US20040047705A1 - Cage-nut assembly - Google Patents
Cage-nut assembly Download PDFInfo
- Publication number
- US20040047705A1 US20040047705A1 US10/657,872 US65787203A US2004047705A1 US 20040047705 A1 US20040047705 A1 US 20040047705A1 US 65787203 A US65787203 A US 65787203A US 2004047705 A1 US2004047705 A1 US 2004047705A1
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- Prior art keywords
- nut
- cage
- base
- end portion
- assembly
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- Abandoned
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- 230000000903 blocking effect Effects 0.000 claims abstract description 24
- 238000003466 welding Methods 0.000 claims description 12
- 239000004809 Teflon Substances 0.000 claims description 9
- 229920006362 Teflon® Polymers 0.000 claims description 9
- 238000005452 bending Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/044—Nut cages
Definitions
- the present invention relates to caged female threaded fasteners which provide high torsional strength while allowing removal of the fasteners for servicing.
- threaded fasteners In most cases, the subassemblies of the automobile will be secured to the auto body by threaded fasteners.
- threaded fasteners often presents difficulties in final assembly.
- one of the matching threaded fasteners for example, a female fastener
- the door pillar in a modern automobile of unibody construction very often is a hollow metal part which may be completely enclosed after manufacture of the vehicle body.
- Position adjustment is provided by using a female fastener called a “cage-nut”, which is usually a nut encaged in a structure that is attached to the inside of the door pillar.
- the nut is provided with a range of movement within the encaging structure so that when the door is assembled to the body, the alignment of the door and the body can be adjusted until they meet manufacturing standards.
- Cage-nuts are also frequently used in situations where the nut is not completely enclosed, such as on the frame of the vehicle. In these situations, the use of a cage-nut welded onto the body prior to final assembly reduces the time needed for final assembly of the automobile.
- the present invention overcomes the above referenced shortcomings of prior art cage-nut assemblies by providing a cage-nut assembly including a Teflon-coated nut and a cage structure which provides high torsional strength while providing a structurally weak portion which allows bending of the cage structure for removal of the nut for servicing.
- a flat base is provided with opposing strap portions which wrap around opposing ends of an oblong (i.e., longer than wide, including diamond shape or other shape providing a portion for containment and torsional resistance), Teflon-coated nut.
- the flat base forms an enclosed aperture for receiving a bolt.
- the straps are bendable away from the body to facilitate nut removal.
- the straps are configured to provide high torsional strength. Small tabs extend from the base to space the nut away from the base to prevent paint-welding of the nut to the base, and are bendable to allow the nut member to seat when torqued down.
- standoff legs support a flat base with an enclosed aperture formed therethrough for receiving a bolt.
- a rectangular Teflon-coated nut is positioned within the cage.
- the legs include small, bendable tabs which hold the nut in position and are bendable to allow the nut member to seat when torqued down (when a bending-force of approximately 65 lbs. is applied to the legs).
- One of the tabs prevents the nut from sliding out of the cage, and is bendable to allow removal and servicing of the nut (when a bending-force of approximately 10 to 20 lbs. is applied).
- the cage-nut assembly includes a nut positioned within a cage structure, the cage structure being configured to provide high torsional strength to prevent rotation of the nut.
- the cage structure provides sufficiently high torsional strength that the first failure would be that of the weld holding the cage structure against a workpiece when a significant torque is applied to the nut (preferably at approximately 190 Nm).
- the cage structure has a flat base and an at least partially open end portion.
- the cage structure includes a relatively structurally weak blocking member preventing the nut from exiting the cage structure through the end portion. The structurally weak blocking member is bendable when less than approximately 20 lbs.
- the flat base includes a bolt-receiving aperture which is formed coextensively with the at least partially open end portion.
- the blocking member comprises first and second curved tangs formed coplanar with the flat base.
- the nut includes a protruding tubular portion which extends through the bolt-receiving aperture. Standoff legs support the flat base and include small projections to facilitate projection welding.
- the flat base may be positioned flat against a workpiece to which the nut is being attached, or may be spaced from the workpiece by the above-described standoff legs.
- an object of the invention is to provide an improved cage-nut assembly in which the nut is removable from the cage for servicing.
