• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a lifting device (1) for vertical lifting of loads, wherein a lifting column (16) by a plurality of each articulated interconnected and in a vertical stroke position at least partially abutting chain links (2) is formed, wherein the chain links (2) on a substantially parallel to a hinge axis (3) of the articulated connection surface profiling (6), which with an example provided with a pinion or the like. Drive (5) for raising and lowering the chain links (2) of the lifting column (16) cooperates, wherein the chain links (2) from a particular substantially horizontal rest position in the vertical stroke position by being acted upon by the drive (5) are deflected, is provided that adjacent chain links (2) in the vertical stroke position locked together. can be locked, whereby a buckling of the chain links (2) formed in the erected or vertical lifting position lifting column (16) can be safely avoided even in off-center loads in the horizontal direction.
    公开号:AT511378A1
    申请号:T6102011
    申请日:2011-05-02
    公开日:2012-11-15
    发明作者:
    申请人:Waagner Biro Austria Stage Systems Ag；
    IPC主号:
    专利说明:

    -* 1 *
    The present invention relates to a lifting device for vertical lifting of loads, wherein a lifting column of a plurality of each articulated interconnected and in a vertical stroke position at least partially adjacent chain links is formed, wherein the chain links at a substantially parallel to a hinge axis of articulated connection surface have a profiling, which cooperates with an example provided with a pinion or the like. Drive for raising and lowering the chain links of the lifting column, the chain links deflected from a particular substantially horizontal rest position in the vertical stroke position by being acted upon by the drive are.
    Such a lifting device can be seen, for example, EP-B 1 006 074, wherein the lifting column consists of two parallel, provided with joints flanks, which are formed in a complex construction for forming in a vertical stroke position at least partially adjacent to each other chain links. In this known lifting device or this known lifting system is particularly disadvantageous that no locking of adjacent chain links is provided in the erected or vertical position, so that a bending upper connection of the lifting column formed by the chain links with, for example, a platform is required to avoid buckling movements , Due to the lack of a lock stresses beyond loads in a horizontal direction are not tolerated, so that use of such lifting devices is severely limited. In addition, usually no commercially available components or suspension means for producing such a lifting device can be used.
    The present invention aims to improve a lifting device of the type mentioned in that the above-mentioned problems of the prior art are avoided and are largely reduced and that in particular in the vertical or upright position or stroke position optionally off-center or horizontal loads or stresses a safe and reliable support of loads by the lifting device is provided.
    To solve these objects, a lifting device of the type mentioned is essentially characterized in that adjacent chain links are locked or locked together in the vertical stroke position. Characterized in that adjacent chain links according to the invention in the vertical stroke position are locked or locked together, in contrast to the known prior art, especially in the occurrence of horizontal stresses or loads possible buckling in the upright or lifting position safely avoided, so that beyond a lifting of possibly larger loads over large lifting heights is possible. By inventively provided locking of adjacent chain links in the erected or vertical lifting position can thus be dispensed unlike the prior art on a rigid connection, for example, to the uppermost chain link platform, so that, for example, a swivel, optionally flexible upper support connection possible will be discussed in detail below. It can thus be provided by the inventively provided locking a much more stable lifting or supporting system, in which not only by ensuring the vertical or upright position by the inventively provided locking a higher load application or recording is possible, but also any occurring horizontal loads or stresses can be safely absorbed. According to the invention can be reliably avoided that, in particular by such horizontal loads or stresses kinking or pivoting between adjacent chain links in the vertical or erect lifting position occurs, so that the lifting device according to the invention can take on the same load or load in both horizontal axes.
    To further support the locking position and to ensure a properly locked in the upright or vertical position position adjacent chain links is provided according to a further preferred embodiment, that an automatic locking of adjacent chain links is provided upon reaching the vertical stroke position. Thus, by raising or extending the chain links into the erected or vertical position, a lock is automatically provided between adjacent chain links. For further automation of the use of the lifting device according to the invention is also provided that when lowering the lifting column formed by the chain links an automatic unlocking of adjacent chain links is provided before deflecting in the substantially horizontal rest position, as a further preferred embodiment of the lifting device according to the invention equivalent. Thus, not only in an erecting or extending the chain links in the vertical stroke position, as mentioned above, an automatic or automatic locking ensures, but it can at a retraction or retraction of the chain links in a substantially horizontal waiting or rest position also automatically an automatic unlocking of adjacent chain links are provided. In this context, it is essential according to the invention that such an unlocking is carried out essentially in a relieved condition of adjacent chain links. For a particularly simple and reliable locking of adjacent chain links, at least in the vertical or upright lifting position, it is proposed according to a further preferred embodiment that adjacent chain links are locked in the vertical lifting position via at least one protrusion or bolt projecting from an end face of a chain link. are connected, which engages in at least one complementary recess or depression in an adjacent end face of the adjacent chain link. By such an extension or bolt on an end face of a chain link, wherein the at least one pin or extension engages in a corresponding or complementary recess or depression on the adjacent end face of the adjacent chain link, a reliable locking in the upright or upright Position of the chain links provided.
    In particular, for receiving correspondingly high loads, it is proposed according to a further preferred embodiment that the at least one bolt and the at least one complementary recess are respectively provided in a partial region of the end face of the chain links which is remote from the hinge axis for the articulated connection of the adjacent chain links.
    To increase the security of the locking is also proposed that cooperates in the vertical stroke position of at least one bolt with a locking mechanism, which is preferably provided or formed in the complementary recess, as corresponds to a further preferred embodiment of the lifting device according to the invention. For an automatic locking of adjacent chain links, it is proposed according to an alternative, preferred embodiment of the invention to provide a locking element formed by a lever which is pivotably articulated in an upright position, in particular on an upper portion of a chain link, which locking element is reached after reaching the vertical lifting position of the chain link a position can be pivoted in which it interacts at the end remote from the pivot axis of the lever with a complementary locking element formed by a set or bolt, for example, which is provided in the lower portion of the adjacent and preceding chain link is arranged. Thus, by forming a Verrie gelungselements as a pivotally hinged lever immediately upon extension or erection of the lifting device according to the invention an automatic locking of adjacent chain links can be achieved. While a locking element is essentially sufficient for a locking between adjacent chain links, for uniform load distribution and to avoid overstressing, in particular in the area of the locking element, cooperating locking elements are arranged on two surfaces of adjacent chain links facing outwards and in particular perpendicular to the articulation axis are provided, as corresponds to a further preferred embodiment of the lifting device according to the invention. For automation of the locking and unlocking operation, moreover, according to a further preferred embodiment, it is proposed that, in addition to a known positive guidance of the chain links for a deflection of the in particular substantially horizontal rest position into the vertical lifting position, a forced guidance for a locking or closing Unlocking the at least one locking element is provided. Such positive guides can be matched to each other for the movement of the chain links as well as the unlocking or locking movement of the at least one locking member in a simple manner.
    In this context, it is proposed according to a particularly preferred embodiment that the positive guidance is formed by a link or track, in which a protruding from the locking element driver is guided, its movement in the positive guide upon reaching the vertical lifting posi- tion pivoting of the locking element causes in a locked or locked with the adjacent chain link position. Such a backdrop or web can be integrated in a simple and reliable manner in the area in particular the deflection of the chain links from a substantially horizontal rest position in an upright or vertical position, so that with simple means a reliable automated locking adjacent links together and unlocking can be made available from each other.
    In particular, to enable the use of substantially commercially available components or support means is also proposed that the chain links are formed by rack, spindle or drive rod elements or provided with rack, spindle or drive rod elements, which cooperate with the drive, as this a further preferred embodiment of the lifting device according to the invention corresponds.
    For further flexibility of the use of the lifting device according to the invention is provided according to a further preferred embodiment that the pitch of the chain links is independent of the pitch of a drive element selectable.
    As already indicated above, in the lifting device according to the invention by the locking of adjacent chain links, an improved coupling with a platform or supporting device for a load to be picked up or sustained, wherein according to a further preferred embodiment it is proposed that a platform with a top or ., First chain link can be coupled via an articulated connection. In this context, it is further preferably proposed that a coupling with two degrees of freedom is provided between the platform and the uppermost chain link.
    The invention will be discussed in more detail with reference to embodiments shown schematically in the accompanying drawings. In this show: - '7 • «
    1 shows a section through a first embodiment of a lifting device according to the invention using spindle elements as chain links.
    Figure 2 is a section along the line II-II of Figure 1, in particular, a lock of adjacent chain links in the upright or vertical position can be seen.
    Fig. 3 in a view similar to Figure 1 is a partial view of a modified embodiment of a lifting device, wherein chain links are formed by rack members which can be locked via lever-like locking elements in the upright position or stroke position; and
    Fig. 4 is a detail section through the region of two adjacent chain links, in particular, the arrangement of the lever-like locking elements can be seen.
    In Fig. 1 and 2 is generally designated 1 a lifting device, wherein a plurality of each designated 2, each formed by a spindle element chain links is provided.
    The adjacent spindle elements or chain links 2 are articulated to each other via a joint or a hinge axis 3, wherein the individual chain links or spindle elements 2 can be erected from a substantially horizontal rest position in a magazine 4 in an upright or vertical lifting position.
    An erection of the Spindeleleraente or chain links 2 via a schematically indicated with 5 drive, for example in the form of a worm wheel, wherein on the outer side of the chain links or spindle elements 2 provided teeth or profiles are denoted by 6.
    A platform 7 for receiving or supporting a load (not shown) is connected schematically to the uppermost chain link or spindle element 2.
    From Fig. 1 it can be seen that a deflection of the substantially horizontal rest position of the spindle elements 2 from * »« * * · «
    the magazine 4 takes place in an upright or vertical lifting position in the region of a deflection formed by a positive guide 8. According to the desired height of the lifting column formed by the chain links or spindle elements 2, which is generally designated 16, there is a raising and lowering of the platform 7 for supporting the load, as indicated by the double arrow 9. It can be provided in this case an articulated coupling, in particular with two degrees of freedom between the platform 7 and the uppermost chain link 2.
    In order to avoid buckling of adjacent spindle elements or chain links 2 even in the case of an eccentric load or a stress in the horizontal direction, it is provided in the embodiment shown in FIGS. 1 and 2 that in each case one end face 10 of a chain link 2 in the illustrated embodiment protrude two projections or bolts 11, which cooperate at least in the erected or vertical lifting position of the lifting device 1 formed on the adjacent end face 13 of an adjacent chain link 2 recesses or recesses 12 and enter into this.
    In Fig. 2, a cooperating in the erected state with the ends of the bolts or extensions 11 Ver-locking mechanism 14 is also indicated in each recess 12.
    An automatic locking or entry of the bolts 11 into the respective recess 12 is effected by a movement of the chain links or spindle elements 2 in the region of the deflection or the positive guide 8, as can be seen in particular from the illustration according to FIG.
    In order to receive corresponding forces or loads, in particular when small-sized locking elements 11 and 12 are used, it can also be seen that both the pins or extensions 11 and the recesses or recesses 12 cooperating therewith in partial regions of the end faces 11 and 13 of the chain links 2 are provided, which of the • · · II «··» * · ι * ··· * «• * 1 * · · · · · * * * * g * * * f
    Joint axis 3 between adjacent chain links spaced or removed.
    In Fig. 1 and 2, a housing 15 is also indicated schematically for the drive and in the region of the deflection.
    In Fig. 3 a modified embodiment of a lifting device 21 is shown, wherein in contrast to the embodiment according to FIGS. 1 and 2, the individual chain links 22 are formed by rack elements. The adjacent chain links or rack elements 22 are each in turn articulated to each other via a hinge axis 23, wherein a movement of the rack members 22 from a substantially horizontal rest position from a schematically indicated magazine 24 in an upright or vertical stroke position on one of a pinion 25 formed Drive takes place. The pinion 25 acts in this case with a profiling or toothing 26 of the chain links or rack elements 22 together, with a support or. Pressure roller is designated 38.
    The deflection of a substantially horizontal rest position in the upright or vertical lifting position is also in the embodiment of FIG. 3 via a positive guide 27, in which in particular hinge pin of the hinge axis 23 are guided. For a locking of adjacent rack elements or chain links 22 is provided in the embodiment according to FIGS. 3 and 4, that on outer surfaces 28 each in the vertical stroke position lower or subsequent rack member 22, a lever-like locking member 29 is pivotable about a pivot axis 30, wherein the Pivot axis 30 is provided in a side facing away from the hinge axis 23 upper portion of this rack member or chain link 22.
