JP2003016875A - Multi-directional push switch - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a pressing switch capable of effectively eliminating a reversing sound of a reversing plate. SOLUTION: By pressing only a pressing member 80 by pressing a pressing member 80, a pressing portion 81 presses a central reversing plate 30 to turn on a switch contact 21 thereof and to swing the pressing member 80. As a result, the swinging member 50 swings integrally, and the pressing portion 57 on the side that has been lowered presses the reversing plate 30 opposed thereto to turn on the switch contact 21.
The reversing sound suppressing member 40 made of an elastic material that resiliently presses the pressing member 80 upward is installed between the pressing member 80 and the swinging member 50, so that the pressing member 81 is inverted by descending the pressing portion 81 of the pressing member 80. The reverse sound of the reverse plate 30 is suppressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multidirectional push switch.

[0002]

2. Description of the Related Art Conventionally, video tape recorders, game machines, in-vehicle navigation systems, various O.D. A equipment,
2. Description of the Related Art As a device for operating various remote control devices, mobile devices such as mobile phones, a multidirectional pressing switch having an operating knob that swings in multiple directions has been developed and used.

FIG. 6 is a schematic sectional view of this type of multidirectional pressing type switch. The multi-directional pressing switch shown in the figure is
The flexible switch board 120 is mounted on the lower case 110, and the pressing member 130 and the swinging member 140 are mounted thereon.
An upper case 150 is placed on the upper case 150, and the pressing member 130
A substantially disc-shaped operation knob 160 is fixed to the tip of the lever 131 of the. Flexible switch board 12
A reversal plate (movable contact plate) 121 formed by forming an elastic metal plate into a dome shape is attached to the center of the upper surface of 0. The reversal plate (movable contact plate) is also arranged around the reversal plate 121 in a ring shape at equal intervals. Four 121 (only two are shown in the figure) are attached. Switch contacts are provided on the flexible switch substrate 120 at positions facing the reversal plates 121. The center reversing plate 121 faces the pressing portion 133 provided on the lower surface of the center of the pressing member 130, and the surrounding reversing plate 121.
Face each pressing portion 141 provided on the swing member 140.

When the center of the upper surface of the operating knob 160 is pressed, the swinging member 140 remains in the position shown in the drawing and the pressing member 13 is held.
Only 0 is lowered, and the pressing portion 133 presses and inverts the central reversal plate 121 to turn on the switch contact therebelow. On the other hand, if the portion near the outer periphery of the operation knob 160 is pressed, the pressing portion 141 located immediately below the portion where the pressing member 130 and the swinging member 140 swing integrally and presses the reversing plate 121 facing this. Then it is inverted and the switch contact directly below is turned on.

Since the reversing plate 121 is made of a metal plate, a high reversing sound is generated when the reversing plate 121 is pressed and reversed, and when the reversed reversing plate 121 returns to its original state. When used for, there was a problem that the sound was recorded during recording.

Of the sounds produced by the reversing plate 121, the reversing sound of the central reversing plate 121, which is reversed by the pressing of the pressing member 130, has been a serious problem. Generally, when the reversing plate 121 is pushed fast to increase the reversing operation speed of the reversing plate 121, the sound becomes louder. However, since the resistance when pressing the pressing member 130 is small, the reversing operation speed when the reversing plate 121 is pressed is high. , Therefore, the reversal sound becomes loud.
On the other hand, when reversing the surrounding reversing plate 121, the swinging member 140, the pressing member 130, and the entire operation knob 160 must be swung, so that the mechanical resistance is higher than the reversing operation speed of the center reversing plate 121. The reversing operation speed accompanied by is slow, and therefore the reversing sound does not become loud. Therefore, the reversal sound of the reversal plate 121 in the center becomes the biggest problem.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object thereof is to provide a multidirectional pressing type switch that can effectively eliminate the reversing sound of the reversing plate. is there.

