EP0469269B1 - Aus- und einfahrbares Turmbauwerk - Google Patents

Aus- und einfahrbares Turmbauwerk Download PDF

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Publication number
EP0469269B1
EP0469269B1 EP91109853A EP91109853A EP0469269B1 EP 0469269 B1 EP0469269 B1 EP 0469269B1 EP 91109853 A EP91109853 A EP 91109853A EP 91109853 A EP91109853 A EP 91109853A EP 0469269 B1 EP0469269 B1 EP 0469269B1
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EP
European Patent Office
Prior art keywords
tower
run
elements
construction structure
structure according
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.)
Expired - Lifetime
Application number
EP91109853A
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German (de)
English (en)
French (fr)
Other versions
EP0469269A1 (de
Inventor
Konrad Dipl.-Ing. Dr.-Ing. Mult.E.H. Dr. Mult. Rer. Nat. H.C. Dr.Tech. H.C. Dr. H.C. Sc.Techn. Zuse
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Individual
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Individual
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Publication of EP0469269A1 publication Critical patent/EP0469269A1/de
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
    • E04H12/185—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic with identical elements

Definitions

  • the invention relates to an extendable and retractable tower structure with a plurality of tower elements, with at least one lifting device, at least one tower element magazine and at least one device for inserting the tower elements into the lifting device, the individual tower elements being connectable on the one hand to form a statically and stabilityally uniform tower element assembly and on the other hand can be stored in a magazine and the tower element first led out of the tower element magazine and inserted into the lifting device forms an upper closing element, the tower structure is extended by introducing further tower elements and lifting the tower element assembly and the last inserted tower element forms a base-side closing element.
  • the tower element assembly consists of a plurality of tubular and rod-shaped tower elements, each of which has complementary positive-locking connection elements at both ends.
  • the tower structure is extended by joining the tubular and rod-shaped tower elements together.
  • the tower structure also has a lifting device, a single tower element magazine and a single device for inserting the tower elements into the lifting device.
  • the lifting movement is brought about by a lifting cylinder arranged coaxially to the tower axis and below the tower base.
  • the tower element assembly is guided in the vertical direction by roller bearings with lateral support.
  • masts do not erect any larger tower structures, which may also have to carry heavy loads on the top of the tower, since a minimum diameter of the tower elements is determined depending on the requirements with regard to the extension height, bending strength, load-bearing capacity and static stability in the area of the tower structure base. With increasing diameter, however, the tower elements become heavy, bulky and therefore unwieldy. In particular, the required adaptation of the tower element magazine and the device for inserting the tower elements into the lifting device to the required size or the weight of the tower elements soon reached impractical and uneconomical dimensions.
  • the invention has for its object to provide an extendable and retractable tower structure with a plurality of tower elements, which is not subject to any particular restrictions with regard to the dimensions of the tower element assembly, meets all requirements with regard to static and dynamic stability and can carry heavy loads, but the elements thereof are manageable and storable.
  • the invention teaches that the tower elements can be strung together to form a helix, with several tower elements forming a full turn, and that the individual turns of the helix with the aid of support components and integral trained on the upper and lower edges of the tower elements Form-fit connections can be combined.
  • tower structure in the sense of the invention includes elongated structures of various dimensions, which rise vertically from the ground, for example also masts.
  • Extendable and retractable means that the tower structure can be reversibly erected or dismantled in the direction of the vertical longitudinal extension without any special measures.
  • Extendable and retractable tower structures are used, for example, when the tower structure is only required at periodic intervals or when a variable tower structure height is required.
  • a load can be arranged above the upper closure element.
  • a wind-powered electrical generator is only an example of a load. It is further understood that when the tower structure is extended, a load is introduced into the lifting device in front of the upper closure element, and that the underside of the load is adapted to the uppermost turn of the helical surface and can be connected to it.
  • the invention makes use of the knowledge that a tower structure can be erected by joining together a plurality of tower elements which, on the one hand, form an approximately cylindrical jacket surface with a particularly large dimension as a tower element assembly, and which on the other hand are easy to handle and store individually are done by arranging the tower elements in a spiral, the individual turns of which can be combined.
  • Such an arrangement of the tower elements enables the tower structure to be extended and retracted at least quasi-continuously.
  • a collapsible and extendable rod is known from the literature US Pat. No. 3,451,182 which is formed by a helix.
  • the helix consists of a single, flexible component.
  • a spiral made of a single component is not suitable for building a tower structure, since the component must have a length due to geometric constraints which is a multiple of the height of a tower structure. Furthermore, such a construction lacks axial resilience and loads cannot therefore be carried safely.
  • the upper and lower edges of the tower elements are offset from one another in the winding direction of the helix. It is also advantageous if three tower elements of adjacent turns of the helix are connected in a shear-resistant manner by means of the interlocking connections. As a result, thrust and / or shear forces that act in the direction of the helix are largely evenly distributed within the tower element assembly.
