JP2002190237A - Multiway switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an operation error of a switch by having an operation member inclined in an accurate direction even when a user carries out an operation that is not so accurate in the case where the target switch means is operated by inclining the operation member in the target direction. SOLUTION: In the multiway switch, a case 1 provided with a multiple switch means S, S1 to S4, the operation member 2 to selectively operate each switch means and intermediate spring plates 3 interposed between the operation members 2 and each switch means are provided. In this case, pressing parts 10a to 10d on the circumference of a tilt move member 2d of the operation member 2 is mounted on an inner edge part 3c of each spring plate piece 3d, a rectangular shaft 2c inserted to a shaft inserting hole 6 of a top plate 1b, a circular shaft 2b is projected on the top plate 1b and furthermore, a spherical top surface 8 of the tilt move member 2d is brought into a state of pressurized contact with a spherically recessed surface 9 on the underside surface of the top plate 1b by being energized upward with repulsive force of each spring plate piece 3a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This is a multi-directional switch used for remote control of various electronic devices such as televisions and videos, portable telephones, and the like. Open / close (ON, OFF) operation of a plurality of switch means arranged on a case bottom plate. Switch is selectively performed by tilting the operation member toward the target switch means and vertically lowering the center position (neutral).

[0002]

2. Description of the Related Art Recently, a multi-directional switch which can be switched to a multi-directional circuit has been used for a remote controller of a television, a video, and other various electronic / electronic devices, a cellular phone, and the like. A multi-directional switch is widely used which tilts in front, rear, left, right, etc. directions to perform each switching action, and vertically switches at a center position (neutral) to perform a switching action.

However, this type of conventional multi-directional switch is designed so that when a user tilts the operating member in a desired direction in order to perform a desired switching action, the operating member is tilted without a very accurate direction. However, there is a problem in that an erroneous operation occurs in which the device is tilted out of the intended direction.

In addition, when the user vertically lowers the operating member from the center position, if the operating member is unintentionally lowered at the same time as the lowering operation, the switch operation by the vertical lowering is not performed accurately. However, there has been a problem that an erroneous operation of pressing the switch means due to the tilt may occur.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a method for operating a target switch means by tilting an operation member in a target direction, even when a user performs an operation that is not very accurate.
By tilting in the correct direction to solve the traditional issues,

Further, when the switch is operated by vertically lowering the operating member, erroneous tilting of the operating member is suppressed, and the operating member is always lowered vertically to solve the conventional problem.

[0007]

According to the present invention, there is provided a push switch comprising a fixed contact on the bottom plate side and a diaphragm spring-type movable contact worn on the fixed contact at equal angles around the center of the inner surface of the bottom plate of the insulating case and the periphery thereof. A tilting member such as a disk provided with each pressing portion at an upper position facing each switch means is provided at the lower end of the shaft, and the shaft is passed through a shaft insertion hole of a top plate of the case. In a multi-directional switch comprising an operating member having a portion protruding above the top plate,

A set dimension portion protruding above the top plate of the shaft of the operating member is formed as a circular axis, a set dimension portion below the set dimension is formed as a square axis, and the diagonal of the square of the cross section is defined as the diameter of the circular axis. And the diameter of the shaft insertion hole of the top plate is formed slightly larger than the diameter of the circular shaft, and around the shaft insertion hole, relative to each of the switch means and each pressing portion. Square grooves with a groove width slightly larger than the thickness of the square shaft are formed at every equal angle

When the upper end of the operation member protruding above the top plate is tilted in the target direction, a square shaft having a thickness smaller than the groove width is fitted into the rectangular groove in the target direction and slides in the target direction at the same time. ,
The tilting member at the lower end is tilted so that the pressing portion depresses the movable contact of the target switch means and presses against the fixed contact (switch O).
N)

When the upper end of the operating member is pressed down,
The circular shaft descends and fits into the shaft insertion hole of the top plate, and since its diameter is larger than the groove width of the square groove, it does not fit into any square groove, and therefore descends only in the vertical direction, and The object is solved by a multidirectional switch, wherein the central pressing portion is provided so as to press-contact (switch ON) the fixed contact by recessing the movable contact of the central switch means.

