SE8401843D0 - CRANE, INCLUDED WITH EQUIPMENT FOR REDUCTION OF PUSH TENSIONS - Google Patents

CRANE, INCLUDED WITH EQUIPMENT FOR REDUCTION OF PUSH TENSIONS

Info

Publication number
SE8401843D0
SE8401843D0 SE8401843A SE8401843A SE8401843D0 SE 8401843 D0 SE8401843 D0 SE 8401843D0 SE 8401843 A SE8401843 A SE 8401843A SE 8401843 A SE8401843 A SE 8401843A SE 8401843 D0 SE8401843 D0 SE 8401843D0
Authority
SE
Sweden
Prior art keywords
crane
tensions
push
reduction
equipment
Prior art date
Application number
SE8401843A
Other languages
Swedish (sv)
Other versions
SE8401843L (en
Inventor
G Astrom
E Hegglund
Original Assignee
Hegglund & Soner 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 Hegglund & Soner Ab filed Critical Hegglund & Soner Ab
Priority to SE8401843A priority Critical patent/SE8401843L/en
Publication of SE8401843D0 publication Critical patent/SE8401843D0/en
Priority to PCT/SE1985/000156 priority patent/WO1985004386A1/en
Priority to EP19850902179 priority patent/EP0175784A1/en
Publication of SE8401843L publication Critical patent/SE8401843L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • 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
    • B66C23/06—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 with jibs mounted for jibbing or luffing movements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Safety Of Cranes (AREA)
  • Braking Arrangements (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

In a crane with a braked hoisting winch a hoisting cable (6) runs over pulleys of which at least one (9) is carried by a working cylinder (10) attached to the bedframe of the crane, and which allows alteration of the distance between the bedframe and pulley. The working cylinder (10) is connected to the brake (12) via a braking force regulator (14). The braking force is reduced when the brake is on when a jerk of a given size occurs on the hoisting cable (6), whereby the jerk stress on the crane can be reduced.
SE8401843A 1984-04-03 1984-04-03 CRANE, INCLUDED WITH EQUIPMENT FOR REDUCTION OF PUSH TENSIONS SE8401843L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8401843A SE8401843L (en) 1984-04-03 1984-04-03 CRANE, INCLUDED WITH EQUIPMENT FOR REDUCTION OF PUSH TENSIONS
PCT/SE1985/000156 WO1985004386A1 (en) 1984-04-03 1985-04-02 Crane provided with equipment for reducing jerk stresses
EP19850902179 EP0175784A1 (en) 1984-04-03 1985-04-02 Crane provided with equipment for reducing jerk stresses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8401843A SE8401843L (en) 1984-04-03 1984-04-03 CRANE, INCLUDED WITH EQUIPMENT FOR REDUCTION OF PUSH TENSIONS

Publications (2)

Publication Number Publication Date
SE8401843D0 true SE8401843D0 (en) 1984-04-03
SE8401843L SE8401843L (en) 1985-10-04

Family

ID=20355427

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8401843A SE8401843L (en) 1984-04-03 1984-04-03 CRANE, INCLUDED WITH EQUIPMENT FOR REDUCTION OF PUSH TENSIONS

Country Status (3)

Country Link
EP (1) EP0175784A1 (en)
SE (1) SE8401843L (en)
WO (1) WO1985004386A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1545869A (en) * 1976-09-30 1979-05-16 Stothert & Pitt Ltd Luffing crane with safety device
US4271970A (en) * 1978-01-18 1981-06-09 William H. Miller Pedestal crane
US4252243A (en) * 1978-01-19 1981-02-24 Priestman Brothers Limited Crane safety device

Also Published As

Publication number Publication date
SE8401843L (en) 1985-10-04
EP0175784A1 (en) 1986-04-02
WO1985004386A1 (en) 1985-10-10

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Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8401843-1

Effective date: 19880517