JPH0122156B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a repeat device suitable for use in printing machines such as time stamps and numbering machines.

Conventional repeat devices used in printing machines such as time stamps and number rings are equipped with multiple repeat ratchet wheels arranged on the same axis, with feed teeth arbitrarily set and equally divided. Since the structure was such that an arbitrary number of repeats could be obtained by selecting one of the wheels and engaging it with the repeat feed pawl, it was necessary to install a large number of ratchet wheels in order to obtain a wide variety of repeats. It was hot. However, as the number of repeats increases, the number of ratchet wheels increases and the width becomes wider, so the equipment that properly selects and engages the repeat feed pawls with these ratchet wheels becomes complicated, and the overall device There is a problem that the printing machine becomes large and does not require sufficient installation space inside the printing machine.In addition, there is also the problem that the operation for selecting the number of repeats is extremely complicated and cannot be used easily, and there are at most four types of repeat times. However, it was inconvenient to use because the desired number of repeats could not be obtained in some cases.

The present invention has been developed in view of the above-mentioned points, and its purpose is to determine the number of repeats of many types, for example, about 10 types, using one compact device. The object of the present invention is to provide a repeat device for a printing machine that is designed to be able to easily select, set, and change the number of repeats. will be described in detail with reference to the illustrated embodiments.

FIG. 1 is a side sectional view showing an embodiment of a time stamp equipped with a repeat device according to the present invention, and in the figure, the body generally indicated by the reference numeral 1 includes a lower case 2 and a lower case 2. It consists of an upper case 3 attached to the upper surface in an open state, and inside the lower case 2 there is a bottom plate 4 with seat plates 5 standing upright on both left and right ends.
is fixed. Reference numeral 6 denotes a rear end support plate 5 of each of the seat plates 5 that protrudes from the lower case 2 toward the upper case 3.
A type support arm is attached to a shaft 6a so as to be movable up and down, and a type shaft 7 installed between both ends of the support arm 6 has various types of type (not shown) such as numbers and symbols on its circumferential surface. ) A plurality of type wheels 8 are attached, and a ratchet wheel 9 for feeding and carrying the type is fixed to the side of each of these type wheels 8.

10 is an interlocking arm rotatably connected to the distal end of the type support arm 6 using a connecting shaft 11;
A guide roller 12 attached to the lower end of this interlocking arm 10 is movably fitted into an inclined elongated hole 15 of a guide plate 14 provided on the plate 4. When the guide roller 12 is located at the lower end entrance of the oblique oblong hole 15 as shown in FIG. Although the guide roller 12 is stopped, when it moves toward its upper end along the oblique elongated hole 15 as shown by the imaginary line in the figure, the interlocking arm 10 pulls the entire type support arm 6 with a traction spring (not shown). While stretching, push up and rotate counterclockwise in the figure using the shaft 6a as a fulcrum, insert the type ring 8 along the upper guide plate 2a of the lower case 2 as shown by the imaginary line in the figure, and attach it to the printing paper P. Rotate downward towards the target (print rotation)
The system is set up to do so.

Further, in FIG. 1, 20 and 21 are guide shafts installed between the left and right seat plates 5, and 22 is a roller box movably attached to the guide shafts 20 and 21. 23 is a roller shaft rotatably installed on this roller box 22, and 24 is a roller shaft that rotates both guide shafts 20, 21 as the roller box 22 moves.
This figure shows a printing roller attached to the center of the roller shaft 23 which is supported on the upper surface and rolls, and this printing roller 24 presses and rolls against the bottom side of the printing paper P which is being pressed by the printing wheel 8. Accordingly, a predetermined print is made on the printing paper P.

Similarly, in FIG. 1, the reference numeral 30 indicates a drive device that controls the lowering rotation of the type wheel 8 and the rolling of the printing roller 24, and 31 designates a motor serving as its drive source. These are all installed inside the lower case 2. The above drive device 30
A rotary disk 33 rotatably attached to a main shaft 32 erected on the bottom plate 4, a slide plate 36 that moves the guide roller 12 attached to the interlocking arm 10 as the disk 33 rotates, and a roller. The box 22 is configured by a crank plate 37 that reciprocates along the guide shafts 20 and 21.

The disk 33 is rotated by meshing a worm 31b attached to the rotating shaft 31a of the motor 31 with a worm gear 34 formed on its circumferential surface. Further, a substantially heart-shaped grooved cam 35 is recessed in the bottom surface of the rotating disk 33, and by fitting into this grooved cam 35 an operating roller 35a attached to the upper surface of the slide plate 36, one of the rotating disks 33 The rotation causes the slide plate 36 to reciprocate in the longitudinal direction, and an operation plate 36a provided upright at its tip operates the guide roller 12 to lower and raise the type wheel 8.

A rotary disk 33 is attached to the crank plate 37 whose root end is pivotally connected to a mounting shaft 38 provided upright on the bottom plate 4.
A first crank elongated hole 37a into which a crank roller 39 protruding from the upper surface is loosely fitted, and a second crank elongated hole 37b into which a driven roller 25 vertically provided on the bottom surface of the roller box 22 is loosely fitted are bored. Then, when the disk 33 starts rotating, the crank roller 39 rotates the crank plate 37 in a fan shape about the mounting shaft 38 as a fulcrum.
The roller box 22 is reciprocated along the guide shafts 20 and 21.

The time stamp driving device 30 having the above-mentioned configuration operates by driving the disk 33 by starting the motor 31.
starts rotating, the slide plate 36 rotates the type support arm 6, lowers the type wheel 8, and presses the type at the bottom printing position onto the upper surface of the printing paper P inserted along the guide plate 2a. At the same time, the crank plate 37 rotates to press and roll the printing roller 24 against the bottom side of the printing paper P on which the printed characters are pressed, thereby making it possible to perform predetermined printing in a predetermined column of the printing paper P. Next, the type feed mechanism of the type wheel 8 that rotates for printing as described above will be explained based on the description in FIG.

In the figure, 40 is a mounting plate fixed inside the upper case 3, and this mounting plate 40 has an electromagnetic solenoid 41,
A rotating piece 42 and a feed pawl 43 are attached.
The rotating piece 42 is resiliently rotated by a compression spring 41b wound around the rod 41a of the solenoid 41, so that the feed pawl 43 is always rotated to the position shown in FIG. 1, that is, the tip 43a returns after printing. The type ring 8 engages with the ratchet wheel 9 and rotates under pressure to the position where type is fed, but when the solenoid 41 is energized and the rod 41a is pulled, it moves counterclockwise in the drawing with the mounting shaft 42a as a fulcrum. The operating shaft 42b attached to the tip pushes the entire feed claw 43 counterclockwise in the drawing with the claw mounting shaft 44 as a fulcrum, and rotates the claw 43a to return the type wheel 8. It is designed to retreat from the road. In the present invention, the retraction of the feed pawl 43 due to the excitation of the solenoid 41 is controlled by the type wheel 8 after printing is completed by the configuration described later.
This is done every time the unit rotates back toward its original position.
It is configured so that no type feed is performed. still,
Although not shown, a detent is engaged with the ratchet wheel 9 to prevent reverse rotation. Also, 9 in the figure
a is a support groove provided in the ratchet wheel 9, and when the toe 43a of the feed pawl 43 falls into this groove 9a,
It is constructed so that the next type wheel can be shifted. Furthermore, in the figure, 45 indicates a trigger.

The repeat device of the present invention implemented in the time stamp (printing machine) configured as described above is the first repeat device of the present invention.
A block 50 shown by imaginary lines in the figure is attached to the bottom plate 4 of the lower case 2, and controls the excitation of the solenoid 41 to perform the same printing a set number of times, and after completing the set number of prints, the solenoid 41 The repeat device 50 is energized to feed the type in the type wheel 8.Next, the specific structure of this repeat device 50 will be explained based on the descriptions in FIGS. 2 to 6.

