EP4023585A1 - Hubvorrichtung mit doppelter einscherung und drehverriegelungsmechanismus - Google Patents

Hubvorrichtung mit doppelter einscherung und drehverriegelungsmechanismus Download PDF

Info

Publication number
EP4023585A1
EP4023585A1 EP21196986.0A EP21196986A EP4023585A1 EP 4023585 A1 EP4023585 A1 EP 4023585A1 EP 21196986 A EP21196986 A EP 21196986A EP 4023585 A1 EP4023585 A1 EP 4023585A1
Authority
EP
European Patent Office
Prior art keywords
bolt
sliding
rotation
double
reeving
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
Application number
EP21196986.0A
Other languages
English (en)
French (fr)
Other versions
EP4023585B1 (de
Inventor
Jonathan CHALAVON
Adrien GOURRU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manitowoc Crane Group France SAS
Original Assignee
Manitowoc Crane Group France SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Manitowoc Crane Group France SAS filed Critical Manitowoc Crane Group France SAS
Publication of EP4023585A1 publication Critical patent/EP4023585A1/de
Application granted granted Critical
Publication of EP4023585B1 publication Critical patent/EP4023585B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
    • B66D3/043—Block and tackle system with variable number of cable parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/88—Safety gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
    • B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley

Definitions

  • the invention relates to a double-reeving lifting device for a lifting machine, as well as to a lifting machine and a lifting method associated therewith.
  • the invention finds a favorite, and non-limiting, application for a lifting device such as a crane, and in particular a tower crane.
  • a double-reeving lifting device is configurable reversibly between two reeving configurations including a single reeving configuration with two lifting strands and a double-reeving configuration with four lifting strands, where the double-reeving lifting device comprises a system reeving changeover allowing a change of reeving between the single reeving configuration and the double reeving configuration.
  • the bottom block is suspended on the hoisting gear by a hoist rope connected with a hoist winch to raise/lower the bottom block, and this hoist rope passes through the top block, so that the connected configuration and the disconnected configuration correspond respectively to a double reeving configuration and a single reeving configuration, or vice versa, of the double reeving lifting device, depending on the passage of the lifting cable at the level of the upper block.
  • documents FR 1 520 612 , FR 2 137 333 , FR 2 368 431 , FR 2 131 924 , FR 2 228 024 describe double-reeving lifting devices in in which the connected configuration corresponds to the double haul configuration, and the disconnected configuration corresponds to the single haul configuration; the lifting cable passing below a pulley carried by the upper block.
  • the documents UK 2,176,456 , FR 2 333 743 , FROM 31 49 690 , OF 35 43 214 describe double reeving lifting devices in which the connected configuration corresponds to the single reeving configuration, and the disconnected configuration corresponds to the double reeving configuration; the lifting cable passing over a pulley carried by the upper block.
  • the object of the present invention is to at least partially solve the aforementioned drawbacks, by proposing a lifting device with double reeving equipped with reversible connection means that are robust and reliable over time, and which does not need a fixed part. on the jib to be able to operate a change of block, so that it is possible to operate such a change of block regardless of the span or location of the lower block along the jib.
  • Another object of the invention is to provide reversible connection means equipped with a locking mechanism with moving parts mounted only on one of the two muffles, the other muffle not comprising any moving parts for connection/disconnection of the two muffles, which is advantageous in terms of maintenance and reliability
  • Another object of the invention is to reduce the bulk of the lifting device, in particular in the double-reeving configuration, in order to increase the capacity for movement along the jib.
  • Another object of the invention is to propose a lifting device with double reeving making it possible to pass automatically, without manual intervention, from the double reeving configuration to the single reeving configuration, and vice versa, in a reliable, rapid and repeated manner over time. .
  • the invention proposes reversible connection means which are shaped to convert movements of raising/lowering of the lower muffle (movements of vertical translation) into movements of rotation of the bolt, which will make it possible to connect/disconnect the two blocks easily, and this in a secure and reliable way because few moving parts are necessary, only the bolt being mobile, and also which allows to operate a kinematics of change of block only thanks to the lifting movement allowing the raising/lowering of the lower block.
  • the bolt passes from a locking state to an unlocking state by performing a locking rotation, and passes from an unlocking state to a locking state by performing an unlocking rotation, where it is the raising/lowering of the lower block which will allow the bolt to rotate.
  • connection/disconnection phases can be automated easily, since it suffices to control the raising/lowering movements of the lower block (by simply controlling the lifting movement, such as by controlling the motorized system of the lifting winch ) to switch from a disconnected configuration to a connected configuration, and vice versa.
  • the invention makes it possible to change the haul system without the need for a part fixed to the jib, because the reversible connection means are integrated into the two blocks, thus making it possible to operate a change of haul system on the entire span of the arrow.
  • the complementary locking structure comprises a retainer against which the bolt can come into abutment during a relative approach between the two blocks for sliding of the bolt in a first sliding direction
  • the locking mechanism comprises a elastic constraint element, such as for example a spring, urging the bolt to slide in a second sliding direction, opposite to the first sliding direction
  • the guide elements comprise complementary guide elements provided on the locking mechanism to cooperate in sliding support in order to convert a sliding of the bolt in the first direction of sliding into a first concomitant rotation of the bolt, and a sliding of the bolt in the second direction of sliding in a second concomitant rotation of the bolt.
  • the locking rotation breaks down into a combination of the first rotation and the second rotation
  • the unlocking rotation also breaks down into a combination of the first rotation and the second rotation
  • the locking rotation takes place in a single rotation, and likewise the unlocking rotation also takes place in a single rotation.
  • the first rotation and the second rotation take place in the same direction of rotation.
  • the first rotation and the second rotation take place in opposite directions of rotation.
  • a succession of the first rotation and of the second rotation leads to an overall rotation of the bolt according to an overall angular amplitude which is equivalent to 90 degrees or to 90 degrees plus N times 180 degrees, N being a non-zero integer .
  • a sequence of the first rotation then of the second rotation leads to a 90 degree pivoting of the bolt, or 270 degrees, ..., so that the bolt is at right angles.
  • the first rotation takes place according to a first angular amplitude and the second rotation takes place according to a second angular amplitude, where the first angular amplitude and the second angular amplitude are each equivalent to 45 degrees.
  • the combination of the first angular amplitude and the second angular amplitude leads to an overall angular amplitude which is equivalent to 90 degrees or to 90 degrees plus N times 180 degrees, N being a non-zero integer.
  • the locking housing has a bottom wall in which an opening is made for the passage of the free end of the spindle and its stopper, this opening being delimited by a perimeter forming the retainer.
  • the assembly forming a striker comprises at least one side flange delimiting the locking housing and in which the striker orifice is provided.
  • the side flange extends parallel to the main axis.
  • the bolt comprises two locking fingers, diametrically opposed along the main axis
  • the assembly forming a striker comprises two side plates facing each other, arranged on either side of the retainer, and in which are provided two respective striker holes facing each other.
  • the outer sleeve protects the inner part and including the distal and proximal guide elements.
  • the at least one locking finger is fixed to the internal part and passes through the external sleeve.
  • the locking finger or fingers is or are fixed to the internal part and cross(es) the external sleeve.
  • the at least one proximal guide element comprises several proximal ramps distributed successively around the main axis on the proximal end of the bolt, and the at least one complementary proximal guide element comprises one or more pins protruding radially on the spindle in order to come into sliding support on one of the proximal ramps.
  • the at least one distal guide element comprises several distal ramps distributed successively around the main axis on the proximal end of the bolt, and the at least one complementary distal guide element comprises one or more distal pins in radial projection on the pin in order to come into sliding support on one of the distal ramps.
  • the proximal ramps and the distal ramps are inclined in opposite directions around the main axis, so that the first rotation and the second rotation of the bolt take place in the same direction of rotation, during the conversions of the slides of the bolt according respectively to the first direction of sliding and the second direction of sliding.
  • the at least one locking finger extends orthogonally to the main axis
  • the at least one striker hole comprises a first oblong section in a direction perpendicular to the main axis and perpendicular to the finger lock in lock state.
  • Such a first oblong section favors the angular displacement of the locking finger(s).
  • the at least one striker orifice comprises a second oblong section in a direction parallel to the main axis, placed in the middle of the first oblong section.
  • Such a second oblong section makes it possible to follow the bolt, and therefore the locking finger or fingers, during the sliding of the bolt.
  • the lifting device comprises a distributor carriage movably mounted on the jib and connected to a distribution system capable of moving the distributor carriage along the jib in a forward direction and an opposite rear direction, and in which the lower block is suspended on said dispensing carriage by the lifting cable.
  • the movements of the lower muffle, in the connection phase and in the disconnection phase are automated.
  • the movements of the lower muffle are controlled at reduced speed, below a predefined speed threshold.
  • a double reeving lifting device 1 for a lifting machine, such as for example a crane, which has a jib (not shown) and a distributor carriage 9 movably mounted on the jib and connected to a system distribution capable of moving the dispensing carriage 9 along the arrow in a forward direction and an opposite rear direction; this distribution system being for example a distribution winch which cooperates with a distribution cable for the displacement of the distribution carriage 9.
  • the lower block 3 supports lower cable return means, such as two pulleys 31, for the passage of the lifting cable
  • the upper block 4 supports upper cable return means, such as by a pulley 41, for the passage of the lifting cable.
  • the double-reeving lifting device 1 is shaped to raise/lower a load along the jib of the lifting device.
  • the connected configuration and the configuration disconnected respectively correspond to a double reeving configuration and a single reeving configuration, or vice versa, of the double reeving lifting device 1; the single haul configuration being associated with support for the hook 30 (and therefore the load) by two lifting strands of the hoisting cable, and the double haul configuration being associated with support for the hook 30 (and therefore the load) by four lifting strands of the lifting cable.
  • the upper block 4 supports, in the upper part, an upper stop 43 adapted to come into abutment against the distributor carriage 9, when the upper block 4 is in high stop on the jib, alone without the lower block 3.
  • an upper stop 43 adapted to come into abutment against the distributor carriage 9, when the upper block 4 is in high stop on the jib, alone without the lower block 3.
  • the reversible connection means comprise a locking mechanism 5 mounted on the lower block 3, and a complementary locking structure 6 mounted on the upper block 4 and capable of cooperating with the locking mechanism 5.
  • the complementary locking structure 6 is part of the lower block 3 and is provided above the lower cable return means, therefore above the two pulleys 31 in the example shown.
  • This complementary locking structure 6 comprises a frame 60 having two facing walls 61 (only one wall 61 is visible in Figure 8 ) and in which is provided a locking housing 62 open on the top of the lower block 3, facing the upper block 4. It should be noted that the two pulleys 31 are mounted between the walls 61.
  • the locking housing 62 is in the form of an elongated groove along the main axis (therefore along a vertical direction), opening onto an upper rim 63 of the frame 60.
  • This frame 60 comprises an assembly forming a striker provided with two side flanges 64 facing each other, extending parallel to the main axis (therefore in a vertical direction) and orthogonal to the walls 61, where these two side flanges 64 delimit the locking housing 62 laterally. Striker orifices 65 are made facing each other in the respective side flanges 64, so that this assembly forming a striker has two striker orifices 65 facing each other.
  • This frame 60 also comprises a bottom wall 66 in which is made an opening 67 delimited by a perimeter forming a retainer 68.
  • This bottom wall 66 extends between the two side flanges 64, orthogonal to the axis major. Thus, the two side flanges 64 are arranged on either side of this retainer 68.
  • Each striker hole 65 has the general shape of an upside-down "T", and comprises a first oblong section 651 in a direction perpendicular to the main axis, and a second oblong section 652 in a direction parallel to the main axis. , disposed in the middle of the first oblong section 651; where this second oblong section 652 extends upwards (towards the upper block 4) from the middle of the first oblong section 651.
  • the bolt 52 has a distal end 521 facing the stopper 51, and a proximal end 522 opposite the distal end 521.
  • the elastic constraint element 53 is in the form of a spring mounted around the pin 50 and coming to bear on this proximal end 522 of the bolt 52 to urge it to slide in the direction of the stopper 51 according to a direction of sliding called hereafter the second direction of sliding (sliding downwards in the example shown).
  • the bolt 52 comprises an internal part 54 of cylindrical shape, mounted around the spindle 50 and able to slide along the spindle 50 and to rotate around the spindle 50.
  • This internal part 54 supports two locking fingers 55 s' extending transversely to the main axis, and more precisely orthogonal to the main axis.
  • the two locking fingers 55 are diametrically opposed along the main axis.
  • the bolt 52 also includes an outer sleeve 56 which surrounds the inner part 54, where the two locking fingers 55 pass through the outer sleeve 56 to protrude externally from this outer sleeve 56.
  • the elastic constraint element 53 bears on this outer sleeve 56, via a cap 560.
  • Each of the two locking fingers 55 can be formed of a rod passing through both the outer sleeve 56 and the internal part 54, without engaging in the pin 50 so as not to interfere with the sliding and rotation of the bolt 52 around the pin 50.
  • the assembly comprising the pin 50 and the bolt 52 is adapted to engage inside the locking housing 62 of the complementary locking structure 6 during a relative ruzement between the two blocks 3, 4, until the stopper 51 engages inside the opening 67 provided in the bottom wall 66 and then the distal end 521 of the bolt 52 comes into abutment against the periphery of the opening forming the retainer 68 and thus the bolt 52 slides in a first direction of sliding (sliding upwards in the example shown) under the effect of the thrust exerted by the retainer 68.
  • the opening 67 is dimensioned for the passage of the free end of the pin 50 and its stopper 51.
  • the shapes, dimensions and positions of the proximal ramps 57, the distal ramps 58, the proximal pins 570 and the distal pins 580 are such that the first rotation and the second rotation take place in the same direction of rotation , and that the first rotation takes place according to a first angular amplitude of 45 degrees and the second rotation takes place according to a second angular amplitude of 45 degrees. Also, a succession of the first rotation and the second rotation leads to an overall rotation of the bolt 52 according to an overall angular amplitude which is equivalent to 90 degrees.
  • proximal ramps 57 and the distal ramps 58 are inclined in opposite directions around the main axis, so that the first rotation and the second rotation of the bolt 52 take place in the same direction of rotation. Furthermore, the proximal ramps 57 and the distal ramps 58 each define sawtooth profiles on the respective proximal and distal peripheral edges of the internal part 54, with peaks (in the form of a point) and bottoms.
  • the locking fingers 55 extend parallel to the side flanges 64, so that the assembly comprising the pin 50 and the bolt 52 can engage inside the locking housing 62 (when of a relative approach between the two muffles 3, 4), and conversely can disengage from the locking housing 62 (during a relative distance between the two muffles 3, 4), without the locking fingers 55 coming into contact against the side plates 64.
  • the lock fingers 55 In the locked state, the lock fingers 55 have rotated 90 degrees around the main axis, compared to the unlocked state, so that the lock fingers 55 can engage through the striker holes 65 concerned which are provided in the side flanges 64.
  • the complementary guide elements (proximal ramps 57, distal ramps 58, proximal pins 570 and distal pins 580), as well as the stopper 68 and the elastic constraining element 53 form respective guide elements together to convert an approach relative and a relative distance between the two blocks 3, 4, in concomitant sliding and rotation of the bolt 52, to cause this bolt 52 to pass from a locked state to an unlocked state, and vice versa, and therefore to pass from a connected configuration to a disconnected configuration, and vice versa.
  • the locking mechanism 5 also comprises two split walls 59, arranged on either side of the pin 50, which each have an open slot on the underside (opposite the lower block 3), with a flared mouth 590 adapted to that the frame 60 engages inside the slots of these split walls 59 during a relative approach between the two muffles 3, 4 (as visible in Picture 10 ), thus promoting centering of the pin 50 and the bolt 52 with the locking housing 62 of the complementary locking structure 6.
  • connection phase for switching from the disconnected configuration to the connected configuration, with reference to the Figures 9 to 15 .
  • the upper block 4 is suspended above the lower block 3, with the lower block 4 in high abutment on the jib.
  • the bolt 52 is in its unlocked state, under the action of the elastic constraint element 53, with the distal pins 580 which are at the bottom of the distal ramps 58, and with the proximal pins 570 which are distance and face of the tops of the proximal ramps 57 (as visible on the Figure 6 and 7 ).
  • the lower muffle 3 begins by being raised, as shown schematically by the arrow MO, for a relative rimpedement between the two muffles 3, 4, until the stopper 51 engages inside the opening 67 provided in the bottom wall 66 (as visible on the Picture 10 ) and then the distal end 521 of the bolt 52 comes into abutment against the periphery of the opening 67 forming the retainer 68 and thus the bolt 52 slides in the first direction of sliding (sliding upwards in the illustrated example) under the effect of the thrust exerted by the retainer 68.
  • the distal ramps 58 leave contact with the distal pins 580, and on the other hand the proximal ramps 57 come into contact with the proximal pins 570, thus causing the bolt 52 to pivot. according to the first 45 degree rotation, as well as visible on the Figure 11 and 12 .
  • the proximal pins 570 are at the bottom of the proximal ramps 57 and the distal pins 580 are away from and in front of the tops of the distal ramps 58.
  • the lower block 3 is then moved downwards, as shown schematically by the arrow DE, so that the retainer 68 descends with the lower block 68, which allows the elastic constraint element 53 to cause the bolt 52 to slide in the second sliding direction (downward sliding in the example shown).
  • the proximal ramps 57 leave contact with the proximal pins 570, and on the other hand the distal ramps 58 come into contact with the distal pins 580, thus causing the bolt 52 to pivot.
  • the distal pins 580 are at the bottom of the distal ramps 58 and the proximal pins 570 are distant and opposite the tops of the proximal ramps 57 (as shown in Figure 5 ), and also the locking fingers 55 are engaged inside the first oblong sections 651 of the respective striker holes 65; the bolt 52 then being in its locking state.
  • the lower block 3 continues to be moved downwards, as shown schematically by the arrow DE, until also the locking fingers 55 are engaged inside the second oblong sections 652 of the respective striker holes 65, and thus the lower block 3 and the upper block 4 are connected, and then the lower block 3 can continue to descend with the upper block 4 in the connected configuration.
  • connection phase for switching from the connected configuration to the disconnected configuration.
  • the lower block 3 is first mounted (with the upper block 4), until the upper block 4 is at the top stop on the jib, and more specifically until that the upper stop 43 of the upper block 4 is in abutment against the distributor carriage 9, with its upper stop 43 engaged in the slot 90 provided on the underside of the distributor carriage 9.
  • the bolt 52 is in its locked state, with the locking fingers 55 which are engaged inside the second oblong sections 652 of the respective striker holes 65.
  • the lower block 3 continues to rise, while the upper block 4 is blocked, so that the locking fingers 55 reach the first oblong sections 651 of the respective striker holes 65, that then the stopper 51 engages inside the opening 67 provided in the bottom wall 66 and then the distal end 521 of the bolt 52 comes into abutment against the periphery of the opening forming the retainer 68 and thus the bolt 52 slides in the first direction of sliding (upward sliding in the example shown) under the effect of the thrust exerted by the retainer 68.
  • This sliding of the bolt 52 in the first direction of sliding leads to the first rotation of the bolt 52 by 45 degrees, as already described by the sliding contact between the proximal ramps 57 and the proximal pins 570.
  • the lower block 3 is moved downwards, so that the retainer 68 descends with the lower block 68, which allows the elastic constraint element 53 to cause the bolt 52 to slide in the second direction of sliding.
  • the locking fingers 55 At the end of these two 45 degree rotations, the locking fingers 55 have pivoted 90 degrees and are completely disengaged from the respective striker holes 65; the bolt 52 then being in its unlocked state.
  • the lower block 3 and the upper block 4 are disconnected, and then the lower block 3 can continue to descend alone in the disconnected configuration, without the upper block 4 which remains at the level of the distributor carriage 9.
  • connection phase in the connection phase and in the disconnection phase, only the control of the raising/lowering movements of the lower muffle 3 makes it possible to pass from a connected configuration to the disconnected configuration, and vice versa.
  • the control of the up/down movements of the lower block 3 takes place by controlling the lifting winch.
  • connection and disconnection phases it is advantageous to automate the movements of the lower block 3, in the connection phase and in the disconnection phase, by means of a control/command unit which controls the lifting winch.
  • a control/command unit which controls the lifting winch.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Jib Cranes (AREA)
  • Earth Drilling (AREA)
  • Combined Means For Separation Of Solids (AREA)
EP21196986.0A 2020-09-17 2021-09-15 Hubvorrichtung mit doppelter einscherung und drehverriegelungsmechanismus Active EP4023585B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2009401A FR3114089B1 (fr) 2020-09-17 2020-09-17 Dispositif de levage à double mouflage avec mécanisme de verrouillage rotatif

Publications (2)

Publication Number Publication Date
EP4023585A1 true EP4023585A1 (de) 2022-07-06
EP4023585B1 EP4023585B1 (de) 2023-11-29

Family

ID=73139033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21196986.0A Active EP4023585B1 (de) 2020-09-17 2021-09-15 Hubvorrichtung mit doppelter einscherung und drehverriegelungsmechanismus

Country Status (5)

Country Link
US (1) US11866309B2 (de)
EP (1) EP4023585B1 (de)
CN (1) CN114195027A (de)
FR (1) FR3114089B1 (de)
PT (1) PT4023585T (de)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306469A (en) * 1965-06-22 1967-02-28 Richier Sa Load hoisting tackle
FR1520612A (fr) 1967-02-22 1968-04-12 Potain & Cie Ets F Dispositif pour augmenter la charge et la portée maxima d'une flèche de grue distributrice
FR2131924A1 (de) 1971-04-05 1972-11-17 Kroll As F
FR2137333A1 (de) 1971-05-12 1972-12-29 Potain Sa
FR2228024A1 (en) 1973-05-02 1974-11-29 Richier Sa Changeover for tower crane lifting hook - latch changes four strand pulley system to two strand
FR2333743A1 (fr) 1975-12-01 1977-07-01 Pingon Manubat Sa Chariot distributeur pour appareils de levage
FR2368431A1 (fr) 1976-10-22 1978-05-19 Potain Sa Double mouflage automatique pour le chariot distributeur d'une grue a tour
DE3149690A1 (de) 1981-12-15 1983-06-23 Liebherr-Werk Biberach Gmbh, 7950 Biberach Vorrichtung zum umscheren des hubseils bei kranen
DE3543214A1 (de) 1985-06-13 1986-12-18 Liebherr-Werk Bischofshofen GmbH, Bischofshofen Vorrichtung zum umscheren der durch ein seil mit der laufkatze eines krans verbundenen unterflasche des kranhakens
GB2176456A (en) 1985-04-26 1986-12-31 Man Wolffkran Apparatus for changing over the operation of the lifting cable in a crane

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2805875A (en) * 1953-09-08 1957-09-10 Interlock Corp Self-locking mechanical coupling assembly
US2973942A (en) * 1958-08-18 1961-03-07 Morgan Engineering Co Multiple hoist apparatus
US3280439A (en) * 1964-04-16 1966-10-25 Norco Inc Mechanical coupling
DE2114418A1 (de) * 1971-03-25 1972-10-05 Wetzel Kg Vorrichtung zum Umrüsten von Kränen auf Mehrseilbetrieb
DE2845874C2 (de) 1978-10-21 1982-03-25 Elba Maschinenfabrik Kaiser GmbH & Co, 6670 St Ingbert Vorrichtung zum Umscheren des Hubseiles bei Kränen
FR2627242A2 (fr) * 1987-07-20 1989-08-18 Ecia Equip Composants Ind Auto Liaison rapide entre deux arbres ou analogues
FR2628488B1 (fr) * 1988-03-14 1990-12-28 Ecia Equip Composants Ind Auto Attache rapide du type a baionnette perfectionnee
ITMI20101302A1 (it) * 2010-07-15 2012-01-16 F B F Lli Butti S R L Dispositivo per variare automaticamente il sistema di taglia in apparecchi sollevatori, particolarmente per gru a torre.
FR3061164B1 (fr) * 2016-12-23 2019-05-24 Manitowoc Crane Group France Grue de levage comprenant un dispositif de levage a double mouflage

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306469A (en) * 1965-06-22 1967-02-28 Richier Sa Load hoisting tackle
FR1520612A (fr) 1967-02-22 1968-04-12 Potain & Cie Ets F Dispositif pour augmenter la charge et la portée maxima d'une flèche de grue distributrice
FR2131924A1 (de) 1971-04-05 1972-11-17 Kroll As F
FR2137333A1 (de) 1971-05-12 1972-12-29 Potain Sa
FR2228024A1 (en) 1973-05-02 1974-11-29 Richier Sa Changeover for tower crane lifting hook - latch changes four strand pulley system to two strand
FR2333743A1 (fr) 1975-12-01 1977-07-01 Pingon Manubat Sa Chariot distributeur pour appareils de levage
FR2368431A1 (fr) 1976-10-22 1978-05-19 Potain Sa Double mouflage automatique pour le chariot distributeur d'une grue a tour
DE3149690A1 (de) 1981-12-15 1983-06-23 Liebherr-Werk Biberach Gmbh, 7950 Biberach Vorrichtung zum umscheren des hubseils bei kranen
GB2176456A (en) 1985-04-26 1986-12-31 Man Wolffkran Apparatus for changing over the operation of the lifting cable in a crane
DE3543214A1 (de) 1985-06-13 1986-12-18 Liebherr-Werk Bischofshofen GmbH, Bischofshofen Vorrichtung zum umscheren der durch ein seil mit der laufkatze eines krans verbundenen unterflasche des kranhakens

Also Published As

Publication number Publication date
US11866309B2 (en) 2024-01-09
FR3114089B1 (fr) 2022-08-19
EP4023585B1 (de) 2023-11-29
CN114195027A (zh) 2022-03-18
FR3114089A1 (fr) 2022-03-18
PT4023585T (pt) 2024-02-01
US20220081266A1 (en) 2022-03-17

Similar Documents

Publication Publication Date Title
EP4049960B1 (de) Hubvorrichtung mit doppelter einscherung und drehverriegelungsmechanismus mit schnappschloss
FR2859675A1 (fr) Chariot transporteur comportant une ouverture laterale du chassis equipe d'une porte a double charniere
EP4023585B1 (de) Hubvorrichtung mit doppelter einscherung und drehverriegelungsmechanismus
EP2211001B1 (de) Schalung zum Giessen von einer Betonmauer, Anordnung von miteinander verknüpften Schalungen
EP2878551A1 (de) Vorrichtung zum seitlichen Abdecken/Aufdecken eines Containers, Fahrzeug und Container damit
EP4273085B1 (de) Doppelblasheber mit verbessertem verriegelungsmechanismus
EP1953112B1 (de) Hubgerät
EP1638797A1 (de) Kofferraumhaube mit verriegelung mit konstanter auflagekraft sowie damit ausgestattetes fahrzeug
EP2025818B1 (de) Abdeckanordnung
EP4049959B1 (de) Verfahren zur sicherung eines kippbaren auslegerkrans, um die winkelposition des kippbaren auslegers abzusichern
EP2109575A2 (de) Vorrichtung zur lagerung von objekten auf einer mobilen palette
EP3815969B1 (de) Rohrreinigungsfahrzeug, das einen optimierten speichertank umfasst
FR2955135A1 (fr) Mat articule extensible a charniere demontable
EP1091046A1 (de) Verschlusseinrichtung eines Manlochs bzw. eines Inspektionschachtes
FR2930536A1 (fr) Potence mobile de chantier
EP2010720B1 (de) Vorrichtung zur verbindung eines werkzeugs mit dem ausleger einer maschine, wie zum beispiel einem hydraulikbagger
EP2517913B1 (de) Mechanisiertes Planensystem für Kipper, Kipper mit Planensystem
FR2462379A1 (fr) Grue a tour tournant dans le haut
FR2497161A1 (fr) Vehicule utilitaire a carrosserie interchangeable verrouillable coulissante
FR3139561A1 (fr) Engin de levage avec changement de mouflage automatisé
FR2733213A1 (fr) Conteneur a trappe de vidange deverrouillable notamment pour la collecte de dechets
FR3024740A1 (fr) Dispositif de montage rapide d'un outil sur le bras d'une machine
WO2010146286A2 (fr) Système de verrouillage d'une barre escamotable de toit
FR2716177A1 (fr) Dispositif de verrouillage/déverrouillage de l'ouverture d'un conteneur.
FR2624109A1 (fr) Conteneur comportant une trappe de vidange a mecanisme de verrouillage/deverrouillage perfectionne

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20221207

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230619

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602021007238

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20231123

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Ref document number: 4023585

Country of ref document: PT

Date of ref document: 20240201

Kind code of ref document: T

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20240126

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20231129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240329

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240329

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240301

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240229

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1635943

Country of ref document: AT

Kind code of ref document: T

Effective date: 20231129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240229

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602021007238

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240918

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20240905

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240925

Year of fee payment: 4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231129