JPH01173526A - Seesaw type switch - Google Patents

Abstract

PURPOSE:To give good operation feeling to an operator and improve the operability by forming a ball receiving recess with a center recess formed with a diameter smaller than the diameter of a ball and an outer periphery recess continuously provided on the outer periphery so that the center recess faces the ball when an operation button is at the neutral position and the outer periphery recess faces the ball when it is rotated from the neutral position. CONSTITUTION:When one side of an operation section 39 is depressed from the direction side shown by the arrow C, an operation button 26 is rotated clockwise using an axis 74 as a fulcrum. An axis section 40 is integrally rotated at this time and displaced from a ball 30, thus a center recess 45 escapes from the ball 30, then an outer periphery recess 44 is arranged to face the ball 30. The operation feeling is given to the finger of an operator by a step between the center recess 45 and the outer periphery recess 44 during this movement, a movable piece 59 is pushed down by a control projection 42 at the same time. Whether the operation has been performed or not is confirmed by the feeling, thereby the operability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a seesaw-type switch used, for example, to control the raising and lowering of a windshield of an automobile.

(Prior Art) Fig. 5 shows an example of a conventional seesaw type switch, and this switch 1 is composed of an operation button 2, a base 3, a leaf spring 4, a ball 5, a ball receiving member 6, etc. and the operation button 2 is rotated about the pivot 23 as a fulcrum. When one side of the operating button 2 is pushed in the direction indicated by arrow E in FIG. 5, the operating button 2 is rotated clockwise. At the same time, the i, lJ III protrusion 10 integrally formed on the lower surface of the operation button 2 allows
The movable piece 16 formed by bending both ends of the electric leaf spring 4 outward is pushed down, and the movable contact member 17 attached to the movable piece 16 on the pushed down side comes into contact with the fixed contact 22. A conductive state is formed. When the push-down blade is removed again, the operating button 2 is pushed back counterclockwise by the self-elastic restoring force of the movable piece 16 and returns to the neutral position again, and as a result, the movable contact member 17
and fixed contact 22 are separated and become non-conductive. Conversely, when the operating button 2 is pressed from the opposite side in the direction indicated by the arrow F in FIG. The movable contact piece 16 on the opposite side is pushed down, and the movable contact member 17 on the pushed down side is brought into contact with the fixed contact 22. When the pressing blade is removed again, the operating button 2 is pushed back clockwise by the self-elastic restoring force of the movable contact piece 16 and returned to the neutral position, thereby separating the movable contact member 17 and the fixed contact 22. becomes non-conductive.

Therefore, in this seesaw type switch 1, when the operation button 2 is pressed in the direction of the arrow E or F, the movable piece 16 on the pressed side is pushed downward by the control protrusion 10 and is bent. Due to the bending, the movable contact member 17 comes into contact with the fixed contact 22, and the contact is switched.

(Problems to be Solved by the Invention) As described above, in the conventional seesaw type switch 1, when the operation button 2 is pressed in the direction of the arrow E or F, the switch is placed corresponding to the pressed side. The movable piece 16 is pushed by the control protrusion 10 and deflects downward, and this deflection brings the movable contact member 17 into contact with the fixed contact 22, thereby switching the contact.

The operation button 2 is rotated using the pivot @23 as a fulcrum, and in order to eliminate play during this rotation, a ball receiving recess 11 is provided on the lower surface of the pivot 8. 5 is pressed into contact with a coil spring 21. This ball receiving recess 11 is simply formed in a forest shape with the depth increasing toward the center, and the pivot portion 8 of the ball 5 is also rotated by rotation of the operation button 2. The ball is simply stored and arranged in a state where it slides within the ball socket 11, and is not structured so that the feel changes depending on the rotation of the pivot portion 8, that is, the rotation of the operating button 2.

Therefore, when the operation button 2 is rotated, the same feeling is always given to the operator's finger. Therefore, it is necessary to check the display section to determine whether or not the operation button 2 has been operated reliably, resulting in problems such as poor operability.

The present invention has been made in view of the above-mentioned problems, and its purpose is to provide a seesaw-type switch having a structure that gives the operator a good operating feel, enables reliable operation, and improves operability. Our goal is to provide the following.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a system in which a ball and a pivot portion having a ball receiving recess on the lower surface that is inclined toward the center and receives the ball are located under an operating portion. an operation button that protrudes from the side and is rotatably supported by the base at the middle of the pivot portion, and is rotated from side to side about this support portion; one end is attached to the base side and the other end is attached to the ball; a spring that presses and holds the ball in the ball receiving recess;
A movable piece is provided at both ends of the movable piece, which is disposed within a rotational region of the operation button, and is pushed down by rotation of the operation button, and urges the operation button to a neutral position, and a movable contact member is attached to the movable piece. a conductive leaf spring; and a fixed contact that is abutted by the pressed down movable contact member,
A seesaw-type switch in which the ball receiving recess is displaced relative to the ball by rotation of the operation button, wherein the ball receiving recess includes a central recess formed with a diameter smaller than the diameter of the ball; an outer periphery recess provided continuously on the outer periphery of the central recess, and when the operating button is in the neutral position, the central recess corresponds to the ball, and when rotated from the neutral position, the outer periphery It is structured so that four parts correspond to each other.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIGS. 1 to 4 show the main structure of a seesaw type switch according to an embodiment of the present invention.

In FIGS. 1 to 4, the switch 25 includes an operation button 26, a base 27, a contact board 28, a leaf spring 29, a ball 30, a ball receiving member 31, and movable contact members 33, 34, 3.
5.36, a coil spring 37, an auxiliary coil spring 38, etc.

The operation button 26 is formed of three operation parts and a pivot part 40, each of which is separately molded from a resin material. The operating portion 39 is provided with an engagement recess 41 at the center of its lower surface, and control protrusions 42 are provided at positions facing each other with the engagement recess 41 in between. on the other hand,
The pivot portion 40 is formed into a rod shape, and is attached such that one end thereof is fitted into the engagement recess 41 and protrudes from the lower surface of the three operating portions. Four ball receivers 43 are provided on the lower surface of the hanging pivot portion 40. This ball receiving recess 43 is located between an outer circumferential recess 44 formed so that the depth increases toward the center and an outer circumferential recess 44 that is cut deeper from the center of the outer circumferential recess 44. It is formed with a central recess 45 with a step provided therein. The diameter of the center recess 45 is approximately one quarter of the diameter of the ball 30, and the diameter of the outer peripheral recess 44 is slightly larger than the diameter of the ball 30. Further, the maximum depth of the outer circumferential recess 44 is smaller than the diameter of the ball 30. Furthermore, an elongated hole 46 is provided in the middle portion of the pivot portion 40 so as to pass through the side surface of the pivot portion 40 .

The base 27 is molded from a resin material. A rectangular recess 47 is integrally provided corresponding to the position where the operation button 26 is attached, and a through hole 48 is further provided in the lower surface of this recess 47. Note that this recess 47
The size of the pivot portion 40 is formed to be large enough to receive the pivot portion 40. In addition, the base 27 has a recess 47.
The support pieces 4 are respectively protruded upward along both side edges of the support pieces 4.
9 are integrally molded, and each support piece 49 is provided with a through hole 50 corresponding to the elongated hole 46. Furthermore, the cylindrical parts 52.
53, 54, and 55 are integrally provided, and holes 51 penetrating vertically are formed in the cylindrical portions 52, 53, 54, and 55, respectively.

The leaf spring 29 is made of an elastic metal plate. The intermediate portion 56 of this leaf spring 29 is
is inserted into the recess 47 of the base 27, this recess 4
It is bent into a substantially U-shape along the inner wall surface of 7. Further, an intermediate portion 56 protruding from the upper part of the recess 47
, each tip portion is further bent outward at a substantially right angle.

This outwardly bent portion is separated into two by a groove 58 which is cut from the tip end toward the intermediate portion 56 and into the area of the intermediate portion 56 . Also, due to this separation, the movable piece 59.6 is attached to one tip side.
0, and movable pieces 61 and 62 are formed on the other end side, respectively. Further, each movable piece 59, 60, 61, 62 is provided with a sliding splitter 63 that is cut halfway from the tip toward the intermediate portion 56 side, and an inner end portion of the sliding splitter 63 is provided. Niko slot groove 63
A large diameter hole 64 (
(see Figure 1) are provided continuously. Each of the movable pieces 59, 60, 61.62 has a plunger function and is attached with movable contact members 33.34, 35.36, respectively.

Each movable contact member 33, 34, 35, 36 has a movable contact portion 33A, 34A, 35A at one end.

36A is integrally formed, and this movable contact portion 3
Flange-shaped washers 32 are fixed to the immediate upper outer peripheral surfaces of 3A, 34Δ, 35Δ, and 36A, respectively.

In addition, on the upper part of the movable contact member 33, 34, 35, 36,
Through holes 67 are provided across the side surfaces of the movable contact members 33, 34, 35, and 36, respectively. Then, the movable contact members 33, 34, 35° 36 are attached to the fixed contacts 70, 71, 7.
Auxiliary coil springs 38 constituting spring means biasing toward the 2.73 side are respectively attached. This auxiliary coil spring 38 has a washer 32 and a through hole 67.
each movable contact member 33, with its lower end positioned in contact with the washer 32.
34, 35, and 36, and then the upper end side is pressed downward and compressed, and the through hole 6
The upper end side is locked by a locking pin 68 which is press-fitted and locked in 7.

In this way, each movable contact member 33, 34, 35° 36
Each auxiliary coil spring 38 attached to the auxiliary coil spring 38 is treated as a unitary part together with each movable contact member 33, 34, 35, 36. Each movable contact member 33 is unitized with an auxiliary coil spring.
．． 34, 35.36 are movable pieces 59.60.61.62
is inserted into the large diameter hole 64 from the sliding groove 63 while being sandwiched between the locking pin 68 and the auxiliary coil spring 38, and has a plunger function to be slid within the large diameter hole 64. ing. Also, each movable contact member 33, 34, 35, 36 installed in the large diameter hole 64 is moved by the biasing force of the auxiliary coil spring 38 to move the movable pieces 59, 60,
61 and 62 are normally held in a biased state. When an external force is applied from below to the movable contact members 33, 34, 35, 36 to overcome the biasing force of the auxiliary coil spring 38, the movable contact members 33, 34, 35, 36 to which the external force is applied.
34, 35.36 are the only movable pieces 59.60°61.62
The movable contact member 59, 60, 6 is slid upward and is retracted, and this retraction causes the movable contact member 59, 60, 6 to be removed due to excessive rotation of the operating button 26, etc.
A large external force applied to 1.62 is absorbed. Further, among the movable contact members 33, 34, 35, 36, the length of the movable contact portion 34A protruding from the washer 32 of the movable contact member 34 is the same as that of the washer 32 of the other movable contact member 33, 35, 36. Projected movable contact portions 33A, 35A, 3
It is formed to be longer than the length dimension of 6 by an amount of X (see FIG. 2). With the movable contact members 33, 34, 35° 36 attached to the movable pieces 59, 60, 61, 62, respectively, only the movable contact portion 34A is protruded downward by a distance X. Further, a through hole 65 corresponding to the n-through hole 48 of the recess 47 is provided at the center of the bottom surface of the intermediate portion 56 of the leaf spring 29 .

The ball receiving member 31 is formed of a resin material in the shape of a bottomed cylinder with one end bent, and a flange-like portion 66 is integrally provided on the periphery of the no end side. The ball receiving member 31 passes negatively through the through hole 65 of the leaf spring 29 and the negative through hole 48 of the recess 47, and is received until the brim portion 66 collides with the periphery of the through hole 65 and is regulated. is fixed in the four parts 47 in a state facing upward. In addition, this ball receiving member 3
A coil spring 37, which is used in a compressed state, is housed inside the coil spring 1, and a ball 30 is placed on one end of the coil spring 37, with the ball 30 protruding from the opening.

Then, the ball receiving member 31 is passed through the through hole 65 of the leaf spring 29 and the through hole 48 of the recess 47, and is installed in the recess 47 until the brim 66 collides with the periphery of the through hole 65 and is regulated. At this time, the leaf spring 29 is also installed in the recess 47 while being held between the brim portion 66 and the bottom surface of the recess 47 .

Further, in this state, each movable contact piece 59, 60, 61°62 extends in opposite directions along the surface of the base 27, and each large diameter hole 64 of each movable piece 59, 60, 61.62 This corresponds to the upper part of the cylindrical parts 52.53 and 54.55. The movable contact members 33.34.35.36 attached to each movable piece 59.60, 61.62 are connected to the corresponding cylindrical portion 52.53.54.55.
The movable contact portions 33A, 34A, 35A, and 36A are projected toward the contact substrate 28 side through the movable contact portions 33A, 34A, 35A, and 36A.

The contact board 28 is molded from a resin material, and has a printed wiring circuit (not shown) formed on its surface. Further, a through hole 69 through which the ball receiving member 31 escapes is provided at a position corresponding to the n-through hole 48, and a fixed contact 70 connected to the printed wiring circuit is provided at a position corresponding to the cylindrical portions 52, 53, 54, 55.
, 71.72°73 are provided, respectively. The fixed contact 71 corresponding to the movable contact portion 34A is formed by the fixed contact 71A and the fixed contact 71B, and the fixed contact 73 corresponding to the movable contact portion 36A is formed by the fixed contact 71A and the fixed contact 71B.
3A and a fixed contact 73B.

The operation button 26 is attached to the base 27 with the leaf spring 29 and the ball receiving member 31 integrated into the base 27, and with the auxiliary coil spring 38 attached to each of the movable contact members 33 which are made into a unit. .34,3
5.36 is attached to each movable piece 59.60.61.62, when the movable contact members 3.34, 35.36 are respectively inserted into the cylindrical part 52.53.54.55. , when the pivot portion 40 is inserted into the recess 47, the center recess 45 of the pivot portion 40 is inserted into the coil spring 37.
It abuts against a ball 30 supported at one end. Also,
When the operation button 26 is pushed downward with a portion of the ball 30 received in the center recess 45, the coil spring 37 is compressed and a portion of the ball 30 is stored in the ball receiving member 31. , and further support piece 490 through hole 5
0 and the elongated hole 46 of the pivot portion 40 correspond to each other.

In this state, the pivot 74 is inserted from the through hole 50 side of one support piece 49 through the elongated hole 46 of the pivot part 40 to the different through hole 50 of the other support piece 49, and When the side protruding portion is fixed to the support piece 49,
The operation button 26 is attached so as to be rotatable in left and right directions about a pivot 74 as a fulcrum.

Further, in this state, the ball 30 is pressed into the center recess 45 by the biasing force of the coil spring 37, and the operating button 26 is also biased upward to suppress the play of the operating button 26. Furthermore, each control protrusion 42 provided on the lower surface of the operating part 39 is brought into contact with the tip end portion of each movable piece 59, 60, 61, 62, and the movable piece 5 that is in contact with it
9, 60, 61, 62 operating button 26 by elastic force
is maintained in a straight neutral position as shown in FIG. As a result, each movable contact member 33,
34.35.36 also each fixed contact 70°71.72.73
being kept away from.

The seesaw type switch 25 configured in this way is
The operating button 26 can be rotated in the left-right direction using the pivot 74 as a fulcrum, and when one side of the operating section 39 is pushed from the direction shown by arrow C in FIG. Rotated clockwise. At this time, the pivot portion 40 is also rotated together and displaced with respect to the ball 30, so that the center recess 45 is released from the ball 30 due to this displacement, and the outer circumferential recess 44 is disposed corresponding to the ball 30 in a clockwise direction. is rotated to As shown in this state in FIG. 3, the center recess 45 is released from the ball 30, and then the outer peripheral recess 44 is disposed correspondingly to the ball 30. Further, during this movement, the difference in level between the center recess 45 and the outer peripheral recess 44 gives an operational feel to the operator's fingers, and at the same time, the movable pieces 59 and 60 are pushed down by the control protrusion 42. At this time, the movable contact portion 34A of the movable contact member 34 protrudes downward by a distance X by a larger amount than the movable contact portion 33A of the movable contact member 33, so the movable contact portion 34A first contacts the fixed contact 71, The fixed contact 71A and the fixed contact 71B are brought into conduction via the movable contact portion 34A. This state is also shown in FIG. Further, when the operation button 26 is further moved clockwise from this state, the inner edge 44A of the outer peripheral recess 44 collides with the ball 30 as shown in FIG. 4, and the operation button 26 cannot be rotated any further. The rotating contact portion 33
A is brought into contact with the fixed contact 70.

Then, the fixed contacts 71A, 71B, and 70 are brought into conduction via the fixed contact members 33 and 34 and the leaf spring 29. That is, in this operation, a time difference is created between the connection of the fixed contacts 71A and 71B and the fixed contact 70 that is also connected to the fixed contacts 71A and 71B by changing the length dimensions of the fixed contact parts 33A and 34A. has been done. As a result, when the side of the operation button 26 indicated by arrow C is pressed, the external circuit (not shown) connected to the fixed contacts 71A and 71B is first turned on, and then the external circuit (not shown) connected to the fixed contact 70 is turned on. ) can be used in such a manner that there is a time difference in the control between each circuit, so that the circuits are conductive.

When the operation button 26 moves downward until the movable contact member 33 contacts the fixed contact 70, the excessive displacement force applied to the movable contact member 37 is caused by the bending deformation of the movable piece 60 and the attachment of the auxiliary coil spring 38. The force is absorbed by the movable contact member 34 sliding against the movable piece 60 against the force, thereby reducing mechanical fatigue of the movable piece 60. Also, on the movable contact member 33 side, when an extra downward rotational force is applied after the movable contact member 33 contacts the fixed contact 70, the sliding of the movable contact member 33 against the movable piece 59 similarly occurs. The movable piece 59 absorbs excess displacement force, thereby reducing mechanical fatigue of the movable piece 59.

Further, when the push-down blade from the direction of arrow C is removed from the operating button 26, the operating button 26 is pushed back counterclockwise by the self-elastic restoring force of the movable pieces 59, 60. At this time, each movable contact member 33.34 is connected to each fixed contact 70.71A.
, the order of leaving 71B is the reverse of when it was pushed down,
First, the movable contact member 33 and the fixed contact 70 are separated, and then the movable contact member 34 and the fixed contact 71 are separated.

When the operation button 26 is rotated counterclockwise in FIG.
is displaced in the corresponding direction. Further, just before the operation button 26 is rotated by a predetermined amount and returned to the neutral position, the center recess 45 corresponds to the ball 30. Then, the ball 30 is brought down into the center recess 45 again, and the operation button 26 returns to the state shown in FIG. 2.

Furthermore, when the ball 30 falls into the central recess 45, this feeling is transmitted to the operator's fingers, allowing the operator to feel the operation button 26.

Next, when the operation button 26 is pressed on one side of the operation section 39 from the direction of the arrow in FIG.
4 as a fulcrum and rotated counterclockwise. At this time, the pivot portion 40 is also rotated together and displaced with respect to the ball 30, so that the center recess 45 is released from the ball 30 due to this displacement, and the outer peripheral recess 44 is rotated counterclockwise so that it is disposed corresponding to the ball 30. rotated in the direction. Then, the center recess 45 is released from the ball 30, and the outer peripheral recess 44 is released from the ball 30.
When the movable pieces 61 and 62 are positioned correspondingly, the step between the center recess 45 and the outer circumferential recess 44 gives an operational feel to the operator's fingers, and at the same time, the movable pieces 61 and 62 are pushed down by the control protrusion 42. Then, the movable contact member 35 and the movable contact member 36 move to the movable piece 61.6.
It is displaced downward together with 2. And movable contact part 35A
contacts the fixed contact 73, and the fixed contact 73A and the fixed contact 7
At the same time, the movable contact part 35A abuts the fixed contact 72 to connect the fixed contact 73A, the fixed contact 73B, and the fixed contact 72 to each other.
are brought into conduction with each other.

At the same time, the inner surface 44A of the outer peripheral recess 44 collides with the ball 30, and the operating button 26 cannot be rotated any further.

If the movable contact member 35 and the movable contact member 36 are moved further downward after coming into contact with the fixed contact 72.73, the movable piece 61.62 will be bent and the auxiliary coil spring 38 will be attached. The excessive displacement force is absorbed by the displacement of the movable contact member 35 sliding against the movable piece 61 against the force and the displacement of the movable contact member 36 sliding against the movable piece 62, thereby causing the movable piece 61. 62 to reduce mechanical fatigue.

Further, when the push-down blade on the arrow direction side of the operation button 26 is removed, the operation button 26 is pushed back clockwise by the self-elastic restoring force of the movable pieces 61, 62, and at the same time, each movable contact member 35, 36 is moved to each fixed position. It is separated from the contacts 72, 73A, 73B.

When the operation button 26 is rotated clockwise in FIG. is displaced in the direction of Also, just before the operation button 26 is rotated by a predetermined amount and returned to the neutral position, the center recess 45 is arranged correspondingly to the ball 30, so that the ball 30 falls into the center recess 45 again, and the operation button 26 is moved to the position shown in FIG. Returns to the state shown. Further, when the ball 30 falls into the central recess 45, this feeling is transmitted to the operator's fingers, giving the operator the feeling of operating the operating button 26.

Therefore, this seesaw-shaped switch 1 can be operated from the operation button 26 from the direction of arrow C or from the direction of arrow D in FIG.
When alternatively pressed, the movable piece 59. on the pressed side moves.
60 or the movable pieces 61 and 62 are pushed downward by the control protrusion 42 and flex, and at the same time, this flexure causes the movable contact member 3 to
3.34 or movable contact member 35.36 is displaced downward and comes into contact with fixed contact 70.71 or fixed contact 72.73, thereby switching the contact.

