US20030197087A9 - Reel flange having radially outward and axially outward extending outer rim - Google Patents
Reel flange having radially outward and axially outward extending outer rim Download PDFInfo
- Publication number
- US20030197087A9 US20030197087A9 US10/164,884 US16488402A US2003197087A9 US 20030197087 A9 US20030197087 A9 US 20030197087A9 US 16488402 A US16488402 A US 16488402A US 2003197087 A9 US2003197087 A9 US 2003197087A9
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- United States
- Prior art keywords
- flange
- core
- reel
- section
- outer rim
- Prior art date
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- Abandoned
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- 239000000463 material Substances 0.000 description 9
- 239000002131 composite material Substances 0.000 description 5
- 239000000123 paper Substances 0.000 description 5
- 239000011087 paperboard Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
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- 230000000153 supplemental effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/04—Kinds or types
- B65H75/08—Kinds or types of circular or polygonal cross-section
- B65H75/14—Kinds or types of circular or polygonal cross-section with two end flanges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/50—Storage means for webs, tapes, or filamentary material
- B65H2701/51—Cores or reels characterised by the material
- B65H2701/512—Cores or reels characterised by the material moulded
- B65H2701/5122—Plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/50—Storage means for webs, tapes, or filamentary material
- B65H2701/51—Cores or reels characterised by the material
- B65H2701/512—Cores or reels characterised by the material moulded
- B65H2701/5124—Metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/50—Storage means for webs, tapes, or filamentary material
- B65H2701/51—Cores or reels characterised by the material
- B65H2701/515—Cores or reels characterised by the material assembled from parts made of different materials
- B65H2701/5152—End flanges and barrel of different material
- B65H2701/51524—Paperboard barrel
Definitions
- the present invention relates generally to reels for supporting wound flexible media, and in particular, to reels having a core and at least one attachable flange.
- Reels for supporting wound flexible media are employed to both store and facilitate the dispensing of wound media such as rope, wire, chain, and strings of parts.
- the essential elements of a reel include its core, around which the flexible media is wound, and its flanges, which prevent the wound flexible media from migrating axially off of the core.
- One reel design that has gained popularity for certain applications includes a reel in which the core is constructed of a pressed paperboard material and the flanges are constructed of a composite or plastic material.
- the use of paper and plastic components, in general, provides a high strength to weight ratio and facilitates the use of relatively straightforward manufacturing techniques.
- Another lightweight reel design consists of a pressed paperboard core and corrugated paper flanges.
- all-paper reels provide significant economy and light weight
- all-paper reels are not suitable for certain medium to heavy duty applications because the paper flanges do not have the strength of plastic, wood, or steel flanges
- plastic or composite flanges provide an advantageous combination of manufacturability, light weight, and strength.
- Reels having composite or plastic flanges are relatively simple to manufacture.
- the flanges may be formed using injection molding techniques.
- the flanges are then attached to the core. While the manufacturing process is relatively simple, the labor involved in the reel assembly process nevertheless contributes significantly to the manufacturing cost of the reel.
- One source of labor cost arises from the process of securing the flanges to the reel.
- Flanges have been secured to reels using a number of methods.
- the selection of an attachment mechanism must balance the need for a secure attachment with low manufacturing cost.
- the use of staples to attach a plastic flange to a paperboard hub is well-known, and is discussed, for example, in U.S. Pat. No. 5,660,354 to Ripplinger.
- the drawbacks of stapling include the labor involved with the application of the several staples that are necessary to provide a secure attachment between the flanges and the core.
- the present invention fulfills the above needs, as well as others, by providing a flange that has features that deformingly engage a pliable end of the core to secure the core to the flange. More specifically, the flange includes an inward extending ridge and an outward extending ridge that deformingly engage the pliable end of the core. By deformingly engaging the pliable end using inward and outward extending ridges, the pliable end of the core is deformed in opposing directions, thereby securing the pliable end (and the core) to the flange. The resulting reel may thus be formed by advancing the core such that the pliable end advances between the inward and outward extending ridges. As a result, other securing mechanisms, such as bolts or staples need not be used.
- An exemplary embodiment of the present invention includes a reel for supporting wound flexible media that comprises a core, a first flange and a second flange.
- the core has a first pliable end and a second end, the first pliable end defining a first cross-sectional shape.
- the first flange has an outer section and an inner section.
- the outer section includes an inner rim, the inner rim including a radially inward extending ridge defining at least a portion of a periphery corresponding substantially to the first cross-sectional shape and configured to deformingly engage the first pliable end.
- the inner section includes an outer rim, the outer rim including a radially outward extending ridge defining at least a portion of a periphery corresponding substantially to the first cross-sectional shape and configured to deformingly engage the first pliable end.
- the second flange is coupled to the second end.
- An exemplary method includes a method of manufacturing a reel for supporting wound flexible media, the reel including a core having a first pliable end, the first pliable end defining a first cross-sectional shape.
- the method includes a step of disposing at least a portion of a first flange on a support, the first flange having an outer section and an inner section, the outer section including an inner rim, the inner rim including a radially inward extending ridge having a periphery corresponding substantially to the first cross-sectional shape, and the inner section including an outer rim, the outer rim including a radially outward extending ridge having a periphery corresponding substantially to the first cross-sectional shape.
- the method further includes the step of advancing the core past the radially outward extending ridge and the radially inward extending ridge such that at least one of the radially outward extending ridge and the radially inward extending ridge deformingly engage the first pliable end. Finally, the method includes the step of securing a second flange to the core.
- the method and apparatus of the present invention forms a secure attachment between the flange and the core without separate fasteners such as bolts or staples. Even if supplemental fasteners are used, the reel of the present invention provides a much more secure attachment through the deforming engagement of the ridges and pliable end.
- the inner and outer extending ridges are wedge-shaped such that the ridges are tapered from the inside out in the axial direction. The wedge-shaped ridges facilitate movement of the pliable end of the core into a position between the ridges, yet resist movement of the pliable end of the core back out of that position.
- FIG. 1 shows a perspective view of a first exemplary embodiment of a reel according to the present invention
- FIG. 2 shows a cutaway cross-sectional view of a flange of the reel of FIG. 1 wherein the flange is removed from the core of the reel;
- FIG. 3 shows a cutaway cross-sectional view of the outer section of the flange of FIG. 2 wherein the outer section is removed from the inner section of the flange;
- FIG. 4 shows a cutaway cross-sectional view of an inner section of the flange of FIG. 2 wherein the inner section is removed from the outer section of the flange;
- FIG. 5 shows a plan view of the outer section of the flange of FIG. 2 wherein the outer section is removed from the inner section of the flange;
- FIG. 6 shows a plan view of the inner section of the flange of FIG. 2 wherein the inner section is removed from the outer section of the flange
- FIG. 7 shows an enlarged, partial, cutaway cross-sectional view of the reel of FIG. 1.
- FIG. 8 shows a perspective view of a second exemplary embodiment of a reel according to the present invention.
- FIG. 9 shows a cutaway cross-sectional view of a flange of the reel of FIG. 2 wherein the flange is removed from the core of the reel;
- FIG. 10 shows a plan view of the flange of FIG. 2
- FIG. 11 shows a fragmentary plan view of a third exemplary embodiment of a reel according to the present invention, with the core shown in cross section;
- FIG. 12 shows an exploded view of the reel of FIG. 11
- FIG. 13 shows a top plan view of a plug of the reel of FIG. 11;
- FIG. 14 shows a fragmentary plan view of a flange fin of the reel of FIG. 11;
- FIG. 15 shows a plan view of the flange fin of FIG. 14 taken along view 15 - 15 of FIG. 14;
- FIG. 16 shows a fragmentary plan view of a fourth exemplary embodiment of a reel according to the present invention with the core shown in cross section;
- FIG. 17 shows an exploded fragmentary view of the reel of FIG. 16.
- FIG. 1 shows an exemplary embodiment of a reel 10 according to the present invention which includes a core 12 , a first flange 14 and a second flange 16 .
- the core 12 has a first pliable end 13 (see FIG. 7) and a second end 15 .
- the first pliable end 13 has a first cross-sectional shape, which in the exemplary embodiment discussed herein is a circular cross-sectional shape. It is noted that the core 12 typically, but not necessarily, has a substantially uniform cross-sectional shape.
- the core 12 comprises a pressed paperboard tube.
- the first flange 14 includes an outer section 18 (see also FIG. 3) and an inner section 20 (see also FIG. 4).
- the outer section 18 and the inner section 20 are preferably molded of a plastic or composite material. However, metal and other rigid materials may be used while still retaining many of the advantages of the present invention.
- the outer section 18 and the inner section 20 are separate, distinct structures.
- the outer section 18 includes a main retaining member 22 , an outer rim 24 , and an inner rim 26 .
- the retaining member 22 provides the structure to support and retain wound flexible media when it is loaded onto the core 12 .
- the outer rim 24 extends axially from the outer periphery of the main retaining member 22 and the inner rim 26 extends axially from the inner periphery of the main retaining member 22 .
- the shape of the inner rim 26 corresponds to the first cross-sectional shape, i.e., the shape of the first pliable end 13 of the core 12 .
- the inner rim 26 has a shape that corresponds to the shape of the first pliable end 13 because, as discussed more fully below, the inner rim 26 forms a boundary of a channel in which the first pliable end 13 is retained. (See FIG. 7).
- the main retaining member 22 defines an annulus such that the outer rim 24 and the inner rim 26 are substantially circular. It will be noted however, that the exact shapes of the outer rim 24 and the retaining member 22 are a matter of design choice.
- the inner rim 26 includes a radially inward extending ridge 28 defining at least a portion of a periphery corresponding substantially to the first cross-sectional shape. As shown in FIG. 7, the radially inward extending ridge 28 is configured to deformingly engage the first pliable end 13 of the core 12 . In other words, when the reel 10 is assembled, the first pliable end 13 is deformed around the radially inward extending ridge 28 .
- the radially extending ridge 28 while generally defining a periphery corresponding to the first cross-sectional shape, may comprise broken segments of a theoretically continuous periphery, such as is shown in FIG. 3.
- drive holes, feeder holes, and/or other design features of the flange 14 which are known to those of ordinary skill in the art, create breaks, such as the breaks 30 , in the periphery defined by the radially inward extending ridge 28 .
- Such breaks 30 typically also interrupt the continuity of the inner rim 26 itself.
- the cross section of the radially inward extending ridge 28 is preferably tapered, or wedge-shaped, to assist in assembly of the reel 10 .
- the wedge shape of the radially inward extending ridge 28 facilitates movement of the core 12 in the direction B, as is needed to assemble the reel 10 , and inhibits movement of the core 12 in the direction A, thereby securing the core 12 to flange 14 .
- the radially inward extending ridge 28 includes a first face 40 and a second face 42 .
- the first face 40 extends from the inner rim 26 at a first angle with respect to the radial plane.
- the second face 42 extends from the inner rim 26 at a second angle with respect to the radial plane.
- the first face 40 is axially inward from the second face 42 with respect to the core 12 .
- the first angle is greater than the second angle, thereby defining the wedge-shape of the radially inward extending ridge 28 .
- the second face 42 extends in a direction that has less of an axial component than the direction in which the first face 40 extends.
- the first face 40 provides a more tapered axial path interruption than the second face 42 . Because the axial path interruption introduced by the first face is more tapered, the core 12 is more easily advanced in the direction B (from the first face 40 to the second face 42 ), as when the reel 10 is assembled, than in the direction A (from the second face 42 to the first face 40 ), as when the reel 10 would be broken apart.
- the inner section 20 comprises a hub-like structure defined by a main body 32 , and arbor rim 34 , and an outer rim 36 .
- the arbor rim 34 defines an arbor opening 35 in the inner section 20 .
- the arbor opening 35 cooperates with a like arbor opening on the other flange 16 of the reel 10 to allow rotation of the reel 10 about a central axle, not shown.
- the main body 32 in the exemplary embodiment is generally disk-shaped, and may include typical features of a reel hub, such as drive holes 37 , support ribs 39 and/or other features.
- the outer rim 36 includes a radially outward extending ridge 38 defining at least a part of a periphery corresponding substantially to the first cross-sectional shape. The radially outward extending ridge 38 is thus configured to deformingly engage the first pliable end 13 (see FIG. 7).
- the radially outward extending ridge 38 is preferably wedge-shaped.
- the radially outward extending ridge 38 includes a third face 44 and a fourth face 46 .
- the third face 44 is axially inward from the fourth face 46 with respect to the core 12 (see FIG. 7).
- the third face 44 extends from the outer rim 36 at a third angle with respect to the radial plane and the fourth face 46 extends from the outer rim 36 at a fourth angle with respect to the radial plane. Similar to the first angle of the first face 40 and the second angle of the second face 42 , the third angle is greater than the fourth angle. Because the third angle is greater than the fourth angle, the core 12 is more easily advanced in the direction B than in the direction A. As a result, less force is required to assemble the reel 10 than to break apart the reel 10 .
- the radially inward extending ridge 28 and the radially outward extending ridge 38 deform the core 12 in opposing directions, thereby grasping the core 12 therebetween.
- the core 12 resists movement in the direction A by any number of physical characteristics.
- the wedge-shaped nature of the first face 40 and the second face 42 may create in some embodiments a barbing engagement between the core 12 and the ridges 28 and 38 .
- the ridges 28 and 38 may provide a barbing engagement with the core 12 .
- the ridges 28 and 38 tend to dig into the material of the core 12 , for example, paperboard, to help inhibit movement of the core 12 in the direction A with respect to the flange 14 .
- the deforming engagement of the core 12 in opposing directions by the ridges 28 and 38 enhance the digging retention force.
- Another physical characteristic that may help inhibit movement of the core 12 in the direction A arises from the configuration of the outer section 18 and the inner section 20 as separate distinct components. Because the outer section 18 and the inner section 20 are separate components, they are capable of relative axial movement with respect to each other.
- the primary force that would cause relative axial movement of the outer section 18 and the inner section 20 is the axially outward force of the payload (not shown) against the retaining member. Such force tends to urge the outer section 18 in the direction A relative to the inner section 20 .
- the ridges 28 and 38 clamp or pinch the first pliable end 13 . Such clamping and pinching further inhibits axial movement of the core 12 in the direction A. Accordingly, the use of an outer section 18 and an inner section 20 that are capable of relative movement may provide enhanced integrity of the core 12 to the flange 14 .
- the second flange 16 may suitably have the same structure.
- the above described embodiment of the present invention provides an advantage of a secure interconnection between the flanges 14 and 16 resulting from the deformation of the first pliable end 13 of the core 12 by the opposing ridges 28 and 38 .
- Another advantage of the invention is the reduced labor requirements in manufacturing the reel 10 .
- the combination of the provision of a secure attachment with reduced labor requirements desirably reduces the relative cost of the reel 10 as compared to reels of similar strength using staples or the like.
- the outer section 18 and the inner section 20 of the flange 14 are formed as two separate pieces.
- the outer section 18 and the inner section 20 are preferably molded as a single piece using single mold (not shown).
- the mold design may include breakaway connectors 50 that allow the outer section 18 and the inner section 20 to be separated after molding. Such molding techniques are well-known.
- the outer section 18 and the inner section 20 of the reel may be separately molded.
- the outer section 18 is preferably disposed on a support and the first pliable end 13 of the core 12 is advanced into the outer section 18 , or in other words, past the radially inward extending ridge 28 .
- the inner section 20 is thereafter inserted into the first pliable end 13 of the core 12 , such that, in a relative manner, the first pliable end 13 is advanced past the radially outward extending ridge 38 .
- the second flange 16 may suitably be assembled to the core 12 in the same manner.
- the flanges are constructed of a single, integral member.
- FIGS. 8 through 10 show such an embodiment of the present invention. While use of single piece flanges eliminates some of the binding or pinching phenomena associated with use of separately movable flange sections (e.g. inner section 20 and outer section 18 discussed above), the single piece flange design has other structural advantages inherent to a single piece design. For example, it has been observed that the single piece flange design can perform better in drop tests.
- FIG. 8 shows an exemplary embodiment of a reel 110 according to the present invention which includes a core 112 , a first flange 114 and a second flange 116 .
- the core 112 may suitably have the same structure as the core 12 of FIG. 1. Accordingly, the core 112 has a first pliable end and a second end similar to the first pliable end 13 and second end 15 of FIGS. 1 and 7. Similar to the reel 10 of FIG. 1, the first pliable end 113 has a first cross-sectional shape, which in the exemplary embodiment discussed herein is a circular cross-sectional shape.
- the first flange 114 includes an outer section 118 and an inner section 120 .
- the outer section 118 and the inner section 120 are preferably molded of a plastic or composite material. However, metal and other rigid materials may be used while still retaining many of the advantages of the present invention.
- the outer section 118 and the inner section 120 are formed as integral structures.
- the outer section 118 includes a main retaining member 122 , an outer rim 124 , and an inner rim 126 .
- the retaining member 122 provides the structure to support and retain wound flexible media when it is loaded onto the core 112 .
- the outer rim 124 in the exemplary embodiment described herein constitutes a tapered outer rim 124 .
- the tapered outer rim extends both axially and radially from the outer periphery of the retaining member 122 .
