JP3472012B2 - camera - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera, and more particularly to a camera that can use a film cartridge having a film status display means that changes according to the rotational position of a film winding spool.

[0002]

[Prior art]

(a) Japanese Patent Application No. 4-301829 and Japanese Patent Application Laid-Open No. 2-114
No. 248 PAT has been proposed in which a cartridge has a film state display means.

(B) Japanese Patent Application No. 4-349444 This PAT is interlocked with the cartridge take-out operation.
In order to uniformly display the film state of the cartridge as "exposed", it has been proposed to rotate the spool of the cartridge to a predetermined rotation position.

(C) Japanese Patent Application No. 5-183237 In the camera disclosed in the present specification, the film is automatically rewound when the lid of the cartridge chamber of the camera is accidentally opened. Film rewinding control is performed so that the film status display of the cartridge is changed to the display of "exposed".

[0005]

In the above-mentioned prior art cameras, "exposed" is uniformly applied regardless of the film condition.
Therefore, there is a drawback that the display information does not match the actual film state.

Further, when the film status display is changed to the display "exposed" in the rewinding control of the film, the film status display is caused by giving a vibration to the camera until the film cartridge is taken out. There was a drawback that it would shift and change.

The object of the present invention set forth in claim 1 is to
Spool in the Rum cartridge and the film door
And a motor having a movement means capable of being driven by the same drive source.
It is to provide Mela. It is an object of the present invention as set forth in claim 2 to provide a camera having a structure in which a film cartridge having a data disk as a film status display means can be used, and after the film is rewound, the film cartridge is left in the state of being mounted in the camera. Even if the display of the film status display means is changed due to the vibration applied to the camera at the time, the display of the film status display means is automatically displayed when the opening operation of the cartridge chamber lid of the camera is performed. It is to provide a modified camera.

An object of the present invention as set forth in claim 3 is a camera which can use a film cartridge having a film entrance / exit door and a data disk as a film status display means, for opening the cartridge chamber lid after rewinding the film. When the start is detected, the display of the film status display means is corrected to a predetermined display and the door is closed, so that light may leak into the cartridge when the cartridge is taken out of the camera. Is to provide a camera without.

An object of the present invention as set forth in claim 4 is a camera capable of using a film cartridge having a film entrance / exit door and a data disk as the film status display means, by closing the door to close the film status display means. It is to provide a camera capable of properly automatically correcting the display of.

[0010]

The object of the present invention set forth in claim 5 is to
Rewind the film into the film cartridge and
When the system status display is set to the specified state
The film cartridge is loaded in the camera.
As a result of the vibration being applied to the camera,
The display on the system status display means has changed significantly,
The film cartridge was not noticed by the camera user.
The risk of reusing the camera and the camera
Is to provide a camera. The main claim according to claim 6
The purpose of the paper is to roll the film into the film cartridge.
Rewind and set the film status display means to the specified condition.
The film cartridge is
If the camera is vibrated while it is still loaded inside the camera,
As a result, the display on the film status display means is significantly
The camera user has not noticed that.
Remove the film cartridge from the camera and
A camera that can prevent you from submitting it to RUM
Is to provide. Object of the present invention shown in claim 7
Rewinds the film into the film cartridge
The film status display means has been set to a predetermined condition.
State, the film cartridge is installed in the camera.
With the camera still loaded, vibration is applied to the camera.
As a result, the display on the film status display means has changed significantly.
Even if you do, the film status display
A turtle that has the function of returning the column display to the specified display state.
Is to provide LA. An object of the present invention as set forth in claim 8 is a camera capable of using a film cartridge having a film entrance / exit door, when an opening operation of a cartridge chamber lid of the camera is detected during a film winding operation or a film rewinding operation. It is an object of the present invention to provide a camera capable of stopping the film winding operation or the film rewinding operation and preventing the closing operation of the door.

It is an object of the present invention as set forth in claim 9 in a camera capable of using a film cartridge having a door at a film entrance / exit such that light does not leak from the film entrance / exit into the cartridge after the film is rewound. It is an object of the present invention to provide a camera configured such that the opening operation of the cartridge chamber lid can be performed after the door is closed.

[0013]

[0014]

[0015]

[0016]

[0017]

[Means for Solving the Problems ]
According to the invention of claim 1, the "film winding spool,
Film door opening / closing door located at the entrance / exit of the film
With a configuration that can use the film cartridge with
A cart for loading the film cartridge
Ridge chamber and the film cartridge to the cartridge chamber
Cart that can be opened and closed to load and unload
To open and close the ridge chamber lid and the cartridge chamber lid
In the camera including the opening / closing operation member of
Door opening / closing driver for driving the film door opening / closing door
And a spool drive that drives the film winding spool.
The moving means and the slide chamber according to the opening operation of the cartridge chamber lid.
Interlocking for linking the pool driving means and the door opening / closing driving means
A camera having means. ”
To serve. According to the present invention, the spool drive means and the door opening
Interlocking means for interlocking with the closing drive means is provided
Can drive the spool and the door with one drive system.
it can. In order to solve the above problems, the invention of claim 2 is
"In a camera having the structure of claim 1, the film
The cartridge is at the rotation stop position of the film winding spool.
Film status display hand that displays the film status according to the position
Comprises a stage, a film state detecting means for generating an output signal corresponding to the display state of the film state displaying means, the cartridge chamber lid closing operation for generating an operation signal to open by detecting the opening operation of the cartridge chamber lid And a control means for controlling the spool driving means and the door opening / closing driving means according to the output signals of the film state detecting means and the cartridge chamber lid opening / closing operation detecting means. When the opening operation of the cartridge chamber lid is detected by the cartridge chamber lid opening / closing operation detecting means after the rewinding of the film into the film cartridge is completed, the spool driving means drives the film winding spool to drive the film winding spool. A camera having a function of setting a state display means to a predetermined display state. "
I will provide a.

According to the present invention, the state of the film state display means is set in response to the opening operation of the cartridge chamber lid, so that the cartridge remains loaded in the camera after the display means is set. Even if vibration is applied to the camera in this state and the display of the display means is changed, the correction can be performed by the operation of opening the lid, so that there is no fear of taking out a cartridge with an erroneous display.

In order to solve the above-mentioned problems, the invention of claim 3 provides: "In the camera having the structure of claim 2 , the control means opens the lid of the cartridge chamber after the rewinding of the film into the film cartridge is completed. When an operation is detected by the cartridge chamber lid opening operation detecting means, the film winding spool is driven by the spool driving means to set the film state display means to a predetermined display state and at the same time by the door opening / closing drive means. A camera having a function of closing the film entrance opening / closing door.

According to the invention, after rewinding the film,
With respect to a predetermined stop position of the film status display means, the stop position of the film status display means is made to stand by in an offset phase by an amount corresponding to the closing operation amount of the film entrance / exit door of the cartridge to open the cartridge chamber lid. Thus, by interlocking the spool driving means and the door opening / closing driving means, the film closing display can be closed by setting the film state display means in a predetermined phase.

In order to solve the above-mentioned problems, the invention of claim 4 is that "in the camera having the structure of claim 2 , the control means opens the lid of the cartridge chamber after the rewinding of the film into the film cartridge is completed. When an operation is detected by the cartridge chamber lid opening operation detecting means, the film winding spool is driven by the spool driving means to set the film state display means to a predetermined display state and at the same time by the door opening / closing drive means. A camera having a function of closing the film entrance opening / closing door and a function of changing the standby position of the film status display means by an amount corresponding to the closing operation amount of the door. " provide.

According to the invention, after rewinding the film,
With respect to a predetermined stop position of the film status display means, the stop position of the film status display means is made to stand by in an offset phase by an amount corresponding to the closing operation amount of the film entrance / exit door of the cartridge to open the cartridge chamber lid. Thus, by interlocking the spool driving means and the door opening / closing driving means, the film closing display can be closed by setting the film state display means in a predetermined phase.

[0023]

[0024]

In order to solve the above-mentioned problems, the invention of claim 5
Said, "In a camera having the structure of claim 4,
The means further has a function of controlling the camera status display means.
And the film in the film cartridge
After the rewinding is completed, drive the film winding spool
The film state display means is set to a predetermined display state
The amount of the fill by the state or the amount corresponding to the closing movement of the door
If the standby position of the system status display means is changed,
From the cartridge chamber lid opening / closing operation detection means to the cartridge chamber
Detection of the film state when a lid opening operation detection signal is generated
If the film condition from the means is different,
It has the function of displaying a warning on the camera status display means.
"Camera characterized by that" is provided. According to the invention
If the film status display means is set to
The film cartridge inside the camera
It was left loaded and the camera was vibrated.
As a result, the display on the film status display means is large.
If the width has changed, the camera status display means
A warning message is displayed by the camera user
Avoid the risk of using the cartridge as it is
can do. In order to solve the said subject, Claim 6
The invention of "is, in the camera having the structure of claim 5,
The control means displays a warning on the camera status display means.
The cartridge chamber lid opening / closing operation detecting means.
Set operation of the film status display means based on the force signal
Providing a "camera characterized by prohibition". The present invention
According to the method, the film status display means is set to a predetermined state.
The film cartridge is
After being left loaded inside the camera, the camera vibrates.
As a result of the addition of
If the display has changed significantly, the control means
Automatically prohibited the removal of the film cartridge
The display of the film status display means goes wrong.
Remove the existing film cartridge from the camera
Risk of submitting to the film laboratory or reusing
Can be avoided in advance. Claims to solve the problems
According to the invention of claim 7, in the camera having the structure of claim 5,
The control means is configured to detect the opening / closing operation of the cartridge chamber lid.
The opening operation detection signal of the cartridge chamber lid is output from the step.
When the film is no longer displayed, the film status display means is
Amount corresponding to the indicated state or closing of the film entrance opening / closing door
Display with the standby position changed by the amount corresponding to the same movement amount
It is characterized by having a function of resetting the state
Camera. According to the invention, the film state
When the display means is set to the specified state,
The film cartridge will remain loaded in the camera for a long time.
After being left for a period of time, as a result of the camera being vibrated,
The display on the film status display means has changed significantly
Automatically display the film status display even if
The control means to correct it to a predetermined correct set state
So reused the crazy display film cartridge
Or avoid the risk of submitting to a film lab
Wear. In order to solve the above problems, the invention of claim 8 is
In a camera having the structure of claim 1,
It becomes comprises a cartridge chamber cover opening and closing detection means for generating an operation signal to open by detecting the opening operation of Tsu di chamber cover, and control means for controlling the film feeding means in the camera, and
The control means has a function of stopping the winding or rewinding operation by the film feeding means when the opening operation of the cartridge chamber cover is detected by the cartridge chamber cover opening / closing operation detecting means during the film winding or rewinding operation. A camera characterized by having a.

According to the present invention, when the start of the opening operation of the cartridge chamber lid is detected during the film winding or rewinding operation, the winding or rewinding operation is stopped. Even if the film state display means and the film entrance / exit door of the cartridge are brought into an interlocking state by a prepared opening operation, the door is not closed, and therefore the film is not damaged, and the cartridge is not damaged. Inadvertent opening of the chamber lid can also be prevented.

In order to solve the above-mentioned problems, the invention according to claim 9 "in the camera having the structure according to claim 1,
A cartridge chamber cover opening and closing detection means for generating an operation signal to open by detecting the opening operation of the cartridge chamber lid, a lid locking means for locking in the closed state the cartridge chamber cover, the output of the cartridge chamber cover opening and closing detecting means controlling said spool driving means and said door opening and closing drive means in response to a signal
The spool driving means when the opening operation of the cartridge chamber lid is detected by the cartridge chamber lid opening / closing operation detecting means after the rewinding of the film into the film cartridge is completed. Has a function of driving the film winding spool to close the film entrance / exit opening / closing door by the door opening / closing driving means, and the opening degree of the door becomes a predetermined opening degree during the closing operation of the film entrance / exit door. In this case, the camera has a function of releasing the lock by the lid lock means.

