JPH10312010A - Stroboscope device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the shape of a trigger armature and assembling as well. SOLUTION: The trigger armature 50 consists of a conductive metallic piece for a trigger 58 constituted in such a manner that a trigger terminal 50a and a connecting terminal are integrally formed and an insulating cover for covering the part of the metallic piece for the trigger 58 between the trigger terminal 50a and the connecting terminal. The trigger armature 50 can be arranged in proximity to a main capacitor 30 by the insulating cover. Further, a bigger armature 57 is formed to such a shape that when the trigger terminal 50 is inserted into the trigger opening 41 of a reflector case 39, the trigger output terminal 48 of a trigger coil 47 is inserted into the terminal hole 60a of a connecting terminal 60, simultaneously with the insertion of the trigger terminal 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flash device.

[0002]

2. Description of the Related Art A film unit with a lens in which an unexposed photographic film is loaded in advance in a unit body having a built-in simple photographing mechanism is manufactured and sold by the present applicant. There are various types of film units with lenses, and some have built-in strobe devices so that they can be taken indoors or at night. The strobe device built into such a film unit with a lens has a simplified structure in order to manufacture the film unit with a lens at low cost, and prints electrical components forming a strobe light emitting unit and a strobe circuit. Attached to the substrate and unitized.

[0003] The structure of the above-mentioned strobe light emitting section is composed of a strobe discharge tube which emits light when electric charges charged in the main capacitor are discharged therein, a reflector which reflects the light of this strobe discharge tube forward, a diffuser, It comprises a plate and a reflector case for storing and holding these. The reflector is formed by bending a conductive material, for example, an aluminum plate, and the strobe discharge tube is arranged such that its outer peripheral surface is in contact with the curved inner wall surface of the reflector. A trigger terminal is provided in the reflector case, and the trigger terminal is in contact with the outer wall surface of the reflector case. Thus, the trigger voltage generated by the trigger transformer at the moment when the shutter is released is applied to the strobe discharge tube via the trigger terminal and the reflector.

Since the trigger voltage is an extremely high voltage of, for example, 4 KV, a current caused by the trigger voltage leaks to other electric components constituting the strobe circuit, for example, a terminal such as a neon tube, a strobe discharge tube, a resistor, and a main capacitor. May be. If the current due to the trigger voltage leaks to other components, there is a possibility that the strobe discharge tube does not emit light or the electric component having the leaked current is destroyed. The case of the main capacitor is usually covered with an insulating sheath. However, the sheath may have a pinhole (hole), and a current due to a trigger voltage may leak through the pinhole.

For this reason, the trigger terminal is connected to the trigger output terminal of the trigger coil by a lead wire having a metal wire coated with insulation. There is also a device using a trigger contact piece formed by processing a metal plate having a trigger terminal integrally formed at one end.
As shown in FIG. 9, an example of a strobe device using this trigger contact piece is a trigger terminal 70a at one end of the trigger contact piece 70.
On the other end, a connection terminal 70b connected to the trigger output terminal 71a of the trigger coil 71 is integrally formed.
The trigger terminal 70a is incorporated into the reflector case 72 from the front, and then the reflector 73, the strobe discharge tube 74, and the diffusion plate 75 are assembled to the reflector case 72. Also, the connection terminal 7 at the other end
0b is connected to a trigger output terminal 71a of a trigger coil 71 arranged on the back side of the printed circuit board 76.

The trigger contact piece 7 formed by processing a metal plate as described above
0, the trigger terminal 70a and the connection terminal 70a
If the portion between the gate and b is close to another component, the current due to the trigger voltage leaks from this portion to the adjacent electrical component. Therefore, the trigger terminal 70 of the trigger contact 70
The portion between a and the connection terminal 70b is routed around the printed circuit board 76 from under the reflector case,
It is arranged more than a certain distance from other parts.

[0007]

However, when a lead wire is used as described above, there has been a problem that it is difficult to mechanically assemble the lead wire at the time of manufacturing a flash device. In particular, the wiring and soldering of the lead wire to the trigger output terminal of the trigger transformer, and the insertion of the lead wire into the reflex case are difficult to automate by a machine, which is a manual process, and the manufacturing efficiency of the strobe device deteriorates. Was.

On the other hand, when the trigger contact piece as described above is used, it is possible to assemble by a machine, but extra space is required because the trigger contact piece is arranged at least a certain distance from other electric parts. This has hindered miniaturization of a strobe device and a film unit with a lens in which the strobe device is built. In addition, since the trigger contact piece has a shape that is separated from other electric components by a certain distance or more, the shape becomes complicated, a mold for manufacturing the trigger contact piece becomes expensive, and the trigger contact piece becomes expensive. There was a problem that the unit price became high.

Further, in the case of the strobe device shown in FIG. 9, the trigger contact piece is arranged so as to avoid the main condenser arranged behind the reflector case, and can be automatically assembled. Because of this, the trigger terminal is assembled on the front (front) of the reflector case.
After connecting the strobe light emitting part with the strobe discharge tube etc. to the reflector case on the printed circuit board, connect the connection terminal to the trigger transformer from the back (back side) side of the printed circuit board, and then solder Had to be attached. For this reason, after assembling the trigger terminal to the reflector case, the printed circuit board must be turned upside down, which complicates the manufacturing process. In addition, the assembly of the trigger contact piece and the soldering of the connection terminal to the trigger output terminal have to be performed in separate steps from such circumstances, and there is a problem that the number of assembly steps is increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has advantages in that the shape of the trigger contact piece is simplified, the manufacturing process of the strobe device is simplified, and low coasting and miniaturization are achieved. An object of the present invention is to provide a strobe device.

[0011]

In order to achieve the above object, according to the first aspect of the present invention, the trigger contact piece is connected to a trigger terminal which is inserted into the reflector case and comes into contact with the reflector and an output terminal of the trigger coil. A conductive plate integrally formed with connection terminals to be engaged and connected, and at least the conductive plate is arranged close to other components of the strobe circuit between the trigger terminal and the trigger coil of the conductive plate. And an insulative coating that covers the portion to be covered. According to the second aspect of the present invention, the covering covers the portion of the conductive plate between the trigger terminal and the connection terminal.

According to the third aspect of the present invention, the trigger contact piece is
The trigger terminal is inserted into the reflector case in one direction and assembled to the strobe light emitting portion, and the connection terminal engages with the output terminal of the trigger coil when the trigger terminal is inserted in one direction. According to the fourth aspect of the present invention, the trigger terminal is made elastically deformable, and the pressing portion that elastically deforms the inserted trigger terminal and presses the front end portion against the outer wall surface of the reflector is brought into contact with the reflector case. It is formed.

According to a fifth aspect of the present invention, the trigger terminal is provided with a retaining means for preventing the trigger terminal from falling out of the strobe light emitting section. According to the sixth aspect of the present invention, the trigger terminal is connected to the reflector case. The retaining means is formed integrally with the trigger terminal and is a retaining piece rising from the trigger terminal. When the trigger terminal is inserted into the opening, the retaining means is retained. Insertion of the trigger terminal is allowed by the piece being in contact with the opening and elastically deforming, and after insertion, the trigger terminal rises from the trigger terminal, contacts the inner wall surface of the reflector case, and prevents the trigger terminal from falling out of the strobe light emitting portion. It is to prevent.

[0014]

FIG. 2 shows an external view of a film unit with a lens incorporating a strobe device embodying the present invention. The lens-fitted film unit 10 is a unit body 1 having a simple photographing mechanism and an unexposed photographic film.
1 and a label 12 that covers a part of the unit body 11. The label 12 is wound so as to expose the photographing lens 13, the finder 14, the winding knob 15, the shutter button 16, the strobe light emitting unit 17, and the like.

A charging button 18 is provided below the strobe light emitting section 17 on the front right side of the unit body 11. By pressing the charge button 18, the main capacitor 30 (see FIG. 3) is charged.
In the film unit 10 with the lens, if the charge button 18 is pressed once, the charge button 18
Is released until the main capacitor 30 reaches the specified charging voltage, and is recharged each time the strobe light is emitted. Therefore, the charge button 1
It is not necessary to perform the operation 8 and the charging button 18 is pressed only when the charging voltage of the main capacitor 30 is low.

FIG. 3 is an exploded view of the unit body 11. The unit body 11 includes a cartridge 20a of the film cartridge 20 and the cartridge 20a.
a main body base 21 into which a photographic film 20b pulled out from the main body 21 is loaded, an exposure unit 22 and a strobe device 23 mounted on the front surface of the main body base 21, and a main body base 2
1, a front cover 24 that covers the exposure unit 22 and the strobe device 23, and a rear cover 25 that is mounted on the back side of the main body base 21 and stores the photographic film 20b between the main body base 21 in a light-tight manner. And a battery 26 serving as a power supply for the strobe device 23.

The exposure unit 22 includes a counter mechanism for displaying the number of frames that can be photographed, a shutter mechanism, a one-frame feed mechanism for feeding a photographic film one frame at a time, and a photographic lens 1.
3, and the finder 14 are assembled into a unit.

The main body 21 has a cartridge chamber 21a in which the cartridge 20a is loaded and a cartridge 20a.
a, a film storage chamber 21b for storing a roll of unexposed photographic film 20b drawn out of a. These bottom surfaces are openings, and are closed by bottom covers 25a and 25b formed on the rear cover 25. The bottom lid 25a of the cartridge chamber 21a is openable and closable by engagement of a claw. After the photographing of all the frames of the photographic film 20b is completed, a bottom cover for taking out the cartridge 20a containing the photographed photographic film 20b is provided. Become.

A winding knob 15 is rotatably disposed above the cartridge chamber 21a. This winding knob 1
5 is rotated in the counterclockwise direction in the drawing, the photographed photo film 20b is taken in the cartridge 20a, and the unexposed portion is pulled out of the film storage chamber 21b, and set behind the aperture 21c. Is done.

A release button 16 is integrally formed on the upper surface of the front cover 24. Also, the front cover 24
An opening for exposing the photographing lens 13, the finder 14, and the strobe light emitting unit 17 is formed on the front surface of the camera, and a charge button 18 is integrally formed.

The strobe device 23 includes a strobe light emitting unit 1
7. Electric components such as a main capacitor 30 constituting a strobe circuit, a battery 26, and a pair of electrode plates 31 for holding the battery 26 and connecting to the strobe circuit.
a, 31b, synchro switch 32, charge switch 33
And the like are assembled on a printed circuit board 35.

The synchro switch 32 is formed by arranging two metal contact pieces vertically at a predetermined interval. When the shutter mechanism fully opens the shutter blade, the upper metal contact piece is elastically deformed downward. ON by contacting the lower metal contact piece. The charge switch 33 includes a pair of wiring patterns 33a and 33b formed on the printed circuit board 35.
And a metal contact piece 33c. This charge switch 33
When the charge button 18 is pressed, the metal contact piece 33c comes into contact with each of the wiring patterns 33a and 33b, and is turned on by connecting these.

As shown in FIG.
Comprises a strobe discharge tube 36, a reflector 37, a diffusion plate 38, and a reflector case 39.
As is well known, the strobe discharge tube 36 is a discharge tube main body 36a made of glass filled with Xe gas. When a predetermined voltage is applied to both terminals 36b by the main capacitor 30, a high voltage, for example, 4 KV Is applied to the outer peripheral surface of the discharge tube main body 36a, so that the internal X
e gas is ionized. As a result, the electric charge charged in the main capacitor 30 due to the breakage of the insulation between the terminals 36b is discharged in the discharge tube main body 36a, and the strobe light is emitted.

The reflector 37 is a thin metal plate having a conductive property, for example, an aluminum plate which is curved in a parabolic shape, and has a hole 3 through which a strobe discharge tube 36 is passed.
7a are formed. The reflector 37 is fitted in a reflector case 39, and reflects forwardly the strobe light emitted from the strobe discharge tube 36 on its inner surface. The inner surface of the reflector 37 is brought into contact with the outer peripheral surface of the discharge tube main body 36a, so that a trigger voltage is applied to the strobe discharge tube 36 via the reflector 37. The diffusion plate 38 is attached to the front of a reflector case 39 in which the reflector 37 and the strobe discharge tube 36 are assembled, and the strobe discharge tube 3
The strobe light from 6 and the strobe light reflected by the reflector 37 are diffused and emitted forward.

The reflector case 39 is made of plastic. The strobe discharge tube 36 is passed through both sides of the reflector 37 facing the hole 37a, and both ends of the discharge tube main body 36a are sandwiched therebetween. A holding member 39a for holding the strobe discharge tube 36 is formed. The engaging claw 3 is provided on one side of the reflector case 39.
9b and pins 39c are formed, and the strobe light emitting unit 17 is attached from the back side of the printed circuit board 35 by these.

A trigger opening 41 penetrating through the rear wall surface is provided below the rear wall surface of the reflector case 39.
Are formed. The trigger terminal 50 is inserted into the reflector case 39 from the rear side through the trigger opening 41. Further, a convex pressing portion 42 raised one step higher than the inner wall surface is formed on the lower inner wall surface of the reflector cage 39.

FIG. 5 schematically shows a flash circuit of the flash device 23. The charge switch 33 is connected to the booster circuit 45. When the charge switch 33 is turned on, the booster circuit 45 operates using the battery 26 as a power source, boosts a low voltage of the battery 26 to a high voltage, for example, 300 V, and charges the main capacitor 30 with the high voltage. The trigger capacitor 46 is charged together with the charging of the main capacitor 30. When the main capacitor 30 is charged to the specified charging voltage, the booster circuit 45
Stop operation and stop charging.

The trigger capacitor 46 discharges when the synchro switch 32 is turned on, and passes the discharge current to the primary coil 47a of the trigger coil 47. Trigger coil 47
Is an extremely large winding ratio between the primary coil 47a and the secondary coil 47b. When a discharge current from the trigger capacitor 46 flows through the primary coil 47a, a trigger voltage of, for example, 4 KV is applied to the secondary coil 47b. Occur. One end of the secondary coil 47b is grounded via the sync switch 32, and the other end is a trigger output terminal 48 for outputting a trigger voltage. Trigger output terminal 4
The trigger voltage from the strobe discharge tube 3 is transmitted through the trigger terminal 50 and the reflector 37 of the strobe light emitting unit 17.
6 is applied.

The neon tube 52 lights up when the main capacitor 30 is charged to a specified charging voltage. The light from the neon tube 52 is guided into the finder 14 by a light guide. As a result, it is possible to confirm in the finder 14 that strobe light emission is ready.

FIG. 6 shows the back side of the strobe device 23.
The strobe light emitting unit 17 is attached to the upper part of the printed circuit board 35 by the engaging claws 39b and the pins 39c of the reflector case 39 with the diffusion plate 38 facing the front side of the printed circuit board 35. Behind the strobe light emitting portion 17, a main capacitor 30 is disposed, and each terminal 36b of the strobe discharge tube 36 is connected to a strobe contact piece 53.
a and 53b are connected to a wiring pattern on the printed circuit board 35 connected to each terminal of the main capacitor 30.

On the back side of the printed circuit board 35, in addition to the main capacitor 30, an oscillating transistor 54, an oscillating transformer 55, a rectifying diode 56, a rectifying diode 46, a trigger capacitor 46, a neon tube 52, etc., which constitute a booster circuit 45, are arranged. Have been. Each of these electric components has its lead terminal passed through a through hole of the printed circuit board 35 and is soldered to a land on the front surface of the printed circuit board 35. Note that chip-type electric components constituting the strobe circuit are surface-mounted by directly soldering to a wiring pattern on the front surface of the printed circuit board 35.

A trigger coil 47 is arranged below the main capacitor 30 on the back side of the printed circuit board 35. The trigger coil 47 has a trigger output terminal 48
The other terminals except for are passed through the through holes in the same manner as the other electric components, and are soldered to the lands on the front surface of the printed circuit board 35. The trigger output terminal 48 is provided above a trigger coil 47 having a substantially rectangular parallelepiped shape, and has a shape protruding rearward of the printed circuit board 35 from above the trigger coil 47. A trigger contact piece 57 is attached to the trigger output terminal 48.

As shown in FIG. 7, the trigger contact piece 57 is composed of a trigger metal piece 58 as a conductive plate and an insulating coating 59. The trigger metal piece 58 is formed by bending and punching a metal plate having conductivity and elasticity, and has a trigger terminal 5 that is in contact with the reflector 37 at one end.
0 is the other end of the connection terminal 6 connected to the trigger output terminal 48
0 are integrally formed.

The trigger terminal 50 is inserted into the reflector case 37 through the trigger opening 41, and the tip of the trigger terminal 50 contacts the reflector 37 to be electrically connected. Further, a plate-shaped stopper piece 50a is formed integrally with the trigger terminal 50. The retaining piece 50a is formed by punching out the center of the trigger terminal 50 into a rectangular shape so that one side on the tip side of the trigger terminal 50 is connected to the trigger terminal 50.
It stands on one side connected to 0 as an axis. The retaining piece 50a is moved from the upright position to the upright position.
With one side connected to the trigger terminal 50 as an axis, it can be elastically deformed to a retracted position that falls down in the direction of the arrow in the drawing so as to form substantially the same plane as the trigger terminal 50.

When the trigger terminal 50 is inserted into the trigger opening 41, the retaining piece 50a falls down to the retracted position by abutting on the periphery of the trigger opening 41, thereby allowing the trigger terminal 50 to be inserted into the trigger opening 41. I do. Further, after the trigger terminal 50 is inserted into the trigger opening 41, it is restored to the standing position by its elastic force.

In order to simplify the process of assembling the trigger contact piece 57, the connecting terminal 60 is formed by taking into account the direction in which the trigger terminal 50 is inserted into the reflector case 39, the position of the output terminal 48 of the trigger coil 47, and the projecting direction. At the same time that the trigger terminal 50 is inserted into the reflector case 39 in one direction (insertion direction) and assembled, the connection terminal 60 is connected to the output terminal 48.
The shape is determined so as to engage with.

In this strobe device 23, the trigger terminal 5
0 is inserted forward from the back of the reflector case 39, and the trigger output terminal 48 protrudes to the rear of the printed circuit board 35 (reflector case 39), so that the connection terminal 60 has a plate shape bent downward. The surface faces in a direction perpendicular to the surface of the trigger terminal 50, that is, in the front-rear direction of the strobe device 23, and a terminal hole 60 a is formed in the connection terminal 60. When the trigger terminal 50 is inserted into the trigger opening 41, the connection terminal 60 is positioned, and the trigger output terminal 48 is inserted into the terminal hole 60a.
The connection terminal 60 is engaged with the trigger output terminal 48. The connection terminal 60 is electrically connected to the trigger output terminal 48 by soldering.

The insulating coating 59 is made of an insulating material, for example, polyethylene terephthalate (PET), and a metal piece 58 for triggering.
And is formed on a portion of the trigger metal piece 58 excluding the trigger terminal 50 and the connection terminal 60. That is, the trigger metal piece 58 is connected to the trigger terminal 50.
Only the portion of the connection terminal 60 is exposed to the outside, and the other portion is covered with the insulating coating 59 so as not to be exposed to the outside.

With this insulating coating 59, the trigger coil 4
The current generated by the trigger voltage generated in step 7
8 prevents leakage to other electric components, for example, the main capacitor 30, and allows the trigger metal piece 58 to be disposed in close proximity to the other electric components. Is as simple as possible. Further, since the trigger metal piece 58 can be brought close to other electric components, the degree of freedom of the shape of the trigger metal piece 58 increases, so that the trigger terminal 50 and the connection terminal 60 are connected as described above. At the same time, the shape of the trigger contact piece 57 that can be assembled to the corresponding portion can be provided. It should be noted that only the portion where the trigger metal piece 58 is not arranged at a predetermined distance from other components is insulated and coated.
May be formed.

FIG. 8 schematically shows a cross section of a main part of the strobe device 23. The trigger contact piece 57 is connected to the main capacitor 30.
, The trigger terminal 50 is inserted into the lower part of the reflector case 39 from the trigger opening 41, and the connection terminal 60 is engaged with and connected to the trigger output terminal 48 of the trigger coil 47. Although the main capacitor 30 and the trigger contact piece 57 are arranged very close to each other, the trigger metal piece 58 has the insulating coating 59 formed thereon, so that the current due to the trigger voltage leaks to the main capacitor 30. Never. Further, since the trigger connecting piece 57 can be arranged close to the main capacitor 30 in this manner, a space is saved.

From the trigger opening 41 to the reflector case 39
The pressing portion 42 formed on the inner wall of the reflector case 39 prevents the trigger terminal 50 inserted therein from being deformed in a direction away from the reflector 37 at a root portion (a portion near the trigger opening 41). The pressing portion 42 causes the distal end of the trigger terminal 50 to be bent by the curved reflector 3.
The outer wall of the reflector 37 is elastically deformed in contact with the outer wall of the reflector 37, and the outer wall of the reflector 37 is pressed by the restoring force due to the elastic deformation. Thus, electrical connection between the reflector 37 and the trigger terminal 50 is ensured, and a trigger voltage is applied to the strobe discharge tube 36.

In the trigger terminal 50 inserted into the reflector case 39, an upright retaining piece 50 a comes into contact with the inner wall surface of the reflector case 39. This prevents the trigger contact piece 57 from coming off the reflector case 39 after the trigger terminal 50 is inserted. further,
The retaining piece 50a can also prevent the trigger terminal 50a elastically deformed in contact with the outer wall surface of the reflector 37 from moving in the direction of coming out of the trigger opening 41 by its restoring force. This ensures that the reflector 3
7 can be brought into contact with the trigger terminal 50. Note that the trigger terminal 50 can be prevented from coming off by other methods.

Next, the operation of the above configuration will be briefly described. The film unit with lens 10 is
During the transportation of the unit body, the exposure unit 22, the strobe device 23, the film cartridge 20 and the like manufactured on different manufacturing lines are assembled to the main body base 21, and the front cover 24 and the rear cover 25 are further attached. 11 is completed. Then, the label 12 is wound around the unit main body 11, whereby the film unit with lens 10 is completed.

In the manufacture of the strobe device 23, chip components are temporarily mounted on the front surface of a printed circuit board 35 having a predetermined wiring pattern and a solder resist formed on the front surface (front surface). After this, the main capacitor 30 and the trigger coil 4
7, electrical components with lead terminals such as the oscillating transistor 54 and the oscillating transformer 57 are temporarily mounted by passing the lead terminals through the through holes from the back side of the printed circuit board 35. Further, a strobe contact piece 53b is arranged on the back surface of the printed circuit board 35, and a part thereof is temporarily mounted through a through hole. The main capacitor 30 is temporarily mounted in a state of standing upright from the printed circuit board 35 as shown in FIG.

As described above, the printed circuit board 35 on which the electric components are temporarily mounted is soldered to the lands by a known flow soldering method (dip method) or the like. Thereby, the wiring pattern and each electric component are electrically connected. The printed circuit board 35 is sent to an assembling step of the strobe light emitting unit 17.

In the assembling step of the strobe light emitting section 17, the printed circuit board 35 and the strobe light emitting section 17 in which the strobe discharge tube 36, the reflector 37, and the diffusion plate 38 are previously assembled in the reflector case 39 are conveyed.
Then, with the back surface of the printed circuit board 35 facing upward,
The strobe light emitting unit 17 is mounted on the printed circuit board 35 by inserting the engaging claws 39b and the pins 39c of the reflector case 39 into mounting holes (not shown) of the printed circuit board 35 from above.
Assembled in

In the printed circuit board 35 on which the strobe light emitting portion 17 is assembled, one terminal 36b of the strobe discharge tube 36 is soldered to the strobe contact piece 53b in the next step, and the remaining strobe contact piece 53a is connected to the strobe contact piece 53b. Assembled. Then, one end of the strobe contact piece 53a is soldered to the other terminal 36b of the strobe discharge tube 36, and the other end is soldered to the wiring pattern 35. Thereby, the main capacitor 30 is connected to the strobe discharge tube 36. The printed circuit board 35 to which the strobe discharge tube 36 and the main capacitor 30 are connected is sent to the step of assembling the trigger contact piece 57.

In the process of assembling the trigger contact piece 57, as shown in FIG. 1, for example, the trigger contact piece 57 is automatically assembled by an assembling machine with the printed board 35 facing up. First, the printed circuit board 35 is transported to the position of the assembling machine and stopped. At this time, a trigger contact piece 57 is held on the arm of the assembling machine such that the trigger terminal 50 faces downward and the connection terminal 60 is horizontal, and the trigger opening 41 is positioned directly below the trigger terminal 50. Transport is stopped in this manner.

When the printed circuit board 35 is stopped as described above, the trigger contact piece 57 is lowered by the arm. Thereby, the trigger terminal 50 is connected to the trigger opening 41.
Is inserted into. When the trigger terminal 50 is inserted, the retaining piece 50a at the upright position is inserted into the trigger opening 4.
When it comes into contact with the peripheral edge of No. 1, it is elastically deformed toward the retracted position. Thereby, the trigger terminal 50 is inserted from the trigger opening 41 into the reflector case 39. Then, after the insertion is completed, the retaining piece 50a is restored to the standing position.

The inserted trigger terminal 50 has its distal end in contact with the outer wall surface of the reflector 37 and attempts to elastically deform from the root in a direction away from the reflector 39.
The deformation is prevented by the pressing portion 42. Also, the retaining piece 50a comes into contact with the reflector case,
The trigger terminal 50 does not move in a direction to come out of the trigger opening 41. Therefore, as shown in FIG.
Only the tip of the trigger terminal 50 is elastically deformed and comes into contact with the outer wall surface of the reflector 37, and the tip is strongly contacted with the reflector 37 by the restoring force of the elastic deformation.

On the other hand, the connection terminal 60 is shaped such that when the trigger terminal 50 is inserted into the trigger opening 41, the terminal hole 60a is inserted into the trigger output terminal 48. When the printed circuit board 35 is stopped so that the trigger opening 41 is located immediately below the terminal 50, the terminal hole 60 is provided immediately above the output terminal 48 of the trigger coil 47 attached to the back of the printed circuit board 35.
a will be located.

Then, the trigger opening 41 of the trigger terminal 50
The connection terminal 60 is connected to the trigger coil 4
7, and the trigger output terminal 48 is inserted into the terminal hole 60a at the same time when the insertion of the trigger terminal 50 is completed. In this way, at the same time when the trigger terminal 50 of the trigger contact piece 57 is assembled to the strobe light emitting section 17,
Since the connection terminal 60 is engaged with the trigger output terminal 48,
The assembly process of the trigger contact piece 57 is simplified.

Immediately after the trigger contact piece 57 is assembled, the trigger output terminal 48 and the connection terminal 60 are soldered, and the trigger terminal 50 is electrically connected to the trigger output terminal. As a result, the reflector 37 is electrically connected to the trigger output terminal 48. At this time, the trigger contact 5
7 is such that the stopper piece 50a stands up in the reflector case 39 and comes into contact with the reflector case 39, so that the trigger contact piece 57 is inserted between the mounting of the trigger contact piece 57 and the soldering. The trigger output terminal 48 does not fall out of the reflector housing 39 or the terminal hole 60a.

The steps of assembling the trigger contact piece 57 and soldering may be performed separately. In addition, the trigger contact piece 57
May be incorporated in the strobe light emitting unit 17, and when the strobe light emitting unit 17 is attached to the printed circuit board 35, the connection terminal 60 may be engaged with the trigger output terminal 48. There is a possibility that the trigger connecting piece 57 may be deformed while the strobe light emitting unit 17 is being transported toward the process or when the strobe light emitting unit 17 is stored. Therefore, it is preferable to attach the trigger contact piece 57 as described above.

After the trigger output terminal 48 and the connection terminal 60 are soldered, the main capacitor 3
The lead terminal of the main capacitor 30 is bent.
Are arranged at predetermined positions. Also, on the printed circuit board 335,
The sync switch 32 and the pair of electrode plates 31a and 31b are mounted and soldered to complete the strobe device 23. The completed strobe device 23 is inspected for soldering,
Those that have passed this inspection are sent to the process of assembling to the unit body 21.

The strobe device 23 manufactured as described above
When the strobe light is emitted, the trigger voltage output from the trigger output terminal 48 of the trigger coil 47 is transmitted from the connection terminal 60 of the trigger metal piece 58 of the trigger contact piece 57 to the trigger terminal 50, and the trigger terminal 50 Is transmitted to the reflector 39, and is applied to the strobe discharge tube 36 from the reflector 39. And the metal piece 58 for a trigger is
Although it is arranged close to the main capacitor 30, a current due to the trigger voltage does not leak to the main capacitor 30 because the insulating coating 59 is formed on the surface of the trigger metal piece 58.

In the above embodiment, the film unit with a lens has been described. However, the present invention can be applied to a strobe device used for various cameras.

[0058]

As described above, according to the present invention,
A trigger terminal inserted into the reflector case and in contact with the reflector, and a connection terminal engaged with and connected to the output terminal of the trigger coil are integrally formed on the conductive plate, and the conductive plate is provided with an insulating coating. Is formed as the trigger contact piece, so that the trigger contact piece can be arranged close to other electric components, and an extra space can be eliminated. In addition, since there is no need to dispose other electrical components, the degree of freedom of the shape of the trigger contact piece is increased, the shape of the trigger contact piece can be simplified, and the manufacturing cost of the trigger contact piece can be reduced. Can be lower.

Further, since the degree of freedom of the shape of the trigger contact piece is increased, the trigger terminal and the connection terminal can be assembled to the corresponding portions at the same time, and the manufacturing process of the strobe device can be simplified. And the number of steps can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a trigger contact piece of a strobe device embodying the present invention is assembled.

FIG. 2 is a perspective view showing an appearance of a film unit with a lens.

FIG. 3 is an exploded perspective view showing the unit main body in an exploded manner.

FIG. 4 is an exploded perspective view showing an exploded strobe light emitting unit.

FIG. 5 is a circuit diagram showing a strobe circuit.

FIG. 6 is a perspective view showing the strobe device from the back.

FIG. 7 is a perspective view showing a trigger contact piece.

FIG. 8 is a cross-sectional view showing a main part cross section of the strobe device.

FIG. 9 is a perspective view showing a conventional strobe device.

[Explanation of symbols]

 Reference Signs List 17 Strobe light emitting part 23 Strobe device 36 Strobe discharge tube 37 Reflector 38 Diffusion plate 39 Reflector case 41 Trigger opening 42 Pressing part 47 Trigger coil 48 Trigger output terminal 50 Trigger terminal 57 Trigger contact piece 58 Trigger metal piece 59 Insulating coating 60 Connection terminal

Claims (6)

[Claims] A strobe discharge tube having a strobe discharge tube that emits light by application of a trigger voltage, a conductive reflector, and a reflector case in which these are incorporated;
A trigger coil for generating a trigger voltage; and a trigger contact piece for electrically connecting an output terminal of the trigger coil to the reflector. A strobe discharge tube is brought into contact with the reflector, and a trigger voltage is applied through the reflector. In the strobe device, the trigger contact piece is a conductive terminal in which a trigger terminal that is inserted into the reflector case and contacts the reflector and a connection terminal that is engaged with and connected to an output terminal of the trigger coil are integrally formed. A plate, and an insulating coating covering at least a portion of the conductive plate between the trigger terminal and the connection terminal where the conductive plate is disposed in close proximity to another component of the strobe circuit. Strobe device. 2. The strobe device according to claim 1, wherein the coating covers a portion of the conductive plate between the trigger terminal and the connection terminal. 3. The trigger contact piece according to claim 1, wherein the trigger terminal is inserted into the reflector case in one direction and assembled to a strobe light emitting unit. When the trigger terminal is inserted in one direction, the connection terminal is connected to the trigger coil. The strobe device according to claim 1, wherein the strobe device is shaped to engage with the output terminal. 4. The trigger terminal is configured to be elastically deformable, and the reflector case is configured such that a pressing portion that elastically deforms the inserted trigger terminal and presses a tip portion against an outer wall surface of the reflector to make contact therewith. The strobe device according to claim 1, wherein the strobe device is formed. 5. The strobe device according to claim 1, further comprising a stopper for preventing the trigger terminal from falling out of the strobe light emitting section. 6. The trigger terminal is adapted to be inserted from an opening formed in the reflector case, and the retaining means is formed integrally with the trigger terminal and stands up from the trigger terminal. When the trigger terminal is inserted into the opening, the stopper terminal abuts on the opening and is elastically deformed to allow the trigger terminal to be inserted. 6. The flash device according to claim 5, wherein the flash terminal abuts on an inner wall surface of the reflector case to prevent the trigger terminal from being removed from the flash light emitting unit.