JPH0929688A - Recording device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording device capable of shutting off the cutting sound of a cutter without impairing the functions of the cutter and a device main body. SOLUTION: A cutter mechanism 18 is arranged close to the outlet of a recording paper sheet 11, the recording paper sheet 11 is cut by the movement of a round cutter 186, a shutter 212 for sealing the outlet is provided in the outlet so as to be freely opened/closed, the shutter 212 is closed during cutting by the round cutter 186 associating with the movement of the round cutter 186 of the cutter mechanism 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording device such as a facsimile device, a copying machine, a printer device, etc., and particularly to a recording device using a roll-shaped recording paper and having an automatic cutter near a paper discharge port. Regarding

[0002]

2. Description of the Related Art As is well known, a recording apparatus using roll-shaped recording paper generally has a hopper or a spool for supporting the recording paper, a decurling mechanism for removing the curl of the recording paper, and a conveyance for conveying the recording paper. A roller (printing roller), a thermal head that is pressed by a transport roller with a spring, a transport guide that guides the transport of recording paper, and a cutter mechanism, and printing is performed by the thermal head.

By the way, in the conventional recording apparatus as described above, it is often the case that the recording sheet cut by the cutter is cut off without providing an outlet roller at the outlet of the recording sheet. The cutter mechanism has a method of cutting by swinging one of two long blades and a method of moving by rotating a round blade from one end to the other end of one long blade. is there.

In the conventional recording apparatus, whichever of the above-mentioned cutters is used, the cutter is arranged near the exit of the recording paper. Therefore, the soundproof effect against the sound of the cutter cutting the recording paper cannot be expected. The noise when the cutter cuts the recording paper reaches 60 dB to 70 dB. Even a noise of about 1 second is very loud in a general household.

Of the above cutters, this noise is louder in the swing type. If you want a sound-proof effect for the cutter, you can reduce the noise by slowing the cutting speed, but if you cut at a low speed, the bending of the paper and the strength of your waist will lower the cutting accuracy and it is likely that jamming will increase. . Further, in the case of a facsimile machine, if the cutting speed of the cutter is slowed down, the communication standby time becomes extremely long and the communication time becomes long.

[0006] Further, when the recording apparatus is requested to take measures against noise,
The device normally waits with power on, and is in a situation where it is not known when the chart paper will come out of the exit.
Therefore, in order to prevent noise from coming outside,
It is necessary to insert the cutter deep inside the device, but in this case, a discharge roller for discharging the cut paper must be added.

On the contrary, there is a means for closing the outlet only when the cutter performs the cutting operation, but a separate shutter and a driving means for opening and closing the shutter are required, which is low in cost. Therefore, this noise is left without any measures.

[0008]

As described above, in the conventional recording apparatus using the roll-shaped recording paper, the noise prevention measure due to the cutting noise of the cutter when cutting off the recording paper is insufficient.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to provide a recording apparatus capable of insulating the cutting noise of the cutter without impairing the functions of the cutter and the main body of the apparatus.

[0010]

A recording apparatus according to the present invention for solving the above-mentioned problems is a recording apparatus using roll-shaped recording paper, which is arranged in the vicinity of a paper discharge port and moves the recording paper with a round blade. A cutter mechanism for cutting by means of the shutter mechanism, a shutter mechanism for opening and closing the discharge port to close the discharge port, and a shutter mechanism for cutting the cutter mechanism with a round blade to close the shutter and returning the round blade. And a shutter opening / closing control mechanism for opening the shutter.

In the present invention, a shutter mechanism is provided at the discharge port as a means for reducing the cutting noise of the cutter. The feature of the present invention resides in the opening / closing operation means of the discharge port shutter.

That is, the cutter mechanism is disposed close to the sheet discharge port, the recording paper is cut by the movement of the round blade, and a shutter for closing the discharge port is provided at the discharge port so as to be openable and closable. In conjunction with the movement of the, the shutter is closed when cutting with the round blade, and the shutter is opened when the round blade is returned.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

1A and 1B show the construction of a recording paper (roll paper) discharge cutting mechanism section of a recording apparatus according to the present invention. FIG. 1A shows a state where a shutter is open, and FIG. 1B shows a state where the shutter is closed. It shows the state. 2 shows the cutter mechanism and the shutter mechanism taken out.

