JPS5837657Y2 - Stamp holder holding device in printer - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stamp holder holding device in a printer.

In printers, in addition to the printer's original printing operation using a printing shaft, printers have been developed which are designed to improve efficiency by using a stamp device to print a certain amount of text.

This type of stamp device can be attached to the stamp holding member of the printer in a replaceable manner, and when it comes into pressure contact with the stamp receiving plate, good stamp printing cannot be obtained unless the entire surface is pressed uniformly. A support member is provided for passively attaching the stamp to the stamp holding member.

This supporting member is attached to the stamp holding member so that the supporting spherical surface protrudes toward the back surface of the stamp device to which it is attached, and the supporting spherical surface is loosely supported by the stamp holding member. The four spherical parts formed on the back surface of the stamp device press elastically so as to move freely, so that when the stamp device is pressed against the stamp receiving plate, the entire surface can be pressed uniformly. It is designed so that it can be followed.

In order to facilitate installation and removal of such stamp devices, it has been proposed to install the stamp device by sliding the stamp device from the side of the stamp frame, but in conventional devices, the protruding spherical support surface gets in the way. However, when the stamp device is slid and installed, it floats up, making it difficult to install it correctly.

SUMMARY OF THE INVENTION The object of the present invention is to provide a stamp holder holding device for a puncher with a simple structure that eliminates the above-mentioned drawbacks.

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

Referring to FIG. 1, a printer suitable for incorporating the present invention has a main body 1, and print paper 3 drawn out from a built-in print paper supply roll 2 passes through a guide 4 to a paper feed roller 5 and a push roller. 6 and is guided around the printing shaft 7,
A desired print character is selected on the print shaft 7 by a print hammer (not shown) using an ink ribbon (described later) in response to a command from the control circuit of the printer, and then the print character is printed on the paper 3 and then received. It is guided along the plate 8 and discharged from the printer.

A paper feed roller 5 that feeds the paper 3 is rotatably supported by the main body 1, has a ratchet gear 9 fixed on a fixed shaft 10, and is synchronized with the printing operation by the printing shaft 7 as described later. In this connection, a ratchet pawl lever 13, which is pivoted on a shaft 12 mounted on a slide lever 11 which is driven to perform horizontal reciprocating motion, is rotated after the printing operation is completed by cooperating with the aforementioned ratchet gear 9. to feed the paper.

That is, the ratchet pawl lever 13 is locked at one end to a pin 14 serving as a limiting pin and at the other end to the ratchet pawl lever 13, and is biased counterclockwise by a spring 15 supported around the shaft 12. The arm 17a of the paper feed lever 17 has an upwardly extending arm 13a which is pivoted to the main body 1 by a shaft 16, although it has a tendency to engage with the ratchet gear 9.
The paper feed lever 17 has one end attached to a pin 18 implanted in the main body 1, and the other end attached to the paper feed lever 17.
The ratchet pawl lever 13 is biased clockwise by a spring 19 that is engaged with the ratchet gear 9.

The other arm 17b of the paper feed lever 17 is made of a magnetically actuated material and cooperates with an electromagnetic solenoid 20, so that when the printing operation is completed, the slide lever 11 is moved horizontally to the right from the illustrated position. Solenoid 2 periodically when moved
0 is energized by the control circuit, the paper feed lever 17 is attracted and swung counterclockwise, releasing the locking of the ratchet pawl lever 13 by the arm 17a, and ratcheting it by the action of the spring 15. engage gear 9.

As a result, as the slide lever 11 moves to the right, the ratchet claw lever 13 rotates the ratchet gear 9, and thus the paper feed roller 5, so that the paper 3 held between the press roller 6 and the paper 3 is fed by a predetermined amount.

A check lever 22 pivoted to the main body 1 and urged counterclockwise by a spring 21 cooperates with the ratchet gear 9,
This prevents reverse rotation.

When the solenoid 20 is deenergized, the paper feed lever 17 is swung clockwise by the action of the spring 19, and the ratchet pawl lever 13 is disengaged from the ratchet gear 9 and held there.

A limit pin 14 prevents excessive counterclockwise rotation of the ratchet pawl lever 13.

The aforementioned slide lever 11 is supported by a pin/elongated hole guide device 23 so as to be able to reciprocate in the horizontal direction with respect to the main body 1, and is moved from the position shown in the figure to the right, and from the right movement position to the left position shown in the figure. By performing one reciprocating motion, the printing paper is selectively cut or perforated as described later, and the ink ribbon is fed.

That is, a shaft 2 is rotatably supported by the main body 1 and is constantly rotated by a drive motor (not shown) during operation of the printer.
A ratchet gear 25 is fixed to the shaft 24, and a slide lever driving cam disc 26 is rotatably supported on the shaft 24.
An eccentric cam (not shown) integrally fixed to the cam disk is formed in a vertical elongated hole (not shown) in the slide lever 11.
When the cam disc 26 is rotated one turn counterclockwise from the position shown in the figure, the slide lever 11 is moved by the eccentric cam to the right from the position shown in the figure by an amount corresponding to the amount of eccentricity. Afterwards, it performs one reciprocating movement in which it returns to its original position.

In order to make one rotation of the cam disk 26 mentioned above, the cam disk 2
A ratchet pawl lever 28 is pivotally supported by a shaft 27 at 6, and as shown in the figure, a spring 29 biases the cam disk 26 inward and drives the cam disk 26 outward from the position shown. It is restricted by a restriction pin 30 that is implanted.

At this limit position, the engaging pawl 28 of the ratchet pawl lever 28
a does not engage with the ratchet gear 25, so the cam disk 26 is held stationary.

A locking lever 31 is provided to restrain the ratchet pawl lever 28 in the above-mentioned limit position and hold the cam disk 26 stationary.

This locking lever 31 is pivotally supported on the main body 1 by a shaft 32, and is biased clockwise by a spring 33 so that the free end 31
a is held in sliding contact with the outer periphery of the cam disk 26, and the arm 31
The free end of a is the tip 2 of the ratchet pawl lever 28 mentioned above.
8b, and holds the ratchet pawl lever 28 in the position where it is locked to the restriction pin 30 as shown in the figure, disengages it from the ratchet gear 25, and holds the cam disk 26 in a stationary state. .

In this position, the eccentric cam of the cam disk 26 is moved to the slide lever 1.
1 is held in the left position as shown.

The arm 31 a of the locking lever 31 is made of magnetically actuated material and is adapted to cooperate with an electromagnetic solenoid 34 .

Therefore, when the solenoid 34 is energized by the control circuit in a timed manner after the end of the printing operation of the printer, the locking lever 31 is attracted and swung counterclockwise, causing the limit pin 35 to be energized by the control circuit.
At this position, the free end of the arm 31a is disengaged from the distal end 28b of the ratchet pawl lever 28, and the ratchet pawl lever -28 is moved inside the cam disk 26 by the action of the spring 29. The ratchet pawl 28
a is engaged with the ratchet gear 25 which is constantly rotated, thereby rotating the cam disk 26 together with the ratchet pawl lever 28, and as described above, the slide lever 11 is moved to the right by the action of the eccentric cam.

Immediately after the solenoid 34 attracts the locking lever 31, the force is reduced, and the locking lever 31 is returned to a position in sliding contact with the outer periphery of the cam disk 26 by the action of the spring 33.

Therefore, when the cam disk 26 rotates once and the slide lever 11 completes one reciprocating movement, the ratchet pawl lever 28
The tip 28b of the locking lever 31 comes into contact with the free end of the arm 31a again and is locked, thereby swinging the ratchet pawl lever 28 to the position where it is locked to the restriction pin 30, thereby locking the ratchet pawl 28a. The cam disk 26 is separated from the ratchet gear 25 and held stationary after completing one rotation.

The previously mentioned ink ribbon 36 is connected to the ink ribbon supply reel 37.
After being guided through guide rollers 38 and 39 close to the printing shaft 7, the ink ribbon is taken up by an unillustrated ink ribbon winding knoll arranged symmetrically with the supply reel 37, and when a predetermined supply amount is reached, the feed switching device (not shown) reversely switches the ink ribbon 36 from the take-up reel to the supply reel 37, and this is alternately repeated.

