It is often desirable to place papers and documents in a cover for storage and protection. A common method is to put two punched holes in a top edge of the papers and fit them over a prong fastener of the type sold by Acco and Speedway in a cover.
In the past, it has often been the case that many different types of covers have needed to be stocked to accommodate different sizes and types of reports. Further, it has been the case that extensive assembly of the cover is necessary at the time the papers are inserted in the cover. This can be very difficult when preparing many covers in a short time, such as during tax season.
It is desirable to provide identification on the cover's spine or front to note the contents within the cover, assuming that it will be placed on a shelf or in a file drawer with other covers, in order to distinguish one cover from another. Also, it is desirable to put a firm or company name or logo on the cover to provide a professional appearance.
A need exists to provide an elegant, high image professional looking cover which is also economical and easy to assemble. It is also desirable to make it as easy as possible to insert and remove papers from the cover. This makes it easier to remove or add documents in revisions, or to take out documents for copying. Also, it is desirable to have the cover allow the contents to lie flat on a table. Further, as such covers are often used on surfaces that can be scratched, it is best to avoid use of exposed metal, or other hard objects, such as rivets or the like that could scratch or mar a surface.
In accordance with one aspect of the present invention, a cover is provided comprising a member forming a front cover, spine and back cover. A first portion is hinged to a top edge of the back cover at a first hinge and a second portion is hinged to a top edge of the first portion at a second hinge. The first portion has at least two slits formed therein at a set distance apart. Each prong of a prong fastener is inserted through one of the slits. The second portion is folded over the first portion so that a first side of the second portion contacts a first side of the first portion with the second portion covering the base of the prong fastener. The first portion is folded over the back cover at the first hinge so that a second side of the second portion contacts an inner surface of the back cover. An adhesive tape between the second side of the second portion and the inner surface of the back cover secures the first and second portions to the back cover.
In accordance with another aspect of the present invention, the first and second portions are part of a fastener assembly including a third portion hinged to the bottom of the first portion along a third hinge. An adhesive tape between the third portion and the back cover secures the fastener assembly to the back cover so that the third hinge forms the first hinge. The cover can have an add on or built in pocket, and a business card or CD slot. The spine can have multiple scorelines. In accordance with another aspect of the present invention, a cover is provided comprising a member forming a front cover, spine, back cover and a flap hinged to a edge of the back cover at a first hinge.
A more complete understanding of the invention and its advantages will be apparent from the following Detailed Description when taken in conjunction with the accompanying Drawings, in which:
With reference now the Figures, wherein like reference characters designate like or corresponding parts throughout the several views, and in particular to
With reference now to
As seen in
In use, the second portion 38 begins to be folded over the first portion 32 at the second hinge 44 as seen in
At this point, the first portion 32 is folded about first hinge 36 until the second side 56 of second portion 38 contacts the inner surface 62 of the back cover 26. Just prior to this folding, the sheet 60 is removed from tape 58 so that when the second side 56 contacts the inner surface 62, the tape 58 adheres permanently to the inner surface 62 as seen in
The adhesive tape 58 is preferably a double sided adhesive tape system which is a permeable non-woven pulp based tissue coated both sides with a specially developed pressure sensitive adhesive. The presence of the tissue within the adhesive lends extra cohesion together with conformability to the tape, rendering the adhesive bond performance superior to what may be expected from a simple unsupported transfer tape. The pressure sensitive adhesive can be a rubber based adhesive. The adhesive tape 58 can have a thickness of about 150 micron while the protective sheet 60 has a thickness of about 55 micron. The adhesive tape 58 can have a layer of adhesive of about 70 gsm, a tissue layer of about 12 gsm and another layer of adhesive of about 70 gsm. Preferably, the adhesive properties of tape 58 would have adhesion to steel of 1600 N/M for both 20 min and 24 hour under the test method BS7116:1990-D, shear adhesion of 100 hours under the test method BS7116:1990-B, and release of the sheet 60 from tape 58 of 15 N/M for 20 min under the test method BS7116:1990-E. A suitable product to form tape 58 is product 2491F sold by SteraTape Ltd., Lancaster Road, Carnaby Ind. Est., Bridlington, YO15 3QY, England.
