DE1004701B - Cam switches, in particular in the form of a drive or control switch for electric vehicles - Google Patents

Description

LIBRARY
{OF THE GERMAN) V PATENT OFFICE J

NOTICE
THE REGISTRATION
AND ISSUE OF THE
EDITORIAL: MARCH 21, 1957

Drive switches in electric vehicles must, like the control switches, electric hoists and. Crane systems are often dismantled for maintenance reasons. It is annoying that on everyone individual switching element two power connections must be loosened. But also with control switches, for example can only be installed once, the power connections require a space for their installation later, after assembly, is completely unused. ίο

The invention therefore proposes, in driving or control switches for electric vehicles or the like., Provide their own connection pieces attached to the switch frame for the line connections and the conductive ones Connection between these and the switch, or the individual switching elements themselves to establish a screwless connection. In a preferred embodiment, there are screwless connections Print contacts in question. But plug contacts, blade contacts and similar contact ao are also suitable links. By arranging your own connectors, it is possible to make the connections in a travel or control switch before installing the switch itself, whereby the space of the Switch considerably simplifies access to the individual screw connections as. the mounted supply lines can then also when replacing the switch or only individual Switching elements remain connected.

In the drawing, two embodiments of a cam switch according to the invention are in their essential details are shown.

Fig. 1 shows an arrangement in which the cam switch element 1, which is mounted on rail 2, for example, is connected via pressure contacts 3 and 4, is. The mating contacts are guided in the cylinder with the help of a spring, Pistons 5 and 6. The cylinders are mounted in their own connecting piece 7, which is also the connecting screws 8 and 9 for the line connections 10 and 11 carries. The springs 12 ensure a good Contact between the contacts 3 and 5 or 4 and 6. The individual elements 1 can either be used together or individually by simply loosening them the screw that connects the elements to the guide rail 2, can be replaced. aside from that Cam switches, especially in form

a drive or control switch

for electric vehicles

Applicant:

Siemens-Schuckertwerke

Corporation,

Berlin and Erlangen,

Erlangen, Werner-von-Siemens-Str. 50

Dipl.-Ing. Josef Czerny, Nuremberg,
has been named as the inventor

For example, the cam roller 13 can either be removed with the elements or in place remain.

Fig. 2 shows a modification, namely in this example the resilient element for the pressure contacts housed on the switching element 1 itself. The connector 7 also takes the again Screw connection with the line connections and is rigidly mounted on the switch frame.

Claims (3)

PAT EN TA N S P RÜ C H E: 1. Cam switches, in particular in the form of a travel or control switch for electric vehicles, characterized by their own connection pieces (7) attached to the switch frame for the line connections (10, 11) and by screwless connection between these and the switch or the individual switching elements (1) themselves. 2. Cam switch according to claim 1, characterized in that for the connection between connecting pieces (7) and switch pressure contacts (3, 4, 5, 6) are provided. 3. Cam switch according to claim 1 and 2, characterized in that at least preferably only the switching elements (1) without the cam disk can be exchanged, in particular as a unit are.