JPH0762755B2 - Waterproof camera - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention has a watertight structure between an opening for loading a film container, which is also called a film cartridge or a film cartridge, into a storage chamber and a lid for the opening. Such a waterproof camera.

[Conventional technology]

Conventionally, in this type of waterproof camera, it is common to form an opening for loading the film cartridge in the cartridge chamber on the surface along the axial direction of the cartridge chamber, for example, on the rear side of the camera body. It is known that the opening is formed and the back cover closes the opening.

This is such that, when the film cartridge is loaded into the cartridge chamber, the film can be positioned in the path from the cartridge chamber to the film exposure section, so that the opening allows the film cartridge chamber, the film exposure section, and
All of the film winding chamber and the like are configured to be opened (for example, JP-A-54-131926, or
(See Japanese Utility Model Laid-Open No. 55-4463).

[Problems to be solved by the invention]

However, in the case of the above-described conventional configuration, not only the film cassette room where the film cartridge is to be taken in and out, but also the film exposure section and the film winding room are opened at the same time. Therefore, the portion to be sealed by the annular seal member is long in order to keep the above. Therefore, there is a problem that a water leakage accident is likely to occur due to deterioration of the seal member or damage caused by hitting another object.

In addition, the area for opening and closing the film cartridge is also large, and the area for the lid that closes this opening is also large. There was also a risk of occurrence.

Therefore, in order to solve the problems that the sealing member becomes long and the opening becomes large as described above, it is conceivable to make the opening for taking in and out the film as small as possible. However, in order to position the film in the path from the cartridge chamber to the film exposure section as described above, a large opening including the exposure opening to the film winding room as described above is inevitably required. The opening could not be made small so that it would not exist.

In view of the above situation, an object of the present invention is to provide a waterproof camera having a more reliable watertight structure for a patrone chamber, which does not cause a problem in setting the film to the initial position and has a small probability of a water leakage accident. To do.

The waterproof camera according to the present invention is characterized in that, in a camera that uses a film container having a winding shaft around which the film is wound and a storage unit for storing the winding shaft, a film for storing the film container is provided. A container housing chamber, a control means for rotating the film in a direction to unwind the film, and sending out the film front end to the outside of the film container housing chamber, and a camera body for housing the film container in the film container housing chamber. An opening formed in a surface substantially orthogonal to the winding axis of the film container storage chamber, a lid for the opening, and a watertight holding member for keeping the opening and the lid watertight. To have.

That is, since it has a control means for feeding the film front end from the film container storage chamber, it is not necessary to provide an opening located in the path from the film storage chamber to the film exposure unit, and an opening for taking the film container in and out is provided. It can be made smaller. Therefore, the watertight holding member provided in the opening and the lid for holding the watertight structure becomes small.

In particular, if this opening is formed only on the end face of the cartridge chamber in the direction of the cartridge axis, it is possible to make the film cartridge have the minimum area and perimeter necessary for putting the film cartridge in and out of the cartridge chamber. It becomes.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view from below of a waterproof camera (CA) according to the present invention.

This camera (CA) has a flash emission window (3), a finder window (4), and a flash emission window (3) above (below in FIG. 1) a taking lens (2) provided in the center of the front surface of the camera body (1). A subject distance measuring window (5) that also serves as a subject brightness detecting light receiving window is provided.

The film cartridge (P) is loaded into the cartridge chamber (6) at the end of the lower surface of the camera body (1) (which is an example of the surface of the cartridge chamber (6) facing in the cartridge axis (Px) direction) (1a). A substantially circular opening (7) for forming is formed. The film cartridge room (6) is a film cartridge (135 type film cartridge defined by JIS) (P)
Is stored with the side where the cartridge shaft (Px) projects upwards (downward in FIG. 1). The lid (8) for opening and closing the opening (7) of the cartridge chamber (6) is
A lock lever (9), which is attached to the camera body (1) so as to be rotatable about an axis (x ₁ ) and locks the lid (8) in a closed position, is provided adjacent to the opening (7). ing.

The lock lever (9) is supported so as to rotate between a lock position for locking the lid (8) in the closed position and an unlock position. At the lock position shown in FIG. 2, the action part (9a) causes the camera (C
The normally open lock switch (S3) inside A) is closed. Also, the lock lever (9)
An O-ring (10), which is interposed between the body (1) and the camera body (1) to make the inside of the camera (CA) a watertight structure, is fitted to the shaft (9b) of the. A locking member for locking the lock lever (9) at the lock position may be separately provided.

An annular O-ring (11) is held on the inner wall of the lid (8), and when the lid (8) is in the closed position, the O-ring (11), which is an example of an annular sealing member, covers the lid (8). The cartridge body (6) is sandwiched between the camera body (1) and the peripheral portion of the opening (7) of the camera body (1), so that the cartridge chamber (6) is kept watertight.

The opening (7) for loading the film cartridge (P) into the cartridge chamber (6) is formed only on the end face of the cartridge chamber (6) in the direction of the cartridge axis (Px). That is, as will be described later, the film cartridge (P) loaded in the cartridge chamber (6) is configured to be rotationally driven, and the film ejected from the film cartridge (P) in association with this rotation. The tip of (F) is guided by the inner wall (6A) of the cartridge chamber (6) and automatically inserted into the film delivery port (6c) from the cartridge chamber (6).

Therefore, the opening (7) for loading the film cartridge (P) into the cartridge chamber (6) may be simply one that allows the film cartridge (P) to pass in its longitudinal direction, and can be made small, and The circumference can be shortened and a reliable watertight structure can be obtained.

Further, of the peripheral portion of the opening (7) and the portion of the lid (8) that holds the O-ring (11), the O-ring (11) is placed on substantially the same plane when the lid (8) is closed. The watertight structure of the cartridge chamber (6) is two-dimensional so that a reliable watertightness can be obtained.

A shaft (8a) is provided upright on the inner wall of the lid (8), and a conical guide member (12) is rotatably supported at the tip of the shaft (8a). The guide member (12) engages with the cylindrical cartridge shaft (hereinafter referred to as the lower cartridge shaft) (Pxb) on the non-projecting side in a state where the film cartridge (P) is stored in the cartridge chamber (6). Accordingly, the film cartridge (P) is positioned in the radial direction.

Further, the shaft (8a) of the lid (8) has a rotation blocking plate (1
3) is rotatably provided. On the upper surface of the rotation blocking plate (13) in the figure, the film cartridge (P) stored in the cartridge chamber (6) with the lid (8) in the closed position.
The annular elastic friction member (1
4) is attached. Further, as shown in FIG. 3, on the lower surface of the rotation blocking plate (13) in the figure, there are sawtooth projections (13a).
Are formed.

