Device for storing a wire in a wire bolting means
AssigneeOy Tampella AB
InventorJarmo Leppanen
Life of this patent
Estimating the term…
Abstract
A device for storing wire in a wire bolting arrangement, which device comprises a reel which supports a ring-shaped wire coil, and a supporter on which the reel is mounted for rotation. In order to prevent unintentional unwinding of the coil, and in order to simplify the replacement of the device, the reel is formed as an essentially closed housing which encloses the wire coil and which is provided with a central opening for drawing out a wire. The housing and the supporter are preferably formed as a separate, replaceable cassette fastened on the carrier of the bolting means.
Claims17
A device for storing wire for use in a wire bolting means, said device comprising:
- a reel for supporting a ring-shaped wire coil, said reel forming a closed housing for enclosing the wire coil, said reel having a first and second surface, said second surface having an opening through which said wire may be completely withdrawn for wire bolting;
- a supporter on which said reel is mounted for rotation about an axis, said opening being concentric with said axis;
- and
- a drum provided centrally in said reel around which a portion of said wire rotates, said wire being in engagement with said drum over at least one winding thereof, said wire forcing the reel to rotate relative to the supporter as said wire is withdrawn and, said drum extending through said opening for forming an annular decoiling slot with said opening through which said wire is withdrawn.
A portable means for wire bolting having a device for storing a wire, said wire bolting means comprising a movable carrier and bolting equipment attached to said carrier, said carrier having a bottom side to which said device for storing is attached, said bolting equipment being attached to an end of said carrier which is opposite an end at which said device for storing is located, said device for storing comprising:
- a supporter for detachably affixing said device to the bottom side of said carrier;
- a reel for supporting a ring-shaped wire, coil, said reel forming a closed housing for enclosing the wire coil, said reel having a top and bottom surface, said top surface being adjacent said supporter and said bottom surface having an opening therein;
- a drum provided centrally in said reel around which said wire is initially wound;
- means for rotatably attaching said drum and said reel to said supporter whereby both said drum and said reel are rotatable to permit discharge of said wire from said reel, said wire being drawn from said coil, around said drum, through said opening in the bottom surface of said reel and beneath said carrier to said bolting equipment;
- and
- means located on the bottom side of the carrier for receiving said supporter said means for receiving enabling said supporter along with said reel, said drum and said means for rotatably attaching to be attached to and detached from the bottom side of said carrier whereby when said wire is completely discharged, said reel, said drum and said means for rotatably attaching may be detached from said carrier and replaced with a reel, drum and means for rotatably attaching having wire within the reel.
A method for unloading and using wire from a device for storing said wire, said device comprising a reel, a supporter having an opening in a bottom surface thereof and a centrally located drum, said device being attachable beneath a portable carrier, said method comprising the steps of:
- initially storing said wire within said reel, said wire being wound in a coil encircling said drum;
- inserting said reel, said supporter and said drum with said wire beneath said portable carrier;
- withdrawing an end of said wire through said opening in the bottom surface of said drum;
- discharging all of said wire from said reel through said opening in the bottom surface of said drum;
- rotating at least said reel during said discharging;
- engaging a portion of said wire with said drum during said discharging;
- moving wire discharged from said reel beneath said carrier, said wire being moved between opposite ends of the carrier;
- feeding said wire to bolting equipment located on said carrier;
- and
- inserting said wire into a hole in at least a rock by said bolting equipment whereby said wire aids in bolting said rock.
Dependencies are inferred from the claim text.