JP3661403B2 - Recording paper cutting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording paper cutting device such as a printer device.
[0002]
[Prior art]
Conventionally, as a cutting device for cutting recording paper, for example, a device as shown in FIG. 4 is disclosed in Japanese Patent Laid-Open No. 2-92660. FIGS. 4A and 4B are a plan view and a perspective view of a printer apparatus having a cutter blade mechanism that moves a recording sheet in the width direction of the recording sheet. FIG. 5 is a plan view of the main part when cutting the recording paper.
[0003]
According to Japanese Patent Laid-Open No. 2-92660, in FIGS. 4A and 4B, the rotary blade 14 supported by the carriage 16 moves along with the carriage 16 along the fixed blade 13, whereby the recording paper 15 The operation of cutting is performed.
[0004]
[Problems to be solved by the invention]
However, in the recording paper cutting device having the above-described conventional configuration, the recording paper 15 receives a force in the cutting direction of the paper width by the movement of the rotary blade 14, so that it tends to wrinkle at the cutting portion as shown in FIG. It had the problem of being difficult.
[0005]
Further, the wrinkled cutting of the recording paper 15 tends to be incomplete and the paper feeding function may be disabled, causing a worst-case paper jam (paper jam). This is particularly noticeable when the rigidity of the recording paper 15, that is, the stiffness of the paper is weak or weak, such as when the recording paper 15 is thin or used in a high-temperature and high-humidity environment. There were issues such as environmental constraints.
[0006]
The present invention solves such a conventional problem, and when cutting the recording paper, the recording paper at the cutting portion is less likely to wrinkle and can be cut straight, thereby reducing the possibility of paper jam (paper jam) and further recording. It is an object of the present invention to provide a recording paper cutting device with less restrictions on the paper thickness and usage environment.
[0007]
[Means for Solving the Problems]
In order to solve this problem, a recording paper cutting device according to the present invention includes a cutter blade that cuts a recording paper in the paper width direction, a carriage that supports the cutter blade and moves in the paper width direction, and supports the carriage movably. And a paper pressing means that is attached to the frame and that presses and releases the recording paper by moving the carriage. When the carriage is in the first position, the recording paper can be freely moved to other than the first position. In this case, it is constituted by a paper pressing means for pressing the recording paper against the frame.
[0008]
According to this configuration, the recording paper at the cutting portion is less likely to be wrinkled when the recording paper is cut, and straight cutting is possible, and a recording paper cutting device with less restrictions on the recording paper thickness and usage environment is obtained. It is done.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention includes a plate-shaped fixed blade, a round blade cutter that moves along the fixed blade and cuts the recording paper in the paper width direction, and supports the round blade cutter in the paper width direction. The carriage includes a moving carriage, a frame that supports the carriage movably, and a paper pressing unit that is attached to the frame and that presses and releases the recording paper by moving the carriage. The carriage is in the first position. When the recording paper is in a position other than the first position, it is composed of a paper pressing means that presses the recording paper against the frame. In addition, there is an effect that there are few restrictions on the thickness and usage environment of the recording paper.
[0010]
According to a second aspect of the present invention, in the first aspect of the present invention, the paper pressing means for pressing the recording paper in the frame direction is mounted on the frame so as to be swingable by the rotation shaft, and the urging force is applied. When the carriage is in the first position, when the carriage is in the first position, the carriage and the paper holding means are moved in the direction away from the recording paper against the biasing means. It is configured to abut, and the recording paper at the cutting portion is less likely to be wrinkled when the recording paper is cut, and can be cut straight, and there is an effect that there are few restrictions on the paper thickness and usage environment of the recording paper.
[0011]
According to a third aspect of the present invention, in the first aspect of the present invention, the paper pressing means for pressing the recording paper in the frame direction is an elastic body biased in the direction for pressing the recording paper against the frame. When the carriage is in the first position, the paper pressing unit is configured so that the carriage and the paper pressing unit are in contact with each other in a direction away from the recording paper. This makes it possible to perform straight cutting, and has the effect that there are few restrictions on the thickness of the recording paper and the usage environment.
[0012]
According to a fourth aspect of the present invention, in the invention according to the first aspect, the paper pressing means for pressing the recording paper in the frame direction applies a round blade cutter to the recording paper to cut the recording paper in the paper width direction. Since the cutting start position is pressed, the recording sheet can be cut well at the cutting start position, and only one end of the recording sheet is pressed and held, so that the configuration of the paper pressing means is simplified.
[0013]
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3.
(Embodiment 1)
FIG. 1A is a plan view showing a configuration of a recording paper cutting device according to the first embodiment of the present invention, and FIG. 1B is a perspective view of the recording paper cutting device according to the first embodiment. is there.
[0014]
FIG. 2 is an enlarged view of the paper pressing means and the carriage section in the embodiment, FIGS. 2 (a) and 2 (b) are plan views showing the operation of the carriage and the paper pressing portion, and FIG. 2 (c) is the paper pressing means. It is a perspective view which shows the lever which is.
