JPH0375637A - Photographic film cartridge - Google Patents

Abstract

PURPOSE:To automatically feed a photographic film out of the inside of the cartridge by driving and rotating a sprocket wheel engaging with perforations from the outside. CONSTITUTION:A semicircular cylindrical body 5a of a light shielding means 5 exists in the 1st position perpendicular to a photographic film drawing out port 8 and maintains the light shielding state in a cartridge body 4 to prevent the additional advance of the light advancing from the photographic film drawing out port 7 into the cartridge body 4. The front end of the photographic film 3 exists just before the semicircular cylindrical body 5a while the perforations 3a are held engaged with the projecting parts 6a of the sprocket wheel 6. The semicircular cylindrical body 5a is rotated 90 deg. counterclockwise and is thereby moved to a 2nd position, by which the photographic film drawing out passage 8 held closed by the semicircular cylindrical body 5a is communicated with the photographic film drawing out port 7. The photographic film is automatically delivered from the inside of the cartridge 1 to the outside of the cartridge 1 in this way.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a photographic film cartridge.

[Prior Art] In conventional photographic film cartridges, the photographic film is not tightly wound around the spool inside the cartridge, but is stored in a loosely wound state. In this state, photographic film cannot be fed out even if the spool is rotated in the opposite direction to the film winding direction. For this reason, it was necessary to pull out the end of the photographic film by an appropriate length outside the cartridge in advance, and then load this end of the film into the film feed mechanism inside the camera (for example, Utility Model 60-16143 Publication No.).

[Problem to be solved by the invention]

However, this operation requires a certain degree of skill, and
This is a time-consuming operation, and a camera that does not require such an operation has been desired.

Such a camera can be realized by allowing photographic film to be fed out from inside the cartridge. If photographic film can be fed out from inside the cartridge, the leading edge of the film can be fed out and engaged with the film feeding mechanism inside the camera, making it unnecessary to pull out the leading edge of the film outside the cartridge in advance. There is also no need to load the end of the film into the film transport mechanism within the camera.

The present invention has been made in view of this point, and an object of the present invention is to provide a photographic film cartridge that can automatically feed photographic film from inside the cartridge.

[Means to solve the problem]

In order to achieve this object, the photographic film cartridge according to the present invention consists of a spool, a photographic film whose one end is locked to the spool and wound around the spool in the form of a roll, and a cartridge main body, and the spool is connected to the cartridge. A photographic film cartridge that is rotatably attached to the inside of the main body around an axis, and the cartridge main body is provided with a light shielding means capable of maintaining a light shielding state inside the cartridge main body, and a photographic film drawer opening for pulling out the photographic film. Equipped with means for extracting photographic film.

One of the photographic film draw-out means is a sprocket wheel provided inside the cartridge main body near the photographic film draw-out opening. This sprocket wheel is provided so as to engage at least one of the perforations provided on both sides of the photographic film in the width direction, and is rotatable and can be driven from outside the cartridge body. It is set up like this. Furthermore, the entire photographic film is stored inside the cartridge body.

Another type of photographic film pulling means is a film feeding member provided inside the cartridge main body. With the adoption of this film feeding member, arc-shaped openings centered on the axial center of the spool are formed on both end faces of the cartridge main body in the axial direction and perpendicular direction. The film feeding member includes an engaging portion that engages with the outermost peripheral surface of the photographic film, and a protruding portion that protrudes from the opening of the cartridge main body and can freely slide along the opening. Furthermore, the entire photographic film is stored inside the cartridge body.

In addition, in order to achieve the above object, another aspect of the photographic film cartridge according to the present invention includes a spool, a photographic film that is wound in a roll around the spool with one end locked to the spool, and a cartridge main body. In a photographic film cartridge that is rotatably mounted around an axis inside the cartridge main body, the spool has one side surface extending in the axial direction of the cartridge main body that is parallel to one of the edges parallel to the axial direction of the cartridge main body. is formed so as to be able to swing freely about the edge of the cartridge, and the side surface has an engaging portion that engages with the leading edge or the outermost peripheral surface of the photographic film on the other side, and the leading edge of the photographic film is connected to the cartridge main body. It is characterized by being stored inside.

[For production]

These photographic film pulling means allow photographic film to be automatically fed out from the cartridge. In other words, the sprocket wheel engaged with the perforation is driven from the outside and rotates, or one side of the cartridge body that can swing is made to swing by a mechanism on the camera side, whereby the photographic film is attached to the cartridge body. A drawer opening is formed, and the photographic film engaged with the side surface moves with the swinging of the side surface, or the film feeding member engaged with the photographic film moves along the opening of the end surface of the cartridge main body. By sliding, the photographic film can be sent out from the photographic film drawer opening of the cartridge main body.

〔Example〕

A first embodiment of the present invention is shown in FIGS. 1 and 2. FIG. FIG. 1 is a perspective view showing the inside of a photographic film cartridge according to the present invention, and FIG. 2 is a sectional view taken in a direction perpendicular to the cartridge axis.

The photographic film cartridge 1 consists of a spool 2, a photographic film 3 whose end is locked to the spool 2 and wound around the spool 2 in a roll shape, a cartridge main body 4, a light shielding means 5, and a pair of sprocket wheels 6.

The spool 2 is attached to the cartridge body 4 inside the cartridge body 4.
is rotatably mounted around the axis of the The cartridge main body 4 is provided with a photographic film drawer opening 7 for pulling out the photographic film 3, and the inside of the cartridge main body 4 is kept in a light shielding state by a light shielding means 5. The light shielding means 5 consists of a columnar body 5a having a semicircular cross section, and a shaft 5b extends from both end faces of the columnar body 5a. The shaft 5b has an enlarged diameter portion 5c at its end, and the enlarged diameter portion 5c is pivotally supported by the cartridge main body 4. A square hole 5d is provided in the enlarged diameter portion 5c concentrically with the axis of the shaft 5b. The cartridge main body 4 has a semi-cylindrical body 5a having a center on a photographic film draw-out passage 8 leading to the photographic film draw-out opening 7 and a four-piece concentrically with the axis of the shaft 5b so that the semi-cylindrical body 5a can freely pivot. A half-shaped gap 9 is formed, and the semi-cylindrical body 5a has its plane part perpendicular to the photographic film pull-out passage 8 (the first position shown in FIG. A second position (second position) parallel to passage 8
(the position shown in the figure).

The pair of sprocket wheels 6 each have protrusions 6a on both sides of the photographic film 3 in the width direction with the same pitch as the longitudinal spacing of the photographic film 3 of the alperforation 3a. It is located at a position slightly closer to the spool 2 than the light shielding means 5, and at a position where the protrusion 6a engages with the lower color half-orage 3a of the perforation 3a. The pair of sprocket wheels 6 are integrally connected by a shaft 6b, which extends through the sprocket wheel 6 and forms an enlarged diameter portion 6C at its end. Expanded diameter i
6c is pivotally supported by the cartridge main body 4,
The enlarged diameter portion 6C has a square hole 6 concentric with the axis of the shaft 6b.
d is provided.

The leading end of the photographic film 3 is located in front of the light shielding means 5.

The photographic film cartridge 1 having the above structure operates as follows.

Photographic film cartridge 1 is the first cartridge before loading it into the camera.
It is in the state shown in the figure. That is, the semi-cylindrical body 5a of the light shielding means 5 is located at the first position perpendicular to the photographic film draw-out passage 8, and prevents the light entering from the photographic film draw-out opening 7 from further entering the inside of the cartridge main body 4.
The interior of the cartridge main body 4 is kept in a light-shielded state. The photographic film 3 is attached to the semi-cylindrical body 5a with the perforations 3a engaged with the projections 6a of the sprocket wheel 6.
Its tip is located just in front.

When the photographic film cartridge I is loaded into the camera, an engaging member (not shown) with a square prism cross section provided on the camera side engages the square hole 5d of the enlarged diameter portion 5c and the enlarged diameter portion 6c.
It engages with both of the square holes 6d. The camera-side engaging member engaged with the square hole 5d is the enlarged diameter portion 5c and the q-axis 5.
The semi-cylindrical body 5a is rotated 90 degrees counterclockwise in FIG. 2 via the arrow b. Due to this rotation, the semi-cylindrical body 5a
moves from the first position to the second position (the position shown in FIG. 2), and the photographic film draw-out passage 8, which was blocked by the semi-cylindrical body 5a, communicates with the photographic film draw-out opening 7. Next, the camera-side engaging member engaged with the square hole 6d rotates the pair of sprocket wheels 6 counterclockwise in FIG. 2 via the enlarged diameter portion 6C and the shaft 6b. Since the protrusion alE 6 a of the sprocket wheel 6 engages with the perforation 3 a of the photographic film 3,
By rotating the sprocket wheel 60 in the counterclockwise direction, the photographic film 3 is fed out in the direction of the photographic film outlet 7, and is sequentially fed out from the photographic film outlet 7 as indicated by the arrows in FIG.

After the photographic film 3 is fed out from the photographic film drawer 7, the film feed mechanism (not shown) on the camera side
engages with the photographic film 3 and guides the photographic film 3 to a predetermined exposure position.

Alternatively, in this case, the feeding length of the photographic film 3 can be adjusted by adjusting the rotation speed of the engaging member on the camera side, and this can be used to position the photographic film 3 at a predetermined exposure position. You can also send it.

After photographing is completed, the photographic film 3 can be rewound into the cartridge main body 4 by rotating the sprocket wheel 6 clockwise.

Various modifications can be made to this embodiment, and these are also included within the scope of the present invention.

For example, it is not necessary to provide two sprocket wheels 6 as in this embodiment, but it is also possible to provide one sprocket wheel 6 that engages only one of the perforations 3a. Also,
As in this embodiment, the two sprocket wheels 6 may not be integrally connected by a shaft, but may be driven independently. In this case, it is not necessary to connect the two sprocket wheels 6 with the shaft 6b.

Further, the sprocket wheel 6 may be engaged with the photographic film 3 from either the top or bottom of the photographic film 3.

The means for externally driving the sprocket wheel 6 does not necessarily have to be a combination of the enlarged diameter R6c and the square hole 6d as in this embodiment, and it is sufficient to use other well-known conventional means.

Furthermore, the light shielding means 5 is not limited to the semi-cylindrical body 5a of this embodiment, and other light shielding means may also be used. For example, a "terremp" currently used as a light shielding means for cartridges may be used, or a door-like member may be configured to open and close in the vertical direction as shown in FIG. 2 to maintain the light shielding of the photographic film drawer opening 7. You can also do this.

A second embodiment is shown in FIGS. 3(a) and 3(b).

3rd ffl(a) and (b) are sectional views showing the inside of the photographic film cartridge and the state in which the photographic film is pulled out according to the present embodiment.

In FIG. 3(a), the photographic film cartridge 11 is composed of a spool 12, a photographic film 13 which is locked at one end to the spool 12 and wound into a roll around the spool 12, and a cartridge body 14.

The spool 12 is mounted inside the cartridge main body 14 so as to be rotatable around the axis of the cartridge main body 14.

The lid member 15 of the cartridge main body 14 is pivotally supported on the side wall 14a of the cartridge main body 14 with a shaft 1.5a at one edge, and the lid member 15 is pivoted around this shaft 15a.
．． can swing freely. The lid member 15 forms a right angle 815b at its tip, and the right angle portion 15b abuts against the side wall 14a of the cassette main body 14, thereby maintaining the light shielding state inside the cassette main body 14. Photographic film 13
The tip is immediately before the right angle part 15b or
It is located in contact with the An engaging member 16 is engaged with each of perforations (not shown) on both sides of the photographic film 13 in the width direction near the right-angled portion 15b. The engaging member 16 has a hemispherical convex portion 16a on its lower surface, and this hemispherical convex portion 16a engages with a perforation of the photographic film 13. The engagement member 16 has a pivot portion 16b on its upper surface, and is pivotally connected by a rod 17 to a pivot portion 15c provided on the lower surface of the lid member 15 near the right angle R15b. Furthermore, the lid member 15 has a right angle 8
A small shaft (
(not shown) is formed to protrude.

The photographic film cartridge 11 according to this embodiment operates as follows.

The photographic film cartridge 11 is loaded into the camera with the lid discharger 5 closed, as shown in FIG. 3(a). An engagement mechanism provided on the camera side engages small shafts (not shown) at both ends of the right-angled portion 15b, and the lid member 15 is connected to the shaft 15a.
Swing clockwise around the center. As the lid member 15 swings, a photographic film outlet is formed between the lower surface of the right-angled portion 15b and the side wall 14a of the cartridge main body 14.

Further, as the lid member 15 swings, the engaging member 16 begins to move to the left in FIG. 3(H) via the rod 17. Since the hemispherical convex portion 16a, which is a part of the engaging member 16, is engaged with the photographic film 13, the photographic film 1
3 is pulled by the hemispherical convex portion 16a and sent out to the left in FIG. Reach outside. Lid member 1
5 progresses, the hemispherical convex portion 16a of the engaging member 16 is released from engagement with the photographic film 13. The photographic film 13 remains stationary at the time of disengagement, but after that the photographic film transport mechanism on the camera engages with the photographic film 13' and transports the photographic film 13 to a predetermined exposure position.

When photography is completed, a mechanism on the camera side rotates the spool 12 in a direction to rewind the photographic film 13, thereby rewinding the photographic film 13. When all of the photographic film 13 is rewound inside the cartridge main body 14, the camera-side engaging mechanism that was engaged with small shafts (not shown) at both ends of the right-angled portion 15b rotates the lid member 15 around the shaft 15a. Swing it counterclockwise to close the lid member 15 and remove the photographic film cartridge 1.
Keep it out of the light again. After this, the photographic film cartridge 11 can be removed from the camera.

Various modifications can be made to this embodiment, and these are also included within the scope of the present invention.

For example, instead of providing the engaging member 16 with the hemispherical convex portion 16a and engaging the photographic film 13, the engaging member 1
The lower surface of 6 is flat, and adhesive means with weak adhesive force such as adhesive tape, or photographic film 13 is attached to the lower surface.
By forming a friction member that generates a frictional force between the opening and closing surface 15, the photographic film 13 can be fed out as the opening/closing surface 15 swings.

Further, in addition to the perforations, an engagement hole may be provided in the photographic film 13, and the hemispherical convex portion 16a of the engagement member 16 may be engaged with the hole.

As the light shielding means, it is also possible to use a "terremp" as in the first embodiment without forming the right angle part 15b.

A modification of the second embodiment is shown in FIG. 4 and FIGS. 5(a) and 5(b). FIG. 4 is a perspective view of a photographic film cartridge according to this modification, and FIGS. 5(a) and 5(b) are sectional views showing the interior of the photographic film cartridge and the state in which the photographic film is pulled out.

In FIG. 5(a), the photographic film cartridge 21 consists of a spool 22, a photographic film 23 which is locked at one end to the spool 22 and wound around the spool 22 in a roll shape, and a cartridge main body 24.

The spool 22 is mounted inside the cartridge main body 24 so as to be rotatable around the axis of the cartridge main body 24.

The cartridge main body 24 includes a lid member 25 which is pivotally supported by a side wall 24a of the cartridge main body 24 with a shaft 25a and is swingable about the shaft 25a. The lid member 25 is the fifth
As shown in Figure (a), the side wall 24a of the cartridge main body 24
It can swing between a first position where it is in close contact with the main body 24 and a second position where it is away from the side wall 24a of the cartridge body 24 as shown in FIG. The lid member 25 has a surface 25b that is flush with the photographic film drawer surface 24b of the cartridge main body 24 in the first position, and has perforations (not shown) on both sides of the photographic film 23 in the width direction on the surface 25b. A convex engagement n 25 c is formed to engage with each of the opening and closing surfaces 25c on the surface 25b of the lid member 25.
A convex R25d is formed over the entire longitudinal direction of 5. The photographic film 23 is stored inside the cartridge body 24 with the perforations engaged with the engaging portions 25c, and the tip of the photographic film 23 is located at the convex portion 25d.
or is located immediately in front of the convex portion 25d.

Furthermore, the cartridge main body 24 includes
An upper lid 26 is provided which can swing around a shaft 26a pivotally supported on a side wall 24a.

The upper lid 26 is moved from the first position to the fifth position as shown in FIG. 5(a).
It can swing between a second position as shown in Figure (b).

When the upper lid 26 is in the first position shown in FIG.
5d, the interior of the cartridge main body 24 is kept in a light-shielding state.

A pair of cylindrical small shafts 27 are formed protruding from both ends of the lid member 25 at appropriate positions above, and similarly, a pair of small shafts 28 are formed near the recess 26b at both ends of the top lid 26. It is formed.

The photographic film cartridge 21 in this modification operates as follows.

The photographic film cartridge 21 is loaded into the camera in the state shown in FIG. 5(a). After loading the cartridge 21, the first engagement mechanism on the camera side engages with the small shaft 28 of the top lid 26, and moves the top lid 26 clockwise around the shaft 26a from its first position (FIG. 5(a)). Swing it to the second position (see Figure 5). The first engagement mechanism on the camera side places the top cover 26 in its second position. Next, the second engagement mechanism on the camera side engages the small shaft 2.
7, swings the lid member 25 counterclockwise around the shaft 25a, and moves the opening/closing surface 25 to its first position (see FIG. 5).
a)) to the second position (Fig. 5(b)).

Since the photographic film 23 is engaged with the engaging portion 25c formed on the surface 25b, the perforation is engaged with the engaging portion 25c formed on the surface 25b.
5 to the second position, the photographic film 23 moves to the fifth position.
In Figure (b), the cartridge main body 2 is
4 Sent to the outside.

After the photographic film 23 has been fed out to a certain extent, the lid member 2
5 reaches its second position, the engagement between the engaging portion 25c and the perforation of the photographic film 23 is released. At the time of this release, a considerable length of the photographic film 23 has been fed out of the cartridge main body 24. Thereafter, a photographic film transport mechanism (not shown) on the camera side engages with the photographic film 23 and thereafter transports the photographic film 23 to a predetermined exposure position.

When all of the photographic film 23 has been photographed, the spool 22 is rotated clockwise by the drive mechanism on the camera side, and the photographic film 23 is rewound.

When all the photographic films 23 are rewound into the cartridge main body 24, the second engagement mechanism on the camera side swings the lid member 25 clockwise, and the lid member 25 is moved to its first position (Fig. 5(a). )), and then the first engagement mechanism on the camera side swings the top lid 26 counterclockwise, returning the top lid 26 to its first position (FIG. 5(a)).

In this way, the photographic film cartridge 21 is shown in FIG. 5(a).
It returns to the state before it was loaded into the camera, as shown in , and can be removed from the camera.

Similar to the second embodiment, various modifications can be made to this modified example, and these are also included within the scope of the present invention.

For example, instead of the engaging portion 25c, an adhesive means having a weak adhesive force such as an adhesive tape, or a friction member that generates a frictional force with the photographic film 23 may be formed.
Further, in addition to the perforations, the photographic film 23 may be provided with a hole into which the engagement n 25 c engages.

As the light shielding means, a "terremp" may be used instead of the combination of the convex portion 25d of the lid member 25 and the recessed portion 26a of the upper lid 26.

Further, in this modification, the upper lid 26 is configured to be swingable around the shaft 26a, but instead of this configuration, the upper lid 26 is
6 is fixed at the shaft 26a, and a first engagement mechanism on the camera side engages with the small shaft 28 to lift the top lid 26 and flex the top lid 26, thereby moving the top lid 26 to the second position. You can also do it.

A third embodiment is shown in FIGS. 6 and 7. FIG. 6 is a side view of the photographic film cartridge according to this embodiment, and FIG. 7 is a sectional view taken along a plane passing through the axis of the spool.

The photographic film cartridge 31 consists of a spool 32, a photographic film 33 which is locked at one end to the spool 32 and wound around the spool 32 in a roll shape, a cartridge main body 34, a light shielding means 35, and a photographic film feeding member 36.

The spool 32 is mounted inside the cartridge main body 34 so as to be rotatable around the axis of the cartridge main body 34. The cartridge main body 34 is provided with a photographic film drawer opening 37 for pulling out the photographic film 33, and the inside of the cartridge main body 34 is kept in a light-shielded state by a light-shielding means 35.

The light shielding means 35 consists of felt-like members 35a provided above and below the photographic film draw-out passage 38 at a certain distance from the photographic film draw-out opening 37 toward the inside of the cartridge main body 34. It is commonly called "telempu". The photographic film 33 is stored with its leading end aligned with the photographic film drawer opening 37.

As shown in FIG. 6, arc-shaped openings 39 are formed in both end surfaces of the cartridge main body 34 perpendicular to the axis of the spool 32. The opening 39 has an arc shape centered on the axis of the spool 32, and the photographic film 3 wound on the spool 32 is opened.
It is formed so as to be located at approximately the same position as the outermost peripheral surface of No. 3. The length of the arc of the opening 39 is determined depending on the length to which the leading end of the film 33 is to be sent out from the photographic film outlet 37. Further, the opening 39 is covered with a light-shielding curtain 40 to prevent outside light from entering through the opening 39.

The photographic film feeding member 36 has a pair of engaging portions 36a that engage from above with each of the perforations on the outermost surface of the roll of photographic film 33 wound on the spool 32.
and a protrusion 36b that protrudes from the opening 39 and can freely slide within the opening 39 along the opening 39. Although the opening 39 is provided with a light-blocking curtain 40, the protrusion 36b can slide through the opening 39 without being obstructed by the light-blocking curtain 40.

The photographic film cartridge 31 according to this embodiment operates as follows.

The photographic film cartridge 31 is loaded into the camera in the state shown in FIG. As shown in FIG. 6, the projecting portion 36b of the photographic film feeding member 36 is initially
It is located at the bottom of the . Photographic film patrone 3
1 is loaded into the camera, an engaging mechanism (not shown) on the camera side engages with the protrusion 136b of the photographic film feeding member 36, respectively. When photographing, this camera-side engagement mechanism moves the protrusion 36b inside the opening 39 along the sixth opening 39.
Slide it counterclockwise in the figure to the top end of the opening 39. Since the photographic film 33 is engaged with the photographic film feeding member 36 via the engaging portion 36a, as the photographic film feeding member 36 slides, the photographic film 33
is fed together with the photographic film feeding member 36. As a result, the leading end of the photographic film 33 is sent out from the photographic film outlet 37 by the same length as the sliding distance of the photographic film delivery member 36. Near the top end of the opening 39 is the position where the photographic film 33 is separated from the roll of photographic film 33 and sent to the photographic film outlet 37, so that the protrusion! When 36b slides to the uppermost end of opening 39 and stops there, the engagement between the perforations of photographic film 33 and engaging portion 36a is released.

After this, the photographic film feeding mechanism on the camera side engages with the leading end of the photographic film 33 that has been fed out, and the photographic film 33
to the predetermined exposure position.

After photographing is completed, the spool 32 is rotated in the film rewinding direction (clockwise in FIG. 6) by a mechanism on the camera side, and the photographic film 33 is rewound into the cartridge main body 34.

Various modifications can be made to this embodiment as well, and these are also included within the scope of the present invention.

For example, as a means for engaging the photographic film 33 and the photographic film feeding member 36, instead of engaging the engaging portion 36a with the perforation, the adhesive means or friction member mentioned in the above embodiment may be used. Alternatively, a hole other than a perforation may be formed in the photographic film 33 as the hole to which the engagement member 36a engages.

It is also possible to install an elastic member in a biased state with respect to the photographic film feed member 36, and release the bias by a drive means on the camera side to feed the film.

In addition, the light shielding means is a "terremp" as in this embodiment.
However, the present invention is not limited to this, and other light shielding means can also be used.

Further, the position of the arc of the opening 39 does not necessarily have to be at the same position as the outermost peripheral surface of the roll of photographic film 33, but may be at another position. It is sufficient to form the photographic film feeding member 36 so that the protrusion R36b fits in that position.

〔Effect of the invention〕

According to the present invention, it is possible to automatically feed photographic film from the inside of the cartridge to the outside of the cartridge. This allows the fed-out photographic film to be engaged with the photographic film advance mechanism on the camera side, making it unnecessary to pull out the film end to the outside of the cartridge in advance. There is no need to load the feed mechanism.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the inside of a photographic film cartridge according to an embodiment of the present invention, FIG. 2 is a sectional view of the photographic film cartridge of FIG. 1, and FIGS. 3(a) and (b) are other embodiments. FIG. 4 is a sectional view showing the inside of the photographic film cartridge according to the example and the state in which the photographic film is pulled out; FIG. 4 is a perspective view of the photographic film cartridge according to another example; FIG. 5(a);
6) is a sectional view showing the inside of the photographic film cartridge and the state in which the photographic film is pulled out according to this embodiment;
The figure is a side view of a photographic film cartridge according to another embodiment of the present invention, and FIG. 7 is a sectional view of the photographic film cartridge of FIG. 6. [Explanation of codes] 1.11.21.31... Photographic film cartridge 2
．． 12.22.32... Spool 3.13.23.33... Photographic film 4.14.2
4.34...Patrone body 5...Shading means
5a...Semi-cylindrical body 5b...Axis 5C
...Enlarged diameter portion 5d...Square hole 6...Sprocket wheel 6a...Protrusion 6b...
Shaft 6c...Enlarged diameter portion 6d...Square hole 7.
37...Photographic film drawer opening 8.38...Photographic film drawer passage 9...Gap 15...Lid member 15a...Shaft 15b...
Right angle portions 15c, 16b... Pivotal portion 16... Engagement member 16a... Hemispherical convex portion 24a...
Side wall 24b... Photographic film drawer surface 25... Lid member 26... Upper lid 27.28.
... Small shaft 25a, 26a ... Shaft 25b ... Surface
25c...Engaging portion 25d...Right angle 8 2
6b...Recess...Light shielding means...Photographic film feeding member a...Engaging part 36b...Protrusion...Opening
40...Blackout curtain diagram (b) Kaya 4 Figure 50

Claims (3)

[Claims] (1) Consisting of a spool, a photographic film that is locked at one end to the spool and wound around the spool in the form of a roll, and a cartridge main body, the spool is attached inside the cartridge main body so as to be rotatable around an axis, and the In a photographic film cartridge, the cartridge main body is provided with a light shielding means capable of maintaining a light shielding state inside the cartridge main body and a photographic film drawer opening for pulling out the photographic film, and inside the cartridge main body near the photographic film drawer opening, At least one sprocket wheel is rotatably provided so as to engage with at least one of the perforations provided on both sides of the photographic film in the width direction, and can be driven from outside the cartridge main body. The photographic film cartridge is further characterized in that the leading end of the photographic film is housed inside the cartridge main body. (2) A photographic film consisting of a spool, one end of which is locked to the spool and wound around the spool in the form of a roll, and a cartridge main body, the spool being rotatably mounted around an axis inside the cartridge main body. In the film cartridge, one side surface of the cartridge main body extending in the axial direction is formed so as to be swingable about one of the edges parallel to the axial direction of the cartridge main body, and the side surface extends on the other side. A photographic film cartridge having an engaging portion that engages with a leading end or an outermost peripheral surface of the photographic film, the leading end of the photographic film being housed inside the cartridge main body. (3) consisting of a spool, one end of which is locked to the spool, and a photographic film wound around the spool in a roll; and a cartridge main body; the spool is mounted inside the cartridge main body so as to be rotatable around an axis; In a photographic film cartridge, the cartridge main body is provided with a light shielding means capable of maintaining a light shielding state inside the cartridge main body, and a photographic film drawer opening for pulling out the photographic film. An arc-shaped opening centered on the axis of the spool is formed, and an engaging portion that engages with the outermost peripheral surface of the photographic film is formed inside the cartridge body, and an engaging portion that protrudes from the opening of the cartridge body. A photographic film cartridge, characterized in that a film feeding member having a protrusion that can freely slide along the opening is provided, and a leading end of the photographic film is housed inside the cartridge main body.