    The lever-like locking element 29 has at its end facing away from the hinge axis 30 a driver or a roller 31, which in a positive guide 32 in the region of the deflection of a horizontal rest position in a vertical 10th
    Hubposition is guided. About the driver 31 takes place in the area of taking a vertical stroke position, in which end faces 33 and 34 adjacent chain links 22 come into abutment, by a corresponding backdrop or cranked path 35 pivoting the lever-like locking element 29 into a position in which the free end of the locking element 29 formed by the lever cooperates with a pin or an axle 36, which is also provided on the adjacent chain link in the region of the end face 34 and remote from the hinge axis 23.
    By the positive guide 32 and the cranked or curved end portion of the web 35 is carried out at an extension in the vertical stroke position automatic or automated and forced locking by engagement of the free end of the lever-like locking element 29 in the complementary locking element 36 on the adjacent chain link 22nd Likewise, upon retraction into the substantially horizontal rest position, prior to deflecting the respective chain link 22, the lock is released by the curved portion 35 of the positive guide 32.
    From Fig. 4 it is particularly apparent that on both sides of the adjacent chain links 22 each such locking element is provided for locking in the upright or vertical stroke position.
    Thus, even in the embodiment according to FIGS. 3 and 4, an automatic locking of adjacent chain links 22 takes place at least in the vertical or upright lifting position, so that buckling of the lifting column 37, which is formed by the chain links or rack elements 22 in the erected position , can be safely avoided even with off-center loads or horizontal loads or stresses.
    An unspecified upper end of the lifting column 37 serves, for example, similar to the embodiment according to • • • - 11 -
    Fig. 1 and 2, for coupling with a platform for receiving and supporting a load.
    权利要求:
    Claims (14)
    [1]
    12 CLAIMS 1. Lifting device for vertical lifting of loads, wherein a lifting column of a plurality of each articulated interconnected and in a vertical stroke position at least partially adjacent chain links is formed, wherein the chain links at a substantially parallel to a Ge-steering axis of the articulated Connection lying surface have a profiling, which cooperates with an example provided with a pinion or the like. Drive for raising and lowering the chain links of the lifting column, the chain links are deflected by a particular substantially horizontal rest position in the vertical stroke position by being acted upon by the drive , characterized in that adjacent chain links (2, 22) are locked or locked together in the vertical lifting position.
    [2]
    2. Lifting device according to claim 1, characterized in that an automatic locking of adjacent chain links (2, 22} is provided upon reaching the vertical stroke position.
    [3]
    3. Lifting device according to claim 1 or 2, characterized in that at a lowering of the chain links (2, 22) formed lifting column {16, 37) an automatic unlocking of adjacent chain links (2, 22) before deflecting in the substantially horizontal rest position is provided.
    [4]
    4. Lifting device according to claim 1, 2 or 3, characterized in that adjacent chain links (2) in the vertical lifting position via at least one of an end face (10) of a chain link (2) projecting extension or bolt (11) is locked or are connected, which in at least one complementary recess b2w. Recess (12) in an adjacent end face (13) of the adjacent chain link (2) engages.
    [5]
    5. Lifting device according to claim 4, characterized in that the at least one bolt (11) and the at least one ·· ·· t · · · · · · · ♦

    complementary recess (12) in each case in a partial region of the end face (10, 13) of the chain links (2) are provided, which is remote from the hinge axis (3) for articulated connection of the adjacent chain links (2).
    [6]
    6. Lifting device according to claim 4 or 5, characterized in that in the vertical lifting position the at least one bolt (11) cooperates with a locking mechanism (14), which is preferably provided or formed in the complementary recess (12).
    [7]
    7. Lifting device according to claim 1, 2 or 3, characterized in that one of a in an upright position, in particular at an upper portion of a chain link (22) pivotally hinged lever formed locking element (29) is provided, which after reaching the vertical stroke position the chain link (22) is pivotable into a position in which it cooperates on the end remote from the pivot axis (30) of the lever (29) with a complementary locking element (36) formed, for example, by an extension or bolt, which in particular in the lower Part of the adjacent and preceding chain link (22) is provided or arranged.
    [8]
    8. Lifting device according to claim 7, characterized in that mutually cooperating locking elements (29, 36) on each two outwardly facing and in particular normal to the hinge axis (23) stationary surfaces (28) of adjacent chain links (22) are provided.
    [9]
    9. Lifting device according to claim 7 or 8, characterized in that in addition to a known positive guide (27) of the chain links (22) for a deflection of the particular substantially horizontal rest position in the vertical stroke position a positive guide (35) for locking or Unlocking the at least one locking element (29) is provided. • «


    [10]
    10. Lifting device according to claim 9, characterized in that the positive guide (35) is formed by a slide or track, in which a of the Verriegelungseleinent (29) projecting driver (31) is guided, whose movement in the forced operation (35) Upon reaching the vertical lifting position, pivoting of the locking element (29) into a position locking or locking the adjacent chain link (29) is effected.
    [11]
    11. Lifting device according to one of claims 1 to 10, characterized in that the chain links (2, 22) are formed by rack, spindle or driving stick elements or provided with rack, spindle or driving stick elements, which with the drive (5, 25) Cooperation.
    [12]
    12. Lifting device according to one of claims 1 to 11, characterized in that the division of the chain links (2, 22) independently of the pitch of a drive element (5, 25) is selectable.
    [13]
    13. Lifting device according to one of claims 1 to 12, characterized in that a platform (7) with a top or first chain link {2, 22) can be coupled via an articulated connection.
    [14]
    14. Lifting device according to claim 13, characterized in that a coupling with two degrees of freedom is provided between the platform (7) and the uppermost chain link (2, 22). Vienna, 2 May 2011

    Waag r-Biro Austria tanwalt y KG Stage
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    引用文献:
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    US1870244A|1928-10-29|1932-08-09|Arthur E Elston|Lifting jack|
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    DE10103490A1|2001-01-26|2002-08-14|Walter Gobbers|Toothed rack, to be operated by a rotating pinion, is composed of a number of interconnected links for flexibility on a curved path, and with drillings for locking bolts which act automatically on a straight path|
    DE102006059711A1|2006-12-18|2008-06-26|Iht-Innovative Hebe Technik Gmbh|Lifting mechanism, for heavy loads, has an extending lifting mast formed by links bonded into a stiff structure and move by the pinion of a rotary drive|
    US3742775A|1972-02-23|1973-07-03|Gen Motors Corp|Stiff back roller chain device|
    GB1340546A|1972-06-16|1973-12-12|Mercer Pneumatic Tools Ltd|Bar feed mechanism|
    DE2816722C3|1978-04-18|1981-01-08|Christian Zuerich Ragettli |Device for internal and external calibration as well as for straightening pipe sections|
    DE3419477C1|1984-05-24|1985-11-28|Hörmann KG Antriebs- und Steuerungstechnik, 4834 Harsewinkel|Gearbox for converting a rotary into a translatory movement|
    DE102006018965A1|2006-04-19|2007-10-25|Karl Neff|Retractable column|
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    DE102016000566A1|2016-01-20|2017-07-20|Iwis Antriebssysteme Gmbh & Co. Kg|Actuator with hollow screw|
    EP3404289A1|2017-05-15|2018-11-21|K+G Pneumatik GmbH|Push resistant thrust chain actuated with chain transmission|
    CN111453641B|2020-05-13|2022-01-11|点栈智能科技有限公司|Robot jacking device suitable for high-expansion ratio, high-precision and high-rigidity supporting occasions|
    法律状态:
    2019-01-15| MM01| Lapse because of not paying annual fees|Effective date: 20180502 |
    优先权:
    申请号 | 申请日 | 专利标题
    AT6102011A|AT511378B1|2011-05-02|2011-05-02|LIFTING DEVICE FOR VERTICALLY RAISING LOADS|AT6102011A| AT511378B1|2011-05-02|2011-05-02|LIFTING DEVICE FOR VERTICALLY RAISING LOADS|
    EP12450025.7A| EP2520827B1|2011-05-02|2012-04-26|Lifting device for lifting loads vertically|
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