JPH0435183Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an ink ribbon cartridge used in various printers and typewriters. More specifically, the present invention relates to an ink ribbon cartridge that reduces the frequency of replacement.

[Conventional technology]

Ink ribbons for printers, typewriters, etc. use film ribbons whose base material is plastic film with a thickness of about 10 to 20 microns made of polyethylene terephthalate or polyester, and film ribbons with a thickness of about 80 to 160 microns made of nylon or cotton. There is a fabric ribbon in which a fiber ribbon is used as a base material, and film ribbons, which have excellent print density and print clarity, have recently become more popular.

[Problem that the invention attempts to solve]

However, due to its structure, film ribbon has the disadvantage that it is inferior to fabric ribbon in terms of the number of prints. On the other hand, since the number of times fabric ribbons have to be replaced has been reduced due to Möbius and endless fabric ribbons, it has been increasingly desired to increase the number of prints on film ribbons.

The storage capacity of the ink ribbon cartridge that stores the film ribbon is limited, so in order to improve the number of prints with the film ribbon, it is best to thin the plastic film that is the base material and store as long a ribbon as possible in the cartridge. However, because the base material is made thinner, the tensile strength and stiffness of the film become weaker. This also leads to a decrease in the transportability of the film ribbon, which is important in ink ribbon cartridges, so this method should be used as a means to increase the number of prints on ink ribbons used in all printers, typewriters, etc. I can't.

In particular, when the width of the film ribbon is widened and printing is performed by dividing it into two layers, upper and lower, the vibration of the film ribbon guide is transmitted to the film ribbon and the ink ribbon cartridge, and the used part of the film ribbon is sent to the core that winds it. The winding is insufficient, which causes a problem of poor conveyance.

The present invention eliminates these drawbacks, prevents the ink ribbon cartridge from moving unintentionally after installation even if various vibrations occur, and enables film ribbons using a thin film base material to be used no matter what printing method is used. However, it is designed so that it can be transported easily.

[Means for solving problems]

In order to achieve this objective, the present invention has improved the case 1 that houses the ink ribbon. That is, on the back surface of the case 1, the front part is connected to the base end 1a so that the angle β between the part ahead of the base end 1a and the base end 1a is 0°<β≦5°.
It is higher.

[Effect]

When this ink ribbon cartridge is set in a predetermined position in a printer, typewriter, etc. in the same way as before, the installation surface 3 will appear as shown in Figure 2.
On the other hand, the case 1 is slightly inclined within the range of 0°<β≦5° such that the base end 1a is lower and the part beyond it is higher. Therefore, the case 1 can be stably installed in a predetermined position of a printer, typewriter, etc., and the case 1 will not move randomly even if various vibrations occur.

〔Example〕

Embodiments of the present invention will be described based on the accompanying drawings.

Reference numeral 1 denotes a case for storing the ink ribbon A, which has a locking portion 2 formed on the back surface. When setting this type of case 1 in a predetermined position on a printer, typewriter, etc., this locking part 2
The locking claw 4 on the main body side is inserted into.

On the back side of the case 1, the angle β between the part ahead of the base end 1a and the base end 1a is 0°<β.
The distal portion is made higher than the proximal portion 1a so that the angle is ≦5°. In the embodiment, a protrusion 5 or 5' is provided protruding from the back surface of the case 1 beyond the locking part 2, thereby making the front part of the case 1 higher than the base end 1a. In the illustrated example, the shape of the protrusion 5 or 5' is circular in cross section.
The shape is not limited to this,
For example, it may have a rectangular cross section.

In addition, in order to make the front part of the back surface of the case 1 higher than the base end 1a, in addition to the case shown in the embodiment, the entire wall surface of the front part of the case 1 may be made to protrude from the base end 1a, A method may be adopted in which the entire back surface of the case 1 is tapered so that the base end 1a is lower.

In this way, when the front part is made higher than the base end 1a so that the angle β between the front part and the base end 1a on the back surface of the case 1 is 0°<β≦5°, As shown in Fig. 2, when the case 1 is set in a predetermined position on a printer, typewriter, etc., the base end 1a is low and the base end 1a is low with respect to the installation surface 3 within the range of 0°<β≦5°. The case 1 can be tilted slightly higher so that it can be installed stably, and even if various vibrations occur, the case 1 will not move randomly after installation.

In the above embodiment, a case of a type that has a locking part 2 on the back side has been described, but the present invention is a case that does not have this locking part 2, that is, a case that is installed at a predetermined position of a printer, typewriter, etc. The present invention can also be applied to an ink ribbon cartridge of the type in which the case 1 is fitted between a pair of left and right gripping members, and the left and right side walls of the case 1 are gripped.

As shown in FIG. 1, a part of the ink ribbon A stored in the case 1 is located outside the case 1, passes through the two corners 6, 6, and reaches the inside of the case 1 again. It is wound around a circular core 7. The area between the two corners 6, 6 is used as a printing area.

[Effect of idea]

According to the present invention, the distal part is connected to the proximal end 1a so that the angle β between the proximal end 1a and the proximal end 1a on the back surface of the case 1 satisfies 0°<β≦5°.
Since the ink ribbon cartridge is raised higher, even if various vibrations occur when this ink ribbon cartridge is installed in a predetermined position in a printer, typewriter, etc., the case 1 will not move unexpectedly, and the height of the case 1 after installation will be reduced. The stability is improved, the ink ribbon is very well conveyed, and problems such as poor winding can be avoided.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the ink ribbon cartridge according to the present invention, and FIG. 1 is a plan view thereof, and FIG. 2 is a view showing the ink ribbon cartridge set in a predetermined position in a printer, typewriter, etc. FIG. 1...Case, 1a...Proximal end, 5, 5'...
Protrusion, A... Ink ribbon.

Claims (1)

[Scope of utility model registration request] On the back side of the case 1 that stores the ink ribbon, the part ahead of the base end 1a and the base end 1a
An ink ribbon cartridge characterized in that the tip side portion is made higher than the base end portion 1a so that the angle β between the two ends satisfies 0°<β≦5°.