JPH02238982A - Ribbon cartridge - Google Patents

Abstract

PURPOSE:To inhibit a fluctuation of load at the time of leading out a ribbon to perform a stable ribbon feed by providing a rib having an open part on the center of a ribbon pay-out part and a bank provided with a rib tapered vertically to said rib. CONSTITUTION:A ribbon 1 is driven by a feed roller 2 and a pressure roller 3 to be held and contained in a cassette case 4. The cassette case 4 is provided with a bank 5 having an open part 9 on the center of a pay-out side thereof and a vertically tapered rib. Furthermore, another bank 6 is disposed at a position downstream thereof to brake the ribbon which has passed through the bank 5 to prevent a clog at a gate 7. In addition, the leaf spring 7 applies a proper tension at the time of a ribbon feed to prevent the slack of the ribbon. Since the bank gradually brakes the flow of the ribbon by its tapered rib and has the open part at the center thereof, the ribbon can be prevented from being caught even with a change in ribbon form and a pressure increase in a containing part.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ribbon cartridge, and particularly to a ribbon cartridge for a printing device. [Prior Art] Conventionally, this type of ribbon cartridge has a bank structure consisting of one or two straight ribs in the ribbon feeding section of the ribbon storing section, as shown in Fig. 3. It was configured to apply a brake to the ribbon. [Problems to be Solved by the Invention] In the conventional ribbon cartridge described above, as the ribbon gets old and expands due to being shot, the pressure in the ribbon storage section increases, and the ribbon gets caught on the ribs described above. The ribbon cartridge of the present invention has disadvantages such as the ribbon draw-out load fluctuating and ribbon feeding failure. It has a rib and a bank provided with a tapered rib in a direction perpendicular to the rib. [Example] Next, the present invention will be explained with reference to the drawings. Fig. 1 shows one embodiment of the present invention. An example ribbon cartridge is shown. In Fig. 1, a ribbon 1 is driven by a feed roller 2 and a pressure roller 3, and is fan-held and stored in a cassette case 4. The cassette case 4 has a central opening on the repeating side. 9 and is provided with a bank 5 having vertically tapered ribs.
There is another bank 6 in the back, which brakes the ribbon that has passed through the bank 5 and prevents it from clogging at the gate 7. The leaf spring 7 provides appropriate tension during ribbon feeding and prevents the ribbon from sagging. The bank used in this example has tapered ribs to prevent clogging at the repeating portion of the ribbon, which gradually brakes the flow of the ribbon, and by opening the center of the bank, the shape of the ribbon changes and is stored. This prevents the ribbon from getting caught even when the pressure is high. [Effects of the Invention] As explained above, the present invention has a bank structure in which the ribbon is gradually braked at the ribbon feeding section and can be drawn out without resistance, thereby suppressing load fluctuations when drawing out the ribbon and ensuring stable ribbon feeding. enable.

[Brief explanation of drawings]

Fig. 1 is a plan view showing a ribbon cartridge according to an embodiment of the present invention, Fig. 2 is a plan view showing the A-A@ plane of Fig. 1, and Fig. 3 is a plan view showing a conventional ribbon cartridge. ．．

Claims (1)

[Claims] A ribbon storage section of a ribbon cartridge of a printing device, wherein the ribbon cartridge has a bank in which a rib with an opening is provided in the center of the ribbon feeding section and a tapered rib is provided in a direction perpendicular to the rib. .