On the other hand, a pair of leaf springs (15) are attached to the inner wall of the lid (8), and the free ends of the pair of leaf springs (15) are
Each of them elastically abuts a projection (13a) of the rotation blocking plate (13). And the rotation stop plate (13) is
The elasticity of 5) urges it upwards, and the tip of the leaf spring (15) contacts the upright surface of the protrusion (13a) to prevent it from rotating counterclockwise in FIG. It has become.

That is, when the film cartridge (P) is stored in the cartridge chamber (6), the force exceeding the frictional force between the elastic friction member (14) and the lower end surface (Pb) of the film cartridge (P) is exceeded. Unless added, it does not rotate in the film rewind direction.

As shown in FIGS. 5 (a) to 5 (c), the cartridge chamber (6) is formed in a substantially cylindrical shape, and the film cartridge (P) having the film pull-out portion (Pa) is connected to the cartridge shaft (Px). ) Has an inner diameter that allows it to rotate around. That is, if the inner diameter of the cartridge chamber (6) is [D ₁ ] and the distance from the center of the film cartridge (P) to the outermost edge of the film drawing portion (Pa) is [d ₁ ], then D ₁ > 2d ₁ is there.

Further, as shown in FIG. 4, at the top of the cartridge chamber (6), there are three guide levers (16), a cartridge detection pin (17), and a tubular side on which the film cartridge (P) projects. A drive shaft (18) that is engaged in the Patrone shaft (hereinafter, referred to as the upper Patrone shaft) (Pxt) and transmits the rotational drive to the Patrone shaft (Px) is provided.

The three guide levers (16) are arranged with their phases differing from each other by 120 ° in the circumferential direction of the cartridge chamber (6). Each of the guide levers (16) stands up about 50 ° from the ceiling surface (6a) of the patrone chamber (6) at the standing position shown by the chain double-dashed line in FIG. 2 and the groove (6b) formed on the ceiling surface (6a). ) It is attached rotatably over a retracted position that goes inside. Then, springs (not shown) are respectively urged toward the standing position.

As the loaded film cartridge (P) is inserted into the inside of the cartridge chamber (6), the three guide levers (16) are connected to the upper end surface (Pt) around the upper cartridge shaft (Pxt).
While being pushed to the retracted position against the biasing force of the spring by abutting with, the tip of the pusher pushes the upper patrone shaft (Pxt) toward the center of the patrone chamber (6), and the upper patrone shaft ( Guide the drive shaft (18) into the Pxt). The number of guide levers (16) is not limited to three, but a film cartridge (P)
It is sufficient if the number is such that there is no hindrance to guiding the upper Patrone axis (Pxt) of (1) toward the center of the Patrone chamber (6).

The patrone detection pin (17) can be moved back and forth between a projecting position projecting from the ceiling surface (6a) of the patrone chamber (6) to the patrone chamber (6) and a retracted position retracted from the patrone chamber (6). Mounted on the spring (19)
Is urged toward the protruding position. The cartridge detection pin (17) is pushed by the upper end surface (Pt) of the film cartridge (P) inserted into the cartridge chamber (6) to move to the retracted position, and the normally open loading switch (S2) is closed. It is supposed to do.

The drive shaft (18) includes a protrusion (18a) and an upper cartridge shaft (P).
xt) plate (18b) with a width that can be engaged, and gear (G2
Cylindrical part (18c) that is fitted onto the transmission shaft (20) connected to 6)
Etc. Then, a pin (20a) provided on the peripheral surface of the transmission shaft (20) is fitted in a longitudinal hole (18d) formed in the cylindrical portion (18c), and the drive shaft (18)
Is configured so as to be slidable in the axial direction with respect to the transmission shaft (20) and rotate integrally with the transmission shaft (20). The drive shaft (18) is urged toward the film cartridge (P) side (lower side in the figure) by a spring (21). And the plate part (18b) is
By engaging a groove (not shown) in the upper Patrone shaft (Pxt), drive can be transmitted to the Patrone shaft (Px).

As shown in Fig. 5 (a) to (c), the camera (CA)
Inside the chamber, in addition to the cartridge chamber (6), the film transport roller (22) and the pressure contact roller (23) that make up the film transport mechanism (FT), the taking lens (2), the shutter (24), and the film exposure unit. (25), film crimping plate (26), film measuring sprocket (27), spool chamber (28), spool (29) incorporating motor (M), film guide lever (30), and battery (E) A battery room (31) for housing is provided.

A slit-shaped film delivery port (6c) is formed on the sidewall of the cartridge chamber (6) along the axial direction of the film cartridge (P). Film transport rollers (22)
The peripheral wall of each of the pressure contact roller (23) and the pressure contact roller (23) is made of an elastic rubber material, and is disposed in the vicinity of the film delivery port (6c). The film transport roller (22) is fixed to a shaft (22a) driven by a motor (M). The pressure contact roller (23) is rotatably supported and is in pressure contact with the film transport roller (22). Then, by rotating the film transport roller (22), both rollers (2
The film (F) sandwiched between 2) and (23) is adapted to be conveyed in the left-right direction in the drawing according to the rotation direction.

Sprocket for film measurement (27) is film (F)
When the film is conveyed, it engages with the perforation of the film (F) and rotates, and as described later, it drives the film counter (39) and also the film (F) for one frame.
The one-piece switch (S5), which is closed when the transport of is completed, is operated. The guide lever (30) has a roller (30a) rotatably provided at its tip, is rotatably mounted around a mounting shaft (30b), and is rotated by a spring (not shown) so that the roller (30a) Are urged to elastically press against the peripheral wall of the spool (29). The guide lever (30) guides the tip of the film (F) reaching the spool chamber (28) so as to move around the spool (29) in the direction A in the figure, and is wound around the spool (29). The film (F) is suppressed to ensure the winding.

The photographing lens (2) is designed so that the lens drive device (not shown) automatically adjusts the focus of the subject based on the distance information to the subject detected by the distance measuring device (not shown). Is configured. Also, shutters (24)
Is a so-called program lens shutter that changes its aperture over time, and the exposure is automatically controlled by an exposure control device (not shown) based on the brightness information of the subject detected by a photometric device (not shown). Is configured to.

