JPH06305594A - Recorder - Google Patents

Abstract

PURPOSE:To provide a recorder wherein a separating mechanism for separating cut recording paper loaded is formed in a simple structure. CONSTITUTION:A separating mechanism 30 is constituted of L-shaped separating pin levers 7R, 7L rotatably mounted by shafts 6R, 6L on paper feed directional ends of width restricting plates 5R, 5L for restricting a width direction of loaded recording paper and separating pins 8R, 8L provided in point end parts of these separating pin levers 7R, 7L. In the separating mechanism 30, its bottom is restricted by stopper pins 11R, 11L provided in the outside of the width restricting plates 5R, 5L. In this bottom restricted condition, the separating mechanism 30 is positioned lower than a paper feed route, to place cut recording paper and separating pawls 8R, 8L in a separating condition. At the time of feeding paper onto the paper feed route, by lifting a paper feed direction end of a bottom plate 3, the loaded recording paper is also lifted, and recording paper in the uppermost part is brought into contact with the separating pins 8R, 8L, so as to position the separating mechanism 30 upper from the paper feed route.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording device for recording on cut recording paper, and more particularly to a separating mechanism for separating stacked cut recording papers one by one.

[0002]

2. Description of the Related Art Conventionally, there are recording apparatuses for printing characters, pictures, etc. on cut recording paper. In such a recording device,
It has a paper feed mechanism that separates the recording papers one by one from a recording paper tray on which a large number of cut recording papers are stacked and conveys the recording papers to the recording unit. The paper feed structure shown in FIG. 6 has an FRR (Forw
This is called an "ard & Reverse Roller" method, and the paper feed rollers 51A and 51B rotate counterclockwise in the figure to eject the cut recording paper 53 in the recording paper tray 52 in the paper feeding direction. These paper feed rollers 51A and 51B (Fo
The paper roll tray 52 only with the rroll roller)
Multiple sheets of cut recording paper 53 will be ejected from the
A reverse roller 54 (Reverse Roller) that rotates in the same direction as the paper feed rollers 51A and 51B at a position where the paper feed roller 51A and the cut recording paper 53 are sandwiched therebetween.
Is provided so that the recording paper 53 other than the uppermost portion is not discharged from the recording paper tray 52.

By the way, conventionally, the color ink on the surface of the transfer paper is melted by the heat of the thermal head (thermal melting property),
2. Description of the Related Art There is known a recording apparatus that sublimates (thermally sublimates) to perform color recording at a desired position on a recording paper according to characters and image information. The transfer paper is one in which color inks of each color such as yellow, magenta, cyan, black, etc. are sequentially applied in a longitudinal direction in the form of a danda, and the thermal head is pressed against the recording paper via this transfer paper to By reciprocating, the color ink applied to the transfer paper is sequentially transferred. When cut sheets are used in such a recording apparatus, a recording sheet feeding mechanism is required. However, in the FRR type paper feed mechanism as described above, the paper feed roller 51
Since the A and 51B and the reverse roller 54 are required, and a recording paper retreat for reciprocating the recording paper during the recording operation is required, the recording apparatus becomes large and the cost increases. turn into.

Therefore, as a separation mechanism having a simpler structure than that of the FRR system, a separation mechanism 60 provided with a separation claw 61 as shown in FIG. 7 is known. In the figure, by rotating the paper feed roller 63, which is in pressure contact with the recording paper 64, in the forward direction (arrow 63A in the figure), the uppermost recording paper 64 stacked advances in the direction of arrow 65 in the figure. I will try. However, the separation claws 61 provided at both ends in front of the recording paper tray 62 prevent the progress thereof. As a result, the recording paper 64 is bent between the separation claw 61 and the paper feed roller 63.
In this state, the paper feed roller 63 continues to rotate,
Due to the elastic force of the recording paper 64, the leading end of the recording paper 64 will eventually come off the separating claw 61. In this way, the recording paper 6
4 can be separated one by one. Since this method has a simple structure and is inexpensive, it is widely used in recording paper trays such as copying machines and printers.

[0005]

By the way, in the sheet feeding structure by the separating claw system as described above, when the cut recording paper is attached to and detached from the recording paper tray, the separating claws obstruct the corners of the cut recording paper. Trouble that breaks occurs. It is important for a recording device that uses cut chart paper to feed the chart paper securely, but if the corners of the cut chart paper are broken in this way, there is a problem that the paper cannot be fed reliably. To do. Particularly, in a recording apparatus in which recording is performed by reciprocally moving the recording sheet as described above, the registration accuracy of recording deteriorates unless the sheet is reliably fed. Therefore, a structure may be adopted in which the separation claw is retracted when the recording paper is attached to or detached from the recording paper tray, but that structure poses a problem. That is, if the retracting structure of the separating mechanism is manually operated,
Although it is possible to reduce the number of parts, it is troublesome for the user because it is necessary to operate each time the recording paper is attached to or detached from the recording paper tray. Further, if the automation is performed, the number of parts increases, which causes an increase in the cost of the recording apparatus.

Therefore, the present invention has been made by paying attention to the above-mentioned points, and in forming a separation claw type recording paper separating mechanism in a recording apparatus for reciprocating the recording paper for recording, its parts An object of the present invention is to provide a recording apparatus having a small number of points, which does not require an operation of retracting the separation claw when the recording paper is attached to or detached from the recording paper tray, and which has a separation mechanism capable of surely supplying the paper. .

[0007]

As a means for achieving the above object, the present invention is a recording paper storage means for stacking and storing cut recording paper on a vertically movable tray, and this recording paper storage means. A transport roller for transporting the cut recording paper stored in the transport path onto the transport path and a separation claw for separating one cut recording paper stored in the recording paper storage means come into contact with each other by the vertical movement of the cut recording paper. A recording paper separating means provided so as to move up and down by moving the tray of the recording paper storing means up and down to bring the cut recording paper and the conveying roller into contact with and separate from each other. With a recording device that feeds paper using a conveyor roller while it is in contact with the paper, and reciprocates the cut recording paper that has been fed, to thermally transfer the color ink on the transfer paper to the cut recording paper in a frame-sequential manner. Ah The recording paper separating means is held so that the separation claw of the recording paper separating means is located above the conveyance path when the conveying roller and the cut recording paper are in contact with each other, and the recording paper separating means is cut with the conveying roller. When the recording paper is separated from the recording paper, the uppermost cut recording paper and the separation claw when the recording paper separating means is at a position lower than the conveying path and the cut recording paper is stored in the recording paper storing means at the maximum. An object of the present invention is to provide a recording apparatus characterized in that and are held at positions separated from each other.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an external perspective view of a recording apparatus that is an embodiment of the present invention. In the figure, the recording apparatus 1 has a recording paper storage unit 2 (recording paper tray) fixed in front of the main body for storing cut recording paper. In the cut recording paper stored in the recording paper storage unit 2, only the uppermost recording paper stacked by the separating mechanism described later is separated and fed. Then, the fed recording paper is reciprocally moved, and the color inks sequentially applied to the transfer paper are sequentially recorded according to desired recording information, and when the recording operation is completed, the upper portion of the recording paper storage unit 2 is The paper is discharged onto the paper discharge tray 19 of.

Next, the internal structure of the recording apparatus 1 of this embodiment will be described with reference to FIGS. FIG. 2 is a perspective view of a main part of the recording paper storage unit 2. FIG. 3 is a vertical cross-sectional view of the recording device 1. In FIG. 3, reference numeral 2 denotes the recording paper storage unit (recording paper storage means) 2 for storing the recording paper 2A, which is used when the recording paper 2A is reciprocated during the recording operation.
Is also a space for retracting the recording paper 2A in order to return the recording paper 2A to the first recording position. That is, before the recording of the first color is completed and before the recording operation of the next color is started, the recording position of the recording paper 2A is fed back to the position where the recording should be performed first.
The recording paper storage unit 2 is used as a place for retracting the trailing end of the recording paper 2A during this backward feeding.

Here, the recording paper storage unit 2 has a structure shown in FIG. That is, the recording paper storage unit 2 has a substantially box shape,
A bottom plate 3 having a shaft (not shown) as a rotation center is provided on the bottom surface.
The recording paper storage unit frame 4 is pivotally supported in a vertically rotatable manner. In addition, separation pin levers 7R and L whose front end portions are bent in an L-shape are freely rotatable by shafts 6R and L at the ends of the width regulating plates 5R and L that regulate the width of the recording paper to be stacked. Is attached to. This separation pin lever 7
The recording paper accommodating portion 2 is provided with the leading end portions of the R and L bent into an L shape.
Of the width regulating plates 5R and 5L.
Separation pins 8R and L are provided at the tip ends of the separation pin levers 7R and L protruding from the width regulating plates 5R and L, respectively, and the stacked recording papers are separated by the separation pins 8R and L. By means of the separation pin levers 7R, L and the separation pins 8R, L, a separation mechanism section (recording paper separation means) 30
Are configured. And the separation pin levers 7R, L
Is always urged downward by its own weight, but is downwardly regulated by stopper pins 11R, L provided outside the width regulating plates 5R, L. A trailing edge regulating member 9 for regulating the trailing edge of the cut recording sheet is provided at the trailing edge of the recording sheet storage section 2.
Is provided. The trailing edge regulating member 9 is slidable in the front-rear direction so that the trailing edge regulating member 9 does not get in the way when the cut recording paper is attached to or detached from the recording paper storage unit 2. Reference numeral 25 denotes a front end regulating member 25 for regulating the front end portion of the stacked cut recording paper 2A, which is provided below the paper feed guide plate 31 (see FIG. 3).

Further, in FIG. 3, reference numeral 24 feeds the cut recording paper 2A stacked in the recording paper storage unit 2 into the recording apparatus 1 and ejects the cut recording paper 2A inside the recording apparatus 1 to the outside of the recording apparatus 1. A sheet feeding / discharging roller (conveying roller) 24 for making paper. Further, reference numeral 10 denotes a thermal head mechanism unit 10 having a thermal head 12 mounted thereon, which is rotatably installed around a rotary shaft 10A. By rotating the thermal head mechanism unit 10, the thermal head 12 is moved to the platen roller 1
It is possible to move to a retracted position (not shown) retracted from No. 3 and a set position (position shown in FIG. 3) for setting at a position slightly apart from the platen roller 13. The thermal head 12 is pressed against the platen roller 13 by a mechanism (not shown). Further, 14 is the transfer paper 14 wound around the transfer paper rolls 14A and 14B in the longitudinal direction. The recording paper 2 in which the thermal head 12 is wound around the platen roller 13 via the transfer paper 14
By being pressed against A, the color ink applied to the transfer paper 14 is recorded on the recording paper 2A. Reference numeral 20 denotes a clamper mechanism 20 for clamping the front end of the cut recording paper 2A, which is composed of a movable clamp member 20A movable around a rotary shaft 21 and a fixed clamp member 20B fixed to the recording apparatus 1. Become. The movable clamp member 20A is driven by a drive mechanism (not shown).

Reference numeral 22 denotes a paper feed lever 22 for vertically moving the bottom plate 3 of the recording paper storage unit 2, which is rotatably provided around a shaft 22A. This paper feed lever 22 is
When the protrusion 22B is pushed leftward in the figure by a drive mechanism (not shown) (for example, a drive mechanism using a motor as a drive source), the protrusion 22B rotates in the direction of arrow 23. By rotating the paper feed lever 22 in this manner, the bottom plate 3 of the recording paper storage unit 2 rotates about a rotation shaft (not shown), and the front end 3A of the bottom plate 3 rises. Further, from the position where the front end 3A of the bottom plate 3 is most raised, the paper feed lever 22 is rotated in the direction opposite to the arrow 23, and the bottom plate 3 of the recording paper storage unit 2 is lowered by its own weight. By rotating the paper feed lever 22 in this manner,
The bottom plate 3 moves up and down.

