JPH037373A - Structure of ribbon cassette - Google Patents

Abstract

PURPOSE:To maintain the high quality of a ribbon cassette without causing unevenness of the density of the ink even when said cassette is transported in the completed state including an ink impregnating material by providing a spring member which urges an ink impregnating material and a transfer roller to separate one from another and a pressuring member which brings said transfer roller into contact with said ink impregnating material. CONSTITUTION:An ink impregnating material 1 including the ink is held in an impregnating material holding member 2, with an end thereof being projected from the holding member 2. Moreover, the ink impregnating material 1 is applied with the pressure from a spring member 3, and therefor remains stationary while it butts against the holding member and a wall portion 11. At this time, the ink impregnating material 1 is separated from the transfer roller 4. Therefore, the ink of the ink impregnating material 1 is not transferred to a ribbon 5 through the transfer roller 4. When a ribbon cassette 15 is mounted to a printing apparatus, a pressuring member rotates the transfer roller 4 so that the ink impregnating material 1 comes in contact with the transfer roller 4 through a hole 13. Simultaneously, the ink included in the ink impregnating material 1 is transferred to the transfer roller 4. The ink adhered to the transfer roller 4 is transferred to the ribbon 5 in accordance with the rotation of the transfer roller.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to the structure of a ribbon cassette that supplies ink contained in an ink-impregnating material to a ribbon using a transfer roller.

(Prior Art) Figure 4 shows the general structure of a ribbon cassette that feeds the ribbon while supplying ink to the ribbon by contacting an impregnated material containing ink with a transfer roller and rotating the transfer roller. The structure and operation of the ribbon cassette will be explained based on FIG. Reference numeral 41 denotes an ink-impregnated material impregnated with ink, which is held by an impregnated material holding member 42. A part of the ink-impregnated material comes out from the impregnated material holding member 42, receives the force of the spring member 43, and is transferred to the transfer roller. 4
It is in contact with 4. The ribbon 45 is connected to the transfer roller 44
and the presser roller 46, and the presser roller 4
6 is held by a presser roller holding member 49. The presser roller 46 receives the force of the roller presser spring 47 through a presser roller holding member 49 and is in contact with the transfer roller 44 . 48 is a ribbon tension spring that presses the ribbon 5 against the wall of the case 50.

Next, the operation of the ribbon cassette once during printing will be explained. When the ribbon cassette, tip, is attached to a printing device and printing is being performed, the transfer roller 44 receives rotational force from the printer body and rotates clockwise, and as a result, the ribbon 45 is sent in the direction of the arrow. The transfer roller 44 contacts the ink-impregnated material 41 and the ink contained in the ink-impregnated material 41 is transmitted to the transfer roller 44, and as the transfer roller 44 rotates, the ink attached to the transfer roller 44 is transmitted to the ribbon 45. Ribbon cassettes 1 and 1 are intended to extend the life of the ribbon cassette by supplying ink to the ribbon during ribbon feeding, and have been widely used in recent years, but they have the following problems.

[Problem to be solved by the invention]

In the ribbon cassette 40 shown in FIG. 4, during transportation or long-term storage, ink in the ink-impregnated material 41 was transferred to the transfer roller 44 and gradually transferred to the ribbon 45. As a result, the ribbon 45 in the vicinity of the area in contact with the transfer roller 44 contained a large amount of ink, and the concentration of ink in other parts of the ribbon 45 was significantly different. When this ribbon cassette was used to print on a printing device, the printing results in a pattern of ink shading. In addition, the paper on which printing is to be printed is easily stained, and beautiful printing cannot be achieved.

One method for solving this problem is to package the impregnating material holding member 42 containing the ink impregnating material 41 and the ribbon cassette containing other components separately, and to store the ink impregnating material 41 during use. A method was adopted in which the impregnated material holding member 42 was attached to a ribbon cassette containing other members. Furthermore, when the printing apparatus is not used for a long period of time, the impregnating material holding member 2 containing the ink impregnating agent is removed from the ribbon assembly 1-40 and stored separately.

Therefore, in order to make beautiful prints using conventional ribbon cassettes, packaging costs are high, and handling of ribbon cassettes is extremely troublesome.

[Means to solve the problem]

In a ribbon cassette which supplies ink contained in an ink-impregnated material to a ribbon by a transfer roller and is removably attached to a printing device, the ribbon cassette includes a spring member that biases the ink-impregnated material and the transfer roller to separate from each other; A structure of a ribbon cassette, comprising a pressing member provided in the printing device that brings a roller into contact with the ink-impregnated material.

[Effect]

When the ribbon cassette of the present invention is not installed in a printing device, the transfer roller and the ink-impregnated material are in a state where the spring member receives the power, and the ink in the ink-impregnated material is not transmitted to the transfer roller. Therefore, it is not transmitted to the ribbon.
When the ribbon cassette of the present invention is installed in a printing device, a pressing member provided integrally with the printing device moves the impregnating material holding member and brings the impregnating material holding member into contact with the transfer opening roller.In this state, the ribbon cassette The printer rotates the transfer roller by receiving rotational force from the printing device, and feeds the ribbon while supplying ink to the ribbon.

〔Example〕

FIG. 1 shows a top view of a ribbon cassette 1 according to an embodiment of the present invention, which is not installed in a printing device.

