JPH078224Y2 - Print block holding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a printing block holding device used in a printing device, and in particular, a time recorder for printing by slidingly moving the printing block corresponding to a printing area of a printing card. In the above, the present invention relates to a print block holding device that prevents movement of the print block when the ink roll unit is mounted.

[Prior Art] Conventionally, as a printing apparatus for a time recorder, for example,
As shown in the specification of No. 60-52700, there has been proposed one in which printing is performed by sliding a printing block corresponding to a printing area of a printing card (time card).

In this printing device, the printing block prints on the printing card by selectively striking the printing part provided on the rotating printing belt with the printing head. It is possible to slide such a printing block. As a result, it is possible to perform printing on all printing fields of the printing card and to downsize the entire device.

[Problems to be Solved by the Invention] In the above-described conventional printing apparatus, since the ink is supplied to the printing belt of the printing block, the ink roll unit is attached to the side surface of the printing block with respect to the printing block. It is designed to be attached from the part.

However, in the conventional printing apparatus, when the ink roll unit is mounted at the time of replacement, the pushing force acts on the ink roll unit as an external force, and as a result, the ink roll unit moves along the slide shaft. There is a problem that the device of the ink roll unit is not easy because it escapes.

The present invention has been made in view of the above circumstances, and an object thereof is to perform printing with which an ink roll unit can be easily and surely attached to a printing block of a printing device using a slidingly movable printing block. To provide a block holding device.

[Means for Achieving the Problem] In the present invention, which solves the above-mentioned conventional problems, a print frame is printed by selectively striking a print portion provided on a rotating print belt with a print head and a supporting frame. A printing block that is movably supported along a slide shaft supported by the printing block and that moves by printing in correspondence with the printing area of the printing card, and supplies ink to the printing belt that is mounted on the printing block. In a printing apparatus having an ink roll unit for performing an ink roll unit, an ink roll door attached to the insertion port of the ink roll unit, and movement of at least the print block in the pushing direction of the ink roll unit when the ink roll door is opened. The printing block holding device is characterized in that a printing block holding mechanism for blocking the above is provided.

[Operation] With the above configuration, in the printing block holding device of the present invention,
When the ink roll door is opened when replacing the ink roll unit, the print block holding mechanism prevents the print block from sliding, and when the ink roll unit is closed after the ink roll unit is installed, the print block The holding state is released, and thus the print block can be slid.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view showing a state in which an in-roll door of a time recorder according to an embodiment of the present invention is removed, FIG.
Similarly, FIG. 3 is a front view showing a state in which the ink roll door is attached, and FIG. 3 is a right side sectional view of the time recorder. In the figure, a card insertion slot 2 is provided in the upper part of the outer casing 1 of the time recorder so that a print card (hereinafter referred to as a time card) can be inserted therein. Also,
A card path 3 extends downward in the outer housing 1 and is continuous with the insertion slot 2. The card passage 3 is composed of a pair of guide plates 3a and 3b arranged in parallel. A printing block 20 described later is provided on one side (front side) of the card passage 3. Further, a platen 16 is provided on the other side of the card passage 3 and at a position facing the printing block 20 (a position facing the above-mentioned type belt 4). The platen 16 is rotated counterclockwise in FIG. 3 by the solenoid 15 against the elastic force of the tension spring 15a during printing so as to face the time card, thereby preventing the time card from bending. ing.

A micro switch 6 for detecting the insertion of the time card into the card passage 3 is arranged below the printing block 20. Further, below the micro switch 6 and before and after the card passage 3, the card passage 3 is provided.
A pair of feed rollers 9 and 10 for feeding the time card inserted therein to the lower side of the passage 3 are rotatably arranged around rotating shafts 11 and 12. These feed rollers 9 and 10 are rotationally driven by a card feed motor 14 via a gear 13. Further, below the rotary shafts 11 and 12, on both left and right edges of the card passage 3, notch blocks 17 of the card passage 3 are provided.
The two sensors 18 and 19 are provided symmetrically on the left and right. These sensors 18 and 19 are each composed of a photo interrupter including light emitting elements 18a and 19a and light receiving elements 18b and 19b. The sensors 18 and 19 detect a detected block, such as a notch, provided on the lower side of one side of the time card to determine whether the card is inserted, that is, whether the card is front, back, or upside down. The reading target block (for example, a round hole) for positioning the printing stage formed along the edge is read.

The printing block 20 prints by selectively striking the type portion of the type belt 4 which is laid between the drive pulley 21 and the driven pulley 22 and driven to rotate by the print head 23. The print block 20 is driven by a print block feed motor 24 of a slide mechanism and is slid in both left and right directions in FIG. 1 as described later.

That is, in this time recorder, the entire print block 20 on which the type belt 4 is stretched is moved to the print block feed motor.
24 is configured to be slidable in both left and right directions. Therefore, by sliding the printing block 20 to the left or right according to the printing area of the time card, by printing, for example, the date formed on the left side of the time card, the attendance column, etc., and the right side are formed. For example, it is possible to print the exit field in two minutes.

Next, the slide mechanism of the printing block 20 will be described.
Two pairs of guide holes 29, 29 and guide holes 30, 30 are respectively provided at the upper ends of the left and right side plates 25, 26 of the printing block 20. The guide holes 29, 29 and the guide holes 30, 30 are bar-shaped. The slide shafts 27, 28 are inserted and supported so as to be slidable left and right in FIG. Both ends of the slide shafts 27, 28 are supported by support frames 33, 34 which are vertically attached to support frames 31, 32 fixed on both sides of the guide plates 3a, 3a constituting the card passage 3. .

Also, on the outer surface of the support frame 31 supporting one end of the right slide shafts 27, 28, the support frame 31
A mounting plate 37 is provided integrally with the mounting plate 37. On the other hand, mounting plates 35 that are integrally mounted to the support frame 32 are provided on the support frame 32 that supports the other ends of the slide shafts 27 and 28. The mounting plate 37 is provided with a disk-shaped guide pulley 38. A print block feed motor 24 is disposed on one of the mounting plates 35, and a drive pulley 36 is attached to the motor shaft of the print block feed motor 24. And the drive pulley 36
A drive wire 40 is stretched between the guide pulley 38 and the guide pulley 38, and the drive wire 40 is made to travel between the pulleys 36 and 38 by the rotational driving of the print block feed motor 24, and the print block 20 Is provided with a wire fixing piece 39 projecting to the front side, and the printing block 20 can slide in the left-right direction in FIG. 1 as the drive wire 40 travels. The drive wire 40 is attached to the drive pulley 36.
Is double wound to increase the frictional force, and a tension spring 41 is arranged in the middle of the wire 40 to adjust the slip of the printing block 20.

By the slide mechanism configured as described above, the printing block 20 is guided by the slide shafts 27 and 28 to be slid to the left end position and the right end position by the forward or reverse rotation of the motor 24. As described above, by sliding the print block 20 to the left and right, even if the maximum print digit of the print block 20 is, for example, 20 digits, it is possible to print 40 digits, which is twice as large as that of the time card. Further, stoppers 33, 3 having a predetermined length are provided at both ends of the slide shaft 27.
4 are arranged. These stoppers 33, 34 are set so as to enable printing corresponding to the printing area of the time card for printing. The left and right slides of the printing block 20 are performed by the user operating operation keys (not shown, such as attendance, leaving and overtime) provided on the front of the time recorder. As a result, the motors 20 are driven and moved to the corresponding positions, and are automatically moved to the corresponding positions according to the time zones of work and leaving.

As described above, the ink roll unit mounting portion 42 is provided on the left side of the slidable printing block 20. An ink roll unit 43 is mounted on the ink roll unit mounting portion 42, and the ink roll unit 43 is brought into sliding contact with the type belt 4 to supply ink to the type belt 4. The ink roll unit 43 is inserted from an ink roll insertion port 44 provided on the left side surface portion of the outer casing 1. After the ink roll unit 43 is attached to the ink roll insertion port 44, an ink roll door 47 is attached as shown in FIG.

The time recorder of the present embodiment is provided with a print block holding device for preventing the print block 20 from moving in the pushing direction by the pushing force of the ink roll unit 43 when the ink roll unit 43 is mounted. is there.