The embodiment described above and shown in the figures has numerous advantages. The design of the cover 10 allows the user to easily take out the documents 64 or other materials, make copies, and then easily rebind the documents for future reference. All that is necessary is to unbend the prongs 14, remove the documents 64 for what ever purpose needed, place the documents back over the prongs 14 and bend the prongs back. Many bound documents can't be removed or reassembled from a cover without use of special equipment, a typical example being a GBC binder that needs a special machine to open the binder to insert the documents. By use of the adhesive tape 58, the documents 64 and first and second portions 32 and 38 will not sag within the cover 10, but will remain fixed in place as can clearly be seen in
The tape 58 is particularly important to the function of the cover 10. As illustrated, the tape 58 preferably covers substantially all the area, or at least the majority of, the second side 56 of the second portion 38 to provide maximum adhesion of the portion 38 to the back cover 26. This prevents bowing out of the portions from the back cover when documents are held by the cover. Also, it prevents sagging of the portions and any tendency of the prongs 14 to egg out the holes in the documents as they are held in the report. If the documents are not rigidly held in the cover, the documents could rock back and forth like a pendulum within the cover, again causing the prongs 14 to egg out or enlarge the holes in the documents. Of course, adhesive tape 58 can be placed on the inner surface 62 of the back cover 26, rather than on second portion 38, if desired. In such a design, the protective sheet 60 would simply be removed and the first and second portions 32 and 38 folded as before, with the second portion 38 folded onto the adhesive tape 58 to secure the second portion 38 to the back cover 26.
By use of the multiple scorelines 90, documents of varied thicknesses can be held in a single cover 10, reducing the need for a large inventory of covers to fit different size documents. For example, cover 10 can hold from 1 to at least 250 pages.
While the above description and figures show the documents 64 being involved as the cover 10 is assembled, a more likely scenario would be that the cover 10 is assembled first, or preassembled, and then the final assembly of the cover with the documents 64 would take place at a later time. Often these two steps would happen consecutively, but they don't have to. The preassembled covers could be stored for future use. This is a benefit to some businesses since it allows for greater throughput when trying to assemble many documents in a short period of time. For example, for tax returns being bound in covers 10 in April, staff could preassemble the covers ahead of time, leaving only the final assembly of the document to the preassembled cover during the tax rush. This can be a big benefit when the documents are coming off the printer faster than they can be bound in covers, especially when up against hard deadlines like April 15th.
As can be seen in
Preferably, one letter size design of the cover 10 will have a height of about 12 inches. This will allow the cover 10 to hold conventional 8½ by 11 inch documents entirely within the cover, but still allow the cover to fit in cabinets and file drawers designed for letter size documents. The secure attachment of the portions 32 and 38 to the back cover will prevent any sagging of the documents in the cover 10 that might otherwise allow a portion of the documents to extend below the lower edge of the cover 10.
In one cover constructed in accordance with the teachings of the present invention designed for use with 8½ by 11 documents, the first portion 32 had a width of 8½ inches and a height, measured between score lines 34 and 42, of 1.25 inches. The second portion 38 had a width of 8½ inches and a height, measured between score line 42 and the top of portion 38, of 1.125 inches. The dimensions of adhesive tape 58 were about 8 inches by 13/16 inches, for an area of about 6.5 square inches, thus covering the majority of the area of the second side 56 of second portion 38. The dimensions of the protective sheet 60 were about 8 inches by 1 inch, creating a finger edge on both sides of the adhesive tape 58 making it easier for the user to peal the sheet 60 off the tape 58 since they can get a fingernail underneath.
With reference now to
While several embodiments of the present invention have been illustrated in the accompanying drawings and described in the foregoing detailed description, it will be understood that the invention is not limited to the embodiments disclosed, but is capable of numerous rearrangements, modifications and substitutions of parts and elements without departing the scope and spirit of the invention.
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Entry |
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STERATAPE LTD Product Data Sheet for Product 2491F pressure sensitive tape. |
Number | Date | Country | |
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20110038662 A1 | Feb 2011 | US |