FR2474400A1 - Telescopic device for gripping edges of sheets - uses combinations of tubes and spacers with outer ends released for inserting sheets - Google Patents

Abstract

The device for gripping sheets or pages by their edges so as to support them, uses telescopic tubes (1) which can be extended to match the length of the sheets, which can then be gripped in the ring between them. Plugs are inserted into the smaller ends of the end tubes, and a resilient band is fitted around those ends to hold them together. The band is removed for easy insertion of the sheets, then the band is fitted on again. The large ends of the tubes at the other end fit into a cylindrical case (6). Two or three tubes can be used with telescopic spacer blocks (7) with concave faces (8,9) to match the outsides of the tubes, in various combinations. A single tube can be used with a crescent shaped spacer.

Description

Portable telescopic device for reading documents.

- The present invention relates to instruments of the "document holder" type
allowing to bind and stiffen documents by their margin.

- There are devices allowing other techniques to obtain a
similar result by pinching the sheets of paper between two boards
of wood or by affixing the leaves on a board fitted with tongs in
the upper part. Such devices are difficult to use and can not
can be transported due to their size.

- The device according to the invention avoids these drawbacks. With
this one, it is possible by retracting it, to bring it back to a volume in
lower than that of a glasses case and of low weight.

- This device consists of: - a handle of variable shape: cylindrical,
oval, parallelepipedic ... whose role is on the one hand to allow the
maintaining said device in the reading position, and on the other hand
nir assembled the telescopic elements used to hold documents.

- telescopic tubes, the number of which can
vary, being at least one, depending on the type of section used and the
arrangement of these also varying. In the case of an achievement
with a single tube, a longitudinal slot would allow -by retaining the
principle of "tau" - the maintenance of documents. Furthermore we can envisioned
ger to join 3 cylindrical tubes each of which has 2 tangents
common with the 2 others, their contact points form a vice and
re-tighten documents longitudinally.

 To optimize the vice principle, the telescopic tubes forming, in the deployed position, several cones whose ends deviate more and more, it is advisable to compensate for this enlargement to separate each of the tubes at their base by the through a conical spacer. This makes it possible to obtain permanent longitudinal contact between the tubes.

 According to this principle of tightening, the device can comprise only two cylindrical tubes placed inside the handle, either on the sides and joined together, or diametrically opposite with a separation, the complementary element or elements following exactly the external curve of the said tubes to play the essential role of vice. It is also possible to envisage two semi-cylindrical tubes whose clamping zone will then be rectilinear.

Given that these tubes can be other than cylindrical and give the same desired tightening result. Multiple combinations can therefore be carried out since it is possible to vary not only the number and the arrangement of the telescopic tubes, but also the section of the tubes between them.

To clamp the tubes in their upper part, in the deployed position, there is an assembly device located on the upper end of the narrowest telescopic section, which implies a stop system on these said ends of the ball or flat type. .

 In the retracted position, this clamping device acts as a retainer when the tubes are folded back into the handle.

 Given that this clamping device can have variable shapes, washers, hooks, clips made of natural or synthetic materials.

To allow better retention of the documents inserted in the device, anti-slip systems can be provided, such as striations in the structure of the device, addition of a natural or synthetic foreign material, such as rubber.

 In order to obtain rapid deployment and without manipulation other than the triggering of an automatic system, provision may be made for the installation of springs inside each of the tubes. A simple press button ensuring deployment.

A system can be envisaged, the role of which would be, on the one hand to facilitate the insertion of the documents and on the other hand to allow the tubes to be bent in their deployed position. To do this, there is provided at the base of the sections making up each tube, a folding means of the hinge type, ball joint.

Given that, on the one hand, this folding system may only be provided on certain sections and that, on the other hand, it is sufficient not to deploy each section entirely in order to keep the device rigid.

Attached to each other, the telescopic tubes are connected together in their lower part and embedded in a handle, for example made of plastic, to allow a better grip. To be operational, simply pull the telescopic tubes by deploying them to the desired height, according to the dimensions of the documents to be bound
Then insert the sheets of paper between the tubes and loop the top of them, either with the clasp that assembles the tube heads between them.

