JP2000052633A - Recording body roll and supporting structure thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a recording body roll from being misused by inserting and attaching holders corresponding to the recording body roll and, at the same time, the recording body roll is surely rotatingly supported. SOLUTION: A recording body roll 1 is formed by winding a recording body 3 around the outer periphery of a core tube 2 having locking projections 4 formed on its tubular inner peripheral surface. A recording body 3 having different kinds of the locking projections 4 takes a different form. The core tube 2, on the tubular inner peripheral surface of which the locking projections 4 and around the outer periphery of which the recording body 3 is wound so as to form the recording body roll 1, and holders 5, each of which has an insertingly attaching projected part 7 acting as an outer diameter having engaging recessed parts 9 fitting to the engaging projections 4 of the core tube 2 thereon and insertingly attachable to the core tube 2 and, at the same time, having a guide plate 6 abutting against the end edge of the recording body 3 are equipped. A recording body 3 having the different kind of the engagement between the engaging projections and the engaging recessed parts has a different form of engagement from that just mentioned above.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium roll obtained by winding a recording medium used in a recording apparatus around a core tube, and a structure for supporting the recording medium roll for mounting the recording medium on the recording apparatus. It is.

[0002]

2. Description of the Related Art In a recording apparatus such as a stencil printing apparatus, for example, a recording medium roll in which a stencil sheet for recording is formed into a roll as a recording medium is used. Conventionally, as shown in FIG. 4, a recording medium roll 101 of this type has a band-shaped recording medium 103 (for stencil printing) having substantially the same width as the core pipe 102, as shown in FIG. Base paper). Further, the recording medium roll 101 has holders 105 mounted on both ends thereof, and a recording device (not shown) via the holder 105.
Supported on the side.

A holder 105 has a disk-shaped guide plate 106 at both ends of the recording medium roll 101 and abutting against both edges in the width direction of the recording medium 103, and an inner diameter of the core tube 102 projecting from the center of the guide plate 106. And an insertion protruding portion 107 that can be fitted and inserted. The insertion protrusion 107 is provided on the guide plate 1.
06, a substantially cylindrical column having a diameter capable of being inserted into the core tube 102 of the recording medium roll 101, and a rib 108 protruding from the outer peripheral surface thereof. Thereby, the holder 1
In the recording medium 10, the insertion projection 107 is fitted and fixed to the inner peripheral surface of the core tube 102 and one surface of the guide plate 106
3 guides both side edges.

An opening 111 is formed in the other surface of the guide plate 106, and a support member 110 on the recording apparatus side is fitted into the opening 111. Support member 110
Each has a protrusion 114 inserted into the opening 111 of each holder 105 and a flange 115 contacting the other surface of the guide plate 106, and each support shaft 113 forming the same axis.
It is freely rotatable via. Also, the flange 115
Is provided with a non-slip member 120 having a large coefficient of friction which serves as a non-slip when it comes into contact with the guide plate 106.

The core tube 1 of the recording material roll 101
02, the opening 111 of the holder 105, and the support shaft 113 of the support member 110 have the same axial center, and the recording medium roll 101 is rotatable around the support shaft 113.

The recording medium roll 101 has a core tube 10 having a different inner diameter depending on the type of the recording medium 103 wound.
2 are prepared. On the other hand, also in the holder 105, the insertion protrusion 107 having an outer diameter corresponding to the inner diameter of each core tube 102 is provided.
It has. Therefore, the combination of the inner diameter of the core tube 102 and the outer diameter of the insertion projection 107 makes the recording medium 103
Are incompatible with each other so that they cannot be inserted into each other.

[0007]

However, in the above-described conventional configuration, in an incompatible form in which the inner diameter of the core tube 102 and the outer diameter of the insertion projection 107 are combined, there are many types of cores. The insertion protrusion 1 is larger than the inner diameter of the pipe 102.
In the case where the outer diameter of 07 is small, there is a problem that the holder 105 is inserted into the different kind of recording medium roll 101 and the different kind of recording medium roll 101 is used for the recording apparatus.

Further, since the support member 110 for supporting the recording material roll 101 does not have a configuration for solving the above problem,
Even if a different type of recording medium roll 101 is misused, it cannot be determined.

The holder 105 can be fitted and inserted into the core tube 102 of the recording medium roll 101 with a rib 108. However, if the rib 108 is worn out due to long-term use or the like, the holder 105 is attached to the recording apparatus. Recording medium roll 101
May run idle. The idling of the recording material roll 101 causes a problem such as wrinkling when the recording material 103 is conveyed.

