JP2554619Y2 - Ink ribbon cassette - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a cassette case in which an ink reservoir for storing liquid ink is composed of a box-shaped case which opens upward and a lid case which closes an upper opening of the box-shaped case. And an ink ribbon cassette in which liquid ink stored in the ink storage body and supplied to the ink ribbon is supplied to the ink ribbon.

[0002]

Conventionally, the ink ribbon cassette of this kind
Then, the outer peripheral wall of the box-shaped case is provided inside the box-shaped case.
Form a peripheral wall that partitions the storage space at a lower height
Opposed and to Tomo, the peripheral wall and the outer peripheral wall of the box-shaped casing
The upper end surface of the outer peripheral wall of the box-shaped case is in close contact with the lid case between the surfaces
Between the upper end surface of the peripheral wall and the inner surface of the lid case.
To form a receiving space and the groove which communicates through a gap formed, the liquid from the ink reservoir to be stored in the storage space
Even if ink flows out, catch it once in this groove
From the joint between the outer wall of the box-shaped case and the lid case
Technology to suppress Succoth exuded outside the cassette case has been proposed (e.g., see Japanese Unexamined Utility Model Publication No. 63-132755).

[0003]

In this prior art, since it is assumed that the ink ribbon cassette is used with the lid case facing upward, the ink ribbon cassette is transported or stored with the lid case side down. shape between are the ink liquid ink flowing out from the reservoir body heat while seeking the inner surface of the lid case during which the upper end surface of the peripheral wall and the lid case
Through the gap formed, the outer wall of the box-shaped case and the lid case
Flow directly to the junction with the
The liquid ink that has flowed out of the box is
Can seep out of the cassette case from the joint with the base
There was . The present invention has been made in view of the above-described circumstances, and includes a case in which a peripheral wall and a lid case that define the storage space are formed.
Effectively suppresses bleeding of liquid ink from the joint between the outer peripheral wall of the box-shaped case and the lid case without any special restrictions on the handling posture , even though it is a simple modification of the surface side
It is an object of the present invention to provide an ink ribbon cassette that can perform the operation.

[0004]

In order to achieve the above object, the present invention is characterized in that the accommodating space is defined in the box-shaped case in the ink ribbon cassette.
A peripheral wall is formed, and a peripheral wall of the storage space and the box-shaped case are provided between opposing surfaces of the peripheral wall and an outer peripheral wall of the box-shaped case.
With the closed space is provided which is formed by each of the outer peripheral wall in close contact with the inner surface of the lid case of the lid cable
The part facing the closed space on the inner surface of the
The rib is formed so as to protrude along the inner peripheral surface of the peripheral wall .

[0005]

[Function] When the lid case is joined to the box-shaped case,
The peripheral wall that defines the storage space is in close contact with the inner surface of the lid case
The amount of liquid ink flowing into the closed space from the storage space
Can be greatly reduced. Moreover, it flows into the closed space
Liquid ink, with the lid case positioned above
Is retained between the facing surfaces of the outer peripheral wall and the peripheral wall of the box-shaped case.
And the lid case is positioned below.
On the inner surface of the lid case along the outer peripheral wall of the box-shaped case.
It can be blocked and retained by the provided ribs. So
Therefore, the ink ribbon cassette with the lid case up
Force, or with the lid case down
Liquid ink flowing into the closed space
Does not flow to the joint between the case and the lid case
From the joint between the outer peripheral wall of the box-shaped case and the lid case.
Bleeding of the liquid ink can be suppressed.

[0006]

Therefore, the circumference for forming the storage space is defined.
The wall is brought into close contact with the inner surface of the lid case, and
A simple and economical modification of forming the rib
With this construction, bleeding of liquid ink from the joint between the outer peripheral wall of the box-shaped case and the lid case is effectively suppressed without any particular restriction on the handling posture of the ink ribbon cassette .
Rukoto can. In the ink ribbon cassette according to the second aspect, the rib may be tightly attached to an inner peripheral surface of an outer peripheral wall of the box-shaped case.
The lid case is positioned downward.
Liquid ink that has flowed into the closed space,
As a result, the liquid ink can be blocked and retained, and the oozing of the liquid ink from the joint between the outer peripheral wall of the box-shaped case and the lid case can be more effectively suppressed .