Next, the operation of the separating mechanism section 30 will be described together with the operation of the recording apparatus 1 with reference to FIGS. First,
The cut-end recording paper 2A is stored in the recording paper storage unit 2 by sliding the rear end regulating member 9 of the recording paper storage unit 2. Immediately after the cut recording paper 2A is stored, the vicinity of the separation mechanism 30 of the recording paper storage 2 is in the state shown in FIG. As shown in the figure, the separation pin levers 7R and 7L of the separation mechanism 30 are
The stopper pins 11R and L regulate the downward direction with a distance 1 between the lower surface of the separation pins 8R and L and the lowermost recording paper 2A. Since this distance 1 is larger than the thickness of a predetermined number of recording papers, the separation pins 8R, L are attached when the recording papers are mounted.
It can be done without touching. In addition, the upper portions of the separation pin levers 7R and 7R that are in the downwardly regulated position as described above are located below the paper feed guide plate 31 that serves as a paper feed path for the recording paper 2A. The thermal head 12 is in the set position where it is not pressed against the platen roller 13, and the movable clamp member 20A is in the clamp position.

Next, when a paper feed operation for feeding the cut recording paper 2A is performed, the state shown in FIG. 4 is obtained. As shown in the figure, the paper feed lever 22 is rotated upward by a drive mechanism (not shown) to raise the bottom plate 3 of the recording paper storage unit 2. This rise of the bottom plate 3 is caused by the cut recording paper 2A loaded.
Is performed until the uppermost part of the sheet comes into contact with the sheet feeding / discharging roller 24. Further, as the bottom plate 3 rises, the uppermost cut recording paper 2A pushes up the separation pins 8R and L of the separation mechanism 30. As shown in the figure, when the uppermost portion of the cut recording paper 2A is in contact with the paper feeding / discharging roller 24, the separation pin 8R,
L is located above the paper feed guide plate (conveyance path) 31. Further, the movable clamp member 20A is
The drive mechanism rotates counterclockwise about the rotation shaft 21 and stops at a predetermined position.

From the above-mentioned state, when the paper feeding / discharging roller 24 rotates counterclockwise, the recording paper 2A which is in contact with the paper feeding / discharging roller 24 is pushed toward the platen roller 13 side. Separate pin lever 7 on both sides of the tip
Since it is in contact with the tip portions of R and L, both sides are bent. When the paper feeding / discharging roller 24 is further bent due to the rotation, the separation pin 8 is caused by the elastic force of the recording paper 2A.
After deviating from R and L, the recording paper 2A is conveyed onto the paper feed guide plate 31. Here, since the separation pins 8R and L are located above the paper feed guide plate 31, when the recording paper 2A is disengaged from the separation pins 8R and L, the leading end of the recording paper 2A is reliably fed. It comes to rest on the plate 31. The uppermost cut recording paper 2A separated in this way is conveyed on the paper feed guide plate 31 by the paper supply / discharge rollers 24, passes between the platen roller 13 and the thermal head 12, and is a stopper portion of the movable clamp member 20A. Reach up to 20C. When the leading edge of the cut recording paper 2A reaches the stopper portion 20C of the movable clamp member 20A, a detection device (not shown) installed in the movable clamp member 20A detects it, and the rotation operation of the paper feed / discharge roller 24 is started. Locked and movable clamp member 20
A rotates to the clamp position to clamp the leading end of the cut recording paper 2A. When the front end of the cut recording paper 2A is clamped, the paper feed lever 22 is rotated in the opposite direction (downward) to that during the paper feed operation, and the bottom plate 3 of the recording paper storage unit 2 is lowered. When the bottom plate 3 descends to the lowermost portion, the uppermost cut recording paper 2A separates from the separating pins 8R and 8L of the separating mechanism 30,
Similarly, the separation pin lever 7 in the downwardly regulated position
The upper portions of R and L are located below the paper feed guide plate 31 of the recording paper 2A. Further, as the bottom plate 3 is lowered, the stacked recording paper 2A is also lowered, so that the paper feeding / discharging roller 24 and the recording paper 2A are separated from each other, and the paper feeding / discharging roller 24 and the recording paper 2A are kept until the next paper feeding operation. It is always separated from the recording paper 2A.

When an operation for recording operation is performed from the above-mentioned state, the thermal head 12 is moved to the platen roller 1 by the thermal head 12.
The recording operation is performed by pressing the recording medium onto the recording medium 3. The state during this recording operation is shown in FIG. By the way, the recording apparatus 1 of the present embodiment
In order to sequentially record the color inks sequentially applied to the transfer paper 14 on the recording paper 2A as described above, the recording paper 2
Move A back and forth. When the recording sheet 2A is fed back, the separating mechanism 30 is located below the paper feed guide plate 31 which is a path when the recording sheet 2A is fed backward, as shown in FIG. Then, it is returned to the recording paper storage unit 2.

As described above, the separation mechanism 30 for the recording paper 2A provided in the recording apparatus 1 of this embodiment has a small number of parts, but the recording paper 2A is stacked by the separating claws. It is possible to reliably separate the uppermost recording paper 2A. In the recording apparatus 1 of the present embodiment, which reciprocates the recording paper 2A at the time of recording, the separation mechanism 30 is located below the paper feed guide plate 31 at the time of recording, and thus the recording paper 2A Separation mechanism 3 for reverse delivery
0 does not get in the way. Further, since the inside of the recording paper storage unit 2 can be used as a retracted position of the recording paper 2A, the recording device 1 can be downsized.

[0018]

As described above, according to the recording apparatus of the present invention, the recording paper separating means has the separating claw of the recording paper separating means when the conveying roller is in contact with the cut recording paper. Since it is held at a position higher than
The separated uppermost cut recording paper is surely conveyed on the conveying path. Further, the recording paper separating means is the maximum when the recording paper separating means is at a position lower than the conveying path and the cut recording paper is maximally accommodated in the recording paper accommodating means when the conveying roller and the cut recording paper are separated from each other. Since the upper cut recording paper and the separation claw are held at positions separated from each other, by reciprocating the cut recording paper, the color ink on the transfer paper is thermally transferred to the cut recording paper in a frame sequential manner for recording. The recording paper storage portion can be used as a retracted position of the cut recording paper during the recording operation, and the separation claw does not get in the way when the cut recording paper is detached.

[Brief description of drawings]

FIG. 1 is an external perspective view of a recording apparatus that is an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of a recording paper storage unit 2.

FIG. 3 is a vertical cross-sectional view of a main part of the recording apparatus 1 (immediately after recording paper is stored).

FIG. 4 is a vertical cross-sectional view of a main part of the recording apparatus 1 (when recording paper is fed).

FIG. 5 is a vertical cross-sectional view of a main part of the recording apparatus 1 (during recording paper operation).

FIG. 6 is a diagram for explaining a FRR method, which is one of conventional sheet feeding mechanisms.

FIG. 7 is a view schematically showing a recording paper tray having a conventional separating claw.

[Explanation of symbols]

 1 Recording Device 2 Recording Paper Storage (Recording Paper Storage Means) 2A Cut Recording Paper 3 Bottom Plate (Tray) 4 Recording Paper Storage Frame 5R, L Width Regulation Plate 7R, L Separation Pin Lever 8R, L Separation Pin 10 Thermal Head Mechanism 11R, L Stopper pin 12 Thermal head 13 Platen roller 14 Transfer paper 14A, B Transfer paper roll 20 Clamper mechanism part 20A Movable clamper 20B Fixed clamper 22 Paper feed lever 24 Paper feed / discharge roller (conveying roller) 30 Separation mechanism (recording paper separation) Means) 31 paper feed guide plate (conveyance path)

Claims (1)

[Claims] 1. A recording paper accommodating means for accommodating and accommodating cut recording paper on a vertically movable tray, and a conveying roller for conveying the cut recording paper accommodated in the recording paper accommodating means on a conveying path. And a recording paper separating means provided so that the separation claw for separating one cut recording paper housed in the recording paper housing means moves up and down by contact with the vertical movement of the cut recording paper. By moving the tray of the recording paper accommodating means up and down, the cut recording paper and the feed roller are brought into contact with and separated from each other, and when the feed roller and the cut recording paper are in contact with each other, the feed roller is used to feed the paper. A recording device for reciprocally moving the cut recording paper to thermally transfer the color inks on the transfer paper to the cut recording paper in a frame-sequential manner, wherein the recording paper separating means includes the conveying roller and the cut recording paper. But In this state, the separation claw of the recording paper separating means is held at a position higher than the conveying path, and when the conveying roller and the cut recording paper are separated from each other, the recording paper separating means moves from the conveying path. Also, the recording device is held at a position where the cut recording paper at the uppermost position when the cut recording paper is maximally stored in the recording paper storage means and the separation claw are separated from each other.