JPH036556A - Film cartridge - Google Patents

Abstract

PURPOSE:To easily and distinctly indicate the used or unused state of a film by providing a film member which is broken through by the projecting parts on a camera side when the film cartridge is loaded into a camera on the surface of housings. CONSTITUTION:The film member 73 which is broken through by the projecting parts 56, 57 on the camera side when the film cartridge is loaded into the camera is provided on the surfaces of the housing 31, 32, 33. Since the once loaded film cartridge 1 is thereby put into the ruptured state of a seal, whether the film is used or unused is easily identified. The film cartridge to allow the identification of the used or unused film is obtd. in this way.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a film cartridge for use in a novel film loading system for a camera.

[Conventional technology]

The mainstream film used in current cameras is 35mm format roll film with a cartridge in a standard called I35 film, and the camera itself is
Most of them have a structure compatible with .35 film.

[Problem to be solved by the invention]

A common problem when using 135 film is that the initial loading operation when loading the film into the camera is complicated. It has been developed many times in the past. In the present invention, in order to simplify handling operations when loading film, we have developed a comprehensive film loading system for film and camera that can omit the initial loading operation. Instead of a cartridge, we have developed a cartridge-type film in which the film is wound inside a new housing. With conventional 135 film, the leading edge of unused film is exposed outside the cartridge, and by winding the entire film into the cartridge after shooting, it is difficult to tell whether it is used or not. I recognized it, but
With this cartridge-type film, the entire film, including the leading edge, is housed in the housing, so the leading edge of the film cannot achieve the above-mentioned display function, and can be used to display used or unused information. A display means shall be provided to indicate. The present invention was created in view of the above-mentioned technical problems and to effectively solve them. Therefore, an object of the present invention is to provide a film loading system using a newly developed film cartridge, which has a function of easily and accurately indicating whether the film has been used or not. .

[Means to solve the problem]

The film cartridge according to the present invention has the following configuration in order to meet the above-mentioned technical requirements. That is, a film is wound in a housing to form a film cartridge that is loaded into a camera, and as the film cartridge is loaded into the camera, a membrane member that is pierced by a protrusion on the camera side is inserted into the housing. provided on the surface of On the camera side, there is a protruding part that engages with the film cartridge when the film cartridge is loaded, such as a fork member (hereinafter referred to as spool fork) that engages with the film spool in the film cartridge. A fitting recess corresponding to this protrusion is formed on the side. Therefore, a membrane member is provided to close the mouth of the recess on the housing surface. This membrane member is
For example, it is preferable to use something like a paper seal, and the recess on the housing surface may be the fork retaining hole of the sprocket shaft provided in this film cartridge, in addition to the fork retaining hole of the film spool, or A recess such as a hole that exposes the contact portion of the semiconductor memory can also be used.

[Action and effect of the invention]

According to the film cartridge of the present invention, for example, if a paper seal is attached to the retaining hole of the film spool to cover it, the spool fork on the camera side can be attached to the paper seal by loading the film cartridge into the camera. It breaks through and attaches to the film spool. As a result, even if a film cartridge is loaded into a camera and taken out, the membrane member such as the above-mentioned paper seal is torn, and it can be determined from this that the film cartridge has been used at least once. . In addition, if the user touches the film spool or sprocket shaft with unused film, the film may wind up too much and come off the tin rocket shaft, or conversely, the film may become loose and become loose. However, if there is a membrane member, such problems can be prevented. Further, for example, when a seal is attached to the contact hole of a semiconductor memory as described above, the surface of the contact is protected until it is actually used, and it is also convenient to prevent the contact from becoming dirty.

