JPH11209004A - Core for taking up sheet material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To take up and accumulate sheet materials such as a photosensitive material and image receiving material and also separate a core easily from the taken-up sheet material without requiring trouble and labor. SOLUTION: A core member 132 of a core 130 is composed of a first main body 132A, a second main body 132B, and a third main body 132C which are divided into 3 parts along the axial direction. A projection 150 formed on each main body can be put into a cam notch 146 of a cam 140. For this reason, when the cam 140 rotates, the inner peripheral wall of the cam notch 146 is engaged with the projection 150, so that all main bodies are mutually pulled nearer in an inward direction of the diameter and consequently the outside diameter of the core 130 is reduced. Therefore, the core 130 can be easily removed from a sheet material, after the sheet material is taken up in stara around the periphery of the core 130.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a core for winding a sheet material for winding a sheet material such as a photosensitive material or an image receiving material around an outer periphery.

[0002]

2. Description of the Related Art As an image recording material, for example, an image recording apparatus for performing an image recording process using a photosensitive material and an image receiving material is known.

In this type of image recording apparatus, a photosensitive material and an image receiving material are respectively wound and housed in a roll in a light-shielded magazine, and each time an image recording process is performed, a drawing roller is used. It is pinched and pulled out for use. In the image recording apparatus, an exposure unit for imagewise exposing the photosensitive material is arranged, and a water application unit for applying an image forming solvent to the exposed photosensitive material is arranged. Further, a thermal development transfer section is arranged beside the water application section. A plurality of guide plates and transport rollers are arranged between the exposure unit, the water application unit, and the heat development transfer unit, and connect the units.

The photosensitive material cut out by being drawn out of the magazine by a predetermined size is exposed to an image while being nipped and conveyed by a conveying roller. Sent to On the other hand, the image receiving material is pulled out from the magazine by a predetermined size in the same manner as the photosensitive material, cut off, and sent to the thermal development transfer section in synchronization with the photosensitive material by a transport roller. In the heat development transfer section, the photosensitive material after water application is superimposed on the image receiving material, and while being conveyed in this state, the photosensitive material is thermally developed and an image is transferred to the image receiving material to form a predetermined image on the image receiving material. (Recorded). Thereafter, the photosensitive material and the image receiving material are separated, and the image receiving material on which the image is recorded is taken out of the apparatus.

Here, in such a conventional image recording apparatus, since the photosensitive material separated from the image receiving material is discarded as described above, it is necessary to collect them together. In this case, the photosensitive material after being separated from the image receiving material,
It is conceivable to sequentially wind and accumulate on the outer periphery of a cylindrical core.

[0006] By winding and accumulating on such a winding core, it is possible to efficiently accumulate in a small space.
In addition, curling may occur after the photosensitive material coated with water as described above is heated and separated from the image receiving material. However, if the photosensitive material is wound around a core and accumulated, it may be accumulated regardless of the occurrence of curl. Therefore, it is not necessary to provide a pressing plate for preventing curling, or to add a fold (corrugation) to the photosensitive material itself to increase rigidity, so that the structure is simple and the cost is low.

[0007]

As described above, when a sheet-like material such as a photosensitive material is wound around a core and accumulated, as described above, the core and the core are naturally wound around the core. It is necessary to separate the sheet material.

However, after the above-described sheet material such as a photosensitive material is wound in a layer on the core, it is difficult to separate (pull out) only the core from the sheet material wound in close contact with the layer. It is difficult, and measures for this point are desired.

In view of the above facts, the present invention not only can take up and stack a sheet-like material such as a photosensitive material or an image-receiving material, but also requires labor and labor from the wound-up sheet material. An object of the present invention is to provide a winding core for winding a sheet material, which can be easily separated without any trouble, and can be realized by a simple structure.

[0010]

In order to achieve the above object, a winding core for winding a sheet material according to the first aspect of the present invention is formed in a substantially cylindrical shape as a whole, and has a three-dimensional shape along an axial direction. A core member that is divided into two or more and is configured to be capable of coming and going in a radial direction with respect to each other, and a core member that winds a sheet-shaped material around an outer periphery, and is provided inside the core member. An outer diameter expanding / contracting mechanism for bringing the divided main body portions into and out of contact with each other in the radial direction to expand / contract the outer diameter of the core member,
It has.

In the core for winding a sheet material according to the first aspect, a core member is constituted by a main body divided into three or more, and the sheet material is a core member (each divided main body). Are sequentially wound up in layers.

Here, when the core material is separated (extracted) from the layered sheet material after the sheet material is wound in a layer shape on the core member, the outer diameter expansion / contraction mechanism is operated. Thereby, the main bodies divided into three or more approach each other in the radial direction, and the outer diameter of the core member is reduced. Thereby, the core member can be easily separated from the sheet material wound in close contact with the layer.

As described above, not only the sheet material such as the photosensitive material and the image receiving material can be wound and accumulated, but also it can be easily separated from the wound sheet material without labor and labor. be able to. Further, since the core member is configured to be divided into three or more along the axis, it can be expanded and contracted to a large degree over the entire circumference with respect to the wound sheet material, and can be wound in a layered manner. The core member can be reliably separated from the taken sheet material.

It should be noted that "sheet-like material" and "sheet material"
Encompasses so-called cut paper and continuous so-called roll paper.

On the other hand, the core for winding a sheet material according to the second aspect of the present invention is the core for winding a sheet material according to the first aspect, wherein the core is provided inside the core member. When the outer diameter of the member is reduced, a plurality of peeling members projecting from the surface of the main body to the outside are provided.

In the core for winding a sheet material according to the second aspect, the outer diameter of the core member is reduced, that is,
When the outer diameter of the core member is reduced in order to separate (extract) the core member from the sheet material after the sheet material is wound in a layer on the core member, a plurality of peeling members are separated from the surface of the main body. Project outside. For this reason, even if the sheet material tries to adhere to the core member even if the outer diameter of the core member is reduced, the sheet material is forcibly removed from the core member (each body).
And the core member can be more reliably separated from the sheet material closely wound up.

As the peeling member, a pin-shaped peeling pin, a tubular peeling piece, a leaf spring-like peeling spring, or the like can be used.

According to a third aspect of the present invention, in the core for winding a sheet material according to the first or second aspect, the core for winding the sheet material is wound around an outer periphery of the core member. A stopper member attached to a surface of the main body portion corresponding to an edge in the width direction of the sheet-shaped material to be formed and preventing the sheet-shaped material from being displaced along the axial direction of the core member. It is characterized by:

According to the third aspect of the present invention, when the sheet material is sequentially wound around the outer periphery of the core member (each main body) in a layered manner, the stopper member is disposed in the width direction of the sheet material. The edge engages the edge, thereby preventing the sheet material from being displaced in the axial direction of the core member. Therefore, the sheet material can be more uniformly (efficiently) wound around the outer periphery of the core member (each body). Therefore, the core member can be more easily separated from the sheet material wound in close contact with the layer.

According to a fourth aspect of the present invention, the core for winding a sheet material according to the third aspect of the present invention is the core for winding a sheet material according to the third aspect, wherein two or more pairs of stopper pieces are provided as the stopper members. Are arranged so as not to be located on the same line as each other.

In the core for winding a sheet material according to the fourth aspect, one set of stopper rubbers is made of, for example, A3, A4,
The stopper rubber of the other set is provided corresponding to, for example, a 2L, postcard-size sheet material. Thus, when the sheet material of each size is wound around the outer periphery of the core member, even if the size of the sheet material to be wound is different, the deviation of the sheet material along the axial direction of the core member is ensured. Can be prevented.

According to a fifth aspect of the present invention, there is provided the core for winding a sheet material according to any one of the first to fourth aspects. It is characterized in that it has an attaching portion provided on the surface of the main body portion corresponding to the leading portion of the sheet-shaped material wound around the outer periphery, and the leading portion of the sheet-shaped material is first attached. .

In the core for winding a sheet material according to the fifth aspect, since the leading portion of the sheet-like material is first attached to the attaching portion provided on the surface of the main body, the sheet material is wound on the core. It can be reliably wound around the outer periphery of the member.

In this case, it is preferable that the width of the sticking portion along the circumferential direction of the member is set to 1 mm to 40 mm like the winding core for winding the sheet material according to the sixth aspect of the present invention. More particularly, it is more preferable to set the width of the sticking portion along the circumferential direction of the member to 20 mm.

According to a seventh aspect of the present invention, in the core for winding a sheet material according to the fifth or sixth aspect, the core member is provided with a rotation position detecting member. By providing a phase plate and detecting the position of the phase plate, the rotation of the core member and the entry of the sheet-shaped material are synchronized, and the leading portion of the sheet-shaped material is first attached to the attaching portion. Affixed to the device.

In the winding core for winding a sheet material according to the present invention, the rotation of the winding core member and the sheet-like material can be detected by detecting the position of a rotation position detecting phase plate provided on the winding core member. The entry is performed synchronously, and the head portion of the sheet-like material is first attached to the attachment portion. For this reason, the sheet material can be reliably wound around the outer periphery of the core member.

According to a eighth aspect of the present invention, the core for winding a sheet material according to any one of the fifth to seventh aspects is the core for winding a sheet material according to any one of the fifth to seventh aspects. The surface is formed to have a surface roughness R _Z = 0.1 μm or less, and the surface of the main body other than the pasted portion is formed to have a surface roughness R _Z = 10 μ or more.

In the winding core for winding a sheet material according to claim 8, the surface of the affixed portion has a surface roughness R _Z = 0.1.
μ or less (in other words, because it is formed in a mirror-like state), the top portion of the sheet-like material is more easily attached to this attachment portion, and the sheet material is attached to the outer periphery of the core member. Can be taken up reliably. On the other hand, the surface of the main body other than the pasted portion has a surface roughness R _Z = 10 μm.
Since the sheet material is formed as described above, it is difficult for the sheet material to adhere to the core member at a portion other than the sticking portion, and the sheet material can be easily peeled off from the surface of the core member (each body). In addition, the core member can be more reliably separated from the sheet material that has been tightly wound.

[0029]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 10 shows the overall configuration of an image recording apparatus 10 to which a winding core 130 for winding a sheet material according to an embodiment of the present invention is applied.

The image recording apparatus 10 includes a machine base 12. A photosensitive material magazine 16 for accommodating a photosensitive material 14 as an image forming sheet material is arranged in the machine base 12, and a photosensitive (exposure) surface of the photosensitive material 14 drawn out of the photosensitive material magazine 16 is illustrated in FIG. It is wound in a roll shape in the photosensitive material magazine 16 so as to face the center left.

A nip roller 18 and a cutter 20 are disposed in the vicinity of the photosensitive material outlet of the photosensitive material magazine 16 so that the photosensitive material 14 can be cut out after the photosensitive material 14 is drawn out of the photosensitive material magazine 16 by a predetermined length.

Above the cutter 20, a plurality of conveying rollers 22, 24, 26, 28, 30, 32 are arranged in order, and a guide plate (not shown) is arranged between the conveying rollers. An exposure section 34 is provided between the transport roller 22 and the transport roller 24, and the photosensitive material 14 cut to a predetermined length is transported to the exposure section 34.

On the left side of the exposure section 34, a laser beam irradiation section 36 is provided.
Is provided. A semiconductor laser (not shown) is provided in the laser beam irradiation unit 36, and can irradiate red, green, and blue laser beams to expose the photosensitive material 14 located in the exposure unit 34.

Further, a water application section 38 for applying an image forming solvent is provided above the exposure section 34. The photosensitive material 14 drawn out of the photosensitive material magazine 16 and exposed by the exposure unit 34 is nipped and conveyed by conveyance rollers 26 and 28 and sent to the water application unit 38. An injection tank 40 is disposed in the water application section 38, and water can be injected from the injection tank 40 at the position indicated by the arrow Z to apply water to the photosensitive material 14.

On the other hand, a receiving material magazine 44 for storing the image receiving material 42 is disposed at the upper left end in the drawing of the machine base 12. A dye fixing material having a mordant is applied to the image forming surface of the image receiving material 42, and the image receiving material 42 is pulled out from the material receiving magazine 44 so that the image forming surface of the image receiving material 42 faces downward. It is wound in a roll shape around 44.

A nip roller 46 and a cutter 48 are arranged in the vicinity of the image receiving material outlet of the material receiving magazine 44, and can cut the image receiving material 42 after the image receiving material 42 is drawn out from the material receiving magazine 44 by a predetermined length. In this case, the image receiving material 42 is cut into a shorter length than the photosensitive material 14.

On the side of the cutter 48, there are transport rollers 50,
52, 54, 56 and a guide plate (not shown) are arranged so that the image receiving material 42 cut to a predetermined length can be conveyed to the thermal development transfer unit 58.

The thermal development transfer section 58 is provided with a pair of endless belts 60 and 62 each having a vertical direction as a longitudinal direction. These endless belts 60 and 62 are wound around a plurality of winding rollers 64 respectively. It is hung, and the loop-shaped outside is pressed against each other. These endless belts 6
0 and 62 are respectively rotated by driving and rotating any of the winding rollers 64.

Accordingly, the photosensitive material 14 is fed between the pair of endless belts 60 and 62 of the thermal development transfer section 58 by the last transport roller 32 in the transport path. Further, the image receiving material 4
2 is conveyed in synchronization with the conveyance of the photosensitive material 14, and in a state where the photosensitive material 14 is advanced by a predetermined length, between the pair of endless belts 60 and 62 of the thermal development transfer section 58 by the last conveyance roller 56 of the conveyance path. It is sent and superposed on the photosensitive material 14.

Further, in the loop of one endless belt 60, a heating plate 66 formed into a flat plate with the longitudinal direction being the longitudinal direction is arranged facing the inner peripheral portion on the left side of the endless belt 60 in the drawing. Have been. Inside the heating plate 66,
A linear heater (not shown) is provided, and the surface of the heating plate 66 can be heated to a predetermined temperature by the heater.

As described above, the photosensitive material 14 and the image receiving material 42 superposed by the pair of endless belts 60 and 62
Is a pair of endless belts 6 in the superposed state.
In this case, the photosensitive material 14 is heated by the heating plate 66, and the photosensitive material 14 emits a movable dye with the heating. At the same time, the dye is transferred to the dye fixing layer of the image receiving material 42. The image can be transferred and an image can be formed on the image receiving material 42.

Thermal development transfer section 58 (endless belts 60, 6)
On the downstream side in the material supply direction with respect to 2), a peeling claw 68 is arranged. The peeling claw 68 includes a pair of endless belts 60,
Of the photosensitive material 14 and the image receiving material 42 which are pinched and conveyed between the photosensitive material 14 and the photosensitive material 1
4 can be peeled from the image receiving material 42.

A photosensitive material discharge roller 70 is disposed on the left side of the peeling claw 68 in the drawing, so that the photosensitive material 14 moved while being guided by the peeling claw 68 can be further conveyed to the stacking device 90. I have.

Further, receiving material discharge rollers 72, 74, 76, 78, and 80 are sequentially disposed on the left side of the peeling claw 68 in the drawing, and the image receiving material 42 sent out from the pair of endless belts 60 and 62 is arranged. Can be discharged to the tray 82.

FIG. 11 is a perspective view showing the structure of the integrated device 90. 12 and 13 show the configuration of the integrated device 90 in a cross-sectional view.

The accumulating device 90 has an upper main body 92 and a lower main body 94. The upper main body 92 and the lower main body 94 are both formed in a box shape, and a lower end corner of the upper main body 92 is rotatably connected to an upper end corner of the lower main body 94 by a support shaft 96. Therefore, the inside of the apparatus can be opened by rotating the upper main body 92 around the support shaft 96.

The lower body 94 supports a winding core 130 and rollers 98, 100 and 102, which will be described in detail later. The upper body 92 includes rollers 104 and 106,
108, 110, 112 are supported. Further, these winding cores 130 and rollers 98, 100, 102,
An endless belt 114 is wound around 104, 106, 108, 110 and 112. That is, the endless belt 114 is wound around each of the rollers, and the endless outer side thereof is pressed against the winding core 130.

A drive source (not shown) is connected to the roller 98 to form a drive roller. A guide roller 116 is provided directly above the roller 98. Therefore, the rotation of the roller 98 causes the endless belt 11 to rotate.
4 and the guide roller 116 are rotated, and the core 130 is also rotated accordingly.

Thus, the photosensitive material 14 peeled from the image receiving material 42 by the peeling claw 68 and sent out by the photosensitive material discharge roller 70 is guided and fed between the endless belt 114 and the winding core 130 by the guide roller 116. Further, it can be sequentially wound around the winding core 130 while being sandwiched between the endless belt 114 and the winding core 130.

The roller 104 has a spring 118.
Are connected to apply a predetermined tension to the endless belt 114. Further, at both ends in the axial direction of the roller 104, frusto-conical guide portions 120 are provided, so that the endless belt 114 can be prevented from meandering (deviation).

Further, the uppermost roller 108
Is slidable along a guide groove 122 provided in the upper main body 92,
4 energized. That is, the roller 108 and the spring 124 constitute a buffer section 126 of the endless belt 114. When the photosensitive material 14 is wound around the winding core 130 and the winding diameter gradually increases, the roller 108 The endless belt 114 can be moved (displaced) along the direction 122 to absorb an apparent increase or decrease in the winding length of the endless belt 114.

Here, FIG.
Is shown in an exploded perspective view. FIG. 2 is a front view of the core 130, and FIG.
0 is shown. Further, FIG.
30 is shown, and FIGS. 5 to 7 show cross-sectional views of the winding core 130.

The core 130 includes a core member 132 formed in a substantially cylindrical shape as a whole. Core member 1
32 denotes a first main body 132A and a second main body 132
B and the third main body 132C, and is formed in a substantially cylindrical shape as a whole. Claws 136 are formed at both ends in the axial direction of the first main body 132A, the second main body 132B, and the third main body 132C so as to protrude in the radial direction.

The core member 132 (the first main body 13)
2A, second main body 132B, and third main body 132
A support shaft 142 is provided at the center of C). A pair of guide rails 134 are attached to the support shaft 142 so as to be rotatable relative to the support shaft 142. The guide rail 134 is formed in a Mitsubishi shape corresponding to each of the first main body 132A, the second main body 132B, and the third main body 132C, and further, is fitted corresponding to the claw 136. A hole 138 is formed. Fitting hole 138
Are formed so as to be radially elongated with respect to the support shaft 142 in the radial direction. As shown in FIG. 8, the first main portion 132A, the second main portion 132B, and the third main portion 132C are integrally connected by fitting the claws 136 into the fitting holes 138. Thus, a substantially cylindrical core member 132 is formed as a whole.

The core member 132 (the first main body 13)
2A, second main body 132B, and third main body 132
A plurality of through holes 156 are formed at predetermined intervals along the circumferential direction and the axial direction on the surface of C). This through hole 15
Reference numeral 6 corresponds to a peeling pin 166 as a peeling member described later.

Further, a pair of stopper rubbers 160 are attached to the first main body 132A at predetermined intervals.
Further, a pair of stopper rubbers 162 are attached to the second main body 132B at predetermined intervals. As shown in FIG. 2, one set of stopper rubber 160 is attached to the first main body 1.
It is located 149 mm apart from each other along the axial direction of 32A, and corresponds to the widthwise edge of, for example, a 2L, postcard-sized photosensitive material 14 wound around the outer periphery of the core member 132. Also, the other set of stopper rubber 162 is
Along the axial direction of the second main body 132B,
mm, and corresponds to the widthwise edge of the photosensitive material 14 of, for example, A3, A4, quarter cut, or six cut size wound around the outer periphery of the core member 132. Further, one set of stopper rubber 160 and the other set of stopper rubber 162
They are located 6 mm apart. Accordingly, the stopper rubber 160 and the stopper rubber 162 prevent the photosensitive material 14 of each size from being unwound along the axial direction of the core member 132 when the photosensitive material 14 is wound around the core member 132. It has a role to do.

Further, as shown in FIG. 9, on the surface of the third main body 132C constituting the core member 132, an attaching portion 170 is provided. The width of the pasting portion 170 along the circumferential direction of the third main body 132C is set to 20 mm (a preferable range is 1 mm to 40 mm).
mm), and the surface has a surface roughness R _Z =
It is formed to 0.1 μm or less. This pasting section 170
The photosensitive material 14 wound around the outer periphery of the core member 132
Is attached first.

The core members 132 (the first main body 132A, the second main body 132
B and the surface of the third main body 132C) are formed to have a surface roughness R _Z = 10 μ or more.

A pair of cams 140 constituting an outer diameter expansion / contraction mechanism are provided inside the core member 132 (the first main body 132A, the second main body 132B, and the third main body 132C) having the above configuration. Are accommodated. As shown in detail in FIGS. 5 and 6, each cam 140 is formed in a substantially disk shape, and is integrally fixed to a support shaft 142. As a result, the cam 140 is rotatably supported inside the core member 132, and in this supported state, each cam 140
Are located near both ends in the axial direction of the core member 132.

The cam 140 has three cam grooves 146 formed at the outer peripheral edge. Each cam groove 14
6 is formed by being gradually cut from the outer peripheral edge of the cam 140 toward the center, and the holding portion 14
8 are formed. The cam grooves 146 have projections 150 formed on the inner surfaces of both end walls in the axial direction of the first main body 132A, the second main body 132B, and the third main body 132C, respectively. In this case, the projection 15
0 is located in the holding portion 148 of the cam groove 146 (FIG. 5).
In the illustrated state), the protrusion 150, that is, the first main body 13
2A, second main body 132B, and third main body 132
C is separated from the cam 140, that is, separated from each other, and the approach movement of each body is restricted. On the other hand, when the cam 140 rotates together with the support shaft 142, the inner peripheral wall of the cam groove 146 engages with the protrusion 150,
Each of the projections 150, that is, the first main body 132A, the second main body 132B, and the third main body 132C,
In this configuration, they can be pulled toward each other (that is, toward the support shaft 142).

Each cam 140 has a spring 15
2. One end of the spring 153 is connected. Further, the other end of the spring 152 is locked to the first main body 132A, and the other end of the spring 153 is locked to the second main body 132B. These springs 15
2. The spring 153 is provided between the cam groove 146 and the protrusion 150.
Urges the cam 140 in the direction in which the cam 140 comes out. For this reason, usually, the projection 150 is provided in the holding portion 148 of the cam groove 146.
, Whereby the first main body 132A,
The second main body 132B and the third main body 132C are
They are separated from each other (that is, from the support shaft 142), and are in a state in which the approaching movement of each other (that is, to the support shaft 142) is restricted.

One end of a support shaft 142 to which the cam 140 is fixed and which holds the guide rail 134 protrudes from the guide rail 134 to the outside, and a handle 154 is attached to the end. By operating the handle 154, the support shaft 142, that is, the cam 140
Can be rotated.

Further, a plurality of spacers 164 are arranged inside the core member 132 (the first main body 132A, the second main body 132B, and the third main body 132C). The spacer 164 is formed in a substantially disk shape corresponding to the core member 132, and has a support shaft 142
Are provided adjacent to each other along the axial direction of the support shaft 142 and are integrally connected.

On the outer peripheral portion of these spacers 164,
As shown in detail in FIG. 7, a peeling pin 166 projecting outward in the radial direction is formed. Each release pin 166
Corresponds to the through hole 156 of the core member 132 described above, and can be fitted into the through hole 156. Further, in this case, the projecting direction of each peeling pin 166 is
32A, second main body 132B, and third main body 13
2C are formed corresponding to the directions of expansion and contraction (in other words, directions along the fitting holes 138 of the guide rails 134).

These peeling pins 166 are attached to the core member 13.
In a state in which the outer diameter of the second main body 132 is reduced, each of the parts penetrates the through-hole 156 and protrudes outside from the surface of the first main body 132A, the second main body 132B, and the third main body 132C. Is set.

Further, a phase plate 172 for detecting a rotational position is provided at one end of the winding core member 132 (to the side of the one guide rail 134). By detecting the position of the phase plate 172, the rotation of the core member 132 and the entry of the photosensitive material 14 wound around the outer periphery of the core member 132 are synchronized with each other. The head portion of the photosensitive material 14 is attached first.

Next, the operation of the present embodiment will be described.

In the image recording apparatus 10 having the above structure, the nip roller 18 is operated, and the photosensitive material 14 is moved to the nip roller 1.
Withdrawn by 8. When the photosensitive material 14 is pulled out by a predetermined length, the cutter 20 is operated to cut the photosensitive material 14 into a predetermined length, and the exposing section 34 with its photosensitive (exposure) surface directed leftward in the drawing. Transported to And
The laser beam irradiator 36 operates simultaneously with the passage of the photosensitive material 14 through the exposure unit 34.

The laser beam irradiating section 36 emits a laser beam based on the image data and irradiates the photosensitive material 14 located at the exposing section 34. Thus, the photosensitive material 14 is scanned and exposed to an image based on the image data.

The exposed photosensitive material 14 is sent to a water application section 38. In the water application section 38, water is sprayed from the spray tank 40 toward the photosensitive material 14 being conveyed, and the photosensitive material 14 is coated with water. Thereafter, the photosensitive material 14 to which the water has been applied is fed by the transport roller 32 between the pair of endless belts 60 and 62 of the thermal development transfer unit 58.

On the other hand, as the photosensitive material 14 is scanned and exposed, the image receiving material 42 is also pulled out of the material receiving magazine 44 by the nip roller 46 and transported. Image receiving material 42
Is pulled out by a predetermined length, the cutter 48 operates to cut the image receiving material 42 to a predetermined length.

After the operation of the cutter 48, the cut image receiving material 42 is guided by the guide plate while the transport roller 5
0, 52, 54 and 56. Image receiving material 4
When the leading end portion 2 is nipped by the transport roller 56, the image receiving material 42 enters a standby state immediately before the thermal development transfer section 58.

As the photosensitive material 14 is fed between the pair of endless belts 60 and 62 by the conveying rollers 32 as described above, the conveyance of the image receiving material 42 is restarted, and the pair of endless belts 60 and 62 are resumed. The image receiving material 42 is fed into the gap with the photosensitive material 14.

Thus, the photosensitive material 14 and the image receiving material 42
Are superimposed, and the overlapped photosensitive material 14 and image receiving material 42 are nipped and conveyed while being heated by the heating plate 66. As a result, the image exposed on the photosensitive material 14 is transferred to the image receiving material 42, and an image is formed on the image receiving material 42.

Further, when these are discharged from the pair of endless belts 60 and 62, the peeling claw 68 is engaged with the leading end of the photosensitive material 14 which is conveyed ahead of the image receiving material 42 by a predetermined length. The leading end of the material 14 is peeled from the image receiving material 42. Further, the photosensitive material 14 is used as a photosensitive material discharge roller 70.
And is accumulated in the accumulation device 90.

On the other hand, the image receiving material 42 separated from the photosensitive material 14 is supplied to the receiving material discharge rollers 72, 74, 76, 78, 80.
And discharged to the tray 82.

Here, in the stacking device 90 on which the photosensitive material 14 is stacked, the photosensitive material 14 peeled off from the image receiving material 42 by the peeling claw 68 and sent out by the photosensitive material discharge roller 70 is transferred by the guide roller 116 to the endless belt 1.
It is guided and fed between 14 and the winding core 130. As a result, the photosensitive material 14 is separated from the endless belt 114 and the core 130.
Are sequentially wound around the winding core 130 while being sandwiched between these.

In the accumulating device 90, the photosensitive material 14 to be wound is heated after being coated with water, has adhesiveness, and can be reliably wound around the core 130. This is particularly effective when stacking sheets having adhesiveness, which is difficult to stack one by one.

In this case, the core 130 of the accumulating device 90 detects the position of the phase plate 172 provided on the core member 132 for detecting the rotational position.
Is rotated in synchronization with the entry of the photosensitive material 14, and the leading portion of the photosensitive material 14 is attached to the attaching section 170 first. Further, since the surface of the sticking section 170 is formed with a surface roughness R _Z = 0.1 μ or less (in other words, it is formed in a mirror-like state), the photosensitive material is applied to the sticking section 170. The top portion of the photosensitive material 14 is more easily adhered to the photosensitive material 14, so that the photosensitive material 14 can be reliably wound around the outer periphery of the core member 132.

In this case, when the photosensitive material 14 is sequentially wound around the outer periphery of the core member 132 in a layered manner, the stopper rubber 160 or the stopper rubber 162 is attached to both ends of the photosensitive material 14 in the width direction. To the photosensitive material 1 along the axial direction of the core member 132.
4 is prevented from being displaced. Therefore, the photosensitive material 14 can be more uniformly (effectively) wound around the outer periphery of the core member 132 (the first main body 132A, the second main body 132B, and the third main body 132C).

Further, in the core 130, as shown in FIG. 5, each protrusion 15 of the core member 132 (the first main body 132A, the second main body 132B, and the third main body 132C) is provided.
0 is located at the holding portion 148 of the cam 140 (cam groove 146), and this state is maintained by the springs 152 and 153. Therefore, the first
132A, the second main body 132B, and the third main body 132C are separated from each other, and the approaching movement of each other (that is, to the support shaft 142) is restricted. Therefore, the core 130 (the core member 13)
2) The diameter is not inadvertently reduced.

The photosensitive material 14 has a core 130 (core member 1).
When the winding diameter gradually increases due to the winding in 32), the roller 108 constituting the buffer portion 126 of the endless belt 114 moves (displaces) along the guide groove 122 rightward in FIG. The apparent increase / decrease in the wrapping length of the endless belt 114 due to this operation is absorbed.

As described above, the photosensitive material 14 is placed on the winding core 130.
Since the photosensitive materials 14 having different sizes are mixed, the photosensitive materials 14 can be efficiently collected without waste even if the photosensitive materials 14 of different sizes are mixed. The core 130
The photosensitive material 14 is not curled because it is sandwiched and accumulated between the (core member 132) and the endless belt 114. Further, for this reason, it is not necessary to provide a pressing plate for preventing curling, or to add a fold (corrugation) to the photosensitive material 14 to increase rigidity, so that the structure is simple and the cost is low.

Further, in the integrated device 90, the upper body 9
When the device 2 is rotated around the support shaft 96 with respect to the lower body portion 94 to open the inside of the device, the winding core 13 as shown in FIG.
0 is exposed. Therefore, the photosensitive material 14 accumulated inside can be easily taken out and maintenance can be performed.

Here, in the accumulating device 90, the upper main body 92 supporting the winding core 130, the plurality of rollers 98, and the like.
Since the device is configured as a unit by the lower body portion 94, the present invention is applicable not only to the image recording device 10 but also to other devices. Even such a sheet-like material can be reliably accumulated, and the versatility is greatly expanded.

Further, the core 130 of the accumulating device 90
Is a first main body part 132 in which the core member 132 is divided into three parts.
A, second main body 132B, and third main body 132C
Since the outer diameter can be reduced, the photosensitive material 14 is rolled up and accumulated after winding up the photosensitive material 14.
30 can be easily separated (extracted) from the photosensitive material 14.

That is, after the photosensitive material 14 is wound in layers on the winding core 130, when the winding core 130 is separated (extracted) from the photosensitive material 14 wound in layers,
First, the core 130 is put together with the photosensitive material 14 in the lower main body 94.
Remove from Next, the support shaft 142, that is, the cam 140 is rotated by operating the handle 154. Cam 1
When the shaft 40 is rotated together with the support shaft 142, the inner peripheral wall of the cam groove 146 engages with the projection 150, that is, the projection 150, ie, the first main body 132 A and the second main body 13 of the core member 132.
Each of 2B and the third main body 132C is drawn in a direction radially approaching each other (that is, toward the support shaft 142), and the outer diameter of the core member 132 (core 130) is reduced. (State shown in FIG. 6). As a result, the photosensitive material 14 wound in close contact with the layered material and
Can be easily separated (extracted).

Further, in this case, in the core 130, the surface of the core 132 other than the sticking portion 170 is
Since the surface roughness R _Z is formed to be equal to or greater than 10 μm, the photosensitive material 14
Becomes difficult to adhere to the core member 132. Therefore, the photosensitive material 14 can be easily peeled off from the surface of the core member 132, and the core 130 can be more reliably separated from the photosensitive material 14 that has been closely wound.

In the core 130, the core member 132
In a state where the outer diameter of the photosensitive material 14 is reduced, that is, in order to separate (extract) the core 130 from the photosensitive material 14 after the photosensitive material 14 is wound in a layer around the core 130 (the outer periphery of the core member 132). When the outer diameter of the core 130 is reduced, a plurality of peeling pins are formed from the surface (through hole 156) of the core member 132 (the first main body 132A, the second main body 132B, and the third main body 132C). 166 protrudes outside. Therefore, even if the outer diameter of the core 130 is reduced, the photosensitive material 14 is forced to adhere to the surface of the core 132 even if the outer diameter of the core 130 is reduced.
(The first main body portion 132A, the second main body portion 132B, and the third main body portion 132C) can be separated from the surfaces thereof, and the core 130 can be more reliably separated from the photosensitive material 14 that has been tightly wound. Can be separated.

As described above, the winding core 1 according to the present embodiment
The sheet 30 can not only take up and accumulate a sheet-like material such as the photosensitive material 14, but also can easily separate it from the wound photosensitive material 14 without any labor or labor.

The winding core 130 has a structure in which the winding core member 132 is divided into three along the axial direction and includes a first main body 132A, a second main body 132B, and a third main body 132C. In addition, the sheet material such as the wound photosensitive material 14 can be expanded and contracted to a large degree over the entire circumference, and can be reliably separated from the wound sheet material in close contact with the layer.

Furthermore, the winding core 130 is provided with a handle 154.
To rotate the cam 140, the first main body 132A and the second main body 132
B and the third main body 132C can be moved toward and away from each other in the radial direction to reduce their outer diameters. When the hand is released from the handle 154, the spring 152 and the spring 1
Since the outer diameter can be automatically enlarged by the force of 53, the outer diameter can be enlarged and reduced by an extremely easy operation, and no labor or labor is required.

In the above-described embodiment, the core member 132 is divided into three parts, and is constituted by the first main part 132A, the second main part 132B, and the third main part 132C. However, the present invention is not limited to this.
It is also possible to adopt a configuration in which 32 is divided into four or more.

In the above-described embodiment, the photosensitive material 14 cut into various sizes as a sheet-like material is used.
Has been described, but the present invention is not limited to this, and it is naturally applicable to continuous so-called roll paper.

In the above-described embodiment, an example in which the peeling pin 166 is applied as the peeling member has been described. However, the peeling member is not limited to such a pin-shaped peeling pin 166. For example, a strip-shaped peeling piece or a leaf spring-shaped peeling spring can be used.

Further, in the above-described embodiment,
The core 130 is formed by dividing a core member 132 into three parts along the axial direction, and includes a first main body 132A and a second main body 132
B and a third main body 132C, and the core member 132 (the first main body 132A, the second main body 13
2B and the third main body 132C) are configured such that both ends in the axial direction expand and contract to the same degree (equally), but the present invention is not limited to this. For example, a configuration in which only one end portion in the axial direction of the core member 132 (the first main body portion 132A, the second main body portion 132B, and the third main body portion 132C) is enlarged / reduced (so-called when the core member 132 is reduced). (A conical configuration).

Further, in the above-described embodiment, the first main body 132A, the second main body 132B, and the third main body 132C constituting the core member 132 of the core 130 are mutually connected. Although the structure is divided into three at parallel positions along the axis (support shaft 142) of the core member 132, each of the first main body 132A and the second main body 13
The division positions of 2B and the third main body 132C are not limited to this.

For example, the first main body 132A and the second main body 132 are spirally formed around the periphery of the core member 132.
B and the division position of the third main body 132C may be set, or each first main body may be curved along the periphery of the core member 132 (not parallel to the support shaft 142). 132A, the second main body 132B, and the third main body 1
A 32C division position may be set.

[0100]

As described above, the winding core for winding a sheet material according to the present invention can not only wind and accumulate a sheet-like material such as a photosensitive material or an image receiving material, but also can wind it. There is an excellent effect that the sheet can be easily separated from the subsequent sheet material without any labor and labor, and this can be realized by a simple structure.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a configuration of a winding core according to an embodiment of the present invention.

FIG. 2 is a front view showing a configuration of a winding core according to the embodiment of the present invention.

FIG. 3 is a side view showing a configuration of a winding core according to the embodiment of the present invention.

FIG. 4 is a longitudinal sectional view showing a configuration of a winding core according to the embodiment of the present invention.

FIG. 5 is a sectional view taken along line 5-5 in FIG. 2 showing the configuration of the winding core according to the embodiment of the present invention.

FIG. 6 is a sectional view showing a configuration of a winding core according to the embodiment of the present invention in a reduced diameter state corresponding to FIG. 5;

FIG. 7 is a cross-sectional view taken along the line 7-7 in FIG. 2 showing the configuration of the winding core according to the embodiment of the present invention.

FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 4 showing the configuration of the winding core according to the embodiment of the present invention.

FIG. 9 is a plan view of a third main body showing a configuration of a core attaching portion according to the embodiment of the present invention.

FIG. 10 is an overall configuration diagram of an image recording apparatus to which the winding core according to the embodiment of the present invention is applied.

FIG. 11 is a perspective view showing a configuration of an integrated device to which the winding core according to the embodiment of the present invention is applied.

FIG. 12 is a cross-sectional view illustrating a configuration of an integrated device to which the winding core according to the embodiment of the present invention is applied.

FIG. 13 is a cross-sectional view of the integrated device to which the core according to the embodiment of the present invention is applied, in an open state of the device.

[Explanation of symbols]

 Reference Signs List 14 photosensitive material (sheet material) 130 core 132 core member 132A first main body 132B second main body 132C third main body 134 guide rail 140 cam (outer diameter expansion / contraction mechanism) 142 support shaft 146 cam groove 148 Holding part 150 Projection (outer diameter expansion / contraction mechanism) 152 Spring 154 Handle 160 Stopper rubber (stopper member) 162 Stopper rubber (stopper member) 164 Spacer 166 Peeling pin (peeling member) 170 Adhering part

Claims (8)

[Claims] 1. A sheet-like material which is formed in a substantially cylindrical shape as a whole, is divided into three or more along an axial direction, and is capable of coming and going in a radial direction with respect to each other. A core member, provided inside the core member, an outer diameter expansion / contraction mechanism that expands / contracts the outer diameter of the core member by radially contacting and separating the three or more divided main body parts from each other, A winding core for winding a sheet material provided with. 2. The apparatus according to claim 1, further comprising a plurality of peeling members provided inside the core member and projecting outward from a surface of the main body when the outer diameter of the core member is reduced. The core for winding a sheet material according to claim 1. 3. The sheet attached to the surface of the main body corresponding to the widthwise edge of the sheet-like material wound around the outer periphery of the core member, and the sheet along the axial direction of the core member. The winding core for winding a sheet material according to claim 1 or 2, further comprising a stopper member for preventing a winding deviation of the material. 4. The winding core for winding a sheet material according to claim 3, wherein two or more sets of a pair of stopper pieces are provided as said stopper members, and are arranged so as not to be located on the same line with each other. 5. A sticker provided on the surface of the main body corresponding to a leading portion of a sheet-like material wound around the outer periphery of the core member, wherein the leading portion of the sheet-like material is attached first. 2. An attaching part, comprising:
A winding core for winding a sheet material according to claim 4. 6. The core for winding a sheet material according to claim 5, wherein a width dimension of the attaching portion along a circumferential direction of the member is set to 1 mm to 40 mm. 7. A phase plate for detecting a rotational position is provided on the core member, and by detecting the position of the phase plate, the rotation of the core member and the intrusion of the sheet-like material are synchronized. The winding core for winding a sheet material according to claim 5, wherein a leading portion of the sheet-like material is first stuck to the sticking portion. 8. A surface roughness R
8. The method according to claim 5, wherein _Z = 0.1 μm or less, and the surface of the main body other than the attachment portion is formed to have a surface roughness R _Z = 10 μ or more. A core for winding the sheet material described in the above.