JPH07295077A - Camera - Google Patents

Abstract

PURPOSE:To provide a motor-driven cartridge loading mechanism for a compact camera capable of transferring with high efficiency without the occurrence of the deformation of a cartridge. CONSTITUTION:When the film cartridge 2 is inserted and abutted on a detecting arm 15a, an insertion detecting switch 15 detects the insertion of the film cartridge, a roller 23 abutted on the wide flat part 2a of the cartridge is rotated counterclockwise via a roller gear 23b by the forward rotation of the roller motor 14b of a roller driving motor unit 14 and the cartridge is held by the roller 23 and a guiding roller 24 arranged in an opposite position across the cartridge and having a rotary shaft 24a parallel with a rotary shaft 23a, to be completely inserted inside. When the engaging hole of the cartridge is engaged with a main body fork and the cartridge is loaded in a fixed position, the roller motor is stopped and a cover is driven in a closing direction to be closed by the forward rotation of a cover motor 13b. The turning off of a film presence switch 27 is confirmed after the completion of photographing, to execute the cartridge taking out operation of the procedure reverse to that of the inserting operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera having a cartridge chamber in which a film cartridge can be electrically loaded.

[0002]

2. Description of the Related Art A conventional method for loading a cartridge into a camera is mainly a manual operation, and there has been no method for electrically performing this operation.

When electrifying the cartridge for easy and quick loading operation, opening / closing operation of the lid for covering the cartridge storage chamber, subsequent movement of the cartridge from the entrance to the photographing position, and removal after the photographing is completed are possible. It is necessary to electrify the two operations of the cartridge feeding operation of ejecting to the position.

Regarding the cartridge feeding mechanism to be considered in electrification, first, considering the load that acts as a resistance when the cartridge is pulled into the camera and when it is ejected, the weight of the cartridge and the wall surface when moving the storage chamber are considered. In addition to the sliding friction, the engagement load between the key groove of the film take-up spool of the cartridge and the key of the take-up fork of the camera body may be considered. In consideration of the case where the key and the key groove are out of phase with each other in the rotational direction at the time of loading, the key is temporarily retracted upward and the spool rotates to match the phase, and then the key is projected and engaged. Such a system is adopted, and refers to the load when inserting against the spring force for key recovery at that time.

That is, it is necessary to set a mechanism having a driving force sufficient to smoothly move the cartridge in and out against these loads, and as an element of the feeding mechanism for moving an object in and out. A mechanism based on the rotation of the roller is conceivable, but in this case, the design is based on how efficiently the rolling of the roller can be transmitted to the cartridge.

[0006]

However, in the above-described conventional example, if the rubber hardness of the rubber roller is increased or the compression amount of the rubber is increased in order to prioritize the efficiency and increase the transmission efficiency of sending the cartridge, the cartridge is There is a problem that the load applied to the sheet increases, and the deformation may cause abnormal contact between the rotating portion and the fixed portion, resulting in an increase in the feeding load, abnormal noise, and film scratches.

Further, in order to increase the carrying torque of the cartridge, the means of increasing the output of the motor, increasing the driving voltage, or increasing the reduction ratio of the reduction gear unit leads to the enlargement of the motor, the battery and the reduction unit. There is also a problem that it will greatly hinder the miniaturization of.

The present invention has been made in view of the above-mentioned problems, and prevents deformation of the cartridge to prevent abnormal sliding of the rotating portion, abnormal noise, film scratches, and the like, and a drive source motor, It is an object of the present invention to provide a cartridge chamber of a camera that achieves miniaturization of a battery and a speed reduction unit and enables highly efficient cartridge transfer.

[0009]

In order to achieve the above object, in the camera of the present invention, the cartridge chamber has a cartridge chamber for electrically loading a film cartridge. A roller having a driving force for sandwiching and moving the film from the first position to the other position is arranged at a position where the roller comes into contact with a substantially flat portion in the outer shape of the film cartridge.

According to a second aspect of the present invention, the length of the roller is substantially equal to or shorter than the length of the substantially flat surface of the outer shape of the film cartridge.

According to a third aspect of the present invention, the roller is arranged in the camera so as to be substantially perpendicular to the film feed plane.

According to a fourth aspect of the present invention, the roller is arranged in the camera substantially parallel to the film feed plane.

[0013]

According to the above structure, as described in claim 1, the outer shape of the film cartridge includes a roller having a driving force for holding the film cartridge in the cartridge chamber and moving it from the first position to another position. Since it is arranged so as to abut on a substantially flat portion formed near the outer surface or the position of the film drawing port, it is possible to contact the film cartridge over a wide area and securely sandwich it to efficiently transfer the film cartridge. .

Alternatively, as described in claim 2, the length of the roller having the driving force for moving the film cartridge is equal to or shorter than the length of the substantially flat surface of the outer shape of the film cartridge with which the roller contacts, so that a large space is provided. The film cartridge can be transferred more efficiently without the need for.

Further, by disposing the roller so as to be orthogonal or substantially orthogonal to the feed plane of the film in the camera as described in claim 3, the outer surface of the portion far from the exit of the film cartridge is flat. The unit can be used to transport the film cartridge.

When the rollers are arranged parallel or substantially parallel to the film feed plane in the camera as in claim 4, a longer flat portion provided near the film drawing opening is used to form the film cartridge. Can be transferred.

[0017]

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

1 to 20 are views relating to an embodiment of the present invention, FIG. 1 is a front view showing the appearance of a camera according to an embodiment of the present invention, and FIG. 2 is a cartridge loading port of the camera of FIG. FIG. 3 is a bottom view of the camera showing the side of FIG.
B2-B) vertical sectional view, FIG. 4 is a vertical sectional view (AA of FIG. 5) of the cartridge chamber of the camera of FIG. 1, and FIG. 5 is a bottom view of the external appearance cover of the camera of FIG. 1 is a bottom view showing a state in which the outer cover and slide lid of the camera of FIG. 1 are removed and the opening door is pushed open. FIG. 7 is a state in which the film cartridge of the camera of FIG.
B) A vertical cross-sectional view, FIG. 8 is a vertical cross-sectional view of the cartridge chamber (AA in FIG. 5) in the course of loading the film cartridge in a state different from that of FIG.
5 is a vertical cross-sectional view showing a completed state of loading the film cartridge of the camera (B2-B in FIG. 5), and FIG. 10 is a vertical cross-sectional view showing a complete loading state of the film cartridge (AA in FIG. 5). 11 is a transverse sectional view showing the loading completion state of the film cartridge, FIG. 12 is a bottom view showing the loading completion state of the film cartridge, FIG. 13 is a perspective view of the slide lid, and FIG. 14 is a locking mechanism of the slide lid. 5 is a partial sectional view (B1-B in FIG. 5), FIG. 15 is an exploded perspective view of the slip mechanism, FIG. 16 is a partial sectional view (B2-B in FIG. 5) showing a lock mechanism of the slide lid, and FIG. 17 is the same slide. FIG. 6 is a partial cross-sectional view (B2-B in FIG. 5) showing a lid locking mechanism.

In FIGS. 1 and 2, reference numeral 1 denotes a camera body,
1n is a lens, 1k is a camera body cover, 1a is a cartridge loading port provided on the bottom surface of the camera body 1 in a shape similar to the projection shape of the film cartridge 2 in the loading direction,
A button 19 is pressed when the film cartridge 2 is taken out.

In FIG. 3, reference numeral 1a is a cartridge loading port, and an inclined end surface 1b of approximately 45 ° is provided on the opening end surface thereof to facilitate loading of the film cartridge 2 (see FIG. 7). Inside the cartridge loading port 1a, there is a slide space 1f of the slide lid 3 over the entire bottom surface, and the rack 3a and the drive gear 4 mesh with each other between them to drive the slide lid 3 to move the cartridge loading port 1a. Slide open and close. The opening switch 5 is a switch which is turned on at the same time when the slide lid 3 is driven to the right and its right end comes into contact with the stopper 1c (end face of a light shielding groove 1j described later) of the camera body 1 shown in FIG.

Similarly, in FIG. 3, reference numeral 1d designates a cartridge chamber having substantially the same shape as the film cartridge 2 (see FIG. 6) and slightly larger than that of the film cartridge 2 and is present in the range of approximately ½ of the axial length of the film cartridge 2. . Further, the remaining half of the area below (on the side of the cartridge loading port 1a) is a space of a rectangular tube circumscribing the outer shape of the film cartridge 2, and a pair of double doors 7, 8 (Fig. 4, Fig. 4). 8 also) forms a rotating space 1e that rotates about 90 °. 1i is an inclined surface (see FIG. 4) that facilitates movement of the film cartridge 2 from the rotation space 1e to the cartridge chamber 1d.
See also). 1g is slide space 1f and rotation space 1
The cartridge loading port located between e and has substantially the same shape as that of the cartridge loading port 1a, and the slope 1h at the upper edge for facilitating loading of the film cartridge 2 (see FIG. 4).
See also).

