JPH06123940A - Film unit provided with lens having stroboscope built-in - Google Patents

Abstract

PURPOSE:To shorten the lateral width of a unit main body by arranging a space for housing electric parts in the upper part of the unit main body and arranging a printed board in the upper part of the unit main body. CONSTITUTION:In the unit main body 3, an exposure chamber 16 is formed on the central part of the main body part 15 and also a cartridge chamber 17 and a film chamber 18 are separately formed on both sides of the exposure chamber 16. And the printed board 21 where the electric parts 20 such as a transformer 20a, a capacitor 20b, a resistance 20c and a transistor 20d, etc., are mounted is horizontally and firmly fixed on the upper side of the main body part 15, and a strobe discharging tube 23 supported by a reflector 22 is connected with the printed board 21. And a sprocket 32 is installed under the exposure chamber 16 so that it can be freely rotated, the sprocket 32 is rotated while being engaged with the perforations of a film which is wound by a winding knob 10, and a self-cocking mechanism 33 assembled in the lower part of the main body part 15 is driven by the sprocket 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens-fitted film unit having a built-in strobe.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 3-39734, Japanese Patent Publication No. 2-332615, etc., an international standard is preliminarily provided in a main body portion in which a taking lens, a film winding mechanism and a shutter mechanism are incorporated. Standard ISO 1007
-A film unit with a lens (hereinafter referred to as a "film unit") having a structure in which a 135 film with a cartridge defined in 1979 is housed in a light-tight manner, and a front cover and a rear cover are fixed to a main body portion. There is. A cartridge chamber and a film chamber are formed at both ends of the main body, and an exposure chamber is formed between the cartridge chamber and the film chamber.

As a lineup of the film units, there is a film unit with a strobe. In this strobe-equipped film unit, a strobe device is attached to the unit body so that good photographing can be performed even at night or indoors. The strobe device is composed of a light emitting portion and a printed circuit board, the light emitting portion is disposed above the film chamber, and the printed circuit board is disposed between the main body portion and the front cover.

[0004]

However, in the above-mentioned conventional photo film unit with a strobe, since electric components such as a transformer and a capacitor are mounted on the printed circuit board, as shown in FIG. The space 40 is formed between the film chamber 41 and the exposure chamber 42, and as shown in FIG.
It is provided on the right side of the film chamber 41 as shown in FIG. Therefore, the strobe-equipped film unit has a problem that the width of the unit body becomes larger than that of the film unit.

The present invention has been made in view of the above background, and an object of the present invention is to provide a compact strobe-equipped film unit in which the width of the unit main body is shortened.

[0006]

In order to achieve the above object, the strobe-equipped film unit according to claim 1 is provided with a storage space for electric parts in an upper portion of a unit body, and a printed circuit board is disposed above the unit body. It is a thing. In the film unit with a strobe according to a second aspect of the present invention, the printed circuit board is provided horizontally and the electric parts are arranged on the left and right with the finder in between.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 2 showing a lens-fitted photo film unit having a built-in strobe according to the present invention (hereinafter simply referred to as a strobe photo film unit), the strobe photo film unit 2 is a unit main body 3 having a simple photographing mechanism.
And an outer case 4 for storing this,
A photo is taken with the outer case 4 still in place. In addition,
For the outer case 4, a paper box or the like having a printed outer surface is used to make the appearance of the strobe-equipped film unit beautiful.

A photographing lens 5 is arranged at the center of the front surface of the unit body 3. A finder 6 is provided above the taking lens 5, and a strobe light emitting section 7 is arranged on the right side of the finder 6. A strobe charging knob 8 is provided below the strobe light emitting section 7. A release button 9 is provided on the upper surface of the unit body 3, and a winding knob 10 is provided on the lower portion of the side surface. Further, on the lower surface of the unit main body 3, as shown in FIG.

The unit main body 3 is composed of a main body, a front cover and a rear cover which are fixed to the front and rear of the main body. In FIG. 1 showing the unit main body 3 with the rear cover removed, an exposure chamber 16 is provided at the center of the main body 15 and the exposure chamber 1
A cartridge chamber 17 and a film chamber 18 are formed on both sides of 6, respectively. A printed circuit board 21 on which electrical components 20 such as a transformer 20a, a capacitor 20b, a resistor 20c, and a transistor 20d are mounted is horizontally fixed to the upper side of the main body portion 15.
In addition, the strobe discharge tube 2 supported by the reflector 22
3 is connected. By the way, the arrangement of the electric components 20 includes a transformer 20a, a resistor 20c, and a transistor 20d.
Are arranged on the right side of the finder 6 and the condenser 20b is arranged on the left side as shown in the figure, these can be efficiently housed in the unit main body 3.

