JP6399908B2 - Multi-directional switch - Google Patents

Description

  The present invention relates to a multidirectional switch.

  A multidirectional switch is known as a switch mounted on a device such as a mobile phone, a portable stereo, a video camera, a digital camera, and an in-vehicle audio.

  Patent Document 1 describes a multidirectional switch that includes a cover, an operating body, and a board provided with a switch element that emits a different signal according to various operations of the operating body. The operation body can be pressed, and can be swung in each direction around the contact portion by contacting the tact spring of the switch element.

  The cover of the multi-directional switch and the operating body slide with each other so as not to prevent the swinging of the operating body during non-pressing operation, and with each other so as to prevent the operating body from further swinging during the pressing operation. Designed to collide.

JP 2005-243320 A

  However, if the position of the swing shaft of the operating body is not sufficiently fixed, the swinging trajectory will not be stable, and the contact portions provided on the operating body and other members will not contact each other as desired. There is.

  Accordingly, an object of the present invention is to provide a multidirectional switch that can solve the above-described problems.

  Another object of the present invention is to provide a multidirectional switch having a prevention mechanism that reliably prevents swinging when the operating body is pressed and prevents pressing when the operating body is swinging.

  The multi-directional switch according to the present invention is engaged with an elastic member having a recess, and is supported so as to be swingable about an engagement portion with the recess, and the first pressing portion and the second pressing portion are provided. When the operating member has a pressing switch member that is turned on and off by the first pressing portion when the operating member is pressed in the displacement direction of the elastic member, and the operating member is swung around the engaging member with the recess Further, a swing switch member that is turned on and off by the second pressing portion, a holding member that holds a part of the first pressing portion to prevent swinging of the operating member when the operating member is pressed, and when the operating member swings In order to prevent the operation member from being pressed, a contact member that contacts a part of the first pressing portion is provided.

  In the above multidirectional switch, the operation member preferably has a convex portion that engages with the concave portion.

  The multi-directional switch preferably further includes a second elastic member that biases the operation member against the swinging of the operation member.

  In the above multidirectional switch, it is preferable that the elastic member and the second elastic member are integrally formed.

  The multi-directional switch has a through hole for the second pressing portion, includes a holding member and a contact member, holds an elastic member, and includes an operation member, a push switch member, and a swing switch member. It is preferable to further have a substrate disposed therebetween.

  According to the present invention, it is possible to provide a multidirectional switch having a prevention mechanism that reliably prevents a swing when the operating body is pressed and prevents a press when the operating body swings.

(A) is a top view of the multidirectional switch 1 which concerns on this invention, (b) is a back view of the multidirectional switch 1. FIG. 1 is an exploded perspective view of a multidirectional switch 1. FIG. 3 is a perspective view of a cover 20. FIG. (A) is a top perspective view of the operating body 30, (b) is a rear perspective view of the operating body 30, and (c) is a cross section taken along line EE ′ shown in (a) of the operating body 30. FIG. (A) is the perspective view of the action | operation spring 40, (b) is the figure which looked at the action spring 40 from the direction G shown to (a). (A) is a perspective view of case 50, (b) is sectional drawing along the H-H 'line | wire shown to (a) of case 50. FIG. It is a top view of the board | substrate 60 with a dome shape spring. It is a figure for demonstrating a wiring pattern. It is a figure for demonstrating the structure at the time of non-operation of the multidirectional switch. It is a figure for demonstrating the structure at the time of non-operation of the multidirectional switch. It is a figure for demonstrating operation | movement of the multidirectional switch 1 at the time of operation of the 1st operation part 33A. It is a figure for demonstrating operation | movement of the multidirectional switch 1 at the time of operation of the 2nd operation part 33B. It is a figure for demonstrating operation | movement of the multidirectional switch 1 at the time of operation of the 3rd operation part 33C.

  Hereinafter, a multidirectional switch according to the present invention will be described in detail with reference to the accompanying drawings. However, it should be noted that the technical scope of the present invention is not limited to these embodiments, but extends to the invention described in the claims and equivalents thereof.

  FIG. 1A is a plan view of a multidirectional switch 1 according to the present invention, and FIG. 1B is a back view of the multidirectional switch 1. FIG. 2 is an exploded perspective view of the multidirectional switch 1.

  The multidirectional switch 1 has a substantially rectangular parallelepiped shape, and an operation body having a first operation portion 33A, a second operation portion 33B, and a third operation portion 33C from a through hole 24 provided in the cover 20 on the upper surface. 30 operation units 32 are peeping. The operating spring 40 is placed in the recess 53 of the case 50, and the operating body 30 is placed thereon. Further, the cover 20 is attached to the case 50 by fitting the protrusion 52a into the through hole 23a, the protrusion 52a into the through hole 23a, the protrusion 52a into the through hole 23a, and the protrusion 52a into the through hole 23a. The operation portion 32 of the operation body 30 slightly protrudes from the through hole 23 of the cover 20.

  FIG. 3 is a perspective view of the cover 20.

  The cover 20 includes a plate portion 21 provided with a substantially square through hole 24 in the center, and four ribs 22a, 22b, 22c, and 22d (see FIG. 1C). The ribs 22a and 22b extend from the plate portion 21 in the vicinity of both end portions of one side of the periphery in the longitudinal direction of the plate portion 21, and further, the rib 22c is located at a position substantially symmetrical to the rib 22a on the opposite side of the one side. However, the ribs 22d extend from the plate portion 21 at positions substantially symmetrical to the ribs 22b. The rib 22a has a through hole 23a, the rib 22b has a through hole 23b, the rib 22c has a through hole 23c, and the rib 22d has a through hole 23d. The cover 20 is made of metal, for example.

  4A is a top perspective view of the operating body 30, FIG. 4B is a rear perspective view of the operating body 30, and FIG. 4C is an E view of the operating body 30 shown in FIG. It is sectional drawing along line -E '.

  The operating body 30 includes a substantially plate-shaped base 31, a substantially rectangular parallelepiped operating portion 32 provided on the upper surface of the base 31, and a first pressing portion 34A and second pressing portions 34B, 34C provided on the back surface of the base 31. It consists of. 34 A of 1st press parts are arrange | positioned in the approximate center of the back surface of the base 31, and 2nd press parts 34B and 34C are arrange | positioned so that the 1st press part 34A may be pinched | interposed along a longitudinal direction. The first pressing portion 34A is formed by providing a protrusion 34A2 on a substantially columnar base portion 34A1, and the second pressing portions 34B and 34C are protruding.

  On the upper surface of the operation unit 32, a first operation unit 33A is provided in a substantially central position, and a second operation unit 33B and a third operation unit 33C are provided in a protruding shape on both sides in the longitudinal direction across the first operation unit. It has been. Raised portions 35 a and 35 b are provided on both sides of the first operation portion 33 </ b> A on the upper surface of the base 31. In the base portion 34A1, the surface on which the protrusion 34A2 is provided is configured as a curved surface 34Aa, and further, a surface 34Ab that is in contact with the surface 34Aa and is substantially perpendicular to the base 31 on the second pressing portion 34B side, and the surface 34Aa. A surface 34Ac substantially perpendicular to the base 31 is provided on the second pressing portion 34C side in contact therewith. Protrusions 36a and 36b are provided on both sides of the first pressing portion 34A in the short direction. 4C, the distance from the upper surface of the base 31 to the tip of the first pressing portion 34A is the distance from the upper surface of the base 31 to the tip of the second pressing portion 34B or 34C. Greater than distance. The operating body 30 is made of resin, for example.

  5A is a perspective view of the operating spring 40, and FIG. 5B is a view of the operating spring 40 as viewed from the direction G shown in FIG. 5A.

  The operating spring 40 includes bases 41 and 42, two arched plate springs 43a and 43b as first elastic members, two planar plate springs 41a and 41b as second elastic members, and a third Two flat upper leaf springs 42a and 42b as elastic members are integrally formed. In the operating spring 40, thin and thin substantially plate-like base portions 41 and 42 are arranged in parallel to each other, and arch-like plate springs 43a and 43b are connected to the base portions 41 and 42 substantially vertically in a plan view.

  A recess 43aR is provided at the apex of the arch of the arched plate spring 43a, and a recess 43bR is provided at the apex of the arch of the arched plate spring 43b. The planar leaf springs 41a and 41b extend from the end of the base 41 substantially in parallel with the arched leaf springs 43a and 43b in a plan view, respectively, and the planar leaf springs 42a and 42b are respectively the ends of the base 42. From the part, it extends | stretches substantially parallel to the arch-shaped leaf | plate springs 43a and 43b in planar view.

  A surface 41aC substantially parallel to the surface of the base 41 is provided at the end opposite to the side connected to the base 41 of the planar leaf spring 41a, and the side connected to the base 41 of the planar leaf spring 41b. A surface 41bC substantially parallel to the surface of the base 41 is provided at the opposite end. Similarly, a surface 42aC substantially parallel to the surface of the base 42 is provided at the end opposite to the side connected to the base 42 of the planar leaf spring 42a, and is connected to the base 42 of the planar leaf spring 42b. A surface 42bC that is substantially parallel to the surface of the base 42 is provided at the end opposite to the above-mentioned side. In the multidirectional switch according to the present invention, the number of the first elastic members may be one or three or more, and the number of the second elastic members may be one or three or more. The number of the third elastic members may be one or three or more. Further, the surfaces 41aC, 41bC, 42aC, and 42bC may have an R shape instead of being substantially parallel to the surface of the base portion 41 in order to reduce friction with the operating body 30 when the multidirectional switch 1 is operated. Good.

  FIG. 6A is a perspective view of the case 50, and FIG. 6B is a cross-sectional view of the case 50 taken along the line H-H 'shown in FIG.

  The case 50 has a structure in which a frame 52 is erected in a substantially square shape in plan view in the vicinity of the outer periphery of the case substrate 51, and a recess 53 is formed by the case substrate 51 and the frame 52. Protrusions 52a and 52b are provided in the vicinity of both ends on one surface of the outer circumferential surface of the frame 52 in the longitudinal direction, and the projection 52c is located at a position substantially symmetrical to the projection 52a on the opposite longitudinal outer circumferential surface. And 52d are provided at substantially symmetrical positions.

  The case substrate 51 is provided with a substantially rectangular through hole 54A at a substantially center, and further, substantially circular through holes 54B and 54C are provided so as to sandwich the through hole 54A. Tabs 55 and 56 are provided at the edge of the through hole 54A. The tab 55 is provided with a surface 55a that is substantially perpendicular to the case substrate 51 and a surface 55b that has an inclination of about 45 degrees with respect to the case substrate 51 and continues to the surface 55a. The tab 56 is provided with a surface 56a that is substantially perpendicular to the case substrate 51 and a surface 56b that has an inclination of about 45 degrees with respect to the case substrate 51 and continues to the surface 56a.

  The surface 55a and the surface 56a function as a holding member that holds a part of the first pressing portion 34A when the operating body 30 is pressed, as will be described later. The shape of the through hole 54A may be changed to another shape such as a circle or a polygon other than a square according to the shape of the first pressing portion 34A, and therefore the shape of the surface 55a and the surface 56a is also penetrated. You may change into those other shapes according to the shape of 54 A of holes.

  As will be described later, the surface 55b and the surface 56b function as contact members that contact a part of the first pressing portion 34A in order to prevent the operation body 30 from being pressed when the operation body 30 swings. The shapes of the surface 55b and the surface 56b may be changed to other shapes such as a spherical shape and a polyhedral shape, for example, in accordance with the shape of the first pressing portion 34A.

  FIG. 7 is a plan view of the dome-shaped spring loaded substrate 60.

  The dome-shaped spring-equipped substrate 60 includes a substrate body 61 having a substantially square shape in plan view, a first switch element 70A as a pressing switch element, and a second switch element 70B and a third switch element 70C as swing switch elements. . Further, a film (not shown) is attached to the top surface of the dome-shaped spring-loaded substrate 60 so as to cover the switch elements in order to protect the first switch element 70A, the second switch element 70B, and the third switch element 70C. ing. Conductive electrodes 78A, 78B, 78C, 79A, 79B, and 79C connected to the upper and lower surfaces of the substrate body 61 are formed in the recesses 62A, 62B, 62C, 63A, 63B, and 63C provided on the outer periphery of the substrate body 61, respectively. ing.

  70 A of 1st switch elements are arrange | positioned in the approximate center of the upper surface of the board | substrate body 61, and also the 2nd switch element 70B and the 3rd switch element 70C hold | maintain the 1st switch element 70A along the longitudinal direction of the board | substrate body 61 upper surface. Has been placed. The first switch element 70A includes a conductive central fixed contact 71A, a conductive peripheral fixed contact 72A, and an edge that contacts the peripheral fixed contact 72A so that the central fixed contact 71A is not touched without touching the central fixed contact 71A. The conductive tact spring 73A is covered (see FIG. 9A).

  The second switch element 70B includes a conductive central fixed contact 71B, a conductive peripheral fixed contact 72B, and a central fixed contact 71B without touching the central fixed contact 71B by bringing the edge into contact with the peripheral fixed contact 72B. The conductive tact spring 73B is covered (see FIG. 9A). The third switch element 70C includes a conductive central fixed contact 71C, a conductive peripheral fixed contact 72C, and a central fixed contact 71C without contacting the central fixed contact 71C by bringing the edge into contact with the peripheral fixed contact 72C. The conductive tact spring 73C is covered (see FIG. 9A).

  FIG. 8 is a diagram for explaining a wiring pattern.

  The central fixed contact 71A is electrically connected to the electrode 78A through a through hole 74A and a wiring pattern 76A provided on the lower surface of the substrate body 61. The peripheral fixed contact 72A is electrically connected to the electrode 79A via a through hole 75A and a wiring pattern 77A provided on the lower surface of the substrate body 61.

  The center fixed contact 71B is electrically connected to the electrode 78B through the through hole 74B and the wiring pattern 76B provided on the lower surface of the substrate body 61. The peripheral fixed contact 72B is electrically connected to the electrode 79B through the through hole 75B and the wiring pattern 77B provided on the lower surface of the substrate body 61.

  The central fixed contact 71C is electrically connected to the electrode 78C through the through hole 74C and the wiring pattern 76C provided on the lower surface of the substrate body 61. The peripheral fixed contact 72C is electrically connected to the electrode 79C through a through hole 75C and a wiring pattern 77C provided on the lower surface of the substrate body 61.

  Next, the structure when the multidirectional switch 1 is not operated will be described with reference to FIGS.

  FIG. 9A is a cross-sectional view of the multidirectional switch 1 taken along the line A-A ′ shown in FIG.

  A first pressing portion 34A is disposed below the first operating portion 33A, and a first switch element 70A is disposed below the first pressing portion 34A. A second pressing portion 34B is disposed below the second operation portion 33B, and a second switch element 70B is disposed below the second pressing portion 34B. A second pressing portion 34C is disposed below the third operation portion 33C, and a third switch element 70C is disposed below the second pressing portion 34C.

  9B is a cross-sectional view of the multidirectional switch 1 taken along line B1-B1 ′ shown in FIG. 1A. FIG. 9C is a cross-sectional view of the multidirectional switch 1 shown in FIG. It is sectional drawing along the B2-B2 'line shown.

  The convex portion 36a of the operating body 30 is engaged with the concave portion 43aR of the arched plate spring 43a, and the arched plate spring 43a has a predetermined distortion in the direction 43aD. The convex portion 36b of the operating body 30 is engaged with the concave portion 43bR of the arched plate spring 43b, and a predetermined distortion is generated in the direction 43bD of the arched plate spring 43b.

  10A is a cross-sectional view of the multidirectional switch 1 taken along the line C1-C1 ′ shown in FIG. 1A, and FIG. 10B is a cross-sectional view of the multidirectional switch 1 shown in FIG. It is sectional drawing along the C2-C2 'line shown.

  The raised portion 35 a of the operation body 30 is in contact with the back surface of the cover 20. The surface 42aC of the planar leaf spring 42a is in contact with the back surface of the operating body 30, and the planar leaf spring 42a has a predetermined distortion in the direction indicated by the arrow 42aD. The raised portion 35 b of the operation body 30 is in contact with the back surface of the cover 20. The surface 41bC of the planar leaf spring 41b is in contact with the back surface of the operating body 30, and the planar leaf spring 41b has a predetermined distortion in the direction indicated by the arrow 41bD.

  10C is a cross-sectional view of the multidirectional switch 1 taken along the line D1-D1 ′ shown in FIG. 1A. FIG. 10D is a cross-sectional view of the multidirectional switch 1 shown in FIG. It is sectional drawing along the D2-D2 'line shown.

  The surface 41aC of the planar leaf spring 41a is in contact with the back surface of the operating body 30, and the planar leaf spring 41a has a predetermined distortion in the direction indicated by the arrow 41aD. The surface 42bC of the planar leaf spring 42b is in contact with the back surface of the operating body 30, and the planar leaf spring 42b has a predetermined distortion in the direction indicated by the arrow 42bD.

  As described above, the arched leaf springs 43a and 43b and the planar leaf springs 41a, 41b, 42a, and 42b are distorted when not operated. Therefore, the arched leaf springs 43a and 43b and the planar leaf springs 41a, 41b, 42a and 42b urge the operating body 30 upward by elastic force to bring the raised portions 35a and 35b into contact with the back surface of the cover 20. ing. Further, the set of the surface 41aC and the surface 41bC and the set of the surface 42aC and the surface 42bC are arranged symmetrically with respect to an axis passing through the convex portions 36a and 36b of the operating body 30.

  Therefore, when the multi-directional switch 1 is not operated, the operating body 30 is biased toward the initial position that is substantially parallel to the dome-shaped spring-equipped substrate 60, so that the substantially parallel state is stable. It is kept in. The position of the operating tool 30 described above is set as the operating tool initial position.

  Next, with reference to FIG. 11, the operation of the multi-directional switch 1 when operating the first operation unit 33A will be described.

  FIG. 11A is a cross-sectional view of the multidirectional switch 1 taken along the line A-A ′ shown in FIG. 1A when the first operation unit 33A is operated.

  When the first operating portion 33A is pressed with a predetermined force, the operating body 30 is pushed down toward the dome-shaped spring-equipped substrate 60. Then, the first pressing portion 34A pushes down the tact spring 73A, and eventually the tact spring 73A reverses and comes into contact with the central fixed contact 71A, whereby the central fixed contact 71A and the peripheral fixed contact 72A become conductive, and the first switch element 70A Turn on.

  Further, as described above, the distance from the upper surface of the base 31 of the operating body 30 to the distal end portion of the first pressing portion 34A is the distance from the upper surface of the base 31 to the distal end portion of the second pressing portion 34B or the second pressing portion 34C. (See FIG. 4C). Therefore, when the first operating portion 33A is operated, the second pressing portion 34B does not reach the tact spring 73B, and the second pressing portion 34C does not reach the tact spring 73C.

  During the operation of the first operating portion 33A, the surface 34Rb of the operating body 30 and the surface 55a of the case 50 partially face each other as shown by the dotted line T1 in FIG. 11A and are surrounded by the dotted line T2. As shown in the part, the surface 34Rc of the operating body 30 and the surface 56a of the case 50 partially face each other. Therefore, even when the operating body 30 tries to swing in the direction R2 around the axis passing through the convex portions 36a and 36b by the operation of the second operating portion 33B, the operating body 30 is brought into contact with the surface 56a. Is prevented from swinging in the direction R2.

  Similarly, even if the operating body 30 tries to swing in the direction R3 about the axis passing through the convex portions 36a and 36b by the operation of the third operating portion 33C, the operating body is caused by the surface 34Rb coming into contact with the surface 55a. 30 is prevented from swinging in the direction R3. Accordingly, the surfaces 55a and 56a function as a swing preventing portion that prevents the operating body 30 from swinging when the first operating portion 33A is operated. In this way, simultaneous operation of the first operation unit 33A and the second operation unit 33B and simultaneous operation of the first operation unit 33A and the third operation unit 33C are prevented.

  FIG. 11B is a cross-sectional view of the multi-directional switch 1 taken along the line B1-B1 ′ shown in FIG. 1A when the first operation unit 33A is operated.

  When the first operating portion 33A is operated, the operating body 30 pushes the concave portion 43aR of the arched plate spring 43a in the direction 43aD via the convex portion 36a, so that the arched plate spring 43a is further distorted. Similarly, when the first operating portion 33A is operated, the operating body 30 pushes down the concave portion 43bR of the arched plate spring 43b in the direction 43bD via the convex portion 36b, so that further distortion occurs in the arched plate spring 43b. (The illustration is omitted).

  FIG. 11C is a cross-sectional view of the multidirectional switch 1 taken along the line C1-C1 ′ shown in FIG. 1A when the first operation unit 33A is operated.

  When the first operating portion 33A is operated, the operating body 30 pushes down the surface 42aC of the planar leaf spring 42a in the direction 42aD, and thus the planar leaf spring 42a is further distorted. Similarly, when the first operating portion 33A is operated, the operating body 30 pushes down the surface 41bC of the planar leaf spring 41b in the direction 41aD, so that further distortion occurs in the planar leaf spring 41b (not shown). . Further, when operating the first operating portion 33 </ b> A, the operating body 30 is pushed down, so that the raised portions 35 a and 36 b are separated from the back surface of the cover 20.

  FIG. 11D is a cross-sectional view of the multidirectional switch 1 taken along the line D1-D1 ′ shown in FIG. 1A when the first operation unit 33A is operated.

  When the first operating portion 33A is operated, the operating body 30 pushes down the surface 41aC of the planar leaf spring 41a in the direction 41aD, and thus the planar leaf spring 41a is further distorted. Similarly, when the first operating portion 33A is operated, the operating body 30 pushes down the surface 42bC of the planar leaf spring 42b in the direction 42aD, so that further distortion occurs in the planar leaf spring 42b (not shown). .

  When the pressing of the first operating portion 33A is stopped, the arched plate springs 43a and 43b and the flat plate springs 41a, 41b, 42a and 42b each lift the operating body 30 by elastic force. Eventually, the operating body 30 returns to the initial position of the operating body in which the raised portions 35 a and 35 b abut against the back surface of the cover 20 and the base 31 is arranged in a state substantially parallel to the dome-shaped spring-equipped substrate 60. On the other hand, the tact spring 73A from which the first pressing portion 34A is separated is canceled by the elastic force and separated from the central fixed contact 71A, so that the continuity between the central fixed contact 71A and the peripheral fixed contact 72A is canceled, and the first The switch element 70A is turned off.

  Next, with reference to FIG. 12, the operation of the multidirectional switch 1 during the operation of the second operation unit 33B will be described.

  FIG. 12A is a cross-sectional view of the multidirectional switch 1 taken along the line A-A ′ shown in FIG. 1A when the second operation unit 33B is operated.

  When the second operating portion 33B is pressed with a predetermined force, the operating body 30 swings in the direction R2 around an axis passing through the convex portions 36a and 36b. Then, the second pressing portion 34B pushes down the tact spring 73B, and eventually the tact spring 73B reverses and comes into contact with the central fixed contact 71B, whereby the central fixed contact 71B and the peripheral fixed contact 72B are brought into conduction, and the second switch element 70B is connected. Turn on.

  As shown in the encircled portion of the dotted line T3 in FIG. 12A, the surface 34Ra of the operating body 30 and the surface 56b of the case 50 partially face each other. For this reason, even when the first operating portion 33A is pressed, the operating body 30 does not move down in the direction R1 because the surface 34Ra abuts on the surface 56b. Accordingly, the surface 56b functions as a pressing prevention unit that prevents the operating body 30 from being pressed when the second operation unit 33B is operated. In this way, simultaneous operation of the second operation unit 33B and the first operation unit 33A and simultaneous operation of the second operation unit 33B and the third operation unit 33C are prevented.

  FIG. 12B is a cross-sectional view of the multidirectional switch 1 taken along the line B1-B1 'shown in FIG. 1A when the second operation unit 33B is operated.

  When operating the second operating portion 33B, if the operating body 30 swings in the direction R2 as described above, the raised portion 35a and the raised portion 35b are in contact with the back surface of the cover 20, and the direction 35S1 (see FIG. 12C). To slide. Therefore, the arched leaf spring 43a further curves the arch to reduce distortion.

  Similarly, during operation of the second operating portion 33B, when the operating body 30 swings in the direction R2 as described above, the raised portion 35a and the raised portion 35b are in contact with the back surface of the cover 20 in the direction 35S1 (FIG. 12 (c ))). Accordingly, the arched leaf spring 43b further curves the arch to reduce distortion. (The illustration is omitted).

  FIG. 12C is a cross-sectional view of the multidirectional switch 1 taken along the line C1-C1 ′ shown in FIG. 1A when the second operation unit 33B is operated.

  When the second operation unit 33B is operated, the operating body 30 pushes down the surface 42aC of the planar leaf spring 42a in the direction 42aD, and thus the planar leaf spring 42a is further distorted. Similarly, when the second operating portion 33B is operated, the operating body 30 pushes down the surface 42bC of the planar leaf spring 42b in the direction 42bD, so that further distortion occurs in the planar leaf spring 42b (not shown). .

  FIG. 12D is a cross-sectional view of the multidirectional switch 1 along the line D1-D1 ′ shown in FIG. 1A when the second operation unit 33B is operated.

  During the operation of the second operation portion 33B, the third operation portion 33C side of the operation body 30 is lifted, and the operation body 30 is eventually separated from the surface 41aC of the planar leaf spring 41a, so that the planar leaf spring 41a is in an unloaded state. And the distortion disappears. Similarly, when the second operating portion 33B is operated, the third operating portion 33C side of the operating body 30 is lifted and eventually the operating body 30 is separated from the surface 41bC of the flat leaf spring 41b. No load is applied and distortion is eliminated (not shown).

  When the pressing of the second operating portion 33B is stopped, the planar leaf springs 42a and 42b swing the operating body 30 around the axis passing through the convex portions 36a and 36b by the elastic force in the direction opposite to the direction R2. To do. Then, when the second pressing portion 34B is separated from the tact spring 73B and the tact spring 73B is separated from the center fixed contact 71B by canceling the inverted state by the elastic force, the conduction between the center fixed contact 71B and the peripheral fixed contact 72B is canceled. The two switch element 70B is turned off.

  On the other hand, the operating body 30 that swings in the direction opposite to the direction R2 eventually comes into contact with the planar leaf springs 41a and 42b again, and further swings and the operating body initial position substantially parallel to the dome-shaped spring-equipped substrate 60. Return to. Since the urging force of the planar leaf springs 41a and 41b and the urging force of the planar leaf springs 42a and 42b are balanced at the initial position of the operating body, the swinging stops.

  Next, with reference to FIG. 13, the operation of the multi-directional switch 1 when operating the third operation unit 33C will be described.

  FIG. 13A is a cross-sectional view of the multidirectional switch 1 taken along the line A-A ′ shown in FIG. 1A when the third operation unit 33C is operated.

  When the third operating portion 33C is pressed with a predetermined force, the operating body 30 swings around the axis passing through the convex portions 36a and 36b in the direction R3. Then, the second pressing portion 34C pushes down the tact spring 73C, and eventually the tact spring 73C reverses and comes into contact with the central fixed contact 71C, whereby the central fixed contact 71C and the peripheral fixed contact 72C are brought into conduction, and the third switch element 70C is turned on. become.

  As shown in the encircled portion of the dotted line T4 in FIG. 13A, the surface 34Ra of the operating body 30 and the surface 55b of the case 50 partially face each other. Therefore, even if the first operating portion 33A is pressed, the operating body 30 does not move down in the direction R1 because the surface 34Ra comes into contact with the surface 55b. Therefore, the surface 55b functions as a pressing prevention unit that prevents the operating body 30 from being pressed when the third operating unit 33C is operated. In this way, simultaneous operation of the third operation unit 33C and the second operation unit 33B and simultaneous operation of the third operation unit 33C and the first operation unit 33A are prevented.

  FIG. 13B is a cross-sectional view of the multidirectional switch 1 taken along the line B1-B1 'shown in FIG. 1A when the third operation unit 33C is operated.

  During operation of the third operating portion 33C, when the operating body 30 swings in the direction R3 as described above, the raised portion 35a and the raised portion 35b are in contact with the back surface of the cover 20, and the direction 35S2 (see FIG. 13C). To slide. Therefore, the arched leaf spring 43a further curves the arch to reduce distortion. Similarly, when the operating body 30 is swung in the direction R3 as described above during the operation of the third operating portion 33C, the raised portion 35a and the raised portion 35b are in contact with the back surface of the cover 20 in the direction 35S2 (FIG. 13 (c). ))). Accordingly, the arched leaf spring 43b further curves the arch to reduce distortion. (The illustration is omitted).

  FIG. 13C is a cross-sectional view of the multi-directional switch 1 taken along the line C1-C1 ′ shown in FIG. 1A when the third operation unit 33C is operated.

  During the operation of the third operating portion 33C, the second operating portion 33B side of the operating body 30 is lifted, and eventually the operating body 30 is separated from the surface 42aC of the planar leaf spring 42a, so that the planar leaf spring 42a is in an unloaded state. And the distortion disappears. Similarly, when the third operating portion 33C is operated, the second operating portion 33B side of the operating body 30 is lifted, and the operating body 30 is eventually separated from the surface 42bC of the flat leaf spring 42b, so that the planar leaf spring 42b is No load is applied and distortion is eliminated (not shown).

  FIG. 13D is a cross-sectional view of the multidirectional switch 1 taken along the line D1-D1 ′ shown in FIG. 1A when the third operation unit 33C is operated.

  When the third operating portion 33C is operated, the operating body 30 pushes down the surface 41aC of the planar leaf spring 41a in the direction 41aD, so that further distortion occurs in the planar leaf spring 41a. Similarly, when the third operating portion 33C is operated, the operating body 30 pushes down the surface 41bC of the planar leaf spring 41b in the direction 41bD, and thus the planar leaf spring 41b is further distorted (not shown). .

  When the pressing of the third operating portion 33C is stopped, the planar leaf springs 41a and 41b swing the operating body 30 around the axis passing through the convex portions 36a and 36b by the elastic force in the direction opposite to the direction R3. To do. Then, when the second pressing portion 34C is separated from the tact spring 73C and the tact spring 73C is released from the inverted state by the elastic force and is separated from the central fixed contact 71C, the conduction between the central fixed contact 71C and the peripheral fixed contact 72C is canceled. The 3-switch element 70C is turned off.

  On the other hand, the operating body 30 that swings in the direction opposite to the direction R3 eventually comes into contact with the planar leaf springs 42a and 42b again, and further swings and the operating body initial position substantially parallel to the dome-shaped spring-equipped substrate 60. Return to. Since the urging force of the planar leaf springs 42a and 42b and the urging force of the planar leaf springs 41a and 41b 42a and 42b are balanced at the initial position of the operating body, the swinging stops.

DESCRIPTION OF SYMBOLS 1 Multidirectional switch 20 Cover 30 Operation body 40 Actuating spring 50 Case 60 Dome-shaped spring board 70A 1st switch element 70B 2nd switch element 70C 3rd switch element

Claims (4)

A pair of elastic members having recesses;
The pair of elastic members includes a pair of convex portions that engage with the concave portions, a first pressing portion, and a second pressing portion, and is swingably supported about the pair of convex portions as axes. An operation member;
A pressing switch member that is turned on and off by the first pressing portion when the operating member is pressed in the displacement direction of the pair of elastic members;
A swing switch member that is turned on and off by the second pressing portion when the operation member is swung about an engagement member with the recess;
A holding member that holds a part of the first pressing portion when the operating member is pressed and prevents the operating member from swinging;
A contact member that contacts a part of the first pressing portion to prevent the operation member from being pressed when the operation member swings;
A multi-directional switch comprising: Further comprising a second elastic member that urges the operating member against the swinging of the operating member, multidirectional switch according to claim 1. The multidirectional switch according to claim 2 , wherein the pair of elastic members and the second elastic member are integrally formed. A through hole for the second pressing portion, including the holding member and the abutting member, holding the pair of elastic members, the operation member, the push switch member, and the swing switch member; The multidirectional switch according to any one of claims 1 to 3 , further comprising a substrate disposed between the two.

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