JPH0635308Y2 - Push button switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an improvement of a push button switch used for calling an elevator, for example, which opens and closes the switch with a push button.

[Prior Art] A push-button switch of this type that has been used in the past has a guide type in which the push button is moved by being guided by a frame body (for example, the actual opening 55
-161320,58-176849,59-78362) and a lever type that utilizes the displacement of a cantilever lever.

FIG. 2 is a structural explanatory view of the guide type push button switch described above, and FIG. 3 is a structural explanatory view of the lever type push button switch.

In FIG. 2, (1) is a plate, (2) is a button hole,
(3) is a switch mechanism. (4) is a frame body of the switch mechanism (3), (5) is a button body, and (6) is a switch. The frame body (4) has a collar portion (41) and a body portion (42) and is made of an insulating material such as plastic, and is made into a so-called set structure using a mold including the button body (5) and the switch (6). ing. (61) is a return spring for the switch (6), and (62) is a contact. Further, (7) is a case, and (8) is a lamp. The lamp (8) is adapted to illuminate when the contact (62) is closed.

The conventional guide type switch is configured as described above, and when the surface (51) of the button body (5) is pushed in the direction of the arrow with a finger, the button body (5) is guided horizontally by the frame body (4). It moves and the contact (62) closes. When the contact (62) closes, the lamp (8) lights up. Next, when the finger is released from the button body (5), the return spring (61) works and the button body (5) returns to the original position.

Further, FIG. 3 is an explanatory view of the structure of a conventional lever type push button switch. The difference from FIG. 2 is that it is supported by a hinge (9) in the case (7) and faces the moving direction of the button body (5). Lever (10). And a hinge (9)
One is fixed to the case (7), and the other end is attached to one end of the lever (10). Also, switch mechanism (3)
The button body (5) and the switch (6) are separated, and the button body (5) is attached to the lever (10). The surface of the button body (5) is exposed in the button hole (2), and the switch (6)
Contactor (61) of is contacting the free end of the lever (10). Reference numeral (11) is a hole for passing the light emitted from the lamp (8) and illuminating the button body (5).

In the conventional lever type push button switch configured as described above, when the button body (5) is pushed in the arrow direction, the lever (10)
Rotates about the hinge shaft (91). Then, the free end of the lever (10) pushes the contact (61) of the switch (6), the contact is closed, and the lamp (8) is turned on. Next, when the finger is released from the button body (5), the switch (6) returns to its original position by the built-in return spring, as in the case of FIG.

[Problems to be Solved by the Invention] A conventional guide-type switch having a structure as shown in FIG. 2 is formed in a set structure using a mold. For this reason, it is difficult to partially change the design, and the entire structure may have to be modified. In particular, switches for elevators, which tend to be large and specially manufactured in small quantities, are unsuitable and costly for the number of switches. Further, since the pressing force of the button body (5) is directly applied to the switch mechanism (3), the contact (62)
It has a fatal drawback that it is deformed and worn. In the case of a lever type push button switch, the rotational angle displacement of a lever supported in a cantilever shape by a hinge is used. Therefore, the pushing force depends on the position of the button, and there is a concern that the switch may not turn on when a portion near the hinge is pushed with a weak force. Further, since the push button is displaced while being tilted, there is a risk that it will be caught in the button hole. If the button hole is made large in order to prevent the button from being caught, there is a problem in that dust gets into the case through the gap, causing contact failure of the contacts and causing a failure.

The present invention has been made to solve the problems of the above-mentioned two types of push button switches of the guide type and the lever type. The button body is displaced substantially linearly, and its size and shape are It is intended to provide a lever-type push-button switch having advantages such that any can be arbitrarily selected.

[Means for Solving the Problem] The present invention relates to a button body that receives a spring pressure in a direction to expose the surface from a button hole of a plate, and a button body mounted near the center to move when the button body is pushed. A first lever rotatably supported via a first hinge and arranged to face each other in a direction, and a first lever connected to the first lever in a folded shape and connected to a free end side via the first hinge. A second lever whose fixed end is rotatably supported by the case by a two-hinge and which is provided with a light-transmitting portion, and a first lever in which a contactor is brought into contact with the free end of the first lever.
A switch, a second switch connected in parallel to the first switch and having a contact facing the free end side of the second lever, and a second button body connected to the second switch and the first switch.
A push-button switch that includes a lamp that illuminates from the rear side through the light-transmitting portion of the lever, and that opens and closes the contacts of the first and second switches by displacing the free ends of the first and second levers by operating the button body. Is configured.

[Operation] In this invention, when the button body is pushed by the finger, the first lever connected to the second lever moves substantially in parallel, and the first lever and the second lever are arranged in contact with the free ends of the first lever and the second lever. Turn on the two switches. Then, when the finger is released from the button body, the first lever moves in parallel in the opposite direction, the switch performs a predetermined operation, and then is turned off to return to the original state.

[Embodiment of the Invention] FIG. 1 is a diagram showing the construction of an embodiment of the present invention.

In FIG. 1, the same symbols as those in FIG. 3 described above represent elements having almost the same structure and function. (12) is the second hinge,
(13) is a second lever, (14) is a second switch having a built-in return spring as shown in FIG. 3, and (15) is a second mounting piece (for convenience of explanation, an element corresponding to FIG. First, the element added to FIG. 1 is second). The second lever 13 is folded over the first lever 10, and one of the first hinges (9) is fixed to the free end of the second lever (13). The free end of the second lever (13) is in contact with the contact (17) of the second switch (14) mounted on the second mounting piece (15), and the other end is on the first mounting piece (16). It is supported by the attached second hinge (12). (18) is the second lever (13)
The hole that allows light to pass through, (19) is the first switch (6)
This is a hole for exposing the contact (61). (20) is a terminal plate for connection provided in the case (7). The first switch (6) and the second switch (14) are connected in parallel, and when at least one of them is closed, a call signal is issued and the lamp (8) is turned on.

In the push button switch configured as described above, when the surface (51) of the button body (5) is pushed in the direction of the arrow, the first lever (10) uses the shaft (91) of the first hinge (9) as a fulcrum. Try to rotate. When the free end of the first lever (10) pushes the contactor (61), it receives the repulsive force of the built-in return spring. However, the first hinge (9) is attached to the second lever (1
It is attached to the free end of 3) and is supported so that it can be displaced. Therefore, the vicinity of the first hinge (9) also moves together, and the second lever (13) rotates about the second hinge (12) as a fulcrum. As a result, the button body (5) is linearly displaced while pressing the upper and lower ends of the first lever (10) in the same manner, and both the first switch (6) and the second switch (14) are turned on almost simultaneously. Will be done. Then, for example, an elevator call signal is transmitted, the lamp (8) is turned on, and the button body (5) is illuminated from the inside.
Illumination of the button body (5) causes the "calling" of the elevator to be displayed on the plate (1). Next, when the finger is released from the push button, the first lever (10) is integrated with the button body (5) by the return spring built into the switch, and the first lever (10) is moved in parallel in the direction opposite to the push direction and the original is moved. Return to position.
At this time, the lamp (8) continues to light even when the button body (5) is restored, and notifies the operation of "calling". Subsequently, for example, when the elevator is called, the lamp (8) is turned off for the first time.

As described above, since the push button switch of the above-mentioned embodiment is constructed in the lever type having the multiple structure, there is almost no possibility that the button body (5) is tilted or the force is changed depending on the position. Further, since the button body (5) is independent of the switches (6) and (14), its size and shape can be arbitrarily selected.

In the above embodiment, the case where the restoring springs (6) and (14) of the button body (5) use the built-in return springs has been described, but a separately provided spring may be used. In this case, a U-shaped spring material may be adopted for the first and second hinges (9) and (12) to serve as both the hinge and the return spring. Further, the case where the hole (19) for exposing the contact (61) of the first switch (6) is provided in the second lever (13) has been described, but the second lever (13) may be provided with a cutout portion. Of course, it is also possible to form an overhanging portion on the first lever (10) and bring this overhanging portion into contact with the contactor (61). Also, the first lever (10) opens and closes the first switch (6), and the second lever (1
The second switch (14) was opened and closed in 3), but the reverse is also possible.
Furthermore, the case where there are two sets of levers and switches is shown as an example.
There may be more than one set, in short, if the lever has a multiple structure.

[Effects of the Invention] As described above, the present invention configures a lever-type push-button switch in which a lever having a multiple structure in which two or more levers are sequentially folded back and connected is arranged. As a result, the button body opens and closes while being displaced substantially linearly, so that the pressing force becomes uneven, the button body is caught or the contact is not properly contacted, as in the conventional lever type. Does not occur. In particular, the displacement of the free ends of the first lever and the second lever, which are stacked in a folded shape, causes the first and second levers to move.
Since the two switches are opened and closed, the pressing force of the button body is relieved, the deformation and wear of the contacts are reduced, and it is possible to endure long-term use. In addition, since the button body and the switch are separated lever type, there is an advantage that the structure of the button body can be selected regardless of the switch.

Therefore, according to the push button switch of the present invention, not only the shape and size of the push button can be arbitrarily selected, but also the operation is smooth, the manufacturing cost is low, and the lever type push button switch does not cause a failure. be able to.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of an embodiment of the present invention, FIGS. 2 and 3 are structural explanatory views of a conventional push button switch, FIG. 2 is a guide type explanatory view, and FIG. 3 is a lever type. FIG. In FIG. 1, (5) is a button body, (6) is a first switch, (8) is a lamp, (9) is a first hinge, (10) is a first lever, (12) is a second hinge, (13) is the second lever,
(14) is a second switch. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (2)

[Scope of utility model registration request] 1. A button body which receives a spring pressure in the direction of exposing the surface from a button hole of a plate, and the button body is attached near the central portion and is arranged so as to face the moving direction when the button body is pushed. A first lever whose one end side is rotatably supported via a first hinge, a folded end overlapped with the first lever, a free end side is connected via the first hinge, and a fixed end is provided by a second hinge. A second lever whose side is rotatably supported by the case and which is provided with a light-transmitting portion; a first switch in which a contact is brought into contact with the free end side of the first lever; and a second switch connected in parallel to the first switch. A second switch having a contact facing the free end side of the second lever, and the button body connected to the second switch and the first switch to illuminate the button body from the rear side through the light transmitting portion of the second lever. And a lamp for operating the first and second buttons by operating the button body. Push button switch, characterized in that by displacing the free end of the bar to open and close the contacts of the first and second switches. 2. A utility model registration claim according to claim 1, wherein a plurality of levers are successively connected to a first lever to which the button body is attached via a hinge to form a multiple structure. Push button switch.