According to the present invention, the cartridge chamber lid is opened when the door is opened to such a degree that the leakage of light from the entrance into the cartridge can be completely prevented during the closing operation of the film entrance door of the cartridge. Since the lock is released, it is not necessary to provide an independent drive source as a drive source for the door, the cost of the camera can be reduced, and even if the cartridge chamber lid is opened. Light does not leak into the cartridge.

[0029]

[0030]

[0031]

[0032]

[0033]

[0034]

[0035]

[0036]

[0037]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

<First Embodiment> A first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is an exploded perspective view showing the film cartridge 1 and the components related to the cartridge chamber of the camera of the present embodiment configured to use the cartridge 1, and FIG. 2 is a process of loading the film cartridge. FIG. 2 is a cross-sectional view of a main part of the camera of FIG. 1 during removal.

In FIGS. 1 and 2, 1 is a film cartridge (hereinafter, simply referred to as a cartridge), 2
Is a film winding spool (hereinafter referred to as a spool) rotatably provided in the cartridge 1, 3 is an opening / closing door (hereinafter referred to as a door) provided at the film entrance / exit of the cartridge 1, and 16 is A data disk or bar code disc as a film status display means attached to one end surface of the spool 2 and rotated integrally with the spool 2 is a cartridge 1 in which the bar code on the data disk 16 is exposed. The exposed bar code is converted into a photo-reflector 14 by a window opened on the end face.
a and 14b (this photo reflectors 14a and 14b
Is fixed to the wall of the cartridge window of the camera, which will be described later), but is optically read and converted into an electric signal.

A fork insertion hole 2a formed at the upper end of the spool 2 for inserting the fork 10a (integrally formed with the fork gear 10) of the camera is opened at the center of one end surface of the cartridge 1.

A hole 2b in the other end surface of the spool 2 is opened at the center of the other end surface of the cartridge 1, and a frustoconical roller 24 rotatably provided in a cartridge chamber lid 23 described later passes through the hole and spools. Two holes 2b are inserted and fitted. Further, the door 3 is rotatable with respect to the cartridge 1 at a pair of shafts provided at the upper and lower ends of the door 3 (that is, the film entrance / exit can be opened / closed).
A hole 3a for inserting a shaft portion 4a of a door drive shaft 4 (described later) mounted on the camera is opened in the shaft portion above the door 3, and the shaft portion below the door 3 is supported. Has a hole 3b for inserting a support shaft 34a provided in a cartridge chamber lid 23 of the camera described later.

Reference numeral 19a designates a cartridge chamber formed in the camera body 19, and 23 designates a cartridge loading port of the cartridge chamber 19a which is arranged on the bottom surface of the camera and rotated about a hinge shaft 21 of the camera exterior body 20. A cartridge chamber lid that opens and closes, 10 is a fork gear that is integrally formed with the fork 10a and is rotatably arranged outside the cartridge chamber 19a, 12 is a moving electric contact piece that is fixed to the lower surface of the fork gear 10, and 13
Is a conductor pattern plate that is fixed to the outer end surface of the cartridge chamber 19a and is in sliding contact with the moving electric contact piece 12, that is, a phase print plate, and 11 is a holding plate that is fixed to the main body 19 and rotatably supports the fork gear 10. .

Reference numeral 15 is a spring fitted in the fork 10a, and when the fork 10a is inserted into the hole 2a of the spool 2, the fork 1 enters the notch 2aa of the hole 2a.
The rotation of 0 can be transmitted to the spool 2,
When the phase of the notch 2aa of the hole 2a and the phase of the spring 15 do not match, the spring 15 is drawn into the fork 10a.

Reference numeral 4 denotes a door drive shaft which has a shaft portion 4a to be inserted into the hole 3a in the upper portion of the door support shaft of the cartridge 1 and is rotatably arranged outside the cartridge chamber 19a of the camera. The sector gear 6 is fitted to the shaft portion 4d of the D-shaped cross section of the door drive shaft 4 so as to be relatively slidable only in the axial direction and can be engaged with and disengaged from the fork gear 10, and 7 is a sector gear 6. An arcuate notch 7a corresponding to the fan-shaped recess 6b is formed and a stationary member fastened to the pressing plate 8 with screws 9a and 9b. 8 is a shaft portion 4e at the upper end of the door drive shaft 4 which is rotatable. A pressing plate having a hole 8a to be inserted and fixed to the camera body.

A key-shaped protrusion 4b is formed on the outer peripheral surface of the shaft portion 4a of the door drive shaft 4, and the key groove portion, which will be described later, is provided on the peripheral wall portion of the hole 3a at the upper end of the door 3 of the cartridge 1. By inserting the protrusion 4b, relative rotation between the shaft 4 and the hole 3a becomes impossible, and the door 3 is opened and closed by the drive shaft 4.

The large-diameter ring-shaped portion 4c provided in the intermediate portion of the shaft 4 is a bearing portion and also constitutes a spring receiving portion. One end of the portion 4c abuts and the other end thereof is the sector gear 6 The sector gear 6 is always urged upward by the spring 5 that is in contact with the end face of the shaft and is fitted into the shaft portion 4d.

The stationary member 7 arranged above the sector gear 6 is a sector gear axial position restricting means having both functions of preventing and allowing the axial movement of the sector gear 6, and is shown in FIG. As described above, when the sector-shaped recess 6b of the sector gear 6 is rotationally moved to a position directly below the notch 7a of the stationary member 7, the obstacle that restricts the upward movement of the sector gear 6 disappears above the recess 6b. Is raised to a position higher than the stationary member 7 by the force of the spring 5, the meshing with the fork gear 10 is cut off, and the sector gear 6 stops at a position where it collides with a horizontal portion 31a of a cam plate 31 described later.

Further, as shown in FIG. 7, the sector gear 6
Is in mesh with the fork gear 10 and the sector-shaped recess 6b of the sector gear 6 has a notch 7a in the stationary member 7.
When the sector gear 6 is not aligned with the rotation angle position, the sector gear 6 is restricted from moving upward by the stationary member 7.
The sector gear 6 is held in mesh with the fork gear 10.

The cam plate 31 is a cartridge chamber lid 23 described later.
Is a cam for interlocking the movement of the operating member 27 for holding and releasing the closed state with the axial position of the sector gear 6. The cam plate 31 has two vertically elongated grooves 31b and 31c arranged on a vertical line, and the grooves 31b and 3c are formed.
1c includes pins 32 and 33 protruding from the camera body 19.
Are inserted so that they can slide relative to each other.
Can only move vertically. At the tip of the cam plate 31, a horizontal portion 3 extending to a position directly above the sector gear 6 is provided.
1a is formed. A groove 31d extending in the lateral direction is provided at the lowermost portion of the cam plate 31, and a pin 27a protruding from the operating member 27 is inserted in the groove 31d so as to be relatively slidable. As shown, the groove 31d includes a first horizontal groove portion 31da arranged at a lower position, a second horizontal groove portion 31dc arranged at a higher position, and the first and second horizontal groove portions 31d.
An inclined groove portion 31db connecting da and 31dc, and the vertical position of the cam plate 31 changes according to the position of the pin 27a in the groove 31d. Therefore, when the pin 27a moves to the second horizontal groove portion 31dc at a high position and the cam plate 31 is pulled down by the pin 27a, the cam plate horizontal portion 31a contacting the end surface of the sector gear 6 forks the sector gear 6. Gear 1
When the pin 27a moves into the first horizontal groove portion 31da at the lower position, the cam plate horizontal portion 31a does not generate a force to push down the sector gear 6, so that the force of the spring 5 causes the sector gear 6 to push down. 6 is
It will be pushed upwards.

The interlocking operation among the cam plate 31, the operating member 27 and the sector gear 6 will be described in more detail later.

A switch operating projection 27b is formed inside the operating member 27 near the pin 27a, and the projection 27b engages with a contact piece 30a of a switch 30 fixedly arranged in the camera. It is located in a position where Also,
The operating member 27 is formed with a spring hooking pin 27c for locking one end of a spring 28 that always urges the member 27 to the right in FIG. 2, and the other end of the spring 28 is attached to the camera body. It is locked. Further, a switch 29 is fixed to the main body, and one contact piece 29a of the switch 29 has a tip end inclined surface 25a of a lock claw 25 of a cartridge chamber lid 23 described later.
Since the contact piece 29b is restricted downward by the pin 101 fixed to the main body, the contact piece 29b is protruded to the vicinity of the inlet of the cartridge chamber so that the lid 23
When is open, it does not contact the contact piece 29a.

On the outer surface of the operation member 27, there is formed a finger hook portion 27e having irregularities so that the finger of the camera user does not slip. The finger hook portion 27e is exposed in the opening 20b of the camera exterior body 20. The operation member 27 can be moved by the length of the opening 20b in the left-right direction when the camera user puts his / her finger on the portion 27e and operates in the left-right direction in FIG.

A groove 19b extending in the longitudinal direction of the chamber 19a (that is, the axial direction of the cartridge 1) is provided in the left side wall of the cartridge chamber 19a, and extends inside and outside the cartridge chamber 19a through the groove 19b. An arm member 17a is arranged, the arm member 17a is fixed to an eject bar 17 which is axially movable in the cartridge chamber 19a, and the eject bar 17 is always provided on the opening side of the cartridge chamber 19a outside the cartridge chamber 19a. It is locked by a spring 18 that urges toward.

A shaft 23a that rotatably supports the roller 24 is provided on the inner surface of the cartridge chamber lid 23, and moves toward the operating member 27 in parallel with the surface of the lid 23. A lock claw 25 that can be used is provided.
A door support shaft / lid locking means 34 is provided which engages with a hole 3b in the shaft portion below the door 3 of the cartridge 1.

The lock claw 25 is arranged on an extension line of the contact pieces 29a and 29b of the switch 29 in a state where the cover 23 is closed, and the lock claw 25 approaches and retracts with respect to the contact piece 29a on the inner surface of the cover 23. A spring 2 that is movably supported and is locked by a spring hook 25c protruding from the lock claw 25 and a spring hook 23b protruding from the lid 23.
The lock claw 25 is biased by 6 on the side opposite to the rotary shaft 21 of the lid 23 (that is, in the protruding direction).

The door support shaft / lid locking means 34 is provided in the hole 3
a shaft 34a fitted to the shaft b, a key-like protrusion 34b protruding from the outer peripheral surface of the shaft 34a, and a lid fixed to the shaft 34a and capable of rotating integrally with the shaft 34a. A fan-shaped lock member 34c attached to 23,
It consists of

The key-shaped protrusion 34b has the same function as the key-shaped protrusion 4b of the door drive shaft 4 described above, and is inserted into the radial notch formed in the peripheral wall of the hole 3b of the cartridge 1. It is supposed to be done.

Further, the lock member 34c has the shaft 34a.
1 is rotated and urged counterclockwise in FIG. 1 about a shaft 34a by a spring 35 fitted to the spring 3a.
One end of 5 is engaged with a spring hook 23c protrudingly provided on the lid 23, and the other end of the spring 35 is engaged with the member 34d.

In the above structure, the cartridge chamber lid 23
Shaft 34a is in the hole 3b of cartridge 1
When the drive shaft 4 is rotated and the door 3 of the cartridge 1 is opened after being inserted into the cartridge, the shaft 34a is rotated clockwise from the position of FIG. 1, and at the same time, the lock member 34c is also rotated clockwise. Since the member 34c overcomes the force of the spring 35 and is caught on the camera exterior body 20 from above the lid 23, the lid 23 is locked and cannot be opened.

Next, with reference to FIGS. 9 to 11, the internal structure of the cartridge relating to the door drive shaft 4 and the support shaft 34a will be described.