【Example】

A preferred embodiment of the present invention will be described below with reference to FIGS. 1 to 26. FIG. 1 shows the structure of the film cartridge and its loading mechanism in this embodiment in an exploded perspective view with the film cartridge I unloaded and the back cover 2 closed. First, in the loading mechanism shown at the top of the figure,
The back cover 2 constitutes a part of the bottom surface of the casing (not shown) of the camera body, and by swinging around the rotation axis 4, the back cover 2 opens a space in the camera body in which a film cartridge L is loaded, that is, a cartridge chamber. Open and close 3. In the figure, 5 is a back cover release knob. This knob 5 is held and guided by a casing (not shown) and is slidable in the vertical direction in the figure, and is exposed to the outside of the camera so that it can be operated from outside the casing. It is urged upward in the sliding direction by the spring 6. A back cover locking lever 8 that is rotatable around a shaft 7 is in contact with the lower end of the back cover release knob 5 located at the upper end position. Push one end of the stop lever 8 and rotate the lever 8 around the shaft 7 in the counterclockwise direction in the figure. When the lever 8 rotates counterclockwise, the engagement between one end of the lever 8 and the lock claw lO of the back cover 2 is released, allowing the back cover 2 to swing freely. The lever 8 itself is urged by a spring 9 to rotate clockwise around the shaft 7 in the figure. Therefore, when the back cover release knob 5 is at the top position of its movement range, one end of the lever 8 comes into contact with the lower end of the back cover release knob 5, as shown in the figure, while the other end touches the bottom of the back cover release knob 5 in the closed position. It engages with the lock claw 10 of the lid 2 to lock and hold the back lid 2 in the closed position. In the figure, 11 is an eject lever. This eject lever 11 is configured to push the film cartridge l out of the cartridge chamber 3 from the loaded state in the cartridge chamber 3 by opening the back cover 2, and is held in the above-mentioned casing or the like (not shown). It can be guided and slid in the vertical direction in the figure, and is biased downward by a spring 12, that is, in the direction in which the film cartridge 1 is pushed out. The bent portion 11a at the upper end comes into contact with the upper bottom surface 1a of the loaded film cartridge l, and when the film cartridge l is loaded, the bent portion 11a
receives a pushing force from the film cartridge 1, and conversely, this bent portion 11a pushes out the film cartridge 1 at the time of ejection. A claw 1 is provided on the side of the eject lever 11 and protrudes laterally.
1b is formed. On the other hand, an arm 5a that protrudes laterally is also formed on the side of the back cover opening knob 5, and between these claws 11b and the arm 5a, a "<" sign that can be moved around a central shaft 13 is formed. A letter-shaped locking lever 14 is interposed. When the back cover release knob 5 is pushed down from the state shown in FIG. The lock lever 14 rotates clockwise around the shaft 13, and the engagement between the pawl 11b of the eject lever 11 and the lock lever 14 is also released.
1 is moved downward by the biasing force of the spring 12. At this time, if the film cartridge 1 is loaded in the cartridge chamber 3, it is pushed out from the cartridge chamber 3. When the engagement between the pawl 11b of the eject lever 11 and the locking lever 14 is released, the pawl 11b is located below the locking lever 14 in the figure. This state is also a state in which the film cartridge L is prepared so to speak for loading, and when the film cartridge L is loaded, the upper bottom surface 1a of the film cartridge L is inserted into the bent portion 11 of the eject lever 11.
a is pushed up, and along with this movement, the pawl 11b also moves above the locking lever 14 so as to push the locking lever 14 away. The upper part of the claw 11b is connected to the locking lever 14 when performing this operation.
The slope 11c is formed to be convenient for pushing away. The locking lever 14 is urged by a spring 22 to rotate counterclockwise in the figure, and when the claw 11b pushes the locking lever 14 away and overcomes the locking lever 14 when loading the film cartridge 1, the locking lever 14 is moved again. Ga claw 11
b to hold the eject lever 11 in the state shown in FIG. In the figure, 15 is a shutter actuation lever. The shutter referred to here is a light-shielding shutter as a light-shielding lid provided on the film cartridge I, which will be described later. This shutter actuating lever 15 is biased downward by a spring 17 and is slidable in the vertical direction in the figure as the back cover 2 is opened and closed. That is, when the back cover 2 is closed, the protrusion 1 formed on the back cover 2
