EP0569026B1 - Dispositif d'attache rapide - Google Patents
Dispositif d'attache rapide Download PDFInfo
- Publication number
- EP0569026B1 EP0569026B1 EP93107458A EP93107458A EP0569026B1 EP 0569026 B1 EP0569026 B1 EP 0569026B1 EP 93107458 A EP93107458 A EP 93107458A EP 93107458 A EP93107458 A EP 93107458A EP 0569026 B1 EP0569026 B1 EP 0569026B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupling members
- coupling
- locking
- locking plate
- constructed
- 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
- 238000010168 coupling process Methods 0.000 title claims abstract description 76
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 73
- 230000008878 coupling Effects 0.000 title claims abstract description 72
- 210000000078 claw Anatomy 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims 2
- 238000003780 insertion Methods 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 210000003127 knee Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3613—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with means for absorbing any play therebetween
-
- 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
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3627—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a longitudinal locking element
-
- 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
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/364—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using wedges
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/60—Biased catch or latch
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/60—Biased catch or latch
- Y10T403/602—Biased catch or latch by separate spring
Definitions
- the invention relates to a quick-change device for earthmoving vehicles for replacing work tools, which are releasably connected to the boom by means of an adapter which can be pivoted about a horizontal axis on the boom of the earthmoving machine and which has coupling elements designed as fixed claws and mounted as displaceable locking bolts, to which corresponding coupling elements are attached Appliances are assigned, of which the one coupling member has an opening for the entry of the sliding coupling members locking plate and the other coupling member forms a coupling axis at least partially encompassed by the claws, the bracing between the adapter and the implement taking place via the abutment surfaces of the coupling members.
- EP-A 0 273 828 shows such a fixed and displaceable coupling member quick change device. Since space is required for pivoting and pivoting the adapter into the implement relative to the locking plate, this is correspondingly far away from the coupling axis to be gripped by the claws, so that only the claws with the coupling axis and the bolts with the openings in the locking plate are clamped when coupling. As a result of this design of the coupling members, only a uniaxial bracing between the implement and the adapter on the boom takes place via the abutment surfaces of the coupling members. However, such a connection is not sufficiently rigid for heavy earthmoving operations. In addition, due to the essentially linear contact between the coupling surfaces during use of the earth moving vehicle, high relative surface loads occur on the coupling members.
- the coupling members fixed to the housing have a coupling axis on the implement and these partially encompassing receiving claws on the extension arm
- the displaceably mounted coupling element being a spring-loaded wedge which interacts with the fixed coupling element arranged on the implement in the form of a hook
- the wedge can be locked outside the active position by a locking device which is triggered during the coupling process between the boom and the implement, so that for the purpose of locking the wedge is pushed under the hook under the action of the spring; see AT-B 389 906.
- displaceable coupling members as locking bolts which can be inserted into associated bores in a support plate of the implement via a lever mechanism; see DE-B 1 784 323.
- a device for fastening a spoon to the boom of an excavator which consists of a gripping device on the boom and a catching device on the bucket.
- Via a hydraulically driven wedge arranged on the gripping device which, in the locked state, grips between the surfaces of two lugs on the catching device and the bottom surface of the gripping device, which enclose an acute angle with one another clamps the gripping device, which rests against a bolt of the safety device, via a wall formed as a ring segment.
- these quick-change devices also have in common the complex training and the susceptibility to malfunction, taking into account the rough use in earthmoving work. Also, with these quick-change devices, the goal of carrying out a change of the work equipment by the driver of the earth-moving machine alone without additional auxiliary personnel cannot be achieved.
- the object of the invention is to further develop it in such a way that reliable use of less and also taking into account the unavoidable wear over long operating times of components reliably locking the implement and boom of an earth moving machine alone from the driver.
- the one abutment surface of the coupling members of the adapter is designed as a cylindrical jacket-shaped abutment surface delimited on both sides by the claws for the purpose of support on the outer surface of the coupling axis of the implement, while the other abutment surface is flat and forms an imaginary plane connecting both abutment surfaces is arranged inclined that the locking plate has an abutment surface of the adapter facing and corresponding with this and in the locked state fully lying abutment surface, and that the abutment surfaces with the surfaces of the sliding coupling members and the openings corresponding to them in the locking plate a sliding and tensioning mutually facing abutment surfaces of the adapter and the implement form a wedge gear.
- the coupling surfaces of the displaceably mounted coupling members of the adapter and the coupling members of the implement are designed and assigned to one another in such a way that they form a wedge gear that clamps the adapter housing and the adapter plate together.
- the coupling surfaces of the displaceable coupling members and the coupling surfaces of the associated coupling members of the locking plate are designed as conical outer surfaces which correspond to one another over a circumferential angle of approximately 180 °, the circumferential partial surfaces of the coupling members assigned to the locking plate being complementary to the circumferential angle being 360 ° Include a predetermined bearing clearance circumferential surface areas of the sliding coupling members.
- the inventive design of the components of the quick-change device used for locking has the advantage that during the locking process the locking bolts essentially have a supporting function in the upper lateral surface half of the frustoconical area and the oblique clamping surface of the adapter housing slides over the entire surface onto the oblique clamping surface of the locking plate, so that with a multiaxial bracing of adapter and implement takes place simultaneously with the initiation of the locking process.
- the adapter housing is pressed forward against the coupling axis, and the preferably elliptical space between the locking bolts and openings in the locking plate ensures that the locking bolts continuously adjust, that is to say can move into the locking position.
- the locking bolts which are under spring tension, thus assume a low-tension function, whereby the contact claws on the coupling axis create a surface pressure between the above-mentioned inclined surfaces.
- a pre-centering is achieved when lowering the adapter housing onto the adapter plate assigned to the implement, which not only facilitates the locking process and significantly reduces wear due to canting between the adapter housing and implement, but also enables instruction-free changing of implement.
- the switching shaft of the locking device can be driven both mechanically and hydraulically, in the mechanical embodiment, an articulated lever mechanism with locking via the dead center, and in the hydraulic embodiment, the locking bolts are articulated via an oscillating pressure compensation bridge and a hydraulic cylinder.
- a quick change device designated overall by the reference number 10 in FIG. 1, comprises an adapter consisting of adapter housing 30 and adapter plate 12, of which the housing 30 is associated with an extension arm (not shown here) of an earthmoving machine (also not shown) and the adapter plate 12 is associated with the implement (also not shown) so they are firmly connected.
- the adapter plate 12 comprises a base plate 14, on which a locking plate 16 is welded at one end and a coupling axis 19 is welded at the opposite end by means of fastening tabs 17.
- the locking plate 16 has on the side facing the coupling axis a clamping surface 20 which is inclined to the vertical surface 20 'by 3 ° to 35 °, preferably by 5 ° to 15 °.
- the locking plate 16 is furthermore, as can be seen in particular from FIG. 3, provided with two openings 21 and 22 which are arranged at a distance a from one another and have a conical cross section.
- the cone angle of the openings delimited by conical surface areas is dimensioned accordingly and is 5 ° to 15 ° in the exemplary embodiment shown.
- the approximately cuboidal adapter housing 30 has a receiving claw 31 on its side faces, which in the retracted state - compare FIG. 2 - encompass the coupling axis 19.
- the end face of the housing 30 located between the receiving claws 31 merges into an abutment surface 32 in the form of a cylinder jacket, which — as also shown in FIG. 2 — is supported on the cylinder jacket surface of the coupling axis 19 in the retracted state.
- the facing end face 34 is inclined by 3 ° to 35 °, preferably by 5 ° to 15 °, with respect to the vertical - corresponding to the clamping surface 20 of the locking plate 16 - and also has two openings 35 through which one each is mounted in the housing 30 so as to be longitudinally displaceable Latch bolt 36 can pass through.
- Each locking bolt 36 has a spring 38 arranged in a blind bore 37, the free end of which is supported on a spring plate 39, to which the end face of an angle lever 41 is assigned.
- the angle lever 41 is articulated by means of a connecting bolt 42 on a switching cam 43 which is fixedly connected to a switching shaft 44.
- the facing arm of the angle lever 41 is connected in an articulated manner to the locking bolt 36 via a connecting bolt 45, which extends through an elongated hole 46 at the facing end of the locking bolt 36.
- the parts described above form a known toggle lever mechanism, which is driven via the selector shaft 44 and moves beyond the dead center position - imaginary connecting line of the center points of the selector shaft 44 and connecting bolt 45 - when moving from the rest position shown in FIG. 1 into the working position shown in FIG and locked with it. In this way, automatic release of the extended locking bolts 36 from the locking position shown in Figure 2 is prevented.
- the opposite ends 50 of the locking bolts 36 are frustoconical in shape with a cone angle of 5 ° to 15 ° and correspond to the openings 21, 22 in the locking plate 16, as can also be clearly seen from FIG. 2.
- centering members are provided, of which the centering members assigned to the adapter housing 30 are designed as cylindrical pins 52 (FIG. 1) which lie in the flat end face 34 on both sides of the displaceable locking bolts 36.
- the centering members assigned to the locking plate 16 are inclined surfaces 51 (FIG. 3) lying in the lowering path of the adapter housing 30.
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)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Forging (AREA)
- Beans For Foods Or Fodder (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
- Earth Drilling (AREA)
- Jib Cranes (AREA)
- Pivots And Pivotal Connections (AREA)
- Agricultural Machines (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Claims (3)
- Dispositif de changement rapide (10) destiné à des véhicules qui déplaçent la terre pour échanger des appareils de travail, comportant un adaptateur (30) en basculement autour d'un axe horizontal sur un bras de la machine de déplacement de terre, qui présente des organes d'accouplement réalisés sous forme de pinces fermes (31) et sous forme de goujons de verrouillage (36) mobiles et guidés parallèlement, pour la liaison détachable d'organes d'accouplement (16, 19) correspondants sur l'appareil de travail, dont un organe d'accouplement est une plaque de verrouillage présentant des ouvertures (21, 22) pour l'entrée des organes d'accouplements mobiles (36), et dont l'autre organe d'accouplement forme un axe d'accouplement (19) entouré du moins partiellement par les pinces (31), dans lequel la surface de montage (32) des organes d'accouplement de l'adaptateur (30), laquelle est associée aux pinces (31) est réalisée sous forme d'une surface de montage en forme d'enveloppe cylindrique délimitée par les pinces (31), pour l'appui contre la surface enveloppe de l'axe d'accouplement (19) de l'appareil de travail, tandis que la surface de montage (34) associée à la plaque de verrouillage (16) est réalisée de façon plate et est agencée en oblique vers une surface verticale (20') de la plaque de verrouillage (16) et présente une surface de montage (20) orientée vers la surface de montage (34) de l'adaptateur (30) et correspondant à celle-ci et en appui par toute sa surface à l'état de verrouillage, et dans lequel les surfaces d'accouplement (50) des organes d'accouplement mobiles (36) et les surfaces d'accouplement des organes d'accouplements associés (21, 22) de la plaque de verrouillage (16) sont réalisées sous forme de surfaces enveloppes coniques qui se correspondent mutuellement sur un angle périphérique d'environ 180°, et les surfaces partielles périphériques complétant à 360° l'angle périphérique des organes d'accouplement (21, 22) associés à la plaque de verrouillage (16) enferment un jeu de montage prédéterminé (S) conjointement avec les régions de surface périphérique associées des organes d'accouplement mobiles, dans lequel les surfaces de montage (34, 20) forment avec les surfaces des organes d'accouplement mobiles et avec les ouvertures correspondant à celles-ci dans la plaque de verrouillage (16) une transmission en coin forçant un glissement et un serrage des surfaces de montage (34, 30, 32, 19) orientées les unes vers les autres de l'adaptateur et de l'appareil de travail, et les goujons de verrouillage (36) guidés parallèlement dans le boîtier d'adaptateur (30) au moyen de douilles de montage (49) sont réalisés de manière à pouvoir être transférés depuis la position de repos jusque dans la position d'action située au-dessous de la position du point mort, via un arbre de commutation commun (44) au moyen d'une transmission à levier à genouillère (41, 42, 43, 45) avec interposition d'un ressort de pression respectif (38).
- Dispositif à serrage rapide selon la revendication 1, caractérisé en ce que les organes d'accouplement réalisés en forme de goujons de verrouillage (36) et les organes d'accouplement (21, 22) associés à la plaque de verrouillage (16) et correspondant avec les surfaces périphériques (50) des organes d'accouplement mobiles présentent deux centres (Z1, Z2) agencés à distance l'un de l'autre, dont l'un (Z1) se trouve au centre par rapport au goujon de verrouillage associé (36).
- Dispositif à serrage rapide selon la revendication 1, caractérisé en ce que les surfaces de montage plates (20, 343) présentent une inclinaison de 3° à 35°, de préférence de 5° à 15°, par rapport à la surface verticale (20'), et en ce que les surfaces d'accouplement (50, 21, 22) présentent des angles d'inclinaison correspondant à l'inclinaison des surfaces de montage.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4214569 | 1992-05-08 | ||
DE4214569A DE4214569C2 (de) | 1992-05-08 | 1992-05-08 | Schnellwechselvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0569026A1 EP0569026A1 (fr) | 1993-11-10 |
EP0569026B1 true EP0569026B1 (fr) | 1997-03-12 |
Family
ID=6458033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93107458A Expired - Lifetime EP0569026B1 (fr) | 1992-05-08 | 1993-05-07 | Dispositif d'attache rapide |
Country Status (7)
Country | Link |
---|---|
US (1) | US5333695A (fr) |
EP (1) | EP0569026B1 (fr) |
AT (1) | ATE150121T1 (fr) |
CA (1) | CA2076441C (fr) |
DE (2) | DE4214569C2 (fr) |
ES (1) | ES2102548T3 (fr) |
NO (1) | NO179591C (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005037105B3 (de) * | 2005-08-03 | 2006-11-30 | Lehnhoff Hartstahl Gmbh & Co. Kg | Adapter für ein Arbeitsgerät als Teil einer Schnellwechselvorrichtung und Schnellwechselvorrichtung |
DE202008015191U1 (de) | 2008-11-14 | 2009-02-26 | Gerhard Henle Besitzunternehmen E.K. | Schnellwechseleinrichtung |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2259293B (en) * | 1992-10-20 | 1996-01-10 | Hugh Robert Edeleanu | Excavator Bucket Coupling System |
DK170425B1 (da) * | 1993-04-26 | 1995-08-28 | Dam Rasmussen Kaj | Redskabsholder til grave- eller læssemaskine |
GB2286382A (en) * | 1994-02-04 | 1995-08-16 | Bamford Excavators Ltd | Device for releasably mounting a working implement |
US5634735A (en) * | 1995-06-07 | 1997-06-03 | Wain-Roy, Inc. | Tool coupler |
DE19525387C2 (de) * | 1995-07-12 | 2001-11-08 | Volvo Constr Equip Korea Co | Vorrichtung zum lösbaren Befestigen eines Werkzeuges an einem Arm einer Baumschine |
JP3066950B2 (ja) * | 1995-10-12 | 2000-07-17 | 本田技研工業株式会社 | 作業機のヒッチ構造 |
US5727342A (en) * | 1996-04-18 | 1998-03-17 | Wain-Roy, Inc. | Hydraulic latch pin assembly for coupling a tool to a construction equipment |
US5974706A (en) * | 1997-03-10 | 1999-11-02 | Clark Equipment Company | Attachment construction for earthworking implement |
US5983535A (en) * | 1997-03-10 | 1999-11-16 | Clark Equipment Company | Fastener secured frame for boom mounted quick change bracket |
US6163989A (en) * | 1997-03-10 | 2000-12-26 | Clark Equipment Company | Frame for mounting on a boom mounted quick change bracket |
DE19806057C2 (de) * | 1998-02-13 | 2002-11-28 | Franz Wimmer | Baumaschinenadapter |
AU1702000A (en) * | 1998-12-10 | 2000-07-12 | Ove Hammarstrand | Tool arrangement |
US6431785B1 (en) | 2000-06-05 | 2002-08-13 | Wec Co. | Direct pin quick coupler |
AT413118B (de) * | 2002-05-23 | 2005-11-15 | Hauer Franz | Einrichtung zur befestigung eines zusatzgerätes, insbesondere eines ladegerätes, an einem tragfahrzeug |
ES2230981B1 (es) * | 2003-01-24 | 2007-03-01 | Claudi Herguido Fo | Dispositivo de acoplamiento rapido para implementos de maquinas excavadoras o analogas. |
DE102004014824B4 (de) | 2004-03-24 | 2019-08-01 | Lehnhoff Hartstahl Gmbh | Schnellwechselvorrichtung mit einer hydraulischen Kupplung für die Medien an einem Baugerät |
DE102004014823B4 (de) * | 2004-03-24 | 2006-12-07 | Lehnhoff Hartstahl Gmbh & Co | Schnellkupplungsvorrichtung an einem Baugerät mit Ventilzentrierung |
US20070134081A1 (en) * | 2004-05-21 | 2007-06-14 | Seabolt Steven P | Tool carrier attachment adapter |
US7530405B2 (en) * | 2005-09-09 | 2009-05-12 | Deere & Company | Implement quick coupler latch mechanism |
CN104563186A (zh) * | 2006-04-20 | 2015-04-29 | 卡特彼勒公司 | 快速联接器 |
DE102006023420B4 (de) | 2006-05-17 | 2013-02-28 | Lehnhoff Hartstahl Gmbh & Co. Kg | Schnellwechselvorrichtung |
US7882898B1 (en) * | 2007-04-20 | 2011-02-08 | Caterpillar Inc. | Quick coupler |
DE102007023751A1 (de) | 2007-05-22 | 2008-11-27 | Kurz, Andreas, Dipl.-Ing. | Schnellwechselvorrichtung für Erdbewegungsfahrzeuge zum Auswechseln von Arbeitsgeräten |
US7984575B2 (en) * | 2007-07-05 | 2011-07-26 | Caterpillar Inc. | Quick coupler assembly |
FI20070922L (fi) * | 2007-11-29 | 2009-05-30 | Actioneco Oy | Kiinnityslaite ja työkone, jossa kiinnityslaitetta sovelletaan |
US20100027371A1 (en) * | 2008-07-30 | 2010-02-04 | Bruce Lucas | Closed Blending System |
US20100071284A1 (en) * | 2008-09-22 | 2010-03-25 | Ed Hagan | Self Erecting Storage Unit |
US20100282520A1 (en) * | 2009-05-05 | 2010-11-11 | Lucas Bruce C | System and Methods for Monitoring Multiple Storage Units |
US20100329072A1 (en) * | 2009-06-30 | 2010-12-30 | Hagan Ed B | Methods and Systems for Integrated Material Processing |
AT508631A1 (de) | 2009-08-21 | 2011-03-15 | Perwein Baumaschinen Systeme Gmbh | Kupplungsvorrichtung |
US8444312B2 (en) * | 2009-09-11 | 2013-05-21 | Halliburton Energy Services, Inc. | Methods and systems for integral blending and storage of materials |
US8834012B2 (en) * | 2009-09-11 | 2014-09-16 | Halliburton Energy Services, Inc. | Electric or natural gas fired small footprint fracturing fluid blending and pumping equipment |
USRE46725E1 (en) | 2009-09-11 | 2018-02-20 | Halliburton Energy Services, Inc. | Electric or natural gas fired small footprint fracturing fluid blending and pumping equipment |
US8511150B2 (en) * | 2009-12-10 | 2013-08-20 | Halliburton Energy Services, Inc. | Methods and systems for determining process variables using location of center of gravity |
US8354602B2 (en) * | 2010-01-21 | 2013-01-15 | Halliburton Energy Services, Inc. | Method and system for weighting material storage units based on current output from one or more load sensors |
GB201108376D0 (en) * | 2011-05-19 | 2011-06-29 | Shadowfiction Ltd | An automatic quick hitch for an extractor |
US8833480B2 (en) | 2011-06-24 | 2014-09-16 | Caterpillar Inc. | Coupler with visibility window |
US9217235B2 (en) | 2012-05-30 | 2015-12-22 | Caterpillar Inc. | Tool coupler system having multiple pressure sources |
US8684623B2 (en) | 2012-05-30 | 2014-04-01 | Caterpillar Inc. | Tool coupler having anti-release mechanism |
DE102014019967B3 (de) * | 2014-01-28 | 2021-04-15 | Jürgen Wolf | Schnellwechselvorrichtung für ein Baugerät mit Ausleger |
DE102014101001B4 (de) | 2014-01-28 | 2019-09-05 | Jürgen Wolf | Schnellwechselvorrichtung für ein Baugerät mit Ausleger |
DE102014116245B4 (de) | 2014-11-07 | 2016-11-10 | Bela Cseri | Schnellwechseleinrichtung einer Arbeitsmaschine |
DE102015210860A1 (de) * | 2015-06-12 | 2016-12-15 | Lehnhoff Hartstahl Gmbh & Co. Kg | Schnellwechsler |
DE102020110523A1 (de) * | 2020-04-17 | 2021-10-21 | Liebherr-Hydraulikbagger Gmbh | Schnellkupplung mit Zentriervorrichtung |
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AT374526B (de) * | 1981-02-23 | 1984-05-10 | Voest Alpine Ag | Einrichtung zum loesbaren anbau einer ladeschaufel od. dgl. an ein ladegeraet |
DE3312442C2 (de) * | 1983-04-07 | 1986-05-28 | Karl Schaeff GmbH & Co, Maschinenfabrik, 7183 Langenburg | Schnellwechselvorrichtung für Arbeitswerkzeuge an einem Baggerausleger |
CH661305A5 (de) * | 1983-09-15 | 1987-07-15 | Stury Fredi Ag | Bagger mit einer einrichtung zum wahlweisen befestigen des baggerloeffels am baggerausleger. |
US4549744A (en) * | 1984-08-20 | 1985-10-29 | Deere & Company | Quick coupler latch |
GB2177674B (en) * | 1985-07-10 | 1988-10-05 | Bamford Excavators Ltd | Mounting a working implement |
WO1988001322A1 (fr) * | 1986-08-18 | 1988-02-25 | Paul Owen Jones | Attache amelioree |
IT1205567B (it) * | 1986-11-11 | 1989-03-23 | Fai Compaci Internazional S P | Dispositivo di aggancio rapido per attrezzatura posteriore di pala caricatrice |
FR2609075B1 (fr) * | 1986-12-26 | 1991-08-30 | Poncin Gilles | Dispositif d'attache rapide pour equipements d'engins de genie civil et de manutention |
NZ222864A (en) * | 1987-06-04 | 1991-02-26 | William John Balemi | Connector for attaching implements to vehicle boom |
AT389906B (de) * | 1987-11-23 | 1990-02-26 | Lehnhoff Hartstahl Ges M B H | Schnellwechselvorrichtung mit automatischer verriegelung fuer arbeitswerkzeuge an einem baggerausleger |
SU1563606A1 (ru) * | 1988-07-29 | 1990-05-15 | Научно-производственное объединение по сельскохозяйственному машиностроению | Сельскохоз йственный агрегат |
US4984958A (en) * | 1989-10-31 | 1991-01-15 | Deere & Company | Carrier frame for a quick coupler |
FR2670520A1 (fr) * | 1990-12-17 | 1992-06-19 | Esco Sa | Dispositif perfectionne de fixation, rapide d'outil de travail sur un bras d'une machine notamment de travaux publics. |
WO1991018716A1 (fr) * | 1990-06-08 | 1991-12-12 | Esco Corporation | Dispositif de fixation rapide |
-
1992
- 1992-05-08 DE DE4214569A patent/DE4214569C2/de not_active Expired - Fee Related
- 1992-07-09 US US07/911,185 patent/US5333695A/en not_active Expired - Fee Related
- 1992-08-19 CA CA002076441A patent/CA2076441C/fr not_active Expired - Fee Related
-
1993
- 1993-05-05 NO NO931626A patent/NO179591C/no unknown
- 1993-05-07 EP EP93107458A patent/EP0569026B1/fr not_active Expired - Lifetime
- 1993-05-07 DE DE59305686T patent/DE59305686D1/de not_active Expired - Lifetime
- 1993-05-07 ES ES93107458T patent/ES2102548T3/es not_active Expired - Lifetime
- 1993-05-07 AT AT93107458T patent/ATE150121T1/de active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005037105B3 (de) * | 2005-08-03 | 2006-11-30 | Lehnhoff Hartstahl Gmbh & Co. Kg | Adapter für ein Arbeitsgerät als Teil einer Schnellwechselvorrichtung und Schnellwechselvorrichtung |
EP1749939A1 (fr) | 2005-08-03 | 2007-02-07 | Lehnhoff Hartstahl GmbH & Co. | Adaptateur pour outil de travail faisant partie d'un dispositif changeur rapide et dispositif changeur rapide |
DE102005037105C5 (de) * | 2005-08-03 | 2011-06-22 | Lehnhoff Hartstahl GmbH & Co. KG, 76534 | Adapter für ein Arbeitsgerät als Teil einer Schnellwechselvorrichtung und Schnellwechselvorrichtung |
DE202008015191U1 (de) | 2008-11-14 | 2009-02-26 | Gerhard Henle Besitzunternehmen E.K. | Schnellwechseleinrichtung |
Also Published As
Publication number | Publication date |
---|---|
ES2102548T3 (es) | 1997-08-01 |
NO931626D0 (no) | 1993-05-05 |
NO179591B (no) | 1996-07-29 |
NO931626L (no) | 1993-11-09 |
EP0569026A1 (fr) | 1993-11-10 |
US5333695A (en) | 1994-08-02 |
CA2076441A1 (fr) | 1993-11-09 |
ATE150121T1 (de) | 1997-03-15 |
NO179591C (no) | 1996-11-06 |
DE4214569C2 (de) | 2001-12-20 |
DE4214569C1 (de) | 1993-12-16 |
DE59305686D1 (de) | 1997-04-17 |
CA2076441C (fr) | 2004-11-16 |
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