JP3340241B2 - 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 recording apparatus for performing recording using an ink ribbon.

[0002]

2. Description of the Related Art As a recorder for recording a measured amount on a recording sheet, there is, for example, a recorder which mounts a dot pin and an ink ribbon on a carriage and records a dot on the recording sheet. Then, it is necessary to circulate the ink ribbon in the ink ribbon cassette and always drive the dot pin with a new ink ribbon surface. For this reason, usually, in most cases, one motor dedicated to driving the ink ribbon is provided to feed the ink ribbon.

[0003]

However, when a motor dedicated to feeding the ink ribbon is used, there is a problem that the weight of the recording head becomes heavy, a lot of space is required, and the price becomes high. Further, since the same point is usually hit with a dot pin with respect to the color width of the circulating ink ribbon, the life of the ink ribbon is not sufficient.

SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a recording apparatus capable of feeding an ink ribbon with a simple configuration, small, light, and inexpensively, and extending the life of the ink ribbon. To provide.

[0005]

According to the present invention, there is provided an ink ribbon cassette for accommodating an endless ink ribbon provided on a carriage moving along a guide shaft provided between both side plates, and an ink ribbon cassette provided in the ink ribbon cassette. An ink ribbon cassette, comprising: feeding means having an odd-numbered polygon for feeding the ink ribbon; and contact means provided on the side plate for feeding the ink ribbon by contacting the polygon. Is a recording device provided with a slide means for sliding the in the width direction.

[0006]

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

In FIG. 1, reference numeral 1 denotes a side plate on both sides of a recorder or the like (only one side is shown). A front L-shaped carriage 3 moves left and right in the axial direction of a guide shaft 2 between both side plates 1. In the carriage 3, for example, an ink ribbon cassette 4 containing an ink ribbon 5 having color bands 51, 52, and 53 dyed in three directions in the width direction is provided so as to be movable in the left and right axial directions. The carriage 3 is provided with striking pins 61, 62, 63 opposed to the color bands 51, 52, 53 of the ink ribbon 5 of the carriage 3. The ink ribbon 5 is fed little by little at each hit point. A contact means 91 such as a protrusion or a horizontally long protrusion is provided at a substantially symmetric position inside the both side plates 1. Other components known as recorders are omitted.

The carriage 3 is moved left and right along the guide shaft 2 by driving means (not shown), and the driving pins 61, 6
2 and 63 are driven downward at a predetermined position corresponding to the measured amount and the like, and the recording paper 8 is moved via the ink ribbons 51, 52 and 53.
Record above. The carriage 3 moves to the left or right end of the carriage 3 from right to left, or from one so-called raster scan recording from left to right, or at an appropriate constant interval. The ink ribbon 5 of the contact ink ribbon cassette 4 is fed by a predetermined amount in a certain direction. Although not shown, the ink ribbon cassette 4 is held by a spring means or the like, and is held on the carriage 3 at any position.

That is, as shown in FIG. 2, the endless ink ribbon 5 is housed in a substantially rectangular parallelepiped ink ribbon cassette 4 in a zigzag manner, and the ink ribbon 5 is guided outside by a guide portion 4a.
The striking pins 61, 62 and 63 in FIG. 1 are struck downward. Then, the ink ribbon 5 is pulled into the one end inside the ink ribbon cassette 4 by the pull-in roller 10 and the pressing roller 11, and is fed in the direction of arrow A. A gear 12 is provided outside the shaft of the feed roller 10, and a feeding means comprising a crown gear 13 and a polygon 14 such as a triangle is provided in a 90-degree direction so as to mesh with the gear 12.

As shown in FIG. 3, the crown gear 13 and the polygonal body 14 are integrally formed, and the cylindrical body 130 is
The ink ribbon cassette 4 shown in FIG. 2A is rotatably provided on a mounting shaft 15 of the ink ribbon cassette 4 and is prevented from falling off by appropriate means.

Next, the operation will be described with reference to FIG. In FIG. 4, contact means 91 and 92 are provided on both side plates 11 at a fixed distance above or below the rotation axis of the gear 13 and polygonal body 14 at the center line C in the moving direction of the carriage. Then, as shown in FIG. 4A, the ink ribbon cassette 4 on the carriage moves in the left L direction. At this time, the upper side of the polygon 14 is convex and the lower side is parallel. Then, as shown in FIG. 4 (b), the contact means 91 on the upper surface comes into contact with the upper end of the polygonal body 13 and a predetermined angle in the clockwise arrow B direction (120 degrees because it is a triangle).
Rotate. Since the crown gear 13 also rotates, the feed roller 10 shown in FIG. 2 also rotates by a predetermined amount via the gear 12 meshing with the crown gear 13, and the ink ribbon 5 is fed in a predetermined length A direction. Then, as shown in FIG. 4 (c), the polygon 13 is completely rotated after reaching the left end, and the upper side thereof is parallel to the center line C. Then, movement in the opposite right R direction is started.

As shown in FIG. 4D, the ink ribbon cassette 4 moves in the right R direction. At this time, the upper side of the polygon 14 is parallel and the lower side is convex. Then, FIG. 4 (e)
As described above, the lower abutting means 92 abuts on the lower end of the polygonal body 14 and rotates a predetermined angle in the clockwise arrow B direction as in FIG. 4B. Since the crown gear 13 also rotates, the feed roller 10 of FIG. 2 also rotates by a predetermined amount via the gear 12, and the ink ribbon 5 is fed in a predetermined length A direction. Then, the state returns to the state of FIG.