- FIG. 1 shows a perspective view of a cage structure in accordance with a first embodiment of the invention
- FIG. 2 shows a plan view of the cage structure of FIG. 1;
- FIG. 3 shows a side view of the cage structure of FIG. 2
- FIG. 4 shows a cross-sectional view taken at line A-A of FIG. 2;
- FIG. 5 shows a plan view of a nut for use with the embodiment of FIG. 1;
- FIG. 6 shows a side view of the nut of FIG. 5;
- FIG. 7 shows a reverse side view of the nut of FIG. 5;
- FIG. 8 shows a perspective view of a cage-nut assembly in accordance with the embodiment of FIG. 1;
- FIG. 9 shows a perspective view of a cage-nut assembly in a slightly modified embodiment
- FIG. 10 shows the cage-nut assembly of FIG. 9 with the nut being removed from the cage structure
- FIG. 11 shows an underside perspective view of a cage-nut assembly in accordance with an alternative embodiment of the invention
- FIG. 12 shows a top perspective view of the cage-nut assembly of FIG. 11;
- FIG. 13 shows a top plan view of the cage-nut assembly of FIG. 11;
- FIG. 14 shows a side view of the cage-nut assembly of FIG. 13 with the bolt and vehicle body component
- FIG. 15 a shows a cross-sectional view taken at line 15 a - 15 a of FIG. 14;
- FIG. 15 b shows a cross-sectional view of the cage-nut assembly of FIG. 15 a , with the bolt torqued down and the nut seated;
- FIG. 16 shows an enlarged view of detail 16 from FIG. 14;
- FIG. 17 shows a plan view of the nut shown in FIG. 11;
- FIG. 18 shows a side view of the nut of FIG. 17
- FIG. 19 shows a perspective view of a cage-nut assembly in accordance with a third embodiment of the invention.
- FIG. 20 shows a plan view of a nut corresponding with the embodiment of FIG. 19;
- FIG. 21 shows a sectional view taken at line 21 - 21 of FIG. 20;
- FIG. 22 shows a plan view of a slightly modified embodiment of a cage structure in accordance with the invention.
- FIG. 23 shows a side view of the cage structure of FIG. 22.
- FIG. 24 shows an end view of the cage structure of FIG. 22.
- FIGS. 1 - 8 a first embodiment of a cage-nut assembly 10 is shown in accordance with the present invention.
- the cage-nut assembly 10 includes a cage structure 12 , shown in FIGS. 1 - 4 , and a Teflon-coated nut 14 , shown in FIGS. 5 - 7 , which cooperate to form the cage-nut assembly 10 , shown in FIG. 8.
- the cage structure 12 includes a flat base 16 having a fully enclosed aperture 18 formed therethrough for receiving a bolt (not shown).
- Standoff tabs 20 , 22 are angled slightly upwardly with respect to the flat base 16 to hold the nut 14 away from the base 16 to prevent the nut from paint-welding to the base 16 (i.e. sticking to the base by dried paint).
- the tabs 20 , 22 are bendable to allow the nut to seat when torqued down.
- the base 16 is preferably a stamped steel component, and includes integral straps 24 , 26 , which form openings 28 , 30 , respectively, for receiving opposing ends 32 , 34 of the oblong nut 14 .
- the straps 24 , 26 are preferably stamped with the base 16 to form the openings 28 , 30 .
- the nut 14 is generally diamond-shaped and includes a central aperture 36 which is threaded to receive the bolt.
- the flat base 16 would be welded to a vehicle frame or other structural component, and the bolt would be inserted through an underside thereof, as viewed in this Figure.
- the openings 28 , 30 in the straps 24 , 26 , respectively, are larger than the respective opposing ends 32 , 34 of the nut 14 , thereby allowing the nut 14 to float for alignment with the bolt.
- the engagement of the opposing ends 32 , 34 of the nut 14 with the straps 24 , 26 , respectively, provides very high torsional strength against rotation of the nut 14 during assembly.
- the opposing ends 38 , 40 of the flat base 12 may be bent upward for servicing the nut 14 .
- the flat base 12 would bend in the structurally weakest areas 42 , 44 .
- the opposing ends 38 , 40 of the cage structure 12 are partially open, and the straps 24 , 26 are operative as blocking members which prevent the nut 14 from sliding through the partially open opposing ends 38 , 40 .
- the blocking members are relatively structurally weak in a direction orthogonal to the torsional rotation direction of the nut, such that the blocking members may be pried up to allow the nut to slide through one of the opposing ends 38 , 40 .
- orthogonal to the torsional rotation direction of the nut is intended to mean perpendicular to an arc swept out by a distal end of the rotating nut, and includes perpendicular directions which are in the plane of the arc or perpendicular to the plane of the arc.
- FIGS. 9 and 10 show a slightly modified embodiment, wherein the opposing ends 38 ′, 40 ′ are substantially enclosed.
- the ends 38 ′, 40 ′ are only open at an underside thereof, as viewed in FIGS. 9 and 10.
- FIG. 10 illustrates the end 40 ′ having been pried upward with respect to the flat base 12 about the structurally weak portion 44 for removal of the nut 14 for servicing.
- FIGS. 11 - 18 a further embodiment of the invention is shown.
- These figures show a cage-nut assembly 60 , including the cage structure 62 , which is preferably a stamped steel component, and a Teflon-coated rectangular nut 64 .
- the cage structure 62 includes standoff legs 66 , 68 , 70 , 72 , 74 which are welded to the vehicle body component 75 by the conical projections 76 , 78 , 80 , such as by projection welding or resistance welding.
- the standoff legs 66 , 68 , 70 , 72 , 74 support a flat base 82 which has an enclosed aperture 84 formed therethrough for receiving the bolt 85 which is inserted from the vehicle body side of the cage structure 62 , as shown in FIGS. 14, 15 a and 15 b , and protrudes through the lip 86 surrounding the threaded aperture 88 of the nut 64 .
- the lip 86 also protrudes through the enclosed aperture 84 of the base 82 , as shown in FIGS. 12 and 15 a.
- This cage structure 62 in combination with the rectangular nut 64 provides substantial torsional strength for supporting the nut 64 against rotation when a bolt is driven into the nut 64 (preferably the weld fails before the cage structure at around 190 Nm).
- vertical retainer tabs 90 , 92 , 94 , 96 are provided for holding the nut 64 against the base 82 .
- the cage structure 62 is open at the longitudinal end between legs 66 , 68 such that movement of the bolt 64 therethrough is prevented only by the lateral retention tab 100 . Accordingly, if a bolt is cross-threaded into the nut 64 , the tabs 90 , 92 , 94 , 96 may be bent downward simply by pulling the nut 64 away from the base 82 by pulling on the bolt. This movement will bend the retainer tabs 90 , 92 , 94 , 96 out of the way for downward movement of the nut 64 so that the lip 86 does not interfere with the aperture 84 as the nut 64 is slid through the opening between the legs 66 , 68 .
- the lateral retention tab 100 is pried upward to a position substantially parallel to the base 82 .
- a bending force of about 10-20 lbs. is required to bend the retention tab 100 .
- the nut 64 may be removed for servicing simply by bending the tabs 90 , 92 , 94 , 96 to move the nut 64 away from the base 82 , and then bending the lateral retention tab 100 upward to slide the nut 64 along the base out the end of the cage structure 62 between the legs 66 , 68 .
- FIGS. 19 - 21 illustrate a third embodiment of the invention.
- the cage-nut assembly 110 includes a cage structure 112 and a Teflon-coated nut 114 , which cooperate to form the cage-nut assembly 110 .
- the cage structure includes a flat base 116 which is supported by standoff legs 118 , 120 , 122 , 124 .
- the flat base 116 and the standoff legs 118 , 120 cooperate to form an open end 126 .
- the standoff legs include bendable retainer tabs 128 , 130 which are configured to hold the nut 114 in position to be torqued down by a bolt.
- the tabs 128 , 130 are bendable to allow the nut 114 to move downward as viewed in FIG. 19 when torqued down to a workpiece by such a bolt.
- the tabs 128 , 130 are bendable under approximately 65-80 lbs. of bending torque.
- the tabs 128 , 130 could be configured in any variety of shapes, and the standoff legs could be combined to form a continuous support wall.
- the flat base 116 includes a bolt-receiving aperture 132 , which is formed coextensively with the open end 126 of the cage structure 112 .
- the bolt-receiving aperture 132 receives a tubular extrusion 134 which extends from the nut 114 .
- the aperture 135 of the tubular extrusion 134 receives a bolt, not shown, which torques down the nut 114 .
- First and second curved tangs 136 , 138 cooperate to form a blocking member which prevents the nut 114 from sliding along the flat base 116 through the open end 126 of the cage structure 112 .
- the tangs 136 , 138 are bendable toward the angled sides 140 , 142 , such as by a screwdriver, to allow the tubular extrusion 134 to pass by the blocking member formed by the curved tangs 136 , 138 , thereby allowing removal of the nut.
- This blocking member is configured to allow removal of the nut for servicing.
- the curved tangs 136 , 138 are bendable when less than approximately 20 lbs. of force is applied to the curved tangs 136 , 138 , such as by a screwdriver, and the nut 114 may then be slid along the flat base 116 through the open end 126 of the cage structure 112 .
- the standoff legs 118 , 120 include small projections 144 , 146 to facilitate projection welding of the cage structure 112 to a workpiece to which the nut 114 is being attached.
- FIGS. 22 - 24 show a slightly modified embodiment of a cage structure in accordance with the invention, wherein like reference numerals with a prime (′) indicate like components from the embodiment of FIG. 19. This embodiment differs from that of FIG. 19 only in the number of bendable retainer tabs 128 ′. Of course, the number of retainer tabs and the number and configuration of the standoff legs could vary within the scope of the present invention.
Abstract
A cage-nut assembly includes a nut positioned within a cage structure. The cage structure is configured to provide high torsional strength to prevent rotation of the nut. The cage structure has a flat base and an at least partially open end portion. The cage structure includes a blocking member preventing the nut from moving laterally along the base through the at least partially open end portion. The blocking member is relatively structurally weak in a direction orthogonal to a torsional rotation direction of the nut. The structurally weak blocking member is bendable when less than approximately 20 lbs. of force is applied to the blocking member to open the end portion and allow the nut to move laterally along the base through the end portion for removal of the nut.
Description
- This application is a division of U.S. application Ser. No. 09/626,610, filed Jul. 27, 2000, which, in turn, claims the benefit of U.S. provisional application Serial No. 60/175,593, filed Jan. 11, 2000.
- 1. Field of the Invention
- The present invention relates to caged female threaded fasteners which provide high torsional strength while allowing removal of the fasteners for servicing.
- 2. Background Art
- It is a common manufacturing practice to apply coatings of paint or other decorative or protective coatings to large subassemblies prior to final assembly of the completed product. For example, in the manufacture of automobiles, the body of the automobile will be formed and assembled, and then painted. Other automotive subassemblies, such as suspension parts, undercarriages, or closures for the automobile (such as the doors, hood, and trunk lid) are separately manufactured and painted, and are assembled with the painted automobile body to form a complete automobile.
- In most cases, the subassemblies of the automobile will be secured to the auto body by threaded fasteners. However, the use of threaded fasteners often presents difficulties in final assembly. For example, in the case of assembling a door into a body, one of the matching threaded fasteners, for example, a female fastener, may be located inside a door pillar. The door pillar in a modern automobile of unibody construction very often is a hollow metal part which may be completely enclosed after manufacture of the vehicle body. In order to provide a female fastener inside the pillar, it is necessary to mount the female fastener, for example by welding, inside the pillar when the body is being manufactured.
- Due to variations in manufacturing tolerances, a degree of position adjustment for the female fastener must be provided so that the door and body may be properly aligned during final assembly. Position adjustment is provided by using a female fastener called a “cage-nut”, which is usually a nut encaged in a structure that is attached to the inside of the door pillar. The nut is provided with a range of movement within the encaging structure so that when the door is assembled to the body, the alignment of the door and the body can be adjusted until they meet manufacturing standards.
- Cage-nuts are also frequently used in situations where the nut is not completely enclosed, such as on the frame of the vehicle. In these situations, the use of a cage-nut welded onto the body prior to final assembly reduces the time needed for final assembly of the automobile.
- It has been found, however, that during the step of painting and baking paint on the body of the auto, that the nut will often weld or adhere to the cage. This paint-welding creates problems in the step of assembling and aligning the door or other subassembly within the body, because the nut no longer has any freedom of movement. It can be difficult to free the paint welded nut from the cage if it is in an enclosed space. Consequently, the final assembly of the automobile will be slowed while these parts are freed up enough so that the door or other subassembly can be properly aligned and assembled with the body.
- Another problem associated with such cage-nut assemblies is that a bolt may be stripped or cross-threaded into the encaged nut, particularly if the nut is misaligned as a result of adhering to the cage structure. In this situation, it is difficult, if not impossible, to remove the nut and bolt for servicing because the nut may not be removable from the cage. Accordingly, it is desirable to provide an improved cage-nut design in which the frequency of paint-welding the nut to the cage structure is minimized, and the nut is removable from the cage for servicing when the bolt or nut are stripped or cross-threaded.
- The present invention overcomes the above referenced shortcomings of prior art cage-nut assemblies by providing a cage-nut assembly including a Teflon-coated nut and a cage structure which provides high torsional strength while providing a structurally weak portion which allows bending of the cage structure for removal of the nut for servicing.
- In a first embodiment, a flat base is provided with opposing strap portions which wrap around opposing ends of an oblong (i.e., longer than wide, including diamond shape or other shape providing a portion for containment and torsional resistance), Teflon-coated nut. The flat base forms an enclosed aperture for receiving a bolt. The straps are bendable away from the body to facilitate nut removal. The straps are configured to provide high torsional strength. Small tabs extend from the base to space the nut away from the base to prevent paint-welding of the nut to the base, and are bendable to allow the nut member to seat when torqued down.
- In another embodiment, standoff legs support a flat base with an enclosed aperture formed therethrough for receiving a bolt. A rectangular Teflon-coated nut is positioned within the cage. The legs include small, bendable tabs which hold the nut in position and are bendable to allow the nut member to seat when torqued down (when a bending-force of approximately 65 lbs. is applied to the legs). One of the tabs prevents the nut from sliding out of the cage, and is bendable to allow removal and servicing of the nut (when a bending-force of approximately 10 to 20 lbs. is applied).
- In a further embodiment, the cage-nut assembly includes a nut positioned within a cage structure, the cage structure being configured to provide high torsional strength to prevent rotation of the nut. Preferably, the cage structure provides sufficiently high torsional strength that the first failure would be that of the weld holding the cage structure against a workpiece when a significant torque is applied to the nut (preferably at approximately 190 Nm). The cage structure has a flat base and an at least partially open end portion. The cage structure includes a relatively structurally weak blocking member preventing the nut from exiting the cage structure through the end portion. The structurally weak blocking member is bendable when less than approximately 20 lbs. of force is applied to the blocking member to open the end portion and allow the nut to move laterally along the base through the end portion for removal of the nut. The flat base includes a bolt-receiving aperture which is formed coextensively with the at least partially open end portion. The blocking member comprises first and second curved tangs formed coplanar with the flat base. The nut includes a protruding tubular portion which extends through the bolt-receiving aperture. Standoff legs support the flat base and include small projections to facilitate projection welding.
- In the various embodiments, the flat base may be positioned flat against a workpiece to which the nut is being attached, or may be spaced from the workpiece by the above-described standoff legs.