In FIG. 1, the recording paper 11 is a hopper 12.
Printing is performed by the thermal head 15 that is placed on the sheet, is transported by the transport roller 13 that is rotated by a drive mechanism (not shown), and is pressed against the transport roller 13 by the spring 14. The curl of the recording paper 11 is removed by the decurling shaft 16 by the pulling force of the transport roller 13 and the tension due to the back tension due to the own weight of the recording paper 11.

The printed recording paper is used as a paper guide 17
A discharge port 20 formed on the side surface of the upper cover (or frame) 19 guided by the cutter mechanism 18 by the cutter 20.
It is further discharged, cut into an appropriate length by the cutter mechanism 18, and cut off. A shutter mechanism 21 is arranged below the discharge port 20.

In the cutter mechanism 18, as shown in FIG. 2, a rail portion 181 is fixed to a cutter frame 180 attached to a main body frame (not shown). The fixed blade 182 is placed on the rail portion 181. A carriage 183 is provided on the rail 181 so as to be movable in the longitudinal direction. This carriage 183
Although not shown in detail, is driven by a cutter motor 184.

An arm portion 185 is fixed to the side surface of the carriage 183, and a round blade 186 and a round blade base 187 for rotationally driving the round blade 186 are fixed in the arm portion 185.
Is provided. The end portion of the arm portion 185 functions as a shutter russel that engages with a shutter release lever described later to open and close the shutter.

The shutter mechanism 21 has a shutter 212 attached to a shutter frame 211 attached to a main body frame (not shown) as shown in FIG.
Is inserted, and the shutter 212 is pushed upward (in the direction in which the discharge port 20 is closed) by a spring 213 provided inside, and is brought into contact with the upper end surface of the discharge port 20.

A discharge port 2 is provided above the shutter 212.
A cushion 214 is provided so as not to damage the recording paper 11 when it comes into contact with the upper end surface of 0, and one end of the cushion 214 comes into contact with the end of the arm portion 185 of the cutter mechanism 18 to move the shutter 212 up and down. Shutter release lever 2 movable to
15 is integrally formed.

In FIG. 2, the direction A is the cutting direction, the direction B is the return direction, and the direction C is the recording paper discharge direction.

In the above structure, the cutter mechanism 1 will be described below.
8 and the operation of the shutter mechanism 21 will be described.

When the cutting operation of the cutter mechanism 18 is started,
As shown in FIG. 2, the round blade table 187 moves in the opposite direction from the round blade table standby side (the side on which the cutter motor 184 is arranged). At this time, the recording paper 11 is supported by the fixed blade 182 and the round blade base 187, and is cut by the round blade 186 that moves while rotating in accordance with the movement of the round blade base 187.

The cutter mechanism 18 includes a round blade base 187.
An arm portion 185 that connects the carriage 183 with the carriage 183 is provided. The end portion of the arm portion 185 functions as a shutter release raschel for further opening and closing the shutter 212.

Therefore, when the circular blade base 187 returns to the standby side, the end of the arm portion 185 pushes down the shutter 212 via the shutter release lever 215. When the round blade base 187 is completely returned, the shutter release Russell function of the arm portion 185 causes the shutter 212 to reach the release position, and the shutter 212 is released to the predetermined position.

The cutter mechanism 18 operates and the shutter 2
When 12 is closed, it becomes like FIG.1 (b). The cushion 214 prevents the recording paper 11 from being torn, scratched, or wrinkled, and at the same time prevents generation of an impact sound when the shutter is closed.

That is, in this embodiment, as a means for reducing the cutting noise of the cutter, a shutter mechanism is provided at the discharge port. The feature of the present invention resides in the opening / closing operation means of the discharge port shutter.

As the cutter mechanism 18, a circular blade (moving blade) 186 pressed against a long fixed blade 182 moves from one end of the fixed blade 182 to the other end while rotating to move the other end of the fixed blade 182. Use a blade. A shutter mechanism 21 that opens and closes by vertical movement is provided either integrally with the cutter mechanism 18 or in a part of the recording device.

In the cutter mechanism 18, the carriage 183
And the circular blade base 187 are connected by the arm portion 185. When the carriage 183 returns to the standby position, the arm portion 1
The edge of 85 pushes the shutter 212 open, and the recording paper 11
Open the discharge port of. Conversely, the cutting operation causes the carriage 18
3 moves, the engagement with the arm 185 that pushes the shutter 212 open is released.
12 closes.

There are restrictions on the direction in which the arm portion 185 is extended. The principle is described in the invention of Japanese Patent Application No. 5-268557 "Cutter mechanism". The shape of the arm portion 185 can be arbitrarily determined as long as it is within the range of this restriction (a shape in which the cutting end is guided tangentially to the round blade 186 from the cutting point).

As described above, the point of this embodiment is that the cutter mechanism 18 is used as the driving means for the opening / closing operation of the shutter 212.
The use of the moving blade transport mechanism of

Therefore, the recording apparatus having the above structure can block the cutting sound of the cutter without impairing the functions of the cutter and the main body of the apparatus.

Although the shutter frame 211 is handled as a single part in the above embodiment, it may be integrated with the frame of the recording apparatus. Although the cushion 214 is provided as a measure for preventing various obstacles as described above, it is not always necessary.

The round blade type cutter mechanism required for the above mechanism may have a structure as shown in FIG. 3, for example. FIG.
2, the same parts as those in FIG. 2 are designated by the same reference numerals,
Here, different parts will be described.

FIG. 3 shows the case as viewed from below contrary to FIG. In this structure, the round blade base 188 is formed integrally with the carriage, and the arm 1
89 is extended, and its tip is formed as a shutter release Russell. With this structure, it can be easily inferred that the shutter opening / closing operation can be realized without the arm portion 185 connecting the round blade base 187 and the carriage 183 as shown in FIG.

As described above, the implementation means of the present invention can be realized by various specifications by using the well-known technology, and is not limited to the present embodiment.

For example, the opening / closing operation of the shutter 212 is
A rotary type as shown in FIG. 4 is also possible. In FIG. 4, the same parts as those in FIG. 2 are designated by the same reference numerals and the description thereof will be omitted.

In FIG. 4, support shafts 216a and 216b are formed at both ends of the shutter 212, and the support shafts 216a and 216b are rotatably supported by a lower frame of a recording device (not shown). One support shaft 21
6a is provided with a torsion coil spring 217, which causes the shutter 212 to be pressed against the upper frame of the recording device (not shown).

On the other hand, the round blade table 187 has a shutter release raschel 1810 formed on its side surface. When the round blade base 187 returns to the standby position, the shutter release russel 1810 pushes the shutter 212 by a predetermined angle via the shutter release lever 215.

Therefore, also with the above structure, the same effect as that of the previous embodiment can be obtained.

[0041]

As described above, according to the present invention, it is possible to provide a recording apparatus capable of interrupting the cutting noise of the cutter without impairing the functions of the cutter and the main body of the apparatus.

[Brief description of drawings]

FIG. 1 shows the configuration of a recording apparatus according to an embodiment of the present invention,
It is sectional drawing of the state (a) with a shutter open, and the state (b) with a shutter closed.

FIG. 2 is a perspective view showing structures of a cutter mechanism and a shutter mechanism of the embodiment.

FIG. 3 is a perspective view showing another embodiment of the cutter mechanism used in the recording apparatus of the present invention.

FIG. 4 is a perspective view showing still another embodiment of a cutter mechanism and a shutter mechanism used in the recording apparatus of the present invention.

[Explanation of symbols]

 11 Recording Paper 12 Hopper 13 Conveying Roller 14 Spring 15 Thermal Head 16 Decal Shaft 17 Paper Guide 18 Cutter Mechanism 180 Cutter Frame 181 Rail Part 182 Fixed Blade 183 Carriage 184 Cutter Motor 185 Arm Part 186 Round Blade 187 Round Blade Stand 188 Round Blade Stand (Carriage) 189 Arm 1810 Shutter release Russell 19 Upper cover (or frame) 20 Ejection port 21 Shutter mechanism 211 Shutter frame 212 Shutter 213 Spring 214 Cushion 215 Shutter release lever 216a, 216b Spindle 217 Torsion coil spring

Claims (3)

[Claims] 1. A recording apparatus using roll-shaped recording paper, comprising: a cutter mechanism disposed in proximity to a paper discharge port for cutting the recording paper by moving a round blade; and a shutter for closing the discharge port at the discharge port. A shutter opening / closing mechanism, and a shutter opening / closing control mechanism that closes the shutter when the cutter mechanism cuts it with a round blade and opens the shutter when the round blade returns. Recording device. 2. The shutter opening / closing control mechanism forms a shutter release russel in a part of a round blade movable part of the cutter mechanism, and engages the shutter release russel at an end of the shutter to open the shutter. 2. The recording apparatus according to claim 1, wherein the shutter release lever for setting the state is integrally formed. 3. The recording apparatus according to claim 1, wherein the shutter mechanism has a cushion arranged at a contact portion of the shutter with the discharge port portion.