JP2018181621A - Depression switch device, and electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a depression switch device in which rattling and tilt of depression button member can be restrained, without adding components.SOLUTION: A depression switch device connected with multiple operation buttons includes a fixing member having a holding part, a depression button member in which a depressible operation button, an engagement part engaging with the holding part of the fixing member, a pushing shaft, and a support arm for connecting the operation button and the engagement part are formed, a receiving member being fixed to the fixing member while holding the depression button member with the fixing member, and a switch fixed to the receiving member. The support arm is connected with the operation button by multiple connections, and has multiple protrusions for energizing the fixing member, and the multiple protrusions are placed between the multiple connections, and when the multiple protrusions are energized to the fixing member, fixed to the fixing member while the pushing shaft is in contact with the switch.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pressing switch device provided in an electronic device such as, for example, a digital camera or a digital video camera, and an electronic device including the pressing switch device.

  2. Description of the Related Art Hitherto, there has been proposed a press-type switch device which suppresses rattling and tilting of an operation button portion of a press button member.

  Patent Document 1 discloses a technology in which a support arm that supports an operation button portion has a convex portion that is in contact with a fixing surface, and the inclination of the operation button portion is suppressed.

  According to Patent Document 2, the support arm has a convex portion in contact with the receiving member of the pressing button member, and the receiving member is fixed to the exterior cover in a state where the supporting arm is elastically deformed. There is disclosed a technique for suppressing the clinging.

Unexamined-Japanese-Patent No. 2010-33894 JP, 2013-182665, A

  However, in the prior art disclosed in the above-mentioned patent documents, when a dimensional error in the pressing button member or a dimensional error in the mounting position occurs, a gap is generated between the pressing button member and the switch. When pressing the key, rattling occurs.

  Then, the objective of this invention is providing the press-type switch apparatus which made it possible to suppress a rattling and inclination of a press button member, without adding components.

In order to achieve the above object, a pressing switch device according to the present invention is
In a pressing switch device in which a plurality of operation button parts are connected,
A fixing member having a holding portion;
A pressing button member having an operation button portion capable of pressing operation, an engaging portion engaged with the holding portion of the fixing member, a pushing shaft, and a support arm connecting the operation button portion and the engaging portion ,
A receiving member fixed to the fixing member in a state in which the pressing button member is held between the fixing member and the fixing member;
A switch unit fixed to the receiving member;
The support arm is connected to the operation button portion by a plurality of connection portions, and has a plurality of convex portions that bias the fixing member,
The plurality of convex portions are disposed between the plurality of connection portions,
The plurality of convex portions are biased by the fixing member, whereby the push shaft is fixed to the fixing member in a state of being in contact with the switch portion.

  According to the present invention, it is possible to provide a pressing switch device capable of suppressing rattling and tilting of the pressing button member without adding components.

It is an exploded perspective view of a pressing switch device attached to a digital camera which is an example of the embodiment of the electronic device of the present invention. It is a disassembled perspective view of the press type switch apparatus which looked at FIG. 1 from the back side upside down.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

  FIG. 1 is an exploded perspective view of a press-type switch device attached to a digital camera which is an example of the embodiment of the electronic device of the present invention, and FIG. 2 is an exploded perspective view of the press-type switch device when FIG. .

  As shown in FIG. 1 and FIG. 2, the press-type switch device of this embodiment is attached to the exterior cover 1 of the camera body of the digital camera. The exterior cover 1 is a resin molded product in the present embodiment. Two openings 11 are formed in the exterior cover 1. Here, the exterior cover 1 corresponds to the fixing member of the present invention.

  The press button member 2 includes two operation button portions 21 a and 21 b integrally formed of resin or the like, and the operation button portions 21 a and 21 b are assembled to the opening 11 of the exterior cover 1 so as to be pressed. The flexible printed circuit board 3 is mounted such that the switch portion 31 formed of a resilient dome-shaped metal plate is substantially opposed to the push shaft 22 of the operation button portions 21a and 21b. The flexible printed board 3 is fixed to the receiving member 4 via a double-sided tape or the like. When the operation button portions 21a and 21b are pressed, the switch portion 31 is pressed by the push shaft 22, and a detection signal is output from the switch portion 31 to the switch signal processing circuit to perform predetermined signal processing.

  In the receiving member 4, two positioning holes 41 are formed, and the holes 41 are respectively fitted in two bosses 12 formed in the exterior cover 1. Further, screw insertion holes 42 of the receiving member 4 are formed corresponding to the screw holes 13 formed in the exterior cover 1. Then, by inserting the hole 41 of the receiving member 4 into the boss 12 of the exterior cover 1, the receiving member 4 is positioned with respect to the exterior cover 1. In this state, the screw 5 inserted into the screw insertion hole 42 of the receiving member 4 is screwed into the screw hole 13 of the exterior cover 1 so that the pressing button member 2 is held between the receiving member 4 and the exterior cover 1 It is fixed to the exterior cover 1.

  Next, the configuration of the press button member 2 will be described in detail. In the press button member 2, a support arm 23 is formed around the two operation button portions 21 a and 21 b. The support arm 23 is disposed at a position substantially apart from the shape of the operation button portions 21a and 21b by a substantially constant distance. The two operation button portions 21a and 21b are connected to the support arm 23 by two connection portions 24a and 24b respectively disposed at positions substantially opposed to the operation button portions 21a and 21b. Here, the cross-sectional areas of the connection portions 24 a and 24 b are smaller than the cross-sectional area of the support arm 23.

  A first convex portion 25 a is formed on the exterior cover 1 side between the two connecting portions 24 a of the support arm 23. Similarly, a first convex portion 25 b is formed on the exterior cover 1 side between the two connecting portions 24 b of the support arm 23. Further, two second convex portions 26 are formed on the flexible printed circuit 3 side between the first convex portion 21 a and the first convex portion 25 b. The third convex portion 27 is formed on the exterior cover 1 side between the two second convex portions 26. The engaging portion 28 is formed on the inner side of the third convex portion 27 and is engaged with the holding portion 15 of the exterior cover 1 to determine the position of the pressing button member 2.

  The first convex portions 25 a and 25 b are biased by the rib portion 14 of the exterior cover 1 in a state where the receiving member 4 is fixed to the exterior cover 1. As a result, the push shaft 22 of the push button member 2 is always in contact with the switch portion 31 of the flexible printed circuit board 3, and rattling of the operation button portions 21a and 21b in the pressing operation direction can be prevented. Here, since the first convex portions 25a and 25b are disposed between the connection portions 24a and 24b, respectively, the operation is performed by urging the first convex portions 25a and 25b to the rib portion of the exterior cover 1 It is possible to suppress the button portions 21a and 21b from being inclined.

  The second convex portion 26 is biased to the flexible printed circuit board 3, and the third convex portion 27 is biased to the exterior cover 1. Thus, even when the support arm 23 is elastically deformed when one of the operation button portions 21a and 21b is pressed, transmission of the deformation to the other operation button portion can be suppressed. Further, as described above, when the cross-sectional areas of the connection portions 24a and 24b are smaller than the cross-sectional area of the support arm 23, when the operation button portions 21a and 21b are pressed, the connection portions 24a and 24b absorb elastic deformation. The elastic deformation of the support arm 23 can be suppressed. As described above, when one of the operation button portions 21a and 21b is pressed, the other can be prevented from moving in conjunction.

  Further, since the operation button portions 21a and 21b are connected to the support arm 23 by the connection portions 24a and 24b at positions substantially opposed to the operation button portions 21a and 21b, when the operation button portions 21a and 21b are pressed and operated. In addition, tilting of the operation button portions 21a and 21b can be suppressed.

  As described above, in the present embodiment, it is possible to provide a press-type switch device capable of suppressing rattling and tilting of the operation button portion without adding components.

  As mentioned above, although the preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary.

1 Exterior cover (fixed member), 15 holding parts, 2 pressing button members,
21a, 21b operation button part, 22 push shaft, 23 support arm,
24a, 24b connection portion, 25a, 25b first convex portion, 26 second convex portion,
27 third convex portion, 28 engagement portion, 31 switch portion, 4 receiving member

Claims (2)

In a pressing switch device in which a plurality of operation button parts are connected,
A fixing member having a holding portion;
A pressing button member having an operation button portion capable of pressing operation, an engaging portion engaged with the holding portion of the fixing member, a pushing shaft, and a support arm connecting the operation button portion and the engaging portion ,
A receiving member fixed to the fixing member in a state in which the pressing button member is held between the fixing member and the fixing member;
A switch unit fixed to the receiving member;
The support arm is connected to the operation button portion by a plurality of connection portions, and has a plurality of convex portions that bias the fixing member,
The plurality of convex portions are disposed between the plurality of connection portions,
The pressing switch device is fixed to the fixing member in a state where the pushing shaft is in contact with the switch portion by urging the plurality of convex portions to the fixing member. The pressing button member has, between the plurality of operation button portions, a plurality of convex portions different from the plurality of convex portions disposed between the plurality of connecting portions,
The plurality of connection portions are disposed at positions facing the plurality of operation button portions, respectively.
The press-type switch device according to claim 1, wherein a cross-sectional area of the plurality of connection portions is smaller than a cross-sectional area of the support arm.