JPH05274960A - Structure of switch - Google Patents

Abstract

PURPOSE:To extend the life of a movable spring by preventing deformation of a plunger. CONSTITUTION:An upper lateral piece 4 having an upper pushing portion 3 for pushing the movable spring 2 of an upper switch portion 1 and a lower lateral piece 8 having a lower pushing portion 7 for pushing the movable spring 6 of a lower switch portion 5 are integrally connected to each other by a longitudinal piece 9, to form a U-shaped plunger 10. A push button portion 11 is provided protrusively from approximately the center of the upper surface portion of the upper lateral piece 4. The plunger 10 is freely vertically movably disposed inside a body 12, and the push button portion 11 is projected from a hole 13 provided through the upper surface of the body 12. A stopper projecting portion 14 is provided protrusively from the edge of the hole 13 and a slide channeled portion 15 is formed in the side face portion of the push button portion 11. The stopper projecting portion 14 is fitted into the slide channeled portion 15. The upper surface portion of the slide channeled portion 15 serves as a stopper portion 16 which abuts on the stopper projecting portion 14 when the push button portion 11 is lowered most, so as to prevent warping of the plunger 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch structure in which two upper and lower switch sections can be switched on by operating a single push button section.

[0002]

2. Description of the Related Art Conventionally, an upper switch portion 1 and a lower switch portion 5 are internally provided in a body 12, a plunger 10 is arranged in the body 12 so as to be vertically movable, and the plunger 10 is protruded from an upper surface portion of the plunger 10. The push button part 11 is
It is known that the upper switch portion 1 and the lower switch portion 5 are turned on by projecting upward from the hole 13 in the upper surface portion and pressing the push button portion 11. The body 12 is divided into a body portion 29 and a body cover portion 17, and the upper switch portion 1, the lower switch portion 5, the plunger 10 and the like are incorporated into the body portion 29 from the side opening thereof. The side cover opening of the body main body 29 is covered with the body cover 17 after the assembly. Here, in assembling the upper switch unit 1, the lower switch unit 5, the plunger 10 and the like from the side surface opening of the body body unit 29, after the plunger 10 is first assembled, the upper switch unit 1 and the lower switch unit are assembled. 5, the plunger 10 has the movable spring 2 of the upper switch portion 1 on the lower surface so that the movable spring 2 of the upper switch portion 1 and the movable spring 6 of the lower switch portion 5 can be incorporated. The upper horizontal piece 4 having the upper pressing portion 3 for pressing and the movable spring 6 of the lower switch portion 5 on the lower surface portion.
It is necessary to form a lower horizontal piece 8 having a lower pressing portion 7 that presses into a U-shape integrally connected by a vertical piece 9, and the push button portion 11 is formed by combining the body main body portion 29 and the body cover portion 17. The hole 1 is formed in the substantially central portion of the upper surface portion of the body 12 which constitutes
Since it is necessary to provide 3 and project from this, the push button portion 11 is provided so as to project upward from the central portion of the upper lateral piece 4 of the plunger 10. Further, in the conventional case, when the stopper projection 30 is hung downward from the lower lateral piece 8 of the U-shaped plunger 10 and the push button portion 11 is pushed down to the maximum extent, the stopper projection 30 is a bottom inside the body 12. I am trying to hit.

[0003]

However, in the conventional example having the above structure, as shown in FIG.
Since the shape of 0 is U-shaped and the push button portion 11 is provided in the central portion of the upper lateral piece 4 of the U-shaped plunger 10,
When the push button portion 11 is pushed to hit the bottom of the inside of the body 12 with the sputter projection 30, the upper lateral piece 4 is bent as shown by the arrow in FIG. 10 due to the force from above acting on the push button portion 11. However, there is a problem that the movable spring 2 of the upper switch portion 1 is bent and the life of the movable spring 2 is shortened.

The present invention has been made in view of the above-mentioned problems of the conventional example, and an object thereof is to provide a switch which can prevent the deformation of the plunger and prolong the life of the movable spring. It is in providing structure.

[0005]

According to the structure of the switch of the present invention, an upper lateral piece 4 having an upper pressing portion 3 for pressing the movable spring 2 of the upper switch portion 1 on the lower surface portion and a lower switch portion 5 on the lower surface portion. Lower horizontal piece 8 having a lower pressing portion 7 for pressing the movable spring 6 of
A push button portion 11 is formed from a substantially central portion of the upper surface of the upper horizontal piece 4 of the U-shaped plunger 10 in which and are integrally connected by a vertical piece 9.
And the plunger 10 is arranged in the body 12 so as to be vertically movable, and the push button portion 11 is provided in the body 12.
Of the upper surface of the body 12, a stopper projection 14 is projected from the edge of the hole 13 of the upper surface of the body 12, and a slide groove 15 is formed on the side surface of the push button portion 11. The stopper projection 14 is fitted into the stopper 15 and the upper surface of the slide groove 15 serves as a stopper portion 16 that abuts the stopper projection 14 when the push button portion 11 is fully lowered. By adopting the above, the problems of the above-mentioned conventional example are solved and the object of the present invention is achieved.

[0006]

According to the present invention having the above-described structure, however, the stopper projection 14 is projected from the edge of the hole 13 on the upper surface of the body 12, and the slide groove 15 is formed on the side surface of the push button 11. Is formed, and the stopper projection 14 is fitted into the slide groove 15, and the upper surface of the slide groove 15 serves as the stopper portion 16 that abuts the stopper projection 14 when the push button portion 11 is maximally lowered. When pressed downward, the stopper projection 14 hits the stopper portion 16 provided on the push button portion 11 which is the operating portion in the maximum lowered state, and prevents further pushing down, but in this case, it is the operating portion. Since the stopper is formed at the push button portion 11, the lower U-shaped plunger 10 is prevented from bending, and this prevents the movable spring 2 from bending. Those that became way.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. The body 12 is divided into a body portion 29 as shown in FIG. 5 and a body cover portion 17 as shown in FIG.
The body 12 is configured by combining and as shown in FIGS. 2, 3, and 4. A hole 13 is formed in the upper surface portion of the body 12, and the hole 13 is formed in a mating surface portion between the body main body portion 29 and the body cover portion 17. The body switch 29 includes the upper switch unit 1, the lower switch unit 5, the plunger 10, and the like. As shown in FIG. 8, the plunger 10 is U-shaped, and an upper pressing portion 3 for pressing the movable spring 2 of the upper switch portion 1 is provided on the lower surface of the U-shaped upper lateral piece 4. The lower horizontal piece 8 is provided with a lower pressing portion 7 for pressing the movable spring 6 of the lower switch portion 5, and the upper horizontal piece 4 and the lower horizontal piece 8 are integrally connected by a vertical piece 9. A push button portion 11 is integrally provided so as to project upward from a substantial center of an upper surface portion of the upper lateral piece 4 of the plunger 10. Further, a hanging protrusion 18 is provided below the lower surface of the lower horizontal piece 8 of the U-shaped plunger 10.
An upper portion of a spring 19 is fitted on the depending protrusion 18.

Then, the plunger 10 is assembled inside from the side surface opening of the body portion 29. That is, the plunger 10 is vertically movably incorporated in the body body 29, and the push button portion 11 is vertically movably fitted into the hole 13 in the upper surface of the body body 29. Plunger 1
When 0 is incorporated, the spring 19 is used for the body 2
It is in elastic contact with the bottom of the inside of 9, so that the plunger 10 is elastically biased upward. After the plunger 10 is installed, the body switch 29 further includes the upper switch unit 1 and the lower switch unit 5. In FIG. 1, 20 and 21 are terminals of the upper switch portion 1, 22 is a contact provided on the terminal 20, 23 is a contact provided on the movable spring 2,
Reference numeral 24 denotes a reversing spring provided on the movable spring 2, and 2
Reference numerals 5 and 26 are terminals of the lower switch section 5, 27 is a contact provided on the terminal 25, and 28 is a contact provided on the movable spring 6. When the plunger 10, the upper switch portion 1, and the lower switch portion 5 are assembled in the body body portion 29 as described above, since the plunger 10 is normally pushed upward by the spring 19, the contact 22 of the upper switch portion 1, 23 is separated, and the contacts 27, 28 of the lower switch unit 5 are separated. In this case, the upper horizontal piece 4 is prevented from hitting the lower surface of the edge of the hole 13 and further pushed upward, and the upper pressing portion 3 of the plunger 10 abuts on the movable spring 2 of the upper switch portion 1. The lower pressing portion 7 is in contact with the movable spring 6 of the lower switch portion 5. After assembling the plunger 10, the upper switch portion 1, and the lower switch portion 5 into the inside of the side surface opening of the body portion 29 in this way, the body cover portion 17 is combined with the side opening portion of the body portion 29. ..

In the present invention, in addition to the basic structure of the switch as described above, a stopper projection 14 is further projected from the edge of the hole 13 on the upper surface of the body 12 to provide the push button portion 1
1. A slide groove 15 is formed on the side surface of the slide groove 1, and a stopper projection 14 is fitted into the slide groove 15 so that the upper surface of the slide groove 15 hits the stopper projection 14 when the push button 11 is fully lowered. It has the following configuration. That is, the slide groove portions 15 are formed on both side surfaces of the push button portion 11, and the stopper projections 14 are provided so as to protrude from the opposite side edges of the hole 13, respectively. The stopper projections 14 are provided so as to project from the body main body 29 side and the body cover 17 side that form the edge of the hole 13. The sliding groove portions 15 provided on both sides may be through grooves that communicate with each other.

Therefore, the push button portion 11 is pushed down against the spring force of the spring 19 to push down the contact 2 of the upper switch portion 1.
2 and 23 are turned on, and the contact 27 of the lower switch unit 5 is
28 is input. In this case, when the push button portion 11 is pushed down to the maximum extent, the stopper projection 14 comes into contact with the stopper portion 16 provided on the push button portion 11 which is the operating portion, and further pushing down is prevented. In this case, since the stopper is formed at the push button portion 11 that is the operation portion,
This prevents the situation where the lower U-shaped plunger 10 is bent. When the push-down force of the push button portion 11 is released, the spring force of the spring 19 causes the
It returns to the state where the switch is turned off.

[0011]

As described above, according to the present invention, the stopper projection is provided so as to project from the edge of the hole on the upper surface of the body, and the slide groove is formed on the side surface of the push button portion. Since the stopper projection is fitted in the groove and the upper surface of the slide groove is the stopper that hits the stopper projection when the push button is maximally lowered, when the push button is pressed downward, it is the operating part in the maximally lowered state. The stopper projection provided on the push button section comes into contact with the stopper projection to prevent further pressing down, and the stopper is provided at the push button section, which is the operating section. As a result,
There is an advantage that the bending of the movable spring is prevented and the life of the movable spring is extended. Moreover, by sliding the stopper projection on the slide groove of the push button provided on the upper part of the plunger, the push button (plunger) can be guided.
It is possible to prevent positional deviation of the stalk and improve variations in operating characteristics.In addition, compared to the conventional example in which the stopper projection is not projected in the hole, the entry of dust that has a stopper projection is provided. Can be prevented. Further, by providing the slide groove portion in the push button portion, the thickness of the push button portion can be reduced, and shrinkage shrinkage at the time of shrinkage in the case of molding with synthetic resin can be prevented.

[Brief description of drawings]

1 is a cross-sectional view of the present invention.

FIG. 2 is a front view of the above.

FIG. 3 is a plan view of the above.

FIG. 4 is a side view of the above.

FIG. 5A is a front view of a body body portion used in the same as above, and FIG. 5B is a plan view of a stopper projection portion on the body body portion side.

FIG. 6 (a) is a rear view of a body cover portion used in the same as above, and FIG. 6 (b) is a plan view of a stopper projection portion on the body cover portion side.

FIG. 7 is a cross-sectional view showing a state in which a switch section of the same is omitted.

FIG. 8 is a drawing showing a plunger used in the above,
(A) is a side view, (b) is a front view, (c)
Is a sectional view.

FIG. 9 is a cross-sectional view showing a conventional example.

FIG. 10 is a cross-sectional view showing a state in which a switch portion of the above is omitted.

[Explanation of symbols]

 1 Upper Switch Section 2 Movable Spring 3 Upper Pressing Section 4 Upper Horizontal Piece 5 Lower Side Switch Section 6 Moving Spring 7 Lower Pressing Section 8 Lower Horizontal Section 9 Vertical Section 10 Plunger 11 Push Button Section 12 Body 13 Hole 14 Stopper Projection 15 Groove for slide 16 Stopper

Claims (1)

[Claims] 1. An upper horizontal piece having an upper pressing portion for pressing a movable spring of an upper switch portion on a lower surface portion, and a lower horizontal piece having a lower pressing portion for pressing a movable spring of a lower switch portion on a lower surface portion. The push button part is integrally projecting upward from approximately the center of the upper surface of the upper lateral piece of the U-shaped plunger connected integrally with one piece, and the plunger is arranged in the body so that it can move up and down and the push button part Project upward from the hole on the top surface of the body, project a stopper projection from the edge of the hole on the top surface of the body, form a slide groove on the side surface of the push button, and insert a stopper projection on the slide groove. A switch structure characterized in that the upper surface of the slide groove is fitted as a stopper portion that abuts against the stopper projection when the push button portion is fully lowered.