When the operation button 26 is pressed from the direction of arrow C, the timing at which the movable contact member 34 contacts and separates from the fixed contact 71 and the timing at which the movable contact member 33 contacts and separates from the fixed contact 70 are determined by the movable contact portion 34A. Since a time difference is provided by changing the length of the movable contact portion 33A, the switch 25 itself can perform sequence control of the external circuit. Therefore, by using this switch 25, it is also possible to simplify the configuration of the external circuit. In this embodiment, the length dimension of the movable contact part 33A and the movable contact part 34A are changed as a means to provide a time difference, but the length dimension of the entire movable contact member 34 is the same as that of the entire movable contact member 33. Alternatively, the length of the fixed contact 71 and the height of the fixed contact 72 may be changed to provide a time difference.

Furthermore, if the operating button 26 is further rotated and pressed down while each movable contact member 33, 34, 35, 36 is in contact with the fixed contact 70, 71, 72, 73, the excess pressing period is Movable piece 59.60.61.
62 and the biasing force of the auxiliary coil spring 38, the movable contact members 33, 34, 35, 36 are moved by the movable pieces 59.
The absorption is done by sliding it at an angle of 60°61.62. Therefore, the movable pieces 59, 60.6
1.62, etc., the mechanical fatigue of the movable pieces 59, 60, 61, and 62 is reduced, and their lifespan is improved.

In addition, the ball receiving recess 43 for receiving the ball 30 is connected to the outer peripheral recess 4.
4 and a center recess 45, and when the operation button 26 is rotated, the center recess 45 and the outer peripheral recess 44 are formed with respect to the ball 30.
moves, giving the operator a click feeling when switching between the central recess 45 and the outer circumferential recess 44.

This allows tactile confirmation of whether or not an operation has been performed, improving operability.

(Effects of the Invention) As explained above, according to the seesaw type switch according to the present invention, the ball receiving recess for receiving the ball that guides the rotation of the operation button is formed by the center recess and the four outer peripheries, and the operation When the button is rotated, the center recess and the outer circumferential recess are moved integrally with the pivot part relative to the ball, so that a click feeling is given to the operator when switching between the four center parts and the outer circumferential recess. Therefore, it is possible to confirm by touch whether or not an operation has been performed, thereby improving operability.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of essential parts of a seesaw-type switch according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1 with the push button not pressed. Figure 3 shows A in Figure 1 with the push button partially pressed down.
- A cross-sectional view taken along line A; Figure 4 is a cross-sectional view taken along line A-A in Figure 1 with the push button fully pressed down;
The figure is a sectional view showing an example of a conventional seesaw type switch. 25...Switch, 26...Operation button, 27...
・Base, 28... Contact board, 29... Leaf spring, 3
0...Ball, 33.34.35.36...Movable contact member, 37...Coil spring, 38...Auxiliary coil spring, 39...Operation unit, 40...Pivot part, 42 ...Control protrusion, 43...Ball receiving recess, 4
4... Outer circumference recess, 45... Center recess, 59, 60,
61.62...Movable piece, 70.71.72.73...
・Fixed contact, 74... Pivot.

Claims (1)

[Claims] A ball and a pivot part having a ball receiving recess on the lower surface that is inclined toward the center and receives the ball protrude from the lower side of the operation part, and the middle of the pivot part is rotatably supported on the base. an operation button which is rotated left and right about this support part as a fulcrum, a spring whose one end is attached to the base side and whose other end pushes the ball and holds it in the ball receiving recess, and a rotation area of the operation button. a conductive plate spring having a movable piece at both ends disposed within the movable piece and pushed down by the rotation of the operating button and biasing the operating button to a neutral position, and a movable contact member attached to the movable piece; A seesaw-type switch comprising a fixed contact abutted by the depressed movable contact member, and wherein the ball receiving recess is displaced relative to the ball by rotation of the operation button, wherein the ball receiving recess is , a center recess formed with a diameter smaller than the diameter of the ball, and an outer peripheral recess provided continuously on the outer periphery of the center recess, and when the operation button is in the neutral position, the center recess is A seesaw type switch, characterized in that when the ball is rotated from the neutral position, the outer circumferential recess corresponds to the ball.