JP2001318451A - Shading photosensitive material roll with adapter and adapter for driving and supporting roll for photosensitive material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shading photosensitive material roll which is loadable to both of a plate making machine of a winding core supporting system and a plate making machine of a rigid side surface member supporting system. SOLUTION: The shading photosensitive material roll with an adapter is constituted by repetitively attachably and detachably fitting the adapter for driving and supporting the roll for the photosensitive material consisting of an annular substrate which is formed from a rigid resin material and has a circular hole in its central part and cylindrical projections which rise from the edges of this circular hole and are formed with circular holes consisting of a diameter smaller than the diameter of the circular hole of the substrate on the central part of the front end face to a winding core of the shading photosensitive material roll.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-shielding photosensitive material roll to be loaded in a plate making machine or the like in a light room, and a photosensitive material that can be advantageously used when the light-shielding photosensitive material roll is loaded in a plate making machine or the like. Roll driving support adapter.

[0002]

2. Description of the Related Art In a plate making machine using a photosensitive material, a long photosensitive material sheet is supported and loaded therein in the form of a photosensitive material roll wound around a hollow core. Conventionally,
As a method of supporting a photosensitive material roll in a typical plate making machine, there are a core supporting method of supporting a photosensitive material roll by inserting a photosensitive material roll driving support shaft directly into a core of the photosensitive material roll, and a photosensitive material roll. The photosensitive material roll drive support shaft is inserted into the hollow portion of the hard side member attached to the core of the roll, or the flange portion of the hard side member is installed on the photosensitive material roll drive support shaft to support. It is roughly divided into a hard side member support system.

On the other hand, the periphery of the photosensitive material roll is covered with a light shielding member so that the photosensitive material roll can be loaded into a plate making machine or the like in a bright room. As a photosensitive material roll covered with a light shielding member (hereinafter referred to as a light shielding photosensitive material roll), a structure having the following structure is known.

Japanese Patent Application Laid-Open Nos. 8-208125 and 8-2
Nos. 40887, 8-314074 and 9-25
Nos. 8391 and 10-97030 disclose a photosensitive material roll, a side light shielding member (end disk) having a diameter larger than the outer diameter of the photosensitive material roll attached to both ends of the core of the photosensitive material roll, and a photosensitive material. There has been proposed a light-shielding photosensitive material roll having a structure in which a light-shielding leader attached to the tip of a material roll and a side light-shielding member is folded over the surface of the light-shielding leader wound around the photosensitive material roll. In the light-shielding photosensitive material rolls described in these publications, a side surface light-shielding member is made of a flexible tearable material, and can be loaded into a core-support type plate making machine.

Japanese Patent Application Laid-Open No. 8-62783 discloses a photosensitive material roll, a side light shielding member having a diameter larger than an outer diameter of a photosensitive material roll attached to both ends of a core of the photosensitive material roll, and a photosensitive material roll. The light-shielding leader is attached to the tip of the light-sensitive material sheet.The light-shielding leader is wound around the photosensitive material roll while applying tension, and the light-shielding leader covers the outer surface of the side light-shielding member. Light-shielding photosensitive material rolls have been proposed. In the light-shielding photosensitive material roll described in this publication, a hard material can be used for the side light-shielding member, and can be loaded in a plate making machine of a hard side member support type.

[0006]

The light-shielding photosensitive material roll which can be loaded on a core-supporting type plate making machine and the light-shielding photosensitive material roll which can be loaded on a hard side member supporting type plate making machine have the same apparatus and members. Management of parts that can be manufactured with
It is preferable from an industrial viewpoint such as securing a storage place. However, a light-shielding photosensitive material roll that can be loaded into a core-support type plate making machine having a conventionally known structure and a light-shielding photosensitive material roll that can be loaded into a hard side member supporting type plate making machine have side light shielding members and light shielding. There is a problem that the materials and shapes of the readers are different, and it is difficult to manufacture them with the same device and member.

On the other hand, with respect to a light-shielding photosensitive material roll which can be loaded into a plate making machine of a hard side member supporting type, the hard side light-shielding member of different materials and the core of the photosensitive material roll can be easily removed after use by a user. Is preferred for separation and disposal. However, in a normal light-shielding photosensitive material roll that can be loaded into a plate making machine of a hard side member supporting type, the hard side light-shielding member and the photosensitive material roll are prevented from rotating idly in the core of the photosensitive material roll. The core is firmly fixed, and there is a problem that it is difficult to remove the hard side surface light-shielding member from the core of the photosensitive material roll.

