EP3757057A1 - Lifting platform and support column of a lifting platform - Google Patents
Lifting platform and support column of a lifting platform Download PDFInfo
- Publication number
- EP3757057A1 EP3757057A1 EP20167227.6A EP20167227A EP3757057A1 EP 3757057 A1 EP3757057 A1 EP 3757057A1 EP 20167227 A EP20167227 A EP 20167227A EP 3757057 A1 EP3757057 A1 EP 3757057A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support column
- hollow
- longitudinal
- support
- lifting
- 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.)
- Pending
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- 238000005096 rolling process Methods 0.000 claims description 22
- 238000007373 indentation Methods 0.000 claims description 20
- 238000009434 installation Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 230000010354 integration Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003351 stiffener Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
- B66F7/025—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars screw operated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
Definitions
- the present patent application relates in particular to an improved support column for a lifting platform for lifting motor vehicles.
- the support column has a higher flexural rigidity with less structural complexity and improved space efficiency.
- Vehicles such as passenger cars are brought into a raised position by means of lifting platforms and support elements that are movably attached to the lifting platform in order to be able to carry out maintenance or repair work on the lifted vehicle.
- So-called column lifts have between one and more vertically erected support columns on which support elements, e.g. Support arms are mounted so that they can move vertically.
- the support arms are moved by means of a lifting spindle which is rotated by a drive, as a result of which a lifting slide attached to the lifting spindle is moved along the longitudinal axis of the lifting spindle.
- the support pillars take on several functions in a post lift and must, among other things, absorb the forces and moments that arise when a motor vehicle is lifted, as well as safely store, guide, absorb and the like.
- stiffeners are installed on or in the support columns in a known manner, which, however, entail additional installation effort and space requirements.
- the attachment and accommodation of assemblies on or in the support column, such as cable harnesses, lifting carriage, control unit, drive device and the like, also require further extensive structural adaptations that lead to complex assembly and increased space requirements.
- the support column can have a hollow profile.
- the hollow profile can be extended or extruded along a longitudinal axis.
- extruded can refer to the production method of the support column or its hollow profile, but does not have to.
- the term should also be understood here in such a way that it particularly preferably describes only the shape of the support column, which has a hollow profile that is continuously expanded / lengthened along a longitudinal axis in order to thereby generate a three-dimensional column from the two-dimensional cross section of the hollow profile.
- the support column has the same shape or hollow profile at any cross section (perpendicular to the longitudinal axis) along the longitudinal axis of the support column.
- Steel pipes are often also referred to as hollow profiles, this is included here, but “hollow profile” is not to be reduced to this here.
- hollow profile should be understood here, among other things and preferably, to mean that it has a hollow cross section with a shape claimed here and that this is elongated / expanded / "extruded" in a longitudinal axis.
- the material should also not be limited to steel, even if this, more generally also metal, comprises a preferred material of the support column.
- the hollow profile can have at least three interconnected main hollow sections in cross section.
- the hollow profile particularly preferably has exactly three main hollow sections.
- Two main hollow sections can be arranged at a distance from one another and parallel to one another and can be referred to as longitudinal hollow sections.
- Another of the three main hollow sections can connect the two longitudinal hollow sections to one another and can be referred to as a transverse hollow section.
- a Opening can also be provided.
- the transverse hollow section can preferably connect the two longitudinal hollow sections to one another in such a way that the three main hollow sections are arranged in an H-shape to one another.
- H-shaped is intended to indicate the rough shape of the overall arrangement of the three main hollow sections in the plan view of the hollow profile or its cross section.
- the side boundaries of the hollow profile or its cross section preferably form the side wall or side walls of the support column.
- the transverse hollow section can be set up in such a way that at least one lifting spindle and a lifting slide of a lifting platform can be arranged therein such that it can be moved along the longitudinal axis of the support column.
- the cross-sectional area of the transverse hollow section can be dimensioned in such a way that at least the cross-sectional area required by a lifting carriage is provided.
- corner sub-sections of the longitudinal hollow sections which can be positioned above and below the transverse hollow section, can furthermore be set up in such a way that at least one section of a rolling or sliding element of the lifting carriage can be arranged therein.
- a corner sub-section can be particularly preferred Be dimensioned in such a way that a rolling or sliding element can be (almost) completely received therein.
- the corner subsections are greater than 10mm wide and / or deep. These are preferably greater than 30 mm wide and deep. These are particularly preferably between 30 and 70 mm deep and between 30 and 80 mm wide.
- At least one opening can be provided in the hollow profile, wherein the at least one opening can preferably be arranged in the longitudinal direction of the support column or parallel to the longitudinal axis of the support column.
- the at least one opening is particularly preferably arranged in a region of a side wall to the transverse hollow section.
- the opening can be set up in such a way that a bushing can be provided for a connection to a support arm.
- the width of the opening in the cross-sectional plane can in particular be designed such that either the entire lower side of the transverse hollow section is open between the two longitudinal hollow sections or only part of it.
- the minimum width of the opening is preferably such that part of a support of a support arm can establish the connection between the support arm and the lifting carriage through the opening.
- the shaping and dimensioning of the subsections described above allows the lifting platform components, such as the lifting carriage and the rolling or sliding elements as well as the threaded spindle on which the lifting carriage moves along the support nut, to be accommodated in the interior cavity area of the support column.
- the arrangement of the four corner sub-sections, which preferably accommodate the rolling or sliding elements has the particular further technical advantage, for example, that the symmetrical quadruple guidance of the rolling or sliding elements can prevent deformation of the support column, e.g. undesired widening of the opening in the case of a transverse load on the side on which the opening is provided.
- the column cross-section is shaped such that the Slideways or the rolling or sliding elements keep the column cross-section constant (shape) under load.
- the preferred position of the opening in the area of the transverse hollow section is also selected in such a way that the dimensional rigidity of the supporting column is just as optimally guaranteed as the functional integration of lifting platform components into the supporting column.
- the H-shape claimed here can also deviate from a strict H-shape in detail: the "transverse section" of the H can be arranged both centrally to the longitudinal direction of the longitudinal hollow sections and it can be arranged above or below this central position. Preferably, however, the deviation from the central position is at most such that a side edge of the transverse hollow section is arranged below or above an end edge of the longitudinal hollow sections that is present in the longitudinal direction, so that, among other things, the corner subsections can be formed in which the rolling or sliding elements are preferably received.
- the width of the transverse hollow section can also be designed to be variable and optimally adapted to the space requirement, in particular, of the lifting carriage with support nut and threaded spindle.
- the longitudinal hollow sections can be arranged or end in the longitudinal direction on both sides essentially at the same “height” in the direction of the longitudinal direction. This enables a symmetrical and even loading by the rolling or sliding elements, as already described above.
- the support column can be manufactured with relatively small wall thicknesses and / or profile dimensions and can provide excellent dimensional accuracy and rigidity.
- the hollow profile can preferably have a wall thickness between 3 and 12 mm, which particularly preferably runs constantly along the longitudinal direction of the support column.
- the wall thickness can particularly preferably be between 5 and 10 mm be fat.
- a (side) length of the hollow profile, which is arranged along a longitudinal direction of the longitudinal hollow sections, can be between 150 and 500 mm long. Values between 200 and 400 mm are particularly preferred.
- a width of the hollow profile, which is arranged in the cross-sectional plane perpendicular to the longitudinal direction of the longitudinal hollow sections can be between 150 and 600 mm wide. Values between 200 and 500 mm are particularly preferred.
- a height of the support column ie a length in the direction of the longitudinal axis, can be adapted to the required lifting height and type of lifting platform and can be, for example, 2.7 m.
- the support column can also be shorter, for example less than 1 m; 1 m; 1.5 m; 2 m; etc. including the values in between, or be longer, eg greater than 2.7 m; 3 m; 3.5 m; etc. incl. values in between or over 3.5 m.
- the cross-section can have the same values for the length and the width or preferably different values, so that an essentially at least slightly rectangular base area is covered.
- the support column or the hollow profile of the support column can be essentially roll-formed so that no or less welding work is required to weld the base body of the support column together from individual components, as is often necessary or requires greater effort with previously known support columns. This further reduces the manufacturing and assembly costs.
- an indentation can be provided on the outside of the hollow profile, which indentation is arranged between the two longitudinal hollow sections, parallel to the transverse hollow section and on a side remote from the opening.
- the indentation can be set up and / or dimensioned in such a way that it can accommodate cable and / or media strands.
- the indentation can, for example, be between 5 mm and 100 mm deep, it being preferably between 20 and 80 mm deep and particularly preferably between 40 and 60 mm.
- the width of the indentation can be, for example, greater than 10 or 20 mm, preferably greater than 50 mm and particularly preferably designed relative to the width of the hollow profile, for example 20%, 30%, 40% or the like.
- the indentation is particularly preferably designed in such a way that that holders for cables and / or media strands can be mounted therein that connect this to the support column.
- the holder can also be dispensed with and the cable and / or media strands or a guide means for them can be installed in them in a clamping manner.
- the indentation can preferably be dimensioned such that the cable and / or media strands or a guide means of the cable and / or media strands terminate flush with the indentation, ie in particular that they do not or only slightly protrude from the indentation.
- the indentation described above enables the integration of a further technical function in the column lift without additional modifications or with a few modifications to the support column.
- the existing installation space of the basic shape of the hollow profile is therefore optimally used without the support column assuming a larger structural shape.
- the support column can have an end plate for floor mounting at a lower longitudinal end and a projection for a cover with a drive device that can be installed therein at an upper longitudinal end.
- the end plate enables a secure connection between the support column and the floor. If necessary, this can also be screwed to the floor or firmly connected in some other way.
- the arrangement of a cover or a housing at the other longitudinal end of the support column, in which e.g. the drive device of the threaded spindle can be accommodated, is advantageous with regard to the smallest possible and slim design of the support column.
- the drive device can be provided at a different location.
- a lifting platform for motor vehicles which can have at least one support column according to at least one of the above aspects / features.
- the lift can have at least one support arm per support column, at least one threaded spindle per support column, which can be rotatably mounted within the transverse hollow section parallel to the longitudinal axis of the support column, at least one support nut per threaded spindle, which can be in engagement with the threaded spindle and which can be rotated by a rotary movement of the threaded spindle it can be moved and / or at least one lifting device per support column, which can be connected to the support nut and can be set up to hold at least one vertically displaceable support arm.
- the lifting device can have an H-profile in a cross-section along a plane perpendicular to the longitudinal axis of the support column, which is dimensioned such that it can be displaceably arranged in the cavity of the support column which the hollow profile forms.
- the lifting device can preferably have four holding elements, with fewer or more holding elements also being able to be provided. These can each be rod-shaped or elongated profiles and have longitudinal ends for holding the rolling or sliding elements. Two of the four holding elements can be arranged parallel to one another, laterally offset to the threaded spindle and arranged at a level along the longitudinal axis. At a distance along the longitudinal axis from these two holding elements, the two further holding elements can be connected to the lifting device in the same way.
- holding elements can also be installed in the same way.
- a rolling or sliding element can be mounted on each holding element at both longitudinal ends, which can be arranged in each case within an area of the corner sub-sections of the hollow profile of the support column.
- the arrangement of the holding elements and the shape of the lifting device with these holding elements and the sliding elements and / or rolling elements mounted thereon allow optimally uniform loading of the support column in a wide variety of loading scenarios.
- the support column with H-hollow profile has a high rigidity with a small cross-sectional area and low wall thickness and allows the integration of several different lifting platform functions or components due to its shape.
- the preferred four-way guide for rolling or sliding elements within the column profile minimizes deformation caused by sliding blocks. Outside there is also space for electrical and / or media lines, without the column shape would have to be modified accordingly.
- Overall, a slim column design is offered that does not require additional stiffeners either inside or outside the column.
- FIG. 1 shows a schematic representation of part of a lifting platform 10, a single support column 1 of the lifting platform 10 being shown in section. From the Figure 1 it can be seen that a lifting device 14 is mounted within a cavity 1b of the support column 1 formed by side walls 1a, which can also be referred to as lifting carriage 14 in the following. The lifting carriage 14 is also shown in section in order to make further components visible.
- the lifting slide 14 is connected to a threaded spindle 12 by means of a support nut 13a in such a way that when the threaded spindle 12 rotates, the lifting slide 14 along a The longitudinal axis of the threaded spindle 12 is moved up or down.
- rolling or sliding elements 15 are arranged on the lifting carriage 14, which are supported against an inside of the side wall 1 a of the support column 1.
- the embodiment shown here shows, as an example, sliding blocks as rolling or sliding elements 15.
- a locking nut 13b which is described in more detail below, is provided as a locking component.
- the lifting carriage 14 is also connected to a support arm 11 via a support 16.
- the support arm 11 holds a motor vehicle receptacle 11a on which a motor vehicle to be lifted can be placed.
- the support arm 11 is detachably connected to the support 16. Moving the lifting carriage 14 along the threaded spindle 12 leads, due to the connection of the lifting carriage 14 to the support arm 11, to an upward or downward movement of the support arm 11 and a motor vehicle parked thereon.
- the holding elements 18 of the lifting carriage 14 are provided, the sectional view showing two that cover the other two holding elements 18 arranged at the same height along the longitudinal axis L.
- the holding elements 18 are transversely to the longitudinal axis L extending body, which at the two longitudinal ends, as in Figure 1 shown, can accommodate sliding elements as rolling or sliding elements 15.
- the length of the holding elements 18 is such that the sliding elements are arranged within the corner sub-sections 5 of the hollow profile 2, which are still to be described.
- two holding elements 18 arranged at the same height are connected to the lifting carriage 14 at a predetermined and fixed distance along the longitudinal axis to the other two holding elements 18.
- the shape has the advantage that the support column 1 is loaded as evenly as possible.
- a threaded spindle bearing (not explicitly shown), which rotatably supports the threaded spindle 12, can be provided in a lower area of the support column 1 within the support column 1.
- the support column 1 preferably has an end plate 7, which by means of screws or the like, not shown. Can establish a fixed connection between the support column 1 and a floor on which the support column 1 is to be mounted.
- a housing with a drive at least for rotating the threaded spindle 12 can preferably be provided in the usual way, which the Figure 1 does not represent.
- an upper end 12a of the threaded spindle 12 protrudes from the upper region of the cavity 1b of the support column 1, so that a drive or a transmission device for the drive force can be connected to it.
- the Figures 2a and 2b show perspective views of a claimed support column 1 from two different viewing directions.
- the Figure 2a shows in particular a front side of the support column 1, in which an opening 4 is provided in the hollow profile 2.
- the Figure 2a it can be seen how the lifting carriage 14 is arranged to be movable within the support column 1 and how a detachable connection to the support 16 is configured.
- the support column 1 according to Figure 2a stands on an end or base plate 7, which can be firmly connected to the floor.
- a screw connection can preferably be used for this purpose.
- the support column 1 or its hollow profile 2 has an outer indentation 6 and a protrusion of the hollow profile 2 with reference number 9 is provided on a longitudinal end of the support column 1 facing away in the floor.
- the projection 9 is optionally provided and facilitates the assembly of a housing or a cover, if such a cover should be provided at the upper end of the support column 1, which is not shown.
- the indentation 6 is more visible because the Figure 2b essentially represents a so-called rear side of the support column 1.
- a preferred function of the indentation 6 is also apparent from the fact that the Figure 2b at several points along the longitudinal axis L (s. Figure 1 ) the support column 1 within the indentation 6 represents holder or holder elements 6a, the function of which in particular from the Figure 2c becomes apparent.
- cable and / or media strands 19 can be accommodated within the indentation 6 and preferably in a form-fitting manner, which can be firmly connected to the holders 6a and to the support column 1.
- the cable and / or media strands 19 can be arranged individually or within a guide element (not explicitly shown) which combines them.
- a control unit 20 for controlling the lifting platform 10 by a user can preferably be provided in the area of the rear side of the support column 1.
- Figure 3 a plan view of a support column 1 of the lifting platform 10 cut perpendicular to the longitudinal axis L, which also makes the base plate 7 and the support 16 visible. Furthermore, in the plan view according to FIG Figure 3 also the shape of the hollow profile 2 in cross-section clearly, which is particularly with regard to the Figure 4 will be described in more detail. From the Figure 3 It can be seen that the threaded spindle 12 is arranged in a central section of the cavity 1b, which is present inside the hollow profile 2 of the support column 1, and is connected there to part of the lifting carriage 14 in such a way that the threaded spindle 12 rotates to one along the longitudinal axis the threaded spindle 12 leads translation of the lifting carriage 14. Since such a connection between the threaded spindle 12, the lifting carriage 14 and a supporting nut 13a (not shown in more detail) and possibly a safety nut 13b is known, a further explanation with reference to the usual configurations is omitted.
