KR100500647B1 - Photo film unit with lens - Google Patents

Abstract

The present invention relates to a lens-fitted photo film unit in which a photo film of a predetermined length is preloaded. The photographic film is bonded to the spool. The take-up wheel is connected to the spool. Every second after one frame is exposed on the photographic film, the take-up wheel is manually rotated to wind the photographic film into a cassette shell around the spool. In the lens-fitted photo film unit, the combination of the detection cutout 83 and the protruding portions 86, 103, 127, and 130b detects that the take-up wheel makes a predetermined number of turns depending on the predetermined length of the photographic film. The combination of the holes 75, 101, 121, 132 and the protrusions 85, 105, 123, 136 rotates the winding wheel in response to the rotation of the winding wheel to a predetermined rotational position after a predetermined number of turns of the winding wheel. Lock it. The winding wheels prevent the photographic film from being rotated after being wound around the cassette wheel as a whole.

Description

Photo film unit with lens

Background of the Invention

1. Field of invention

The present invention relates to a lens-fitted photo film unit. More specifically, the present invention relates to a lens-fitted photo film unit in which a photo film cassette is pre-mounted, and the photo film unit removed after double exposure can be safely handled.

2. Description of the prior art

There is a lens-mounted photo film unit which is pre-mounted and has a simple structure for exposing the photo film unit. The photo film is stored in the lens-fitted photo film unit with the end of the photo film fixed to the spool. The spool is received in the cassette in a rotatable manner. The winding wheel is connected to the spool and rotated to wind the exposed portion of the photographic film into the cassette after each exposure. The cassette can be taken out of the lens-fitted photo film unit in a lit room, not in a dark room. There is a lens-type photo film unit type in which a cassette shell is formed of a resin material, accommodates a photo film, and easily inserts a photo film into a lens-mounted photo film unit.

There is a defined photofilm passageway or mouth along the line between the half shells for the photofilm passageway between the inside and outside of the cassette.

The cassette shutter is accommodated in an interior position of the passage and rotates to open and close the passage. There are indicator openings formed in one of the end faces of the cassette shell in which the display panel is disposed. The display openings are different in form and are combined with meaning of the "unexposed", "exposed" and "developed" states of the photographic film, respectively. The display panel with a spool rotates at its own position behind the display openings inside the cassette shell and is stopped at either of the display openings. One meaning associated with one of the display openings through the display panel is visualized and implies the state of the photographic film in the cassette shell.

After exposing all the available frames, the user sends the lens-fitted photo film unit to the photo lab and requests the photo finish (developing, printing, enlargement, etc.). Photo finishing workers in the photo studio remove the cassette from the lens-fitted photo film unit. Before the cassette is removed from the lens-fitted photo film unit, the take-up wheel is inspected by the operator by applying rotational force to the wheel. This is because it is necessary to confirm that the entire photographic film is wound in the cassette shell. Since this cannot be confirmed by inspecting the appearance of the lens-fitted photo film unit, the rotational force is manually applied to the take-up wheel for confirmation. However, there is a problem that such manual operation is very late and contradicts the high efficiency of the photo finishing work.

In a camera equipped with a cassette, there is an optical sensor for detecting the odor of rotation of the spool. In order to remove the cassette from this camera, the display panel is adjusted to stop behind the display opening indicating the "exposure" state. This is to prevent accidental remounting of the cassette used in the camera. However, the lens-fitted photo film unit does not have such a simple structure for reasons of cost, bonding space, and the like. The display panel removed from the lens-fitted photo film unit is not in the predetermined position. When the user takes out the cassette used in the lens-fitted photo film unit, the display panel is likely to stop behind the display opening indicating the "non-exposure" state. It is easy for a user to mount a cassette used by a camera by mistake.

Summary of the Invention

In view of the above problem, an object of the present invention is that the finish of winding the photographic film completely into the cassette shell can be easily confirmed, and the photographic film cassette can be ejected after the indicator is set to indicate the "exposure" state of the photographic film. It is to provide a photographic film unit with a lens.

It is another object of the present invention to provide a lens-fitted photo film unit in which the cassette shutter of the cassette shell is closed by the final rotation of the winding wheel of the lens-mounted photo film unit.

A further object of the present invention is to provide a lens-fitted photo film unit in which the shutter rotating member is prevented from being fixed to the timing lever.

In order to achieve the above and other objects and advantages of the present invention, a defined length photographic film is held on a spool. The take-up wheel is connected to the spool at the standard angle position along the direction of rotation. After every frame, the photographic film is exposed. The winding wheel is rotated externally so that the exposed photographic film is wound around the spool around the cassette shell. The lens-fitted photo film unit includes a position detector to detect whether the take-up wheel has rotated the prescribed number, which number depends on the prescribed length of the photo film. The lock mechanism prevents the winding wheel from rotating in response to the winding wheel being rotated to the specified rotational position after the prescribed rotation of the winding wheel, which locks the winding wheel after the photographic film is completely wound with the cassette shell. Prevent it.

The cassette shell includes a display panel integrally and rotatably arranged with the spool. At least two indicator holes are formed so as to be open to the wall covering the display panel to cause the display panel to display the unexposed and exposed states of the photographic film, respectively. It is arranged in the rotational direction of the display panel, and the display panel displays the exposure state when the spool is stopped at the prescribed rotational position.

In a preferred embodiment, the intermittent gear is arranged in a rotatable manner integrally with the take-up wheel and has at least one tooth. The counter gear meshes with the intermittent gear and advances at a prescribed angle by the rotation of the intermittent gear, which is suitable for calculating the frame generated in the photographic film. The position detector includes a cam disk disposed in a rotatable manner integrally with the counter gear. The detector protrusion is arranged near the winding in a swingable manner and faces the outer circumferential surface of the cam disk. A bias member pushes the detector protrusion to the outer circumferential surface of the cam disk. A detector cutout is formed on the outer circumferential surface of the cam disc and faces the detector protrusion at the end of the prescribed number of revolutions of the take-up wheel, and the detector protrusion is inclined to signal the finish of the rotation. Swing by and meet the detector cutout.

The lock includes a ring-shaped contact surface disposed in a rotatable manner integrally with the take-up wheel. The first holding portion is disposed on the ring contact surface. The second holding portion is disposed to face the ring-shaped contact surface, and can engage with the first holding portion. The inclined member pushes the second holding portion to the ring-shaped contact surface, the first holding portion faces the second holding portion when the winding wheel is rotated to the prescribed rotational position, and the inclined member engages the second holding member with the first holding member. The second holding member swings so as to slide.

Thus, the termination of the photo film being completely wound into the cassette shell can be easily confirmed. The photo film cassette is set so that the display panel displays the "exposure" state of the photo film.

In another preferred embodiment, the shutter rotating member is connected to the end of the cassette shutter to rotate the cassette shutter. The delivery device is operated when the take-up wheel reaches the prescribed speed to rotate the shutter rotating member to the closed position of the cassette shutter in response to the rotation of the cassette shutter. The specified speed depends on the specified length of the photographic film. The cassette shutter is closed when the photographic film is completely wound into the cassette shell. The wheel lock prevents the winding wheel in the prescribed position from moving to the closed position in response to the rotation of the cassette shutter, and the wheel lock responds to the rotation of the spool after the cassette shutter is closed by the use of the transfer device. To prevent it from rotating to the specified rotation position.

Thus, the cassette shutter in the cassette shell can be closed by the final rotation of the take-up wheel.

In yet another preferred embodiment, the shutter rotating member is connected to the end of the cassette shutter to rotate the cassette shutter. The spring biases the shutter rotating member to one side toward the closed position of the cassette shutter. The timing lever is arranged in a swingable manner between the first and second positions, coupled with the shutter rotating member against the spring to maintain the shutter rotating member in the open position of the cassette shutter at the first position, and the cassette at the second position. The shutter rotating member held in the open position of the shutter is released. The intermittent delivery device is operated when the take-up wheel reaches the prescribed speed to swing the timing lever to the second position, and the regulated speed is suitable for the photo film to be completely wound into the cassette shell. The pre-shifter member retains the shutter rotating member in the open position of the cassette shutter, but prior to swinging the timing lever to the second position to break the fixation between the timing lever and the contact points of the shutter rotating member. Is arranged in the intermittent transmission device for swinging in the opposite direction to the second position.

Alternatively, instead of using the preliminary moving member, the timing lever may be formed of a material different from that of the shutter rotating member to prevent the timing lever and the contact points of the shutter rotating member from being fixed to each other.

Thus, the shutter rotating member is prevented from being fixed to the timing lever.

The above objects and advantages of the present invention will become more apparent from the following detailed description when read in conjunction with the accompanying drawings.

Detailed Description of the Preferred Embodiments of the Invention

The lens-fitted photo film unit 2 is described with reference to FIG. The lens-fitted photo film unit 2 is composed of a housing 3 and an outer sheet member 4 or a label for covering a portion of the housing 3. The housing 3 is combined with a structure for storing the photo film cassette in advance and exposing it.

A release button 5, a counter window 6 and a finish indicator window 7 are arranged on top of the housing 3. Counter window 6 shows the number of remaining frames among the available frames. The end display window 7 displays a state in which the entire photo film is wound up. A view finder 8 and a photographing lens 9 are disposed in front of the housing 3. The take-up wheel 10 is adapted to be rotated each time after a part is projected to the rear and once exposure has been made. The outer sheet 4 is attached to the housing 3 so as to wind the center of the housing, and includes openings such that the photographing lens 9, the viewfinder 8, the counter window 6, and the like are exposed to the outside. In FIG. 2, the housing 3 includes a photo film accommodating unit 15, an exposure unit 16 mounted in front of the photo film accommodating unit 15, and a front cover 17 covering the front of the photo film accommodating unit 15. And a rear cover 18 covering the rear of the photo film accommodating unit 15. The front cover 17 and the rear cover 18 is fixedly mounted using a hook coupling. The photo film accommodating unit 15 is pre-loaded with a photo film cassette 14, which is composed of a cassette shell 13 for accommodating the photo film 12. As shown in FIG.

A light blocking tunnel 20 is arranged in the center of the photo film storage unit 15, which tunnels the atmospheric light toward the photo film 12 from the photographic light path constrained through the exposure unit 16. Block (light). The exposure opening 20a is formed in front of the light blocking tunnel 20. An exposure aperture is formed behind the light blocking tunnel 20 to limit the exposure range of the photographic film 12. A photographic film support surface 18a is formed in the rear cover 18, which faces the exposure hole. The photo film accommodating unit 15 has a cassette accommodating chamber 21 and a photo film roll chamber 22 with a light blocking tunnel 20 therebetween. During the manufacturing process of the lens-fitted photo film unit 2, the cassette storage chamber 21 accommodates the insertion of the cassette shell 13, and the roller chamber 22 accommodates the insertion of the photo film 12 roll. The cassette storage chamber 21 and the roll chamber 22 are integrally formed with the light blocking tunnel 20.

The bottom lid 24 is located below the cassette storage chamber 21 and is formed together with the rear cover 18. The bottom lid 25 is located below the roll chamber 22 and is formed together with the rear cover 18. When the rear cover 18 is coupled to the rear of the photo film accommodating unit 15, the bottom lids 24 and 25 are closed to block the inside of the cassette compartment 21 and the roll chamber 22 from the ambient light. The bottom lids 24 and 25 are easy to bend relative to the rear lid 18 by the connection of thinner hinge portions. The bottom lid 24 is opened before the photo film cassette 14 is removed from the lens-fitted photo film unit 2.

The front cover 17 is mounted to the front of the photo film accommodating unit 15 to cover the front, upper and both sides of the photo film accommodating unit 15. The shutter button 5 and the end display window 7 are formed together with the front cover 17. The photo film 12 has a series of holes 12b and 12c. The hole 12b is larger than the hole 12c. Each of the holes 12b is engaged with the starting edge of one frame 12a. Each of the holes 12c is engaged with the terminal portion of one frame 12a.

In FIG. 3, the exposure unit 16 consists of an integrated combination of a base member 27 and associated components assembled to the base member 27. The base member 27 is mounted in a removable manner in front of the light blocking tunnel 20. The upper part of the base member 27 supports a plurality of components constituting the shutter mechanism, and also supports an objective lens 28a and an alternative lens 28b coupled to constitute the viewfinder 8. The lens cover 29 is coupled to the front of the base member 27 to hold the photographing lens 9. A shutter blade is disposed in a swingable manner between the lens cover 29 and the base member 27.