[0015]
In FIG. 1, 1 is a plate-shaped fixed blade, 2 is a round blade cutter that cuts recording paper along the fixed blade 1, 3 is a carriage that rotatably supports the round blade cutter 2, and 4 is a linear movement of the carriage 3. A freely supported shaft, 5 is a cross lead screw for driving the carriage 3 in the paper width direction, 6 is a motor as a driving source, 7 is a gear train for transmitting the driving force of the motor 6, 8 is for fixing the fixed blade 1 and shaft 4 is a frame that fixes both ends of the motor 4, the motor 6, and the cross lead screw 5 rotatably. 9 is a paper pressing means that presses the recording paper in the arrow direction A, and swings around the rotary shaft 9 c. It is composed of an L-shaped lever attached to the frame 8 as possible. Reference numeral 15 denotes a recording paper which is sent upward from below the cutting device.
[0016]
A recording apparatus that performs printing on the recording paper 15 is disposed at a position (not shown) below the frame 8.
[0017]
2A and 2B are plan views showing in detail the relationship among the lever, the frame 8, the carriage 3, and the recording paper 15 as the paper pressing means 9, and the round blade cutter 2 is attached to the carriage 3. It is supported rotatably. Further, the paper pressing means 9 formed of a lever is also rotatably supported by a rotating shaft 9c. Further, the compression spring 10 biases the paper pressing means 9 in the clockwise direction. The recording paper 15 is located between the round blade cutter 2 and the fixed blade 1.
[0018]
FIG. 2C is a perspective view showing the paper pressing means 9.
The operation in the embodiment will be described below with reference to FIGS.
[0019]
In FIG. 1, a gear train 7 to which a driving force is applied by a motor 6 rotates the cross lead screw 5, and the carriage 3 slides on the shaft 4 and reciprocates by a groove of the cross lead screw 5. With this reciprocation, the round blade cutter 2 rotates along the fixed blade 1 and cuts the recording paper 15.
[0020]
At this time, the state of FIG. 2A shows a state where the carriage 3 is in the first position, that is, the position of the leftmost home position. The carriage 3 abuts against the paper pressing means 9 and resists the compression spring 10. Thus, the paper pressing means 9 is swung in the counterclockwise direction. Accordingly, the recording paper 15 can move freely, and printing or paper feeding can be performed freely in this state.
[0021]
Next, FIG. 2B shows the case where the carriage 3 is not in the first position, that is, when the paper is being cut, and the compression spring 10 urges the paper pressing means 9 in the clockwise direction. Since the recording paper 15 is pressed in the direction of arrow A, it does not move even if it receives a force in the paper width direction due to the movement of the round blade cutter 2, and the cut portion does not wrinkle. Accordingly, the recording paper 15 is cut straight.
[0022]
At the end of cutting, the carriage 3 returns to the original position, that is, the first position, and the carriage 3 abuts on the paper pressing means 9, so that the paper pressing means 9 is swung in the counterclockwise direction to return to the initial state.
[0023]
In the perspective view of the paper pressing means 9 in FIG. 2C, 9a is a portion that contacts the carriage 3, and 9b is a portion that presses the recording paper 15. It is appropriate that the portion 9b that presses the recording paper 15 is roughened in order to increase the frictional force against the recording paper 15, or a rubber sheet having a large friction coefficient is attached.
[0024]
As described above, according to the first embodiment, when the recording paper 15 is cut, the recording paper 15 at the cutting portion is less likely to be wrinkled and can be cut straight. The advantageous effect that there are few restrictions is obtained.
[0025]
(Embodiment 2)
3 (a) and 3 (b) show in detail the relationship between the round blade cutter 2 and the fixed blade 1, the frame 8, the carriage 3 and the recording paper 15 of the recording paper cutting device according to the second embodiment of the present invention. 11 is an enlarged plan view, and 11 is a paper pressing means composed of an elastic body provided in the frame 8. The paper pressing means 11 in the present embodiment is configured by a leaf spring, and the recording paper 15 is pressed against the frame 8 in the arrow direction A by the paper pressing means 11 formed of this leaf spring. FIG. 3C is a perspective view of the paper pressing means 11 made of a leaf spring.
[0026]
The operation in the embodiment will be described below with reference to FIG. However, since the operation of the carriage 3, the operation of the round blade cutter 2, the fixed blade 1 and the like are exactly the same as those in the first embodiment, detailed description thereof is omitted.
[0027]
The state shown in FIG. 3A shows a state where the carriage 3 is at the first position, that is, the position of the leftmost home position, and the claw 3a provided on the carriage 3 moves the paper pressing means 11 made of a leaf spring. The paper holding means 11 is lifted in the direction opposite to the arrow A shown in FIG. Accordingly, the recording paper 15 can move freely, and printing or paper feeding can be performed freely in this state.
