WO2009140648A1 - Fastener - Google Patents
Fastener Download PDFInfo
- Publication number
- WO2009140648A1 WO2009140648A1 PCT/US2009/044229 US2009044229W WO2009140648A1 WO 2009140648 A1 WO2009140648 A1 WO 2009140648A1 US 2009044229 W US2009044229 W US 2009044229W WO 2009140648 A1 WO2009140648 A1 WO 2009140648A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fastener
- gripping
- clamping member
- void
- crown
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 76
- 239000002184 metal Substances 0.000 claims abstract description 76
- 239000000758 substrate Substances 0.000 claims abstract description 47
- 239000011800 void material Substances 0.000 claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 27
- 230000007704 transition Effects 0.000 claims description 7
- 229910000639 Spring steel Inorganic materials 0.000 claims description 6
- SYOKIDBDQMKNDQ-XWTIBIIYSA-N vildagliptin Chemical compound C1C(O)(C2)CC(C3)CC1CC32NCC(=O)N1CCC[C@H]1C#N SYOKIDBDQMKNDQ-XWTIBIIYSA-N 0.000 claims 1
- 230000002250 progressing effect Effects 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000000750 progressive effect Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- NOQGZXFMHARMLW-UHFFFAOYSA-N Daminozide Chemical compound CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 description 1
- 241001397104 Dima Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
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
- F16B15/00—Nails; Staples
- F16B15/06—Nails; Staples with barbs, e.g. for metal parts; Drive screws
Definitions
- This invention relates to fasteners and more particularly to a fastener that is used to attach a laminar work piece to a metal substrate with the fastener being inserted through the utilization of an appropriate power tool.
- the present invention is an improvement over the fastener shown in U.S.
- Patent No. 6,659,700 and the fastener disclosed therein is illustrated as prior art in Figure 1.
- the need for a self-piercing construction fastener that can penetrate less dense laminar work piece materials (i.e. gypsum drywall, cementatious products, layered fiberglass and the like) and connect them to supporting walls of metal substrate framing (such as studs) made from light gage metal is well known.
- Such fasteners include a holding and clamping member that has resiliency and can move along a plane or between planes during the metal penetration process, and then return to its original form, thereby creating a combined friction and mechanical lock.
- ⁇ t comprises a fastener with a head 10 bent over at or near ninety (90) degrees; a flat elongated body 12 containing at least one, thinned, resilient tine 14 disposed within a void 15 in the body and twisted at an angle to the plane of the fastener body; small, equally spaced, equally formed teeth 16 upon the edges of the tine 14; and a sword-like point 18, all made from one-piece of thin sheet metal.
- the fastener body and tine follows the point through the less dense work piece material and then through a hole in the metal substrate opened by the point.
- the toothed-tine meeting the resistance of the substrate metal stud, rotates to a near flatness, parallel to the body plane. After passing through the metal substrate, the toothed-tine rotates back nearly to its original form, causing the teeth to produce a mechanical lock on the underside of the metal substrate.
- a head is formed by bending over material from the top of the fastener body into some form.
- Fastener inventions incorporating such heads are formed within a stamping operation via bending.
- the head may be a T, L or U shape, but all are created by the bending process. These forms generate sharp edges along at least two sides (the nature of bending to form a head from flat metal). These sharp edges cut through the top layers of less-dense laminar work pieces, thereby eliminating this head style from industry accepted standards. It has been found that a fastener head formed from bent- over tabs the thickness of the fastener material are unsuccessful in the softest laminar work pieces such as gypsum drywall.
- the head whether facing in one direction or in opposing directions, has sharp edges along all three sides and cut through the gypsum drywall top laminar work piece paper layer, thereby causing this form of a head to be unacceptable in the industry. Even if multiple layers of fastener material are bent over themselves, forming a radius at their furthest extension are used, the edges of the head still contain ninety-degree edges of such sharpness to cut the top paper layer of the drywall material. [0005] Another problem with prior art, self-piercing fasteners made from one-piece metal is the sword-like design of the point.
- tine teeth does not provide a smooth transition of the unwinding and then return (rotation) of the tine to the nearly original position when passing through the metal substrate pierced opening.
- Smaller teeth beginning at or near the bottom tine attachment do not allow proper unwinding, while these same teeth upward on the tine act as saw-teeth, cutting laterally into the metal substrate pierced slot instead of passing through the slot in an unwound position, thereby removing material from the slot at precisely the point where it is required for the individual tooth to provide a mechanical lock.
- one tooth may be within the pierced hole created by the self-piercing point when the fastener comes to a halt during installation.
- That tooth does not allow the tine to rotate back to nearly its prior position, and further does not allow the tooth on the underside of the metal stud to achieve a mechanical locking state underneath the bottom of the metal stud. Additionally, these smaller teeth provide insufficient bearing upon the underside of the metal substrate, required for maximum withdrawal resistance.
- a one piece fastener made from high strength steel for securing a work piece to a metal substrate which includes an elongated substantially flat body having first and second ends and first and second oppositely disposed faces and first and second side edges.
- a crown formed from substantially symmetrical halves extending outwardly from the first and second faces of the body, a piercing tip formed at the second end of the body for incrementally generating an opening in the metal substrate and at least one gripping and clamping member on the body to lock the work piece and the metal substrate together.
- FIG. 1 is a perspective view of a prior art fastener
- FIG. 2 is perspective view of the fastener of the present invention
- FIG. 3 is a front elevational view of a fastener constructed in accordance with the principals of the present invention.
- FIG. 4 is a side view of the fastener shown in Figure 2;
- FIG. 5 is a front elevational view showing the fastener of Figure 2 and an intermediate stage of construction
- FIG. 6 is a side view of Figure 5; [0018] FIG. 7 illustrates the progressive stamping which is utilized to form the fastener of the present invention.
- FIG .8 is a partial view of the fastener of the present invention illustrating the piercing point in greater detail
- FIG. 9 is a partial view of the fastener of the present invention illustrating the manner in which the clamping and the gripping member is formed with specific reference to the gripping teeth thereon;
- FIG. 10 illustrates the fastener of the present invention attaching a work piece to a metal stud which is of a first dimension
- FIG. 11 illustrates attaching a work piece to metal substrate with the work piece being of a smaller dimension
- FIG. 12 illustrates the formation of anti -nesting members on the fastener of the present invention.
- FIG. 13 illustrates an alternative embodiment of the fastener of the present invention including a gripping and clamping member which extends substantially the entire length of the void provided to receive such clamping and gripping member.
- the fastener 20 includes a fiat elongated body 22 having a first 24 end and second end 26.
- the body 22 includes a first flat surface or face 28 and second flat surface or face 30 which is on the opposite side of the flat elongated body 22.
- the body also includes first side edge 32 and second side edge 34.
- a crown 37 Disposed adjacent the first end 24 of the body is a crown 37 which is formed from first 36 and second 38 substantially symmetric halves extending radially outwardly from the first flat surface 28 and the second flat surface 30 respectively.
- the gripping and clamping member 42 includes a first tooth 44 which is formed by reducing the width of the gripping and clamping member from and initial root width as shown at "W" to a smaller root width as shown at 46. Displaced upwardly toward the crown from the first tooth 44 is a second tooth 48 which extends upwardly and outwardly from the second root width 46.
- the teeth 44 and 48 are utilized to clamp work pieces of different width to a metal substrate. Additional details of the various components of the fastener 20 as illustrated in Figure 2 are illustrated in the remaining figures and will be described in greater detail herein below.
- Figure 3 is a front elevational view of the fastener as illustrated in Figure 2 and Figure 4 is a side view thereof.
- the symmetrical halves 36 and 38 of the crown are interconnected by a first strap 50 and a second strap 52 disposed at the first and second side edges 32 and 34 respectively of the flat elongated body 22.
- the straps 50 and 52 are bent approximately 180 degrees at their midsection as is illustrated particularly in Figure 4 to cause the two symmetrical halves of the crown to become aligned so that they extend radially outwardly from the first and second flat faces 28 and 30.
- the outer periphery of the first and second symmetrical halves 36 and 38 of the crown are arcuately shaped as shown at 54 to eliminate any sharp edges which would tend to cut into the surface of the wall board which would be fastened to a metal stud as above described.
- the gripping and clamping member 42 is disposed within a void 54 formed substantially centrally of the flat body 22.
- the gripping and clamping member is formed intregally with the body 22 and is connected at its lower end 56 to the body 22 adjacent the second end 26 thereof but displaced from the piercing tip 40.
- the upper end 58 of the gripping and clamping member is connected adjacent, but spaced from the second end 24 of the body 22.
- the gripping and clamping member 42 also defines a void 60 extending from substantially adjacent the connection at its lower end 56 upwardly toward to a point adjacent the first tooth 44. As illustrated in Figures 2, 3 and 4 the gripping and clamping member 42 is twisted or rotated so that the teeth 44 and 48 extend outwardly from the first and second faces 28 and 30 of the body 22.
- the fastener of the present invention is formed from high strength material and preferably spring steel and is thin, that is formed in a manner such that it is thinner than the thickness of the body 22 so that it will tend to move toward a flat position within the void of the body 22 when it is inserted through the metal substrate but when it comes to rest will return to the position as illustrated in Figures 2, 3 and 4 thereby clamping the work piece to the metal stud.
- This twisting and untwisting of the gripping and clamping member is facilitated and also eliminates any tendency for the gripping and clamping member to break at its connection points 56 and 58 to the body.
- each head-half is formed with a smooth outer arcuate rim 54.
- a tab 74 attached to its bottom is press-fit into a mating hole 76 within the fastener body, thereby securing the fastener head-halves together.
- material in the form of other tabs may extend from each side of the head-halves.
- Such additional tabs can be used to further anchor the bent-over, mating head to body via compression (or "staking") a substantial portion of the tab through mating holes within the body.
- the two connecting bands may remain in their bent-over position (extending above the head) FIG. 3, or may be sheared off in another step and swaged together, now being flush with the head top.
- a solution for the problem of fastener point metal substrate or stud deflection described above is through incorporation of a point 78 that reduces this stud deflection during point penetration, thereby allowing it to return to its original form.
- a fastener point is a "step" point because there are multiple, upward steps to its form.
- the point begins with a narrow, angled piercing point 80 with straight sides 82 and 84, stepping outward to progressively wider point planes 86 and 88.
- Each step has an angled transition 90, 92 from the last step to the next wider step.
- the transition may or may not beveled as shown at 94, 96 for sharpness of cutting.
- each step is parallel to the sides 32, 34 of the fastener.
- the side edges of each step in the piercing point 78 may be slanted inwardly toward the longitudinal axis 98 of the body as shown at 100, 102 and allow the metal substrate to return to its original position between steps of penetration by the point.
- the purpose of these steps is to allow penetration of the metal incrementally.
- the angled and narrow lead point introduces initial point penetration of the metal via minimum width. Then the sides of the point, parallel to the body or slanted inwardly, follow through the hole created by the initial penetration without causing any further deflection of the metal.
- This internal void 60 creates a fork at the attachment site, creating two legs 108, 110.
- these legs 108, 110 act as independent torsion bars, twisting different arcs and upon different planes. This reduces the stress upon the attachment area 106 and eliminates the problem of failure of the body 104 attachment.
- Fig. 12 the problems incurred through use of numerous, small, equally spaced, equally formed gripping teeth is successfully addressed by providing only two or three teeth at pre-set distances from the fastener head, with distances of a smooth (no teeth) reduced clamping and gripping member root between teeth.
- the teeth being of greater distance apart than those of the prior art, can now be formed wider and taller, thereby increasing their shear strength while providing greater bearing surface upon the pierced metal substrate underside, resulting in greater withdrawal resistance.
- the teeth are of different shape for the bottom tooth 44(thicker work piece) as opposed to the upper (thinner work piece) tooth 48.
- the bottom tooth 44 is made from the largest width of the clamping and gripping member body 104 root area, then by cutting perpendicular to the sides of the body 104 into the vertical plane of the body 104, thereby reducing body 104 root width.
- the far outside 106, 108 of the subsequent opposing ledges forming the teeth project outward slightly from the body 104 root width, and upward, providing a slight arc (cupped) shape to the top of the tooth substantially perpendicular to the body 104 sides and a curved terminus. This aids in directing withdrawal forces towards the ends of the teeth.
- the upper tooth 48 begins its bottom body 104 connection at the now reduced root 110 progressing outward acutely to radius ends 112, 114 that turn inward nearly perpendicular to the fastener body 22 sides, until its connection with the body 104 root.
- This construction of the tooth 48 also provides a slight arc (cupped) shape to the top of the tooth substantially perpendicular to the body 104 sides and a curved terminus.
- the first tooth 44 Io enter the pierced hole within the metal substrate is pre-set for a thicker work piece (i.e. 5/8" or %") as shown in Figure 10.
- the upper, second tooth 48 is pre-set for thinner work piece (i.e. W or 3/8") as shown in Figure 11, then the first, bottom tooth 44 passes through the pierced hole in the metal substrate, lhen the reduced body 104 root, and then the acute angle of the second tooth 48 bottom encourages rotation of this second tooth.
- the radius ends of this second tooth aid in "finding" and passing through the metal substrate pierced hole.
- the top of this tooth 48 (perpendicular to the body edges) also has a slight arc
- This second style of tooth and reduced, smooth body 104 root can be replicated above the second tooth if an even thinner work piece is desired to be fastened.
- the presiding rule is that the distance of the smooth, reduced body 104 root between teeth must be at minimum the distance of the metal thickness and the distance of the extruded metal 116, 118 formed during point penetration as seen in Figs. 10 and 11.
- a solution for the problem of fastener nesting is found through forming anti- nesting tabs 120, 122, 124 and 126 within the void 54 (FIG. 12).
