JP2014229365A - Press-button type multistage switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a press-button type two-stage switch that is excellent in switching stability of an on/off state of a switch of two stages, and that prevents breakage of the switch even when a force of further pressing the switch is added after the on/off state of the switch of the final stage is switched.SOLUTION: A press-button type two-stage switch 1 comprises: a rotation body 120; a detector (switch patterns 193, 195, and 197, and a slider 170) in which an on/off state of a switch is switched in two stages depending on a rotation angle of the rotation body 120; and a pressing member 10 installed at an upper part of the rotation body 120 vertically movably. The rotation body 120 is provided with a contact slide surface 133 inclined toward a rotation direction of the rotation body 120. The pressing member 10 is provided with a pressing part 17 rotating the rotation body 120 by sliding while pressing against the contact slide surface 133. A pressing operation of the pressing member 10 is converted into a rotation operation of the rotation body 120, and the on/off state of the switch is switched in two stages depending on the rotation angle of the rotation body 120.

Description

  The present invention relates to a push-type multistage switch.

  As a conventional press-type two-stage switch, for example, as shown in Patent Document 1, when the key top (50) is pressed, first the first press switch (17), which is the first stage switch, is turned on. There is a structure in which a second pressing switch (93) which is a second-stage switch is turned on when pressing 50).

JP 2007-173094 A

However, the press-type two-stage switch described in Patent Document 1 has the following problems.
(1) Since the first push switch (17) of the first stage of the push type two-stage switch is constituted by a so-called membrane switch, the first push switch (17) is pushed by the key top (50). In this case, the resistance value between the two switch contact patterns (13, 23) that are turned on varies greatly depending on the strength and direction of the force, and the contact stability may be lacking.

(2) The second-stage second push switch (93) of the push-type two-stage switch has a structure in which the switch is turned on by reversing the reversing plate (93c) made of an elastic metal plate. Even after turning on, there is a case where force is applied so as to push in the key top (50) due to the remaining force. If this operation is repeated, the reversal plate (93c) may eventually be destroyed.

  The present invention has been made in view of the above points, and its purpose is excellent in the switching stability of the on / off state of each stage switch, and the force to push the switch further after switching the on / off state of the last stage switch. It is an object of the present invention to provide a push-type multistage switch in which the switch is not broken even if the is added.

A push-type multistage switch according to the present invention is installed on a rotating body, a detection unit that switches on and off the switch according to a rotation angle of the rotating body in a plurality of stages, and an upper part of the rotating body so as to be movable up and down. A pressing member, and the rotating body is provided with an abutting sliding surface inclined toward the rotating direction of the rotating body, while the pressing member is pressed on the abutting sliding surface of the rotating body. A pressing portion that rotates the rotating body by sliding while being provided is provided.
That is, the pressing operation (linear operation) of the pressing member is converted into the rotating operation of the rotating body, and the on / off state of the switch is switched in a plurality of stages according to the rotating angle of the rotating body. Detection means such as a sliding contact of the slider on the switch pattern can be used, and the switching stability of the on / off state of the switches at each stage can be improved. Further, even if a force for pushing the pressing member is further applied after switching the on / off state of the last-stage switch (a force to make the overstroke), the force is not applied to the detection means, so the last-stage switch is It can be surely prevented from being destroyed by the pressing force.

In the present invention, there are a plurality of sets of pressing portions of the contact member sliding surface and the pressing member that contacts the contact sliding surface, and each set is point-symmetrical with respect to the rotation axis of the rotating body. It is preferable that it is installed in.
Accordingly, when the pressing member is pressed, the rotating body can be rotated with a good balance.

Further, according to the present invention, the abutting sliding surface of the rotating body is inclined toward the rotating direction of the rotating body, and at the same time, is inclined so as to be increased radially outward from the rotating shaft of the rotating body. It is preferable.
In this way, when the contact sliding surface of the rotating body is inclined so as to increase radially outward from the rotating shaft of the rotating body, the pressing portion of the pressing member becomes the contact sliding surface of the rotating body. When pressing, the downward pressing force can be distributed to the radially outward force, thereby reducing the force to push the rotating body downward and making the rotating body rotate more smoothly. Is possible.

