Fastening Device

1. Field of the Invention

This invention most generally relates to a two part device to fasten together a plurality of sheets of materials, such as for example paper, which may have but need not have previously made holes in them. The device is composed of plastic, metal or other similar material which is resilient but form retaining. The concept used to provide the snap fastening feature is the deformation of an ellipse or oval into a circle when the stud/male component of the fastener is pressed into the socket/female component which component has an elliptically shaped or oval shaped opening until the fastener is used. The closing of the fastener causes the deformation of the ellipse/oval into an approximate circle and the stresses created provide the forces necessary to keep the fastener securely together providing the means for holding together the articles being attached to each other such as for example papers, items of fabric, shoe-top parts, etc.. The stud and socket components may be adapted to have a plurality of interengagement discs on the stud component and at least one recess within the aperture of the socket component which recess cooperates with one of the discs of the stud component to result in the interengagement of the two components when the stud component is inserted into the socket component aperture. Where there is more than one recess in the aperture of the socket component each of the recesses may interengage with one of the discs of the stud component. The resulting interengagement will be adjustable in that the stud portion will be more or less into the aperture and as the number of disc/recess interengagements increases so do the security of the connection of the two components increase. There may also be two "stud components" which may be connected together end-to-end using a socket component adapted to interengage with each of the two stud components. The end-to-end interengagement may be made and released by the one hand deformation of the socket component-that is the changing of the aperture from ellipse to oval by squeezing parallel to the major axis and then releasing allowing the aperture to tend toward an elliptical shape which results in the engagement of the two stud components. Release is accomplished by simply squeezing along the major axis causing deformation of the aperture to the circular/oval cross section allowing the dissengagement of the stud components.

2. Description of the Prior Art

Presently there is nothing available that permits the attachment of two components and the release of such attached components both steps being achievable using the squeezing or pinching forces on only the periphery of a so called socket component and exertable with the use of one hand; more specifically the use of the fingers of one hand. The invention disclosed herein is based upon the deformation by a substantially cylindrical shaped member of an oval or elliptically cross-sectioned aperture which results in forces, due to the deformation and due to the characteristics of the material in which the aperture in located, which cause two components, a stud component and a socket component, to interengage and the interengagement can be caused to be released by the simple squeezing or pinching of only the socket component using the fingers of one hand. In contrast, the prior art devices require pressure in the direction which is opposite to the direction of the insertion force and very importantly they require access to both components used in the clamping system. The fastener of the instant invention can thus be engaged and disengaged having access to only the socket component.

The following United States Patents have been reviewed relative to the invention disclosed and claimed herein.

U.S. Pat. No. 3,530,550 to White discloses a clamp composed of mating discs for engaging pliant sheet material, such as for fastening baby diapers without the use of pins or the like, and interengaging members provided on the discs for holding them together until released by pressure. An interconnecting flexible strap holds the discs together when they are not in clamping engagement. The opposed mating discs are frictionally held together when in clamping position and released by finger and thumb pressure of the user in a direction along the aperture axis. White relies on the material characteristics to provide the means for disengagement of 22 from 26.

U.S. Pat. No. 4,825,516 to Ackermann et al, teaches a snap-fastener comprising stud and socket components. This invention teaches the notion of placing a pliant substrate of material in such a position so that when the stud and socket components are closed they "pinch" the material therebetween.

The U.S. Pat. Nos. 3,626,955 to Greenwood; 1,276,030 to Adler; 3,039,471 to Church; 2,583,224 to McDonald; and 2,590,175 to Hajdu were also reviewed.

The present invention as disclosed and claimed herein has clear and unobvious advantages over all of the prior art known to the Applicant.

