JP3613369B2 - Guide mechanism for automatic development processor - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a guide mechanism for an automatic development processing apparatus having a guide portion for transporting a photosensitive material along a transport path.
[0002]
[Prior art]
In the automatic development processing apparatus, for example, each tank such as a developing tank, a bleaching tank, and a fixing tank (hereinafter collectively referred to as a processing tank) is provided in order to sequentially perform the developing process, and a developer, a bleaching liquid, and a fixing tank are respectively provided. Liquids for development processing (hereinafter collectively referred to as processing solutions) such as liquids and stabilizers are stored. A photosensitive material such as a film is developed by passing through each processing tank in sequence, and then dried and discharged by a drying device. The photosensitive material is conveyed across a plurality of processing tanks by a structure generally called a rack having edge guides that guide both edge portions such as films.
[0003]
[Problems to be solved by the invention]
Since the width of the edge guide of the rack of the conventional automatic developing apparatus is set to the width of a general photosensitive material such as a film, there is no restriction in the width direction when trying to process a photosensitive material having a width smaller than this. Therefore, there is a problem in that the meandering of the film is severe and the film is bent and scratched.
As one method for solving this problem, there is a method of adjusting the width of the edge guide in accordance with the width of the photosensitive material as disclosed in, for example, Japanese Patent Publication No. 6-64326.
[0004]
However, this method requires a complicated gear mechanism because it is necessary to accurately adjust the widths of many edge guides provided in one rack at the same time. However, for example, when the light-sensitive material is a photographic film, in practice, a small number of types of films are generally targeted for development processing, and in fact, there is a rack having a width capable of processing these few films. It only has to be. Therefore, the conventional automatic development processing apparatus capable of processing a plurality of photosensitive materials has room for improvement in terms of simplification of the structure, effective use of space, cost reduction, and the like. SUMMARY OF THE INVENTION An object of the present invention is to provide a guide for an automatic development processing apparatus having a guide portion capable of guiding a plurality of photosensitive materials along one transport path while taking a simple structure in consideration of the above problems. To provide a mechanism.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the guide portion of the automatic developing apparatus according to the present invention includes at least a first transported body having a first width and a second target having a second width smaller than the first width. Two types of transported bodies of the transport body can be guided, and includes first guide means for guiding the first transported body and second guide means for guiding the second transported body,
The first guide means functions as a width direction guide of the first transported body, and the second guide means contacts the first transported body when the first transported body passes. A contact portion, a second contact portion forming a contact surface as a width direction guide of the second transported body , and the first contact portion touching the first transported body said second abutment Ru is avoiding interference with respect to the abutment of the first object to be transferred is displaced from the transport path of the first object to be transferred in order to allow passage of the first object to be transferred by And an elastic part that is elastically deformed.
[0006]
With such a configuration of the guide portion, when a first transported body having a set first width passes through one transport path, the width direction of the first transported body functions as a width direction guide. Guided by the guiding means,
The second guiding means for guiding the second conveyed body having the second width smaller than the first width is elastically deformed by contact with the first conveyed body of the first contacting portion , By displacing from the transport path of the first transported body so as not to get in the way, interference between the contact surface of the second contact portion that functions as a width direction guide of the second transported body and the first transported body is avoided. The Moreover, when the 2nd to-be-conveyed body which has 2nd width | variety passes, the width direction of a 2nd to-be-conveyed body is guided by the contact surface of the 2nd contact part of a 2nd guide means.
[0007]
Therefore, an automatic development processing apparatus having a guide portion for guiding a photosensitive material having a different structure and a different width and a transported body such as a film leader is provided by the guide portion having the above-described structure. It can be done.
In a preferred embodiment of the present invention, the elastic part is formed to extend in a first direction corresponding to the traveling direction of the first and second transported bodies, and the first contact part is formed of the elastic part. It is desirable that the first contact portion is provided at a free end and is displaced in a second direction corresponding to a vertical direction of a surface of the first transported body when the first contact portion contacts the first transported body.
With such a configuration, the first contact portion can efficiently elastically deform the elastic portion by contact with the first transported body, and the second contact portion can be first transported. It can move so as not to obstruct the passage of the body.
[0008]
In a preferred embodiment of the present invention, the second contact portion extends in parallel with the transport direction of the first and second transported bodies and faces each other, and is substantially the same as the second width. It is desirable to form it as a pair of contact surfaces provided at intervals.
By comprising in this way, when conveying a 2nd to-be-conveyed object by a pair of contact surface formed as a mutually opposing parallel surface, this can be reliably guided by the opposing surface.
Furthermore, in a preferred embodiment of the present invention, it is desirable that the first contact portion is formed as a pair of edge portions that are respectively provided continuously on the pair of contact surfaces and face the transport path. By doing in this way, it is a simple shape, the 1st contact part which has a pair of edge part contact | abutted with respect to a 1st to-be-conveyed body, and a pair of contact surface which has a guide effect with respect to a 2nd to-be-conveyed body The 2nd contact part which has can be provided.
Other features and advantages of the present invention will become apparent from the following description of embodiments with reference to the drawings.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an automatic development processing apparatus according to the present invention will be described with reference to the drawings.
In this embodiment, an automatic development processing apparatus that is set up to develop and process a conventional type film generally called 135 type, particularly for processing without a reader, will be described as an example.
As shown in FIG. 1, the automatic development processing apparatus 100 includes a film loading unit 2, a film developing unit 3 that develops the film 1 fed out from the film loading unit 2, and a drying heater for the film 1 after the development processing. A film drying section 4 that is warmed by the warm air sent out by the drying fan 10, a discharge section 5 that discharges the dried film 1, and a film receiving section 6 that temporarily stores the discharged film 1. Is provided.
[0010]
The film 1 loaded in the film loading unit 2 is fed into the film developing unit 3, and an optical sensor 7 is provided near the entrance of the film developing unit 3. From the signal of the optical sensor 7 and the film conveyance speed, The length of the film that is carried into the film developing unit 3 and developed can be obtained.
The film developing unit 3 includes seven processing tanks 21 to 27 each of which is separately filled with a developing solution such as a developing solution, a bleaching solution, a fixing solution, and a stabilizing solution in order to sequentially perform developing processes such as developing, bleaching, and fixing. Rack means 11 to 17 having different lengths for transporting the film 1 in the development processing area formed and the development section processing area are provided. The seven processing tanks 21 to 27 are arranged in the order of the conveyance direction of the film 1, and the first deep ridge is the developer processing tank 21, and the next is the bleaching liquid processing tank 22. Two are the fixing baths 23 and 24, the next two are the washing baths 25 and 26, and the last one is the stabilizing bath 27. Each treatment tank has substantially the same structure even if the depth is different.
[0011]
FIG. 2 shows a part of the racks 11 to 17 (the racks 11 to 14) provided with the guide portion according to the present invention. When the 135 type film 1 as an example of the first transported body is loaded into the film loading device 2, the film 1 is guided to the developer processing tank 21 by a pair of upper and lower introduction rollers 31. Next, the film 1 is drawn downward while being sandwiched between the straight roller 33 and the pressure roller 32 that are driven to rotate counterclockwise in FIG. 2, and the next straight roller is guided by the first guide means described in detail later. 35 and the conveying roller 34. In this way, the film 1 is guided by the rollers one after another, and is turned upward by being guided by the turn roller 39 and the transport roller 38 at the lower end of the rack 11, and is transported to the upper end of the developer processing tank 21. Then, it passes through the upper turn rack 18 having three guide rollers 33 and is conveyed toward the next processing tank 22. The rack 12 of the next processing tank 22 is provided with a straight roller 85, a pressure roller 84 on both sides thereof, a turn roller 87, and a pair of transport rollers 86, whereby the film 1 is transported along the transport path, It is processed.
[0012]
At this time, for example, the straight roller 33 is driven and rotated counterclockwise in FIG. 2, and in FIG. 2, the pressure roller located on the left side with respect to the portion conveyed downward in the film 1. 32 is held in a sandwiched manner, and the portion conveyed in the upward direction of the film 1 is contacted in a shape sandwiched by the pressure roller 32 disposed on the right side, and is conveyed downward in the film 1 The part to be transported and the part transported upward are transported at the same speed.
Next, the rack 11 of the developing solution processing tank 21 is provided with first and second rack frames 51 and 52 as shown in FIG. Each of these rack frames 51 and 52 has a plate-like main body, and these are arranged so as to be parallel to each other, and a transport path for a transported body is formed. These rack frames 51 and 52 are fixed to each other by a connecting column 11a (see FIG. 2) extending between them. The width Wa shown in FIG. 3 is the width of the transport path, which is set to be substantially the same as or slightly wider than the 135 type film width.
[0013]
Guide grooves 51 a and 51 b are integrally formed on the surface of the first rack frame 51 facing the second rack frame 52. These guide grooves and the guide grooves 52a and 52b formed on the surface of the second rack frame 52 facing the first rack frame 51 have basically the same shape, and these guide grooves 51a and 51b. , 52a, 52b constitute first guiding means, which are provided along a path along which the film 1 is conveyed. The guide grooves 51a and 52a are guides for guiding the film conveyed downward, and the guide grooves 51b and 52b are guides for guiding the film conveyed upward. Further, the distance between the guide groove 51a of the first rack frame 51 and the corresponding groove of the guide groove 52a of the second rack frame 52 is the same as the width of the 135 type film 1 as the first transported body. Or it is set to a slightly larger interval. Further, the cross-sections of these guide grooves are formed to be V-shaped as shown in FIG. 3, and when the film 1 to be conveyed is 135 type, it has a component perpendicular to the surface of the film 1 Even if the pressure acts, a reaction force acts by the guide groove, and the film 1 is transported without being separated from the transport path.
[0014]
A gear mechanism (not shown) for driving the rollers is attached to the rack frame 51. The gear mechanism is driven by a motor, and this driving force is transmitted to all rollers attached to the rack 11 by a plurality of gears. These rack frames are preferably made of resin.
[0015]
Next, with reference to FIG. 2 and subsequent figures, a second guiding means for guiding an IX240 type film as an example of the second transported body will be described. By mounting the second guide means, a narrow second type transported object can be used by using the racks 11 to 17 that form a transport path having a width (35 mm) for a conventional 135 type film. It was possible to transport while guiding in sliding contact.
When transporting an object to be transported that is narrower than the set width of the transport path of the racks 11 to 17 (24 mm for the IX240 type) as in the IX240 type, a leader having the same width as the 135 type width (35 mm) that is the set width The part is attached to the tip of the transported body, and the second transported body is pulled and transported by the leader section. This leader portion also has a positioning function in the width direction of the leading end of the IX240 type narrow film.
[0016]
In FIG. 2, the arrangement | positioning state of the 2nd guide means 40, 43, 44, 45 attached to the rack 11-17 at the important point along the conveyance path of the film 1 is shown. As apparent from the figure, basically, for example, along the first guide means, between two adjacent straight rollers such as straight rollers indicated by 33 and 35, or between the turn roller 39 and the straight roller 37, for example. Second guide means 44 is arranged. Further, the second guide means 44 is also arranged between the straight roller 85 and the turn roller 87 of the rack 12. The same applies to the racks 13 to 17.
[0017]
The specific structure of these second guiding means is shown in FIG. As the second guide means, four types indicated by the reference numbers 40, 43, 44, and 45 are used. However, the second guide means 40, 43, and 44 are basically the same in structure. Here, the structure of the second guide means 40 is shown. In this specification, in FIG. 5, the traveling direction of the film 1 that is the transported body is referred to as a first direction A, and the direction that is perpendicular to the first direction and parallel to the surface of the transported body 1 is the second. A direction B is called, and a direction perpendicular to both the first direction A and the second direction B is called a third direction C.
[0018]
The first member 41 that is one side of the second guide means 40 has a base portion 41a that is attached to the first rack frame 51 of the rack 11 by screws 41b, for example. An extending portion 41 c is provided extending from the base portion 41 a along the third direction C and in the direction toward the film 1. An elastic portion 41d is attached to the end portion of the extending portion 41c facing the film 1. The elastic portion 41d has a plane parallel to the plane defined by the first direction A and the second direction B, that is, a plane parallel to the plane of the film 1, and is easily elastically deformed along the third direction C. It has become. Further, due to such a shape, it is difficult to elastically deform in the second direction. That is, the elastic part 41d has a shape such that the elastic coefficient in the second direction is larger than the elastic coefficient in the third direction.
[0019]
Further, the elastic portion 41d is separated from the surface defined by connecting the pair of guide grooves 51a, 52a of the first guide means by 1 mm or more in the third direction C. A first plate-like body 41e extending in parallel with a surface defined by the first direction A and the third direction C is integrally formed in the free end region of the elastic portion 41d. An edge portion 41f of the first plate-like body 41e facing the film 1 constitutes one side of the first contact portion and forms a contact portion that contacts the film 1.