- a special feature of the present subject matter can already be seen from the shape of the hollow profile 2, which essentially has an H-shape in the cross section perpendicular to the longitudinal axis L.
- a transverse area of the H-shaped hollow profile 2 accommodates part of the lifting carriage 14 and the threaded spindle 12, while the longitudinal areas of the H-shaped hollow profile 2 accommodate subcomponents of the lifting carriage 14, in particular the holding elements 18, on which sliding elements 15 are mounted in the case shown are. Due to the fact that four sliding elements 15, which can also be rolling elements, are each arranged in a corner area of the hollow profile 2, a very high dimensional accuracy of the hollow profile 2 can be guaranteed and implemented, even if transverse loads should occur during the operation of the lifting platform 10.
- the opening 4 of the hollow profile 2 is also visible, through which a connection 17 between the lifting device 14 and the support 16 protrudes.
- the opening 4 is arranged along the entire length of the support column 1, such as the Figure 2a shows, so that the entire support column 1 can be used for the travel of the lifting carriage 14. Should the opening 4 be shorter than the total length of the support column 1, which is also possible, the travel of the lifting carriage 14 is shortened accordingly.
- FIG. 3 an installation situation of cable and / or media strands 19 within the indentation 6 is also shown, the Figure 3 shows that the cable and / or media strands 19 are compactly combined within a guide and flush or in the case shown here Figure 3 are arranged just below the outer edge of the indentation 6.
- the strands 19 can thus advantageously be mounted on the support column 1 without requiring additional installation space, so that the support column 1 can continue to be designed with a very slim design.
- the hollow profile 2 is essentially H-shaped, it being possible to distinguish between three main hollow sections 3a to c. Since these are interconnected, like the Figure 4 shows were in the Figure 4 Delimitations of the three main hollow sections 3a to c which are imaginary by means of dashed lines are drawn in, but which are not present in the real hollow profile 2. The dotted lines are therefore purely virtual.
- Two of the main hollow sections are longitudinal hollow sections 3a and 3b, which are spaced apart from one another and arranged longitudinally parallel to one another within the cross-sectional plane of the hollow profile 2 shown.
- a transverse hollow section 3c runs in the transverse direction thereto, which can be viewed as overlapping with a partial area of the longitudinal hollow sections 3a and 3b. This can be seen from the crossed broken lines of the Figure 4 .
- corner sub-sections 5 are provided in particular to accommodate rolling or sliding elements 15 of the lifting carriage 14. Due to the shape of the hollow profile 2 explained above, there is a high geometrical moment of inertia, which leads to a high rigidity of the support column 1.
- the four corner sub-sections 5 also have the advantage that they can accommodate rolling or sliding elements 15 in a preferably symmetrical arrangement, which then, due to their arrangement in the four different corners, can absorb and compensate for unequal loads, so that the dimensional accuracy of the hollow profile 2 even further is supported.
- the walls of the hollow profile 2 in the area of the corner sub-sections 5 also serve as optimal tracks for the sliding or unrolling of the rolling or sliding elements 15. Tilting is thereby largely excluded, so that the lifting carriage 14 is as loss-free as possible within the support column 1 on and from is movably stored.
- the transverse hollow section 3c also offers sufficient space to accommodate the remaining part of the lifting carriage 14 and the threaded spindle 12 as well as the support nut 13a, safety nut 13b and the like.
- the opening 4 of the hollow profile 2 provided on the so-called front side enables the implementation and thus the connection to the support 16, the opening 4 in the Figure 4 is designed such that it extends from a longitudinal hollow section 3a to the opposite longitudinal hollow section 3b.
- the opening 4 can also be designed to be less wide if the support receptacle or connection 17 is correspondingly smaller or less wide.
- Figure 4 It is also shown schematically in Figure 4 the accommodation of the cable and / or media strands 19 in the indentation 6 is shown.
- the Figure 4 thus shows particularly clearly that the existing installation space of the hollow profile 2 is optimally used, so that the support pillar 1 manages without additional protruding attachments and thus a slim pillar design is made possible.
- the shape of the hollow profile also offers an inherent increased rigidity compared to previously known profiles of previously known support columns and thus also enables stiffeners inside or outside of the hollow profile 2 to be dispensed with.
- the hollow profile 2 shown is preferably roll-formed and can be manufactured with fewer assembly steps than previously known support columns, which often require several welding steps to produce the desired support pillar profile. This also reduces the effort involved in the assembly or manufacture of the support column 1.
- Figures 5a and 5b for example, a lower area of the support column 1 described in a perspective, partially transparent view.
- the lifting carriage 14 is arranged within the support column 1 with the H-shaped hollow profile 2 and how the sliding elements 15 shown here are optimally in contact with the inner walls of the corner sub-sections 5 and are guided by them.
- These two figures also show the four holding elements 18, which are each arranged in a corner section of the lifting device and are all arranged parallel and spaced apart from one another, so that tilting can be very reliably excluded, which in turn enables an even and reduced column load.
- the sliding elements 15 are optimally guided in the sections formed by the corner sub-sections 5 in the three-dimensional view as in rails or ruts.
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Abstract
Die Anmeldung betrifft eine Tragsäule 1 einer Hebebühne 10 zum Anheben von Kraftfahrzeugen mit einem entlang einer Längsachse L der Tragsäule 1 erstreckten Hohlprofil 2, das zumindest drei miteinander verbundene Haupthohlabschnitte 3 aufweist.The application relates to a support column 1 of a lifting platform 10 for lifting motor vehicles with a hollow profile 2 which extends along a longitudinal axis L of the support column 1 and has at least three main hollow sections 3 connected to one another.
Description
Die vorliegende Patentanmeldung betrifft insbesondere eine verbesserte Tragsäule für eine Hebebühne zum Anheben von Kraftfahrzeugen. Die Tragsäule hat eine höhere Biegesteifigkeit bei geringerer baulicher Komplexität und verbesserter Bauraumeffizienz.The present patent application relates in particular to an improved support column for a lifting platform for lifting motor vehicles. The support column has a higher flexural rigidity with less structural complexity and improved space efficiency.
Fahrzeuge wie Personenkraftwagen werden mittels Hebebühnen und Tragelementen, die an der Hebebühne verfahrbar befestigt sind, in eine angehobene Position gebracht, um Wartungs- oder Reparaturarbeiten an dem angehobenen Fahrzeug durchführen zu können. Sogenannte Säulen-Hebebühnen weisen zwischen einer und mehrerer vertikal aufgerichtete Tragsäulen auf, an denen Tragelemente, z.B. Tragarme, vertikal verfahrbar montiert sind. Beispielsweise erfolgt das Verfahren der Tragarme mittels einer Hubspindel die von einem Antrieb gedreht wird, wodurch ein an der Hubspindel befestigter Hubschlitten entlang der Hubspindellängsachse verfahren wird. Die Tragsäulen übernehmen bei einer Säulen-Hebebühne mehrere Funktionen und müssen u.a. die Kräfte und Momente aufnehmen, die durch das Anheben eines Kraftfahrzeuges entstehen, sowie Baugruppen sicher lagern, führen, aufnehmen und dergleichen. Damit eine notwendige Biegesteifigkeit der Tragsäulen erreicht wird, werden in bekannter Weise Versteifungen an bzw. in den Tragsäulen verbaut, die jedoch zusätzlichen Montageaufwand und Platzbedarf mit sich bringen. Die Anbringung und Unterbringung von Baugruppen an bzw. in der Tragsäule, wie Kabelsträngen, Hubschlitten, Steuereinheit, Antriebseinrichtung und dgl., erfordern zudem weitere umfangreiche bauliche Anpassungen, die zu einer komplexen Montage und einem vergrößerten Raumbedarf führen.Vehicles such as passenger cars are brought into a raised position by means of lifting platforms and support elements that are movably attached to the lifting platform in order to be able to carry out maintenance or repair work on the lifted vehicle. So-called column lifts have between one and more vertically erected support columns on which support elements, e.g. Support arms are mounted so that they can move vertically. For example, the support arms are moved by means of a lifting spindle which is rotated by a drive, as a result of which a lifting slide attached to the lifting spindle is moved along the longitudinal axis of the lifting spindle. The support pillars take on several functions in a post lift and must, among other things, absorb the forces and moments that arise when a motor vehicle is lifted, as well as safely store, guide, absorb and the like. In order to achieve the necessary flexural rigidity of the support columns, stiffeners are installed on or in the support columns in a known manner, which, however, entail additional installation effort and space requirements. The attachment and accommodation of assemblies on or in the support column, such as cable harnesses, lifting carriage, control unit, drive device and the like, also require further extensive structural adaptations that lead to complex assembly and increased space requirements.
Im Hinblick auf die vorbeschriebene Situation wäre es wünschenswert, eine Tragsäule für eine Hebebühne bereitzustellen, die bei geringer Baugröße eine hohe Steifigkeit und viel Bauraum für Hebebühnenbauteile aufweist und die mit weniger Aufwand montiert bzw. gefertigt werden kann.In view of the situation described above, it would be desirable to provide a support column for a lifting platform which, while being small in size, has a high degree of rigidity and a lot of installation space for lifting platform components and which can be assembled or manufactured with less effort.
Die Aufgabe wird von dem Gegenstand gemäß den beigefügten Patentansprüchen gelöst. Bevorzugte Weiterentwicklungen werden insbesondere in den abhängigen Patentansprüchen beschrieben.The object is achieved by the subject matter according to the attached patent claims. Preferred further developments are described in particular in the dependent claims.
Es wird hier insbesondere eine Tragsäule für eine Hebebühne, die zum Anheben von Kraftfahrzeugen eingerichtet ist, beschrieben. Die Tragsäule kann ein Hohlprofil aufweisen. Besonders bevorzugt kann das Hohlprofil entlang einer Längsachse erstreckt bzw. extrudiert sein. Hierbei ist beachtlich, dass der Begriff "extrudiert" auf die Herstellungsweise der Tragsäule bzw. dessen Hohlprofil hinweisen kann, aber nicht muss. Der Begriff soll hier auch derart verstanden werden, dass er besonders bevorzugt lediglich die Form der Tragsäule beschreibt, die ein Hohlprofil aufweist, dass entlang einer Längsachse kontinuierlich ausgedehnt/verlängert ist, um dadurch aus dem zweidimensionalen Querschnitt des Hohlprofils eine dreidimensional Säule zu erzeugen. Mit anderen Worten könnte dies auch besonders bevorzugt umfassen, dass die Tragsäule an jedem beliebigen Querschnitt (senkrecht zu der Längsachse) entlang der Längsachse der Tragsäule die gleiche Form bzw. Hohlprofil aufweist. Häufig werden Stahlrohre auch als Hohlprofile bezeichnet, dies ist hier umfasst, jedoch soll "Hohlprofil" hier nicht darauf reduziert werden. Allgemeiner soll hier unter Hohlprofil unter anderem und bevorzugt verstanden werden, dass dies einen hohlen Querschnitt mit einer hier beanspruchten Form aufweist und dieser in einer Längsachse verlängert/ausgedehnt/"extrudiert" ist. Das Material soll ferner auch nicht auf Stahl begrenzt sein, auch wenn dies, allgemeiner auch Metall, ein bevorzugtes Material der Tragsäule umfasst.In particular, a support column for a lifting platform which is set up for lifting motor vehicles is described here. The support column can have a hollow profile. Particularly preferably, the hollow profile can be extended or extruded along a longitudinal axis. It is noteworthy that the term "extruded" can refer to the production method of the support column or its hollow profile, but does not have to. The term should also be understood here in such a way that it particularly preferably describes only the shape of the support column, which has a hollow profile that is continuously expanded / lengthened along a longitudinal axis in order to thereby generate a three-dimensional column from the two-dimensional cross section of the hollow profile. In other words, this could also particularly preferably include that the support column has the same shape or hollow profile at any cross section (perpendicular to the longitudinal axis) along the longitudinal axis of the support column. Steel pipes are often also referred to as hollow profiles, this is included here, but "hollow profile" is not to be reduced to this here. More generally, hollow profile should be understood here, among other things and preferably, to mean that it has a hollow cross section with a shape claimed here and that this is elongated / expanded / "extruded" in a longitudinal axis. The material should also not be limited to steel, even if this, more generally also metal, comprises a preferred material of the support column.
Ferner kann das Hohlprofil im Querschnitt zumindest drei miteinander verbundene Haupthohlabschnitte aufweisen. Besonders bevorzugt weist das Hohlprofil genau drei Haupthohlabschnitte auf. Zwei Haupthohlabschnitte können beabstandet und parallel zueinander angeordnet sein und als Längshohlabschnitte bezeichnet werden. Ein weiterer der drei Haupthohlabschnitte kann die beiden Längshohlabschnitte miteinander verbinden und als Querhohlabschnitt bezeichnet werden. Eine Öffnung kann ferner vorgesehen sein.Furthermore, the hollow profile can have at least three interconnected main hollow sections in cross section. The hollow profile particularly preferably has exactly three main hollow sections. Two main hollow sections can be arranged at a distance from one another and parallel to one another and can be referred to as longitudinal hollow sections. Another of the three main hollow sections can connect the two longitudinal hollow sections to one another and can be referred to as a transverse hollow section. A Opening can also be provided.
Der Querhohlabschnitt kann bevorzugt die beiden Längshohlabschnitte derart miteinander verbinden, dass die drei Haupthohlabschnitte H-förmig zueinander angeordnet sind. H-förmig soll auf die grobe Formgebung der Gesamtanordnung der drei Haupthohlabschnitte in der Draufsicht auf das Hohlprofil bzw. dessen Querschnitt hinweisen.The transverse hollow section can preferably connect the two longitudinal hollow sections to one another in such a way that the three main hollow sections are arranged in an H-shape to one another. H-shaped is intended to indicate the rough shape of the overall arrangement of the three main hollow sections in the plan view of the hollow profile or its cross section.
Die Vorteile der vorbeschriebenen Tragsäule sind darin zu sehen, dass ein Säulenprofil eingesetzt werden kann, dass geringeren Fertigungsaufwand im Vergleich zu einer aufwendig durch eine Vielzahl von Schweißschritten hergestellte Tragsäule erfordert, wobei die Profilform auszeichnet, dass bei geringer Wandstärke und relativ kleiner Querschnittsfläche eine ausgezeichnete Steifigkeit ohne zusätzliche zu montierende Versteifungen ermöglicht wird und auf "natürliche" Weise, d.h. formbedingt, ausreichend Bauraum vorhanden ist, der die Integration von Hebebühnenbauteilen und/oder -funktionen ermöglicht.The advantages of the support column described above can be seen in the fact that a column profile can be used that requires less manufacturing effort compared to a support column manufactured using a large number of welding steps, the profile shape being characterized by excellent rigidity with a low wall thickness and a relatively small cross-sectional area is made possible without additional stiffeners to be mounted and in a "natural" way, ie Due to the shape, there is sufficient installation space that enables the integration of lifting platform components and / or functions.
Die Seitenbegrenzungen des Hohlprofils bzw. dessen Querschnittes bilden bevorzugt die Seitenwand bzw. Seitenwände der Tragsäule.The side boundaries of the hollow profile or its cross section preferably form the side wall or side walls of the support column.
Ferner kann der Querhohlabschnitt derart eingerichtet sein, dass darin zumindest eine Hubspindel und ein Hubschlitten einer Hebebühne verfahrbar entlang der Längsachse der Tragsäule anordenbar sein können. Mit anderen Worten kann die Querschnittsfläche des Querhohlabschnittes derart dimensioniert sein, dass zumindest die von einem Hubschlitten benötigte Querschnittsfläche bereitgestellt wird.Furthermore, the transverse hollow section can be set up in such a way that at least one lifting spindle and a lifting slide of a lifting platform can be arranged therein such that it can be moved along the longitudinal axis of the support column. In other words, the cross-sectional area of the transverse hollow section can be dimensioned in such a way that at least the cross-sectional area required by a lifting carriage is provided.
Vier Eckunterabschnitten der Längshohlabschnitte, die oberhalb und unterhalb des Querhohlabschnittes positioniert sein können, können ferner derart eingerichtet sein, dass darin jeweils zumindest ein Abschnitt eines Roll- bzw. Gleitelementes des Hubschlittens anordenbar sein kann. Besonders bevorzugt kann ein Eckunterabschnitt derart dimensioniert sein, dass ein Roll- bzw. Gleitelement (nahezu) vollständig darin aufgenommen werden kann. Beispielsweise sind die Eckunterabschnitte größer 10mm breit und/oder tief. Bevorzugt sind diese größer 30 mm breit und tief. Besonders bevorzugt sind diese zwischen 30 und 70 mm tief und zwischen 30 und 80 mm breit.Four corner sub-sections of the longitudinal hollow sections, which can be positioned above and below the transverse hollow section, can furthermore be set up in such a way that at least one section of a rolling or sliding element of the lifting carriage can be arranged therein. A corner sub-section can be particularly preferred Be dimensioned in such a way that a rolling or sliding element can be (almost) completely received therein. For example, the corner subsections are greater than 10mm wide and / or deep. These are preferably greater than 30 mm wide and deep. These are particularly preferably between 30 and 70 mm deep and between 30 and 80 mm wide.