- the tapered outer rim 124 has an intersecting circumference 124 a that intersects the outer periphery of the retaining member 122 and extends radially and axially from that point to an end circumference 124 b. Because it extends both axially and radially, as opposed to substantially only radially like the outer rim 24 of the embodiment of FIGS. 1 - 7 , the tapered outer rim 24 provides additional advantages.
- reels are preferably designed to withstand some degree of mishandling, including the impact from being dropped.
- plastic reel flanges often include reinforcement ribs or the like.
- the retaining member 122 includes a plurality of reinforcement ribs 123 .
- a loaded reel including those that employ reinforced plastic flanges, will fail if dropped from at or above some height limit that may be measured.
- Reels having non-tapered outer rims, such as for example, the reel 10 described above often exhibit failure modes in which a fracture propagates through much or all of the radius of the retaining member 22 to the core 12 . Such a failure mode is particularly undesirable because the payload may be difficult to pay out, or may become damaged during pay out, from a heavily fractured retaining member 22 .
- the tapered outer rim 124 of the reel 110 of FIGS. 8 - 10 provides for a more advantageous failure mode.
- the impact forces are focussed on the end circumference 124 b of the tapered outer rim 124 (or, depending on the tilt of the reel, the end circumference of the tapered outer rim of the second flange 116 .
- a torque force is generated about the moment arm defined by the tapered outer rim.
- flanges with non-tapered outer rims are more likely to absorb impacts closer to the intersection of the outer rim and the retaining member. Such impacts do not generate the same torque forces about the moment armed formed by the outer rim. As a result, the impact forces are not as likely to cause the rim itself to snap off and thus absorb the impact energy. The unabsorbed impact energy is thus more likely to cause fractures that extend well inward from the outer edge of the flange.
- the rim 124 which extends both axially and radially from the flange 114 , assists in reducing the severity of impact failures by reducing the tendency of impact failures to tend to propagate toward the center of the flange. It is noted that it the rim does not necessarily have to have the shape as shown, extending in a linear fashion between the intersecting circumference 124 a and the outer circumference 124 b. Alternative embodiments that extend in a step-wise or arcuate manner may be employed, provided that such embodiments nevertheless employ a rim that extends both axially and radially away from the end of the flange.
- the shape of the inner rim 126 corresponds to the first cross-sectional shape, i.e., the shape of the first pliable end of the core 112 .
- the inner rim 126 has a shape the corresponds to the shape of the first pliable end 113 because, similar to the inner rim 26 of the embodiment of FIGS. 1 - 7 , the inner rim 126 forms a boundary of a channel 113 in which the first pliable end is retained.
- the inner rim 126 includes a radially inward extending ridge 128 defining at least a portion of a periphery corresponding substantially to the first cross-sectional shape.
- the radially inward extending ridge 128 is configured to deformingly engage the first pliable end of the core 112 .
- the first pliable end is deformed around the radially inward extending ridge 128 .
- the radially extending ridge 128 may actually comprise broken segments of a theoretically continuous periphery.
- the cross section of the radially inward extending ridge 128 is preferably tapered, or wedge-shaped, to assist in assembly of the reel 110 .
- the radially inward extending ridge 128 has a structure substantially identical to the radially inward extending ridge 28 of the embodiment of FIGS. 1 - 7 , discussed above.
- the inner section 120 comprises a hub-like structure defined by a main body 132 , and arbor rim 134 , and an outer rim 136 .
- the arbor rim 134 defines an arbor opening 135 in the inner section 120 .
- the arbor opening 135 cooperates with a like arbor opening on the other flange 116 of the reel 110 to allow rotation of the reel 110 about a central axle, not shown.
- the main body 132 in the exemplary embodiment is generally disk-shaped, and may include typical features of a reel hub, such as drive holes 137 , support ribs 139 and/or other features.
- the outer rim 136 includes a radially outward extending ridge 138 defining at least a part of a periphery corresponding substantially to the first cross-sectional shape. The radially outward extending ridge 138 is thus configured to deformingly engage the first pliable end of the core 112 .
- the radially outward extending ridge 138 is preferably wedge-shaped. To this end, the radially outward extending ridge 138 is substantially identical in structure to the radially outward extending ridge 38 of FIGS. 2, 4, 7 .
- the radially inward extending ridge 128 and the radially outward extending ridge 138 deform the core 112 in opposing directions, thereby grasping the core 112 therebetween.
- the core 112 resists movement in the direction A by any number of physical characteristics, including friction.
- the deforming of the core 112 may or may not involve actually penetrating the surface of the core.
- FIGS. 8 through 10 thus provides many of the same advantages as those associated with the embodiment of FIGS. 1 through 7.
- the use of a single, unitary flange design in the reel 110 may reduce manufacturing costs by reducing the number of steps required for assembly.
- the embodiment wherein the flange is a two-part design comprising an inner section and a separate outer section such as shown in FIGS. 1 through 7 may be capable of greater flange retention strength due to the relative movement that is possible between the two sections.
- an exemplary method of manufacturing the reel 110 is provided herebelow.
- the flanges 114 and 116 are first generated.
- the outer section 118 and the inner section 120 of the first flange 114 are injection molded as a single piece.
- the second flange 116 is preferably generated in the same manner.
- the outer section 18 and the inner section 20 of the first flange 14 are molded as a single connected piece.
- metal flanges are used, normal metal forming techniques may be employed.
- the first flange 114 is preferably disposed on a support, not shown. Then, the core 112 is advanced past the radially inward extending ridge 128 and the radially outward extending ridge 138 such that at least one of the radially inward extending ridge 128 and the radially outward extending ridge 138 deformingly engage the first pliable end 113 .
- the second flange 116 may suitably be assembled to the core 112 in the same way.
- FIGS. 11 - 15 show a third embodiment of a flange 214 according to the present invention.
- the flange 214 may readily replace the flange 14 of the reel 10 in FIG. 1.
- the flange 214 has a particularly secure attachment to the core.
- the flange 214 includes a flange body 216 , a plurality of flange fins 218 , and a plug 220 .
- FIG. 11 shows the flange 214 assembled onto the core 12 .
- the flange 214 is shown in a side plan view with hidden features shown as dashed lines.
- the core 12 is shown as a partial section.
- FIG. 12 shows the flange 214 and the core 12 in a view similar to FIG. 11.
- the plug 220 is separated from the flange body 216 and flange fins 218 , and the core 12 is separated from the all of the components of the flange 214 .
- FIG. 13 shows a top plan view of the plug 220 .
- the plurality of flange fins 218 are secured to the flange body 216 and are preferably integrally molded therewith.
- FIGS. 14 and 15 show in further detail a flange fin 218 apart from the remainder of the flange 214 .
- the flange fin 218 includes a rib 222 that is secured on a first end 223 to the flange body 216 (see FIGS. 11 and 12) and extends axially from the flange body 216 .
- the rib 222 further extends radially to a position 224 at which the core 12 will roughly align.
- Radially inward from the position 224 the flange fin 218 in the exemplary embodiment includes an axially inward extension 226 .
- the axially inward extension 226 further defines a wedge-shaped ridge 227 that is configured to engage, and preferably to deformingly engage, an inner surface of the core 12 . (See FIG. 11).
- the axially inward extension 226 further includes side barbs 228 .
- the flange body 216 may suitably include the main features of either of the outer sections 18 and 118 of the embodiments described further above. However, the flange body 216 includes the following differences. While the flange body 216 includes an inner rim 230 having a radially inward extending ridge 232 , the inner rim 230 further includes an annular channel 234 for receiving the deformed end of the core 12 . Moreover, secured to the flange body 216 are a plurality of flange fins 218 as described above. The axially inward extensions 226 of the flange fins 218 , which extend radially inward of the position 224 , align with extension slots 236 in the plug 220 (See FIG. 13).
- the plug 220 has a cross sectional shape with respect to the top view that corresponds to the cross section of the core 12 .
- the plug 220 has a generally circular shape in the embodiment described herein.
- the plug 220 has a diameter that tapers inward from top to bottom.
- the outer diameter at the top of the plug 220 preferably exceeds the inner diameter of the core 12 .
- the portion of the plug 220 near the top thereby forms a radially outward extending ridge 238 that deformingly engages the core 12 . (See FIG. 11).
- the radially outward extending ridge 238 forces the pliable end of the core 12 into the annular channel 234 .
- the plug 220 when the plug 220 is inserted, the plug 220 is retained in position (as shown in FIG. 11) in part by the side barbs 228 .
- the side barbs 228 engage the top of the plug 220 to assist in axially retaining the plug 220 from migrating axially out of the flange 214 , in position as shown in FIG. 11.
- the outer section is the flange body 214 and the inner section may be thought of as the plug 220 and/or the axially inward extensions 226 of the flange fins 218 .
- FIGS. 16 and 17 show yet another alternative of a flange 314 for use in a reel according to the present invention.
- the flange 314 is identical to the flange 214 except that the flange 314 has a support ring 316 that extends in a substantially annular manner between the wedge-shaped ridges 337 of the axially inward extensions 326 of the flange fins 318 .
- the support ring 316 is configured such that insertion of the plug 320 of the flange 314 urges at least a part of the support ring 316 radially outward to engage and/or deformingly engage the inner surface of the core 12 . (See FIG. 16).
- the support ring 316 may actually form a segmented ring defined by a plurality of arc segments.
- the bottom portion 322 of the plug 320 which has an outer diameter greater than the inner diameter of the support ring, causes each of the arc segments to bend radially outward into the inner surface of the core 12 .
- the support ring 316 may form a continuous ring.
- the bottom portion 322 of the plug 320 is non-circular (or more generally, does not coincide completely with the shape of the support ring 316 ), but instead has one or more areas in which the diameter of the bottom portion 322 exceeds the support ring 316 , and one or more compensation areas in which the diameter of the bottom portion 322 is less than the support ring 316 .
- the bottom portion 322 urges certain portions of the support ring 316 radially outward into the inner surface of the core 12 while allowing other portions of the support ring 316 to collapse or cord off to make the necessary slack.
- the bottom portion 322 of the plug 320 is generally the same shape as the support ring 316 and has a greater diameter in order to force the support ring 316 radially outward in all directions.
- the support ring 316 is preferably constructed of a material that has some flexibility/stretchability to it.
- One suitable material would be an olefin material.
- the support ring 316 may include a plurality of bumps, detents or ridges, not shown that engage the inner surface of the core 12 to assist in preventing rotation of the core 12 with respect to the flange 314 .
- the support ring 316 preferably has a wedge-shaped profile such that it acts as an annular extension of the wedge-shaped ridges 337 of the axially inward extensions 326 of the flange fins 318 . In any event, the use of the support ring 316 helps further secure the core 12 to the flange 314 , and further prevents rotation of the core 12 with respect to the flange 314 .
- the inner rim 26 of the outer section 18 of the first flange 14 of FIG. 1 need not necessarily be the radially inner most part of the outer section. It is contemplated that the outer section 18 could include an annular overhang that extends radially inward over portions of the inner section 20 . Likewise, the inner section 20 could conceivably include an overhang that extends radially outward from the outer rim 36 over portions of the outer section 18 .
- staples or other fasteners may be used to reinforce the attachment between the flange and the core according to the present invention.
- Such an embodiment may still realize some of the advantages of the present invention by potentially reducing the number of such fasteners required to achieve the same strength attachment as that provided by a reel that does not incorporate the deformingly engaging ridges of the present invention.
Landscapes
- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
An apparatus for supporting wound flexible media includes a reel core, a first flange and a second flange. The first flange comprises a flange body having a periphery, and further includes an outer rim extending axially outward and radially outward from the periphery with respect to the reel core. The reel core extends between said first flange and said second flange.
Description
- This application is a division of U.S. patent application Ser. No. 09/607,473, filed Jun. 30, 2000, which claims the benefit of U.S. Provisional Patent Application Serial No. 60/142,270, filed Jul. 2, 1999.
- The present invention relates generally to reels for supporting wound flexible media, and in particular, to reels having a core and at least one attachable flange.
- Reels for supporting wound flexible media are employed to both store and facilitate the dispensing of wound media such as rope, wire, chain, and strings of parts. The essential elements of a reel include its core, around which the flexible media is wound, and its flanges, which prevent the wound flexible media from migrating axially off of the core.
- Well-designed reels must combine a high strength to weight ratio with low manufacturing cost. One reel design that has gained popularity for certain applications includes a reel in which the core is constructed of a pressed paperboard material and the flanges are constructed of a composite or plastic material. The use of paper and plastic components, in general, provides a high strength to weight ratio and facilitates the use of relatively straightforward manufacturing techniques. Another lightweight reel design consists of a pressed paperboard core and corrugated paper flanges. While such all-paper reels provide significant economy and light weight, all-paper reels are not suitable for certain medium to heavy duty applications because the paper flanges do not have the strength of plastic, wood, or steel flanges, Accordingly, for medium to heavy duty reel applications, plastic or composite flanges provide an advantageous combination of manufacturability, light weight, and strength.
- Reels having composite or plastic flanges are relatively simple to manufacture. The flanges may be formed using injection molding techniques. The flanges are then attached to the core. While the manufacturing process is relatively simple, the labor involved in the reel assembly process nevertheless contributes significantly to the manufacturing cost of the reel. One source of labor cost arises from the process of securing the flanges to the reel.
- Flanges have been secured to reels using a number of methods. The selection of an attachment mechanism must balance the need for a secure attachment with low manufacturing cost. The use of staples to attach a plastic flange to a paperboard hub is well-known, and is discussed, for example, in U.S. Pat. No. 5,660,354 to Ripplinger. The drawbacks of stapling include the labor involved with the application of the several staples that are necessary to provide a secure attachment between the flanges and the core.
- Other known reel designs include nut and through-bolt assemblies that secure the flanges to the core. These arrangements also require a significant amount of labor in the assembly of the reel, and further incur the material costs of the steel nuts and bolts.
- What is needed, therefore, is a method of and arrangement for attaching a flange to a core in a reel assembly that requires less labor than the prior art arrangements, while still providing a secure attachment.
- The present invention fulfills the above needs, as well as others, by providing a flange that has features that deformingly engage a pliable end of the core to secure the core to the flange. More specifically, the flange includes an inward extending ridge and an outward extending ridge that deformingly engage the pliable end of the core. By deformingly engaging the pliable end using inward and outward extending ridges, the pliable end of the core is deformed in opposing directions, thereby securing the pliable end (and the core) to the flange. The resulting reel may thus be formed by advancing the core such that the pliable end advances between the inward and outward extending ridges. As a result, other securing mechanisms, such as bolts or staples need not be used.
- An exemplary embodiment of the present invention includes a reel for supporting wound flexible media that comprises a core, a first flange and a second flange. The core has a first pliable end and a second end, the first pliable end defining a first cross-sectional shape. The first flange has an outer section and an inner section. The outer section includes an inner rim, the inner rim including a radially inward extending ridge defining at least a portion of a periphery corresponding substantially to the first cross-sectional shape and configured to deformingly engage the first pliable end. The inner section includes an outer rim, the outer rim including a radially outward extending ridge defining at least a portion of a periphery corresponding substantially to the first cross-sectional shape and configured to deformingly engage the first pliable end. The second flange is coupled to the second end.
- An exemplary method according to the present invention includes a method of manufacturing a reel for supporting wound flexible media, the reel including a core having a first pliable end, the first pliable end defining a first cross-sectional shape. The method includes a step of disposing at least a portion of a first flange on a support, the first flange having an outer section and an inner section, the outer section including an inner rim, the inner rim including a radially inward extending ridge having a periphery corresponding substantially to the first cross-sectional shape, and the inner section including an outer rim, the outer rim including a radially outward extending ridge having a periphery corresponding substantially to the first cross-sectional shape. The method further includes the step of advancing the core past the radially outward extending ridge and the radially inward extending ridge such that at least one of the radially outward extending ridge and the radially inward extending ridge deformingly engage the first pliable end. Finally, the method includes the step of securing a second flange to the core.
- Accordingly, by employing a flange having inward and outward extending ridges that deformingly engage a pliable end of a core, the method and apparatus of the present invention forms a secure attachment between the flange and the core without separate fasteners such as bolts or staples. Even if supplemental fasteners are used, the reel of the present invention provides a much more secure attachment through the deforming engagement of the ridges and pliable end. In one embodiment, the inner and outer extending ridges are wedge-shaped such that the ridges are tapered from the inside out in the axial direction. The wedge-shaped ridges facilitate movement of the pliable end of the core into a position between the ridges, yet resist movement of the pliable end of the core back out of that position.
- The above discussed features and advantages, as well as others, will become more readily apparent to those of ordinary skill in the art by reference to the following detailed description and accompanying drawings.
- FIG. 1 shows a perspective view of a first exemplary embodiment of a reel according to the present invention;
- FIG. 2 shows a cutaway cross-sectional view of a flange of the reel of FIG. 1 wherein the flange is removed from the core of the reel;
- FIG. 3 shows a cutaway cross-sectional view of the outer section of the flange of FIG. 2 wherein the outer section is removed from the inner section of the flange;
- FIG. 4 shows a cutaway cross-sectional view of an inner section of the flange of FIG. 2 wherein the inner section is removed from the outer section of the flange;
- FIG. 5 shows a plan view of the outer section of the flange of FIG. 2 wherein the outer section is removed from the inner section of the flange;
- FIG. 6 shows a plan view of the inner section of the flange of FIG. 2 wherein the inner section is removed from the outer section of the flange
- FIG. 7 shows an enlarged, partial, cutaway cross-sectional view of the reel of FIG. 1.
- FIG. 8 shows a perspective view of a second exemplary embodiment of a reel according to the present invention;
- FIG. 9 shows a cutaway cross-sectional view of a flange of the reel of FIG. 2 wherein the flange is removed from the core of the reel;
- FIG. 10 shows a plan view of the flange of FIG. 2;
- FIG. 11 shows a fragmentary plan view of a third exemplary embodiment of a reel according to the present invention, with the core shown in cross section;
- FIG. 12 shows an exploded view of the reel of FIG. 11;
- FIG. 13 shows a top plan view of a plug of the reel of FIG. 11;
- FIG. 14 shows a fragmentary plan view of a flange fin of the reel of FIG. 11;
- FIG. 15 shows a plan view of the flange fin of FIG. 14 taken along view15-15 of FIG. 14;
- FIG. 16 shows a fragmentary plan view of a fourth exemplary embodiment of a reel according to the present invention with the core shown in cross section; and
- FIG. 17 shows an exploded fragmentary view of the reel of FIG. 16.
- FIG. 1 shows an exemplary embodiment of a
reel 10 according to the present invention which includes a core 12, afirst flange 14 and asecond flange 16. Thecore 12 has a first pliable end 13 (see FIG. 7) and asecond end 15. The firstpliable end 13 has a first cross-sectional shape, which in the exemplary embodiment discussed herein is a circular cross-sectional shape. It is noted that the core 12 typically, but not necessarily, has a substantially uniform cross-sectional shape. In the exemplary embodiment described herein, thecore 12 comprises a pressed paperboard tube. - As shown in FIGS. 1 and 2, the
first flange 14 includes an outer section 18 (see also FIG. 3) and an inner section 20 (see also FIG. 4). Theouter section 18 and theinner section 20 are preferably molded of a plastic or composite material. However, metal and other rigid materials may be used while still retaining many of the advantages of the present invention. In the exemplary embodiment of FIGS. 1-7, theouter section 18 and theinner section 20 are separate, distinct structures. - With reference to FIGS. 1, 2, and3, the
outer section 18 includes a main retainingmember 22, anouter rim 24, and aninner rim 26. The retainingmember 22 provides the structure to support and retain wound flexible media when it is loaded onto thecore 12. Theouter rim 24 extends axially from the outer periphery of the main retainingmember 22 and theinner rim 26 extends axially from the inner periphery of the main retainingmember 22. - The shape of the
inner rim 26 corresponds to the first cross-sectional shape, i.e., the shape of the firstpliable end 13 of thecore 12. Theinner rim 26 has a shape that corresponds to the shape of the firstpliable end 13 because, as discussed more fully below, theinner rim 26 forms a boundary of a channel in which the firstpliable end 13 is retained. (See FIG. 7). In the exemplary embodiment described herein, the main retainingmember 22 defines an annulus such that theouter rim 24 and theinner rim 26 are substantially circular. It will be noted however, that the exact shapes of theouter rim 24 and the retainingmember 22 are a matter of design choice. - The
inner rim 26 includes a radially inward extendingridge 28 defining at least a portion of a periphery corresponding substantially to the first cross-sectional shape. As shown in FIG. 7, the radially inward extendingridge 28 is configured to deformingly engage the firstpliable end 13 of thecore 12. In other words, when thereel 10 is assembled, the firstpliable end 13 is deformed around the radially inward extendingridge 28. - The
radially extending ridge 28, while generally defining a periphery corresponding to the first cross-sectional shape, may comprise broken segments of a theoretically continuous periphery, such as is shown in FIG. 3. In particular, drive holes, feeder holes, and/or other design features of theflange 14, which are known to those of ordinary skill in the art, create breaks, such as thebreaks 30, in the periphery defined by the radially inward extendingridge 28.Such breaks 30 typically also interrupt the continuity of theinner rim 26 itself. - The cross section of the radially inward extending
ridge 28 is preferably tapered, or wedge-shaped, to assist in assembly of thereel 10. In particular, as discussed below the wedge shape of the radially inward extendingridge 28 facilitates movement of the core 12 in the direction B, as is needed to assemble thereel 10, and inhibits movement of the core 12 in the direction A, thereby securing the core 12 toflange 14. - To this end, as shown in FIG. 3, the radially inward extending
ridge 28 includes afirst face 40 and asecond face 42. Thefirst face 40 extends from theinner rim 26 at a first angle with respect to the radial plane. Thesecond face 42 extends from theinner rim 26 at a second angle with respect to the radial plane. As shown in FIGS. 3 and 7, thefirst face 40 is axially inward from thesecond face 42 with respect to thecore 12. The first angle is greater than the second angle, thereby defining the wedge-shape of the radially inward extendingridge 28. Thus, thesecond face 42 extends in a direction that has less of an axial component than the direction in which thefirst face 40 extends. As a result, thefirst face 40 provides a more tapered axial path interruption than thesecond face 42. Because the axial path interruption introduced by the first face is more tapered, thecore 12 is more easily advanced in the direction B (from thefirst face 40 to the second face 42), as when thereel 10 is assembled, than in the direction A (from thesecond face 42 to the first face 40), as when thereel 10 would be broken apart. - The
inner section 20 comprises a hub-like structure defined by amain body 32, and arbor rim 34, and anouter rim 36. The arbor rim 34 defines anarbor opening 35 in theinner section 20. Thearbor opening 35 cooperates with a like arbor opening on theother flange 16 of thereel 10 to allow rotation of thereel 10 about a central axle, not shown. - The
main body 32 in the exemplary embodiment is generally disk-shaped, and may include typical features of a reel hub, such as drive holes 37,support ribs 39 and/or other features. In accordance with the present invention, theouter rim 36 includes a radially outward extendingridge 38 defining at least a part of a periphery corresponding substantially to the first cross-sectional shape. The radially outward extendingridge 38 is thus configured to deformingly engage the first pliable end 13 (see FIG. 7). - Similar to the radially inward extending
ridge 28, the radially outward extendingridge 38 is preferably wedge-shaped. To this end, the radially outward extendingridge 38 includes athird face 44 and afourth face 46. Thethird face 44 is axially inward from thefourth face 46 with respect to the core 12 (see FIG. 7). Thethird face 44 extends from theouter rim 36 at a third angle with respect to the radial plane and thefourth face 46 extends from theouter rim 36 at a fourth angle with respect to the radial plane. Similar to the first angle of thefirst face 40 and the second angle of thesecond face 42, the third angle is greater than the fourth angle. Because the third angle is greater than the fourth angle, thecore 12 is more easily advanced in the direction B than in the direction A. As a result, less force is required to assemble thereel 10 than to break apart thereel 10. - As shown in FIG. 7 the radially inward extending
ridge 28 and the radially outward extendingridge 38 deform the core 12 in opposing directions, thereby grasping the core 12 therebetween. Thecore 12 resists movement in the direction A by any number of physical characteristics. - For example, the wedge-shaped nature of the
first face 40 and thesecond face 42, as well as the wedge-shaped nature of thethird face 44 and thefourth face 46 may create in some embodiments a barbing engagement between the core 12 and theridges ridges core 12. In such embodiments theridges flange 14. The deforming engagement of the core 12 in opposing directions by theridges - Another physical characteristic that may help inhibit movement of the core12 in the direction A arises from the configuration of the
outer section 18 and theinner section 20 as separate distinct components. Because theouter section 18 and theinner section 20 are separate components, they are capable of relative axial movement with respect to each other. The primary force that would cause relative axial movement of theouter section 18 and theinner section 20 is the axially outward force of the payload (not shown) against the retaining member. Such force tends to urge theouter section 18 in the direction A relative to theinner section 20. As theouter section 18 is urged in the direction A, theridges pliable end 13. Such clamping and pinching further inhibits axial movement of the core 12 in the direction A. Accordingly, the use of anouter section 18 and aninner section 20 that are capable of relative movement may provide enhanced integrity of the core 12 to theflange 14. - It is noted that while only the
first flange 14 is discussed above in detail, thesecond flange 16 may suitably have the same structure. - Thus, the above described embodiment of the present invention provides an advantage of a secure interconnection between the
flanges pliable end 13 of the core 12 by the opposingridges reel 10. The combination of the provision of a secure attachment with reduced labor requirements desirably reduces the relative cost of thereel 10 as compared to reels of similar strength using staples or the like. - The reduced labor requirements discussed above will become more readily apparent by reference to the method of manufacturing the
reel 10, discussed below. However, it will be appreciated that at least some of the advantages of the present invention may be realized even if other methods of manufacture are implemented. - In any event, to manufacture the
reel 10 in accordance with a first exemplary method according to the present invention, theouter section 18 and theinner section 20 of theflange 14 are formed as two separate pieces. To this end, theouter section 18 and theinner section 20 are preferably molded as a single piece using single mold (not shown). To this end, the mold design may includebreakaway connectors 50 that allow theouter section 18 and theinner section 20 to be separated after molding. Such molding techniques are well-known. Alternatively, theouter section 18 and theinner section 20 of the reel may be separately molded. - In accordance with the method, once the
outer section 18 and theinner section 20 are formed, theouter section 18 is preferably disposed on a support and the firstpliable end 13 of thecore 12 is advanced into theouter section 18, or in other words, past the radially inward extendingridge 28. Theinner section 20 is thereafter inserted into the firstpliable end 13 of the core 12, such that, in a relative manner, the firstpliable end 13 is advanced past the radially outward extendingridge 38. - The
second flange 16 may suitably be assembled to the core 12 in the same manner. - It will be appreciated that those of ordinary skill in the art may modify the above exemplary method such that the
core 12 is secured to thefirst flange 14 and thesecond flange 16 contemporaneously. For example, a hydraulic or robotic fixture may be configured to secure the core 12 to bothflanges - In an alternative embodiment of the present invention, the flanges are constructed of a single, integral member. FIGS. 8 through 10 show such an embodiment of the present invention. While use of single piece flanges eliminates some of the binding or pinching phenomena associated with use of separately movable flange sections (e.g.
inner section 20 andouter section 18 discussed above), the single piece flange design has other structural advantages inherent to a single piece design. For example, it has been observed that the single piece flange design can perform better in drop tests. - FIG. 8 shows an exemplary embodiment of a
reel 110 according to the present invention which includes acore 112, afirst flange 114 and asecond flange 116. Thecore 112 may suitably have the same structure as thecore 12 of FIG. 1. Accordingly, thecore 112 has a first pliable end and a second end similar to the firstpliable end 13 andsecond end 15 of FIGS. 1 and 7. Similar to thereel 10 of FIG. 1, the firstpliable end 113 has a first cross-sectional shape, which in the exemplary embodiment discussed herein is a circular cross-sectional shape. - Referring generally to FIGS.8-10, the
first flange 114 includes anouter section 118 and aninner section 120. Theouter section 118 and theinner section 120 are preferably molded of a plastic or composite material. However, metal and other rigid materials may be used while still retaining many of the advantages of the present invention. In the exemplary embodiment of FIGS. 8-10, theouter section 118 and theinner section 120 are formed as integral structures. - The
outer section 118 includes a main retainingmember 122, anouter rim 124, and aninner rim 126. The retainingmember 122 provides the structure to support and retain wound flexible media when it is loaded onto thecore 112. Theouter rim 124 in the exemplary embodiment described herein constitutes a taperedouter rim 124. The tapered outer rim extends both axially and radially from the outer periphery of the retainingmember 122. In particular, the taperedouter rim 124 has anintersecting circumference 124 a that intersects the outer periphery of the retainingmember 122 and extends radially and axially from that point to anend circumference 124 b. Because it extends both axially and radially, as opposed to substantially only radially like theouter rim 24 of the embodiment of FIGS. 1-7, the taperedouter rim 24 provides additional advantages. - In particular, reels are preferably designed to withstand some degree of mishandling, including the impact from being dropped. To this end, plastic reel flanges often include reinforcement ribs or the like. For example, the retaining
member 122 includes a plurality ofreinforcement ribs 123. However, a loaded reel, including those that employ reinforced plastic flanges, will fail if dropped from at or above some height limit that may be measured. Reels having non-tapered outer rims, such as for example, thereel 10 described above, often exhibit failure modes in which a fracture propagates through much or all of the radius of the retainingmember 22 to thecore 12. Such a failure mode is particularly undesirable because the payload may be difficult to pay out, or may become damaged during pay out, from a heavily fractured retainingmember 22. - The tapered
outer rim 124 of thereel 110 of FIGS. 8-10, however, provides for a more advantageous failure mode. In particular, if thereel 110 is dropped, then the impact forces are focussed on theend circumference 124 b of the tapered outer rim 124 (or, depending on the tilt of the reel, the end circumference of the tapered outer rim of thesecond flange 116. Because the impact forces are focussed on theend circumference 124 b, a torque force is generated about the moment arm defined by the tapered outer rim. These torque forces tend to cause theflange 114 to fail at theintersecting circumference 124 a. In other words, part of the taperedouter rim 124 tends to snap off. It has been observed that failures at theintersecting circumference 124 a due to the torque forces on theend circumference 124 b tend to remain isolated near the outer circumference of theflange 114. In other words, fractures resulting from such failures have less of a tendency to propagate toward the center of theflange 114. The failures have less of a tendency to propagate because when the taperedouter rim 124 snaps off, it absorbs much of the impact energy. - By contrast, flanges with non-tapered outer rims are more likely to absorb impacts closer to the intersection of the outer rim and the retaining member. Such impacts do not generate the same torque forces about the moment armed formed by the outer rim. As a result, the impact forces are not as likely to cause the rim itself to snap off and thus absorb the impact energy. The unabsorbed impact energy is thus more likely to cause fractures that extend well inward from the outer edge of the flange.
- Accordingly, the
rim 124 according to the present invention, which extends both axially and radially from theflange 114, assists in reducing the severity of impact failures by reducing the tendency of impact failures to tend to propagate toward the center of the flange. It is noted that it the rim does not necessarily have to have the shape as shown, extending in a linear fashion between the intersectingcircumference 124 a and theouter circumference 124 b. Alternative embodiments that extend in a step-wise or arcuate manner may be employed, provided that such embodiments nevertheless employ a rim that extends both axially and radially away from the end of the flange. - Referring again to the general description of the
flange 114, the shape of theinner rim 126 corresponds to the first cross-sectional shape, i.e., the shape of the first pliable end of thecore 112. Theinner rim 126 has a shape the corresponds to the shape of the firstpliable end 113 because, similar to theinner rim 26 of the embodiment of FIGS. 1-7, theinner rim 126 forms a boundary of achannel 113 in which the first pliable end is retained. - The
inner rim 126 includes a radially inward extendingridge 128 defining at least a portion of a periphery corresponding substantially to the first cross-sectional shape. As with the embodiment of FIGS. 1-7, the radially inward extendingridge 128 is configured to deformingly engage the first pliable end of thecore 112. In other words, when thereel 110 is assembled, the first pliable end is deformed around the radially inward extendingridge 128. It is noted that as with theridge 28, theradially extending ridge 128 may actually comprise broken segments of a theoretically continuous periphery. - The cross section of the radially inward extending
ridge 128 is preferably tapered, or wedge-shaped, to assist in assembly of thereel 110. To this end, as shown in FIG. 9, the radially inward extendingridge 128 has a structure substantially identical to the radially inward extendingridge 28 of the embodiment of FIGS. 1-7, discussed above. - The
inner section 120 comprises a hub-like structure defined by amain body 132, andarbor rim 134, and anouter rim 136. Thearbor rim 134 defines anarbor opening 135 in theinner section 120. Thearbor opening 135 cooperates with a like arbor opening on theother flange 116 of thereel 110 to allow rotation of thereel 110 about a central axle, not shown. - The
main body 132 in the exemplary embodiment is generally disk-shaped, and may include typical features of a reel hub, such as drive holes 137,support ribs 139 and/or other features. In accordance with the present invention, theouter rim 136 includes a radially outward extendingridge 138 defining at least a part of a periphery corresponding substantially to the first cross-sectional shape. The radially outward extendingridge 138 is thus configured to deformingly engage the first pliable end of thecore 112. - Similar to the radially inward extending
ridge 128, the radially outward extendingridge 138 is preferably wedge-shaped. To this end, the radially outward extendingridge 138 is substantially identical in structure to the radially outward extendingridge 38 of FIGS. 2, 4, 7. - In general, the radially inward extending
ridge 128 and the radially outward extendingridge 138 deform thecore 112 in opposing directions, thereby grasping thecore 112 therebetween. Thecore 112 resists movement in the direction A by any number of physical characteristics, including friction. The deforming of thecore 112 may or may not involve actually penetrating the surface of the core. - The embodiment of FIGS. 8 through 10 thus provides many of the same advantages as those associated with the embodiment of FIGS. 1 through 7. However, the use of a single, unitary flange design in the
reel 110 may reduce manufacturing costs by reducing the number of steps required for assembly. However, the embodiment wherein the flange is a two-part design comprising an inner section and a separate outer section such as shown in FIGS. 1 through 7 may be capable of greater flange retention strength due to the relative movement that is possible between the two sections. - In any event, an exemplary method of manufacturing the
reel 110 is provided herebelow. Theflanges outer section 118 and theinner section 120 of thefirst flange 114 are injection molded as a single piece. Thesecond flange 116 is preferably generated in the same manner. In the exemplary method described herein, theouter section 18 and theinner section 20 of thefirst flange 14 are molded as a single connected piece. Alternatively, if metal flanges are used, normal metal forming techniques may be employed. - After the
first flange 114 is generated, thefirst flange 114 is preferably disposed on a support, not shown. Then, thecore 112 is advanced past the radially inward extendingridge 128 and the radially outward extendingridge 138 such that at least one of the radially inward extendingridge 128 and the radially outward extendingridge 138 deformingly engage the firstpliable end 113. Thesecond flange 116 may suitably be assembled to thecore 112 in the same way. - FIGS.11-15 show a third embodiment of a
flange 214 according to the present invention. Theflange 214 may readily replace theflange 14 of thereel 10 in FIG. 1. Theflange 214 has a particularly secure attachment to the core. As shown in FIGS. 11, 12, and 13, theflange 214 includes aflange body 216, a plurality offlange fins 218, and aplug 220. - In particular, FIG. 11 shows the
flange 214 assembled onto thecore 12. Theflange 214 is shown in a side plan view with hidden features shown as dashed lines. Thecore 12 is shown as a partial section. FIG. 12 shows theflange 214 and the core 12 in a view similar to FIG. 11. However, in FIG. 12, theplug 220 is separated from theflange body 216 andflange fins 218, and thecore 12 is separated from the all of the components of theflange 214. FIG. 13 shows a top plan view of theplug 220. - The plurality of
flange fins 218 are secured to theflange body 216 and are preferably integrally molded therewith. FIGS. 14 and 15 show in further detail aflange fin 218 apart from the remainder of theflange 214. Theflange fin 218 includes arib 222 that is secured on afirst end 223 to the flange body 216 (see FIGS. 11 and 12) and extends axially from theflange body 216. Therib 222 further extends radially to aposition 224 at which thecore 12 will roughly align. Radially inward from theposition 224, theflange fin 218 in the exemplary embodiment includes an axiallyinward extension 226. The axiallyinward extension 226 further defines a wedge-shapedridge 227 that is configured to engage, and preferably to deformingly engage, an inner surface of thecore 12. (See FIG. 11). The axiallyinward extension 226 further includesside barbs 228. - The
flange body 216 may suitably include the main features of either of theouter sections flange body 216 includes the following differences. While theflange body 216 includes aninner rim 230 having a radially inward extendingridge 232, theinner rim 230 further includes anannular channel 234 for receiving the deformed end of thecore 12. Moreover, secured to theflange body 216 are a plurality offlange fins 218 as described above. The axiallyinward extensions 226 of theflange fins 218, which extend radially inward of theposition 224, align withextension slots 236 in the plug 220 (See FIG. 13). - The
plug 220 has a cross sectional shape with respect to the top view that corresponds to the cross section of thecore 12. Thus, for example, theplug 220 has a generally circular shape in the embodiment described herein. However, theplug 220 has a diameter that tapers inward from top to bottom. The outer diameter at the top of theplug 220 preferably exceeds the inner diameter of thecore 12. The portion of theplug 220 near the top thereby forms a radially outward extendingridge 238 that deformingly engages thecore 12. (See FIG. 11). In fact, when theplug 220 is inserted, the radially outward extendingridge 238 forces the pliable end of the core 12 into theannular channel 234. - Moreover, when the
plug 220 is inserted, theplug 220 is retained in position (as shown in FIG. 11) in part by theside barbs 228. In particular, theside barbs 228 engage the top of theplug 220 to assist in axially retaining theplug 220 from migrating axially out of theflange 214, in position as shown in FIG. 11. - It is noted that in the above embodiment, the outer section is the
flange body 214 and the inner section may be thought of as theplug 220 and/or the axiallyinward extensions 226 of theflange fins 218. - FIGS. 16 and 17 show yet another alternative of a
flange 314 for use in a reel according to the present invention. Theflange 314 is identical to theflange 214 except that theflange 314 has asupport ring 316 that extends in a substantially annular manner between the wedge-shapedridges 337 of the axiallyinward extensions 326 of the flange fins 318. Preferably, thesupport ring 316 is configured such that insertion of theplug 320 of theflange 314 urges at least a part of thesupport ring 316 radially outward to engage and/or deformingly engage the inner surface of thecore 12. (See FIG. 16). - To allow the
support ring 316 to expand radially outward, various implementations may be used. First, thesupport ring 316 may actually form a segmented ring defined by a plurality of arc segments. In such a case, thebottom portion 322 of theplug 320, which has an outer diameter greater than the inner diameter of the support ring, causes each of the arc segments to bend radially outward into the inner surface of thecore 12. In other implementations, thesupport ring 316 may form a continuous ring. For example, in one implementation, thebottom portion 322 of theplug 320 is non-circular (or more generally, does not coincide completely with the shape of the support ring 316), but instead has one or more areas in which the diameter of thebottom portion 322 exceeds thesupport ring 316, and one or more compensation areas in which the diameter of thebottom portion 322 is less than thesupport ring 316. Thus, when theplug 320 is inserted, thebottom portion 322 urges certain portions of thesupport ring 316 radially outward into the inner surface of the core 12 while allowing other portions of thesupport ring 316 to collapse or cord off to make the necessary slack. In yet another implementation, thebottom portion 322 of theplug 320 is generally the same shape as thesupport ring 316 and has a greater diameter in order to force thesupport ring 316 radially outward in all directions. To allow thesupport ring 316 to move radially outward in all directions, thesupport ring 316 is preferably constructed of a material that has some flexibility/stretchability to it. One suitable material would be an olefin material. - The
support ring 316 may include a plurality of bumps, detents or ridges, not shown that engage the inner surface of the core 12 to assist in preventing rotation of the core 12 with respect to theflange 314. Thesupport ring 316 preferably has a wedge-shaped profile such that it acts as an annular extension of the wedge-shapedridges 337 of the axiallyinward extensions 326 of the flange fins 318. In any event, the use of thesupport ring 316 helps further secure the core 12 to theflange 314, and further prevents rotation of the core 12 with respect to theflange 314. - It will be appreciated that the above described embodiments are merely exemplary, and that those of ordinary skill in the art may readily devise their own implementations that incorporate the principles of the present invention and fall within the spirit and scope thereof. For example, the shapes and signs of the outer section and inner section of the flange according to the present invention may readily be modified without departing from the spirit of the invention, as long as the inner and outer sections feature opposing ridges that deformingly engage a pliable end of a core.
- Moreover, it is noted that the
inner rim 26 of theouter section 18 of thefirst flange 14 of FIG. 1 need not necessarily be the radially inner most part of the outer section. It is contemplated that theouter section 18 could include an annular overhang that extends radially inward over portions of theinner section 20. Likewise, theinner section 20 could conceivably include an overhang that extends radially outward from theouter rim 36 over portions of theouter section 18. - It is also possible that for certain heavy duty applications, staples or other fasteners may be used to reinforce the attachment between the flange and the core according to the present invention. Such an embodiment may still realize some of the advantages of the present invention by potentially reducing the number of such fasteners required to achieve the same strength attachment as that provided by a reel that does not incorporate the deformingly engaging ridges of the present invention.
Claims (20)
1. An apparatus for supporting wound flexible media comprising:
a reel core;
a first flange comprising a flange body having a periphery, the first flange further including an outer rim extending axially outward and radially outward from the periphery with respect to the reel core;
a second flange; and
wherein the reel core extends between said first flange and said second flange.
2 The apparatus of claim 1 wherein said second flange comprises a second flange body having a second periphery, the second flange further including a second outer rim extending axially outward and radially outward from the second periphery with respect to the reel core.
3. The apparatus of claim 1 wherein said first flange is constructed of plastic.
4. The apparatus of claim 1 wherein the flange body includes a load bearing portion of the first flange.
5. The apparatus of claim 4 wherein the periphery of the flange body further comprises a periphery of the load bearing portion.
6. The apparatus of claim 1 wherein said first flange and said second flange are generally disk shaped.
7. The apparatus of claim 1 wherein said reel core is cylindrically shaped.
8. The apparatus of claim 1 wherein said reel core is removably secured to said first flange and said reel core is removably secured to said second flange.
9. The apparatus of claim 1 wherein
the reel core includes a first pliable end and a second end, the first pliable end defining a first cross-sectional shape;
the first flange includes an outer section and an inner section, the outer section including an inner rim, the inner rim including a radially inward extending ridge defining at least a portion of a first periphery corresponding substantially to the first cross-sectional shape and configured to deformingly engage the first pliable end, and the inner section including an outer rim, the outer rim including a radially outward extending ridge defining at least a portion of a second periphery corresponding substantially to the first cross-sectional shape and configured to deformingly engage the first pliable end.
