CN103366988B - Electric installation switch with mechanical lock stop member - Google Patents

Abstract

The invention relates to an electrical installation switch with a mechanical lock, with at least two switch inserts arranged side by side in parallel in a support frame, each having a respective switch housing and a switch rocker, wherein a A mechanical locking element that prevents simultaneous switching-on of the switching rockers of adjacent switching inserts. A gap is formed between the switch housings, so that separate stop edges of the switch housings result. Between the two switch inserts there is a switch lock, which has a rotatably movable lock plate with three main sides. The rotation of the locking plate occurs when a switching rocker is switched on and thus the associated cam is pressed against the first bearing surface, during which the second bearing surface slides along the stop edge of the first switch housing And the third support surface slides along the stop edge of the second switch cover. The rotation of the locking plate simultaneously brings about an opening actuation of the other switching rocker via the first bearing surface and the associated cam.

Description

Electrical installation switch with mechanical lock

technical field

The invention relates to an electrical installation switch (Installtionsschalter) with at least two switch inserts (Schaltereinsatz) arranged side by side in parallel in a support frame, each with a respective switch housing and a switch rocker (Schalterwippe), wherein , a mechanical locking element (Verriegelung) is provided which prevents the switching rockers of adjacent switching inserts from being switched on simultaneously. A preferred application is given in the case of a shutter switch.

Background technique

Such a mounting switch is known from DE 197 15 029 A1. Here, a shutter switch is described in the form of an electrically installed series switch, which as a standard has two switch rockers, which are held in a support plate and which can be plugged together with a structural unit for forming a mechanical lock to Simultaneous switching of the switching rockers for different directions of rotation of the blind motor is prevented.

Contents of the invention

The object of the invention is to specify an optimized electrical installation switch with a mechanical locking element.

According to the invention, this object is combined with the feature that the electrical installation switch has at least two switch inserts arranged side by side in parallel in the support frame, each with its own switch housing and switch rocker, in which a mechanical lock is provided stop, the locking piece prevents the switch rockers of adjacent switch inserts from being switched on at the same time) to solve this problem,

• A gap with a predetermined width is formed between adjacent switching housings, so that separate stop edges of the switching housings result,

• Between the two switching inserts there is a switch locking part which has a substantially triangular-shaped rotatably movable locking plate with three main sides,

• the first main side forms the first bearing surface for the projection of the switch rocker,

• the second main side forms a second bearing surface for the stop edge of the first switch housing,

• the third main side forms a third bearing surface for the stop edge of the second switch housing,

• The rotation of the locking plate occurs when a switching rocker is switched on and thus the associated projection is pressed against the first bearing surface, during which the second bearing surface follows the stop edge of the first switch housing sliding and the third bearing surface slides along the stop edge of the second switch housing,

• Rotation of the locking plate simultaneously brings about an opening operation of the other switching rocker via the first bearing surface and the associated cam.

The advantages achievable with the invention are, inter alia, that the switch lock can be optionally fixed in the installation switch, ie the same installation switch can be operated both with the switch lock and without the switch lock. It is possible for the switch locking element to be assembled/disassembled directly at the site of use in order to thus provide the installation switch with/without locking element required in the particular application. When the switch lock is assembled, only one of two adjacent switch inserts can always be in the switched-on state. If one switching insert is in the switched-on state, the rotated locking plate blocks the switching rocker of the other switching insert, thereby preventing two adjacent switching inserts from being switched on at the same time. This prevents, for example, simultaneous switching of the switching rockers for different directions of rotation of the blind motor.

Expediently, the switching lock has a base plate, on which the locking plate is fastened elastically (federnd), flexible (nachgiebig) and rotatably movable via a bracket. Advantageously, no separate spring is required. Due to the relatively long extension of the support rod, only small bending stresses occur on the material during the rotation, thus ensuring a very long service life.

Furthermore, it is provided that the locking plate engages with the stop pin in the gap between adjacent switch housings. A defined end position of the rotation of the loaded switching rocker and locking plate is determined by the impact of the stop pin against the wall of the switch housing after rotation.

In order that the switch lock can be mounted in the support frame in a very simple manner, it is proposed that the switch lock is fastened via locking elements in associated locking eyelets of the support frame.

Description of drawings

The invention is explained below on the basis of an exemplary embodiment shown in the drawing. In it:

Figure 1 shows a section through the electrical installation switch (detail view),

Figure 2 shows the switch lock,

Figure 3 shows an exploded view of the important structural members for mounting the switch,

Figure 4 shows a perspective view of a mounted switch equipped with two switch inserts,

Figures 5 and 6 show a perspective view of the support frame with the fitted switch lock from the front and from the rear,

Figure 7 shows a section through the mounted switch in perspective view,

Figure 8 shows a side view of the mounted switch in section,

Figure 9 shows a perspective view of a mounted switch equipped with a switch insert.

List of reference numerals

1 Electrical installation switch

2 -

3 support frame

4 stop plate

5 retaining grommets

6 -

7 First switch insert

8 switch rocker

9 bumps

10 switch housing

11 Stop edge for bearing surface 28

12 Stop element

13 -

14 Second switch insert

15 switch rocker

16 bumps

17 Switch housing

18 Stop edge for bearing surface 29

19 Stop element

20 -

21 Switch lock

22 Substrate

23 First stop element

24 Second stop element

25 support rod

26 Locking plate

27 First bearing surface

28 Second bearing surface

29 Third bearing surface

30 Stop pin.

detailed description

A section (detail) through an electrical installation switch 1 is shown in FIG. 1 . Here it can be recognized that:

• a first switch insert 7 with a switch rocker 8 comprising a projection 9,

• a second switch insert 14 with a switch rocker 15 comprising a projection 16, and

• The switch lock 21 with a substantially triangular lock plate 26 with: a first bearing surface 27 facing the cams 9, 16, a switch with the first switch insert 7 A second bearing surface 28 in contact with the stop edge 11 of the housing 10 and a third bearing surface 29 in contact with the stop edge 18 of the switch housing 17 of the second switch insert 14 , wherein between the two A stop pin 30 is arranged at the junction of the stop surfaces 28 , 29 .

The locking plate 26 has a plate section A associated with the first switching insert 7 and a plate section B associated with the second switching insert 14 . FIG. 1 shows the switching position of the second switching insert 14 after the switching-on operation has taken place, wherein the switching rocker 15 is pressed with its cam 16 against the bearing surface 27 , and wherein at the same time the bearing surface 27 presses the first switch via the cam 9 . The switching rocker 8 of a switching insert 7 is locked in the off position. As soon as the switching rocker 8 of the first switching insert 7 is switched on, the locking plate 26 is rotated in such a way that

• The projection 9 of the switch rocker 8 is pressed against the support surface 27,

• Simultaneously the bearing surface 27 pushes the switching rocker 15 of the second switching insert 14 via the cam 16 into the off position,

• Simultaneously, the bearing surfaces 28 and 29 slide along the stop edges 11 and 18 respectively.

The switch lock is shown in FIG. 2 . The switch lock 21 has a base plate 22 with two locking elements 23 , 34 for mounting the switch lock in a support frame on which the switch 1 is mounted. The bracket 25 fastened to the base plate 22 has a locking plate 26 at its end. The first bearing surface 27 , the second bearing surface 28 , the third bearing surface 29 and the stop pin 30 of the blocking plate 26 can be seen.

An exploded view of the important structural components of the mounting switch 1 is shown in FIG. 3 , namely

• the first switch insert 7 with the switch housing 10 comprising the locking element 12,

• a second switch insert 14 with a switch housing 17 comprising a stop element 19,

• switch lock 21 with locking plate 26, and

• Support frame 3 for mounting the first switch insert 7 , the second switch insert 14 and the switch lock 21 with the use of locking elements.

A perspective view of a mounting switch 1 equipped with two switch inserts is shown in FIG. 4 . The following components are installed in the support frame 3 here:

• a first switch insert 7 comprising a switch rocker 8,

• a second switch insert 14 comprising a switch rocker 15, and

• Switch lock 21 including lock plate 26 .

Here, the stop edge 11 of the first switching insert 7 and the stop edge 18 of the second switching insert 14 are shown. The two stop edges 11 , 18 are relevant for the operating principle of the mechanical locking element and allow the locking plate 26 to be rotated in a predetermined and desired manner.

5 and 6 show a perspective view of the support frame with the assembled switch lock from the front side (see FIG. 6 ) and from the rear side (see FIG. 5 ). As can be seen, the support frame 3 is provided with a plurality of locking plates 4 and locking grommets 5 which are used for mounting the switching insert and also for mounting the switching lock 21 . It is shown that the locking elements 23 , 24 engage in the locking grommet 5 .

7 shows a perspective view of a section through the assembly switch 1 , wherein it can be seen that the switch lock 21 engages via its locking elements 23 , 24 on the support frame 3 including the locking plate 4 and the assembled Switch insert 7.

FIG. 8 shows a side view of the mounting switch 1 in a sectional view, in which it can be seen that the switch lock 21 engages with its locking elements 23 , 24 on the support frame 3 and the assembled switch rocker 8 for switch insert 7.

FIG. 9 shows a perspective view of the mounting switch 1 equipped with the switching insert 7, in which the locking plate 4 and the locking grommet 5 of the support frame 3 can be seen as well as the fitted switching lock 21. .

Claims (4)

1. An electrical installation switch (1) with at least two switches arranged side by side in parallel in a support frame (3) with respective switch housings (10,17) and switch rockers (8,15) Switching inserts (7,14), wherein a mechanical lock is provided which prevents simultaneous switching-on operations on the switching rockers (8,15) of adjacent switching inserts (7,14), which characterized in that, • A gap with a predetermined width is formed between adjacent switching housings (10, 17), so that separate stop edges (11, 18) of the switching housings (10, 17) result, • Between the two switch inserts (7, 14) there is a switch lock (21), which has a substantially triangular, rotatably movable lock plate with three main sides (26), • the first main side forms the first bearing surface (27) for the lugs (9,16) of the switch rocker (8,15), • the second main side forms the second bearing surface (28) for the stop edge (11) of the first switch housing (10), • The third main side forms a third bearing surface (29) for the stop edge (18) of the second switch housing (17), • The rotation of the locking plate (26) occurs when a switch rocker (8,15) performs a switching operation and thus the associated lug (9,16) is pressed against the first bearing surface (27) , when rotating, the second bearing surface (28) slides along the stop edge (11) of the first switch housing (10) and the third bearing surface (29) slides along the second The stop edge (18) of the switch cover (17) slides, • The rotation of the locking plate (26) simultaneously causes the opening operation of the other switch rocker (8, 15) via the first bearing surface (27) and the associated lug (9, 16) . 2. Mounting switch according to claim 1, characterized in that the switch locking element (21) has a base plate (22), the locking plate (26) is elastically flexible and It is rotatably fixed at the base plate (22). 3. Mounting switch according to claim 1, characterized in that the locking plate (26) engages with a stop pin (30) to the side-by-side arrangement of the first switch housing (10) and the In the gap between the second switch housing (17). 4. Mounting switch according to claim 1, characterized in that the switch lock (21) is fixed via a stop element (23, 24) to an associated stop cable of the support frame (3) in the eye (5).