Ferner kann zumindest eine Öffnung in dem Hohlprofil vorgesehen sein, wobei die zumindest eine Öffnung bevorzugt in Längsrichtung der Tragsäule bzw. parallel zu der Längsachse der Tragsäule angeordnet sein kann. Besonders bevorzugt ist die zumindest eine Öffnung in einem Bereich einer Seitenwand zu dem Querhohlabschnitt angeordnet.Furthermore, at least one opening can be provided in the hollow profile, wherein the at least one opening can preferably be arranged in the longitudinal direction of the support column or parallel to the longitudinal axis of the support column. The at least one opening is particularly preferably arranged in a region of a side wall to the transverse hollow section.
Ferner kann die Öffnung derart eingerichtet sein, dass eine Durchführungfür eine Verbindung mit einem Tragarm bereitgestellt werden kann. Die Breite der Öffnung in der Querschnittsebene kann insbesondere derart ausgelegt sein, dass entweder die gesamte untere Seite des Querhohlabschnittes zwischen den beiden Längshohlabschnitten geöffnet ist oder nur ein Teil davon. Die Mindestbreite der Öffnung ist bevorzugt derart, dass ein Teil eines Auflagers eines Tragarmes die Verbindung zwischen dem Tragarm und dem Hubschlitten durch die Öffnung hindurch herstellen kann.Furthermore, the opening can be set up in such a way that a bushing can be provided for a connection to a support arm. The width of the opening in the cross-sectional plane can in particular be designed such that either the entire lower side of the transverse hollow section is open between the two longitudinal hollow sections or only part of it. The minimum width of the opening is preferably such that part of a support of a support arm can establish the connection between the support arm and the lifting carriage through the opening.
Die oben beschriebene Formgebung und Dimensionierung der Unterabschnitte erlaubt eine formgenaue Aufnahme von Hebebühnenbauteilen, wie dem Hubschlitten und den Roll- bzw. Gleitelementen sowie der Gewindespindel, an der der Hubschlitten der Tragmutter entlang fährt, im Inneren Hohlraumbereich der Tragsäule. Die Anordnung der vier Eckunterabschnitte, die bevorzugt die Roll- bzw. Gleitelemente aufnehmen, hat beispielsweise den besonderen weiteren technischen Vorteil, dass durch die symmetrische Vierfachführung der Roll- bzw. Gleitelemente eine Verformung der Tragsäule verhindert werden kann, z.B. eine unerwünschte Aufweitung der der Öffnung bei einer Querbelastung an der Seite, an der die Öffnung vorgesehen ist. Mit anderen Worten ist der Säulenquerschnitt derart geformt, dass die Gleitführungen bzw. die Roll- bzw. Gleitelemente den Säulenquerschnitt bei Belastung (form-)konstant halten.The shaping and dimensioning of the subsections described above allows the lifting platform components, such as the lifting carriage and the rolling or sliding elements as well as the threaded spindle on which the lifting carriage moves along the support nut, to be accommodated in the interior cavity area of the support column. The arrangement of the four corner sub-sections, which preferably accommodate the rolling or sliding elements, has the particular further technical advantage, for example, that the symmetrical quadruple guidance of the rolling or sliding elements can prevent deformation of the support column, e.g. undesired widening of the opening in the case of a transverse load on the side on which the opening is provided. In other words, the column cross-section is shaped such that the Slideways or the rolling or sliding elements keep the column cross-section constant (shape) under load.
Die bevorzugte Position der Öffnung im Bereich des Querhohlabschnittes ist zudem derart gewählt, dass die Formsteifigkeit der Tragsäule genauso optimal gewährleistet ist wie die funktionsbedingte Integration von Hebebühnenbauteilen in die Tragsäule.The preferred position of the opening in the area of the transverse hollow section is also selected in such a way that the dimensional rigidity of the supporting column is just as optimally guaranteed as the functional integration of lifting platform components into the supporting column.
Ferner kann die hier beanspruchte H-Form auch von einer strikten H-Form im Detail abweichen: Der "Querabschnitt" des H's kann sowohl mittig zu der Längsrichtungder Längshohlabschnitte angeordnet sein und er kann oberhalb oder unterhalb dieser mittigen Position angeordnet sein. Bevorzugt ist die Abweichung von der Mittelposition jedoch maximal derart, dass eine Seitenkante des Querhohlabschnittes unterhalb bzw. oberhalb einer in Längsrichtung vorhandene Abschlusskante der Längshohlabschnitte angeordnet ist, so dass u.a. die Eckunterabschnitten ausgebildet werden können, in denen die Roll- bzw. Gleitelemente bevorzugt aufgenommen werden. Die Breite des Querhohlabschnittes kann ebenfalls variabel gestaltet sein und optimal an den Platzbedarf, insbesondere, von dem Hubschlitten mit Tragmutter und Gewindespindel angepasst werden.Furthermore, the H-shape claimed here can also deviate from a strict H-shape in detail: the "transverse section" of the H can be arranged both centrally to the longitudinal direction of the longitudinal hollow sections and it can be arranged above or below this central position. Preferably, however, the deviation from the central position is at most such that a side edge of the transverse hollow section is arranged below or above an end edge of the longitudinal hollow sections that is present in the longitudinal direction, so that, among other things, the corner subsections can be formed in which the rolling or sliding elements are preferably received. The width of the transverse hollow section can also be designed to be variable and optimally adapted to the space requirement, in particular, of the lifting carriage with support nut and threaded spindle.
Ferner können die Längshohlabschnitte in der Längsrichtung beidseitig im Wesentlichen auf gleicher "Höhe" in Richtung der Längsrichtung angeordnet sein bzw. enden. Dies ermöglicht eine symmetrische und gleichmäßige Belastung durch die Roll- bzw. Gleitelemente, wie es bereits oben beschrieben wurde.Furthermore, the longitudinal hollow sections can be arranged or end in the longitudinal direction on both sides essentially at the same “height” in the direction of the longitudinal direction. This enables a symmetrical and even loading by the rolling or sliding elements, as already described above.
Ferner kann die Tragsäule mit relativ geringen Wandstärken und/oder Profilabmessungen gefertigt sein und eine hervorragende Formtreue bzw. Steifigkeit mit sich bringen. Bevorzugt kann das Hohlprofil eine Wandstärke zwischen 3 und 12 mm aufweisen, die besonders bevorzugt konstant entlang der Längsrichtung der Tragsäule verläuft. Besonders bevorzugt kann die Wandstärke zwischen 5 und 10 mm dick sein. Ferner kann eine (Seiten-)Länge des Hohlprofils, die entlang einer Längsrichtung der Längshohlabschnitte angeordnet ist, zwischen 150 und 500 mm lang sein. Besonders bevorzugt sind Werte zwischen 200 und 400 mm. Ferner kann eine Breite des Hohlprofils, die in der Querschnittsebene senkrecht zu der Längsrichtung der Längshohlabschnitte angeordnet ist, zwischen 150 bis 600 mm breit sein. Besonders bevorzugt sind Werte zwischen 200 und 500 mm. Eine Höhe der Tragsäule, d.h. eine Länge in der Richtung der Längsachse, kann der benötigten Hubhöhe und Bauart der Hebebühne angepasst sein und z.B. 2,7 m betragen. Die Tragsäule kann jedoch auch kürzer sein, z.B. kleiner als 1 m; 1 m; 1,5 m; 2 m; usw. inkl. der Werte dazwischen, oder länger sein, z.B. größer 2,7 m; 3 m; 3,5 m; usw. inkl. Werte dazwischen oder über 3,5 m. Der Querschnitt kann dieselben Werte für die Länge und die Breite aufweisen oder bevorzugt unterschiedliche, so dass eine im Wesentlichen zumindest geringfügig rechteckige Grundfläche abgedeckt wird.Furthermore, the support column can be manufactured with relatively small wall thicknesses and / or profile dimensions and can provide excellent dimensional accuracy and rigidity. The hollow profile can preferably have a wall thickness between 3 and 12 mm, which particularly preferably runs constantly along the longitudinal direction of the support column. The wall thickness can particularly preferably be between 5 and 10 mm be fat. Furthermore, a (side) length of the hollow profile, which is arranged along a longitudinal direction of the longitudinal hollow sections, can be between 150 and 500 mm long. Values between 200 and 400 mm are particularly preferred. Furthermore, a width of the hollow profile, which is arranged in the cross-sectional plane perpendicular to the longitudinal direction of the longitudinal hollow sections, can be between 150 and 600 mm wide. Values between 200 and 500 mm are particularly preferred. A height of the support column, ie a length in the direction of the longitudinal axis, can be adapted to the required lifting height and type of lifting platform and can be, for example, 2.7 m. However, the support column can also be shorter, for example less than 1 m; 1 m; 1.5 m; 2 m; etc. including the values in between, or be longer, eg greater than 2.7 m; 3 m; 3.5 m; etc. incl. values in between or over 3.5 m. The cross-section can have the same values for the length and the width or preferably different values, so that an essentially at least slightly rectangular base area is covered.