Accordingly, an object of the present invention is to provide a light-shielding device which can be loaded into both a core making machine of a core supporting type and a plate making machine of a hard side member supporting type, and which can easily separate and discard members made of different materials. An object of the present invention is to provide a photosensitive photosensitive material roll and an adapter which can be advantageously used when loading the photosensitive material roll into a plate making machine.

[0009]

According to the present invention, there is provided a photosensitive material roll formed by winding a long photosensitive material sheet around a hollow core, and attached to each end of the core of the photosensitive material roll. A side light-shielding member having a radius substantially equal to the radius of the photosensitive material roll, the length of which is joined to the leading end of a long photosensitive material sheet having a length greater than the circumference of the side light-shielding member. And a light-shielding reader having a width greater than the width of the long photosensitive material sheet. Both end portions of the light-shielding reader are in contact with the outer surface of the side surface light-shielding member, and the light-shielding photosensitive material roll is wound. On the inside of the core, a ring-shaped substrate formed of a hard resin material and having a circular hole in the center,
And rising from the edge of the circular hole, in the center of the tip surface,
An adapter in which a roll driving support adapter for a photosensitive material comprising a cylindrical projection having a circular hole having a diameter smaller than the diameter of the substrate circular hole is detachably fitted through the cylindrical projection. With a light-shielding photosensitive material roll.

The side light-shielding member has a centrally located circular hole having a diameter substantially equal to the inner diameter of the core of the roll of photosensitive material, a flange having a radius substantially equal to the radius of the roll of photosensitive material, and an edge of the circular hole. A hollow cylindrical portion rising from the portion, the outer surface of the hollow cylindrical portion is fixed in contact with the inner wall of the core, or the side light shielding member has a radius substantially equal to the radius of the photosensitive material roll. A ring-shaped light-shielding sheet having at the center a circular hole having a diameter larger than the inner diameter of the core and smaller than the outer diameter of the core, and one end having an outer diameter substantially equal to the inner diameter of the core. A hollow cylindrical member having a flange portion at a portion thereof, the hollow cylindrical member penetrating through the circular hole of the ring-shaped light-shielding sheet, and the outer surface thereof is in contact with the inner wall of the core of the photosensitive material roll. It is preferable to fix with.

The roll drive support adapter for photosensitive material is
On the outer peripheral surface of the cylindrical projection, two or more convex portions extending along the length direction are formed, and a portion in contact with the inner wall of the core of the side surface light shielding member corresponds to the convex portion. A groove is formed along the width direction of the photosensitive material roll, and the adapter is fitted inside the core of the light-shielding photosensitive material roll by engaging the convex portion with the groove. preferable.

The roll driving support adapter for a photosensitive material is provided with two or more cuts in the cylindrical projection along the length direction, and each of the regions separated by each cut has a convex. Preferably, a part is provided. In the photosensitive material roll drive support adapter, the circular hole at the distal end surface of the cylindrical projection is extended toward the ring-shaped substrate side, and each of the regions separated by the cuts and the inside of the cylindrical projection are formed. Preferably, one or more reinforcing ribs interposed between the side surfaces are formed.

In the light-shielding light-sensitive material roll with an adapter according to the present invention, the light-shielding light-sensitive material roll is such that both end portions of the light-shielding reader are in contact with the outer surface of the side light-shielding member due to the heat shrinkage of the light-shielding reader. It is preferable to fuse in the state of.

Further, the present invention provides a ring-shaped substrate formed of a hard resin material and having a circular hole in the center, and a ring-shaped substrate rising from the edge of the circular hole and having a diameter of the substrate circular hole in the center of the tip end surface. There is also a roll drive support adapter for a photosensitive material, comprising a cylindrical projection formed with a circular hole having a smaller diameter.

Here, in the light-shielding photosensitive material roll with an adapter according to the present invention, the hard resin material forming the photosensitive material roll drive support adapter means that the photosensitive material roll is formed into a circular hole at the tip end surface of the cylindrical projection of the adapter. Even if the drive shaft is inserted and supported on the drive shaft, or the photosensitive material roll is supported by placing the ring-shaped substrate on the drive shaft, the material has such a hardness that the adapter is not deformed or damaged.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A light-shielding photosensitive material roll with an adapter according to the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view of an example of a light-shielding photosensitive material roll with an adapter according to the present invention. FIG. 2 is a perspective view showing an example of the light-shielding photosensitive material roll with an adapter according to the present invention in a state where the adapter is removed from the light-shielding photosensitive material roll. FIG. 3 is an exploded perspective view of an example of a light-shielding photosensitive material roll with an adapter according to the present invention.

