CA2618020C - Multi-purpose working device - Google Patents
Multi-purpose working device Download PDFInfo
- Publication number
- CA2618020C CA2618020C CA2618020A CA2618020A CA2618020C CA 2618020 C CA2618020 C CA 2618020C CA 2618020 A CA2618020 A CA 2618020A CA 2618020 A CA2618020 A CA 2618020A CA 2618020 C CA2618020 C CA 2618020C
- Authority
- CA
- Canada
- 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.)
- Expired - Fee Related
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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
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- 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
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- 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
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- 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)
- Road Paving Machines (AREA)
- Harvester Elements (AREA)
Abstract
The invention relates to a multi-purpose working device, in particular, for producing flat surfaces. Said working device comprises a rear frame, a front frame, a central part which connects the rear frame to the front frame, and a tool-maintaining device which is connected to the central part by means of an adjusting system, such that said tool-maintaining device can pivot in an essentially perpendicular manner in relation to the longitudinal axis and essentially parallel to the base counter to the central part.The rear frame and the front frame comprise wheels. The central part comprises at least one stationary part and another part which can be displaced counter thereto, such that the displaceable part can be displaced, essentially, in the longitudinal direction in relation to the stationary part. The front frame comprises a front wheel which can rotate about an angle range of at least 120 degrees, preferably at least 180 degrees, a hydraulic control which acts upon the front wheel for directional control, and a hydraulic drive which is used to drive the front wheel.
Description
Multi-Purpose Working Device The invention relates to a multi-purpose working device, in particular, for the produc-tion 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. For example, from DD
237 860 Al 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 compli-cated 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 de-vice cannot be employed on sensitive ground or in narrow areas.
DE 2 155 193 B 1 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.
\1 l DE 1931015 B shows an earth moving vehicle with a two-axle rear part and a two-axle front part. By means of a very complex hydraulic system an attempt is made to guarantee that both the two-axle rear part and the two-axle front part have a uniform pressure on the ground to be worked during maneuvering, to thereby keep the surface load acceptable in spite of the high weight. The size which is caused by the construc-tion, however, leads to a bad maneuverability of the vehicle.
DE 3418975 Al 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 1 o means, the latter also is poorly maneuverable.
It is an object of the present invention to avoid the drawbacks described above and to provide a multi-purpose working device, which specifically has a low surface load with high maneuverability at the same time.
This object is solved according to the invention by 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 hy-draulic control. By means of using 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.
Such multi-purpose working devices are known in prior art. For example, from DD
237 860 Al 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 compli-cated 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 de-vice cannot be employed on sensitive ground or in narrow areas.
DE 2 155 193 B 1 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.
\1 l DE 1931015 B shows an earth moving vehicle with a two-axle rear part and a two-axle front part. By means of a very complex hydraulic system an attempt is made to guarantee that both the two-axle rear part and the two-axle front part have a uniform pressure on the ground to be worked during maneuvering, to thereby keep the surface load acceptable in spite of the high weight. The size which is caused by the construc-tion, however, leads to a bad maneuverability of the vehicle.
DE 3418975 Al 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 1 o means, the latter also is poorly maneuverable.
It is an object of the present invention to avoid the drawbacks described above and to provide a multi-purpose working device, which specifically has a low surface load with high maneuverability at the same time.
This object is solved according to the invention by 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 hy-draulic control. By means of using 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 cir-cle. 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 construc-tion. 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 sur-face pressure on the ground to be worked is reduced. This is particularly advanta-geous, 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 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 construc-tion. 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 sur-face pressure on the ground to be worked is reduced. This is particularly advanta-geous, 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. Preferably, the adjustment means have hydraulic com-ponents; 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.
Moreover, it has been found to be advantageous, if the tool holder has a displacement device, which substantially serves for the lateral extension of the tool.
Preferably, the multi-purpose working device has one or several distance measure-ment devices, by means of which substantially the vertical distance of the tool con-nected to the tool holder can be determined relative to the surface.
Especially prefera-bly the multi-purpose working device has a control means, which controls the dis-tance 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.
Moreover, it has been found to be advantageous, if the central part of the multi-purpose working device has at least one fixed part, which is not moveable in the lon-gitudinal direction with respect to the rear part, and a movable part, whereby the movable part substantially moves in longitudinal direction against the fixed part. By moving the movable part, the modification of the wheel base is achieved.
It is advantageous to construct the central part telescopically and to move the mov-able part preferably by means of hydraulics against the fixed part.
Moreover, it has been found to be advantageous, if the tool holder has a displacement device, which substantially serves for the lateral extension of the tool.
Preferably, the multi-purpose working device has one or several distance measure-ment devices, by means of which substantially the vertical distance of the tool con-nected to the tool holder can be determined relative to the surface.
Especially prefera-bly the multi-purpose working device has a control means, which controls the dis-tance 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.
