DE388808C - Lever switch that is closed and opened by opposite movements of a door - Google Patents

Description

(T27117

The invention relates to a lever switch, which by opposite movement. a door is closed and opened. The switch is in a known manner with a provided movable contact piece, which is arranged to swing and .beim closing the door is lifted by the fixed contact springs, while it is automatically opened when it is opened step between them. ίο In a new way is the movable contact piece arranged displaceably on a lever and liftable by means of a hook bolt which a mounted in a pivot lever is articulated, at the lower end of the Depression of the door handle pushes a cam attached to the latter, whereby the bolt pushed back by hand automatically advances into working position. The movable one Contact piece; can be made due to its Verschiebao availability so that it is the circuit either closes continuously or interrupts continuously.

In the drawing, the subject matter of the invention is, for example, in one embodiment as shown, namely .shows:

Fig. Ι the top view of the switch, Fig. 2 and 3 a longitudinal section through the same in the direction AB of Fig. 1 in the off and on position,
Fig. 4 shows a cross section in the direction CD of Fig. 1.

The base plate, which is provided with an external thread and is known per se, carries two fixed contact springs c provided with terminals 6, the upper ends of which are bent over. A U-shaped lever e is articulated to the capsule d screwed onto the base plate α and is permanently raised by means of the spring / (Fig. 3). The same is provided with a slide g forming the movable contact, the U-shaped tongue h of which is clamped between the contact springs c when the lever e is raised.

A hook bolt i attached to the door pulls the lever e down when the door is closed and thus removes the tongue h from the contact springs c, so that the circuit is interrupted. The light can also be switched on when the door is closed by pushing back the bolt i.

So that the hook bolt i goes into the working position by itself when the door is closed to automatically switch off the light, it is connected to a lever mounted in the pivot k , against the lower end of which a cam m hits when the door handle is depressed. If the bolt i was pushed back while staying in a room and the light was switched on, it moves forward again when you leave the room as a result of the lever I actuated by the handle and thus unfailingly pulls the lever e down or switches the light off . It is therefore impossible to overlook switching off.

During the day, the slide, which is guided in the longitudinal slot 0 of the lever e by means of the button η , is pushed back so that the open-

or closing the door has no effect on the switch.

Claims (2)

Patent Claims: i. Electric lever switch, which is closed and opened by opposite movements of a door and for this purpose has a swingable contact piece, characterized in that the swingable contact piece (ti) is at the same time slidably arranged and can be lifted off the fixed contact springs by means of a hook bolt (t). to which a lever (Z) mounted in a pivot point (fe) is articulated, at the lower end of which a cam (m) attached to the latter hits when the door handle is depressed, whereby the manually pushed back bolt (t) automatically advances into the working position. 2. Electrical lever switch according to claim i, characterized in that the movable contact piece can be placed as a result of its displaceability, that it either permanently closes or interrupts the circuit. Fig.