JP6429592B2 - Push button device - Google Patents

Description

  The present invention relates to a push button device including a pressed member and a switch member.

  For example, as disclosed in JP-A-3-11510, a push button device used in an electronic device includes a pressed member that transmits a pressing force applied by a human finger or the like to a switch member that is an electronic component. There are things with different configurations. In the push button device, it is preferable that the switch member is reliably operated regardless of which part of the pressed member is pressed. Therefore, for example, a push button device disclosed in Japanese Patent Laid-Open No. 3-11510 has a configuration for guiding a member to be pressed so as to move only in the pressing direction.

JP-A-3-11510

  However, the configuration for guiding the pressed member in the pressing direction as disclosed in Japanese Patent Laid-Open No. 3-11510 increases the thickness of the switch member and hinders downsizing of the push button device.

  The present invention has been made in view of the above-described points, and an object of the present invention is to provide a small push button device that can perform a reliable operation even if the pressed member has a large area.

A push button device according to an aspect of the present invention includes a switch member that is operated by being pressed with a predetermined force in a pressing direction along a predetermined first axis, and is orthogonal to the first axis and opposite to the pressing direction. comprising a pair of flat portions facing the, base portion for supporting the switch member, said plate-shaped member at a inner surface is the switch the direction along the second axis and a longitudinal direction orthogonal to the first axis A plate-like portion facing the member; a shaft-like portion projecting from the central portion of the inner surface of the plate-like portion toward the switch member along the first axis; and the second axis of the inner surface of the plate-like portion. the pressing member a opposite ends comprising a leg portion of a pair which is provided in a position respectively opposite to the pair of flat portions along the prevented from falling off from the base portion of the pressing member locking portion of, one each provided on the pair of legs and the other of the planar portion Serial respectively provided on one and the corresponding position, the first guide portion to which the pair of legs for guiding the pair of legs so that only displaced in a direction along the second axis relative to the flat portion, and Provided between the inner surface of the plate-like portion and the base portion, allowing the shaft-like portion to be displaced in the direction along the first axis with respect to the base portion, and the base of the shaft-like portion. A second guide part for preventing displacement in a direction along the second axis with respect to the base part, and when the pressing force is applied to the pressed member, the plate-like part is elastically deformed, Each of the pair of leg portions is displaced only in the direction along the second axis while being in sliding contact with the corresponding flat portion with respect to the shaft-like portion .

  ADVANTAGE OF THE INVENTION According to this invention, the small pushbutton apparatus which can perform a reliable operation | movement even if the area of a to-be-pressed member is large is realizable.

It is the perspective view which looked at the imaging device provided with the pushbutton device from the front. It is the perspective view which looked at the imaging device provided with the pushbutton device from back. It is a disassembled perspective view of an imaging device. It is a disassembled perspective view of a pushbutton device. It is the perspective view seen from the inner surface side of the to-be-pressed member. It is VI-VI sectional drawing of FIG. It is VII-VII sectional drawing of FIG.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the drawings used for the following description, the scale of each component is made different in order to make each component recognizable on the drawing. It is not limited only to the quantity of the component described in (1), the shape of the component, the ratio of the size of the component, and the relative positional relationship of each component.

  First, the configuration of the imaging device 1 including the push button device 20 according to the present invention will be described. As shown in FIGS. 1, 2, and 3, the imaging apparatus 1 of the present embodiment includes an imaging element 3 such as a CCD or a CMOS image sensor in a main body 2.

  The outer surface of the main body 2 includes at least part of a convex surface portion 2a that is a smooth curved surface convex outward. A push button device 20 which is a release switch, which will be described later, is disposed on the convex surface portion 2a. When the push button device 20 is pressed by the user, the imaging device 1 executes a predetermined imaging operation.

  In the present embodiment, as an example, the main body 2 has a substantially cylindrical outer shape with a straight line perpendicular to the light receiving surface of the image sensor 3 as a central axis. The diameter of the main body 2 is a size that can be grasped by a human hand. The convex surface portion 2a in the present embodiment is an outer peripheral surface around the central axis of the main body 2 having a substantially cylindrical shape. That is, the shape of the convex surface portion 2a is a substantially cylindrical surface shape.

