JPH0829868A - Consecutive photographing camera - Google Patents

Abstract

PURPOSE:To reduce the vertical and horizontal size of a consecutive photographing camera capable of exposing a larger number of frames by a single releasing operation. CONSTITUTION:A black box 80 in which eight exposure frames 81 are arrayed in each of two upper and lower stages in the feeding direction of a film, that is, 16 exposure frames 81 in total are arrayed is provided between a cartridge loading chamber 84 and a film winding chamber 85. Eight shutter disks 32-39, that is, two groups of four shutter disks are arrayed in two stages and lines respectively in the feeding direction of the film. Each of these shutter disks 32-39 is provided with one slit and rotated so that the luminous flux of a pair of adjacent photographic lenses in the upper and lower stages out of 16 photographic lenses arrayed to correspond to the exposure frames 81 respectively is sequentially led to the exposure frame 81 through each slit, to attain photographing. Thus, each of the shutter disks 32-39 is made small in size and the camera is made compact.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous shooting camera which exposes a frame obtained by dividing one screen into a plurality of frames by one release operation.

[0002]

2. Description of the Related Art Conventionally, JP-A-5-45697 discloses
Between the Patrone loading chamber and the film winding chamber, 2
There has been proposed a continuous shooting camera in which four exposure frames, that is, eight exposure frames are formed along the feeding direction of the stepped film. The photographing lens is arranged on the front surface of the camera in an array corresponding to the exposure frame, and two shutter discs are arranged vertically offset from each other between the exposure frame and the photographing lens. These shutter discs are formed with gear trains on their outer circumferences, respectively, and are simultaneously rotated by transmission of a drive from a motor to each of them, and two shutter discs provided on one of the shutter discs are displaced in the radial direction. The slits guide the light flux from the lower shooting lens to the lower exposure frame in order along the film feeding direction, and the two slits on the other shutter disc that are shifted radially are used to shoot the upper shooting. The light flux from the lens is sequentially guided to the upper exposure frame along the film feeding direction to expose a time-series image on eight frames. In the structure of this continuous shooting camera, the eight exposure frames and the taking lens are divided into upper and lower two stages, and the two shutter discs are vertically displaced, so that the cartridge loading chamber and the film winding chamber are arranged. The distance between and can be shortened, and the lateral size of the camera can be made compact.

On the other hand, in Japanese Patent Laid-Open No. 5-72624,
A continuous shooting camera has been proposed in which eight exposure frames are formed in one line along the film feeding direction between the cartridge loading chamber and the film winding chamber. The photographing lens is arranged on the front surface of the camera in an array corresponding to the exposure frame, and between the exposure frame and the photographing lens, a straight line through which the two shutter disks pass through their respective rotation axes is a diagonal line rising to the left. It is arranged so that. Gear trains are formed on the outer circumferences of these shutter disks, and they mesh with each other. When the drive from the motor is transmitted to one of the shutter discs, the shutter discs rotate at the same time, and the two slits provided on one of the shutter discs are displaced in the radial direction.
The light beams from four of the taking lenses are sequentially guided to the exposure frame along the film feeding direction, and the other four are left by the two slits provided on the other shutter disc while being shifted in the radial direction. The light flux from the photographic lens is sequentially guided to the exposure frame along the film feeding direction to expose a time-series image on eight frames. In the structure of this continuous shooting camera, eight exposure frames and taking lenses are arranged in the film feeding direction, two shutter discs are shifted in the left-right direction, a motor is provided on the bottom surface of the exposure frame, and a film winding chamber is provided horizontally. Since there are battery compartments in which the batteries are loaded with the longitudinal direction being vertical,
The vertical size of the camera can be made compact.

[0004]

However, in the continuous shooting camera disclosed in Japanese Patent Laid-Open No. 5-45697, it is necessary to cover four photographing lenses along the film feeding direction with one shutter disk. Therefore, the diameter of the shutter disc is large, and the shutter discs are arranged so as to be displaced in the vertical direction. Therefore, the size of the camera in the vertical direction cannot be saved so much.

In the continuous shooting camera disclosed in Japanese Patent Laid-Open No. 5-72624, eight exposure frames and photographing lenses are arranged in the film feeding direction, and two shutter discs are shifted in the left-right direction to form an exposure frame. Since the motor is provided on the bottom surface of the film and the battery chamber in which the battery is loaded with the longitudinal direction being vertical beside the film winding chamber, the vertical size of the camera can be made compact, There was a drawback that the lateral size of the camera could not be saved much.

Further, in the continuous shooting camera described in each of the above-mentioned publications, since exposure is performed on only 8 frames in one release, it is appropriate for the photographer to shoot the movement of the subject. , Even if you take a picture to determine when to perform the shutter release timing, if you are not used to it, you can shoot a series of operations from the beginning to the end of the exercise within the continuous shooting time of 8 frames Or not
Also, important points in the movement, for example, the image of the moment of impact during a swing in golf may not be obtained in each of the eight frames, or the power of any of the continuous photographs was lacking, and they were taken. This results in dissatisfaction for people. Therefore, in order to eliminate such an adverse effect, the number of shutter disks is increased to 8 frames or more, for example, 1
A continuous shooting camera that sequentially exposes time-series images in 6 frames is desired. Therefore, even if the continuous shooting camera disclosed in Japanese Patent Laid-Open No. 5-45697 is improved and, for example, a continuous shooting camera that exposes images in time series to 16 frames is considered, the camera has the structure as described above. The size in the vertical direction cannot be made compact. In addition, JP-A-5-7262
The continuous shooting camera described in Japanese Patent No. 4 was improved to, for example, 1
Even if a continuous shooting camera that exposes images in 6 frames in time series is taken into consideration, there is a drawback in that the size of the camera in the lateral direction cannot be made compact due to the structure as described above.

