ES473431A1 - Transportable crane with folding mast and boom - has system of cables and pulleys to lower mast for transport - Google Patents

Transportable crane with folding mast and boom - has system of cables and pulleys to lower mast for transport

Info

Publication number
ES473431A1
ES473431A1 ES473431A ES473431A ES473431A1 ES 473431 A1 ES473431 A1 ES 473431A1 ES 473431 A ES473431 A ES 473431A ES 473431 A ES473431 A ES 473431A ES 473431 A1 ES473431 A1 ES 473431A1
Authority
ES
Spain
Prior art keywords
mast
foot
boom
pulleys
cables
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
Application number
ES473431A
Other languages
Spanish (es)
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.)
PINGON INT
Original Assignee
PINGON INT
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 PINGON INT filed Critical PINGON INT
Priority to ES473431A priority Critical patent/ES473431A1/en
Publication of ES473431A1 publication Critical patent/ES473431A1/en
Priority to FR7917427A priority patent/FR2436097A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/26—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/74—Counterweights or supports for balancing lifting couples separate from jib

Landscapes

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

Abstract

The transportable crane has a mast which, when in use, is rigidly attached to the foot which is in turn fixed to the base. The boom can be folded about its mid point and is then swung downwards to hang by the side of the mast when being transported. The bolts fixing the mast to the foot are removed and the foot is swung outwards as the mast is swung downwards until it lies horizontally on the foot. This combined motion is controlled through an arrangement of cables, and pulleys which support the foot from the arm which is supported by a jack from the base.
ES473431A 1978-09-16 1978-09-16 Transportable crane with folding mast and boom - has system of cables and pulleys to lower mast for transport Expired ES473431A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES473431A ES473431A1 (en) 1978-09-16 1978-09-16 Transportable crane with folding mast and boom - has system of cables and pulleys to lower mast for transport
FR7917427A FR2436097A1 (en) 1978-09-16 1979-06-29 Transportable crane with folding mast and boom - has system of cables and pulleys to lower mast for transport

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES473431A ES473431A1 (en) 1978-09-16 1978-09-16 Transportable crane with folding mast and boom - has system of cables and pulleys to lower mast for transport

Publications (1)

Publication Number Publication Date
ES473431A1 true ES473431A1 (en) 1979-04-16

Family

ID=8476780

Family Applications (1)

Application Number Title Priority Date Filing Date
ES473431A Expired ES473431A1 (en) 1978-09-16 1978-09-16 Transportable crane with folding mast and boom - has system of cables and pulleys to lower mast for transport

Country Status (2)

Country Link
ES (1) ES473431A1 (en)
FR (1) FR2436097A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111656631A (en) * 2017-10-12 2020-09-11 株式会社永木精机 Work tool support device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1164241B (en) * 1983-05-25 1987-04-08 Luigi Cattaneo Spa AUTOMATIC LIFTING CRANE
FR2605619B1 (en) * 1986-10-27 1989-03-31 Potain Sa FOLDABLE MACHINE FOR HANDLING AND LIFTING LOADS
EP0331856B1 (en) * 1988-03-02 1991-10-23 Potain Foldable crane with rapid and automatic deployment
FR2765564B1 (en) * 1997-07-02 1999-08-27 Potain Sa MATURE FOLDABLE IN THREE ELEMENTS WITH FOLDING / FOLDING DEVICE FOR TOWER CRANE
EP0999171A1 (en) * 1998-11-05 2000-05-10 Gru Dalbe S.r.l. A foldable jib of a tower crane
DE102013006104A1 (en) * 2013-04-09 2014-10-09 Liebherr-Werk Biberach Gmbh Foldable crane jib and crane
ITMI20131510A1 (en) * 2013-09-12 2015-03-13 O M V Ohg Vicario S P A SELF-LIFT CRANE WITHOUT COUNTERWEIGHT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111656631A (en) * 2017-10-12 2020-09-11 株式会社永木精机 Work tool support device

Also Published As

Publication number Publication date
FR2436097A1 (en) 1980-04-11

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