DE102008045004A1 - Electric flush-mounted installation device e.g. switch, has sliding surfaces for releasing spring arms when cover frame moves towards wall, where cover frame is pressed against printed circuit board by spring force of spring arms - Google Patents

Abstract

The device (1) has a printed circuit board (4) with a set of locking hooks (11) arranged at free ends of spring arms, where compression direction of the spring arms is orthogonal to a mounting direction of a cover frame (15). Maximum compression of the spring arms is achieved when edges of central surfaces and sliding surfaces contact each other. The sliding surfaces slide opposite to each other and release the spring arms when the cover frame moves towards a wall (25). The cover frame is pressed against the circuit board by spring force of the spring arms.

Description

The Invention relates to a flush-mounted electrical installation device, as switch, dimmer, socket or the like with a device insert with Support plate and a cover frame attached thereto.

In the DE 20 2007 006 978 U1 It is explained that result from applied to a wall coverings - such as paints, coatings, fillers, wallpaper or the like, different heights for the installed UP electrical appliances or height differences between the parts of modular devices. If z. B. papered in the initial installation on the then then cut empty can, the wallpapering in the renovation is usually done with the device mounted, ie on / on the support rings of the insert. In the last example, a cover frame spanning the supporting ring of the insert and resting on the wallpaper builds higher up to the tapes; In this case, the support ring should be cut free to remove the coating. Usually, a wallpaper compensation strength of up to 3 mm is assumed in the installation devices and taken into account mechanically and electrically on the product side.

From the aforementioned DE 20 2007 006 978 U1 is a device for wallpaper compensation in electrical installation equipment - especially in concealed (UP) devices of electrical installation technology, such as switches, dimmers and sockets o. The like. Known, with a mounted on the support ring groove / recess - and these overlapping - provided outer frame of an installation device in a the support ring width only partially overlapping frame central part with a provided on the outer edge up to a height corresponding to the Wallpaper compensation grid by means of a formed on the inner edge of the outflowing groove / recess of the outer frame latching strips flush snapped.

From the DE 199 42 803 A1 is an electrical installation device with functional insert, central cover and frame known, resulting in attachment of the central cover on the functional unit attachment of the interposed frame. The functional insert is provided with at least two opposing undercuts and the central cover is provided with at least two corresponding latching hooks, resulting in a releasable latching connection between functional insert and central cover. The central cover has at least two opposing spring elements which press against the frame. As a result, the distance between the central cover and functional use is independent of distance fluctuations always the same.

Of the Invention is based on the object, an electrical flush (UP) installation device with a device insert with carrier plate and a thereto specify fixed cover, which in an optimal way and Make a wallpaper compensation respectively plaster compensation respectively Tolerance compensation when fixing the cover frame on the Support plate allows.

• a) wobei die Trägerplatte mit mehreren Rasthaken versehen ist, welche an freien Enden von Federarmen angeordnet sind und zwei unterschiedlich geneigte Flächen, nämlich eine Zentrierfläche und eine sich anschließende Gleitfläche aufweisen, derart, dass Zentrierfläche und Gleitfläche eine gemeinsame erste Kante bilden,
• b) wobei der Abdeckrahmen mit zu den Rasthaken korrespondierend angeordneten Rippen versehen ist, welche zwei unterschiedlich geneigte Flächen, nämlich eine Zentrierfläche und eine sich anschließende Gleitfläche aufweisen, derart, dass Zentrierfläche und Gleitfläche eine gemeinsame zweite Kante bilden,
• c) wobei die Federrichtung der Federarme orthogonal zur in Richtung zur Wand hin verlaufenden Montagerichtung des Abdeckrahmens ist,
• d) wobei nach Aufsetzen des Abdeckrahmens auf die Trägerplatte und Druckausübung in Richtung zur Wand hin zunächst die zueinander korrespondierenden Zentrierflächen gegeneinander gleiten und gleichzeitig ein Auslenken und damit Spannen der Federarme erfolgt,
• e) wobei die maximale Einfederung der Federarme erreicht ist, sobald sich erste und zweite Kanten berühren,
• f) wobei bei weiterer Bewegung des Abdeckrahmens in Richtung zur Wand hin die zueinander korrespondierenden Gleitflächen gegeneinander gleiten und gleichzeitig ein Entspannen der Federarme erfolgt,
• g) wodurch der Trägerrahmen infolge der Federkraft der Federarme gegen die Trägerplatte gedrückt wird.

This object is achieved by an electrical flush-mounted installation device with a device insert with support plate and a cover frame attached thereto,

• a) wherein the carrier plate is provided with a plurality of latching hooks, which are arranged at free ends of spring arms and two differently inclined surfaces, namely a centering surface and a subsequent sliding surface, such that the centering surface and sliding surface form a common first edge,
• b) wherein the cover frame is provided with ribs corresponding to the arranged ribs, which have two differently inclined surfaces, namely a centering surface and a subsequent sliding surface, such that the centering surface and sliding surface form a common second edge,
• c) wherein the spring direction of the spring arms is orthogonal to the direction of the wall extending mounting direction of the cover frame,
• d) after placing the cover frame on the support plate and pressure in the direction towards the wall initially the mutually corresponding centering surfaces slide against each other and at the same time a deflection and thus tensioning of the spring arms,
• e) wherein the maximum deflection of the spring arms is achieved as soon as the first and second edges touch,
• f) with further movement of the cover frame in the direction towards the wall, the mutually corresponding sliding surfaces slide against each other and at the same time there is a relaxation of the spring arms,
• g) whereby the support frame is pressed due to the spring force of the spring arms against the support plate.

The particular advantages of the invention are that the cover frame is quasi-automatic and driven by the Spring force of the tensioned spring arms pulled towards the wall so that the bottom edge of the cover frame is always on the where appropriate with wallpaper stuck wall and an uneven wall course automatically compensated.

Advantageous embodiments of the invention are characterized in the subclaims.

The Invention will be described below with reference to the drawing Embodiments explained. Show it:

1 a section through a mounted in a wall-mounted with a wallpaper electrical installation device,

2 a detailed view too 1 with representation of the proposed locking connection,

3 a section through an electrical installation device mounted in a wall provided without a wallpaper,

4 a detailed view too 3 with representation of the proposed locking connection,

5 a perspective view of the underside of a cover frame,

6 a detailed view too 5 with representation of the latching connection elements,

7 a view of a carrier plate,

8th a detailed perspective view 7 with representation of the latching connection elements,

9 - 14 Sketches to illustrate the individual phases of assembly / disassembly of a checkered frame.

• – mehrere Rasthaken 11 der Trägerplatte 4,
• – hierzu korrespondierend mehrere Rippen 19 des Abdeckrahmens 15.

In 1 is a section through a mounted in a wall-mounted with a wall mounted electrical installation device. The electrical installation device 1 consists of a device insert (flush-mounted insert) 3 with front support plate 4 and a cover frame 15 , which on the carrier plate 4 is snapped. For this latching connection the following latching connection elements are provided:

• - several locking hooks 11 the carrier plate 4 .
• - Corresponding to several ribs 19 of the cover frame 15 ,

Here is the device insert 3 z. B. designed as a socket insert and in a flush box 24 mounted in a wall 25 is introduced. The surface of the wall is with a wallpaper 26 pasted.

In 2 is a detail view too 1 shown with representation of the proposed locking connection. As can be seen, one has at the free end of a spring arm 9 arranged latching hook 11 two differently inclined surfaces, namely a centering surface 12 and a sliding surface 13 , Corresponding to this, one preferably has one piece with the cover frame 15 connected rib 19 also two differently inclined surfaces, namely a centering surface 20 and an inclined sliding surface (inclined plane) 21 , The spring arm 9 is resilient and preferably integral with the carrier plate 4 connected. In 2 are also a section of the device insert 3 as well as the wall 25 with applied wallpaper 26 and installed flush-mounted box 24 to recognize.

In 3 Fig. 3 is a section through an electrical installation device mounted in a wall without a wallpaper. In this case, all construction components, with the exception of the non-existing wallpaper in the same way as in 1 designated.