The present invention in it's most simple form or embodiment is directed to at least a two part or component fastening device or apparatus wherein reliance is on the deformation of an oval/ellipse shaped aperture which deformation results from the insertion of a stud component into the aperture which is formed within a socket component. The present invention permits the attachment of two components and the release of such attached components both steps being achievable using the squeezing or pinching forces on only the periphery of a so called socket component and exertable with the use of one hand; more specifically the use of the fingers of one hand. More particularly, the invention disclosed herein is very simply based upon the deformation by a substantially cylindrical shaped member of an oval or elliptically cross-sectioned aperture which results in forces, due to the deformation and due to the characteristics of the material in which the aperture in located, which cause two components, a stud component and a socket component, to interengage and the interengagement can be caused to be released by the simple squeezing or pinching of only the socket component using the fingers of one hand. The stud and socket components may be adapted to have a plurality of interengagement discs on the stud component and at least one recess within the aperture of the socket component which recess cooperates with one of the discs of the stud component to result in the interengagement of the two components when the stud component is inserted into the socket component aperture. Where there is more than one recess in the aperture of the socket component each of the recesses may interengage with one of the discs of the stud component. The resulting interengagement will be adjustable in that the stud portion will be more or less into the aperture and as the number of disc/recess interengagements increases so do the security of the connection of the two components increase. There may also be two "stud components" which may be connected together end-to-end using a socket component adapted to interengage with each of the two stud components. The end-to-end interengagement may be made and released by the one hand deformation of the socket component-that is the changing of the aperture from ellipse to oval by squeezing parallel to the major axis and then releasing allowing the aperture to tend toward an elliptical shape which results in the engagement of the two stud components. Release is accomplished by simply squeezing along the major axis causing deformation of the aperture to the circular/oval cross section allowing the dissengagement of the stud components. The fastener of the instant invention can thus be engaged and disengaged having access to only the socket component.

A primary object of the invention is to provide a fastening device comprising: a stud component; a socket component fabricated using material which is resilient but form retaining having a dimensionally deformable aperture therein adapted to receive and interengage the stud component when the stud component is inserted into the socket component. The stud component and the socket component are adapted to clamp material between them when the stud component is inserted into the socket component and/or when the socket component aperture is deformed from an ellipse to a circle and placed over and onto the stud component. The stud component comprises a body portion, a substantially cylindrical shaped stud member projecting therefrom and means for deforming the aperture causing the aperture to receive and interengage the stud component when the stud component is inserted into the socket component. The stud and said socket component are thus interconnected. Also provided is a plurality of interengaging means integral with and positioned along stud member, each adapted to cooperate with the socket component to interengage the stud and the socket components. The socket component is adapted to matingly cooperate with at least one of the interengaging means of the stud member. The socket component aperture has interior walls, a major axis dimension and a minor axis dimension. The major axis dimension is greater than the minor axis dimension. The aperture axes dimensions are deformable so that the minor axis dimension increases as the major axis dimension decreases upon insertion and removal of the stud component into and from the socket component.

Another primary object of the present invention is to provide the fastening device as above described wherein the interengaging means comprises appropriately treated surfaces of the stud member and the interior walls defining the aperture are such that stud and socket interengagement results from friction forces between tangential contacting areas of the treated surfaces and the interior walls when the stud component is deformingly inserted into the socket component. The forces are substantially created by the deformation of the aperture and the resilience of the material.

Yet another primary object of the present invention is to provide the fastening device as described above wherein the means for deforming the aperture comprises an appropriate taper of the aperture interior walls so that the minor axis dimension is increased and the major axis dimension is decreased causing the aperture to admit the stud member thus interengaging the stud and the socket component. The stud component may be fabricated using material which is resilient but form retaining.

A particular object of the present invention is to provide the fastening device as described above wherein the interengaging means comprises: a plurality of disc interengaging means integral with and distributed along the stud member between the body portion and protruding end of the stud member. Each of the disc interengaging means has an inner and an outer diameter and each inner diameter is greater than the outer diameter and greater than the stud diameter. The spacing between adjacent discs is not less than a dimension which is adequate to permit the interengaging of the stud and the socket components. Socket component adapted to have at least one means for engagement which matingly cooperates with each of said plurality of interengaging means of said stud component, said means for engagement matingly cooperating with at least one of said plurality of interengaging means.

The socket component is adapted to have at least one means for engagement which matingly cooperates with each of the plurality of interengaging means of the stud component. The means for engagement matingly cooperates with at least one of the plurality of disc interengaging means. The stud and socket interengagement results from forces between tangential contacting areas of each of the plurality of the disc interengaging means and the means for engagement of the socket component when the stud component is deformingly inserted into the socket component causing deformation of the aperture and also when the socket component is placed onto the stud component. The forces are created by the deformation of the aperture and the resilience of the material.

A more particular object of the present invention is to provide the fastening device as described above wherein the means for deforming the aperture comprises an appropriate thickness dimension and inner and outer diameter relationship of the disc interengaging means providing an adequate taper to cause the aperture deformation upon inserting of the stud component and wherein the stud component is fabricated using material which is resilient but form retaining. Further, there is provided a means for flexibly connecting the stud component to the socket component.