The edge portion 41f as the first contact portion forms a curve, and when the 135 type wide film 1 contacts the edge portion 41f, the edge portion 41f is efficiently against the elastic force of the elastic portion 41d. The first plate-like body 41e is shaped to be displaced in the third direction C. In this embodiment, it has a convex shape.
[0020]
On the surface of the first plate-like body 41e facing the second rack frame 52, a contact surface 41g is formed as a second contact portion on one side that is guided by sliding contact with the second transported body. Yes. Therefore, the edge 41f as the first contact portion is formed continuously with the contact surface 41g.
The second member 42, which is the other side of the second guide means 40, has a surface object relationship with the first member 41, and is attached to the second rack frame 52 with screws 42 b corresponding to the first member 41. A base portion 42a, an extending portion 42c, an elastic portion 42d extending in the first direction A from the end portion of the extending portion 42c, and a second plate-like body 42e formed in the tip region of the elastic portion 42d. An edge portion 42f of the second plate-like body 42e facing the film 1 constitutes the other side of the first contact portion. Further, a contact surface 42g as a second contact portion on the other side that is guided by sliding contact with the second transported body is formed on the surface of the second plate-like body 42e facing the first rack frame 51. Has been. The distance between the contact surface 41g of the first member 41 and the contact surface 42g of the second member 42 is set to be the same as or slightly larger than the film width (24 mm) of the IX240 type.
In FIG. 5, 41 h is a pair of connecting bodies that connect the first member 41 and the second member 42, and these are provided at intervals in the first direction A, and the first member 41 and the second member 42 It has the effect of preventing the interval from expanding beyond the set value.
[0021]
Next, the actual movement of the second guide means will be described.
FIG. 6A is a view showing a state in which a leader unit attached to the tip of a 135 type film or an IX240 type film as an example of the first transported body passes through the second guide means. is there. The film 1 is conveyed along the traveling direction A and contacts the pair of edge portions 41f and 42f of the second guide means. At this time, since the film 1 is supported by the pair of grooves 51a and 52a as the first guiding means, a reaction force acts on the edge portions 41f and 42f. As a result, the elastic force of the elastic portions 41d and 42d is exerted on the elastic force. Oppositely, the pair of plate-like bodies 41e and 42e are displaced in the third direction C. Thereby, a pair of contact surfaces 41g and 42g as a 2nd contact part move from the conveyance path of the film 1 so that the passage of the film 1 may not be disturbed.
[0022]
On the other hand, as shown in FIG. 6B, when an IX240 type film, which is an example of the second transported body, passes through the second guide means, the film 1 ′ is a pair of second contact portions. The contact surfaces 41g and 42g are slidably contacted and guided, and guided to the guiding means having the same structure and disposed on the lower side in the traveling direction.
The second guide means 43 is basically the same as that shown in FIG. 5, but only the length of the elastic portion is different. Further, the second guide means 44 differs from that shown in FIG. 5 in that the first plate-like body is formed slightly smaller and the length of the elastic portion is shortened. In this way, the size of the second guide means varies depending on the place where it is arranged.
[0023]
Next, the shape of the second guide means 45 attached to the upper turn rack 18 will be described with reference to FIG. The first and second members 46 and 47 of the second guide means 45 have base portions 46a and 47a attached to the upper turn rack 18 by mounting screws 46b and 47b, and extended portions 46c and 47c extending inward from the base portion. Elastic portions 46d and 47d extending in the tangential direction of the conveyance path of the film 1 from the respective installation portions 46c and 47c, and plate-like bodies 46e and 47e extending in the conveyance path direction from the respective elastic portions 46d and 47d. When the edge portions 46f and 47f as the first contact portions facing the film 1 of the plate-like bodies 46e and 47e come into contact with the 135 type film as an example of the first transported body, the elastic portions 46d and 47d The plate-like bodies 46e and 47e are displaced in a direction away from the conveyance path so as to face the elastic force. Further, when an IX240 type film as an example of the second transported body is transported, a pair of facing contact surfaces 46g and 47g as the second contact portion are slidably guided. Incidentally, 46i is a connecting body for connecting a pair of plate-like bodies 46e, 47e, and the notches 46h, 47h are for avoiding one rotating shaft of the guide roller 33. [Another embodiment]
Hereinafter, an embodiment different from the configuration of the above embodiment will be described. However, the configuration of the above embodiment and the configuration of some of the following other embodiments or the features of the following other embodiments are not inconsistent unless disclosed. Can be combined.
(1) In the above embodiment, the edges 41f and 42f as the first contact portions of the second guide means have a convex shape, but as shown in FIG. You may form as the edge part 92 which has a concave shape as shown in FIG. Alternatively, as shown in FIG. 10, the region 93 that first contacts the first transported body may have a concave shape, and the subsequent region 94 may have a convex shape.
(2) Further, as shown in the cross-sectional view of the pair of plate-like bodies in FIG. 11, a portion where the interval Wc on the side of receiving the second carrier to be received of the pair of plate-like bodies is increased is formed, The body 1 'can be easily accepted. At this time, the interval Wc is smaller than the width of the first transported body, and when the first transported body passes, it is displaced in a direction away from the transport path as described in the above embodiment. Yes.
(3) As shown in FIG. 12, in addition to the first guide means and the second guide means 40 constituted by the guide grooves 51a and 52a, a narrower transported body having the same shape as the second guide means is provided. You may provide the 3rd guide means 80 to guide in the state shifted with respect to the 2nd guide means 40. FIG. Thereby, the to-be-conveyed body which has three different width | variety can be guided in one conveyance path.
(4) In the above embodiment, for example, the first member 41 and the second member 42 of the second guide means 40 are connected by the connecting body 41h, but this is not necessarily required. The same applies to the connecting body 46i of the second guide means 45.
(5) In the above embodiment, an independent type of film development processing apparatus has been described as an example. However, the present invention can also be applied to an apparatus including both a film development processing apparatus and a printing apparatus.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an automatic development processing apparatus having a guide portion according to the present invention. FIG. 2 is a sectional view showing an arrangement of a guide portion according to the present invention with respect to a rack. FIG. 4 is a plan view showing the second guiding means according to the present invention. FIG. 5 is a perspective view showing the structure of the second guiding means according to the present invention.
(A) Side view showing the state of the second guide means when the transported body having a wide width passes (B) Side view showing the state of the second guide means when the transported body having a narrow width passes 7 is a perspective view showing the structure of second guide means having another shape. FIG. 8 is a side view showing the shape of second guide means according to another embodiment. FIG. 9 is the shape of second guide means according to another embodiment. FIG. 10 is a side view showing the shape of the second guide means according to another embodiment. FIG. 11 is a side view showing the shape of the second guide means according to another embodiment. , Perspective view showing the second and third guide means [Explanation of symbols]
2 Film loading section 3 Film developing section 21 Processing tank for developer 32 Pressure roller 33 Straight roller 40 Second guide means 43 Second guide means 44 Second guide means 45 Second guide means 51a Guide groove 51b Guide groove 52a Guide groove 52b Guide groove

Claims (4)

A guide mechanism for an automatic development processing apparatus having a guide part for transporting a photographic photosensitive material along a transport path, wherein the guide part includes at least a first transported body having a first width; Two types of second objects to be conveyed, which are second objects having a second width smaller than the first width, can be guided, and the first guide means for guiding the first object to be conveyed, the second Second guiding means for guiding the transported body is provided, the first guiding means functions as a width direction guide for the first transported body, and the second guided means passes through the first transported body. A first contact portion that contacts the first transported body, a second contact portion that forms a contact surface as a width direction guide of the second transported body , and the first contact In order to permit passage of the first transported body by contacting the first transported body with the part Characterized in that it comprises an elastic portion which is elastically deformed in order to avoid interference with the second abutment the abutment of the first object to be transferred is displaced from the transport path of the first object to be transferred the Guide mechanism for automatic development processing equipment. The elastic portion extends in a first direction corresponding to a conveying direction of the first and second transported bodies, and the first contact portion is provided in a free end region of the elastic portion, and the first contact 2. The guide mechanism for an automatic development processing apparatus according to claim 1, wherein when the portion comes into contact with the first transported body, the part is displaced in a second direction corresponding to a direction perpendicular to a surface of the first transported body. The second contact portion is a pair of contact surfaces that extend in parallel with the transport direction of the first and second transported bodies, face each other, and are provided at substantially the same interval as the second width. A guide mechanism for an automatic development processing apparatus according to claim 2, wherein the guide mechanism is formed. 4. The guide mechanism for an automatic development processing apparatus according to claim 3, wherein the first contact portion is a pair of edge portions that are respectively provided continuously on the pair of contact surfaces and that face the conveyance path. 5.

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