JPH07270877A - Camera - Google Patents

Abstract

PURPOSE:To make a camera small in size and low in cost by using the drive of a photographic lens barrel and enabling an inexpensive and compact positioning member to divide the driving power of a motor other than a lens- barrel-driving motor. CONSTITUTION:This camera is provided with the positioning member constituting parts of power-dividing means 25-27 for dividing the driving power of a motor 4 other than the lens-barrel-driving motor 5 and determining the driving power dividing destination according to the driving position of the photographic lens barrel 2. A planetary gear mechanism is positioned by using the positioning member linked with the photographic lens barrel, and the driving power of the motor other than the lens-barrel-driving motor 5 is divided into the drive for feeding a film and the drive for opening/closing a cartridge chamber cover, for example.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a camera having a lens barrel driving motor for driving a taking lens barrel.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 21, most of the time when a film cartridge is loaded into a camera, a back cover 101 is opened rearward from a camera body 102, and a film is placed in a cartridge chamber 103 appearing in the opening. Cartridge 10
4 was a method of loading. However, in this method, when the back cover 101 is opened, even the complicated mechanism inside the camera is shown to the camera user, and this makes the person unfamiliar with the camera anxious. Furthermore, since the loading of film cartridges differs slightly for each camera, loading becomes complicated, and the camera and film cartridge must be changed over and over, resulting in failure to load the film cartridge or loading by the camera user. It was annoying.

Therefore, in recent years, a camera having a film cartridge loading structure as shown in FIG. 22 has been proposed.

This camera has a cartridge chamber lid 201 that slides and opens and closes inside the camera and a motor 202 that is a drive source for the cartridge chamber lid. If the film cartridge 203 is inserted into the cartridge chamber lid 201 as shown in the drawing,
The film cartridge 203 is automatically drawn into the cartridge chamber 206 by the driving roller 204 provided in the camera and the motor 205, which is the driving source thereof, so that the film cartridge 203 can be completely loaded without using the force of a human hand. It is a thing. On the contrary, when taking out the film cartridge 203, first, the motor 202 is driven to open the cartridge chamber cover 201, and then the motor 205, the driving roller 204 and the like are used to drive the film cartridge 20.
The structure is such that 3 is sent to a position where it is easy to take out.

According to the camera having the above-mentioned structure, the internal mechanism has a small portion which the user of the camera can see, as compared with the conventional loading method, and the loading method is extremely simple.
Even a camera beginner can safely load it.

[0006]

However, as shown in FIG.
In the case of a camera having a film cartridge loading structure such as that shown in (1), the following new problems are caused by electrically transporting the cartridge chamber lid 201 and the film cartridge 203.

1) When the cartridge chamber lid 201 and the film cartridge 203 are equipped with respective dedicated motors for driving, it is necessary to provide respective reduction gear trains in addition to the dedicated motors, and the overall mechanism becomes large. .

2) As described above, the cartridge chamber lid 201 and the film cartridge 203 are provided with the motors dedicated to driving and the respective reduction gear trains, which leads to an increase in the cost of the camera.

(Object of the Invention) A first object of the present invention is to utilize the driving of the taking lens barrel to divide the power of motors other than the lens barrel driving motor by an inexpensive and small positioning member. It is to provide a camera that can.

A second object of the present invention is to provide a camera capable of dividing the power of a lens barrel driving motor without using a dedicated member.

A third object of the present invention is to downsize the camera,
An object of the present invention is to provide a camera capable of easily and reliably carrying a film cartridge and opening / closing a cartridge chamber cover while achieving cost reduction.

A fourth object of the present invention is to provide a camera capable of dividing the power of motors other than the lens barrel drive motor without increasing the size of the camera and without the user's appearance. Is to provide.

[0013]

In order to achieve the first object, the present invention according to claim 1 comprises a part of power splitting means for splitting power from a motor other than a lens barrel driving motor. A planetary gear mechanism (the planetary gear mechanism and the positioning member) using a positioning member that determines the power split destination according to the driving position of the photographing lens barrel, and uses a positioning member that interlocks with the movement of the photographing lens barrel. The power of motors other than the lens barrel drive motor is divided into, for example, film feed drive and cartridge chamber lid open / close drive.

In order to achieve the above-mentioned second object, the present invention according to claim 3 is to drive the power of the lens barrel driving motor to a driving member other than the driving of the taking lens barrel to the cartridge chamber lid. A power splitting means for switching using movement is provided, and when the cartridge chamber lid is moved, the power split destination of the lens barrel driving motor is switched so that power is transmitted to a driving member other than the driving of the taking lens barrel. ing.

In order to achieve the third object, the present invention according to claim 5 uses a positioning member which forms a part of the means for switching the power split destination according to the driving position of the taking lens barrel. The power from a motor other than the lens barrel driving motor is divided into a film feeding drive and a cartridge chamber lid opening / closing drive, and the power of the lens barrel driving motor is converted into the photographing lens lens barrel. Drive and film cartridge transport drive are switched by utilizing the movement of the cartridge chamber lid, the first power splitting means for detecting the position of the cartridge chamber lid, and the position of the film cartridge. When the second detection means, the film cartridge automatic loading means, and the automatic loading start instruction are given by the film cartridge automatic loading means, the first and second
And a control means for controlling each of the motors based on the detection signal of the detection means, and when the automatic loading start instruction is given by the film cartridge automatic loading means, based on the position information of each of the cartridge chamber lid and the film cartridge, The motors used to drive the film feeding and open / close the cartridge chamber lid, and the motors used to drive the photographic lens barrel and drive the film cartridge are controlled.

In order to achieve the fourth object, according to the present invention of claim 6, in the non-photographing position of the photographing lens barrel, the power of a motor other than the lens barrel driving motor is changed to a film feeding drive. A power splitting means for splitting the opening / closing drive of the cartridge chamber cover is provided, and the invention according to claim 7 is such that the positioning member makes the power split destination switchable to the non-shooting position of the taking lens barrel. The second position for disabling the switching of the power split destination and the power split destination is provided, and the power of the motor other than the lens barrel driving motor is split at the non-shooting position of the shooting lens barrel which has not been used until now. I'm trying to do.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the illustrated embodiments.

FIG. 1 is a perspective view showing a mechanical structure of a main part of a camera according to an embodiment of the present invention. In FIG. 1, 1 is a camera body, 1a is a cartridge insertion slot, and 1b is a cartridge insertion slot.
Is a cartridge chamber, 2 is a taking lens barrel, 3 is a cartridge chamber lid that slides in the camera to open and close the cartridge chamber 1b, and 4 is a first film feeding drive and a first opening / closing drive of the cartridge chamber lid. A motor 5 is a second motor used for driving the photographing lens barrel 2 and for driving (pulling in and sending out) the film cartridge. Reference numeral 6 denotes a conical dependent roller rotatably attached to the camera body 1 for carrying the film cartridge. Reference numeral 7 is a drive roller for transporting the film cartridge, which has the same conical shape as that of the roller 6 (described later in FIG. 5), and 8 is a microcomputer for controlling various operations of the camera.

In this embodiment, a film cartridge of the type shown in US Pat. No. 4,887,112, in which the film is completely wound in a film unused state, is used. And
In a camera using this film cartridge, when the film cartridge is loaded into the camera, the spool in the film cartridge is driven in the film feeding direction to slide the leading end of the film between the aperture in the camera and the pressure plate, and then the film is When the film is wound around the film take-up spool on the camera side, the spool drive in the film cartridge is switched to the film take-up spool drive on the camera side, and the film idling (autoloading) is completed.

FIG. 2 is a perspective view showing a film feeding mechanism provided in the camera of FIG. 1, and FIG. 3 is an exploded perspective view showing a detailed structure of a part thereof.

In FIG. 2, reference numeral 4 denotes the first motor also shown in FIG. 1, which is a drive source for driving the film feeding and opening and closing the cartridge chamber cover 3 shown in FIG.
Reference numeral 11 is a pinion gear provided at the shaft end of the first motor 4, 12 is a reduction gear that meshes with the pinion gear 11, 13 is a reduction gear that meshes with the reduction gear 12, 14
Is a sun gear that meshes with the reduction gear 13.

2 and 3, reference numeral 15 is a planetary gear having a one-way gear 20 described later as a partner, 15a is a spring for generating a friction force, and 15b is the planetary gear 15 described above.
, 16 is a planetary gear having a later-described one-way gear 19 and a transmission gear 18 as its counterparts, 16a is a spring for generating a friction force, 16b is a rotation shaft of the planetary gear 16,
Reference numeral 17 denotes a planetary plate for holding the planetary gears 15 and 16,
Reference numeral 17a is a planetary plate stopper when the film is wound, 17b is a planetary plate stopper when the film is rewound, and 18 is a planetary gear 1.
6 is a transmission gear that meshes with 6 during film winding.

A film winding spool 9 has an internal gear 9a and is meshed with the transmission gear 18. 10 is a friction band made of an elastic member wound on the surface of the film take-up spool 9, 19 is a one-way gear integrated with the rotating shaft 23, and meshes with the planetary gear 16 when the film is rewound. . 20 is a rotary shaft 23
With a one-way gear that is freely rotatable around
It is adapted to mesh with the planetary gear 15 when the film is wound, and as shown in FIG. 3, it is provided with a gear member 20a and a table 20b and an engaging portion 20c on the end face. A one-way plate 55 is integrally fitted to the rotary shaft 23, and holds steel balls 56 on three sides. Reference numeral 21 denotes a one-way cover, which is rotatably fitted around a rotary shaft 23, and a groove portion 21a provided at an end portion of the one-way cover 21 and an engaging portion 20c of the one-way gear 20 are engaged with each other to form an integral body. Has become.

From the one-way gear 19 to the rotary shaft 23
And the one-way clutch mechanism including the one-way plate 55 and the steel ball 56, the one-way gear 19 and the one-way gear 20 are rotating (clockwise) in the direction of the solid line in FIG. When the number of rotations per unit time exceeds the one-way gear 20, the steel ball 56 retracts into the recess of the one-way plate 55, so that the one-way gears 19 and 20 can integrally rotate, that is, the clutch can be released. It is like this. On the contrary, when the steel ball 56 is rotating (counterclockwise) in the direction of the broken line arrow in FIG. 3 and the number of rotations of the one-way 20 per unit time exceeds that of the one-way gear 19, the steel ball 56 moves toward the one-way plate 55. By retracting into the recess, the one-way gears 19 and 20 can be integrally rotated.

Referring again to FIG. 2, 24 is a transmission gear that meshes with the transmission gear 22, 25 is a sun gear that meshes with the transmission gear 24, 26 is a planet gear that rotates around the sun gear 25, and 27 is the planet. It is a planetary plate that holds the gear 26 at its end. Reference numeral 28 is a planetary gear shaft having a positioning protrusion 28a at its end, and a spring (not shown) is provided on the outer periphery of the shaft. The spring generates a friction force between the planetary gear 26 and the planetary plate 27. I am letting you. 27a is a planetary plate 2 when the cartridge chamber cover 3 of the planetary gear 26 is driven.
7 is a stopper for positioning, and 27b is the planetary gear 26
, 29 is a stopper for positioning the planetary plate 27 at the time of film feeding, 29 is a film feeding transmission gear which meshes with the planetary gear 26 at the time of film feeding, 30 is a transmission gear which meshes with the film feeding transmission gear 29, 31 Is a driver gear having a gear portion 31b that meshes with the transmission gear 30 and an engaging portion 31a that engages with a spool in a fill cartridge (not shown).

Reference numeral 32 is a stopper for regulating the position of the planetary gear 26, and a friction spring 33 is provided between a camera body (not shown) and a stopper flange portion 32b, and the stopper 32 is always a taking lens barrel. The structure is such that it is pressed against the surface of the photographing lens barrel 2 and enters into the above-mentioned positioning projection 28a or retreats below according to the rotation of the taking lens barrel 2. Reference numeral 32a denotes a stopper blade which, together with the positioning stopper 27a or 27b for positioning the planetary plate 27, blocks the rotational movement of the planetary gear 26 about the sun gear 25, and drives the film feeding position and the cartridge chamber lid 3 (not shown). The planetary gears 26 can be held (switching the power split destination) at each of the two positions.

Reference numeral 2a is a groove portion provided on the surface of the taking lens barrel 2 and rotating about the optical axis. The stopper blade 32a of the stopper 32 is a planet except when the groove portion 2a is directly below the stopper 32. Protrusion 28a for positioning shaft 28
As it comes above, the planetary gear 26 is the sun gear 25.
It becomes impossible to rotate around the center.

The main parts of the film feeding mechanism including the power splitting mechanism for switching the power of the first motor 4 to drive to the cartridge chamber lid 3 as described later, which are provided in the camera of this embodiment, That is the main movement.

FIG. 4 is a perspective view showing a cartridge carrying mechanism for pulling the film cartridge into the cartridge chamber 1b and sending it out of the cartridge chamber 1b, and an opening / closing mechanism for the cartridge chamber lid 3, and FIG. It is an exploded perspective view showing some detailed structures.

In FIG. 4, 44 is an automatic cartridge loading switch, which is connected to the microcomputer 8 shown in FIG. Reference numeral 5 denotes a second motor also shown in FIG. 1, which is a drive source for driving the taking lens barrel 2 (not shown in FIG. 4) and for pulling in and feeding out the film cartridge as described above. Reference numeral 5a is a pinion gear provided at the tip of the second motor 5, and the sun gear 37 is provided from the pinion gear 5a via a reduction gear train (not shown).
The power is transmitted (in the direction of the dashed arrow in FIG. 4).

FIG. 5 is an exploded view of a part of the power split mechanism for switching the power split destination of the second motor 5 between the photographing lens barrel 2 side and the cartridge carrying mechanism side.

In FIG. 5, 41 is a rotary shaft that holds the sun gear 37 rotatably, 38 is a planet gear that meshes with the sun gear 37 and can revolve around the sun gear 37, and 42 is the planet gear. A planetary plate rotatably holding the planetary gear 38 around a rotation shaft 50, and a wave washer 49 for generating a frictional force between the planetary plate 42 and the planetary gear 38. Reference numeral 40 is a power transmission gear that engages with the two-way engagement portion 41a of the rotary shaft 41 and rotates integrally. Reference numeral 7 denotes a conical drive roller for transporting the film cartridge, which is made of the elastic member described in FIG. 1 and partially exposed in the cartridge chamber 1b. You can do it.

Referring again to FIG. 4, reference numeral 39 denotes a speed increasing gear, which comprises a gear portion 39a meshed with the planetary gear 38 and a transmission gear 40 and a gear portion 39b always meshed with the transmission gear 40. Reference numeral 3 denotes the cartridge chamber lid already described in FIG. 1, which includes the rack portion 3a, the cartridge chamber lid closing end surface 3b, the cartridge chamber lid opening end surface 3c, and the stoppers 3d and 3e for regulating the position of the planetary plate 42. is doing. 43
Reference numerals a and 43b are stoppers for restricting the position of the planetary plate 42, which are provided in a camera body (not shown), and prevent the planetary gears 38 from biting the respective power transmission side gears (39, 2b). At the same time, the gear shafts are guaranteed.