4 and 5 are enlarged views of the print block holding device section. In the figure, the support frame 31 has a fulcrum
A print block holding lever 45, which is bent in a substantially V shape through 48, is rotatably attached. A tension spring 46, which constitutes a biasing means, is stretched between the substantially central portion of the lever piece of the print block holding lever 45 on the ink roll insertion port 44 side and the upper end portion of the support frame 31. As a result, the print block holding lever 45 is always urged in the clockwise direction, and when the ink roll door 47 is removed as shown in FIG. 4, the leading end of the lever piece is the ink roll insertion port.
It is located at 44. An engaging portion 45a forming a second engaging portion is provided on the lower surface of the other lever piece of the print block holding lever 45, and this engaging portion 45a is the first engaging portion of the print block 20 described above. Side plate 25
To prevent the print block 20 from sliding to the right in FIG. As shown in FIG. 5, the engagement between the print block holding lever 45 and the print block 20 is such that when the ink roll door 47 is attached to the ink roll insertion port 44, the print block holding lever 45 has a tension spring 46. It is released by rotating counterclockwise against the urging force of.

FIG. 6 is an enlarged view of the sectional structure of the fulcrum portion 48 taken along the line 6-6 in FIG. No. 7 on the support frame 31
A T-shaped opening 48a as shown in the figure is provided, and this opening 4a
The print block holding lever 45 is inserted into the 8a together with the engaging portion 45a. Further, a widened portion 45b is formed from a substantially central portion of the print block holding lever 45 to prevent the print block holding lever 45 from coming out inside the support frame 31.

With such a configuration, in the time recorder of the present embodiment, when the ink roll door 47 is removed as shown in FIG. 4, the printing block 20 includes the engaging portion 45a of the printing block holding lever 45 and the side plate of the printing block 20. Ink roll unit 43 because it is held by engagement with 25
Block when mounting the ink on the ink roll mounting section 42
Even if the pushing force acts on the printing block 20, the printing block 20 does not slide and escape to the right. Therefore, the ink roll unit 43 can be mounted easily and surely.

When the mounting of the ink roll unit 43 is completed and the ink roll door 47 is mounted in the ink roll insertion port 44, the inner wall surface of the ink roll door 47 engages with one end of the print block holding lever 45, whereby the tension spring 46. The print block holding lever 45 rotates counterclockwise in FIG. 5 against the urging force of the print block holding lever 45, and as a result, the engagement between the print block holding lever 45 and the print block 20 is released. Therefore, printing by the printing block 20 as described above can be performed. Also,
Here, when the printing block 20 is located on the right side for performing printing at the time of leaving, for example, by pressing the operation key, for example, the attendance key, and sliding the printing block 20 to the ink roll door 47 side as described above. Similarly, the engagement between the print block holding lever 45 and the print block 20 can be obtained. This operation is the same before or after opening the ink roll door 47.

8 and 9 show another embodiment of the printing block holding device. In this embodiment, the print block holding device is viewed from above.

In this embodiment, the engaging member is integrated with the L-shaped ink roll door 48. That is, one end of the ink roll door 48 is rotatably supported by the pivot shaft 49, and one end of the engaging member 50 is fixed to the supporting portion. Then, as shown in FIG. 8, the ink roll door
When 48 is opened, the other end of the engaging member 50 engages with the upper end of the side plate 25 in the print block 20, and
As shown in the figure, when the ink roll door 48 is closed, the engagement member 50 is rotated with the rotation of the ink roll door 48 to release the above-mentioned engaged state.

With this configuration, the ink roll unit 43 can be easily and surely mounted as in the above-described embodiment.

10 and 11 show another embodiment of the present invention. In the embodiment shown in FIG. 10, a detection switch is turned on / off according to attachment / detachment of the ink roll door.
The latching solenoid 51 is installed inside the outer casing 1 and is operated by the detection signal of the detection switch 51.
52 and a printing block holding lever 53 that is rotated by the latching solenoid 52, respectively, to support frame 31.
It was installed on. Here, the provision of the engaging portion 53a on the print block holding lever 53 and the structure of the fulcrum portion 53b are the same as those in the embodiment of FIG.

With such a structure, when the ink roll door is removed when the ink roll unit 43 is attached, the detection switch 51 is turned on and the latching solenoid 52 operates. As a result, the print block holding lever 53 rotates clockwise against the urging force of the spring 52a, and the engaging portion 53a engages with the side brake 25 of the print block 20 to cause the print block.
Block 20 moves. And the ink roll unit 43
When the ink roll door 47 is installed after installing, the detection switch 51 turns off and the latching solenoid 52
Becomes inactive. Therefore, the printing block holding lever 53 is rotated in the counterclockwise direction by the urging force of the spring 52a, and the engaged state is released.

