DE2362112A1 - End switch of sun blind motor - has cog wheel on drive shaft forming operating lever by interaction with toothed rim - Google Patents

Abstract

End switch of a motor in the drive for a sun blind which saves space and allows fine adjustment after the installation embraces a modulator circuit located in the drive housing. A cog wheel which sits on an eccentric of the drive shaft with a switch pin acts as an operating lever for the drive by the wheel interacting with a toothed rim located centrally to the drive shaft. The toothed rim is held so that it is unable to turn in the drive housing. The angle of the cog wheel can be adjusted if the front cover of the drive is first removed.

Description

Dipl.-Met Goldbsch

Paientan-äite December 12, 1973

605 OFFENBAC:? ON MAY ■

HerrnsL'§8e 37 TsieiQn, 83 83 84, ^{¥ G / F.}

iiähs ¥ iegelmann. ".. '
Helmut Germann
6349 Sinn / Dillkreis Friedrich-Ebert-Strasse 2-4 ■ -.-.

Arrangement of an end stop of a motor in roller shutters or blind drives

The invention relates to the arrangement of a limit switch of a motor in roller shutter or blind drives.

Object of the invention is to provide a space-saving as possible \ arrangement, "which also precise adjustment after installation possible.

To solve this problem, the invention provides that the limit switch comprises a pushbutton switch, which is arranged in the gear housing of the drive 1st, and as an actuation. element includes a gear seated on an eccentric of the transmission shaft with a shift pin, which with a

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centric to the gear shaft arranged, toothed ring gear combs, which is non-rotatable in the drive housing is held.

An embodiment of the invention is shown in the drawings shown'und im Tatgenläen ^ nlhSir ^ ei'-läutertv "and although shows:

1 shows a longitudinal section of a Venetian blind drive,

Fig. 2 is an end view in the direction of the arrow

II in Fig. 1 and _; . . ,

3 shows a plan view of a mounting plate for a blind drive.

A mounting plate 1 has openings 2 for pull cables or guide ropes for the slats 4 one Blind provided. On the plate 1 is near dea one End of a drive 5! Containing a motor, and a reduction gearbox, arranged. Furthermore, a capacitor 6 is attached to the plate 1 »

Near the front of the drive 5 is a sprung on the underside. Arranged buffer 7, which acts on a switch 8. The switch 8 forms the limit switch for

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the upper end position of the blind. It causes shutdown of the drive motor as soon as the top plate 9 of the blind * te when booting ci.h. is taken along with the lamellae 4 lying next to one another and pressed against the spring buffer 7.

Such orders are on? already known.

According to the invention, the housing 10 of the drive 5 is on the Front side pulled forward and closed by means of an end cap 11, which is held detachably in the housing 10 and which at the same time forms a guide for the output shaft 12 of the transmission of the drive 5.

In the mentioned area of the housing 10 is a tooth r wreath 13 with internal teeth arranged in a torsion-proof manner. Ituf an eccentric collar 14 of the output shaft 12 is rotatably arranged a gear 5 with external teeth, which only for a small part “of its scope with the gear rim 13 combs. The number of teeth of gear 15 is only around little less than the number of teeth of the gear 13 · This Arrangement forms a reduction gear Output shaft 12, the gear 15 executes a rotary movement, which is many times smaller than that of the output shaft 12.

The gear wheel 13 carries ^ Ieiaeii: switching sift 16. In the varestand-

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the housing portion 10; also a push button switch 17 is arranged , in such a way that the switching pin 16 with a rotary movement in the direction of arrow 13 against the rocker of the Push button switch 17 is performed and the switch 17 is actuated * This switches off the drive motor.

To set the upper switch-off point, which takes place after the drive has been installed, the end cap 11 removed and the gear 15 inserted so that the switch pin 16 actuates the pushbutton switch. After that the forehead cap 11 placed and firmly connected to the housing 10.

It can be seen that the arrangement described is a very space-saving reduction gear for actuation of the limit switch 17 creates. It is also possible to accommodate the second limit switch 8 in the same room, so that overall only a small length is required for these switch arrangements. This lsi » insofar as it is of importance, as the entire drive 5 between two adjacent openings 2 of the base plate 1, i.e. between two adjacent guide ropes are to be accommodated. These distances are fixed so that the housing length of the drive 5 is a critical variable.

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BATH ORIGINAL

The invention is not shown on and described embodiment limited _s rather is grateful to see @ & a corresponding arrangement for blinds vorzu- "",

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Claims (3)

Claims ι ' Arrangement of a limit switch of a motor in roller shutter or Venetian blind drives, characterized in that the limit switch comprises a pushbutton switch which is located in the gear housing of the drive is arranged, as well as Actuating element on an eccentric of the gear shaft Seated gear with a shift pin, which is arranged with a centrally to the gear shaft, internally toothed ring gear meshes, which is held non-rotatably in the drive housing. 2. Arrangement according to claim 1, characterized in that the eccentrically mounted gear in its angular position can be installed and that for this purpose the adjacent end cap of the drive can be removed. 3. Arrangement according to claim 1, characterized in that the end cap of the drive adjacent to the gear wheel Switch carries and in different angular positions is fixedly connectable relative to the gear with the drive housing. 509826/0 /, 00
BATH ORIGINAL