The following structural portions related to the shaft portion 4a of the door drive shaft 4 and the support shaft 34a are provided on the inner wall portions of the upper and lower end portions of the cartridge 1.

FIG. 9 is a view showing a state in which the upper end plate of the cartridge 1 is partially removed in the state where the cartridge 1 is being loaded into the cartridge chamber 19a of the camera (the state corresponding to FIG. 2), and the door 3 is closed. The shaft portion 4a of the door drive shaft 4 is not inserted into the hole 3a.

A slit or groove 3aa parallel to the axial direction of the hole 3a is formed in the peripheral wall portion of the upper support shaft in which the hole 3a in the upper portion of the door 3 is formed, and the cartridge is provided in the groove 3aa. The bent distal end portion 36a of the flexible arm member 36 protruding from the inner peripheral wall surface of 1 is inserted, and the door 3 is locked in a light shielding state. The tip portion 36a is an inclined surface inclined toward the center side of the hole 3a along the axial direction of the hole 3a, and the arm member 36 is orthogonal to the longitudinal direction of the arm member 36 (that is, with respect to the axis of the hole 3a). It can be bent and moved in the radial direction).

On the other hand, a concave portion 3ab is formed on the outer peripheral wall surface of the upper support shaft in which the hole 3a is formed, and when the door 3 is opened, the tip end portion 36a of the arm member 36 is formed as shown in FIG. The door 3 is adapted to enter the recess 3ab.
It is designed to maintain the open state.

FIG. 9 shows a state in which the cartridge 1 is being loaded into the cartridge chamber 19a as shown in FIG. 2. At this time, the shaft portion 4a of the door drive shaft 4 is still in the hole 3a of the cartridge 1. Since it is not inserted, the arm member 3
The tip portion 36a of 6 enters into the groove 3aa.

FIG. 10 shows a state in which the cartridge 1 is completely loaded in the cartridge chamber 19a of the camera. The shaft portion 4a of the door drive shaft 4 is inserted into the hole 3a and the groove is inserted into the groove 3a. Since the key-shaped protrusion 4b on the outer peripheral surface of the shaft portion 4a is inserted in 3aa, the arm member 3 is formed by the protrusion 4b.
The tip portion 36a of 6 is pushed out from the groove 3aa, and the arm member 36 is bent. In this state, since the door 3 is unlocked in the light-shielded state, it can be rotated in the opening direction.

FIG. 11 shows a state in which the shaft 4a is rotationally driven in the clockwise direction and the door 3 is opened after the state of FIG. 10 in which the shaft portion 4a is inserted into the hole 3a. Sometimes, the tip end portion 36a of the arm member 36 falls into the recess 3ab by the elastic restoring force of the arm member 36, so that the upper support shaft of the door 3 is click-held by the arm member 36 so as to maintain the open position. . Further, when the door drive shaft 4 is rotated, the tip portion 3 of the arm member 36 is caused by the inclined surface of the recess 3ab.
6a is pressed and the click holding can be released.

When the shaft portion 4a is inserted into the hole 3a (that is, while the cartridge 1 is loaded in the camera), the arm member 36 is continuously bent as shown in FIG. Since the arm member 36 is left unattended, the root portion of the arm member 36 becomes fatigued and creeps, and as a result, the base portion of the arm member is plastically deformed or cracked, which causes the function of the arm member (door 3 There is a risk that an unexpected accident such as the door 3 being opened when the cartridge is taken out from the camera is lost due to the loss of the function of locking the door in the closed state or the open state).

In the camera of this embodiment, as soon as the cartridge is loaded, the fork gear 10 is driven and the door drive shaft 4 is rotated to open the door.
The concave portion 3 into which the tip 36a of the arm member 36 falls into the outer peripheral wall
Since the ab is formed, the arm member 36 is not likely to be damaged due to fatigue, and the film exposure accident due to the loss of the function of the arm member is not likely to occur.

FIG. 12 is a view in which the fork gear 10 and the movable electrical contact piece 12 fixed to the lower surface of the fork gear 10 are reversed and displayed. The contact piece 12 has two contact pieces 12a and 12b which are in sliding contact with the phase printed board 13. The contact piece 12 has pin-like projections 10b and 10c provided on the lower surface of the fork gear 10. They are fitted and fixed in the holes 12c and 12d.

FIG. 13 shows the planar shape of the conductor pattern on the phase printed board 13 and the movement loci of the moving electric contact pieces 12a and 12b (arcs indicated by dotted lines).

The moving electrical contact piece 12 is a phase printed board 13
At the same time, it constitutes a spool position detecting means for detecting the rotation angle and the rotation stop position of the spool 2.

Next, the operation of the above configuration will be described.

FIG. 2 shows that the cartridge 1 is about to be loaded in the camera, and the operating member 27 is a spring 28.
The switch 30 is in the “ON” state, the switch 29 is in the “OFF” state, the cam plate 31 is in the upward direction, the sector gear 6 is in the lower side of the stationary member 7, and the spring is 5 is in a contracted state, and the sector gear 6 is in a state of engaging with the lower surface of the stationary member 7 and meshing with the fork gear 10. The phase of the door drive shaft 4 is at the position where the door 3 of the cartridge 1 is closed. It should be noted that the cartridge 1 is shown in FIG. 2 on the assumption that the cartridge 1 is naturally dropped into the cartridge chamber when the camera is turned upside down.

Next, from the state shown in FIG. 2, the camera user manually pushes the cartridge chamber lid 23 against the spring 22 to release the hinge shaft 21.
When it is rotated around and closed, the result is as shown in FIG. Figure 2
From the state shown in FIG. 3, in the process of closing the cartridge chamber lid 23, the lock claw 25 locks the edge portion 20 of the camera exterior body 20.
Although it is once pushed to the left by a, when the closing of the lid 23 is completed, the lock pawl 25 moves to the right again by the spring 26 to lock the cartridge chamber lid 23, and the slope 25a of the lock pawl 25 switches. Since the contact piece 29a of 29 is pushed up, the contact piece 29a comes into contact with the contact piece 29b. That is, the fact that the cartridge chamber lid 23 is closed and the lock is completed can be detected by the change of the switch 29 between “OFF” and “ON”. Then, the microcomputer 40, which will be described later, advances the camera sequence as follows in response to the switch 29 being changed to "ON".

That is, the microcomputer first determines whether or not the barcode of the data disk 16 of the cartridge 1 can be detected by the photo reflectors 14a and 14b. Then, the photo reflectors 14a and 14b
When the reflected light is not obtained in any of the above, it is determined that there is no cartridge and the sequence ends. If reflected light is obtained from either of the photo reflectors 14a and 14b, the microcomputer determines that "the cartridge 1 is in the camera", and the door 3 of the cartridge 1 is set as the next sequence.
Rotate the fork gear 10 to open. At this time,
When the door 3 is closed, the spool 2 is in a locked state to maintain the film state display, but there is some play to the lock for maintaining the film state display, so within the range of the rattling. It is possible to rotate the fork gear 10 to open the door 3. Needless to say, when the door 3 is in the open state, the spool 2 is in the unlocked state and can be freely sent out or rewound.

FIG. 7 shows a state in which the door 3 is closed. When the fork gear 10 is rotated counterclockwise in FIG. 7, the sector gear 6 is rotated clockwise to be in the state shown in FIG. Since the fan-shaped recess 6b of 6 comes to a position directly below the fan-shaped notch 7a of the stationary member 7, the force of the spring 5 moves the sector gear 6 upward (in FIG. 8, the sector gear 6 is in front of the paper surface). To the side), and as a result,
As shown in FIG. 4, the mutual engagement between the fork gear 10 and the sector gear 6 is broken. The rotation stop position and the rotation amount of the fork gear 10 at this time are detected by the position of the contact piece 12a with respect to the phase printed board 13 in FIG.

In the phase printed board 13 of FIG. 13, F is "unexposed", P is "partially exposed", E is "all exposed", D
Is "developed", the fork gear 10 is in the "exposed" position of E in the cartridge loading standby state of FIG.
When the fork gear 10 is stopped, the switch 29, which is a lock completion signal of the cartridge chamber lid 23, is turned “ON”, so that when the fork gear 10 is rotated, the common patterns 13e and 13ca are provided on the contact piece. Since they are short-circuited, the patterns 13e and 13c are in the "ON" state.

Next, when the fork gear 10 is rotated counterclockwise, the contact piece 12 also rotates counterclockwise, and the contact piece 12a is rotated.
Is off because it comes off the pattern 13ca, but when the fork gear 10 is rotated by an angle α ₁ , the contact piece 12a comes into contact with the pattern 13cb again, so the pattern 1
3e and 13c are turned "ON".

Therefore, when the door 3 is opened for the second time, it can be detected that the door 3 is opened, and the sector gear 6 is cut off from the fork gear 10. Therefore, when the motor, which will be described later, is energized once when the motor is turned on for the second time and then stopped, the releasing operation of both gears is surely performed. Alternatively, even if the motor is not energized during the second "ON", the load on the sector gear 6 is reduced when the flexible arm member 36 enters the recess 3ab of the door 3 when the door 3 is opened. Since the sector gear 6 can move in the axial direction, the release operation from the fork gear 10 can be reliably performed.

Moreover, as shown in FIG. 4, the sector gear 6 is fixed by the spring 5 to the stationary member 7, the fan-shaped recess 6b and the fan-shaped notch 7.
The sector gear 6 is locked by a and.
Further, since there is a D-shaped hole in the center of the sector gear 6 and the sector gear 6 is fitted to the D-shaped cross-section shaft 4d on the upper portion of the door drive shaft 4 so as to be slidable in the axial direction, the state of FIG. Then door 3
Will be open, and will remain open,
It's locked.

Next, the cartridge removal after the filming is completed and the film is rewound on the take-up spool 2 of the cartridge 1 will be described.

FIG. 4 shows an initial state in which the operating member 27 is moved, and a state in which the tip end 27d of the operating member 27 is in contact with the tip end 25b of the lock claw 25. In this state, the switch 30 is changed from "ON" to "OFF", and other states do not change. Therefore, when the operating member 27 is operated during film winding or rewinding, the switch 30 changes from "ON" to "OF".
When it is changed to F ″, the film feeding motor is immediately stopped to stop the winding or rewinding. If the switch 30 is not provided, the member 27 is operated when the operating member 27 is operated. As shown in FIG. 6, the cam plate 31 is moved downward to move the fork gear 10
And the sector gear 6 are engaged with each other, the door 3 of the cartridge 1 is closed while the film is pulled out from the cartridge 1, and the door 3
Since it causes the opening of the cartridge, there is a problem that the film is scratched or the cartridge is destroyed. From the state of FIG.
When is moved, it becomes as shown in FIG. In other words, the pin 27 a of the operating member 27 moves from the groove 31 da of the cam plate 31 to the groove 31 a.
The cam plate 3 moves to db and further to the groove 31dc.
1 moves downward, and the horizontal portion 31a pushes down the sector gear 6 downward to engage with the fork gear 10. However, although the tip 27b of the lock claw 25 is slightly pushed by the tip 27d of the operation member 27, the lock state is not released and the switch 29 is in the "ON" state or the downward movement of the cam plate 31 is completed in the state of FIG. It can be maintained. That is, the sector gear 6 and the fork gear 1
The switch 29 is set to maintain the "ON" state until the engagement of 0 is completed.

