JPH0645941Y2 - Film integrated camera - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention is a simple camera (film integrated type) in which a film is loaded by a maker side such as a camera for taking a picture (Konica's trade name) and the user can immediately take a picture. Camera).

[0002]

2. Description of the Related Art Roll film called 35mm film
J135 (JISK7519) is housed in a roll film J135 (JISK7529) in a light-tight state, and loaded into an appropriate camera for use.

However, in general cameras, since the film of the Patrone type as described above is used, it is necessary for the user to reciprocally feed the film in the camera. Therefore, the film rewinding device is indispensable. Met.

[0004]

On the other hand, in recent years, an inexpensive film-integrated camera which does not require a rewinding device as described above and has been put into practical use has been proposed.

This uses a cartridge containing 110 type film. Such a camera is composed of a main body unit to which a main mechanism such as a shutter charge mechanism is attached, and a front frame having a function of fixing and holding a taking lens to the main body unit and preventing incident of unnecessary light into the main body unit. Has been done.

A direct-view finder is provided by providing a through hole that expands from the rear surface of the main body unit toward the front wall of the front frame.

Then, the main body unit and the front frame are connected by screws, and the 110 cartridge is stored in a storage portion provided on the back surface of the main body unit, and its position is fixed by a leaf spring.

Further, the above-mentioned camera is housed in a paper case having an opening at an appropriate place such as an optical member necessary for a photographing operation, and the camera can be photographed in that state.

In the camera of the above type, even if the size of the through hole on the front frame of the finder is set to be substantially equal to the photographing range, the area of one film is small,
At the same time as it has the advantage of keeping the entire camera small, the area of one frame of the film is small, so when comparing the image taken on the full size screen of 35 mm film and the stretched print image, sharpness, graininess, etc. It has the disadvantage of being inferior in terms.

On the other hand, if an attempt is made to secure the size of the through-hole for the finder (on the front frame) so that a field of view substantially equal to the photographing range can be seen using, for example, a 35 mm film, the size of the entire camera will be increased. Is significantly increased, and although satisfactory is obtained in obtaining a good printed image, inconvenience remains in terms of size. However, by making the size of the through-hole smaller than that of the actual shooting range (for example, a size corresponding to 80% of the shooting range),
If you try to keep the size of the camera as a whole,
There is still a risk of causing an unnatural image to the composition intended by the operator.

The object of the present invention is to solve the above-mentioned problems and to secure a field of view frame substantially corresponding to the photographing range even with a camera using 35 mm film, and at the same time to increase the size of the entire camera. The object is to provide a film-integrated camera capable of preventing the above problems as much as possible.

[0012]

[Means for Solving the Problems] The above objects are: a first chamber for winding an unexposed film; a second chamber for winding an exposed film; the first chamber and the second chamber. A first unit having a screen frame formed between them; and a winding mechanism that is located above the screen frame and that winds up the unexposed film stored in the first chamber into the second chamber; A second unit for covering the front surface of the first unit and a part of the direct-viewing finder, which has a shooting-lens opening for exposing the shooting lens; and an objective opening forming a part of the direct-viewing finder. Which has an eyepiece opening which constitutes
In a film-integrated camera that has a third unit that covers the back surface of the unit, is preloaded with unexposed film, and takes out the exposed film after the end of shooting,
The objective opening is formed in the second unit and the eyepiece opening is formed in the third unit so as to be located above the screen frame and to the side of the hoisting mechanism. , One side on the outer surface of the objective opening formed in a substantially rectangular shape composed of four sides when viewed from an axial direction parallel to the optical axis of the photographing lens, when viewed from a direction perpendicular to the optical axis of the photographing lens, The present invention is achieved by a film-integrated camera, characterized in that it is formed closer to the third unit than the side on the outer surface facing the one side.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS.

The film F used in the camera of the embodiment is a 135 type film (hereinafter referred to as 35 mm film) having a patrone for roll film J135 as a container, as in a general camera. For example, in FIG. It is made into the form shown and loaded into the camera.

Here, one end of the film is fixed to a spool (film winding shaft) 2, and the cartridge 1
It is shown that it is pulled out to the limit from the above and is contained in the empty cartridge 3 in an unexposed state.

The leading end of the film F, which is indicated by the alternate long and short dash line, is detachably fixed by a locking claw (not shown) provided on the spool 4 in the cartridge 3.

In place of the cartridge 3, for example, a dedicated light-tight container in which the spool 4 does not protrude outside the cartridge or only the cartridge frame is used and the spool itself is not used can be prepared and used. Depending on the case, no container is required.

FIG. 2 is a developed view of an embodiment of a film-integrated camera according to the present invention (however, the first illustrated parts such as a film and a light-tight container are omitted), and reference numeral 10 Is a first unit which should be called a camera body and is provided with a film winding mechanism and the like. Reference numerals 20 and 30 denote a second unit (hereinafter sometimes referred to as a rear side outer frame) and a third unit (hereinafter, rear side) which cover the first unit 10 and are inseparably connected to the unit 10. Sometimes referred to as the outer frame). All the units are made of resin.

In the present specification, the term "integral inseparable" does not separate the units in a state in which the units are assembled (joined) and are in the appearance of a camera unless an excessive force is applied. As used herein to mean such an embodiment.

The first unit 10 has two storage chambers for film winding and film loading in the same plane on both sides of the screen frame 13 which is an exposure unit, and a cartridge chamber 11 and a light tight container chamber (film). A storage chamber 12 is provided so that the 35 mm film F stored in the storage container shown in FIG. 1 can be loaded.

The first unit 10 includes a taking lens 40.
The main functions of the film winding mechanism 50, the shutter charge mechanism 60, and the film counter mechanism 70 are incorporated.

Reference numeral 51 designates a hoisting knob projecting outside the camera, and 52.
Reference numerals 53 and 53 denote a ratchet wheel and a hoisting fork, which are coaxially integrated with the hoisting knob 51. As is well known, the spool 2 of the cartridge 1 is engaged with the hoisting fork 53.

Reference numeral 54 denotes a 16-tooth sprocket gear installed so that the tooth tips are exposed on the rail surface 14, and 55 is a cam plate having a pair of step portions 55a and a drive pin 55b at symmetrical positions on the outer periphery. It is mounted on a shaft S-1 so as to rotate integrally with the sprocket gear 54.

That is, when the winding knob 51 is rotated counterclockwise in FIG. 2, the spool 2 rotates to wind the film F into the cartridge 1 while the film F meshes with the perforation P. Gear 54
The cam plate 55 is driven and rotated counterclockwise via the.

Reference numeral 61 is a pair of elongated holes 100 drilled in itself, and slides left and right on the upper surface of the first unit with a mounting pin 62 fitted into the elongated hole provided in the first unit 10 as a guide. It is a shutter charge plate that is constantly biased to the right by a tension spring 63.

As will be described later, the position of the shutter charge plate after the photographing operation is displaced to the right of the drawing, but the movement to the illustrated position (shutter charge position) is performed as follows.

That is, as the winding knob 51 rotates, the cam plate 55 rotates counterclockwise together with the sprocket gear 54 via the film.

During the rotation, the pin 55b on the cam plate engages with the projecting portion 61a of the shutter charge plate to move the charge plate leftward in the figure against the tension spring 63, and the cam The protrusion of the release plate 56 before half the rotation of the plate, that is, before reaching the rotation amount for winding the film F by one screen.
56 'and notch 6 provided on the right end of the shutter charge plate
Locking with 1'is completed. The pin 55b at that point is a protruding part
It is in a position where it does not prevent the rightward movement of 61a again. A stop lever 64 is substantially T-shaped and is loosely fitted to the shaft S-2 arranged at an intermediate point. The stop lever 64 is provided on the arm unit 64c extending across the upper surface of the shutter charge plate and the first unit. It is biased counterclockwise by a tension spring 65 arranged between the pin 101 and the pin 101. The stop lever 64 is
The arm portion 64c is rotated clockwise by being pushed by the rising portion 61b provided on the shutter charge plate during the rightward movement of the shutter charge plate.

The middle arm 64a contacts the step 55a of the cam plate 55 with its tip every time the film is wound by a predetermined amount, and in this state, the stop pawl provided on the other arm 64b and the ratchet wheel 52 are connected. Engage to prevent the winding operation of the winding knob 51.

