FR2298503A1 - Crane fork load counterbalancing system - has lifting eye sliding on tubular member parallel to fork prongs - Google Patents

Crane fork load counterbalancing system - has lifting eye sliding on tubular member parallel to fork prongs

Info

Publication number
FR2298503A1
FR2298503A1 FR7601761A FR7601761A FR2298503A1 FR 2298503 A1 FR2298503 A1 FR 2298503A1 FR 7601761 A FR7601761 A FR 7601761A FR 7601761 A FR7601761 A FR 7601761A FR 2298503 A1 FR2298503 A1 FR 2298503A1
Authority
FR
France
Prior art keywords
fork
tubular member
lifting eye
sleeve
member parallel
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
FR7601761A
Other languages
French (fr)
Other versions
FR2298503B3 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2298503A1 publication Critical patent/FR2298503A1/en
Application granted granted Critical
Publication of FR2298503B3 publication Critical patent/FR2298503B3/fr
Granted 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
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
    • B66C1/445—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces motor actuated
    • B66C1/447—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces motor actuated by hydraulic or pneumatic motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/24—Single members engaging the loads from one side only

Abstract

The lifting eye slides on the upper boom of the fork assembly, which is a tubular load-supporting member (6) parallel to the plane of the lifting forks (4, 5). It is fixed to a sleeve (9) sliding and turning on the tubular member, which can be on the centre line between the forks, and has a disc (17) fixed to its end, larger than the internal diameter of the sleeve. Movement of the latter can be restricted by removable stops, and effected hydraulically, pneumatically or by an electric motor, the same means also being used to turn it on the member (6). The sliding movement can be carried out by a threaded spindle engaging the sleeve.
FR7601761A 1975-01-21 1976-01-19 Crane fork load counterbalancing system - has lifting eye sliding on tubular member parallel to fork prongs Granted FR2298503A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752502208 DE2502208B2 (en) 1975-01-21 1975-01-21 Crane fork with two load arms arranged parallel to one another

Publications (2)

Publication Number Publication Date
FR2298503A1 true FR2298503A1 (en) 1976-08-20
FR2298503B3 FR2298503B3 (en) 1978-10-13

Family

ID=5936889

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7601761A Granted FR2298503A1 (en) 1975-01-21 1976-01-19 Crane fork load counterbalancing system - has lifting eye sliding on tubular member parallel to fork prongs

Country Status (3)

Country Link
AT (1) AT345513B (en)
DE (1) DE2502208B2 (en)
FR (1) FR2298503A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488233A1 (en) * 1980-08-08 1982-02-12 Stobb Inc APPARATUS FOR LIFTING PAPER SHEETS SET INTO NOTEBOOKS, FOR MANUFACTURING BOOKS OR PERIODICALS
EP0563588A1 (en) * 1992-04-03 1993-10-06 Kinshofer Greiftechnik Gmbh Gripper, preferably gripper for piles of stones

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488233A1 (en) * 1980-08-08 1982-02-12 Stobb Inc APPARATUS FOR LIFTING PAPER SHEETS SET INTO NOTEBOOKS, FOR MANUFACTURING BOOKS OR PERIODICALS
EP0563588A1 (en) * 1992-04-03 1993-10-06 Kinshofer Greiftechnik Gmbh Gripper, preferably gripper for piles of stones

Also Published As

Publication number Publication date
AT345513B (en) 1978-09-25
DE2502208B2 (en) 1980-08-21
DE2502208A1 (en) 1976-07-22
ATA176A (en) 1978-01-15
FR2298503B3 (en) 1978-10-13

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Legal Events

Date Code Title Description
ST Notification of lapse