In the present invention, it is preferable that the push-type multistage switch further includes a rotating body return spring for automatically returning the rotating body in the rotation direction.
Thus, the rotating body can be surely automatically returned to the original position (position where the pressing member rises most).

In the present invention, the pressing multistage switch further includes a base that rotatably supports the rotating body, and a pressing member return spring that automatically returns the pressing member to the base. A second pressing member return spring that presses down the pressing member against the elastic force of the pressing member return spring and abuts when the on / off state of the first-stage switch is switched to increase the pressing resistance force of the pressing member; It is preferable to install.
If the base is installed in this way, the rotating body can be securely pivotally supported, and both the pressing member return spring and the second pressing member return spring can be easily installed. In addition, since the pressing member return spring and the second pressing member return spring are installed, when the ON / OFF state of the first-stage switch is switched, and when the pressing member is further pressed to switch the ON / OFF state of the second-stage switch, The pressing force increases, and it can be easily recognized that the second-stage switch has been pressed.

In the present invention, it is preferable that a storage portion for storing the second pressing member return spring is provided on the base, and the pressing member return spring is installed at a position surrounding the storage portion.
Thereby, the pressing member return spring and the second pressing member return spring can be housed and installed in a compact manner on the base.

In the present invention, it is preferable that the pressing portion of the pressing member is inserted through an insertion portion provided in the base and supported so as to be movable up and down.
Thereby, the vertical movement of the pressing member can be performed smoothly without the pressing member rotating.

  According to the present invention, the switching stability of the on / off state of each stage switch is improved. Further, even if a force for pushing the switch is applied after switching the on / off state of the last-stage switch, it is possible to reliably prevent the last-stage switch from being broken by the pressing force of the pressing member.

1 is a perspective view of a push-type multistage switch (push-type two-stage switch) 1. FIG. FIG. 2 is an exploded perspective view of a push-type two-stage switch 1. FIG. 3 is an exploded perspective view of the push-type two-stage switch 1 viewed from below (however, the circuit board 190 and the mounting base 210 are not shown). 1 is a cross-sectional view of a push-type two-stage switch 1. FIG. FIG. 5 is an operation explanatory diagram of the push-type two-stage switch 1. FIG. 5 is an operation explanatory diagram of the push-type two-stage switch 1. FIGS. 7A and 7B are diagrams showing a cross-sectional state of the contact sliding surface 133 in the push-type two-stage switch 1, FIG. 7A is a cross-sectional state in the radial direction, and FIG. . It is a figure which shows the cross-sectional state of 133 A of contact inclination surfaces provided in the rotary body, FIG. 8 (a) is a cross-sectional state of radial direction, FIG.8 (b) is a figure which shows the cross-sectional state of rotation direction. It is sectional drawing of the press type 2 step | paragraph switch 1-2. It is a top view of the rotary body 120-2.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a perspective view of a press-type multistage switch (hereinafter referred to as “press-type 2-stage switch”) 1 according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the press-type 2-stage switch 1, and FIG. FIG. 4 is an exploded perspective view of the two-stage switch 1 as viewed from below (note that the circuit board 190 and the mounting base 210 are omitted), and FIG. 4 is a cross-sectional view of the push-type two-stage switch 1 (A-A cross-sectional view of FIG. ). In the following description, “upper” refers to a direction in which the following pressing member 10 is viewed from the rotating body 120 described below, and “lower” refers to the opposite direction. The rotation center axis of the rotator 120 is referred to as a rotation axis L1 (see FIG. 2).

  As shown in FIGS. 1 to 4, the push-type two-stage switch 1 has a circuit board (hereinafter referred to as “flexible circuit board”) 190, a slider 170, and a rotating body return spring 110 mounted on a mounting base 210. The rotating body 120, the base 50 to which the pressing member return spring 40 and the second pressing member return spring 100 are attached, and the pressing member 10 are installed.

  The pressing member 10 is an integrally molded product of synthetic resin, and is configured to project a substantially hexagonal cylindrical shaft portion 13 downward from the center of the lower surface of the substantially disk-shaped operation portion 11. The inside of the shaft portion 13 is a spring insertion portion 14. A pressing portion base 15 that protrudes in a substantially rectangular shape toward the outer side in the radial direction is provided at a position that opposes the operation portion 11 at 180 °, and a circular shape that protrudes directly downward from the lower surface of each pressing portion base 15. A columnar pressing portion 17 is provided. The tip of the pressing portion 17 is formed in a hemispherical shape. Locking claws 21 are formed on the side wall of the shaft portion 13 that faces 180 ° by providing slits 19 that are open at the lower ends and directed in the vertical direction on both sides thereof. The locking claw 21 bends in the thickness direction. A claw portion 23 that protrudes outward is formed at the lower end side of the locking claw 21. The direction connecting both locking claws 21 and the direction connecting both pressing portions 17 are shifted by 90 ° in the rotation direction. A spring pressing portion 25 protruding in a substantially rectangular shape is provided on the lower surface of the operation portion 11 in the shaft portion 13. The longitudinal direction of the spring pressing portion 25 faces the direction connecting the both locking claws 21.

  The pressing member return spring 40 is a compression coil spring, and is inserted into the shaft portion 13 of the pressing member 10 and has an inner diameter dimension longer than the length dimension of the spring pressing portion 25. In other words, when the pressing member return spring 40 is inserted into the spring insertion portion 14, the end portion abuts against the lower surface of the operation portion 11, and the spring pressing portion 25 enters inside. .

  The base 50 is an integrally molded product of synthetic resin, and is formed by protruding a bottomed cylindrical shaft portion 53 from the center of the lower surface of the substantially disc-shaped main body portion 51. The outer peripheral shape of the shaft portion 53 is substantially circular, and is formed to have a size that is rotatably inserted into a shaft support portion 122 of the rotating body 120 described below. The concave portion on the upper surface side of the shaft portion 53 is a bearing portion 55, and the inner peripheral shape thereof is a substantially hexagonal shape so that the shaft portion 13 of the pressing member 10 can be accommodated without rotating up and down almost exactly. Is formed. The bearing portion 55 also serves as a spring insertion portion. A pair of claw locking portions 57 each having a rectangular cut-out shape are formed on the side wall portion of the shaft portion 53 facing 180 °. The claw locking part 57 is formed in a dimension shape that locks the claw part 23 of the locking claw 21 provided on the pressing member 10 so as to be movable up and down. From the center of the bottom surface of the bearing portion 55, a spring support projection 59 having a substantially cylindrical shape and a ceiling surface 63 projects upward. The spring support protrusion 59 is formed to have an outer dimension that allows the inner peripheral side of the pressing member return spring 40 to be inserted almost exactly. On the lower surface side of the spring support protrusion 59, a storage portion 61 is formed that stores the outer peripheral side of the second pressing member return spring 100 described below substantially exactly. There is a ceiling surface 63 on the upper surface of the spring support protrusion 59, and a slit-like spring pressing portion insertion portion 65 is provided on the ceiling surface 63 so as to cross the ceiling surface 63. The spring pressing portion insertion portion 65 is formed to have a depth that allows the spring pressing portion 25 of the pressing member 10 to be inserted almost exactly. Yes. From the lower surface of the shaft portion 53, four small protrusion-like attachment portions 67 protrude so as to surround the periphery of the storage portion 61 at equal intervals.

  A circular shape in which the pressing portion 17 of the pressing member 10 is inserted almost exactly so as to be movable up and down at a position opposite to the rotation axis L on the outer side of the shaft portion 53 of the main body portion 51 of the base 50. An insertion portion 69 made of a hole is formed. In addition, a pair of spring locking portions 71 protrude at positions around the shaft portion 53 on the lower surface of the main body portion 51. Between the two spring locking portions 71, a rotating body return spring 110 described below is disposed. Further, a support protrusion 73 protruding in an arc shape is provided at a predetermined position on the outer periphery of the lower surface of the main body 51. The support protrusion 73 is disposed in contact with or close to the upper surface of a slider mounting portion 123 of the rotating body 120 described below, and prevents the slider mounting portion 123 from floating.

  The second pressing member return spring 100 is a compression coil spring and is inserted into the storage portion 61 of the base 50. The rotating body return spring 110 is also a compression coil spring, and is inserted into a spring housing recess 129 of the rotating body 120 described below.

  The rotating body 120 is an integrally molded product of synthetic resin, and is provided with a shaft support portion 122 formed of a circular hole at the center of a cylindrical rotating body main body 121, and 180 on the outer peripheral side surface of the rotating body main body 121. A slider mounting portion 123 and a spring storage portion 125 are provided so as to protrude from the opposed positions, while a pair of abutting slides from the positions that are different from each other by 90 ° in the rotation direction and opposed to 180 °. The surface forming portion 127 is provided so as to protrude. The slider mounting portion 123 protrudes in a substantially rectangular shape from the lower part of the outer peripheral side surface of the rotating body main body 121, and protrudes four mounting projections 124, which are small projections for mounting the slider 170 described below, on the lower surface thereof. It is configured. The spring accommodating portion 125 protrudes from the lower portion of the outer peripheral side surface of the rotating body main body 121, and a spring accommodating recess 129 for accommodating the second pressing member return spring 100 in an arc shape is provided on the upper surface side of the spring accommodating portion 129. Insertion grooves 131 for inserting and arranging spring locking portions 71 provided on the base 50 are provided at both ends in the direction.

  Both contact sliding surface forming portions 127 are configured to protrude in a substantially rectangular shape from the lower part of the outer peripheral side surface of the rotating body main body 121, and to form the contact sliding surface 133 on the upper surface. 7A and 7B show the state of the cross section of the contact sliding surface 133, and FIG. 7A shows the state of the cross section in the radial direction (radial direction centering on the rotation axis L1). FIG. 7B shows a cross-sectional state in the rotation direction (rotation direction about the rotation axis L1). As shown in FIG. 2 and FIGS. 7A and 7B, the contact sliding surface 133 is inclined toward the rotation direction of the rotating body 120 and at the same time has a radius from the rotation axis L of the rotating body 120. It inclines so that it may become high toward the direction outward. These contact sliding surfaces 133 are provided at positions facing the insertion part 69 of the base 50.

  The slider 170 is made of an elastic metal plate, protrudes three elastic contact arms 173 from one side of a substantially rectangular slider base 171, and folds them back at the base portion to lower the lower surface side of the slider base 171. The contact portion 175 is provided in the vicinity of the tip thereof. A mounting hole 177 for inserting each mounting protrusion 124 provided on the slider mounting portion 123 of the rotating body 120 is formed in the slider base portion 171.

  The flexible circuit board 190 is made of a synthetic resin film having flexibility, provided with four mounting holes 191 at predetermined positions thereof, and three arc-shaped conductor patterns having low resistance values at predetermined positions on the upper surface thereof. The switch patterns 193, 195 and 197 are formed. These switch patterns 193, 195, 197 are formed by printing a conductive paste or etching a copper foil. The four mounting holes 191 are formed at the positions facing the four mounting portions 67 of the base 50 with an inner diameter dimension capable of inserting them. The three switch patterns 193, 195 and 197 are each formed in an arc shape at a position where the contact portion 175 of the slider 170 is slidably contacted. The innermost switch pattern 193 is a common pattern and the center switch pattern. Reference numeral 195 denotes a switch pattern for turning on the first-stage switch, and outermost switch pattern 197 is a switch pattern for turning on the second-stage switch.

  The mounting base 210 is made of a hard synthetic resin or metal plate, and is formed in a shape that supports the flexible circuit board 190. Further, attachment holes 211 having substantially the same shape as the attachment holes 191 are formed at positions facing the attachment holes 191 of the flexible circuit board 190.

  In order to assemble the push-type two-stage switch 1, first, the slider base 171 of the slider 170 is first installed on the lower surface of the slider mounting part 123 of the rotating body 120. Insert into hole 177. Then, the mounting protrusion 124 is fixed by heat caulking.

  Then, the pressing member return spring 40 is housed in the spring insertion portion 14 of the pressing member 10, and then the shaft portion 13 of the pressing member 10 is inserted into the bearing portion 55 of the base 50 so as to be movable up and down at the same time. Ten pressing portions 17 are inserted into both insertion portions 69 of the base 50, respectively. Then, the claw portions 23 of the both locking claws 21 of the pressing member 10 are inserted and engaged in the both claw locking portions 57 of the base 50. As a result, the claw portion 23 enters the claw locking portion 57 so as to be movable up and down, and the pressing member 10 is held on the base 50 so as to be movable up and down by a predetermined distance and without coming off. Further, at this time, the pressing member 10 and the base 50 are separated from each other to a position where the claw portion 23 is locked to the upper end side of the claw locking portion 57 by the elastic force generated by the compression of the pressing member return spring 40. In other words, the pressing member 10 is ejected upward with respect to the base 50 and is held at the uppermost position. At this time, a spring support projection 59 is inserted into the pressing member return spring 40 to pivotally support the pressing member return spring 40.

  Next, the second pressing member return spring 100 is inserted into the storage portion 61 of the base 50, and then the rotary body return spring 110 is stored in the spring storage recess 129 of the rotary body 120. 50, the shaft portion 53 of the base 50 is inserted into the shaft support portion 122 of the rotating body 120 so as to be freely rotatable. At this time, a pair of spring locking portions 71 provided on the base 50 are inserted into the insertion grooves 131 of the rotating body 120 and come into contact with both ends of the rotating body return spring 110, and as shown in FIG. Each of the contact sliding surfaces 133 is in contact with the vicinity of the tip of the pressing portion 17 of the pressing member 10.

  The flexible circuit board 190 and the mounting base 210 are installed on the lower side of the base 50 to which the rotating body 120 is attached. At this time, the four mounting portions 67 provided on the base 50 are attached to the mounting holes 191 of the flexible circuit board 190. Are inserted into the mounting holes 211 of the mounting base 210, and the tips of the mounting portions 67 are heat caulked on the lower surface side of the mounting base 210. As a result, the assembly of the push-type two-stage switch 1 is completed. The above assembling procedure is an example, and it goes without saying that the assembly may be performed using other various assembling procedures.

  At this time, the contact portions 175 arranged in one row of the slider 170 are in the position of the alternate long and short dash line S0 shown in FIG. 2, that is, are electrically connected only to the switch pattern (common pattern) 193. That is, the switch is in an off state. The switch patterns 193, 195, 197 and the slider 170 are combined to be a detection unit that switches the on / off state of the switch according to the rotation angle of the rotating body 120. Further, at this time, the lower surface of the second pressing member return spring 100 is supported by the upper surface of the flexible circuit board 190, and the lower surface of the ceiling surface 63 in the storage unit 61 is repelled.

  Next, the operation of the pressing type two-stage switch 1 will be described. First, in a state where no external force is applied to the pressing member 10, as shown in FIG. 4, the pressing member 10 is repelled so as to be positioned at the uppermost position by the pressing member return spring 40. At the same time, the vicinity of the tip of the pressing portion 17 contacts the upper position of the contact sliding surface 133 of the rotating body 120, and the position of the contact portion 175 of the slider 170 is on the one-dot chain line S0 as described above. The switch is off.

  When the pressing member 10 is pressed directly downward (in the direction of arrow E1 in FIG. 5) from this state, the pressing member 10 resists the elastic force of the pressing member return spring 40 (and the elastic force of the rotating body return spring 110). At that time, the portions near the tips of the pressing parts 17 respectively press the both abutting sliding surfaces 133 of the rotating body 120. And the tip vicinity part of both the press parts 17 falls, sliding on the contact sliding surface 133 so that it may follow the inclination of the circumferential direction, and rotates the rotary body 120 simultaneously. The rotating body return spring 110 is compressed by the rotation of the rotating body 120. As a result, the contact portion 175 of the slider 170 rotates, and the contact portion 175 moves to the position of the alternate long and short dash line S1 shown in FIG. 2, whereby the switch pattern 193 and the switch pattern 195 are electrically connected to each other. Turns on. At this time, the pressing member 10 is lowered to the position shown in FIG. 5, the tip of the spring pressing portion 25 of the pressing member 10 enters the spring pressing portion insertion portion 65 of the base 50, and the upper end surface of the second pressing member return spring 100. Abut.

  By the way, in the case of the press type two-stage switch 1, two sets of the contact sliding surface 133 of the rotating body 120 and the pressing portion 17 of the pressing member 10 contacting the contact sliding surface 133 are provided. Since it installed in the point symmetrical position with respect to the rotating shaft L1 of 120, when the press member 10 is pressed, the rotary body 120 can be rotated with sufficient balance.

  Next, when the pressing member 10 is pressed further downward (in the direction of arrow E1) from the state shown in FIG. 5, the pressing member 10 resists the resilient force of both the pressing member return spring 40 and the second pressing member return spring 100. At that time, the pressing portions 17 further press the both abutting sliding surfaces 133 of the rotating body 120 respectively, and the pressing portions 17 are pressed so as to follow the circumferential inclination of the abutting sliding surface 133. The contact is lowered while sliding on the contact sliding surface 133, and at the same time, the rotating body 120 is rotated. As a result, the contact portion 175 of the slider 170 further rotates, and the contact portion 175 moves to the position of the alternate long and short dash line S2 shown in FIG. 2, thereby conducting between the switch pattern 193, the switch pattern 195, and the switch pattern 197, The second-stage switch turns on. At this time, the pressing member 10 is lowered to the position shown in FIG. 6, and the spring pressing portion 25 of the pressing member 10 further enters the spring pressing portion insertion portion 65 of the base 50.

  In this way, in this pressing type two-stage switch 1, since the pressing member return spring 40 and the second pressing member return spring 100 are installed, the pressing member 10 is pressed with a predetermined pressing force, and the first stage switch When the ON / OFF state is switched and the pressing member 10 is further pressed to switch the ON / OFF state of the second-stage switch, the pressing force increases, and it is easily recognized that the second-stage switch has been pressed. it can.

  In the case of this example, even after the second-stage switch is turned on, the pressing member 10 can be lowered further by the gap between the base 50 and the pressing member 10, and the rotating body 120 can be rotated. As described above, the pressing type two-stage switch 1 has a structure capable of overstroke of the pressing member 10. In other words, it is possible to easily overstroke only by providing a gap of a predetermined dimension between the pressing member 10 and the base 50.

  On the other hand, if the pressing to the pressing member 10 is released, the pressing member 10 is operated in the reverse direction to the above by the elastic force of the pressing member return spring 40, the second pressing member return spring 100, and the rotating body return spring 110. The rotating body 120 returns to the original state shown in FIG. 4, and the second-stage switch and the first-stage switch are turned off in this order. Then, the pressing member 10 stops at the position where the pressing member 10 rises most, and the rotating body 120 automatically returns to the original position so that the contact sliding surface 133 contacts the pressing portion 17 of the pressing member 10.

  Here, as described above, the abutting sliding surface 133 provided on the rotating body 120 is inclined in the rotating direction of the rotating body 120 as shown in FIG. ) Is inclined so as to increase radially outward from the rotation axis L <b> 1 of the rotating body 120, for the purpose of smoothly rotating the rotating body 120. The reason will be described below.

  8A and 8B are diagrams showing an example of the contact inclined surface 133A provided on the other rotating body 120A, and FIG. 8A is a radial direction (radial direction centered on the rotation axis). FIG. 8B shows a cross-sectional state in the rotation direction (rotation direction around the rotation axis). That is, generally, when converting the pressing operation into a rotating operation, the contact sliding surface 133A provided on the rotating body 120A is inclined toward the rotating direction of the rotating body 120A as shown in FIG. As shown in FIG. 8A, the rotating body 120A is formed horizontally from the rotation axis toward the outer side in the radial direction. However, when configured in this way, when the pressing portion 17A is pressed, much of the force directed directly downward becomes the force that directly pushes down the rotating body 120A. For this reason, the rotating body 120A is pressed against a member (such as the flexible circuit board 190 shown in FIG. 4) on which the rotating body 120A is placed, and there is a possibility that the rotating operation of the rotating body 120A cannot be performed smoothly.

  On the other hand, in the case of the press-type two-stage switch 1, the contact sliding surface 133 of the rotating body 120 is inclined so as to increase radially outward from the rotation axis L1 of the rotating body 120. When the pressing portion 17 is pressed as shown in FIG. 7 (a), the force directed downward can be dispersed into the force directed outward in the radial direction. From the above, the force that pushes down the rotating body 120 decreases, and accordingly, the rotating operation of the rotating body 120 can be performed more smoothly.

  As described above, the press-type two-stage switch 1 includes the rotating body 120 and the detection unit (slider 170 and switch pattern 193) in which the switch on / off state is switched in two stages according to the rotation angle of the rotating body 120. , 195, 197) and the pressing member 10 installed on the upper portion of the rotating body 120 so as to be movable up and down, and the sliding contact with the rotating body 120 is inclined toward the rotating direction of the rotating body 120. The surface 133 is provided, and the pressing member 17 is configured to be provided with a pressing portion 17 that rotates the rotating body 120 by sliding while pressing on the contact sliding surface 133 of the rotating body 120. That is, since the pressing operation (linear operation) of the pressing member 10 is converted into the rotating operation of the rotating body 120 and the on / off state of the switch is switched in two stages according to the rotation angle of the rotating body 120, the switch pattern 193, as the detection unit A slide-type detecting means in which the slider 170 is in sliding contact with 195 and 197 can be used, and the switching stability of the on / off state of each stage switch can be improved. That is, since both the first-stage switch and the second-stage switch are configured such that the slider slides on the sliding contact pattern, the resistance value when the switch is turned on increases or decreases the pressing force applied to the pressing member 10 and the pressing direction. It is stable and is almost constant. Further, even if a force for pushing the pressing member 10 is further applied after switching the on / off state of the last-stage switch, the force is not applied to the detection means, so that the last-stage switch is destroyed by the pressing force of the pressing member 10. There is nothing.

  Further, according to the press-type two-stage switch 1, the base 50 is provided with the storage portion 61 for storing the second pressing member return spring 100, and the pressing member return spring 40 is installed at a position surrounding the storage portion 61. Therefore, the pressing member return spring 40 and the second pressing member return spring 100 can be stored and installed in the base 50 in a compact manner.

  Further, according to the press type two-stage switch 1, since the pressing portion 17 of the pressing member 10 is inserted through the insertion portion 69 provided in the base 50 and supported so as to move up and down, the vertical movement of the pressing member 10 is The pressing member 10 can be smoothly performed without rotating.

  FIG. 9 is a cross-sectional view of a push-type two-stage switch 1-2 according to another embodiment of the present invention. FIG. 10 is a plan view of the rotator 120-2 used for the push-type two-stage switch 1-2. In the push-type two-stage switch 1-2 shown in the figure, the same or corresponding parts as those in the push-type two-stage switch 1 shown in FIGS. Attached). Note that matters other than those described below are the same as those in the embodiment shown in FIGS.

  The difference between the push-type two-stage switch 1-2 and the push-type two-stage switch 1 is that the structure of the rotating body 120-2 and the pressing member 10 changed in accordance with the change of the structure of the rotating body 120-2. -2 and base 50-2.

  That is, the rotating body 120-2 is provided with a shaft support portion 122-2 formed of a circular hole at the center of the rotating body main body 121-2 formed in a cylindrical shape, and on the outer peripheral side surface of the rotating body main body 121-2. The slider mounting portion 123-2 and the spring storage portion 125-2 are provided so as to protrude from a position facing each other by 180 °, while these are positions different from each other by 90 ° in the rotation direction and are within the rotation main body portion 121-2. A pair of contact sliding surface forming portions 127-2 are provided at positions on the circumferential side facing each other by 180 °. That is, the difference from the rotating body 120 is that the contact sliding surface forming portion 127-2 is provided inside the rotating body 120-2. A contact sliding surface 133-2 is formed on the upper surface of both contact sliding surface forming portions 127-2.

  Since the contact / sliding surface forming portion 127-2 is thus provided on the inner side of the rotating body 120-2, the position of the pressing portion 17-2 of the pressing member 10-2 and the pressing portion 17- are adjusted accordingly. The position of the insertion part 69-2 of the base 50-2 into which 2 is inserted is changed. If the pressing type two-stage switch 1-2 is configured in this way, the position of the contact sliding surface forming portion 127-2 and the position of the pressing portion 17-2 can be gathered on the center side in the radial direction. The overall size of the switch 1-2 can be reduced.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. Note that any shape, structure, or material not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are exhibited. For example, the push-type two-stage switch 1 is configured to switch the on / off state of the switch to two stages, but may be configured to switch to three or more stages. Even in such a case, a simple configuration change such as providing four switch patterns is sufficient. Further, in the push type two-stage switch 1, the first and second switches are sequentially turned on when the pressing member 10 is pushed. Conversely, when the pushing member 10 is pushed, the first stage is sequentially turned on. Alternatively, the second and second stage switches may be turned off. Such a configuration can also be easily realized only by changing the shape of the switch patterns 193, 195, 197. In the above example, the rotating body return spring 110 is attached to automatically return the rotating body 120. However, for example, the pressing member 10 is configured so that the pressing member 10 and the rotating body 120 interfere with each other. If the rotating body 120 is configured to return to the original state of FIG. 4 at the same time as the pressing member 10 is raised, the rotating body return spring 110 may not be provided.

  Needless to say, various modifications can be made to the structure of the rotating body, the detection unit, the pressing member, and the base. Further, the abutting sliding surface only needs to have a shape that is inclined at least in the rotation direction of the rotating body, and does not necessarily have to be inclined so as to become higher radially outward from the rotation axis of the rotating body ( For example, the contact sliding surface 133A shown in FIGS. 8A and 8B may be used. The contact sliding surface of the rotating body and the pressing portion of the pressing member contacting the contact sliding surface may be one set or three or more sets. In the case of a plurality of sets, as described above, each set is preferably installed at a point-symmetrical position with respect to the rotation center axis of the rotating body. In the above example, the flexible circuit board 190 is used as the circuit board, but a hard circuit board may be used instead. In that case, the mounting base 210 becomes unnecessary.

1 Pressing type 2-stage switch (Pressing type multi-stage switch)
DESCRIPTION OF SYMBOLS 10 Press member 17 Press part 40 Press member return spring 50 Base 61 Storage part 69 Insertion part 100 2nd press member return spring 110 Rotating body return spring 120 Rotating body 133 Contact sliding surface L1 Rotating shaft 170 Slider (detection) Part)
190 Flexible circuit board (circuit board)
193, 195, 197 Switch pattern (conductor pattern, detector)
210 Mounting base

Claims (7)

A rotating body,
A detection unit in which the on / off state of the switch is switched in a plurality of stages according to the rotation angle of the rotating body;
A pressing member installed on the upper part of the rotating body so as to freely move up and down,
The rotating body is provided with a contact sliding surface that inclines toward the rotating direction of the rotating body,
On the other hand, a pressing-type multistage switch, wherein the pressing member is provided with a pressing portion that rotates the rotating body by sliding while pressing on the contact sliding surface of the rotating body. The press-type multistage switch according to claim 1,
There are a plurality of sets of abutting sliding surfaces of the rotating body and pressing portions of the pressing members that are in contact with the contacting sliding surfaces, and each set is installed at a point-symmetrical position with respect to the rotation axis of the rotating body. A press-type multistage switch characterized by that. The press-type multistage switch according to claim 1,
The contact sliding surface of the rotating body is inclined toward the rotating direction of the rotating body, and at the same time, is inclined so as to become higher radially outward from the rotating shaft of the rotating body. Press type multistage switch. The press-type multistage switch according to claim 1,
The press-type multistage switch further includes a rotary body return spring that automatically returns the rotary body to a rotation direction. The press-type multistage switch according to claim 1,
The press-type multistage switch further includes a base that rotatably supports the rotating body,
In the base,
A pressing member return spring for automatically returning the pressing member upward;
A second pressing member return spring that presses down the pressing member against the elastic force of the pressing member return spring and abuts when the on / off state of the first-stage switch is switched to increase the pressing resistance force of the pressing member; A press-type multi-stage switch characterized in that is installed. The press-type multistage switch according to claim 5,
The press-type multistage switch, wherein the base is provided with a storage portion for storing the second pressing member return spring, and the pressing member return spring is installed at a position surrounding the storage portion. The press-type multistage switch according to claim 5,
The pressing multistage switch, wherein the pressing portion of the pressing member is inserted through an insertion portion provided on the base and is supported so as to be movable up and down.

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