  In addition, the shape of the convex surface part 2a is not restricted to this embodiment. For example, the convex surface portion 2a may have a convex shape toward another outward direction such as an elliptical surface, a parabolic surface, or a spherical surface. Moreover, the external shape of the main body 2 is not limited to this embodiment, and may be any shape that includes the convex surface portion 2a as a part.

  In the imaging device 1, the light receiving surface of the imaging element 3 faces one side along the central axis of the main body 2 having a substantially cylindrical shape. In this embodiment, as an example, the imaging apparatus 1 has a so-called interchangeable lens configuration in which a lens apparatus for forming a subject image on the light receiving surface of the imaging element 3 is configured to be separable from the main body 2. . The imaging device 1 may be a so-called lens-integrated form in which the lens device cannot be separated from the main body 2.

  As shown in FIG. 1, a lens mounting portion 4 is provided at one end portion 2 b along the central axis of the main body 2. In this embodiment, the lens mounting portion 4 includes an engagement mechanism generally called a bayonet mount as an example, and the lens device can be separated. In a state where the lens device is mounted on the lens mounting portion 4, the optical axis of the lens device and the central axis of the main body 2 may be substantially parallel, or both may be aligned. In the present embodiment, the latter is the latter. In addition, the structure which enables separation | separation of the lens mounting part 4 and a lens apparatus is not restricted to this embodiment, For example, the structure generally called a screw-type mount using a screw mechanism may be sufficient, for example, The structure which enables separation | separation of both using fitting, a magnet, etc. may be sufficient.

  As shown in FIG. 2, an external device mounting portion 5 is provided at the other end portion 2 c along the central axis of the main body 2. The external device mounting unit 5 has a mechanism that enables, for example, a mobile communication terminal equipped with an image display device to be attached to and detached from the main body 2. In this embodiment, as an example, the external device mounting portion 5 includes an engagement mechanism that is generally called a bayonet type. For example, as shown in FIG. 2, a plurality of partial circumferential recesses 5a are provided in a part of the outer periphery of the other end 2c in the circumferential direction, and the engaging claws 5b are provided in a part of the partial circumferential recess 5a. Provided. Note that the imaging device 1 may not include the external device mounting unit 5.

  As shown in FIG. 3, an image sensor 3 and a battery 6 are disposed in the main body 2. The battery 6 of this embodiment is a secondary battery. Note that the imaging apparatus 1 may be configured to operate by supplying power from an external apparatus and not include the battery 6. Although not shown, the main body 2 includes a calculation device (CPU), a storage device (RAM), an input / output device, a power control device, and the like, and controls the operation of the imaging device 1 based on a predetermined program. A substrate is disposed. In the main body 2, a connector for mounting a storage medium such as a flash memory card for storing an image picked up by the image pickup apparatus 1 is disposed.

  As shown in FIG. 3, in this embodiment, the main body 2 includes a main frame 2d and other members such as a push button device 20, an image sensor 3, a lens mounting portion 4, an external device mounting portion 5, and a battery 6. It is composed by assembling. The outer peripheral surface of the main body 2 is covered with a substantially cylindrical cover 7.

  Next, the configuration of the push button device 20 according to the present invention will be described. As shown in FIG. 4, the push button device 20 includes a base portion 21, a pressed member 22, and a switch member 23.

  The base portion 21 is a member that is disposed inside the cover 7 and is fixed to the main frame 2d. The base portion 21 is provided with a screw hole 21e into which a screw 29 inserted through a through hole 2e provided in the main frame 2d is screwed, and is fixed to the main frame 2d by the screw 29.

  Each member constituting the push button device 20 is held by the base portion 21. That is, in the present embodiment, the push button device 20 can be separated from the main frame 2d as one of a plurality of units constituting the imaging device 1. By setting it as such a structure, the assembly process of the imaging device 1 can be simplified. The base 21 may be a part of the main frame 2d and cannot be separated from the main frame 2d.

