JPH0138587Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is intended to be used to create a long photographic light-sensitive material made of photographic paper or negative film, for example, by being installed in a photographic processing device for printing and developing photographic paper. Regarding a guide device for guiding the conveyance of a long photographic material, in particular, the guide width of a guide member for guiding the photographic material can be easily and accurately adjusted according to the width dimension of the photographic material. This invention relates to a guide device.

(Prior Art) In a photographic processing device that automatically prints and develops photographic paper as a photosensitive material, for example, when processing multiple types of photographic paper with different width dimensions, it is necessary to It is necessary to change the guide width of the guide member that guides it according to the width dimension. For this purpose, each guide piece constituting the guide member is provided with a moving block, and an operating rod provided with a knob for adjusting the guide width is inserted into each moving block, so that the operating rod and one of the moving blocks are connected. It is known that the two moving blocks are connected with a right-hand screw, and the other moving block is connected with a left-hand screw, and the guide width is adjusted by appropriately rotating a knob. The positioning of this guide width is
For example, a method can be considered in which an electrical detection device such as a potentiometer is provided and the amount of movement of the guide piece is read by this detection device, but in such a method, the display of the amount of movement is constantly monitored. This method not only has disadvantages such as having to adjust the guide width, resulting in poor workability and the possibility of erroneous operation, but also has the drawback of being expensive because it uses an electrical detection method.

(Problems to be Solved by the Invention) The present invention has been made in view of the above-mentioned points, and has a simple configuration for conveying a long photographic material that allows easy and accurate adjustment of the guide width. The purpose of this invention is to provide a guide device for.

(Means for Solving the Problems) For this purpose, the present invention provides a method for photosensitive material by rotating a width adjustment knob on a guide member consisting of a pair of left and right guide pieces that guide both sides of a long photosensitive material. A width adjusting member is attached to adjust the interval between the guide pieces according to the width dimension of the material, and the rotation of the knob is transmitted via a rotation transmission mechanism to a positioning member having a plurality of positioning notches formed on the outer periphery. The present invention is characterized in that an engaging member that can be engaged and detached from each of the notches is biased in a direction to abut against the outer peripheral portion of the positioning member.

(Function) By configuring as described above, when the width adjustment knob is rotated appropriately, the width adjustment member is actuated to change the interval between the guide members, and the guide width is adjusted. The rotation is transmitted to the position member via the rotation transmission mechanism, the position member rotates, and the engagement member engages with a notch formed on its outer periphery, thereby positioning the guide width. be able to. Therefore, while the knob is rotated to move the guide width by the required amount, the position member is made to rotate approximately once, and the position member can be positioned at each position corresponding to the type of width dimension of the photosensitive material. By forming the notch in this way, the guide width can be easily and accurately positioned, and erroneous operation can be reliably prevented.

(Embodiments) Hereinafter, embodiments of the present invention will be described in the case where the guide device according to the present invention is used in a photographic processing apparatus that automatically prints and develops photographic paper.

First, FIG. 1 shows the overall configuration of a photo processing apparatus, in which 1 is a printer section, 2 is a processor section, 3 is a drying section, and 4 is a cutter section.
The photographic paper P is wound in a long length around a roll 5 installed in the printer section 1, and the photographic paper P sent out from the roll 5 is conveyed by a conveyance roller 6 installed at an appropriate position. In the meantime, it is exposed and printed by an exposure device 7 provided in the printer section 1, developed by being immersed in a developing solution or the like in the processor section 2, and further dried in a drying section 3. After that, the cutter 8 installed in the cutter part 4 cuts each burned surface part. and,
In order to convey the photographic paper P accurately without causing any misalignment or meandering, for example, a part A in the printer section 1, a part B between the printer part 1 and the processor part 2, etc.
A guide device is installed at a section C, a section D, etc. in the cutter section 4.

These guide devices are constructed as shown in FIG. That is, in the figure, 10 is a guide member consisting of left and right guide pieces 10a, 10b, and these guide pieces 10a, 10b are provided with slit grooves 11, 11 through which both sides of the photographic paper P are inserted. . The guide pieces 10a, 10b are supported by a plurality of support shafts 12, 12, . . . so as to be movable toward and away from each other.
Furthermore, moving blocks 13a and 13b are attached to the guide pieces 10a and 10b, respectively, and an operating rod 14 is inserted into each of the moving blocks 13a and 13b. The operation rod 14 and the moving block 13a are connected with a right-hand screw, and the movement block 13b is connected with a left-hand screw, so that a width adjustment knob 15 attached to the tip of the operation rod 14 can be rotated. Accordingly, the moving blocks 13a, 1
3b, the guide pieces 10a and 10b are moved at a constant speed in the direction toward and away from each other, so that the guide width l by the guide member 10 can be changed.

Next, reference numeral 16 indicates a small gear fixedly attached to the operating rod 14, and the small gear 16 meshes with a large gear 17. When the operating rod 14 is rotated by operating the knob 15, the large gear 17 is rotated. The gears 16 and 17 are adapted to be rotated at a reduced speed according to the tooth ratio between them and the small gear 16, and these gears 16 and 17 constitute a rotation transmission mechanism. A disk-shaped mounting plate 18 is fixedly attached to the large gear 17, and three disk-shaped position plate pieces 19a, 19b, 19 are attached to the mounting plate 18.
A position member 19 consisting of c is fixedly provided. Each position plate piece 19a, 19b,
19c, as shown in FIG. 3, positioning notches 20a, 20b, 20c are formed on the respective outer peripheral surfaces at different positions in the circumferential direction, and at the notch forming positions on the other position plate pieces. Relief portions 21a, 21 having a predetermined length in the circumferential direction
a, 21b, 21b and 21c, 21c are provided. Furthermore, each position plate piece 19a, 1
9b, 19c are each provided with a plurality of long holes 22, 22, .
a, 19b, and 19c, and are formed in an arc shape concentric with each other, and screws 23 are inserted into each long hole 22 to attach the mounting plate 18.
These position plate pieces 19a, 19b, 19c are fixedly connected to the large gear 17 by being fastened to the large gear 17.

Next, reference numeral 24 denotes an actuating member rotatably supported by a shaft 25, and the actuating member 24 has the notch 20.
A roller 26, which serves as an engaging member that can be engaged and disengaged, is rotatably supported by a, 20b, and 20c. A spring 28 as a biasing means is compressed between the actuating member 24 and the spring receiving member 27, and the spring 28 causes the actuating member 24 to move the roller 26 attached thereto onto the outer peripheral surface of the position member 19. It is biased in the direction of contact.

The present embodiment is constructed as described above, and the left and right sides of the photographic paper P are connected to the slit grooves 11 and 11 of the guide pieces 10a and 10b constituting the guide member 10.
It is designed to be inserted between the two and transported without causing any misalignment or meandering.

Here, even if the photographic paper P is of the same type, its width differs depending on the type, albeit slightly. Therefore, different types of photographic paper P
To print and develop the image, rotate the knob 15,
By moving the support blocks 13a and 13b toward or away from each other, the guide width l can be changed in accordance with the width of the photographic paper P.

At the same time, the small gear 1 attached to the operating rod 14
6 also rotates, and this rotation is transmitted to the large gear 17, causing the large gear 17 to rotate at a reduced speed, and the position member 9 fixed thereto also rotates. Then, when the position member 19 rotates by a predetermined amount, the position plate pieces 19a to 19c
For example, a notch 20a provided on the position plate piece 19a is displaced to a position facing the roller 26. Here, the roller 26 is always urged by a spring 28 in the direction of contacting the outer circumferential surface of the position member 19, and the position plate pieces 19b and 19c at the portion where the notch 20a is formed have relief portions 21b and 19c, respectively. 21c, the roller 26 engages with this notch 20a and is out of contact with the position plate pieces 19b, 19c. When the roller 26 engages with the notch 20a in this way, the action of the spring 28 causes the knob 15 and the operating rod 1 to
4 is positioned in a stable state, and this engagement state is transmitted to the operator operating the knob 15 as a feeling of resistance, allowing the operator to recognize that the guide width has reached a predetermined value. You can force it. Then, when the knob 15 is further rotated against the resistance by the aforementioned spring 28,
The roller 26 is disengaged from the notch 20a, and when the notch 20b or 20c of the position plate 19b or 19c is rotated to a position where it faces the roller 26, the notch 20b or 20c and the roller 26 engage with each other. Positioning is performed.

Therefore, the aforementioned three notches 20a to 20c
For example, the notch 20a is provided at a position with a guide width suitable for guiding photographic paper of the maximum width dimension, and the notches 20b and 20c are provided at positions with a guide width suitable for guiding photographic paper of intermediate width and minimum width, respectively. If provided, the guide width l of the guide member 10 can be easily and reliably adjusted according to the width dimension of the photographic paper P.

By the way, when positioning the three types of guide width l as described above, if there is a manufacturing error in the notch forming position, for example, it will not be possible to accurately position them, but the position plate piece 1
9a to 19c are fixed to the mounting plate 18 with screws 23, and each position plate piece 19a to 19c is provided with an arcuate long hole 22 for attaching the screws, so they can be rotated. By shifting the position in the direction, the position of the notch can be easily and precisely fine-adjusted.

In the above embodiment, the guide device of the present invention was explained as being used in a printing/developing device for photographic paper, but it can also be used as a guide device installed in a developing device for negative film to guide the conveyance of negative film. It can also be used. Further, the type of setting guide width can be selected as appropriate by increasing or decreasing the number of position plate pieces. moreover,
In addition to the mechanism described above, the mechanism for moving the guide pieces 10a and 10b includes a moving block attached to one guide piece 10b and screwed to the operating rod 14, and a mechanism for moving the guide piece 10b and the other guide piece. 10
It is also possible to use a link mechanism to displace the parts a and a in conjunction with each other by a link mechanism. Furthermore, in order to prevent the large gear 17 from rotating more than one revolution, a suitable stopper may be provided on the large gear 17 or the like. If there is no need to adjust the position of the notches, the notches 20', 20', .
It may be configured to form...

(Effects of the invention) As detailed above, the guide device according to the invention is configured such that the guide width of the guide member can be adjusted by rotating the knob, and the rotation of the knob is transmitted through the rotation transmission mechanism. The positioning member is provided with a plurality of positioning notches and an engaging member that engages with the notches, so that the guide width can be adjusted by rotating the knob. When adjusting the knob, when it reaches a predetermined width state, the engaging member engages the notch and is positioned at that position, and the knob operator can recognize it as an operating feeling. Therefore, the guide width can be adjusted easily and reliably. Moreover,
Since it does not use an electrical detection device, it can be manufactured at low cost, has few failures and operates stably, and unlike electrical positioning methods, it does not require adjustment of the origin position, etc. .

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of a photographic processing apparatus to which a guide device according to the present invention is installed, FIG. 2 is a perspective view of essential parts showing an embodiment of the present invention, and FIG. 3 is an exploded perspective view of a positioning member. FIG. 4 is a front view showing the engaged state of the position member and the engagement member, FIG. 5 is a bottom view of the main part of FIG. 4, and FIG. 6 is a front view showing a modification of the position member. 10: Guide member, 10a, 10b: Guide piece, 13a, 13b: Moving block, 14: Operating rod, 15: Knob, 16: Small gear, 17: Large gear,
19, 19': Position member, 19a, 19b,
19c: Position plate piece, 20a, 20b, 20
c, 20': notch, 26: roller, 28: spring,
P: Photographic paper.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) By rotating a width adjustment knob on a guide member consisting of a pair of left and right guide pieces that guide both sides of a long photosensitive material, the width dimension of the photosensitive material can be adjusted. A width adjustment member is attached to adjust the spacing between the guide pieces, and the rotation of the knob is transmitted via a rotation transmission mechanism to a position member having a plurality of positioning notches formed on the outer periphery. . A guide device for conveying a long photosensitive material, characterized in that an engaging member that can be engaged and detached from each of the notches is biased in a direction to come into contact with the outer peripheral portion of the positioning member. (2) The position member is formed by overlapping a plurality of position plate pieces each having one notch formed at a different position, and each position plate piece has the notch formed in the other position plate piece. A relief part is formed to hold the engaging member in a non-contact state, and the notch spacing can be adjusted by displacing the position plate pieces in the rotational direction when the position plate pieces are connected and fixed to the rotation transmission mechanism. A guide device for conveying a long photographic material as set forth in claim (1) of the utility model registration, characterized by: