Jib coupling system for jib stowage
AssigneeManitowoc Crane Companies, LLC
InventorWilliam Edward Hull
Life of this patent
Estimating the term…
Abstract
A jib coupling system a stowage coupling assembly having a locking member movable between a retracted position and an extended position, an extension pivot coupling system having a coupling member movable between a retracted position and an extended position, and a cable having a first end operably connected to the locking member and a second end having a locking pin. Movement of the locking member from the extended position to the retracted position causes the locking pin to engage the coupling member, and movement of the locking member from the retracted position to the extended position causes the locking pin to disengage the coupling member. The jib coupling system may be implemented as a part of a boom assembly and on a boom assembly of a mobile crane.
Claims20
A jib coupling system for coupling a jib to a boom, comprising:
- a stowage coupling assembly having a locking member movable between a retracted position and an extended position;
- an extension pivot coupling system having a coupling member movable between a retracted position and an extended position;
- and
- a cable having a first end operably connected to the locking member and a second end having a locking pin,
- wherein movement of the locking member from the extended position to the retracted position causes the locking pin to engage the coupling member, and movement of the locking member from the retracted position to the extended position causes the locking pin to disengage the coupling member.
A boom assembly for a construction vehicle, comprising:
- a boom having a base section and boom nose;
- a jib movable relative to the base section between a stowed condition and an extended condition;
- and
- a jib coupling system configured to couple the jib to the boom, the jib coupling system comprising:
- a stowage coupling assembly having a locking member movable between a retracted position and an extended position;
- an extension pivot coupling system having a coupling member movable between a retracted position and an extended position;
- and
- a cable having a first end operably connected to the locking member and a second end having a locking pin,
- wherein movement of the locking member from the extended position to the retracted position causes the locking pin to engage the coupling member, and movement of the locking member from the retracted position to the extended position causes the locking pin to disengage the coupling member.
The boom assembly 16, wherein the locking pin is urged into a positioning opening of the coupling member under the biasing force of the biasing element supplied through the cable, when the coupling member is in the extended position.
A mobile crane comprising:
- a boom assembly having a base section, a boom nose, and a jib movable relative to the base section between a stowed condition and an extended condition;
- and
- a jib coupling system configured to couple the jib to the boom, the jib coupling system comprising:
- a stowage coupling assembly having a locking member movable between a retracted position and an extended position;
- an extension pivot coupling system having a coupling member movable between a retracted position and an extended position;
- and
- a cable having a first end operably connected to the locking member and a second end having a locking pin,
- wherein movement of the locking member from the extended position to the retracted position causes the locking pin to engage the coupling member, and movement of the locking member from the retracted position to the extended position causes the locking pin to disengage the coupling member.
Dependencies are inferred from the claim text.