The invention relates to an EDP diskette holder comprising a pocket with a rear wall, a front wall, two side walls and possibly also a bottom wall, whereby the side walls have a largest width corresponding to the thickness of the diskette, and whereby the front wall and/or rear wall of the pocket consists of a rigid, resilient material, such as thin plastic sheet, and where at .least one hollow pin, extending into the pocket, is pro¬ truding from at least one of the pocket walls. US-PS 4,691,826 discloses such holder, which is provided with pins extending into the pocket. Said pins serve to tilt out the diskette from the pocket, so that it is released from the top wall of the pocket which otherwise efficiently prevents the diskette from falling out when the pocket bottom is turned upside down.

EP publication No. 0,414,306 discloses the location of a radial elastic peg arrangement engageable in a hole of a CD diskette in a CD storage cassette. The diskette, however, cannot be fastened on the peg until the holder lid has been opened.

It is the purpose of the present invention to provide an EDP diskette holder of the aforementioned kind which is more suitable to keep EDP diskettes or socalled floppy diskettes in place than the known holders, even if the diskette removal opening of the holder pocket remains open, and without the necessity of a lid on the pocket having to be opened when a diskette shall be inserted or removed.

This purpose is achieved by the holder according to the invention which is characterized in that the plastic sheet is of a deformable kind, such as plastic material, deformable polystyrene or hard PVC or of elastically defor¬ mable polypropylene, that the pin is completely or partly cone shaped, that the outermost end of the hollow pin located inside the pocket has such reduced thickness of material that it is subject to a deformation corresponding to the compressive stress at a predetermined compressive

stress locally at said outermost end, said deformation being plastical with crack formations by crispy plastics and being elastic by the elastically deformable plastics. The selection of sheet material and the form for said pin in the holder pocket is partly causing the diskette to be easy to insert into the pocket, and partly causing the diskette already inserted in the pocket to stay in place, even if the pocket is turned upside down. This is presumably due to the fact that the outermost end of the pin of a minor thickness of material easily yields and permits the insertion of the diskette into the pocket without the outer end of the pin loosing its ability to enter a firm engagement with a corresponding recess or a hole in the diskette for fastening of the diskette in the pocket.

In case a crispy plastic is selected as the deformable sheet material, a local plastic deformation of the crispy pin point followed by a minor crack formation is taking place when the pin jumps into a hole or a recess in the diskette, and this can be observed as a local op- alization if e.g. the plastic was transparent, or as a lighter point zone in case of e.g. coloured plastic. This engagement is adapting in a form-fit or tight fitting way to the form of said hole or recess, so that the diskette even by a small compressive stress between pin and diskette is secured quite powerfully. This is of importance when the holder is used for storing or shipping packaging for the diskette, where a firm securing is needed. When the diskette is removed for the first time from a holder of this kind, the pin will be further deformed, so that the degree of securing is reduced next time the diskette is inserted in the holder. This characteristic is practical seen from the user's point of view, since the securing should only prevent the diskette from falling out when the holder is turned upside down. Thus, by selecting a crispy plastic two different degrees of securing is achieved, whereas only one degree of securing is achieved by the

selection of elastically deformable plastic. On the other hand the reduced thickness of yieldable material in the outermost pin end is causing the dome or cone shaped outer¬ most pin end to flex or jump temporarily backwards into the hollow interior of the pin by a compressive stress, i.e. during the insertion of the diskette in the pocket, and the pin outermost end again jumping out into a hole when it is located in front of the hole in the diskette, for securing engagement herewith. The invention will now be described in more detail in connection with some embodiments and with reference to the drawing in which Fig. 1 shows a holder for a single diskette, Fig. 2 a longitudinal section through the pocket and one of its diskette engaging pins,

Fig. 3 a longitudinal section through another embodiment, Fig. 4 a section through one of the pins of a pocket and diskette opening in engagement herewith, and Fig. 5-8 different embodiments of engagement pins. Fig. 1 shows a holder for a single diskette, said holder comprising a pocket with a rear wall 2, a front wall 4, two side walls 6 and a bottom wall 8, whereby the side walls 6 have a width 10 corresponding to the thickness of the diskette. The rear wall 2 and/or front wall 4 of the pocket is made of a rigid resilient material, such as plastic sheet, and in the shown example two pins 12 are arranged protruding into the pocket from the rear wall 2 thereof. The pins 12 may be completely or partly cone shaped, and in the shown example each pin is cone shaped with a rounded point. The length 14 of the pins 12 are shorter than half the width 10 of a side wall 6, i.e. the pin in the pocket is protruding less than half the internal width thereof into the pocket.

The pocket module shown in Figs. 1 and 2 is shaped by a vacuum forming operation of a thin plastic sheet 16 so that the rear wall 2 of the pocket internally has a smooth surface, and each pin 12 being swaged or

squeezed out of the wall material per se.

Thereby each pin 12 becomes hollow, and by a special vacuum forming technique the outermost end of the pin 12 may, if desired, be provided with a smaller material thickness than the remaining part of the pin. This may be preferred if it is desired to make the pin able to adapt itself to an engageable recess or an opening in the diskette being inserted in the pocket. The smaller material thickness causes the end of the pin easier to be deformed and engage recesses and openings.

When the pins 12 are arranged at random in the pocket on its rear wall 2, front wall 4 or side walls 6, and a diskette is inserted into the pocket, one or more of the pins 12 engage/s the diskette when they hit a recess or an opening therein. In this case the diskette need not be inserted further into the pocket, seeng that the pin/s 12 will hold the diskette in place therein.

A common feature for all pockets is that the diskettes are inserted in the pockets between their front- and rear wall and are kept in place there by means of one or more protruding pins 12. When standard diskettes are used, each pin is preferably located in the pocket corre¬ sponding to the position of a hole or a recess in a diskette thus inserted in the pocket. By locating the pins 12 near the bottom 8 of the pocket as shown in Figs. 1 and 2, it can be safeguarded that a diskette inserted therein has almost reached the bottom of the pocket before it obtains its engagement with the pins 12, if the openings of the diskette are located near the diskette edge to be located at the bottom 8 of the pocket.

Fig. 3 shows another pocket embodiment being adapted to be glued to a resilient carrier sheet, such as a side in a photo album. The rear wall 2 of the pocket then supports the whole pocket via the side walls 6 and the bottom wall 8.

Fig. 4 shows a pin 12 in engagement with an opening in a diskette inserted into a pocket. As will

appear, the pin 12 protrudes into the pocket with the length 14 and fur heron into an opening in the diskette. Thereby the diskette is secured in the pocket which may be turned upside down without the diskette falling out. As will appear, the outermost end of the pin has a cross section being smaller than the corresponding cross section of a recess in the diskette, but in Fig. 4 the recess is a throughgoing hole in the diskette.

From Figs. 1-3 it appears that the side walls 6 of the pocket are practically triangular and as shown in Fig. 2 at the top thereof comprise a top angle V of between 1 and 12 degrees. A preferred angle size is 1,8 degrees.

The pin/s 12 may be arranged protruding out into the pocket from the side walls 6 of the pocket or from its front wall 4, if only the wall in question if of a resili¬ ent material permitting the pin to perform a certain travel during the insertion of a diskette in the pocket. In the shown embodiments the pin 12 is, however, located inter¬ nally on the rear wall 2 of the pocket. This implies that the rear wall of the pocket is of a resilient material. The location of the pin on this rear wall or on the wall on which it is arranged, does not only depend on the openings or the recesses in the diskette, but also depends on the elasticity and stiffness of the wall. Thus, if the wall is very rigid, the pins 12 may preferably be arranged in the middle of the wall, where the elasticity of the wall provides the pins 12 with their largest travel possibility in addition to the point deformation length of the pin. In case the wall is not particularly rigid, but is elastic or resilient, it may be preferred to arrange the pins near the wall edges or corners where the stiffness naturally is the highest.

Turning now to the front wall 4 of the pocket, this has normally the same width as the rear wall 2, however a smaller height 17 than the corresponding height 18 of the rear wall, preferably one third thereof.

Fig. 5 shows at an enlarged scale a pin 12 which

according to the invention has cone shape between the ends of the pin, here cone shaped in small zones at its root and top. The thickness 20 of material of the outermost end of the pin 12 is by a vacuum forming shaped so that it becomes thinner than the material thickness 22 of the pin in other places. The shown pin is almost cylindrical at its root and then extending to a dome shaped end.

Fig. 6 shows a pin which practically is only of dome shape. This means that it is construed of infinitesi- mal cone shaped pieces for the formation of a part of its dome shape between the ends of the pin.

Fig. 7 shows a practically complete cone shape for the pin 12, and Fig. 8 shows a cone shaped part joined with a typically dome shaped part.