US20160208844A1 - Crimped capped fastener - Google Patents
Crimped capped fastener Download PDFInfo
- Publication number
- US20160208844A1 US20160208844A1 US14/976,190 US201514976190A US2016208844A1 US 20160208844 A1 US20160208844 A1 US 20160208844A1 US 201514976190 A US201514976190 A US 201514976190A US 2016208844 A1 US2016208844 A1 US 2016208844A1
- Authority
- US
- United States
- Prior art keywords
- fastener
- crimp
- cap
- outer flange
- segments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000002788 crimping Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 239000010935 stainless steel Substances 0.000 claims description 15
- 230000008901 benefit Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 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
- F16B37/14—Cap nuts; Nut caps or bolt caps
- F16B37/145—Sleeve nuts, e.g. combined with bolts
-
- 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
- F16B37/14—Cap nuts; Nut caps or bolt caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
- B21D39/048—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods using presses for radially crimping tubular elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/64—Making machine elements nuts
- B21K1/70—Making machine elements nuts of special shape, e.g. self-locking nuts, wing nuts
- B21K1/704—Cap nuts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/143—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same for installing wire thread inserts or tubular threaded inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
- B60B3/14—Attaching disc body to hub ; Wheel adapters
- B60B3/16—Attaching disc body to hub ; Wheel adapters by bolts or the like
-
- 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
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
Definitions
- the present inventions relate generally to fasteners, and more particularly, to a fastener with a cap crimped around a flange.
- Fasteners are used in numerous applications to attach various components together.
- a fastener has at least a threaded portion and one or more wrenching surfaces thereon.
- the wrenching surfaces are designed to receive torque from a tool, such as a socket or other wrench, which is used to tighten or loosen the fastener.
- a conventional fastener such as a nut
- the fastener may have internal threads and six wrenching surfaces oriented in a hexagonal shape around the internal threads.
- other fasteners may have external threads, such as bolts and screws.
- Fasteners may also have a different number of wrenching surfaces as desired.
- Aesthetics is one concern for certain fasteners, such as automobile wheel nuts.
- many automotive consumers are drawn to the aesthetics of an automobile's wheels, since this is often a distinctive part of an automobile.
- the wheel nuts become an integral component of the aesthetics of the wheel, and the automobile more generally, since the wheel nuts form a highly visible pattern around the center of the wheel.
- automotive wheel nuts are highly susceptible to corrosion problems due to the wet and salty environment that is often encountered by the wheels of a vehicle. Naturally, corrosion on the visible surfaces of a wheel nut greatly diminishes the aesthetic appearance of the wheel and the automobile generally.
- stainless steel capped wheel nuts One approach that has been highly successful in addressing wheel nut aesthetics is stainless steel capped wheel nuts.
- a nut body is capped with a stainless steel covering. Since stainless steel is resistant to corrosion, highly durable and visually attractive, stainless steel capped wheel nuts have been capable of addressing a large portion of the demand for aesthetically pleasing wheel nuts.
- Another advantage of stainless steel capped wheel nuts is that the color of stainless steel, a shiny silverish color, generally matches the color used for most automobile wheels.
- a capped wheel nut is described with a cap covering the wrenching surfaces of a fastener body.
- the cap wraps around a first outer flange at the bottom of the wrenching surfaces to axially retain the cap on the fastener body.
- the end of the cap is crimped into a groove between the first outer flange and a second outer flange that the cap does not cover.
- a crimping tool and method of crimping are also described to crimp the end of the cap.
- the crimping tool has crimp segments with an internal rib. During crimping, the rib presses radially into the groove of the fastener body to crimp the end of the cap. Additional details and advantages are described below in the detailed description.
- a fastener with a crimped cap comprising: a fastener body comprising a thread, a plurality of wrenching surfaces disposed along a top portion of said fastener body, a first outer flange disposed below said wrenching surfaces and extending outward therefrom, a second outer flange disposed below said first outer flange, and a groove disposed between said first and second outer flanges; and a cap disposed over said wrenching surfaces and said first outer flange, an end of said cap being crimped around said first outer flange, said end being crimped in said groove between said first and second outer flanges, wherein a bottom portion of said fastener body comprising said second outer flange and said thread remains uncovered by said cap.
- the fastener wherein said cap is made of stainless steel.
- fastener wherein said fastener is an automotive wheel fastener.
- said fastener body comprises a tapered nose below said second outer flange, said tapered nose being uncovered by said cap.
- fastener wherein said fastener is an automotive wheel fastener.
- the fastener wherein said cap is made of stainless steel.
- said fastener body comprises a tapered nose below said second outer flange, said tapered nose being uncovered by said cap.
- the fastener wherein said cap is made of stainless steel, said cap covers a top end of said fastener body, said fastener body is a nut and said thread is an internal thread, and said fastener is an automotive wheel fastener.
