JPH0228570Y2 - - Google Patents

Description

[Detailed description of the invention] Technical field to which the invention pertains The present invention relates to a small push button switch, and in particular, the invention relates to a small push button switch, in particular, two slide plates are provided inside the push button, and the two slide plates are moved in opposite directions by the up and down movement of the push button. The present invention relates to a switch display device that displays whether a switch is opened or closed by sliding the switch.

Description of the Prior Art There is no conventional push button switch of this type that can mechanically display the open/closed state of the switch.
Therefore, since the open/closed state of the switch is determined based on the upper and lower positions of the button, it is unclear and there is a risk of misidentification. Furthermore, what is displayed is carved or stamped on the top surface of the button, and it is always displayed without changing, and does not clearly indicate the open/closed state of the switch, but only indicates the operation. It was from.

Illuminated switches are available as switches that clearly indicate the open/closed state, but they are expensive due to lighting failure due to lamp breakage, and the need to install an illumination circuit, which increases the number of man-hours for the structure of the illumination part and soldering work. There were some drawbacks, such as:

Purpose of the invention The present invention has been made in view of the above-mentioned conventional circumstances.Therefore, the purpose of the present invention is to eliminate the above-mentioned drawbacks, clarify the open/closed status of the switch, and provide an extremely simple display mechanism that is reliable. The purpose of the present invention is to provide a novel switch display device with high performance.

Structure of the Invention In order to achieve the above object, the switch display mechanism according to the present invention includes first and second operation plates that are movable up and down within the switch housing, and the switch can be changed by operating the operation plates. In the push button switch, a guide is provided at the bottom of the push button, and first and second triangular slide plates slidable left and right are provided between the inner surface of the push button and the guide, respectively.
A second inclined surface is provided facing downward, and a display stand is provided by being placed and fixed on a switch base disposed at the lower part of the housing, and the first inclined surface of the first sliding plate and the display stand are provided. One side of the top surface of the first operation plate is in sliding contact, the second inclined surface of the first slide plate and the first side of the top surface of the display stand are in sliding contact, and the first side of the second slide plate The inclined surface and the second side of the upper surface of the display stand are in sliding contact, and the second inclined surface of the second sliding plate and one side of the upper surface of the second operation plate are arranged in sliding contact, The slide plate slides by pressing the push button, and the top surface of the display stand is displayed between the first and second slides.

Function of the device Equipped with two operation plates that are supported to be slidable up and down inside the switch housing, and a heart cam mechanism formed between the operation plates and the side surface of the switch base. Two movable triangular prism-shaped slide plates are provided, and a display stand is provided by being placed and fixed in the housing, and two sides of the top surface of the display stand and the top surface of each of the operation plates that are vertically slidable are provided. Each side is arranged in sliding contact with the lower right and left inclined surfaces of the two slide plates, so when the push button is pressed, the lower sides of the two slide plates in the shape of a triangular prism are fixed with the inclined surfaces of the two slide plates. The two slide plates slide in opposite directions from each other by the two sides of the top surface of the display table, and the characters on the top surface of the display table are displayed on the top surface of the push button between the two slide plates, and the characters on the bottom surface of the two slide plates are displayed on the top surface of the push button between the two slide plates. The other inclined surface presses the two operating plates, thereby opening and closing the switch means, which are then locked by the heart cam mechanism. Next, when the push button is pressed to release the lock, the two operation plates rise and return due to the coil springs provided at the bottom of the operation plate, and the two slide plates slide to the center, so that the display stand slides. Closed by a board.

DESCRIPTION OF EMBODIMENTS OF THE INVENTION Next, a preferred embodiment of the present invention will be specifically described with reference to the drawings.

In FIGS. 1 to 4 showing an embodiment of the present invention, reference number 1 indicates a housing, and the housing 1 has an open end face and can be operated by a partitioning flat portion 1a provided approximately in the center. It is partitioned into a space in which part A slides up and down and a space in which switch means B is housed. From above the open end surface of the housing, a rectangular window 2a is provided on the upper surface, a rectangular through hole 2b is provided in the center of both opposing sides, and a protrusion 2c is provided on both sides of the push button 2. Two push buttons are formed on the inner surface thereof. The triangular prism-shaped slide plates 3 and 4 are inserted to the left and right, and the operation part A is inserted into which the guide 5 provided on the wall 5b that slides and guides the slide plates 3 and 4 on both sides of the frame 5a is inserted. 1. The slide plates 3 and 4 each have two inclined surfaces 3 facing downward.
It has a, 3b, 4a, and 4b.

On the other hand, at the base end of the housing 1, a switch base 7 is mounted, with a display base 6 having a square upper part and a square lower part in the center, and switch means B provided on both sides of the display base 6. One side 6b of the square upper part of the display stand 6 is on the inclined surface 3b of the slide plate 3.
The other side 6c of the square upper part of the display stand 6 is on the inclined surface 4a.
are slidably connected to each other. Also, slide plate 3
An upper end side 14d of an operation plate 14, which will be described later, is in sliding contact with an inclined surface 3a, and an upper end side 15d of an operation plate 15, which will be described later, is in sliding contact with an inclined surface 4b of the slide plate 4. The slide plates 3 and 4 are the walls 5 of the guide 5.
The push button 2 is slid by being guided by protrusions 3c and 4c formed on the end faces thereof through a slit (not shown) formed by the upper end of the push button 2 and the inner wall of the push button 2. This housing 1 is referred to as a switch base 7, which includes a plurality of recesses (not shown) formed at the base end of the housing 1 and a plurality of engaging protrusions 7a formed at the side surface of the switch base 7. It is fitted by engaging the two.

To explain the switch means B used in this embodiment, an NC fixing piece 8, an NO fixing piece 9 and a support piece 10 having a pair of rising parts are respectively disposed on the switch base 7. has been done. The NC fixing piece 8 and the NO fixing piece 9 serve as an NC contact terminal 8a and an NO contact terminal 9a, respectively, which pass through the bottom wall of the switch base 7, and the support piece 10 extends through the bottom wall of the switch base 7. It also serves as a common terminal 10a that penetrates the wall.
Notches 10b and 10c with steps are formed on both sides of each rising portion of this support piece 10, and the notch 10b located at the upper side in FIG. However, the side ends of the actuating pieces 12, which are pressed and operated by the operating plate 14, are respectively engaged with the notches 10c located below. The tension spring 13 is mounted by locking one end to the movable contact piece 11 and locking the other end to the actuating piece 12, so that the operating plate 14 allows the actuating piece 12 to
Reversibility is provided so that the movable contact piece 11 can be reversed when pressed.

A display stand 6 consisting of a square upper part and a square lower part is provided in the center of the switch base 7, and horizontal recesses 6a and 6b are formed at both ends of the square lower part, so that the operation plates 14 and 15 are guided downward. It functions to transmit the operation of the operation push button 2 to the switch means B. The operation plates 14 and 15 also have a through hole 1c in the plane portion 1a provided at the substantially central portion,
1d, and is mounted so as to be slidable in the vertical direction, and a rectangular through hole 2b at the center of both sides of the push button 2 is inserted into a downward step 14a formed at the outer upper end of the push button 2. inserted.

On the other hand, a vertically elongated rectangular through hole 1b' is provided on the side surface of the housing 1, and these are fitted into a protrusion 2c on the side surface of the push button to prevent it from coming off upward. Note that heart cams 14b, 15b are formed on the side surfaces of the operation plates 14, 15, and the heart cams 14b, 15b have bent portions at one end engaged with horizontal holes 7b formed in the side surface portions of the switch base 7. The free ends of the locked hook pins 16 are slidably engaged. In this way, the movable contact piece 11
is configured to be reversible as described above using the notch 10b provided in the support piece 10 as a fulcrum,
Flips up and down using the snap action principle,
The NC contact and NO contact are designed to open and close.
In this case, the horizontal portion 1 extending from the operation plate 14
When the lower end surface of the movable contact piece 11 comes into contact with the NC contact 8 when the lower end surface of the movable contact piece 11 comes into contact with the actuating piece 12 and a downward pressure starts to be applied, the actuating piece 12 is not sufficiently pushed. When pressure is applied, the movable contact piece 11 flips around the fulcrum to the NO contact 9 side,
The switch changes from NC contact to NO contact. In any case, an upward force is always applied to the operation plate 14 by a coil spring 17 provided on the lower surface. The display stand 6 on the switch base 7 protrudes from a central rectangular through hole 1b of a plane portion 1a provided approximately at the center of the housing 1, and is located at the center of the left and right slide plates 3 and 4.

It is preferable that the filter 18 is fitted into the rectangular window 2a at the center of the push button by a concave-convex relationship. An elastic plate 19 having a hole that fits into a protrusion 1e provided on the outer periphery of the housing 1 and a flange 20 of the housing 1
is the member used to attach the switch to the panel.

Next, to explain the operation, when the operation button 2 is pressed, the sides 6b and 6c of the display stand 6 are moved to the inclined surface 3b,
By pressing 4a, the slide plates 3 and 4 slide left and right, that is, the slide plate 3 is slid to the left in FIGS. 1 and 2, and the slide plate 4 is slid to the right. , the top surface of the display stand 6 is displayed on the window 2a on the top surface of the push button 2, and by sliding the slide plates 3 and 4 left and right, operations can be performed using the other inclined surfaces 3a and 4b of the slide plates 3 and 4, respectively. Since the plates 14 and 15 are pushed down, the horizontal portions 14c and 15c of the operating plates push down the operating piece 12 of the switch means B provided on the switch base 7.
As a result, the movable contact piece 11 is reversed as described above using the notch 10b provided in the support piece 10 as a fulcrum, and is held by a locking mechanism using heart cams 14b and 15b formed on the side surfaces of the operation plates 14 and 15. Next, when you press operation button 2, the locking mechanism by the heart cam is released and the coil spring 1 on the bottom of the operation panel is released.
7, the operation plates 14 and 15 return to their original positions and slide the slide plates 3 and 4 to the center, so that the display window 2a is closed by the slide plates 3 and 4, and the actuating piece 12 returns to the upper position, opening the movable contact. The piece 11 is reversed and returned to its original position using the notch 10b provided in the support piece 10 as a fulcrum. Note that a name plate may be attached to the top surface of the display stand.

Effects of the invention According to the invention, there is an operation plate that can be slid up and down inside the switch housing, and two slide plates that have a heart cam mechanism on the side and are made of triangular prisms that can be slid left and right between the inner side of the push button and the guide. In addition to providing
a display stand placed and fixed in the housing;
Two sides of the top surface of the display table and one side of the top surface of the operation plate which can be slid up and down are arranged in sliding contact with the left and right bottom surfaces of the two slide plates, so when the push button is pressed,
The two slide plates slide in opposite directions due to the inclined surface of the lower surface of the two triangular prism-shaped slide plates and the two sides of the fixed top surface of the display stand, thereby creating a space between the two slide plates. Since the characters on the top surface of the display stand are displayed on the top surface of the push button, not only can the open/closed state of the switch be made clear and misunderstanding of the open/closed state can be reliably prevented, but the display mechanism therefor is extremely simple and can be manufactured at low cost. In addition, because any display can be displayed on the surface of the button, it can be used in the same way as a conventional illuminated switch, and it does not require a lamp, which saves energy.Furthermore, since there is no need for wiring for the illumination circuit, it can be used without soldering. This has the effect of reducing the number of man-hours required for attachment work.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of a push button switch using the display mechanism according to the present invention.
Figure 1 is a cross-sectional view showing the push button not being pressed (OFF), Figure 2 is a cross-sectional view showing the push button being pressed (ON), and Figure 3 is a plan view of the push button being pressed. FIG. 4 is an exploded perspective view. 1... Housing, 2... Push button, 3, 4... Slide plate, 5... Guide, 6... Display stand, 7...
Switch base, 8...NC fixed piece, 9...NO fixed piece, 10... Support piece, 11... Movable contact piece, 12
... Actuation piece, 13 ... Tension spring, 14, 15 ...
Operation plate, 16... Hook pin, 17... Coil spring, 18... Filter, 19... Elastic plate, 20...
...Trim part, 21...Leaf spring.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a push-button switch that includes first and second operation plates that are movable up and down within the switch housing and that switches the switch by operating the operation plates, the lower part of the push-button a guide is provided in the push button, and first and second triangular prism-shaped slide plates slidable left and right are provided between the inner surface of the push button and the guide, with first and second inclined surfaces facing downward, respectively; A display stand is mounted and fixed on a switch base disposed at the lower part of the housing, a first inclined surface of the first slide plate and one side of the upper surface of the first operation plate are in sliding contact, and the a second inclined surface of the first slide plate and a first inclined surface of the top surface of the display table;
The first inclined surface of the second sliding plate and the second side of the top surface of the display stand are in sliding contact, and the second inclined surface of the second sliding plate and the second inclined surface of the second sliding plate are in sliding contact with each other. One side of the upper surface of the operation plate is arranged in sliding contact with each other, and by pressing the push button, the slide plate slides, and the upper surface of the display table is displayed between the first and second slides. Features a switch display device. (2) The switch display device according to claim (1), further characterized in that the first and second operation panels are provided with a heart cam mechanism. (3) Utility model registration claims paragraph (1) or (2) further characterized in that a window is provided on the upper surface of the push button.
The switch display device described in section.