US20080169110A1 - Multi-Purpose Working Device - Google Patents

Multi-Purpose Working Device Download PDF

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Publication number
US20080169110A1
US20080169110A1 US12/028,013 US2801308A US2008169110A1 US 20080169110 A1 US20080169110 A1 US 20080169110A1 US 2801308 A US2801308 A US 2801308A US 2008169110 A1 US2008169110 A1 US 2008169110A1
Authority
US
United States
Prior art keywords
tool
working device
central part
ground
purpose working
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.)
Abandoned
Application number
US12/028,013
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English (en)
Inventor
Horst Schwab
Wolfgang Schwab
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HORST SCHWAB GmbH
Original Assignee
HORST SCHWAB GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HORST SCHWAB GmbH filed Critical HORST SCHWAB GmbH
Assigned to HORST SCHWAB GMBH reassignment HORST SCHWAB GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHWAB, HORST, SCHWAB, WOLFGANG
Publication of US20080169110A1 publication Critical patent/US20080169110A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/225—Control of steering, e.g. for hydraulic motors driving the vehicle tracks
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/7636—Graders with the scraper blade mounted under the tractor chassis
    • E02F3/764—Graders with the scraper blade mounted under the tractor chassis with the scraper blade being pivotable about a vertical axis
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/7636—Graders with the scraper blade mounted under the tractor chassis
    • E02F3/765—Graders with the scraper blade mounted under the tractor chassis with the scraper blade being pivotable about a horizontal axis disposed perpendicular to the blade

