JP2716353B2 - Facsimile round blade rotary cutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary cutter for facsimile round blades, and more particularly, to cutting a roll of recording paper recorded by facsimile, in which a pair of rotary blades are provided on a tool rest in opposite directions. The facsimile circle is designed to be able to cut the recording paper in each of the left and right directions of the turret, and to extend the useful life of the rotary blade. It relates to a blade rotary cutter.

[0002]

2. Description of the Related Art Conventionally, as a rotary cutter of a round blade of this type of facsimile, for example, the one shown in Japanese Utility Model Laid-Open No. 2-135195 is known as a representative one. As shown in FIG. 2, this conventional example has a pair of rotating blades 21 and 21a which are open and pivoted with respect to each other as rotary blades for cutting roll paper for recording. 21,
Pulleys 25, 25a are fixed coaxially with 21a, and a wire 24 having both ends fixed to both ends of the tool rest guide 23 is wound around the pulleys 25, 25a.

A pulling wire 27 is moved along a tool post guide 23.
When the tool rest 22 moves in the left-right direction, for example, the left (A) direction, the left rotary blade 21 has a wire 24 wound around a pulley 25 fixed on the same axis as its support shaft. The roll paper is rotated to the left, and the roll paper sandwiched between the rotary blade 21 and the receiving blade is cut at a cutting portion below and to the left from the center of the rotary blade 21 that is inclined and pressed against the blade edge of the receiving blade.

Conversely, when the tool rest 22 moves in the right (B) direction, the right rotary blade 21a rotates clockwise, and the right rotary blade 21a moves downward from the center of the rotary blade 21a pressed against the cutting edge of the receiving blade. Cut the roll paper at the cutting section.

[0005] Accordingly, the recording paper is cut in any traveling stroke in which the tool rest 22 moves in the left-right direction along the tool rest guide 23, so that the cutting time can be shortened and the life of the rotary blade can be greatly extended. Become.

[0006]

In the above-described conventional rotary cutter of a round blade of a facsimile, a wire for rotating a rotary blade which is opened in opposite directions and inclined and pressed against a fixed blade is supported by the rotary blade. The wire is wound around a pulley that is open and inclined with a common shaft.The wire is dislodged from the pulley, and the wire is damaged due to wear with the pulley. There was a drawback that inviting was inevitable.

An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide a round blade rotary cutter capable of guaranteeing stable rotary cutting of a rotary blade and remarkable extension of life.

[0008]

According to the present invention, there is provided a round blade rotary cutter for a facsimile, comprising: a fixed blade disposed in a main scanning direction of a recording sheet in a facsimile; A facsimile having a pair of rotating blades which are provided at a predetermined opening angle in opposite directions to each other and are inclined while being pressed against the fixed blade to rotate and move right and left to cut the recording paper. In the round blade rotary cutter, two pairs of the first bevel gears disposed on the respective support shafts of the two pairs of the rotary blades are fitted with both of the two pair of the first bevel gears. A second bevel gear that fits, a first spur gear disposed on a support shaft of the second bevel gear, a second spur gear that fits with the first spur gear, And a pulley provided on a support shaft, and wound around a groove of the pulley. Driven by a motor, the pulley is repeatedly moved left and right above the fixed blade so that the fixed blade and the rotary blade cut the printed recording paper in each of the left and right movements of the rotary blade. A wire and a pair of left and right microswitches for recognizing the arrival of a limit for repeating the right and left movements of the rotary blade.

Further, another rotary cutter of a round blade of a facsimile of the present invention has a configuration in which a pinion gear is used in place of the pulley and a rack is used in place of the wire.

[0010]

Next, the present invention will be described with reference to the drawings. FIG. 1 is a front view (a) and a plan view (b) showing the configuration of a rotary cutter of a round blade of a facsimile according to one embodiment of the present invention. In the present embodiment, a pair of fixed blades 1 arranged in a rail shape in the main scanning direction, and a pair of recording blades arranged so as to be cut and interposed between the fixed blades 1 and opened in opposite directions to each other. As the first bevel gears (A) 2 (for forward cutting) and (B) 3 (for backward cutting), and the first bevel gears disposed on the respective spindles of the rotary blades (A) 2 and (B) 3 Bevel gears 7 and 8, bevel gear 9 as a second bevel gear fitted with bevel gears 7 and 8, and spur gear 10 as a first spur gear provided on a support shaft of bevel gear 9
And a wire 5 driven by a motor (not shown), a pulley 12 around which the wire 5 is wound, and a spur as a second spur gear disposed on the support shaft of the pulley 12 and fitted to the spur gear 10. A gear 11, a leaf spring 6 having both ends fixed to the fixed blade 1 and the rotary blades (A) 2 and (B) 3 wound around the pulley 12 constantly pressed to the fixed blade 1, and both ends of the fixed blade 1 are arranged. FIG. 1 also shows a recording paper discharge port 13 for discharging recording paper.

The rotary blades (A) 2 and (B) 3 are disposed at a predetermined open angle and inclined, respectively, and bevel gears 7 and 8 are disposed on respective support shafts. The bevel gear 9 is fitted with bevel gears 7 and 8 attached to the rotary blades (A) 2 and (B) 3, and the angles formed by the support shafts of the bevel gears are the rotary blades (A) 2 and (B). 3) The angle is equal to 3. A spur gear 10 is arranged on a support shaft of the bevel gear 9. A spur gear 10 is provided on the shaft of the pulley 12.
And a wire 5 is wound around the pulley 12, and both ends of the wire 5 are fixed to both ends of the fixed blade 1.

Recording paper outlet 13 Printed recording paper is discharged, and the rotary blade set, which has been in a waiting state at the position of microswitch 6a, is driven by wire 5 driven by the motor to rotate microswitch 6b on the opposite side. , The pulley 12 around which the wire 5 is wound rotates. Thus, the spur gear 1 disposed on the pulley 12
1 rotates, further the spur gear 10 and the bevel gear 9 rotate,
Bevel gears 7 and 8, thus rotary blades (A) 2 and (B)
B also rotates. As a result, the rotating blade on the traveling direction side cuts the recording paper between itself and the fixed blade 1.

The rotary blades (A) 2 and (B) 3 are constantly pressed against the fixed blade 1 by the leaf spring 4 and move, and stop when they move to the microswitch 6b at the other end. Next, when cutting the recording paper, the rotary blade set moves in the direction opposite to the above-described operation, and cuts the recording paper between the fixed blade 1 and the rotary blade not used last time.

It is to be noted that a pinion gear can be used in place of the pulley 12 used in the above-described embodiment, and a rack can be used instead of the wire 5 in the same manner.

In this manner, extremely stable movement of the rotary blade can be ensured, and wear of the rotary blade can be significantly suppressed.

[0016]

As described above, according to the present invention, there is provided a rotary facsimile rotary blade for rotating a pair of two rotary blades inclined in an opening direction and cutting a recording paper interposed between the rotary blade and a fixed wave. In the type cutter, a first bevel gear is disposed on a rotary blade, a second bevel gear fitted with the bevel gear is provided, and a first bevel gear disposed on a spindle of the second bevel gear is provided. By providing a second spur gear that fits with the spur gear, and driving a pulley and a wire or a rack and pinion mechanism wound around the pulley on a spindle of the second spur gear by a motor, the rotary blade This has the effect of significantly stabilizing the rotation and prolonging the life.

[Brief description of the drawings]

FIG. 1 is a front view (a) and a plan view (b) showing a configuration of a round blade rotary cutter of a facsimile according to one embodiment of the present invention.
It is.

FIG. 2 is a plan view showing a configuration of a conventional rotary cutter of a round blade of a facsimile.

[Explanation of symbols]

 Reference Signs List 1 fixed blade 2 rotary blade (A) 3 rotary blade (B) 4 leaf spring 5 wire 6a, 6b micro switch 7,8 bevel gear 9 bevel gear 10,11 spur gear 12 pulley 13 recording paper discharge port

Continuation of front page (72) Inventor Seiji Nakanishi 5-7-1 Shiba, Minato-ku, Tokyo NEC Corporation (56) References Hikaru 3-26492 (JP, U)

Claims (2)

(57) [Claims] 1. A fixed blade arranged in a main scanning direction of a recording paper in a facsimile, and the recording paper is clamped between the fixed blade in a printed state and provided at a predetermined opening angle in opposite directions to each other. A facsimile round blade rotary cutter having a pair of rotary blades that cuts the recording paper by moving left and right while rotating while being in contact with and rotating in contact with the fixed blade; A pair of first bevel gears disposed on each support shaft, a second bevel gear fitted with both of the two pair of first bevel gears, and a second bevel gear; A first spur gear disposed on a support shaft, a pulley having the second spur gear disposed on a support shaft, and a pulley wound around a groove of the pulley and driven by a motor to connect the pulley to the fixed blade. The left and right movement is repeated upward, and the fixed blade and the rotary blade A wire for cutting the printed recording paper in each stroke of the left and right movement of the rotary blade,
A round blade rotary cutter for facsimile, comprising: a pair of left and right microswitches for recognizing the arrival of a limit for repeating the right and left movements of the rotary blade. 2. The rotary cutter of a facsimile machine according to claim 1, wherein a pinion gear is used instead of said pulley and a rack is used instead of said wire.