EP1541771A1 - Hydraulischer Schwenkantrieb für einen Greifer - Google Patents
Hydraulischer Schwenkantrieb für einen Greifer Download PDFInfo
- Publication number
- EP1541771A1 EP1541771A1 EP04026554A EP04026554A EP1541771A1 EP 1541771 A1 EP1541771 A1 EP 1541771A1 EP 04026554 A EP04026554 A EP 04026554A EP 04026554 A EP04026554 A EP 04026554A EP 1541771 A1 EP1541771 A1 EP 1541771A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plunger
- shaft drive
- pivot shafts
- drive piece
- pivot
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000012886 Vertigo Diseases 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
- F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
- F15B15/068—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the helical type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
- B66C3/005—Grab supports, e.g. articulations; Oscillation dampers; Orientation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
- B66C3/14—Grabs opened or closed by driving motors thereon
- B66C3/16—Grabs opened or closed by driving motors thereon by fluid motors
-
- 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
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/413—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with grabbing device
Definitions
- the present invention relates to a hydraulic rotary actuator for a Gripper, which has two gripping arms movable in a manner of pincers, in particular clamshell claws, with two rotatably mounted in a shell carrier, to each other parallel pivot shafts whose shaft ends are connectable to the gripping arms, and with a shaft drive piece which is displaceable parallel to the pivot shafts is mounted and with two pivot shafts in each case in screw engagement stands, so that by moving the shaft drive piece, the pivot shafts be twisted in opposite directions.
- Such a rotary actuator for a clamshell grab is known from DE 201 07 206 U1 known in which the pivot shafts are each part of a hydraulic motor, which enclosed by the designed as a closed housing shell carrier is.
- the gripping arms or Greifschalen aufund swivel sitting each pipe sections, the longitudinally displaceable, but rotatably are guided and are in screw engagement with the respective pivot shaft, so that a longitudinal displacement of the pipe pieces to a rotation of the pivot shafts leads.
- the pipe sections are connected by a common center piece, with Together they form a piston inside the case, which is for the Piston forms the cylinder is added.
- the housing is limited to both Sides of this piston each have a pressure chamber containing hydraulic fluid can be acted upon. Depending on which of the two pressure chambers with hydraulic fluid is acted upon, moves the piston and the pipe sections provided thereon in one or the other direction, so that the pivot shafts attached thereto Either open or swivel the hook shells.
- the present invention is therefore based on the object, an improved To provide pivot drive of the type mentioned, the disadvantages of the prior Avoiding technology and the latter develops in an advantageous manner.
- the rotary actuator is therefore characterized according to the invention in that the Shaft drive piece which is in screw engagement with the pivot shafts of at least a hydraulically actuated plunger is driven. It no longer forms the whole shaft drive piece that acted upon by the hydraulic fluid Piston, so that accordingly the case is not more than cylinder must act and be trained for the shaft drive piece.
- the shell carrier and the shaft drive piece connected Plunger becomes a volume chamber much smaller pressure chamber achieved, so that even with a large center distance of the pivot shafts only relatively low forces act and must be intercepted.
- the Seal the pressure chamber much easier.
- a seal between the Shaft drive piece and the pivot shafts can be omitted as well as a seal between the shaft drive piece and the entire assembly receiving Pan support. It is sufficient if only the plunger opposite the pressure chamber acting on the piston is sealed.
- the plunger acts on the pressure chamber provided in the shaft drive piece.
- the plunger can be displaced in a cylindrical, in particular circular cylindrical recess in sit the shaft drive piece and stand out with a protruding from the recess Support the end section with respect to the shell support.
- the plunger can with its protruding from the recess end directly to the inner wall support the tray carrier. It goes without saying that here as well, if necessary Intermediate pieces such as piston rods and the like can be interposed.
- the plunger Pressure chamber not in the shaft drive piece, but in the shell carrier to arrange.
- the plunger sits in this case displaceable in a cylindrical Recess in the shell carrier and is supported against the shaft drive piece so that a displacement of the plunger in the cylindrical Recess in the shell carrier shifts the shaft drive piece accordingly.
- receiving the plunger in the shaft drive piece has the advantage a more compact arrangement with a simplified form of the tray carrier.
- the at least one plunger can be designed double acting. He can do this in the manner of a double-acting Hydraulic cylinder so sitting in the cylindrical recess that on both sides of the piston is a pressure chamber is limited, and for example over from Support the chamber protruding piston rods on both sides of the shell carrier.
- a plurality of unilaterally acting plunger provided, of which one of the displacement of the shaft drive piece in a first direction and another of the displacement of the shaft drive piece in the opposite direction is used.
- a pair of first plunger and provided a pair of second plunger The named pair of first plunger serves to move the shaft drive piece in a first direction, the corresponds to a pivoting of the gripping arms.
- the mentioned pair of second plungers serves to move the shaft drive piece in a second direction, which corresponds to a pivoting together of the gripping arms.
- first plunger and the second plunger each arranged symmetrically to a plane containing the plane of symmetry forms to the two pivot shafts. This causes tilting of the shaft drive piece prevented. Uniform forces act on both pivot shafts.
- first plunger are perpendicular to a the two pivot shafts connecting straight lines spaced from each other.
- the second plungers are advantageously parallel to the two Swivel shafts connecting straight lines spaced from each other.
- the plungers could all have the same cross-sectional area.
- the plungers have different cross-sectional areas.
- they can effect the pivoting together of the gripping arms Plunger have a larger cross-sectional area than the Plungerkolben, which cause the pivoting of the gripping arms.
- the overall larger Cross-sectional area of the or the plunger for pivoting together can with the same hydraulic pressure greater forces for pivoting together of the gripper can be achieved.
- the shaft drive piece has two engagement sections, each provided with an internal thread toothing and respectively sitting on one of the pivot shafts, as well as a connecting the two engagement sections Centerpiece, which engages the at least one plunger.
- the shaft drive piece has two engagement sections, each provided with an internal thread toothing and respectively sitting on one of the pivot shafts, as well as a connecting the two engagement sections Centerpiece, which engages the at least one plunger.
- a plurality of cylindrical recesses which are open to opposite sides of the middle piece and respectively pick up a plunger.
- the middle piece does not need twice the depth of the cylindrical recesses for the plunger, so that a particularly short-building arrangement can be achieved.
- the shell carrier is designed as a closed housing, from essentially only the shaft ends of the pivot shafts protrude.
- the remaining sections and components of the rotary actuator can be inside be arranged of the closed housing, so that a total of encapsulated Construction is achieved, the pivot drive from external environmental effects protects.
- the housing may advantageously consist of two to the longitudinal axes the pivot shafts substantially vertical end walls and two Housing halves consist, connect the end walls together.
- the End walls have on their inner sides preferably supporting surfaces for the Plungers.
- the shaft drive piece can from the housing walls through a gap be spaced.
- the shaft drive piece can be free of seals be towards the housing.
- the seals between the shaft drive piece and the pivot shafts omitted.
- the pivot drive shown in the drawings comprises a shell carrier 1, which is designed as a housing and in a conventional manner to the stem of a Excavator or another hoist is coupled.
- a shell carrier 1 can the shell carrier 1 at its top an annular pivot bearing 2 and a have this associated rotary drive 3 to the gripper to an upright To be able to turn axis.
- the shell carrier 1 comprises two mutually parallel end walls 4 and 5, which are interconnected by two housing halves 6, 7, located in the extend substantially perpendicular to the end walls 4 and 5 (see Figure 1).
- the two end walls 4 and 5 have a substantially elliptical shape and bound together with the housing half-shells 6 and 7 a cylindrical, on average essentially elliptical interior.
- Swivel shafts 8 and 9 Inside the housing formed by the shell carrier 1 are two Swivel shafts 8 and 9 arranged, which are arranged parallel to each other and from each other are spaced.
- the two pivot shafts 8 and 9 are in the end walls 4 and 5 rotatable, but axially fixed and protrude with their peg-shaped Shaft ends out of the housing.
- At the cone-shaped shaft ends 10 may in a conventional manner gripper shells, in the drawing are not shown, rotatably coupled, so that the gripper shells through Turning the pivot shafts 8 and 9 can be pivoted up and down.
