JPH0625724U - Color dot recorder - Google Patents

Abstract

(57) [Abstract] [Purpose] It is intended to realize a color dot recorder that allows the ink ribbon cassette to be attached and detached with one hand while the internal unit is housed in the case. It is to realize a color dot recorder that can fix the swing angle of the cassette holder to a workable state when attaching and detaching the ink ribbon cassette. [Structure] Color dot recording is performed by swinging a cassette holder to and from which an ink ribbon cassette accommodating endless ink ribbons dyed in a plurality of colors in a width direction is attached and detached in a forward and backward direction along a recording paper feeding direction. In the color dot recorder, one of the ink ribbon cassette and the cassette holder is provided with a spring member for urging the ink ribbon cassette mounted in the cassette holder in an arbitrary horizontal direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a color dot recorder for performing spot color recording using color ink ribbons dyed in different colors. More specifically, the present invention relates to a cassette holder of an ink ribbon cassette that stores an endless ink ribbon. It is related to the improvement of attachment / detachment to / from.

[0002]

[Prior art]

 FIG. 3 is a schematic diagram showing the construction of such a conventional color recording apparatus, and FIG. 5 is a diagram showing the construction of the essential parts thereof. In these figures, 10 is a platen around which the recording paper 20 is wound, and is rotated at a predetermined speed by, for example, a step motor and a gear. A recording head 30 is reciprocated in a direction orthogonal to the feeding direction of the recording paper 20 by, for example, a step motor.

FIG. 4 is a structural explanatory view showing a main part of a concrete example of such a recording head 30. The recording head 30 is composed of a main body and a cover, but in FIG. 4 these are shown as a two-dot chain line as an integral unit formed by superposing them. In FIG. 4, a bearing 31 is provided near one end of the main body, a wire hammer 33 is vertically displaceably inserted into the bearing 31 via a coil spring 32, and a yoke 34 is disposed near the other end. A coil 35 and an armature 36 are stacked on the yoke 34 to form a magnetic circuit. A leaf spring 37 is attached to the inner surface of the cover and acts as a holding spring for the armature 36. The leaf spring 37 is attached so that its free end is substantially opposite to the end surface of the yoke 34 via the armature 36. There is. The armature 36 is fitted in a guide 38 formed in the middle of the inner surface of the cover so as to guide the armature 36 so as to be vertically displaceable, and one end presses the end of the wire hammer 33. The other end is pressed by the leaf spring 37 so as to face the yoke 34 and the coil 35. A protrusion 39 is provided on the inner surface of the cover in the vicinity of the leaf spring 37 so as to project from the free end of the leaf spring 37, and the protrusion 39 is provided near the end of the armature 36 on the leaf spring 37 side. The cover 40 is provided with a hole 40 to be fitted therein, and the cover is attached so as to be superposed on the main body with the leaf spring 37 and the armature 36 attached. As a result, the recording head 30 as shown in FIG. 4 is configured, and the armature 36 rotates around the contact portion with the yoke 34 and the leaf spring 37 depending on whether the coil 35 is excited or not. The wire hammer 33 is rotationally displaced, and the wire hammer 33 is selectively displaced in a substantially vertical direction. Reference numeral 41 is a guide shaft for guiding the recording head 30 in a direction orthogonal to the feeding direction of the recording paper 20.

Referring again to FIGS. 3 and 5, reference numeral 50 denotes an endless color ink ribbon dyed in a plurality of colors in the width direction, which moves in a certain direction while facing the effective recording width of the recording paper 20. It is stored in the ink ribbon cassette 51 as possible. The ink ribbon cassette 51 is attached to and detached from the front surface of the internal unit by a cassette holder 52 that is swingably attached to the upper part between the left and right side plates 61 and 62 on the front side of the internal unit via mounting shafts 63 and 64. It is possible to install. The cassette holder 52 is rotationally driven in the reciprocating direction by rotating the sector gear 65 with a motor (not shown). As a result, the ink ribbon 50 is swung along the feeding direction of the recording paper 20 with the mounting shafts 63 and 64 of the cassette holder 52 as the swing center. Further, an ink ribbon winding mechanism 53 for winding the color ink ribbon 50 is attached to the back surface of the cassette holder 52. Reference numeral 66 denotes a scale, which is attached to the upper part between the side plates 61 and 62 on the front surface of the recorder inner unit through mounting shafts 67 and 68 so as to be rotatable upward from a position facing the front surface of the cassette holder 52. There is. Reference numeral 69 denotes a pointer, which is attached to the front surface of the carriage 30 so as to be rotatable downward from a position directly facing the scale 65.

The recording operation of the apparatus thus configured will be described. First, when the power is turned on, the recording head 30 temporarily moves to the 0% side (to the left), and drives a reference position signal generating means (not shown) including, for example, a lever and a photo sensor to drive the reference position. Generates a signal and stops at the reference position. On the other hand, the cassette holder 52 also rotates to the reference position and drives the similar reference position signal generating means (not shown) to generate the reference position signal and stop at the reference position. As a result, the recording head 30 and the ink ribbon 50 are initialized.

