JPS60217351A - Camera for discoid film cartridge - Google Patents

Abstract

PURPOSE:To make a camera small-sized by projecting a part of a film cartridge from a camera body to make the height of the camera body smaller than the longitudinal length of the film cartridge. CONSTITUTION:A camera 1 is formed into a thin flat shape, and the discoid film cartridge is stored in the camera 1. A projecting part 14 is formed in the right position of the center on a front part 1d of the camera 1, and a photographic aperture 14a is formed in the right position of the projecting part 14. The height of the body part of this camera 1 is made lower than that of the film cartridge to be loaded, and a slit-shaped aperture 6 through which the film cartridge should be projected is formed on the upper face of the camera 1.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD This invention relates to the construction of cameras using disc-shaped film cartridges.

It is desirable for conventional cameras to be as small as possible in order to make them easier to handle and carry, but since the size of the film cartridge etc. to be installed is fixed, it is difficult to make the camera smaller depending on the size. had its limits.

FIG. 1 shows a camera using a conventionally known disk-shaped film cartridge. Since the disk-shaped film cartridge is formed into a thin and flat shape, such a camera can be made thinner in the front and back directions, that is, in the direction in which the optical axis of the photographic lens extends. Have difficulty. For example, a camera (
The height A of 1) cannot be made smaller than the height B of the film cartridge (FC) loaded in the camera, and it has been difficult to reduce the size of the camera below this.

Purpose The present invention aims to further reduce the size of a camera that uses a disc-shaped film cartridge/body.

SUMMARY OF THE INVENTION The present invention provides a camera using a disc-shaped film cartridge, in which a cartridge chamber for storing the film cartridge is separated by a distance shorter than the distance between the upper and lower walls of the film cartridge. The main feature is that a clay wall and a lower wall are formed to face each other, and an opening is formed in one of the upper and lower walls to allow a part of the film cartridge to protrude.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 2 to 6 show a first embodiment of the present invention. FIG. 2 shows the appearance of the camera of the first embodiment, and the right side of the drawing is the front of the camera. As shown in Figure 2,
The camera (1) is formed into a thin and flat shape, and a disk-shaped film cartridge (not shown) is housed inside.

A bulge (14) is formed on the right side of the center of the front part (1d) of the camera (1), and a photographing aperture (14a) is formed on the right side of the bulge (14). A photographic lens (15) is installed inside the photographic aperture (14a).

A finder window (11) is formed in the two right corners of the front part (1d) of the camera (1), and a flash device light emitting part (12) is formed in the upper left corner of the same front part (1d), and a flash device light emitting part (12) is formed in the lower left corner of the front part (1d). A release button (13) is installed in each of the closer portions.

On the other hand, at the rear of the camera (1), the rear surface (1e) is formed to be flat, and the back cover (5) is formed to form a part of the flat surface, and the back cover (5) is closed. The rear surface portion (1e) and the back cover (5) are formed so as to form one plane when the camera is closed. The back cover (5) is pivoted near the bottom of the camera (1) so that it can rotate about an axis extending in the left-right direction of the camera. When the back cover (5) is rotated to the open position, the cartridge storage chamber is opened and the disc is removed. It becomes possible to insert and remove a film cartridge.

Now, to explain the external dimensions of the camera (1) with reference to FIG. The height L of the film cartridge (4) is formed to be lower than the height L of the film cartridge (4). Therefore, a portion of the film cartridge (4) always protrudes from the camera (1).

Therefore, in order to protrude the film cartridge (4), a slit-shaped opening is formed on the top surface of the camera (1) so that the shapes 5- face each other, and when the back cover (5) is closed and recessed, both sides are The opening (6) is formed by combining the + portion (lb) (51)). ”-Recessed part (1
1) Projections (If) (5g) projecting upward in an arc shape are formed at the right end portions of (5b) facing the camera (1). An opening (1g) is further formed in the upper surface part (1a) on the front side of the camera of the protrusion (1'').
g) and the recess (1b) is blocked by a wall (8) which is the front wall of the cartridge storage chamber, and the side of the recess (1b) from the wall (8) is the cartridge storage chamber and the opening (1g).
The side is inside the camera. In addition, the wall portion (8) has an opening (8
C) and (8d) are formed.

On the other hand, a standing wall (5f) is formed on the rear side of the camera of the protrusion (5g), thereby blocking the rear side.