In the figure, 51 is a repeat saucer rotatably inserted into the mounting hole 4a of the bottom plate 4.
At the lower end of this repeat saucer 51 that protrudes to the bottom side of the bottom plate 4 through the spacer, there is a number ring 52 with a repeat number 52b of, for example, 0 to 10 displayed on the upper surface of each wing piece 52a formed at equal intervals. is fixed. Reference numeral 2X denotes a repeat number confirmation section formed by forming a diagonal cutout in the lower side edge of the lower case 2. This confirmation section 2X serves as a setting section for the repeat number 52b, and the rotation of the number ring 52 The repeat number 52b (in the case of FIG. 2, the number "10") placed in the confirmation part 2X by the operation becomes the set number of repeats,
Moreover, the set repeat number 52b can be confirmed from the upper side of the lower case 2 through the confirmation part 2X. Further, the confirmation section 2X described above also serves as an operation section for manually rotating the number ring 52.

The repeat saucer 51, which has a number ring 52 fixed to its lower end as shown below and is configured to rotate integrally with the rotation operation of the number ring 52, has a mounting shaft 51a with a cylindrical cross section erected in the center, A fitting groove 51b is formed in a ring shape on the outer periphery of the side, and a large number of locking teeth 51c (total of 12 in the drawing) are formed to protrude outward at intervals on the outer peripheral wall of the fitting groove 51b. These locking teeth 51c...
All of the locking teeth 51c are formed in a protruding manner corresponding to each display position of the repeat numeral 52b, except for the one facing the non-display area, and are provided corresponding to the repeat numeral 52b of "0". A fixing spout 51d is formed protruding near the inner side. Further, in the figure, reference numeral 53 denotes a substantially forked leaf spring attached to a mounting shaft 54 provided upright on the bottom plate 4, and locking claws 53a, 53a protruding from both inner edges of this leaf spring 53 are used for each of the above-mentioned engagements. It engages with the stop teeth 51c to elastically prevent the repeat saucer 51 from rotating freely.

Next, 55 is a count wheel which is rotatably attached to the repeat saucer 51 by fitting the mounting shaft 51a into a mounting cylinder 55a formed in the center, and this counter wheel is formed into a substantially disk shape as a whole. On the top surface of the wheel 55, there are many
Twelve (12) cylindrical protrusions 55b are erected at equal intervals in the circumferential direction, and on the outer circumferential surface thereof, a magnet box 55c containing a magnet 56 therein faces outward. It is installed protrudingly.

The count wheel 55 configured as described above is
Each time the rotary disk 33 rotates once, the feed protrusion 33a (see FIGS. 2 and 5) protruding from the periphery of the rotating disk 33 pushes the protrusion 55b.
It is fed and rotated pitch by pitch counterclockwise in the drawing while resisting the elasticity of the return spring 57 attached between the repeat saucer 51 and the count wheel 55, and this feeding state is controlled by the reset lever attached to the mounting shaft 54. The return spring is maintained by locking the protrusion 55b to a detent 58a formed on the bottom surface of the tip 58, and when the locking of the detent 58a is released by rotating the reset lever 58, the return spring 57, the count wheel 55 is rotated back in the clockwise direction in the drawing, and the movable stopper 55d protruding inside the count wheel 55 is engaged with the fixed stopper 51b on the repeat saucer 51 side, so that the above-mentioned return is carried out. Rotation is stopped and the count wheel 55 can be reset to the starting position.

Reference numeral 55e denotes a release protrusion protruding from the upper surface of the count wheel 55, and the release protrusion 55e is a release protrusion 55e that allows the magnet 56 to be attached to the upper mounting plate 59 of the repeat number confirmation section 2X as the count wheel 55 continues to rotate. Closed reed switch 60
When the switch is turned off with the switch positioned on the lower side as shown in FIG. direction, and the detent 58a is rotated in the direction of the protrusion 5.
5b to enable the return rotation (reverse rotation) of the count wheel 55, and the rotating state of the reset lever 58 is such that the protruding piece 58c protruding from the end of the lever touches the bottom surface of the periphery of the rotating disk 33. It is held in the locking groove 33b which is recessed in the opposite direction, and is held until the count wheel 55 is reset to the above-mentioned start position. It is configured so that the holding by the locking member is released and the locking member rotates again to return to the locking position.

