JP3721966B2 - Reel for photosensitive material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a photosensitive material reel on which a photosensitive material such as a photographic paper wound in a roll shape can be set.
[0002]
[Prior art]
In general, a photographic processing apparatus equipped with this type of reel comprises a paper magazine loading section, a transport section for transporting photographic paper, and a printing processing section for printing an image on the photographic paper. Set the printed paper (hereinafter referred to as “printing paper roll”) on a reel, and load this reel in the paper magazine together with the printing paper roll. An image is printed on the photosensitive surface by the printing processing unit while the photographic paper pulled out from the sheet is conveyed by the conveyance unit.
[0003]
On the other hand, the reel on which the photographic paper roll is set receives a pair of left and right shafts that receive a support shaft that supports the photographic paper roll and both ends in the width direction of the photographic paper roll supported by the support shaft, and regulates the support position of the photographic paper roll with respect to the support shaft. An annular groove corresponding to the width dimension of a plurality of types of photographic paper windings to be set is formed on the outer peripheral surface of both ends in the longitudinal direction of the support shaft, and the guide body has a support An adjustment plate that can be fitted into the annular groove of the shaft is mounted.
[0004]
In the reel described above, the first guide body is adjusted by fitting the adjustment plate of the first guide body into a predetermined annular groove on one end side in the length direction of the support shaft corresponding to the width of the photographic paper winding to be set. Is attached to one end in the length direction of the support shaft, and a photographic paper roll is inserted into the support shaft from the other end in the length direction of the support shaft. After that, the adjustment plate of the second guide body is attached to the support shaft. The second guide body is attached to the other end in the length direction of the support shaft by fitting it into a predetermined annular groove on the other end in the length direction of the support shaft that matches the width of the supported photographic paper roll. Thus, both ends of the photographic paper roll in the width direction are received, and the photographic paper roll is held at a predetermined position.
[0005]
[Problems to be solved by the invention]
By the way, the photographic paper rolls set on the reels described above have variations in width dimensions due to, for example, differences in manufacturers and manufacturing times, and molding errors occur even in the annular groove formed on the support shaft. Therefore, in the conventional reel, the fitting groove is formed at a position slightly wider than the specified width dimension of the photographic paper winding in consideration of the variation in the width dimension of the photographic paper winding and the forming error of the annular groove.
[0006]
Therefore, in conventional reels, when the guide body is set on the support shaft that supports the photographic paper roll, a gap is likely to be generated between the photographic paper roll and the guide body. The problem of meandering on the transport path of the processing apparatus occurs.
[0007]
The present invention was developed in view of the above circumstances, and the object is to support the photosensitive material by the left and right guide bodies without being affected by variations in the width dimension of the photosensitive material such as photographic paper. It is an object of the present invention to provide a photosensitive material reel that can be reliably set at a predetermined position with respect to an axis.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the invention described in claim 1 is provided with a support shaft for supporting a photosensitive material wound in a roll shape, and a pair of guide bodies detachably attached to the support shaft. In the photosensitive material reel in which the photosensitive material reel is configured to receive both ends in the width direction of the photosensitive material by the body and regulate the support position of the photosensitive material with respect to the support shaft, between the support shaft and at least one of the pair of guide bodies Is provided with a position adjustment mechanism that enables adjustment of the mounting position of the guide body with respect to the support shaft by screwing the guide body with respect to the support shaft, and this position adjustment mechanism is a guide portion formed in a spiral shape on the outer peripheral surface of the support shaft. And an engaging portion that is provided on the guide body and engageable with the guide portion, and an operating portion that is provided on the guide body and engages and disengages the engaging portion with respect to the guide portion by operation. Have It is characterized in.
[0009]
According to a second aspect of the present invention, in the photosensitive material reel according to the first aspect, the guide body is allowed to rotate between the support shaft and the guide body in the screwing direction, and the guide body is retracted. A ratchet mechanism is provided that makes it impossible to rotate to the right.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 schematically shows a photographic processing apparatus on which a reel of the present invention is mounted. This photographic processing apparatus prints an image or the like on a photographic paper as a photographic photosensitive material on the apparatus main body 1. A printing processing unit 1a to be performed; a development processing unit 1b that develops the photographic paper printed by the printing processing unit 1a; a drying processing unit 1c that dries the photographic paper developed by the development processing unit 1b; And a print discharge section 1d for discharging the photographic paper that has been dried.
[0011]
The printing processing unit 1a is provided with a monitor 11, a light source lamp 12, an exposure unit 13, and two paper magazines 2 on which a reel 3 according to the present invention is mounted.
[0012]
The exposure unit 13 includes a line-shaped exposure head 14, and a digital image processed based on the digital image data is digitally exposed to the photographic paper being conveyed by the exposure head 14.
[0013]
As a digital exposure method, a PLZT shutter method, a laser beam method, a liquid crystal shutter method, and a fluorescent beam method are known, and any method can be adopted according to specifications.
[0014]
The development processing unit 1b includes a processing tank 15, and the inside of the processing tank 15 is divided into several parts by a partition plate, and various kinds such as a developing solution, a bleach-fixing solution, and a stabilizing solution are included in each of the compartments. Treatment liquid is stored.
[0015]
The drying processing unit 1c includes a heater 16 so that the photographic paper is appropriately dried by the heater 16 while the photographic paper is conveyed. The photographic paper dried by the drying processing unit 1c is sent to the print discharge unit 1d and discharged from the outlet to the discharge tray 17.
[0016]
Next, the paper magazine 2 on which the reel 3 according to the present invention is mounted will be described.
[0017]
The paper magazine 2 includes a magazine main body 20 formed in a substantially rectangular parallelepiped. The magazine main body 20 is divided into two parts, a first divided body 20a and a second divided body 20b, and the two divided bodies 20a and 20b. Are joined at one end via a hinge, and the two split bodies 20a and 20b can be opened and closed with the hinge as a fulcrum.
[0018]
Inside the magazine main body 20, the photographic paper roll P wound in a roll shape is stored in a state supported by the reel 3 according to the present invention, and one end of the photographic paper roll P is attached to the magazine main body 20. The paper can be pulled out from the paper carry-out port 21.
[0019]
Next, the reel 3 mounted in the paper magazine 2 will be described in detail.
[0020]
In the figure, a reel denoted by reference numeral 3 includes a support shaft 4 through which the photographic paper roll P is inserted and supported, a base-side first guide body 5 that is attached in advance to a predetermined position on one end side in the length direction of the support shaft 4, and a support shaft. 4 is provided with a detachable second guide body 6 attached to a predetermined position on the other end side in the longitudinal direction of the support shaft 4 after the photographic paper roll P is supported. Both ends of the photographic paper roll P inserted and supported in the width direction are received, and the support position of the photographic paper roll P with respect to the support shaft 4 is regulated.
[0021]
A plurality of fitting grooves 41 for assembling the first guide body 5 are formed in the circumferential direction on the outer circumferential surface on one end side in the length direction of the support shaft 4.
[0022]
In the embodiment, when the width of the photographic paper roll P is set to 114 mm, 117 mm, and 120 mm, and 127 mm and 130 mm in the fitting groove 41, the first guide body is set. In the fitting groove used to attach 5 to a predetermined position, in the former three types, the positions are shifted by 57 mm, 58.5 mm, and 60 mm from the center of the support shaft 4 in the axial direction outward. In the latter two types, they must be provided at positions shifted by 63.5 mm and 65 mm, respectively, but these grooves cannot be provided adjacent to each other in relation to the groove width.
[0023]
Therefore, in the embodiment shown in the figure, as shown in FIG. 11, the fitting groove 41 a corresponding to the 117 mm photographic paper winding is provided on the support shaft 4 in the fitting groove corresponding to the former three types of photographic paper winding P. In the circumferential surface 90 degrees in the circumferential direction and one set at a symmetrical position around the axis of the support shaft 4, and at a position displaced 90 degrees circumferentially with respect to the 117 mm fitting groove 41a, The fitting groove 41b corresponding to the 114 mm photographic paper roll P and the fitting groove 41c corresponding to the 120 mm photographic paper roll P are each 90 degrees in the circumferential direction and at symmetrical positions around the axis of the support shaft 4. One set is formed so that the 114 mm fitting groove 41 b and the 120 mm fitting groove 41 c are not opposed to the 117 mm fitting groove 41 a in the axial direction.
[0024]
Also, as shown in FIG. 11, a fitting groove 41 d corresponding to a 127 mm photographic paper winding is fitted in the circumferential direction on the outer peripheral surface of the support shaft 4 in the fitting groove corresponding to the latter two types of photographic paper winding P. One set is formed at a symmetrical position around the axis of the support shaft 4 at a time, and the 130 mm photographic paper roll P is placed at a position displaced in the circumferential direction by 90 degrees with respect to the fitting groove 41d for 127 mm. A pair of corresponding fitting grooves 41e is formed at 90 degrees in the circumferential direction and symmetrically with respect to the axis of the support shaft 4, and a fitting groove for 130 mm with respect to the fitting groove 41d for 127 mm. 41e is made not to oppose to an axial direction.
[0025]
Further, as shown in FIG. 5, eight ratchet teeth 74 that constitute a ratchet mechanism 7 by ratchet claws 71, 72, and 73, which will be described later, are provided on the outer peripheral surface on the other end side in the longitudinal direction of the support shaft 4. A guide groove 42 forming a position adjusting mechanism N for assembling the second guide body 6 so as to be freely changeable in position is spirally engraved in the circumferential direction.
[0026]
The ratchet mechanism 7 described above is configured to prevent the second guide body 6 from rotating in the direction in which the second guide body 6 is screwed out.
[0027]
The guide groove 42 described above can be used up to the width of the maximum width of the photographic paper roll P that can be used in the photographic processing apparatus (up to 305 mm wide photographic paper roll P in the photographic processing apparatus of the embodiment shown in the figure). However, the engagement piece to be described later when the second guide plate 6 inserted through the support shaft 4 is applied to the end surface of the photographic paper roll P only when the support shaft 4 supports those that are within the standards. The guide groove 42 is formed to a position where any of the 71c, 72c, 73c and the auxiliary engagement piece 71d is engaged, and the second guide body 6 can be attached to the support shaft 4, and the print is wider than the standard width dimension. In the embodiment shown in the figure, when the photographic paper roll P of 305.5 mm or more is supported on the support shaft 4, the engagement piece positioned at least at the rearmost among the engagement pieces 71c, 72c, 73c. 71c and auxiliary engagement piece 71d are shown in FIG. Come to a position that is not formed of the guide grooves 42 in Suyo, is set to be disabled mounting the second guide member 6 to the support shaft 4.
[0028]
The first guide body 5 includes a disk-shaped guide plate 51, a pair of guide stop plates 52, and a contact plate 53. The guide plate 51 has a through hole 54 for loosely inserting the support shaft 4. An insertion hole 55 for the screw 58 is formed, and a pair of guide stopper plates 52 are mounted on the outer surface of the guide plate 51 at symmetrical positions with the center of the guide plate 51 interposed therebetween.
[0029]
Each guide stop plate 52 is formed with an arcuate fitting protrusion 56 and a long hole 57 that can be fitted in the fitting groove 41. As shown in FIG. 6, the guide stopper plate 52 is overlapped with the outer surface of the first guide body 5, and the screw insertion hole provided in the first guide body 5 from the inner surface side of the first guide body 5. The screw 58 is inserted into the long hole 57 provided in the guide stop plate 52 and the guide stop plate 52, and the insertion end is screwed into the screw hole of the contact plate 53 applied to the outer side surface of the guide stop plate 52. While fixing the stop plate 52 to the guide plate 51 and loosening the screw 58, the guide stop plate 52 can be slid in the radial direction of the first guide body 5, and the fitting protrusion 56 penetrates the guide plate 51. It is made to go out and with respect to the hole 54.
[0030]
In addition, the fitting protrusion piece 56 of the guide stopper plate 52 extends over 90 degrees in the circumferential direction.
[0031]
The second guide body 6 includes a disc-shaped guide plate 61 provided with a through hole 61a for loosely inserting the support shaft 4 in the center, and a ratchet which will be described later by being assembled to the outer surface of the guide plate 61. A ring-shaped casing 62 in which the claws 71, 72, and 73 are housed, and an operation portion 63 that is rotatably attached to the casing 62 are provided.
[0032]
As shown in FIG. 8, the casing 62 includes a ring-shaped side wall 62a, and a cylindrical inner peripheral wall 62b and a cylindrical outer peripheral wall 62c provided on the inner periphery and the outer periphery of the side wall 62a, respectively. The ratchet pawls 71, 72, 73 are provided so as to be swingable with a pivot 62d provided on the inner surface of the side wall 62a as a fulcrum, and a return is provided between the ratchet pawls 71, 72, 73 and the cylindrical outer peripheral wall 62c. A direction in which the claw portions 71a, 72a, 73a of the ratchet claws 71, 72, 73 project out of the casing 62 from the opening 62f provided in the cylindrical inner peripheral wall 62b by the spring force of the spring 62e through the spring 62e. It is trying to be energized.
[0033]
The operation unit 63 constitutes the position adjusting mechanism N described above. As shown in FIGS. 7 and 8, the operation unit 63 includes a ring-shaped side wall 63 a that faces the outer surface of the side wall 62 a of the casing 62, and a casing 62. A cylindrical guide wall 63b is provided along the outer peripheral surface of the cylindrical outer peripheral wall 62c, and a pair of operation rods 63c extending radially outward from the outer peripheral surface of the cylindrical guide wall 63b.
[0034]
As shown in FIG. 7, the side wall 63a is formed with a guide hole 63d that engages with guide pins 71b, 72b, and 73b protruding from the side surfaces of the ratchet claws 71, 72, and 73. With the rotation operation with respect to 62, the claw portions 71a, 72a, 73a of the ratchet claws 71, 72, 73 are moved into or out of the casing 62 by guiding the guide pins 71b, 72b, 73b through the guide holes 63d. I have to.
[0035]
In the embodiment shown in the figure, as shown in FIG. 8, a long hole 62g is formed in the side wall 62a of the casing 62, and a boss that fits in the long hole 62g is formed on the inner side surface of the side wall 63a of the operation portion 63. 63e is projected, a coil spring 63f is stretched between the boss 63e and the side wall 62a of the casing 62, and the operating portion 63 is rotated with respect to the casing 62 by the spring force of the spring 63f. The claw portions 71a, 72a, 73a of the 72, 73 are projected from the casing 62.
[0036]
In the figure, reference numeral 62h denotes guide holes of guide pins 71b, 72b, 73b formed in the side wall 62a of the casing 62.
[0037]
In addition, engaging pieces 71c, 72c, 73c as engaging portions that can be engaged with the guide grooves 42 protrude from the tips of the claw portions 71a, 72a, 73a of the ratchet claws 71, 72, 73. The engaging pieces 71c, 72c, 73c can be fitted in the guide groove 42 for one pitch, in other words, in one circumference of the guide groove 42.
[0038]
In addition to the engagement piece 71c described above, the ratchet pawl 71 has a guide groove 42 at a position shifted backward by one pitch from a position where the engagement piece 71c is fitted in the guide groove 42 as shown in FIG. An auxiliary engagement piece 71d that can be engaged with is further provided.
[0039]
Next, how to use the above reels will be described.
[0040]
First, in accordance with the width dimension of the photographic paper roll P to be set, the fitting guide piece 56 of the guide stopper plate 52 constituting the first guide body 5 is fitted into the predetermined fitting groove 41, thereby the first guide body 5. Is attached to the support shaft 4, and when, for example, a 117 mm wide photographic paper roll P is set, the fitting protrusion 56 of the guide stopper plate 52 is fitted into the 117 mm fitting groove 41a. When the 120 mm wide photographic paper roll P is set, the first guide body 5 is rotated 90 degrees in the circumferential direction with respect to the support shaft 4 from the state where the 117 mm wide photographic paper roll P is set. Thus, the fitting protrusion 56 of the guide stopper 52 is fitted into the fitting groove 41c for 120 mm.
[0041]
Subsequently, after the photographic paper roll P is inserted and supported by the support shaft 4, the second guide body 6 is attached to the other end in the length direction of the support shaft 4.
[0042]
The second guide body 6 is attached to the support shaft 4 by first rotating the operating portion 63 with respect to the casing 62 via the operating rod 63c to resist the ratchet pawls 71, 72, and 73 against the return spring 62e. By swinging in the direction, the claw portions 71a, 72a, 73a are retracted into the casing 62, and the second guide body 6 is fitted to the other longitudinal end portion of the support shaft 4 while maintaining this state. And close to the end face of the photographic paper roll P.
[0043]
Then, by releasing the hand from the operating rod 63c, the operating portion 63 is rotated in the reverse direction by the spring force of the spring 63f, and the engaging pieces 71c, 72c, 73c and the auxiliary engaging piece 71d are engaged with the guide groove 42. After that, the second guide body 6 is rotated with respect to the support shaft 4, and the second guide body 6 is screwed until the inner surface of the guide plate 61 contacts the end surface of the photographic paper roll P. .
[0044]
Thus, since the second guide body 6 is prevented from rotating in the direction of screwing with respect to the support shaft 4 by the action of the ratchet mechanism 7, both ends in the width direction of the photographic paper roll P are both guide bodies. It is securely received at 5 and 6 and is held without being inadvertently rattled in the axial direction with respect to the support shaft 4.
[0045]
Therefore, in the above reels, it is not necessary to separately provide a restriction mechanism for restricting the photographic paper roll P from inadvertently rotating with respect to the support shaft 4.
[0046]
In the second guide body 6 described above, the operation portion 63 can be operated to instantaneously move the support shaft 4 to a desired position. For example, even if the width of the photographic paper roll P supported on the support shaft 4 is narrow. The second guide body 6 can be set immediately to the vicinity of the photographic paper roll P, and the workability is good.
[0047]
By the way, when the maximum width of the photographic paper roll P that can be used in the photo processing apparatus is supported on the support shaft 4, the photographic paper roll P has a width that is wider than the standard due to a manufacturing error or the like. Even if the outer peripheral part is displaced in the axial direction with respect to the axial center part and becomes wider than the standard width by, for example, conveyance, at least the rearmost of the engagement pieces 71c, 72c, 73c. As shown in FIG. 12, the engaging piece 73c and the auxiliary engaging piece 71d located at the position come to a position where the guide groove 42 is not formed, and in addition to the engaging piece 73c and the auxiliary engaging piece 71d, the guide groove Since the engagement pieces 71 c and 72 c positioned on the 42 do not engage with the guide groove 42, the second guide body 6 is not attached to the support shaft 4.
[0048]
Therefore, it can be seen that the photographic paper roll P supported on the support shaft 4 is of a non-standard wide width, and the wide non-standard photographic paper roll P is not inadvertently set on the reel. When setting a large photographic paper roll P, it is possible to prevent the operator from erroneously attaching the second guide body 6 to the support shaft 4.
[0049]
On the other hand, when the photographic paper roll P having the maximum width that can be used in the photo processing apparatus is supported on the support shaft 4, if the photographic paper roll P has a width conforming to the standard, the engagement piece 71c. 72 c and 73 c and the auxiliary engagement piece 71 d are engaged with the guide groove 42, and the second guide body 6 can be immediately attached to the support shaft 4.
[0050]
In the above embodiment, only the second guide body 6 is provided with the position adjusting mechanism N that allows the mounting position of the guide body 6 to the support shaft 4 to be adjusted by screwing the second guide body 6 to the support shaft 4. However, the present invention is not limited to this, and the first position adjustment mechanism N may be provided in the first guide body 5 as well.
[0051]
In the above embodiment, the guide groove 42 is formed as the spiral guide portion constituting the position adjusting mechanism. However, the present invention is not limited to this, and the spiral guide protrusion protruding from the outer peripheral surface of the support shaft 4 is not limited thereto. You may form from.
[0052]
In the above embodiment, the present invention is applied to the reel on which the photographic paper roll P is set. However, the present invention may be applied to a reel on which a film wound in a roll shape is set.
[0053]
【The invention's effect】
As described above, according to the first aspect of the present invention, a support shaft that supports the photosensitive material wound in a roll shape and a pair of guide bodies that can be attached to and detached from the support shaft are provided. In the photosensitive material reel that receives both ends in the width direction of the material and regulates the support position of the photosensitive material with respect to the support shaft, the guide member is interposed between at least one of the pair of guide members and the support shaft. A position adjustment mechanism is provided that enables the attachment position of the guide body to the support shaft to be adjusted by screwing to the support shaft. The position adjustment mechanism includes a guide portion formed in a spiral shape on the outer peripheral surface of the support shaft, and the guide An engagement portion that is provided on the body and engageable with the guide portion; and an operation portion that is provided on the guide body and that engages and disengages the engagement portion with respect to the guide portion by an operation. By simply screwing the threaded body with respect to the support shaft, both ends in the width direction of the photographic paper roll supported by the support shaft are securely received by the both guide bodies, and the photographic paper roll is inadvertently loosened in the axial direction with respect to the support shaft. The guide body can be moved immediately to a predetermined position of the support shaft by preventing the engagement portion from engaging with the guide portion by operating the operation portion. Then, by operating the operating portion at that position, the engaging portion can be engaged with the guide portion, and the guide body can be screwed by turning from that position, so that workability is improved.
[0054]
According to the second aspect of the present invention, in the photosensitive material reel according to the first aspect, the guide body is allowed to rotate in the screwing direction between the support shaft and the guide body, and the guide body By providing a ratchet mechanism that disables rotation in the retraction direction, in addition to the effect of the invention according to claim 1 or 2, the guide body that is screwed and applied to the end face of the photosensitive material is inadvertent. It is possible to reliably prevent separation from the photosensitive material.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a photographic processing apparatus equipped with a reel according to the present invention.
FIG. 2 is a schematic front view of a reel according to the present invention.
FIG. 3 is an enlarged perspective view of the main part of the same.
FIG. 4 is a front view of a main part of a support shaft.
FIG. 5 is an enlarged side view of a support shaft.
FIG. 6 is an outer side view of the first guide body.
FIG. 7 is an outer side view of a second guide body.
FIG. 8 is an inner side view of the second guide body with the guide plate removed.
9 is a perspective view of a ratchet claw 71. FIG.
10 is a perspective view of a ratchet pawl 72. FIG.
FIG. 11 is an explanatory view showing a main part of a support shaft in an expanded manner.
FIG. 12 is an explanatory view showing a main part of a support shaft in an expanded manner.
FIG. 13 is an explanatory view showing a main part of a support shaft in an expanded manner.
[Explanation of symbols]
3 reel 4 support shaft 42 guide groove (guide part)
5 1st guide body 6 2nd guide body 63 Operation part 7 Ratchet mechanism 71c * 72c * 73c Engagement piece (engagement part)
N Position adjustment mechanism P Photographic paper roll

Claims (2)

A support shaft that supports a photosensitive material wound in a roll shape and a pair of guide bodies that can be attached to and detached from the support shaft. mounting of the light-sensitive material reel which is adapted to regulate the supporting position, is between at least one said support shaft of the pair of guide members, the guide body with respect to the support shaft by screwing with respect to the support shaft of the guide body A position adjustment mechanism that can adjust the position is provided, and the position adjustment mechanism is provided on the outer peripheral surface of the support shaft in a spiral shape, and is provided on the guide body so as to be engageable with the guide portion. A photosensitive material reel comprising: an engagement portion; and an operation portion provided on the guide body, wherein the operation portion engages and disengages the engagement portion with respect to the guide portion .   The photosensitive member according to claim 1, wherein a ratchet mechanism is provided between the support shaft and the guide body, the ratchet mechanism allowing rotation of the guide body in the screwing direction and disabling rotation of the guide body in the screwing direction. Material reel.

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