SE8002382L - TELESCOPERABLE TRUCK TRAIL EXTENSORS FOR TORN TURN CRANES - Google Patents

TELESCOPERABLE TRUCK TRAIL EXTENSORS FOR TORN TURN CRANES

Info

Publication number
SE8002382L
SE8002382L SE8002382A SE8002382A SE8002382L SE 8002382 L SE8002382 L SE 8002382L SE 8002382 A SE8002382 A SE 8002382A SE 8002382 A SE8002382 A SE 8002382A SE 8002382 L SE8002382 L SE 8002382L
Authority
SE
Sweden
Prior art keywords
jib
section
crab
pair
angle
Prior art date
Application number
SE8002382A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
H Noack
Original Assignee
Elba Maschinenfabrik Kaiser Gm
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
Priority claimed from DE19792912529 external-priority patent/DE2912529C2/en
Priority claimed from DE19792945106 external-priority patent/DE2945106A1/en
Application filed by Elba Maschinenfabrik Kaiser Gm filed Critical Elba Maschinenfabrik Kaiser Gm
Publication of SE8002382L publication Critical patent/SE8002382L/en

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
    • B66C23/342—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes with telescopic elements

Landscapes

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

Abstract

A telescopable crab jib for tower slewing cranes comprises a jib base member (40) and a jib head member (41) each of box shaped cross-section and each having a track (21, 22) for a traversible crab, wherein the jib base member and the jib head member, to the extent to which they form the appropriate portion of the crab track, each comprise an identical pair of angle sections (33 or 38), both pairs of angle sections (33 or 38) forming a common continuous crab track (200) in flush alignment when the jib is extended as shown in Figure 6, a box section being arranged above each pair of angle sections (33 or 38), and wherein in order to obtain the retracted state of the crab jib as shown in cross-section in Figure 5 the angle section pair (38) of the jib head member and associated box section (34 to 37) of smaller size are retractable into the jib base member having an angle section pair (33) and associated box section (26) of larger size. <IMAGE>
SE8002382A 1979-03-29 1980-03-27 TELESCOPERABLE TRUCK TRAIL EXTENSORS FOR TORN TURN CRANES SE8002382L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792912529 DE2912529C2 (en) 1979-03-29 1979-03-29 Telescopic trolley jib for tower cranes
DE19792945106 DE2945106A1 (en) 1979-11-08 1979-11-08 Slewing crane telescoping crab jib - has jib head beam retractable into jib head guide, both being of box shaped cross=section

Publications (1)

Publication Number Publication Date
SE8002382L true SE8002382L (en) 1980-09-30

Family

ID=25778477

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8002382A SE8002382L (en) 1979-03-29 1980-03-27 TELESCOPERABLE TRUCK TRAIL EXTENSORS FOR TORN TURN CRANES

Country Status (5)

Country Link
ES (1) ES489997A1 (en)
FR (1) FR2452461A1 (en)
GB (1) GB2045202B (en)
IT (1) IT1127007B (en)
SE (1) SE8002382L (en)

Also Published As

Publication number Publication date
ES489997A1 (en) 1980-10-01
IT1127007B (en) 1986-05-21
IT8048256A0 (en) 1980-03-25
GB2045202A (en) 1980-10-29
GB2045202B (en) 1982-11-17
FR2452461A1 (en) 1980-10-24

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