Shafts 31 and 32 and a shaft recriver 33 are formed on the base member 27. The shaft 31 receives the shutter drive lever 34, the release spring 35, and the counter plate 36 in the order of insertion by way of insertion. The shaft 32 accommodates the locking spring 37 and the retainer lever 38 in an ordered manner in the insertion manner. The bearing portion 33 accommodates the cam member 39 in an insertion manner.

The bearing 33 has a hole penetrating the bottom thereof. The shaft portion 39a of the cam member 39 is inserted into the hole and protrudes downward beyond the bottom of the bearing portion 33. The sprocket wheel 41 is engaged with the shaft portion 39 and is also seen rearward through the opening 20b in the upper portion of the light blocking tunnel 20. The rear portion of the sprocket wheel 41 faces the photographic film 12. Two pairs of teeth 41a, 41b are formed in a rotationally symmetric manner around the sprocket wheel 4. Teeth 41a is larger than teeth 41b. The teeth 41a and 41b engage the holes 12b and 12c of the photographic film 12, so that the half rotation of the sprocket wheel 41 causes the photographic film 12 to be framed one frame toward the inside of the cassette shell 13. ) Is made by

The cam member 39 includes a two-thoothed gear 39b, a winding block cam 39c, a charge cam 39d, a bias cam 39e and a shaft portion ( 39a), which are arranged downwardly and integrally formed in the order shown. The toothed gear 39b meshes with the teeth 36a around the counter plate 36. The top of the counter plate 36 is scaled to indicate the number of remaining frames available. The toothed gear 39b causes the counter plate 36 to rotate one step at a half turn.

The winding block cam 39c has a pair of notches 39f formed in a rotationally symmetrical manner. Each time the winding block cam 39c makes a half turn, a block claw 38a is engaged with this notch 39f when the photographic film 12 moves one frame at a time. The charging cam 39d is formed of a pair of blade-shaped protrusions formed by rotational symmetry, and when the rotation is rotated, the shutter driving lever 34 is rotated in the charging direction of the shutter device by pushing the shutter driving lever 34. Let's do it.

The inclined cam 39e is composed of a pair of protrusions formed in a rotationally symmetrical manner, and is pushed by a plate spring 43 fixed to the upper portion of the base member 27. The holes 12b and 12c in the photographic film 12 were interrupted regularly but not in succession. Any of the teeth 41a, 41b of the sprocket wheel 41 produces an unmeshed portion that does not engage with the holes 12b, 12c of the photo film 12. In the non-engaged portion, the leaf spring 43 rotates the cam member 39 in the same rotational direction by pushing the inclined cam 39e. Therefore, the teeth 41b of the sprocket wheel 41 are moved to the standby position which can be engaged with the next one of the holes 12c. It should be noted that the leaf spring 43 is made of a bent metal sheet.

The shutter drive lever 34 is rotatable between a charging position located clockwise and a release position located counterclockwise. The shutter drive lever 34 is inclined toward the release position by the release spring 35. The shutter drive lever 34 includes a push receiving portion 34a, a rise portion 34b and a knocker arm 34c. The press-receiving portion 34a is pressed by the filling cam 39d and rotated toward the filling position. The rising portion 34b is held by the holding lever 38 when in the charging position. The knocker arm 34c taps the shutter blade to swing the shutter blade when rotated from the charging position to the release position.

The holding lever 38 is engaged with the shutter driving lever 34 in the charging position and holds the shutter driving lever 34. The retaining lever 38 is rotatable between the blocking position and the non-blocking position located counterclockwise at this position. In the blocking position, the retaining lever 38 prevents the rotation of the take-up wheel 10 and the cam member 39. In the non-blocking position, the holding lever 38 releases the holding of the shutter drive lever 34 in the charging position and releases the winding wheel 10 and the cam member 39 from being disturbed. The holding lever 38 is inclined toward the blocking position by the locking spring 37.

The retaining lever 38 includes a drop portion 38b, a drop rod 38c, a lock claw 38d and a winding block claw 38a. The lower portion 38b is coupled to the raised portion 34b of the shutter drive lever 34. The lower rod 38c is pushed by the push rod 5a formed together with the shutter button 5 and moved toward the non-blocking position where it is released from preventing the winding. The locking claw 38d meshes with the teeth 10a around the winding wheel 10 of FIG. 6 and prevents the rotation of the winding wheel 10.

The holding lever 38 also has a rising projection 38e. In any case, the available frames of the photographic film 12 are exposed, and the holes 12b and 12c of the photographic film 12 are separated from the teeth 41a and 41b of the sprocket wheel 41. The rising projection 38e is then contacted by the cam 36b below the counter plate 36. In such a contact, the counter plate 36 is further prevented from rotating. The toothed gear 39b of the cam member 39 does not rotate in any direction. No further action of charging the shutter occurs. The retaining lever 38 does not rotate to the blocking position. The take-up wheel 10 is free to rotate.

The upper plate 45 is mounted on the upper portion of the base member 27. Holes 45a in the top plate 45 support the top of the shaft 31. A cutout 45b of the top plate 45 supports the upper portion of the cam member 39. The upper plate 45 is entirely transparent and formed of a resin material. Reference numeral 46 denotes a lens for enlarging the number of graduations formed on the counter plate 36.

In FIG. 4, the photo film cassette 14 is composed of a cassette shell 13 and a photo film 12 housed in the cassette shell 13. The sticker 47 is attached around the cassette shell 13. The cassette shell 13 comprises several parts composed of and assembled with half shells 48 and 49 formed of resin.

The spool 51 is received in the cassette shell 13 in a rotatable manner. A trailing portion (trailer) of the photo film 12 is stored in the spool 51. Each distal end of the spool 51 has an engaging hole 51a, and the drive shaft or the take-up wheel 10 is engageable with this hole. The engagement hole 51a is shown through both end faces of the half shells 48 and 49. A keyway 51b is formed in the engaging hole 51a (see Fig. 5).

There is a defined photofilm passageway 52 along the line between the half shells 48 and 49 for passing the photofilm 12 between the inside and outside of the cassette shell 13. The cassette shutter 53 is stored in the inner position of the passage 52. Rotate to open / close passage 52. The axial ends of the cassette shutter 53 have an engaging portion 53a that is engageable with the external drive shaft for rotation. Engaging portion 53a is shown through each of half shells 48 and 49 in the same manner as spool 51.

The protrusion 54 is formed in the half shell 49 at the inner position of the passage 52. The projection 54 separates the leading end of the photo film 12 around the spool 51 and guides the leading end to the passage 52.

The spool 51 accommodates the insertion of the disks 56 and 57 holes 56a and 57a, which are supported in a rotatable manner. The peripheral edge portions 56b and 57b protrude from the disks 56 and 57 toward each other, respectively, and partially cover the outermost turn of the roll of the photo film 12 wound around the spool 51 so as to cover the photo film ( 12) is prevented from being released. When the spool 51 is rotated in the clockwise loosening direction, the photographic film 12 rotates together with the spool 51. During this rotation, the leading end of the photographic film 12 is guided to move toward the passage 52 by the projection 54, and then proceeds outward.

The latch member 59 is fixedly mounted at an outer position from the disk 56. The latch member 59 includes a display panel 60 and a latch gear 59a formed integrally therewith, and rotate together with the spool 51. Reference numeral 62 denotes a latch lever for fixing the spool 51. When the cassette shutter 53 is moved to the closed position, the latch lever 62 is pressed by a cam formed with the cassette shutter 53 and the latch member 59 is fixed to fix the rotation of the spool 51. Coupling with the latch gear 59a. When the cassette shutter 53 is moved to the open position, the spool 51 is released from the latching of the latch lever 62.

The data plate 64 is integrally formed with the other axial end of the spool 51 and has a fan-shaped recess. Data sticker 65 is affixed to data plate 64 and has a rotating bar code whose bars are directed radially. The bar code on the data sticker 65 indicates the available frame number and sensitivity of the photo film 12 and is read by a reader inside the camera or other optical device when the cassette is mounted.

In Fig. 5, display openings 67a, 67b, 67c, and 67d are formed on one of the end faces of the cassette shell 13, and the display panel 60 is disposed thereon. The display openings 67a-67d are different in form, and are combined with the photographic film meaning "unexposed", "partially exposed", "exposed" and "developed" states, respectively. The display panel 60 having the spool 51 is rotated at its own position behind the display openings 67a to 67d inside the cassette shell 13 and stopped at either of the display openings 67a and 67d. One meaning associated with one of the display openings 67a-67d through the display panel 60 is visualized and includes the state that the photo film 12 has in the cassette shell 13. It should be noted that the key groove 51b of the engaging hole 51a is oriented with respect to the reference line L of the cassette shell 13 at an angle θ when the display panel 60 is properly positioned behind the display opening 67c.

6 and 7, the center of the upper surface 69 of the cassette storage chamber 21 has a bearing portion 70, which supports the winding wheel 10 in a rotatable manner. Teeth 10a around the take-up wheel 10 are suitable for facilitating manual rotation of the take-up wheel 10 by friction. The one-way claw 71 meshes with the teeth 10a as well as the windable locking claw 38a of the retaining lever 38. The one-way claw 71 prevents the take-up wheel 10 from rotating in the clockwise direction opposite to the take-up direction. The one-way claw 71 is formed together with the upper surface 69 of the cassette storage chamber 21.

As an intermittent gear, a one-toothed gear 73 is formed integrally with the bottom of the take-up wheel 10. One-tooth gear 73 is operated for the position detector and for the locking device. The position detector detects the end of rotation of the take-up wheel 10 sufficient for the entirety of the photographic film 12 to be wound into the cassette shell 13. The locking device prevents the rotation of the take-up wheel 10 when one rotational position of the take-up wheel 10 is detected after detection of the position detector. The one-tooth gear 73 has a ring-shaped contact surface 73a or a circumferential surface formed in a cylinder. One tooth 74 is formed on the ring contact surface 73a, and a lock cutout included in the recessed holding portion 75 or the locking device is formed. The engagement shaft 76 is formed in such a manner as to be engageable with the engagement hole 51a of the spool 51 integrally with the bottom of the one-tooth gear 73. It should be noted that one rotational position is predetermined in relation to the position of the spool 51 located behind the display opening 67c in which the display panel 60 exhibits an "exposure" state.

The upper surface 69 of the cassette compartment 21 includes a plurality of pins including a pin for supporting the speed reduction gear 78 in a rotatable manner and another pin for supporting the counter gear 79 in a rotatable manner. ) Is placed. The speed reduction gear 78 and the counter gear 79 cooperate with the position detector. The speed reduction gear 78 is composed of a relatively small diameter top gear and a large diameter bottom gear. The lower gear 78b meshes with one tooth 74 of the one-tooth gear 74 in an intermittent manner and is rotated at a defined angle of one tooth. The upper gear 78a meshes with the counter gear 79, which is suitable for calculating the number of revolutions made by the take-up wheel 10. The circumference of the counter gear 79 has an arc-shaped cross section without teeth, which meets the speed reduction gear 78 at the end of the counter operation, and the counter gear 79 rotates after the photographic film 12 is completely wound. prevent.

The mark 79a is printed at a position above the counter gear 79 and has a different color from the front lid 17. When the winding whirl 10 is terminated at a predetermined speed to wind up the entirety of the photographic film 12 with the cassette shell 13, the mark 79a is positioned below the end display window 7 in the front cover 17. And are observable from the outside. Reference numeral 80 denotes a leaf spring mounted on the upper portion of the cassette compartment 21 and engaged with the lower gear 78b to prevent the speed reduction gear 78 and the counter gear 79 from being incorrectly rotated by external shock or vibration. Indicates.

Of course the rotation of the take-up wheel 10 can be directly counted by the counter gear 79. However, when the photographic film 12 has a length of 40 pieces as the photographic film of a large length, a problem occurs that the spool 51 has to be made approximately 45 turns to wind the photographic film 12. The counter gear 79 makes one or more revolutions before terminating the 45 revolution count. It may be conceivable to change the size of the counter gear 79 for the purpose of reducing the rotation of the counter gear 79 to one revolution or less before completing the counter operation. However, another problem arises that the diameter of the pitch circle should be 12-15 mm, assuming that the counter gear 79 has the teeth of the involute gear. The counter gear 79 having this size cannot be accommodated in the space of the upper surface of the cassette storage chamber 21. In view of these problems, the speed reduction gear 78 of this embodiment is used between the one-tooth gear 73 and the counter gear 79.

The cam disk 82 is integrally formed with the bottom of the counter gear 79. The cam disk 82 has a circumferential surface 82a and a detector cutout 83 included in the position detector is formed therein. Timing lever 84 is supported in a swivelable manner on a pin on top surface 69. The timing lever 84 has a protruding holding portion 85 and a detector protruding portion 86. The protruding holding portion 85 or the locking projection is included in the locking device and meets the ring-shaped contact surface 73a of the one-tooth gear 73. The detector protrusion 86 is included in the position detector and meets the circumferential surface 82a of the cam disk 82. The timing lever 84 is inclined clockwise by the torsion coil spring 87 to keep the detector protrusion 86 in contact with the circumferential surface 82a of the cam disk 82. It should be noted that one tooth of the one-gear gear 73 is at a lower position than where the protruding retaining portion 85 meets the ring-shaped contact surface 73a. The protruding holding portion 85 does not interfere with one tooth 74.

In FIG. 8, the take-up wheel 10 has completed a predetermined number of rotations. The display 79a reaches the lower side of the end display window 7. The detector cutout 83 abuts the detector protrusion 86. Accordingly, the timing lever 84 is slightly swinged so that the projection holding portion 85 is in contact with the ring-shaped contact surface 73 of the one-tooth tooth 73. The take-up wheel 10 is then rotated further. While less than one rotation is made by the take-up wheel 10, the recessed holding portion 75 abuts the protruding holding portion 85. The recessed holding portion 75 is provided only when the display panel 60 of the photo film cassette 14 is positioned behind the display opening 67c indicating the "exposure" state, that is, the engaging hole 51a of the spool 51 When it is at θ , it meets the protruding holding portion 85. The winding wheel 10 is stopped from rotating while the display panel 60 is held behind the display opening 60c.

The cassette storage chamber 21 is further provided with a shutter rotating member 88, a spring 89 and a connecting member 90, which cooperate to rotate the cassette shutter 53 toward the closed position. The shutter rotating member 88 is composed of a coupling shaft 91 and a holding lever 92 formed on the coupling shaft 91. The engaging shaft 91 is inserted in a rotatable manner through the bearing hole 69 in the upper surface 69 and engaged with the engaging portion 53a of the cassette shutter 53. The holding lever 92 is inclined toward the closed position of the cassette shutter 53 by the spring 89.

The connecting member 90 combines the opening action of the bottom lid 24 with the rotation of the shutter rotating member 88 to rotate to the closed position of the cassette shutter 53. The connecting member 90 has a retaining portion 90a formed in the shape of a hook at the top thereof and a claw 90b formed at the bottom thereof. The connecting member 90 is mounted inside the rail portion 93 in a vertically slidable manner, and the rail portion is disposed between the cassette storage chamber 21 and the light blocking tunnel 20. When the connecting member 90 is thus mounted, the retaining portion 90a projects slightly above the upper surface 69. The holding portion 90a is engaged with the holding lever 92 and supports the shutter rotating member 88 in the open position of the cassette shutter 53 against the inclination of the spring 89. The claw 90b is coupled to the coupling claw 94, and the coupling claw is disposed to protrude from the inner side surface of the bottom lid 24.

The bottom lid 24 is opened before the lens attaching film unit 2 is removed from the photographic film cassette 14. On the other hand, the engaging claw 94 pulls the claw 90b so as to slide under the connecting member 90. The holding portion 90a is released from the holding lever 92. The shutter rotating member 88 inclined by the spring 89 is rotated to the closed position of the cassette shutter 53. The cassette shutter 53 is rotated to the closed position by the use of the coupling shaft 91, so that the photographic film cassette 14 can be removed in the lighting chamber, not in the dark room.

When the shutter rotating member is rotated to the closed position of the cassette shutter 53, the shutter rotating member 88 is stopped because the holding lever 92 is in contact with the root portion of the one-way claw 71. Since excessive load does not act on the cassette shutter 53, damage of the cassette shutter 53 does not occur at all.

The operation of the above embodiment is now described. In the process of assembling the parts of the lens-fitted photo film unit 2, a dark room is necessary for mounting the photo film cassette 14 to the lens-fitted photo film unit 2. The unexposed photo film 12 is pulled from the cassette shell 13 to form a photo film roll. The cassette shell 13 is inserted into the cassette storage chamber 21 while moving in the axial direction. The photo film roll is inserted into the roll chamber 22 through the rear gap of the roll chamber 22. The amount of the photo film 12 pulled from the cassette shell 13 is precisely controlled. The photo film 12 is pulled out of the cassette shell 13 in such a manner so that the actual frame position is set at the exposure opening 20a before the first available frame position at one frame length. As such the amount of pull is controlled at the factory, it is possible to precisely adjust the predetermined number of revolutions to be made by the take-up wheel 10 to complete the winding of the entire photographic film 12 into the cassette shell 13.

The lens-fitted photo film unit 2, in which various parts are assembled and the photo film cassette 14 is loaded, is inspected and packed with various performances before the lens-fitted photo film 2 is shipped. After all the frames are exposed, the guide information is displayed on the packaging bag or outer sheet 4 of the lens-fitted photo film unit 2 so that the user can continue to rotate the take-up wheel 10 until the take-up wheel 10 is locked. Printed.

In the upper surface 69 of the cassette storage chamber 21 of the unused lens-fitted photo film unit 2, the protruding holding protrusion 85 of the timing lever 84 is formed with the circumferential surface 82a of the cam disc 82. Contact. 7, the shutter rotating member 88 is engaged with the connecting member 90 and held in the open position of the cassette shutter 53. As shown in FIG. The indication 79a of the counter gear 79 is positioned to move downward of the end display window 7 when the entire photographic film 12 is wound into the cassette shell 13.

While the shutter mechanism of the exposure unit 16 of FIG. 3 is being charged, the retaining lever 38 is in the blocking position while being inclined by the lock spring 37. The locking claw 38d is engaged with the winding wheel 10 and the winding block claw 38a is engaged with the winding block cam 39c so as to prevent rotation of the winding wheel 10 and the winding block cam 39c. The lower portion 38b of the holding lever 38 is a rising portion of the shutter driving lever 34 in the charging position so as to maintain the shutter driving lever 34 in the charging position as opposed to the inclined force of the release spring 35 ( 34b).

The user observes the watch through the viewfinder 8 before pressing the shutter button 5. In FIG. 2, the push bar 5a of the shutter button 5 moves to push the lower rod 38c of the holding lever 38. The retaining lever 38 is rotated to the non-blocking position as opposed to the tilting force of the lock spring 37 while the lower portion 38b still holds the raised portion 34b of the shutter drive lever 34.

The retaining lever 38 is further rotated toward the non-blocking position. The lower portion 38b is released from the raised portion 34b of the shutter drive lever 34. The shutter drive lever 34 released from the holding force at the charging position is rotated toward the release position in the counterclockwise direction by the release spring 35. The knocker arm 34c of the shutter drive lever 34 taps and rotates the shutter blades between the base member 27 and the lens cover 29. When the shutter blades are inclined in the direction of closing the exposure openings, the shutter blades quickly close the exposure openings.

To recharge the shutter mechanism, the take-up wheel 10 is rotated in the take-up direction, which is counterclockwise in the figure. The spool 51 is rotated so as to wind the exposed portion of the photo film 12 into the cassette shell 13 one frame at a time.

The sprocket wheel 41 and the cam member 39 are rotated counterclockwise by the photographic film 12 by the inclined force of the leaf spring 43. During the half turn, the filling cam 39d pushes the push receiving portion 34a of the shutter drive lever 34 which rotates toward the filling position as opposed to the tilting force of the release spring 35. The tooth-tooth gear 39b of the cam member 39, which makes a half turn, causes the counter plate 36 to rotate by one step.

The holding lever 38 is inclined by the lock spring 37 in the blocking position, but is not rotated to the blocking position because the winding block claw 38a is in contact with the winding block cam 39c. When the cam member 39 rotates half the notch 39f of the winding block cam 39c so as to meet the winding block claw 38a, the locking spring 37 causes the retaining lever 38 to be rotated to the blocking position. . The winding block claw 38a is engaged with the notch 39f to prevent rotation of the cam member 39. The locking claw 38d is engaged with the teeth 10a of the take-up wheel 10, which also inhibits rotation.

The lower portion 38b of the holding lever 38 is engaged with the raised portion 34b of the shutter driving lever 34 at the charging position to maintain the shutter driving lever 34 at the charging position. Again, the shutter mechanism of the exposure unit 16 is charged until waiting to take exposure in the lens-fitted photo film unit 2.

When the take-up wheel 10 is rotated in the winding direction, one tooth 74 of the one-gear gear 73 meshes with the lower gear 78b of the speed reduction gear 78 of FIG. 7 and the gear is engaged. As opposed to the leaf spring 80, it is rotated by one tooth clockwise. The rotation of the speed reduction gear 78 is transmitted to the counter gear 79 by the upper gear 78a, which is rotated in one step of a unit angle in the counterclockwise direction. When one frame of the photographic film 12 is finished winding with the cassette shell 13, the lower portion 38b of the retaining lever 38 is engaged with the teeth 10a of the winding wheel 10 which are locked again.

Since the detector protrusion 86 is in contact with the cam disk 82, the recess 75 of the gear 73 with one tooth is a protruding receiving portion of the timing lever 84 during the rotation of the take-up wheel 10. Note that the timing lever 84 does not swing even when it encounters 85.

After the final frame is exposed, the take-up wheel 10 is rotated. The holes 12b and 12c of the photo film 12 are released from the teeth 41a and 41b of the sprocket wheel 41. In FIG. 3, the cam 36b of the counter substrate 36 is in contact with the raised portion 38e of the retaining lever 38. The counter plate 36 and thus the cam member 39 are stopped from rotating. The retaining lever 38 does not reach the blocking position, so that the take-up wheel 10 is freely rotated.

When the user rotates the take-up wheel 10 according to the guide information in the bag and the outer sheet 14, the cam disc 82 has a detector cutout 83 in which the detector protrusion 86 of the timing lever 84 is located. 1) rotates counterclockwise by the one-tooth gear 73, the speed reduction gear 78 and the counter gear 79 until it meets " Accordingly, the timing lever 84 is slightly swinged by the torsion coil spring 87. The protruding retaining portion 85 is in contact with the one-toothed gear 73.

The winding wheel 10 is further rotated. While one rotation or less is made by the take-up wheel 10, the recessed holding portion 75 of the one-tooth gear 73 meets the protruding holding portion 85. The detector protrusion 86 is coupled to the detector cutout 83, and the protrusion holding portion 85 is coupled to the recess holding portion 75. The winding wheel 10 is stopped rotating. The display 79a of the counter gear 79 is stopped below the end display window 7. The finished state of the winding of the photo film can then be confirmed by observation through the end display window 7.

The used lens-fitted photo film unit 2 is sent to a photo lab. The end display window 7 is observed by the photograph finish operator to confirm the end of the entire winding of the photographic film 12. After confirmation, the lens attaching film unit 2 is transferred and processed by the removal process of the photographic film cassette 14. If the end is not confirmed, then the take-up wheel 10 is rotated so that the take-up wheel 10 is locked. The lens-fitted photo film unit 2 is then processed in the removal process for the photo film cassette 14.

In the process of removing the photo film cassette 14, the bottom lid 24 is initially slightly opened. The connection member 90 slides downward by the opening movement of the bottom lid 24 and is released from the shutter rotating member 88. The shutter rotating member 88 is rotated toward the closed position of the cassette shutter 53 by a spring 89, and reaches the closed position due to the shutter rotating member 88 as well as the cassette shutter. The latch lever 62 pushed by the cassette shutter 53 is engaged with the latch gear 59a of the latch member 59 to fix the spool 51.

The photo film cassette 14 in which the cassette shutter 53 is closed can be removed from the lens with the lens in the illumination chamber. After removal of the photo film cassette 14, the rotation of the spool 51 remains concave. Interfering with the protruding and holding portion 85 combined with the portion 75. The indication of the "exposure" state is undoubtedly shown .. The user is prevented from accidentally loading the photographic film cassette 14 in this state into the camera. do.

After the photographic film 12 is removed from the photographic film cassette 14, the photographic film 12 is subjected to development and printing. The developed photo film 12 is wound up again with the same cassette shell 13. The display panel 60 of the cassette shell 13 is controlled to stop behind the display opening 67d so as to indicate the "developing" state before the cassette shell 13 and the photographic material are sent to the user.

9 and 10, another preferred embodiment has been described. Elements similar to those of the above embodiment are denoted by the same reference numerals. The winding wheel 10, the speed reduction gear 78, the counter gear 79, the leaf spring 80, the timing lever 95, and the shutter rotating member 96 are placed on the upper surface 69 of the cassette storage chamber 21. And spring 89 were disposed. The coupling / lid member 97 and the slider coil spring 98 were disposed on the rail portion 93 in front of the cassette storage chamber 21. The connection / lid member 97 and the slider coil spring 98 are arranged. The connection / lid member 97 has an operation of indicating the termination of the whole of the photo film 12 being wound by the cassette shell 13 and the closing of the cassette shutter 53.

The one-tooth gear 73 or the intermittent gear, and the cam ridge 100 are integrally formed with the bottom of the take-up wheel 10. One-tooth gear 73 is included in the position detector, which detects the end of rotation of the take-up wheel 10 sufficient to wind the entire photographic film 12 into the cassette shell 13. The cam ridge 100 is included in the locking device, which prevents the rotation of the winding wheel 10 when one rotational position of the winding wheel 10 is detected after the position detection of the position detector. The cam ridge 100 is arc shaped and has a ring-shaped contact surface 100a or an inner side, and a recessed holding portion 101 or a lock cutout formed in the ring-shaped contact surface 100a. This recessed holding portion 101 is included in the locking device.

Substantially the center of the timing lever 95 is supported on the upper surface of the cassette storage chamber 21 in a swingable manner. The timing lever 95 has a detector protrusion 103 at its end. The detector protrusion 103 includes a position detector and meets the circumferential surface 82a of the cam disk 82. The timing lever 95 has an auxiliary protrusion 104 located opposite the detector protrusion 103. The auxiliary protruding end 104 is in contact with the shutter rotating member against the tilting force of the spring 89 and keeps the shutter rotating member 96 in the open position of the cassette shutter 53. Furthermore, the upper part of the timing lever 95 has a protruding holding portion 105 or a locking projection near the auxiliary protruding end 104. The protruding holding portion 105 is included in the locking device and meets the ring-shaped contact surface 100a of the cam ridge 100.

When the display 79a reaches the lower side of the end display window 7 at the end of the predetermined number of revolutions, the detector cutout 83 meets the detector protrusion 103 as shown in FIG. The timing lever 95 is slightly swinged so that the protruding holding portion 105 comes into contact with the ring-shaped contact surface 100a of the cam ridge portion 100. The winding wheel 100 is further rotated. While the rotation of one rotation or less is made by the take-up wheel 10, the recessed holding portion 101 meets the protruding holding portion 105. In the encounter between the recessed holding portion 101 and the protruding holding portion 105, the display panel 56 of the photo film cassette 14 is located behind the display opening 67c indicating the "exposure" state. That is, the key groove 51b of the spool 51 faces the angle θ .

The shutter rotating member 96 is composed of a coupling shaft 91 and a holding lever 107 formed integrally with the upper portion of the coupling shaft 91. The engaging shaft 91 is inserted through the bearing hole 69a in a rotatable manner and engaged with the engaging portion 53a. The holding lever 107 is inclined by the spring 89 toward the closed position of the cassette shutter 53. The retaining lever 107 is partially disposed above the rail portion 93 when the retaining lever is in the open position of the cassette shutter 53, and when the retaining lever is rotated to the closed position of the cassette shutter 53, Away from the top.

The projection 108 is formed on the upper portion of the holding lever 107 so that the holding lever 107 is in contact with the auxiliary projecting end 104 of the timing lever 95 when the holding lever 107 is in the open position of the cassette shutter 53. When the projection 108 contacts the auxiliary protruding end 104, the timing lever 95 is inclined clockwise. However, the detector protrusion 105 of the timing lever 95 is in contact with the circumferential surface 82a of the cam disc 82 and the swing is prevented. The shutter rotating member 96 is held in the open position of the cassette shutter 53.

A projection 109 is formed on the top of the holding lever 107 so that the holding lever 107 is in contact with the auxiliary protrusion 104 when the holding lever 107 is in the closed position of the cassette shutter 53. The shutter rotating member 96 is rotated to the closed position of the cassette shutter 53, and the projection 109 is an auxiliary protrusion end of the timing lever 95 so that the detector protrusion 103 is securely coupled with the detector cutout 83. Push 104.

The connection / lid member 97 has a slot 97a and a pin 97b, and the pin 93a disposed inside the rail portion 93 when mounted in a slidable manner to the rail portion 93 is the slot 97a. ) Is inserted. The slider coil spring 98 connection / lid member 97 is connected between the pin 93a and the pin 97b to incline upward. When the shutter rotating member 96 is in the open position of the cassette shutter 53, the upper end of the connecting / lid member 97 is brought into contact with the holding lever 107 of the shutter rotating member 96 to slide upward. Is prevented. When the shutter rotating member 96 is in the closed position of the cassette shutter 53, the connecting / lid member 97 is connected to the slider coil spring 98 as the retaining lever 107 moves away from the rail portion 93 above. Slide upwards.

An access opening 111 is formed at the bottom of the housing 3 with the bottom lid 24 to accommodate the insertion of the tool or jig for opening the bottom lid 24. The entrance / exit opening 111 is closed by the connection / lid member 97 when the lens-fitted photo film unit 2 is used, and is opened when the connection / lid member 97 is removed. The bottom of the connection / lid member 97 has a bottom lid plate 112 formed integrally therewith. Reference numeral 113 denotes a claw member associated with the front cover 17 to securely hold the closed bottom lid 24.

In Fig. 12, the upper end of the connecting / lid member 97 is in contact with the shutter rotating member 96 while the shutter rotating member 96 is kept in the open position of the cassette shutter 53 by the timing lever 95. . The bottom cover plate 112 closes the access opening 111 adjacent to the bottom cover 24. When the shutter rotating member 96 is rotated to the closed position of the cassette shutter 53 as shown in Fig. 13, the shutter rotating member 96 is above the connecting / lid member 97 or above the rail portion 93. It is not located at The connection / lid member 97 is slid upward by the slider coil spring 8.

The operation of the above embodiment will be described. In Fig. 10, the upper surface 69 of the cassette storage chamber 21 of the lens-fitted photo film unit 2 which is not in use has a projection 108 in contact with the auxiliary protruding end 104 of the timing lever 95. . The shutter rotating member 96 is held in the open position of the cassette shutter 53 opposite to the spring 89. In the timing lever 95 inclined by the spring 89, the detector protrusion 103 is brought into contact with the circumferential surface 82a of the cam disc 82. When the connection / lid member 97 is in contact with the holding lever 107 of the shutter rotation member 96, the connection / lid member 97 closes the entrance / opening 111 as shown in FIG. The display 79a is positioned below the end display window 7 when the photographic film 12 is entirely wound by the cassette shutter 13.

In order to use the lens-fitted photo film unit 2 for photography, the user looks through the viewfinder 8. The shutter button 5 is pressed to release the shutter. When the shutter release ends, the take-up wheel 10 is free to rotate. The winding wheel 10 is rotated counterclockwise. One tooth 74 of the one-tooth gear 73 under the take-up wheel 10 meshes with the lower gear 78b of the speed reduction gear 78. The speed reduction gear 78 is rotated by one tooth in one step in the clockwise direction as opposed to the coupled leaf spring 80. The rotation of the speed reduction gear 78 is transmitted to the counter gear 79 by the upper gear 78a, which is rotated by one step at a unit angle in the counterclockwise direction. At the end of winding up one frame of the photographic film 12, the take-up wheel 10 is again locked by the one-frame winding mechanism of the exposure unit 16.

The timing lever 95 does not swing even if the recessed protrusion 101 is in contact with the protrusion holding portion 105 during the rotation of the take-up wheel 10 because the detector protrusion 103 is in contact with the cam disk 82. It should be noted.

After the final frame is exposed, the take-up wheel 10 is rotated. The one-frame winding mechanism of the exposure unit 16 does not lock the winding wheel 10. The user rotates the take-up wheel 10 according to the guide information printed on the packaging bag or the outer sheet member 4. The cam disk 82 was rotated counterclockwise by the cooperation of the one-tooth gear 73, the speed reduction gear 78 and the counter gear 79. The detector cutout 83 in the cam disk 82 meets the detector protrusion 103. Accordingly, the timing lever 95 is slightly swinged to bring the protruding holding portion 105 into contact with the ring-shaped contact surface 100a of the cam raised portion 100.

The winding wheel 10 is further rotated. While one rotation or less is made by the take-up wheel 10, the recessed holding portion 101 meets the protruding holding portion 105. The inclination of the shutter rotating member 96 couples the detector protrusion 103 with the detector cutout 83 so that the rotation of the winding wheel 10 is prevented, and the protrusion holding portion 105 is connected with the recess holding portion 101. Combine.

When the timing lever 95 swings, the shutter rotation member 96 is released from holding in the cassette shutter 53 in the open position, and is rotated to the closed position of the cassette shutter 53 by the inclination of the spring 89. . When the cassette shutter 53 reaches the closed position, the latch lever 62 pushed by the cassette shutter 53 engages with the latch gear 59a of the latch member 59 to fix the spool 51. .

The holding lever 107 is not placed above the rail portion 93. The connection / lid member 97 is slid upward by the slider coil spring 98. In FIG. 13, the bottom cover plate 112 slides upward with the connection / lid member 97 to open the access opening 111. Therefore, when the entrance / exit opening 111 is opened, the signal of the termination of winding the photo film 12 completely into the cassette shell 13 and the closing termination of the cassette shutter 53 are signaled. It can be opened by the use of a tool or a jig through the access opening 111 to remove the photo film cassette 14 from the cassette storage chamber 21. When the ejection tool or jig is forcibly inserted through an undesirable position, it is advantageous to limit the ejection tool or jig insertion position to the access opening 111 because the related parts are damaged. The efficiency of the recycled parts of the lens-fitted photo film unit is increased.

The photo film cassette 14 to be removed has a spool 51 and the display panel 60 thereof is stopped behind the display opening 67c indicating the "exposure" state. The user needs to be careful to prevent the photo film cassette 14 from being misfitted. Furthermore, the marked connection / lid member can additionally be used for the locking of the bottom lid 24. In FIG. 14, the claw member 113 of the bottom lid 24 engageable with the front cover 17 is formed with high flexibility. When the lid plate 115a of the connection / lid member 115 closes the access opening 116, the protrusion 115b of the connection / lid member 115 connects the claw member 113 with the front cover 17. Push the claw member 113 to bond more firmly. If it is desired to forcibly open the bottom lid 24, the claw member 113 is not released from the front cover (17). The bottom lid 24 is prevented from opening by careless operation.

In FIG. 15, the lid plate 115a is moved to open the entrance / exit opening 116 when the connection / lid member 115 slides upward. The extraction tool or jig may be inserted through the access opening 116. The claw member 113 is released from being pushed by the protrusion 115b of the connection / lid member 115. The claw member 113 may be formed in a state in which the bottom lid 24 is easily released to be openable, and the connection / lid member 115 may lock the claw member 113 to engage the front cover 17. It should be noted that it is possible to use other structures that can push the member 113.

16 and 17, yet another embodiment will be described. Elements similar to those of the above embodiment are denoted by the same reference numerals. There is a shutter rotating member 118 which is rotated toward the closed position of the cassette shutter 53 to fix the rotation of the take-up wheel 10.

The cam ridge 120 is formed under the winding wheel 10, and this cam ridge has a ring-shaped contact surface 120a or an inner surface. The recessed holding portion 121 or the lock cutout is formed in the ring-shaped contact surface 120a and is included in the locking device. The shutter rotating member 118 has an arm portion 122 extending radially. Protruding holding portion 123 or the locking projection is formed at the end of the arm portion 122, it is included in the locking device. The arm portion 122 has a protrusion 124, which timing when rotated to the closed position of the cassette shutter 53 to provide a reliable coupling between the detector protrusion 127 and the detector cutout 83. Push the block protrusion 126 of the lever 125.

The timing lever 125 is swinged to release the cassette shutter from the maintenance of the open position. The shutter rotating member 118 rotates in response toward the closed position of the cassette shutter 53. The protruding holding portion 123 of the arm portion 122 of the shutter rotating member 118 is in contact with the ring-shaped contact surface 120a of the cam ridge 120. The winding wheel 10 is further rotated. While one rotation or less is made by the take-up wheel 10, the protruding holding portion 123 is engaged with the recess holding portion 121. In the coupling between the protruding holding portion 123 and the recess holding portion 121, the display panel 60 of the photo film cassette 14 is located behind the display opening 67c indicating the "exposure" state.

Further preferred embodiments are described with reference to FIGS. 18 and 19. Elements similar to those of the above embodiment are denoted by the same reference numerals. The wedge-shaped locking member 131 is disposed adjacent to the timing lever 130 in a rotatable manner. After winding the entire photo film 12, the locking member 131 is rotated in the clockwise direction. The recessed retaining portion 132 or locking cutout is formed in the ring contact surface 73a of the one-tooth gear 73 and is included in the locking device. The locking member 131 is coupled to the recess holding portion 132 to prevent rotation of the take-up wheel 10.

A push projection 135 is arranged to project radially to the shutter rotating member 134. When the detector protrusion 130b of the timing lever 130 meets the detector cutout 83, the shutter rotating member 134 pushes and swings the block protrusion 130a of the timing lever 130. The shutter rotating member 134 rotates to the closed position of the cassette shutter 53. At the same time, the pushing protrusion 135 pushes the surface 131 of the locking member 131.

When the surface 131a is pushed, the locking member 131 is rotated clockwise to push the timing lever 130. The locking member 131 has a protruding holding portion 136 or a distal end, which is included in the locking device. The protruding holding portion 136 is brought into contact with the ring-shaped contact surface 73a of the one-tooth gear 73. Therefore, the protruding holding portion 136 is coupled with the recess holding portion 132 while one rotation or less is made by the winding wheel 100. The recess holding portion 132 is formed by the display panel 60 of the photo film cassette 14 being " When behind the display opening 67c to indicate the "exposure" state, a recess holding portion 132 is formed at such a position as to be able to engage with the locking member 131. After a certain removal, the photographic film cassette 14 is " "Exposure" status.

Example

An example of the speed reduction ratio between the upper gear 78a and the counter gear 79 is 8/30. The lower gear 78b has a pitch circle diameter D = 5.4 mm, a module m = 0.3, and a tooth number Z = 16. When the photographic film 12 is in the form of 25 sheets, for example, the rotation amount of the counter gear 79 of the winding whilst 10 is determined as follows.

As a result, the counter gear 79 should have an indicator 79a and a detector cutout 83 disposed rotationally away from the starting position of the counter gear 79.

When the photographic film to be stored has a different number of available frames or includes photographic film supports of different materials, the amount of rotation of the winding wheel 10 required to wind the entire photographic film 12 into the cassette shell 13 is changed. do. However, the counter gear 79 can only be changed to the appropriately changed position of the indication 79a and the detector cutout 83. All other components can be used without change. When the photographic film 12 is in the form of 40 sheets, for example, 45 rotations of the winding wheel 10 are expected as the amount of rotation necessary for the entire winding of the photographic film 12.

The counter gear 79 rotation amount is determined as follows.

As a result, it should have a mark 79a and a detector cutout 83 disposed rotationally away from the starting position of the counter gear 79.

In the first embodiment, the locking of the take-up wheel 10 and the closing of the cassette shutter 53 are operated independently. However, they can be related in a similar manner to the second, third and fourth embodiments. In the second to fourth embodiments, the take-up wheel 10 is locked by the use of the rotational force of the shutter rotating members 96, 118 and 134 toward the closed position of the cassette shutter 53. As shown in FIG. However, the take-up wheel 10 may be locked by a spring used separately from the shutter rotation members 96, 118, 134. The connection / lid members 97 and 115 are used in the second embodiment, but may be used in other embodiments.

In this embodiment, the connection / lid members 97 and 115 slide upward in response to the rotation of the shutter rotating members 88, 96, 118 and 134 being rotated to the closed position. Alternatively, the connection / lid members 97 and 115 may slide downward in response to the rotation of the shutter rotation members 88, 96, 118 and 134 being rotated to the closed position. Furthermore, the connection / lid members 97 and 115 may be moved in response to the swing of the timing levers 84, 9, 125 and 130. It should be noted that dust is likely to enter the housing 3 when the access openings 111 and 116 are opened below the housing after winding the whole photographic film, or the user personally wants to open the bottom lid 24 by himself. Preferably, the sticker or label is attached to cover and close the access openings 111 and 116 in such a way that it can be visualized externally. It is possible to touch the sticker so that the person who finishes the photograph manually inspects the open state of the entrances and exits 111 and 116.

In this embodiment, the recess holding portion and the protrusion holding portion are coupled to lock the take-up wheel 10. However, the take-up wheel 10 may be locked in a coupling manner with each other by a recess instead of the protrusion and a protrusion instead of the recess, or may be locked by a combination of two protrusions which may be coupled to each other. In this embodiment, the retaining portion is arranged in the radial direction of the take-up wheel. However, the holding portion may be arranged to protrude or concave in the thickness direction of the take-up wheel.

In this embodiment, the speed reduction gear 78 is used between the one-tooth gear 73 and the counter gear 79. However, in general, when the photographic film has a length that can be entirely wound in all tooth ranges of the counter gear 79, the speed reduction gear 78 can be omitted. If the housing 3 has a space for engaging the counter gear 79 with a sufficient number of teeth, the lens-fitted photo film unit may be devoid of the speed reduction gear 78. In this embodiment, the mark 79a is formed in the counter gear 79. The end display window 7 is formed in the front cover for the display 79a to show. On the other hand, a lens-fitted photo film unit generally has a mark 79a and an end when the whole photographic film winding can only be known by the locking of the take-up wheel 10, or when the connecting / lid members 97 and 115 are available and effective. There may be no display window 7.

To indicate the end of the entire winding of the photographic film 12 and the end of the closing of the cassette shutter 53, the swing position of the timing levers 84, 95, 125, 130 or the shutter rotation member ( It is possible to use rotational positions of 88,96,118,134.

In the above embodiment, the lens-mounted photo film unit is pre-mounted with an IX240 type photo film cassette in which the leading end of the photo film proceeds to the outside due to the rotation of the spool. Alternatively, a 135 type photo film cassette may be used in the present invention.

Another preferred embodiment has been described with reference to Figs. 20-29, wherein the cassette shutter in the cassette shell is closed by the final rotational operation of the take-up wheel of the lens-mounted photo film unit. Elements similar to those of the above embodiment are denoted by the same reference numerals. In the manufacturing process of the lens-mounted photo film unit, the counter gear 185 and the intermediate gear 190 are mounted on the upper surface 169 of the cassette storage chamber 21 of the housing. The rotation angles at which they should be positioned are different depending on the length difference of the photographic film 12. The winding wheel 10, the counter gear 185 and the intermediate gear 190 are properly adjusted in position taking into account the number of available frames of the photographic film 12 before being positioned on the top surface 169. The shutter rotating member 189 is disposed in the bearing portion 182 while the positioning member 201 is inserted between the projections 221 and 222.

In the part assembly process of the lens-fitted photo film unit, a dark room is required for mounting the photo film cassette 14 to the lens-fitted photo film unit. The unexposed photo film 12 is pulled from the cassette shell 13 to form a photo film roll. The cassette shell 13 is inserted into the cassette storage chamber 21 while moving in the axial direction. The photo film roll is inserted into the photo film roll chamber through the rear gap. The amount of the photo film 12 being pulled out of the cassette shell 13 is precisely controlled. The photo film 12 is pulled from the cassette shell 13 in such a way that the actual frame position is set in the exposure opening before the first frame position available one frame length. The amount of pulling at the factory is so controlled that it is possible to precisely adjust the predetermined number of revolutions to be made by the take-up wheel 10 to terminate winding up the entirety of the photographic film 12 with the cassette shell 13.

The lens-mounted photo film unit, in which several parts are assembled and the photo film cassette is mounted, is inspected for various performance checks and packed before shipment. When the user purchases the lens-fitted photo film unit, the user rotates the take-up wheel 10 to charge the shutter device. After all the frames are exposed, the guide information is printed on the packaging bag or the outer sheet member of the lens-fitted photo film unit to keep the user rotating the take-up wheel 10 until the take-up wheel 10 is locked.

The shutter mechanism is charged while the lensed photo film unit is waiting to take exposure. 21-23, the engaging projection 216 of the lock lever 186 is located at the top of the cassette storage chamber 21 so as to prevent the intermediate gear 190 and the counter gear 185 from accidentally rotating. 190). In the shutter rotating member 189, the protruding end 220 of the positioning member 201 moves the shutter rotating member 189 to the open position of the cassette shutter 153 without being rotated by the friction of the intermediate gear 190. It is pressed between the projections (221, 221) to hold.

When rotated in the winding direction of the take-up wheel 10, the two-tooth gear 174 below the take-up wheel 10 rotates together counterclockwise. The two teeth 174a, 174b of the two-tooth gear 174 rotate the counter gear 185 clockwise. The counter gear 185 rotates the intermediate gear 190 in the counterclockwise direction. The intermediate gear 190 swings the locking lever 186 against the tilting force of the torsion coil spring 187 while the bottom surface of the connecting protrusion 206 is in contact with the top surface of the ridge 198.

The operation of taking an exposure and the winding operation are repeated. In Fig. 24, the connecting projection 206 of the intermediate gear 190 meets the cutout 183 of the shutter rotating member 189. Figs. In Fig. 25, the connecting projection 206 is pushed to the upper surface of the cam disk 192 under the counter gear 185, and is prevented from moving downward in spite of the tilting force of the leaf spring 188 against it. .

After the final frame is exposed, the take-up wheel 10 is rotated. The holes in the photographic film 12 are released from the teeth of the sprocket wheel. The cam of the counter plate is in contact with the rising part of the holding lever. See FIG. 3. Therefore, the counter plate and the cam member are stopped from rotating. The holding lever does not reach the blocking position, so that the take-up wheel 10 is free to rotate.

The user rotates the take-up wheel 10 according to the guide information printed on the packaging bag or the outer sheet member. When the take-up wheel 10 achieves a predetermined number of revolutions, the photographic film 12 is entirely wound into the cassette shell 13.

In the photographic film winding operation after exposure, the guide groove 193 of the chem disk 192 goes to a position to engage the intermediate gear 190. See FIG. During the manufacture of the lens-fitted photo film unit, the intermediate gear 190 may advance in advance so that the connecting projection 206 meets the guide groove 193 of the cam disc 192 when the take-up wheel 10 achieves a predetermined number of revolutions. Adjusted. Therefore, the guide groove 193 moved to the intermediate gear 190 is sure to meet the connecting projection 206. In addition, the connecting protrusion 206 is positioned together with the coupling cutout 203 formed in the shutter rotating member 189. In the lines XXVII to XXVII in FIG. 27, the intermediate gear 190 is moved downward by the inclined force of the leaf spring 188. As shown in FIG.

Even when the intermediate gear is moved in the axial direction, the intermediate gear 190 is still engaged with the counter gear 185. The user cannot know the axial movement of the intermediate gear 190, but continues to rotate the take-up wheel 10 according to the information in the packaging bag or the outer sheet member. The counter gear 185 and the intermediate gear 190 are rotated by the take-up wheel 10. The engagement cutout 203 of the shutter engagement member 189 has a larger width than the connecting projection 206, so that there is a short range in which the rotation of the intermediate gear 190 is not transmitted to the shutter rotation member 189. . The intermediate gear 190 is rotated until the connecting protrusion 206 is in contact with the coupling cutout 203. The rotation of the intermediate gear 190 is then transmitted to the shutter rotating member 189.

When the rotation of the intermediate gear 190 is transmitted to the shutter rotating member 189, the positioning member 201 is deformed and moved away from the projections 221 and 222 as shown in FIG. The shutter rotating member 189 is rotatable counterclockwise together with the intermediate gear 190.

When the shutter rotating member 189 rotates counterclockwise, the pushing protrusion 200 around the cam portion 197 of the shutter rotating member 189 is push receiving projection of the lock lever 186. Push The locking lever 186 is rotated in the clockwise direction as opposed to the tilting force of the torsion coil spring 187.

When the shutter rotating member 189 is rotated to the closed position of the cassette shutter 153, the second arm portion 212 of the locking lever 186 is further attached to the two-toothed gear 174 as shown in FIG. In proximity to the cutout 183 and the locking protrusion 176. Thus, the winding wheel 10 is locked to rotate. The user who touches the take-up wheel 10 recognizes the closed state of completely winding the photographic film. The winding wheel 10 that is locked keeps the spool 151 at each Q. The photo film cassette 14 to be removed has a display panel located behind the display opening indicating the "exposure" state. See Figure 5.

The lens-fitted photo film unit to be used is sent to a photo lab. The photo finishing worker applies rotational force to the take-up wheel 10 by hand to confirm the end of the entire winding of the photographic film 12. After confirmation, the lens-fitted photo film unit is sent to the photo film cassette 14 removing process for processing. If the termination is not confirmed, then the take-up wheel 10 is rotated so that the take-up wheel 10 is locked. The lens-fitted photo film unit is then processed in the removal process for the photo film cassette 14.

In the removal process, the cassette shutter 153 of the photo film cassette 14 with the lens is closed tightly. The lens-fitted photo film unit is safely disposed in the lighting room. To remove the photo film cassette 14, the bottom lid is opened before the photo film cassette 14 is axially moved out of the cassette storage chamber 21.

The photo film cassette 14 in which the cassette shutter 153 is closed can be removed from the lens-fitted photo film unit in the illumination chamber. After removal of the photo film cassette 14, the spool 151 is fixed to rotate when the cassette three 153 pushes the latch lever to keep the latch lever engaged with the latch gear of the latch member. The indication of the "exposure" status is clearly displayed. The user is prevented from accidentally inserting the photo film cassette in this state into the camera.

Thereafter, the photo film 12 is pulled and released from the photo film cassette 14 and undergoes development and printing. The developed photo film 12 is rewound with the same cassette shell 13. The display panel of the cassette shell 13 is controlled to be stopped behind the display opening indicating the "developing" state before the cassette shell 13 and the photographic material are sent to the user.

Example

In the lens-fitted photo film unit of the present invention, the predetermined number of rotations of the take-up wheel 10 associated with different lengths of the photo film 12 is changed by changing the initial mounting positions of the counter gear 185 and the intermediate gear 190. Can be. When the photographic film 12 is, for example, 25 sheets, the counter gear 185 is mounted away from the position where the guide groove 193 of the cam disc 192 is engaged with the intermediate gear 190 by 6 teeth in a counterclockwise direction. do. The intermediate gear 190 is mounted so that the connecting protrusion 206 is 12 teeth away in the clockwise direction.

When the photographic film 12 is in the form of 40 sheets, for example, the counter gear 185 is separated from the position where the guide groove 193 of the cam disc 192 is engaged with the intermediate gear 190 by 15 teeth in the counterclockwise direction. The intermediate gear connecting protrusion 206 is mounted to be separated by 10 teeth clockwise.

In this embodiment, the position adjustment of the counter gear 185 and the intermediate gear 190 is in the closed state in which the photographic film 12 is completely wound by the cassette shell 13 and the state in which the cassette shutter 153 is rotated to the closed position. It should be noted that depending on the range between, it may be changed to a small range. The number of teeth of the counter gear 185 and the intermediate gear 190 is not limited to the number of teeth according to this embodiment. Positioning for mounting the counter gear 185 and the intermediate gear 190 is changed in accordance with their teeth change.

In the above embodiment, the winding end of the entire photo film 12 can be seen by inspecting the locked state of the winding wheel 10. Alternatively, when a mark or mark is placed on any one surface of the counter gear 185, the intermediate gear 190, the shutter rotating member 189, and the lock lever 186, and the photographic film 12 is finally wound by the cassette shell, It is possible to move the display to the opening in a way that can be observed from the outside.

In this embodiment, the intermediate gear 190 and the shutter rotating member 189 are coaxially supported. However, the shutter rotating member 189 is rotatable around an axis different from that of the intermediate gear 190. In this embodiment, the locking lever 186 for locking the take-up wheel 10 is engaged with the locking projection 176 on the two-tooth gear 174. Alternatively, recesses or cutouts may be formed in the two-toothed gear 174 and engaged with the lock lever 186.

In the above embodiment, the lens-fitted photo film unit is pre-mounted with an IX240 type photo film cassette for allowing the tip of the photo film to go out due to the rotation of the spool. Alternatively, a 135 type photo film cassette can be used in the present invention.

Another preferred embodiment is described above with reference to Figs. 30-35, in which the shutter rotating member is prevented from being fixed to the timing lever. In the parts assembly process of the lens-fitted photo film unit 302 of Figs. 30 and 31, a dark room is necessary for mounting the photo film cassette 318 to the lens-fitted photo film unit 302. The unexposed photo film 316 is pulled from the cassette shell 317 to form a photo film roll. The cassette shell 317 is inserted into the cassette storage chamber 326 while being moved in the axial direction. The photo film roll is inserted into the photo film roll chamber 327 through the rear gap. The amount of the photo film 316 pulled from the cassette shell 317 is precisely controlled. The photo film 316 is pulled from the cassette shell 317 in such a manner that the actual frame position before the first available frame position is set on the exposure opening 325a by one frame. Since the pulling amount is so controlled at the factory, it is possible to precisely adjust the predetermined number of revolutions to be made by the take-up wheel 313 to terminate winding up the entirety of the photo film 316 with the cassette shell 317. .

The lens-mounted photo film unit 302 in which the various parts are assembled and to which the photo film cassette 318 is mounted is tested in various performance perspectives and packaged before the lens-mounted photo film unit 302 is shipped. After all the frames have been exposed, guidance information is printed on the packaging bag or outer sheet member of the lens-fitted photo film unit 302 to allow the user to rotate the take-up wheel 313 until the take-up wheel 313 is locked. .

In Fig. 33, the shutter rotation mechanism of the non-use lens-fitted photo film unit includes a timing lever 391, and the detection projection end 391b thereof contacts the circumferential surface 382a of the cam disk 382. In the shutter rotating member 387, the engaging claw 388a is engaged with the hook-shaped engaging projection end 391a of the timing lever 391. The shutter rotating member 387 is held in the open position of the cassette shutter 329 as opposed to the inclined force of the spring 389. The display portion 394a of the display arm 394 of the timing lever 391 is far from the opening 312 but cannot be seen through the opening 312.

Before the lens-fitted photo film unit 302 is used, its shutter mechanism is not yet charged. The winding wheel 313 is not locked. To make the first exposure, the take-up wheel 313 is rotated to fill the shutter mechanism. The drive shaft 373 causes the spool 328 of the cassette shell (317) to rotate upon the rotation of the winding whirl 313. The photo film 316 is wound around the spool 328 such that the photo film 316 is wound into the cassette shell 317. As the photographic film 316 is moved, the shutter mechanism in the exposure unit 30 is charged. The take-up wheel 313 is then locked by a take-up mechanism for photographic film.

When the take-up wheel 313 is rotated, the one-gear gear 374 rotated together or one tooth 374a of the intermittent gear has the upper gear 377a of the speed reduction gear 377 at a regular angle. Let it rotate The lower gear 377b rotates together with the upper gear 377a to rotate the counter gear 378 in turn. The cam disk 382 rotates together with the counter gear 378 while the detection protrusion end 391b of the timing lever 391 pushes the circumferential surface 382a.

After charging the shutter, the user looks at the watch through the viewfinder window 314 of the viewfinder to track the object of the photograph. If flash use is desired, the charger pushbutton 306 slides upward to charge the flash unit. If different size photos are required, the slider 307 slides through the viewfinder to change the finder frame in which the field of view is viewed. In addition, an imprinting device for marking a mark on the photo film 316 is changed. At the end of the standby operation, the shutter release button 308 is pressed to release the shutter mechanism of the exposure unit 320. The photo film 316 is exposed through the photographing lens 303 and the exposure opening 325a. At the same time, the information display of the print range is imprinted on the portion of the photo film 316 outside the effective area of the frame.

After all of the available frames of the photographic film 316 are exposed, the unwinding mechanism of the exposure unit 302 is not activated. The user rotates the take-up wheel 313 until the take-up wheel 313 is locked according to the guide information. The cutout 383 formed on the cam disk 382 and the perimeter 382a has a timing lever 391 at the end of the winding wheel 313 at a predetermined rotation speed so as to wind the entire cassette film 316 into the cassette shell 317. And the detection protrusion end 391b.

When the cutout 383 meets the detection protrusion end 391b, the timing lever 391 is pushed by the shutter rotating member 387 inclined by the spring 389, swings clockwise, and detects the detection protrusion end ( 391b heads to cutout 383. The locking protrusion 393 of the timing lever 391 contacts the inner surface 375a of the cam raised portion 375. The winding wheel 313 is then rotated further. While one turn or less is made by the take-up wheel 313, the cam ridge portion 375 locking cutout 375b meets the locking projection 393. The inclined force of the spring 389 couples the detection protrusion end 391b with the cutout 383 of the cam disc 382, and couples the locking protrusion 393 with the lock cutout 375b.

The winding wheel 313 is further rotated. In FIG. 34, the locking protrusion 393 is coupled with the locking cutout 375b to prevent rotation of the take-up wheel 313. While the take-up wheel 313 is locked by the timing lever 391, the drive shaft 373 key 373a of the take-up wheel 313 faces the angle θ with respect to the line L. As shown in FIG. In the manner of Table 5, the display panel of the cassette shell 317 is stopped at the display opening projection indicating the "exposure" state. Thus, the user is prevented from accidentally mounting the photo film cassette 318 in this state to the camera.

It should be noted that the winding wheel 313 is rotated after the locking projection 393 of the timing lever 391 is in contact with the inner surface 375a of the cam ridge portion 375. When the take-up wheel 313 achieves a predetermined number of revolutions, the toothless portion of the counter gear 378 meets the lower gear 377b of the speed reduction gear 377. Thus, the counter gear 378 does not rotate even if the take-up wheel 313 rotates.

When the timing lever 391 swings, the shutter rotating member 387 is released from the holding in the open position of the cassette shutter 329. The inclined force of the spring 389 rotates the shutter rotating member 387 counterclockwise toward the closed position of the cassette shutter 329. The cassette shutter 329 is closed by engaging with the engaging shaft 387a of the shutter rotating member 387. The shutter rotating member 387 in the closed position is rotated when the stopper plate 388 is in contact with the stop pin 390. The inclination force of the spring 389 does not cause damage to the cassette shutter 329. After the cassette shutter 329 is closed, the circumferential surface of the stop plate 388 is in contact with the engagement projection end 391a of the timing lever 391 to prevent the timing lever 391 from being improperly swinged.

When the timing lever 391 swings, the display portion 394a of the display arm 394 moves to a position below the opening 312. By observing the opening 312 outside the lens-mounted photo film unit 302, it is possible for the user to confirm the closure of the cassette shutter 329 and the end of the winding of the photo film.

The lens-mounted photo film unit 302 in use is sent to a photo lab. The opening 312 is observed by the photo finishing worker to confirm the end of the entire winding of the photo film 316. After confirmation, the lens-mounted photo film unit 302 is sent to the removal process of the photo film cassette 318 for processing. If the end is not confirmed, then the take-up wheel 313 is rotated so that the take-up wheel 313 is locked. The lens-mounted photo film unit 302 is then processed in the removal process for the photo film cassette 318.

In the removal process, the bottom lid 346 of the lens-mounted photo film unit 302 may be removed from the lens-mounted photo film unit 302 in the lighting chamber. This removal is advantageous because it does not require a dark room. In the photo film cassette 318, the spool 328 is fixed by a latch lever pushed by the cassette shutter 329 in the closed position. The display panel of the photo film cassette 318 is located behind the display opening indicating the "exposure" state.

Thereafter, the photo film 316 is pulled and released from the photo film cassette 318 and undergoes a developing process. The photo film 316 is then rewound with the same cassette shell 317. The display panel of the cassette shell 317 is adjusted so that the cassette shell 317 stops behind the display opening indicating the "developing" state before the photographic cargo is sent to the user.

Because of the individual circumstances of the lens-mounted photo film unit 302, it may take a long time to manufacture the lens-mounted photo film unit 302 and then terminate the use of the photo film 316. The engagement protrusion end 319a of the timing lever 319 may be fixed to the engagement claw 398a of the shutter rotation member 387 due to environmental factors including the strong tilting force of the spring 389 and heat and vibration. However, the cam disk 382 has a pre-shifter projection 384 located upstream from the cutout 383.

In Fig. 35, the preliminary movement protrusion 384 contacts the detection protrusion end 391b to swing the timing lever 391 before the cutout 383 faces the detection protrusion end 391b of the timing lever 391. do. Therefore, it is possible to break the fixing property between the engagement projection end 391a of the timing lever 391 and the engagement claw 388a of the shutter rotation member 397. The cassette shutter 329 is properly closed when the cutout 383 faces the detection protrusion 391b.

In this embodiment, the timing lever 391 swings just before the end of the entire winding of the photographic film 316. Optionally, a protrusion is formed on the take-up wheel 313 or one toothed gear 374 to slightly swing the time lever 391 so that the timing lever 391 swings every time the take-up wheel 313 rotates back. do. This makes it possible to avoid inseparable fixation.

In this embodiment, the winding wheel 313 is locked when the cassette shutter 329 is closed. However, the locking mechanism of the cassette shutter 329 can be eliminated. In this embodiment, the timing lever 391 is swinged by the biasing force of the spring for the shutter rotation member 387. Optionally, the spring can bias the timing lever 391, of which the swing rotates the shutter rotating member 387 to the closed position of the cassette shutter 329.

In this embodiment, the timing lever 391 is used to indicate the end of the whole winding of the photographic film 316 and the closing of the cassette shutter 329 by the indicator portion 394a and the indicator opening. Optionally, the indicator arm 394 may protrude from or enter the lens-mounted photo film unit 302 in response to the rotation of the shutter rotating member 387 to the closed position. Further, the indicator can be formed on top of the counter gear 378 or can be loaded in an observable manner through the opening. It is also possible to eliminate such visible indicators. Information of the end can be provided only to the user through the locked state of the take-up wheel 313.

In this embodiment, the speed reduction gear 377 is used between the gear 374 and the counter gear 378 having one tooth. In general, however, the speed reduction gear can be eliminated if the photographic film has a length that can be wound entirely in the entire tooth range of the counter gear 378. If the interior of the lens-mounted photo film unit 302 has a space for introducing a counter gear 378 having a sufficient number of teeth, the lens-mounted film unit 302 can eliminate the speed reduction gear 377.

In this embodiment, the end detector or the intermittent transfer unit operates by counting the rotation of the take-up wheel 313 for winding the photo film 316 to the cassette shell 317. Alternatively, the one described with JP-A-8-211565 can be used. According to this, the presence of the photographic film 316 is oriented at a position close to the photographic film passage of the photographic film cassette 318.

The timing lever 391 cannot swing unless the timing lever 391 cannot swing upon the end detection of the direct detection form of the photo film presence outside the cassette shell 317. The timing lever 391 may be formed of a resin different from a resin in which the shutter rotation member 387 may be formed. Many resin examples are polyacetal (POM) and polystyrene (PS). Inseparable fixation may not occur between other resins. This can reliably close the cassette shutter 329 without preliminary swinging of the timing lever 391.

Reference numeral 310 in FIG. 30 denotes an indicator or light guide for indicating an end state of the flash apparatus. The light guide 310 protrudes through the opening 311.

In FIG. 31, the front cover 322 includes a front cover frame 340 and a front cover panel 341 mounted at the center of the front cover frame 340. The front cover frame 340 includes a shutter release button 308 and an opening 312 integrally formed therewith. A vision selection plate (not shown) is introduced between the front lid frame 340 and the front lid panel 341. In addition, the charge push button 306 is disposed on the front cover frame 340. The field of view selection plate is rotatable around the photo axis between the front cover frame 340 and the front cover panel 341, and is rotated by the operation of the slider 307, which is an arc-shaped slot 342 formed in the front cover panel 341. It is movable inside. The field of view selection plate has a plurality of finder frames that are movable away from and to a position between the objective window 304 and the viewfinder lens 332 of the photographing unit 320. These finder frames limit the internal range of the viewfinder to each range of panorama, hi-vision and standard.

The field of view plate is also changed on the printing device 344 to inscribe the dot mark on the photographic film 316 by the information of the printing size. The printing device 344 is introduced under the light blocking tunnel 325 of the photo film receiving unit 319. Its detailed structure is not shown in the drawings. The printing device 344 includes two printing openings, a display selection plate segment, a printing light guide, a light blocking cover, a rotation lever, and a sliding lever. Each of the two printing openings faces a portion of the photographic film 316 outside its effective frame area. The display selection plate segment opens and closes the printing opening in an optional manner. The printing light guide guides the exposure light toward the printing aperture via the display selection plate segment. The light blocking cover prevents incident light from entering the element. The rotary lever and the sliding lever cooperate to transmit the rotation of the field selector to the display selector segment. There is a light emitting element fixed to the back of the printed circuit board 334 of the flash device 321 to emit the exposure light.

Although the present invention has been described in detail by the preferred embodiments with reference to the accompanying drawings, it is apparent that those skilled in the art can make many changes and modifications. Therefore, it should be understood that such changes and modifications are included within the scope of the present invention unless otherwise stated.

1 is a perspective view illustrating a photographic film unit with a lens;

2 is an exploded perspective view illustrating a housing of a lens-fitted photo film unit;

3 is an exploded perspective view illustrating an exposure unit of a lens-fitted photo film unit;

4 is an exploded perspective view illustrating a photographic film cassette for a photographic film unit with a lens;

5 is a side view illustrating a photographic film cassette.

6 is an exploded perspective view illustrating the position detector and the locking device;

7 is a plan view illustrating a state before the position detector and the locking device are not operated.

8 is a plan view illustrating an operating state of the position detector and the locking device.

9 is an exploded perspective view illustrating another preferred position detector and locking device.

10 is a plan view illustrating a state before the position detector and the locking device are actuated.

11 is a plan view illustrating an operating state of the position detector and the locking device.

12 is a perspective view illustrating a state before the connection / cover member is operated.

Figure 13 is a perspective view illustrating an operating state of the connection / cover member.

Fig. 14 is a partially cutaway sectional view illustrating a state before the connection / cover member of another preferred embodiment is actuated.

Fig. 15 is a partially cutaway sectional view illustrating an operating state of the connection / cover member.

16 is a plan view illustrating a state before the position detector and the locking device of another preferred embodiment are operated.

17 is a plan view illustrating an operating state of the position detector and the locking device.

Fig. 18 is a plan view illustrating a state before the position detector and the locking device in yet another preferred embodiment are actuated.

19 is a plan view illustrating an operating state of the position detector and the locking device.

20 is an exploded perspective view illustrating the shutter rotating member, the transmission device and the wheel locking device according to the embodiment in which the cassette shutter is closed due to the rotation of the winding wheel;

21 is a partial sectional plan view illustrating a state before the delivery device and the wheel locking device are actuated.

FIG. 22 is a sectional view taken along the line XXII-XXII in FIG. 21, illustrating a delivery device; FIG.

FIG. 23 is a sectional view taken along the line XXIII-XXIII of FIG. 21, illustrating a delivery device.

24 is a partial cross-sectional plan view illustrating a state in which the connecting protrusion is received in the cutout with respect to the delivery device.

25 is a sectional view taken along the line XXV-XXV in FIG. 24, illustrating a delivery device.

26 is a partial cross-sectional plan view illustrating a state in which the intermittent gear slides in relation to the delivery device.

FIG. 27 is a cross sectional view along XXVII-XXVII line in FIG. 26 illustrating a delivery device; FIG.

Fig. 28 is a partial sectional plan view illustrating a state in which the wheel locking device is started;

Fig. 29 is a partially cut away plan view illustrating a state in which the wheel lock does not move the take-up wheel;

30 is a perspective view illustrating another lens-fitted photo film unit.

Fig. 31 is an exploded perspective view illustrating the photographic film unit with a lens.

32 is an exploded perspective view illustrating a structure including a shutter rotating member to close a cassette shutter.

33 is a partial sectional plan view illustrating a state before the shutter rotation member is operated.

Fig. 34 is a partial sectional front view illustrating the state of the shutter rotating member at the end of winding up the photographic film.

35 is a partial cross-sectional plan view illustrating a small swing state of a lever for breaking the lock immediately before the end of the winding.

Claims (24)

A photo film housing, a cassette storage chamber and a photo film roll chamber formed in the photo film housing, a cassette stored in the cassette storage chamber, and a photo film of a predetermined length stored in a roll shape in the photo film roll chamber, wherein the cassette is a cassette shell And a spool rotatably housed in the cassette shell, wherein the photo film unit is fixed to the spool. A winding wheel connected to the spool, the winding wheel being operated at the outside of the photo film housing every time after one frame is exposed from the photo film to wind the photographing portion of the photo film around the spool in the cassette; Position detectors 83; 86, 108, 127, 130b for detecting whether the take-up wheel has made a predetermined number of rotations depending on the predetermined length of the photographic film; And A locking mechanism 75, 85; 101, 105 which locks the rotation of the winding wheel in response to the rotation to the predetermined rotational position after a predetermined number of turns of the winding wheel, and prevents the winding wheel from rotating after the photographic film is all wound on the cassette; 121,123; 132,136); Photo film unit with lens to include. The method of claim 1, wherein the cassette shell, A display panel rotatably disposed integrally with the spool; The display panel is partially open to the outside so that the display panel displays the photographing state when the spool is stopped at a predetermined rotational position so as to display the photographing state and the non-photographing state of the photographic film so as to be open on the wall covering the display panel. At least two indicator openings arranged in a rotational direction of the display panel; And A cassette shutter for opening and closing a photographic film passage formed in the cassette shell for passing the photographic film; Photo film unit with a lens comprising a. The method of claim 2, An intermittent gear rotatably disposed integrally with the take-up wheel and having at least one tooth; And a counter gear geared with the intermittent gear, the counter gear adapted for counting a frame generated on the photographic film by moving the intermittent gear at a standard angle; The position detectors (83; 86, 103, 127, 1306) A cam disk disposed in a rotatable manner integrally with said counter gear; A detector protrusion disposed to be swingable near the take-up wheel, the detector protrusion meeting with a circumferential surface of a cam disk; An inclined member for pushing the detector projection onto the circumferential surface of the cam disk; And A detector cutout formed on a circumferential surface of the cam disk and facing the detector protrusion when the predetermined number of turns of the winding wheel are finished to swing the detector protrusion by the inclined member to signal the end of rotation. And a photo film unit with a lens, wherein the lens is engaged with the detector cutout. 4. The lens-fitted photo film unit according to claim 3, further comprising a timing lever disposed near the winding wheel so as to be swingable between the first and second positions, wherein the detector protrusion is formed in the timing lever. 4. The shutter of claim 3, further comprising a shutter rotating member connected to an end of the cassette shutter for rotating the cassette shutter which opens the passage when rotated to the open position and closes the passage when rotated to the closed position, The inclined member inclines the shutter rotating member toward the closed position of the cassette shutter, The timing lever further comprises an auxiliary protruding end disposed close to the shutter rotating member; When the timing lever is in the first position, the detector protrusion is mirrored by the circumferential surface of the cam disk and the auxiliary protrusion end moves in the rotational path of the shutter rotating member to move the shutter rotating member against the inclined member. Held in the open position of; When the timing lever is in the second position, the detector protrusion is received in the detector cutout and the auxiliary protrusion end moves out of the rotation path of the shutter rotating member to cause the inclined member to rotate the shutter rotating member to the closed position of the cassette shutter. The photographic film unit with a lens characterized by the above-mentioned. The method of claim 5, Entry and exit openings covering the cassette shell and formed in the lower wall of the housing and adapted for external operation for removal of the cassette shell; And And further comprising a connection / lid member arranged to extend between the shutter rotation member and the entrance opening to close the entrance opening while the cassette shutter is in the open position, wherein the connection / lid member is closed by the use of the shutter rotation member. A photographic film unit with a lens that opens in response to the rotation of the cassette shutter in position. The method of claim 6, wherein the connection / lid member is slidable up and down and has an upper end and a lower end in contact with the shutter rotating member, The connecting / lid member further comprises a lower blocking plate on the lower end to close the entrance opening; The connecting / lid lid pushing the upper end on the shutter rotating member when the shutter rotating member is in the open position of the cassette shutter, and sliding the connecting / lid member upward when the shutter rotating member is rotated to the closed position of the cassette shutter; A photographic film unit with a lens further comprising a slider spring for tilting the member upward. The method of claim 1, wherein the locking mechanism (75,85; 101, 105; 121 123; 132, 136) A ring contact surface disposed in a rotatable manner integrally with the take-up wheel; A first retainer portion disposed on the ring contact surface; A second retainer portion disposed to face the ring-shaped contact surface and engageable with the first retainer portion; And An inclined member for pushing the second retainer portion to the ring-shaped contact surface, the first retainer portion facing the second retainer portion when the take-up wheel is rotated in a predetermined rotational direction, the inclined member being the first retainer portion and the second retainer; A lens-fitted photo film unit for swinging the second retainer portion to be coupled thereto. 9. The lens-fitted photo film unit according to claim 8, wherein the first retainer portion includes a cutout formed on the ring-shaped contact surface and receives the second retainer portion. 10. The lens-fitted photo film unit according to claim 9, wherein a ring-shaped contact surface is formed around the intermittent gear, and the second retainer portion is formed on the timing lever. 10. The lens-fitted photo film unit according to claim 9, wherein the ring-shaped contact surface is formed inside the ring-shaped cam ridge, and the ring-shaped cam ridge is formed on the outer circumference of the winding wheel so as to protrude downward from the winding wheel. 10. The method of claim 9, wherein the ring-shaped contact surface is formed inside the ring-shaped cam ridge and the ring-shaped cam ridge is formed on the outer circumference of the take-up wheel so as to project downward from the take-up wheel; And further comprising a shutter rotating member connected to the end of the cassette shutter for rotating the cassette shutter, the cassette shutter being opened in the cassette shell at a position inside the passage formed for passage of the photographic film and opening the passage when rotated to the open position, Closes the passage when rotated to the closed position, And a second retainer portion formed on the shutter rotating member to be pushed onto the ring-shaped contact surface of the cam ridge when the shutter rotating member is rotated to the closed position of the cassette shutter. A ring contact surface is formed around the intermittent gear; At the end of the cassette shutter, which is housed in the cassette shell at a position inside the passage formed for passage of the photographic film and opens the passage when rotated to the open position and rotates the cassette shutter closing the passage when rotated to the closed position. A connected shutter rotating member; A locking member disposed in a rotatable manner close to the intermittent gear and having a second retainer portion formed thereon; The lens-fitted photo film further includes a pushing protrusion formed to protrude from the shutter rotating member for pushing and rotating the locking member when the shutter rotating member is rotated to the closed position of the cassette shutter so as to push the second retainer portion onto the ring-shaped contact surface. Unit. A photo film housing, a cassette storage chamber and a photo film roll chamber formed in the photo film housing, a cassette stored in a cassette storage chamber, and a photo film of a predetermined length stored in a roll shape in the photo film roll chamber, wherein the cassette is a cassette. A shell, a spool rotatably housed in a cassette shell, and a rotatable cassette shutter for opening and closing the photo film passage in the cassette shell, the cassette shutter opening the passage and rotating to the closed position when rotated to the open position. In the lens-fitted photo film unit which is fixed to the spool. A winding wheel connected to the spool, the winding wheel being operated at the outside of the photo film housing every time after one frame is exposed from the photo film to wind the photographing portion of the photo film around the spool in the cassette; A shutter rotating member 189 connected to an end of the cassette shutter and configured to rotate the cassette shutter; It is operated when the take-up wheel has made a predetermined number of rotations depending on the predetermined length of the photo film, and is used to rotate the shutter rotating member to the closed position of the cassette shutter in response to the rotation of the cassette shutter. The film is completely wound into the cassette shell. Transfer mechanisms 193, 203, and 206 to close the cassette shutters if necessary; And A wheel for locking the take-up wheel in a predetermined position in response to the cassette shutter rotating to the closed position, the wheel preventing the take-up wheel from rotating in response to the spool rotating to a predetermined rotational position after the cassette shutter is closed by the transfer mechanism. Locking Mechanism (176,186,200) Photo film unit with a lens comprising a. The method of claim 14, wherein the photo film unit, An intermittent gear rotatably disposed integrally with the take-up wheel and having one or more teeth; And And a counter gear that is engaged with the intermittent gear and is conformally advanced by the rotation of the intermittent gear, and counts a frame generated in the photographic film. The delivery mechanism (193, 203, 206), An intermediate gear rotatably disposed about an axis of the shutter rotating member 189 and rotated by a counter gear; A cam disk rotatably disposed integrally with the counter gear; A guide groove formed on an outer circumference of the cam disk so as to extend substantially parallel to the axial direction of the cam disk; Coupling protrusions protruding from the outer circumference of the intermediate gear and being pushed out of the cam disc substantially parallel to the axial direction of the intermediate gear, received in the guide grooves upon completion of a predetermined number of turns of the take-up wheel, to allow the intermediate gear to slide axially ; And It is formed on the outer periphery of the shutter rotating member, the coupling projection is coupled to the coupling projection after being received in the guide groove, the coupling cutout for transmitting the rotation of the intermediate gear to the shutter rotation portion; Photo film unit with a lens comprising a. 16. The lens-fitted photo film unit according to claim 15, further comprising a spring for biasing the intermediate gear toward the shutter rotation member (189). 17. The photographic film unit with a lens according to claim 16, wherein an initial relative position at which the counter gear is engaged with the intermediate gear is changed in consideration of a change in rotation of a predetermined number of winding wheels associated with a change in a predetermined length of the photographic film. The method of claim 17, wherein the wheel locking mechanism (176, 186, 200), A swingable locking lever having a first arm facing the shutter rotating member 189 and a second arm meeting the intermittent gear; A spring member for inclining the lock lever in a direction in which the second arm portion moves away from the intermittent gear; A pushing protrusion disposed on the shutter rotating member; And A locking protrusion disposed on the intermittent gear, wherein the locking lever is attached with a lens to engage the locking protrusion so that the second arm member rotationally locks the take-up wheel by swinging against the inclined member when the first arm portion is pushed by the push protrusion. Photo film unit. 19. The photographic film unit with a lens according to claim 18, further comprising a coupling protrusion disposed on the first arm to prevent the intermediate gear from accidentally rotating by engaging with the teeth of the intermediate gear by a bias of the spring member. The method of claim 14, wherein the cassette shell, A display panel disposed in a rotatable manner integrally with the spool; And And at least two indicator openings formed to be open in the wall covering the display panel so that the display panel appears externally and partially, respectively, and disposed in the rotational direction of the display panel to indicate the photographing state and the non-photographing state of the photographic film. And the indicator is a photographic film unit with a lens which displays a photographed state when the spool stops at a predetermined rotational position. A photo film housing, a cassette storage chamber and a photo film roll chamber formed in the photo film housing, a cassette stored in the cassette storage chamber, and a photo film of a predetermined length stored in the photo film roll chamber, wherein the cassette is provided in the cassette shell, the cassette shell. A rotatable cassette shutter for opening and closing the photo film passageway in the spool and cassette shell housed in a rotatable manner, the cassette shutter opening the passageway when rotated to the open position and opening the passageway when rotated to the closed position. In the lens-fitted photo film unit which is closed and the photographic film is fixed to the spool, A winding wheel connected to the spool, the winding wheel being operated outside the photo film housing every time one frame is exposed on the photo film to wind up the photographed portion of the photo film in a cassette around the spool; A shutter rotating member 387 connected to the end of the cassette shutter for rotating the cassette shutter; Disposed in a swingable manner between the first and second positions to engage the shutter rotating member against the spring to engage the shutter rotating member in the open position of the cassette shutter when in the first position and the shutter when in the second position A timing lever 391 which the rotating member releases from engagement in the open position of the cassette shutter; An intermittent transfer unit (382, 383) operated when said winding wheel makes a predetermined number of turns suitable for winding the photographic film entirely in the cassette shell to swing the timing lever to the second position; And Timing lever and shutter rotation as the shutter rotating member is engaged in the opening position of the cassette shutter by being disposed in the intermittent transmission unit to swing the timing lever in the reverse direction in the second direction before swinging the timing lever toward the second position. And a preliminary moving member (384) for breaking the fixed state between the contact points of the members. The method of claim 21, wherein the photo film unit, An intermittent gear rotatably disposed in coordination with the take-up wheel and having one or more teeth; A counter gear for meshing with the intermittent gear and advancing conformally by rotation of the intermittent gear, for counting a frame generated in the photographic film; And And a timing lever 391 including a coupling protrusion end disposed adjacent to the shutter rotating member 387 and a detection protrusion end substantially protruding from the coupling protrusion end. The intermittent transfer units 382 and 383 are A cam disk rotatably disposed integrally with the counter gear and the detection protrusion end being pushed; And It is formed on the outer periphery of the cam disk, the cutout for receiving the detection projection end when the end of the predetermined number of turns of the take-up wheel to swing the timing lever; The preliminary moving member 384, It is disposed outside the cam disk next to the cutout and protrudes radially from the cam disk and faces the detection projection end before the end of the predetermined number of turns of the take-up hull to destroy the fixed state of the engagement projection end and the shutter rotation member. A protrusion for sliding the protrusion to swing the timing lever; Photo film unit with a lens comprising a. A photo film housing, a cassette storage chamber and a photo film roll chamber formed in the photo film housing, a cassette stored in the cassette storage chamber, a photo film of a predetermined length stored in a roll shape in the photo film roll chamber, and the cassette includes a cassette shell, And a rotatable cassette shutter for opening and closing the photo film passageway in the cassette shell, the spool housed in a rotatable manner in the cassette shell, which opens the passageway when rotated to the open position and when rotated to the closed position. In the lens-mounted photo film unit in which the passage is closed and the photo film is fixed to the spool, A winding wheel connected to the spool and operated at an outside of the photo film housing every time one frame is exposed on the photo film so that the photographing portion of the photo film is wound on the cassette around the spool; A shutter rotating member 387 connected to the end of the cassette shutter for rotating the cassette shutter; A spring 389 for tilting the shutter rotating member towards the closed position of the cassette shutter; Disposed in a swingable manner between the first and second positions to engage the shutter rotating member against the spring to engage the shutter rotating member in the open position of the cassette shutter when in the first position and the shutter when in the second position A timing lever 391 which the rotating member disengages from the engagement at the open position of the cassette shutter; An intermittent transfer unit (382, 383) operated when said winding wheel makes a predetermined rotation suitable for winding the photographic film entirely in the cassette shell to swing the timing lever to the second position; And And the timing lever is formed of a material different from a material in which the shutter rotating member is formed to prevent the timing lever and the contact point of the shutter rotating subsidiary from being fixed to each other. A photo film housing, a cassette storage chamber and a photo film roll chamber formed in the photo film housing, a cassette stored in the cassette storage chamber, a photo film of a predetermined length stored in a roll shape in the photo film roll chamber, and the cassette includes a cassette shell, A spool housed in a rotatable manner in the cassette shell and a rotatable cassette shutter for opening and closing the photographic film passage in the cassette shell, the cassette shutter opening the passage when rotated to the open position and rotating to the closed position. In the lens-fitted photo film unit in which the passage is closed and the photo film is fixed to the spool, the lens-fitted photo film unit includes: A winding wheel connected to the spool, the winding wheel being operated outside of the photo film housing every time one frame is exposed on the photo film to wind up the photographing portion of the photo film in a cassette around the spool; A shutter rotating member connected to an end of the cassette shutter to rotate the cassette shutter; And In response to the rotation of the take-up wheel, the take-up wheel is operated when a predetermined number of rotations are made depending on a predetermined length of the picture film in order to rotate the shutter rotating member to the closed position of the cassette shutter, so that the picture film is completely wound on the cassette cell. And a transfer mechanism for closing the cassette shutter after being finished.

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