JPH0480734A - Camera - Google Patents

Abstract

PURPOSE:To make a cartridge loading port conspicuous while a camera is prevented from being made large-sized and to eliminate possibility that a battery or a film is made to drop from the camera main body by unprepared opening because the cartridge loading port is inconspicuous by constituting the camera so that a film cartridge chamber is made to project to a side from the side surface of the camera main body. CONSTITUTION:By operating a lock releasing member 27, lock between the cartridge chamber 1 and the camera main body 2 by a lock releasing member 13 is released. Then, the cartridge chamber 1 can be made to project to the side from the side surface of the main body 2 by the elasticity of an elastic member 26 through a link mechanisms 20. Therefore, the cartridge chamber 1 can be largely made to project from the main body 2. Thus, since the cartridge loading port can be made conspicuous and the cartridge chamber 1 is made to go in and out with respect to the camera main body 2 by the link mechanism 20, the camera is prevented from being made large-sized and misoperation is prevented from occurring at the same time.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to so-called drop-in loading, in which a film cartridge is dropped into a camera body at a loadable position in the film cartridge chamber and loaded. Regarding the system camera.

Conventional Technology In the past, in this type of drop-in loading type camera, it was difficult to distinguish between the battery compartment and the film cartridge compartment, and there was a possibility that the battery or film could fall out of the camera body if the compartment was opened inadvertently. Ta.

Problems to be Solved by the Invention Therefore, a method of moving the cartridge chamber itself in and out from the camera body was devised. However, this method tends to increase the size of the camera.

Furthermore, drop-in loading type cameras are known in which a film cartridge is loaded from the bottom of the camera body, but if a tripod is attached to the bottom, it may be difficult to insert or remove the cartridge. On the other hand, when the cartridge lid is provided on the top surface of the camera body, there is a problem in that it becomes difficult to arrange camera parts (for example, a flash device, etc.) above the cartridge chamber.

Therefore, an object of the present invention is to solve the above-mentioned problems, and it is possible to make the cartridge loading slot conspicuous while preventing the camera from increasing in size, and also to prevent the loading slot from being placed on the bottom or top of the camera body. The object of the present invention is to provide a camera that can solve the various problems mentioned above.

Means for Solving the Problems In order to achieve the above object, the present invention is configured such that the film cartridge chamber protrudes laterally from the side surface of the camera body. That is, in a camera in which the film cartridge is loaded by dropping it into the camera body, the film cartridge can be moved between a position where the film cartridge can be loaded, which protrudes laterally from the side of the camera body, and a storage position within the camera body. a film cartridge chamber; a link mechanism that connects the film cartridge chamber and the camera body so that the film cartridge chamber can move approximately parallel to the camera body; and a link mechanism that urges the film cartridge chamber in a projecting direction. The film cartridge is configured to include an elastic member, a locking member that prevents movement of the film cartridge chamber at the storage position of the film cartridge chamber, and a lock release member that unlocks the locking member.

In the above configuration, when the film cartridge chamber is in the storage position, a planetary gear is provided for connecting the drive member of the camera body and the film feeding shaft of the film cartridge, and the planetary gear is connected to the drive member. It can also be configured such that it is biased by a biasing member in the direction in which it is connected to the base plate.

Effects and Effects of the Invention According to the above configuration, by operating the lock release member, the lock between the cartridge chamber and the camera body by the lock member is released, and the cartridge chamber is opened by the elastic force of the elastic member. It can be made to protrude laterally from the side surface of the camera body via the link mechanism. Therefore, the cartridge chamber can be made to protrude significantly from the camera body, and the cartridge chamber, that is, the cartridge loading port can be made more noticeable. Further, since the cartridge chamber is moved in and out of the camera body by the link mechanism, it is possible to prevent the camera from becoming larger. In addition, since the cartridge chamber is entered and exited from the side of the camera body, there is no opening for the cartridge chamber on the top or bottom of the camera body, and the opening is formed at the bottom of the camera body, making it difficult to insert and remove the cartridge. Become,
It is possible to prevent problems such as restrictions on the arrangement of other camera parts due to the opening being formed on the top surface of the camera body.

Embodiments of the present invention will be described in detail below with reference to FIGS. 1-10.

A camera according to this embodiment is shown in FIGS. 1 and 2.

The camera of this embodiment is suitable for thrust cartridges. The cartridge loading method in the camera body 2 of this camera is a drop-in method in which the cartridge 10 is dropped into the cartridge chamber 1 in its axial direction. Conventionally, the lid over the opening of the cartridge chamber was removed to expose the opening of the cartridge chamber, and the cartridge was loaded through the opening. In contrast, in this embodiment, the cartridge chamber itself is made to protrude from the camera body 2 to expose the loading port of the cartridge chamber I.

1.2 are external views of the camera according to the present embodiment, showing the stored state and the protruded state of the cartridge chamber 1, respectively. The camera shown in the figure has a release button 3 on the top surface of the camera body 2, an autofocus (AF) floodlight window 4 on the front, a finder window 5, an AP light receiving window 6, a lens barrel 7, a strobe light emitting unit 8, The cartridge chamber eject button 9 is provided with a cartridge chamber outlet 2a on the right side. The cartridge chamber inoect button 9 is a button for changing the cartridge chamber 1 from its storage state to its protruding state.

On the upper surface of the opening of the cartridge chamber 1, grooves 11, 11 consisting of circular notches are provided on the front and rear surfaces of the film cartridge chamber 1, respectively, so that the film cartridge can be easily taken out.

Next, as shown in FIG. 3.4, the ejection mechanism of the cartridge chamber 1 will be explained. The cartridge chamber 1 is suspended from the camera body 2 by a link mechanism 20 so as to be movable laterally. FIG. 3.4 shows a state in which the cartridge chamber l is housed in the camera body 2 and a state in which it is projected from the camera body 2, respectively.

The link mechanism 20 is provided with a pair of levers 21, 22 on the front and rear surfaces of the cartridge chamber 1, and the cartridge chamber 1 is sandwiched between the two pairs of levers 21, 22, 21, 22, so that the cartridge chamber 1 is not bent or twisted when ejected. Try to maintain strength. Of each pair of levers 21 and 22, the first lever 21 is rotatably supported at one end or on the camera body 2, and its center portion is connected to the second lever 21 of each pair of levers 21 and 22. The other end is formed at the lower end of the cartridge chamber l on the camera body side, and is engaged with a T-shaped cam groove 12 and a pin 23 so as to be vertically movable. Each of the second levers 22 is rotatably supported at one end thereof or at the upper end of the cartridge chamber l on the side of the camera body.
The other end is vertically movably connected to a cam groove 24 at the lower end of the camera body 2 on the cartridge chamber side by a pin 25. The end of each lever 21, 22 on the cam groove engaging side is connected to the cam groove 12.
24, the cartridge chamber I suspended by the link mechanism 20 protrudes from the right side of the camera body, as shown in FIGS. 3 and 4. Each of the above second levers 22
The spring 26 is connected to the camera body in the connecting side.
The cartridge chamber l is always urged in the protruding direction.

The pin 23 at the engaging end of one of the levers 21 with the cam groove 12 is connected to the locking claw 13a of the locking lever 13 which is rotatably supported in the cartridge chamber 1 when the cartridge chamber 1 is stored in the cartridge chamber 1. is locked. This locking lever 13 is always urged to rotate in a direction in which it locks onto the pin 23 by a spring (not shown). The locking is released when the protrusion 27a of the lock release lever 27 that moves together with the eject button 9 of the cartridge chamber l comes into contact with the lower end of the locking lever 13 as the eject button 9 is operated in the ejecting direction. This is done by rotating the locking lever 13 counterclockwise (see the locking lever 13 indicated by the two-dot chain line in FIG. 3).

Further, when the cartridge chamber l moves from the stored state to the protruding state, as shown in FIGS. and part of its drive mechanism also cut off the drive path and move together with the cartridge chamber.

Figures 5.7 and 6.8 respectively show the retracted state and the extended state of the cartridge chamber l. The fork 30, which can be engaged with the film delivery shaft 10a of the film cartridge IO, can be moved forward and backward into the film cartridge storage chamber ld of the cartridge chamber 1 by a spring 32, and rotates integrally with the fork drive gear 31. A planetary gear 33 is coupled to the fork drive gear 31 by a planetary plate 35. The planetary gear 33 is pressed by a spring 36 toward a position where it engages with a drive gear 34 connected to a drive device on the camera body side within the cartridge chamber I, and the cartridge chamber 1 is housed in the camera body 2. At this time, if the engagement between the planetary gear 33 and the drive gear 34 is defective, the planetary gear 33 is made to be able to retreat against the biasing force of the spring 36. The retracted planetary gear 33 is pressed around the drive gear 32 by the spring 36 stretched between its rotating shaft 33a and the protrusion 1a in the cartridge chamber l, so that the drive gear 34 begins to rotate. and immediately engage properly,
The driving force from the driving gear 32 can be transmitted to the fork driving gear 31 via the planetary gear 33.

The rotation shaft 33a of the planetary gear 33 is inserted into a regulation hole 41 of a regulation plate (not shown) disposed below the cartridge chamber l, and the rotation shaft 33a is inserted into the regulation hole 41 in the regulation hole 41.
By moving, the planetary gear 33 and the drive gear 32
The meshing is corrected.

