JP3471147B2 - Shutter charge mechanism - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter charge mechanism operated by transferring a photographic film having two perforations in one frame of a photographing screen.

[0002]

2. Description of the Related Art As a film unit with a lens in which a simple photographing mechanism is incorporated and an unexposed photo film and a film cartridge are loaded, for example, "Sharp Run 800"
(Trade name) "and the like are manufactured and sold by the applicant. In such a film unit with a lens, the winding knob that is engaged with the spool of the cartridge is rotated for each shooting to wind it up into the exposed photo film cartridge, and the transfer of the photo film at this time is used to shutter charge. A shutter charge mechanism for performing the above is incorporated.

By the way, there has been proposed a photographic film having a new perforation arrangement format which enables efficient photographic print processing. In this photographic film, perforations are alternately arranged at long intervals and short intervals, and one frame is photographed between pairs of perforations arranged at long intervals. Various proposals have also been made for using this photographic film in a lens-fitted film unit.

FIG. 8 shows an example of a shutter charge mechanism of a lens-fitted photo film unit in which the photo film of the new format is loaded. A perforation 70a of the photo film 70 has one of the photo film 70's.
A driven sprocket 71 that is half-rotated by winding up a frame is meshed, and a rotary member 73 integrally formed with a winding stop cam 72 and the like is coaxially attached to the driven sprocket 71. The driven sprocket 71 is not always rotated by meshing with the perforation 70a, and when the meshing with the perforation 70a is released, the rotating member 73 is biased by the leaf spring 74, so that the next perforation 70a Is rotated to the position waiting for. In the vicinity of the rotating member 73, a shutter drive lever 75 and a locking lever 76, which are spring-biased counterclockwise and clockwise, respectively, are rotatably arranged.

The shutter drive lever 75 kicks the shutter blades 77 to expose the photographic film 70, and is rotated to the shutter charge position by half rotation of the rotating member 73. The locking lever 76 engages the engagement protrusion 76 a with the engaged protrusion 75 a of the shutter drive lever 75 at the charging position, and also the groove 7 of the unwinding cam 72.
The film winding is stopped by engaging with 2a. When the shutter button is pressed, the locking lever 76 is rotated counterclockwise against the bias of the spring to release the engagement with the rotating member 73,
Then, the engagement with the shutter drive lever 75 is released. The shutter drive lever 75 kicks the shutter blades 77 to expose the photographic film 70, and then the photographic film 70 that has not been stopped is wound up in the cartridge.

[0006]

A lens-fitted film unit using a conventional 135-size photographic film,
Also, with a lens-fitted photo film unit using a photo film of a new format, the photo film before exposure may be wound up in the cartridge by taking an operation method different from usual. As shown in the drawing, the winding knob is rotated while the shutter button is slightly pressed, that is, the engagement lever 76 is slightly rotated and the engagement with the winding stop cam 72 is released. As a result, the photographic film 70 that has not been stopped is wound up in the cartridge without the shutter release by the shutter drive lever 75 being performed.

The above problem is that the 135-size photographic film is continuously provided with perforations. Therefore, by stopping the winding, at least several frames of the photographic film are wound up, and then the remaining photographic film is continuously photographed. be able to.

However, in the lens-fitted photo film unit loaded with the photo film of the new format, when the photo film 70 is transferred without the shutter release, the locking lever 7 is attached to the outer circumference of the rotated stop cam 72.
6 abuts strongly, and the rotation member 73 cannot be rotated by the leaf spring 74. As a result, the perforations 70a and the sprockets 71 cannot be engaged with each other, so that the photographic film 70 is no longer wound up and is entirely wound up in the cartridge. Also,
Even if the rotating member 73 is accidentally rotated, the distance between the perforations 70a is large, so that the driven sprocket 71 may be caught in a portion other than the perforations 70a of the photo film 70 when the winding is stopped. Will be impossible to shoot.

To solve this, the locking lever 76
The shutter drive lever 75 may first be disengaged by rotating the shutter, and then the engagement with the winding stop cam 72 may be released. However, depending on the photographer, the shutter button is pressed when the shutter release is performed. It is conceivable that the winding knob will be stopped and the winding knob will be rotated while the locking lever 76 and the winding cam 72 are not unlocked.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a shutter charge mechanism which prevents an unexposed photographic film from being rolled up by an operation which is different from usual.

[0011]

In order to solve the above problems, in the shutter charge mechanism according to the first aspect, when the locking lever is rotated by the pressing of the shutter button, the shutter charge mechanism first contacts the shutter drive lever. Release the engagement and release the shutter
Even if the pressing of the tongue is stopped, the shutter drive lever that has rotated in the release direction hits the locking lever due to the bias of the spring, so that the locking lever is further rotated and the engagement with the rotating member is released. I have to. As a result, the winding stop is not released even if the shutter button is pressed halfway, and the winding stop is surely released after the photographing is completed.

Further, in the shutter charge mechanism according to a second aspect of the present invention, the engagement between the locking lever and the shutter drive lever is such that the engagement projection projecting from the locking lever and the engaged projection projecting from the shutter drive lever. The locking lever is provided with a convex portion that abuts against the engaged projection when the shutter drive lever is rotated in the release direction.

Further, in the shutter charge mechanism according to a third aspect of the present invention, the shutter drive lever and the locking lever are provided with a convex portion that abuts when the shutter drive lever is rotated in the release direction.

Further, in the shutter charge mechanism according to a fourth aspect of the present invention, a pressing projection radially protruding is formed on the outer periphery of the rotating member, and the photographic film is kept in a state where the engagement between the locking lever and the shutter drive lever is not released. When transferred, the pressing protrusion of the rotating member presses the locking lever to forcibly release the engagement between the locking lever and the shutter drive lever.

Further, in the shutter charge mechanism according to a fifth aspect of the present invention, the pressing lever of the rotating member presses the locking lever,
This is performed only when the photographic film is transferred at a position where the winding knob and the locking lever are disengaged from each other.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 2 shows the external appearance of a lens-fitted film unit incorporating the shutter charge mechanism of the present invention. Film unit with lens 2
Is composed of a unit main body 3 in which a photographic film cartridge and various photographing mechanisms are built in, and a paper box 4 for storing the same. The paper box 4 has a contour that exposes the winding knob 5, the shutter button 6 and the like incorporated in the unit main body 3, and a hole for exposing the taking lens 7, the finder 8, the number of shots display window 9 and the like. Is provided.

As shown in FIG. 3, the unit main body 3 is composed of a main body base 12, a rear cover 13, an exposure unit 14, and a front cover 15. An exposure unit 14 is detachably attached to the front surface of the main body base 12 in which an exposure applying mechanism including a taking lens 7, a film winding mechanism, a shutter charging mechanism, and the like are unitized. The rear cover 13 is assembled behind the main body base 12 and accommodates the photo film cartridge 16 in a light-tight manner between the rear cover 13 and the main body base 12.

The front cover 15 is detachably attached to the front surface of the main body base 12. On the upper surface of the front cover 15, there is provided a shutter button 6 which is partially notched and is elastically formed. A pressing rod 18 is provided below the shutter button 6, and presses the components of the exposure unit 14, which will be described in detail later, to operate the exposure imparting mechanism.

In the main body base 12, a cartridge storage chamber 21 for storing the cartridge 20 of the photographic film cartridge 16 and an unexposed photographic film 22 pulled out from the cartridge 20 are stored in the form of a film roll 22a. The film roll chamber 23 is formed integrally. In the present embodiment, the film roll 22a is attached to the core 2
It is formed by winding around 4. The upper and lower ends of the winding core 24 are rotatably supported inside the film roll chamber 23 by a pair of forks 25 and 26 provided on the rear cover 13. The film roll 22a without the winding core 24 may be housed in the film roll chamber 23. In this case, the pair of forks 25 and 26 can also be omitted.

The cartridge 20 is made of plastic. When not in use, the photographic film 22 is entirely stored inside, and when in use, the spool 36 is rotated to send the photographic film 22 out. Further, a lid member 20a is installed at the entrance of the film through which the photo film 22 is drawn out so that the photo film 22 is rotated when the photo film 22 is completely wound to shield the inside of the cartridge 20 from light.

The bottoms of the cartridge storage chamber 21 and the film roll chamber 23 are open, and after the photographic film cartridge 16 is loaded, they are closed by pull-top type bottom covers 28 and 29 provided on the rear cover 13, respectively. .

A dark box 31 is provided between the cartridge storage chamber 21 and the film roll chamber 23. Dark box 31
An exposure opening is formed on the back side of the exposure opening, and the exposure opening has a curved shape around the optical axis 7a passing through the taking lens 7 in the transport direction of the photographic film 22. A film supporting surface 32 is formed on the rear cover 13 at a portion facing the exposure opening.
Is similarly curved. The dark box 31 may be provided in the exposure unit 14. Alternatively, the dark box 31 may be divided so that a part of the dark box 31 is provided in the exposure unit 14 and the other part is provided in the main body base 12, and the exposure unit 14 is attached to the main body base 12 to form the dark box 31.

On the front side of the dark box 31, there is formed an opening 34 for guiding the subject light transmitted through the taking lens 7 to the exposure opening. Further, an opening 31a is formed above the dark box 31 for exposing a driven sprocket, which will be described later in detail, toward the photographic film 22. This opening 3
1a is formed on the upper left side with respect to the exposure opening as seen from the taking lens 7 side.

The winding knob 5 is used in the cartridge storage chamber 21.
Is rotatably arranged on the upper surface of the cartridge and is engaged with the spool 36 of the cartridge 20 loaded in the cartridge storage chamber 21. A part of the winding knob 5 is exposed from the rear cover 13. By rotating the exposed part in the film winding direction (counterclockwise direction in the drawing), the spool 36 rotates in the film winding direction. The photographed film 22 which has been taken and is taken is stored in the cartridge 20. A tooth row 5 a is formed on the outer circumference of the winding knob 5. A check claw 37 provided on the main body base 12 is engaged with the tooth row 5a. The check claw 37 prohibits the winding knob 5 from being rotated in a direction opposite to the film winding direction (clockwise in the drawing).

The photographic film 22 is, as shown in FIG.
It is composed of a film free end portion 22b, a photographing area 22c, and a film locking portion 22d. In the shooting area 22c,
Two large and small perforations 39, 40 having different sizes are alternately arranged along one side edge at two kinds of intervals, and the center of the perforations 39, 40 with a long interval is set to the film feed of the exposure opening. The top 41 is formed by photographing in a state of being aligned with the center of the feeding direction (longitudinal direction). The shooting area 22c has a length enough to form a predetermined number of shots 41 including a shot 41a to be shot first and a shot 41b to be shot last.

The film locking portion 22d is used for the cartridge 20.
It is locked to the spool 36 and is wound around the spool 36 by the rotation of the spool 36 by the operation of the winding knob 5. The film free end portion 22b and the film locking portion 22d are areas that are not used for photographing, and are exposure prohibited areas for use during development processing and the like. Therefore, the film free end portion 22b and the film locking portion 22d are wound up in the cartridge 20 in an unexposed state.

The exposure unit 14 is provided with a shutter charge mechanism. This shutter charge mechanism
As shown in FIG. 5 and FIG. 6, the first is sequentially inserted into the shaft 44 formed on the upper surface of the base plate 43 constituting the dark box 31.
Spring 42, shutter drive lever 45, number-of-shots display plate 4
6, a second spring 48 and a locking lever 49 that are sequentially inserted into the shaft 47, and a rotating member 51 that is inserted into the bearing opening 50.
And a driven sprocket 52, a leaf spring 53, and a shutter blade 54.

The driven sprocket 52 is engaged with the lower portion of the rotating member 51 and is exposed from the opening 31a in the upper portion of the dark box 31 toward the film surface. The circumferential surface 52a of the driven sprocket 52 is provided with two pairs of large and small teeth 55 and 56, which mesh with the pair of large and small perforations 39 and 40 arranged at short intervals, in a rotational symmetry of 180 °. . The driven sprocket 52 is rotated halfway by the film transfer when the photographic film 22 for one frame is wound up in the cartridge 20.

The rotating member 51 includes a shaft 58 inserted into the bearing opening 50, a pressed portion 59 for assisting rotation of the driven sprocket 52, a shutter charge cam 60 for shutter charging, and a winding stopper for film winding. Cam 61
And a two-tooth gear 62 that rotates the number-of-photographed display plate 46 by one graduation, and these are integrally formed.

The pressed portion 59 is composed of a pair of protrusions 59a formed on the outer periphery with 180 ° rotational symmetry. Since the photographic film 22 is not continuously provided with the perforations, a state occurs in which the teeth 55 and 56 of the driven sprocket 52 are not meshed with any of the perforations 39 and 40. In this state, the leaf spring 53 attached to the base plate 43 presses the protrusion 59a to rotate the rotating member 51 in the driven direction. As a result, the teeth 56 of the driven sprocket 52 are
It is moved to a position where it can be meshed with the next perforation 40.

The shutter drive lever 45 has a first spring 42.
It is urged in the counterclockwise direction (release position) by. One end 42a of the first spring 42 is hooked on a pin 43b on the base plate 43, and the other end 42b is hooked on a spring hooking portion 45c of the shutter drive lever 45. The shutter charge cam 60 presses the protrusion 45a of the shutter drive lever 45 by the blade-shaped protrusion 60a formed on the outer periphery with rotational symmetry of 180 °, and rotates it clockwise (charge position).

The locking lever 49 has its one end 48a hooked on the pin 43a on the base plate 43, and the other end 48b lowered to the clockwise direction (winding stop position) by the second spring 48 hooked on the piece 49c. And is urged by the claw 49a.
Is in contact with the outer circumference of the winding stop cam 61 of the rotating member 51. The rotation member 51 rotates half a turn, and the groove 6 of the unwinding cam 61
When 1a reaches the position matching the claw 49a of the locking lever 49, the locking lever 49 is slightly rotated clockwise by the urging force of the second spring 48, and the claw 49a is inserted into the groove 61a. . As a result, the rotation of the rotating member 51 is blocked, and the film winding state is established. In addition, between the first spring 42 and the second spring 48, the first spring 42 has a stronger biasing force than the second spring 48.

The locking lever 49 is provided with a winding stop cam 61.
When the film winding operation is carried out by engaging with the film winding operation, the shutter driving lever 45 rotated to the charging position is engaged and the film winding operation is performed by engaging the winding stopping claw 49b with the tooth row 5a of the winding knob 5. Block.

Locking lever 49 and shutter drive lever 45
For engagement with, the engagement protrusion 64 protruding downward from the locking lever 49 and the lower step portion 65a of the engaged protrusion 65 protruding upward from the shutter drive lever 45 are butted. It is done by Then, when the shutter button 6 is pressed, the pressing rod 18 is locked by the locking lever 49.
The falling lever 49c is pressed to rotate the locking lever 49 counterclockwise as shown in FIG. Lock lever 4
When 9 is rotated beyond the position shown in the drawing, the engagement between the engaging projection 64 and the lower step portion 65a of the engaged projection 65 is released, and the shutter is pressed by the first spring 42 as shown in FIG. The drive lever 45 is rotated counterclockwise.

When the shutter drive lever 45 is rotated counterclockwise, the kicking arm 45b causes the base plate 43 to move.
The action piece 54a of the shutter blade 54 that is projected above is kicked off. As a result, the shutter blades 54 have the shaft 66.
Then, the shutter opening 67 is opened and the photographic film 22 is exposed. Further, since the shutter blade 54 is rotated counterclockwise by the urging force of the pullback spring 68, the shutter opening 67 is immediately closed.

Incidentally, until the engagement between the engagement protrusion 64 and the engaged protrusion 65 is released, the claw portion 4 of the locking lever 49 is released.
The engagement between 9a and the groove 61a of the winding stop cam 61 is not released. This is because when the shutter button 6 is slightly pressed and the winding knob 5 is rotated while the engagement between the locking lever 49 and the winding knob 5 is disengaged, a position adjacent to the groove 61a on the outer periphery of the winding stop cam 61 is provided. The reason for this is that the pressing protrusion 61b that is provided to project against the claw portion 49a of the locking lever 49 hits. This prevents the unexposed photographic film 22 from being wound into the cartridge 20.

Further, when the shutter button 6 is pressed and the winding knob 5 is rotated until just before the engagement between the engaging projection 64 and the engaged projection 65 is released, as shown in FIG. 1, the pressing projection 61b. Presses the claw portion 49a of the locking lever 49 counterclockwise to forcibly release the engagement between the engagement protrusion 64 and the engaged protrusion 65, that is, the shutter is released.

A convex portion 69 is integrally formed in the vicinity of the engaging protrusion 64 of the locking lever 49. When the shutter drive lever 45 rotates counterclockwise at the time of shutter release, the convex portion 69 has an upper step portion 65 of the engaged projection 65.
b is struck. Since the second spring 48 has a weaker biasing force between the first spring 42 and the second spring 48, the locking lever 49 is rotated counterclockwise against the biasing force of the second spring 48, and the pawl The portion 49a is pulled out from the groove 61a of the winding stop cam 61, the winding stop claw 49b is separated from the tooth row 5a of the winding knob 5, and the film winding stop is released. This allows the photographic film 22 to be wound up subsequently.

The two-tooth gear 62 is meshed with a tooth row 46a formed on the outer periphery of the number-of-photographs display plate 46, and the number-of-photographs display plate 46 is rotated clockwise by one scale by half rotation of the two-tooth gear 62. It is rotated. A scale for displaying the number of images is provided on the upper surface of the number-of-photos display plate 46 corresponding to the rotation pitch thereof, and the scale can be observed through the display window 9. This scale is the number of films that can be photographed at that time, that is, the remaining number display scale.

Next, the operation of the above embodiment will be described.
A user who has purchased the lens-fitted film unit 2 shown in FIG. 2 first rotates the winding knob 5 to prepare for photographing. When the winding knob 5 is rotated, the film locking portion 22d shown in FIG. 4 winds up the photographic film 22 in the cartridge 20.

The driven sprocket 52 and the rotary member 51 are rotated counterclockwise by the movement of the photographic film 22 and the bias of the leaf spring 53, and the small teeth 56 are moved to a position where they can mesh with the next small perforation 40. To be done. When the photo film 22 is further transferred, the driven sprocket 52 is
Small tooth 56 of the next meshes with the next small perforation 40,
The large teeth 55 sequentially mesh with the large perforations 39.
The rotating member 51 is half-turned counterclockwise between the start of the rotating operation of the winding knob 5 and the engagement of the large teeth 55 with the large perforations 39.

While the rotating member 51 rotates half a turn, the projection 60a of the shutter charge cam 60 presses the projection 45a of the shutter drive lever 45, and the shutter drive lever 45
Is rotated clockwise against the bias of the first spring 42.
The locking lever 49 rotates clockwise by the urging force of the second spring 48 to engage the claw portion 49a with the groove 61a of the unwinding cam 61 and lock the rotation of the rotating member 51.
The engagement protrusion 64 is the engaged protrusion 6 of the shutter drive lever 45.
5 is engaged with the lower step portion 65a. Further locking lever 49
Engages the winding stop claw 49b with the tooth row 5a on the outer periphery of the winding knob 5 to prevent the rotation operation of the winding knob 5. This completes the preparation for photographing the lens-fitted film unit 2.

After that, when the photographing range is confirmed with the finder 8 and the shutter button 6 is pressed, the pressing rod 18 presses the falling piece 49c of the locking lever 49 and moves counterclockwise (unwinding release position). Rotate. As a result, the engagement between the engagement protrusion 64 of the locking lever 49 and the engaged protrusion 65 of the shutter drive lever 45 is released, and the shutter drive lever 45 is rotated counterclockwise by the urging force of the first spring 42. To do.

The shutter drive lever 45 has a working piece 54a of a shutter blade 54 which is swingably mounted on a shaft 66.
Is kicked by the kicking arm 45b and rotated clockwise in the drawing. This opens the shutter opening 67,
The photographic film 22 is exposed. Further, the shutter blade 54 is rotated counterclockwise by the urging force of the pull-back spring 68, and immediately closes the shutter opening 67.

Further, the shutter drive lever 45 which kicks the shutter blades 54 is provided on the upper step portion 65b of the engaged projection 65.
To the convex portion 69 of the locking lever 49. As a result, the locking lever 49 is rotated counterclockwise against the urging force of the second spring 48, and the claw portion 49 a is locked by the groove 61 of the unwinding cam 61.
At the same time as coming out of a, the winding stop claw 49b is separated from the winding knob 5, and the film winding stop is released. When the winding knob 5 is rotated in the film winding direction (counterclockwise direction), the rotating member 51 is rotated halfway as described above, and the shutter charge, the rotation of one scale of the number display plate 46, and the film winding stop are performed. Be seen.

After the shutter charge, the shutter button 6
When the erroneous operation of rotating the winding knob 5 is performed with a slight pressure on the rotating member 51, the claw portion 49a of the locking lever 49 has not slipped out of the groove 61a of the winding stop cam 61, so that the rotating member 51 is rotated. As a result, the unexposed photographic film 22 is not wound into the cartridge 20.

If the winding knob 5 is rotated while the shutter button 6 is pressed until the engagement between the engagement projection 64 and the lower step portion 65a of the engagement projection 65 is about to be released, the winding knob 5 is rotated. The pressing projection 61b of the stop cam 61 presses the claw portion 49a of the locking lever 49, forcibly releasing the engagement between the engaging projection 64 and the lower step portion 65a of the engaged projection 65, and shutter release is performed. Therefore, the unexposed photographic film 22 is never wound up in the cartridge 20. Further, the shutter release at this time reveals that the photographer has made an erroneous operation, so that such an erroneous operation will not be performed in subsequent photographing.

It should be noted that the locking lever is rotated from the film winding stop position to the film winding release position by abutting the convex portion of the locking lever and the engaged projection of the shutter drive lever. It is also possible to provide a new convex portion for both the locking lever and the shutter drive lever without using the fitting protrusion so that these may abut when the shutter is released. Further, in the above-described embodiment, the lens-fitted film unit in which the novel photographic film is loaded has been described as an example, but the shutter charge mechanism of the present invention can also be used in a camera. Further, it can be used for a film unit with a lens and a camera for loading a 135-size photographic film.

[0049]

As described above, according to the shutter charge mechanism of the present invention, the shutter release is performed by first releasing the engagement between the locking lever and the shutter drive lever by pressing the shutter button. Therefore, the film winding can be prevented when the shutter button is half pressed. To release the engagement between the locking lever and the rotating member, the shutter driving lever that rotates in the release direction by the spring bias rotates the locking lever even when the pressing of the shutter button is stopped. Since the film winding stop is reliably released after the photographing is finished, the exposed photographic film can be wound up.

Further, when the photographic film is transferred in a state where the winding knob is disengaged from the locking lever and the locking lever is not disengaged from the shutter drive lever, the pressing protrusion of the rotating member is used. Since the shutter lever is pressed by pressing the shutter lever to forcibly release the engagement between the shutter lever and the shutter drive lever, the unexposed photo film will not be rolled up and a warning of incorrect operation will be given. Will also be.

[Brief description of drawings]

FIG. 1 is a plan view showing a state immediately before a shutter release of a shutter charge mechanism of the present invention.

FIG. 2 is a perspective view showing the external appearance of a lens-fitted film unit incorporating the shutter charge mechanism of the present invention.

FIG. 3 is an exploded perspective view showing a configuration of a unit main body.

FIG. 4 is an explanatory diagram showing a configuration of a photographic film cartridge.

FIG. 5 is an exploded perspective view showing a configuration of a shutter charge mechanism.

FIG. 6 is a plan view showing a shutter charge mechanism when the film is wound.

FIG. 7 is a plan view showing the shutter charge mechanism after the shutter release is completed.

FIG. 8 is a plan view showing an example of a conventional shutter charge mechanism.

[Explanation of symbols]

2 Film unit with lens 5 winding knob 6 Shutter button 20 Patrone 22 Photo Film 45 Shutter drive lever 49 Locking lever 51 rotating member 52 Driven sprocket 61 Winding stop cam 61b Pressing protrusion 64 engagement protrusion 65 Engagement protrusion 69 convex

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G03B 17/00 G03B 17/26-17/34 G03B 17/38-17/46

Claims (5)

(57) [Claims] 1. A shutter charge mechanism in which a shutter charge is performed by transferring one frame of a photographic film provided with two perforations per frame of a photographic screen, which meshes with the perforation of the photographic film. A driven sprocket that is rotated, a rotating member that is rotated coaxially with this driven sprocket, a shutter drive lever that is rotated by this rotating member to a charging position against the spring bias, and a shutter bias that is rotated by the spring bias. The shutter drive lever at the charging position,
A locking lever that engages with the rotating member and stops the film is wound, and the locking lever is rotated against the spring bias by the pressing of the shutter button to release the engagement with the shutter drive lever. After that, even if the pressing of the shutter button is stopped, it is further rotated by being abutted against the shutter drive lever that is rotated in the release direction by the spring bias, and the engagement with the rotating member is released. Shutter charge mechanism. 2. The engagement between the locking lever and the shutter drive lever is performed by abutment between an engaging projection protruding from the locking lever and an engaged projection protruding from the shutter driving lever, 2. The shutter charge mechanism according to claim 1, wherein the locking lever is provided with a convex portion that abuts against the engaged projection when the shutter drive lever is rotated in the release direction. 3. The shutter drive lever and the locking lever are each provided with a convex portion that abuts when the shutter drive lever is rotated in the release direction. Shutter charge mechanism. 4. The rotating member is formed with a pressing protrusion radially protruding on the outer periphery thereof, and the photographic film is transferred in a state where the engagement between the locking lever and the shutter drive lever is not released. 4. The shutter according to claim 1, wherein the rotating member driven to rotate presses the locking lever with the pressing projection, and the engagement between the locking lever and the shutter drive lever is released. Charge mechanism. 5. The locking lever is adapted to be engaged with a winding knob for winding the photographic film when the film is wound, to prevent the winding operation, and is locked by a pressing protrusion of the rotating member. 5. The shutter charging mechanism according to claim 4, wherein the pressing of the lever is performed only when the photographic film is transferred at a position where the winding knob and the locking lever are disengaged from each other.