[0028]
Next, FIG. 3B shows a case where the carriage 3 is located at a position other than the first position, that is, when the paper is being cut, and the paper pressing means 11 is biased by its own spring force, and the recording paper Since 15 is pressed in the direction of arrow A, it does not move even if it receives a force in the paper width direction due to the movement of the round blade cutter 2, and it does not wrinkle even during cutting. Therefore, the recording paper 15 is cut straight.
[0029]
Upon completion of cutting, the carriage 3 returns to the original position, that is, the first position, and the claw 3a of the carriage 3 lifts up the paper pressing means 11 to return to the initial state.
[0030]
In the perspective view of the paper pressing means 11 in FIG. 3C, 11a is a portion that is scooped up and locked by the claw 3a of the carriage 3, and 11b is a portion that presses the recording paper 15.
[0031]
As the leaf spring as the paper pressing means 11, for example, a thin plate such as a stainless steel material or a thin plate such as a thermoplastic resin is suitable. In particular, a material obtained by attaching a rubber sheet having a large friction coefficient to a plate spring made of stainless steel on the portion 11b generates a sufficient force to hold the recording paper 15 even if the urging force is reduced. There is an effect that the movement of 3 is not obstructed.
[0032]
As described above, according to the second embodiment, when the recording paper 15 is cut, the recording paper 15 in the cutting portion is less likely to be wrinkled and can be cut straight. The advantageous effect that there are few restrictions is obtained.
[0033]
Although the paper pressing means 11 in the present embodiment has been described as being above the round blade cutter 2, the same effect can be obtained even if it is located below the round blade cutter 2.
[0034]
Further, the paper pressing means 11 is configured to press the starting position of the cutting of the round blade cutter 2 into the recording paper 15 and holds the portion where the recording paper 15 is most likely to be wrinkled at the time of cutting. The entire recording paper width can be pressed and held by a lever mechanism or a link mechanism having means, and the same effect can be obtained.
[0035]
【The invention's effect】
As described above, the recording paper cutting device according to the present invention includes a plate-shaped fixed blade, a round blade cutter that moves along the fixed blade and cuts the recording paper in the paper width direction, and supports the circular blade cutter to support the paper width. A carriage that moves in the direction, a frame that movably supports the carriage, and a paper pressing means that is attached to the frame and that presses and releases the recording paper by moving the carriage. The carriage is in the first position. When the recording paper is in a position other than the first position, the recording paper is configured to include a paper pressing unit that presses the recording paper against the frame. Further, it is possible to cut straight, and there are obtained advantageous effects that there are few restrictions on the thickness of the recording paper and the use environment.
[Brief description of the drawings]
FIG. 1A is a plan view showing a configuration of a recording paper cutting device according to a first embodiment of the present invention. FIG. 2B is a perspective view of the recording paper cutting device. FIG. (B) The principal part plan view (b) The principal part plan view (c) The perspective view of the paper pressing means FIG. FIG. 4A is a plan view of an apparatus having a conventional cutting mechanism. FIG. 5B is a perspective view of a recording paper cutting unit of a conventional cutting mechanism. Plan view of the main part
DESCRIPTION OF SYMBOLS 1 Fixed blade 2 Round blade cutter 3 Carriage 4 Shaft 5 Cross lead screw 6 Motor 7 Gear train 8 Frame 9 Paper pressing means 10 Compression spring 11 Paper pressing means 15 Recording paper

Claims (4)

A plate-shaped fixed blade, a round blade cutter that cuts the recording paper in the paper width direction while moving along the fixed blade, a carriage that supports the circular blade cutter and moves in the paper width direction, and the carriage is movable A supporting frame, and a paper pressing unit that is attached to the frame and that presses and releases the recording paper by moving the carriage, and restricts the movement of the recording paper when the carriage is in the first position. A recording paper cutting device as a paper pressing means for pressing and holding the recording paper on the frame when the carriage is not in the first position.   A paper pressing means for pressing the recording paper in the frame direction is attached to the frame so as to be swingable by the rotation shaft, and is urged by the urging means in a direction to press the recording paper against the frame, so that the carriage is in the first position. 2. The recording paper cutting device according to claim 1, wherein the carriage and the paper pressing means are in contact with each other in a direction in which the paper pressing means is separated from the recording paper against the biasing means.   The paper pressing means for pressing the recording paper in the frame direction is made of an elastic body biased in the direction for pressing the recording paper against the frame, and the paper pressing means is separated from the recording paper when the carriage is in the first position. 2. The recording paper cutting device according to claim 1, wherein the carriage and the paper pressing means are in contact with each other in the direction.   2. The recording paper cutting device according to claim 1, wherein the paper pressing means that presses the recording paper in the frame direction presses the start position of the round blade cutter that cuts the recording paper in the width direction into the recording paper.

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