  As described above, the push button device 20 according to the present embodiment is provided as a release switch in the imaging device 1, and the pressed member 22 that is movable with respect to the base portion 21 is a convex portion of the main body 2. 2a is disposed so as to be exposed. Specifically, the pressed member 22 is exposed to the outside of the convex surface portion 2 a through the through hole 7 a provided in the region of the convex surface portion 2 a of the cover 7. A switch member 23 is disposed inside the pressed member 22.

  The switch member 23 is an electronic component having a form such as a tactile switch or a push switch that is electrically connected to the control board of the imaging apparatus 1. The position of the switch member 23 is fixed with respect to the base portion 21, and the switch member 23 operates by being pressed in a pressing direction along a predetermined first axis. Hereinafter, the first axis is referred to as the Z axis.

  In the present embodiment, as an example, the switch member 23 is mounted on a circuit board 24, and the circuit board 24 is fixed to the base portion 21 via a substrate holding portion (substrate holding stand) 27 described later. . The switch member 23 is electrically connected to the control board via the circuit board 24. The control board detects whether the switch member 23 is in the on state or the off state, and controls the imaging operation of the imaging device 1.

  The switch member 23 is disposed at a position where the pressing direction is substantially orthogonal to the outer surface of the convex surface portion 2a. In the present embodiment, since the convex surface portion 2a has a substantially cylindrical surface shape, the pressing direction for operating the switch member 23 is the radially inner side of the substantially cylindrical surface.

  The push button device 20 is configured to transmit this force to the switch member 23 when a force is applied to the pressed member 22 toward the inside of the convex surface portion 2a. When the switch member 23 is pressed by the pressed member 22, the switch member 23 is turned on, for example.

  The switch member 23 may be configured to open and close a single circuit, or may be a so-called two-stage operation type switch that opens and closes two circuits according to the difference in pressing force. In this embodiment, as an example, in order to realize switching between a so-called half-pressed state (first release state) and a so-called full-pressed state (second release state) of the release switch of the imaging apparatus 1, the switch member 23 is a two-stage operation type. Switch.

  The configuration of the push button device 20 will be described in more detail.

  As shown in FIG. 5, the pressed member 22 is provided with a shaft-shaped portion 22 d, a leg portion 22 e, a guide groove 22 f, and a locking claw 22 g on an inner surface 22 b of a plate-shaped plate portion 22 a. The inner surface 22 b of the plate-like portion 22 a is a surface facing the base portion 21 and the switch member 23. The pressed member 22 is made of, for example, a thermoplastic resin and is formed by resin molding.

  The plate-like portion 22a is a plate-like member whose longitudinal direction is a direction along a second axis orthogonal to the first axis (Z-axis). In the present embodiment, as an example, the plate-like portion 22a is a plate-like member that is curved in an arc shape along the outer shape of the convex surface portion 2a. Further, the plate-like portion 22a of the present embodiment is an elongated member whose longitudinal direction is the direction connecting the two arcuate ends. Note that the outer shape of the convex surface portion 2a, which is a curved surface, and the curved shape of the plate-like portion 22a may or may not match. For example, the plate-like portion 22a may be flat. Hereinafter, for the sake of explanation, the second axis is referred to as the X axis, the axis orthogonal to both the first axis (Z axis) and the second axis (X axis) is referred to as the third axis, and this is referred to as the Y axis.

  More specifically, since the convex surface portion 2a has a substantially cylindrical surface shape as described above, the plate-like portion 22a is curved in a substantially arc shape. And the longitudinal direction of the plate-shaped part 22a is along the circumferential direction of the convex-surface part 2a which is a substantially cylindrical surface shape. That is, the longitudinal direction of the plate-like portion 22 a is substantially parallel to the light receiving surface of the image sensor 3.

  Further, in the present embodiment, as shown in FIG. 6, the outer surface 22 c of the plate-like portion 22 a has a main body 2 in which the central portion is located at the center rather than both ends in a cross section (vertical cross section) by a plane orthogonal to the light receiving surface of the image sensor 3. A recess 22i having a concave shape toward the inside is provided. By providing the depression 22 i on the outer surface 22 c that is the surface exposed to the outside of the main body 2 of the pressed member 22, the user's finger is likely to be applied to the pressed member 22. Further, by providing the depression 22i, the user can find the position of the pressed member 22 on the outer surface of the main body 2 by the sense of touch of the finger without using vision. Note that the outer surface 22c of the plate-like portion 22a may have a shape in which no depression is provided.

  The shaft-shaped portion 22d is a convex portion that protrudes in a direction substantially orthogonal to the inner surface 22b at a substantially central portion of the inner surface 22b of the plate-shaped portion 22a. As shown in FIGS. 6 and 7, the shaft-shaped portion 22 d is provided at a position facing the switch member 23. That is, the shaft-shaped portion 22d is a portion that protrudes from the inner surface 22b of the plate-shaped portion 22a toward the switch member 23 along the first axis (Z-axis). The shaft-shaped portion 22 d transmits this force to the switch member 23 when a force is applied to the pressed member 22 toward the inside of the main body 2. The shaft-like portion 22d is inserted into a guide hole 21g which is a second guide portion described later provided in the base portion 21.

  The outer shape of the shaft-shaped portion 22d has a shape in which the width in the direction along the X axis and the width in the direction along the Y axis are substantially constant at predetermined values. As shown in FIG. 5, in this embodiment, as an example, the shaft-shaped portion 22d has a cross-shaped cross section in which a flat plate parallel to the X axis and the Z axis intersects with a flat plate parallel to the Y axis and the Z axis. It has an outer shape. The shaft-like portion 22d may have a circular cross section or a rectangular shape.

  The leg portions 22e are provided at both end portions along the X axis of the inner surface 22b of the plate-like portion 22a. That is, the pair of leg portions 22e are arranged on the inner surface 22b of the plate-like portion 22a so as to be separated in the longitudinal direction of the plate-like portion 22a and to sandwich the shaft-like portion 22d therebetween. In this embodiment, it can be said that the plate-like portion 22a has a shape curved in an arc shape so that the center portion protrudes to the opposite side of the pressing direction from the pair of leg portions 22e. The pair of leg portions 22e are in sliding contact with a flat surface portion 21b, which will be described later, provided on the base portion 21.

  In the present embodiment, as an example, the pair of leg portions 22e are portions that protrude in the direction along the Z axis from both ends in the direction along the X axis of the inner surface 22b of the plate-like portion 22a. A substantially spherical spherical portion 22e1 is provided at the tip of the leg portion 22e that contacts the flat surface portion 21b. The spherical part 22e1 is a part that reduces the contact area with the flat part 21b and reduces the sliding resistance between the leg part 22e and the flat part 21b.

  The pair of leg portions 22e is provided with guide grooves 25 that constitute a first guide portion described later. The guide groove 25 is a groove-like portion that is concave in the leg portion 22e in the direction opposite to the pressing direction, extends parallel to the X axis, and has a predetermined width in the direction along the Y axis.

  The locking claw 22g is a hook-shaped part protruding in the pressing direction from the inner surface 22b of the plate-like part 22a. The locking claw 22g constitutes a locking portion described later. In the present embodiment, as an example, two locking claws 22g are provided. The pair of locking claws 22g are spaced apart in the direction along the Y axis so as to sandwich the shaft-shaped portion 22d therebetween. The pair of locking claws 22g of the present embodiment is provided so that the collar portion extends in a direction opposite to the shaft-shaped portion 22d.

  A circuit board 24 on which the switch member 23 is mounted is fixed to the base portion 21. In the present embodiment, the circuit board 24 is a flexible printed wiring board having flexibility as an example, and is attached to a substantially flat board holding part 27. The substrate holding part 27 is fixed to the base part 21 with a plurality of screws 28.

  The base part 21 includes a flat part 21b. The flat portion 21b is a flat surface that is orthogonal to the Z-axis and faces in the direction opposite to the pressing direction. The pair of leg portions 22e of the pressed member 22 described above is in sliding contact with the flat surface portion 21b. In the present embodiment, as an example, the planar portion 21b is divided and arranged in two regions in the direction along the X axis.

  In the vicinity of a region where the pair of leg portions 22e of the flat surface portion 21b is in sliding contact, a guide convex portion 26 constituting a first guide portion described later is provided. The guide convex portion 26 is a flat plate-like portion that is parallel to the X axis and the Z axis and has a predetermined thickness in the direction along the Y axis. The guide convex part 26 protrudes in the direction opposite to the pressing direction from the flat part 21b. In the present embodiment, as an example, the guide convex portion 26 is provided on each of the plane portions 21b divided into two regions in the direction along the X axis.

  The guide convex portion 26 is slidably fitted into the guide groove 25 provided in the pair of leg portions 22e. Due to the engagement of the guide convex portion 26 provided on the base portion 21 and the guide groove 25 provided on the pair of leg portions 22e, the pair of leg portions 22e is in a direction along the X axis with respect to the plane portion 21b. It is guided so that it may only be displaced. In other words, when the guide convex portion 26 and the guide groove 25 are engaged, displacement in the direction along the Y axis with respect to the flat portion 21b of the pair of leg portions 22e is prevented. Thus, the guide convex portion 26 and the guide groove 25 of the present embodiment are provided between the inner surface 22b of the plate-like portion 22a and the base portion 21, and the pair of leg portions 22e with respect to the plane portion 21b. A first guide portion is configured to guide the guide so that it can be displaced only in the direction along the X axis.

  The configuration of the first guide portion is not limited to the present embodiment. For example, the guide convex portion 26 is provided on the pair of leg portions 22 e of the pressed member 22, and the guide groove 25 is a flat portion of the base portion 21. The form provided in 21b may be sufficient.

  The base portion 21 has a covering portion 21 f that is a plate-like portion interposed between the inner surface 22 b of the plate-like portion 22 a of the pressed member 22 and the switch member 23. As shown in FIG. 7, the covering portion 21f is separated from the inner surface 22b of the plate-like portion 22a by a predetermined distance in the pressing direction.

  The covering portion 21f is formed with a guide hole 21g and a locking hole 21h which are through holes penetrating the covering portion 21f in the direction along the Z axis.

  The shaft-like portion 22d of the pressed member 22 is inserted into the guide hole 21g that is the second guide portion. The shaft-shaped portion 22d protrudes from the surface in the pressing direction of the covering portion 21f toward the switch member 23 through the guide hole 21g.

  The shaft-like portion 22d can be displaced in the direction along the Z-axis with respect to the base portion 21 and in the direction along the Y-axis with the shaft-like portion 22d being inserted into the guide hole 21g. In the state where the shaft-like portion 22d is inserted into the guide hole 21g, displacement in the direction along the X-axis is restricted.

  Specifically, as shown in FIG. 6, the guide hole 21g has such a width that a relatively large gap is formed between the guide hole 21g and the shaft portion 22d in the direction along the Y axis. Displacement in the direction along the Y-axis of 22d is allowed. On the other hand, as shown in FIG. 7, in the direction along the X axis, the guide hole 21g has a width to be slidably fitted to the shaft-shaped portion 22d, and extends along the X-axis of the shaft-shaped portion 22d inside. Prevent displacement in the direction. As described above, the guide hole 21g of the present embodiment allows displacement of the shaft-shaped portion 22d in the direction along the Z-axis with respect to the base portion 21 and is along the X-axis with respect to the base portion 21 of the shaft-shaped portion 22d. Prevent displacement in the direction.

  The locking claw 22g of the pressed member 22 is inserted into the locking hole 21h. In the locking hole 21h, a stepped portion 21i is provided in which a hook-shaped locking claw 22g inserted therein engages in a so-called snap-fit form. In a state where the locking claw 22g and the stepped portion 21i are engaged, the movement of the locking claw 22g in the direction opposite to the pressing direction with respect to the base portion 21 is prevented. Further, even when the locking claw 22g and the stepped portion 21i are engaged, the locking claw 22g is allowed to move in the pressing direction with respect to the base portion 21. Thus, the locking claw 22g of the pressed member 22 and the locking hole 21h of the base portion 21 constitute a locking portion that prevents the pressed member 22 from falling off the base portion 21.

  In the present embodiment, as shown in FIG. 6, the screw hole 21e provided in the base portion 21 communicates with the locking hole 21h. The screw hole 21e opens into the locking hole 21h in the pressing direction than the stepped portion 21i. When the thin claw-like member protrudes from the screw hole 21e into the locking hole 21h in a state where the locking claw 22g and the stepped portion 21i are engaged, the engagement between the locking claw 22g and the stepped portion 21i is released. Thus, the pressed member 22 can be removed from the base portion 21.

  Further, as shown in FIG. 7, the covering portion 21f is provided with a through hole 21j with a counterbore hole through which a screw 28 for fixing the substrate holding portion 27 is inserted.

  As described above, the push button device 20 of the present embodiment includes the switch member 23 that operates by being pressed with a predetermined force in the pressing direction along the Z axis (first axis), and the switch member 23. The base part 21 to support and the to-be-pressed member 22 which transmits the pressing force applied from the outside to the switch member 23 are provided. The base portion 21 includes a flat portion 21b that is orthogonal to the Z-axis and faces in a direction opposite to the pressing direction. The pressed member 22 is a plate-like member whose longitudinal direction is along the X-axis (second axis) perpendicular to the Z-axis, and the inner surface 22b is opposed to the switch-like member 22a. The plate-like portion 22a is provided at both end portions along the X-axis of the shaft-like portion 22d projecting along the Z-axis from the center portion of the inner surface 22b of the plate-like portion 22a. A pair of leg portions 22e in sliding contact with each other.

  Further, the push button device 20 of the present embodiment includes a locking claw 22g and a locking hole 21h, and a pair of leg portions 22e, which are locking portions that prevent the pressed member 22 from falling off the base portion 21. A guide convex portion 26 and a guide groove 25, which are first guide portions for guiding the pair of leg portions 22e so as to be displaced only in the direction along the X axis with respect to the flat surface portion 21b, and a base portion of the shaft-shaped portion 22d And a guide hole 21g that is a second guide portion that allows displacement in the direction along the Z axis with respect to 21 and prevents displacement of the shaft-shaped portion 22d in the direction along the X axis with respect to the base portion 21.

  In the push button device 20 of the present embodiment configured as described above, positioning in the direction along the Y axis with respect to the base portion 21 of the pressed member 22 and positioning in the pressing direction of the pressed member 22 with respect to the base portion 21 are performed. This is done by the first guide. The positioning of the pressed member 22 in the direction along the X axis with respect to the base portion 21 is performed by the second guide portion. Further, positioning of the pressed member 22 in the direction opposite to the pressing direction with respect to the base portion 21 is performed by the locking portion. Thus, the pressed member 22 is held at a predetermined position with respect to the base portion 21 and the switch member 23 fixed to the base portion 21.

  And when the force which presses toward the base part 21 from the outside is applied to the plate-shaped part 22a of the to-be-pressed member 22, the plate-shaped part 22a is the both ends of a longitudinal direction (direction along an X-axis). Since the leg portion 22 e is in contact with the flat portion 21 b of the base portion 21, the plate-like portion 22 a is elastically deformed so as to sink toward the switch member 23.

  At this time, the pair of leg portions 22e do not move in the direction along the Y-axis, but move only in the direction along the X-axis direction, so that the base portion 21 of the shaft-like portion 22d and the switch member 23 are along the Y-axis. While the direction is positioned, the elastic deformation of the plate-like portion 22a is not hindered. Since the shaft-shaped portion 22d is inserted into the guide hole 21g, the central portion of the plate-shaped portion 22a is positioned in the direction along the X-axis with respect to the base portion 21 and the switch member 23, and the Z-axis. Move in the pressing direction. Then, when the plate-like portion 22a is elastically deformed in the direction of sinking toward the switch member 23, the switch member 23 is pressed and operated by the shaft-like portion 22d.