Next, the cassette holder 52 is rotationally driven from the reference position by a predetermined angle so that the color band of the first channel of the ink ribbon 50 faces the wire hammer 51. After the cassette holder 52 is rotationally driven by a predetermined angle from the reference position in this manner, the recording head 30 is moved from the reference position (0%) toward the 100% side at a constant speed. Then, when the recording head 30 reaches the recording position of the first channel during the movement, the recording head 30 stops, and the coil 35 is selectively excited to perform the dot recording operation by the wire hammer 33. As a result, the magnitude of the measurement signal of the first channel is dot-recorded on the recording paper 30 in the predetermined color assigned to the first channel. When the dot recording is completed, the recording head 30 moves to the 100% position and stops. With the recording head 30 stopped at the 100% position, the cassette holder 52 is rotationally driven from the position of the first channel by a predetermined angle so that the color band of the second channel of the ink ribbon 50 faces the wire hammer 33. After the cassette holder 52 is rotationally driven from the position of the first channel by a predetermined angle in this way, the recording head 30 is moved from the 100% position to the 0% side at a constant speed. Then, when the recording head 30 reaches the recording position of the second channel while moving, the recording head 30 stops, and the coil 35 is selectively excited to perform the dot recording operation by the wire hammer 33. As a result, the magnitude of the measurement signal of the second channel is dot-recorded on the recording paper 20 with the predetermined color assigned to the second channel. When the dot recording is completed, the recording head 30 moves to the 0% position and stops. Thereafter, the same operation is repeated by the number of color bands of the ink ribbon 50, and the magnitudes of the measurement signals of a plurality of channels are recorded in an analog manner by the dot pattern of a predetermined color assigned to each channel.

[0007]

By the way, in such a color dot recorder, the ink ribbon cassette 51 is attached / detached to / from the cassette holder 52 by pulling out the inner unit from the case (not shown), and then moving the pointer from the state shown in FIG. 69 is rotated downward and the scale 66 is rotated upward so that the front surface of the recorder internal unit is largely opened. FIG. 6 is a diagram for explaining attachment / detachment of a conventional ink ribbon cassette. An L-shaped bent side 70 is formed on the upper portion of the cassette holder 52, and an L-shaped bent side 70 is formed on the lower side so as to face the bent side 70, and a bent protrusion for preventing coming out near the end. A bent side 72 having a spring property is formed on which 71 is formed. 73 is a winding shaft. The space between the side surfaces of the cassette holder 52 is set so that the ink ribbon cassettes 51 are closely fitted to each other in a directly facing positional relationship. The ink ribbon cassette 51 is fitted directly between the bending sides 70 and 72 of the cassette holder 52 by pressing down the bending side 72 at the lower side of the ink ribbon cassette 51 in a state of directly facing the cassette holder 52 so that the ink ribbon cassette 51 can get over the bending protrusion 71. To do.

[0008]

[Problems to be solved by the device]

 However, in such a conventional configuration, there is a problem in that the ink ribbon cassette 51 cannot be mounted properly because it is lost by the spring force of the bent side 72 unless the ink ribbon cassette 51 is mounted so as to face the cassette holder 52. Further, since the ink ribbon cassette 51 is structured to be supported by the spring force of the bent side 72, it will be stopped in the middle unless it is pushed in strongly. Further, in order to stably support the ink ribbon cassette 51, the width of the bent side 72 must be widened, and it is difficult to attach / detach the ink ribbon cassette 51 with one hand. For these reasons, the ink ribbon cassette 51 must be attached and detached with both hands while pulling out the inner unit from the case and visually checking the state, which results in poor operability. The present invention focuses on such a problem, and its purpose is to realize a color dot recorder in which the ink ribbon cassette can be attached and detached with one hand while the inner unit is housed in the case. is there.

[0009]

[Means for Solving the Problems]

 The present invention that achieves such an object has a carriage that has one wire hammer that performs a spotting operation and that is arranged so as to be movable along the width direction of the recording paper, and an endless type that is dyed in multiple colors in the width direction. The ink ribbon was stored in a state that the ink ribbon was stretched so as to face the effective recording width of the recording paper, and it was rotatably attached and stretched between the side plates on the front of the recorder internal unit. A cassette holder to which an ink ribbon cassette is detachably attached so that the ink ribbon is located between the wire hammer and the recording paper, and a swinging mechanism that swings the cassette holder in the front-back direction along the recording paper feeding direction. A color dot recorder equipped with the ink ribbon attached to the cassette holder in one of the ink ribbon cassette and the cassette holder. It is characterized in that a spring member for urging the cassette in an arbitrary horizontal direction is provided.