When the back cover 2 is opened, the protrusion 16 is released from contact with the protrusion 16 and pulled downward by the biasing force of the spring 17. An inclined portion 15a is formed at the upper end of the lever 15. As shown in FIG. This inclined portion 15a has
One end of a second shutter actuating lever 18 that is rotatable around a rotation center 19 is in contact with the second lever 18 . The second lever 18 is
Further, the other end is locked to one end of a tension spring 20, and is constantly urged to rotate clockwise in the figure. Therefore, as the first lever 15 moves up and down, it is configured to be able to swing while being guided by the inclined portion 15a thereof. On the other hand, the upper bottom surface 1 of the film cartridge l
A is provided with a light-shielding shutter drive section 1b. The second lever 18 is formed with a shutter actuation pin 21 that engages with the light-shielding shutter drive section lb when the film cartridge 1 is loaded in the cartridge chamber 3. The shutter actuation pin 21 is connected to the second lever 1
8, it rotates around the rotation center 19 and acts on the light-shielding shutter drive section-1b to open and close the light-shielding shutter (shown in FIG. 2). FIG. 2 is an exploded perspective view showing the internal structure of the film cartridge I in this embodiment. Overall, the upper lid 31. A cartridge housing is constituted by the bottom cover 32 and the body 33, and a film spool 34 is disposed inside the cartridge housing.
．． Film sprocket 35. A light-shielding shutter 36 is built-in. FIG. 3 is a plan view showing the assembled film cartridge 1 with the top cover 31 removed. The body 33 consists of a large chamber 37 that accommodates a film spool 34 and a small chamber 38 that accommodates a film sprocket 35 and a light-shielding shutter 36. A film outlet 39 is formed in the small chamber 38, and a perforation (not shown) of the roll film 40 wound on the film spool 34 is engaged with a film sprocket 35, and the film 40 is driven by the sprocket 35. The film is sent out from the film outlet 39. FIG. 4 shows a longitudinal cross-sectional view taken along a polygonal line through the respective rotational axes of the film spool 34 and film sprocket 35 of the assembled film cartridge I. The film spool 34 and the film sprocket 35 are rotatably held at both upper and lower ends by the top cover 31 and the bottom cover 32, respectively. This film spool 34
The film sprocket 35 is rotated by engaging with the spool 7 oak and the sprocket fork on the camera side, respectively, and the tips of these engaging parts 34a and 35b are shaped so that the cross-sectional shape is semicircular. Even if these forks and the retaining parts 34a, 35b hit each other at their tips when loading the film cartridge l, the retaining parts 34g, 35b will rotate and escape, so that the fork will not be completely removed. A guarantee will be made. Furthermore, as shown by the dashed line in FIG. 24, if the tip of the camera-side fork 91 is also rounded, either or both of the fork 91 and the cartridge-side engaging portions 34a and 35b will rotate and escape. As a result, complete alignment can be achieved more reliably. Therefore, a space for retracting the 7 oaks and a fork biasing spring are not required, which contributes to a reduction in the number of parts, compactness, and cost reduction. Also, Fig. 4. If the retaining portion 34a is configured in the shape of a single character like the film spool 34 shown in FIG.
However, as shown in Figs. 25 and 26, the hole 92 into which the camera side fork 91' is inserted is If the fork engaging portion is formed by the radially inward protruding portions 34a' arranged equally on the inner circumferential wall of the The rigidity and the rigidity of the mold for molding the seven orcs are also increased, and furthermore, the film spool 34 is less likely to be damaged because it receives rotational force from the plurality of protrusions 34a'. The rotation of the film spool 34 itself also becomes smooth. The light-shielding shutter 36 has arms 3 at two locations above and below.
6a and 36b are provided in a protruding manner, and each tip is formed into an annular portion. Rotating shaft 35a of sprocket 35
The annular portions of the arms 36a and 36b of the light-shielding shutter 36 are fitted in the shading shutter 36, and the light-shielding shutter 36 swings around this rotating shaft 35a to close the film outlet 39 of the body 33.
Open and close. A spring 41 as shown in FIG. 2 is interposed between the lower arm 36b of the light-shielding shutter 36 and the bottom cover 32, and constantly biases the light-shielding shutter 36 in the closing direction of the film outlet 39. ing. Furthermore, a recessed portion is formed in the upper part of the light-shielding shutter 36 as the above-mentioned light-shielding shutter driving section 1b, in which the shutter actuating pin 21 of the film cartridge loading mechanism can be held. Therefore, when the film cartridge 1 is loaded into the loading mechanism section with the light-shielding shutter 36 closed, the shutter operating pin 21 engages with the drive section tb and rotates further, overcoming the biasing force of the spring 41. Light-shielding shutter 36
is rotated to automatically open the film outlet 39. Further, numeral 42 in the figure is a semiconductor memory board that is attached to the top lid 31 and records film information and various types of shooting information (the number of shot films in the film cartridge L).
43 is a lid body serving as a cover thereof. Patterned signal contacts 42a are arranged on the semiconductor memory substrate 42, and each contact is electrically connected to the semiconductor memory chip 42b. A used or unused discrimination signal is recorded on the semiconductor memory board 42, and when a film cartridge l with a used signal recorded is loaded, the camera body performs initial loading of the film. This is controlled to prevent double shooting. Furthermore, a signal indicating the number of film sheets that have been shot is recorded, and if it is not 0, the film is skipped by that number of sheets during initial loading and the film is set so that shooting can start from the beginning of the unused portion. be done. Therefore, even if the film in the film cartridge 1 is rewound and taken out before all of the film has been photographed, when the film cartridge 1 is used again to photograph, the unused portion can be automatically photographed. The TAB tape is used as it is for this semiconductor memory board 42. Therefore, mounting efficiency is improved, and since it is suitable for automatic assembly, reliability is also improved, and it is extremely convenient for mass production. In this way, with the film cartridge l of this embodiment, the film can be rewound even if all the frames of the film have not been photographed, and it is possible to reuse the part that has not been photographed, so initial loading can be repeated. There must be. Therefore, the leading end of the rewound film is always kept in engagement with the film sprocket 35. Specifically, as shown in FIG. 2, a film stopper 44 is attached to the inner peripheral surface of the body 33 of the film cartridge l. On the other hand, as shown in FIG. 5, the film 40 wound in the film cartridge 1 of this embodiment has a perforation 40a formed only on one side, and a stopper retaining hole 40b at the tip of the opposite side. is formed. The film stopper 44 can be locked and removed from the stopper holding hole 40b, and is designed to allow movement of the film in the film feeding direction (arrow B direction in the figure) and in the film rewinding direction (arrow B direction in the figure). In order to restrict the movement of the film beyond the stopper holding hole (input direction), there is provided a protruding portion 44a consisting of a surface inclined to the film surface and a surface substantially perpendicular to the film surface. FIG. 6 shows the structure and operation of the film cartridge constructed as described above and the film feeding mechanism corresponding to its loading mechanism section. FIG. 6(a) shows the operating conditions during initial loading of the film, FIG. 6(b) shows the operating conditions during normal film winding, and FIG. 6(c) shows the operating conditions during film rewinding. A drive motor 51 is provided in a film winding Lisbourg 52 on the camera side, and its driving force is transmitted to a planetary gear section 53 via a gear train of a reduction system. The planetary gear section 53 includes a first gear 53a whose rotation center is fixed, a second gear 53b that moves planetarily in the circumferential direction while meshing with the first gear 53a, and a second gear 53b that moves planetarily in the circumferential direction while meshing with the first gear 53a.
．． The arm lever 53c connects the second gears 53a and 53b and transmits the driving force of the planetary motion to the second gear 53b. A plunger lever 5 that reciprocates as an actuator is attached to one end of this arm lever 53c.
4 is engaged, and 55 is the main body of the plunger device. A cartridge spool fork 56 is located at each position directly above the film spool 34 and film sprocket 35 of the film cartridge L loaded into the cartridge chamber.
The third gear 56a has a cartridge sprocket 7 on its rotating shaft, and the fourth gear 5 has a cartridge sprocket 7 orc 57 on its rotating shaft.
7a are arranged apart from each other. Also, third gear 5
6a has a fifth gear disposed on the opposite side to the fourth gear 57a.
Gear 58 and sixth gear 59 mesh in sequence. The second gear 53b of the planetary gear portion 53 can planetically move and mesh with the fourth gear 57a and the sixth gear 59. The operation of the film feeding mechanism during initial loading is as shown in FIG. 53b is the fourth gear 57a
The film sprocket 35 is rotated counterclockwise in the figure through the fourth gear 57a and the cartridge sprocket fork 57. A film sprocket 35 engages with a perforation of the film wound around a film spool 34 in the film cartridge l, and feeds the film out of a film outlet 39. Initial loading is performed by driving the film sprocket 35 to advance the film until it is wound around the film winding Lisbourg 52. In this operation mode, the rotational speed of the drive motor 51 is slowed down to slow down the film feeding speed in order to prevent accidents such as perforation breakage. The operation of the film feeding mechanism during normal film winding is as shown in FIG. It comes to an intermediate position where it does not mesh with gear 59 either. Therefore, the driving force of the drive motor 51 is not transmitted to the film cartridge l side, and only the film take-up spool 52 is driven to take up the film 40. Next, the operation of the film feeding mechanism when rewinding the film is as shown in FIG.
As a result of the reverse rotation, the arm lever 53c of the planetary gear section 53 rotates clockwise, the second gear 53b meshes with the sixth gear 59, and the film spool 34 is connected to the film spool 34 via the fifth gear 58 and the third gear 56a. Gives clockwise rotation. The photographed film wound on the film take-up spool 52 is rewound onto the film spool 34 and stored in the film cartridge l. As means for detecting whether the film is reliably wound around the take-up spool 52 during initial loading, there are known methods such as mechanical detection and electrical detection, and it does not matter which sensor is used. If the winding is complete, the film is switched to the winding mode by driving the plunger device 55, and if the winding is incomplete, this is detected and the drive motor 51 is reversed to automatically rewind the film. . By doing this, it is possible to reliably prevent an accident in which a film is not wound around the take-up spool and the user takes a picture without noticing it, resulting in a failure in taking a picture. Although not shown, a frame number counting mechanism is attached to the fourth gear 57a. When applying the film cartridge and its loading system as described above, the film cartridge l
is inserted from the bottom side of the camera during loading. In the film cartridge l of this embodiment, as shown in FIG. 7, a color sticker is affixed or printed on the bottom of the film spool 34, which is on the side of the back cover 2 of the camera when loaded, to display a relatively conspicuous color display 71. will be applied. Therefore, on the one hand, by providing a transparent window 72 as shown in FIG. 8 on the back cover 2 of the camera, it is possible to easily determine from the outside of the camera whether or not the film cartridge I is loaded in the cartridge chamber 3. In addition, a pattern display 7 as shown in FIG.
If it is set to 1, the rotation of the film spool 34 can be seen, so the film advance can also be confirmed. Further, as shown in FIG. 1O, for example, the film information may be indicated by characters indicating film information, and if these characters are displayed on the bottom of the film spool 34, it is of course possible to confirm the film advance. Such a configuration is very convenient for matching with the loading direction of the film cartridge I. In other words, if a display is placed on the side of the cartridge l, as with conventional cartridges, there is a risk that the corners or end surfaces of the cartridge may get caught in the maltblen material used for light shielding, and a portion of the side of the film cartridge l may be caught. The cartridge chamber 3 must be arranged so that it can be seen from the outside of the camera, which also poses design constraints. By the way, when providing the transparent window 72 on the back cover 2, there arises the problem of blocking light in that portion. In this embodiment, as shown in FIG. l
This light shielding material 75 comes into elastic contact with the bottom lid 32 of the. In addition, as shown in FIG. 17, the bottom cover 3 of the film cartridge L is