When the drive roller 7 is driven, the planet plate 42 is sandwiched between the planet gear escape prevention stopper 3d and the bite prevention stopper 43b as shown in FIG. Gear portion 3 of the speed increasing gear 39
It engages with 9a and can rotate both forward and backward.
When the photographing lens barrel 2 is rotationally driven, the planetary plate 42 is sandwiched between the planet gear escape prevention stopper 3e and the bite prevention stopper 43a. At this time, the planet gear 38 is attached to the photographing lens barrel 2. Meshes with the drive gear 2b,
Moreover, it can be rotated forward and backward.

In FIG. 4, the sun gear 25, which is one of the components of the film feeding mechanism shown in FIG. 2, serves as a power splitting function portion for splitting the power of the first motor 4.
The planetary gear 26 is regulated by the stopper blade 32a and the positioning protrusion 28a, and is held at the meshing position of the cartridge chamber lid driving transmission gear 34. At this time, the stopper 27a functions as a stopper for preventing the planetary gear 26 from biting the transmission gear 34, and the stopper blade 32a functions as a stopper for preventing the planetary gear 26 from escaping.

Reference numeral 35 is a connecting shaft for connecting the power of the transmission gear 34 transmitted from the first motor 4 to the cartridge chamber lid 3, and 36 is a cartridge chamber lid driving gear integrally provided on the connecting shaft 35. , Always meshes with the rack 3a of the cartridge chamber lid 3. Accordingly, the cartridge chamber lid 3 is opened and closed with respect to the cartridge chamber 1b by the forward and reverse rotation of the cartridge chamber lid driving gear 36, and the cartridge chamber lid closing completion detection switch 45 is brought into contact with the cartridge chamber lid closed end surface 3b. The closing of the cartridge chamber lid 3 is completed, and the opening of the cartridge chamber lid 3 is completed by bringing the cartridge chamber lid opening completion detection switch 46 into contact with the cartridge chamber lid opening end surface 3c.

Reference numeral 47 is a film cartridge entry / exit switch for detecting the insertion (entry) or delivery of the film cartridge into the cartridge chamber 1b, and 48 is the film cartridge entry chamber 1b.
This is a cartridge loading completion detection switch that is turned on when the cartridge is completely pulled in. Further, 6 is a subordinate roller for pulling in and feeding out the film cartridge as already described in FIG. 1, which is freely rotatable and has no power.

Here, a film cartridge (not shown)
Is inserted into the cartridge insertion opening 1a, the cartridge entry / delivery detection switch 47 is pressed by the film cartridge and turned on. Then, the second motor 5 is immediately driven by the microcomputer 8 shown in FIG. 1, and this power is transmitted to the drive roller 7 via the reduction gear train (not shown), the sun gear 27, and the planetary gear 38, and the film cartridge. Are nipped between the drive roller 7 and the dependent roller 6, and are drawn into the cartridge chamber 1b by the power of the drive roller 7. Then, at the same time when the spool in the film cartridge is fitted into the driver engagement portion 31a, the end surface of the film cartridge presses the cartridge loading completion detection switch 48 to turn it on, so that the drive of the drive roller 7 is stopped. The pull-in drive ends.

The above is the main parts of the film cartridge carrying (pulling in and sending out) mechanism and the opening / closing mechanism of the cartridge chamber lid 3 provided in the camera of this embodiment, and the main movements thereof.

FIG. 6 is a view for explaining the structure of the taking lens barrel 2 of the camera in this embodiment.
FIG. 6A is an exploded perspective view showing a schematic configuration of the taking lens barrel 2, and FIG. 6B is a development view showing the inside of the cam barrel.

In FIG. 6 (a), reference numeral 2'denotes a cam barrel rotatably fitted to the outermost peripheral portion of the taking lens barrel 2, and has the groove portion 2a and the gear portion 2b on the outer surface thereof. Flexible printed circuit board 53 for detecting the position of the cam barrel 2 '
And a brush switch 54, and as shown in FIG. 6B, there is a cam surface 2c having a cam groove 2d therein.

On the flexible printed circuit board 53 for detecting the cam cylinder position, a pattern is arranged at a predetermined position among the retracted position and the photographing possible position, and a brush switch 54 is slidably provided. From the output signal of the brush switch 54, the microcomputer 8 (see FIG. 1) determines each position of the taking lens barrel 2. In addition,
It goes without saying that a position other than the brush switch shown in the figure may be used to detect the position of the taking lens barrel 2.

Further, 51 is a fixed cylinder, and the fixed cylinder 51
A taking lens barrel 2 including a cam barrel 2'and a moving barrel 52, which will be described later, is fixed to the camera body, and a straight groove 51a is provided on the surface. The cam cylinder 2'is fitted around the outer circumference of the lens so that it can rotate only in the direction perpendicular to the photographing optical axis. Reference numeral 52 is a movable barrel equipped with a taking lens, an AF shutter, and the like. 52
Reference numeral a denotes a cam follower 52a provided on the surface of the movable barrel 52, which is fitted in the straight groove 51a of the fixed barrel 51 and fitted in the cam groove 2d of the cam barrel 2. The movable barrel 52 can be moved back and forth with respect to the fixed barrel 51 only in the photographing optical axis direction, and its position is determined by the rotational position of the cam barrel 2 '.

A cam groove 2d provided on the cam barrel 2 '.
6B, a position for holding the taking lens barrel 2 in the retracted state, (the retracted position described above,
7) is provided, and the movable barrel 52 is located at this position, the photographing lens barrel 2 does not project from the camera surface as shown in FIG. 7B (collapsed state). . Further, when the movable barrel 52 is positioned at the shooting lens extension (corresponding to the above shooting position) provided in the cam groove 2d, the shooting lens barrel 2 is projected onto the camera surface as shown in FIG. 7A. The camera is ready for shooting.

When the cam follower 52a of the movable barrel 52 is fitted in the position of or in the cam groove 2d, the stopper blade 32a shown in FIG. 2 protrudes to lock the positioning protrusion 28a of the planetary gear 26. Thus, the planet gears 26 are held in the switching state at that time (the film feeding drive side or the drive side of the cartridge chamber lid 3). That is, the power split destination of the first motor 4 is fixed. Further, when the cam follower 52a is fitted in the position of the cam groove 2d, the stopper 32 falls into the groove 2a, and the stopper blade 3
Since 2a is in the retracted state in which the positioning projection 28a is not locked, the planetary gear 26 is rotatable (revolved) about the sun gear 25. That is, the power split destination is switched in this state.

As described above, when the retracting position of the taking lens barrel 2 (the portion corresponding to the cam groove 2d) is used to move the stopper blade 32a forming a part of the power split mechanism back and forth, There are advantages that are almost unnoticed in appearance.

Further, the position control of the groove 2a which actually moves the stopper blade 32a back and forth is performed by the position detection flexible printed circuit board 53 and the brush switch 54 (output signal) provided in the taking lens barrel 2. Since it is used, there is an advantage that it is not necessary to provide a special position detection switch for advancing and retracting the stopper blade 32a.

8 to 17 are views showing the top and front of the camera, which schematically show the movements of the main parts of this embodiment in accordance with the sequence thereof.

