Global Patent Index - EP 1031531 A2

EP 1031531 A2 2000-08-30 - Level luffing crane

Title (en)

Level luffing crane

Title (de)

Wippkran

Title (fr)

Grue à porteé variable

Publication

EP 1031531 A2 (DE)

Application

EP 99125403 A

Priority

DE 19908485 A

Abstract (en)

The counterpoise drive which engages on either the crane base (15) or boom arm (13) has at least one piston/cylinder hydraulic force device which engages between the two articulated connections (25, 27). The hydraulic force device (29) is arranged above the swivel axis and is connected to the crane base and boom rigid against both tensile force and compressive force. The hydraulic force device has mechanical end stops between its cylinder (31) and its piston (33) displaceable therein.

Abstract (de)

Es wird ein Wippkran mit einer Kranbasis (9, 15), einem zwischen einer Flachstellung und einer Steilstellung schwenkbar an der Kranbasis (9, 15) gelagerten Wippausleger (13) und einem in einer ersten Gelenkverbindung (27) im Abstand von der Schwenkachse (11) des Wippauslegers (13) an der Kranbasis (9, 15) und in einer zweiten Gelenkverbindung (25) im Abstand von der Schwenkachse (11) am Wippausleger (13) angreifenden Wippantrieb (29) vorgeschlagen. Der Wippantrieb (29) weist wenigstens ein zwischen den beiden Gelenkverbindungen (25, 27) angreifendes Kolben-Zylinder-Hydraulikkraftgerät auf, das sowohl zugkraftsteif als auch druckkraftsteif mit der Kranbasis (9, 15) und dem Wippausleger (13) verbunden ist. Das Hydraulikkraftgerät (29) bildet mechanische Endanschläge zwischen einem Zylinder (31) und seinem in dem Zylinder verschiebbaren Kolben (33), die zugleich Wippwegbegrenzungsanschläge des Wippauslegers (13) bilden. <IMAGE>

IPC 1-7 (main, further and additional classification)

B66C 23/82; B66C 23/76

IPC 8 full level (invention and additional information)

B66C 23/76 (2006.01); B66C 23/82 (2006.01); B66C 23/92 (2006.01)

CPC (invention and additional information)

B66C 23/82 (2013.01); B66C 23/76 (2013.01); B66C 23/92 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1031531 A2 20000830; EP 1031531 A3 20040616; DE 19908485 A1 20000831

INPADOC legal status


2005-01-05 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20040701

2004-06-16 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2004-06-16 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

AL LT LV MK RO SI

2004-03-24 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7B 66C 23/82 A

2004-03-24 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7B 66C 23/76 B

2000-08-30 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-08-30 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI