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公开(公告)号：US20220326012A1
公开(公告)日：2022-10-13
申请号：US17723866
申请日：2022-04-19
申请人： Wirtgen GmbH
摘要： A civil engineering machine has a machine control unit configured to determine data which defines the position and/or orientation of a reference point on the civil engineering machine in relation to a reference system independent of the position and orientation of the civil engineering machine. A geometrical shape to be produced on the ground is preset in either a machine control unit or a field rover control unit. The field rover is used to determine a position of at least one identifiable point of the preset geometrical shape in the independent reference system. Curve data defining a desired curve in the independent reference system, corresponding to the preset shape, is determined at least partially on the basis of the position of the at least one identifiable point of the preset geometrical shape in the independent reference system.
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公开(公告)号：US20220290448A1
公开(公告)日：2022-09-15
申请号：US17691339
申请日：2022-03-10
摘要： A concrete trowel is disclosed and includes a frame, a drive assembly including a motor mounted on the frame and a drive hub configured to receive torque from the motor, a handle assembly extending from the frame for controlling the concrete trowel, a rotor including a plurality of blades, the rotor rotatably coupled to the drive assembly for rotating about a rotational axis, and a steering control system mounted on the handle assembly to selectively adjust an orientation of the drive hub relative to a work surface in a plurality of different directions to adjust a pressure applied by the blades against the work surface.
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公开(公告)号：US20220267967A1
公开(公告)日：2022-08-25
申请号：US17678706
申请日：2022-02-23
发明人： Peter A. Ligman
IPC分类号： E01C19/42
摘要： An apparatus for screeding concrete to produce a level finished surface includes a frame assembly having a front end and rear ends and a pair of spaced vertically oriented stabilization legs supporting a generally horizontal front member. An extendable boom assembly is provided having front and rear ends, and an exterior boom section pivotably secured to the frame assembly proximate said rear end. The extendable boom assembly is also adjustably mounted on said front member to allow generally lateral motion of the boom.
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4.发明授权公开(公告)号：US11306447B2
公开(公告)日：2022-04-19
申请号：US16832951
申请日：2020-03-27
发明人： Reece A. Berns
摘要： A method for determining a change in an angle of attack of a screed on a paving machine includes determining a first angle of attack of the screed, determining a second angle of attack of the screed based on data from at least one sensor located on the screed and at least one sensor located on a frame of the paving machine, and determining a change in the angle of attack based on the first angle of attack and the second angle of attack. The method also includes providing a notification of at least one of the first angle of attack, the second angle of attack, or the change in the angle of attack.
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公开(公告)号：US11261570B2
公开(公告)日：2022-03-01
申请号：US16973776
申请日：2020-04-10
申请人： JiangSu University
发明人： Lili Dong , Jun Yao , Zeyuan Miao , Xiaotie Niu , Lan Zou
摘要： An adaptive balancing mechanism of dual-head cement trowelling machine includes a water tank, a screw support base, an adjusting screw, a sensor and controller, a counterweight, a stepper motor, an underframe, a guide rail, a guide rail support plate, limit plates, and a transmission member. The controller collects the weight change information of the water in the water tank in real time according to the operation process. Adjust the position of the counterweight in real time by the stepper motor and the adjusting screw to make the two trowel heads in adaptive dynamic balance to the ground pressure.
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公开(公告)号：US11105048B2
公开(公告)日：2021-08-31
申请号：US16163313
申请日：2018-10-17
摘要： An asphalt paver machine includes a main screed and an extender screed. The extender screed is coupled and configured to move laterally relative to the main screed. The extender screed includes a first screed carriage movably coupled to the main screed by a first cylinder and a second cylinder diagonally arranged relative to one another, and a second screed carriage movably coupled to the first screed carriage by a third cylinder and a fourth cylinder diagonally arranged relative to one another.
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公开(公告)号：US20210262178A1
公开(公告)日：2021-08-26
申请号：US17179792
申请日：2021-02-19
申请人： JOSEPH VOEGELE AG
发明人： Achim EUL , Michael HEINDTEL
IPC分类号： E01C19/42 , B60Q1/24 , F21S41/147 , F21S41/32 , F21S41/20 , F21S41/153
摘要： A road finishing machine comprises a tractor and a screed hinged to the tractor to be towed behind the tractor. At the tractor, a main control platform of the road finishing machine is provided which offers space for an operator and comprises operational controls for controlling functions of the road finishing machine. The main control platform has a roof, wherein a lighting unit with a light source is provided at the roof. The lighting unit comprises a housing which accommodates the light source and has a reflector. The reflector is configured to reflect light emitted by the light source into a working area of the screed so that the working area of the screed is illuminated indirectly.
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8.发明授权公开(公告)号：US10760227B2
公开(公告)日：2020-09-01
申请号：US16254451
申请日：2019-01-22
申请人： Multiquip, Inc.
摘要： A support structure for a float pan for floating a concrete surface provides an interface between the float pan and a rotating machine. The support structure is characterized by a hub configured for concentric attachment to a rotor, and by trusses that extend radially from the hub, each providing a float pan contact surface and means for attachment to the float pan. Perimetric bracing links the trusses about the perimeter of the support structure. A machine similar to a walk-behind or ride-on trowel but without rotor blades, may incorporate the support structure and operate as a dedicated power flotation machine. Under weight of the machine, the contact surfaces of the trusses conform the float pan to a desired shape or radius of curvature for optimizing a flotation process.
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公开(公告)号：US10746546B2
公开(公告)日：2020-08-18
申请号：US16242861
申请日：2019-01-08
申请人： Wirtgen GmbH
摘要： A civil engineering machine has a machine control unit configured to determine data which defines the position and/or orientation of a reference point on the civil engineering machine in relation to a reference system independent of the position and orientation of the civil engineering machine. A geometrical shape to be produced on the ground is preset in either a machine control unit or a field rover control unit. The field rover is used to determine a position of at least one identifiable point of the preset geometrical shape in the independent reference system. Curve data defining a desired curve in the independent reference system, corresponding to the preset shape, is determined at least partially on the basis of the position of the at least one identifiable point of the preset geometrical shape in the independent reference system.
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10.发明申请公开(公告)号：US20200232169A1
公开(公告)日：2020-07-23
申请号：US16254451
申请日：2019-01-22
申请人： Multiquip, Inc.
摘要： A support structure for a float pan for floating a concrete surface provides an interface between the float pan and a rotating machine. The support structure is characterized by a hub configured for concentric attachment to a rotor, and by trusses that extend radially from the hub, each providing a float pan contact surface and means for attachment to the float pan. Perimetric bracing links the trusses about the perimeter of the support structure. A machine similar to a walk-behind or ride-on trowel but without rotor blades, may incorporate the support structure and operate as a dedicated power flotation machine. Under weight of the machine, the contact surfaces of the trusses conform the float pan to a desired shape or radius of curvature for optimizing a flotation process.
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