[0008]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a switch contact around the center thereof, mounts a reversal plate on each switch contact, and presses the switch contacts around the center. Side of the swinging member provided with a pressing portion that penetrates the protruding portion of the pressing member provided with a protruding portion in the center in a vertically movable manner and swings the pressing member to swing the swinging member In the multi-directional pressing switch having a structure in which the pressing portion presses the reversing plate facing the pressing member to turn on the switch contact, the multi-directional pressing switch includes the pressing member when the pressing member is pressed. By installing a reversing sound suppressing member that elastically upwards, the reversing sound of the reversing plate is suppressed by suppressing the reversing operation speed when the pressing member swings and the pressing portion of the swinging member presses the reversing plate. It is characterized by doing.

Further, according to the present invention, another switch contact is provided around the central switch contact, a reversing plate is attached on each switch contact, and a center of the swing member is provided with a pressing portion for pressing the peripheral switch contact. While vertically passing through the pressing portion of the pressing member provided with a pressing portion for pressing the central switch contact, by pressing the pressing member to press the central reversal plate to turn on the switch contact, In the multidirectional pressing type switch having a structure in which the swinging member swings down by swinging the pressing member and the pressing portion on the side that presses the reversing plate facing the swinging member turns on its switch contact. By installing a reversing sound suppressing member that elastically upwards the pressing member when the pressing member is pressed, the direction pressing switch suppresses the reversing operation speed when the pressing unit presses the reversing plate. Reversing plate Which comprises suppressing a retroflex.

Further, the present invention is characterized in that the reversal sound suppressing member is an elastic member which is installed between the pressing member and the swinging member and elastically elastically presses between both members.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an exploded perspective view of a multidirectional pressing type switch according to an embodiment of the present invention, and FIG. 2 is a schematic cross-sectional view thereof (A-A cross-section portion of FIG. 1). As shown in FIG. 1, this multidirectional pressing type switch includes a reversing plate 30, an adhesive sheet 35, a swinging member 50, a reversing sound suppressing member 40, a lid 70, and a pressing member (on a switch substrate 10). In the following embodiments, a "operation knob") 80 is attached. Each component will be described below.

The switch board 10 includes a plurality of metal terminal boards 20.
-1 to 6 are integrally formed so as to be exposed on the bottom surface of the case 11 made of mold resin. Here, FIG. 3 is a perspective view showing only the metal terminal plates 20-1 to 20-6. As shown in the figure, the metal terminal plates 20-1 to 20-6 are independent from each other, and the switch contacts protruding upward are provided at the tips of the metal terminal plates 20-1 to 1,2,3,4,6. 21 is provided, and one metal terminal plate 20-5 has a shape that covers the entire surface of the switch substrate 10 by surrounding the tip side portions of the metal terminal plates 20-1, 1, 2, 3, 4, and 6. Has been formed. The metal terminal plate 20-5 is a plate for common terminals, and small projections 23 for mounting the outer peripheral portion of the reversal plate 30 are provided at a plurality of positions on the surface thereof. Also, the metal terminal board 20-
Small holes 25 are provided at one of the two positions and at three positions of the metal terminal board 20-5. And these metal terminal boards 2
If a case 11 made of a mold resin is molded so as to surround the bottom surface and the outer periphery of 0-1 to 6, the switch substrate 10 shown in FIG.
Is completed. Small holes 2 provided in the metal plates 20-2 and 20-5 at four positions from the surface of the switch substrate 10.
A support bar 13 penetrating 5 projects. Each support bar 13
A small protrusion 27 further projects from the tip of the. Case 1
1. The guide grooves 17, 17 extending in the vertical direction are provided on the outer side of the side wall of No. 1.
Is provided. Groove 2 inside the guide grooves 17, 17
9, 29 are provided.

The reversing plate 30 is a movable contact plate in this embodiment, and is formed by forming an elastic metal plate into a dome shape. When the upper surface of the reversing plate 30 is pressed, the reversing plate 30 is reversed downward to generate a click sensation and its center is formed. Is lowered, and when the pressure is released, the original shape is automatically restored again.

The adhesive sheet 35 is formed by providing an adhesive layer on the lower surface of a thin synthetic resin film, the outer shape of which is housed inside the case 11 of the switch substrate 10 and covers the switch substrate 10. An opening 37 is formed at a position facing the four support bars 13 of the No. 10 so as to penetrate the four support bars 13.

