EP2835336B1 - Tête de verrouillage mécanique - Google Patents

Tête de verrouillage mécanique Download PDF

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Publication number
EP2835336B1
EP2835336B1 EP13179854.8A EP13179854A EP2835336B1 EP 2835336 B1 EP2835336 B1 EP 2835336B1 EP 13179854 A EP13179854 A EP 13179854A EP 2835336 B1 EP2835336 B1 EP 2835336B1
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EP
European Patent Office
Prior art keywords
locking head
unlocking
coupling
head according
actuator
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.)
Active
Application number
EP13179854.8A
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German (de)
English (en)
Other versions
EP2835336A1 (fr
Inventor
Gerhard Kaupert
Bernd Backes
Johannes Schürmann
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
Priority to ES13179854.8T priority Critical patent/ES2667327T3/es
Priority to EP13179854.8A priority patent/EP2835336B1/fr
Priority to CA2857468A priority patent/CA2857468A1/fr
Priority to JP2014148702A priority patent/JP6192612B2/ja
Priority to BR102014018694A priority patent/BR102014018694A2/pt
Priority to US14/455,688 priority patent/US10322915B2/en
Priority to CN201410389247.7A priority patent/CN104340883B/zh
Publication of EP2835336A1 publication Critical patent/EP2835336A1/fr
Application granted granted Critical
Publication of EP2835336B1 publication Critical patent/EP2835336B1/fr
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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
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs

Definitions

  • the invention relates to a locking head for a crane boom comprising at least two telescopic sections.
  • the telescoping cylinder comprises for this purpose at the end at which the piston rod exits from the cylinder, a locking head, which can be moved by the telescoping cylinder in the longitudinal direction of the boom and essentially performs two functions.
  • the lock between the telescopic section to be moved and the next outer telescopic section must be released and locked again after extending or retracting.
  • the respective telescopic section to be traversed must be coupled to the locking head and thus to the telescoping cylinder in such a way that an extension or retraction of the telescoping cylinder causes the respective telescopic section to retract or retract. It must be ensured that the respective telescopic section is coupled before releasing the lock with the next outer telescopic section with the locking head and is decoupled again after locking with the next outer telescopic section from the locking head.
  • a locking head is known in which to increase the reliability of hydraulic circuits are controlled by drivers who are set by the locking bolt to be moved, so that unlocking the telescopic shots is possible only when the driver on displacing telescopic section are set and, conversely, the release of the driver from the telescopic shifter to be relocated can only be done when the lock between two telescopic shots is done again.
  • a locking head is known in which the coupling of the locking head by means of a first hydraulic cylinder and the lock between the individual telescopic shots is actuated by means of a second hydraulic cylinder.
  • the DE 198 24 672 shows a configured as a socket and slidable on the cylinder housing a piston-cylinder unit locking head. Relative to the locking head, a sliding piece with two guide grooves for actuating securing bolts and a perpendicular thereto and engaging in a further guide groove guide ring for actuating a telescopic bolt lock is arranged.
  • a locking head according to the preamble of claim 1 is known from DE 10 2011 116083 A1 known.
  • the first slotted guide and the second slotted guide form a positive guide acting in an actuating direction and in an opposite return
  • At least one unlocking device and at least one coupling device are mechanically actuated by means of one and the same actuating element of the locking head.
  • the term "mechanical” is to be understood below that the actuator transmits forces to the unlocking device and the coupling device.
  • the actuating element acts directly on an unlocking device and / or a coupling device or at least indirectly via one or more dimensionally stable elements an unlocking device and / or a coupling device Forces applied.
  • the actuator of the locking head according to the invention also acts both in an actuating direction and in an opposing return direction on the unlocking device and the coupling device.
  • the link guides each have at least one link and at least one guided in the backdrop element.
  • the scenes extend according to the invention all in a single plane or at least in mutually parallel planes. It is conceivable that at least one of the guided in the scenes elements associated with the actuator or is firmly connected thereto. However, preference is given to an embodiment in which all scenes are assigned to the actuator, or in other words incorporated in this. The relative movements of the scenes and guided in them elements are also due to the parallelism of the backdrop levels also parallel to each other.
  • the telescoping device may, for example, have a hydraulic telescoping cylinder in order to move the locking head, in particular to the piston rod of the telecopying cylinder, but this is also the case any other suitable for this function means conceivable, for example, electric, hydraulic or pneumatic actuators, in particular linear actuators. So it can also be used as electric, hydraulic or pneumatic motors as well as pneumatic cylinders.
  • the main body of the locking head is fixedly coupled to the telescoping device or a Teleskopierzylinder, which in turn is coupled to a fixed base, such as the basic shot of the boom.
  • the actuator may consist of an integrally molded component.
  • the actuating member comprises a plurality of parts which are fixedly connected to each other and thus form the actuating member.
  • the actuating member is designed to be movable relative to the main body of the locking head, wherein in particular a translational movement is preferred.
  • the actuating member is designed to be rotationally movable relative to the main body of the locking head, wherein furthermore a combination of translational and rotational movement, ie a pivoting movement is conceivable.
  • an actuation of the unlocking device and the coupling device can be effected by the movement of the actuating member relative to the main body of the locking head.
  • the unlocking device and / or the coupling device comprises at least one movable relative to the base body, in particular translationally guided guided element, by means of which the actuating member acts on the unlocking device or the coupling device.
  • the main body has a guide for elements of the unlocking device and / or the coupling device, wherein the actuating member can act directly or indirectly on these elements to actuate the unlocking device and / or the coupling device.
  • the actuator should be designed so that the individual telescopic shots can only be unlocked from each other by means of the unlocking when the respective inner telescopic section is already firmly coupled by means of the coupling device to the locking head.
  • the telescopic shots can only be decoupled from the locking head when they are already locked to the respective outer telescopic section.
  • the movably guided to the main body element of the unlocking device and / or the coupling device can be guided in a direction which is transverse, in particular perpendicular to the direction of movement of the actuating member.
  • the unlocking of the locking head may comprise a hinged to the main body fixed support member which couples the movement of the movable guided element of the unlocking device with the movement of the telescopic weft lock.
  • this articulated element can be a lever with which the movement of the movably guided element of the unlocking device is transferred into that of the telescopic-action lock. With such a lever, it is possible to couple the direction of movement of the movably guided element of the unlocking device and the direction of movement of the telescopic section lock, for example a translationally guided locking bolt, differing therefrom.
  • an unlocking device comprises a lever mechanism with a plurality of hinged elements or levers in order to couple the movement of the guided element of the unlocking device with that of the telescopic-action lock.
  • the locking head has two unlocking or coupling devices acting in substantially opposite directions.
  • two substantially opposite telescopic-shot locks can be unlocked and locked by means of the unlocking device.
  • the coupling of the telescopic sections to the locking head can be done at two opposite locations.
  • the effective directions of the unlocking and the coupling devices extend transversely, in particular perpendicular to the actuating direction of the actuating member.
  • these may be substantially parallel to each other. In particular, these may be substantially horizontal in the installed state of the locking head.
  • the resetting movements can be understood as the movements in which the coupling device is moved out of the coupling or out of the engagement of the locking head with a telescopic weft or the unlocking device moves the telescopic weft locking into a locked position between individual telescopic sections.
  • both the positive guide / link for the unlocking and the positive guide / link for the coupling device are arranged in a substantially planar portion of the actuator, so extend substantially in the same plane.
  • a substantially same extent start or end points of these scenes at a substantially same height along the direction of movement of the actuating element of these scenes is held.
  • the actuating member be designed such that the telescopic shot locking is released only after the coupling of the respective telescopic section to the locking head or the telescoping device and the coupling after the locking of the respective telescopic section with another telescopic section.
  • the actuating member is moved relative to the main body by means of a hydraulic cylinder.
  • a hydraulic cylinder it is also conceivable to provide any other means suitable for this function, for example electrical, hydraulic or pneumatic drives, in particular linear drives. So it can also be used as electric, hydraulic or pneumatic motors as well as pneumatic cylinders. Since the actuator is the only element required for the actuation of the coupling device and the locking device, the cylinder (s) acting on the actuator (s) are consequently the only power source for the locking and coupling
  • a double-acting hydraulic cylinder can be provided, by means of which the actuating member and thus the unlocking device and the coupling device is actuated.
  • the double-acting hydraulic cylinder can be configured together with the actuator such that at a middle position, ie a lying approximately midway between the maximum deflections position of the piston in the hydraulic cylinder, the locking head is coupled to the respective telescopic shot, while this telescopic shot additionally locked with the next outer telescopic section is.
  • the locking head comprises a restoring device, which transfers the actuating member into a basic position.
  • This can be a basic position in which the unlocking device unlocks no locking and the coupling device does not couple a telescopic section to the locking head or the telescoping device.
  • preference is given to a basic position in which the respective telescopic section used is "double-secured" as described above.
  • Another aspect of the present invention relates to a crane, in particular a mobile crane, with a telescope comprising at least two telescopic sections, in particular a telescopic crane boom and a locking head associated with the telescope according to one of the embodiments described above.
  • FIG. 1 shows an embodiment of the locking head 2 according to the invention, which can be moved by means of the telescoping cylinder 1 inside a telescopic boom (not shown).
  • the locking head 2 is located at one end of the telescoping cylinder 1 and is firmly connected thereto.
  • the main body 3 forms the central structure of the locking head 2 and receives substantially all other elements of the locking head 2 or stores them.
  • the locking head 2 On both sides of the locking head 2 guides for bolts 5 d of the coupling devices 5 are provided, wherein the direction of movement of the bolt 5 d is perpendicular to the direction of movement of the locking head 2.
  • the locking head 2 is coupled with a telescopic weft to be retracted or retracted by the locking bolts 5d engaging in corresponding receptacles on the telescopic weft.
  • the locking head 2 two in the installed position of the locking head 2 above unlocking means 4, each comprising two levers 4b, which are movable about a arranged on the base body 3 pivot bearing.
  • the levers 4b of the unlocking devices 4 are connected at their ends facing away from the base body 3 by means of not further designated attack sections which can engage in corresponding receptacles of a telescopic-shot lock.
  • the locking head 2 further comprises an actuating member 6, which can be moved parallel to the direction of movement of the locking head 2 and relative to the base body 3.
  • actuating member 6 which can be moved parallel to the direction of movement of the locking head 2 and relative to the base body 3.
  • a arranged next to the telescoping cylinder 1 and the locking head 2 associated hydraulic cylinder 7 is provided, which upon extension, the actuator 6 forward (in the FIG. 1 down to the left).
  • tension springs 8 are further provided, which convert the actuator 6 back into a basic position or the cylinder 7 at least support this.
  • the actuating member 6 has a forced guidance or a sliding guide 4c, 5c for both the coupling and the unlocking devices, in which corresponding elements 4a, 5a of the unlocking devices 4 or the coupling devices 5 engage. It is to be regarded as particularly advantageous here that the elements 4a and 5a engage from different sides into the sliding guides 4c, 5c of the actuating member 6, since in this way the actuating member 6 can be arranged in a space-saving manner between the locking mechanism and the coupling mechanism. Thus, neither the unlocking device nor the coupling device must engage through the respective other or past the actuating member 6. The movement of the actuator 6 along the longitudinal axis of the cantilever also contributes to this space saving solution, such as the flat, horizontal orientation of the actuator 6.
  • FIG. 2 is the slide guide 4c, 5c of the actuator to recognize.
  • the bolts 5d of the coupling devices 5 are moved radially outwards, ie out of the main body 3, as soon as the actuator 6 moves out of its basic position in the FIG. 2 is moved to the left.
  • the coupling devices 5 immediately after actuation of the actuator 6 the coupling of the locking head 2 takes place at a surrounding telescopic section.
  • the elements 5a are coupled directly to the bolt 5d, so that the bolts 5d are moved outwards as soon as the elements 5a are displaced outwards by means of the slotted guide 5c. The reverse operation is carried out accordingly.
  • the guides 4c and 5c are “nested” in one another, so their more outer sections so at the same end of the actuator 6 (in the FIG. 2 on the right side), as well as their further inner sections (in the FIG. 2 Left).
  • the double slide guide 4c, 5c builds very compact, since the scenes can be arranged close to each other. Irrespective thereof, this also contributes to the fact that the slotted guides 4c, 5c extend horizontally, thus effecting an actuation of the elements engaging therein along a horizontal direction.
  • FIGS. 5A to 5C an alternative embodiment of the locking head according to the invention in different positions is shown schematically.
  • the hydraulic cylinder 7 and thus also the actuating member 6 are in a middle position, ie an actuation in both the one and in the other direction is possible.
  • this middle position the locking head is coupled both to the innermost telescopic section via the coupling device 5, while this telescopic section is also locked to the next outer telescopic section.
  • the in the FIG. 5A shown position is reached only when the hydraulic cylinder 7 of the in the FIG. 5B shown maximum deflection, in which the locking head is not yet coupled to the telescopic section and thus can be moved within the boom, is brought into the center position.
  • the two telescopic sections are unlocked from each other by means of the unlocking device 4, while the inner telescopic section is still coupled to the locking head. In this position, the telescopic section can ultimately be moved by means of the telescoping cylinder.
  • the restoring device shown schematically by means of two springs 8 always strives to spend the hydraulic cylinder 7 and thus also the actuating member in the center position, so that the respective telescopic shot is secured by both the next outer telescopic section and the locking head.
  • FIG. 6 there is seen a double acting hydraulic cylinder 7 fed by the hydraulic fluid feeds 7b and 7c.
  • the restoring device in the form of a spring 8 is arranged between two spring plates 8a and 8b and always brings the piston rod into a central position, from which the hydraulic cylinder 7 retracts (pressurization of the annular chamber with hydraulic fluid through the Feeder 7c) and extended (admission of the annular chamber through the supply 7b) can be.
  • FIG. 7 an alternative embodiment of the locking head according to the invention is shown in different operating positions, the in the FIG. 4 shown positions correspond to the first embodiment.
  • the left figure shows the telescope in a bolted and secured configuration, while the middle figure bolted and unlocked the telescope and the right figure, the telescope bolted and secured shows.
  • FIG. 8 a perspective view of the alternative embodiment of the locking head according to the invention.
  • This embodiment substantially corresponds to that in the FIG. 1 shown, but with a double-acting hydraulic cylinder instead of the single-acting hydraulic cylinder in the FIG. 1 .
  • the double-acting hydraulic cylinder 7 also comprises the return device 8, which is designed here as a spring 8 concentric with the hydraulic cylinder 7.
  • the FIGS. 9 and 10 essentially correspond to the FIGS. 3 and 2 and show the alternative embodiment with a double acting hydraulic cylinder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Claims (14)

  1. Tête de verrouillage, qui est configurée de manière à pouvoir être déplacée au moyen d'un dispositif télescopique (1) à l'intérieur et le long de l'axe longitudinal d'un télescope comprenant au moins deux tronçons de télescope, avec un corps de base (3), au moins un dispositif de déverrouillage (4) configuré pour déverrouiller un verrouillage de tronçon de télescope et au moins un dispositif de couplage (5) configuré pour coupler un tronçon de télescope au dispositif télescopique (1), dans laquelle la tête de verrouillage (2) présente un organe d'actionnement (6) agissant mécaniquement sur le dispositif de déverrouillage (4) et le dispositif de couplage (5) afin d'actionner le dispositif de déverrouillage (4) et le dispositif de couplage (5), avec un premier guidage à coulisse (4c) pour le dispositif de déverrouillage (4) et d'un deuxième guidage à coulisse (5c) pour le dispositif de couplage, dans laquelle les coulisses pour le premier et le deuxième guidage à coulisse (4c, 5c) s'étendent dans un unique plan ou dans des plans parallèles, caractérisée en ce que
    le premier guidage à coulisse (4c) et le deuxième guidage à coulisse (5c) forment un guidage forcé agissant sur le dispositif de déverrouillage (4) ou sur le dispositif de couplage (5) dans une direction d'actionnement et dans une direction de rappel opposée.
  2. Tête de verrouillage selon la revendication 1, dans laquelle l'organe d'actionnement (6) est configuré de manière mobile par rapport au corps de base (3), en particulier de manière mobile par translation.
  3. Tête de verrouillage selon l'une quelconque des revendications 1 ou 2, dans laquelle le dispositif de déverrouillage (4) et/ou le dispositif de couplage (5) comprend/comprennent au moins un élément (4a, 5a) guidé de manière mobile, en particulier de manière mobile par translation, par rapport au corps de base (3), au moyen duquel élément l'organe d'actionnement (6) agit sur le dispositif de déverrouillage (4) ou le dispositif de couplage (5).
  4. Tête de verrouillage selon la revendication 3, dans laquelle l'élément (4a, 5a) est guidé dans une direction, qui s'étend de manière transversale, en particulier de manière perpendiculaire par rapport à la direction de déplacement par translation de l'organe d'actionnement (6).
  5. Tête de verrouillage selon l'une quelconque des revendications 3 ou 4, dans laquelle le dispositif de déverrouillage (4) comprend un élément (4b) articulé autour d'un support fixe par rapport au corps de base (3), lequel élément couple le mouvement de l'élément (4a) guidé de manière mobile du dispositif de déverrouillage (4) au mouvement du verrouillage de tronçon de télescope.
  6. Tête de verrouillage selon l'une quelconque des revendications 1 à 5, avec deux dispositifs de déverrouillage (4) ou de couplage (5) agissant dans sensiblement des directions opposées, en particulier dans laquelle les directions d'action des dispositifs de déverrouillage (4) ou de couplage (5) s'étendent sensiblement de manière parallèle, de manière spécifique sensiblement de manière horizontale dans l'état monté de la tête de verrouillage.
  7. Tête de verrouillage selon l'une quelconque des revendications 1 à 6, dans laquelle l'organe d'actionnement (6), en particulier le guidage forcé (4c) et (5c) est configuré de telle sorte que le verrouillage de tronçon de télescope est déclenché seulement après le couplage du tronçon de télescope concerné au dispositif télescopique (1) et le couplage est déclenché seulement après le verrouillage du tronçon de télescope concerné à un autre tronçon de télescope.
  8. Tête de verrouillage selon l'une quelconque des revendications 1 à 7, dans laquelle l'organe d'actionnement (6) est déplacé au moyen d'un vérin hydraulique (7) par rapport au corps de base (3).
  9. Tête de verrouillage selon la revendication 8, dans laquelle le vérin hydraulique (7) est un vérin hydraulique (7) à double action.
  10. Tête de verrouillage selon l'une quelconque des revendications 1 à 9, dans laquelle est prévue pour l'organe d'actionnement (6) une position de base, en particulier dans laquelle le vérin hydraulique (7) à double action se trouve dans une position centrale et/ou le dispositif de déverrouillage (4) se trouve dans une position de verrouillage et le dispositif de couplage (5) se trouve dans une position de couplage.
  11. Tête de verrouillage selon la revendication 10, avec en outre un dispositif de rappel (8), qui tend à transférer l'organe d'actionnement (6) dans la position de base.
  12. Tête de verrouillage selon la revendication 11, dans laquelle le dispositif de rappel (8) est formé par au moins un ressort.
  13. Grue, en particulier grue mobile, avec un télescope comprenant au moins deux tronçons de télescope, en particulier une flèche de grue télescopique, et une tête de verrouillage associée au télescope selon l'une quelconque des revendications 1 à 12.
  14. Utilisation d'une tête de verrouillage selon l'une quelconque des revendications 1 à 12, servant à actionner un verrouillage entre un tronçon de télescope à déplacer d'une flèche de grue et un tronçon de télescope extérieur qui suit, et servant à coupler le tronçon de télescope à déplacer à un vérin télescopique.
EP13179854.8A 2013-08-09 2013-08-09 Tête de verrouillage mécanique Active EP2835336B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES13179854.8T ES2667327T3 (es) 2013-08-09 2013-08-09 Cabeza de bloqueo mecánica
EP13179854.8A EP2835336B1 (fr) 2013-08-09 2013-08-09 Tête de verrouillage mécanique
JP2014148702A JP6192612B2 (ja) 2013-08-09 2014-07-22 機械式のロックヘッド
CA2857468A CA2857468A1 (fr) 2013-08-09 2014-07-22 Tete a verrouillage mecanique
BR102014018694A BR102014018694A2 (pt) 2013-08-09 2014-07-29 cabeça de travamento, e, guindaste
US14/455,688 US10322915B2 (en) 2013-08-09 2014-08-08 Mechanical locking head
CN201410389247.7A CN104340883B (zh) 2013-08-09 2014-08-08 机械锁定头

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13179854.8A EP2835336B1 (fr) 2013-08-09 2013-08-09 Tête de verrouillage mécanique

Publications (2)

Publication Number Publication Date
EP2835336A1 EP2835336A1 (fr) 2015-02-11
EP2835336B1 true EP2835336B1 (fr) 2018-02-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13179854.8A Active EP2835336B1 (fr) 2013-08-09 2013-08-09 Tête de verrouillage mécanique

Country Status (7)

Country Link
US (1) US10322915B2 (fr)
EP (1) EP2835336B1 (fr)
JP (1) JP6192612B2 (fr)
CN (1) CN104340883B (fr)
BR (1) BR102014018694A2 (fr)
CA (1) CA2857468A1 (fr)
ES (1) ES2667327T3 (fr)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
DE102021203701B3 (de) 2021-04-14 2022-09-15 Tadano Faun Gmbh Hydraulik-Stellantrieb für eine Verriegelungsvorrichtung eines Teleskopauslegers, Verriegelungsvorrichtung, Teleskopausleger, Mobilkran und Verfahren zur Verstellung eines Teleskopauslegers
DE102021203700A1 (de) 2021-04-14 2022-10-20 Tadano Faun Gmbh Verriegelungsvorrichtung für einen Teleskopausleger, Teleskopausleger und Mobilkran

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DE202013010381U1 (de) 2013-11-11 2013-11-26 Terex Cranes Germany Gmbh Antrieb einer Schiebekulisse eines Verriegelungssystems eines Teleskopiersystems eines Kranauslegers
JP6627898B2 (ja) * 2018-02-16 2020-01-08 株式会社タダノ クレーン
JP6665874B2 (ja) * 2018-02-16 2020-03-13 株式会社タダノ クレーン
WO2019178067A1 (fr) 2018-03-12 2019-09-19 Manitowoc Crane Companies, Llc Flèche de grue télescopique à broches
IT201800020221A1 (it) * 2018-12-19 2020-06-19 Cifa Spa Braccio telescopico per gru e gru comprendente tale braccio
CN113646251B (zh) * 2019-04-04 2024-04-09 株式会社多田野 作业机
EP3757054B1 (fr) * 2019-06-24 2023-08-02 Manitowoc Crane Companies, LLC Ensemble d'actionnement électrique d'une flèche fixée sur une grue
CN111532422B (zh) * 2020-04-17 2023-07-28 贵州新安航空机械有限责任公司 一种直升机前机轮双向液压锁定机构

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DE102021203701B3 (de) 2021-04-14 2022-09-15 Tadano Faun Gmbh Hydraulik-Stellantrieb für eine Verriegelungsvorrichtung eines Teleskopauslegers, Verriegelungsvorrichtung, Teleskopausleger, Mobilkran und Verfahren zur Verstellung eines Teleskopauslegers
DE102021203700A1 (de) 2021-04-14 2022-10-20 Tadano Faun Gmbh Verriegelungsvorrichtung für einen Teleskopausleger, Teleskopausleger und Mobilkran
US11795039B2 (en) 2021-04-14 2023-10-24 Tadano Faun Gmbh Locking device for a telescopic boom, telescopic boom, and mobile crane
US11897736B2 (en) 2021-04-14 2024-02-13 Tadano Faun Gmbh Hydraulic actuator for a locking device of a telescopic boom, locking device, telescopic boom, mobile crane, and method for adjusting a telescopic boom

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CN104340883A (zh) 2015-02-11
BR102014018694A2 (pt) 2015-09-29
CN104340883B (zh) 2017-12-15
JP2015036344A (ja) 2015-02-23
CA2857468A1 (fr) 2015-02-09
EP2835336A1 (fr) 2015-02-11
US20150041422A1 (en) 2015-02-12
ES2667327T3 (es) 2018-05-10
US10322915B2 (en) 2019-06-18
JP6192612B2 (ja) 2017-09-06

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