FIG. 8 is a view showing the meshing state of various gears when there is no film cartridge in the cartridge chamber 1b.

In FIG. 8, the reduction gear train starting from the pinion gear 11 of the first motor 4 is in mesh with the sun gear 25 in the film rewinding state, and the planetary gear 16 is changed to the one-way gear 20. It is stopped in a meshed state. In this state, the first motor 4
The planetary gear 26 that outputs the power of
a is a positioning stopper 32 (stopper blade 3) hitting a position corresponding to a position of the taking lens barrel 2.
Since it is locked to 2a), it is meshed with and held by the cartridge chamber lid driving transmission gear 34 (the cartridge chamber lid driving side).

In the state of FIG. 8, it is not necessary to feed the film because the film cartridge is not loaded,
Therefore, power is not transmitted to the driver gear 31 that drives the spool in the film cartridge. Further, in this state, by rotating the first motor 4 forward and backward, the film take-up spool 9 shown in FIG. 2 and the like also rotates, but there is no problem because a film cartridge is not loaded in the camera.

On the other hand, in the planetary gear 38 driven by the second motor 5, the planetary plate 42 is sandwiched by the bite prevention stopper 43a and the escape prevention stopper 3e, so that the photographing lens barrel is engaged. 2 (gear part 2b)
It is possible to transmit the power in the forward and reverse rotation directions to. Therefore, if the cartridge chamber lid 3 is closed,
The focus position of the taking lens barrel 2 can be changed even when the film cartridge is not loaded.

FIG. 9 shows a switch 4 for automatically loading the cartridge.
4 is a view showing a position where the cartridge chamber lid 3 is started to be opened when 4 is pushed.

Each of the main gears driven by the first motor 4 starts rotating in the direction of the arrow in FIG. 9A, and the planetary plates 17 and 27 try to rotate in the direction of the thick arrow by the friction force. To do. Then, the power of the first motor 4 transmitted to the cartridge chamber lid driving transmission gear 34 is transmitted to the cartridge chamber lid driving gear 36 through the connecting shaft 35 shown in FIG.
Is transmitted to the rack 3a provided in the cartridge chamber lid 3 and the cartridge chamber lid 3 starts to drive in the opening direction (drive in the arrow direction in the figure).

FIG. 10 is a diagram showing a state immediately before the cartridge chamber cover 3 is completely opened by the power of the first motor 4.

The cartridge chamber lid 3 is continuously driven to open by the power of the first motor 4, and the cartridge chamber lid open end surface 3c presses the cartridge chamber lid opening completion detection switch 46 to drive the cartridge chamber lid 3 to open. Ends.
At this time, the planetary plate 42 comes into contact with the escape preventing stopper 3d while the cartridge chamber lid 3 is being driven to open, and rotates about the rotary shaft 41 in the direction of the arrow in FIG. Then, when the cartridge chamber lid 3 is completely opened, the planetary plate 42 is sandwiched between the bite prevention stopper 43b and the escape prevention stopper 3d, so that the planetary gear 38 is moved to the photographing lens barrel 2 ( The meshing state is switched from the drive gear 2b) to the speed increasing gear 39. That is, the mechanism such as the planetary gear 38 that switches the division destination of the power of the second motor 5 switches from the taking lens barrel 2 side shown in FIG. 9 to the film cartridge transporting mechanism side shown in FIG.

Therefore, both the pulling-in and feeding-out of the film cartridge can be performed by the forward / reverse rotation of the second motor 5.

FIG. 11 is a view showing a place where the film cartridge is inserted into the cartridge insertion opening 1a after the cartridge chamber cover 3 is completely opened.

The cartridge chamber lid 3 which has been driven by the first motor 4 has already been opened and is therefore stopped. In this state, as shown in FIG. 11, when the film cartridge 60 is inserted into the opened cartridge insertion opening 1a, the film cartridge entry / delivery detection switch 47 is pressed, and the signal generated by this is shown in FIG. The second motor 5 is driven by being transmitted to the microcomputer 8 shown, and the sun gear 37, the planetary gear 38, the speed increasing gear 39, and the drive gear 40 are each rotated in the arrow direction in the figure.

Therefore, at this time, the film cartridge 60
The drive roller 7 (see FIG. 5), which acts to pull in the film, rotates, and the film cartridge 60
Is automatically drawn into the camera.

FIG. 12 is a view showing a state immediately after the film cartridge 60 is completely loaded in the cartridge chamber 1b.

When the second motor 5 draws in the spool, the spool provided inside the film cartridge 60 eventually becomes engaged with the engaging portion 31a of the camera side driver gear 31.
And the film cartridge 60 at almost the same time.
Cartridge end detection switch 48 depending on the end face of the
Is pressed and turned on. As a result, the driving of the second motor 5 is stopped by the microcomputer 81, and the pull-in drive of the film cartridge 60 is completed.

FIG. 13 is a diagram showing a state immediately after the film cartridge loading completion signal is transmitted to the microcomputer 8 and the closing drive of the cartridge chamber lid 3 is started.

At this time, the pulling drive of the film cartridge 60 by the second motor 5 is stopped because the film cartridge is already loaded. On the other hand, when the cartridge loading completion detection switch 48 is turned on, the first motor 4 is driven by the microcomputer 8 this time, and the closing drive of the cartridge chamber lid 3 is started. The main rotation direction of the gear at this time is as shown in FIG. Then, due to this drive, the planetary gear 15 meshes with the one-way gear 21,
Although the one-way clutch effect is produced, in the case of this embodiment, even if the speed of the cartridge chamber lid 3 that is closed and driven is further increased with a finger or the like to disengage the clutch, the cartridge chamber lid 3 will be If stopped, the clutch will be directly connected and the closing force of the cartridge chamber lid 3 will be obtained.
There is no problem at all.

On the other hand, the planetary plate 27 is provided with the planetary gear 26.
Is separated from the cartridge chamber lid drive transmission gear 34,
Although it tries to rotate in the direction of the arrow in FIG. 13 so as to be meshed with the film feeding transmission gear 29, as shown in the drawing, the planet gear positioning projection 28a is locked by the positioning stopper 32 and the bite prevention stopper. Since the planetary plate 27 is in contact with 27a, the planetary gear 26 is kept in a state of being meshed with the cartridge chamber lid drive transmission gear 34. That is, even if the first motor 4 rotates in a direction in which the power is switched to the film feeding drive side, either the film feeding drive side or the driving side of the cartridge chamber lid 3 is driven by the first motor 4. In the state where the positioning stopper 32, which is a part of the mechanism for switching the power split destination, is provided on a part of the taking lens barrel 2 and locks the planet gear positioning projection 28a as shown in the drawing (the taking lens barrel. Is in the retracted position), the power split destination is held on the drive side of the film cartridge chamber lid 3.

FIG. 14 is a diagram showing a state immediately after the film cartridge 60 is loaded and the closing drive of the cartridge chamber lid 3 is completed.

Cartridge chamber lid 3 by the first motor 4
When the cartridge chamber lid closing end surface 3b presses the cartridge chamber lid closing completion detection switch 45 at the time of closing driving of, the second motor 5 is immediately driven by the microcomputer 8. As a result, the taking lens barrel 2 is moved from the position (from the retracted position). This is because the planetary plate 42 comes into contact with the escape prevention stopper 3e during the closing drive of the cartridge chamber lid 3 and is rotated about the rotation shaft 42, and the planetary gear 38 moves from the speed increasing gear 39 to the taking lens barrel 2 side. , And then the cartridge chamber cover 3
When is completely closed, the planetary plate 42 will prevent the escape stopper 3
It is sandwiched between e and the bite prevention stopper 43a, the planetary gear 38 is held in mesh with the taking lens barrel 2, that is, a mechanism for switching the second motor fifth power split destination from the film cartridge carrying drive side to the taking lens. This is because the lens barrel 2 is switched to the driving side and held in this state so that it can rotate both forward and backward.

