JPH10312040A - Film unit with lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent reduction in a holding property in photographing and to simplify operation for strobe photographing. SOLUTION: This film unit with a lens is constituted of a unit main body 11 incorporating a photographic film cartridge, a photographing mechanism and a stroboscope unit and an outside case 12. This outside case 12 moves between a nonuse position for covering the range from a grip part to a photographic lens 13, of the unit main body 11 and a photographing position for exposing the lens 13. In the unit main body 11, a link lever 61 for turning on a stroboscope charging switch for the stroboscope unit, linking with the movement to the photographing position of the outside case 12 is provided. Since the outside case 12 is moved to the nonuse position, the link lever 61 automatically turns off the stroboscope charging switch interlocking with the movement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film unit with a built-in photographic film cartridge, a simple photographic mechanism including a photographic lens and a shutter mechanism, and a strobe unit.

[0002]

2. Description of the Related Art A simple exposure mechanism is provided so that anyone can easily enjoy taking a picture, and an unexposed photographic film and a cartridge are loaded in advance at the time of manufacture, so that cumbersome film loading and rewinding operations are not required. A film unit with a lens (hereinafter, referred to as a “film unit”) is well known.

[0003] As a film unit, for example, "Sharp Run Super 800" (trade name) and the like are manufactured and sold by the present applicant. This film unit has a shape in which a front surface of the cartridge storage chamber is used as a grip portion and a portion around the taking lens other than the grip portion is recessed to reduce the thickness. Recently, a film unit with a lens loaded with an IX240 film cartridge smaller than a 135-type photographic film cartridge has also been manufactured and sold by the applicant as "Sharp Run Super Slim" (trade name). . In this film unit, the thickness and the profile are reduced by the size of the built-in small cartridge.

[0004] Although a small film unit is excellent in portability, it is difficult to hold the film unit for actual photographing, and a finger may be caught on a photographing lens and photographing may fail. In order to solve this, there has been a conventional invention in which a projection is provided around the photographing lens to warn the photographer of finger-holding. However, the provision of the projection around the photographing lens is due to the design of a film unit or the like. It was unfavorable and not very effective.

In Japanese Utility Model Laid-Open No. 60-60733, a protective cover slidable between a closed position for covering a taking lens and an open position exposing the same is provided on the grip side of the camera body. A camera has been proposed which is used as a grip for holding a camera body when slid. The protective cover described in this publication has an opening on the front surface, and when moved to the open position, the opening is located in front of the strobe light-emitting portion to expose the same, and a power supply for the strobe is provided. The switch is turned on to simplify operations during flash photography.

[0006]

However, the film unit is provided with a lid for taking out the cartridge in which the photographed film has been taken. This lid is located at the bottom of the cartridge storage chamber arranged inside the grip portion. Therefore, since the protective case described in the above-mentioned publication is provided on the grip portion side, if this protective case is adopted in the film unit, there is a disadvantage that the lid for taking out the cartridge cannot be opened.

In addition, when the above-mentioned protective case is used, the power switch of the strobe is always turned on, so that there is a drawback that it is impossible to cope with the case of photographing in which strobe light is not desired.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and can be easily held at the time of photographing without impairing portability. Further, a lid for taking out a cartridge can be easily opened. It is an object of the present invention to provide a film unit with a lens capable of performing the following.

[0009]

According to a first aspect of the present invention, there is provided a unit body having a built-in unexposed photographic film and having a taking lens exposed to the outside. , On the outer surface of this unit body,
A lens-equipped film unit having an outer case movably covered between an unused position covering a range including the photographing lens from a side surface on the grip side and a photographing position protruding toward the grip and exposing the photographing lens. An electronic flash unit built in the unit main body, the electronic flash unit including a charge start switch for starting charging of a main capacitor using a power supply of a power supply battery and an emission inhibition switch for inhibiting electronic flash emission; A light emission prohibition operation member provided on the front surface of the unit body so as to be operable externally, and for turning on the light emission prohibition switch in conjunction with the external operation; An interlocking means for turning on the charging start switch in conjunction with the movement to the non-use position while being turned on.

In the invention according to claim 2, the outer case is made detachable from the unit body. Further, in the invention according to the third aspect, a cut line is provided in the outer case for facilitating removal of a part of the outer case facing the lid when the non-use position is established.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 2, a film unit 10 comprises a unit main body 11 in which a photographic film cartridge and various photographing mechanisms are incorporated, and an outer case 12. The unit body 11 includes a photographing lens 1
3, a winding knob 14, a viewfinder optical system 15, a strobe light emission window 16, a light emission inhibition operation member 17, a number-of-photographs display window 18, a shutter button 19, and the like are exposed. On the left side of the front surface of the unit body 11, a grip portion 20 bulging in the front direction is formed. On the bottom surface of the grip portion 20, a bottom cover 21 that is opened when the cartridge containing the photographed photo film is taken out is disposed.

The outer case 12 is formed of a material such as paper, plastic, or a film sheet into a case shape having an opening 23 on one side, and has an unused position covering an outer periphery from the grip portion 20 to the photographing lens 13. , Can be slidably moved between a photographing position where the photographing lens 13 is exposed. This sliding movement is performed by the long hole 2 provided in the outer case 12.
The amount of movement is restricted by the engagement of the projections 25 provided on the unit body 11 with the projections 4 so that the unit 4 does not easily come off. In addition, on the surface of the outer case 12, a beautiful color pattern for explanation of use of the film unit 10 and a decorative effect,
Precautions at the time of shooting and requesting development are printed.

The front edge 23a of the opening 23 of the outer case 12
As shown in FIG. 3 and FIG. 4, the outline covers the finder objective lens 15a at the non-use position and exposes it at the photographing position. The upper edge 23b of the opening 23 has a contour that exposes the number-of-photographs display window 18 at the time of the photographing position. Further, on the upper surface of the outer case 12, an opening 24a is formed at the right end of the elongated hole 24 so as to be connected to the elongated hole 24. This opening 24a
Is for exposing the number-of-photographs display window 18 even in the non-use position. Furthermore, the elongated hole 24 of the outer case 12 is formed wider in the width direction (thickness direction) than the convex portion 25 so that the shutter button 19 is exposed at the shooting position. The shutter button 19 is hidden by the left portion of the elongated hole 24 when it is not in the unused position.

The rear edge of the opening 23 of the outer case 12 is shown in FIG.
As shown in FIG. 6, the finder eyepiece window 26 and the charging completion display window 27 are covered at the non-use position, and are exposed at the photographing position. In addition, an opening 28 for exposing the hoisting knob 14 at the time of the photographing position is provided on the back surface. Hoisting knob 14
Is hidden by the right side of the opening 28 when it is not in use.

A perforation 29 is provided on the bottom surface of the outer case 12 along a range overlapping the contour of the bottom cover 21 when not in use. The perforation 29 is the bottom cover 2
1 is also provided along a range corresponding to the insertion slot 29a serving as a guide for driver insertion, and forms a narrow rectangular range 29a. By using the range 29a as a guide, the tip of the driver can be reliably and safely guided to the insertion opening 21a. When the outer case 12 is formed of a plastic material, it is desirable to form a thin portion instead of the perforation 29.

As shown in FIG. 7, the outer cover of the unit body 11 includes a front cover 30 and a rear cover 31. These covers 30 and 31
2. A strobe unit 33, a photographic film cartridge 34, and a main body base 35 are built in a sandwich structure. These components 30 to 35 are detachably attached to each other by nail coupling.

The exposure unit 32 is a unit component in which the photographing lens 13, a shutter mechanism, a film unwinding mechanism, a film counter mechanism, a finder optical system 15, and the like are integrally incorporated. On the front of the front cover 30,
An exposure hole 3 for exposing the photographing lens 13 and the finder objective lens 15a of the finder optical system 15 and the like.
7, 38 are provided. In addition, a light emission prohibition operation member 17 for operating when strobe light emission of the strobe unit 33 is prohibited is integrally provided at the upper right portion of the front surface of the front cover 30.

A shutter button 19 for operating a shutter mechanism is integrally provided on the upper surface of the front cover 30. An opening for exposing the number-of-photographs display window 18 constituting the film counter mechanism is formed by an opening 39 formed on the upper surface of the front cover 30 and an opening 40 of the rear cover 31.

As the photographic film cartridge 34 housed in the unit body 11, for example, a photographic film cartridge corresponding to the IX240 film cartridge is used. Note that 135
A type of photographic film cartridge may be used. The photo film cartridge 34 includes a photo film 41,
A spool 42 around which the photographic film 41 is wound, and a cartridge 4 for rotatably storing the spool 42
3

An aperture 44, which is an exposure light path, is formed in the center of the main body base 35, and a cartridge chamber 45 and a film roll chamber 46 are formed on both sides thereof. The cartridge chamber 45 and the film roll chamber 46
After the rear cover 31 is attached to the rear surface, a cartridge 43 and a film roll 41a obtained by rolling the photographic film 41 drawn out from the cartridge 43 into a roll are stored therein. These chambers 45, 46
The bottom is open, and the light is made light-tight by closing the bottom covers 21 and 47 of the rear cover. Further, a winding knob 14 is provided at an upper portion of the cartridge chamber 45. The winding knob 14 is connected to the spool 4 inside the cartridge chamber 45.
2 is rotated in the film winding direction (the direction of the arrow shown in FIG. 3), and the photographed photo film 41 is taken.
Is wound up into the cartridge 43 to form a film winding mechanism.

The rear cover 31 includes a viewfinder eyepiece window 2.
6 and a charge completion display window 27 (see FIG. 6) for visually confirming the charge completion lamp of the strobe unit 33 to the outside. A peripheral edge of the hoisting knob 14 is exposed at the upper end of the rear cover 31 so as to be rotatable.
Further, below the rear cover 31, the above-described cartridge chamber bottom lid 21 and film roll chamber bottom lid 47 are integrally provided in a pull-top manner. The cartridge chamber bottom lid 21 is formed with an insertion port 21a for inserting a jig used for opening, for example, a driver or the like.

The strobe unit 16 includes a main capacitor 5 mounted on a circuit board 50 including a power supply circuit, a trigger circuit, and the like.
1, a unit component in which a power supply battery 52, a synchro switch 53, a strobe light emitting section 16 and the like are integrally mounted. The strobe unit 16 is attached to the film roll chamber 46 of the main body base 35 by positioning means, and is held by pawls.

On the front surface of the front cover 13, there is provided a light emission prohibiting operation member 17 which is partially cut out and formed elastically. As shown in FIG. 8, behind the operation member 17, a pair of contacts 56 and 57 for preventing strobe light emission, which are formed on the circuit board 50, are located. These contacts 56 and 57 have a conductive plate 5 made of a conductive material.
8 is attached from the back side. The conductive plate 58 constitutes a light emission inhibition switch together with the pair of contacts 56 and 57, and the other end 58b is soldered to the other contact 56 with one end 58a being in contact with the one contact 57. .

Between the two ends 58a and 58b of the conductive plate 58,
A bent portion 58c that is bent forward in a U-shape is formed, and the bent portion 58c
6 and 57 enter the opening 50a provided by cutting out. The light emission prohibition operation section 17 has a projection 17a on the back side.
Are formed integrally, and when pressed, the protrusion 1
7a presses the bent portion 58c, and one end 5 of the conductive plate 58 is pressed.
8a away from the contact 57, a pair of contacts 56, 57
Cut off conduction.

Below the light emission inhibiting contacts 56 and 57,
As shown in FIG. 9, a pair of contacts 59 for charging the strobe light,
60 is provided on the surface of the circuit board 50. On these contacts 59 and 60, a sliding piece 61a made of a conductive material and provided at one end of a link lever 61 is provided with a closed position for conducting the pair of contacts 59 and 60 and a pair of contacts 5
It slides between the open position to cut off the conduction of 9,60. The pair of contacts 59 and 60 and the sliding piece 61a constitute a strobe charging switch.