Next, when the operating member 27 is further moved and brought into the state of FIG. 6, the switch 29 is turned from ON to OFF, and the microcomputer advances the taking-out sequence of the cartridge 1. That is, when the switch 29 is turned "OFF", the fork gear 10 and the sector gear 6 are set in the meshed state by the horizontal portion 31a of the cam plate 31 in the phase of FIG. 8, so that the fork gear 10 is rotated clockwise. Then, the state shown in FIG. 7 is obtained, and the phase between the sector-shaped concave portion b of the sector gear 6 and the sector-shaped cutout portion 7a of the stationary member 7 changes, so that the sector gear 6 does not push down the horizontal portion 31a of the cam plate 31 and the stationary member. It digs under 7 and is pressed against the stationary member 7 by the spring 5, and is maintained in the state of FIG. At the same time, since the shaft portion 4d of the door drive shaft 4 fitted in the D-shaped hole 6a of the sector gear 6 is rotated, the door 3 is closed.

Since the lock claw 25 is pushed by the tip 27d of the operating member 27, the lock claw 25 locks the cartridge chamber cover 23 in the state shown in FIG. Disappear. When the fork gear 10 is driven, the sector gear 6 rotates, the door drive shaft 4 also rotates, and the closing motion of the door 3 causes the lock member 34 to rotate in the counterclockwise direction and the lock member 34 to rotate.
When c is retracted from the wall 23d of the cartridge chamber lid 23, the cartridge chamber lid 23 is unlocked, and when the lock of the cartridge chamber lid 23 is completely released, the cartridge 22 is rotated about the hinge shaft 21 by the spring 22. The chamber lid 23 rotates and opens. As described above, with respect to the timing of unlocking the cartridge chamber lid 23 by the lock member 34, there is a risk that the cartridge chamber lid 23 is unlocked in a state where the door 3 is not completely closed due to tolerance or rattling. However, in the camera of this embodiment, the door 3 is set so that the angle α ₂ is set as the tolerance of the stop position indicating “exposed” E as shown in the figure.
Is a predetermined opening, that is, a light-shielding guaranteed range is set, and the lock of the cartridge chamber lid 23 is unlocked by rotating the fork gear 10 after closing the door 3 to the light-shielding guaranteed range. Therefore, it is possible to prevent light rays from leaking into the cartridge 1 taken out from the camera and prevent an accident such as a lock failure due to damage to the arm member 36 in the cartridge 1.

Here, regarding the rotation stop position control of the fork gear provided in the camera of the present embodiment in order to achieve the above-mentioned function, the conductor pattern and the rotational movement contact piece 12 on the phase printed board 13 of FIG. This will be described using the relative positional relationship with.

In the conductor pattern on the phase printed board 13 provided in the camera of this embodiment, the fork stop phase at the completion of film rewinding is compared with the stop phase determined as the film state display in the cartridge. The phase is set to be shifted by the rotation angle for closing the door 3 of the cartridge. That is, as shown in FIG. 13, if the rewound cartridge is, for example, "all frames exposed", the fork gear is stopped with the moving contact piece 12 being in contact with the patterns 13e and 13ca at the stop angle position E. Need to let.

However, since the camera of this embodiment has a structure in which the door 3 of the cartridge 1 is opened and closed by the fork gear 10, the fork gear 10 is used to close the door 3.
When is rotated, the contact pieces 12a and 12b are displaced from the position E at which they should originally be stopped. Therefore, in the phase printed board 13 of the camera of the present embodiment, the stop phase of the fork gear 10 after the film rewinding is completed is stored in the microcomputer, and for example, the stop position E when "all frames have been exposed" is displayed.
Is stored in the microcomputer, and the phase printed board 1 is controlled by the microcomputer to have a position E ′ that is counterclockwise shifted by an angle α _{1 with} respect to the phase that matches the stored content, so that the position E ′ becomes E ′.
The conductor pattern on 3 is designed.

Therefore, when the operation member 27 is operated and both the switch 30 and the switch 29 are turned "OFF", a signal for opening the cartridge chamber lid is generated, and the motor described later is rotated to complete the film rewinding. After that, when the contact pieces 12a and 12b fixed to the fork gear 10 become E ', the motor is stopped by the microcomputer and the cartridge chamber lid opening operation standby state is set.
After that, when the operation member 27 of the cartridge chamber lid 23 is opened and both the switches 29 and 30 are turned "OFF", the fork gear 10 is rotated again to bring the contact pieces 12a and 1 into contact.
When 2b becomes E, the door 3 of the cartridge is completely closed and the setting of the film state display determined by the phase of the spool 2 of the cartridge 3 is completed.

Further, in addition to the stop position E of "all frame exposed" display, the stop position F of "unexposed" display when the cartridge is taken out without taking a single image as shown in FIG. F'phase, P'phase for the stop position P in the case of "partially exposed" display, and "developed"
The above operation becomes possible by forming a pattern in a phase shifted by an angle α _{1 from} the set phase of the film state display, such as D ′ phase with respect to the stop position D in the case of display. Further, it is possible to reduce the input to the microcomputer or the like by setting the same pattern as the shifted phase, instead of setting as a separate signal for each shifted phase as shown in FIG. That is, FIG.
3, when the fork gear is rotated in the rewinding direction, the contact piece 12 rotates counterclockwise in the range of 12a and 12b indicated by the broken line. When the contact piece 12 is stopped at the position E ′, the contact piece 12 is stopped at the position E ′ by stopping the fork gear 10 at the second “ON” after the signal that detects the position P. Is possible. Of course, it goes without saying that the same can be realized in the case of other phases.

When the fork gear 10 is operated to complete the setting of the film state display, the cartridge 1
By interlocking with the fork gear 10 via the door drive shaft 4 that drives the door 3 and the sector gear 6,
It is possible to set the film status display and close the door 3 immediately before taking out the cartridge.

Therefore, from the completion of film rewinding,
When the data disk 16 is rotated by applying vibration or the like to the camera until the cartridge is taken out, and as a result, the film status display changes, the memory input to the microcomputer and the contact piece The result of the phase detection is collated, and the fork gear 10 is driven when the switch 30 which is the operation start signal of the operation member 27 changes from “ON” to “OFF”. It is possible to correct the stop position of the disk 16) correctly.

Next, the partial configuration and function of the electrical control system mounted on the camera of the present embodiment will be described with reference to FIGS. 14 to 17.

FIG. 14 is a schematic diagram showing only a portion related to film feeding and control of a spool and a door of a cartridge in the electrical structure mounted on the camera of this embodiment. In the figure, 40 is the microcomputer (hereinafter referred to as the microcomputer) mounted on the camera, 41 is a motor for driving the fork gear 10 and film feeding, and 42 is the motor 4
A motor drive circuit for driving 1 is a known photoreflector for detecting film feeding, which is provided for detecting the amount of movement of the film in the camera, and 14a and 14b.
Is a photo reflector for detecting the phase of the bar code on the data disk 16 in the cartridge 1 to detect the state of the film in the cartridge 1, 29 and 30 are the switches, 13 is a signal on the phase printed board 13. Conductor patterns 13a to 13d and grounding conductor pattern 1
Reference numeral 3e represents a fork gear rotation position detecting means, 44 is a battery mounted on the camera, and 301 is an LCD display which is a display means of the camera including a warning display. 302
Is a release switch to start shooting operation,
Reference numeral 303 is a manual rewind switch for performing forced rewind.

FIG. 15 shows that the cartridge 1 is loaded into the cartridge chamber 19a with the cartridge chamber lid 23 opened, the cartridge chamber lid 23 is closed, the door 3 is opened, and the film is fed out. 6 is a flowchart of the control operation of the microcomputer 40 until the film is automatically set in the aperture and the film state is stored. Each step of the flowchart will be described below.

[Step 101] It is determined whether or not the switch 30 is on, and if it is on (that is, the operating member 27 is not operated to the left from the positions shown in FIGS. 2 and 3), the process proceeds to step 102. .

[Step 102] It is determined whether or not the switch 29 is on, and if it is on (if the lid 23 is closed), the routine proceeds to step 103.

[Step 103] Photo Reflector 1
Based on the output signals of 4a and 14b, it is determined whether or not the cartridge is loaded. If it is determined that the cartridge is loaded, the process proceeds to step 104, and if it is not loaded, the operation ends (END).

[Step 104] Motor Drive Circuit 42
The motor 41 is rotated in the film rewinding direction via. As a result, the fork gear 10 is rotationally driven in the film rewinding direction, the door 3 of the cartridge 1 is opened, and the film can be fed. Go to step 105.

[Step 105] Photo Reflector 1
The film information on the data disk 16 is read from the output signals of 4a and 14b. As a result, the cartridge 1
The microcomputer 40 reads the sensitivity of the film therein, the number of unexposed images, the state of the film, and the like. When the reading of the data is completed, the process proceeds to step 106.

[Step 106] It is determined whether the state of the film read by the microcomputer 40 is an unexposed film. If it is not an unexposed film, <A> in FIG.
If the film is an unexposed film, the process proceeds to step 107 to perform a shooting preparation operation.

[Step 107] Motor Drive Circuit 42
The motor 41 is driven in the film winding direction via the. As a result, the fork gear 10 is rotationally driven in the film feeding direction, the film is fed from the cartridge 1, and the leading end of the film is wound around the film winding spool of the camera. Go to step 108.

[Step 108] Whether or not the first frame is positioned at the aperture is determined from the output signal of the photoreflector 43, and if it is determined that the first frame is positioned at the aperture, the process proceeds to step 109.

[Step 109] The energization of the motor 41 is stopped, and the process proceeds to step 110. [Step 110] Since the camera is ready for shooting,
If the release switch 304 is turned “ON”, the shooting is started and the process proceeds to step 113.
If 02 is not "ON", the process proceeds to step 111.

[Step 111] The state of the manual rewind switch 305 is discriminated, and if "ON", the process proceeds to step 112, and if not "ON",
It returns to step 110 again.

[Step 112] Since the film is rewound in a state where no photographing operation is performed in the unexposed film state, the film state is stored in the microcomputer as "unexposed" and the process proceeds to <B> in FIG. .

[Step 113] The brightness of the object is measured and input to the microcomputer, and the process proceeds to step 114.

[Step 114] Based on the result of photometry in step 113, a microcomputer calculates and shutter aperture control is performed to expose the film.
Go to 5.

[Step 115] The hoisting motor 41 is energized in the hoisting direction by the drive circuit 42, and the film detecting photoreflector 43 stops the energization of one frame, and the process proceeds to step 116.

[Step 116] When the photographing of the final frame is completed, the process proceeds to step 117, and when the final frame is not reached, the process proceeds to step 118.

[Step 117] Since the filming of the last frame is completed, the film state is stored in the microcomputer as "exposed", and the process proceeds to <B> in FIG.

[Step 118] Release Switch 3
If 04 is "ON", the process proceeds to step 113, and the photographing operation is performed. If "04" is not turned on, step 119 is performed.
Go to.

[Step 119] If the manual rewind switch 305 is turned "ON", the process is forcibly rewound, and the process proceeds to step 120. If not, the process returns to step 118.

[Step 120] At least one frame of the unexposed film has been exposed, and since the photographing of the last frame has not been completed, the film state is "partially exposed".
Is stored in the microcomputer and the process proceeds to <B> in FIG.

By the above control operations, the cartridge loading detection, the film entrance / exit door opening, the film state detection, the film auto-loading, the photographing operation and the film state recording before the start of rewinding can be performed.

FIG. 16 is a flowchart of the microcomputer 40 for rewinding the film. Even if the operating member 27 is accidentally operated during the film rewinding operation, the door 3 of the cartridge 1 is closed. This shows a function capable of preventing an accident such as a film being photographed being scratched or the cartridge chamber lid 23 being opened and the film being exposed to light.

[Step 201] In FIG. 15, is the manual rewind switch 305 turned on?
Alternatively, when the photographing of the final frame is completed, the microcomputer 40 operates the control circuit 42, and the motor is energized in the rewinding direction as the auto rewind to rewind the film.

[Step 202] While the film rewinding operation is being monitored by the film detecting photo reflector 43, it is judged whether or not the rewinding is completed. If not completed, the process proceeds to step 203, and when completed, the step 2
Go to 08.

[Step 203] The state of the switch 30 is detected in order to determine whether or not the operating member 27 has been operated during rewinding. Switch 30 is "OFF"
If so, the operation proceeds to step 204,
If it is not "OFF", the process returns to step 202.

[Step 204] Assuming that the operation member 27 is operated during the rewinding of the film, the motor energization is stopped.

[Step 205] In order to notify that the operation is incorrect, the warning display on the LCD display 301 is set to "O".
N "

[Step 206] Whether or not the operation of the operating member 27 has been stopped is detected by the switch 30. If the operation is stopped, the switch 30 will not be "OFF", and the process proceeds to step 207. "OF
If “F” remains, the process cannot proceed from step 206.

[Step 207] Since the operation of the operation member 27 has been stopped, the warning display on the LCD display 301 is set to "OFF", and the rewinding is restarted in step 20.
Return to 1.

[Step 208] It is determined again by detecting the switch 30 whether or not the operating member 27 is erroneously operated. When the switch 30 is "OFF", it is an erroneous operation, and the process proceeds to step 204 and "OFF".
If not, the process proceeds to step 209.

[Step 209] It is determined whether or not the phase of the moving contact piece 12a of the pattern on the phase printed board 13 has a predetermined value with respect to the film state stored in the microcomputer. If not, the process returns to step 208.

[Step 210] The energization of the motor 41 is stopped, and the process proceeds to step 211.

[Step 211] The film is taken out and displayed on the LCD display.

As described above, when the operation member 27 is operated during the rewinding of the film and the setting of the film state, the motor is immediately stopped and a warning is displayed on the LCD display to inform that the operation is erroneous. I can do it. In the case of the present embodiment, the LCD display is used as the warning display, but it is needless to say that it is more effective if there is a warning sound by a sounding body or a warning light blinks by an LED or the like.

FIG. 17 is a flow chart showing the control operation of the microcomputer 40 from the time when the film is rewound into the cartridge 1 to the time when the lid 23 is opened. Each step of the flowchart will be described below.

[Step 301] It is determined whether or not the switch 30 is off (whether or not the operating member 27 has been moved to the left side from the positions of FIGS. 2 and 3), and if it is off, the process proceeds to step 302.

[Step 302] The phase printed board 13
The rotation stop position of the fork gear 10 is detected by detecting at which position in the above pattern the moving contact piece 12a is stopped.

[Step 303] It is determined whether or not the rotation stop position of the fork gear 10 is a predetermined position with respect to the film state display stored in the microcomputer. If it is not the position, the process proceeds to step 308.

[Step 304] It is determined whether or not the switch 29 is off. If it is off, the process proceeds to step 305, and if it is not off, the process returns to step 301.

[Step 305] Motor Drive Circuit 42
The motor 41 is rotated in the film feeding direction via.

[Step 306] The phase printed board 13
The output signal corresponding to the position of the contact piece 12a is detected above, and it is determined whether the signal has a predetermined value (whether the rotational position of the fork gear 10 has reached the predetermined position). If so, the process proceeds to step 307. If no, the process is repeated until yes. That is, the spool 2 of the cartridge 1
The spool 2 is rotated until the phase becomes a predetermined phase, and the door 3 is closed at the same time.

[Step 307] The energization of the motor 41 is stopped.

[Step 308] The LCD display means 301 of FIG. 14 is caused to display a warning. That is, the cartridge 1 is rotated due to the vibration applied to the camera, etc., causing the fork gear 10 to rotate from a predetermined stop position for the film state display stored in the microcomputer.
It warns that the lid 23 cannot be opened because the phase of the spool 2 of 3 is a phase that does not match the contents of the microcomputer. It goes without saying that this warning can be displayed by an LCD display device, a sounding body, or the like. Go to step 309.

[Step 309] It is determined whether or not the switch 30 is on, and if it is on (if the operating member 27 is leftward from the positions shown in FIGS. 2 and 3 and is not operated), step 310 If it is not on, proceed to step 314.

[Step 310] Motor Drive Circuit 42
The motor 41 is rotated in the film rewinding direction via. Proceed to step 311.

[Step 311] The phase printed board 13
The position of the upper contact 12a is detected to determine the rotational position of the fork gear 10. If the rotational position reaches a predetermined position that matches the contents of the microcomputer, the process proceeds to step 313. If not, the step proceeds to step 313. Return to 308.

[Step 312] The energization of the motor 41 is stopped. Go to step 313. [Step 313] Stop the warning display by the display means 301 and return to step 301.

[Step 314] If the motor is energized, the energization is stopped and the process returns to step 308.

As described above, the setting of the film state is completed, and the operation member 2 is used when the cartridge is taken out from the camera.
When 7 is operated, each time it is operated, it is determined whether or not the set of the film state matches the state stored in the microcomputer. If it is correct, the lock of the cartridge chamber lid is released, and if it is not correct, a warning is displayed. It is possible to stop the operation of the operation member 27 and drive the fork gear again when the operation member 27 is not operated to reset the film state set to a state that matches the memory of the microcomputer.

<Second Embodiment> A camera according to a second embodiment of the present invention will be described with reference to FIGS.
Most of the mechanical structure of the camera of this embodiment is the same as that of the first embodiment, and the electrical configuration of the camera of this embodiment is the same as that of the camera of the first embodiment. However, this embodiment is different from the camera of the first embodiment in that the pattern of the phase printed board and the drive system of the door 3 of the cartridge 1 are used. To do.

In FIGS. 18 and 19, 37 is a fork gear, which is driven by the motor 41 and can be driven by being connected to the spool 2 of the cartridge as in the first embodiment. Reference numeral 38 denotes a sector gear, which is rotatable about the shaft 38b as in the sector gear 6 of FIG. 1 and is urged by the spring 5 of FIG. The sector gear 38 has a fan-shaped recess 38 similar to the sector gear 6.
When there is a, and it becomes a phase (FIG. 18) in which it engages with the engagement member 43, it moves to the front side with respect to the paper surface, the fork gear 37 and the sector gear 38 are disengaged, and the phase in which they do not engage with the member 43 is reached. In FIG. 19, the fork gear 37 and the sector gear 38 mesh with each other because the fork gear 37 and the sector gear 38 move toward the back side with respect to the paper surface. Reference numeral 39 denotes a gear that is designed to rotate integrally with the door drive shaft 4 shown in the first embodiment, and has a click spring 41 that has an arm 40 that abuts a pin 44 or 45 provided on the camera body. ,
The arm 40 rotates integrally with the gear 39. Click spring 4
1 is hung on a pin 40a of the arm 40 and a pin 46 provided on the camera body.
It is configured to urge either of the nine states.

The sector gear 38 always keeps meshing with the gear 39 at any of the upper and lower positions of the sector gear 38. FIG. 18 corresponds to a state in which the film entrance / exit door 3 of the cartridge 1 is opened, and the sector gear 38 is not meshed with the fork gear 37.

Therefore, the state is such that the film can be fed out or rewound freely, or the film rewinding is completed and the film rewinding is completed and the cartridge is ready to be taken out. If it is assumed that the state of FIG. 18 is the film rewinding completed state, when the camera user operates the operation member 27 in order to take out the cartridge from the camera, the cam plate 42 moves to the back of the paper surface. Side of the fork gear 37 by pushing the sector gear 38 to the inner side of the drawing and moving to the fork gear 37.
And the door drive shaft 4 (see FIG. 1) are connected, and the sector gear 38 is moved to the lower side of the engagement member 43. Then, as in the first embodiment, when the switch 30 and the switch 29 are turned “OFF”, the motor is driven to rotate the fork gear 37 counterclockwise. This rotation angle will be described with reference to the diagram of the phase printed board of FIG. For example, when filming is finished up to the final screen of the loaded film and rewinding is performed, after rewinding is completed,
The fork gear 37 is stopped at the phase E ″ which is deviated by the angle β _{1 with} respect to the “exposed” display position E. When the switch 30 and the switch 29 are both turned "OFF" to drive the motor and rotate the fork gear 37 counterclockwise from the phase E "to the phase E, the film of the data disk 16 in the cartridge is rotated. When the status display is completed, the door 3 of the cartridge 1 is also closed. In the case of the second embodiment, when the camera user operates the operation member 27 to open the cartridge chamber lid 23 after the fork gear has stopped at a phase shifted from the predetermined film state phase after the rewinding is completed, Since the switch 30 and the switch 29 are turned off, the rotation direction for setting the film state phase is the same as the direction for rotating the fork gear in the rewinding direction when stopped at the first shifted phase. The rotation angle β ₁ is more accurate, and since the door drive shaft 4 is provided with the click spring 41, it can be operated accurately in shielding the film entrance / exit and completing the opening of the door 3.

<Third Embodiment> A third embodiment of the present invention will be described with reference to FIGS.

FIG. 21 is an exploded perspective view of the structure related to the cartridge chamber of the camera of the third embodiment of the present invention, and a diagram showing a film cartridge loaded in the cartridge chamber, in which the door of the film cartridge is in an open state. 22 shows an exploded perspective view of the third embodiment and a film cartridge loaded in the cartridge chamber, in which the door of the film cartridge is open and the operation member is operated. 23 is a state in which the sector gear is driven, and FIG. 23 is an exploded perspective view of the third embodiment and a film cartridge loaded in the cartridge chamber, in which the door of the film cartridge is closed and the cartridge is closed. FIG. 24 shows the state in which the chamber lid is unlocked, while loading the cartridge into the cartridge chamber of the camera of the third embodiment of the present invention, or FIG. 25 is a cross-sectional view of a main part of the camera showing a state where the cartridge is being taken out. FIG. 25 shows a state where the cartridge chamber of the camera of the third embodiment of the present invention is loaded with the cartridge and the cartridge chamber lid is closed. FIG. 26 is a cross-sectional view of an essential part of the camera showing the state immediately after the operation member 27 starts the opening start operation of the cover from the closed state of the cartridge chamber cover of FIG.
FIG. 27 is a cross-sectional view of an essential part of the camera showing a state where the operation member 27 is further operated in the opening direction after the state of FIG. 28, and FIG. 28 is a state where the operation member 27 is further extended after the state of FIG. FIG. 29 is a sectional view of a main part of the camera showing a state of being operated in the opening direction, FIG. 29 is a diagram showing an example of a circuit of a third embodiment of the present invention, and FIG. 3 is a flowchart showing a sequence for taking out the.

In these figures, the same components as those in the above embodiment are designated by the same reference numerals.

In these figures, 1 is a film cartridge (hereinafter simply referred to as a cartridge), 2 is a film winding spool (hereinafter referred to as a spool) rotatably provided in the cartridge 1, 3 Is an opening / closing door (hereinafter referred to as a door) provided at the film entrance / exit of the cartridge 1, and 16 is a data disk as a film status display means attached to one end surface of the spool 2 and rotated integrally with the spool 2. The bar code disks 1a and 1b are photo reflectors 14a and 14b for optically reading the bar code on the data disk 16 and converting it into an electric signal (the photo reflectors 14a and 14b are walls of a cartridge chamber of a camera to be described later). Fixed to the cartridge 1)
Is a window opened at one end surface of the.

A fork insertion hole 2a formed at the upper end of the spool 2 for inserting the fork 201a of the camera is opened at the center of one end surface of the cartridge 1.

A hole 2b on the other end surface of the spool 2 is opened in the center of the other end surface of the cartridge 1, and a frustoconical roller 24 rotatably provided on the cartridge chamber lid 23 passes through the hole and spools. Two holes 2b are inserted and fitted. Further, the door 3 is rotatable with respect to the cartridge 1 at a pair of shafts provided at the upper and lower ends of the door 3 (that is, the film entrance / exit can be opened / closed).
A hole 3a for inserting a shaft portion 4a of a door drive shaft 4 (described later) mounted on the camera is opened in the shaft portion above the door 3, and the shaft portion below the door 3 is supported. Has a hole 3b for inserting a support shaft 34a provided in a cartridge chamber lid 23 of the camera described later.

Reference numeral 23 denotes a cartridge chamber lid which is arranged on the bottom surface of the camera and which is rotated about the hinge shaft 21 of the camera exterior body 20 to open and close the cartridge loading port of the cartridge chamber 19a of the camera body 19, and 201 is a fork. 201a is integrally molded with the fork 201a
The fork gear is rotatably arranged outside the cartridge chamber 19a for driving the spool 2 to rotate, and the moving electric piece 12 is fixed. Two
Reference numeral 02 denotes a conductor pattern 202 fixed to the outer end surface of the cartridge chamber 19a and slidingly contacting the moving electric piece 12.
a phase printed board having a, 202b, 202c, 202d, and 202e, and a spring 15 is incorporated in the fork 201a, and the fork 201a is inserted into the hole 2a of the spool 2.
Is inserted into the cutout portion 2aa of the hole 2a so that the rotation of the fork gear 201 can be transmitted to the spool 2. When the phase of the cutout portion 2aa of the hole 2a and the phase of the spring 15 do not match, When the fork 201a is inserted into the hole 2a with 15 being pushed into the fork 201a and the notch 2aa and the spring 15 are in phase, the spring force of the spring 15 causes the notch 2aa and the notch 2aa. Spring 1
5 and 5 come into engagement.

Reference numeral 4 denotes a door drive shaft which has a shaft portion 4a to be inserted into the hole 3a in the upper portion of the door support shaft of the cartridge 1 and is rotatably arranged outside the cartridge chamber 19a of the camera. It is a sector gear that is fitted slidably only in the axial direction with respect to the shaft portion 4d of the D-shaped cross section of the door drive shaft 4 and that can be engaged with and disengaged from the drive gear 203 only.
It doesn't mesh with. 7 is sector gear 2
04 is a stationary member formed with an arcuate notch 7a corresponding to the door-shaped recess 204b and fastened to the pressing plate 8 with screws 9a and 9b, and 8 is a shaft portion 4e at the upper end of the door drive shaft 4. A pressing plate having a hole 8a that can be inserted therein and fixed to the camera body.

A key-shaped protrusion 4b is formed on the outer peripheral surface of the shaft portion 4a of the door drive shaft 4, and the protrusion is formed in the key groove portion provided in the peripheral wall portion of the hole 3a at the upper end of the door 3 of the cartridge 1. 4b
Is inserted, the relative rotation between the shaft 4 and the hole 3a becomes impossible, and the door 3 is opened and closed by the drive shaft 4.

The large-diameter ring-shaped portion 4c provided in the middle portion of the shaft 4 serves as a bearing portion and also constitutes a spring receiving portion. One end of the portion 4c is abutted and the other end thereof is the sector gear 204. The sector gear 204 is constantly urged upward by the spring 5 which is in contact with the end face of the shaft 5 and is fitted into the shaft portion 4d.

The stationary member 7 arranged above the sector gear 204 is a sector gear axial position restricting means having both functions of blocking and allowing the axial movement of the sector gear 204, and is shown in FIG. Similarly to the above, the door-shaped recess 204 b of the sector gear 204 is formed in the cutout 7 of the stationary member 7.
Since the obstacle that restricts the upward movement of the sector gear 6 is not located above the concave portion 204b when the sector gear 6 is rotationally moved to a position immediately below a, the sector gear 6 is raised to a position higher than the stationary member 7 by the force of the spring 5. The engagement with the drive gear 203 is cut off, and the sector gear 204 stops at a position where it collides with a horizontal portion 31a of a cam plate 31 described later.

As shown in FIG. 23, the sector gear 204 is in mesh with the drive gear 203, and the door-shaped recess 204b of the sector gear 204 has a stationary member 7.
When it is in a rotation angle position that is not aligned with the notch 7a of
The sector gear 204 is restricted from moving upward by the stationary member 7, and the sector gear 204 is driven by the drive gear 2.
It is kept in mesh with 03.

The cam plate 31 is a cartridge chamber lid 23 described later.
Is a cam for interlocking the movement of the operation member 27 for holding and releasing the closed state with the axial position of the sector gear 204. 2 on the cam plate 31 aligned on the vertical line
The vertical grooves 31b and 31c are opened, and the pins 32 and 33 projecting from the camera body 19 are slidably inserted into the grooves 31b and 31c. Therefore, the cam plate 31 extends vertically. Only movable. A horizontal portion 31a extending to a position directly above the sector gear 204 is formed at the tip of the cam plate 31. A groove 31d extending in the lateral direction is provided at the lowermost portion of the cam plate 31, and a pin 27a protruding from the operating member 27 is inserted in the groove 31d so as to be relatively slidable. As shown, the groove 31d connects the first horizontal groove portion 31da arranged at a low position, the second horizontal groove portion 31dc arranged at a high position, and the first and second horizontal groove portions 31da and 31dc. Inclined groove 31db
And the pin 27a in the groove 31d.
The vertical position of the cam plate 31 changes depending on the position. Therefore, the pin 27a moves to the second horizontal groove portion 31dc at a high position, and the cam plate 31 moves to the pin 27a.
When it is pulled down by the cam gear, the cam plate horizontal portion 31a, which is in contact with the end surface of the sector gear 204, moves to the sector gear 204.
Push down to the position where it meshes with the fork gear 10,
On the contrary, when the pin 27a moves into the lower first horizontal groove portion 31da, the cam plate horizontal portion 31a moves to the sector gear 20.
Since the force to push down 4 is not generated, the sector gear 204 is pushed up by the force of the spring 5.

The interlocking operation among the cam plate 31, the operating member 27 and the sector gear 204 will be described in more detail later.

The operating member 27 is formed with a spring hooking pin 27c for locking one end of a spring 28 that always biases the member 27 to the right side, and the other end of the spring 28 is attached to the camera body. It is locked. Further, a switch 29 is fixed to the main body, and one contact piece 29a of the switch 29 has a tip end inclined surface 25a of a lock claw 25 of a cartridge chamber lid 23 described later.
Since the contact piece 29b is restricted downward by the pin 101 fixed to the main body, the contact piece 29b is protruded to the vicinity of the inlet of the cartridge chamber so that the lid 23
When is open, it does not contact the contact piece 29a.

The lock claw 25 is arranged on an extension of the contact pieces 29a and 29b of the switch 29 in a state where the lid 23 is closed, and the lock claw 25 approaches and retracts with respect to the contact piece 29a on the inner surface of the lid 23. A spring 2 that is movably supported and is locked by a spring hook 25c protruding from the lock claw 25 and a spring hook 23b protruding from the lid 23.
The lock claw 25 is biased by 6 on the side opposite to the rotary shaft 21 of the lid 23 (that is, in the protruding direction).

The door support shaft / lid locking means 34 is provided in the hole 3
a shaft 34a fitted to the shaft b, a key-like protrusion 34b protruding from the outer peripheral surface of the shaft 34a, and a lid fixed to the shaft 34a and capable of rotating integrally with the shaft 34a. A door-shaped lock member 34c attached to 23,
It consists of

The key-shaped protrusion 34b has the same function as the key-shaped protrusion 4b of the door drive shaft 4 described above, and is inserted into the radial notch formed in the peripheral wall of the hole 3b of the cartridge 1. It has become so.

Further, the lock member 34c has the shaft 34a.
1 is rotated and urged counterclockwise in FIG. 1 about a shaft 34a by a spring 35 fitted to the spring 3a.
One end of 5 is engaged with a spring hook 23c protrudingly provided on the lid 23, and the other end of the spring 35 is engaged with the member 34d. Therefore, the state is changed from FIG. 21 to FIG. 23, that is, the sector gear 204 is rotated counterclockwise by the drive gear 203, the door drive shaft 4 is also rotated counterclockwise, and the door 3 is in the closed state satisfying the light shielding property. The stopper surface 34e of the lock member 34, the shaft 23c of the cartridge chamber lid 23
23, and in the state of FIG. 23, the door-shaped lock member 34c does not project from the end surface 23d of the cartridge chamber lid 23, so that the cartridge chamber lid 23 is opened, but the lock member 34 is urged by the spring 35. The phase between the unlocked state of the cartridge chamber lid 23 and the closed state of the cartridge door 3 can be maintained even when the cartridge chamber lid 23 is opened.

Reference numeral 203 denotes a drive gear which is interlocked with a gear system (not shown) by a motor described later and can rotate the shaft 203b. The drive gear 203 is rotatably supported by the main body, and the sector gear 204 moves downward. Gear 2 when
03a and the gear 204c are in mesh with each other, and are configured so that they can be rotationally driven in the forward and reverse directions by the drive gear 203.

In the above structure, the cartridge chamber lid 23
Is closed, and the lock claw 25 allows the cartridge chamber lid 23 to be closed.
Is temporarily locked, the slope 25a at the tip of the lock claw 25
By pushing up the contact piece 29a,
When the switch 29 is turned on when the contact piece 29b contacts with the contact piece 29b, the photo reflectors 14a and 14b detect the bar code disk 16 by the microcomputer 40 described later. If the detection is possible, it means that the cartridge 1 is “present”, and therefore the motor 303 described later is rotated to drive the drive gear 203. When the motor 303 is a dedicated motor, the switch 30 of FIGS. 24 to 29 is unnecessary, so the sequence of FIG. 30 described later shows an embodiment when the dedicated motor is used. In addition, since many cameras usually have a lens barrel driving motor, the lens barrel driving motor may also be used. Since the transmission method from the lens barrel driving motor to the shaft 203b of the drive gear 203 is a conventionally known technique, description thereof will be omitted here, but in this case, the lens barrel control is performed by the signal of the switch 30 in FIGS. Occasionally, an erroneous operation is prevented when the operation member is operated. When the drive gear 203 is rotated counterclockwise,
At the same time that the sector gear 204 rotates clockwise, the door drive shaft 4 also rotates clockwise, and the door 3 is opened. Further, the clockwise rotation of the door 3 is also transmitted to the hole 3b, and the convex portion 34b of the shaft 34a of the lock member 34, which is engaged with the hole 3b, rotates clockwise against the bias of the spring 35, and is integrally molded. The lock portion 34c is the end surface 23 of the cartridge chamber lid 23.
It becomes a convex state from d and is caught on the end surface 20 of the exterior cover,
The cartridge chamber lid 23 is locked. In this state, the door-shaped notch portion 204b of the sector gear 204 is in a phase in which it engages with the door-shaped portion 7a of the stationary member 7, so that the sector gear 204 is pushed up by the spring 5 and engages with the stationary member 7. As a result, the door drive shaft 4, the door 3 and the lock member 34 are maintained in the state of FIG. 25, and the engagement between the drive gear 203 and the sector gear 204 is broken as shown in FIG. hand,
Even if the drive gear 203 is interlocked with the lens barrel drive system, there is no problem even if the drive gear 203 moves in the state of FIG. After that, the film photographing in the cartridge 1 is completed, and the state of FIG. 21 is maintained until the rewinding of the film is completed. Therefore, when the operation member 27 is slid to the left in FIG. 25, that is, toward the cartridge chamber lid 23 in order to take out the cartridge 1, the state is changed from FIG. 26 to FIG. 27 to FIG.

28 and 22 show the same state, the tip 27d of the operating member 27 pushes the tip 25b of the lock pawl 25, and the cartridge pawl 2 by the lock pawl 25 is pushed.
3 is unlocked, the pushing up of the contact piece 29a by the beveled surface 25a of the tip also disappears, and the switch 29 is set to "OF
Further, when the operating member 27 slides, the pin 27a moves the cam groove of the cam plate 31 into 31da → 31db →
By moving to 31 dc, the cam plate 31 is pushed down. By the downward movement of the cam plate 31, the horizontal portion 31a pushes the sector gear 204 downward, and the interlocking state is formed in which the horizontal gear 31a meshes with the drive gear 203.

However, the state of FIG. 22 is the drive gear 2
Since 03 is only meshed with the sector gear 204 and is not rotated, the locked state of the cartridge chamber lid 23 by the lock member 34 is maintained. In the state of FIG. 22, when the switch 29 changes from “ON” to “OFF”, the pattern of the phase printed board 202 is examined in order to detect what the phase of the fork gear 201 is. Normally, after the rewinding of the film is completed, as a film state set, the exposed display phase is stopped when the moving electric contact piece 12 of the fork gear 201 comes to the position of “E” display, that is, the pattern 202c. 29
If the phase of the moving electrical contact piece 12 is in the pattern 202c, that is, if the exposure has been completed when is turned off, the film state set becomes "OK", the motor 303 described later is driven, and the drive gear 203 is rotated clockwise. Rotate. Then, the sector gear 204 rotates in the counterclockwise direction to rotate the door drive shaft 4, the door 3, and the lock member 34 in the counterclockwise direction, and closes the door 3 of the cartridge 1 to be in the light-shielding state, and the cartridge chamber. The locked state of the lid 23 is released. FIG. 23 shows a state in which the lock state is released, and the cartridge chamber lid 2 is locked by the spring 22 described above.
3 is opened and the cartridge 1 is taken out. However, in the state of FIG. 22, when the phase of the fork gear 201 by the film state set detection is different when the switch 29 is turned “OFF”, for example, when the photographing is completed but the unexposed position is detected, , It is judged that the set state has changed due to vibration etc., and drive gear 2
The motor 41 is driven to rotate the fork gear 201 without driving 03 immediately. Then, the phase of the moving electrical contact piece 12 that integrally rotates the fork gear 201 is detected by the pattern of the phase printed board 202, and, for example, when it is an exposed film, after it is stopped at the phase of the pattern 202c. The motor 303 described later is driven to rotate the drive gear 203 in the clockwise direction to close the door 3 of the cartridge 1 and unlock the cartridge chamber lid 23 as described above. It goes without saying that the light-shielding state of the door 3 of the cartridge 1 at this time is achieved when the lock of the cartridge chamber lid 23 is released.

Further, when this embodiment is used, the phase for stopping the fork gear 201 after the rewinding of the film is
Since it is not particularly necessary to match the film state set, when the rewinding is completed, it can be stopped at a specific phase and the required film state set can be performed after the operation of the operating member 27, so that the control of the program etc. becomes simple. Instead, after the rewinding is completed, the cartridge 1 is left in the camera, and even if the phase is changed due to vibration or the like, the phase is set by the operation of taking out the cartridge, so that no problem occurs. Further, even when the phase of the film state set is largely deviated, the drive gear 203 can be prevented from being driven until the phase setting of the fork gear 201 is completed, so that the controllability can be reduced.

FIG. 29 is a schematic diagram showing only a portion related to film feeding and control of the spool and door of the cartridge in the electric configuration mounted on the camera of this embodiment. In FIG. 29, those having the same functions as those in FIG. 14 are designated by the same reference numerals, and a description thereof will be omitted. In FIG. 29, 302 is a motor drive circuit for driving the above-mentioned motor 303 in accordance with an instruction from the microcomputer 40.

Next, the sequence of the third embodiment is shown in FIG.
It will be described based on.

FIG. 24 shows the control operation from the time when the film is rewound into the cartridge 1 to the time when the lid 23 is opened after the photographing is completed.

This sequence is connected from FIGS. 15 and 16, but since FIGS. 15 and 16 are the same as those described above, each step of the flowchart of FIG. 24 will be described below. [(C)] Rewind the film into the cartridge 1,
The display of the data disk 16 is in a state of being set to a predetermined angular phase.

[Step 001] Switch 29 is set to "O".
Whether it is FF "(whether the operation member 27 is moved from the position of FIG. 21 (FIG. 27) to the position of FIG. 22 (FIG. 30)), and if“ OFF ”, the process proceeds to step 002.

[Step 002] Phase printed board 13
The rotation stop position of the fork gear 201 is detected by detecting where in the upper pattern the moving contact piece 12a is stopped.

[Step 003] Fork gear 201
It is determined whether the rotation stop position of is a predetermined position. If it is a predetermined position, the process proceeds to step 007, and if it is not the predetermined position, the process proceeds to step 004.

[Step 004] Motor drive circuit 42
The motor 41 is rotated in the film rewinding direction via the.

[Step 005] Phase printed board 13
The output signal corresponding to the contact piece 12a is detected above, and it is determined whether or not the signal has a predetermined value with respect to the phase stored in the microcomputer 40 (when the rotation position of the fork gear 201 reaches the predetermined position. Whether or not) is determined, and if “YES”, the process proceeds to step 006, and if “NO”, the process is repeated until “YES”.

That is, the spool 2 of the cartridge 1
The spool 2 is rotated until the predetermined phase is reached.

[Step 006] The energization of the motor 41 is stopped.

[Step 007] Motor drive circuit 30
2 to rotate the motor 303 to drive the drive gear 20.
After 3, the sector gear 204 is rotated counterclockwise.

[Step 008] The sector gear 204
By the rotation of, the closing operation up to the range where the light shielding property of the door 3 can be secured is completed.

[Step 009] Further, the rotation of the sector gear 204 is further rotated by the rotation allowance amount in the light shielding area of the door 3, whereby the lock member 34 is further rotated counterclockwise, and the lock portion 34c of the lock member 34 is rotated. When the cartridge chamber lid 23 is completely stored, the unlocking of the cartridge chamber lid 23 is completed.

[Step 010] The energization of the motor 303 driven through the motor drive circuit 302 is stopped by the time count by the microcomputer 40.

Therefore, when the cartridge 1 is taken out, it is possible to set the film state of the cartridge 1 after operating the operation member 27, and after the film is rewound, the cartridge 1 is set after the film state is set.
Even if vibration is applied to the camera without taking out the film and the state set changes, not only can it be corrected at the time of taking out, but it is no longer necessary to set the film state when the rewinding of the film is completed. Since it is possible to prevent the cartridge from being taken out, and the control program and the like can be simplified, it is possible to realize a cartridge with less failure.

<Correspondence between Invention and Embodiment> The "film state detecting means" described in the claims is the "phase printed board 13" of the first embodiment and the "phase printed board 202" of the third embodiment. "," Moving electric contact piece 12 ", and" photoreflectors 14a, 14b "may be included in addition to the above.

The "cartridge chamber lid opening / closing operation detecting means" described in the claims corresponds to the "switch 29" and "switch 30" of the embodiment.

The "door opening / closing drive means" described in the claims is "door drive shaft 4" of the first embodiment, "gear 39 and door drive shaft 4" of the second embodiment, and third embodiment. It corresponds to the form “drive gear 203 and door drive shaft 4”.

The “spool driving means” described in the claims is the “fork gear 10” of the first embodiment, the “fork gear 201” of the first embodiment, or the “fork gear 37” (second gear). Embodiment)).

The "film state display means" described in the claims corresponds to the "data disk 16" of the embodiment.

The "control means" described in the claims corresponds to the "microcomputer 40" of the embodiment.

[0195] The "interlocking device" described in the claims is
The "sector gear 6" and "spring 5" as well as the "cam plate 31" and "pin 27a of the operating member 27" of the first embodiment.
Or the "stationary member 7", or the "sector gear 38", "arm 40", "click spring 41", "engaging member 43", and "cam plate 4" of the second embodiment.
2 "and" a pin 27a of the operating member 27 ".

"Lid locking means" described in the claims
Corresponds to the “lock member 34c” of the embodiment.

The above is the correspondence relationship between each configuration of the embodiments and each configuration of the present invention, but the present invention is not limited to the configurations of these embodiments, and the functions or embodiments shown in the claims are It goes without saying that any structure may be used as long as the function of the structure can be achieved.

Further, the respective embodiments may be combined as necessary, or the constituent elements of the respective embodiments may be combined as necessary.

The present invention may be applied to all or a part of the structure of the claims or the embodiments to form one device or to be combined with another device. It may be an element that constitutes the.

The present invention can also be applied to image recording media other than films.

Further, the present invention may be made by combining the above-described embodiments and modified examples or their technical elements as needed.

The present invention also relates to various types of cameras such as single-lens reflex cameras, lens shutter cameras, video cameras,
Further, the present invention can be applied to optical devices other than cameras and other devices, devices applied to those cameras and optical devices and other devices, and elements constituting these devices.

The present invention is applied to various types of cameras such as a single-lens reflex camera, a lens shutter camera, a video camera, etc., as well as optical devices and other devices other than the cameras, and further to those cameras, optical devices and other devices. The present invention can also be applied to a device that composes these, or an element that constitutes them.

For example, although the "interlocking device" shown in the above-described embodiment is one that causes interlocking by mechanical movement, it may be configured as "interlocking device including electrical components". Further, various detecting means may be configured by non-contact detecting means.

In the embodiment, the engagement between the fork gear 37 and the sector gear 38 is gear interlocking, but it is not limited to this. For example, the interlocking is temporarily released by cam interlocking, and then the operating member is released. When re-interlocking with the cam plate, it is possible to switch to a smoother re-interlocking state.

In the embodiment, the lens barrel drive motor 303 is used to drive the drive gear 203, but the drive gear 203 is not limited to this, and the power of the zoom drive motor, the second motor for film feeding, the shutter drive motor, etc. It goes without saying that any drive source can be used for the division.

[0207]

According to the invention of claim 1, the interlocking means is
Therefore, the drive of the spool and the drive of the door are the same.
It can be done by the source. According to the second aspect of the present invention, if the camera is vibrated while the film cartridge is not taken out from the camera after the film is rewound, the data disk in the cartridge is displayed (that is, the rotation stop position of the data disk). Even if a situation such as a change occurs, the stop position of the data disk is automatically corrected when the opening of the cartridge chamber lid of the camera is performed. Can be not displayed.

According to the third aspect of the invention, when the start of the opening operation of the cartridge chamber lid is detected after the film is rewound, the spool is driven to correct the display of the film status display means to a predetermined display and at the same time. Since the door is closed, there is no risk of light leaking into the cartridge when the cartridge is taken out, and the film status display can be made proper.

According to the fourth aspect of the invention, since the standby position of the film status display means and the closing movement amount of the door are configured to correspond to each other, the standby position of the film status display means is set to the proper position. The door can be closed by the automatic correction operation.

[0210]

According to the invention of claim 5, another drive source is required.
A camera with a simple and inexpensive configuration that does not require
The film status display means is set to
The film cartridge inside the camera
After being left loaded for a long time, the camera vibrates.
As a result of the addition of
If the display has changed drastically,
A warning is displayed by the status display means, so the camera user
May use the film cartridge as it is.
Ruggedness can be avoided. According to the invention of claim 6,
Simple, inexpensive configuration that requires no other drive source
In the camera, the film status display means has a predetermined
When the film cartridge is set in the state of
Was left in the camera for a long time
Above, as a result of the vibration being applied to the camera, the film
If the display on the status display means has changed significantly
If the film cartridge is removed,
Since it is prohibited, the display of the film status display means
Take the crazy film cartridge out of the camera
And submit it to the film laboratory or reuse it
The danger can be avoided. According to the invention of claim 7,
A simple and inexpensive configuration that does not require any other drive source
In the camera, the film status display means is
Film cartridge in the state of being set to the state
Was left in the camera for a long time,
As a result of vibration or the like being applied to the camera, the film state
If the display on the display means has changed significantly
Also the display of the film status display means is automatically controlled by the control means.
Causes the crazy table to change to the correct set state.
Reuse the indicated film cartridge or film
It is possible to avoid the risk of submitting to a photo lab. Claim 8
According to the invention, when the opening operation of the cartridge chamber lid is performed during the film winding operation or the film rewinding operation, the film rewinding operation or the film winding operation is stopped and the door is not closed. There is no risk of scratching the film.

According to the ninth aspect of the invention, the opening operation of the cartridge chamber lid is performed when the door is closed to such an extent that light does not leak from the film entrance / exit into the cartridge after the film is rewound. Since it becomes possible, there is no possibility that light leaks into the cartridge.

[0213]

[0214]

[0215]

[0216]

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a structure related to a cartridge chamber of a camera according to a first embodiment of the present invention, and a diagram showing a film cartridge loaded in the cartridge chamber.

FIG. 2 is a cross-sectional view of essential parts of the camera, showing a state in which the cartridge chamber of the camera of the present invention is being loaded with the cartridge or being unloaded.

FIG. 3 is a cross-sectional view of a main part of the camera showing a state in which the cartridge is loaded in the cartridge chamber and a cartridge chamber lid is closed.

FIG. 4 is a cross-sectional view of essential parts of the camera showing a state immediately after the operation member 27 starts an opening start operation of the lid from the cartridge chamber lid closed state of FIG. 3;

FIG. 5 is a cross-sectional view of a camera main part showing a state where the operation member 27 is further opened and operated in the operation direction following the state of FIG. 4;

FIG. 6 is a cross-sectional view of a main part of the camera, showing a state in which the operation member 27 is further opened and operated in the operation direction following the state of FIG. 5;

FIG. 7 is a horizontal cross-sectional view of a main part of the camera of the first embodiment of the present invention, showing interlocking means of the cartridge spool drive system and the cartridge door drive system, showing the case where both drive systems are in the interlocked state. The figure shown.

FIG. 8 is a horizontal sectional view of an essential part of the camera of the first embodiment of the present invention, showing the interlocking means of the cartridge spool drive system and the cartridge door drive system, in the case where both drive systems are in the non-interlocked state. The figure which showed.

FIG. 9 is an explanatory view of a cartridge internal structure in which an end plate of a film cartridge before being completely loaded in the cartridge chamber of the camera of the present invention is partially cut away.

FIG. 10 is an explanatory view of a cartridge internal structure in which an end plate of the film cartridge immediately after being completely loaded in the cartridge chamber of the camera of the present invention is partially cut away.

FIG. 11 is an explanatory view of the internal structure of the cartridge in which a part of the end plate of the film cartridge is cut away in a state where the film entrance / exit door 3 is opened after being completely loaded in the cartridge chamber of the camera of the present invention.

FIG. 12 shows a structure of a moving electric contact piece 12 and a fork gear 10 which constitute a part of a fork gear rotational position detecting means (that is, a film state detecting means) equipped in the camera of the present invention. Exploded perspective view.

FIG. 13 is a plan view of a phase printed board 13 (conductor pattern board) that constitutes another part of the fork gear rotational position detecting means according to the first embodiment of the present invention.

FIG. 14 is a schematic diagram of an electrical configuration of a film feeding system and a cartridge chamber related control system of the camera of the present invention.

FIG. 15 is a flow chart showing an operation up to the completion of loading of a cartridge among the control operations of the film feeding system and the cartridge chamber-related control system in the camera of the first embodiment of the present invention.

FIG. 16 is a flowchart showing an operation of the camera of the first embodiment of the present invention in a camera use state after completion of loading a cartridge, among control operations of the film feeding system and the cartridge chamber-related control system.

FIG. 17 shows the control operation of the film feeding system and the cartridge chamber-related control system in the camera of the first embodiment of the present invention, from the film rewinding after the photographing to the cartridge removal. flowchart.

FIG. 18 is a horizontal cross-sectional view of a main part of the camera of the second embodiment of the present invention, showing the interlocking means of the cartridge spool drive system and the cartridge door drive system, where both drive systems are in the non-interlocked state. The figure which showed.

FIG. 19 is a horizontal sectional view of an essential part of the camera of the second embodiment of the present invention, showing the interlocking means of the cartridge spool drive system and the cartridge door drive system, showing the case where both drive systems are in the interlocked state. The figure shown.

FIG. 20 is a phase printed circuit board 13 forming another part of the fork gear rotation position detecting means (film state detecting means) equipped in the camera of the second embodiment of the present invention.
The top view of (conductor pattern board).

FIG. 21 is an exploded perspective view of a cartridge chamber-related structure of a camera of a third embodiment of the present invention and a diagram showing a film cartridge loaded in the cartridge chamber, in which a door of the film cartridge is in an open state. State.

FIG. 22 is an exploded perspective view showing a film cartridge loaded in the cartridge chamber, showing a state in which the door of the film cartridge is open and the operation member is operated to drive the sector gear.

FIG. 23 is an exploded perspective view showing a film cartridge loaded in the cartridge chamber, in which the film cartridge door is closed and the cartridge chamber lid is unlocked.

FIG. 24 is a main-portion cross-sectional view of the camera showing a state where the cartridge is being loaded in the cartridge chamber of the camera according to the third embodiment of the present invention or being taken out of the cartridge;

FIG. 25 is a cross-sectional view of the main parts of the camera according to the third embodiment of the present invention, showing a state where the cartridge is loaded in the cartridge chamber and the cartridge chamber lid is closed.

FIG. 26 is a cross-sectional view of essential parts of the camera, showing a state immediately after the operation member 27 starts an opening start operation of the lid from the closed state of the cartridge chamber lid of FIG. 27;

27 is a cross-sectional view of the main parts of the camera, showing a state in which the operation member 27 is further operated in the opening direction following the state of FIG. 28.

28 is a cross-sectional view of the main parts of the camera, showing a state in which the operation member 27 is further operated in the opening direction after the state of FIG. 29.

FIG. 29 is a diagram showing an example of a circuit according to a third embodiment of the present invention.

FIG. 30 is a flowchart showing a sequence of taking out a cartridge according to the third embodiment of the present invention.

[Explanation of symbols]

1 ... Film cartridge 2 ... Film winding spool 3 ... Film entrance / exit door 3a, 3b ...
Hole 4 ... Door drive shaft 5 ... Spring 6 ... Sector gear 7 ... Stationary member 8 ... Holding plate 10, 201
... fork gear 10a ... fork 11 ... gear 12 ... moving electric contact piece 13,202
... Phase printed boards 14a, 14b ... Photo reflector 15 ... Spring 16 ... Data disk 17 ... Eject bar 18 ... Spring 19 ... Camera body 19a ... Cartridge chamber 20 ... Camera exterior body 21 ... Hinge shaft 22 ... Spring 23 ... Cartridge chamber lid 24 ... Roller 25 ... Lock claw 26 ... Spring 27 ... Operating member 28 ... Spring 29,30 ... Switch 31 ... Cam plate 32,33 ... Pin 36 ... Arm member 40 ... Microcomputer 41 ... Motor 42 ... Motor drive circuit 43 ... Photo reflector 44 ... Battery 203 ... Drive gear 301 ... LCD 302 ... Motor drive circuit 303 ... Motor 304 ... Release switch 305 ... Manual rewind switch

Claims (9)

(57) [Claims] 1. A film winding spool and a film output
With a film entrance opening and closing door arranged at the entrance
It has a structure that can use the film cartridge Cartridge for loading the film cartridge
Chamber and of the film cartridge into the cartridge chamber
Cartridge that is opened and closed for loading and unloading
Chamber lid and opening / closing for opening / closing the cartridge chamber lid
In a camera including an operation member, Door opening / closing drive for driving the film entrance / exit opening / closing door
Means and spool for driving the film winding spool
The driving means and the cartridge according to the opening operation of the cartridge chamber lid.
A link for linking the spool drive means and the door opening / closing drive means.
A camera having moving means. 2. The film cartridge comprises the film winding
Film status display according to the rotation stop position of the attachment spool
And a film state display unit for generating an output signal according to a display state of the film state display unit, and an opening operation signal for detecting an opening operation of the cartridge chamber lid. Cartridge chamber lid opening / closing operation detecting means , and controlling the spool driving means and the door opening / closing driving means according to output signals of the film state detecting means and the cartridge chamber lid opening / closing operation detecting means.
Controlling means for controlling the spool when the opening operation of the cartridge chamber lid is detected by the cartridge chamber lid opening / closing operation detecting means after the rewinding of the film into the film cartridge is completed. claims, characterized in that to drive the film winding spool has a function to set the film state displaying means to a predetermined display state by the drive means
The camera described in 1 . 3. The film winding by the spool drive means when the opening operation of the cartridge chamber lid is detected by the cartridge chamber lid opening / closing operation detecting means after the film rewinding into the film cartridge is completed. to give drives the spool claim 2, characterized in that it has a function of closing the film entrance door by said door opening and closing drive means and at the same time set the film state displaying means to a predetermined display state The listed camera. 4. The film winding by the spool drive means when the opening operation of the cartridge chamber lid is detected by the cartridge chamber lid opening / closing operation detecting means after the rewinding of the film into the film cartridge is completed. It has a function of driving the attachment spool to set the film state display means to a predetermined display state and at the same time closing the film entrance / exit opening / closing door by the door opening / closing driving means and corresponding to the closing operation amount of the door. 3. The camera according to claim 2 , which has a function of changing the standby position of the film status display means by the amount. 5. The control means further comprises a camera status display hand.
The film cart having the function of controlling the steps
Wrapping the film after the film is rewound into the ridge
The film spool is driven to drive the film status display means to a predetermined position.
Depending on the state set to the display state or the closing operation amount of the door
The standby position of the film status display means is changed by the corresponding amount.
The cartridge chamber lid opening / closing operation detection hand
When the cartridge chamber lid open operation detection signal is generated from the step
Of the film state from the film state detecting means of
If there is a warning, a warning is displayed on the camera status display means.
The device according to claim 4, which has a function of giving
The mounted camera. 6. The control means is the camera status display means.
A warning is displayed and the cartridge chamber lid is opened and closed.
The film state display means based on the output signal of the work detection means
The setting operation according to claim 5 is prohibited.
The mounted camera. 7. The control means is for opening and closing the cartridge chamber lid.
When an operation detecting signal for opening the cartridge chamber lid is not inputted from the operation detecting means, the film state display means waits for an amount corresponding to a predetermined display state or an amount corresponding to the closing operation amount of the film entrance opening / closing door. The camera according to claim 5, having a function of resetting the display state in which the position is changed. Has 8. A cartridge chamber cover opening and closing detection means for generating an operation signal to open by detecting the opening operation of the cartridge chamber cover, and control means for controlling the film feeding means in the camera, the When the opening operation of the cartridge chamber lid is detected by the cartridge chamber lid opening / closing operation detecting means during the film winding or rewinding operation, the control means stops the winding or rewinding operation by the film feeding means. The camera according to claim 1, having a function of causing the camera. 9. A cartridge chamber cover opening and closing detection means for generating an operation signal to open by detecting the opening operation of the cartridge chamber lid, a lid locking means for locking in the closed state the cartridge chamber lid, the cartridge chamber lid Control means for controlling the spool driving means and the door opening / closing driving means in accordance with the output signal of the opening / closing operation detecting means, the control means being configured to control the cartridge chamber after completion of rewinding of the film into the film cartridge. and it has a function of closing the film entrance door by said door opening and closing drive means to drive the film winding spool by said spool drive means when the opening operation of the lid is detected by the cartridge chamber cover opening and closing detecting means , When the opening of the door reaches a predetermined opening during the closing operation of the film entrance / exit door, The camera according to claim 1, wherein the camera has a function of releasing the lock.