"Portable container for blister containing products in the form of tablets or the like" * * * * * DESCRIPTION The present invention concerns a portable container for blister containing products in the form of tablets or the like. Portable containers for blisters are known which are made up of a pair of pierced plates hinged to each other, including closing means such as to define an open and a closed position (EP-1302188). In said containers the blister is placed between the two pierced plates, the holes corresponding with the protrusions of the blister where the tablets are housed. Considering the closed container with the blister on its inside, it is possible to expel a tablet from the blister by exerting a pressure with a finger directly on the protrusion of the blister with the tablet on its inside. The finger is in direct contact with the blister thanks to the holes of the top plate of the container. If the blister has a covering of thin material, for example aluminium, and not of plastic, it is possible that during transport said diin material gets damaged thus causing the scratching of the tablets. Especially in the case in which the tablets are medicines, it is quite dangerous that there is the aforesaid possibility of scratching. In addition containers for blister of the afore mentioned type are known but with the top part having a series of sliding buttons (WO-03088891) corresponding with the protrusions of the blister in which the tablets are housed. The expulsion of the tablet takes place through these buttons which therefore provide a certain protection to the blister. The finger does not operate directly on the protrusion, but it does it through said buttons. This latter solution however is not of simple provision and it involves a considerable increase in weight and volume, elements not to be neglected since it is a portable container. Object of the present invention is to provide a portable container for blister which adequately protects the covering of the blister, which is light, easy to handle, simple and small in volume, therefore capable to obviate the problems cited above. According to the invention such object is attained with a portable container for blister containing products in the form of tablets or the like, characterised in that it comprises a top part of compact, solid but soft material, with covered cavities for the housing of protrusions of the blister in which the products are housed, and a bottom part made up of a plate that is rigid, resistant, couplable to and uncouplable from the top part, provided with holes at said cavities of the top part. The type of material used for the top part also allows to protect the blister yet maintaining the possibility to extract a tablet contained therein by simple pressure of a finger to the zones of the top part under which there are the protrusions of the blister in which there are said tablets. The characteristics of the present invention will be made more evident by the following detailed description of an embodiment thereof which is illustrated as a non limiting example in the enclosed drawings, in which: Figure 1 shows an axonometry view of the container according to the present invention; Figure 2 shows an axonometry view of blister insertable into the container according to the present invention; Figure 3 shows a top plan view of the blister in Figure 2; Figure 4 shows a side view of the blister; Figure 5 shows a top view of the container; Figure 6 shows a front view of the container without blister; Figure 7 shows a top plan view of part of the container; Figure 8 shows a bottom plan view of the top part of the container; Figure 9 shows a top plan view of the bottom part of the container; Figure 10 shows a section view according to the line X-X in Figure 7; Figure 11 shows a section view according to the line XI-XI in Figure 9; Figure 12 shows a front view of the top part of the container; Figure 13 shows a front view of the bottom part of the container; Figure 14 shows a section view according to the line XIV-XIV in Figure 1 , with the blister and the tablets inside. In the drawings a container 10 for a blister 3 is shown, comprising a top part 1 and a bottom part 2 couplable and uncouplable as regards said top part 1. The top part 1 is provided with not very deep top recessions 4 and with bottom cavities 5 useful to house protrusions 11 of the blister 3. The top part 1 is shaped in such a way as to define a pair of guides 6 on the bottom with which the ends of the bottom part 2 are slidingly associated. The guides 6 can be made as a single piece with the top part or can be made of a different material opportunely fastened to the aforesaid top part. The bottom part 2 comprises holes 7 below the cavities 5 of the top part 1 for the passage of tablets 8 following the expulsion from the blister 3. The insertion/disinsertion of the blister 3 in the container is quite simple. ' Let's consider the container in the situation of Figure 1 but without blister 3 inside. The bottom part 2 gets pulled out by making it slide along the guides 6; therefore the blister 3 is positioned on the top part 2, turned upside down for the occasion, in such a way as to house the protrusions 11 into the cavities 5; finally the bottom part 2 is inserted again under the top part 1 (or better above it since the top part 1 has been turned upside down) so that the protrusions 11 get positioned at the holes 7 of the bottom part 2 (Figure 14). If one wants to expel a tablet 8 it is sufficient to exert pressure by a finger on a recess 4. The tablet 8 will break the bottom layer of the blister 3 and it will exit the container 10 through one of the holes 7. The material of which the top part 1 is made is solid, compact but soft. These characteristics allow the aforesaid expulsion of the tablet 8 by simple pressure and a greater protection of the blister 3 during the transport of the container 10.