JP2565565Y2 - Cutter equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a cutter device for cutting a recording sheet after recording in a recording apparatus such as a facsimile apparatus using roll paper as the recording sheet, and in particular, is provided adjacent to a recording sheet discharge tray. It relates to a cutter device.

[0002]

2. Description of the Related Art In a recording apparatus such as a facsimile apparatus using roll paper as recording paper, a cutter device combining a fixed blade and an oscillating movable blade is provided in a recording paper discharge path in the apparatus, and a recording apparatus after recording is provided. 2. Description of the Related Art Sheets having an automatic cut function of cutting a recording sheet into an appropriate size and discharging the sheet have become widespread.

The outline of a cutter device in a conventional recording apparatus will be described below with reference to FIG. In FIG. 5, the cutter device Ct is provided adjacent to a recording paper discharge tray (hereinafter, also simply referred to as a discharge tray) 6. Reference numeral 4 denotes a movable blade composed of a support part 4a and a blade part 4b, and reference numeral 5 denotes a fixed blade composed of a support part 5a and a blade part 5b. The movable blade 4 swings around the support shaft 18 to the position shown by the one-dot chain line in the figure, meshes with the fixed blade 5 and cuts the recording paper after recording. Reference numeral 2 denotes a thermal head, and reference numeral 3 denotes a platen roller which presses against the thermal head 2 and positively rotates. P2 indicates a thermal roll paper used as a recording paper. The recording paper P2 is conveyed in contact with the thermal head 2 by the rotation of the platen roller 3, and is subjected to thermal recording based on image data.
The sheet is conveyed between the nip and the fixed blade 5, cut by being engaged with each other, and discharged onto the discharge tray 6.

[0004]

At this time, the recording paper P1 previously recorded, cut, and discharged may exist in the discharge tray. At this time, the recording paper P1 is curved by the curl and swells upward. For this reason, the cut recording paper P2 is prevented from being discharged along the discharge tray 6, and the recording paper P2 having lost the discharge path is discharged from the discharge tray 6.
Paper jams could occur at the beginning.

The present invention solves the above-described problems, and can reliably prevent the recording paper from being jammed even if the previously discharged recording paper is on the discharge tray with a simple configuration. It is an object to provide a cutter device.

[0006]

In order to achieve the above-mentioned object, a cutter device according to the present invention is provided with a flexible guide member for pressing a discharged recording paper against a recording paper discharge tray on a movable blade. It is characterized by that.

[0007]

According to the cutter device of the present invention, since the flexible guide member provided on the movable blade presses the discharged recording paper against the discharge tray, the curvature of the recorded recording paper is corrected, The state follows the discharge tray. Thereby, a discharge path for the recording paper discharged later is secured, and the recording paper is smoothly discharged onto the discharge tray.

[0008]

Embodiments will be described below with reference to the drawings. FIG. 1 is a side sectional view showing a schematic configuration of a facsimile apparatus to which a cutter apparatus C according to an embodiment of the present invention is applied.

First, an outline of the entire apparatus will be described with reference to FIG. In FIG. 1, reference numeral 1 denotes a facsimile apparatus main body. A reading unit R is provided from a front part to a lower half part of the apparatus main body 1. The reading unit R includes a transport system including an original tray 8, a separate roller 9, an extract roller 19, and a pinch roller 20 provided on the upper surface of the apparatus main body, a light source such as an LED array, mirrors 11, 12, a lens 13, a CCD, and the like.
And an optical system including a photoelectric conversion element.
Documents placed on the document tray 8 are separated by rollers 9.
Then, the sheet is separated and conveyed one by one by a separate pad 21 pressed against the separate roller 9, and irradiated with light from a light source 10. The light reflected from the original is
The light is reflected on the light sources 1 and 12, collected by the lens 13, read as image data by the photoelectric conversion element 14, and then transmitted to the receiving side through a telephone line. The read original is discharged out of the apparatus by the action of the positively rotating extract roller 19 and the pinch roller 20 which is pressed against and driven by the extract roller 19.

At a substantially central portion of the apparatus main body 1, a thermosensitive recording paper P wound in a roll shape is rotatably supported by a main frame F of the apparatus main body. A recording unit K is provided along a conveyance path of the recording paper P indicated by a chain line arrow in the drawing. The recording unit K includes a thermal head 2, a platen roller 3 pressed against the thermal head, a cutter device C including a movable blade 4 and a fixed blade 5, and a recording paper discharge tray 6 adjacent to the cutter device C. The movable blade 5 of the cutter device C is provided with a flexible guide member 7 such as a plastic film.

When image data is sent from the transmission side via a telephone line, the recording paper P is conveyed in contact with the thermal head 2 by the rotation of the platen roller 3, and the thermal head 3 is moved based on the image data. Is heated for each dot, an image is recorded on the recording paper P based on the image data. When the recording of one document is completed, the cutter device C cuts the recording paper P and discharges the recording paper P onto the discharge tray 6.

Next, the configuration of the cutter device C will be described in detail with reference to FIGS. FIG. 2 shows a state in which the movable blade 4 and the fixed blade 5 are separated without engaging with each other, that is, a standby state. 4 is a side view of FIG. 2 as viewed in the direction of the arrow A, and FIG. 3 is a side view of the state in which the movable blade 4 and the fixed blade 5 are engaged with each other, as viewed in the direction of the arrow A. Reference numeral 17 denotes a cutter frame that supports the movable blade 4 and the fixed blade 5. The movable blade 4 has a substantially L-shaped support portion 4.
a and the blade portion 4b. The blade portion 4b is fixed to an L-shaped vertical portion of the support portion 4a with screws or the like. One end (right side in the figure) of the support portion 4a is attached to the cutter frame 17 via a support shaft 18. The other end of the support 4a (left side in the figure)
Is provided with a swing arm 16, and the swing arm 16 is
It is swingably attached to the cutter frame 17 via the support shaft 16a. When the swing arm 16 swings about the support shaft 16a, the entire movable blade 4 swings about the support shaft 18. The support shaft 18 has a slight inclination with respect to the fixed blade 5.

A crank arm 15 is swingably connected to an end of the swing arm 16 opposite to the movable blade support 4a via a shaft 15b.
a, it is attached to the gear G. The gear G is a frame (not shown) provided outside the cutter device C.
3 and 4 via a shaft Ga (see FIGS. 3 and 4), meshes with a worm W provided on the rotation shaft of the drive motor M, and rotates about the shaft Ga in the direction of the arrow in the figure. A flexible guide member 7 extends in the horizontal direction of the L-shaped movable blade support portion 4a, that is, the portion where the blade portion 4b is not provided, in the recording paper conveyance direction (the arrow direction in the drawing). And the guide member 7
The recording paper P ′, which has been recorded, cut, and discharged first, is pressed against the discharge tray 6.

Next, the operation of the cutter device C will be described with reference to FIGS. When the motor M rotates in the standby state (shown in FIG. 4), the worm W provided on the rotating shaft rotates, and the gear G meshing with the worm W rotates in the direction of the arrow in the figure. By the rotation of the gear G, the swing arm 16 swings around the shaft 16a via the crank arm 15, and the movable blade 4 swings around the shaft 18 to mesh with the fixed blade 5 (see FIG. 3). Shown). Thereafter, when the motor M further rotates, the swing arm 16 swings the movable blade 4 about the shaft 18 in a direction in which the swing blade 16 separates the movable blade 4 and the fixed blade 5 by the gear G and the crank arm 5, and the cutter device C Return to the standby state.

After the recording paper P is thermally recorded by the thermal head 2 based on the image data, the movable blade 4 and the fixed blade 5 of the cutter device C in a standby state by the platen roller 3.
Conveyed during When the recording of one document is completed, the platen roller 3 conveys the recorded portion of the recording paper P to the discharge tray side, and then the cutter device C operates to move the movable blade 4.
Swings about the shaft 18 and engages with the fixed blade 5 to cut the recording paper and discharge it to the discharge tray.

In the above operation, when the movable blade 4 and the fixed blade 5 are engaged with each other, the guide member 7 is lifted upward, so that the recording paper P 'discharged earlier is curled up by the curl. Inflated. Recording paper P after recording
Is conveyed onto the discharge tray through the movable blade 4 and the fixed blade 5 of the cutter device in the standby state. As described above, in the standby state, the guide member 7 moves from the support member 4a to the discharge tray 6 in the standby state. The recording paper P ′, which has been extended toward and discharged earlier, is pressed against the discharge tray. Therefore, the recording paper P ′ is prevented from swelling upward, and is in a state along the discharge tray 6. The recording paper P after recording is smoothly transported on the discharge tray while releasing the contact between the guide member 6 and the previous recording paper P ′.
The recording paper P ′, which has swelled upward at the start end, does not deprive the discharge path and causes paper jam.

In this embodiment, the thermal paper is used as the recording paper P. However, as long as the roll paper is used, when the present invention is applied to a thermal transfer recording type recording apparatus, plain paper is used as the recording paper P. It is also possible to use.

[0018]

As described above, according to the cutter device of the present invention, in the recording device using the roll paper for discharging the cut recording paper onto the discharge tray adjacent to the cutter device, the movable blade is flexible. By suppressing the upward swelling of the recording paper previously discharged onto the discharge tray by a very simple method such as providing a flexible guide member, a conveyance path for the recording paper after recording can be secured, An excellent effect is obtained that a recording paper jam at the tray start end can be prevented.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a schematic configuration of a facsimile apparatus to which an embodiment cutter device is applied.

FIG. 2 is a perspective view illustrating a standby state of the cutter device according to the embodiment.

FIG. 3 is a side view showing a state where a movable blade and a fixed blade of the cutter device of the embodiment are engaged with each other.

FIG. 4 is a side view illustrating a standby state of the cutter device according to the embodiment.

FIG. 5 is a schematic view showing a conventional technique.

[Explanation of symbols]

 Reference Signs List 4 movable blade 5 fixed blade 6 discharge tray 7 guide member C cutter device P recording paper P '

Claims (1)

(57) [Scope of request for utility model registration] And a recording paper discharge tray provided adjacent to the recording paper discharge tray.
A cutter device for cutting a recording sheet by swinging a movable blade about a support shaft and meshing with a fixed blade, wherein the flexible guide member presses the discharged recording sheet against a recording sheet discharge tray. When the movable blade is not operated,
Material is pressed against the output tray in an elastically deformed state.
Cutter and wherein the was eclipsed.