Definitions

  • the invention relates to a multi-purpose working device, in particular, for the production of flat surfaces with a rear frame, a front frame, a central part connecting the rear to the front frame, wherein movement means, preferably wheels, are fixed to the front and rear frames.
  • Such multi-purpose working devices are known in prior art.
  • a leveling machine having these features is known.
  • the rear frame and the tool holder of this leveling machine are connected via two telescopic connections of the central part to the front axle.
  • This leveling machine has a substantial drawback in that drawing in and out of the two telescopic connections has to correspond with respect to each other and therefore is technically very complex.
  • Due to the various movable parts this leveling machine moreover is very accident-sensitive.
  • the complicated mechanics moreover, requires a very large and heavy overall construction, which has a high weight and therefore represents a high surface load of the ground and is only very poorly maneuverable. Therefore, such a multi-purpose working device cannot be employed on sensitive ground or in narrow areas.
  • DE 2 155 193 B1 shows a leveling machine according to which the fixed front axle which is equipped with two wheels is connected by means of a fixed central frame to the two-axle rear frame.
  • a leveling tool is fixed to the central frame, the distance of which to the surface to be worked, lying there under can be kept constant by means of a spacer device. Due to its construction, also this leveling machine is very hard and poorly maneuverable.
  • DE 1931015 B shows an earth moving vehicle with a two-axle rear part and a two-axle front part.
  • DE 3418975 A1 describes a traction machine on the rear side of which a leveling or earth moving means, respectively, is arranged. Due to the thereby caused size of the means, the latter also is poorly maneuverable.
  • the multi-purpose working device mentioned above which has a tool holder connected via an adjustment means to the central part such that the tool holder is pivoting substantially perpendicular to the longitudinal axis and substantially parallel to the ground against the central part, whereby the rear and front frames have movement means, in particular wheels, and whereby the central part has at least one fixed part and one part movable thereto, such that the movable part is substantially moveable longitudinally against the fixed part.
  • the front frame has a front wheel and means for direction control, preferably a hydraulic control.
  • a front wheel which is rotatable about at least a total of 120 degrees, preferably about at least 160 degrees, very preferable at least 180 degrees, the turn radius of the multi-purpose working device can be minimized together with the moveable central part.
  • the front frame can have a preferably hydraulic drive for driving the front wheel fixed to the frame. Thereby, it is possible to rotate the front rear by 90 degrees out of the longitudinal axis and to thereby move the multi-purpose working device in a circle. Thereby, also smaller areas and narrow paths, for example walking trails, ca be worked with the multi-purpose working device according to the invention.
  • the attachment of the tool holder at the central part of the multi-purpose working device has the additional advantage that the tool holder describes the same path as the central part, and thereby reduces the space required for, for example, cornering, thereby increasing mobility.
  • This mobility is further increased, if the multi-purpose working device has a pivot between the rear frame and the central part by means of which the central part, preferably by means of hydraulic, is pivotable substantially parallel to the ground against the rear frame. Thereby, the radius additionally can be reduced during cornering.
  • the combination of driven front wheel, a central part adjustable in its length, and a pivot between the central part and the rear frame also enables to work places which are difficult to access, for example the corners of a soccer ground.
  • the compact construction with the drive of all wheels enabled by the multi-purpose working device according to the invention also allows a very light weight construction. Because the weight of the tools can be distributed according to this construction on the front and rear frames of the multi-purpose working device very well, the surface pressure on the ground to be worked is reduced. This is particularly advantageous, if the ground to be worked has a low loading capacity due to its structure, for example, when a lawn heating is existing or drainages which are embedded in the ground.
  • the tool holder preferably has an additional adjustment means.
  • This adjustment means substantially serve for adjusting the horizontal and vertical angle of the tool holder relative to the surface.
  • the adjustment means have hydraulic components; very preferably they are decoupled from each other such that the horizontal and vertical angles of the tool holder are adjustable independently of each other.
  • the tool holder has a displacement device, which substantially serves for the lateral extension of the tool.
  • the multi-purpose working device has one or several distance measurement devices, by means of which substantially the vertical distance of the tool connected to the tool holder can be determined relative to the surface.
  • the multi-purpose working device has a control means, which controls the distance between the tool and the ground, whereby the control means moves the tool connected to the tool holder by adjustment of the vertical distance of at least one side relative to the surface. A distance, which has been previously set between the tool and the surface, is reestablished with respect to the changing ground by the control means.
  • the central part of the multi-purpose working device has at least one fixed part, which is not moveable in the longitudinal direction with respect to the rear part, and a movable part, whereby the movable part substantially moves in longitudinal direction against the fixed part.
  • the front frame has means for receiving further members, preferably for additional weights, very preferred for additional soil working devices.
  • FIG. 1 is a multi-purpose working device according to the invention
  • FIG. 2 is a tool holder with attached tool.
  • FIG. 1 is an embodiment of the multi-purpose working device 1 according to the invention, having a front frame 10 , a rear frame 11 and a central part 20 connecting the rear to the front frame, comprising a movable part 21 and a fixed part 22 .
  • the front and rear frames have movement means 40 and 41 , respectively, which here are wheels. Also, other movement means, for example, caterpillars can be employed. This eventually depends on the concrete area of application.
  • the tool holder 90 is connected to the fixed central part 22 via an adjustment device, here an axis 70 .
  • a tool 30 here a leveling sign, is attached to the tool holder 90 .
  • the tool holder 90 is connected to the central part 20 via an axle 70 , it describes substantially the same path as the central part 20 .
  • the axle 70 serves for the purpose of modifying the horizontal angle, also the angle between tool holder 90 and the longitudinal axis of the central part 20 .
  • the tool 30 can be aligned angularly to the driving direction of the multi-purpose working device.
  • the tool holder 90 is rotated substantially by means of a hydraulic system or by means of another device suitable for rotating the adjustment device 70 .
  • the central part 20 has a fixed part 22 and a part 21 , which is movable relative thereto. It has been found to be advantageous to construct the central part 20 in a telescopic manner.
  • the movable part 21 thereby, runs within the fixed central part 22 .
  • the moveable central part 21 is drawn in and out preferably by means of a hydraulic system. It is also conceivable that the movable part 21 runs above or below the fixed part 22 , and is moved for example via a crank or a chain against the fixed part.
  • the drawing in and out of the movable part 21 causes an enlargement or a reduction of the wheelbase.
  • a reduced wheelbase increases the maneuverability of the multi-purpose working device whereas an increased wheelbase substantially provides higher stability and additional higher pressure of the tool 30 on the ground.
  • a substantial advantage of an increased wheelbase is the fact that thereby unevenness of the ground to be worked can be leveled in a better manner.
  • the movement means 40 and 41 are wheels. Also, caterpillars can be employed, which depends on the application area.
  • the front frame 10 has exactly one front wheel, which can also be formed as a double wheel, and a device for direction control of the front wheel. As device for direction control, a not illustrated hydraulic system is employed. Additionally, a drive is provided at the front frame 10 , to drive the front wheel. In the embodiment shown in FIG. 1 , a not illustrated oil hydraulic drive is concerned, which is operated by flexible oil pressure lines 15 .
  • the use of only one front wheel has two substantial advantages: on the one hand, the front wheel can be set in an angle of 90° transversally with respect to the axis, whereby the rotation of the multi-purpose working device around its own axis is possible, on the other hand, the mobility of multi-purpose working device is particularly highly increased by a short central part, because the required space of the front wheel maximally corresponds to the radius of the front wheel also during cornering, in contrast to the large and heavy-duty axis known from prior art.
  • a device 50 for receiving further members, preferably additional weight or tools, is provided on the front frame 10 .
  • additional weights By receiving additional weights, the pressure of the tool 30 on the ground is increased and the stability is increased. Additionally, the anti skid capability of the driven front wheel is increased.
  • a three points hydraulic 60 for receiving further apparatuses, for example of a rear stacker, a rotary harrow, a molding cutter or further tools is attached on the rear frame 11 .
  • the number of its application possibilities of the multi-purpose working device is substantially increased.
  • a power-take-off shaft for driving the soil working devices received by the three points hydraulic is provided.
  • FIG. 2 shows a detailed illustration of the tool holder 90 with attached leveling sign 30 as tool, shown in FIG. 1 .
  • the tool holder 90 has adjustment devices 100 , here, and two hydraulic arms.
  • On the tool holder 90 additionally one displacement device, not shown here, and two distance measurement devices 120 can be attached.
  • the distance measurement devices 120 here, can be both used for measuring the distance to the ground as well as for measuring the lateral distance.
  • ultra sonic means, laser means or further means suitable for measuring a distance are employed.
  • adjustment devices 100 are employed. By means of these adjustment devices 100 the tool 30 is tilted on one side downwards or upwards, whereby the vertical angle of the tool 90 to the ground is modified.
  • adjustment devices 100 There are shown two adjustment devices 100 , whereby one adjustment device is fixed on the left hand side and the other adjustment device is fixed on the right hand side to the tool 30 .
  • adjustment devices 100 appropriately hydraulic arms are used. For tilting the tool 30 , these then have to correspond to each other independently.
  • the adjustment devices 100 also serve for adjusting the height of the tool 30 .
  • simultaneous driving in and out of the adjustment devices 100 the tool 30 moves upwards or downwards, respectively.
  • the tool 30 itself moves thereby along a guiding rail along a fixture 115 , not illustrated here.
  • the tool holder 90 further comprises a not shown displacement device, by means of which the tool 30 substantially can be drawn out both leftwards and rightwards substantially laterally.
  • the application area of the multi-purpose working device is substantially increased, because specifically together with the adjustment of the vertical angle to the ground also the ground laterally of the multi-purpose working device, for example, an embankment or a sidewalk, can be worked.
  • the displacement device is also realized as a hydraulic system.
  • the displacement device preferably is operated independently of the adjustment devices 100 .
  • the two distance measurement devices 120 are connected to a control means.
  • a fixed preset distance can be kept constant also during changing ground relative to the ground with changing distance of the tool holder 90 to the ground, for example, at sloping surfaces, embankments or unevenness of the ground, with the aid of the control means.
  • the distance measurement device 120 also can be formed such that it can measure the horizontal distance of the tool holder 90 to a reference object, for example, a wall, and can keep it constant by means of the control means.
  • the multi-purpose working device has a pivot between the rear frame 11 and the fixed part 22 .
  • the fixed part 22 is connected to the rear frame 11 by means of the pivot such that the central part 20 is pivotable substantially parallel to the ground.
  • the middle part 20 is not connected to the rear part 11 rigidly, which even further increases the maneuverability of the multi-purpose working device.
  • the central part is pivoted for supporting the cornering by means of the hydraulic system to the right or to the left, whereby the pivot angle can have a fixed relation to the lock angle of the front wheel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Agricultural Machines (AREA)
  • Harvester Elements (AREA)
  • Road Paving Machines (AREA)
US12/028,013 2005-08-08 2008-02-08 Multi-Purpose Working Device Abandoned US20080169110A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005037389A DE102005037389B4 (de) 2005-08-08 2005-08-08 Vielzweckarbeitsgerät
DE102005037389.5 2005-08-08
PCT/EP2006/065164 WO2007017516A1 (de) 2005-08-08 2006-08-08 Vielzweckarbeitsgerät

