JP2001184974A - Push button switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a functional push button switch in an easy manner. SOLUTION: A plunger 4 is disposed in a housing 13 in such a manner that it can be moved freely in the vertical direction. A sliding-type, clip-shaped movable contact segment 12 is engaged with the plunger 4. At least one base on which contact terminals 23, 24 corresponding to the movable contact segment 12 are disposed is inserted into the housing 13. At least one block 30 carrying a light emitting diode 36 is inserted into the housing 13 in parallel to the base 22 and thus disposed in the housing 13. Further, a vertical segment 7 is grafted to the plunger 4, and a convex portion 8 is formed which is protruded from the vertical segment 7. Also, in the housing 13, there is a plate spring-shaped changeover plate 17 having a tongue segment 18 which resiliently slides on the convex portion 8. The changeover plate 17 is disposed in the housing 13 in such a manner that it can be moved in the vertical direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a push button switch.

[0002]

2. Description of the Related Art FIGS. 10 and 11 show a conventional push button switch. FIG. 10 shows a push-button switch including a microswitch-type contact opening / closing mechanism, which is widely applied to a push-button switch having an illumination unit. Also,
FIG. 11 shows a tactile switch using a disk-shaped disk as a movable contact piece, and mainly shows an example of a push button switch having a short stroke and a click operation feeling.

[0003]

There are various demands for the operation mode of the push button switch depending on the type of equipment and the preference of the operator. For example, in general equipment, a clear operation sound and a light operation feeling are preferred, while heavy equipment or the like has a large operation force and cannot be easily switched. In broadcast equipment, audio equipment, and the like, particularly, silence is required, and a push button switch without operation sound tends to be required. In addition, a compact illuminated push button switch having a high mounting density is required. Despite the above background, the operation feeling and the operation sound cannot be separated from each other in the conventional push button switch, and the operation sound and the operation feeling cannot be set separately. Further, in the conventional push button switch, since the arrangement method of the contact opening / closing mechanism is developed in a planar manner, the size of the switch cannot be reduced to a certain size or more, which is a hindrance to high-density mounting.

[0004]

In order to solve the above-mentioned problems, a plunger is disposed on a housing so as to be vertically movable, and a sliding clip-shaped movable contact piece is engaged with the plunger and the movable plunger is moved. At least one base provided with contact terminals corresponding to the contact pieces is fitted to the housing, and at least one block body on which a light emitting element is mounted is fitted together with the base to the housing. Then, a hanging piece is implanted in the plunger, and a convex portion protruding from the hanging piece is formed, and a leaf-spring-like switching plate having a tongue piece that resiliently slides with the convex portion is disposed in the housing. . Further, the switching plate is configured to be vertically movable in the housing.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS By disposing a contact mechanism portion and a light emitting element portion of a push button switch, and a switching plate as separate blocks, etc., in a switch housing portion,
Various push button switches in various combinations such as a circuit configuration and a type of a light emitting element can be configured in a small space. Further, regarding the operation function, the operation click feeling and the presence or absence of the operation switching sound can be freely combined depending on whether the switching plate can be moved up and down.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present embodiment will be described below in detail with reference to the drawings. FIG. 1 is a front sectional view showing a first embodiment of a push button switch of the present invention, and FIG. 2 is a side sectional view of a contact portion thereof. FIG. 3 is a side sectional view of the light emitting element portion, and FIG. 4 is an exploded perspective view thereof.

In these figures, a contact terminal A23 and a contact terminal B24 are provided on a base 22 constituting a contact mechanism by insert molding, and are provided below a housing 13 which is a housing of a push button switch. The square hole 15 thus formed and the convex portion 27 formed on the side of the base 22 are fixed by uneven fitting.

A block 30 on which a light emitting diode 36 is mounted in parallel with the base 22 is fitted into a convex portion 31 formed on a side portion of the block 30 and a square hole 16 formed below the housing 13 so as to be uneven. Is fixed. In this embodiment, the light emitting diode 36 is a multicolor light emitting element,
The terminal type is used, and each terminal 37 is led out from the bottom of the switch as it is.

On the other hand, a button 1 and a filter 3
An engaging groove 10 is drilled in the support 9 of the plunger 4 fitted with the plug, and a clip-shaped movable contact piece 12 is inserted and arranged in the engaging groove 10 so as to sandwich the contact terminal A23. The contact terminal A23 and the contact terminal B24 are assembled so as to be electrically short-circuited by the pressing operation of the plunger 4. Further, the plunger 4 is formed in a hollow shape so that the light emitting diode 36 penetrates and the reflecting surface 5 is formed, so that the light of the light emitting diode 36 can be illuminated upward without waste.

A hanging piece 7 is implanted downward from the inner surface of the plunger 4, and a projection 8 is formed at a substantially middle portion of the hanging piece 7. Further, a switching plate 17 made of an elastic member such as stainless steel for a spring is vertically disposed between the step portion 14 formed on the inner surface of the housing 13 and the block 30. The switching plate 17 has a tongue piece 1 formed in a convex portion 19 shape.
A depression 8 is formed, and the projection 8 of the hanging piece 7 of the plunger 4 is resiliently slid by a pressing operation to create an operation click feeling. FIG. 5 is an external view of the plunger 4 and the switching plate 17 showing the configuration of the resilient sliding portion.

FIG. 6 is a front sectional view showing a pressed state of the operation unit. When the pressing force is released from the button 1, the state is restored to the state before the pressing by the returning force of the coil spring 35.

Since the push-button switch thus configured employs a clip-type sliding contact mechanism in the contact mechanism, there is almost no switching sound from the contact portion, and the operating feeling is also felt in the resilient sliding portion. However, the switching sound is hardly generated, and a push button switch most suitable for audio equipment and the like can be constructed.

A clip-type sliding contact mechanism is provided in the operating axis direction, and a plate-like switching plate 17 is mounted on the housing 1.
3, the light-emitting diode 36 can be arranged substantially at the center of the switch, so that the illuminated push button switch can be configured extremely compactly.

FIG. 7 shows a second embodiment of the push button switch according to the present invention.
FIG. 8 is a front cross-sectional view illustrating an example, and FIG. 8 is a front cross-sectional view illustrating a pressing operation state thereof. In the present embodiment, only the switching plate 117 is different from the first embodiment described above, and the other configuration is the same.

In the present embodiment, the height of the switching plate 117 is smaller than that of the first embodiment, and a clearance is generated due to a difference in size between the switching plate 117 and the facing dimension between the housing 113 and the block 130. Switching plate 1
17 are arranged so as to be movable up and down. Therefore, in the steady state shown in FIG.
04 is pressed downward by the elastic force of the convex portion 108 and the tongue piece 118.

While the button 101 is depressed and the switching plate 117 is pressed upward in the state of FIG. 8, the switching plate 117 is vigorously flipped upward at the time when the resilient sliding portion gets over the convex portion 119, and It acts so as to generate a clear switching sound when hitting the step 114 of the 113.

Further, when the pressing force on the button 101 is released, the plunger 104 is raised by a return coil spring (not shown), and the switching plate 117 is flipped downward to abut the block 130, so that the pressing time is reduced. Similarly, a switching sound is generated.

FIG. 9 is a front sectional view showing another embodiment of the push button switch according to the present invention. The contact circuit forms two poles, and the mounting form of the switch and the type of the light emitting element 236 are different from those of the above embodiment. Is different.

In addition, a plurality of blocks can be provided side by side to change the light emission mode, or a plurality of bases can be combined to form a multi-pole push button switch. Does not exclude.

[0020]

As described above, according to the present invention, the following effects can be obtained. (1) At least one base in which a plunger is disposed in a housing so as to be movable up and down, a sliding clip-shaped movable contact is locked to the plunger, and a contact terminal corresponding to the movable contact is disposed. Is fitted to the housing, and at least one block body on which a light emitting element is mounted is fitted to the housing together with the base, so that various combinations of the block body and the base can be achieved, and the number of circuits can be increased. Selection and lighting conditions can be freely combined. (2) Since the contact part, the light-emitting element, and the switching part are separately provided for each function and disposed in the housing, the structure of each part as a single unit can be simplified, and equipment investment such as mold costs can be suppressed. Can be. (3) Since the contact part and the light emitting element are separated into a base and a block body for each function, and a leaf spring-like switching plate is provided,
The push button switch can be made very compact. (4) The contact portion and the light emitting element are separated into a base and a block body for each function and a leaf spring-like switching plate is provided.
Operation feeling and operation stroke can be easily created as compared with conventional micro switches and tactile switches. (5) Since the operation feeling that does not directly interlock with the contact switching part is provided by the switching plate, the presence or absence of the operation click feeling can be easily selected. (6) Since the switching plate is disposed in the housing so as to be vertically movable, it is possible to easily set whether or not there is an operation sound at the time of resilient sliding.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing a first embodiment of a push button switch of the present invention.

FIG. 2 is a side sectional view of a contact portion showing the first embodiment of the push button switch of the present invention.

FIG. 3 is a side sectional view of a light emitting element portion showing a first embodiment of the push button switch of the present invention.

FIG. 4 is an exploded perspective view showing a first embodiment of the push button switch of the present invention.

FIG. 5 is an external view of a plunger 4 and a switching plate 17 showing the configuration of a resilient sliding portion of the first embodiment of the push button switch of the present invention.

FIG. 6 is a front sectional view showing a pressing operation state of the first embodiment of the push button switch of the present invention.

FIG. 7 is a front sectional view showing a second embodiment of the push button switch of the present invention.

FIG. 8 is a front sectional view showing a push operation state of a push button switch according to a second embodiment of the present invention.

FIG. 9 is a front sectional view showing another embodiment of the push button switch of the present invention.

FIG. 10 is a sectional view showing a conventional push button switch.

FIG. 11 is a cross-sectional view illustrating another conventional push button switch.

[Explanation of symbols]

 1, 101, 201 Button 2, 8, 19, 27, 31, 108, 119 Convex part 3, 203 Filter 4, 104 Plunger 5 Reflective surface 6 Concave part 7, 207 Hanging piece 9 Support part 10 Engagement groove 11, 28 Boss 12, 212 Movable contact piece 13, 113, 213 Housing 14, 114, 214 Step 15, 16 Square hole 17, 117, 217 Switching plate 18, 118 Tongue piece 22, 222 Base 23, 223 Contact terminal A 24, 224 Contact Terminal B 25, 26, 37, 225 Terminal 30, 130, 230 Block 32 Hole 33 Projection wall 34 Support 35 Coil spring 36 Light emitting diode 236 Light emitting element

Claims (3)

[Claims] At least one of a housing, a plunger is vertically movable, a sliding clip-shaped movable contact piece is fixed to the plunger, and a contact terminal corresponding to the movable contact piece is arranged. A push button switch, wherein: one base is fitted to the housing; and at least one block body on which a light emitting element is mounted is attached to the housing together with the base. 2. A leaf spring-like switching plate having a hanging piece implanted in the plunger, having a projecting part projecting from the hanging piece and having a tongue piece resiliently sliding with the projecting piece is provided in the housing. 2. The push-button switch according to claim 1, wherein the push-button switch is disposed on the switch. 3. The push-button switch according to claim 2, wherein said switching plate is disposed in said housing so as to be vertically movable.