A pair of light shielding members (32) and (33) are provided on the sides of the film transport roller (22) and the pressure contact roller (23). The pair of light blocking members (32) and (33) are
Each of them is made of an elastic member such as rubber having a light-shielding property, and is attached in a posture in which tip portions thereof elastically abut each other. The pair of light shielding members (32) and (33) are provided on the lid (8).
The light leaking from the film delivery port (6c) of the cartridge chamber (6) with the film open is prevented from entering the film exposure section (25) and the spool chamber (28). . Therefore, even if the lid (8) is inadvertently opened while the film has not been rewound after taking a few frames, it is possible to prevent the film having been taken from being exposed.

In addition, on the surfaces of the light shielding members (32) and (33) that are in contact with each other,
The light blocking may be more surely performed by sticking a light blocking cloth such as a telemp.

Next, drive shaft (1) for the film cartridge (P)
8), film transport roller (22), and spool (2
The drive transmission mechanism that transmits the drive force from the motor (M) is described in 9).

As shown in FIG. 6, the gear (G1) fixed to the rotation shaft (Ma) of the motor (M) constitutes the reduction gear train (G1).
2), (G3), (G4), (G5), (G6), and (G7) are interlockingly connected to the gear (G8). The gear (G8) has
In the figure, a pair of upper and lower gears (G9) and (G10) are
It is fixed so that it rotates together with 8). The lower gear (G10) in the figure is a gear (G10) that rotates integrally with the spool (29).
11).

That is, the spool (29) is rotationally driven in the direction opposite to the rotation direction of the motor (M) by the rotation of the gear (G1) accompanying the rotation of the motor (M).

On the other hand, the upper gear (G9) in the figure that rotates together with the gear (G8)
Are gears (G12), (G13), (G14), (G15), (G1
6) is connected to the sun gear (G17) via. The planet gear (G18) that meshes with the sun gear (G17) is the sun gear (G1
The lever (3) rotatably supported by the rotary shaft (34) of (7)
It is rotatably attached to 5). This planetary gear (G
18), when the sun gear (G17) rotates in the direction A in the figure,
Move to the position that meshes with the gear (G19), and then the sun gear (G17)
When is rotated in the B direction in the figure, it moves to a position where it meshes with the gear (G20).

The gear (G19) is fixed to the drive shaft (22a) of the film transport roller (22), and the gears (G21) and (G2).
It is connected to the gear (G23) via 2). The gear (G23) is connected to the drive shaft (18) for the film cartridge (P) via the one-way clutch (36). The one-way clutch (36) applies its rotational force to the drive shaft (18) only when the gear (G23) rotates in the direction A in the figure.
To tell. On the other hand, the gear (G20) is connected to the gear (G26) fixed to the drive shaft (20) via the gears (G24) and (G25).

The operation of the drive transmission mechanism configured as described above will be described.

When the rotation shaft (Ma) of the motor (M) rotates in the B direction in the figure, the spool (29) rotates in the A direction in the figure, that is, in the direction in which the film (F) is wound. Also, the sun gear (G1
7) rotates in the direction of A in the figure, and the planet gear (G18) turns into the gear (G1
By meshing with 9), the film transport roller (22) rotates in the direction A in the figure, that is, in the direction of transporting the film to the spool chamber (28) side in cooperation with the pressure roller (23). Furthermore, the drive shaft (18) for the film cartridge (P)
Rotates in the direction A in the figure, and drives the cartridge shaft (Px) in the direction in which the film (F) is loosened.

As a result, the film (F) in the film cartridge (P) is conveyed leftward in the drawing by the film conveying mechanism (FT), passes through the film exposing section (25) and reaches the spool chamber (28), and the spool ( It is wound around the outer circumference of 29). At this time, the transport speed of the film (F) by the film transport mechanism (FT) is higher than the winding speed of the film (F) by the spool (29) and the loosening speed of the Patrone shaft (Px). It is configured.

Therefore, even if the winding speed gradually increases due to the winding of the film (F) on the spool (29), the film (F) will not be wound faster than the transport speed of the film transport mechanism (FT). Is prevented from protruding.

In addition, the winding speed of the film (F) by the spool (29) is set to the highest, then the conveying speed of the film (F) by the film conveying mechanism (FT) is increased, and the loosening speed of the patrone shaft (Px) is set to the slowest. The drive transmission mechanism may be configured so that At that time, the spool (29) rotates faster than the film transport speed, but the friction mechanism is interposed in the spool (29) or in the drive transmission mechanism to drive the spool (29) by friction. It may be configured as follows. That is, the increase in the winding speed due to the thick film winding on the spool (29) is absorbed by the friction mechanism.

On the other hand, when the rotation shaft (Ma) of the motor (M) rotates in the direction A in the figure, the spool (29) rotates in the direction B in the figure. Further, the sun gear (G17) rotates in the B direction in the drawing and the planet gear (G18) meshes with the gear (G20), so that the drive shaft (18) for the film cartridge (P) rotates in the B direction in the drawing. Then, the Patrone shaft (Px) is driven in the direction in which the film (F) is wound. The rotation of the drive shaft (18) in the B direction in the figure is transmitted to the gear (G23) via the one-way clutch (36), and further to the gear (G22) and (G21). G19), the drive shaft (22a) of the film transport roller (22) is driven to rotate in the B direction in the figure.

As a result, the film (F) wound around the spool (29) is conveyed rightward in the drawing by the film conveying mechanism (FT) and rewound into the film cartridge (P).

On the other hand, the film measuring sprocket (27) is configured to be driven by being engaged with the perforation of the conveyed film (F), as described above. The film measuring sprocket (27) is linked to a one-frame switch operating mechanism (38) and a film counter (39) via a sprocket operating mechanism (37).

The one-frame switch actuating mechanism (38) is linked to the shutter (24), and closes the one-frame switch (S5) when the exposure for one frame on the film (F) is completed, and the sprocket for film measurement is closed. (27) is driven to open the one-frame switch (S5) when the sprocket operating mechanism (37) detects that the winding of one frame of film (F) is completed.

The film counter (39) changes the display of the display device (40) according to the operation of the sprocket operating mechanism (37), and the initial hoisting switch operating mechanism (41) is used. Open and close (S4). The initial winding switch actuating mechanism (41) closes the initial winding switch (S4) until the film counter (39) detects the first frame of the film (F), and the film counter (39) The initial hoisting switch (S4) is opened when the first frame of (F) is detected.

Next, the motor drive circuit shown in FIG. 7 for driving the motor (M) for transporting the film (F) will be described.

In this circuit, (S1) is the main switch, (S2) is the loading switch shown in FIG. 2 which is closed when the film cartridge (P) is stored in the cartridge chamber (6),
(S3) is a lock switch shown in FIG. 2 which is closed when the lock lever (9) is in the lock position, and (S4) is closed until the film counter (39) counts the first frame from the initial state. Initial winding switch shown in Fig. 6, (S5)
Is a one-frame switch shown in FIG. 6 which is opened when the winding of one frame of film (F) is completed and is closed when the exposure is completed, and (S6) is a rewinding lever (not shown) rewinding. A rewinding switch that is closed when it is in the position, and (S7) is a rewinding completion switch (S7) that is closed when the rewinding of the film (F) is completed.

