5 A preferably includes a box-frame portion having an upper, generally horizontal base plate 7 , which provides the frame upper surface 4 and to which the operator station 10 is mounted, and an interior chamber (not indicated) within which various components for operating and powering the station 10 and the vehicle 1 are located (e.g., pumps, tanks, hydraulic and electrical lines, etc.).
- the station 10 of the present invention is preferably used with a double-drum compactor 1
- the station 10 may be used with a single-drum compactor (not shown) or any other appropriate vehicle 1 that may be benefit from the features of the operator station 10 .
- the vehicle 1 may be another type of construction vehicle, such as for example, a bulldozer or a dump truck, or any other type of vehicle, such as a garbage hauler.
- the scope of the present invention includes these and all other appropriate types of vehicles 1 for which the operator station 10 may be utilized.
- the cab housing 14 is preferably formed as a generally rectangular-shaped box including a generally horizontal bottom wall 24 , a generally horizontal top wall 26 spaced above the bottom wall 24 , and generally vertical front and rear vertical walls 28 , 29 , respectively, extending between the top and bottom walls 24 , 26 .
- the bottom, top and side walls 24 , 26 , 28 , 29 bound the cab interior chamber C I space and the seat 16 is generally disposed on or supported by the bottom wall 24 .
- the housing 14 is formed of a plurality of struts or beams 34 forming a generally rectangular skeletal frame 36 and a plurality of panels or plates 38 attached to the skeletal frame 36 and providing the walls 24 , 26 , 28 , and 29 .
- the plates 38 are generally translucent, such as formed of glass or a transparent polymer, so as to provide windows for an operator to view therethrough.
- the housing 14 may be formed in any other appropriate manner that is capable of housing the operator interior chamber C I and supporting the operator seat 16 , such as a weldment formed of plates without a skeletal frame, as a generally cylindrical box (as opposed to generally rectangular), etc.
- the operator seat 16 is preferably fixedly mounted to a central location on the upper surface 24 a of the frame bottom wall 24 , but may alternatively be pivotally and/or linearly displaceably mounted to the bottom wall 24 .
- the bottom wall 24 preferably has a sloped section 25 disposed forwardly of the seat 16 and providing a foot rest for the vehicle operator.
- the operator cab 10 preferably further includes a control console (not shown) pivotally mounted to the wall sloped section 25 and configured to support a plurality of vehicle control devices for operating the vehicle 1 , such as a steering wheel (not shown) for pivoting the frames 5 A, 5 B about the joint 6 , a drive lever (not shown) for operating the hydraulic motors, etc.
- the positioning mechanism 11 preferably includes a generally rectangular slide plate 44 connected with the housing 14 and having a pair of spaced-apart slide rails 46 A, 46 B.
- the slide plate 44 is disposable against and connectable with the lower surface 24 b of the housing base wall 24 and is slidably connectable with the base plate 18 , as described below.
- the slide plate 44 preferably has a plurality of through holes 45 each sized to receive a shock assembly 43 contactable with the housing bottom wall 24 to movably (i.e. vertically) connect the housing 14 with the plate 44 .
- each slide rail 46 A, 46 B is formed as an angled bar 47 having a vertical section 47 a attached to the plate lower surface 44 a and a horizontal section 47 b extending toward the corresponding section 47 b of the other bar 47 .
- the two bars 47 extend generally parallel to each other and generally between the front and rear edges 44 b , 44 c of the plate 44 .
- the slide plate 44 also includes a pair of connective lugs 48 configured to connect a first end 20 a of the first actuator 20 with the cab 12 , as discussed above and in further detail below.
- the base plate 18 of the positioning mechanism 11 preferably includes a platform 50 and a pivot 52 configured to rotatably connect the platform 50 with the vehicle frame 2 , more specifically to the base plate 7 on the front frame half 5 A.
- the platform 50 has an upper surface 51 , a lower surface 53 , and a pair of opposing, outer side edges 50 a , 50 b .
- the cab 12 is generally disposed on the platform upper surface 51 through the slide plate 44 .
- the slide plate 44 is disposeable upon the platform upper surface 51 such that each slide rail 46 A, 46 B engages about and slides generally against a separate one of the platform side edges 50 a , 50 b , respectively, when the cab 12 displaces with respect to the base plate 18 .
- the vertical section 47 a of each slide rail 46 A, 46 B is disposed against a separate platform side edge 50 a , 50 b and the rail horizontal sections 47 b extend beneath the platform lower surface 53 .
- the platform 50 preferably has a generally rectangular slotted opening 54 extending between the upper and lower surfaces 51 , 53 and generally from a platform rear edge 50 c and toward a front edge 50 d .
- the slotted opening 54 is sized to at least partially receive the preferred first actuator 20 .
- a pair of connective lugs 56 are disposed in a front end 54 a of the slotted opening 54 , the lugs 56 being configured to connect a second end 20 b of the actuator 20 with the platform 50 .
- a reinforcing bar 56 extends laterally across the platform lower surface 51 proximal to a rear end 54 b of the opening 54 and is provided to increase the structural integrity of the platform 50 .
- the platform 50 also preferably has a generally circular opening 58 sized to receive a portion of the pivot 52 to connect the pivot 52 with the base plate 18 .
- the pivot 52 has a central axis 59 and includes a generally circular tubular body 60 and a generally annular mounting flange 62 connected with the tubular body 60 .
- the tubular body 60 has an upper end 60 a disposed within the platform opening 58 and a lower end (not shown) disposeable within a central opening (not shown) of the mounting flange 62 .
- the flange 62 has a plurality of through-holes (not shown) spaced circumferentially about the axis 59 and each sized to receive an upper portion of a threaded fastener (none depicted) for attaching a driven gear 78 of the second actuator 22 , as described below, to the pivot 52 , and thereby the base plate 18 .
- the first actuator 20 preferably includes a hydraulic cylinder 70 having a first end 70 a attached to the platform 50 and a second end 70 b connected with the slide plate 44 .
- the front and rear ends 70 a , 70 b are each connected with the platform lugs 56 and the slide plate lugs 48 , respectively, by means of a separate pin (neither shown).
- extension of the cylinder 70 causes the slide plate 44 to displace with respect to the base plate platform 50 in a first, outward direction 13 a along the horizontal axis 13 , thereby moving the cab housing 14 away from the vertical axis 15 and toward the second, distal or extended axial position P X2 ( FIG. 15 ).
- retraction of the cylinder 70 displaces the slide plate 44 and the housing 14 with respect to the base plate 18 in a second, inward direction 13 b along the axis 13 toward the vertical axis 15 and the first, proximal or retracted position P X1 ( FIG. 14 ).
- the cylinder 70 is extendable and alternatively retractable through a total linear displacement L D of about ten inches (10′′), thus moving the housing 14 through an equivalent displacement d H , although the total displacement of the cylinder 70 and housing 14 may have any appropriate, desired value.
- the cylinder 70 may be extended by only a portion of the total linear displacement L D , so as to position the slide plate 44 and cab housing 14 at any intermediate position (none indicated) between the retracted and extended positions P X1 , P X2 .
- the first actuator 20 may be any other appropriate device capable of linearly displacing the slide plate 44 with respect to the base plate 18 , such as for example a power screw assembly, a driven linkage, etc.
- the second actuator 22 preferably includes a drive gear 76 ( FIG. 11 ) connected with the vehicle frame 2 , a driven gear 78 connected with the base plate 18 and an engaged with the drive gear 76 , and a motor 80 configured to rotate the drive gear 76 .
- the drive gear 76 is preferably an elongated, spiral gear or worm 82 mounted to a shaft (not shown) of the motor 80 that is directly engaged with the driven gear 78 .
- the driven gear 76 is preferably a generally annular worm gear or worm wheel 84 attached to the bearing mounting flange 62 , as discussed above.
- the second actuator 22 preferably also includes a housing 86 mountable to the vehicle frame 2 , specifically to the upper plate 7 , and sized to contain the drive gear 76 and to support the motor 80 .
- the housing 86 further includes an annular bearing post 87 disposed within and configured to rotatably support the worm gear 84 .
- the base plate 18 is rotatably connected with the vehicle frame 2 through the interconnection of the pivot 52 , the gear 84 and the housing 86 , but may alternatively be directly connected to the frame 2 .
- rotation of the motor shaft 81 in a first direction S 1 ( FIG. 11 ) about its axis 81 a causes the driven gear 78 to rotate in a first angular direction 15 a about the vertical axis 15 .
- the base plate 18 and the cab housing 14 are displaced in the first direction 15 a generally toward the second angular position P A2 , and thus also toward the first angular position P A1 when starting from the third position P A3 .
- rotation of the motor shaft 81 in a second, opposing direction S 2 rotates the driven gear 78 in a second angular direction 15 b about the axis 15 .
- the base plate 18 and the cab housing 14 are rotatably displaced about the axis 15 in the second 15 b direction generally toward the third angular position P A2 , and also toward the first angular position P A1 when starting from the second position P A2 .
- the second actuator 22 is configured to rotate the housing 14 through an angular displacement A D of about 90° between each successive angular position P A1 and P A2 , P A1 and P A3 , and thus through a total angular displacement of about 180°.
- the motor 80 and gears 76 , 78 may be operated so as to position the base plate 18 and housing 14 at any desired angular position located between the first and second positions P A1 , P A2 or the first and third positions P A1 , P A3 .
- the second actuator 22 may have any appropriate structure for rotatably displacing the base plate 18 .
- the second actuator 22 may include one or more intermediate gears (none shown) engaged with the drive gear 76 and/or the driven gear 78 , the drive gear 76 may be provided by a spur pinion gear as opposed to a worm gear, the second actuator 22 may include or be primarily comprised of a driven linkage or bar mechanism, etc.
- the scope of the present invention encompasses these and all appropriate structures for the second actuator 22 that are capable of rotatably displacing the base plate 18 and thereby the cab 12 .
- the operator station 10 preferably further includes a first control unit 90 configured to operate the first actuator 20 and a second control unit 92 configured to operate the second actuator 22 .
- each control unit 90 , 92 has an operator control device 91 , 93 , respectively, such as a lever, knob, switch, etc., mounted to the control console 40 so as to be located proximal to an operator O disposed on the operator seat 16 .
- a single operator device (not shown) may be provided to control the operation of both the first and second actuators 20 , 22 , for example an appropriately configured joystick.
- the first control unit 90 preferably further includes a control valve 94 operably connected with the first control device 91 and configured to control flow through the preferred hydraulic cylinder 70 , and thereby cylinder extension and retraction, to thus locate the cab 12 at any desired position along the horizontal axis 13 .
- the first control unit 90 also preferably includes a linear position sensor 95 configured to sense the specific location of the cab housing 14 on the horizontal axis 13 , such as for example, a linear displacement transducer configured to sense the amount of extension or retraction of the cylinder 70 from a reference position.
- the second control unit 92 further includes a motor controller 96 operably connected with the second control device 93 and configured to operate the motor 80 so as to position the base plate 18 , and thus the cab housing 14 , to a desired angular position about the vertical axis 15 .
- the second control unit 92 also includes an angular position sensor 96 configured to provide an indication of the specific angular position of the cab housing 14 about the vertical axis 15 , such as for example, an encoder sensing the angular displacement of the motor shaft 81 or the bearing 50 , etc.
- the motor 80 may be provided by a stepper motor, such that an angular position sensor may be unnecessary.
- the two control units 90 , 92 may alternatively be provided by a single controller (not shown) having separate channels controlling the control valve 94 and the motor controller 96 .
- an operator located on the seat 16 positions the cab 12 as desired in generally the following manner.
- the cab housing 14 may be located in the first, retracted axial position P X1 proximal to the frame front end 2 a and the base plate 18 may be located in the first, front-facing angular position P A1 , and thus disposed in a generally centered configuration on the frame upper surface 4 .
- the vehicle operator desires to view one of the drum lateral side edges 3 a , such as when guiding the compactor drums 3 along the edge E of an asphalt mat M ( FIG.
- the operator station 10 may be repositioned in the following manner.
- the operator first rotates the entire operator station 10 about the vertical axis 15 by operating the motor 80 and gear train 76 , 78 so as to angularly displace the base plate 18 from the first, front-facing angular position P A1 to either the second, side-facing angular position P A2 or the third, side-facing angular position P A3 , preferably by means of the second control unit 92 .
- the vehicle operator linearly displaces the cab housing 14 by operating the hydraulic cylinder 70 , preferably by means of the first control unit 90 , such that the slide plate 44 (and thus the housing 14 ) displaces along the horizontal axis 13 from the proximal, retracted axial position P X1 to the distal, extended axial position P X2 , or to any intermediate axial position (none indicated) located between the proximal and distal positions P X1 , P X2
- the housing 14 is preferably disposed over the proximal frame sides 2 a or 2 b to provide the operator with a direct view of the proximal drum edge 3 a.
- the operator When it is desired to move the operator station 10 back to the centered position on the frame 2 , the operator first retracts the cylinder 70 to linearly displace the slide plate 44 and housing 14 to the proximal, retracted axial position P X1 , and then operates the motor 80 to rotatably displace the base plate 18 and cab 12 to the first, front-facing angular position P A1 .
- the vehicle 1 it is generally preferred to operate the vehicle 1 with the operator station either in the centered, front-facing configuration ( FIGS. 2, 3 and 12 ) or one of the laterally-extended, side-facing configurations ( FIGS.
- the vehicle 1 may be operated with the housing 14 positioned at any axial location on the horizontal axis 13 between the proximal and distal axial positions P X1 , P X2 , and/or at any angular location about the vertical axis 15 between the second and third angular positions P A2 , P A3 .
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Abstract
Description
- The present invention relates to compactor vehicles, and more specifically to operator stations for compactor vehicles.
- Construction vehicles such as compactors typically include an operator station or seat mounted on a main frame of the vehicle. With compactors, an operator is located on the seat or within a cab and directs operation of the vehicle by viewing the edges of the one or more compacting drums of the vehicle. It is thus critical for the operator, to have an unobstructed view of the drum edges in order to guide the vehicle to travel upon a work surface, such as a mat of asphalt.
- In one aspect, the present invention is an operator station for a compacting vehicle having a frame and at least one compacting drum rotatably connected with the frame. The operator station comprises a base plate rotatably connected with the frame and an operator cab slidably connected with the base plate. The cab includes a housing bounding an interior chamber and an operator seat disposed within the housing chamber and configured to support a vehicle operator. Further, an actuator is configured to linearly displace the housing with respect to the base plate.
- In another aspect, the present invention is also an operator station for a construction vehicle having a frame. The operator station comprises an operator cab movably connected with the vehicle frame so as to be linearly displaceable with respect to the frame along a generally horizontal axis and rotatably displaceable with respect to the frame about a generally vertical axis. A first actuator is configured to linearly displace the cab along the horizontal axis. Further, a second actuator is configured to rotatably displace the base plate about the vertical axis.
- In a further aspect, the present invention is again an operator station for a compacting vehicle having a frame and at least one compacting drum rotatably connected with the frame, the frame having a generally horizontal upper surface. The operator station comprises a base plate disposed on the frame upper surface and movably connected with the frame so as to be rotatably displaceable about a generally vertical axis extending generally perpendicularly with respect to the frame upper surface. An operator cab is slidably connected with the base plate, the cab including a housing bounding an interior chamber and an operator seat disposed within the housing chamber and configured to support a vehicle operator. The cab is linearly displaceable with respect to the base plate along a generally horizontal axis extending generally perpendicular to the vertical axis.
- The foregoing summary, as well as the detailed description of the preferred embodiments of the present invention, will be better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, there is shown in the drawings, which are diagrammatic, embodiments that are presently preferred. It should be understood, however, that the present invention is not limited to the precise arrangements and instrumentalities shown. In the drawings:
-
FIG. 1 is a rear perspective view of a compacting vehicle having a movable operator station in accordance with the present invention, the station shown in a side-facing position; -
FIG. 2 is another rear perspective view of the compacting vehicle and operator station, the station shown in a front-facing position and the vehicle shown without drums; -
FIG. 3 is a broken-away front elevational position of the vehicle and station, the station shown in the front-facing position; -
FIG. 4 is a broken-away side elevational position of the vehicle and station, the station shown in the side-facing, retracted position; -
FIG. 5 is a broken-away side elevational position of the vehicle and station, the station shown in the side-facing, extended position; -
FIG. 6 is a bottom perspective view of a positioning mechanism for displacing the operator station with respect to the vehicle frame, shown in a retracted position; -
FIG. 7 is a bottom perspective view of a positioning mechanism for displacing the operator station with respect to the vehicle frame, shown in an extended position; -
FIG. 8 is a top perspective view of a base plate and a rotation actuator assembly; -
FIG. 9 is a bottom perspective view of the base plate and rotation actuator assembly; -
FIG. 10 is a bottom perspective view of a slide plate; -
FIG. 11 is a partly broken-away top plan view of the rotation actuator assembly; -
FIG. 12 is more diagrammatic top plan view of the positioning mechanism, shown in front-facing, retracted position; -
FIG. 13 is another view of the mechanism ofFIG. 13 , shown in another side-facing and retracted position; -
FIG. 14 is another view of the mechanism ofFIG. 13 , shown in the side-facing and retracted position; -
FIG. 15 is another view of the mechanism ofFIG. 13 , shown in the side-facing and extended position; and -
FIG. 16 is a more diagrammatic view of a control system for operating the positioning mechanism. - Certain terminology is used in the following description for convenience only and is not limiting. The words “right”, “left”, “lower”, “upper” designate directions in the drawings to which reference is made. The words “inner”, “inwardly” and “outer”, “outwardly” refer to directions toward and away from, respectively, a designated centerline or a geometric center of an element being described, the particular meaning being readily apparent from the context of the description. Further, as used herein, the word “connected” is intended to include direct connections between two members without any other members interposed therebetween and indirect connections between members in which one or more other members are interposed therebetween. The terminology includes the words specifically mentioned above, derivatives thereof, and words of similar import.
- Referring now to the drawings in detail, wherein like numbers are used to indicate like elements throughout, there is shown in
FIGS. 1-16 anoperator station 10 for acompacting vehicle 1, thevehicle 1 having a frame 2 and at least one compactingdrum 3 rotatably connected with the frame 2, the frame 2 preferably having a front end 2 a, a rear end 2 b, two opposing sides 2 c, 2 d extending between the ends 2 a, 2 b, and a generally horizontalupper surface 4. Theoperator station 10 basically comprises acab 12 movably connected with the vehicle frame 2 so as to be linearly displaceable with respect to the frame 2 along a generallyhorizontal axis 13 and rotatably displaceable with respect to the frame 2 about a generallyvertical axis 15. Thevertical axis 15 extends generally perpendicularly to the frameupper surface 4 and thehorizontal axis 13 extends generally parallel with respect to theupper surface 4, the twoaxes cab 12 preferably includes ahousing 14 bounding an interior chamber CI and anoperator seat 16 disposed within the housing chamber CI and configured to support a vehicle operator. Preferably, theoperator station 10 further comprises a positioning mechanism 11 that includes abase plate 18 rotatably connected with the frame 2, thecab 12 being slidably connected with thebase plate 18, afirst actuator 20 configured to linearly displace thecab 12 along thehorizontal axis 13, and asecond actuator 22 configured to rotatably displace thebase plate 18, and thereby thecab 12, about thevertical axis 15. - More specifically, the
housing 14 has afront end 17, theseat 16 being located with respect to thefront end 17 such an operator faces generally toward the front when disposed upon theseat 16. Thebase plate 18 is rotatably displaceable between a first, front-facing angular position PA1 (FIGS. 2, 3 and 12) at which thefront end 17 faces generally toward the frame front end 2 a and a second, side-facing angular position PA2 (FIGS. 1, 4 , 5, 14 and 15) at which thehousing front end 17 faces generally toward one of the two frame sides 2 c or 2 d. Preferably, thebase plate 18 is further rotatably displaceable between the first angular position PA1 and a third, side-facing angular position PA3 (FIG. 13 ), at which thehousing front end 17 faces generally toward the other one of the two frame sides 2 d or 2 c. Further, thecab housing 14 is linearly displaceable generally along thehorizontal axis 13 between a first, most proximal axial or “retracted” position PX1 with respect to thevertical axis 15 and a second, most distal axial or “extended” position PX2 with respect thevertical axis 15. It must be noted that the axial and angular positions are depicted in the drawing figures with respect to a randomly selected point(s) “P” on thestation 10 for convenience only and the specific reference points used have no particular relevance to the present invention. - With this structure, when the
base plate 18 is disposed in the second, side-facing angular position PA2 (FIGS. 1, 4 , 5, 14 and 15) or in the third, side-facing angular position PA3 (FIG. 13 ), thehousing 14 is displaceable between the first, retracted axial position PX1 (FIGS. 4 and 14 ) and the second, extended axial position PX2 (FIGS. 5 and 15 ) so as to position theseat 16, and thus the operator, in the following manner. In the first, retracted axial position PX1 shown inFIGS. 4 and 14 , thehousing 14 is disposed substantially above the frameupper surface 4, which is particularly suitable for operating thevehicle 1 in narrow confines, etc. In the second, extended axial position PX2 depicted inFIGS. 5 and 15 , thehousing 14 is preferably disposed at least partially over one of the two frame sides 2 c or 2 d, so as to locate an operator disposed on theseat 16 at a position where the operator has a clear, unobstructed view of the side edges 3 a of the one ormore drums 3. - Having described the basic elements above, these and other components of the operator station of the present invention are described in detail below.
- Referring first to
FIGS. 1-5 , theoperator assembly 10 is preferably used with a double-drum compacting vehicle orcompactor 1 having front andrear drums 3 each rotatably attached to the frame 2 and having lateral side edges 3 a. Preferably, the frame 2 is an articulated frame having front andrear frame halves 5A, 5B pivotally connected by means of ajoint 6. Theoperator station 10 is preferably mounted on the front frame half 5A, but may alternatively be mounted on therear frame half 5B, or be used on a solid (i.e., non-articulated) frame 2. Further, the front frame half 5A preferably includes a box-frame portion having an upper, generallyhorizontal base plate 7, which provides the frameupper surface 4 and to which theoperator station 10 is mounted, and an interior chamber (not indicated) within which various components for operating and powering thestation 10 and thevehicle 1 are located (e.g., pumps, tanks, hydraulic and electrical lines, etc.). - Although the
operator station 10 of the present invention is preferably used with a double-drum compactor 1, thestation 10 may be used with a single-drum compactor (not shown) or any otherappropriate vehicle 1 that may be benefit from the features of theoperator station 10. For example, thevehicle 1 may be another type of construction vehicle, such as for example, a bulldozer or a dump truck, or any other type of vehicle, such as a garbage hauler. The scope of the present invention includes these and all other appropriate types ofvehicles 1 for which theoperator station 10 may be utilized. - Still referring to
FIGS. 1-5 , thecab housing 14 is preferably formed as a generally rectangular-shaped box including a generallyhorizontal bottom wall 24, a generally horizontaltop wall 26 spaced above thebottom wall 24, and generally vertical front and rearvertical walls bottom walls side walls seat 16 is generally disposed on or supported by thebottom wall 24. Most preferably, thehousing 14 is formed of a plurality of struts orbeams 34 forming a generally rectangularskeletal frame 36 and a plurality of panels orplates 38 attached to theskeletal frame 36 and providing thewalls plates 38 are generally translucent, such as formed of glass or a transparent polymer, so as to provide windows for an operator to view therethrough. However, thehousing 14 may be formed in any other appropriate manner that is capable of housing the operator interior chamber CI and supporting theoperator seat 16, such as a weldment formed of plates without a skeletal frame, as a generally cylindrical box (as opposed to generally rectangular), etc. - Referring particularly to
FIGS. 1, 2 , 4 and 5, theoperator seat 16 is preferably fixedly mounted to a central location on theupper surface 24 a of theframe bottom wall 24, but may alternatively be pivotally and/or linearly displaceably mounted to thebottom wall 24. Thebottom wall 24 preferably has a slopedsection 25 disposed forwardly of theseat 16 and providing a foot rest for the vehicle operator. Further, theoperator cab 10 preferably further includes a control console (not shown) pivotally mounted to the wall slopedsection 25 and configured to support a plurality of vehicle control devices for operating thevehicle 1, such as a steering wheel (not shown) for pivoting theframes 5A, 5B about the joint 6, a drive lever (not shown) for operating the hydraulic motors, etc. - Referring now to
FIGS. 3-7 and 10, the positioning mechanism 11 preferably includes a generallyrectangular slide plate 44 connected with thehousing 14 and having a pair of spaced-apart slide rails 46A, 46B. Theslide plate 44 is disposable against and connectable with the lower surface 24 b of thehousing base wall 24 and is slidably connectable with thebase plate 18, as described below. Theslide plate 44 preferably has a plurality of throughholes 45 each sized to receive ashock assembly 43 contactable with thehousing bottom wall 24 to movably (i.e. vertically) connect thehousing 14 with theplate 44. Further, eachslide rail angled bar 47 having avertical section 47 a attached to the plate lower surface 44 a and a horizontal section 47 b extending toward the corresponding section 47 b of theother bar 47. The twobars 47 extend generally parallel to each other and generally between the front and rear edges 44 b, 44 c of theplate 44. Furthermore, theslide plate 44 also includes a pair ofconnective lugs 48 configured to connect a first end 20 a of thefirst actuator 20 with thecab 12, as discussed above and in further detail below. - Referring to
FIGS. 3 and 5 -9, thebase plate 18 of the positioning mechanism 11 preferably includes aplatform 50 and apivot 52 configured to rotatably connect theplatform 50 with the vehicle frame 2, more specifically to thebase plate 7 on the front frame half 5A. Theplatform 50 has anupper surface 51, alower surface 53, and a pair of opposing, outer side edges 50 a, 50 b. Thecab 12 is generally disposed on the platformupper surface 51 through theslide plate 44. That is, theslide plate 44 is disposeable upon the platformupper surface 51 such that eachslide rail cab 12 displaces with respect to thebase plate 18. Specifically, thevertical section 47 a of eachslide rail platform side edge lower surface 53. Further, theplatform 50 preferably has a generally rectangular slottedopening 54 extending between the upper andlower surfaces front edge 50 d. The slottedopening 54 is sized to at least partially receive the preferredfirst actuator 20. Further, a pair ofconnective lugs 56 are disposed in a front end 54 a of the slottedopening 54, thelugs 56 being configured to connect a second end 20 b of theactuator 20 with theplatform 50. Preferably, a reinforcingbar 56 extends laterally across the platformlower surface 51 proximal to a rear end 54 b of theopening 54 and is provided to increase the structural integrity of theplatform 50. Additionally, theplatform 50 also preferably has a generallycircular opening 58 sized to receive a portion of thepivot 52 to connect thepivot 52 with thebase plate 18. - Further, the
