JPH0657657U - Ink ribbon cassette - Google Patents

Abstract

(57) [Abstract] [Purpose] Even when used in a printer in which a relatively small amount of heat is transferred from the printer head during printing, there is no risk that the ink in the ink ribbon will not be completely melted, and therefore printing will not be blurred. Providing a set. In an ink ribbon cassette having at least one recess for inserting a printer head on the front end side of a cassette accommodating a supply hub wound with an ink ribbon and a take-up hub, a recess for inserting the printer head and the supply hub are provided. The cassette body is characterized in that two or more sliding contact portions are provided on the cassette body so as to face the traveling path of the ink ribbon between them and the ink surface side of the ink ribbon slides when the ink ribbon travels.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an ink ribbon cassette, and more particularly, to an ink ribbon cassette in which the ink of the ink ribbon is not completely melted during printing, and therefore, there is no risk of print fading.

[0002]

[Prior art]

 As shown in FIG. 2, the ink ribbon cassette accommodates a supply hub 2a and a take-up hub 2b around which the ink ribbon 1 is wound, and has at least one printer head insertion recess 3 on the front end side. is doing.

In addition, the cassette is usually provided with a back tension spring 71 for preventing the meandering of the ink ribbon 1 by applying a back tension from the supply side of the ink ribbon 1 at the time of winding, and a tension on the winding side of the ink ribbon 1. There are provided tension springs 72 for imparting slack and a slack eliminating spring 73 for slackening the ink ribbon 1 in the middle thereof. Then, the ink ribbon 1 is unwound from the supply hub 2a, and the back tension spring 71 (between the guide pin 61), the slack eliminating spring 73, the printer head insertion recess 3 and the tension spring 72 are provided. It is configured to be wound around the winding hub 2b via (between the guide pin 62).

A printer head 5 that prints when a cassette is mounted on a printer (not shown) is inserted into the printer head insertion recess 3 and the printer head 5 moves to the front side of the cassette during printing. At this time, the ink ribbon 1 is pulled out to a position where it almost comes into contact with the paper (printing paper), and printing is performed by thermal transfer.

[0005]

However, conventionally, some printers have a weak heat in the printer head 5, and in such a printer, the ink in the ink ribbon 1 may not be completely melted during printing. There is a possibility that the print may be faint. Further, in recent printers, the printing speed has become high, which makes it difficult to transfer heat from the printer head 5 to (the ink of) the ink ribbon 1. Therefore, even in the printer that performs high-speed printing, the ink of the ink ribbon 1 may not be completely melted at the time of printing, and thus printing may be faint.

Therefore, an object of the present invention is that even when used in a printer in which only a relatively small amount of heat is transferred from the printer head at the time of printing, there is no fear that the ink of the ink ribbon will not be completely melted, and therefore the printing may be blurred Not to provide an ink ribbon cassette.

[0007]

[Means for Solving the Problems]

 The present invention relates to an ink ribbon cassette having at least one printer head insertion recess on the front end side of a cassette housing an ink ribbon winding supply hub and a winding hub, wherein the printer head insertion recess and the supply hub are provided. Ink ribbon cassette characterized in that two or more sliding contact portions are provided in the cassette main body so as to face the running path of the ink ribbon between and and the ink front surface side of the ink ribbon slides when the running of the ink ribbon. The above-mentioned object is achieved by providing.

[0008]

[Action]

 According to the ink ribbon cassette of the present invention, the ink ribbon which is fed out from the supply hub and runs at the time of printing has two positions in the cassette body, the ink surface side of which faces the running path of the ink ribbon between the supply hub and the printer head. Even in a printer in which the ink surface side of the ink ribbon is heated by the frictional contact with the above sliding contact portion and the energy (heat) transmitted from the printer head is relatively small, the ink in the ink ribbon is It melts easily, so there is no fear that the print will fade.

[0009]

【Example】

 An embodiment of the ink ribbon cassette of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing the inside of an ink ribbon cassette according to an embodiment of the present invention.

As shown in FIG. 1, the ink ribbon cassette of this embodiment accommodates a supply hub 2a and a take-up hub 2b around which the ink ribbon 1 is wound, and one printer head is inserted at the front end side. It has a concave portion 3 for use.

In addition, a back tension spring 71 for applying a back tension to the cassette from the supply side of the ink ribbon 1 to prevent the ink ribbon 1 from meandering at the time of winding, and a tension is applied to the winding side of the ink ribbon 1. There are provided a tension spring 72 and a slack eliminating spring 73 which removes the slack of the ink ribbon 1 between them. Then, the ink ribbon 1 is unwound from the supply hub 2a, and the back tension spring 71 (between the guide pin 61), the slack eliminating spring 73, the printer head inserting recess 3 and the tension. It is configured to be wound around the winding hub 2b via a spring 72 (between the guide pin 62).