In 4 is a detail view too 3 shown with representation of the proposed locking connection. In this case, all construction components, with the exception of the non-existing wallpaper in the same way as in 2 designated. While the cover frame 15 with its lower edge 22 in the embodiment according to the 3 . 4 without wallpaper directly against the surface of the wall 25 presses, presses the bottom edge 22 in the embodiment with wallpaper according to the 1 . 2 against the wallpaper 26 ,

In 5 is a perspective view of the underside of a cover frame shown. The cover frame 15 has a main level 16 with at right angles molded thereto, circumferential end face 18 on which the mentioned lower edge 22 having. In the main level 16 is a window 17 introduced to access to electrical components of the device insert 3 to form a socket, a switch, etc. to obtain. As in 5 recognizable, several ribs extend 19 in the direction of the end faces 18 enclosed interior. In the embodiment, four ribs 19 provided, with the ribs 19 may also be in the form of double ribs, as shown.

In 6 is a detail view too 5 shown with representation of the latching connection elements, from the formation of a preferably integrally with the end face 18 of the cover frame 15 connected rib 19 - here z. B. executed in the form of a double rib - with its two different inclined surfaces, namely the centering 20 and the subsequent oblique sliding surface (inclined plane) 21 evident. The mounting direction, ie the direction the direction of the attachment of the cover frame 15 on the carrier plate 4 and the opposite direction of lifting the cover frame 15 from the carrier plate 4 is labeled B. B runs parallel to the face 18 and perpendicular to the main plane 16 ,

In 7 is a view of a carrier plate shown. The carrier plate 4 has a main level 5 with at right angles to this circumferentially molded end face 7 on. In the main level 5 are marginally at the place of (in the embodiment, four) locking connections each grooves 8th parallel to the face 7 introduced, so that in each case spring arms 9 be formed, at the free ends 10 each the locking hooks 11 are arranged. Corresponding to the window 17 of the cover frame 15 has the carrier plate 4 recesses 6 for engagement of plug contacts. The orthogonal to the mounting direction B and orthogonal to the end face 7 extending spring direction of the spring arms 9 is denoted by A.

In 8th is a perspective detail view too 7 shown with representation of the locking connection elements. It's the one in the main level 5 the carrier plate 4 introduced groove 8th to recognize, through which a section of the face 7 in a spring arm 9 is transformed at the free end 10 the outwardly directed latching hook 11 is arranged, which has two different inclined surfaces, namely the centering 12 and the subsequent sliding surface 13 ,

• – eine erste Kante 14 , welche Zentrierfläche 12 und Gleitfläche 13 des Rasthakens 11 miteinander bilden,
• – eine zweite Kante 23, welche Zentrierfläche 20 und Gleitfläche 21 der Rippe 19 miteinander bilden.

In the 9 - 14 are sketches to illustrate the individual phases of assembly / disassembly of a Abckeckrahmens 15 shown. It shows 9 First, the state before the start of assembly, in which the rib 19 from the latching hook 11 is spaced. Two edges can be seen, namely

• - a first edge 14 , which centering surface 12 and sliding surface 13 of the latching hook 11 form each other,
• - a second edge 23 , which centering surface 20 and sliding surface 21 the rib 19 form together.

For mounting the cover frame 15 on the carrier plate 4 becomes the cover frame 15 such on the support plate 4 put on that the centering surfaces 20 on the centering surfaces 12 seated. Once pressure on the cover frame 15 towards the wall 25 is exercised - see mounting direction B in the 6 and 10 - slide the centering surfaces 12 . 20 against each other, with the spring arms 9 at the same time inwards, ie towards the main level 5 the carrier plate 4 be deflected and stretched - see spring direction A in the 7 and 10 ,

When passing through the centering surfaces 12 / sliding surfaces 13 formed first edges 14 the locking hook 11 through the centering surfaces 20 / sliding surfaces 21 formed second edges 23 the ribs 19 Touch, is the maximum "deflection" of the spring arms 9 achieves what is in 11 is shown.

Upon further movement of the cover frame 15 towards the backing plate 4 is now - due to the spring force of the maximum tensioned spring arms 9 - the cover frame 15 towards the wall 25 pulled out, now at the same time the sliding surfaces 13 . 21 slide against each other and the spring arms 9 relax. The spring arms 9 move back outward - see A in 12 - until the bottom edge 22 of the cover frame 15 on the wallpaper 26 respectively on the wall 25 sits in what is 13 respectively 14 is shown.

