Floppy disk accommodation device

A floppy disk accommodation device has a synthetic resin sheet for accommodating and storing a plurality of floppy disks in a stable state. The synthetic resin sheet has one or more floppy disk accommodation recesses 3 formed at respective positions thereon. In a lower portion of each floppy disk accommodation recess 3, a bag-like floppy disk detachment-free accommodation section 5 is formed. The surface of the floppy disk accommodation recess 3 is formed, above an upper opening of the accommodation section, with stoppers 6 for preventing detachment of the floppy disk 4. The recess surface is also formed, between the opening of the bag-like floppy disk detachment-free accommodation section 5 and the stoppers 6, with a ridge 7 for providing a gap between the back surface of an upper portion of the accommodated floppy disk 4 and the floppy disk accommodation recess surface.

BACKGROUND OF THE INVENTION 
1. Field of the Invention 
This invention relates to a floppy disk accommodation device for 
accommodating and storing floppy disks and, more particularly, to a floppy 
disk accommodation device which is useful when accommodating a plurality 
of floppy disks in a sheet-like accommodation member and using a plurality 
of such accommodation members bound in a binder 
2. Prior Art 
FIG. 3 shows a floppy disk accommodation device invented earlier by the 
present inventor, and is disclosed in Japanese Utility Model Application 
No. H4-35148. The device comprises a sheet-like member 30 and a film 
member stuck to the member 30 so as to form a bag-like floppy disk 
accommodation section 50 having a top opening 50a. The front surface of 
the sheet-like member 3O is provided, above the top opening 50a of the 
accommodation section 50, with stoppers 30a, which prevent slip-out of a 
floppy disk 20 inserted in the floppy disk accommodation section 50 by 
contacting an upper edge 20a of the floppy disk 20. Further, the front 
surface of the sheet-like member 30 is provided, between the opening 50a 
of the accommodation section 50 and the stoppers 30a, a ridge 30b for 
providing a gap between a portion of the inserted floppy disk 20 adjacent 
the upper edge 20a thereof and the sheet-like member 30. Further, as shown 
in FIG. 4, the rear or back surface of the sheet-like member 30 is 
provided with double sided adhesive tape or similar bonding means. 
When using a plurality of such floppy disk accommodation devices 10 such 
that they are bound in a binder 60 comprising a plurality of binder sheets 
70, as shown in FIG. 5, each floppy disk 20 is inserted in a floppy disk 
accommodation device 10 with its upper edge 20a reliably held in contact 
with the stoppers 30a. 
In the above prior art, the floppy disk can be reliably accommodated 
without possibility of detachment. In addition, it can be very 
conveniently taken out. Despite these useful effects, however, when using 
a plurality of such floppy disk accommodation devices in a binder, an 
operation requiring a great deal of labor and time is required to apply to 
the binder sheet a double sided adhesive tape or similar bonding means 
provided on the rear or back surface of the sheet-like member. 
In another aspect, the function of accommodating the floppy disk is mainly 
provided by the bag-like floppy accommodation section. Therefore, if the 
bag-like member is formed such that it is narrow, although it can reliably 
prevent the detachment of the floppy disk, it is rather difficult to 
insert and remove the floppy disk. If the floppy disk is inserted 
incorrectly, it may cause separation of the sheet-like member and the film 
member of the bag-like accommodation section from the bonded state. 
When the accommodation section is formed loosely, on the other hand, 
although the floppy disk may be readily inserted and taken out, it is 
highly possible that the floppy disk is detached in spite of the presence 
of the stoppers. Therefore, it has been very difficult to form a bag-like 
floppy disk accommodation section which can meet both the requirements 
noted above. 
It may be thought to form the bag-like accommodation section, stoppers and 
ridge noted above such that they are integral with a synthetic resin sheet 
which forms a binder. This arrangement is convenient in that the bonding 
means on the rear or back side of the sheet-like member can be dispensed 
with. In this case, however, the bag-like floppy disk accommodation 
section is provided with a clearance just sufficient to insert and remove 
the floppy disk so that the floppy disk will not be readily detached. 
Therefore, when the floppy disk is inserted, the accommodation section is 
pulled to an extent corresponding to the thickness of the floppy disk, 
resulting in distortion and sagging of the synthetic resin sheet. That is, 
the synthetic resin sheet is in to an uneven state. 
Particularly with a sheet which accommodates a plurality of floppy disks, 
the distortion is seriously great. When such a sheet is used in a binder, 
a considerable thickness is produced. Therefore, the efficiency of 
accommodation is very inferior, and it is impossible to obtain the proper 
function of the binder, which has to satisfactorily permit the arrangement 
and storage of floppy disks. 
Further, the distortion or sagging may be a cause of incapability of nearly 
arranging and storing floppy disks that are accommodated. Moreover, it 
affects the life of the synthetic resin sheet. That is the life of the 
floppy disk accommodation binder is inevitably reduced. 