- Accordingly, an object of the invention is to provide an improved cage-nut assembly in which the nut is removable from the cage for servicing.
- The above object and other objects, features and advantages of the present invention are readily apparent from the following detailed description of the best modes for carrying out the invention when taken in connection with the accompanying drawings.
- FIG. 1 shows a perspective view of a cage structure in accordance with a first embodiment of the invention;
- FIG. 2 shows a plan view of the cage structure of FIG. 1;
- FIG. 3 shows a side view of the cage structure of FIG. 2;
- FIG. 4 shows a cross-sectional view taken at line A-A of FIG. 2;
- FIG. 5 shows a plan view of a nut for use with the embodiment of FIG. 1;
- FIG. 6 shows a side view of the nut of FIG. 5;
- FIG. 7 shows a reverse side view of the nut of FIG. 5;
- FIG. 8 shows a perspective view of a cage-nut assembly in accordance with the embodiment of FIG. 1;
- FIG. 9 shows a perspective view of a cage-nut assembly in a slightly modified embodiment;
- FIG. 10 shows the cage-nut assembly of FIG. 9 with the nut being removed from the cage structure;
- FIG. 11 shows an underside perspective view of a cage-nut assembly in accordance with an alternative embodiment of the invention;
- FIG. 12 shows a top perspective view of the cage-nut assembly of FIG. 11;
- FIG. 13 shows a top plan view of the cage-nut assembly of FIG. 11;
- FIG. 14 shows a side view of the cage-nut assembly of FIG. 13 with the bolt and vehicle body component;
- FIG. 15a shows a cross-sectional view taken at line 15 a-15 a of FIG. 14;
- FIG. 15b shows a cross-sectional view of the cage-nut assembly of FIG. 15a, with the bolt torqued down and the nut seated;
- FIG. 16 shows an enlarged view of
detail 16 from FIG. 14; - FIG. 17 shows a plan view of the nut shown in FIG. 11;
- FIG. 18 shows a side view of the nut of FIG. 17;
- FIG. 19 shows a perspective view of a cage-nut assembly in accordance with a third embodiment of the invention;
- FIG. 20 shows a plan view of a nut corresponding with the embodiment of FIG. 19;
- FIG. 21 shows a sectional view taken at line21-21 of FIG. 20;
- FIG. 22 shows a plan view of a slightly modified embodiment of a cage structure in accordance with the invention;
- FIG. 23 shows a side view of the cage structure of FIG. 22; and
- FIG. 24 shows an end view of the cage structure of FIG. 22.
- Referring to FIGS.1-8, a first embodiment of a cage-
nut assembly 10 is shown in accordance with the present invention. The cage-nut assembly 10 includes acage structure 12, shown in FIGS. 1-4, and a Teflon-coatednut 14, shown in FIGS. 5-7, which cooperate to form the cage-nut assembly 10, shown in FIG. 8. - The
cage structure 12 includes aflat base 16 having a fullyenclosed aperture 18 formed therethrough for receiving a bolt (not shown).Standoff tabs flat base 16 to hold thenut 14 away from the base 16 to prevent the nut from paint-welding to the base 16 (i.e. sticking to the base by dried paint). Thetabs - The
base 16 is preferably a stamped steel component, and includesintegral straps openings oblong nut 14. Thestraps openings - As shown in FIGS.5-6, the
nut 14 is generally diamond-shaped and includes acentral aperture 36 which is threaded to receive the bolt. - As viewed in FIG. 8, the
flat base 16 would be welded to a vehicle frame or other structural component, and the bolt would be inserted through an underside thereof, as viewed in this Figure. Theopenings straps nut 14, thereby allowing thenut 14 to float for alignment with the bolt. The engagement of the opposing ends 32,34 of thenut 14 with thestraps nut 14 during assembly. - The opposing ends38,40 of the
flat base 12 may be bent upward for servicing thenut 14. As the opposing ends 38,40 are pried upward, theflat base 12 would bend in the structurallyweakest areas cage structure 12 are partially open, and thestraps nut 14 from sliding through the partially open opposing ends 38,40. The blocking members are relatively structurally weak in a direction orthogonal to the torsional rotation direction of the nut, such that the blocking members may be pried up to allow the nut to slide through one of the opposing ends 38,40. The language “orthogonal to the torsional rotation direction of the nut” is intended to mean perpendicular to an arc swept out by a distal end of the rotating nut, and includes perpendicular directions which are in the plane of the arc or perpendicular to the plane of the arc. - FIGS. 9 and 10 show a slightly modified embodiment, wherein the opposing ends38′,40′ are substantially enclosed. The ends 38′,40′ are only open at an underside thereof, as viewed in FIGS. 9 and 10. FIG. 10 illustrates the
end 40′ having been pried upward with respect to theflat base 12 about the structurallyweak portion 44 for removal of thenut 14 for servicing. - Referring to FIGS.11-18, a further embodiment of the invention is shown. These figures show a cage-
nut assembly 60, including thecage structure 62, which is preferably a stamped steel component, and a Teflon-coatedrectangular nut 64. - The
cage structure 62 includesstandoff legs vehicle body component 75 by theconical projections - The