The rocking member 50 is formed by integrally molding a synthetic resin into a substantially disc shape, and a base portion 51 is provided at the center thereof. The base portion 51 has a substantially cylindrical shape, and a through hole 53 is formed in the center of the pressing portion 81 of the operation knob 80, which will be described below, so as to be vertically movable, and the outer peripheral side surface of the upper portion thereof has a curved surface 55 curved in a substantially spherical shape. Has become.

On the other hand, as shown in FIG. 2, at a position on the lower surface of the swinging member 50 outside the base portion 51, four portions are formed in a ring shape at equal intervals.
Two pressing parts 57 are provided (only two are shown in FIG. 2). The distances of the pressing portions 57 from the through holes 53 are the same. Further, four claws 59 are provided so as to project from the upper surface near the outer periphery of the swinging member 50 at equal intervals. Further, by providing the cutout hole 61, the arm 58 that connects the base portion 51 and the pressing portion 57 is formed. Further, two engaging portions 63, 63 are projected from the ring portion 60 on the outer periphery thereof.

The reversal sound suppressing member 40 is formed by forming an elastic material (elastic member) such as rubber or elastomer into a cylindrical shape, and its outer diameter is smaller than the inner diameter of the opening 73 of the lid 70 described below. The inner diameter thereof is set to be larger than the outer diameter of the pressing portion 81 of the operation knob 80 described below. The material of the reversal sound suppressing member 40 may be any elastic material, for example, rubber or elastomer.

The lid 70 is formed by processing a metal plate into a shape that covers the upper surface of the switch board 10. An opening 73 is provided in the center of the lid 70, and the periphery of the opening 73 is tapered upward. By bending in this manner, the lower surface of the tapered surface is used as the base support surface 75. On the other hand, a concave insertion portion 77 through which the claw 59 is inserted is provided at a position (four places) of the lid 70 that faces the claw 59 of the swing member 50. A locking hole 79 is provided around the opening 73 at a position facing each of the small protrusions 27. Further, guide protrusions 78, 78 are provided so as to be bent downward from a pair of outer peripheral portions of the lid 70 facing each other.

The operating knob 80 is formed by integrally molding a synthetic resin into a substantially disk shape, and has an upper surface serving as an operating surface 82 on which a person touches with a finger or the like, and a lower surface thereof as shown in FIG. Columnar pressing part (projection part) from the center downward
81 is projected. A claw engaging portion 83 is provided on the lower surface of the outer periphery of the operation knob 80 at a position facing each claw 59 of the swing member 50. Further, operation parts 85 and 87 are provided at one position in the center of the operation surface 82 of the operation knob 80 and at four positions near the outer periphery, respectively.

First, the five reversal plates 30 are housed inside the switch substrate 10. At this time, the outer peripheries of the respective reversing plates 30 are all mounted on the small projections 23 provided on the metal terminal plate 20-5.
There is no touch on 3, 4, and 6. At this time, the center of each reversal plate 30 faces the switch contact 21 directly above with a predetermined distance.

Next, the adhesive sheet 35 is placed on the upper surface of the reversal plate 30 so as to be in close contact therewith, and adhered onto the switch substrate 10.

Next, the swinging member 50 is placed on it, and the lid 70 is put on it. At that time, each support rod 13 of the switch substrate 10 is inserted into the cutout hole 61 of the swinging member 50, the small protrusion 27 at the tip is inserted into the locking hole 79 of the lid 70, and the tip thereof is thermally caulked. At this time, the guide protrusions 78, 78 are inserted into the guide grooves 17, 17 of the switch board 10. Further, the engaging portions 63, 63 of the swinging member 50 engage with the grooves 29, 29 of the switch board 10 to prevent the swinging member 50 from rotating.

Then, after inserting the inverted sound suppressing member 40 into the pressing portion 81 of the operation knob 80, the operation knob 80 is placed on the lid 70, and the pressing portion 81 of the operation knob 80 is covered.
0 through the opening 73 into the through hole 53 of the swinging member 50, and at the same time, the claws 59 of the swinging member 50 are engaged with the claw engaging portions 83 of the operating knob 80 (claw 59 and claw engaging). The part 83 constitutes a snap-in structure). As a result, the multidirectional pressing type switch shown in FIG. 2 is completed. As shown in the figure, the lower surface of the pressing portion 81 is in contact with or close to the adhesive sheet 35 on the center reversing plate 30, and each pressing portion 57
The lower surface of the abuts against or comes close to the adhesive sheets 35 on the four surrounding reversing plates 30. Further, the reversal sound suppressing member 40 is provided on the back surface of the operation knob 80 and around the pressing portion 81 and the swinging member 50.
Is interposed between the upper surfaces of the base portions 51 of the.

When the center (operating portion 85) of the operating knob 80 is pressed directly below in FIG. 2, the operating knob 80 presses the reversal sound suppressing member 40 and lowers it while crushing it, as shown in FIG. 81 presses the reversal plate 30 in the center and reverses it, and the center of the reversal plate 30 is the metal terminal plate 20.
The switch contact 21 of -2 is touched to turn on between the metal terminal plate 20-2 and the metal terminal plate 20-5. At this time, the reversal sound suppressing member 40 presses the swinging member 50, but since the swinging member 50 is supported by the four reversing plates 35, the swinging member 50 does not descend, but remains stationary at the original position, and only the operation knob 80 descends. To do. When the operation knob 80 is pressed, the reversal sound suppressing member 40 is crushed and serves as a resistance against the force of pressing the operation knob 80. Therefore, the reversing operation speed of the center reversing plate 30 becomes a relatively slow speed, The inversion sound becomes smaller.

Next, when the operation knob 80 is released, the operation knob 80 is pushed up by the elastic return force of the reversing plate 30 and the elastic force of the reversal sound suppressing member 40, and the operation knob 80 is shown in FIG. 2 automatically returns to the original position, and the reversing plate 30 automatically returns to the original shape.

On the other hand, when the operating portion 87 on the left side of the operating knob 80 shown in FIG. 2 is pressed, a force for rotating integrally with the base portion 51 is applied to the pressing portion 81 of the operating knob 80, and the pressing portion 81 eventually penetrates. The operation knob 80 does not move linearly in the hole 53, and the operation knob 80 and the swinging member 50 are integrally rotated while the operation knob 80 is crushing the reversal sound suppressing member 40 a little, so that the operation portion 87 is pressed immediately below the operation portion 87. The part 57 presses and reverses the reversing plate 30 facing it, the center of the reversing plate 30 contacts the switch contact 21 therebelow, and the metal terminal plate 20-4 and the metal terminal plate 20-5 are turned on. At this time, the reversal sound suppressing member 40 is crushed and serves as a resistance against the force of rocking while pushing the operation knob 80, so that the reversing speed of the reversing plate 30 becomes slow and the reversing sound becomes small. Further, the reversal of the reversing plate 30 and its automatic return are performed by the rocking motion of the rocking member 50 and the operation knob 80 as a whole, and the elasticity of the arm 58 when the rocking member 50 is rotated acts more gently. Thus, the sound at the time of reversing the reversing plate 30 and at the time of automatic recovery is further reduced.

A curved surface 55 provided on the base portion 51 is provided so that the operation knob 80 and the swing member 50 can swing together easily.
Is brought into sliding contact with the base support surface 75 of the lid 70.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments, and various modifications are possible within the scope of the claims and the technical idea described in the specification and drawings. Can be modified. Note that any shape, structure, or material not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as the functions and effects of the present invention are exhibited.

For example, in the above embodiment, the reversal sound suppressing member 4 is used.
Although the elastic material is used as 0, a reversal sound suppressing member 40 'composed of a spring may be used instead of the elastic material as shown in FIG. Inversion sound suppressing member 40 'composed of this spring
Emits between the operating knob 80 and the lid 70. Even with such a configuration, the reversal of the central reversing plate 30 is always performed by the operation knob 8 to which the elastic force of the reversal sound suppressing member 40 'is applied.
Since it is performed by the pressing portion 81 of 0, the sound can be reduced. It should be noted that the reversal sound suppressing member 40 including a spring
The ′ may be configured so as to repel between the operation knob 80 and the swinging member 50. On the other hand, the reversal sound suppressing member 40 made of an elastic material shown in FIG. 2 may be attached so as to elastically spring between the operation knob 80 and the lid (fixed member) 70 as shown in FIG.