Even when the closing of the cartridge chamber lid 3 is completed, the driving of the cartridge chamber lid 3 by the first motor 4 in the closing direction is continued. Therefore, immediately after the completion of the drive for closing the cartridge chamber lid 3, the photographic lens barrel 2 is moved to the position, and the positioning stopper 32 is retracted in the direction of the arrow in FIG. The plate 27 can start rotating to the film feeding transmission gear 29. Needless to say, as the photographic lens barrel 2 is moved to the position, the planetary gear positioning projection 28 is formed by the positioning stopper 32 provided in a part of the photographic lens barrel 2.
This is because the locking of a is released, and the power of the first motor 4 causes the planetary gear 26 to act as a rotational force in the arrow direction of FIG.

Immediately after the completion of the closing of the cartridge chamber cover 3 and until the taking lens barrel 2 is moved from the position to the position, the driving of the first motor 4 may be temporarily stopped, but smoother power division is possible. This is done because it takes an extra time and is not preferable when the previous switching is targeted.

FIG. 15 is a diagram showing a state in which the film is wound up and fed to the film photographing position after the film cartridge 60 is loaded and the cartridge chamber lid 3 is closed (the film idling completion state). .

A predetermined time t ₀ sufficient for the planetary gear 26 to switch from the cartridge chamber lid drive transmission gear 34 to the film feed drive transmission gear 29 is measured by the timer in the microcomputer 8, and this time elapses. After that, the second motor 5 is driven to return the taking lens barrel 2 from the position to the position again. Therefore, the planetary gear 26 has the positioning protrusion 2
Since 8a is locked by the positioning stopper 32, it can no longer escape from the film feeding drive transmission gear 29, and the planetary plate 27 comes into contact with the bite prevention stopper 27b, so that both forward and reverse rotations are possible. The force can be transmitted to the film feed drive transmission gear 29.

When the planetary gear 26 is meshed with the film feed drive transmission gear 29, the driver gear 31 starts to rotate in the direction of the arrow, the film is sent out from the film cartridge 60, and it is passed between the aperture (not shown) and the pressure plate. hand,
The film is taken up by the film take-up spool 9 which has already been taken up and rotated.

A film position detecting means (not shown),
Alternatively, when the microcomputer 8 confirms that the film has been wound up to the shootable position by using the film number counting means, the drive of the first motor 4 is stopped and the film winding drive is ended. That is, this means that the film skipping is completed.

On the other hand, since the planetary gear 38 is always meshed with the taking lens barrel 2, the position can be used to arbitrarily select the position of the taking lens barrel 2 in the same manner as in the conventional case.

FIG. 16 is a diagram showing a state in which the film rewinding and feeding are performed when the shooting of the specified number of films has been completed or the forced rewinding switch described later is pressed.

The rotation direction of the main feeding gear due to the power transmission of the first motor 4 at this time is as shown in FIG. 16 (a), and the planet gear 16 meshes with the one-way clutch 19 without passing through the clutch mechanism. It is in the state of transmitting power. Further, at this time, the planetary plate 27 is attached to the planetary plate 27
Although a force to rotate 6 from the film feed drive transmission gear 29 to the cartridge chamber lid drive transmission gear 34 acts, the planet gear positioning projection 28a engages the positioning stopper 32 as shown in the figure. By being stopped, the meshing with the film feed drive transmission gear 29 is maintained. Therefore, the power of the first motor 4 is transmitted to the driver gear 31, and the rewinding of the film into the film cartridge 60 is continued. Then, when it is confirmed by the film position detecting means that the film is completely rewound into the film cartridge 60, the microcomputer 8 stops the driving of the first motor 4 and the film rewinding drive is completed.

FIG. 17 is a view showing a state in which the automatic cartridge loading switch 44 is pressed to eject the film cartridge 60.

When the automatic cartridge loading switch 44 is pressed, the microcomputer 8 starts driving the second motor 5 to switch the taking lens barrel 2 from the position, and at the same time, the cartridge chamber lid 3 is opened and driven. The driving of the first motor 4 is started to perform the above.

When the taking lens barrel 2 is switched to the position by the above driving, the spring-biased positioning stopper 32 falls into the groove 2a, and comes to a position where the planet gear positioning projection 28a is not locked. As a result, the planetary gear 26 to which the power of the first motor 4 has already been transmitted in the opening drive direction of the cartridge chamber cover 3 is moved from the film feeding drive gear 29 to the cartridge chamber cover drive gear 34.
You can switch to. Then, the timer in the microcomputer 8 measures a time t ₀ sufficient for the planetary gear 26 to switch from the film feeding drive gear 29 to the cartridge chamber lid drive gear 34, and after this time elapses, the taking lens barrel is again displayed. The second motor 5 is rotated in the reverse direction so as to return 2 from the position, and the state becomes the same as the state of FIG. 8 described above.

After that, the opening drive of the cartridge chamber lid 3 is performed. This is performed from the state of FIG.
By continuing to drive until the release is completed, it is possible to realize smoother switching of the power split destination without stopping the movement depending on the position of the planet gear positioning stopper 32.

Film cartridge 60 to be performed below
8 and 17 and the difference in the rotation directions of the first and second motors 4 and 5, the details of these movements will be described. Omit it.

FIG. 18 is a block diagram showing the main structure of the camera according to the embodiment of the present invention.

In FIG. 18, reference numeral 1701 denotes a microcomputer that controls various operations of the camera, which corresponds to the microcomputer 8 shown in FIG. 1, and has a time control means such as a timer or a counter for timing the time. ing. 1703
Is a main power switch (main switch), 1704 is a release switch for starting a release operation, 1705
Is a cartridge automatic loading switch corresponding to the cartridge automatic loading switch 44 shown in FIG. 4 and the like, and 1706 is a forced rewinding switch used when the photographic film is forcibly rewound. Reference numeral 1707 denotes a focal length variable switch for changing the focal length of the taking lens barrel 2 in the camera having a variable focal length.

Reference numeral 1708 is a photographing means for performing distance measurement, focus adjustment, diaphragm drive, shutter drive, photometry, etc., 1709 is a shutter drive motor, and 1710 is a motor corresponding to the first motor 4 shown in FIG. . Reference numeral 1711 denotes a motor driving means which is controlled by the microcomputer 1701 and drives the motor 1710. The power of the motor 1710 is, as described above, the film feeding drive for winding and rewinding the film, and the cartridge chamber lid 3. Used for opening and closing drive. Reference numeral 1712 is a motor corresponding to the second motor 5 shown in FIG. Reference numeral 1713 denotes a motor drive unit that is controlled by the microcomputer 1701 and drives the motor 1712. The power of the motor 1712 drives the photographing lens barrel 2 (positions ,,) and the film cartridge 60 as described above. Used for transportation (pulling in, sending out).

Reference numeral 1714 denotes a cartridge chamber for detecting a position such as whether the cartridge chamber cover 3 is in a completely opened position, a completely closed position, or a halfway stop. It is a lid position detecting means, and the above-mentioned cartridge chamber lid closing completion detecting switch 45
And the cartridge chamber lid opening completion detection switch 46.

The reference numeral 1715 indicates whether the film cartridge 60 inserted in the camera is inserted to a position where it can be retracted by the drive roller 7, or is completely loaded in the cartridge chamber 1b, or the film cartridge 60 is provided. Is a film cartridge loading position detecting means for detecting the position of the film cartridge 60 in the camera, such as whether or not the film cartridge has been sent out to a position where it can be taken out by the camera user. It corresponds to the loading detection switch 48.

Reference numeral 1713 denotes a film cartridge single-body light-shielding detection for detecting whether the film cartridge 60 is in a safe state in which the necessary film is not exposed even if the film is completely rewound and the cartridge chamber lid 3 is opened in the camera. A film position detecting unit, a film number detecting unit, or the like is specifically used.

19 and 20 show the microcomputer 170 described above.
2 is a flowchart showing the control (operation) in step 1, in which the operation starts from step 1802 via step 1801.

When the main power switch 1703 is turned on in step 1802, the automatic cartridge loading switch 1705 is first displayed in the next step 1803.
The state of accepting ON of (44) is set. This is to prevent the cartridge chamber lid 3 from being opened carelessly. And here, the cartridge automatic loading switch 17
When 05 (44) is turned on, the process proceeds from step 1803 to step 1804, the film is completely rewound into the film cartridge 60, and even if the cartridge chamber lid 3 is opened, the required film is not exposed and the film is not exposed. Is the cartridge 60 ready for delivery, or
Whether the cartridge is not loaded or not is detected by means of the cartridge single-body light-shielding detection means 1716, the flexible printed circuit board 53, the brush switch 54 and the like. As a result, when the film is still in a photographable state, the process proceeds from step 1804 to step 1841 to cancel the command of the automatic cartridge loading switch 1705.

On the other hand, the film cartridge 60 can be sent out, or the film cartridge 60
When the cartridge chamber cover 3 is not loaded, the process proceeds from step 1804 to step 1805, and the cartridge chamber cover position detection means 1714 detects whether the cartridge chamber cover 3 is open or closed. If the cartridge chamber lid 3 is opened, the power split destination of the motor 1710 (hereinafter, referred to as the first motor 4) is already switched to the drive side of the cartridge chamber lid 3 (the gear meshing). If only the state is shown, it is the same as in FIG. 12), Step 1
The process proceeds from step 805 to step 1820, and the first motor 4 is driven to start the closing drive of the cartridge chamber lid 3 in order to prevent the state where the cartridge chamber lid 3 remains open. Then, when it is detected in step 1821 that the cartridge chamber lid 3 has completely reached the closed position, in the next step 1822, the closing drive of the cartridge chamber lid 3 by the first motor 4 is finished.

If it is confirmed in step 1805 that the cartridge chamber lid 3 is closed, the process proceeds from step 1805 to step 1843, and the presence / absence of the film cartridge 60 is detected by using the cartridge loading completion detection switch 48. To detect. If the film cartridge 60 is not loaded, the routine proceeds from step 1843 to step 1812, and the first motor 4 is driven to open the cartridge chamber lid 3.
On the contrary, when the film cartridge 60 is loaded, the routine proceeds from step 1843 to step 1806, where the motor 1712 (hereinafter referred to as the second motor 5) moves the taking lens barrel 2 into the power split mechanism. It is driven to a position (retractable position) that enables switching of the.
Then, in step 1807, the first motor 4 is started to be driven in the rewinding direction (the opening direction of the cartridge chamber cover 3), and the film feed drive is switched to the cartridge chamber cover drive as soon as the locking of the power split mechanism is released. To be replaced.

At this time, in order to prevent a failure in switching the power split destination, in the next step 1808, the clock control means 1
702 (hereinafter, referred to as timer T ₁ ) is started, and in the following step 1809, the power is operated for a predetermined time T _A (corresponding to the above-mentioned predetermined time t ₀ ) sufficient for switching the gear (planetary gear 26) of the power split mechanism. Allows variable splitting.
Then, when the predetermined time T _A elapses, the next step 18
In step 10, the timer T ₁ is reset, and in step 1811, the second motor 5 drives the taking lens barrel 2 to the original position (collapsed position), and the power split destination of the first motor 4 is changed. Completely switch to the drive side of the cartridge chamber lid 3.

Since the power split destination is switched using the timer T ₁ as described above, the sun gear 2
It is possible to smoothly perform the power split operation without causing unnecessary rotation of the gear 7 and the like and without applying a switching load to the gear and the like.

When the switching of the power split destination to the drive side of the cartridge chamber lid 3 is completed, the film rewinding drive force of the first motor 4 which generated the power split destination switching force remains in the same rotation direction. The driving force is used to open the cartridge chamber cover 3. That is, the power split destination of the first motor 4 is switched from the film feeding drive side to the drive side of the cartridge chamber lid 3, and at the same time, the rotation direction of the first motor 4 remains unchanged and the cartridge chamber Lid opening begins immediately (step 1812).

By switching the power split destination in steps 1806 to 1812, that is, the power split mechanism by an electrical sequence, the power split mechanism moves from the film feeding side to the opening / closing start side of the cartridge chamber lid 3. There is a possibility that the film may be fed during the short period of switching, but since the driving direction of the first motor 4 at this time is the film rewinding direction, the film is never fed.
There is no concern that it will come out of 0, and since it is not necessary to stop the driving of the first motor 4 or change its rotation direction immediately after switching the power split destination of the first motor 4, The power split destination can be smoothly switched to the drive side of the cartridge chamber lid 3.

After the opening drive of the cartridge chamber cover 3 is started, when the cartridge chamber cover open position detection means 1714 detects the completion of opening the cartridge chamber cover 3 in the next step 1813, in the following step 1814, the first The drive for opening the cartridge chamber lid 3 by the motor 4 is finished. Then, in the next step 1815, the film cartridge loading completion detection switch 48, which is one of the film cartridge loading position detecting means 1715, determines whether or not there is the film cartridge 60 in the opened cartridge chamber 1b.

As a result, when the presence of the film cartridge 60 in the cartridge chamber 1b is detected, the step 1
815 to step 1838 of FIG. 20B,
Here, the second motor 5 is driven to start the delivery of the film cartridge 60. In the following step 1839, the film cartridge entry / delivery detection switch 4 which is one of the cartridge loading position detection means 1715.
When it is detected that the film cartridge 60 has been sent to the predetermined position by means of 7, the film cartridge 60 by the second motor 5 is detected in step 1840.
Finish sending out drive.

Therefore, even after the film cartridge 60 is pulled out from the camera by the camera user, the cartridge chamber 1b remains open, and unless the automatic cartridge loading switch 1705 (44) is turned on again, the cartridge chamber 1b is not opened. It won't close.

On the other hand, in step 1815 above,
If it is determined that the film cartridge 60 does not exist in the opened cartridge chamber 1b, step 1815
To step 1816, the timer T ₁ in the microcomputer 1701 is started, and the following steps 1817, ₁
At 818, the insertion (entry) of the film cartridge 60 is waited for a predetermined time T _B. If the film cartridge 60 has not been inserted within the predetermined time T _B , the process proceeds from step 1818 to step 1819 where the timer T ₁ is reset and the process proceeds to steps 1820 to 1822 described above. The operation of closing the cartridge chamber lid 3 is performed by driving the first motor 4.