Ferner kann die Tragsäule bzw. das Hohlprofil der Tragsäule im Wesentlichen rollgeformt sein, so dass keine bzw. weniger Schweißarbeiten anfallen, um den Grundkörper der Tragsäule aus Einzelbauteilen zusammenzuschweißen, wie dies bei vorbekannten Tragsäulen häufig notwendig ist bzw. in größerem Aufwand notwendig ist. Dies reduziert den Fertigungs- bzw. Montageaufwand noch weiter.Furthermore, the support column or the hollow profile of the support column can be essentially roll-formed so that no or less welding work is required to weld the base body of the support column together from individual components, as is often necessary or requires greater effort with previously known support columns. This further reduces the manufacturing and assembly costs.
Ferner kann eine Einbuchtung auf der Außenseite des Hohlprofiles vorgesehen sein, die zwischen den zwei Längshohlabschnitten, parallel zu dem Querhohlabschnitt und auf einer der Öffnung abgelegenen Seite angeordnet ist. Die Einbuchtung kann derart eingerichtet sein und/oder dimensioniert sein, Kabel- und/oder Medienstränge aufnehmen zu können. Die Einbuchtung kann beispielsweise zwischen 5 mm und 100 mm tief sein, wobei sie bevorzugt zwischen 20 und 80 mm tief ist und besonders bevorzugt zwischen 40 und 60 mm. Die Breite der Einbuchtung kann beispielsweise größer 10 oder 20 mm sein, bevorzugt größer 50 mm und besonders bevorzugt relativ zu der Breite des Hohlprofils ausgeführt sein, z.B. 20 %, 30%, 40 % oder dgl.. Besonders bevorzugt ist die Einbuchtung derart eingerichtet, dass darin Halter für Kabel- und/oder Medienstränge montiert werden können, die diese mit der Tragsäule verbinden. Auf die Halter kann auch verzichtet werden und die Kabel- und/oder Medienstränge bzw. ein Führungsmittel dafür können in diese klemmend eingebaut werden. Die Einbuchtung kann bevorzugt derart dimensioniert sein, dass die Kabel- und/oder Medienstränge bzw. ein Führungsmittel der Kabel- und/oder Medienstränge formbündig mit der Einbuchtung abschließen, d.h. insbesondere, dass diese nicht oder nur geringfügig aus der Einbuchtung heraus überstehen. Die vorbeschriebene Einbuchtung ermöglicht die Integration einer weiteren technischen Funktion in die Säulenhebebühne, ohne zusätzliche Modifikationen bzw. mit wenigen Modifikationen der Tragsäule. Der vorhandene Bauraum der Grundform des Hohlprofils wird demnach optimal ausgenutzt, ohne dass die Tragsäule eine größere Bauform annimmt.Furthermore, an indentation can be provided on the outside of the hollow profile, which indentation is arranged between the two longitudinal hollow sections, parallel to the transverse hollow section and on a side remote from the opening. The indentation can be set up and / or dimensioned in such a way that it can accommodate cable and / or media strands. The indentation can, for example, be between 5 mm and 100 mm deep, it being preferably between 20 and 80 mm deep and particularly preferably between 40 and 60 mm. The width of the indentation can be, for example, greater than 10 or 20 mm, preferably greater than 50 mm and particularly preferably designed relative to the width of the hollow profile, for example 20%, 30%, 40% or the like. The indentation is particularly preferably designed in such a way that that holders for cables and / or media strands can be mounted therein that connect this to the support column. The holder can also be dispensed with and the cable and / or media strands or a guide means for them can be installed in them in a clamping manner. The indentation can preferably be dimensioned such that the cable and / or media strands or a guide means of the cable and / or media strands terminate flush with the indentation, ie in particular that they do not or only slightly protrude from the indentation. The indentation described above enables the integration of a further technical function in the column lift without additional modifications or with a few modifications to the support column. The existing installation space of the basic shape of the hollow profile is therefore optimally used without the support column assuming a larger structural shape.
Ferner kann die Tragsäule an einem unteren Längsende eine Abschlussplatte zur Bodenbefestigung aufweisen und an einem oberen Längsende eine Auskragung für eine Abdeckung mit einer darin verbaubaren Antriebseinrichtung. Die Abschlussplatte ermöglicht eine sichere Verbindung der Tragsäule mit dem Boden. Diese kann bei Bedarf auch mit dem Boden verschraubt oder andersartig fest verbunden werden. Die Anordnung einer Abdeckung bzw. eines Gehäuses an dem anderen Längsende der Tragsäule, in dem z.B. die Antriebseinrichtung der Gewindespindel unterbracht sein kann, ist im Hinblick auf eine möglichst kleine und schlanke Bauform der Tragsäule vorteilhaft. Die Antriebseinrichtung kann jedoch an einer anderen Stelle vorgesehen sein.Furthermore, the support column can have an end plate for floor mounting at a lower longitudinal end and a projection for a cover with a drive device that can be installed therein at an upper longitudinal end. The end plate enables a secure connection between the support column and the floor. If necessary, this can also be screwed to the floor or firmly connected in some other way. The arrangement of a cover or a housing at the other longitudinal end of the support column, in which e.g. the drive device of the threaded spindle can be accommodated, is advantageous with regard to the smallest possible and slim design of the support column. However, the drive device can be provided at a different location.
Ferner wird eine Hebebühne für Kraftfahrzeuge beschrieben, die zumindest eine Tragsäule gemäß zumindest einem der voranstehenden Aspekte/Merkmale aufweisen kann. Zudem kann die Hebebühne zumindest jeweils einen Tragarm je Tragsäule, zumindest eine Gewindespindel je Tragsäule, die innerhalb des Querhohlabschnittes parallel zur Tragsäulenlängsachse drehbar gelagert sein kann, zumindest eine Tragmutter je Gewindespindel, die im Eingriff mit der Gewindespindel sein kann und die durch eine Drehbewegung der Gewindespindel daran verfahrbar sein kann, und/oder zumindest eine Hubeinrichtung je Tragsäule, die mit der Tragmutter verbunden sein kann und dazu eingerichtet sein kann, mindestens einen vertikal verfahrbar Tragarm zu halten, aufweisen.Furthermore, a lifting platform for motor vehicles is described which can have at least one support column according to at least one of the above aspects / features. In addition, the lift can have at least one support arm per support column, at least one threaded spindle per support column, which can be rotatably mounted within the transverse hollow section parallel to the longitudinal axis of the support column, at least one support nut per threaded spindle, which can be in engagement with the threaded spindle and which can be rotated by a rotary movement of the threaded spindle it can be moved and / or at least one lifting device per support column, which can be connected to the support nut and can be set up to hold at least one vertically displaceable support arm.
