JPH04312880A - Jig for installation of ink ribbon - Google Patents

Abstract

PURPOSE:To enable an ink ribbon to be easily inserted into a specific position by applying deflection suitable for installation to a jig for installation by a method wherein a support part of the jig for installation is operated. CONSTITUTION:A central part of an ink ribbon 2 exposed from a ribbon cassette 1 is put between an ink ribbon pinching parts of a jig 11 for installation of the ink ribbon, a support part at a rear end of the ink ribbon installing jig 11 is brought to an installing position by grasping it by hands. Deflection suitable for installation, i.e., deflection which is likely to pass through between a guide roller and a printing head and between a tip part of the printing head and a ribbon protector is applied to the jig for installation. Then, the ink ribbon 2 is inserted into a specific position among the guide roller, the printing head, and the ribbon protector under a state wherein the tip part of the printing head is going to enter 3 notch part of the ink ribbon installing jig 11.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for mounting an ink ribbon on an impact dot matrix type printer or the like.

0002

2. Description of the Related Art FIG. 6 is a plan view showing an ink ribbon set in an impact dot matrix printer. In this figure, a ribbon cassette 1 has an ink ribbon storage section 1a and ribbon passages 1b and 1c protruding from both ends thereof. Reference numeral 2 denotes an ink ribbon, which travels from the ink ribbon storage section 1a through one of the ribbon paths 1b and 1c to the exposed portion, passes through the other of the ribbon paths 1b and 1c, and is fed into the ink ribbon storage section 1a again. It looks like this. 3 is a print head, 4 is a guide roller that guides the ink ribbon 2 near the print head, and 5 is a platen. Reference numeral 6 designates a print head 3 and a guide roller 4 mounted thereon facing the platen 5, and carriages 7a and 7b that move in space relative to the platen 5 are guide shafts that guide the space movement of the carriage 6. 8 is
This ribbon protector is provided to prevent the print paper from being soiled by the ink ribbon 2 when the carriage 6 moves in space or when the print paper (not shown) runs.

Conventionally, this type of printer has an ink ribbon 2.
When installing the ink ribbon, the operator grasps the ink ribbon 2 with his fingers, inserts it between the tip of the print head 3 and the ribbon protector 8, and hooks the ink ribbon 2 on the guide roller 4.

0004

However, with the above method, there is a problem in that the operator's fingers become stained with ink from the ink ribbon, and the ink on the hands tends to stain the printing paper. Also, in order to insert the ink ribbon between the print head and the ribbon protector,
You have to hold your finger close to the print head,
This is extremely dangerous if the print head is hot, such as when the printer has just finished printing.

[0005] The present invention prevents the operator's fingers from getting stained with ink from the ink ribbon when installing the ink ribbon into the printer, and avoids the danger of having to bring the operator's fingers close to the high-temperature print head. An object of the present invention is to provide an ink ribbon mounting jig that can be used to attach an ink ribbon.

[0006]

[Means for Solving the Problems] The ink ribbon mounting jig of the present invention has a notch in the center of the tip that is slightly wider than the tip of the print head of the printer, and
A pair of left and right ink ribbon clamping parts are formed on both sides of the notch and are made up of two thin plates stacked one above the other so as to be able to clamp the ink ribbon, and the pair of left and right ink ribbon clamping parts are It has a configuration consisting of a guide part provided at each end and defining the depth at which the ink ribbon is held, and a deformable holding part provided at the rear end.
This aims to achieve the above objectives.

[0007]

[Operation] Since the ink ribbon mounting jig of the present invention is constructed as described above, the ink ribbon mounting jig has the ink ribbon clamped by the pair of left and right ink ribbon clamping portions provided at the tip of the ink ribbon mounting jig. By grasping and manipulating the holding portion at the end by hand, the mounting jig is given appropriate flexure for mounting, and the ink ribbon can be inserted into a predetermined position between the guide roller, print head, and ribbon protector. The guide portions provided on each of the pair of left and right ink ribbon holding portions define the depth at which the ink ribbon is held, and guide the ink ribbon to a predetermined position on the guide roller when the ink ribbon is attached. After that, only the ink ribbon mounting jig is pulled out from the printer, and the mounting work is completed. At this time, since the ink ribbon mounting jig has a notch in the center of the tip that is slightly wider than the print head tip, the print head may be damaged when the ink ribbon mounting jig is pulled out. That's not the case.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing an embodiment of a ribbon cassette to which an ink ribbon mounting jig of the present invention is attached. In this figure, 1 is a ribbon cassette;
It has an ink ribbon storage section 1a and ribbon passages 1b and 1c protruding from both ends thereof. 2 is an ink ribbon, which runs from the ink ribbon storage section 1a to the ribbon path 1b.
, 1c, and runs through the exposed portion of the ribbon path 1b.
, 1c, and is fed into the ink ribbon storage section 1a again. Reference numeral 11 denotes an ink ribbon mounting jig used when installing the ribbon cassette 1 into a printer.

As shown in FIG. 2, the ink ribbon mounting jig 11 has a notch 12 at the center of its tip, the width of which is slightly wider than the tip of the print head of the printer. Further, on both sides of the notch 12, a pair of left and right ink ribbon holding parts 13 and 14 are provided, which are formed by two stacked upper and lower thin plates. Each of the left and right pair of ink ribbon holding parts 13 and 14 is
Print head 3 tip of printer and one guide roller 4
The length and width of the ink ribbon are slightly smaller than the traveling distance of the ink ribbon between the ink ribbons. In addition, the ink ribbon holding parts 13 and 14
The depth at which the ink ribbon is held is appropriately defined by guide portions 15 and 16 formed by staples or the like on the ink ribbon holding portions 13 and 14, respectively.

One of the two stacked thin plates of the upper and lower ink ribbon holding parts 13 and 14 has a chamfered edge at its tip corner.
7 and 18 are applied, and the other one is not applied. As shown in FIG. 3, when the ink ribbon 2 is held between the ink ribbon holding parts 13 and 14, the ink ribbon 2 is engaged with the end corner of the non-chamfered side. It is designed so that it can be easily clipped. Reference numeral 19 denotes a holding part for holding the ink ribbon mounting jig 11 by hand, and is elastic and can be freely deformed.

The ink ribbon mounting jig 11 is made of a light material such as paper, and is preferably treated to prevent the ink from the ink ribbon 2 from penetrating into it. For example, the ink ribbon mounting jig 11 as described above is shown in FIG.
As shown in FIG. 1, it is possible to manufacture the thin plate very easily by forming a thin plate having chamfers 17 and 18 on only the notch 12 and one of the left and right sides, and folding the left and right sides in half. Can be done.

Next, the operation of the ink ribbon mounting operation will be explained. FIG. 5 is an explanatory diagram showing a method of mounting the ink ribbon 2 on a printer using the ink ribbon mounting jig 11 of the present invention, in which (a) is a plan view and (b) is a side view. As shown in Figure 5, the ribbon cassette 1
The central part of the ink ribbon 2 exposed from the ink ribbon holding part 13 of the ink ribbon mounting jig 11 of the present invention,
14, and hold the holding part 19 at the rear end of the ink ribbon mounting jig 11 with your hands to bring it to the mounting position. The mounting jig 11 is given a deflection so that it passes between the print head tip and the ribbon protector 8 and between the print head 3 and the right guide roller 4. Then, the ink ribbon 2 is inserted into a predetermined position between the guide roller 4, the print head 3, and the ribbon protector 8, with the tip of the print head 3 entering the notch 12 of the ink ribbon mounting jig 11. .

A pair of left and right ink ribbon holding parts 13 and 14
The guide portions 15 and 16 provided in each of the guide portions 15 and 16 define the depth at which the ink ribbon 2 is held, guide the ink ribbon 2 to a predetermined position on the guide roller 4 when installing the ink ribbon, and guide the ink ribbon 2 to a predetermined position on the guide roller 4. Ribbon holding part 13,
It also has the function of reinforcing 14 and retaining its shape.

Next, turn the knob 1a of the ribbon cassette 1 to eliminate slack in the ink ribbon 2. ink ribbon 2
By eliminating slack, the ink ribbon 2 can be guided by the guide roller 4. In this state, if only the ink ribbon mounting jig 11 is pulled out, the installation of the ink ribbon 2 into the printer is completed. At this time, since the ink ribbon mounting jig 11 has a notch 12 at the center of the tip that is slightly wider than the tip of the print head 3, the print head may be damaged by pulling out the mounting jig. You won't be disappointed.

Although the present invention has been specifically explained above based on examples, it goes without saying that the present invention is not limited to the above-mentioned examples and can be modified in various ways without departing from the gist thereof. stomach. For example, although paper is used in the embodiment as the material for the ink ribbon mounting jig 11 of the present invention, it may be made of a light material such as a plastic film.
Elastic materials can also be used. Further, guide portions 15 and 1 provided on the ink ribbon holding portions 13 and 14
Although a stapler is used as the ink ribbon holding section 6, other methods may be used, such as gluing the upper and lower two thin plates of the ink ribbon holding parts 13 and 14 at predetermined positions.

[0016]

As described in detail above, according to the ink ribbon mounting jig of the present invention, the ink ribbon is held between the pair of left and right ink ribbon holding parts provided at the tip of the mounting jig. By operating the section by the operator, the mounting jig is given a deflection suitable for mounting, and the ink ribbon can be inserted into a predetermined position between the guide roller, the print head, and the ribbon protector very easily. Therefore, when installing the ink ribbon into the printer,
The operator's fingers are not smeared with ink from the ink ribbon, and the danger of having to place fingers close to the hot printhead is also avoided.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of a ribbon cassette to which an ink ribbon mounting jig of the present invention is attached.

FIG. 2 is a perspective view showing an embodiment of the ink ribbon mounting jig of the present invention.

FIG. 3 is a perspective view for explaining a method of sandwiching an ink ribbon between the ink ribbon clamping portions of the ink ribbon mounting jig of the present invention.

FIG. 4 is a plan view showing an embodiment of the ink ribbon mounting jig of the present invention in a state before completion.

FIG. 5 is an explanatory diagram showing a method of mounting an ink ribbon on a printer using the ink ribbon mounting jig of the present invention.

FIG. 6 is an explanatory diagram showing a conventional method of mounting an ink ribbon on a printer.

[Explanation of symbols]

1 Ribbon cassette 2 Ink ribbon 11 Ink ribbon mounting jig 12 Notch part 13 Ink ribbon holding part 14 Ink ribbon holding part 15 Guide part 16 Guide part 17 Chamfering 18 Chamfer 19 Holding part

Claims (2)

[Claims] Claim 1: A jig for mounting an ink ribbon on a printer, which has a notch in the center of the tip that is slightly wider than the tip of the printer's print head, and is formed on both sides of the notch. a pair of left and right ink ribbon clamping parts made up of two upper and lower thin plates stacked so as to be able to clamp the ink ribbon;
The ink ribbon attachment is characterized by comprising a guide part provided on each of the pair of left and right ink ribbon holding parts and defining the depth at which the ink ribbon is held, and a deformable holding part provided at the rear end part. Jig for use. 2. A top corner of one of the two stacked thin plates provided on each of the pair of left and right ink ribbon holding parts is chamfered. 1. Jig for installing ink ribbon.