On the other hand, a contact piece 31a is provided on the lower surface of the fork drive gear 31.
, 31a are integrally provided, and monitor the position of the fork 30 together with an encoder 38 on the opposing flexible base 37. The flexible top base 37 is also electrically connected to the camera body at the protruding position of the cartridge chamber l. That is, in the storage position of the cartridge chamber, the slack absorbing member 40, which is rotatably arranged around the retracted position of the fork 30, absorbs the slack when the cartridge is stored in the cartridge chamber.

That is, the slack absorbing member 40 is biased counterclockwise by the spring 39, and the flexi-nople base 3
The excess portion of 7 is rolled up by folding it using its curved both sides.

The cartridge chamber 1 has a square frame-shaped ISO detection member 45 that is slidable in the cartridge loading direction. The ISO detection member 45 is inserted into the opening 45a through the protrusions 1b and Ib of the cartridge chamber 1, and is held by pins Ic and 1c so as to be movable in the cartridge loading direction, and is prevented from being removed by the spring 48. It is urged in the opposite direction, that is, in the cartridge ejection direction.

The ISO detection member 45 has an arm portion 45b that protrudes into the cartridge chamber, and allows the film cartridge 10 to be inserted into the cartridge chamber. When loading the film cartridge IO, the arm portion 45b contacts the film sensitivity rib of the film cartridge IO and is pushed down together with the cartridge 10 in the cartridge loading direction. The ISO detection member 45 has a pair of contact pieces 46.
46, and an encoder base 47 is arranged at the opposite position on the camera body side, and when the contact pieces 46, 46 contact the encoder base 47, the film in the cartridge 10 loaded into the cartridge chamber 1 is electrically activated. Read the sensitivity. Furthermore, the contact piece 4646 is connected to the encoder base 47.
By contacting the cartridge chamber 1, it also serves to detect that the cartridge chamber 1 is housed in the camera body 2.

As shown in FIGS. 9 and 10, there is a hole If in the wall of the cartridge chamber l on the side of the camera body, through which a rib 5o for positioning the cartridge of the camera body 2 can move forward and backward. Said rib 5
0 passes through the hole If of the cartridge chamber 1 in the stored state in the cartridge chamber 1, and its tip slightly protrudes into the storage chamber ld of the cartridge chamber 1. The cartridge storage chamber 1d of the cartridge chamber 1 is slightly larger than the cartridge 10. This means that the rib 50 in the film feeding direction
This is because the cartridge IO enters the cartridge chamber 1 and moves the cartridge IO slightly to position it.

Inside the cartridge chamber 1, there are first and second leaf springs 51 that attach the cartridge IO loaded in the cartridge chamber 1 in the film feeding direction and in the direction perpendicular to the film surface, respectively.
, 52, and when the cartridge chamber l is in the protruding state by the leaf springs 51 and 52, the cartridge IO is
1. Press against each of the 52 opposing walls. On the other hand, when the cartridge chamber 1 is in the stored state, the cartridge 10 is pressed against the rib 50 that has entered the cartridge chamber 1 by the leaf springs 51 and 52. The opposing surface 1e of the second leaf spring 52 near the film exit of the cartridge chamber 1 is formed at a certain angle with respect to the film surface,
Due to this inclined surface 1e, the cartridge IO loaded in the protruding state of the cartridge chamber 1 is held in the state rotated slightly clockwise within the storage chamber Id.

Further, the position of the cartridge 10 in the loading direction is such that the third leaf spring 53 held on the camera body 2 so as to face above the cartridge chamber 1 in the stored state presses the cartridge IO toward the bottom side of the cartridge chamber 1. It will be decided. 3rd above
The leaf spring 53 protrudes into the movement path of the cartridge chamber 1, or its both ends protrude into the camera body, and does not protrude into the movement path of the cartridge chamber 1, so that it does not interfere with the movement of the cartridge chamber 1. It has become.

According to the above configuration, when the eject button 9 is slid with the cartridge chamber l stored in the camera body 2 (see FIG. 1), the lock release lever 27 moves together with the slide of the eject button 9, and locks the cartridge chamber l. The locking of the link mechanism 20 by the lever 13 is released, and the link mechanism 20 is extended by the urging force of the spring 26 to move the cartridge chamber l into the second position.
As shown in the figure, it is made to protrude to the side of the camera body 2. In this protruding state, the cartridge 1O is dropped into the storage chamber ld of the cartridge chamber 1. At this time, if the film feed shaft 10a of the cartridge 10 and the fork 30 do not engage properly, the fork 30 will fall against the biasing force of the spring 32, and the fork 30 will rotate when the fork drive gear 31 is subsequently driven. By doing so, it is properly engaged with the delivery shaft 10a.

