JP2010060782A - Electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide electronic equipment which achieves prevention of damage of parts when assembly and also improvement of degree of freedom in design. <P>SOLUTION: A boundary B of a front cover 10 configured to house a base unit 20A having a cylindrical rotating dial 6 is deviated from the center C of a circle of cylindrical shape. The front cover 10 has a pair of guide portions 15a and 15b, and a diameter D of the circle of the cylindrical shape is larger than width D1 of an opening 13 of a housing portion 12 of the front cover. The base unit has a guide portion 28A having at least part of a cylindrical surface, and the outside diameter D3 of the cylindrical surface is larger than width D2 of space between the pair of guide portions. When assembly, these guide portions 15a and 15b and 28A come into contact with each other to make the width D2 large, whereby the width D1 becomes larger than the diameter D. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electronic device.

  The digital camera is provided with a rotary dial for selecting an operation menu. Digital cameras are assembled by assembling a front cover and a rear cover to interior parts including a rotary dial. It was arranged.

  For example, as shown in FIG. 7A, consider a case where the center C of the rotary dial 6 is not on the boundary line B between the front cover 30 and the rear cover 35 and the center C is shifted to the front cover 30 side. C1 is a straight line passing through the center C and parallel to the boundary line B, and the straight line C1 and the boundary line B do not coincide. In this case, as shown in FIG. 7B, the width D <b> 1 of the opening 32 of the storage portion 31 of the front cover 30 that stores the rotary dial 6 is smaller than the diameter D of the rotary dial 6. Accordingly, when the rotary dial 6 is stored in the storage portion 31, the opening 32 and the outer edge 39 of the rotary dial 6 are rubbed and one or both of them are damaged. On the other hand, if the center C of the rotary dial 6 is arranged on the boundary line B, the width D1 of the opening 32 is equal to or slightly larger than D, so this problem can be solved.

There exists patent document 1 as a prior art.
JP 2006-98773 A

  However, always placing the center C of the rotary dial 6 on the boundary line B between the front cover 30 and the rear cover 35 reduces the degree of freedom in the design of the entire electronic device, and may not allow downsizing.

  Accordingly, an object of the present invention is to provide an electronic device that prevents damage to parts during assembly and increases the degree of design freedom.

  An electronic apparatus according to one aspect of the present invention includes a base unit having a cylindrical operation member, and a cover that covers at least a part of the base unit, and the cover has a circumference of at least a half of the periphery of the operation member. A storage part for storing the operation member by covering and a pair of first guide parts extending from the opening part of the storage part are formed, and the base unit is assembled with the cover on the base unit. In addition, a second guide part that contacts the first guide part is formed outside the operation member, and the pair of first guide parts contact the second guide part when the cover is assembled to the base unit. And setting the outer diameter of the second guide part and the width of the pair of first guide parts so that the cover is elastically deformed and the end of the opening does not contact the second guide part. Features .

  ADVANTAGE OF THE INVENTION According to this invention, the electronic device which raises the freedom degree of design while preventing the damage of the components at the time of an assembly can be provided.

  A digital camera (imaging device) that is an electronic apparatus according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a partially exploded perspective view of the digital camera according to the first embodiment. FIG. 2 is an external perspective view of the digital camera according to the first embodiment.

  Reference numeral 1 denotes a camera body, in which various members that enable photographing are arranged. Reference numeral 2 denotes a grip portion for the photographer to hold the camera body 1. Reference numeral 3 denotes a lens barrel, which changes the focal length of the photographing optical system by being extended or retracted in the optical axis direction. Reference numeral 4 denotes a zoom lever that is operated to change the imaging angle of view of the lens barrel 3 (focal length of the imaging optical system), which is formed in a cylindrical shape and is incorporated in the camera body 1. The zoom lever 4 is rotatable by a predetermined amount in the forward and reverse directions around the axis.

  Reference numeral 5 denotes a release button that can be pressed in two stages. A shooting preparation operation (photometry operation, focus adjustment operation, etc.) is started by half-pressing, and a shooting operation (exposure to an image sensor such as a CCD) is performed by full-pressing operation. ) Is started. Reference numeral 6 denotes a rotary dial (mode dial) for selecting various shooting modes such as a shutter speed priority mode, an aperture priority mode, a portrait shooting mode, a night view shooting mode, and the like, which can be rotated around a rotation axis. The rotary dial 6 is a cylindrical operation member (or input member). Reference numeral 7 denotes a power button for turning on or off the power of the digital camera. Reference numeral 9 denotes a rear cover of the camera body 1.

  Reference numeral 10 denotes a front cover of the camera body 1. The front cover 10 and the rear cover 9 constitute a housing of the camera body 1. Thus, the housing of the camera body 1 includes a pair of covers. In this embodiment, the dividing line of the pair of covers is the boundary line B. As shown in FIG. 2, the center C of the rotary dial 6 is not on the boundary line B between the front cover 10 and the rear cover 9, and the center C is shifted to the front cover 10 side. For this reason, the degree of freedom of design is increased as compared with the case where the center C of the rotary dial 6 always coincides with the boundary line B. However, as shown in FIG. 1, the width D <b> 1 of the opening 13 of the storage portion 12 of the front cover 10 that stores the rotary dial 6 is smaller than the diameter D of the rotary dial 6. The storage portion 12 is a cylindrical hole for storing the rotary dial 6 by covering the periphery of the rotary dial 6 by more than half a circle, and has an arcuate contour 12a when the cylindrical shape is viewed from above. The central angle of the contour 12a is greater than 180 degrees. Therefore, when the rotary dial 6 is stored in the storage portion 12 as it is, the opening 13 and the outer edge 6a of the rotary dial 6 are rubbed and one or both of them are damaged.

  Therefore, in this embodiment, the pair of guide portions (first guide portions) 15 a and 15 b are formed to extend from positions adjacent to the opening portion 13 of the edge portion 10 a that forms the boundary line B of the front cover 10. The guide parts 15a and 15b are guided in contact with a guide part 28A formed on the base unit 20A. The guide portions 15a and 15b are arranged at a position (inner side) lower than the surface (upper surface) 11 of the front cover 10, and are not exposed to the outside after the digital camera is assembled as shown in FIG. The guide portions 15a and 15b have the same shape, and in this embodiment, have a quadrangular prism shape, but the shape is not particularly limited. In this embodiment, the guide portions 15a and 15b are formed by resin molding. When the front cover 10 is described later, the widths of the guide portions 15a and 15b are widened, whereby the width D1 of the opening 13 of the storage portion 12 can be widened to a length slightly larger than the diameter D of the rotary dial 6. Within that range, elastic deformation is possible. Since this deformation is not so large, the material constituting the conventional front cover 10 can be applied.

  Reference numeral 20A denotes a base unit for assembling the rotary dial 6 and the like, and is housed in the housing of the camera body 1. FIG. 3 is an enlarged perspective view of the base unit 20A. The base unit 20 </ b> A includes a rotary dial 6, a sheet metal 21, a flexible substrate 22, a release switch 23, a zoom switch 24, a power switch 25, a speaker 26, and a rotary dial base 27.

  The release switch 23 and the power switch 25 are push-type switches, and the zoom switch 24 is a two-direction detection type switch. The release switch 23 and the power switch 25 are each mounted on the surface of the flexible substrate 22. One end 22 a of the flexible substrate 22 is connected to a control unit (not shown) provided in the camera body 1. The function selected by rotating the rotary dial 6 is transmitted from the flexible substrate 22 to the control unit. A release switch 23 is disposed directly below the center of rotation of the zoom lever 4, and the button foot comes into contact with the release switch 23 by pressing the release button 5. The release switch 23 is disposed at a position one step lower than the zoom switch 24 by bending the flexible substrate 22. Thereby, the release button 5 does not interfere with the release switch 23, and the base unit 20A can be assembled to the front cover 10 in the horizontal direction.

  A guide portion (second guide portion) 28A is formed on the rotary dial base 27 by resin molding. The guide portion 28 </ b> A is disposed on the front cover 10 side of the rotary dial 6 and is formed concentrically with the rotary dial 6. The guide portion 28A has an arc shape when viewed from above, and the central angle is 180 degrees. However, it is sufficient that the guide portion 28A has at least a part of a cylindrical surface concentric with the cylindrical shape of the rotary dial 6. In the present embodiment, the guide portion 28A has a rib shape with an L-shaped cross section. As shown in FIG. 3, the guide portion 28A includes an arc-shaped horizontal portion 29a when viewed from above and an arc-shaped vertical portion 29b when viewed from above. Have. The vertical portion 29b functions as a guide portion that mainly guides the guide portions 15a and 15b so as to come into contact with the guide portions 15a and 15b so as to spread outward, and has a part of the above-described cylindrical surface.

  Hereinafter, with reference to FIG. 4, the relationship after the outline 12a of the storage part 12 of the front cover 10 and the rotary dial 6 will be described. Here, FIG. 4 is a top view of FIG. The contour 12a has an arc shape when viewed from above, and a certain gap is provided between the contour 12a and the rotary dial 6 so that the rotary dial 6 can rotate relative to the front cover 10 after assembly. The base unit 20A is incorporated in a main body (not shown). The center 12b of the arc of the contour 12a of the storage portion 12 is shifted from the boundary B of the front cover 10 toward the front cover 10, the center angle of the contour 12a is 180 degrees or more, and the width D1 is the diameter D of the rotary dial 6. Is set smaller. After the digital camera is assembled as shown in FIG. 2, the center 12b coincides with the center C. Therefore, when the rotary dial 6 is stored in the storage portion 12 as it is, the opening 13 and the outer edge 6a of the rotary dial 6 come into contact with each other and rub. 12c is a straight line passing through the center 12b and parallel to the boundary line B, and the straight line 12c and the boundary line B do not coincide with each other. Further, the distance D2 between the guide portions 15a and 15b of the front cover 10 is set smaller than the outer diameter D3 of the guide portion 28A (the inner diameter of the horizontal portion 29a or the outer diameter of the vertical portion 29b).

  In this state, the front cover 10 is assembled to the base unit 20A along the arrow A direction. The A direction is a direction orthogonal to the boundary line B. In this process, the guide portions 15a and 15b of the front cover 10 are in contact with and guided by the guide portion 28A (mainly the vertical portion 29b). The distance D2 between the guide portions 15a and 15b is smaller than the outer diameter D3 of the guide portion 28A. Therefore, as shown in FIG. 5, after the guide portions 15a and 15b come into contact with the guide portion 28A, the distances D2 between the guide portions 15a and 15b expand in the Ea direction and the Eb direction, respectively, thereby increasing the dimension D1 of the opening 13. Spread. Thereafter, the width D1 of the opening 13 becomes larger than the diameter D of the rotary dial 6 so that no interference occurs between the opening 13 and the rotary dial 6, and the rotary dial 6 does not contact the opening 13 of the storage portion 12. It is stored in the storage unit 12. As a result, the front cover 10 can be attached to the base unit 20A without damaging both the contour 12a and the rotary dial 6. After the rotary dial 6 is stored in the storage portion 12, the width D2 of the pair of guide portions 15a and 15b and the width D1 of the opening portion 13 of the storage portion 12 return to their original widths. Further, since the guide portions 15a, 15b, and 28A are not exposed to the outside of the camera body 1 after assembly, there is no problem even if they are damaged during assembly.

  Example 2 will be described below. The present embodiment is different from the first embodiment in that a guide portion 28B is provided instead of the guide portion 28A, and is the same as the first embodiment in other points, and only the differences will be described. As shown in FIG. 6, the rotary dial 6 has a guide portion 28B for guiding the guide portions 15a and 15b. As in the first embodiment, the distance D2 between the guide portions 15a and 15b and the width D1 of the opening 13 are set smaller than the diameter D of the rotary dial 6. The distance D2 between the guide portions 15a and 15b is set smaller than the outer diameter D3 of the guide portion 28B of the rotary dial 6. Therefore, as described in FIG. 5, when the front cover 10 is assembled to the base unit 20B, the distance D2 between the guide portions 15a and 15b increases after the guide portions 15a and 15b come into contact with the guide portion 28B. The dimension D1 increases. Thereafter, the width D1 of the opening 13 becomes larger than the diameter D of the rotary dial 6 so that no interference occurs between the opening 13 and the rotary dial 6, and the rotary dial 6 does not contact the opening 13 of the storage portion 12. It is stored in the storage unit 12. As a result, the front cover 10 can be attached to the base unit 20B without damaging both the contour 12a and the rotary dial 6. After the rotary dial 6 is stored in the storage portion 12, the width D2 of the pair of guide portions 15a and 15b and the width D1 of the opening portion 13 of the storage portion 12 return to their original widths. Further, since the guide portions 15a, 15b, and 28B are not exposed to the outside of the camera body 1 after assembly, there is no problem even if they are damaged during assembly.

  According to the above-described embodiment, the guide portions 15a and 15b are widened by the guide portions 28A and 28B, so that the opening portion 13 of the storage portion 12 is widened, and both the opening portion 13 and the opening dial 12 are not damaged. The rotary dial 6 can be assembled. Thereby, the assemblability of the rotary dial 6 is improved and the rotary dial 6 and the front cover 10 can be prevented from being damaged.

1 is a partially exploded perspective view of a digital camera according to Embodiment 1. FIG. 1 is an external perspective view of a digital camera according to Embodiment 1. FIG. It is an expansion perspective view of the base unit shown in FIG. FIG. 2 is a top view of FIG. 1. It is an enlarged plan view for demonstrating the assembly operation | movement shown in FIG. It is an expansion perspective view of the base unit of Example 2. It is a fragmentary top view for demonstrating the conventional problem.

Explanation of symbols

1 Camera body 6 Mode dial (rotary dial)
9 Rear cover 10 Front cover 12 Storage part 13 Opening part 15a, 15b Guide part 20A, 20B Base unit 28A, 28B Guide part

Claims (3)

A base unit having a cylindrical operation member;
A cover that covers at least a portion of the base unit;
The cover is formed with a storage portion for storing the operation member by covering the periphery of the operation member by more than half a circumference, and a pair of first guide portions extending from the opening of the storage portion,
When the cover is assembled to the base unit, a second guide portion that contacts the first guide portion is formed on the outer side of the operation member.
When the cover is assembled to the base unit, the pair of first guide portions contact the second guide portion, the cover is elastically deformed, and the end of the opening does not contact the second guide portion. As described above, the outer diameter of the second guide part and the width of the pair of first guide parts are set.   After the base unit is housed in the housing, the first guide part is disposed on the inner side of one surface of the pair of covers so that the first guide part is not exposed to the outside. The electronic device according to claim 1. The electronic apparatus according to claim 1, wherein the second guide portion has a rib shape that covers the periphery of the operation member by a half or more.