EP0744500B1 - Lader mit einem Führungsgestänge zum parallelen Führen des Werkzeugs - Google Patents
Lader mit einem Führungsgestänge zum parallelen Führen des Werkzeugs Download PDFInfo
- Publication number
- EP0744500B1 EP0744500B1 EP96107712A EP96107712A EP0744500B1 EP 0744500 B1 EP0744500 B1 EP 0744500B1 EP 96107712 A EP96107712 A EP 96107712A EP 96107712 A EP96107712 A EP 96107712A EP 0744500 B1 EP0744500 B1 EP 0744500B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- implement
- arm
- connecting means
- loader
- positioning motor
- 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 - Lifetime
Links
Images
Classifications
-
- 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
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
- E02F3/3405—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism
- E02F3/3408—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism of the parallelogram-type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S414/00—Material or article handling
- Y10S414/13—Handlers utilizing parallel links
Definitions
- the invention relates to a loader with at least one arm and a tool attached to this swivel, which is parallel to be led.
- the BOMFORD B3515 Drive-InLoader brochure reveals one Front loader for attachment to a tractor, the one Loader arm and a swing arm connected to it Has tool that can be carried out in various ways can.
- the position of the tool is determined by a mechanical Controlled parallel guide linkage, the subscriber side to a Plate is connected, on which the tool can also be pivoted is attached. Extends between the plate and the tool there is a hydraulic cylinder for pivoting the tool.
- the Plate, the loader arm and the tool point common pivot bearing on.
- This front loader is disadvantageous in that the Tool swivel range is pretty small.
- a front loader is for moving Bale built up, which emerges from US-A-5,150,999. at This loader has two arms, a parallel linkage and a tool with a mandrel to pick up the bale over the essentially triangular plates connected together. On A hydraulic cylinder is also attached to the plates on the other hand engages the tool to make it incline to the tool Change soil.
- This loader is for the sole purpose of Bale transport can be used and the tool can still do it in one to pan smaller area.
- US-A-4,964,778 is a telehandler with only one provided only arm, at its free and the material holder serving end a pallet fork is provided, which means interconnected hydraulic servomotors over the entire Swivel range of the arm is guided parallel to the floor, although it is possible to combine the pallet fork in one to pivot the small area vertically.
- US-A-4,046,026 is a tilt linkage for a loader known, which has two pairs of handlebars, one of which one end on a tool and the other end on one Arm swivels. At the other end, the handlebars are articulated connected with each other.
- a trained as a hydraulic motor Actuator is at one end on the tool and at the other end one of the handlebar pairs pivotally attached. If the servomotor apart or moved together, he pivots both Handlebar and thus changes the position of the tool relative to the Poor.
- the actuator is designed and arranged so that the Piston side is pressurized when the tool is pivoted against gravity and on the piston rod side, when the tool is in the direction of gravity is pivoted.
- the object underlying the invention is seen in to propose a loader, the tools of which are guided in parallel and can be pivoted through a larger angular range.
- the guide linkage is used with the or Connection means (s) for both parallel guiding of the tool, as well as the basis or point of attack for the actuating movement of the tool from the horizontal.
- the arm can be a single arm like one Telescopic loader or backhoe or as two arms on one Loader arm of a front loader. Since all Articulation points on the connecting means can also be provided an existing loader can be retrofitted. Since not a common one Joint of the tool, the arm and the connecting means is present, the tool can also cover a much larger area swing than with the loader according to the brochure BOMFORD B3515 Drive-InLoader.
- Spreadable handlebars provided in pairs, which at one end on the Servomotor and at the other end on the tool or Attack connecting means represent a scissor system that at slim design provides a large travel range.
- the linkage of the servomotor in a central area between the points of attack on the plate (s) ensures that its position and thus direction of action in every position of the guide linkage remains essentially the same.
- connection means As a result of the forked connection of the guide linkage over a guide member on the connecting means takes place in the middle Force transmission necessary for freedom from tension in the respective Storage of the connection means ensures.
- connection means by means of consoles to the tool, or using a To make carriers and holders quickly exchangeable.
- the Attack points essentially form the corners of a square
- the connection means forming plate (s) as a parallel guide member as well as a bearing and point of attack of the handlebars for the swiveling movement of the patient Unload the tool.
- a loader 10 is of the type Front loader shown, which is attached to a tractor 12 and is only shown in outline.
- the loader 10 has right and left masts 14, of which only the right in the direction of travel can be seen, and the side of the frame of the tractor 12 arranged and on this in a known, not shown manner are attached.
- a swing arm of the loader 10 contains two parallel to each other and one in the transverse direction Distance from each other arms 16 which are attached to the are opposite sides of the tractor 12 and whose rear ends via corresponding bolts 18 below the upper ends of the masts 14 can be pivoted thereon are attached. Between each mast 14 and the associated one Arm 16 is connected to a hydraulic lifting cylinder 20.
- a pair can also have a transverse spacing from one another interconnected holder 25 (see FIG. 2) of a carrier 26 can be used for tools 24 or equipment.
- the pair of brackets 22 and 25 respectively to the front ends of the pair of arms 16 of the loader 10 in a manner connected, which is explained in more detail below.
- a linkage assembly is provided which a guide linkage 27 and has a tilt linkage 28.
- the guide linkage 27 includes a rear one Guide link 30, the rear end portion by means of a Bolt 32 pivotable to the upper portion of the mast 14, and the front end area thereof by means of a bolt 34 rear end portion of a lever-like plate assembly 36 is connected, a pair of identical and one Cross-spaced triangular plates contains.
- a bottom section or lower section of the The plate assembly 36 is attached to one by means of a bolt 38 Bow section of the respective arm 16 of the loader 10 pivotable connected.
- a front corner area of the panel assembly 36 is attached to a rear end of a bolt 40 front guide member 42 connected.
- this guide member 42 a contains fork-shaped front end portion, that of right or left strips 44 and 46 is formed, the opposite sides of a parallelogram Plate assembly are provided, the connecting means 48th forms.
- the connection means 48 is composed of a pair identical right-hand one with a transverse distance and left plates 50 and 52 together, the front End area of the right bar 44 by means of a bolt 54 an upper middle corner area of plate 50 and the front End region of the left bar 46 by means of a bolt 56 a corresponding upper middle corner area of the left Plate 52 is connected.
- the plates 50 and 52 encompass the front end portion of the respective arm 16 and are on this connected by means of a bolt 58 which extends through the Plates 50, 52 at corresponding lower middle corner areas extends.
- each connection means 48 The front end portions of the spaced plates 50 and 52 of each connection means 48 are arranged such that they one of the associated brackets 22 or the holder 25 of the carrier 26 embrace, their respective front end area by means of a pin 60 pivotable to a lower portion of the Console 22 or the holder 25 is connected.
- connection means 48 serves as a connection between the Guide linkage 27 and the tilt linkage 28.
- each tilt linkage contains 28 right and left rear Handlebars 64 and 66 and right and left front links 68 and 70.
- the rear pair of links 64 and 66 has rear End areas that are within the relevant rear Corner areas of the parallelogram-shaped plates 50 and 52 are located and connected to this with bolts 72, wherein only one bolt 72 connecting plate 52 to handlebar 66 is shown.
- the front pair of handlebars 68 and 70 is with its front corner or end areas to the neighboring ones Brackets 22 or bracket 25 by means of a bolt 74 connected.
- the actuator 80 can both a hydraulic or pneumatic piston-cylinder unit be an electric motor as well.
- each holder 25 is designed that he quickly attached to a tool 24 or equipment can be connected.
- Rod 84 between and through upper regions of the holder 25, each latter including an angled portion 86 attached to the lower front corner region of the holder 25 is welded, and has an upright leg that has a lower front Contact surface forms. The upright leg is in the middle provided recess.
- On the back of the tool 24 a pair of hooks 88 opening downwards are provided, which cooperate with the rod 84, the holder 25 connects with each other, and the opposite sides each holder 25, the rod 84 fit snugly.
- a tapered backward one extending bolt 90 is provided, which is in the with the Recess leg of the angle part 86 is located.
- the tool 24 can be raised by extending the lifting cylinders 20.
- the guide linkage 27 acts during such a lifting process such that it maintains the position of the tool 24 what as a result of hinge points 18, 32, 34 and 38, the one form the first parallelogram, and because of the articulation points 38, 40, 56 and 58, which describe a second parallelogram. If the setting of the parallelogram-shaped connecting means 48 remains constant over the entire stroke range of the arms 16 can be seen that the tool 24 in any position of the arms 16 within the stroke range over its entire range can move.
- a back swing i.e. H.
- the actuators 80 are in one fully extended position and the tool 24 around one An angle of 43 degrees to the horizontal in one completely swung back position shown.
- the Tool 24 can so far in any position of the arms 16 be pivoted back.
