JP2593342Y2 - Film unit with lens - Google Patents

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 lens having a built-in strobe for illumination used for photographing.

[0002]

2. Description of the Related Art Conventionally, even when a user does not carry a camera, the user can easily take a picture simply by purchasing a film unit. Unit) is provided by the present applicant. Since such a film unit is inexpensive and has a good image, various variates such as a type with a strobe and a telephoto type are commercially available. For example, as shown in FIG. 3, a film unit "flash flash" equipped with a strobe device shoots an AA battery 10 having a large shape as an electric component between a patrone room 11 and a film roll room 12 of a body. The lens 13 is laid down in the lower part of the optical path so as to be parallel to the film feeding direction, and the main condenser 14 is arranged to the right of the film roll chamber 12 in the direction perpendicular to the film feeding direction. I have.

[0003]

However, the above-described film unit has a main condenser 14 located on the right side of the film roll chamber 12, so that the film condenser is not so much compared with a lens-equipped film unit without a built-in flash device. However, the length in the horizontal direction is increased, and improvement in compactness has been desired. On the other hand, in a film unit with a strobe provided by Konica Corporation as NICESHOT (trade name), a cylindrical condenser is placed between the dark box part where the taking lens is mounted and the film roll chamber, and compactness is achieved. However, the size of the strobe board becomes complicated because the AA batteries are laid down in the lower part of the shooting optical path and the terminal fittings connecting both poles of the batteries and the circuit of the strobe board are shortened. There is a disadvantage that. Further, when the film unit is reused, it is desirable that a high value-added strobe substrate or the like can be collected as it is, and a battery or the like must have a structure that is difficult to remove.

The present invention has been made to solve such disadvantages of the prior art.
Another object of the present invention is to provide a film unit with a strobe device having a simple shape so that a large number of strobe substrates can be obtained from an original substrate of a fixed size.

[0005]

According to the present invention, in order to achieve the above-mentioned object, when a strobe device is integrated with a film unit, a slight extra space is provided on a photographing mechanism side where a photographing lens and a shutter are arranged. By using the extra space and arranging a battery for a strobe and a main capacitor having a large shape, the film unit can be made compact as a whole. That is, a main condenser is disposed below the lens optical path between the patrone chamber and the film chamber so as to be parallel to the film feeding direction, and the power supply battery is disposed between the film chamber and the lens optical path in the film feeding direction. It was arranged to be perpendicular to the direction.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, which shows a main part of a film unit with a lens using a strobe device according to the present invention, the structure of the film unit with a lens is shown in FIG.
No. 88 or Japanese Utility Model Application No. 2-24160 can be used as it is. The unit main body includes a main body 20, a front cover 21, and the like. The main body section 20 is provided with a film roll chamber 12 and a patrone chamber 11 so as to sandwich an exposure frame formed on the back side thereof. The film drawn from the patrone is preliminarily wound and stored in a roll in the film roll chamber 12, and a hoist knob 22 is provided above the patrone chamber 11, and the hoist knob 22 is rotated in a counterclockwise direction. In this way, the film is transferred to the film roll chamber 12.
From the patrone room 11. A sprocket, a kick lever, and a counter disk, which are partially exposed on the back surface of the main body 20 and engage with the perforation of the film, are provided on the upper left of the optical path of the photographing lens 13 between the film roll chamber 12 and the patrone chamber 11. Shutter drive mechanism 2 including
6 are incorporated. When a shutter button 40, which will be described later, is pressed, the shutter blades operate in conjunction with the movement of the kicking lever, and photographing is performed. When the shutter blade is fully opened, the synchro-contact device 2 disposed in the shutter blade moving path above the optical path of the photographing lens 13.
7 turns ON.

A light emitting section 31 is provided on the right front portion of the main body section 20.
And a substantially rectangular strobe substrate 30 is arranged. A strobe circuit is mounted on the back side of the strobe substrate 30, and a recess for mounting the light emitting unit 31 is provided on the upper side. This strobe circuit is composed of a power supply circuit, booster circuit, trigger circuit, etc.
A terminal fitting connected to both poles of the AA battery 10 is provided in order to arrange the AA battery 10 upright, and a columnar main capacitor 14 is disposed at the lower left of the strobe board 30. Connected to booster circuit. The end of the synchro contact device 27 is connected to the trigger circuit. When such a strobe substrate 30 is incorporated in the main body 20, as shown in FIG. 2, a main condenser 14 is provided in the lower part of the optical path of the photographing lens 13 between the patrone chamber 11 and the film roll chamber 12 to feed the film in the longitudinal direction. The power battery 10 is arranged between the film roll chamber 12 and the optical path (dark box) of the photographing lens 13 so that the longitudinal direction thereof is perpendicular to the film feeding direction. Is done.

