JPS59216369A - Stamping device - Google Patents

Abstract

PURPOSE:To prevent drying of a carved seal face and excess of ink by providing a cap which blocks always the stamp carbed face of a stamping device, which puts a mark indicating that an original is already transmitted in facsimile or the like, and is removed in accordance with the sealing operation. CONSTITUTION:A carved seal face 7a of a stamp 7 is always turned down and is held, and a cap 21 blocking the face 7a is provided on a cap bracket 22; and when an operation instruction is issued to the stamping device, a plunger 18 is operated to raise a rack 17. Then, a control piece 25 rises together with the rack 17 and is detached from the bracket 22, and the bracket 22 falls by its own weight, and the cap 21 is removed from the stamp 7. A pinion 16 is rotated in accordance with rise of the rack 17, and the stamp 7 is rotated, and a guide pawl 19 is brought into contact with a stopper 20, and the rotation is stopped, and the pinion 16 rises together with the rack, and the stamp 7 is moved toward a table 8 to seal an original 1. After sealing, the rack 17 is drawn down by the plunger 18, and the stamp 7 falls and is returned to the original position.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a stamp device for facsimile machines, copying machines, and the like. - Prior Art Conventionally, in facsimile reading devices and automatic document feeders in copying machines, a predetermined mark such as "Done" is stamped on the document in order to clearly distinguish between sent and copied documents and unsent documents. Some are equipped with a stamping device. However, in such a stamp device, since the stamp surface of the stamp is always open, the impregnated ink tends to dry out.

As a result, when the stamp is used intermittently or not used for a long period of time, such as when using a facsimile, the stamp surface dries out, making it impossible to stamp properly. Also,
Not only does the ink dry, but the appropriate amount of ink does not penetrate the stamped surface, resulting in chipped or partially faded stamps, making it impossible to stamp properly. Furthermore, if the stamp is placed on standby with the stamp facing down, the amount of ink will be too large, resulting in ink bleeding or dripping.

OBJECTS The present invention has been made in view of the above points, and an object of the present invention is to provide a stamp device that can prevent drying of the engraved surface of the stamp and prevent excessive ink from occurring, and can always perform proper stamping.

composition An embodiment of the present invention will be described based on the drawings.

First, FIG. 1 schematically shows a facsimile reading device to which the present invention is applied, in which a document 1 is placed on a target glass 2.
, when entering the stamp section by the joint roller 5 while passing through the holding plate 3 and being read by the reading section 4, an OK signal indicating completion of reception is received from the receiving side, and the sensor 6
When the leading edge of the document is detected, the stamp 7 rises toward the stamp stand 8, and a predetermined mark such as "Done" is stamped on the leading edge of the document 1. The document 1 is then discharged onto a tray 10 by a discharge roller 9. If the reception OK double signal is not output, it is considered a bad document and will not be stamped.

Here, the stamp 7 is clamped and fixed by two holders 11 and 12, and a shaft 13 is fixed to the holder 11. This shaft 13 is supported between the long holes of the support plate 14 and the stamp guide plate 15 so as to be rotatable and vertically movable, and a pinion 16 is fixed on the shaft 13.

A plunger 18 is provided below for vertically moving a rack 17 that engages with this pinion 16 at its lateral portion.

Further, a guide claw 19 is formed at the bottom of the holder 11,
A stopper 20 for regulating the guide claw 19 is formed on the stamp guide plate 15.

Thus, the stamp 7 is always on standby with its stamping surface 7a facing downward, and a cap 21 is provided on a cap bracket 22 to close this stamping surface 7a. As shown in FIG. 3, this cap 21 is formed of a foamed rubber layer 21b based on a solid rubber layer 21a.

In addition, the cap bracket 22 is connected to the plunger case 23.
The cap bracket 22 (cap 21) tends to rotate downward because the position of the pin 24 is eccentric.

A regulating piece 25 that regulates the cap bracket 22 in a horizontal state is fixed to the rack 17. 26 is a stopper.

In such a configuration, FIGS. 1 and 5 show a standby state (steady state), and the engraved surface 7a of the stamp 7 faces downward, and this engraved surface 7a is closed by the cap 21. Since it is covered by the cap 21 in this way.

Drying of the ink on the stamping surface 7a is prevented.

At this time, the foamed rubber layer 21b provides good adhesion to the stamp 7, and the solid rubber layer 21a applies a constant pressure, making it even more effective. Furthermore, when ink is replenished into the stamp 7, a large amount of ink tends to penetrate into the stamping surface 7a, but this is somewhat adjusted by the foamed rubber layer 21b, so that no ink bleeds or ink drips when stamping. Always maintain the best condition.

Next, the stamping operation will be explained. First, when an operation command is issued to the stamp device, the plunger 18 operates to raise the rack 17. As a result, the regulating piece 25 also rises together with the rack 17 and comes off the cap bracket 22, the cap bracket 22 is rotated downward due to its own weight and is regulated by the stopper 26), and the cap 21 is retracted from the stamp 7. On the other hand, rack 17
With the upward displacement of the pinion 16, the pinion 16 rotates, and the shaft 1
The stamp 7 rotates due to the rotation of the stamp 3.

When rotated approximately 180 degrees, the guide pawl 19 moves to the stopper 20.
However, as the rack 17 continues to rise, the pinion 16, which is engaged with the rack 17 and becomes fixed in the rotational direction, is displaced upward together with the rack 17. As a result, the stamp 7 facing upward is displaced linearly upward toward the stamp stand 8, and a stamp is made on the document l. Such linear movement and the printing pressure at this time are regulated by the guide claw 19 and the stopper 20.

When the stamping on the document 1 is completed, the operation is reversed, the rack 17 is pulled downward by the plunger 18, and the stamp 7
After a slight downward displacement in a straight line, it returns to its original position (FIG. 5) by rotational movement and enters a standby state.

According to this embodiment, the stamp surface 7a of the stamp 7 is always closed by the cap 21 and faces downward in the standby state, so even if the standby state becomes long,
Since an appropriate amount of ink always permeates the marking surface 7a, there is no drying of the ink, and the marking surface 7a is always waiting in the best condition, so that a clear stamp can be made. Furthermore, less evaporation of ink means that wasteful consumption of ink can be prevented.

In this embodiment, the stamp 7 is always facing downward, and when stamping, the rotation/linear movement mechanism is used to turn it upward and stamp. However, the stamp is always facing upward, and its stamping surface is closed with a camp to seal the stamp. The camp 7 may be evacuated to the side when ascending. In addition, the ink used for Sudump 7 is not limited to regular red ink.
It is also possible to use a dropout color (yellow, pink, etc.) or erasable ink, so that after being stamped on a document, the predetermined mark is erased over time, so that the document can be reused.

By the way, in this type of stamp device, there is generally only one stamp, and if it is frequently used, the ink replenishment cycle is short, and the ink amount needs to be adjusted (breaking-in work) when refilling the ink. shall be. The loss time for these operations is large. In addition, stamp replacement work becomes more frequent due to wear of the stamping surface. Furthermore, when it is desired to change the contents of the seal, the stamp must be replaced each time, which is troublesome. However, if a plurality of stamps 30 (for example, four stamps) are used as shown in FIGS. 7 to 9, the problem can be improved. First, there are four stamps 30 and a guide plate 3 on the shaft 31.
2 and a ratchet 33 with a screw gear are fixed, a ratchet 34 with a fixing pin is always pressed against the ratchets 1 to 33 by a spring 35, and these are connected to an interlocking bracket 36.
is incorporated into. The ratchet 1-34 is fixed to the interlocking bracket 36 by a fixing pin 37, and has a degree of freedom in the vertical direction, but not in the rotational direction. These are assembled into a fixed bracket 38, and the interlocking bracket 36 is constantly pulled downward by a spring 39. Here, a shaft 4I with a threaded gear connected to a motor 40 meshes with the threaded gear of the ratchet 33, and a series of operations are performed by rotating the shaft 41 with the motor 40. 42 is a manual knob.

