HUE024548T2 - Szerelési szerkezet egy szerelési egység rögzítésére egy szerkezetrészen, fõként egy további szerelési egység külsõ házán - Google Patents

Description

ΑδΕΕΜΒΧ,Υ DEVICE EM ATIAMMENT OF AN ASSEMBLY TO A COMPONENT. IH FARTIODEAD AN ENTiiNAE HOUSING OF ANOTHER ASSEMBLY pesenpöntt:

Die invention rClaksto an asssorhty generated firm·. Ikskning a módúk afta comptent, In particular an outside housing of »«other nunlufe according so the pre^îîBte of Baieaf çiaim lit is known îlîsat éterünk imits, isr ss modules can be mounted by means: of fastening screws on a component, tor example, on an outside housing of another meduk*{see for example US <33?90?6B)

Figure 3: Bihstts^is such a sltumiou acexadiog to teteh a module i as an elecftoois anaiyxer of a filling: level meter fa to he attached as an additional module by means of a screw connection to an outside housing 2 of the filling level. Akten Fdf niodhtihg* the Aeduls \ is attached to a supporting clement pot shewn in Eigorc- :2| of the outside housing 2 beSjré leíhgíÉiSieoed the eompmte§:Sd ihat the module I is suppotetiheïitei

Aeootdiog to this Figure 3, the outside housing 2 has a teemng dome 3 as· it shrte pawkr with.-a blind thread 4 for receiving a thread arranged on a shah 5 of a fastening screw &amp;.. For pis: purpose %e fastening screw 6 i&amp; guided through a tiuough-opening t arranged on a screw carrier S and is screwed into the thread of the fastening dome 3. Secansc of toldranccs to dimensions: of the parts Involved in the fastening, &amp;' potiteOr the ^porting element with regard io its Prashsäsos and its position, the screw carrier .8 does not He dhoefly on the end face of the fastening dome 3 feat instead: is puiled Into surface contact with the fastening dome 3 only by being means of tbe foskomg sermv A is the screw carrier S drawn Into surface contact through the screw head A resting: on the screw carrier 8, i.e., it is pressed against tbs; end lace of the hastening te 3 washout any gags so that mechanical stresses buiid up in the parts involved.

The disadvantage of soeh a fastening device coosslsts of the· fact Pat the mechanical stresses: built up due to the lack of compensation for tolerance can lead to excessive loads to failure of the screw carrier 8 due ioeraeldng or breakage when the dimensismsl tolerances of the parts involved add up unfavorably. Furthermore such a static long-term load can cause a sddiittg behavior due to the increase in materip deforamtien ovora: period of time; when using plate for the pads involved so that the presfrexs is reduced hut in the worst case it disappears completely.

The object of the invention is to provide an assembly of the type de lined in the introduction with which the toidrsneuS of the parts involved are to be compensated. In particular the module should he held: on the outside housing wtÉ the tnost constant possible fines over the inieddúái:!M^ú^er#'ú^''úió^ T his ohjem A achieved :by a® assembly having Ae fempres: pf Estent Claim f, The iaventäs« approach comprises the features that - the screw shaft of the fastening screw has s frost: shaft sscfkft with a thread, this front- shaft sectios being sceommodâiêd in the fastening position by the Inside thread ofths;thread earner, and - the screw shaft of the: iastshittg screw has another shaft section which ts nd|aeeni orr the: fftM shaft section otithe head of the screw: to receive a spring element, fhih aping element: being gteressed when She itstenlug screw is screwed into the ioside thread against the screw carrier and a step on the seres? head so fear the module is pressed against the si^gosting element and a gap remains between the thread carrier and the screw easier it? the fastening position of the fed shsil stolen wMeh las screwed completely into the thread carrier. 1M festening serem feay he designed m a selfemfeng; m thmafeeutfesg screw so that the aferemenrioneb inside thread is the antomidlc result when hirst d|fetefepgire l^^hg stdew>

With this inventive screw connection, a "ridÄg mouhr is achieved in a certain area because of the spring element, sti this achieves m. equhiilætmh .«£’ tolerance over the gap because this is not attached to the thread carrier by ^tHesahtg'H|:Men3ng screw until it locks in plpeefemthfe pressing:sere^ e^ler t^aind. the thread earrier ns iin fee state of fee art. Wi th fers spring element pmfeiealiy ah fee t of erepees feat occur are eompemated* fehhe dt : fee same fene, because of the spring three generated by the prestressed spring dement, fee module is pressed ag&amp;inst fee supporting element A tbs screw earner with a deined and: determined: strength. Since the thread is provided only on the front shaft section, the fastening screw can always be: tightened wife the same defined torque. Because of fee spring element, fee parts involved, in pamcalar the screw carrier, are not overinfefedt thread, this screw carrier teeeises the pressing force tnade possible by the spring element. 11ms a constant pressings force is ensured even over a larger temperature range. 1¾¾ s securing erieet against loosening of fee fastening screw spring element

According to she irwerifeut, as a stop on the screw head end tor fee spring element between the front Shari secrihn asd fep screw head, a peripheral collar Is provided on the addirional shah section as s stop on fee screw head eed. h is fens possible to select the Shari area hetweeh fee peripheral collar and fee screw head to be somewhat longer aceofeingiy tor fee purpose of better accessibility :fe tue monatlng site.

To ensure a reproducible screw-in depth of the front shai seefron having fee thread into fee iusids fefead of the thread carrier, it is advantageous aocordlng to g: farther refinement of the investies to select the diameter of fee aridldfesai: shári suction -o fee larger than the outside: feúrheíífr: of :the :frdht shaft section so that the? shmbder thereby formed at the transir,os from fee front shari section fe fee additional shaft section, running around rive shari of the festening screw, rests on the thread carrier. Ifee: thread ßsfrier Is preferably designed β $ blind thread as anitKside thread.

According to fee Invention, fee screw carrier Is designed as s fastening flange having a fefeugh-epenlng to receive : fepiSbaft of the festenirsg screw.

For heifer guidance of fee aping element, which is preferably designed as a eompession spring or as a plate spring, a bushing Is shaped on fee fesferiing frange ért fee thwmgfeopefedg of fee fastening flange on fee screw head end, fee spring eiement frdiing: fedfesd Id this bushing, The diameter rffee peripheral coliaron fee shall: of the festenmg sefew on which the spring element is supported Is adapted to fee inside diameter of thid ferilirig to íaclfeafe mserhon: of fee lastenlng serese assembled with fee springdement anfefefesbf according .t« a refinement of the invention it is esiwelsfty advægageous to adjust the gap provided by adjusting tbs length of the shaft between the end of the front screw secti on os the screw hessd end an« the stop tor the spring element so that the mechanical tolerances acting in the axial direction of the fastening screw are compensated.

The invention is described in detail below on the basis of an exemplary embodiment with reference to the accompanying figures, in which:

Figure i shows a schematic sectional diagram of a detailed view1 of a module connected to as outside bousing of a ifiiling level meter of the

Figure 2 shows art enlarged detail of tbc schematic sectional diagratn according to Figure 2, and

Figure! shews a setesa%seeti<mai diagram of a vnounting device according to the prior art.

According to Figure 3 as electronic unit is connected as a module 1Ö to an outside housing 21 of a filling level meter as another modale tin a ibme^iocfced emuieetloa by means of at least one Ustemhg screw 3&amp; To do so* the module li is brought upix? the outside housing 20 tor mounting in such a way dial jhembdiliÈe 10 i* supported with a supporting edge 14 m a supporting elehseai 23 connected to the outside hopsfsg 2ft so that g isstertirsg dome 21 which is: connected to the outside boosing ftft is sitasted: in the area of a screw earrlef andrer a fastening flange 11 > m shown ip the detailed view of the section A shosvn In Figure 2,

As: Figure 2 :shows, 8 gap 5© remains between the ebd' dome 21 and: lb« screw «ander II dac to the support of the modnie 10 on the supporting element 23* where this gap is e&amp;ased of the Sparts involved, in particular the dimensional tolerances of the supporting element 23 With regard tö: its dilhehsidns, Ocpetîdhïg ou the combination sf dánoséi anal teletsnees occurring» the: gap 50 may be jariëf or smailer.

The iSastesdng dome 21 has aif inside thread 22 on the end iace as a blind threrul wbibh eomesponds to a thread 33 of the fastening screw 30. The screw carrier amU» a fastening flange 11 conn|d^:IS-^:!ni©«feift :39 isprovided with a thn>«gh--opening:: 12 to: receive: the fastening screw 3 ft.

The fastening screw 3ft has a mm% head 31 and Is guided through the through-opening 12 together wbh a screw« spring 40 as the string eiethsaif is SciTwed iiido the: fastefiing dome 21 by means of the thread 33 ammgeildn 8: fiftnt shaft section 34 of the screw« shaft 32. A plate spring may also Ire user! as ihe spring eiemeht 40.

Another shaft; section. 34 with a larger diameter in comparison wife Ihe diameter of the front shaft section 3d Is connected to the front shaft: section 34 with the thread 33 on the screw head end, so that a peripheral shoulder 3? resting on the end lace of the fastening dome 21 and the fastening screw 30 with its thread 33 is formed at the transhion between these two shaft sections 34 and 3$and is screwed compieteiy into the inside thread 22 of the fastening dome 21 as shown in Figure i, 13ie additional shaft section 35 is by a peripheral coll ar 3ft so that the screw spring 4ft is supported against this collar 3ft on the one tend sind: apinsf the gening flange 31 on She ofiter hand when the feemhg screw 30 is screwed info the fastening doati 21; For purpose of better guidance, .:¾. sleeve Í3 which is: provided ob the through-opening 12 lias an inside êmè®# such tfe the screw spring P' *$«$*· m feled onto fhe: addhiomd shall section 35 can fee Ip,seried into this sleeve 0, A Iasi shaft section «ta® diameter Is larger in comparison wish that of the addfendl Shsf section 33 Is shunted, between the additional shaft section 35tátid the screw head 3 i, fusfoad of this: last shaft sectloti äs well as the piriphetsl: collar 3d,; the screw head 31: may he used ax ä stop 1er the screw spring 40. Ûh starving the festming screw 30, the screw spring 40 genfees an increasing prestrsss: which presses the ifhstenmg Sange 11 in live direction of the fastening dome 21 and thus presses the *h#áe 10 ip #te direction against the supporting; element 23 (Figure 1) wtihoat the fastening flange 11 coming to lie direct!y on the end face of the fastening dome 21 in ft® completely sefswed-» state of?the fastening flange U and instead the gap 50 is retained.

The module 1Ö may thus slide along the screw shall in a defined area so that due to this so-called ’’Spring mount," a compensation of the tolerance of the parts involved is possible on the one hand and on the other hand a secure fastening of the Produis H) omo the outside housing 20 of the additional module, tor example, the tilling level meter here, is ensured oyer a large temperature range because of the: spring pretention of the screw spring 1Ö, and because tf the spring force acting oh the fsslehiitg flange 11:, the module 1 f ds pressed against the snjp-utta element 23, libllstóhl Sta®w: 30 can shvssys he tightened with the same defined torgne because the depth to which the thread 33 is screwed into the fastening dome 21 is limited by the shoulder 37.

The screw sgting 40 prevents the fastempg flange: I f fen being overloaded because If is acted; upon only hy the pressing force generated by the screw spring 40.

List ftf Éefe fee« i^pmeSiSfS 1 module 2 outside: housing orfeerlfesing 3 fastening dome 4 blind thread 5 screw shaft of the tfernaag s «sew fi 6 fastening screw 7 borehole S screw ettmer 9 screw head 19 module 11 screw carrier, fastening Hange

12 ifeugh-dpddlng of the screw carrier II