Winding – tensioning – or guiding – Reeling device – With particular drive
Reexamination Certificate
1999-08-05
2001-01-30
Jillions, John M. (Department: 3653)
Winding, tensioning, or guiding
Reeling device
With particular drive
C242S399100, C242S582000, C242S125100
Reexamination Certificate
active
06179239
ABSTRACT:
The present invention relates to a driving device for rotating a cable drum in a cable winding machine comprising a support frame and gripping pins arranged in the support frame to co-axially grip the respective drum flanges and to rotatably support the drum, whereby the driving device comprises a motor supported by the support frame and a driving wheel coupled to the motor and engageable into driving contact with a drum flange.
Such a winding machine is used especially in the cable industry for winding a cable onto a drum or from a drum but the winding machine is equally applicable for winding other similar products, such as threads, cords etc. To simplify matters the word ‘cable’ will in this description be used to include all such products and areas of application.
The winding machine operates so that the drum is gripped by the gripping pins of the machine and lifted up from the floor level to a fixed winding position, after which the drum is rotated by means of a driving device, the driving wheel of which is pressed against one flange of the drum. A design of such a winding machine provided with a driving device is disclosed in the applicant's European Patent Application No 91104161.4 (publication No 0 449 076) of Mar. 18, 1991. The driving device of that design comprises a motor that is supported in the support frame of the winding machine and a driving wheel that is coupled to the motor through a gear. The rotation axis of the driving wheel is parallel to the gripping pin axle of the winding machine.
Before the actual winding of the cable on the drum can be started the leading end of the cable has to be fastened to the drum so that the end is easily accessible for testing when the drum has been full wound. This requires that the cable end is first drawn up to the drum and further to such a position in relation to one flange of the drum that the cable end can be fastened at a certain point of the flange of the drum. The point where the cable is to be fastened varies depending on the one hand on the cable type and on the other hand on the drum type in question. In delivery drums made of wood the drum flange is provided with an opening, through which the cable end is drawn and fastened to the outer side of the drum flange. In delivery drums made of metal or plastic one flange of the drum is usually provided with an inner helical element to guide the cable end up to the proximity of the outer edge of the flange of the drum. In steel drums intended for oil-filled cables the cable end is indended to be inserted into an opening in the cylindrical body of the drum and connected to an oil tank arranged in the centre of the drum.
For drawing the cable end, especially of heavy cables, up to the place where it is to be fastened to the drum a winch arrangement for cable winding machines has been developed as disclosed in European Patent Application No 094 361. The winch arrangement comprises a rope wheel that is mounted on one of the gripping pins of the winding machine and is brought by means of a driver in engagement with the gripping pin and the rotation machinery of the winding machine, and a traction rope that can be wound on the outer periphery of the rope wheel. The free end of the traction rope is provided with a quick-locking device for gripping the cable end.
When the winding of the cable is to be started the quick-locking device for the traction rope is fastened to the cable end, after which the winch arrangement is started by the driving machinery of the winding machine so that the cable is drawn towards the stationary cable drum, standing on the floor between the gripping pins of the winding machine, by means of the traction rope being wound onto the rotating rope wheel. The drawing of the cable continues until the cable end has passed through the opening in the drum flange and has reached the point whereto it is to be fastened. After that the cable drum is lifted up from the floor by means of the gripping pins and is caused to rotate by the driving machinery of the winding machine, which rotates the cable drum by means of one of the gripping pins. When the drum has been fully wound the driving machinery is stopped and the quick-locking device released.
However, such a winch arrangement requires rope wheels of various sizes for drums of various sizes in order to draw the cable length through the opening in the drum flange without difficulties. This means that with a winch arrangement of this kind all available drum sizes cannot be handled. Furthermore, such a winch arrangement cannot be used in other drum types provided with helical elements and with central fastening means, as has been described above.
The object of the present invention is to obtain a driving device for a cable winding machine, where the above mentioned drawbacks have been eliminated and that is suited for all the different drum types and sizes and also for all available types of cable fastening means. Thus the invention makes it possible to use only one driving device for a cable winding machine. This is achieved by a driving device according to the invention, characterized in that the driving device is a winch provided with a wire drum connected to the motor.
The invention is based on the idea that the driving device is used not only for its normal task i.e. for rotating the cable drum by a contact between the driving wheel of the driving device and the drum flange but also for an additional task i.e. to operate as a winch for drawing the cable. For this purpose the driving device only has to be provided with a wire drum, while the motor, driving axle and gear already are provided.
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patent: 0094361 A3 (1983-11-01), None
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patent: 450184 B (1987-06-01), None
Jillions John M.
Nextrom Holding S.A.
Nixon & Vanderhye P.C.
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