JPH101262A - Core structure of roll paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a core structure of roll paper easy in mounting the roll paper and adjusting its direction. SOLUTION: Section bodies 13, 13 into which a winding core are sectioned are coupled together at their opposite sectioned wall surface parts 14, 14 by a hinge 15, and sandwiching wall surface parts 14a which normally press against each other to sandwich the roll paper 5 and opposite wall surface parts 14b, 14b that are normally open and opposed to each other and that approach each other when the sandwiching wall surface parts 14a, 14a open are formed in the sectioned wall surface parts 14, 14, and a coil spring 17 which imparts an elastic force in the direction in which it separates the two section bodies 13, 13 from each other is interposed between the opposite wall surface parts 14b, 14b of the section bodies 13, 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll paper core structure of a guide display device for developing and displaying roll paper or the like depicting information such as guidance and advertisement.

[0002]

2. Description of the Related Art Conventionally, in a facility or the like having a large number of rooms, such as a hotel, as a guide display device for displaying the contents of an event and the name of the organizer, for example, JP-A-5-46130, JP-A-4-107759, JP-A-4-15683 is disclosed.

[0003] In these guide display devices, a roll paper is mounted on an unwinding roll and wrapped around a take-up roll, and characters are printed by a word processor, a printer, or the like while the roll paper is being sent from the unwinding roll to the take-up roll. Are shown.

In these guide display devices, the winding core of the take-up roll is a cylindrical tubular body. In order to wind up the roll paper on the take-up roll, first, the leading end of the roll paper must be cylindrical. The method of sticking and fixing to the core of the body with an adhesive tape is usually performed.

[0005]

However, with such a method of stopping the roll paper, if the longitudinal direction of the roll paper is not perpendicular to the axial direction of the winding core of the take-up roll, there is a slight possibility. The take-up roll is shifted toward one side at a time, and eventually the roll paper may be torn or the take-up roll may not be able to rotate.

[0006] In order to avoid such a situation, when the end of the roll paper is attached to the cylindrical core, the core and the roll paper must be accurately oriented at right angles. There is a problem that it is difficult to determine the direction of the roll paper and fix the roll paper to the cylindrical winding core.

The present invention has been made in view of such a problem. When the roll paper is wound around a winding core, the direction of the roll paper can be easily adjusted together with the installation, and unnecessary roll paper such as tape is required. An object of the present invention is to provide a core structure.

[0008]

In order to solve the above problems, the roll paper core structure according to the first aspect of the present invention is a roll paper core structure in which a thin strip of paper or film is wound around a cylindrical body. In the core structure, the cross section of the cylindrical body is divided into two parts in the axial direction, and the opposing divided wall surfaces of the two divided bodies are connected by a hinge having a rotation axis extending in the axial direction. Normally, each of the divided wall portions is pressed against each other and sandwiches the band-shaped material, and the other is normally opened and opposed to each other when the sandwiched wall portions are opened. An opposing wall surface portion that is in an approaching state is formed, and an elastic material that imparts elasticity is interposed between the opposing wall surface portions of the two divided bodies in a direction away from each other.

According to the roll paper core structure of the present invention, when the peripheral surface of the two divided bodies on the side of the opposing wall is pressed, the pair of nipping wall portions is opened. The end of the strip is sandwiched between them. At this time, if the starting end of the strip is bent at a right angle to the side edge and the bent ridge line is aligned with the edge of the sandwiching wall, the longitudinal direction of the strip can be easily oriented at a right angle to the core. The direction can be easily adjusted by attaching and detaching the starting end. Even if the paper rolls in the middle of the winding process, open the sandwiched wall slightly and move the protruding side edge of the rolled paper to the back to eliminate the roll paper. it can.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a roll paper core structure according to a preferred embodiment of the present invention will be described with reference to the drawings.