As described above, the ink ribbon cassette 4 moves right and left together with the carriage, and the abutting means 91 of the side plate,
92 by alternately contacting and colliding with each other.
4, the crown gear 13, the gear 12, and the feed roller 10 rotate to feed the ink ribbon 5 by a predetermined amount.

As described above, the polygon 14 may be a pentagon, a heptagon, or the like in addition to a triangle, as long as the polygon has an odd number of corners. One becomes parallel and the other has a tip, and these are alternately repeated, and rotate in a certain direction.
The abutting means 91 and 92 need only be long enough to make the polygons 14 parallel, and have a positional relationship that allows the tips of the polygons 14 to be alternately pushed and made parallel to each other. Is the same not only at the lower surface of the ink ribbon cassette 4 but also at any position such as the back surface. That is, FIG. 4 may be viewed from above or from the back.

By the way, as shown in FIG. 5 (a), for example, projecting slide means 40 are provided on both sides of the upper end of the ink ribbon cassette 4, for example. The ink ribbon cassette 4 moves right and left together with the carriage 3, and alternately contacts and collides with the contacting means 91 and 92 of the side plate 1 as described above, thereby rotating the polygon 14 in the same constant direction B by a predetermined angle. , Crown gear 13, gear 12, feed roller 10
Rotates and feeds the ink ribbon 5 by a predetermined amount,
When the projecting slide means 40 on both sides of the upper end of the ink ribbon cassette 4 abuts on the both side plates 1, FIG.
As shown in (b), the user moves and slides inward by a predetermined amount d. That is, each color band 51, 52, 5 of the ink ribbon
3 in the width D of each color band, and the relative position takes two positions within the width D of each color band, and is in the form of a staggered foot. Since the hit points R1 and R2 are formed on two lines as compared with the case where no ink ribbon is provided, the life of the ink ribbon is extended about twice or more.

As shown in FIG. 6, holding members 91a, 92 are provided to contact means 91, 92 provided on both side plates 1.
A projecting slide means 91b, 92b shorter than the contact means 91, 92 is provided, for example, integrally in the inward direction via a. With this configuration, the ink ribbon cassette 4 alternately abuts against and abuts against the abutting means 91 and 92, thereby rotating the polygonal body 14 in the same constant direction B by a predetermined angle,
The ink ribbon 5 is fed by a predetermined amount via the crown gear 13, and the ink ribbon cassette 4 is then brought into contact with the projecting slide means 91b, 92b.
As shown in FIG. 5 (b), by moving and sliding inward by a predetermined amount d, the same effect as the configuration of FIG. 5 can be obtained.

The contact means 91 and 92 and the slide means 40, 91b and 92b can be variously modified in addition to the above-described structure, so that the ink ribbon feeding and the sliding of the ink ribbon cassette can be performed almost simultaneously. I just need.

[0018]

As described above, according to the present invention, the ink ribbon is fed in a predetermined direction by utilizing the contact between the side plate and the polygon of the ink ribbon cassette. For this reason, a special motor for feeding the ink ribbon and the like are unnecessary, and the ink ribbon can be fed in a certain direction by using the movement of the carriage to the left and right using a few components, with a simple configuration. The ink ribbon is small, lightweight, and can be fed at low cost, and is highly reliable. In addition, since the ink ribbon cassette abuts on the slide means, the relative position within the width of each color band of the ink ribbon is changed within the width of each color band, so that only the same line or spot is not hit. The life of the ribbon is greatly extended, and the size can be reduced. In other words, by simultaneously feeding and sliding the ink ribbon,
Long life can be realized at the same time, and an extremely excellent recorder can be obtained.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory view showing one embodiment of the present invention.

FIG. 2 is an explanatory diagram of a configuration of an ink ribbon cassette showing one embodiment of the present invention.

FIG. 3 is an explanatory diagram of a configuration of a polygon showing an embodiment of the present invention.

FIG. 4 is a structural explanatory view for explaining an operation showing an embodiment of the present invention.

FIG. 5 is an explanatory view showing the configuration of an embodiment of the present invention.

FIG. 6 is a configuration explanatory view showing one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side plate 2 Guide shaft 3 Carriage 4 Ink ribbon cassette 51, 52, 53 Ink ribbon 61, 62, 63 Spotting pin 7 Recording paper feed drum 8 Recording paper 91, 92 Contact means 10, 11 Roller 12 Gear 13 Crown gear 14 Polygon body 40, 91b, 92b slide means

Claims (2)

(57) [Claims] 1. An ink ribbon cassette for accommodating an endless ink ribbon provided on a carriage moving along a guide shaft provided between both side plates, and an odd number of ink ribbons provided on the ink ribbon cassette for feeding the ink ribbon . a feeding means having a multi <br/> prismatic body corners recording apparatus characterized by comprising a contact means for sending the ink ribbon by contact with the polygon disposed in the side plate. 2. A recording apparatus according to claim 1, further comprising a slide means provided on said side plate or said ink ribbon cassette to abut on each other to slide said ink ribbon cassette in a width direction.