JPH043825Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Table of contents] - Overview - Industrial application field - Conventional technology - Problems that the invention aims to solve - Means for solving the problems - Effects - Examples - Effects of the invention [ Overview] An ink ribbon car is provided with a ribbon supporter at the inlet of the casing that comes into contact with the ink ribbon fed into the casing and can be pushed open by the pushing pressure of the ink ribbon, thereby preventing the ribbon from folding incorrectly at the initial stage of cartridge use. Tritsuji.

[Industrial application field]

The present invention relates to an ink ribbon cartridge containing a continuous ink ribbon for a printer.

[Conventional technology]

For type belt type line printers, etc.
An ink ribbon cartridge containing a continuous ink ribbon folded in a zigzag shape is used. When an ink ribbon is used, its volume increases due to fuzz, etc. The casing of the ink ribbon cartridge is previously formed to a size that allows for such an increase in the volume of the ink ribbon. Therefore, the ink ribbon is folded and accommodated in an unused ink ribbon cartridge housing with a space provided at the ink ribbon inlet or outlet.

[Problem that the invention attempts to solve]

In the conventional ink ribbon cartridge described above, when the volume of the ink ribbon increases after a certain period of use and the ink ribbon becomes stuck inside the housing, the ink ribbon fed from the inlet part hits the ink ribbon inside. They are supported in close contact, receive appropriate pressurization, are folded well, and are sequentially stored and used repeatedly. Furthermore, in the case of an ink ribbon cartridge in which a space is provided at the outlet section in the initial stage of use of the cartridge, the ink ribbon can always be properly pressurized at the inlet section and can be folded and stored in a good manner. However, in the initial stage of use of the cartridge, if there is a space remaining on the inlet side in the housing, there is no means to support and pressurize the ink ribbon fed from the inlet, which is particularly important for OCR. When the ribbon rigidity is low (ribbon fabric is thin), such as an ink ribbon for printing, there have been cases where the ink ribbon falls down or twists, causing folding defects. In other words, if the ink ribbon falls down on the entrance side,
The fallen ink ribbon is not pulled out as quickly as it is on the exit side, so it remains in the specified location.
Therefore, when the ink ribbons are fed in sequentially during printing operations, the fed ink ribbons end up being folded on top of the fallen ink ribbons.
There was a problem in that the ink ribbon was fed out of the cartridge in a twisted state.

The present invention was developed in view of the shortcomings of the conventional technology, and it is possible to improve the ink ribbon by providing appropriate support force to the ink ribbon at the initial stage of use when a space remains inside the cartridge housing. The purpose of the present invention is to provide an ink ribbon cartridge that prevents folding defects.

[Means for solving problems]

To achieve this objective, the ink ribbon cartridge according to the present invention folds and accommodates a continuous ink ribbon within a housing having an inlet and an outlet.
An ink ribbon cartridge that folds and sends the ink ribbon sent out from the outlet part into the housing from the inlet part, has an opening through which the ink ribbon is inserted, and the ink ribbon is connected to the inlet part and the outlet part. a slide stopper provided between the ink ribbon and movable toward the outlet side when pressed by the ink ribbon fed from the inlet; a ribbon supporter provided at the entrance of the casing across a space,
The ribbon supporter comes into contact with the ink ribbon fed into the housing to provide a supporting force to the ink ribbon to prevent folding failure of the ink ribbon, and also provides support for the ink ribbon fed into the housing. It is characterized in that it is configured to be able to be pushed open toward the outlet portion side by pushing pressure.

[Effect]

When the cartridge is initially used, if the ink ribbon is fed into the housing with a space at the entrance of the housing and the inside is not clogged with ink ribbon, the ink ribbon will come into contact with the ribbon supporter provided at the entrance, and the ink will be ink. The ribbon is supported by this ribbon supporter, receives pressurization, is properly folded, and is housed inside the casing while pushing the ribbon supporter open toward the inside of the casing.

〔Example〕

FIG. 1 is a block diagram of a line printer equipped with an ink ribbon cartridge according to the present invention. 2
A type belt 2 is attached between two pulleys 1a and 1b. A platen 3 is disposed on the back side of the type belt 2, and a printing paper 4 and a hammer 5 are disposed opposite the platen 3. A ribbon cartridge 6 is attached to a predetermined position behind the type belt 2. A continuous (endless) ink ribbon 7 is stored in the ribbon cartridge 6 in a zigzag-folded manner. The ink ribbon 7 is connected to the feed roller 1
0, it is pushed inside while being folded from the entrance part 8, and sent out from the exit part 9 in the direction of arrow A.
Guide rollers 12, 13 and guide pieces 14, 1
5 and is used repeatedly. A ribbon supporter 11 is provided at the entrance portion 8 of the ribbon cartridge 6.
will be provided. This ribbon supporter 11 is pressed by the ink ribbon fed inside while being folded and moves in the direction of arrow B.

A detailed view of the ribbon cartridge 6 is shown in FIG. Figure a shows the initial state of use, and Figure b shows the state after a certain period of use. Inside the housing 16,
A slide stopper 17 that supports an unused ink ribbon and is movable toward the exit section is attached.
The ink ribbon 7 is received through the central opening 18 of the slide stopper 17. Housing 16 of unused cartridge or cartridge 6 in the early stage of use
Inside, as shown in figure a, there is a space 19 at the entrance.
is formed. This space portion 19 has a size that takes into account volumetric expansion of the ink ribbon 7 due to use. (Usually 40% of the total volume of unused ink ribbon
~100%). The slide stopper 17 prevents the folded ink ribbon inside from falling toward the space or being disturbed when an unused cartridge is transported. The outlet portion 9 of the housing 16 is provided with an elastic pressing member 20 for applying appropriate tension to the ink ribbon 7 to be sent out and preventing it from sagging.
A ribbon supporter 11 made of an elastic thin plate material such as kraft paper or plastic film is provided inside the entrance portion 8 of the housing 16. The ribbon supporter 11 has one end fixed to the side wall of the casing near the entrance portion 8 with an adhesive or the like, and the other end is configured as a free end so that it can be pushed open toward the inside of the casing. The ribbon supporter 11 has a curved shape that is somewhat convex toward the inside of the housing at the initial position,
It has a length that almost covers the entire width of the housing 16 (in the vertical direction in the figure).

In use, when the ink ribbon 7 is folded and fed into the housing by the feed roller 10, the ink ribbon comes into contact with the ribbon supporter 11, is supported by the ribbon supporter 11, and receives appropriate pressurization. Further, as the ink ribbon is sequentially folded and fed, the ribbon supporter 11 is pushed open by the pushing pressure of the ink ribbon, and the ribbon supporter 11 is
It is pushed open until it hits the side wall as shown.
In this way, push open the ribbon supporter 11,
When the space 19 in the housing 16 is clogged with the folded ink ribbon, the ink ribbon further presses the slide stopper 17 and moves it toward the outlet 9, thereby circulating the ink ribbon.

[Effect of idea]

As explained above, the ink ribbon cartridge according to the present invention is provided with a slide stopper that is pressed by the ink ribbon and movable toward the outlet side of the casing. An elastic ribbon supporter that can be pushed open is provided at the entrance of the casing, separated by a space corresponding to the expansion caused by the expansion. Therefore, when an ink ribbon is fed into the cartridge with a space formed at the inlet of the casing at the beginning of use, the ink ribbon will come into contact with the ribbon supporter, receive appropriate pressure, and be folded securely. Ru. In addition, if the volume of the ink ribbon increases due to use and the inside of the casing becomes clogged with ink ribbon, the ribbon supporter is pushed open so that it is in close contact with the side wall of the casing, so it does not interfere with ribbon storage and feeding operations. .

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of the operation of the embodiment of the present invention. 6... Ribbon cartridge, 7... Ink ribbon, 8... Inlet section, 9... Outlet section, 10... Feed roller, 11... Ribbon supporter, 16...
Housing, 19...Space part.

Claims (1)

[Claims for Utility Model Registration] 1. A continuous ink ribbon is folded and stored in a housing having an inlet and an outlet, and the ink ribbon sent out from the outlet is folded again into the housing from the inlet. The ink ribbon cartridge, which is folded and sent, has an opening through which the ink ribbon is inserted, is provided between the inlet part and the outlet part, and is pressed by the ink ribbon fed from the inlet part, a slide stopper movable toward the exit portion; and a ribbon supporter provided at the entrance portion of the casing with a space between the slide stopper and the ink ribbon corresponding to the expansion caused by use of the ink ribbon. The ribbon supporter comes into contact with the ink ribbon fed into the casing and provides a supporting force to the ink ribbon to prevent folding defects of the ink ribbon, and the ribbon supporter provides support to the ink ribbon fed into the casing. An ink ribbon cartridge characterized in that it is configured to be able to be pushed open toward the outlet section by the pushing pressure of the ink ribbon cartridge. 2. A utility model registration request characterized in that the ribbon supporter is made of a thin plate having elasticity, one end of the thin plate is fixed to the side wall of the casing of the entrance section, and the other end is movable so that it can be pushed open. The ink ribbon cartridge according to item 1. 3. The ink ribbon cartridge according to claim 2, wherein the thin plate is made of plastic film.