JP2838283B2 - camera - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a camera with a built-in strobe.

[Related Art] Some cameras have a built-in strobe, and the flash tube is covered with a reflector having excellent light distribution characteristics. In general, the strobe is fixed to a predetermined position by attaching the reflector to a light emitting frame and fixing the light emitting frame to, for example, a circuit board provided on an upper portion of a camera body.

[Problems to be Solved by the Invention] By the way, when a circuit board is fixed on the upper part of the camera body and a reflector attached to the light emitting frame is arranged on the circuit board, the circuit board is overlaid on the camera body and the light emitting frame is further mounted. The mounting structure is stacked, and this mounting structure is a major obstacle in reducing the size of the camera.

The present invention has been made in view of such a point, and reliably holds a strobe reflector using a strobe circuit board.
It is an object of the present invention to provide a camera that can be downsized.

[Means for Solving the Problems] In order to solve the problems and achieve the object, the invention is configured as follows.

According to the first aspect of the present invention, there is provided a camera having a built-in strobe, comprising a reflector of the strobe and a strobe circuit board for holding the reflector, and the strobe circuit board is located behind the reflector. The upper end of the reflector is held by a cover for covering the camera body and the strobe circuit board. ].

According to the first aspect of the present invention, the strobe circuit board for holding the reflector of the strobe is mounted on the upper surface of the camera body, and the upper end of the reflector is held by the cover for covering the camera body and the strobe circuit board. By using a strobe circuit board, the reflector can be securely held, and there is no need for a conventional light-emitting frame for attaching the reflector to the main body. Become.

According to a second aspect of the present invention, the camera according to the first aspect, wherein a lower end of the reflector is fixed to a camera body. ].

According to the second aspect of the invention, the lower end of the reflector can be directly and reliably fixed to the camera body.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view of a camera to which the present invention is applied, FIG.
The figure is a front view with the front cover removed, and FIG. 3 is the view in FIG.
FIG. 4 is a sectional view taken along the line IV-IV of FIG.
The figure is a sectional view taken along the line VV in FIG. 2, and FIG. 6 is an exploded perspective view of a part of the camera.

This camera comprises a main body 1, a cover 2, a decorative panel 3, and a back cover 4, which are each formed of a synthetic resin. The decorative panel 3 is engaged with the front side of the front cover 2, and the front cover 2 is engaged so as to cover the main body 1 and is screwed. The decorative panel 3 is transferred to a transparent body and transferred to a window 6 of a strobe 5, a window 8 of an objective lens of a viewfinder 7, a window 10 of a projection AF lens 9, a window 12 of a light receiving AF lens 11, and an AE. The window 14 of the light receiving element 13 is formed.
A reflection film 6a is formed on the window 6 of the strobe 5 to prevent the window 6 formed by the transfer of light from the strobe 5 from burning, and this window 6 also serves as a conventional light emitting frame. .

Further, the decorative panel 3 has a projection 15 near the lower portion of the window portion 6 of the strobe to prevent a finger from hanging on the window portion 6 and a finger near the lower portion of the lens barrel 17 so as not to be hooked on the lens barrel 17. Projection
16 are integrally formed.

The back cover 4 and the battery cover 18 are integrally attached to a main body mounting body 19 via a hinge shaft 20, and the main body mounting body 19 is engaged with the main body 1 and further fixed with screws. This back cover 4
The battery lid 18 is previously assembled to the main body mounting body 19 via the hinge shaft 20 to form a unit, which is then assembled to the main body 1.

In the main body 1, a patrone room 22 and a winding room 23 are sandwiched by an image frame 21.
A patrone 24 is accommodated in the patrone chamber 22, and the exposed photographic film F is stored in the take-up chamber 23.
Is wound on a reel 25 provided at The film is wound by an automatic winding system using a built-in motor 26. The winding unit 27 is driven to wind the photographic film F onto the reel 25. After the back cover 4 is closed, the automatic loading is started by operating the release button. It is a method. When the photographing of the last frame is completed, the built-in motor 26 drives the rewinding gear system 28 to rewind the film, and when the rewinding is completed, the film is automatically stopped.

A main body mounting body 19 mounted on the main body 1 partitions a winding chamber 23 and a battery chamber 29, and the battery chamber 29 has a lithium battery.
30 is stored, and the user can replace the battery cover 18 by opening and closing it. Further, a button battery 31 functioning as an auto date function and as a backup power source for the main power source is stored in the back cover 4.

A crimping plate 32 is provided inside the back cover 4. The crimping plate 32 forms a tunnel gap between the backing cover 4 and a film rail 33 formed in the vicinity of the image frame 21 of the main body 1. I try to run.

An image frame 21 is provided between the winding chamber 23 of the main body 1 and the patrone chamber 22.
The front base plate 34 of the lens barrel unit is provided to face the camera. The lens barrel frame 35 is integrally combined with the lens barrel 17 having the photographing lens 38, and by driving the motor 39, the drive shaft 36 is rotated via the gear mechanism 40 to move the photographing lens 38 in the optical axis direction. Move,
When retracted, it collapses. Shooting lens
38 is composed of four elements in four groups, is attached to the lens barrel 35 via supports 41 and 42, and the photographing lens 38 is a bite-in type in which a shutter 43 is disposed between lenses. The three lenses 38a, 38b, 38c are formed of glass, and the one lens 38d on the photographic film side is formed of aspherical plastic.

The front surface of the taking lens 38 is covered with a lens barrier 44. The lens barrier 44 is composed of two divided barriers 44a and 44b, and is opened and closed in one direction in conjunction with the movement of the taking lens 38.

A rewind gear system 28 is arranged above the image frame 21 of the main body 1,
Furthermore, the AF provided on the front base plate 34 at the top of the picture frame 21
Two mounting portions 45 and 46 on the light emitting side and the light receiving side of the lens, and a finder 7 formed by a concave portion between the mounting portions 45 and 46.
Mounting part 47 is located.

In the upper part of the winding chamber 23, as shown in FIGS. 2 and 4,
A step X1 with respect to the front ground plate 34 is formed in the winding axis direction, and a rotating board 48 is arranged in the step X1 and is fixedly fastened with a screw 506a. A primary circuit element 49, a switch element 50a of a release button 50, a switch element 51a of a power button 51, a switch element 52a of a close-up button 52, and the like are provided.
The space above 3 is used effectively. Further, a strobe capacitor 53 is connected to the circuit board 48.

As shown in FIG. 4, the release button 50, the power button 51, and the close-up button 52 are each formed of a resin. The exposed side is exposed to the resin without vapor deposition. For this reason, when a button is operated with a finger and the button approaches the switch element, the occurrence of electrostatic discharge between the two is prevented. Therefore, a high voltage is not applied to the input terminal of the microcomputer due to the electrostatic charge, and the malfunction can be prevented.

As shown in FIGS. 2 and 5, a step X2 with respect to the front base plate 34 is formed in the upper part of the patrone chamber 22 in the winding axis direction, and the circuit boards 54a and 54b and the strobe 5 are provided in the step X2. Is arranged.

The flash tube 501 of the strobe 5 is covered with a reflecting umbrella 502. This reflector umbrella 502 has a square opening on the front side, and the entire lower end is bent downward to form a mounting portion 502a, which is fixed to the upper part of the cartridge chamber 22 with a screw 503. Is done. The mounting portion 502a of the reflector umbrella 502 is configured such that the entire lower end portion is bent so as to improve the strength and prevent twisting or the like. The reflecting umbrella 502 is mounted by inserting both ends of a flash tube 501 into notches 502b formed on both sides thereof, and the flash tube 501 is inserted through a non-conductive elastic band 504, At the inner surface of the reflector umbrella 502 and is securely held. Since the flash tube 501 is in close contact with the reflector 502, when a trigger voltage is applied to the reflector 502, the flash tube 501 is excited and discharged.

The lead wire 505 connected to the flash tube 501 is connected to the circuit board 54a, and this circuit board 54a is
The circuit board 54b disposed below the circuit board 54a is fastened and fixed directly to the upper part of the patrone chamber 22 by screws 507. Circuit board
A protrusion 54c is formed on the front side of 54a, the protrusion 54c is engaged with a notch 504a formed in the elastic band 504 of the flash tube 501, and the circuit board 54a holds the reflector umbrella 502. The circuit board 54a functions as a holding member.

The lower end 502c of the reflector umbrella 502 protrudes from the upper end 502d, and the decorative panel 3 engaged with the front cover 2 is covered near the both ends, and the upper end 5c of the reflector umbrella 502 is further covered.
Since 02d does not protrude from lower end 502c, upper end 502d is held by decorative panel 3 and front cover 2.

As described above, since the reflector umbrella 502 is directly fixed to the main body 1, the rear portion thereof is held by the circuit board 54 a, and the upper end portion 502 d is held by the decorative panel 3 and the front cover 2. The overall height of the camera is lower than that of the method of mounting the reflecting umbrella used, and the camera can be securely held with a simple structure.

Further, a window 6 of the strobe 5 is formed on the decorative panel by the print layer 3b printed on the transparent body 3a, and a projection 3c is formed on a portion of the decorative panel 3 facing the lower end 502c of the reflective umbrella 502. Have been. This projection 3c and reflective umbrella 50
Although the lower end portion 502c of the second portion is located on the front side of the upper end portion 502d, they are almost close to each other, so that the inside of the camera cannot be seen through the window portion 6.

A secondary circuit element 55 of a light emitting system of a strobe circuit is connected to the circuit boards 54a and 54b, and a primary circuit board 48 divided and arranged on the secondary side of the strobe circuit passes through an upper portion of the front ground plate 34. It is connected by a lead wire 56, and the space above the patrone room 22 is effectively used. Also, the circuit boards 54a, 54
b and the circuit board 48, and by connecting the strobe capacitor 53 directly to the circuit board 48, the connection is ensured, the connection work is facilitated, and the voltage drop caused by the connection of the strobe capacitor 53 by the lead wire is reduced. Avoided.

Further, a step X3 is formed at a lower portion in the winding axis direction by the winding chamber 23 and the patrone chamber 22, and the step X3
A motor 39 is arranged at a position below the image frame 21 in the X3 and on the side of the patrone chamber 22 so that its rotation axis 39a is parallel to the optical axis. On the winding chamber 23 side, the flexible printed wiring board 57 is bent and a part 57a and 57b thereof are disposed in two stages. A circuit element 58 is connected to the flexible printed wiring board 57, and a main control circuit is formed. Are located.
In this manner, the space formed by the step X3 between the winding chamber 23 and the patrone chamber 22 is effectively used, and the motor 39 for driving the lens barrel 17, the lens barrel drive mechanism and the control unit are arranged, There is no need to secure a space for arranging them.

A first connector portion 60 is formed between the outer peripheral portion of the winding chamber 23 and the strobe condenser 53, and a second connector portion 61 is formed between the outer peripheral portion of the winding chamber 23 and the front base plate 34. Room
It makes effective use of the space that can be made around the outer circumference of 23. The flexible printed wiring board 57 is the first connector section 60 and the back cover 4
The end 63a of the flexible printed circuit board 63 connected to the back cover side circuit 62 and the screw 65 via the crimping fitting 64 are fixed,
The back cover circuit 62 constitutes a data imprinting circuit and a display circuit.

In addition, a flexible printed wiring board 57 and a front flexible printed wiring board 66 are fixed to the second connector portion 61 with screws 68 via crimping fittings 67. Like the flexible printed wiring board 63, no soldering is used.
It is easily and securely connected to the front flexible printed wiring board 66.

The flexible printed wiring board 66 is a side wall 23 of the winding chamber 23.
It is arranged between a and the front base plate 34 that supports the lens barrel 17 on the image frame 21 side. In order to ensure that the film is wound on the winding shaft, a part of the side wall 23a forming the winding chamber 23 is projected toward the image frame 21 so as to be inserted into the winding chamber 23 as shown in FIG. A mounting space 70 for the film pressing roller 69 is formed, and the film pressing roller 69 is mounted in the mounting space 70. Due to the formation of the mounting space 70, as shown in FIG. 2, a part of the side wall 23a of the winding chamber 23 projects toward the image frame 21, and the front base plate 34 and the side wall of the winding chamber 23 are formed above and below the projecting portion 23b. Space 71 between 23a
Is formed. A circuit portion 66a for guiding information to the connector 61 side formed on the flexible printed wiring board 66 includes:
A circuit component such as a circuit element 72 is connected to a circuit portion 66b located in the space 71, disposed in a gap between the projecting portion 23b of the winding chamber 23 and the front base plate 34.

As described above, the projecting portion 23b of the winding chamber 23 allows the winding chamber 23
A space 71 formed between the side portion 23b of the
Since the flexible printed wiring board 66 is arranged and the circuit element 72 is connected using the above, it is not necessary to secure a special space for arranging circuit components.

The flexible printed wiring board 57 covers the outer peripheral portion of the winding chamber 23, is further bent at a lower portion thereof, passes through a lower portion of the motor 39, and is disposed on the opposite side of the lens barrel 17 so as to cover the outside of the cartridge chamber 22. The circuit element 59 is connected, and is further soldered to the circuit board 48 on the winding chamber 23 side.

[Effects of the Invention] As described above, according to the first aspect of the present invention, a strobe circuit board for holding a reflector of a strobe is mounted on an upper surface of a camera body, and an upper end of the reflector covers the camera body and a strobe circuit. Since the reflector is held by the board, the reflector is securely held by using a strobe circuit board, and the conventional light emitting frame for attaching the reflector to the main body is not required, and the overall height of the camera is reduced accordingly. Can be smaller.

According to the second aspect of the present invention, the lower end of the reflector can be directly and securely fixed to the camera body.

[Brief description of the drawings]

FIG. 1 is a front view of a camera to which the present invention is applied, FIG. 2 is a front view with a front cover removed, and FIG. 3 is II in FIG.
FIG. 4 is a sectional view taken along line IV-IV of FIG. 2, FIG. 5 is a sectional view taken along line VV of FIG. 2, and FIG. 6 is an exploded perspective view of a part of the camera. In the figure, reference numeral 1 denotes a main body, 2 denotes a front cover, 3 denotes a decorative panel, 5
Is a flash, 501 is a flash tube, 502 is a reflector, 54a and 54b are circuit boards, 21 is a picture frame, 22 is a patrone room, and 23 is a winding room.

Claims (2)

(57) [Claims] 1. A camera with a built-in strobe, comprising: a reflector for the strobe; and a strobe circuit board for holding the reflector, wherein the strobe circuit board is positioned behind the reflector. Attached to the top,
A camera wherein an upper end of the reflector is held by a cover for covering a camera body and the strobe circuit board. 2. The camera according to claim 1, wherein a lower end of the reflector is fixed to the camera body.