TW507109B - Motorized single use camera - Google Patents

Abstract

A single use camera which has a motor to advance film comprising a light-tight casing having an exposure aperture through which exposures are made, an unexposed film wound up around a pre-winding take-up spool disposed on one side of the exposure aperture, a removable film cartridge having a film take-up spool therein disposed on the opposite side of the exposure aperture from the pre-winding take-up spool, a motor to pre-wind the unexposed film around the pre-winding take-up spool beforehand and to wind exposed frames of the film back to the removable film cartridge. The motorized single use camera uses the built-in motor for all the film windings so that any special film loading device to roll up the unexposed film beforehand outside of the camera in a dark room is not required, and the same motor can be used for film winding after each exposure so that any manual film winding mechanism is not required.

Description

507109 A7 B7 V. Description of the invention (1 Field of the invention The present invention relates to a single-use camera. This single-use camera is first loaded with a photographic film, that is, a 135-size film roll, and is provided with a simple exposure mechanism such as a photographic lens, a A shutter and a film transfer mechanism. The present invention is particularly related to a single-purpose camera, the film transfer mechanism and the advance film loading are driven by a built-in motor, and the present invention is particularly related to the structure of a camera housing, which can be easily removed The exposed film does not damage any part of the camera body, so the manufacturer can recycle the camera without any additional components or modifications for recycling. BACKGROUND OF THE INVENTION Single-use cameras are very popular in the market today, and single-use cameras are advanced Loaded with unexposed negatives, but after each exposure, the negatives are rolled back into a removable case in the camera. The purpose is to allow users to take pictures at the time without having to buy expensive cameras. However, these single Use of disposable cameras is not possible due to body structure factors The exposed film can not be removed unless a part of the body is damaged. Moreover, the method of loading the film into the camera in advance is quite complicated. As disclosed in US Patent Nos. 4,884,087 and 4,972,649, it is usually assembled by the following steps: Disposable Cameras ·· A roll of negatives drawn from a negative E (protective part) is rolled into a roll in a dark room; a roll of negatives and negative IS are formed in the main body of a single-use camera _In individual receiving rooms; a back cover is fitted to the main body to close the single-use camera with light tightness; and the single-use camera is sealed so that it cannot be opened. In order to perform the above steps, a special film loading device needs to be provided, which includes I = The national standard (CNS) of this paper is suitable for the country. A4 specification (21〇297297) -4- A7 B7 V. Description of the invention (2) Miscellaneous institutions and also need to be too expensive It is well known that the operation of this darkroom film is quite cumbersome in a dark room. The back door of the known single-purpose camera is light-tight, so the right side does not damage the light-tight film shell. If it is turned on, the exposed film cannot be taken out of the camera. It includes the use of a special film loading device in the dark room to know that the dagger is pre-rolled into a roll, and the light-tight film casing must be destroyed, and the exposed film will be removed from the camera. This problem will prevent manufacturers or lighting processors from easily recycling single-use cameras. It is impossible for ordinary users to follow the above steps, so conventional single-use cameras on the market today are not recyclable. Only one unit can be repeated. It is used in a new single-purpose camera. If a single-purpose camera similar to the single-purpose camera of the present invention has a built-in motor, the built-in motor can easily pre-roll the film in the pre-roll of the film under daylight. On the barrel shaft, there is no need to add special accessories (such as a film loading device) located outside the camera, and the single-purpose camera can be easily loaded with a new film again in the daylight using a motor. Moreover, if a back door is provided for a single-purpose camera, the exposed negative film can be easily removed from the camera without damaging any part of the camera body, and the manufacturer or camera developer can recycle these single-purpose cameras. Does not cause any problems. In the case of the single-purpose camera of the present invention, the manufacturer or camera developer does not need to provide costly tools such as a film loading device used in a dark room, and does not need to destroy any part of the single-purpose camera, and can be very The single-purpose camera can be easily reloaded with new negatives under the sun, and individual users can complete the above functions without any special tool settings. Moreover, if the same built-in motor can automatically wind up the back of the paper after each exposure, the paper size is applicable to China National Standard (CNS) A4 (210 X 297 male yellow) 507109 A7 __ B7 V. Description of the invention (3 ~ '~' '~ Film without manual film winding mechanism, the operation of the single-purpose camera will be much more convenient than the conventional manual winding single-purpose camera. Object of the invention Therefore, one object of the present invention is to provide a single-purpose camera, This single-purpose camera has a built-in motor, by which the film can be pre-rolled and reloaded quite easily without using any kind of mechanical assistance outside the camera. Another object of the present invention is A single-purpose camera is provided. The single-purpose camera has a built-in motor, and the built-in motor has an automatic film winding mechanism. The automatic film winding mechanism is a specially designed simple mechanism to drive the film driving direction from a The roll is switched to normal negative film transfer and winding or reversed, and the tightening and releasing of the ratchet and shutter can also be controlled. Another object of the present invention is to provide A single-use camera with a back door that can be easily opened to move exposed negatives out of the camera without damaging any part of the camera. SUMMARY OF THE INVENTION In order to achieve the above object, according to the present invention, The single-purpose camera system includes: a main body Shao 'which has an exposure opening; a motor built in the main body to pre-roll a film or rewind a negative film; a negative film pre-rolling take-up tube shaft, which is located in the main body Shaozhong The motor on one side of the exposure opening closes the unexposed film around the film pre-rolling take-up spool shaft; a removable film cassette with a film winding spool tube, and the end points of the film are inserted and fixed In the groove of the film winding shaft cylinder, a removable film cassette is arranged on the other side of the exposure opening in the main body portion; a film winding member is built in the main body portion. Paper size applies to China National Standard (CNS) A4 specifications (210X 297 public directors) 507109 A7 ------ B7 _ V. Description of the invention (4) ~ ----- Medium & driven by the motor and used along the negative Pre-rolled take-up tube shaft unexposed film It is pre-rolled and used to roll the exposed frame back into the film cassette; a shutter and ratchet control device that controls the exposure and film winding members; a back cover whose k-cross side is fixed to the main body with a hinge It can be closed and opened by a locking-unlocking device; and a front cover which is fixed to the main body portion from the front side so that the entire camera body enters into a light-tight enclosure together with the closed back cover. According to the present invention, a The new unexposed film is pre-rolled around the pre-roller take-up spool, and after each exposure, the unexposed film is rolled back into a grid along the film spool of the film cassette. Also, the motor built into the main body It drives the pre-rolling of unexposed negatives and the rewinding of exposed negatives. When all the frames of the negatives are exposed, the negatives are completely rolled back into the negatives box, and the back door can be opened in daylight to change the negatives from a single use. Camera moved out. In the case of the single-use camera of the present invention, the exposed film can be removed from the camera without destroying any part of the single-use camera. Generally, a conventional 35 mm compact camera with motorized film drive uses film winding to rotate a ratchet to calculate the number of perforations, and stops the motor operation after a film frame has been transferred. At the same time, use the ratchet to tighten the shutter. Therefore, after the shutter is released and the film is moving, the ratchet is always rotationally coupled with the running of the film, and the shutter is also tightly coupled with the ratchet rotation. Therefore, in the case of a conventional b-mm motor driving a small camera, to rewind the negative after the entire negative has been exposed or to pre-roll an unexposed negative, it is always necessary to provide a switch. The clutch mechanism is used to change the rotation direction of the motor or switch the running direction of the film, so that the ratchet does not tighten the shutter. Otherwise, this paper standard applies to @ @ 家 标准 (CNS) Α4 specification (21G X 297 public director) " " " " ------------- "

