JPH08220628A - Ejecting device for film cartridge type camera - Google Patents

Abstract

PURPOSE: To prevent energizing force in a film cartridge thrusting direction from being exerted to a film cartridge loaded in a film cartridge chamber. CONSTITUTION: After inserting the film cartridge 4 in the film cartridge chamber 6, the insertion port 6a of the chamber 6 is closed by a cartridge cover 8, and a cover opening/closing knob 10 is turned to a closing position to engage a locking lever 26 with the catch 8a of the cover 8 so as to lock the cover 8. As soon as the cover is locked, an engaging part 28 provided in the lever 26 is engaged with the lower end of the ejecting member 221 so as to press the ejecting member 221 upward, the ejecting member 221 is thereby moved in a film cartridge inserting direction, and the catching part 221a of the member 221 is separated from the film cartridge 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ejecting device for a film cartridge type camera, and more particularly to a film cartridge type camera in which the ejecting force is not applied to the film cartridge loaded in the film cartridge chamber of the camera body. Of the eject device.

[0002]

2. Description of the Related Art A schematic structure of a film cartridge type camera will be described with reference to FIG. In FIG. 7, reference numeral 2 denotes a camera body, and a film cartridge chamber 6 for loading the film cartridge 4 along its axial direction is provided on the right side inside the camera body. Film cartridge chamber 6
Has a film cartridge insertion opening 6a opened on the lower surface of the camera body 2, and the insertion opening 6a is opened and closed by a cartridge lid 8 pivotally supported by the camera body 2.

In FIG. 7, reference numeral 10 denotes a lid opening / closing knob provided on the right side surface of the camera body 2. When the knob 10 is rotated to the open position, the locking claw 8a of the cartridge lid 8 is moved to the knob 1.
0 is released from the lock lever (not shown), the cartridge lid 8 is opened, and the film cartridge insertion opening 6a is opened. When the knob 10 is rotated to the closed position with the film lid insertion opening 6a closed by the cartridge lid 8, the locking pawl 8a of the cartridge lid 8 is moved.
Is locked by the lock lever of the knob 10, and the cartridge lid 8 is held in the closed state.

A known eject mechanism (not shown) for pushing out the film cartridge 4 loaded in the film cartridge chamber 6 when the cartridge lid 8 is opened is provided in the camera body 2. The eject mechanism includes an eject member that is arranged so as to be movable in the inserting / removing direction of the film cartridge 4, and the eject member has a hook that can be hooked on the tip of the film cartridge 4 that is inserted into the film cartridge chamber 6. The eject member is biased by a spring in a direction to push the film cartridge 4 out of the film cartridge chamber 6. Therefore, when the locking with the locking claw 8a is released by rotating the knob 10 to the open position, the cartridge lid 8 is opened and the film cartridge 4 is opened.
Are ejected from the film cartridge chamber 6 by the eject member. Reference numeral 12 is a finder.

[0005]

However, in such a conventional film cartridge type camera,
Since the engaging portion formed on the eject member is constantly engaged with the peripheral edge portion on the insertion end side of the film cartridge 4 loaded in the film cartridge chamber 6, the force of the eject member in the cartridge pushing direction is applied to the film cartridge 4. Always works, and as a result, the film cartridge 4 is pressed to the cartridge lid 8 side, and the rotation axis of the film spool of the film cartridge 4 is tilted due to the unbalanced load on the film cartridge 4, so that the film can be fed and wound. There was a problem that caused trouble. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a film cartridge type camera in which a biasing force in the film cartridge pushing direction is not applied to the film cartridge loaded in the film cartridge chamber. An eject device is provided.

