EP1752944B1 - Motion sensor with assembly base lower part and assembly base cover - Google Patents

Abstract

An assembly base lower unit and an assembly base cover (16) are connected by a bayonet connection comprised of cams engaged to cam guide slots (20,24). The bayonet connection enables rotation of the assembly base cover relative to the assembly base lower unit within a specific angle of rotation, preferably 60 degrees, between projections (23) and cam stops (22,26). Springs slide in the cam guide slots during rotation of the cams. Each cam guide slot has a projection that has to be overcome when a cam is introduced and against which the stop surface (34) of a spring presses. The projections prevent the cams from sliding out of the cam guide slots. The cam guide slots have cam stops to limit rotating motion.

Description

The invention relates to a motion detector with mounting base base and mounting base cover.

From the DE 102 21 292 A1 For example, there is known an installation device connection system usable in motion detectors, in which a main terminal space is formed between a mounting base and a mounting base cover. The mounting base base is fastened in a desired manner to a wall, whereupon the electrical connections can take place between lines emerging from the wall and main terminals arranged in the main connection space. Subsequently, the mounting base cover is attached to the mounting base base. Mounting base cover as well as mounting base base each have a mounting dome, whereby by screwing in a fastening screw mounting of both Befestigungsdome and thus a rigid connection between mounting base and base mounting base cover is made.

From the WO 97/12278 For example, an apparatus with a mechanism for releasably locking a two-part housing is known. A special tool engages over insertion fingers in side wall openings.

The invention has for its object to provide a motion detector, in which the connection between the base mounting base and mounting base cover is not rigid.

This object is achieved by a motion detector as claimed in the claims.

The advantages achieved by the invention are, in particular, that the connection between the mounting base base and mounting base cover can be produced and released without the use of tools. After installation of the motion detector on a wall rotation between mounting base and mounting base cover to a defined rotation angle is possible, creating a very precise alignment of the motion detector after completion of assembly is possible without any tools.

Further advantages will be apparent from the following description.

Advantageous embodiments of the invention are characterized in the subclaims.

Fig.1

eine Seitenansicht einer Montagesockel-Abdeckung mit Außen-Nockenführungsnuten und Innen-Nockenführungsnuten,

Fig. 2

eine Sicht in den Innenraum eines Montagesockel-Unterteils mit Nocken am Innenring, Nocken am Außenring und Federelementen,

Fig. 3

eine Sicht in den Innenraum einer Montagesockel-Abdeckung mit Außen-Nockenführungsnuten und Innen-Nockenführungsnuten,

Fig. 4

eine Detailansicht einer Außen-Nockenführungsnut mit Vorsprung,

Fig. 5

eine Detailansicht des Montagesockel-Unterteils mit einer Nocke am Innenring,

Fig. 6

eine Detailansicht des Montagesockel-Unterteils mit einem auf der Stirnfläche des Innenrings befindlichen Federelement,

Fig. 7

eine Ansicht der Unterseite der Bodenplatte des Montagesockel-Unterteils mit Weichkomponenten-Nocken und Zentral-Montageöffnung,

Fig. 8

eine "Explosionszeichnung" eines kompletten Bewegungsmelders,

Fig. 9

einen komplett montierter Bewegungsmelder mit Drehwinkel-Markierungen am Montagesockel-Unterteil und an der Montagesockel-Abdeckung.

The invention will be explained below with reference to the embodiments illustrated in the drawings. Show it:

Fig.1

a side view of a mounting base cover with outer cam guide grooves and inner Nockenführungsnuten,

Fig. 2

a view into the interior of a mounting base base with cams on the inner ring, cams on the outer ring and spring elements,

Fig. 3

a view into the interior of a mounting base cover with outer cam grooves and inner cam grooves,

Fig. 4

a detailed view of an outer Nockenführungsnut with projection,

Fig. 5

a detailed view of the mounting base with a cam on the inner ring,

Fig. 6

a detailed view of the mounting base base with a located on the end face of the inner ring spring element,

Fig. 7

a bottom view of the bottom plate of the mounting base base with soft component cam and central mounting hole,

Fig. 8

an "exploded view" of a complete motion detector,

Fig. 9

a fully mounted motion detector with rotation angle markings on the base of the mounting base and on the mounting base cover.

In Fig. 1 is a side view of a mounting base cover with outer cam guide grooves and inner cam guide grooves shown. The Mo ntagesockel-cover 16 consists of a cover plate 17 having a centrally formed hinge center portion 18 and a frontal ring 19, which on its outer circumferential surface two opposing outer Nockenführungsnuten 20 and at its Inner lateral surface has two opposing inner cam grooves 24. The total of four cam guide grooves 20, 24 are distributed symmetrically over the ring 19 and extend in the embodiment over each 60 °. The Nockenführungsnuten 20 and 24 respectively have cam-inlets 21 and 25 and end cam stops 22 and 26, respectively. The outer Nockenführungsnuten 20 each have a projection 23 in the immediate vicinity of the cam insertion 21.

On the cover plate 17, an annular, narrow spring-stop surface 34 is formed concentrically within the ring 19.

In Fig. 2 is a view into the interior of a mounting base base with cams on the inner ring, cams on the outer ring and spring elements shown. The mounting base base 1 has a bottom plate 2 with a plurality of openings 12 for line feed. On the bottom plate 2 of the mounting base part 1, an outer ring 3 and an inner ring 4 are formed, wherein between these two rings 3, 4, an annular groove 5 is formed. On the outer circumferential surface of the inner ring 4 are two offset by 180 ° staggered cam 6 angefomt. On the inner circumferential surface of the outer ring 3 are two 180 ° staggered cam 8 angefomt. The four cams 6, 8 are symmetrically distributed over the rings 3, 4 and corresponding to the cam-inlets 21, 25 of the mounting base cover 16, ie at 90 °, 180 °, 270 ° and 360 ° occurs depending on a cam.

Opposite the cam 8 (and slightly offset this) and on both sides of the cam 6 ribs 7 are formed on the inner ring 4. On both sides of the cam 8 and with respect to the cam 6 (and somewhat offset from this) ribs 9 are provided on the outer ring 3.

On the end face of the inner ring 4, a plurality of spring elements 10 are integrally formed. In the embodiment, four offset by 90 ° to each other staggered spring elements 10 are provided.

In Fig. 3 a view is shown in the interior of a mounting base cover 16 with .Outside cam guide grooves and inner cam guide grooves. It is the course of an outer Nockenführungsnut 20 with cam insertion 21, projection 23 and cam stop 22 and the course of an inner Nockenführungsnut 24 with cam insertion 25 and cam stop 26 can be seen. The hinge center section 18 is open to the mounting base interior bounded by the cover plate 17 with ring 19 in order to allow the passage of lines to the sensor head.

In Fig. 4 is a detailed view of an introduced in the ring 19 of the mounting base cover 16 outer Nockenführungsnut shown with a projection. As can be seen, a cam introduced into the outer Nockenführungsnut 20 via the cam-introduction 21 (see cam 8 on the outer ring 3 according to FIG Fig. 2 ) first overcome the projection 23 located near the cam insertion before sliding along the main portion of the outer cam guide groove 20 is possible.

In Fig. 5 is a detailed view of the mounting base part 1 with a cam 6 on the inner ring 4 shown. On both sides of the cam 6, a rib 7 is integrally formed on the inner ring 4. On the outer ring 3 with respect to the cam 6 two ribs 9 are formed. Furthermore, a spring element 10 and an opening 12 in the bottom plate 2 for line feed can be seen in the mounting base interior.

In Fig. 6 is a detailed view of the mounting base part 1 with a located on the end face of the inner ring 4 spring element 10 is shown. Between the band-shaped spring element 10 and the ring end face a recess 11 is formed, which allows a resilient movement of the spring element 10 toward the ring end face. In the lower section of the Fig. 6 are details for the formation of the underside of the bottom plate 2 to recognize, namely a limiting ring 14, over which a plurality of individual soft component cams 15 protrude.

• ist eine in Fig. 2 gezeigte zentrale Verschraubung durch die Zentral-Montageöffnung 13 vorgesehen und
• sind an Unterseite der Bodenplatte 2 des Montagesockel-Unterteils 1 mehrere in den Fig. 6, 7 gezeigte symmetrisch angeordnete Weichkomponenten-Nocken 15 vorgesehen.

In order to prevent deformation of the mounting base base 1 during assembly on a bumped wall surface,

• is an in Fig. 2 shown central screw through the central mounting hole 13 and provided
• are at the bottom of the bottom plate 2 of the mounting base base 1 more in the Fig. 6 . 7 shown symmetrically arranged soft component cam 15 is provided.

These soft component cams 15 are elastically compressible until a limiting ring 14 contacts the wall surface. The deformation-free mounting of the mounting base part 1 is important for a proper functioning of the bayonet closure, in particular for a smooth rotary mobility between mounting base and base mounting base, of importance.

In Fig. 7 a view of the underside of the bottom plate of the mounting base base 1 is shown with soft component cam and central mounting hole. As mentioned above, the bottom plate 2 has a restriction ring 14 (made of a relatively hard plastic material) and a plurality of soft component cams 15 (made of an elastic material). There are also a plurality of openings 12 for line feed and the central mounting opening 13 can be seen.

• das vorstehend erläuterte Montagesockel-Unterteil 1,
• die am Montagesockel-Unterteil 1 zu befestigende vorstehend erläuterte Montagesockel-Abdeckung 16,
• eine Bewegungsmelderkopf-Haube 27, welche über ein Scharniergelenk 29 schwenkbar an der Montagesockel-Abdeckung 16 befestigt ist,
• ein Sensorkopf 30 inklusive optischem System, Elektronik und Einstellungs-Stiften, welcher unter Zwischenlage eines Dichtrings 31 an der Bewegungsmelderkopf-Haube 27 zu befestigen ist,
• eine um das Scharniergelenk 29 greifende Gelenk-Abdeckung 32.

In Fig. 8 is an "exploded view" of a complete motion detector shown. The main components of the motion detector are

• the above-described mounting base base 1,
• the mounting base cover 16 to be fixed to the mounting base lower part 1 explained above,
• a motion detector head hood 27, which is pivotally attached to the mounting base cover 16 via a hinge joint 29,
• a sensor head 30 including optical system, electronics and setting pins, which is to be fastened to the motion detector head hood 27 with the interposition of a sealing ring 31,
• a hinged around the hinge joint 29 joint cover 32nd

• aus dem an der Montagesockel-Abdeckung 16 angeformtem Gelenk-Mittelabschnitt 18,
• aus zwei an der Bewegungsmelderkopf-Haube 27 angeformten Gelenk-Seitenabschnitten 28
• und zwei Gelenkzapfen

gebildet, wobei jeder Gelenkzapfen einen Gelenk-Seitenabschnitt 28 mit dem Gelenk-Mittelabschnitt 18 verbindet. Das Scharniergelenk 29 weist eine Mikro-Rastung auf, wodurch eine dauerhafte Einstellung eines gewünschten Winkels zwischen Bewegungsmelderkopf-Haube 27 und Montagesockel-Abdeckung 16 ermöglicht wird.In this case, the hinge joint 29

• from the molded on the mounting base cover 16 hinge center portion 18,
• of two joint side sections 28 integrally formed on the motion detector head cover 27
• and two pivot pins

formed, wherein each hinge pin connects a hinge side portion 28 with the hinge center portion 18. The hinge joint 29 has a micro-detent, whereby a permanent adjustment of a desired angle between the motion detector hood 27 and mounting base cover 16 is made possible.

Routing from the mounting base interior formed by mounting base lower part 1 and mounting base cover 16 to the sealed interior of the sensor head 30 is performed by the hinge center section 18 and at least one pivot pin to at least one hinge side portion 28 and from there into the motion detector head hood 27th wherein the hinge cover 32 partially covers this routing.

• des Sensorkopfes 30 gegenüber der Bewegungsmelderkopf-Haube 27 und
• der Montagesockel-Abdeckung 16 gegenüber dem Montagesockel-Unterteil 1 ist eine äußerst exakte Justierung des Bewegungsmelders nach abgeschlossener Montage möglich.

In Fig. 9 a fully mounted motion detector is shown, consisting of mounting base base 1, mounting base cover 16, motion detector hood 27, sensor head 30 and hinge cover 32. rotation angle marks 33 on the mounting base base 1 and on the mounting base cover 16 are used for Identification of the currently set relative rotation between mounting base part 1 and mounting base cover 16. The sensor head 30 can be rotated relative to the motion detector head cover 27 within the framework of a predetermined angle of rotation. By the possibility of twisting

• the sensor head 30 relative to the motion detector head hood 27 and
• the mounting base cover 16 opposite the mounting base base 1 is a very precise adjustment of the motion detector after completion of assembly possible.

• der erste Endanschlag der Drehbewegung erreicht ist, sobald die Nocken 6 bzw. 8 die Nocken-Anschläge 26 bzw. 22 der Nockenführungsnuten 24 bzw. 20 berühren,
• der zweite Endanschlag der Drehbewegung erreicht ist, sobald die Nocken 8 die Vorsprünge 23 der Innen-Nockenführungsnut 24 berühren.

For mounting the mounting base cover 16 on (already mounted on a wall) mounting base base 1, the ring 19 of the mounting base cover 16 is inserted into the annular groove 5 of the mounting base 2 so that the four cam-inlets 21, 25 the Cams 6, 8 are exactly opposite and an engagement of the cams 6, 8 in this cam-inlets 21, 25 is made possible. By Verd rehung the Mounting base cover 16 relative to the mounting base base 1 slide the cams 6, 8 in the Nockenführungsnuten 20, 24, wherein at the same time slide the spring elements 10 along the spring-stop surface 34. First, the cam 8 must overcome the introduced in each outer Nockenführungsnut 20 projection 23, for which purpose the spring force of the pressed against the spring-stop surface 34 spring elements 10 is overcome. Once these projections 23 are overcome, a rotation of the mounting base cover 16 relative to the mounting base part 1 within predetermined rotational angle ranges - preferably within 60 ° - easily possible, wherein

• the first end stop of the rotational movement is reached as soon as the cams 6 and 8 touch the cam stops 26 and 22 of the cam guide grooves 24 and 20,
• the second end stop of the rotational movement is achieved as soon as the cams 8 touch the projections 23 of the inner Nockenführungsnut 24.

To mark the currently set rotation are base plate base 1 and mounting base cover 16 with in Fig. 1 and 9 shown angle of rotation marks 33 provided. The symmetrically formed on the inner ring 4 and the outer ring 3 in the direction of annular groove 5 ribs 7 and 9 ensure a backlash-free rotation of the mounting base cover 16 relative to the mounting base part 1 with low contact surfaces and consequently low frictional resistance.

To disassemble the mounting base cover 16 from the mounting base part 1, the cam 8 must overcome the projections 23, for which purpose the spring force of the pressed against the spring-stop surface 34 spring elements 10 is overcome. Subsequently, the cams 6 and 8 can lead out of the cam guide grooves 24 and 20 via the cam feed-ins 25 and 21, respectively. The mounting base cover 16 can be removed from the mounting base base 1.

• das Montagesockel-Unterteil 1 mit mindestens einem Ring (Außenring 3 und/oder Innenring 4) versehen ist, welcher Nocken (8 und/oder 6) aufweist,
• die Montagesockel-Abdeckung 16 korrespondierende Nockenführungsnuten (Außen-Nockenführungsnut 20 und/oder Innen-Nockenführungsnut 24) zum Eingriff der Nocken des Montagesockel-Unterteils aufweist.

In the embodiment described above, a configuration is assumed in which

• the mounting base part 1 is provided with at least one ring (outer ring 3 and / or inner ring 4) which has cams (8 and / or 6),
• the mounting base cover 16 has corresponding cam guide grooves (outer cam guide groove 20 and / or inner cam groove 24) for engaging the cams of the mounting base lower part.

• die Montagesockel-Abdeckung 16 mit mindestens einem Ring (Außenring und/oder Innenring) versehen ist, welcher Nocken aufweist,
• das Montagesockel-Unterteil 1 korrespondierende Nockenführungsnuten (Außen-Nockenführungsnut und/oder Innen-Nockenführungsnut) zum Eingriff der Nocken der Montagesockel-Abdeckung aufweist.

Of course, embodiments can be realized in the opposite direction, in which

• the mounting base cover 16 is provided with at least one ring (outer ring and / or inner ring) which has cams,
• the mounting base lower part 1 has corresponding cam guide grooves (outer cam guide groove and / or inner cam guide groove) for engaging the cams of the mounting base cover.

• die lediglich zwei Nockenführungsnuten und/oder lediglich zwei Nocken aufweisen,
• die mehr als vier Nockenführungsnuten und/oder vier Nocken aufweisen,
• bei denen die Nocken nicht an einem Ring angeformt sind, sondern über einen geeigneten Befestigungsabschnitt direkt mit dem Montagesockel-Unterteil oder mit der Montagesockel-Abdeckung verbunden sind.

Furthermore, embodiments are also feasible,

• which have only two cam guide grooves and / or only two cams,
• have more than four Nockenführungsnuten and / or four cams,
• in which the cams are not formed on a ring, but are connected via a suitable attachment portion directly to the mounting base base or with the mounting base cover.

LIST OF REFERENCE NUMBERS

1

Mounting base-base

2

baseplate

3

outer ring

4

inner ring

5

ring groove

6

Cam on the inner ring

7

Ribs on the inner ring

8th

Cam on the outer ring

9

Ribs on the outer ring

10

Spring elements on the end face of the inner ring

11

Recess between spring element and end face

12

Openings for cable feed

13

Central mounting hole

14

limiting ring

15

Soft-component cams

16

Mounting base cover

17

cover plate

18

Articulation means section

19

ring

20

Exterior cam groove

21

Cam Introduction

22

Cam stop

23

head Start

24

Indoor cam groove

25

Cam Introduction

26

Cam stop

27

Motion detector hood with cable feedthroughs

28

Joint-side portions

29

Hinge joint with pivot pin

30

Sensor head including optical system, electronics u. Setting pins

31

seal

32

Joint-cover

33

Angular markings

34

annular spring stop surface

Claims (5)

1. A motion detector, comprising a lower assembly base part (1) mounted on a wall and an assembly base cover (16) fastened to the lower assembly base part (1), with the lower assembly base part (1) and the assembly base cover (16) being connected with each other in a rotationally movable manner by a bayonet connection (6, 8, 20, 24) in that cams (6, 8) engage in corresponding cam guide grooves (20, 24) and are guided there,

   a) with the cam guide grooves (20) having a projection (23) which must be overcome during the insertion of the cam (8), for which purpose the spring force of spring elements (10) which are pressed against a spring contact surface (34) need to be overcome, and with the projection (23) preventing any sliding of the cam (8) out of the cam guide grooves (20);

   b) with the cam guide grooves (20, 24) being provided with cam stops (22, 26) for limiting the rotational movement;

   c) with both outside cam guide grooves (20) and also inside cam guide grooves (24) being provided in which respective cams (8, 6) engage;

   d) with one configuration with two concentric rings (3, 4) being provided which each comprise cams (8, 6), with a ring (19) engaging in the annular groove (5) formed between both rings (3, 4), which ring is provided with outside cam guide grooves (20) and inside cam guide grooves (24);

   e) with a twisting possibility of the assembly base cover (16) being enabled in relation to the lower assembly base part (1) within a predetermined rotation angle range between projection (23) and cam stops (22, 26) by means of the bayonet connection (6, 8, 20, 24) and thus enabling an extremely precise adjustment of the motion detector after completed mounting;

   f) with the cams (6, 8) sliding in the cam guide grooves (20, 24) during the twisting and the spring elements (10) sliding simultaneously along the spring contact surfaces (34).
2. A motion detector according to claim 1, characterized in that the ribs (7, 9) ensure a play-free rotation of lower assembly base part (1) and assembly base cover (16) against one another.
3. A motion detector according to claim 1 or 2, characterized in that the lower assembly base part (1) and the assembly base cover (16) comprise markings (33) for the rotation angle.
4. A motion detector according to one of the preceding claims, characterized in that the lower assembly base part (1) is provided with a central mounting opening (13) in its base plate (2).
5. A motion detector according to one of the preceding claims, characterized in that the lower assembly base part (1) comprises a plurality of soft-component cams (15) made of an elastic material on the bottom side of its base plate (2).

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