JPH0272981A - Recorder - Google Patents

Abstract

PURPOSE:To facilitate assemblage and contrive a reduction in cost by mounting a guide member, provided for guiding a recording sheet from a recording part to a cutter, in contact with a part of a feeding member. CONSTITUTION:With stepped small screws 12 tightened, a guide member 4 is energized by a leaf spring 13, and the energizing force brings an edge of a guide member 4a into contact with a flange 10a. The edge of the guide part 4a opposed to a platen roller 3a is formed in a rectilinear shape with excellent straightness. As a result, the platen roller 3a and the guide part 4a are mounted in parallel to each other, with the gap therebetween set accurately to a distance l. With the guide member 4 thus mounted, the gap between the platen roller 3a and the guide member 4 can be accurately set without any adjustment, and a recording sheet 1 recorded is securely fed from a recording part 3 to a position between a stationary blade 5a and a movable blade 5b of a cutter 5, under the guiding by the guide member 4.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a recording apparatus that can reliably guide a sheet after recording to a cutter.

<Conventional technology> Today, facsimiles and printers are widely used, but
These recording methods are configured in mm and θu as shown in FIG. That is, the platen roller 50 conveys a roll-shaped angry heat recording sheet 51, and this recording sheet 51
is selectively heated by a recording head 52 to form an image, and a cutter 53 is configured to cant and discharge the image from the rear end of the image.

In the above configuration, a guide 54.5 is provided between the platen roller 50 and the cutter 53 so that the sheet 51 after recording is reliably conveyed between the movable blade 53a and the biasing blade 53b.
5 is provided. This guide 54 allows the recording sheet 51 to be placed in the gap 5 between the platen roller 50 and the guide 54.
It is necessary to manage the gap 56 so that it does not enter the gap 6. In addition, in order to prevent the leading edge of the recording sheet from entering the lower side of the movable blade 53a, the cutter side end of the guide 54 needs to be managed at a higher position than the movable blade 53a, and the gap between it and the movable blade 53a does not become large. . Therefore,
Conventionally, the gap 56 is controlled and adjusted when the guide 54 or cutter 53 is installed.

Conventionally, when constructing a structure such as a facsimile machine using a made-of-all-metal yarn, the platen roller 50 described in O1I is rotatably fitted into the fitting holes of both side plates of the yarn, and the guide 54 is
Generally, the cutter 53 is fixedly mounted on the stay of the chassis. The gap between the guide 54 and the platen 1 cola 50 and cutter 53 is adjusted by
The dimensions of each part are j + 1 degrees! It was tff. This is because the drive link of the cutter 53 is positioned by the noyano, so the cutter 53 must be positioned relative to the noyano in order to guarantee the canoter stroke.

In addition, there are some devices that use a resin mold as a structure, but in order to keep the overall mold cost low, there are restrictions on the direction of screw holes, etc. In this case, guide 5
When screwing 4 onto a sort roll from above, the gap between the platen roller 50 and the guide 54 is adjusted. Furthermore, on top of that, determine the fitting position with the sort roll bottle and apply force.
The motor 53 is fixed. And in this case guide 5
4 is attached between the sort roll and the cutter 53 in a mutually fastened manner.

<Problems to be Solved by the Invention> There is a desire for miniaturization of the faxo, li IJ devices, and the like. Therefore, if the inner core 51a of the sorting roll is made smaller, the recording sorting 51 will become curled when the remaining amount of sheets becomes small, and the Ku E51 will be in a curled state. This curl, for example, binds the roll inner core 5]a to about 16m++,
When the outer diameter of the platen roller 50 is approximately 16mm, 18mm
It will be around 2011.

Therefore, the curled recording sheet 51 tends to get into the gap 56 between the platen roller 50 and the guide 54, and to prevent this, the gap 56 must be maintained within about 0.3 to Q, 3 mm.

However, if the adjustment of the gap relies on the dimensional accuracy of each component as in the past, the gap will be at least 111 or more if no adjustment is made.

Therefore, in order to manage the gap, an adjustment process is required for each machine, which becomes an obstacle to reducing manufacturing costs and causes an increase in the defective rate due to adjustment errors.

Further, when the chassis is made of resin mold, the guide 54 has to be bent a lot (and the cutter 53 is tightly tightened), so the gap adjustment has to be made more precisely.

SUMMARY OF THE INVENTION An object of the present invention is to provide a recording apparatus that solves the above-mentioned conventional problems and allows easy management of the positioning of a guide member for guiding recording sorting to a cutter.