When the recording medium 103 is a stencil sheet for stencil printing, if the inner diameter of the core tube 102 is 30 mm or less, the winding becomes strong. When the inner diameter of the core tube 102 is 50 mm or more, the diameter of the recording material roll 101 itself becomes large, which causes a problem in the accommodation space in the stencil printing apparatus. Therefore, the inner diameter of the core tube 102 that can be used is 30 to
If it is limited to 50 mm or less, there is a limit in the combination of the inner diameter and the outer diameter of the insertion projection 107.

Therefore, in order to solve the above-mentioned problems, the present invention can prevent the misuse of the recording body roll by inserting a holder corresponding to the recording body roll, and can reliably support the recording body roll in rotation. It is an object to provide a recording medium roll and a support structure for the recording medium roll.

[0012]

In order to achieve the above object, a recording medium roll according to the present invention is provided by winding a recording medium around an outer periphery of a core tube having a cylindrical inner peripheral surface having a locking projection formed thereon, and The locking projections are characterized in that they have different forms corresponding to different types of recording media.

In such a configuration, the difference in the type of the recording material wound around the core tube is recognized in the form of the locking projection on the inner peripheral surface of the core tube.

The recording roll supporting structure according to the present invention is characterized in that a core tube forming a recording roll by forming a locking projection on a cylindrical inner peripheral surface and winding the recording body around its outer periphery. Forming a locking concave portion to be fitted to the locking projection of the core tube, having an insertion projection having an outer diameter capable of being inserted into the core tube, and at an edge of a recording medium in the recording medium roll. A holder having a guide plate that can be brought into contact with the holder, wherein the engagement between the locking projection and the locking recess has a different engagement form corresponding to different types of recording materials. I have.

Further, the recording roll supporting structure according to the present invention comprises a core tube which forms a recording roll by forming a locking projection on a cylindrical inner peripheral surface and winding the recording body around the outer periphery thereof. An insertion recess formed with a locking recess fitted to the locking projection of the core tube so as to have an outer diameter capable of being inserted into the core tube, and having a projection formed on an inner peripheral surface thereof; A holder having a guide plate capable of abutting against an edge of a recording medium in the recording medium roll, and a concave portion that fits into a projection of the holder to form a cylindrical shape of the insertion projection. A support member that is fitted and rotatably supports the recording body roll via the holder, wherein the engagement between the locking projection and the locking recess and the engagement between the projection and the recess are provided. In this case, different engagement forms are provided for different types of recording media.

In such a configuration, the engagement mode between the engagement projection and the engagement recess and the engagement mode between the projection and the recess are set to different engagement modes corresponding to different types of recording materials. Misuse of the recording medium roll is prevented.

Further, the holder is inserted into the core tube of the recording material roll securely by the engagement between the locking projection and the locking recess. Also, the insertion of the support member into the holder,
Insertion is ensured by the engagement between the projection and the recess.

[0018]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a perspective view showing a recording body roll and a supporting structure of the recording body roll.

The recording medium roll 1 is made of a core tube 2 made of synthetic resin.
And a recording body 3 wound around the core tube 2.

The core tube 2 has a predetermined length (width) and is formed in a cylindrical shape. On the inner peripheral surface of the core tube 2, a plurality of (two in FIG. 1) projecting locking projections 4 continuous in the longitudinal direction of the core tube 2 are provided at an arbitrary angle θ from the center of the core tube 2. ing.

The recording medium 3 is used for various recording apparatuses. For example, when the recording apparatus is a stencil printing apparatus, a stencil sheet is used. This stencil sheet is
As a method of forming a perforated portion forming a printed image, there are a method using heat, a method using a solvent, and a method using mechanically. Furthermore, examples of the recording medium 3 used in other recording apparatuses include thermal paper and printing paper.

The recording material roll 1 configured as described above is
Both sides of the recording device (not shown) are rotatably supported via holders 5. The holders 5 are paired so as to be arranged on both sides of the recording medium roll 1.

Each holder 5 has a guide plate 6 formed in a substantially disk shape so that one surface thereof abuts on one end of the recording body 3 wound around the core tube 2.

On one surface of the guide plate 6, there is formed a cylindrical insertion projection 7 projecting concentrically with the guide plate 6 from the center thereof. The insertion projection 7 has a rib 8 projecting from the outer peripheral surface thereof for pressing the inner peripheral surface of the core tube 2. On the outer peripheral surface of the insertion projection 7 except for the ribs 8, a locking recess 9 which is detachably engaged with the locking projection 4 of the core tube 2 is provided.
A plurality (two places) are provided at the same angle as the angle θ formed by the locking projections 4.

In the holder 5 configured as described above, the insertion protrusions 7 are inserted from both sides of the core tube 2 of the recording material roll 1 so that the engagement protrusions 4 and the engagement recesses 9 engage with each other. At the same time, it is fitted and inserted into the inner diameter of the core tube 2 with the rib 8.
In addition, a taper 7 a is provided at the tip of the insertion projection 7 so as to facilitate insertion into the core tube 2.

