JP2007280704A - Switching device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a switching device with a two-stage switching structure of low cost and good operability, capable of creating click feeling in a simple structure. <P>SOLUTION: A common fixed contact 2 and an individual fixed contact 3 are arranged with a part of a flat face and a side end face while being protruded with a step from a bottom face of a base stand 1, and with their side end faces set opposed to each other in a direction crossing a sliding direction of a slide member 4, and at the same time, the individual fixed contact 3 is set in opposition to a sliding direction of the sliding member 4. A spherical movable contact 6 is in contact with the side end faces of the common fixed contact 2 and a first individual fixed contact 3a to output a first-step signal in accordance with movement of the slide member 4, and in accordance with further movement of the slide member, the spherical movable contact 6 climbs up on a flat face of the common fixed contact 2 and the first individual fixed contact 3a to come in contact with a second individual fixed contact 3b, whereby, a second-step signal is outputted with a click feeling. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a switch device having a two-stage switch structure used as an operation switch for various electronic devices.

  As a conventional switch device having a two-stage switch structure, an insulating plate provided with a plurality of fixed contacts, a movable contact piece that is in sliding contact with these fixed contacts, an operator that holds and slides these movable contacts, The thing comprised by the cover and case which cover is known (for example, refer patent document 1).

  9 to 11 show plan views of the switch device. FIG. 9 shows a state in which the movable contact piece is in the neutral position N, FIG. 10 shows a state in which the movable contact piece is in the first position MD, and FIG. The movable contact shows the state of the second position AD. In the figure, the operator, the cover, and the case are not shown. In the figure, the insulating plate 31 is provided with a common fixed contact 11, first fixed contacts 12, 13 and second fixed contacts 14, 15 on the upper surface thereof.

  The insulating plate 31 includes a neutral position N corresponding to an operation position of a knob (not shown), first positions MU and MD, second positions AU and AD, a first area Z1 corresponding to a moving range of the movable contact piece 32, and A second area Z2 is set. More specifically, the neutral position N is the position of the movable contact piece 32 when the knob is in the neutral position, and the first positions MU and MD are when the knob operation position is the first stage operation position. The second positions AU and AD are the positions of the movable contact piece 2 when the knob operation position is the second operation position further operated from the first stage. The first region Z1 is a region where the common fixed contact 11 and the first fixed contacts 12 and 13 are arranged, and the second region Z2 is a region where the common fixed contact 11 and the second fixed contacts 14 and 15 are arranged. It is.

  The movable contact piece 32 is movable between a neutral position N, a first position MU, MD, and a second position AU, AD set on the insulating plate 31, and slides on the first region Z1 of the insulating plate 31. And a second contact piece 22 that slides in the second region Z2.

  Next, the operation of the above will be described. First, FIG. 9 shows a state where the knob is not operated, and the moving position of the movable contact piece 32 is in the neutral position N. In this state, since the movable contact piece 32 is not in contact with any of the fixed contacts 11 to 15, the two-stage switch device does not output a signal.

  FIG. 10 shows a state in which the knob is operated to the first-stage operation position, and the movable contact piece 32 has moved from the neutral position N to the first position MD. In this state, the movable contact piece 32 contacts both the common fixed contact 11 and the first fixed contact 12, and bridges between the two fixed contacts 11 and 12. As a result, the two-stage switch device inputs the first-stage signal.

  FIG. 11 shows a state where the knob is operated to the second operation position, and the movable contact piece 32 has moved from the neutral position N to the second position AD. In this state, the movable contact piece 32 contacts both the common fixed contact 11 and the second fixed contact 14, and bridges between the fixed contacts 11 and 14. As a result, the two-stage switch device inputs the second-stage signal.

Japanese Patent No. 3628423

  However, in the above-described conventional switch device, the movable contact piece generates contact pressure when sliding with the respective fixed contact by the elastic force due to its own bending, so that the first and second stage operation feels. Cannot be made different from each other, the operability is poor, and when a separate part such as a click spring is added, the number of parts is increased and the cost cannot be reduced.

  Accordingly, an object of the present invention is to solve the above-described problems, and to provide a switch device having a two-stage switch structure that can create a click feeling with a simple configuration, is inexpensive, and has good operability.

  In order to solve the above-mentioned problems, the present invention provides, as a first solving means, a base on which a common fixed contact and first and second individual fixed contacts are disposed, and the base is slidably accommodated in the base. A slide member, an elastic member that urges the slide member in one direction, and a spherical movable contact that contacts the common fixed contact and the first and second individual fixed contacts as the slide member moves, The common fixed contact and the first and second individual fixed contacts are arranged with a part of flat plate surface and side end surface protruding with a step from the bottom surface of the base, and intersect with the slide direction of the slide member. The common fixed contact and the first and second individual fixed contacts are arranged with their side end surfaces facing each other with a predetermined interval in the direction to be moved, and the first individual fixed contact in the sliding direction of the slide member And second individual fixation The spherical movable contact contacts between the common fixed contact and the side end surface of the first individual fixed contact with the movement of the slide member, and the first step A signal is output, and the spherical movable contact rides on the flat surface of the common fixed contact and the first individual fixed contact with further movement of the slide member, and clicks by contacting the second individual fixed contact The second stage signal is output with a feeling.

Further, as a second solution, the base is provided with a guide groove having an inclined surface expanding upward from the bottom surface, and the common fixing is performed on the opposing inner surface at a position one step higher than the bottom surface of the guide groove. The contact and the first and second individual fixed contacts are projected to form a first-stage contact portion on the side end surfaces of the common fixed contact and the first individual fixed contact, and the common fixed contact and the second individual fixed contact are formed. The contact portion of the second stage was formed on the flat surface of the contact.
Further, as a third solving means, the common fixed contact that contacts the spherical movable contact and the first individual fixed contact are gradually opposed to each other in the direction in which the second individual fixed contact is disposed. The inclined portion is formed so that the interval between the two is narrowed.
As a fourth solution, the common fixed contact and the first and second individual fixed contacts are configured such that a flat plate surface on which the spherical movable contact rides is a punched surface at the time of punching.
Further, as a fifth solving means, the slide member is provided with a drive plate that contacts the one end side of the elastic member and is movable in the urging direction of the elastic member, and the spherical movable contact is connected to the slide member and the slide member. It is configured such that the spherical movable contact is urged toward the bottom surface of the base by the elastic force of the elastic member by being sandwiched between the drive plate and movably held by the slide member.

  As described above, the switch device of the present invention includes a base on which the common fixed contact and the first and second individual fixed contacts are disposed, a slide member that is slidably accommodated on the base, and a slide member And a spherical movable contact that contacts the first and second individual fixed contacts as the slide member moves, the common fixed contact and the first and second fixed contacts. The individual fixed contacts are arranged with a part of the flat plate surface and side end surfaces protruding from the bottom surface of the base with a step, and are spaced apart from the common fixed contact by a predetermined interval in a direction intersecting the sliding direction of the slide member. The first and second individual fixed contacts are arranged with their side end surfaces facing each other, and the first individual fixed contact and the second individual fixed contact are opposed to each other with a predetermined interval in the sliding direction of the slide member. And move the slide member As a result, the spherical movable contact abuts between the side edges of the common fixed contact and the first individual fixed contact, and a first stage signal is output. As the slide member further moves, the spherical movable contact changes between the common fixed contact and the first fixed fixed contact. Since the second stage signal is output with a click feeling by riding on the flat surface of one individual fixed contact and contacting the second individual fixed contact, the common fixed contact and the first and second individual contacts are output. Since the flat and side surfaces of the fixed contact protrude from the bottom of the base with a step, the contact step can be easily formed when the first and second contact points are switched. The accompanying two-stage switch can be easily formed.

The base is provided with a guide groove having an inclined surface expanding upward from the bottom surface. The common fixed contact and the first and second individual fixings are provided on the opposing inner surfaces at a position one step higher than the bottom surface of the guide groove. The contact is protruded, the first stage contact portion is formed by the side end face of the common fixed contact and the first individual fixed contact, and the second stage contact portion is formed by the flat surface of the common fixed contact and the second individual fixed contact. Since the first and second step contact portions are formed by the side end surface and the flat plate surface of the metal plate constituting the fixed contact, the click step portion is formed. There is no need to bend the metal plate in a complicated manner, the structure is simple, and processing can be performed easily.
In addition, an inclined portion is formed on the side end surfaces of the common fixed contact that contacts the spherical movable contact and the first individual fixed contact so that the interval between the second fixed contact and the second individual fixed contact is gradually reduced. Thus, the spherical movable contact is slidably contacted along the inclined portion in the direction of climbing on the flat plate surface, so that the common fixed contact and the first individual fixed contact and the spherical movable contact can be reliably contacted.
In addition, the common fixed contact and the first and second individual fixed contacts are not affected by the return (burr) of the shear plane because the flat plate surface on which the spherical movable contact rides is used as the punching surface at the time of punching. A smooth sliding surface is obtained.
In addition, the slide member is provided with a drive plate that is in contact with one end of the elastic member and movable in the biasing direction of the elastic member, and the spherical movable contact is sandwiched between the slide member and the drive plate to be driven by the slide member. Since the spherical movable contact is biased toward the bottom surface of the base by the elastic force of the elastic member, the contact pressure can be increased even with a small spherical movable contact, and the first and second stages can be increased. Contact switching can be performed reliably.

  Embodiments of the present invention are shown in FIGS. 1 is an overall perspective view showing the switch device of the present invention, FIG. 2 is an exploded perspective view showing the switch device of the present invention, FIG. 3 is a plan view showing a state in which the cover of the switch device of the present invention is removed, and FIG. FIG. 5 is a perspective view showing a base portion of the switch device of the present invention, FIG. 6 is a plan view showing the arrangement relationship of the contact portions of the switch device of the present invention, and FIG. FIG. 8 is a cross-sectional view showing the first-stage ON state of the switch device of the present invention, and FIG. 8 is a cross-sectional view showing the second-stage ON state of the switch device of the present invention.

  1 and 2, the switch device according to the present invention includes a base 1 provided with a plurality of fixed contacts, a spherical movable contact 6 that slides on the fixed contacts, and an elastic member 7 that holds the spherical movable contact 6. The sliding member 4 and the drive plate 5 that are urged in one direction and are slidably accommodated in the base 1, and the cover 8 that covers the upper surface side of the opening of the base 1 are mainly configured.

  As shown in FIGS. 2 and 5, the base 1 is formed of an insulating material such as synthetic resin, and has a substantially rectangular shape with an upper surface and one side surface opened and a storage portion 1 a inside and an opening portion 1 b on the side surface. It is formed in a box shape. On one side surface of the base 1 where the opening 1b is provided, engaging projections 1c that engage with the cover 8 are provided on both sides of the opening 1b. In addition, an engaging protrusion 1d that engages with the cover 8 is also provided on a side surface that faces the side surface in which the opening 1b is provided.

  A pair of concave grooves 1e and 1e extending along the sliding movement direction of the slide member 4 are provided on both sides of the inner bottom surface of the storage portion 1a. An elastic member 7 is accommodated in the pair of concave grooves 1e and 1e, and one end side of the elastic member 7 is in contact with the drive plate 5, and the other end side is in contact with the inner side surface of the storage portion 1a. ing. Further, a concave and narrow groove-shaped guide groove 1f extending along the sliding movement direction of the slide member 4 is provided at the center of the inner bottom surface of the storage portion 1a. A pair of inclined grooves are provided on both sides of the guide groove 1f. Surfaces 1g and 1g are provided. Further, the pair of inclined surfaces 1g and 1g are formed in an arc surface shape or a slope shape in the direction of expanding from the bottom surface of the guide groove 1f upward (in the present embodiment, an arc surface shape).

  In addition, a common fixed contact 2 made of a conductive metal plate and a first fixed contact 3a are provided on the opposing inner side surface, which is one level higher than the bottom surface of the guide groove 1f located on the side opposite to the opening 1b of the base portion 1. The second fixed contact 3b is provided. The common fixed contact 2 and the first and second individual fixed contacts 3a and 3b have a part of flat plate surface and side end surface exposed from the bottom surface and inner surface of the guide groove 1f, and the bottom surface of the base 1 (guide groove). It is embedded in a state protruding from the bottom of 1f with a step.

  The common fixed contact 2 and the first and second individual fixed contacts 3a and 3b are arranged with their side end surfaces facing each other at a predetermined interval in a direction intersecting the slide direction of the slide member 4. In addition, the first individual fixed contact 3a and the second individual fixed contact 3b are arranged facing each other at a predetermined interval in the sliding direction of the slide member 4. The other ends of the common fixed contact 2 and the first and second individual fixed contacts 3a and 3b are led out to the outside of the side surface of the base 1, respectively, and are provided with connection terminals 2b, 3d and 3e, respectively. ing.

  The first-stage contact portion is formed by the side end surfaces of the common fixed contact 2 and the first individual fixed contact 3a, and the second-stage contact portion is formed by the flat surface of the common fixed contact 2 and the second individual fixed contact 3b. Is forming. When the switch member is operated, the spherical movable contact 6 is guided and driven between the inclined surfaces 1g and 1g of the guide groove 1f as the slide member 4 moves, and the common fixed contact 2 and the first individual fixed contact are driven. Abutting between the side end surfaces of 3a, the first stage signal is output and the first stage switch is turned on. Then, as the slide member 4 is further pressed and moved from this state, the spherical movable contact 6 moves from the common fixed contact 2 and the first fixed contact 2 to the first fixed contact 2 and the first fixed contact 3a. The second stage signal is output and the second stage switch is turned on by riding on the flat surface of the individual fixed contact 3a and contacting the second individual fixed contact 3b.

  At this time, the spherical movable contact 6 abuts between the side end surfaces of the common fixed contact 2 and the first individual fixed contact 3a, and then rides on the flat plate surface of the common fixed contact 2 and the first individual fixed contact 3a. In the process of contacting the second individual fixed contact 3b, the spherical movable contact 6 rides on the flat surface of the common fixed contact 2 and the first individual fixed contact 3a that are one step higher than the bottom surface of the guide groove 1f, A click feeling can be imparted when the slide member 4 is slid, and a good operation feeling can be obtained.

  In this way, the common fixed contact 2 and the first and second individual fixed contacts 3a and 3b protrude from the bottom surface of the guide groove 1f to the opposite inner side surfaces that are one step higher, so that the common fixed contact 2 and the first individual contact The first-stage contact portion is formed on the side end surface of the fixed contact 3a, and the second-stage contact portion is formed on the flat surface of the common fixed contact 2 and the second individual fixed contact 3b. In order to obtain the click step portion separately, the first step and the second step contact portion can be formed by the side end surface and the flat plate surface of the metal plate forming the step, and the click step portion can be formed. There is no need to bend the contact metal plate in a complicated manner, and the flat metal plate can be used as it is, and the structure is simple and can be easily processed.

  Further, on the side end surfaces of the common fixed contact 2 and the first individual fixed contact 3 a that are in contact with the spherical movable contact 6, in the direction in which the second individual fixed contact 3 b is disposed in the sliding direction of the slide member 4. Inclined portions 2a and 3c are formed so that the interval between the opposing portions gradually decreases. Then, by forming the inclined portions 2a and 3c on the side end surfaces of the common fixed contact 2 and the first individual fixed contact 3a, the spherical movable contact 6 extends from the side end surface to the flat plate surface along the inclined portions 2a and 3c. Since it comes into sliding contact in the upward direction, the common fixed contact 2 and the first individual fixed contact 3a and the spherical movable contact 6 can be reliably contacted.

  In the present embodiment, the common fixed contact 2 and the first and second individual fixed contacts 3a and 3b are stamped on the flat plate surface on which the spherical movable contact 6 rides in the process of punching the metal plate. It is formed so as to be the punching surface of time. For this purpose, the spherical movable contact 6 extends along the inclined portions 2a and 3c formed on the side end surfaces of the common fixed contact 2 and the first individual fixed contact 3a in a direction to ride on the flat plate surface from the side end surface. When sliding, it is not affected by the return (burr) of the shearing surface, so that a smooth sliding surface can be obtained.

  The slide member 4 is also formed of an insulating material such as synthetic resin, and is provided in front of the drive unit 4a and a drive unit 4a that is slidably accommodated in the storage unit 1a of the base 1. And a rectangular operation portion 4b protruding from the opening 1b. The drive unit 4a is provided on both side surfaces, and is provided on the inner side of the pair of sliding arm portions 4c and 4c that engage with both wing portions 5b of the driving plate 5, and is formed in a spherical shape. A contact holding portion 4d that holds the movable contact member 6, and a substantially rectangular engagement convex portion that protrudes on the upper surface side of the contact holding portion 4d and engages the drive plate 5 so as to be movable in the sliding movement direction of the slide member 4. 4e.

  In addition, a semicircular holding hole 4f that accommodates the movable contact member 6 is provided in the center on the rear side of the contact holding part 4d, and an inner peripheral surface of the holding hole 4f is provided on the inner peripheral surface of the base 1. An inclined surface 4g that expands toward the inner bottom surface side of the storage portion 1a is provided. When the spherical movable contact member 6 is sandwiched between the holding hole 4f of the contact holding portion 4d and the drive plate 5, the spherical movable contact member 6 is urged toward the bottom surface of the base 1 by the inclined surface 4g. It has become.

  The drive plate 5 is formed by punching and bending a conductive metal plate. The drive plate 5 is flat and has a rectangular substrate portion 5a having both wing portions 5b and 5b in the center, and is provided at the approximate center of the substrate portion 5a. A rectangular engagement hole 5c, a pair of spring contact portions 5d, 5d formed to face each other by bending the tip portions of both wing portions 5b, 5b of the substrate portion 5a downward at a right angle, and the substrate portion 5a The other end side has a contact pressing portion 5e formed by being bent downward.

  The drive plate 5 is placed on the upper surface side of the drive unit 4 a of the slide member 4, and a rectangular engagement hole 5 c provided in the substrate unit 5 a is formed in a rectangular shape provided in the drive unit 4 a of the slide member 4. The drive plate 5 is engaged with the engagement convex portion 4 e and is movable in the slide movement direction of the slide member 4 following the slide movement of the slide member 4. In this case, the engagement hole 5c is formed to have a slightly larger dimension in the sliding direction than the engagement convex portion 4e, so that the drive plate 5 can independently slide on the drive portion 4a of the slide member 4. It is in a loosely fitted state.

  At this time, the pair of spring contact portions 5d and 5d provided on both wing portions 5b and 5b of the drive plate 5 are paired with a pair of sliding arm portions 4c provided on both side surfaces of the drive portion 4a of the slide member 4. 4c is arranged in a state of being opposed to or in contact with the front end surface of 4c, and the contact pressing portion 5e provided on the other end side is an inner peripheral surface of the holding hole portion 4f provided at the rear center of the contact holding portion 4f. It is arranged in a state of facing.

  The spherical movable contact member 6 is formed in a spherical shape with a conductive metal material. The spherical movable contact member 6 does not have elasticity by itself, whereas the conventional movable contact piece generates a contact pressure at the time of sliding by an elastic force due to its own bending, whereas the spherical movable contact member 6 Since it is not necessary to generate contact pressure by the bending of the member 6 itself, it can be easily formed with a metal ball or the like, so that the size can be reduced. The spherical movable contact member 6 is sandwiched between the contact pressing portion 5e of the drive plate 5 and the inclined surface 4g provided on the inner peripheral surface of the holding hole portion 4f of the slide member 4 so that the slide member 4 can be driven. Since it is held, even when the spherical movable contact member 6 is formed in a spherical shape, it is possible to stably maintain a conductive state during the slide movement.

  The elastic member 7 is formed of a coil spring made of a conductive metal wire. One end of the elastic member 7 is in contact with the spring contact portion 5d of the drive plate 5 mounted on the upper surface side of the drive portion 4a of the slide member 4, and the other end side is the inner surface of the storage portion 1a of the base 1. Are disposed in a pair of recessed groove portions 1e and 1e formed on both sides of the inner bottom surface of the storage portion 1a of the base 1. Further, the elastic member 7 elastically biases the slide member 4 accommodated in the accommodating portion 1a so as to be slidable in one direction (right direction in FIG. 3).

  In this case, the elastic member 7 is provided between the pair of spring contact portions 5d and 5d provided on the blades 5b and 5b of the base plate portion 5a of the drive plate 5 and the inner surface of the storage portion 1a of the base 1. Two are arranged. That is, a pair of elastic members 7 are provided at positions facing each other with the spherical movable contact member 6 as a center. For this reason, since the spherical movable contact member 6 is elastically pressed by the plurality of elastic members 7, a large contact pressure can be obtained and these elastic members 7 can be arranged in a balanced manner in the switch. The contact member 6 can be reliably biased toward the bottom surface of the base 1.

  As shown in FIGS. 3 and 4, in a state where the elastic member 7 is incorporated in the storage portion 1 a, one end side of the elastic member 7 is brought into contact with the spring contact portion 5 d of the drive plate 5, and the drive plate 5 is Along with the slide member 4, the operation portion 4 b of the slide member 4 is urged in a protruding direction, and at this time, the contact pressing portion 5 e of the drive plate 5 and the inner peripheral surface of the holding hole portion 4 f of the slide member 4 are provided. The spherical movable contact member 6 sandwiched between the inclined surface 4g and the inclined surface 4g of the holding hole portion 4f is applied to the inclined surface 4g of the holding hole portion 4f by the pressing force of the contact pressing portion 5e by the elastic force of the elastic member 7 (left direction in FIG. 4). It is pressed and is pressed to the inner bottom surface side (downward direction in FIG. 4) of the storage portion 1a along the inclined surface 4g.

  In this manner, the spherical movable contact member 6 is sandwiched between the one end side of the drive plate 5 and the slide member 4 by the elastic force of the elastic member 7, and the slide member 4 is held in contact with the spherical movable contact member 6. Since the inclined surface 4g is provided on the surface and the spherical movable contact member 6 is urged toward the bottom surface of the base 1 by the elastic force of the elastic member 7 by the inclined surface 4g. The movable contact 6 can also increase the contact pressure, and the contact switching between the first stage and the second stage can be performed reliably.

  Further, a guide groove 1f extending along the sliding movement direction of the slide member 4 is provided on the inner bottom surface of the storage portion 1a, and a pair of slopes for slidingly guiding the spherical movable contact member 6 on both sides of the guide groove 1f. Parts 1g and 1g are provided, and are connected to the pair of inclined parts 1g and 1g on the opposing inner surface at a position one step higher than the bottom surface of the guide groove 1f. 3a, the second individual fixed contact 3b is formed to protrude, and the spherical movable contact member 6 slides on the pair of inclined portions 1g, 1g. Since the first individual fixed contact 3a and the second individual fixed contact 3b are in sliding contact with each other, the spherical movable contact member 6 can be reliably brought into contact.

  The cover 8 is made of a flat metal plate, has a substantially rectangular lid portion 8a, a pair of first leg portions 8b and 8b that are bent downward on opposite sides on the front side, and a rear side. And a pair of second leg portions 8c, 8c provided to be bent downward at both ends of the portion. The first leg portions 8b and 8b are provided with L-shaped locking claws 8d and 8d, and the locking claws 8d and 8d are provided on one side surface of the base 1 on the opening 1b side. The second leg portions 8c and 8c are provided with U-shaped locking bars 8e and 8e, and the locking bars 8e and 8e are provided with the opening 1b. The cover 8 is mounted on the upper surface side of the storage portion 1 a of the base 1 by engaging with a pair of engaging protrusions 1 d and 1 d provided on opposite side surfaces in a direction crossing the provided side surface.

Next, the operation of the switch device of the present invention will be described with reference to FIGS.
First, in the initial state shown in FIG. 4, the slide member 4 is urged to the left in the drawing via the drive plate 5 by the elastic force of the elastic member 7. At this time, the spherical movable contact member 6 is pressed against the inclined surface 4g of the slide member 4 through the drive plate 5 by the elastic pressure of the elastic member 7 and is urged downward, and the storage portion 1a is in a state where the contact pressure is generated. It is repressed on both inclined surfaces 1g and 1g of the guide groove 1f formed on the inner bottom surface. In this state, the spherical movable contact member 6 is separated from the common fixed contact 2 and the first and second individual fixed contacts 3a and 3b, and the switch is turned off (see FIG. 6).

Next, when the slide member 4 is pressed to the right as shown in FIG. 7, the slide member 4, the drive plate 5, and the spherical movable contact member 6 move to the right against the urging force of the elastic member 7. The spherical movable contact member 6 slides on the inclined surfaces 1g and 1g of the guide groove 1f, and the common fixed contact 2 and the first individual fixed exposed from the bottom and inner surfaces of the guide groove 1f shown in FIG. The common fixed contact 2 and the first individual movable contact 3a are electrically connected via the spherical movable contact member 6 in contact with the front end side of the side end surface of the contact 3a, and the first-stage switch is turned on.
At this time, the spherical movable contact member 6 is elastically pressed by the common fixed contact 2 and the first individual fixed contact 3a by the pressurized elastic force of the elastic member 7 compressed in accordance with the pressing operation of the slide member 4. Thus, a stable contact pressure can be obtained.

Next, from this state, as shown in FIG. 8, when the slide member 4 is further pressed to the right in the figure, the slide member 4, the drive plate 5, and the spherical movable contact member against the urging force of the elastic member 7. 6 moves rightward, and the spherical movable contact member 6 is a flat plate surface from the side end surface along the inclined portions 2a and 3c provided on the side end surfaces of the common fixed contact 2 and the first individual fixed contact 3a of the guide groove 1f. The spherical movable contact member 6 contacts the second individual fixed contact 3b shown on the right side in FIG. 5 and the second individual movable contact 3b and the common individual fixed contact 2 pass through the spherical movable contact member 6. And the second stage switch is turned on.
At this time, when the spherical movable contact member 6 climbs over the flat plate surface from the side end surfaces of the common fixed contact 2 and the first individual fixed contact 3a and slides on the flat plate surface, A click feeling is generated.

  When the spherical movable contact 6 rides on the flat plate surface from the side end surfaces of the common fixed contact 2 and the first individual fixed contact 3a, the spherical movable contact member 6 slides on the inclined surfaces 1g and 1g of the guide groove 1f. The point (position) that contacts the common fixed contact 2 exposed from the bottom surface and the inner surface of the guide groove 1f shown in FIG. 5 and the front end side of the side end surface of the first individual fixed contact 3a is a spherical movable contact. 6 is set so as to collide with a position below the position of the center point. For this reason, it is easy to get over and a good click feeling can be obtained.

At this time, since the height of the spherical movable contact member 6 changes depending on the step portion, the spherical movable contact member 6 moves upward along the inclined surface 4 g of the slide member 4, but the drive plate 5 drives the slide member 4. The contact pressing portion 5e of the drive plate 5 pressing the spherical movable contact member 6 is slidably moved on the portion 4a, so that the sliding movement direction of the slide member 4 (right side in FIG. 8) Thus, the spherical movable contact member 6 can move upward.
Further, the spherical movable contact member 6 is elastically pressed to the common fixed contact 2 and the second individual fixed contact 3b by the pressurized elastic force of the elastic member 7 compressed in accordance with the pressing operation of the slide member 4. Furthermore, a stable contact pressure can be obtained reliably.

  In the present embodiment, the common fixed contact 2 and the first and second individual fixed contacts 3a and 3b are such that some flat plate surfaces and side end surfaces are exposed from the bottom surface and the inner surface of the guide groove 1f. 1 has a structure in which a flat surface protrudes in a flat shape with a step from the bottom surface (the bottom surface of the guide groove 1f), but is not limited thereto, and the common fixed contact 2 and the first and second contacts are not limited thereto. The flat plate surfaces of the individual fixed contacts 3 a and 3 b may be arranged in a direction perpendicular to the bottom surface of the base 1 so that the spherical movable contact 6 slides on the side end surface.

  According to the above-described embodiment of the present invention, the common fixed contact 2 and the first and second individual fixed contacts 3 a and 3 b protrude from the bottom surface of the base 1 with a part of flat plate surface and side end surfaces protruding from each other. The common fixed contact 2 and the first and second individual fixed contacts 3a and 3b are arranged with their side end surfaces facing each other with a predetermined interval in a direction intersecting the slide direction of the slide member 4. At the same time, the first individual fixed contact 3a and the second individual fixed contact 3b are arranged to face each other at a predetermined interval in the sliding direction of the slide member 4, and the spherical movable contact 6 is moved along with the movement of the slide member 4. Abuts between the side end surfaces of the common fixed contact 2 and the first individual fixed contact 3a, and a first-stage signal is output. As the slide member 4 further moves, the spherical movable contact 6 becomes connected to the common fixed contact 2 and the first fixed contact 2a. Ride on the flat surface of 1 individual fixed contact 3a The second stage signal is output with a click feeling by contacting the second individual fixed contact 3b, and the flat plate of the common fixed contact 2 and the first and second individual fixed contacts 3a, 3b. Since the surface and side end surfaces are formed with a step protruding from the bottom surface of the base 1, the contact step can be easily formed when the first and second contact points are switched, and 2 with a click feeling. A stage switch can be easily formed.

It is a whole perspective view which shows the switch apparatus of this invention. It is a disassembled perspective view which shows the switch apparatus of this invention. It is a top view which shows the state which removed the cover of the switch apparatus of this invention. It is sectional drawing which shows the switch apparatus of this invention. It is a perspective view which shows the base part of the switch apparatus of this invention. It is a top view which shows the arrangement | positioning relationship of the contact part of the switch apparatus of this invention. It is sectional drawing which shows the 1st step | paragraph ON state of the switch apparatus of this invention. It is sectional drawing which shows the 2nd step | paragraph ON state of the switch apparatus of this invention. It is a top view which shows the state of the movable contact piece of the conventional switch apparatus in the neutral position N. It is a top view which shows the state of the movable contact piece of the conventional switch apparatus in 1st position MD. It is a top view which shows the state whose movable contact of the conventional switch apparatus is the 2nd position AD.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1: Base 1a: Storage part 1b: Opening part 1c: Engagement protrusion 1d: Engagement protrusion 1e: Concave groove part 1f: Guide groove 1g: Inclined surface 2: Common fixed contact 2a: Inclined part 2b: Connection terminal 3: Individual Fixed contact 3a: 1st individual fixed contact 3b: 2nd individual fixed contact 3c: Inclined part 3d: Connection terminal 3e: Connection terminal 4: Slide member 4a: Drive part 4b: Operation part 4c: Sliding arm part 4d: Contact holding Part 4e: Engaging convex part 4f: Holding hole part 4g: Inclined surface 5: Driving plate 5a: Substrate part 5b: Wing part 5c: Engaging hole 5d: Spring contact part 5e: Contact pressing part 6: Spherical movable contact member 7: Elastic member 8: Cover 8a: Lid 8b: First leg 8c: Second leg 8d: Locking claw 8e: Locking bar

Claims (5)

  A base on which the common fixed contact and the first and second individual fixed contacts are disposed; a slide member slidably accommodated on the base; and an elastic member that biases the slide member in one direction. A spherical movable contact that contacts the common fixed contact and the first and second individual fixed contacts as the slide member moves, and the common fixed contact and the first and second individual fixed contacts are partially The flat plate surface and the side end surface of the base plate are disposed in a state of projecting from the bottom surface of the base with a step, and the common fixed contact and the first and first contacts are spaced apart from each other in a direction intersecting the slide direction of the slide member. The two individual fixed contacts are arranged with their side end surfaces facing each other, and the first individual fixed contact and the second individual fixed contact are opposed to each other at a predetermined interval in the sliding direction of the slide member. Place the slide part The spherical movable contact abuts between the side end surfaces of the common fixed contact and the first individual fixed contact with the movement of the first stationary signal, and the first stage signal is output, and the spherical movable contact with the further movement of the slide member A contact is run on the flat surface of the common fixed contact and the first individual fixed contact and comes into contact with the second individual fixed contact to output a second stage signal with a click feeling. Switch device.   The base is provided with a guide groove having an inclined surface expanding upward from the bottom surface, and the common fixed contact and the first and second individual contacts are arranged on the opposing inner surfaces at a position one step higher than the bottom surface of the guide groove. A fixed contact is protruded, a first-stage contact portion is formed by the side surfaces of the common fixed contact and the first individual fixed contact, and a second-stage contact is formed by the flat surface of the common fixed contact and the second individual fixed contact. The switch device according to claim 1, wherein a contact portion is formed.   An inclined portion is formed on a side end surface of the common fixed contact that contacts the spherical movable contact and the first individual fixed contact so that an interval gradually facing toward a direction in which the second individual fixed contact is disposed is narrowed. The switch device according to claim 2, wherein the switch device is formed.   4. The switch device according to claim 2, wherein the common fixed contact and the first and second individual fixed contacts have a flat surface on which the spherical movable contact rides as a punching surface at the time of punching.   The slide member is provided with a drive plate that is in contact with one end of the elastic member and movable in the biasing direction of the elastic member, and the spherical movable contact is sandwiched between the slide member and the drive plate. 5. The switch device according to claim 1, wherein the switch member is movably held by the slide member, and the spherical movable contact is biased toward the bottom surface of the base by the elastic force of the elastic member. .

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