- a tool for crimping a cap onto a fastener body said fastener body comprising a thread, a plurality of wrenching surfaces disposed along a top portion of said fastener body, a first outer flange disposed below said wrenching surfaces and extending outward therefrom, a second outer flange disposed below said first outer flange, and a groove disposed between said first and second outer flanges, and said cap being disposed over said wrenching surfaces and said first outer flange, an end of said cap being crimped around said first outer flange, said end being crimped in said groove between said first and second outer flanges, a bottom portion of said fastener body comprising said second outer flange and said thread remaining uncovered by said cap, said tool comprising: a fastener holder, said fastener holder configured to hold and support said fastener body and said cap, said fastener body being disposed in said cap, and said fastener holder receiving said top portion of said fastener body and said
- the tool further comprising a first stage and a second stage after said first stage, said rib moving axially toward said first outer flange without moving radially inward during said first stage, and said rib moving radially inward into said groove without moving axially toward said first outer flange during said second stage.
- the tool further comprising a third stage after said second stage, said rib moving axially within said groove toward said first outer flange without moving radially inward during said third stage.
- said crimp head further comprises a centering guide, said centering guide being spring biased against said bottom portion of said fastener body, said centering guide thereby centering said crimp head and said fastener body.
- the tool further comprising a crimp head body, said crimp head body comprising an internal cavity and a tapered inner surface tapering outwardly toward said fastener holder, said crimp segments comprising a tapered outer surface tapering outwardly toward said fastener holder, said crimp segments received within said internal cavity of said crimp head body and said tapered inner and outer surfaces engaged therewith, said crimp head body moving toward said fastener holder relative to said crimp segments, said tapered inner and outer surfaces thereby sliding relative to each other and forcing said crimp segments radially inward.
- the tool further comprising a first spring disposed between said crimp head body and said crimp segments, said crimp head body and said crimp segments moving together toward said fastener holder during a first stage without compressing said first spring and without said crimp segments moving radially inward, and said crimp head body moving toward said fastener holder relative to said crimp segments during a second stage thereby compressing said first spring and forcing said crimp segments radially inward.
- the tool further comprising a second spring disposed between said crimp segments and said fastener body, a bias force of said second spring being higher than said first spring such that said first spring is compressed before said second spring is compressed, said crimp head body and said crimp segments moving together toward said fastener holder during a third stage while compressing said second spring and without said crimp segments moving radially inward.
- the tool further comprising a retainer between said crimp head body and said crimp segments, said retainer retaining said crimp segments within said crimp head body, and a spring biasing said crimp head body and said crimp segments against said retainer.
- said retainer is a set screw threaded through said crimp head body, and said adjacent crimp segments comprise a longitudinal groove between said crimp segments, said set screw engaging said groove to retain said crimp segments within said crimp head body.
- the tool further comprising a center disposed within said crimp segments, said center comprising a spring and biasing said crimp segments outward against said crimp head body.
- said fastener holder supports said cap on a top side of said first outer flange, and further comprising a first spring disposed between said crimp head body and said crimp segments, said crimp head body and said crimp segments moving together toward said fastener holder during a first stage without compressing said first spring and without said crimp segments moving radially inward, and said crimp head body moving toward said fastener holder relative to said crimp segments during a second stage thereby compressing said first spring and forcing said crimp segments radially inward.
- said crimp head further comprises a centering guide, said centering guide being biased by a third spring against said bottom portion of said fastener body, said centering guide thereby centering said crimp head and said fastener body, further comprising a retainer between said crimp head body and said crimp segments, said retainer retaining said crimp segments within said crimp head body, said first spring biasing said crimp head body and said crimp segments against said retainer, and further comprising a center disposed on said centering guide and within said crimp segments, said third spring biasing said crimp segments outward against said crimp head body, said crimp segments move axially away from said center as said crimp head body and said crimp segments move toward said fastener holder, said center thereby only biasing said crimp segments outward before said crimp segments move away from said center, and said retainer is disposed between two of said crimp segments disposed adjacent each other.
- the tool further comprising a second spring disposed between said crimp segments and said fastener body, a bias force of said second spring being higher than said first spring such that said first spring is compressed before said second spring is compressed, said crimp head body and said crimp segments moving together toward said fastener holder during a third stage while compressing said second spring and without said crimp segments moving radially inward.
- said retainer is a set screw threaded through said crimp head body, and said adjacent crimp segments comprise a longitudinal groove between said crimp segments, said set screw engaging said groove to retain said crimp segments within said crimp head body.
- said fastener holder supports said cap on a top side of said first outer flange
- said crimp head further comprises a centering guide, said centering guide being spring biased against said bottom portion of said fastener body, said centering guide thereby centering said crimp head and said fastener body.
- the tool further comprising a first stage and a second stage after said first stage, said rib moving axially toward said first outer flange without moving radially inward during said first stage, and said rib moving radially inward into said groove without moving axially toward said first outer flange during said second stage.
- the tool further comprising a third stage after said second stage, said rib moving axially within said groove toward said first outer flange without moving radially inward during said third stage.
- FIG. 1 is a side view of a conventional capped fastener
- FIG. 2 is a cross-sectional view of a conventional crimp tool for crimping a cap onto a fastener body;
- FIG. 3 is a side view of an improved capped fastener
- FIG. 4 is a cross-sectional view of a conventional crimp tool with the improved fastener
- FIG. 5 is a cross-sectional view of a crimp tool for the improved capped fastener at the beginning of a first stage
- FIG. 6 is a perspective view of the crimp segments and a set screw
- FIG. 7 is a cross-sectional view of the crimp tool at the end of the first stage and at the beginning of the second stage;
- FIG. 8 is a cross-sectional view of the crimp tool at the end of the second stage and at the beginning of the third stage.
- FIG. 9 is a cross-sectional view of the crimp tool at the end of the third stage.
- FIG. 1 a conventional stainless steel capped automotive wheel nut 10 is shown in FIG. 1 .
- the top portion of the nut body 12 including the wrenching surfaces 14 , are covered by the stainless steel cap 16 .
- the stainless steel cap 16 is the only part of the nut 10 that is readily visible.
- the bottom portion of the nut body 12 is not covered by the cap 16 so that the nut 10 can be threaded onto the wheel without the cap 16 interfering with the threaded engagement.
- FIG. 2 A conventional tool 18 for crimping the cap 16 onto the nut body 12 is shown in FIG. 2 .
- the nut body 12 is inserted into the cap 16 , and the nut body 12 and cap 16 are received within a fastener holder 20 .
- a crimp head 22 then moves toward the fastener holder 20 and an angled surface 24 contacts the end 26 of the cap 16 .
- the crimp head 22 is shown at the bottom of its stroke such that the angled surface 24 of the crimp head 22 has pressed the end 26 of the cap 16 inward against the bottom side of the outer flange 28 .
- Crimping the end 26 of the cap 16 around the outer flange 28 principally serves to axially retain the cap 16 onto the nut body 12 so that the cap 16 does not slide off of the nut body 12 in use.
- FIG. 3 An improved capped fastener 30 is shown in FIG. 3 .
- the improved fastener 30 has a fastener body 32 with wrenching surfaces 14 along a top portion.
- the fastener body 32 has six wrenching surfaces 14 in a hexagonal arrangement.
- the fastener body 32 may also have a longitudinal hole 34 extending therethrough with an internal thread 36 along the bottom portion of the hole 34 .
- the cap 16 covers the top portion of the fastener body 32 including the hole 34 through the fastener body 32 .
- the cap 16 surrounds the wrenching surfaces 14 and generally matches the arrangement of the wrenching surfaces 14 so that a standard socket can be placed over the cap 16 to torque the fastener 30 .
- the cap 16 must be of sufficient robustness to withstand typical torque used to tighten and loosen automotive wheel nuts 30 without substantially damaging the cap 16 .
- the cap 16 is made from metal, and in the case of automobile wheel fasteners 30 , stainless steel is preferred for the cap 16 .
- the cap 16 may be pressed onto the fastener body 32 , may be welded to the fastener body 32 , or may be adhered to the fastener body 32 with adhesives in order to increase the durability of the cap 16 during tightening and loosening of the fastener 30 .
- a slip fit between the cap 16 and the fastener body 32 may be sufficient to maintain the desired durability of the cap 16 .
- the improved capped fastener 30 has two separate outer flanges 38 , 40 that are separated by a groove 42 therebetween.
- the end 26 of the cap 16 is crimped around the first outer flange 38 , which is located below the wrenching surfaces 14 and extends outward therefrom.
- the end 26 of the cap 16 is crimped into the groove 42 between the first and second outer flanges 38 , 40 .
- the second outer flange 40 which is located below the first outer flange 38 , and the threaded portion 36 remains uncovered by the cap 16 .
- the second outer flange 40 is preferably defined as the largest functional diameter required of the fastener 30 for clamping purposes.
- the fastener 30 is an automotive wheel nut 30
- the second outer flange 40 will be of sufficient diameter to clamp the wheel against the wheel hub.
- the second outer flange 40 is preferably the outer diameter of the tapered nose 44 , with the nose 44 tapering inward from the second outer flange 40 toward the threaded portion 36 and the bottom end of the fastener 30 .
- a conventional capped wheel nut 10 as illustrated in FIG.
- the flange 28 that the cap 16 is crimped around must be substantially larger than the outer diameter of the tapered nose 44 , or largest clamping diameter, since sufficient clearance is required on the bottom side for the crimping head 22 to crimp the end 26 of the cap 16 .
- the outer flange 38 that the cap 16 is crimped around may be made smaller since the end 26 of the cap 16 is crimped into a groove 42 between the first and second outer flanges 38 , 40 .
- the end 26 of the cap 16 is pressed into the groove 42 so that the end 26 is positioned radially inward from the outer surface of the second outer flange 40 .
- the first outer flange 38 may be slightly larger in size than the second outer flange 40
- the first outer flange 38 it is desirable for the first outer flange 38 to be as small as possible.
- the overall weight of the fastener 30 may be reduced since the outer flange 38 that the cap 16 is crimped around may be significantly reduced in size. For example, this may be result in a weight savings of about 5%-10%.
- a potential weight savings such as this may be significant for several reasons. Specifically, with respect to automotive wheel fasteners 30 , the weight of the fastener 30 is more critical than other components because the fastener 30 is attached directly to the wheel.
- this weight is often referred to as “unsprung weight.”
- the weight of the fasteners 30 also has a greater impact on acceleration and deceleration performance of a vehicle.
- the weight of an automobile wheel fastener 30 can have a disproportionate impact on the performance of a vehicle.
- reducing the weight of a wheel fastener 30 can reduce the cost of the automobile by reducing material costs. This can also be significant due to the quantity of wheel fasteners 30 that are used on a typical automobile. For example, many vehicles use five wheel fasteners 30 on each wheel and have four wheels on a vehicle, which means a total of twenty wheel fasteners 30 are required for each vehicle.
- One problem with the improved capped fastener 30 with two outer flanges 38 , 40 and a groove 42 therebetween is that conventional crimping methods do not work to crimp the end 26 of the cap 16 into a groove 42 .
- the improved fastener 30 does not provide sufficient clearance along the bottom side of the first outer flange 38 for a conventional crimping head 22 to crimp the end 26 of the cap 16 .
- FIGS. 5-9 a crimping tool 46 and method of crimping is illustrated for crimping the end 26 of the cap 16 into the groove 42 of the improved capped fastener 30 described above.
- the crimp tool 46 is shown at a point of first contact between the crimp head 48 and the fastener body 32 .
- the crimp tool 46 includes a fastener holder 50 , which will typically be located on the bottom side.
- the fastener body 32 and the cap 16 are received in the fastener holder 50 with the cap 16 surrounding the top portion of the fastener body 32 (i.e., the top portion of the fastener 30 is received upside down in the fastener holder 50 ).
- the fastener holder 50 holds and supports the fastener body 32 and the cap 16 .
- the fastener 30 is held in the fastener holder 50 by gravity. It may be desirable for the fastener holder 50 to have an internal cavity 52 receiving the wrenching surfaces 14 of the fastener 30 to provide additional support. Also, it is preferable for the fastener holder 50 to provide direct axial support to the cap 16 and the top side (bottom in the figures) of the first outer flange 38 .
- Crimp head 48 may include a crimp head body 54 , which may be tubular with an internal cavity 56 having an outwardly tapered inner surface 58 . If desired, the crimp head body 54 may also have a drive head 60 that is pinned 62 to the tubular body 54 so that the drive head 60 may be removed for easier assembly and disassembly.
- a series of crimp segments 64 may be circumferentially spaced around the internal cavity 56 of the crimp head body 54 . Preferably, the crimp segments 64 are unattached to each other with a longitudinal gap separating each of the crimp segments 64 .
- the crimp segments 64 may have an outwardly tapered outer surface 66 corresponding to the inner taper 58 of the crimp head body 54 .
- the tapered surfaces 58 , 66 of the crimp segments 64 and the crimp head body 54 are designed to engage each other and slide along the respective tapered surfaces 58 , 66 as further described below.
- the crimp segments 64 may also have an inwardly extending rib 68 that extends circumferentially around the crimp segments 64 .
- the rib 68 is designed to crimp the end 26 of the cap 16 into the groove 42 of the fastener body 32 .
- the crimp segments 64 may also have overhanging steps 69 designed to engage a second spring 90 , as further described below.
- a first spring 70 may be provided inside the internal cavity 56 of the crimp head body 54 between the drive head 60 and the crimp segments 64 .
- the first spring 70 biases the crimp segments 64 apart from each other. That is, the crimp segments 64 are biased downward relative to the crimp head body 54 .
- the crimp segments 64 are retained within the crimp head body 54 with a retainer 72 , which may be one or more set screws 72 .
- the set screws 72 may be threaded through the crimp head body 54 and may engage the crimp segments 64 .
- the bias of the first spring 70 pushes the crimp segments 64 downward until the crimp segments 64 press against the set screws 72 so that the set screws 72 retain the crimp segments 64 in the crimp head body 54 .
- the set screws 72 may be located between circumferentially adjacent crimp segments 64 .
- the crimp segments 64 may also be provided with a longitudinal groove 74 along the mating edges of the crimp segments 64 .
- each crimp segment 64 may form one side of the groove 74 .
- the side surfaces of the groove 74 may be radially straight as shown or may be radially tapered so that the groove 74 tapers inward.
- the groove 74 preferably only extends along the bottom portion of the crimp segments 64 and terminates below the top of the crimp segments 64 .
- the groove 74 may be tapered inward toward the top of the crimp segments 64 in a triangular shape so that the bottom portion of the groove 74 is wider than the top of the groove 74 .
- the screws 72 may engage the bottom, the sides and/or top of the groove 74 to retain the crimp segments 64 in the crimp head body 54 .
- the crimp head 48 may also be provided with a centering guide 76 for centering the fastener body 32 within the crimp head 48 .
- the centering guide 76 may be provided with a front cavity 78 for receiving the tapered nose 44 of the fastener body 32 .
- the centering guide 76 may extend down through the crimp segments 64 so that the front cavity 78 is located within an inner cavity 80 of the crimp segments 64 .
- the centering guide 76 may be biased downward toward the fastener holder 50 with a third spring 82 .
- the front cavity 78 of the centering guide 76 may contact the fastener body 32 before the rest of the crimp head 48 to initially center the crimp head 48 and fastener body 32 .
- the centering guide 76 may be provided with a center 84 located within the interior cavity 80 of the crimp segments 64 .
- the surface of the center 84 may be angled, or alternatively the internal contacting surface 86 of the crimp segments 64 could be angled, so that the downward spring pressure on the centering guide 76 presses outward against the internal surface 86 of the crimp segments 64 to push the crimp segments 64 outward against the crimp head body 54 .
- the spring pressure of the first spring 70 may maintain the spacing between the crimp head body 54 and the crimp segments 64 so that the crimp segments 64 and the crimp head body 54 move together toward the fastener holder 50 . That is, during the first stage there may be no relative movement between the tapered surfaces 58 , 66 of the crimp head body 54 and the crimp segments 64 , and the first spring 70 may not be compressed between the crimp head body 54 and the crimp segments 64 .
- the crimp segments 64 and the rib 68 may move axially toward the fastener holder 50 and the first outer flange 38 without moving radially inward during the first stage.
- movement of the crimp head 48 toward the fastener holder 50 during the first stage may cause crimp head body 54 to move axially toward the fastener holder 50 more, or at a faster rate, than crimp segments 64 move axially toward the fastener holder 50 .
- Compression of the first spring 70 may allow crimp head body 54 and crimp segments 64 to both move axially toward the fastener holder 50 , but at different rates.
- the strength of the first spring 70 may be varied to adjust the rate at which the crimp segments 64 move toward the fastener holder 50 . Accordingly, if crimp segments 64 move axially toward the fastener holder 50 at a slower rate than the crimp head body 54 , the tapered surfaces 58 , 66 of the crimp segments 64 and the crimp head body 54 slide relative to each other and push the crimp segments 64 radially inward. Therefore, the crimp segments 64 may move axially toward the fastener holder 50 while simultaneously moving radially inward. As a result, the end 26 of the cap 16 may be crimped into the groove 42 , as shown in FIG. 8 .
- the rib 68 moves over the second outer flange 40 and toward the first outer flange 38 .
- the crimp segments 64 and the inner surface 86 that initially contacts the center 84 moves axially away from the center 84 .
- the center 84 only biases the crimp segments 64 outward initially before the crimp segments 64 move away from the center 84 .
- the first stage may end when crimp segments 64 stop moving axially toward the fastener holder 50 as steps 69 on the crimp segments 64 contact the second spring 90 , as shown in FIG. 7 and FIG. 8 .
- the first stage may end when steps 69 on the crimp segments contact center 84 , if a second spring 90 is not included.
- the spring pressure of the first spring 70 and second spring 90 , or center 84 subsequently hold crimp segments 64 in place axially.
- the crimp segments 64 stop moving axially toward the fastener holder 50 while the crimp head body 54 continues to move axially downward. This causes the first spring 70 to compress.
- the tapered surfaces 58 , 66 of the crimp segments 64 and the crimp head body 54 slide relative to each other and push the crimp segments 64 radially inward. Therefore, during the second stage, the rib 68 moves radially inward into the groove 42 of the fastener body 32 without moving axially toward the first outer flange 38 . As a result, the end 26 of the cap 16 is crimped into the groove 42 .
- the first spring 70 becomes completely compressed between the crimp segments 64 and the crimp head body 54 .
- the crimp head body 54 and the crimp segments 64 are no longer able to move axially relative to each other, which in this case occurs when the drive head 60 abuts the spacer 88 between the crimp segments 64 and the drive head 60 .
- the first stage and the second stage may be combined if the crimp segments 64 move axially toward the fastener holder 50 while simultaneously moving radially inward.
- the crimp head 48 may also be provided with a second spring 90 , such as a Belleville spring 90 , between the crimp segments 64 and the centering guide 76 .
- the second spring 90 biases the crimp segments 64 up away from the fastener holder 50 since the second spring 90 is between the crimp segments 64 and the fastener body 32 .
- the bias force of the second spring 90 is higher than the bias force of the first spring 70 so that the second spring 90 is not compressed until the first spring 70 is fully compressed.
- the length of compression of the second spring 90 is also considerably less than the length of compression of the first spring 70 .