standoff legs flat base 82 which has an enclosedaperture 84 formed therethrough for receiving thebolt 85 which is inserted from the vehicle body side of thecage structure 62, as shown in FIGS. 14, 15a and 15 b, and protrudes through thelip 86 surrounding the threadedaperture 88 of thenut 64. Thelip 86 also protrudes through theenclosed aperture 84 of thebase 82, as shown in FIGS. 12 and 15a. - This
cage structure 62 in combination with therectangular nut 64 provides substantial torsional strength for supporting thenut 64 against rotation when a bolt is driven into the nut 64 (preferably the weld fails before the cage structure at around 190 Nm). Between thelegs vertical retainer tabs nut 64 against thebase 82. - The
cage structure 62 is open at the longitudinal end betweenlegs bolt 64 therethrough is prevented only by thelateral retention tab 100. Accordingly, if a bolt is cross-threaded into thenut 64, thetabs nut 64 away from the base 82 by pulling on the bolt. This movement will bend theretainer tabs nut 64 so that thelip 86 does not interfere with theaperture 84 as thenut 64 is slid through the opening between thelegs nut 64 through the opening between thelegs lateral retention tab 100 is pried upward to a position substantially parallel to thebase 82. A bending force of about 10-20 lbs. is required to bend theretention tab 100. Accordingly, thenut 64 may be removed for servicing simply by bending thetabs nut 64 away from thebase 82, and then bending thelateral retention tab 100 upward to slide thenut 64 along the base out the end of thecage structure 62 between thelegs - FIGS.19-21 illustrate a third embodiment of the invention. In this embodiment, the cage-
nut assembly 110 includes acage structure 112 and a Teflon-coatednut 114, which cooperate to form the cage-nut assembly 110. The cage structure includes aflat base 116 which is supported bystandoff legs flat base 116 and thestandoff legs open end 126. - The standoff legs include
bendable retainer tabs nut 114 in position to be torqued down by a bolt. Thetabs nut 114 to move downward as viewed in FIG. 19 when torqued down to a workpiece by such a bolt. Thetabs tabs - The
flat base 116 includes a bolt-receivingaperture 132, which is formed coextensively with theopen end 126 of thecage structure 112. The bolt-receivingaperture 132 receives atubular extrusion 134 which extends from thenut 114. Theaperture 135 of thetubular extrusion 134 receives a bolt, not shown, which torques down thenut 114. - First and second
curved tangs nut 114 from sliding along theflat base 116 through theopen end 126 of thecage structure 112. Thetangs angled sides tubular extrusion 134 to pass by the blocking member formed by thecurved tangs - This blocking member, like other embodiments of the invention, is configured to allow removal of the nut for servicing. Like other embodiments, the
curved tangs curved tangs nut 114 may then be slid along theflat base 116 through theopen end 126 of thecage structure 112. - The
standoff legs small projections cage structure 112 to a workpiece to which thenut 114 is being attached. - FIGS.22-24 show a slightly modified embodiment of a cage structure in accordance with the invention, wherein like reference numerals with a prime (′) indicate like components from the embodiment of FIG. 19. This embodiment differs from that of FIG. 19 only in the number of
bendable retainer tabs 128′. Of course, the number of retainer tabs and the number and configuration of the standoff legs could vary within the scope of the present invention. - While the best modes for carrying out the invention have been described in detail, those familiar with the art to which this invention relates will recognize various alternative designs and embodiments for practicing the invention without departing from the scope of the appended claims.
Claims (20)
1. A cage-nut assembly, comprising:
a nut; and
a cage structure having the nut therein, the cage structure being configured to provide high torsional strength to prevent rotation of the nut, the cage structure further having a flat base and an at least partially open end portion,
the cage structure including a relatively structurally weak blocking member preventing the nut from moving laterally along the base through the at least partially open end portion, the structurally weak blocking member being formed by one of first and second opposing straps which extend from the flat base to wrap around opposing ends of the nut, the one of first and second opposing straps providing high torsional strength and being bendable away from the flat base to enable removal of the nut from the cage structure.
2. The cage-nut assembly of claim 1 , further comprising small tabs extending away from the base to space the nut away from the base to prevent paint-welding of the nut to the base, the small tabs being bendable to allow the nut to seat when torqued down.
3. The cage-nut assembly of claim 1 , wherein the nut is Teflon-coated.
4. The cage-nut assembly of claim 1 , wherein the flat base forms an aperture to receive a bolt.
5. The cage-nut assembly of claim 4 , wherein the aperture is fully enclosed by the base.
6. The cage-nut assembly of claim 1 , wherein the nut is oblong, and first and second opposing straps wrap around opposing ends of the oblong nut.
