JPS5962198A - Recording-paper forward and reverse direction drive system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for driving recording paper in forward and reverse directions used for recording IT and the like.

Record button + i? Broadly dividing I from the recording method, it corresponds to one type of person Kai, - + bow, and the recording pen is used for long recording paper. It is driven in the X-axis direction perpendicular to the ``° direction, and the recording paper is a normal
-T-type recorder and two types of people? >Recording paper with 7 and 11 cores in r, synthetically moved in the X and Y axis directions, and fixed.
2. A cell that records XY two-dimensional drawings, and 11; It X
For the same purpose as the Y recorder, press a single recording button l (swipe it firmly on the circumference of the drum, and set l'ram to the knee type?). Versus L, Seshi ν) 11:
, rotate in the opposite direction, and record the number 15 corresponding to the other person's number σ) at a right angle to the rotation of the drum.
There is a drum + 11'J It is well known that this is the case.

Among these J) records, use long recording paper J1-1
A recording paper drive mechanism of the time transfer type and the forward/reverse transfer type must be installed respectively.
Sprockets that engage the perforation groups continuously provided on the side edges are installed at both ends of the recording paper driving drum or at the -2 side end. It is driven so as to rotate forward and reverse in accordance with the rotation, time advance, or input signal, or in some cases, it is driven by being directly fixed on the drum surface that rotates forward and backward.

When MTo engages the drum sprocket with the perforation of the recording paper to rotate the recording paper forward or reverse,
When the recording paper is transported in a fixed direction, such as in the pre-X recording H1, the sprocket always engages with new perforations, so there is little damage to these perforations. However, in the forward/reverse drive mechanism of an XY recorder that uses long recording paper, one or two sprockets and one drum are used that engage the perforations of the recording paper, and one of them is used for forward or reverse rotation. It is engaged via a drive source, gears, etc. And then the recording paper)
Huo. The ration is set so that it engages with the drum sprocket at least within a range of 1'i'tJ or more, but in this engagement range, the frequency of forward and reverse rotations, 1-711'JI ``Depending on S, some
The negative 111 on the sprocket of the foration is too large, which tends to cause it to expand and break. Furthermore, when two drums are used, it is inevitable that the recording paper may become loose or cut between the two drums due to the inertia G of the drums during forward and reverse rotation.

Thu) Ming eliminates the shortcomings of the conventional long recording paper drive system as described in 1 above, accurately transports the recording paper in the forward and reverse directions, and uses XT, XY type recorders and other types such as curves. Recording paper 11 that can also be used for tracking devices, etc.: In order to provide a reverse direction drive method, ff1
Arranged 1″i to support the middle of both side edges of the J recording paper
at least one pair of timing gears respectively fixed to corresponding side ends of at least one of the pair of drums; and a pair of timing gears that are stretched in engagement with the at least one pair of timing gears. at least one timing belt having a sprocket track on its outer peripheral surface that engages with a perforation track formed on a side edge of the recording paper, and a timing belt for driving one of the pair of drums in both forward and reverse directions. and a mouth with a reversible drive mechanism.

The configuration described in item 1 is such that the long recording paper has a par 7 oration on at least one side edge in the plane from the writing position with the pen to the ejecting position and in the long range along the partial circumference of the drum of both Mi5s. Engage with the outer sprocket of the truck or timing bell) 4 < Move t+.

Therefore, the load on each perforation (G) is small and evenly distributed. Therefore, even if the recording paper is frequently reversed in forward and reverse directions, damage to the perforations and recording errors caused by this can be minimized. It is also clear that since the timing belt is stretched between the pair of drums, loosening of the recording paper due to inertia during forward and reverse rotation of the drive mechanism is prevented.

A detailed description will be given below with reference to the drawings.

FIG. 1 shows a conventional drive mechanism for a long recording paper using a drum with a sprocket. As mentioned above, in this case, the recording paper (], ) has subblocks on both sides) (za)
, (2b) is driven in the forward and reverse directions by the rotation of the drum to which it is fixed, and as is clear from the figure, the perforations (3) at both ends of the recording paper (]) are approximately four circumferences of the drum at most. range only sprockets) (za), (
zb), it will be understood that the more frequently the forward and reverse rotation of the recording paper drive is performed, the more likely the diameter of these holes will be enlarged and the holes will be damaged.

FIG. 2 shows a recording paper driving method according to the present invention which eliminates the drawbacks of the conventional method.

In the same figure, a pair of drums indicated by 00) and (11) are used to stretch the recording paper (1) substantially from its writing position to its ejection position, so that the substantial portion of the recording paper (]) excluding both side edges is used. It is arranged to support. In this case, timing gears (12a) and (121)) are provided on both side edges of the pair of drums Oo) and (II), respectively.
and (13a) and (13b) are fixed. These timing gears (12a)-(13a) and (tzb
) - (t3b) each have an endless timing bell)
(i4a).

(14b) is killed. The diameter of the timing gear is slightly smaller than the diameter of one drum (10) + (11), and the timing belt (14a) is stretched over this.
The outer peripheral surface of (141)) is a drum, m(to), 0
It should be on the same level as the circumferential surface of 1). Furthermore, the outer circumference ff of the timing belts (t4a) and (t4b)
1i has the trunk of the sprocket (15) that engages with the track of the perforation (3) formed on both side edges of the recording paper (]) (D).It holds the timing gear (lZa) of one drum α0). The shaft 06) is connected to a drive source (19) such as a single-gear reverse motor via a gear train 07) and α8).

Figures 3A and 3B show the schematic shapes of the timing gear (02) or (13) and the timing belt (θ4), respectively, and show the outer teeth (20) and inner teeth of both. 20 constitute a typical timing belt mechanism each having rectangular wave-like unevenness.

Since the embodiment of the present invention is configured as described above, the long recording paper (1) is moved from the writing position with the pen (on the drum 00 surface or a flat part in the vicinity thereof) to the ejection position (drum (11)).
side) and in a long range along the partial circumference of the drums Qo), (II) will be engaged and driven by the outer circumferential sprockets of the timing belts (14a), (14b).

Therefore, the load placed on each perforation is evenly distributed and extremely small. Even when the recording paper is frequently reversed and moved in forward and reverse directions, damage to the perforations and the resulting 3-day recording (difference) can be minimized. is clear.

Also, timing bells (14a) and (t4b) are stretched between the pair of drums (10) + (11), which prevents the recording paper from loosening due to inertia when the drive mechanism is reversed. It is.

Incidentally, the timing gear in one of the rows and the timing belt stretched therebetween may be omitted, and only one side edge of the recording paper may be engaged and driven by the timing belt in the other row.

In addition, in order to apply the mechanism of this embodiment to single-sheet recording paper, for example, the recording paper should be moved along the timing bells (t4a) and '(t4b) between the drums (10) and (11) with the back support guide. What is necessary is to provide a presser plate or the like that presses against the plate (not shown) from above.

Further, instead of the drums (10) and (11), curved guide plates having the same radius of curvature are used to drive the timing gear (10) and (11).
2a), (tzb) and (taa), (13b) may be driven by respective dedicated shafts.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an example of a conventional long recording paper drive mechanism, Fig. 2 is a perspective view showing an embodiment of the present invention, and Fig. 31f
iA and B are partial side views showing a timing gear and a timing belt, respectively. (])・・・・・・・・・・・・ Recording paper (3)・
・・・・・・・・・・・・・・・Perforation Qo
), (II)・・・・・・・・・・・・Drum (+gt + (+a)・・・・・・・・・・・・・・・
・・Timing gear (l→・・・・・・・・・・・・・
・・Timing held with sprocket (+7), (
+8)・・・・・・・・・・・・Gear train (l++
)・・・・・・・・・・・・・・・Dokugen Take, j′1 Applicant 1-1 Electronic Ligaku Co., Ltd. J-1・Representative
Ken Shin Mitsu Indication of 1 outsider procedural correction letter case 1981 Special RR Application No. 173618υ2
Name of the invention Recording paper forward/reverse direction driving force type 3 Correction person ゛1 Kobe 1 and Q1 Leap 1. f Name of one engineer for patent purposes (
Name (11,) MEKI゛1嫡ii main door (vermilion ceremony 7)
1゜4 Agent 〒604 I1 Location Kyoto 11 Kawako Kyo-ku Miyukicho-dori Sanjo Umaru Maruyamachi 3
No. 30, 16, hliil': NiJ: ri increase - number of inventions 7, subject of amendment 1liil i,', +-
Contents of all + - supplementary tuns

Claims (1)

[Scope of Claims] A pair of drums arranged to support the middle of both side edges of the recording paper in order to stretch the recording paper from its writing position to its ejection position; At least one corresponding side of the drum 1:j
at least one pair of timing gears each fixed to a, and a bar 7 oration formed on the side edge of the recording paper on the outer circumferential surface thereof. At least one timing belt having a sprocket trunk that engages with the track, and an nf reverse drive for driving one of the drums in the above-mentioned stage 1 in both forward and reverse directions, also have 1η (+iii 1, Recording paper forward and reverse direction drive system.