JPH0315576A - Paper feed device in recording apparatus - Google Patents

Abstract

PURPOSE:To correctly plot a visual image without paying any particular attention to the outer peripheral vibration of rollers during the rotation thereof by driving a driving roller which holds a recording paper in elastic contact therewith, a pinch roller and a pair of driven rollers which support a plotting face belt at the same peripheral velocity. CONSTITUTION:A recording paper 1 is held in elastic contact with driving rollers 10, 12 and pinch rollers 9, 11. When the driving rollers 10, 12 are coupled to the pinch rollers or rotated by a paper feed motor 5, the recording paper 1 is moved. A transmission belt 18 is wound around the driving rollers 10, 12, so that the driving rollers 10, 12 are interlocked with a first driven roller 16. An endless face belt 19 is stretched around the driven roller 16 and a second driven roller 17 which is provided confronting to the driven roller 16 with a plotting base 15 facing a recording pen 2 held therebetween. The plotting face belt 19 together with the driven roller 16 faces the same single recording paper 1, and therefore, the belt 19 is arranged to move at the same peripheral velocity so as not to cause any obstruction to the movement of the recording paper 1.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a paper feeding device in a recording device that forms a visual image by moving recording paper that does not have a moving side hole together with a recording pen. .

[Conventional technology] First, the prior art will be explained with reference to FIGS. 3 to 5.

Figure 3 schematically shows the whole of a so-called X)l recording device that forms a visual image on recording paper by moving the recording pen in the direction of the second axis of the recording plane and moving the recording paper in the direction of the first axis. FIG.

In the same figure, the Benn carriage 3 holding the recording pen 2 is slidably supported on the carriage shaft 1. It forms the second axis.

on the other hand. The recording paper 1 is elastically pinched by drive rollers 10 and 12 and pinch rollers 9 and 11 near both ends 11 and 11, respectively. A first shaft is configured by being freely moved by a paper feed motor 5 connected to the drive rollers 10 and 12.

The contact and separation of the recording pen 2 with the recording paper is performed by the vertical movement actisu
The pen carriage 3 is connected to the carriage shaft 1 via an arm 6 pen-1 two lower levers 8 connected to a shaft (not shown).
・It is also performed in response to the vertical movement caused by rotating 14 by a predetermined angle.

After a predetermined visual image is obtained, the recording paper 1 is released by separating it from the Vinci roller 91] or the drive roller 10.1.2.

The above-mentioned formation is performed by the movement of the recording paper 1 during the formation of two visual images or by the pressing friction force between the pinch rollers 9, 1l and the drive rollers 10, 11, so in order to obtain the desired visual image. In this case, care must be taken to prevent the recording paper 1 from shifting, and the recording paper 1 must be maintained in a flat state using the drawing base 15.

FIG. 4 is a longitudinal cross-sectional side view of the main part. In order to obtain A1 only at one point,
The contact friction of the recording ben 2 against the surface of the paper 5 acts to prevent the movement of the recording paper 1. When the recording paper is thin and has low rigidity. This may cause the writing paper 1 to sag, as shown by the two-dot chain line in the figure, making it impossible to produce a tM image of a correct visual image.

In order to solve this inconvenience, in the Song Dynasty, a moving force was applied to the recording paper 1 as shown in FIG. O. F at the position of ballistic contact with
. The surface of the recording paper 1 facing the recording pen 2, which receives the backslash, is not exposed. A driven roller 16 rotates at the same circumferential speed as the driving rollers 10 and 12 from the drawing base 15 which is in a stationary state.
In particular, a configuration has been proposed and put into practice that eliminates the frictional load on the contact surface of the recording pen 2 and converts it into fj power 3 to be added. (
(Japanese Patent Application Laid-open No. 59-87989, Japanese Patent Application Laid-Open No. 60-998) In such a horizontal command, the pinch roller 911 and the recording pen 2 are brought into elastic contact with the recording paper 1 at positions where they are in contact with each other in the direction of movement. Since the sliding drive rollers 10 and 12 and the driven roller 16 rotate at the same circumferential speed, the writing pressure of the recording pen 2 does not act as a resistance force against the movement of the recording paper 1, as in the example shown in FIG. No matter how much the writing pressure of the recording ben 2 changes, the influence on the recording paper 1 is avoided, and the recording paper ■
The movement and maintenance of the plane will be improved.

[Problem to be solved by the invention] By the way, in the previous article 2. The receiving surface facing the recording pen 2 is a rotating driven roller 16, and since these are used to form a cylindrical surface, the pen tip of the recording pen 2 is maintained at exactly right angles to the driven roller. If this is not done, the contact state of the pen tip with respect to the moving direction of the recording paper 1 will be unstable, resulting in a disadvantage that the accuracy of visual image drawing will be reduced.

4 In order to prevent this, the direction of the second axis, which is the operating direction F1Q of the recording pen 2, and the slave 1/coroller 1 that forms the receiving Ct surface must be
The parallelism with the axis of 6 must be strictly controlled (in addition, it is necessary to increase the dimensional accuracy of the roller that forms the receiving surface in order to eliminate the vibration of the outer circumference during circulation). He was holding a spoon.

SUMMARY OF THE INVENTION An object of the present invention is to provide a paper feeding device for a recording device that solves the above-mentioned problems of the conventional device.

[Means for Solving the Problems] The paper feeding device in the recording apparatus of the present invention includes a drive roller and a vinch roller that elastically clamp the recording paper in order to move the recording paper, and a drawing base surface facing the recording pen. From the entrainer 1, which is disposed across the front and back of the recording paper moving direction, a pair of driven rollers that support the drawing belt, and a pulley and a belt mounted thereon, or a gear train. and a coupling mechanism for operating the driven roller and the driving roller at the same circumferential speed.

In this case, the serial feed mechanism of the driven roller and the driving roller is connected to a recording device (a continuous paper feeding device) using a pulley fixed to both and a pel 1 mounted on the pulley. That is desirable.

Further, it is possible to provide a paper feeding device in a recording apparatus in which the coupling mechanism between the driven roller and the driving roller is formed by a train of wheels.

"Sakukawa" In the above-mentioned configuration, it is necessary to manage the parallelism between the second axis direction, which is the operating direction of the recording pen 2, and the axis of the driven roller 16, which marks the bearing surface, and to control the parallelism of the roller. It is possible to use a paper feeding device for J3 in a recording device that can draw an accurate visual image without requiring special consideration for the deflection of the outer periphery of the rotation II.

"Embodiments" First and second embodiments of the present invention will be explained below with reference to FIGS. 1 and 2.

Also the paper feed device in the recording device of the present invention. This is applied to a recording apparatus as shown in FIG. 3, and the movement of the recording paper is not dependent on the side hole for multi-movement, but rather the movement of the recording paper is carried out by means of a drive port=RA 10.12 and a vinyl roller 9.11 placed in pressure contact with it. This is the same as in the conventional example.

FIG. 1 is a longitudinal sectional side view of a paper feeding device according to a first embodiment of the present invention.

In the example shown in the figure, the recording paper 1 is elastically held between the drive roller 1.0.12 and the vinyl rollers 9 and 11, and the drive roller 1.
The recording paper 1 is rotated by the paper feed motor 5 connected to the drive roller 10.12, and the recording paper 1 is freely moved. It is interlocked with the driven roller 16.

The driven roller 16 and a second driven roller 17 disposed across the drawing base 15 facing the recording pen 2 mount one drawing surface l of the entres. Since the drawing belt 19 faces a single recording paper 1 together with the drive roller 16, it is configured to obtain the same circumferential speed so as not to impede the movement of the recording paper 1.