- conventional tooling used in progressive stamping requires a minimum thickness in order to maintain its integrity during the stamping process, a profile that would stamp the form of anti-nesting tabs that extended into the area of the void 54 is not currently viable. Therefore, the tabs must be formed via thinning and extruding body material into the void area. Material for this thinning and extruding are not available from the clamping and gripping member as this member has already been thinned to such extent as to provide no further material. Additionally, any protrusion along the body 104 would impede its performance.
- a toothed clamping and gripping member of the type described above with a void extended upward the majority of the distance of the body 104 length is shown in Fig. 13.
- the design of this body 104 includes a central void 128 creating two legs. When the body 104 is rotated during installation, these legs have greater "moment", act as independent torsion bars, twisting different arcs and upon different planes, providing greater resiliency, thereby properly rotating within thinner and softer materials.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Insertion Pins And Rivets (AREA)
- Connection Of Plates (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200980117502XA CN102027245B (en) | 2008-05-15 | 2009-05-15 | Fastener |
CA2725466A CA2725466A1 (en) | 2008-05-15 | 2009-05-15 | Fastener |
EP09747729.3A EP2283240A4 (en) | 2008-05-15 | 2009-05-15 | Fastener |
AU2009246103A AU2009246103A1 (en) | 2008-05-15 | 2009-05-15 | Fastener |
JP2011509777A JP2011521184A (en) | 2008-05-15 | 2009-05-15 | Fastener |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5338908P | 2008-05-15 | 2008-05-15 | |
US61/053,389 | 2008-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009140648A1 true WO2009140648A1 (en) | 2009-11-19 |
Family
ID=41319083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2009/044229 WO2009140648A1 (en) | 2008-05-15 | 2009-05-15 | Fastener |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2283240A4 (en) |
JP (1) | JP2011521184A (en) |
CN (1) | CN102027245B (en) |
AU (1) | AU2009246103A1 (en) |
CA (1) | CA2725466A1 (en) |
WO (1) | WO2009140648A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2740505A (en) * | 1952-09-22 | 1956-04-03 | Tinuerman Products Inc | Joint for roofing, wall, floor, or the like |
US6659700B1 (en) * | 1999-11-29 | 2003-12-09 | Evening Star International, Inc. | Metal piercing fastener |
US6817818B2 (en) * | 2000-11-28 | 2004-11-16 | Evening Star International, Inc. | Metal piercing fastener with optimally resilient securing member |
US7118315B2 (en) * | 2005-01-24 | 2006-10-10 | Joker Industrial Co., Ltd. | Spike nail structure |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5078865U (en) * | 1973-11-22 | 1975-07-08 | ||
US4765788A (en) * | 1987-01-09 | 1988-08-23 | Eustathios Vassiliou | Wall fastener |
US20060228192A1 (en) * | 2004-02-26 | 2006-10-12 | Evening Star International, Inc. | Fastening member |
US20080089760A1 (en) * | 2006-10-17 | 2008-04-17 | Yao Chun I | Fastener device for plasterboard |
-
2009
- 2009-05-15 WO PCT/US2009/044229 patent/WO2009140648A1/en active Application Filing
- 2009-05-15 CA CA2725466A patent/CA2725466A1/en not_active Abandoned
- 2009-05-15 AU AU2009246103A patent/AU2009246103A1/en not_active Abandoned
- 2009-05-15 CN CN200980117502XA patent/CN102027245B/en not_active Expired - Fee Related
- 2009-05-15 JP JP2011509777A patent/JP2011521184A/en active Pending
- 2009-05-15 EP EP09747729.3A patent/EP2283240A4/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2740505A (en) * | 1952-09-22 | 1956-04-03 | Tinuerman Products Inc | Joint for roofing, wall, floor, or the like |
US6659700B1 (en) * | 1999-11-29 | 2003-12-09 | Evening Star International, Inc. | Metal piercing fastener |
US6817818B2 (en) * | 2000-11-28 | 2004-11-16 | Evening Star International, Inc. | Metal piercing fastener with optimally resilient securing member |
US7118315B2 (en) * | 2005-01-24 | 2006-10-10 | Joker Industrial Co., Ltd. | Spike nail structure |
Non-Patent Citations (1)
Title |
---|
See also references of EP2283240A4 * |
Also Published As
Publication number | Publication date |
---|---|
CN102027245A (en) | 2011-04-20 |
AU2009246103A1 (en) | 2009-11-19 |
CN102027245B (en) | 2012-11-21 |
EP2283240A4 (en) | 2014-04-02 |
JP2011521184A (en) | 2011-07-21 |
CA2725466A1 (en) | 2009-11-19 |
EP2283240A1 (en) | 2011-02-16 |
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