JP2016039081A - switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switch capable of detecting external force loaded from multi-directions with a single body.SOLUTION: A switch is composed of a base 10, a cover 80 assembled on one surface of the base 10, an operating body 40 stored in an operating recessed part 11 formed on the one surface of the base 10 and clipped by the base 10 and the cover 80 so as to be rotated from the outside, a return spring 70 supported between the cover 80 and the operating body 40 and adding return force to the operating body 40, and a contact point mechanism portion 20 disposed between the base 10 and the operating body 40; and drives the contact point mechanism portion 20 by operating the operating body 40. Especially, at least one operation receiving portion 50 is extended from an outer peripheral surface of the operating body 40, and at least one operation surface 52 is extended outward from a top portion 51 positioned at a free end portion of the operation receiving portion 50.SELECTED DRAWING: Figure 7

Description

  More particularly, the present invention relates to a switch that can detect external forces in multiple directions.

  Conventionally, as a switch, for example, in a cleaning device mounted on an air conditioner, the operation of two filters is detected by one limit switch (see Patent Document 1).

Japanese Patent No. 5020208

However, in the limit switch, as shown in FIG. 3, the seesaw mechanism is used to detect the operation of the two filters by the limit switch. It is done. For this reason, it is necessary to redesign the seesaw mechanism every time the position where the limit switch is incorporated, the design is complicated, and it is necessary to remake the mold, so that the conventional mold is wasted. There is a problem.
In view of the above problems, an object of the present invention is to provide a switch that can detect a multidirectional external force by itself.

  In order to solve the above problems, the switch according to the present invention includes a base, a cover assembled on one side of the base, an operation recess formed on one side of the base, and the base and the cover. An operating body clamped rotatably from the outside, a return spring that is supported between the cover and the operating body and applies a restoring force to the operating body, and the base and the operating body A contact mechanism portion disposed between the switch and the switch for operating the operation body to drive the contact mechanism portion, extending at least one operation receiving portion from an outer peripheral surface of the operation body, At least one operation surface extends outward from the top located at the free end of the receiving portion.

  According to the present invention, not only the external force applied to the top of the operation receiving portion but also the external force applied to the operation surface is received, so that the external force from different directions is directly applied by the operation body being displaced or rotated. It can be detected. For this reason, a seesaw mechanism as in the conventional example is not required, the structure is simplified, and a highly versatile switch can be obtained.

As an embodiment of the present invention, a straight line connecting the rotation center of the operation body to the top of the operation receiving portion and a reference line that passes through the rotation center of the operation body and is divided into two in the width direction. The crossing angle may be 45 degrees or more and 90 degrees or less.
According to the present embodiment, the external force can be efficiently detected by converting the external force loaded on the top into a rotational motion.
Further, an intersection angle between the reference line passing through the rotation center of the operation body and an extended line extending from the first operation surface which is an operation surface extending in the extending direction of the operation receiving portion is 45 degrees. The angle may be less than 90 degrees.
According to this embodiment, the external force can be efficiently detected by converting the external force applied to the first operation surface into a rotational motion.

As another embodiment of the present invention, a second operation surface may be extended from the surface side edge of the operation receiving portion.
According to the present embodiment, since an external force loaded along the thickness direction from the front to the back can be detected, a more versatile switch can be obtained by increasing the detection direction.
In particular, an intersection angle between the reference plane that divides the operating body into two in the thickness direction and an extended line that extends from the second operating surface may be 45 degrees or more and less than 90 degrees.
According to this embodiment, the external force can be efficiently detected by converting the external force loaded on the second operation surface into a rotational motion.

As another embodiment of the present invention, a third operation surface may be extended from the rear side edge of the operation receiving portion.
According to the present embodiment, an external force loaded along the thickness direction from the back to the front can be detected, so that a more versatile switch can be obtained by increasing the detection direction.
In particular, an intersection angle between a reference plane that divides the operating body into two in the thickness direction and an extended line extended from the third operating plane may be 45 degrees or more and less than 90 degrees.
According to this embodiment, the external force can be efficiently detected by converting the external force loaded on the second operation surface into a rotational motion.

As a different embodiment of the present invention, the second operation surface and the third operation surface arranged with the first operation surface therebetween may be connected and integrated via a connecting surface formed of an inclined surface.
According to the present embodiment, the mechanical strength of the operation receiving portion is increased, and the connecting portion can be used as an operation surface, so that versatility is further increased.

As a different embodiment of the present invention, a pair of the operation receiving portions may be extended from the outer peripheral surface of the operation body.
According to this embodiment, the direction of the external force that can be detected increases, and a highly versatile switch can be obtained.
In particular, a pair of operation receiving portions may extend symmetrically from the outer peripheral surface of the operating body.
According to the present embodiment, it is possible to detect an external force from above based on the pushing operation, and there is an effect that a highly versatile switch can be obtained.

1 is a perspective view showing a first embodiment of a switch according to the present invention. It is a disassembled perspective view of the switch shown in FIG. FIG. 2 is an exploded perspective view of the switch shown in FIG. 1 viewed from a different angle. FIGS. A and B are perspective views of the base and the contact mechanism shown in FIG. FIGS. A and B are perspective views of the operating body shown in FIG. 1 viewed from different angles. FIGS. A and B are a perspective view showing a state in which the cover is removed from the switch shown in FIG. 1 and a perspective view of the cover as seen from the back side. FIG. A and FIG. B are a front view and a longitudinal sectional view of the operating body shown in FIG. FIGS. A and B are a longitudinal sectional view and a cross-sectional view showing the switch shown in FIG. 1 before operation. It is a chart for demonstrating the operating method of the switch shown in FIG. FIGS. A and B are a perspective view and a front view for explaining a method of operating the switch shown in FIG. FIGS. A and B are a longitudinal sectional view and a transverse sectional view showing the switch in the operation state shown in FIG. FIGS. A and B are a perspective view and a front view for explaining a different operation method of the switch shown in FIG. FIGS. A and B are a longitudinal sectional view and a transverse sectional view showing the switch in the operation state shown in FIG. FIGS. A and B are a perspective view and a front view for explaining another method of operating the switch shown in FIG. FIGS. A and B are a longitudinal sectional view and a transverse sectional view showing the switch in the operation state shown in FIG. FIG. A and FIG. B are perspective views of an operating body and a contact mechanism showing a second embodiment of the switch according to the present invention as seen from different angles. It is a perspective view which shows the operation body and contact mechanism part of 3rd Embodiment of the switch which concerns on this invention. FIGS. A and B are a perspective view of a switch according to a fourth embodiment of the present invention and a perspective view showing a state where a cover is removed. It is a disassembled perspective view of the switch shown in FIG. FIG. 19 is an exploded perspective view of the switch shown in FIG. 18 viewed from a different angle. FIGS. A and B are perspective views of the operating body and the contact mechanism shown in FIG. It is a disassembled perspective view which shows 5th Embodiment of the switch which concerns on this invention. FIG. 23 is an exploded perspective view of the switch shown in FIG. 22 viewed from a different angle. It is a perspective view of the contact mechanism part shown in FIG. FIGS. A and B are a perspective view showing a state in which the cover is removed from the sixth embodiment of the switch according to the present invention, and a perspective view of the cover as seen from the back side. FIGS. A and B are a perspective view of the base and the operating body shown in FIG. 25 and a perspective view of the contact mechanism. FIG. A and FIG. B are perspective views seen from different angles showing a seventh embodiment of a switch according to the present invention. FIGS. A and B are a plan view and a longitudinal sectional view of the switch shown in FIG. FIG. 28 is a longitudinal sectional view of the switch illustrated in FIG. 27.

An embodiment of a switch according to the present invention will be described with reference to the accompanying drawings of FIGS.
As shown in FIGS. 1 to 8, the switch according to the first embodiment includes a base 10, a contact mechanism 20 insert-molded on the base 10, a sealing material 30, an operating body 40, and a return spring 70. And a cover 80.

  As shown in FIG. 4A, the base 10 has a thick plate shape with an arc surface on one end side, and an elliptical storage recess 11 is formed on the upper surface, and a notch 12 is formed on the arc surface side. Is formed. An annular seal groove 13 is formed on the bottom surface of the storage recess 11, and a substantially semicircular operation recess 14 is formed inside the seal groove 13. On the bottom surface of the operation recess 14, first, second and third fixed contacts 21a, 22a and 23a of first, second and third fixed contact terminals 21, 22 and 23, which will be described later, and a common terminal 24 are provided. The connecting portion 24a is arranged. The base 10 has positioning protrusions 15 and 15 projecting from adjacent corners on the upper surface thereof. Further, the base 10 has a pair of engaging projections 16 and 16 arranged on the outer side surfaces on both sides thereof, and a positioning rib 17 on the edge of the outer side surface. An engaging projection 18 is provided on the outer surface of the projection.

As shown in FIG. 4B, the contact mechanism unit 20 includes first, second, and third fixed contact terminals 21, 22, 23 and a common terminal 24, and extends one end of the common terminal 24. Thus, a connecting portion 24a is formed. An elastic contact piece 25 is caulked and fixed to the connecting portion 24a. The first, second, and third fixed contact terminals 21, 22, and 23 are provided with first, second, and third fixed contacts 21a, 22a, and 23a extending in the same direction. The elastic contact piece 25 extends from the first, second, and third movable contacts 25a, 25b, and 25c that can contact and separate from the first, second, and third fixed contacts 21a, 22a, and 23a, respectively. ing. In particular, the first, second and third movable contacts 25a, 25b and 25c have a twin contact structure in order to ensure contact reliability. Further, the terminal portions 21b, 22b, and 23b of the first, second, and third fixed contact terminals 21, 22, and 23 that are insert-molded to the base 10 and the terminal portion 24b of the common terminal 24 are the same as those of the base 10. It protrudes from the outer surface of and is aligned on the same straight line.
The elastic contact piece 25 is not limited to being caulked and fixed to the connection portion 24a, but may be fixed in an electrically conductive state. For example, various connection methods such as welding, soldering, and adhesion using a conductive adhesive. Can be applied.

  As shown in FIG. 2, the sealing material 30 has a ring shape that can be fitted into a sealing groove 13 provided in the base 10, and the material can be appropriately selected from elastic materials such as rubber.

  As shown in FIG. 6, the operating body 40 includes an operating body main body 41 having a shape that can be rotated and slid in the storage recess 11 of the base 10, and an outer peripheral surface of the operating body main body 41. A pair of operation receiving portions 50 and 60 are extended from.

As shown in FIG. 5, the operating body main body 41 includes a fitting recess 42 in which a return spring 70 (described later) can be fitted and held on a facing surface facing a cover 80 (described later), and both sides of the fitting recess 42. And notch step portions 43 and 44 from which both end portions 71 and 72 of a return spring 70 to be described later project are formed.
Further, the operating body main body 41 is provided with a semicircular pedestal portion 45 that can be rotated by the operation concave portion 14 of the base 10 at the center of the facing surface facing the base 10. A pair of position restricting protrusions 45 a and 45 a are projected from the edge of the pedestal portion 45, and a semicircular arc cam portion 46 is projected from the pedestal portion 45. The cam portion 46 has operation edge portions 46a, 46b, and 46c that can operate the first, second, and third movable contacts 25a, 25b, and 25c.
The operation edge portions 46a and 46c are not necessarily arranged on the same straight line, and the extension lines may intersect at a predetermined angle if necessary.

  On the other hand, the operation receiving portion 50 is formed with a first operation surface 52 that is inclined at a predetermined angle from the top portion 51, and a second operation surface 54 is connected to the first operation surface 52 via a connection surface 53. Is formed. Similarly, the operation receiving portion 60 is formed with a first operation surface 62 that is inclined at a predetermined angle from the top portion 61, and a second operation surface 64 is connected to the first operation surface 62 via a connecting surface 63. Is formed. And the 1st operation surfaces 52 and 62, the connection surfaces 53 and 63, and the 2nd operation surfaces 54 and 64 have the inclination angle which can operate the operation body 40 by operation from a side.

  In particular, as shown in FIG. 7A, a reference line L that passes through the rotation center of the operation body 40 and is divided into two in the width direction, and a top portion of the operation receiving portion 50 from the rotation center of the operation body 40. The straight line M connecting 51 intersects at an intersection angle α. The crossing angle α is preferably 45 degrees or more and 90 degrees or less, particularly about 50 degrees. If the angle is less than 45 degrees, the rotational force based on the applied operating force is reduced, while the pushing force is increased. Therefore, the operating body 40 is pushed in and a desired rotation operation cannot be obtained. Further, when the angle exceeds 90 degrees, there is a possibility that the operating member may slide and fall after contacting the top portions 51 and 61 of the operation receiving portions 50 and 60.

  Further, the extension line P from the first operation surface 52 and the reference line L intersect at an intersection angle β. The crossing angle β is preferably 45 degrees or more and less than 90 degrees, particularly 45 degrees. This is because when the angle is less than 45 degrees, the rotational force, which is a component force along the vertical direction of the operating force loaded from the side, becomes small, and a large operating force is required. Further, when the angle is 90 degrees or more, the rotational force that is a component force along the vertical direction of the operating force loaded from the side is not generated, and the operation becomes impossible.

  As shown in FIG. 7B, the extension line Q extended from the second operation surface 64 and the reference surface N that divides the operation body 40 into two in the thickness direction intersect at an intersection angle γ. The crossing angle γ is preferably 45 degrees or more and less than 90 degrees, particularly about 50 degrees. This is because when the angle is less than 45 degrees, the rotational force, which is a component force along the vertical direction of the operating force loaded from the side, becomes small, and a large operating force is required. Further, when the angle is 90 degrees or more, the rotational force that is a component force along the vertical direction of the operating force loaded from the side is not generated, and the operation becomes impossible.

  As shown in FIG. 6, the return spring 70 is a coil spring that can be accommodated in the fitting recess 42 of the operating body 40, and both end portions 71, 72 project from the notched step portions 43, 44, respectively. Of course, the return spring 70 is not limited to a coil spring, and a leaf spring may be used.

  As shown in FIG. 6B, the cover 80 has a planar shape that can cover the base 10, and an engagement piece 82 having a pair of engagement holes 81, 81 extends from the outer peripheral edge portion thereof. In addition, an engagement piece 84 having an engagement hole 83 is extended. Further, the cover 80 is provided with position restricting protrusions 85 and 86 at positions corresponding to the notch steps 43 and 44 of the operating body 40 on the inward surface thereof, and is fitted to the corners thereof. Portions 87 and 87 are provided. Then, both end portions 71 and 72 of the return spring 70 are engaged with the position restricting projections 85 and 86, respectively.

Next, a method for assembling the switch will be described.
That is, of the base 10 in which the first, second, third fixed contact terminals 21, 22, 23 and the common terminal 24 are insert-molded, the elastic contact piece is connected to the connecting portion 24a of the common terminal 24 exposed from the operation recess 14. Clamp the 25. At this time, the first, second, and third movable contacts 25a, 25b, and 25c of the elastic contact piece 25 are connected to the first, second, and second fixed contact terminals 21, 22, and 23, respectively. The three fixed contacts 21a, 22a, and 23a are opposed to each other so as to be able to contact and separate, but are not in contact. Then, a sealing material 30 is fitted into the sealing groove 13 of the base 10. On the other hand, the return spring 70 is fitted into the fitting recess 42 of the operating body 40, and both end portions 71, 72 of the return spring 70 are protruded into the notched step portions 43, 44. Next, the semicircular arc cam portion 46 of the operating body 40 is fitted into the operating recess 14 of the base 10, and the operating body main body 41 is stored in the storing recess 11 (FIG. 6A). Finally, the cover 80 is assembled to the base 10, the engagement hole 81 of the engagement piece 82 is engaged with the engagement protrusion 16 of the base 10, and the engagement piece 84 is engaged with the engagement protrusion 18. For this reason, the position restricting protrusions 85 and 86 projecting from the inward surface of the cover 80 are respectively fitted to the notch step portions 43 and 44 of the operating body 40, and both end portions 71 and 72 of the return spring 70 are The operating body 40 is prevented from coming off by being locked to the position restricting projections 85 and 86 (FIG. 6B).
As described above, the elastic contact piece 25 is not limited to caulking and fixing to the connecting portion 24a, and may be fixed in an electrically conductive state, for example, welding, soldering, or bonding with a conductive adhesive. Various connection methods can be applied.

The operation of the assembled switch will be described.
When no external force is applied to the operation receiving portions 50 and 60 of the operating body, a pair of positions where both end portions 71 and 72 of the return spring 70 project from the inward surface of the cover 80 as shown in FIG. The operation body 40 is locked to the restricting protrusions 85 and 86, respectively, and the position of the operation body 40 is restricted. Therefore, as shown in FIG. 8B, the cam portion 46 of the operating body 40 is not in contact with the first, second, and third movable contacts 25a, 25b, and 25c of the elastic contact piece 25. The second and third movable contacts 25a, 25b, and 25c are separated from the first, second, and third fixed contacts 21a, 22a, and 23a, respectively.

As shown in FIGS. 10 and 11, when an external force is applied to the top portions 51 and 61 of the operation receiving portions 50 and 60 from above, the operating body 40 descends against the spring force of the return spring 70. Then, the operation edge portions 46a, 46b, 46c of the cam portion 46 push down the first, second and third movable contacts 25a, 25b, 25c of the elastic contact pieces (FIG. 11). Therefore, the first, second, and third movable contacts 25a, 25b, and 25c simultaneously contact the first, second, and third fixed contacts 21a, 22a, and 23a (FIG. 11B), and the common terminal 24 and the second The first, second, and third fixed contact terminals 21, 22, and 23 are electrically connected. As a result, it can be detected that an external force is simultaneously applied to the operation receiving portions 50 and 60.
In addition, the position restricting projections 45a and 45a provided on the pedestal portion 45 of the operating body 40 come into contact with the inner side surface of the operating recess 14 to thereby restrict the position of the operating body 40 (FIG. 11A).
In the present embodiment, the first, second, and third movable contacts 25a, 25b, and 25c are wiped when contacting the first, second, and third fixed contacts 21a, 22a, and 23a, respectively. Therefore, contact failure can be prevented, and a switch having a long life can be obtained.
In particular, the first, second, and third movable contacts 25a, 25b, and 25c do not slidably contact the surface of the base 10, so that no abrasion powder is generated from the base 10 and the contact failure is more unlikely to occur. Is obtained.

  Next, when the load of the external force is released, the operating body 40 is returned to the original position by the spring force of the return spring 70, and the first, second, and third movable contacts 25a, 25b, and 25c are the first and first. 2. Separated from the third fixed contacts 21a, 22a, 23a.

  In the above-described operation, the case where an external force is applied to the top portions 51 and 61 of the pair of operation receiving portions 50 and 60 from above has been described. However, the present invention is not limited thereto, and for example, the operation receiving portions 50 and 60 are inclined. Also when external force is simultaneously applied to the first operation surfaces 52 and 62 from the side, and when external force is simultaneously applied to the second operation surfaces 54 and 64 of the operation receiving portions 50 and 60 from the side, respectively. Similarly, the operating body 40 opens and closes the contacts.

  Further, for example, as shown in FIGS. 12 and 13, when an external force is applied only from the top to the top 51 of one operation receiving portion 50 of the operating body 40, the spring force of the return spring 70 is resisted, The operating body 40 rotates, and the operating edge 46a of the cam portion 46 pushes down the first movable contact 25a of the elastic contact piece 25 (FIG. 13A). For this reason, only the first movable contact 25a contacts the first fixed contact 21a (FIG. 13B), and the common terminal 24 and the first fixed contact terminal 21 are brought into conduction. As a result, it can be detected that an external force is applied only to the operation receiving portion 50. It should be noted that the position of the operation body 40 is restricted by the position restriction surface 44 a (FIG. 12B) provided on the notch step portion 44 of the operation body 40 coming into contact with the position restriction protrusion 86 of the cover 80.

  When the load of the external force is released, the operating body 40 is returned to the original position by the spring force of the return spring 70, and the first movable contact 25a is separated from the first fixed contact 21a.

  Note that the above-described operation is performed when an external force is applied only from the side to the inclined first operation surface 52 of the operation receiving portion 50, or an external force is applied only to the inclined second operation surface 54 of the operation receiving portion 50. Even when is loaded from the side, the contact can be opened and closed by the same operation.

  Further, external force is applied only from the top to the top 61 of the other operation receiving portion 60 of the operating body 40, only to the first operation surface 62 inclined to the other operation receiving portion 60, or only to the second operation surface 64. Even when an external force is applied from the side, the operation body 40 performs the same operation as described above to open and close the contact.

Further, as shown in FIGS. 14 and 15, when an external force is applied to the operation receiving portion 50 of the operation body 40 and the operation body 40 is pushed in while being rotated, the cam portion 46 is pushed in while being turned. For this reason, the operation edge 46a of the cam 46 presses the first movable contact 25a so as to contact the first fixed contact 21a (FIG. 15B). Next, when a different external force is applied to the operation receiving portion 60, the cam portion 46 is further pushed down, and the operation edge portions 46b and 46c push down the second and third movable contacts 25b and 25c, thereby Three movable contacts 25b and 25c are in contact with the second and third fixed contacts 22a and 23a. Therefore, finally, the first, second and third movable contacts 25a, 25b and 25c come into contact with the first, second and third fixed contacts 21a, 22a and 23a.
In the present embodiment, as described above, there is an advantage that the operating body 40 operates smoothly and the contacts can be opened / closed even when a complex external force is loaded with a time difference.

  Further, the external force applied to the operation body 40 is not limited to the top portions 51 and 61 and the first operation surfaces 52 and 62 of the operation receiving portions 50 and 60, but the connection surfaces 53 and 63 and the second surfaces of the operation receiving portions 50 and 60. An external force may be applied to the operation surfaces 54 and 64 from the side. According to the present embodiment, since external forces from multiple directions can be detected, there is an advantage that a versatile switch that is easy to use can be obtained.

As shown in FIG. 16, the second embodiment is substantially the same as the first embodiment described above, and is different from the operation edge portions 46 a, 46 b, 46 c of the cam portion 46 of the operation body 40 in the click feeling stepped portion. Is formed.
According to the present embodiment, when the operation edge portions 46a, 46b, 46c of the cam portion 46 come into contact with the first, second, and third movable contacts 25a, 25b, 25c, a click feeling is generated and the operation is confirmed. There is an advantage that you can.
In the present embodiment, the case where only the first operation surfaces 52 and 62 extend from the tops of the operation receiving portions 50 and 60 is disclosed. However, as in the first embodiment, the second operation surface is connected via the connection surface. Of course, an operation surface may be formed.
Others are the same as those in the first embodiment described above, and thus the same parts are denoted by the same reference numerals and description thereof is omitted.

As shown in FIG. 17, the third embodiment is substantially the same as the first embodiment described above, except that three independent cam portions 47 a, 47 b, 47 c are integrally formed on the operating body 40. .
According to the present embodiment, the cam portions 47a, 47b, and 47c are divided so as to correspond to the first, second, and third movable contacts 25a, 25b, and 25c, respectively. Can be selected. For this reason, there are advantages that the design becomes easy and the range of selection is widened.
In the present embodiment, the case where only the first operation surfaces 52 and 62 extend from the tops of the operation receiving portions 50 and 60 is disclosed. However, as in the first embodiment, the second operation surface is connected via the connection surface. Of course, an operation surface may be formed.
Others are the same as those in the first embodiment described above, and thus the same parts are denoted by the same reference numerals and description thereof is omitted.

As shown in FIGS. 18 to 21, the fourth embodiment is basically the same as the first embodiment, and the difference is that an external force is detected only by a rotation operation.
In other words, the base 10, the contact mechanism 20 insert-molded on the base 10, the sealing material 30, the operating body 40, the return spring 70, and the cover 80 are formed.

  As shown in FIG. 19, the base has an oval storage recess 11 formed on its upper surface and a notch 12 formed on the arc surface side. An annular seal groove 13 is formed on the bottom surface of the storage recess 11, and a substantially semicircular operation recess 14 is formed inside the seal groove 13. In the operation recess 14, first and second fixed contacts 21 a and 22 a of the first and second fixed contact terminals 21 and 22 formed by insert molding and a connection portion 24 a of the common terminal 24 are arranged. The terminal portions 21b, 22b, and 24b protrude from the same outer surface. Further, the base 10 has engaging projections 16 projecting on the outer side surfaces on both sides thereof, and substantially L-shaped positioning ribs 17 projecting on the outer side surface. The base 10 has positioning projections 15 and 15 projecting from adjacent corners on the upper surface thereof.

As shown in FIG. 21, the contact mechanism section 20 has a common terminal 24 and first and second fixed contact terminals 21 and 22 arranged side by side, and one end portion of the common terminal 24 extends to form a connection section 24a. Is formed. An elastic contact piece 25 is caulked and fixed to the connecting portion 24a. The first and second fixed contact terminals 21 and 22 are provided with first and second fixed contacts 21a and 22a extending in the same direction. Further, the elastic contact piece 25 extends first and second movable contacts 25a and 25b, which can contact and separate from the first and second fixed contacts 21a and 22a, respectively. The first and second movable contacts 25a and 25b have a twin contact structure in order to ensure contact reliability.
As described above, the elastic contact piece 25 is not limited to caulking and fixing to the connecting portion 24a, and may be fixed in an electrically conductive state, for example, welding, soldering, or bonding with a conductive adhesive. Of course, various connection methods such as these can be applied.

  The sealing material 30 has a ring shape that can be fitted into the sealing groove 13 provided in the base 10, and the material thereof can be appropriately selected from elastic materials such as rubber.

As shown in FIG. 21B, the operating body 40 includes an operating body main body 41 having a shape that can be rotated in the storage recess 11 of the base 10, and a pair of substantially L from the outer peripheral surface of the operating body main body 41. The character-shaped operation receiving parts 50 and 60 are extended.
Further, the operating body main body 41 is formed with a fitting concave portion 42 capable of accommodating a return spring 70 on an opposing surface facing a cover 80 to be described later, communicated with both sides of the fitting concave portion 42, and Notch step portions 43 and 44 from which both end portions 71 and 72 of the return spring 70 protrude are formed.
On the other hand, the operating body main body 41 is formed with a semicircular pedestal portion 45 having an outer peripheral shape that can be fitted into the operating concave portion 14 of the base 10 at the center of the facing surface facing the base 10. In addition, a fan-shaped cam portion 46 is provided on the pedestal portion 45 in a protruding manner. The cam portion 46 includes substantially V-shaped operation edge portions 46a and 46b capable of operating the first and second movable contacts 25a and 25b. In particular, the operation edge portions 46a and 46b are provided with a click feeling step. For this reason, when the operation edge portions 46a and 46b of the cam portion 46 come into contact with the first and second movable contacts 25a and 25b, there is an advantage that a click feeling is generated and the operation of the operation body 40 can be confirmed.

  As shown in FIG. 18B, the return spring 70 has a shape that can be accommodated in the fitting recess 42 of the operating body 40, and both end portions 71, 72 project from the notched step portions 43, 44.

  As shown in FIGS. 20 and 21, the cover 80 has a planar shape capable of covering the base 10, and has an engagement piece 82 provided with an engagement hole 81 extending from an outer peripheral edge thereof. At the same time, an engagement piece 84 having an engagement hole 83 is extended.

The other parts are substantially the same as those in the first embodiment described above, and therefore, the same parts are denoted by the same reference numerals to save the description.
Further, the method for assembling the switch is the same as that in the first embodiment, and the description thereof will be omitted.

Next, the operation of the assembled switch will be described.
When no external force is applied to the operation receiving portions 50, 60 of the operating body 40, a pair of position restricting projections 85, both ends 71, 72 of the return spring 70 project from the inward surface of the cover 80. The operation body 40 is locked to the position 86 and the position of the operation body 40 is regulated. For this reason, the operation edge portions 46a and 46b of the cam portion 46 of the operating body 40 are not in contact with the first and second movable contacts 25a and 25b of the elastic contact piece 25, and the first and second movable contacts 25a. 25b are separated from the first and second fixed contacts 21a, 22a.

  When an external force is applied to the operation receiving portion 50 of the operating body 40 from above, the operating body 40 rotates against the spring force of the return spring 70, and the operating edge 46a of the cam portion 46 is elastic. The first movable contact 25a of the contact piece 25 is pushed down. Therefore, when the first movable contact 25a comes into contact with the first fixed contact 21a and the common terminal 24 and the first fixed contact terminal 21 are brought into conduction, it can be detected that an external force is loaded on the operation receiving portion 50. . The position restricting surface 44 a provided on the notch step portion 44 of the operating body 40 abuts on the position restricting protrusion 86 of the cover 80 and is position restricted.

When the load of the external force is released, the operating body 40 is returned to the original position by the spring force of the return spring 70, and the first movable contact 25a is separated from the first fixed contact 21a.
Note that the contact can be opened and closed by performing the same operation even when an external force is applied to the operation receiving portion 60 of the operating body 40.

As shown in FIGS. 22 to 24, the fifth embodiment is substantially the same in basic structure as that of the first embodiment, and is different only in the case where an external force is simultaneously applied to the operation receiving portions 50 and 60. This is a switch that can be detected.
That is, as shown in FIG. 22, the base 10 has a housing recess 11 formed on the upper surface thereof, and a notch 12 formed on the arcuate surface side. An elliptical seal groove 13 is formed in the bottom surface of the storage recess 11, and a substantially semicircular operation recess 14 is formed inside the seal groove 13. The first fixed contact 21a of the first fixed contact terminal 21 of the contact mechanism unit 20 and the connection portion 24a of the common terminal 24 are disposed on the bottom surface of the operation concave portion 14, and the terminal portions 21b and 24b are connected to each other. Projecting from the same outer surface.

As shown in FIG. 24, the contact mechanism section 20 includes a first fixed contact terminal 21 and a common terminal 24 arranged in parallel, and one end portion of the common terminal 24 is extended to form a connection section 24a. . An elastic contact piece 25 is caulked and fixed to the connecting portion 24a. The elastic contact piece 25 extends a first movable contact 25a that can be brought into contact with and separated from the first fixed contact 21a.
The rest, including the method for fixing the elastic contact piece 25, is substantially the same as in the first embodiment described above.

According to the present embodiment, when the operation body 40 is pushed down from the upper side at the same time, the operation body 40 descends against the spring force of the return spring 70, thereby causing the cam portion 46. The operating edge 46b pushes down the first movable contact 25a to contact the first fixed contact 21a.
However, for example, when an external force is applied only to the operation receiving portion 50 of the operating body 40, the operating body 40 rotates, but the cam portion 46 cannot push down the first movable contact 25a. Therefore, the first movable contact 25a does not come into contact with the first fixed contact 21a.
The other parts are substantially the same as those in the first embodiment, and the same parts are denoted by the same reference numerals and the description thereof is omitted.

As shown in FIGS. 25 and 26, the sixth embodiment is substantially the same as the first embodiment described above, except that both ends 71 and 72 extending in the direction intersecting the outer periphery of the return spring 70 are provided. In this case, the position restricting projections 85 and 86 projecting from the cover 80 are respectively locked.
According to this embodiment, the position where the position restricting protrusions 85 and 86 are provided can be arbitrarily selected, the degree of freedom in design is increased, the design is facilitated, and the return spring 70 is easily assembled. There are advantages.
The other parts are almost the same as those in the first embodiment, and the same parts are denoted by the same reference numerals and description thereof is omitted.

As shown in FIGS. 27 to 29, the seventh embodiment is substantially the same as the first embodiment described above, and the difference is that the operation receiving portion 50 of the operation body 40 is inclined to the first, second, and second inclined portions. This is a case where the third operation surfaces 52, 54, 56 are formed continuously via the connection surfaces 53, 55. Similarly, the operation receiving portion 60 is also formed with first, second, and third operation surfaces 62, 64, and 66 that are inclined through the connection surfaces 63 and 65.
The inclination angles of the first, second, and third operation surfaces and the connection surface are formed in the same manner as in the first embodiment described above, and a description thereof will be omitted.
According to the present embodiment, there is an advantage that a switch that can detect an external force applied not only from the top but also from the front, rear, left and right sides can be obtained with one switch.
The other parts are almost the same as those in the first embodiment, and the same parts are denoted by the same reference numerals and description thereof is omitted.

Of course, not only the first, second, and third operation surfaces but also the connection surface may be used as the operation surface.
In addition, the first, second, and third operation surfaces and the connection surface described above are each formed as a flat surface, but need not necessarily be a flat surface, and may be a continuous curved surface. It is.
Further, the operation receiving portion is not provided with the first operation surface, and only the second operation surface is extended from the top, only the third operation surface is extended from the top, or only the second operation surface and the third operation surface are extended from the top. Of course, you may do.

  Of course, the switch according to the present invention is not limited to the above-described switch, and may be applied to the contact switching device of another embodiment.

DESCRIPTION OF SYMBOLS 10 Base 11 Storage recess 12 Notch part 13 Seal groove 14 Operation recessed part 15 Positioning protrusion 16 Engaging protrusion 17 Positioning rib 18 Engaging protrusion 20 Contact mechanism part 21 1st fixed contact terminal 21a 1st fixed contact 22 2nd Fixed contact terminal 22a Second fixed contact 23 Third fixed contact terminal 23a Third fixed contact 24 Common terminal 24a Connection portion 25 Elastic contact piece 25a First movable contact 25b Second movable contact 25c Third movable contact 30 Sealing material 40 Operating body Reference Signs List 41 Operation body 42 Recess for fitting 43 Notch step portion 44 Notch step portion 45 Base portion 46 Cam portion 46a Operation edge portion 46b Operation edge portion 46c Operation edge portions 47a, 47b, 47c Cam portion 50 Operation receiving portion 51 Top portion 52 First operation surface 53 Connection surface 54 Second operation surface 55 Connection surface 56 Third operation surface 60 Operation receiving portion DESCRIPTION OF SYMBOLS 1 Top part 62 1st operation surface 63 Connection surface 64 2nd operation surface 65 Connection surface 66 3rd operation surface 70 Return spring 71 One end part 72 Other end part 80 Cover 81 Engagement hole 82 Engagement piece 83 Engagement hole 84 Engagement Piece 85 Position restriction protrusion 86 Position restriction protrusion L Reference line M Straight line N Reference plane P Extension line Q Extension line

Claims (10)

Base and
A cover assembled on one side of the base;
An operating body that is housed in an operating recess formed on one side of the base and that is rotatably held between the base and the cover from the outside;
A return spring supported between the cover and the operating body, and applying a return force to the operating body;
The contact mechanism portion disposed between the base and the operating body,
A switch for operating the operating body to drive the contact mechanism,
A switch, wherein at least one operation receiving portion extends from an outer peripheral surface of the operating body, and at least one operation surface extends outward from a top portion located at a free end portion of the operation receiving portion.   An intersection angle between a straight line connecting the rotation center of the operation body and the top of the operation receiving portion and a reference line that passes through the rotation center of the operation body and is divided into two in the width direction is 45 degrees or more. The switch according to claim 1, wherein the switch is 90 degrees or less.   An intersection angle between the reference line passing through the rotation center of the operation body and an extended line extending from the first operation surface which is an operation surface extending in the extending direction of the operation receiving portion is 45 degrees or more. The switch according to claim 2, wherein the switch is less than 90 degrees.   The switch according to any one of claims 1 to 3, wherein a second operation surface is extended from a surface side edge of the operation receiving portion.   The intersection angle between a reference plane that divides the operating body into two in the thickness direction and an extended line that extends from the second operating plane is 45 degrees or more and less than 90 degrees. switch.   The switch according to any one of claims 1 to 5, wherein a third operation surface extends from a rear surface side edge portion of the operation receiving portion.   The intersection angle between a reference plane that divides the operating body into two in the thickness direction and an extended line that extends from the third operating plane is 45 degrees or more and less than 90 degrees. switch.   The second operation surface and the third operation surface arranged with the first operation surface interposed therebetween are connected and integrated through a connecting surface formed of an inclined surface. The switch according to item.   The switch according to any one of claims 1 to 8, wherein a pair of the operation receiving portions are extended from an outer peripheral surface of the operation body.   The switch according to any one of claims 1 to 9, wherein a pair of operation receiving portions extend symmetrically from the outer peripheral surface of the operation body.

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