JP2000241858A - Electric parts for stroboscopic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide electric parts for stroboscopic device capable of drastically miniaturizing a stroboscopic device by reducing the space occupied by a dry battery and a capacitor. SOLUTION: A main capacitor 41 constituting electric parts 43 has a cylindrical outward form with a through-hole 51 formed in the center extending in the longitudinal direction. The inside diameter of the through-hole 51 is formed slightly larger than the outside diameter of a dry battery 42. The dry battery 42 is inserted into the through-hole 51 to form the electric parts 43.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric component comprising a capacitor and a dry battery constituting a strobe device.

[0002]

2. Description of the Related Art A film unit with a lens, which is a kind of camera and has a simple photographing mechanism, is pre-loaded with unexposed film and can be easily photographed by just purchasing it. It is widely used in general. Also, a film unit with a built-in strobe that has a built-in strobe and enables shooting at night or under backlight is available.

The strobe device of such a film unit with a lens is composed of a condenser, a dry cell, a strobe discharge tube, a step-up transformer, and the like. Of these, the condenser and the dry cell are the largest components of the strobe device. Parts. Such a capacitor and a dry cell are horizontally arranged at a distance from each other on the rear side of the strobe discharge tube and below the aperture.

[0004]

In recent years, a film unit with a lens has been made much smaller than a product at the time of its release by reducing the size of each component and placing them densely. However, since the condenser and the dry battery that constitute the strobe device are cylindrical to each other, if they are arranged independently in a substantially box-shaped film unit with a lens,
Substantially triangular dead spaces were likely to occur at the four corners, which hindered further downsizing of the film unit with lens.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and has as its object to provide an electric component for a strobe device capable of significantly reducing the size of a strobe device by reducing the space occupied by a dry cell and a capacitor. And

[0006]

In order to achieve the above object, according to the present invention, there is provided an electric component for a strobe device comprising a cylindrical capacitor and a dry battery, the strobe device comprising: Forming a through hole extending in the length direction of an inner diameter having a width equal to or greater than the diameter of the dry battery,
The dry battery is inserted into this through hole.

The electric polarity of the inner wall of the through hole of the capacitor may be the same as the electric polarity of the outer wall of the dry battery inserted into the through hole.

[0008]

FIG. 2 is a perspective view showing the appearance of a film unit with a lens having a built-in strobe device using the electric component of the present invention, and FIG. 3 is an exploded perspective view thereof. The lens-fitted film unit 2 includes a unit main body 3 in which various photographing mechanisms are incorporated and in which a film cartridge is previously loaded, and an outer case 4 partially covering the unit main body 3. A shutter button 5 and a counter window 6 for displaying the remaining number of recordable images are provided on the upper surface of the unit body 3, and a finder window 7 is provided on the front surface.
A shooting window 8, a strobe light emission window 9, a strobe charging operation button 10, and the like are provided. On the back surface, a hoisting knob 11 that is rotated for each photographing is exposed.

As shown in FIG. 3, the unit main body 3 includes a main body base 12, a rear cover 13, an exposure unit 14, a front cover 15, and a strobe device 16. The front cover 15 is detachably attached to the front surface of the main body base 12. The shutter button 5 is formed so that a part of the upper surface of the front cover 15 is cut out to be elastic.

The main body 12 has a cartridge chamber 19 for accommodating a cartridge 18 and a film roll chamber 21 for accommodating an unexposed photographic film 20 drawn out of the cartridge 18 in the form of a film roll 20a wound into a roll. Are integrally formed. The film roll chamber 21 is lower in height than the cartridge chamber 19. The rear and bottom surfaces of the cartridge chamber 19 and the film roll chamber 21 are open, and the rear surface is attached by mounting the cartridge 18 and the film roll 20a and then attaching the rear cover 13 to cover the rear surface. The bottom surface is covered by the pull-top type bottom covers 22 and 23 that have been set.

The cartridge chamber 19 and the film roll chamber 2
1, a dark box 25 is provided. An exposure opening 26 is formed on the back surface of the dark box 25.
The exposure unit 14 is attached to the front of the device.

The spool 2 is provided inside the cartridge 18.
6 is rotatably housed. One end of the photo film 20 is locked on a spool 26. Photo film 20
Is pulled out of the film roll chamber 21 by a film winding operation performed by the winding knob 11 from the outside,
It is housed in the cartridge body 18 inside the cartridge chamber 19 through the exposure opening 26.