- the pivot shafts 8 and 9 are on their inside the shell carrier 1 lying portion provided with a helical toothing 11.
- a shaft drive piece 12 With both pivot shafts 8 and 9 is a shaft drive piece 12 is engaged, the arranged in the interior of the shell carrier 1 and parallel to the longitudinal axes of the Swivel shafts 8 and 9 is slidably mounted.
- the shaft drive piece 12 comprises at opposite ends tubular engaging portions 13 which on the Swivel shafts 8 and 9 sit and each have a helical internal toothing own, with the respective teeth 11 of the pivot shafts 8 and 9 in Screw engagement stands. Will the shaft drive piece 12 in the direction parallel to the Swinging shafts 8 and 9, the pivot shafts 8 and 9 are in opposite directions driven in rotation, whereby the attached to the shaft ends 10 looper shells open and close.
- the engaging portions 13 of the shaft driving piece are 12 interconnected, through the center piece 14 of the shaft drive piece 12.
- the shaft drive piece 12 may be an integral one-piece casting be.
- the shaft drive piece 12 may be a welded sheet metal profile piece be.
- a plurality of plungers are provided, which act on said center piece 14 of the shaft drive piece 12.
- Figure 2 shows a total of four plungers are provided, which are arranged crosswise are and each extending parallel to the pivot shafts.
- Two first plunger 15 are vertical in the illustrated embodiment arranged one above the other in the plane of symmetry of the pivot shaft drive.
- Two second plungers 16 are perpendicular to said plane of symmetry spaced apart in a plane, which is also the two Swing shafts 8 and 9 contains.
- the second plunger 16 have, as Figure 2 shows a slightly larger cross section than the first plunger 15. Both first plunger 15 have the same cross section. Likewise, the two own second plunger 16 the same cross section.
- the plungers 15 and 16 are each circular cylindrical and stuck in circular cylindrical recesses 17 and 18, in the center piece 14 of the shaft drive piece 12 are each formed as a blind hole.
- the mentioned cylinder recesses 17 and 18 limit together with the faces of the in the Recesses sitting plunger 15 and 16 pressure chambers 19 and 20 respectively (see Figure 1), which can be acted upon with pressurized fluid to the plunger 15 and 16 to move relative to the shaft drive piece 12.
- the pressure chambers 19 and 20 can thereby via - not shown in the drawings - pressure connections pressurized fluid from the external hydraulic supply become.
- the pressurized fluid supply and discharge into and out of the pressure chambers 19 and 20 can through the walls of the cylinder recesses 17 and 18th or else through the plungers.
- the plungers 15 and 16 have one of the cylinder recesses 17th and 18 emergent end portions 21 and 22, respectively, opposite to the respective one End wall 4 or 5 is supported, in particular immediately adjacent thereto.
- the cylinder recesses 17 and 18 are opposite to each other Side of the shaft drive piece 12 open so that all the first plunger Support 15 on the one end wall 4, while all second plunger Support 16 on the opposite end wall 5 of the tray carrier 1.
- the support of the plunger 15 and 16 causes when pressurized the pressure chambers 19 or 20 are not the plunger 15 or 16 move, but the shaft drive piece 12 is moved accordingly.
- the shaft drive piece 12 does not need to be opposite the pivot shafts 8 and 9 still opposite the walls of the tray carrier 1 to be sealed because there is no longer the space between shaft drive piece 12 and shell carrier 1, which serves as a pressure chamber. It only need the plungers 15 and 16 hydraulically sealed in the respective cylinder recess 17 and 18 are sitting.
- suitable Sealant be arranged for example in the form of sealing rings. alternative or additionally, at the periphery of the plunger to their in the recess sitting end towards corresponding sealant, for example in the form of Be provided sealing rings.
Abstract
Description
- Fig. 1:
- eine perspektivische Teilschnittansicht eines Schwenkantriebs für einen Zweischalengreifer nach einer bevorzugten Ausführung der Erfindung, bei der eine der Schwenkwellen sowie zwei der Plungerkolben des hydraulischen Antriebs zum Drehen der Schwenkwellen freigeschnitten sind,
- Fig. 2:
- einen vertikalen Längsschnitt senkrecht zu den Schwenkwellen durch den Schwenkantrieb aus Fig. 1,
- Fig. 3:
- einen horizontalen Längsschnitt durch den Antrieb aus den vorhergehenden Figuren, der die Schnittebene enthaltend die beiden Schwenkwellen zeigt, und
- Fig. 4:
- einen vertikalen Querschnitt parallel zu den Schwenkwellen, der eine Schnittebene zeigt, die der Symmetrieebene zwischen den beiden Schwenkwellen entspricht.
Claims (10)
- Hydraulischer Schwenkantrieb für einen Greifer, der zwei zangenartig bewegbare Greifarme besitzt, insbesondere Zweischalengreifer, mit zwei in einem Schalenträger (1) drehbar gelagerten, zueinander parallelen Schwenkwellen (8, 9), deren Wellenenden (10) mit den Greifarmen verbindbar sind, sowie einem Wellenantriebsstück (12), das parallel zu den Schwenkwellen (8, 9) verschieblich gelagert ist und mit beiden Schwenkwellen (8, 9) jeweils in Schraubeingriff steht, so dass durch Verschieben des Wellenantriebsstücks (12) die Schwenkwellen (8, 9) gegenläufig verdreht werden, dadurch gekennzeichnet, dass zumindest ein hydraulisch beaufschlagbarer Plungerkolben (15, 16) zum Verschieben des Wellenantriebsstücks (12) vorgesehen ist.
- Schwenkantrieb nach dem vorhergehenden Anspruch, wobei der Plungerkolben (15, 16) in einer zylindrischen, insbesondere kreiszylindrischen Ausnehmung (17, 18) in dem Wellenantriebsstück (12) verschieblich aufgenommen ist und sich mit einem aus der Ausnehmung (17, 18) herausragenden Endabschnitt gegenüber dem Schalenträger (1) abstützt.
- Schwenkantrieb nach einem der vorhergehenden Ansprüche, wobei ein erster Plungerkolben (15) zum Verschieben des Wellenantriebsstücks (12) in eine erste Richtung, die einem Aufschwenken der Greifarme entspricht, und ein zweiter Plungerkolben (16) zum Verschieben des Wellenantriebsstücks (12) in eine zweite Richtung, die einem Zusammenschwenken der Greifarme entspricht, vorgesehen sind.
- Schwenkantrieb nach dem vorhergehenden Anspruch, wobei ein Paar erste Plungerkolben (15) und/oder ein Paar zweite Plungerkolben (16) vorgesehen sind.
- Schwenkantrieb nach dem vorhergehenden Anspruch, wobei die ersten Plungerkolben (15) und die zweiten Plungerkolben (16) jeweils symmetrisch zu einer Symmetrieebene zu den Schwenkwellen (8, 9) angeordnet sind und/oder in verschiedene Richtungen voneinander beabstandet sind.
- Schwenkantrieb nach einem der vorhergehenden Ansprüche, wobei zumindest ein erster Plungerkolben (15) mit einer kleineren Querschnittsfläche als ein zweiter Plungerkolben (16) vorgesehen ist.
- Schwenkantrieb nach einem der vorhergehenden Ansprüche, wobei das Wellenantriebsstück (12) zwei vorzugsweise rohrförmige Eingriffsabschnitte (13), die jeweils mit einer Innengewindeverzahnung versehen sind und jeweils auf einer der Schwenkwellen (8, 9) sitzen, sowie ein die beiden Eingriffsabschnitte (13) verbindendes Mittelstück (14) aufweist, an dem der zumindest eine Plungerkolben (15, 16) angreift.
- Schwenkantrieb nach einem der vorhergehenden Ansprüche, wobei das Wellenantriebsstück (12) frei von Dichtungen zum Schalenträger (1) und/oder zu den Schwenkwellen (8, 9) ausgebildet ist.
- Schwenkantrieb nach einem der vorhergehenden Ansprüche, wobei der Schalenträger (1) als geschlossenes Gehäuse ausgebildet ist, aus dem im wesentlichen nur die Wellenenden (10) der Schwenkwellen (8, 9) herausragen, wobei vorzugsweise das Gehäuse zwei zu den Längsachsen der Schwenkwellen (8, 9) im wesentlichen senkrechte Stirnwandungen (4, 5) aufweist, die miteinander durch zwei Gehäusehalbschalen (6, 7) verbunden sind und zumindest eine Abstützfläche für den zumindest einen Plungerkolben (15, 16) besitzen.
- Schwenkantrieb nach einem der vorhergehenden Ansprüche, wobei das Wellenantriebsstück (12) und/oder der zumindest eine Plungerkolben (15, 16) Druckanschlüsse aufweisen, über die die zwischen dem Wellenantriebsstück (12) und dem zumindest einen Plungerkolben vorgesehene Druckkammer (19, 20) mit Druckfluid beaufschlagbar ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL04026554T PL1541771T3 (pl) | 2003-12-11 | 2004-11-09 | Hydrauliczny napęd uchylny dla chwytaka |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20319227U DE20319227U1 (de) | 2003-12-11 | 2003-12-11 | Hydraulischer Schwenkantrieb für einen Greifer |
DE20319227U | 2003-12-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1541771A1 true EP1541771A1 (de) | 2005-06-15 |
EP1541771B1 EP1541771B1 (de) | 2009-09-30 |
Family
ID=34485635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04026554A Not-in-force EP1541771B1 (de) | 2003-12-11 | 2004-11-09 | Hydraulischer Schwenkantrieb für einen Greifer |
Country Status (11)
Country | Link |
---|---|
US (1) | US7448312B2 (de) |
EP (1) | EP1541771B1 (de) |
JP (1) | JP4584694B2 (de) |
KR (1) | KR20050058207A (de) |
AT (1) | ATE444407T1 (de) |
CA (1) | CA2489610A1 (de) |
DE (2) | DE20319227U1 (de) |
DK (1) | DK1541771T3 (de) |
ES (1) | ES2334227T3 (de) |
NO (1) | NO20045313L (de) |
PL (1) | PL1541771T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20120163A1 (it) * | 2012-02-24 | 2013-08-25 | Cangini Benne Srl | Macchina operatrice provvista di un dispositivo di basculamento per un'attrezzatura |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004013158U1 (de) * | 2004-08-23 | 2006-01-12 | Kinshofer Greiftechnik Gmbh & Co. Kg | Hydraulischer Schwenkantrieb für einen Greifer |
DE202014105319U1 (de) * | 2014-11-05 | 2014-11-17 | Igus Gmbh | Hub-Schwenkeinheit |
DE202015006973U1 (de) | 2015-10-06 | 2017-01-10 | Kinshofer Gmbh | Hydraulischer Schwenkantrieb sowie Greifer mit einem solchen Schwenkantrieb |
EP3333112B1 (de) | 2016-12-09 | 2019-10-23 | Cargotec Patenter AB | Lasthandhabungswerkzeug und hydraulischer kran mit einem derartigen lasthandhabungswerkzeug |
SI25733A (sl) | 2018-11-23 | 2020-05-29 | Rafko Voje | Večnamensko modularno hidravlično prijemalo s sinhronim in asinhronim delovanjem |
DE202021103928U1 (de) | 2021-07-23 | 2022-10-25 | Kinshofer Gmbh | Hydraulischer Schwenkantrieb für einen Greifer |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3049355A1 (de) * | 1980-12-29 | 1982-07-29 | Herbert 6370 Oberursel Oetzel | "durch ein fluid betaetigbarer stellantrieb" |
DE4030730A1 (de) * | 1990-09-28 | 1992-04-09 | Gerhard Kell | Mechanische bewegungseinheit zum umsetzen von medial getriebener linearer hubbewegung in umlaufende radialbewegung mittels hubkurvenelement |
DE19749848A1 (de) * | 1996-12-12 | 1998-09-03 | Kinshofer Greiftechnik | Zweischalengreifer |
DE20107206U1 (de) * | 2001-04-02 | 2002-08-08 | Kinshofer Greiftechnik | Antriebsvorrichtung für eine Greifeinrichtung |
US20040000811A1 (en) * | 2002-06-28 | 2004-01-01 | 1994 Weyer Family Limited Partnership | Timed rotation tool assembly and actuator |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US829279A (en) * | 1905-03-21 | 1906-08-21 | Bernard B Mears | Gas-engine. |
US2678519A (en) * | 1953-03-27 | 1954-05-18 | Emhart Mfg Co | Pneumatic control means for glass severing mechanism |
DE1864451U (de) * | 1960-06-03 | 1962-12-27 | Heinrich Baer | Hydraulisch betaetigter greifer. |
US3192783A (en) * | 1962-09-28 | 1965-07-06 | Robert C Cruzan | Engine |
FR2642840B1 (fr) * | 1989-02-09 | 1993-06-25 | Total Petroles | Procede et cellule de mesure des coefficients d'adherence et de frottement d'un fluide de forage |
JPH09273374A (ja) * | 1996-04-08 | 1997-10-21 | Hoei Sangyo Kk | アースドリル用掘削装置 |
US5651302A (en) * | 1996-07-11 | 1997-07-29 | Fabco Air, Inc. | Actuator pump |
-
2003
- 2003-12-11 DE DE20319227U patent/DE20319227U1/de not_active Expired - Lifetime
-
2004
- 2004-11-09 AT AT04026554T patent/ATE444407T1/de active
- 2004-11-09 EP EP04026554A patent/EP1541771B1/de not_active Not-in-force
- 2004-11-09 DK DK04026554T patent/DK1541771T3/da active
- 2004-11-09 PL PL04026554T patent/PL1541771T3/pl unknown
- 2004-11-09 DE DE502004010153T patent/DE502004010153D1/de active Active
- 2004-11-09 ES ES04026554T patent/ES2334227T3/es active Active
- 2004-12-03 NO NO20045313A patent/NO20045313L/no not_active Application Discontinuation
- 2004-12-09 KR KR1020040103427A patent/KR20050058207A/ko not_active Application Discontinuation
- 2004-12-09 CA CA002489610A patent/CA2489610A1/en not_active Abandoned
- 2004-12-09 JP JP2004356537A patent/JP4584694B2/ja not_active Expired - Fee Related
- 2004-12-13 US US11/010,702 patent/US7448312B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3049355A1 (de) * | 1980-12-29 | 1982-07-29 | Herbert 6370 Oberursel Oetzel | "durch ein fluid betaetigbarer stellantrieb" |
DE4030730A1 (de) * | 1990-09-28 | 1992-04-09 | Gerhard Kell | Mechanische bewegungseinheit zum umsetzen von medial getriebener linearer hubbewegung in umlaufende radialbewegung mittels hubkurvenelement |
DE19749848A1 (de) * | 1996-12-12 | 1998-09-03 | Kinshofer Greiftechnik | Zweischalengreifer |
DE20107206U1 (de) * | 2001-04-02 | 2002-08-08 | Kinshofer Greiftechnik | Antriebsvorrichtung für eine Greifeinrichtung |
US20040000811A1 (en) * | 2002-06-28 | 2004-01-01 | 1994 Weyer Family Limited Partnership | Timed rotation tool assembly and actuator |
WO2004003304A1 (en) * | 2002-06-28 | 2004-01-08 | 1994 Weyer Family Limited Partnership | Rotation tool and actuator |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20120163A1 (it) * | 2012-02-24 | 2013-08-25 | Cangini Benne Srl | Macchina operatrice provvista di un dispositivo di basculamento per un'attrezzatura |
Also Published As
Publication number | Publication date |
---|---|
DE502004010153D1 (de) | 2009-11-12 |
US20050158186A1 (en) | 2005-07-21 |
PL1541771T3 (pl) | 2010-02-26 |
NO20045313L (no) | 2005-06-13 |
DE20319227U1 (de) | 2005-04-21 |
ES2334227T3 (es) | 2010-03-08 |
ATE444407T1 (de) | 2009-10-15 |
US7448312B2 (en) | 2008-11-11 |
KR20050058207A (ko) | 2005-06-16 |
JP2005171754A (ja) | 2005-06-30 |
EP1541771B1 (de) | 2009-09-30 |
CA2489610A1 (en) | 2005-06-11 |
JP4584694B2 (ja) | 2010-11-24 |
DK1541771T3 (da) | 2009-11-23 |
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