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment] FIGS. 1 and 3 show a synthetic resin box-shaped case in which a liquid ink is absorbed and stored in a non-woven fabric, a fiber, a sponge or the like. 2a and box-shaped case 2
Ink ribbon cartridge which is housed in a cassette case 2 which is combined with a synthetic resin lid case 2b which closes the upper opening of a, and in which the liquid ink stored in the ink storage body 1 is supplied to the running endless ink ribbon R. Indicates a set. The box-shaped case 2a includes a pair of left and right ribbon guide arms 1a, a ribbon storage chamber 3 for storing the ink ribbon R, and a storage space for storing the ink storage body 1.
And a lid case 2b for closing the upper opening thereof is screwed, and the ink traveling between the pair of ribbon guide arms 1a runs over both of them. The printing section A is configured to print the ribbon R by an impact dot head (not shown). At the entrance side of the ribbon storage chamber 3, a ribbon driving unit 5 for rotating the ink ribbon R around the printing unit A and the ribbon storage chamber 3 is provided.
The ribbon drive unit 5 is provided with a drive feed roll 5a driven and rotated by receiving power from the printer side and a driven roll 5b that is driven and rotated by the drive feed roll 5a, and is provided between the drive feed roll 5a and the driven roll 5b. The ink ribbon R is pulled out of the ribbon storage chamber 3 by the drive rotation of the drive feed roll 5a and travels, and the ink ribbon R that has passed through the printing section A is folded and stored in the ribbon storage chamber 3. Is stored in. An ink reservoir 1 is provided between the ribbon driving unit 5 and the ink reservoir storage chamber 4.
Ribbon R running on the liquid ink stored in the ink ribbon R
Is provided with an ink supply mechanism. The ink replenishing mechanism includes a replenishing roll 5b (the sub roll) for replenishing the ink ribbon R with liquid ink by contact with the ink ribbon R.
It is also configured as the moving roll 5b. ) And an ink supply 6 for supplying the liquid ink stored in the ink storage 1 to the supply roll 5b by contact with the supply roll 5b. Before SL ink supply member 6 is composed of a bar-like felt a rectangular cross section in contact held in the ink reservoir 1. When the supply roll 5b rotates with the travel of the ink ribbon R, the liquid ink that has permeated into the ink supply body 6 from the ink reservoir 1 is applied to the supply roll 5b, and the liquid ink applied to the supply roll 5b is The ink ribbon R applied to the ink ribbon R and applied with the liquid ink is stored in the ribbon storage chamber 3.
As shown in FIG. 2, in the box-shaped case 2a, a peripheral wall 7 for partitioning and forming the ink storage chamber 4 is formed.
The peripheral wall 7 and the top and bottom surfaces of the ink storage chamber 4
A plurality of ribs 8 are integrally formed on the inner surfaces of the corresponding box-shaped case 2a and the lid case 2b so as to be in contact with the outer surfaces of the ink storage body 1 and the ink supply body 6 facing each other. An air gap B is formed between the inner surface of the ink reservoir 4 and the outer surfaces of the ink storage body 1 and the ink supply body 6 so that a capillary phenomenon does not occur. A groove 8a is formed on a contact surface of the rib 8 where the ink storage body 1 and the ink supply body 6 are in contact, and the liquid ink that has oozed out between the rib 8 and the ink storage body 1 and the ink supply body 6 is formed by the groove 8a. It is configured to stay inside. Between opposing surfaces of the peripheral wall 7 and the outer peripheral wall 9 of the box-shaped case 2a,
When the box-shaped case 2a and the lid case 2b are closely fitted to each other from above and below , the outer wall of the peripheral wall 7 and the box-shaped case 2a
Each of the peripheral walls 9 closely adheres to the inner surface of the lid case 2b.
Thus , a closed space 10 formed is provided. The closed space 10 prevents the liquid ink flowing out of the ink reservoir 1 from seeping out from the joint surface between the outer peripheral wall 9 of the box-shaped case 2a and the lid case 2b, and is spaced from the outer peripheral wall 9 of the box-shaped case 2a. this ink reservoir accommodating chamber 4 peripheral wall 7 that are partitioned to a state of continuous across the outer peripheral wall 9 of the ink supply member 6 inserted portion and the box-shaped case 2a of the peripheral wall 7 in a state of separating the
And the surrounding wall 11 surrounding the peripheral wall 7 are integrally formed with the box-shaped case 2a , and the outer peripheral wall 9 of the box-shaped case 2a and the outer peripheral wall 9 are formed.
Ribs 12 enter between the surrounding wall 11 and the peripheral wall 7 which continuously
The formed integrally with the case cover 2b along the outer peripheral wall 9, and a box-shaped case 2a and the lid case 2b, the peripheral wall 7, the enclosure 11 and the upper end surface of the outer peripheral wall 9 is in close contact with the inner surface of the lid case 2b, at the same time, the outer peripheral wall 9 between the ribs 12 and the circumferential wall 7 and the outer peripheral wall 9
Close contact with the inner peripheral surface of, between the peripheral wall 7 and the enclosure 11 are formed by assembling in a state of close contact over both 7 and 11.

Second Embodiment FIG. 4 shows a first embodiment in which the lengths of the ribs 12 and the surrounding walls 11 are shortened, and the ribs 12 are stored in the ink storage space.
An example is shown in which the stay body storage chamber 4 is brought into close contact with the corner of the peripheral wall 7. Other configurations are the same as in the first embodiment.

[Third Embodiment] FIG. 5 shows that the upper end surface as shown in the first embodiment has a lid case 2.
b, the surrounding wall 11 that is in close contact with the inner surface of the storage space is omitted.
In this embodiment, the lower end of the rib 12 which is in close contact with the outer peripheral surface of the peripheral wall 7 of the ink storage chamber 4 is fitted into the groove 13 formed on the bottom surface of the box-shaped case 2a. Other configurations are the same as in the first embodiment.

[Fourth Embodiment] FIG. 6 shows that the height of the ribs 12 in the first embodiment is reduced.
Further, the rib 12 is provided for storing the ink storage body which is the storage space.
An embodiment is shown in which both the peripheral wall 7 and the outer peripheral wall 9 of the delivery room 4 are in close contact with each other. Other configurations are the same as in the first embodiment.

In the claims of the utility model registration, reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a sectional plan view showing the inside of an ink ribbon cassette.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is an exploded perspective view showing a main part of the ink ribbon cassette.

FIG. 4 is a cross-sectional plan view of a main part showing another embodiment of the ink ribbon cassette.

FIG. 5 is a sectional side view of a main part showing another embodiment of the ink ribbon cassette.

FIG. 6 is a sectional side view of a main part showing another embodiment of the ink ribbon cassette.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Ink storage body 2 Cassette case 2a Box-shaped case 2b Lid case 4 Storage space 7 Peripheral wall 9 Outer peripheral wall 10 Closed space 12 Rib R Ink ribbon

Claims (2)

(57) [Scope of request for utility model registration] An ink storage body (1) storing liquid ink includes a box-shaped case (2a) opening upward and a lid case (2b) closing an upper opening of the box-shaped case (2a). Storage space in the combined cassette case (2)
(4) In the ink ribbon cassette in which the liquid ink stored in the ink storage body (1) and stored in the ink storage body (1) is supplied to the ink ribbon (R), the box-shaped case (2a) is provided.
Inside, a peripheral wall (7) defining and forming the storage space (4) is formed.
The storage space (4) is formed between opposing surfaces of the peripheral wall (7) and the outer peripheral wall (9) of the box-shaped case (2a ).
A peripheral wall (7) and an outer peripheral wall (9) of the box-shaped case (2a );
Together with the closed space being each formed by close contact with the inner surface of the lid case (2b) (10) are provided, wherein
In the part facing the closed space (10) on the inner surface of the lid case (2b)
Is provided on the inner peripheral surface of the outer peripheral wall (9) of the box-shaped case (2a).
An ink ribbon cassette characterized in that a rib (12) is formed so as to project therefrom. 2. The box-shaped case according to claim 2, wherein said rib (12) is provided in said box-shaped case.
(2a) so as to be in close contact with the inner peripheral surface of the outer peripheral wall (9)
The ink ribbon cassette according to claim 1, characterized in that the.