JP2015050049A - Push switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a push switch for preventing any abnormal noise from being generated in vibration, and for improving a feeling in operation.SOLUTION: A push switch 100 includes: a casing 1; an operation body 2; an elastic member 3; a contact member 4; and a tilt prevention lever 5 having a first shaft part 5a and a second shaft part 5b. The operation body 2 has a first support part 2a for supporting the first shaft part 5a rotatably or movably in a first horizontal direction, and the casing 1 has a second support part 1a for supporting the second shaft part 5b rotatably or movably in the first horizontal direction. The second support part 1a supports the second shaft 5b movably in the first horizontal direction when the first shaft part 5a is rotatably supported by the first support part 2a, and rotatably supports the second shaft part 5b when the first shaft part 5a is supported movably in the first horizontal direction by the first support part 2a. A plurality of second support parts 1a are disposed, and a rattle prevention member 6 is press-fit into the second shaft part 5b at a central part between the second support parts 1a.

Description

  The present invention relates to a push switch, and more particularly to a push switch that does not generate abnormal noise during vibration and has a good feeling during operation.

  In a push switch provided with a key top, there is a push switch provided with a tilt prevention mechanism in order to prevent the key top from tilting during operation. As such a push switch, a push switch described in Patent Document 1 below is known.

  Hereinafter, the push switch described in Patent Document 1 will be described with reference to FIG. FIG. 9 is a side view showing the configuration of the push switch 900 described in Patent Document 1. In FIG.

  The push switch 900 described in Patent Document 1 is a wire rod for preventing the key top 911 from tilting in the longitudinal direction between the key top 911 provided with the lever support portion 912 and the fixing member 903 provided with the lever guide portion 904. This is a push switch used in a keyboard that is formed as a lever 915 with a lever interposed therebetween, the lever 915 being rotatably supported by a lever support portion 912 and slidably held by a lever guide portion 904. The lever 915 serves as a tilt prevention mechanism, and prevents tilt when the key top 911 is operated.

Japanese Utility Model Publication No. 3-37723

  However, the tilt prevention mechanism by the lever 915 of the push switch 900 is such that the lever 915 is rotatably supported by the lever support portion 912 and is slidably held by the lever guide portion 904. The support portion 912 and the lever guide portion 904 are attached with play. For this reason, when a push switch having a tilt prevention mechanism for the push switch 900 is used in a place where there is vibration, the lever 915 vibrates and generates noise due to collision with other components. In this way, push switches that generate abnormal noise are easily avoided. Further, if the play between the lever 915 and the lever guide portion 904 is eliminated to eliminate the rattling of the lever 915, there is a concern that the feeling during operation is deteriorated.

  The present invention solves the above-described problems, and provides a push switch that does not generate abnormal noise during vibration and has a good feeling during operation.

  In the push switch according to claim 1, the housing, the operation body that can be moved up and down, the elastic member that urges the operation body upward, and the contact and separation electrically as the operation body moves up and down. An inclination preventing member having a contact member, a first shaft portion formed in a substantially C shape and having both ends opposed to each other on the same straight line, and a second shaft portion formed in parallel to the first shaft portion. A lever, wherein the first horizontal direction is a horizontal direction perpendicular to a direction in which the second shaft portion extends, and the operating body can turn the first shaft portion or the first shaft portion. 1 has a first support part that is movably supported in the horizontal direction, and the housing has a second support part that supports the second shaft part so as to be rotatable or movable in the first horizontal direction. The second support portion is configured such that when the first support portion rotatably supports the first shaft portion, the second shaft portion is A push switch that supports the second shaft portion so that the second shaft portion can be pivotally supported when the first support portion supports the first shaft portion so as to be movable in the first horizontal direction. In addition, a backlash prevention member that press-contacts the second shaft portion, the housing has a plurality of the second support portions arranged at a predetermined interval, and in the central portion between the second support portions, The backlash preventing member is in pressure contact with the second shaft portion.