An ink-impregnated material 1 containing ink is contained in an impregnated material holding member 2, and one end of the ink-impregnated material 1 comes out from the impregnated material holding member 2. The impregnating material holding member 2 consists of an impregnating material storage part 23 and a spring part 21, and has a swinging hole 22. In the swinging hole 22, there is a holding member rI made integrally with the case lO.
1wJ shaft 12, and the holding member rJIIIJ
It is possible to swing around the shaft 12. Further, the impregnating agent holding member 2 receives the force of the spring member 3 and remains stationary in a state where it collides with the cuticle contacting wall portion 11 of the holding portion, and at this time, the ink impregnating agent 1 and the transfer roller 4 are separated from each other by a distance M. ing. Therefore, the ink of the ink impregnating agent 1 is not transmitted to the transfer roller 4 and is not transmitted to the ribbon 5.

FIG. 2 shows a perspective view when the ribbon cassette 15 according to the embodiment of the present invention is being installed in a printing device, 31 indicates a part of the printing device to which the ribbon cassette 11 is installed, and 32 indicates the printing device. This is a pressing member provided integrally with 31.

33 is a ribbon feeding drive shaft provided in the printing device 31;
When the ribbon cassette L1 is installed in the printing device 31, it tightly engages the transfer roller 4, and the ribbon feed drive shaft 33 rotates, thereby rotating the transfer roller 4 and feeding the ribbon 5.

The pressing member 32 has a conical shape with a thin tip.
When the ribbon cassette 15 is installed in the printing device 31, the impregnating agent passes through the holding member operating hole 13 opened in the case 10 and presses one side of the impregnating agent holding member 2 with the conical slope at the tip of the holding member operating projection 32. The holding member 2 moves in the direction of contacting the transfer roller 4 by being pushed by the holding member operating protrusion 32, and the impregnating agent 1 comes into contact with the transfer roller 4, but the conical tip of the holding member operating protrusion 32 The spring part 21 of the impregnating agent holding member 2 is bent by being pushed by the slope of the shape. Under the reaction force caused by the bending of the spring part 21, the ink impregnating agent 1 and the transfer roller 4 come into contact with each other. A top view of the state is shown in FIG. 3. In the state shown in FIG. 3, the ribbon feed drive shaft 33 coming out of the printing device 31 rotates clockwise, thereby rotating the transfer roller 4 clockwise. the ribbon 5 using the same principle as explained in Fig. 4.
Send in the direction of the arrow. At the same time, the ink contained in the ink impregnation agent 1 is transferred to the transfer roller 4, and as the transfer roller 4 rotates, the ink attached to the transfer roller 4 is transferred to the ribbon 5.

The present invention focuses on the amount of movement of the impregnating agent holding member 2 determined by the shape of the holding member movement protrusion 32, the amount of movement until the ink impregnating agent 1 contacts the transfer roller 4, and the spring portion 21 of the impregnating agent holding member 2. By setting the spring force of , when the ribbon cassette is installed in the printing device, the transfer roller 4
The ink-impregnated material 1 is designed to come into contact with the ink-impregnated material 1.

In the embodiment of the present invention, the impregnating agent holding member 2 is connected to the holding member swinging shaft 1.
Although the holding member swinging shaft 12 is eliminated and the impregnating material holding member 2 is moved linearly, it is possible to do so. Further, the same method is used in which the impregnating agent holding member 2 is provided with a protrusion extending through the case 10, and the impregnating agent l is brought into contact with the transfer roller 4 by operating the protrusion by attaching it to a printing device. . Further, it is also possible to form an impregnated material holding member in which the spring member 3 is integrated.

(Effects of the Invention) According to the present invention, in a ribbon cassette that feeds the ribbon while supplying ink to the ribbon, the ink-impregnated material is brought into contact with the transfer roller and the transfer roller is rotated. We were able to inexpensively KM high-quality ribbon cassettes that do not show ink shading even when transported as a finished product. Also, even when not used for a long time,
The occurrence of ink shading can be prevented simply by removing the ribbon cassette from the printing device, making the ribbon cassette extremely easy to use.

[Brief explanation of drawings]

FIG. 1 is a top view of a ribbon cassette according to an embodiment of the present invention that is not attached to a printer main body. FIG. 2 is a perspective view of the ribbon cassette according to the embodiment of the present invention being installed in the printer main body. FIG. 3 is a top view of the ribbon cassette according to the present invention when installed in the printer main body. FIG. 4 is a top view of a conventional ribbon cassette. 1... Ink impregnated material 2... Impregnated material holding member 3... Spring member 4... Transfer roller 5... Ribbon 10... Case 11... Holding part cuticle contact wall part 12. ... Holding member swinging shaft 13 ... Holding member operating hole 11 ... Ribbon cassette of the present invention 21 ... Impregnated material holding member spring portion 22 ... Impregnated material holding member swinging hole 31 ... Printing Device 32...Press member 33...Ribbon feed drive shaft or higher

Claims (1)

[Claims] In a ribbon cassette which supplies ink contained in an ink-impregnated material to a ribbon using a transfer roller and is removably attached to a printing device, the ribbon cassette includes a spring member that biases the ink-impregnated material and the transfer roller to separate from each other, and a spring member that biases the ink-impregnated material and the transfer roller to separate from each other; A structure of a ribbon cassette, comprising a pressing member provided in the printing device that brings a roller into contact with the ink-impregnated material.