In the above embodiment, the switch contact 21 is also provided in the center, the reversing plate 30 is installed on the switch contact 21, and the reversing plate 30 is pressed by the pressing portion 81 of the pressing member 80. Some push-type switches have a structure in which the central switch contact 21 and the reversal plate 30 thereon are omitted, but the present invention can also be applied to a multidirectional push-type switch having such a structure. Even in that case, the reversal sound suppressing member 40 is effective in silencing the surrounding switch contacts 21 when pressed. In the case of this multidirectional pressing type switch, the pressing portion 81 is configured as a protruding portion.

Further, in the above-described embodiment, an example in which the reversal sound suppressing member 40 is applied for preventing the sound when the central reversing plate 30 is reversed by the operation knob 80 of the multidirectional pressing type switch is shown, but the present invention is embodied in these embodiments. The present invention is not limited to the form, and is applicable not only to multi-directional pressing type switches of various other structures but also to a single pressing type switch, that is, a reversing plate is mounted on the switch contact and a pressing member is placed on the reversing plate. It can also be applied to a pressing type switch having a structure in which the pressing portion is arranged and the switch contact is turned on by pressing and reversing the reversing plate by the pressing portion.

Although the movable contact plate is used as the reversing plate in each of the above embodiments, a click plate may be used.

[0033]

As described in detail above, according to the present invention, there is an excellent effect that the reversal sound of the reversal plate can be effectively eliminated.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a multidirectional pressing switch according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view of a multidirectional pressing switch according to an embodiment of the present invention.

FIG. 3 is a perspective view showing only metal terminal plates 20-1 to 20-6.

FIG. 4 is an operation explanatory diagram of a multidirectional pressing switch.

FIG. 5 is a schematic cross-sectional view of another multidirectional pressing switch.

FIG. 6 is a schematic cross-sectional view of a conventional multidirectional pressing switch.

[Explanation of symbols]

10 switch board 11 cases 20 (20-1 to 6) Metal terminal board 21 switch contacts 30 reverse plate 35 Adhesive sheet 40 Reverse sound suppression member 50 Swing member 51 base 57 Pressing part 70 Lid 80 Pressing member (operation knob) 81 Pressing part (protruding part) 40 'Reversal sound suppression member

Claims (3)

[Claims] 1. A switch contact is provided around the center, a reversing plate is attached on each switch contact, and a protrusion is provided at the center of a swing member provided with a pressing part for pressing the switch contacts around the center. The protruding portion of the provided pressing member is vertically movably penetrated, and by swinging the pressing member, the swinging member swings and the pressing portion on the lower side presses the reversing plate facing it. In a multidirectional pressing switch having a structure for turning on a switch contact, in the multidirectional pressing switch, by installing a reversal sound suppressing member that elastically pushes the pressing member upward when the pressing member is pressed, A multidirectional pressing switch characterized in that a reversing sound of the reversing plate is suppressed by suppressing a reversing operation speed when the pressing member swings and the pressing portion of the swinging member presses the reversing plate. 2. A separate switch contact is provided around the central switch contact, a reversing plate is attached on each switch contact, and a central portion of the swing member provided with a pressing portion for pressing the peripheral switch contact is provided. The pressing member of the pressing member that presses the switch contact is vertically movably pierced, and by pressing the pressing member, the central reversal plate is pressed to turn on the switch contact, and at the same time, press the pressing member. A multidirectional pressing type switch having a structure in which a swinging member swings and a pressing portion on the side on which the swinging member is lowered pushes a reversing plate facing the swinging member to turn on a switch contact thereof. By providing the switch with a reversing sound suppressing member that elastically upwards the pressing member when the pressing member is pressed, the reversing operation speed when the pressing portion presses the reversing plate is suppressed and the reversing plate is suppressed. Suppresses the reversal sound A multi-directional push type switch that is controlled. 3. The multi-directional device according to claim 1, wherein the reversal sound suppressing member is an elastic member that is installed between the pressing member and the swinging member and elastically elastically presses between both members. Push switch.