  • the individual turns of the helix are supported on one another only by their weight.
  • increased stability of the tower structure with regard to compressive or tensile forces acting laterally on the tower structure can be achieved by that the individual turns of the helix can additionally be connected in a tensile manner by releasable locking connections to the turns above or below.
  • the blocking connections prevent, for example, very strong winds from loosening the interlocking connections of adjacent turns of the helix.
  • Each tower element advantageously has at least one locking connection.
  • a particularly suitable tension-resistant connection is characterized in that the locking connection has a swivel lever with at least two legs which is located in relation to the helix, the swivel axis of which is arranged perpendicular to a first tower element, that one leg of the swivel lever has an outwardly pointing pin in the region of its leg end, which engages by pivoting the pivot lever in an associated recess of an overlying second tower element, and in that the second leg of the pivot lever has a slot which engages with a pin arranged on a third tower element which is arranged after the first tower element, whereby the pivoting lever can be pivoted into a locking position connecting the first and the second tower element in a tensile manner when the third tower element is inserted into the tower element assembly, and can be pivoted into an unlocking position when the third tower element is removed is.
  • the tensile connection or the disconnection takes place automatically with the insertion or removal of tower elements in / from the tower element
  • a preferred embodiment of the invention is characterized in that the tower elements have manipulation recesses or fittings with which bearing arms, manipulation arms and lifting arms can be brought into engagement.
  • Tower elements which are particularly easy to produce are characterized in that the support components are designed as reinforced edges with flat end faces and / or in that the positive-locking connections are designed as cylindrical pins and bores arranged on the end faces of the support components.
  • the lifting device is arranged within the wall of the tower element assembly, since this creates a particularly compact device.
  • a particularly advantageous embodiment of a tower structure according to the invention is characterized in that the lifting device has a stator arranged coaxially to the tower axis with radially outwardly pointing and axially displaceable supports, which are each equipped with at least one lifting arm which can be displaced in the radial direction, and a rotor with control surfaces which are in functional contact with the supports and the lifting arms, the number of supports being at least equal to the number of tower elements by which a full turn of the helix is formed, the supports being evenly distributed with respect to the tower element composite circumference, and the control surfaces according to the provision are formed that when rotating the rotor in periodic succession a tower element of a lifting arm is brought in from the outside of the tower element assembly in the radial direction and brought into alignment with the tower element assembly, the tower element nt is then introduced into the tower element assembly in a first lifting phase and then the entire tower element assembly is extended in a second lifting phase.
  • Such a tower structure is characterized by an automatable Operation of the retraction and extension process off.
  • a suitable drive for the rotor for example an electric motor
  • the tower structure can be retracted without additional drive, only under the effect of the weight of the tower element assembly.
  • a brake can be provided for retracting the tower structure and / or locking the position of the tower element assembly.
  • a possibly problematic transfer of a carrier in the vertical direction by the width of the helix at the end of one turn of the rotor is avoided if the number of carriers of the lifting device is twice as large as the number of tower elements of a turn and if two carriers form a pair of carriers, which control surface pairs are assigned to the rotor, the individual control surfaces of the control surface pairs being rotated with respect to one another with respect to the axis of rotation, provided that a tower element and the first lifting phase on the one hand and the second lifting phase on the other hand are alternately carried out by a carrier pair. At least the second lifting phases of the carriers of a carrier pair overlap while the rotor is being operated, so that the newly inserted tower elements are supported at all times.
  • each carrier or pair of carriers is assigned a tower element magazine and a device for inserting the tower elements into the lifting device.
  • a particularly space-saving storage of the individual tower elements is characterized in that a tower element magazine has at least one bearing arm on which a plurality of tower elements can be mounted vertically and one inside the other with an outwardly facing convex side and an inwardly facing concave side.
  • the device for introducing the tower elements into the lifting device has two manipulation arm sets which are radially and axially displaceable with respect to the axis of the tower elements and that the rotor has control surfaces which are in functional contact with the manipulation arm sets and are designed in such a way that the tower elements are moved successively from the tower element magazine in the radial direction towards the lifting device by alternating axial and / or radial displacement of the manipulator arm sets and are transferred to the lifting device taking into account the lifting device control surfaces.
  • a fully automatically extending and retracting tower structure can be formed, the operation of which only requires a corresponding control command from an operator or a control device. For example, in conjunction with an instrument for measuring the wind speed, the tower structure can be automatically retracted when the wind speed exceeds a certain limit.
  • FIG. 1 shows an extendable and retractable tower structure 1 with a plurality of tower elements 2, which are lined up in a spiral and the individual turns of which are combined. To simplify the side tower elements 2 were not drawn in an oblique projection.