 The documents are thus pinched between the tubes over their entire length and can be easily scanned by holding the handle located in the lower part of the telescopic tubes with one hand and with the other, the angle or the opposite side of the document .

 The device; object of the invention, can be used in all cases where the manipulation of a document becomes difficult due to its too large size. Example, manipulation for reading a newspaper or a road map in a place where space is limited, metro, car.

 Other applications are also possible for temporarily binding documents to be examined, such as copies of student courses or notes on free sheets.

A few embodiments are given by way of non-limiting examples, referring to the attached drawings.

Fig. 1 - a section of the device;
Fig. 2 - top view of the device with schematic section
Fig. 3, 4, 5 - sectional view of different embodiments.

 Figure 1 shows a section of the device, it comprising the sections (1) (2) (3) (4) (5) of the telescopic tubes, which are fitted into the handle (6) in the retracted position. Concave parts may be provided on this handle to allow good grip and positioning of the user's fingers. The clasp (10) consists of a rubber washer and blocks the entire device. The retainers (11) ensure the closure of the clasp.

 FIG. 2 represents an embodiment, seen from above, comprising 3 tubes (1) (2) (3) with their three points of contact (a) (b) (c). These tubes have their respective bases inserted and attached to the inside of the handle.

In the deployed position, they are slightly apart to allow documents to be inserted easily. They acquire their position of use, -because they have been blocked with a clasp (10) - by a longitudinal contact which ensures the maintenance of said documents. The retainers (11) being located on the upper end of each of the tubes.

FIG. 3 represents a second embodiment. Two telescopic tubes (1) (2) placed on the side and inside the handle (6) are perfectly attached to the part (7) itself telescopic and whose contours (8) and (9) match the arcs of the circles of the telescopic tee tubes (1) (2) which are facing each other to allow them to be held in position when the documents are placed in position.

 Figure 4 gives a third embodiment where the telescopic tubes (1) and (2) placed symmetrically overlap in the contours of the telescopic tubes (12) and (13). The documents are in the form of an "S", passing either between the interstices (14) and (15), or (16) and (17).

FIG. 5 gives a fourth embodiment. Two telescopic tubes, the sections of which have a crescent shape (18) and (19) are nested on either side of a third telescopic tube (20) placed in the center of the handle (21), the latter being oval to receive the three tubes. Here the documents can go around the central tube and also be held by the two crescents.

 FIG. 6 shows a fifth type of embodiment A telescopic tube (22) of large crescent-shaped section inside which partially accommodates a cylindrical telescopic tube (23).

 In this case, the documents must go around the tube (23) and are retained under pressure by the tube (22). The assembly can, in any case, retract inside the handle (24).

 The present invention can be used to facilitate the reading of large format newspapers, road maps or other documents requiring a removable binding.

Claims (8)

1 - Device for keeping documents by their margin on  their full height to facilitate their reading, characterized by the because it has telescopic tubes whose combination of  number, arrangement and section, determine a principle "of vice", and whose retraction inside the handle makes it carried tif. 2 - Device for maintaining documents, according to claim  1, characterized in that the sections are either of identical form ticks, either of varying forms. 3 - Device for maintaining documents, according to claim  1, characterized in that in the deployed position, the telescopic tubes that are joined longitudinally, which optimizes the maintenance of  documents. 4 - Device for maintaining documents, according to claim 1, characterized in that the telescopic tubes are connected  between them in their lower part and either drowned in the handle or  fixed by means of a spacer. 5 - Device for maintaining documents, according to claim  1, characterized in that the telescopic tubes are assembled  at their upper ends by a clamping system serving clasp type: washer, hook, clip. 6 - Device for maintaining documents, according to claim  1, characterized in that on the upper ends of the tubes telescopic, there is a stop system such as ball, dish,  ensuring the closure of the clasp, either in the deployed position or  in the retracted position. 7 - Device for maintaining documents, according to claim 1, characterized in that the bodies of the tubes comprise either  streaks, or non-slip elements specific to the material used,  is reported to said elements to ensure better resistance of  documents. 8 - Device for maintaining documents, according to claim  1, characterized in that the telescopic tubes comprise at the  base of each section a folding system of the hinge type, ball joint  to facilitate the folding and insertion of documents.