FIG. 2 shows a state in which the film F is wound up by one screen and the shutter charging is finished at the same time and the winding knob 51 is stopped. In this state, the release button 57 is pressed. When the release plate 56 is pushed down by this, the shutter charge plate 61 is unlocked, so that the shutter spring plate 61 is rapidly moved to the right by the action of the tension spring 63, and in the process, the falling portion 61c moves to the tip of the shutter blade 66. By hitting the pin 67a of the reversing member 67 provided, the chatter blade 6
6 is rotated clockwise to open the optical path of the taking lens 40 for exposure.

Since the shutter blade 66 is regulated by the tension spring 66a at a position where it blocks the optical path, the photographing lens 4
Immediately after fully opening the optical path of 0, the pin 67a is
When it is disengaged from the engagement with 61c, it automatically returns to the initial position and performs a predetermined exposure.

Further, when the shutter charge plate 61 is moved to the right side, a part of it is positioned above the projecting portion 56 'of the release plate 56, and the shutter charge plate 61 is moved upward by a biasing means (spring) not shown. Prevents the release plate from moving to the initial position.

That is, unless film winding is performed,
The shutter button 57 is maintained in a hole 28 provided in the front outer frame 20 so as not to be operated. The reference numeral 200 is the winding knob 51.
It is a reverse rotation prevention claw that blocks the clockwise rotation of.

Further, the number of photographable films F is displayed in the window 26 of the second unit 20.
The 70 index board 71 indicates the remaining number. That is, the gear 72 fixed to the shaft of the sprocket gear 15 is integrated with the index board 71 and has the number of teeth of the gear 72.
The gear wheel 73 meshes with one less than ½ of the above, and every time the sprocket gear 54 rotates half a turn, the index plate 71
The rotation stop position is shifted to one tooth and the designated number is sequentially reduced.

The second unit 20 is mounted on the front surface of the first unit 10 incorporating the main functions of the camera as described above. Further, after the film F stored in the storage container shown in FIG. 1 is loaded, the third unit 30 corresponding to the rear side outer frame is attached to the rear surface of the first unit to form an appearance as a camera. The film F is kept in a light-shielded state.

That is, the second unit 20 and the third unit 30 have protrusions 21 on the left and right inner side surfaces, respectively.
And 31 are provided, and the first unit 10
Also, the fitting holes 16 and 17 are provided at the positions corresponding to the respective protrusions.
Are provided, and they are engaged with each other by press fitting and integrated.

At the same time, the wall 22 formed continuously on the peripheral portion of the second unit 20 enters into the groove 32 formed continuously so as to face the peripheral portion of the third unit 30 to form a light shielding wall. Therefore, the film F is kept in a light-shielded state.

The external dimensions of the film-integrated camera having the above-mentioned structure are compact with a width of 120 mm, a height of 55 mm, and a depth of 35 mm.

The third unit 30 has a flat and smooth pressing portion 33 integrally formed on its inner surface. The pressing portion 33 has a function of maintaining the flatness of the film F positioned between the rail surface 15 and the step between the rail surface 14 provided inside the rail surface 15.

When the above-described integrated camera forms are completed, the eyepiece frames 39 provided on the third unit (back side outer frame) 30 and the second unit (front side outer frame) 20, respectively. A simple direct-view finder is configured by the objective frame 29 and the objective frame 29.

That is, a through hole is formed which terminates at the outer surface of the rear outer frame 30 and the outer surface of the front outer frame 20 and serves as a finder.

The through-hole has a substantially rectangular cross section orthogonal to the thickness direction of the camera (from the rear outer frame side to the front outer frame side or vice versa), and expands from the rear side outer frame toward the front side outer frame. It opens and ends in a large opening as shown in FIG.

In this embodiment, the right side portion (see FIG. 3 (a)) of the front side outer frame has a rounded surface (curved surface) to form an opening (through hole) close to the side portion. One side is configured to terminate at the curved portion.

In other words, the other three sides have a length from the outer surface of the rear side outer frame to the flat outer surface of the front side outer frame, while the one side is on the front side outer frame. And it is shorter than the other three sides.

This is useful for minimizing the lateral length of the camera.

That is, if it is attempted to obtain a field of view in the same range as shown without giving the above-mentioned portion a curved surface, the outer surface of the front outer frame must be extended to the right of that in FIG. 3 (a). It is understood from that.

