JPH10161212A - Camera structure - Google Patents

Abstract

(57) [Abstract] [Purpose] In a camera using a film cartridge in which a photographic film such as a silver halide film is stored in a roll form, a novel camera capable of realizing further miniaturization, especially in the left-right direction of the camera. Providing structure. [Structure] A film take-up spool (43) for taking out a film (F) from a columnar film cartridge (FC)
The camera body (11) is provided so as to be inclined with respect to a plane perpendicular to the photographing optical axis (O), and a cartridge chamber (41) for accommodating a film cartridge is provided in the camera body. And an engagement rotation projection (66) that engages with one end (SE) of a spool provided in the film cartridge and rotates the spool projects from the upper end of the cartridge chamber toward the cartridge chamber. And a strobe light emitting unit (3) is provided in a space formed in front of the engagement rotation protrusion.
Camera structure provided with 2).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera structure of a camera using a cartridge type film in which a photographing film such as a silver halide film is stored in a roll shape as a film to be used.

[0002]

2. Description of the Related Art A camera using a silver halide film as a photographic film generally uses a film cartridge containing a silver halide film in a roll, such as a CH135 or a recently developed IX240.

In this type of camera, a cartridge chamber for storing a film cartridge and a spool chamber for storing a film delivered from the film cartridge stored in the cartridge chamber are arranged on the left and right sides of the camera body. Is arranged between the cartridge chamber and the spool chamber substantially in parallel with the left-right direction of the camera body.

In a camera having such a conventional structure,
In order to secure an optical path from the taking lens to the film surface between the cartridge chamber and the spool chamber, the distance between the cartridge chamber and the spool chamber in the left and right direction of the camera must be at least a certain distance. In particular, there is a limit in reducing the width of the camera in the left-right direction.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and is directed to a camera using a film cartridge in which a photographic film such as a silver halide film is housed in a roll shape. It is an object of the present invention to provide a novel camera structure capable of realizing further miniaturization of the camera.

[0006]

SUMMARY OF THE INVENTION In a camera structure according to the present invention, in a camera with a built-in strobe in which a film coming out of a columnar film cartridge is wound by a film winding spool, a camera body is inclined with respect to a plane orthogonal to a photographing optical axis. A cartridge chamber for housing a film cartridge is provided in the front end of the camera body,
An engagement rotation projection that engages with one end of a spool provided on the film cartridge and rotates the spool is projected from an upper end of the cartridge chamber toward the cartridge chamber, and is provided in front of the engagement rotation projection. A strobe light emitting section is provided in the formed space.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on illustrated embodiments. FIG. 1 is a front view of a lens shutter camera 10 in a photographable state to which the present invention is applied, viewed from the front of a photographing optical axis O. FIG. 2 is a view of the camera 10 taken along line II-II in FIG. FIG. 3 shows a cross-sectional view, and FIG.
FIG. 4 shows a cross-sectional view of the camera 10 along the line I, and FIG.
When the camera 10 shown in FIG.
FIG. 2 shows a cross-sectional view of the camera 10 along the line II-II.

The camera 10 is a single focus type lens shutter type compact camera in which a finder optical system and a photographing optical system are independent of each other, and has a substantially box-shaped camera body 11. 1, 2, and 3 show the camera 10 in a photographable state, and FIG. 4 shows the camera 10 in a housed state. A release button 13 (see FIG. 1) is provided near one end of the upper surface of the camera body 11.

Above the front wall 11a of the camera body 11, the strobe window 15, the AF ranging window 16, the finder objective window 17, and the front window 11a are arranged in order from the left as viewed from the front of the camera (upward in FIG. 2). A photometric window 18 is provided. A rectangular opening 20 is formed in the front wall 11a of the camera body 11 below each of the windows.

On the front wall 11a of the camera body 11,
A lens master plate 23 for opening and closing the opening 20 is provided.
This lens master plate 23 is axially attached to the front wall 11a via a shaft 22 extending along one side of the opening 20 in the vertical direction of the camera 10 (vertical direction in FIG. 1). It is rotatable between the position and the closed position shown in FIG.

A cover plate 25 is mounted on the front wall 11a of the camera body 11 via a shaft 24 extending vertically along the other side of the opening 20 opposite to the one side. The cover plate 25 is rotatable between an open position shown in FIGS. 1 to 3 and a closed position shown in FIG.
Further rotation from the open position to the open direction (counterclockwise direction in FIG. 2) is restricted. FIG. 5 shows a state where the lens master plate 23 is at the closed position and the cover plate 25 is at the open position. The lens master plate 23 and the cover plate 25 are each manually opened and closed.

When the cover plate 25 is moved to the closed position after the lens parent plate 23 is moved to the closed position, the cover plate 25 covers the front surface of the lens parent plate 23 to protect the photographing lens 30 and thereby the camera. 10 is in the housed state shown in FIG. In this stored state, the cover plate 25 and the lens master plate 23 are positioned on the front of the camera body 11 (the front of the front wall 11a).
And the rear surface 11b of the camera body 11
Becomes substantially parallel. Further, when the lens master plate 23 is moved to the open position after the cover plate 25 is moved to the open position as shown in FIG. 5, the camera 10 is brought into the photographable state shown in FIGS.

When moving the lens main plate 23 in the closed position from the opened state of the cover plate 25 to the open position, the lens main plate 23 slides its end 23a against the inner side surface 25a of the cover plate 25. While rotating about the shaft 22 while reaching the open position, the end 23a engages with the vertical groove 25b formed on the inner surface 25a of the cover plate 25 and is supported at the open position. That is, the open position of the lens master plate 23 is
5b.

The lens master plate 23 is provided with a photographic lens 30 that constitutes a photographic optical system of the camera 10. The taking lens 30 is supported by an AF / AE shutter unit 32 (indicated by a two-dot chain line) fixed to the back surface 23 c of the lens master plate 23, and has a circular opening 23 b formed substantially at the center of the lens master plate 23. Through the lens main plate 23. The taking lens 30 is provided so that its taking optical axis O is orthogonal to the lens master plate 23. Therefore, in the photographable state, the photographing optical axis O is inclined with respect to the left-right direction of the camera 10 (direction D in the figure).

Between the upper edge of the lens parent plate 23 and the front wall 11a and between the lower edge of the lens parent plate 23 and the front wall 11a, the photographing from the photographing lens 30 to the film surface Fe is performed. A bellows (not shown) made of a rubber material or the like for shielding the optical path is provided. With this bellows,
External light does not enter the inside of the camera 10 in a photographable state where both the lens master plate 23 and the cover plate 25 are located at the open position. The upper and lower bellows are folded inward and stored in the camera body 11 in a storage state in which the lens master plate 23 and the cover plate 25 are both located at the closed position.

As shown in FIG. 3, inside the camera body 11, the strobe window 15, the AF ranging window 16, the finder objective window 17, and the photometry window 18 are located behind the camera.
A strobe light emitter 32, an AF sensor module 33, a finder optical system 34, and a photometric sensor module 35 are provided. The optical axes of the strobe light emitter 32, the AF sensor module 33, the finder optical system 34, and the photometric sensor module 35 are substantially parallel to the photographing optical axis O. That is, the optical axes of the strobe light emitter 32, the AF sensor module 33, the finder optical system 34, and the photometric sensor module 35 are also the same as the photographing optical axis O.
The camera 10 is inclined with respect to the left-right direction.

The finder optical system 34 has a shape in which the optical axis is bent at two right angles in the plane of FIG. 3 as shown in FIG. The eyepiece side end 34b is connected to the camera body 1
1 finder eyepiece window 14 formed above rear surface 11b
(Fig. 3).

On the left and right inside the camera body 11, a spool chamber 40 and a cartridge chamber 41 are formed. That is, the spool chamber 40 is formed in the rear end (left end in FIG. 2) of the camera body 11 inclined with respect to a plane orthogonal to the photographing optical axis O, and the cartridge chamber 41 is formed in the camera body 11. 11 is formed in the front end (the right end in FIG. 2). Inside the cartridge chamber 41, a columnar film cartridge FC loaded in a predetermined direction from a film cartridge insertion port 60 provided on the bottom surface of the camera body 11 is housed, while inside the spool chamber 40,
A winding spool 43 for winding the film F sent from the film cartridge FC is provided.

As shown in FIG. 6, the film cartridge insertion opening 60 is opened and closed by an opening / closing lid 62 which is attached to the bottom of the camera body 11 via a shaft 61. Open / close lid 6
2, an engagement claw 62a is provided inside the opening / closing lid 6;
2 is closed, the engaging claw 62a is
The opening / closing lid 62 is engaged with a locking portion (not shown) provided on one side.
Is locked. In FIG. 6, the opening / closing lid 6 is in a closed state.
2 is indicated by a solid line, and the open / close lid 62 in an opened state is indicated by a dashed line.

The cartridge chamber 41 accommodates the camera body 11
It is surrounded by a frame member 65 fixed inside. At the upper end of the frame member 65, a convex portion 65a projecting upward is formed. A circular opening 65b is provided substantially at the center of the convex portion 65a.
A fork (engagement rotation projection) 66 is protruded toward the inside of the cartridge chamber 41 through the circular opening 65b. The fork 66 holds the cartridge chamber 41
When the film cartridge FC is loaded in the predetermined direction, the one end (upper end in FIG. 6) SE of the spool provided in the film cartridge FC is engaged.

The upper wall 11d of the camera body 11 and the projection 65
A fork drive gear 70 is provided in a space formed between the two. The rotation of the motor 52 is transmitted to the fork drive gear 70 via a predetermined gear train (not shown). The fork drive gear 70 is connected to the fork 6
6 are coaxially and integrally provided.

The convex portion 65 inside the camera body 11
The strobe light emitter 32 is disposed in a space formed in front of the fork 66, that is, in a space formed in front of the fork 66.
The strobe light emitter 32 includes a xenon tube 32a, a reflector 32b, and a frame member 32c that holds the xenon tube 32a and the reflector 32b, and is fixed to an upper portion of the frame member 65. Thus, by arranging the strobe light emitter 32 in the space formed in front of the fork 66, the limited space in the camera body 11 is effectively utilized. That is, with this arrangement structure, the camera 10
Has been reduced in size.

A strobe circuit (circuit block) 71 electrically connected to the xenon tube 32a is provided in a space formed behind the convex portion 65a, that is, a space formed behind the fork 66, inside the camera body 11. Are located. Thus, by disposing the strobe circuit 71 in the space formed behind the fork 66, the camera body 1
The limited space within 1 is effectively used. That is, similarly to the arrangement structure of the strobe light emitter 32, the size of the camera 10 is reduced by the arrangement structure of the strobe circuit 71.

The distance L (see FIG. 2) between the spool chamber 40 and the cartridge chamber 41 is larger than the horizontal length (left-right length in FIG. 2) of the rectangular photographing aperture (aperture) 46 that determines the screen size. Has been made smaller. More specifically, the shooting aperture 46 has a size of 24 mm × 36 mm, so that the horizontal length of the shooting aperture 46 is 36 mm, and the distance L
Is about 28 mm.

Between the spool chamber 40 and the cartridge chamber 41 inside the camera body 11, a frame member 45 surrounding the photographing optical path extending from the opening 20 into the camera body 11 is fixed. The frame member 45 constitutes a part of the frame member 65. At the rear end of the frame member 45, an aperture frame 47 having the photographing opening 46 is integrally formed. The aperture frame 47 extends in parallel with the lens master plate 23 located at the open position. That is, the aperture frame 47 extends in the vertical direction of the camera 10 (vertical direction in FIG. 1) and is provided on a plane inclined with respect to the horizontal direction of the camera 10. Further, since the lens parent plate 23 and the aperture frame 47 located at the open position are parallel to each other, the optical axis O of the photographing lens 30 in a photographable state extends perpendicular to the aperture frame 47.

A film guide rail (not shown) extending in the left-right direction of the camera 10 is provided on the upper and lower sides of the aperture frame 47 with the photographing opening 46 interposed therebetween. 50 is the aperture frame 47
And are provided in parallel. The film F travels between these film guide rails and the pressure plate 50. Therefore,
The exposure surface of the film F, which is located on the pressure plate 50 and faces forward from the photographing opening 46, that is, the film surface Fe exposed by the shutter release, is parallel to the lens master plate 23 located at the open position. The camera 10 is located on a plane inclined with respect to the left-right direction of the camera 10. Also, film surface F
e is the film cartridge FC and the take-up spool 43
, And a rear surface 11b of the camera body 11 is substantially parallel to the plane C (shown by a dashed line in FIG. 2).

As shown in FIGS. 2 to 4, the space surrounded by the frame member 45 between the front surface of the camera body 11 and the film surface Fe is formed as a substantially wedge-shaped space 48. When the lens master plate 23 is closed, as shown in FIG.
Is stored inside.

A pressure plate 50 is provided inside the camera body 11.
The camera 1 is located at a position close to the end on the spool chamber 40 side of the camera 1.
A guide roller 51 extending in a vertical direction of 0 is provided rotatably. The film F sent from the film cartridge FC and reaching the spool chamber 40 through the space between the film guide rail and the pressure plate 50 is wound around the guide roller 51 and wound around the spool 43.

A pressure plate 50 is provided inside the camera body 11.
, A substantially wedge-shaped space 49 formed between the film surface Fe and the rear surface 11b of the camera body, a motor 52 and a condenser 54 each having a columnar shape are arranged. The motor 52 is a drive motor used for winding and rewinding the film F, and the condenser 54 is a strobe condenser for the strobe light emitter 32.

A battery storage chamber 56 is formed in the camera body 11 in a space between the spool chamber 40 and the camera body 11. The battery storage chamber 56 is provided on the bottom surface of the camera body 11. A rechargeable plate-gum battery 58 (NiCad battery, nickel-metal hydride battery, lithium ion battery, etc.) loaded in a predetermined direction from a battery insertion slot (not shown) is accommodated.

In the camera 10 having the above structure, the film surface Fe exposed by the shutter release is not formed in a structure parallel to the left-right direction (D direction in the figure) of the camera 10 but is a plane inclined with respect to the same direction. Since it is arranged on the upper side, the distance L between the spool chamber 40 and the cartridge chamber 41
Is significantly reduced more than the horizontal length of the photographing opening 46, that is, the horizontal length of the film surface Fe. Due to the reduction of the interval L, the camera 10 at the time of storage is
Is reduced in the width in the left-right direction.

The camera 10a shown in FIG.
This is an embodiment in which the arrangement of all the members 0 is reversed left and right.
In this figure, members that are substantially the same as the members of the camera 10 are denoted by the same reference numerals. The same effect as the camera 10 can be obtained by the camera 10a.

In this camera 10a, as shown in FIG. 8, since the film cartridge FC housed in the cartridge chamber 41 is arranged upside down as in the case of the camera 10, the projection 65a provided in the camera 10 is provided. Is not formed.

In the cameras of the above embodiments, the fork 6
Although the structure in which the strobe circuit 71 is arranged in the space formed behind the 6 is adopted, a structure in which another circuit block is provided instead of the strobe circuit 71 may be used.

In the cameras of the above embodiments, the film cartridge insertion opening 60 and the opening / closing lid 62 are connected to the camera body 1.
Although the structure is provided at the bottom of the camera body 11, the structure may be provided at the rear surface 11b side of the camera body 11.

