US20030150753A1 - Enclosure holding data carrier - Google Patents

Abstract

The enclosure comprises: a base portion; retaining means provided on the base portion for releasably holding a data carrier such as a CD within the enclosure; and a closure member, e.g. a plastic sheet, attached to the base portion so as to prevent removal of the CD from the enclosure, an irreversibly breakable join, e.g. a heat weld, being provided between the closure member and the base portion which, when broken, enables the closure member to be opened to allow the CD to be removed from the enclosure. The closure member may be removed entirely or may be hinged to the base portion so it is retained for use as a lid.

Description

TECHNICAL FIELD
• This invention relates to an enclosure holding a data carrier such as a compact disk (CD) or digital versatile disk (DVD).[0001]
BACKGROUND ART
• There are many types of enclosure available for housing CDs and other forms of data carrier, the most well-known being a hinged box formed of clear polystyrene known as a ‘jewel box’ used to hold CDs.[0002]
• The present invention provides an enclosure for a data carrier having features and advantages not provided by known data carrier enclosures.[0003]
• It should be noted that the term data carrier is used herein to cover any form of object capable of carrying machine or computer-readable data, including but not restricted to compact disks (of 15 cm diameter or other sizes), digital video disks (of 15 cm diameter or other sizes), floppy disks, tape cassettes (eg audio tape or video tape), smart cards, data cartridges and computer read-only only or random access memory chips (ROM or RAM).[0004]
• The term data is also used in a broad sense to cover any form of information or programs in any machine or computer-readable format.[0005]
DISCLOSURE OF INVENTION
• According to a first aspect of the present invention, there is provided an enclosure holding a disked-shaped data carrier with a central aperture, the enclosure comprising: a base portion; retaining means provided on the base portion for releasably engaging the central aperture and thus holding the data carrier within the enclosure; and closure means arranged to prevent removal of the data carrier from the enclosure, at least part of the closure means being integrally formed or bonded directly with the base portion, or with a component permanently mounted thereto, around a substantial portion of the periphery of the data carrier or of the enclosure so as to provide an irreversibly breakable join therebetween which, when broken, enables the closure means to be opened to allow the data carrier to be removed from the enclosure.[0006]
• According to another aspect of the invention, there is provided an enclosure for holding a disk-shaped data carrier having a central aperture, the enclosure comprising: a base portion; retaining means provided on the base portion for releasably engaging the central aperture and thus holding the data carrier within the enclosure; and closure means comprising a plastics film or sheet connected to the base portion by a direct bond therebetween around a substantial portion of the periphery of the data carrier or of the enclosure whereby movement of the closure means between a closed position and an open position by breaking at least part of the bond therebetween allows the data carrier to be removed from the enclosure.[0007]
• According to a further aspect of the invention, there is provided the use of an enclosure or apparatus as described above for holding a data carrier without a cover for the outermost face of the data carrier.[0008]
• Other features of the invention will be apparent from the following description and from the subsidiary claims of the specification.[0009]
BRIEF DESCRIPTION OF DRAWINGS
• The invention will now be described with reference to the accompanying drawings, in which:[0010]
• FIG. 1 is a perspective view of an enclosure for housing a disk according to a first embodiment of the invention (with the disk removed);[0011]
• FIG. 2 is a cross-sectional view of an enclosure for housing a compact disk according to a second embodiment of the invention (with a disk shown held therein);[0012]
• FIG. 3 is a schematic plan view of a third embodiment of the invention;[0013]
• FIG. 4 is a schematic cross-sectional view of the third embodiment taken along line A-A shown in FIG. 3;[0014]
• FIG. 5 is a schematic perspective view of a fourth embodiment of the invention, shown in an open position; and[0015]
• FIG. 6 is a schematic cross-sectional view of the fourth embodiment, taken along line B-B of FIG. 5, but shown in a closed position.[0016]
