JPH0740639A - Ink occluding body containing structure - Google Patents

Abstract

PURPOSE:To easily process an ink occluding body for efficiently ensuring an ink occluding capacity by a method wherein adjacent flat faces crossing each other in an internal corner state are so disposed as to be contained in a slot provided along the height direction of a side wall. CONSTITUTION:An inner peripheral face of a side wall 3B forming an ink occluding body containing part 11 is formed by disposing a plurality of flat faces 14 crossing each other along the height direction of the side wall. The adjacent flat faces 14 crossing each other in an internal corner state are so disposed as to be contained in a slot 15 provided along the height direction of the side wall. The slot 15 is so formed as to have a circular horizontal cross section and an inner peripheral face 16 having no internal corner part along the height direction of the side wall. Therefore, the accumlation of ink on the inner peripheral face of the side wall can be suppressed to the utmost, and an ink occluding body 9 can be easily processed for efficiently ensuring an ink occluding capacity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink occluding body which occludes a liquid replenishing ink and is surrounded by a bottom wall, a lid, and a side wall sandwiched between the bottom wall and the lid. The side wall is formed integrally with the bottom wall that is stored in the storage section and is located on the lower side in the ink supply state, and the lid is joined to the side wall, and the inner peripheral surface of the side wall is flat or The present invention relates to an ink occlusion body storage structure formed by arranging a plurality of substantially flat flat surfaces in a state of intersecting each other along a side wall height direction.

[0002]

2. Description of the Related Art In a storage structure for an ink occlusion body, adjacent flat surfaces that form an inner peripheral surface of a side wall intersect with each other, and an inside corner portion is formed in the storage part along the side wall height direction. Therefore, the ink oozing out from the ink occlusion body wets and spreads on the inner peripheral surface of the side wall by a wetting action, and the ink is aggregated and collected by the cohesive force in the slight gap portion of the entering corner,
The accumulated ink rises due to a capillary phenomenon between the inner peripheral surfaces of the adjacent side walls of the corners of the corners, and spreads up to the joint between the side wall and the lid to spread the liquid ink. There is a phenomenon that it leaks out of the storage part due to a capillary phenomenon from a slight gap of the.

For this reason, some measures have been taken such as holding the ink impregnated body by several ribs provided on the inner peripheral surface of the side wall, or installing the ink impregnated body away from the inner peripheral surface of the side wall. However, in order to maintain a predetermined ink storage capacity, the ink impregnated body cannot be made small, so that there is a drawback that the ink storage body storage chamber must be designed large.

Therefore, conventionally, when the adjacent flat surfaces forming the inner peripheral surface of the side wall are arranged in a state of intersecting each other in an inset shape, the adjacent flat surfaces are smoothly arranged via the curved surface of the arc surface. The ink is continuously accumulated to prevent ink from accumulating on the inner peripheral surface of the side wall as much as possible.

[0005]

However, in order to efficiently secure the ink storage capacity of the ink occlusion body, it is necessary to process the outer peripheral surface of the ink occlusion body into a shape conforming to the shape of the side wall inner peripheral surface. There is also a drawback that it takes time and labor to process the ink occlusion body, and when the corners of the ink occlusion body have to be cut and processed into curved surfaces, the material of the ink occlusion body is wasted. . Furthermore, of the outer peripheral surface shape of the ink occlusion body, the shape does not match the portion corresponding to the curved surface that smoothly connects the adjacent flat surfaces,
If the shape of the ink occlusion body side is large, when the ink occlusion body is stored in the storage part, only that part is pressed intensively, and the replenishment ink easily exudes. There is a drawback.

The present invention has been made in view of the above-mentioned circumstances, and by devising a continuous shape of flat surfaces arranged in a state of intersecting each other at an inset corner, the inner peripheral surface side of the side wall is improved. An object of the present invention is to provide an ink occlusion body housing structure that can easily process the ink occlusion body in order to efficiently secure the ink occlusion capacity while suppressing the accumulation of ink as much as possible.

[0007]

In order to achieve the above-mentioned object, the present invention is characterized in that an ink occluding body occluding liquid replenishing ink is a bottom wall, a lid, the bottom wall and the It is stored in the storage part surrounded by the side wall sandwiched between the lid and
In the ink supply state, the side wall is integrally formed with the bottom wall located on the lower side, the lid is joined to the side wall, and the inner peripheral surface of the side wall is a flat or substantially flat flat surface. In the ink occlusion body storage structure that is formed by arranging in a state of intersecting with each other along the side wall height direction, adjacent flat surfaces that are arranged in a state of intersecting each other in a corner-like shape are adjacent to each other in the side wall height direction. It is arranged so as to sandwich a long groove extending along with, and the inner peripheral surface of the long groove is formed in a shape having no corner portion having an inward corner along the side wall height direction.

