JP6507852B2 - Seesaw type switch device - Google Patents

Description

  The present invention relates to a seesaw switch device.

  Conventionally, a switch knob capable of swinging operation about a rotating shaft, a conductive movable contact member (arm spring) held against the switch knob and slidingly moved according to the swing operation of the switch knob, and slide motion of an arm spring There has been proposed a seesaw type switch device including a fixed contact member (plate member) having a V-shaped cut into which an arm spring is fitted in accordance with the slide position. Patent Document 1).

JP, 2012-15002, A

  Here, in the seesaw switch device described in Patent Document 1, the fixed contact member is a flat plate extending in the same direction as the rotation axis, and a valley portion to be a V-shaped notch and a ridge portion between the valley portions are desired. It can be formed in a size that provides a sense of moderation.

  However, as shown in FIG. 7A, a plate member (for example, a plate member perpendicular to the rotation axis) 141 intersecting the rotation axis with the contact portion CP of the fixed contact member 140 with the movable contact member 120. In the case of forming in the above, there is a possibility that the height of the peak portion 142 is limited and an appropriate moderation feeling can not be obtained.

  That is, as shown in FIGS. 7A and 7B, in the case of forming the mountain portion 142 with respect to the plate member 141 intersecting the rotation axis A, the inner side from the outer side (the rotation axis outer side) of the plate member 141 The pressing process is performed so that the convex portion is formed toward (the inner side of the rotation shaft). The height of the peak portion 142 that can be formed by this pressing process is at most about the thickness of the plate member 141, and if it exceeds this, there is a high possibility that the peak portion 142 is broken. Therefore, the height of the mountain portion 142 is limited. However, since there is a restriction on the height of the mountain portion 142, there is a possibility that the moderation feeling becomes small and an appropriate moderation feeling can not be obtained. As an example, when the movable contact member 120 passes over the apex V of the peak portion 142 from the operation position P1 shown in FIG. 7B, the moderation feeling obtained when reaching the operation position P2 Only a portion corresponding to the distance L to the face VP on the vertex side (distance in the rotation axis direction) can be obtained, the moderation feeling becomes small, and there is a possibility that an appropriate moderation feeling can not be obtained.

  The present invention has been made to solve such conventional problems, and an object of the present invention is to provide a predetermined size even when forming a peak on a flat plate intersecting the rotation axis. An object of the present invention is to provide a seesaw switch device capable of obtaining an appropriate sense of moderation.

  A seesaw switch device according to the present invention includes a seesaw switch knob, a movable contact member, a plurality of fixed contact members, and a peak portion. The leg portion of the movable contact member has a spherical portion which is a substantially hemispherical surface protruding outward in the extending direction of the rotation shaft. The plurality of fixed contact members are formed on at least one plate member of a flat plate on which a mountain portion is formed and a flat plate located on the same plane as the flat plate, and the ball portion is The substantially hemispherical surface has a plurality of holes to be fitted therein.

  According to the seesaw switch device according to the present invention, it is possible to obtain an appropriate feeling of moderation having a predetermined size, even when forming a mountain portion on a flat plate intersecting with the rotation axis.

It is a perspective view of a seesaw type switch device concerning this embodiment. It is an enlarged view which shows the movable contact member shown in FIG. 1, Comprising: (a) is a top view when it sees from the rotation axis direction, (b) is a side view when it sees from the side. It is an enlarged perspective view which shows several fixed contact members shown in FIG. It is a figure which shows the detail of the 1st and 2nd vertical plate shown in FIG. 3, (a) shows a top view, (b) shows sectional drawing. It is a perspective view which shows a part of housing. It is a front view showing an arc member, (a) shows the 1st example, (b) shows the 2nd example. It is a figure which shows the comparative example of a seesaw type switch apparatus.

  Hereinafter, although a suitable embodiment of the present invention is described based on a drawing, the present invention is not limited to the following embodiment, and can be suitably changed in the range which does not deviate from the meaning of the present invention.

  FIG. 1 is a perspective view of a seesaw switch device according to the present embodiment. As shown in FIG. 1, the seesaw switch device 1 according to the present embodiment is a switch device for, for example, lighting and extinguishing a room lamp in a vehicle compartment, and includes a seesaw switch knob 10 and a movable contact member 20. , A holding member 30 provided integrally with the seesaw switch knob 10 or attached with a screw or the like, and a plurality of fixed contact members 40.

  The seesaw switch knob 10 is an insulating resin member that can be operated so as to swing around the rotation axis A, and can be operated by pressing the portions 11a and 11b that are offset to the side of the upper surface 11 . When the seesaw switch device 1 is used as a switch device for a room lamp, the upper surface 11 in FIG. 1 faces vertically downward because the switch device is provided on the ceiling.

  The movable contact member 20 is held by the holding member 30 against the seesaw switch knob 10, and is an electrically conductive member operable in the rotational direction about the rotation axis A in response to the swing operation of the seesaw switch knob 10 ( Metal members). Such a movable contact member 20 is composed of a base 21 and legs 22. The base portion 21 is attached to the holding member 30, and the leg portion 22 is a portion in contact with the plurality of fixed contact members 40. The leg portion 22 is shaped to be bifurcated from the base portion 21 in the extending direction of the rotation axis A.

  The holding member 30 includes a thick portion 31 which is thick in the rotational axis A direction and a thin portion 32 which is thin in the rotational axis A direction, and the seesaw switch knob 10 side is the thick portion 31. A thin portion 32 is integrally formed below the thick portion 31. The thickness of the thin portion 32 is about half of the thickness of the thick portion 31.

  The plurality of fixed contact members 40 are conductive metal plates provided corresponding to the respective operating positions of the movable contact members 20 (in particular, the legs 22) operable in the rotational direction. In the present embodiment, the plurality of fixed contact members 40 are constituted by the first to fourth fixed contact members 41 to 44.

  The first and second fixed contact members 41 and 42 and the third and fourth fixed contact members 43 and 44 are disposed opposite to each other with the switch movement space S interposed therebetween. The switch movement space S is a space where the bifurcated legs 22 are disposed elastically deformed inward. The movable contact member 20 (leg portion 22) described above can be rotated about the rotation axis A in the switch movement space S.

  Next, details of the movable contact member 20 and the plurality of fixed contact members 40 shown in FIG. 1 will be described.

  FIG. 2 is an enlarged view showing the movable contact member 20 shown in FIG. 1, wherein (a) is a plan view as viewed from the rotation axis direction, and (b) is a side surface as viewed from the side FIG. The movable contact member 20 shown in FIG. 2B is disposed in the switch movement space S, and the leg 22 is elastically deformed inward in the extending direction of the rotation axis A.

  The movable contact member 20 shown in FIGS. 2A and 2B is manufactured by punching a metal plate and performing processing such as pressing or bending. The base 21 of such a movable contact member 20 has a rectangular shape in plan view, and two laterally spaced through holes 21 a are formed. The movable contact member 20 is fixed to the thin portion 32 of the holding member 30 as shown in FIG. 1 by being screwed through the through hole 21a.

  The legs 22 are two conductive members that are bifurcated from the base 21 to the outside in the direction of extension of the rotation axis A, and when disposed in the switch movement space S, the legs 22 are substantially U-shaped in a convex shape. It has a letter shape. More specifically, the leg 22 includes a first leg 22a extending from the base 21 in a bifurcated manner and a second leg 22b bent inward from the direction in which the first leg extends. There is.

  Describing in more detail, the movable contact member 20 is pressed from the U-shaped inner side to the outer side at the connection portion between the base 21 and the first leg 22a, and the protruding portion 22c which is convex outward is formed. It is formed. Further, the second leg portion 22b is also subjected to pressing processing from the inside of the U-shape toward the outside on the U-shaped distal end side, and a protruding portion 22d which is convex outward is formed.

  The leg 22 is bent at a point B, and the base 21 side from the point B is the first leg 22a, and the tip side from the point B is the second leg 22b. Describing in more detail, such a leg 22 does not take into consideration the above-mentioned protrusions 22c and 22d, that is, in the case where only the end indicated by the thick line in FIG. Is a point only at point B, and the base 21 side from such a point B is the first leg 22a, and the second leg 22b is more inward than the extending direction of the first leg 22a. It is bent to

  In addition, the second leg 22b has a spherical portion 22e which is a substantially hemispherical surface protruding outward in the extending direction of the rotation axis A. The ball portion 22e is a portion which is pressed outward from the inside to the outside with respect to the protruding portion 22d of the second leg portion 22b, and is convex outward.

