JP2006030797A - Structure of camera body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the number of components which can be made common even for a camera with different specifications. <P>SOLUTION: A battery storage unit 16 as a different body from a main body 11 of a photographic camera is coupled with the main body 11 and united. The battery storage unit 16 is provided with a capacitor holding member 66 for holding a main capacitor 55, a back lid opening/closing detector 46 which detects a back lid being opened and closed, a PCB fitting part 60 for fixing a PCB 38 for control, a fixture fitting part 61 for fixing a strap fixture 32, and a motor holding member 63 for holding a motor 42. The battery chamber storage unit 16 provided with respective function components can be made common even for a photographic camera with different specifications, so the camera with different specifications can be increased in number of components which can be made common. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to the structure of a camera body of a camera using a battery as a power source.

  The camera body of a photographic camera requires electricity to operate the motor, strobe, various sensors, CPU, etc. for driving each mechanism in addition to the photographing mechanism and film feeding mechanism for photographing. A large number of various parts are incorporated (see Patent Document 1). A battery is usually used as a power source for operating these motors and strobes.

  The types of batteries used in photographic cameras include primary batteries such as alkaline batteries and secondary batteries such as nickel metal hydride batteries. The type of batteries used for each photographic camera manufacturer and model of each manufacturer. Is predetermined. For this reason, the photographic camera is provided with a battery storage chamber that matches the shape of the battery used. The battery storage chamber is usually formed integrally with the camera body (camera body) so that the number of camera assembly steps can be reduced and the manufacturing cost of the camera can be reduced.

JP 2002-62569 A (pages 3 to 5)

  By the way, it is possible to reduce the number of steps for assembling the camera by forming the battery storage chamber integrally with the camera body, but this battery storage chamber is formed in a shape that matches the shape of the battery used. If the type of battery used varies depending on the model, the camera body cannot be made common even if the specifications of other cameras such as the photographing lens and lens barrel are almost the same. Therefore, when manufacturing various types of cameras having different specifications, the manufacturing cost may be increased by forming the battery storage chamber integrally with the camera body. In addition, when the types of batteries used are different, it is necessary to design a camera body for each model, which requires much time and effort for the design work.

  In view of this, there is a method in which a battery storage unit having a battery storage chamber is provided separately from the camera body so that the battery storage unit is shared by many types of cameras having different specifications. In this case, since only the battery storage unit (battery storage chamber) is used in common, there is a limit to reducing the cost and reducing the effort of design work. Therefore, it is required to increase the number of parts that can be shared.

  An object of the present invention is to provide a camera body structure of a camera that can increase the number of parts that can be shared by cameras having different specifications.

  The present invention includes a body main body provided with a photographing lens, a finder, and a strobe light emitting unit, and a storage compartment for a power battery, and a main capacitor for a strobe and a zoom motor driven during zooming of the photographing lens And a detecting means for detecting that a film loading lid that is pivotally attached to the body body is closed, and one end side of the circuit board fixed to the body body is fixed. A separate unit component provided with at least any one of the attachment portion is connected and integrated.

  According to the structure of the camera body of the present invention, a power supply battery storage chamber is formed in the body main body provided with the photographing lens, the finder, and the strobe light emitting unit, and the main condenser for the strobe and the photographing lens. A zoom motor driven during zooming, a detecting means for detecting that a loading lid for film loading, which is pivotally attached to the body main body, is closed, and a circuit board having one end fixed to the body main body Since the separate unit component provided with at least one of the attachment portion that fixes the other end of the unit is connected and integrated, the unit component holding various functional components is specified. Can be shared by different cameras. As a result, it is possible to increase the number of parts that can be shared by many types of cameras having different specifications, thereby reducing the manufacturing cost of the camera. Further, when designing cameras with different specifications, it is only necessary to newly design a portion that is not shared, that is, a portion with a different specification, so that it is possible to reduce the design work.

  1 and 2 are a front perspective view and a rear perspective view of a photographic camera 10 embodying the present invention. The photographic camera 10 is roughly divided so as to cover a camera body main body 11 (see FIG. 3) in which a photographing mechanism is incorporated and a front surface, a side surface, and a part of the rear surface of the camera body main body (hereinafter simply referred to as a body main body) 11. A body cover 12 formed on the body, a loading lid (back lid) 13 pivotally attached to the body body 11 and opened and closed when the photographic film is loaded, and a battery 15 for supplying power to each part of the photographic camera 10 (see FIG. 4). Is configured from a battery storage unit 16 (see FIG. 3) and a battery lid 17 formed so as to cover the battery storage unit 16.

  On the front surface of the main body cover 12 (body main body 11), a lens barrel 21 in which a photographing lens 20 is incorporated, a strobe light emitting unit 23 constituting a strobe device (not shown), a distance measuring window 24, and photometry for automatic exposure. A window 25, an objective finder window 26 constituting a finder, a self-timer display window 27, and the like are provided. The lens barrel 21 is movable between a storage position stored inside the main body cover 12 when not in use and a protruding position protruding from the main body cover 12 during photographing.

  A release button 28 is provided on the upper surface of the main body cover 12. In addition to the eyepiece finder window 29 constituting the finder and the back cover opening / closing switch 30 for opening and closing the loading cover 13, a power switch and various settings are performed on the rear surface of the main body cover 12, although illustration is omitted. An operation key and the like are provided, and a strap fixing tool 32 to which a strap (not shown) can be attached is provided on the side surface of the main body cover 12 as an external component.

  FIG. 3 is a perspective view of the external shape of the camera body of the present invention composed of the body main body 11 and the battery storage unit 16. As shown in FIG. 3, in the left-right direction of the lens barrel 21 of the body main body 11, a film loading unit 35 in which a photographic film (film cartridge) (not shown) is loaded, and a photograph pulled out from the film loading unit 35. A film take-up portion 36 for taking up the film is provided so as to sandwich the lens barrel 21. A control printed wiring board (hereinafter simply referred to as a control PCB) 38 on which a CPU (microprocessor) 37 for controlling the operation of the photographic camera 10 and the like is mounted is provided on the upper portion of the lens barrel 21. Yes. Further, a distance measuring unit 40 in which a finder optical system and a distance measuring element are incorporated is provided between the control PCB 38 and the lens barrel 17.

  Although not shown, an aperture, a guide rail for conveying a photographic film (not shown), and the like are formed on the back side of the lens barrel 21. In the body main body 11, a lens barrel moving mechanism 41 (see FIG. 4) for moving the lens barrel 21 in the photographing optical axis direction is provided. The lens barrel moving mechanism 41 includes a plurality of gears 41a and the like. During zooming, each gear is rotated by a zoom motor 42 (see FIG. 4), which will be described later, so that the lens barrel 21 moves in the direction of the photographic optical axis, that is, between the above-mentioned storage position and protruding position. Can be made.

  As shown in FIG. 2, the loading lid 13 is attached to the body main body 11 via a hinge portion 45. The hinge portion 45 includes a hinge shaft 45 a formed on the body main body 11 and a hinge receiving portion 45 b formed on the loading lid 13. The loading lid 13 has a hinged portion 45 as a center, a closed position covering the back surface of the body main body 11 and a film loading opening (not shown) formed in the film loading portion 35, and the loading opening (not shown). Z) can be freely rotated between the exposed position and the exposed position.

  The loading lid 13 is fixed to the body main body 11 in the closed position except when the photographic film is loaded, and can be rotated to the opened position only when the photographer operates the above-described back lid opening / closing switch 30. Then, a photographic film (not shown) is loaded from a film loading opening (not shown), the loading lid 13 is rotated to the closed position, and then the back lid opening / closing switch 30 is operated to load the loading lid 13. Is fixed to the body body 11, a back cover opening / closing detector 46 (see FIG. 5) described later detects this, and the initial feeding of the photographic film is started.

  The battery lid 17 is a loading lid that is opened and closed when the battery 15 (see FIG. 4) is loaded or removed, and is attached to the body main body 11 via a hinge portion 47 as shown in FIG. . The hinge portion 47 is also composed of a hinge shaft 47a formed on the body main body 11 and a hinge receiving portion 47b formed on the battery lid 17, and has an open position that exposes a battery storage unit 16 (see FIG. 3) to be described later. The battery housing unit 16 is freely rotated between the closed position and the closed position. The battery lid 17 is fixed to the body main body 11 in a closed position except when the battery 15 is loaded, and is rotated to the open position only when the photographer operates the battery lid opening / closing switch 48 provided on the loading lid 13. be able to.

  One end side of the control PCB 38 is fixed (screwed) to the body main body 11 with a screw 49, and the other end side is screwed to a PCB mounting portion (screwed boss) provided in the battery storage unit 16 as will be described in detail later. Has been. In addition to the CPU 37 as shown in FIG. 3, a RAM, a ROM, etc. are mounted on the control PCB 38, although not shown. Further, the control PCB 38 includes various motors and detectors (sensors) such as a zoom motor 42, a back cover opening / closing detector 46, and a pressing operation detector 50 for detecting the pressing operation of the release button 28, and a strobe described later. Various PCBs on which electronic parts for operating each part of the photographic camera 10 such as a printed wiring board (strobe PCB) 51 (see FIG. 4) are mounted are electrically connected via lead wires and flexible printed wiring boards (not shown). Connected.

  The battery storage unit 16 constitutes a camera body together with the body main body 11. The battery storage unit 16 is provided separately from the body main body 11 and is screwed to the body main body 11 by screws 72, unit fixing bosses 70 and the like, which will be described in detail later. As a result, if the photographic camera stores the same type of battery 15, the battery storage unit 16 can be shared by photographic cameras having different specifications such as the photographing lens 20 and the lens barrel 21, as described above. In addition, if only the battery storage chamber 53 (see FIG. 4) formed in the unit is shared, the number of shared parts is small, so that the cost can be reduced or the design work can be reduced. There is a limit to reducing time and effort.

  Therefore, in this embodiment, various functional parts that can be shared by photographic cameras having different specifications are provided in the battery storage unit 16, so that functional parts that are not so much related to the specifications (specs) of the camera can be transferred to photographic cameras having different specifications. Make it common. Hereinafter, the structure of the battery storage unit 16 will be described with reference to FIGS. 4 and 5. 4 is a perspective view of the battery storage unit 16 as viewed from the direction A in FIG. 3, and FIG. 5 is a perspective view of the battery storage unit 16 as viewed from the direction B in FIG. In FIG. 5, the body main body 11 and the control PCB 38 are not shown.

  As shown in FIGS. 4 and 5, a battery storage chamber 53 in which the above-described battery 15 is stored and a capacitor chamber in which the above-described main capacitor 55 is held are provided at a substantially central portion of the unit body 16 a of the battery storage unit 16. 57 is formed. Further, on the upper surface of the unit main body 16a, a back cover open / close detector 46, a PCB mounting portion 60 for fixing the other end of the control PCB 38, one end of which is fixed to the body main body 11, and a fixing for fixing the strap fixing tool 32. A tool mounting portion 61 and a unit connecting portion 62 for connecting the unit main body 16a to the body main body 11 are provided. Further, a motor holding member 63 that holds the zoom motor 42 is provided on the bottom surface of the unit main body 16a.

  In the battery storage chamber 53, anode sections 64 a and anode sections 64 b are respectively provided at positions corresponding to the anode and the negative electrode of the stored battery 15 (see FIG. 4). Each section 64a, 64b is electrically connected to the control PCB 38 via a lead wiring or the like (not shown). Then, the electric power of the battery 15 stored in the battery storage chamber 53 is supplied to each part of the photographic camera 10 via each of the slices 64a and 64b and the control PCB 38.

  The main capacitor 55 is held in the capacitor chamber 57 by a capacitor holding member 66 screwed to the unit body 16a. The main capacitor 55 is electrically connected to the strobe PCB 51 by soldering the connecting terminal 55a to the strobe PCB 51 described above. The strobe PCB 51 is provided with a transformer (not shown) in addition to the main capacitor 55, and the strobe light emitting unit 22 and the control PCB 38 are electrically connected via a lead wiring (not shown). It is connected. The main capacitor 55 stores electric charges boosted from the battery 15 connected via the control PCB 38 via a transformer (not shown). Then, the electric charge stored in the main capacitor 55 is caused to flow through the discharge tube of the strobe light emitting unit 22 when the strobe light is emitted.

  The back cover open / close detector 46 has either a lock position where the back cover open / close switch 30 fixed to the body cover 12 fixes the loading lid 13 in the closed position, or a lock release position where the loading lid 13 can be rotated. It is detected whether or not the loading lid 13 is in a rotatable state. In the present embodiment, as the back cover opening / closing detector 46, a pair of metal contact pieces 46a, 46b electrically connected to the control PCB 38 is held by a holder 46c having an insulating property such as plastic is used ( (See FIG. 5). Further, when the back cover opening / closing switch 30 is switched to the unlocking position, the protrusion 30b protrudes from the switch body 30a toward the metal contact pieces 46a and 46b, and when the switching operation is performed to the locking position, the protrusion 30b is What retracts in the switch main body 30a is used.

  When the back cover opening / closing switch 30 is switched from the locked position to the unlocked position, the protrusion 30b protrudes from the switch body 30a and the metal contact pieces 46a and 46b come into contact with each other. It is determined that Conversely, when the back cover opening / closing switch 30 is switched from the unlocked position to the locked position, both the metal contact pieces 46a and 46b are separated, so the CPU 37 determines that the loading lid 13 is in a fixed state. . In this embodiment, the switching operation of the back cover opening / closing switch 30 is detected, and it is indirectly detected by detecting whether the loading cover 13 is in a rotatable state or a fixed state. 13 is detected on the surface of the loading lid 13 on the body main body 11 side, and a protrusion capable of pressing the metal contact pieces 46a and 46b is formed to directly detect the opening and closing of the loading lid 13. You may do it. Further, the shapes of the back cover opening / closing switch 30 and the back cover opening / closing detector 46 are not limited to the shape (structure) of the present embodiment, and switches and detectors having arbitrary shapes may be used.

  As the PCB mounting portion 60, for example, a screw boss is used in the present embodiment. For this reason, a through hole 38a for screwing is formed in the control PCB 38 in advance. Then, the control PCB 38 is screwed to the PCB holding member (screw fixing boss) 60 with screws 68 through the through holes 38a. Accordingly, both ends of the control PCB 38 are fixed to the body main body 11 and the battery storage unit 16, respectively.

  Similarly to the PCB mounting part 60, the fixing tool mounting part 61 uses a screw boss. Therefore, the male screw part 32a is formed in the strap fixing tool 32, and a through hole (not shown) is formed at the position where the strap fixing tool 32 of the main body cover 12 is attached. Thereby, the strap fixing tool 32 is stored in the battery by screwing the strap fixing tool 32 to the fixing tool mounting portion (screw fixing boss) 61 through a through hole (not shown) formed in the main body cover 12. It is fixed to the unit 16.

  The unit connecting portion 62 is provided at a position corresponding to a unit screwing boss 70 (see FIG. 4) formed at a predetermined position on the side surface of the film loading portion 35. In the unit connecting portion 62, a fitting hole 62a (see FIG. 5) that fits into the unit screw fixing boss 70 is formed on the surface facing the unit screw fixing boss 70. Further, a screw hole (through hole) 62b is formed in the unit connecting portion 62 so that the screw boss 70 fitted in the fitting hole 62a can be screwed from the battery storage unit 16 side. . Therefore, after the screw boss 70 of the body main body 11 is fitted into the fitting hole 62a of the unit connecting portion 62, the battery storage unit 16 is attached to the body by screwing the screw boss 70 with the screw 72. The main body 11 can be connected and integrated.

  The zoom motor 42 is held on the bottom surface of the battery storage unit 16 by a motor holding member 63. A gear 75 is attached to the rotation shaft of the zoom motor 42. Therefore, when the battery storage unit 16 is connected to the body body 11, the gear 41a is exposed on the side surface of the film loading unit 35 so that the gear 75 meshes with the gear 41a constituting the lens barrel moving mechanism 41. An opening 35a is formed. At the same time, the arrangement of the zoom motor 42 and the lens barrel moving mechanism 41 is adjusted. Accordingly, the lens barrel 21 can be moved in the direction of the photographing optical axis via the lens barrel moving mechanism 41 by rotating the zoom motor 42.

  As described above, the camera body of the photographic camera 10 includes the battery storage chamber 53, the zoom motor 42 (motor holding member 63), the back cover open / close detector 46, and the main capacitor 55 (capacitor holding member 66). , A separate battery storage unit 16 provided with functional parts that can be used even with a photographic camera having different specifications such as a PCB mounting portion 60 and a fixture mounting portion 61 is connected to the body main body 11 and integrated. Thus, even in a photographic camera having different photographic mechanism specifications such as the photographic lens 20 and the lens barrel 21, the battery compartment storage unit 16 and each functional component can be shared with the photographic camera 10. As a result, it is possible to increase the number of parts that can be shared by multiple types of photo cameras having different specifications, thereby reducing the manufacturing cost of the photo camera. Further, when designing photo cameras having different specifications, it is only necessary to newly design a portion that is not shared, that is, a portion having different specifications, so that it is possible to reduce the effort of design work.

  In the present embodiment, the control PCB 38 is fixed to the PCB mounting portion 60. However, the present invention is not limited to this, and electronic components for operating each part of the photographic camera 10 are mounted. Various PCBs may be fixed. Furthermore, a plurality of PCB mounting portions may be provided in the battery storage unit 16 so that the plurality of PCBs can be fixed.

  Further, the appearance parts fixed to the fixing tool attaching portion 61 are not limited to the strap fixing tool 32, and various appearance parts such as a grip member that becomes a finger hook when holding the photographic camera 10 may be fixed. Good. Furthermore, a plurality of fixture attachment portions may be provided in the battery storage unit 16 so that a plurality of external parts can be fixed.

  Furthermore, the battery 15 stored in the battery storage unit 16 is not limited to either a primary battery or a secondary battery, and can store a battery 15 of any type and shape. Further, the number of batteries 15 stored in the battery storage chamber 53 is not limited to one, and two or more batteries may be stored. In this case, what is necessary is just to change the shape of the battery storage chamber 53 according to the kind, shape, and number of the batteries 15 to be stored.

  In this embodiment, the photographic camera 10 that takes a picture using a photographic film has been described. However, the present invention is not limited to the photographic camera, and a battery such as a digital camera or a digital video camera is powered. It can be applied to various cameras. In this case, it is not necessary to provide the back cover opening / closing detector 46 in the battery storage unit 16.

It is a front perspective view of the photographic camera which implemented this invention. It is a rear perspective view of a photo camera It is a perspective view of the external appearance shape of the camera body which consists of a body main body and a battery storage unit. It is the perspective view which looked at the battery storage unit from the A direction in FIG. It is the perspective view which looked at the battery storage unit from the B direction in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Photo camera 11 Camera body 13 Back cover 15 Battery 16 Battery storage unit 21 Lens barrel 32 Strap fixture 38 Control PCB
42 Zoom Motor 46 Back Cover Open / Close Detector 53 Battery Storage Room 55 Main Capacitor 60 PCB Mounting Portion 61 Fixing Mounting Portion 62 Unit Connecting Portion 63 Motor Holding Member 66 Capacitor Holding Member 70 Unit Screw Stop Boss

Claims (1)

A power source battery storage chamber is formed in the body main body provided with the photographing lens, finder, and strobe light emitting unit, a strobe main condenser, a zoom motor driven during zooming of the photographing lens, and the body Detecting means for detecting that the loading lid for film loading, which is pivotally attached to the main body so as to be opened and closed, and an attachment portion for fixing the other end side of the circuit board having one end side fixed to the body main body, A structure of a camera body, wherein separate unit parts provided with at least one of the above are connected and integrated.

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