The film cartridge FC used in the cameras of the above embodiments may be any type of film cartridge as long as a silver film such as CH135 or IX240 is stored in a roll. When the CH135 film cartridge is used, the lower end of the fork 66 is formed in a fork shape as shown in FIG. 6, but when the IX240 film cartridge is used, the fork 66 is shown in FIG. It is not formed in such a fork shape, but is formed as a rod-shaped member having a predetermined shape. That is, the camera 10 of the present invention is not limited to the shape of the fork 66.

The cameras in the above embodiments are single-focus type lens shutter compact cameras. However, the present invention is not limited to this, and is a multi-focus type camera incorporating a bifocal switching lens, a zoom lens, and the like. The present invention may be applied to a lens shutter type compact camera. Also,
The present invention may be applied to a single-lens reflex camera.

[0038]

As described above, according to the camera to which the camera structure of the present invention is applied, in a camera using a film cartridge in which a photographic film such as a silver halide film is stored in a roll shape, particularly in the lateral direction of the camera. Can be further reduced in size.

[Brief description of the drawings]

FIG. 1 is a front view of a lens shutter type camera in a photographable state to which the present invention is applied as viewed from the front of a photographing optical axis.

FIG. 2 is a cross-sectional view of the camera taken along the line II-II of FIG.

FIG. 3 is a sectional view of the camera taken along the line III-III in FIG. 2;

FIG. 4 is a sectional view showing a housed state of the camera.

FIG. 5 is a cross-sectional view showing a state where a lens parent plate is at a closed position and a cover plate is at an open position.

FIG. 6 is a sectional view of the camera taken along the line VI-VI of FIG. 3;

FIG. 7 is a sectional view showing another embodiment of a camera to which the present invention is applied.

FIG. 8 is a sectional view of the camera taken along line VIII-VIII in FIG. 7;

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 camera 11 camera body 13 release button 11 a front wall 20 opening 23 lens main plate 23 a opening 25 cover plate 30 shooting lens 32 shutter unit 40 spool chamber 41 cartridge chamber 43 winding spool 45 frame member 46 shooting opening 47 aperture frame 50 pressure plate 51 guide Roller 52 Motor 54 Capacitor 58 Sheet gum battery 60 Film cartridge insertion opening 62 Opening / closing lid 65 Frame member 66 Fork (engagement rotating projection) 70 Fork drive gear 71 Strobe circuit (circuit block) D Left and right direction of camera Fe Film surface exposed by shutter release L Spacing between spool chamber and cartridge chamber O Imaging optical axis

Claims (5)

[Claims] 1. A camera with a built-in strobe in which a film coming out of a columnar film cartridge is wound by a film winding spool, wherein a camera body is provided so as to be inclined with respect to a plane orthogonal to a photographing optical axis. A cartridge chamber for housing is provided in a front end portion of the camera body, and an engagement rotation projection that engages with one end of a spool provided on the film cartridge and rotates the spool is provided from an upper end of the cartridge chamber to the cartridge chamber. And a strobe light-emitting portion is provided in a space formed in front of the engagement rotation protrusion. 2. The camera structure according to claim 1, wherein
Further, a film surface located between the film cartridge and the film winding spool intersects a plane connecting the central axes of the film cartridge and the film winding spool, and a rear surface of the camera body is defined as a film cartridge. A camera structure characterized in that the film winding spool is provided substantially parallel to the plane connecting the respective central axes of the film winding spools. 3. The camera structure according to claim 1, further comprising a predetermined circuit block provided in a space formed behind said engagement rotation projection. 4. The camera structure according to claim 3, wherein the circuit block is a strobe circuit. 5. The camera structure according to claim 1, wherein a gear receiving rotation is provided in a space formed between an upper wall of the camera body and the cartridge chamber. A camera structure in which the engagement rotation projection is provided coaxially and integrally with the gear.