7. The cage-nut assembly of claim 6 , wherein the oblong nut is generally diamond-shaped.
8. A cage-nut assembly, comprising:
a nut; and
a cage structure having the nut therein, the cage structure being configured to provide high torsional strength to prevent rotation of the nut, the cage structure further having a flat base and an at least partially open end portion, the flat base including opposing straps extending therefrom to wrap around opposing ends of the nut,
the cage structure including a blocking member adjacent the at least partially open end portion preventing the nut from moving laterally along the base through the at least partially open end portion, the blocking member being relatively structurally weak in a direction orthogonal to a torsional rotation direction of the nut,
the blocking member being bendable in the orthogonal direction when less than approximately 20 lb. of force is applied to the blocking member to open the end portion and allow the nut to move laterally along the base through the end portion for removal of the nut.
9. The cage-nut assembly of claim 8 , wherein the blocking member is formed by one of the opposing straps, the one of the opposing straps providing high torsional strength and being bendable away from the flat base to enable removal of the oblong nut from the cage structure.
10. The cage-nut assembly of claim 8 , further comprising small tabs extending away from the base to space the nut away from the base to prevent paint-welding of the nut to the base, the small tabs being bendable to allow the nut to seat when torqued down.
11. The cage-nut assembly of claim 8 , wherein the nut is Teflon-coated.
12. The cage-nut assembly of claim 8 , wherein the flat base forms an aperture to receive a bolt.
13. The cage-nut assembly of claim 12 , wherein the aperture is fully enclosed by the base.
14. The cage-nut assembly of claim 8 , wherein the nut is oblong, and first and second opposing straps wrap around opposing ends of the oblong nut.
15. The cage-nut assembly of claim 14 , wherein the oblong nut is generally diamond-shaped.
16. A cage-nut assembly, comprising:
a nut; and
a cage structure having the nut therein, the cage structure being configured to provide high torsional strength to prevent rotation of the nut, the cage structure further having a flat base and an at least partially open end portion,
the cage structure including a relatively structurally weak blocking member preventing the nut from moving laterally along the base through the at least partially open end portion, the structurally weak blocking member being bendable to open the end portion and allow the nut to move laterally along the base through the end portion for removal of the nut,
the flat base including a bolt-receiving aperture which is formed coextensively with the at least partially open end, the blocking member including at least one curved tang formed coplanar with the flat base.
17. The cage-nut assembly of claim 16 , wherein the nut includes a protruding tubular portion which extends through the bolt-receiving aperture.
18. The cage-nut assembly of claim 16 , wherein the nut is Teflon-coated.
19. The cage-nut assembly of claim 16 , wherein the flat base is supported by standoff legs, the legs including bendable retainer tabs configured to hold the nut in position, the bendable retainer tabs being bendable to allow movement of the nut away from the flat base in a perpendicular direction with respect to the flat base.
20. The cage-nut assembly of claim 19 , wherein the standoff legs include small projections to facilitate projection welding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/657,872 US20040047705A1 (en) | 2000-01-11 | 2003-09-09 | Cage-nut assembly |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17559300P | 2000-01-11 | 2000-01-11 | |
US09/626,610 US6644902B1 (en) | 2000-01-11 | 2000-07-27 | Cage-nut assembly |
US10/657,872 US20040047705A1 (en) | 2000-01-11 | 2003-09-09 | Cage-nut assembly |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/626,610 Division US6644902B1 (en) | 2000-01-11 | 2000-07-27 | Cage-nut assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040047705A1 true US20040047705A1 (en) | 2004-03-11 |
Family
ID=26871364
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/626,610 Expired - Lifetime US6644902B1 (en) | 2000-01-11 | 2000-07-27 | Cage-nut assembly |
US10/657,872 Abandoned US20040047705A1 (en) | 2000-01-11 | 2003-09-09 | Cage-nut assembly |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/626,610 Expired - Lifetime US6644902B1 (en) | 2000-01-11 | 2000-07-27 | Cage-nut assembly |
Country Status (2)
Country | Link |
---|---|
US (2) | US6644902B1 (en) |
EP (2) | EP2275693A3 (en) |
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US20040223805A1 (en) * | 2003-05-09 | 2004-11-11 | Benedetti Steven M. | Metal/plastic insert molded sill plate fastener |
US20040240932A1 (en) * | 2003-05-30 | 2004-12-02 | Benedetti Steven M. | Self centering sill plate retainer with opposing wings |
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US20050134069A1 (en) * | 2003-12-22 | 2005-06-23 | Nissan Technical Center North America, Inc. | Vehicle floating nut assembly |
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Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040071510A1 (en) * | 1999-03-22 | 2004-04-15 | Megasecur Inc. | Flood control barrier |
US7021875B2 (en) * | 2001-10-30 | 2006-04-04 | Newfrey Llc | Coated, weldable fastener, a method of preventing adherence of a second coating to a fastener portion, and a method fastening |
US7594985B2 (en) | 2001-10-30 | 2009-09-29 | Newfrey Llc | Method of preventing adherence of a second coating to a fastener portion |
US20040042868A1 (en) * | 2001-10-30 | 2004-03-04 | Yake Donald L. | Coated, weldable fastener, a method of preventing adherence of a second coating to a fastener portion, and a method fastening |
US7255521B2 (en) | 2001-10-30 | 2007-08-14 | Newfrey Llc | Coated, weldable fastener, a method of preventing adherence of a second coating to a fastener portion, and a method fastening |
US20060159544A1 (en) * | 2001-10-30 | 2006-07-20 | Yake Donald L | Coated, weldable fastener, a method of preventing adherence of a second coating to a fastener portion, and a method fastening |
US20050258045A1 (en) * | 2001-10-30 | 2005-11-24 | Yake Donald L | Method of preventing adherence of a second coating to a fastener portion |
US7364382B2 (en) | 2003-05-09 | 2008-04-29 | Newfrey Llc | Metal/plastic insert molded sill plate fastener |
US20060280554A1 (en) * | 2003-05-09 | 2006-12-14 | Benedetti Steven M | Metal/plastic insert molded sill plate fastener |
US20070000102A9 (en) * | 2003-05-09 | 2007-01-04 | Rosalind Nessel | Sill plate retainer |
US7186051B2 (en) | 2003-05-09 | 2007-03-06 | Newfrey Llc | Metal/plastic insert molded sill plate fastener |
US20040244160A1 (en) * | 2003-05-09 | 2004-12-09 | Rosalind Nessel | Sill plate retainer |
US7272873B2 (en) | 2003-05-09 | 2007-09-25 | Newfrey Llc | Sill plate retainer |
US20040223805A1 (en) * | 2003-05-09 | 2004-11-11 | Benedetti Steven M. | Metal/plastic insert molded sill plate fastener |
US7179013B2 (en) | 2003-05-30 | 2007-02-20 | Newfrey Llc | Self centering sill plate retainer with opposing wings |
US20040240932A1 (en) * | 2003-05-30 | 2004-12-02 | Benedetti Steven M. | Self centering sill plate retainer with opposing wings |
US7441996B2 (en) * | 2003-12-22 | 2008-10-28 | Nissan Technical Center North America, Inc. | Vehicle floating nut assembly |
US20050134069A1 (en) * | 2003-12-22 | 2005-06-23 | Nissan Technical Center North America, Inc. | Vehicle floating nut assembly |
US20130243980A1 (en) * | 2006-07-25 | 2013-09-19 | Zephyros, Inc. | Structural reinforcements |
US8656669B2 (en) * | 2006-07-25 | 2014-02-25 | Zephyros, Inc. | Structural reinforcements |
DE102006044513A1 (en) * | 2006-09-21 | 2008-04-03 | Jungheinrich Ag | Fastening device for fastening a component to a carrier component |
US20080102713A1 (en) * | 2006-11-01 | 2008-05-01 | Orange Charles M | Terminal housing battery cable connector clamp and fastening bolt |
US20080193255A1 (en) * | 2007-02-13 | 2008-08-14 | Gm Global Technology Operations, Inc. | Method for attaching fastener to the inside of a member |
US7880112B2 (en) | 2007-02-13 | 2011-02-01 | GM Global Technology Operations LLC | Method for welding and adhesively attaching a shaped fastener to inside of member |
US8292561B2 (en) | 2007-10-17 | 2012-10-23 | Menon Narayanan P | Cage nut assembly |
US20090103996A1 (en) * | 2007-10-17 | 2009-04-23 | Menon Narayanan P | Cage Nut Assembly |
US8109704B2 (en) * | 2010-02-09 | 2012-02-07 | Whitesell International Corporation | Nut assembly for drain pan |
US20110194913A1 (en) * | 2010-02-09 | 2011-08-11 | Lewis Jeffrey C | Nut assembly for drain pan |
US20140056665A1 (en) * | 2011-01-19 | 2014-02-27 | Ruia Global Fasteners Ag | Self-centring cage nut |
US9140290B2 (en) * | 2011-06-11 | 2015-09-22 | Ruia Global Fasteners Ag | Self-centring cage nut |
CN107165921A (en) * | 2017-06-12 | 2017-09-15 | 北京汽车研究总院有限公司 | A kind of clamping apparatus and automobile of automobile nut |
US11300149B2 (en) * | 2018-06-27 | 2022-04-12 | Nio (Anhui) Holding Co., Ltd. | Floating nut, battery assembly and vehicle |
JP2021520613A (en) * | 2019-02-21 | 2021-08-19 | エルジー・ケム・リミテッド | A battery module having a terminal connection structure with a floating nut and a battery pack containing the battery module. |
JP7171119B2 (en) | 2019-02-21 | 2022-11-15 | エルジー エナジー ソリューション リミテッド | Battery module having terminal connection structure with floating nut and battery pack including the same |
Also Published As
Publication number | Publication date |
---|---|
EP2275693A2 (en) | 2011-01-19 |
EP1116890A1 (en) | 2001-07-18 |
US6644902B1 (en) | 2003-11-11 |
EP2275693A3 (en) | 2012-07-04 |
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Legal Events
Date | Code | Title | Description |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |