FIELD OF THE INVENTION
This invention relates generally to wire carriers and, more particularly, to collapsible wire carriers for use in winding and unwinding, transporting and storing coils of wire.
BACKGROUND OF THE INVENTION
A conventional carrier for a coil of wire consists of a plurality of vertically positioned rods or tubes in spaced relation on a disc-shaped base. The rods or tubes are joined to the base and at the top of the carrier to one another by welding. Wire carriers of this type are completed at a fabricating plant, and stacked together by nesting for storing and shipping. While a number of these carriers may be nested to form a relatively compact unit or package, the nested packages are difficult to handle and store. In order to be stored or shipped, they require an excessive amount of space, thus increasing the cost of shipping and storage. Further, this type of carrier is necessarily made relatively heavy and bulky in order to obtain the requisite amount of strength, particularly in the disc base.
U.S. Pat. No. 3,186,658 discloses a tubular collapsible wire carrier. However, this collapsible wire carrier has a “four leaf clover” base which may easily become caught on objects in a factory and cause damage. Furthermore, even when collapsed, the pieces of this collapsible wire carrier are relatively large and bulky and may be difficult to transport. If a forklift damages one of the legs of this collapsible wire carrier, at least two legs must be replaced.
Thus, there is a need for a tubular collapsible wire carrier which has legs which may be individually replaced if damaged.
There is further a need for a tubular collapsible wire carrier which may be broken down in more pieces than known collapsible wire carriers.
SUMMARY OF THE INVENTION
This invention comprises a collapsible wire carrier for storing and shipping wire. One embodiment of collapsible wire carrier comprises a base, a top and multiple legs, each leg being removably secured to the base and top of the carrier. The base may include multiple base extensions welded or otherwise secured to a generally rectangular base bottom. In one embodiment, each of the legs is tubular. The top, base and each of the legs may have multiple openings therein through which fasteners pass. The collapsible wire carrier may further comprise multiple connectors for joining the legs to the base and top, each of the connectors joining one of the legs to one of the base and top. In one embodiment, each of the connectors fits inside a portion of one of the legs. The collapsible wire carrier further comprises fasteners for removably securing the connectors to the legs, top and base. Each of the fasteners extends through one of the openings in one of the base, top and legs and into a passage in one of the connectors.
According to another aspect of this invention, the collapsible wire carrier comprises a base, a top and multiple legs. In this embodiment, the top, base and each of the legs has threaded ends therein for receiving connectors. The collapsible wire carrier further comprises multiple connectors for joining the legs to the base and top. Four of the connectors join the legs to the base and four other connectors join the legs to the top. Each of the connectors has threaded ends for engaging the legs of the collapsible wire carrier. Each of the connectors thus removably secures the legs to one of the top and base.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of one embodiment of collapsible wire carrier in an assembled condition;
FIG. 2 is a partially disassembled view of the collapsible wire carrier of FIG. 1;
FIG. 3 is an enlarged cross-sectional view of a portion of the collapsible wire carrier of FIGS. 1 and 2;
FIG. 4 is a perspective view of another embodiment of collapsible wire carrier in an assembled condition;
FIG. 5 is a partially disassembled view of the collapsible wire carrier of FIG. 4; and
FIG. 6 is an enlarged cross-sectional view of a portion of the collapsible wire carrier of FIGS. 4 and 5.
DETAILED DESCRIPTION OF THE DRAWINGS
Referring to the drawings, and particularly to FIG. 1, there is illustrated a collapsible wire carrier 10 for storing and transporting wire 11. The collapsible wire carrier 10 comprises a base 12 having a generally rectangular base bottom 13 comprising four corner pieces 14 and four straight side pieces 16 (only one being shown per side in FIG. 1). Although the base bottom 13 shown in FIG. 1 shows each of the sides 18 of the base bottom 13 being approximately the same length, they may be any desired lengths. The drawings are not intended to be limiting. Each of the pieces 14, 16 of base 12 may be tubular and sized to fit together when assembled.
As best shown in FIG. 2, the base 12 of collapsible wire carrier 10 further comprises a plurality of tubular base extensions 20 secured to the side pieces 16 of the base bottom 13, such as by welding. Each of the base extensions 20 is arched or bowed upwardly and inwardly towards the center of the base bottom 13. As shown in FIG. 2, two circular openings 22 are located at an upper portion of each of the tubular base extensions 20. These openings 22 are directed inwardly towards the center of the base bottom 13. Although the openings 22 are shown having a certain circular configuration, they may be other sizes or shapes. Although two openings 22 are illustrated extending through the wall of the upper portion of each tubular base extension 20, any number of openings may be present.
As best shown in FIG. 2, collapsible wire carrier 10 further comprises a top 24 comprising four top members 26 welded together. Each of the top members 26 may be tubular and have a downwardly turned lower portion 27 having two openings 28 extending through the tube wall. These openings 28 are directed inwardly towards the center of the top 24. Although the openings 28 are shown having a certain circular configuration, they may be other sizes or shapes. Although two openings 28 are illustrated extending through the wall of the lower portion 27 of each tubular top member 26, any number of openings may be present. Each of the top members 26 is welded to one of the other top members 26 to create a rectangular opening 30 in the top 24, as shown in FIGS. 1 and 2.
As best shown in FIG. 2, collapsible wire carrier 10 further comprises four straight tubular legs 32. Each leg 32 has at each end two openings 34 extending through the tube wall. These openings 34 are directed inwardly towards the center of the collapsible wire carrier 10. Although the openings 34 are shown having a certain circular configuration, they may be other sizes or shapes. Although two openings 34 are illustrated extending through the wall of each tubular leg 32 at each end of the leg 32, any number of openings may be present at each end of each leg 32.
As best shown in FIG. 2, collapsible wire carrier 10 further comprises eight connectors 36. Four of the connectors 36 join upper portions of the legs 32 to the top 24 of the collapsible wire carrier 10 and, particularly, to the downwardly turned portions 27 of the top members 26. Four other of the connectors 36 join lower portions of the legs 32 to the base 12 of the collapsible wire carrier 10 and, particularly, to the tubular base extensions 20 of base 12.
As shown in FIG. 3, each of the connectors 36 is a solid metallic piece having four aligned threaded openings 38 therein. Each of the threaded openings 38 is sized and adapted to receive a threaded fastener 40. Although the fasteners 40 are illustrated as being set screws, they may be any other conventional fasteners.
As shown in FIG. 2, each of the four connectors 36 used to join the base 12 to the legs 32 fits partially inside one of the base extensions 20 and partially inside a lower portion of one of the legs 32. The lower two openings 38 of each of these four connectors 36 align with the two openings 22 of one of the base extensions 20 so that two fasteners 40 may extend through two of the openings 22 of a base extension 20 and extend into the two of the openings 38 of a connector 36. Similarly, the upper two openings 38 of each of these four connectors 36 align with the two openings 34 of one of the legs 32 so that two fasteners 40 may extend through the openings 34 of a leg 32 and extend into the two of the openings 38 of a connector 36. The four connectors 36 thus join the legs 32 to the base 12 of the collapsible wire carrier 10 in a manner which is quick and easy.
As shown in FIG. 2, each of the four connectors 36 used to join the top 24 to the legs 32 fits partially inside one of the downwardly turned lower portion 27 of one of the top members 26 and partially inside an upper portion of one of the legs 32. The upper two openings 38 of each of these four connectors 36 align with the two openings 22 of one of the downwardly turned lower portion 27 of one of the top members 26 so that two fasteners 40 may extend through the openings 28 of a downwardly turned lower portion 27 of one of the top members 26 and extend into the two of the openings 38 of a connector 36. Similarly, the lower two openings 38 of each of these four connectors 36 align with the two openings 34 of one of the legs 32 so that two fasteners 40 may extend through the openings 34 of a leg 34 and extend into the two of the openings 38 of a connector 36. The four connectors 36 thus join the legs 32 to the top 24 of the collapsible wire carrier 10 in a manner which is quick and easy.
FIGS. 4-6 illustrate an alternative embodiment of collapsible wire carrier 10a for storing and transporting wire 11. The collapsible wire carrier 10a comprises a base 12a having a generally rectangular base bottom 13a comprising four corner pieces 14a and four straight side pieces 16a (only one being shown per side in FIG. 4). Although the base 12a shown in FIG. 4 shows each of the sides 16a of the base bottom 13a being approximately the same length, they may be any desired lengths. The drawings are not intended to be limiting. Each of the pieces 14a , 16a of base bottom 13a may be tubular and sized to fit together when assembled.
As best shown in FIG. 5, collapsible wire carrier 10a further comprises a plurality of tubular base extensions 20a secured to the side pieces 16a of the base 12a such as by welding. Each of the base extensions 20a is arched or bowed upwardly and inwardly towards the center of the base bottom 13a . As shown in FIG. 5, an upper portion 42 of each base extension 20a has a threaded opening 44 comprising internal threads 46. These internal threads 46 are either right or left handed threads for mating with corresponding external threads of one of the connectors in a manner described below.
As best shown in FIG. 5, collapsible wire carrier 10a further comprises a top 24a comprising four top members 26a welded together. Each of the top members 26a may be tubular and have a downwardly turned lower portion 27a having a threaded opening 48 comprising internal threads 50. The internal threads 50 are either right or left handed threads for mating with corresponding external threads of one of the connectors in a manner described below. Each of the top members 26a is welded to one of the other top members 26a to create a rectangular opening 30a in the top 24a , as shown in FIGS. 4 and 5.
As best shown in FIG. 5, collapsible wire carrier 10a further comprises four straight tubular legs 32a . Each leg 32a has at each end a threaded opening 52 comprising internal threads 54. The internal threads 54 are either right or left handed threads for mating with corresponding external threads of one of the connectors in a manner described below.
As best shown in FIG. 5, collapsible wire carrier 10a further comprises eight connectors 56. Four of the connectors 56 join upper portions of the legs 32a to the top 24a of the collapsible wire carrier 10a and, particularly, to the downwardly turned portions 27a of the top members 26a . Four other of the connectors 56 join lower portions of the legs 32a to the base 12a of the collapsible wire carrier 10a and, particularly, to the tubular base extensions 20a of base 12a.
As shown in FIGS. 5 and 6, each of the connectors 56 is a solid metallic piece having a middle non-threaded portion 55 and first and second threaded ends 58, 60, respectively. Each of the upper or first threaded ends 58 has external threads 62 sized and adapted to mate with the internal threads 54 of the legs 32a or the internal threads 46 of a base extension 20a or the internal threads 50 of a top member 26a.
As shown in FIG. 6, each of the four connectors 56 used to join the base 12a to the legs 32a fits partially inside one of the base extensions 20a and partially inside a lower portion of one of the legs 32a . The first or upper portion 58 of the connector 56 is threaded into the threaded opening 52 of one of the legs 32a . Similarly, second or lower portion 60 of the connector 56 is threaded into the threaded opening 44 of an upper portion 42 of a base extension 20a . The four connectors 56 thus join the legs 32a to the base 12a of the collapsible wire carrier 10 in a manner which is quick and easy.
As shown in FIG. 6, each of the four connectors 56 used to join the top 24a to the legs 32a fits partially inside one of the downwardly turned lower portions 27a of one of the top members 26a and partially inside an upper portion of one of the legs 32a . The first or upper portion 58 of the connector 56 is threaded into the threaded opening 48 of one of the downwardly turned portions 27a of the top members 26a . Similarly, second or lower portion 60 of the connector 56 is threaded into the threaded opening 52 of one of the legs 32a . The four connectors 36 thus join the legs 32a to the top 24a of the collapsible wire carrier 10a in a manner which is quick and easy.
Although the connectors are shown having a certain cross-sectional configuration, they may be other sizes or shapes. Similarly, the openings in the pieces of the collapsible wire carrier may be any desired shapes or sizes. Although we have described several embodiments of the invention, we do not intend to be limited except by the scope of the following claims.
Patent Grant
9120640