As mentioned above, the recording paper 1 which is elastically held between the drive rollers 10, 12 and the pinch rollers 7, 9 and 11 is moved by the frictional force of these elastic contact parts, and the recording paper 1 is moved at the same circumferential speed as the drive roller 1012. The recording pen 2 and the drawing belt 1 also touch the
Because the driving force is given by pressure contact with 9.
Even if the writing pressure of the recording pen 2 increases, it does not cause any resistance or damage to the recording paper 1.

FIG. 2 is a longitudinal sectional side view showing a second embodiment of the present invention, in which the means for connecting the drive ports 10 to 12 of the first embodiment (FIG. 1) and the driven roller 16 are connected to the transmission belt 18. It is distinctive in that it has been changed to a gear train instead of a drive roller 10, 1.
2, an intermediate gear 21 that engages with the drive roller gear 20, and a driven roller gear 22 that engages at another location of the intermediate gear 21 that is fixed to the driven roller 16.

A gear train. Needless to say, the driving roller 10, 12 and the driven roller 16 are configured to rotate in the same direction at the same peripheral speed. Its function is also the same as that of the first embodiment described above, so it will not be described again.

[Effects of the Invention] As described above, the paper feed device in the recording apparatus of the present invention includes a drive roller and a pinch roller that elastically pinch the recording paper in order to move the recording paper, and a drawing base surface that faces the recording pen. An endless drawing belt 1- disposed across the recording paper moving direction, a pair of driven rollers supporting the drawing belt, and a belt and a belt mounted thereon, or the driven roller consisting of a gear train. Since it is configured to include a coupling mechanism that operates the drive roller at the same circumferential speed, it has the following excellent effects.

■Special consideration must be given to managing the parallelism between the second axis direction, which is the operating direction of the recording pen 2, and the axis of the driven roller 16, which forms the receiving surface, and to the deflection of the outer periphery of the roller when it rotates. It can be used as a paper feeding device in a recording device that can draw an accurate visual image without having to do so.

■The recording paper 1, which is held elastically between the drive rollers 10, j2 and the vinyl rollers 9 and 11, is moved by the frictional force of these elastic contact parts, and the recording paper 1 is moved at the same circumferential speed as the drive rollers 10 and 12. The driving force is also applied to the contact portion due to the pressure contact between the recording pen 2 and the drawing belt 19. Even if the writing pressure of the recording pen 2 becomes high, the recording paper 1 will not experience any resistance. Not a hindrance.

[Brief explanation of the drawing]

FIGS. 1 and 2 are longitudinal sectional side views showing the first and second embodiments of the present invention, respectively. FIG. 3 is a perspective view schematically showing the entire XY recording apparatus to which the present invention and the conventional example are applied. Further, FIGS. 4 and 5 are longitudinal sectional side views showing a conventional example. 1 6 15: Drawing base 17 Two driven rollers 18: Transmission belt 19: Drawing belt 20: Drive roller gear 21: Intermediate gear 22: Driven roller gear

Claims (1)

Scope of Claims: (1) A paper feeding mechanism that allows recording paper to be moved in a first axis direction of a recording plane, a recording pen that is movable in a second axis direction perpendicular to the first axis of the recording plane, and a second axis that is perpendicular to the first axis of the recording plane; A recording device having a pen holder mechanism that is movably held in a third axis direction orthogonal to the pen holder mechanism, a drive roller and a pinch roller that elastically pinch the recording paper to move the recording paper, and a drive roller and a pinch roller that face the recording pen. An endless drawing belt disposed across the surface of the drawing base in the recording paper moving direction, a pair of driven rollers supporting the drawing belt, and the driven roller and the drive roller are operated at the same circumferential speed. What is claimed is: 1. A paper feeding device in a recording device, comprising a coupling mechanism as described above. (2) A paper feeding device in a recording apparatus according to claim 1, wherein the coupling mechanism between the driven roller and the driving roller is constituted by a pulley fixed to both and a belt attached to the pulley. (3) A paper feeding device in a recording apparatus according to claim 1, wherein the coupling mechanism between the driven roller and the driving roller is constituted by a gear train.