DE2648923A1 - Tumbler switch system with rocker - has rocker with pin sliding on contact bridge and additional contact provided for third position - Google Patents

Abstract

The switch has a rocker with a spring loaded pin, movable from a first position through a second position to a third position from which it automatically returns back. A contact bridge connects as required at least two plugs to a third plug between the two. It supports the bridge which forms the switching line. An additional contact (16) operated by a finger (13) on the rocker (3) is provided on one side of the contact bridge (7) for the third switching positions.

Description

Toggle switch

The invention relates to a toggle switch according to the preamble of Main claim.

Such toggle switches such as those for example by the DT-OS 24 53 958 known lfurden, are very often used as wiper was cherschalter in motor vehicles used.

The three switch positions that are available are particularly important in the case of a rear wiper system sufficient. In doing so, the first switching position becomes the rest position second switch position, which operates the windshield wiper and then further into a third switch position for the pump motor switched. Just this third switch position, which is designed as a tilted position, often gave cause for complaint. This is because that the switching bridge is designed at the same time as a switching curve, the tilted position is reached via a resilient tongue pressed out of the switching bridge. There this arrangement is not absolutely rigid, over-switching often occurs. Another The disadvantage is that the series arrangement of the switching positions to a relative long switch leads.

The object of the invention is to provide the switching reliability of a switch to increase the previously described design and the switch itself also more compact to design.

This is according to the invention with the characterizing features of the first Claim solved. Due to the parallel arrangement of the additional contact, for Example of a washer contact, the switch is extremely short in the switching direction. The space saved can therefore easily be used for search lighting or control lighting be used. Furthermore, due to the fixed position of the switching bridge in the second switch position (for example switch-on position for the wiper motor) the Switching curve exactly for a perfect automatic sliding back out of the third Switch position (e.g. tilt position for the washer pump motor) will. Switching over from the first switch position (O position) to the -third switching position (tilt position) is determined by the fixed switching bridge (switching curve) relatively safely avoided in the second switch position.

For further structural simplification, the additional contact is on the attached by the second switching position applied plug and to achieve the parallel position to the switching bridge angled accordingly.

Since there are relatively long switching paths for this additional contact, no adjustment work is required for this.

An embodiment of the invention is described below with reference to the Drawings described in more detail.

They show: FIG. 1 a longitudinal section through a toggle switch, Fig. 2 shows a section according to line II-II in FIG. 1 and FIG. 3 shows a section according to FIG Line III-III in FIG. 1.

In a housing 1, a toggle button 3 can be pivoted about a pivot point 2 stored. The toggle button 3 acts on a loaded by a spiral spring 4 Bolt 5 is a switching bridge 7 designed as a switching curve 6. This switching bridge applied in the first switching position (O position), which is shown in FIG is, the plugs 8 and 9. The jumper 7 is in a known manner on the plug 8 and tilts when the toggle button 3 is pivoted in the direction of arrow 10 bottom right, so that the plugs 8 and 11 are connected to each other. It stands the locking pin stub in the recess 12 of the switching cam 6 and a switching finger 13, which is formed on the toggle button 3, in the position shown in phantom 14. When the toggle button 3 is pivoted further in the direction 10, the locking bolt slides 5 the slope 15 of the peeling curve 6 high. The switching bridge changes its position no longer because it rests firmly on the plug 11. The shift finger hits against it 13 against an additional contact 16 and presses it onto the plug 17. The shift finger then occupies the position 18 shown in dashed lines. Around .

to ensure that when the toggle button 3 is released in the tilt position, that this in the switched-on position, that is, in the second switching position, automatically must be tan (90 ° - «).

L e r s e i t e

Claims (2)

Claims 1; toggle switch with one by means of one in a housing part guided, spring-loaded locking bolt from a first to a second switching position toggle switch that can be adjusted into an automatically resetting third switch position, with a switching bridge for the alternating connection of at least two plugs, which can be tilted on a plug located in the middle between the two plugs is stored, which forms the switching curve, characterized in that for the third Switching position to the side of the switching bridge (7) one of a switching finger (13) is arranged on the toggle button (3) acted upon additional contact (16). 2. Toggle switch according to claim, characterized in that the additional contact (16) attached to the plug (11) acted upon by the second switching position is.