Further, the present invention provides a case having a plurality of switch means, an operation member for selectively operating each switch means, and an intermediate spring provided between the operation member and the switch means. Made of boards,

The insulating case is provided with fixed contacts at equal angles around a center fixed contact at the center of the inner surface of the bottom plate, and each fixed contact is covered with a diaphragm spring type movable contact.
The center push-type switch means and each switch means are provided at equal intervals around the center, and a square is formed at an equal angle around the shaft insertion hole of the operation member opened in the center of the top plate and opposed to the above switch means. In addition to forming the groove, the vicinity of the shaft insertion hole and the square groove on the lower surface of the top plate are formed in a spherical concave surface corresponding to the spherical surface of the tilting member of the operation member, and the diameter of the shaft insertion hole is slightly smaller than the diameter of the circular shaft of the operation member. The groove width of the square groove is formed slightly larger than the thickness of the square shaft,

The operating member includes a knob, a shaft, and a tilting member integrally, and the shaft has a set dimension as a circular axis from the lower end of the knob and a square axis as a set dimension from the lower end of the circular axis. The tilting member is provided at the lower end of the square axis, the upper surface is formed in a substantially hemispherical surface, the pressing portions protrude from the center of the lower surface, and each pressing portion protrudes at an equal angle of the circumference. Opposite to the switch means, the diameter of the circular axis is formed to be the same as or slightly larger than the diagonal of the square cross section of the square axis,

[0014] The intermediate spring plate is formed by narrowing each of the rhombic leaf spring pieces, which are arranged above and above the peripheral push switch means except for the push switch means at the center of the case bottom plate, with a narrow connecting piece in a circular shape. A small projection protruding from a lower surface of each leaf spring piece, and an inner end of each leaf spring piece is provided to be inclined so as to rise up to a set dimension from an outer end,

The outer end of each leaf spring piece of the intermediate spring leaf is supported on the inner peripheral edge of the case, and the small projection of each leaf spring piece is positioned at the center of the upper surface of each switch means except the center switch means. Place each pressing portion of the circumference of the tilting member of the operating member on the inner end of each leaf spring piece, insert a square shaft into the shaft insertion hole of the top plate, and place the circular shaft on the top plate. The problem is solved by a multidirectional switch in which the operation member is installed in a state in which the spherical upper surface of the projecting and tilting member is urged upward by a resilient force of each leaf spring piece and pressed against the spherical concave surface of the lower surface of the top plate and pressed. Things.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A plurality (five in the illustrated example) of switch means S, S1
1 provided with the switches S and S1 to S4.
An operating member 2 for selectively operating S4, and an intermediate spring plate 3 provided between the operating member 2 and the switch means S, S1 to S4;

The insulating case 1 has fixed contacts 4a to 4b at equal angles around the center fixed contact 4 at the center of the inner surface of the bottom plate 1a.
And each of the fixed contacts 4, 4a to 4d is provided with a diaphragm spring-shaped movable contact 5, 5a to 5d so that the center push type switch means S and the switch means S1 to S4 are provided at regular intervals around the center. And the switch means S around the shaft insertion hole 6 of the operation member formed in the center of the top plate 1a.
Square grooves 7 are formed at equal angles opposite to 1 to S4, and the vicinity of the shaft insertion hole 6 and the square grooves 7 on the lower surface of the top plate 1a is formed into a spherical concave surface 9 that matches the spherical surface 8 of the tilting member 2a of the operation member 2. The diameter D3 of the shaft insertion hole 6 is formed slightly larger than the diameter D1 of the circular shaft 2b of the operation member 2, and the groove width L2 of the square groove 7 is slightly larger than the thickness L1 of the square shaft 2c. Formed in the

The operating member 2 includes a knob 2a, a shaft and a tilting member 2
The shaft is formed integrally with the circular shaft 2b from the lower end of the knob 2a, and the square shaft 2c from the lower end of the circular shaft 2b. The upper surface is formed in a substantially hemispherical surface 8 and the pressing portion 10 protrudes from the center of the lower surface.
10d, the pressing portions 10, 10a to 10d are opposed to the respective switch means S, S1 to S4 of the bottom plate 1a of the case 1, and the diameter D1 of the circular shaft 2b is set to a diagonal line D2 of a square cross section of the square shaft 2c. Is the same as or slightly larger than

The intermediate spring plate 3 has a narrow width such as a rhombus-shaped leaf spring piece 3a disposed above and opposed to peripheral switch means S1 to S4 except for the push switch means S at the center of the bottom plate 1a of the case 1. A state in which the connecting pieces 3b are connected in a circle to form a small projection 3c on the lower surface of each leaf spring piece 3a, and the inner end 3d of each leaf spring piece 3a rises up to the set dimension from the outer end 3e. That is provided at an angle,

