JPH10170997A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operability of a camera by executing initial stage feeding and rewinding with the rotation of a first driving member (rotary member). SOLUTION: A cartridge cover 38 provided in the lower opening part 36 of a cartridge chamber 32 is constituted of a cover main body 46, a crank lever 48 constituting the rotary member, a rotary body 50, a spring 52 and a rotary disk 54. When a key 42 is deviated from the key slot of a cartridge spool, at the time of closing the cartridge cover 38, the key 42 is pushed by the cartridge spool and the rotary disk 54 escapes downward against the energizing force of the spring 52. But when the crank lever 48 is turned a little, the key 42 is rotated with the rotary body 50, the spring 52 and the rotary disk 54, to be engaged with the key slot at a position corresponding to the key slot of the cartridge spool. When the crank lever 48 is turned in this state, the cartridge spool is rotated to feed a photographic film from a cartridge main body or rewind the film.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera, and more particularly, to a camera using a film cartridge stored in a cartridge body wound around a spool up to the end of a photographic film.

[0002]

2. Description of the Related Art Recently, a photographing screen size is 17 mm in length.
A film cartridge of a new photographic system in which a photographic film of 30 mm width is stored in a film cartridge is commercially available. In this film cartridge, all of the film is wrapped inside the cartridge except when shooting, so before loading it into the camera and taking a film, the film leader must be extruded from the cartridge in advance and set on the take-up shaft. It is necessary to create a wound state.

A camera provided with an inexpensive manual film feeding mechanism without using an electric motor for such a cartridge is disclosed as a manual camera in Japanese Patent Application Laid-Open No. 8-240845. In this camera, a first one-way clutch is provided on a shaft engaged with a cartridge spool, a second one-way clutch is provided on a take-up spool, and the first one-way clutch and the second one-way clutch are provided. Are connected via a power transmission mechanism such as a belt. In the camera, a driving force transmission mechanism is configured so that the rotation speed of the take-up spool is faster than the speed of the photographic film sent out from the film cartridge.

[0004]

In the above-mentioned camera, when the film is fed out, the photographic film is fed out of the film cartridge by manually rotating the first one-way clutch in the forward direction with the winding knob, and is wound on the take-up spool. Let it stick. The initial transfer before this winding is
When the one-way clutch is coupled to the cartridge spool and delivers the film, while the film leader reaches the winding shaft rotating at a higher speed, the film is pulled by the winding shaft and the cartridge spool is moved to the first primary position. It is driven by the action of the direction clutch. In this way, the driving force can be switched naturally without the need to specifically switch the driving force between the two axes.

However, in the mechanism disclosed in this publication, both the initial feed and the winding of one frame of the film after the completion of the initial feed are all performed by a common hoisting dial. This hoisting dial is applied to the surface of the thumb and applies a rotating force little by little. At the time of initial feeding, a considerable number of rotations is required, and there is a disadvantage that operation is very difficult.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is directed to a camera which uses a film cartridge which is wound around a spool up to the leading end of a photographic film in a cartridge body, and is provided with an initial feed at the time of loading. It is an object of the present invention to provide a camera having a simple structure that can improve operability, although manual advance of one frame during shooting is performed.

[0007]

According to the present invention, in order to achieve the above object, a film cartridge housed in a cartridge body wound around a spool up to the tip of a photographic film is loaded, and the spool of the film cartridge is loaded. A first drive member for manually rotating the spool drive shaft, the spool drive shaft being engaged with the spool drive shaft, and a winding shaft for winding the photographic film fed from the film cartridge. By transmitting the rotational force of the shaft to the take-up shaft and increasing the rotational speed of the spool drive shaft and transmitting it to the take-up shaft, the rotational speed of the take-up shaft is higher than the rotational speed of the spool drive shaft. A driving force transmitting mechanism, and a rotational force of the spool driving shaft can be transmitted to the driving force transmitting mechanism between the spool driving shaft and the driving force transmitting mechanism. When a rotational force is transmitted from the winding shaft to the spool drive shaft via a drive force transmitting mechanism, a planetary gear mechanism that blocks transmission of the rotational force to the spool drive shaft, and the drive force transmitting mechanism. A second drive member that is connected to the take-up shaft so as to be capable of transmitting power, and is manually slid to rotate the take-up shaft by one frame of the photo film. By rotating the spool drive shaft, the photographic film is sent out from the film cartridge and wound around the take-up shaft, and the one-film winding member is operated to wind up the photographic film by one frame. And

According to the first aspect of the present invention, when the film cartridge is loaded in the camera, the spool of the film cartridge is engaged with the spool drive shaft, and then the rotating member is manually rotated, the spool drive shaft is used. The spool is rotated and the photo film is fed from the cartridge body. Then, when the leading end of the photographic film approaches the winding shaft, the speed of the winding shaft is increased by the driving force transmission mechanism, so that the photographic film is wound up under tension. As a result, it is possible to prevent the winding of the photographic film on the winding shaft. On the other hand, since the rotational force of the winding shaft is cut off by the planetary gear mechanism, it is not transmitted to the spool drive shaft. This can prevent adverse effects on the photographic film and the driving force transmission mechanism due to excessive tension.

According to the second aspect of the present invention, when the film cartridge is loaded into the camera, the spool of the film cartridge is engaged with the spool drive shaft, and then the first drive member is manually rotated, the The spool is rotated by the drive shaft, and the photographic film is fed from the cartridge body. When the leading end of the photographic film approaches the take-up shaft, the leading end of the photographic film is wound around the take-up shaft because the take-up shaft is rotated via the driving force transmission mechanism. As a result, the initial winding of the photographic film can be manually performed, and the initial feed and rewind can be performed by rotating the first driving member, so that the operability is improved as compared with the conventional hoist dial. I do. Then, the second drive member is slid to rotate the take-up shaft by one frame to wind up the photographic film by one frame, so that the operability is improved as compared with the conventional hoist dial. .

When the photographic film is wound around the take-up shaft, the speed of the take-up shaft is increased by the driving force transmitting mechanism, so that the photographic film is wound up under tension. As a result, it is possible to prevent the winding of the photographic film on the winding shaft. On the other hand, the rotational force of the winding shaft is
Since it is shut off by the planetary gear mechanism, it is not transmitted to the spool drive shaft. This can prevent adverse effects on the photographic film and the driving force transmission mechanism due to excessive tension.

According to a third aspect of the present invention, a power transmission structure between the spool drive shaft and the rotary member is simplified by providing a spool drive shaft inside the cartridge lid and providing a rotary member outside the cartridge lid. It is. When the cartridge lid is closed, the spool drive shaft engages with the spool of the film cartridge, and when the rotating member is rotated, the spool drive shaft is rotated and the spool is rotated, whereby the photographic film is sent out from the cartridge body. . In the present invention, operability is improved by initial feeding and rewinding by rotation of the rotating member.
And the rewind speed becomes faster.

According to a fourth aspect of the present invention, the rotary member is provided so as to be housed in a concave portion of the cartridge lid. Therefore, when the rotating member is protruded from the concave portion when used, the operation becomes easy, and when the rotating member is stored in the concave portion when not in use,
Since the camera is not exposed to the outside, the external design of the camera can be improved. According to a fifth aspect of the present invention, the opening of the cartridge lid is regulated and released by the engaging member provided on the rotating member and the regulating member provided on the camera body. That is, the regulating member is provided at a position where the regulation of the engaging member is released only when the rotating position of the rotating member is at the position where the photo film is stored in the cartridge body up to the leading end. Thus, the photographic film is not exposed even when the cartridge lid is opened. Also, when the rotating position of the rotating member is not at the above-mentioned position, that is, when the photographic film is protruding from the cartridge body, the cartridge cover is not opened because the engaging member is engaged with the regulating member.

The invention according to claim 6 relates to a mechanism for opening and closing a light-shielding lid of a film cartridge. The light-shielding lid is engaged with the engaging member of the light-shielding lid opening / closing mechanism when the camera is loaded. When the light-shielding lid opening / closing mechanism closes the cartridge lid, the engaging member is driven by a driving member that operates in conjunction with the operation of the cartridge lid to open the light-shielding lid. And
When the cartridge lid is opened, the engagement member is driven by the driving member, and the light shielding lid is closed. Thus, the opening and closing of the light shielding cover can be automatically and easily performed.

