JP2000111985A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a camera by reducing thickness at a part where a member opposed to a connection part exists. SOLUTION: A main body part 1 forming a cartridge chamber 2 has a semicircular wall surface and a mirror box 3 is formed to face one part of the wall surface. A package board 4 is disposed in space between the chamber 2 and the mirror box 3 and plural flexible printed boards 8a to 8e are connected to both surfaces of the board 4. The printed boards 8d and 8e connected to the surfaces of the board 4 opposed to the mirror box 3 out of the printed boards 8a to 8e are connected by soldering by the use of soldering parts 9d and 9e, and other printed boards are connected through connectors 7a to 7c. Thus, the mounting space of the board and the like is reduced and the camera is miniaturized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a camera, and more particularly, to a camera having a mounting board provided in a narrow space and a plurality of boards which are electrically connected to at least one surface of the mounting board.

[0002]

2. Description of the Related Art For example, a single-lens reflex camera (single-lens reflex camera) has an automatic exposure, an auto focus, an automatic film rewinding / automatic rewinding, a plurality of photographing modes, and the like. The control circuit has a complicated configuration. For this reason, printed circuit boards (mounting boards) on which electronic circuits are mounted consist of multiple sheets,
They are arranged in a distributed manner by effectively utilizing the narrow internal space, and flexible printed circuit boards are used for interconnection. Also, in consideration of mounting in a space having irregularities, a flexible printed board is often used for the circuit board itself.

[0003] Specifically, a mounting board is provided along a structure having a flat portion in a camera, and a flexible printed board or the like is used for electrical connection between the mounting board and electric components provided in the camera. And a connector provided on a mounting board is used for the connection.

FIG. 11 is a cross-sectional view showing a main part of a conventional camera. The main body 1 has a flat portion 2a on a part of an outer wall forming the patrone chamber 2, and a mounting board 4 is provided between the flat portion 2a and the side wall flat portion 3a of the mirror box 3 substantially parallel to the flat portion 2a. It is disposed so as to be substantially parallel to the plane portion 3a. Further, electrical connectors 5a, 5b, 5c and 5d are provided on the mounting board 4, and flexible printed boards 6a, 6b, 6c and 6d are connected to the connectors provided on the mounting board 4. Have been. Reference numeral 22 denotes a film cartridge loaded in the patrone chamber 2, and reference numeral 23 denotes a focal plane shutter that is disposed immediately before a film surface pulled out from the film cartridge 22. Mirror of mirror box 3 and focal plane shutter 23
Control, such as film drive, film transport, distance measurement, photometry, and control of the display device, is performed by a control circuit (not shown).

FIG. 12 shows the mounting substrate 4 shown in FIG.
The structure seen from the direction is shown. In FIG. 12, electrical connectors 5c and 5d are arranged on the mounting board 4. The flexible printed circuit boards 6c and 6d connected to these connectors are laid in a state of being overlapped from substantially the same direction, and are connected to the electrical connectors 5c and 5d. The connection place between the electrical connection connectors 5c and 5d and the flexible printed circuit boards 6c and 6d is set at a remote position.

As described above, by making electrical connection using the flexible printed circuit board, it is not necessary to individually make connection using lead wires.

[0007]

However, in the above-mentioned prior art, the mounting board 4 and the electrical connectors 5a to 5d are connected between the outer wall flat portion 2a of the patrone chamber 2 and the side wall flat portion 3a of the mirror box 3. Is required as a mounting space, and the electrical connection connectors 5a to 5
Flexible printed circuit boards 6a to 6d connected to 5d
In order to be able to dispose, a large mounting space 24 as shown by a dotted line in FIG. 11 is required. As a result, there is a problem that the size of the camera is increased.

Further, as in a flexible printed circuit board 5d shown in FIG. 11, when considering the bending shape of the flexible printed circuit board, two electrical connection connectors 5c,
It is necessary to secure an area including the space between 5d as a mounting space for connecting the flexible printed circuit boards 6c and 6d, and as a result, there is a problem that the size of the camera is increased.

Further, as shown in FIG. 12, in a structure in which two flexible printed boards 6c and 6d are overlapped from the same direction and connected to the electrical connectors 5c and 5d, the flexible printed board connected to the near side is provided. It is necessary to ensure a sufficient space between the electrical connectors 5c and 5d in order to enable the arrangement of the electrical connectors 5c and 5d.

The present invention has been made in view of the above problems, and has as its object to provide a camera that can be reduced in size.

[0011]

According to a first aspect of the present invention, there is provided a dark box having a flat portion on an outer wall, and a dark box portion disposed close to the flat portion. In a camera comprising a mounting board and a connection board electrically connected to the surface of the mounting board on the side of the dark box, the connection board is mounted by soldering or by connecting means other than a connector. A camera is connected to a substrate.

According to this configuration, when connecting the mounting board and the connection board through the connection board through the connection board in the gap between the mounting board and the dark box where the gap between the connection sections is narrow, the thickness of the connection section is changed instead of the conventional connector connection. Soldering or equivalent connection means that can reduce the size of the connection. As a result, the mounting space of the mounting substrate and the connection substrate can be reduced with a simple and inexpensive configuration, and thus the camera can be downsized.

According to a second aspect of the present invention, there is provided a dark box portion having a flat portion on an outer wall, a gap between the dark box portion and the flat portion having a different surface shape depending on a location, and In a camera comprising: a body-side member disposed in proximity to a plane portion; a mounting substrate disposed along the plane portion; and a plurality of flexible substrates electrically connected to the mounting substrate. The flexible substrate connected to the side of the mounting substrate facing the main body side member performs connection at a place where the distance between the main body side member and the main body side member is small by soldering or connection means other than a connector, A camera is characterized in that connection at a place with a wide interval is performed using a connector.

According to this configuration, when the flexible board is connected to the side of the mounting board facing the main body side member, soldering (or soldering) that can reduce the thickness of the connection portion in a place where the distance from the main body side member is small is provided. A connection means other than a connector) is used, and in a place where the distance from the main body side member is large, there is a margin in the thickness of the connection portion, so that the connection is performed using the connector. As a result, optimal connection processing can be performed while reducing the mounting space, the number of connectors used can be reduced, and the cost of the camera can be reduced.

In a specific configuration for realizing the object of the invention according to the present application, as described in claim 3, the flexible substrates connected by using a connector are the same in a state where a plurality of flexible substrates are stacked. The camera is characterized in that, when the connector is guided from the direction onto the mounting board, the connection port of the connector on the upper side is reversed with respect to the connection port of the connector of another flexible board.

According to this structure, when a plurality of flexible boards are connected together by a connector, and are connected to the mounting board from the same direction in a stacked state, the upper flexible board is connected. The connection direction in the portion is reversed with respect to the lower flexible substrate, and the direction of the connection portion is opposed. As a result, the layout of the connector section is not complicated, and the connection section can be prevented from becoming thick. Therefore, the mounting space is reduced, and the camera can be downsized.

A specific configuration for realizing the object of the invention according to the present application is that, as described in claim 4, the flexible substrate with the connection port of the connector turned upside down has a U-shaped connector near the connector. The camera is characterized in that it is bent in a letter shape or is folded in two.

According to this configuration, the upper flexible substrate is bent in a U-shape or folded in the vicinity of the connector, thereby preventing the flexible substrate from increasing in thickness. Therefore, the size of the camera can be reduced without increasing the mounting space, and without complicating the layout of the connector.

A specific configuration for realizing the object of the invention according to the present application is as follows.
The connection port is of a horizontal type provided on a horizontal side of the mounting board.

According to this configuration, the connection port of the connector is
Since the flexible substrate to be connected faces the introduction direction of the flexible substrate, the connection can be performed while the flexible substrate is in an extended state.
Therefore, since the flexible substrate does not bulge at the connection portion, an increase in the mounting space is prevented, and the size of the camera can be reduced.

[0021]

(First Embodiment) FIGS. 1, 2 and 3 show an embodiment of the present invention. 1 is a cross-sectional view focusing on one side of the camera, FIG. 2 is a view of a portion of the mounting substrate 4 in FIG. 1 viewed from the front side of the camera indicated by an arrow B, and FIG. 3 is a mounting substrate in FIG. It is the figure seen from the direction.

In FIG. 1, a main body 1 has a patrone chamber 2.
Is provided with a flat portion 2a on a part of the outer wall, and a mounting substrate 4 is disposed between and parallel to the flat portion 3a between side wall flat portions 3a of the mirror box 3 substantially parallel to the flat portion 2a. . Electrical connectors 7a and 7b are mounted on the surface of the mounting substrate 4 facing the flat portion 2a, and flexible printed boards (flexible substrates) 8a and 8b corresponding to the electrical connectors 7a and 7b are attached and detached. It is connected freely.

On the other hand, in FIG. 2, the surface of the mounting substrate 4 facing the flat portion 3a is a region on the mounting substrate 4 that does not face the flat portion 3a, that is, a region on the mounting substrate surrounded by a dotted line in FIG. At 10a, an electrical connector 7c is mounted, and a flexible printed circuit board 8c is detachably connected.

In FIG. 2, the surface of the mounting substrate 4 facing the flat portion 3a on the surface of the mounting substrate 4 facing the flat portion 3a, ie, the region 10b on the mounting substrate surrounded by the dotted line in FIG. The flexible printed circuit boards 8d and 8e are connected by soldering at solder portions 9d and 9e. For connection by soldering, a flexible printed circuit board or the like whose connection end has a well-known comb shape may be used.

According to the above-described embodiment, the connection of the flexible printed circuit board in the region 10b facing the plane portion 3a on the mounting substrate 4 is performed by soldering, and the flexible printing in other regions not facing the plane portion 3a. Since the connection of the board is performed by the electrical connection connector, the mounting board 4
Can be arranged closer to the plane portion 3a. Therefore, the distance x between the plane portions 2a and 3a can be reduced, that is, the mirror box 3 and the patrone room 2 can be arranged closer to each other than before, and the camera can be downsized.

Furthermore, by connecting the flexible printed circuit board by soldering, the number of electrical connection connectors can be reduced, and the cost can be reduced. Further, in the present embodiment, a horizontal connector that connects the flexible printed board from a direction parallel to the mounting board is used as the electrical connector, but a vertical connector that connects from the vertical direction may be used.

Further, the flexible printed circuit board connected by soldering may be a flexible printed circuit board for connecting electric components mounted on a mirror box, for example, a distance measuring sensor, a photometric sensor, and a liquid crystal display built in a finder. Assembling the connection becomes easier.

In the present embodiment, the mirror box 3
Although the example between the flat part on the patrone side and the flat part on the outer wall of the patrone chamber 2 has been described as an example, the part between the flat part on the spool chamber side of the mirror box 3 and the flat part on the outer wall of the spool chamber may be used. Furthermore, if the electronic components mounted on the mounting substrate 4 also have a thick electronic component mounted in a region facing the flat portion and a relatively thin electronic component is mounted in a region not facing the flat portion, It is possible to use the mounting space more efficiently.

(Second Embodiment) FIGS. 4, 5 and 6 show a camera according to a second embodiment of the present invention. 4 is a cross-sectional view showing a main part of the camera, FIG. 5 is a front view as viewed from a direction D in FIG. 4, and FIG. 6 is a right side view as viewed from a direction E in FIG.