In order to drive these reels, an actuating member 41 is connected to the right end of the slide lever 11 via a spring 40, and the actuating member 41 is actuated in conjunction with the reciprocating movement of the slide lever 11 to feed the ink ribbon 36. However, since it is not directly related to the present invention, it will not be described in detail.Before explaining the selective paper cutting or perforation operation performed in conjunction with the reciprocating movement of the slide lever 11, let us explain this in detail. The operation of the stamp device 42 for printing a fixed stamp on the printing paper 3 will be described.

The above-mentioned printer is designed to be used in stores to print slips handed to customers as receipts, etc. Therefore, in addition to the necessary printing, the printer also prints a certain amount of printed text for advertising, etc. on the slips. A stamp device 42 is provided so that stamps can be printed all at once without having to be activated.

When the stamp device 42 is brought into contact with the receiving plate 8 with the paper 3 interposed therebetween for stamp printing, the entire surface of the stamp device 42 is uniformly stamped on the receiving plate 8.
The stamp holding member 44 is supported by an L-shaped stamp holding member 44 that supports a support member 43 that is movably supported so as to be pressed against the guide member 4 fixed to the main body 1.
The guide shaft 46 provided in the holding member 44 has a long hole (
(not shown), the guide member 4 is guided so as to be able to reciprocate horizontally by a predetermined distance by slidingly fitting into the guide member 4 (not shown).
Pin 47 to be implanted in 5 and pin 4 to be implanted in holding member 44
The holding member 44 is held in the retracted position, that is, in a position where the stamp device 42 is spaced apart from the receiving plate 8, by a spring 49 stretched between the holding member 44 and the receiving plate 8.

An upright bent piece 44a is formed at the rear end of the stamp holding member 44, and is connected via a spring or the like (not shown) to a pin 52 installed at the upper end of a stamp operating lever 51 that is pivotally supported on the main body 1 by a shaft 50. When the stamp actuating lever 51 is swung counterclockwise, the stamp holding member and thus the stamp device 42 are advanced through the spring and come into contact with the pedestal 8, and the paper that is interposed by an appropriate pressing force due to the action of the spring is moved forward. 3 can be stamp printed.

The stamp operating lever 51 is pivotally connected to a plunger 54 of an electromagnetic solenoid 53 attached to the main body 1 at its lower end by a pin/elongated hole connecting device 55, and is formed to hang down from the rear end of the guide member 45. New song piece 45 a
A spring 56 stretched between the stamp operating lever 51 and a portion above the shaft 50 normally urges the stamp device 42 to swing clockwise, and holds the stamp device 42 in the retracted position. When the solenoid 53 is energized while the paper 3 is stopped and held after a predetermined printing on the paper 3 by the printer is completed, the plunger 54 is attracted and the stamp operating lever 51 is swung counterclockwise. The above-mentioned stamp printing is then performed.

The above-mentioned printer cuts the completed slip from the paper 3 to be handed over to the customer when the printing and stamp printing is finished, and selectively forms a perforation in the part where the stamp is not printed and then cuts it and uses it for in-store processing. A paper cutting and perforation operating cutter device 57 is provided for cutting and perforating the paper in a manner that allows the cutter device 57 and the stamp device 4 to
2 means that the paper 3 is cut by the cutter device 57 when the stamp device 42 is operated to print a stamp, and the stamp device 42 is cut after printing by a predetermined printer.
The slide lever 1 selectively cooperates to create a perforation when the paper 3 is fed a predetermined amount without being activated.
1 and the electromagnetic solenoid 53.