[0006]

To achieve the above object, the present invention provides a film cartridge chamber formed in a camera body, into which a film cartridge is loaded, and a lid for opening and closing a film cartridge insertion opening of the film cartridge chamber. An eject member having a member and a hooking portion that can be hooked at a tip portion of the film cartridge inserted into the film cartridge chamber, and is movably arranged in the camera body in the insertion / removal direction of the film cartridge. An urging means for urging the eject member in the direction of pushing the film cartridge out of the film cartridge chamber; a lid lock mechanism provided between the camera body and the lid member; and an outer side of the camera body. Film car provided with an operation member for opening and closing the lid, which is provided in the In the ejecting device of the ridge type camera, the lid lock mechanism is configured to include a lock lever rotatably supported on the camera body side, and the eject lever in a state where the lid member is closed and locked. An engaging portion is formed which engages with the member and moves the eject member in the inserting direction of the film cartridge to separate the hooking portion from the front end portion of the film cartridge.

Further, the present invention is formed in a camera body,
A film cartridge chamber in which a film cartridge is loaded, a lid member for opening and closing a film cartridge insertion opening of the film cartridge chamber, and a hooking portion capable of being hooked at the tip of the film cartridge inserted in the film cartridge chamber. An eject member disposed in the camera body so as to be movable in the inserting / removing direction of the film cartridge; and an urging means for urging the eject member in the direction of pushing the film cartridge out of the film cartridge chamber. In the ejecting device of the film cartridge type camera, the eject member is engaged with a lid member in a state where the film cartridge insertion opening is closed to move the eject member in the insertion direction of the film cartridge, and the hook portion is filmed. Cartridge tip Eggplant engaging portion release is made.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a film cartridge ejecting apparatus according to the present invention will be described with reference to FIGS. 1 to 3, the same parts as those in FIG. 7 are designated by the same reference numerals, and 2 is a camera body, and the outer periphery of the camera body 2 excluding the bottom is covered with a cover member 14. . A film cartridge chamber 6 for loading the film cartridge 4 along the axial direction thereof is provided on the right side inside the camera body 2. The film cartridge chamber 6 has a film cartridge insertion opening 6a opened on the lower surface of the camera body 2, and the insertion opening 6a is opened and closed by a cartridge lid (lid member) 8 pivotally attached to the camera body 2 by a shaft pin 7. .

One end of the spool drive shaft 16 is rotatably supported at the center of the partition wall 6b on the side opposite to the insertion port 6a of the film cartridge chamber 6, and the spool drive shaft 16 has an inward protruding end. One end of the film spool 4a of the film cartridge 4 is engaged with and disengaged from the provided engaging portion 16a. In addition, the gear 1 is provided on the outward protruding portion of the spool drive shaft 16.
8 is fixed, the gear 18 is rotated by a spool drive mechanism including a gear train (not shown) and a small motor, and the rotation is transmitted to the film spool 4a of the film cartridge 4 via the spool drive shaft 16. Thus, the film in the film cartridge 4 can be fed out or wound up. Also,
The inner surface of the cartridge lid 8 has a film spool 4a when the insertion opening 6a is closed by the cartridge lid 8.
Support part 20 rotatably engaged with the other end of the
Is protruding.

An ejecting mechanism 22 for pushing out the film cartridge 4 loaded in the film cartridge chamber 6 when the cartridge lid 8 is opened is provided on the right side surface of the camera body 2 located inside the camera cover member 14. There is. The eject mechanism 22 has an eject member 221. The eject member 221 is arranged in a direction parallel to the central axis L of the film cartridge chamber 6 (the film cartridge 4 by a pair of guide pins 222 protruding from the right side surface of the camera body 2). Movably supported in the insertion / removal direction), and further, at one end of the eject member 221, a hooking portion 221a bent at a right angle to the film cartridge chamber 6 side is formed, and this hooking portion 221a of the camera body 2 is formed. The opening 2a formed on the right side surface projects into the film cartridge chamber 6. When the film cartridge 4 is loaded in the film cartridge chamber 6 and when the film cartridge 4 is pushed out of the film cartridge chamber 6, the peripheral portion of the film cartridge 4 on the insertion end side is engaged with the hook portion 221a. Further, the eject member 221 is connected to the film cartridge 4 by the spring 223.
Is urged in the direction of pushing out the film cartridge chamber 6.

