Supports – Easel; book – copy or music score holder – Adjustable operative size
Patent
1994-02-01
1997-06-03
Chan, Korie
Supports
Easel; book, copy or music score holder
Adjustable operative size
248452, 248453, A47B 9704
Patent
active
056346239
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a fixing device fop a publication, such as a book or a magazine, comprising two supports slidable relative to each other and accommodating the publication, which supports are covered with a deformable material holding the pages of the publication.
BACKGROUND OF THE INVENTION
Such a device is known from U.S. Pat. No. 1,953,560. During the reading of books, particularly in the case of handicapped people or when the person is lying down, there is always a need to hold the book or other publication open in the correct position without holding the book oneself. This applies in particular if a person is trying to read a book lying down, when it is then above or beside the reader's head.
In the abovementioned U.S. Pat. No. it is proposed that the deformable material should be a rubber spongy material. Such a readily deformable material will compress through the stiffness of the pages of the publications, and in this way all pages are held in place. All pages are in this case held by friction between the rubber-like material and the pages. Problems occur when a page has to be turned. At the place where the page is removed, the deformation will be only partially removed, while it is not possible to produce a further deformation at the place where a new page is placed, because a single page is not sufficiently stiff to do this.
It has been found that for limp, thin publications in particular insufficient friction is produced by the rubber material. Besides, the force is applied in particular to the part of the page which is close to the cover of the publications and against their middle part, so that there are always difficulties when turning over the page. This means that this fixing device is not able to support the book, i.e. keep it suspended in a position above the head. The object of the invention is to avoid this disadvantage.
SUMMARY OF THE INVENTION
This object is achieved in the case of a fixing device of the type described above in that the deformable material comprises a multiplicity of hairs, and the pages have to be confined between the hairs. The invention is based on the idea of no longer holding the pages in place through a frictional grip of a readily deformable material, but by using hairs to provide a positive locking of the pages, and in particular the pages near the open pages. A page will tilt the hairs slightly and slide along them when it is being turned over. When the hairs spring back the next page is blocked. The page added to a number of pages will also turn over the hairs and be blocked by the hairs springing back. The book is now no longer supported by the friction between the deformable material and the pages, but by the force which is necessary to tilt the hairs. Since it is still possible to provide a very large number of hairs, such a force can be relatively great. This means that it is now possible to place, for example, a book in really all positions relative to the reader, even inverted above his head.
According to an advantageous embodiment of the invention, the hairs are directed in the opposite direction to that for detaching a sheet or page. This makes it simpler to add a page to a number of pages than to remove a page from them. The blocking effect with the hairs is reinforced in this way.
According to another advantageous embodiment of the invention, the hairs are disposed on a carrier, which carrier is then fixed to the support. In other words, parts with hairs can be removed from a larger sheet and fixed to the above mentioned supports.
Although the hairs, fixed on the carriers or otherwise, can comprise all hair types known in the prior art, it is preferable for the hairs to be brush hairs. Brush hairs are readily available and can be processed by conventional technology, and they are found to give the optimum result at a relatively low price.
In order also to be able to accommodate books and similar publications where there is a cover which has a greater spread than the measurement of the pages, according t
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patent: 4318527 (1982-03-01), Smith
patent: 4470571 (1984-09-01), Hartman
patent: 4502657 (1985-03-01), Monfort
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