2, a convex annular stepped portion 76 surrounding the film spool 34 may be formed. In this case, as shown in FIG. 18, a concave annular step portion 77 that fits into the convex annular step portion 76 is formed around the transparent window 72 on the inner surface of the back cover 2. Therefore, when the film cartridge 1 is loaded and the back cover 2 is closed, the stepped portions 76 and 77 fit together to bend the path of light, thereby preventing light from entering the cartridge chamber through the gap between them. Cut off. Convex annular stepped portion 7
It is also possible to provide an indication for determining the presence or absence of the film cartridge 1 on the end face of the film cartridge 6 as described above. With this configuration, light can be blocked without using a light blocking material such as maltbrene, contributing to miniaturization and cost reduction. Furthermore, when maltbrene is used, there is a risk that the light shielding function will deteriorate due to changes in the material over time or uneven compression, but there is no such concern with the stepped structure. The film cartridge 1 of this embodiment is designed so that when the film cartridge 1 is removed from the camera after the film has been used halfway, it can be easily determined from the appearance whether the film is used or unused. has been done. That is, as shown in FIG. 11, the camera is placed at the loading position at the entrance of the engaging hole of at least one of the film spool and film sprocket, or at the contact window of the semiconductor memory. A seal 73 that can be easily broken by the side member is attached. therefore,
- Once the film cartridge l is loaded, the seal 73 will be torn as shown in FIGS. 13 and 14, which makes it easy to tell whether the film is used or unused. Can be distinguished. In particular, by pasting the sticker 73 on the window of the contact of the semiconductor memory, it is possible to prevent the contact of the semiconductor memory from becoming dirty and improve reliability. In the case of the example shown in FIG. 11, the above-mentioned camera-side members that break the seal 73 are the cartridge spool fork 56 and the cartridge sprocket fork 5.
7 (all shown in FIG. 6), and in the case of the example shown in FIG.
This is a contact pin 74 as shown in FIG. The contact pin 74 has a sharp tip and can reliably make contact through the seal 73. Since the semiconductor memory board 42 is a flexible printed circuit board and is disposable, there is no problem in piercing it with the contact pins 74. Furthermore, since the contact pin 74 is located deep inside the cartridge chamber 3, there is no danger. Such a configuration does not require any special display mechanism, ensures reliable operation, and can reduce the cost of the film cartridge I itself. In the above-mentioned embodiment, the sticker 73 is attached to a place where the film cartridge l is broken when it is loaded, so that it is possible to distinguish between used and unused film cartridges. It is also possible to affix a recording sticker or the like made of a material or a pressure-sensitive material to a part of the film cartridge 1, and record it on the camera side using heat or pressure so that it can be identified. Figure 19(a)
, (b). (C) and (d) illustrate the locations where these recording stickers 78 are attached to the film cartridge. In this case, as shown in FIG. 20, a heat generating device or a pressure generating device is provided as a recording device 79 at a predetermined location in the cartridge chamber 3 on the camera side. The installation position is, of course, the position facing the recording sticker 78 when the film cartridge l is loaded. The heat generating device or pressure generating device may be one that generates pressure using a known thermal head, a spring means, or the like. Various display examples of records are shown in Figure 21 (a), (b), (c).
), (d), and (a). (a) shows a case where a recording sticker 78 whose color changes with heat or pressure is used. (b) shows a case where characters can also be displayed using a thermal head. (c) shows a case in which the number of film shots or the number of remaining film sheets is displayed numerically in response to midway removal. (d) corresponds to multiple retrievals,
A case is shown in which the number of images taken so far is displayed by color change each time the image is taken out. (e) shows a case where the remaining number of sheets is displayed by color change and numbers, contrary to (d). In the above embodiment, a modification regarding the eject lever 11 will be described. When the film cartridge l is ejected from the cartridge chamber 3 by the eject lever 11 of the above embodiment, the film cartridge l is pushed out by the elastic force of the spring 12, but with such a configuration, the film cartridge l is ejected with considerable force. This may cause a surprise to the user. Therefore, as shown in FIG. 22, if a rack llc is formed on the eject lever 11 and the movement of the eject lever 11 is controlled by a governor 82 via a gear train 81 that meshes with this rack 11c, the film cartridge llc can be moved.