FIG. 2 shows a guide display for mounting a roll paper winding core according to an embodiment of the present invention. Information display 1
In the housing 2, an unwinding roll 3 and a take-up roll 4 are disposed vertically, and both ends of the unwinding roll 3 and the take-up roll 4 are rotatably held by bearings (not shown). Housing 2 is caster wheel 2
It can be freely moved by a. The roll paper 5 pulled out from the unwind roll 3 extends toward the take-up roll 4 and is guided by the pinch rollers 6, 6, the platen roller 7, and the guide roller 8 in the middle of the process. A print head 9 of the printer is provided near the platen roller 7. The roll paper 5 uses, for example, copy paper, and the head 9 uses, for example, an inkjet head. The head 9 is an output unit such as a word processor (not shown), and prints desired characters on the roll paper 5 by inputting characters by the word processor.
When characters are printed, the roll paper 5 is fed by a predetermined pitch from the unwind roll 3 to the take-up roll 4 by the pinch rollers 6 and 6, and the head 9 moves in the axial direction of the platen roller 7 and , Characters, symbols, and figures are drawn. The roll paper 5 on which characters and the like are drawn is sent to a predetermined position of the window 10 of the housing 2 and stopped. The character drawing portion stopped at the position of the window 10 of the housing 2 can be viewed from the window 10 under the light of the fluorescent lamp 11.

FIG. 1 shows a side view of the winding core of the winding roll 4. The winding core 12 has a substantially cylindrical shape, and the cross section of the cylindrical shape is divided into two in the axial direction of the winding core 12. These two divided bodies 13
Have fan-shaped cross sections facing each other, and shaft portions 13ar, 13al for holding are formed at the left and right ends of the divided body 13.

The divided body 13 and the opposing divided wall portions 14 of the shaft portions 13ar, 13al are connected to each other by a hinge 15. The hinge 15 is a hinge type, and the winding core 12
A hinge pin 15a as a rotating shaft extending in the axial direction is provided, and the hinged plate is screwed to each of the two divided wall portions 14.

As shown in FIG. 3, each of the divided wall portions 14 normally has a sandwiching wall portion 14a which presses against each other and sandwiches an end portion of the roll paper 5 which is a belt-shaped material. And opposing wall portions 14b that face each other in an open state and approach each other when the sandwiching wall portions 14a are opened.

As shown in FIG. 4, a spring arrangement hole 16 is formed in the opposing wall portions 14b, 14b.
A coil spring 17 as an elastic material is provided between the spring arrangement holes 16 and 16 as an elastic material for imparting elasticity in a direction of separating the opposed wall portions 14b and 14b of the two divided bodies from each other. The elastic material is not limited to the coil spring 17 of this type, but may be a helical spring. In the case of a spiral spring, the arrangement holes 16, 16 are formed to be thin to match the thickness of the spiral spring.

A cylindrical ring 18 as shown in FIG. 3 is fixed to the shaft 13a. The screw 18a can be screwed to the cylindrical peripheral surface of the cylindrical ring 18. Shaft 1
Since the members 3a are also opened and closed, the screw 18a may be screwed to the shaft portion 13a. Further, the cylindrical ring 18 is moved from the shaft 13a.
The shaft 18 is formed in a cylindrical shape so that it does not come off easily.
The shaft 18 may be protruded from one of the upper and lower portions of the divided bodies 13. On the peripheral surface of the cylindrical ring 18, four grooves 19 for fitting the hubs 20a and 20b shown in FIG. 6 are formed.

The hubs 20a and 20b are detachably fixed to the left and right of the winding core 12, and the hub 20a is provided with a gear 21. A cylindrical portion 21a for inserting and fitting the right shaft portion 13a of the winding core 12 is provided on the hub 20a, and a projection 21b for fitting into the groove 19 of the shaft portion 13a is provided on the inner side of the cylindrical portion 21a. I have. A flange portion 22 protrudes from an end of the cylindrical portion 21a, and a shaft portion 23 held by a bearing protrudes from the flange portion 22. A gear 21 for driving the take-up roll 4 is fixed to the shaft portion 23. Shaft portion 23 of hub 20b without gear 21
Is formed with a locking portion 24 for preventing falling off. The gear 21 is driven by a drive gear (not shown),
2 winds up the roll paper 5.