Generally, the spring arms 9 parallel to the wall 25 work and that through the inclined surfaces (centering surfaces 12 . 20 , Sliding surfaces 13 . 21 ) the desired spring forces orthogonal to the wall 25 result.

For disassembly of the cover frame 15 from the carrier plate 4 becomes a tool (eg a screwdriver blade) between lower edge 22 and wall 25 or wallpaper 26 brought to so the cover frame 15 from the carrier plate 4 "Pry". First slide the sliding surfaces 13 . 21 while simultaneously tensioning the spring arms 9 (Deflection of the spring arms inwards, ie in the direction of the main plane 5 the carrier plate 4 towards) against each other. After the above-mentioned edges 14 respectively 23 the locking hook 11 respectively the ribs 19 have touched - see 13 -, slide the centering surfaces 12 . 20 while simultaneously relaxing the spring arms 9 against each other, the locking connection between cover frame 15 and support plate 4 is solved and the cover frame 15 can be removed from the carrier plate 4 take off.

1

electrical installation device

2

3

Service outlet (Flush-)

4

support plate

5

main level

6

recesses for engagement of plug contacts

7

face

8th

groove

9

spring arm

10

free End of the spring arm

11

latch hook

12

centering

13

sliding surface

14

first edge

15

Cover

16

main level

17

window

18

face

19

rib

20

centering

21

slope Sliding surface (inclined plane)

22

lower edge

23

second edge

24

Flush-mounted box

25

wall

26

wallpaper

A

spring direction

B

mounting direction

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 202007006978 U1 [0002, 0003]
• - DE 19942803 A1 [0004]

Claims (3)

Electric flush-mounted installation device ( 1 ) with a device insert ( 3 ) with carrier plate ( 4 ) and a cover frame attached thereto ( 15 ), a) wherein the carrier plate ( 4 ) with several latching hooks ( 11 ), which at free ends ( 10 ) of spring arms ( 9 ) are arranged and two differently inclined surfaces, namely a centering surface ( 12 ) and a subsequent sliding surface ( 13 ), such that the centering surface ( 12 ) and sliding surface ( 13 ) a common first edge ( 14 ), b) the cover frame ( 15 ) with the latching hooks ( 11 ) correspondingly arranged ribs ( 19 ), which two differently inclined surfaces, namely a centering surface ( 20 ) and a subsequent sliding surface ( 21 ), such that the centering surface ( 20 ) and sliding surface ( 21 ) a common second edge ( 23 ), c) wherein the spring direction (A) of the spring arms ( 9 ) orthogonal to the wall ( 25 ) extending mounting direction (B) of the cover frame ( 15 ), d) after placing the cover frame ( 15 ) on the carrier plate ( 4 ) and pressure in the direction of the wall first, the mutually corresponding centering surfaces ( 12 . 20 ) slide against each other and at the same time a deflection and thus tensioning of the spring arms ( 9 ), e) the maximum deflection of the spring arms ( 9 ) is reached as soon as the first and second edges ( 14 . 23 f), whereby upon further movement of the cover frame ( 15 ) towards the wall ( 25 ) the mutually corresponding sliding surfaces ( 13 . 21 ) slide against each other while relaxing the spring arms ( 9 ), g) whereby the support frame ( 15 ) due to the spring force of the spring arms ( 9 ) against the carrier plate ( 4 ) is pressed. Flush-mounted installation device according to claim 1, characterized in that in a carrier plate ( 4 ) with main level ( 5 ) and at right angles to this circumferentially integrally formed end face ( 7 ) for the formation of spring arms ( 9 ) at the edge in the main plane ( 5 ) Grooves ( 8th ) are introduced. Flush-mounted installation device according to claim 1 or 2, characterized in that in a cover frame ( 15 ) with main level ( 16 ) and at right angles to this circumferentially integrally formed end face ( 18 ) at this end face ( 18 ) several ribs ( 19 ) are provided.