JPS5812185B2 - recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a recording device that uses folded recording paper, particularly a recording device 1 that is improved so that recorded folded recording paper can be neatly folded and stored in a receiving box.
This is related to this.

A recording device is often used in which a recording paper folded into a bellows shape is fed out from a supply box for recording, sent to a receiving box, and stored while being folded by folding the recording paper in the same way as when it was first folded.

The apparatus shown in FIG. 1 is a conventional example of a recording apparatus that employs this type of system.

In this device, unused recording paper 2 stored in a supply box 1 is continuously fed out by a feeding sprocket 3, and recording is performed by a recording pen 4.

After the recording is completed, the recording paper 2 is sent to the back of the recording device and fed into the receiving box 6 by a feeding sprocket 5 attached to the receiving box in the vicinity of the entry of the sun.

Since the recording paper 2 is neatly folded while being stored in the supply box and the folds are usually perforated, the recording paper itself has considerable creases.

Therefore, the recording sheets 2 fed into the receiving box 6 are normally folded and stored one after another according to the folding pattern.

However, if the recording paper is not sufficiently folded or if the recording apparatus is operated in a hot and humid environment, the reliability of the folding may be impaired.

For this reason, the mountain fold line 7, which should originally be bent as shown by the solid line A in FIG. 1, ends up being bent in the opposite direction, that is, as shown by the chain line B.

One of the conventional examples is a recording device disclosed in Japanese Patent Publication No. 52-36702.

This device is certainly an improvement in that it increases the storage capacity of recording paper by storing the recording paper in a small capacity storage chamber in close contact with each other. Similar to the recording device shown in Figure 1, storage depends on the folds of the recording paper and the hardness of the paper, and reliable folding cannot be expected in the hot and humid environment mentioned above. There remains a technical problem.

Efforts have therefore been made to improve recording devices to ensure that the recording paper can be folded reliably, but it has been difficult to achieve something that is completely satisfactory.

The reason for this is that if the recording device is structured so that the peak fold lines of the recording paper can be folded reliably, the valley fold lines (folding in the opposite shape to the peak fold) will become uncertain, and the valley fold lines will be folded reliably. This is because if such a structure is used, the problem arises that the bending of the mountain line becomes uncertain, and it is difficult to improve the bending of both lines.

SUMMARY OF THE INVENTION An object of the present invention is to provide an improved recording apparatus that can reliably cause mountain folds and valley folds in recording paper fed into a receiving box.

The present invention will be described with reference to the accompanying drawings. FIG. 2 shows an embodiment in which the present invention is applied to a recording device similar to that shown in FIG. 1.

This device has a blade 9 which is loosely fitted onto the shaft 8 of a retraction sprocket 5 near the entrance of the receiving box 6 and is swingable.

In order to easily fold and feed the recording paper 2 near the entrance of the receiving box 6, the blade 9 has an edge portion 9a (see FIG. 3) defined in an appropriate straight or curved shape, and is directed toward the receiving box 6. It is made of a flat plate having a protruding convex part 9b, and has a first position, that is, a position where the convex part 9b extends beyond the wall 11 of the receiving box to the inside of the receiving box 6, and a second position, that is, a retracted position. You can pivot between.

These first positions refer to the blade positions shown in solid lines in FIG. 2, and the second positions refer to the blade positions shown in dashed lines.

The swinging movement of the blade 9 is performed periodically and in synchronization with the advance of the recording paper 2 by a drive mechanism to which the blade 9 is connected.

For example, when the recording paper 2 is folded in so as to be folded along its peak fold line 7, the blade 9 protrudes into the receiving box 6 and assumes the first position, and feeds the recording paper 2 in the direction of arrow A.

Thereafter, the blade 9 gradually retreats, and when it is retracted into the receiving box 6 at the next valley fold line 10, it has completely retreated to the outside of the receiving box wall 11.

Therefore, the recording paper 2 fed into the receiver box 6 by the feeding sprocket 5 slides on the inner surface of the wall 11 of the receiver box, moves in the direction of arrow B, and performs a valley folding operation.

In this way, by pivoting the blade 9 around the axis 8, the recording paper 2 can be fed in the direction most suitable for the fold line 7 or 10 of the recording paper, respectively.
Even when the folding of the recording paper is very weak, the recording paper can be neatly folded in the correct direction and the recording paper can be stored in good condition.

3 and 4 show the operation of the blade 9 and the drive mechanism that moves it.

As is clear from Figure 4, the retraction sprocket usually
Two or more are attached to both ends of the shaft (symbols 5, 5
′) allows both edges of the recording paper to advance at the same speed.

The retraction sprockets 5 and 5' each have a gear portion 12 having an outer diameter smaller than its diameter.

Also, the retracting sprocket 5' is connected to the retracting sprocket 3 (
It is connected to a drive source by means such as a connecting gear 13 so that it can rotate at the same circumferential speed as in FIG. 1), and is further maintained at a constant rotational speed by a clock mechanism (not shown).

Further, the gear portion 12 provided on the upper sprocket 5 meshes with the driven gear 14 to which the pin 15 is attached to rotate it, but the rotation ratio is such that the recording paper 2 is stretched over a length twice as long as the distance between the folding lines. The value is set to such a value that the driven gear 14 rotates once when the vehicle is advanced that far.

A slit 16 is formed in the blade 9, and a pin 15 on the driven gear 14 fits into this slit.

When the driven gear 14 rotates in response to the driving force from the shaft 8, the pin 15 revolves around the axis of the driven gear 14 and reciprocates along the slit 16.

Therefore, the blade 9 pivots around the axis 8 within an angle α, as shown in FIG. 3a, and assumes a first position (FIG. 3a) and a second position (FIG. 3b). .

As already mentioned, the rotation ratio between the gear portion 12 and the driven gear 14 is such that the rotation ratio between the gear portion 12 and the driven gear 14 is as follows:
Since the blade 9 corresponds to one rotation of the recording paper 2, the blade 9 pivots in synchronization with the fold line of the recording paper 2 and protrudes or retracts into the receiving box 6.

Note that it may not be sufficient to attach only one blade 9 to properly advance the recording paper 2 within the receiving box 6.

Therefore, it is preferable to provide a pipe 17 that is loosely fitted to the shaft 8, and to which a plurality of blades 9', 9'' are fixed at intervals in the longitudinal direction, so that all the blades pivot simultaneously.

Further, as described above, when the recording paper 2 is folded in to be folded along the mountain fold line 1, the blade 9 takes the first position, and when the recording paper 2 is folded in to be folded along the valley fold line 10, the blade 9 is in the first position. In order to set the blade to take the second position, it is necessary to match the angular position of the blade with the fold line position of the recording paper.

However, this operation can be carried out in various ways.

For example, when newly loading recording paper into the supply box 1, first move the blade 9 to the second position (the position indicated by the chain line in Figure 2).
, and then set the fold line of recording paper 2 (it is necessary to decide at the beginning whether to use the mountain fold line or the valley fold line as a reference) on the mark placed at an appropriate position on the record paper transport section in the device. You can easily synchronize by setting the recording paper accordingly.

In this way, once the recording paper is set, there will be no accident in which the advance of the recording paper and the pivot movement of the blade become out of order.

As explained above, according to the present invention, even if the folding paper is extremely weak, it is possible to properly fold the folded recording paper and store it in the receiving box without having to reverse fold it. A recording device was realized.

As a result, the trouble of recording paper jamming in the receiving box can be significantly reduced, and as a result, a large amount of recording paper can be stored in the receiving box.
We were able to increase the storage capacity of the recording device.

In the above-described embodiment, the blade 9 is loosely fitted onto the shaft 8 and this shaft 8 is used as a pivot point for the blade 9, or another shaft is provided near the shaft 8 parallel to this shaft 8. established,
The blade 9 may be loosely fitted onto this shaft, and this shaft may be used as a swinging fulcrum for the blade 9.

Alternatively, the shaft may be rotatably supported by the housing of the recording device, and the blade 9 may be fixed to this shaft.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the internal structure of a conventional recording device. FIG. 2 is a plan view showing the internal structure of the recording apparatus of the present invention. FIG. 3 is an explanatory diagram showing the blade and its drive mechanism in the present invention, where a shows the blade in the first position and b shows the blade in the second position. . FIG. 4 is a view of the state of FIG. 3a viewed in the direction of the arrow. Explanation of symbols, 1...supply box, 2...recording paper, 3...
・Feeding sprocket, 4... Recording pen, 5... Retracting sprocket, 6... Receiving box, 7... Mountain fold line,
8...axis, 9...blade, 10...valley fold line,
DESCRIPTION OF SYMBOLS 11... Wall of receiving box, 12... Gear part, 13... Connecting gear, 14... Driven gear, 15... Pin, 16...
...Slit, 17...pipe.

Claims (1)

[Scope of Claims] 1. A recording device using folded recording paper, which includes a receiving box for storing recorded recording paper, and a receiving box provided near the entrance of the receiving box for feeding the recording paper into the receiving box. It consists of a retractable sprocket, a swingable blade with a slit, a driving gear provided on the sprocket, and a driven gear with a pin that meshes with this driving gear. The pin loosely fits into the slit of the blade to transmit the rotational force of the shaft of the sprocket to the blade, thereby moving the blade from a first position protruding into the receiver box to a retracting position outside the receiver box. and a second position, and the pivot movement is performed in synchronization with the rotation of the sprocket at a rate of one cycle while the recording paper travels a distance twice the width of the fold line. A recording device characterized by: 2. In the recording device according to claim 1, in order to match the advancing position of the folding line of the recording paper with the pivot movement position of the blade, an index for setting the recording paper is marked in the recording paper transport path. A recording device characterized by: 3. The recording device according to claim 1 or 2, wherein the blade is loosely fitted onto the shaft of a sprocket, and this shaft is used as a pivot point for the blade. 4. In the recording device according to claim 1 or 2, the blade is attached to another shaft provided near the axis of the sprocket and parallel to this axis, and this axis serves as the swing fulcrum of the blade. A recording device characterized in that it is used as a.