JP6410358B2 - Rotating switch device - Google Patents

Description

  The present invention relates to a rotary switch device, and more particularly, to a rotary switch device having no play and stable operation feeling.

  A vehicle power seat that adjusts the attitude of an in-vehicle seat electrically is known, and various switch devices for driving a movable portion of the vehicle power seat in a desired direction have been proposed.

  For example, in Patent Document 1, in a power seat switch device for a vehicle, an operation knob rotated around a rotation fulcrum, a drive body driven by the operation knob, and a swing lever pressed by the drive body There is disclosed a switch mechanism comprising:

  FIG. 18 is an exploded perspective view of the switch device 100. FIG. 19 is an inner view of the second operation knob 115 provided in the switch device 100. The fourth driving body 112 includes a pressing portion 112a formed in a plate shape having pressing protrusions at both ends, and an engaging portion 112b protruding upward from the central portion of the pressing portion 112a. A pin insertion hole 112c for attaching the fourth driving body 112 to the upper case 113 so as to be swingable is formed on the side surface of the central portion of the pressing portion 112a. Moreover, the upper end part of the engaging part 112b is formed in the spherical shape.

  The second operation knob 115 is formed in a cap shape, and as shown in FIG. 19, the second operation knob 115 is provided on the inner surface of the second operation knob 115 with respect to a knob holding shaft 113 d protruding from the upper surface of the upper case 113. A substantially ring-shaped connecting projection 115a is formed for rotation. Furthermore, on the inner surface of the second operation knob 115, a fourth engagement holding portion 115b for holding the tip of the engagement portion 112b formed on the fourth driving body 112 is formed. The fourth engagement holding portion 115b is configured by two engagement holding plates arranged in parallel, and the front end of the fourth engagement holding portion 115b is for locking the engagement portion 112b formed on the fourth driving body 112. A locking claw 115c is formed.

  When the second operation knob 115 is operated in one direction around the knob holding shaft 113d provided on the upper surface of the upper case 113, the fourth driver 112 is swung in one direction and is provided in the fourth lever switch 108. The swing lever 108b is selectively pressed, and the first contact provided in the fourth lever switch 108 is switched from the non-operating state to the operating state.

  On the other hand, when the second operation knob 115 is operated in the other direction around the knob holding shaft 113d protruding from the upper surface of the upper case 113, the fourth driver 112 is swung in the other direction, and the fourth lever The swing lever 108c provided in the switch 108 is selectively pressed, and the second contact provided in the fourth lever switch 108 is switched from the non-operating state to the operating state.

JP 2004-288393 A

  However, in the conventional configuration, the second operation knob 115 is provided with the fourth engagement holding portion 115b for holding the engagement portion 112b of the fourth driving body 112, and the fourth engagement holding portion 115b provides the fourth engagement holding portion 115b. The four driving bodies 112 were slidably held. That is, since the second operation knob 115 rotates in a plan view and the fourth driving body 112 performs a linear operation, the fourth engagement holding portion 115b performs the fourth drive in accordance with the rotation operation of the second operation knob 115. It was held with a degree of freedom in the distance direction so that the distance to the body 112 could be changed. Therefore, a slidable dimension, that is, a width larger than the width of the fourth driving body 112 is a necessary condition. If this dimension is too large, the driving body (second operation knob 115) is in a standby state. A large backlash occurs between the four drive bodies 112) and the operator feels that the operator feels the grip when the operation knob is held particularly during the operation. Further, if there is a backlash, there is a problem that sound is generated by vibration of the vehicle.

  The present invention solves the above-described problems, and an object of the present invention is to provide a rotary switch device that has no backlash and has a stable operation feeling.

  The present invention relates to a switch member having a contact portion that is electrically contacted and separated and a pressed portion that returns to an initial position with an elastic force, a support body in which the switch member is accommodated, and a tiltable movement to the support body And a driving body that presses the pressed portion of the switch member via the pressing portion to connect the contact portion, and is provided on the support body so as to be rotatable in a plan view. The operation knob is returned by the elastic force of the pressed portion of the switch member when the operation of rotating the operation knob is released by bringing the contact portion of the switch member into and out of contact with each other. The rotary switch device includes a holding member that is integrally formed with or separately from the operation knob and holds the drive body, and the support body is configured to rotate the operation knob. Movement A connecting hole having a point, the holding member having a substantially cylindrical side surface, and a substantially cone having a vertex on an extension of a virtual center line of the substantially cylindrical side surface and continuing from the substantially cylindrical side surface of the connecting hole And a camshaft having a concave surface, the drive body having a connecting shaft inserted into the connecting hole with a predetermined gap, and one end side of the connecting shaft in a direction of elastic contact with the cam surface An actuator that is energized and has a substantially hemispherical tip is disposed, and in a non-operating state of the operation knob, the pressing portion of the driving body is in contact with the pressed portion of the switch member. In addition, the connecting shaft is held by an elastic contact force of the actuator with respect to the cam surface.

  According to this configuration, the holding member that tilts the drive body is provided with the cam surface, and the drive body is provided with the actuator that is elastically contacted with the cam surface, so the connection hole between the holding member and the connection shaft of the drive body is provided. Even if there is a predetermined gap, the driving body is held free of play by the elastic holding force of the cam surface and the actuator. Further, since the driving body is disposed so as to abut against the switch member, the drive body is held in a state where there is no backlash with the switch member. In addition, since the holding member and the operation knob are also integrally molded or fitted, no play occurs in this portion. As a result, there is no backlash in the apparatus without increasing the component accuracy.

  Further, in the rotary switch device according to the present invention, the drive body includes a tilting shaft that is pivotally supported by the support body, and a pair of pressing portions that are formed at an equal distance across the tilting shaft. A pair of the switch members are disposed corresponding to the pair of pressing portions, and the rotation fulcrum of the operation knob is disposed on an extension line of the tilt shaft in a plan view. Features.

