JPS58145472A - Serial printer - Google Patents

Abstract

PURPOSE:To obtain a small-size serial printer capable of two-color printing with almost same speeds if digit number and printing content are the same even when the first color print is made or the second color print is made. CONSTITUTION:A holder 4 to hold type 3B for the first color printing and type 3R for the second color printing is rotationally driven on a shaft 5 and also slided along the shaft. An action locus-determining means for the pressing part 7a of a hammer 7 to press the type 3 on a paper is carried by a carriage 8 movable in the direction of the shaft 5 independently from the holder 4, and the carriage 7 is moved toward the shaft 5 by carrying means 12, 13, 13a, 14 and 14a. The selection of the first color printing and the second color printing is made by a relative position control means consisting of a biasting means 25 to energize the holder 4 in the opposite direction of the carrying direction and a relative position determining means P for the action locus of the hammer 7 and the types.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a small type serial printer capable of printing in multiple colors.

Conventionally, for serial printers that can print in two colors,
Large so-called daisy: There are printers, badminton printers, golf ball printers, etc. that use two-color ribbons, and small-sized devices such as those used in calculators.''
cFi, only the types briefly explained below exist. An example of this is Japanese Patent Application Laid-open No. 56-28885.
In the more advanced serial printer type proposed in It prints while moving like a sidewalk, and when in standby mode, the type wheel for 141 colors out of the 2 m type wheels is placed in the lowest digit 111, and the type wheel for m2 colors is placed on the strictest digit side. position, and when printing the first color, the first color type wheel moves up in order from the lowest digit, and no printing occurs.n1 When printing the second color, the second color type wheel moves up. There is no printing even though the digit is lowered from the lower digit to the next lower digit.

If a printer is normally used with a calculator, etc., the calculator't'
In most cases, the number of digits to be handled is η less than the maximum possible number of digits, so if you use the above-mentioned method, %l! In the case of one-color printing, since printing starts from the lower VI (waiting position III), the type wheel can return to the waiting position as soon as the necessary printing is completed, so there is no problem in terms of printing speed. ! @In the case of two-color printing, it is necessary to print blanks for a certain number of digits from the high-order digits, and then print the necessary numerical values to the lowest digits! Because of this, the printing wheel had to be moved by all the digits of am at all times, which had the disadvantage that the printing speed was slow to a trickle. Therefore, the mental irritation caused to users of such printer-equipped calculators during operation was also a major drawback. Also, with this Hinoki printer, multicolor printing on IR3R3 was not possible at all.

The present invention has been made in view of the above-mentioned shortcomings.The purpose of the invention is to provide the same number of digits and the same printed content for iR1 color printing and 2nd color printing. The object of the present invention is to provide a novel structure of a serial printer capable of printing two-color type and capable of high printing speed.

Another object of the invention is to provide a structure of a serial printer that can print symbols in a different color.

Another object of the invention is to provide a serial printer with any type of printing color.

Hereinafter, the uninvented IF3 valley will be explained in detail along with examples.

The first one is a 51i serial printer according to the present invention.
! It is a plan sectional view showing an example, and is a diagram omitting a section Fj1 that is unnecessary for explaining the content of the invention in an easy-to-understand manner.

Reference numeral 1 denotes a platen, 2Fi printing paper, which is not shown, but is fed and guided along the platen 1 by rubber or the like by a paper feed roller and other necessary paper components to the III side of the type ring 3. As shown in the cross-sectional view around the type in Figure sR2, the type ring 3 holds 141 types of type (5T (13B15B)) on a cylinder, and has type 4 sub5 on the radially inside of the type with a π ring.
A is carried and wrapped around the holder @4 of the type ring.

To explain in detail, the holding f11@4 has an approximately 701-socket shape, as can be easily inferred from Figs. Rib 4a (14 ratio) and circumferential rib 4c I4d and 4
・Enclosed by flange 4b is n7 (a square shaped hole (42
11v), and insert the type ji ill 5 into this hole.
A is in the shape of a cradled egg and a nose, and the type ring 3 is held. Holding part @4Fi'l! There is a boss part 4f at the center of the hole corner, and the boss part 4f is a cylindrical circle. The guide shaft 5 has a cross-sectional shape that looks like a flat cut surface;
5IiliJK is slidably fitted in the m direction of the circle so that it moves integrally with the guide shaft, and the post fi1
4F's left skin (Fig. 1) is compressed by a coil spring (Fig. 1).
The seat 19 of the compression coil spring 6 rotates integrally with the guide shaft 5. 67 is a hammer, and one end (pressing force) 7a pushes the type base 3a onto the platen III. By extruding and pressing the printing paper 2 and type 3R13B or 3 as shown by the double-dot chain, the ink on the type side is transferred to the double printing paper 2.
Ru. Means for supplying ink to the printing surface As shown in II'1w48 (9) (detailed explanation will be given later), this is a NYC ink roll 50 arranged so that the printing surface is constantly in contact with the printing surface. 7j@8a (the movement locus of the pressing part 7a is determined) The leg means part of the tgI movably held n1 arm abrj.

In drawing W41, the hammer 7 receives a driving force from the arm end 9a of the hammer drive lever 9 so as to rotate in the counterclockwise direction.

The hammer driving lever 9 is movably held on a shaft 8bK (b) set up on the carriage 8, and one end is fixed to the hammer sliding lever 9, and the other end is connected to the hammer driving cam 10. It carries a helical torsion coil spring 11 that becomes a follower of the bowl-shaped cam surface 10a. ...Nmaa Body Work Cam 10
is the end face 8cj of the hole opened in the carriage 8 in the axial direction of the guide shaft 5? 1n and 8d are disposed parallel to the guide shaft 5. For example, the drive 1121 shaft 12 whose cross-sectional shape is almost similar to the guide shaft 5 has its rotational force K slidable in the axial direction. It is being installed en masse.

That is, when the drive shaft rotates in the counterclockwise direction when viewed in the direction of arrow B for the printing operation, the hammer body cam 10 also rotates at the same time, and the follower portion of the spring coil spring 11 immediately rotates at the same time. moves approximately in the direction of arrow B, and the hammer lever 9 moves #WI 70,000 times (GLFA arm end 9a
pushes the leg 8b of the hammer 7 almost in the direction of the arrow, the hammer 7 rotates in the counterclockwise direction, and the -gs7 tortoise of the hammer 7 pushes the type base @ 3a onto the platen 111, resulting in no printing.
Next, the peak of the bowl-shaped cam surface 10& is passed and the follower part of the torsion coil spring 11 moves in the opposite direction of arrow B (hammer lever g row s>τc, hammer proboscis lever 9 and hammer 7
Fi moves in the opposite direction to the above explanation, but in order to speed up the return operation of hammer 7, the - tail is hooked on hammer 7 and the other end of n1 is hooked on carriage 8. The force is borrowed from the tension coil spring 2o.

The printer according to the present invention is a serial printer in which the lower digit III (shown on the right in FIG. 1) must be progressively incremented in the direction of arrow B without printing. Therefore, the following method is used to carry the carriage 8. That is, the ends of the n7m holes provided in the carriage 8 are fitted into the drive shaft 12 slidably in the axial direction and integrally in the (b) rotation direction. A carry cam 1 having a cylindrical shape and carrying a protruding strip 15a having a lead on its ji1 surface.
In the carry-up stroke, the lobes 15a of No. 3 are positioned close to each other so as to be able to engage with the strips 15a, and are arranged in the axial direction of the drive shaft 12 at the pitch of the foot. The carry cam 13, that is, the carriage 8, is integrally carried up by a pitch of 111A of the teeth 14a each time the drive shaft 12 meshes with the disposed teeth 14a. As is clear from the above explanation, since the hammer drive cam 1o and the carry cam 13 rotate integrally with the drive shaft 12, the printing and carry cam 13 are rotated in one rotation of the drive shaft 12. 11g 1 turn corner to complete the injury!
f5600 is divided into two parts for printing/) During the period when the marker 7 is moving, the strip 13a of the digit avoidance cam 13 does not produce a lead (the carriage 8 is powered in the direction of the axial force of the drive WIJ 12). φ), and after the printing operation is completed, 7 is finished dyeing 15
The part that causes the lead of a is l! 1l114a The cam phase is completely locked as there is no carry when it meshes with a. In addition, in order to return the carriage 8 to the standby position * after printing is completed with a digit shift rL at an arbitrary M'f, the positioning horizontal 14 (that is, the tooth 14a) must be
Forcibly separate from. At this time, a tension coil spring 21 is stretched between a part of the carriage 8 and an immovable part such as the frame 15 as means for applying a return force to the carriage 8.

Next, the horizontal printing that enables two-color printing, which is the main objective of the present invention, will be explained. Unexplained examples are those used in calculators, etc.
For serial printers, lower digits (right II on paper 2)
), and Figure 1 shows the carriage 8 and type wheel 3 being pressed to the standby position - (right end) by the compression coil spring 6 and the tension coil spring 21, respectively. be. Holding part @ 4's 7 lunge 4b and frame 1
Between 5 and 5, the end surface ISk is in contact with the carriage stopper 18, and the n'fcg material P1 is fitted into the guide JI1115 so that it can slide in its axial direction and rotatably also in its (b) rotation direction.
6, and is slidable in the axial direction on the guide shaft 5, and by a thin coil spring 25 (acting as a deflector) whose one end is seated on a part 22 of the guide @5, the rotation direction of the The carriage stopper 1 is fitted into the frame 154C so as to rotate integrally with the guide shaft 5, and the carriage stopper 1 comes into contact with the frame 154C and the carriage part 8g-1.
8 and part @P16 is bearing on the outer 8 surface of part @R( ) Part of Rika means) 23
exists. On the opposing sides 1i116b and 17b of fR1@P16 and part @9.17, there are at least a pair of screws that can be engaged with each other in the direction of rotational force when ili@P16 and member Q17 rotate around the guide shaft 5. Teeth 16c and 17c are present.

For a better understanding of the shapes of fl material P16 and portion @R23, r6 will be explained without referring to the perspective view of @@P16 and flA@R2H shown in FIG. The member P16 is a part that is approximately symmetrical with respect to the center line of the approximately cylindrical τ round hole 16 (i) having a round hole 16d into which the guide shaft 5 is fitted, and has a circular hole 16d in the center.
Inner circumferential surface 16j bearing inner circumferential surface 23c of lK part @R2s
and a circle Ii facing the part 8g-1 of the carriage 8!
6 surface 16e and two stepped surface-shaped portions 14f*14 that are perpendicular to the l1111 direction of the guide 41+5 and abut and engage with the side surface 8g-2 of the carriage portion 8g-1 in a certain operating state.
g, and has a surface 14h perpendicular to the surface of the portion 14f and a step surface 161 at one end of the i1 position 1.6f. It was Km early, but f1
6@P inner cylinder inner guide shaft 5KIi straight toric surface 14
A butterfly triangular tooth @ 16 c is planted on the tl, and it can be stopped in the rotational direction with this tooth and a roughly triangular tooth 17 c planted on the end surface 171) of II5 @ Q17. It is.

VIA@R25B, as shown in 5th tjtJ, is a substantially cylindrical part, and as explained earlier, the outer peripheral surface 16 of member P16
The cylindrical inner circumferential surface 25c, which is supported by the cylinder j, and the cylindrical outer surface 23 (
1, a notch 25s provided in the cylinder wall, a step surface 2Sf provided at the end of the notch 25e on the end surface 25b side of the cylinder, and a step surface 2Sf provided at one end of the step ItI25f parallel to the axial direction. The cylinder 25f-1 has a cylindrical protrusion 23g f'L7 provided on the outer circumferential surface 245 (1) of the cylinder.

Now, in the A1 diagram, there are five type wheels 5, and the thick type wheel S for type 3 is basically the symbol type wheel 5-is for printing the type of numerical value of the printed 2'' line. It is usually printed on the first line. Type wheel 5 with type 3B on it.
is basically Numeral type for printing numerical values-5
-5B is applied with WA1 color ink and used for n%w41 color printing. The type wheel 3 on which the type 3R is placed is basically a neweral type wheel 5-5R"t" for printing numerical values.A second color ink is applied to the n, t14 2-color printing IL.
Ru.

Figure 1111 shows a state in which any one of the 14 typefaces can be selectively printed on the first line, and the drive shaft 12 is rotating and the guide shaft 5 is moving (2) mm not shown. # (motor, gear train, etc.) rotates clockwise when viewed in the direction of arrow B. At this time, the guide shaft 5, the part @Q17 and the holding member 4 are rotated together, and the part @R23 is the holding member 4.
Although there is a possibility that the rotational force is initially received by the friction with the end surface 25a, the wall 25
f-1 is locked and stops rotating from the point jLk. However, the member P14 supports @@R25 and the end face 1
6k is in friction with the carriage stopper 18, a brake is applied to the rotation due to the frictional force received from the guide shaft 5 or the holding N@4, and finally [@IAc is pushed by Fi-t7a (llll@P1 ! and Il! @Q1
7 becomes (b) engaged in the rotation direction), and this state continues from then on until the point described below.

Also, at the time of jin, the pressure @7a of the roar/sunmer 7 is opposite the symbol type wheel 3-38. As explained before, 41! I#Il@4, that is, the type wheel 5 is the guide I
Since it is turned integrally with I5, the type from the type wheel 3 (
A detector 24 (1111
Fj! J, 24-1 is a disc fixed to the guide shaft 5,
The fixed n-th detection brush Ha-2, 24-5KII carries a rt* electrical conductor 24-4. The detection brush 24 2e24 & is pressed against the disk 24-III by a spring. Electric conductor 24-
4゜24-sFi always pass through and remove, detection brush 24-
At the radial position on the disk 24-1 where the electrical conductor 2 is in contact with the electrical conductor 2
a-all is completely continuous in 8 directions, and the detection brush 2
At the radial position on the contact circle @ 24-1 of 4-2, the electrical conductor 24-5 is 360 @ a of the type on one type wheel 3.
It comes into contact with the detection brush 24-2 discontinuously at every equally divided angle (1j14 pieces in this example). That is, the detection brush 24-1 is rotated by the rotation of the circle 1124-1.
e24-5 Character position 1 between each terminal 24-6 and 24-7
1, a 1'e conduction signal (character position shield detection signal) is obtained. Although not shown, an electromagnet or the like is excited to activate the stop means (character selection means) of the guide shaft 5 in response to a signal from the guide shaft 5, that is, the type wheel 5, and the rotation of the guide shaft 5, that is, the type wheel 5 is stopped and held ( At the same time as character selection), the mechanism that stops and holds the rotation of the drive shaft 12 is released, and the drive shaft 12 is rotated once in the counterclockwise direction as seen by arrow B7j. In the process of this one rotation, the desired characters (symbols) of the type wheels 5'-5R± are printed on the printing substrate Ja2 as described above.
jL There is no digit shift by one digit. At the same time as the carry is completed, the rotation of the drive shaft 12 is stopped and maintained, the stopped state of the guide shaft 5 is released, and the n1 type wheel 3 begins to rotate, and character selection becomes possible again.

Figure 4 shows this state, and the parts that are unsatisfactory due to lack of explanation are *tB! This is omitted for J. In this state, the strip 13JL of the carry cam 13 is connected to the positioning plate 14.
It meshes with 11114a-1 of the upper teeth taa.

The amount of carry of the carriage 8, that is, the hammer 7, from the first digit to the second digit is adjusted by the position of the tooth 14m-1.

In this carry process, part 8 g-I of carriage 8
Fi, step surface 2 of iIl shaved R25 at its end surface 8g-2
Press 5f to move up the digit. Therefore, the amount of movement of S@R2S, that is, the type wheel 3 in the direction of arrow B, is almost the same as the amount of movement of the carriage 8, that is, the 7% mark 7 (the difference is llill
(The only difference is that the distance between the step surface 23f and the end surface 8g-2 in the standby state shown in the figure is smaller than the minute distance.) Therefore, the type ring 5-58 and the suppressing portion 7a of the hammer 7 extend up to the opposing platforms. In this process, the engagement between 11116C and 170 is caused by bll@Qtz being biased toward member P16fa by compression coil spring 25.
There's no way it's continuing.

Therefore, in this second digit, select the desired character and print it.
Carry to the third digit is possible.

When the carry is carried to the fifth digit, it is confirmed that the strip 13a of the carry cam 1s is engaged with the teeth 14a-2 of the positioning plate 14, and that the suppression IB7m of the hammer 7 and the type wheel 5-38 are in contact with each other. Carriage 8, i11@P1+6, part@Q except that the same positional relationship is exactly the same as the previous Vl (2nd digit)
17, The relative positional relationship of part @R25, holding part @4 and type wheel 3 is exactly the same as the second digit (m4 garden shape 11M1) τ
be.

The printing color in subsequent digits is determined by the selection of the character position in the third digit. That mechanism is the main content of the present invention. The contents are as described below.

jR3 As shown in FIG.
When 4-1 rotates, the printing position 111 on the p printing wheel 5 changes.
1 character position detection signal 44T n (n w 1
~14) is obtained, but the projections of part 6f and part 14g of part @P16 onto the virtual plane TP on which this Tn is plotted are 14f-T, respectively.

This is the region n indicated by 16g-T.

First, IR one-color printing will be explained.

Now character alignment detection @ 13 T n, projection 16f-T
flaws 44 (hereinafter referred to as B signal) that sufficiently include machine tolerances in 〒5. If you select the character corresponding to 〒6 (
(hereinafter referred to as the case of BJI selection), the selected character is 5
When printing in the digit, there is no shift to the 4th digit, but during the carry process, the projection of the part 8g-1 of the carriage 8 onto the part 16f of the arrow B7j to the same direction is the 1st turn of the part @P16. It is completely included in terms of direction. Two longings 8g-1 and 14
fij opposite.

On the other hand, when moving from the third digit to the fourth digit, frame 1
The protrusion @25g on the member R25 is aligned with the cam surface 26 provided in #A on the #5 etc., and the protrusion @25g on the member R25 is forced to turn S@1 (25 completely, that is, as shown by the arrow C in the #5 grout). When part @R23 is rotated by an amount determined by the cam surface 26 in the opposite direction 111i in the direction of arrow B, part 8g-1 of the carriage 8 is relatively moved within the same width of the circle w!J7j of the notch 23. When moving to this state, part @R
2S, WA@P14 and the holding member 4 are integrally biased toward the lower digit by the compression coil spring (biasing means) 6, so that the part 8g-1 of the carriage 8 and the part @P
8g-1 at the notch 25 until the part 16f of 16 comes into contact.
ill@P16, part @R25, and hold m@4 are moved to the lower digits in such a way that they are sandwiched.

At this time, the roaring portions i1Q, 17 are also pushed back to the lower digits.

The spring force of the compression coil spring 25 is set to be smaller than the spring force of the compression coil spring 6.

FIG. 5 shows the state immediately after the carry is carried to the fourth digit through the above process. At this time, the suppressing portion 7a of the hammer 7 is for the first printing, and in the case of a calculator, the first printing type ring 3-3 is used for printing the numerical value ff1 information.
It is completely opposite to B.

The position of the portion 16f is stretched so that it becomes like this.

To select the 4th digit character, from the state shown in Figure 5, move the guide shaft 5,
ll material Q17, @@P14, 14 shaved R25 and holding F
l@4 starts to turn around, but the @@R25Fi notch 23 is holding part 8g-1 of the carriage 8, and iB@P
16Fi comes in contact with 1fit6h or 8g-1 and is locked, so @@114 and 814; rotation of 123 is stopped. At this time, -16c and -17c are in a cohesive state, but in this type of 1lIIFi overloaded mackerel, the cohesion is broken (for example, the pentagonal shape described in this explanation or the Fi-like shape). Since the spring force of the compression coil spring 6 is strong, the compression coil spring 25 is bent, and as a result, Ml@Qsy escapes from the lower digits. Therefore, the pressing force m7a of the hammer 7 and the type wheel 3-3
Btj remains facing each other, so I understood that any character can be selectively printed in the 4th digit.1! Good morning. The theory so far @ Yoshi Roaring #I also presses 1117a and the type ring 5 after the 5th digit
The axial relative position 11 of -5B remains unchanged, and any character on the type wheel 5-5B can be selectively printed by moving the platform girder aside.
, therefore, the first printing is possible from the fourth digit onwards. In the basic circle, it is preferable that the engagement between 1jllll16a and tooth t7c after the fourth digit is avoided, and attention is paid to the spring force on the free length of the biasing means 25.

Next, IR two-color printing will be explained. As shown in the IR5 diagram, the characters corresponding to Tl and T2 (hereinafter referred to as R11) are fully included including the tolerance of the projection 16g-TK machine of the character position detection flaw-j)Tn. When selected (hereinafter referred to as the case of R selection), the selected rtz character is printed in the third digit and carried to the fourth digit, but in this case, a part of the carriage 8 ag-1U8i1JIAp1
6 no fi 15th t 6g to rilt, so at the time when carriage 8 has a digit R7 in the 4th digit, @, Hp
t6.5A @ R2S, the holding W & material 4 are integrally moved toward the lower digit until the part 16g of the part 8g-1 of the carriage 8 comes into contact with the direction 8g-2 @ At this time, of course, the member Q17 is also pushed back to the lower digit side.

This state was shown! This is an IN6 diagram. At this time, K is placed on the pressing part 7a of the hammer 7, completely facing the type ring 3-3R for M2-color printing, which is mainly used for printing numerical information in the case of a calculator. There is. The position of the part 16g is set so that it becomes like this. Therefore, even if you select and print any character on the type wheel 3-5R at the 4th digit and carry up from the 5th digit onwards, the type wheel 3-3R is pressed against the relative position of the axial force of the pressing part a* is unchanged, 4II! After the first stitch, 1R two-color printing is possible.

In the explanation so far, we have assumed that the W43 digit is printed, but in reality only a certain group of characters can be selected for B selection and R selection, so these Bjl selections are used to make the printing easier to see. The character group for the case (character group B) and the character group for the case of RjlN (character group R) each include at least one character (printable character) that can be printed blank, and these are placed in the third digit. It is preferable to select with , and then select B or R.

In addition, in the explanation so far, in the process of carrying from the third digit to the fourth digit, after the carry has been carried out, the press of I.
117a and the type wheel 5-5B or 5-3R are held so that they face each other. *s@4 is pivoted by part @P16 as a means for applying a strong force to move it toward the lower digit. Although the description has been made using the combination of the partially rotatable part @R25 and the cam surface 260 fixedly provided on the frame etc. (see Fig. 5), as another embodiment,
There is also a method as shown in Figure 7. This is B in Figure 1.
The new system is partially modified by omitting the mechanism for selection or R selection.

The difference is that instead of 811@R25, it can be inserted into the gap between the step surface 161 of @@P16 and the end surface 8g-2 of the part 8g-1 of the carriage 8 in the waiting state Ca11 (same as the state shown in FIG. 216. Although not shown, the mechanism for inserting and removing the lever 26 itself into the above-mentioned gap is provided on the carriage 8.
The system is, for example, a π-th II@ kite in which the lever 260 has a pivot means to provide the center of rotation of the lever 260, and the lever 26 does not involuntarily move in the same direction as the arrow B7j or in the opposite direction to the arrow B.

As shown in Figure WA7, the lever 26 is at the step 11116J and the end i.
ji18g-2 Insert into the cabinet rt*The cabinet is carried up.
The facing relationship of B is kept unchanged. However, the first II!
As shown in the example, the lever 26 is forcibly removed by a cam fixed to the frame etc. while the carriage 8 is being moved from the third digit to the fourth digit. As a result, as in the explanation of the first embodiment, KB
Carriage 8 and holding s@ for jl selection or R selection
4 relative axial movements can be triggered.

Depending on the case, this lever 26 may be constantly
It is preferable that the biasing means be biased so as to be inserted into the gap between the end face 6j and the end face 8g-2. In that case, as can be easily inferred, after the BJI selection or the R selection is made, the lever 26 is applied to the biasing means by 16 g.
@pt6 outer surface 16 jJ: ″e will be locked and held H・ 17tjljD[Qll”, @@P16 soil + 2) lil
Although tAo and 1i117e of MA@Q1y soil are used as a pair, for example, two pairs may be used. When the two pairs fell down, they were separated by 80 degrees, that is, when they were dispensed in symmetrical positions, the carriage 8, holding part @ 4, etc. returned to the standby position (the state shown in Figure 1) after printing one line. In case K, @ 16 o and tooth 17c mesh, there are two cases in which the rotary blade in-phase relationship of Mai's part @ P16 and llI @ Q17 differs in phase by 180 degrees. Part 8g-14 of carriage 8, i1 position 14f and 16g are also guide shaft 50.
If a pair of pipes of the same shape are installed at symmetrical positions with respect to the axis Kt1, the time 111k<B selection and R selection will be obtained.

This is the character position detection flaw that allows you to select B and R at the 5th digit! Since Tn arrives early, one line of printing Ki
The time required for t' is short. Furthermore, it goes without saying that the number of pairs described above may be five or more.

'17? ,, As explained above, the cam 1126, which is fixedly provided on the frame, which plays a role as a means of triggering B selection or Roll selection, is not triggered between the 3rd and 4th digits. It may not be provided in the nb machine, but may be provided between other digits. The difference is that if the letters of type wheel 5-5B are set so that the cam surface 2.6 is connected to the second and third digits and the trigger is made, then only the first digit will be 26 is set so that the trigger between the 4th and 5th digits is not activated.
, it becomes possible to print on the 2nd+5th digit. In other words, it is possible to selectively control printing in one IR color or in W42 colors for a higher-order digit than an arbitrary digit.

In addition, in the above explanation, one of the types in one type ring 3
11 has been assumed to be 14, but it is not limited to n.Although we have explained using the example of symbol type wheel 3-58 being 111A, even if there are two or more, the symbol on the most significant digit side Since the above explanation can still be applied after the type wheel, the present invention is not limited to the symbol type wheel 5-381.

Ma-fc1 In this embodiment, the portion 16f for B selection.

A portion 14g for R11liP is provided on @@P16, but a portion for IK, for example, W43 color HLSA color is provided, and a type wheel 3 for a third color, W44 color stamp, and inking means are provided. Therefore, it is possible to realize a typeface multicolor printer with an arbitrary number of printing colors.

Next, the one ink supply means will be explained. Figure 8 shows only the part related to ink mooring 15N! FIG. 3 is a plan cross-sectional view of the example. 3o is a cylindrical ink roll made of foam-like material impregnated with ink, and is provided on the vertical wall of the carriage 8, consisting of an ink roll 50B for the first color and an ink roll 30R for the second color. The ink roll shaft 29 is fitted loosely into the holes or notches 8h and 61, and the separator 29L, which is integrally provided with the n150B and 3ORH ink roll shafts 29, is inserted into the ink roll shaft 29.
So the elements are arranged. 28 is an ink roll cover that is pivotally supported on the ink roll shaft 29, which holds the ink roll 50 between Mzacs 28d and its arm end 28a and ZSB6cz.
1 flange 4b and circumferential lip 4.
I'm holding it in between. Although not shown in the figure, in this state, the ink roll cover 28 is pushed in the direction of the arrow by a biasing means such as a spring.
It is pressed against the earth, and the ink spills onto the type. Arm 31111128 a m28m)"C holding part @4tN
Carriage 8 and holding w6@40 guide shaft 5
Even if there is a relative movement in the axial direction (for example, even if the key ?+3 Tsuji 8 works relative to each other as shown by the two-dot chain line), the above-mentioned relative position g1 of the ink roll 30 and the type wheel in the -tooth direction remains unchanged. t, always, 30B is type wheel 3-38*!1 3B, 3
゜R has a type wheel S-4SRKII. Therefore, in this example, the printed digit of type 3B is always W41 color mark 7.

Naturally, the circumferential rib 4aK is rotated 413
y J2 separator 29t at the position of the l roll 30B
), and the color of the ink roll in the part facing the type wheel 3-58 may be set to a third color. In that case, the numerical information and the symbol information indicating the division should be clearly separated on a calculator etc., and the printed data should be There are features that make it easier to see.

In addition, the arm ends 28a and 28b hold the holding 11 phase 4 between vK
A brocade may be provided on the outer circumferential surface of the circular direction rib 4d, and a portion of the separator 29 & close to the outside may be inserted into the groove to prevent relative movement between the ink roller 5o and the type wheel 3. .

In addition, instead of using an ink roll as an ink supply means, the type wheel 3 itself may be made of a material that can be impregnated with ink and may be impregnated with ink in advance. Ink may be additionally supplied using a roll.

As explained above, in the case of the first printed character, the second printed character, and even in the case of multi-color printing, printing starts from the lowest digit, and w4 is used for color selection (B selection) and for multicolor printing. 2 color selection (
In the case of [R selection] and in the case of other color selections, even if fn is m, the n digit (f-1B in case of no *m*) is selected.
Since the timing of character selection for the second digit is only slightly different, if the same character combination and number of digits are printed, it is possible to print one line in approximately the same amount of time.This eliminates the disadvantages of the conventional method. It is possible to realize a type-type serial printer that can print in two colors, which has never existed before, and can have two or more symbol type wheels completely independently. This type of printer is innovatively useful in fields where this type of printer is used (e.g., calculators). There is no doubt that the present invention has significant effects.

[Brief explanation of drawings]

W41 @ 4 e 5 m 4-Fi is a plan cross-sectional view showing one embodiment of the serial printer of the present invention, and is a status diagram for each digit. The w42 diagram is type wheel 5 and maintenance! It is a cross-sectional view of the part 4 and part 7 [IIIJ structure]. FIG. 143 is a perspective view of part @P. Figure 'm7 is a partial plan sectional view showing another embodiment of the present invention. msgang is a diagram showing one embodiment of the ink supply means ◎Here 2...Printing paper 3B...At color printing type B 5R...Second combination printing type R 4... Holding m @ 5... Guide shaft 6... Biasing means 7... Hammer 7a... Suppressing part 8... Carriage 8a... axis (-V of the determining means of the operation locus of the suppressor 7a)
i! J) 8g... Part of the carriage 12... Drive! I411 13... Carry cam It3a... Row 14... Compensation plate +14 &... Teeth 12 e I S e 15
a * 14 * 14 a... Carry means 16...
・Part P * 16 Q...-16f e 16 g
...Part 17...Part @Q117c...- t4cs t7c...Engagement means 11 2s...FIB@R 25...Biasing means 16...Cam 1 25.26...Trigger More than one means of development: Kishu Hokuki Co., Ltd. - Hoken Kosha - 35:

Claims (1)

[Claims] ... By selecting a desired character by the character selection means, the type corresponding to the character is forced to stop against the printing paper, and...the printing type and the printing paper are pressed by the printer, and no printing occurs. In the serial linter, if there is no carry during a period other than when the printing is performed, and the rotation of the type is stopped for at least 72 periods during the period when the carry is not carried out, -$ The type B for one-color printing, the type R for w42-color stamps, the holding members for the type B and the type H, *Holding Wi! The guide shaft 41e includes the I shrine integrally in the rotation direction and slidably in the axial direction, and the type BTo or P! 4!117j of the guide shaft independently of the holding m@, and is responsible for determining the movement locus of the pressing part of the presser, which presses the type letter R and the paper to be printed. a carriage movable at the same time; a carry means for moving the mortar carriage stepwise in the axial direction of the guide shaft;
By selectively selecting character group B or a certain character group R of W at a certain time by the character selection means, the character group B or the character R and the axis of the IIJ guide-inner shaft of the front Gobihammer are selected. A serial printer characterized in that it has a structure in which it is possible to select the first color printing of 1lUJ or the second handwriting by operating the relative position control means to determine the relative positional relationship in the direction K. −
6 (21 The relative position control hand 1ij is punishable by W!81
A biasing means for biasing one piece of material in a direction opposite to the direction on which it is placed, and the holding member! ! 0 is clamped in the carriage, and one sliding force is rotatably fitted on the guide shaft.
Recording position - i! to decide the relationship! Mark out the part to be engaged with a part of the carriage. At least one waiting part @P for each of 4-B and 11 type R, and the engagement operation of the part of the carriage and the part. and a member (and the part @ and a biasing means for biasing the Qt-m Kibe shaving P toward the S shaving P and the member S, and a retaining means is provided on the same surface of each of the S shaving P and the member S in the direction of rotation thereof.
Mutual (b) dislocation with the previous cs@p and the above @@CL, flk has reached a correlation, and the above 11'If4Ph phloem section shaved Q
When engaged with the tl unitary K1m1ll<*aa
Claim No. 1gl in which “m” is 411J
The serial printer described in 1.