BEST MODE OF CARRYING OUT INVENTION
• FIG. 1 a shows an enclosure for housing a disk, eg a CD. The disk[0017]1 (see FIG. 2) is releasably held in the enclosure by disk-holding means which engage the central aperture of the disk. There are many types of disk-holding means known in the art including those described in the applicants patent specifications WO 96/14636 and WO 97/41563 the disclosure of which is incorporated herein.
• The disk-holding means shown in FIG. 1 comprises three[0018]arms2 resiliently cantilevered from abase3, the inner end of eacharm2 being provided with a segment-shaped portion2A connected by a hinge to one side of atriangular portion4 which thus joins the inner ends of the threearms2. Theportions2A and4 together form a substantially circular button-like portion which is shaped to fit through the central aperture of a disk. The curved side of each segment shapedportion2A is provided with a projection orlip2B (see FIG. 2) which, when adisk1 is mounted on the device, engages on the outwardly facing surface of the disk, i.e. the upper surface of thedisk1 in the orientation shown in FIG. 2, to securely retain it thereon. To release the disk, the button-like member is depressed so as to cause thearms2 to flex about their connections to thebase3 whereby the diameter of the button-like member decreases until thelips2B release their engagement on the disk.
• Release of the disk from the disk holding means is further facilitated by provision of support means[0019]5 on thebase3 such that as the button-like member is depressed the periphery of the disk is supported by the support means5 so the central portion of the disk is flexed downwards by the action of the button-like member until the engagement of thelips2B thereon is released, whereupon the disk is able to revert to its unflexed state and the centre of the disk moves upwards to prevent it being re-engaged by the disk-holding means when the button-like member is released. It should be noted that the degree of flexing in this process is small, the movement of the centre of the disk relative to the periphery often being only 1 mm or even 0.5 mm or less. It should also be noted that, as the disk flexes in the form of a diaphragm, this flexing is evenly spread over the disk and not concentrated along a line.
• The action of this and other disk-holding means is described in more detail in WO 96/14636 and in WO 97/41563.[0020]
• As shown in FIG. 1, the enclosure is also provided with peel-off closure means[0021]6 (shown partially peeled back). This typically comprises a plastics film which may have or one or more other films of plastics, metal or paper laminated therewith. The peel-off closure means is releasably secured to the top of anupstand7 provided around the periphery of thebase3, eg by adhesive or a welded bond therewith. The welded bond may be formed by a simple heat seal between the closure means and thebase3. Thefilm6 is provided with atab6A which may be gripped by a user and used to peel the film away from theupstand7 so as to provide access to a disk held within the enclosure and the disk holding means. Thetab6A may project from one side of the closure means6 (as shown in FIG. 1) or may comprise a liftable corner of the closure means6.
• The plastics film may, for example, be approximately 100 microns thick, and comprise a laminate including a polyethylene layer heat welded to the[0022]upstand7 and other layers to provide the required strength, stiffness and printability.
• The peel-off closure means[0023]6 may be used to carry information, eg describing and/or advertising the contents of the disk held in the enclosure and in particular may be used to inform the user that removal of the peel-off closure means6 indicates acceptance by the user of specified conditions of purchase, eg acceptance of a license agreement. Prior art disk enclosures use the breaking of a seal provided by an adhesive label or removal of packaging to indicate acceptance of a license agreement and the peel-offclosing means6 provides another way of indicating this. The peel-off closure means6 may thus be regarded as a label secured to thebase3 which both provides information to the user and serves as closure means.
• If desired, the peel-off closure means may be wholly or partially transparent so the[0024]disk1 can be seen therethrough.
• FIG. 2 is a cross-sectional view of an enclosure similar to that of FIG. 1 but with a different form of disk holding means, eg of the form shown in FIGS. 8 and 9 of WO 97/41563, which comprises two[0025]arms2 resiliently cantilevered from thebase3, the inner ends of which form a button-like member divided by an S-shaped gap. The action of this disk holding means is, however, similar to that of FIG. 1, as described further in WO97/41563.
• FIG. 2 shows a[0026]disk1 held in the enclosure and the peel-off closure means6 in the closed position. Thedisk1 is held so the side carrying the data faces and is thus protected by thebase3.
• Peeling back of the peel-off closure means[0027]6 breaks the bond between the closure means6 and theupstand7 and results in irreversible damage to the bond between the closure means6 and theupstand7 and/or to the closure means6, eg due to stretching, creasing, tearing or the like, so it is not possible to re-seal the enclosure with the peel-off closure means6 once it has been opened.
• The above feature also renders the enclosure tamper-evident in that any attempt to open it to gain access to the disk held therein is irreversible and will result in visible damage to the closure means[0028]6 and/or visible damage to the bond between the peel-off closure means6 and theupstand7.
• If adhesive is used to secure the peel-off closure means[0029]6 to theupstand7, this is preferably of a nature which does not readily re-seal once the bond has been broken. The adhesive used may, for example, be a heat-cured adhesive or an adhesive cured by ultra-violet or infra-red radiation.
• Once the peel-off closure means[0030]6 has been removed, the underside of the disk (which carries the data held thereon) remains protected as it faces towards thebase3 and by the provision of anupstand8 adjacent the periphery of the disk. Various forms ofupstand8 may be provided and the reader is again referred to WO96/14636 and WO97/41563 for examples and further details. As shown in FIG. 2, thesupport5 may comprise a step on the inner side of theupstand8.
• In an alternative arrangement (not shown), the peel-off closure means[0031]6 may be secured to theupstand8 instead of (or in addition to) theupstand7.
• The[0032]upstand7 and/or8 should preferably project from thebase3 by a distance sufficient to ensure that the peel-off closure means6 does not touch thedisk1 when secured to theupstand8, although, in some cases, the arrangement may be such that the peel-off closure means6 engages thedisk1 when it is in the closed position.
• In other arrangements, the enclosure may be arranged so there is room for a leaflet or booklet to be positioned on top of the[0033]disk1 beneath the peel-off closure means6.
• The peel-off closure means[0034]6 may be similar to known peel-off closure means used in other applications, e.g. a thin plastics film, or foil-like closure means as used in the food industry for sealing food containers or the medical industry for sealing sterile containers. Alternatively, the enclosure means may be relatively rigid, e.g. in the form of a cardboard or plastics sheet which has a tendency to adopt a flat form.
• However, unlike such prior art, in which the container is usually a disposable item, the apparatus described herein is designed to be retained and used to hold the disk after the closure means[0035]6 has been removed and thrown away. The peel-off closure means6 is used to provide extra protection for the disk between the time it is manufactured to the time it is sold to the end user and to provide sales information and/or an indication of the acceptance of a license agreement as discussed above. Once the enclosure has been opened by the end user, the remaining apparatus provides sufficient protection for the disk. This arises from the fact that the function of the disk holding means is independent of the presence of the peel-off closure means6 and by the fact that the disk is positively held on the apparatus by the disk-holding means as described above and can only be removed therefrom by depression of the button-like member.
• In particular, as discussed further in WO96/14636 and WO97/41563 referred to above, the disk holding means and/or the[0036]upstand8 are preferably designed so that it is not possible to prise the disk off the apparatus by lifting an edge of the disk.
• Furthermore, end users are likely to store their collection of disks in a box or a racking system which provides additional protection so it is not necessary for each disk to be enclosed in its own individual container. This is in contrast to the usual practice in this field and stems from the realisation that, as only one side of the disk, i.e. the side that carries the data, requires particular protection, a disk holder need only be one sided, i.e. it need only protect one side of the disk and does not need to be in the form of an enclosure.[0037]
• As described above, the apparatus described herein, in effect, encloses the sensitive side of the disk, by means of the[0038]base3, theupstand8 positioned close to the periphery of the disk and the opposite side of the disk itself which protects the recorded side of the disk from potential harm originating from sources on the other side of the disk. Furthermore, the apparatus described herein provides a rigid support which helps protect the disk from flexing, bending or warping which are often the main causes of damage to a disk.
• In addition to the above, the upstand[0039]7 (or8) is preferably of a height such that if the apparatus is laid on a flat surface with the rear surface of thebase3 uppermost, at least thedisk1, and preferably also the disk-holding means, do not touch the surface. Thedisk1 may, for example, be held at least 0.3 mm and preferably 1 mm or more away from the surface. The button-like member of the disk holding means may be at the same level as the upstand7 (or8) so it may just touch the surface (but not be pressed thereby) or may be spaced from the surface, e.g. by up to 0.7 mm or more. Thus, theupstand7 is configured such that if the apparatus is positioned with the upstand against a substantially flat surface, thedisk1, and preferably the disk holding means as well, are held away from the surface.
• The enclosure after the peel-off closure means[0040]6 has been removed thus provides apparatus for holding the disk, there being no necessity to provide an additional cover, lid or other container over the outermost face of the disk. The rear face of thebase3 may be provided with a label9 and, in effect, be used as the front face of the product with the disk held on the other side of the apparatus. As indicated above, such apparatus can be laid on a flat surface such as a table or desk with the disk on the underside, protected from contact with the table by the upstand7 (or8), with the label9 uppermost.
• The rear face of the[0041]base portion3 is also preferably provided with asmall upstand7A (see FIG. 2) e.g. less than 1 mm high and preferably less than 0.5 mm, around the periphery thereof to protect the label9 from being worn or scuffed when the enclosure is placed on a surface with its rear face nearest the surface.
• The[0042]base3 may also be formed of transparent or translucent material in which case the label9 may be printed on both sides as the side secured to the underside of thebase3 will be visible through thebase3.
• In a further embodiment (not shown), disk holding means may be provided on both major faces of the[0043]base3 so a disk can be held on each side of the base, e.g. by affixing two enclosures back to back or by using an alternative form of disk holding means that can be formed on both sides of a single base.
• As the upstand[0044]7 (or8) functions to support the apparatus when laid against a surface as well as providing a frame around the apparatus, it is preferably of a substantially rigid and sturdy construction.
• The[0045]base3, disk-holding means andupstands7 and8 are preferably formed as an integral plastics moulding which can be formed in a one-shot injection moulding process.
• As indicated above, the reverse side of the[0046]base3 may be used to provide information and/or advertising relating to the contents of the disk held on the device. This may be provided by a printed sheet9 (see FIG. 2) held within a sleeve (not shown) or, preferably, by a printed sheet or label adhered to the reverse side of thebase3. In the latter case, the sheet9 also serves to provide a seal across apertures in thebase3 formed during the fabrication of thearms2 and button-like member.
• The reverse side of the[0047]base3 preferably comprises a large flat surface as shown in FIG. 2. As mentioned above, a small upstand is preferably provided around the periphery of the reverse side of the base to protect the sheet or label9 from scuffing when the apparatus is laid down with the sheet or label underneath.
• If the[0048]upstand7 or8 to which the peel-off closure means6 is secured is continuous, the disk is held in a sealed enclosure whilst the peel-off closure means is in place and thus sealed against the ingression of dust or moisture whilst it is in transit or in storage prior to its use and whilst it is on display in a retail outlet. Once the enclosure has been opened by the end-user, a similar level of protection is not generally required as end-users are more likely to take care of their disks and often store them in purpose-made racking systems. The home or office environment in which a disk is used also usually subjects the disk to less extreme conditions than it might experience before it reaches the end-user.
• In further embodiments of the invention, the closure means may be arranged so that it can be peeled back to open the enclosure but not removed therefrom, so it is retained to provide re-usable closure means for the enclosure. Whilst the[0049]base3 can alone protect the sensitive side of the disk as described above, in some applications it is still desirable for the enclosure to retain a lid.
• In a simple form (not shown), this may be achieved by bonding one edge of the closure means[0050]6, e.g. the edge opposite thetab6A, to thebase3 by a stronger form of adhesive, heat weld or any other permanent method of fixing, so the closure means remains attached to thebase portion3 when opened in the manner shown in FIG. 1. In addition, a re-sealable form of adhesive (or other form of holding means) is provided on the closure means, e.g. on thetab6A, so when the closure means is closed again, it can be releasably held in a closed position by this re-sealable means.
• FIGS. 3 and 4 show an embodiment in which the closure means remains attached to the enclosure so it can be retained as a lid for the enclosure. The enclosure shown in FIGS. 3 and 4 has a[0051]base3,upstands7 and8 and disk holding means similar to those of FIGS. 1 and 2, although thebase3 has anextension10 on oneside3A thereof. The closure means comprises asheet11 which is adhered to the underside of the base, extends around anedge3B of the base, and then extends across the upper surface of the base to theopposite side3A of the base and is provided with afastener portion11A for fastening to theextension10 of thebase3. Thesheet11 is initially bonded to theupstand7 alongside3A andsides3C and3D (which extend betweensides3A and3B) of the base by a welded joint or by an adhesive which does not readily re-seal once the bond has been broken, e.g. a heat-cured adhesive or an adhesive cured by ultra-violet or infra-red radiation as described in relation to the embodiment shown in FIGS. 1 and 2.
• The[0052]sheet11 may also, if desired, be secured to theedge3B of the base or to the upper surface of the base in the region of theedge3B in addition to its securement to the rear face of the base.
• The[0053]fastener portion11A of the enclosure means is releasably fastened to theextension10 of the base by means of a re-useable adhesive strip, such as that used on Post-it (™) notes manufactured by 3M, which can be repeatedly released and re-sealed, or by some other form of releasable fastening.
• When the enclosure is first used, the[0054]fastener portion11A is lifted away from theextension10 and thesheet11 peeled back so the irreversibly breakable bond with theupstand7 alongsides3A,3C and3D of thebase3 is broken. Thesheet11 remains attached to thebase3 along (or adjacent) theedge3B thereof, and the join therebetween acts as a hinge between thebase3 and theportion11B of the sheet that has been peeled away from theupstand7. Thisportion11B can then be used as a lid and used to close the enclosure again by laying it over the upper surface of thebase3 and re-fastening thefastener portion11A thereof to theextension10.
• In a further arrangement (not shown), the irreversibly breakable join between the closure means and the base may be provided by a weak portion adjacent the edge of the closure means, such as a partially cut through area or a line of spaced cuts, or by a tear off strip along the edges of the closure means.[0055]
• The[0056]base3 is again preferably provided with a small upstand, similar to that shown at7A in FIG. 2, alongsides3A,3C and3D of its underside to protect theportion11C of the sheet on the underside of the base from being worn or scuffed when the enclosure is laid on a surface such as a desk or table. This upstand may also extend around theedge3B of the base to protect the portion of the sheet extending around this edge.
• The[0057]extension10 is preferably formed so as to provide an upper surface to which thefastener portion11A can be fastened and a lower surface which forms a continuation of the underside of thebase3 to which theportion11C of the sheet can be affixed.
• The[0058]sheet11 used in the embodiment shown in FIGS. 3 and 4 may be printed as a single flat sheet prior to being adhered to the base. Thesheet11 may, thus, be used to provide information on the underside of the base, information along theedge3B of the base (which, in use, is, in effect, similar to the spine of a conventional CD box) and information on the upper side of the base. Theportion11B of thesheet11 which lies over the upper side of thebase3 is, preferably, at least partially transparent, so a disk held in the enclosure can be seen there through.
• The enclosure shown in FIGS. 3 and 4 comprising a base and a sheet extending from one side of the base around to the other side thereof, can be made very thin, especially if the sheet is in the form of a thin, foil-like sheet or a thin plastics or laminated plastics sheet. The sheet may typically have a thickness in the range 150-200 microns, eg around 170 microns.[0059]
• FIGS. 5 and 6 show a further embodiment of an enclosure in which the closure means is initially joined to the base portion in such a manner that, at least part of the join can be broken to enable the closure means to be opened to allow removal of the disk but in which the closure means remains attached to the base portion so it can subsequently be used as a re-sealable lid.[0060]
• In this embodiment, the[0061]peripheral portion11D of the closure means around sides3A,3C and3D of the base is integrally formed with thebase portion3, and joined thereto by abreakable portion12, such as a thin or weakened area of the plastics material extending around the edges of the closure means. The remainder of the closure means comprises asheet11 similar to that described above but in this case permanently adhered or affixed to theperipheral portion11D of the closure means rather than to an upstand on thebase portion3.
• The[0062]breakable portion12 may comprise a narrow area of the plastics material which extends along the edges of the closure means and has a thickness less than the adjacent areas so that the closure means and base can be pulled apart by a tear propagating along this narrow, weakened area of plastics material. Thebreakable portion12 is preferably provided at the corner between thevertical edge3A of the base and a horizontal portion of theperipheral portion11D (as shown in FIG. 6) so it can be easily formed during a moulding process.
• The breakable portion may also be provided by an intermittent line of cuts or incisions extending along the edges of the closure means to provide a weakened area which enables the closure means and base to be torn apart.[0063]
• FIG. 5 shows this embodiment in an open position after the join between the[0064]peripheral portion11D of the closure means and thesides3A,3C and3D of the base portion has been broken, so the closure means can be opened. As in the embodiment described above, the closure means remains attached to thebase3 along theedge3B of the base, this attachment forming a hinge for the closure means.
• FIG. 6 is a cross-sectional view of the enclosure shown in FIG. 5, along the line B-B, but with the closure means shown in the closed position. As shown, the[0065]peripheral portion11D of the closure means is initially joined to theedge3A of the base (and also to theedges3C and3D which are not shown in FIG. 6) by thebreakable portion12. When the part of theperipheral portion11D joined to theedge3A is first lifted away from thebase3, e.g. by means of a tab provided on theperipheral portion11D at one end of theedge3A, thejoin12 therebetween is broken and as the closure means continues to be lifted away from thebase3, the break in this join travels along thesides3A,3C and3D of the base in the form of a tear. Once the closure means has been opened in this manner, the disk held in the enclosure can be removed.
• The closure means can then be moved to the closed position again and may be held in this position by an interference fit between the sides of the[0066]base3 and the sides of theperipheral portion11D which overlap with each other (as shown in FIG. 6). A fastener or clip or other re-sealable means may, if desired, also be provided between an edge of thebase3 and a side of theperipheral portion11D to releasably hold the peripheral portion, and hence the closure means, in the closed position.
• In a modified form of the enclosure shown in FIGS. 5 and 6, the[0067]peripheral portion11D and theedges3A,3C and3D of the base may be integrally formed with each other and separated by means of a tear-off strip as used to provide tamper-proof lids of some medicine or food jars.
• In another arrangement, the tear-off strip may be formed separately and joined to the closure means and base by irreversibly breakable joins. In a further arrangement, a tear-off strip may be provided along one edge of the base, e.g. along[0068]edge3A, and narrow, weakened areas (as described above) provided alongedges3C and3D.
• In the embodiment shown in FIGS. 5 and 6, it will be appreciated that the[0069]base3, disk engaging means and theperipheral portion11D of the closure means are initially formed as a one-piece moulding, a disk is then inserted into the enclosure through the opening between the sides of theperipheral portion11D and thesheet11 then attached to theperipheral portion11D andbase3. In this case, thesheet11 is permanently adhered to theperipheral portion11D and to thebase3 as it is not designed to be removed again.
• In a further embodiment (not shown), the[0070]peripheral portion11D of the closure means may be a separate item to thebase portion3 and arranged to be irreversibly mounted on the base portion, e.g. by a one-way, snap-on fit (similar to that used for lids of medicine or food containers provided with integrally formed, tear-off strips). In this case, the breakable join or tear-off strip would be between an openable portion of theperipheral portion11 and a portion thereof which has been irreversibly mounted on thebase3.
• The portion(s) of the[0071]base3 and closure means joined by the irreversibly breakable join should be sufficient to prevent removal of the disk from the enclosure. Preferably, this join extends around a substantial portion of the periphery of the disk or of the enclosure.
• In a preferred arrangement, the join between the[0072]base3 and the closure means prior to initial opening of the enclosure, provides a seal against the ingress of dust and/or moisture into the enclosure so, prior to initial opening of the enclosure, the disk is held within a sealed space. The irreversibly breakable join between the closure means and the base, together with the permanently affixed portion thereof (when applicable), thus preferably extend around the entire periphery of the disk and/or of the enclosure.
• Another advantage of the invention is that it provides an enclosure which is relatively easy and is inexpensive to manufacture. As indicated above, the apparatus shown in the drawings is preferably designed so it can be manufactured by a one-shot injection moulding process. It will also be appreciated that other forms of enclosure (not shown) may be formed by other processes, e.g. vacuum forming, which similarly provide a fast and inexpensive manufacturing process and which is compatible with the provision of peel-off closure means. The manufacture of an enclosure with peel-off closure means is also less expensive than, for example, a folded cardboard cover.[0073]
• The invention also enables the enclosure to be made very thin, e.g. less than 5 mm in thickness, and preferably as thin as 3 mm.[0074]
• As indicated above, disks are often stored by the end-user in a racking system. To facilitate this, the[0075]base3 is preferably shaped to fit conventional racking systems and/or may be provided with suitable engagement means (not shown) to facilitate its installation within a racking system. Thebase3 may, if desired, also be provided with a removable tag, or means for receiving a tag, for identification purposes when thebase3 is held in a racking system in the form of a conventional card index.
• The enclosure need not necessarily be of a square or rectangular shape and any other shape capable of housing and releasably holding the disk (or other form of data carrier) may be used. Whatever the shape of the enclosure, the irreversibly breakable join should be arranged to initially prevent removal of the disk from the enclosure but, when broken, enable the closure means to be opened to an extent sufficient to permit removal of the disk from the enclosure.[0076]
• Although the apparatus described above is sufficient to hold and protect a disk as described, it may also be used as an insert or tray, e.g. for fitting within another enclosure such as a conventional jewel box or within a folded cardboard cover.[0077]
• Although the invention has been described with particular reference to an enclosure holding a disk such as a CD, it will be appreciated that the use of peel-off closure means for similar purposes is applicable to enclosures adapted to releasably hold other forms of data carrier.[0078]
• In a further aspect of the invention, an enclosure similar to those described above may be provided but with the irreversibly breakable join omitted or replaced by a re-sealable join. Such an enclosure is suitable for holding a blank, recordable data carrier, e.g. a CD-R, or for providing as an empty enclosure to house a data carrier already owned by a user. In such circumstances, the provision of an irreversibly breakable join to indicate acceptance of a licence agreement or to provide additional protection for the data carrier may not be required. Blank data carriers may, nevertheless, be provided in an enclosure such as described in relation to FIGS.[0079]1 to6 and, similarly, such enclosures may also be provided without a data carrier held therein, the user inserting their own data carrier once the enclosure has been opened.

Claims (24)

1. An enclosure holding a data carrier, the enclosure comprising: a base portion; retaining means provided on the base portion for releasably holding the data carrier within the enclosure; and closure means arranged to prevent removal of the data carrier from the enclosure, at least part of the closure means being integrally formed or bonded directly with the base portion, or with a component permanently mounted thereto, so as to provide an irreversibly breakable join therebetween which, when broken, enables the closure means to be opened to allow the data carrier to be removed from the enclosure.

2. An enclosure as claimed inclaim 1 having an upstand which surrounds or partially surrounds the data carrier, the said join being provided between at least part of the upstand and the closure means.

3. An enclosure as claimed inclaim 1 in which the closure means can be peeled off the base portion.

4. An enclosure as claimed inclaim 1 provided with information informing the user that removal of the closure means indicates acceptance by the user of specified conditions of purchase, e.g. acceptance of a license agreement.

5. An enclosure as claimed inclaim 4 in which the said information is provided on the closure means.

6. An enclosure as claimed inclaim 1 in which the closure means comprises a tab by which a user can grip the closure means to pull it away from the base portion.

7. An enclosure as claimed inclaim 1 in which the closure means comprises a plastics film.

8. An enclosure as claimed inclaim 7 in which the plastics film is laminated with one or more films of plastics, metal and/or paper.

9. An enclosure as claimed inclaim 1, the interior of which is sealed against the ingression of dust until the irreversibly breakable join is broken.

10. An enclosure as claimed inclaim 1 in which the retaining means is provided on a major face of the base portion and the enclosure means extends across said major face, around an edge of the base portion and across a major face on the other side of the base portion.

11. An enclosure as claimed inclaim 1 in which the retaining means is arranged to releasably hold the data carrier independently of the presence of the closure means.

12. An enclosure as claimed inclaim 2 in which the upstand is configured such that if the enclosure is positioned with the upstand against a substantially flat surface, the retaining means and the data carrier are supported clear of the surface.

13. An enclosure as claimed inclaim 1 in which a sufficient portion of the closure means can be separated from the base portion to allow removal of the data carrier whilst a further portion of the closure means remains attached to the base portion so the closure means can subsequently be reused to close the enclosure.

14. An enclosure as claimed inclaim 13 in which said further portion of the closure means is permanently secured to the base portion.

15. An enclosure as claimed inclaim 13 in which the closure means is provided with holding means for releasably holding the closure means in a closed position once said irreversibly breakable join has been broken.

16. An enclosure as claimed inclaim 13 in which the closure means comprises a sheet permanently secured to one edge of the base portion, secured to one or more other edges of the base portion by the irreversibly breakable join and provided with said holding means on an edge opposite to that permanently secured to the base portion.

17. An enclosure for holding a data carrier, the enclosure comprising: a base portion; retaining means provided on the base portion for releasably holding the data carrier within the enclosure; and closure means comprising a plastics film or sheet connected to the base portion by a direct bond therebetween whereby movement of the closure means between a closed position and an open position by breaking at least part of the bond therebetween allows the data carrier to be removed from the enclosure.

18. An enclosure as claimed inclaim 17 in which the plastics film or sheet is secured to the base portion along or adjacent to an edge thereof so as to be hingeable thereabout.

19. An enclosure as claimed inclaim 18 in which the closure means is provided with holding means for releasably holding the closure means in a closed position.

20. An enclosure as claimed inclaim 17 in which the plastics film or sheet extends around an edge of the base position and across the reverse face of the base portion.

21. An enclosure holding a disk-shaped data carrier with a central aperture, the enclosure comprising: a base portion; retaining means provided on the base portion for releasably engaging the central aperture and thus holding the data carrier within the enclosure; and closure means arranged to prevent removal of the data carrier from the enclosure, at least part of the closure means being integrally formed or bonded directly with the base portion, or with a component permanently mounted thereto, around a substantial portion of the periphery of the data carrier or of the enclosure so as to provide an irreversibly breakable join therebetween which, when broken, enables the closure means to be opened to allow the data carrier to be removed from the enclosure.

22. An enclosure holding a disk-shaped data carrier having a central aperture and machine or computer-readable data recorded on only one side thereof, the enclosure comprising: an injection moulded plastics base portion which is substantially rigid and substantially planar; retaining means integrally formed on the base portion for releasably engaging the central aperture of the data carrier to hold securely the data carrier with the data recorded on said one side facing but spaced from the base portion; an upstand projecting from the base portion and which surrounds or partially surrounds the data carrier; and peel-off closure means arranged to prevent removal of the data carrier from the enclosure, an irreversibly breakable join being provided to secure the closure means to at least part of the upstand which, when broken, enables the closure means to be opened to allow the data carrier to be removed from the enclosure, the retaining means securely holding the data carrier so as to protect data carried on the said one side of the data carrier even when the closure means is opened or removed.

23. An enclosure as claimed inclaim 22 in which the upstand is at the periphery of the base portion.

24. An enclosure as claimed inclaim 22 in which the or a further upstand is adjacent the periphery of the data carrier.

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