  According to this configuration, the pair of switch members are disposed at symmetrical positions when viewed from the tilting shaft of the drive body and the rotation fulcrum of the operation knob. Therefore, the tilting operation of the drive body is the rotation operation of the operation knob. Operates on the tangent line equally. For this reason, there is no difference in operation feeling depending on the operation direction of the operation knob.

  Moreover, the rotation type switch apparatus of this invention WHEREIN: It is preferable that the surface which opposes the said rotation fulcrum of the said operation knob is comprised by the substantially parallel surface at the one end side of the said connection shaft.

  According to this configuration, the one end side of the connecting shaft has a substantially parallel shape with directionality in a plan view, so that no extra play is generated in the circumferential direction, which originally does not require a gap, and the operator can rotate efficiently. It can transmit movement and has a good operation feel.

  Further, in the rotary switch device according to the present invention, the support includes an opening having a size capable of moving the holding member in accordance with an operation of rotating the operation knob, and the holding member includes the opening. It is preferable to have a flange portion that is arranged so as to be inserted through the portion and that overlaps the opening portion in a plan view and slides on the support.

  According to this configuration, since the holding member has the flange portion that overlaps the opening portion, it is possible to suppress dust and the like from entering the opening portion. In addition, it becomes a guide for the turning operation of the operation knob, and the operation of the operation knob is stabilized.

  Further, in the rotary switch device of the present invention, the holding member is further formed with a concave shape on the apex side of the substantially conical concave surface of the cam surface, and the concave shape is the rotation of the operation knob in plan view. It is a long hole whose longitudinal direction is the direction toward the fulcrum, and a part of the substantially hemispherical tip of the actuator is inserted into the long hole, and the edge of the long hole in the short direction of the long hole. It is preferable that the tip is supported by contacting.

  According to this configuration, the longitudinal direction of the elongated hole is the direction in which the radius of rotation changes, and the tip of the actuator is supported by the edge of the elongated hole, so that the movement is smoother and stable without load fluctuations. A feel is obtained.

  According to the present invention, the pressing portion of the driving body is in contact with the pressed portion of the switch member, the cam member is provided on the holding member for tilting the driving body, and the driving body is in elastic contact with the cam surface. Since the actuator is provided, it is possible to provide a rotary switch device that has no play and a stable operation feeling.

It is a fragmentary perspective view which shows the rotary switch apparatus of 1st Embodiment of this invention. It is a partial exploded perspective view showing the rotation type switch device of a 1st embodiment of the present invention. It is a partial top view which shows the rotation type switch apparatus of 1st Embodiment of this invention. It is the fragmentary sectional view cut | disconnected by the IV-IV line of FIG. It is the fragmentary sectional view cut | disconnected by the VV line | wire of FIG. It is explanatory drawing which shows the drive body by which the actuator was arrange | positioned. It is explanatory drawing which shows operation to the 1st operation direction of an operation knob. FIG. 6 is a partial cross-sectional view corresponding to FIG. 5, and is an explanatory diagram illustrating a tilting operation of the driving body by an operation in a first operation direction. It is explanatory drawing which shows operation to the 2nd operation direction of an operation knob. FIG. 6 is a partial cross-sectional view corresponding to FIG. 5, and is an explanatory diagram illustrating a tilting operation of the driving body by an operation in a second operation direction. It is a partial exploded perspective view which shows the rotation type switch apparatus of 2nd Embodiment of this invention. FIG. 12A is an external view of the holding member, FIG. 12A is a front view seen from the Y1 side, and FIG. 12B is a bottom view seen from the Z2 side. It is sectional drawing cut | disconnected by the XIII-XIII line | wire of Fig.12 (a). It is sectional drawing cut | disconnected by the XIV-XIV line | wire of FIG.12 (b). It is a partial top view which shows the rotary switch apparatus 2 of this embodiment. It is sectional drawing cut | disconnected by the XVI-XVI line | wire of FIG. It is sectional drawing cut | disconnected by the XVII-XVII line | wire of FIG. It is a disassembled perspective view of the conventional switch apparatus. It is an inner surface figure of the 2nd operation knob with which the conventional switch apparatus is equipped.

[First Embodiment]
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. For easy understanding, the dimensions of the drawings are appropriately changed.

  FIG. 1 is a partial perspective view showing a rotary switch device 1 according to a first embodiment of the present invention. FIG. 2 is a partially exploded perspective view showing the rotary switch device 1 of the present embodiment. FIG. 3 is a partial plan view showing the rotary switch device 1 of the present embodiment. 4 is a partial cross-sectional view taken along line IV-IV in FIG. 5 is a partial cross-sectional view taken along line VV in FIG. FIG. 6 is an explanatory diagram showing the driving body 20 in which the actuator 31 is disposed.

  The rotary switch device 1 of the present embodiment is optimized as a rotary switch used in a vehicle power seat switch device. 1 to 3 show only a portion necessary for explaining the rotary switch device 1 of the present embodiment, and the rotary switch device when the operation surface of the vehicle power seat switch device is viewed in plan view. Other components arranged around 1 are omitted. In the following description, the operation surface of the vehicle power seat switch device is described as the XY plane, the Z1 side in FIG. 1 is described as the upper side, the Z2 side is the lower side, and the Z1 side is viewed from the Z1 side. This is called planar view. This is for ease of explanation, and does not limit the mounting direction of the rotary switch device 1 and the vehicle power seat switch device.

  As shown in FIG. 2, the rotary switch device 1 is pivotally supported by the support body 50 including the substrate 15, a pair of switch members 10 housed in the support body 50, and the support body 50 so as to be tiltable. And a holding member 40 that tilts the driving body 20. The holding member 40 is fitted and held by an operation knob 45 for an operator to operate.

  The support body 50 is formed by molding a synthetic resin, and includes a lower case 51 on which the substrate 15 is placed, an upper case 52 in which an opening 52 a for inserting the holding member 40 is formed, and the driving body 20. And a drive mechanism portion 53 in which a support portion 53a for supporting the shaft is formed. As shown in FIGS. 2 to 5, a shaft portion 52 b formed in a columnar shape is protruded from the upper case 52. In addition, sliding portions 53 b and 53 c are formed in the drive mechanism portion 53 at positions corresponding to the pair of switch members 10.

  The operation knob 45 is formed of a synthetic resin, and is provided on the support body 50 so as to be rotatable in a plan view with the central axis of the shaft portion 52b serving as a rotation fulcrum 45a.

  The pair of switch members 10 includes a contact portion 11 that is electrically connected and separated and a pressed portion 12 that returns to an initial position with an elastic force. Electrical wiring is formed on the substrate 15 and constitutes a part of the contact portion 11 of the switch member 10. The pressed portion 12 of each switch member 10 is formed at the corresponding portion of the rubber member 16 disposed so as to cover the substrate 15. The contact portion 11 includes a movable contact (not shown) provided on the pressed portion 12 and a plurality of fixed contacts formed so as to be connected to the electric wiring of the substrate 15. In addition, the switch member 10 is not limited to this aspect, For example, the switch member 10 may have a ready-made switch unit disposed on the substrate 15.

  The driving body 20 is formed by molding a synthetic resin. The driving body 20 is orthogonal to the tilting shaft 21, the arm portions 23 and 24 extending in a direction orthogonal to the axial direction of the tilting shaft 21, and the axial direction of the tilting shaft 21 and the extending direction of the arm portions 23 and 24. The connecting shaft 22 is formed in a protruding manner, and the sliding members 25 and 26 are arranged at both ends of the arm portions 23 and 24. The drive body 20 is disposed such that the tilt shaft 21 is pivotally supported by the support portion 53a of the drive mechanism portion 53, and the sliding members 25 and 26 can slide on the slide portions 53b and 53c of the drive mechanism portion 53. Are arranged as follows. In the sliding members 25 and 26, a pair of pressing portions 27 and 28 that are in contact with the pressed portion 12 of the pair of switch members 10 are formed at equal distances across the tilting shaft 21. In the present embodiment, the sliding members 25 and 26 are configured separately from the arm portions 23 and 24, and are considered so that they can slide more smoothly along the sliding portions 53b and 53c. .

  In the present embodiment, a pivot fulcrum 45a that allows the operation knob 45 to pivot is disposed on an extension line of the tilt shaft 21 of the drive body 20 in plan view (see FIGS. 3 and 4). The drive body 20 includes arm portions 23 and 24 that extend in a direction orthogonal to the axial direction of the tilt shaft 21, and a pair of pressing portions 27 and 28 that are formed at an equal distance across the tilt shaft 21. Moreover, as shown in FIG. 6, the one end side of the connection shaft 22 of the drive body 20 has a substantially spherical shape as a whole. Then, it is cut into a planar shape along the turning direction of the operation knob 45. That is, it has a shape called a double D-cut. In other words, the opposed surfaces 22a and 22b facing the rotation fulcrum 45a of the operation knob 45 are substantially parallel surfaces.

  As shown in FIG. 6, an actuator 31 is disposed on one end side of the connecting shaft 22. The actuator 31 is formed of a synthetic resin in a rod shape, and one end side has a hemispherical tip portion 31a. As shown in FIG. 2, a metal coil spring 32 is attached to the other end side. The coil spring 32 is disposed in a slightly compressed state, and the actuator 31 is biased in the direction in which the coil spring 32 extends.

  The holding member 40 is formed by molding a synthetic resin. The holding member 40 includes a flat flange portion 42, an operation portion 41 protruding upward from the upper surface 42 a of the flange portion 42, a connection hole 43 formed in the lower surface 42 b of the flange portion 42, and a bottom of the connection hole 43. And a cam surface 44 having a substantially conical concave surface formed. As shown in FIGS. 4 and 5, the connecting hole 43 has a substantially cylindrical side surface 43a. The cam surface 44 is a substantially conical concave surface continuous from the substantially cylindrical side surface 43a of the connecting hole 43, and has a vertex on the extension of the virtual center line 43b of the substantially cylindrical side surface 43a. The drive body 20 is inserted with a predetermined gap into a connection hole 43 having one end side of the connection shaft 22 having a substantially cylindrical side surface 43a. The actuator 31 described above is in elastic contact with the cam surface 44, whereby the connecting shaft 22 is held by the elastic contact force of the actuator 31 with respect to the cam surface 44.

  The holding member 40 is disposed so that the operation portion 41 protrudes upward through the opening 52 a of the upper case 52. The holding member 40 is brought into contact with the lower surface of the upper case 52 so that the operation portion 41 is fitted and held with the operation knob 45 and the flange portion 42 overlaps the opening portion 52a and closes the opening portion 52a. The holding member 40 moves in a plane so that the flange portion 42 slides on the lower surface of the upper case 52 as the operation knob 45 is rotated. In other words, the flange portion 42 serves as a guide for the rotation operation of the operation knob 45.

  The opening 52a has a size that allows the holding member 40 to move in accordance with an operation of rotating the operation knob 45. The movement direction of the holding member 40 is the rotation direction of the operation knob 45, and although the movement distance is not large, it is an arc trajectory centered on the rotation fulcrum 45a.

  The rotary switch device 1 according to the present embodiment is in a state in which the pressing portions 27 and 28 of the driving body 20 are in contact with the pressed portion 12 of the switch member 10 when the operation knob 45 is not operated, and the connecting shaft 22 is held by the elastic contact force of the actuator 31 against the cam surface 44. Since the cam surface 44 is a substantially conical concave surface and has a vertex on the extension of the virtual center line 43b, even if there is a predetermined gap between the connection hole 43 and one end side of the connection shaft 22, the cam surface The displacement from the virtual center line 43b is minimized by the elastic holding force of the actuator 44 and the actuator 31. As a result, the driving body 20 is held in a state where there is no backlash. The operation knob 45 is electrically connected to the contact portion 11 of the switch member 10 by rotating the operation knob 45, and the operation knob 45 is moved by the elastic force of the pressed portion 12 of the switch member 10 when the operation of rotating the operation knob 45 is released. Will be restored.

  The tilting operation of the driving body 20 when the operation knob 45 is turned will be described in detail.

  FIG. 7 is an explanatory diagram showing an operation of the operation knob 45 in the first operation direction. FIG. 8 is a partial cross-sectional view corresponding to FIG. 5, and is an explanatory view showing the tilting operation of the driving body 20 by the operation in the first operation direction. FIG. 9 is an explanatory diagram showing the operation of the operation knob 45 in the second operation direction. FIG. 10 is a partial cross-sectional view corresponding to FIG. 5, and is an explanatory view showing the tilting operation of the drive body 20 by the operation in the second operation direction.

  When the operation knob 45 is operated in the first operation direction (the direction of arrow A in FIG. 7), the holding member 40 moves as shown in FIG. At this time, as shown in FIG. 8, the drive body 20 tilts so as to displace the pressed portion 12 of the switch member 10 on the Y1 side via the pressing portion 27. Thereby, the contact part 11 of the switch member 10 on the Y1 side is electrically connected.

  When the operation of rotating the operation knob 45 is released, the pressed portion 12 of the switch member 10 on the Y1 side is restored by elastic force, the pressing portion 27 is displaced upward, and the operation knob 45 is returned to the initial position. The Since the connecting shaft 22 is held by the elastic contact force of the actuator 31 with respect to the cam surface 44, the operator does not feel loose at the time of operation and release.

  When the operation knob 45 is operated in the second operation direction (the direction of arrow B in FIG. 7), the holding member 40 moves as shown in FIG. At this time, as shown in FIG. 10, the drive body 20 tilts so as to displace the pressed portion 12 of the switch member 10 on the Y2 side downward via the pressing portion 28. Thereby, the contact part 11 of the switch member 10 on the Y2 side is electrically connected.

  When the operation of rotating the operation knob 45 is released, the pressed portion 12 of the switch member 10 on the Y2 side is restored by the elastic force, the pressing portion 28 is displaced upward, and the operation knob 45 is returned to the initial position. The Since the connecting shaft 22 is held by the elastic contact force of the actuator 31 with respect to the cam surface 44, the operator does not feel loose at the time of operation and release.

  Further, since the pair of switch members 10 are disposed at symmetrical positions when viewed from the tilting shaft 21 of the driving body 20 and the rotation fulcrum 45a of the operation knob 45, the tilting operation of the driving body 20 is performed by the operation knob 45. Operates evenly on the tangent line of rotation. For this reason, there is no difference in operation feeling depending on the operation direction of the operation knob 45.

  Since one end side of the connecting shaft 22 of the driving body 20 and the tip 31a of the actuator 31 are substantially spherical, it can operate smoothly in the tilt angle range up to the tilt state of FIG. 8 or FIG. . Further, in this tilt angle range, the actuator 31 biased by the coil spring 32 is kept in a state of elastic contact with the cam surface 44. Since the cam surface 44 is a substantially conical concave surface and has a vertex on the extension of the virtual center line 43b, even if there is a predetermined gap between the connection hole 43 and one end side of the connection shaft 22, the cam surface Due to the elastic holding force of the actuator 44 and the actuator 31, the driving body 20 is held in a state free from backlash.

  Further, since one end side of the connecting shaft 22 of the driving body 20 is configured by opposing surfaces 22a and 22b facing the rotation fulcrum 45a as substantially parallel surfaces, as shown in FIG. 4, one end side of the connecting shaft 22 is provided. And the substantially cylindrical side surface 43a of the connecting hole 43 have a direction (X1-X2 direction) in which the gap is slightly widened. Accordingly, the connecting shaft 22 and the substantially cylindrical side surface are caused by the displacement in the X1 direction or the variation in the component dimensions in the X1-X2 direction that occurs when the holding member 40 moves in the direction of the arc around the rotation fulcrum 45a. It is prevented that 43a abuts strongly and the movement of the connecting shaft 22 deteriorates.

  Unlike this embodiment, in order to absorb this displacement, if the gap between the spherical diameter on one end side of the connecting shaft 22 and the inner diameter of the substantially cylindrical side surface 43a of the connecting hole 43 is widened, the backlash due to the gap will not occur. It occurs all around. On the other hand, if the one end side of the connecting shaft 22 is a substantially spherical surface in which the opposing surfaces 22a and 22b facing the rotation fulcrum 45a are substantially parallel surfaces as in the present embodiment, an additional gap is essentially unnecessary. In this way, no excessive backlash occurs in the circumferential direction (Y1-Y2 direction), the rotation operation of the operator can be transmitted efficiently, and the operation feeling is good.

  Hereinafter, the effect by having set it as this embodiment is demonstrated.

  The rotary switch device 1 of the present embodiment includes a switch member 10, a support body 50 in which the switch member 10 is accommodated, a pivotally supported pivotal support on the support body 50, and the pressed portion 12 of the switch member 10. And a driving body 20 that presses and electrically connects the contact portion 11. The pressed part 12 returns to the initial position with elasticity. The contact member 11 of the switch member 10 is brought into contact with and separated from the support member 50 by turning an operation knob 45 provided to be rotatable in a plan view, and the switch member is released when the operation turning the operation knob 45 is released. The operation knob 45 is returned by the elastic force of the ten pressed parts 12. The holding member 40 is fitted and held with the operation knob 45 and tilts the drive body 20, and the support body 50 includes a rotation fulcrum 45 a that allows the operation knob 45 to rotate. The holding member 40 has a connection hole 43 having a substantially cylindrical side surface 43a, a substantially conical shape that is continuous from the substantially cylindrical side surface 43a of the connection hole 43 and has a vertex on the extension of the virtual center line 43b of the substantially cylindrical side surface 43a. A cam surface 44 having a concave surface. Further, the driving body 20 has a connecting shaft 22 inserted into the connecting hole 43 with a predetermined gap, and is biased in a direction in which it is elastically contacted with the cam surface 44 at one end side of the connecting shaft 22 and substantially hemispherical. An actuator 31 having a distal end portion 31a is disposed. When the operation knob 45 is not operated, the pressing portions 27 and 28 of the driving body 20 are in contact with the pressed portion 12 of the switch member 10, and the connecting shaft 22 is elastically contacting the cam surface 44 of the actuator 31. Is held by.

  According to this configuration, even if there is a predetermined gap between the connection hole 43 of the holding member 40 and the connection shaft 22 of the drive body 20, the drive body 20 is free of play due to the elastic holding force of the cam surface 44 and the actuator 31. Kept in a state. Further, since the driving body 20 is disposed so as to contact the switch member 10, the drive body 20 is held in a state where there is no backlash with the switch member 10. Further, since the holding member 40 and the operation knob 45 are also fitted, backlash does not occur in this portion. As a result, it is possible to eliminate all the play in the rotary switch device 1 without increasing the component accuracy.

  In the rotary switch device 1 of the present embodiment, the drive body 20 includes a tilting shaft 21 that is pivotally supported by the support body 50 and a pair of pressing portions 27 that are formed at an equal distance across the tilting shaft 21. 28. Further, a pair of switch members 10 are disposed corresponding to the pair of pressing portions 27 and 28, and the rotation fulcrum 45a of the operation knob 45 is disposed on an extension line of the tilt shaft 21 in a plan view. Yes.

  According to this configuration, the pair of switch members 10 are disposed at symmetrical positions when viewed from the tilt shaft 21 of the drive body 20 and the rotation fulcrum 45a of the operation knob 45. It moves equally on the left and right on the tangent line of the rotation of the operation knob 45. For this reason, there is no difference in operation feeling depending on the operation direction of the operation knob 45.

  Moreover, in the rotation type switch apparatus 1 of this embodiment, it is preferable that the opposing surfaces 22a and 22b which oppose the rotation fulcrum 45a of the operation knob 45 are comprised by the substantially parallel surface at the one end side of the connection shaft 22. FIG. .

  According to this configuration, the one end side of the connecting shaft 22 has a substantially parallel shape with directionality in a plan view, so that excess play does not occur in the circumferential direction, which originally does not require a gap, and the operator can efficiently rotate. Can transmit dynamic motion and has a good operation feel.

  Further, in the rotation type switch device 1 of the present embodiment, the support body 50 includes an opening 52a having a size that allows the holding member 40 to move in accordance with an operation of rotating the operation knob 45. The holding member 40 is preferably disposed so as to be inserted through the opening 52 a and has a flange 42 that overlaps the opening 52 a and slides on the support 50 in a plan view.

  According to this structure, since the holding member 40 has the flange part 42 which overlaps with the opening part 52a, it can suppress that a dust etc. enter from the opening part 52a. Further, the operation knob 45 becomes a guide for the rotation operation of the operation knob 45, and the operation of the operation knob 45 is stabilized.

  As mentioned above, although the rotary switch apparatus 1 of 1st Embodiment of this invention was demonstrated concretely, this invention is not limited to said embodiment, In the range which does not deviate from a summary, it changes variously. Can be implemented. For example, the present invention can be modified as follows, and these also belong to the technical scope of the present invention.

  (1) In the present embodiment, the pair of switch members 10 are arranged at symmetrical positions when viewed from the tilting shaft 21 and the rotation fulcrum 45a, but the switch members 10 are arranged only in one of them. A rotary switch device may be used.

  (2) In the present embodiment, the holding member 40 is separate from the operation knob 45 and is fitted and held with the operation knob 45, but the holding member 40 may be integrally formed with the operation knob 45. In this case, it is preferable that the operation portion 41 is disposed so as to pass through the opening 52a and the flange portion 42 is attached so as to overlap the opening 52a. For example, the upper case 52 may be attached in combination as a member divided into two. Further, the configuration is not limited to the configuration in which the shaft portion 52 b protruding from the upper case 52 is provided, and the shaft portion may be provided in the operation knob 45 and fitted into the hole provided in the upper case 52 to be pivotally supported.

  (3) In the present embodiment, the support 50 is divided into the lower case 51, the upper case 52, and the drive mechanism portion 53, but the drive mechanism portion 53 is configured to be integrated with the lower case 51. May be. Alternatively, the drive mechanism 53 may be divided into a member integrated with the lower case 51 and a member integrated with the upper case 52.

  (4) In the present embodiment, the cam surface 44 of the holding member 40 is a substantially conical concave surface, but may be an ellipsoidal concave surface to be rotated around the virtual center line 43b.

  (5) In the present embodiment, the one end side of the connecting shaft 22 of the drive body 20 has a substantially spherical shape as a whole, and the opposed surfaces 22a and 22b facing the rotation fulcrum 45a of the operation knob 45 are substantially parallel surfaces. Although it is configured, it may have an elliptical shape in a plan view from one end side of the connecting shaft 22.

  (6) In the present embodiment, the operation knob 45 has a rectangular shape in plan view extending from the rotation fulcrum 45a toward the operation unit 41, but the outer shape of the operation knob 45 can be designed arbitrarily. Further, the operation knob 45 is not limited to a substantially rectangular outer shape, and may be, for example, a substantially disk-shaped outer shape with the rotation fulcrum 45a as the center.

[Second Embodiment]
Hereinafter, a rotary switch device 2 according to a second embodiment of the present invention will be described with reference to the drawings. The rotary switch device 2 of the second embodiment has substantially the same external shape as the rotary switch device 1 of the first embodiment, and the holding member 40 is replaced with a holding member 60 described later. The material of the member used for the rotary switch device 2 of the second embodiment is the same as each member of the rotary switch device 1 of the first embodiment. Moreover, about the members other than the holding member 60, the code | symbol used in 1st Embodiment is attached | subjected, and the detailed description is abbreviate | omitted.

  FIG. 11 is a partially exploded perspective view showing the rotary switch device 2 of the second embodiment. FIG. 12 is an external view of the holding member 60, FIG. 12 (a) is a front view seen from the Y1 side, and FIG. 12 (b) is a bottom view seen from the Z2 side. FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. FIG. 14 is a cross-sectional view taken along line XIV-XIV in FIG. FIG. 15 is a partial plan view showing the rotary switch device 2 of the present embodiment. 16 is a cross-sectional view taken along line XVI-XVI in FIG. 17 is a cross-sectional view taken along line XVII-XVII in FIG.

  As shown in FIG. 11, the rotary switch device 2 is pivotally supported by the support body 50 including the substrate 15, a pair of switch members 10 housed in the support body 50, and the support body 50 so as to be tiltable. And a holding member 60 that tilts the driving body 20. The holding member 60 is fitted and held by an operation knob 45 for an operator to operate.

  The driving body 20 is orthogonal to the tilting shaft 21, the arm portions 23 and 24 extending in a direction orthogonal to the axial direction of the tilting shaft 21, and the axial direction of the tilting shaft 21 and the extending direction of the arm portions 23 and 24. The connecting shaft 22 is formed in a protruding manner, and the sliding members 25 and 26 are arranged at both ends of the arm portions 23 and 24. A pair of pressing portions 27 and 28 are formed on the sliding members 25 and 26 at equal distances with the tilting shaft 21 in between.

  Further, a pair of switch members 10 are disposed corresponding to the pair of pressing portions 27 and 28, and the rotation fulcrum 45a of the operation knob 45 is disposed on an extension line of the tilt shaft 21 in a plan view. Yes.

  Further, on one end side of the connecting shaft 22, opposed surfaces 22 a and 22 b that face the rotation fulcrum 45 a of the operation knob 45 are configured as substantially parallel surfaces.

  Also in this embodiment, the pressed part 12 returns to the initial position with an elastic force. The contact member 11 of the switch member 10 is brought into contact with and separated from the support member 50 by turning an operation knob 45 provided to be rotatable in a plan view, and the switch member is released when the operation turning the operation knob 45 is released. The operation knob 45 is returned by the elastic force of the ten pressed parts 12.

  The operation knob 45 is formed of a synthetic resin, and is provided on the support body 50 so as to be rotatable in a plan view with the central axis of the shaft portion 52b serving as a rotation fulcrum 45a.

  The holding member 60 is formed by molding a synthetic resin. The holding member 60 includes a flat flange portion 62, an operation portion 61 protruding upward from the upper surface 62a of the flange portion 62, a connection hole 63 formed in the lower surface 62b of the flange portion 62, and a bottom of the connection hole 63. And a cam surface 64 having a substantially conical concave surface formed. In the present embodiment, as shown in FIGS. 12 to 14, the connecting hole 63 has a substantially cylindrical side surface 63a that is longer in the X1-X2 direction than in the Y1-Y2 direction. That is, as shown in FIG. 12B, the hole is a rounded rectangle (a shape in which a semicircle is connected to two opposite sides of the rectangle) in plan view from the bottom surface side. The cam surface 64 is a substantially conical concave surface continuous from the substantially cylindrical side surface 63a of the connecting hole 63, and has a vertex on the extension of the virtual center line 63b of the substantially cylindrical side surface 63a. In the present embodiment, the cam surface 64 has a shape in which a cone is divided into two vertically and connected by a rectangular tapered surface. Furthermore, the cam surface 64 is further formed with a concave shape on the apex side of the substantially conical concave surface. As shown in FIG. 12B, the concave shape is a long hole whose longitudinal direction is the X1-X2 direction in plan view. 65. An edge 65a of the elongated hole 65 facing the cam surface 64 is a rounded rectangle in plan view from the bottom surface side.

  The holding member 60 is disposed so that the operation portion 61 protrudes upward through the opening 52 a of the upper case 52. The holding member 60 abuts on the lower surface of the upper case 52 such that the operation portion 61 is fitted and held with the operation knob 45 and the flange portion 62 overlaps the opening portion 52a and closes the opening portion 52a. The holding member 60 moves in a plane so that the flange portion 62 slides on the lower surface of the upper case 52 as the operation knob 45 is rotated. In other words, the flange portion 62 serves as a guide for the turning operation of the operation knob 45.

  The opening 52a has such a size that the holding member 60 can be moved in accordance with an operation of rotating the operation knob 45. The movement direction of the holding member 60 is the rotation direction of the operation knob 45, and although the movement distance is not large, it is an arc trajectory centered on the rotation fulcrum 45a.

  In the rotary switch device 2 of the present embodiment, when the operation knob 45 is not operated (FIG. 15), the pressing portions 27 and 28 of the driving body 20 are the pressed portions 12 of the switch member 10 as shown in FIG. It is in the state which contacted. The connecting shaft 22 is held by the elastic contact force of the actuator 31 urged by the coil spring 32 to the cam surface 64.

  The cam surface 64 of the holding member 60 is formed with a concave long hole 65 whose longitudinal direction is the direction toward the rotation fulcrum 45a of the operation knob 45 in plan view. When the operation knob 45 is not operated, a part of the substantially hemispherical tip 31a of the actuator 31 is inserted into the elongated hole 65, and the distal end of the elongated hole 65 reaches the edge 65a in the short direction as shown in FIG. The part 31a is supported by contacting. At this time, in the longitudinal direction of the long hole 65, as shown in FIG. 16, the substantially hemispherical tip portion 31a of the actuator 31 is in a non-contact state. The contact between the edge 65a of the long hole 65 and the distal end portion 31a of the actuator 31 is a two-point point contact at the edge 65a in the short direction of the long hole 65, so that a smoother movement can be obtained.

  When the operation knob 45 is operated, the rotation operation of the holding member 60 is converted into the tilting operation of the drive body 20 as in the first embodiment. Also in this embodiment, since the cam surface 64 is a substantially conical concave surface and has a vertex on the extension of the virtual center line 63b, the elastic holding force of the cam surface 64 and the actuator 31 causes the cam surface 64 from the virtual center line 63b. Deviation is minimized. As a result, the driving body 20 is held in a state where there is no backlash. Furthermore, since the longitudinal direction of the long hole 65 is the direction in which the radius of rotation changes, and the tip portion 31a of the actuator 31 is supported by the edge 65a of the long hole 65, a smoother movement can be obtained.

  Further, in the turning operation of the operation knob 45, when the tip portion 31a can be moved to the substantially conical concave surface of the cam surface 64 along the longitudinal direction of the long hole 65, the operation feeling accompanying the movement of the tip portion 31a. It is possible to obtain For example, the coil spring 32 extends in a direction in which the tip 31 a transitions from a state where the tip 31 a is in contact with the substantially conical concave surface of the cam surface 64 to a state where a part of the tip 31 a is inserted into the elongated hole 65. The actuator 31 is urged to contact the edge 65a of the slot 65. Thereby, the operation feeling by the actuator 31 urged by the coil spring 32 is obtained at the same time when the initial position is restored by the elastic force of the pressed portion 12 of the switch member 10. By adopting the configuration of the present embodiment, this operation feeling eliminates an extra catch for each operation, does not change the load, and always provides a stable feeling even when repeated operations are performed.

  Hereinafter, the effect by having set it as this embodiment is demonstrated.

  The rotary switch device 2 of the present embodiment includes a switch member 10, a support 50 in which the switch member 10 is accommodated, and a pivotally supported pivotally supported by the support 50. And a driving body 20 that presses and electrically connects the contact portion 11. The pressed part 12 returns to the initial position with elasticity. The contact member 11 of the switch member 10 is brought into contact with and separated from the support member 50 by turning an operation knob 45 provided to be rotatable in a plan view, and the switch member is released when the operation turning the operation knob 45 is released. The operation knob 45 is returned by the elastic force of the ten pressed parts 12. The holding member 60 is fitted and held with the operation knob 45 and tilts the drive body 20, and the support body 50 includes a rotation fulcrum 45 a that allows the operation knob 45 to rotate. The holding member 60 has a connection hole 63 having a substantially cylindrical side surface 63a, a substantially conical shape that is continuous from the substantially cylindrical side surface 63a of the connection hole 63 and has a vertex on the extension of the virtual center line 63b of the substantially cylindrical side surface 63a. A cam surface 64 having a concave surface. Further, the driving body 20 has a connecting shaft 22 inserted into the connecting hole 63 with a predetermined gap. The driving shaft 20 is urged toward one end side of the connecting shaft 22 in a direction of elastic contact with the cam surface 64 and substantially hemispherical. An actuator 31 having a distal end portion 31a is disposed. When the operation knob 45 is not operated, the pressing portions 27 and 28 of the driving body 20 are in contact with the pressed portion 12 of the switch member 10 and the connecting shaft 22 is elastically contacting the cam surface 64 of the actuator 31. Is held by.

  According to this configuration, even if there is a predetermined gap between the connection hole 63 of the holding member 60 and the connection shaft 22 of the drive body 20, the drive body 20 is free of play due to the elastic holding force of the cam surface 64 and the actuator 31. Kept in a state. Further, since the driving body 20 is disposed so as to contact the switch member 10, the drive body 20 is held in a state where there is no backlash with the switch member 10. Further, since the holding member 60 and the operation knob 45 are also fitted, backlash does not occur in this portion. As a result, it is possible to eliminate all the play in the rotary switch device 2 without increasing the component accuracy.

  Further, in the rotary switch device 2 of the present embodiment, the drive body 20 includes a tilting shaft 21 that is pivotally supported by the support 50 and a pair of pressing portions 27 that are formed at an equal distance across the tilting shaft 21. 28. Further, a pair of switch members 10 are disposed corresponding to the pair of pressing portions 27 and 28, and the rotation fulcrum 45a of the operation knob 45 is disposed on an extension line of the tilt shaft 21 in a plan view. Yes.

  According to this configuration, the pair of switch members 10 are disposed at symmetrical positions when viewed from the tilt shaft 21 of the drive body 20 and the rotation fulcrum 45a of the operation knob 45. It moves equally on the left and right on the tangent line of the rotation of the operation knob 45. For this reason, there is no difference in operation feeling depending on the operation direction of the operation knob 45.

  Further, in the rotation type switch device 2 of the present embodiment, it is preferable that the one end side of the connecting shaft 22 is configured such that the opposing surfaces 22a and 22b facing the rotation fulcrum 45a of the operation knob 45 are substantially parallel surfaces. .

  According to this configuration, the one end side of the connecting shaft 22 has a substantially parallel shape with directionality in a plan view, so that excess play does not occur in the circumferential direction, which originally does not require a gap, and the operator can efficiently rotate. Can transmit dynamic motion and has a good operation feel.

  Further, in the rotation type switch device 2 of the present embodiment, the support body 50 includes an opening 52 a having a size that allows the holding member 60 to move in accordance with an operation of rotating the operation knob 45. In addition, it is preferable that the holding member 60 has a flange portion 62 that is disposed so as to be inserted through the opening portion 52a and that slides on the support body 50 so as to overlap the opening portion 52a in plan view.

  According to this structure, since the holding member 60 has the flange part 62 which overlaps with the opening part 52a, it can suppress that a dust etc. enter from the opening part 52a. Further, the operation knob 45 becomes a guide for the rotation operation of the operation knob 45, and the operation of the operation knob 45 is stabilized.

  Further, in the rotary switch device 2 of the present invention, the holding member 60 is further formed with a concave shape on the apex side of the substantially conical concave surface of the cam surface 64, and the concave shape rotates the operation knob 45 in plan view. It is preferable that it is the long hole 65 which makes the direction which goes to the fulcrum 45a a longitudinal direction. Thereby, a part of the substantially hemispherical tip 31 a of the actuator 31 is inserted into the elongated hole 65, and is supported by the tip 31 a contacting the edge 65 a in the short direction of the elongated hole 65.

  According to this configuration, the longitudinal direction of the long hole 65 is the direction in which the radius of rotation changes, and the tip end portion 31a of the actuator 31 is supported by the edge 65a of the long hole 65. There is no fluctuation and a stable feel can be obtained.

  As described above, the rotary switch device 2 according to the second embodiment of the present invention has been specifically described. However, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. Can be implemented. For example, the present invention can be modified as follows, and these also belong to the technical scope of the present invention.

  (1) In the present embodiment, the pair of switch members 10 are arranged at symmetrical positions when viewed from the tilting shaft 21 and the rotation fulcrum 45a, but the switch members 10 are arranged only in one of them. A rotary switch device may be used.

  (2) In the present embodiment, the holding member 60 is separate from the operation knob 45 and is fitted and held with the operation knob 45, but the holding member 60 may be integrally formed with the operation knob 45. In this case, it is preferable that the operation portion 61 is disposed so as to pass through the opening 52a and the flange portion 62 is attached so as to overlap the opening 52a. For example, the upper case 52 may be attached in combination as a member divided into two. Further, the configuration is not limited to the configuration in which the shaft portion 52 b protruding from the upper case 52 is provided, and the shaft portion may be provided in the operation knob 45 and fitted into the hole provided in the upper case 52 to be pivotally supported.

  (3) In the present embodiment, the support 50 is divided into the lower case 51, the upper case 52, and the drive mechanism portion 53, but the drive mechanism portion 53 is configured to be integrated with the lower case 51. May be. Alternatively, the drive mechanism 53 may be divided into a member integrated with the lower case 51 and a member integrated with the upper case 52.

  (4) In the present embodiment, the cam surface 64 of the holding member 60 is a substantially conical concave surface. However, the cam surface 64 is not limited to a concave surface in which the cone is vertically divided into two and connected by a rectangular tapered surface. Absent. For example, if the rectangular taper surface is made long enough in the longitudinal direction so that the longitudinal length of the elongated hole 65 is longer than the range in which the tip 31a of the actuator 31 moves, the concave shapes on both sides thereof are A tapered surface shape that is continuous with the substantially cylindrical side surface 63a and the elongated hole 65 may be used.

  (5) In the present embodiment, the one end side of the connecting shaft 22 of the drive body 20 has a substantially spherical shape as a whole, and the opposed surfaces 22a and 22b facing the rotation fulcrum 45a of the operation knob 45 are substantially parallel surfaces. Although it is configured, it may have an elliptical shape in a plan view from one end side of the connecting shaft 22.

  (6) In the present embodiment, the operation knob 45 has a rectangular shape in plan view extending from the rotation fulcrum 45a toward the operation unit 61, but the outer shape of the operation knob 45 can be designed arbitrarily. Further, the operation knob 45 is not limited to a substantially rectangular outer shape, and may be, for example, a substantially disk-shaped outer shape with the rotation fulcrum 45a as the center.

DESCRIPTION OF SYMBOLS 1, 2 Rotation type switch apparatus 10 Switch member 11 Contact part 12 Pressed part 15 Board | substrate 16 Rubber member 20 Driver 21 Tilt axis 22 Connection axis 22a, 22b Opposing surface 23, 24 Arm part 25, 26 Sliding member 27, 28 Pressing portion 31 Actuator 31a Tip portion 32 Coil spring 40 Holding member 41 Operation portion 42 Flange portion 42a Upper surface 42b Lower surface 43 Connection hole 43a Substantially cylindrical side surface 43b Virtual center line 44 Cam surface 45 Operation knob 45a Rotation fulcrum 50 Support body 51 Below Case 52 Upper case 52a Opening portion 52b Shaft portion 53 Drive mechanism portion 53a Support portion 53b, 53c Sliding portion 60 Holding member 61 Operation portion 62 Flange portion 62a Upper surface 62b Lower surface 63 Connecting hole 63a Substantially cylindrical side surface 63b Virtual center line 64 Cam Face 65 Slot 65a Edge

Claims (5)

A switch member having a contact part that is electrically connected and separated and a pressed part that returns to an initial position with elastic force;
A support body in which the switch member is housed;
A drive body that is pivotally supported by the support body so as to be tiltable, presses the pressed portion of the switch member via the pressing portion, and connects the contact portion;
The switch member is brought into and out of contact with the switch member by rotating an operation knob provided on the support so as to be rotatable in a plan view, and the switch member is released when the operation of rotating the operation knob is released. In the rotary switch device in which the operation knob is returned by the elastic force of the pressed portion of
A holding member that is integrally formed with or separate from the operation knob and is held, and that tilts the drive body,
The support includes a rotation fulcrum that allows the operation knob to rotate,
The holding member has a connection hole having a substantially cylindrical side surface, and a substantially conical concave surface that is continuous from the substantially cylindrical side surface of the connection hole and has an apex on an extension of a virtual center line of the substantially cylindrical side surface. A cam surface,
The drive body has a connecting shaft inserted into the connecting hole with a predetermined gap,
An actuator having a substantially hemispherical tip is disposed at one end of the connecting shaft and is biased in a direction in which it is elastically contacted with the cam surface.
In a non-operating state of the operation knob, the pressing portion of the driving body is in contact with the pressed portion of the switch member, and the connecting shaft is held by the elastic contact force of the actuator with respect to the cam surface A rotary switch device characterized by being provided. The drive body includes a tilting shaft that is pivotally supported by the support body, and a pair of pressing portions that are formed at an equal distance across the tilting shaft,
A pair of switch members are disposed corresponding to the pair of pressing portions, and
2. The rotary switch device according to claim 1, wherein the rotation fulcrum of the operation knob is disposed on an extension line of the tilt shaft in a plan view.   3. The rotary switch device according to claim 1, wherein a surface of the connection shaft facing the rotation fulcrum of the operation knob is a substantially parallel surface. The support includes an opening having a size capable of moving the holding member in accordance with an operation of rotating the operation knob.
The said holding member is arrange | positioned so that the said opening part may be penetrated, and has a flange part which overlaps with the said opening part and slides on the said support body by planar view, The Claims 1 thru | or The rotary switch device according to claim 3. The holding member is further formed with a concave shape on the apex side of the substantially conical concave surface of the cam surface, and the concave shape is a long hole whose longitudinal direction is the direction toward the rotation fulcrum of the operation knob in plan view. Yes,
A part of the substantially hemispherical tip of the actuator is inserted into the slot and supported by the tip contacting the edge of the slot in the short direction of the slot. The rotary switch device according to any one of claims 1 to 4, characterized in that: