JP2018189861A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus which has a body housing formed by integrally molding an elastic member and a resin material, and thereby facilitates adjustment of operational feeling of an operation member without addition of a component such as a buffer material, and can attenuate a vibration sound in an early stage.SOLUTION: An electronic apparatus has such a structure that a body housing formed by integrally molding an elastic member and a resin material, an operation member having a body part operated by pressing, a fixed part and an arm part having such elasticity as to connect the fixed part and the body part, an electronic circuit board on which a switch is installed, and a first reception part in which a part of the elastic member of the outer cover is provided inside of the outer cover, are brought into contact with each other in a range from a substantial intermediate position of the arm part to the operation member body part side during operation of the operation member, and receive vibration.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an electronic apparatus such as a digital camera or a digital video camera, and more particularly to an imaging apparatus having an operation member such as a push button.

  Conventionally, some digital cameras have a grip on the front side of the main body, a convex portion is provided at the upper end on the back side, and a space for placing a thumb made of an elastic member such as rubber is provided near the convex portion. There is. When the user grips the grip with his / her hand, the space for placing the thumb on the back side is made of an elastic member, so that it functions as an anti-slip and can more securely grip the digital camera body. Furthermore, since the thumb is caught on the convex portion, it prevents the digital camera body from being accidentally dropped. In addition, there is a button that is arranged on the above-described convex portion so that the user can operate by slightly moving the thumb holding the digital camera body in the vicinity of the convex portion while looking through the viewfinder. For example, there is a so-called AE lock function in which the exposure is fixed by pressing a button in a state where the subject is in focus, and shooting can be performed with the fixed exposure even if the composition is changed thereafter.

  However, since the convex portions as described above are provided at the end portions, the width is narrow, and when a button is arranged on this convex portion, there is not enough space to arrange the switch member inside, so there is an internal space with an arrangement space. The switch member is arranged at the place where the position is lowered. For this reason, the distance between the button surface and the switch member is increased compared to buttons provided on other non-convex surfaces, so that the buttons become tall and the weight of the buttons tends to increase.

  In addition, when the button is held by the elastic force of an arm such as resin, after pressing the button, the button tries to return to the state before the operation. Therefore, the user may recognize it as a sound and feel uncomfortable. Further, when the weight of the button is increased, the time for the vibration to decay is longer, and the sound recognized by the user may be heard longer.

  In order to prevent the user from feeling uncomfortable the sound at the time of operating the button, there has been proposed one that suppresses the sound by using an engaging portion for preventing the button from coming off as a cushioning material (Patent Document 1). . In this proposal, in order to prevent the button from deviating, there is a holding means having a locking portion that is urged in a direction opposite to the pressing direction, and the holding means is a buffer member. For this reason, after the pressing is released, the locking portion of the button hits the buffer member, so that vibration is suppressed.

  Further, the elastically deforming part is deformed so that the push button part that presses the switch, the sheet member covers the surface of the push button part, and a buffer member is provided between the sheet member and the push button part so as to suppress the sound Has been proposed (Patent Document 2). In this proposal, the push button portion itself is held by the elastic deformation portion, and further, since there is a buffer member, vibration after the push-in operation can be suppressed.

JP 2008-226599 A JP 2011-233464 A

  However, in the above-mentioned patent document 1, in order to suppress vibration noise, a holding means made of a buffer member is added, and it is necessary to insert a locking portion when the push button is assembled. In Patent Document 2, the only way to adjust the operational feeling of the push button is to increase or decrease the thickness of the elastic deformation portion holding the push button portion. Such a direction is difficult to predict, and the inclination of the push button must be taken into consideration. Therefore, it is difficult to adjust easily. Further, it is more difficult to assemble, such as sandwiching the buffer member between the push button portion and the sheet member.

  An object of the present invention is to provide an imaging apparatus that can easily adjust the operational feeling of an operating member without adding a buffer member and accelerates attenuation of vibration sound.

In order to achieve the above object, an imaging apparatus according to the present invention includes:
A main body exterior integrally formed of an elastic member and a resin material; a main body portion to be pressed; a fixing portion; an operation member having an elastic arm portion connecting the fixing portion and the main body portion; and a switch. The electronic circuit board that is installed and the first receiving part in which a part of the elastic member of the exterior cover is provided inside the exterior cover are, when the operation member is operated, the operation member main body from a substantially intermediate position of the arm part. It is the structure which contact | abuts in the range of a part side, and receives a vibration.

  According to the present invention, by having a main body exterior integrally molded with an elastic member and a resin material, it is easy to adjust the operational feeling of the operation member without adding parts such as cushioning materials, and vibration sound can be generated early. An imaging device that can be attenuated can be provided.

1 is an external perspective view of an imaging apparatus as an electronic apparatus according to the invention. It is a disassembled perspective view of an operation member. It is an operation member front view. It is sectional drawing of an operation member. It is a partial front view from the straight direction of an operation member main-body part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1A and FIG. 1B are a perspective view of an imaging apparatus 1 as an example of the present embodiment as seen from the front side and a perspective view as seen from the back side.

  As shown in FIG. 1A, the imaging apparatus 1 of the present embodiment is provided with a lens unit 2 that forms a subject image on the front side, and the formed subject image is electronic data by an imaging element (not shown). Is converted to An imaging device in which a CPU (not shown) mounted on a control board (not shown) stores the converted electronic data in a memory (not shown) and displays a subject image being imaged on the display unit 7 described later. As various controls. In addition, a grip 5 is provided on the right front portion of the image pickup apparatus 1, and the user can firmly hold the image pickup apparatus 1 by gripping the grip 5, thereby preventing inadvertent dropping. ing. A release button 2 is provided on the upper surface of the imaging apparatus 1 to start a shooting operation when operated. Furthermore, a mode dial 6 is provided which can be switched between shooting modes such as aperture value priority automatic exposure mode, shutter speed priority automatic exposure mode, manual exposure mode in which the user sets the aperture value and shutter speed, and moving image shooting mode by rotating. It has been.

  As shown in FIG. 1 (b), an operation that allows a function assigned to each of the functions to be called, such as a menu screen or switching to a playback mode, can be called by pressing on the back side of the imaging apparatus 1, for example. A button 8 is provided. Next to that, a display unit 7 is provided, and displays the menu screen, the image in the playback mode, and various other information. When the menu screen is selected by the operation button 8 and each item of the menu is displayed on the display unit 7, an annular direction button 9 is provided to enable selection of each item. In addition, a determination button 10 for executing the selected item is provided inside. A finder 11 is arranged on the central upper surface, and the user can take a picture while looking through the window of the finder 11.

  A rear side gripping member 12 is provided at the upper part on the rear side of the grip 5 provided on the front side, and includes a rear side gripping part 12a and a convex part 12b. The back side holding member 12 is configured by integral molding of an elastic member and a resin such as PC, and in particular, the surface of the back side holding portion 12a is an elastic member 12c described later. Since the elastic member 12c has elasticity, when the finger is placed on the back surface side holding member 12a, the friction is high and the slip is difficult. Therefore, the user can grip the grip 5 and place the thumb on the elastic member 12c of the back-side gripping member 12a so that the user can hold the grip more firmly, and the thumb is caught on the convex portion 12b. As a result, the fall prevention effect is improved. An operation button 13 is provided on the convex portion 12b and can be operated by slightly moving the thumb placed on the back side gripping portion 12a, so that the user can operate while looking through the viewfinder 11. can do.

  FIG. 2 is an exploded perspective view of the periphery of the back-side gripping member 12 on the back side of the imaging device 1 of FIG. FIG. 3 is a front view of the operation button 13.

  In FIG. 2, a configuration related to the back side holding member 12 will be described. A recess 14 a is provided in the back cover 14, which is the back side of the exterior cover 4, and the back side holding member 12 is fitted. The operation button 13 is held inside the back side holding member 12 by an adhesive or the like. The switch member 15a is made of a dome-shaped sheet metal, and is attached to the operation flexible board 15 on which the contact pattern for the switch member is wired. When the switch member 15a is pressed, the dome-shaped sheet metal is reversed and comes into contact with a contact pattern provided on the operation flexible board 15, so that a current can be conducted. The operation flexible board 15 in which the switch member 15 a is disposed is attached to the holding metal plate 16, and the holding metal plate 16 sandwiches the operation button 13 between the back side holding member 12 and the back cover 14. It is fixed by screwing or the like. The operation flexible board 15 is electrically connected to the control board (not shown) by a connector or the like.

  In FIG. 3, the configuration of the operation button 13 will be described.

  The operation button 13 is made of a resin material, and the two main body portions 13c are integrated by fixing portions 13a via arm portions 13b, respectively, and positioning holes 13e are provided in the fixing portion 13a. Since the fixed portion 13a is fixedly held, each of the main body portions 13c can be cantilevered by the elastic force of each of the arm portions 13b. Therefore, the operational feeling of the operation button 13 can be easily changed by changing the width and thickness of the arm portion 13b.

  FIG. 4 is a cross-sectional view of the operation button 13 from the center portion of the main body portion 13c to the arm portion 13b, and shows a non-operation state.

  Details of this embodiment will be described with reference to FIG.

  The back-side gripping member 12 has an elastic member 12c covering the surface of the back-side gripping part 12a, and a PC part 12d made of a resin material PC is formed by integral molding on the inside, and the convex part The PC portion 12d is exposed around the main body portion 13c of the operation button 13, which is a part of 12b. As the elastic member 12c, an elastic member such as an elastomer that can be integrally formed is conceivable.

  In this embodiment, the back-side gripping member 12 is an integrally molded product of the elastic member 12c and the PC portion 12d. However, the PC portion 12d may be a resin other than PC, for example, a resin such as ABS. Good.

  The PC portion 12d of the convex portion 12b is provided with a through hole 12h through which the main body portion 13c of the operation button 13 can be inserted. Since the through hole 12h is provided in the PC portion 12d instead of the elastic member 12c, the operation button can be operated without being caught in the through hole 12h. And the 1st receiving part 12e of the projection shape by which the said elastic member 12c was extended inward was penetrated through a part of said PC part 12d.

  Further, a positioning pin 12g is provided from the PC portion 12d, the positioning hole 13e of the operation button 13 is fitted into the positioning pin 12g, and the fixing portion 13a is held and fixed to the back side holding member 12 by an adhesive or the like. Is done. The operation button 13 has a main body portion 13c inserted through the through hole 12h and is held so as to be able to be pressed through the arm portion 13b. A button convex portion 13d is provided on the bottom surface portion of the main body portion 13c. It has been.

  The holding metal plate 16 to which the operation flexible 15 is attached is fixed to the back side holding member 12 with a screw (not shown) with the operation button 13 in between, and the switch portion 15a is connected to the operation button. It arrange | positions so that it may come under 13 said button convex parts 13d. Therefore, when the user depresses the main body portion 13c of the operation button 13, the button convex portion 13d can push the switch portion 15a.

  When the switch portion 15a is pushed in, the dome-shaped sheet metal comes into contact with the pattern on the operation flexible board, and an electric signal flows to the control board (not shown) through the operation flexible board 15, and on the control board (not shown). The CPU determines that the switch is ON. When the user releases his / her finger from the main body portion 13c of the operation button 13, the reversing force of the switch member 15a and the elastic force of the arm portion 13b are opposite to the pressing direction with the fixing portion 13a as a fulcrum. The main body 13c is flipped up in the direction. Then, the main body portion 13c tends to move in a direction of jumping out from the through hole 12h of the back side holding member 12 rather than the non-operating state. Further, since the main body portion 13c is cantilevered by the arm portion 13b, the arm portion 13b and the main body portion 13c move up and down with the fixing portion 13a as a fulcrum by the elastic force of the arm portion 13b. The vibration will repeat.

  Here, the range A is a range from a substantially middle portion of the arm portion 13b of the operation button 13 to the main body portion 13c. Then, as described above, the main body portion 13c tries to move in the direction of jumping out from the through hole 12h. The first receiving portion 12e of the back-side gripping member 12 is within the range A in the arm portion 13b. Arranged to receive.

  Accordingly, since the first receiving portion 12e is a part of the elastic member 12c, the vibration after the operation button 13 is pressed is absorbed, and compared with the case where the first receiving portion 12e is not provided. Thus, the time for the vibration to attenuate is shortened. That is, the vibration sound is shortened and the user does not feel uncomfortable. Further, since the fixed portion 13a serves as a fulcrum for vibration, the first receiving portion 12e receives the range A, so that the main body portion is received rather than the arm portion 13b receiving the fixed portion 13a side. There is an effect of further damping the vibration of 13c. In particular, when the elastic member 12c is made of an elastic material having viscoelasticity, an effect of damping vibration can be obtained.

  5 (a) and 5 (b) are front views of the operation button 13 from the button pressing direction of the main body 13c, and the operation button 13 receives the first receiving member of the rear side gripping member 12. FIG. Only the part 12e and a second receiving part 12f to be described later are projected.

  In FIG. 5A, the first receiving portion 12 d described above receives the arm portion 13 b in the range A. And the flange part 13f which becomes the convex shape to the radial direction is provided in the bottom face side outer periphery of the said main-body part 13c of the said operation button 13, and the 2nd receiving part 12f is projected and arrange | positioned on the said flange part 13f The operation button 13 is arranged so as to come into contact when the operation button 13 vibrates. The center line B is a center line passing through the approximate center of the main body 13c of the operation button 13 and parallel to the direction in which the arm 13b is connected to the main body 13c, and the center line C is the center line C. The center line passes through the approximate center of the main body 13c and is substantially orthogonal to the center line B. The range D is a side where the arm portion 13b is not connected to the main body portion 13c from the center line C, and the second receiving portion 12f is disposed within this range.

  In the present embodiment, the second receiving portion 12f is disposed on the center line B within the range D. Therefore, it is possible to receive a place where the vibration of the main body portion 13c is the largest on the opposite side of the connecting portion of the arm portion 13b to the main body portion 13c. Thereby, the vibration of the arm portion 13b can be received by the first receiving portion 12d, and the vibration of the main body portion 13c can be effectively received by the second receiving portion 12f.

  Further, as an example of the present embodiment, in FIG. 5B, the second receiving portions are arranged at two locations so as to be substantially line symmetric with respect to the center line B within the range D. Therefore, when the second receiving portion 12f receives the vibration of the operation button 13, the main body portion 13c of the operation button 13 is inclined and collides with the wall surface of the through-hole 12h of the back side holding member 12. Therefore, it is possible to suppress the occurrence of collision sound other than vibration sound.

  In the present embodiment, the operation buttons provided on the back-side holding member have been described, but the present invention can also be applied to operation buttons provided on an elastic cover and an integrally formed exterior cover made of resin or the like.

1 imaging device, 2 lens part, 3 release button, 4 exterior cover,
5 grip, 6 mode dial, 7 display, 8 operation buttons,
9 Direction buttons, 10 Enter button, 11 Viewfinder, 12 Back side gripping member,
12a rear side gripping part, 12b convex part, 12c elastic part, 12d PC part,
12e 1st receiving part, 12f 2nd receiving part, 12g locating pin,
12h Through-hole, 13 operation buttons, 13a fixing part, 13b arm part,
13c body part, 13d button convex part, 13e positioning hole, 13f flange part,
14 back cover, 14a recess, 15 operation flexible, 15a switch member,
16 Holding sheet metal, A Range from the middle of the arm part to the body part,
B operation button arm center line parallel to the connecting direction,
C Center line orthogonal to operation button arm connection direction, D Second receiving portion arrangement range

Claims (7)

A body exterior integrally molded with an elastic member and a resin material;
An operation member having a main body portion to be pressed, a fixing portion, and an arm portion having elasticity that connects the fixing portion and the main body portion,
An electronic circuit board on which the switch is installed;
The first receiving portion in which a part of the elastic member of the exterior cover is provided inside the exterior cover abuts in the range from the intermediate position of the arm portion to the operation member main body when the operation member is operated, and vibrates. An imaging device characterized by being configured to receive the light.   The imaging apparatus according to claim 1, wherein the first receiving portion is in contact with the arm portion in a holding state where the operation member is not operated. A flange portion is provided on the main body of the operation member,
A second receiving portion is provided on the elastic member;
The imaging apparatus according to claim 1, wherein the second receiving portion receives the flange portion during vibration after the operation member is operated.   The flange portion is positioned in a range perpendicular to the connecting direction of the arm portion to the main body portion of the operation member and opposite to the arm connecting portion from a center line passing through the center of the button main body portion. The imaging device according to claim 3, wherein the receiving unit receives the second receiving unit.   The second receiving portion is perpendicular to the connecting direction of the arm portion to the main body portion of the operation member, and is opposite to the arm connecting portion from a center line passing through the center of the button main body portion. The two flange portions are received by being arranged two symmetrically with respect to a center line passing through the center of the button main body portion in the connecting direction of the arm portion, and receiving the flange portion. Imaging device.   The imaging apparatus according to claim 1, wherein the exterior cover is a gripping member.   7. The gripping member according to claim 1, further comprising: a convex portion that protrudes from an appearance surface of the imaging apparatus; and the operation member is disposed on the convex portion. The imaging device according to any one of the above.