- the crimp head body 54 and the crimp segments 64 are no longer able to move axially relative to each other, the crimp head body 54 and the crimp segments 64 move axially together toward the fastener holder 50 during the third stage as the second spring 90 is compressed. That is, during the third stage the crimp segments 64 move axially but do not move radially inward. Therefore, the rib 68 moves axially in the groove 42 toward the first outer flange 38 to further crimp the end 26 of the cap 16 during the third stage. While the third stage is preferable to provide a higher quality crimp, it may not be necessary in certain applications.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Insertion Pins And Rivets (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Clamps And Clips (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/976,190 US20160208844A1 (en) | 2015-01-15 | 2015-12-21 | Crimped capped fastener |
EP16150218.2A EP3045745B1 (en) | 2015-01-15 | 2016-01-05 | Crimped capped fastener |
CN201610026934.1A CN105805140B (zh) | 2015-01-15 | 2016-01-14 | 将帽卷曲到紧固件本体上的工具及方法 |
JP2016006355A JP6771893B2 (ja) | 2015-01-15 | 2016-01-15 | 圧着されたキャップ付き締結具 |
US16/356,628 US11060548B2 (en) | 2015-01-15 | 2019-03-18 | Crimped capped fastener |
US17/373,132 US20220003262A1 (en) | 2015-01-15 | 2021-07-12 | Crimped capped fastener |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201562103898P | 2015-01-15 | 2015-01-15 | |
US14/976,190 US20160208844A1 (en) | 2015-01-15 | 2015-12-21 | Crimped capped fastener |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/356,628 Division US11060548B2 (en) | 2015-01-15 | 2019-03-18 | Crimped capped fastener |
Publications (1)
Publication Number | Publication Date |
---|---|
US20160208844A1 true US20160208844A1 (en) | 2016-07-21 |
Family
ID=55070849
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/976,190 Abandoned US20160208844A1 (en) | 2015-01-15 | 2015-12-21 | Crimped capped fastener |
US16/356,628 Active 2036-04-14 US11060548B2 (en) | 2015-01-15 | 2019-03-18 | Crimped capped fastener |
US17/373,132 Pending US20220003262A1 (en) | 2015-01-15 | 2021-07-12 | Crimped capped fastener |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/356,628 Active 2036-04-14 US11060548B2 (en) | 2015-01-15 | 2019-03-18 | Crimped capped fastener |
US17/373,132 Pending US20220003262A1 (en) | 2015-01-15 | 2021-07-12 | Crimped capped fastener |
Country Status (4)
Country | Link |
---|---|
US (3) | US20160208844A1 (ja) |
EP (1) | EP3045745B1 (ja) |
JP (1) | JP6771893B2 (ja) |
CN (1) | CN105805140B (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170261024A1 (en) * | 2014-09-23 | 2017-09-14 | A-Fax Limited | Pin |
USD1015862S1 (en) * | 2018-05-04 | 2024-02-27 | W Star Incorporée | Vehicle wheel nut |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109899367A (zh) * | 2019-04-17 | 2019-06-18 | 海盐宏茂五金制品有限公司 | 一种防松动紧固型法兰螺母 |
US20220325742A1 (en) * | 2021-04-08 | 2022-10-13 | Maclean-Fogg Company | Coated fastener body |
Family Cites Families (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US443799A (en) | 1890-12-30 | Top-prop nut | ||
US174766A (en) | 1876-03-14 | Improvement in capping wood-screws | ||
US1166722A (en) | 1914-07-27 | 1916-01-04 | Frank C Stanley | Safety attachment for shafts and mandrels. |
US1152960A (en) | 1914-12-02 | 1915-09-07 | Simon J Moloney | Screw. |
US1767184A (en) | 1928-04-04 | 1930-06-24 | Edward R Marbach | Ornamental prop device |
US3332211A (en) * | 1964-12-24 | 1967-07-25 | American Flange & Mfg | Cap applying apparatus |
US3460311A (en) * | 1965-07-22 | 1969-08-12 | American Flange & Mfg | Method of securing caps to containers |
US3638472A (en) * | 1970-01-30 | 1972-02-01 | Huck Mfg Co | Fastener installation and crimping tool |
US3834011A (en) * | 1971-02-04 | 1974-09-10 | Huck Mfg Co | Method of setting a threaded fastener |
US3960047A (en) | 1974-09-09 | 1976-06-01 | Cragar Industries, Inc. | Dual size lug nut |
US3998032A (en) * | 1976-03-04 | 1976-12-21 | Koebbeman Richard J | Bottle cap crimper |
US4123961A (en) * | 1976-04-01 | 1978-11-07 | Towne Robinson Fastener Company | Wheel nut with welded cap |
US4015503A (en) | 1976-05-03 | 1977-04-05 | Grand Machining Company | Capped wheel nut |
