JP2587357Y2 - Ink ribbon cassette case - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case of an ink ribbon cassette used by being mounted on a printer or the like.

[0002]

2. Description of the Related Art The case of a conventional ink ribbon cassette has a structure in which a case body and a cover are in close contact with each other, so that when the cover is fitted, a gap between the cover and the case body is formed. In some cases, the user inserts the ink ribbon into the printer without noticing the ink ribbon, causing trouble during printing. This is, of course, a problem during the assembly of the producer,
In recent years, an ink ribbon cassette has become available in which the ink ribbon can be replaced by reusing a case in order to reduce waste from the viewpoint of environmental protection, and such an ink ribbon cassette is used by consumers. In this case, since the consumer himself / herself must fit the lid after exchanging the ink ribbon, it is a matter of course for the consumer.

[0003]

Accordingly, the present invention is directed to an ink ribbon cover which is free from the risk of pinching the ink ribbon when the producer attaches the lid to the case body at the time of assembly and after the consumer replaces the ink ribbon. To provide a set of cases.

[0004]

In order to achieve the above object, in the case of the ink ribbon cassette of the present invention, in the case of the ink ribbon cassette comprising a case body 1 and a lid 2 detachable from the case body, 1 or the specific portion of the lid 2 is made to protrude as compared with the other portions, and a gap corresponding to the above-mentioned amount of projection of the specific portion or the gap 3 close to the value is formed in the fitting state of the case main body 1 and the lid 2. It is formed between the case body 1 and the lid 2.

[0005]

The gap 3 provided between the case body 1 and the lid 2 prevents the ink ribbon from being pinched.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; 1 and 2 show an embodiment of a structure in which the case body 1 and the lid 2 are fitted together by the boss 6. FIG. 1 shows a state in which the case body 1 and the lid 2 are separated. Is shown. The case body 1 has a top end face 7 slightly higher than the upper edge of the outer wall 4 or the inner wall 5 at a plurality of specific portions such as corners of the outer wall 4 and the inner wall 5, and a fitting hole 8 is provided in the top end face 7. Further, a boss 6 provided with a notched slope 10 at the end of the top end face 7 is protrudingly provided. On the other hand, the lid 2 has a plate shape with no wall on the periphery, and pins 9 which can be inserted into and removed from the fitting holes 8 are protruded at a plurality of locations on the inner surface corresponding to the bosses 6 of the case body 1. .

Next, FIG. 2 shows a state in which the lid 2 is fitted to the case body 1. The cover 2 is fixed to the case body 1 by inserting the pins 9 into the fitting holes 8 of the boss 6, but the boss 6 of the case body 1 is provided between the case body 1 and the cover 2. A gap 3 having a width corresponding to an amount protruding above the upper edge of the outer wall 4 or the inner wall 5 of the main body 1 is generated. Further, a gap 11 is formed between a part of the boss 6 and the lid 2 due to the above-described notched slope portion 10.

FIG. 3 shows another embodiment in which the case body 1 and the lid 2 are locked, in which the case body 1 and the lid 2 are separated. The hook pieces 12 provided on the cover 2 are engaged with the locking grooves 13 provided on the case body 1 so that the cover 2 is fixed to the case body 1. The case main body 1 is provided with a projecting piece 14 whose top end surface is higher than the upper edge of the outer wall 4 or the inner wall 5 at a plurality of specific portions such as corners of the outer wall 4 and the inner wall 5.
And a rib 15 having the same height as the inner wall 5 is provided. On the other hand, the lid 2 has a plate shape with no wall on the peripheral edge, and the tip of the protruding piece 14 is fitted to a plurality of locations on the inner surface corresponding to the protruding piece 14 of the case body 1 to prevent misalignment. A groove 16 is provided. Although not shown, in a state where the case body 1 and the lid 2 are fitted, this corresponds to a value obtained by subtracting the length of the tip end of the projecting piece 14 immersed in the positioning groove 16 from the height of the projecting piece 14. A gap is generated between the case body 1 and the lid 2.

[0009]

[Effects of the Invention] The present invention is as described above. When the producer fits the lid to the case body at the time of assembling and after the consumer replaces the ink ribbon, the case body and the lid body are respectively placed. Prevent the accident of pinching the ink ribbon,
This has the effect of avoiding trouble during printing. In addition, if the gap provided between the case body and the lid is set to an appropriate value, the convenience that tools other than the driver can be used when removing the lid to replace the ink ribbon can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a case body and a lid are separated.

FIG. 2 is a cross-sectional view of a main part in which a lid is fitted to a case main body, in which an internal mechanism is omitted.

FIG. 3 is a perspective view showing a state in which a case body and a lid of another embodiment are separated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case main body 2 Lid 3 Gap 4 Outer wall 5 Inner wall 6 Boss 7 Top end face 8 Fitting hole 9 Pin 10 Notch 11 Gap 12 Hook piece 13 Locking groove 14 Projection piece 15 Rib 16 Positioning groove

Claims (1)

(57) [Scope of request for utility model registration] 1. An ink ribbon cassette case comprising a case body 1 and a lid 2 detachably attached thereto,
A specific portion of the case body 1 or the lid 2 is made to protrude as compared with other portions, and a value corresponding to the above-mentioned amount of protrusion of the specific portion or a gap close to the value when the case main body 1 and the lid 2 are fitted to each other. 3. An ink ribbon cassette case wherein 3 is formed between the case body 1 and the lid 2.