The outer end 3e of each leaf spring piece 3a of the intermediate spring leaf 3 is supported on the inner peripheral edge 1c of the case 1, and the small protrusion 3c of each leaf spring piece 3a is a switch means except for the switch means S at the center. The operation member 2 is located at the center of the upper surface of S1 to S4.
Of the tilting member 2d is placed on the inner end 3c of each leaf spring piece 3d, and the square shaft 2c is inserted through the shaft insertion hole 6 of the top plate 1 to form a circle. The shaft 2b is projected above the top plate 1, and the spherical upper surface 8 of the tilting member 2d is urged upwardly against the spherical concave surface 9 of the lower surface of the top plate 1b by the resilient force of each leaf spring piece 3a to press the operating member 2 in pressure. Is a multi-directional switch.

In the above-mentioned multidirectional switch, the diameter of the circular shaft 2b of the operating member 2 is D1, the diagonal of the square cross section of the square shaft 2c is D2, the thickness is L1, and the shaft insertion hole of the top plate 1b of the case 1 is provided. 6, D1 ≧ D2, D1 <D3, L1 <L2, D1> L, where D3 is the diameter of D3 and the groove width of the rectangular groove 7 is L2.
Set to 2.

Except for the central switch means S, the intermediate spring piece 3 is provided with switch means S1 delivered at equal angles around the switch means S1.
Each leaf spring piece 3a, such as a rhombus, disposed above and opposed to S4 is connected to each other in a circle by a narrow connecting piece 3b, and a small projection 3c protrudes from the lower surface of each leaf spring piece 3a. Further, the inner end 3d of each leaf spring piece 3a is provided so as to be inclined so as to rise up to a set dimension from the outer end 3e, and these are provided by pulling out and pressing a single spring plate. Things.

When the operating member 2 is vertically lowered, the tilting member 2
d When the pressing portion 10 at the center of the lower surface depresses the movable contact 5 of the switch means S at the center of the bottom plate 1a of the case 1 and presses (switches on) the fixed contact 4, the pressing portions 10a to 10d around the tilting member 2d The dimension L3 when each leaf spring piece 3a of the intermediate spring leaf 3 is bent down in an anti-curvature manner is tilted by fitting the operating member 2 with its square shaft 2c fitted in the square groove 7 and the pressing portions 10a to 10d of the tilting member 2d. When the leaf spring piece 3a of the intermediate spring piece 3 is deflected downward, the movable contacts 5a to 5d are depressed by the small projections 3c, and the leaf spring piece 3a is deflected downward when pressed against the fixed contacts 4a to 4d (switch ON). L3 <L3 <
By setting to L4, when the switch means S at the center is operated by the vertical lowering of the operation member 2 (switch ON)
In order to prevent malfunction (switch ON) of the surrounding switch means S1 to S4.

[0024]

When the knob 2a of the operating member 2 is tilted in the target direction, the square shaft 2c is fitted and guided in the rectangular groove 7, the tilting member 2d is tilted, and its pressing portion (eg, 10a) is moved to the intermediate spring plate. The leaf spring piece 3a of FIG. 3 is depressed in a bent direction, and the small protrusion 3c of the leaf spring piece 3a is moved by a movable contact (e.g.
a) is depressed and pressed into the fixed contact (eg, 4a) (switch O).
N).

As described above, as soon as the operating member 2 is tilted, the square shaft 2c has a groove width L slightly larger than its thickness L1.
Since it is fitted into the second rectangular groove 7 and guided accurately in its tilting direction, there is an excellent effect that there is no possibility of malfunction.

When the tilting pressing force of the operating member 2 is released, the tilting member 2d is pushed up by the elastic restoring force of the leaf spring piece 3a of the intermediate spring plate 3, and is restored to the center position (neutral).

Next, when the knob 2a of the operating member 2 is pressed down, the circular shaft 2b is slightly larger in diameter D1 than its diameter D1.
2, the leaf spring pieces 3a are vertically lowered by the pressing portions 10a to 10d of the tilting member 2 while being bent downward by the guide, and the pressing portion 10 at the center of the tilting member 2 is centered. The movable contact 5 of the switch means S is recessed and pressed against the fixed contact 4 (switch ON).

At this time, since the diameter D1 of the circular shaft 2b is larger than the groove width L2 of each of the rectangular grooves 7, it does not fit into any of the rectangular grooves 7, and therefore does not tilt, so that the shaft insertion hole is not formed. To accurately descend vertically with the guidance of 6, as before,
There is an excellent effect that there is no possibility of malfunction due to erroneous tilting in any direction during vertical descent.

Further, in the above description, the downwardly bent dimension L3 of the leaf spring piece 3a by the tilting member 2d when the operating member 2 is vertically lowered is set to be lower than the leaf spring piece 3a by the tilting member 2d when the operating member 2 is tilted. L3 <L compared to the recurved dimension L4
Since it is set to 4, there is no possibility that when the switch means S at the center is vertically lowered and the center switch means S is turned on, the other switch means (S1 to S4) are simultaneously turned on by mistake.

When the depression pressure of the knob is released, the tilting member 2 is vertically lifted and restored by the elastic restoring force of each leaf spring piece 3a that has been bent downward, so that the circular shaft 2b in the shaft insertion hole 6 is lifted. Board 1b
It returns to the original state by projecting upward.

Since the movable contact is not directly pressed by the tilting member of the operating member but is depressed via the intermediate spring plate, the movable contact is excessively pressed by the tilting member and the spring plate of the movable contact is depressed. In other words, there is no danger of permanent deformation of the movable contact spring plate due to excessive load.

By using the intermediate spring plate, it is not necessary to press the center of the movable contact with the pressing portion of the tilting member, so that the tilting member of the operating member can be reduced in size and thereby the entire switch can be reduced in size. There are features.

[Brief description of the drawings]

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

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is an operation explanatory view when the operation member of FIG. 2 is tilted.

FIG. 4 is an operation explanatory diagram when the operation member of FIG. 2 is vertically lowered.

FIG. 5 is an explanatory diagram of a set dimension relationship between a circular axis and a square axis of an operation member, a shaft insertion hole and a square groove of a case top plate.

FIG. 6 is a plan view of an intermediate spring plate.

FIG. 7 is a sectional view taken along line BB of FIG. 6;

[Explanation of symbols]

S Switch means (center) S1 to S4 Switch means (peripheral) D1 Diameter of circular axis D2 Diagonal line of square cross section of square axis D3 Diameter of shaft insertion hole L1 Thickness of square axis L2 Groove width of square groove L3 Plate Set reversing descending dimension of spring piece (vertical) L4 Set recurving descending dimension of leaf spring piece (tilt) 1 Case 1a Bottom plate 1b Top plate 1c Inner rim 2 Operating member 2a Knob 2b Circular axis 2c Square axis 2d Tilting member Reference Signs List 3 intermediate spring plate 3a leaf spring piece 3b connecting piece 3c small projection 3d inner end 3e outer end 4 fixed contact (center) 4a-4d fixed contact (peripheral) 5 movable contact (center) 5a-5d movable contact (peripheral) 6 Shaft insertion hole 7 Square groove 8 Spherical surface 9 Spherical concave surface 10 Pressing part (center) 10a-10d Pressing part (periphery)

Claims (5)

[Claims] 1. A push-type switch means comprising fixed contacts on the bottom plate side and movable contacts of a diaphragm spring type mounted on the fixed contacts is provided at equal angles around the center of the inner surface of the bottom plate of the insulating case and the periphery thereof. A tilting member such as a disk provided with each pressing portion at an upper position opposite to each switch means is provided at the lower end of the shaft, and the shaft is passed through the shaft insertion hole of the top plate of the case and the tip end thereof is placed on the top plate. In a multidirectional switch comprising an operating member protruding, a set dimension portion protruding on the top plate of the shaft of the operation member is formed on a circular axis, and a set dimension portion below the same is formed on a square axis. The diagonal of the cross-sectional square is set to be equal to or slightly smaller than the diameter of the circular shaft, and the diameter of the shaft insertion hole of the top plate is formed slightly larger than the diameter of the circular shaft, and around the shaft insertion hole, Opposite to each switch means and each pressing part A rectangular groove having a groove width slightly larger than the thickness of the square axis is formed at each angle. When the upper end of the operation member protruding above the top plate is tilted in the target direction, the thickness is smaller than the groove width. At the same time, the square shaft fits into the square groove in the target direction and slides in the target direction, and at the same time, the tilting member at the lower end tilts so that the pressing portion depresses the movable contact of the target switch means and presses against the fixed contact ( When the upper end of the operating member is pressed down, the circular shaft descends and fits into the shaft insertion hole of the top plate, and its diameter is larger than the width of the rectangular groove. The tilting member is lowered only in the vertical direction, and the center pressing portion of the tilting member is provided so that the movable contact of the center switch means is depressed and crimped (switch ON) to the fixed contact. , Multi-directional switch. A case provided with a plurality of switch means, an operation member for selectively operating each switch means, and an intermediate spring plate interposed between the operation member and the switch means; The insulating case is provided with fixed contacts at equal angles around the center fixed contact at the center of the bottom plate inner surface, and each fixed contact is covered with a diaphragm spring type movable contact, so that the center push type switch means and its Each switch means is provided at equal intervals around the periphery, and at the center of the top plate, a square groove is formed around the shaft insertion hole of the operation member at equal angles opposite to the respective switch means, and the lower surface of the top plate The vicinity of the shaft insertion hole and the square groove is formed in a spherical concave surface corresponding to the spherical surface of the tilting member of the operation member, and the diameter of the shaft insertion hole is formed slightly larger than the diameter of the circular shaft of the operation member. Groove width is narrower than square shaft A is obtained by forming the large, the operating member is made integrally includes knob and the shaft and the tilting member,
The shaft has a set dimension as a circular axis from the lower end of the knob, and a set dimension as a square axis from the lower end of the circular axis. The tilting member is provided at the lower end of the square axis, and the upper surface is formed as a substantially hemispherical surface. The pressing portion protrudes from the center of the lower surface, and each pressing portion protrudes at an equal angle of the circumference. Each pressing portion is opposed to each switch means of the case bottom plate. The intermediate spring plate is formed so as to be the same as or slightly larger than the diagonal line, and each leaf spring such as a rhombus or the like disposed above and opposed to each peripheral push switch means excluding the push switch means at the center of the case bottom plate. Pieces are connected in a circle with narrow connecting pieces, small projections are projected on the lower surface of each leaf spring piece, and the inner end of each leaf spring piece rises to the set dimension from the outer end. The outer end of each leaf spring piece of the intermediate spring leaf is provided as a case. It is supported on the inner peripheral edge, and the small protrusion of each leaf spring piece is positioned at the center of the upper surface of each switch means except the center switch means, and each pressing portion of the circumference of the tilting member of the operating member is Placed on the inner end of each leaf spring piece, insert a square shaft into the shaft insertion hole of the top plate, project the circular axis on the top plate, and replace the spherical upper surface of the tilting member with the spherical concave surface of the lower surface of the top plate. A multi-directional switch comprising an operating member installed in a state in which the operating members are pressed and pressed upward by the elastic force of each leaf spring piece. 3. The diameter of the circular axis of the operation member is D1, the diagonal of the square cross section of the square axis is D2, the thickness is L1, the diameter of the shaft insertion hole of the case top plate is D3, and the groove width of the square groove is When L2, D1 ≧ D2, D1 <D3, L1 <L2, D1> L2
The multidirectional switch according to claim 1, wherein the switch is set to: 4. The intermediate spring piece, except for the center switch means, has a narrow width between each of the leaf spring pieces, such as rhombuses, disposed above and opposite to the respective switch means distributed at equal angles around the periphery. The connecting pieces are connected in a circle shape, small projections are protruded on the lower surface of each leaf spring piece, and the inner end of each leaf spring piece is provided with a slope so that it rises to the set dimension from the outer end. 3. The multi-directional switch according to claim 2, wherein these are provided by press-forming a single spring plate. 5. When the pressing member at the center of the lower surface of the tilting member is depressed by the movable contact of the switch means at the center of the case bottom plate and pressed against the fixed contact (switch ON) by the vertical lowering of the operating member, each of the components around the tilting member is pressed. The pressing member is tilted by fitting the square axis into the square groove when the pressing portion descends the respective leaf spring pieces of the intermediate spring plate in an anti-curvature manner. The leaf spring of the intermediate spring piece is pressed by the pressing portion of the tilting member. The piece is bent down in a reverse direction, the movable contact is depressed by the small projection and pressed against the fixed contact (switch O).
N) Dimension L4 when the leaf spring piece descends in a bent direction when
Is set to L3 <L4 so that the operation of the central switch means (the switch O
N), surrounding switch means malfunction (switch ON)
The multidirectional switch according to claim 2, wherein the switch is provided so as not to perform the switching.