JPS6335400B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a roll paper cutting device for manually cutting roll paper in a facsimile receiver or the like.

Conventional configuration and its problems In facsimile receivers, when replacing a roll of recording paper, it is necessary to install a blade to manually cut an appropriate part on the leading edge of the set recording paper. It is. This is because when a roll of recording paper is replaced, the leading edge of the recording paper is often bent, and if this continues, it will interfere with the feeding of the recording paper. This is because by cutting the tip side, it is possible to obtain a tip portion that is free from bends and the like.

However, in a roll paper cutting device installed in a facsimile receiver, a part of the cutting edge of the knife is always exposed outside the receiver, or the cutting edge of the knife is usually housed inside the receiver. However, when replacing the recording paper, the outside of the receiver was exposed to light.

This has the disadvantage that when replacing the recording paper, the worker's hands, arms, or clothing may come into contact with the edge of the knife, causing injury to the worker or damage to the worker's clothing. It was hot.

Purpose of the Invention The present invention has been made to solve the above-mentioned conventional drawbacks, and the cutting edge of the blade for cutting roll paper is not exposed to the outside under any circumstances, allowing the operator to safely perform tasks such as replacing roll paper. The purpose of the present invention is to provide a roll paper cutting device that can cut paper.

Structure of the Invention The present invention provides a blade support member and a cover support member that are rotatable around different centers, respectively, and are provided with a blade and a blade cover, respectively, and when the blade support member and the cover support member are in the roll paper cutting position. The above object is achieved by making the blade protrude from the blade cover and conversely cause the blade cover to protrude from the blade tip when the blade support member and cover support member are rotated beyond a certain level from the roll paper cutting position. This is what I am trying to do.

DESCRIPTION OF EMBODIMENTS The present invention will be described below based on embodiments shown in the drawings.

1 to 3 show a schematic configuration of a roll paper cutting device according to an embodiment of the present invention. A recording paper storage section 1 is provided in the main body of the facsimile receiver (not shown).
A roll 2a of recording paper 2 is rotatably housed inside. At one end of the recording paper accommodating section 1, there is a recording paper 2 pulled out from the roll 2a.
A receiving portion 1a is provided for receiving.

In the receiver main body, a pair of left and right blade support arms 3 and a cover support arm 4 are rotatably supported via shafts 5 and 6, respectively, near the other end of the recording paper accommodating section 1. Note that the shaft 5, which is the center of rotation of the blade support arm 3, is closer to the receiving part 1 than the shaft 6, which is the center of rotation of the cover support arm 4.
The distance to a has been shortened.

A spring 7 is interposed between the cutter support arm 3 and the cover support arm 4, and this spring 7 urges both arms 3 and 4 toward each other.
A cutter 8 is attached between the tips of the pair of left and right cutter support arms 3, and when the cutter support arm 3 is rotated toward the recording paper storage section 1, the cutter 8 records information on its lower surface in the receiving section 1a. The paper 2 is brought into contact with the paper 2 through its pull-out portion.

Further, a cutter cover 9 is attached between the tips of the pair of left and right cover support arms 4, and this cutter cover 9 is pressed against the upper surface of the cutter 8 by the biasing force of the spring 7. 10 is a brake plate attached to the shaft 5, and the roll 2 is moved by its own weight.
When the recording paper 2 is pulled out from the roll 2a, the roll 2a is braked so that the roll 2a does not rotate more than the amount that the recording paper 2 is pulled out due to inertial force. It is something to do.

Next, the operation of the apparatus of this embodiment will be explained.

When replacing the recording paper 2, the knife support arm 3 and the cover support arm 4 are rotated to a position where they are separated from the recording paper storage section 1 as shown in FIG.
A new roll 2a is stored in the recording paper storage section 1, and the leading end of the recording paper 2 is pulled out from the roll 2a to the front of the receiving section 1a.

At this time, since the shaft 5 is closer to the receiving part 1a than the shaft 6, when the knife support arm 3 and the cover support arm 4 are in the position shown in FIG. 3, the knife cover 9 protrudes from the cutting edge of the knife 8. do. In other words, since the knife 8 is protected by the knife cover 9, when replacing the recording paper 2 as described above,
There is no risk that the worker's hand, arm, or clothing will come into contact with the cutting edge of the knife 8 and cause injury to the worker or damage to the worker's clothing, unlike in the conventional case.

Next, when the recording paper 2 has been set as described above, the knife support arm 3 and cover support arm 4 are rotated toward the recording paper accommodating section 1 side as shown in FIG. The recording paper 2 comes into contact with the receiving portion 1a via the pull-out portion.

Then, since the shaft 5 is located closer to the receiving part 1a than the shaft 6, the rotation of the arms 3 and 4 causes the cutter 8 and the cutter cover 9 to be shifted relative to each other.
This time, the cutter 8 is in a state of protruding from the cutter cover 9.

Therefore, in the state shown in FIG. 2, the recording paper 2
By grasping the portion pulled out from the receiving portion 1a by hand, the leading edge side of the recording paper 2 can be cut with the blade 8 without being obstructed by the blade cover 9.

Thereafter, the recording paper 2 is fed in the state shown in FIG. 2, but in the state shown in FIG. 2, the cutter 8 is housed in the receiver body, so There is no risk that clothes or clothing may come into contact with the cutting edge of the knife 8.

Effects of the Invention As described above, in the roll paper cutting device according to the present invention, the blade support member and the cover support member, which are rotatable around different centers, are provided with a blade and a blade cover, respectively. When in the roll paper cutting position, the blade protrudes from the blade cover, and when the blade support member and the cover support member are rotated beyond a certain level from the roll paper cutting position, the blade cover protrudes from the blade tip. By doing so, the cutting edge of the knife used to cut the roll paper can be prevented from being exposed to the outside under any circumstances, which has the excellent effect of allowing the operator to safely perform tasks such as replacing the roll paper. That's what you get.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of a roll paper cutting device according to the present invention, Fig. 2 is a cross-sectional view showing the state of the roll paper cutting device of this embodiment, and Fig. 3 is a roll paper exchange of this embodiment. FIG. 2... Recording paper, 2a... Roll, 3... Blade support arm, 4... Cover support arm, 5, 6...
Shaft, 7... spring, 8... cutter, 9... cutter cover.

Claims (1)

[Claims] 1. A knife cover, a knife cover support that holds this knife cover at its tip, a knife cover support shaft that rotatably supports this knife cover support, a knife, and a knife that holds this knife at its tip. a support and
The blade support shaft is rotatably supported by the blade support shaft and is located closer to the roll paper cutting section than the blade cover support shaft, and the difference in the level of contact between the blade support and the blade cover support is and restraining means for holding the two so that they do not separate from each other while allowing movement, and when the blade support and the blade cover support are in the roll paper cutting position, the blade edge of the blade protrudes from the blade cover. The roll paper cutting device is further characterized in that when the blade support and the blade cover are rotated beyond a certain width from the roll paper cutting position, the blade cover protrudes from the cutting edge of the blade.