Further, in the film unit of the present invention, the main condenser 14 is separated from the film path of the photographic lens 13 (dark box) by slightly separating the photographic lens 13 optical path (dark box) and the film roll chamber 12 from the conventional film unit. ) And the film roll chamber 12 so that the film unit can be made compact as a whole. In order to store the AA battery 10 in the lower part of the optical path (dark box) of the photographing lens 13 as in the related art, an interval must be provided between the film roll chamber 12 and the patrone chamber 11 so that the AA battery 10 can enter. However, if the main condenser 14 shorter than the length of the AA battery 10 in the longitudinal direction is used, the film roll chamber 1
The length between 2 and the patrone chamber 11 can be shortened by that much, and the film unit can be made compact.

A front cover 21 is attached to the front surface of the main body 20 to which the strobe board 30 is attached, with an integral nail (not shown). The front cover 21 has a shutter button 40 provided with an opening 38 for exposing the photographing lens 13,
Further, a finder opening 41 and the like are provided integrally. Note that a cutout portion provided on the front right side of the front cover 21 is a strobe switch 43a. A short-circuit plate 44 is provided on the rear side of the switch 43a. The short-circuit plate 44 turns on the charging start contact 32 by pressing the strobe switch 43a to enable strobe photography.

Next, the lens-fitted film unit having the above-described structure will be briefly described. Strobe switch 43a
When the is pressed, the charging start contact 32 is conducted by the short-circuit plate 44, and the main capacitor 14 is charged by the current supplied from the power supply battery 10. Further, when the shutter button 40 is pressed while pressing the strobe switch 43a, the shutter drive mechanism 26 is released, and the shutter blade is instantaneously opened and closed by the kick lever. When the shutter blade is fully opened, the synchro contact device 27
Is turned on, and at this moment, the trigger circuit in the flash circuit is short-circuited, and the charge stored in the trigger capacitor is discharged. When the trigger circuit is short-circuited in this way, a trigger signal for light emission is given to the discharge tube in the light emitting section 31, the discharge tube is discharged by the electric charge stored in the main capacitor 14, and the auxiliary illumination is given to the subject. When the pressing of the strobe switch 19a is stopped, the charging of the strobe circuit is stopped.

When the photographing operation is performed once, the lock of the winding knob is released, and the film can be wound up. Then, operate the winding knob 22 to remove the film by one.
During the frame feed, the shutter drive mechanism 26 performs a shutter charging operation via a sprocket driven by the film feed. When the film is advanced by one frame, the winding knob 22 is locked and the next photographing is performed. Preparation is completed.

After all frames have been photographed, they are submitted as they are to a development dealer. In the developing station, the patrone is taken out by opening the opening / closing lid 15 provided in the lower part of the patrone chamber 11 of the main body 20, and the conventional developing and printing processes are performed, and the negative and print photographs are returned to the user. The used film unit is not discarded but is collected by the film unit manufacturer. Further, the strobe substrate 30 with the AA battery 10 attached is removed from the inside of the film unit by the manufacturer, and after the inspection, the AA battery 10 is replaced and reused as necessary. No need.

Although the present invention has been described with reference to a film unit in which a pre-rolled film is stored, a film unit in which an exposed film is rewound after photographing or a film unit using two cartridges may be used.

[0014]

As described above, according to the arrangement structure of the film unit with the strobe device of the present invention, a very compact film unit can be provided.
In addition, since a complicated shape is not required for the outline of the strobe substrate, there is an advantage that a large number of strobe substrates can be obtained without waste from a fixed-size original substrate, thereby contributing to low cost.
Further, in this embodiment, since the battery incorporated in the film unit is structured so that it cannot be taken out without removing the integral claws of the front cover, the film unit can be collected with the battery attached. The management of reuse, disposal, and the like is reliably performed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a main part of a film unit with a lens according to the present invention.

FIG. 2 is an explanatory diagram showing an internal configuration of a film unit with a lens.

FIG. 3 is an exploded perspective view showing a main part of a film unit with a lens described in the related art.

[Explanation of symbols]

 Reference Signs List 10 AA battery 11 Patrone room 12 Film roll room 13 Photo lens 14 Main condenser 30 Strobe board

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Junichi Takashiro 1-324 Uetakecho, Omiya City, Saitama Prefecture Fuji Photo Optical Machine Co., Ltd. (56) References JP-A-2-244036 (JP, A) Hei 1-57738 (JP, U) Actually open sho 59-131727 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A lens-equipped film unit comprising: a patrone chamber; a film chamber for accommodating a film drawn from the patrone; and a strobe device for causing a discharge tube to emit light by a voltage stored in a main capacitor from a power supply battery. A cylindrical main condenser is arranged below the lens optical path between the patrone chamber and the film chamber so that the longitudinal direction thereof is parallel to the film feeding direction,
A film unit with a lens, wherein a cylindrical power supply battery is disposed between the film chamber and the lens optical path so that the longitudinal direction thereof is perpendicular to the film feeding direction.