Releasable interlocking fastening devices

Abstract

A releasable interlocking device comprising a pair of interactive plates, for fastening to apparel utilizing a system of two interactive plates which when brought together utilizes the thickness of the apparel and stud of a male plate to engage through the lips of the female plate to snap fit and lock without damage to the aforesaid apparel.

Claims

1. A method to releasably fasten an event identification number to apparel, the method comprising: obtaining a releasable interlocking device specifically adapted to fasten the event identification number to apparel, the device comprising: a female plate with a planar first surface and an arcuate second surface, the female plate including a central recess in the second surface and a central orifice at the first surface, wherein the central orifice opens into the central recess; and a male plate with an integral stud that protrudes from a planar surface and includes an overlapping stud head; inserting the stud head through a hole in the event identification number positioned adjacent the apparel; and using the stud head to push the apparel through the central orifice in the female plate, such that the stud head and apparel are received in the central recess of the female plate as the stud extends through the central orifice, to fasten the event identification number to the apparel.

2. A method according to claim 1, wherein the central orifice at the second surface is circular.

3. A method according to claim 1, wherein the central orifice at the second surface is non-circular.

4. A method according to claim 1, wherein the central recess has an opening at the second surface and wherein the central orifice is offset relative to the opening at the second surface.

5. A method according to claim 1, wherein the female plate includes a peripheral edge having a curved first part and a straight second part that extends along a chord of the curved first part.

6. A method according to claim 1, wherein the central orifice of the female plate is a non-circular central orifice defined by a shaped lip, which flexes when the stud of the male plate and apparel are presented for fastening in the central recess.

7. A method according to claim 1, wherein the central orifice of the female plate is defined by a shaped lip, which flexes when the stud of the male plate and apparel are presented for fastening in the central recess.

8. A method to releasably fasten a releasable interlocking device to apparel, the method comprising: obtaining the releasable interlocking device, the device comprising: a female plate with a planar first surface and an arcuate second surface, the female plate including a central recess in the second surface and a central orifice defined by a shaped lip at the first surface, wherein the central orifice opens into the central recess; and a male plate with an integral stud that protrudes from a planar surface and includes an overlapping stud head; and using the stud head to push the apparel through the central orifice in the female plate, thereby engaging and lip of the female plate with the stud head and apparel, causing the lip to flex as the stud head and apparel are received in the central recess of the female plate, to fasten the releasable interlocking device to the apparel.

9. A method according to claim 8, wherein the central orifice at the second surface is circular.

10. A method according to claim 8, wherein the central orifice at the second surface is non-circular.

11. A method according to claim 8, wherein the central recess has an opening at the second surface and wherein the central orifice is offset relative to the opening at the second surface.

12. A method according to claim 8, wherein the female plate includes a peripheral edge having a curved first part and a straight second part that extends along a chord of the curved first part.

13. A method according to claim 8, wherein the female plate comprises a circular central orifice defined by a shaped flexible lip, which friction-flexes when the stud of the male plate and apparel are presented for fastening in the central recess.

14. A releasable interlocking device specifically adapted to fasten an event identification number to apparel, the device comprising: a female plate with a planar first surface and an arcuate second surface, the female plate including a central recess in the second surface and a central orifice defined by a lip at the first surface, the female plate has a peripheral edge and the arcuate second surface is bounded by the peripheral edge; and a male plate with an integral stud head that protrudes from a planar surface and includes an overlapping stud head; wherein the stud head is sized and configured to pass through a hole in the event identification number positioned adjacent the apparel and to push a portion of the apparel covering the stud head through the central orifice in the female plate, thereby disposing the stud head and the portion of apparel in the central recess of the female plate and disposing another portion of the apparel between the first surface of the female plate and the planar surface of the male plate, to fasten the event identification number to the apparel.

15. A releasable interlocking device according to claim 14, wherein the central orifice is offset relative to the central recess at the second surface.

16. A releasable interlocking device according to claim 14, wherein the central recess has a circular opening at the second surface.

17. A releasable interlocking device according to claim 16, wherein the central orifice has a non-circular shape, and the central orifice is offset relative to the circular opening at the second surface.

18. A releasable interlocking device according to claim 14, wherein a peripheral edge of the female plate includes a curved first part and a straight second part.

Description

DRAWINGS

(1) FIG. 1 is an isometric projection view of a female plate of a releasable interlocking device according to the present invention;

(2) FIG. 2 is an isometric projection view of a male plate of a releasable interlocking device according to the present invention;

(3) FIG. 3 is an exploded isometric projection view of the female and male plates shown in FIGS. 1 and 2, respectively, together with an event identification number and a competitor's or participant's apparel;

(4) FIG. 4a is a third angle projection showing a top plan and cross sectional view of the female and male plates shown in FIGS. 1 and 2, respectively, with the stud head of the male plate enveloped by fabric from a competitor's or participant's apparel, extending through a hole in the event identification number and before being snap-fitted into the offset elliptically shaped orifice of the female plate;

(5) FIG. 4b is a third angle projection showing a top plan and cross sectional view of the female and male plates shown in FIGS. 1 and 2, respectively, with the stud head of the male plate snap-fitted into the offset elliptically shaped orifice of the female plate; and

(6) FIG. 5 is detailed exploded isometric projection views showing the assembly sequences of the releasable interlocking fastening device according to the present invention.

SPECIFIC DESCRIPTION

(7) FIG. 1 shows a female plate 1 comprising an offset elliptically shaped orifice 5a with narrow ledge 5b (or non-flexible lip) traversing the inside perimeter of the central recess 12 in the female plate until it meets a flexible lip 6 which is characterised by having a more substantial ledge. Featured on the outside surface of the female plate 1 can be a form of identification, which is typically molded into the surface, or printed on the surface, or molded in relief. It will be appreciated that such a female plate shown in FIG. 1 may be of any shape. According to one aspect of the present invention, the female plate 1 has a peripheral edge 9 that preferably includes a circular first part and a straight second part that extends along a chord 13 of the circular first part.

(8) FIG. 2 shows a male plate 2. Molded at right angles to the inside surface of the male plate 2, and typically positioned in its centre, is a tapered stud 3, the end of which features an overlapping hemi-spherical head 4, which may be partly domed. The male plate 2 may be of any shape.

(9) FIG. 3 shows an exploded assembly where the female plate 1 is shown positioned inside clothing apparel 7. In order to push and lock male plate 2 into the female plate 1, and thus secure the event identification number 8, the stud 3 is pushed through a typical hole in the event identification number 8 before being offered up against the apparel 7. As a result, the stud 3 with apparel sleeved over it becomes exposed ready for the female plate 1 to snap-fit over the stud head 4 to secure the event identification number 8 by locking into the elliptically shaped orifice 5a by means of the flexible lip or vane 6 molded around the inside surface of the orifice.

(10) FIG. 4a shows the orthographic projection of stud head 4 pushed through the hole in the event identification number 8 and before the female plate 1 is engaged. The female plate 1 includes a peripheral edge 9. The female plate 1 includes a planar first surface 14 and an arcuate or domed second surface 15. The planar first surface 14 and the arcuate second surface 15 join at approximately the peripheral edge 9. The arcuate second surface 15 is bounded by the peripheral edge 9. The female plate 1 includes a central recess 12 in the second surface 15 and a central orifice 5a defined by a lip 5b, 6 at the first surface 14. The central orifice 5a opens into the central recess 12. The central recess 12 may have a circular or non-circular opening at the second surface 15.

(11) FIG. 4b shows the stud head 4 along with apparel 7 engaged with the female plate 1. The stud head 4 has been guided into position in the direction of the arrow where the flexible lip or vane 6 has flexed to allow the stud head past. The flexible lip or vane 6 has then flexed back into position under the stud head 4 to snap-fit and secure the event identification number 8 to the apparel 7.

(12) In FIG. 5, stage one of the three stage assembly sequence features the male plate 2 being offered in the direction of the arrow towards the event identification number 8. Stage two of the assembly sequence features the female plate 1 being offered in the direction of the arrow to locate over stud head 4. Stage three of the assembly sequence features the stud head 4 snap-fitted over the flexible lip or vane 6 of the female plate 1, thereby securing the event identification number 8 to the apparel 7.

(13) EP1634508 makes no allowance for differences in material thicknesses of an athlete's apparel. Such allowance for material thickness, although small, is essential to provide a snap fit of the male and female plates and to provide a definite physical or audible indication of connection to the wearer. If this were not the case, as in EP1634508, there may be occasions when an athlete would assume a connection has been made only to be disappointed mid-way through a race, for example, when the event identification number comes adrift. In the present invention this allowance is provided for by the flexible lip or vane 6, which adjusts by flexing to make allowance for varying thicknesses, folds or creases of typical apparel and participation numbers worn for sporting activities and thus facilitates a positive snap-fit connection, indicating to the athlete audibly, or in a tactile manner, or both, that a secure connection has been made.

(14) By contrast with EP1634508, the device of the present invention may have a flexible lip or vane 6 opposing a non-flexible solid edge or lip 5b that define the elliptically shaped orifice 5a kin the female plate 1, and a male plate 2 with a stud 3 and a stud head 4.