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Publication numberUS20060010658 A1
Publication typeApplication
Application numberUS 10/519,116
PCT numberPCT/GB2003/002748
Publication dateJan 19, 2006
Filing dateJun 26, 2003
Priority dateJun 26, 2002
Also published asCA2491121A1, CN1665419A, DE60319086D1, DE60319086T2, EP1519662A1, EP1519662B1, EP1519662B8, WO2004002257A1
Publication number10519116, 519116, PCT/2003/2748, PCT/GB/2003/002748, PCT/GB/2003/02748, PCT/GB/3/002748, PCT/GB/3/02748, PCT/GB2003/002748, PCT/GB2003/02748, PCT/GB2003002748, PCT/GB200302748, PCT/GB3/002748, PCT/GB3/02748, PCT/GB3002748, PCT/GB302748, US 2006/0010658 A1, US 2006/010658 A1, US 20060010658 A1, US 20060010658A1, US 2006010658 A1, US 2006010658A1, US-A1-20060010658, US-A1-2006010658, US2006/0010658A1, US2006/010658A1, US20060010658 A1, US20060010658A1, US2006010658 A1, US2006010658A1
InventorsMark Bigley, Peter Graham, Gordon Burch, John Ransome
Original AssigneeMark Bigley, Peter Graham, Gordon Burch, John Ransome
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Snap fastener for use with fabrics
US 20060010658 A1
Abstract
A snap fastener for use with fabrics comprising a flange having a cyclindical wall extending axially therefrom, the wall comprising a plurality of circumferentially extending engaging portions each engaging portion being separated from the next by a circumferentially extending non engaging portion.
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Claims(14)
1. A male stud of a snap fastener comprising a flange with means of attaching said flange to fabric material; the flange having a cyclindical or annular shaped wall extending axially therefrom, the wall comprising a plurality of circumferentially extending engaging portions each engaging portion being separated from the next engaging portion by a circumferentially extending non engaging portion.
2. A male stud of a snap fastener according to claim 1 wherein at least one engaging portion extends radially outwards.
3. A male stud of a snap fastener according to claim 1 wherein the engaging portion is arcuate or parabolic in shape.
4. A male stud of a snap fastener according to claim 1 wherein the non engaging portion comprises a flat face.
5. A male stud of a snap fastener according to claims 1 wherein the non engaging portion comprises a recess.
6. A male stud of a snap fastener according to claim 5 wherein the recess is U-shaped, arcuate shaped or parabolic shaped.
7. A male stud of a snap fastener according to claim 1 wherein the outer face of the engaging portions are inclined at an angle β to the longitudinal axis of said wall where β is in the range 13 to 23.
8. A male stud of a snap fastener according to claim 7 where β is in the range 16 to 20, and preferably about 18.
9. A snap fastener comprising: flanged male and female members with means of attaching said male and female members to fabric material; the flange of the male member having a first cyclindical wall extending axially therefrom, the wall comprising a plurality of circumferentially extending engaging portions each engaging portion being separated from the next by a circumferentially extending non engaging portion, wherein the engaging portions are configured to snap fit within an annular groove defined in a second cylindrical wall of the female member.
10. A snap fastener according to claim 9 wherein the attaching means comprises a rivet or post member.
11. A snap fastener according to claim 10 wherein the post member is mushroom shaped.
12. A male stud of a snap fastener comprising a male engaging portion for cooperating with a female portion in use, the male portion comprising a radially protruding flange having a discontinuous outer curved surface.
13. A male stud of a snap fastener comprising a male, engaging portion for cooperating with a female portion in use, the male portion comprising a radially protruding flange with a front face that in use first engages said female portion and having regions of greater and lesser radial protrusion circumferentially spaced therein thereby to reduce the amount of the outer circumference of the flange front face that abuts said female portion in use.
14. A male stud of a snap fastener according to claim 1 wherein the end face, presented to a female portion in use, also comprises a plurality of circumferentially extending engaging portions each engaging portion being separated from the next by a circumferentially extending non engaging portion.
Description
  • [0001]
    The invention relates to a snap fastener for use with fabrics, especially those worn on the person or used in the home.
  • [0002]
    Snap fasteners comprising a male and female member have been used for many years on garments, bed linen and the like. More recently such fasteners have been made of resilient materials such as plastics. Typically, the male and female members each have attachment means that allow the members to be connected to fabric without any need for sewing. For example, the fabric may be sandwiched between a first and second discs, where the first disc forms part of the male or female member.
  • [0003]
    Such devices are particularly useful for temporarily connecting items of clothing that may become detached during storage or washing; for example, socks.
  • [0004]
    One problem with known snap fasteners is that they tend to rip the fabric to which they are attached when the male and female members are pulled apart, especially when they are used with stretch fabrics.
  • [0005]
    The invention seeks to avoid or at least mitigate the problems of the prior-art. In particular the invention seeks to provide a snap fastener that is less likely to damage the fabric to which it is attached when the fastener is undone.
  • [0006]
    According to a first aspect of the invention there is provided a male stud of a snap fastner comprising a flange with means for attaching to fabric material; the flange having a cylindrical wall extending axially therefrom, the wall comprising a plurality of circumferentially extending engaging portions each engaging portion being circumferentially separated from the next by a circumferentially extending non engaging portion.
  • [0007]
    According to a second aspect of the invention there is provided a snap fastner comprising: flanged male and female members with means of attaching these to fabric material; the flange of the male member having a first cylindrical wall extending axially therefrom, the wall comprising a plurality of circumferentially extending engaging portions each engaging portion being separated from the next by a circumferentially extending non engaging portion, the engaging portions configured to snap fit within an annular groove defined in a second cylindrical wall of the female member.
  • [0008]
    An embodiment of the invention will now be described, by way of example only, with reference to the following diagrammatic illustrations, in which:
  • [0009]
    FIG. 1 is a cross section of a male stud according to the invention;
  • [0010]
    FIG. 2 is a plan view of the male stud of FIG. 1;
  • [0011]
    FIG. 3 shows the male stud of FIG. 2 about to be snapped to a female member;
  • [0012]
    FIG. 4 shows a plan view of a female member according to the invention;
  • [0013]
    FIG. 5 shows a cross section along the lines A to A′ of FIG. 4
  • [0014]
    FIG. 6 is a plan view of attachment means for fixing the male stud and the female member to fabric; and
  • [0015]
    FIG. 7 is a cross section along lines A to A′ of the attachment means shown in FIG. 6.
  • [0016]
    FIGS. 1 and 2 show a male stud 10 according to the invention comprising a flange portion 12 and a generally cylindrical engaging portion 14. The flange portion 12 is generally disc shaped and has a central slightly tapered bore 16 the remaining annular part 18 of the flange having a plurality of circumferential grooves 20 on the underside 22. The bore 16 is tapered at an angle α to the axis of the bore 16, where α is typically 5. The topside 22 of the flange is integrally formed with the cylindrically engaging portion, which extends axially therefrom. The cylindrically engaging portion 14 comprises a plurality of circumferentially extending arcuate portions 26, each such portion being separated from the next by a flat faced portion 28. FIG. I shows five such arcuate and flat faced portions. The internal wall of the cylindrically engaging portion 14 comprises an un-tapered section 30 extending from the flange 12 and a tapered section 32 extending therefrom. This section 32 is tapered outwardly at an angle β to the axis of the cylindrically engaging portion 14, where β is typically 18. The central part of the external wall 34 of the cylindrically engaging portion also tapers outwardly at an angle β to the axis of bore 16; there being a curved, and preferably arcuate wall portion 36 between the inner and outer tapered walls of the cylindrically engaging portion 14.
  • [0017]
    A male stud according to the invention may be used with known female sockets. FIGS. 4 and 5 show such a socket 40 comprising a flange portion 42 similar in configuration to the flange portion 12 of the male stud described above. Flange portion 42 has a generally cylindrically extending female socket portion 44 dimensioned to snugly engage the circumferentially extending arcuate portions 26 of male stud 10.
  • [0018]
    FIG. 3 shows the male stud 10 as it is being engaged within female socket 40. Known male stud members having a continuous curved outer wall 34 may also engage such a socket. However, the flat portions 28 of the male stud according to the invention allow the force required to subsequently separate the male and female members to be controlled. This is achieved by varying the circumferential length of the flat portions 28 relative to the circumferentially extending arcuate portions 26 and also by varying the angle β. By this means this separation force can be chosen to be suitable for a particular fabric. This is especially advantageous when the fastener is being used with so called “stretch fabrics” such as LYCRA™.
  • [0019]
    In use, the male stud and female socket each need to be fixed to fabric by attachment means. FIGS. 6 and 7 show a suitable attachment means comprising a post 50 and head 52. Head 52 has a smooth top face 54 and an underface 56 with a plurality of larger spikes 58 and smaller spikes 60 protruding therefrom. Post 50 extends axially away from the underface 56 and has a tapered of spiked end 62. Thus, in use spike 62 of post 50 pierces the fabric to which it is attached such that this fabric is subsequently held sandwiched between the attachment means and the male stud or female socket by the engaging action of post 50 within the tapered bore 16 of male stud 10 or a similar bore in female socket 40.
  • [0020]
    While the male stud described above has 5 flat faces the number may vary; for example 7 faces may be used. Preferably, there will be an odd number of flat faces. This will result in a flat face diametrically opposite an arcuate portion; such an arrangement advantageously assists a “peeling action” during disconnection of the male and female members. However, while an odd number of flat and arcuate portions is preferred the invention may be used with an even number of flats and arcuate portions. While the arcuate portions are preferably true arcs of a circle, other curved shapes: for example parabolic portions are possible. Likewise while the flats are preferably simple flat surfaces other configurations are possible; for example a generally “U-shaped” recess between the arcuate portions. The important characteristic is that the flats have a shape that ensures that they do not significantly abut female socket portion 44 during connection. As explained above, this allows a reduced separation force, that can be selected by the designer to suit a particular fabric, compared with a conventional male stud.
  • [0021]
    The diameter D (see FIG. 2) of the engaging portion 34 of the male stud 10 may be 3 to 7 mm, and is preferably about 5 mm. The maximum diameter d (see FIG. 1) of tapered bore 16 of the male stud 10 may be 2 to 3 mm, and is preferably about 2.5 mm.
  • [0022]
    Snap fasteners according to the invention can be made from a variety of materials including plastics, Acetal™ resin such as DELRINR™ is particularly suitable. While angle β of the male stud is preferably about 18 values within the range 16 to 20 and indeed 13 to 23 are possible.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US4430777 *Sep 2, 1982Feb 14, 1984Tadashi TakedaSocket component for snap fastener
US4562624 *Nov 17, 1982Jan 7, 1986Nippon Notion Kogyo Co., Ltd.Snap fastener for use on garments
US4607415 *Nov 15, 1984Aug 26, 1986Nippon Notion Kogyo Co., Ltd.Button for garment
US4805273 *Dec 2, 1987Feb 21, 1989Scovill Fasteners Inc.Snap fastener for molding on to fabric and apparatus for making it
US5143500 *Feb 28, 1991Sep 1, 1992Itw PlastiglideSnap engaging fastener system for providing rotary motion
US5575043 *Jul 25, 1995Nov 19, 1996Candotti; RiccardoButton for clothing
US5644820 *Sep 8, 1995Jul 8, 1997Ho; Wen-LungCrown button of a cap
US5933929 *Jul 17, 1998Aug 10, 1999Ykk CorporationSnap button and method of attaching the same
US20020029444 *Jul 23, 2001Mar 14, 2002Lyle Michael A.Snap fastener
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US7830461Apr 19, 2006Nov 9, 2010Apple Inc.Light sensitive display
US7852417Oct 26, 2007Dec 14, 2010Apple Inc.Light sensitive display
US7872641Oct 25, 2007Jan 18, 2011Apple Inc.Light sensitive display
US7880733Oct 26, 2007Feb 1, 2011Apple Inc.Light sensitive display
US7880819Feb 1, 2011Apple Inc.Light sensitive display
US8044930Oct 26, 2007Oct 25, 2011Apple Inc.Light sensitive display
US8207946Jun 26, 2012Apple Inc.Light sensitive display
US8289429Oct 16, 2012Apple Inc.Image sensor with photosensitive thin film transistors and dark current compensation
US8441422May 14, 2013Apple Inc.Light sensitive display with object detection calibration
US8570449Sep 24, 2009Oct 29, 2013Apple Inc.Light sensitive display with pressure sensor
US8638320Jun 22, 2011Jan 28, 2014Apple Inc.Stylus orientation detection
US8928635Jun 22, 2011Jan 6, 2015Apple Inc.Active stylus
US9134851Sep 18, 2007Sep 15, 2015Apple Inc.Light sensitive display
US9176604Jul 27, 2012Nov 3, 2015Apple Inc.Stylus device
US9310923Jul 27, 2012Apr 12, 2016Apple Inc.Input device for touch sensitive devices
US20050231656 *Apr 16, 2004Oct 20, 2005Planar Systems, Inc.Image sensor with photosensitive thin film transistors and dark current compensation
US20060187367 *Apr 19, 2006Aug 24, 2006Adiel AbileahLight sensitive display
US20070109239 *Nov 8, 2006May 17, 2007Den Boer WillemIntegrated light sensitive liquid crystal display
US20080048995 *Oct 24, 2007Feb 28, 2008Planar Systems, Inc.Light sensitive display
US20080049153 *Oct 26, 2007Feb 28, 2008Adiel AbileahLight sensitive display
US20080049154 *Oct 26, 2007Feb 28, 2008Adiel AbileahLight sensitive display
US20080055295 *Oct 25, 2007Mar 6, 2008Planar Systems, Inc.Light sensitive display
US20080055496 *Oct 26, 2007Mar 6, 2008Adiel AbileahLight sensitive display
US20080055497 *Oct 26, 2007Mar 6, 2008Adiel AbileahLight sensitive display
US20080055498 *Oct 26, 2007Mar 6, 2008Adiel AbileahLight sensitive display
US20080062156 *Oct 25, 2007Mar 13, 2008Planar Systems, Inc.Light sensitive display
US20080062157 *Oct 25, 2007Mar 13, 2008Planar Systems, Inc.Light sensitive display
US20080066972 *Sep 18, 2007Mar 20, 2008Planar Systems, Inc.Light sensitive display
US20080084374 *Oct 24, 2007Apr 10, 2008Planar Systems, Inc.Light sensitive display
US20100013793 *Sep 24, 2009Jan 21, 2010Apple Inc.Light sensitive display with pressure sensor
US20100013794 *Jan 21, 2010Apple Inc.Light sensitive display with multiple data set object detection
US20100013796 *Sep 24, 2009Jan 21, 2010Apple Inc.Light sensitive display with object detection calibration
US20100020044 *Sep 28, 2009Jan 28, 2010Apple Inc.Light sensitive display with switchable detection modes
US20100059296 *Sep 18, 2007Mar 11, 2010Planar Systems, Inc.Light sensitive display
US20100302419 *Aug 9, 2010Dec 2, 2010Apple Inc.Image sensor with photosensitive thin film transistors and dark current compensation
US20100304117 *Dec 3, 2008Dec 2, 2010Jon Robert ScottMethod of formation of reinforcement mesh
WO2013126851A1 *Feb 23, 2013Aug 29, 2013Ykk CorporationFastener, fastening system and method of securing using fastening system
Classifications
U.S. Classification24/114.05
International ClassificationA44B1/32, A44B17/00
Cooperative ClassificationA44B17/0029, A44B17/0094, A44B17/0052, Y10T24/3685
European ClassificationA44B17/00M10, A44B17/00K, A44B17/00F