JPH0455320Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a negative mask holder that is attached to a photoprinting device or photoprinting machine called a printer in the photographic industry and is used for attaching a negative mask. It is.

(Prior art) Printers, especially printers that are equipped with a negative mask that holds negative films of the same width but different frame sizes, and are capable of printing continuously on photographic paper of the same width, For different frame sizes, there are models in which the negative mask holder itself, which is attached to the main body of the printer, can be rotated relative to the main body of the printer, and this is becoming popular as it is timely. Ta.

(Problem that the invention aims to solve) However, with this type of printer, the linkage mechanism between the main body of the printer and the negative mask holder is of course complicated, and this not only makes it difficult to manufacture but also In particular, there are various difficulties associated with maintenance, and there are problems with accuracy, and there are calls for improvement due to the increase in film consumption rate,
With the increase in the prevalence of various processing equipment in each country due to the generalization of processing methods for various types of film, which was inevitably induced by this, the spread of various processing equipment has increased not only in Japan, but especially in less developed countries. It would be no exaggeration to say that the situation had reached its limit.

(Means for Solving the Problems) The present invention was developed in view of the above-mentioned actual situation, and consists of a negative mask holder that includes a base part that is used for fixing the negative mask holder to the printer, and a base part that is used for fixing the negative mask holder to the printer. In a negative mask holder, which is rotatably held by a board part and consists of a mount part provided for mounting a negative mask, the base board part has a large diameter opening in the center. A stopper for regulating the rotation range of the mount part is attached to the front side of the base body, which is formed from the back side with a circular concave part for fitting the circular flange part, which is concentric with the through hole and has a larger diameter than the through hole. The mount part has a transparent hole in the center which is concentric with the through hole and is used not only to form an optical path for printing onto photographic paper but also to move the holding piece of the negative mask holding piece back and forth. A hole is opened, and the outer peripheral edge of one end is provided with a circular flange portion that is rotatably fitted into the circular recessed portion for fitting the circular flange portion, and the circular flange portion is rotatably fitted into the circular recessed portion for fitting the circular flange portion. It is characterized by being formed of a rotatable circular base plate that is inserted from the back side, and a mount body that is fixed on the circular base plate and is used for inserting and mounting a negative mask. be.

[Effect]

The negative mask holder according to the present invention has the above-described configuration and can be used by simply attaching and fixing the base plate to a predetermined location in the main body of the printer, and can hold negative film on photographic paper of the same width. Even if the width is the same, if the frame size is different, rotate the mount for inserting the negative mask until it touches the other stopper, and replace it with a printing lens barrel that matches the frame size. It becomes possible to perform a baking operation.

(Examples) Examples of the present invention will be described below as examples of the "negative mask holder" according to the present invention, and will be described in Utility Model Application No. 59-89413 (Utility Model Application No. 61-6832) filed by the present applicant.
This will be explained by referring to an illustrated embodiment in which the "negative mask with frame feeder" described in the specification and drawings attached to the application can be attached and used.

In the figure, A is the base part of the negative mask holder of the present invention that is attached to a printer (not shown) and is used for fixing thereto, and B is rotatably held by the base part A. This is the mount part of the negative mask.

As shown in Figures 1, 2, and 3, the base section A can have any arbitrary shape, but in the one shown, it is approximately square when viewed from above; A large-diameter through hole 2 is opened in the center, and a circular flange portion 23 of a mount portion B, which will be described later, is fitted from the back surface concentrically with this through hole 2, and is held rotatably. A circular recess 3 for fitting a circular flange part to the circular recess 3 and a cover plate 5 for fitting and fixing the cover plate 5 that covers the circular flange 23 fitted into the circular recess 3 and prevents the mount part B from coming off. a base body 1 formed with a concave portion 4 for fixing the cover plate; b concentric with the through hole 2 and used for forming an optical path for printing onto photographic paper; Through hole 6 provided for advancing and retracting 12
is opened, and spring mounting recesses 8, 8 are fitted with springs 7, 7 that come into elastic contact with the end face of a circular base plate portion 20 for rotation of the mount portion B, which will be described later, which is fitted into the recess portion 3. a cover plate 5 which is fitted into the recessed part 4 to cover the circular flange part 23 fitted into the recessed part 3 and prevent the mount part B from coming off; c facing elongated side plates 11; , 11 are bent so that their tips can protrude into the through hole 6.
is extended, the other end is connected by a connecting plate 13, and in order to make the both side plates 11, 11 swingable, they are fitted into shaft holes 14, 14 provided approximately in the center thereof. The shafts 15, 15 are
A support plate 1 established on the back surface of the base 1
6 and 16, and one end of a spring 17 wound around one shaft 15 is attached to one support plate 16,
The other end is locked to one side plate 11, and the presser pieces 12, 12 are always urged to move away from the through hole 6, and the presser pieces 12, 12 that are urged away from , which is also attached to the back surface of the base 1, and when energized, the linking plate 13
The link plate 13 hits the stoppers 19, 19 provided on the end face of the push solenoid 18, which pushes the presser pieces 12, 12 toward the surface of the base 1 through the through hole 6, and holds them stopped. A negative mask holding piece 10 configured to hold a negative mask; Stoppers for 9,
9 (see FIG. 5), and as shown in FIGS. 1 and 2, and FIG. A through hole 22 is opened in the center and overlapped with each other, and a circular flange portion 23 is rotatably fitted and supported in the recessed portion 3, and the spring 7,
a rotational circular base plate part 20 having a thickness such that the end face opposite to the end face with which 7 is brought into elastic contact, that is, the front face side, slightly protrudes from the surface of the base body 1; They are each fixed at a symmetrical position on the surface side in the diametrical direction with one narrow side in parallel so that the axis is parallel to the surface,
On the opposite sides of the square timbers, each end of which is long enough not to protrude outside the base 1, and whose cross section perpendicular to the axis is approximately the same shape and size, and one end is slightly shorter, is the "negative mask with frame feeding device". In order to be able to insert and attach the negative mask from the front as shown in FIG.
₁ , 51 ₂ and a stepped portion 31 is provided,
One end of springs 32, 32 is attached to each of the other sides of the one side to feed the inserted negative mask in the direction of the through hole 22, and the negative mask is inserted into one of the slightly shorter square pieces. Springs 33, 33 are attached to always push this negative mask toward the other square piece, and when the negative mask is inserted to a predetermined position between the two square pieces, springs 33, 33 are attached to one end of the other square piece. In addition to a connector 34 that also serves as a stopper for contact connection, a negative mask mount main body 30 is provided with covers 35, 35 to which rotation knobs 36, 36 are fixedly attached to both corners. It is configured.

Note that numerals 37 and 37 in the figure are notches for escape from the stoppers 9 and 9 when rotating the mount part B, and also for attaching the base plate part A to the printer, fixing means, and printer. Illustrations and explanations of the power supply means for the power solenoid 18 and the connector 34 are omitted since they can be easily accomplished using conventional technical means in this industry. , the springs 7, 7 are connected to the power supply side, this is used as one terminal, and the other terminals are individually arranged along the end surface of the rotating circular base plate part 20 that is brought into elastic contact with the springs 7, 7. This may be connected to the push solenoid 18 and the connector 34, or the negative mask holding piece 10 may be installed on the printer side.

Further, 40 in FIG. 2 is a mounting portion for the printing lens barrel 41, and 42 is a stopper.

The negative mask holder of the present invention has the above-described structure, and is simply fixed at a predetermined mounting point in front of the mounting section 40 of the lens barrel 41 for printing onto photographic paper in the main body of the printer. If necessary, it can be used with only the extremely simple means of wiring for power supply, and the negative mask is inserted into the mount main body 30 and stopped by hitting the connector 34 which also serves as a stopper.
If it is fixed by contacting one of the stoppers 9, the push solenoid 18 is activated, and the negative presser plate of the negative mask is pressed and fixed by the presser pieces 12, 12 of the negative mask presser piece 10, the image can be fixed on the photographic paper. Burning operation becomes possible.

The negative film width is the same but the frame size is different, and when printing on photographic paper of the same width, the mount main body part 30 for inserting the negative mask is rotated by grasping the rotation knob 36, and the other stopper is rotated. 9, and at the same time attach a lens barrel for printing that matches this to the attachment part 40.
Burning operation becomes possible.

In short, the negative mask holder of the present invention can be simply attached and fixed to a predetermined location on the main body of the printer using its base, so the linkage mechanism between the main body of the printer and the negative mask holder is extremely simple. Not only is it extremely easy to manufacture and maintain the mask holder, but it is also possible to prepare several types of negative masks with frame feeding devices specifically for negative film, which have different frame sizes but the same width. The negative mask holding the desired negative film is attached to the negative mask holder which is attached and fixed to the printer at the base plate.
By rotating the mount, it became possible to print on photographic paper of the same width to match the frame size of the negative film.

(Effects of the invention) As is clear from the above description, according to the invention, several types of negative masks with frame feeding devices dedicated to negative films with different frame sizes but the same width can be prepared and used as desired. By attaching a negative mask holding a negative film to a negative mask holder fixed on the base plate of the printer, and rotating the mount, the frame of the negative film can be placed on photographic paper of the same width. The linkage mechanism between the negative mask holder and the printer body in a printer that enables printing operations that match the size of the printer is extremely simple, making it possible to provide a negative mask holder that is extremely easy not only to manufacture but also to maintain. It became.

[Brief explanation of the drawing]

The drawings show an embodiment of the negative mask holder according to the present invention, in which Fig. 1 is a front view seen from the front side, and Fig. 2 is a cross-sectional view of only the main part along the - line in Fig. 1. A cross-sectional view showing a part of the printer main body as seen in the direction of the arrow, No. 3
The figure is an exploded perspective view of only the negative mask holding piece, Figure 4 is a cross-sectional view of only the negative mask mount section taken along the - line in Figure 1 and viewed in the direction of the arrow, and Figure 5 is a cross-sectional view of the mount section. FIG. 1 is a front view when the device is rotated 90° clockwise from the state shown in FIG. A... base plate part, 1... base body, 2, 6... through hole,
3...Circular recessed part for fitting the circular flange part, 4...
Recessed portion for fixing cover plate, 5...Cover plate, 7...Spring, 8
... Spring mounting recess, 9 ... Stopper, 10
...Negative mask holding piece, B...Negative mask mount part, 20... Circular board part for rotation, 22...
Through hole, 23...Circular flange part, 30...Mount main body part, 31...Step part, 32, 33...Spring,
34... Connector that also serves as a stopper, 35...
Cover, 36...Turning knob, 37...Notch, 40...Device section of lens barrel 41 for printing.

Claims (1)

[Scope of utility model registration request] A base plate part provided for mounting and fixing to the printer, and rotatably held by the base plate part,
In a negative mask holder configured with a mount part provided for mounting a negative mask, the base part is concentric with a large diameter through hole opened in the center part, and the base part is concentric with a large diameter through hole opened in the center part, A stopper for regulating the rotation range of the mount part is attached to the front side of the base body in which a circular recessed part for fitting a large-diameter circular flange part is formed from the back side. A through hole is provided concentrically with the through hole and is used not only to form an optical path for printing onto photographic paper but also to advance and retreat the holding piece of the negative mask holding piece, and on the outer periphery of one end. a circular flange portion rotatably fitted into the circular recessed portion for fitting the circular flange portion; , fixed on the circular substrate part,
A negative mask holder characterized in that it is formed with a mount main body portion provided for inserting and mounting a negative mask.