JPH04130258U - Roll paper curl removal device - Google Patents

Abstract

(57) [Summary] [Purpose] Achieves sufficient curl removal effect even when the diameter of roll paper becomes small. [Configuration] Recording paper storage chamber 1 of facsimile machine main body 11
2, a parallel ruler mechanism 51 is provided. Parallel ruler mechanism 51
A roll paper holder 52 and a recording paper holding member 53 are installed at the tip of the
A spring is provided between the roll paper holder 52 and the bottom surface of the recording paper storage chamber 12. The recording paper holding member 53 expands and contracts in conjunction with the expansion and contraction of the parallel ruler mechanism 51. The roll paper 13 is placed between the recording paper holding members 53 of the roll paper holder 52. When the diameter of the roll paper 13 becomes smaller and its own weight becomes smaller, the parallel ruler mechanism 51 extends and the recording paper holding member 5
3 firmly holds the roll paper 13. This increases the tensile force acting on the roll paper 13 and ensures that curls are removed.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a facsimile machine that uses roll paper, and particularly to a facsimile machine that uses roll paper. The present invention relates to a device for removing filtration.

0002

[Conventional technology]

In particular, many home facsimile machines have been miniaturized; In facsimile devices, the diameter of the roll paper accommodated within the device body is also small. death Therefore, the recording paper pulled out from the roll tends to curl, which is why conventional There is a mechanism inside the smearing device to remove curls from the recording paper. Ru. This curl removal mechanism, for example, removes the recording paper pulled out from the roll. has a configuration that curves it to the opposite side.

0003

[Problem that the idea aims to solve]

The conventional curl removal mechanism described above does not work well when the diameter of the roll paper is relatively large. has a sufficient curl removal effect, but as the roll diameter becomes smaller, the curl becomes stronger. Therefore, a problem arises in that the curl removal effect is not sufficient. In view of these conventional problems, the present invention has been developed to ensure that roll paper can be filled even when the diameter of the roll paper becomes smaller. The purpose of the present invention is to obtain a decurling device that can perform a sufficient decurling action. It was made by

0004

[Means to solve the problem]

The curl removing device according to the present invention includes a paper feeding member that pulls out recording paper from a roll; A parallel ruler mechanism that supports the roll paper so that it can be raised and lowered while constantly urging it upward; It is connected to a ruler mechanism and applies a predetermined force to the outside of the roll paper depending on the height position of the roll paper. Records pulled out from the roll in cooperation with the paper feed member by pinching the peripheral surface Equipped with a recording paper holding member that can apply tension to the paper, when the diameter of the roll paper is less than a predetermined value. , since the parallel ruler mechanism extends against the weight of the roll paper, the recording paper holding member The paper is held between the rolls with a relatively large force and applied to the recording paper pulled out from the roll. It is characterized by an increase in the tension applied.

[0005]

【Example】

The present invention will be explained below with reference to the illustrated embodiments. Figures 1 and 2 show a factory equipped with a curl removal device in an embodiment of the present invention. FIG. 2 is a partial cross-sectional view of the Simili device. Figure 1 shows the roll paper with a large diameter, and Figure 2 indicates a state in which the roll diameter is reduced.

[0006] A recording paper storage chamber 12 formed in the facsimile main body 11 contains roll paper 1. 3 is placed in a horizontal state, and this roll paper 13 is rotatable around its axis. The recording paper 14 is fed out from the roll by a platen roller 21 as described later. After being printed by the thermal head 22, it is ejected from the recording paper ejection port 31. Ru.

[0007] A parallel ruler mechanism 51 is placed on the bottom of the recording paper storage chamber 12, and this parallel ruler mechanism A roll paper holder 52 is provided at the tip of the paper roll 51 . The roll paper 13 is a roll paper holder. It is placed on the stand 52. Recording paper is held on both sides of the roll paper holder 52. Members 53 are provided to protrude upward, and the recording paper 13 is held between these recording paper holding members 53. placed between. The recording paper holding member 53 is connected to the tip of the parallel ruler mechanism 51. It expands and contracts in conjunction with the expansion and contraction of the parallel ruler mechanism 51. In other words, the parallel ruler mechanism 51 is a mechanism similar to the so-called magic hand, and supports the roll paper 13 in a manner that allows it to move up and down. The recording paper holding mechanism 53 is expanded and contracted in conjunction with the vertical movement.

[0008] As shown in FIG. A spring 54 is provided. The spring 54 always urges the roll holder 52 upward. death Therefore, when the roll paper 13 has a large roll diameter and its own weight is large, As shown in FIG. 1, the spring 54 and the parallel ruler mechanism 51 contract, thereby causing the recording paper to be sandwiched. The holding member 53 expands. On the other hand, the diameter of the roll paper 13 becomes smaller and its own weight increases. When becomes smaller, the parallel ruler mechanism 51 is expanded by the spring 54, as shown in FIG. However, as the roll paper holder 52 rises, the recording paper holding member 53 narrows. As a result, the outer peripheral surface of the roll paper 13 is clamped with a large force.

[0009] At the upper end of the wall of the recording paper storage chamber 12 on the recording paper ejection port 31 side, there is a A raised portion 15 is formed that engages with the lower surface of the recording paper 14, and the recording is made from this raised portion 15. A pressing member 16 is provided on the recording paper outlet 31 side. The pressing member 16 is a facsimile It is fixed to the lower surface of the lid 17 of the device main body 11 and can be pressed when the lid 17 is closed. The lower end portion 16a of the pressure member 16 is configured to be located below the upper surface of the raised portion 15. has been done.

0010 On the side of the recording paper ejection port 31 of the pressing member 16, there is a platen roller 2 which is a paper feeding member. 1 and a thermal head 22 for printing received information on recording paper 14. , these platen rollers 21 and thermal heads 22 are arranged close to each other. Ru. The platen roller 21 is provided horizontally and engages the recording paper 14 with its upper surface. The recording paper 14 is fed out by rotating around two axes. platen roller Furthermore, a fixed blade 23 and a movable blade 24 are disposed at the recording paper discharge port 31 of the recording paper discharge port 21 . solid The fixed blade 23 is integrally fixed to the device main body 11, but the movable blade 24 is provided so that it can be moved up and down. It will be done. The recording paper 14 passes between the fixed blade 23 and the movable blade 24, and the movable blade 24 It descends at the timing of , and cuts the recording paper 14 into a predetermined size. In addition, the movable blade 2 4, the side closer to the recording paper ejection port 31 removes static electricity on the ejected recording paper 14. Therefore, a static eliminating brush 25 is provided.

[0011] Next, the operation of this embodiment will be explained. When the diameter of the roll paper 13 is large and its own weight is large, as shown in FIG. The ruler mechanism 51 and the spring 54 (FIG. 3) contract, and the recording paper holding member 53 expands. death Therefore, at this time, the recording paper holding member 53 holds the roll paper 13 on the roll paper holder 52. Virtually no pinching. That is, the recording paper 14 is pulled out by the platen roller 21. When the recording paper 14 is loaded, there is a friction between the roll paper 13 and the roll paper holder 52. The frictional force acts as resistance, and the recording paper 14 is moved between the raised portion 15 and the platen roller 21. It is pressed downward by the pressing member 16 between. Therefore, roll paper The platen roller 21 pulls the recording paper 14 against the frictional force of the pressing part 13. The curl of the recording paper 14 is removed by the material 16 pressing the recording paper 14 downward. Ru.

0012 When the diameter of the roll paper 13 becomes smaller and its own weight becomes less than a predetermined value, as shown in FIG. , the parallel ruler mechanism 51 and the spring 54 (FIG. 3) extend, and the recording paper holding member 53 Narrows down. Therefore, the recording paper holding member 53 holds the roll paper 1 on the roll paper holder 52. 3 with a relatively large force. Therefore, the recording paper 14 is transferred to the platen roller 21. When the recording paper is pulled out by the recording paper holding member 53, it is subjected to a large tightening force. Therefore, it will receive a larger tensile force than when the roll diameter is small, and the pressing part Along with the pressing force exerted by the material 16, curls are removed with stronger force.

[0013] In this way, when the diameter of the roll paper 13 is large, the tensile force that the recording paper 14 receives is If the diameter of the roll paper 13 is relatively small, the tension applied to the recording paper 14 will be smaller. The curling force becomes relatively large, and the curl on the recording paper 14 is reliably removed.

[0014] Note that if the curl can be removed only by the action of the recording paper holding member 53, press It is also possible to omit the member 16. Furthermore, the recording paper holding member 53 is used not only when the diameter of the roll paper 13 is small, but also when the diameter of the roll paper 13 is small. It may be configured to sandwich the outer surface of the roll paper 13 even when the roll paper 13 is not used.

[0015]

[Effect of the idea]

As described above, according to the present invention, even if the diameter of the roll paper becomes smaller, sufficient curl removal can be achieved. The effect is that it becomes possible to obtain an exogenous action.

[Brief explanation of drawings]

FIG. 1 is a partial sectional view showing a facsimile machine equipped with a curl removing device according to an embodiment of the present invention, showing a state where the roll diameter is large.

FIG. 2 is a partial cross-sectional view showing the facsimile machine of FIG. 1 in a state where the roll diameter is small;

FIG. 3 is a side view showing the parallel ruler mechanism.

[Explanation of symbols]

11 Facsimile machine body 13 Roll paper 14 Recording paper 21 Paper feeding member 31 Recording paper outlet 51 Parallel ruler mechanism 52 Roll paper holder 53 Recording paper holding member

Claims (1)

[Scope of utility model registration request] 1. A device that is provided in a facsimile machine that uses roll paper and removes curls from recording paper pulled out from the roll paper, comprising a paper feeding member that pulls out the recording paper from the roll, and a device that constantly moves the roll paper. A parallel ruler mechanism that supports the roll paper so that it can be raised and lowered while being biased upward, and a parallel ruler mechanism that is connected to the parallel ruler mechanism and clamps the outer circumferential surface of the roll paper with a predetermined force depending on the height position of the roll paper, allows the above-mentioned a recording paper nipping member capable of applying tension to the recording paper pulled out from the roll in cooperation with the paper feeding member, and when the diameter of the roll paper is less than a predetermined value, the parallel ruler mechanism The recording paper holding member grips the roll paper with a relatively large force by stretching against the pressure, and the tension applied to the recording paper pulled out from the roll increases. Curl removal device.