SUMMARY OF THE INVENTION 
An object of the invention is to provide a floppy disk accommodation device 
which can overcome the drawbacks in the prior art and permit a plurality 
of floppy disks as well as a single floppy disk to be neatly accommodated 
in a sheet-like binder formation member without distortion or sagging 
thereof, as well as being free from the possibility of unnecessarily 
increasing its thickness when it is used in a binder, thus permitting the 
floppy disk to be accommodated in a stable state, perfectly preventing 
detachment of the accommodated floppy disk and more perfectly permitting 
the arrangement and storage of floppy disks.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
FIG. 1 is front view showing a floppy disk a accommodation device according 
to the invention. The device comprises a synthetic resin sheet 2, which 
has a plurality of floppy disk accommodation recesses 3 formed in 
respective positions. The synthetic resin sheet 2 has a top surface, and 
each of the recesses 3 is formed by an opening in the sheet 2 defined by 
edges on the top surface of the sheet 2 and a recess surface in the 
opening located below the top surface, as best seen in FIG. 2. Each floppy 
disk accommodation recess 3 has a size corresponding to the size of the 
floppy disk 4 which is accommodated therein. 
A bag-like floppy disk detachment-free accommodation section 5 is formed by 
bonding a soft synthetic resin film to the edges of a lower portion of 
each floppy disk accommodation recess 3, except for an upper open edge 5a. 
The detachment of the floppy disk 4 toward the front is thus prevented. 
A portion of the surface of the floppy disk accommodation recess 3 is 
formed, above the opening of the bag-like floppy disk detachment-free 
accommodation section 5, with stoppers 6 for preventing the detachment of 
the floppy disk. The stoppers 6 are adapted to be in contact with the 
upper edge of the accommodated floppy disk 4, thus preventing upward 
detachment thereof. 
A portion of the surface of the floppy disk accommodation recess 3 is 
formed, between the bag-like floppy disk detachment-free accommodation 
section 5 and the stoppers 6, with a ridge 7 to provide a gap between the 
back surface of an upper portion of the accommodated floppy disk 4 and the 
surface of the floppy disk accommodation recess 3, thus permitting the 
accommodated floppy disk 4 to be readily taken hold of when removing the 
floppy disk 4. 
Designated at 8 are holes for forming a binder. 
In this embodiment, the floppy disk accommodation recesses 3, stoppers 6 
and ridges 7 are formed integrally in and on the synthetic resin sheet 2. 
In the above structure, the floppy disk 4 can be accommodated by inserting 
it in the bag-like floppy disk detachment-free accommodation section 5 
from the top edge opening 5a thereof. Thus, a plurality of floppy disks 
can be accommodated neatly in the respective floppy disk accommodation 
recesses 3 in a stable state and without pulling the bag-like floppy disk 
detachment-free accommodation sections. 
The detachment of the floppy disk toward the front is prevented by the 
accommodation section 5, and upward detachment is prevented by the 
stoppers 6. 
Further, the floppy disk can be readily and smoothly taken out owing to the 
gap provided by the ridge 7. 
As has been described in the foregoing, the floppy disk accommodation 
device according to the invention comprises a sheet-like member having one 
or more floppy disk accommodation recesses, a film member bonded to the 
edges of a lower portion of each floppy disk accommodation recess except 
for an upper open edge, thus forming a bag-like disk detachment-free 
accommodation section having an upper open edge, stopper means formed on 
the surface of the floppy disk accommodation recess above the upper open 
edge of the bag-like floppy disk detachment-free accommodation section, 
the stopper means serving to be in contact with the upper edge of a floppy 
disk accommodated in the floppy disk accommodation recess, and thus 
prevent detachment of the floppy disk, and ridge means formed on the 
surface of the floppy disk accommodation recess between the upper open 
edge of the bag-like floppy disk detachment-free accommodation section and 
the stopper means so as to provide a gap between the back surface of an 
upper portion of the accommodated floppy disk and the surface of the 
floppy disk accommodation recess. Thus, in the case of accommodating a 
single floppy disk or a plurality of floppy disks, due to the presence of 
the floppy disk accommodation recess or recesses, unlike the prior art 
there is no possibility that the bag-like floppy disk accommodation 
section is pulled so as to result in distortion or sagging of the 
sheet-like member. 
Further, since there is no possibility of breakage of the bag-like floppy 
disk accommodation section, the accommodated floppy disk can be protected 
in a stable state without the possibility of breakage or contamination 
thereof. Further, when the device is used in a binder, unlike the prior 
art, there is no possibility of great distortion or sagging of each 
constituent sheet-like member of the binder. That is, there is no 
possibility of increasing the binder thickness in a disorderly fashion and 
bringing about a situation that has to be avoided to the utmost with this 
kind of binder, which is required has to neatly arrange and store floppy 
disks. It is thus possible to provide a floppy disk accommodation binder 
which can accommodate floppy disks in a neatly arranged state and has a 
high accommodation efficiency. 
Further, according to the invention, unlike the prior art, there is no need 
of any base sheet or bonding means for bonding such a base sheet. Further, 
the device can be manufactured as a one-piece molding, accurately and 
highly efficiently.