EP3378822A1 - Dispositif de levage - Google Patents

Dispositif de levage Download PDF

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Publication number
EP3378822A1
EP3378822A1 EP18162325.7A EP18162325A EP3378822A1 EP 3378822 A1 EP3378822 A1 EP 3378822A1 EP 18162325 A EP18162325 A EP 18162325A EP 3378822 A1 EP3378822 A1 EP 3378822A1
Authority
EP
European Patent Office
Prior art keywords
lifting device
lifting
control part
receiving space
abutment
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
EP18162325.7A
Other languages
German (de)
English (en)
Other versions
EP3378822B1 (fr
Inventor
Torsten Soonberg
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.)
Carl Stahl GmbH
Original Assignee
Carl Stahl GmbH
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 Carl Stahl GmbH filed Critical Carl Stahl GmbH
Publication of EP3378822A1 publication Critical patent/EP3378822A1/fr
Application granted granted Critical
Publication of EP3378822B1 publication Critical patent/EP3378822B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks
    • B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads

Definitions

  • the invention relates to a lifting device for lifting, transporting and depositing loads with a housing having two lifting arms which delimit between them at least one side open load receiving space and each having an abutment against which a locking member in its latched position is supported with the respective abutment, which is guided in its dissolved position by means of an actuating device about a pivot axis rotatably movable.
  • Such a generic lifting device is for example off DE 20 2006 019 490 U1 known.
  • the known lifting device is a load hanger for lifting a load, with at least one, hinged at a free end of the load hanger pawl as a locking part, which is in the closed state for lifting a load in the region of a load-receiving zone of the load yoke and is pivotable such that a load-receiving means is detachable from the load bar.
  • the pawl includes two on one leg or a lifting arm of the load strap successively hinged slats, which extend in the closed state largely parallel to each other and across the opening of the load yoke and allow a load handling device, such as a rope or a chain, passed over this is to pick up a load.
  • the catch part forming the catch is supported in its latched position, each with an abutment formed by the free ends of the lifting arms of the load yoke, at this.
  • the invention has as its object to increase the reliability of a lifting device for lifting, transporting and depositing loads to the effect that accidental opening of the locking member from the latched or locked position is effectively avoided.
  • a lifting device is characterized in that the locking part is provided with a control part, which in its actuated or unactuated state, the locking member in a translational movement transversely to the pivot axis of the same out of or in latching contact with the respective abutment.
  • the control part By the control part, the reliability of the lifting device is increased to the effect that the latching of the locking member takes place in a different from the rotational opening or closing movement, translational movement.
  • the associated technical design of the lifting device prevents an opening movement of the latched locking part, since this must first be transferred from the latched position in translational motion in the released position to be opened from this position in a rotational movement.
  • the control part is a locking mechanism for the locking of the locking part, which connects the two lifting arms bridge-like manner in contact with the abutments and thus closes the open side of the load receiving space.
  • the force for the translatory movement the locking part is applied via the control part and in particular via a load acting on the locking part.
  • the locking part at its free end on a locking lug which engages in the locked state in the wedge-shaped abutment on a lifting arm and that at the free end opposite end of the locking part, a further locking lug is formed, which is latched Condition is in abutment with the abutment on the other lifting arm, which is cylindrical or wedge-shaped.
  • a completely secure latching respectively locking between the two lifting arms and the locking part is achieved.
  • the locking part and the control part are connected to each other via a web portion such that at least in the latched position of the locking part a receiving space for a load-receiving means is formed as a subspace of the load receiving space.
  • locking and web part and control and web part are each at a right angle to each other, so that the composite of locking, control and web part forms a U-shape.
  • the component comprising latching, control and web part is pivoted into the load receiving space such that at least the locking part, preferably locking and control part, abuts against the web part opposite lifting arm.
  • the locking part, the web part, the control part and the at least one lifting arm form the sides of the receiving space.
  • the position of the composite of locking, control and web part is fixed and the position of a in the receiving space recorded load-receiving means, such as a rope, a chain or a fixedly attached to the load eyebolt.
  • the locking part, the control part and the web part perpendicular to each other forms a component with the receiving space.
  • the load-receiving space delimited by the lifting arms has a substantially rectangular cross-sectional shape.
  • the transverse thereto arranged locking part is translationally movable.
  • a recess or a guide slot is preferably formed on at least one lifting arm on the receiving space associated inner surface, in which engage the free end of the locking part and can be moved in the direction of the abutment.
  • the locking part in a lifting arm associated with a housing portion is pivotable and moved out of the load receiving space.
  • the preferably bar or web-like locking part in the region of the free end of the respective lifting arm at the same time in abutment with the respective abutment can be brought.
  • a bar-shaped or ridge-like locking part represents a particularly suitable for the use of the lifting device plane contact surface for a load handling device, such as a rope or a chain, by the arrangement of the abutment in the region of the free end of the respective lifting arm is the largest possible receiving space for a Load receiving means formed as a subspace of the laterally limited by the lifting arms load receiving space.
  • the respective abutment is optimized to meet requirements as a receptacle, latching nose, molding or the like configured.
  • the abutments are arranged in each case one, preferably in a common, aligned perpendicular to the translational movement of the locking part level and formed in its shape corresponding to the locking part. This results in the advantage that the abutment unhindered in a translational movement of the locking member come into contact with this and form a support for the latched locking part.
  • the example cylindrical or wedge-shaped abutment are expediently designed counterpart to the locking part, wherein the latching part is provided a corresponding locking lug or recess.
  • a preferably acting on the control part restoring device preferably with a spring element, such as a compression spring provided, which causes a translational return movement of the locking part from the latched position to the released position. Due to the automatic, caused by the return device provision of the locking part a user-friendly, easy handling of the lifting device is ensured.
  • the restoring device is arranged in a housing part adjoining the control part, particularly preferably in the region of the pivot axis for latching and control part.
  • the pivot axis for the rotational movement is provided in the region of the housing side, facing away from the open end of the load receiving space, and in particular the control part is arranged on the pivot axis and movable via the actuating device.
  • the control part is typically designed bar or web-like, wherein the pivot axis is particularly preferably arranged centrally.
  • the actuating device usually engages in an end region of the control part, particularly preferably in the connection region of web and control part, on the control part.
  • the restoring device is arranged in the region of the pivot axis arranged preferably centrally on the control part such that the restoring direction changes in accordance with the pivot position of the control part and a translational return of the locking part is effected only in the correct position of the control part. This is achieved in particular by the fact that the restoring device is not fixed to the housing but is fixedly arranged on the pivotable control part.
  • an operating element for a manual actuation and / or a motor preferably a battery-operated electric motor, for an automatic actuation.
  • designed as a control lever operating element results in a simple, reliable handling of the lifting device, which is opened as needed to bring in or take out a lifting device and closed again for the load operation or storage of the lifting device.
  • the two-point support of the locking part on the abutments in conjunction with the force applied via the load-receiving means on the locking part force is essential.
  • a preferably acting on the control part further restoring device, preferably provided with a resilient element, which causes a rotational return movement of the locking part from the access to the load receiving space releasing position back into a load receiving space occluding position.
  • the locking part connected to the control part via the web part releases and closes the receiving space for the load receiving part in a corresponding manner.
  • the further restoring device is arranged stationarily on the housing of the lifting device and, with particular preference, engages in the region of the control part on which the actuating device also engages.
  • the further restoring device is particularly preferably arranged outside the region of the pivot axis, which is preferably arranged centrally on the control part, such that a rotational return of the locking part is effected independently of the pivoting position of the control part. In this way, the force required for provision force is applied particularly easily to the control and locking part.
  • an actuating part having the actuating device and the control part and further a carrier part adjoins a load-receiving part of the housing having the lifting arms, and in particular the carrier part comprises a receiving device for the lifting device.
  • the load-receiving part of the housing typically a lifting arm is widened or connects to a corresponding housing part, in which the locking part, in particular in conjunction with the web part and control part, is pivotable into.
  • the central control part for the movable components and the actuation and return mechanisms acting on the latter are arranged in the actuating part of the housing, which typically represents a central part of the housing.
  • the carrier part which particularly preferably adjoins the actuating part has, in particular, the function of enabling a reception of the lifting device, for example via a retaining ring.
  • the housing is composed of carrier part, operating part and fork-like load receiving part.
  • the lifting device with the housing and the components arranged therein as well as the receiving device has a flat shape.
  • the motor for the actuator is arranged on the carrier part of the housing, preferably attached to the outside. In this way, no space for the motor is required in the load-receiving and operating part of the housing.
  • the motor is connected via a cable with the pivotally mounted control part.
  • the arrangement on the outside of the housing or of the carrier part has the advantage that the motor is accessible in a simple manner for maintenance or repair purposes and can not be arranged in the housing of the lifting device for reasons of space size.
  • Lifting device 10 shown in side view has a housing 12 with two lifting arms 14a and 14b.
  • the lifting arms 14a, 14b are directed downwards and opposite to each other a receiving device 16 is arranged at the top of the housing 12. This corresponds to the extent of the use position of the lifting device 10 when lifting, transporting and depositing loads.
  • the receiving device 16 is designed as a vertically parallel to the housing 12 aligned retaining ring and is penetrated for example by a crane hook.
  • the lifting arms 14a, 14b define a load receiving space 18 with the housing 12 connecting them.
  • the load receiving space 18 has a substantially rectangular cross-sectional shape and is open to one side, down here. Via this opening, a load-receiving means, such as a rope, a chain or a fixedly attached to the load eyelet, are introduced into the load receiving space 18.
  • a component 20 can be inserted, which has a locking part 24 for closing the open side of the load receiving space 18.
  • the locking part 24 is formed like a bar and connected to a control part 26 via a likewise beam-like web portion 28.
  • the locking part 24, the control part 26 and the web part 28 form the movable member 20 of the lifting device 10.
  • the component 20 is sometimes referred to as a "pawl".
  • the component 20, which is movable about a pivot axis S, is pivoted into the load receiving space 18 and delimits, with the lifting arm 14a shown on the right, a receiving space 22 for the load-carrying means not shown in the figures.
  • the receiving space 22 is a partial space of the load receiving space 18 and also has a substantially rectangular cross-sectional shape. According to a translational movement T1, in the representation of Fig. 1a from top to bottom, the locking part 24 has been brought into the locked position shown and there in abutment with abutments 30a, 30b.
  • the abutments 30a, 30b are respectively in the end region associated with the open side of the load receiving space 18 arranged the lifting arms 14a, 14b and formed as a cylindrical web (abutment 30b) or as a wedge-shaped receptacle (abutment 30a).
  • a translational return movement T2 in the representation of Fig. 1b from bottom to top, the locking member 24 is in the released position and out of engagement with the abutments 30a, 30b brought.
  • Fig. 1b are the counter to the abutments 30a, 30b formed locking lugs 32a, 32b of the locking member 24 clearly visible.
  • the one latching nose 32 a is at the in the Fig. 1a to 1d shown on the right, free end of the locking part 24 is formed and engages in the wedge-shaped abutment 30a on the lifting arm 14a.
  • the locking lug 32b is formed to rest against and on the cylindrical abutment 30b on the lifting arm 14b.
  • Fig. 1b shown released position engages the locking member 24 with a locking lug 32a in a formed on web-like lifting arm 14a recess 34 (see. Fig. 1c and 1d ) one.
  • the component 20 can be pivoted about the pivot axis S in the block-like widened lifting arm 14b such that the other latching nose 32b of the latching part 24 protrudes from the housing 12 on the side of the lifting arm 14b opposite the load receiving space 18.
  • the pivot axis S is arranged centrally on the control part 26. In the region of the pivot axis S, a restoring device 36 for the translational return movement T2 of the latching part 24 is arranged.
  • Fig. 2 shows the return device 36 in detail.
  • a slot 38 is formed, in which a fastening bolt 40 is inserted along the pivot axis S and fixed to the housing 12 for pivotally mounting the control part 26.
  • a screw 24 is supported on this, which is acted upon by a compression spring 44.
  • the compression spring 44 causes a movement of the control part 26 in the vertical direction of the screw 42, corresponding to the translational return movement T2 in the vertical direction.
  • the screw 42 with the compression spring 44 as a central element of the return device 36 is arranged in an extension 46 of the web-like control part 26.
  • an operating element 48 which is arranged in the connecting region of web part 28 and control part 26, the control part 26 and with it the movable component 20 in a rotational movement R1 from the load receiving space 18 in the housing 12 is pivotable, as in Fig. 1c and 1d shown.
  • An opposing rotational return movement R2 is effected by the further restoring device 50, which is arranged in an actuating part of the housing 12 adjoining the pivoting region of the component 20.
  • the further restoring device 50 is a spring-elastic element fixed to the attachment point 54c.
  • the housing 12 and the components arranged in or on it are via fastening means, of which in the Fig. 1a to 1d only two are designated 54b and 54c, firmly connected.
  • the lifting device 10 is characterized in that the locking part 24 from the in the Fig. 1a locked position not shown in the Fig. 1c and 1d shown, the access to the load receiving space 18 releasing position can be moved.
  • the translational return movement T2 in the in the Fig. 1b shown dissolved position is imperative and thus constitutes a securing mechanism.
  • the control part 26 is connected to an insertion funnel 53 of an electric motor, not shown.
  • the component 20 from the in Fig. 1b shown dissolved position in the in Fig. 1c and 1d shown pivoted out of the load receiving space 18 position movable. Accordingly, the cable 52 in the illustration of Fig. 1c and 1d shortened compared to the representation in the Fig. 1a and 1b ,
  • the resilient element comparable to a metal strip formed further restoring device 50 is located on the other lifting arm 14b associated part of the top of the control part 26 on this and exerts a spring force on this.
  • the rotational return R2 of the component 20 causes.
  • the elastic return device 50 rests against the end of the control part 26 assigned to the web part 28, the fastening means 54c representing the axis of rotation for the restoring force acting in the radial direction.
  • the cable 53 is guided through a slot 55 formed in the further restoring device 50 and open towards the free end.
  • the cable 52 engages the control part 26, wherein the force acting on the cable 52 electric motor a rotational movement R1 to open the load receiving space 18 and the further restoring device 50 a rotational movement R2 for closing of the load receiving space 18 causes.
  • another cable can be provided on the free end of the control part 26 associated with the one lifting arm 14a and connected to the insertion funnel 53. About this further cable a restoring force on the control part 26 as part of the component 20 can be applied.
  • the electric motor is accommodated in a motor housing 58, which is arranged on the rear side of the housing 12, adjacent to the receiving device 16.
  • the actuating device 48, the cable 52 and the two restoring devices 36, 50 all act on the control part 26, whereby a compact structure and a central control of the lifting device 10 are ensured.
  • Fig. 3 shows a side view of the lifting device 10 comparable to the Fig. 1d , wherein the housing 12 is shown completely closed. At the edge of the housing 12 fastening means 54a to 54j are arranged at a total of ten points.
  • the housing 12 at the in Fig. 3 shown side an arcuate guide slot 56 for the control element 48.
  • the control element 48 is the control part 26, which in the illustration of Fig. 3 with its free end into the load receiving space 18 protrudes, operable and the locking part, which in the representation of the Fig. 3 with the detent 32b protrudes from the housing 12, movable.
  • the on the lifting arm 14 a, 14 b opposite side of the housing 12 formed receiving device 16 is in the side views of Fig. 4a, 4b and 4d good as well as in the side view of Fig. 4c visible only with the over the housing 12 laterally projecting part.
  • the side views of Fig. 4a to 4d can be removed that only the fastening means 54a, 54j for fastening the web-like, cylindrical abutment 30b and the screw 42 (see. Fig. 2 ) project along the pivot axis S over the respective side surface of the housing 12.
  • the motor housing 58 of the electric motor is fastened to a rear side of the housing 12 by means of five fastening means 54d to 54h in a carrier part of the housing 12 assigned to the receiving device 16.
  • the electric motor as actuator of the control part 26 also on the in Fig. 3 shown front side of the housing 12 may be arranged.
  • the operating element 48 projects in the form of a gripping button on the front side of the housing 12.
  • Fig. 4a and 4d show that the housing 12 of the lifting device 10 at the top and the one lifting arm 14a associated side is formed closed.
  • the side of the housing 12 formed open at least in the arranged between the fastening means 54a, 54j load receiving part. Via an associated opening 60 on the side of the housing 12, the other latching lug 32 b of the latching part 24 can be brought out of the housing 12.
  • the housing 12 of the lifting device 10 is formed at least partially open at the bottom and so far provides access to the load receiving space 18 (see. Fig. 3 ).
  • FIGS. 5 and 6 Perspective oblique views of FIGS. 5 and 6 the back and the front of the lifting device 10, in particular the formation of the two abutments 30a, 30b and the other lifting arm 14b as a pivoting space for the locking part 24 can be removed.
  • An abutment 30a on a lifting arm 14a is wedge-shaped and adjoins the recess 34.
  • the other abutment 30b is formed as a cylindrical web between the fastening means 54a on the other lifting arm 14b.
  • the fastening means 54b comprises a likewise cylindrical web between both sides of the housing 12 on the other lifting arm 14b.
  • the components of the lifting device 10 are typically formed of a metal material, such as steel.
  • the battery-operated electric motor may be accommodated in a motor housing 58, preferably made of metal.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Invalid Beds And Related Equipment (AREA)
EP18162325.7A 2017-03-21 2018-03-16 Dispositif de levage Active EP3378822B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017002812.5A DE102017002812A1 (de) 2017-03-21 2017-03-21 Hebevorrichtung

Publications (2)

Publication Number Publication Date
EP3378822A1 true EP3378822A1 (fr) 2018-09-26
EP3378822B1 EP3378822B1 (fr) 2019-10-09

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ID=61691366

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18162325.7A Active EP3378822B1 (fr) 2017-03-21 2018-03-16 Dispositif de levage

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EP (1) EP3378822B1 (fr)
DE (1) DE102017002812A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2756450C1 (ru) * 2020-12-28 2021-09-30 федеральное государственное бюджетное образовательное учреждение высшего образования "Тольяттинский государственный университет" Устройство для автоматического захвата и транспортировки длинномерных осесимметричных деталей

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428355A (en) * 1967-12-26 1969-02-18 Alexander Hamilton Safety hoisting hook
US3964777A (en) * 1974-03-07 1976-06-22 Hiab-Foco Aktiebolag Remote-controlled loading hook

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006019490U1 (de) 2006-12-27 2007-04-12 Pfeifer Holding Gmbh & Co Kg Fernbetätigbarer Lastbügel oder -haken

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428355A (en) * 1967-12-26 1969-02-18 Alexander Hamilton Safety hoisting hook
US3964777A (en) * 1974-03-07 1976-06-22 Hiab-Foco Aktiebolag Remote-controlled loading hook

Also Published As

Publication number Publication date
DE102017002812A1 (de) 2018-09-27
EP3378822B1 (fr) 2019-10-09

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