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Robbon box with ribbon loose-proof mechanism

A color ribbon box and ribbon box technology, applied in the field of color ribbon box, can solve problems such as users forget to operate

Inactive Publication Date: 2007-08-15
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for a user, this is a cumbersome procedure, so the user often forgets to operate
Even if the user has not forgotten to remove the slack in the ribbon, the user will turn the take-up spool in the opposite direction from which the ribbon was wound, resulting in more slack in the ribbon

Method used

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  • Robbon box with ribbon loose-proof mechanism
  • Robbon box with ribbon loose-proof mechanism
  • Robbon box with ribbon loose-proof mechanism

Examples

Experimental program
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Effect test

Embodiment Construction

[0034] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

[0035] FIG. 1 shows an internal structure of a ribbon cassette of an ink ribbon cassette according to an embodiment of the present invention. The tape cassette 1 is used for a tape printer (not shown) that prints on a long-sized printing tape.

[0036] The tape cassette 1 includes a cassette body 11 made of resin, for example, which has a substantially rectangular parallelepiped form. The box body 11 is composed of an upper part and a lower part, only the lower part is shown in FIG. 1 . A transparent tape 12 as a printed medium, a ribbon 13 for printing on the transparent tape 12, and a colored double-sided adhesive tape 14 bonded to the back side of the printed transparent tape, they are wound on respective spools and housed in box 11. A take-up spool 16 for receiving used ribbon 13 is also disposed within the cassette body 11 .

[0037] The transpar...

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PUM

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Abstract

A ribbon cassette includes a ribbon supply spool, and a ribbon take up spool that takes up an ink ribbon from the ribbon supply spool by rotating in a first rotation direction. The ribbon take up spool is provided with an engaging portion including first and second walls arranged in the second rotation direction in this order. The first wall is defined along a plane including a rotation axis of the ribbon take up spool. The second wall is inclined to face outside the ribbon take up spool. The ribbon cassette further includes an engaging member. The engaging member resiliently engages with the engaging portion by dropping into a space defined between the first and second walls and thereby prevents the ribbon take up spool from rotating in a second rotation direction opposite to the first rotation direction. The engaging member, however, comes off from the engaging portion when the ribbon take up spool rotates in the first direction.

Description

technical field [0001] The present invention relates to an ink ribbon cassette, and more particularly, to an ink ribbon cassette provided with a supply spool on which the ribbon is wound, a take-up spool for receiving the ribbon from the supply spool, and a simple mechanism for preventing ribbon slack. Background technique [0002] Conventionally, many types of ribbon cassettes have been proposed, each having a supply spool and a take-up spool. In this type of ribbon cassette, since the ribbon supply spool is rotatably disposed in the ribbon cassette and no driving force is applied to the ribbon supply spool to control its rotation, slack often occurs in the ribbon. The slack in the ribbon prevents the ribbon from being properly fed from the ribbon cassette when it is placed in the printer, thus affecting proper printing. [0003] Japanese Patent Application Provisional Publication No. HEI 8-25768 discloses an ink ribbon cassette capable of avoiding the above-mentioned pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41J33/52B41J32/00B41J31/00B41J32/02B41J35/08
CPCB41J35/08
Inventor 原田大令堀内誉史
Owner BROTHER KOGYO KK
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