In the embodiment, when the finished camera is viewed from the front, one side close to the side is a short side in the thickness direction of the camera, but the present invention is not limited to this.

As described above, one side close to the outer shape (ridgeline) of the assembled camera is terminated at a position shorter than the other three sides in the thickness direction of the camera, and the structure is opened to the outside air. Even if a large opening corresponding to the shooting range is formed, the size of the camera can be kept as small as possible.

Next, the operation of the camera will be briefly described.

In the film-integrated camera constructed as described above, the user first winds up two screens and performs an idle copy operation, whereby the unexposed portion of the film F is pulled out to the position of the screen frame 13. Then, the shooting ready state is adjusted.

This is indicated by the index board 71.

Next, after the operator looks through the viewfinder composed of the eyepiece frame and the objective frame to determine the composition of the photographing,
Shooting is performed by pressing the shutter button, and if the winding knob 51 is wound counterclockwise until it stops, the film F
The feeding of one screen, the shutter charge, and the operation of the film counter are performed, and the ready state for shooting the next frame is adjusted.

In this way, the shooting / winding operation is repeated, and with the operation, the numerical value of the display of the counter index of the film is changed by one, and, for example, when 24 pictures are taken,
It is displayed that a predetermined number of screens have been shot.

The above is the action of the user, and if the user or the processing company continues to perform aerial copying several times thereafter, the entire effective screen is accommodated in the patrone 1 and the end portion of the film F is indicated by the alternate long and short dash line in FIG. The position shown is reached and stopped.

In this state, the sprocket gear 54
It is easily confirmed by the release lock associated with the inability to rotate.

[0056]

EFFECT OF THE INVENTION The present invention is one side of a through hole that achieves a finder (synonymous with a part of an outer frame forming one side of the through hole).
When viewed in the thickness direction of the camera, the main point is that it is configured to be opened to the outside air by terminating it in the front (rear side) before reaching the outer surface of the front side outer frame. You can expect a great effect.

First, since the structure is simple and it is not necessary to provide a protrusion for forming a finder on the outer shape of the camera, operability or handling is easier than that of a camera of such a form. An opening that allows the photographer to see a wide range equivalent to a 35mm film full size shooting screen,
Since it is not formed only by the outer surface of the front outer frame,
The outer shape of the camera can be held as small as possible.

Therefore, the photographer can take a photograph while confirming the intended range, which is reassuring and prevents the photographing failure from occurring. At the same time, it is possible to satisfy the demand for miniaturization of consumers for cameras.

Further, although the present invention is currently suitable for the case of using a 35 mm film, it can be used even if a 127 type film or a film of other size is used, if necessary. As a result, it is possible to expect a wide range of design freedom.

[Brief description of drawings]

FIG. 1 is an external view of a film that can be used in the camera of the present invention. FIG. 2 is an exploded perspective view showing an embodiment of a film-integrated camera according to the present invention. FIG. 3 is an external view of an embodiment according to the present invention. 1 …… Patrone 10 …… First unit 11 …… Patrone chamber 12 …… Light-tight container chamber 20 …… Second unit 29 …… Objective frame 30 …… Third unit 33 …… Pressing part 39 …… Eyepiece frame 40 ...... Shooting lens

Claims (1)

[Scope of utility model registration request] 1. A first chamber for winding an unexposed film; a second chamber for winding an exposed film; a screen frame formed between the first chamber and the second chamber; A hoisting mechanism that is located above the screen frame and that winds up the unexposed film stored in the first chamber into the second chamber.
A second unit for covering the front surface of the first unit; and a direct-view finder, which includes a unit, a shooting-lens opening for exposing the shooting lens, and an objective aperture forming a part of the direct-view finder. A third unit that covers the back surface of the first unit and has an eyepiece opening that forms a part of the above, and an unexposed film is loaded in advance; In the film-integrated camera, the objective opening is formed in the second unit so as to be located above the screen frame and beside the hoisting mechanism, and the third unit is provided with the above-mentioned objective opening. One side on the outer surface of the objective opening formed with an eyepiece opening and formed in a substantially rectangular shape with four sides when viewed from the axial direction parallel to the optical axis of the taking lens is A seen from the direction perpendicular, film-integrated camera, characterized in that formed on the third unit side than the side on the outer surface facing the side.