A printer head that prints when the cassette is mounted in the printer is inserted into the printer head insertion recess 3 and the printer head 5 moves to the front side of the cassette as shown in FIG. 1 during printing. At that time, the ink ribbon 1 is pulled out to a position where it almost comes into contact with the paper (printing paper), and printing is performed by thermal transfer.

Therefore, in the ink ribbon cassette of this embodiment, the ink ribbon 1 faces the traveling path of the ink ribbon 1 between the printer head insertion recess 3 and the supply hub 2a, and when the ink ribbon 1 travels, Two sliding portions 41 and 42, which are in sliding contact with the ink surface side of the ink ribbon 1, are provided in the cassette body.

To further explain the ink ribbon cassette of the present embodiment, as shown in FIG. 1, one of the sliding contact portions (first sliding contact portion) 41 is the back tension spring 71 and the slack eliminating spring 73. And a part of the peripheral wall of the cassette main body facing the running path of the ink ribbon 1 between and is projected so as to slightly bend the running path. The other of the sliding contact portions (second sliding contact portion) 42 is the ink ribbon 1 on the traveling path of the ink ribbon 1 between the slack eliminating spring 73 and the printer head insertion recess 3. One fixing pin is erected from the cassette body at a position where the traveling body can be bent by abutting against.

Further, in the ink ribbon cassette of the present embodiment, as shown in FIG. 1, one end side of the guide plate arranged so as to face the slack eliminating spring 73 is attached to the back surface of the ink ribbon 1 (the ink surface). Is the third sliding contact portion 43 in the cassette body that is in sliding contact.

In the ink ribbon cassette of the present embodiment configured as described above, the ink ribbon 1 that is fed and runs from the supply hub 2a during printing is such that the ink surface side is between the supply hub 2a and the printer head 5. On the traveling path of the ink ribbon 1, the sliding contact with the first and second sliding contact portions 41, 42 of the cassette body occurs, and the frictional heat of the friction heats the ink surface side of the ink ribbon 1. Even in a printer in which the energy (heat) transferred from 5 is relatively small, the ink of the ink ribbon 1 is easily melted, and therefore printing can be performed reliably without fear of fading.

Further, in the ink ribbon cassette of this embodiment, the back surface of the ink ribbon 1 is configured to be in slidable contact with the third slidable contact portion 43 of the cassette body at the time of printing. 1 is also heated by its frictional heat, and the ink of the ink ribbon 1 is more easily melted.

It should be noted that the present invention is not limited to the above-described embodiment, and faces the running path of the ink ribbon between the recess for inserting the printer head and the supply hub, and is not limited when the ink ribbon is running. It suffices to provide two or more sliding portions in the cassette body where the ink surface of the ink ribbon slides.

For example, the ink ribbon cassette of the present invention has a cassette that can be used in reverse, that is, the printer head insertion recess 3 is two, and instead of the supply hub 2a and the winding hub 2b, a pair of winding and By accommodating the supply hub and symmetrically disposing the back tension spring 71 and the tension spring 72, the cassette is turned upside down and mounted on the printer. The cassette may be configured so that the winding function and the feeding function are also reversed.

[0020]

[Effect of device]

 The ink ribbon cassette of the present invention does not cause the ink in the ink ribbon to be completely melted even when it is used in a printer in which a relatively small amount of heat is transferred from the printer head during printing, and therefore, there is no fear that printing will be blurred.

[Brief description of drawings]

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

FIG. 2 is a view corresponding to FIG. 1 in a conventional ink ribbon cassette.

[Explanation of symbols]

 1 Ink Ribbon 2a Supply Hub 2b Winding Hub 3 Printer Head Inserting Concave 41 Sliding Contact 42 Sliding Contact 43 Sliding Contact

Claims (2)

[Scope of utility model registration request] 1. An ink ribbon cassette having at least one printer head insertion recess on the front end side of a cassette accommodating an ink ribbon winding supply hub and a winding hub, wherein the printer head insertion recess and the supply hub are provided. An ink ribbon cassette characterized in that two or more sliding contact portions, which face the running path of the ink ribbon between and, are in sliding contact with the ink surface side of the ink ribbon when the ink ribbon is running, are provided in the cassette body. 2. A cassette main body is provided with a sliding contact portion which faces a running path of the ink ribbon between the recess for inserting the printer head and the supply hub and is in sliding contact with the back side of the ink ribbon when the ink ribbon is running. The ink ribbon cassette according to claim 1.