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/065164 Continuation WO2007017516A1 (de) 2005-08-08 2006-08-08 Vielzweckarbeitsgerät

Publications (1)

Publication Number Publication Date
US20080169110A1 true US20080169110A1 (en) 2008-07-17

Family

ID=36952574

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/028,013 Abandoned US20080169110A1 (en) 2005-08-08 2008-02-08 Multi-Purpose Working Device

Country Status (5)

Country Link
US (1) US20080169110A1 (de)
EP (1) EP1915485B1 (de)
CA (1) CA2618020C (de)
DE (1) DE102005037389B4 (de)
WO (1) WO2007017516A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009121415A1 (en) * 2008-04-03 2009-10-08 Horst Schwab Gmbh Multi-purpose device for producing flat surfaces
FR2976155A1 (fr) * 2011-06-07 2012-12-14 Bouhours Et Cie Tracteur agricole a chassis relevable et reglable en longueur avec porte outillage avant

Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2130274A (en) * 1937-10-18 1938-09-13 John F Harrison Road working device
US2220361A (en) * 1938-09-09 1940-11-05 Edward E Westphal Sidehill steering attachment for tractors
US2239649A (en) * 1938-12-14 1941-04-22 Allis Chalmers Mfg Co Road working machine
US2967575A (en) * 1956-08-02 1961-01-10 Deere & Co Tractor-implement power control system
US3270829A (en) * 1964-08-04 1966-09-06 Earl A Christianson Articulated vehicle
US3327413A (en) * 1964-06-22 1967-06-27 Deere & Co Material grading implement
US3568778A (en) * 1969-01-23 1971-03-09 Cmi Corp Motor grader apparatus
US3618671A (en) * 1969-11-05 1971-11-09 Alfred Chantland Grader attachment for a tractor
US3672460A (en) * 1971-02-16 1972-06-27 Raygo Inc Control means for power steering servo
US3695374A (en) * 1970-08-07 1972-10-03 Ward T Commons Dirigible wheel vehicle
US3789929A (en) * 1972-03-29 1974-02-05 R Leidig Three wheel all wheel hydraulic drive tractor
US4103474A (en) * 1977-04-21 1978-08-01 Continental Belton Co. Three point hitch apparatus for supporting an implement underneath a tractor
US4148365A (en) * 1977-09-14 1979-04-10 Anderson Ernest L Earth working attachment for tractors
US4279312A (en) * 1979-03-29 1981-07-21 Pyle Donald L Dual tractor road grader with double arched center frame
US4364438A (en) * 1979-03-29 1982-12-21 Pyle Donald L Dual tractor road grader with double arched center frame
US4369855A (en) * 1980-07-15 1983-01-25 Veda, Inc. Fluid drive system
US4611683A (en) * 1981-07-23 1986-09-16 Hilmer Elwyn P Farm tractor
US4664404A (en) * 1986-01-23 1987-05-12 Deere & Company Tractor rear weight and hitch assembly
US4693331A (en) * 1986-04-23 1987-09-15 Hiniker Company Tractor boom
US5235511A (en) * 1988-06-09 1993-08-10 Spectra-Physics, Inc. Method for automatic depth control for earth moving and grading
US5343972A (en) * 1992-06-25 1994-09-06 Charles Balmer Belly mount tractor
US6293354B1 (en) * 2000-05-25 2001-09-25 Lyle C. Garratt Disc unit
US6851486B2 (en) * 2002-01-15 2005-02-08 Gerald Eugene Marshall Grading attachment for a loader