The lid opening / closing knob (operation member for opening / closing the lid) 10 is
The camera cover member 14 is rotatably supported on the right side of the camera cover member 14 by a support shaft 10a penetrating its side wall. Support shaft 1
A click stop mechanism 24 that engages with the outer peripheral surface of the support shaft 10a and semi-fixes the rotation position of the lid opening / closing knob 10 to the closed position and the open position is attached to the penetrating portion of 0a. The click stop mechanism 24 is composed of steel balls, springs and the like. Further, a lock lever 26 that locks the closed cartridge lid 8 in a closed state is fixed to the inward protruding end of the support shaft 10a. Then, the locking lid 8a on the inner surface of the cartridge lid 8 is engaged to lock the cartridge lid 8 in the closed state. Also, the lock lever 2
An engaging portion 28 of a predetermined length extending in a direction perpendicular to the axis of the support shaft 10a is provided on the base portion of the protruding portion 6 so as to project therefrom.
The leading end of the is shown on the lower end side of the eject member 221. Therefore, when the knob 10 is rotated to the close position (lid lock position), the engaging portion 28 is moved to the eject member 22.
1, the entire eject member 221 is pushed upward in FIG. 1, the eject member 221 is moved in the film cartridge insertion direction, and the hook portion 221 thereof is engaged.
a is separated from the film cartridge 4. The locking claw 8a and the lock lever 26 constitute a lid lock mechanism operated by the knob 10.

The operation of the first embodiment constructed as above will be described. In the state of FIG. 1 (A) and (B),
The knob 10 is in the closed position (closed position), and this position is held by the click stop mechanism 24. Also, when the knob 10 is in the closed position, the lock lever 26
1 locks the cartridge lid 8 in the closed state by engaging the locking claw 8a of the cartridge lid 8 as shown in FIG. 1B, and at the same time, the engaging portion 28 resists the eject member 221 against the spring 223. The film is moved in the film cartridge insertion direction, and the hooking portion 221a is locked at a position separated from the film cartridge 4. In such a state, the force of the eject member 221 in the film cartridge pushing direction does not act on the film cartridge 4 in the film cartridge chamber 6. Therefore, the spool rotation axis of the film cartridge 4 loaded in the film cartridge chamber 6 is not inclined, and the film spool 4a is stably supported by the engagement portion 16a of the spool drive shaft 16 and the spool support portion 20. it can.

When the film cartridge 4 loaded in the film cartridge chamber 6 is taken out, the knob 1 is used.
Rotate 0 to the open position. Then, since the lock lever 26 is rotated to the state shown in FIG. 2B, the lock lever 26 is disengaged from the locking claw 8a, so that the cartridge lid 8 is opened as shown in FIG. 2A. At the same time, the engaging portion 28 moves to the insertion opening 6a side,
The position regulation of the eject member 221 by the engaging portion 28 is released, the eject member 221 is moved in the direction of the arrow in FIG. 2 by the spring 223, and the film cartridge 4 in the film cartridge chamber 6 is as shown in FIG. Then, the catching portion 221 a of the eject member 221 pushes the eject member 221 out of the film cartridge chamber 6.

FIG. 3 shows an operation state when the film cartridge 4 is loaded into the film cartridge chamber 6. When loading the film cartridge 4, the knob 1
After rotating 0 to the open position to open the cartridge lid 8, the film cartridge 4 is aligned with the film cartridge chamber 6 and pushed from one end side into the film cartridge chamber 6 to the inner part. At this time, from the middle of the insertion of the film cartridge 4, the peripheral edge portion on the insertion end side engages with the hooking portion 221 a of the eject member 221, and the eject member 221 moves together with the film cartridge 4. After the film cartridge 4 is loaded, the cartridge cover 8 is rotated in the direction of the arrow shown in FIG. 3A to close the insertion opening 6a, and the knob 10 is rotated to the closed position. 1 on the locking claw 8a of
Engage as shown in (B) to lock the cartridge lid 8 in the closed state. At the same time, the engaging portion 28 engages with the lower end of the eject member 221 to move the eject member 221 to the position shown in FIG.
(B) is moved in the direction of the arrow to separate the hooking portion 221a from the peripheral portion of the film cartridge 4 as shown in FIG. 1 (A). This completes the loading of the film cartridge 4 into the film cartridge chamber 6.

In the first embodiment, after the film cartridge 4 is inserted into the film cartridge chamber 6, the insertion opening 6a is closed by the cartridge lid 8 and the lid opening / closing knob 10 is rotated to the closed position. When the lock lever 26 is operated, the lock lever 26 is engaged with the locking claw 8a of the cartridge lid 8 to lock the cartridge lid 8. At the same time as this lid locking operation, the engaging portion 28 provided on the lock lever 26 is ejected. By engaging the lower end of the eject member 221 and pushing the eject member 221 upward.
1a is configured to be separated from the film cartridge 4. Therefore, the force of the eject member 221 in the film cartridge pushing direction does not act on the film cartridge 4 loaded in the film cartridge chamber 6. For this reason, the spool rotation axis of the film cartridge 4 loaded in the film cartridge chamber 6 is not tilted, and the film spool 4a is attached to the engagement portion 16a of the spool drive shaft 16 and the spool support portion 2.
When 0, the film can be stably supported and the film can be smoothly fed and wound without any trouble.

Next, a second embodiment of the present invention will be described with reference to FIGS.
Will be described. 4 to 6, the same parts as those of FIGS. 1 to 3 are designated by the same reference numerals, and the description of the structure will be omitted. The parts different from those of FIGS. 1 to 3 will be mainly described. That is, this embodiment is different from the first embodiment in that FIG.
As is clear from FIG. 6, the engagement portion 28 provided on the lock lever 26 in the first embodiment is eliminated, and instead of this, the lower end of the eject member 221 is extended downward by a predetermined length. The engaging portion 224 having the same function as that of the first embodiment is formed. This engaging portion 22
4 is in contact with the inner surface of the cartridge lid 8 when the film cartridge insertion opening 6a is closed by the cartridge lid 8 and locked by the lock lever 26, thereby moving the eject member 221 in the insertion direction of the film cartridge 4. , The hooking portion 221a is separated from the insertion-side leading end surface of the film cartridge 4.

The operation of the second embodiment constructed as above will be described. 4A and 4B show a state in which the film cartridge 4 is loaded in the film cartridge chamber 6 and the cartridge lid 8 is closed.
In this state, knob 10 is in the closed position and knob 1
When 0 is in the closed position, the lock lever 26 engages with the locking claw 8a of the cartridge lid 8 as shown in FIG. 4B to lock the cartridge lid 8 in the closed state. When the cartridge lid 8 is closed, the eject member 221 is moved in the film cartridge insertion direction by the cartridge lid 8 against the spring 223, and the hooking portion 221 a is located away from the film cartridge 4. . In such a state, the force of the eject member 221 in the film cartridge pushing direction does not act on the film cartridge 4 in the film cartridge chamber 6. Therefore, the spool rotation axis of the film cartridge 4 loaded in the film cartridge chamber 6 is not inclined, and the film spool 4a is stably supported by the engagement portion 16a of the spool drive shaft 16 and the spool support portion 20. it can.

When the film cartridge 4 loaded in the film cartridge chamber 6 is taken out, the knob 1
Rotate 0 to the open position. Then, since the lock lever 26 is rotated to the state shown in FIG. 5B, the lock lever 26 is disengaged from the locking claw 8a and the cartridge lid 8 is released.
Is opened as shown in FIG. At the same time, the regulation of the position of the eject member 221 by the inner surface of the cartridge lid 8 is released, and the eject member 221 moves the spring 223.
5, the film cartridge 4 in the film cartridge chamber 6 is pushed out of the film cartridge chamber 6 by the hooking portion 221a of the eject member 221.

FIG. 6 shows an operation state when the film cartridge 4 is loaded in the film cartridge chamber 6. When loading the film cartridge 4, the knob 1
After rotating 0 to the open position to open the cartridge lid 8, the film cartridge 4 is aligned with the film cartridge chamber 6 and pushed from one end side into the film cartridge chamber 6 to the inner part. At this time, from the middle of the insertion of the film cartridge 4, the peripheral edge portion on the insertion end side engages with the hooking portion 221 a of the eject member 221, and the eject member 221 moves together with the film cartridge 4. After the film cartridge 4 is loaded, the cartridge lid 8 is rotated in the direction of the arrow shown in FIG. 6A to close the insertion opening 6a, and the knob 10 is rotated to the closed position. As shown in B), it engages with the locking claw 8a of the cartridge lid 8 to lock the cartridge lid 8 in the closed state. With the cartridge lid 8 closing the insertion opening 6a, the inner surface of the cartridge lid 8 is
21 is engaged with the engaging portion 224 to move the eject member 221 in the direction of the arrow in FIG.
As shown in FIG. 4 (A), the film cartridge 4 is separated from the peripheral portion of the leading end thereof. As a result, the loading of the film cartridge 4 into the film cartridge chamber 6 is completed. Also in such a second embodiment, the same effect as that of the first embodiment can be obtained.

In the second embodiment, the case where the click stop mechanism is not provided on the support shaft 10a of the knob 10 has been described, but the click stop mechanism may be provided. Further, the present invention is not limited to the configuration shown in the above embodiment, and various modifications can be made without departing from the scope described in the claims.

[0021]

As is apparent from the above description, the present invention is
A film cartridge chamber formed in the camera body, into which a film cartridge is loaded, a lid member that opens and closes a film cartridge insertion opening of the film cartridge chamber, and a hook portion that is hooked at the tip of the film cartridge that is inserted into the film cartridge chamber. With possible hooks,
An eject member disposed in the camera body so as to be movable in the insertion / removal direction of the film cartridge; an urging means for urging the eject member in a direction of pushing the film cartridge out of the film cartridge chamber; and the camera body. A lid lock mechanism provided between the lid member and the lid member, and a lid opening / closing operation member provided outside the camera body to operate the lid lock mechanism. The lock mechanism is configured to include a lock lever rotatably supported on the camera body side, and the lock lever is engaged with the eject member in a state where the lid member is closed and locked, and the eject member is filmed. Move in the insertion direction of the cartridge to separate the hook from the leading edge of the film cartridge. Be engaged portion is formed.

Further, the present invention is formed on a camera body,
A film cartridge chamber in which a film cartridge is loaded, a lid member for opening and closing a film cartridge insertion opening of the film cartridge chamber, and a hooking portion capable of being hooked at the tip of the film cartridge inserted in the film cartridge chamber. An eject member disposed in the camera body so as to be movable in the inserting / removing direction of the film cartridge; and an urging means for urging the eject member in the direction of pushing the film cartridge out of the film cartridge chamber. In the ejecting device of the film cartridge type camera, the eject member is engaged with a lid member in a state where the film cartridge insertion opening is closed to move the eject member in the insertion direction of the film cartridge, and the hook portion is filmed. Cartridge tip Eggplant engaging portion release is made.

Therefore, the force of the eject member in the film cartridge pushing-out direction does not act on the film cartridge loaded in the film cartridge chamber, and the spool rotation axis of the film cartridge loaded in the film cartridge chamber is not inclined. As a result, the film can be sent out and wound up smoothly.

[Brief description of drawings]

1A and 1B show a first embodiment of an ejecting device of a film cartridge type camera according to the present invention, FIG. 1A being a sectional view when a film cartridge is loaded, and FIG. It is sectional drawing which follows the -B line.

FIG. 2A is a sectional view of the first embodiment when a film cartridge is taken out, and FIG. 2B is a sectional view of FIG.
It is sectional drawing which follows the -B line.

FIG. 3A is a sectional view of the first embodiment when a film cartridge is taken out, and FIG. 3B is a sectional view of FIG.
It is sectional drawing which follows the -B line.

4A and 4B show a second embodiment of the ejecting device of the film cartridge type camera according to the present invention, wherein FIG. 4A is a sectional view when a film cartridge is loaded, and FIG. 4B is a sectional view of FIG. It is sectional drawing which follows the -B line.

FIG. 5A is a sectional view of the second embodiment when a film cartridge is taken out, and FIG. 5B is a sectional view of FIG.
It is sectional drawing which follows the -B line.

FIG. 6A is a sectional view of the second embodiment when a film cartridge is taken out, and FIG. 6B is a sectional view of FIG.
It is sectional drawing which follows the -B line.

FIG. 7 is a perspective view showing a schematic configuration of a film cartridge type camera.

[Explanation of symbols]

 2 camera body 4 film cartridge 6 film cartridge chamber 8 cartridge lid (lid member) 8a locking claw 10 lid opening / closing knob (lid opening / closing member) 14 cover member 22 eject mechanism 221 eject member 221a latching portion 223 spring (biasing means) ) 224 engaging part 24 click stop mechanism 26 lock lever 28 engaging part

Claims (4)

[Claims] 1. A film cartridge chamber formed in a camera body, into which a film cartridge is loaded, a lid member for opening and closing a film cartridge insertion opening of the film cartridge chamber, and a film cartridge inserted in the film cartridge chamber. An eject member having a hooking portion that can be hooked at a tip end thereof, the ejecting member being disposed in the camera body so as to be movable in the inserting / removing direction of the film cartridge; and the ejecting member, the film cartridge from the film cartridge chamber. Energizing means for urging in a pushing direction, a lid lock mechanism provided between the camera body and the lid member, and a lid opening / closing operation member provided outside the camera body for operating the lid lock mechanism. In the ejecting device of the film cartridge type camera including The lid lock mechanism is configured to include a lock lever rotatably supported on the camera body side, and the lock lever engages with the eject member in a state where the lid member is closed and locked to the eject member. An ejecting device for a film cartridge type camera, characterized in that an engaging portion is formed which moves the hook in the insertion direction of the film cartridge to separate the hook portion from the front end portion of the film cartridge. 2. A film cartridge chamber formed in a camera body, into which a film cartridge is loaded, a lid member for opening and closing a film cartridge insertion opening of the film cartridge chamber, and a film cartridge chamber to be inserted into the film cartridge chamber. An eject member having a hooking portion that can be hooked at a tip end thereof, the ejecting member being disposed in the camera body so as to be movable in the inserting / removing direction of the film cartridge; and the ejecting member, the film cartridge from the film cartridge chamber. An ejecting device for a film cartridge type camera, comprising: an urging means for urging in a pushing direction; and the eject member, which is engaged with a lid member in a state where the film cartridge insertion opening is closed, to attach the eject member to the film cartridge. Moved in the insertion direction of The releasing eggplant engaging portion from the tip portion of the hook portion the film cartridge is formed, ejecting apparatus of the film cartridge type camera, characterized in that. 3. A lid lock mechanism is provided between the camera body and the lid member, and a lid opening / closing operation member for operating the lock mechanism is provided outside the camera body. An ejecting device of the film cartridge type camera described. 4. The ejecting device for a film cartridge type camera according to claim 1, wherein the closed position and the open position of the lid opening / closing operation member are held by a click stop means.