JPS6160422B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a data imprinting device for a camera, and more particularly to a data imprinting device that automatically imprints the number of film frames onto a film loaded in a camera.

2. Description of the Related Art Conventionally, data imprinting devices for cameras allow a photographer to arbitrarily select data such as a photographing date, year, day of the week, etc., and imprint this data onto a film. In addition, data such as the shooting date, year, and day of the week are displayed on the outer surface of the camera using a light emitting device such as an LED (light emitting diode). The photographer selects and imprints it on the film.
Various proposals have been made regarding this imprinting means.

However, the data in this conventional data imprinting device includes data such as the date of photographing, year of photographing, and day of the week of photographing, but does not record the order in which the photographs were taken. Then, burn the film that has already been taken,
If you organize these at a later date, the order in which they were taken will be unknown. This is extremely inconvenient when organizing academic data, photographic records, etc. In other words, the frame number is stamped on the film, but when the photographed film is printed, this frame number is not printed on the photographic paper, so when organizing the photographs, it is necessary to In order to know the order, it is inconvenient to have to check the frame number of the negative film each time.

This kind of drawback is that if the number of film frames is imprinted as data each time the film is taken, this is printed onto the photographic paper, so when organizing the film later, you can tell at a glance which frame it is. As a result,
All of the drawbacks of the conventional technology can be completely eliminated.

However, performing this printing operation manually is extremely inefficient, and in continuous shooting using a motor drive device, autowinder, etc., it is difficult to print different data on each frame of the film in an orderly manner. It becomes impossible. Also,
Even when using a long roll film such as 250 frames, it is extremely troublesome and difficult to manually print different data on each frame in an orderly manner because of the large amount of film.

An object of the present invention is to eliminate such drawbacks by skillfully utilizing film perforation so that the number of film frames representing the order of shooting is automatically imprinted as data each time a photo is taken. The purpose of this company is to provide a data capture device for a camera that has been used for various purposes.

As is well known, in the case of a 35 mm wide roll film, when the sprocket wheel rotates to transport one frame of film, eight perforations on the side edges of the film are fed.

In the present invention, this perforation movement is utilized to advance data in an orderly manner,
This was then imprinted on film.

Hereinafter, the present invention will be explained with reference to illustrated embodiments.

FIG. 1 is an exploded perspective view of a data imprinting device showing one embodiment of the present invention. The data imprinting device of the present invention is disposed between a back cover 1 of a camera and a pressure plate 2 that presses a film F, as shown in the figure. An elongated rectangular hole 2a is bored along the feeding direction of the film F in a portion of the pressure plate 2 corresponding to a part of the perforation Fa bored on the side edge of the film F. A portion of the perforation Fa is exposed within the rectangular elongated hole 2a. A driving member 3 is engaged with this exposed perforation Fa, and the rotation of this driving member 3 operates a stepping mechanism to be described later. The drive member 3 is composed of a pin wheel. This pin wheel is rotatably mounted on a horizontally suspended support shaft 4 attached to an immovable member (here, the case back), and four pins 5a to 5d are arranged at equal intervals on its outer circumferential surface. It is planted in the radial direction. In normal life, at least one of these pins 5a to 5d passes through the rectangular elongated hole 2a and intervenes in one of the perforations Fa of the film F. Further, the pins 5a to 5d are separated from each other by a perforation Fa of the film F.
It is formed to correspond to the distance of each interval. Therefore, when the film F is transported in the direction of arrow a and one frame of film is fed, as the eight perforations Fa move, the pins 5a to 5d are sequentially moved to each perforation. Fa
The pin wheel intervenes and rotates, and the pin wheel rotates twice around the support shaft 4.

A drive notch disk 6 is rotatably attached to a support shaft 7 near the upper side of the drive member 3 configured as described above, and is arranged parallel to the pressure plate 2 .
This cutout disk 6 has the pin 5a on its peripheral edge.
Eight notches 6a are formed at equal intervals corresponding to the pin intervals of ~5d, and the pins 5a to 5d of the pin wheel are sequentially engaged with the notches 6a. It's summery. Therefore, when the pin wheel that is the driving member 3 rotates twice due to the movement of the perforation Fa, the pins 5a to 5d
are sequentially engaged with the notch portion 6a and rotated around the support shaft 7, so that the notch disk 6 rotates once. Further, a driving pin 8 for operating the stepping mechanism is fixedly planted on the notched disk 6. This pin 8
serves to swing the driving lever 9 by a certain angle when the notched disk 6 rotates once.

The driving lever 9 is formed of an L-shaped lever whose fulcrum is pivotally attached to a shaft 10, and the tip of one arm 9a is placed on the rotation path of the driving pin 8. It's starting to extend. and other arm 9b
has a long hole 9c drilled at its tip, which fits into a connecting pin 11c of the feed lever 11.

The advancing mechanism is a mechanism that intermittently advances the data on the data board in which the number of film frames is recorded by one, and is constructed as follows.

In this embodiment, the data plate is formed by juxtaposing a data plate 13 representing the number of film frames in the ones digit and a data plate 14 representing the number of film frames in the tens digit. The number of film frames up to 99” is imprinted.
The data plates 13 and 14 for imprinting are formed of transparent disks, and numbers from "0 to 9" are written at equal intervals on their peripheries.
The numbers 3 and 14 at adjacent portions correspond to windows 2b for imaging onto the film F, which are bored in the pressure plate 2. Also, both data boards 1
3 and 14 have their rotational centers fixed to support shafts 15 and 16, respectively, which are rotatably attached to the back cover 1. The rotation center of a ratchet wheel 17 disposed above the data plate 13 is fixed to the spindle 15, and the periphery of the ratchet wheel 17 has a rotation center fixed thereto.
10 feeding pawl teeth are formed.

The feed pawl 18 of the ratchet wheel 17 is disposed with its base connected to the end of one arm 11a of the feed lever 11, which is swingably disposed near the ratchet wheel 17. The feed lever 11 has its fulcrum on the shaft 12.
The arm 11a extends to the right of the ratchet wheel 17, and the base of the feed pawl 18 is connected to the end of the arm 11a by a shaft 19. A torsion spring 2 is wound around the shaft 19.
The ends of both legs of 0 are one arm 11a and feed claw 18, respectively.
By passing it over, the shaft 1 is attached to the feed claw 18.
9, and by this habit, the claw portion 18a of the feed claw 18 is rotated clockwise around the ratchet wheel 1.
It is engaged between the feeding pawl teeth of No. 7. Further, the other arm 11b of the feed lever 11 extends toward the end of the other arm 9b of the drive lever 9, and the connecting pin 11c fixed at the tip thereof is connected to the other arm 9b.
It fits into the elongated hole 9c of b. The feed lever 11 also has a torsion spring 2 wound around the support shaft 12.
1 gives it the habit of swinging counterclockwise around the support shaft 12, and when the feed pawl 18 completes its stepwise movement, the feed pawl 18 and the drive lever 9 return to each other. It is designed to cause movement. However, the swing due to this habit is caused by the other arm 11
b collides with the stopper pin 22, thereby preventing unsteadiness.

Further, a check pawl 24 whose base portion is pivotably attached to a support shaft 23 is provided near the feed pawl 18 to prevent reverse rotation of the ratchet wheel 17. This non-return pawl 24 has a habit of rotating clockwise around the spindle 23 by a torsion spring 25 wound around the spindle 23, and due to the rotation due to this habit, its tip The pawl portion 24a is the pawl wheel 1.
No. 7, the claw portion 18a of the feed claw 18 engages with the feeding claw teeth.

On the other hand, the center of rotation of a notched disk 26 arranged above the data plate 14 is fixed to the support shaft 16, and ten notches 2 are formed on the periphery of this disk 26.
6a is provided. A girder pin 27 mounted on the ratchet wheel 17 is engaged with one of the notches 26a, and when the ratchet wheel 17 rotates once, the pin 27 is engaged. The data plate 14 is pulled out of the notch, rotates once with the disc 26, and engages the next notch, thereby reducing the data plate 14 by 1/2.
It is designed to perform a carryover by rotating 10 times. Further, on this notched disc 26, a ratchet wheel 28 is mounted on the support shaft 1.
6, and this ratchet wheel 28 is engaged with a check pawl 29a. The check pawl 29a is formed at the end of one arm of the stop lever 29 whose swing fulcrum is pivotally attached to the support shaft 30. is axis 3
By being given the habit of rotating counterclockwise around 0, the pawls of the ratchet wheel 28 are resiliently engaged. The non-return pawl 29a and the ratchet wheel 28 serve to keep the rotational position of the support shaft 16 from moving unintentionally. Furthermore, a release pin 32 is fixedly planted at the end of the other arm 29b of the stop lever 29.

On the other hand, the ratchet wheel 1 is attached to the support shafts 15 and 16.
Heart-shaped cams 33 and 34 for return are fixed above fixed upper portions of 7 and 28, respectively. The heart-shaped cams 33 and 34 are connected to the data plates 13 and 1.
4 to the initial state, that is, the state in which the data "0" and "0" correspond to the photographic window 2b, respectively, to rotate the support shafts 15 and 16, and both cams 33 and 34 are release arms 3
It is pressed by the convex portions 35a and 35b of No. 5, respectively, and rotates back to the predetermined position. The release arm 35 has its base swingably supported by a shaft 36, and has a conical pushing member 37 attached to the back cover 1.
When pressed, it swings clockwise around the support shaft 36 and presses the heart-shaped cams 33 and 34. Also,
When the release arm 35 swings clockwise,
A release pin 32 fixed to the stop lever 29
is also pushed by the release arm 35, and the stop lever 2
9 in a clockwise direction against its natural tendency to release the check pawl 29a from the ratchet wheel 28. The pushing member 37 also includes a restoring button 38 attached to the back cover 1 so as to be freely pushed.
It is fixed to the bottom of the conical part with the tip of the conical part facing downward. This pushing member 37 is the restoration button 3
When 8 is pushed in, the release arm 35 is swung by its conical portion, and at the same time it comes into contact with the feed pawl 18 and check pawl 24, causing both pawls 18, 24 to swivel against their natural tendency. and also serves to release the engagement with the ratchet wheel 17, respectively.

The restoration button 38 is attached to the free end of an elastic plate 39 whose base is fixed to the inner surface of the back cover 1, and its head is exposed to the outside through an opening 1a made in the back cover 1. are doing. Therefore, by pushing the exposed head toward the inside of the back cover 1, the pushing member 37 is lowered.

Further, on the support shafts 15 and 16, there is a data plate 4 for display above the heart-shaped cams 33 and 34.
0 and 41 are respectively fixed. On the periphery of the display data plates 40 and 41, the same numbers as those on the imprint data plates 13 and 14 are written opposite to the numbers on the data plates 13 and 14, respectively. Adjacent numbers on the data plates 40, 41 correspond to the transparent windows 1b provided on the back cover 1. These data plates 40 and 41 serve to display the data numbers to be imprinted on the film F in the window 1b, so that the data numbers imprinted on the film can be confirmed from outside the camera. can.

and the data plates 13, 14 and the ratchet wheel 17,
Data plates 13 and 14 are provided between the cutout disc 26 and the data plates 13 and 14.
An irradiation optical system is provided for imprinting the data numbers on the film F. This optical system is composed of an irradiation lamp 42, a condensing lens 43, a reflecting mirror 44, and an aperture window 45. The aperture window 45 is
It is arranged above the projection window 2b of the pressure plate 2, and above the diaphragm window 45, a reflection mirror 44 is arranged at an angle of 45 degrees. This mirror 4
4, the irradiation light flux of the irradiation lamp 42 enters horizontally through the condensing lens 43, and the irradiation light flux reflected at right angles by the mirror passes through the data numerals through the aperture window 45 and enters the photographic window. Data numbers are imprinted onto the film F via 2b.

In this embodiment configured in this way, when the film F is now transported by one frame in the direction of arrow a, the perforation Fa for eight frames is
As a result of this movement, the pin wheel, which is the driving member 3, rotates counterclockwise around the support shaft 4 twice. When this rotates twice, the notched disk 6 rotates once clockwise around the support shaft 7, and in the middle of this rotation, the driving pin 8 pushes and moves one arm 9a of the driving lever 9 by a predetermined angle. When this is pushed and moved, the lever 9 moves to the support shaft 1.
0 in the clockwise direction, the connecting pin 11c also moves in the same direction via the elongated hole 9c of the other arm 9b. When this pin 11c moves, the feed lever 11 swings clockwise around the spindle 19 against its own tendency, so the feed pawl 18 moves the ratchet wheel 17
Rotate clockwise by the length of the pawl teeth. When this rotates, the support shaft 15 also rotates by 1/10, so the data numbers on the data plates 13 and 40 are incremented by one digit, and the incremented data numbers are displayed in the windows 2b and 1b. Reveal. In this state, the shutter is turned off and photographing is performed, but at this time, the synchro contact that synchronizes with the shutter closes and the irradiation lamp 42 emits light. Therefore, due to this light emission, the data number is determined by the irradiation optical system on the film F.
is imprinted on the image.

Further, the feed pawl 1 that has sent the pawl wheel 17 by one pawl tooth
8, the feed lever 11 and the drive lever 9 are restored to their initial positions by the elasticity of the spring 21 when the drive pin 8 separates from the arm 9a. That is, the feed lever 11 rotates counterclockwise around the support shaft 12 by its own habit, and the other arm 11b
moves back to the initial position where it collides with the stopper pin 22, and as a result, as the arm 11a moves counterclockwise, the feed pawl 18 also moves back toward the next gap between the pawl teeth, causing the pin 11c to move counterclockwise. Due to the movement in this direction, the driving lever 9 also rotates counterclockwise around the support shaft 10, returning to the initial state in which the arm 9a is located on the rotation path of the pin 8.

In this way, as the film F is wound frame by frame, the data numbers are automatically incremented.
Then, when the data number in the 10's digit is reached, the digit pin 27 rotates once and the notched disc 2
Since 6 is rotated by one notch, that is, 1/10 rotation, a carry is performed here, and a two-digit data number is imprinted.

As described above, according to the present invention, when one frame of film F is transported, the data numbers that are automatically imprinted are incremented in order.

Further, in the embodiment shown in FIG. 1, the driving pin 8 and the feed lever 11 are connected by the driving lever 9, but as shown in the other embodiment shown in FIG. May be connected to

Next, to explain the embodiment shown in FIG. 2, on the rotation path of the driving pin 8 of the notched disc 6,
A normally open trigger switch S is provided, and an electromagnet drive circuit 46 that is activated when the switch S is closed is provided. It is adapted to attract the end of the other arm 11b. The electromagnet drive circuit 46 is composed of, for example, a well-known one-shot multivibrator, a magnet drive circuit, and a power supply, and is activated by applying a trigger signal when the trigger switch S is closed. The electromagnet 47 is excited. The rest of the structure is exactly the same as the embodiment shown in FIG. 1 above.

In the embodiment shown in FIG. 2 constructed in this manner, when one frame of film F is transported, the pin wheel of the drive member 3 rotates twice, the notched disc 6 rotates once,
Since the trigger switch S is closed, the electromagnet drive circuit 46 is activated and the electromagnet 47 is energized.
When this is excited, the other arm 11 of the feed lever 11
Since the b end is attracted, the lever 11 is attached to the support shaft 12.
rotates clockwise against its own habits around the
Rotate the ratchet wheel 17 by one tooth by the feed pawl 18,
The data plate 13 or data plates 13 and 14 are advanced.

In this way, even if the feed lever 11 is swung by the switch S, the electromagnet 47, and the electromagnet driving circuit 46, the data can be automatically advanced in an orderly manner.

In each of the above embodiments, the data number is 2 digits, but if the data number is 3 or more digits using a long film etc.
Of course, you can add a data plate and use a mechanical counter to increase the number.

Furthermore, in each of the embodiments shown in FIGS. 1 and 2 above,
Although the stepping operation of the data on the data plate was performed mechanically, this step can be performed purely electrically by using a well-known electro-optical display element. That is, an electro-optical display element is well known in which electro-luminescent elements such as liquid crystals are combined, and the numbers "0 to 9" are sequentially switched by an input signal using seven segments to display light.

FIG. 3 shows still another embodiment of the present invention constructed using this electro-optical display element. In this embodiment, for example, two three-digit electro-optic display elements that emit light to display up to the 100 digit are used. One of these electro-optical display elements 5
1 is disposed so that its light-emitting display surface corresponds to the data projection window 2b of the pressure plate 2, and the other electro-optical display element 52 is arranged so as to correspond to the data projection window 1b of the back cover 1
The light-emitting display surfaces are arranged opposite to each other. A light emitting drive circuit 53 for both of the light emitting display elements 51 and 52 is disposed on the pressure plate 2.
3 controls the light emitting display operation. As is well known, this light emitting drive circuit 53 is composed of a decimal counter circuit, a 7-segment decoder drive circuit, and a power supply, and each time a trigger pulse signal is applied as an input signal,
The numbers formed by the light emitting display elements of the segments are changed to advance them. In this embodiment, a trigger pulse signal for operating the drive circuit 53 is applied by a trigger switch So opened and closed by a drive pin 8.
The trigger switch So is a normally open switch, and its opening/closing contact piece extends onto the rotation path of the drive pin 8 set on the drive notch disk 6.

The structure of the notched disk 6 for rotating the drive pin 8, the drive member 3 for rotating this disk 6, etc. is exactly the same as the mechanism shown in FIGS. 1 and 2. Therefore, the explanation will be omitted.

Further, a zero return switch Sa is connected to the light emitting drive circuit 53 for setting the light emitting display of both the light emitting display elements 52 and 51 to zero display. This switch Sa is formed of a normally open micro switch and is disposed on the inner surface of the back cover 1, and its actuator is operated by the zero return button 54 attached to the back cover 1. It's starting to get pushed down. The head of the zero return button 54 is attached to the back cover 1.
The head is exposed on the outer surface of the back cover 1.
By pushing it in, the actuator is pressed down, the switch Sa is closed, and the light emission drive circuit 53 performs a zero return operation.

In the embodiment shown in FIG. 3 constructed in this way, when the film F is transported by one frame, the pin wheel of the drive member 3 rotates twice, and the notched disk 6 rotates once, thereby driving the film F. Pin 8 is the trigger switch
So is closed and a trigger pulse is applied to the light emitting drive circuit 53, so the circuit is activated and the light emitting numbers of both the light emitting display elements 51 and 52 are incremented. The light-emitting numerals of the element 51 are transmitted to the film F through the imaging window 2b as data representing the number of film frames.
At the same time, the luminescent numerals of the element 52 are displayed externally through the display window 1b.

Therefore, data can be automatically advanced in an orderly manner even when an electro-optical display element is used in this manner. In addition, in the embodiment shown in FIG. 3, since the display body of the electro-optic display element itself emits light, it has the advantage that an irradiation optical system for data projection is not required compared to the previous embodiment. Since the construction is also purely electrical, it has the advantage of being very simple.

As described above, according to the present invention, the data is automatically advanced, thereby eliminating the drawbacks of the conventional method and making it possible to use long roll film for photography, motor drive devices, autowinders, etc. It is possible to provide a camera data recording device that can be fully applied to high-speed continuous shooting using the present invention.

The above-mentioned data for imprinting and display is not limited to numbers, as it represents the order in which each film frame is photographed; for example, symbols, symbols, etc.
Of course, it may be a code, character, etc.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a camera data capture device showing one embodiment of the present invention, and FIGS. 2 and 3 are exploded perspective views of camera data capture devices showing other embodiments of the present invention. It is a diagram. F...film, Fa...perflation, 1...back cover, 2...pressure plate, 3...driving member.

Claims (1)

[Scope of Claims] 1. A through hole is provided in a part of the pressure plate that presses the film that faces the perforation of the film, and the perforation of the film is formed between the pressure plate and the back cover through the through hole. It consists of a drive member that is engaged and rotated around an axis that is parallel to the pressure plate and perpendicular to the film running direction as the film runs, and a data plate that operates around an axis that is perpendicular to the pressure plate. A data printing device for a camera, characterized in that when the data is sent, the frame number data on the data plate is stepped by a stepping mechanism, and the frame number data is imprinted onto the film.