EP0604971A1 - Appareil d'équilibrage pour lever et porter - Google Patents

Appareil d'équilibrage pour lever et porter Download PDF

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Publication number
EP0604971A1
EP0604971A1 EP93120998A EP93120998A EP0604971A1 EP 0604971 A1 EP0604971 A1 EP 0604971A1 EP 93120998 A EP93120998 A EP 93120998A EP 93120998 A EP93120998 A EP 93120998A EP 0604971 A1 EP0604971 A1 EP 0604971A1
Authority
EP
European Patent Office
Prior art keywords
carrying
lifting aid
force
rope
weight
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.)
Withdrawn
Application number
EP93120998A
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German (de)
English (en)
Inventor
Peter SCHÜLE
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0604971A1 publication Critical patent/EP0604971A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B66C23/02—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 with non-adjustable and non-inclinable jibs mounted solely for slewing movements
    • B66C23/022—Pivot axis common with column
    • 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
    • B66C23/04—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 with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible

Definitions

  • the invention relates to a carrying and lifting aid with weight compensation according to the preamble of claim 1.
  • a hoist for manually moving loads is known.
  • the load to be moved is reduced so far by a parallelogram boom that the load can be controlled manually by an operator acting next to the load.
  • the hoist designed as a parallelogram boom constantly regulates the load so that the weight is always set to a preset minimum value. Due to the constant adjustment, relatively large forces have to be applied by the operator in spite of the lifting aid to move the load, since the external force applied by the user is also corrected. Due to the rocking of the parallelogram boom, the hoist also needs a space that also poses a risk of injury to the user.
  • the invention has for its object to develop a carrying and lifting aid of the type mentioned in such a way that a natural working rhythm can be maintained and yet a cheap cable technology can be used.
  • the machine is only an aid and relieves at least partially the object to be moved, so that it can be moved effortlessly. This allows both the direction of movement and the speed of movement to be determined by the operator independently of the machine. As soon as the carrying and lifting aid detects a change in the forces acting on the object, readjustment takes place in such a way that the preset reduced weight is built up again. This leads to a movement in the direction of an externally acting force, so that the operator largely has the feeling that he is only moving this partial load. This enables the operator to maintain his personal working rhythm and the machine only acts as a support.
  • the lifting power of the carrying and lifting aid is individually matched to the load.
  • the weight can be reduced to a residual load component, which, for example, reduces a 100kg load to 2kg, so that this load initially remains in its rest position until the residual load and a force necessary for acceleration have been applied, but complete load balancing is also connected possible with a suspended state of the load.
  • the force required to accelerate must be applied by hand.
  • a basic lifting that is to say an excess of force, so that in this case a force must be applied by hand to lower it.
  • the device is supported on a stand. Counterweights can be provided there, but the device itself can also serve as a counterweight with the advantage that there is no relief when the load is removed. If an odd number of articulated arms is provided, the likelihood is reduced that all of the arms are currently in a dead center with all articulated arms fully extended, which would make movement more difficult and the use of the cable technology is supported by the possibility of a simple deflection.
  • aids can be provided, for example in the form of servo levers, which support acceleration and braking of the load (claim 8).
  • the drive and cable winch are also arranged on the base, so that the articulated arms can be reduced to a minimum even with sufficient dimensioning, and a force limitation to an acceptable weight can take place.
  • the resulting lightweight construction enables easy transportation of the carrying and lifting aid in a folded form, so that the carrying and lifting aid can also be used for smaller operations and in tight and inaccessible places.
  • the figure shows the carrying and lifting aid in a side view.
  • the carrying and lifting aid 10 is used to move objects 11.
  • objects can e.g. Be bricks that are assembled into masonry 17.
  • the carrying and lifting aid is essentially noticeable in the area of the vertical movements of the object, that is, where there is movement with or against the weight G of the object 11.
  • the object is raised and lowered via a motor drive which can be connected to the object via a pull cable 14.
  • a device 13 is provided which detects the weight of the object.
  • the device 13 for detecting the forces continuously detects the weight G during all movements and compares the weight determined thereby with an adjustable weight value. If the value has not yet been reached or has already been exceeded, the device 13 influences the motor drive for a movement which reduces the weight to this value.
  • the value is in a range that can also include full weight compensation of the load.
  • the control device works, for example, in that on the one hand it detects the angle of rotation of the cable winch 16 and evaluates this together with the cable force, for example.
  • a certain force corresponds to a certain elongation of the rope and thus a certain angle of rotation of the winch.
  • the control recognizes that a further increase in the rope force leads to a lifting of the object and at this moment switches to a control system in which only the rope force is included.
  • any change in the rope force immediately leads to a reaction of the device.
  • This enables the use of cable pull technology, which has not yet been used in the prior art for carrying and lifting aids. The operator has both hands free since there are no separate control elements or operating elements to be actuated to move the load, since the load is detected independently, so that the operator does not have to handle the counterweight.
  • the rope force can be detected, for example, by the device 13 for detecting the rope force comprising a movably mounted deflection wheel 15 which is arranged above the winch 16.
  • the device 13 for detecting the rope force comprising a movably mounted deflection wheel 15 which is arranged above the winch 16.
  • each movement of the bearing of the deflection wheel leads to a value which is detected by the device 13.
  • the carrying and lifting aid 10 now also no longer seesaws, since there is a departure from the known principle of a parallelogram boom.
  • a predeterminable range of movement of the articulated arms 10b can now be provided, which is preferably above the heads of the users. In this respect, the inertia forces of the parallelogram arm that occur when seesawing do not have to be overcome.
  • the carrying and lifting aid 10 comprises a base 10a, to which an odd number of articulated arms 10b are preferably articulated.
  • the odd number of articulated arms means that it is almost impossible for all articulated arms 10b to be at top dead center, that is to say they are oriented directly in the same direction, so that additional forces are exerted in the case of a movement, for example, to the left in the figure to move the articulated arms against each other.
  • the odd number of articulated arms also enables a sensible cable guidance in a simple manner, in each case by means of two deflection wheels per articulated arm, without a separate deflection on the last arm being necessary.
  • the pull cable 14 is preferably guided through the center points of the joints 10c arranged between the joint arms.
  • Both the motor drive 12 with the device for detecting the weight 13 and a cable winch 16 are located on the stand 10a.
  • the arrangement of these parts on the stand means that these elements do not have to be additionally moved when the load is moved transversely. However, this can also reduce the inertia forces caused by the carrying and lifting aid itself.
  • This purpose is also served by a different length of the articulated arms 10b, the length of which decreases with increasing distance from the base, so that the longest least movable arm, which is provided with the greatest inertia, is arranged on the base.
  • the carrying and lifting aid can be provided with aids which, for example in the form of a lever, provide auxiliary workers who assist in accelerating and braking the object.
  • the weight G must be absorbed in some form by the carrying and lifting aid.
  • the device itself can be so heavy that it applies the appropriate forces. However, this complicates the transportation and movement of the entire device.
  • the device can of course also be attached in some form to its place of use in an easily detachable manner and, if necessary, equipped with counterweights.
  • all options are available for regulation or control, starting with an insensitive manual control via an electrical or electronic control or regulation to computer-aided regulation.
  • the carrying and lifting aid is also accessible to automation, since only a weight must be recorded. If the device is then additionally entered at which point the loads are to be deposited, sequence cycles can be implemented, for example, by means of a numerically controlled control (CNC control).
  • CNC control numerically controlled control

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
  • Control And Safety Of Cranes (AREA)
EP93120998A 1992-12-28 1993-12-28 Appareil d'équilibrage pour lever et porter Withdrawn EP0604971A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924244290 DE4244290C2 (de) 1992-12-28 1992-12-28 Hebe- und Umsetzhilfe mit Gewichtskraftausgleich
DE4244290 1992-12-28

Publications (1)

Publication Number Publication Date
EP0604971A1 true EP0604971A1 (fr) 1994-07-06

Family

ID=6476680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93120998A Withdrawn EP0604971A1 (fr) 1992-12-28 1993-12-28 Appareil d'équilibrage pour lever et porter

Country Status (2)

Country Link
EP (1) EP0604971A1 (fr)
DE (1) DE4244290C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0733579A1 (fr) * 1995-03-20 1996-09-25 Enzo Scaglia Dispositif de manutention d'une charge
IT202100020654A1 (it) * 2021-07-30 2023-01-30 Gilberto Righetti Manipolatore o sistema di sollevamento e trasporto di carichi in un magazzino o in un’area.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113148844A (zh) * 2021-05-26 2021-07-23 深圳市瑞河科技有限公司 一种用于缆绳吊装平衡的自动检测及调节控制系统

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE138583C (fr) *
FR1365378A (fr) * 1963-05-14 1964-07-03 Potence à bras articulés orientables dans un plan horizontal
GB1061307A (en) * 1966-01-22 1967-03-08 Carl Erling Mennerdahl Improved hoisting crane
GB1343750A (en) * 1971-08-12 1974-01-16 Peterson E A Towing winch
DE3222381A1 (de) * 1981-06-16 1983-01-05 Verenigde Bedrijven Bredero N.V., Utrecht Hubvorrichtung zur herstellung von mauerwerk
DE3204885A1 (de) * 1981-07-15 1983-02-03 Fa. Johannes Fuchs, 7257 Ditzingen Hebezeug zum manuellen bewegen von lasten
US4412775A (en) * 1982-03-10 1983-11-01 Multifold-International, Inc. Vacuum assisted machine for handling articles
FR2543124A2 (fr) * 1983-03-23 1984-09-28 Zimmerman D W Mfg Appareil a actionnement fluidique, pour la manutention de charges
US4726732A (en) * 1985-03-15 1988-02-23 Mitsubishi Denki Kabushiki Kaisha Conveying apparatus for ceiling-suspended industrial robot
EP0428724A1 (fr) * 1989-05-11 1991-05-29 Kabushiki Kaisha Komatsu Seisakusho Appareil de manutention de marchandises a balancier et procede de commande d'un tel appareil
DE9114808U1 (fr) * 1991-11-28 1992-02-13 Schoch, Rolf
DE9211890U1 (fr) * 1992-09-03 1992-11-05 Rupprecht, Richard, 8560 Lauf, De

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880393A (en) * 1973-06-04 1975-04-29 Conco Inc Load balancer with balance override control
DE8803290U1 (fr) * 1988-03-11 1988-04-28 Baeder, Wilfried, 7305 Altbach, De
DE9107947U1 (fr) * 1991-06-25 1992-08-06 Stroedter Handhabungstechnik Gmbh, 4777 Welver, De

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE138583C (fr) *
FR1365378A (fr) * 1963-05-14 1964-07-03 Potence à bras articulés orientables dans un plan horizontal
GB1061307A (en) * 1966-01-22 1967-03-08 Carl Erling Mennerdahl Improved hoisting crane
GB1343750A (en) * 1971-08-12 1974-01-16 Peterson E A Towing winch
DE3222381A1 (de) * 1981-06-16 1983-01-05 Verenigde Bedrijven Bredero N.V., Utrecht Hubvorrichtung zur herstellung von mauerwerk
DE3204885A1 (de) * 1981-07-15 1983-02-03 Fa. Johannes Fuchs, 7257 Ditzingen Hebezeug zum manuellen bewegen von lasten
US4412775A (en) * 1982-03-10 1983-11-01 Multifold-International, Inc. Vacuum assisted machine for handling articles
FR2543124A2 (fr) * 1983-03-23 1984-09-28 Zimmerman D W Mfg Appareil a actionnement fluidique, pour la manutention de charges
US4726732A (en) * 1985-03-15 1988-02-23 Mitsubishi Denki Kabushiki Kaisha Conveying apparatus for ceiling-suspended industrial robot
EP0428724A1 (fr) * 1989-05-11 1991-05-29 Kabushiki Kaisha Komatsu Seisakusho Appareil de manutention de marchandises a balancier et procede de commande d'un tel appareil
DE9114808U1 (fr) * 1991-11-28 1992-02-13 Schoch, Rolf
DE9211890U1 (fr) * 1992-09-03 1992-11-05 Rupprecht, Richard, 8560 Lauf, De

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0733579A1 (fr) * 1995-03-20 1996-09-25 Enzo Scaglia Dispositif de manutention d'une charge
IT202100020654A1 (it) * 2021-07-30 2023-01-30 Gilberto Righetti Manipolatore o sistema di sollevamento e trasporto di carichi in un magazzino o in un’area.

Also Published As

Publication number Publication date
DE4244290C2 (de) 1997-04-10
DE4244290A1 (de) 1994-06-30

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