JP2007311556A - Rotary electrical component with push switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary electrical component with a push switch which can increase the accuracy of height of a rotary electrical component-side terminal and a push switch-side terminal with respect to a printed board and thereby can achieve good surface mounting. <P>SOLUTION: A push-contact case 10 arranged on the downside abuts its projectors 65a and 65b against a reference board 22 for a case through cutouts 56a and 56b of an encoder-contact case 8 to set up the height with respect to the surface of a printed board. Meanwhile, the encoder-contact case 8 arranged on the upside extends a terminal extractor 58 formed as an integral body of the case 8 to the position of the bottom face of the push-contact case 10 through the side face of the push-contact case 10, while at the same time abutting its projections 54a and 54b against the reference board 22 for a case to set up the height with respect to the surface of the printed board. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a rotary electric component with a push switch that functions as a push switch in a movement operation of an operation shaft in the axial direction and functions as a pulse switch or a variable resistor in a rotation operation of the operation shaft.

  Conventionally, various rotary electrical components with push switches have been proposed (see, for example, Patent Document 1). As shown in FIG. 9, the rotary electrical component with push switch described in Patent Document 1 has a rotating body 310 rotatably held in a cylindrical storage space formed in the mounting base 300. The tip of the cylindrical portion 311 of the rotating body 310 is inserted into the circular opening 301 formed in the bottom portion 300 a of the storage space of the mounting base 300, and the flange extends radially from the outer periphery of the intermediate portion of the cylindrical portion 311. The portion 312 is engaged with the bottom portion 300 a of the mounting base 300. A ring-shaped leaf spring 320 is disposed so as to close the upper surface opening of the storage space of the mounting base 300, and a flange portion 331 formed at the front end portion of the front plate 330 is disposed on the upper surface of the leaf spring 320. The flange portion 331 is fixed to the mounting base 300. On the other hand, the operation shaft 340 that is pivotally supported by the bearing portion 332 of the front plate 330 is formed with a pair of spring mounting legs 342 having split grooves 341 provided at the insertion end thereof. The mounting leg 342 is inserted into a through hole 313 formed along the rotation axis direction of the rotating body 310 and is snapped. Thus, the operation shaft 340 is supported so as to be rotatable with respect to the mounting base 300 and is supported so as to be linearly movable in the axial direction.

  A fixed contact case 350 is attached to the rear surface of the attachment base 300. Fixed contacts 351 and 352 are provided in concave portions formed on the mounting surface side of the fixed contact case 350, and a movable contact 353 that is a circular metal plate made of a spring member is disposed above the fixed contacts 351 and 352. The movable contact 353 has a convex shape on the operation shaft 340 side, and a cylindrical pressing end 343 of the operation shaft 340 is in contact with the movable contact 353 from above.

  Here, a plurality of conductive plates 302 made of a thin metal plate are embedded in the bottom portion 300 a of the mounting base 300. A part of the conductive plate 302 is exposed on the upper surface of the bottom part 300a, and a part 303 protrudes outside from the side wall 300b, and the protruding part is bent vertically to form an external terminal 303 extending downward. On the other hand, a slider 314 made of a metal plate is attached to the rear surface of the collar portion 312 of the rotating body 310. The slider 314 is configured to be in sliding contact with the conductive plate 302 exposed on the upper surface of the bottom portion 300 a so that a pulse signal or a variable resistance detection signal can be taken out from the terminal 303. Further, the conductor 354 embedded in the fixed contact case 350 is electrically connected to the fixed contact 352. A part of the conductor 354 protrudes from the side wall 350a to the outside, and the protruding portion is bent vertically to form an external terminal 355 extending downward. When the operation shaft 340 is pressed in the axial direction, the pressing end 343 presses the movable contact 353, and the movable contact 353 moves to the fixed contact 351 side. When the movable contact 353 comes into contact with the fixed contact 351, the fixed contacts 351 and 352 are brought into conduction, and an ON signal is taken out from the external terminal 355. When the pressing of the operation shaft 340 is released, the operation shaft 340 is pushed back by the spring property of the movable contact 353, and the fixed contacts 351 and 352 become non-conductive.