The light-shielding light-sensitive material roll with an adapter according to the present invention is characterized in that the roll driving support adapter 9 for the light-sensitive material is detachably fitted to the core of the light-shielding light-sensitive material roll 11. That is, the light-shielding photosensitive material roll with an adapter according to the present invention is provided with a hard side member for a hard side member supporting type plate making machine on a core of the light shielding photosensitive material roll which can be loaded in a bright room into a core supporting type plate making machine. (adapter)
Are detachably fitted. The light-shielding photosensitive material roll with an adapter of the present invention can be loaded in a plate making machine of a hard side member supporting type. Then, the light-shielding photosensitive material roll from which the adapter shown in FIG. 2 has been removed can be loaded into a core supporting type plate making machine.

As shown in FIG. 3, the light-shielding light-sensitive material roll with an adapter according to the present invention comprises a light-sensitive material roll 1, a ring-shaped light-shielding sheet 6 attached to both ends of a core 2 of the light-sensitive material roll, and a hollow cylindrical member. 7, a light-shielding reader 4 joined to the end of the long photosensitive material sheet 3 of the photosensitive material roll, and an adhesive tape 5 attached to the end of the light-shielding reader. Roll drive support adapter 9.

The photosensitive material roll 1 is formed by winding a long photosensitive material sheet 3 around a hollow core 2.
The material of the winding core 2 is not particularly limited as long as it does not easily deform even when the photosensitive material roll driving shaft is inserted into the hollow portion, and examples thereof include a paper tube.

The ring-shaped light-shielding sheet 6 has, at the center thereof, a circular hole having a diameter larger than the inner diameter of the core of the photosensitive material roll and smaller than the outer diameter of the core. It is a flexible light shielding sheet. The thickness of the ring-shaped light shielding sheet is preferably in the range of 0.1 to 0.5 mm. Examples of the material of the ring-shaped light-shielding sheet include polycarbonate, polystyrene (particularly, impact-resistant polystyrene), polyester, and polypropylene in which carbon black is dispersed in a range of 1 to 10% by weight.

The hollow cylindrical member 7 has a cylindrical portion 12 having an outer diameter substantially equal to the inner diameter of the core (preferably larger than 0.2 to 1.0% of the inner diameter of the core) and a flange portion. 13 The thickness of the hollow cylindrical member 7 is preferably in the range of 0.2 to 1 mm. The hollow cylindrical member has a light shielding property.
As an example of the material of the hollow cylindrical member, carbon black is 1
Examples thereof include polycarbonate, polystyrene (particularly, high-impact polystyrene), polyester, and polypropylene dispersed in the range of 10 to 10% by weight.

The light-shielding reader 4 has a length longer than the outer periphery of the ring-shaped light-shielding sheet 6, preferably shorter than twice the outer periphery of the ring-shaped light-shielding sheet 6, and the width of the long photosensitive material sheet 3.
And a heat-shrinkable light-shielding film 4b whose length is longer than the outer circumference of the ring-shaped light-shielding sheet 6 and shorter than the light-shielding sheet 4a. The heat-shrinkable light-shielding film 4b is preferably provided on the surface of the light-shielding sheet 4a on the side not in contact with the photosensitive material roll.

It is preferable that the light-shielding sheet 4a shows little or no heat shrinkage, and a known light-shielding reader for a light-shielding photosensitive material roll can be used. Specific examples of the light-shielding sheet include a light-shielding plastic sheet such as a low-density polyethylene sheet mixed with a pigment such as carbon black.

In the heat-shrinkable light-shielding film 4b, it is preferable that the heat shrinkage in the length direction of the film is relatively larger than the heat shrinkage in the width direction. For example, the heat shrinkage in the length direction of the heat-shrinkable light-shielding film at 100 ° C. is 5% or more, preferably 15% or more, and is 1% or more, preferably 3% or more, as an absolute difference from the width-direction shrinkage. %, More preferably 5% or more. The heat shrinkage ratio of the heat shrinkable light-shielding film in the present invention is JIS Z 17
It is a value measured according to the method specified in 09-1976 (film for shrink wrapping).

