JPH10333285A - Film unit with lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film unit with a lens constituted so that the malfunction of a photographing mechanism is eliminated by smoothing the rotation of a lock lever. SOLUTION: A C-shaped projected line 81 being the rotary shaft of the lock lever 59 is integrally formed at the rotation center of the lever 59. Then, one part of the outside circumference of a counter plate enters the part of the lever 59 where the line 81 is not formed. A notched part 82 notched by eliminating one part is formed at the line 81. The upper end surface 81a of the line 81 other than the notched part 82 abuts on the lower surface of a top board 63. Thus, the lever 59 is prevented from floating up and shake is prevented from occurring at a rotating time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographing mechanism of a film unit with a lens, and more particularly to a locking lever for releasing a locking of a shutter driving lever.

[0002]

2. Description of the Related Art A film unit with a lens incorporating a simple photographing mechanism and pre-loaded with an unexposed photographic film and a patrone, for example, "Sharun is Super800 (trade name), Sharun is Super Slim (trade name) )) Are manufactured and sold by the present applicant. In such a film unit with a lens, the take-up knob, which is engaged with the spool of the patrone, is rotated every time a picture is taken, and the exposed photographic film is wound up into the patrone by one frame. By utilizing the winding of the photographic film, the shutter is charged, the wrapping of the film is stopped, and the display plate for the number of shots is rotated.

[0003] The photographing unit of the film unit with a lens is assembled with a photographing lens, shutter blades, a finder including two lenses of an eyepiece and an objective. A shutter drive lever for kicking off shutter blades to open a shooting optical path, a number-of-shots display plate for displaying the number of remaining shots of the film, a locking lever for locking the shutter drive lever, and a locking lever to which a driven sprocket is fixedly attached. A lever and a cam member that engages with the number-of-photographs display plate are rotatably assembled.

Among these, a locking lever for releasing the locking of a shutter driving lever for opening and closing the shutter blades by pressing a shutter button is provided with a locking claw engaging with a film winding knob of a film unit with a lens, and a shutter driving lever. And a cam member engaging claw engaging with the cam member are integrally provided so as to extend in three directions, and a lower portion is rotatably mounted on a base of the photographing unit. Have been. A coil spring is attached to a lower portion of the locking lever, and abuts on the locking lever and the shutter driving lever to urge each lever in a direction opposite to the shutter charging position.

[0005] A C-shaped ridge having both ends extending near the periphery of the number-of-images display plate is integrally formed on the upper portion of the locking lever, and the C-shaped ridge is cut off. , A part near the periphery of the number-of-photographs display plate enters. The substantially ring-shaped ridge serves as a rotation axis of the locking lever, and the upper end surface of the ridge is in contact with the top plate.

The top plate supports the locking lever, the number-of-photographs display plate, and one end of the cam member, which constitute the above-described photographing unit, and covers the upper surface of the finder and the number-of-photographs display plate. A lens for enlarging a part of the display characters on the number display plate and a light guide member for guiding the light of the strobe charging completion lamp are also provided integrally.

[0007]

However, as described above, when the entire upper end of the ridge provided on the upper part of the locking lever is in contact with the lower surface of the top plate, the rotation resistance of the locking lever becomes large. Problem. If the locking lever is moved by pressing the shutter button halfway and this half-press is stopped immediately before the operation, the locking lever may not return to its original position if the rotation resistance of the locking lever is large. is there. If the film winding knob is accidentally rotated while the locking lever does not return to its original position, the perforation of the photo film may be damaged,
In the worst case, frame skipping or the like may occur.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a lens-equipped film unit in which the rotation of the locking lever is smoothed and the photographing mechanism does not malfunction.

[0009]

In order to achieve the above object, according to the present invention, an annular ridge is integrally formed on an upper surface,
A locking lever for releasing the locking of a shutter driving lever that opens and closes the shutter blades by pressing the shutter button, and a top plate that contacts at least the upper end surface of the protrusion of the locking lever and supports the locking lever. In a film unit with a lens containing an unexposed photographic film, a plurality of cutout portions are formed by intermittently cutting a plurality of upper end surfaces of the ridges in contact with the top plate. .

According to a second aspect of the present invention, a C-shaped ridge having both ends extending to the vicinity of the periphery of the disc-shaped number-of-images display plate is integrally formed on the upper surface, and a shutter drive for opening and closing shutter blades by pressing a shutter button. A lens having a locking lever for releasing the locking of the lever, and a top plate contacting at least the upper end surface of the protrusion of the locking lever and supporting the locking lever, and containing an unexposed photographic film. In the attached film unit, a notch is formed by cutting out a part of an upper end surface of the ridge contacting the top plate. In claim 3, a plurality of the notches are provided intermittently.

According to a fourth aspect of the present invention, there is provided a locking lever for releasing the locking of a shutter driving lever for opening and closing the shutter blade by pressing a shutter button, and at least an upper surface of the locking lever provided above the locking lever. A top plate integrally formed on the lower surface with an annular ridge contacting the bottom surface, and a part of a lower end surface of the ridge contacting the locking lever in a lens-fitted film unit containing an unexposed photographic film. In which a notch is formed.

[0012]

FIG. 2 is an external perspective view showing a film unit with a lens according to the present invention. The lens-fitted film unit 2 includes a unit main body 3 in which a film cartridge is loaded in advance and various photographing mechanisms are incorporated, and an exterior paper 4 covering a central portion of the unit main body 3. The shutter button 6,
A counter window 7 is provided. Further, a finder 8, a photographing lens 9, a strobe charging switch 10, a strobe light emitting unit 11, and the like are provided on the front surface. On the back side, a hoisting knob 12 that is rotated every time one frame is shot is exposed.

The exterior paper 4 has an adhesive applied to its back surface and is adhered so as to cover the central portion of the unit body 3 and the peripheral portion of the shutter button 6, and the shutter button 6 pressed by a finger is used.
Center of the camera, taking lens 9, viewfinder 8, counter window 7
And the like are exposed to the outside.

As shown in FIG. 3, the unit main body 3 of the film unit 2 with a lens includes a film cartridge 1.
4, an exposure unit 17 and a strobe unit 18 mounted on the front surface of the main body 16, and a front cover 19 and a rear cover 20 mounted to cover the front and back sides of the main body 16. And these are assembled by pawl engagement.

The film cartridge 14 comprises a plastic cartridge body 22 and a photographic film 23 housed in the cartridge body 22. A photo film 23 is provided in the cartridge body 22.
A spool 25 to which one end is locked is rotatably incorporated, and further has a built-in film sending mechanism as disclosed in JP-A-6-266053. Further, a bar-shaped light-shielding cover 26 that opens and closes the film entrance and exit by being rotated from the outside is incorporated in a film entrance and exit (not shown) through which the photo film 23 enters and exits the cartridge main body 22 instead of the conventional telephone. Have been.

On one side edge of the photographic film 23, two large and small perforations 28, 29 having different sizes are provided.
Are alternately arranged at two types of intervals. The perforations 28 and 29 are for setting the leading side and the rear side in the film feeding direction of each photographing frame 30. In the film unit 2 with the lens, the photographic film 23 is rolled into the cartridge body 22 for each photographing. Thus, the large perforations 28 indicate the leading side in the film feeding direction, and the small perforations 29 indicate the rear side. Each of the perforations 28 and 29 is provided in a number corresponding to the number of the shooting frames 30.

At the center of the main body 16, there is provided a light-shielding tube 34 for shielding the photographing optical path from the exposure unit 17 mounted on the front side to the photographic film 23. On the back side of the light-shielding cylinder 34, an aperture for defining an exposure range for the photographic film 23 is formed.
A curved film supporting surface 20a is formed on the rear cover 20 so as to face the aperture.

As a result, the film passage formed between the main body base 16 and the film supporting surface 20a has a curved shape, and is transported therein, and the photographic film 23 supported on the film supporting surface 20a is curved. You. Therefore, the curvature of field of the taking lens 9 which is a single lens is corrected, and an image with good focus can be obtained over the entire exposure screen.

An opening 46 for guiding the subject light transmitted through the photographing lens 9 to the aperture is provided on the front side of the light shielding tube 34.
Are formed. An opening 34a for exposing a sprocket incorporated in the exposure unit 17 toward the photographic film 22 is formed above the light-shielding cylinder 34. On both sides of the light-shielding tube 34, a cartridge chamber 36 and a film roll chamber 37, in which the cartridge body 22 and the film roll 35 around which the photo film 23 is rolled at the manufacturing stage, are housed, respectively. Have been.

The cartridge chamber 36 and the film roll chamber 37 have a rear cover 20 attached to the rear side of the main body base 16 and a bottom lid 39 for the cartridge chamber integrally formed with the rear cover 20 and a film roll chamber 37. By closing the bottom cover 40, proper light-shielding properties can be obtained. The bottom covers 39 and 40 are connected to the rear cover 20 via a flexible thin portion, and the bottom cover 39 is opened when the film cartridge 14 is taken out of the used film unit 2 with lens. You.

The winding knob 12 is rotatably mounted on the upper part of the cartridge chamber 36. The hoisting knob 12 has a gear formed on the outer periphery, and a drive shaft formed on the lower surface is engaged with a spool 25 of the cartridge body 22. The photo film 22 is wound up by the spool 25 by being rotated counterclockwise in the drawing every time one frame is shot. Further, the winding knob 12 is prevented from rotating in the reverse direction by the engagement of the check pawl 45 formed on the upper surface of the cartridge chamber 36 with the gear.

Although not shown, the cartridge chamber 36
When the film cartridge 14 is taken out of the cartridge chamber 36, a light-shielding lid closing mechanism that closes the light-shielding lid 26 in conjunction with opening of the bottom lid 39 is incorporated in the upper surface and the side surfaces of the cartridge.

The strobe unit 18 is composed of a printed circuit board 18a provided with a strobe circuit and a strobe light emitting unit 11 assembled to the printed circuit board 18a. The strobe is charged by contacting the contact portion 42 of the printed circuit board 18a, and the flash is emitted by synchronizing with the shutter release. The printed circuit board 18a is also provided with a metal contact piece for connecting a dry cell 37 serving as a power supply for the strobe unit 18.

As shown in FIG. 4, the exposure unit 17 according to the film winding device of the present invention is assembled into various units by assembling various parts on a plastic molded base 48, and is detachably mounted on the front surface of the light shielding cylinder 34. Assembled. A plurality of components constituting a shutter mechanism are assembled on the upper surface of the base portion 48, and lenses 49a and 49b constituting the finder 8 are held. A lens cover 50 for holding the photographing lens 9 is attached to the front surface of the base 48.
An exposure opening for exposing the photographic film 23 is formed between the shutter and the base 48, and shutter blades for opening and closing the exposure opening are swingably assembled.

On the upper surface of the base portion 48, shafts 52, 53,
A bearing portion 54 is formed. A shutter drive lever 55, a first spring 56, and a counter plate 57 are inserted into the shaft 52 in this order. The shaft 53 has a second spring 58 and a locking lever 5.
9 are inserted in order. A cam member 60 is provided on the bearing portion 54.
Is inserted. In addition, a sprocket 61, an urging spring 62 assembled on the upper surface of the base portion 48, and a top plate 6
3 constitute the exposure unit 17.

The top plate 63 is entirely formed of a transparent or translucent plastic, and is assembled on the base 48. The top plate 63 has a hole 63 a for supporting the upper end of the shaft 52 and a counter drive shaft 60 of the cam member 60.
a and a shaft 63c that fits into a hole 59d (see FIG. 1) of the locking lever 59 are provided integrally. Further, a scale lens 64 for enlarging and displaying a scale written on the upper surface of the counter plate 57 is provided integrally.

On the upper surface of the counter plate 57, a scale 84 composed of dots and numerals is written along the direction of rotation, and a counter window of the unit main body 3 is provided via a scale lens 64 of a top plate 63 disposed above. 7 is externally displayed. In addition,
The scale 84 is written so as to display the remaining recordable number.

The bearing portion 54 has a hole penetrated to the lower side, and the lower end of the inserted cam member 60 projects from the lower side. The sprocket 61 is engaged with the lower end of the cam member 60. The sprocket 61 has large and small perforations 2 formed on the photographic film 23.
The two sets of large teeth 66 and small teeth 67 that are sequentially meshed with 8, 29
Are provided.

In the cam member 60, a counter drive shaft 60a, a stop cam 70, a charge cam 71, a biasing cam 72, and a shaft 73 are integrally formed in this order from the top. Shaft 73
Is inserted into the bearing portion 54 and has a sprocket 61
Are engaged.

The biasing cam 72 is composed of a pair of protrusions formed with 180 ° rotational symmetry. Sprocket 61
After the large tooth 66 is disengaged from the large perforation 28, the urging spring 62 assembled to the base plate 48 presses the urging cam 72, and the cam member 60 is reliably rotated in the driven direction. . Thus, the small teeth 67 of the sprocket 61 are moved to a position where the small teeth 67 can mesh with the next small perforation 29. The biasing spring 62 is
It is formed from a leaf spring obtained by bending a thin metal plate.

The shutter drive lever 55 includes a first spring 56
Urged in the counterclockwise direction (release position). One end of the first spring 56 is hung on a pin on the base 48, and the other end is hung on a spring hook 55 a of the shutter drive lever 55. Then, a kicking arm 55b provided on the shutter drive lever 55 contacts one end of a shutter blade (not shown) to rotate the shutter blade.

The locking lever 59 has a claw 59b that engages with the locking cam 70 of the cam member 60, a locking claw 59c that meshes with teeth on the outer periphery of the winding knob 12, and one end of the second spring 58. A spring hook portion 59a to be engaged and an engaging portion 74 to be engaged with the shutter drive lever 55 are provided integrally.

The locking lever 59 is clockwise (wound stop position) by a second spring 58 having one end 58a hooked on a pin 48b on the base 48 and the other end 58b hooked on a spring hook 59a. It is biased toward. When the cam member 60 makes a half turn and the groove 70 a of the locking cam 70 reaches a position matching the claw portion 59 b of the locking lever 59, the locking lever 59 is rotated clockwise by the bias of the second spring 58. Then, the claw portion 59b is inserted into the groove of the locking cam 70. As a result, the rotation of the cam member 60 is prevented, and the film is stopped.

When the locking lever 59 is rotated clockwise to engage the pawl 59b with the locking cam 70, the engaging portion 74 of the locking lever 59 is directed upward from the shutter drive lever 55. The engaged portion 75 protrudes into the rotation locus of the engaged portion 75 and engages therewith, and holds the shutter drive lever 55 at the charging position.

When the locking lever 59 is engaged with the locking cam 70 and the shutter driving lever 55, the locking claw 59c is engaged with the outer teeth of the winding knob 12. Thereby, the film is stopped by the cam member 60,
The film winding is stopped by inhibiting the rotation of the winding knob 12. The sprocket 61 is stopped while the large teeth 66 are engaged with the large perforations 28 of the photographic film 23 when the shutter charge is performed.

FIG. 1 is an explanatory view in which the locking lever and its periphery are enlarged. At the center of rotation of the locking lever 59, a C-shaped ridge 8 serving as a rotation axis of the locking lever 59 is provided.
1 are integrally formed. A part of the outer periphery of the counter plate 57 enters into a portion where the C-shaped ridge 81 is not provided. A cutout portion 82 is formed on the protruding ridge 81 so that the cutout portion 82 is partially cut out so as to reduce the contact portion with the lower surface of the top plate 63. The upper end surface 81 a of the C-shaped ridge 81 other than the cutout portion 82 abuts on the lower surface of the top plate 63. As a result, the locking lever 59 is prevented from being lifted, and is prevented from shaking during rotation.

As described above, a part of the ridge 81 having a height abutting on the lower surface of the top plate 63 is cut out so as to reduce the contact portion with the lower surface of the top plate 63 to form a notch portion 82. By doing so, the occurrence of friction during rotation of the locking lever 59 due to the contact between the top plate 63 and the ridges 81 is reduced. Thereby, the locking lever 59 rotates extremely smoothly.

When the shutter button 6 is depressed after the engaging portion 74 of the locking lever 59 and the engaged portion 75 of the shutter driving lever 55 have been engaged, the pressing formed on the lower surface of the shutter button 6 The rod 77 (see FIG. 3) presses the spring hook piece 59a of the locking lever 59, and the locking lever 59 is rotated counterclockwise against the bias of the second spring 58.
When the locking lever 59 is rotated counterclockwise, the engagement portion 7
4 is disengaged from the engaged portion 75, and the shutter drive lever 55 is rotated counterclockwise by the bias of the first spring 56.

When the shutter drive lever 55 is rotated counterclockwise, the kicking arm 55b formed below the engaged portion 75 kicks one end of the shutter blade. As a result, the shutter blade swings around the shaft attachment portion to open the exposure opening, and the exposure to the photographic film 23 is performed.
Since the shutter blade is urged by the spring toward the position to close the exposure opening, the exposure opening is immediately closed.

The operation of the lens-fitted film unit of the present invention having the above-described structure will be described. First, the user who has purchased the film unit 2 with the lens rotates the winding knob 12 to prepare for photographing. When the winding knob 12 is rotated, the spool 25 of the cartridge body 22 is rotated in the winding direction, and the photographic film 23 is wound into the cartridge body 22.

When the photographic film 23 is transported, the small teeth 67 of the sprocket 61 mesh with the small perforations 31, and the large teeth 66 mesh with the large perforations 28 of the first frame 30b. The cam member 60 is rotated half a counterclockwise direction after the rotation operation of the winding knob 12 is started and before the large teeth 66 mesh with the large perforations 28.

While the cam member 60 rotates halfway, the charge cam 71 presses the shutter drive lever 55 to rotate the shutter drive lever 55 clockwise against the bias of the first spring 56. When the shutter drive lever 55 is rotated toward the charging position, the locking lever 59 is rotated clockwise by the bias of the second spring 58.

The locking lever 59 rotated clockwise engages the pawl portion 59b with the groove of the locking cam 70, and
In addition to locking the rotation of the shutter drive lever 55, the engagement portion 74 enters the movement locus of the engaged portion 75 of the shutter drive lever 55. As a result, the shutter drive lever 55 released from being pressed by the charge cam 71 is rotated counterclockwise by the bias of the first spring 56, and the engaged portion 75 and the engaging portion 74 are rotated.
Are engaged.

Further, the locking lever 59 engages the locking pawl 59c with the gear on the outer periphery of the winding knob 12, thereby preventing the rotation operation. Further, the counter plate 57 is rotated clockwise by the counter drive shaft 60 a of the cam member 60, and a scale indicating the number of remaining images is displayed from the counter window 7.
Thus, the preparation for photographing of the film unit with lens 2 is completed.

Thereafter, the photographer confirms the photographing range with the viewfinder 8 and depresses the shutter button 6. When the shutter button 6 is pressed down, the pressing rod 77 moves the locking lever 5.
9 is pressed and rotated in the counterclockwise direction (the anti-winding position). As a result, the engagement between the engaging portion 74 of the locking lever 59 and the engaged portion 75 of the shutter driving lever 55 is released, and the shutter driving lever 55 rotates counterclockwise by the bias of the first spring 56. I do.

The shutter drive lever 55 is
One end of the shutter blade, which is swingably assembled between the shutter blade and the lens cover 50, is kicked off by the arm 55b and rocked. As a result, the exposure opening is opened, and the photographic film 23 is exposed. Further, the shutter blade closes the exposure opening immediately by the bias of the spring.

The shutter drive lever 55 that kicks the shutter blade kicks the locking lever 59 by the engaged portion 75. As a result, the locking lever 59 is rotated counterclockwise because the urging force of the second spring 58 is weaker than the urging force of the first spring 56, and the claw 59b comes out of the groove 70a of the locking cam 70, and the film is released. The winding is released.

At this time, the locking lever 59 has a notch 82 formed by cutting out a part of the C-shaped ridge 81 that is in contact with the lower surface of the top plate 63. The contact area with the lower surface of the top plate 63 is reduced, and the locking lever 5
9 has less friction. For this reason, the locking lever 59 rotates extremely smoothly.

As described above, the notch 82 is provided in a part of the ridge 81 to reduce the friction when the locking lever 59 rotates, so that the locking lever does not return to the original position due to the friction. As a result, the winding knob 45 is erroneously rotated to prevent the perforation of the photographic film from being damaged and the frame from skipping.

For example, when the film unit with lens 2 is used on a windy sandy beach or the like, even if sand enters the inside of the film unit with lens 2, the notch 82 is formed in a part of the ridge 81. Since the contact area between the upper end surface of the ridge 81 and the lower surface of the top plate 63 is small, the intrusion sand or the like is caught between the ridge 81 and the top plate 63, and the locking lever 59 is rotated. The possibility of causing a failure is extremely reduced.

Thereafter, when the winding knob 12 is rotated in the film winding direction (counterclockwise), the cam member 60 is rotated half a turn as described above, and the shutter charge and the rotation of the counter plate 57 by one graduation and the film winding are performed. A stop is performed.

In the embodiment described above, as shown in FIG. 1, one long cutout portion 82 is provided on the ridge 81 of the locking lever 59.
As shown in FIG. 5, a plurality of notches may be provided intermittently on the protrusion of the locking lever. In the protrusion 91 of the locking lever of the second embodiment, two notches 91 are provided.
a, 91b. Thus, the contact area between the lens-fitted film unit and the top plate is reduced, friction during rotation is reduced, and rotation failure of the locking lever is prevented. In addition, the slopes 92a, 9b are formed on the sides of the notches 91a, 91b.
By providing each of the protrusions 2b, even if foreign matter such as sand is caught between the ridge 91 and the top plate, these foreign matter is easily discharged.

In the above-described embodiment, the counter plate is inserted into a part of the ridge of the locking lever. In addition, an annular ridge into which the counter plate is not inserted is provided on the upper surface. In the integrally formed locking lever, a cutout may be formed by intermittently cutting a part of the upper end surface of the ridge.

In the above two embodiments, the notch is provided on the ridge on the upper surface of the locking lever. However, a ridge is provided on the lower surface of the top plate, and a part of the ridge is notched. The cut-out portion may be formed. FIG. 6 is an explanatory diagram showing a main part of a film unit with a lens according to the third embodiment. In this embodiment, a shaft 103 that fits into the hole 102a of the locking lever 102 is provided on the lower surface of the top plate 101.
And a ridge 104 surrounding a part of the shaft 103 are provided integrally.

A part of the ridge 104 has a notch 1
05 is provided. The lower end surface 104 a of the C-shaped ridge 104 other than the cutout portion 105 abuts on the upper surface of the locking lever 102. Thereby, the locking lever 10
In addition to preventing lifting of the lock lever 2 to prevent blurring during rotation, the contact area between the upper end surface of the lock lever and the ridge 104 projecting from the top plate 101 is reduced, and the friction of the lock lever 102 is reduced. . For this reason, the locking lever 102 rotates extremely smoothly.

In the above-described embodiment, the AP
Although a film unit with a lens accommodating a photo film cartridge compatible with S (Advanced Photo System) has been described, it is needless to say that the same can be applied to a film unit with a lens accommodating a conventional 135 photographic film cartridge.

[0057]

As described above, according to the present invention, an annular ridge or a C-shaped ridge having both ends extending to the vicinity of the periphery of the disc-shaped display plate is integrally formed on the upper surface. And
A locking lever for releasing the locking of a shutter driving lever that opens and closes the shutter blades by pressing the shutter button, and a top plate that contacts at least the upper end surface of the protrusion of the locking lever and supports the locking lever. In the film unit with a lens that has stored the unexposed photographic film, a notch is formed by cutting out a part of the upper end surface of the ridge in contact with the top plate. It is possible to provide a film unit with a lens that is smooth and eliminates a malfunction of the photographing mechanism.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing the periphery of a locking lever in a film unit with a lens according to the present invention.

FIG. 2 is a perspective view showing the appearance of a film unit with a lens according to the present invention.

FIG. 3 is an exploded perspective view showing a configuration of a unit main body of FIG. 2;

FIG. 4 is an exploded perspective view showing an exposure unit.

FIG. 5 is a perspective view showing a ridge of a locking lever according to a second embodiment of the present invention.

FIG. 6 is an explanatory view showing an engagement portion between a top plate and a locking lever according to a third embodiment of the present invention.

[Explanation of symbols]

 2 Film unit with lens 3 Unit body 6 Shutter button 14 Film cartridge 17 Exposure unit 23 Photo film 28 Large perforation 29 Small perforation 59 Locking lever 60 Cam member 61 Sprocket 62 Urging spring 63 Top plate 66 Large tooth 67 Small tooth 81 Protrusion Article 82 Notch

Claims (4)

[Claims] An annular protrusion is integrally formed on an upper surface, a locking lever for releasing locking of a shutter drive lever for opening and closing a shutter blade by pressing a shutter button, and at least a protrusion of the locking lever. A top plate supporting the locking lever in contact with the top end surface, and a lens-equipped film unit containing an unexposed photographic film, wherein a part of the top end surface of the ridge in contact with the top plate is intermittently provided. A film unit with a lens, wherein a plurality of cutout portions are formed. 2. A C-shaped ridge having both ends extending to the vicinity of the periphery of a disc-shaped number-of-images display plate is integrally formed on an upper surface,
A locking lever for releasing the locking of a shutter driving lever that opens and closes the shutter blades by pressing the shutter button, and a top plate that contacts at least the upper end surface of the protrusion of the locking lever and supports the locking lever. A film unit with a lens, wherein the film unit with a lens is provided with an unexposed photographic film, wherein a notch portion is formed by cutting out a part of an upper end surface of the ridge in contact with the top plate. unit. 3. The film unit with a lens according to claim 2, wherein a plurality of the notches are provided intermittently. 4. A locking lever for releasing locking of a shutter driving lever for opening and closing a shutter blade by pressing a shutter button, and an annular member provided above the locking lever and in contact with at least an upper surface of the locking lever. In a film unit with a lens having a top plate integrally formed on a lower surface thereof and containing an unexposed photographic film, a part of a lower end surface of the ridge contacting the locking lever is cut off. A film unit with a lens, wherein a notch is formed.