If the running direction of the film is switched from photographing to the pre-rolling or rewinding direction, the ratchet will be blocked because the shutter tightening mechanism does not move in the film pre-rolling or rewinding direction. In the single-purpose camera of the present invention, the built-in camera is used. The motor unrolls the unexposed negative film drawn from the negative film E around the negative film pre-rolling take-up reel, and also rolls the exposed negative film back into the negative film after each exposure. Therefore, the built-in motor should have a different rotation direction between the pre-roll of the unexposed film and the return of the exposed film roll to the negative film. In each case, the rotation direction of the built-in motor needs to be switched. In order to achieve the switching of the motor rotation direction, the single-purpose camera of the present invention uses a method of changing the position of the battery in the battery chamber, so that the power flows from one direction to another according to the position of the battery poles in the battery chamber. Direction, and the direction of rotation of the motor can be switched from one direction to another. In order to use the above-mentioned switching method, the battery of the single-use camera of the present invention has a battery chamber with a special design, which has a common spring contact portion on one side and two different kinds of metals on the other side. The contact 邛 'selects one of the two metal contact portions according to the polarity of the inserted battery, and changes the direction of power flow accordingly. By changing the rotation direction of the motor, the running direction of the film is also changed from the pre-rolling direction (that is, the direction in which the film runs out of the film cassette to the pre-rolling take-up shaft) to the film winding direction (that is, the film is pre-rolled from the film) Take the tube shaft and run back to the direction of the box) 〇Using a ratchet to achieve the shutter tightening and negative film travel distance control, this ratchet system engages the perforation of the negative. When the film is moved for pre-rolling, the ratchet must be • 8-This paper size is in accordance with China National Standard (CNS) Regulation 8 ^^ 297 109)

Negative film perforation with P-Si Yun-free rotation, and should not cause any shutter tightening or negative film distance control (to stop the film running). Conversely, when the film is moved back into the film magazine, the ratchet must also rotate with the running film hole, but at this time when the film is moved, the ratchet must close the shutter for the next exposure, and it must be tightened with the shutter. Cooperate with the ratchet control device to stop the film running after each exposure. In order to switch the ratchet function according to the running direction of the film or the rotation direction of the motor, the single-purpose camera of the present invention has a simple mechanism, which serves as a shutter tightening and releasing device and includes a ratchet. When the film is rolled back to the bottom When in the cassette, 'this ratchet is rotated in one direction by the moving film perforation, and when the film is pre-rolled tightly around the axis of the film pre-rolling take-up spool, it can make the ratchet accompany the moving film in the other direction. The perforations are free to move without any kind of clutch. This simple shutter-ratchet control has various functions such as shutter closing, shutter release, cutting the motor to the on and off states, disengaging the ratchet from the shutter tightening mechanism, and pre-rolling the negative. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front perspective view of a motorized single-purpose camera according to an embodiment of the present invention; FIG. 2a is an exploded perspective rear view of the motorized single-purpose camera of FIG. 1, with a back door opened; FIG. 2b is an exploded perspective rear view of the motorized single-purpose camera of FIG. 1, in which a film cassette is placed in a film cassette chamber; FIG. 3 is a gear train and motor of the motorized single-purpose camera of FIG. Exploded perspective view

Hold

This paper size applies to China National Standard (CNS) A4 specification (210 X 297 cm) 507109 A7 _ B7_ __- — V. Description of the invention (7) Figure 4 is a three-dimensional rear view of a motorized single-purpose camera with the battery turned on Cover to show the location of battery placement; Figure 4a is a battery roll pre-rolled and photographed illustration of the motorized single-purpose camera core of Figure 1; Figure 4b shows the motorized single-purpose camera installed in Figure 1 The battery contacts in the battery compartment; Figure 5 is the circuit diagram of the motorized single-purpose camera of Figure 1 'where unexposed negatives are being pre-rolled; Figure 5a is the circuit diagram of the motorized single-purpose camera of Figure 1 after pre-rolling is completed Figure 5b is the circuit diagram of the motorized single-purpose camera of Figure 1 with the shutter closed; Figure 5c is the circuit diagram of the motorized single-purpose camera of Figure 1 in which negatives are being transferred; Fig. 6a is an exploded perspective view of the shutter-ratchet control device of the motorized single-purpose camera of Fig. 1, in which the shutter is tightened, the battery is placed in the photographic position, and an unexposed film is in the exposure grid. Figure 6b is an exploded perspective view of the shutter-ratcheting control device of the motorized single-purpose camera of FIG. 1, in which the unexposed film is pre-rolled around the pre-roller take-up spool shaft. Figure 6c is an exploded perspective view of the shutter-ratchet control device of the motorized single-purpose camera of Figure 1 'in a state where the unexposed negative film has been prerolled, but the battery is still in the preroll position in the battery compartment; -10 -This paper size is suitable for wealth @ ® 家 standard (CNS) A4 specification (21G X 297 public love) --- 507109 A7 ___ B7_ 5. Description of the invention (8 ~ ^ 1 Figure 6 d is the single purpose of motorization of Figure 1 An exploded perspective view of the shutter-ratchet control device of the camera, in which the shutter has been released but the shutter release button has not returned to the initial position; FIG. 6e is an exploded perspective view of the shutter-ratchet control device of the motorized single-purpose camera of FIG. 1 , In which the negative is being wound onto the take-up spool located in the negative box after the shutter has been released; FIG. 6 f is an exploded perspective view of the shutter-ratchet control device of the motorized single-purpose camera of FIG. 1 After the entire negative has been exposed, the negative has been completely rolled and taken. Figure 1 shows a preferred embodiment of the present invention. The single-use camera 1 includes a main body section 2, a front cover section 3, and a back cover section. 4. The main body section 2 has a photographic lens 5, a viewfinder window 6, a flash window 7 and a shutter release button 8 on the outer wall, and a required photographing mechanism such as a shutter mechanism and a motor 16 for driving a negative film. A film transfer mechanism and the like. The front cover section 3 is fixed to the main body section 2 by well-known means such as fixing screws. The back cover section 4 is fixed to the main body section 2 by a hinge 9 and can be connected with itself. The main body Shao segment 2 is locked, so the single-use camera 1 is tightly enclosed in a casing with three segments: the main body segment 2, the front cover segment 3, and the back cover segment 4. The casing has a partial opening to expose the photographic lens. 5. Viewfinder window 6, flash window 7, shutter release 8 and the like. Figures 2a and 2b show the inside of the body of the single-use camera 1 with the back cover section 4 opened. On the inside of the main body section 2, there is a film pre-rolling take-up shaft! 〇 and a film magazine 11 to receive -11 arranged on an opposite side of an exposure grid 13-This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) film El2, such as Figure 2a. From the bottom wall of the film cassette chamber 11, another piece 14 is provided. As shown in FIG. 3, this piece 14 can be rotated along with a gear train 15, and the gear train 15 is built in the main body section 2 One of the motors 16 is driven. When the single-use camera 1 is pre-loaded with a new film 18 (which is a 135-size film roll, hereinafter referred to as a film), as shown in FIG. 2 b, the back cover section 4 is opened and a film cassette 12 is placed in the film cassette. Chamber 11, adjust the position of the negative film box 12 until the top of the negative film 1 2 and the joint 14 are joined, and then the tip 17 of the negative film 8 is pulled out of the negative film box 12 and placed on the negative film pre-rolling take-up spool shaft 10 . After the back cover section 4 has been closed and locked, the battery compartment cover 2 1 ′ is opened as shown in FIG. 4, and the battery polarity labels for pre-rolling according to the instructions are shown in FIG. 4 a, FIG. 5, and FIG. 5 a. Put a 5 volt aa battery 2 2 into the battery compartment 19, and close the battery compartment cover 21. As soon as the shutter release button 8 is pressed, as shown in FIG. 6B, the pre-rolled film 18 is immediately started to be driven by the built-in motor 16 and the film 18 is wound around the film pre-rolling take-up reel 10 and the entire film When 18 has been wound on the negative film pre-rolling take-up spool shaft 10, the pre-rolling is stopped. All of the above film pre-rolling steps can be performed in daylight. Before the single-purpose camera 1 is sent out, as shown in Fig. 4a, Fig. 5, Fig. 5b, the battery 22 must be removed and the battery polarities 2 0-b according to the instructions for photographing should be placed in the battery compartment again with different polarities. In the position, the film 18 can be rotated by a motor different from the pre-rolled state and the film running direction is rolled back into the film cassette 12. As described above, in the single-purpose camera 1 of the present invention, after the pre-loading of the negative film has been completed, the rotation direction of the motor needs to be changed from the pre-rolling direction (hereinafter referred to as the pre-rolling mold -12- 507109).