10. A flange for use in a reel having first and second flanges attached to a reel core, the flange comprising
a load bearing section;
an outer rim operably coupled to a portion of the flange radially outward of the load bearing section, the outer rim including an intersecting circumference adjacent the portion of the flange and end circumference, the outer rim extending radially outward and axially outward from the intersecting circumference to the end circumference.
11. The flange of claim 10 wherein intersecting circumference defines an outer periphery of the load bearing section.
12. The flange of claim 10 wherein the outer rim extends radially outward and axially outward from the intersecting circumference to the end circumference in a linear manner.
13. The flange of claim 10 wherein said flange is constructed of plastic.
14. The flange of claim 10 wherein said first flange and said second flange are generally disk shaped.
15. The flange of claim 10 wherein said flange includes an outer section and an inner section, the outer section including an inner rim, the inner rim including a radially inward extending ridge defining at least a portion of a first periphery corresponding substantially to the first cross-sectional shape and configured to deformingly engage a first pliable end of a reel core, and the inner section including an outer rim, the outer rim including a radially outward extending ridge defining at least a portion of a second periphery corresponding substantially to the first cross-sectional shape and configured to deformingly engage the first pliable end.
16. The flange of claim 10 wherein the load bearing section includes a plurality of radially extending ribs.
17. A flange for use in a reel having first and second flanges attached to a reel core, the flange comprising
a load bearing section; and
an outer rim operably extending radially outward and axially outward from the load bearing section.
18. The flange of claim 17 wherein the flange is constructed of plastic.
19. The flange of claim 17 wherein the load bearing section and the outer rim are integrally molded.
20. The flange of claim 17 wherein the load bearing section includes a plurality of radially extending ribs.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/164,884 US20030197087A9 (en) | 1999-07-02 | 2002-06-03 | Reel flange having radially outward and axially outward extending outer rim |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14227099P | 1999-07-02 | 1999-07-02 | |
US09/607,473 US6398154B1 (en) | 1999-07-02 | 2000-06-30 | Reel having deforming engagement of core to flange |
US10/164,884 US20030197087A9 (en) | 1999-07-02 | 2002-06-03 | Reel flange having radially outward and axially outward extending outer rim |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/607,473 Division US6398154B1 (en) | 1999-07-02 | 2000-06-30 | Reel having deforming engagement of core to flange |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020148925A1 US20020148925A1 (en) | 2002-10-17 |
US20030197087A9 true US20030197087A9 (en) | 2003-10-23 |
Family
ID=26839928
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/607,473 Expired - Lifetime US6398154B1 (en) | 1999-07-02 | 2000-06-30 | Reel having deforming engagement of core to flange |
US10/164,884 Abandoned US20030197087A9 (en) | 1999-07-02 | 2002-06-03 | Reel flange having radially outward and axially outward extending outer rim |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/607,473 Expired - Lifetime US6398154B1 (en) | 1999-07-02 | 2000-06-30 | Reel having deforming engagement of core to flange |
Country Status (1)
Country | Link |
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US (2) | US6398154B1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US20060086863A1 (en) * | 2004-10-22 | 2006-04-27 | Couchey Brian P | Shipping spool |
US20090261195A1 (en) * | 2006-10-02 | 2009-10-22 | David Chiorgno | Breakdown reel |
US20100252672A1 (en) * | 2009-04-02 | 2010-10-07 | Sonoco Development Inc. | Spool with drive feature |
US20110108659A1 (en) * | 2009-11-06 | 2011-05-12 | Bill Ito | Spool assembly |
US8272591B2 (en) | 2011-01-24 | 2012-09-25 | Sonoco, Inc. | Breakdown spool |
US9284103B2 (en) | 2013-11-05 | 2016-03-15 | Sonoco Development, Inc. | End support for wound rolls |
US10106367B2 (en) * | 2016-07-19 | 2018-10-23 | Axjo Plastic Ag | Reinforced cable spool |
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US6598825B2 (en) * | 1998-02-13 | 2003-07-29 | C. Robert Ripplinger | Simultaneous-access surfaces for reel-flange fasteners |
US20080061187A1 (en) * | 2006-09-07 | 2008-03-13 | Couchey Brian P | Reel assembly |
WO2008042097A2 (en) * | 2006-10-02 | 2008-04-10 | Pittsfield Plastics Engineering, Inc. | Breakdown reel |
WO2009108627A1 (en) * | 2008-02-25 | 2009-09-03 | Sperian Fall Protection, Inc. | Energy absorbing lifeline systems |
US20090218436A1 (en) * | 2008-02-28 | 2009-09-03 | Andre Charron | Spool |
AU2009253472B2 (en) * | 2008-05-29 | 2014-08-07 | Commscope Technologies Llc | Device for dispensing a telecommunication cable from a reel |
CA2779236A1 (en) * | 2009-10-29 | 2011-05-19 | Sonoco Development, Inc. | Modular reel structure |
US8985541B2 (en) * | 2010-06-11 | 2015-03-24 | Sennco Solutions | Cable roller, system and/or method for extending and/or retracting a coiled cable |
US9617127B2 (en) * | 2010-10-28 | 2017-04-11 | Schlumberger Technology Corporation | Drum assembly and method of assembling the drum assembly |
AU2010257221B2 (en) * | 2010-12-15 | 2016-10-06 | Commscope Technologies Llc | Assembly for dispensing cable |
DE102011009091A1 (en) * | 2011-01-21 | 2012-07-26 | Maschinenfabrik Niehoff Gmbh & Co Kg | Coil for receiving winding material and coil subsystem |
US20140091170A1 (en) * | 2012-09-07 | 2014-04-03 | Michael F. Gaudio | Device for repairing wire spools |
HUE047921T2 (en) | 2016-07-19 | 2020-05-28 | Axjo Plastic Ab | Plastic cap for a cable spool |
US20190152738A1 (en) * | 2017-11-19 | 2019-05-23 | Benjamin Scicluna | Spool Repair |
FR3098209B1 (en) * | 2019-07-01 | 2021-06-04 | Conductix Wampfler France | COIL FOR WINDING AND UNWINDING A LINK |
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DE3403382A1 (en) | 1984-02-01 | 1985-08-08 | Industriewerk Nachf. Seifert & Co Kg, 8632 Neustadt | REEL FOR WINDABLE GOODS LIKE ROPES, CABLES AND THE LIKE |
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DE9206906U1 (en) * | 1992-05-21 | 1992-07-30 | Franz Filthaut Kg, 5750 Menden | Plastic spool for winding ribbon or thread-like goods |
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US5871171A (en) | 1994-09-23 | 1999-02-16 | Terry Kenney | Molded product of recycled plastic and rubber |
IT237643Y1 (en) * | 1997-07-07 | 2000-09-13 | Claber Spa | DRUM FOR WINDING TROLLEYS FOR FLEXIBLE HOSES FOR IRRIGATION |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US20060086863A1 (en) * | 2004-10-22 | 2006-04-27 | Couchey Brian P | Shipping spool |
US7222818B2 (en) | 2004-10-22 | 2007-05-29 | Sonoco Development, Inc. | Shipping spool |
US20090261195A1 (en) * | 2006-10-02 | 2009-10-22 | David Chiorgno | Breakdown reel |
US7874511B2 (en) * | 2006-10-02 | 2011-01-25 | Pittsfield Plastics Engineering, Inc. | Breakdown reel |
US20100252672A1 (en) * | 2009-04-02 | 2010-10-07 | Sonoco Development Inc. | Spool with drive feature |
US20110108659A1 (en) * | 2009-11-06 | 2011-05-12 | Bill Ito | Spool assembly |
US8328127B2 (en) * | 2009-11-06 | 2012-12-11 | Bill Ito | Spool assembly |
US8272591B2 (en) | 2011-01-24 | 2012-09-25 | Sonoco, Inc. | Breakdown spool |
US9284103B2 (en) | 2013-11-05 | 2016-03-15 | Sonoco Development, Inc. | End support for wound rolls |
US10106367B2 (en) * | 2016-07-19 | 2018-10-23 | Axjo Plastic Ag | Reinforced cable spool |
Also Published As
Publication number | Publication date |
---|---|
US20020148925A1 (en) | 2002-10-17 |
US6398154B1 (en) | 2002-06-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: VANDOR CORPORATION, INDIANA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:COX, GARY L.;ELDER, JACK E.;EVERSOLE, CHAD L.;AND OTHERS;REEL/FRAME:013001/0173;SIGNING DATES FROM 20001211 TO 20001214 Owner name: VANDOR CORPORATION, INDIANA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:COX, GARY L.;ELDER, JACK E.;EVERSOLE, CHAD L.;AND OTHERS;SIGNING DATES FROM 20001211 TO 20001214;REEL/FRAME:013001/0173 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |