JP6284148B2 - Switch device - Google Patents

Description

  The present invention relates to a switch device that can selectively turn on either of two sets of switch elements, and more particularly to a switch device used in a power window device that controls opening and closing of a window of an automobile, for example.

  For example, Patent Document 1 discloses a switch device for a power window device that opens and closes a window glass of a vehicle.

  FIG. 13 is an external perspective view of the in-vehicle switch 111. FIG. 14 is an exploded perspective view of a conventional switch unit 122. FIG. 15 is an enlarged vertical cross-sectional view of a main part of the on-vehicle switch 111. The in-vehicle switch 111 is configured by integrating an operation cover 112 corresponding to the upper and lower sides and a base 113. The operation cover 112 has an upper surface for locking and unlocking the first to fourth switch buttons 114 to 117 for opening and closing corresponding to the windows of various places equipped on the automobile and the opening and closing operation of the windows. The fifth switch button 118 is attached. As shown in FIG. 14, the switch unit 122 includes a switch case 123, movable contacts 124a and 124b, sliders 125a and 125b, slider return springs 126a and 126b, leaf springs 127a and 127b, and a switch cover 128. Consists of The switch cover 128 is provided with slide holes 144a and 144b through which the slide shafts 140a and 140b can protrude.

  As shown in FIG. 15, a slider operating rod 121 that is integrally suspended at the bottom of the button tilts to the left and right with the shaft support portion of the switch buttons 114 to 118 as a fulcrum. Switching operation is performed corresponding to 140a and 140b. The sliders 125a and 125b are normally urged by slider return springs 126a and 126b and are in a neutral OFF position, and are switched from this state to the ON position. In addition, after the sliding operation of the sliders 125a and 125b, the urging force of the slider return springs 126a and 126b is automatically returned to the original position, so that the switching operation becomes extremely easy.

  That is, the switch buttons 114 to 118 can select either the neutral OFF position or the left and right ON contact positions, and the left and right switch elements do not turn ON simultaneously.

  Thus, a switch device that selectively turns on one of the two sets of switch elements is used as a switch device for a power window device for opening and closing a window glass of a vehicle.

JP-A 63-244533

  However, when the sliders 125a and 125b are moved to the on position, there is a problem that a gap is formed between the sliders 125a and 125b, and dust enters from there.

  The present invention solves the above-described problems, and an object thereof is to provide a switch device in which dust does not enter even during an operation of selectively turning on one of two sets of switch elements.

The switch device of the present invention includes a case having an opening on a side wall surface, two sliders housed in the case so as to be horizontally movable in a state in which a part protrudes outward from the opening, Urging means for urging the slider to an initial position substantially at the center of the case; and two sets of switch elements that are driven when the slider is in a separated position moved in a direction against the urging means; A first shielding member that moves along the side wall surface in a state of covering the opening in the entire range from the initial position to the separated position; and A second shielding member is provided, the first shielding member has a first overlap portion, the second shielding member has a second overlap portion, the first overlap portion and the second overlap. It is characterized in that overlap each other with a minute gap in a direction perpendicular to the side wall surface in the initial position. In the switch device of the present invention, the first overlap portion is disposed so that one surface overlaps the side wall surface with a minute gap in a direction perpendicular to the side wall surface, and the other side. The surface is opposed to the second overlap portion, and the second overlap portion has a protruding portion that extends further downward than the lower end of the first overlap portion, and the protruding portion is The first overlap portion protrudes toward the side wall surface along the bottom surface of the lower end, and is opposed to the side wall surface through a minute gap.

According to this structure, since the 1st shielding member and the 2nd shielding member overlapped in the initial position, the length of the shielding member located between each other can be lengthened. Thereby, even if the slider is in the separated position, the opening on the initial position side is surely covered, and dust can be hardly prevented from entering the switch device. Furthermore, the stroke to the separated position can be increased, and the switch element can be driven reliably. Further, according to this configuration, since the shielding members are overlapped in two directions, it is possible to further prevent dust from entering the switch device along the minute gap even when the slider is separated.

  The switch device of the present invention includes a case having an opening on a side wall surface, two sliders housed in the case so as to be horizontally movable in a state in which a part protrudes outward from the opening, Urging means for urging the slider to an initial position substantially at the center of the case; and two sets of switch elements that are driven when the slider is in a separated position moved in a direction against the urging means; A first shielding member that moves along the side wall surface in a state of covering the opening in the entire range from the initial position to the separated position; and A second shielding member is provided, the first shielding member has a first overlap portion, the second shielding member has a second overlap portion, the first overlap portion and the second overlap. It is characterized in that overlap each other with a minute gap in a direction perpendicular to the side wall surface in the initial position. Further, in the switch device according to the present invention, the case and the opening are opened upward, and the two sliders are configured such that the first shielding member and the second shielding member are opened from the outer side of the side wall surface. Inserted into the case and the opening from above so as to cover a portion, and at least the gap between the case, the first shielding member and the second shielding member, and the case and the opening at least above The cover member is provided so that it may cover from.

  According to this structure, since the 1st shielding member and the 2nd shielding member overlapped in the initial position, the length of the shielding member located between each other can be lengthened. Thereby, even if the slider is in the separated position, the opening on the initial position side is surely covered, and dust can be hardly prevented from entering the switch device. Furthermore, the stroke to the separated position can be increased, and the switch element can be driven reliably. In addition, according to this configuration, since the upper part of the case and the opening is opened, it is sufficient to assemble from the top at the time of assembly. According to this configuration, the cover member is later
You can prevent dust from entering.

  In the switch device of the present invention, the first shielding member and the second shielding member are integrally formed with an operating shaft for transmitting an external driving force to the slider. .

  According to this configuration, since the operation shaft is provided on the shielding member having a large area, the degree of freedom in the arrangement and size of the operation shaft is increased.

  According to the present invention, since the first shielding member and the second shielding member overlap each other at the initial position, the length of the shielding member positioned between them can be increased. Thus, the opening on the initial position side is reliably covered even when the slider is in the separated position, and dust can be prevented from entering the switch device. Therefore, it is possible to provide a switch device in which dust does not enter even during an operation of selectively turning on one of the two sets of switch elements.

It is a perspective view which shows the switch apparatus of embodiment of this invention. It is a disassembled perspective view which shows the switch apparatus of embodiment of this invention. It is a top view which shows the switch apparatus of embodiment of this invention. It is a front view which shows the switch apparatus of embodiment of this invention. It is sectional drawing cut | disconnected by the VV line | wire of FIG. It is sectional drawing cut | disconnected by the VI-VI line of FIG. It is sectional drawing cut | disconnected by the VII-VII line of FIG. It is explanatory drawing which shows the initial state of 2 sets of switch elements of a switch apparatus. It is explanatory drawing which shows the separation position of the 1st switch element of a switch apparatus. It is explanatory drawing which shows the separation position of the 2nd switch element of a switch apparatus. It is explanatory drawing which shows the slider in the separation position of the 1st switch element of a switch apparatus. It is explanatory drawing which shows the slider in the separation position of the 2nd switch element of a switch apparatus. It is an external appearance perspective view of the conventional vehicle-mounted switch. It is a disassembled perspective view of the conventional switch unit. It is a principal part expanded vertical sectional view of the vehicle-mounted switch of FIG.

[First Embodiment]
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. For easy understanding, the dimensions of the drawings are appropriately changed.

  FIG. 1 is a perspective view showing a switch device 1 according to an embodiment of the present invention. FIG. 2 is an exploded perspective view showing the switch device 1. FIG. 3 is a plan view showing the switch device 1. FIG. 4 is a front view showing the switch device 1. 5 is a cross-sectional view taken along line VV in FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. FIG. 8 is an explanatory diagram showing an initial state of two sets of switch elements (first switch element 71 and second switch element 72) of the switch device 1. FIG. 9 is an explanatory diagram showing the separation position P3 of the first switch element 71 of the switch device 1. FIG. FIG. 10 is an explanatory diagram showing the separation position P4 of the second switch element 72 of the switch device 1. FIG. FIG. 11 is an explanatory diagram showing the slider 10 at the separation position P3 of the first switch element 71 of the switch device 1. FIG. FIG. 12 is an explanatory view showing the slider 20 at the separation position P4 of the second switch element 72 of the switch device 1. FIG.

  The switch apparatus 1 of this embodiment is provided with the case 60, the cover member 68, and the connection terminal 50, as shown in FIGS. Further, as shown in FIG. 2, the switch device 1 includes a slider 10 and a slider 20 disposed in the housing space of the case 60, a first switch element 71 driven by the slider 10, and a first driven by the slider 20. Two switch elements 72. In the following description, the Z1 side in FIG. 1 is the upper side, and the Z2 side is the lower side. In addition, it is not limited to this expression, The attachment direction of the switch apparatus 1 is not restrict | limited.

  The case 60 is formed by molding synthetic resin, and the connection terminals 50 made of conductive metal are integrally formed by insert molding. The case 60 has a box shape with the top opened, and the inside forms a housing space. Openings 61 and 62 are provided in the side wall surface 65 of the case 60. The openings 61 and 62 are open at the top. As shown in FIG. 2, the connection terminal 50 is divided into connection terminals 51, 52, 53, 54, and 55. One end side of the connection terminals 51, 52, 53, 54, 55 is exposed to the outside of the case 60, and the other end side of the connection terminals 51, 52, 53, 54, 55 is in an accommodation space formed in the case 60. Exposed. The connection terminals 51, 52, 53, 54, and 55 are not limited to insert molding, and may be integrated by press-fitting.

  The cover member 68 is made of a metal plate and covers the upper side (Z1 side) of the case 60. The cover member 68 is fixed with the fitting portion 68 a engaging the protrusion 60 a of the case 60. In the accommodation space formed inside the case 60 covered with the cover member 68, two sets of switch elements (first switch element 71 and second switch element 72) having the other end of the connection terminal 50 as a fixed contact. And two sliders (slider 10 and slider 20) housed so as to be horizontally movable.

  As shown in FIG. 5, the first switch element 71 has fixed contact portions 51 a, 53 a, 54 a and a movable contact member 31. On the other hand, the second switch element 72 includes fixed contact portions 52 a, 53 a, 55 a and a movable contact member 32. The fixed contact portion 53 a is a component common to the first switch element 71 and the second switch element 72. As shown in FIG. 2, the fixed contact portions 51 a, 52 a, 53 a, 54 a and 55 a are the other end side of the connection terminal 50.

  The movable contact members 31 and 32 are made of a conductive metal and are each bent into a W shape. The movable contact member 31 is rotatable so as to contact the fixed contact portion 51a or the fixed contact portion 53a with the fixed contact portion 54a as a fulcrum. On the other hand, the movable contact member 32 is rotatable so as to contact the fixed contact portion 52a or the fixed contact portion 53a with the fixed contact portion 55a as a fulcrum (see FIGS. 9 and 10).

  The slider 10 and the slider 20 are members formed from synthetic resin. The slider 10 is a driving member for rotating the movable contact member 31 to bring the contacts into and out of contact with each other, and is housed in the housing space of the case 60 so as to be horizontally movable in the X1-X2 direction. The slider 20 is a driving member for rotating the movable contact member 32 so as to contact and separate the contacts, and is housed in the housing space of the case 60 so as to be horizontally movable in the X1-X2 direction.

  Hereinafter, the configurations of the slider 10 and the slider 20 will be described.

  The slider 10 includes a first shielding member 11, a first slide member 13, a first operation shaft 14, and a sliding member 15. The slider 10 is disposed such that the first slide member 13 is disposed in the housing space of the case 60, and the first shielding member 11 protrudes from the opening 61 of the case 60 and covers the opening 61 from the outer side of the side wall surface 65. Has been. The first shielding member 11 has a first overlap portion 12. Furthermore, a first operating shaft 14 for transmitting a driving force from the outside to the slider 10 is integrally formed on the first shielding member 11. Since the first shielding member 11 has a large area, there are few restrictions on the arrangement and size of the first operating shaft 14. Note that the first shielding member 11, the first slide member 13, and the first operation shaft 14 may be individually molded and then integrated by fitting. Further, the sliding member 15 is inserted into a through hole provided in the first slide member 13.

  The slider 20 includes a second shielding member 21, a second slide member 23, a second operation shaft 24, and a sliding member 25. The slider 20 is disposed such that the second slide member 23 is disposed in the housing space of the case 60, and the second shielding member 21 projects from the opening 62 of the case 60 and covers the opening 62 from the outer side of the side wall surface 65. Has been. The second shielding member 21 has a second overlap portion 22. Further, a second operating shaft 24 for transmitting a driving force from the outside to the slider 20 is integrally formed on the second shielding member 21. Since the second shielding member 21 has a large area, there are few restrictions on the arrangement and size of the second operation shaft 24. Note that the second shielding member 21, the second slide member 23, and the second operation shaft 24 may be individually molded and then integrated by fitting. Further, the sliding member 25 is inserted into a through hole provided in the second sliding member 23.

  As shown in FIG. 6, the first overlap portion 12 is disposed so that one surface 12 a overlaps the side wall surface 65 with a small gap in a direction perpendicular to the side wall surface 65 and the other surface. 12 b faces the surface 22 a of the second overlap portion 22. On the other hand, the second overlapping portion 22 of the second shielding member 21 is provided with a protruding portion 27 that protrudes further downward than the lower end 12 c of the first overlapping portion 12. As shown in FIG. 6, the protruding portion 27 protrudes toward the side wall surface 65 along the bottom surface of the lower end 12 c of the first overlap portion 12, and faces the side wall surface 65 through a minute gap.

  Further, a cover member 68 is provided so as to cover the gap between the case 60, the first shielding member 11 and the second shielding member 21, and the case 60 and the openings 61 and 62. Thereby, the cover member 68 covers the upper side (Z1 side) of the first overlap portion 12.

  A leaf spring 40 is disposed in the housing space formed in the case 60 as urging means for urging the slider 10 and the slider 20 toward the X1 side or the X2 side. As shown in FIG. 5, the leaf spring 40 is disposed so as to contact the sliding member 15 of the slider 10 and the sliding member 25 of the slider 20. The leaf spring 40 urges the slider 10 and the slider 20 to the initial positions P1 and P2 at substantially the center of the case 60 (see FIG. 8).

  Next, operation | movement of the switch apparatus 1 of this embodiment is demonstrated.

  A state in which the first operating shaft 14 is driven will be described with reference to FIGS. The connection terminal 50 is connected and fixed to a substrate (not shown). An operation member (not shown) is inserted between the first operation shaft 14 and the second operation shaft 24, and the first operation shaft 14 or the second operation shaft 24 is driven in the X1-X2 direction via the operation member. The

  The sliding member 15 is also in contact with the movable contact member 31, and the movable contact member 31 is held in the initial state at the initial position P1. The fixed contact portion 53a at the center is a normally closed terminal that is turned on at the initial position P1 and turned off at the separated position P3. On the other hand, the fixed contact portion 51a is a normally open terminal that is turned off at the initial position P1 and turned on at the separated position P3. As shown in FIG. 9, when the first operating shaft 14 is moved by an external driving force, the sliding member 15 moves against the urging force of the leaf spring 40, and is fixed to the movable contact member 31 at the separation position P3. The contact portion 51a comes into contact. As a result, the first switch element 71 is driven.

  Similarly, the state in which the second operating shaft 24 is driven will be described with reference to FIGS.

  The sliding member 25 is also in contact with the movable contact member 32, and the movable contact member 32 is held in the initial state at the initial position P2. The fixed contact portion 53a at the center is a normally closed terminal that is turned on at the initial position P2 and turned off at the separated position P4. On the other hand, the fixed contact portion 52a is a normally open terminal that is turned off at the initial position P1 and turned on at the separated position P4. As shown in FIG. 10, when the second operating shaft 24 is moved by an external driving force, the sliding member 25 moves against the urging force of the leaf spring 40, and is fixed to the movable contact member 32 at the separation position P4. The contact portion 52a comes into contact. As a result, the second switch element 72 is driven.

  When used as a switch device for a power window device for opening and closing a window glass of a vehicle, a motor for opening and closing the window glass to the electric wiring connected to the first switch element 71 and the second switch element 72 Is connected. Terminals for rotating the motor are configured such that one is on the power supply side and the other is on the ground side, and the direction of rotation is switched when connected in reverse. When one of the normally open terminals of the first switch element 71 and the second switch element 72 is selectively driven (turned on), if the other is normally closed, the motor side power supply side, ground side The connection can be switched, and the motor can be rotated forward or backward.

  Next, a configuration that can prevent dust from entering the switch device 1 of the present embodiment will be described.

  At the initial positions P1 and P2, the slider 10 and the slider 20 have a first overlap portion 12 of the first shielding member 11 and a second overlap portion 22 of the second shielding member 21, as shown in FIG. They overlap each other with a minute gap in a direction perpendicular to the side wall surface 65. According to this configuration, since the first shielding member 11 and the second shielding member 21 overlap each other at the initial positions P1 and P2, the length of the shielding member positioned between them can be increased.

  As shown in FIG. 6, the first overlap portion 12 is disposed so that one surface 12 a overlaps the side wall surface 65 with a small gap in a direction perpendicular to the side wall surface 65 and the other surface. 12 b faces the surface 22 a of the second overlap portion 22. Further, as shown in FIG. 6, the second overlap portion 22 is provided with a protruding portion 27 that protrudes further downward than the lower end 12 c of the first overlap portion 12. The protruding portion 27 protrudes toward the side wall surface 65 along the bottom surface of the lower end 12c of the first overlap portion 12, and faces the side wall surface 65 through a minute gap. Thereby, the 1st shielding member 11 and the 2nd shielding member 21 overlap in two directions, Y1-Y2 direction and Z1-Z2 direction.

  As shown in FIG. 11, when the first operating shaft 14 is driven, the sliding member 15 moves to the separation position P3. Even at the separation position P3, part of the first overlap portion 12 and the second overlap portion 22 is moved. Face each other through a minute gap. Further, the protrusion 27 of the second overlap portion 22 prevents a gap from being formed on the Z2 side in FIG.

  As shown in FIG. 12, when the second operating shaft 24 is driven, the sliding member 25 moves to the separation position P4. However, the first overlap portion 12 and a part of the second overlap portion 22 also at the separation position P4. Face each other through a minute gap. Even in this case, the protrusion 27 of the second overlap portion 22 prevents a gap from being formed on the Z2 side.

  As a result, the opening portions 61 and 62 are covered even when the slider 10 and the slider 20 are on the initial positions P1 and P2 side, or on the separation positions P3 and P4 side, so that almost no dust can enter the switch device 1. it can. Further, since the shielding member is overlapped in two directions of the Y1-Y2 direction and the Z1-Z2 direction by providing the protruding portion 27, the slider 10 and the slider 20 are switched along the minute gap even at the separation positions P3 and P4. It is possible to further prevent dust from entering the apparatus 1.

  Furthermore, in this embodiment, the case 60 and the openings 61 and 62 are opened upward, and the two sliders 10 and 20 are inserted into the housing space and the openings 61 and 62 of the case 60 from above (Z1 side). can do. As shown in FIG. 6, the cover member 68 is provided so as to cover the gap between the case 60, the first shielding member 11, and the second shielding member 21, and the case 60 and the openings 61 and 62. .

  Since the upper part of the case 60 and the openings 61 and 62 is opened, it is sufficient to assemble from the top when assembling, so that the assemblability is good. By attaching the cover member 68 later, the upper part is almost blocked and dust can be prevented from entering the switch device 1.

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

  The switch device 1 according to the present embodiment is housed in a case 60 having openings 61 and 62 on a side wall surface 65 and horizontally movable in the case 60 with a part protruding outward from the openings 61 and 62. And two sliders (slider 10 and slider 20). Then, a leaf spring 40 that urges the slider 10 and the slider 20 to initial positions P1 and P2 at substantially the center of the case 60, and a separation position P3 and P4 where the slider 10 and the slider 20 have moved in a direction against the leaf spring 40, respectively. 2 sets of the first switch element 71 and the second switch element 72 which are driven when in The slider 10 and the slider 20 include a first shielding member 11 and a second shield member 11 that move along the side wall surface 65 while covering the openings 61 and 62 in the entire range from the initial positions P1 and P2 to the separation positions P3 and P4. The shielding member 21 is provided, the first shielding member 11 has the first overlap portion 12, and the second shielding member 21 has the second overlap portion 22. The first overlap portion 12 and the second overlap portion 22 overlap each other with a minute gap in a direction perpendicular to the side wall surface 65 at the initial position P1.

  According to this configuration, since the first shielding member 11 and the second shielding member 21 overlap each other at the initial positions P1 and P2, the length of the shielding member positioned between them can be increased. Thereby, even if the slider 10 and the slider 20 are separated positions P3 and P4, the openings 61 and 62 on the initial positions P1 and P2 side are surely covered, and it is possible to almost prevent dust from entering the switch device 1. Furthermore, the stroke to the separation positions P3 and P4 can be increased, and the first switch element 71 and the second switch element 72 can be driven reliably.

  In the switch device 1 of the present embodiment, the first overlap portion 12 is disposed so that one surface 12a overlaps the side wall surface 65 with a small gap in a direction perpendicular to the side wall surface 65. The other surface 12 b faces the second overlap portion 22. The second overlap portion 22 is extended with a protrusion 27 that protrudes further downward than the lower end 12 c of the first overlap portion 12, and the protrusion 27 corresponds to the lower end 12 c of the first overlap portion 12. It protrudes to the side wall surface 65 side along the bottom surface and faces the side wall surface 65 through a minute gap.

  According to this configuration, the first shielding member 11 and the second shielding member 21 are overlapped in two directions, so that the slider 10 and the slider 20 are separated in the switch device 1 along the minute gap even at the separation positions P3 and P4. Can be further prevented.

  In the switch device 1 of the present embodiment, the first shielding member 11 is integrally formed with a first operating shaft 14 for transmitting a driving force from the outside to the slider 10. Since the first operating shaft 14 is provided on the first shielding member 11 having a large area, the degree of freedom in the arrangement and size of the first operating shaft 14 is increased.

  Similarly, a second operating shaft 24 for transmitting a driving force from the outside to the slider 20 is integrally formed on the second shielding member 21. Since the second operating shaft 24 is provided on the second shielding member 21 having a large area, the degree of freedom in arrangement and size of the second operating shaft 24 is increased.

  Moreover, in the switch apparatus 1 of this embodiment, the case 60 and the opening parts 61 and 62 are open | released upwards. The slider 10 and the slider 20 are inserted into the case 60 and the openings 61 and 62 from above so that the first shielding member 11 and the second shielding member 21 cover the openings 61 and 62 from the outer side of the side wall surface 65. ing. A cover member 68 is provided so as to cover the gap between the case 60, the first shielding member 11, and the second shielding member 21, and the case 60 and the openings 61 and 62 at least from above.

  Since the upper part of the case 60 and the openings 61 and 62 is opened, it is sufficient to assemble from the top when assembling, so that the assemblability is good. According to this configuration, it is possible to prevent dust from entering the switch device 1 by attaching the cover member 68 later.

  As described above, the switch device 1 according to the embodiment of the present invention has been specifically described. However, the present invention is not limited to the above-described embodiment, and various modifications may be made without departing from the spirit of the present invention. Is possible. For example, the present invention can be modified as follows, and these also belong to the technical scope of the present invention.

  (1) In the present embodiment, the first shielding member 11 and the second shielding member 21 that cover the openings 61 and 62 of the side wall surface 65 and the one end side of the connection terminal 50 are on the Y1 side. It is not limited to. For example, you may change so that the one end side of the connection terminal 50 may be exposed to the Y2 side of the case 60. FIG. Moreover, the board | substrate which is not shown in figure may be comprised so that it may connect not on the Z2 side but on the Y2 side, for example.

  (2) In the present embodiment, the leaf spring 40 is used as the biasing means, but it may be a leaf spring divided into the first switch element 71 side and the second switch element 72 side. Further, the direction of the leaf spring 40 may be reversed upside down. A coil spring may be used instead of the leaf spring.

  (3) The movable contact members 31 and 32 are not limited to the shape of the present embodiment, and may be, for example, a sliding contact structure.

DESCRIPTION OF SYMBOLS 1 Switch apparatus 10, 20 Slider 11 1st shielding member 12 1st overlap part 12a One surface 12b The other surface 12c Lower end 13 1st slide member 14 1st operating shaft 15,25 Sliding member 21 2nd shielding member 22 Second overlap portion 22a Surface 23 Second slide member 24 Second operation shaft 27 Projection portion 31, 32 Movable contact member 50, 51, 52, 53, 54, 55 Connection terminal 51a, 52a, 53a, 54a, 55a Fixed contact Portion 60 Case 60a Protruding portion 61, 62 Opening 65 Side wall surface 68 Cover member 68a Fitting portion 71 First switch element 72 Second switch element

Claims (3)

A case having an opening on the side wall surface;
Two sliders housed in the case so as to be horizontally movable in a state where a part protrudes outward from the opening;
Urging means for urging the two sliders to an initial position substantially in the center of the case;
Two sets of switch elements that are driven when the slider is in a separated position moved in a direction against the biasing means;
A switch device comprising:
The two sliders are provided with a first shielding member and a second shielding member that move along the side wall surface in a state of covering the opening in the entire range from the initial position to the separated position,
The first shielding member has a first overlap portion, the second shielding member has a second overlap portion,
The first overlap portion and the second overlap portion is Tsu case overlap each other with a small gap in the direction perpendicular to the side wall surface at said initial position,
The first overlap portion is disposed so that one surface overlaps the side wall surface with a small gap in a direction perpendicular to the side wall surface, and the other surface is the second overlap portion. Opposite,
In the second overlap portion, a protruding portion that protrudes further downward than the lower end of the first overlap portion is extended,
The said protrusion part protrudes in the said side wall surface side along the bottom face of the said lower end of the said 1st overlap part, and is facing the said side wall surface through a micro gap. Switch device.   A case having an opening on the side wall surface;
  Two sliders housed in the case so as to be horizontally movable in a state where a part protrudes outward from the opening;
  Urging means for urging the two sliders to an initial position substantially in the center of the case;
  Two sets of switch elements that are driven when the slider is in a separated position moved in a direction against the biasing means;
  A switch device comprising:
  The two sliders are provided with a first shielding member and a second shielding member that move along the side wall surface in a state of covering the opening in the entire range from the initial position to the separated position,
  The first shielding member has a first overlap portion, the second shielding member has a second overlap portion,
  The first overlap portion and the second overlap portion overlap each other with a minute gap in a direction perpendicular to the side wall surface at the initial position,
  The case and the opening are opened upward;
  The two sliders are inserted into the case and the opening from above so that the first shielding member and the second shielding member cover the opening from the outer side of the side wall surface,
  A switch device, wherein a cover member is provided so as to cover at least the gap between the case, the first shielding member, and the second shielding member, and the case and the opening from above.   3. The operation shaft for transmitting an external driving force to the slider is integrally formed on the first shielding member and the second shielding member. 4. Switch device.