The invention according to claim 7 relates to the winding of one frame of a photographic film. When the one-frame winding member is manually operated, the operation is transmitted to the winding shaft via the driving force transmission mechanism, and the winding shaft rotates by one frame. As a result, one-frame winding can be performed manually. by the way,
When the spool drive shaft and the one-frame winding member are connected via a driving force transmission mechanism, the operation of the spool drive shaft is transmitted to the one-frame winding member, which adversely affects the operation of the camera. There is. Therefore, a mechanism for shutting off the power from the spool drive shaft to the one-frame winding member is required.

According to an eighth aspect of the present invention, the transmission of the rotational force of the spool drive shaft to the one-frame winding member is blocked by the planetary gear mechanism. That is, the planetary gear mechanism is provided between the one-frame winding member and the driving force transmission mechanism,
When the rotational force of the spool drive shaft is transmitted from the driving force transmission mechanism, the planetary gear of the planetary gear mechanism escapes from the one-frame winding member. Thereby, the power by the spool drive shaft can be cut off from the one-frame winding member.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the camera according to the present invention will be described below in detail with reference to the accompanying drawings. FIG.
FIG. 2 is a front view showing the appearance of a camera to which the present invention is applied, and FIG.
Is a rear view of the camera. FIG. 10 is a perspective view of a film cartridge loaded in the camera.

On the end face 1A of the cartridge main body 1 of the film cartridge shown in FIG. 10, four different types of marks 2, 3, 4, and 5 indicating the use status of the photographic film stored in the cartridge main body 1 are concentric. At predetermined intervals. These marks 2 to 5 are formed as openings on the end face 1 </ b> A of the cartridge body 1. Plates 6 are provided inside the marks (openings) 2 to 5 as shown by broken lines in FIG. The plate 6 is white and is formed in a fan shape of about 60 to 90 ° so as to be located in any one of the openings 2 to 5, and is provided rotatably about the cartridge spool 7. I have.

If the white plate 6 is located, for example, in the opening 2 as a camera or a film maker's intention, the opening 2 is displayed in white and a film cartridge containing an unused photographic film is considered. I understand it. When the white plate 6 is located in the opening 3, the opening 3 is displayed in white so that the user can recognize that the film cartridge is in the middle of photographing (partially exposed). Further, when the white plate 6 is located in the opening 4 or the opening 5, it can be recognized as a photographed film cartridge or a developed film cartridge.

Further, a slit-shaped film outlet (not shown) is formed in the cartridge body 1, and a light-shielding cover is rotatably provided inside the film outlet. The light-shielding lid is provided in parallel with the cartridge spool 7, and has a key groove 9 at one end 8. The key groove 9 is exposed on the end face of the cartridge main body 1, and is turned between an open position and a closed position by being turned by being engaged with a light-shielding cover opening / closing key from the outside. . On the other hand, one end of the cartridge cartridge spool 7 is also exposed on the end face of the cartridge main body 1, and a key groove 10 is formed at the end.
The key groove 10 is engaged with a key formed on a spool drive shaft on the camera side, and the rotation of the spool drive shaft causes the photographic film to be fed and rewinded.

As shown in FIG. 12, the photographic film F sent out from the cartridge body 1 has a plurality of photographic frames 11 as shown in FIG.
, 11b are continuously formed in a belt shape, and the rear end 12 is fixed to the cartridge spool 7. The photo film F is formed with perforations 13a, 13b... Indicating the leading end position of each photographing frame and perforations 14a,.

In FIG. 1, a photographing lens 22 is provided in the center of the front surface of the camera body 20, and a shutter (not shown) is incorporated on the optical axis of the photographing lens 22 inside the camera body 20. A flash light emitting unit 24 is provided at the upper right corner of the taking lens 22, and a finder 26 is provided on the left side of the flash light emitting unit 24 in the drawing. Further, a shutter release button 28 is provided at a left corner of the upper surface of the camera body 22. Further, a slide lever (second driving member, member for winding up one frame) 30 for winding up one frame is provided at the upper right corner of the rear surface shown in FIG. The slide lever 30 is a manual type. When the slide lever 30 is slid in the direction of the arrow in the drawing, the photographic film is wound up on the winding shaft by one frame.

FIG. 3 is a perspective view of the camera body 20 viewed from the front, and FIG. 2 is a perspective view of the camera body 20 viewed from the top. As shown in FIG. 3, a cartridge chamber 32 is formed on the left side of the camera body 10.
A take-up shaft 34 is rotatably provided on the right side of. A cartridge lid 38 is provided at the lower opening 36 of the cartridge chamber 32 via a shaft 40 so as to be freely opened and closed.
As shown in FIG. 5, the film cartridge shown in FIG.
The cartridge lid 38 is opened and loaded into the cartridge chamber 32. When the cartridge lid 38 is closed, the key 42 (spool drive shaft) on the cartridge lid 38 engages with the key groove 10 on the lower end side of the cartridge cartridge spool 7 and the upper end of the cartridge cartridge spool 7 Keyway (not shown)
Then, the key 44 shown in FIG. 3 is engaged.

The cartridge lid 38 includes a lid main body 46, a crank lever 48, a rotary member 50, a spring 52, and a rotary plate 54 which constitute a rotary member (first driving member).
It is composed of The crank lever 48 has a base end rotatably connected to a rotating body 50 via a shaft 56. When not in use, as shown by a solid line in FIG.
And immersed in a concave portion 58 formed between the rotating body 50 and
At the time of use, it is located at a position protruding from the concave portion 58 as shown by a two-dot chain line in the drawing. A knob 60 is provided at the tip of the crank lever 48.

The rotating body 50 is attached to the inner peripheral surface of the cylindrical lid body 46 in close contact with the rotating body 50 and is rotatably provided. The rotating body 50 includes the spring 52
The rotary plate 54 is connected to the rotary plate 54 via a key, and the key 42 is formed so as to protrude above the center of rotation of the rotary plate 54. Therefore, when the cartridge lid 38 is closed, the key 42
Is displaced with respect to the key groove 10 of the cartridge spool 7, the key 42 is pushed by the cartridge spool 7, and the rotating plate 54 escapes downward against the urging force of the spring 52. When the key 42 is slightly rotated, the key 42 is rotated by the rotating body 50, the spring 52,
The cartridge spool 7 is rotated via the rotating plate 54 and engages with the key groove 10 at a position matching the key groove 10 of the cartridge spool 7. When the crank lever 48 is rotated in this state,
By rotating the cartridge spool 7, the photographic film is sent out from the cartridge body 1 or rewound.

When the key 44 is rotated in conjunction with the rotation of the cartridge spool 7, the gear 62 on which the key 44 is formed is rotated. This gear 62 has two gears, as will be described in more detail with reference to FIG.
Since it is connected to the gear 70 of the winding shaft 34 (see FIG. 3) via a driving force transmission mechanism 68 including two planetary gear mechanisms 64 and 66 and a plurality of gears, the rotation is linked to the rotation of the crank lever 48. The winding shaft 34 is rotated.

Since the film cartridge is provided with a light-shielding cover 72 shown by a broken line in FIG. 5 at the film sending port, a mechanism for opening the light-shielding cover 72 when the photographic film is sent out is required. 6 and 7 show an opening and closing mechanism of the light-shielding lid 72. FIG. 6 is a view showing a state in which the cartridge body 1 is mounted on the camera and a key (engaging member) 74 on the opening / closing mechanism side is engaged with the key groove 9 of the light shielding cover 72. FIG. FIG. 7 is a diagram illustrating a state in which a cartridge lid is closed and a light shielding lid 72 is opened.

As shown in FIGS. 6 and 7, the opening / closing mechanism includes a key 74, three gears 76, 78, 80, a spindle 8
2 and a spring 84. The key 74 is formed integrally with a gear 76, and the gear 76 is connected to the upper gear 86 of the spindle 82 via gears 78 and 80.
It is connected to. On the outer peripheral surface of the spindle 82,
A spiral groove 88 is formed, and this groove 88 is supported by projections 90, 90 formed on the camera side. The spindle 82 is urged downward by the urging force of the spring 84. As shown in FIG. 7, the lower end 92 of the spindle 82 projects to the closed position of the cartridge lid 38. When the cartridge lid 38 is closed, the lower end 92 is pushed by the cartridge lid 38 to resist the urging force of the spring 84. The ascending movement is converted into rotational force. Since the groove 88 is supported by the protrusions 90, 90, the spindle 82
Is rotated, the keys 74 are moved to the gears 86, 80, 78, 7
6, the light-shielding lid 72 is opened and closed. When the cartridge lid 38 is opened, the spindle 82 is pivotally returned to the original position by the urging force of the spring 84, and at this time, the light shielding lid 72 is closed. Thus, the light-shielding lid 72 is opened and closed in conjunction with the opening and closing operation of the cartridge lid 38.

On the other hand, if the photo film is exposed from the cartridge body 1 and the photo film is exposed when the photo film is opened, the photo film is exposed. A mechanism is required. Therefore, in this camera, as shown in FIGS. 5 and 8, the cartridge is formed by a key groove (engaging member) 55 formed on the rotating plate 54 on the cartridge lid 38 side and a key (regulating member) 94 formed on the camera side. The opening and closing of the lid 38 are regulated and released. The state in which the photo film is stored in the cartridge body 1 up to the leading end is recognized by a film counter (not shown) or the like.

The key groove 55 is released from the regulation by the key 94 only when the rotating position of the rotating plate 54 is at the position where the mark 96 and the mark 98 are aligned with the photo film stored in the cartridge body 1 up to the leading end. It is formed in the position where it is done. Thus, the photographic film is not exposed even when the cartridge cover 38 is opened. When the rotating position of the rotating plate 54 is not at the above-mentioned position, the keyway 55 is engaged with the key 94, so that the cartridge lid 1 is not opened. The mark 96 is formed on the main body 46 side of the cartridge lid 38, and the mark 98 is formed on the rotating body 50 side.

Referring to FIGS. 3 and 4, the feeding drive system for the photographic film will be described. The gear 62 is a gear that rotates in conjunction with the cartridge spool 7, and meshes with the first sun gear 100 of the first planetary gear mechanism 64. A first planetary gear 102 is meshed with the first sun gear 100, and the respective rotating shafts 101, 103
Are connected by a connection arm 63. Therefore, when the rotational force in the hoisting direction (solid line direction) is transmitted from the gear 62 via the sun gear 100, the planetary gear 102 revolves counterclockwise around the sun gear 100 and rewinds (dashed line). When the rotational force of (direction) is transmitted, it revolves clockwise around the sun gear 100.

A second sun gear 104 of the second planetary gear mechanism 66 is provided at a position where the planetary gear 102 revolves in the winding direction. A second planetary gear 106 is meshed with the second sun gear 104, and each of the rotating shafts 105,
107 are connected by a connecting arm 67. Also, the second sun gear 104 and the planetary gear 106
Since the planetary gears 106 are connected via the torsion coil springs 108, the planetary gears 106 are urged clockwise around the sun gear 104.

The sun gear 104 includes gears 110, 1
It is connected to the gear 70 of the winding shaft 34 via 12, 114, 116, 118. Therefore, when the gear 62 is rotated in the winding direction (solid line direction), the winding shaft 34 is rotated in the winding direction. The rotation speed of the gear 62 (the rotation speed of the cartridge spool 7) is
Since the gears 4 and 116 are provided coaxially with different gear diameters so as to be a speed increasing mechanism, the winding speed of the winding shaft 34 is higher than the sending speed of the photographic film from the film cartridge.

In FIG. 4, a rack 120 and a toothless portion 122 are formed on the slide lever 30 for winding up one frame. In addition, the slide lever 30 is a spring 1
24 is urged leftward in the figure. When the slide lever 30 is manually slid rightward against the urging force of the spring 124, the rack 120
The planetary gear mechanism 66 meshes with the planetary gear 106 to rotate the planetary gear 106 by a predetermined amount in the winding direction. By the one-stroke sliding movement of the slide lever 30, the take-up shaft 34 is rotated by one frame via the planetary gear mechanism 66 and the driving force transmission mechanism 68. When the hand is released from the slide lever 30, the slide lever 30 returns to the original position shown in FIG. At this time, the planetary gear 106 is pushed by the rack 120 and the sun gear 104
It is revolved around in a counterclockwise direction. Therefore, the power generated by the return movement of the slide lever 30 is generated by the winding shaft 34.
Is not transmitted to When the slide lever 30 returns to the original position, the planetary gear 106 has the toothless portion 122.
Is located. Thereby, the planetary gear 106 is released from the regulation by the rack 120, and returns to the original position shown in FIG. 4 by the urging force of the torsion coil spring 108.

FIG. 9 is a perspective view showing a film feeding mechanism of the camera. An aperture 126 indicated by a two-dot chain line is provided between the cartridge body 1 and the winding shaft 34. When the key 44 engaged with the cartridge spool is rotated by the slide lever 30, the gear 62, the planetary gear mechanisms 64 and 66, the driving force transmission mechanism 68, and the gear 70 shown in FIG. The take-up shaft 34 is rotated in the winding direction. The sent out photographic film F is sent to the winding shaft 34 along the film path and behind the aperture 126. And Photo Film F
Is wound by the winding shaft 34 from the front end side.

A two-tooth sprocket 128 is rotatably supported by a camera via a shaft 130 in the film passage. The intermittent sprocket 128 has two projections (splaw nails A and B) 129 that mesh with each other when a pair of perforations A and B arranged at short intervals move.
129 are formed, and two splaw nails 129 and 12 are formed.
The wide arc portion between 9 comes in contact with the film, and slips until perforation comes with one splaw 129 hitting the film surface. These splaw nails 12
The rotation trajectories 9 and 129 enter the film path, and when the first frame matches the aperture, the film feeding is stopped by a one-frame stopping mechanism (not shown).

Next, a method of using the camera configured as described above will be described. First, the cartridge cover 38 is opened, and the cartridge body 1 is loaded into the cartridge chamber 32 of the camera as shown in FIG. At this time, the upper end of the cartridge spool 7 of the cartridge body 1 is engaged with the key 44 shown in FIG. 3, and the key 74 of the opening / closing mechanism shown in FIG. You.

Next, when the cartridge lid 38 is closed, the lower end of the cartridge spool 7 of the cartridge body 1 is engaged with the key 42 shown in FIG. Then, as shown in FIG. 7, when the spindle 82 of the opening and closing mechanism is pushed by the cartridge lid 38 and rotates while rising, the key 74 is rotated and the light shielding lid 72 is opened. Thus, the photographic film can be sent out.

Next, the crank lever 48 is made to protrude from the concave portion 58 as shown by a two-dot chain line in FIG. 3, and the crank lever 48 is rotated in the feeding direction. As a result, the cartridge spool 7 is rotated in the feeding direction, and the photographic film is fed from the cartridge body 1. When the leading end of the photographic film approaches the winding shaft 34, the leading end of the photographic film is wound around the winding shaft 34 because the winding shaft 34 is rotated via the above-described driving force transmission mechanism. The rotation speed of the gear 62 (the rotation speed of the cartridge spool 7) is
Are provided coaxially with different gear diameters so as to be a speed increasing mechanism, so that the winding speed of the winding shaft 34 is faster than the sending speed of the photographic film from the film cartridge. Thus, the photographic film is wound up on the winding shaft 34 with a predetermined tension. on the other hand,
If the photo film tension becomes excessive, the planetary gear mechanism 64
Of the planetary gear 102 escapes from the sun gear 104 of the planetary gear mechanism 66. When the rotational force from the sun gear 100 is led, the planetary gear 102 revolves in a direction in which it meshes with the sun gear 104 of the planetary gear mechanism 66.
However, when the photographic film is wound around the winding shaft 34, the rotational force from the winding shaft 34 is predominant. In this case, the planetary gear 102 is revolved in a direction in which the planetary gear 102 escapes from the sun gear 104 because a rotational force is applied from the sun gear 104. Therefore, the photographic film is wound up without excessive tension. When the first frame is located behind the aperture 126, the crank lever 48
Is stopped, and the crank lever 48 is moved to the recess 58 in FIG.
To be stored. The fact that the first frame is located behind the aperture 126 is confirmed by a counter (not shown) provided in the camera.

After the first frame has been photographed, the slide lever 30 shown in FIG.
The slider is slid rightward against the urging force of No. 24. Thereby, the rack 120 of the slide lever 30 meshes with the planetary gear 106 of the planetary gear mechanism 66, the planetary gear 106 rotates in the winding direction, and the winding shaft 34
By being rotated by the number of frames, the second and subsequent frames are sequentially positioned behind the aperture 126. When the photographic film is to be rewound from the winding shaft 34 after all frames have been photographed by repeating such operations, the crank lever 48 is projected from the recess 58 and rotated in the rewound direction. As a result, the cartridge spool 7 is rotated in the rewind direction, and the photographic film is rewound onto the cartridge body 1. At this time, the planetary gear 102 of the planetary gear mechanism 64
Since the revolving force from the sun gear 100 in the rewinding direction revolves clockwise around the sun gear 100, the connection with the planetary gear mechanism 66 is released. Therefore, no rotational force is transmitted to the winding shaft 34, and the photographic film is rewound in a state where the winding shaft 34 is driven to rotate.

Next, the photographic film is loaded into the cartridge body 1.
When the cartridge 98 is completely rewound, the mark 98 on the rotating body 50 side of the cartridge lid 38 is attached to the main body 46 as shown in FIG.
Align with the mark 96 on the side. As a result, the key groove 55 shown in FIG.
Opens. Then, remove the film cartridge from the camera.

In this embodiment, as shown in FIG. 4, the planetary gear 106 of the planetary gear mechanism 66 is positioned at the toothless portion 122 of the slide lever 30, and the rotational force from the sun gear 104 (photo film) The rotation force from the gear 62 for sending out) is not transmitted to the slide lever 30, but this is not a limitation. For example, the planetary gear 106 is meshed with the rack 120, and when the rotational force is transmitted from the sun gear 104, the rack 120
A similar purpose can be achieved by using a planetary gear mechanism that escapes from the vehicle.

The hoisting force from the slide lever 30 is transmitted via the planetary gear mechanism 68 to the planetary gears 102.
Is transmitted to the planetary gear 102, the rotational force from the sun gear 104 is led by the planetary gear 102.
4, the winding force is transmitted to the winding shaft 34, so that there is no problem in winding the photographic film.

[0043]

As described above, according to the camera of the present invention, the initial driving and the rewinding are performed by the rotation of the first driving member, so that the operability is improved, and the second driving member is improved. The drive member is slid to rotate the take-up shaft by one frame to wind up the photographic film by one frame, thereby improving operability. Therefore, the present invention relates to a camera using a film cartridge which is wound around a spool up to the end of a photographic film in a cartridge body, and the initial feed at the time of loading and the one-frame feed at the time of shooting are manual. Thus, it is possible to provide a simple camera having a structure capable of improving operability.

[Brief description of the drawings]

FIG. 1 is a front view of a simplified camera to which a camera of the present invention is applied.

FIG. 2 is a rear view of the camera shown in FIG. 1;

FIG. 3 is a perspective view of the camera shown in FIG. 1 as viewed from the front;

FIG. 4 is a perspective view of the camera shown in FIG. 1 as viewed from above.

FIG. 5 is an essential part perspective view showing a state where a film cartridge is loaded in the camera.

FIG. 6 is a structural diagram showing an opening / closing mechanism of a light shielding cover of the film cartridge.

FIG. 7 is an explanatory view showing a state in which the opening / closing mechanism shown in FIG. 6 opens a light shielding cover;

FIG. 8 is a mounting relation diagram of a member that performs opening / closing control and release of control of the cartridge lid.

FIG. 9 is a perspective view showing a film passage of the photo film.

FIG. 10 is a perspective view of a film cartridge of the new photo system.

11 is a side view of the film cartridge shown in FIG.

FIG. 12 is an explanatory view showing a state in which a photo film is pulled out from a film cartridge.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Cartridge main body 20 ... Camera main body 30 ... Slide lever 34 ... Winding shaft 38 ... Cartridge lid 42 ... Key 48 ... Crank lever 62 ... Gear 64, 66 ... Planetary gear mechanism 68 ... Driving force transmission mechanism 70 ... Winding shaft gear

Claims (8)

[Claims] A film cartridge housed in a cartridge body wound around a spool to the end of a photographic film is loaded, and a spool drive shaft engaged with a spool of the film cartridge and fed out of the film cartridge. A rotation member for manually rotating the spool drive shaft; transmitting a rotational force of the spool drive shaft to the winding shaft; and rotating the spool drive shaft. A drive force transmission mechanism that increases the speed and transmits the rotation to the take-up shaft so that the rotation speed of the take-up shaft is faster than the rotation speed of the spool drive shaft; and The spool drive shaft is provided between the spool drive shaft and the spool drive shaft through the drive force transmission mechanism. And a planetary gear mechanism for interrupting transmission of the rotational force to the spool drive shaft when the rotational force is transmitted to the film cartridge by rotating the spool member by rotating the rotating member. A camera characterized in that the photographic film is sent out, the photographic film is initially fed, and the leading end of the photographic film is wound around a rotating take-up shaft. 2. A film cartridge which is housed in a cartridge body wound around a spool up to the tip of a photographic film is loaded, and a spool drive shaft engaged with the spool of the film cartridge and the film cartridge are fed from the film cartridge. A camera having a winding shaft for winding a photographic film, a first driving member for manually rotating the spool driving shaft, and transmitting a rotational force of the spool driving shaft to the winding shaft; A drive force transmission mechanism for increasing the rotation speed of the shaft and transmitting the rotation to the take-up shaft, thereby making the rotation speed of the take-up shaft faster than the rotation speed of the spool drive shaft; and the spool drive shaft and the drive force transmission. The drive force transmission mechanism is provided between the take-up shaft and the spool drive shaft via the drive force transmission mechanism. A planetary gear mechanism that blocks transmission of the rotational force to the spool drive shaft when the rotational force is transmitted to the drive shaft; and is connected to the winding shaft via the drive force transmission mechanism so as to be capable of transmitting power. A second drive member for rotating the take-up shaft by one frame by a manual slide operation, and rotating the spool drive shaft by rotating the rotation lever to thereby form a film cartridge. Wherein the photographic film is sent out from the camera and wound around a take-up shaft, and the one-film winding member is operated to wind up the photographic film by one frame. 3. A film cartridge housed in a cartridge body wound around a spool up to the end of a photographic film is loaded, and a spool drive shaft engaged with the spool of the film cartridge and fed from the film cartridge. A take-up shaft for winding a photographic film, wherein the spool drive shaft is mounted inside a cartridge cover for loading the film cartridge into the camera, and a spool drive shaft is provided outside the cartridge cover. A rotating member for manually rotating the spool drive shaft, the spool drive shaft and the winding shaft are connected so as to be able to transmit a driving force via a driving force transmission mechanism, and the cartridge drive cover is closed to engage the spool drive shaft with the spool. After that, the rotating member is rotated to rotate the spool drive shaft. Ri, camera, characterized in that the wound around the winding shaft feeding the photographic film from the film cartridge. 4. The camera according to claim 3, wherein said rotating member is provided so as to be housed in a concave portion of said cartridge lid. 5. The rotating member of the cartridge lid,
An engaging member is formed, and a regulating member that engages with the engaging member and regulates opening of the cartridge lid is provided on the main body of the camera. 4. The camera according to claim 3, wherein the restriction of the engaging member is released and the cartridge lid is opened only when the photo film is at a position where the photo film is stored in the cartridge body up to the front end. 6. A film cartridge which is housed in a cartridge body and wound around a spool up to the end of a photographic film, and which is provided with a light-shielding cover at a film outlet thereof, is loaded by opening the cartridge cover. A camera having a spool drive shaft that engages with a spool of the above, and a take-up shaft that winds up the photographic film fed from the film cartridge, a rotating member that manually rotates the spool drive shaft, and the spool drive shaft. A driving force transmitting mechanism for transmitting the rotational force of the film cartridge to the winding shaft; an engaging member engaged with the light-shielding lid of the film cartridge; A light-shielding lid opening / closing mechanism comprising a driving member for opening the light-shielding lid, wherein the cartridge lid is closed to open the light-shielding lid. A camera wherein the photographic film is sent out from a film cartridge and wound around a take-up shaft by rotating the spool drive shaft by rotating the rotating member. 7. A one-frame winding member, which is manually operated, is provided on the camera body.
Power is transmitted to the winding shaft via the driving force transmission mechanism so that power can be transmitted, and the winding shaft is rotated by one frame in conjunction with operation of the one-frame winding member. The camera according to claim 1, 3 or 6. 8. A planetary gear mechanism is provided between the one-frame winding member and the driving force transmission mechanism, and transmits a rotational force caused by rotation of the rotating member to the one-frame winding member. 8. The camera according to claim 7, wherein the cutoff is performed by the planetary gear mechanism.