An object of the present invention is to provide a fastening device comprising: a stud component having a body portion, a substantially cylindrical shaped stud member with a vertical length and a stud diameter and extending substantially vertically from a first inner surface and a disc interengaging means integral with and at the protruding end of the stud member. The disc interengaging means has an inner and an outer diameter the inner diameter being not less than the outer diameter and greater than the stud diameter. A socket component is fabricated using material which is resilient but form retaining adapted to interfit and interengage with the stud component, and having an arcuate interior aperture surface defining an aperture through the socket component with a vertical aperture axis substantially in parallel alignment with the stud member. The aperture having a vertical length not greater than the stud member length, a minor axis having a dimension greater than the outer diameter of the disc interengaging means and not greater than the stud diameter, and a major axis dimension greater than and orthogonal to the minor axis. One-half the sum of the major and minor axes dimensions being greater than the inner diameter and both the axes orthogonal to the vertical aperture axis. The aperture axes dimensions are deformable so that the minor axis dimension increases as the major axis dimension decreases upon insertion and removal of the stud component into and from the socket component. The stud component and the socket component adapted to clamp material between them when the stud component is inserted into the socket component.

Another object of the present invention is to provide the fastening device as described above wherein the stud component is fabricated using material which is resilient but form retaining and further, the socket component is adapted to have a means for engagement which matingly cooperates with the disc interengaging means of the stud component. The stud and socket interengagement results from forces between tangential contacting areas of the disc interengaging means and the means for engagement of the socket component when the stud component is deformingly inserted into the socket component causing deformation of the aperture. The forces created by the deformation of the aperture and the resilience of the material. Additionally, there may be provided means for flexibly connecting the stud component to the socket component.

A basic object of the present invention is to provide a method for engageably and releasably attaching together two components, the stud component and the socket component of the fastening device as above described. The method comprises the steps of: deformingly inserting the cylindrical shaped stud member having interspersed thereon a plurality of interengaging means, into the aperture causing the aperture to deform to receive the cylindrical shaped stud member. Each of the components is adapted with cooperating, interfitting, interengaging means. The socket component is adapted to have at least one means for engagement which matingly cooperates with each of the plurality of interengaging means of the stud component. The means for engagement matingly cooperates with at least one of the plurality of interengaging means when the stud component and the socket component are attached. The deformation of the aperture and the resilient material provide forces which cause the interengaging means to interengage the stud and the socket components. Additionally, squeezing or pinching the socket component in a manner so as to deform the aperture and release the forces thus releases the interengaging means. The aperture deformation is from a substantially non-cylindrical aperture to an aperture which is sized to allow the removal of the stud component from the socket component. The method may further comprise the clamping of substantially flat material between the socket component and the stud component when the stud component is inserted into the socket component.

It is yet another object of the invention to provide an improved fastening device comprising a stud component, the stud component comprising a body portion and a substantially cylindrical shaped stud member projecting therefrom; a socket component fabricated using material which is resilient but form retaining having a dimensionally deformable substantially elliptical shaped aperture therein adapted to receive and interengage the stud component when the stud component is inserted into the socket component and/or when the socket component is placed onto the stud member. The stud component and the socket component may be adapted to clamp material between them when the stud component is inserted into the socket component. Each of the components are adapted with cooperating, interfitting, interengaging means, to interengage the stud and the socket components. The socket component aperture has interior walls, a major axis dimension and a minor axis dimension. The major axis dimension is greater than the minor axis dimension and the aperture axes dimensions are deformable so that the minor axis dimension increases as the major axis dimension decreases upon inserting and extracting of the stud component into and from the socket component and upon squeezing of the socket component along a direction parallel to the major axis and perpendicular to the minor axis of the elliptical shaped aperture. The interengagement of the socket component with the stud component occurs only at both ends of the minor axis when the stud component is in interengagement with the socket component. The improvement comprises: the stud member having interspersed thereon a plurality of interengaging means and the socket component adapted to have at least one means for engagement which matingly cooperates with each of the plurality of interengaging means of the stud component. The means for engagement matingly cooperates with at least one of the plurality of interengaging means when the stud component is inserted into the socket component and/or when the socket component is placed onto the stud member thereby interconnecting the stud and the socket component.