pivot 52 has a central axis 59 and includes a generally circulartubular body 60 and a generally annular mountingflange 62 connected with thetubular body 60. Thetubular body 60 has an upper end 60 a disposed within theplatform opening 58 and a lower end (not shown) disposeable within a central opening (not shown) of the mountingflange 62. Theflange 62 has a plurality of through-holes (not shown) spaced circumferentially about the axis 59 and each sized to receive an upper portion of a threaded fastener (none depicted) for attaching a drivengear 78 of thesecond actuator 22, as described below, to thepivot 52, and thereby thebase plate 18. - Referring to
FIGS. 6-9 and 12-15, thefirst actuator 20 preferably includes ahydraulic cylinder 70 having a first end 70 a attached to theplatform 50 and a second end 70 b connected with theslide plate 44. Specifically, the front and rear ends 70 a, 70 b are each connected with the platform lugs 56 and the slide plate lugs 48, respectively, by means of a separate pin (neither shown). With this structure, extension of thecylinder 70 causes theslide plate 44 to displace with respect to thebase plate platform 50 in a first, outward direction 13 a along thehorizontal axis 13, thereby moving thecab housing 14 away from thevertical axis 15 and toward the second, distal or extended axial position PX2 (FIG. 15 ). Alternatively, retraction of thecylinder 70 displaces theslide plate 44 and thehousing 14 with respect to thebase plate 18 in a second,inward direction 13 b along theaxis 13 toward thevertical axis 15 and the first, proximal or retracted position PX1 (FIG. 14 ). Preferably, thecylinder 70 is extendable and alternatively retractable through a total linear displacement LD of about ten inches (10″), thus moving thehousing 14 through an equivalent displacement dH, although the total displacement of thecylinder 70 andhousing 14 may have any appropriate, desired value. Further, thecylinder 70 may be extended by only a portion of the total linear displacement LD, so as to position theslide plate 44 andcab housing 14 at any intermediate position (none indicated) between the retracted and extended positions PX1, PX2. Although a hydraulic cylinder is preferred, thefirst actuator 20 may be any other appropriate device capable of linearly displacing theslide plate 44 with respect to thebase plate 18, such as for example a power screw assembly, a driven linkage, etc. - Referring now to
FIGS. 5-9 and 11-15, thesecond actuator 22 preferably includes a drive gear 76 (FIG. 11 ) connected with the vehicle frame 2, a drivengear 78 connected with thebase plate 18 and an engaged with thedrive gear 76, and amotor 80 configured to rotate thedrive gear 76. As depicted inFIG. 11 , thedrive gear 76 is preferably an elongated, spiral gear orworm 82 mounted to a shaft (not shown) of themotor 80 that is directly engaged with the drivengear 78. The drivengear 76 is preferably a generally annular worm gear orworm wheel 84 attached to thebearing mounting flange 62, as discussed above. Further, thesecond actuator 22 preferably also includes ahousing 86 mountable to the vehicle frame 2, specifically to theupper plate 7, and sized to contain thedrive gear 76 and to support themotor 80. Preferably, thehousing 86 further includes an annular bearing post 87 disposed within and configured to rotatably support theworm gear 84. As such, thebase plate 18 is rotatably connected with the vehicle frame 2 through the interconnection of thepivot 52, thegear 84 and thehousing 86, but may alternatively be directly connected to the frame 2. - With this structure, rotation of the
motor shaft 81 in a first direction S1 (FIG. 11 ) about its axis 81 a causes the drivengear 78 to rotate in a first angular direction 15 a about thevertical axis 15. Thereby, thebase plate 18 and thecab housing 14 are displaced in the first direction 15 a generally toward the second angular position PA2, and thus also toward the first angular position PA1 when starting from the third position PA3. Alternatively, rotation of themotor shaft 81 in a second, opposing direction S2 rotates the drivengear 78 in a second angular direction 15 b about theaxis 15. As such, thebase plate 18 and thecab housing 14 are rotatably displaced about theaxis 15 in the second 15 b direction generally toward the third angular position PA2, and also toward the first angular position PA1 when starting from the second position PA2. Preferably, thesecond actuator 22 is configured to rotate thehousing 14 through an angular displacement AD of about 90° between each successive angular position PA1 and PA2, PA1 and PA3, and thus through a total angular displacement of about 180°. Further, themotor 80 and gears 76, 78 may be operated so as to position thebase plate 18 andhousing 14 at any desired angular position located between the first and second positions PA1, PA2 or the first and third positions PA1, PA3. - Although a motor-driven
worm 76 directly driving aworm wheel 78 is presently preferred, thesecond actuator 22 may have any appropriate structure for rotatably displacing thebase plate 18. For example, thesecond actuator 22 may include one or more intermediate gears (none shown) engaged with thedrive gear 76 and/or the drivengear 78, thedrive gear 76 may be provided by a spur pinion gear as opposed to a worm gear, thesecond actuator 22 may include or be primarily comprised of a driven linkage or bar mechanism, etc. The scope of the present invention encompasses these and all appropriate structures for thesecond actuator 22 that are capable of rotatably displacing thebase plate 18 and thereby thecab 12. - Referring particularly to
FIG. 16 , theoperator station 10 preferably further includes afirst control unit 90 configured to operate thefirst actuator 20 and asecond control unit 92 configured to operate thesecond actuator 22. Preferably, eachcontrol unit operator control device operator seat 16. Alternatively, a single operator device (not shown) may be provided to control the operation of both the first andsecond actuators - The
first control unit 90 preferably further includes acontrol valve 94 operably connected with thefirst control device 91 and configured to control flow through the preferredhydraulic cylinder 70, and thereby cylinder extension and retraction, to thus locate thecab 12 at any desired position along thehorizontal axis 13. Further, thefirst control unit 90 also preferably includes alinear position sensor 95 configured to sense the specific location of thecab housing 14 on thehorizontal axis 13, such as for example, a linear displacement transducer configured to sense the amount of extension or retraction of thecylinder 70 from a reference position. - The
second control unit 92 further includes amotor controller 96 operably connected with thesecond control device 93 and configured to operate themotor 80 so as to position thebase plate 18, and thus thecab housing 14, to a desired angular position about thevertical axis 15. Preferably, thesecond control unit 92 also includes anangular position sensor 96 configured to provide an indication of the specific angular position of thecab housing 14 about thevertical axis 15, such as for example, an encoder sensing the angular displacement of themotor shaft 81 or thebearing 50, etc. Alternatively, themotor 80 may be provided by a stepper motor, such that an angular position sensor may be unnecessary. Furthermore, the twocontrol units control valve 94 and themotor controller 96. - In use, an operator located on the
seat 16 positions thecab 12 as desired in generally the following manner. When thevehicle 1 is being driven between work sites or during a work operation in which a view of either drum edge(s) 3 a is not essential, thecab housing 14 may be located in the first, retracted axial position PX1 proximal to the frame front end 2 a and thebase plate 18 may be located in the first, front-facing angular position PA1, and thus disposed in a generally centered configuration on the frameupper surface 4. However, when the vehicle operator desires to view one of the drum lateral side edges 3 a, such as when guiding the compactor drums 3 along the edge E of an asphalt mat M (FIG. 5 ), theoperator station 10 may be repositioned in the following manner. Preferably, the operator first rotates theentire operator station 10 about thevertical axis 15 by operating themotor 80 andgear train base plate 18 from the first, front-facing angular position PA1 to either the second, side-facing angular position PA2 or the third, side-facing angular position PA3, preferably by means of thesecond control unit 92. Then, the vehicle operator linearly displaces thecab housing 14 by operating thehydraulic cylinder 70, preferably by means of thefirst control unit 90, such that the slide plate 44 (and thus the housing 14) displaces along thehorizontal axis 13 from the proximal, retracted axial position PX1 to the distal, extended axial position PX2, or to any intermediate axial position (none indicated) located between the proximal and distal positions PX1, PX2 As such, when theoperator station 10 is located in a left or right laterally-extended configuration (FIGS. 5 and 15 ), thehousing 14 is preferably disposed over the proximal frame sides 2 a or 2 b to provide the operator with a direct view of the proximal drum edge 3 a. - When it is desired to move the
operator station 10 back to the centered position on the frame 2, the operator first retracts thecylinder 70 to linearly displace theslide plate 44 andhousing 14 to the proximal, retracted axial position PX1, and then operates themotor 80 to rotatably displace thebase plate 18 andcab 12 to the first, front-facing angular position PA1. Although it is generally preferred to operate thevehicle 1 with the operator station either in the centered, front-facing configuration (FIGS. 2, 3 and 12) or one of the laterally-extended, side-facing configurations (FIGS. 1, 4 , 5 and 13-16), thevehicle 1 may be operated with thehousing 14 positioned at any axial location on thehorizontal axis 13 between the proximal and distal axial positions PX1, PX2, and/or at any angular location about thevertical axis 15 between the second and third angular positions PA2, PA3. - It will be appreciated by those skilled in the art that changes could be made to the embodiments described above without departing from the broad inventive concept thereof. It is understood, therefore, that this invention is not limited to the particular embodiments disclosed, but it is intended to cover modifications within the spirit and scope of the present invention as defined in the appended claims.
Claims (21)
Priority Applications (4)
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US10/918,001 US7004275B1 (en) | 2004-08-13 | 2004-08-13 | Movable operator station for vehicles |
DE602005022885T DE602005022885D1 (en) | 2004-08-13 | 2005-08-15 | MOVABLE OPERATOR STATION FOR VEHICLE |
PCT/US2005/028789 WO2006020894A2 (en) | 2004-08-13 | 2005-08-15 | Movable operator station for vehicles |
EP05789131A EP1786661B1 (en) | 2004-08-13 | 2005-08-15 | Movable operator station for vehicles |
Applications Claiming Priority (1)
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US10/918,001 US7004275B1 (en) | 2004-08-13 | 2004-08-13 | Movable operator station for vehicles |
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US20060034661A1 true US20060034661A1 (en) | 2006-02-16 |
US7004275B1 US7004275B1 (en) | 2006-02-28 |
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US10/918,001 Expired - Fee Related US7004275B1 (en) | 2004-08-13 | 2004-08-13 | Movable operator station for vehicles |
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US20210122432A1 (en) * | 2019-10-23 | 2021-04-29 | Roadtec, Inc. | Material transfer vehicle with movable operator's platform |
US11312422B2 (en) * | 2019-03-04 | 2022-04-26 | Hamm Ag | Control station for a soil-processing machine |
CN114960355A (en) * | 2022-06-01 | 2022-08-30 | 西安邮电大学 | Asphalt pavement leveling device |
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US7204546B2 (en) * | 2005-03-11 | 2007-04-17 | Saf-T-Cab, Inc. | Vehicle cab slide pivot |
US7540685B2 (en) * | 2005-04-11 | 2009-06-02 | Caterpillar Paving Products Inc. | Movable operator station for a machine |
US8434795B2 (en) * | 2007-08-02 | 2013-05-07 | Saf-T-Cab, Inc. | Dual door release handle |
US7581341B1 (en) * | 2008-05-23 | 2009-09-01 | Reeves Jr James B | Wheel loader |
US20110017482A1 (en) * | 2009-07-23 | 2011-01-27 | Keith Carl A | Roller Technology |
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US10960938B2 (en) | 2018-09-24 | 2021-03-30 | Caterpillar Paving Products Inc. | Movable operator station movement limiting system |
US11794823B2 (en) * | 2019-04-05 | 2023-10-24 | Worldwide Machinery, Ltd. | Pipeline padding machine cab assembly |
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US9181664B2 (en) | 2007-04-19 | 2015-11-10 | Wirtgen Gmbh | Automotive construction machine |
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WO2009053525A1 (en) * | 2007-10-25 | 2009-04-30 | Tts Liftec Oy | Lifting transportation device |
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US8800705B2 (en) | 2010-08-30 | 2014-08-12 | Barko Specialty Equipment, Llc | Roll-out cab for off-road equipment |
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US11312422B2 (en) * | 2019-03-04 | 2022-04-26 | Hamm Ag | Control station for a soil-processing machine |
CN111733665A (en) * | 2019-03-25 | 2020-10-02 | 卡特彼勒路面机械公司 | Operator console |
US20210122432A1 (en) * | 2019-10-23 | 2021-04-29 | Roadtec, Inc. | Material transfer vehicle with movable operator's platform |
US11858561B2 (en) * | 2019-10-23 | 2024-01-02 | Roadtec, Inc. | Material transfer vehicle with movable operator's platform |
CN112319629A (en) * | 2020-11-06 | 2021-02-05 | 扬州沃盛车业制造有限公司 | Vehicle-carrying platform and parking self-generating power station cab |
CN114960355A (en) * | 2022-06-01 | 2022-08-30 | 西安邮电大学 | Asphalt pavement leveling device |
CN115142506A (en) * | 2022-06-28 | 2022-10-04 | 三一重机有限公司 | Cab protection device and working machine |
Also Published As
Publication number | Publication date |
---|---|
WO2006020894A3 (en) | 2006-07-20 |
WO2006020894A2 (en) | 2006-02-23 |
EP1786661B1 (en) | 2010-08-11 |
EP1786661A4 (en) | 2008-11-26 |
DE602005022885D1 (en) | 2010-09-23 |
EP1786661A2 (en) | 2007-05-23 |
US7004275B1 (en) | 2006-02-28 |
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