As shown in FIG. 4, the cartridge loading port 1
There is a hinge shaft 9 directly below g, and the hinged doors 7 and 8 can be rotated by about 90 ° about the hinge shaft 9 and are both biased by a spring 10 in a direction to cover the cartridge loading port 1g. . Then, the pair of opening doors 7 and 8 are overlapped with the stepped portion 7a so as to overlap with each other in the closed state.
It has a function to prevent dust and dirt from entering the camera body. Further, the open doors 7 and 8 are colored (for example, red) so that it can be discriminated from the outside that the film cartridge 2 does not exist in the cartridge chamber 1 in the closed state. That is, when the red color is visible from the outside, the cartridge chamber 1 has a display function that the film cartridge 2 does not exist.

Next, the slide lid 3 will be described with reference to FIG.

The slide lid 3 has walls on the inside of the four sides of the rectangle, which are light-shielding protrusions 3c. The two long-side light-shielding protrusions 3c are slightly longer than the short-side, and a rack 3a is engraved on this end face. The left end of the short side in the drawing is the lock portion 3b. As shown in FIGS. 14 (a) and 14 (b), when the slide lid 3 is locked, this lock portion 3b locks the rotating body 6b.
It fits into the lock groove 6a (details will be described later), and by these, a spigot structure (fitting structure) is taken to shield light.
Further, the two long-side light-shielding protrusions 3c enter the light-shielding groove 1j of the camera body 1 shown in FIGS. 5 and 6 to form a movable light-shielding structure. Semi-circular guide portions 3d, which are slightly higher than the tooth tips, are provided at the front and rear ends of the rack 3a, and have a function of sliding on the camera body 1 during opening and closing operations to reduce friction.

The configuration of each unit will be described again with reference to FIG.

The lid drive motor unit 13 and the roller drive motor unit 14 are assembled with small motors (the lid motor 13b and the roller motor 14b in FIG. 18) using a reduction gear system having a gear ratio optimal for each application as a gear head. The output is performed by the output gear 13a and the output gear 14a in the unit. Each small motor is driven in forward and reverse directions by a driver 26 controlled by a CPU 25 described later.

The drive gear 4 is for driving the slide lid 3, and the drive gear 4 is constructed integrally with a slip mechanism for protecting the drive source from overload. This will be described with reference to FIG.

The slip gear 12 is the output gear 13a shown in FIG.
Output from the slip spring 11 and the drive shaft 4a is transmitted by the frictional force of the embrace.
The slip spring 11 is assembled coaxially with the drive shaft 4a at c so as to hold the slip portion 4b, and the arm portion 11a
The arm portion 11b is hooked on the spring hook portions 12a and 12b, respectively, to form a unit. That is, when the slip gear 12 rotates clockwise, the arm 11a also rotates in the same direction, the slip spring 11 loosens, the drive shaft 4a rotates due to the frictional force with the slip portion 4b, and the two-way take-up portion 4c drives it. The gear 4 rotates clockwise. Therefore, if the drive gear 4 receives a predetermined load or more, that is, if the slide lid 3 is stopped midway (for example, by pinching a finger) and overruns at both stopper ends, the slip portion 4b slips and the system moves in the system. It is possible to prevent damage due to overload. The reverse rotation side operates similarly.

Referring again to FIG. 3, the lock rotator 6 is pivotally supported by the camera body 1 so as to rotate about 45 ° about the long axis. The position of about 45 ° is the standby position, and the lock spring 1
8 is held by pressing the holding portion 6b.

As shown in detail in FIGS. 14 (a) and 14 (b), the slide lid 3 is closed and the lock portion 3b thereof is inserted into the lock groove 6a inclined at about 45 °, and at the same time, the lock rotor is rotated. 6 is rotated clockwise. Then, when the slide lid 3 further moves in the closing direction, as shown in FIG. 14B, the lock groove 6a rotates to an upright position, and in this state, the lock portion 3b and the locking groove 6a have a spigot structure, and the lock spring 18 causes the latch groove 6d. When the flat portion 6c is tilted, the lock switch 22 is turned on and the closing of the slide lid 3 and the completion of locking are transmitted to the CPU 25 described later.

