JP2016225010A - Seesaw type switch device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seesaw type switch device which can suppress positional deviation of a movable contact member in a vertical direction, or change of operational feeling according to active position of the movable contact member.SOLUTION: A seesaw type switch device 1 comprises: a seesaw switch knob 10; a movable contact member 20; and a plurality of fixed contact members 40. The movable contact member 20 comprises a proximal part 21 which is fixed to the seesaw switch knob 10; and a leg part 22 which is stretched in a two-pronged shape from the proximal part 21 to an extended direction of a rotation axis A. The fixed contact members 40 are disposed facing to each other sandwiching a switch movement space S which is arranged by elastically deforming the leg part 22 stretched in the two-pronged shape in an inside direction. The leg part 22 comprises: a first leg part 22a which is extended stretching in the two-pronged shape from the proximal part 21; and a second leg part 22b which is extended from the first leg part 22a while folding in an inner direction than the extending direction of the first leg part 22a and contacts with the fixed contact member 40.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a seesaw type switching device.

  Conventionally, a switch knob that can be swung around a rotating shaft, a conductive movable contact member (arm spring) that is held by the switch knob and that slides according to the swinging operation of the switch knob, and a sliding movement of the arm spring A seesaw type switching device has been proposed that includes a plate member that slides and has a valley member that has a V-shaped cut into which an arm spring fits according to the slide position (see, for example, Patent Document 1). .

JP 2012-1502 A

  However, as shown in FIG. 7, the seesaw type switching device described in Patent Document 1 is bifurcated so as to have a V shape when the arm spring 120 is viewed from a predetermined direction. In the case of being attached with a deviation in the direction, the pressing force of the arm spring 120 against the plate member 140 changes according to the deviation amount, and the operational feeling changes.

  Furthermore, as shown in FIG. 8, the arm spring 120 rotates about the rotation axis A, so that the contact location of the flat plate member 140 differs depending on the operating position, and the operational feeling changes. It was something that would end up. Specifically, when the arm spring 120 is located at the first operation position 120a, the length from the rotation axis A to the contact position with the plate member 140 is the distance La. On the other hand, when the arm spring 120 moves to the second operation position 120b, the length from the rotation axis A to the contact position with the plate member 140 is the distance Lb. For this reason, the pressing force of the arm spring 120 against the plate member 140 changes according to the operating position, similarly to the vertical displacement with reference to FIG. 7, and the operational feeling changes.

  The present invention has been made to solve such a conventional problem, and the purpose of the present invention is to change the operational feeling according to the vertical displacement of the movable contact member and the operating position of the movable contact member. An object of the present invention is to provide a seesaw type switching device that can suppress the occurrence of such a situation.

  A seesaw type switch device according to the present invention includes a seesaw switch knob, a movable contact member, and a plurality of fixed contact members, and the movable contact member has a leg portion that extends in a forked direction from the base portion in the extending direction of the rotating shaft. Have. The plurality of fixed contact members are arranged to face each other with a switch movement space serving as a space for elastically deforming and arranging the leg portions extending in two forks. Such a leg portion extends from the base portion into a forked portion, extends from the first leg portion in a state of being bent inward with respect to the extending direction of the first leg portion, and contacts the fixed contact member. And a second leg portion.

  According to the seesaw type switch device according to the present invention, it is possible to prevent the operational feeling from changing according to the vertical displacement of the movable contact member and the operation position of the movable contact member.

It is a perspective view of the 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 a rotating shaft direction, (b) is a side view at the time of seeing from the side. FIG. 2 is an enlarged perspective view showing a plurality of fixed contact members shown in FIG. 1. It is a figure which shows the detail of the 1st and 2nd vertical plate shown in FIG. 3, (a) shows the top view, (b) has shown sectional drawing. It is a perspective view which shows a part of housing. It is a front view which shows an arc member, (a) shows a 1st example, (b) has shown the 2nd example. It is a 1st figure which shows the conventional seesaw type switch apparatus. It is a 2nd figure which shows the conventional seesaw type switch apparatus.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments, and can be appropriately changed without departing from the spirit of the present invention.

  FIG. 1 is a perspective view of a seesaw type switching device according to the present embodiment. As shown in FIG. 1, a seesaw type switching device 1 according to this embodiment is a switching device for turning on and off a room lamp in a vehicle interior, for example, and includes a seesaw switch knob 10, a movable contact member 20, and the like. The holding member 30 is provided integrally with the seesaw switch knob 10 or by screws or the like, and a plurality of fixed contact members 40 are provided.

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

  The movable contact member 20 is held with respect to the seesaw switch knob 10 via the holding member 30, and is a conductive member (movable in the rotation direction around the rotation axis A in accordance with the swing operation of the seesaw switch knob 10). Metal member). Such a movable contact member 20 includes a base portion 21 and a leg portion 22. The base portion 21 is attached to the holding member 30, and the leg portion 22 is a portion that comes into contact with the plurality of fixed contact members 40. The leg portion 22 has a shape that extends from the base portion 21 in a forked direction in the extending direction of the rotation axis A.

  The holding member 30 includes a thick portion 31 that is thick in the direction of the rotation axis A and a thin portion 32 that is thin in the direction of the rotation axis A. The thick portion 31 is on the seesaw switch knob 10 side. The 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 respective operation positions of the movable contact member 20 (particularly the leg portion 22) that can be operated in the rotation direction. In the present embodiment, the plurality of fixed contact members 40 are configured by 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 to face each other with the switch movement space S interposed therebetween. The switch movement space S is a space in which the leg portion 22 that is bifurcated is elastically deformed inward. The movable contact member 20 (leg portion 22) is rotated around 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.

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

  The movable contact member 20 shown in FIG. 2A and FIG. 2B is manufactured by punching a metal plate and performing processing such as pressing and bending. The base 21 of such a movable contact member 20 has a rectangular shape in plan view, and two through holes 21a that are laterally separated 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 leg portion 22 is two conductive members that are bifurcated from the base portion 21 to the outer side in the extending direction of the rotation axis A, and is substantially U-shaped when it is disposed in the switch movement space S. It has a letter shape. More specifically, the leg portion 22 is composed of a first leg portion 22a extending from the base portion 21 in a bifurcated manner and a second leg portion 22b bent inward from the extending direction of the first leg portion. Yes.

  More specifically, the movable contact member 20 has a protruding part 22c that is pressed outwardly from the U-shaped inner side to the outer side at the connection part between the base 21 and the first leg part 22a, and has a convex part outward. Is formed. Further, the second leg portion 22b is also pressed on the U-shaped tip side from the U-shaped inner side to the outer side to form a protruding portion 22d that protrudes outward.

  The leg 22 is bent at a point B, the base 21 side from the point B is a first leg 22a, and the tip side from the point B is a second leg 22b. More specifically, such a leg portion 22 is a bent portion when the above-described protrusions 22c and 22d are not considered, that is, when only the end portion indicated by the bold line in FIG. Is only one point B, and the base 21 side from such point B is the first leg 22a, and the second leg 22b is on the inner side of the extending direction of the first leg 22a. It has been folded into

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

  Note that the second leg portion 22b may have its tip positioned on the inner side of the plane including the point B (the plane including the vertical direction and the side). In this case, the angle of the second leg portion 22b with respect to the plane is made smaller than the angle of the first leg portion 22a with respect to the plane.

  FIG. 3 is an enlarged perspective view showing a 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. Each of the fixed contact members 41 to 44 extends in a plane direction (a plane extending direction including the rotation axis A and the side), and is perpendicular to the plane plates 41a to 44a (perpendicular to the rotation axis A). And vertical plates 41b to 44b raised in the plane direction).

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

  The third vertical plate 43b has one hole 43d. 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 able to take three operating positions, and the two ball portions 22e of the movable contact member 20 are in the first hole of the first vertical plate 41b in the first operating position. The portion 41d and the hole 43d of the third vertical plate 43b are fitted. In the second operation position, the two ball portions 22e are fitted in the second hole portion 41e of the first vertical plate 41b and the first hole portion 44d of the fourth vertical plate 44b. Furthermore, in the third operating position, the two ball portions 22e are fitted into the hole portion 42d of the second vertical plate 42b and the second hole portion 44e of the fourth vertical plate 44b.

