JP3171001U - Operation switch - Google Patents

Abstract

A switch device capable of reducing the number of parts and obtaining a desired operation load is provided. A base material 50 provided with a fixed contact 51, an elastic body 33 made of an insulating material disposed at a position facing the fixed contact 51 and provided with a movable contact 40 inside and capable of reversing operation, and an elastic body And a push button 21 capable of pressing 33. The push button 21 is positioned above the elastic body 33 and is disposed at one end of the lever member 20, and the other end of the lever member 20 is cantilevered by the base material 50. An adjustment unit 32 that is opposed to the base material 50 and that can adjust the load of the push button 21 is provided below the push button 21. The distance from the base material 50 to the lower end portion of the adjustment portion 32 is formed larger than the distance from the fixed contact 51 to the lower end portion of the movable contact 40. [Selection] Figure 1

Description

  The present invention relates to a key switch device that is operated by pressing, and more particularly to a key switch device that is mounted on a remote controller that is an input device of an electronic device.

Conventionally, various proposals have been made for switch devices used in electronic devices and the like.
In Patent Document 1, two contact portions (movable contacts) that bulge upward are provided below the buttons, and the buttons are biased upward by the elasticity of the thin portions of the contact portions. A contact (fixed contact) that is conducted by a contact portion is formed on the other printed circuit board.
The switch device 100 described in Patent Document 2 has a structure shown in FIG. 7, and a stabilizing member 113 is rotatably held on the lower surface of the long push button 111 and intersects in an X shape. The linked link member 105 is rotatably held, and the push button 111 is urged upward by the rubber dome 103.

JP-A-4-324212 JP 2000-11797 A

However, in the switch device described in Patent Document 1, two movable contacts are provided below the button so that they are conductive even when the end of the button is pressed. For this reason, a long button needs to be provided with a plurality of contacts, and there is a drawback that the number of parts increases. In addition, when the number of the contacts is one, a part such as a stabilizing member of Patent Document 2 in which the button is pressed horizontally is required, and the number of parts increases and the structure becomes complicated.
Further, in the switch device described in Patent Document 2, when the upper surface of the push button 111 is pushed down, the link member 105 moves downward while rotating, and the stabilizing member 113 moves downward while rotating. Even a long push button can suppress horizontal rattling and can be pressed horizontally, but has the disadvantage that the number of parts increases and the structure becomes complicated.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a switch device that can be pressed horizontally even with a long push button, reduces the number of parts, and obtains a desired operation load. With the goal.

  In order to achieve this object, the present invention provides an elastic body made of a base material provided with a fixed contact and an insulative material that is disposed at a position facing the fixed contact and has a movable contact inside. And a push button capable of pressing the elastic body, wherein the push button is located above the elastic body and disposed at one end of the plate-like member, The other end is cantilevered by the base material, is opposed to the base material, and includes an adjustment unit that can adjust the load of the push button below the push button, and the adjustment unit is reversed. It is operable, and when the elastic body and the adjustment portion come into contact with the fixed contact and the substrate, respectively, due to the downward pressing of the push button, the adjustment portion comes into contact with a delay from the elastic body. It is characterized by that.

  The present invention configured as described above includes an elastic body provided with a movable contact at a position where it can be pressed by a push button and an adjustment unit capable of adjusting a load, so that the shape, thickness, etc. of the elastic body are changed. It is possible to adjust the load efficiently without any trouble. Further, when the elastic body and the adjustment unit provided with the movable contact by pressing of the push button come into contact with the fixed contact and the substrate, respectively, the adjustment unit is based on the movable contact provided on the elastic body rather than the fixed contact. By delaying contact with the material, electrical continuity can be reliably ensured.

  In addition, the adjustment unit is located in the vicinity of the elastic body, and the distance from the base material to the lower end of the adjustment unit is greater than the distance from the fixed contact to the lower end of the movable contact provided on the insulating material. Characterized by being large

  In the present invention configured as described above, the adjustment unit is located in the vicinity of the elastic body, and the distance from the base material to the lower end of the adjustment unit is from the fixed contact to the lower end of the movable contact provided on the insulating material. By being larger than the distance, when the adjustment unit and the insulating material are pressed by the push button, the movable contact of the insulating material comes into contact with the fixed contact before the adjustment unit. Thereby, electrical conduction can be ensured more reliably.

  The adjusting portion is made of an insulating material having no movable contact.

  In the present invention configured as described above, since the adjusting unit does not have a movable contact, the base can be designed with a minimum number of fixed contacts. Thus, efficient pattern design can be performed.

  Further, the adjusting portion is formed integrally with the elastic body.

  In the present invention configured as described above, the adjustment portion and the elastic body are formed of the same component, so that the number of components can be reduced.

  As described above, according to the present invention, since the elastic body provided with the movable contact at the position that can be pressed by the push button and the adjustment unit capable of adjusting the load, the load can be adjusted efficiently. When the elastic body and the adjustment unit provided with the movable contact by pressing the push button come into contact with the fixed contact and the base material, respectively, the adjustment unit is attached to the base material rather than the movable contact provided on the elastic body contacts the fixed contact. By delaying the contact, electrical conduction can be ensured reliably.

It is a disassembled perspective view explaining the structure of the switch apparatus which concerns on embodiment of this invention. It is sectional drawing which shows the initial state of the switch apparatus which concerns on embodiment of this invention. In the switch device concerning the embodiment of the present invention, it is a sectional view showing the state at the time of pushing down a push button. It is a principal part enlarged view in FIG. It is sectional drawing which shows a modification in the switch apparatus which concerns on embodiment of this invention. It is a principal part enlarged view in FIG. It is sectional drawing which shows a prior art example.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is an exploded perspective view of a switch device according to an embodiment of the present invention. As shown in FIG. 1, the switch device according to the present embodiment is an elastic member in which a lever member (plate-like member) 20 provided with a push button 21, an adjustment portion 32, and an elastic body 33 are formed. 30, a movable contact 40, a substrate (base material) 50, and a pin 10.

  First, the lever member 20 will be described with reference to FIG. The lever member 20 is made of, for example, an insulating resin material. The lever member 20 is formed with a push button 21 on one end side, and on the other end side, a through hole 23 and a through hole 52 of a substrate 50 described later are cantilevered by a pin 10 so as to be pressed. The lever member 20 is provided with a bent portion 22, and the bent portion 22 keeps a gap with an elastic member 30 described later constant. Further, the push button 21 is positioned above an elastic body 33 to be described later, and when the push button 21 is pressed downward from the upper part, the push button 21 is pivotally operated with the bent portion 22 as a fulcrum, which will be described later. The adjusting portion 32 and the elastic body 33 formed on the elastic member 30 are moved downward.

  Next, the elastic member 30 will be described with reference to FIGS. 1 and 2. The elastic member 30 is made of, for example, an insulating resin material, and an elastic body 33 and an adjustment portion 32 disposed in the vicinity of the elastic body 33 are integrally formed on the base portion 31 so as to be able to perform a reverse operation. The base portion 31 is disposed on an upper portion of a substrate 50 to be described later, and the adjustment portion 32 and the elastic body 33 are opposed to the pusher portion 24 formed on the lower surface of the push button 21 with a certain gap. Further, a convex portion 34 and a convex portion 35 are formed inside the adjustment portion 32 and the elastic body 33, respectively, and a movable contact 40 using a conductive material is formed on the lower surface of the convex portion 35. Then, the adjustment portion 32 and the elastic body 33 are displaced downward with a reversal operation when a pressing force is transmitted from the push button 21, and are formed on the lower end portion 34 a of the convex portion 34 and the lower surface of the convex portion 35. The lower end portion 40 a of the movable contact 40 is in contact with the upper surface of the substrate 50 and the fixed contact 51. The distance from the upper surface of the substrate 50 to the lower end part 34a of the convex part 34 is longer than the distance from the fixed contact 51 to the lower end part 40a of the movable contact 40 formed on the convex part 35. The length of the part 35 is set. Further, by providing the adjustment unit 32, the operation load of the push button 21 is adjusted. Further, no movable contact is formed on the adjustment unit 32.

  For this reason, since the elastic body 33 provided with the movable contact 40 at a position that can be pressed by the push button 21 and the adjustment unit 32 that can adjust the load are provided, the load can be applied without changing the shape, thickness, etc. of the elastic body 33 Can be adjusted efficiently

  Moreover, since the adjustment part 32 and the elastic body 33 are integrally formed via the base part 31, the number of parts can be reduced.

  Moreover, since the movable contact is not formed in the adjustment part 32, the number of parts can further be reduced.

  Next, the substrate 50 will be described with reference to FIG. A fixed contact 51 is formed on the substrate 50 at a position facing the convex portion 35 of the elastic body 33. Further, a through hole 52 is formed in the opposite direction to the fixed contact 51, and as described above, the pin 10 is fixed by inserting the pin 10 into the through hole 52 and the insertion hole 23 formed in the lever member. .

  In addition, since the adjustment part 32 does not have a movable contact, the fixed contact of the board | substrate 50 can be designed with the minimum number. Thus, efficient pattern design can be performed.

  Next, the operation of the switch device of the present invention will be described with reference to FIGS. In the initial state, as shown in FIG. 2, no pressing force is applied to the push button 21, and no deformation is seen in the adjustment unit 32 and the elastic body 33. For this reason, the convex portion 34 and the convex portion 35 formed on the lower surface of the adjusting portion 32 and the elastic body 33 are not in contact with the surface of the substrate 50 and the fixed contact 51, respectively.

  When a pressing force is applied to the push button 21 from this state, as shown in FIGS. 3 and 4, the pusher portion 24 formed at the lower portion of the push button 21 pushes down the upper portion of the adjusting portion 32 and the elastic body 33. Thereby, the adjustment part 32 and the elastic body 33 are moved below. Then, when a certain pressing force is reached, the adjustment unit 32 and the elastic body 33 are reversed so that the touch is obtained, and the protrusions 34 and the protrusions 35 formed on the lower surfaces of the adjustment unit 32 and the elastic body 33 are formed on the substrate. 50 surfaces and fixed contacts 51 are contacted.

  At this time, as described above, the distance from the upper surface of the substrate 50 to the lower surface of the convex portion 34 is set to be longer than the distance from the fixed contact 51 to the lower surface of the convex portion 35. After the lower end portion 40 a of the movable contact 40 formed on the lower surface of the surface 35 contacts the fixed contact 51, the lower end portion 34 a of the convex portion 34 contacts the upper surface of the substrate 50. That is, the lower end portion 40a of the convex portion 34 formed on the adjustment portion 32 is delayed from contacting the base material more reliably than the lower end portion 40a of the movable contact 40 is in contact with the fixed contact 51. Can be secured.

  When the pressing force of the push button 21 is released, the adjusting unit 32 and the elastic body 33 are elastically restored and returned to the initial position, thereby releasing the contact between the movable contact 40 and the fixed contact 51. Further, the push button 21 is also elastically restored and returned to the initial position.

  The present invention is not limited to the above-described embodiment, and various modifications other than those described above can be made without departing from the spirit of the present invention.

  For example, in the above embodiment, the adjustment unit 32 is disposed on the distal end side of the lever member 20 with respect to the elastic body 33, but can be changed depending on the pattern layout of the substrate 50, and the fixed contact is on the distal end side of the lever member 20. 5 and 6, the elastic body 33 may be formed on the distal end side of the lever member 20 with respect to the adjustment portion 32. In this case, the distance from the upper surface of the substrate 50 to the lower end portion 37 a of the convex portion 37 is set to be shorter than the distance from the fixed contact 51 to the lower end portion 45 a of the movable contact 45 formed on the convex portion 36. Thus, after the lower end portion 45a of the movable contact 45 formed on the convex portion 36 contacts the fixed contact 51, the lower end portion 37a of the convex portion 37 contacts the upper surface of the substrate 50. Can be secured.

  Moreover, in the said embodiment, the convex part 35 of the elastic body 33 precedes the convex part 34 of the adjustment part 32 by adjusting the length of the convex part 34 of the adjustment part 32, and the convex part 35 of the elastic body 33. The movable contact 40 formed in the contact with the fixed contact 51 is configured to ensure electrical continuity, but although not shown in the figure, for example, by changing the shape of the pusher portion 24, Even if the lower end portion 40 a of the movable contact 40 formed on the convex portion 35 of the elastic body 33 can contact the fixed contact 51 before the lower end portion 34 a of the convex portion 34 formed on the adjustment portion 32. In this case as well, the same effect as the above-described embodiment can be obtained.

  Moreover, in the said embodiment, although the load of the pushbutton 21 is adjustable by providing the adjustment part 32 in one place, when large load is required, for example, although not shown in figure, there are several adjustment parts 32. It may be provided. In this case, by forming integrally with the elastic body 33, a necessary load can be obtained without increasing the number of parts. In addition, when a large load is obtained with a single elastic body, it is necessary to increase the thickness of the elastic body, so durability may deteriorate, but a large load may be applied without changing the thickness of the elastic body. Since it can be obtained, deterioration of durability can be suppressed.

DESCRIPTION OF SYMBOLS 10 Pin 20 Lever member 21 Push button 22 Bending part 23 Insertion hole 30 Elastic member 31 Base part 32 Adjustment part 33 Elastic body 34 Convex part 35 Convex part 36 Elastic body 37 Adjustment part 40 Movable contact 50 Substrate (base material)
51 Fixed Contact 52 Through-hole 100 Switch Device 103 Rubber Dome 105 Link Member 111 Push Button 113 Stabilizing Member

Claims (4)

  A base material provided with a fixed contact; an elastic body made of an insulative material that is disposed at a position facing the fixed contact and has a movable contact inside; and a push button capable of pressing the elastic body; The push button is positioned above the elastic body and is disposed at one end of the plate member, and the other end of the plate member is cantilevered by the base material. And an adjustment part that is capable of adjusting the load of the push button below the push button, the adjustment part is capable of reversing operation, and is configured to be elastic by the push button. The switch device is characterized in that, when the body and the adjustment unit come into contact with the fixed contact and the base material, respectively, the adjustment unit comes in contact with the elastic body after a delay.   The adjusting portion is located in the vicinity of the elastic body, and a distance from the base material to a lower end portion of the adjusting portion is larger than a distance from the fixed contact to a lower end portion of a movable contact provided on the insulating material. The switch device according to claim 1.   The switch device according to claim 1, wherein the adjustment unit is made of an insulating material having no movable contact. The switch device according to any one of claims 1 to 3, wherein the adjustment unit is formed integrally with the elastic body.