Further, in the embodiment shown in FIG. 11, the detection switch 54 which is turned on / off according to the attachment / detachment of the ink roll door 47 is provided in the outer casing 1.
The electromagnet 55, which is energized by the ON signal of the detection switch 54, is attached to one end of the shaft 27, and the side plate 25 of the printing block 20 faces the electromagnet 55 and is made of, for example, an iron plate. 56 is attached.

With such a structure, when the ink roll door is removed, the detection switch 54 is turned on to energize the electromagnet 55, the magnetic member 56 is attracted, and the printing block 20
Is held, which facilitates mounting of the ink roll unit 43. When the ink roll door is mounted, the detection switch 54 is turned off and the electromagnet 55 is de-energized, and as a result, the attraction of the magnetic member 56 is released. This allows the printing block 20 to slide.

Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above embodiments, and it is needless to say that various modifications can be made without departing from the gist of the invention.

[Advantage of Invention] As described above, according to the printing block holding device of the present invention,
In a printing device that prints with a slidable print block, the print block holding mechanism that operates according to the opening and closing of the ink roll door is used to prevent the print block from sliding, so the print block does not The ink roll unit can be easily replaced without failing to escape.

[Brief description of drawings]

FIG. 1 is a front view showing a cross-section of a time recorder according to an embodiment of the present invention before mounting an ink roll unit,
FIG. 2 is a front view showing a sectional view of the state after the ink roll unit is mounted, FIG. 3 is a right side sectional view of the time recorder, and FIGS. 4 and 5 are main parts of FIGS. 1 and 2, respectively. FIG. 6 is an enlarged cross-sectional view taken out and shown in FIG.
-6 is a sectional view taken along line -6, FIG. 7 is a front view showing the fulcrum portion of the support frame in FIG. 6, and FIGS. 8 and 9 are plan views showing another embodiment of the present invention in section. FIG. 10 and FIG. 11 are sectional front views showing still another embodiment of the present invention. 20 …… Printing block, 43 …… Ink roll unit, 4
5,53 …… Print block holding lever, 46 …… Tension spring, 4
7,48 ... Ink roll door, 50 ... Engaging member, 51,54 ...
… Detection switch, 55 …… Electromagnet, 56 …… Magnetic member

Claims (5)

[Scope of utility model registration request] 1. A printing part is provided with a printing part for selectively striking a printing part provided on a rotating printing belt to print on a printing card and is supported so as to be movable along a slide shaft supported by a supporting frame. A printing apparatus comprising: a printing block which is moved corresponding to a printing area of a printing card to perform printing; and an ink roll unit which is mounted on the printing block and supplies ink to the printing belt, An ink roll door attached to the insertion opening of the ink roll, and a print block holding mechanism for preventing the print block from moving in the pushing direction of at least the ink roll unit when the ink roll door is opened. Printing block holding device. 2. The print block holding mechanism includes a first engaging portion provided on the print block, an intermediate portion rotatably supported with respect to the support frame, and one end for inserting the ink roll unit. A print block holding lever located at the mouth and provided with a second engaging portion at the other end, and a second engaging portion of the print block holding lever for engaging with the first engaging portion. Urging means for urging the print block holding lever, and when the ink roll door is closed, the print block holding lever is rotated against the urging force of the urging means to release the engagement state. The printing block holding device according to claim 1. 3. The printing block holding mechanism is provided with an engaging portion on the printing block, supports the ink roll door so as to be openable and closable around one end, and has a locking member integrally with the ink roll door. 2. The printing block according to claim 1, wherein the printing block is attached, and the locking member engages with an engaging portion of the printing block when the ink roll door is opened, and the engagement state is released when the ink roll door is closed. Holding device. 4. The print block holding mechanism includes a first engaging portion provided on the print block, and an intermediate portion rotatably supported with respect to the support frame, and a second engaging portion at one end. A print block holding lever, a detection switch for detecting the open / closed state of the ink roll door, and the other end of the print block holding lever at the engagement state of the first engagement portion and the second engagement portion. Is actuated in response to the output signal of the detection switch when the ink roll door is opened, and the print block holding lever is rotated against the biasing force to rotate the print block holding lever. 2. The printing block holding device according to claim 1, further comprising an electromagnetic means for engaging the second engaging portion with the second engaging portion. 5. The print block holding mechanism includes a magnetic member attached to the print block, a detection switch for detecting an open / closed state of the ink roll door, and a detection signal of the detection switch when the ink roll door is opened. 2. The printing block holding device according to claim 1, further comprising: electromagnetic means that is excited by receiving the magnetic material and attracts the magnetic member.