US4084460A (en) * | 1977-03-04 | 1978-04-18 | Garofalo Nicholas J | Hand held nut running and crimping power tool |
US4143578A (en) | 1977-05-27 | 1979-03-13 | Buell Industries, Inc. | Capped machine nut and method of manufacture |
US4669937A (en) * | 1981-06-01 | 1987-06-02 | Microdot Inc. | Capped nut |
IT1189689B (it) * | 1986-06-04 | 1988-02-04 | Alplast Snc | Attrezzo utilizzabile in macchine capsulatrici per l avvitura su contenitori di capsule a vite di materia plastica di un sigillo di garanzia |
US5026237A (en) * | 1990-01-24 | 1991-06-25 | Coors Brewing Company | Method and apparatus for crimping a container cap |
US5180266A (en) | 1992-04-30 | 1993-01-19 | Metal Flow Corporation | Threaded sheet metal decorative cap |
US6074148A (en) * | 1997-03-07 | 2000-06-13 | Industrial & Automotive Fasteners, L.L.C. | Wheelnut/cap assembly with insulating washer |
US5772377A (en) * | 1997-05-08 | 1998-06-30 | Maclean-Fogg Company | Capped wheel fastener |
US6102488A (en) * | 1998-02-26 | 2000-08-15 | Industrial & Automotive Fastners, L.L.C. | Torque angle limiting wheelnut |
DE19916860A1 (de) * | 1998-04-28 | 1999-11-04 | Mcgard Inc | Zweifachplattierte Befestigungselemente |
US6592314B1 (en) * | 2000-10-10 | 2003-07-15 | Industrial And Automotive Fasteners, Llc | Steel washer integral with nut/cap assembly |
US6957939B2 (en) * | 2001-04-05 | 2005-10-25 | Industrial And Automotive Fasteners, L.L.C. | Decorative capped wheel nut and method of assembly |
US6866457B2 (en) * | 2001-04-05 | 2005-03-15 | Industrial And Automotive Fasteners, L.L.C. | Decorative capped wheel nut or bolt assembly and method |
WO2004061316A1 (ja) * | 2002-12-26 | 2004-07-22 | Nishioka Byoura Co., Ltd. | 締結部取外し防止具 |
CN2663175Y (zh) * | 2003-10-08 | 2004-12-15 | 王建华 | 汽车车轮螺母 |
DE102006028577B4 (de) * | 2005-12-19 | 2023-03-30 | Winker Massivumformung Gmbh & Co. Kg | Mutter mit einem Mutternkörper und einer auf dem Mutternkörper gehaltenen Kappe |
US20080044254A1 (en) * | 2006-08-18 | 2008-02-21 | Wilson Larry J | Anti-theft fastener assembly |
DE102009031974A1 (de) * | 2009-07-01 | 2011-01-05 | Metallwarenfabrik Hermann Winker Gmbh & Co. Kg | Mutter |
DE102009032974A1 (de) * | 2009-07-14 | 2011-01-20 | Weber Maschinenbau Gmbh Breidenbach | Vorrichtung zum Aufschneiden von Lebensmittelprodukten |
KR101051513B1 (ko) | 2009-07-16 | 2011-07-22 | 삼성전기주식회사 | 전자종이 표시소자 및 그 제조방법 |
WO2011063099A1 (en) | 2009-11-19 | 2011-05-26 | Maclean-Fogg Company | Fastener with improved torque bearing surface |
KR200469410Y1 (ko) * | 2010-01-20 | 2013-10-10 | 삼진정공(주) | 휠너트 |
US8936423B2 (en) * | 2011-08-18 | 2015-01-20 | Maclean-Fogg Company | Plastic polymer covered fastener |
US9360040B2 (en) * | 2012-02-16 | 2016-06-07 | Maclean-Fogg Company | Polymer filled capped nut |
US9593707B2 (en) | 2013-12-27 | 2017-03-14 | Mcgard Llc | Fastener with protected decorative cap |
US9340065B2 (en) * | 2014-03-05 | 2016-05-17 | GM Global Technology Operations LLC | Turn limited wheel lug nut and nut cap |
CN203973486U (zh) * | 2014-06-25 | 2014-12-03 | 国网河北省电力公司衡水供电分公司 | 一种拉线更换辅助工具 |
-
2015
- 2015-12-21 US US14/976,190 patent/US20160208844A1/en not_active Abandoned
-
2016
- 2016-01-05 EP EP16150218.2A patent/EP3045745B1/en active Active
- 2016-01-14 CN CN201610026934.1A patent/CN105805140B/zh active Active
- 2016-01-15 JP JP2016006355A patent/JP6771893B2/ja active Active
-
2019
- 2019-03-18 US US16/356,628 patent/US11060548B2/en active Active
-
2021
- 2021-07-12 US US17/373,132 patent/US20220003262A1/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170261024A1 (en) * | 2014-09-23 | 2017-09-14 | A-Fax Limited | Pin |
US10711819B2 (en) * | 2014-09-23 | 2020-07-14 | Three Smith Group Limited | Pin |
USD1015862S1 (en) * | 2018-05-04 | 2024-02-27 | W Star Incorporée | Vehicle wheel nut |
Also Published As
Publication number | Publication date |
---|---|
US20220003262A1 (en) | 2022-01-06 |
US20190211866A1 (en) | 2019-07-11 |
EP3045745B1 (en) | 2020-05-20 |
CN105805140B (zh) | 2020-03-24 |
CN105805140A (zh) | 2016-07-27 |
JP2016133222A (ja) | 2016-07-25 |
US11060548B2 (en) | 2021-07-13 |
JP6771893B2 (ja) | 2020-10-21 |
EP3045745A1 (en) | 2016-07-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20220003262A1 (en) | Crimped capped fastener | |
US7981143B2 (en) | Linear fastener system and method for use | |
JP5687245B2 (ja) | 化粧キャップ付きホイールナットおよび組立方法 | |