- the Tool 24 is shown in FIG. 1 with solid lines raised arms 16 in a fully tilted position shown, the angle between the horizontal and the lower reference line of the tool 24 is 90 degrees. This Position can be reached in any position of the arms 16, which is high enough that the tool 24 has its connection means 48 can pivot down without the floor or one touch the underlying obstacle.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Manipulator (AREA)
Description
- Fig. 1
- einen Ackerschlepper mit einem erfindungsgemäßen Lader in schematischer Darstellung und Seitenansicht und
- Fig. 2
- einen Ausschnitt des Laders in perspektivischer Ansicht.
Claims (9)
- Lader (10) mit:a) wenigstens einem Arm (16),b) einem Werkzeug (24), das mittelbar oder unmittelbar an dem Arm (16) schwenkbar aufgenommen ist,c) wenigstens einem Stellmotor (80),d) einem Führungsgestänge (27) zum parallelen Führen des Werkzeugs (24) während einer Schwenkbewegung des Arms (16),e) wenigstens einem Anschlußmittel (48) zwischen dem Werkzeug (24) und dem Arm (16), an das der Arm (16), das Werkzeug (24), der Stellmotor (80) und das Führungsgestänge (27) jeweils schwenkbar angeschlossen sind, undf) spreizbaren Lenkern (64, 66, 68, 70), die einenends mit dem Stellmotor (80) und anderenends mit dem Werkzeug (24) bzw. den Anschlußmitteln (48) verbunden sind.
- Lader nach Anspruch 1, dadurch gekennzeichnet, daß das Anschlußmittel (48) aus wenigstens einer Platte (50, 52) besteht, deren Verbindung mit dem Werkzeug (24), dem Arm (16), dem Führungsgestänge (27) und einem der Lenker (64, 66) an Stellen erfolgt, die im wesentlichen die Eckbereiche eines Quadrats oder Trapezes bilden.
- Lader nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Anschlußmittel (48) von zwei parallel zueinander verlaufenden und im wesentlichen identischen Platten (50, 52) gebildet wird, die einen Abstand zwischen sich belassen und in diesem Abstand einen Endbereich des Arms (16) aufnehmen.
- Lader nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß die spreizbaren Lenker (64, 66, 68, 70) jeweils aus zwei vorzugsweise identischen Lenkern bestehen, die einen Abstand zueinander aufweisen und einenends beiderseits des Stellmotors (80) an diesem angreifen.
- Lader nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß der Stellmotor (80) mit Zapfen (76) an einem Gehäuse versehen ist, an denen die Lenker (64, 66, 68, 70) schwenkbar angreifen und daß ein Kolben des Stellmotors (80) schwenkbar mittels eines Bolzens (82) in den Platten (50, 52) im Mittenbereich zwischen den übrigen Anschlußstellen des Anschlußmittels (48) gehalten ist.
- Lader nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß das Führungsgestänge (27) ein Führungsglied (42) enthält, das an dem dem Anschlußmittel (48) zugelegenen Endbereich zwei parallel zueinander verlaufende Leisten (44, 46) aufweist, die die Platten (50, 52) gabelförmig zwischen sich aufnehmen.
- Lader nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Anschlußmittel (48) direkt mit Konsolen (22) des Werkzeugs (24) oder über einen Träger (26) mit Haltern (25) mit dem Werkzeug (24) verbunden sind.
- Lader nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß der Stellmotor (80) zum Beladen des Werkzeugs (24) ausgefahren und das Werkzeug (24) um eine getrennt von der Anlenkstelle des Stellmotors (80) an dem Anschlußmittel (48) liegende Schwenkachse geschwenkt wird.
- Lader nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß das Führungsgestänge (27) in einem oberen Mittenbereich, der Arm (16) in einem unteren Mittenbereich, ein rückwärtiger Lenker (66) in einem rückwärtigen Bereich und das Werkzeug (24) in einem vorderen Bereich der Platte(n) (50, 52) jeweils schwenkbar angreift, wobei die Angriffsstellen im wesentlichen die Ecken eines Vierecks bilden.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/445,807 US5533856A (en) | 1995-05-22 | 1995-05-22 | Combined loaded self-leveling and implement tilt linkages for effecting true level and enhanced roll back and dump characteristics throughout lift range of loader |
US445807 | 1995-05-22 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0744500A2 EP0744500A2 (de) | 1996-11-27 |
EP0744500A3 EP0744500A3 (de) | 1997-07-23 |
EP0744500B1 true EP0744500B1 (de) | 2002-01-02 |
Family
ID=23770274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96107712A Expired - Lifetime EP0744500B1 (de) | 1995-05-22 | 1996-05-15 | Lader mit einem Führungsgestänge zum parallelen Führen des Werkzeugs |
Country Status (4)
Country | Link |
---|---|
US (1) | US5533856A (de) |
EP (1) | EP0744500B1 (de) |
CA (1) | CA2173396C (de) |
DE (1) | DE59608528D1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5678979A (en) * | 1995-08-01 | 1997-10-21 | Kovacs; Geza | Tilt linkage system for load elevating vehicles |
GB2340816B (en) * | 1998-08-25 | 2002-10-09 | Agco Gmbh & Co | Adjustable arm length for front-end loader |
US6830112B2 (en) | 2001-10-26 | 2004-12-14 | Mtd Products Inc | Front hitch system |
SE528914C2 (sv) * | 2004-09-29 | 2007-03-13 | Aaloe Ab | Lastare innefattande två parallellt anordnade armkonstruktioner som i sin tur innefattar långsträckta armpartier och parallellstag |
SE531215C2 (sv) * | 2004-09-29 | 2009-01-20 | Aaloe Ab | Lastare innefattande två armdelar försett med ett utrymme i vilket slangar/ledningar är dragna |
US20110150616A1 (en) * | 2009-12-17 | 2011-06-23 | Caterpillar Inc | Linkage For An Earth-moving Machine |
US10544561B2 (en) | 2017-12-04 | 2020-01-28 | C.A. Hull Co., Inc. | Collector assembly |
WO2020047465A1 (en) * | 2018-08-31 | 2020-03-05 | Clark Equipment Company | Lift arm leveling system |
EP3918137A1 (de) * | 2019-01-30 | 2021-12-08 | Clark Equipment Company | Mechanische selbstnivellierende hubarmstruktur für eine kraftmaschine, insbesondere einen kleinlader |
CN117425758A (zh) * | 2021-05-21 | 2024-01-19 | 斗山山猫北美公司 | 用于动力机器的自调平提升臂组件 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2978124A (en) * | 1957-10-11 | 1961-04-04 | Gen Motors Corp | Cradle loader |
US3061117A (en) * | 1958-12-11 | 1962-10-30 | Marvin F Kruse | Weight gauge for hydraulic loader |
USRE29197E (en) * | 1959-02-26 | 1977-05-03 | Matbro Limited | Shovel loaders |
US3080076A (en) * | 1959-10-21 | 1963-03-05 | Insley Mfg Corp | Loading machine |
US3327880A (en) * | 1965-08-09 | 1967-06-27 | Baldwin Lima Hamilton Corp | Front end loader |
US3767075A (en) * | 1971-11-22 | 1973-10-23 | Gehl Co | Bucket loader |
SE387679B (sv) * | 1975-01-08 | 1976-09-13 | Svenska Hymas Ab | Lenk- och rorelsesystem serskilt for svengning av redskap sasom lastskopor till grevmaskiner och liknande |
US4674944A (en) * | 1985-12-27 | 1987-06-23 | Kidde, Inc. | Forklift variable reach mechanism |
US4964778A (en) * | 1989-07-27 | 1990-10-23 | Kidde Industries, Inc. | Forklift truck having a telescopic auxiliary boom articulated to a telescopic main boom |
US5238357A (en) * | 1989-11-22 | 1993-08-24 | Intermodal Technologies, Inc. | Bulk materials transportation system |
US5135347A (en) * | 1990-03-30 | 1992-08-04 | Kaczmarczyk Edward T | Loader mounting |
US5150999A (en) * | 1990-10-09 | 1992-09-29 | Dugan Joe W | Bale lifter and mover |
US5387076A (en) * | 1993-08-23 | 1995-02-07 | Deere & Company | Structure for attaching a loader to a tractor |
-
1995
- 1995-05-22 US US08/445,807 patent/US5533856A/en not_active Expired - Lifetime
-
1996
- 1996-04-03 CA CA002173396A patent/CA2173396C/en not_active Expired - Fee Related
- 1996-05-15 DE DE59608528T patent/DE59608528D1/de not_active Expired - Lifetime
- 1996-05-15 EP EP96107712A patent/EP0744500B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0744500A3 (de) | 1997-07-23 |
CA2173396A1 (en) | 1996-11-23 |
CA2173396C (en) | 1999-07-06 |
DE59608528D1 (de) | 2002-02-07 |
EP0744500A2 (de) | 1996-11-27 |
US5533856A (en) | 1996-07-09 |
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