On the contrary, when it is detected that the film cartridge 60 is inserted within the predetermined time T _B , step 18
17 to step 1823 in FIG. 20A, the timer T ₁ is reset here, and in the next step 1824, the second side is switched from the side of the taking lens barrel 2 to the side of transporting the film cartridge 60. The motor 5 is driven to start pulling in the film cartridge 60. Then, in step 1825, the film cartridge 60 is pulled into the cartridge chamber 1b by the drive roller 7 and the film cartridge loading position detecting means 17 is provided.
When the film cartridge loading completion detection switch 48, which is one of 15, is turned on, the drive of the second motor 5 is stopped in the next step 1826.

In the next step 1827, the first motor 4 is driven to start the closing drive of the cartridge chamber cover 3, and in the following step 1828, the cartridge chamber cover 3 presses the cartridge chamber cover close completion detection switch 46. Then, when it is detected that the cartridge chamber lid 3 is closed, that is, when the completion of the closing of the cartridge chamber lid 3 is confirmed, the process proceeds to step 1829, and the driving for closing the cartridge chamber lid 3 by the first motor 4 is once finished. By closing the cartridge chamber cover 3 in this way, the power of the second motor 5 is switched from the carrying side of the film cartridge 60 to the taking lens barrel 2 side.
In the next step 1830, the second motor 5 is driven to move the taking lens barrel 2 to the retracted position. Further, since the photographic lens barrel 2 has been moved to the retracted position in this way, the power of the first motor 4 is switched from the drive side of the cartridge chamber lid 3 to the film feeding side. The first motor 4 is driven again in the film winding direction.

Next, the above steps 1808 to 1810.
Similarly, in step 1832, first, the timer T ₁ is activated to ensure the switching of the power split destination, then in step 1833, waiting for the predetermined time T _A to elapse, and then in step 1834, the predetermined time T 1 is set.
_{When A} has elapsed, the timer T ₁ is reset. Then, in step 1835, the second motor 5 is driven to return the taking lens barrel 2 from the retracted position to the retracted position, and the power split mechanism is set so that the output of the first motor 4 is transmitted to the film feeding drive side. Hold it.

Thus, at the moment when the power of the film winding direction by the first motor 4 is switched from the drive side of the cartridge chamber lid 3 to the film feeding drive side, the film winding is started and sent out from the film cartridge 60. The film is taken up by the film take-up spool 60 while the film position is detected by the film position detecting means provided in the camera.

Then, in step 1836, when the film position detecting means detects that the film has been fed to the photographic position, it is determined that the film has been idly fed and the process proceeds from step 1836 to step 1837. The film winding drive by the motor 4 of No. 1 is completed.

Incidentally, the above-mentioned steps 1829 to 1837.
In the present invention, the series of rotations of the first motor 4 from the closing drive of the cartridge chamber lid 3 to the automatic feeding from the film photographing position to the film photographing position coincides with the closing rotation direction of the cartridge chamber lid 3 and the film winding direction. Therefore, steps 1829 and 1831 are not always necessary. By doing so, there is no need to stop or reverse the rotation of the first motor 4 from the start of the closing drive of the cartridge chamber lid 3 to the end of winding the film to the film photographing position, and it is very smooth. The power can be switched to the film feeding drive. Further, even when the power split mechanism is switched from the drive side of the cartridge chamber lid 3 to the film feeding side, the cartridge chamber lid 3 may be driven after the closing of the cartridge chamber lid 3 is completed. However, since the film winding drive direction coincides with the cartridge chamber lid closing drive direction, the cartridge chamber lid 3 is never driven in the opening direction.

The film cartridge 60 is automatically loaded as described above.

Then, in step 1841, when the main power switch 1703 is turned off, a series of operations is ended and the automatic cartridge loading switch 44 is no longer accepted.

By using the film feeding mechanism, the cartridge chamber lid opening / closing mechanism, the photographing lens barrel driving mechanism, the cartridge retracting / feeding mechanism and the mechanical sequence, and the electrical sequence and the electrical circuit described above, the cartridge having the following features An automatic loading mechanism can be realized.

The present invention may be applied to any camera such as a single lens reflex camera, a lens shutter camera and a video camera.

According to the present embodiment, a part of the power splitting means for splitting the power of the first motor 4 into a plurality of parts, which is interlocked with the driving of the taking lens barrel 2 driven by the second motor 5 ( Since the stopper 32 and the friction spring 33 that form the means for switching the power split destination are provided, it is not necessary to provide an expensive plunger or the like that serves as the means for switching the power split destination, and the camera can be made compact and low in size. Cost reduction can be achieved.

By moving the cartridge chamber cover 3,
Since the planetary gear mechanism including the sun gear 37, the planetary gear 38, and the planetary planetary plate 42 is switched (hence,
The planetary gear mechanism and the cartridge chamber cover 3 constitute a power splitting means), and similarly to the above, it is not necessary to provide a plunger or the like which constitutes a locking means for switching the power split destination,
It is possible to reduce the size and cost of the camera.

In addition to the above structure, the switches (45, 46) for detecting the position of the cartridge chamber cover and the switch (4) for detecting the loading state of the film cartridge 60 are provided.
7 and 48) and a cartridge automatic loading switch 4, and the microcomputer 8 controls the drive of the first motor 4 and the second motor 5 in accordance with these states. It is possible to easily and accurately pull in and feed out the film cartridge while achieving downsizing and cost reduction of the camera.

Further, two non-photographing positions of the photographing lens barrel 2, in the embodiment, two retractable positions are provided (collapsed positions), and the cam barrel 2'is moved to one of the positions for power splitting. Since it has a configuration capable of switching, it is not necessary to newly provide a special switching position.

(Correspondence between Invention and Embodiment) In this embodiment, the second motor 5 corresponds to the lens barrel driving motor described in claim 1 of the present invention, and the first motor 4 corresponds to claim 1. It corresponds to a motor other than the lens barrel driving motor described above, and the planetary gear positioning stopper 32 and the biasing spring 33 correspond to a positioning member forming part of the power split means according to claim 1 of the present invention.

The sun gear 25, the planetary gear 26, the planetary plate 27, the planetary gear positioning stopper 32, and the biasing spring 33 correspond to the power splitting means according to claim 2 of the present invention.

Further, the sun gear 37, the planetary gear 38, the planetary plate 42 and the cartridge chamber lid 3 correspond to the power splitting means of the third, fourth or sixth aspect.

The sun gear 25, the planetary gear 26, the planetary plate 27, the planetary gear positioning stopper 32, and the biasing spring 33 correspond to the first power splitting means according to claim 5 of the present invention, and the sun gear 37. , The planetary gear 38, the planetary plate 42, and the cartridge chamber lid 3 correspond to the second power splitting means according to claim 5, and the cartridge chamber lid closing completion detection switch 45,
The cartridge chamber lid opening completion detection switch 46 corresponds to the first detection means according to claim 5, and the cartridge entry / delivery switch 47 and the cartridge loading completion detection switch 48.
Corresponds to the second detection means according to claim 5, and the microcomputer 8
Corresponds to the control means described in claim 5, and the cartridge automatic loading switch 44 corresponds to the cartridge automatic loading means described in claim 5.

The above is the correspondence relationship between each configuration of the embodiment and each configuration of the present invention, but the present invention is not limited to this configuration, and any configuration capable of achieving the function described in the claims can be used. It goes without saying that it can be anything.

[0119]

As described above, the present invention according to claim 1 forms a part of power splitting means for splitting power from a motor other than the lens barrel driving motor, and drives the taking lens barrel. A positioning member that determines the power split destination according to the position is provided, and the planetary gear mechanism is positioned using the positioning member that interlocks with the movement of the taking lens barrel. It is divided into a film feeding drive and an opening / closing drive of the cartridge chamber cover.

Therefore, the driving of the taking lens barrel can be used to divide the power of the motors other than the lens barrel driving motor by the inexpensive and small positioning member, thereby achieving downsizing and cost reduction of the camera. can do.

According to the third aspect of the present invention, the power for switching the power of the lens barrel driving motor to another driving member other than the driving of the taking lens barrel by utilizing the movement of the cartridge chamber lid. Splitting means is provided, and when the cartridge chamber lid is moved, the power split destination of the lens barrel driving motor is switched to transmit the power to a driving member other than the driving of the taking lens barrel.

Therefore, it is possible to divide the power of the lens barrel driving motor without using a dedicated member, and it is possible to reduce the size and cost of the camera.

According to the fifth aspect of the present invention, when the automatic loading start instruction is given by the film cartridge automatic loading means, the film feeding drive is performed based on the position information of each of the cartridge chamber lid and the film cartridge. The motor used to open / close the cartridge chamber lid and the motor used to drive the photographing lens barrel and drive the film cartridge are controlled.

Therefore, it is possible to easily (automatically) and surely carry the film cartridge and open / close the cartridge chamber cover while achieving downsizing and cost reduction of the camera.

Further, according to the present invention, in the non-photographing position of the photographing lens barrel, the power of motors other than the lens barrel driving motor is divided into a film feeding drive and a cartridge chamber cover opening / closing drive. Power splitting means is provided, and the present invention according to claim 7 is the non-photographing position of the photographing lens barrel,
A first positioning member makes the power split destination switchable
The second position for disabling the switching of the power split destination and the power split destination is provided, and the power of the motor other than the lens barrel driving motor is split at the non-shooting position of the shooting lens barrel which has not been used until now. I'm trying to do.

Therefore, it is possible to divide the power of the motors other than the lens barrel driving motor without increasing the size of the camera and without being noticed by the user.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main configuration of a camera according to an embodiment of the present invention.

2 is a perspective view showing a film feeding mechanism included in the camera of FIG. 1. FIG.

FIG. 3 is an exploded perspective view showing a detailed structure of a part of FIG.

4 is a perspective view showing a cartridge carrying mechanism and a cartridge chamber lid opening / closing mechanism of the camera of FIG. 1. FIG.

5 is an exploded perspective view showing a detailed structure of a part of FIG. 4. FIG.

FIG. 6 is an exploded perspective view showing the structure of the taking lens barrel shown in FIG. 1 and the like.

7 is a perspective view of the camera showing a case where the taking lens barrel shown in FIG. 1 and the like is in a photographing possible position and a retracted position.

8A and 8B are views showing a top surface and a front surface of the camera showing a meshed state of various gears when a film cartridge is not present in the cartridge chamber shown in FIG. 1 and the like.

9A and 9B are a top view and a front view of the camera showing a state when the opening drive of the cartridge chamber lid is started from the state of FIG.

FIG. 10 is a diagram showing the top and front of the camera showing a state immediately before the cartridge chamber cover of FIG. 9 is fully opened.

11A and 11B are views showing the upper surface and the front surface of the camera, showing the state when the insertion of the film cartridge is started from the state of FIG.

FIG. 12 is a diagram showing the top and front of the camera showing the state when the loading of the film cartridge is completed from the state of FIG. 11;

13A and 13B are views showing a top surface and a front surface of the camera, showing a state when the closing drive of the cartridge chamber lid is started from the state of FIG.

14A and 14B are views showing the top and front of the camera, showing the state immediately after the end of the drive for closing the cartridge chamber lid from the state of FIG.

15A and 15B are views showing the upper surface and the front surface of the camera, showing a state when the film idling is started from the state of FIG.

FIG. 16 is a diagram showing the top and front of the camera, showing the state when filming is finished and film rewinding is started in the state shown in FIG. 15;

FIG. 17: The film rewinding is completed from the state of FIG.
It is a figure which shows the upper surface and front of a camera which shows a state just before sending out of a film cartridge.

FIG. 18 is a block diagram showing a main part of an electrical configuration of a camera of one embodiment of the present invention.

19 is a flowchart showing a part of the operation of the microcomputer shown in FIGS.

20 is a flowchart showing a continuation of the operation of FIG.

FIG. 21 is a perspective view showing a state where a film cartridge is loaded into a conventional camera as viewed from the back side of the camera.

FIG. 22 is a perspective view showing a state in which a film cartridge is loaded into a conventional camera, which is different from that in FIG. 21, as seen from the bottom side of the camera.

[Explanation of symbols]

 2 Photographing lens barrel 3 Cartridge chamber cover 4,5 First and second motors 7 Driving roller 8,1701 Microcomputer 25,37 Sun gear 26,38 Planetary gear 27,42 Planetary plate 28 Planetary gear rotating shaft 29 Film feeding Drive transmission gear 32 Planetary gear positioning stopper 33 Energizing spring 35 Communication shaft 41 Rotation shaft 44 Cartridge automatic loading switch 45 Cartridge lid closing completion detection switch 46 Cartridge lid opening completion detection switch 47 Cartridge entry / delivery switch 48 Cartridge loading completion detection Switch 53 Flexible printed circuit board 54 Brush switch

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G03B 13/34 17/04

Claims (7)

[Claims] 1. A camera including a taking lens barrel and a lens barrel driving motor for driving the taking lens barrel, wherein a power split is provided for splitting power from a motor other than the lens barrel driving motor. A camera, comprising a positioning member that forms a part of the means and determines a power split destination according to a driving position of the taking lens barrel. 2. The power dividing means is means for dividing the power of a motor other than the lens barrel driving motor into a film feeding drive and an opening / closing drive of the cartridge chamber lid. camera. 3. A camera comprising a taking lens barrel, a lens barrel driving motor for driving the taking lens barrel, and a cartridge chamber lid, wherein the power of the lens barrel driving motor is set to the photographing unit. A camera characterized in that a power splitting means for switching using a movement of the cartridge chamber lid is provided to a driving member other than the driving of the lens barrel. 4. The camera according to claim 3, wherein the power splitting means is means for splitting the power of the lens barrel driving motor into driving of the taking lens barrel and driving of transporting the film cartridge. 5. A camera including a taking lens barrel, a lens barrel driving motor for driving the taking lens barrel, and a cartridge chamber lid, wherein power is supplied in accordance with a driving position of the taking lens barrel. A first power split for splitting the power from a motor other than the lens barrel driving motor into a film feeding drive and an opening / closing drive of the cartridge chamber lid by using a positioning member that switches the split destination and forms a part of the means. Means, and second power splitting means for switching the power of the lens barrel driving motor between driving of the taking lens barrel and driving of transporting the film cartridge by using the movement of the cartridge chamber lid.
A first detection means for detecting the position of the cartridge chamber lid, a second detection means for detecting the position of the film cartridge, a film cartridge automatic loading means, and an automatic loading start instruction are given by the film cartridge automatic loading means. Then, the camera is provided with a control means for controlling each of the motors based on the detection signals of the first and second detection means. 6. The power dividing means is means for dividing the power of a motor other than a lens barrel driving motor into a film feeding drive and a cartridge chamber lid opening / closing drive at a non-photographing position of the photographing lens barrel. The camera according to claim 2, wherein: 7. A non-photographing position of the photographing lens barrel is provided with a first position at which a positioning member makes a power split destination switchable and a second position at which a power split destination cannot be switched. Claim 1, 2, 5, or 6 characterized
The listed camera.