Referring again to FIG. 3, the button 19 is vertically movable on the lower surface of the camera, and is held at the standby position by the button spring 20 which urges the lower surface direction. On the back side of the button 19, there is a protrusion 19a that pushes down the lock spring 18 to release it from the latch groove 6d of the lock rotor 6 after being pushed by a predetermined stroke (see also FIGS. 16 and 17). The protrusion 19a has a stroke longer than that of the button 19a.
When is pressed, the button switch 21 is turned on.

In FIGS. 3 and 11, reference numeral 23 denotes a roller fixed by press-fitting a cylinder having elasticity such as rubber made of urethane or silicon into the roller shaft 23a, and is normally and reversely rotated by the roller gear 23b. To be Further, the roller 23 may be anything as long as its surface has high friction, and is effective if, for example, the surface of metal or plastic has knurls or teeth. A guide roller 24 is shown in FIG.
As is clear from FIG. 1, the roller shaft 24a having a short axial length is similarly press-fitted, and the two rollers 23 and 24 have their rotation axes substantially parallel to the opposing positions for sandwiching the film cartridge 2 in the cartridge chamber 1d. It is arranged so as to be substantially orthogonal to the film feed plane of the camera, and has no influence on the thickness direction of the camera. The two rollers 23, 24 are designed to have a predetermined outer diameter after being press-fitted into their respective shafts. The outer diameter of the two rollers 23, 24 is the elastic rubber portion of the cartridge chamber 1d when the film cartridge 2 is loaded. Is compressed by a predetermined amount, and the film 23 is set to generate sufficient friction torque so that the film cartridge 2 smoothly moves up (pulls in) and descends (sends out) by the forward and reverse rotations of the roller 23.

Further, the roller 23 and the guide roller 2 described above are used.
4 is approximately 1 / of the space in which the film cartridge 2 is loaded.
It is at a height of 2. Further, the function of the roller 23 may be orthogonal or substantially orthogonal to the film feed plane without any problem. Further, in order to move the film cartridge 2 efficiently, the roller 23 is arranged so as to be pressed against a flat portion 2a (see FIG. 11) of the outer surface of the outer shape of the film cartridge 2 in a sufficiently wide range. The length is decided to be the same as the flat part or slightly shorter.

Further, since the outer surface of the roller 23 is set to have an appropriate elastic rubber hardness, even if the output of the roller driving unit 14 is directly input to the roller gear 23b,
A slip occurs between the surface of the elastic body and the surface of the film cartridge 2, and even when a high load is applied to the roller 23, the drive system is in a slip state where it is not damaged.

Referring again to FIG. 3, reference numeral 15 is a mechanical charging detection switch, and the detection arm 1 is provided inside the doors 7 and 8.
5a projects into the cartridge chamber 1d by a predetermined amount, and the height of the detection arm 15a is such that the lower end surface of the film cartridge 2 has the cartridge loading port 1a and the cartridge loading port 1a.
It is provided at a position where the switch 15 is turned on in the vicinity of contacting the roller 23 by being pushed a predetermined stroke after passing through g and pushing and opening the opening doors 7 and 8. Reference numeral 16 denotes a cartridge presence / absence switch, which is arranged at a position where the arm 16a is pushed down and turned on when the film cartridge 2 is completely held at a predetermined position. Reference numeral 17 is engaged with an engagement hole 2c (see FIG. 11) of the take-up spool 2a of the film cartridge 2 so that the key 17b has the key groove 2
d into the fork gear 1 by a gear train (not shown)
7a is a well-known fork that rotates to wind and rewind the film.

In FIG. 11, reference numeral 27 is a film presence / absence switch, which is provided on the film passage 1m for guiding the film pulled out from the film cartridge 2 to the take-up spool side (not shown) of the camera. The film is stored in the film cartridge 2 when it is on, and is off when it is in the light-shielded state.

FIG. 18 is a block diagram showing a circuit structure of a main part of the camera having the above mechanical structure.

In FIG. 18, reference numeral 25 denotes a CPU, which detects the states of other switches (not shown) in addition to the above-mentioned switches (5, 15, 16, 21, 22, 27), and will be described later based on the result. The driver 26 of FIG. A driver 26 is controlled by the CPU 25 to rotate the (film) feed motor 28, the lid motor 13b, and the roller motor 14b in the forward and reverse directions, or to stop them.

29 is a photometric circuit for measuring the brightness of the object,
Reference numeral 30 denotes a shutter which is drive-controlled so as to appropriately expose the film on the basis of the brightness information, and 31 denotes a display unit such as an LCD for displaying various status states such as the presence / absence of the film cartridge 2, for example. Is.

Next, the operation when the film cartridge 2 is loaded and when the film cartridge 2 is taken out of the cartridge chamber 1d will be described with reference to the flowcharts of FIGS.

FIGS. 3 to 6 show a loading preparation state of the film cartridge 2, FIGS. 7 and 8 show an initial stage of loading and a time when the film cartridge 2 is taken out, and FIGS.
2 indicates the completion of loading. Further, FIG. 14A shows a state immediately before the slide lid 3 is closed, and FIG. 14B shows a closed state.

First, the loading of the film cartridge 2 will be described with reference to the flowchart of FIG. Each step in the following figures is abbreviated as S.

This operation is the same whether the main switch of the camera (not shown) is on or off. When the film cartridge 2 is not loaded, the slide lid 3 is in the open state shown in FIG. 7 (the cartridge loading port 1a is open), and the film cartridge 2 is in the cartridge chamber 1 as will be apparent from the following description. 2 is provided in a state in which the doors 7 and 8 having a display function by coloring that does not exist close (close) the cartridge loading port 1g, that is, the state of FIG. 2 when viewed from the bottom of the camera.

In the above-mentioned state, the user inserts the film cartridge 2 into the double cartridge loading ports 1a and 1g after the transfer of the film cartridge 2 (see FIG. 8). In this early stage, the doors 7, 8 colored red
I feel a slight resistance in the overlapping position, but when the pushing force is increased and it is inserted further, the charging detection switch 15
When the film cartridge 2 comes into contact with the detection arm 15a of FIG. 7 (state shown in FIG. 7) and is further pressed against the torque of the detection arm 15a, the loading detection switch 15 is turned on, whereby the CPU 25 causes the film cartridge 2 to operate. It is detected that charging of the cartridge into the cartridge chamber 1d is started (S1).

When detecting that the loading of the film cartridge 2 is started, the CPU 25 sends a signal to the driver 26 to rotate the roller motor 14b in the normal direction, and the output gear 14a shown in FIG. 23b
And the roller 23 are rotated counterclockwise (S
2). As a result, the end portion of the film cartridge 2 is sandwiched between the roller 23 and the guide roller 24, the roller 23 is pressed against the flat portion 2a of the film cartridge 2 and is sent, and the whole is drawn into the cartridge chamber 1d.

That is, when the film cartridge 2 is inserted into the cartridge loading port A1a against the reaction force of the opening doors 7 and 8, the loading detection switch 15 is turned on by the momentum and the pulling-in of the roller 23 is started. However, since this operation is continuously performed in an instant, the film cartridge 2 is in a state of being sucked by itself during the loading process. The loading detection switch 15 is always on while the film cartridge 2 is being stored.

When the film cartridge 2 is driven by the roller 2 and guided by the guide roller 24 to move up in the cartridge chamber 1d, the fork 17 first causes the take-up spool 2 of the film cartridge 2 as shown in FIG.
The chamfered portion of the engagement hole 2c of b is engaged with the chamfered portion, and further rises while being centered. Then, when the lowest point is reached, the cartridge presence / absence switch 16 is turned on as shown in FIG. 9 (S3), and the CPU 25 detects that the film cartridge 2 is loaded in a predetermined position, and controls the roller motor 14b. Stop (S4).

When the roller motor 14b is stopped, even if an overrun occurs due to the inertia of the motor 14b, the roller 23 and the surface of the film cartridge 2 slip, so that no problem occurs in the drive system. Also,
While the roller motor 14b is stopped, the roller 23 can hardly rotate due to the gear ratio of the reduction system, so that the film cartridge 2 does not move due to vibration or the like.

Next, the CPU 25 sends a signal to the driver 26 to normally rotate the lid motor 13b (S5), and the output gear 13
The drive gear 4 is rotated in the clockwise direction through the slip mechanism including the slip gear 12 to output the output of a, and the slide lid 3
Is driven to the left in FIG. As a result, the opening switch 5 is turned off and the cartridge loading port A1a is closed by the slide lid 3
Closes. Here, even if a finger or the like interferes with the movement of the slide lid 3, it will slip between the slip gear 12 and the drive gear 4, so that the finger and the drive system are not damaged. After that, when the foreign matter is scattered and removed, the slide lid 3 further moves and closes.

