JP2011138660A - Operator deployment structure of electrical apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce bending of an operator substrate during operation of an operated part. <P>SOLUTION: An operator unit 50 is deployed, in a state where wall parts 57 of a common base end part 51 are always abutted on the upper face 40a of an operator substrate 40. The lower case abutting boss 15 protruded and installed from the rear face 10f of the upper case 10 is installed so as to avoid interference between the operator substrate 40 and the operator unit 50, and abutted against a recess 35 of the lower case 30; while the lower case abutting boss 15 is deployed at a position close to the common base end part 51 at an side farther inside than a circle formed along deployment positions of five operated parts 53 around the common base end part 51. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an operator arrangement structure of an electric device configured such that an operator unit is arranged on an operator board and an operated part is operated from the outside of a casing.

  2. Description of the Related Art Conventionally, there is known an electric device in which an operation unit is disposed on an operation unit substrate and an operated portion of the operation unit is pressed. For example, in the operation element arrangement structure of the following Patent Document 1, an operation element unit in which an operation target part is connected from a common base end part via a plurality of hinge parts is provided, and the common base end part contacts the operation element substrate. It arrange | positions so that it may contact | connect. When the operated portion is pressed, the operated portion swings up and down via the hinge portion, and the tact switch disposed on the operating element board is driven by the operated portion.

Japanese Patent No. 3794337

  However, in the structure of Patent Document 1, since the pressing force when the operated portion is pressed is applied to the common base end portion via the corresponding hinge portion, the operator board is biased downward. Become. The operator board is fixed to the upper case at multiple locations, but the part of the common base end where the pressed force of the operated part is pressed is far from the fixed location between the operator board and the upper case There is a problem that the downward deflection of the operation board becomes large. If deformation of the operation board becomes large due to long-term use, there is a possibility that the drive of the tact switch may be adversely affected.

  The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide an operation device arrangement structure for an electric device that can reduce the bending of the operation device substrate when the operated portion is operated. It is to provide.

  In order to achieve the above object, an operating element arrangement structure of an electric device according to claim 1 of the present invention is fixed to the first case (10) having a panel surface (10e), the first case, and the first case. A second case (30) constituting a housing together with the case, a common base end (51), and extending from the common base end in different directions in a direction parallel to the panel surface of the first case. The plurality of hinge portions (52) are connected to the common base end portion via the hinge portions and exposed to the panel surface, and the corresponding hinge portions are bent and pressed on the panel surface by being pressed. An operating element unit (50) comprising a plurality of operated parts (53) configured to swing in an orthogonal direction, and a switch (47) driven by the operated parts of the operating element unit. It is arranged corresponding to each operated part. An operation element substrate (40) fixed to the first case between the first case and the second case, and the operation element unit is configured such that the common base end portion is always on the operation element substrate. A projecting portion (15) is provided projecting from at least one of the first case and the second case toward the other, and the projecting portion includes the operating board and the operation board. Provided so as to avoid interference with the child unit, abutting on or close to the other fixed portion (35), and the projecting portion is the common base of the plurality of operated portions. It is characterized in that it is disposed at a position closer to the common base end portion than the one closest to the end portion.

  For example, when a circle is formed along the arrangement position of a plurality of operated parts around the common base end part, the projecting part is arranged at a position close to the common base end part inside the circle. Is done.

  Preferably, the plurality of operated parts include a plurality of parts arranged on the same circle centered on the common base end part, and a circumferential direction between those adjacent in the circumferential direction among them When the first and second operated parts (53A, 53E) are the ones having the largest interval, the projecting part has the first and second operated parts in the region inside the circle. It is located in the area | region on the opposite side of the side which adjoins in the circumferential direction (Claim 2).

  Preferably, the other fixed portion (35) of the first case and the second case is formed in a concave shape (Claim 3).

  Preferably, the projecting portion is located between the roots of the hinge portions of two adjacent operated portions (53B, 53C) among the plurality of operated portions (Claim 4).

  Preferably, a through hole (45) is formed in the operating element substrate, and the protruding portion penetrates the through hole, so that interference between the operating element substrate and the protruding portion is avoided. At the same time, the position of the operator board relative to the first case in the direction parallel to the panel surface is restricted (Claim 5).

