JPH04113962U - ink ribbon cassette - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an ink ribbon cassette whose front and back sides can be reversed so as to prevent the front and back sides of the cassette body from being mistakenly loaded into the printing section of a printing device. [Structure] A cassette body 1 rotatably houses a pair of ink ribbon winding/supply hubs 3 and 3 formed by winding an ink ribbon 2, and ribbon end sensor insertion portions 5a and 5b.
In the ink ribbon cassette of the front and back reversible type, a cover 6 that closes the ribbon end sensor insertion parts 5a and 5b is provided with a cover 6 that closes the ribbon end sensor insertion parts 5a and 5b.
It is detachably attached to either one of 5b.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an ink ribbon cassette, and more specifically, the present invention relates to an ink ribbon cassette. For ribbon cassettes, make sure to mark the printing device on the front and back sides of the cassette body. This invention relates to an ink ribbon cassette that can be loaded into a character section.

0002

[Conventional technology]

The ink ribbon cassette rotatably stores a pair of ink ribbon take-up and supply hubs. When loading the stored cassette body into the printing section provided in the printing device, the printing section is printed. The head insertion section where the head faces, and the ribbon end where the ribbon end sensor of the printing section faces. and a sensor insertion section.

0003 Use the above ink ribbon cassette with the front side of the cassette body facing upward. , When the ink ribbon is completely wound from the supply hub side to the take-up hub side, the cassette book is Turn the body over, with the back side of the cassette body facing upwards, and then insert the supply hub from the take-up hub side. A front-back type is known, in which the ink ribbon is wound on the back side. This reverse-type ink ribbon cassette has the above-mentioned head insertion section and the above-mentioned ribbon end. Two sensor insertion portions are provided in the cassette body.

0004

[Problem that the idea aims to solve]

However, in the case of the above-mentioned ink ribbon cassette that can be reversed, the cassette The above-mentioned head insertion portions are provided at two locations on the left and right sides of the center of the front end surface of the cassette body, and the cassette The ribbon end sensor insertion section is provided in two places on the left and right sides of the front end of the main body. , the appearance is almost the same whether the front side of the cassette body is facing upward or the back side is facing upward. Therefore, the ink ribbon cassette cannot be stored or used with thermal paper When removing the cassette from the printing section and reloading it, make sure to You won't know if you loaded the cassette with the misalignment facing upward, and the front and back sides of the cassette body There was a risk of loading the paper into the printing section by mistake. In this way, the ink ribbon cassette If you accidentally load the front and back sides of the cassette body into the printing section again, the Printing with ink ribbon that has been used many times, or with ink that has never been used. A problem arises in that the bong is taken up as a used bong by the take-up/supply hub.

[0005] Therefore, the purpose of this invention is to avoid printing on the printing device by mistake on the front and back sides of the cassette body. To provide an ink ribbon cassette that can be reversed from side to side so that it is not loaded into the It's there.

[0006]

[Means to solve the problem]

This invention consists of a pair of ink ribbon winding and supply hubs that are made by winding an ink ribbon. Two ribbon end sensor insertion sections are provided in the rotatably stored cassette body. In addition, when using a reverse-type ink ribbon cassette, the above-mentioned ribbon end sensor can be inserted. Attach and remove the cover that closes the entrance to one of the ribbon end sensor insertion sections mentioned above. By providing an ink ribbon cassette that can be freely attached. , the above objectives have been achieved.

[0007]

[Effect]

According to the ink ribbon cassette of the present invention, the ribbon end sensor on the side that is not used - The insertion tube can be kept closed with a cover. Therefore, once the ink ribbon is loaded, After removing the set from the printing unit of the printing device, when reloading it into the printing unit, check whether the cover is present or not. The front and back sides of the cassette body can be determined by Even if you accidentally insert the ribbon end sensor into the ribbon end sensor in the printing area, the cover may It obstructs insertion into the entry section and prevents loading of the cassette body into the printing section. For this reason, Loading the cassette into the printing unit with the wrong front and back sides and printing. situation can be definitely avoided.

[0008]

【Example】

An embodiment of the ink ribbon cassette of the present invention will be described below with reference to the drawings.

[0009] 1 and 2 show an embodiment of the ink ribbon cassette of the present invention, and FIG. is a plan view of the ink ribbon cassette, and Figure 2 shows the ribbon end sensor insertion part and the ribbon. FIG. 3 is an exploded perspective view of essential parts showing a cover that closes an end sensor insertion portion.