For this purpose, a switching lever (not shown) is used as the stamp holding member 4.
4 and the cutter holding member 6 are provided so as to cooperate with each other, and this switching lever is selectively operated by an electromagnetic solenoid (not shown), and when the electromagnetic solenoid is energized, stamp printing of the stamp device 42 and stamp printing of the cutter device 57 are performed. The paper cutting operation is allowed, but when the electromagnetic solenoid is deenergized, the switching lever stops the stamp device 42 at a position separated from the receiving plate 8, preventing stamp printing, and at the same time changing the forward position of the cutter device 57 to the perforation position. The paper is restricted to the forming position to prevent paper cutting and form perforations.

The cutter device 57 includes a cutter 58 and a cutter that is fixedly held and guided by a guide member 59 fixed to the main body 1 so as to be able to reciprocate horizontally by a predetermined distance by a pin/slot guide device (not shown). A holding member 60 is included.

This cutter holding member 60 has a retaining hole (not shown) and is formed by being bent at the upper end of a cutter actuating lever 62 which is pivotally supported on the main body 1 by a shaft 61, and has a notch provided in the holding member 59. The bent piece 63 extending upward through the hole fits into the retaining hole of the aforementioned holding member 60, and the cutter actuating lever 6
2 is swung counterclockwise, the cutter blade 59 is advanced together with the holding member 60, and the slit 68 formed in the receiving plate 8 is moved forward together with the holding member 60.
As described above, the paper is selectively cut or perforated depending on its advanced position.

Therefore, the cutter operating lever 62 is normally rotated clockwise, that is, when the cutter blade 58 is received, by a spring 64 tensioned between the hanging bent piece 45a of the guide member 45 and the portion above the shaft 61 of the cutter operating lever 62. It is energized to a position away from the plate 8 and is provided with a shaft 65 at its lower end, on which a slide connecting lever 66 is pivotally supported.

The slide connecting lever 66 is biased clockwise by a spring 67 stretched between it and the main body 1, and the right arm 66
The end of the left arm 66b is engaged with a bent piece 51a formed on the stamp operating lever 51, and a bent piece 66C is formed at the end of the left arm 66b.

A first step 11a and a second step 11 are attached to the slide lever 11 so as to be selectively engaged with this bent piece 66C.
b is formed.

That is, in the illustrated state, the arm 66a is locked by the bending piece 51a, and the bending piece 66C is connected to the first and second step portions 1.
1a and 11b, and the slide connecting lever 66 is removed regardless of the reciprocating movement of the slide lever 11.
is in an inoperative state and the cutter operating lever 62 is not operated, so the cutter device 57 is held in an inoperative state.

When the electromagnetic solenoid 53 is energized and the electromagnetic solenoid for energizing the aforementioned switching lever is energized, the stamp actuating lever 51 is allowed to swing throughout its entire stroke, so the stamp device 42 is moved forward and the paper is removed. The stamp is printed on the folded piece 5 by the swinging of the lever 51 throughout the entire stroke
1 a moves downward and the bent piece 66 of the slide connecting lever 66
The slide coupling lever 66 is swung by the action of the spring 67 to a position where the lever C engages with the first step 11 a of the slide lever 11 .

Accordingly, as the slide lever 11 moves to the right, the slide coupling lever 66 also moves to the right, which allows the cutter actuating lever 62 to swing its entire stroke in the counterclockwise direction, so that the cutter device 57 cuts the paper 3.

On the other hand, when the electromagnetic solenoid of the switching lever is deenergized, the switching lever moves to the stamp holding member 44 as described above.
Of course, the solenoid 53 is energized and the stamp actuating lever 51 is swung counterclockwise because the stamp holding member 60 is in the position to prevent stamp printing and the perforation forming position, respectively, to limit its forward movement. When the sliding lever 66 is moved, the swinging range is limited, stamp printing is not performed, and the downward movement position of the folding piece 51a is limited, so that the folding piece 66C of the slide connecting lever 66 is moved to the second stage of the slide lever 11. Since the second stepped portion 11b is in a retracted position relative to the rightward movement direction of the slide lever 11 than the first stepped portion 11a, the sliding The rightward movement of the connecting lever 66 is small, which limits the amount of advance of the cutter holding member 60, and advances the cutter blade 58 to the position where perforations are formed on the paper as described above.