US9328762B2 (en) | Pierce nut for high-strength steel plate | |
US10760610B2 (en) | Fastener | |
US20140152004A1 (en) | Oil Pipe Connection Device for a Hydraulic Brake | |
CN106351935A (zh) | 紧固件、紧固结构以及紧固方法 | |
EP3317551A1 (en) | Tightening screw having torque limiting cap | |
US9340065B2 (en) | Turn limited wheel lug nut and nut cap | |
EP2816244A1 (en) | Anti-theft locking device for vehicle wheels | |
US5015133A (en) | Universal nut | |
US9937746B2 (en) | Capped wheel fastener and method of assembly | |
KR20110080058A (ko) | 호스연결구의 조립방법 | |
US20110037256A1 (en) | Brake-line fastener | |
US9903403B2 (en) | Fastener and method of installing same | |
US8790057B2 (en) | Threaded fastener | |
JP3128498U (ja) | ボールポイント型レンチ | |
CN114630967A (zh) | 盲铆钉插入件、装有盲铆钉插入件的部件以及用于将其安装在部件开口中的方法 | |
EP3513082B1 (en) | Wheel nut | |
US8016533B2 (en) | Lock nut with low on/high off torque control | |
US20170305358A1 (en) | Integrated fastener for plastic automotive components | |
US11215216B2 (en) | Breakaway nut | |
EP1844951A1 (en) | Self-locking nipple and wheel spoke | |
EP3670939A1 (en) | Fastening device provided with a rotatable washer | |
CN201771912U (zh) | 车用缓冲构件的固定装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STPP | Information on status: patent application and granting procedure in general |
Free format text: FINAL REJECTION MAILED |
|
AS | Assignment |
Owner name: MACLEAN-FOGG COMPANY, ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WILSON, LARRY J.;REEL/FRAME:047641/0389 Effective date: 20180508 |
|
AS | Assignment |
Owner name: ARES CAPITAL CORPORATION, AS COLLATERAL AGENT, VIRGINIA Free format text: SECURITY INTEREST;ASSIGNOR:MAC LEAN-FOGG COMPANY;REEL/FRAME:047840/0218 Effective date: 20181221 Owner name: ARES CAPITAL CORPORATION, AS COLLATERAL AGENT, VIR Free format text: SECURITY INTEREST;ASSIGNOR:MAC LEAN-FOGG COMPANY;REEL/FRAME:047840/0218 Effective date: 20181221 |
|
AS | Assignment |
Owner name: BANK OF AMERICA, N.A., AS ABL COLLATERAL AGENT, WISCONSIN Free format text: SECURITY INTEREST;ASSIGNOR:MAC LEAN-FOGG COMPANY;REEL/FRAME:047848/0345 Effective date: 20181221 Owner name: BANK OF AMERICA, N.A., AS ABL COLLATERAL AGENT, WI Free format text: SECURITY INTEREST;ASSIGNOR:MAC LEAN-FOGG COMPANY;REEL/FRAME:047848/0345 Effective date: 20181221 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |
|
AS | Assignment |
Owner name: MACLEAN SENIOR INDUSTRIES, L.L.C., ILLINOIS Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL;ASSIGNOR:ARES CAPITAL CORPORATION;REEL/FRAME:061658/0161 Effective date: 20221011 Owner name: MACLEAN POWER, L.L.C., ILLINOIS Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL;ASSIGNOR:ARES CAPITAL CORPORATION;REEL/FRAME:061658/0161 Effective date: 20221011 Owner name: MAC LEAN-FOGG COMPANY, ILLINOIS Free format text: RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL;ASSIGNOR:ARES CAPITAL CORPORATION;REEL/FRAME:061658/0161 Effective date: 20221011 Owner name: MACLEAN SENIOR INDUSTRIES, L.L.C., ILLINOIS Free format text: PARTIAL RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL;ASSIGNOR:BANK OF AMERICA, N.A., AS ABL COLLATERAL AGENT;REEL/FRAME:061661/0798 Effective date: 20221011 Owner name: MACLEAN POWER, L.L.C., ILLINOIS Free format text: PARTIAL RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL;ASSIGNOR:BANK OF AMERICA, N.A., AS ABL COLLATERAL AGENT;REEL/FRAME:061661/0798 Effective date: 20221011 Owner name: MAC LEAN-FOGG COMPANY, ILLINOIS Free format text: PARTIAL RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL;ASSIGNOR:BANK OF AMERICA, N.A., AS ABL COLLATERAL AGENT;REEL/FRAME:061661/0798 Effective date: 20221011 |
|
AS | Assignment |
Owner name: MAC LEAN-FOGG COMPANY, ILLINOIS Free format text: TERMINATION AND RELEASE OF INTELLECTUAL PROPERTY SECURITY AGREEMENT;ASSIGNOR:BANK OF AMERICA, N.A.;REEL/FRAME:067536/0651 Effective date: 20240507 |
|
AS | Assignment |
Owner name: MAC LEAN-FOGG COMPANY, ILLINOIS Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE THE INCORRECT PATENT NO. FROM '6943154' TO --6952154-- PREVIOUSLY RECORDED AT REEL: 67536 FRAME: 651. ASSIGNOR(S) HEREBY CONFIRMS THE TERMINATION AND RELEASE OF INTELLECTUAL PROPERTY SECURITY AGREEMENT;ASSIGNOR:BANK OF AMERICA, N.A.;REEL/FRAME:067661/0905 Effective date: 20240507 |