FR2851690A1 - Push button switch for electric supply line, has movable connecting plate disposed between each of two pairs of electric contacts and moved in one direction under action of spring and in another direction under action of push button - Google Patents

Abstract

The switch has a body (1) which is closed at one end by an insulated base plate (2) and at another end by a push button (3). The base plate comprises of two pairs of electric contacts (4). A movable connecting plate (6) is disposed between each pair of electric contacts and is moved in one direction under the action of a spring (7) and in another direction under the action of the button.

Description

The present invention relates to improvements to

  contactor breaker pushbuttons.

  Such a push button allows, when pressed, to modify the electrical state of a line either permanently or temporarily, the modification ceasing as soon as the action on the control member is released. .

  Generally, the functions described above are obtained by the association of two members, namely one: connector, stable or unstable, and a pusher constituting the control member of the assembly.

  Such an assembly occupies a large volume and does not lend itself to the installation of a light device making it possible to identify, for example, the location of the pusher, in other words, it is very difficult to produce a pusher luminous. In addition, the design of existing devices has shown that in the event of failure of the lighting system, the assembly must be replaced.

  The push button of the invention, which overcomes these drawbacks, is remarkable in that it has a cylindrical body, one end of which is closed by an insulating base, comprising two pairs of electrical contacts, for guiding an organ of connection maintained in a stable position under the action of a spring and capable of being displaced by the depression of a pusher closing the other end of said body. The displacement of the connection member has the effect of opening a first circuit and closing a second.

  The present invention will be better understood from the description which follows made with reference to the accompanying drawings by way of indicative example only, in which: FIG. 1 is a sectional view of a push button in accordance with invention - Figure 2 is a sectional view taken along the line II-II of Figure 1, - Figure 3 is a sectional view taken along the line 111-111 of Figure 1, the pusher being pressed; FIG. 4 is a view, similar to FIG. 3, limited to the representation of the base and showing the possibility of using an independent lighting system.

  Referring to the drawings, it can be seen that the device consists of a body 1, preferably cylindrical, closed at one of its ends by a base 2 and at the other by a pusher 3.

  The base 2, made of an insulating material, comprises two pairs of electrical contacts 4 and 5, angularly and axially offset with respect to the body 1.

  The base 2 is used to guide a connecting plate 6 maintained in a stable position under the action of a spring 7 and which can be moved when the pusher 3 is pressed.

  In practice, contacts 4 and 5 are materialized. by the screw heads, screwed into the base 2 and to which contacts the electrical conductors (not shown) are connected.

  In the rest position, the plate 6 is applied under the heads of the screws under the action of the spring 7, said heads constituting members limiting the movement of said plate or connection member.

  It should be noted that the pusher 3 is held by a spring 8, the force of which is less than that of the spring 7. This spring has a double function, it makes it possible to absorb the variations in dimension which may occur during machining. components and to maintain the internal end of the pusher at a certain distance from the upper face of the plate 6. In this way, the user perceives better his action on the pusher.

  The base 2 has two candles 9 for guiding the plate 6, the axes of which extend parallel to that of the pusher. Preferably the bodies of the screws, the heads of which form the contacts 4, pass axially through the jack stands 9.

  As can be seen in FIG. 4, the base 2 serves to support the socket 10, of a light source 11, screwed axially in said base (the power cables are not shown). The sleeve 10 freely crosses the plate 6 to extend into the internal cavity 3a of the pusher which is advantageously made of a transparent or translucent material. Of course, means other than screwing can be used to maintain the socket 10.

  It should be noted that the means used to fix the douHle (10) are accessible from the outside of the body and that the removal, or placement, of a light source does not influence the operation of the push button.

Claims (3)

  1-Contactor breaker push-button, characterized in that it has a body (1) closed, at one of its ends, by an insulating base (2) 5 and, at the other, by a push-button (3 ), said base comprising two pairs (4 and 5) of electrical contacts between each of which is disposed a contact member (6) movable in one direction under the action of a spring (7) and, in the other, under the action of said pusher.   2-push button according to claim 1, characterized in that the push button (3) is subjected to the action of a spring (8) bearing against the contact member and now, in the absence of pressure on said pusher, the latter remote from said member, the force of said spring being less than that of the first spring (7). 15 3-push button according to one of claims 1 or 2, characterized in that the base serves as a support for a socket (10), for receiving a light source, passing through the connection member (6) to extend into an internal cavity of the pusher which is made of a transparent or translucent material.   4-push button according to claim 3, characterized in that the sleeve (10) is arranged along the axis of the body (1) and is fixed to the base (2) according to means allowing its disassembly.