62 is a magnet attached to the bottom surface of the rotating disk 33, and 63 is a normally closed second reed switch attached to a switch base 64 provided on the lower bottom plate 4 of the rotating path of the magnet 62, When the magnet 62 comes under the second reed switch 63 as the reed switch 33 rotates, the switch is turned on. This second reed switch 63 and the aforementioned reed switch 60 are both connected to a sixth reed switch in the power supply circuit of the solenoid 41 for the feed claw 43.
The second reed switch 6 is connected as shown in the figure.
3 closes each time printing is performed and solenoid 4
1 is excited and the repeat is repeated, but when the reed switch 60 is opened by the magnet 56,
Even when the second reed switch 63 is closed, the power supply circuit is opened, the solenoid 41 is not energized, repeating is stopped, and the feed pawl 43 is configured to feed the type.

Since the repeat device according to the present invention has the configuration as described above, when setting the number of repeats, the number ring 52 is connected to the repeat number confirmation section 2.
The desired repeat number 52b can be set in the confirmation section 2X by rotating the X section. At the time of initial setting, the repeat sorter 51 is rotated by operating the number ring 52, with the stoppers 51d and 55d of the repeat saucer 51 and count wheel 55 being pressed against each other by the action of the return spring 57. Then, the count wheel 55 is also rotated to determine the start position, and the start position of the repeat saucer 51, that is, the setting position of the desired repeat number 52b, is held by the leaf spring 53.

Once the number of repeats has been set as described above, printing can be performed by sequentially inserting the printing paper P. One printing operation due to the downward rotation of the type wheel 8 and the pressure rolling of the printing roller 23 is performed by one rotation of the rotating disk 33, which is driven by the motor 31. Each time, the feed protrusion 33a feeds and rotates the count wheel 55 one pitch at a time.

Figure 2 shows the state in which the number of repeats is set to 10, and 9 times of printing have already been completed and the current number is 10.
This shows a state in which the first printing is performed correctly.If the rotary disk 33 continues to rotate in the clockwise direction in the drawing in this state, the feed will be delayed before the printing wheel 8 finishes printing and rises. The protrusion 33a feeds the count wheel 55 by one pitch, and the magnet 5
6 to the lower side of the reed switch 60 as shown in FIG. 5 to turn it off. reed switch 60
At the same time as the switch is turned off, the release protrusion 55e
presses the reset lever 58 and detents 58a.
In order to remove the count wheel 5 from the protrusion 55b,
5 starts its return rotation by the return spring 57, but the reed switch 60 self-maintains the OFF state until the rotary disk 33 makes one rotation and the type wheel 8 is completely rotated back. The type wheel 8 raises the feed pawl 43 to its original position without being energized.
The type can be fed by meshing with the ratchet wheel 9 while keeping it protruding in the direction.

Further, the reset switch lever 58, which has been rotated to be released by the release protrusion 55e, maintains the released state for a while with the protrusion 58c held in the locking groove 33b of the rotary disk 33, so that the count wheel 55 is moved to the movable stopper 55d. It is rotated back by the return spring 57 until it touches the fixed stopper 51d, and is again reset to the repeat count "10" position, so that the next repeat count will also be 10. If you want to set the repeat number to, for example, 5 times from the next time during the above printing, rotate the number ring 52 and set the repeat number 52b of "5" in the repeat number confirmation section 2X, and the repeat saucer 51 As the fixed stopper 51b rotates, the fixed stopper 51b moves 5 pitches to the second position.
In the figure, the count wheel 55 is sent counterclockwise and set, so when the reset lever 58 is released, the count wheel 55 is reversed, and the reversal is stopped and reset after 5 pitches. The same printing can be repeated, and therefore, with the above configuration, the number of repeats from 0 to 10 can be arbitrarily set by rotating the number ring 52.

In the illustrated embodiment, the count wheel 55
The feed rotation is performed by a rotary disk 33 for operating the printing device, but this may also be performed by other rotating members, and the device shown in the figure can feed up to 10 times. However, it goes without saying that the number can be easily increased or decreased by changing the design.

Since the repeat device for a printing machine according to the present invention is as described above, the number of repeats can be arbitrarily set to 10 times or more, which is far more than the conventional repeat device using a ratchet wheel. I can do it,
In addition, the repeat count can be switched and set by simply rotating the number ring from outside the printing machine, making the operation extremely easy.Moreover, the main parts of the device are a repeat saucer with a number ring, a count wheel, and a reset. Since it can be configured with a lever, it has the advantage that it can be manufactured easily and compactly even though a large number of repeats can be set, and it can be easily installed in a narrow printing machine. It is suitable for use in printing machines such as .

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing an example of a printing machine implementing the repeat device of the present invention, FIG. 2 is a plan view of the present invention, FIG. 3 is a side sectional view thereof, and FIG. 4 is a repeat saucer and plate. A partially sectional plan view of the spring, FIG. 5 is a plan view showing the mutual relationship between the count wheel, reset lever, and rotating disk, and FIG. 6 is a power supply circuit diagram of the solenoid. 1...Body of the printing machine, 2X...Confirmation part provided in the lower case, P...Print paper, 8...Type wheel, 9...
...Ratchet wheel, 24...Print roller, 33...
Rotating disc, 33a...Feed protrusion, 33b...Latching groove, 41...Solenoid, 43...Feed claw, 51
... Repeat saucer, 51d ... Fixed stopper, 52 ... Number ring, 52b ... Repeat number, 53 ... Leaf spring, 55 ... Count wheel, 55b ... Protrusion, 55d ... Movable stopper, 55e ... Release protrusion, 56...Magnet,
57...Return spring, 58...Reset lever, 58a...Detent, 58c...Protrusion piece, 60
...Reed switch.

Claims (1)

[Scope of Claims] 1. When the type wheel rotates for printing toward the printing paper and rotates back, the feed pawl engages with the ratchet wheel attached to the type wheel, and the type wheel is rotated by one character.
Furthermore, in a printing machine configured so that the type wheel is not fed when the solenoid is energized and the feed pawl is rotated, the solenoid is energized each time the type wheel returns to rotation. On the other hand, on the body side of the printing machine, a repeat saucer equipped with a number ring displaying multiple repeat numbers arranged in numerical order can be set to any repeat number, and the set state can be changed elastically. The repeat saucer is rotatably mounted so that it can be locked to the repeat saucer, and the repeat saucer is fed and rotated each time the type wheel rotates for printing, and this feed rotation position is held by engagement of a reset lever. A count wheel is rotatably mounted, and between the repeat saucer and the count wheel, the count wheel is always energized in a direction opposite to the feed direction, and when the reset lever is disengaged, A return spring is installed that rotates the count wheel in the opposite direction until it locks onto a fixed spout provided on the repeat saucer and resets it to the start position, and the count wheel is fed the number of repeat numbers set above. Then, install a magnet that opens the reed switch for the solenoid installed on the aircraft side and stops the excitation of the solenoid.
The repeat device for a printing machine is characterized in that the count wheel is provided with a release protrusion that releases and rotates the reset lever when the magnet turns on the reed switch, thereby allowing the count wheel to rotate in reverse. 2. The repeat saucer is fed and rotated by one repeat number displayed on the number ring each time the type wheel rotates for printing, by a feed protrusion provided on a rotating disk that rotates the type wheel for printing. A repeat device for a printing machine according to claim 1, characterized in that: 3. When the reset lever is rotated to be released by the release protrusion and disengaged from the count wheel, a protrusion protruding from the end thereof is held in a locking groove provided in the rotating disk, 3. The repeat device for a printing machine according to claim 1, wherein the released state is maintained until the count wheel reversely rotates to the start position.