CA2039837A1 - Clamping Device for Crane or the Like - Google Patents

Clamping Device for Crane or the Like

Info

Publication number
CA2039837A1
CA2039837A1 CA 2039837 CA2039837A CA2039837A1 CA 2039837 A1 CA2039837 A1 CA 2039837A1 CA 2039837 CA2039837 CA 2039837 CA 2039837 A CA2039837 A CA 2039837A CA 2039837 A1 CA2039837 A1 CA 2039837A1
Authority
CA
Canada
Prior art keywords
crane
clamping device
plunger
spring
limit switches
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
CA 2039837
Other languages
French (fr)
Other versions
CA2039837C (en
Inventor
Joseph-Jean Paques
Paul Michaud
Denis Lessard
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.)
IRSST-Institut de Recherche en Sante et en Securite du Travail
Original Assignee
IRSST-Institut de Recherche en Sante et en Securite du Travail
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 IRSST-Institut de Recherche en Sante et en Securite du Travail filed Critical IRSST-Institut de Recherche en Sante et en Securite du Travail
Priority to CA 2039837 priority Critical patent/CA2039837C/en
Publication of CA2039837A1 publication Critical patent/CA2039837A1/en
Application granted granted Critical
Publication of CA2039837C publication Critical patent/CA2039837C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/50—Applications of limit circuits or of limit-switch arrangements
    • 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
    • B66C23/88—Safety gear
    • B66C23/94—Safety gear for limiting slewing movements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

The disclosure herein describes a clamping device to be mounted to an element of a crane and which provides contact surfaces for limit switches that maintain the movement of a movable crane structure within predetermined limits. The clamping device defines a body having a top wall which is contacted by the limit switches and a side wall which cooperates with a plunger to clamp the device to the crane element. The plunger is spring-biased so that its head applies constant pressure against the crane element. The housing, in which the plunger is contained, includes a handle which acts as a lever to compress the spring to allow retraction of the head from the crane element and quick removal of the clamping device from the crane element.
CA 2039837 1991-04-04 1991-04-04 Clamping device for crane or the like Expired - Fee Related CA2039837C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2039837 CA2039837C (en) 1991-04-04 1991-04-04 Clamping device for crane or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2039837 CA2039837C (en) 1991-04-04 1991-04-04 Clamping device for crane or the like

Publications (2)

Publication Number Publication Date
CA2039837A1 true CA2039837A1 (en) 1992-10-05
CA2039837C CA2039837C (en) 1997-04-01

Family

ID=4147335

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2039837 Expired - Fee Related CA2039837C (en) 1991-04-04 1991-04-04 Clamping device for crane or the like

Country Status (1)

Country Link
CA (1) CA2039837C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100503414C (en) * 2007-03-30 2009-06-24 沈阳铝镁设计研究院 Clamper caging device for carbon block stacking overhead travelling crane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100503414C (en) * 2007-03-30 2009-06-24 沈阳铝镁设计研究院 Clamper caging device for carbon block stacking overhead travelling crane

Also Published As

Publication number Publication date
CA2039837C (en) 1997-04-01

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed