JPH04175177A - Recording paper cutter - Google Patents

Abstract

PURPOSE:To cut paper parallel to a paper feed direction by a method wherein a pair of disk-form cutting blades are provided for cutting recording paper, and one of the cutting blades can cut the paper also in parallel to the feed direction of said recording paper by a ring mechanism and a drive part, such as a solenoid. CONSTITUTION:When an upper cutting blade 12 is raised, the upper cutting blade 12 is pressed against a cam inclined surface 21a of a cam plate 21 by a coil spring 20, and the blade 12 is held with a gap C1 from the cam plate and a gap (e) from a lower cutting blade 10. When a solenoid is driven to lower a lever 13 from this state, the upper cutting blade 12 slides down along the cam inclined surface 21a to abut on the side face of the lower cutting blade 10, thus resulting in the clearance (e) reduced to zero and the gap C1 between the cam plate 21 and the upper cutting blade 12 reduced to a gap C2. If recording paper 1 is fed in this state, the upper and lower cutting blades rotatively cut the recording paper 1 in the feed direction thereof. In addition, the roll paper is cut at right angles to the paper feed direction by a cutting blade 18. By providing projections (f) all over the outer periphery of the upper cutting blade 12, the paper is perforated at a line C so that the paper can be cut off afterward by hands as required.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a facsimile receiving device that cuts and perforates a roll of recording paper parallel to the paper feeding direction.

[Conventional technology]

A conventional device, as described in Japanese Utility Model Application Publication No. 63-31972, is a recording paper cutting device that cuts a roll of recording paper only at right angles to the paper feeding direction.

In such a facsimile machine, for example, when a B4 size recording paper is set and an A4 size document is received, there will be a margin of approximately 41 mm on one side of the recording paper, which will be
When binding files into 4-size files, this margin becomes a nuisance and requires the effort of cutting with a cutter or the like.

In addition, in order to improve these drawbacks, the recording paper is A4.
There is also a facsimile machine that can be set twice as B4 and automatically select the recording paper according to the size of the original to be sent, but the disadvantage is that the apparatus is large and the automatic recording paper selection mechanism is complicated, increasing the cost of the apparatus.

[Problem to be solved by the invention]

The above-mentioned conventional technology cuts the rolled recording paper only at right angles to the paper feeding direction, and due to the structure of the cutter, it is difficult to incorporate a cutting mechanism that can also cut parallel to the paper feeding direction.

In addition, when a pair of disc-shaped cutting blades is installed, there are conditions for whether or not the recording paper will be cut, and the cutting blades must move up and down with zero clearance, and the blades may gnaw during their engagement. There was a problem.

An object of the present invention is to incorporate a pair of disc-shaped cutting blades so that cutting can be performed parallel to the paper feeding direction, and to enable smooth engagement of the cutting blades with zero clearance.

[Means to solve the problem]

In order to achieve the above object, a pair of disc-shaped cutting blades and a drive mechanism thereof are incorporated between the cutter and the discharge roller.

Furthermore, in order to enable smooth engagement of the cutting blade with zero clearance, the cutting blade is pressed against the cam plate by a coil spring, and there is a gap until the cutting blade is engaged, and when it is engaged, the coil spring and the cam The gap is set to zero.

[Effect]

A pair of disc-shaped cutting blades are installed between the cutter and the ejection roller, so even after a large cut is made with the cutter, the paper is ejected by the ejection roller while cutting parallel to the paper feed, resulting in paper jams. do not.

When the blades are engaged, there is a gap between the coil spring pressing the cutting blade against the cam plate and the engagement.When the blade engages, the cam is released and the upper cutting blade is pressed against the cam plate by the coil spring. The paper adheres more closely, and the meshing clearance is zero, so the paper does not become sharp.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 10.

FIG. 1 shows a method of cutting a roll of recording paper 1. As shown in FIG. Second
The figure shows the facsimile receiving device with base cover 2.
Attach chassis 3 to , and attach head roller 4 to this. Cutter 5. Assemble the discharge roller 8.

The upper cover also includes a thermal recording head 6 and a coil spring 7 that pressurizes it. Attach the discharge roller 9 and stopper 23.

Further, a combination of a lower cutting blade 10 and a cutting blade holder, a combination of an upper cutting blade 12 and a lever 13, and a solenoid 14 are attached to the cutter. FIG. 3 is a partial view of recording paper cut by rotating the cutting blade 18 of FIG. 2, and FIG. 4 shows a shaft 17 inserted into the upper cutting blade and fixed to the lever 17 so as to rotate. The upper cutting blade is assembled so as to be pressed against the cam plate by a coil spring 20.

Further, the lower cutting blade 10 is assembled into the cutting blade holder 11 via a shaft 17, and a gear 1 for driving the shaft is installed.
Install 5.

Components and symbols in FIGS. 5 to 9 are the same as those described above, and therefore will be omitted.

Figure 5 is a perspective view of Figures 3 and 4 with the top cover removed, Figure 6 is a state in which the cutting blade 12 is raised, and Figure 7 is a side view of the upper and lower cutting blades. , Figure 8 shows the upper cutting blade 1
2 is lowered to cut the recording paper 12, and FIG. 9 shows a side view of the upper and lower cutting blades.

FIG. 10 is a flowchart for explaining a method of cutting a roll of recording paper in this facsimile receiving device, and FIG. 11 is a flowchart for explaining a method of making perforations C in a roll of recording paper 1. FIG. 12 shows an upper cutting blade 12 in which protrusions f are provided around the entire circumference, and FIG. 12 shows a sectional view from the center thereof.

Based on the above-described configuration, when reception of a transmitted document is started, control operations as shown in the flowchart of FIG. 1O are performed.