The heat-shrinkable light-shielding film 4b is preferably capable of tearing in the length direction, and more preferably the Elmendorf tearing load in the length direction is in the range of 0.1 to 0.5N. If the Elmendorf tear load in the length direction is larger than 0.5 N, the heat-shrinkable light-shielding film becomes difficult to tear. The light-shielding film may be torn. The Elmendorf tear load of the heat-shrinkable light-shielding film was determined according to JIS K 7128-2: 1.
998 (Plastic film and sheet tear strength test method-Part 2).

As an example of the heat-shrinkable light-shielding film, a transparent or translucent shrink film having a large heat-shrinkability in the length direction and tearable in the length direction shows little or no heat-shrinkability. However, the present invention is not limited to such a laminated film in which a light-shielding film is laminated. Examples of the shrink film that can be used for the laminated heat-shrinkable light-shielding film include those in which the grade of fancy wrap (trade name, manufactured by Gunze KK) is THS, TNS, TAS, TBS, or TRS. The light-shielding film that can be used for the laminated heat-shrinkable light-shielding film includes, for example, a film such as a low-density polyethylene film mixed with a pigment such as carbon black.

The method of joining the light-sensitive material sheet and the light-shielding leader is not particularly limited, and the light-sensitive material sheet may be bonded using an adhesive tape, or may be fused using ultrasonic waves or heat.

The adhesive tape 5 is not particularly limited, and a known adhesive tape can be used.

Roll drive support adapter 9 for photosensitive material
Is composed of a ring-shaped substrate 15 having a circular hole at the center and a cylindrical projection 14 having a circular hole having a diameter smaller than the diameter of the substrate circular hole at the center of the tip end surface. The thickness of the roll driving support adapter for the photosensitive material is preferably in the range of 2 to 4 mm. Examples of the material for the roll drive support adapter for the photosensitive material include impact-resistant polystyrene and polycarbonate.

The light-shielding photosensitive material roll 11 can be manufactured, for example, as described below. (1) The hollow cylindrical member 7 is press-fitted into both ends of the core 2 of the photosensitive material roll 1 while penetrating the circular hole of the ring-shaped light-shielding sheet 6. (2) While wrapping the light-shielding reader 4 around the photosensitive material roll 1, hot air is blown onto the surface of the heat-shrinkable light-shielding film 4 b of the light-shielding leader that is in contact with the circumference of the ring-shaped light-shielding sheet 6. Here, the heat-shrinkable light-shielding film 4b is heat-shrinked, so that both end portions of the light-shielding reader (that is, the heat-shrinkable light-shielding film) are brought into contact with (close to) the outer surface of the ring-shaped light-shielding sheet 6. (3) The tip of the light-shielding leader at the end of the winding and the outer surface of the light-shielding leader one rotation before are sealed with the adhesive tape 5. (4) Contact (close contact) with the outer surface of the ring-shaped light-shielding sheet 6
The heater is pressed against the surface of the heat-shrinkable light-shielding film 4b. Here, a heat-shrinkable light-shielding film is fused to the outer surface of the ring-shaped light-shielding sheet 6.

Next, a description will be given of a photosensitive material roll driving support adapter and a method of fixing the same in the light-shielding photosensitive material roll with an adapter according to the present invention with reference to FIGS. FIG. 4 is a perspective view of the hollow cylindrical member and the roll driving support adapter for the photosensitive material according to the present invention. FIG. 5 is a perspective view showing a state in which a roll driving support adapter for a photosensitive material is fixed to a hollow cylindrical member according to the present invention. FIG. 6 is a view of the ring-shaped substrate of the roll driving support adapter for photosensitive material according to the present invention, as viewed from the back (the side without the cylindrical projection).

On the outer peripheral surface of the cylindrical projection 14 of the roll driving support adapter for photosensitive material, there are formed six convex portions 16 extending in the longitudinal direction at 60-degree divisions toward the center. Inside the hollow cylindrical portion 12 of the member 7, a groove 17 corresponding to the convex portion of the roll driving support adapter for photosensitive material is provided. The cylindrical projection 14 of the roll driving support adapter for photosensitive material preferably has a tapered tip as shown in FIG. The roll driving support adapter for the photosensitive material and the hollow cylindrical member can be firmly fixed by engaging the convex portion 16 and the groove 17 so that the adapter does not run idle in the core (see FIG. 5). ).

