EP3150543B1 - Agencement de mecanisme pas a pas, et dispositif de poignee - Google Patents

Agencement de mecanisme pas a pas, et dispositif de poignee Download PDF

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Publication number
EP3150543B1
EP3150543B1 EP15188012.7A EP15188012A EP3150543B1 EP 3150543 B1 EP3150543 B1 EP 3150543B1 EP 15188012 A EP15188012 A EP 15188012A EP 3150543 B1 EP3150543 B1 EP 3150543B1
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EP
European Patent Office
Prior art keywords
gripper
locking
gripper device
pawl
switch mechanism
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.)
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Application number
EP15188012.7A
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German (de)
English (en)
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EP3150543A1 (fr
Inventor
Hans Eichinger
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Florian Eichinger GmbH
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Florian Eichinger GmbH
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Publication date
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Priority to EP15188012.7A priority Critical patent/EP3150543B1/fr
Publication of EP3150543A1 publication Critical patent/EP3150543A1/fr
Application granted granted Critical
Publication of EP3150543B1 publication Critical patent/EP3150543B1/fr
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    • 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
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/422—Gripping members engaging only the external or internal surfaces of the articles actuated by lifting force

Definitions

  • the present invention relates to a
  • Step switch arrangement for controlling the opening and closing movements of gripper devices which can be detachably attached to construction machines such as cranes.
  • the present invention also relates to a gripper device for gripping material to be gripped with such a stepping mechanism arrangement.
  • Such gripper devices can, in particular, as known scissor-type grippers for the palletless transport of, for example, building material packages, curb laying pliers for the transport of precast concrete parts, precast pliers for the safe and reliable transport and moving of precast concrete parts, curbs and the like, angle element pliers for the transport of L-shaped stones, for example, or generally as transport grippers or universal pliers.
  • Gripper devices can be detachably attached to various construction machines such as cranes, excavators, forklifts, etc. and are designed to grasp goods such as hay bales, barrels, coils, loaded pallets, pipes and the like.
  • it is customary to mechanically control the opening and closing movements by means of a stepping mechanism, so that additional units such as hydraulic or pneumatic components can be dispensed with.
  • additional units such as hydraulic or pneumatic components can be dispensed with.
  • the gripper device attached to the construction machine and in the open state is worn out Fluctuations or vibrations, e.g. B. come from a boom attached to the construction machine while driving over rough terrain, closes unintentionally.
  • the gripping mechanism has a lifting mechanism which controls the pivoting position of the load gripping arms, so that, in the case of successive applications of a lifting force, the load gripping arms are alternately opened or closed by a carrying rope connected to the gripping mechanism.
  • a gripper device with gripper elements that can be opened and closed for gripping a material to be gripped.
  • the gripper device is fastened to a cantilever arm of a driving device with the aid of a fastening device.
  • a stepping mechanism is provided for controlling the opening and closing movements of the gripper elements between an open state and a closed state.
  • the step switch detects the relative movements between parts of the gripper device.
  • a locking element of the indexing mechanism can be moved between a release position in which the gripper elements perform a closing movement and a locking position in which the gripper elements are held in the open position.
  • a damping device of the stepping mechanism that slows down the movement of the locking element can prevent the locking element from entering the release position.
  • this damping device when the gripper device vibrates, the pivoting movement of the The pawl slows out of the locking position into the release position, so that the stop element with the pawl can lock again with the pawl during the subsequent vibration before the pawl is pivoted into the release position.
  • the damping device does not require insignificant installation space, which is only marginally available in the already compact stepping mechanism. Furthermore, there is a risk with the damping device that, for example, the torsion spring breaks and the unwanted closing can no longer be prevented.
  • the DE 1 255 888 discloses the preamble of independent claim 1.
  • a technical problem on which the invention is based is to provide a stepping mechanism arrangement with which an unintentional closing of the gripper device which is in the open position can be prevented even in the event of large fluctuations or vibrations, without separate additional devices such as for example, a costly damping device is necessary.
  • a stepping mechanism arrangement for controlling the opening and closing movements of a gripper device which can be detachably attached to a construction machine and which can be opened and closed for gripping a material to be gripped.
  • the indexing device arrangement according to the invention has a pawl which can be attached to the gripper device and has a first locking surface and can be moved between a release position in which the gripper device can carry out a closing movement and a locking position in which the gripper device can be held in the open position.
  • the indexing device arrangement according to the invention furthermore has a stop element which can be attached to the gripper device and has a second locking surface and is designed to move along a predetermined, in particular rectilinear movement path during opening and closing movements of the gripper device relative to the pawl.
  • the stop element is also designed, when the gripper device is to be held in the open position, to hold the pawl in the locking position by contacting the second locking surface with the first locking surface.
  • the second locking surface is inclined at an angle of less than 90 ° with respect to the predetermined movement path. In particular, the angle of the second locking surface in one Range from about 0 ° to 80 or 85 ° to the predetermined movement path of the stop element.
  • the first locking surface is designed in particular in accordance with the second locking surface.
  • the advantage of the stepping mechanism arrangement according to the invention is that no such damping device has to be provided, but nevertheless due to the unique design of the locking surfaces an unwanted disengagement of the pawl is prevented even with larger vibrations or jerky movements of the gripper device.
  • step-by-step mechanism arrangement according to the invention, during the transport of the opened gripper device which is hanging on a cantilever arm, in the event of large fluctuations or vibrations of the cantilever arm, an undesired closing of the gripper device can be avoided in that a movement of the pawl into the release position can be prevented by an engagement with the stop element , Due to the engagement achieved by means of the inclined locking surface of the stop element, additional devices for holding the pawl in the release position can be omitted. In addition, the effect of self-locking between the pawl and the stop element can be increased by the inclined second locking surface.
  • the necessary lifting height by which the stop element has to move relative to the pawl so that the pawl can pivot from the locking position into the release position can be increased in a structurally simple and efficient manner. Besides, can thereby permanent unwanted closing of the gripper device can be avoided without the risk that z. B. the damping device fails.
  • the pawl can be blocked or released by the stop element depending on the movements of the gripper device when lifting and lowering.
  • the stop element has a second locking surface inclined with respect to its predetermined movement path, which comes into contact with the first locking surface of the pawl in the locking position thereof and can thus prevent further movement of the stop element relative to the pawl.
  • the second locking surface of the stop element is inclined in such a way that it rises in the direction of the pawl and can thus be prevented that the pawl moves from the locking position into the release position when the hanging and opened gripper device fluctuates.
  • a self-locking effect can be achieved by the inclined locking surface engaging locking surfaces is achieved because the stop element urges or biases the pawl in the locking position.
  • the stepping mechanism arrangement has a housing which can be attached to the gripper device and in which the pawl is arranged, which can be moved when the gripper device is raised into the region of the stop element in such a way that the first locking surface comes into contact with the second locking surface and the Gripper arms are kept open.
  • the stepping mechanism arrangement furthermore has an adjusting pawl arranged in the housing, which is mechanically coupled to the pawl and is designed to move the pawl between the locking position and the release position.
  • the pawl with the pawl can, for example, essentially as in FIG EP 2 065 330 B1 described mechanically coupled.
  • the adjusting pawl can also be designed to protrude from the stop element out of the housing and into the housing. Due to the mechanical coupling of the pawl to the pawl, when the pawl is actuated by the stop element, the pawl can be brought out of the release position into the locking position again. H. that the pawl protrudes from the housing.
  • the stop element is essentially C-shaped and has a lower stop area, an upper stop area spaced from the lower stop area and a connecting area connecting the lower stop area to the upper stop area.
  • the lower stop area is essentially plate-shaped and runs essentially horizontally and if the upper stop area is essentially plate-shaped and runs essentially horizontally.
  • Such a configuration can provide a locking area between the lower stop area and the upper stop area, into which the pawl can engage or protrude in the locking position.
  • the two stop areas can be formed independently of one another, so that the functionality of the stepping mechanism arrangement can be improved and can work satisfactorily.
  • first locking surface and / or the second locking surface are flat.
  • first locking surface and / or the second locking surface can be curved or configured in some other way.
  • the locking surfaces should be inclined in such a way that the pawl has to travel a longer stroke before it comes out of engagement with the stop element.
  • the stepping mechanism arrangement preferably also has a manual locking device which has a locking hole and a locking pin which can be inserted into the locking hole and is designed to hold the pawl in the locking position regardless of the position of the stop element.
  • a gripper device for gripping a material to be gripped.
  • the gripper device according to the invention which can be detachably attached to a cantilever arm of a construction machine by means of a connecting device, has a first gripper arm and a second gripper arm which is movably arranged with respect to the first gripper arm.
  • the first gripper arm and the second gripper arm can be moved relative to one another between a closed position and an open position for gripping a material to be gripped.
  • the gripper device according to the invention also has an inventive Step switch arrangement, which is designed to control the opening and closing movements of the first gripper arm and the second gripper arm.
  • the stop element and the pawl are arranged on the gripper arms in such a way that the stop element engages under the pawl in the open position of the gripper arms.
  • the pawl and the stop element are pressed together by the entire hanging gripper device, which is in the open position, and the risk of unintentional loosening is further reduced.
  • the first gripper arm and the second gripper arm form a scissor gripper in which the gripper arms can be pivoted relative to one another about a first pivot point for opening and closing.
  • regions of the gripper arms projecting beyond the first pivot point to the side of a connecting device which is designed for releasably connecting the gripper device to a construction machine are pivotably connected in second pivot points to connecting rods whose ends facing away from the second pivot points about a third pivot point relative to one another and in Are pivotable with respect to the connecting device.
  • the gripper arms thus form a scissor-like joint.
  • a housing receiving the adjusting pawl with respect to the second pivot points on the side opposite the connecting device may be attached to attach a stop element with respect to the second pivot points on the side of the connecting device.
  • the stop element is preferably arranged at a first location of the gripper device and the pawl at a second location of the gripper device. The first location and the second location can be moved relative to one another when the gripper arms are opened and closed.
  • the first location and the second location are both arranged on the same gripper arm, i. H. on the first gripper arm or on the second gripper arm.
  • the pawl and the adjusting pawl in the housing are each movably arranged, preferably pivotable, between a first position in which it protrudes from the housing and a second position in which it is moved back into the housing.
  • the gripper device is actuated, the pawl and the adjusting pawl are moved in such a way that the operations explained below take place.
  • the stop element engages under the pawl protruding from the housing, the gripper device being open in this position of the stepping mechanism arrangement.
  • the gripper device When the open gripper device is subsequently positioned around a material to be gripped, for example on a hay bale, the gripper device sits at least partially on the material to be gripped and the contact between the first and second locking surfaces is released, so that the stop element releases the pawl and the pawl releases moved out of the area of the stop element and swings into the housing.
  • the stop element moves past the pawl pivoted into the housing and actuates the pawl which moves the pawl out of the housing , In this position, the stop element has passed the pawl so that the gripper device can close and grab the hay bale.
  • the stop element is again moved past the pawl in the opposite direction, the pawl being moved into the housing through the lower stop region of the stop element. After the lower stop area has passed the pawl, the pawl can come out of the housing and engage or protrude into the locking area between the lower stop area and the upper stop area.
  • the stop element again engages under the pawl and the two locking surfaces come into contact.
  • the cycle can then begin again. In this position, the gripper device is again in the open position and can be moved to grip the next item to be gripped.
  • the Fig. 1 shows a schematic representation of a gripper device 10 which is in the open position and which is designed, for example, in the form of a scissor gripper.
  • the gripper device can be designed in the form of curb laying pliers, precast pliers or a transport gripper.
  • the gripper device 10 essentially consists of a first gripper arm 20 and a second gripper arm 30.
  • the first gripper arm 20 has two gripper arm elements 22, 24 which are spaced apart from one another in the transverse direction and are connected to one another via transverse parts 21a, 21b.
  • Each gripper arm element 22, 24 essentially comprises a first partial area 23 or 25 and a second partial area 26 or 28, which is preferably under one run approximately at right angles to each other and are rounded at their respective transition.
  • a gripping jaw 29, which runs in the transverse direction and connects the first partial regions 23, 25, is arranged on the lower free end region of the first partial regions 23, 25.
  • the gripper arm 30 designed in the corresponding manner has the gripper arm elements 32 and 34 spaced apart from one another in the transverse direction, the cross parts 31a, 31b and the gripper jaw 39.
  • the gripper arm element 32 comprises the partial regions 33 and 36, which preferably run at an approximately right angle to one another, and the gripper arm element 34 has the partial regions 35 and 38, which likewise preferably run at an approximately right angle to one another.
  • the gripping jaw 39 is attached to the lower free ends of the sections 33 and 35 in the transverse direction.
  • the partial areas 26 and 28 of the gripper arm elements 22 and 24 and the partial areas 36 and 38 of the gripper arm elements 32 and 34 are pivotally connected to one another about an axis of rotation 40 extending in the transverse direction.
  • the axis of rotation 40 is located approximately in the middle of the partial areas 26, 28, 36, 38. In this way, the gripper arms 20 and 30 can be pivoted against each other.
  • pivoting connecting rods 43 and 44 are arranged around pivot points 41 and 42, the free end areas of which are pivotably connected to a cross part 45 at pivot points 46 and 47.
  • the free end regions of the partial regions 36 and 38 of the gripper arm elements 32 and 34 are connected to pivot rods 51 and 52 by connecting rods 53 and 54, the free end regions of which are pivotably connected to the cross part 45 in the pivot points 46 and 47.
  • the gripper arms 20, 30 are accordingly provided in the form of scissor-like joints which are movably connected to one another at the pivot point 40.
  • a connecting device 50 is attached in the center of the cross member 45, with which the gripper device 10 can be detachably connected, for example on a cantilever arm of a construction machine, not shown.
  • the gripper arms 20, 30 are moved in the direction of the closed position by the dead load of the gripper device 10 hanging on the extension arm.
  • the connecting rods 43, 44 are connected to one another by a cross member 48, while the connecting rods 53, 54 are connected to one another by a cross member 58.
  • the subregions 26, 28 are also connected to one another by a cross member 49.
  • a stepping mechanism arrangement 100 is arranged, which in the following in connection with Fig. 2 is explained.
  • the stepping mechanism arrangement 40 can also be arranged in a different way between locations which move relative to one another when the gripper arms 10, 20 open and close.
  • the stepping mechanism arrangement 100 has, in the manner already explained at the beginning, a stop element 110 arranged on the first gripper arm 20, in particular on the transverse part 48, of the gripper device 100.
  • the stop element 110 is preferably approximately C-shaped and has a lower stop region 112 and an upper stop region 114 spaced apart from the lower stop region 112, which are connected to one another by means of a connecting region 116.
  • a locking area 115 is arranged between the lower stop area 112 and the upper stop area 114.
  • the lower stop area 112 and the upper stop area 114 are oriented substantially horizontally, the connecting area 116 and a stiffening area 118, which is between the lower stop area 112, upper Stop area 114 and connecting area 116 is connected, are aligned substantially vertically.
  • a housing 120 can be attached, preferably welded, to the transverse part 49, on one side of which the stop element 110 slides when the gripper device 10 reaches its open position.
  • the stop element 110 is movable along a predetermined movement path B relative to the housing 120.
  • the movement path B of the stop element 110 is part of a circle around the pivot points 41, 42 (see Fig. 1 ). In side view of the circular arc part of the movement path B appears as from the Figure 3B visible, but the movement path B is straight.
  • a pawl 122 and a pawl 124 are arranged on the housing 120 in the manner already explained at the beginning, the function of which in detail in connection with the schematic representations of FIGS 3 to 7 are explained. In the 3 to 7 are they from the 1 and 2 known elements with the same reference numerals.
  • the pawl 122 has a plate-like first pawl element 122a and a plate-like second pawl element 122b spaced therefrom, which are rigidly connected to one another by means of a non-visible web.
  • the two pawl elements 122a, 122b have an essentially identical shape and are congruently shaped in a side view.
  • Each of the two pawl elements 122a, 122b has a first elongated hole 121a, 121b (in the Fig. 2 only the elongated hole 121a of the first pawl element 122a is visible) through which a first bearing pin 126 attached to the housing 120 extends.
  • the two pawl elements 122a, 122b are each mounted on the bearing pin 126 in such a way that they can rotate or pivot freely about the bearing pin.
  • the plate-like adjusting pawl 124 is arranged to move freely between the spaced pawl elements 122a, 122b and has a second slot 127 (see 3 to 7 ) through which extends a second bearing pin 129 fastened to the housing 120.
  • the second bearing pin 129 extends beyond the elongated hole 127 and can come into contact with peripheral surfaces of the pawl elements 122a, 122b.
  • the second bearing pin 129 is arranged above the first bearing pin 126.
  • the pawl elements 122a, 122b and the pawl 124 are connected to one another by a connecting pin 128 such that the two pawl elements 122a, 122b and the pawl 124 are each rotatable about the connecting pin 128.
  • the pawl 122 and the pawl 124 are mechanically coupled to one another by the bearing pins 126, 129 and the connecting pin 128.
  • the region of the stop region 112 facing the housing 120 is inclined and has a locking surface 113 which is designed to come into contact with a locking surface 123 of the locking pawl 122 in the locking position of the locking pawl 122.
  • the 3A and 3B show a side view of the gripper device 10 or the indexing device arrangement 100 in a position in which the gripper device 10 is raised with the cantilever arm and the gripper arms 20, 30 are open (see Fig. 1 ).
  • the pawl 122 protruding from the housing 120 interlockingly engages the stop element 110.
  • the lower stop region 112 interlockingly engages the pawl 122, so that the locking surface 113 of the lower stop region 112 is in contact with the locking surface 123. Locking occurs between the cross part 49 of the gripper arm elements 22, 23 and the cross part 48 between the connecting rods 43, 44.
  • the gripper device 10 can be held in the open position and according to the Figure 3A can be positioned around a material 90 to be gripped.
  • the indexing device arrangement 100 can optionally have a locking device 130 with which the pawl 122 can be held in its locking position.
  • the locking device 130 has a locking hole 132, which is located in the housing 120 at a location below the bearing pin 126.
  • the locking device 130 has a locking pin 134 which can be inserted manually into the locking hole 132. If the locking pin 134 is inserted into the locking hole 132 while the pawl 122 is in the locking position, the pawl 122 is prevented from moving into the release position regardless of the position of the stop element 110.
  • stop element 110 moves downward relative to pawl 122 by gravity. If the amount of movement of the stop element 110 exceeds the necessary lifting height H (see 8 and 9 ), the pawl 122 is released and can pivot back into the housing 120. Thus, the stop element 110 must be at least H (see Fig. 8 ) are moved downward so that the pawl 122 can pivot freely back into the housing 120 under the action of gravity.
  • the pawl 122 is mounted on the bearing pin 126 such that it tends to pivot into the housing 120 from the locking position projecting from the housing 120 without the locking with the stop element 110. This is accomplished by the mobility of the pawl 122 relative to the bearing pin 126 through the elongated hole 121.
  • the bearing pin 126 According to the Figure 4B is the bearing pin 126 with the upper area of the elongated hole 121 in contact, whereas the bearing pin 126 according to the Figure 3B is in contact with the upper region of the elongated hole 121.
  • the gripper device 10 with the material 90 gripped therein is placed on the ground, the stop element 110 moving downward and the lower stop region 112 pushing the pawl 122 into the housing 120.
  • the mechanical pawl between the pawl 122 and the pawl 124 moves the pawl 124 out of the housing 120 again.
  • the gripper arms 20, 30 are opened and the material 90 to be gripped is free.
  • the lower stop area 112 touches the locking pawl 122 from below and locks, the locking pawl 122 moving somewhat upward through the elongated hole 121 and then the pawl 124 is moved out of the housing 120 to the front.
  • the state of the 3A and 3B is reached again. In this state, the gripper arms 20, 30 of the gripper device 10 are opened again and the next material 90 to be gripped can be gripped and moved.
  • the cycle starts again.
  • the Fig. 8 shows an enlarged section of the stepping mechanism arrangement 100, which is in the position according to FIG Figure 3B located. From the Fig. 8 it can be seen that the lower stop region 112 consists of a bent plate element, the front region, which faces the locking pawl 122 and is bent, being inclined by an angle ⁇ with respect to the linear movement path B of the stop element 110. In the Fig. 8 it should be noted that this is one against the Fig. 1 3 shows a side view of the stepping mechanism arrangement 100 so that the movement path B shown in FIG Fig. 1 is circular, in which Fig. 8 runs straight. The angle ⁇ is thus defined between the linear movement path B and the inclined locking surface 113.
  • the engagement length E between the locking surface 113 and the locking surface 123 is directly related to the necessary lifting height H and the angle ⁇ .
  • the necessary lifting height H describes the height by which the stop element 110 must be moved downwards relative to the pawl 122 so that the pawl 122 moves out of the locking position (see Figure 3A ) in the release position (see Figure 4B ) can pivot freely.
  • the engagement length E is preferably in the range from approximately 10 mm to approximately 150 mm, in particular between approximately 30 mm and approximately 80 mm.
  • the necessary lifting height H is preferably in the range of about 5 mm to about 50 mm, especially between about 10 mm and 30 mm.
  • the value for the angle ⁇ is approximately 70 °, and according to the invention the value for the angle ⁇ can be in a range between approximately 0 ° and approximately 80 °, possibly even 85 °, in particular between 50 ° and 80 °.
  • the Fig. 9 a further embodiment of the stepping mechanism arrangement 100 according to the invention, in which the angle ⁇ is 0 °, that is to say that the locking surface 113 runs essentially parallel to the movement path B of the stop element 110.
  • the pawl 122 and the locking surface 123 are adapted in accordance with the lower stop area 112 so that the stop element 110 can hold the pawl 122 in the locking position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Claims (15)

  1. Agencement de mécanisme pas à pas (100) pour la commande des mouvements d'ouverture et de fermeture d'un dispositif de poignée (10) pouvant être monté de manière détachable sur un engin de chantier, qui peut être ouvert et fermé pour la saisie d'une marchandise à saisir (90), dans lequel l'agencement de mécanisme pas à pas (100) présente :
    - un cliquet d'arrêt (122) pouvant être monté au niveau du dispositif de poignée (10), qui présente une première surface de verrouillage (123) et est mobile entre une position de libération dans laquelle le dispositif de poignée (10) peut réaliser un mouvement de fermeture, et une position de verrouillage dans laquelle le dispositif de poignée (10) peut être maintenu dans la position ouverte, et
    - un élément de butée (112) pouvant être monté au niveau du dispositif de poignée (10), qui présente une seconde surface de verrouillage (113) et est réalisé afin de se déplacer lors de mouvements d'ouverture et de fermeture du dispositif de poignée (10) par rapport au cliquet d'arrêt (122) le long d'une bande de déplacement (B) prédéterminée et, lorsque le dispositif de poignée (10) doit être maintenu dans la position ouverte, de maintenir le cliquet d'arrêt (122) dans la position de verrouillage par entrée en contact de la seconde surface de verrouillage (113) avec la première surface de verrouillage (123),
    caractérisé en ce que
    la seconde surface de verrouillage (113) est inclinée par rapport à la bande de déplacement (B) prédéterminée selon un angle (a) qui se trouve dans une plage d'environ 0° à environ 85°.
  2. Agencement de mécanisme pas à pas (100) selon la revendication 1, dans lequel la seconde surface de verrouillage (113) de l'élément de butée (110) est inclinée de telle manière que celle-ci monte en direction du cliquet d'arrêt (122) et puisse être empêchée en ce que lors d'oscillations du dispositif de poignée suspendu et ouvert (10) le cliquet d'arrêt (122) parvient de la position de verrouillage à la position de libération.
  3. Agencement de mécanisme pas à pas (100) selon l'une des revendications précédentes, de plus avec un boîtier (120) pouvant être monté au niveau du dispositif de poignée (10), dans lequel le cliquet d'arrêt (122) est agencé, lequel est mobile lors du levage du dispositif de poignée (10) dans la zone de l'élément de butée (110) de telle manière que la première surface de verrouillage (113) parvienne en contact avec la seconde surface de verrouillage (123) et les bras de poignée (20, 30) soient maintenus dans l'état ouvert.
  4. Agencement de mécanisme pas à pas (100) selon la revendication 3, de plus avec un cliquet de commande (124) agencé dans le boîtier (120), qui est couplé mécaniquement avec le cliquet d'arrêt (122) et réalisé afin de déplacer le cliquet d'arrêt (122) entre la position de verrouillage et la position de libération.
  5. Agencement de mécanisme pas à pas (100) selon la revendication 4, dans lequel le cliquet de commande (124) est de plus réalisé afin d'être déplacé de l'élément de butée (110) en dépassant du boîtier (120) et dans le boîtier (120).
  6. Agencement de mécanisme pas à pas (100) selon l'une des revendications précédentes, dans lequel l'élément de butée (110) est sensiblement en forme de C et présente une zone de butée (112) inférieure, une zone de butée (114) supérieure espacée de la zone de butée (112) inférieure et une zone de liaison (116) raccordant la zone de butée (112) inférieure à la zone de butée (114) supérieure.
  7. Agencement de mécanisme pas à pas (100) selon la revendication 6, dans lequel
    la zone de butée (112) inférieure est sensiblement en forme de plaque et s'étend sensiblement horizontalement, et
    la zone de butée (114) supérieure est sensiblement en forme de plaque et s'étend sensiblement horizontalement.
  8. Agencement de mécanisme pas à pas (100) selon l'une des revendications 6 et 7, dans lequel l'élément de butée (110) présente entre la zone de butée (112) inférieure et la zone de butée (114) supérieure une zone de verrouillage (115) dans laquelle le cliquet d'arrêt (124) peut dépasser dans la position de verrouillage.
  9. Agencement de mécanisme pas à pas (100) selon l'une des revendications précédentes, dans lequel la première surface de verrouillage (113) et/ou la seconde surface de verrouillage (123) sont planes.
  10. Agencement de mécanisme pas à pas (100) selon l'une des revendications précédentes, de plus avec un dispositif de verrouillage manuel (130) qui présente un trou de verrouillage (132) et une tige de verrouillage (134) enfichable dans le trou de verrouillage (132) qui est réalisée afin de maintenir le cliquet d'arrêt (122) dans la position de verrouillage indépendamment de la position de l'élément de butée (110).
  11. Dispositif de poignée (10) pour la saisie d'une marchandise à saisir (90) avec :
    un premier bras de poignée (20),
    un second bras de poignée (30) agencé de manière mobile par rapport au premier bras de poignée (20), dans lequel le premier bras de poignée (20) et le second bras de poignée (30) sont mobiles pour la saisie de la marchandise à saisir (90) entre une position fermée et une position ouverte l'un par rapport à l'autre, et
    un agencement de mécanisme pas à pas (100) selon l'une des revendications précédentes, dans lequel l'agencement de mécanisme pas à pas (100) est réalisé afin de commander les mouvements d'ouverture et de fermeture du premier bras de poignée (20) et du second bras de poignée (30).
  12. Dispositif de poignée (10) selon la revendication 11, dans lequel le premier bras de poignée (20) et le second bras de poignée (30) forment un dispositif du type ciseaux, pour lequel les bras de poignée (20, 30) sont pivotants autour d'un premier point de rotation (40) pour l'ouverture et la fermeture l'un par rapport à l'autre, dans lequel des zones des bras de poignée (20, 30) dépassant respectivement du premier point de rotation (40) au côté d'un dispositif de liaison (50) qui est réalisé pour la liaison amovible du dispositif de poignée (10) avec un engin de chantier ou une grue, sont reliées de manière pivotante dans des seconds points de rotation (41, 42, 51, 52) aux barres de liaison (43, 44, 53, 54) dont les extrémités éloignées des seconds points de rotation (41, 42, 51, 52) peuvent être pivotées autour d'un troisième point de rotation (46, 47) l'une par rapport à l'autre et par rapport au dispositif de liaison (50).
  13. Dispositif de poignée (10) selon la revendication 12, dans lequel un boîtier (120) recevant le cliquet de commande (120) est monté par rapport aux seconds points de rotation (41, 42, 51, 52) sur le côté en face du dispositif de liaison (50) et l'élément de butée (110) est monté par rapport aux seconds points de rotation (41, 42, 51, 52) sur le côté du dispositif de liaison (50).
  14. Dispositif de poignée (10) selon l'une des revendications 11 à 13, dans lequel l'élément de butée (110) est agencé au niveau d'un premier endroit du dispositif de poignée (10) et le cliquet d'arrêt (122) est agencé au niveau d'un second endroit du dispositif de poignée (10), dans lequel le premier endroit et le second endroit sont mobiles lors de l'ouverture et la fermeture des bras de poignée (20, 30) l'un par rapport à l'autre.
  15. Dispositif de poignée (10) selon la revendication 14, dans lequel le premier endroit et le second endroit sont tous les deux agencés au niveau du premier bras de poignée (20) ou au niveau du second bras de poignée.
EP15188012.7A 2015-10-01 2015-10-01 Agencement de mecanisme pas a pas, et dispositif de poignee Active EP3150543B1 (fr)

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EP15188012.7A EP3150543B1 (fr) 2015-10-01 2015-10-01 Agencement de mecanisme pas a pas, et dispositif de poignee

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EP3150543B1 true EP3150543B1 (fr) 2020-02-26

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1255888B (de) * 1965-03-19 1967-12-07 Karl Rekers Dipl Ing Vorrichtung zum Ver- und Entriegeln von Lasthubmitteln
US3768853A (en) * 1967-03-31 1973-10-30 Skagit Corp Single line log grapple
CH605389A5 (fr) * 1977-05-17 1978-09-29 Kueng Hans
JP2824641B1 (ja) * 1997-01-27 1998-11-11 野津運送株式会社 荷の挟持吊り上げ装置
DE102007057373B4 (de) 2007-11-27 2009-12-03 Probst Greiftechnik Verlegesysteme Gmbh Greifereinrichtung mit einem Schrittschaltwerk, insbesondere Scherengreifer

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