  • a lifting device 3 with a stator 4 and a rotor 5 is indicated in the interior of the tower element assembly. On the stator 4 axially displaceably one can see two carriers 6, the axial positions of which are determined by control surfaces of the rotor 5.
  • the carriers 6 have lifting arms 7 which are displaceable in the radial direction and whose positions are also determined by control surfaces of the rotor 5.
  • 1 also shows tower element magazines 8, in which tower elements 2 can be placed individually.
  • the tower element magazines 8 there are also devices for inserting the tower elements 2 into the lifting device 3, which are not shown for the sake of clarity.
  • the one that led out of the tower element magazine when the tower structure was extended and into the Lifting device inserted tower element forms an upper end element 2a of the tower element assembly.
  • the tower element introduced last forms a base-side closure element 2b.
  • a load 9, which is carried by the tower element assembly, is also shown on the tower element assembly.
  • the underside of the load 9 is adapted to the shape of the uppermost turn of the helix of the tower element assembly and is connected to it.
  • Fig. 2 shows the extendable and retractable tower structure of Fig. 1 in a plan.
  • the tower elements 2 have a kink, so that the tower elements 2 can be strung together in a spiral.
  • a plurality of carriers are arranged in a star shape around the stator 4, two carriers 6 being assigned to a tower element 2 of the lowest turn of the helix.
  • This paired arrangement of the supports 6 enables the lifting arms 7 to be easily moved in order to bring in another tower element 2 for installation in the tower element network.
  • each pair of carriers 6 is assigned a tower element magazine 8 in a star-shaped arrangement.
  • FIG. 3 The detail view of a tower element assembly in FIG. 3 clarifies in particular the arrangement of the tower elements 2 in the tower element assembly and the further design of the tower elements 2. It is understood that the section shown represents a development in order to obtain a flat representation of the partial section of the helix.
  • the tower elements 2 are bent along the dashed lines. It can be seen that the upper and lower edges of the tower elements in the longitudinal direction of the Are offset from each other. Three tower elements 2 of adjacent turns of the helix are connected to one another in a shear-resistant manner by means of positive-locking connections. This arrangement of the tower elements 2 achieves a special static stability of the tower element assembly.
  • each tower element 2 has a locking connection 11.
  • a locking connection 11 consists of a pivot lever 12 with two legs 13, 14, the pivot axis of which is arranged vertically on a tower element 2.
  • the leg 13 of a pivot lever 12 has an outwardly facing pin 15 in the region of its leg end, which comes into engagement by pivoting the pivot lever 12 into an associated recess 16 of an overlying tower element 2.
  • the second leg 14 of the pivot lever 12 has a slot 17, which comes into engagement with a pin 18 of a tower element 2 arranged in series.
  • two locking connections 11 can be seen, which are pivoted into the locking position.
  • two locking connections 11 can be seen, which are in the unlocking position and are pivoted into the locking position in the course of the insertion of a further tower element 2. It is understood that with the removal of a tower element 2, the locking connection 11 is released.
  • the tower elements 2 also have manipulation recesses 19 with which bearing arms, manipulation arms and lifting arms can be brought into engagement.
  • support components 20 are formed as reinforced edges with flat end faces.
  • the positive connections are designed as cylindrical pins 21 and bores 22 arranged on the end faces of the support components.
  • a stator 4 is arranged coaxially with the tower element assembly, with guides 23 through which the carriers 6 are guided so as to be axially displaceable.
  • the carriers 6 point radially outwards and have lifting arms 7 which can be displaced in the radial direction. For the sake of clarity, only one carrier 6 of the carriers 6 arranged in pairs is shown.
  • the lifting device also has a rotor 5 with control surfaces 24, 25 for the axial movement of the carriers and for the radial movement of the lifting arms.
  • the control information for the axial displacement of the carrier 6 is removed from the associated control surface 24 by means of the control web 26.
  • control information for the radial movements of the lifting arms 7 is scanned by the control surface 25 by means of the swivel control lever 27. It is understood that different control surfaces 24, 25 are provided for each of the two carriers 6 of a pair of carriers, provided that at least one carrier 6 always holds an associated tower element 2 in the tower element assembly during one revolution of the rotor 5 until an underlying turn of the helix is listed.
  • a tower structure according to the invention is specified, in which the rotor 5 rotates about the axis of the tower element assembly, while the stator 4, the tower element assembly made of tower elements 2, the carriers 6, the tower element magazines 8 and the devices (not shown) for inserting the tower elements into the Lifting device are rigid with respect to a rotation about the axis of the tower element assembly.
  • a kinematic inversion which consists of the above Exchanging components with regard to their rotatability also fits within the scope of the invention.
  • the tower element assembly consisting of tower elements 2 rotates as the tower structure 1 is extended and retracted together with the stator 4, the supports 6, the tower element magazines 8 and the devices for introducing the tower elements into the lifting device.
  • Further modified embodiments of a retractable and retractable tower structure 1 according to the main claim do not leave the scope of the invention.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Wind Motors (AREA)
  • Warehouses Or Storage Devices (AREA)
EP91109853A 1990-08-02 1991-06-15 Aus- und einfahrbares Turmbauwerk Expired - Lifetime EP0469269B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4024574 1990-08-02
DE4024574 1990-08-02

Publications (2)

Publication Number Publication Date
EP0469269A1 EP0469269A1 (de) 1992-02-05
EP0469269B1 true EP0469269B1 (de) 1993-08-04

Family

ID=6411533

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91109853A Expired - Lifetime EP0469269B1 (de) 1990-08-02 1991-06-15 Aus- und einfahrbares Turmbauwerk

Country Status (5)

Country Link
US (1) US5249396A (enExample)
EP (1) EP0469269B1 (enExample)
JP (1) JPH05125858A (enExample)
DE (1) DE4119466A1 (enExample)
DK (1) DK0469269T3 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4119466A1 (de) * 1990-08-02 1992-02-06 Zuse Konrad Prof Dr Ing E H Dr Aus- und einfahrbares turmbauwerk
CA2457178C (en) 2000-09-22 2010-12-07 Steven A. Olsen Retractable column and method of forming
US7357365B2 (en) * 2003-04-17 2008-04-15 Tower Solutions, Llc Extendable/retractable support column
US7299589B2 (en) * 2003-10-22 2007-11-27 Harris Corporation Telescoping boom actuation mechanism formed of concentrically nested tubular boom sections mutually engaged by roller assemblies riding on helical tracks
US7213796B2 (en) * 2004-07-01 2007-05-08 Gestion Laforest Inc. Linear actuator with releasably interlocking bands
US20080283670A1 (en) * 2006-12-13 2008-11-20 Thomas Jeffrey Harvey K-truss deployable boom system
US8950125B2 (en) * 2010-10-29 2015-02-10 Tower Solutions, Llc Extendable/retractable support column
US10050342B1 (en) * 2014-09-10 2018-08-14 Lockheed Martin Corporation Self deploying axial drive actuator
WO2018220536A1 (en) * 2017-05-30 2018-12-06 Erickson Carl Mechanical linear actuators
US10920444B2 (en) 2018-03-22 2021-02-16 Tower Solutions, Llc Mobile tower for transportation and remote deployment
JP2024082899A (ja) * 2022-12-09 2024-06-20 トヨタ自動車株式会社 伸縮機構

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3451182A (en) * 1965-10-04 1969-06-24 Lawrence Edward Lodrick Collapsible poles
US3361377A (en) * 1965-12-30 1968-01-02 Melpar Inc Extendible-retractable boom
CH431917A (fr) * 1966-03-03 1967-03-15 Rubeli Jean Installation de mât extensible
US3474976A (en) * 1968-01-26 1969-10-28 Westinghouse Electric Corp Self-forming-boom retracting and deploying apparatus
DE2519558C2 (de) * 1975-05-02 1977-05-12 Orenstein & Koppel Ag Teleskopausleger mit hydraulischer betaetigung
US4257201A (en) * 1979-04-19 1981-03-24 American Hoist & Derrick Company Self-centering telescoping beams
DE2926292A1 (de) * 1979-06-29 1981-01-08 Harnischfeger Gmbh Insbesondere mobiler teleskopauslegerkran
US4478014A (en) * 1981-12-14 1984-10-23 Fmc Corporation Telescopic boom with angled corner construction
GB2202815B (en) * 1987-03-30 1991-07-24 Mantell Technical Services Lim Load pushing apparatus
DE3804193A1 (de) * 1988-02-11 1989-08-24 Rudolf Dr Ing Vogel Verfahren, vorrichtungen und einrichtungen fuer teleskopierbare maste von mobilen und stationaeren hubwerken
GB2218620B (en) * 1988-05-21 1992-04-29 Nigel Alastair Dent Telescopic beam
US4918896A (en) * 1988-10-17 1990-04-24 Harold Wiese Telescopic flagpole
US5035094A (en) * 1990-03-26 1991-07-30 Legare David J Nested extension/retraction structure and method of fabrication
DE4119466A1 (de) * 1990-08-02 1992-02-06 Zuse Konrad Prof Dr Ing E H Dr Aus- und einfahrbares turmbauwerk

Also Published As

Publication number Publication date
DE4119466A1 (de) 1992-02-06
DE4119466C2 (enExample) 1992-05-27
JPH05125858A (ja) 1993-05-21
EP0469269A1 (de) 1992-02-05
US5249396A (en) 1993-10-05
DK0469269T3 (da) 1993-10-18

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