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
  • E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
  • E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
  • E01C19/40—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers
  • E01C19/405—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers with spreading-out, levelling or smoothing means other than the tamping or vibrating means for compacting or smoothing, e.g. with screws for spreading-out the previously dumped material, with non-vibratory lengthwise reciprocated smoothing beam
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
  • B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
  • B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements

Definitions

• the present invention relates generally to an apparatus and method for improving the control and productivity of a concrete screeding machine during the leveling and smoothing of freshly poured concrete that has been placed over a surface.
• the screeding machine may include a joystick swap control that is actuatable by an operator of the screeding machine, whereby the right joystick control controls the second functions and the left joystick control controls the first functions in response to actuation of the joystick swap control.
• a joystick swap control that is actuatable by an operator of the screeding machine, whereby the right joystick control controls the second functions and the left joystick control controls the first functions in response to actuation of the joystick swap control.
• FIG. 4 is an enlarged perspective view of the area A of the left end of the screed head assembly of FIG. 3, showing components of an auger adjustment mechanism of the present invention
• FIG. 10 is a perspective view of the stop plate welded assembly of the improved auger adjustment mechanism;
• FIG. 11 is a perspective view of the underside of a 14.5 foot auger support beam welded assembly structural member of a screed head assembly of the present invention;
• FIG. 12 is an enlarged perspective view of the left end area A of the underside of the
• FIG. 18 is an enlarged perspective view of the area A of the center portion of the screed elevation beam structural support assembly of the screed head assembly of FIG. 17, showing the screed head hydraulic manifold in a pivoted-out position for improved access (with the pivot stop pin shown above a hole in the manifold plate that may be aligned with a second corresponding hole or notch or portion of the screed elevation beam structural support assembly to limit pivotal movement of the manifold);
• FIG. 25 is a left side perspective view of the 12.5 foot screed head and telescopic boom assembly of the concrete leveling and screeding machine shown in FIG. 1, where the screed head assembly is tipped and the plow is pinned in the raised position for improved access for ease of cleaning and maintenance;
• FIG. 26 is an enlarged perspective view of the left end area A of the 12.5 foot screed head assembly of FIG. 25, where the screed head assembly is tipped and the plow is pinned in the raised position for improved access for ease of cleaning and maintenance;
• FIG. 10 illustrates the stop plate welded assembly 34, which includes a dowel pin 34a at the rear for engagement with a correspondingly-sized hole 28d (FIG. 12) within the inner bearing support plate 28e of the end portion 28a of auger support beam welded assembly 28 and a fastener clearance hole 34b centrally located in the front tab 34c of the stop plate welded assembly 34.
• a dowel pin 34a at the rear for engagement with a correspondingly-sized hole 28d (FIG. 12) within the inner bearing support plate 28e of the end portion 28a of auger support beam welded assembly 28 and a fastener clearance hole 34b centrally located in the front tab 34c of the stop plate welded assembly 34.
• Typical Somero LASER SCREEDTM screeding machines have been known to have utilized a patented screed head self-leveling system, whereby the angle-of-attack of the screed head is actively controlled and maintained within a specific range of levelness by an electronically-controlled level sensor, controller, a pair of hydraulic self-leveling cylinders and an hydraulic system.
• a screed head self-leveling system is described in U.S. Pat. No. 4,930,935, entitled SCREEDING APPARATUS AND METHOD, which is hereby incorporated herein by reference in its entirety, such that the details of this system need not be presented herein.
• the operator can simply and momentarily depress a single button (Boom Speed Cruise Control or Screed Speed) to automatically engage the desired and previously pre-set boom and screed head travel speed stored in the control system memory.
• a single button Boom Speed Cruise Control or Screed Speed
• the operator may simply press the cruise control or screed speed button a second time or may press another button or input that is designated to disengage this control function.
• the operator can simply relax while maintaining a more relaxed grip on the joy-stick while simply holding it in a general and relative position, since the exact relative position of the controller is no longer critical toward maintaining the correct and desired boom and screed head travel speed. Should the operator simply let go of the joy- stick handle, the boom and screed head will instantaneously or substantially instantaneously stop through activation of a "dead man" switch or trigger located within the grip of the handle. Additionally, the pre-set boom speed for Boom Speed Cruise Control mode can be readily changed or updated within the control systems stored memory by another single press of a button once the operator has identified a better or more preferred setting.
• the operator may set the stabilizers' extend or retract position at the beginning of the job. Following a button press from the operator, the stabilizers will extend or retract to the preset position. Using the individual stabilizer rocker switches, the operator can further adjust the stabilizers as necessary to account for differences in subgrade elevation. Optionally, the operator can use manual stabilizers if preferred.
• the auto-stabilizers feature may have a default setting to be always off (disengaged) on machine startup, and/or the auto- stabilizers settings may not be affected or erased from memory when the machine is shutdown or the master switch is shutoff.
• the operator may press or select the "timed lower” function (such as by pressing the Timed Lower button 4 of the right joystick controller of FIG. 33E), whereby the auger and vibrator automatically turn on at the start of the screed pass.
• the auger and vibrator will also automatically turn off, such as after about 3 seconds, when timed raise function is selected (such as by pressing the Timed Raise button 3 of the right joystick controller of FIG. 33E) and when the screed head is at the end of a screeding pass.
• the steering of the machine's four wheels thus may be controlled electronically by operator positional input at the joy-stick handle, the machine's electronic controller, and electrically controlled proportional hydraulic valves that control the flow of hydraulic fluid or oil to and from the four steering cylinders located on the machine's two drive axle assemblies.
• a dead man switch on the joy-stick may also be engaged in order for the steering to function. This prevents the wheels from being steered if the joy-stick is simply bumped unintentionally by the operator or any other way.
• the steering system may be provided with a mode switch offering the operator the choice of 2-wheel steering (such as front wheels only), 4-wheel steering (front and rear wheels are steered in opposite directions at the same time for minimum turning radius), and crab-steer (front and rear wheels are steered in like directions at the same time providing an oblique direction of travel left or right while driving the machine).
• 2-wheel steering such as front wheels only
• 4-wheel steering front and rear wheels are steered in opposite directions at the same time for minimum turning radius
• crab-steer front and rear wheels are steered in like directions at the same time providing an oblique direction of travel left or right while driving the machine.
• the Joystick Swap switch is a momentary type switch whereby once the switch has been activated the joystick control functions are effectively reversed.
• the joystick control functions may be returned to their original or default settings by either pressing or actuating the swap button a second time or by turning off the machine.
• the joystick swap button may have a safety or lock on it to limit or substantially reduce the possibility of an operator inadvertently switching the joystick functions.
• the screeding machine may include a remote auger and vibrator speed adjust function, where the operator may adjust a slider bar or other suitable input, such as at the display, to increase or decrease the auger and/or vibrator speeds.
• the speeds may change as the slider bar is moved.
• the operator may press or switch a button or input to save the setting.
• the slider bars may adjust the auger and vibrator speeds for both the preset and manual speeds.
• the auger and vibrator speeds may be adjusted by the operator from the operator's station or platform and while the operator is operating the screeding machine.
• a screeding machine of the present invention may include or provide various control features, such as a boom speed cruise control feature, and/or an automatic stabilizer control feature, and/or an automatic on/off control feature of the auger and vibrator of the screed head, and/or a joystick steering feature, and/or an operator preference mode where the operator can preset maximum speeds or the like for various functions so that the screeding machine speeds are limited to the selected speeds, and/or a joystick swap function, and/or a remote auger and vibrator speed adjust function and/or a remote valve tuning function.
• a screeding machine of the present invention thus may include or incorporate any one or more of the above configurations or features or functions or controls while remaining within the spirit and scope of the present invention. Changes and modifications to the specifically described embodiments can be carried out without departing from the principles of the present invention, which is intended to be limited only by the scope of the appended claims as interpreted according to the principles of patent law.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Road Paving Machines (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=42396399

Family Applications (1)

Country Status (3)

Families Citing this family (23)

Family Cites Families (51)

• 2010
  • 2010-02-02 EP EP10736554A patent/EP2391772A2/de not_active Withdrawn
  • 2010-02-02 WO PCT/US2010/022800 patent/WO2010088640A2/en active Application Filing
  • 2010-02-02 US US12/698,247 patent/US20100196096A1/en not_active Abandoned

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events