JP2013101813A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mechanism for enabling an operator to constantly depress a switch when an operation is performed by depressing any position of a landscape key top, and for suppressing an inclination of an operation button in a depression operation of the key top to improve operability.SOLUTION: An electronic apparatus includes: an operation button 107 which is held so that a depression operation is possible to an exterior part 101d of an apparatus body; and an energization part 202 which energizes the operation button 107 in the opposite direction of the depression direction. The operation button has: a key top 201 which is formed as landscape; a depression shaft 201b which is projected from the center part of the key top 201; and a pair of slide shafts 201a which are projected from both end sides in the longitudinal direction of the key top 201, respectively. A position of the key top 201 in the short direction is regulated by a fact that the depression shaft 201b is inserted into a hole 101b, and a position of the key top 201 in the longitudinal direction is regulated by a fact that the slide shafts 201a are inserted into a hole 101a.

Description

  The present invention relates to an electronic device such as a digital camera.

  As electronic devices such as digital cameras become smaller and thinner, the operability is increased by increasing the area that the operator touches by horizontally extending the key top of the operation button such as the release button horizontally when viewed from the operator. There is something that has improved. However, when the key top of the operation button is formed horizontally, there is a problem that when the end portion in the longitudinal direction is pushed, the operation button is tilted and it is difficult to press a switch arranged under the operation button.

  Therefore, when a horizontally long key top is pressed, one side of the key top in the short direction is cantilevered by a supporting convex portion extending in parallel along the longitudinal direction of the key top, and the supporting convex portion is used as a fulcrum. A button structure in which the operation buttons are inclined has been proposed (Patent Document 1). In this proposal, the operator can always press the switch while tilting the operation button with the support convex portion as a fulcrum, regardless of the position of the key top pressed by the operator.

JP 2008-130530 A

  However, in the above-mentioned Patent Document 1, the key top cannot be pushed directly above or in the vicinity of the support convex portion, and the operation button always tilts in the short direction during the pushing operation, so that the operability is deteriorated.

  Therefore, the present invention can always press the switch regardless of the position of the horizontally long key top that the operator presses, and suppresses the inclination of the operation button when the key top is pressed. The purpose is to provide a mechanism that can be improved.

  In order to achieve the above object, the present invention comprises an operation button that is held so as to be able to be pressed against an exterior portion of a device body, and a biasing member that biases the operation button in a direction opposite to the pressing direction. The operation button includes a key top formed in a horizontally long shape, and a key top projecting from a center portion of the key top and inserted into a push shaft hole formed in the exterior portion. When a top is pressed, a push shaft for pressing a switch provided on the device main body and a pair of sliding shafts formed on the exterior portion and projecting from both ends in the longitudinal direction of the key top A pair of sliding shafts inserted into the holes, and the push shafts are inserted into the push shaft holes to regulate the position of the key tops in the short direction, and the pair of slides. A dynamic shaft is inserted into each of the pair of sliding shaft holes. Is the regulating the longitudinal position of the key top by the biasing member, characterized by biasing the pair of sliding shaft pressing direction opposite to the direction of the key top.

  According to the present invention, the operator can always press the switch regardless of the position of the horizontally long key top, and the inclination of the operation button at the time of pressing the key top is suppressed. Improvements can be made.

(A) is the perspective view which looked at the digital camera which is an example of the electronic device of this invention from the front side, (b) is the perspective view which looked at the digital camera shown to (a) from the back side. (A) is an exploded perspective view for demonstrating the attachment structure of a release button, (b) is the exploded perspective view seen from the downward direction of (a). It is the top view which looked at the part of the release button of a camera body from the upper part. FIG. 4 is a sectional view taken along line AA in FIG. 3. FIG. 4 is a sectional view taken along line BB in FIG. 3. It is CC sectional view taken on the line of FIG.

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1A is a perspective view of a digital camera as an example of the electronic apparatus of the present invention viewed from the front side (subject side), and FIG. 1B is a perspective view of the digital camera shown in FIG. FIG.

  As shown in FIG. 1, the digital camera of the present embodiment is provided with a lens barrel 102 and a strobe light emission window 103 on the front side of the camera body 101, and a release button 107 and a power button 106 on the upper surface. . Further, a display device 104 such as an LCD and a setting button group 105 for performing various settings are provided on the back surface of the camera body 101. Here, the camera body 101 corresponds to an example of an apparatus body of the present invention, and the release button 107 corresponds to an example of an operation button of the present invention.

  FIG. 2A is an exploded perspective view for explaining the mounting structure of the release button 107, and FIG. 2B is an exploded perspective view seen from below in FIG. 2A. 3 is a plan view of the release button 107 of the camera body 101 as viewed from above, FIG. 4 is a cross-sectional view taken along line AA in FIG. 3, FIG. 5 is a cross-sectional view taken along line BB in FIG. FIG. 4 is a cross-sectional view taken along line CC of FIG.

  As shown in FIG. 2, the release button 107 is held so that it can be pressed against the exterior portion 101 d of the camera body 101, and has a horizontally long keytop 201 that is long in the left-right direction when the camera body 101 is viewed from the front side. . A push shaft 201b protrudes from the center of the back surface side of the key top 201, and a pair of sliding shafts 201a project so as to sandwich the push shaft 201b between both ends of the back surface of the key top 201 in the longitudinal direction. It is installed. Further, on the back surface of the key top 201, there is a locking between the push shaft 201b and one slide shaft 201a of the pair of slide shafts 201a and between the push shaft 201b and the other slide shaft 201a, respectively. The protrusion 201c is provided so as to be spaced apart in the short direction of the key top 201.

  The exterior portion 101d of the camera body 101 has a push shaft hole 101b, a pair of slide shaft holes 101a, and a pair corresponding to the push shaft 201b, the pair of slide shafts 201a, and the pair of locking projections 201c. The locking projection holes 101c are respectively formed. In this embodiment, the push shaft hole 101b, the sliding shaft hole 101a, and the locking projection hole 101c each have a rectangular cross section.

  The locking projection 201c is locked in the locking projection hole 101c, thereby preventing the release button 107 from coming off from the camera body 101.

  Further, by inserting the push shaft 201b into the push shaft hole 101b, the position of the key top 201 in the short direction is determined by the inner wall surfaces 101b1 facing each other in the short direction of the key top 201 of the push shaft hole 101b. Is regulated. When the key top 201 is pushed, the push shaft 201b is guided in the axial direction by each inner wall surface 101b1 of the push shaft hole 101b (see FIGS. 5 and 6).

  By inserting the sliding shaft 201a into the sliding shaft hole 101a, the side away from the push shaft hole 101b of the inner wall surfaces facing each other in the longitudinal direction of the key top 201 of the sliding shaft hole 101a. The position of the key top 201 in the longitudinal direction is regulated by the inner wall surface 101a1. When the key top 201 is pressed, the sliding shaft 201a is guided in the axial direction by the inner wall surface 101a1 of the sliding shaft hole 101a (see FIGS. 4 and 6).

  A flexible printed circuit board 204 on which a release switch 205 is mounted is attached inside the camera body 101, and when the key top 201 of the release button 107 is pressed, the release switch 205 is pressed by the push shaft 201b.

  Further, a leaf spring-like urging member 202 is disposed between the flexible printed board 204 and the exterior portion 101d, and the urging member 202 is fastened to the exterior portion 101d with a screw 203 or the like. The urging member 202 includes a pair of arm portions 202c extending from the fastening portion 202b such as a screw 203 so as to be substantially symmetrical in the longitudinal direction of the key top 201, and the tip portions of the pair of arm portions 202c. A pair of pressing portions 202a is provided. The pair of pressing portions 202a press the pair of sliding shafts 201a, respectively.

  When the key top 201 of the release button 107 is pressed, the pair of sliding shafts 201a presses the pair of pressing portions 202a and elastically deforms the pair of arm portions 202c. The release button 107 is urged in the direction opposite to the pressing direction of the key top 201 by the restoring force of the pair of arm portions 202c.

  In this way, by urging both ends in the longitudinal direction of the key top 201 in the direction opposite to the pushing direction, the key top 201 is inclined in the longitudinal direction when the finger is released after the key top 201 is pushed. There is no. That is, the key top 201 becomes a vibration mode in which the key top 201 vibrates in the pushing direction or in the direction opposite to the pushing direction, and the damping of the vibration becomes faster.

  On the other hand, when the key top 201 is energized by a coil spring or the like, for example, when the finger is released after pressing the key top 201, the key top 201 is inclined in the longitudinal direction. At this time, a seesaw-type vibration mode is generated in the key top 201 with the central portion of the key top 201 as a fulcrum.

  Therefore, as in the present embodiment, by urging both ends in the longitudinal direction of the key top 201 in the direction opposite to the pressing direction, the key top 201 tilts when the finger is released after the key top 201 is pressed. Generation of vibration can be reduced. As a result, a good operational feeling can be given to the operator.

  Here, in this embodiment, the slide shaft 201a and the push shaft 201b are formed in a substantially cylindrical shape, and are axial directions with respect to the inner wall surface 101a1 of the slide shaft hole 101a and the inner wall surface 101b1 of the push shaft hole 101b, respectively. Line contact is made. Thus, when the key top 201 is pressed, the sliding shaft 201a and the pressing shaft 201b are always guided in line contact with the sliding shaft hole 101a and the pressing shaft hole 101b. Can be reduced and a smooth operation feeling can be obtained.

  In this case, by setting the distance L1 between the inner wall surfaces 101a1 of the pair of sliding shaft holes 101a as long as possible, the tilt of the release button 107 during the pressing operation of the key top 201 is reduced, and a smoother operation is performed. A feeling can be obtained.

  Also, the axial lengths of the sliding shaft hole 101a and the push shaft hole 101b are preferably set as long as possible in order to reduce the inclination of the release button 107 when the key top 201 is pressed.

  In the present embodiment, the axial length H2 of the push shaft hole 101b is made longer than the axial length H1 of the slide shaft hole 101a whose length is regulated by the urging member 202, and the tip of the push shaft 201b. Is arranged in the vicinity of the release switch 205.

  As described above, according to the present embodiment, the release button 107 can always be pressed regardless of the position of the horizontally long key top 201 pressed by the operator, and the release button when the key top 201 is pressed. The inclination of 107 can be suppressed. Thereby, a digital camera with improved operability of the release button 107 can be provided.

  The configuration of the present invention is not limited to that exemplified in the above embodiment, and the material, shape, dimensions, form, number, arrangement location, and the like can be changed as appropriate without departing from the scope of the present invention. It is.

101 Camera body 101a Slide shaft hole 101b Push shaft hole 101d Exterior portion 107 Release button 201 Key top 201a Slide shaft 201b Push shaft 202 Biasing member

Claims (3)

An electronic device comprising: an operation button that is held so as to be capable of being pressed against an exterior portion of the device body; and an urging member that urges the operation button in a direction opposite to the pushing direction.
The operation buttons are
A key top formed horizontally,
A push shaft that protrudes from the center of the key top, is inserted into a push shaft hole formed in the exterior portion, and depresses a switch provided in the device body when the key top is pressed. When,
A pair of sliding shafts that project from both ends in the longitudinal direction of the key top and are inserted into a pair of sliding shaft holes formed in the exterior part,
The push shaft is inserted into the push shaft hole to regulate the position of the key top in the short direction,
The pair of sliding shafts are respectively inserted into the pair of sliding shaft holes to regulate the longitudinal position of the key top,
The electronic device according to claim 1, wherein the biasing member biases the pair of sliding shafts in a direction opposite to a pressing direction of the key top.   2. The push shaft and the sliding shaft are in line contact with each other in an axial direction with respect to an inner wall surface of the push shaft hole and an inner wall surface of the sliding shaft hole, respectively. Electronic equipment.   3. The electronic device according to claim 1, wherein an axial length of the push shaft hole is set longer than an axial length of the sliding shaft hole. 4.