Therefore, by the engagement between the locking projection 4 and the locking recess 9, the recording medium roll 1 and the holder 5 mesh with each other,
No idling occurs between them. Further, since the locking projections 4 formed on the core tube 2 of the recording medium roll 1 are continuously provided in the longitudinal direction of the core tube 2, the strength of the core tube 2 is improved.

Here, the angle θ of the locking projection 4 on the core tube 2 of the recording material roll 1 is set to be different depending on the type of the recording material 3. A holder 5 having a locking recess 9 arranged corresponding to the above is prepared. The difference in the type of the recording medium 3 is, for example, in the case where the recording medium 3 is a stencil sheet, in addition to the above, the difference in the resolution of the stencil printing machine (resolution of the thermal head) and the printing method ( Middle press type, external press type, etc.).

Thus, the holder 5 has the locking recesses 9 which can be engaged with the plurality of locking projections 4 having different angles θ depending on the type of the recording body 3, so that the type of the recording body 3 can be changed. It becomes a special thing according to. Therefore, even if there are recording media 3 of different types, as described above, the angle θ
If a recording medium roll 1 having a core tube 2 with a different (arrangement) is prepared and a dedicated holder 5 is prepared for this recording medium roll 1, the recording medium roll 1 (recording medium 3) will not be misused.

In the above-described embodiment, the angle θ between the two locking projections 4 protruding from the inner peripheral surface of the core tube 2 is changed according to the type of the recording body 3. 2, a dedicated holder 5 is prepared, but this is not a limitation. As a specific example, as shown in FIG. 2A, the width of the locking projection 4 protruding from the inner peripheral surface of the core tube 2 is changed in accordance with the type of the recording body 3, and A dedicated holder 5 may be prepared for the tube 2. In addition, as shown in FIG. 2B, the height of the projections of the locking projections 4 is changed, or the number of the locking projections 4 is changed as shown in FIG. A dedicated holder 5 may be prepared.

Incidentally, the recording material roll 1 into which the holder 5 is inserted as described above is rotatable via the holder 5 by the support member 10 arranged on the recording apparatus (not shown) as shown in FIG. Supported.

First, in the holder 5, the other surface of the guide plate 6 (the surface that is outside when inserted into the recording medium roll 1) penetrates the inside diameter of the cylindrical insertion projection 7. An opening 11 is formed. In addition, a plurality of protrusions 12 along the projecting direction of the insertion protrusion 7 are provided on the inner peripheral surface of the insertion protrusion 7 at an arbitrary angle θ ′ from the center of the insertion protrusion 7 (FIG. 3).
(In two places).

Next, the support members 10 are paired so as to face the openings 11 of the holders 5 inserted into the recording material roll 1. And it is rotatable via each support shaft 13 which forms the same shaft core. This support member 10 is
And a flange 15 which can be in contact with the other surface of the guide plate 6.

The protrusion 14 is formed in a cylindrical shape having an outer diameter to be inserted into the opening 11. The outer peripheral surface is provided with a plurality of (two) concave portions 16 which are detachably engaged with the protrusions 12 of the holder 5 at the same angle as the angle θ ′ formed by the protrusions 12.

The flange 15 is formed integrally with the projection 14 so as to come into contact with the other surface of the guide plate 6 when the projection 14 is inserted into the opening 11.

The support member 10 is elastically biased so that at least one of the support members 10 protrudes in the opposite direction via the support shaft 13, and the recording medium roll 1 is held between the flanges 15 via the holder 5. It is configured to be pinched.

The support member 10 is inserted into the opening 11 of the holder 5 by inserting the projection 14 into the projection 12.
The recess 16 is fitted and inserted into the inner diameter of the opening 11 so as to engage with each other. Thus, the recording medium roll 1 is rotatably supported by the recording apparatus. In addition, a taper 14 a is provided at the tip of the projection 14 so as to facilitate insertion into the opening 11.

At this time, the holder 5 and the support member 10 are engaged with each other by the engagement between the projection 12 and the recess 16, so that the recording medium roll 1 can be reliably rotated and supported.

Further, the angle θ ′ of the projection 12 in the holder 5 is set to be different depending on the type of the recording medium 3 forming the recording medium roll 1 as described above. The projection 12 has a concave portion 16 corresponding to the angle θ ′.

Thus, the support member 10 has the concave portion 16 which can be engaged with the plurality of protrusions 12 having different angles θ ′ for each type of the recording body 3, and thereby the recording body 3 (recording body 3). It is a dedicated one according to the type of roll 1). Accordingly, since the support member 10 is fitted to the recording medium rolls 1 of different types correspondingly, it is possible to prevent an erroneous use of the recording medium roll 1 that does not correspond to the recording apparatus.

The structure of the fitting between the holder 5 and the support member 10 is synergistic with the structure of the fitting of the core tube 2 of the recording body roll 1 and the holder 5, and misuse of different types of recording bodies 3 is performed. To prevent

In this embodiment, with respect to the holder 5, the projection 12 with which the recess 16 of the support member 10 is engaged is
It is formed as a relief of the thickness of the insertion projection 7 when forming the engagement recess 9 that engages with the engagement projection 4 of the core tube 2.
This facilitates the design of the combination of the core tube 2, the holder 5, and the support member 10 corresponding to each type of the recording body 3. In addition, the protrusion 12 does not necessarily need to be formed as a relief of the thickness of the insertion protrusion 7 when the engagement recess 9 is formed.

The structure for preventing the misuse of the different recording medium 3 between the holder 5 and the support member 10 is based on the fact that the angle θ 'between the two projections 12 is determined by the type of the recording medium 3 (recording medium roll 1). The concave portion 16 corresponding to the arrangement of the protruding portion 12 is provided on the support member 10, but this is not a limitation, and it is exemplified in FIGS. 2 (a) to 2 (c). As described above, the recesses 16 corresponding to the protrusions 12 may be provided on the support member 10 by changing the width, the protrusion height, and the number of the protrusions 12.

[0043]

As described above, the recording material roll according to the present invention has the form of the locking projection on the inner peripheral surface of the core tube.
By recognizing the difference in the type of recording medium wound around the core tube, it is possible to prevent misuse of an incorrect recording medium.

Further, the strength of the core tube can be improved by the locking projections formed on the inner peripheral surface of the core tube.

In the support structure for a recording body roll according to the present invention, the core body of the recording body roll is provided with a holder having a locking concave portion capable of engaging with a locking projection on an inner peripheral surface of the core tube.
The engagement between the locking projections and the locking recesses is set to different engagement forms corresponding to different types of recording media, so that the recording material roll and the holder supporting the recording media are engaged with each other to wind the core tube. By recognizing the difference in the type of recording medium mounted, it is possible to prevent misuse of the wrong recording medium.

Further, in addition to the form of engagement between the locking projection and the locking recess, a projection is formed on the inner peripheral surface of the insertion projection of the holder, and a recess is formed to fit into the projection of the holder. A support member rotatably supporting the recording body roll, and the engagement between the projections and the recesses is made different engagement forms corresponding to different types of recording bodies, whereby the recording medium roll is inserted into the recording body roll. With the engagement between the holder and the support member, it is possible to recognize the difference in the type of the recording material wound around the core tube, and to prevent misuse of the wrong recording material.

Further, the insertion of the holder into the core tube of the recording material roll is inserted by the engagement between the locking projection and the locking recess, and the insertion of the support member into the holder is performed by the engagement between the projection and the recess. The recording medium roll can be reliably rotated and supported by being inserted by joining.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a recording body roll and a support structure of the recording body roll.

FIGS. 2A, 2B and 2C are perspective views showing another embodiment of the recording medium roll.

FIG. 3 is a perspective view showing a support structure of the recording body roll.

FIG. 4 is a perspective view showing a conventional recording medium roll and its support structure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Recording body roll, 2 ... Core tube, 3 ... Recording body, 4 ... Locking projection, 5 ... Holder, 6 ... Guide plate, 7 ... Insertion protrusion, 9 ... Locking recess, 10 ... Supporting part, 12 ... projecting part, 16 ... concave part.

Claims (3)

[Claims] 1. A recording medium is wound around an outer periphery of a core tube having a cylindrical inner peripheral surface on which a locking projection is formed, and the locking projection differs according to different types of recording bodies. A recording material roll characterized by being in a form. 2. A locking projection is formed on a cylindrical inner peripheral surface,
A core tube forming a recording body roll by winding a recording body around the outer periphery thereof, and a locking concave portion that fits into a locking projection of the core tube to form an outer diameter that can be inserted into the core tube. With a landing part,
A holder having a guide plate capable of abutting against an edge of the recording medium in the recording medium roll, wherein the engagement between the locking projection and the locking recess differs according to different types of recording medium. A support structure for a recording material roll, which is in an engagement form. 3. A core tube forming a locking roll on a cylindrical inner peripheral surface, on which a recording medium is wound around the outer periphery thereof to form a recording body roll, and fitted to the locking projection of the core tube. A cylindrical recess having an outer diameter capable of being inserted into the core tube, and having an insertion projection having a projection formed on an inner peripheral surface thereof. A holder having a guide plate capable of abutting against an edge of the body, and a recess formed to fit into a projection of the holder to be inserted into a cylindrical shape of the insertion projection and the holder via the holder. And a support member rotatably supporting the recording material roll, wherein the engagement between the locking projection and the locking recess and the engagement between the projection and the recess correspond to different types of recording media. And a recording medium roll supporting structure having different engagement forms.