  The push switch according to claim 2 is characterized in that the second shaft portion of the tilt prevention lever is curved in an elastic deformation range by pressure contact with the backlash prevention member.

  The push switch according to claim 3 is characterized in that the tilt prevention lever is made of a metal wire.

  According to the first aspect of the present invention, since the second shaft portion of the tilt prevention lever is supported in a state of being pressed against the backlash prevention member, the tilt prevention lever is extended in the direction in which the second shaft portion extends. When a sliding force is applied, a sliding load is generated on the pressure contact surface between the backlash preventing member and the second shaft portion. Therefore, when the vibration is generated, the movement of the tilt prevention lever in the direction in which the second shaft portion is extended can be restricted, and the generation of abnormal noise can be suppressed. Further, the backlash preventing member does not hinder the movement of the tilt prevention lever accompanying the vertical movement of the operating body. Therefore, there is an effect that it is possible to provide a push switch that does not generate abnormal noise during vibration and has a good feeling during operation.

  According to the second aspect of the present invention, when the force that slides the tilt prevention lever in the direction in which the second shaft portion is extended is exerted when the second shaft portion is bent in pressure contact with the backlash preventing member, the tilt is applied. The movement of the prevention lever in the direction in which the second shaft portion is extended can be more reliably restricted, and the generation of abnormal noise can be further suppressed. Further, since the bending of the second shaft portion of the tilt preventing lever is in an elastically deformed state, the bending direction can be changed following the swinging motion of the tilt preventing lever when the operating body moves up and down, so that stable operation is possible. A feeling can be obtained. Therefore, there is an effect that it is possible to provide a push switch that does not generate abnormal noise during vibration and has a good feeling during operation.

  According to the invention of claim 3, by forming the tilt prevention lever with the metal wire material, it is possible to provide the desired strength and make it difficult to break, even if the tilt prevention lever is made thinner, as compared with the case where the tilt prevention lever is formed. be able to. Therefore, there is an effect that it is possible to provide a push switch that is smaller and does not generate abnormal noise during vibration and has a good feeling during operation.

  As described above, according to the present invention, it is possible to provide a push switch that does not generate abnormal noise during vibration and has a good feeling during operation.

It is a perspective view which shows the external appearance of the push switch 100 in 1st Embodiment. It is a disassembled perspective view which shows the structure of the push switch 100 in 1st Embodiment. It is a figure which shows the housing | casing 1 in 1st Embodiment. It is a figure which shows the operation body 2 in 1st Embodiment. It is a schematic cross section which shows the switch unit 30 in 1st Embodiment. It is a schematic cross section which shows the structure of the push switch 100 in 1st Embodiment. It is a figure which shows the engagement state of the 1st support part 2a and 2nd support part 1a, and the inclination prevention lever 5 in 1st Embodiment. It is a figure which shows the 2nd axial part 5b which pressed and curved to the rattle prevention member 6 in 1st Embodiment. It is a side view which shows the structure of the push switch 900 of patent document 1. FIG.

[First Embodiment]
The push switch 100 in the first embodiment will be described below.

  First, the configuration of the push switch 100 according to the present embodiment will be described with reference to FIGS. FIG. 1 is a perspective view showing an appearance of a push switch 100 according to the first embodiment. FIG. 2 is an exploded perspective view showing the configuration of the push switch 100 in the first embodiment. FIG. 3 is a view showing the housing 1 in the first embodiment, FIG. 3A is a perspective view showing the appearance of the housing 1, and FIG. 3B is the X1 direction side shown in FIG. It is a schematic diagram which shows the external appearance of the housing | casing 1 of the state seen from. FIG. 4 is a view showing the operating body 2 in the first embodiment, FIG. 4 (a) is a perspective view showing the appearance of the operating body 2, and FIG. 4 (b) is an X1 direction shown in FIG. 4 (a). FIG. 4C is a front view showing the operating body 2 in a state viewed from the side, and FIG. 4C is a side view showing the operating body 2 in a state viewed from the Y2 direction side shown in FIG. FIG. 5 is a schematic cross-sectional view showing the switch unit 30 in the first embodiment, FIG. 5 (a) is a schematic cross-sectional view showing the switch unit 30 before the pressing operation, and FIG. 5 (b) is a view after the pressing operation. 3 is a schematic cross-sectional view showing a switch unit 30. FIG.

  As shown in FIG. 1, the push switch can perform an input operation by pressing an operating body 2 protruding outward from the housing 1. As shown in FIG. 2, the housing 1 and the tilt prevention lever can be operated. 5, a backlash prevention member 6, a wiring board 7, and a switch unit 30.

  The tilt prevention lever 5 is made of a metal wire having a circular cross section, and is formed in a substantially C shape, as shown in FIG. 2, and has a first shaft portion 5a and a first shaft that are arranged opposite to each other on the same straight line. And a second shaft portion 5b formed in parallel with the portion 5a. In the present embodiment, two tilt prevention levers 5 are used.

  The casing 1 is made of a synthetic resin material, and as shown in FIG. 3, the vertical direction (Z1-Z2 direction) is open and the opening is formed in a substantially rectangular cylindrical shape. The casing 1 has a second support portion 1a on a longitudinal surface (surface in the X1-X2 direction) 1b, and a plurality of the second support portions 1a are arranged at a predetermined interval. In the present embodiment, one second support portion 1a is formed at each end of each longitudinal surface 1b, and the spacing is compatible with the first shaft portion 5a of the anti-tilt lever 5 and has the same height. It is arranged at the position. The second support portion 1a is composed of two guide portions 1c projecting in a direction perpendicular to the longitudinal surface 1b. The guide portions 1c are spaced apart from each other by an interval of approximately the same size as the cross-sectional diameter of the first shaft portion 5a. It is provided side by side in the direction.

  In the present embodiment, the backlash prevention member 6 is formed integrally with the housing 1 and is disposed at the center between the second support portions 1a and protrudes in the direction in which the second support portion 1a protrudes. . The backlash prevention member 6 protrudes in a plate shape having a wide rectangular surface on the Y1-Y2 direction side, and the height of the upper end portion of the backlash prevention member 6 is as shown in FIG. Among the guide portions 1c forming a pair of the two support portions 1a, the position is higher than the arrangement position of the guide portion 1c arranged below.

  The operation body 2 is made of a synthetic resin material and is formed in a rectangular parallelepiped shape as shown in FIG. The operating body 2 has a base portion 2b formed in a rectangular parallelepiped shape, and an extending portion 2c formed in a rectangular parallelepiped shape smaller than the base portion 2b and continuously formed below the base portion 2b. The operating body 2 has a pressing portion 2f that protrudes downward at the center of the lower surface of the extending portion 2c. The extended portion 2 c is formed in a size that can be inserted into the opening of the housing 1. Moreover, the operation body 2 has the 1st support part 2a 2 each at the longitudinal direction side (Y1-Y2 direction side) of the base 2b. The 1st support part 2a is extended in the downward direction (Z2 direction) from the both ends of the width direction (X1-X2 direction) of the surface of a longitudinal direction side. The first support portion 2a is formed with a circular hole portion 2d having the same size as the cross section of the first shaft portion 5a when viewed from the longitudinal direction side. In the first support portion 2a formed on the same longitudinal side surface, as shown in FIG. 4C, a hole is formed on the side of the first support portion 2a where the first support portions 2a do not face each other. The slit part 2e connected to 2d is formed, and the first support part 2a formed below the slit part 2e has elasticity.

  As shown in FIG. 5, the switch unit 30 includes an elastic member 3, a contact member 4, an actuator 8, a cover member 9, and a case member 10.

  The case member 10 is made of a synthetic resin material, is formed in a rectangular parallelepiped shape, and includes a storage portion 10a that is a hollow space whose upper side (Z1 direction side) is open.

  The contact member 4 includes a first fixed contact member 4a, a second fixed contact member 4b, and a movable contact member 4c, and each is formed from a metal plate. The first fixed contact member 4a and the second fixed contact member 4b are formed integrally with the case member 10 and exposed from the inner bottom surface of the storage portion 10a. The first fixed contact member 4a is formed at the center of the inner bottom surface of the storage portion 10a, and the second fixed contact member 4b is formed at two positions facing each other on the outer peripheral side of the inner bottom surface of the storage portion 10a. The first fixed contact member 4a and the second fixed contact member 4b are electrically insulated. The movable contact member 4c is formed in a dome shape with a protruding central portion, is sized to be accommodated in the accommodating portion 10a of the case member 10, and has elasticity. When the central portion of the movable contact member 4c is pressed from the protruding side, it is bent in the pressed direction, and when the pressing is released, the state before pressing is restored. In the present embodiment, the movable contact member 4 c also functions as the elastic member 3.

  The cover member 9 is formed of a metal plate, and has a top plate portion 9a formed to have a size capable of covering the upper portion of the housing portion 10a of the case member 10. The cover member 9 has a circular opening 9b at the center of the top plate 9a, and side walls 9c extending downward at the outer peripheral end of the top plate 9a. Have.

  The actuator 8 is made of a synthetic resin material and is formed in a cylindrical shape. The actuator 8 has an operation portion 8a formed in a columnar shape, and a flange portion 8b formed in a disk shape outwardly along the circumferential surface at one end (end in the Z2 direction) of the operation portion 8a. Have Moreover, it has the protrusion part 8c formed in the end surface of the one side of the operation part 8a so that it might protrude. In addition, the diameter of the operation part 8a is formed in the magnitude | size which can be inserted in the opening part 9b of the cover member 9. FIG.

  As shown in FIG. 5A, the switch unit 30 composed of the components as described above has a movable contact member 4 c disposed inside the housing portion 10 a of the case member 10. The movable contact member 4c is arranged with the center protruding side upward, and the outer peripheral end of the movable contact member 4c is arranged on the second fixed contact member 4b, and the movable contact member 4c and the second fixed contact are arranged. The member 4b is always electrically connected. The movable contact member 4c and the first fixed contact member 4a are not electrically connected when not being operated, but can be electrically connected when the movable contact member 4c bends downward. The actuator 8 is disposed inside the storage portion 10a of the case member 10 so that the protrusion 8c contacts the movable contact member 4c, and is biased upward by the movable contact member 4c. The cover member 9 is arranged so as to cover the upper portion of the case member 10 with the operation portion 8a of the actuator 8 inserted through the opening 9b, and the side wall portion 9c covers the side surface of the case member 10 so as to cover the case member 10. Locked. In this way, the switch unit 30 is formed.

  As shown in FIG. 5B, when the switch 8 presses the actuator 8 downward, the actuator 8 presses the movable contact member 4c downward, the movable contact member 4c bends downward, and the first fixed contact member 4a. To touch. Thus, the first fixed contact member 4a and the second fixed contact member 4b are electrically connected via the movable contact member 4c. When the pressure on the actuator 8 is released, the switch unit 30 returns to the state before the operation, and the electrical connection between the first fixed contact member 4a and the second fixed contact member 4b is released. In this way, switching of the electrical connection between the first fixed contact member 4a and the second fixed contact member 4b, that is, switching of the electrical connection of the contact member 4 can be performed in accordance with the operation of the actuator 8. Function as.

  As shown in FIG. 2, the wiring board 7 is a glass epoxy board formed in a rectangular shape, and is provided with a wiring pattern. The wiring board 7 is formed in a size that can cover the opening on the lower side of the housing 1.

  Next, the structure of the push switch 100 will be described with reference to FIGS. 1 and 6 to 8. 6 is a schematic cross-sectional view showing the structure of the push switch 100 in the first embodiment, FIG. 6 (a) is a schematic cross-sectional view showing the push switch 100 before the pressing operation, and FIG. 6 (b) is a pressing operation. 2 is a schematic cross-sectional view showing a later push switch 100. FIG. In FIG. 6, the tilt prevention lever 5 is not shown, and the switch unit 30 is not shown in cross section. FIG. 7 is a view showing an engagement state of the first support portion 2a and the second support portion 1a with the tilt prevention lever 5 in the first embodiment, and FIG. 7 (a) is the first support portion 2a before the pressing operation. FIG. 7B is a diagram showing an engagement state between the second support portion 1 a and the tilt prevention lever 5, and FIG. 7B shows the first support portion 2 a and the second support portion 1 a after the pressing operation and the tilt prevention lever 5. It is a figure which shows an engagement state, FIG.7 (c) is an enlarged view which expanded the A section shown in FIG.7 (b). FIG. 8 is a view showing the second shaft portion 5b that is pressed against and curved against the backlash preventing member 6 in the first embodiment.

  As shown in FIG. 6, the switch unit 30 is fixed on the wiring board 7 by soldering. The housing 1 is fixed to the wiring board 7 with screws so that the switch unit 30 is accommodated in the opening. The switch unit 30 is disposed at the center position inside the opening. The operating body 2 is held in a state in which the extending portion 2c is inserted into the opening of the housing 1 from above the housing 1 and is movable up and down. Note that the operating body 2 inserted into the opening of the housing 1 has the pressing portion 2f in contact with the actuator 8 of the switch unit 30, and the switch unit 30 can be operated by moving the operating body 2 up and down. . The operating body 2 is biased upward via an actuator 8 by a movable contact member 4c (see FIG. 5) which is an elastic member 3. As shown in FIGS. 1 and 7, the anti-tilt lever 5 has the first shaft portion 5a incorporated in the first support portion 2a and supported so as to be rotatable, and the second shaft portion 5b is incorporated in the second support portion 1a. The second shaft portion 5b is supported so as to be movable in a first horizontal direction DR1 (X1-X2 direction) shown in FIG. 7, which is a horizontal direction perpendicular to the extending direction. Further, the second shaft portion 5b incorporated in the second support portion 1a is in pressure contact with the backlash preventing member 6 at the center portion between the second support portions 1a, and as shown in FIG. Curved in the (Z1 direction). Note that the amount of bending of the second shaft portion 5b is such that the movement of the second shaft portion 5b in the first horizontal direction DR1 is not hindered. The operating body 2 connected to the housing 1 by the tilt prevention lever 5 is held so as to be movable in the vertical direction without falling off the housing 1.

  Next, the operation of the push switch will be described with reference to FIGS.

  When the operating body 2 is pressed downward as shown in FIG. 7B from the state before the pressing operation shown in FIG. 7A, the tilt prevention lever 5 is moved to the first position as shown in FIG. 7C. While rotating around the first shaft portion 5a supported by the support portion 2a, the second shaft portion 5b supported by the second support portion 1a is in the first horizontal direction DR1 (X1 direction in FIG. 7C). ), The operating body 2 moves downward. The operating body 2 moved downward presses the actuator 8 of the switch unit 30 via the pressing portion 2f as shown in FIG. 6, and as shown in FIG. 5, the movable contact member 4c and the first fixed contact member 4a. And the electrical connection state of the contact member 4 is switched. When the pressing operation on the operating body 2 is released, the operating body 2 returns to the state before the operation by the urging force of the movable contact member 4c, which is the elastic member 3, and the electrical connection state of the contact member 4 is also pressed. Return to the state before the operation. In this way, input can be performed by the contact member 4 being electrically connected and separated as the operating body 2 moves up and down.

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

  In the push switch 100 of the present embodiment, the casing 1, the operation body 2 that can be moved up and down, the elastic member 3 that biases the operation body 2 upward, and the electrical connection in accordance with the vertical movement of the operation body 2. A contact member 4 that is separated, a first shaft portion 5a that is formed in a substantially C-shape and has both ends facing each other on the same straight line, and a second shaft portion 5b that is formed in parallel to the first shaft portion 5a. The first horizontal direction DR1 is a horizontal direction that intersects at right angles to the direction in which the second shaft portion 5b extends, and the operating body 2 includes the first shaft portion 5a. The housing 1 has a first support part 2a that supports the second shaft part 5b so as to be rotatable or movable in the first horizontal direction DR1, and the housing 1 supports the second shaft part 5b so as to be rotatable or movable in the first horizontal direction DR1. It has the 2nd support part 1a, and the 2nd support part 1a supports the 1st support part 2a so that rotation of the 1st axial part 5a is possible. In this case, the second shaft portion 5b is supported so as to be movable in the first horizontal direction DR1, and when the first support portion 2a supports the first shaft portion 5a so as to be movable in the first horizontal direction DR1, the second shaft portion 5b is supported. The push switch that rotatably supports the back switch includes a backlash preventing member 6 that press-contacts the second shaft portion 5b, and the housing 1 includes a plurality of second support portions 1a that are arranged at predetermined intervals. The backlash preventing member 6 is in pressure contact with the second shaft portion 5b in the central portion between the support portions 1a.

  As a result, the second shaft portion 5b of the tilt prevention lever 5 is supported in a state of being pressed against the backlash prevention member 6, and the tilt prevention lever 5 is slid in the direction in which the second shaft portion 5b extends. When the force to act is applied, a sliding load is generated on the pressure contact surface between the backlash preventing member 6 and the second shaft portion 5b. Therefore, the movement of the tilt preventing lever 5 in the direction in which the second shaft portion 5b is extended can be restricted when vibration is generated, and the generation of abnormal noise can be suppressed. Further, since the amount of bending of the second shaft portion 5b is such that the movement of the second shaft portion 5b in the first horizontal direction DR1 is not hindered, the backlash preventing member 6 is a tilt prevention lever that accompanies the vertical movement of the operating body 2. The movement of 5 is not disturbed. Therefore, it is possible to provide a push switch that does not generate abnormal noise during vibration and has a good feeling during operation.

  Moreover, in this embodiment, since the backlash prevention member 6 is integrally formed with the housing 1 by injection molding, an effect that it can be handled at a low cost with a simple structure as compared with the case where it is formed as a separate member. Play.

  Further, in the present embodiment, a plurality of second support portions 1 a are arranged at predetermined intervals, and one second support portion 1 a is formed at each end in the longitudinal direction of the housing 1. By making the interval between the second support portions 1a as long as possible and pressing the backlash preventing member 6 and the second shaft portion 5b at the central portion thereof, the operation feeling due to the bending (curving) of the second shaft portion 5b is achieved. Deterioration can be mitigated. Therefore, it is possible to provide a push switch that does not generate abnormal noise during vibration and has a better feeling during operation.

  Further, the push switch 100 according to the present embodiment is configured such that the second shaft portion 5 b of the tilt prevention lever 5 is curved in the elastic deformation range due to the pressure contact with the backlash prevention member 6.

  Thereby, when the force which slides the inclination prevention lever 5 to the direction where the 2nd axial part 5b is extended by the pressure contact member 6 and the 2nd axial part 5b curving, the inclination prevention lever The movement in the direction in which the second shaft portion 5b is extended can be more reliably restricted, and the generation of abnormal noise can be further suppressed. Further, since the bending of the second shaft portion 5b of the tilt preventing lever 5 is in an elastically deformed state, the bending direction can be changed following the swinging operation of the tilt preventing lever 5 when the operating body 2 moves up and down. A stable operation feeling can be obtained. Therefore, there is an effect that it is possible to provide a push switch that does not generate abnormal noise during vibration and has a good feeling during operation.

  In the push switch 100 of the present embodiment, the tilt prevention lever 5 is made of a metal wire.

  Thereby, by forming the tilt preventing lever 5 from a metal wire, it is possible to provide the desired strength and make it difficult to break even if the tilt preventing lever 5 is made thinner than when formed from a rigid resin material. Therefore, there is an effect that it is possible to provide a push switch that is smaller and does not generate abnormal noise during vibration and has a good feeling during operation.

  As described above, the push switch according to the embodiment of the present invention has been specifically described. However, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention. Is possible. For example, the present invention can be modified as follows, and these embodiments also belong to the technical scope of the present invention.

[Modification 1]
In the first embodiment, the tilt prevention lever 5 is supported by the first shaft portion 5a so that it can be rotated by being incorporated in the first support portion 2a, and the second shaft portion 5b is incorporated by the second support portion 1a. The shaft portion 5b is supported so as to be movable in a first horizontal direction DR1 (X1-X2 direction) which is a horizontal direction perpendicular to the extending direction. However, the first shaft portion 5a is incorporated in the first support portion 2a and supported so as to be movable in the first horizontal direction DR1 (X1-X2 direction), and the second shaft portion 5b is incorporated in the second support portion 1a. The biaxial part 5b may be configured to be rotatably supported. Similar effects can be obtained with such a configuration.

[Modification 2]
In the first embodiment, the backlash preventing member 6 is formed integrally with the housing 1, but the backlash preventing member 6 and the housing 1 may be configured as separate parts. Moreover, you may make it the structure which can adjust the attachment height of the rattle prevention member 6 provided as another component. By making it possible to adjust the mounting height of the backlash preventing member 6, it becomes possible to finely adjust the amount of bending of the second shaft portion 5b, and a push switch with a better feeling during operation can be provided.

[Modification 3]
In the first embodiment, the operation body 2 does not have an illumination function, but the operation body 2 may be illuminated as necessary. By providing an illumination function and turning it on, it becomes easier to operate in the dark.

[Modification 4]
In the first embodiment, the tilt prevention lever 5 is provided on both sides of the operation body 2, but a structure provided only on one side may be employed.

DESCRIPTION OF SYMBOLS 1 Housing | casing 1a 2nd support part 1b Longitudinal surface 1c Guide part 2 Operation body 2a 1st support part 2b Base part 2c Extension part 2d Hole part 2e Slit part 2f Press part 3 Elastic member 4 Contact member 4a 1st fixed contact member 4b Second fixed contact member 4c Movable contact member 5 Tilt prevention lever 5a First shaft portion 5b Second shaft portion 6 Backlash prevention member 7 Wiring board 8 Actuator 8a Operation portion 8b Gutter portion 8c Projection portion 9 Cover member 9a Top plate portion 9b Opening Part 9c Side wall part 10 Case member 10a Storage part 30 Switch unit 100 Push switch DR1 First horizontal direction

Claims (3)

A housing,
An operation body that can move up and down;
An elastic member for urging the operating body upward;
A contact member that electrically contacts and separates as the operating body moves up and down;
An anti-tilt lever having a first shaft portion formed in a substantially C shape and having both ends arranged on the same straight line and a second shaft portion formed in parallel to the first shaft portion;
With
The first horizontal direction is a horizontal direction that intersects at right angles to the direction in which the second shaft portion extends,
The operation body includes a first support portion that supports the first shaft portion so as to be rotatable or movable in the first horizontal direction,
The housing includes a second support portion that supports the second shaft portion so as to be rotatable or movable in the first horizontal direction,
The second support portion supports the second shaft portion so as to be movable in the first horizontal direction when the first support portion rotatably supports the first shaft portion, and the first support portion. In the push switch that supports the second shaft portion in a rotatable manner when the first shaft portion is supported so as to be movable in the first horizontal direction,
A backlash preventing member that press-contacts the second shaft portion;
The housing has a plurality of the second support portions arranged at a predetermined interval,
The push switch, wherein the backlash preventing member is in pressure contact with the second shaft portion at a central portion between the second support portions.   2. The multidirectional input device according to claim 1, wherein the second shaft portion of the tilt prevention lever is curved in an elastic deformation range by pressure contact with the backlash prevention member.   The push switch according to claim 1 or 2, wherein the tilt prevention lever is made of a metal wire.