EP0230403A1 - Hebevorrichtung für die Mastteile eines zusammengebauten Mastes, insbesondere eines beweglichen Antennenmastes der Fachwerkart - Google Patents

Hebevorrichtung für die Mastteile eines zusammengebauten Mastes, insbesondere eines beweglichen Antennenmastes der Fachwerkart Download PDF

Info

Publication number
EP0230403A1
EP0230403A1 EP87850011A EP87850011A EP0230403A1 EP 0230403 A1 EP0230403 A1 EP 0230403A1 EP 87850011 A EP87850011 A EP 87850011A EP 87850011 A EP87850011 A EP 87850011A EP 0230403 A1 EP0230403 A1 EP 0230403A1
Authority
EP
European Patent Office
Prior art keywords
mast
jacket
sections
transport screw
section
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.)
Granted
Application number
EP87850011A
Other languages
English (en)
French (fr)
Other versions
EP0230403B1 (de
Inventor
Bertil Jonsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jonsson Processmekanik AB
Original Assignee
Jonsson Processmekanik AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jonsson Processmekanik AB filed Critical Jonsson Processmekanik AB
Publication of EP0230403A1 publication Critical patent/EP0230403A1/de
Application granted granted Critical
Publication of EP0230403B1 publication Critical patent/EP0230403B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like

Definitions

  • the present invention refers to an elevating device for the mast sections of a sectional mast, especially a movable aerial mast of framework type and comprising a foot portion with a mast support and guide jacket, said elevating device including a power-operated screw mechanism.
  • Movable aerial masts have to fill a plurality of partly contradictory requirements. Thus, they have to be strong and rigid but still relatively light and easily mountable and dis­mountable.
  • Conventional mast structures usually are of frame­work type and the masts are put together from a number of sections. The mast is erected by arranging at a desired place a foot portion of the mast having a support and guide jacket therefor and introducing into said jacket the sections one by one, coupling them together with the nearest preceding section and raising them by means of any suitable raising and lowering mechanism a sufficient distance for allowing the introduction of the subsequent mast section into the jacket.
  • the conventional raising and lowering mechanisms have been rope blocks or chain winches having a hook which is connected with the lower end of each mast section after the same has been inserted into the guide jacket after which raising is made, the mast is locked, the hook released and the raising and lowering mechanism returned to the initial position for again connecting the hook to the lower end of the subsequent mast section.
  • an elongated transport screw extends vertically along one side of the guide jacket and approximately contacts externally with its periphery the peri­pheral contour of a mast section housed parallel therewith within the jacket and in that each mast section in its lower portion at the point of contact on the peripheral contour is provided with a mechanical component serving as a nut segment meshing with the threads of the transport screw.
  • the transport screw certainly operates intermittently but permanently in the same direction during the erection of the mast and in the opposite direction during the lowering of said mast.
  • the respective mast sections only need to be inserted into the support and guide jacket of the foot portion in order to be brought directly into meshing with the transport screw with its nut segment, after which the screw is rotated and the mast section together with the pre­ceding sections is raised a distance substantially corresponding to the length of one section, after which the subsequent mast section is introduced into the guide jacket, coupled to the preceding mast section and thereafter raised by means of the transport screw in cooperation with the nut segment of the last-mentioned section.
  • Fig 1 is a side elevational view of a mast with an elevating device according to the invention with a support and guide jacket in a foot portion of the mast and Fig 2 is a plan view from above of said guide jacket.
  • a movable aerial mast of framework type comprises a foot portion 1 and a plurality of mutually equal mast sections 2 of framework type and in the present case having triangular cross section.
  • the uppermost section carries in its upper end an aerial element such as a paraboloidal aerial 3.
  • the sections 2 are provided with suitable mountings for some suitable kind of coupling means such as a bolt connection of easy-coupling type.
  • the mast In its erected position the mast rests with its lowermost sections in a support and guide jacket 4 having an elevating device 5.
  • the jacket has the same general cross sectional shape as the mast sections 2, in the present case thus triangular shape, and surrounds the lowermost mast sections 2 with moderate clearance.
  • the height of the jacket substantially corresponds to the total length of two mast sections 2 and for stabilizing the mast the jacket 4 is provided with support legs 6 and side struts 7 protruding from the corners of the triangular cross section. From the top as well as from other levels of height of the mast, if desired, usually also extend span wires 8.
  • the jacket which suitably also is of framework type, is provided in the lower portion of one of its sides with an opening 10 in said side wall.
  • the mast sections 2 are guided by means of suitable guide members 11, preferably in the form of guide rollers cooperating with the corner edges of said mast sections 2.
  • the elevating or raising and lowering mechanism 5 comprises an elongated vertical transport screw 12 which is along another side of the guide jacket 4 also provided with a suitable opening.
  • the screw 12 has a length which at least corresponds to the length of each mast section 2 and extends from a bottom of the guide jacket 4 and upwardly to a position above the level of a mast section 2 standing on the bottom of the jacket 4 or, in other words above the open portion of the framework at the insertion and removal side of the jacket 4.
  • the transport screw 12 is connected with some suitable kind of drive mechanism 13 not further illustrated, such as a worm drive driven by an electric motor for 12 or 24 volts.
  • the device also is provided with a connection for mounting of a hand crank for allowing manual operation of the transport screw in case of lack of electric current.
  • the transport screw 12 is arranged in a plane coinciding with the center line of the adjacent jacket side such that the screw with its periphery approximately contacts externally one of the sides of a mast section 2 located in the jacket 4 and oriented parallelly thereto along an axis extending in said side, said axis preferably being the longitudinal center line of said side.
  • each mast section 2 according to the invention is provided at the lower end of said center line with a nut segment 14 adapted for meshing with the threads of said transport screw 12.
  • the nut segment may be constituted by a slide block of suitable material such as bronze or by a roller.
  • the mast provided with the elevating device according to the invention is erected in the following way. Firstly, the support and guide jacket 4 is arranged and levelled at the desired place and thereafter a first mast section 2 is inserted into the guide jacket 4 through the opening in one of the sides thereof, said section 2 of course being oriented in such a way that a side provided with a nut segment 14 is turned towards the side of the jacket 4 at which transport screw 12 is located. After that the rotation of the transport screw 12 is started and owing to the movement of the nut segment 14 along the threads of the screw 12 a raising of the mast section 2 through the jacket 4 is obtained. When the mast section 2 has been raised to such an extent that a subsequent mast section 2 can be inserted into the guide jacket 4, the rotation of the transport screw 12 is stopped.
  • the subsequent mast section 2 which has been inserted into the jacket 4 is coupled with its upper end to the lower end of the preceding mast section 2 by means of a bolt connection of easy-coupling type not further illustrated, after which the rotation of the transport screw 12 again is started, now in the same direction as during the first transport movement and without any need of a return movement such as in rope blocks or other raising and lowering mechanisms previously used for the same purpose. This is repeated until all, in the present case 19, mast sections have been brought into position and been coupled to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP19870850011 1986-01-17 1987-01-16 Hebevorrichtung für die Mastteile eines zusammengebauten Mastes, insbesondere eines beweglichen Antennenmastes der Fachwerkart Expired EP0230403B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8600213A SE451376B (sv) 1986-01-17 1986-01-17 Hoj- och senkanordning for mastsektioner vid en sektionsvis sammansettbar mast, serskilt en flyttbar antennmast av fackverkstyp
SE8600213 1986-01-17

Publications (2)

Publication Number Publication Date
EP0230403A1 true EP0230403A1 (de) 1987-07-29
EP0230403B1 EP0230403B1 (de) 1989-08-09

Family

ID=20363133

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870850011 Expired EP0230403B1 (de) 1986-01-17 1987-01-16 Hebevorrichtung für die Mastteile eines zusammengebauten Mastes, insbesondere eines beweglichen Antennenmastes der Fachwerkart

Country Status (3)

Country Link
EP (1) EP0230403B1 (de)
DE (1) DE3760412D1 (de)
SE (1) SE451376B (de)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE449601A (de) *
DE119095C (de) *
DE1066720B (de) * 1959-10-08
GB901116A (en) * 1960-02-12 1962-07-18 Pingon Pierre Joseph Self-erecting tower cranes
FR1325120A (fr) * 1962-03-23 1963-04-26 Installation de mât de support extensible
US3213575A (en) * 1961-09-19 1965-10-26 Boczek Walter Cranes
FR1543012A (fr) * 1967-10-24 1968-10-18 Dispositif de transformation d'un mouvement rotatif en une translation rectiligne, particulièrement pour le déplacement d'une charge
FR1585396A (de) * 1968-11-26 1970-01-16
AT292966B (de) * 1966-10-12 1971-09-27 Friedrich Freimueller Aus Schüssen aufgebauter Gittermast
FR2247913A6 (en) * 1971-07-22 1975-05-09 Comabi Elevator formed of scaffolding frames - has ladder elements enclosing vert. operating screws

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE449601A (de) *
DE119095C (de) *
DE1066720B (de) * 1959-10-08
GB901116A (en) * 1960-02-12 1962-07-18 Pingon Pierre Joseph Self-erecting tower cranes
US3213575A (en) * 1961-09-19 1965-10-26 Boczek Walter Cranes
FR1325120A (fr) * 1962-03-23 1963-04-26 Installation de mât de support extensible
AT292966B (de) * 1966-10-12 1971-09-27 Friedrich Freimueller Aus Schüssen aufgebauter Gittermast
FR1543012A (fr) * 1967-10-24 1968-10-18 Dispositif de transformation d'un mouvement rotatif en une translation rectiligne, particulièrement pour le déplacement d'une charge
FR1585396A (de) * 1968-11-26 1970-01-16
FR2247913A6 (en) * 1971-07-22 1975-05-09 Comabi Elevator formed of scaffolding frames - has ladder elements enclosing vert. operating screws

Also Published As

Publication number Publication date
EP0230403B1 (de) 1989-08-09
SE8600213D0 (sv) 1986-01-17
DE3760412D1 (en) 1989-09-14
SE8600213L (sv) 1987-07-18
SE451376B (sv) 1987-10-05

Similar Documents

Publication Publication Date Title
DE69517915T2 (de) Antriebsscheibenaufzug
EP0290208A1 (de) Flansch-Pfahl mit Scharnier
US4497591A (en) Advancing mechanism and system utilizing same for raising and lowering a work platform
CN117468684A (zh) 一种建筑施工用操作平台
EP0230403B1 (de) Hebevorrichtung für die Mastteile eines zusammengebauten Mastes, insbesondere eines beweglichen Antennenmastes der Fachwerkart
US4655640A (en) Advancing mechanism and system utilizing same for raising and lowering a work platform
DE2746216A1 (de) Klettervorrichtung, insbesondere in verbindung mit einem kran
EP0026543B1 (de) Ohne Hilfsmittel montierbare Teleskopstruktur
EP3321451A1 (de) Bühnenaufbau aus gerüstbauteilen mit einem durch einen hubturm heb- und senkbaren bühnendach
EP1205428B1 (de) Flurförderzeug mit einer Hubvorrichtung und einem Arbeitsscheinwerfer
KR960002897Y1 (ko) 차량 정비용 리프트 장치
CN106907044B (zh) 一种平板和柱形互转式应急通信塔体
CN214996606U (zh) 一种警示围栏装置
KR19980012760U (ko) 포터블 윈치
CH664340A5 (en) Storage rack with adjustable shelves - has flexible ties to link shelves and with servo drive for ties
CN220789542U (zh) 一种具有防撞击的智慧城市建设用道路安全防护栏
KR102761807B1 (ko) 타워크레인의 마스트 조립 및 해체 장치
CN116290920B (zh) 一种可拼接可折叠坡道
CN219823533U (zh) 一种升降式卸货平台
CN113697704B (zh) 一种具有多个检测结构的电葫芦限位装置
CN213477601U (zh) 装配式建筑可移动外挂施工平台
EP1153878A2 (de) Bedieneinrichtung für eine Hebebühne
GB2323073A (en) A collapsible tower
JPS5852568Y2 (ja) 電動昇降装置
JPH0444550Y2 (de)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI

17P Request for examination filed

Effective date: 19871212

17Q First examination report despatched

Effective date: 19881111

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI

ITF It: translation for a ep patent filed
ET Fr: translation filed
REF Corresponds to:

Ref document number: 3760412

Country of ref document: DE

Date of ref document: 19890914

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19920114

Year of fee payment: 6

Ref country code: FR

Payment date: 19920114

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920127

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19920128

Year of fee payment: 6

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19930116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19930131

Ref country code: CH

Effective date: 19930131

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930116

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19931001

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050116