Immediately before the slide lid 3 is completely closed, FIG.
As shown in (a), the lock rotor 6 is in a state in which the lock groove 6a is oriented in the direction of approximately 45 °, so that the lock portion 3b of the slide lid 3 enters the lock groove 6a and the lock rotor 6 is locked. Rotates clockwise about 45 ° against the pressing force of the lock spring 18 on the holding portion 6b, and the lock spring 18 engages with the latch groove 6d at a position where the lock groove 6a is upright as shown in FIG. 14 (b). It is mechanically locked and stopped.

In this state, the lock portion 3b and the lock groove 6a have a spigot structure for shielding light. At the same time, the flat portion 6c turns on the lock switch 22 (S
6) The CPU 25 detects that the slide lid 3 is closed and the mechanical lock is completed, and immediately stops the lid motor 13b via the driver 26 (S7).

After that, the completion of loading the film cartridge 2 is displayed on the display unit 31, and the feeding motor 28 is driven to start the film feeding, and the film feeding operation is performed.
Then, when the film is held at the shooting position, the shutter 30 is driven and shooting is performed in conjunction with the operation of the release button as is well known.

Since the lid motor 13a of the slide lid 3 is decelerated with a large reduction ratio, even if the slide lid 3 is accidentally moved, the drive gear 4 does not move beyond the backlash, but the slip gear 12 gradually rotates. Therefore, a mechanical lock is required by the lock rotating body 6.

Since the film pulled out from the film cartridge 2 is turned on by the film presence / absence switch 27 shown in FIG. 11 during photographing, the CPU 25 detects that the film is pulled out from the film cartridge 2. .

From the time when the film cartridge 2 is completely stored in the camera, as shown in FIG. 12, "CASSETE LOAD" is displayed on the upper surface of the slide lid 3 in a colored manner.
ED "(combined with the change of cartridge loading)
The loading of the film cartridge 2 is easily confirmed.

By the above operation, only about 1/2 of the film cartridge 2 is inserted into the loading port 1a at the bottom of the camera, and the subsequent operations are transfer of the film cartridge 2, holding at a predetermined position, closing of the slide lid, and the like. The initial feeding operation is performed and the shooting preparation operation is completed.

Next, the removal of the film cartridge 2 after the film shooting is completed will be described with reference to the flowchart of FIG.

The entire operation proceeds in the reverse order of the operation so far. Here, FIG. 16 shows an operation of pushing the button 19 to take out the cartridge, and FIG. 17 shows a state in which the button 19 is further pushed out.

When the fork 17 is driven through the feeding motor 28 to rewind the film into the film cartridge 2 after taking a predetermined number of images, the film presence / absence switch 7 is turned off, so that the CPU 25 keeps the film shielded from light. It is determined that

In this state, when the button 9 is pushed for the purpose of taking out the film cartridge 2 as shown in FIG. 16, the lock spring 18 is pushed down by its first stroke, and the protrusion 19a separates it from the latch groove 6d of the lock rotor 6. The mechanical lock is released.

In this state, the button 19 can be released at any time to return. Protrusion 19a with a further second stroke
Causes the button switch 21 to turn on (S101),
The CPU 25 turns off the film presence / absence switch 27,
When it is detected that the button switch 21 is turned on (S102), the lid motor 13b is driven through the driver 26 to start moving the slide lid 3 to the right as shown in FIG. 17 (S103). As a result, the lock portion 3b rotates the lock rotating body 6 in the counterclockwise direction, and the mechanical lock is released.

After that, the slide lid 3 moves to the right end,
Although the opening switch 5 is turned on (S104), the CPU 25 stops the lid motor 13b (S105),
Next, the roller motor 14b is driven through the driver 26 to rotate the roller 23 in the clockwise direction, and the roller 23 in pressure contact with the flat portion 2a performs a feeding operation to gradually start feeding the film cartridge 2 (S106). . The cartridge presence / absence switch 16 changes from on to off in the initial stage of the delivery, but the CPU 25 detects the delivery of the film cartridge 2 by this. The slide lid 3 is held at the open end with the opening switch 5 turned on due to the torque relationship depending on the reduction ratio of the gear train.

When the roller 23 continues to rotate and the film cartridge 2 descends as shown in FIG. 7 and a part of the film cartridge 2 projects to the bottom surface of the main body, the loading detection switch 15 changes from on to off, but the CPU 25 This is detected (S10
7) Further, when it is detected that the cartridge presence / absence switch 16 is off (S108), it is determined that the feeding of the film cartridge 2 is completed, and the roller motor 14b is stopped via the driver 26, that is, the rotation of the roller 23 is stopped ( S109).

At this time, the film cartridge 2 is separated from the roller 23 and the guide roller 24, and the film cartridge 2 can be taken out by pinching the part protruding to the camera body 1 with a finger.

When the film cartridge 2 is taken out, as shown in FIG. 8, the spread doors 7 and 8 pushed back to the initial position by the restoring force of the spring 10 and close the cartridge loading port 1g.

This completes the loading and unloading of the film cartridge 2.

That is, when the film cartridge 2 is loaded, if the film cartridge 2 is loaded directly into the camera body, the subsequent pulling operation and the closing operation of the lid are automatically performed, and when the film cartridge 2 is taken out, only the pushing operation of the button 19 is performed. Since the film cartridge 2 is immediately opened and extruded, the film cartridge 2 can be easily taken out.

Next, the second embodiment will be described.

FIG. 21 is a horizontal sectional view of a camera having a cartridge chamber according to the second embodiment of the present invention.

In FIG. 21, the roller 51 moves the film cartridge 2 up and down. Guide rollers 53 are arranged at opposite positions with the film cartridge 2 interposed therebetween. The materials and configurations of the rollers 51 and 53 are the same as in the first embodiment.

In operation, the roller 51 has the same function as the roller 23 of the first embodiment and the guide roller 53 has the same function as the guide roller 24. The roller 51 and the guide roller 53 are formed near the film drawing port of the film cartridge 2. The flat portions 2e and 2f are respectively brought into contact with each other, and the flat portions 2e and 2f are sandwiched and transported vertically. In particular, the flat portion 2e is a flat portion that exists in any film container because it is a portion connected to the film outlet. Since other operations are the same as those in the first embodiment, duplicate description will be omitted.

In such a second embodiment, each roller 5
The rotary shafts 1 and 53 are arranged substantially parallel to each other and are arranged parallel to or substantially parallel to the film feed plane of the camera 1. Especially, since the guide roller 53 can lengthen the contact portion with the flat portion 2f, the film cartridge 2 The gripping force and the transfer efficiency are improved. Further, since there is no roller outside the cartridge chamber, it is possible to lay out another unit of the camera in this portion. Alternatively, it is shortened in the longitudinal direction. Further, the function of the roller is not obstructed even if it is parallel to the film feeding plane or is slightly parallel to the plane.

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 a configuration capable of achieving the functions shown in the claims is provided. It goes without saying that it can be any kind.

[Correspondence between Invention and Embodiment] The roller having a driving force for sandwiching the film cartridge of the present invention and moving it from the first position to another position is the roller 2 of the embodiment.
Equivalent to 3,24.

[0075]

As described above, according to the present invention, as described in claims 1, 2, 3, and 4, some elastic rollers having a driving force for moving the cartridge are included in the outer shape of the cartridge. Since it is formed with a length almost equal to that of the substantially flat surface so as to contact the substantially flat surface of the cartridge, it is possible to transfer the cartridge with high efficiency, and the drive source motor, power supply, and speed reduction unit are compact. Is achieved, and there is an effect of preventing the deformation of the cartridge that occurs when the cartridge is clamped.

Further, there is no fear of abnormal sliding, abnormal noise or film scratches on the rotating portion due to deformation of the cartridge,
There is also an effect that it is possible to incorporate an electric cartridge loading mechanism into a small camera.

Further, as described in claim 3, since the rollers are arranged so as to be orthogonal or substantially orthogonal to the feed plane of the film, it is possible to incorporate the electric loading mechanism in a small size without increasing the thickness of the camera. There is an effect.

When the rollers are arranged in parallel or substantially parallel to the film feeding plane, the lateral length of the camera in the lateral direction is shortened and the electric cartridge loading mechanism is incorporated in a small size. The effect is that it becomes possible. In addition, since the flat part connected to the film outlet is pressed and fed, the contact part between the roller and the flat part can be made relatively long, the clamping force of the film cartridge and the transfer efficiency are improved, and the electric power can be reduced by a smaller drive source. Since the cartridge loading mechanism can be realized, there is an effect that a smaller camera can be developed as a whole.

[Brief description of drawings]

FIG. 1 is an external front view of a camera that is an embodiment of the present invention.

FIG. 2 is a bottom view of a camera having a charging port according to an embodiment of the present invention.

FIG. 3 is a front view of a central longitudinal section that is an embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view (view A) of the cartridge chamber according to the embodiment of the present invention.

FIG. 5 is a bottom view with the exterior cover removed, which is an embodiment of the present invention.

FIG. 6 is a bottom view in which the outer cover and the lid, which are an embodiment of the present invention, are removed and the opening door is pushed open.

FIG. 7 is a vertical cross-sectional view (view B) of the cartridge according to the embodiment of the present invention during loading and after being pushed out.

FIG. 8 is a vertical cross-sectional view of a cartridge chamber according to an embodiment of the present invention (during cartridge loading and after extrusion) (A
Sight).

FIG. 9 is a vertical cross-sectional view (view B) of the charging completion state which is an embodiment of the present invention.

FIG. 10 is a vertical sectional view (view A) of the charging completion state which is an embodiment of the present invention.

FIG. 11 is a horizontal cross-sectional view (view C) showing a fully loaded state according to an embodiment of the present invention.

FIG. 12 is a bottom view of a loading completed state according to an embodiment of the present invention.

FIG. 13 is a perspective view of a slide lid that is an embodiment of the present invention.

FIG. 14 is a partial vertical sectional view (D) showing an embodiment of the present invention.
Sight).

FIG. 15 is an exploded perspective view of a slip mechanism that is an embodiment of the present invention.

FIG. 16 is a partial vertical sectional view (B) showing an embodiment of the present invention.
Sight).

FIG. 17 is a partial vertical sectional view (B) showing an embodiment of the present invention.
Sight).

FIG. 18 is a conceptual diagram showing the configuration of the present camera, which is an embodiment of the present invention.

FIG. 19 is a flowchart at the time of loading the present camera which is an embodiment of the present invention.

FIG. 20 is a flow chart at the time of taking out the present camera which is an embodiment of the present invention.

FIG. 21 is a horizontal sectional view of a camera having a cartridge chamber according to the second embodiment of the present invention.

[Explanation of symbols]

 1 main body 1a loading port A 1b slope 1c stopper 1d cartridge chamber 1e rotating space 1f sliding space 1g loading port B 1h slope 1i slope 1j light shielding groove 1k bearing 1l cover 1m film passage 1n lens 1o optical axis 2a 2b film cartridge 2a Take-up spool 2c Engagement hole 2d Key groove 2e, 2f Flat part 3 Slide lid 3a Rack 3b Lock part 3c Light-shielding rib 3d Guide 4 Drive gear 4a Drive shaft 4b Slip part 4c Two-way take-up part 5 Open switch 6 Lock 6a Lock groove 6b Holding part 6c Flat part 6d Latch groove 7 Door A 7a Step part 8 Door B 8a Overlapping part 9 Hinge shaft 10 Spring 11 Slip spring 11a Arm A 11b Arm B 12 Slip gear 12a Spring rest A 12b Spring rest B 12c Metal part 13 Lid Drive Motor Unit 13a Output Gear 13b Lid Motor 14 Roller Drive Motor Unit 14a Output Gear 14b Roller Motor 15 Charging Detection Switch 15a Detection Arm 16 Presence / Absence Switch 16a Arm 17 Fork 17a Fork Gear 17b Key 18 Lock Spring 19 Button 19a Projection 20 Button Spring 21 Button Switch 22 Lock Switch 23 Roller 23a Roller Shaft 23b Roller Gear 24 Guide Roller 24a Roller Shaft 25 CPU 26 Driver 27 Film Presence / Absence Switch 28 Main Plate 29 Photometer 30 Shutter 31 Display 32 Feed Motor 51 Roller 53 Guide Roller

Claims (4)

[Claims] 1. In a camera having a cartridge chamber for electrically loading a film cartridge, a roller having a driving force for sandwiching the film cartridge and moving it from the first position to another position is included in the outer shape of the film cartridge. A camera provided with a cartridge chamber having a structure arranged at a position where it abuts against a flat portion. 2. The camera according to claim 1, wherein the length of the roller is substantially equal to or shorter than the length of the substantially flat surface of the outer shape of the film cartridge. 3. The camera according to claim 1, wherein the roller is arranged so as to be orthogonal or substantially orthogonal to a film feed plane of the camera. 4. The camera according to claim 1, wherein the roller is arranged parallel or substantially parallel to a film feed plane of the camera.