The present invention has been made to solve the above-mentioned problems of the prior art, and its purpose is to
An object of the present invention is to provide a continuous shooting camera in which a vertical and horizontal size of a camera body having a structure capable of exposing more frames with one release operation is made compact.

[0008]

In the continuous shooting camera of the present invention, four shutter discs are arranged in two rows and two columns and assembled in the camera body, and each shutter disc is provided with one slit. With these rotations, the luminous fluxes of the pair of adjacent photographing lenses on the upper or lower side of the eight photographing lenses are sequentially guided to the exposure frame through each slit to perform photographing, and the rotation is performed on the exposure frame. A motor for driving the shutter disk is arranged, and a battery for supplying power to the motor is arranged below the exposure frame in parallel with the film feeding direction.

[0009]

Since the slits provided one for each shutter disc cover the pair of adjacent photographing lenses on the upper or lower side, the diameter of the shutter disc is reduced.
Moreover, since the shutter disks having a small diameter are arranged in two rows and two columns, it is possible to save the space for arranging the shutter disks in the vertical and horizontal directions. Further, the battery is arranged below the exposure frame with the longitudinal direction of the battery being lateral, and the motor is arranged above the exposure frame.
The size of the camera body in the lateral direction can be saved as compared with the continuous shooting camera described in Japanese Patent Laid-Open No.

According to the second aspect of the present invention, shutter discs each having two slits formed in two rows and two columns, a total of four sheets, are arranged along the N (natural number) set film feeding direction. It is installed in the camera body, and by rotating these shutter discs, the light fluxes of the pair of adjacent photographing lenses on the upper or lower side of the photographing lenses are sequentially guided to the exposure frame through one slit for photographing. Configured to do
Further, N motors for rotating one set of four shutter disks out of the shutter disks are arranged side by side on the exposure frame along the film feeding direction, and N motors are provided under the exposure frame. Batteries for supplying power to the film are arranged in parallel with the film feeding direction. As described above, when N shutter mechanisms are arranged side by side, the number of frames for exposing a time-series image is 8
× It can be improved to a continuous shooting camera with N frames. According to this, for example, when N is 2, it becomes a 16 continuous shooting camera, which is disclosed in JP-A-5-45697 or JP-A-5-45697.
Improved continuous shooting camera described in Japanese Patent No. 726241
Compared with a 6-shot camera, the size of the camera body in the vertical and horizontal directions can be saved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, the front of the continuous shooting camera 11 has a total of 16 openings 12a-12p, which are two in the vertical direction and eight in the horizontal direction.
Are formed, and the taking lenses 13a to 13p are exposed in the openings 12a to 12p, respectively. Further, the viewfinder objective window 14 is provided above the central portion of the upper opening rows 12i to 12p in order to reduce parallax.
The aspect ratio is almost the same as the frame divided into 16 pieces in total.

A shutter button 15, a power switch 17, a liquid crystal display panel 18, and a continuous shooting time change switch 19 are arranged on the upper surface of the continuous shooting camera 11. When the continuous shooting mode is selected, the continuous shooting time change switch 19 sets the total continuous shooting time from the shutter release to the exposure of the last frame to a low speed (2
Second), standard (1 second), and high speed (0.5 second). Each time the push operation is performed, low speed, standard, and high speed are selected in order. It Reference numeral 20 is a lever for opening the back cover 21,
Operate when loading the photographic film.

The shutter unit 22 of the continuous shooting camera 11 is shown in FIG. The shutter unit 22 has two screens, one up and down.
Two shutter mechanisms 23 and 24 for continuous shooting for exposing eight frames divided into four columns on the left and right along the sheet feeding direction.
The two films are arranged side by side in the film feeding direction, and these respective parts are incorporated in a thin shutter box including a front lid 25, a partition plate 26, and a case 27.

As shown in FIG. 3, the front plate 25 is provided with 16 circular exposure openings 28a to 28p on the optical axis of the taking lenses 13a to 13p. These openings 28
On the front surface of a to 28p, 16 photographing lenses 13a to 13p are incorporated one by one in a recessed portion. These taking lenses 13a to 13p are fixed to the front plate 25 by two lens holders 29 and 30.

The partition plate 26 has a photographing lens 13a-1.
Sixteen aperture openings 31a to 31p are formed on the optical axis of 3p. These diaphragm openings 31a to 31p also serve as fixed diaphragms and shutter openings, and their inner diameters are the same. Aperture openings 31a to 31d,
Reference numerals 31i to 31l denote shutter openings on the shutter mechanism 23 side, and aperture openings 31e to 31h and 31m to 31p.
Is the shutter opening on the shutter mechanism 24 side.

Eight shutter disks 32 to 39 having the same outer diameter and thickness are rotatably provided on the front surfaces of the aperture openings 31a to 31p. Of these shutter discs 32 to 39, four shutter discs 36, 37, 38, 39 have axes 40.
To 43 are arranged in the upper stage, and eight aperture openings 31i to 31 are arranged.
At a position above the horizontal line passing through the center of p and at a position equidistant from the adjacent pair of aperture openings 31i to 31p, the axes 44 to 4 of the four shutter discs 32 to 35 are formed.
7 is a position below a horizontal line passing through the centers of the eight aperture openings 31a to 31h arranged in the lower stage, and at a position equidistant from the adjacent aperture openings 31a to 31h. Of these shutter disks, four shutter disks 32, 33, 36, 37 are shutter disks on the side of the shutter mechanism 23, and four shutter disks 34, 35, 38, 39 are shutter disks. It is a shutter disk on the mechanism 24 side.

The shutter disks 32 to 39 have axes 40 to 40, respectively.
Substantially fan-shaped openings (hereinafter referred to as “slits”) 32a, 33a, 34a, 35a, 36a, 37 on the circumference having a radius from 47 to the aperture openings 31a to 31p.
One a, 38a, and 39a are formed, respectively. These slits 32a, 33a, 34a, 35
The length of a, 36a, 37a, 38a, 39a (the length of the shutter disk in the radial direction) is equal to or larger than the inner diameters of the aperture openings 31a to 31p. Further, the shutter disks 32 to 39
The outer circumference of the gears 32b, 3 having the same number of teeth over the entire circumference.
3b, 34b, 35b, 36b, 37b, 38b, 39
Gear 3 with b formed and having the same center of rotation in the vertical direction
2b and gear 36b, gears 33b and 37b, gear 34b and gear 38b, and gears 35b and 39b mesh with each other.

As shown in FIG. 4, on the inner wall 27a of the case 27, 16 rectangular exposure openings 48a to 48p are formed on the optical axes of the taking lenses 13a to 13p, and fixed to the back side. Two openings 5 for inserting the motor gears 51 and 52 of the stepping motors 49 and 50
3, 54 are formed respectively. A rotating mechanism, a shielding plate moving mechanism, and an initial position detecting mechanism are incorporated into the inner wall 27a from the front side. The rotation mechanism is a gear train for transmitting the rotations of the stepping motors 49 and 50 to the shutter discs 32 to 39, and includes two stepping motors 49 and 50, motor gears 51 and 52, and a two-stage gear 5.
5, 56. The stepping motors 49 and 50 respectively rotate the shutter disks 32 to 39 twice for the exposure of 16 frames of two screens.

The shield plate moving mechanism includes a stepping motor 4
This is a mechanism for transmitting the rotations of 9, 50 to the switching shield plates 57, 58 via the reciprocating sliding member rotating mechanism and reciprocating these switching shield plates 57, 58 in the horizontal direction, respectively. The mechanism is a motor gear 51,
The crank gear 59 and the switching shield plate 58 are included, and the mechanism on the shutter mechanism 24 side includes the motor gear 52, the crank gear 60, and the switching shield plate 57.

The initial position detecting mechanism includes shutter discs 32 to 32.
39 is a mechanism for detecting two rotations of the motor 39, and the mechanism on the shutter mechanism 23 side is a motor gear 51, a two-stage gear 61, a gear 63, gears with slits 65 and 66, and a photo interrupter (hereinafter referred to as “PI sensor”). From 69 and
The mechanism on the shutter mechanism 24 side includes a motor gear 52, a two-stage gear 62, a gear 64, gears 67 and 68 with slits,
And a PI sensor 70. A finder holding frame 71 is formed integrally with the case 27, and the objective lens 72 is attached to the finder holding frame 71.
And an eyepiece lens 73 are incorporated.

FIG. 5 schematically shows an arrangement of a rotating mechanism, a shield plate moving mechanism, and an initial position detecting mechanism.
As shown in detail in FIGS. 6 and 7, the rotation mechanism of the shutter mechanism 23 includes a large gear 5 in which the motor gear 51 is a two-stage gear 55.
The small gear 55b of the two-stage gear 55 meshes with the gears 36b and 37b of the shutter discs 36 and 37, respectively. As a result, the rotation of the stepping motor 49 causes the slits 36 of the shutter disks 36 and 37 to move.
a and 37a sequentially cross the four aperture openings 31i to 311 on the upper side, and four frames 74e on the upper side of one screen 74
74h are exposed respectively, and at the same time, the slits 32a and 33a of the shutter disks 32 and 33 sequentially cross the four diaphragm openings 31a to 31d on the lower stage side to form one screen 7.
Of the four, the lower four frames 74a to 74d are exposed.

The rotating mechanism of the other shutter mechanism 24 is arranged symmetrically with respect to the rotating mechanism of the shutter mechanism 23, and the slits 38a, 39a of the shutter disks 38, 39 are rotated upward by the rotation of the stepping motor 50. Of the four diaphragm apertures 31m to 31p are sequentially traversed, and at the same time, the slits 34a of the shutter disks 34 and 35,
The reference numeral 35a sequentially traverses the four diaphragm openings 31e to 31h on the lower side to expose eight frames 75a to 75h obtained by dividing one screen 75.

In the shield plate moving mechanism of the shutter mechanism 23, as shown in FIGS. 7 and 8, the crank gear 59 meshes with the small gear 55b, and the crank gear 59 makes two rotations of the shutter discs 32 to 39. The rotation ratio is three rotations. A projecting pin 59 a is formed on the circumference of the crank gear 59. Further, the switching shield plate 58 on the shutter mechanism 24 side is provided so as to be linearly movable in the left-right direction, and an arm 76 extending leftward is integrally formed therewith. A long hole 76a extending in the vertical direction is formed on the tip side of the arm 76, and the protruding pin 59a is engaged with the long hole 76a. Therefore, the amount of movement of the switching shield plate 58 is twice as long as the crank length from the shaft 59b of the crank gear 59 to the protruding pin 59a.

The switching shield plate 58 includes a shutter mechanism 24.
The four aperture openings 58a to 58d that simultaneously expose the four lower aperture rows 31e to 31h and the four apertures 58e to 58h that simultaneously expose the four upper aperture rows 31m to 31p are arranged in the horizontal direction. It is formed by shifting the crank length by twice the crank length, and for each half rotation of the crank gear 59, one of the lower aperture row 31e to 31h and the upper aperture row 31m to 31p is selected. To shield.

The shield plate moving mechanism of the shutter mechanism 24 is also arranged symmetrically with respect to the shield plate moving mechanism of the shutter mechanism 23, and the protruding pin 60a of the crank gear 60 is inserted into the long hole 77a of the arm 77 of the switching shield plate 57. Are engaged, and the switching shield plate 57 has lower opening rows 57a to 57 and upper opening rows 57d to 57h for each half rotation of the crank gear 60.
And the four diaphragm aperture rows 31 on the lower side of the shutter mechanism 23.
a to 31d and four upper aperture diaphragm aperture rows 31i to 31l
Either one of and is shielded as an alternative.

The initial position detecting mechanism of the shutter mechanism 23 is
Gears 65 and 66 with two slits are provided to detect even minute deviations of the shutter disks 32, 33, 36 and 37. These slit gears 65, 66
Is provided with slits 65a and 66a of through holes, which are signal portions, at positions corresponding to the origin position. The rotation of the gear 66 with slits is transmitted from the small gear 55b through the large gear 61a of the two-stage gear 61 and the small gear 61b of the two-stage gear 61, and the rotation is transmitted once for two rotations of the shutter discs 32 to 37. It has a rotation ratio of rotation. Rotation is transmitted from the shutter disc 36 through the gear 63 to the other gear 65 with slits, and has a rotation ratio of three rotations with respect to two revolutions of the shutter discs 32 to 37. These slit gears 65 and 66 are coaxially and rotatably supported, and their rotations are opposite to each other. The transmissive PI sensor 69 has mutual slits 65a and 66.
The overlapping of a is detected, and the shutter disk 3
It is possible to detect the origin position with high accuracy when 2 to 39 rotate twice.

The initial position detecting mechanism of the shutter mechanism 24 is also arranged symmetrically with respect to the initial position detecting mechanism of the shutter mechanism 23, and the shutter discs 34, 35, 38, 39.
In order to detect even a slight angle deviation of the slits, the two gears 67 and 68 with slits are set to a rotation ratio of 3: 1 and the slits 65 are
The PI sensor 69 detects the overlapping of a and 66a.

Such a shutter unit 22 is shown in FIG.
It is attached to the front of the dark box 80 as shown in FIG. Inside the dark box 80, 16 exposure frames 81 are formed, which are divided into 8 rows on the left and right by a partition wall for each optical axis of the taking lenses 13a to 13p and divided into 8 rows on the left and right along the film feeding direction, One screen is composed of two rows vertically and four columns horizontally. The exposure frame 81 is
For example, it has a size of about 10 mm long × 8.3 mm wide,
The circumference is cut a little when printing, so one screen is vertically 2
The size is 0 x 36 mm in width. A battery 82 for supplying power to the stepping motors 49, 50 is arranged below the dark box 80. The battery 82 can be replaced by opening a hinged bottom cover 83 provided on the bottom surface of the camera 11.

As shown in FIG. 10, a cartridge loading chamber 84 and a film winding chamber 85 are arranged on the left and right of the dark box 80. The photo film 86 is wound up by rotating a spool 87 provided in the film winding chamber 85, and pulled out from a cartridge 88 loaded in a cartridge loading chamber 84. A motor 87a for winding the film is built in the spool 87, and the spool 87 is rotated through an internal gear when the film is wound up, and when the film is rewound, the spool 89 is loaded into the cartridge loading chamber 84 through the gear 89 and the film feeding mechanism 90. The rewinding fork 91 provided inside is rotated in the opposite direction.

The film perforation 86a includes:
The sprocket 92 is engaged and rotated by feeding the film. A through-hole slit plate 93 having a large number of through-hole slits radially provided is coaxially fixed to the sprocket 92. The through hole slit plate 93 is photoelectrically detected by the PI sensor 94. The PI sensor 94 sends a pulse every time the through-hole slit passes.

As shown in FIG. 11, when the inside of the continuous shooting camera 11 is viewed from the front, an exposure frame 81 is arranged in a dark box 80 between the cartridge loading chamber 84 and the film winding chamber 85 so that the exposure frame 81 is vertically two-stage film feeding direction. 16 aperture openings 31a to 31p are arranged corresponding to the arrangement of each exposure frame 81. Shutter disk 32 ~
Two sets of four shutter discs 39 arranged in two rows and two columns are arranged in parallel in the film feeding direction, and are located on the dark box 80 and on both sides with the viewfinder objective window 14 interposed therebetween. Each of the stepping motors 49, 50 is arranged in the. Further, under the dark box 80, two batteries 82 for supplying power to the stepping motors 49, 50 are arranged in series with the longitudinal direction thereof being horizontal.

The circuit configuration of the continuous shooting camera 11 is shown in FIG. The shutter unit 22 and the feeding of the photo film are C
It is controlled by the PU 100, and these sequences are written in the program ROM 101.

In the film feeding sequence, when the opening / closing signal 102 of the back cover 21 is obtained after the power switch 17 is turned on, the driving signal of the motor 87a is sent to the motor driver 103. After that, when the PI sensor 94 obtains the number of through-hole slits corresponding to two screens, a stop signal for stopping the driving of the motor 87a is sent to the motor driver 103.

The CPU 100 has a built-in driver for driving the liquid crystal display panel 18, and controls the liquid crystal display panel 18 to display a value updated every two counts every time the film is wound up. Continuous shooting time setting circuit 10
6 is a CPU according to the operation of the continuous shooting time change switch 19.
A mode signal corresponding to the type of continuous shooting time is sent to 100.

The motor drivers 104 and 105 are CPUs.
Receiving the control signal and the clock pulse from 100, the drive pulse is supplied to the stepping motors 49 and 50, respectively. As is well known, since the stepping motors 49 and 50 rotate in proportion to the number of drive pulses supplied, the rotation angle can be determined by the number of drive pulses, and the drive pulse can be changed to a frequency to generate a pulse. The speed of rotation can be controlled by changing the interval. Then, the CPU 100, the motor drivers 103, 104 and 105, and the PI sensors 69 and 70 are supplied with 6V power obtained by connecting two batteries 82 in series. The battery 82 is a lithium battery.

The number of drive pulses supplied from the motor drivers 104 and 105 to the stepping motors 49 and 50 is as shown in FIG.
Each is counted at 08. Then, the CPU 100
The counts of the counters 107 and 108 are monitored, and a control signal is sent to the motor drivers 104 and 105 each time the count value reaches a predetermined value. The motor drivers 104 and 105 change the frequency and the number of poles of the drive pulse supplied to the stepping motors 49 and 50 according to the control signal, and control the speed and the rotation direction of the stepping motors 49 and 50.

The PI sensors 69 and 70 are the shutter disc 3
When detecting 2 rotations of 2 to 37, the CPU 100 outputs a detection signal.
Send to The CPU 100 monitors the detection signals from the PI sensors 69 and 70, and controls the driving of the stepping motors 49 and 50 to stop when the detection signals are obtained.
At this time, the counters 107 and 108 are reset, and then the film winding process is performed.

The photographing sequence is as shown in FIG.
In order to expose time-series images on 16 frames of 2 screens, the stepping motors 49 and 50 are used as shutter disks 32 to 39.
Are alternately driven every one rotation. That is, only the stepping motor 49 is driven first, and the driving of the stepping motor 49 is stopped when the count of the counter reaches the count value for one rotation of the shutter disks 32, 33, 36, 37. During this time, the action of the switching shield plate 57 causes 4
Exposure is sequentially performed only on the frames 74a to 74d.

Next, the stepping motor 50 is driven at substantially the same time as the stop, and the count of the counter is counted by the shutter disk 3.
When the count value for one rotation of 4, 35, 38, 39 is reached, the driving of the stepping motor 50 is stopped. During this period, the four pieces 75a to
The exposure is sequentially performed on 5d. Further, at the same time as the stop, only the stepping motor 49 is driven, and when the detection signal is obtained from the PI sensor 69, the driving of the stepping motor 49 is stopped. During this period, the four shields 74e to 74h are exposed by the action of the switching shield plate 57. Finally, the stepping motor 50 is driven at substantially the same time as the stopping, and the driving of the stepping motor 50 is stopped when a detection signal is obtained from the PI sensor 70. During this period, the exposure of the four frames 75e to 75h is sequentially performed by the action of the switching shield plate 58.

The driving of the stepping motors 49 and 50 is
The pulse interval is controlled stepwise so as to rotate each exposure time at a high speed only at the moment of exposure so that each exposure time becomes 1/250 seconds, for example. That is, each slit 32a-39
Since the rotational positions of the shutter discs 32 to 39 when a crosses the aperture openings 31a to 31p are known, immediately before each exposure, the motor drivers 104 and 105 drive pulses whose frequencies gradually increase. That is, as shown in FIG. 15, a driving pulse whose pulse interval is gradually shortened to T1, T2, and T3 is sent to the stepping motors 49 and 50 to accelerate the rotation of the stepping motors 49 and 50, and immediately after the exposure, the pulse is pulsed. A drive pulse whose intervals gradually increase to T3, T2, T1 is sent to the stepping motors 49, 50,
The rotations of the stepping motors 49 and 50 are decelerated. Then, each exposure interval is made longer than the exposure time by giving a drive pulse having a relatively long pulse interval.

As shown in Table 1, the exposure interval varies depending on the continuous shooting time, and differs for each frame for each continuous shooting time. Then, for example, when the continuous shooting time is set to a low speed, as shown in FIG.
~ 39 rotates to expose time-series images in 16 frames.

[0042]

[Table 1]

Next, the operation of the continuous shooting camera having the above configuration will be described. As shown in FIG. 11, a dark box 80 is formed between the cartridge loading chamber 84 and the film winding chamber 85. The shutter unit 22 is attached to the front surface of the dark box 80. In this shutter unit 22, two shutter mechanisms 23 and 24 are arranged side by side in the film feeding direction, and a shutter in which two shutter columns 32 to 39 and two columns in two rows and four columns in total are set as one set is used. Disk 32,3
3, 36, 37 and shutter disks 34, 35, 38, 39
And 2 sets are arranged side by side along the film feeding direction.

These shutter disks 32 to 39 have slits 32a, 33a, 34a, 35a and 36, respectively.
a, 37a, 38a, 39a only, and each slit 32a, 33a, 34a, 35a, 36.
a, 37a, 38a, 39a, aperture openings 31a to 31p
Since the exposure is performed across the aperture pair of the adjacent pair on the upper side or the lower side of the shutter disks 32 to 3,
The diameter of 9 can be reduced, and the space for arranging these shutter disks 32 to 39 can be made compact in the vertical and horizontal directions.

