JP2576447Y2 - Wire dot color recording device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire dot color recording apparatus, and more particularly, to an improvement in a mechanism for attaching and detaching a ribbon cassette.

[0002]

2. Description of the Related Art A color ink ribbon which is dyed into a plurality of colors in the width direction of a ribbon and fed in the width direction of the recording paper in a wire dot color recording apparatus is shifted back and forth in the feeding direction of the recording paper. 2. Description of the Related Art There is a type in which dot recording is performed on a recording sheet by opposing a dot wire mounted on a carriage that moves a predetermined color in the width direction of the recording sheet.

FIG. 5 shows an example of such a conventional wire dot color recording apparatus. In the figure, reference numeral 1 denotes a color ink ribbon, which is dyed into a plurality of colors along the width direction. Reference numeral 2 denotes a ribbon cassette for accommodating the color ink ribbon 1, and reference numeral 3 denotes a ribbon cassette holder to which the ribbon cassette 2 is detachably attached. Both ends of the ribbon cassette holder 3 are rotatably attached to left and right side plates 4 and 5 constituting a frame via shafts (for example, 6). The color ink ribbon 1 stored in the ribbon cassette 2 is taken up by a motor (not shown). 7 is a recording paper, and 8 is a carriage. The recording paper 7 is fed at a predetermined speed by a feeding mechanism (not shown), and the carriage 8 is moved by a moving mechanism (not shown).
Is reciprocated in the width direction. And the carriage 8
Is mounted with a dot wire (not shown) for performing dot recording on the recording paper 7. 9 is the ribbon cassette holder 3
Is connected to the ribbon cassette holder 3 by a sector gear for swing-shifting. Reference numeral 10 denotes a motor for rotating the gear 9. Reference numeral 11 denotes a photosensor that outputs an initial position signal of the ribbon cassette holder 3, and is attached to the bracket 12. Reference numeral 13 denotes a shutter that is linked to the rotation of the ribbon cassette holder 3, one end of which is attached to the ribbon cassette holder 3,
The other end is formed to cross the photo sensor 11.

In such a configuration, the ribbon cassette holder 3 swings back and forth in the feeding direction of the recording paper 7 according to the rotation of the motor 10. This allows
By controlling the rotation direction and the rotation amount of the motor 10 based on the initial position signal output from the photo sensor 11, a predetermined color of the color ink ribbon 1 is
Can be opposed to the dot wire mounted on the
Dot recording can be performed on the recording paper 7 in a predetermined color.

FIG. 6 is a structural view showing an example of a ribbon cassette attaching / detaching mechanism in a conventional wire dot color recording apparatus. A protrusion 14 is formed at one end of the ribbon cassette 2, and a latch 15 that can be displaced from the front is integrated with the other end. On one side of the ribbon cassette holder 3, there is provided a hole 16 into which the projection 14 fits, and on the other side, there is provided a hole 17 with which the latch 15 is engaged.

When the ribbon cassette 2 is mounted on the ribbon cassette holder 3, the projection 14 at one end must be
4 and the other end is pushed in, and the latch 15 on the other end is engaged with the hole 17. To remove the ribbon cassette 2 from the ribbon cassette holder 3, the latch 15 at the other end is displaced by operating from the front surface, disengaged from the hole 17, and pulled out toward the user.

[0007]

However, in the conventional ribbon cassette attaching / detaching mechanism having such a structure, when the ribbon cassette 2 is mounted on the ribbon cassette holder 3, the ribbon cassette holder 3 rotates in accordance with the pushing of the ribbon cassette 2. There is a problem that it cannot be easily attached.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a wire dot color recording apparatus in which a ribbon cassette can be easily mounted.

[0009]

SUMMARY OF THE INVENTION A wire dot color recording apparatus according to the present invention accommodates a color ink ribbon dyed into a plurality of colors along the width direction of the ribbon so as to be movable along the width direction of the recording paper. The ribbon cassette is detachably attached to the ribbon cassette holder, and the predetermined color of the color ink ribbon is shifted in the width direction of the recording paper by rotating the ribbon cassette holder back and forth along the recording paper feeding direction. In a wire dot color recording apparatus that performs dot recording on recording paper in opposition to a dot wire mounted on a moving carriage, the ribbon cassette holder is rotatably attached to one side of the ribbon cassette holder via a hinge, and has a free end. On one surface, an engaging portion that engages with the ribbon cassette mounted on the ribbon cassette holder is formed, A lever having an engagement protrusion formed on the other surface of the free end, and a biasing member mounted on the back surface of the ribbon cassette holder so as to bias the mounting end of the lever to regulate the open / close position of the lever. And a stopper attached to the side plate of the main body frame such that the engagement projection of the lever is fitted with the lever opened, and the engagement projection is fitted to the stopper with the lever opened. , The ribbon cassette holder is fixed at an arbitrary rotation angle.

[0010]

When the lever is closed, the lever is urged by the urging member and is engaged with a part of the front surface of the ribbon cassette so that the ribbon cassette containing the color ink ribbon does not come out of the ribbon cassette holder.

[0011] Even when the lever is opened, the lever is urged by the urging member to release the engagement with a part of the front surface of the ribbon cassette and to be fitted to the stopper portion attached to the side plate of the main body frame.

Thus, when the ribbon cassette is attached / detached, the ribbon cassette holder can be connected and fixed to the main body frame via the lever, and the ribbon cassette can be easily attached / detached.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; FIG. 1 is a block diagram of an embodiment of the present invention, FIG.
1 is an enlarged view of a portion A in FIG. 1, FIG. 3 is a sectional view taken along the line BB of FIG. 2 for explaining the operation of the lever, and FIG. 4 is a view of the portion A in FIG.

In each of these figures, reference numeral 18 denotes a lever, and a hinge 1 is provided on one side of the ribbon cassette holder 3.
9 so as to be rotatable. The lever 1
An engaging portion 20 for engaging with the ribbon cassette 2 mounted on the ribbon cassette holder 3 is formed on one surface of the free end of 8, and an engaging projection 21 is formed on the other surface of the free end. . The mounting end is formed in a swirl shape so that the fixed state of the lever 18 can be switched in the left and right rotation directions around the neutral position.

Reference numeral 22 denotes a leaf spring used as an urging member, which is attached to the back of the ribbon cassette holder 3 so as to urge the mounting end of the lever 18 to fix the lever 18 at each of the opened and closed positions. I have.

Reference numeral 23 denotes a fan-shaped stopper constituting a stopper portion. A plurality of grooves 24 into which the engaging projections 21 of the lever 18 are fitted when the lever 18 is opened are within a shift angle range of the ribbon cassette holder 3. And is attached to the side plate 4 of the main body frame.

The operation of the above-configured device will be described. FIG. 2A shows a state in which the lever 18 is opened, and the lever 18 is urged clockwise D by the leaf spring 22 so that the ribbon cassette 2 is opened.
The engagement between the engagement portion 20 and the engagement portion 20 is released, and the engagement protrusion 21 is fixed in a state of being fitted into the groove 24 of the stopper portion 23. As a result, the ribbon cassette holder 3 is connected and fixed to the side plate 4 constituting the main body frame via the lever 18, so that the ribbon cassette holder 3 does not rotate when the ribbon cassette 2 is attached or detached.
Can be attached and detached.

FIG. 2B shows a state in which the lever 18 is closed, and is urged in the counterclockwise direction E by the leaf spring 22 so that the ribbon cassette 2 and the engaging portion 20 are engaged with one end of the front surface of the ribbon cassette 2. The engagement projection 21 is provided in the groove 24 of the stopper 23.
Break away from Thereby, the ribbon cassette 2 is stably fixed to the ribbon cassette holder 3.

With such a configuration, the ribbon cassette holder can be easily attached and detached without rotating the ribbon cassette holder when attaching and detaching the ribbon cassette as in the conventional case.

In the above embodiment, an example in which a leaf spring is used as the biasing member has been described, but a coil spring or the like may be used.
Further, as the stopper, a notch hole may be provided directly on the side plate instead of the sector-shaped stopper, and the engaging projection of the lever may be fitted. In this case, the number of parts can be reduced.

[0021]

[Effect of the Invention] As described in detail above, according to the present invention, the ribbon cassette holder can be selectively connected and fixed to the main body frame via the lever in conjunction with the opening and closing operation of the lever, and the ribbon cassette holder is fixed. Thus, a wire dot color recording apparatus in which the ribbon cassette can be easily attached / detached in the mounted state can be realized.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is an enlarged view of a portion A in FIG.

FIG. 3 is a sectional view taken along the line BB of FIG. 2 for explaining the operation of the lever;

FIG. 4 is a view of a portion A in FIG.

FIG. 5 is a configuration diagram illustrating an example of a conventional wire dot color recording apparatus.

FIG. 6 is a configuration diagram showing an example of a ribbon cassette attaching / detaching mechanism in a conventional wire dot color recording apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Color ink ribbon 2 Ribbon cassette 3 Ribbon cassette holder 4,5 Side plate 7 Recording paper 8 Carriage 18 Lever 19 Hinge 20 Engagement part 21 Engagement projection 22 Leaf spring (biasing member) 23 Stopper

Claims (1)

(57) [Scope of request for utility model registration] 1. A ribbon cassette in which a color ink ribbon dyed in a plurality of colors along a width direction of a ribbon is accommodated in a ribbon cassette holder so as to be movable along a width direction of a recording paper, and is attached to a ribbon cassette holder in a detachable manner. By rotating the ribbon cassette holder back and forth along the recording paper feed direction, a predetermined color of the color ink ribbon is opposed to a dot wire mounted on a carriage that moves along the width direction of the recording paper. In a wire dot color recording apparatus that performs dot recording on a ribbon cassette, the ribbon cassette holder is rotatably mounted on one side of the ribbon cassette holder via a hinge, and a free end of the ribbon cassette holder mounted on the ribbon cassette holder. A lever having an engaging portion to be engaged, and an engaging projection formed on the other surface of the free end; A biasing member attached to the back of the ribbon cassette holder so as to bias the mounting end to regulate the opening / closing position of the lever; and a main body frame such that the engagement protrusion of the lever is fitted with the lever opened. And a stopper attached to the side plate of (1), wherein the ribbon cassette holder is fixed at an arbitrary rotation angle by fitting the engaging projection to the stopper with the lever opened. apparatus.