A still further object of the present invention is to provide a fastening device comprising: a first stud component having a substantially cylindrical shaped first stud member with a vertical length and a first stud diameter, at least one first stud component interengaging means integral with and appropriately located along the first stud member; a second stud component having a substantially cylindrical shaped second stud member with a vertical length and a second stud diameter, at least one second stud component interengaging means integral with and appropriately located along the second stud member; and a socket component fabricated using material which is resilient but form retaining adapted to interfit and interengage with both the first and the second stud component. The socket component is otherwise substantially the same as previously described.

A more particular object of the invention is to provide the fastening device as described above wherein the socket component is fabricated using material which is resilient but form retaining and wherein each of the first and second stud component interengaging means is a disc having an inner and an outer diameter and each inner diameter being greater than the outer diameter and greater than the stud diameter. The spacing between adjacent discs is not less than a dimension which is adequate to permit the interengaging of the stud and the socket components. The socket component further comprises at least one means for engagement which matingly cooperates with at least one of both the first and second stud component disc interengaging means when the first and second stud components and socket component are attached.

These and further objects of the present invention will become apparent to those skilled in the art to which this invention pertains and after a study of the present disclosure of the invention.

FIG. 1 is a frontal perspective view of the fastening device illustrating the embodiment having a disc and cooperating interengaging means associated with the stud and socket components respectively and showing the aperture somewhat deformed toward a circular cross-section with a diameter of about the diameter of the disc interengaging means;

FIG. 2 is a top view of the fastening device illustrating the substantially circular body portion of the stud component and the flexible connector connecting the stud and the socket components;

FIG. 3 is an cross section view of the fastening device illustrating a slightly curved first inner surface adapted to clamp material between such surface and the socket component along with a cross section of the stud member and the aperture showing the cooperating interengaging means of the stud and the socket components and that the minor axis of the aperture is shown to be not more than the stud diameter;

FIG. 4 is a bottom view of the fastening device illustrating the cross section of the aperture and the recess or ledge into which the disc interengaging means fits when the two components are interengaged;

FIG. 5 is a bottom view of the fastening device illustrating the cross section of the aperture and the recess or ledge into which the disc interengaging means fits when the two components are interengaged and further showing the major and minor axes dimensions;

FIG. 6 is a side view of the stud component of the fastening device illustrating the substantially circular body portion of the stud component, the stud member, and the stud interengaging means comprised of a tapered section;

FIG. 7 is a perspective view of the fastening device illustrating the stud component and the socket component; and

FIG. 8 is a bottom view of the fastening device illustrating the stud component and the socket components in an interengaged state.

FIG. 9 is a bottom view of the socket component and a side view of the stud component having more than one disc for engaging the socket component and further showing the major and minor axes dimensions;

FIG. 9A is a side view of the stud component of the fastening device and a sectional view of the socket component illustrating the connection of the two components showing the recess or ledge into which the disc interengaging means fits when the two components are interengaged and also illustrating the stud interengaging means comprised of a tapered section;

FIG. 10 is a perspective view of the fastening device illustrating the stud component having a plurality of disc interengaging means and the socket component;

FIG. 11 is a bottom view of the fastening device illustrating the stud component and the socket components in an interengaged state.

FIG. 12 is a bottom view of the socket component and a side view of the stud component having more than one disc for engaging the socket component and more than one recess in the socket component and further showing the major and minor axes dimensions;

FIG. 12A is a side view of the stud component of the fastening device and a sectional view of the socket component illustrating the connection of the two components showing the two recesses or ledges into which the disc interengaging means fits when the two components are interengaged and also illustrating the stud interengaging means comprised of a tapered section;

FIG. 13 is a perspective view of the fastening device illustrating two stud components which are attachable end-to-end using a socket component with a recess into which the two discs are contained when the two stud components are interengaged by the socket component;

FIG. 13A is a side view of the stud component of the fastening device and a sectional view of the socket component illustrating the connection by the socket component of the two stud components showing the recess or ledge into which the two disc interengaging means fit when the two stud components are interengaged end-to-end and also illustrating the stud interengaging means comprised of a tapered section; and

FIG. 14 is a perspective view of the fastening device illustrating two stud components which are in end-to-end relationship and showing the relationship of the discs when the two stud components are assembled.

The following is a description of the preferred embodiment of the invention. It is clear that there may be variations in the size and the shape of the apparatus. However, the main features of the device/apparatus is the deformation of the cross section of an aperture from being substantially oval or elliptical toward a more circular cross section. The degree of deformation will be dependent upon the intended use of the fastening device. The more the deformation the greater will be the clamping or the holding power of the device. The power of the device will also be a function of the material characteristics from which the two basic components are made. The device can be interengaged and disengaged with the use of one hand and with access to only the socket component of the device. A simple "pinching" action will result in the disengagement of the components.

In order to describe the invention most clearly and simply, the fastening device 10 will be described as being substantially a circular shaped device with basically two components- a stud component 15 and a socket component 20 both of which are designed or adapted to clamp material between them when the components are fastened together. The two components may be interconnected by flexible connector 8. Clearly where there is access only to one side of materials being clamped together or otherwise assembled or fastened, the connector 8 would not be used. However, if the device 10 is being used in a manner similar to paper clips where each of the sheets to be attached by use of the device 10 may or may not have a hole punched at any predetermined location around the periphery, connector 8 may be a part of the device 10.

Reference is now made to FIGS. 1-8 all of which depict an embodiment of the fastening device 10 of the invention. The stud component 15 has a substantially cylindrical shaped stud member 14 which extends about vertically from a body portion 16. In the embodiment illustrated in the various drawing figures there is also a disc interengaging means 17 which is adapted to interengage or interconnect with a cooperating means for interengaging 22 which engages disc 17 when the stud and the socket components 15 and 20 are interfitted. I.e., the stud component 15 is pressed into the aperture 24 of socket component 20 deforming the aperture 24 by increasing the minor axis dimension D1 and correspondingly decreasing the major axis dimension D2 and the disc 17 interengages with the corresponding recess 22. The extent of the contact between disc 17 and recess 22 is a function of the dimensions D1 and D2 relative to the stud diameter D5. It is desirable that one-half of the sum of D1 and D2 be greater than or equal to the inner diameter D3 and D1 be less than stud diameter D5 but at the same time greater than outer diameter D4. The disc 17 is tapered in that the inner diameter D3 is larger than the outer diameter D4 and D3 is larger than the stud diameter D5. It is also desirable, in order to permit relatively easy assembly or clamping of the two components, to have the outer diameter D4 be less than the minor axis dimension D1. The difference between D3 and D4 is the taper or means for deforming aperture 24. When the stud component 15 is deformingly inserted into aperture 24 of component 20, the disc 17 will snappingly interengage with recess 22. The properties of the material from which component 20 is made and the forces created by the deformation of the aperture 24 firmly interengage or interconnect components 15 and 20. If relatively flexible or soft material such as paper or cloth is positioned between components 15 and 20 prior to them being interengaged, such material may be clipped or snapped together by forcibly pushing component 15 onto the material and into aperture 24 until disc 17 engages recess 24 and "pinching" the material between the two components 15 and 20.

Device 10 may also be used by inserting stud member 14 and disc 17 into a hole made in material which material may be but need not be flexible. The component 20 is pressed onto stud member 14 and caused to interengage with component 15. Thus a plurality of sheets of the material may be caused to be attached. The number and the thickness of the sheets of material which may be attached together will depend upon the length dimensions of the stud member 14 and the depth of aperture 24. That is to say, the stud component 15 and the socket component 20 may be adapted in any number of dimensional ways to make device 10 useful as a fastening means for various purposes. A first inner surface 13 of body portion 16 may be designed with various surface finishes and radii adapted to more effectively clamp the material. The particular shape and surface condition of surface 13 will depend of the function of the fastening device 10. Device 10 may be adapted for the attachment of objects together such as attaching an object to a wall which object is not to be permanently attached. The object so attached may be easily and non-damagingly removed by simply squeezing component 20 in a manner which decreases D2 and increases D1 to the point where disc 17 releases from recess 22 and component 20 may be easily taken off of component 15.

At this point it should be clearly noted that the so-called interengaging means may be comprised of frictional forces which exist between the surface of the stud member 14 and the surface of the walls defining the aperture 24. When aperture 24 is deformed by the forceable insertion of stud member 14 (which need not have disc 17 at the end thereof, but instead may have a taper so that the small diameter end is easily insertable into aperture 24 because the small diameter is less than the minor axis dimension D1), forces which result from the deformation of aperture 24- and of course component 20 is considered also to have been deformed- and which forces are also related to the material characteristics of component 20 act to interengage the two components 15 and 20. The surface of the stud member 14 and the surface of the walls defining the aperture 24 may be treated such as having serrates which will enhance the interengagement. In this instance it is desirable that one-half of the sum of D1 and D2 be greater than or equal to the stud diameter D5 and D1 being less than D5. Such means for interengaging are not illustrated however they are within the scope of the invention herein disclosed and claimed.

As easy as it is to cause the interengagement of the two components 15 and 20 and the possible clamping of a plurality of sheets of material such as paper, it is as easy to disengage the components 15 and 20. By simply squeezing component 20 in a manner which decreases D2 and increases D1 to the point where disc 17 releases from recess 22, component 20 may be easily taken off of component 15. A very important advantage of device 10 is that, for interengaging and for disengaging of the two components 15 and 20, a person need have access to only one component-- the socket component 20. Thus items or objects may be attached to a wall in which stud components 15 are incorporated by simply clamping the objects or items using socket components 20. The objects may be easily removed by appropriately pinching component 20 thereby releasing the interengaging means and freeing the object. The device 10 can also be used for purposes similar to the purpose of paper clips except that device 10 may be used anywhere, i.e., it is not restricted in used to the periphery of the items or sheets of paper being attached together.

The instant device 10 could be used to attach two objects when the stud component 15 is attached to one object and the socket component 20 is attached to the second object, for example the snap closure for a garment and the like.

Reference is now made to FIGS. 9-12A all of which depict an embodiment of the fastening device 10A of the invention. Stud component 35 is shown having three 3 discs 17, 17A and 17B on stud member 14. Discs 17 through 17B have substantially the same features as previously described for disc 17 of fastening device 10 of FIGS. 1-8. Socket component 20 is also as previously defined and may be interengaged or in cooperative connection with any one of the three discs 17- 17B thus providing for an adjustment of the depth at which stud member 14 is inserted into aperture 24.

The fastening device 10B of the invention shown in FIGS. 12 and 12A differs from the device 10A in that socket component 30 has a plurality of recess 22 and 22A on the interior wall of aperture 24. Clearly, recess 22A could be interengaged with disc 17 alone. There are many alternative ways in which component 30 may be placed onto and in interengagement with component 35. An example is for recess 22 cooperating with disc 17 and recess 22A cooperating with disc 17A. If socket component 30 is placed further onto stud member 14 discs 17A and 17B will be engaged by recesses 22 and 22A respectively. It is further possible to flip component 30 over so that recess 22 is closest to body portion 16. Recess 22A would then cooperate alone with one of disc 17 through 17B.

It is apparent that there are many additional variations. There could be additional discs and/or additional recesses in the case where additional or increased holding strength is desired. The spacing between the discs 17- 17B and recesses 22 and 22A could be different so long as they remain in mating cooperation.

The fastening device 10C of the invention shown in FIGS. 13, 13A and 14 differs from the device 10A and the device of 10B in that socket component 40 has a recess 42 on the interior wall of aperture 24 and socket component 40 is used to connect together two "stud components" 45 a first and a second 45A and 45B respectively and which may be connected together end-to-end using socket component 40 adapted to interengage with each of the two stud components 45. The end-to-end interengagement may be made and released by the one hand deformation of the socket component- that is the changing of the aperture from ellipse to oval by squeezing parallel to the major axis and then releasing allowing the aperture to tend toward an elliptical shape which results in the engagement of the two stud components. Disc 47 is located on second stud component at a distance D6 which distance D6 is appropriate relative to disc 17 of first stud component 45A so that when second stud component 45B is put in end-to-end relationship with 45A by, for example telescoping diameter D5b into or onto first stud component 45A (illustrated in FIG. 14), recess 42 will engage with both discs 17 and 47 on recess walls 42A and 42B respectively. Socket component 40 thereby effectively connects components 45A and 45B. Release is again accomplished by simply squeezing component 40 along D2 thus reducing D2 and increasing dimension D1 permitting the separation of 45A and 45B without the need to pull, turn or bend the two stud component 45.

Clearly there are many variations again possible. There may be a plurality of discs on each of the stud components 45A and 45B so that the effective length of two stud component 45 may be changed. Additionally, there may be more than one recess of the type shown as 42. The socket component may be made larger in width to allow for a plurality of recesses. All of these variations would likewise have advantages similar to those previously described.

It is thought that the present invention, the method and the fastening device as disclosed herein and many of its attendant advantages is understood from the foregoing description and it will be apparent that various changes may be made in the form, construction and arrangement of the parts thereof without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred or exemplary embodiment thereof.