Description of the Invention (Form 10) Switch to the film rewinding direction (the following changes to 泰 ti 9 Φ μ + ”, π phase mode), and this switch can be achieved only by: also reaching the battery position in 19 That is, relative to the battery contact 2 in 1 battery 1: 1 9, 3, /, ρ σ 1 1 ^ 2 5, 2, and change the position of the battery polarity to achieve the switch. Accordingly, as shown in circles 4 and 4a For the battery position in the pre-roll mode and the photographing mode, a polarity mark (+/-) is marked in or beside the battery chamber 19. As a result, the circuit and the film driving mechanism of the single-purpose motor 16 of the present invention are designed The motor 16 can be rotated to drive the negative film i8 in the pre-rolling direction when the battery 22 is placed in the pre-rolling position; or the motor 16 can be rotated to rotate the battery 16 in the photographing direction when the battery 22 is placed in the photographing position ( That is, the negative film runs back to the direction of the negative film box 12) to drive the negative film 18. One of the battery contact portions in the battery compartment 19 is shown in FIG. 4 & The battery contact portion has a recessed area 24 (-hole shaped recessed area), where Two different metal contact portions 25 and 26 are also fixed as shown in Fig. 4b. As shown in Fig. 4b, a metal plate type metal contact portion A 2 5 is arranged behind the recessed area 24, and the other metal The hub-shaped metal contact portion B 26 is disposed on the front edge of the recessed area 24. As shown in FIGS. 4a, 5 and 5b, when the battery is marked according to the photographic polarity mark 2 0 _ b indicated in the battery compartment 19 When the 2 2 is placed in the photographic mode position, only the positive electrode of the battery 2 2 can be in contact with the metal contact portion A 2 5 located behind the recessed area 24. Conversely, as shown in Figs. 4a, 5, and 5a, because The metal contact part B26 is provided at the front edge of the recessed area 2 4 and can only contact the battery 2 when the battery 2 2 is placed in the pre-rolled mode position according to the pre-rolled mode polarity mark 2 0-9 indicated by the battery compartment 1 9 As a result, the motor circuit of the single-use camera 1 of the present invention is designed as follows: -13- This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) 507109 A7 I · B7 _ V. Invention Explanation ^ I) " According to one of the metal contact portions 25 or 26 located on the recessed area 24 of the battery chamber 19, The positive or negative electrode of 22 causes electricity to flow through two different circuits, that is, by turning the battery 22 in the battery chamber 19 upside down, it is possible to switch the circuit from pre-roll motor rotation to camera motor rotation without any change motor. The switch of the rotation direction. Refer to the pre-roll in FIG. 53 and the photo in FIG. 5 ^ FIG. 6a shows a preferred embodiment of the shutter_ratchet control device of the single-purpose camera j of the present invention. a runs in the direction of the arrow. To engage the perforations 28 of the backsheet 18, a ratchet 27 is provided on one end of the ratchet shaft 29, and a ratchet cam 30 is provided on the other end of the ratchet shaft 29. Above the ratchet wheel 27, a ratchet wheel 31 is also provided on the ratchet shaft 29 as a part of the ratchet wheel 27. A cam follower 32 which can follow the periphery of this ratchet cam 30 is located on the upper end of the main wheel shaft of the shutter_ratchet control device. The main wheel shaft 3 is equipped with a main wheel coil spring 5 7 to pull the spring. Guide upward, a shutter setting lever 34 is provided at the lower end of the main wheel shaft 33. When the cam follower lever 32 touches the side periphery of the ratchet cam 30, the ratchet 27 is coupled with the shutter tightening mechanism, and the film 丨8 If you run in the direction of the arrow in Figure 6a, 'Ratchet 2 7 will rotate with the perforation 2 8 in the positive movement of the negative 2 8 and the ratchet 3 0 will also rotate counterclockwise, and then the cam follower 3 2 follows the ratchet 3 The 0-side periphery rotates clockwise and the main axle 33 also rotates clockwise. At the same time, the shutter setting lever 34 also rotates clockwise. A shutter release button 8 is provided above and beside the cam follower 32, and the shutter Under the release button 8, there is a central spring contacting Shao 4 3, this central spring contacting portion 4 3 has been pushing the shutter release button upward, and the tip position of the central spring contacting portion 4 3 can touch the convex -14- This paper size Applicable China Home Standard (CNS) A4 specification (210X297 public love) 507109 A7 __________ B7 _ V. Description of the invention (12) The upper surface of the wheel follower lever 3 2, so when the shutter release button 8 is pressed, the cam follower lever 32 and the shutter-ratchet wheel The main wheel shaft 33 of the control device is also lowered, so that the cam follower lever 32 is separated from the side periphery of the ratchet cam 30. A shutter actuator 37 is provided, thereby coupling the tip 4 1 of the shutter setting lever 34. On one of the cutout grooves 4 2 located on the shutter actuator 37. The shutter actuator 3 7 slides right and left with a guide pin 3 8, and the guide pin 3 8 is located on the shutter actuator 3 7 — The slot-rail 3 9 at the end point is engaged with the slot-rail 3 9. The shutter actuator 37 is equipped with a shutter tension spring 40, which is held by the shutter setting lever 3 4 In the upper tight position blocked by the tip 41, the shutter tightening spring 40 is also blocked by the ratchet cam 30, which can prevent the cam follower 34 and the main wheel shaft 33 from moving. When the cam follower lever 32 When the main axle 33 is no longer blocked by the wheel 30 and becomes free, the shutter setting pattern 3 4 is also free, and the shutter actuator 3 7 immediately goes Towards the shutter 5 2 without any resistance from the shutter setting lever 3 4 tip 41 1. When the shutter release button 8 is pressed, the cam follower lever 3 2 is free from the ratchet cam 30 downward, and because of the main wheel shaft 33 is also free, so the shutter setting lever 34 also rotates counterclockwise freely, and the shutter actuator 37 is immediately turned to the right by the force of the shutter tensioning spring 40. The tip 5 of the shutter actuator 3 collides The head of the shutter blade 5 1 opens the shutter 5 2 and further crosses the shutter blade 51 after the quick release 5 2 is released, so the shutter blade 5 丨 may return to the initial position and close the shutter 5 2. A lever actuator 3 5 coupled with the shutter actuator 37 is provided, and the actuator 35 controls a ratchet switch center contact portion 46. One end 3 5-a of the rod actuator 3 5 leaves through a small rectangular slot_window 5 8, and the slot-window 5 8 is not placed in the running path of the shutter actuator 3 7 tip 5 3 One of the shutters -15- This paper size applies to China National Standard (CNS) A4 specifications (21〇297297 f 507109 A7 B7

Constuction substrate 59. At the other end of the lever actuator 35, a hub-shaped protrusion 3 5-b forms a part of the lever actuator 35, and is pivoted by a pivot 60 to support the lever actuator 35. Both ends of the moving lever actuator 35 are pivoted. After the shutter actuator 37 opens and closes the shutter, the tip 5 3 of the shutter actuator 37 runs to a farther end 3 5-a of the impact lever actuator 35 and stops at this position.

Hold

When the end point 3 5-a moves to the right and is hit by the shutter actuator 37, the tip 5 3, the actuator 35 is rotated counterclockwise, so the protrusion 35-b of the lever actuator 35 is also accompanied by the lever. The actuator 35 is pivoted counterclockwise to move counterclockwise. The position of the protrusions 3 5-b can push the ratchet switch center contact portion 46 when moving counterclockwise, and the ratchet switch center contact portion 46 moves to an on-continent contact portion 48 of the ratchet switch. The ratchet The switch is also provided with an off-COntact 47 of the ratchet switch, as if the ratchet switch center contact 郅 4 6 is embedded in between, and the ratchet switch center contact portion 4 6 is a contact of the ratchet switch. Contact Shao 48 to turn on the ratchet switches (46 and 4 8). Now, as shown in FIG. 6D, the shutter-ratchet control device is in a state where the shutter release surface 8 is still pressed, and the shutter 52 is closed, but not yet tightened by the shutter tension spring 4o. The tip 4 1 of the shutter setting lever 3 4 is engaged with all the openings 4 2, and the cutout groove 42 is located beside the groove-rail 39 on the shutter actuator 37. If the cam follower 32 touches the ratchet cam 30 when the ratchet cam rotates counterclockwise with the ratchet 27, as shown in FIG. 7, the cam follower 32 will rotate clockwise to touch and follow the side periphery of the ratchet cam 30 The figure also shows the sequential and relative movement of the ratchet cam 30 and the cam follower 32. Then the shutter setting lever 3 4 also rotates clockwise ′ and the shutter setting lever 3 4 tip 4 1 pushes the shutter actuator 37 to the left to tighten the shutter tightening spring 4 with a full pulling force, and then tighten the shutter 5 2. When the ratchet cam 3 〇-16- This paper size is applicable to the national standard of the national towel ((^ qing 44 specifications (21 () > < 297 public reply) " "-507109 A7 __________ B7 V. Description of the invention (14 ) When turning counterclockwise, the ratchet wheel 31 also rotates in the same direction, and the corner 4 4 of the ratchet switch center contact part 4 6 touches the periphery of the cylindrical side of the ratchet wheel 3 1, and the corner 4 9 keeps touching and follows The peripheral side of the cylindrical side of the ratchet wheel 31. When the shutter is tightened and the corner 4 of the ratchet switch center contact portion 4 6 enters the groove 50 located on the ratchet wheel 31 and stays therein, the ratchet switch center contact portion 4 6 will The on-contact part 4 8 of the ratchet switch is disengaged and touches the off-contact part 4 7 of the ratchet switch, and the film 18 stops. Part of the switch contact part has a shutter-ratchet control device. Under the shutter release button 8 A center spring contact portion 4 3 is provided, and the center spring contact portion 4 3 always pushes the shutter release button upward. A shutter is provided above the center spring contact portion 4 3 and between the quick release button wheel shaft and the cam follower lever 3 2 The release switch turns on the contact portion 4 4 unless the shutter release button 8 is pressed Otherwise, the shutter-release switch-on contact portion 4 4 always touches the center spring contact portion 43. On the opposite side of the shutter-release switch-on contact portion 4 4 and between the shutter release button wheel shaft and the cam follower lever 32 There is a preroll switch on contact portion 45, and unless the shutter release button 8 is pressed, the preroll switch on contact portion 4 5 will not touch the center spring contact portion 4 3. The shutter release switch on contact portion 4 4 and The positioning of the preroll switch on-contact portion 4 5 is like sandwiching the center spring contact portion 43 between them. If the shutter release button 8 is pressed, the preroll switch 4 5 will be turned on and whenever the shutter release button 8 is not affected. When pressed, the shutter release switch 4 4 is always turned on. As described above, two switch contact portions for inserting and clamping the ratchet switch center contact portion 46 are also provided: one of which is the non-closed contact portion 4 7 of the ratchet switch. The other is the contact part 48 of the ratchet switch. And the circuit is designed to ... No matter where it is built in the shutter / ratchet control device -17- This paper size applies to China National Standard (CNS) A4 specifications ( 210X 297 mm) loaded

Line 507109 A7 ________B7 V. Description of the invention (15 ~ " There are switches (ie shutter release switch, ratchet switch and pre-roll switch) in the on / off position. When the battery 2 2 is placed in the pre-roll as shown in Figure 4 a In mode and the shutter release button 8 is not pressed, the motor 16 is stopped, please refer to Fig. 5a. After the film 18 has been pre-loaded as described above, the shutter release button 8 should release the pressing finger from the shutter release button 8. Return to the initial position, and the main wheel shaft 3 of the shutter ratchet control device also returns to the initial position by the spring tension of the main wheel coil spring 5 7. Figure 6c shows the shutter-ratchet control device in the following state: the shutter release button 8 has been Return to the initial position but the shutter is not yet tightened; the main wheel shaft 3 of the shutter_ ratchet control device has been moved back up; the pre-roll switch is not turned on; the shutter release switch is turned on; and the ratchet switch is turned on; but the battery 2 2 is still in the pre-roll mode in the battery compartment 19. Because the battery 22 is still in the pre-roll mode, the motor 16 is stopped, and the pre-roll switch 45 is not turned on, please refer to Figure 5a. Now the single-purpose camera 1 must be entered In the phase mode, the battery 22 must be removed and the polarity indicated by the photographing mode as shown in FIG. 4 a must be placed in the battery compartment 19 at different polar positions to change the single-purpose camera 1 from the pre-roll mode to the photographing mode. As shown in Figure 6c and Figure 5a, the shutter release switch and ratchet open relationship are on and the shutter release button 8 is in the initial position (up position). Once the battery position has been changed from the preroll mode to the photographing mode, as shown in Figure As shown in 5c, power will flow through the shutter release switch and ratchet switch and the motor 16 starts to rotate, while the negative 18 starts to move in the direction of the arrow in FIG. 66, and the ratchet 27 and the ratchet cam 39 are rotated counterclockwise with the moving negative. Then, when the cam follower 32 starts to rotate clockwise to follow the side periphery of the ratchet cam 30 that rotates counterclockwise with the ratchet 27, the main wheel shaft 33 of the shutter-ratchet control device rotates clockwise. At the same time, the shutter Setting button "Start clockwise-18-

A7 B7 V. Description of the invention (16) The needle is rotated 'and the shutter setting lever 3 4 pulls the shutter actuator 3 7 back to the initial position', where the shutter actuator 3 7 is in phase with the fully tightened shutter tension spring 4 0 The shutter setting lever 3 4 and the tip 41 are locked and held by the slit groove 4 2 of the shutter actuator 37. While the shutter actuator 37 starts to move clockwise, the 'rod actuator 35' is free from the shutter actuator 37 and rotates clockwise as shown in FIG. 6e. Then, the protrusion 35b stops pushing the ratchet switch center contacting Shao 46 and itself is disengaged from the ratchet switch center contacting Shao 46, and the ratchet switch center contacting Shao 4 touches the corner 4 with its own spring tension The ratchet wheel 31 of 9 has a cylindrical side periphery and the corner 4 9 keeps touching the side periphery of the cylindrical ratchet disk 31 while the ratchet disk 31 rotates together with the rotation of the ratchet 27 until the corner 4 9 falls in The groove 50 on the periphery of the cylindrical side of the ratchet disc 31 is in the middle. Once the corner 49 of the ratchet switch center contact portion 4 6 falls into the groove 50 located on the cylindrical side periphery of the ratchet disk 3 1, the entire ratchet switch center contact portion 4 6 immediately moves to the ratchet wheel shaft 29, and the ratchet switch The center contact portion 46 will disengage from the on-contact portion of the ratchet switch 48 and stop on the un-contact portion of the ratchet switch 47 and the motor 16 will stop. The travel distance of the ratchet wheel 2 7 from start to stop (that is, a full rotation of the ratchet wheel) is designed to precisely match the travel distance of one grid of the negative plate 18 (8 ratchet teeth rotation). When a grid film is stopped after the ratchet 27 is stopped, one of the new film 18 has been pulled out of the film pre-rolling take-up spool 18 and the unexposed frame is located on the film pre-rolling take-up spool 10 and the film cassette 1 2 Behind the exposure frames 1 3, the single-purpose camera 1 is now ready for transport and photography. Negative film pre-rolling and electricity have been completed in the above-mentioned photographing mode as shown in Figs. 4a and 5b. -19-

Binding

Line This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) A7 B7

507109 V. Description of the invention (17. Cell 2 2 has been placed in the battery compartment 1 9. A new unexposed frame (the first frame of the unexposed film) is attached to the film pre-roller. It is located behind the exposure grid 13 and closes the shutter. Therefore, when the single-use camera 1 of the present invention leaves the production line, the shutter-ratchet control device is in the following state ... The shutter 5 2 is tightened, The first unexposed grid is located behind the exposed grid 13, the shutter release switches (43 and 44) are turned on, and the ratchet switch is turned off (46 and 47), as shown in Figures 6a and 5b. In Figure 6a In the state of the shutter-ratchet control device shown, when the shutter-release button 8 is pressed, the cam follower 32 will move downward from the ratchet cam 30, the main wheel shaft 33 is also free, and the shutter setting lever 34 is also free. Turn it counterclockwise and immediately use the force of the shutter tensioning spring 40 to make the shutter actuator 37 to the right. The tip 5 3 of the shutter actuator hits the head of the shutter blade 51 to open the shutter 5 2 and After the shutter 52 is released, it further crosses the head of the shutter blade 51, so that the shutter blade 51 can be returned. The initial position closes the shutter 5 2. A lever actuator 3 5 coupled with the shutter actuator 3 7 is provided, and this lever actuator 3 5 controls a ratchet switch center contact Shao 4 6. The lever actuator 3 An end point 3 5-a of 5 exits through a small rectangular slot-window 5 8, which is located on one of the shutter mechanism bases 59 of the operating path of the shutter actuator 3 7 tip 5 3. At the other end of the lever actuator 35, a hub-shaped projection 35a forms part of the lever actuator 35, and the lever actuator 35 is supported and pivoted by a pivot axis 60. Both ends of the lever actuator 35 are pivoted. After the shutter actuator 37 opens and closes, the tip 5 3 of the shutter actuator 37 runs to hit the lever actuator further away. End point 3 5-a of 3 5 and stop at this position. When end point 3 5-a moves to the right and is hit by the shutter actuator 3 7 tip 5 3: 297 mm)

Η

-20- 5. Description of the invention (18), the lever actuator 35 rotates counterclockwise, so the protrusion 35 of the lever actuator rotates counterclockwise and accompanies the pivot of the lever actuator 35 in the counterclockwise direction. The protrusion 35-b can be positioned to push the ratchet switch center to contact Shao 46 when moving counterclockwise, and the ratchet switch center contact portion 46 is moved to an on-contact portion 48 of the ratchet switch. The ratchet switch is also provided with a ratchet switch. An unconnected contact portion 47 is like a ratchet switch center contact portion 46 sandwiched therebetween, and the ratchet switch center contact portion 46 touches the ratchet switch's contact portion "to turn on the ratchet switch (46 and 4 8). Now, the ratchet switches (46 and 48) are turned on, but as mentioned above, the shutter release switches (43 and 44) are not turned on, because the shutter release button 8 is still pressed as shown in the figure, so the preroll switch and the The "center contact portion of the shutter" is kept separate from the shutter release switch-on contact portion 4 4. Now that the shutter 52 has been released, the next unexposed negative frame 18 must be placed. 18 'When the pressed finger is released from the shutter ... Release switches ⑷ and 44) are immediately turned on so that the preroll switch and the central contact portion of the shutter ⑴ touch the shutter release switch to contact 44. Because the ratchet switches (46 and 48) have been turned on, as shown in Figure 5c Power flows through the quick release switch and ratchet switch, and the motor starts to rotate. The film 18 starts to move in the direction shown by the arrow in FIG. 6e, and the ratchet heart and the ratchet cam 39 rotate counterclockwise with the moving film. Then, When the cam follower lever 32 starts to rotate clockwise, the main wheel shaft 33 of the fast ratchet control device rotates clockwise, thereby following the side periphery of the cam 30 which rotates counterclockwise with the ratchet wheel at the same time. The setting sample 34 starts to rotate clockwise, and the shutter is set to this paper size. The national standard (CNi7I4 specification (21Gχ -21-507109 A7 B7) V. Description of the invention (19) Talent 3 4 Pull the shutter actuator 3 7 back to the original Position, in which the shutter actuator 3 7 is locked with the fully tightened shutter tension spring 4 0 and is subject to the tip 4 1 of the shutter setting lever 3 4 which is engaged with the notch groove 4 2 of the shutter actuator 3 7 While the shutter actuator 37 starts to move clockwise, the lever actuator 35 is separated from the shutter actuator 37 and rotated clockwise as shown in FIG. 6e. Then, the projection 3 5- b Stop pushing the ratchet switch center contact portion 4 6 and it is separated from the ratchet switch center contact portion 4 6, and the ratchet switch center contact portion 4 6 touches the ratchet disc 3 by its own spring tension at the angle 4 9 The peripheral side of the cylindrical side, and the corner 4 9 keeps touching the peripheral side of the cylindrical side of the ratchet wheel 31, while the ratchet wheel 31 rotates together with the rotation of the ratchet wheel 27 until the corner 49 falls into the cylinder of the ratchet wheel 3 1 To the groove on the perimeter of the shape side. The angle of the ratchet switch center contact Shao 4 6 4 9 Into the groove 50 located on the peripheral side of the cylindrical side of the ratchet wheel 3 1, the entire ratchet switch center contact portion 4 6 1 is moved to the ratchet wheel shaft 2 9, and the ratchet switch center contact portion 4 6 will be separated from the ratchet switch 4 8 The contact part is turned on and stopped at the non-contact part of the ratchet switch 47, and the motor 16 is stopped. As described above, the travel distance of the ratchet wheel 27 from start to stop (that is, a full rotation of the ratchet wheel) It has been designed to accurately match the private distance of a frame of the negative 18 (rotation of 8 ratchet teeth). When a negative frame is stopped after a negative frame has been run, the negative pre-rolling take-up tube has been pulled out A new negative 18 frame outside the axis is located behind the exposed frame 13 between the negative pre-rolling take-up tube shaft 10 and the negative 12. Now the 'shutter-ratchet control device has returned to the shutter tightening figure 6 · a's rule of resentment' a new unexposed frame film 丨 8 series located in the exposure frame 丨 3 -22- paper scale suitable for financial secrets Standard (CNS) City Grid (21〇 ^^-5. Description of the invention (20), and the single-purpose camera is ready for the next photo. As described by the party so far, the single-purpose camera of the present invention ”, By the shutter _ button 8 caused by the up and down movement of the shutter _ ratchet control device of the main wheel shaft 33 up and down to control almost all the necessary procedures for this operation, such as the ratchet 27 and the shutter tightening and release mechanism to maintain Freely roll the film ^ to pre-roll; couple the ratchet wheel 27 with the shutter tightening and release mechanism and rotate the picture with the moving film perforation 28; turn all the switches on and off to control the motor 16. See Figure 6a As shown, an exposure counting gear 54 is provided which is engaged with a counting gear driving pawl 55, and this exposure counting gear 54 forms a part of the ratchet cam 30. As described above, one complete rotation of the ratchet 27 will roll up the negative film Unary box of 18, and The number gear driving claw 55 is designed to advance the exposure counting gear 54 by one tooth each time the ratchet cam and the ratchet 27 are rotated completely. The number of teeth of the exposure counting gear 54 is designed to be equal to the number of exposures of the film is, and from 1 to, for example, 2 7 (If there are 27 exposures) and other final exposure numbers are printed on the outer edge of the upper surface of the exposure counting gear 54. Each exposure number corresponds to one tooth of the exposure counting gear 54, so the number when the first grid is exposed 丨Will appear on the indicator, and the exposure can be counted in this way until the last frame is exposed. The number appears on the indicator. After the last frame has been exposed, all exposed negatives 18 frames have been rolled back In the film cassette 12 and if the motor 16 is still running after the end of the film is removed from the film pre-rolling take-up spool shaft 10, the film will be completely rolled back into the film cassette 12 'but the motor 16 has not stopped. To prevent such unwanted motors from running after all the negatives 18 have been returned to the negative film case 12, such as 507109 A7 B7 V. Description of the invention (21) As shown in Figure 6, the upper edge of the exposure frame 1 3 There is a negative film sensor switch 56 °. When the negative film is running between the negative film pre-rolling take-up shaft 10 and the negative film box 12, the negative film sensor switch 5 6 is pressed by the negative film 8 and the negative film sensor switch 5 6 When it is pressed by the negative 18, it will be kept on to make the motor 16 run. When the last end of the negative 18 is separated from the negative pre-rolling take-up spool shaft 1 and passed through the exposure frame 1 3 and the negative sensor 5 When 6 is above, the film sensor switch is no longer pressed by the film and is disengaged and turned off by the spring force to stop the motor 16. Therefore, when the last end of the film 18 passes the film sensor switch 56, the motor 16 stops. -24- This paper size applies Chinese National Standard (CNS) A4 (210X 297mm) 507109 A7 B7 V. Description of the invention (22) Component table 1. Single-use camera 2. Main body section 3. Front cover section 4 Back cover section 5. Photo lens 6. Viewfinder window 7. Flash window 8. Shutter release button 9. Hinge 10. Negative film pre-rolling take-up shaft 11. Negative film compartment 12. Negative film case 13. Exposure frame 14. Fork Section 15. Gear train 16. Motor 17. Negative plate 1 8 Tip 18. Negative plate 19. Battery compartment 20-a. Battery polarity mark 20-b. Battery polarity mark 2 1. Battery compartment cover 22. Battery-25- This paper is sized for China National Standard (CNS) A4 (210 x 297 mm) 507109 A7 B7 V. Description of the invention (23) 23. Metal plate spring contact 24. Recessed area 25. Metal contact A 26. Metal contact B 27. Ratchet 28. Perforation 29. Ratchet fortunately 30. Ratchet cam 3 1. Ratchet wheel 32. Cam follower lever 33. Main wheel shaft 34. Shutter setting lever 3 5. Lever actuator 35-a. Lever actuator 3 5 End point 3 5-b. Protrusion 36. Shutter release Knob spring 37. Shutter actuator 3 8. Guide pin 39. Slot-rail 40. Shutter tightening spring 4 1. Tip of shutter setting lever 3 4 42. Notch groove 43. Pre-roll switch and central contact portion of shutter 44. Shutter release switch contacts • 26-This paper size applies Chinese National Standard (CNS) A4 (210 x 297 mm) 507109 A7 B7 V. Description of the invention (24) 45. Preroll switch contacts 46. Center contact part of ratchet switch 47. Switch 48. Contact contact part of ratchet switch 49. Angle 50. Set Groove 5 on ratchet wheel 31 1. Head of shutter blade 52. Shutter 53. Tip of shutter actuator 54. Exposure counting gear 5 5. Counting gear driving claw 56. Negative film sensing switch 57. Main wheel shaft Coil spring 5 8. Small rectangular slot window 59. Shutter mechanism base 60. Pivot -27- This paper size applies to China National Standard (CNS) A4 (210 x 297 mm)

Claims (1)

507109 A8 B8 C8 D8 ______-—-VI. Patent Application Private Park 1. A single-use camera with a motor to transfer negatives and containing: a light-tight enclosure with an exposure aperture through which the exposure Aperture produces exposure; an unexposed negative film is wound tightly around a pre-rolled take-up spool shaft located on one side of the exposure aperture; a removable film cassette with a negative film take-up spool, the negative film The take-up shaft is arranged on the opposite side of the exposure aperture in the light-tight casing from the pre-rolled take-up shaft, and one end of the unexposed film is attached to the film-receiving shaft; a motor, It allows the pre-rolling take-up spool to rotate to unroll the unexposed negatives taken out of the film cassette, and allows the film take-up spool to rotate to unwind the unexposed negatives after each exposure. To the film cassette and the periphery of the film receiving shaft; and a device for prerolling the film or winding the film to change the rotation direction of the motor after each exposure, the device includes: a Wheel, which is to be driven by the movement of the backsheet to Controls - tightening the shutter member; and a control rafters ratchet member, so that the ratchet which the tightening member and the shutter. Free-form, or the ratchet is coupled to the shutter tightening member. 2 · For a single-use camera in the scope of application for patent item i, in which a battery compartment is provided to provide three battery contact parts for a battery ^ A bag can be selected for one of the three contact parts for a battery ^, So the rotation direction of the motor is reversed.啕 -28 · 507109 A BCD VI. Scope of Patent Application 3 * As for the single-use camera in the scope of patent application item 1, the ratchet # system is driven by the movement of a shutter release boat. 4. The single-use camera according to item 3 of the patent application scope, wherein the ratchet system and the shutter tightening member are free-form and can rotate in a direction that the film is pre-rolled when the shutter release button is pressed. 5. The single-use camera according to item 3 of the patent application, wherein the ratchet system is combined with the shutter tightening member. When the shutter release button is not pressed, the film can only be rolled back in one direction in the film cassette. Medium rotation. 6. The single-use camera according to item 1 of the patent application scope, wherein the light-tight housing includes a main body section and a back cover section, and the main body section has a shutter member, and the back cover section can be opened to place the film on the negative. The film cassette is removed after having been fully exposed, and the two sections become a unit having a hinge and a locking / unlocking member. 7. The single-use camera according to item 1 of the patent application scope, wherein the removable film cassette is a 135-size film cassette and has a spool, and one end of the film is attached to the spool. -29- This paper size applies to China National Standard (CNS) A4 (210X cents)