In FIG. 4, on the substrate surface facing the flat portion 2a of the mounting substrate 4, a region on the mounting substrate that does not face the flat portion 2a, that is, a region 14 surrounded by a dotted line in FIG.
A connector 11a for electrical connection is mounted on a, and a flexible printed circuit board 12a is detachably connected to the connector 11a for electrical connection. On the other hand, in a region 14b on the mounting substrate 4 facing the flat portion 2a, the flexible printed circuit 12b is connected by soldering at a solder portion 13b. On the substrate surface facing the flat portion 3a of the mounting substrate 4, a region 14a on the mounting substrate 4 that does not face the flat portion 3a.
, An electrical connection connector 11c is mounted, and the flexible printed circuit board 1 is attached to the electrical connection connector 11c.
2c is detachably connected. Further, on the surface of the mounting substrate 4 facing the flat portion 3a, as shown in FIG.
Flexible printed circuit boards 12d and 12e are soldered on the mounting board 4 facing the flat section 3a by solder sections 13d and 13e. For connection by soldering, a flexible printed circuit board or the like whose connection end has a well-known comb shape may be used.

According to the second embodiment, the regions 14a, 1a on the mounting substrate 4 facing the flat portions 2a, 3a
The connection of the flexible printed circuit board 12b in 4b is performed by soldering, and the flexible printed circuit board 12a in an area 14a that does not face the flat portions 2a and 3a.
Is performed by the electrical connector, the mounting substrate 4 can be arranged closer to the plane portions 2a and 3a. Therefore, the distance y between the flat portions 2a and 3a can be reduced, that is, the mirror box 3 and the patrone chamber can be arranged closer to each other than before, and the size of the camera can be reduced.

Further, by connecting the flexible printed circuit boards 12b, 12d and 12e by soldering, the number of electrical connectors can be reduced, and the cost of the camera can be reduced. In the present embodiment,
As the electrical connectors 11a and 11c, horizontal connectors for connecting the flexible printed boards 12a, 12b and 12c from a direction parallel to the mounting board 4 are used.
Instead, a vertical connector that connects from the vertical direction may be used.

Further, the flexible printed circuit boards 12b, 12d and 12e connected by soldering are used to connect electric components mounted on the mirror box 3, for example, a distance measuring sensor, a photometric sensor, a liquid crystal display with a built-in finder, and the like. When applied to a flexible printed circuit board, assembly of the board connection is facilitated.

In this embodiment, the mirror box 3
Although the example is shown between the flat part on the patrone chamber 2 side and the flat part on the outer wall of the patrone chamber, the mirror box 3 may be installed between the flat part on the spool chamber side and the flat part on the outer wall of the spool chamber. Furthermore, the electronic components mounted on the mounting substrate 4 can be further saved by mounting thick electronic components in a region facing the flat portion and mounting relatively thin electronic components in a region not facing the flat portion. The board can be mounted in a space.

(Third Embodiment) FIGS. 7 and 8 show a camera according to a third embodiment of the present invention. FIG. 7 is a cross-sectional view showing a main part of the camera, and FIG. 8 is a side view as viewed from a direction F in FIG. On the surface of the mounting substrate 4 facing the flat portion 2a, the electrical connectors 15a and 15b are mounted on the surface of the mounting substrate 4 that does not face the flat portion 2a. Flexible printed circuit boards 16a, 16b
Are laid in a state of being overlapped from the direction of arrow 17 in FIG. 8, and are detachably connected to the electrical connectors 15a and 15b. At this time, the electrical connection connectors 15a, 15b
8, the connecting directions 18a and 18b of the flexible printed boards 16a and 16b in FIG. 8 are set in opposite directions, and the flexible printed board 16b is provided with a folded portion 19 as shown in FIG.
Connected to.

According to the third embodiment, the flexible printed circuit board 16a and the electrical connector 15
In contrast to the connection a, the connection between the flexible printed circuit board 16b and the connector 15b for electrical connection is laid in a state of being superimposed halfway from substantially the same direction, and the connection direction of the connector 15b for electrical connection is reversed in the vicinity of the connection portion. Become. As a result, the distance z between the electrical connection connectors 15a and 15b can be reduced, and the mounting space required for connecting the flexible printed circuit board can be reduced. In the present embodiment, the electrical connectors 15a, 1
Since 5b is mounted in a region not facing the flat portions 2a and 3a, a mounting space can be efficiently constructed, and the camera can be reduced in size. In the present embodiment,
Although the connecting portion is provided between the flat portion of the mirror box 3 on the patrone room side and the flat portion of the patrone room outer wall,
The mirror box 3 may be provided between the flat portion on the spool chamber side and the flat portion on the outer wall of the spool chamber.

(Fourth Embodiment) FIGS. 9 and 10 show a camera according to a fourth embodiment of the present invention. This embodiment is equivalent to a modification of the third embodiment. FIG. 9 is a cross-sectional view showing the configuration of a main part of a camera.
FIG. 10 is a side view as seen from the direction of arrow G in FIG.

In FIG. 10, the electrical connection connector 15
b, only the flexible printed circuit board 16b provided with the U-turn portion 21 and rotated on the same plane,
The end is connected to the electrical connector 15b.
According to this configuration, the electrical connectors 15a and 15b are guided on the mounting board 4 in a state of being overlapped from the direction of the arrow 17,
Flexible printed circuit boards 20a and 20
Since the connection directions 18a and 18b of b are reversed, the distance w between the electrical connection connectors 15a and 15b can be reduced. As a result, the mounting space required for connecting the boards can be reduced, and the size of the camera can be reduced.

Further, since the flexible printed circuit board 16b is provided with the U-turn portion 21 and is returned, the flexible printed circuit board 16b can be easily connected to a flexible printed circuit board having a structure such as a double-sided structure or a multilayer structure which is difficult to be folded. be able to. Further, in the present embodiment, since the electrical connectors 15a and 15b are mounted in a region that does not face the flat portions 2a and 3a, the connection space can be reduced, and the camera can be further downsized. In the present embodiment, the connection space is between the flat portion on the patrone side of the mirror box 3 and the flat portion on the outer wall of the patrone chamber. An interval may be used.

In the above embodiments, the connection by soldering may be other alternative means, for example, welding, thermocompression bonding, ultrasonic connection, or the like.

[Correspondence between the Invention and the Embodiment] In the above embodiments, the main body 1 corresponds to the main body side member described in the claims, and the mirror box 3 corresponds to the dark box part described in the claims. In addition, the flexible printed circuit boards 8a to 8e, 12
Each of a to 12e, 20a, and 20b corresponds to the connection substrate and the flexible substrate described in the claims.

[0042]

As described above, according to the first aspect of the present invention, when the connection board to be connected to the mounting board is formed from the dark box side, the connection board is soldered. Alternatively, since the connection is made by connection means other than the connector, the mounting space of the mounting substrate and the connecting substrate can be reduced with a simple and inexpensive configuration, and thus the camera can be downsized.

According to the second aspect of the present invention, when the main body side member is disposed adjacent to the dark box portion and the mounting substrate is disposed in the gap, the main body side member of the mounting substrate is disposed. In the flexible substrate connected to the member-facing side, the connection with the main body side member is performed in a place where the gap is small by soldering or a connection means other than a connector, and the connection in the place where the gap is wide is performed. Is performed using a connector, so that an optimal connection process can be performed while reducing the mounting space, the number of connectors to be used can be reduced, and the cost of the camera can be reduced.

According to the invention described in claim 3 of the present application, when the flexible substrate connected by using a connector is guided onto the mounting substrate from the same direction in a state where a plurality of flexible substrates are stacked, Since the connection port of the connector on the upper side is made opposite to the connection port of the connector of the other flexible substrate, the handling of the connector section does not become complicated and the connection section becomes thick. Can be prevented. Therefore, the mounting space is reduced, and the camera can be downsized.

According to the invention as set forth in claim 4 of the present application, the flexible substrate having the connection port of the connector reversed is subjected to a U-shaped bending process near the connector,
Alternatively, since the two-fold bending process is performed, it is possible to prevent the mounting space from being enlarged and to reduce the size of the camera without complicating the layout of the connector portion.

According to the invention as set forth in claim 5 of the present application, the connection port of the connector uses a horizontal connector provided on the horizontal side of the mounting board, so that the flexible board is connected. Since there is no swelling at the part, the mounting space is prevented from being enlarged, and the camera can be made smaller.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of one side of a camera showing a first embodiment of the present invention.

FIG. 2 is a view focusing on the mounting board portion of FIG. 1 showing the first embodiment of the present invention, as viewed from the front side of the camera.

FIG. 3 is a view focusing on the mounting board portion of FIG. 2 showing the first embodiment of the present invention, and is a diagram showing a surface of the mounting board on a mirror box side.

FIG. 4 is a cross-sectional view of one side of a camera showing a second embodiment of the present invention.

FIG. 5 is a view focusing on the mounting board portion of FIG. 3 showing the second embodiment of the present invention, as viewed from the front side of the camera.

FIG. 6 is a view focusing on the mounting board portion of FIG. 4 showing the second embodiment of the present invention, and is a diagram showing a surface of the mounting board on the spool chamber side.

FIG. 7 is a cross-sectional view of one side of a camera showing a third embodiment of the present invention.

FIG. 8 is a view focusing on the mounting board portion of FIG. 5 showing the third embodiment of the present invention, as viewed from the film chamber side.

FIG. 9 is a cross-sectional view of one side of a camera showing a fourth embodiment of the present invention.

FIG. 10 is a view focusing on the mounting board portion of FIG. 7 showing the fourth embodiment of the present invention, and is a view from the film chamber side.

FIG. 11 is a cross-sectional view of one side of a camera showing an example of a conventional camera.

FIG. 12 is a view focusing on the mounting board portion of FIG. 9 showing an example of a conventional camera, and is a view from the film chamber side.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Main body part 2 Spool room 3 Mirror box 4 Mounting board 7a, 7b, 7c Electrical connection connector 8a, 8b, 8c, 8d, 8e, 16a, 16b Flexible printed board 9d, 9e, 13b, 13d, 13e Solder part 11a, 11c, 15a, 15b Electrical connector 12a, 12b, 12c, 12d, 12e Flexible printed circuit board 18a, 18b Connection direction 19 Folding part 21 U-turn part

Claims (5)

[Claims] 1. A dark box part having a flat part on an outer wall, a mounting board disposed close to the flat part, and a connection board electrically connected to a surface of the mounting board on the dark box part side. The camera according to claim 1, wherein the connection board is connected to the mounting board by soldering or by connection means other than a connector. 2. A dark box portion having a flat surface portion on an outer wall, a main body side member disposed close to the flat surface portion and having a surface shape having a gap with respect to the flat surface portion depending on a location, and along the flat surface portion. In a camera comprising a mounted mounting board and a plurality of flexible boards electrically connected to the mounting board, the flexible board connected to a side of the mounting board facing the body-side member. The camera is characterized in that the connection between the flexible substrate and the main body side member is made at a place where the distance is small by soldering or a connection means other than a connector, and the connection at the place where the distance is wide is made using a connector. 3. The flexible board connected using a connector, when a plurality of flexible boards are led onto the mounting board from the same direction in a state where a plurality of the boards are stacked, the connection port of the connector on the upper side is connected to another board. 3. The camera according to claim 2, wherein the camera is turned upside down with respect to the connection port of the connector on the flexible board. 4. The flexible substrate in which the connection port of the connector is turned upside down, is bent in a U shape near the connector, or is bent in two. The camera according to claim 2 or 3, wherein 5. The camera according to claim 2, wherein the connector is a horizontal connector whose connection port is provided on a horizontal side of the mounting board.