  Preferably, the operating element substrate is fixed to the first case by a plurality of fastening portions (46), and the plurality of fastening portions have different distances from the through hole (45) ( Claim 6).

  In addition, the code | symbol in the said parenthesis is an illustration.

  According to the first aspect of the present invention, it is possible to reduce the deflection of the operator board when the operated portion is operated.

  According to the second aspect, the effect of suppressing the deflection of the operation element substrate by the projecting portion can be made to be uniform between the operated portions arranged on the same circle.

  According to the third aspect, the projecting portion can be stably received, and the tilt of the projecting portion during operation can be suppressed, so that the bending of the operator board can be more reliably suppressed.

  According to the fourth aspect, the projecting portion can be disposed close to the common base end portion, and the effect of suppressing the deflection of the operator board by the projecting portion can be enhanced.

  According to the fifth aspect, positioning in the direction parallel to the panel surface at the time of mounting the operator board to the first case is easy, and mounting work is facilitated.

  According to the sixth aspect, since the normal position in the rotation direction of the operator board can be known from the corresponding relationship between the fastening portions of the first case and the fastening portions of each fastening part, the operation of attaching the operator board to the first case is easy. It becomes.

It is a perspective view of the upper case of the electric equipment with which the operation element arrangement structure concerning one embodiment of the present invention is applied. It is a back view of a case same as the above. It is a perspective view of the lower case of this electric equipment. It is a top view of a manipulator board and a top view of a main board. It is the top view of an operation element unit, and the perspective view seen from diagonally downward. It is the side view and back view of an operation element unit. It is a fragmentary sectional view which follows the AA line of FIG. It is an end elevation of the section which meets the BB line of Drawing 6 (b).

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

  FIG. 1 is a perspective view of an upper case of an electric device to which an operation element arrangement structure according to an embodiment of the present invention is applied. FIG. 2 is a rear view of the same case. FIG. 3 is a perspective view of the lower case of the electrical apparatus.

  The casing of the electrical apparatus is configured by fixing an upper case 10 shown in FIGS. 1 and 2 and a lower case 30 shown in FIG. Although this electric apparatus is comprised as an audio interface, for example, a kind is not ask | required. Therefore, the operation element arrangement structure of the present invention can be applied to various electric devices including an audio device.

  For convenience of explanation, a designation of the direction of the device is determined. When this device is placed on a table or the like, the back surface 10f (see FIGS. 1 and 2) of the upper case 10 is on the lower side, and the panel surface 10e (FIGS. 7 and 8) is the upper side. The lower case 30 has an upper surface 30e (see FIG. 3) on the upper side. Accordingly, FIG. 1 is a perspective view from obliquely below, and FIG. 3 is a perspective view from obliquely above.

  Further, with respect to front, rear, left and right, the front portion 10a, the rear portion 10b, the left portion 10c, and the right portion 10d of the upper case 10 are shown in FIGS. 1 and 2, and the front portion 30a, the rear portion 30b, the left portion 30c, The right part 30d is shown in FIG.

  As will be described later with reference to FIGS. 7 and 8, the upper shield 81, the operator board 40 (see FIG. 4A), main, A substrate 70 (see FIG. 4B) and a lower shield 82 are disposed. An operator unit 50 (see FIGS. 5 and 6) is disposed between the upper case 10 and the lower case 30. Each of the upper case 10, the operator unit 50, and the lower case 30 is manufactured by injection molding with resin, for example. The upper shield 81 and the lower shield 82 are made of, for example, steel plates.

  As shown in FIGS. 1 and 2, a plurality of engagement ribs 14 are formed on the left portion 10 c and the right portion 10 d on the back surface 10 f of the upper case 10. In addition, four first bosses 11 (11A to 11D) are projected from the four corners of the back surface 10f. A second boss 12 (12A, 12B) is projected from the front portion 10a and the rear portion 10b, and an upper shield mounting boss 19 is projected from the second boss 12 inward in the front-rear direction. A central boss 13 projects from the center position of the back surface 10f.

  A lower case abutting boss 15 is provided in a projecting manner in a substantially central position in the right half of the back surface 10f, and a lower case abutting boss 18 is provided in a projecting manner in the left portion 10c. In addition, in the right half of the back surface 10f, operating element board mounting bosses 16 (16A to 16D) are provided to project at four positions spaced apart from each other about the lower case contact boss 15. Shield abutting bosses 17 are projected from a large number of locations on the back surface 10f.

