JP2003267594A - Roll paper clamper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce loosening of roll paper in storage. <P>SOLUTION: This roll paper clamper 2 comprises a roll paper holding part 3, a cut part 4 and an opening knob 5. A roller 10 is mounted on the cut part 4. Two opening knobs 5 are respectively pressed inside to laterally expand the cut part 4. The roll paper clamper 2 is pressed to the roller paper 21 in a state of pressing the cut part 4 to an outer periphery of the roller paper 21. When the opening knobs 2 are released, the roll paper holding part 3 recovers its original shape, and clamps the roll paper 21 to prevent the loosening. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll paper clamper for preventing the roll paper from loosening during storage.

[0002]

2. Description of the Related Art Roll paper used for printing includes roll paper for sticker printing and normal roll paper, and there are also roll papers having different width sizes. When printing with a printer, it is necessary to select and replace a desired roll paper from roll papers of different types and widths according to the printing purpose.

[0003]

If the roll paper after replacement is stored as it is, loosening of the roll will occur. When the roll paper in which the winding is loosened is set in the printer again, the paper cannot be fed, and jamming may occur in the paper feed magazine.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a roll paper clamper which prevents the roll paper from being loosened during storage.

[0005]

In order to achieve the above object, a roll paper clamper of the present invention is formed in a cylindrical roll paper holding portion and a part of the roll paper holding portion. It comprises a cutout portion for fitting the roll paper holding portion on the outer circumference of the roll paper, and a roll paper slip prevention portion provided on the inner surface of the roll paper holding portion.

Further, a roller attached to the front end of the roll paper holding portion formed by the cutout portion and a roll paper holding portion formed on the opposite side of the cutout portion, and cut when the roll paper is mounted. It is provided with a knob for expanding the notch.

Further, the wire is rolled into a circular shape, both ends of the wire are bent in the axial direction of the roll paper while maintaining a gap that can be inserted into the roll paper, and rollers are attached to this bent portion.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, a roll paper clamper 2 of the present invention includes a roll paper holding portion 3, a cutout portion 4,
It is composed of an open knob 5. The roll paper holder 3 is formed in a cylindrical shape from a thin plate of elastically deformable plastic or metal. By providing the cutout portion 4 below the roll paper holding portion 3, the roll paper holding portion 3 has a substantially C-shape.
The slip prevention rib 11 is provided on the inner surface 3a of the roll paper holder 3.
However, a plurality of them are provided at regular intervals.

As shown in FIG. 2, the cutout portion 4 is for fitting the roll paper holding portion 3 into the roll paper 21.
A pair of bearings 6 and 7 and a notch 9 formed between them are provided at both ends of the roll paper holder 3 divided by the notch 4. These bearings 6,
A shaft 8 is supported by 7, and a resin roller 10 is attached to the shaft 8. The roller 10 is rotatable in the cutout 9.

The opening knobs 5 are for laterally expanding the notches 4, and two opening knobs 5 are provided on the outer surface 3b of the roll paper holder 3 at positions opposite to the notches 4. There is. The roll paper holder 3 is made of resin and has a property of elastically deforming. When these two release knobs 5 are pushed inward, respectively, the roll paper clamper 2 spreads out in the lateral direction as a whole. Return to shape.

As shown in FIG. 3, when the roll paper 21 taken out from the thermal printer (not shown) is held by the roll paper clamper 2, the open ribs 5 are pushed inward to expand the roll paper clamper 2 in the lateral direction. In this state, the notch 4 is pushed in while being in contact with the outer circumference of the roll paper 21. When the open knob 5 is returned to its original position, the roll paper holder 3 returns to its original shape and holds the roll paper 21 firmly. Therefore, the roll paper 21 can be stored without being loosened.

When mounted on the roll paper 21, the roller 10
Comes into contact with the roll paper 21 and is inserted while rotating.
Therefore, the roll paper clamper 2 is
Can be installed smoothly and without damage. Also,
Anti-slip ribs 11 are provided on the inner surface 3a of the roll paper holder 3 at regular intervals, and after being mounted on the roll paper 21, the roll paper clamper 2 is provided around the roll paper 21.
Does not slip. Incidentally, in order to prevent the roll paper clamper 2 from slipping off in the axial direction of the roll paper 21, it is preferable to provide a slip prevention rib in the circumferential direction.

As shown in FIG. 5, the roll paper 21 that has been subjected to the printing process by the thermal printer is cut into a predetermined size and printed out as cut paper 22. The cut sheet 22 is curled with the printing surface 22a inside due to curl and heat during printing. This state is
The printed surface 22a is difficult to see, which is not preferable for the user. Therefore, it is necessary to perform decal processing. As shown in FIG. 6, the cut paper 22 is inserted into the roll paper clamper 2 with the printing surface 22a facing outward. When the cut paper 22 is taken out from the roll paper clamper 2 after being left for a predetermined period of time, the curl is corrected and becomes flat or incurled.

As a slip stopper for the roll paper 21,
Although the slip prevention ribs 11 are provided on the inner surface 3a of the roll paper holder 3, rubber or the like may be attached to prevent the roll paper 21 from slipping. Further, the roller 10 is not limited to the one made of resin,
You may use sponge or rubber.

FIG. 7 shows another embodiment. In this embodiment, the roll paper clamper 32 has a roll paper holding portion 33 formed by bending a metal rod material such as wire into a substantially C shape.
And a loop 34 that improves the elasticity by rotating the wire once,
The roll paper insertion portion 35 is provided, and the roll paper insertion portion 35 is provided at each end of the substantially C-shaped roll paper holding portion 33.

As shown in FIG. 8, the roll paper insertion portion 35
Is a stopper portion 36 in which the wire is linear in the Y direction.
And a support shaft 37 formed by bending both ends of the wire into a substantially U-shape
And a roller 38. Roller hole 40 of roller 40
By inserting a into the support shaft 37, the roller 40 becomes rotatable.
The roller 40 does not fall off the support shaft 37 by the stopper portion 36.

The roll paper holder 33, which is made of wire, is elastically deformed when a predetermined force is applied. Therefore, when the roll paper holder 33 is mounted on the roll paper 21, the roll paper holder 33 is spread laterally. After holding the roll paper 21, the roll paper holding unit 33 returns to its original position and can hold it firmly.

[0018]

As described above, according to the roll paper clamper of the present invention, the roll paper can be stored only by mounting it on the roll paper without loosing the roll paper. Further, since the roll paper clamper is fitted into the roll paper while the roller rotates, the mounting is smooth and the roll paper is not damaged. Further, by providing the opening knob, the roll paper holder can be easily opened. Further, since the ribs for preventing slippage are provided on the inner surface of the roll paper holder, the rib does not come off from the roll paper. Furthermore, the present invention can also be used for decurling a cut sheet that has been printed.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a roll paper clamper of the present invention.

FIG. 2 is a perspective view of a cutout portion of the roll paper clamper of the present invention.

FIG. 3 is an explanatory diagram showing the roll paper clamper of the present invention being mounted on the roll paper.

FIG. 4 is an explanatory view showing a state in which the roll paper clamper of the present invention is mounted on roll paper.

FIG. 5 is a perspective view of a cut sheet printed out from a thermal printer.

FIG. 6 is a perspective view showing a state in which derolling is performed using the roll paper clamper of the present invention.

FIG. 7 is a perspective view showing another embodiment of the roll paper clamper of the present invention.

FIG. 8 is a cross-sectional view of a roll paper insertion portion.

[Explanation of symbols]

2,32 roll paper clamper 3, 33 Roll paper holder 4 notches 5 release knob 10, 40 rollers 11 Anti-slip ribs 21 roll paper 22 cut paper 22a printing surface

Claims (3)

[Claims] 1. A cylindrically-shaped elastically deformable roll paper holding part, and a cutout part formed in a part of the roll paper holding part for fitting the roll paper holding part on the outer periphery of the roll paper. A roll paper clamper comprising a roll paper slip prevention portion provided on the inner surface of a roll paper holding portion. 2. A roller attached to the tip of a roll paper holding portion formed by the cutout portion, and a roll paper holding portion formed on the opposite side of the cutout portion to cut the roll paper when mounted on the roll paper. The roll paper clamper according to claim 1, further comprising a knob for expanding the notch. 3. A roll paper clamper characterized by rolling a wire into a circle, bending both ends of the wire in the axial direction of the roll paper while keeping a gap that can be inserted into the roll paper, and attaching a roller to the bent portion. .