As shown in FIG. 5, the length of the cylindrical projection 14 of the roll driving support adapter for the photosensitive material is longer than the hollow cylindrical portion 12 of the hollow cylindrical member, and when the adapter is fixed to the hollow cylindrical member. The distal end of the cylindrical projection 14 of the adapter projects from the hollow cylindrical portion 12 of the hollow cylindrical member. In addition, the cylindrical projection of the roll drive support adapter for photosensitive material has
A notch 18 is formed from the tip surface toward the ring-shaped substrate,
Each of the regions 20 separated by the cut is provided such that a convex portion is formed on the outer peripheral surface of the cylindrical projection. Therefore, by pressing a part of the distal end surface of the cylindrical projection of the adapter fixed to the hollow cylinder with a finger or the like, the cylindrical projection of the adapter is deformed, and the groove of the hollow cylinder and the cylindrical projection of the adapter are deformed. The engagement with the projection is released, and the adapter fixed to the hollow cylindrical member can be easily removed.

A recess 25 is formed around the ring-shaped substrate 15 of the photosensitive material roll drive / support adapter. A preferred shape of the ring-shaped substrate 15 of the adapter will be described later.

The roll drive support adapter for photosensitive material is
An extension 19 is formed in which a circular hole at the tip end surface of the cylindrical projection 14 is extended toward the ring-shaped substrate 15, and the cylindrical projection 14 and the extension 19 in a region 20 separated by the cut 18 are formed. Reinforcing ribs 21 are formed between them (see FIG. 6). The reinforcing ribs are reinforced so that the extension portions can receive the photosensitive material roll drive support shaft.

FIG. 7 of the accompanying drawings is a sectional view of an example of a light-shielding photosensitive material roll with an adapter according to the present invention. As typical examples of the size of the light-shielding photosensitive material roll with an adapter of the present invention, the outer diameter of the light-shielding photosensitive material roll 11 is 122 mm, and the inner diameter of the core 2 is 73.7 mm (thickness is 2 m).
m), the diameter of the circular hole of the ring-shaped light shielding sheet 6 is 74.2 m.
m, the hollow cylindrical member 7 has a cylindrical portion having a length of 30 mm and an inner diameter of 7
2.5mm, flange diameter 90mm, adapter 9
Has a cylindrical portion of 50 mm in length, an outer diameter of 72 mm, and a ring-shaped substrate of 131 mm in diameter.

In the light-shielding light-sensitive material roll shown in FIGS. 1 to 7, the example in which the side light-shielding member comprises a ring-shaped light-shielding sheet and a hollow cylindrical member has been described. In the above, a side light-shielding member in which the ring-shaped light-shielding sheet and the hollow cylindrical member are integrated may be used.

FIG. 8 of the accompanying drawings shows a cross-sectional view of another example of the light-shielding photosensitive material roll with an adapter according to the present invention. In the light-shielding photosensitive material roll with an adapter shown in FIG.
The side surface light-shielding member 8 has substantially the same inner diameter of the core of the roll of photosensitive material at the center (preferably 0.2 to
A flange portion 22 having a circular hole having a diameter of about 1.0% and having a diameter substantially equal to the radius of the photosensitive material roll;
The hollow cylindrical portion 23 rises from the edge of the circular hole.
In the same manner as in the above-described case where the side light-shielding member is formed of the ring-shaped light-shielding sheet and the hollow cylindrical member, the inside of the hollow cylindrical portion 23 of the side light-shielding member 8 corresponds to the convex portion of the roll drive support adapter for the photosensitive material. Groove 17 is provided.
By engaging with the convex portion 16 of the adapter 9, the adapter is firmly fitted so that the adapter does not run idle in the core.

Some plate making machines using the photosensitive material roll rewind the photosensitive material sheet unwound from the light-shielding photosensitive material roll when the machine is stopped and return it to a roll shape. However, in the light-shielding photosensitive material roll with an adapter of the present invention, when the photosensitive material sheet unwound from the light-shielding photosensitive material roll is rewound to the core again, the side end portion of the photosensitive material sheet has a flange of the side light-shielding member. The present inventor's research has revealed that the photosensitive material sheet tends to be caught by the edge of the portion (ring-shaped light-shielding sheet), which tends to cause winding deviation. As a result of further study, the present inventor has found that the surface of the ring-shaped substrate of the adapter that is in contact with the flange of the side light shielding member has a depth corresponding to the thickness of the flange of the side light shielding member (hereinafter, engraving). Part), and by forming an engraving (recess) that is deeper than the thickness of the flange portion of the side light shielding member on the surface of the ring-shaped substrate of the adapter that is in contact with the edge of the flange portion of the side light shielding member. It has been found that the side edge of the photosensitive material sheet is less likely to be caught by the flange portion of the side light shielding member.