The linking lever 61 has a portion other than the sliding piece 61a made of an insulating material. As shown in FIG. 1, a shaft 3 parallel to the optical axis 13a is provided on the back side of the front cover 30.
It is attached rotatably about Oa, and is urged by a spring 62 in a direction to slide the sliding piece 61a to the open position.

On the other end 61b opposite to the sliding piece 61a across the shaft 30a, a projection 12a projecting from the inner wall of the outer case 12 is engaged via a slot 30b provided in the front cover 30. I agree. As shown in FIG. 10, the other end 61 b of the link lever 61 is engaged with the projection 12 a when the outer cover 12 is in the photographing position, and holds the sliding piece 61 a in the closed position. The projection 12a is compared with the movement of the cover 12 to the unused position, and the slope 12d is configured to rotate the sliding piece 61a toward the open position.

A strobe charging switch composed of a pair of contacts 59 and 60 and a sliding piece 61a is indicated by reference numeral 65 in FIG. When the switch 65 is turned on, the oscillation transistor 66 is oscillated by the step-up transformer 67, so that the primary current flowing through the first primary coil 67a is increased and the secondary current flows through the secondary coil 67b. The secondary current is rectified and charged in the main capacitor 51.

When the main capacitor 51 is charged, the trigger capacitor 68 is also charged. A trigger transformer 69 is connected to the trigger capacitor 68.
The primary coil 69a has one side of the synchro switch 53, and the secondary coil 69b has a strobe light emitting portion 16a.
Are connected to trigger electrodes 71 for starting discharge of a discharge tube 70 provided in the inside.

When the shutter is released, the exposure unit 3
The shutter blade provided in the second shutter mechanism swings once. When the shutter blades are fully opened during this time, the synchro switch 53 is turned on. At this moment, the trigger circuit is short-circuited, and the electric charge stored in the trigger capacitor 68 is discharged through the primary winding 69a. When the trigger circuit is short-circuited in this manner, the secondary winding 69b and the trigger electrode 71
And a trigger signal for light emission is given to the discharge tube 70 via
The discharge tube 70 is discharged by the electric charge stored in the main condenser 51, and gives an auxiliary illumination to the subject.

A light emission inhibiting switch including a pair of contacts 56 and 57 and a conductive plate 58 is indicated by reference numeral 72 in FIG. As described above, the light emission prohibition switch 72 has a contact b. When the switch 72 is turned off, the charging of the trigger capacitor 68 is cut off. Therefore, even if the synchro switch 53 is turned on, a trigger signal cannot be obtained. Therefore, strobe light emission is prohibited.

The operation of such a configuration will be described.
In the manufacturing process of the film unit 10 of the present invention, the front cover 30 and the rear cover 31 are respectively put on the front and back of the main body base 35 to which the exposure unit 32 and the strobe unit 33 are attached, and the photographic film cartridge 34 is loaded. Then, the unit body 11 is assembled.

Next, the outer case 12 is inserted from the end of the grip portion 20, and the convex portion 25 is engaged with the elongated hole 24. This engagement can be performed smoothly by pressing the front and back surfaces of the outer case 12 to expand the upper surface. Then, outer case 1
2 is pulled to a position where the front edge 23a of the opening 23 covers the photographing lens 13 to completely cover the range from the grip portion 20 to the photographing lens 13 as shown in FIG. As a result, the taking lens 13, the finder objective window 38, the shutter button 19, the finder opening 38, and the charging completion display window 27 are completely covered by the outer case 12, and dust, sand, or foreign matter is removed from these gaps during transportation or the like. Can be prevented from invading the inside of the unit body 11 and causing a failure of the film unit 10 or affecting the photographic properties.

When the outer case 12 is in the non-use position, the protrusion 12a is retracted from the engaging portion 61c shown in FIG. Accordingly, the link lever 61 rotates clockwise about the shaft 30a by the bias of the spring 62. This rotation is performed until the protrusion 12a comes into contact with the slope 61d, and the slide piece 61a is moved to the open position by the contact. Thereby, the pair of contacts 59 of the circuit board 50
As a result, the strobe charging switch 65 is turned off.

At this time, the light emission inhibiting operation member 17
Is not pressed, so that one end 58 of the conductive plate 58
a is in contact with the contact 57. Thus, the light emission inhibition switch 72 is in the ON state.

When photographing, as shown in FIG. 4, the outer case 12 is slid to the photographing position, and the protruding portion of the outer case 12 is used as a grip. As a result, the holding property is improved, and the gripped finger is separated from the photographing lens 13, so that a failure photograph such as a finger image can be reliably prevented.

When the outer case 12 is moved to the photographing position, the photographing lens 13, the finder objective window 38, the shutter button 19, the winding knob 14, the finder opening 38, and the charging completion display window 27 are completely exposed from the outer case 12. You.

The projection 12a moves along the slot 30b as the outer case 12 moves. During this time, the tip of the projection 12a presses the slope 61d of the link lever 61, and rotates the link lever 61 counterclockwise against the bias of the spring 62. This rotation is performed until the projection 12a engages with the engagement portion 61c.

Here, the front edge 23a of the outer case 12 completely exposes the photographing lens 13 not before the outer case 12 is moved to the photographing position, but before.
Therefore, the sliding piece 61a is connected to the pair of contacts 5 at the timing when the front edge 23a exposes the photographing lens 13.
The shape of the slope portion 61d is determined so as to come into contact with 9, 60. Accordingly, when the outer case 12 is moved toward the photographing position, the protrusion 12a presses the slope 61d, gradually rotates the link lever 61, and the front edge 23a completely exposes the photographing lens 13. The sliding piece 61a
Makes the pair of contacts 59 and 60 conductive, and the strobe charging switch 65 is turned on. Thereafter, when the outer case 12 moves to the photographing position, the protrusions 12 a
c, and the sliding piece 61a is held in the open position.

The photographing operation is performed by rotating the wind-up knob 14 until the film is stopped, and then performing framing and pressing the shutter button 19 as in the prior art.

When taking a picture with strobe light emission inhibited, the shutter button 19 is pressed down while the light emission inhibition operation member 17 is kept pressed. When the light emission prohibiting operation member 17 is pressed down, the projection 17 a pushes the bent portion 58 c of the conductive plate 58, and the one end 58 a of the conductive plate 58 is elastically deformed so as to be separated from the contact 57. As a result, the light emission inhibition switch 72 is turned off.

When not in use, the outer case 12 is slid to the unused position. Thereby, the engagement between the projection 12a and the engagement portion 61c is released, and the projection 12a moves along the slope 61d. The link lever 61 includes a spring 62
, The sliding piece 61a cuts off the conduction of the pair of contacts 59 and 60, and the flash charging switch 6
5 is turned OFF.

When the film unit 10 is not used, the horizontal length of the film unit 10 becomes shorter than that of the photographing position, so that portability is improved. In addition, the outer case 12
Regardless of the slide position, only the number-of-shots display window 18 is always exposed, so that the number of shots can be checked quickly.

The film unit 10 after completing the photographing for all the photographing frames is submitted to the developing laboratory. At the developer, it is confirmed that the outer case 12 has been moved to the unused position. As a result, the cartridge chamber bottom cover 21 of the unit main body 11 overlaps with the area of the perforation 29 of the outer case 12. In this state, the driver is inserted toward the mark area 29 a of the perforation 29. As a result, the area 29a of the perforation 29 is broken and the insertion opening 2
1a. By prying the screwdriver as it is, the bottom cover 21 can be opened as before. At this time, the area corresponding to the bottom cover 21 of the outer case 12 is also broken along the perforations 29, so that it is not necessary to remove the outer case 12 one by one. Thereafter, the cartridge 43 taken out from the cartridge chamber 45 is taken out, and the taken out cartridge 43 is taken out.
Is set in a developing machine, development and printing can be performed in the same manner as in the prior art.

In the above embodiment, the outer case 12 is partially broken to open the bottom cover 21 of the unit body 11. However, the engagement between the elongated hole 24 and the convex portion 25 is released to allow the outer case 1 to be opened.
2, the bottom cover 21 may be opened. In this case, the perforations 29 of the outer case 12 can be omitted.

In the above embodiment, the linking means is constituted by the linking lever 61 and the protruding portion 12a. However, the present invention is not limited to such a mechanism, but may be any known mechanism. Can be adopted.

In the above embodiment, the convex portion 25 and the elongated hole 24 for restricting the sliding movement of the outer case 12 are arranged on the upper surface side of the film unit 10. It may be arranged at any position. The number of these components is not limited to one pair, and a plurality of them may be provided. Further, what is provided on the outer case 12 is not limited to the concave portion which is the elongated hole 24, but may be a convex portion 25 opposed thereto.

A label may be affixed to the unit main body 11 of the above-described embodiment in a laver winding shape around the entire periphery of the photographing lens 13. In this case, since the outer case 12 is attached to this form, dust resistance is further improved. Further, in the above embodiment, the perforation 29 and the thin portion are provided in the outer case 12, but the present invention is not limited to this, and instead, the part facing the bottom cover 21 is broken and removed. Any material can be used as long as it plays a role of a score line for facilitation. Further, although the position for taking out the cartridge 43 is the bottom surface, the present invention is not limited to this, and the lid is arranged according to this position.
The present invention is not limited to the bottom lid.

[0049]

As described above, according to the film unit with the lens of the present invention, the flash charging is automatically started in conjunction with the movement of the outer case to the photographing position, and the light emission for inhibiting the flash light emission is provided. Since the prohibition operation member is provided, it is possible to easily select the flash emission at the time of photographing.
Further, in the invention described in claim 2, the outer case is detachably attached, and in the invention described in claim 3, a cut line is provided for breaking a part facing the lid to facilitate removal. The cartridge can be removed as before.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of a linking means for starting strobe charging in association with movement of an outer case.

FIG. 2 is a perspective view showing a film unit with a lens including an outer case and a unit main body.

FIG. 3 is a front side perspective view showing a non-use state of the film unit with a lens.

FIG. 4 is a front perspective view showing a photographing state of the film unit with a lens.

FIG. 5 is a rear perspective view showing a non-use state of the film unit with a lens, with the rear side facing upward.

FIG. 6 is a rear perspective view showing the photographing state of the film unit with a lens, with the rear side facing upward.

FIG. 7 is an exploded perspective view of a unit main body.

FIG. 8 is a perspective view showing a main part of a strobe light emission prohibition switch.

FIG. 9 is a perspective view showing a main part of a strobe charging start switch.

FIG. 10 is a perspective view showing a main part of a link lever and a protrusion of an outer case.

FIG. 11 is an electric circuit diagram showing a circuit of a strobe unit.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 Film unit with lens 11 Unit body 12 Outer case 12 a Projection 13 Photographic lens 17 Flash off switch 30 b Slot 60 Linkage lever 56, 57 Contact for strobe light emission 58 Conductive plate 59, 60 Contact for flash charge

Claims (3)

[Claims] 1. A unit main body in which an unexposed photographic film is incorporated in advance and a photographing lens is exposed to the outside, and a unit including an outer surface of the unit main body and a side including a photographing lens from a grip side surface. A lens-equipped film unit having an outer case movably covered between a non-use position that covers the camera and a shooting position that projects to the grip side and exposes the shooting lens, wherein the film unit is built in the unit main body and includes a power supply. A strobe unit including a charge start switch for opening / closing charging of the main capacitor using a battery power supply and a flash prohibition switch for prohibiting strobe light emission; and A light emission prohibiting operation member for turning on the light emission prohibition switch in conjunction with the charging; A film unit with a lens, further comprising interlocking means for turning on a start switch and turning off the charge start switch in association with movement to a non-use position. 2. The film unit with a lens according to claim 1, wherein the outer case is detachable from a unit main body. 3. A cutout line is formed in the outer case to break a part of the outer case facing the lid when the cartridge containing the photographed photo film is taken out when the cartridge is not in use, so that the cartridge can be easily removed. The film unit with a lens according to claim 1, wherein the film unit is provided.