Further, below the protrusion (5g) is a protrusion (5d) that protrudes toward the front of the camera, and near the protrusion (5d) is another protrusion (
5C) is formed, and the protrusion (5d) (5C) is an opening in the wall portion (8) when the back cover (5) is closed.
- Insert into (8d) and (8C) respectively. A groove (5e) is formed on the lower surface of the protrusion (5d).

On the other hand, a locking member (2) is installed on the top surface of the camera (1) so as to cover the opening (6). The lock member (2)
is a lever part (2a) that extends in the left-right direction of the camera;
It has a gear part (2d) integrally formed at one end of the lever part (2a). The lock member (2) has a gear portion (2d) that is connected to an opening (1) formed in the top surface portion (1a) of the camera.
g), and is supported so as to rotate about an axis extending substantially parallel to the optical axis of the photographic lens. When the locking member is in the locking position where the lever part (2a) is in contact with or close to the two sides of the camera, the lever part (2a) is opened (6).
) and rotate clockwise from the locked position to open the opening (
6) is opened and rotated approximately 45 degrees to reach the release position. The lever portion (2a) is U-shaped in cross section and has sufficient depth to cover the film cartridge projecting from the camera when in the locked position.

Note that a notch (2c) is formed by cutting out a portion of the rear wall (2b) at the right end of the lever part (2a) so as not to impede the rotation of the locking member (2). , when the lever part (2a) covers the opening (6), the notch (2
c) is covered by the standing wall (5f), so the opening (6) is not exposed to the outside. The rear wall (2b) and the standing wall (5f) also have the function of locking the camera back in the closed position. That is, when the locking member (2) is in the locked position, the rear wall (2b) is engaged with the standing wall (5f), thereby preventing the back cover from moving to the open position and allowing the back cover to be opened.

The gear part (2d) of the locking member (2) has a southern part (2e) formed therein, a claw part (2f) extending radially outward, and a gear part that protrudes toward the rear of the camera. A locking part (shaped like a brim) that extends outward in the radial direction of the
2g) is formed. The locking portion (2g) is positioned such that its tip can fit into the groove (5e) of the protrusion (5d) formed on the back cover (5).

Further, the locking member (2) is biased counterclockwise by a spring (26).

Inside the camera, the tooth portion (2e) of the gear portion (2d) meshes with a gear (20), and is further connected to an exposure window cover interlocking member (22) via a gear (21). The exposure window cover interlocking member (22) is rotatably supported coaxially with the winding shaft of the disc-shaped film, and has a claw (22b). This claw (22b) engages with a claw (18a) of a cover member (18) installed on the cartridge to shield the exposure window formed in the cartridge from light when the disc-shaped film cartridge is stored in the camera. Then, by rotating clockwise, the claw (18a) is driven and the cover member (18) is retracted from the exposure window.

A leaf spring (25) is installed inside the camera on the wall (8). The leaf spring (25) extends along a plane perpendicular to the optical axis of the photographic lens, and has one end fixed and the other end free. Its free end is connected to the opening (
8C) and has elasticity in the optical axis extension direction. Further, a part of the leaf spring is bent vertically to form a stopper (25b), and faces within the rotation locus of the claw part (2f) formed on the gear part (2d).

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

First, in the closed state of the back cover shown in Fig. 4, the locking member (2) is in the open/locked position according to the biasing force of the spring (26), and at this time, the locking part (2g) and the groove (5C) are engaged. The camera back is locked. From this state, hold the finger (2C)
Turn the lever part (2a) clockwise. The gear part (2d) rotates together with the lever part (2a), and just before the end of the rotation, the tip of the locking part (2g) separates from the groove (5e) and the back cover (5) is unlocked.

After the lever part (2a) has rotated by a predetermined angle, when the clockwise operating force is released, the lever part (2a) rotates slightly counterclockwise due to the spring force and moves to the position shown in Figure 5. The claw part (
2f) is locked by the stopper (25b) of the leaf spring (25), and the locking member (2) is stopped against the biasing force of the spring (26).

After extraction, the disc and fill 11 cartridge (4) are loaded into the cartridge storage chamber (3), and the back cover (5) is closed.

At this time, a part of the film cartridge (4) has an opening (6
) protrudes outward. -10- by closing the back cover (5).

The opening (5C) (5d) is formed in the wall (8).
8c) Insert into (8d). The protrusion (5c) is a leaf spring (2
5) and presses the spring portion (25C) to bend the leaf spring (25). This allows the stopper (25b
) comes off from the claw part (2f), and the locking member (2) releases the spring (
The tip of the locking portion (2g) engages with the groove (5e) of the biasing member (5d) of 26), and the back cover (5) is locked. Further, the rotation of the gear part (2d) is transmitted to the exposure window cover series moving member (22) through the gears (20) and (21), and the claw (22b)
) rotates clockwise to drive the claw (18a), retracts the cover member (18) from the exposure window (4b), and closes the exposure window (4).
b) Open.

When storing the film cartridge, when the exposure window (2) rotates and stops in contact with or close to the top surface of the camera, the lever part (2a) completely removes the film cartridge protruding from the opening (6). The cover is removed and the state shown in Figure 4 is restored.

When removing the film cartridge, remove the locking member (2).
) is rotated clockwise, the exposure window cover moving member (22) is rotated counterclockwise in conjunction with the rotation of the gear part (2d), and the cover member (18) rotates the exposure window ( 4b) is covered, the IL, part (2g) and groove (5e) are covered as described above.
) is disengaged, the lock is released, and the back cover (5) is opened.

As described above, in this embodiment, the height of the camera can be made lower than the film cartridge, and since the protruding part of the film cartridge is covered and protected by the part of the lever formed on the locking member, the protruding part of the film cartridge cannot be protruded from the camera body. Accidents where the film cartridge is broken due to external force, or when the film cartridge is not loaded, dust may enter the opening and the exposure window (4b) of the cartridge (4) fits into the frame on the camera body, blocking light. Because there are
It does not matter if light leaks from the gap between the inner peripheral edge of the opening (6) and the film cartridge (4).

In addition, in the first embodiment, the rear wall of the locking member (2) (
2b) and the vertical wall (5f) of the back cover (5) have the function of an opening/closing member that locks the back cover into the closed position.
d) and the locking portion (2g) can also be omitted.

(The following is a blank space) 13- Fig. 7 shows a second embodiment of the present invention, in which only the shape of the lever part (2a) of the locking member (2) and the shape of the upper surface of the back cover (5) are shown. This is different from the first embodiment.

As shown in the figure, the lever part (2a) is formed in a cross-sectional shape, and the part corresponding to the rear wall of the lever part in the first embodiment is the back cover (2a).
5) is formed integrally as a standing wall (5h). Also, the finger hook (2C) on the lever part (2a) is
) is formed at the tip. The rest of the configuration is completely the same as that of the first embodiment, so the explanation will be omitted. In this embodiment, the rear part of the protruding part of the film cartridge is connected to a vertical wall (
5h), the upper part and the front part can be protected by the lever part (2a), and the standing wall (5h) and the lever part (2a) can be protected.
The opening can be covered by a).

FIG. 8 shows a third embodiment of the present invention, in which a lever part (2a), a gear part (2d) and a camera (
1) and the shape of each upper surface (la) and (5a) of the back cover are the same as those of the first
- This is different from the second embodiment. That is, camera (1).”
A U-shaped recess (1b) is formed on the second surface (1a), but no protrusion (1f) is formed. Also, the top surface (1
A slit-shaped opening (1h) into which the gear part (2d) of the lock part 14-material (2) is fitted is formed in a).

On the other hand, on the back cover (5), a portion corresponding to the rear wall of the lever and the earthen wall of the first embodiment is formed as a cover portion (51) having a cross-sectional shape. The left and right ends (5
k) (51) is connected to the top surface of the camera back (5a) in an arc. Further, an engagement protrusion (5j) is formed at the right end of the cover part (51), which extends once toward the front of the camera and bends downward.

In the locking member (2), the lever portion (2a) consists only of a portion corresponding to the lever portion of the front wall t of the first embodiment, and the finger hook (2C) is formed only on the front surface.

Although the gear part (2d) has a claw part (2f),
There is no locking portion as in the first and second embodiments, and the outer peripheral portion (21) of the gear portion functions as the locking portion in the first and second embodiments. Further, a notch (2h) is formed on the outer circumference of the gear portion.

To explain the operation of closing the back cover (5) in this embodiment, when the back cover is open, the locking member (2) is rotated clockwise to the claw portion (2f'5'! 1/2nd Example) It is stopped by a leaf spring (not shown) similar to the one shown in FIG.

