Special receptacle or package – Combined or convertible – Including booklet – leaflet or record means
Reexamination Certificate
2002-02-01
2003-12-30
Luong, Shian (Department: 3728)
Special receptacle or package
Combined or convertible
Including booklet, leaflet or record means
C206S387130
Reexamination Certificate
active
06669014
ABSTRACT:
TECHNICAL FIELD
This invention relates to a storage case for protecting a magnetic tape cassette, such as a digital video cassette or the like.
BACKGROUND ART
Among various broadcasting apparatuses used in a broadcasting station or the like, a compact and portable digital video camera has been recently used as a TV camera exclusively for news gathering by video recording. This type of camera has been used by many cameramen in the broadcasting station and specialists in a field of video recording, etc. because high grade pictures can be obtained by digital signal processing with this type of camera, even though it is of small-size.
Three types of digital video cassettes(DVC) having different recording times have been used for loading in this portable digital video camera. They are encased in three different cases respectively to be sold on market.
The magnetic tape cassette such as the digital video cassette or the like has been used in many cases, for recording such matters as important on business, for example, for video recording on the actual spot of news gathering, for reproducing thereafter in the broadcasting station for editorial purpose, etc. For this reason, an information of record accompanying the video record is also important, and often contained in the same storage case to carry it with the magnetic tape cassette. By treating the record information in this way, an indication of the video record contained in the magnetic tape cassette, related information on the actual spot, etc. can be easily confirmed by referring to the contents of the video record afterward at a meeting or so.
Conventionally, the video record information of this type has been usually indicated on a label attached to a surface of the magnetic tape cassette and the storage case, or on a sheet or a leaflet inserted into a gap in the storage case. However, since the storage case has a thickness for containing only the magnetic tape cassette, only a small amount of the information sheets can be stored together with the magnetic tape cassette.
It is conceived, therefore, to widen the gap d for containing the information sheets between a storing portion
1
and a lid portion
2
of the case as shown in FIG.
1
. For preventing the magnetic tape cassette from moving in a stored state, a plurality of ribs
4
are projectingly formed at inner side walls of the lid portion
2
to press a peripheral edge of the magnetic tape cassette
3
toward the storing portion
1
. By making these ribs
4
higher, the gap d can be widened.
However, the information sheets
5
contained in the gap d are not fixed in this arrangement. In case where a number of the sheets are overlapped, the information sheets
5
will jump out when the lid portion
2
is opened, or edges of the sheets are folded or protrude out of the case since the sheets are not fixed in a position. This makes the lid portion inoperable to be locked into a closed position. This arrangement is thus inconvenient in use. This is a first problem of the conventional cassette case.
In addition to this, the conventional storage case for storing the magnetic tape cassette is formed compact according to an outer dimension of the magnetic tape cassette. As shown in
FIG. 2
, it consists of a storing portion
101
, a lid portion
108
connected by means of a connecting piece
107
at a longitudinal side of the storing portion
101
, all of which are integrally formed of synthetic resin, and adapted to be opened or closed by means of thin portions
109
which are formed along edges between the storing portion
101
and the connecting piece
107
as well as between the connecting piece
107
and the lid portion
108
.
However, in the magnetic tape cassette storage case of this type a thickness of the resin is considerably thin. Especially at the side of the storing portion
101
, lateral walls for holding the cassette are simply formed upright at the four corners of a bottom plate of a flat plate, and when external forces are applied in the longitudinal direction of the storing portion
101
as shown by arrows in
FIG. 2
, the storing portion
101
swells outward as shown by a dotted line, as a so-called open-mouth phenomenon, thus causing inconveniences, for example, dust prevention property falls, external forces are exerted on the magnetic tape cassette contained inside, locking is easily disengaged to make the magnetic tape cassette slip off, and so on.
The magnetic tape cassette as above described is provided at both sides of the storing portion and the lid portion with locking projections and locking recesses which are adapted to elastically engage with each other in a closed state. In spite of provision of such locking mechanism, the above described open-mouth phenomenon has occurred due to elasticity of the resin.
Although such deflection can be overcome by thickening the resin to increase rigidity, this will incur an increase of cost for materials for molding, and cost for exterior package will be higher as compared with cost for the product. Moreover, the external appearance will not be so good in this case.
Further, a back label having a bar code is often attached to a back face of the magnetic tape cassette. Through the storage case which is transparently formed, the bar code on the back label of the magnetic tape cassette can be read from the outside. In such a case, if the locking mechanism is provided in a position where the open-mouth phenomenon occurs, the locking mechanism will be an obstacle for reading, or the reading area on the bar code deforms due to elastic deformation by locking, thus resulting in imperfect reading. This is a second problem of the conventional cassette case.
Further, a magnetic tape cassette is usually stored in a magnetic tape cassette storage case in order to protect the magnetic tape cassette from dust or a shock from the exterior.
FIGS. 3 and 4
show such a conventional magnetic tape cassette storage case, of which
FIG. 3
is a perspective view and
FIG. 4
is a sectional view taken along a line A—A in FIG.
3
.
This type of magnetic tape cassette storage case
201
comprises a storing portion
204
provided with lateral walls
205
, a lid portion
202
, and a connecting piece
203
for connecting the storing portion
204
and the lid portion
202
, all of which are integrally formed of synthetic resin. This magnetic tape cassette storage case
201
is provided with a transparent sheet
206
so as to cover apart of the lid portion
202
and the connecting piece
203
. The transparent sheet
206
is stretchingly provided with its one side edge
206
a
welded to the lid portion
202
of the case
201
and with its other side edge
206
b
welded to the storing portion
204
. Information sheets such as a label, a record memorandum or the like are inserted between the transparent sheet
206
and the lid portion
202
for storage.
In the conventional magnetic tape cassette storage case
201
, the transparent sheet
206
covers only a part of the lid portion
202
and the connecting piece
203
(about one-third of the lid portion
202
in FIG.
3
). Therefore, in case where the information sheet to be inserted has a size as large as the case
201
, the information sheet will protrude out of the sheet
206
. Therefore, when something touches a portion of the information sheet, there may be a fear that the information sheet slips out due to friction from between the sheet
206
and the lid portion
202
. Even when the information sheet is completely inserted between the transparent sheet
206
and the lid portion
202
, the information sheet, if it is thin, may come out from between the transparent sheet
206
and the lid portion
202
while carrying the case. This is a third problem of the conventional cassette case.
DISCLOSURE OF THE INVENTION
It is an object of the present invention to solve the above-mentioned problem of the conventional art.
In particularly, an object of a first aspect of the present invention is to overcome the above described first problem, and to provide a magnetic tape cassette storage case which can
Hiraguchi Kazuo
Morita Kiyoo
Onmori Shozo
Fuji Photo Film Co. , Ltd.
Luong Shian
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