  The second leg 22b may be positioned inside the plane including the point B (plane including the vertical direction and the side) including the point B. In this case, the angle of the second leg 22b with respect to the plane is smaller than the angle of the first leg 22a with respect to the plane.

  FIG. 3 is an enlarged perspective view showing the plurality of fixed contact members 40 shown in FIG. As described above, the plurality of fixed contact members 40 are configured by the first to fourth fixed contact members 41 to 44. The fixed contact members 41 to 44 are perpendicular to the plane plates 41a to 44a extending in the plane direction (the extending direction of the plane including the rotation axis A and the side) and the plane plates 41a to 44a (perpendicular to the rotation axis A) The vertical plate (a plane plate intersecting with the rotation axis A, and a plane plate positioned on the same plane as the plane plate) 41b to 44b.

  One or more through holes 41c to 44c are formed in the flat plates 41a to 44a, respectively, and the flat plates 41a to 44a are screwed to the housing through the through holes 41c to 44c. Further, in the first vertical plate 41b, two holes 41d and 41e are formed, and one peak 41f is formed between the two holes 41d and 41e. One hole 42 d is formed in the second vertical plate 42 b. The first vertical plate 41b and the second vertical plate 42b are located on the same plane.

  Further, one hole 43d is formed in the third vertical plate 43b. In the fourth vertical plate 44b, two holes 44d and 44e are formed, and one peak 44f is formed between the two holes 44d and 44e. The third vertical plate 43b and the fourth vertical plate 44b are located on the same plane.

  In the present embodiment, the movable contact member 20 is configured to be capable of taking three operating positions, and in the first operating position, the two ball portions 22e of the movable contact member 20 correspond to the first holes of the first vertical plate 41b. It is fitted in the portion 41d and the hole 43d of the third vertical plate 43b. In the second operation position, the two ball portions 22e are fitted in the second hole 41e of the first vertical plate 41b and the first hole 44d of the fourth vertical plate 44b. Furthermore, in the third operation position, the two ball portions 22e are fitted into the hole 42d of the second vertical plate 42b and the second hole 44e of the fourth vertical plate 44b.

  The plurality of fixed contact members 40 are provided corresponding to the operating position so that the route of the electrical connection is determined according to the operating position of the movable contact member 20.

  FIG. 4 is a view showing the details of the first and second vertical plates 41b and 42b shown in FIG. 3, in which (a) shows a plan view and (b) shows a cross-sectional view. Although the third and fourth vertical plates 43b and 44b are not shown, the third vertical plate 43b has the same configuration as the second vertical plate 42b, and the fourth vertical plate 44b is a first vertical plate. It has the same configuration as the details of 41b.

  As shown in FIG. 4 (a), the plurality of holes 41d, 41e, 42d of the first and second vertical plates 41b, 42b are arranged side by side on one circle C centered on the rotation axis A. (Concentrically arranged). In particular, the circle C shown in FIG. 4A coincides with the rotation locus of the ball portion 22e when the seesaw switch knob 10 is operated. Further, as is apparent from FIG. 4A, the holes 41d, 41e and 42d are elongated holes extending in the radial direction around the rotation axis A.

  In addition, a peak 41f is formed between the first and second holes 41d and 41e of the first vertical plate 41b. That is, it can be said that the mountain portion 41 f is disposed between the first operation position and the second operation position. Such a peak portion 41 f is a portion that protrudes by pressing the first vertical plate 41 b from the outside toward the inside. Therefore, when the second leg 22b moves from the first operating position to the second operating position, and when the second leg 22b moves from the second operating position to the first operating position, the second leg 22b moves to the ridge 41f. It will be overcome by elastically deforming inward while sliding. The ridge portion 41 f is formed such that the ridge line RL extends in the radial direction centering on the rotation axis A.

  Further, as shown in FIG. 4B, when the ball 22e is fitted in the second hole 41e (the same is true when it is fitted in the other holes 41d and 42d), the tip T of the ball 22e is the first It projects outside the inner surface IP of the vertical plate 41b. For this reason, in the present embodiment, it is possible to obtain a sense of moderation of the distance L1 (the distance from the tip T to the ridge line RL in the extension direction) in the extension direction of the rotation axis A at the time of operation. When the holes 41d, 41e and 42d do not exist, a sense of moderation of a distance L2 in the extension direction of the rotation axis A (a distance from the inner surface IP to the ridge line RL in the extension direction) at the time of operation You can only get In particular, in the case of forming the mountain portion 41 f by pressing, if the height of the mountain portion 41 f exceeds the thickness of the vertical plate 41 b, the possibility of the mountain portion 41 f being broken increases. For this reason, when the holes 41d, 41e, 42d do not exist, the moderation feeling may be reduced due to the limitation on the height of the peak portion 41f, and an appropriate moderation feeling may not be obtained. . However, by providing the holes 41d, 41e and 42d, and forming the ball 22e in the second leg 22b, the tip T of the ball 22e protrudes outside the inner side surface IP, and a larger moderation is achieved. You can get a feeling.

  Next, description will be made with reference to FIG. 1, FIG. 5 and FIG. FIG. 5 is a perspective view showing a part of the housing. In the following description, although a part of the housing will be described with reference to the housing 50, the housing 50 is also located below the plurality of fixed contact members 40. That is, it is needless to say that the housing 50 also has a function of holding the plurality of fixed contact members 40 by screwing with the plurality of fixed contact members 40.

  First, as shown in FIG. 1, the holding member 30 is provided with two contact ribs 33 that project in the outward direction of the rotation axis A. The abutment rib 33 includes a semi-cylindrical post 33a standing from the thick portion 31, an arc-shaped arc member 33b further projecting from the post 33a in the outward direction of the rotation axis A, and an arc member 33b. It consists of a thick wall portion 33c provided inside.

  The contact rib 33 is configured such that the tip of the arc member 33b (the end face in the outward direction of the rotation axis A) contacts or approaches the housing 50 shown in FIG. FIG. 6 is a front view showing the arc member 33b, in which (a) shows a first example and (b) shows a second example. As shown in FIG. 6A, the arc member 33b is a member continuously provided concentrically with the rotation axis A. The arc member 33 b has an arc of an angle equal to or larger than the maximum stroke angle θmax of the movable contact member 20. In the present embodiment, the maximum stroke angle θmax is a rotation angle from the first operation position to the third operation position, and is a rotation angle required to move between the operation positions at which the movable contact member 20 is most separated.

  Further, as shown in FIG. 6 (b), the arc members 33b may be provided so as to be concentrically distributed around the rotation axis A. In the example shown in FIG. 6 (b), the arc member 33 b is formed of first to fifth cylindrical protrusions 33 b 1 to 33 b 5, and these cylindrical protrusions 33 b 1 to 33 b 5 are provided in a circle centered on the rotation axis A. ing. The arc member 33 b shown in FIG. 6 (b) also has an arc of an angle equal to or greater than the maximum stroke angle θmax of the movable contact member 20. That is, the angle from the first cylindrical projection 33b1 located at one end of the arc to the fifth cylindrical projection 33b5 located at the other end of the arc is equal to or greater than the maximum stroke angle θmax.

Further, as shown in both FIGS. 6 (a) and 6 (b), the arc member 33b, when comparing the projected distance in the vertical direction relative to the axis of rotation A, over a distance L _UP is shorter than the lower distance L _UN It has become.

  Such an arc member 33 b is inserted into the guide groove G of the housing 50 shown in FIG. 5. As shown in FIG. 5, the housing 50 includes first and second members 51 and 52 which are provided laterally spaced apart, and a third member 53 which is provided between the members 51 and 52, and is surrounded by these members. The space portion that functions as the guide groove G functions.

  In detail, the first and second members 51 and 52 have a shape in which one corner of a substantially rectangular parallelepiped member is cut out, and the notches 51a and 52a formed by cutting the corners are mutually different. They are arranged to face each other and face upward.

  The third member 53 is disposed between and slightly above the first and second members 51 and 52, and a downward protrusion 53a is formed. When the arc member 33 b is inserted into the guide groove G, the wall 33 c comes in contact with the protrusion 53 a, and the protrusion 53 a functions as a fulcrum supporting the rotation of the contact rib 33.

  The cooperation of the arc member 33 b and the guide groove G of the housing 50 causes the contact rib 33 to rotate. For this reason, the movable contact member 20 can be operated to rotate without requiring the rotation shaft member provided on the rotation shaft A.

  Next, the operation according to the present embodiment will be described. First, in the seesaw switch device 1 according to the present embodiment, the two leg portions 22 of the movable contact member 20 are inserted and arranged in the switch movement space S between the plurality of fixed contact members 40 disposed opposite to each other. At this time, the two legs 22 are elastically deformed inward and inserted into the switch movement space S. As a result, the two leg portions 22 become substantially U-shaped convex upward in a side view, and the ball portions 22e press the holes 41d, 41e, 42d, 43d, 44d, 44e at each operation position. It will fit in as it is.

  Here, the movable contact members 20 are not fixed to the plurality of fixed contact members 40 due to variations in the members 33 and 51 to 53 when the holding member 30 and the housing 50 are formed, and errors in attaching the thin portion 32 of the base 21. On the other hand, it may be mounted up and down with respect to the normal time (for example, zero tolerance). For this reason, the pressing force of the leg portion 22 of the movable contact member 20 with respect to the plurality of fixed contact members 40 is changed. However, in the present embodiment, the leg 22 is bent at the point B, and the inclination angle of the second leg 22b with respect to the plurality of fixed contact members 40 (particularly, the vertical plates 41b to 44b) is higher than that of the first leg 22a. Since it becomes gentle, it is possible to make the change in pressing force smaller with respect to the vertical displacement, and to suppress the change in operation feeling.

  In addition, since the amount of change in the pressing force of the leg portion 22 on the plurality of fixed contact members 40 becomes small according to the three operation positions because the inclination angle becomes gentle, the operation feeling similarly changes. Can be suppressed.

  In the present embodiment, the movable contact member 20 has the ball portion 22e, and the plurality of fixed contact members 40 are arranged concentrically of the rotation axis A in which the substantially hemispherical surface of the ball portion 22e fits in each operating position. Holes 41d, 41e, 42d, 43d, 44d and 44e. Therefore, the plurality of holes 41d, 41e, 42d, 43d, 44d, 44e, which are contacts of the plurality of fixed contact members 40, are arranged concentrically with respect to the ball 22e, which is the contact of the movable contact member 20. The pressing force of the leg portion 22 on the plurality of fixed contact members 40 does not change according to the operation position, and the change of the operation feeling is further suppressed.

  In addition, the plurality of holes 41 d, 41 e, 42 d, 43 d, 44 d, 44 e are arranged concentrically, and the ball 22 e is formed in the holes 41 d, 41 e, 42 d, depending on the operating position of the movable contact member 20. It will be inserted into 43d, 44d and 44e. Here, although the holes 41d, 41e, 42d, 43d, 44d, 44e according to the present embodiment are elongated holes extending in the radial direction around the rotation axis A, the width of the long holes is that of the ball portion 22e. It is smaller than the diameter. For this reason, as shown in FIG. 4B, the ball portion 22e comes in contact with the two corner portions D in the inner wall of the holes 41d, 41e, 42d, 43d, 44d and 44e, and the two-point contact Can reduce the possibility of contact failure. In particular, since the plurality of holes 41 d, 41 e, 42 d, 43 d, 44 d and 44 e are elongated holes extending in the radial direction around the rotation axis A, the leg 22 is elastically deformed due to the influence of dimensional tolerances and the like. It becomes difficult for the ball portion 22e to enter the holes 41d, 41e, 42d, 43d, 44d and 44e according to the displacement in the expansion / contraction direction (that is, the displacement in the radial direction), thereby preventing the contact failure from easily occurring. .

  In addition, the peak portions 41f and 44f are formed by pressing so that a part of the vertical plates 41b and 44b protrudes inward. Therefore, the heights of the mountain portions 41f and 44f are limited. On the other hand, the leg portion 22 has a ball portion 22e, and the plurality of fixed contact members 40 have a plurality of holes 41d, 41e, 42d, 43d, 44d, 44e into which the substantially hemispherical surface of the ball portion 22e fits. For this reason, the ball portion 22e is inserted into the holes 41d, 41e, 42d, 43d, 44d, and 44e, and the tip end T of the ball portion 22e is vertical through the holes 41d, 41e, 42d, 43d, 44d, and 44e. It projects outside the inner side surface IP of the plates 41b and 44b. Therefore, when the ball portion 22e passes over the mountain portions 41f and 44f, it is possible to obtain a sense of moderation for the distance L2 from the apex T of the mountain portion (ridge line RL) to the inner surface IP.

  In particular, ridges 41f and 44f have ridges RL extending radially around rotation axis A, so that ball portions 22e formed on legs 22 in accordance with the switch operation are perpendicular to ridges RL. From the top, and the change in the contact angle to the ridge line RL prevents the moderation feeling from changing. That is, when the ridge line RL extends in the vertical direction, the contact angle of the ball portion 22e with the ridge line RL is different when moving from the first operation position to the second operation position and from the second operation position to the third operation position. The moderation may change, but this is prevented in the present embodiment.

  Furthermore, since the holding member 30 is provided with the abutment rib 33 which protrudes in the outward direction of the rotation axis A and whose tip is in contact with or close to the housing 50, the abutment rib 33 is provided even if a force in the twisting direction is applied. This force can be suppressed by contacting the housing 50, and for example, rattling in the twist direction can be suppressed when a twisting force is applied by a user operation or the like. Here, the force in the twisting direction is, for example, a force in the rotation direction such that one end of the rotation axis A is directed to the other end and the other end is directed to the one end.

  In particular, as shown in FIG. 2A, since the movable contact member 20 according to the present embodiment is laterally offset and provided with the bifurcated leg 22, the plurality of fixed contact members of the leg 22 are provided. By pressing on 40, a twisting force is always applied. Therefore, the pressing rib 33 also has the effect of suppressing the twisting force constantly applied.

  In addition, the application rib 33 has an arc-shaped arc member 33b which is continuous or scattered concentrically with the rotation axis A, and the housing 50 is an arc centered on the rotation axis A with which the arc member 33b matches. It has a guide groove G for guiding the rotation of the member 33b. Therefore, the seesaw switch knob 10 can be made pivotable by utilizing the circular arc member 33b and the guide groove G which are concentric with the rotation axis A, and the shaft member disposed on the rotation axis A is provided. There is no need for this, and the rocking operation can be made possible.

  In addition, since the arc member 33b has an arc for an angle equal to or greater than the maximum stroke angle θmax of the movable contact member 20, the arc member 33b and the guide groove extend over the entire moving region moved by the swing operation of the seesaw switch knob 10. G is used to guide the rotation of the movable contact member 20.

Furthermore, when the arc member 33 b is compared with the projection distance in the vertical direction with respect to the rotation axis A, the upper distance L _UP is shorter than the lower distance L _UN . For this reason, when the vicinity of the rotation axis A is visually recognized from the gap of the housing 50 and the like, there is no member on the rotation axis A, and not only that such a member is visually recognized but also the arc member 33b is arranged backwards As a result, it becomes difficult to be recognized visually, and the design will be improved.

  Thus, according to the seesaw switch device 1 according to the present embodiment, the mountain portions 41 f and 44 f are formed such that a portion of the vertical plates 41 b and 44 b intersecting with the rotation axis A project inward. It is formed by pressing. Therefore, the heights of the mountain portions 41f and 44f are limited. On the other hand, the leg portion 22 has a ball portion 22e, and the plurality of fixed contact members 40 have a plurality of holes 41d, 41e, 42d, 43d, 44d, 44e into which the substantially hemispherical surface of the ball portion 22e fits. And the fourth vertical plates 41b and 44b (planar plates) and the second and third vertical plates (the same planar plates positioned on the same plane as the planar plates) 42b and 43b. For this reason, the ball portion 22e is inserted into the holes 41d, 41e, 42d, 43d, 44d, and 44e, and the tip end T of the ball portion 22e is vertical through the holes 41d, 41e, 42d, 43d, 44d, and 44e. It will project on the outside rather than inner side IP of plates 41b-44b. Therefore, when the ball 22e passes over the peaks 41f and 44f, the tip T of the ball 22e is moved in the rotation axis direction by the distance L1 from the ridge line RL of the peaks 41f and 44f to the protruding position thereof. Thus, even if the heights of the peak portions 41f and 44f are limited, the amount of movement in the rotational axis direction can be made larger than the heights of the peak portions 41f and 44f. Therefore, even in the case where the peak portions 41f and 44f are formed on the first and fourth vertical plates 41b and 44b intersecting the rotation axis A, it is possible to obtain an appropriate moderation feeling having a predetermined size.

  In addition, since the mountain portion 41f has the ridge line RL extending in the radial direction around the rotation axis A, the ball portion 22e formed on the leg portion 22 in contact with the ridge line RL in the vertical direction according to the switch operation As a result, it is possible to prevent the moderation feeling from changing due to the difference in the contact angle with the ridge line RL.

  Further, since the plurality of holes 41d, 41e, 42d, 43d, 44d and 44e are elongated holes extending in the radial direction around the rotation axis A, the leg 22 is elastically deformed due to the influence of dimensional tolerance or the like. It becomes difficult for the ball 22e to enter the holes 41d, 41e, 42d, 43d, 44d and 44e according to the displacement in the expansion and contraction direction, or the ball 22e contacts the holes 41d, 41e, 42d, 43d, 44d and 44e. It is possible to prevent a defect from easily occurring.

  As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to the said embodiment, You may add a change in the range which does not deviate from the meaning of this invention.

  For example, the seesaw switch device 1 according to the present embodiment does not have a shaft member on the rotation axis A, and can be operated so as to swing around the rotation axis A by the arc member 33 b and the guide groove G of the housing 50. However, the present invention is not limited to this, and may be applied to one having a shaft member on the rotation axis A.

  Further, the movable contact member 20 is provided with the ball portion 22e, and the plurality of fixed contact members 40 are not provided with the plurality of holes 41d, 41e, 42d, 43d, 44d, 44e, for example, the plurality of holes 41d, The contact structure can be changed as appropriate, such as adopting a recess instead of 41e, 42d, 43d, 44d, 44e.

  Furthermore, the shapes of the holes 41d, 41e, 42d, 43d, 44d and 44e and the directions of the ridge lines RL of the peaks 41f and 44f can be changed as appropriate, and the plurality of fixed contact members 40 are also vertical. It is not restricted to what is provided with plates 41b-44b. The vertical plates 41b to 44b are not limited to those perpendicular to the flat plates 41a to 44a, but may be plate members intersecting the rotation axis A such as those standing at an angle of 80 degrees, for example. .

  Moreover, in the said embodiment, although the 1st leg 22a and the 2nd leg 22b are continuing through point B, it does not restrict to this, and between the 1st leg 22a and the 2nd leg 22b , And third and fourth legs may be interposed.

1: Seesaw switch device 10: Seesaw switch knob 20: movable contact member 21: base 22: leg 22a: first leg 22b: second leg 22e: ball 30: holding member 33: contact member 33: rib 33b: arc Members 40: plural fixed contact members 41 to 44: fixed contact members 41b to 44b: vertical plates 41d, 41e, 42d, 43d, 44d, 44e: holes 41f, 44f: ridges 50: housing G: guide groove A: Rotation axis RL: ridge line S: switch movement space

Claims (3)

Seesaw switch knob that can be rocked around a rotating shaft,
A conductive movable contact member having a leg that bifurcates in a direction in which the rotation shaft extends, and in which the leg operates in a rotation direction about the rotation shaft according to a swing operation of the seesaw switch knob When,
A plurality of switch portions disposed opposite to each other across a switch movement space which is a space for elastically deforming and disposing the bifurcated leg portions inward and corresponding to the respective operating positions of the leg portions moving in the rotational direction Fixed contact members,
The rotation is arranged so that the leg portion is elastically deformed and overcomes more inward while sliding when the leg portion passes through the arrangement location while being disposed in at least one of the respective operating positions. And a peak portion formed by pressing a part of a flat plate intersecting with the axis into the inside by pressing.
The leg portion has a spherical portion that is a substantially hemispherical surface protruding outward in the extension direction of the rotation shaft,
The plurality of fixed contact members are formed on at least one plate member of the flat plate and the same flat plate positioned on the same plane as the flat plate, and the substantially hemispherical surface of the spherical portion at each operation position of the leg A seesaw-type switch device characterized by having a plurality of hole parts which fit in. The seesaw switch device according to claim 1, wherein the ridge portion has a ridge line radially extending around the rotation axis. The seesaw switch device according to any one of claims 1 and 2, wherein at least one of the plurality of holes is an elongated hole extending in a radial direction around the rotation axis. .

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