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT280804B (de) * 1968-07-12 1970-04-27 Frisch Geb Kg Eisenwerk Motorgrader
NL156203B (nl) * 1969-08-07 1978-03-15 Frisch Geb Kg Eisenwerk Egaliseermachine.
DE2155193C3 (de) * 1971-11-06 1980-10-30 B. & G. Vocke, 2960 Aurich Planiereinrichtung
DE3418975A1 (de) * 1984-05-22 1985-11-28 PÖMA-Maschinenbau Wolfgang Pötzsch, 3341 Groß Denkte Planier- und verdichtungsgeraet
DD237860A1 (de) * 1985-05-31 1986-07-30 Halle Baumaschinen Planiermaschine mit teleskopierbarem rahmen und werkzeugtraeger

Patent Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2130274A (en) * 1937-10-18 1938-09-13 John F Harrison Road working device
US2220361A (en) * 1938-09-09 1940-11-05 Edward E Westphal Sidehill steering attachment for tractors
US2239649A (en) * 1938-12-14 1941-04-22 Allis Chalmers Mfg Co Road working machine
US2967575A (en) * 1956-08-02 1961-01-10 Deere & Co Tractor-implement power control system
US3327413A (en) * 1964-06-22 1967-06-27 Deere & Co Material grading implement
US3270829A (en) * 1964-08-04 1966-09-06 Earl A Christianson Articulated vehicle
US3568778A (en) * 1969-01-23 1971-03-09 Cmi Corp Motor grader apparatus
US3618671A (en) * 1969-11-05 1971-11-09 Alfred Chantland Grader attachment for a tractor
US3695374A (en) * 1970-08-07 1972-10-03 Ward T Commons Dirigible wheel vehicle
US3672460A (en) * 1971-02-16 1972-06-27 Raygo Inc Control means for power steering servo
US3789929A (en) * 1972-03-29 1974-02-05 R Leidig Three wheel all wheel hydraulic drive tractor
US4103474A (en) * 1977-04-21 1978-08-01 Continental Belton Co. Three point hitch apparatus for supporting an implement underneath a tractor
US4148365A (en) * 1977-09-14 1979-04-10 Anderson Ernest L Earth working attachment for tractors
US4279312A (en) * 1979-03-29 1981-07-21 Pyle Donald L Dual tractor road grader with double arched center frame
US4364438A (en) * 1979-03-29 1982-12-21 Pyle Donald L Dual tractor road grader with double arched center frame
US4369855A (en) * 1980-07-15 1983-01-25 Veda, Inc. Fluid drive system
US4611683A (en) * 1981-07-23 1986-09-16 Hilmer Elwyn P Farm tractor
US4664404A (en) * 1986-01-23 1987-05-12 Deere & Company Tractor rear weight and hitch assembly
US4693331A (en) * 1986-04-23 1987-09-15 Hiniker Company Tractor boom
US5235511A (en) * 1988-06-09 1993-08-10 Spectra-Physics, Inc. Method for automatic depth control for earth moving and grading
US5343972A (en) * 1992-06-25 1994-09-06 Charles Balmer Belly mount tractor
US6293354B1 (en) * 2000-05-25 2001-09-25 Lyle C. Garratt Disc unit
US6851486B2 (en) * 2002-01-15 2005-02-08 Gerald Eugene Marshall Grading attachment for a loader

Also Published As

Publication number Publication date
DE102005037389A1 (de) 2007-02-15
CA2618020C (en) 2012-09-11
EP1915485B1 (de) 2013-07-03
WO2007017516A1 (de) 2007-02-15
EP1915485A1 (de) 2008-04-30
DE102005037389B4 (de) 2008-10-16
CA2618020A1 (en) 2007-02-15

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HORST SCHWAB GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHWAB, HORST;SCHWAB, WOLFGANG;REEL/FRAME:020486/0044

Effective date: 20080201

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION