JPS6329579Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ribbon pack used for loading ink ribbons into endless ink ribbon cartridges used in various printing machines or for refilling used ink ribbons.

2. Description of the Related Art Conventionally, cartridge-type ink ribbons have been widely used in order to easily and quickly replace ink ribbons in printing machines without getting one's hands dirty. This ink ribbon cartridge (hereinafter referred to as "cart cartridge")
Because it can accommodate long endless ink ribbons, it has a long lifespan until ribbon replacement, and has the advantage of being easy to replace by simply removing the old cartridge and inserting a new one.

However, even though only the ribbon wears out, we decided to discard the cartridge that is still usable, which would be a waste of resources, and because the replacement ribbon would be more expensive including the cartridge price, we decided to refill only the ribbon and replace the cartridge itself. A desire for repeated use arose, and various ideas for this purpose were developed.

Each of these ideas differs in the shape and construction of the storage box used, but the replacement ribbon is stored in the storage box with the ribbon folded in the specified manner.
There is a common feature that this (ribbon pack) is loaded into an empty cartridge and then the storage box is removed.
A representative example is Utility Model No. 55-14529.

However, since the storage box of this invention is completely box-shaped, mass production requires injection molding, which results in high manufacturing costs. Additionally, in order to make storage boxes of different sizes, it is necessary to prepare special molds for each.

In addition, Utility Model Application No. 54-166918 discloses a protective frame formed by bending both sides of a thin plate to form a gutter as a simple type of storage box, but in this case, since the front and back of the frame are open, There is a concern that the ribbon stuffed inside the cartridge may be crushed by the outer band, disrupting its smooth movement within the cartridge after refilling.

This idea was created in view of these circumstances.
The structure of the storage box has been improved so that it can be manufactured at a low cost, the ink ribbons stored therein are not damaged, and furthermore, the structure can easily accommodate changes in the dimensions of the storage box.

That is, the gist of the present invention is to use, as a storage box, an assembly consisting of an outer frame having an opening at approximately the center of the substrate, and an inner frame having a wall formed on the open side of the outer frame. It is something.

Hereinafter, the present invention will be described in detail with reference to the drawings.

Figure 1 briefly shows the general mechanism of a cartridge.The side plate of cartridge 1 is removed,
The casing 2 and the ink ribbon 3 inside it are visible. Most of the ink ribbons 3 are loaded into the hollow part 4 of the casing 2 in a serpentine folded state, and one of the ribbons 3a is pulled out from the slit of the casing 2, and then inserted into the casing 2 again from the other slit. Return inside and feed roller 5
drawn in by. This drawn ribbon 3b
The tip of the ink ribbon 3 is joined to the end of the ink ribbon 3b, so that the ink ribbon 3 forms one loop. In addition,
As shown by reference numeral 3d in FIG. 2, both terminals are joined with one end twisted by 180 degrees. By doing this, the ink ribbon is turned over each time it goes around, and both sides of the ribbon are used alternately.

The ribbon drawn in by the feed roller 5 is naturally folded into a serpentine shape to form the ribbon 3 in the hollow part.
is pushed to the right in the drawing, and the ribbon 3a as a whole gradually moves in the direction of the empty space created by being pulled out.

FIG. 3 shows the configuration and assembled state of the storage box, which is a feature of the ribbon pack of the present invention. The storage box is composed of an outer frame 7 and an inner frame 8.

The outer frame body 7 has a base plate 10, and an opening 11 is formed approximately in the center thereof. The size of this opening 11 is
Make it so that a person's finger can fit in it or more. The substrate 10 is usually rectangular and has ribbons 3 on its sides.
A vertical side wall 12 that is slightly higher than the width of the vertical side wall 12 is erected.

This outer frame body 7 can be formed using an appropriate material and means. For example, the apertures 11 may be formed in a bent synthetic resin plate by punching.

