JP2856708B2 - Right angle tactile switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tactile switch, and more particularly to a right-angle tactile switch mounted by an automatic machine.

[0002]

2. Description of the Related Art FIG. 2 shows an example of a conventional right angle type tactile switch. As shown in FIG. 2, in the structure of the conventional switch, a metal contact 3 and a stem 2 are provided between a housing 4 having a notch 6 and a frame 1. The notch 6 cuts a part of the frame 1 and bends inward. Mechanically, the stem 2 between the housing 4 and the frame 1 is operated in the horizontal direction, the tip of the stem 2 hits a part of the bent notch 6 of the frame 1, and when further moved, the stem 2 slides on the bent surface. The operating direction is changed from a horizontal direction to a vertical direction, and the stem 2 applies a weight to the metal contact 3 on the housing 4. In this manner, a structure is obtained in which a click is obtained.

[0003]

However, in the above-described conventional right-angle type tactile switch, the upper surface of the switch is not flat because a part of the frame is bent inside the switch. Therefore, when mounting by an automatic machine, there is a problem that a mounting error such as a suction error occurs due to unevenness on the surface.

[0004] Also, from the hole by bending the frame,
There is a problem such as poor contact when dust or the like intrudes into the contact portion and energizes.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a right-angle tactile switch capable of improving the reliability of mounting by an automatic machine and securing the reliability of quality.

[0006]

In order to solve the above-mentioned problems, a right angle type tactile switch of the present invention, that is, a concave portion is formed on a stem side of a surface where a stem and a housing come into contact, and a convex portion is formed on a housing side of a contact surface. Achieved by a switch that provides a part, operates the stem in the horizontal direction, meshes the concave part and the convex part, changes the operating direction of the stem from horizontal to vertical, and applies a load to the metal contact it can. Further, the frame on the upper surface of the housing may be flat without any recess. Further, the recess may be formed in a linear groove in the width direction of the stem, and the protrusion may be formed in a linear protrusion in the width direction of the housing,
The concave portion may be formed in a plurality of grooves, and the convex portion may be formed in a plurality of protrusions.

The right angle type tactile switch of the present invention has upper surfaces parallel to each other. For this reason, when mounting by an automatic machine, mounting errors such as suction errors can be prevented. Further, since no hole is formed in the upper surface of the switch, dust and the like do not enter, no poor contact occurs, and the reliability of quality is improved.

[0008]

FIG. 1 shows an embodiment of a right angle type tactile switch of the present invention. FIG. 1A is a top view of an embodiment of the present invention.
FIG. 1B is a sectional view of one embodiment of the present invention (switch O).
FF state), and FIG. 1C is a cross-sectional view (switch ON state) of one embodiment of the present invention.

In FIG. 1A, the frame 1 has no notch 6 as shown in FIG. As shown in the cross-sectional view of FIG. 1B, a stem 2 and a metal contact 3 are provided between the frame 1 and the housing 4 inside the housing. The concave portion 5 is provided on the stem 2 side of the contact surface, and the convex portion 6 is provided on the housing side. Therefore, the concave portion 5 and the convex portion 6 are engaged with each other, and the operating direction of the stem 2 is changed from the horizontal direction to the vertical direction, so that a weight is applied to the metal contact 3. Functionally, the stem 2 is operated in the direction of the switch body, the stem 2 operates in the horizontal direction, slides on the convex portion 6 of the housing 4, and the concave portion 5 of the stem 2
And the convex portion 5 and the concave portion 6 mesh with each other. Up to this point, the switch is in the OFF state. Due to the meshing, the operating direction of the stem 2 is changed from the horizontal direction to the vertical direction with the fulcrum of the projection 5 and the depression 6 as a fulcrum, and a load is applied to the metal contact 3 to form the metal contact 3 and the housing 4. The contacted electrode patterns come into contact, and the switch is turned on (energized). FIG. 1C shows the state at this time. When the operation is released from the switch ON state, the metal contact 3 rebounds, and the repulsive force causes the stem 2 to operate in the direction opposite to the operation direction, returning to the state before the operation, that is, the state of FIG. It has become.

As described above, the right-angle tactile switch of the present invention is characterized in that the frame 1 on the upper surface of the housing 4 is flat. Therefore, no dust or the like enters from the upper portion, no frame failure such as poor contact occurs, and the structure of the concave portion 5 and the convex portion 6 is such that the concave portion 5 is a linear groove in the width direction of the stem 2. The projection 6 may be a linear projection in the width direction of the housing 4, the recess 5 may be a plurality of grooves, and the projection 6 may be a plurality of projections. Further, if possible, a step may be provided in place of the concave portion of the stem 2, and the installation position is such that the concave portion 5 is on the housing 4 side and the convex portion 6 is
It may be provided on the side.

[0011]

According to the structure of the right angle type tactile switch of the present invention, the frame becomes flat.
That is, since the upper surface of the switch is flat, there is no problem that a mounting error such as a suction error occurs when the switch is mounted by an automatic machine.

Further, since no hole is formed in the upper surface of the switch, dust and the like do not enter, and the reliability of quality is improved.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of a right-angle type tactile switch according to the present invention, wherein (a) is a top view thereof, (b) is a sectional view (switch OFF state), and (c) is a sectional view. (Switch ON state).

FIG. 2 is a view showing one embodiment of a conventional right angle type tactile switch, (a) is a top view thereof,
(B) is a sectional view (switch OFF state), and (c) is a sectional view (switch ON state). It is a top view.

[Explanation of symbols]

 1 Frame 2 Stem 3 Metal Contact 4 Housing 5 Concave 6 Notch

Claims (4)

(57) [Claims] 1. A tactile switch in which a stem and a housing come into contact with each other to obtain a click by applying a load to a metal contact in the housing, wherein a concave portion is provided on a stem side of the contact surface, and a housing side of the contact surface is provided on the housing side. Providing a convex portion, operating the stem in the horizontal direction to engage the concave portion with the convex portion, and changing the operating direction of the stem from the horizontal direction to the vertical direction to apply a load to the metal contact. Right angle type tactile switch. 2. The right-angle tactile switch according to claim 1, wherein a frame on an upper surface of the housing is a flat surface. 3. The method according to claim 1, wherein the recess is a linear groove in the width direction of the stem, and the protrusion is a linear projection in the width direction of the housing. Right angle type tactile switch described. 4. The method according to claim 1, wherein the recess is a plurality of grooves, and the protrusion is a plurality of protrusions.
Right angle type tactile switch described in.