The feature of the present invention in the above-mentioned printer is that when the stamp device 42 is attached to the stamp holding member 44 in a passive manner, it is attached by sliding from the side to the holding member 44 and engaged with the supporting member 43. The stamp device 42 is prevented from floating when the stamp device 42 is installed, so that it can be easily assembled in the correct position.

Referring to FIGS. 2-5, the upright bent portion 44 of the retaining member 44
A support member 43 made of an elastic material is fixed at its center by a mounting shaft 69 on the back surface of the support member 43, and a support spherical surface 43a formed integrally with the support member 43 at both ends thereof forms a bent portion 44a. The bent portion 44a protrudes from the front surface through the hole.

The holding member 44 and the horizontal bending piece 44b formed at the upper end of the bending part 44a have pairs of guide protrusions 70a, 70a, 70b, 70 that protrude to face each other.
ridges 72 formed on the rear edges of both upper and lower sides of the stamp frame 72 in which the stamp piece 71 for stamp printing is formed and the stamp frame 72 has a built-in stamp piece 71 for stamp printing.
As shown in FIG. 5, when the stamp frame 72 is attached to the holding member 44 by sliding it laterally from the left in FIG.

70b, a spherical recess 72b formed on the back surface of the stamp frame 72, inserted and guided between 70b and the upright bending part 44a and between the horizontal bending piece 44b and the holding member 44;
, 72 b is the supporting spherical surface 43 a , 4 of the supporting member 43
3a, the stamp frame 72 is movably supported by the support spherical surfaces 43a, 43a due to the elasticity of the support member 43, and when the stamp frame 72 is pressed against the receiving plate 8, a uniform pressing force is applied to the entire surface. It is made to be able to follow the pressure.

The stamp frame 72 has a grip 72 for easy manual operation.
C and a guide piece 7 that serves as a guide when inserting into the holding member 44
2d is formed.

Long grooves 72 e and 72 are formed on the back surface of the stamp frame 72 according to the feature of the present invention at the portions that come into contact with the protruding support spherical surface 43 a of the support member 43 when the stamp frame 72 is slid and inserted into the holding member 44 from the side. f, and when the stamp frame 72 is slid and inserted, the supporting spherical surface 4
3 a to reliably prevent it from floating due to being pushed by it.

With this configuration, the guide protrusions 70b, 70 are prevented from floating when the stamp frame 72 is inserted.
This has the advantage that there is no problem that the guide piece 72d collides with the guide piece 72d and obstructs insertion, and the assembly work is extremely easy.

The present invention can be applied to printers having any type of stamp device other than the illustrated printer, and can also be applied to stamp devices other than printers.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an example of a printer suitable for incorporating the present invention, Fig. 2 is a rear view of the stamp holding member of the printer shown in Fig. 1, seen from the rear side, and Fig. 3 is the back side of the stamp frame. 4 is a back view showing the stamp frame assembled to the holding member, and FIG. 5 is a side view seen from the left side of FIG. 4. DESCRIPTION OF SYMBOLS 1... Printer main body, 42... Stamp device, 43... Support member, 43 a...
Support spherical surface, 44... Stamp holding member, 45.
...Guide member, 51 ... Stamp operation lever, 53 ... Electromagnetic solenoid.

Claims (1)

[Scope of utility model registration request] A spherical recess is provided on the back surface of a stamp frame incorporating a stamp piece for stamp printing, and an elastic support member having a supporting spherical surface that fits into the four spherical parts is attached to the stamp holding member, and the guide piece of the stamp frame is attached to the stamp holding member. The stamp frame is slid between the guide projections and the support spherical surface by sliding the stamp frame laterally relative to the stamp holding member while aligning the stamp frame along at least two guide projections, and fitting the spherical recess into the support spherical surface. In the stamp holder holding device for a printer, which is configured to attach the stamp frame to the stamp holding member by inserting the stamp frame into the stamp holding member, the stamp frame is slidably fitted to the support spherical surface when sliding in the lateral direction, thereby preventing the stamp frame from floating. A holding device characterized in that a horizontal long groove for blocking is provided on the back side of a stamp frame.