The inner frame 8 has a side wall 13 in a direction perpendicular to the side wall 12 of the outer frame 7, and the flat plate 14 is stacked on the substrate 10 of the outer frame 7, so the width of the flat plate 14 is wider than the width of the substrate 10. Make it slightly smaller. Also, is the height of the side wall 13 of the inner frame 8 equal to the width of the ribbon 3?
Alternatively, it may be slightly lower, but is not particularly limited. The inner frame 8 can also be made in the same manner as the outer frame.

After inserting the inner frame 8 into the groove of the outer frame 7,
Into the box-shaped space, a part of the loop is pulled out from the gap between the side walls 12 and 13 as shown in FIG.
Accommodates folded ribbons. Next, the exterior band 9 is wrapped around it. In this embodiment, the exterior band is a tape-like film, which may be wound once in the longitudinal direction of the ribbon pack 6 and then joined at both ends by heat sealing or the like to form a ring shape. This exterior band 9 prevents the ink ribbon 3 placed in the storage box from falling off, and must be easily peelable after being loaded into the cartridge. Therefore, it is convenient to leave a selvage of an appropriate length on the outer edge of the film, as shown in the figure.

The completed state of this ribbon pack is shown in FIG.
However, in this figure, the exterior band 9 is depicted as being transparent.

When replacing the ribbon, turn the ribbon pack 6 of Fig. 2 upside down and insert it into the hollow part 4 of the casing 2 with its exterior intact, and insert the ribbon coming out of the pack into the slit (ribbon passage) of the cartridge. After passing through the outer band 9, the ears of the outer band 9 are pulled and removed. Next, by inserting a finger into the opening 11 of the outer frame 7 and pressing the inner frame 8, the outer frame 7 is removed, and then the inner frame 8 is removed, thereby completing loading of the ribbon.

FIG. 4 shows a longitudinal section of an assembly consisting of an outer frame 7 and an inner frame 8 in another embodiment of the present invention. In this example, in order to prevent the inner frame 8 from shifting in the longitudinal direction with respect to the outer frame 7, a projection 14a is formed on the lower surface of the flat plate 14 of the inner frame 8, and this projection 14a is connected to the outer frame 7. It is fitted into the opening 11 of the substrate 10 of the body 7.

As detailed above, the ribbon pack of the present invention has a simple structure in which the storage box is a combination of two inner and outer frames, and unlike the integrally molded storage box of the conventional ribbon pack, it is easy to manufacture, and compared to other conventional ribbon packs. It does not damage the stored ink ribbon as in the example.

Furthermore, for example, a storage box formed into a box shape by bending the four sides of a single thin plate (see Japanese Patent Application Laid-open No. 55-9808)
In comparison, in this case, one set of bending molds can only form one type of storage box, whereas the storage box of the present invention is assembled from a frame with two sides of thin plate bent, so the inside and outside can be molded separately. By standardizing several frame widths and selecting and combining them as appropriate, storage boxes of various sizes can be produced using a small number of molds.

[Brief explanation of the drawing]

Fig. 1 is a drawing explaining the general internal structure of an ink ribbon cartridge, Fig. 2 is a perspective view showing the entire ribbon pack according to the present invention, Fig. 3 is a perspective view showing its configuration and assembled state, FIG. 4 is a longitudinal sectional view illustrating another embodiment of the present invention. 1... Cartridge, 3... Ink ribbon, 7
...outer frame body, 8...inner frame body.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A ribbon pack for a ribbon cartridge consisting of an endless ink ribbon, a storage box that stores the ribbon in a folded state, and an exterior band that wraps the ribbon so that it does not come out from the storage box. In the above, the structure of the storage box includes: an outer frame body having an opening at approximately the center of the base plate and vertical side walls on both sides of the base plate; a flat plate abutting on the base plate of the outer frame body; perpendicular to the side wall of the frame,
A ribbon pack for a ribbon cartridge, characterized in that it is an assembly including an inner frame body comprising a side wall provided perpendicularly to an end of the flat plate. 2. The ribbon pack for a ribbon cartridge according to claim 1, wherein the flat plate of the inner frame 8 is provided with a protrusion that engages with the opening in the outer frame 7.