0010 As shown in FIG. 1, the ink ribbon cassette of this embodiment winds the ink ribbon 2. A cassette that rotatably stores a pair of ink ribbon winding/supply hubs 3 and 3. Head insertion parts 4a and 4b are provided at two places on the left and right sides of the front end surface of the cassette main body 1, and the cassette Ribbon end sensor insertion portions 5a are provided at two locations on both left and right corners of the front end of the main body 1. , 5b.

[0011] Of the ribbon end sensor insertion parts 5a and 5b, the one located at the left end corner in FIG. One ribbon end sensor insertion section 5a is located on the surface and side of the cassette body 1. It is formed by cutting out a part of the surface and opening it, and it is located at the right corner in Figure 1. The other ribbon end sensor insertion section 5b is located on the back and side of the cassette body 1. It is formed by cutting out and opening a part of the surface.

0012 The ribbon end sensor insertion parts 5a and 5b are inserted when not in use. A cover 6 having a substantially inverted L-shaped cross section as shown in FIG. 2 is detachable for closing the opening surface. It is designed so that it can be attached to. In other words, if the ribbon end sensor is inserted Step portions 5a and 5b for guiding and holding the cover 6 are provided at the opening edges of the entry portions 5a and 5b, A locking protrusion 6b provided at the tip of the horizontal portion 6a of the cover 6 is a locking mechanism that is removably locked. Recessed recesses 5a and 5b are provided.

[0013] The cover 6 covers either the ribbon end sensor insertion portion 5a or 5b. It is closed and has a shape of the side wall so as to form a part of the side wall of the cassette body 1. are formed together.

[0014] Next, we will discuss the effects of the ink ribbon cassette of this embodiment configured as described above. I will explain.

[0015] When loading the ink ribbon cassette into the printing section of the printing device, be sure to The ribbon end sensor insertion parts 5a and 5b are closed with a cover 6. like this , the front side and back side of the cassette body 1 can be distinguished by the presence of the cover 6. , when removing the ink ribbon cassette from the printing section and reloading it, the cassette There is no possibility of confusing the front side and the back side of the main body 1.

[0016] Also, if you accidentally load the front and back sides of the cassette body 1 into the printing unit of the printing device, Even if you try, the ribbon end of the ribbon end sensor in the printing section is blocked by the cover 6. This prevents insertion into the sensor insertion sections 5a and 5b and loading into the printing section of the cassette body 1. to prevent For this reason, the front side and the back side of the cassette body 1 may be incorrectly placed on the printing section. You can reliably avoid the situation of loading and printing, and you can use the ink ribbon 2 once used. Roll up the ink ribbon 2 that has not been printed or used even once as used. There is no fear that it will wind up on the take-up/supply hubs 3, 3.

[0017] Note that the ink ribbon cassette of the present invention is limited to those shown in the above embodiments. It's not a thing. For example, instead of forming the cover 6 to have a substantially inverted L-shaped cross section, As shown in FIG. It may be formed into a flat plate so that only the openings on the front and back sides are closed. In Figure 3, the figure The same parts as those shown in 2 are given the same reference numerals.

[0018]

[Effect of the idea]

As explained above, the ink ribbon cassette of the present invention has a It is possible to prevent the back side from being accidentally loaded into the printing unit of the printing device.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of an ink ribbon cassette of the present invention.

FIG. 2 is an exploded perspective view of essential parts showing a ribbon end sensor insertion portion of the ink ribbon cassette shown in FIG. 1 and a cover that closes the ribbon end sensor insertion portion.

FIG. 3 shows another embodiment of the ink ribbon cassette of the present invention, and is an exploded perspective view of the main parts similar to FIG. 2, showing a ribbon end sensor insertion part and a cover that closes the ribbon end sensor insertion part. be.

[Explanation of symbols]

1 Cassette body 2 Ink ribbon 3 Ink ribbon take-up/supply hub 5a, 5b Ribbon end sensor insertion part 6 Cover

Claims (1)

[Scope of utility model registration request] Claim 1: A cassette body rotatably housing a pair of ink ribbon winding/supply hubs formed by winding an ink ribbon, and two ribbon end sensor insertion portions provided therein.
An ink ribbon cassette of a front-back type ink ribbon cassette, characterized in that a cover that closes the ribbon end sensor insertion section is detachably attached to one of the ribbon end sensor insertion sections.