  In the right half of the back surface 10f, an annular rib 21 projects downward, and the inner diameter of the annular rib 21 is a through hole 22 up to the panel surface 10e. A rib 24 is formed around the annular rib 21 on the back surface 10f. The rib 24 includes a portion that surrounds the annular rib 21 within a semicircle or more, and a portion that is formed in a cross shape in the diagonally left rear and the diagonally right front, both of which have the same protruding height. In addition, positioning pins 25 are integrally formed to project at the crossing position of the cross portion on the right front side. A manipulator window 23 (23A) for penetrating a pressing portion 54 (see FIG. 5A) of a manipulator unit 50, which will be described later, is exposed along the circle centered on the annular rib 21 and exposed to the panel surface 10e. To 23D).

  As shown in FIG. 3, on the upper surface 30e of the lower case 30, a plurality of engagement ribs 34 are formed on the left portion 30c and the right portion 30d. Further, corresponding to the first bosses 11A to 11D of the upper case 10, first corresponding bosses 31 (31A to 31D) are provided to project. On the front portion 30a and the rear portion 30b, second corresponding bosses 32 (32A, 32B) are provided so as to protrude corresponding to the second bosses 12A, 12B of the upper case 10. At the center position of the upper surface 30e, a center-corresponding boss 33 projects from the center boss 13 of the upper case 10.

  In addition, a dish-shaped recess 35 is formed in the middle of the right half of the upper surface 30e corresponding to the lower case contact boss 15 of the upper case 10, and the left portion 30c corresponds to the lower case contact boss 18. A dish-shaped recess 38 is formed.

  4A and 4B are plan views of the operator board 40 and the main board 70, respectively. As will be described later, the operator board 40 is fixed to the upper case 10, and the main board 70 is fixed to the upper case 10 and the lower case 30. The main board 70 may be configured to be fixed to either the upper case 10 or the lower case 30.

  As shown in FIG. 4A, one central operation element body 41 is disposed on the upper surface 40 a of the operation element substrate 40. The central operator body 41 includes a switch main body 42, a rotary shaft portion 43 attached to the switch main body 42, and a knob 44 attached to the shaft portion 43 (see also FIG. 8). The knob 44 is attached to the shaft 43 at the final stage of product assembly. Five tact switches 47 (47A to 47E) are arranged on the same circle with the switch body 42 as the center. Further, a through hole 45 is formed adjacent to the switch body 42. Although the tact switch 47 is exemplified, any switch may be used as long as it is a push-driven switch.

  Here, when the central operation element body 41 is positioned concentrically with the annular rib 21 of the upper case 10, the positions of the tact switches 47A to 47C correspond to the operation element windows 23A to 23C of the upper case 10, The positions of the tact switches 47D and 47E correspond to the operator window 23D. Further, the position of the through hole 45 corresponds to the lower case contact boss 15 of the upper case 10.

  The operator board 40 is also formed with fastening holes 46 (46A to 46D) corresponding to the operator board mounting bosses 16A to 16D of the upper case 10. In addition to this, various operation elements and electronic components may be disposed on the operation element substrate 40. The distances between the fastening holes 46A to 46D and the through hole 45 are different from each other.

  As shown in FIG. 4B, fastening holes 71 (71 </ b> A to 71 </ b> D) are formed at four corners of the upper surface 70 e of the main board 70 corresponding to the first bosses 11 </ b> A to 11 </ b> D of the upper case 10. Further, fastening holes 72 (72A, 72B) are formed in the front part 70a and the rear part 70b of the main board 70 corresponding to the second bosses 12A, 12B of the upper case 10. A through hole 73 is formed at the center position of the main board 70 corresponding to the center boss 13 of the upper case 10. A cutout portion 78 is formed in the left portion 70 c corresponding to the lower case contact boss 18 of the upper case 10.

  In a state where the main board 70 and the operation element board 40 are disposed in the housing, the operation element board 40 is disposed at a position near the front part 70a and the right part 70d of the main board 70 in a plan view. An elliptical hole 75 is formed in the main substrate 70. In a state where the main board 70 and the operator board 40 are disposed in the housing, the position of the elliptical hole 75 corresponds to the through hole 45 of the operator board 40, and the lower case contact boss 15 of the upper case 10 It will be in the state which penetrated these elliptical holes 75 and the through holes 45. FIG.

  FIGS. 5A and 5B are a plan view and a perspective view, respectively, seen from diagonally below of the operator unit 50. FIGS. 6A and 6B are a side view and a back view of the operator unit 50, respectively. FIG. 7 is a partial cross-sectional view taken along line AA in FIG. FIG. 8 is an end view of a cross section taken along the line BB in FIG.

  As shown in FIGS. 5 and 6, the operator unit 50 is provided at a common base end portion 51, five hinge portions 52 extending from the common base end portion 51, and a tip of the hinge portion 52. And is integrally formed with the operated portion 53 (53A to 53E). The common base end portion 51 has a plate portion 56 that has a fitting hole 58 formed in the annular rib 21 and has a substantially donut shape. From the plate portion 56, a meat portion 57 along the same circle centering on the fitting hole 58 is formed to protrude on the back side (see FIG. 6B). The meat portion 57 has a shape of a lacking circle (a lacking shape) that is separated into two when viewed from the back, but generally has an “enclosed shape” that surrounds the fitting hole 58.

  As shown in FIGS. 5A and 6B, a pin hole 59 is formed in the plate portion 56 inside the meat portion 57 in the radial direction of the fitting hole 58. A concave notch 56 a is formed at the edge of the plate portion 56 between the two separated meat portions 57. The plate portion 56 has an extended portion 60 extending radially outward separately from the five hinge portions 52, and a protruding portion 61 is formed on the back side of the extended portion 60 (FIG. 5B). FIG. 6 (b)).

  As shown in FIG. 8, the plate portion 56 is parallel to the panel surface 10 e of the upper case 10 in a state where the operator unit 50 is disposed in the housing. Hereinafter, the direction parallel to the panel surface 10 e is also referred to as “horizontal direction”. As can be seen from FIGS. 5A and 6B, the hinge portions 52 extend radially from the plate portion 56 of the common base end portion 51 in mutually different directions in the horizontal direction. In particular, any of the hinge portions 52 extends from a position where the meat portion 57 exists. A thin portion 52a is formed on the lower surface side of a portion of each hinge portion 52 that is connected to the common base end portion 51 (see FIGS. 5A, 6B, and 8). Since each hinge part 52 is flat and has the thin part 52a in the root, it is easy to rock | fluctuate up and down by elasticity.

  Since each operated portion 53 is connected to the common base end portion 51 via the hinge portion 52, it is orthogonal to the panel surface 10 e due to the bending and returning of the corresponding hinge portion 52 by being pushed and separated. It swings up and down. The arrangement of the operated portion 53 is on the same circle with the common base end portion 51 as the center. However, the arrangement interval of the operated parts 53 in the circumferential direction centering on the common base end part 51 is not uniform, and is arranged so as to be offset toward one side of the circle. And the space | interval of adjacent things is the narrowest between to-be-operated parts 53D and 53E. The distance between the operated parts 53A and 53E is larger than the others, but the distance between the operated parts 53B and 53C is the largest on the side where the operated part 53 is offset. The notch portion 56a of the plate portion 56 described above is positioned between the roots of the hinge portions 52 of the operated portions 53B and 53C.

  The arrangement of the operated portion 53 corresponds to the operation element window 23 in the upper case 10. However, in the product assembled state, the operated parts 53A to 53C are exposed from the operation element windows 23A to 23C, but the operated parts 53D and 53E are exposed from one common operation element window 23D.

  As shown in FIGS. 5, 6, and 8, as a common configuration, each operated portion 53 has a pressing portion 54 that bulges upward and is directly pressed down, and a projecting protrusion below the pressing portion 54. The actuator 55 is provided. Each actuator 55 is close to the tact switch 47 corresponding to the position on the operator board 40.

  As shown in FIGS. 5 (a) and 6 (b), from each pressing portion 54, an outer flange portion 63 is formed to extend outward in the radial direction of the fitting hole 58, and in the circumferential direction, it is a horizontal flange. A portion 62 is formed to extend. However, the recumbent part 62 is not provided on the sides of the operated parts 53D and 53E adjacent to each other. Further, the side portion of each pressing portion 54 in the circumferential direction is a vertical wall portion 65 (see FIG. 5B), but this vertical wall portion 65 does not exist in a portion where there is no recumbent portion 62. . That is, there is no vertical wall portion 65 in the push-down portion 54 on the sides of the operated portions 53D and 53E that are adjacent to each other. Thereby, when the gap between the operated parts 53D and 53E is formed by injection molding, the thin portion of the mold to be used does not have to be lengthened, and the durability of the mold is improved.

  By the way, when the operator unit 50 is integrally formed, a gate portion 64 corresponding to a portion for allowing resin to flow into the mold is provided on the upper surface side of each outer flange 63 (see FIG. 5A). The operated parts 53A to 53C are provided at the center of the outer flange 63 in the circumferential direction, but the operated parts 53D and 53E are provided at positions far from each other. This is because the spread of the entire resin is made uniform in consideration that it is not necessary to form the vertical wall portion 65 on the side where the operated portions 53D and 53E are adjacent to each other.

  Next, the manner of assembling each component and the relationship in the assembled state will be described.

  As an assembling operation, first, the upper case 10 is placed upside down and the upper shield 81 is attached. The left and right side portions of the upper shield 81 are engaged with the engagement ribs 14 (see FIGS. 1 and 2) of the upper case 10 and temporarily fixed, and the upper surface is brought into contact with the shield contact boss 17. Then, the upper shield 81 is fixed by screwing a screw into the upper shield mounting boss 19 from the back side (FIG. 7). Although not shown, the upper shield 81 is formed with holes or notches that do not interfere with various bosses such as the bosses 11, 12, 13, 15, and 18.

  Next, the operator unit 50 is disposed from the back side with respect to the upper case 10 to which the upper shield 81 is attached. At that time, the fitting hole 58 of the operator unit 50 is fitted to the outer periphery of the annular rib 21 of the upper case 10 (see FIG. 8). With these fittings, the position of the operator unit 50 in the horizontal direction is regulated. Further, positioning in the rotational direction (circumferential direction) is regulated by allowing the positioning pin 25 of the upper case 10 to be inserted into the pin hole 59 of the operation unit 50. In addition, when the operator unit 50 is disposed, the operator can recognize the position in the rotational direction so that the cutout portion 56a comes to the position of the lower case contact boss 15. The positioning pin 25 and the lower case contact boss 15 function as a mounting guide for the operation unit 50. The pressing portion 54 is exposed from the operation element window 23 to the panel surface 10e. The operation unit 50 is not fixed at all.

  Next, on the upper case 10 on which the upper shield 81 and the operator unit 50 are disposed, the operator substrate 40 with the knob 44 not attached is placed from the back side. At that time, the lower case contact boss 15 of the upper case 10 is placed so as to pass through the through hole 45 (see FIG. 4A). By positioning the lower case contact boss 15 and the through hole 45, the operator board 40 is positioned in the horizontal direction. At the same time, the operator aligns the fastening holes 46A to 46D with the operator board mounting bosses 16A to 16D of the upper case 10. That is, the position in the rotation direction of the operator board 40 around the through hole 45 is determined.

  Here, since the distance between the fastening holes 46 </ b> A to 46 </ b> D and the through hole 45 is different from each other as described above, the positions do not match unless the fastening hole 46 and the operator board mounting boss 16 are appropriately matched. That is, since the normal position in the rotation direction of the operator board 40 is known from the correspondence relationship between each fastening hole 46 and each operator board mounting boss 16, it is possible to avoid incorrect positioning in the rotation direction. Therefore, proper positioning can be made visually, and the operation of attaching the operation board 40 to the upper case 10 becomes easy.

  Thereafter, the operator board 40 is fixed to the upper case 10 by screwing screws into the operator board mounting boss 16 through the fastening holes 46 (see FIG. 7).

  As shown in FIG. 8, when the operating element substrate 40 is in a fixed state, the distal end 57 a of the flesh 57 of the common base end portion 51 of the operating element unit 50 is always in contact with the upper surface 40 a of the operating element substrate 40. Further, the upper surface of the plate portion 56 that is the upper surface of the common base end portion 51 is in contact with the rib 24 of the upper case 10. Therefore, the operator unit 50 is disposed in a state where the common base end portion 51 is sandwiched between the upper case 10 and the operator substrate 40.

  Of the central operation element body 41 disposed on the operation element substrate 40, the shaft portion 43 penetrates the through hole 22 of the annular rib 21 and extends upward. Then, immediately before the assembly is completed, the knob 44 is attached to the shaft 43, and the knob 44 is exposed to the panel surface 10e through the through hole 22 so as to be rotatable. As a result, the central operating element 41 is disposed so as to penetrate through the flesh 57 of the common base end 51 and the inside of the annular rib 21 of the upper case 10.

  Next, the main substrate 70 is placed from the back side on the upper case 10 in which the upper shield 81, the operation element unit 50, and the operation element substrate 40 are disposed. At that time, the lower case contact boss 15, the center boss 13, and the lower case contact boss 18 of the upper case 10 pass through the elliptical hole 75, the through hole 73, and the cutout portion 78 of the main board 70, respectively. Thus, the main board 70 is positioned, the fastening holes 71A to 71D coincide with the positions of the first bosses 11A to 11D, and the fastening holes 72A and 72B coincide with the positions of the second bosses 12A and 12B.

  On the other hand, in the lower case 30, a lower shield 82 is disposed from the front side of the lower case 30. The left and right side portions of the lower shield 82 are engaged with the engaging ribs 34 (see FIG. 3) of the lower case 30 and temporarily fixed, and the lower surface is brought into contact with the center corresponding boss 33. Although not shown, the lower shield 82 is formed with holes or notches that do not interfere with various bosses such as the bosses 11, 12, 15, and 18.

  In this way, the lower case 30 temporarily attached with the lower shield 82 is disposed upside down on the upper case 10 attached to the main board 70. The upper case 10 and the lower case 30 are configured to engage with peripheral edges. Then, the lower case 30 is fixed to the upper case 10 together with the lower shield 82 by screwing screws into the central boss 13 from the back side of the lower case 30 via the center corresponding boss 33. Furthermore, the lower case 30 is fixed to the upper case 10 together with the main substrate 70 by screwing screws into the first boss 11 and the second boss 12 from the back side of the lower case 30 through the fastening holes 71 and 72. The Thereafter, the top and bottom of the housing is returned, and the knob 44 is attached to the shaft 43, and the assembly is completed.

  When the upper case 10 and the lower case 30 are assembled in this manner, the tips of the lower case contact boss 15 and the lower case contact boss 18 of the upper case 10 are in contact with the recess 35 and the recess 38. . The bosses 15 and 18 need not always be in contact with the recesses 35 and 38 and may be in close proximity to each other. Therefore, for example, in a state before the upper case 10 and the lower case 30 are combined and fastened, the distance between the bosses 15 and 18 and the recesses 35 and 38 is about 0.1 to 0.5 mm. It is good also as a design dimension which a gap | interval produces. As a result, the two come into contact with each other by fastening, or a slight gap remains.

  In such a configuration, when the pressing portion 54 of the operated portion 53 of the operating element unit 50 is pressed, the hinge portion 52 corresponding to the pressing portion 54 bends, and the actuator 55 drives the corresponding tact switch 47 of the operating element substrate 40. Then, it is turned on / off (see FIG. 8). When the pressing is released, the operated portion 53 returns to the original position due to the elasticity of the hinge portion 52.

  During the pressing operation, much of the pressing force is applied to a portion of the flesh portion 57 of the common base end portion 51 that is close to the root of the bent hinge portion 52. On the other hand, the operator board 40 is fixed to the upper case 10. Therefore, if there is no contrivance, the operator board 40 bends downward together with the upper case 10. In particular, the fastening position (fastening hole 46) with respect to the upper case 10 of the operator board 40 is close to the edge, and the pressing force toward the center of the operator board 40 greatly deforms the operator board 40.

  However, in the present embodiment, the lower case contact boss 15 passing through a position close to the common base end portion 51 is in contact with the concave portion 35 that is a fixed portion of the lower case 30 (see FIG. 7). ), And the function of suppressing the reduction of the gap between the upper case 10 and the lower case 30. Thereby, in the region close to the lower case contact boss 15, the operation element substrate 40 and the upper case 10 are difficult to bend. In addition, since the lower case contact boss 15 is located on the side where the operated portions 53A to 53E are arranged to be offset in the plan view of the operation unit 50, any of the operated portions 53 is operated. Even if it exists, the comparatively uniform bending suppression effect is exhibited. The lower case abutting boss 18 also functions to suppress the reduction in the gap between the upper case 10 and the lower case 30 in the vicinity thereof.

  According to the present embodiment, the operating element board 40 is fixed to the upper case 10 and is more than the circle formed along the arrangement positions of the five operated parts 53 with the common base end part 51 as the center. The lower case contact boss 15 is disposed at a position on the inner side and sufficiently close to the common base end portion 51. Here, “a circle formed along the arrangement position of the operated parts 53” is defined as a circle formed along a part closest to the common base end part 51 among the parts of the operated parts 53. However, it may be defined as a circle formed along the center of gravity in plan view.

  The lower case abutment boss 15 resists a reduction in the gap between the upper case 10 and the lower case 30. As a result, it is possible to reduce the deflection of the operator board 40 when the operated portion 53 is operated. In particular, the lower case abutting boss 15 is positioned between the roots of the hinge portions 52 of the two adjacent operated portions 53B and 53C, and is devised to be arranged as close as possible to the common base end portion 51. Therefore, the effect of suppressing the deflection of the operator board 40 by the lower case contact boss 15 is high.

  Here, in the present embodiment, the five operated parts 53 are arranged on the same circle, and among the circle regions formed by these, the ones adjacent in the circumferential direction are the largest in the circumferential direction. Are operated parts 53A and 53E (first and second operated parts). Then, the lower case contact boss is formed in a region opposite to the side where these operated portions 53A and 53E are adjacent in the circumferential direction (the side where the extending portion 60 is located and the right side in FIG. 5A). 15 is located. That is, the lower case abutting boss 15 is located in a region where there are many operated parts 53. As a result, the effect of suppressing the deflection of the operator board 40 by the lower case contact boss 15 can be made to be uniform between the operated parts 53 arranged on the same circle.

  Further, since the tip of the lower case contact boss 15 is in contact with the recess 35, the tip of the lower case contact boss 15 is stably received by the recess 35, and the tip does not slip laterally even when a pressing force is applied. Therefore, the lower case contact boss 15 can be prevented from falling during operation, and the bending of the operator board 40 can be more reliably suppressed.

  Further, since the lower case contact boss 15 penetrates the through hole 45 of the operation element substrate 40, mutual interference is avoided and the position of the operation element substrate 40 in the horizontal direction with respect to the upper case 10 is restricted. Therefore, the positioning in the horizontal direction at the time of attachment to the upper case 10 of the operator board 40 is easy, and attachment work becomes easy. The lower case contact boss 15 also serves as a guide function when the operation element substrate 40 is disposed.

  Further, since the distances between the fastening holes 46A to 46D of the operator board 40 and the through holes 45 are different from each other, the operation of attaching the operator board 40 to the upper case 10 is facilitated.

  Also according to the present embodiment, since the operation unit 50 is disposed in a state where the common base end portion 51 is sandwiched between the upper case 10 and the operation substrate 40, the common base end portion 51 is a spacer. The distance between the upper case 10 and the operator board 40 can be easily regulated. In addition, since the central operating element 41 is disposed through the inside of the enclosure-shaped meat portion 57 of the common base end portion 51, space is saved, and the operated portions 53 and the operation portions 53 arranged in a radial manner are provided. It is possible to efficiently arrange the central operating element 41 located at the center of the center. In addition, the central operating element 41 is protected by the meat portion 57. In particular, the central operating element 41 can be easily configured as a rotary operating element as well as a pressing operating element. In addition, if it restrict | limits to these viewpoints, the meat | flesh part 57 should just be a surrounding shape, and may be a perfect cylinder shape instead of a lacking shape. Or it is not limited to the shape along a circle, For example, the shape along a rectangle may be sufficient as planar view.

  Further, since the annular rib 21 of the upper case 10 and the fitting hole 58 of the operator unit 50 are fitted, the horizontal position can be easily regulated when the operator unit 50 is assembled to the upper case 10. it can.

  In addition, the lower case abutment boss 15 is positioned between the roots of the hinge portions 52 of the two adjacent operated portions 53B and 53C, and the positioning and position when the operator unit 50 is mounted on the upper case 10. Perform regulation and guide functions. Therefore, coupled with the above-described horizontal position restriction by fitting the annular rib 21 and the fitting hole 58, the assembling work of the manipulator unit 50 becomes easy and the manipulator unit 50 is assembled without using a fastener. It becomes possible.