Since the dark box 80 is smaller in vertical direction than the size in which two vertical and horizontal sizes and a full size (24 × 36 mm) are arranged in the film feeding direction, the cartridge loading chamber 84 and the film winding Dark box 80 between chamber 85
Two stepping motors 49 and 50 can be arranged side by side in the film feeding direction in the upper space by utilizing the space vacated above and below, and two batteries 82 are serially arranged in the lower space with their longitudinal directions lying side by side. Can be placed. This makes it possible to reduce the size of the camera body in the vertical and horizontal directions.

The initial state of the shutter unit 22 is shown in FIG.
As shown in FIG. 7, the shutter disks 32, 36, 34, 38
Slits 32a, 36a, 34a, 38a of each axis 4
It is located on the left side of the horizontal line passing through the centers of 4, 40, 46, 42, and also the shutter discs 33, 37, 35, 3
The slits 33a, 37a, 35a, 39a of 9 are in a position displaced by 180 ° in the circumferential direction, and the aperture openings 31a-31p are shielded by the shutter disks 32-39. The slit gears 65 and 66 of the shutter mechanism 23 and the slit gears 67 and 68 of the shutter mechanism 24 are the slits 65a, 66a and 67, respectively.
a and 68a are stopped in a state of being overlapped with each other at a position above a vertical line passing through the rotation axis.

In the initial state of the switching shield plate 57, as shown in FIG. 8, the openings 57a to 57d are the aperture openings 31a to 31.
d is exposed and the openings 51e to 51h are the diaphragm openings 31i to 3h.
1l is shielded. Further, in the initial state of the switching shield plate 58, the openings 58a to 58d shield the diaphragm openings 31e to 31h, and the openings 58e to 58d form the diaphragm openings 31m to 31p.
Is exposed.

After turning on the power switch 17, the photographer looks at the series of movements of the sports subject, and how long it is appropriate to capture the movements of the subject.
In addition, it is determined when the shutter release timing is to be performed, and the continuous shooting time change switch 19 is operated to match the intended continuous shooting time.

For photographing, as shown in FIG. 18, the subject performs takeback and at the same time operates the continuous shooting release button 15. As a result, the stepping motor 49 starts driving, the motor gear 51 rotates counterclockwise as shown in FIG. 19, and the shutter disc 3 is rotated through the two-step gear 55.
2 and 33 rotate clockwise, and shutter disks 36 and 37 rotate counterclockwise, respectively. The rotation at this time controls the driving of the stepping motor 49 so that the exposure interval is different from the exposure time. Then, the openings 57a to 57d of the switching shield plate 57 have the aperture openings 31a to 3d.
200ms after the release because 1d is exposed
After that, the slit 32a of the shutter disk 32 is closed by the aperture opening 31.
The first exposure is performed on the frame 74a across the line a.

At this time, the opening 57e of the switching shield plate 57
Since ~ 57h shields the diaphragm openings 31i-31l, exposure is not performed in these diaphragm openings 31i-31l. Further, as shown in FIG. 20, since the crank gear 59 rotates counterclockwise, the switching shield plate 58
Moves to the left and slightly exposes the aperture openings 31e to 31h at the openings 58a to 58d, but since the stepping motor 50 on the shutter mechanism 24 side is not driven, the aperture openings 31e to 31h and the aperture opening 31m. No exposure is performed at .about.31p. Further, at this time, the slit gear 66 is in a state of being rotated to a position of a half angle with respect to the rotation angle of the shutter discs 32, 33, 36, 37. 1.5 for the rotated angle of 32, 33, 36, 37
It has been rotated to the double angle position.

100 ms after the first exposure, the slit 32a crosses the aperture opening 31b and the frame 74b.
The second exposure, and 100 ms after this, the slit 33a of the shutter disk 33 traverses the aperture opening 31c and the third exposure on the top 74c.
After ms, the slit 33a crosses the aperture opening 31d to perform the fourth exposure on the frame 74d.

After that, when the count of the counter 107 reaches the count value for one rotation of the shutter disks 32, 33, 36, 37, the driving of the stepping motor 49 is stopped as shown in FIG. At this time, the gear with slit 66 is in a state of a half rotation from the initial position, and the gear with slit 65 is in a state of rotating 1.5 times from the initial position. Further, as shown in FIG. 22, since the crank gear 59 rotates 1.5 times from the initial position, the openings 58a to 58d of the switching shield plate 58 completely expose the aperture openings 31e to 31h, and the openings 58e to 58h. Is in a state of completely blocking the aperture openings 31m to 31p.

As shown in FIG. 23, the stepping motor 50 is driven at substantially the same time as the stepping motor 49 is stopped. The motor gear 52 rotates counterclockwise, the shutter disks 34, 35 rotate clockwise, and the shutter disks 38, 39 rotate counterclockwise simultaneously via the two-stage gear 56. The drive of the stepping motor 50 is controlled so that the rotation at this time also has an exposure interval different from the exposure time. Then, the opening 58a of the switching shield plate 58-
Since 58d exposes the aperture openings 31e to 31h,
100 ms after the fourth exposure, the slit 34a of the shutter disk 34 crosses the aperture opening 31e, and the frame 75a is exposed for the fifth time.

100 ms after the fifth exposure is performed, the slit 34a crosses the diaphragm opening 31f and crosses the frame 74b.
The sixth exposure, and 100 ms after this, the slit 33a of the shutter disk 33 crosses the aperture opening 31c and the seventh exposure is performed on the top 74c.
After ms, the slit 33a crosses the aperture opening 31d and exposes the top 74d for the eighth time.

After that, the count of the counter is counted by the shutter disk 3.
When the count value for one rotation of 4, 35, 38, 39 is reached, as shown in FIG.
The drive of 0 is stopped. At this time, the gear with slit 6
No. 6 is a half-turned state from the initial position, and the slitted gear 65 is a half-turned state from the initial position. Further, as shown in FIG. 25, since the crank gear 60 rotates 1.5 times from the initial position, the openings 57e to 57h of the switching shield plate 57 completely expose the aperture openings 31i to 31l, and the openings 57a to 57d. Completely shields the aperture openings 31a to 31d.

At about the same time as the stepping motor 50 is stopped, the driving of the stepping motor 49 is started again as shown in FIG. This gives 100ms from the 8th exposure
After that, the slit 36a of the shutter disk 36 is closed by the aperture opening 31.
i, and the openings 57e to 57h of the switching shield plate 57 expose the diaphragm openings 31i to 31l.
e is exposed for the ninth time.

100 ms after the ninth exposure, the slit 36a crosses the diaphragm opening 31j and the frame 74f.
10th exposure, and 100 ms later, the slit 37a of the shutter disk 37 traverses the aperture opening 31k and the eleventh exposure to the frame 74g.
After 0 ms, the slit 37a crosses the aperture opening 31l to perform the twelfth exposure on the frame 74h. Then, as shown in FIG. 27, when the shutter disks 32, 33, 36, 37 reach two revolutions, the slit gear 65 makes three revolutions and the slit gear 66 makes one revolution. The slits 65a and 66a of No. 1 overlap exactly at the initial position, and PI
A detection signal is obtained from the sensor 69. As a result, the driving of the stepping motor 49 is stopped.

At this time, since the crank gear 59 has rotated three times from the initial position, as shown in FIG. 28, the openings 58e to 58h of the switching shield plate 58 have aperture openings 31m to 31m.
p is completely exposed, and the openings 58a to 58d are the aperture openings 31.
e to 31h are completely shielded.

Again, the stepping motor 50 is driven substantially at the same time as the stepping motor 49 is stopped, and the openings 58e to 58h of the switching shield plate 58 are changed to the aperture openings 31m to 31p.
As shown in FIG. 29, the slit 3 of the shutter disk 38 is exposed 100 ms after the 12th exposure.
8a crosses the aperture opening 31m, and the frame 75e is exposed for the 13th time.

After the 13th exposure, 1
After 00 ms, the slit 38a crosses the aperture opening 31n, and the frame 75f is exposed for the 14th time.
After s, the slit 39a of the shutter disk 39 is closed by the aperture opening 3
The frame 74g is traversed 1o and the frame 74g is exposed for the 15th time, and 300 ms later, the slit 39a opens the aperture 31p.
The 16th exposure is performed on the frame 74h. afterwards,
As shown in FIG. 30, the shutter disks 34, 35, 38, 3
When 9 reaches 2 revolutions, the gear 68 with slit turns to 3
Since the rotation and the slitting gear 67 make one rotation, the slits 67a and 68a overlap each other at the initial position, and a detection signal is obtained from the PI sensor 70. As a result, the driving of the stepping motor 50 is stopped. Further, at this time, since the crank gear 60 has rotated three times from the initial position, the openings 57 a to 57 d of the switching shield plate 57.
Has completely exposed the aperture openings 31a to 31d, and returns to the initial state shown in FIG.

When the detection signals are obtained from the PI sensors 69 and 70, the CPU 100 drives the film feeding motor 87a to wind up the photographic film 86,
The number of passing slits obtained from the PI sensor 94 is counted, and when the count value for two screens is reached, the driving of the motor 87a is stopped. As a result, two new screens are set in each exposure frame 81.

When the motor 87a is loaded during the film winding for two screens as described above, the motor 87a is detected and the photographic film 86 is entirely wound. The exposed and exposed photographic film 86 is stored in the cartridge 88. The case back 21 is opened, the cartridge 88 is taken out, and this is submitted to the photo lab. At the photo lab, the conventional processing is performed, and printing is performed for each screen from the developed photo film 86, and 89 ×
A print photograph with a high-definition ratio of 158 mm is produced. Then, by arranging the obtained two print photographs side by side, it is possible to observe 16 still images in which the movement of the subject has stopped at each moment.

The continuous shooting camera described in the above embodiment has a shutter mechanism 23 for sequentially exposing time-sequential images in eight frames.
Although two 24 are arranged along the film feeding direction to expose 16 frames, the present invention is not limited to this, and the present invention is not limited to this, and an 8-frame continuous camera having only one shutter mechanism is also possible. Also, even if three or more shutter mechanisms are arranged side by side to form a continuous shooting camera of 24 frames or more, as described in the prior art, a pair of slits provided one for each shutter disk is used to adjoin on the upper or lower side. The diameter of the shutter disc is reduced because it is designed to cover the taking lens, and the shutter discs having a smaller diameter are arranged in two rows and two columns, thereby saving the size of the shutter mechanism in the vertical and horizontal directions. It goes without saying that the same effect can be obtained because it is possible.

[0064]

As described above, according to the present invention, the shutter discs are provided with one slit for covering each pair of adjacent photographing lenses on the upper or lower side. Since the diameters of the shutter discs are small and the diameters of the shutter discs are small and arranged in two rows and two columns, the space for arranging the shutter discs can be saved in the vertical and horizontal directions. Further, since the battery is arranged below the exposure frame with the longitudinal direction of the battery being horizontal, and the motor is arranged above the exposure frame, the above-mentioned Japanese Patent Laid-Open No. 5-7 has been described.
As compared with the continuous shooting camera disclosed in Japanese Patent No. 2624, the size of the camera body in the lateral direction can be saved and the compactness can be improved.

Further, a continuous shooting camera which arranges a plurality of shutter mechanisms to expose time-series images on 16 or more frames is disclosed in Japanese Patent Laid-Open No. 5-45697 or Japanese Patent Laid-Open No. 5-726.
Compared with the continuous shooting camera described in Japanese Patent No. 24, which improves exposure to 16 or more frames, the diameter of the shutter disk can be reduced and the exposure frame Since the motor and the battery are respectively arranged in the upper and lower spaces, the size of the camera body in the vertical and horizontal directions can be saved and the camera body can be made compact.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of a continuous shooting camera.

FIG. 2 is an exploded perspective view of a shutter unit.

FIG. 3 is an exploded perspective view showing essential parts such as a photographing lens and a shutter disk.

FIG. 4 is an exploded perspective view showing essential parts such as a switching shield plate and a stepping motor.

FIG. 5 is an explanatory diagram showing an outline of a shutter unit.

FIG. 6 is an operation explanatory view showing an outline of a rotation mechanism that drives a shutter disk.

FIG. 7 is a perspective view showing a main part of a shutter mechanism.

FIG. 8 is an operation explanatory view showing the outline of a shield plate switching mechanism.

FIG. 9 is a vertical sectional view of a continuous shooting camera.

FIG. 10 is a schematic explanatory view showing a film winding mechanism of the continuous shooting camera.

FIG. 11 is a front view showing an outline of a main part of a continuous shooting camera.

FIG. 12 is a block diagram showing an outline of an electrical configuration of a continuous shooting camera.

FIG. 13 is a block diagram schematically showing a counter that counts the number of drive pulses.

FIG. 14 is a flowchart showing an outline of a shooting program.

FIG. 15 is a timing chart showing how the shutter disk rotates during exposure with respect to the pulse interval of the drive pulse supplied to the stepping motor.

FIG. 16 is a timing chart showing a state of rotation of the shutter disk when 16 frames are continuously shot while the continuous shooting time is set low.

FIG. 17 is an operation explanatory view showing an initial state of the rotation mechanism and the initial position detection mechanism.

FIG. 18 is a timing chart showing the relationship between the golf swing and the exposure interval for each shooting mode.

FIG. 19 is an operation explanatory view of the shutter unit showing a state where the exposure is performed on the first frame.

20 is an operation explanatory view of the shield plate switching mechanism in the state shown in FIG.

FIG. 21 is an explanatory diagram of the operation of the shutter unit when performing exposure on four frames.

FIG. 22 is an operation explanatory view of the shield plate switching mechanism in the state shown in FIG. 20.

FIG. 23 is an explanatory diagram of the operation of the shutter unit when the exposure of the fifth frame is performed.

FIG. 24 is an operation explanatory view of the shutter unit when the exposure of the eighth frame is performed.

FIG. 25 is an operation explanatory view of the shield plate switching mechanism in the state shown in FIG. 23.

FIG. 26 is a diagram for explaining the operation of the shutter unit when the exposure for the ninth frame is performed.

FIG. 27 is an operation explanatory view of the shutter unit when the 12th frame is exposed.

FIG. 28 is an operation explanatory view of the shield plate switching mechanism in the state shown in FIG. 26.

FIG. 29 is an operation explanatory view of the shutter unit when the exposure of the 13th frame is performed.

FIG. 30 is an operation explanatory view of the shutter unit when the exposure for the 16th frame is performed.

[Explanation of symbols]

 11 Continuous Shooting Camera 15 Shutter Button 22 Shutter Unit 23, 24 Shutter Mechanism 13 Photographic Lens 32-39 Shutter Disc 31 Aperture Opening 49,50 Stepping Motor 74,75 Screen 74a-74h, 75a-75h Frame 80 Dark Box 81 Exposure Frame 82 Battery 83 Bottom lid

Claims (2)

[Claims] 1. A cartridge loading chamber and a film winding chamber, and a total of eight exposure frames in four rows are formed in an array between the two chambers in the upper and lower two-stage film feeding direction, and the exposure frame In a continuous shooting camera having a camera body in which eight photographing lenses are arranged and attached to the front surface corresponding to the arrangement, four shutter disks are arranged in two rows of two stages and incorporated into the camera body, One slit is provided on each disc, and the rotation of these shutter discs guides the light flux of the pair of adjacent photographing lenses on the upper or lower side of the eight photographing lenses to the exposure frame sequentially through each slit. A motor for driving the shutter disk is placed above the exposure frame, and a battery for supplying power to the motor is placed below the exposure frame in parallel with the film feeding direction. Placed in A continuous shooting camera characterized by that. 2. A Patrone loading chamber and a film winding chamber, and between these chambers, 4 × N (N is a natural number) rows of 8 × N exposure frames are arranged in the upper and lower two-stage film feeding direction. 8 × N corresponding to the arrangement of the exposure frame
A continuous shooting camera having a camera body in which a plurality of photographing lenses are arranged on the front surface, and a set of four shutter discs each having one slit formed in two stages in two rows and N sets of film feeds. Are arranged along the direction and incorporated in the camera body, and by rotating these shutter disks, the light fluxes of a pair of adjacent photographing lenses on the upper or lower side of the photographing lenses are sequentially exposed through one slit. A motor for rotating the one set of four shutter disks out of the shutter disks is arranged on the exposure frame along the film feeding direction while being configured to guide the film to the frame for photographing. A continuous shooting camera, in which a plurality of batteries are arranged in parallel and batteries for supplying power to the N motors are arranged below the exposure frame in parallel with a film feeding direction.