Ferner kann die Hubeinrichtung in einem Querschnitt entlang einer Ebene senkrecht zu der Längsachse der Tragsäule ein H-Profil aufweisen, das derart dimensioniert ist, dass es in dem Hohlraum der Tragsäule, den das Hohlprofil bildet, verfahrbar angeordnet werden kann. Zudem kann die Hubeinrichtung bevorzugt vier Halteelemente aufweisen, wobei weniger oder mehr Halteelemente auch vorgesehen sein können. Diese können jeweils stangenförmig bzw. längsgestreckte Profile sein und Längsenden zum Halten der Roll- bzw. Gleitelemente haben. Zwei der vier Halteelemente können parallel zueinander seitlich versetzt zu der Gewindespindel angeordnet und auf einer Höhe entlang der Längsachse angeordnet sein. Mit einem Abstand entlang der Längsachse zu diesen beiden Halteelementen können die beiden weiteren Haltelemente in gleicher Art und Weise mit der Hubeinrichtung verbunden sein. Insbesondere wenn mehr als vier Halteelemente vorgesehen sein sollten, können diese in gleicher Weise zusätzlich verbaut werden. An jedem Halteelement kann an beiden Längsenden ein Roll- bzw. Gleitelement montierbar sein, das jeweils innerhalb eines Bereichs der Eckunterabschnitte des Hohlprofils der Tragsäule anordenbar sein kann. Die Anordnung der Halteelemente und die Form der Hubeinrichtung mit diesen Halteelementen und den daran montieren Gleitelementen und/oder Rollelementen erlaubt eine optimal gleichmäßige Belastung der Tragsäule in unterschiedlichsten Belastungsszenarien.Furthermore, the lifting device can have an H-profile in a cross-section along a plane perpendicular to the longitudinal axis of the support column, which is dimensioned such that it can be displaceably arranged in the cavity of the support column which the hollow profile forms. In addition, the lifting device can preferably have four holding elements, with fewer or more holding elements also being able to be provided. These can each be rod-shaped or elongated profiles and have longitudinal ends for holding the rolling or sliding elements. Two of the four holding elements can be arranged parallel to one another, laterally offset to the threaded spindle and arranged at a level along the longitudinal axis. At a distance along the longitudinal axis from these two holding elements, the two further holding elements can be connected to the lifting device in the same way. In particular, if more than four holding elements should be provided, these can also be installed in the same way. A rolling or sliding element can be mounted on each holding element at both longitudinal ends, which can be arranged in each case within an area of the corner sub-sections of the hollow profile of the support column. The arrangement of the holding elements and the shape of the lifting device with these holding elements and the sliding elements and / or rolling elements mounted thereon allow optimally uniform loading of the support column in a wide variety of loading scenarios.
Zusammengefasst können u.a. die nachfolgend beschriebenen technischen Vorteile erzielt werden: Die Tragsäule mit H-Hohlprofil weist eine hohe Steifigkeit bei geringer Querschnittsfläche sowie geringer Wandstärke auf und erlaubt formbedingt die Integration von mehreren verschiedenen Hebebühnen-Funktionen bzw. Bauteilen. Die bevorzugte Vierfach-Führung für Roll- bzw. Gleitelemente innerhalb des Säulenprofiles minimiert die Verformung durch Gleitsteine. Außen ist ferner Platz für Elektro- und/oder Medienleitungen vorhanden, ohne dass die Säulenform entsprechend abgeändert werden müsste. Insgesamt wird ein schlankes Säulendesign angeboten, das ohne zusätzlich Versteifungen weder innerhalb der Säule noch außerhalb der Säule auskommt.In summary, the technical advantages described below can be achieved, among other things: The support column with H-hollow profile has a high rigidity with a small cross-sectional area and low wall thickness and allows the integration of several different lifting platform functions or components due to its shape. The preferred four-way guide for rolling or sliding elements within the column profile minimizes deformation caused by sliding blocks. Outside there is also space for electrical and / or media lines, without the column shape would have to be modified accordingly. Overall, a slim column design is offered that does not require additional stiffeners either inside or outside the column.
Vorliegende Gegenstände und Verfahren werden im Folgenden exemplarisch mit Bezug auf die beigefügten, schematischen Figuren beschrieben.
Figur 1- zeigt eine Hebebühne schematisch und im Schnitt;
- Figuren 2a-2c
- zeigen perspektivisch eine Tragsäule;
- Figur 3
- zeigt eine Draufsicht auf einen Querschnitt einer Tragsäule;
Figur 4- zeigt eine noch stärker schematisch dargestellte Draufsicht auf einen Querschnitt einer Tragsäule; und
- Figuren 5a, 5b
- zeigen einen Ausschnitt einer Tragsäule mit integrierter Hubeinrichtung.
- Figure 1
- shows a lifting platform schematically and in section;
- Figures 2a-2c
- show in perspective a support column;
- Figure 3
- shows a plan view of a cross section of a support column;
- Figure 4
- shows an even more schematically illustrated plan view of a cross section of a support column; and
- Figures 5a, 5b
- show a section of a support column with an integrated lifting device.
Im Folgenden werden verschiedene Beispiele detailliert unter Bezugnahme auf die Figuren beschrieben. Gleiche bzw. ähnliche Elemente in den Figuren werden hierbei mit gleichen Bezugszeichen bezeichnet. Damit soll jedoch keine Einschränkung auf die beschriebenen Beispiele einhergehen; vielmehr kann der beschriebene Gegenstand auch Modifikationen von Merkmalen der beschriebenen Beispiele und Kombination von Merkmalen verschiedener Beispiele im Rahmen des Schutzumfangs der unabhängigen Ansprüche umfassen.Various examples are described in detail below with reference to the figures. Identical or similar elements in the figures are denoted by the same reference symbols. However, this is not intended to be associated with a restriction to the examples described; Rather, the described subject matter can also include modifications of features of the described examples and combinations of features of different examples within the scope of protection of the independent claims.
Der Hubschlitten 14 ist ferner über ein Auflager 16 mit einem Tragarm 11 verbunden. Der Tragarm 11 hält eine Kraftfahrzeugaufnahme 11a, an der ein anzuhebendes Kraftfahrzeug aufgesetzt werden kann. Der Tragarm 11 ist lösbar mit dem Auflager 16 verbunden. Ein Verfahren der Hubschlittens 14 entlang der Gewindespindel 12 führt aufgrund der Verbindung des Hubschlittens 14 mit dem Tragarm 11 zu einer Auf- oder Abbewegung des Tragarms 11 und eines darauf abgestellten Kraftfahrzeugs.The lifting
Vier Halteelemente 18 des Hubschlittens 14 sind vorgesehen, wobei die Schnittansicht zwei sichtbar macht, die die weiteren beiden auf gleicher Höhe entlang der Längsachse L angeordneten Halteelemente 18 verdecken. Die Halteelemente 18 sind quer zur Längsachse L erstreckte Körper, die an den beiden Längsenden, wie in der
In einem unteren Bereich der Tragsäule 1 kann innerhalb der Tragsäule 1 ein Gewindespindellager (nicht explizit gezeigt) vorgesehen sein, das die Gewindespindel 12 rotierbar lagert. Ferner weist die Tragsäule 1 bevorzugt eine Abschlussplatte 7 auf, die mittels nicht gezeigter Schrauben oder dgl. eine feste Verbindung zwischen der Tragsäule 1 und einem Boden, auf dem die Tragsäule 1 zu montieren ist, herstellen können. In einem oberen Bereich der Tragsäule 1 kann bevorzugt in üblicher Weise ein Gehäuse mit einem Antrieb zumindest zur Rotation der Gewindespindel 12 vorgesehen sein, den die
Ausgehend von den obigen Erläuterungen zu der schematischen Darstellung der Hebebühne 10 wird nachfolgend und insbesondere im Hinblick auf die
Die
Die Tragsäule 1 gemäß
In der Ansicht, die die
Noch deutlicher werden die technischen Vorteile des hier beschriebenen Gegenstandes anhand der
So zeigt die
Eine Besonderheit des vorliegenden Gegenstandes wird bereits aus der Formgebung des Hohlprofils 2 ersichtlich, der im Wesentlichen eine H-Form im senkrecht zur Längsachse L angelegten Querschnitt aufweist. Insbesondere ein Querbereich des H-förmigen Hohlprofils 2 nimmt einen Teil des Hubschlittens 14 und die Gewindespindel 12 auf, während die Längsbereiche des H-förmigen Hohlprofils 2 Teilkomponenten des Hubschlittens 14, insbesondere die Halteelemente 18, aufnehmen, an denen im gezeigten Fall Gleitelemente 15 montiert sind. Aufgrund der Tatsache, dass vier Gleitelemente 15, die jedoch auch Rollelemente sein können, in jeweils einem Eckbereich des Hohlprofils 2 angeordnet sind, kann eine sehr hohe Formtreue des Hohlprofils 2 gewährleistet und realisiert werden, selbst wenn Querbelastungen beim Betrieb der Hebebühne 10 auftreten sollten.A special feature of the present subject matter can already be seen from the shape of the
Im Bereich des Auflagers 16 ist ferner die Öffnung 4 des Hohlprofils 2 sichtbar, durch die eine Verbindung 17 zwischen der Hubeinrichtung 14 und dem Auflager 16 hindurchragt. Die Öffnung 4 ist entlang der gesamten Länge der Tragsäule 1 angeordnet, wie beispielsweise die
Zudem ist in der
Die sehr schematisch aufgebaute Draufsicht auf den Querschnitt des Hohlprofils 2 gemäß der
Der Querhohlabschnitt 3c bietet zudem ausreichend Platz, um darin den übrigen Teil des Hubschlittens 14 und die Gewindespindel 12 sowie Tragmutter 13a, Sicherheitsmutter 13b und dergleichen unterzubringen. Die an der so genannten Vorderseite vorgesehene Öffnung 4 des Hohlprofils 2 ermöglicht die Durchführung und damit die Verbindung zu dem Auflager 16, wobei die Öffnung 4 in der
Weiterhin ist schematisch in der
Schließlich zeigen die beiden
Zusammengefasst wird hier eine verbesserte Tragsäule und Hebebühne mit den oben dargelegten technischen Vorteilen beschrieben.
- 1 Tragsäule
- 1a Seitenwand der Tragsäule
- 1b Hohlraum der Tragsäule
- 2 Hohlprofil
- 3 Haupthohlabschnitte
- 3a, 3b Längshohlabschnitte
- 3c Querhohlabschnitt
- 4 Öffnung
- 5 Eckunterabschnitten
- 6 Einbuchtung
- 6a Halter
- 7 Abschlussplatte
- 8 Abdeckung
- 9 Auskragung
- 10 Hebebühne
- 11 Tragarm
- 11a Fahrzeugaufnahme
- 12 Gewindespindel
- 12a oberes Ende der Gewindespindel
- 13a Tragmutter
- 13b Sicherungsmutter
- 14 Hubeinrichtung/Hubschlitten
- 15 Roll- bzw. Gleitelemente
- 16 Auflager
- 17 Verbindung zwischen der Hubeinrichtung und dem Auflager
- 18
Halteelement für 14 - 19 Kabel- und/oder Medienstränge
- 20 Steuereinheit
- L Längsachse
- 1 support column
- 1a side wall of the support column
- 1b cavity of the support column
- 2 hollow profile
- 3 main hollow sections
- 3a, 3b longitudinal hollow sections
- 3c transverse hollow section
- 4 opening
- 5 corner subsections
- 6 indentation
- 6a holder
- 7 end plate
- 8 cover
- 9 cantilever
- 10 lift
- 11 support arm
- 11a vehicle recording
- 12 threaded spindle
- 12a upper end of the threaded spindle
- 13a support nut
- 13b lock nut
- 14 Lifting device / lifting carriage
- 15 rolling or sliding elements
- 16 supports
- 17 Connection between the lifting device and the support
- 18 retaining element for 14
- 19 cables and / or media strands
- 20 control unit
- L longitudinal axis
Claims (11)
zumindest einer Tragsäule (1) gemäß zumindest einem der voranstehenden Patentansprüche,
zumindest jeweils einem Tragarm (11) je Tragsäule (1),
zumindest einer Gewindespindel (12) je Tragsäule (1), die innerhalb des Querhohlabschnittes (3c) parallel zur Tragsäulenlängsachse (L) drehbar gelagert ist,
zumindest einer Tragmutter (13a) je Gewindespindel (12), die im Eingriff mit der Gewindespindel (12) ist und die durch eine Drehbewegung der Gewindespindel (12) daran verfahrbar ist, und
zumindest einer Hubeinrichtung (14) je Tragsäule (1), die mit der Tragmutter (13a) verbunden ist und dazu eingerichtet ist, mindestens einen vertikal verfahrbar Tragarm (11) zu halten.Lifting platform (10) for motor vehicles with
at least one support column (1) according to at least one of the preceding claims,
at least one support arm (11) per support column (1),
at least one threaded spindle (12) per support column (1), which is rotatably mounted within the transverse hollow section (3c) parallel to the longitudinal axis (L) of the support column,
at least one support nut (13a) per threaded spindle (12) which is in engagement with the threaded spindle (12) and which can be moved thereon by a rotary movement of the threaded spindle (12), and
at least one lifting device (14) per support column (1) which is connected to the support nut (13a) and is set up to hold at least one vertically movable support arm (11).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019209178.4A DE102019209178A1 (en) | 2019-06-25 | 2019-06-25 | Lift and support column of a lift |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3757057A1 true EP3757057A1 (en) | 2020-12-30 |
Family
ID=70110161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20167227.6A Pending EP3757057A1 (en) | 2019-06-25 | 2020-03-31 | Lifting platform and support column of a lifting platform |
Country Status (2)
Country | Link |
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EP (1) | EP3757057A1 (en) |
DE (1) | DE102019209178A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024078452A1 (en) * | 2022-10-11 | 2024-04-18 | 广州好想法信息科技有限公司 | Portable car lifting mechanism and device, and system |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3722627A (en) * | 1970-10-28 | 1973-03-27 | Hofmann Maschf Geb | Two column lifting platform |
US5318154A (en) * | 1992-06-16 | 1994-06-07 | Hellman Jr Robert R | Column for load lifting devices |
CA2287113A1 (en) * | 1998-10-23 | 2000-04-23 | Wheeltronic Ltd. | Improved open-end, four-post vehicle lift |
DE20307315U1 (en) * | 2003-05-09 | 2003-10-02 | Herrmann, Johannes, 93413 Cham | Pillar type lifting platform has reinforcing plates located in sections along pillar profile and located outside clearance profile occupied by carriage so that no contact is provided between carriage and reinforcing plates |
EP2163505A2 (en) * | 2008-09-15 | 2010-03-17 | Otto Nussbaum GmbH & Co. KG | Lifting platform for vehicles |
JP2012171732A (en) * | 2011-02-21 | 2012-09-10 | Tsubaki Emerson Co | Lifting device |
US20150232311A1 (en) * | 2014-02-14 | 2015-08-20 | Vehicle Service Group, Llc | Articulating roller assembly for four-post vehicle lift |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004019145U1 (en) * | 2004-12-10 | 2005-02-10 | Maha Maschinenbau Haldenwang Gmbh & Co. Kg | Stand-lifting platform for vehicles has profile rails arranged on both sides of a wide slit and formed as part of a stand wall |
DE102006039472A1 (en) * | 2006-08-23 | 2008-03-27 | Maha Maschinenbau Haldenwang Gmbh & Co. Kg | Lifting device, in particular for motor vehicles |
DE102016123383A1 (en) * | 2016-12-02 | 2018-06-07 | Johannes Baringer | LIFTING DEVICE |
-
2019
- 2019-06-25 DE DE102019209178.4A patent/DE102019209178A1/en active Pending
-
2020
- 2020-03-31 EP EP20167227.6A patent/EP3757057A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3722627A (en) * | 1970-10-28 | 1973-03-27 | Hofmann Maschf Geb | Two column lifting platform |
US5318154A (en) * | 1992-06-16 | 1994-06-07 | Hellman Jr Robert R | Column for load lifting devices |
CA2287113A1 (en) * | 1998-10-23 | 2000-04-23 | Wheeltronic Ltd. | Improved open-end, four-post vehicle lift |
DE20307315U1 (en) * | 2003-05-09 | 2003-10-02 | Herrmann, Johannes, 93413 Cham | Pillar type lifting platform has reinforcing plates located in sections along pillar profile and located outside clearance profile occupied by carriage so that no contact is provided between carriage and reinforcing plates |
EP2163505A2 (en) * | 2008-09-15 | 2010-03-17 | Otto Nussbaum GmbH & Co. KG | Lifting platform for vehicles |
JP2012171732A (en) * | 2011-02-21 | 2012-09-10 | Tsubaki Emerson Co | Lifting device |
US20150232311A1 (en) * | 2014-02-14 | 2015-08-20 | Vehicle Service Group, Llc | Articulating roller assembly for four-post vehicle lift |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024078452A1 (en) * | 2022-10-11 | 2024-04-18 | 广州好想法信息科技有限公司 | Portable car lifting mechanism and device, and system |
Also Published As
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DE102019209178A1 (en) | 2020-12-31 |
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