The motor (M) is connected to a battery (E) as a power source via a main switch (S1) and a pair of relay switches (RL1) and (RL2). Both relay switches (RL1),
(RL2) is a separate transistor (T1), (T2)
Is activated to connect the motor (M) and the power supply battery (E). Both relay switches (RL
When neither 1) nor (RL2) is in the operating state, both electrode terminals of the motor (M) are short-circuited and the motor (M) is stopped. And a pair of transistors (T
1), (T2) base has transistors (T3), (T4)
The collectors of are connected separately, and when the transistors (T3) and (T4) are in the "ON" state, the transistors (T1) and (T2) are in the "OFF" state, and the corresponding relay switch ( RL1) and (RL2) are deactivated.

One input terminal of the AND circuit (AN1) has a loading switch (S2), a lock switch (S3), a pull-down resistor (R
1) is connected to the connection point, and the other input terminal is connected to the connection point between the initial hoist switch (S4) and the pull-down resistor (R2). That is, the AND circuit (AN1) outputs an "H" level signal when all the three switches (S3), (S4), (S5) are closed.

One input terminal of the OR circuit (OR1) is an AND circuit (AN1)
, And the other input terminal is connected to the connection point with the pull-down resistor (R3) of the one-piece switch (S5). The output terminal of the OR circuit (OR1) is connected to the bases of the two transistors (T1) and (T4). That is, the OR circuit (OR1) receives the "H" level signal from the AND circuit (AN1) or the one-piece switch (S1).
When “5” is closed, it outputs a “H” level signal. As a result, the two transistors (T1) and (T4) are turned on, the relay switch (RL1) is activated, and the motor (M) is normally rotated.

The output terminal of the OR circuit (OR1) is connected to the inverter (IN
3) is connected to the base of the transistor (T5) via. This transistor (T5) is a constant current circuit (CC),
The capacitor (C1), the constant voltage circuit (CE), and the comparator (CP1) form a timer circuit.
The comparator (CP1) is a capacitor (C1) in the "ON" state.
When the charging voltage of the capacitor (C1) becomes higher than the voltage of the constant voltage circuit (CE) because the transistor (T5) that short-circuits the circuit continues to be "OFF" for a predetermined time, it outputs the "H" level signal. To do. The output terminal of the comparator (CP1) is connected to one input terminal of the OR circuit (OR2). The other input terminal of the OR circuit (OR2) is connected to the connection point between the one-piece switch (S5) and the pull-down resistor (R3) via the inverter (IN2). That is, the OR circuit (OR2) outputs the "H" level signal when the comparator (CP1) outputs the "H" level signal or when the one-frame switch (S5) is opened.

One input terminal of the AND circuit (AN2) is an OR circuit (OR2)
, And the other input terminal is connected to the output terminal of the AND circuit (AN1) via the inverter (IN1). And the output terminal of the AND circuit (AN2) is
It is connected to the base of the transistor (T3). That is,
The AND circuit (AN2) outputs an "H" level signal when the AND circuit (AN1) outputs an "L" level signal and the OR circuit (OR2) outputs an "H" level signal. To do. As a result, the transistor (T3) is turned on and the motor (M) is stopped.

On the other hand, the bases of the two transistors (T2) and (T3) are
It is connected to the connection point between the rewind switch (S6) and the pull-down resistor (R4). That is, when the rewind switch (S6) is closed, the two transistors (T2) and (T3) are both in the "ON" state, the relay switch (RL2) is activated, and the motor (M) is reversely rotated. To do. The base of the transistor (T4) is connected to the connection point between the rewinding completion switch (S7) and the pull-down resistor (R5). That is, when the rewinding completion switch (S7) is closed, the transistor (T4) is in the "ON" state, and the motor (M) in reverse rotation is stopped.

The rewinding completion switch (S7) is provided for the film transport roller (22) and the pressure roller (23) in the transport path of the film (F).
It is provided in the vicinity of and. The film (F) is present at that position and is opened by contacting the film (F), and is closed when the film (F) is not present. The rewind completion switch (S7)
Instead of this configuration, for example, a film transport roller (2
2) The pressing roller (23) and the pressing roller (23) are both made of a conductive material, and when the film (F) does not exist, they are brought into contact with each other to be closed, and the film (F) exists between them. It may be configured to be opened by.

Next, each operation of the camera configured as described above will be described.

<1> Film loading operation As shown in FIG. 1, with the lid (8) of the patrone chamber (6) open, the film patrone (P) is placed in the patrone chamber (6) with the upper patrone shaft (Pxt) side first. ). At this time, the film take-out portion (Pa) of the cartridge (P) may be located anywhere around the cartridge axis (Px).

Further, in this camera (CA), a film can be loaded by a method different from the above method without touching the film cartridge (P). Next, it will be explained.

As shown in FIG. 8 (a), the film cartridge (P)
Is generally stored in the cartridge case (42) in a posture in which the upper cartridge shaft (Pxt) is positioned on the lid (42a) side. When loading the film, first, as shown in FIG. 8 (a), the camera (CA) is inverted to open the lid (8) of the cartridge chamber (6), and the cartridge case (42).
Remove the lid (42a). Next, as shown in FIG. 8B, the cartridge case (42) is inverted and positioned at the opening (7) of the cartridge chamber (6). As a result, the film cartridge (P) falls into the cartridge chamber (6) as shown in FIG.

In either method, when the lid (8) is closed, the film cartridge (P) is stored in the cartridge chamber (6) as shown in FIGS. 2 and 5 (a). At this time,
Even when the patrone shaft (Px) is inserted into the patrone chamber (6) with a slight inclination, the guide lever () is inserted as the film patrone (P) is inserted by closing the lid (8). The tip of 16) is the upper Patrone shaft (Pxt)
Is pushed toward the drive shaft (18) located in the center of the ceiling surface (6a) of the cartridge chamber (6), and the lid (8)
By inserting the guide member (12) attached to the lower patrone shaft (Pxb), the patrone shaft (Px) stands upright with respect to the ceiling surface (6a) of the patrone chamber (6). Posture is corrected.