Moreover, it has been found to be advantageous, if the central part of the multi-purpose working device has at least one fixed part, which is not moveable in the lon-gitudinal direction with respect to the rear part, and a movable part, whereby the movable part substantially moves in longitudinal direction against the fixed part. By moving the movable part, the modification of the wheel base is achieved.
It is advantageous to construct the central part telescopically and to move the mov-able part preferably by means of hydraulics against the fixed part.
In a preferred embodiment, the front frame has means for receiving further members, preferably for additional weights, very preferred for additional soil working devices.
It has been found to be advantageous to provide three point hydraulics on the rear frame, preferably for receiving additional or other devices or tools, very preferred further soil working devices.
For further explanation of the invention, in the following a specific embodiment is illustrated. It is shown:
Fig. 1: a multi-purpose working device according to the invention, Fig. 2: a tool holder with attached tool.
Fig. 1 is an embodiment of the multi-purpose working device 1 according to the in-vention, 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.
Because the tool holder 90 is connected to the central part 20 via an axis 70, it de-scribes substantially the same path as the central part 20. The axis 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. Thereby, the tool 30 can be aligned angu-larly to the driving direction of the multi-purpose working device.
Preferably, the tool holder 90 is rotated substantially by means of a hydraulic system or by means of an-other 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 tele-scopic 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 stabil-ity and additional higher pressure of the tool 30 on the ground. A substantial advan-tage 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, here, are wheels. Also, caterpillars can be em-ployed, 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 pos-sible, 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 con-trast 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. 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. Thereby, the number of its application possibilities of the multi-purpose working device is substantially increased. Also, 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. As distance measurement device 120, ultra sonic means, laser means or further means suitable for measuring a distance are employed.
To modify the vertical angle of the tool 30 to the ground, also 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.
It has been found to be advantageous to provide three point hydraulics on the rear frame, preferably for receiving additional or other devices or tools, very preferred further soil working devices.
For further explanation of the invention, in the following a specific embodiment is illustrated. It is shown:
Fig. 1: a multi-purpose working device according to the invention, Fig. 2: a tool holder with attached tool.
Fig. 1 is an embodiment of the multi-purpose working device 1 according to the in-vention, 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.
Because the tool holder 90 is connected to the central part 20 via an axis 70, it de-scribes substantially the same path as the central part 20. The axis 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. Thereby, the tool 30 can be aligned angu-larly to the driving direction of the multi-purpose working device.
Preferably, the tool holder 90 is rotated substantially by means of a hydraulic system or by means of an-other 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 tele-scopic 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 stabil-ity and additional higher pressure of the tool 30 on the ground. A substantial advan-tage 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, here, are wheels. Also, caterpillars can be em-ployed, 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 pos-sible, 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 con-trast 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. 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. Thereby, the number of its application possibilities of the multi-purpose working device is substantially increased. Also, 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. As distance measurement device 120, ultra sonic means, laser means or further means suitable for measuring a distance are employed.
To modify the vertical angle of the tool 30 to the ground, also 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.
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. As 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. By simulta-neous 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 sub-stantially laterally. Thereby, 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. Preferably, the displacement device is also realized as a hydraulic system. However, the use of, for example, gear wheels is also possible. The displacement device preferably is operated independently of the adjustment devices 100.
In a preferred embodiment, the two distance measurement devices 120 are connected to a control means. Thus, 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 con-trol means.
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. By simulta-neous 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 sub-stantially laterally. Thereby, 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. Preferably, the displacement device is also realized as a hydraulic system. However, the use of, for example, gear wheels is also possible. The displacement device preferably is operated independently of the adjustment devices 100.
In a preferred embodiment, the two distance measurement devices 120 are connected to a control means. Thus, 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 con-trol means.
In a not illustrated embodiment, the multi-purpose working device has a pivot be-tween 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 substan-tially parallel to the ground. By employing such a pivot, the middle part 20 is not connected to the rear part 11 rigidly, which even further increases the maneuverabil-ity of the multi-purpose working device. Preferably, 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.
Claims (9)
- Claims Multi-purpose working device for producing flat surfaces, having a rear frame, a front frame, a central part connecting the rear to the front frame, and a tool holder connected to the central part via adjustment means, such that the tool holder substantially is pivotable perpendicular to the longitudinal axis and substantially parallel to the ground against the central part, whereby the rear and the front frame have wheels, and whereby the central part has at least a fixed and a part movable thereto, such that the movable part is moveable sub-stantially longitudinally against the fixed part, the front frame further having:
- a front wheel, - means for direction control, namely hydraulic control acting on the front wheel for rotating the front wheel, and - a hydraulic drive for driving the front wheel, the rear frame further having:
- a three points hydraulic system for receiving further apparatuses or further tools, attached on the rear frame, and - a power-take-off shaft for driving soil working devices received by the three points hydraulic system. - 2. Multi-purpose working device according to claim 1, wherein the working de-vice has a pivot between the rear frame and the central part by means of which the central part is pivotable, by a hydraulic system, substantially parallel to the ground against the rear frame.
- 3. Multi-purpose working device according to claim 1 or 2, wherein the adjust-ment means are for adjusting the horizontal and the vertical angles of a tool connected to the tool holder relative to the ground.
- 4. Multi-purpose working device according to claim 3, wherein the adjustment means are adjustable decoupled with respect to each other and separate from each other.
- 5. Multi-purpose working device according to claim 3, wherein the adjustment means have hydraulic components.
- 6. Multi-purpose working device according to any one of claims 1 to 5, wherein the tool holder has a displacement device substantially for lateral extension of the tool.
- 7. Multi-purpose working device according to claim 6, wherein the movable and the fixed part of the central part are substantially movable against each other telescopically by a hydraulic system.
- 8. Multi-purpose working device according to any one of claims 1 to 7, wherein the front frame has means for receiving further members, of additional weights or soil working apparatuses.
- 9. Multi-purpose working device according to any one of claims 3 to 6, wherein the working device has at least one distance measurement device by means of which substantially the vertical distance of the tool connected to the tool hold-er can be determined relative to the ground, as well as that it has a control means, which is intended for the control of the distance between the tool and the ground, whereby the control means moves the tool connected to the tool holder by adjusting the vertical distance of at least one side of the tool relative to the ground such that a previously set vertical distance between the tool and the ground is kept substantially constant during changing ground by means of the control means.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005037389.5 | 2005-08-08 | ||
| DE102005037389A DE102005037389B4 (en) | 2005-08-08 | 2005-08-08 | Multi-purpose working device |
| PCT/EP2006/065164 WO2007017516A1 (en) | 2005-08-08 | 2006-08-08 | Multi-purpose working device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2618020A1 CA2618020A1 (en) | 2007-02-15 |
| CA2618020C true CA2618020C (en) | 2012-09-11 |
Family
ID=36952574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2618020A Expired - Fee Related CA2618020C (en) | 2005-08-08 | 2006-08-08 | Multi-purpose working device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20080169110A1 (en) |
| EP (1) | EP1915485B1 (en) |
| CA (1) | CA2618020C (en) |
| DE (1) | DE102005037389B4 (en) |
| WO (1) | WO2007017516A1 (en) |
Families Citing this family (2)
| 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 (en) * | 2011-06-07 | 2012-12-14 | Bouhours Et Cie | Farm tractor, has frame part located in front of driver's post, and sliding beam set with respect to central beam, where front portion of sliding beam is hinged and articulated around axis and bears front wheels and tool holder |
Family Cites Families (28)
| 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 |
| AT280804B (en) * | 1968-07-12 | 1970-04-27 | Frisch Geb Kg Eisenwerk | Motor grader |
| US3568778A (en) * | 1969-01-23 | 1971-03-09 | Cmi Corp | Motor grader apparatus |
| NL156203B (en) * | 1969-08-07 | 1978-03-15 | Frisch Geb Kg Eisenwerk | EQUALIZING MACHINE. |
| 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 |
| DE2155193C3 (en) * | 1971-11-06 | 1980-10-30 | B. & G. Vocke, 2960 Aurich | Leveling device |
| 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 |
| DE3418975A1 (en) * | 1984-05-22 | 1985-11-28 | PÖMA-Maschinenbau Wolfgang Pötzsch, 3341 Groß Denkte | Levelling and compacting implement |
| DD237860A1 (en) * | 1985-05-31 | 1986-07-30 | Halle Baumaschinen | PLANNING MACHINE WITH TELESCOPIC FRAME AND TOOL CARRIER |
| 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 |
-
2005
- 2005-08-08 DE DE102005037389A patent/DE102005037389B4/en not_active Expired - Fee Related
-
2006
- 2006-08-08 EP EP06792741.8A patent/EP1915485B1/en not_active Not-in-force
- 2006-08-08 WO PCT/EP2006/065164 patent/WO2007017516A1/en active Application Filing
- 2006-08-08 CA CA2618020A patent/CA2618020C/en not_active Expired - Fee Related
-
2008
- 2008-02-08 US US12/028,013 patent/US20080169110A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP1915485A1 (en) | 2008-04-30 |
| WO2007017516A1 (en) | 2007-02-15 |
| US20080169110A1 (en) | 2008-07-17 |
| EP1915485B1 (en) | 2013-07-03 |
| DE102005037389A1 (en) | 2007-02-15 |
| CA2618020A1 (en) | 2007-02-15 |
| DE102005037389B4 (en) | 2008-10-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20220301 |
|
| MKLA | Lapsed |
Effective date: 20200831 |