FIG. 9 is a partial cross-sectional view of an example of a light-shielding photosensitive material roll with an adapter according to the present invention using a photosensitive material roll drive and support adapter in which a carved portion and a concave portion are formed on a ring-shaped substrate. It is. In the example shown in FIG. 9, a slope 26 is formed between the engraved portion 24 and the recess 25, and the flange (the ring-shaped sheet 6) of the side surface light shielding member 8 is bent along the slope. It has become. The thickness t ₁ of the ring-shaped substrate 15 of the adapter is usually
It is in the range of 2.8 to 3.5 mm, and the thickness t ₂ of the engraved portion 24 depends on the thickness of the flange portion (ring-shaped sheet 6) of the side surface light shielding member 8, but is usually 2.4 to 2.7 mm. Within range. The thickness t ₃ of the recess 25, 0.8.
It is preferable to set it within the range of 6 mm. It is preferable that the length L ₁ of the slope portion 26 be set so that the slope of the slope portion falls within a range of 10 to 30 degrees with respect to the surface of the engraved portion 24.

In the roll driving and supporting adapter for photosensitive material of the present invention, the tip of the cylindrical portion (hollow cylindrical member) of the side light shielding member on the outer surface of the cylindrical projection is provided in order to enhance the engagement with the side light shielding member. May be provided at a position corresponding to. FIG. 10 is a perspective view of an example of a roll driving support adapter for a photosensitive material according to the present invention in which an engaging claw portion is provided on the outer surface of the projection. The engaging claw 27 is provided with the claw 2
8, the claw portion 28 is projected from the outer surface of the cylindrical protrusion in a normal state, and the claw portion 28 is supported so as not to protrude from the outer surface of the cylindrical protrusion when the adapter is attached to and detached from the side light shielding member. And a flexible support portion 29.

FIG. 11 shows a state in which the photosensitive material roll drive / support adapter provided with the engaging claw portion is engaged with the side surface light shielding member. Since the claw portion 28 of the engagement claw portion 27 is engaged with the tip of the tubular portion (hollow tubular member) of the side face light blocking member 8, the engagement between the cylindrical projection 14 of the adapter and the side face light blocking member is extremely low. Become higher.

[0043]

The light-shielding light-sensitive material roll with an adapter according to the present invention can be loaded in both a core supporting type and a hard side light-shielding member supporting type plate making machine since the adapter is detachable. Further, the light-shielding photosensitive material roll with an adapter of the present invention can be easily removed after use, so that separation and disposal are easy. Further, the roll driving support adapter for photosensitive material of the present invention can be advantageously used for loading a light-shielding photosensitive material roll into a plate making machine.

[Brief description of the drawings]

FIG. 1 is a perspective view of an example of a light-shielding photosensitive material roll with an adapter according to the present invention.

FIG. 2 is a perspective view of an example of a light-shielding photosensitive material roll with an adapter according to the present invention, showing a state in which the adapter is removed from the light-shielding photosensitive material roll.

FIG. 3 is an exploded perspective view of an example of a light-shielding photosensitive material roll with an adapter according to the present invention.

FIG. 4 is a perspective view of a side light shielding member and a roll driving support adapter for a photosensitive material according to the present invention.

FIG. 5 is a perspective view showing a state in which a roll driving support adapter for a photosensitive material is fixed to a side light shielding member.

FIG. 6 is a view of the ring-shaped substrate of the roll driving support adapter for a photosensitive material of the present invention as viewed from the back.

FIG. 7 is an enlarged sectional view of an example of a light-shielding photosensitive material roll with an adapter according to the present invention.

FIG. 8 is an enlarged sectional view of another example of the light-shielding photosensitive material roll with an adapter of the present invention.

FIG. 9 is a partial sectional view of an example of a light-shielding photosensitive material roll with an adapter according to the present invention.

FIG. 10 is a perspective view of an example of a roll driving support adapter for a photosensitive material of the present invention provided with an engagement claw.