Then, as shown in FIG. 2, with the lid (8) closed and locked, the elastic friction member (14) fixed to the rotation blocking plate (13) causes the biasing force of the leaf spring (15). Elastically presses against the lower end surface (Pb) of the film cartridge (P), and within the range of the frictional force between the members (P) and (14), the rotation prevention plate (13) and the film cartridge (P) Are integrally connected around the Patrone axis (Px). As a result, the film cartridge (P) has a serrated projection (13
Due to the engagement of a) with the leaf spring (15), only rotation in the direction A in FIG. 5 is allowed in FIGS.

The drive shaft (18) for the film cartridge (P) is inserted into the upper cartridge shaft (Pxt) and its plate portion (18b)
Engages with a groove in the upper Patrone shaft (Pxt), so that the rotational driving force can be transmitted to the Patrone shaft (Px). When the film cartridge (P) is inserted, the protrusion (18a) at the tip of the plate (18b) smoothly engages the groove in the upper cartridge shaft (Pxt) and the plate (18b) of the drive shaft (18). It is provided to match.

When the plate portion (18b) of the drive shaft (18) does not engage with the upper cartridge shaft (Pxt) when the film cartridge (P) is inserted, the drive shaft (18) is urged by the spring (21). Against the structure, it is pushed into the ceiling surface (6a) of the patrone chamber (6) and then engaged in the upper patrone shaft (Pxt) when the drive shaft (18) starts rotating. Has been done. In this state, the tip of the film (F) is in elastic contact with the inner wall (6A) of the cartridge chamber (6) due to its own elasticity.

Further, in FIG. 2, when the film cartridge (P) is inserted, the cartridge detection pin (17) moves upward in the drawing against the biasing force of the spring (19), and the loading switch (S2) closes. Is made. Further, the lock switch (S3) is closed by rotating the lock lever (9) to the lock position. At this time, the main switch (S1) is assumed to be closed. Also, the initial hoist switch (S4)
Is closed because the film counter (39) is in the initial state.

Therefore, in FIG. 7, the AND circuit (AN1) and the OR circuit (OR1) output the "H" level signal, the transistor (T1) is in the "ON" state, and the motor (M) starts the normal rotation. To do. In this normal rotation, the film counter (39) detects the first frame of the film (F), and the initial winding switch (S4)
Is opened and the one-piece switch (S5) is opened.

5 (a) to (c) and FIG. 6, the spool (29) is rotated by the normal rotation of the motor (M), that is, the rotation shaft (Ma) rotating in the B direction in the figure. It rotates in the direction A in the figure. The planet gear (G18) is the gear (G1
9), and the film transport roller (22) and the drive shaft (18) rotate in the direction A in the figure.

By rotating the drive shaft (18) in the direction A in the figure, the cartridge shaft (Px) is rotated in the direction in which the film (F) is wound. Since the film (F) has a frictional resistance between the film (F) and the teremp at the film drawing portion (Pa) of the film cartridge (P), the film (F) is rotated inside the film cartridge (P) by the rotation of the cartridge shaft (Px). Then, it spreads in the axial direction and comes into pressure contact with the inner wall of the film cartridge (P). In this state, the film cartridge shaft (Px), the film (F), and the film film cartridge (P) rotate integrally.

On the lower end surface (Pb) of the film cartridge (P), the second
As shown in the figure, the elastic friction member (14) urged by the leaf spring (15) is in contact with the elastic friction member (14), but the rotation prevention plate (13) and the leaf spring (13) are connected to the elastic friction member (14). 15) means that the film (F) can be rotated in the feeding direction, and the film cartridge (P) is the film (F).
At the same time, the rotation starts in the A direction in FIG. Along with this rotation, the leading end of the film (F) moves in the direction A in the figure while being slidably guided by the inner wall (6A) of the cartridge chamber (6), and the film formed in the cartridge chamber (6) is fed. Get to the exit (6c).

Then, as shown in FIG. 5B, the leading end of the film (F) passes through the film delivery port (6c) and is inserted between the film transport roller (22) and the pressure contact roller (23). Be done. The film transport roller (22) is driven and rotated in the direction A in the figure, and the film (F) is transported to the left in the figure. And the film (F) is exposed to the film (25).
After passing between the film and the film pressure plate (26), the spool chamber (28) is reached, and as shown in FIG. 5 (c), the spool (29) is moved along the guide lever (30) in the direction A in the figure. Being rolled up.

As described above, the motor (M) rotates normally and the film (F)
When the film winding operation is performed, as described above, the speed at which the film (F) is unwound from the cartridge shaft (Px) by the rotation of the drive shaft (18) is set to
It is set to be slower than the transport speed of the film (F) according to 2) and (23). Therefore, the film (F)
As the winding operation of (3) progresses, the looseness of the film (F) is gradually reduced and eventually disappears.

After that, the film (F) wound around the patrone shaft (Px) is forcibly released by the rotation of the film transport roller (22), so that the drive shaft (18) moves to the gear (G23). It is rotated faster than the rotation speed. However, as shown in FIG. 6, between the drive shaft (18) and the gear (G23), the gear (G23) rotates in the direction A in the figure, that is, the drive shaft (18) in the figure. Since the one-way clutch (30) that transmits only the rotation in the B direction is installed,
There is no inconvenience.

Then, the sprocket for measuring film (27) starts rotating from the time when it is engaged with the perforation at the leading end of the conveyed film (F), and as described above, operates the film counter (39) and the one-frame switch. Activate the mechanism (38). When the film counter (39) detects the leading edge of the first frame of the film (F) based on the perforation count, the initial winding switch (S4) is opened, and then the first frame of the film (F) is changed to the film. Exposure unit (25)
When it is detected that the switch is located at, the one-piece switch (S5) is opened. As a result, in FIG. 7, the AND circuit (AN1) and the OR circuit (OR1) both output a signal of "L" level, the transistor (T3) is in the "ON" state, and the motor (M) is stopped. To do.

<2> Shooting operation and winding operation After the initial winding of the film (F) in the film loading operation of <1> described above is completed, the initial winding switch (S4) remains open, and the AND circuit ( The output signal from AN1) maintains "L" level.

In this state, when a shutter release operation is performed by a release button (not shown), after the film (F) is exposed by the shutter (24), a single frame switch (S
5) is closed. Therefore, in FIG. 7, the "H" level signal is output from the OR circuit (OR1), the transistor (T1) is turned on, and the motor (M) is normally rotated.

As a result, in FIG. 6, the drive shaft (18), the film transport roller (22), and the spool (29) all rotate in the direction A in the drawing, and the film (F) moves to the left in the drawing. Be transported. At this time, the released shutter (24) is recharged by a shutter charging mechanism (not shown).

On the other hand, the film measuring sprocket (27) is driven by the conveyed film (F) to rotate in the direction A in the figure, and actuates the film counter (39) via the sprocket actuating mechanism (37). When the transport of one frame of the film (F) is completed, the one-frame switch (S5) is opened via the one-frame switch operating mechanism (38), and the motor is operated by the same operation as the film loading operation of <1> above. (M) stops.

<3> Film thrust detection operation During the film winding operation of <2> described above, the OR circuit (OR
While 1) is outputting “H” level signal, the output signal from the inverter (IN3) is “L” level.
The transistor (T5) is in the "OFF" state. Therefore, the capacitor (C1) is charged by the current from the constant current circuit (CC).

Then, even if the winding operation of the film (F) continues for a predetermined time (that is, a time that is usually slightly longer than the time required to wind one film of the film (F)), the one-frame switch (S5)
If is not opened, the charging voltage of the capacitor (C1) rises, becomes higher than the voltage of the constant voltage circuit (CE), and the output signal of the comparator (CP1) is inverted to "H" level. At this time, the output signal from the AND circuit (AN1) is at "L" level, so the gate of the AND circuit (AN2) is open, and the "H" level signal from the comparator (CP1) is at the OR circuit ( It is output from the AND circuit (AN2) through the OR2). Therefore, the transistor (T3) is turned on and the motor (M) is stopped.

This state is usually caused by the fact that the film (F) is not fed when shooting of all frames of the film (F) is finished or when trouble occurs. That is, the film measuring sprocket (27) is not driven, and the one-frame switch (S5) is not opened even after a lapse of a predetermined time.

On the other hand, during normal film transport, the output signal from the OR circuit (OR1) becomes "L" level by opening the one-frame switch (S5) within a predetermined time. Then, since the transistor (T5) is turned on via the inverter (IN3), the electric charge charged in the capacitor (C1) is discharged, whereby the capacitor (C1) is returned to the initial state.

<4> Film rewinding operation The film rewinding operation is set by the operation of the rewinding lever (not shown), and in FIG. 7, when the rewinding switch (S6) is closed, the transistor (T2) turns " It will be in the "ON" state, the relay switch (RL2) will operate, and the motor (M) will rotate in reverse. As a result, in FIG. 6, the drive shaft (18), the film transport roller (22), and the spool (29) all rotate in the direction B in the figure, and the film ( F) is conveyed to the right in the figure.

During the rewinding operation, the drive shaft (18) rotates to cause friction between the film (F) locked to the patrone shaft (Px) and the telempe of the film draw-out portion (Pa), whereby the film patrone ( P) itself receives a rotational force. But,
The elastic friction member (14) is in contact with the lower end surface (Pb) of the film cartridge (P), and the frictional force thereof is larger than the frictional force between the film (F) and the telem. The rotation blocking plate (13) to which the elastic friction member (14) is attached prevents the film (F) from rotating in the rewinding direction by the engagement between the protrusion (13a) and the plate spring (15). The film cartridge (P) does not rotate because it is blocked.

In other words, the elastic friction member (14), the rotation blocking plate (13), and the plate spring (15) prevent the rotation of the film cartridge (P) during the film rewinding operation from the cartridge reverse rotation preventing mechanism (R1). Configured.

Therefore, the film conveyed rightward in FIG. 6 is rewound on the Patrone shaft (Px) which is driven and rotated by the drive shaft (18). When the film (F) is all rewound into the film cartridge (P), the rewinding completion switch (S7)
Is closed. As a result, in FIG. 7, the transistor (T4) is in the "ON" state, the transistor (T2) is in the "OFF" state, and the motor (M) is stopped.

In the previous embodiment, the drive shaft (1) that engages with the groove in the upper cartridge shaft (Pxt) is used as the cartridge rotation drive mechanism (PM).
8) has been explained. The specific structure of the cartridge rotation drive mechanism (PM) can be appropriately changed, and an example thereof will be described below.

As shown in FIGS. 9 (a) to 9 (c), the pair of support levers (51), on the ceiling surface (6a) of the cartridge chamber (6),
(52) is rotatably supported by the respective mounting shafts (51a), (52a). At the tips of both levers (51) and (52), patrone support rollers (53) and (54) are rotatably supported, respectively.

The support levers (51) and (52) are linked to the operation of the lid (8) of the cartridge chamber (6) through an interlocking mechanism (not shown), and when the lid (8) is in the open position. It is in the retracted position shown in FIG. 9 (a), and when the lid (8) is closed, it moves to the operating position shown in FIGS. 9 (b) and 9 (c).
When the support levers (51), (52) are in the operating position, the pair of patrone support rollers (53), (54)
Are each configured to laterally support the upper Patrone shaft (Pxt).

In the figure, (55) is a sun roller, which is supported by a mounting shaft (55a) and is linked to a drive mechanism (not shown) so as to be bidirectionally rotationally driven. This drive mechanism is almost the same as the drive mechanism in the previous embodiment shown in FIG. 6, and this embodiment has a sun roller (55) in place of the drive shaft (18) in FIG. You can think of it.

The mounting shaft (55a) of this sun roller (55) has a lever (5
6) is rotatably supported. A pair of planet rollers (57) and (58) are rotatably supported on both free ends of the lever (56). And both planet rollers (57),
Both (58) are frictionally coupled to the sun roller.

When the sun roller (55) rotates in the direction A in the figure, the lever (56) rotates to move the planet roller (58) to the outer periphery of the upper Patrone shaft (Pxt), as shown in Fig. 9 (b). Abut,
The rotation of the sun roller (55) is transmitted through the planetary roller (58) to rotate the patrone shaft (Px) in the direction A in the figure. On the other hand, when the sun roller (55) rotates in the direction B in the figure, the lever (56) rotates and the planetary roller (57) moves to the upper patrone shaft (Pxt) as shown in FIG. 9C. The sun roller (55) rotates around the outer circumference and the rotation of the sun roller (55) causes the planet roller (57) to rotate.
Is transmitted through the shaft and rotates the Patrone shaft (Px) in the B direction in the figure.

In this configuration, for example, as shown by the broken line in FIG. 9 (a), even if the upper Patrone axis (Pxt) is inserted at a position slightly off the center of the Patrone chamber (6), the lid (8) The support levers (51),
When the (52) moves from the retracted position to the working position, the upper patrone shaft (Pxt) is pushed toward the center position by the pair of patrone support rollers (53) and (54), and the film patrone (P). The posture has been corrected.

The lever (56) is biased by a weak force so as to stop at the position shown in FIG. 9 (a) when the sun roller (55) is not rotationally driven. Therefore, even when the upper patrone axis (Pxt) of the film patrone (P) inserted in the patrone chamber (6) is biased toward the sun roller (55), the sun roller (55) is driven and rotated. , Is pushed to the center by either planetary roller (57 or 58).

Next, still another embodiment will be described. In FIG. 10 and FIG. 11, the structure of the cartridge chamber (6) is different, and the cartridge rotation drive mechanism (PM) is configured to match it.

As shown in FIGS. 10 (a) to 10 (c), the inside diameter of the cartridge chamber (6) faces the outermost edge of the film drawing portion (Pa) of the film cartridge (P) through the center of the cartridge shaft (Px). It is formed to be slightly larger than the distance to the peripheral wall of the film cartridge (P). That is, the inner diameter of the cartridge chamber (6) is [D ₂ ], the distance from the center of the film cartridge (P) to the outermost edge of the film drawing portion (Pa) is [d ₁ ], and the tubular portion of the film cartridge (P) is If the radius of is [d ₂ ], then 2 · d ₁ > D ₂ > d ₁ + d ₂ . Therefore, the Patrone room (6)
Inside, the film cartridge shaft (Px) is eccentrically rotated with the rotation of the film cartridge (P).

Therefore, as shown in FIG. 11, a protrusion (59a) and a plate (59b) corresponding to the protrusion (18a) and the plate (18b) of the drive shaft (18) in the embodiment shown in FIG. A drive plate (59) having a bracket) is interlocked with the transmission shaft (20) in the embodiment shown in FIG. 2 via a transmission spring (60). In the free state, the transmission spring (60) stands upright and supports the drive plate (59). Meanwhile, the Patrone room (6)
With the loading of the film cartridge (P) into the cartridge, the drive plate (59) is elastically deformed as shown in FIG. 11 in a state of being engaged with the groove in the upper cartridge shaft (Pxt). The drive plate (59) is allowed to transmit the driving force to the cartridge shaft (Px) in a state of being eccentric with respect to the center of the cartridge chamber (6).

As a result, the film cartridge (P) is driven and rotated with the cartridge shaft (Px) being eccentric with respect to the cartridge chamber (6).

In this structure, the inside diameter of the cartridge chamber (6) can be reduced. In addition, by setting the inside diameter of the cartridge chamber (6) to an appropriate size, the cartridge shaft (Px) of the inserted film cartridge (P) causes the center (C) of the cartridge chamber (6) to be seen in a plan view. Can always be included.

That is, for example, by arranging the protrusion (59a) of the drive plate (59) almost at the center of the cartridge chamber (6), the film pull-out portion (Pa) can be located at any position around the cartridge axis (Px). Even when the film cartridge (P) is inserted in the state of being on, the protruding portion (59a) and the upper cartridge shaft (P
xt), the plate portion (59b) of the drive plate (59) smoothly engages with the groove in the upper Patrone shaft (Pxt).

In this way, Fig. 10 (a) shows the upper Patrone shaft (Px
The drive plate (59) is engaged with the groove in t). Then, the lid (8) of the cartridge chamber (6) is closed and the drive plate (59) is rotated in the direction A in the figure by the same operation as in the previous embodiment, and the film cartridge (P) is moved to the cartridge chamber ( 6) Rotate while eccentric from the center (C).

As a result, the leading end of the film (F) moves in the direction A in the figure while being slidably guided by the inner wall (6A) of the cartridge chamber (6), and as shown in FIG. 6c). As the film cartridge (P) is further driven and rotated, as shown in FIG.
The leading end of the film (F) passes through the film delivery port (6c) and is directed to the film transport mechanism (not shown in FIG. 10C).

Fig. 12 shows the cartridge (P) during the film rewinding operation.
Reverse rotation prevention mechanism (RI) to prevent the rotation of the
FIG.

In this embodiment, the size and shape of the cartridge chamber (6) are the same as those shown in FIGS. 10 (a) to 10 (c). Then, a slit recess (6d) is formed in a part of the inner wall (6A) of the cartridge chamber (6), and the slit recess (6d) is formed.
A locking lever (61) is provided inside.

The locking lever (61) extends between a working position that projects into the cartridge chamber (6) shown by the solid line in the figure and a retracted position that retracts to the outside of the cartridge chamber (6) shown by the two-dot chain line in the figure. It is rotatably attached. Then, when the film rewinding operation is set, it is moved to the operating position in conjunction with the operation of the rewinding lever (not shown) linked to the rewinding switch (S6).

When the film rewinding operation is performed, the patrone shaft (Px) is driven in the B direction in the figure, so that the film patrone (P) itself also receives a force to rotate in the B direction in the figure. However, since the locking lever (61) in the operating position contacts the film pull-out portion (Pa), the rotation of the film cartridge (P) in the B direction in the figure is prevented, and the film (F) rotates in the film cartridge (Pa). It is rewound smoothly in P).

On the other hand, the locking lever (61) is at the retracted position outside the cartridge chamber (6) when the film (F) is loaded or when the film (F) is wound up. In addition, this locking lever (6
The thickness of 1) may be about [1.0 mm], and the width of the slit recess (6d) required for its withdrawal may be about [1.0 mm]. In operation, it does not hinder the transfer of the film (F).

It is of course possible to apply the structure in which the locking lever (61) is provided to the cartridge chamber (6) in the embodiment shown in FIGS. 5 (a) to 5 (c).

In each of the above-described embodiments, in order to rotate the film cartridge (P) in the cartridge chamber (6), the upper cartridge shaft (Pxt) of the film cartridge (P) is rotated in the direction in which the film (F) is wound. Although the driving structure is shown, the lower patrone shaft (Pxb) on the opposite side may be driven in a direction in which the film (F) is wound and loosened.

Further, the film (F) is wound and loosened by the rotation of the patrone shaft (Px), and the film patrone (P) is rotated by the contact between the film (F) and the inner wall of the film patrone (P). The film cartridge (P) itself may be directly driven to rotate. As an example thereof, although not shown, in the embodiment shown in FIG. 2, the fact that the elastic friction member (14) is in contact with the lower end surface (Pb) of the film cartridge (P) is used to prevent rotation. Board (1
It is conceivable that a disk is provided instead of 3) and the disk is interlockingly connected to the motor (M) via a wire or the like.

FIG. 13 shows a further embodiment of the patrone chamber (6).

In this embodiment, the cartridge chamber (6) is formed so that most of its inner wall (6A) follows the outer peripheral shape of the film cartridge (P). The vicinity of the film delivery port (6c) is bulged laterally so that the film drawing portion (Pa) of the film cartridge (P) can be rotated by a predetermined angle.

When loading the film (F), the film cartridge (P) is placed in the cartridge chamber (6) so that the film pull-out portion (Pa) is along the contact surface (6Aa) as indicated by the chain double-dashed line in the figure. insert. Then, as in the above-described embodiment, the film cartridge (P) is also rotated in the A direction in the drawing by rotating the cartridge shaft (Px) in the A direction in the drawing. The leading edge of the film (F) is held between the film transport roller (22) and the pressure contact roller (23). After that, the film (F) is conveyed leftward in the drawing by the rotation of the film conveying roller (22), and the pair of light shielding members (32),
It passes between (33) and reaches the film exposure section (25). The position of the film cartridge (P) at this time is shown by a chain double-dashed line in the figure.

In the case of this embodiment, the film (F) which has come out of the film pull-out portion (Pa) before loading has its leading end when the film pull-out portion (Pa) is along the contact surface (6Aa). It is preferable to set the length so that it is located near (22). Further, in this embodiment, since the inner wall (6A) of the cartridge chamber (6) is formed along the film cartridge (P), it is possible to make the cartridge chamber (6) small and compact. Along with this, the lid (8) for the opening (7) for loading the film cartridge (P) into the cartridge chamber (6) should have an extremely small shape as shown by the alternate long and short dash line in the figure. Is possible.

Further, according to the structure of this embodiment, when the film (F) is rewound, the contact surface (6Aa) prevents the film cartridge (P) from rotating in the B direction in the figure, so that the reverse rotation of the film cartridge is prevented. The mechanism (RI) can be omitted.

FIG. 14 shows a further embodiment of the cartridge chamber (6).

In this embodiment, the cartridge chamber (6) is formed so that substantially the entire inner wall (6A) thereof is formed along the outer peripheral shape of the film cartridge (P), which is further small and compact. In addition, Patrone room (6)
The lid (8) for the opening (7) is formed in a small shape as shown by the chain double-dashed line in the figure.

In this embodiment, the pressure contact roller (23) constituting the film transport mechanism (FT) has the same structure as that of the embodiment shown in FIGS. On the other hand, the film transport roller (22) is movably supported between a retracted position shown by a solid line in the figure and an operating position shown by a two-dot chain line. The film transport roller (22) is linked to the opening / closing operation of the lid (8) with respect to the cartridge chamber (6), and the lid (8)
Move to the working position when the lid is closed and the lid (8)
Is configured to move to the retracted position when is opened.

When loading the film (F), the lid (8) is opened, and the film cartridge (P) is placed along the cartridge chamber (6).
Insert. At this time, the film (F) is slightly bent due to its elasticity and is restored after passing through the opening (7) so that the film (F) is positioned between the film transport roller (22) and the pressure contact roller (23). To After this, the lid (8)
When is closed, the film transport roller (22) moves to the working position and holds the film (F), and thereafter, by the rotation of the film transport roller (22), the film (F) moves to the left in the figure. Be transported.

In the case of this embodiment, it is not necessary to rotate the film cartridge (P) in the cartridge chamber (6) during the film loading operation. Further, since the film cartridge (P) does not rotate relative to the cartridge chamber (6), it is not necessary to provide the cartridge reverse rotation preventing mechanism (RI).

Although not shown in the drawing, the tip of the film (F) is directed along the Patrone axis (Px) between the film transport roller (22) and the pressure contact roller (23) constituting the film transport mechanism (FT). Alternatively, the lid (8) may be configured to open and close this opening as well.

As described above, the waterproof camera according to the present invention has the control means for feeding the front end of the film out of the film container storage chamber, so that it is necessary to provide the opening portion located in the path from the film storage chamber to the film exposure unit. Therefore, the opening for taking in and out the film container can be made small.

Therefore, the watertight holding member provided in the opening and the lid, which is necessary for holding the watertight structure, can be made small, and the probability of deterioration or damage of this member can be made small, and due to the warp of the lid. It is possible to reduce the occurrence of gaps.

As a result, it has become possible to provide a waterproof camera that is less likely to cause a water leakage accident and has a more reliable watertightness with respect to the cartridge room.

[Brief description of drawings]

The drawings show an embodiment of a waterproof camera according to the present invention. Fig. 1 is a perspective view of the entire camera from below, Fig. 2 is a longitudinal sectional view of a cartridge chamber, and Fig. 3 is a perspective view of a rotation blocking plate. FIG. 4 is a perspective view of the top of the cartridge chamber, FIGS. 5A to 5C are bottom views showing the internal structure of the camera, FIG. 6 is a perspective view of the drive transmission mechanism, and FIG. 7 is a motor drive circuit. circuit diagram,
8 (a) to 8 (c) are schematic views showing a film loading operation, FIGS. 9 (a) to 9 (c) are bottom views showing another embodiment of the cartridge rotation drive mechanism, and FIG. 10 (a). ) To (C) are bottom views showing another embodiment of the cartridge chamber,
FIG. 10 is a sectional view showing a cartridge rotation drive mechanism for the cartridge chamber of the embodiment of FIGS. 10 (a) to 10 (c), and FIG. 12 is a bottom view showing another embodiment of the cartridge reverse rotation preventing mechanism,
13 and 14 are bottom views showing another embodiment of the cartridge chamber. (Px): winding shaft, (P): film container, (6) ...
… Film container storage room, (FI) …… Control means, (1a)…
... A surface of the camera body that is substantially orthogonal to the winding axis of the film container storage chamber, (7) ... Opening,
(8) ... Lid, (11) ... Watertight holding member.

Front Page Continuation (72) Inventor Maki Yamashita 2-30 Azuchi-cho, Higashi-ku, Osaka City, Osaka Prefecture Osaka Osaka Building Minolta Camera Co., Ltd. (56) Reference JP-A-59-214832 (JP, A) JP-A-SHO 57-109931 (JP, A) JP-A-55-60933 (JP, A) JP-A-58-68729 (JP, A) Practical development 59-77134 (JP, U)

Claims (2)

[Claims] 1. A camera using a film container having a winding shaft around which a film is wound and a storage unit for storing the winding shaft, and a film container storage chamber for storing the film container, Control means for delivering the film tip to the outside of the film container storage chamber by rotating the film in the direction of loosening the film, and in order to store the film container in the film container storage chamber, among the surfaces constituting the camera body, An opening formed in a surface of the film container storage chamber substantially orthogonal to the winding axis; a lid for the opening; and a watertight holding member for keeping the opening and the lid watertight. And waterproof camera. 2. The waterproof camera according to claim 1, wherein the opening is formed only on an end face in the winding axis direction of the film container storage chamber.