[0008]

In the inner peripheral surface of the side wall, a long groove along the side wall height direction is formed in the portion where the corner portion is conventionally formed, and an inner corner-shaped corner portion along the side wall height direction is formed on the inner peripheral surface. Since it is provided with a shape that does not form the ink, not only is it difficult for the ink that oozes out of the ink absorber to locally collect on the inner peripheral surface of the side wall, but even if it does collect, there is no entry corner, so the side wall and the lid are capillarized. Does not leak to the joint with the body. Further, since the projected corner of the ink occlusion body can be inserted into the long groove, the ink occlusion capacity of the ink absorbent can be efficiently secured without shaping the projected corner of the ink occlusion body into a curved shape. Even if the shape of the projected corner of the ink occlusion body is slightly larger than the predetermined shape, there is little possibility that only that part will be intensively pressed, and if it is slightly small, the ink will not get wet. It has nothing to do with it.

[0009]

Therefore, while the ink can be suppressed from being accumulated on the inner peripheral surface of the side wall as much as possible, the ink occlusion body can be easily processed in order to efficiently secure the ink occlusion capacity. In particular, when the material of the ink occlusion body is cut and processed into the ink occlusion body of a predetermined shape, there is little risk that the ink occlusion material will be wasted.

[0010]

EXAMPLE FIG. 3 shows an ink ribbon cassette in which an endless ink ribbon R is housed in a cassette case 2 having a pair of right and left ribbon guide arms 1. The ink ribbon R suspended between the ribbon guide arms 1 is shown in FIG. The impact dot head (not shown) is used for printing. The cassette case 2 includes a resin main body case 3 that opens upward and a resin lid 4 that closes the upward opening of the main body case 3.
Is integrally formed with a bottom wall 3A located on the lower side when mounted on the printer side, and a side wall 3B having an outer peripheral wall 3a and a partition wall 3b provided along the outer peripheral edge of the bottom wall 3A. The wall 3b includes a ribbon storage portion 5 for storing the ink ribbon R inside the main body case 3 in a folded state,
It is partitioned into an ink replenishment section 6 for replenishing the liquid ink to the ink ribbon R after passing between the ribbon guide arms 1. It should be noted that the lid body 4 has a pin 4a formed on the lid body 4 fitted in the locking hole 3c formed on the side of the upward opening peripheral surface of the side wall 3B in the ribbon width direction with respect to the main body case 3. It is locked and joined. The ribbon storage section 5 is at the entrance side,
A pair of feed rolls 7 and 8 for sandwiching the ink ribbon R after passing between the ribbon guide arms 1 and applying a traveling driving force to the ink ribbon R are provided, and the feed rolls 7 and 8 are provided on the printer side. By driving and rotating the driven shaft, the ink ribbon R in the ribbon storage portion 5 is pulled out and at the same time, the ribbon guide arm 1
The ink ribbon R passing through the space is configured to be folded and accommodated in the ribbon accommodating portion 5.

The ink replenishing section 6 applies the liquid replenishing ink impregnated in the ink occlusion body 9 to the ink applying member 10.
Is applied to the outer peripheral surface of the feed roll 8 and the ink ribbon R is re-applied and replenished by the contact between the outer peripheral surface of the feed roll 8 and the ink ribbon R. The body 9 and the ink applying member 10 are housed, and the ink applying member 10 is attached to the partition wall 3b.
It is made to project in a cantilevered manner from the opening 12 for leading out the ink formed in 1. and its tip end is elastically pressed against the outer peripheral surface of the feed roll 8.

The ink occlusion body 9 is composed of a non-woven fabric, a fiber bundle, a sponge or the like which has an ink impregnating property and which is formed in a shape substantially similar to the inner surface shape of the ink occlusion body housing portion 11. Is made of felt or the like having an ink impregnating property capable of gradually absorbing the ink stored in the ink occlusion body 9 by contact with the ink occlusion body 9 and applying the ink to the feed roll 8.

The inner peripheral surface 13 of the side wall 3B forming the ink storage member storage portion 11 is formed by arranging a plurality of flat flat surfaces 14 so as to intersect with each other along the side wall height direction. Then, as shown in FIGS. 1 and 2, the adjacent flat surfaces 14 that are arranged so as to intersect each other in a corner shape are arranged so as to sandwich the long groove 15 along the side wall height direction. Is formed in an arc shape in a horizontal cross section which does not have an inclining corner portion along the side wall height direction on its inner peripheral surface 16.

It should be noted that the long groove 15 is not simply a relief groove required for a machined surface of a machine part or the like, but the opening cross-sectional area in the horizontal cross section of the long groove 15 is such that the ink impregnating the ink occlusion body 9 is the ink itself. Even when they are spherically aggregated by the aggregating force, they are formed in a size having an area that does not cause the ink to rise due to the capillary phenomenon due to the wetting action of the inner peripheral surface 16 of the long groove 15.

[Second Embodiment] FIG. 4 shows another embodiment of the long groove 15, in which the inner peripheral surface 16 is formed in a polygonal shape in which the corners are continuous with curved surfaces in a horizontal cross section. Other configurations are similar to those of the first embodiment.

[Other Embodiments] 1. The shape of the long groove arranged between the adjacent flat surfaces is not limited to the shapes of the above-described first and second embodiments, and the inner peripheral surface thereof has a corner portion having an inner corner along the side wall height direction. Any shape, such as a rectangle, an ellipse, or a three-month shape, may be used as long as it is not shaped. 2. The long groove arranged between the adjacent flat surfaces is formed in series along the side wall height direction from the upper end on the lid side to the bottom wall in the embodiment, but from the upper end of the side wall to the middle of the side wall height direction of the side wall. It may be formed in a portion up to the position. 3. The ink absorber is housed in a storage case different from the cassette case of the ink ribbon, and the ink storage body is attached to the cassette case together with the storage case. It may be a structure. 4. Ink for accommodating the ink occlusion body by forming a rib along the side wall height direction on the side wall inner peripheral surface side of the accommodating portion and providing a gap between the outer peripheral surface of the ink occlusion body and the inner peripheral surface of the side wall. It may be an occlusion body storage section. In this case, a long groove whose inner peripheral surface extends along the side wall height direction is formed in the corner portion formed by the rib and the side wall inner peripheral surface along the side wall height direction. 5. The ink storage body storage structure according to the present invention may be an ink storage body storage structure provided in a writing instrument such as a felt-tip pen. 6. The ink occlusion body may be one that is impregnated with the liquid ink in advance and then stored in the ink occlusion body storage portion, or one that is stored in the ink storage body storage portion and then injected and impregnated with the liquid ink. Good. 7. A space may be provided between the ink occlusion body and the lid to prevent the ink from leaking out due to the contact between the lid and the ink occlusion body. 8. As a means for joining the side wall and the lid body, a protrusion formed on the lid body may be fitted into an engaging groove formed on the side wall and joined together, or a joining portion between the side wall and the lid body. May be partially adhered or welded.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is an enlarged horizontal sectional view of a main part of FIG.

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

FIG. 3 is a sectional view showing the inside of the ink ribbon cassette.

FIG. 4 is an enlarged horizontal sectional view showing a main part of the second embodiment.

[Explanation of symbols]

 3A Bottom wall 3B Side wall 4 Lid body 9 Ink storage body 11 Storage part 13 Inner peripheral surface 14 Flat surface 15 Long groove 16 Inner peripheral surface

Claims (1)

[Claims] 1. An ink occluding body (9) occluding a liquid replenishing ink comprises a bottom wall (3A), a lid (4), the bottom wall (3A) and the lid (4). The side wall (3B) is housed in a storage part (11) surrounded by a side wall (3B) sandwiched between the side wall (3B) and the bottom wall (3A) located on the lower side in the ink supply state. The lid (4) is joined to (3B), and the inner peripheral surface (13) of the side wall (3B) has a plurality of flat or substantially flat flat surfaces (14) along the side wall height direction. In the ink occlusion body housing structure that is formed so as to intersect with each other, adjacent flat surfaces (14) that are arranged so as to intersect with each other in a corner shape are long grooves ( 15), and the inner circumferential surface (16) of the long groove (15) is located in the side wall height direction. An ink occlusion body storage structure, characterized in that the ink occlusion body storage structure is formed so as not to have a corner portion having an inward corner shape.