When you close the back cover in this state, the engaging protrusion (5j)
is fitted into the notch (2h) of the gear part (2d), and then the protrusion (5c) is fitted into the opening (8C) of the wall part (8) as in the first and second embodiments, and the plate spring (not shown) and presses it to bend it and release the lock of the claw part (2f).

The locking member (2) is rotated counterclockwise by the biasing force of a spring (not shown), so that the engagement protrusion (5j) engages the gear part outer periphery (
21), and the back cover (5) is locked. Further, at this time, the lever part (2a) comes into contact with or comes close to the front surface of the cover part (51) to cover the opening (6). Therefore, when the film cartridge is loaded, the film cartridge protruding from the opening (6) is completely covered with dust.

On the other hand, when the lever part (2) is rotated clockwise, the engagement protrusion (5j) aligns with the notch (2h) and the engagement protrusion (5
j) is disengaged from the outer circumferential portion of the gear portion (21), and the back cover is unlocked. As a result, the back cover (5) is opened, and the lock member (2) has a claw portion (2f) similar to the first embodiment.
is locked by engaging with a leaf spring (not shown).

Regarding the operation of the exposure window cover interlocking member (not shown),
This is similar to the example.

9 to 11 show a fourth embodiment of the present invention.

In this embodiment, the cover portion (51
) is approximately the same as that of the third embodiment, but the engaging protrusion (5j) is not formed. Further, the protrusion (5C) is not installed, and the protrusion (5C) and the engagement protrusion (5C) are not installed.
An engaging portion (5n) that also serves the function of j) is formed on the back cover (5). A groove (5e) is formed in the engaging portion (5n), and a slope (5m) is formed at the tip.

On the other hand, the upper surface part (1a) of the camera (1) has four parts (1b) similar to those in the first to third embodiments, and a slit-shaped opening (11) extending in the left-right direction of the camera. There is. Furthermore, the engaging portion (5n) is provided on the wall portion (8).
An opening (8e) facing the is formed.

In this embodiment, the locking member (2) is installed so as not to rotate but to slide. That is, the locking member includes a shielding part (2P) that covers the front surface of the cover part (51), an operating part (2k) and a rack part (2n) formed integrally with the shielding part (2P).
The neck part (21) connects the rack part (2n) and the shield 17-armpit part (2P).
and can move along the opening (11). The lock member (2) is urged leftward by a spring (26) applied to the rack part (2n).

Moreover, a pin (2m) is planted in the rack part (2n).

A locking member (2Q) is installed on the right side of the rack part (2n) and within its operating trajectory.The locking member @ (27) rotates around an axis parallel to the optical axis of the photographic lens. The locking member (27) is pivoted to rotate and is biased counterclockwise by a spring (28).
extends to a position where it can come into contact with the engaging portion (5n), and furthermore, the middle of the branch portion (27b) has a hook portion (27C).
It extends to the operating locus of the pin (2m) implanted in the rack part (2n).

The branch portion (27b) can engage with the groove (5e) of the pivoting engagement portion (5n) in a counterclockwise direction according to the biasing force, and the hook portion (27C) is configured so that the rack portion (2n) is the most When it moves to the right, it can engage with the pin (2m) on the rack part (2n) to prevent it from moving to the left.

18- On the other hand, a slope (27a) is formed at the tip of the hook part (270), and when the rack part (2n) moves to the right, the pin (2m)
) presses the slope (27a) to rotate the locking member, so that the hook portion (27C) does not interfere with rightward movement of the rack portion (2n).

A gear (23) meshes with the rack part (2n), and the gear (23) has the same structure as in the first embodiment.
The exposure window cover and the moving member (22) are connected.

Further, the back cover is biased in the opening direction by a spring (not shown).

In the above configuration, when the film cartridge is loaded, the locking member (2) is in the state of being moved most to the left according to the biasing force of the spring (26), and the exposure window cover interlocking member (22) is being moved most clockwise. The exposure window (4b) of the film cartridge is opened by rotation. Also,
Groove (5e) of the engaging part (5n) extending from the back cover (5)
A locking member (27) is engaged with the rear cover (5) to lock the back cover (5) in the closed state.

When removing the film cartridge, press the operating section (2k
) to slide the lock member (2) to the right, the gear (23) is rotated by the rack part (2n),
Furthermore, the exposure window cover interlocking member (22) rotates counterclockwise to close the exposure window cover of the film cartridge. Immediately before the lock member (2) finishes moving to the right, the rack part (2n
) is planted in the hook (270 ) to overcome. When the locking member (27) rotates, the branch portion (27)
b) is retracted from the groove (5e) of the locking part (5n) and the back cover (
5) is unlocked. The back cover (5) is opened by the biasing force of a spring (not shown), and the engaging part (5n) opens (
Leave from 8e).

When the locking member (2) completes its rightward movement, the locking member (27)
At this time, the exposure window cover of the film cartridge is completely closed.

When loading a film cartridge, insert the cartridge and close the back cover (5). Immediately before the back cover is closed, the engaging part (5n) fits into the opening (8e), and the slope (5m) comes into contact with the branch part C27b) of the locking member (27).

The locking member (27) is guided by the slope (5m) and rotates clockwise to release the engagement between the hook (270) and the pin (2m).

When the back cover (5) is completely closed, the locking member (27)
The branch portion (27b) faces and fits into the groove (5e) of the engaging portion (5n), and the locking of the back cover (5) is completed. The locking member (2) is moved to the left by the biasing force of the spring (26),
The exposure window of the film cartridge is opened by the exposure window cover interlocking member (22).

Incidentally, in each of the embodiments described in Section 2, the opening is formed in the camera clay wall, but it may be provided in the lower wall.

Effects As described above, in the present invention, in a camera using a disc-shaped film cartridge, the upper and lower walls are formed opposite to each other at a distance shorter than the distance between the upper and lower walls of the cartridge that houses the film cartridge. and 21- an opening formed in one of the upper and lower walls to allow a portion of the film cartridge to protrude.

For this reason, by making the film cartridge stand protrude from the camera body, the height of the camera body can be opened and closed to move between the locking position lower than the vertical length of the film cartridge and the locking position. If a member is provided and the opening/closing member covers the opening when it is in the locked position, and if the opening/closing member covers the protrusion of the cartridge when the film cartridge is stored, there will be no accident of the cartridge being damaged by external force or if the cartridge is left unused. This prevents dust from entering the opening during loading and causing camera malfunction.

[Brief explanation of the drawing]

FIG. 1 is a front view of a conventional disc-shaped film cartridge/strip camera, and FIG. 2 is a perspective view of a first embodiment of the present invention.
FIG. 3 is an exploded perspective view of essential parts of the embodiment, FIG. 4 is an explanatory diagram of the operation of the embodiment when the cartridge chamber lid is closed 22-, and FIG. 5 is an explanatory diagram of the cartridge chamber lid of the embodiment when the cartridge chamber lid is opened. FIG. 6 is a plan view of the same embodiment, FIG. 7 is an exploded perspective view of essential parts of the second embodiment of the present invention, and FIG.
9 is a plan view of the fourth embodiment of the present invention, FIG. 10 is an explanatory diagram of the operation of the same embodiment, and FIG. 11 is the same. FIG. 2 is an exploded perspective view of essential parts of the embodiment. 1a...Soil wall, 1a/...Lower wall, 2...Opening/closing member, 3...Cartridge chamber, 5...Cartridge chamber cover, 6...Opening. Applicant Minolta Camera Co., Ltd. 23-H4 Aji

Claims (1)

[Claims] 1. A cartridge chamber for storing a disc-shaped film cartridge; and a distance shorter than the mutual distance between a pair of walls of the film cartridges located above and below when the film cartridge is stored in the cartridge chamber. A disc-shaped film cartridge characterized by having a soil wall and a lower wall formed to face each other, and an opening formed in one of the two walls or the lower wall to allow a part of the film cartridge to protrude. Camera for film cartridges. 2. A cartridge chamber cover that moves between an open position that opens the cartridge chamber and allows insertion and removal of a film cartridge, and a closed position that closes the cartridge chamber; and a lock position that locks the cartridge chamber cover in the closed position. and an opening member that moves between a release position that releases the lock and allows the bolt to move to the open position, and the opening and closing member closes the opening when in the lock position and allows the film cartridge to be placed in the cartridge chamber. 2. The disc-shaped film cartridge camera according to claim 1, wherein the disc-shaped film cartridge camera covers the film cartridge protruding from the opening in the locked position when stored in the camera.