NO319506B1

NO319506B1 - Mounting element for installation ducts

Info

Publication number: NO319506B1
Application number: NO19963062A
Authority: NO
Inventors: Hans Mayer
Original assignee: Tehalit Gmbh
Priority date: 1995-08-02
Filing date: 1996-07-23
Publication date: 2005-08-22
Also published as: EP0757419A1; EP0757419B1; NO963062L; DE29512421U1; ATE165693T1; DE59600170D1; ES2117465T3; DK0757419T3; HK1012789A1; NO963062D0

Abstract

The mounting element has a longitudinal slot on its rear wall with a T-shaped cross-section and contg. a base, at least one opening in the base for a rotatable clamping part, with a T-head which can be inserted into the T-slot and which is operated from in front, and a guide cylinder erected over the opening.. A flat spring (29) with stepped lateral profile section (30) positioned in at least one aperture in the wall of the guide cylinder has a nose (29') on its free end pointing towards the centre of the cylinder (27). The clamping part (40) has a shaft fed into the cylinder and a recess into which the nose snaps

Description

Oppfinnelsen vedrører montasjeelementer ifølge ingressen til krav 1 for løsbar befestigelse av elektroinstallasjonsutstyr i elektroinstallasjonskanaler, som har et lengdespor med omtrent T-formet tverrsnitt på sin kanalbakvegg. The invention relates to assembly elements according to the preamble of claim 1 for releasable attachment of electrical installation equipment in electrical installation ducts, which have a longitudinal groove with an approximately T-shaped cross-section on its duct rear wall.

Et slikt montasjeelement er f.eks. kjent fra EP-A-0 584 444. Det kjente montasjeelementet har et dreibart klemelement med et T-formet hode, som kan innføres i T-sporet på kanalbakveggen og forankres etter en 90 graders dreining. Den for fremstillingen og frigjøringen av denne forankringen nødvendige hevarmdreiebevegelse av dette klemelementet sikres tvangsvis ved egnede utformede forhøyninger og fordypninger i bunnen av montasjeelementet. Betjeningen av klemelementet skjer via en skyvveivdrift. Such a mounting element is e.g. known from EP-A-0 584 444. The known mounting element has a rotatable clamping element with a T-shaped head, which can be inserted into the T-slot on the channel back wall and anchored after a 90 degree turn. The lifting arm turning movement of this clamping element necessary for the production and release of this anchoring is forcibly ensured by suitably designed elevations and recesses in the bottom of the assembly element. The clamping element is operated via a push crank drive.

I tidens løp har det vist seg at fremstillingen krever høy presisjon, og montasjen krever mye tid. De dermed forbundne kostnadene er uten tvil rettferdiggjort ved spesielle anvendelsestilfeller, likevel har man behov for en forenkling. In the course of time, it has been shown that the manufacture requires high precision, and the assembly requires a lot of time. The associated costs are undoubtedly justified in special application cases, but there is still a need for simplification.

Den deri liggende oppgave å forenkle fremstillings- og montasjeanstrengelsene betydelig, løses ved et montasjeelement med de kjennetegnende trekk fra krav 1. The inherent task of significantly simplifying the manufacturing and assembly efforts is solved by an assembly element with the characteristic features from claim 1.

De vesentligste fordeler ved den foreliggende oppfinnelse beror på den med et i sideriss trappeformet avsnitt utrustede flate fjær. Takket være denne formgivningen kan den flate fjæren avfjære så vel innover og utover som oppover og nedover, samt i omkretsretningen. Derigjennom er uten ytterligere tiltak en utligning av fremstillingstoleransene og oppnåelse av det nødvendige presstrykket mulig. Nesen på den flate fjæren er innsneppet i det omløpende innstikket på klemelementet og holder klemelementet sikkert fast i enhver situasjon. The most significant advantages of the present invention are due to the flat spring equipped with a step-shaped section in side view. Thanks to this design, the flat spring can spring inwards and outwards as well as upwards and downwards, as well as in the circumferential direction. As a result, without further measures, an equalization of the manufacturing tolerances and achievement of the required pressing pressure is possible. The nose of the flat spring is snapped into the circumferential insert on the clamping element and holds the clamping element securely in any situation.

Fordelaktig er det trappeformede avsnittet plassert i bunnområdet. Ifølge en videreutvikling av oppfinnelsen kan også føringssylinderen ha en trappeformet fot. Advantageously, the step-shaped section is located in the bottom area. According to a further development of the invention, the guide cylinder can also have a step-shaped foot.

Ifølge en foretrukket utførelsesform av oppfinnelsen er den flate fjæren dannet av en tresidig friskjæring i veggen og føringssylinderens fot og i bunnen. Denne utførelsesformen er spesielt fordelaktig når bunnen, føringssylinderen, den flate fjæren og eventuelt dennes trappeformede fot er sprøytet i ett stykke av plast. According to a preferred embodiment of the invention, the flat spring is formed by a three-sided cutout in the wall and the base of the guide cylinder and in the bottom. This embodiment is particularly advantageous when the bottom, the guide cylinder, the flat spring and possibly its step-shaped foot are sprayed in one piece of plastic.

Fordelaktig har føringssylinderen et kvadratisk tverrsnitt. På denne måten har det dreibare klemelementet henholdsvis dettes aksling kun en respektiv linjeformet kontakt med liten friksjon mot føringssylinderen. Advantageously, the guide cylinder has a square cross-section. In this way, the rotatable clamping element or its shaft only has a respective line-shaped contact with little friction against the guide cylinder.

Ifølge en fordelaktig videreutvikling av oppfinnelsen oppviser klemelementet en sektorformet, spesielt sirkelsektorformet, tallerken over T-hodet. Denne tallerkenen sitter fortrinnsvis i en fordypning, som er utformet i bunnens underside og fortrinnsvis i føringssylinderens trappeformede fots område. Denne tallerkenen forhindrer at klemelementet kan trekkes ut oppover fra føringssylinderen. According to an advantageous further development of the invention, the clamping element has a sector-shaped, especially circular sector-shaped, plate above the T-head. This plate preferably sits in a recess, which is formed in the underside of the base and preferably in the area of the step-shaped foot of the guide cylinder. This plate prevents the clamping element from being pulled upwards from the guide cylinder.

En vesentlig oppgave for den sektorformede tallerkenen er imidlertid, sammen med minst ett på bunnens underside, fortrinnsvis i fordypningsområdet anbrakt anslag, å begrense klemelementets dreievinkel til fortrinnsvis 90 grader. However, an essential task for the sector-shaped plate is, together with at least one abutment placed on the underside of the bottom, preferably in the recess area, to limit the angle of rotation of the clamping element to preferably 90 degrees.

Ved hjelp av tegningen skal oppfinnelsen forklares nærmere i form av et utførelseseksempel. Her viser: figur 1 et utsnitt av en perspektivisk fremstilling av et montasjeelement med en påformet With the help of the drawing, the invention shall be explained in more detail in the form of an exemplary embodiment. Here: figure 1 shows a section of a perspective representation of a mounting element with a shaped on

holdeinnretning for montasje av elektroinstallasjonsutstyr i elektroinstallasjonskanaler, holding device for mounting electrical installation equipment in electrical installation ducts,

figur 2 et grunnriss av holdeinnretningen i figur 1, figure 2 a floor plan of the holding device in figure 1,

figur 3 et snitt gjennom holdeinnretningen i figur 2 langs linjen III-III, figure 3 a section through the holding device in figure 2 along the line III-III,

figur 4 et snitt gjennom holdeinnretningen i figur 2 langs linjen IV-IV, figure 4 a section through the holding device in figure 2 along the line IV-IV,

figur 5 et riss av undersiden av holdeinnretningen i figurene 2-4, figure 5 a view of the underside of the holding device in figures 2-4,

figur 6 et grunnriss tilsvarende figur 2 av holdeinnretningen, imidlertid med figure 6 a plan corresponding to figure 2 of the holding device, however with

innsatt klemdel, inserted clamping part,

figur 7 et snitt gjennom holdeinnretningen i figur 6 langs linjen VII-VII med figure 7 a section through the holding device in figure 6 along the line VII-VII with

innsatt klemdel, inserted clamping part,

figur 8 et ytterligere snitt gjennom holdeinnretningen i figur 6 langs linjen VIII-VIII med innsatt klemdel, og figure 8 a further section through the holding device in figure 6 along the line VIII-VIII with inserted clamping part, and

figur 9 et grunnriss av undersiden av holdeinnretningen ifølge figurene 6-8 med figure 9 a plan view of the underside of the holding device according to figures 6-8 with

innsatt klemdel. inserted clamping part.

Figur 1 viser i utsnitt og perspektivisk fremstilling et montasjeelement 20 for montasje av utstyr, f.eks. elektroinstallasjonsutstyr (ikke vist) i elektroinstallasjonskanaler (ikke vist), med et T-formet spor på kanalens bakvegg. Montasjeelementet 20 består hovedsakelig av en bunn 21, sidevegger 22, en kabelinnføringsåpning 23 med enstykkig påformede befestigelsesstolper 24 for kabelklemanordningen (ikke vist) og med påformede førings- og holdestolper 25 for et lokk som skal settes på (ikke vist). Figure 1 shows a section and perspective view of a mounting element 20 for mounting equipment, e.g. electrical installation equipment (not shown) in electrical installation ducts (not shown), with a T-shaped groove on the back wall of the duct. The assembly element 20 mainly consists of a bottom 21, side walls 22, a cable insertion opening 23 with one-piece molded attachment posts 24 for the cable clamp device (not shown) and with molded guide and holding posts 25 for a cover to be fitted (not shown).

Videre ser man en føringssylinder 27 med kvadratisk tverrsnitt, som er rettet over en åpning 26 i bunnen 21. Furthermore, one sees a guide cylinder 27 with a square cross-section, which is directed over an opening 26 in the bottom 21.

Føringssylinderen 27 har en trappeformet fot 30'. Gjennom et tresidig frisnitt i området ved føringssylinderens 27 sidevegg, foten 30' og bunnen 21 er det dannet en flat fjær 27 med trappeformet fot 30, hvis form og funksjon skal forklares nærmere ved hjelp av de etterfølgende figurer. The guide cylinder 27 has a step-shaped foot 30'. Through a three-sided free cut in the area of the side wall of the guide cylinder 27, the foot 30' and the bottom 21, a flat spring 27 with a step-shaped foot 30 is formed, the shape and function of which will be explained in more detail with the help of the following figures.

Figurene 2-5 viser i grunnriss et første snitt, et andre snitt og sett nedenfra føringssylinderen 27, dens trappeformede fot 30', bunnen 21, åpningen 26 i bunnen 21 samt to flate fjærer 29 med trappeformede områder 30 i forstørret fremstilling. Figures 2-5 show in plan a first section, a second section and a view from below of the guide cylinder 27, its step-shaped foot 30', the bottom 21, the opening 26 in the bottom 21 and two flat springs 29 with step-shaped areas 30 in an enlarged representation.

Man ser at de flate fjærene 29 ved sine frie ender i tillegg er utrustet med en nese 29', som er orientert mot føringssylinderens 27 sentrum. It can be seen that the flat springs 29 at their free ends are additionally equipped with a nose 29', which is oriented towards the center of the guide cylinder 27.

Man ser videre at i bunnens 21 underside og i området ved føringssylinderens 27 trappeformede fot 30' er en fordypning 32 utformet. It can also be seen that in the underside of the bottom 21 and in the area of the step-shaped foot 30' of the guide cylinder 27, a recess 32 is formed.

Takket være det trappeformede området 30 kan de flate fjærene 29 ikke bare fjære innover og utover, men spesielt også oppover og nedover, likesom i omkretsretningen. Thanks to the stepped area 30, the flat springs 29 can not only spring inwards and outwards, but especially also upwards and downwards, as well as in the circumferential direction.

Detaljer ved dette gir seg av figurene 6-9, som viser holdeinnretningen i fremstillinger tilsvarende figurene 2-5, imidlertid med respektiv innsatt klemdel 40. Details of this are provided by Figures 6-9, which show the holding device in designs corresponding to Figures 2-5, however with the respective inserted clamping part 40.

Klemdelen 40 består av en sylindrisk aksling 41 med et omløpende innstikk 42, som korresponderer med de flate fjærene 29 henholdsvis disses neser 29'. Klemelementet 40 har en skrujernslisse på sin forfra tilgjengelige ende. På undersiden har klemdelen 40 et T-formet hode 43, med hvis hjelp montasjeelement 20 kan forankres i det T-formede sporet på en elektroinstallasjonskanals bakvegg. De øvre flatene av det T-formede hodet 43 er avskrådd for å lette låsingen i T-sporet. The clamping part 40 consists of a cylindrical shaft 41 with a circumferential insert 42, which corresponds to the flat springs 29 or their noses 29'. The clamping element 40 has a screwdriver slot on its front-accessible end. On the underside, the clamping part 40 has a T-shaped head 43, with the help of which the mounting element 20 can be anchored in the T-shaped groove on the rear wall of an electrical installation channel. The upper surfaces of the T-shaped head 43 are chamfered to facilitate locking in the T-slot.

Med en viss avstand fra T-hodet 43 er det på klemdelen 40 anbrakt en sirkelsektorformet tallerken 44. Denne sitter i fordypningen 32.1 fordypningens 32 område er det videre utformet et anslag 31, som samvirker med tallerkenen 44 og begrenser klemdelens 40 dreiebevegelser til 90 grader. At a certain distance from the T-head 43, a circular sector-shaped plate 44 is placed on the clamping part 40. This sits in the recess 32. In the area of the recess 32, a stop 31 is also designed, which cooperates with the plate 44 and limits the turning movements of the clamping part 40 to 90 degrees.

Claims

1. Mounting element (20) for releasable fastening of electrical installation equipment (10) in electrical installation ducts, which on its duct rear wall has a longitudinal groove with an approximately T-shaped cross-section, comprising a bottom (21), at least one opening (26) in the bottom (21), in which a clamping part (40) with a T-head (43) that can be inserted into the T-slot is rotatably inserted, which head can be operated from the front, and a guide cylinder 27 directed over the opening (26), characterized in that in the guide cylinder's (27) wall, at least one cut-out (28) is arranged, that in the cut-out (28) a flat spring (29) is placed, that the flat spring (29) has a step-shaped section (30) in side view, that the flat spring (27 ) on its free end has a nose (29<1>) directed towards the center of the guide cylinder (27), and that the clamping part (40) has a shaft (41) which is guided in the guide cylinder (27) and has an insert (42), into which the nose (29<1>) snaps.

2. Assembly element according to claim 1, characterized in that the step-shaped section (30) is located in the area of the bottom (21).

3. Assembly element according to claim 1 or 2, characterized in that the guide cylinder (27) has a step-shaped foot (30').

4. Assembly element according to one of claims 1-3, characterized in that the guide cylinder (27) has a square cross-section.

5. Assembly element according to one of claims 1-4, characterized in that the flat spring (29) is formed by a three-sided free-cut in the wall and the base (30') of the guide cylinder (27) and in the bottom (21).

6. Assembly element according to one of claims 1-5, characterized in that the clamping part (40) above the T-head (43) has a sector-shaped, especially circular sector-shaped, plate (44).

7. Assembly element according to one of claims 1-6, characterized in that a recess (32) is formed in the underside of the base (21) around the opening (26) and preferably in the area of the step-shaped foot (30') of the guide cylinder (27).

8. Assembly element according to one of claims 1-7, characterized in that on the underside of the base (21), preferably in the recess (32), a stop (31) is formed which limits the angle of rotation of the clamp part (40), preferably to 90 degrees.

9. Assembly element according to one of claims 1-8, characterized in that the bottom (21), the guide cylinder (27) and possibly the foot (30') are in one piece.

10. Assembly element according to one of claims 1-9, characterized in that the flat spring (29, 29', 30) and the base (21) are in one piece.