Means for Solving the Problem> Means for solving the problem includes a conveying means for conveying a recording sheet, a recording head for recording an image on the recording sheet conveyed by the conveying means, The recording sheet includes a cutter for cutting the recording sheet, and a guide member for guiding the recording sheet from the conveyance means to the cutter, and the guide member is positioned by abutting a part of the conveyance means. It is characterized by

Further, the guide member 1' is brought into contact with the conveyance means by a biasing member, or the guide member itself is made of an elastic body and biased against the conveyance means.

<Function> According to the 1rl+3 self means, it is possible to position the guide member simply by bringing the guide member into contact with a part of the conveying means, and by simply guaranteeing the machining accuracy between the conveying member and the guide member, the distance between the two is improved. It is possible to control the gap with high precision.

Therefore, there is no need for adjustment during assembly to manage the gap.

<Embodiment> Next, an embodiment of the present invention in which the above means is applied to a facsimile machine will be described.

C First Embodiment] FIG. 1 is an explanatory central sectional view of a facsimile machine, and FIGS. 2(A) and 2(B) are a perspective view and a sectional view showing how the guide member is attached.

First, to explain the overall configuration of the device, 1 is a thermosensitive recording sheet that develops color by applying heat, and a long sheet is wound in a roll around an inner core 1a with a diameter of about 16 m, and the sheet roll lb is a drop-in type. is stored in the roll holder 2.

An image is recorded on the recording notebook I in a recording section 3 which will be described later, and the recorded sheet 1-1 is guided by a guide member 4 to a cutter 5 and cut from the trailing edge of the image, and then transferred to a reversing tray by a υ1 output roller 6. 7.

Reference numeral 8 denotes a document reading section, in which the document 9 stacked on the top cover is pressed against the separation pressing piece 8a (+if
The sheet is separated one by one by a separation roller 8d that is in pressure contact with an IQQ feed roller 8b and a separation pressure piece 8c, and further conveyed by a conveyance roller 8r that is in pressure contact with a pressure roller 8e. Furthermore, the surface of the transported document 9 is irradiated with light i1+98g, and the reflected light is directed to the photoelectric conversion element 8j of the CCD shade via the mirror 8h and lens 81, and the image is converted into an image in the copy mode. The recording unit is configured to transmit data to the recording unit of another machine when in facsimile mode (transmission mode).

The configuration of the recording section 3 is as follows: On the surface of a platen roller 3a, which also serves as a conveying means, driven by a motor (not shown), heating elements that are individually energized and generate heat in response to both signals are arranged in a row, and a spring 3C presses a recording nozzle 3b. It is pressed by. Therefore, an image is recorded on the recording sheet 1 by rotating the platen roller 3a in the direction of arrow A to convey the recording sheet 1, and in synchronization with this, the heating element generates heat in accordance with the image signal. be.

Next, the cutter 5 will be explained. This is a fixed blade 5a.
This is a rotary cutter consisting of a multi-moving blade 5b.The fixed blade 5a is attached to a fixed blade stay 5az that can rotate around a shaft 5a, and the fixed blade 5a is attached to this stay 5. An upper guide portion 5at is formed.

Similarly, the movable blade 5b is attached to a movable stay 5b that can rotate the shaft 5b, and the recording sheet l canted by the cutter 5 is discharged onto the upper surface of the movable blade 5b. Movable blade guide 5bi for guiding to roller 6
is provided.

In FIG. 1, 5c is a cutter chassis that constitutes the entire structure of the cutter, and has side plate portions (not shown).
A lug 5a+ of the fixed blade 5a is rotatably attached to the positioning hole of the side plate so as to urge the movable blade 5b. Similarly, the movable blade 5 is inserted into the positioning hole of the side plate.
A shaft 5b of b is rotatably attached, and this shaft 5b,
is configured to transmit rotational force from a motor (not shown). When the movable blade 5b rotates, it sequentially rubs against the fixed blade 5a, and the recording sheet 1 inserted between the double blades 5a and 5b is cut.

Next, the mounting structure of the guide member 4 for guiding the recording sheet 1 from the recording section 3 to the cutter 5 will be explained.

This guide member 4 is as shown in FIGS. 2(A) and 2(B).
It is attached so as to come into contact with a bearing 10 of a platen roller 3a serving as a means for conveying the recording sheet 1. To explain this specifically, both ends of the shaft 3a+ of the platen roller 3a are rotatably supported by a bearing 10, and this bearing 10 is fitted and supported by the U-shaped portion 11a, l1l) of the base 11.

Further, the bearing 10 has a diameter of about 16 m++, which is larger than the diameter of the platen roller 3a (1 - about 0.5 m in this embodiment).
The flange 10a has a larger diameter (set to m). Further, in order to prevent the bearing 10 from rotating, the two-way cut portion is fitted with the U-shaped portions 11 a and 11 b, and the flange loa is in pressure contact with the platen roller 3 a in the axial direction. It is installed so that they do not touch each other.

The guide member 4 is made of a highly rigid sheet metal, and has a guide portion 4a.
and the bent leg portion 4b form a TJ-shaped cross section. Screw holes 4c are formed at two predetermined positions on the leg portion 4b, and a step screw 12 is inserted through the screw hole 4c. At this time, a temporary spring 13 is inserted between the cuckoo chassis 5c and the guide member 4.
It is attached with an intervening The guide member 4 attached to the roller 5c with the step screw 12 does not move vertically or horizontally, but is attached so that it wobbles a little in the front-rear direction (direction toward the platen roller 3a).

When the step screw 12 is tightened, the guide guide member 4 is biased by the slope spring 13, and this biasing force causes the end of the guide portion 4a to come into contact with the flange 10a.Furthermore, the platen roller 3a of the guide portion 4a The end edge on the side opposite to is formed into a straight line with excellent straightness.As a result,
The platen roller 3a and the guide portion 4a are mounted parallel to each other, with a gap between the two 3a and 4a separated by an accurate distance l.

Incidentally, the dimension e of the gap is the recording sheet tip b after recording:::
However, the size is such that it does not enter the gap, and this gap can be easily set by setting the radius of the flange 10a of the bearing 10.

Further, the Kanoturn palm 5c described in 1iI is fixed to the heath 11 by a fixing bolt 14. At this time, the legs of the guide member 4d are adjusted so that the cutter side edge of the guide portion 4a of the guide member 4 attached to the cutter chassis 5C is located above the movable blade 5b also attached to the cutter chassis 5C. The length of the portion 4b is set.

By attaching the guide member 4 as described in n71,
The gap between the platen roller 3a and the guide member 4 can be set accurately without adjusting the gap, and the recording sheet 1-1 after recording is guided from the recording section 3 by the guide member 11 to the fixed blade 5a of the cuckoo 5. and the movable blade 5b.

In this embodiment, in addition to attaching the guide member 4 to the cutter chassis 5c with the step screw 12, a locking portion 5c is formed on the cutter yarn 5c as shown in FIG. The leg portion 4b of the guide member 4 may be locked to the portion 5c1. That is, when attaching the guide member 4, it is sufficient if the guide member 4 is attached LJ so as to suppress movement in the vertical and horizontal directions.

Also, t) the member that urges the writing guide member 4 is also the temporary spring 1.
It is not necessary to limit the number to 3, and coil springs, torsion coil springs, wave one gloss, rubber, etc. may be used.

(Second Embodiment) Next, as a second embodiment, an example in which the guide member itself is provided with elastic force will be described.The same parts as those in the first embodiment are given the same reference numerals, and a description thereof will be omitted.

FIGS. 4(A) and 4(B) are a perspective explanatory view and a cross-sectional explanatory view showing the installation structure of a guide member 4' according to the second embodiment.

The guide member 4' shown in the figure includes a guide part 4d made of a sheet metal with strong rigidity and excellent straightness, and a spring member (
For example, the leg portion 4e made of a spring stainless steel plate is combined with the leg portion 4e.

The leg portion 4e of the guide member 4' is attached to the cutter chassis 5c with a screw 15, and at this time, the elastic force of the leg portion 4e causes the guide guide portion 4d to be attached to the flange 1 of the bearing lO.
It is biased so as to come into contact with 0a.

Even with the above configuration, the gap between the platen roller 3a and the guide portion 4d can be easily set by increasing the radius of the flange 10a by the distance l relative to the radius of the platen roller 3a, as in the first embodiment. It is possible.

In this case, the guide portion 4d and the leg portion 4e may be constructed integrally.

[Third Example]

Next, as a third embodiment, an example in which the guide member is brought into contact with the bearing 10 without being biased will be described.

FIGS. 5(A) and 5(B) are perspective explanatory views and cross-sectional views showing the installation structure of the guide member 4'' according to the third embodiment.
i is an explanatory diagram.

The guide member 4'' shown in the figure is made of a sheet metal with strong rigidity and excellent straightness, and has elongated holes 4f bored at both ends thereof.U-shaped portions 11a and Ilb into which the bearing 10 fits are formed. A mounting portion 11c and a lid for attaching the guide member 4″ are formed on the heath 11, and the guide member 4″ is attached to the mounting portion +1c and lid with screws 16.

When attaching the guide member 4'', the guide member 4'' is slid within the range of the elongated hole 4f, and its end side is fixed by abutting against the flange 10a.

Even with the above configuration, the gap l between the platen roller 3a and the guide member 4' can be set reliably and easily by setting the radius of the platen roller 3a and the radius of the flange 10a.

[Other Examples]

In the first to third embodiments described above, the flange 10.
1 is formed to be long in two directions so that the flange 10a does not contact the recording head 3b. However, if the length of the recording head 3b in the longitudinal force direction is shorter than the platen roller 3a, the flange 10a may be made circular. It may be formed into Further, in this case, there is no need to form a rotation stopper on the bearing lO.

In addition, in the first to third embodiments described above, the guide portion was formed in a straight line and was brought into contact with the flange lO7], but as shown in FIG. Also good.

In the configuration shown in FIG. 6, claws 4g for positioning are provided at both ends of the guide portion of the guide member, and the claws 4g are configured to abut against the bearing IO of the platen roller 3a.

With the configuration as described above, there is no need to form the flange 10a on the bearing IO, and there is no need to provide the bearing 10 with a rotation stopper.

Or, attach the claw portion 4g marked 111■ to the shaft 3 of the platen roller 3a.
311 may be directly contacted.

Further, in the first to third embodiments, the bearing 10 was fitted to the U-shaped portions 11a and Ilb of the heath 11, but the bearing 10 was fitted to the heath 11 by screwing or the like.
It may also be attached to. Also, the guide member l+'
, 4' to the cutter chassis 5c or the heath 11 need not be limited to screw fixing as described above, and may be attached by, for example, welding or the like.

Furthermore, in the first embodiment and the second embodiment, the guide member 4.4'
is attached to the cutter chassis 5C, and the guide member 4'' is attached to the heath 11 in the first embodiment.
The member to which the guide member is attached is not limited to the cuff chassis 5c or the head 11, as long as the guide member can be positioned and attached between the platen roller 3a and the cutter 5.

<Effects of the Invention> The present invention is as follows:
Since the guy/upper member for guiding the conveyance member is attached in contact with a part of the conveyance member, the positioning of the conveyance member and the guide member can be easily controlled with high precision. Further, since no assembly adjustment is required during the positioning, the assembly process becomes easy and costs can be reduced, and the quality of the positioning can be stabilized.

Furthermore, if the guide member is biased against the conveying means by elastic force, the guide member and cutter can be assembled in advance as a unit, and the number of steps in the assembly line of the recording apparatus body can be reduced. It is also possible.

[Brief explanation of the drawing]

FIG. 1 is an explanatory central sectional view of a facsimile machine according to an embodiment of the present invention, FIGS. 2A and 2B are configuration explanatory diagrams of the installation of a guide member according to the first embodiment, and FIG. are other installation +J configuration explanatory diagrams of the guide member according to the first embodiment, and the fourth
Figures (A) and (B) are configuration explanatory diagrams showing the installation of the guide member according to the second embodiment, and Figures 5 (8) and (R) are configuration explanatory diagrams showing the installation of the guide member according to the third embodiment. , FIG. 6 is an explanatory diagram of another configuration of the guide member, and FIG. 7F is an explanatory diagram of the prior art. l is the recording sheet, 1a is the inner core, ■b is the notebook roll, 2
is a roll holder, 3 is a recording unit, 3a is a platen roller, 3a is a shaft, 3b is a recording head, 3c is a pressing spring, 4.4', 4' are guide members, 4a is a guide part, 4
b is a leg part, 4c is a screw hole, 4d is a guide part, 4e is a leg part, 4" is a long hole, 5 is a cutter 85a is a fixed blade, 5a is a shaft, 5at is a fixed blade stay, 5a is an upper guide Part, 5
b is a movable blade, 5b is a shaft, 5b is a movable blade stay, 5b
s is a movable blade guide, 5c is a cutter chassis, 5c+ is a locking portion, 6 is a discharge roller, 7 is a reversing tray, 8 is a reading portion, 8a is a separation pressing piece, 8b is a preliminary conveyance roller, 8
C is a separation pressing piece, 8d is a separation roller, 8e is a pressing roller,
8f is a transport roller, 8g is a light source, 8h is a mirror, 81 is a lens, 8j is a photoelectric conversion element, 9 is a document, ■0 is a bearing,
IOa is a flange, 11 is a base, 11a and 11b are U-shaped parts, and 11c. lld is a mounting part, 12 is a step screw, 13 is a counter-spring, and 16 is a screw.

Claims (3)

[Claims] (1) A conveyance means for conveying a recording sheet, a recording head for recording an image on the recording sheet conveyed by the conveyance means, a cutter for cutting the recording sheet, and a A recording apparatus comprising: a guide member for guiding the recording sheet to a cutter; and the guide member is positioned by abutting a part of the conveyance means. (2) The recording apparatus according to claim (1), wherein the guide member is urged against a part of the conveyance means by a biasing member. (3) The recording device according to claim 1, wherein the guide member is made of an elastic member, and the elastic force of the guide member biases the guide member against a part of the conveyance means.