JPH06138523A - Film unit with lens and built-in stroboscope - Google Patents

Abstract

PURPOSE:To prevent the disconnection, etc., of the lead wire of a main capacitor caused by a physical stress due to pressure, vibration, etc., by stacking in the transportation, etc., of a film unit with a lens and a built-in stroboscope and simultaneously to permit space saving and manufacturing cost reduction in the film unit with the lens and the built-in stroboscope. CONSTITUTION:A main capacitor 18 is wired on a stroboscopic base plate 16 on which an electric flash light emitting tube 8. etc., are mounted, by the lead wire 22. A restraining pawl 19 serving for stopping rock as well integrally formed with a rear cover 3 and attached to a front cover in a restraining hole 20 is abutted on the outer periphery of the tube 8 on the cylindrical end part of the main capacitor 18. Moreover, a rib 23 is integrally provided to project toward the main capacitor 18 on a main body part 1.

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 incorporating a strobe device.

[0002]

2. Description of the Related Art In a film unit with a lens, which has a built-in unexposed film, a photographing mechanism such as a photographing lens and a shutter, and a strobe device which emits light upon shutter release, the main condenser of the strobe device is The strobe board has the rigidity of two metal lead wires soldered onto the strobe board for wiring the main capacitor to the strobe board on the strobe board on which the components of the apparatus are placed and wired. It is fixed on.

[0003]

However, the main capacitor is placed and fixed on the strobe board only by the rigidity of the two lead wires made of metal, and is not placed and fixed around the main capacitor. Since there is a space between other parts, the lead wire of the main capacitor is distorted due to vibration when transporting the film unit with a lens with a built-in strobe, which causes disconnection due to physical stress on the lead wire. There is a possibility that peeling of the soldered portion to the board may occur.

Therefore, in order to prevent the distortion of the lead wire of the main capacitor, it is conceivable to newly provide a shake preventing member such as a protrusion for contacting the main capacitor to limit the shake, but the lens-fitted film unit. Due to the nature of the product, it is necessary to make the product as small and low cost as possible, and adding one new component for the purpose of limiting the vibration by contacting the main capacitor leads to an increase in manufacturing cost. In addition, there is a problem in that it saves space.

The present invention has been made in consideration of the above problems of the prior art, and it is possible to prevent the lead wire of the main capacitor for strobes from being disconnected or disconnected, and at the same time, it is a space-saving and low-cost film unit with lens. The purpose is to provide.

[0006]

In order to achieve the above object, one of a unit main body, a front cover and a rear cover is integrally formed with a locking pawl for connecting them to each other, and a main body of the strobe device is provided with a locking pawl. It is provided so as to be close to or in contact with the outer circumference of the capacitor, and limits the movement of the main capacitor.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is an exploded perspective view of a lens-fitted film unit with a built-in strobe device embodying the present invention. The unit is composed of a main body 2, a front cover 1 and a rear cover 3 which are claw-fastened to the front and rear of the main body 2, and stores a cartridge 4 and a film 5 pulled out from the cartridge 4 inside. The front cover 1 has a hole for exposing a taking lens 6, a finder 7, a strobe light emitting portion 8 including a strobe light emitting tube and a reflecting mirror, and a winding knob 9 for rotating the spool of the cartridge 4 to wind the film 5. Is provided.

The front cover 1 also has a release button 10 integrated with the front cover 1, a shot number display window 12 for displaying a part of the shot number display plate 11, and a flash substrate 16.
A strobe switch 13 for charging the upper main capacitor 19 and the like are provided. A cartridge chamber 14 and a film chamber 15 are formed at both ends of the main body 1, and a cartridge 4 and a film 5 are housed therein. Further, on the front surface of the main body portion 1, a main capacitor 18 and a strobe board 16 on which components necessary for a known strobe circuit such as a strobe light emitting portion 8 are mounted and wired are attached.

A rigid lead wire 22 is connected to one end of the main capacitor 18, and the tip of the lead wire 22 is soldered to a predetermined position of the strobe board 16.
Then, the main capacitor 18 is held at a predetermined position in a state of floating from the strobe substrate 16 due to the rigidity of the lead wire 22.

Further, ribs 23 projecting toward the main condenser 18 are integrally provided on the inner wall of the side surface of the main body 2. The tips of the ribs 23 have a pair of lead wires 2
It passes through the space between the two and approaches one end of the main capacitor 18.

The rear cover 3 is integrally formed with a plurality of locking claws 17 for engaging the front cover 1 with the main body 2 interposed therebetween, and a locking claw 19 also serving as an anti-sway. The front cover 1 and the rear cover 3 are integrally joined. The anti-sway locking claw 19 engages with the locking hole 20 of the front cover 1, but in the engaged state, the anti-sway locking claw 19 is located close to the other end of the main capacitor 18. Therefore, the swinging / locking claw 19 and the rib 23 are in close proximity to the respective ends of the main capacitor 18.

The operation of the above configuration will be described. When the respective components of the film unit with a lens with a built-in strobe device shown in FIG. 2 are integrally connected by the locking claw 17 and the locking claw 19 which also functions as a shake preventive, the rib 23 approaches one end of the main condenser 18. The locking claw 19 that also functions as a shake stopper approaches the other end. Therefore, the main capacitor 1 held on the strobe substrate 16 by the lead wires 22
In the case of No. 8, the movement in the left-right direction is restricted by the locking claw 19 that also functions as a shake and the rib 23.

As a result, the main capacitor 18 does not largely move to the left or right when the manufactured film unit with a built-in strobe device with a lens is transported or when some shock or vibration is applied during its use, and the wire breakage occurs. It is possible to reduce contact failure due to peeling of the soldered portion. It should be noted that the vertical swing of the main capacitor 18 does not become so large because the lead wires 22 are arranged vertically, but ribs or locking claws for restricting the vertical swing may be further provided. .

[0014]

As described above, according to the present invention, the locking claws for coupling the main body of the film unit with a built-in strobe lens, the front cover and the rear cover are also used for preventing the main capacitor from shaking. This is more effective in reducing the manufacturing cost and downsizing the unit than in the case where a new component for fixing the main capacitor is provided. In addition, since the main capacitor does not shake greatly from the predetermined mounting position even if shock or vibration is applied during transportation of the film unit with a lens with a built-in flash,
It is effective in reducing disconnection and disconnection of the lead wire of the main capacitor.

[Brief description of drawings]

FIG. 1 is a plan view of the periphery of a strobe substrate of a lens-fitted film unit with a built-in strobe device according to the present invention, as seen from directly above.

FIG. 2 is an exploded perspective view of a lens-fitted film unit with a built-in strobe device according to the present invention.

[Explanation of symbols]

 1 Front Cover 2 Main Body 3 Rear Cover 16 Strobe Device 17 Locking Claw 18 Main Capacitor 19 Locking Locking Claw 21 Lead Wire 23 Rib

Claims (1)

[Claims] 1. A unit body in which an unexposed film is built-in in advance and which has a photographing lens, a shutter, a strobe device, etc., and a front cover for covering the unit body from the front and back, and a strobe built-in lens unit consisting of a rear cover. , A front cover or a rear cover, and locking claws for connecting them to each other are provided at a position close to or in contact with the outer peripheral portion of the main condenser of the strobe device. A film unit with a lens with a built-in strobe that features a structure that limits the vibration of the camera.