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

  4A and 4B are diagrams showing details of the first and second vertical plates 41b and 42b shown in FIG. 3, wherein FIG. 4A is a plan view and FIG. 4B is a cross-sectional view. Although illustration of the third and fourth vertical plates 43b and 44b is omitted, the third vertical plate 43b has the same configuration as the details of the second vertical plate 42b, and the fourth vertical plate 44b is the first vertical plate. The configuration is the same as the details of 41b.

  As shown in FIG. 4A, 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. (Arranged concentrically). In particular, the circle C shown in FIG. 4 coincides with the rotation trajectory of the spherical portion 22e when the seesaw switch knob 10 is operated. As is clear from FIG. 4A, each of the holes 41d, 41e, and 42d is a long hole that extends in the radial direction about 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 peak portion 41f is disposed between the first operation position and the second operation position. Such a peak 41f is a portion that protrudes from the first vertical plate 41b by pressing from the outside to the inside. For this reason, 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 is moved to the peak 41f. It will get over by sliding more elastically while sliding. Such a ridge 41f is formed such that its ridge line RL extends in a radial direction centering on the rotation axis A.

  Further, as shown in FIG. 4B, when the ball portion 22e is fitted in the second hole portion 41e (the same applies when fitting in the other hole portions 41d and 42d), the tip T of the ball portion 22e is the first It protrudes outside the inner surface IP of the vertical plate 41b. For this reason, in the present embodiment, it is possible to obtain a moderation feeling of a distance L1 in the extending direction of the rotation axis A (a distance from the tip T to the ridge line RL in the extending direction) during operation. When the holes 41d, 41e, and 42d are not present, a moderation feeling of a distance L2 in the extending direction of the rotation axis A during operation (a distance from the inner surface IP to the ridge line RL in the extending direction). You can only get it. In particular, when the peak portion 41f is formed by pressing, if the height of the peak portion 41f exceeds the thickness of the vertical plate 41b, the possibility that the peak portion 41f breaks increases. For this reason, when the hole portions 41d, 41e, and 42d do not exist, the feeling of moderation becomes small due to the limitation on the height of the peak portion 41f, and there is a possibility that an appropriate feeling of moderation cannot be obtained. . However, by providing the hole portions 41d, 41e, and 42d and forming the spherical portion 22e on the second leg portion 22b, the tip T of the spherical portion 22e protrudes outward from the inner side surface IP, so that a greater moderation is achieved. A feeling can be obtained.

  Next, a description will be given with reference to FIGS. FIG. 5 is a perspective view showing a part of the housing. In the following description, a part of the housing is described with reference to the housing 50, but the housing 50 is also located below the plurality of fixed contact members 40. That is, it goes without saying that the housing 50 is also screwed to the plurality of fixed contact members 40 and has a function of holding the plurality of fixed contact members 40.

  First, as shown in FIG. 1, the holding member 30 includes two abutment ribs 33 protruding in the outer direction of the rotation axis A. The abutment rib 33 includes a semi-cylindrical column portion 33a that stands up from the thick portion 31, an arc-shaped arc member 33b that protrudes further outward from the rotation axis A from the column portion 33a, and an arc member 33b. It consists of a thick wall portion 33c provided inside.

  The abutment rib 33 is configured such that the tip of the arc member 33b (the end surface in the outer direction of the rotation axis A) is in contact with or close to the housing 50 shown in FIG. FIG. 6 is a front view showing the arc member 33b, where (a) shows a first example and (b) shows a second example. As shown in FIG. 6A, the arc member 33 b is a member that is continuously provided concentrically with the rotation axis A. The arc member 33b has an arc for an angle greater than or equal to 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 for the movable contact member 20 to move between the operation positions that are farthest away.

  Further, as shown in FIG. 6B, the arc members 33b may be provided concentrically with the rotation axis A. In the example shown in FIG. 6B, the arc member 33b is composed of first to fifth columnar projections 33b1 to 33b5, and these columnar projections 33b1 to 33b5 are provided in a circular shape with the rotation axis A as the center. ing. The arc member 33b shown in FIG. 6B also has an arc for 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 protrusion 33b1 located at one end of the arc to the fifth cylindrical protrusion 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 FIG. 6A and FIG. 6B, the arc member 33b has an upper distance L _UP shorter than a lower distance L _UN when compared with the protrusion distance in the vertical direction with respect to the rotation axis A. It has become.

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

  Specifically, the first and second members 51 and 52 have a shape in which one corner portion of a substantially rectangular parallelepiped member is cut out, and the cutout portions 51a and 52a formed by cutting out the corner portions are mutually connected. It arrange | positions so that it may oppose and may face upward.

  The third member 53 is arranged between the first and second members 51 and 52 and slightly above, and has a downward projection 53a. In a state where the arc member 33b is inserted into the guide groove G, the wall portion 33c comes into contact with the projection 53a, and the projection 53a functions as a fulcrum that supports the rotation of the contact rib 33.

  The abutment rib 33 is rotated by the cooperation of the arc member 33b and the guide groove G of the housing 50. For this reason, the movable contact member 20 can be rotated without requiring a rotating shaft member provided on the rotating shaft A.

  Next, the operation according to this embodiment will be described. First, in the seesaw type 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 arranged to face each other. At this time, the two leg portions 22 are elastically deformed inward and inserted into the switch movement space S. As a result, the two leg portions 22 have a substantially U shape that is convex upward when viewed from the side, and the ball portion 22e is pressed against the holes 41d, 41e, 42d, 43d, 44d, and 44e at each operation position. Will be fitted.

  Here, the movable contact member 20 becomes a 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, errors in attachment to the thin portion 32 of the base portion 21, and the like. On the other hand, it may be attached with a vertical shift from the normal time (for example, zero tolerance). For this reason, the pressing force of the leg portion 22 of the movable contact member 20 on the plurality of fixed contact members 40 changes. However, in this embodiment, the leg part 22 is bent at the point B, and the inclination angle of the second leg part 22b with respect to the plurality of fixed contact members 40 (particularly the vertical plates 41b to 44b) is larger than that of the first leg part 22a. Since it becomes gentle, it is possible to reduce the change in the pressing force with respect to the vertical displacement and to suppress the change in the operational feeling.

  In addition, because the inclination angle is gentle, the amount of change in the pressing force of the leg portion 22 against the plurality of fixed contact members 40 is also reduced according to the three operation positions, so that the operational feeling similarly changes. Can be suppressed.

  In the present embodiment, the movable contact member 20 has a sphere portion 22e, and the plurality of fixed contact members 40 are arranged in a concentric manner with the rotation axis A into which the substantially hemispherical surface of the sphere portion 22e is fitted at the operating position. Holes 41d, 41e, 42d, 43d, 44d, and 44e. For this reason, a plurality of holes 41d, 41e, 42d, 43d, 44d, 44e serving as contacts of the plurality of fixed contact members 40 are arranged concentrically with respect to the spherical portion 22e serving as the contact of the movable contact member 20. The pressing force of the leg portion 22 against the plurality of fixed contact members 40 does not change according to the operation position, and the operation feeling is further suppressed from changing.

  In addition, a plurality of hole portions 41d, 41e, 42d, 43d, 44d, and 44e are arranged concentrically, and the ball portion 22e has holes 41d, 41e, 42d, and 42d according to the respective operating positions of the movable contact member 20. It will fit in 43d, 44d, 44e. Here, the hole portions 41d, 41e, 42d, 43d, 44d, and 44e according to the present embodiment are elongated holes that extend in the radial direction around the rotation axis A, and the width of the elongated holes is that of the spherical portion 22e. It is smaller than the diameter. For this reason, as shown in FIG. 4B, the ball portion 22e comes into contact at the two corners D on the inner wall of the holes 41d, 41e, 42d, 43d, 44d, and 44e. This reduces the possibility of contact failure. Particularly, since the plurality of holes 41d, 41e, 42d, 43d, 44d, and 44e are elongated holes that extend in the radial direction around the rotation axis A, the leg portions 22 that are elastically deformed due to the influence of dimensional tolerances and the like. The ball portion 22e is less likely to enter the holes 41d, 41e, 42d, 43d, 44d, and 44e in accordance with the displacement in the expansion / contraction direction (that is, the displacement in the radial direction), thereby preventing the occurrence of poor contact. .

  The peaks 41f and 44f are formed by pressing so that part of the vertical plates 41b and 44b protrudes inward. For this reason, the peaks 41f and 44f are limited in their height. 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 hole portions 41d, 41e, 42d, 43d, 44d, and 44e into which the substantially hemispherical surface of the ball portion 22e is fitted. For this reason, when the spherical portion 22e is fitted into the holes 41d, 41e, 42d, 43d, 44d, and 44e, the tip T of the spherical portion 22e is perpendicular to the holes 41d, 41e, 42d, 43d, 44d, and 44e. The plates 41b and 44b protrude outward from the inner side surface IP. Therefore, when the ball portion 22e gets over the mountain portions 41f and 44f, it is possible to obtain a moderation feeling of the distance L2 from the tip T of the mountain portion (ridge line RL) to the inner side surface IP.

  In particular, the ridges RL of the ridges 41f and 44f extend in the radial direction around the rotation axis A, so that the sphere 22e formed on the leg 22 according to the switch operation is perpendicular to the ridge RL. Therefore, the feeling of moderation is prevented from changing due to the difference in the contact angle with respect to the ridge line RL. That is, when the ridge line RL extends in the vertical direction, the contact angle of the spherical portion 22e with respect to 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. Although the moderation may change, this embodiment prevents this.

  Furthermore, since the holding member 30 is provided with a contact rib 33 that protrudes in the outer direction of the rotation axis A and the tip of the holding member 30 is in contact with or close to the housing 50, the contact rib 33 is formed even if a force in the twisting direction is applied. This force is suppressed by coming into contact with the housing 50. For example, when a twisting force is applied by a user operation or the like, a backlash in the twisting direction can be suppressed. Here, the torsional force is, for example, a rotational force such that one end side of the rotating shaft A is directed to the other end side and the other end side is directed to the one end side.

  In particular, as shown in FIG. 2 (a), the movable contact member 20 according to the present embodiment is provided with bifurcated leg portions 22 that are laterally displaced, and therefore, a plurality of fixed contact members of the leg portions 22. By pressing against 40, a twisting force is always applied. For this reason, there is also an effect of suppressing the twisting force constantly applied by the contact rib 33.

  The abutment rib 33 has an arcuate arc member 33b which is concentrically continuous or scattered with respect to the rotation axis A, and the housing 50 is an arc centered on the rotation axis A while the arc member 33b matches. A guide groove G is provided for guiding the rotation of the member 33b. For this reason, the seesaw switch knob 10 can be swung using the circular arc member 33b and the guide groove G which are concentric with respect to the rotation axis A, and the shaft member disposed on the rotation axis A is provided. There is no need, and the swinging operation becomes possible.

  Further, since the arc member 33b has an arc corresponding to an angle equal to or larger than the maximum stroke angle θmax of the movable contact member 20, the arc member 33b and the guide groove are extended 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, the arc member 33b has an upper distance L _UP shorter than a lower distance L _UN when compared with the protrusion distance in the vertical direction with respect to the rotation axis A. For this reason, when the vicinity of the rotation axis A is visually recognized from the gap of the housing 50 or the like, since there is no member on the rotation axis A, such a member is not visually recognized, and the arc member 33b is also disposed behind. Therefore, it becomes difficult to be visually recognized, and the design is improved.

  Thus, according to the seesaw type switching device 1 according to the present embodiment, the leg portion 22 includes the first leg portion 22a extending from the base portion 21 in a bifurcated manner and the inner side of the extending direction of the first leg portion 22a. The second leg portion 22b that contacts the fixed contact member 40 extends from the first leg portion 22a and is in contact with the fixed contact member 40. It will contact with the member 40 in a state where the contact angle is relaxed. Thereby, even if it is a case where it shifts up and down compared with the V-shaped leg, the pressing force against the fixed contact member 40 is less likely to change by the amount that the contact angle is relaxed. Further, even if the movable contact member 20 moves in the rotation direction about the rotation axis A and the contact position with the fixed contact member 40 may change, the amount of change in the pressing force can be suppressed. it can. Therefore, it is possible to prevent the operational feeling from changing depending on the vertical displacement of the movable contact member 20 or the operation position of the movable contact member 20.

  The plurality of fixed contact members 40 have a plurality of holes 41d, 41e, 42d, 43d, 44d, and 44e into which the substantially hemispherical surface of the spherical portion 22e is fitted at each operation position of the movable contact member 20. The holes 41d, 41e, 42d, 43d, 44d, and 44e are arranged concentrically with respect to the rotation axis A. For this reason, the pressing force against the fixed contact member 40 is suppressed by the second leg portion 22b bent inward from the extending direction of the first leg portion 22a. Depending on the operating position, the holes 41d, 41e, 42d, 43d, 44d, and 44e will be fitted, and the possibility of contact failure can be reduced.

  As described above, the present invention has been described based on the embodiments, but the present invention is not limited to the above-described embodiments, and modifications may be made without departing from the spirit of the present invention.

  For example, the seesaw type switching device according to the present embodiment is not provided with a shaft member on the rotation axis A, and can be swung around the rotation axis A by the arc member 33b and the guide groove G of the housing 50. However, the present invention is not limited to this, and the present invention may be applied to one provided with a shaft member on the rotation axis A.

  Further, the movable contact member 20 is not limited to having the ball portion 22e and the plurality of fixed contact members 40 having the plurality of hole portions 41d, 41e, 42d, 43d, 44d, and 44e. Instead of 41e, 42d, 43d, 44d, and 44e, the contact structure can be changed as appropriate, such as adopting a recess.

  Further, the hole shapes of the plurality of hole portions 41d, 41e, 42d, 43d, 44d, and 44e, the orientation of the ridge lines RL of the mountain portions 41f and 44f, and the like can be appropriately changed, and the plurality of fixed contact members 40 are also vertical. It is not restricted to what is provided with plates 41b-44b. Further, the vertical plates 41b to 44b are not limited to those perpendicular to the flat plates 41a to 44a, but may be plate members that intersect with the rotation axis A, such as those standing up to 80 degrees. .

  Moreover, in the said embodiment, although the 1st leg part 22a and the 2nd leg part 22b are continuing via the point B, it is not restricted to this, Between the 1st leg part 22a and the 2nd leg part 22b The 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: Abutment rib 33b: Arc Member 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: Mountain portion 50: Housing G: Guide groove A: Rotation axis RL: Ridge line S: Switch movement space

Claims (2)

Seesaw switch knob that can be swung around the rotation axis,
A conductive movable contact member that is held with respect to the seesaw switch knob and is operable in a rotation direction around the rotation axis in accordance with a swinging operation of the seesaw switch knob;
A plurality of fixed contact members provided corresponding to respective operation positions of the movable contact member that operates in the rotational direction,
The movable contact member has a base portion fixed to the seesaw switch knob, and a leg portion that extends from the base portion in the extending direction of the rotation shaft.
The plurality of fixed contact members are arranged to face each other with a switch moving space serving as a space for elastically deforming and arranging the leg portion extending in the fork.
The leg portion extends from the base portion so as to be bifurcated from the base portion, and extends from the first leg portion while being bent inward from the extending direction of the first leg portion, and the fixed contact A seesaw-type switch device comprising: a second leg portion that contacts the member. The second leg portion includes a spherical portion having a substantially hemispherical surface protruding outward in the extending direction of the rotating shaft,
The plurality of fixed contact members have a plurality of holes into which the substantially hemispherical surfaces of the spheres are fitted at the respective operation positions of the movable contact member,
The seesaw type switch device, wherein the plurality of holes are arranged concentrically with respect to the rotation shaft.

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