After loading the cartridge IO into the storage chamber ld, push the cartridge chamber 1 toward the camera body by hand, and when the locking lever 13 is locked to the link mechanism 20, the cartridge chamber 1 is moved to the camera body 2. It is stored and kept inside. At this time, if the drive gear 32 of the camera body 2 and the planetary gear 33 below the cartridge chamber l do not mesh properly, the planetary gear 33 retreats against the biasing force of the spring 36, causing the above-mentioned When the driving gear 32 is driven and begins to rotate, the biasing force of the spring 32 allows the gear to engage properly.

According to the above embodiment, by operating the lock release lever 27 using the eject button 9, the lock between the cartridge chamber l and the camera body 2 by the locking lever 13 is released, and the cartridge chamber l is released. The biasing force of the spring 26 allows the camera body 2 to protrude laterally from the side surface of the camera body 2 via the link mechanism 20 . Therefore, the cartridge chamber 1 can be made to protrude significantly from the camera body 2, and the cartridge chamber 1, that is, the cartridge loading port can be made to stand out. Further, since the cartridge chamber 1 is moved in and out of the camera body 2 by the link mechanism 20, it is possible to prevent the camera from becoming larger. In addition, since the cartridge chamber l is made to enter and exit from the side of the camera body 2, there is no opening for the cartridge chamber on the top or bottom of the camera body 2, and the opening is formed in the bulge of the camera body to accommodate the cartridge. It is possible to prevent problems such as difficulty in putting in and taking out the camera, and restrictions on the arrangement of other camera parts due to the opening formed on the top surface of the camera body. Furthermore, when the cartridge chamber l is moved from the protruding state to the retracted state, even if there is a problem in the engagement between the planetary gear 33 on the cartridge chamber side and the drive gear 32 on the camera body side, the planetary gear 33 is not attached to the spring 36. In addition to being able to resist the forces and evacuate,
When the drive gear 32 starts to rotate, the planetary gear 33 can be immediately engaged with the drive gear 32 by the biasing force of the spring 36, so that when the cartridge chamber l is stored in the camera body, an unreasonable force is not applied to both gears and the gears can be properly engaged. It is possible to mesh together. Further, when the cartridge chamber 1 is housed in the camera body, the slack of the flexopull base 37 can be sufficiently absorbed by the slack absorbing member 40 to which the urging force of the spring 39 acts.

[Brief explanation of the drawing]

FIG. 1.2 is a perspective view of a camera according to an embodiment of the present invention in a stored state and a protruded state of a cartridge chamber, respectively;
Figures 3 and 4 are explanatory diagrams of the link mechanism in the retracted state and extended state of the cartridge chamber, respectively, and Figures 5 and 6 are explanatory diagrams of the camera body and the fork drive mechanism in the retracted state and extended state of the cartridge chamber, respectively. 7.8 is a vertical sectional view of the cartridge chamber, and FIGS. 9 and 10 are cross sectional views of the camera body and the cartridge chamber, showing the storage state of the cartridge chamber and the drive mechanism of the fork in the protruding frame, respectively. FIG. 3 is a cross-sectional view showing a state in which a cartridge is loaded into a cartridge chamber in a stored state and a protruded state of the chamber. 1. Cartridge chamber, 2. Camera body, 9. Eject button, 10. Film cartridge, 11. Spreading groove, 12.24 Cam groove, 13. Lock lever 20. Link mechanism, 21. 22.. 1. 2nd lever 23.25
...Pin, 26, 32.36, 39.48...Spring, 27...Lock release lever, 30...Fork,
3-fork drive gear, 33... Planetary gear, 34...
Drive gear, 35 · Planetary plate, 37 · · Flexinople base, 38 · Encoder, 40 · · Slack absorption member,
41... Regulation hole, 45 - ISO detection member, 46 - Contact piece, 47... Encoder, 50 Rib, 5152.53
...First. Second. Third leaf spring. Patent applicant Minolta Camera Co., Ltd. agent Patent attorney Maeda Ao and 2 others 11UX! l Figure 3 Figure 5

Claims (2)

[Claims] (1) Insert the film cartridge (10) into the camera body (2
), the film cartridge is movable between a film cartridge loadable position protruding laterally from the side of the camera body (2) and a storage position within the camera body. Room (1
), and the film cartridge chamber (1) is connected to the camera body (
2); a link mechanism (20) that connects the film cartridge chamber (1) and the camera body (2) so as to be able to move approximately parallel to the camera body; and an elastic member that biases the film cartridge chamber (1) in the projecting direction. a member (26); a locking member (13) for preventing movement of the film cartridge chamber (1) in the storage position of the film cartridge chamber (1); and a lock release member for unlocking the locking member (13). (27) A camera characterized by comprising: (2) When the film cartridge chamber (1) is in the storage position, the drive member (32) of the camera body (2)
) and the film feed shaft (10a) of the film cartridge (10), and the planet gear (33) is biased in a direction to connect with the drive member (32). Camera according to claim 1, characterized in that it is biased by a member (36).