JP2008268653A - Camera - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that in reinforcement by a sheet metal, the degree of freedom of shape is low and arrangement near a high-voltage part is impossible and in reinforcement by a sheet metal member, weight and the number of components are increased. <P>SOLUTION: A camera has: a lens barrel; a flash light emitting unit; a bottom board holding the movable part of the lens barrel; a chassis member where a first fixing part to which the bottom board is fixed and a second fixing part to which the flash light emitting unit is fixed are formed; and a reinforcing member made of an insulating material, where a plane part facing the second fixing part and an electronic component attaching part are formed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a camera, and more particularly to a reinforcing structure of a camera body.

  Conventionally, with respect to the load on the upper part of the lens barrel, a plurality of reinforcing sheet metals are combined inside the camera body to increase the strength and relieve stress inside the camera body. As a result, components such as a lens barrel and a substrate that would be damaged by an external force were protected.

In addition, in order to connect the finder unit in a space-efficient manner, a through hole is made in the body structural member, and after the finder unit is assembled, the through hole is connected with a member made of a strong material such as high-strength (rigid) plastic or metal. It has been known. (For example, see Patent Document 1)
Japanese Patent No. 3548303

  However, the reinforcement with the sheet metal according to the conventional example has a problem that the degree of freedom of shape is low and it cannot be arranged near the high voltage portion. Further, the reinforcement with the sheet metal member has increased the weight and the number of parts. An object of the present invention is to solve the above-described problems and provide a camera that is lightweight and has a small number of parts while maintaining sufficient strength.

  The camera of the present invention includes a lens barrel, a flash light emitting unit, a ground plate that holds a movable portion of the lens barrel, a first fixed portion to which the ground plate is fixed, and a flash light emitting unit to which the flash light emitting unit is fixed. And a reinforcing member made of an insulating material on which a planar portion facing the second fixing portion and an electronic component mounting portion are formed.

  As described above, according to the present invention, it is possible to provide a light-weight camera with a small number of parts while maintaining sufficient strength.

  Embodiments of the present invention will be described below in detail based on the following examples with reference to the drawings.

  The digital camera which is embodiment of this invention is demonstrated using FIGS.

  FIG. 1 is an overall view of a digital camera. In FIG. 1, reference numeral 101 denotes a lens barrel. Reference numeral 102 denotes a release button. A zoom lever 103 performs a zoom operation of the lens barrel 101. Reference numeral 104 denotes a power lever for turning on the power. Reference numeral 105 denotes a power-off button. Reference numeral 106 denotes a mode dial for switching the photographing mode. Reference numeral 107 denotes a rotary built-in strobe which is a flash light emitting unit, which rotates around a rotation axis. A digital camera accessory mounting seat 108 is a seat for attaching accessories such as an external strobe.

  FIG. 2 is a perspective view of the digital camera shown in FIG. In FIG. 2, reference numeral 201 denotes a light emitting unit of the strobe unit 107. Reference numeral 202 denotes a rotation axis of the strobe 107.

  FIG. 3 is a diagram showing main components around the lens barrel 101. In FIG. 3, 301 is a main chassis made of sheet metal, and the material is stainless steel, for example. Reference numeral 301a denotes a strobe unit fixing portion to which the strobe unit 107 is fixed. Reference numeral 301b denotes a tripod mounting portion (third fixing portion) to which the tripod mounting member is fixed.

  Reference numeral 302 denotes an insulating reinforcing member. For example, the material is an insulating material such as polycarbonate resin containing glass fiber. A speaker 303 is a lead wire and is electrically connected to the connector on the main board. Reference numeral 303 a denotes a mounting seat (electronic component mounting portion) of the speaker 303 provided on the side surface of the reinforcing member 302, and a sound pressure from the speaker 303 can be increased by providing a space on the back surface of the speaker 303.

  FIG. 4 is an assembly diagram of main components around the lens barrel 101 shown in FIG. 401 and 402 are fixing screws. Reference numeral 403 denotes a base plate that holds the movable portion of the lens barrel 101. Reference numeral 401 denotes a screw for fixing the base plate 403 and the insulating reinforcing member 302. By making the ground planes of the base plate 403 and the insulating reinforcing material 302 have the same height, the influence of the mounting position due to the component accuracy is reduced. Reference numeral 402 denotes a screw for fixing the main plate 403 and the main chassis 301. By making the ground planes of the base plate 403 and the main chassis 301 have the same height, the influence of the mounting position due to the component accuracy is reduced. By making the screw 401 and the screw 402 coaxial, the area occupied by the boss for fixing the screw of the base plate 403 can be minimized.

  The shape characteristics of the main chassis 301 and the insulating reinforcing material 302 are shown using FIG. As shown in FIG. 4, the main chassis 301 has a U shape as viewed from the side of the lens barrel so as to cover the upper and lower surfaces of the lens barrel 101. In addition, the central portion of the insulating reinforcing member 302 is provided with a circular opening that maintains a uniform gap, for example, 0.5 mm, from the lens barrel 101. On the upper and lower surfaces of the reinforcing member 302, flat portions facing the strobe unit fixing portion 301a and the tripod seat mounting portion 301b of the main chassis 301 are formed in parallel. After assembly, the main chassis 301 is dimensioned so as to leave a slight gap, for example, a gap of 0.05 to 0.2 mm, and the main chassis 301 is not deformed by attaching the reinforcing member 302.

  In the assembling procedure, the insulating reinforcing material 302 is assembled from the front surface of the base plate 403 and fixed with screws 401, and the main chassis 301 is assembled from the rear surface of the base plate 403 and fixed by 402. Therefore, the surface where the main plate 403 and the main chassis 301 are in contact becomes the fixing portion (first fixing portion) of the main plate 403.

  FIG. 5 is a three-side view of the state where the main chassis 301 and the insulating reinforcing material 302 are assembled to the ground plane 403 in FIG.

  FIG. 6 is a diagram illustrating the present reinforcing structure. In FIG. 6, P is a load from the upper part of the lens barrel 101, for example, an external force received by the built-in strobe 107 or an accessory attached to the accessory mounting seat 108. P1 and P2 are component forces of the load P, and the load P is divided into component forces P1 and P2 by a circular opening in the center of the insulating reinforcing material 302. x and y are the gaps of 0.05 to 0.2 mm.

  FIG. 7 is a state diagram in which a strobe substrate 701 and a strobe capacitor 702 which are high voltage portions are attached to the reinforcing material 302. In the present invention, an external force is not transmitted to the lens barrel 101 located at the central portion of the reinforcing material by the insulating reinforcing material 302 locked in a space-saving manner with a load P from the upper portion of the lens barrel 101, and an electronic component is attached. I can do it.

  FIG. 8 is another embodiment of the present invention. In this embodiment, the reinforcing member 302 is formed with a tripod attachment portion 801 and a strap attachment portion 802 that require mechanical strength. With this configuration, the number of parts can be reduced.

  As described above, according to the present invention, the following effects can be obtained.

  High-strength reinforcement can be performed without increasing the size of the main body, and the solder parts of high-voltage components, microphones, speakers, and other electrical components are short-circuited to the reinforcing member of the insulating member with an insulating material (for example, insulating bond). Without being prevented, the solder part can be attached to the reinforcing member while being exposed.

  Functional shapes such as a tripod attachment part and a strap attachment part can be taken in, and the weight of the camera body and the number of parts can be reduced.

Overall view of the example 1 perspective view Main parts around the lens barrel 101 Assembly drawing of FIG. Three views of FIG. Diagram explaining the reinforcing structure Diagram explaining the strobe condenser attached The figure explaining the reinforcement member of other embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Lens barrel 107 Built-in flash 108 Accessory attachment seat 201 Light emission part 202 Rotating shaft 301 Main chassis 302 Insulation reinforcement member 302a Speaker attachment seat 303 Speaker 403 Ground plate 801 Tripod attachment part 802 Strap attachment part

Claims (6)

A lens barrel;
A flash unit,
A base plate for holding the movable part of the lens barrel;
A chassis member formed with a first fixing portion to which the base plate is fixed and a second fixing portion to which the flash light emitting unit is fixed;
A camera comprising: a reinforcing member made of an insulating material on which a flat portion facing the second fixing portion and an electronic component mounting portion are formed.   The camera according to claim 1, wherein the electronic component mounting portion is a speaker mounting portion.   The camera according to claim 1, wherein the electronic component mounting portion is a microphone mounting portion.   The chassis member is formed with a third fixing portion to which a tripod mounting member is fixed, and the insulating member is formed with a flat portion facing the third fixing portion. The camera according to any one of claims 1 to 3.   The camera according to any one of claims 1 to 3, wherein a tripod attachment member is formed on the chassis member.   The camera according to claim 1, wherein a strap attachment member is formed on the chassis member.

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