  In the present embodiment, the lower case contact boss 15 protrudes from the upper case 10 and contacts the lower case 30, but conversely, protrudes from the lower case 30. You may make it contact | abut to the back surface 10f of the upper case 10. FIG. After all, if the projecting portion such as the lower case contact boss 15 is provided so as to project from at least one of the upper case 10 or the lower case 30 toward the other and contact with the other fixed portion. Good. Or you may contact | abut the protrusion parts which protruded from both. At that time, it is necessary to design the protruding portion so as not to interfere with the operation element board 40, the operation element unit 50, the upper shield 81, the main board 70, and the lower shield 82.

  In the present embodiment, the operated portion 53 is arranged on the same circle in the operator unit 50. However, the present invention is not limited to this, and the operated portion 53 having a different distance from the center of the common base end portion 51 is provided. May be present. In that case, the lower case contact boss 15 is closest to the common base end portion 51 among the plurality of operated portions 53 from the viewpoint of reducing the bending of the operator board 40 when operating each operated portion 53. It is better to arrange it at a position closer to the common base end portion 51 than That is, it is preferable that the plurality of operated portions 53 be disposed at a position closer to the common base end portion 51 than that closest to the common base end portion 51.

  Note that the arrangement of the operated portion 53 is not limited to the radial arrangement centered on the common base end portion 51 as long as the bending of the operation element substrate 40 is reduced when the operated portion 53 is operated. Or an arcuate arrangement.

  10 upper case (first case), 10e panel surface, 15 lower case abutting boss (projecting portion), 30 lower case (second case), 35 recess, 40 operation board, 45 through hole, 46 fastening hole ( Fastening part), 47 tact switch, 50 operator unit, 51 common base end part, 52 hinge part, 53 operated part

Claims (6)

A first case having a panel surface;
A second case fixed to the first case and constituting a housing together with the first case;
A common base end portion, a plurality of hinge portions extending from the common base end portion in different directions in a direction parallel to the panel surface of the first case, and the common base end via the hinge portions An operation comprising a plurality of operated parts that are configured to be coupled to a part and exposed to the panel surface and to be swung in a direction orthogonal to the panel surface by bending the corresponding hinge part when pressed. With child units,
A switch driven by each operated part of the operating unit is disposed corresponding to each operated part, and is fixed to the first case between the first case and the second case. A control board,
The operation unit is disposed in a state in which the common base end is in constant contact with the operation unit substrate,
A projecting portion projects from at least one of the first case and the second case toward the other, and the projecting portion is provided so as to avoid interference with the manipulator substrate and the manipulator unit. The projecting portion is in contact with or close to the other fixed portion, and the projecting portion is further closer to the common base end portion than the one closest to the common base end portion among the plurality of operated portions. An operation device arrangement structure for an electric device, characterized in that the operation device is arranged at a close position.   The plurality of operated parts include a plurality of parts arranged on the same circle centering on the common base end part, and among them, there is an interval in the circumferential direction between adjacent ones in the circumferential direction. When the largest one is the first and second operated parts, the projecting part is adjacent to the first and second operated parts in the circumferential direction in the region inside the circle. 2. The operation device arrangement structure for an electric device according to claim 1, wherein the operation device is arranged in a region opposite to the side.   3. The operating element arrangement structure for an electric device according to claim 1, wherein the other fixed portion of the first case and the second case is formed in a concave shape.   The said protrusion part is located between the roots of each hinge part of two adjacent to-be-operated parts among these to-be-operated parts, The any one of Claims 1-3 characterized by the above-mentioned. Electric device operator arrangement structure.   A through hole is formed in the operating element substrate, and the protruding portion penetrates the through hole, so that interference between the operating element substrate and the protruding portion can be avoided and the first case can be avoided. 5. The operation device arrangement structure for an electric device according to claim 1, wherein a position of the operation device substrate in a direction parallel to the panel surface is restricted.   The said operation element board | substrate is being fixed to the said 1st case with the some fastening part, The distance with the said through hole of these several fastening parts is mutually different. Electric device operator arrangement structure.

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