That is, a B4 size recording paper 1 is set in this apparatus, and if the size of the original to be sent is A4, a signal is input to the solenoid drive circuit shown in FIG.
The solenoid 14 lowers the upper cutting blade 12 attached to the lever 13 via the shaft 17, and at the same time rotates the lower cutting blade 10 via the gear 15 attached to the shaft 17. The driving force of the gear 15 drives the discharge roller 8 via the head roller 4 and the gear 16. It is driven simultaneously by a motor and a drive gear (not shown).

When recording is completed, the recording motor is turned off, and the head roller 4 connected to it is turned off. The discharge roller 8 and the lower cutting blade stop rotating, the cutting drive motor (not shown) of the cutter operates, the cutting blade 18 rotates, and the cutting is completed perpendicular to the feeding direction of the roll paper.

After that, the recording motor turns ONL, the ejection roller 8° and the lower cutting blade 10 rotate, and the recording paper 1 and the recording paper margin 1 are rotated.
Complete the discharge of a.

Furthermore, when the size of the transmitted document is B4, the solenoid 14 does not operate, so the cutting line 6 parallel to the direction in which the roll of recording paper 1 is fed is not made, and the operation is the same as that of a conventional facsimile, so the explanation will be omitted. .

Next, the operation of engaging the upper and lower cutting blades will be explained with reference to FIGS. 6 to 9.

When the upper cutting blade 12 is raised, the cam plate 2
The upper cutting blade 12 is attached to the cam inclined surface 21a of the coil spring 2.
0 to maintain a gap c1 with the cam plate and provide a gap e with the lower cutting blade 10.

From this state, when the solenoid is driven and the lever 13 is lowered, the upper cutting blade 12 slides on the cam inclined surface 21a and hits the side surface of the lower cutting blade 10, and the clearance d becomes zero and comes into close contact with the cam plate 21. The gap C1 with the upper cutting blade 12 becomes small to C2, and in this state, the recording paper 1
When the recording paper 1 is fed, the upper and lower cutting blades rotate and cut the recording paper 1 in parallel to the feeding direction.

Therefore, according to this implementation, the received manuscript is output with the margins automatically cut to the exact size according to the size of the transmitted manuscript, so the manuscript is easy to see and can be filed as is, saving the trouble of filing. The usability of the facsimile machine is improved, and the upper and lower cutting blades are smoothly engaged by the cam mechanism, making it easy to obtain zero clearance and not damaging the sharpness of the paper.

Alternatively, as shown in FIG. 11, it is also possible to make a perforation C and then cut out that part by hand after receiving it, if necessary. In this case, a protrusion f shown in FIG. 12 is provided on the entire outer periphery of the upper cutting blade 12. This embodiment has the advantage that the received recording paper can be cut out along the perforations depending on the purpose of use.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces the effects described below.

The received document is output with margins automatically cut to the exact size and perforated according to the size of the sent document, making the document easy to view and saving time when filing files.

Furthermore, since this cutting mechanism can be compactly incorporated into a facsimile machine, the size of the machine does not increase.

[Brief explanation of the drawing]

FIG. 1 is a perspective view for explaining the cutting state of a roll of recording paper according to an embodiment of the present invention, FIG. 2 is a sectional view showing the configuration of a facsimile receiving apparatus of the present invention, and FIG. A sectional view for explaining the cutting mechanism, Fig. 4 is A- in Fig. 3.
A sectional view, FIG. 5 is a perspective view illustrating the cutting mechanism in FIGS. 4 and 5, FIGS. 6 and 8 are sectional views illustrating the engagement of the cutting blades, and FIG. Side view, Figure 9 is the 8th
10 is a flowchart for explaining the operation of the facsimile receiving device; FIG. 11 is a perspective view for explaining the state in which perforations are made in a roll of recording paper;
FIG. 12 is a plan view showing a cutting blade for making the perforations, and FIG. 13 is a sectional view of the cutting blade. 1...Rolled recording paper 2...Base cover 3...
・Chassis 4...Head roller 5...Cutter frame 6...Thermal head 7...Coil spring
8, 9...Discharge port-ra 10...Lower cutting blade
11... Cutting blade holder 12... Upper cutting blade
13... Lever 14... Solenoid 15.1
6...Gear 17...Shaft 18...
Cutting blade 19...Top cover 20...Coil knob 21...Cam plate 22...Bin 21a
...Cam inclined surface 1a...Recording paper margins a, b...
・Cutting line C,, C2...Gap e...Gap
f...Protrusion 23...Stopper

Claims (1)

[Claims] 1. A facsimile machine that cuts continuously supplied roll-shaped recording paper, which has a pair of disk-shaped cutting blades for cutting the recording paper, one of which A recording paper cutting device characterized in that the cutting blade can also cut parallel to the feeding direction of the recording paper using a link mechanism and a drive unit such as a solenoid. 2. In a facsimile machine that makes perforations parallel to the feeding direction of a roll of recording paper that is continuously fed, a plurality of protrusions are provided on the circumference of one cutting blade in order to make perforations in the recording paper. A recording paper cutting device characterized by being provided with. 3. In a facsimile machine that cuts or perforates continuously fed roll recording paper in parallel to the feeding direction, a cutting blade having a plurality of protrusions on the circumference as described in 2 above is used. A recording paper cutting device characterized in that cutting and perforation can be selected by adjusting a stopper provided in a part of a link mechanism. 4. In the engagement mechanism of a pair of upper and lower disc-shaped cutting blades, a coil spring presses the cutting blades against a cam plate, a gap e is provided between the upper and lower cutting blades, and when the cutting blades are engaged, the cam and coil spring A recording paper cutting device characterized in that the gap becomes zero.