JP3740687B2 - Film integrated camera - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a film-integrated camera preloaded with a photographic film cartridge.
[0002]
[Prior art]
A photographic film cartridge loaded in such a film-integrated camera, for example, allows a film to be inserted into and removed from an entrance provided in the shell by rotating a spool. A use state display member is engaged with one shaft end of the spool, and a plurality of cutout windows are opened in a shell adjacent to the use display member, and further, the spool is rotated and rotated while the film is wound up. Some include a lock member that restricts rotation of the door.
[0003]
In such a photographic film cartridge, when shooting is finished and the film is wound up by the winding knob, the door driver is interlocked with the rotation of the winding knob by the film winding, and the rotating door is closed and locked by the rotation of the rotating door. The member is operated to display the use state on the cutout window so that the film is not accidentally exposed when the photographic film cartridge is taken out from the film-integrated camera.
[0004]
[Problems to be solved by the invention]
The door driver is interlocked with the rotation of the hoisting knob, and the rotation of the revolving door is not completed due to backlash and product tolerances that occur during the process of closing the revolving door, or due to bending or kinking that occurs on the revolving door. The lock member is actuated by the movement to restrict the rotation of the spool and the rotation of the revolving door, and the use state may be displayed on the cutout window. For this reason, when developing after photographing, there is a risk of exposure from the gap of the rotating door when taking out the photographic film cartridge from the film-integrated camera.
[0005]
The present invention has been made in view of these points, and an object of the present invention is to provide a film-integrated camera that reliably closes the rotating door of a photographic film cartridge and prevents the film from being accidentally exposed.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems and achieve the object, the invention according to claim 1 enables the film to be inserted into and removed from an inlet / outlet provided in the shell by rotating the spool,
The door is provided with a revolving door that can be opened and closed,
A use state display member is engaged with one shaft end of the spool,
A plurality of cutout windows are opened in the shell adjacent to the use state display member,
Loading a photographic film cartridge comprising a locking member for restricting the rotation of the winding rotation and the rotary door of the spool at the end of the state of the film,
The door driver is interlocked with the rotation of the hoisting knob from the state where the winding of the film is completed, and the rotating door is rotated and closed, and the rotating member is operated by rotating the rotating door to rotate the spool. In the film-integrated camera that moves the use state display member and displays the use state on the cutout window,
The protrusion of the lock member is located in the trough of the tooth wheel formed on the spool by turning when the revolving door is closed, and the use state is displayed on the cutout window,
The revolving door finishes closing after the use state switching display,
Delaying the closing end timing of the revolving door of the switching timing of the display of the usage state, and wherein said that constitute the revolving door closed Owa to so that after switching the display of the usage state. Because the closing end timing of the revolving door is delayed from the switching timing of the use state display, and the display of the use state is switched, the revolving door is closed. Therefore, backlash and product tolerances that occur during the revolving door closing process, or bending that occurs in the revolving door Even if kinking or the like occurs, the revolving door can be reliably closed without being locked, and the film can be prevented from being accidentally exposed.
[0007]
According to a second aspect of the present invention, the protrusion of the lock member is formed by a crest and a valley formed concentrically at one end of the spool by the rotation of the cam when the rotary door is closed. located in, it is characterized by being configured such that the revolving door finishes closed after this. Since the protrusion of the lock member is positioned in the trough of the toothed wheel, the rotary door finishes closing, so that the rotary door can be reliably closed without being locked by the lock member.
[0008]
The invention according to claim 3 is characterized in that the display of the use state is exposed. The user can be surely notified that the exposure has been completed.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the film-integrated camera of the present invention will be described. Fig. 1 is a plan view of the upper part of the film-integrated camera with the camera cover removed, and Fig. 2 is a plan view of the upper part of the film-integrated camera with the camera access cover removed and the tool access cover indicated by a two-dot chain line. 3 is a side view of the upper part of the film-integrated camera with the camera cover removed, FIG. 4 is an exploded perspective view of the photographic film cartridge, and FIGS. 5 and 6 are viewed from one end and the other end of the photographic film cartridge. FIG. 7 is a perspective view showing an appearance, FIG. 7 is a perspective view of the film spool constituting the photographic film cartridge, and FIG. FIG . 10 is a side view seen from one side of the photographic film cartridge, showing that the use state of the film can be displayed, and FIG. 10 is a view showing a state in which the revolving door is operated.
[0010]
The film-integrated camera 100 is a simple camera that is commercially available with the photographic film cartridge 1 loaded. The photographic film cartridge 1 is loaded in the camera assembly process, and the user's film 29 is loaded and unwound. Is no longer necessary, and the user can immediately take a picture.
[0011]
This film-integrated camera 100 is configured by assembling a front cover 102 and a rear cover 103 from both sides to a camera main body 101, and a photographic film cartridge 1 is loaded in a cartridge housing portion 104 on the right side of the camera main body 101. . The photographic film cartridge 1 is constructed as shown in FIGS. 4 to 9, and almost all of the components shown in these figures are made of a plastic member in which carbon black is kneaded for light shielding.
[0012]
These components include a shell 3 including a pair of shell tops 5 and a shell bottom 7, and a spool 11 that locks the leading end of the film 29 to the core 15 and enables winding and feeding. It is incorporated in a rotatable manner. A rotary door 9 is provided at the entrance / exit of the shell 3 through which the film 29 wound around the spool 11 enters and exits. The revolving door 9 is opened when the photographic film cartridge 1 is loaded in the camera, but is closed when the photographic film cartridge 1 is removed from the camera so that the film inside is shielded from light. A cam 31 is provided at the end of the revolving door 9. When the revolving door 9 is closed, the intervening lock member 17 is pressed by the rotation of the cam 31 and is provided concentrically at one end of the spool 11. The protrusion 33 of the lock member 17 is elastically pressed against the trough 23 to prevent rotation, and the spool 11 is prevented from rotating naturally due to vibration or the like. However, when the camera is waiting for shooting or when the film is taken out from the camera and sent out for development, the rotary door 9 is opened and an entrance is formed. At that time, the cam 31 is pressed by the lock member 17. Is released. Then, the protrusion 33 of the lock member 17 is lightly pushed up by the slope between the peak 21 and the valley 23 of the toothed wheel by the rotation of the spool 11, the rotation lock of the spool is released, and the film 29 is a photographic film cartridge by the rotation of the spool 11. It can come out of the shell 3 of 1 and can be wound up by the rotation of the spool 11 in the opposite direction.
[0013]
As shown in FIGS. 4, 7 and 8, the spool 11 is engaged with a use state display member 43, and supports a pair of elastic concentric flange disks 25 and 27 on the inside thereof. Yes. A film 29 is wound between the flange disks 25 and 27 around the core 15 of the spool 11 in the form of a roll.
[0014]
Next, the photographic film cartridge 1 disclosed in European Patent Publication No. 625725 can display the film exposure state, which will be described.
[0015]
As shown in FIG. 6, the shell top 5 and the shell bottom 7 constituting the shell 3 have four status display windows in the form of cutout windows 35, 37, 39, and 41, respectively, at the ends on the side where the spool 11 is locked. Is provided. And as an example, it is defined as follows. When the circular cutout window 35 is blocked by the use state display portion 44 of the use state display member 43 as shown in FIG. 9A, it is displayed that the film 29 is not used, that is, not exposed. Similarly, when the semicircular cut-out window 37 is blocked by the use state display portion 44 of the use state display member 43 as shown in FIG. 9B, it indicates that the film 29 has been partially exposed. When the X-shaped cutout window 39 is closed by the use state display portion 44 as shown in FIG. 9C, it is displayed that the film 29 is completely exposed. Further, when the square cutout window 41 is blocked by the use state display portion 44 as shown in FIG. 9D, the latent image recorded on the film 29 on which the film 29 has been exposed has been developed by the developing machine. Is displayed.
[0016]
As shown in FIGS. 4 and 8, the use state display member 43 of a light color other than black is fixed so that its outer edge is concentric with the core 15, and the spool 11 is rotated in the winding direction and the feeding direction. Rotate together. As shown in FIG. 6 , the use state display member 43 is fixed by the film maker at the time of shipment so that the rotational direction position of the spool 11 is positioned directly below the circular cutout window 35, whereby the film 29 is not used, that is, unexposed. This is visible. At this time, the color of the photographic film cartridge 1 is black, but the surface of the use state display portion 44 of the use state display member 43 is light as described above. As a result, in the actual photographic film cartridge 1, it is easily confirmed that the use state display portion 44 of the display member 43 is directly below one of the cutout windows 35, 37, 39, 41, thereby The film usage state of the photographic film cartridge 1 can be accurately grasped.
[0017]
Next, the photographic film cartridge 1 is provided with a bar code disc 45 on the spool 11, which will be described. As shown in FIGS. 4 and 8, the spool 11 includes a plastic disc 45, which includes a first sector portion DS having a first radial dimension and a second radius smaller than the first radial dimension. It has a second sector part QZ with dimensions.
[0018]
The radial disc 45 with a bar code is attached to the core 15 of the spool 11 at, for example, the drive side end of the photographic film cartridge 1. The core 15 extends slightly outward through the central hole 47 in the disc 45. A radial barcode with data relating to the characteristics of the film stored in the photographic film cartridge 1 is fixedly displayed on the fan-shaped portion DS of the disk 45, but there is a method of pasting the barcode printed on the label. In this, it is difficult to stick, and it is difficult to bend. Therefore, it is desirable that this bar code is printed directly on the disk 45. As a printing means, it is necessary to print accurately at the reference position of the bar code determined in correspondence with the rotational position of the film locking position of the spool 11 and the rotational position of the use state display member 43.
[0019]
As for the barcode, a black and white bar is printed in the DS portion to the specified size, and the quiet zone (QZ) portion is black, so it is not necessary to print it, and it can be left kneaded and molded with carbon black.
[0020]
The outer edge radius of the sector portion DS, which is the bar code printing area of the disk 45, is sized substantially close to the outer edge portion 58 of the shell 3, and the outer edge radius of the quiet zone sector portion QS is considerably larger than that of the DS portion. The gap is used to prevent exposure when the photographic film cartridge 1 is loaded into the cartridge housing portion 104 of the camera.
[0021]
Bar code information and QZ information are obtained by a sensor (not shown) provided in the cartridge housing portion 104 of the camera corresponding to the opening portions 54 and 56 of the shell 3 of the photographic film cartridge 1, and the film type, the number of shooting screens, and the sensitivity. Such film information is stored in the camera.
[0022]
The bar code disk 45 provided in the vicinity of one end of the spool 11 in this way forms its DS part and QZ part, and the bar code and the use state display member 43 provided at the other end of the spool 11 are different from each other. The bar code printing means on the disk 45 needs to be easily and stably printed at an accurate position as described above, while maintaining a predetermined angle with respect to the spool rotation direction. It is.
[0023]
On the other hand, as described above, the use state display portion 44 of the use state display member 43 is observed from the cutout window, whereby the use state of the film stored in the cartridge is grasped. In this case, since it is necessary to clearly indicate to the user which cutout window the use state display portion 44 is located under, the use state display portion 44 has a color different from that of the cartridge body, preferably white. A relatively light color is preferred.
[0024]
In the photographic film cartridge 1 loaded in the cartridge housing portion 104 of the camera, the end portion 11a of the spool 11 is engaged with the shaft portion 105a of the winding knob 105, and the end portion 9a of the rotary door 9 is the shaft of the door driver 106. The film 29 can be wound by rotating the winding knob 105 in the direction of the arrow while engaging the portion 106a and opening the rotary door 9, and the spool 11 rotating in conjunction with it. The hoisting knob 105 is restricted from rotating in the reverse direction by a stopper 107 provided on the camera body 101.
[0025]
Further, a tool access cover 108 is rotatably provided at the pin portion 104a of the camera body 101, and a door driver 106 is rotatably provided at the hole portion 104b. The gear 108a of the tool access cover 108 and the door driver 106 are The gear 106b meshes and can rotate in conjunction with it.
[0026]
The tool access cover 108 has a notch 108b through which a tool is inserted to push out the photographic film cartridge 1 at the time of development, and an annular rib 105b formed on the hoisting knob 105, and is notched by a predetermined rotation of the hoisting knob 105. A claw portion 108c that engages with 105c and a stopper portion 108d that engages with a tooth portion 105d of the hoisting knob 105 and restricts rotation are provided. A spring 109 is provided between the pin portion 108e of the tool access cover 108 and the pin portion 104c of the camera body 101. The spring 109 urges the door driver 106 to always rotate in the closing direction.
[0027]
Photographic film cartridge 1, film 29 is unused i.e. unexposed when the circular cutout window 35 is closed by using the status display part 44 of the use state display member 43, as shown in FIG. 9 (a) Is displayed. The end portion 11a of the spool 11 is engaged with the shaft portion 105a of the hoisting knob 105, and the end portion 9a of the rotary door 9 is engaged with the shaft portion 106a of the door driver 106 so that the rotary door 9 is opened. rotating the upper knob 105 in the direction of the arrow, the film 29 is rotated in conjunction spool 11 becomes available on the winding, semicircular cutouts window 37 by the rotation of the spool 11 as shown in FIG. 9 (b) When the usage status display portion 44 of the usage status display member 43 is blocked, it is displayed that the film 29 has been partially exposed.
The door driver 106 has a film detection arm portion 106 c that comes into contact with the film 29 fed out from the photographic film cartridge 1. In a state where the film detection arm portion 106c of the door driver 106 is in contact with the film 29, the rotation of the door driver 106 is restricted, and the winding of the film 29 is completed by the rotation of the spool 11, and the X-shaped cutout window 39 is illustrated. 9 When the use state display portion 44 is closed as shown in (c), it is displayed that the film 29 is completely exposed.
Since the state where the film detection arm 106c is in contact with the film 29 is released at the timing when the winding of the film 29 is completed by the rotation of the spool 11, the door driver 106 can be rotated. For this reason, the tool access cover 108 and the door driver 106 are interlocked by the spring 109. As shown in FIG. 10A, the tool access cover 108 rotates in the direction of the arrow, and the claw portion 108c abuts on the annular rib 105b of the hoisting knob 105 to restrict the rotation. When the notch portion 105c reaches the position of the claw portion 108c by the rotation of the hoisting knob 105, the claw portion 108c enters the notch portion 105c as shown in FIG. Thus, the tool access cover 108 is forcibly rotated.
[0028]
The forced rotation of the tool access cover 108 causes the door driver 106 to rotate in conjunction with the closed door 9 as shown in FIG. By rotation of the rotary door 9, the locking member 17 is Ru are held down by a cam 31 provided on the end portion of the revolving door 9. That is, it is provided concentrically at one end of the spool 11 and the protrusion 33 of the lock member 17 is elastically pressed against the trough 23 of the toothed wheel formed by the crest 21 and the trough 23, and rotation is suppressed. The spool 11 is prevented from rotating naturally, and the X-shaped cutout window 39 is blocked by the use state display portion 44 of the use state display member 43 provided in the spool 11 as shown in FIG. When it is, it is displayed that the film 29 is completely exposed. As a result, the user can be surely notified that the exposure has been completed.
[0029]
In the film-integrated camera 100 in which the lock member 17 is actuated by the rotation of the revolving door 9 so that the cut-out window 39 displays an exposure , the protrusion of the lock member 17 by the revolving operation of the revolving door 9 is performed. 33 is positioned in the tooth wheel valleys 23 formed at the end of the spool 11, fully exposed the film 29 when being closed by using the status display part 44 of the use state display member 43 provided on the spool 11 It is displayed that it has been completed. The use state is displayed on the cutout window 39. After the use state switching display, the revolving door 9 is closed, and the closing end timing of the revolving door 9 is delayed from the use state display switching timing, and the use state display is switched. The revolving door 9 is configured to be closed later. That is, when the rotary door 9 is closed, the protrusion 33 of the lock member 17 is formed on the trough 23 of the toothed wheel formed by the crest 21 and the trough 23 concentrically provided at one end of the spool 11 by the rotation of the cam 31. After this, the revolving door 9 finishes closing. Thus, since the protrusion 33 of the lock member 17 is located in the trough 23 of the toothed wheel, the rotary door 9 finishes closing, so that the lock member 17 can be reliably closed without being locked.
[0030]
Therefore, in order to close the revolving door 9 after delaying the closing end timing of the revolving door 9 from the switching timing of the display of the use state and switching the display of the use state, backlash and product tolerances generated in the process of closing the revolving door 9 or Even if the revolving door 9 is bent or twisted, the revolving door 9 can be reliably closed without being locked, and the film can be prevented from being accidentally exposed.
[0031]
【The invention's effect】
As described above, according to the first aspect of the invention, the closing timing of the revolving door is delayed from the switching timing of the display of the use state, and the revolving door is closed after the display of the use state is switched. Even if backlash, product tolerance, or bending or kinking occurs in the revolving door, the revolving door can be reliably closed without being locked, and the film can be prevented from being exposed accidentally.
[0032]
In the invention according to claim 2, since the protrusion of the lock member is located in the trough of the toothed wheel and the rotary door finishes closing, the lock door can be reliably closed without being locked by the lock member.
[0033]
According to the third aspect of the present invention, the display of the use state is already exposed, and the user can be surely notified that the exposure has been completed.
[Brief description of the drawings]
FIG. 1 is a plan view of a winding unit in a state where a camera cover of a film-integrated camera is removed.
FIG. 2 is a plan view of the upper part of the roll in a state where the camera cover of the film-integrated camera is removed and the tool access cover is indicated by a two-dot chain line.
FIG. 3 is a side view of the upper part of the film-integrated camera with the camera cover removed.
FIG. 4 is an exploded perspective view of a photographic film cartridge.
FIG. 5 is an external perspective view of the photographic film cartridge as viewed from one end.
FIG. 6 is an external perspective view of the photographic film cartridge as viewed from the other end.
FIG. 7 is a perspective view in which a part is cut so that the inside can be seen as seen from the latter side.
FIG. 8 is a perspective view of a film spool constituting a photographic film cartridge.
FIG. 9 is a side view as seen from one side of a photographic film cartridge showing that the use state of the film can be displayed.
FIG. 10 is a diagram showing a state in which the revolving door is operated.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Photo film cartridge 3 Shell 5 Shell top 7 Shell bottom 9 Revolving door 11 Spool 15 Core 17 Lock member 21 Mountain 23 Valley 25, 27 Flange disk 31 Cam 35, 37, 39, 41 Cutout window 33 Protrusion 43 Usage state display member 44 Usage status display 45 Bar code disk (fan disk)
105 Hoist knob 106 Door driver 108 Tool access cover

Claims (3)

By rotating the spool, the film can be taken in and out from the entrance / exit provided in the shell with respect to the shell,
The door is provided with a revolving door that can be opened and closed,
A use state display member is engaged with one shaft end of the spool,
A plurality of cutout windows are opened in the shell adjacent to the use state display member,
Loading a photographic film cartridge comprising a locking member for restricting the rotation of the winding rotation and the rotary door of the spool at the end of the state of the film,
The door driver is interlocked with the rotation of the hoisting knob from the state where the winding of the film is completed, and the rotating door is rotated and closed, and the rotating member is operated by rotating the rotating door to rotate the spool. In the film-integrated camera that moves the use state display member and displays the use state on the cutout window,
The protrusion of the lock member is located in the trough of the tooth wheel formed on the spool by turning when the revolving door is closed, and the use state is displayed on the cutout window,
The revolving door finishes closing after the use state switching display,
Wherein from the switching timing of the display of the usage state delayed closing end timing of the revolving door, film-integrated camera, wherein said that constitute the revolving door closed Owa to so that after switching the display of the usage state.   When the revolving door is closed, the protrusion of the locking member is located in a trough of a toothed wheel formed by a crest and a trough concentrically provided at one end of the spool by the rotation of the cam, and then the rotation 2. The film-integrated camera according to claim 1, wherein the door is closed. 3. The film-integrated camera according to claim 1, wherein the display of the use state is already exposed.

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