JP2018045970A - Switch gear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a switch gear which enables downsizing of a substrate, compared to a structure where a plate-like member moves in a rotation axis direction while rotating, in a structure where the plate-like member is moved to switch its state between a conduction state and a non-conduction state.SOLUTION: A switch gear 10 has a substrate 12, a contact plate 96 and a holder 78. In the substrate 12, a teeth part 44 and contact parts 54C are arranged side by side. The contact plate 96 is housed in the substrate 12, a through hole 97A is formed at a portion of the contact plate 96 which faces the teeth part 44, and contact parts 98 are provided at portions of the contact plate 96 which face the contact parts 54C. The holder 78 includes a shaft part 78A, an extending part 78B, and a teeth part 78C. The shaft part 78A moves to a side away from the teeth part 44 while rotating at the inner side of the through hole 97A. The shaft part 78A is inserted into a through hole 87A and rotatably provided at the substrate 12. The extending part 78B supports a periphery edge part 99. The teeth part 78C is formed at the extending part 78B and meshes with the teeth part 44.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a switch device.

  In the switch device of Patent Document 1, a holder provided on a base body having a fixed contact is configured to move in the axial direction while rotating. The holder is fitted in a hole in a diamond-shaped contact plate having a movable contact. As a result, when the holder rotates, the contact plate rotates, the movable contact is displaced from the fixed contact, and the power supply is shut off.

Japanese Patent No. 4589414

  In the configuration of Patent Document 1, since the contact plate is a rhombus, the contact plate and the substrate are in contact with each other when the holder is rotated unless a circular moving region having a diameter in the longitudinal direction of the rhombus is secured. Thus, the rotation of the contact plate is restricted. For this reason, the size of the substrate must be a size including the moving region of the contact plate, and an extra moving region is required for the substrate as compared with the size of the contact plate. In other words, there is room for improvement in reducing the size of the base body of the switch device.

  The present invention provides a switch capable of reducing the size of a base in a configuration in which a plate-like member is moved to switch between a conductive state and a non-conductive state as compared with a configuration in which the plate-like member moves in the direction of the rotation axis while rotating. The purpose is to obtain a device.

  The switch device according to the first aspect includes a base body in which a first tooth portion and a first contact are arranged at the bottom, and is accommodated in the base body so as to face the first tooth portion and the first contact, and the first tooth portion A plate-like member in which a through hole is formed in a portion opposite to the first contact, a second contact that can contact the first contact is provided in a portion opposite to the first contact, and the substrate is inserted into the through hole and rotated to the base A shaft portion that is provided, a support portion that extends from the shaft portion in a direction intersecting the rotation axis direction, and that supports the peripheral portion of the through-hole, and is formed on the support portion and meshes with the first tooth portion. And a moving member that moves to the side away from the first tooth portion along the rotation axis direction while rotating inside the through hole.

  In the switch device according to the first aspect, the first tooth portion and the second tooth portion mesh with each other, whereby the first contact of the base and the second contact of the plate-like member come into contact and become conductive. On the other hand, when the moving member is rotated, the meshing state of the first tooth portion and the second tooth portion is released, and the teeth of the second tooth portion ride on the teeth of the first tooth portion, and the moving member Moves in the direction of the rotation axis. Thereby, since the plate-like member supported by the support part of the moving member is moved along the rotation axis direction, the contact state between the first contact and the second contact is released and the non-conduction state is established.

  Here, the shaft portion of the moving member moves to the side away from the first tooth portion along the rotation axis direction while rotating inside the through hole of the plate-like member. That is, since the contact in the rotation direction with the moving member is suppressed when the moving member rotates around the rotation axis, the plate-like member moves in the rotation axis direction without being substantially rotated. As a result, it is not necessary to secure a movement area (a space necessary for rotation) of the plate-like member on the substrate, so that the substrate is downsized compared to the configuration in which the plate-like member moves in the direction of the rotation axis while rotating. can do.

  The switch device according to the second aspect is provided with one urging member that urges the plate-like member toward the first contact, with the shaft portion being inserted through the shaft center portion.

  In the switch device according to the second aspect, one urging member is disposed outside the shaft portion by inserting the shaft portion through the shaft center portion of the urging member. One biasing member biases the plate-shaped member toward the first contact. As a result, the urging members through which the shaft portion is not inserted have different urging forces from acting on the plurality of portions of the plate-like member as compared with the configuration provided around the shaft portion. Can be suppressed.

  In at least one of the base and the plate-like member of the switch device according to the third aspect, a restricting portion for restricting the rotation of the plate-like member around the shaft portion is provided.

  In the switch device according to the third aspect, even if the shaft portion of the moving member and the peripheral edge portion of the through hole of the plate-like member are brought into contact with each other, the restricting portion causes the plate-like member to rotate around the shaft portion. Is regulated. Thereby, it can control that the position of the 2nd contact shifts from the position facing the 1st contact.

  The restriction portion of the switch device according to the fourth aspect includes a protrusion that protrudes from the base toward the plate member and extends along the rotation axis direction, and is formed on the plate member and contacts the protrusion. And a guided portion that regulates rotation of the plate-like member and is guided in the direction of the rotation axis.

  In the switch device according to the fourth aspect, the rotation of the plate member is restricted by the contact between the protruding portion of the base and the guided portion of the plate member. Here, when the plate-like member is assembled to the base, the first contact and the second contact are opposed to each other by arranging the guided portion according to the position of the protruding portion. In the assembling work of the members, it is possible to suppress the plate-like member from being in an incorrect assembled state.

  As described above, according to the present invention, in the configuration in which the plate-shaped member is moved to switch between the conductive state and the non-conductive state, the substrate is smaller than the configuration in which the plate-shaped member moves in the rotation axis direction while rotating. It has an excellent effect of being able to

It is a longitudinal section showing the whole switch device composition concerning this embodiment. It is a disassembled perspective view of the switch apparatus which concerns on this embodiment. It is a disassembled perspective view of the switch apparatus which concerns on this embodiment. It is a top view which shows the internal structure of the insulator which concerns on this embodiment. (A) It is a top view of the holder which concerns on this embodiment. (B) It is a front view of the holder which concerns on this embodiment. (C) It is a top view of the contact plate which concerns on this embodiment. (D) It is a bottom view of the contact plate which concerns on this embodiment. (A) It is a longitudinal cross-sectional view which shows the non-conduction state of the switch apparatus which concerns on this embodiment. (B) It is a longitudinal cross-sectional view which shows the conduction | electrical_connection state of the switch apparatus which concerns on this embodiment. (A) It is explanatory drawing which shows the position of the holder and contact plate in the non-conduction state of the switch apparatus concerning this embodiment. (B) It is explanatory drawing which shows the position of the holder and contact plate in the conduction | electrical_connection state of the switch apparatus which concerns on this embodiment.

  An example of the switch device according to the present embodiment will be described.

  FIG. 1 shows a switch device 10. As an example, the switch device 10 is used as a disconnect switch device for cutting off a power supply (not shown) of an industrial vehicle. The switch device 10 includes a base 12, a fixed terminal part 50 provided on the base 12, a rotating part 70 that rotates with respect to the base 12, a moving contact part 90 that moves by the rotation of the rotating part 70, and a rotating part 70. And a key 102 for rotating the key.

  In the following description, the axial direction of the rotation axis K of the rotating unit 70 is referred to as the Z direction. A direction orthogonal to the rotation axis K and opposed to a circular arc portion 33B (see FIG. 4) of an insulator 32 described later is referred to as an X direction. Furthermore, a direction orthogonal to the Z direction and the X direction is referred to as a Y direction.

<Substrate>
The base 12 includes a main body 20 and a cover 60 that covers the main body 20. In addition, the base 12 accommodates a contact plate 96 of the moving contact portion 90 described later so as to be movable between a conductive position and a non-conductive position.

(Main body)
As shown in FIG. 2 and FIG. 3, the main body 20 includes an insulator 32, a mounting plate 34, and an O-ring 36 as an example.

  As shown in FIG. 3, the insulator 32 is made of an electrically insulating resin. Moreover, the insulator 32 is formed in the bottomed cylinder shape opened to the one side of the Z direction. Specifically, the insulator 32 has a bottom wall 32A, a side wall 32B, a flange 32C, and a partition wall 32D. In the following description, one side where the insulator 32 in the Z direction opens is referred to as the upper side, and the other side closed is referred to as the lower side.

  As shown in FIG. 4, the bottom wall 32A is an example of a bottom portion, and a pair of linear portions that are 180 degrees opposite to the rotation axis K as viewed in the Z direction, and the linear portions. Are formed in a so-called double D-cut shape having a pair of arc-shaped portions that are continuous with each other.

  As shown in FIG. 1, one end portion and the other end portion in the X direction of the bottom wall 32 </ b> A are respectively provided with an upper protruding portion 38 that protrudes upward in the Z direction and a lower protruding portion 42 that protrudes downward. Each part is formed. Further, a tooth portion 44 protruding upward in the Z direction is formed at the center portion in the X direction of the bottom wall 32A. Details of the upper raised portion 38, the lower raised portion 42, and the tooth portion 44 will be described later.

  The side wall 32B shown in FIG. 4 is a cylindrical wall that stands upright in the Z direction from the outer peripheral portion of the bottom wall 32A. Specifically, the side wall 32B includes a pair of flat surface portions 33A following the outer shape of the bottom wall 32A, a pair of arc portions 33B, a widened portion 33C formed in a part of the flat surface portion 33A, and the rotation axis K side. And a projecting portion 33D projecting from the surface. As described above, the pair of arc portions 33B is disposed on a virtual circle (not shown) centered on the rotation axis K and faces the X direction. The pair of flat surface portions 33A are opposed to the Y direction by connecting both ends of the pair of arc portions 33B in the Y direction in the X direction. The widened portion 33C is a portion that is widened in an arc shape from the central portion in the X direction of the flat portion 33A to the outside in the Y direction from the flat portion 33A.

  As an example, the protruding portion 33D is formed at one of the four portions connecting the pair of flat surface portions 33A and the pair of arc portions 33B. Further, the protruding portion 33D protrudes from the flat surface portion 33A and the circular arc portion 33B to the rotation axis K side, and includes a protruding portion formed in an L shape when viewed in the Z direction. Furthermore, the protrusion 33D extends along the Z direction, which is the axial direction of the rotation axis K.

  The flange 32C is a plate-like portion that extends from the upper end portion in the Z direction on the side wall 32B toward the opposite side (outer side) from the rotation axis K side and has the Z direction as the thickness direction. Further, as an example, the flange 32C extends longer in the Y direction than in the X direction. In the flange 32C, two through holes 35 are formed on one side and the other side in the Y direction. The through hole 35 has a size that allows the shaft portion of the rivet 45 (see FIG. 2) to be inserted, and penetrates the flange 32C in the Z direction.

  An extending portion 32E is formed on the upper surface in the Z direction of the flange 32C. The extending part 32E is a part where the side wall 32B extends upward in the Z direction from the flange 32C. In addition, the outer shape of the extending portion 32E is circular when viewed in the Z direction. This circular portion has an L-shaped cross section when viewed in the circumferential direction, and is a step portion 32F having the Z direction as the height direction.

  Furthermore, a pair of bosses 37 are formed on both ends of the flange 32C outside the extending portion 32E in the Y direction and at the center in the X direction so as to stand upright from the flange 32C in the Z direction. As an example, one boss 37 is formed at one end and the other end in the Y direction. The boss 37 is formed in a cylindrical shape having the Z direction as an axial direction.

  As shown in FIG. 1, the partition wall 32 </ b> D is a plate-like portion extending along the YZ plane from the lower surface in the Z direction on the bottom wall 32 </ b> A to the lower side. In addition, the partition wall 32D is disposed substantially at the center in the X direction of the bottom wall 32A, and divides the space below the bottom wall 32A into one side and the other side in the X direction. Further, the partition wall 32D isolates two lower raised portions 42 described later.

  The upper protruding portion 38 protrudes in a quadrangular prism shape with the Z direction as the axial direction on the upper side in the Z direction from the upper surface of the bottom wall 32A on the inner side (rotation axis K side) than the side wall 32B. In other words, a step is formed on the rotation axis K side in the X direction of the upper raised portion 38. The height of the upper raised portion 38 in the Z direction is lower than the height of the side wall 32B in the Z direction. The side of the upper raised portion 38 opposite to the rotation axis K side in the X direction is connected to the side wall 32B.

  The lower bulge portion bulges in a columnar shape with the Z direction as the axial direction on the lower side of the Z direction from the lower surface of the bottom wall 32A on the inner side (rotation axis K side) than the side wall 32B. Thereby, a step is formed on the outer periphery of the lower raised portion 42. In other words, a lower bulging portion 42 that bulges downward from the base 12 in the Z direction is formed at a portion of the base 12 in which an embedding portion 54 described later is embedded. The lower raised portion 42 is an example of a raised portion.

  The height of the lower raised portion 42 in the Z direction is lower than the height of the partition wall 32D in the Z direction. The central axis passing through the center of the circle of the lower raised portion 42 along the Z direction and the central axis passing through the center of the quadrilateral of the upper raised portion 38 along the Z direction coincide with each other. That is, the upper raised portion 38 and the lower raised portion 42 are arranged coaxially in the Z direction. When the lower raised portion 42 is viewed in the Z direction, the circular outer peripheral portion is referred to as an outer edge portion 42A (see FIG. 3).

  The upper bulging portion 38 and the lower bulging portion 42 have the same configuration on one side and the other side in the X direction. For this reason, in the following description, the upper raised portion 38 and the lower raised portion 42 on one side in the X direction will be described, and the description of the upper raised portion 38 and the lower raised portion 42 on the other side will be omitted.

  Here, in the bottom wall 32A, a part of the terminal member 52 described later is insert-molded at a portion from the lower surface of the lower raised portion 42 to the upper surface of the upper raised portion 38. In other words, a space portion 43 (see FIG. 1) in which a part of the terminal member 52 is inserted is formed in a portion from the lower surface of the lower bulge portion 42 to the upper surface of the upper bulge portion 38. ing.

  As shown in FIG. 4, the tooth portion 44 is an example of a first tooth portion, and has a substantially trapezoidal shape from the upper surface of the bottom wall 32 </ b> A to the upper side in the Z direction between the two upper raised portions 38 aligned in the X direction. The three teeth 44A are protruded. The three teeth 44A are arranged along a virtual circle (not shown) centered on the rotation axis K at intervals of 120 degrees in the circumferential direction of the virtual circle. Further, the height of the upper surface in the Z direction of the three teeth 44 </ b> A is substantially the same as the height of the upper surface of the upper raised portion 38 in the Z direction. On the rotation axis K side (inner side) of the three teeth 44 </ b> A, a hole 46 that is recessed toward the bottom wall 32 </ b> A with the rotation axis K as the central axis is formed. The hole 46 is formed in a circular shape centered on the rotation axis K when viewed in the Z direction.

  As an example, the mounting plate 34 shown in FIG. 3 is made of a stainless steel plate, and spreads along the XY plane with the Z direction as the thickness direction. Further, the size of the mounting plate 34 is made smaller than the size of the flange 32C when viewed in the Z direction. Furthermore, a through hole 34 </ b> A that penetrates the mounting plate 34 in the Z direction is formed at the center of the mounting plate 34. The size of the through hole 34A is set such that the side wall 32B of the insulator 32 can be inserted in a non-contact manner with the through hole 34A. In addition, a through-hole 34B through which the rivet 45 is inserted in the Z direction is formed at the peripheral edge of the through-hole 34A in the mounting plate 34.

  The O-ring 36 shown in FIG. 2 is a rubber seal material formed in an annular shape. Further, the inner diameter of the O-ring 36 is set to a size that fits into the stepped portion 32F of the insulator 32.

(Cover part)
As shown in FIG. 2, the cover part 60 is comprised by the bracket 62 and the two nuts 68 as an example.

  The bracket 62 is a resin member as an example. The bracket 62 has a configuration in which the cylindrical portion 63 and the plate-like portion 64 are integrated.

  The cylindrical portion 63 shown in FIG. 1 is formed in a cylindrical shape having the Z direction as an axial direction. Specifically, the cylindrical portion 63 is formed in an annular shape centering on the rotation axis K when viewed in the Z direction and extends in the Z direction, and the rotation axis K side (inside) from the upper end in the Z direction of the peripheral wall 63A. And an upper wall 63 </ b> B projecting over. A through hole 63C that penetrates in the Z direction is formed in the upper wall 63B.

  As shown in FIG. 3, the plate-like portion 64 is a portion that is projected in a plate shape along the XY plane from the lower end in the Z direction of the peripheral wall 63 </ b> A to the side opposite to the rotation axis K side (outside). . Further, the plate-like portion 64 is formed in a substantially hexagonal shape when viewed in the Z direction. The plate-like portion 64 is formed with a step 65 that is circular when viewed from the lower side in the Z direction and has the Z direction as the height direction. The inner side of the plate-like portion 64 in the radial direction from the step 65 is a thin portion 64A having a low height in the Z direction. On the other hand, the outer side in the radial direction from the step 65 in the plate-like part 64 is a thick part 64B having a height in the Z direction higher than the thin part 64A. Here, in the switch device 10, the O-ring 36 is sandwiched in the radial direction between the stepped portion 32 </ b> F and the stepped portion 65.

  A through hole 67A, a through hole 67B, and a mounting hole 67C are formed in the thick portion 64B. The through-hole 67A passes through the thick part 64B in the Z direction, and the rivet 45 is inserted therein. The through hole 67B passes through the thick part 64B in the Z direction, and the boss 37 is inserted therein. The attachment hole 67C passes through the thick portion 64B in the Z direction, and a nut 68 described later is attached thereto.

  As an example, the nut 68 is a hexagonal nut whose axial direction is the Z direction. The nut 68 is attached to the attachment hole 67C of the bracket 62 by press fitting. In addition, after the switch apparatus 10 is completed, the nut 68 is attached to an installation place with a bolt (not shown) so that the switch apparatus 10 is fixed to the installation place.

<Fixed terminal part>
As an example, one fixed terminal portion 50 shown in FIG. 2 is provided on one side and the other side of the main body portion 20 in the X direction with respect to the partition wall 32D. Moreover, the fixed terminal part 50 is comprised by the terminal member 52, the 1st washer 55, the 1st nut 56, the 2nd washer 57, and the 2nd nut 58 as an example.

  The fixed terminal portion 50 has the same configuration on one side and the other side in the X direction. Therefore, in the following description, the fixed terminal portion 50 on one side in the X direction will be described, and the description of the fixed terminal portion 50 on the other side will be omitted. 1, 6 </ b> A, and 6 </ b> B, the terminal 51 is shown between the first nut 56 and the second washer 57. The terminal 51 is connected to a power source (not shown) of the vehicle.

  The terminal member 52 shown in FIG. 1 is an example of a terminal member. The terminal member 52 includes, as an example, a columnar portion 53 and an embedded portion 54 that is formed in a part of the columnar portion 53 and is partially embedded in the base 12.

  The columnar part 53 is formed in a columnar shape having the Z direction as an axial direction, and has an outer peripheral surface 53A. The length in the Z direction of the columnar portion 53 is longer than the length in the Z direction from the lower surface of the lower raised portion 42 of the insulator 32 to the upper surface of the upper raised portion 38. Specifically, in the columnar portion 53, a portion corresponding to an embedded portion 54 from an upper protruding portion 54A to a lower protruding portion 54B, which will be described later, is embedded in the insulator 32 by insert molding, and the lower protruding portion A portion below the portion 54B is exposed below the bottom wall 32A. In other words, the columnar portion 53 extends downward from the insulator 32 (base 12) in the Z direction. Further, a male screw portion 53B (see FIG. 2) is formed on the outer peripheral surface 53A of the portion of the columnar portion 53 exposed to the lower side than the base body 12.

  As an example, the embedded portion 54 includes an upper overhang portion 54A, a lower overhang portion 54B, and a contact portion 54C (see FIG. 4).

  The upper projecting portion 54 </ b> A is a portion (head portion of the terminal member 52) projecting radially outward from the outer peripheral surface 53 </ b> A at the upper end in the Z direction of the columnar portion 53. Further, as an example, the upper projecting portion 54A is formed in a regular hexagonal shape as viewed in the Z direction. The size of the upper overhanging portion 54A is set to be within the plane of the upper raised portion 38 when viewed in the Z direction.

  The lower projecting portion 54B is a portion projecting outward in the radial direction from the outer peripheral surface 53A lower than the upper projecting portion 54A in the columnar portion 53. Moreover, the lower side overhang | projection part 54B is formed in the regular hexagon shape seeing to a Z direction as an example. The size of the lower projecting portion 54B is the size that fits in the plane of the lower raised portion 42 when viewed in the Z direction and is the same size as the upper projecting portion 54A.

  The contact portion 54C shown in FIG. 4 is an example of a first contact, is made of an alloy of silver and nickel, and is formed in a disk shape that protrudes upward in the Z direction from the upper surface of the upper protruding portion 54A. The contact portion 54C and the already-described tooth portion 44 are arranged in the X direction on the bottom wall 32A. The contact portion 54C is electrically connected to the columnar portion 53 (see FIG. 1). Furthermore, the contact portion 54C is disposed so as to be in contact with a contact portion 98 (see FIG. 5C) of a contact plate 96 described later. In other words, the terminal member 52 can be electrically connected to the contact plate 96 when in contact with the contact plate 96.

  The first washer 55 shown in FIG. 2 is formed in an annular shape when viewed in the Z direction. The size of the first washer 55 is set such that the columnar portion 53 is inserted. Further, the first washer 55 is disposed between the lower projecting portion 54B (see FIG. 1) and a first nut 56 described later. A female screw portion 56 </ b> A is formed inside the first nut 56. The female screw portion 56A is sized and shaped to be screwed with the male screw portion 53B.

  A columnar portion 53 is inserted into the second washer 57. Further, the second washer 57 is disposed below the first nut 56 in the Z direction. The second nut 58 is screwed into the male threaded portion 53 </ b> B below the second washer 57 in the Z direction, thereby pressing the second washer 57 toward the first nut 56.

<Rotating part>
As shown in FIG. 1, the rotating unit 70 includes a rotor 72, a cap 74, a spring 76 (see FIG. 5A), a holder 78, and an O-ring 82.

  As an example, the rotor 72 is made of resin, and an upper wall 72A, a first side wall 72B, a lower wall 72C, a second side wall 72D, an overhang part 72E, and an extension part 72F are integrally molded. ing. The rotor 72 is a rotating body that is rotated about the rotation axis K as a central axis.

  The upper wall 72A is formed in a circular shape when viewed in the Z direction. The upper wall 72A is formed with an insertion hole (not shown) into which a later-described key 102 is inserted. The first side wall 72B is formed in a cylindrical shape that extends downward from the outer peripheral portion of the upper wall 72A in the Z direction. In addition, a concave portion 72I that is recessed in the radial direction is formed on the outer peripheral surface of the first side wall 72B.

  The lower wall 72C is formed in a disk shape that closes the lower end in the Z direction of the first side wall 72B and is expanded outward in the radial direction perpendicular to the Z direction. The second side wall 72D is formed in a cylindrical shape that extends downward from the outer peripheral portion of the lower wall 72C in the Z direction. The overhanging portion 72E is overhanging radially outward from a portion of the outer periphery of the second side wall 72D that is shifted by 180 degrees in the circumferential direction.

  The extending portion 72F is formed in a cylindrical shape that extends downward from the center portion including the rotation axis K of the lower wall 72C in the Z direction. The outer diameter of the extension part 72F is smaller than the inner diameter of the second side wall 72D. Further, the height of the extending portion 72F in the Z direction is substantially the same as the height of the second side wall 72D in the Z direction. Furthermore, a hole 72G that is recessed from the lower end portion in the Z direction toward the lower wall 72C is formed in the extending portion 72F.

  The hole 72G is formed in a substantially square shape when viewed in the Z direction. Also. A cylindrical tube portion 72H extending from the bottom portion to the lower side in the Z direction is formed at the bottom portion of the hole portion 72G with the rotation axis K as the central axis. The outer peripheral surface of the cylindrical part 72H is opposed to the inner peripheral surface of the extending part 72F in the radial direction with a gap. Further, the height of the lower end in the Z direction of the cylindrical portion 72H is substantially the same as the height of the lower end in the Z direction of the extending portion 72F.

  The cap 74 has a circular plate portion when viewed in the Z direction, and a claw portion extending downward from two locations in the circumferential direction of the plate portion in the Z direction. An insertion hole (not shown) that is penetrated in the Z direction and into which the key 102 is inserted is formed in the plate portion. The claw portion of the cap 74 is formed so as to engage with a recess portion formed on the outer peripheral surface of the first side wall 72B.

  The spring 76 shown in FIG. 5A is elastically deformable in the Z direction. From the center of the spring 76 in the Z direction to the upper end portion, the spring 76 is inserted inside the cylindrical portion 72H (see FIG. 1). Further, the portion from the lower side to the lower end of the center of the spring 76 in the Z direction is exposed from the cylindrical portion 72H and is inserted into a hole 78E of the holder 78 described later.

  As shown in FIG. 1, the holder 78 is an example of a moving member, and is a member provided on the rotor 72 with the rotation axis K as the central axis. As shown in FIG. 5B, the holder 78 is made of resin, for example, and the shaft portion 78A, the overhang portion 78B, the tooth portion 78C, and the extension portion 78D are integrally molded. It has been configured. Furthermore, the holder 78 has a tooth portion 44 (see FIG. 1) along the direction of the rotation axis K (Z direction) while the shaft portion 78A rotates around the rotation axis K inside a through hole 97A of the contact plate 96 described later. ) Is a member that moves to the side away from () in the Z direction.

  The shaft portion 78A is formed in a substantially quadrangular prism shape with the Z direction as the axial direction. That is, the shaft portion 78A is formed in a substantially quadrangular shape in which four positions on the outer periphery are R-shaped when viewed in the Z direction. The outer shape (size) of the shaft portion 78A in the XY plane is an outer shape in which the shaft portion 78A is inserted into the hole 72G (see FIG. 1) of the rotor 72. Further, the outer shape of the shaft portion 78A in the XY plane is smaller than the minimum width (diameter) of the through hole 97A (see FIG. 5C) of the contact plate 96 described later in the XY plane. It is assumed to be the outer shape. That is, the shaft portion 78A is inserted in a state of hardly contacting the through hole 97A. The length of the shaft portion 78A in the Z direction is such that the shaft portion 78A can move in the Z direction along the inner surface of the hole 72G.

  Furthermore, a hole 78E that is recessed from the upper end in the Z direction toward the overhang 78B is formed in the shaft 78A. The size of the hole 78E is set such that the cylindrical portion 72H (see FIG. 1) is inserted. In addition, a convex portion 78F that protrudes outward is formed on a part of the outer peripheral surface of the shaft portion 78A. The convex part 78F engages with a concave part (not shown) of the extension part 72F (see FIG. 1) of the rotor 72 to restrict relative rotation with the holder 78. In the state where the shaft portion 78A is inserted into the hole portion 72G (see FIG. 1) of the rotor 72, the end portion of the spring 76 (see FIG. 5A) comes into contact with the bottom portion of the hole portion 78E. . That is, the holder 78 is given an elastic force from the spring 76. The shaft portion 78A is rotatably provided on the base 12 (see FIG. 1) via the rotor 72.

  The overhang portion 78B is an example of a support portion, and is a portion overhanging from the lower end portion in the Z direction of the shaft portion 78A along the XY plane. The overhang portion 78B is formed in a circular shape when viewed in the Z direction. In addition, the size of the protruding portion 78B is such that the contact plate 96 is in contact with a peripheral portion of a later-described through hole 97A in the contact plate 96 (see FIG. 5C) in the Z direction, and the contact plate 96 is supported from the lower side in the Z direction. It is supposed to be large.

  The tooth portion 78C is an example of a second tooth portion, and is formed of three teeth 79 formed on the overhang portion 78B and projecting in a substantially trapezoidal shape from the lower end in the Z direction of the overhang portion 78B. Yes. The three teeth 79 are arranged at intervals of 120 degrees in the circumferential direction of the virtual circle along a virtual circle (not shown) centered on the rotation axis K. In addition, the three teeth 79 are configured to mesh with the three teeth 44A (see FIG. 4) of the tooth portion 44 described above in the Z direction. Here, when the holder 78 rotates around the rotation axis K and the meshing position of the three teeth 79 is shifted with respect to the three teeth 44A, the holder 78 moves in the Z direction with respect to the insulator 32 (see FIG. 1). It is moved to the upper side of.

  The extending portion 78D is a cylindrical portion that extends on the rotation axis K side (inner side) from the three teeth 79 and extends downward in the Z direction with the rotation axis K as the central axis. Further, the extending portion 78D extends below the three teeth 79 in the Z direction. The extension 78D has a size that is rotatably inserted into the hole 46 (see FIG. 4) of the insulator 32.

  An O-ring 82 shown in FIG. 1 is a rubber sealing material formed in an annular shape. The O-ring 82 is fitted in the recess 72I of the first side wall 72B.

<Moving contact part>
As shown in FIG. 1, the moving contact portion 90 includes a washer 92, a spring 93, a pressing plate 94, and a contact plate 96 as an example of a plate member.

  As an example, the washer 92 is made of stainless steel and has an annular shape when viewed in the Z direction. The washer 92 has an extension 72 </ b> F of the rotor 72 inserted therein. Further, as an example, the washer 92 is stacked on the lower wall 72C of the rotor 72 from the lower side in the Z direction, and is fixed by an adhesive.

  The spring 93 is an example of an urging member, and has an axial center portion 93 </ b> A that is a portion inside a hole penetrating in the Z direction. An extending portion 72F is inserted into the upper portion in the Z direction of the shaft center portion 93A. A shaft portion 78A of the holder 78 is inserted in the lower portion of the shaft center portion 93A in the Z direction. The upper end of the spring 93 in the Z direction is in contact with the washer 92. The lower end of the spring 93 in the Z direction presses the pressing plate 94 against the contact plate 96. In other words, the spring 93 biases the contact plate 96 toward the contact portion 54C (see FIG. 4). In the moving contact portion 90, one washer 92, one spring 93, one pressing plate 94, and one contact plate 96 are provided as an example.

  As an example, the pressing plate 94 is made of phenol resin, and is formed in an annular shape when viewed in the Z direction. In addition, the outer diameter of the pressing plate 94 is approximately the same as the outer diameter of the washer 92. A shaft portion 78 </ b> A of the holder 78 is inserted into the through hole 94 </ b> A of the pressing plate 94.

  The contact plate 96 is made of metal (made of a conductive material), has a thickness direction in the Z direction, and faces the tooth portion 44 and the contact portion 54C (see FIG. 4) described above in the Z direction so as to be inside the insulator 32. Is housed in. As shown in FIGS. 5C and 5D, the contact plate 96 includes a pair of linear portions positioned 180 degrees opposite to the rotation axis K as viewed in the Z direction, and the linear plate It is a plate material formed in a so-called double D-cut shape having a pair of arc-shaped portions continuous to the portions. A through hole 97A that penetrates the contact plate 96 in the Z direction is formed in a central portion of the contact plate 96 and facing the tooth portion 44 (see FIG. 1) in the Z direction. The shape of the through hole 97A is circular when viewed in the Z direction. Of the portions of the contact plate 96, the portion including the hole wall of the through hole 97A is referred to as a peripheral portion 99.

  The through hole 97A is formed in a circular shape when viewed in the Z direction. The diameter of the through hole 97A is larger than the maximum width in the XY plane of the shaft portion 78A (see FIG. 5A). Further, the shaft portion 78A and the hole wall of the through hole 97A are not engaged. That is, in the state where the shaft portion 78A is inserted into the through hole 97A, even if the shaft portion 78A rotates, the contact plate 96 does not rotate. As described above, the peripheral portion 99 of the through hole 97A in the contact plate 96 is in contact with the overhanging portion 78B (see FIG. 5A) in the Z direction.

  A cutout portion 97B as an example of a guided portion is formed at one of the four portions connecting the pair of linear portions and the pair of arc-shaped portions in the contact plate 96. The cutout portion 97B is a portion cut out in an L shape from the outer peripheral edge of the contact plate 96 to the rotation axis K side when viewed in the Z direction. Further, the notch 97B is disposed so as to face the protruding portion 33D (see FIG. 4) of the insulator 32 in the X direction and the Y direction.

  Here, the restricting portion 30 is configured by the protruding portion 33D (see FIG. 4) and the cutout portion 97B. The restricting portion 30 restricts the rotation of the contact plate 96 around the shaft portion 78A (see FIG. 5A). In other words, the notch 97 </ b> B comes into contact with the above-described protrusion 33 </ b> D and restricts rotation around the rotation axis K in the XY plane of the contact plate 96, and in the direction of the rotation axis K (Z direction). It is formed to be guided.

  The upper surface 96A and the lower surface 96B in the Z direction of the contact plate 96 are flat surfaces along the XY plane. As shown in FIG. 5C, two contact portions 98 are formed as an example of the second contact at the portion facing the contact portion 54C (see FIG. 4) on the lower surface 96B in the Z direction.

  Specifically, the two contact portions 98 are formed on one side and the other side of the through hole 97A in the X direction. Further, the two contact portions 98 are made of an alloy of silver and nickel, for example, and are formed in a disk shape protruding from the lower surface 96B to the lower side in the Z direction. Since the contact plate 96 is made of metal, the two contact portions 98 are electrically connected. The two contact portions 98 are disposed so as to be in contact with the two contact portions 54C (see FIG. 4).

<Key>
A key 102 shown in FIG. 3 is an operator operated by a user of the switch device 10, and includes a knob portion 102A that the user picks and an insertion portion 102B that extends from the knob portion 102A in the Z direction. Here, the insertion portion 102B is inserted into the insertion hole (not shown) of the rotor 72 described above, and the key 102 is rotated around the rotation axis K, whereby the rotor 72 is rotated at the rotation axis K at a preset set angle. It is designed to rotate around an arc.

[Assembly of switch device]
An outline of the assembling procedure of the switch device 10 will be described with reference to FIGS. In addition, description of the assembly procedure and arrangement state of some members may be omitted.

  A terminal member 52 is provided on the insulator 32 by insert molding. The extension 78 </ b> D of the holder 78 is inserted into the hole 46 of the insulator 32, so that the holder 78 is disposed in the insulator 32. Subsequently, the extending portion 78 </ b> D is inserted into the through hole 97 </ b> A of the contact plate 96, the through hole 94 </ b> A of the pressing plate 94, and the spring 93. The washer 92 is fixed in advance to the lower surface of the lower wall 72C of the rotor 72 with an adhesive.

  Subsequently, the upper wall 72A and the first side wall 72B of the rotor 72 are inserted into the cylindrical portion 63 of the bracket 62. Further, an O-ring 36 is fitted into the step portion 32F of the insulator 32. Subsequently, the shaft portion 78 </ b> A of the holder 78 is inserted into the hole portion 72 </ b> G of the rotor 72 with one end portion of the spring 76 being inserted into the cylindrical portion 72 </ b> H of the rotor 72. Accordingly, the upper end portion in the Z direction of the spring 76 is in contact with the washer 92, and the lower end portion in the Z direction of the spring 76 is in contact with the pressing plate 94. At this time, the boss 37 of the insulator 32 is inserted into the through hole 67 </ b> B of the bracket 62. Subsequently, the four rivets 45 are caulked while the insulator 32 is sandwiched between the mounting plate 34 and the bracket 62.

  Subsequently, the first washer 55 is disposed on the terminal member 52, and the first nut 56 is screwed onto the terminal member 52. Further, the second washer 57 is disposed on the terminal member 52, and the second nut 58 is screwed onto the terminal member 52. In this way, the switch device 10 is completed.

  As shown in FIG. 6B, in the switch device 10, the contact portion 54C of the terminal member 52 and the contact portion 98 of the contact plate 96 are in contact with each other in a state where the tooth portion 44 and the tooth portion 78C are engaged with each other. To do. The position in the Z direction of the contact plate 96 at this time is referred to as a conduction position.

  As shown in FIG. 6 (A), when the rotor 72 is rotated around the rotation axis K at a set angle by the key 102 from the conductive position state of the contact plate 96, the tooth portion 78C is circumferential with respect to the tooth portion 44. The holder 78 moves to the upper side in the Z direction. As a result, the contact plate 96 is moved upward in the Z direction, and the contact portion 54C and the contact portion 98 are brought into a non-contact state. The position in the Z direction of the contact plate 96 at this time is referred to as a non-conduction position.

[Action]
Next, the operation of this embodiment will be described.

  As shown in FIG. 6B, in the switch device 10, as described above, the rotor 72 and the holder 78 rotate around the rotation axis K so that the tooth portion 44 and the tooth portion 78C are engaged with each other. As a result, the contact portion 54C and the contact portion 98 come into contact with each other and become conductive.

  As shown in FIG. 6A, when the rotor 72 is rotated by the key 102, the meshing state of the tooth portion 44 and the tooth portion 78C is released, and the tooth 79 rides on the tooth 44A. The holder 78 moves in the direction of the rotation axis K (Z direction). As a result, the contact plate 96 supported by the overhang portion 78B (see FIG. 5B) of the holder 78 is moved along the direction of the rotation axis K, so that the contact portion 54C and the contact portion 98 are The contact state is released and a non-conduction state is established.

  FIG. 7A shows the arrangement of the contact plate 96 and the holder 78 in the insulator 32 in the non-conductive state. FIG. 7B shows the arrangement of the contact plate 96 and the holder 78 in the insulator 32 in the conductive state.

  Here, as illustrated in FIG. 7A, the shaft portion 78 </ b> A of the holder 78 has an outer shape smaller than the minimum width of the through hole 97 </ b> A and is not fitted to the contact plate 96. For this reason, since the contact of the contact plate 96 in the rotation direction with the holder 78 is suppressed when the holder 78 rotates around the rotation axis K, the direction of the rotation axis K (Z direction) is not substantially rotated. Move to. Thereby, since it is not necessary to ensure the movement area | region (space required for a movement) of the contact plate 96 in the base | substrate 12 (insulator 32), it is the structure which the contact plate 96 moves to the direction of the rotating shaft K, rotating. In comparison, the base 12 can be reduced in size.

  As shown in FIG. 1, in the switch device 10, the shaft portion 78A is inserted into the shaft center portion 93A, so that one spring 93 is disposed outside the shaft portion 78A. One spring 93 biases the contact plate 96 toward the contact portion 54C (see FIG. 4). This prevents different urging forces from acting on a plurality of portions of the contact plate 96 as compared with a configuration in which a plurality of springs (not shown) are provided outside the shaft portion 78A. The inclination with respect to can be suppressed.

  Furthermore, in the switch device 10 shown in FIGS. 7A and 7B, when the rotor 72 (see FIG. 1) and the holder 78 are rotated, the shaft portion 78A and the peripheral portion 99 may come into contact with each other. In addition, the rotation of the contact plate 96 around the shaft portion 78 </ b> A is restricted by the restriction portion 30. Thereby, it can suppress that the position in the XY plane of the contact part 98 (refer FIG.5 (C)) shift | deviates from the position which opposes the contact part 54C (refer FIG. 4) to a Z direction.

  Specifically, as shown in FIGS. 7A and 7B, in the switch device 10, the rotation of the contact plate 96 in the XY plane is restricted by the contact between the protrusion 33D and the notch 97B. Is done. Here, when the contact plate 96 is assembled to the base body 12, the contact portion 54C (see FIG. 4) and the contact portion 98 (see FIG. 5C) are arranged by arranging the notch portion 97B in accordance with the position of the protruding portion 33D. ) Face each other in the Z direction. In other words, the contact plate 96 cannot be inserted into the insulator 32 unless the protrusion 33D and the notch 97B are opposed to each other. Thereby, in the operation of assembling the contact plate 96 to the base body 12, it is possible to prevent the contact plate 96 from being erroneously assembled (for example, the upper surface 96A and the lower surface 96B are reversed).

  Further, in the switch device 10, the shaft portion 78 </ b> A is substantially rectangular when viewed in the Z direction, and the through hole 97 </ b> A is circular when viewed in the Z direction, thereby suppressing contact between the holder 78 and the contact plate 96. ing. Here, since the through hole 97A is circular, stress is suppressed from concentrating on a part of the hole wall of the through hole 97A, so that the contact plate 96 can be prevented from cracking.

  Further, in the switch device 10 shown in FIG. 1, an annular washer 92 that contacts the spring 93 is provided on the rotor 72 (base 12). For this reason, even if a step or the like is formed on the lower wall 72C of the rotor 72, the rotor 72 side of the spring 93 is received by one plane (an XY plane as an example) of the washer 92. The expansion / contraction direction of the spring 93 is stabilized. As a result, the posture of the contact plate 96 biased by the spring 93 is stabilized, so that chattering is prevented from occurring in contact between the contact portion 54C (see FIG. 4) and the contact portion 98 (see FIG. 5C). can do.

  In addition, this invention is not limited to said embodiment.

  In the switch device 10, when the inclination of the contact plate 96 with respect to the XY plane does not matter, a plurality of springs may be provided around the shaft portion 78 </ b> A instead of the spring 93. Further, when the mass of the contact plate 96 is sufficiently large, the contact state between the contact portion 54C and the contact portion 98 is ensured, so that the urging member may be omitted.

  In the switch device 10, the restricting portion may be formed only on the base 12 or only on the contact plate 96. For example, the protrusion 33D may be configured to be in contact with the contact plate 96 without the notch 97B, or the protrusion formed on the contact plate 96 may be in contact with the base body 12 without the protrusion 33D. Further, in a configuration in which the contact plate 96 does not rotate, there may be no restriction portion.

  The restricting portion is not limited to restricting the rotation of the contact plate 96 by contact between the base 12 and the contact plate 96, and may be a non-contact restricting rotation. For example, a magnet is provided on a part of the base 12 and a part of the contact plate 96 so that the same polarities face each other and the rotation is restricted by a repulsive force, or a magnet having a different polarity is provided and an attractive force. The rotation may be restricted by holding the contact plate 96.

  The outer shape of the contact plate 96 is not limited to a double D-cut shape, and may be a polygonal shape. Further, the shape of the through hole 97A is not limited to a circular shape and may be a polygonal shape or an elliptical shape if there is no risk of cracks in the contact plate 96.

  The outer shape of the shaft portion 78A may be the same shape as the through hole 97A. Further, the outer shape of the shaft portion 78A may be circular when relative rotation of the holder 78 with respect to the rotor 72 does not matter. Furthermore, the outer shape of the shaft portion 78A is not limited to a quadrangular shape, and may be a triangular shape or a polygonal shape that is a pentagon or more. In addition, the shaft portion 78A may be such that a part of the outer peripheral surface is in contact with the hole wall of the through hole 97A.

  In the switch device 10, the operation element exemplified by the key 102 may be a lever.

  The present invention is not limited to the above-described embodiments and modifications, and can be implemented with appropriate modifications or combinations within the scope not departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 Switch apparatus 12 Base | substrate 30 Control part 32A Bottom wall (an example of a bottom part)
33D Projection 44 Tooth (an example of a first tooth)
54C Contact section (example of first contact)
78 Holder (an example of a moving member)
78A Shaft part 78B Overhang part (an example of a support part)
78C tooth part (an example of the second tooth part)
93 Spring (an example of a biasing member)
93A Shaft Center 96 Contact Plate (Example of Plate-shaped Member)
97A Through hole 97B Notch (an example of a guided part)
98 Contact point (example of second contact)
99 Edge

Claims (4)

A base body in which the first tooth portion and the first contact are arranged at the bottom;
The first tooth part and the first contact point are accommodated in the base body, a through hole is formed in a part facing the first tooth part, and the first contact point is formed in a part facing the first contact part. A plate-like member provided with a contactable second contact;
A shaft portion that is inserted into the through hole and rotatably provided on the base, a support portion that extends from the shaft portion in a direction intersecting the rotation axis direction, and supports a peripheral portion of the through hole, and the support portion And a second tooth portion that meshes with the first tooth portion, and the shaft portion rotates inside the through hole and moves to the side away from the first tooth portion along the rotation axis direction. A moving member to be
A switch device having   The switch device according to claim 1, wherein the shaft portion is inserted through the shaft center portion, and one biasing member that biases the plate-shaped member toward the first contact is provided.   The switch device according to claim 1, wherein at least one of the base body and the plate-like member is provided with a restriction portion that restricts rotation of the plate-like member around the shaft portion. The regulating part is
A protrusion protruding from the base body toward the plate-like member and extending along the rotation axis direction;
A guided portion that is formed on the plate-like member and contacts the protruding portion to restrict rotation of the plate-like member and is guided in the direction of the rotation axis;
The switch device according to claim 3.