Abstract:
A trolley for moving heavy objects such as wire coils from a machine to a container at a packaging table is provided. The trolley includes spring-loaded spaced arms movably mounted for vertical height adjustment so that the arms are just below the coil when it is on the machine and rotational movement to separate the spaced arms with the spaced arms retaining the heavy object during movement of the trolley apparatus, and locking arms engaging the spaced arms during movement of the trolley apparatus to prevent separation thereof. The spring-loaded arms permit the heavy object to be manually pushed downward therebetween, thereby forcing the arms apart enabling the object to fall from the trolley into a container on a packaging table. The table includes a platform for supporting the container, a motor for raising/lowering the platform, and a mechanism for retaining the container and aiding its alignment with the coil.

Description:
BACKGROUND OF THE INVENTION 
     (1) Field of the Invention 
     This invention relates to apparatus and a process for unloading heavy packages from packaging machines and transporting them to a packaging table, and more particularly to such apparatus and a process for unloading heavy coils of wound filament material from a coil winding machine and transporting them to a coil packaging table. More specifically, the invention relates to such apparatus and process for unloading heavy coils of filament material wound in a REELEX figure eight configuration from a coil winding machine and transporting them to a coil packaging table that is capable of receiving the heavy package in a container positioned on the packaging table and has at least vertical degrees of movement. (REELEX is the trademark of REELEX Packaging Solution, Inc., 39 Jon Barrett Road, Patterson, N.Y. 12563. and registered under Trademark Registration Nos. 1,100,554 and 1,259,164. The REELEX wind is described in U.S. Pat. No. 5,678,778; High Speed, Dual Head, On-Line Winding Apparatus; issued Oct. 21, 1997; U.S. Pat. No. 5,979,812; Coil with large Payout Hole and Tube for Kinkless Payout; issued Nov. 9, 1999; and U.S. Pat. No. 6,766,627; Machine for Boxing Wound Coils of Filamentary Material; issued Jul. 27, 2004. 
     (2) (Description of Related Art 
     Prior to the subject invention, heavy coils of wound filament material were lifted manually from the coil winding machine, such as REELEX winders, and manually moved to a packaging table where the heavy coil was placed in a container. In all Reelex winding machines that require manual packaging, the coil is wound on a mandrel between two endforms. The mandrel has a plurality of segments (typically 6) that have a hinge arrangement that allows the mandrel segments to “collapse” once an endform is removed and the coil tugged on. This has the effect of making the mandrel diameter smaller so that the coil can be removed. In a typical layout, once the coil is completed, the operator would remove the endform, or it would be automatically removed, and tug on the coil. The mandrel segments would collapse and the coil would then be lifted off the mandrel. Then, in a typical factory set up, the operator would turn 180° and take one or two steps forward and place the coil on a table (packaging station). The packaging process consists of inserting a payout tube into the payout hole of the coil and threading the inner end of the wound material through the payout tube. The operator then lifts the coil and places it into a container. The container is then closed and lifted again to place it onto a pallet. 
     The present invention provides an apparatus that is used to help unload and support heavy coils of wound filamentary material from manual coil winders that are manually wheeled to a packaging station where they are placed in appropriate package containers for shipment or storage as the case may be. The Trolley device eliminates any need to ever lift the coil as will become apparent in the description. 
     However, the invention is not limited solely to the handling of heavy coils but, as will be apparent from the following description, has broad application to the handling of many objects other than coils that need to be moved from one place to a packaging table. 
     BRIEF SUMMARY OF THE INVENTION 
     The apparatus of the invention comprises a wheeled trolley apparatus used to help unload and support heavy coils of wound filamentary material from manual winding machines and transports them on the wheeled apparatus to a packaging table where they are deposited in appropriate coil containers on the packaging table. The packaging table itself has features, such as vertical movement and arms to position the container on the packaging table enabling the heavy coils to be deposited into an appropriate container on the packaging table. 
     The wound coil is manually removed, but not lifted, from the winding machine and placed on a wheeled trolley apparatus having two spaced arms for supporting the wound coil. The arms are mounted to a wheeled cart-like apparatus enabling the wound coil to be easily transported to a packaging table containing a container into which the coil is placed after being removed from the arms of the trolley apparatus. 
     The trolley apparatus and packaging table of the invention has specific application to the unloading of heavy coils of filamentary material wound in a figure-eight configuration known in the trade as a REELEX wind from a REELEX manual winding machine. The REELEX wind is described in the aforementioned U.S. patents. However, the invention is not limited to the handling of heavy wound coils of filamentary material, but has application to the handling of any type of heavy object that is to be transported from a machine to a packaging table. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
       The objects, features and advantages disclosed herein are readily apparent from the following description of a preferred embodiment of the best mode of carrying out the invention when taken in conjunction with the following drawings, wherein: 
         FIG. 1  is a front view of the wheeled trolley apparatus showing the spaced support arms for retaining the heavy wound coil in the trolley apparatus; the spaced arms are built around an axle and are free to spin. 
         FIG. 2  is a front view of the trolley apparatus showing the rotation of one of the spaced support arms to assist in placing the wound coil on the trolley apparatus and removal of the heavy wound coils from the trolley apparatus; 
         FIG. 3  is a rear view of the trolley apparatus showing the rotatable attachment of the spaced support arms to the back of the trolley apparatus and the rotatable locking/unlocking members for securing/releasing the spaced support arms for placing the heavy wound coils on the trolley apparatus and removing the heavy wound coils from the trolley apparatus. In this Fig. the rotatable locking/unlocking members are shown in their upright position for enabling rotation of the spaced support arms; 
         FIG. 4  is an oblique view of the back of the trolley apparatus showing the rotatable locking members in their locked position preventing movement of the spaced support arms; 
         FIG. 5  is an oblique view of the back of the trolley apparatus showing the guide rails for raising/lowering the platform for supporting the heavy coils, the guide rails for raising/lowering the locking mechanism and the attachment of the rotatable spaced support arms to the trolley apparatus and the torsion springs that keep the arms against stops; 
         FIG. 6  is a side view of the trolley apparatus showing the manual removal of the heavy wound coil from the winding machine; it is important to note that the coil is never lifted. By tugging on the coil, the mandrel collapses and the coil falls onto the support arms and with the locks on, the coil will not force the support arms apart; 
         FIG. 7  shows the heavy wound coil, having fallen onto the arms, being held by the Reelex machine operator to stabilize it on the arms of the trolley apparatus as it is withdrawn from the collapsed mandrel; 
         FIG. 8  shows a heavy wound coil on the trolley apparatus being rolled to a packaging table; 
         FIG. 9  shows the trolley apparatus with the heavy wound coil mounted between the arms of the trolley apparatus as the trolley apparatus approaches the packaging table; 
         FIG. 10  shows the heavy wound coil and trolley device being aligned with the package container; 
         FIG. 11 . With the arm locks turned to the unlock position, shows the heavy wound coil being pushed downward thereby forcing the two arms apart and allowing the coil to slide between them and into the package container. 
         FIG. 12  shows the heavy wound coil, having slipped between the arms, deposited in the package container; 
         FIG. 13  shows the trolley apparatus being removed from the vicinity of the package container; 
         FIG. 14  shows the trolley apparatus being completely removed from the package container and the heavy wound coil being placed in the package container; 
         FIG. 15  illustrates the packaging table and the trolley apparatus with a container positioned on the packaging table and with the trolley apparatus just removed from a position over the container; 
         FIG. 16  is an overhead view of the trolley apparatus at the packaging table and showing the position of the trolley apparatus and the spaced arms for supporting the heavy coil; 
         FIG. 17  is a side view of the packaging table with a container supported thereon and the vertical tower including a motor for raising and lowering the packaging table; and 
         FIG. 18  is an overhead view of the packaging table showing the vertical tower, foot-operated tread switches for raising and lowering the packaging table, and the spaced arms for holding the container on the packaging table. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       FIGS. 1 to 5  are directed to the construction of the trolley apparatus  10  and  FIGS. 6 to 15  are directed to the manner in which the trolley apparatus  10  is used to convey a heavy coil (e.g.,  50 ,  FIG. 6 ) from a winding machine to a container (e.g.,  54 ,  FIG. 9 ), mounted on a packaging table (e.g.  60 ,  FIG. 15 ), for shipment.  FIGS. 16 to 18  are directed to the packaging table for receiving the heavy package from the trolley apparatus  10  and the cooperation of the trolley apparatus  10  with the packaging table (e.g.,  60 ,  FIGS. 17 and 18 ). 
     The front view of the trolley apparatus  10  in  FIG. 1  includes frame member  12  with a carriage  14  having wheels  16  and  18  mounted on a wheeled platform  20 . Coil guide  22  is mounted on vertically extending slide member  24  to be movable vertically for reasons that will be described hereafter. Back support member  26  is also movably mounted to slide member  24  and includes spaced arm members  28 ,  30 . Spaced arm locking members  32 ,  34  serve to prevent outward movement of spaced arm members  28 ,  30  as is described hereinafter. In  FIG. 1  spaced arm locking members  32 ,  34  are shown in their inoperative position, i.e. enabling outward movement of spaced arm members  28 ,  30 . 
       FIG. 2  illustrates the manner in which a spaced arm member  30 , if unlocked, is free to rotate outward to enable the heavy coil to pass between the two arms when the coil is simply pushed downward. Spaced arm member  28  is illustrated in its normal rest position. 
       FIG. 3  illustrates the back of the trolley apparatus  10  with spaced arm members  28 ,  30  mounted on respective arm members  36 ,  38  attached to back support member  26 . The height of the back support member  26  can be adjusted to allow the height of the spaced arm members  28 ,  30  to accommodate different coil diameters when removing the coil from the winding machine. The height of the back support member  26  is adjusted so that the spaced arm members  28 ,  30  are just under the coil so that when the coil is tugged on it falls onto the spaced arm members  28 ,  30 . Spaced arm locking members  34  are mounted to a movable member  41  whereby the arm locking members  32 ,  34  can be moved vertically upwardly or downwardly in conjunction with the vertical movement of spaced arm members  28 ,  30 . Stop members  40 ,  42  limit the inward movement of the spaced arm members  28 ,  30 . Also, by raising or lowering arm members  38 ,  40 , the spacing of the spaced arm members  28 ,  30  will be altered. This is done to adjust the spacing between the spaced arm members  28 ,  30  to accommodate different coil diameters. Coil guide  22  is also shown. During the packaging process, when the coil is pushed downward—causing the arm members  36 , 38  and spaced arm members  28 ,  30  to open—the coil might hit the container edge closest to the trolley apparatus  10  and prevent the coil from properly entering the container. The coil guide  22  is a plate that is slightly angled from the vertical that “hides” the container&#39;s edge from the coil. The coil does not rest on the coil guide  22 . Rather, the coil is simply guided by the coil guide  22  as the coil enters a container. 
       FIG. 4  shows spaced arm locking member  32  engaging spaced arm member  28  thereby preventing rotation of the latter, which is the position of these members with a heavy coil (not shown in  FIG. 4 ) in the trolley apparatus  10 . 
       FIG. 5  is a detailed view of the back support member  26 , arm member  38 , with stop member  40  and spaced arm locking member  32  in its inoperative position, i.e. not engaging arm member  38 . Also visible are torsion springs  49  located around the rotation points of arm members  38  and  36  ( 36  not shown in  FIG. 5 ). The springs  49  are configured to prevent the weight of a coil from naturally opening the spacing between the arm members  36 ,  38  and spaced arm members  28 ,  30  if the spaced arm locking member  32  is in the “off” (i.e., unlocked) position. It is desired that the operator gently push downward on the coil to force the arm members  36 ,  38  and spaced arm members  28 ,  30  to separate and allow the coil to pass between the spaced arm members  28 ,  30 . 
     In  FIG. 6  the trolley apparatus  10  is shown with frame member  12  and spaced arm members  28 ,  30  (only member  28  shown in  FIG. 6 ) mounted thereon in spaced relation to one another to support heavy wound coil  50 , which is shown being removed by hand from a mandrel of a manually operated coil winding machine (not shown). As described earlier, the operator simply tugs on the coil which causes the mandrel segments to collapse naturally dropping the coil onto the spaced arm members  28 ,  30  of the trolley apparatus  10 . The operator does not lift the heavy coil  50 . 
     In  FIG. 7  the heavy coil  50 , having been dropped onto the trolley apparatus  10 , and resting between the spaced arm members  28 ,  30 , is being backed away from the winding machine (not shown). The trolley apparatus  10  includes wheels  16 ,  18  enabling the trolley apparatus  10  to be rolled from the winding machine to a packaging table  60  ( FIG. 15 ) (to be described later). The spaced arm members  28 ,  30  support the heavy coil  50  as shown in  FIGS. 8 and 9 . 
     In  FIG. 8  the heavy wound coil  50  is shown supported by spaced arm members  28 ,  30  mounted on trolley apparatus  10 , thereby enabling the heavy coil  50  to be easily rolled from the mandrel of the winding machine to the packaging table (shown in  FIGS. 9 to 14 ). 
     In  FIG. 9  the wheeled platform  20  of the trolley apparatus  10  is being aligned with a base  63  ( FIG. 15 ) and a platform  64  ( FIG. 10 ) of the packaging table  60  so that the heavy wound coil  50  is over a packaging container  54  in preparation for allowing the heavy wound coil  50  to drop into the packaging container  54 . The wheeled platform  20  of the trolley apparatus  10  and the base  63  of the packaging table  60  are designed as a mate to one another to aid with a left/right alignment process. 
     In  FIG. 10  the heavy wound coil  50  is shown aligned with the packaging container  54 . Not visible in the figure is the coil guide  22  discussed in [0029]. The coil guide  22 , which now covers the edge of the packaging container  54 , will prevent the coil  50  from hitting the edge of the packaging container  54  that is nearest the trolley apparatus. 
     In  FIG. 11  the operator would, at this time, insert a payout tube into the payout hole of the coil and thread the inner end of the coil through the payout tube. These few operations are not shown. In this figure the operator has unlocked the spaced arm member  28 ,  30  and is preparing to push downward on the heavy wound coil  50 . By the simple action of pushing down, the arm members  36 ,  38  and spaced arm members  28 ,  30  will separate against the resistance of the torsion springs  49  and the coil  50  will pass through the spaced arm members  28 ,  30  and drop into the packaging container  54  with absolutely no lifting of the heavy coil  50  required. 
     In  FIG. 12  the heavy coil  50 , having passed between the spaced arm members  28 ,  30 , is in the packaging container  54 . 
     In  FIG. 13  the trolley apparatus  10  is shown being withdrawn from the packaging container  54  with the heavy wound coil  50  placed inside the packaging container  54 . 
     In  FIG. 14  the trolley apparatus  10  is shown being wheeled or rolled away from the package container  54  on the packaging table and in  FIG. 15  the wheeled trolley apparatus  12  is shown completely removed from the packaging table  60 . 
     In  FIG. 15  the trolley apparatus  10  is shown wheeled away from the packaging table  60  so that the packaging container  54  can be closed for shipment or storage as the case may be. 
     The packaging table  60  is shown in  FIG. 15  supporting the packaging container  54  and with the trolley apparatus  10  removed from a position over the packaging table  60 . Presumably a heavy coil or other object has been removed from the trolley apparatus  10  and into the packaging container  54 . 
     In  FIG. 16  the spaced arm members  28 ,  30  of the wheeled trolley apparatus  10  are shown positioned over the packaging container  54  and, upon separation of the spaced arm members  28 ,  30 , the object supported by the trolley apparatus  10  can be deposited into the packaging container  54 . Also, the coil guide  22  discussed in [ 0029 ] is shown. The use of such a coil guide  22  can now be seen in greater detail. Once the trolley apparatus  10  is against the packaging container  54 , the coil  50  ( FIG. 6 ) might strike the edge of the packaging container  54  and prevent the coil  50  from properly entering the packaging container  54 . The guide  22  prevents this from happening. 
     In  FIG. 17  the packaging container  54  is supported by the packaging table  60 , and the packaging container  54  is held in position on the platform  64  by rotatable arms  66  (only one being shown in  FIG. 17 ). Vertical tower  68  consists of a vertical drive for raising and lowering the platform  64 . 
       FIG. 18  shows the packaging table  60  with platform  64 , arms  66  for retaining a container (e.g., packaging container  54 ) on the platform  64 , the vertical tower  68  and switches  70 ,  72  for controlling the raising or lowering of the platform  64 . Vertical tower  68  includes a mechanism for raising and lowering the 64 by foot-activated switch  70  for lowering the platform  64  and foot-activated switch  72  for raising the platform  64 . Vertical tower  68  includes limit switches (not shown) for controlling both the lower and upper limits of movement of the packaging table platform  64 . 
     The present invention enables heavy objects to be removed from a machine and placed on a trolley apparatus and rolled or wheeled to a packaging table where the heavy object may be relatively easily manually removed from the trolley apparatus and placed in a package container retained on the packaging table. The trolley apparatus utilizes spaced arms that are rotated to enable the heavy object to be placed on the trolley apparatus and to be separated at the package container station to enable easy removal of the heavy object from the trolley apparatus and lowered into a container at the package/container station. 
     The packaging table is used in conjunction with the trolley apparatus to retain a container on a platform of the packaging table with the container secured by arms on either side of the container and with a vertical tower controlled by switches to elevate or lower the platform. The packaging table thus offers a simple construction for supporting a container on the platform of the packaging table and for raising or lowering the platform to accommodate different sized containers. The trolley apparatus and the packaging table mate with one other to ensure the proper delivery of the heavy object to the packaging table. 
     The invention has specific application to enable heavy wound coils to be manually removed from a coil winding machine and placed on a trolley apparatus and rolled or wheeled to a heavy coil packaging table where the heavy wound coil with no lifting and minimal effort may be dropped in a coil package container. The trolley apparatus utilizes spaced arms that are rotated to enable the heavy wound coil to be placed on the trolley apparatus and to be separated, simply by unlocking the arms and pushing down on the heavy coil at the package container station to enable the heavy wound coil from the trolley apparatus to be dropped into a container at the coil package/container station. 
     The spaced arms are also mounted to be moved vertically to enable adjustment of the spaced arms. 
     Prior to this invention the heavy coil had to be manually moved from the mandrel of the winding machine and carried to the package container which was a strenuous exercise. 
     The base of the packaging table is designed to facilitate alignment with the trolley so that the trolley and the package container are aligned when the heavy coil is dropped into the container. 
     The design of the packaging table enables it to be raised or lowered by appropriate foot-activated control switches, the packaging table also includes rotatable arms on each side of the package container resting on the packaging table platform to prevent it from falling off the platform and to keep it properly aligned under the trolley. The height of the platform may be adjusted to enable the package to be handled more easily by the operator of the packaging table.