is slowly pushed out. Governor 82 can also be replaced by other similar speed regulating mechanisms. Regarding the means for biasing the light-shielding shutter 36 in the closing direction, in the above embodiment, a spring 41 as shown in FIG. 2 was used as a separate member from the light-shielding shutter 36, but as shown in FIG. A molded spring portion 36c may be used as the biasing means. In such a spring structure,
Durability against repeated loads, temperature creep, etc. tend to be problems, but the reliability of the film cartridge 1 is sufficient because it is not opened and closed repeatedly enough to cause problems.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing the structure of the film cartridge and its loading mechanism in this embodiment, with the film cartridge not loaded and the back cover closed. Fig. 2 is an exploded perspective view showing the internal structure of the film cartridge in this embodiment, Fig. 3 is a plan view showing the assembled film cartridge with the top cover removed, and Fig. 4 shows the film spool and the assembled film cartridge. FIG. 3 is a vertical cross-sectional view taken along a polygonal line through each rotational axis of the film sprocket. FIG. 5(a) is a diagram showing the relationship between the film and the film stopper in this embodiment when viewed from the film surface side, and FIG. 5(b) is a state in which the film stopper and the stopper retaining hole are engaged. FIG. 5(C) is a diagram showing a state in which the film stopper and the stopper retaining hole are disengaged, and FIG. 6(a) is a diagram showing the state in which the film stopper and the stopper retaining hole are disengaged. FIG. 6(b) is a perspective view showing the operating condition of the film feeding mechanism during film loading, and FIG.
Figure (c) is a perspective view showing the operating state of the film feeding mechanism of this embodiment during film rewinding. FIG. 7 is a diagram showing the presence of film cartridges in this embodiment, FIG. 8 is a perspective view showing the transparent window of the camera back cover in this embodiment, and FIG. 9 and 1θ are diagrams showing other embodiments. A diagram showing an indication of the presence of film cartridges in an example,
FIG. 11 is a diagram showing a sticker indicating whether a film cartridge is used or not in this embodiment, FIG. 12 is a diagram showing a sticker indicating whether a film cartridge is used or not in another embodiment, and FIG. 13 is a diagram showing the used state of the seal in FIG. 11, FIG. 14 is a diagram showing the used state of the seal in FIG. 12, and FIG. 15 is a diagram showing a situation in which a contact pin breaks the seal in FIG. FIG. 16 is a sectional view showing the light shielding structure around the camera back in this embodiment, and FIG.
The figure is a perspective view showing the bottom surface of the bottom cover of a film cartridge with a light-shielding structure in another embodiment, FIG. 18 is a sectional view showing a light-shielding structure around the back cover in another embodiment, and FIG. Diagram showing where stickers can be pasted,
FIG. 20 is a diagram showing a recording sticker and a recording device for the recording sticker in this embodiment, FIG. 21 is a diagram showing a display mode of the recording sticker in this embodiment, and FIG. 22 is a film cartridge in another embodiment. FIG. 23 is a perspective view showing the light-shielding lid of a film cartridge in another embodiment; FIG. 24 is a fork engaging portion of the film spool of the film cartridge in this embodiment; 2nd cross-sectional view showing
FIG. 5 is a plan view showing a fork retaining portion of a film spool in another embodiment, and FIG. 26 is a sectional view showing the fork engaging portion of FIG. 25 and a corresponding camera-side fork. l...Film cartridge';, 31.32.33.
・Top cover, bottom cover, body, 40 as a housing...
Film, 56, 57. 74... Spool fork as a protrusion on the camera side, sprocket fork, contact pin, 73... Seal as a membrane member Patent applicant

Claims (1)

[Claims] (1) The film (40) is wound in the housing (31, 32, 33) to form a film cartridge (1) to be loaded into the camera, and as the film cartridge is loaded into the camera, The membrane member (73) that is pierced by the projections (56, 57, 74) on the camera side is connected to the housing (31, 3).
2, 33) A film cartridge characterized in that it is provided on the surface of the film cartridge.