  Here, the elastic deformation in the direction in which the plate-like portion 22a sinks toward the switch member 23 is caused by a pair of forces in the direction from the outer surface 22c toward the inner surface 22b provided at both ends in the longitudinal direction of the plate-like portion 22a. It occurs regardless of where it is added in the area between the legs 22e. For this reason, in this embodiment, the pressing force applied to the pressed member 22 is reliably switched without providing a configuration for guiding the pressed member so as to move smoothly in the thickness direction as in the prior art. It can be transmitted to the member 23. As described above, the push button device 20 according to the present invention is small in size and can perform a reliable operation even when the area of the pressed member 22 is increased.

  Note that the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope or spirit of the invention that can be read from the claims and the entire specification. The button device is also included in the technical scope of the present invention.

  In addition, the imaging apparatus including the push button device according to the present invention is not limited to the form in which the lens is removable as described in the above-described embodiment, and may be in the form integrated with the lens. In addition, the image pickup apparatus including the push button device according to the present invention is not limited to the form of the camera, and is provided in binoculars, a recording device, a portable communication terminal, a game machine, a digital media player, a clock, a navigation device, and the like. Also good.

1 imaging device,
2 body,
2a convex part,
2b end on one side,
2c the end on the other side,
2d mainframe,
2e through hole,
3 image sensor,
4 Lens mounting part,
5 External device mounting part,
5a partial circumferential recess,
5b engaging claws,
6 batteries,
7 Cover 7a Through hole,
20 push button device,
21 base,
21b plane part,
21e screw hole,
21f covering part,
21g guide hole,
21h Locking hole,
21i steps,
21j through hole,
22 pressed member,
22a Plate-shaped part,
22b inner surface,
22c outer surface,
22d shaft portion,
22e legs,
22e1 bulbous part,
22f guide groove,
22g Claw,
22i depression,
23 switch member,
24 circuit board,
25 Guide groove,
26 Guide convex part,
27 substrate holder,
28 screws,
29 screws.

Claims (3)

A switch member that operates by being pressed with a predetermined force in a pressing direction along a predetermined first axis;
Comprising a pair of flat portions orthogonal to the first axis and facing in the opposite direction to the pressing direction, and a base portion supporting the switch member;
A plate-shaped member having a longitudinal direction along a second axis perpendicular to the first axis, the inner surface of which is opposed to the switch member, and a central portion of the inner surface of the plate-shaped portion A shaft-shaped portion protruding toward the switch member along one axis, and both end portions along the second axis of the inner surface of the plate-shaped portion, provided at positions facing the pair of plane portions, respectively. the pressing member includes a leg portion of a pair has,
A locking portion that prevents the pressed member from falling off from the base portion,
One is provided on each of the pair of legs, and the other is provided at a position corresponding to the one of the planes , and the pair of legs is only in a direction along the second axis with respect to the planes. A first guide portion that guides the pair of leg portions so as to be displaced; and a first shaft provided between an inner surface of the plate-like portion and the base portion, and the shaft-like portion with respect to the base portion. A second guide portion that allows displacement in a direction along the axis and prevents displacement of the shaft-like portion in a direction along the second axis with respect to the base portion,
Comprising
When a pressing force is applied to the pressed member, the plate-like portion is elastically deformed, so that each of the pair of leg portions slides on the corresponding flat portion with respect to the shaft-like portion. A push button device that is displaced only in a direction along two axes . The said 1st guide part is comprised from the groove part arrange | positioned at one of the said plane part or the said leg part, and the convex part which is arrange | positioned at the other and fits the said groove part. Push button device. The push button device according to claim 2, wherein the convex portion is formed in the flat portion, and the groove portion is formed in the leg portion along a second axis.

Images