When attaching the rotary electric part with push switch configured as described above to the printed circuit board, the external terminals 303 and 355 are inserted into the holes provided on the printed circuit board side, and the terminal tip portion protruding from the back surface of the printed circuit board is inserted. Solder.
JP-A-11-96855

  However, when the conventional rotary electrical component with a push switch is to be surface-mounted on a printed circuit board, the following problems occur. That is, for surface mounting, the external terminal 303 on the mounting base 300 side is horizontally bent at the lower surface position of the fixed contact case 350 serving as the board mounting position to form a surface mountable shape. The terminal 355 is bent horizontally at the lower surface position of the fixed contact case 350 serving as a board mounting position to form a surface mountable shape. Then, the external terminals 303 and the external terminals 355 having a shape that can be surface-mounted at the lower surface position of the fixed contact case 350 are soldered to the printed circuit board. For this reason, when the height dimensions of the external terminals 303 and 355 are shifted and the flatness with respect to the printed circuit board is deteriorated, a problem in surface mounting occurs such that the operation shaft does not stand perpendicular to the printed circuit board.

  However, since the height of the external terminal 355 of the fixed contact case 350 is determined with reference to the rear surface of the mounting base 300, the external terminal 355 includes a shape error including two parts of the mounting base 300 and the fixed contact case 350. Therefore, sufficient height accuracy could not be realized for the external terminal 355 of the fixed contact case 350.

  The present invention has been made in view of the above points, and can improve the height accuracy of the terminal on the rotating electrical component side and the terminal on the push switch side, and can realize excellent surface mounting. The purpose is to provide.

  The rotary electrical component with a push switch according to the present invention includes an operation shaft, a bearing member that supports the operation shaft so that the operation shaft can be rotated and pressed, a rotation member that is coaxially engaged with the operation shaft, A sliding contact that rotates integrally with the rotating member as the operating shaft rotates, and a conductive pattern that slides on the sliding contact are formed, and at least a part of the rotating member on which the sliding contact is disposed is provided. A first case to be stored, a movable contact disposed on the opposite side of the first case from the side on which the rotating member is stored, and opposed to the movable contact that is pressed by a pressing operation of the operation shaft. A second case provided with a fixed contact to be arranged; a first terminal for surface mounting that is electrically connected to the conductive pattern and led out from a case outer edge of the first case to a surface mounting position; Fixed contact and continuity In addition, the case outer edge portion of the first case is a second surface mount for the surface mounting derived from the case outer edge portion of the second case located on the opposite side across the axis of the operation shaft to the surface mounting position. And a part of the case is in contact with the bearing member on the first terminal lead-out side, and the second case is part of the case on the second terminal lead-out side. It abuts on the member.

  According to this configuration, a part of the case comes into contact with the predetermined surface of the bearing member on the first terminal lead-out side, and the second case is a part of the case on the second terminal lead-out side. Is in contact with a predetermined surface of the bearing member, so that the height dimension of the first case and the first terminal is the same as the height dimension of the second case and the second terminal. If set, the first terminal and the second terminal can be dimensioned as a single part based on the bearing member which is the same member, and the height accuracy of the terminal can be improved.

  According to the present invention, in the rotary electrical component with a push switch, the second case has a protrusion that extends from the case outer edge portion on the second terminal lead-out side to the bearing member side and contacts the bearing member. And the first case has a terminal lead-out portion for guiding the first terminal to a surface mounting position at a case outer edge portion on the first terminal lead-out side and sandwiches the axis of the operation shaft. An avoiding portion for avoiding interference with the protruding portion is formed at a position opposite to the terminal lead-out side.

  With this configuration, the projecting portion extending from the case outer edge portion on the second terminal lead-out side of the second case to the bearing member side abuts on the bearing member without interfering with the avoidance portion of the first case, and the dimension is determined. On the other hand, the first terminal is led to the surface mounting position by the terminal lead-out portion from the case outer edge portion on the first terminal lead-out side of the first case. Accordingly, it is possible to obtain a dimension based on the bearing member with a simple configuration.

  In the rotating electrical component with a push switch according to the present invention, it is preferable that at least one pair of the projecting portions is provided across the second terminal, and at least one pair of the avoiding portions is provided corresponding to the projecting portions. Thereby, since it positions on both sides of the 2nd terminal, the improvement of the height accuracy of the 2nd terminal can be aimed at.

  The rotary electrical component with a push switch according to the present invention includes an attachment plate having an attachment arm portion for holding the bearing member, the first case, and the second case, and the second case is the first case. A concave portion is formed in a region corresponding to a bending position of the mounting arm portion, and the mounting arm portion is bent at a rear surface position of the second case. The mounting arm portion that is folded into the concave portion and is bent may be configured not to protrude rearward in the axial direction of the operation shaft from the first terminal and the second terminal. Thereby, the lifting of the terminal can be suppressed by the mounting plate, and each member is firmly held and fixed, so that the play between the members can be removed and the height accuracy of the terminal can be maintained.

  In the rotary electrical component with a push switch according to the present invention, the mounting plate includes a projection for positioning with respect to a printed circuit board, and the axis line at a position closer to the second case than the first terminal and the second terminal. And a reinforcing member bent in a direction perpendicular to the direction. Thereby, it can position easily with respect to a printed circuit board, and can aim at the improvement of the attachment strength by a reinforcement member.

  In the rotary electrical component with a push switch according to the present invention, the bearing member is formed with a flat surface perpendicular to the axial direction at a portion where the first case and the second case abut each other. It is desirable to make it. Thereby, the precision of dimensioning on the basis of the bearing member can be improved by receiving a part of the case with a flat surface.

  ADVANTAGE OF THE INVENTION According to this invention, the height precision of the terminal of a rotary electrical component and the terminal of a push switch can be raised, and favorable surface mounting to a printed circuit board can be implement | achieved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this embodiment, an encoder switch is exemplified as the rotary electrical component, but the present invention can also be applied to a variable resistor that is one of the rotary electrical components.

  FIG. 1 is a cross-sectional view of a rotary electrical component with a push switch according to one embodiment of the present invention, and FIG. 2 is an exploded perspective view of the rotary electrical component with a push switch according to the present embodiment. The operation shaft 1 is supported by the bearing member 2 so as to be capable of rotating and pressing, and the pressing member 3 is attached and fixed to one end portion of the operation shaft 1 (the end portion not protruding from the bearing member 2). A sliding member 5, which is a sliding contact made of a ring-shaped metal plate, is fixed to the rear surface of the rotating member 4, and the rotating member 4 can slide in the axis S direction with respect to the outer peripheral portion of the pressing member 3. Is mounted in a restricted state with respect to the rotational movement about the axis S. Thereby, the rotating member 4 rotates as a unit with respect to the rotating operation of the operating shaft 1, while the operating shaft 1 and the pressing member 3 move relative to the rotating member 4 with respect to the movement of the operating shaft 1 in the axis S direction. It is configured to move relative to the axis S direction.

  A ring-shaped leaf spring 6 is fixed to the lower surface of the bearing member 2, and is disposed opposite to an uneven portion (described later) of the rotating member 4. A shaft stopper 7 is attached to the operation shaft 1. An encoder contact case 8 serving as a first case is attached to the rear surface of the bearing member 2, and the encoder contact case 8 is in a state in which the rear side of the rotating member 4 is rotatably housed and held. Two movable contacts 9a, 9b, which are disc-shaped and made of a metal leaf spring and have a bulged central portion, are installed in a push contact case 10 serving as a second case in a state where two sheets are stacked. The push contact case 10 is disposed on the rear surface of the encoder contact case 8, but a part of the push contact case 10 is attached and fixed directly in contact with the rear surface of the bearing member 2. As described above, in the present embodiment, the encoder contact case 8 and the push contact case 10 are attached and fixed directly in contact with the rear surface of the bearing member 2, respectively. The bearing member 2, the encoder contact case 8, and the push contact case 10 have a rectangular shape with substantially the same outer dimensions, and are integrated by a mounting plate 11 with the rotating member 4 being accommodated in the middle.

Next, the configuration of each part of the rotary electric part with push switch will be described in detail.
As shown in FIGS. 1 and 2, the operation shaft 1 includes an attachment portion 1a to which an operation knob is attached, a shaft support portion 1b having a smaller diameter than the attachment portion 1a and rotatably supported by the bearing member 2, and a shaft support portion. And a non-columnar insertion end 1c integrally formed at one end of 1b. The stepped portion 1d formed by the difference in diameter between the mounting portion 1a and the shaft support portion 1b abuts against the upper end surface of the bearing member 2, thereby restricting movement in the pushing direction.

  FIG. 3 is a perspective view of the bearing member 2 as viewed from the encoder contact case 8 side. The bearing member 2 includes a cylindrical bearing portion 21 having a cylindrical shape and a rectangular reference plate 22 integrally formed on one end surface of the cylindrical bearing portion 21. The length of one side of the case reference plate 22 is set to be substantially the same as the length of one side of the encoder contact case 8 and the push contact case 10. As shown in FIG. 1, the cylindrical bearing portion 21 is formed with a through hole 23 having a diameter suitable for supporting the outer periphery of the shaft support portion 1 b of the operation shaft 1 so as to be rotatable and movable in the axis S direction. A cylindrical storage space having a diameter suitable for rotatably supporting the outer periphery of the rotating member 4 by the inner wall 24 is formed inside the cylindrical bearing portion 21. Further, as shown in FIG. 3, the case reference plate 22 has predetermined shapes at four corners, and the bottom surfaces are formed with concave portions 22a to 22d each having a flat surface perpendicular to the axis S, and two concave portions located on the diagonal line. Case fixing projections 26 and 27 are provided on 22b and 22c. Further, the case reference plate 22 is formed with a circular concave portion 25 having a diameter slightly larger than the diameter of the large-diameter portion of the rotating member 4 in the central portion of the plate. An opening communicating with the through hole 23 is formed at the center of the circular recess 25, and spring fixing protrusions 28a and 28b for fixing the leaf spring 6 are provided at two positions sandwiching the opening. In the present embodiment, since the arrangement of the lower surface of the rectangular reference plate 22 is point-symmetric about the axis S, the encoder contact case 8 and the push contact case 10 are rotated 180 degrees about the axis S. It can also be installed in the opposite direction. In this way, by making it possible to mount in the opposite direction, it is possible to improve the assemblability.

  By inserting the spring fixing convex portions 28a and 28b of the circular concave portion 25 into the holes 6a and 6b provided in the plate spring 6 shown in FIG. Fixed to the recess 25). The ring-shaped leaf spring 6 has a shape slightly bent toward the rotating member 4 along the center line, and a convex portion 6c protruding toward the rotating member 4 is formed at the bent portion.

  As shown in FIGS. 1 and 2, the pressing member 3 has a bottomed cylindrical body, and a protruding portion 31 that contacts the movable contacts 9 a and 9 b at a point is provided at the bottom end portion. On the outer peripheral surface of the pressing member 3, a pair of convex bodies 32a and 32b are formed in the vertical direction. The pressing member 3 is slidable in the direction of the rotation axis with respect to the rotating member 4 by the convex bodies 32a and 32b, but can be fitted so that the rotating operation is restricted. A hole 33 into which the insertion end 1 c of the operation shaft 1 is press-fitted is formed at the center of the pressing member 3. The rotating member 4 includes a cylindrical portion 35 in which a through-hole 34 that fits with the outer peripheral surface of the pressing member 3 is formed, and a click member that is integrally formed at one end of the cylindrical portion 35 and that has uneven portions 36 formed radially. And a joint portion 37. The cylindrical portion 35 is set to have a diameter that fits in a freely rotatable manner with respect to the inner wall 24 that forms the cylindrical storage space of the bearing member 2. The click engaging portion 37 and the leaf spring 6 constitute a click mechanism in which the convex portion 6 c of the leaf spring 6 slides while engaging with the concave and convex portion 36 according to the rotation operation of the rotating member 4. An outer peripheral wall 38 extends downward from the lower surface of the rotating member 4, and a space 39 is secured between the outer peripheral wall 38 and the bottom surface of the encoder contact case 8. The sliding member 5 is caulked and fixed to the lower surface of the rotating member 4 using this space 39. The sliding member 5 shown in this example has three sliders 41. The slider 41 is in sliding contact with a conductive pattern 59 made of a metal plate formed on the bottom surface of the encoder contact case 8 described later.

  2 shows a state when the encoder contact case 8 is viewed from the bearing member 2 side, and FIG. 4 shows a perspective view of the encoder contact case 8 when viewed from the push contact case 10 side. The configuration of the upper surface side of the encoder contact case 8 will be described with reference to FIG. The encoder contact case 8 has a through-hole 51 through which the pressing member 3 is inserted. A bottom portion 52 surrounding the through hole 51 in an annular shape is formed, and the conductive pattern 59 is formed on the annular bottom portion 52. An inner wall 53 extending vertically upward from the bottom 52 is formed around the annular bottom 52. The inner wall 53 is set to substantially the same height as the thickness of the click engagement portion 37 that is the large-diameter portion of the rotating member 4, and the rotating member 4 disposed on the annular bottom 52 can freely rotate in the axis S direction. It is made to be held in.

  The encoder contact case 8 has a substantially rectangular shape, and a pair of projecting portions 54a and 54b are formed on both sides of a case outer edge portion 8a forming one side thereof. The protrusions 54a and 54b have the same shape as the recesses 22b and 22d formed at the corners of the case reference plate 22 of the bearing member 2 shown in FIG. 3, and are flat surfaces of the recesses 22b and 22d of the case reference plate 22. Abut. Holes 55a and 55b having a diameter capable of press-fitting the case fixing convex portions 26 and 27 of the bearing member 2 are formed in the protruding portions 54a and 54b. At the time of assembly, the protrusions 54a and 54b of the encoder contact case 8 are brought into contact with the recesses 22b and 22d of the bearing member 2, and the case fixing protrusion 26 of the recess 22b is press-fitted into the hole 55a of the protrusion 54a. Further, the case outer edge 8a in which the protrusions 54a and 54b are formed in the encoder contact case 8 is pushed through the through hole 51, that is, both ends of the case outer edge 8b on the opposite side across the axis S of the operation shaft 1 are pushed. Cut-off portions 56a and 56b are formed as avoidance portions cut off in order to avoid interference with two projecting portions, which will be described later, extending from the contact case 10. It should be noted that the avoiding portion only needs to be configured so as to avoid interference with two protrusions to be described later that extend from the push contact case 10, and instead of the cut-off portions 56a and 56b, it is a through hole or a notch portion. May be.

The configuration of the lower surface side of the encoder contact case 8 will be described with reference to FIG.
A pair of case fixing convex portions 57 a and 57 b are provided on the lower surface of the encoder contact case 8 with the through hole 51 interposed therebetween. A terminal lead-out portion 58 which is a terminal lead-out portion extending vertically downward is provided on the case outer edge portion 8a of the encoder contact case 8 sandwiched between the protruding portions 54a and 54b. As shown in FIG. 1, the terminals 59a to 59c, which are the first terminals passing through the inside of the terminal extraction portion 58, are exposed to the outside from the end surface 58a on the back side (rear side) of the terminal extraction portion 58 that is the surface mounting position. It is taken out, bent horizontally along the end surface 58a, and folded upward along the outer surface of the terminal extraction portion 58 at the end of the end surface 58a. A portion parallel to the end surface 58a of the terminal extraction portion 58 becomes a contact surface that contacts the printed circuit board. Each of the terminals 59 a to 59 c is electrically connected to a conductive pattern 59 formed on the bottom 52 of the encoder contact case 8.

  FIG. 2 shows a state of the push contact case 10 viewed from the bearing member 2 side (front side), and FIG. 5 shows a perspective view of the push contact case 10 viewed from the rear side. The configuration of the upper surface side of the push contact case 10 will be described with reference to FIG. A circular recess 61 in which the movable contacts 9 a and 9 b are installed is formed on the upper surface of the push contact case 10. Fixed contacts 62 and 63 made of a metal plate are provided at the center and peripheral edge of the circular recess 61. By installing the movable contacts 9a and 9b in the circular recess 61, the peripheral portions of the movable contacts 9a and 9b and the fixed contact 63 are brought into conductive contact as shown in FIG. A pair of holes 64 a and 64 b are formed on the upper surface of the push contact case 10 with the circular recess 61 interposed therebetween. Case fixing convex portions 57b and 57a provided on the lower surface of the encoder contact case 8 are press-fitted into the holes 64a and 64b, and the encoder contact case 8 and the push contact case 10 are positioned and fixed.

  Further, the push contact case 10 has a substantially rectangular shape, and is a case outer edge portion that forms one side of the push contact case 10, and is formed on the opposite side of the case outer edge portion 10a across the axis S from the lead-out side of the terminals 59a to 59c. A pair of protrusions 65a and 65b extending vertically upward at both ends are formed. When the protrusions 65 a and 65 b are combined with the encoder contact case 8, the protrusions 65 a and 65 b pass by the side of the cut-off portions 56 a and 56 b and come into contact with the recesses 22 a and 22 c on the lower surface of the case reference plate 22 of the bearing member 2. The shape of the upper end surfaces of the protrusions 65a and 65b and the planar shape of the recesses 22a and 22c are matched. Holes 66a and 66b are formed in the upper end surfaces of the protrusions 65a and 65b. The protrusions 65a and 65b of the push contact case 10 are brought into contact with the recesses 22a and 22c of the case reference plate 22 of the bearing member 2, and the case fixing protrusion 27 of the recess 22c corresponding to the hole 66b of the protrusion 65b is provided. By press-fitting, the push contact case 10 is positioned and fixed to the case reference plate 22 of the bearing member 2.

The configuration of the lower surface side of the push contact case 10 will be described with reference to FIG.
A terminal extraction portion 67 is provided on the case outer edge portion 10 a of the push contact case 10. The terminal extraction part 67 is provided on the outer edge of the case on the opposite side of the axis S from the terminal extraction part 58 of the encoder contact case 8 when the push contact case 10 is assembled to the encoder contact case 8. The terminals 68a and 68b that pass through the inside of the terminal extraction portion 67 are taken out from the end surface 67a on the back side (rear side) of the terminal extraction portion 67 that is the surface mounting position, bent horizontally along the end surface 67a, and end surfaces It is folded upward along the outer surface of the terminal extraction part 67 at the end of 67a. The terminals 68a and 68b serve as contact surfaces at which portions parallel to the end surface 67a of the terminal extraction portion 67 come into contact with the printed circuit board. The terminals 68 a and 68 b are electrically connected to fixed contacts 62 and 63 formed in the circular recess 61 of the push contact case 10. In addition, positioning protrusions 69 and 71 are provided on the rear surface of the push contact case 10 to be inserted into holes on the printed circuit board side.

  As shown in FIG. 2, the mounting plate 11 has four mounting pieces 71 a to 71 d serving as positioning protrusions extending downward, and has a central portion that is larger than the diameter of the cylindrical bearing portion 21 of the bearing member 2. The opening 72 is shorter than one side of the reference plate 22 for use. Mounting arm portions 73 a to 73 d extend downward from two opposing side surfaces of the mounting plate 11. Reinforcing members 74a and 74b, which are bent outward from the lower end portions, are provided on the side surfaces on which the attachment arm portions 73a to 73d are formed. The mounting plate 11 is engaged with the upper surface (front surface) of the case reference plate 22 through the cylindrical bearing portion 21 of the bearing member 2 in the opening 72, and the encoder contact case 8 and the push contact case 10 are mounted on the rear surface of the bearing member 2. In the assembled state, the mounting arm portions 73a to 73d are bent to the lower surface side (rear surface side) of the push contact case 10 to integrate the whole. As described above, the bearing member 2, the encoder contact case 8 and the push contact case 10 are firmly sandwiched from above and below by the mounting plate 11, so that the backlash between the members can be removed and the accuracy in the height direction (axis S direction) can be eliminated. Can be improved. Further, by providing the reinforcing members 74a and 74b, it is possible to increase the attachment strength when the surface mounting to the printed board.

  FIG. 6 is a bottom view (bottom view) with the mounting plate 11 attached. The attachment arm portions 73a to 73d are bent to the rear surface side of the push contact case 10 and dropped into the corresponding concave portions 81a to 81d. By dropping the mounting arm portions 73a to 73d into the concave portions 81a to 81d, the mounting arm portions 73a to 73d bent to the rear surface side of the push contact case 10 are rearward in the axis S direction with respect to the terminals 59a to 59c and 68a and 68b. In other words, the rotating electrical component with the push switch is prevented from projecting to the printed circuit board side. Similarly, the height of the reinforcing members 74a and 74b bent in the direction perpendicular to the axis S is set so as not to protrude toward the printed circuit board from the terminals 59a to 59c and 68a and 68b. As a result, the mounting arm portions 73a to 73d and the reinforcing members 74a and 74b do not protrude toward the printed circuit board from the terminals 59a to 59c and 68a and 68b, so the mounting arm portions 73a to 73d and the reinforcing members 74a and 74b are connected to the terminals. It can prevent hitting the printed circuit board which is a mounting board before 59a-59c and 68a, 68b.

  7 is a cross-sectional view taken along the line AA shown in FIG. 6 with the operating shaft 1 omitted, and FIG. 8 is a cross-sectional view taken along the line BB in FIG. 6 showing the encoder contact case 8 and the push contact case 10. is there. As shown in FIG. 7, the protruding portion 65 b of the push contact case 10 passes through the side of the cut-off portion 56 b of the encoder contact case 8 and contacts the recess 22 c of the case reference plate 22 of the bearing member 2. Although not shown in FIG. 7, the other protrusion 65 a of the push contact case 10 also passes by the side of the cut-off portion 56 a of the encoder contact case 8 and is in contact with the recess 22 a of the case reference plate 22. On the other hand, a terminal 68b (68a) bent horizontally along the end surface 67a of the terminal extraction portion 67 provided integrally with the case outer edge portion 10a of the push contact case 10 is in contact with the printed circuit board surface during surface mounting. Become.

  Therefore, the push contact case 10 is a single component (push contact case 10) based on the case reference plate 22 (recess 22a, 22c) of the bearing member 2 with which the tip ends of the protrusions 65a, 65b are in contact. Dimensions can be calculated. Since the terminals 68a and 68b of the push contact case 10 can be dimensioned with one component, the height accuracy can be improved as compared with the conventional case of dimensioning with two components. Further, in the push contact case 10, the lead-out side of the terminals 68a and 68b and the contact side to the case reference plate 22 (recesses 22a and 22c) are the same case outer edge portion 10a. The height accuracy can be further increased. In addition, since the pair of protrusions 65a and 65b disposed on both sides of the terminals 68a and 68b are brought into contact with the case reference plate 22 (recesses 22a and 22c) of the bearing member 2, they are abutted in parallel without being inclined. And accuracy can be improved. Further, since the contact surfaces (concave portions 22a and 22c) with which the projecting portions 65a and 65b contact are flat surfaces perpendicular to the contact direction (axis S direction), the positional accuracy is higher than that in the case where the contact is made obliquely. Can be realized.

  Further, as shown in FIG. 7, the protruding portion 54 b of the encoder contact case 8 is in contact with the bottom surface of the recess 22 d that is a flat surface of the case reference plate 22. Although not shown in FIG. 7, the other protrusion 54 a of the encoder contact case 8 is also in contact with the bottom surface of the recess 22 b that is a flat surface of the case reference plate 22. On the other hand, the terminal extraction portion 58 provided integrally with the case outer edge portion 8a (FIG. 2) of the encoder contact case 8 extends downward along the side surface of the push contact case 10, and the end surface 58a is located at the surface mounting position. . As shown in FIG. 8, the terminals 59c (59b, 59a) led out from the end surface 58a of the terminal extraction portion 58 of the encoder contact case 8 and bent horizontally along the end surface 58a are formed on the printed circuit board surface during surface mounting. You will be in touch.

  Therefore, the encoder contact case 8 is dimensioned by one component (encoder contact case 8) with reference to the case reference plate 22 (recess 22b, 22d) of the bearing member 2 with which the tip ends of the protrusions 54a, 54b are in contact. It can be taken out.

  As shown in FIG. 5, the distance W1 from the tips of the protrusions 65a, 65b, which are the contact positions of the push contact case 10 to the case reference plate 22, to the lower ends of the terminals 68a, 68b, which are the surface mounting positions, It is defined only by the thickness of the push contact case 10 and the thickness of the terminals 68a and 68b made of a metal plate. Also, as shown in FIG. 4, the distance W2 from the tips of the protrusions 54a, 54b, which are the contact positions of the encoder contact case 8 to the case reference plate 22, to the lower ends of the terminals 59a-59c, which are the surface mounting positions. Is defined only by the thickness of the encoder contact case 8 and the thickness of the terminals 59a to 59c made of a metal plate. By mounting the encoder contact case 8 and the push contact case 10 including the protrusions 54a, 54b, 65a, 65b so that W1 and W2 have the same distance, surface mounting on the printed circuit board surface is performed. The heights of the terminals 59a to 59c of the encoder contact case 8 and the terminals 68a and 68b of the push contact case 10 with respect to the position can be matched.

  As described above, according to the present embodiment, the push contact case 10 disposed on the lower side contacts the case reference plate 22 with the protruding portions 65a and 65b passing through the cut portions 56a and 56b of the encoder contact case 8. The encoder contact case 8 disposed on the upper side extends the integrated terminal extraction portion 58 through the side surface of the push contact case 10 to the lower surface position of the push contact case 10 and the protrusions 54a, 54b is applied to the case reference plate 22 to set the height with respect to the printed circuit board surface. Thus, even in the structure in which the encoder contact case 8 and the push contact case 10 are laminated, the height W2 composed of the encoder contact case 8 and its terminals 59a to 59c, the push contact case 10 and its terminals 68a, Since the height dimension W1 composed of 68b is set to the same dimension, and the encoder contact case 8 and the push contact case 10 are brought into contact with the same surface of the bearing member 2, the terminals 59a to 59c of both cases 8, 10 are provided. 68a and 68b can be dimensioned by one part based on the same member, and high height accuracy can be realized.

  The present invention has a function as a push switch and a function as a rotary electrical component, and is applicable to a rotary electrical component with a push switch that is surface-mounted on a printed circuit board.

Sectional drawing of rotating electrical component with push switch according to one embodiment Exploded perspective view of a rotary electrical component with a push switch of the above embodiment The perspective view which looked at the bearing member from the encoder contact case side A perspective view of the encoder contact case as seen from the push contact case side A perspective view of the push contact case as seen from the rear side opposite to the encoder contact case Bottom view of rotating electrical component with push switch with mounting plate attached 6 is a cross-sectional view taken along line AA in FIG. BB sectional view in FIG. 6 showing the encoder contact case and the push contact case Sectional view of a conventional rotary electrical component with a push switch

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Operation shaft 1a Mounting part 1b Shaft support part 1c Insertion end part 1d Step part 2 Bearing member 3 Pressing member 4 Rotating member 5 Sliding member (sliding contact) 6 Leaf spring 6c Convex part 7 Shaft stop 8 Encoder contact case (1st Case)
10 Push contact case (second case)
9a, 9b Movable contact 11 Mounting plate 21 Cylindrical bearing 22 Case reference plate 22a-22d Recess 23 Through hole 24 Inner wall 25 Circular recess 26, 27 Case fixing protrusion 28a, 28b Spring fixing protrusion 31 Projection 32a, 32b convex body 33 hole 34 through hole 35 cylindrical part 36 uneven part 37 click engagement part 38 outer peripheral wall 39 space 41 slider 51 through hole 52 annular bottom 53 inner wall 54a, 54b protruding part 55a, 55b hole 56a, 56b Cut-off part (avoidance part)
57a, 57b Case fixing convex portion 58 Terminal lead-out portion (terminal lead-out portion)
58a End face 59 Conductive pattern 59a to 59c Terminal (first terminal)
61 Circular recess 62, 63 Fixed contact 64a, 64b Hole 65a, 65b Projection part 66a, 66b Hole 67 Terminal extraction part 67a End face 68a, 68b Terminal (second terminal)
71a-71d Mounting piece (projection) 72 Circular opening 73a-73d Mounting arm 74a, 74b Reinforcing member 81a-81d Recess

Claims (6)

An operating axis;
A bearing member that supports the operation shaft so as to be capable of rotating and pressing; and
A rotating member coaxially engaged with the operation shaft;
A sliding contact that rotates integrally with the rotating member as the operating shaft rotates;
A first case that houses at least a part of the rotating member in which a conductive pattern is formed in sliding contact with the sliding contact, and the sliding contact is disposed;
A movable contact that is pressed by a pressing operation of the operation shaft and a fixed contact that is disposed to face the movable contact are provided at a rear portion of the first case opposite to the side where the rotating member is stored. The second case,
A first terminal for surface mounting that is electrically connected to the conductive pattern and led out from a case outer edge of the first case to a surface mounting position;
Surface mounting led to the surface mounting position from the case outer edge portion of the second case, which is electrically connected to the fixed contact and located on the opposite side of the case outer edge portion with respect to the axis of the operation shaft. A second terminal for,
In the first case, a part of the case abuts on the bearing member on the first terminal lead-out side, and a part of the case abuts on the bearing member on the second terminal lead-out side. A rotating electrical component with a push switch.   The second case has a protrusion that extends from the case outer edge of the second terminal lead-out side toward the bearing member and contacts the bearing member, and the first case includes the first terminal. There is a terminal lead-out portion for guiding the first terminal to the surface mounting position at the outer edge of the case on the lead-out side, and the projecting portion at a position opposite to the first terminal lead-out side across the axis of the operation shaft The rotating electrical component with a push switch according to claim 1, wherein an avoidance portion for avoiding interference is formed.   3. The rotary electrical component with push switch according to claim 2, wherein at least one pair of the projecting portions is provided across the second terminal, and at least one pair of the avoiding portions is provided corresponding to the projecting portions.   A mounting plate having mounting arm portions for holding the bearing member, the first case, and the second case, the second case being a rear surface opposite to the front surface facing the first case; The recessed portion is formed in a region corresponding to the bending position of the mounting arm portion, the mounting arm portion is folded at the rear surface position of the second case, folded into the concave portion, and folded. The rotary type with a push switch according to any one of claims 1 to 3, wherein a portion does not protrude in the axial direction of the operation shaft from the first terminal and the second terminal. Electrical component.   The mounting plate includes a protrusion for positioning with respect to a printed circuit board, and a reinforcement bent in a direction perpendicular to the axial direction at a position closer to the second case than the first terminal and the second terminal. 5. The rotary electrical component with push switch according to claim 4, further comprising a member. 6. The bearing member according to claim 1, wherein a flat surface perpendicular to the axial direction is formed at a portion where the first case and the second case contact each other. A rotary electrical component with a push switch according to any one of the above.

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