FIG. 11 is a diagram showing a state in which a roll driving support adapter for a photosensitive material provided with an engaging claw is engaged with a side light shielding member.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 photosensitive material roll 2 core 3 photosensitive material sheet 4 light-shielding reader 4 a light-shielding sheet 4 b heat-shrinkable light-shielding film 5 adhesive tape 6 ring-shaped light-shielding sheet 7 hollow cylinder member 8 side light-shielding member 9 adapter 11 light-shielding photosensitive material roll 12 hollow cylinder Part 13 Flange part 14 Cylindrical projection 15 Ring-shaped substrate 16 Convex part 17 Groove 18 Cut 19 Extension part 20 Separated area 21 Reinforcement rib 22 Flange part 23 Hollow cylinder part 24 Carved part 25 Depressed part 26 Slope part 27 Engagement Claw 28 Claw 29 Flexible support

Claims (8)

[Claims] 1. A photosensitive material roll formed by winding a long photosensitive material sheet around a hollow core, and a radius of the photosensitive material roll attached to both ends of the core of the photosensitive material roll. A side light-shielding member having substantially the same radius as the light-sensitive material roll, which is joined to the leading end of the long photosensitive material sheet, the length is longer than the circumference of the side light-shielding member, and the width is long. A light-shielding leader wider than the width of the light-sensitive material sheet, and both side ends of the light-shielding leader are in contact with the outer surface of the side light-shielding member. A ring-shaped substrate formed and having a circular hole in the center, and a cylindrical shape having a circular hole rising from the edge of the circular hole and having a diameter smaller than the diameter of the substrate circular hole in the center of the tip surface. Roll drive support for photosensitive material consisting of protrusions A light-shielding photosensitive material roll provided with an adapter, wherein the adapter is repeatedly detachably fitted through the cylindrical projection. 2. The side light-shielding member has a circular hole having a diameter substantially equal to the inner diameter of the core of the roll of photosensitive material at the center, a flange having a radius substantially equal to the radius of the roll of photosensitive material, and the circular hole. 2. A light-shielding photosensitive member with an adapter according to claim 1, wherein the light-shielding photosensitive member is provided with a hollow cylindrical portion rising from an edge of the core, the outer surface of the hollow cylindrical portion being fixed in contact with an inner wall of the core. Material roll. 3. The side light-shielding member has a circular hole having a radius substantially the same as the radius of the photosensitive material roll, and a central hole having a diameter larger than the inner diameter of the core and smaller than the outer diameter of the core. A ring-shaped light-shielding sheet having the same outer diameter as the inner diameter of the core,
A hollow cylindrical member having a flange at one end, the hollow cylindrical member penetrating through the circular hole of the ring-shaped light-shielding sheet, and the outer surface thereof is formed on the inner wall of the core of the photosensitive material roll. 2. The light-shielding photosensitive material roll with an adapter according to claim 1, wherein the light-shielding photosensitive material roll is fixed in a contact state. 4. An outer peripheral surface of a cylindrical projection of a roll drive support adapter for a photosensitive material, wherein two or more convex portions extending along a length direction are formed on an inner wall of a winding core of a side light shielding member. At the contacting portion, a groove corresponding to the convex portion is formed along the width direction of the photosensitive material roll, and by engaging the convex portion with the groove, the light-shielding photosensitive material roll is formed. The light-shielding photosensitive material roll with an adapter according to claim 2 or 3, wherein an adapter is fitted inside the core. 5. A cylindrical projection of a roll driving support adapter for a photosensitive material is provided with two or more cuts along a longitudinal direction, and each of the regions separated by the cut has a convex portion. The light-shielding photosensitive material roll with an adapter according to claim 4, wherein the roll is provided. 6. A cylindrical protrusion of a cylindrical drive of a roll driving support adapter for a photosensitive material, wherein a circular hole is extended toward the ring-shaped substrate, and each of the regions separated by cutting is provided with a cylindrical protrusion. 6. The light-shielding light-sensitive material roll with an adapter according to claim 5, wherein one or more reinforcing ribs interposed between the roll and the inner side surface are formed. 7. The light-shielding reader according to claim 1, wherein both end portions of the light-shielding leader are fused to the outer surface of the side light-shielding member.
The light-shielding photosensitive material roll with an adapter according to any one of the above items. 8. A ring-shaped substrate formed of a hard resin material and having a circular hole in the center, and a diameter rising from the edge of the circular hole and smaller than the diameter of the substrate circular hole in the center of the tip end surface. A roll drive support adapter for a photosensitive material, comprising a cylindrical projection having a circular hole formed of the same.