[0010]

[Action]

 When attaching or detaching the ink ribbon cassette, one end of the ink ribbon cassette is pressed against one end inside the cassette holder so as to oppose the biasing force of the spring member. As a result, there is a sufficient gap between the cassette holder and the other end of the ink ribbon cassette to attach and detach the ink ribbon cassette, and the ink ribbon cassette can be easily attached and detached to and from the cassette holder with one hand. Further, by devising the shape of the spring member, it is possible to generate a click sound when the ink ribbon cassette is correctly mounted in the cassette holder and confirm the mounting state by sound.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram for explaining the construction of an embodiment of the present invention, and FIG. 2 is a diagram for explaining attachment / detachment of an ink ribbon cassette. The same parts as those in FIG. 6 are designated by the same reference numerals. In the figure, reference numeral 80 is a cassette holder. An L-shaped bent side 81 is formed on the upper part of the cassette holder 80, and an L-shaped bent side 82 is formed on the lower part so as to face the bent side 81. 83 is a winding shaft. The distance between the side surfaces of the cassette holder 80 is set to be slightly wider than the lateral width of the ink ribbon cassette 51. The cassette holder 80 is provided on one side with a spring member 84 that is bent into an L shape so as to hold one end of the ink ribbon cassette 51, and on the other side with an end portion to hold the other end of the ink ribbon cassette 51. A spring member 85 is provided, the vicinity of which is bent into a chevron shape.

In such a configuration, when the ink ribbon cassette 51 is attached to the cassette holder 80, one end of the ink ribbon cassette 51 is fitted to the spring member 84, and a fitting portion of the ink ribbon cassette 51 and the spring member 84 is formed. By rotating the ink ribbon cassette 51 toward the cassette holder 80 with the rotation fulcrum as the fulcrum, the other end of the ink ribbon cassette 51 is passed over the mountain-shaped bent portion of the spring member 85. After the other end of the ink ribbon cassette 51 has passed over the mountain-shaped bent portion of the spring member 85, it is automatically pushed into a predetermined position by the restoring force of the spring member 85. As a result, the upper and lower surfaces of the ink ribbon cassette 51 are held by the upper and lower bent sides 81, 82 of the cassette holder 80, and the left and right side surfaces thereof are held by the spring members 84, 85 on the left and right side surfaces of the cassette holder 80. The take-up shaft 83 of the ink ribbon cassette 51 is engaged with the take-up shaft 83, so that the take-up shaft 83 is stably held without being loosened.

On the other hand, when removing the ink ribbon cassette 51 from the cassette holder 80, the ink ribbon cassette 51 and the spring member 84 are pressed against the spring member 84 against the biasing force of the spring member 84. The ink ribbon cassette 51 is rotated toward the front with the fitting portion as a rotation fulcrum. As a result, the other end of the ink ribbon cassette 51 and the mountain-shaped bent portion of the spring member 85 are released from each other, and the ink ribbon cassette 51 can be removed from the cassette holder 80.

According to such a configuration, when attaching and detaching the ink ribbon cassette 51, it is possible to perform easily and surely with one hand without pulling out the inner unit from the case unlike the conventional case. Then, at the time of mounting, it is possible to generate a click sound according to the strength of the spring force of the spring member 85, and it is possible to audibly confirm that the ink ribbon cassette 51 is correctly mounted at a predetermined position of the cassette holder 80. .

In the above embodiment, since the spring members 84 and 85 are provided on both side surfaces of the cassette holder 80, it is not necessary to change the form of the ink ribbon cassette 51, but the form of the ink ribbon cassette can be changed. In this case, the same effect can be obtained by providing a spring member on the side surface of the ink ribbon cassette.

[0016]

[Effect of device]

 As described above, according to the present invention, it is possible to realize a color dot recorder in which the ink ribbon cassette can be attached and detached with one hand while the inner unit is housed in the case.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of an embodiment of the present invention.

FIG. 2 is an operation explanatory diagram of FIG.

FIG. 3 is a schematic configuration diagram of a conventional color dot recorder.

FIG. 4 is a configuration explanatory view showing a main part of a specific example of the recording head used in FIGS. 3 and 5;

5 is an explanatory diagram of a configuration of a main part of FIG.

FIG. 6 is a diagram for explaining attachment / detachment of a conventional ink ribbon cassette.

[Explanation of symbols]

 50 Ink Ribbon 51 Ink Ribbon Cassette 80 Cassette Holder 81, 82 Bending Side 83, 84 Spring Member

Claims (1)

[Scope of utility model registration request] 1. A carriage having one wire hammer for performing a dot-stripping operation and movably arranged along the width direction of the recording paper, and an endless ink ribbon dyed in a plurality of colors in the width direction An ink ribbon cassette stored in a stretched state so as to face the effective recording width,
A cassette holder to which an ink ribbon cassette is detachably attached so that the ink ribbon that is rotatably attached to the upper part between the side plates on the front of the recorder internal unit is located between the wire hammer and the recording paper, and this cassette holder In a color dot recorder equipped with a swinging mechanism for swinging the paper in the front-back direction along the feeding direction of the recording paper, the ink ribbon cassette mounted in the cassette holder is horizontally attached to either the ink ribbon cassette or the cassette holder. A color dot recorder characterized in that a spring member for urging in any direction is provided.