The operation will be explained with reference to FIG.

First, FIG. 2A shows the process of stamping. When the motor 40 rotates the shaft 41 in the direction of the arrow, the ratchet 33 causes the shaft 41 to rotate in the direction of the arrow (indicated by the dotted line). However, since rotation in this direction is restricted by the ratchet 34, the entire interlocking bracket 36 moves upward as shown by the arrow. In other words, a certain stamp 30 also moves upward at the same time, and stamps the document 43 as shown in FIG. 4(b). At this time,
A convex portion 44 of the guide plate 32 is guided by a guide 45 on the fixed bracket 38, and serves to guide the stamp 30 in a fixed direction. After stamping is completed, the same figure (c)
As shown in (b), the motor 40 rotates in the opposite direction, and the interlocking bracket 36 moves downward with the pulling action of the spring 39. There is a degree of freedom in which the ratchet 33 attempts to move in the opposite direction and a degree of freedom in which the ratchet 33 attempts to rotate counterclockwise, but the spring 39 gives priority to the movement of the interlocking bracket 36 downward.)

By further rotating the motor 40, as shown in FIG.
Rotate the ratchet 33 and stamp 30 counterclockwise (in the direction of the arrow) as shown in FIG. At this time, Ratchet I.
If the pawl 33 pushes the ratchet 34 laterally and rotates the motor 40 until it engages with the next pawl, the result will be as shown in Figure (a).
The state shown in is reached. At this time, the stamp 30 is replaced with the next one, and by repeating this operation, the stamping operation is performed while changing the four stamps 30 one after another.

Therefore, for example, if the ink replenishment cycle for one stamp 3o is three months, in the case of the one-stick system, four stamps 30 are used alternately, so the ink replenishment cycle is four times as long as 12 months in total.

The loss time and break-in work associated with ink replenishment can be relatively reduced to 174 hours. In addition, the replacement cycle due to the lifespan of the stamp is increased by four times, and the position adjustment work due to stamp replacement is also reduced by 1/4.

When all four stamps 30 are to be replaced, if the stamp and its holder are made into a unit, the stamp can be replaced with a single touch, eliminating the need for one-position adjustment. In addition, if the contents of the stamp 30 are not the same, but each stamp is different, several types of stamps can be made.

In this case as well, the desired stamp 30 may be selected by rotating the motor 40, or may be selected using the manual knob 42.

Note that even in such a multiple stamp system, the ink replenishment cycle can be further extended by providing retractable caps for individual stamps.

Effects As described above, the present invention is provided with a cap that constantly closes the engraved surface of the stamp and retracts in conjunction with the stamping operation, so that the ink can be impregnated with an appropriate amount of ink while preventing the ink from drying on the engraved surface. , it is possible to always perform a clear stamping operation.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention,
Fig. 1 is a schematic side view of the applied device, Fig. 2 is a side view, Fig. 3 is a longitudinal sectional front view showing an enlarged portion of the device, and Fig. 4 is a front elevation showing an enlarged portion of the device. Figures 5 and 6 are front views, Figures 7 to 9 show other application examples, Figure 7 is a partially cutaway side view, and Figure 8 is a partially cutaway side view. An enlarged front view is shown, and FIGS. 9(a) to 9(d) are side views showing the operation. 7... Stamp, 7a... Engraved surface, 21... Cap Applicant: Ricoh Co., Ltd. - ] Figure 5] q Ray q diagram

Claims (1)

[Claims] A stamp device for stamping a predetermined mark on a sent document or the like in order to distinguish it from an unsent document, etc., characterized in that a cap is provided that constantly closes the stamp surface of the stamp and retracts in conjunction with the stamping operation. Device.