The exposure unit 14 has a photographic lens 27 exposed from the photographic window 8.
A finder optical system 28, a shutter mechanism, a shutter charging mechanism, a film unwinding mechanism, and the like that are exposed from the finder window 7 are integrally incorporated in a dark box member for guiding the subject light transmitted through the finder opening 26 to the exposure opening 26 in a dark room state. These are unitized parts.

[0014] The film winding stopping mechanism is a photographic film 2.
The sprocket engages with the perforation of No. 0, and when the rotation of the sprocket corresponding to the transfer of one frame of the photographic film 20 is detected, the rotation of the sprocket is locked.
The rotation operation of is also locked. The shutter charging mechanism charges the shutter mechanism using the film transfer during this time. The shutter mechanism operates in response to the pressing operation of the shutter button 5, and releases the locked state of the film winding prevention mechanism after the release is completed.

FIG. 4 is an exploded perspective view showing a strobe device using the electric component of the present invention. Strobe device 16
Is composed of a circuit board 45 on which circuit components such as an electric component 43 composed of a main capacitor 41 and a dry battery 42, a synchro switch 44, a step-up coil, etc. are mounted, and a strobe light emitting section 46 including a strobe discharge tube and a reflector. I have. Only the strobe light emitting portion 46 that emits strobe light is exposed from the strobe light emission window 9 formed in the front cover 15.

A projection 10a for pressing a switch contact 47 is provided on the back surface of the flash charging operation button 10 provided at the lower right of the front cover 15 as viewed from the front and front. When the flash charging operation button 10 is pressed, a switch contact piece 47 having one end held at the right end of the main body base 12 is provided.
Is pressed by the protruding portion 10a to make the pair of contacts 48 of the circuit board 45 conductive. As a result, the charging switch of the flash device 16 is turned on and the main capacitor 41
Is charged.

As shown in FIG. 1, the electric component 43 of the present invention
Has a cylindrical outer shape and a through hole 51 extending in the length direction at the center. The inner diameter of the through hole 51 is formed slightly larger than the outer diameter of the dry battery 42. Then, the dry battery 42 is inserted into the through hole 51 to form an electric component 43.

As shown in FIG. 4, the anode 42a of the dry battery 42 inserted into the through hole 51 contacts the anode battery contact piece 50a extending from the right end of the circuit board 45, and the cathode 42b of the dry battery 42 45 contacts the cathode battery contact piece 50b extending from the left side. And each battery contact piece 50
Power is supplied to the circuit board 45 through the terminals a and 50b.

As shown in FIG.
In the figure, a power storage unit 53 is sealed inside an aluminum outer can 52 having a through hole 51 formed at the center. The power storage unit 53 includes an aluminum anode foil 54 having an aluminum oxide film formed by anodizing the surface thereof, an aluminum cathode foil 55, and an electrolytic paper 56 sandwiched between them and impregnated with an electrolyte.

The band-shaped and long power storage bodies 53 having these layer structures are housed in a donut-shaped exterior can 52 in a state of being wound many times. As the electrolyte to be impregnated into the electrolytic paper 56, a material obtained by dissolving boric acid or ammonium borate in ethylene glycol is used.

The aluminum anode foil 5 wound inside the outer can 52
An anode rod 54a and a cathode rod 55a are fixed by caulking near the middle of the length of the aluminum foil 4 and the aluminum cathode foil 55, respectively. The anode rod 54a and the cathode rod 55a are
Protrudes out of the outer can 52 from an electrode hole 52a formed in the bottom of the outer can 52. A rubber packing 57 is fitted on the bottom side of the outer can 52 in which the electrode hole 52a is formed to prevent the liquid electrolyte soaked in the electrolytic paper 56 from leaking from the electrode hole 52a. .

The power storage body 53 is housed so that the electrical polarity of the inner wall of the outer can 52 forming the through hole 51 is the same as the electrical polarity of the outer body 42 c of the dry battery 42 inserted into the through hole 51. . For example, when the dry battery 42 is a manganese dry battery, the polarity of the exterior body 42c is “+”,
The power storage unit 53 is housed in the outer can 52 in a layered structure such that the aluminum anode foil 54 is the innermost periphery of the outer can 52.

The operation of the electric component of the present invention having the above configuration will be described. Conventionally, a main condenser and a dry battery, which were arranged with the independent storage spaces secured in the strobe device, are formed by forming a through hole 51 in the main condenser 42 and storing the dry battery 42 in the through hole 51. As shown in FIG. 6, the main capacitor 42 and the dry battery 42 can be housed collectively on the back side of the strobe light emitting section 46 by forming the integrated electric component 43.

For this reason, the storage space for the dry battery, which was conventionally formed independently below the lens-fitted film unit 2, can be eliminated, and the lens-fitted film unit 2 can be reduced in size. The dead space can be halved by integrating the dry cell 42 with the main capacitor 42, which is a cylindrical component having dead spaces at the four corners.

On the other hand, by making the electric polarity of the inner wall of the outer can 52 and the electric polarity of the outer body 42c of the stored dry battery 42 the same, a short circuit when the main capacitor 41 and the dry battery 42 are arranged close to each other is obtained. The risk of accidents can be reduced.

By forming the through-hole 51 for accommodating the dry battery 42 in the center of the main capacitor 42, the amount of storage of the power storage unit is reduced as compared with the conventional capacitor, but the material of the power storage unit and the type of electrolyte are required. By making a selection, it is possible to secure a storage capacity that is practically acceptable.

Further, in the above-described embodiment, an example in which the strobe device using the electric component of the present invention is mounted on a film unit with a lens is shown. It can be used just as well.

[0028]

(1) In the case of a combination of a AAA battery and a capacitor. Conventional example AAA battery: 10.3 mm diameter x 44.3 mm length 165 µF electrolytic capacitor: 13.4 mm diameter x 35.5 mm length Example of the present invention AAA battery: 10.3 mm diameter x 44.3 mm length (contained in hollow capacitor) Hollow 165 μF electrolytic capacitor: (inner diameter 10.8mm, outer diameter 16.2
mm) × length 35.5mm Therefore, the space for AAA batteries + capacitors can be cylindrical with a diameter of 16.2mm × length 35.5mm. When conventional AAA batteries and capacitors are stored independently as in the conventional case Dead space is reduced, and space utilization efficiency is improved.

(2) In the case of a combination of an AA battery and a capacitor. Conventional example AA battery: 14.2 mm in diameter x 50.2 mm in length 165 µF electrolytic capacitor: 13.4 mm in diameter x 35.5 mm in the present invention AA battery: 14.2 mm in diameter x 50.2 mm in length (encased in a hollow capacitor) Hollow 165 μF electrolytic capacitor: (14.7mm inside diameter, 18.6 outside diameter
mm) × length 50.2mm Therefore, the space for AA batteries + capacitors can be cylindrical with a diameter of 18.6mm × length 50.2mm, and the utilization efficiency of storage space is improved as in the case of AAA batteries + capacitors. , Dead space is also reduced.

[0030]

As described above, according to the present invention, in the electronic device for a strobe device comprising a cylindrical capacitor and a dry battery, the center of the capacitor has a width not less than the diameter of the dry battery. Since the through-hole extending in the length direction and having the inner diameter of is formed and the dry battery is inserted into the through-hole, it is possible to provide an electric component for a strobe device capable of greatly reducing the size of the strobe device.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an electric component for a flash device according to the present invention.

FIG. 2 is an external perspective view showing a film unit with a lens on which a strobe device using the electric component of the present invention is mounted.

FIG. 3 is an exploded perspective view of FIG. 2;

FIG. 4 is an exploded perspective view showing the strobe device.

FIG. 5 is a partially cutaway view of FIG.

FIG. 6 is a top sectional view of the film unit with a lens shown in FIG. 2;

[Explanation of symbols]

 Reference Signs List 16 Strobe device 31 Light emitting unit 41 Main capacitor 42 Dry battery 45 Circuit board 51 Through hole 52 Outer can 53 Power storage unit 54 Aluminum anode foil 55 Aluminum cathode foil 56 Electrolytic paper 57 Rubber packing

Claims (2)

[Claims] An electronic component for a strobe device, comprising a cylindrical capacitor and a dry battery, constituting a strobe device, wherein a central portion of the capacitor extends in a length direction with an inner diameter having a width equal to or larger than the diameter of the dry battery. An electric component for a flash device, wherein a through hole is formed, and the dry battery is inserted into the through hole. 2. The strobe device according to claim 1, wherein the electrical polarity of the inner wall of the through hole of the capacitor is the same as the electrical polarity of the outer wall of the dry battery inserted into the through hole. Electrical component.