The winding knob 10 is arranged below the cartridge chamber 17. The winding knob 10 is integrally provided with a shaft 31 that is inserted into the cartridge chamber 17 and has a fork 30 that engages with the spool of the cartridge formed at the end thereof. A sprocket 32 is rotatably provided on the lower side of the exposure chamber 16.
2 is rotated by being engaged with the perforation of the film wound by the winding knob 10 and drives the self-cocking mechanism 33 incorporated in the lower portion of the main body portion 15.
Reference numeral 34 indicates a power supply battery that causes the strobe discharge tube 26 to emit light.

The operation of the strobe-equipped film unit 2 constructed as above will be described. In the strobe-equipped film unit 2, the winding knob 10 and the self-cocking mechanism 33 are moved to the lower side of the main body 15 to accommodate the printed circuit board 21 and the electric components 20 mounted thereon in the empty space. Since the storage space arranged in the lateral direction of the unit body 3 can be omitted, the lateral width of the unit body 3 can be shortened.

Furthermore, in the strobe-equipped film unit 2, the printed circuit board 21 and the electric components 20 mounted on the printed circuit board 21 are arranged on the upper portion of the main body portion 15.
When the strobe-equipped film unit 2 is placed on a desk or the like, the electric component 20 and the printed circuit board 21 are not subjected to a strong impact during placement. Therefore, the electric component 2
The soldered portion between 0 and the printed circuit board 21 is not peeled off, and the strobe discharge tube 23 can be made to reliably emit light.

In the strobe-equipped film unit 2, the release button 9 is provided on the upper surface of the unit body 3, but the release button 9 is operated by the rod shown in broken line in FIG. Since it is surely transmitted to the shutter device (not shown) provided adjacently, even if the winding knob 10 and the Seff cocking mechanism 33 are arranged on the lower side of the unit main body 3, there is no problem in photographing. .

Recently, a new format, for example, a photographic film in which a perforation is formed on one side has become a hot topic in newspapers and the like, but in general, many cameras use a sequential winding method in which the photographic film is pulled out from the main body of the photographer at each photographing. Since the sprocket that is adopted and the sprocket that engages with the perforation is arranged on the upper side of the exposure frame, in the photographic film cartridge containing the photographic film of the new format, the perforation is formed on the left side in the feeding direction. There is a strong possibility.
When such a photographic film cartridge is manufactured, in the conventional lens-equipped film unit, the photographic film is wound around the main body of the photographic film for each shooting, and since the sprocket is arranged above the exposure frame, the photographic film cartridge is Although it cannot be loaded, since the sprocket is arranged under the exposure frame in the lens-fitted photo film unit of the present invention, a photo film cartridge containing a photo film of a new format can be loaded without changing the internal structure. be able to.

[0015]

As described above, according to the film unit with a strobe of the present invention, the storage space for the electric parts is provided in the upper portion of the unit body, and the printed circuit board is arranged above the unit body. Since the storage space arranged laterally, for example, beside the film chamber, can be omitted, the lateral width of the unit main body can be shortened. Further, since the printed circuit board and the electric components mounted on the printed circuit board are arranged on the upper portion of the main body portion, when the unit main body is mounted on a desk or the like, strong impact at the time of mounting is not applied to them. For this reason, in the lens-fitted film unit of the present invention, the soldered portion between the electric component and the printed circuit board is not peeled off, so that it is possible to prevent the strobe from not emitting light due to disconnection. Furthermore, by disposing the printed circuit board horizontally and arranging the electric components on the left and right with the finder in between, the printed circuit board and the electric components can be efficiently housed in the unit body.

[Brief description of drawings]

FIG. 1 is a front view of a unit main body with a rear cover removed, as viewed from the rear.

FIG. 2 is a perspective view of the strobe-equipped film unit according to the present invention as viewed obliquely from above.

FIG. 3 is a perspective view of a film unit with a strobe according to the present invention as viewed obliquely from below.

FIG. 4 is an explanatory view showing a position of a space for accommodating electric parts of a conventional lens-fitted film unit.

FIG. 5 is an explanatory view showing another position of a space for accommodating electric parts of a conventional lens-fitted film unit.

[Explanation of symbols]

 2 Film unit with strobe 3 Unit body 5 Photographing lens 7 Light emitting part 20 Electric parts 20a Transformer 20b Capacitor 21 Printed circuit board 22 Strobe discharge tube 23 Reflector

Claims (2)

[Claims] 1. A lens-equipped film having a printed circuit board on which electric parts such as a transformer and a capacitor are mounted, and a strobe device composed of a light emitting portion including a stroboscopic discharge tube and a reflector, which is incorporated in a unit body having a simple photographing mechanism. In the unit, a film unit with a lens having a built-in strobe, characterized in that a storage space for an electric component is provided above the unit body, and a printed circuit board is arranged above the unit body. 2. The strobe lens according to claim 1, wherein the electric parts are arranged on the left and right sides of a finder provided above the unit body and are connected to a printed circuit board arranged in a horizontal direction. Film unit with.