JP2581928Y2 - camera - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an LCD (Liquid C) for displaying various information including various operation information of a camera.
The present invention relates to a camera having a mounting board on which a CPU (Central Processing Unit) for controlling the operation of each part of the camera such as an information display control on this LCD and a shutter mechanism is provided. LCD in a camera whose focal length of the optical system can be variably adjusted,
The present invention relates to an arrangement and connection structure of a CPU and a shutter mechanism on a mounting board.

[0002]

2. Description of the Related Art For example, in a compact camera,
In order to improve portability and handling, it is desired to reduce the size of the camera as a whole, and it is desired that components to be incorporated into the camera be compactly incorporated with a layout configuration that is as efficient as possible.

In particular, in this type of camera, a photographic lens barrel, a shutter mechanism, a film cartridge room, a film winding spool room, a finder device, an AE device, an AF device, a strobe device, a motor drive device, Since various components and components such as a display LCD for displaying various information are incorporated and arranged at appropriate locations inside the camera body, it is necessary to respond to the above-mentioned demand for miniaturization and compactness. I have.

In recent years, such cameras have become smaller and smaller.
In order to achieve compactness and high density, various measures have been taken regarding the arrangement and layout of various electronic components incorporated in the camera body. That is, conventionally, when various electronic components are incorporated into the camera body, the electronic parts are mounted on a plurality of mounting boards that are incorporated and arranged at various places in the camera body, and these boards are efficiently assembled at predetermined locations in the camera body. As a result, high-density mounting was achieved, and the camera body was reduced in size and size.

In such a camera, a display panel such as an LCD as a display means for displaying various information such as a display of the number of film shots and setting information of various shooting modes, an information display control by the LCD, etc. And the like, a CPU constituting a drive circuit unit that controls the operation of each unit of the camera. Conventionally, a drive circuit unit including the LCD and the CPU is mounted and arranged in a plane on a printed circuit board mounted on an upper end or the like in the camera body. I was

[0006]

However, as described above, when LCDs, CPUs, and the like are mounted and arranged on a mounting substrate in a planar manner, a planar mounting area of the mounting substrate must be secured. The size of the substrate is increased, which causes a problem that the size of the camera body incorporating the substrate is also increased.

In particular, the mounting substrate is disposed at the upper end portion in the camera body since information display by the LCD is generally performed at the upper end of the camera body. However, on the mounting board disposed on the upper end of such a camera body, there are provided a release button, a telephoto for zooming, a wide operation button, operation buttons for setting various modes of the camera, switches corresponding to a main switch of the camera, and the like. Since it is necessary to arrange the mechanical parts together, it is inevitable to increase the size of the substrate in the plane direction, and as a result, a problem arises in that the size of the camera cannot be reduced.

For this reason, in order to reduce the size of the camera while securing the mounting area of the mounting board described above, it is usual to divide the mounting board into a plurality of parts and divide them into several places in the camera body and arrange them. Is being done.

[0009] However, such a divisional mounting of the substrate complicates the internal structure of the camera, increases the number of parts, and increases the cost.

Further, in order to connect the substrates thus divided, it is necessary to use a lead wire or a flexible printed wiring board, which increases the number of parts and complicates the connection work. At the time of such connection or handling, there is a possibility that an accident such as poor connection may occur,
It is problematic in terms of assemblability and cost.

[0011] Further, when the number of boards is increased as described above, there is also a problem that the inspection at the time of assembling parts to each board, the handling at the time of assembling these boards into the camera body, and the assembling work become complicated. there were.

In particular, in the case of a compact camera, there is a demand that the entire camera be as small and compact as possible in terms of portability and handling. It is desired to make the whole body as efficient and compact as possible, and it is desired to take some measures which can eliminate the above-mentioned problems.

Further, as described above, an LCD generally used as a display panel requires a large number of patterns for connection to a mounting substrate, especially a CPU mounted on the substrate and constituting a drive circuit section. And, when these are provided on the divided substrates, it is necessary to use a wide printed circuit board or the like as a flexible printed wiring board for connection, which is complicated and causes a large size. These points must also be considered.

Further, when the connection distance for connecting the LCD to the CPU becomes longer, a problem that the signal transmission system is susceptible to electric noise or the like occurs, and it is necessary to prevent this. ing.

On the other hand, the C mounted on the mounting board described above
The PU is also connected to wiring connection means from a shutter mechanism such as a lens shutter provided near the taking lens optical system, for example, a flexible printed wiring board. However, the number of connection patterns is large, and connection work is complicated, It is desired to solve such a problem. Here, the flexible printed wiring board from such a shutter mechanism is, for example, in a camera in which the focal length of a photographic lens optical system can be variably adjusted, the movement is transmitted along with the extension and retraction operations of the optical system. It is necessary to securely fix the connection portion at the tip to the substrate, and such a point must be considered.

The present invention has been made in view of such circumstances, and makes effective use of a mounting area on a single mounting substrate, and displays a display panel such as an LCD or a CP.
U and further improve the assemblability of all circuit components including the wiring connection means such as a flexible printed wiring board from the shutter mechanism, reduce the size and size of the camera itself, further reduce the cost, and reduce noise and the like. The aim is to obtain a camera that can also prevent the effects.

[0017]

In order to meet such a demand, a camera according to the present invention is provided with a display panel for displaying various operation information by covering an upper part of a drive control CPU mounted on a mounting board. Are mounted in a state where they are supported by a support frame placed on a mounting board, and the display panel press-contacts are provided on the board surface of the mounting board at positions opposing each other across the CPU mounted thereon. A connecting portion and a press-connecting portion for a shutter mechanism are provided, and a connecting portion of the display panel is pressed against the press-connecting portion for the display panel to electrically connect both conductive portions. The connection portion is brought into pressure contact with the pressure connection portion for the shutter mechanism to electrically connect both conductive portions.

[0018]

According to the present invention, an LCD type display panel and wiring connection means from a shutter mechanism are connected to the respective press-contact connection portions provided on both sides of the CPU on the mounting board to minimize the necessity. Connect both at the connection distance, and CPU
From the LCD and the shutter mechanism directly, and by minimizing the mounting area, it is possible to mount other circuit components, etc., and it is possible to integrate mounting on one board. What you get.

Further, according to the present invention, a display panel having a required occupied area and a drive control CPU having a relatively large occupied area in a drive control circuit are mounted on a predetermined position on a mounting board surface. It is arranged with a two-story structure superimposed on the bottom, making it possible to effectively use the area that can be mounted on the mounting board and mounting various circuit components required for the camera with high layout efficiency with the required layout. Arrangements can be made.

[0020]

1 to 7 show an embodiment of a camera according to the present invention. In these figures, first, a schematic configuration of a camera 1 to which the present invention is applied is shown in FIGS. Further, a brief description will be given below with reference to FIGS.

That is, reference numeral 2 in the drawing denotes a camera body of a so-called zoom compact camera, and 3 denotes a lens barrel which holds a zoom-type photographing lens system 3a and protrudes from the front center of the camera body 2. It is. 6 and 7, the rotation of the lens barrel 3 causes the zoom type photographing lens system 3a to move in the optical axis direction, and the focal length can be variably adjusted. Here, as apparent from FIG. 6 and the like, various mechanical components and the like necessary for the camera are arranged at appropriate positions in the camera body 2, the details of which are well known, and Description is omitted.

In FIG. 4, reference numerals 4A and 4B denote AF devices provided corresponding to AF distance measuring windows 4a and 4b (see FIG. 5) provided above the lens barrel 2 on the front surface of the camera body 2. AF lens in the light-emission and light-receiving distance measurement units that constitute
Is a finder device provided corresponding to the finder window 5a (see FIG. 5), 6 is a strobe light emitting portion as an electronic flash device provided corresponding to the strobe window (see FIG. 5), and 7 is the AE device. AE lens which constitutes a photometric unit provided corresponding to the photometric window 7a (see FIG. 5) for
These devices and their respective windows are arranged side by side at the upper end on the front side of the camera body 2. Reference numeral 8 in FIG. 4 denotes a device block unit provided with the above-described distance measuring unit for the AF device (including the AF lenses 4A and 4B) and the photometric unit for the AE device (including the AE lens 7). .

In FIG. 5, reference numeral 10 denotes an operation panel provided at the center of the upper surface of the camera body 2, and this operation panel 10 is used to display various camera operations, function information such as photographing information, and the like. LCD display window 11 and this LC
A plurality (two in the present embodiment) arranged in a horizontal line on the upper surface of the camera body 2 which is adjacent along the side edge portion (the left edge portion with the camera body 2 held) of the D display window 11. And an operation button section using the operation buttons 12 and 12. These operation buttons 12 are pressed as necessary to perform various mode settings and functional operation control necessary for camera operation.

Further, reference numerals 13 and 13 in FIG. 5 denote zoom switch buttons for variably adjusting the focal length of the photographing lens system 3a, one of which is a tele (telephoto) side and the other is a wide (wide angle) side switch. Button. In FIG. 5, reference numeral 14 denotes an operation button for a main switch of the camera 1 for turning on and off a drive control system of the entire camera.

In FIG. 5, reference numeral 15 denotes a release button for a release switch. The structure of the camera 1 other than those described above is well known. For example, in FIG. 4, reference numerals 16 and 17 denote a film cartridge and a film winding unit, and reference numeral 18 denotes a condenser, but other detailed descriptions are omitted.

Further, in the camera 1 having the above-described configuration, as shown in FIGS. 1, 4, and 6 and 7, a single mounting board 20 of a printed circuit board is provided inside the camera body 2. The camera body 2 is disposed in a substantially horizontal state along the inner wall surface on the upper end side.

On the lower surface side of the mounting board 20,
A device block unit 8 provided with a distance measuring unit for the AF device and a photometric unit for the AE device is additionally provided, and a drive control CPU 2 of each unit of the camera 1 is provided on the upper surface side.
1. LC as display panel for displaying various operation information
D22 is implemented.

Further, on the mounting substrate 20, as is apparent from FIG. 2, a pattern 23 for the zoom switches 13, 13 for adjusting the focal length and a pattern 24 (24a, 24b) for the release switch 15. And a sliding pattern 25 for the main switch 14 of the camera. In addition, on the mounting substrate 20, on the side of the LCD 22 on the upper surface thereof, there are also formed switch patterns 26 for the mode setting operation buttons 12, 12. Here, these switch patterns 23, 24,
The reference numerals 25 and 26 are formed on the same substrate surface as the mounting positions of the CPU 21 and the LCD 22.

The patterns 26 and 23 of the switches 12, 13 and the like described above are structured such that the pattern A enters the pattern B as shown in FIG. 3, for example, and the button portion of each switch has When the conductive part has patterns A and B
Is short-circuited to perform a switching operation. Further, on the mounting board 20 described above, mounting components (not shown) other than those described above are also mounted.
Detailed structure is omitted.

Now, in the above structure, the LCD 22
As shown in FIG. 1, the LCD is provided on the mounting substrate 20 via an LCD holder 27 as a supporting frame so as to be supported at a predetermined distance from the substrate surface. Drive control CPU below LCD 22
21 is implemented by a two-story structure. That is,
The LCD 22 serving as a display panel is provided so as to cover an upper part of the CPU 21 mounted on the mounting substrate 20 and supported by an LCD holder 27 mounted on the substrate 20.

A display panel (LCD) having a pattern in which a large number of conductive parts are arranged in parallel on both sides of the mounting surface of the mounting substrate 20 with the CPU 21 mounted thereon interposed therebetween. A press-connecting portion 30 and a press-connecting portion 31 for a shutter mechanism having a large number of conductive portions are provided.

Then, the connection portion of the LCD 22 is connected to this LC
A flexible printed wiring as a wiring connection means from a shutter mechanism 40 provided near the photographing lens system 3a by pressing the D press-connecting portion 30 through a zebra connector 29 to electrically connect both conductive portions. The connecting portion of the plate 41 is pressed against the press-connecting connection portion 31 for the shutter mechanism to electrically connect both conductive portions.

The CPU 21 and L on the mounting board 20
As is apparent from FIG. 1, the two-story portion with the CD 22 is positioned at a predetermined distance from the surface of the board on which the CPU 21 is mounted while being positioned by the LCD holder 27 having a frame shape provided on the board 20. It is provided floating. The LCD 22 and the LCD holder 2
7 is pressed and fixed on the substrate 20 by the presser 28,
As a result, the contact of the LCD 22 is electrically connected to the pattern portion of the press-connecting portion 30 on the substrate 20 via the zebra connector 29.

Also, as is apparent from FIG. 1 and the like, the shutter mechanism 40 near the photographing lens system 3a has a pattern portion serving as a shutter mechanism press-connecting portion 31 formed on one side of the CPU 21 on the mounting board 20. The connection portion of the flexible printed wiring board 41 is drawn around the camera body 2 and faces there, and is fixed to a side edge portion of the substrate 20 by a press-contact member 42 having a clip shape. Then, the elastic member 43 is pressed against the connection portion of the flexible printed wiring board 41 by the pressure contact member 42 and pressed against the board surface, whereby the flexible printed wiring board 41 is pressed.
It is possible to electrically connect the conductive portion of the connecting portion to the conductive portion of the press-connecting portion 31 of the substrate 20. In addition,
The function of the press contact member 42 is provided by the LCD holder 2.
7, and the pressure contact member 42 may be omitted.

In particular, according to such a configuration, the LCD 22 and the flexible printed wiring board 41 from the shutter mechanism 40 are connected to the respective press-contact connecting portions 30 and 31 provided on both sides of the CPU 21 on the mounting board 20. By connecting these with the minimum necessary connection distance, CP
The signal from U21 can be directly output to the LCD 22 and the shutter mechanism 40, and the mounting area can be minimized, so that other circuit components can be mounted. Can be made possible.

In particular, such an advantage is shown in FIGS.
As is apparent from FIG. 7, the variable focal-length camera 1 in which the focal length of the photographing lens system 3a is variably adjustable, the shutter mechanism 40 is provided near the photographing lens system 3a, and the connection to the CPU 21 is flexible. It is highly effective when used with a wiring connection means such as a printed wiring board 41. FIG. 6 shows a case where the lens barrel 3 is moved in or out on the wide side (wide angle side), and FIG.

Further, according to the above-described configuration, the LCD 22 as a display panel having a required occupied area and the drive control CPU 21 having a relatively large occupied area among the drive control circuits are mounted on the mounting board 20. It is arranged in a two-story structure that is superimposed on the lower part at a predetermined location on the surface, thereby minimizing the mounting area to effectively use the area that can be mounted on the mounting board 20.

With such a configuration, various circuit components and the like necessary for the camera 1 such as the switches 12 to 15 described above are mounted on one mounting board 20.
With the required layout, it can be mounted or arranged with high mounting efficiency, and it does not cause connection accidents or handling accidents as in the case where it is divided and mounted on multiple boards as in the past, and assembly This is advantageous in terms of workability, and further reduces the cost of the camera 1 as a whole.

The present invention is not limited to the structure of the embodiment described above.
It is needless to say that the shape, structure, etc. of each part including the mounting board 20 formed by the printed circuit board on which is mounted can be appropriately modified and changed. For example, L for the circuit board 20
It goes without saying that various modifications can be considered as combinations or connection structures of the display panel such as the CD 22 and the drive control unit including the CPU 21.

Further, the present invention is not limited to the variable focus type camera 1 as in the above-described embodiment, but may be applied to a single mounting board 20.
On the other hand, if the LCD 22 and the CPU 21 are mounted and the wiring connection means such as the flexible printed wiring board 41 from the shutter mechanism 40 needs to be connected, the effect can be obtained by applying the present invention. .

[0041]

As described above, according to the camera of the present invention, the display panel for displaying various operation information is mounted on the mounting board so as to cover the upper part of the drive control CPU mounted on the mounting board. Provided at a position supported by the support frame placed on the mounting board, and at positions opposing each other on both sides of the CPU mounted on the board surface of the mounting board,
A display panel press-connecting portion and a shutter mechanism press-connecting portion are provided, and the connection portion of the display panel is press-contacted with a corresponding press-connecting portion to be electrically connected, and the connection portion of the wiring connecting means from the shutter mechanism is connected. Since it is electrically connected by press-contacting the corresponding press-connecting portion, the following practically superior effects can be achieved despite the simple structure.

That is, according to the present invention, the CPU on the mounting board, the LCD display panel, and the wiring connection means from the shutter mechanism are connected to each other with the minimum necessary connection distance, and C
The signal from the PU can be directly output to the LCD and the shutter mechanism, which enables efficient mounting and placement on the mounting board, compactness and cost reduction of the camera, and prevention of the effects of noise and the like. Besides, by minimizing the mounting area, it is possible to mount other circuit components and the like, and it is possible to collectively mount them on one board.

In particular, such an advantage is provided by a variable focus camera in which the focal length of the photographing lens optical system is variably adjustable, wherein a shutter mechanism is provided near the photographing lens optical system, and the This is very effective when the connection is made by a wiring connection means such as a flexible printed wiring board.

Further, according to the present invention, a display panel having a required occupied area and a drive control CPU having a relatively large occupied area in a drive control circuit are mounted on a predetermined position on a mounting board surface. It is arranged with a two-story structure superimposed on the bottom, making it possible to effectively use the area that can be mounted on the mounting board and mounting various circuit components required for the camera with high layout efficiency with the required layout. Arrangements can be made.

According to the present invention, various circuit components necessary for camera drive control are mounted on one mounting board.
Since it can be placed and the mounting area can be used effectively, there is no connection accident or handling accident as in the case of mounting on multiple boards as in the past, which is advantageous in terms of workability. Further, there is an advantage that the overall cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an enlarged cross-sectional view showing an embodiment of a camera according to the present invention, viewed from the side, showing a main part in an enlarged manner.

FIG. 2 is a schematic plan view of a mounting board used in the camera according to the present invention.

FIG. 3 is a detailed view of a switch pattern formed on the mounting board of FIG. 2;

FIG. 4 is a front cross-sectional view for explaining a schematic configuration of the entire camera to which the present invention is applied;

FIG. 5 is a schematic perspective view illustrating the appearance of a camera to which the present invention is applied.

FIG. 6 shows a variable focus camera to which the present invention is applied;
FIG. 4 is a side sectional view showing a case where the taking lens optical system is on a wide side (wide angle side).

7 is a side sectional view showing a case where the taking lens optical system of the variable focus camera shown in FIG. 6 is on the telephoto side (telephoto side).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Camera 2 Camera main body 8 Device block unit 10 Operation panel unit 11 LCD display window 12 Operation button 13 Zoom switch button 14 Main switch operation button 15 Release switch for release switch 20 Mounting board 21 Drive control CPU 22 Display LCD 23 Pattern for Zoom Switch 24 Pattern for Release Switch 25 Pattern for Main Switch 26 Pattern for Mode Setting Switch 27 LCD Holder (Supporting Frame) 28 Holder 29 Zebra Connector 30 Press-fitting Connection for Display Panel 31 Press-fitting Connection for Shutter Mechanism 40 Shutter Mechanism 41 Flexible printed wiring board 42 Pressure contact member 43 Elastic member

Claims (1)

(57) [Scope of request for utility model registration] 1. A drive control CPU of each part of a camera and a display panel for displaying various operation information are mounted on a mounting board provided in a camera body, and a photographing lens optical system is mounted on a part of the mounting board. In a camera in which a wiring connection means for a shutter mechanism provided nearby is connected by pressure contact, the display panel is mounted on the mounting board so as to cover above a CPU mounted on the mounting board. A display panel press-connecting portion and a shutter mechanism press-connecting portion provided on the board surface of the mounting board at opposite positions on both sides of the CPU mounted on the mounting board; Is pressed into contact with the press-connecting connection portion for display panel to electrically connect both conductive portions, and the connecting portion of the wiring connection means from the shutter mechanism is
A camera characterized in that both of the conductive portions are electrically connected to each other by being pressed against the press-connecting portion for the shutter mechanism.