When the starting end of the roll paper 5 is fixed to the take-up roll 12, first, the back cover 2b of the housing 2 is opened, and the roll paper 5 is unwound from the unwind roll 3 by the pinch rollers 6,
6, through the platen roller 7 and the guide roller 8,
It is led to the take-up roll 4. The starting end of the roll paper 5 is bent at right angles to the left and right side edges. Next, as shown in FIG.
The sandwiching wall portions 14a, 1 of the divided bodies 13, 13 of the winding core 12
4a, the folded ridge of the roll paper 5 is positioned at the separation boundary between the sandwiching wall portions 14a, 14a, and the sandwiching wall portions 14a, 14a are closed. As a result, the roll paper 5
Is rolled up without offset. Even if the bending direction of the starting end of the roll paper 5 is not perpendicular to the left and right side edges of the roll paper 5 and a deviation occurs, the take-up roll 12 is removed and the hub 20a is removed. It is possible to adjust by loosening the starting end of the roll paper 5 by once opening the sandwiching wall portions 13, 13 of the divided bodies 13, 13. When replacing the roll paper 5 from the unwind roll 3 and the take-up roll 4, the divided bodies 13, 13 of the winding core 12 of the unwind roll 3 and the take-up roll 4 are loosened, and only the roll paper 5 is replaced. It is also possible.

The sandwiching wall portions 14a, 14 of the divided body 13
The fixing of the roll paper 5 may be ensured by sticking or embedding a thin rubber sheet or the like on a. Further, one or both of the divided bodies 13 are provided on the opposed wall portions 14b, 14b with a circular rib for winding the roll paper 5 into a cylindrical shape.
And the circular ribs may be interdigitated with each other so that the circular ribs can slide into and out of the other divided body 13. By doing so, the opposing wall portions 14b, 14
b, when the roll paper 5 is wound around the roll paper 5
Even if the winding cross-section becomes chordal, the circular cross-section of the peripheral surface of the winding core 12 can be maintained, and discontinuous changes in the feed speed of the roll paper 5 can be prevented.

[0020]

According to the roll paper core structure of the first aspect of the present invention, when the peripheral surface on the side of the opposing wall of the two divided bodies is pressed, a pair of clamping wall surfaces is opened. The end of the strip is sandwiched between the wall portions. At this time, if the starting end of the strip is bent at a right angle to the side edge and the bent ridge line is aligned with the edge of the sandwiching wall, the longitudinal direction of the strip can be easily oriented at a right angle to the core. The direction can be easily adjusted by attaching and detaching the starting end. Even if the paper rolls in the middle of the winding process, open the sandwiched wall slightly and move the protruding side edge of the rolled paper to the back to eliminate the roll paper. it can.

Therefore, according to the roll paper core structure of the first aspect of the present invention, when the roll paper is wound around the core, no tape or the like is required, and the mounting of the roll paper and the core and the direction adjustment are easy. .

[Brief description of the drawings]

FIG. 1 is a front view of a roll paper winding core according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a schematic configuration of a guidance display device using the winding core of FIG. 1;

FIG. 3 is a side view of a normal state in which a sandwiching wall portion of the winding core of FIG. 1 is closed.

4 is a cross-sectional view taken along the line IV-IV of FIG. 1 and is a cross-sectional view of a coil spring arrangement portion of the winding core.

FIG. 5 is a side view showing a state in which a sandwiching wall portion of the winding core of FIG. 1 is opened.

FIG. 6 is a side view of a hub attached to the end of the winding core of FIG. 1;

FIG. 7 is a front view of the winding roll of FIG. 2;

[Description of Signs] 1 Guide display device 2 Housing 3 Unwinding roll 4 Take-up roll 5 Roll paper 12 Take-up core 13 Split body 14 Dividing wall portion 14a Nipping wall portion 14b Opposing wall portion 15 Hinge 16 Arrangement of coil spring Hole 17 Coil spring 20a, 20b Hub 21 Gear

Claims (1)

[Claims] In a roll paper core structure for winding a thin band such as paper or film around a cylindrical body, a cross section of the cylindrical body is divided into two in an axial direction, and the two divided bodies are divided into two sections. Opposite divided wall portions are connected by a hinge having a rotation axis extending in the axial direction, and each of the divided wall portions usually has a sandwiching wall portion that presses against each other and sandwiches the strip. And an opposing wall portion which normally faces each other in an open state and which comes close to each other when the sandwiching wall portions are opened, and has elasticity in a direction away from each other between the opposing wall portions of the two divided bodies. A core structure of roll paper, characterized by interposing an elastic material for imparting a thickness.