DE7308193U - Damping spring made of rubber or rubber-like material - Google Patents

Description

- Page 1 -

Kurt Pommwnt
EI (BtOfMT Products
GmbH & Cd

8500 Nuremberg

KonigstraOe 34 Nuremberg, 2. Motz 1973

Reg. 73 02 01

CUSHIONING SFEP5R MADE OF RUBBER OR RUBBER-LIKE MATERIAL

The invention relates to a damping spring o> * rubber or gourami-like Material, Inbosado au · zdl-dastlsohen Eleitomenn for the Suspension limitation for struts, Tdeskopdafflpfe ?, Hydraul Ik- and PneumattkxylSnder or similar aggregates that require a vaccination bonBrlgan, especially for οίο application in motor vehicles— construction and to achieve the required spring characteristics and damping has a number of renaming fropezfbnnlger constrictions.

It is known that anshkigrodom is made of rubber or gwnmi-like Material for limiting the deflection of spring struts and telescopic dampers, which are designed as hollow bodies. the Training of the αυβοτοη and inner shape is used here ouecWleßlch The purpose of this is to find a spring shape suitable for the available Roumverholmiee with the orrorderllchon characteristic curve. It is also known that springs of this type are formed at the same time as the FattonbOlge are designed to protect FalrenUlge ds elastltcho buffers are unusable if they buckle to the side due to their low wall thickness, to what those tend to have a symmetrical body with regular oxide Circumferential recesses of the interior offset against each other and solder on Zylidemtds offered almost the same wall thickness.

-Sheet 2 ^ -

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-Met »2- day. 730201 ί

Furthermore, “chain” buffers are known in which the inner recesses are closed and the cylin- derwaves formed smoothly and snippily. Dice " einschnitt · mmamn dow, that the buffer fdtenbdggUteh, like a strip of paper cut on both sides, can earth all the slow-loading Paplerglrlande. All of the buffers have internal recesses for the purpose of elastic change in the characteristic curve, or the center of the elbow in order to pull them out of the bellows. NachteilIe in all known buffers of this type I * that the Inner · weiw zyllnoriMne Monlroure during the ZutomnenarüclcaM on the KolbenfUhrungettang · with untertehiedlleher Floceprewg auegedrückt is vein of the interior cavity such selected large \ ti that "In • eltilehes Aueknlcken the puffing result tit . Furthermore, the precondition of the present situation allows in most cases only a slight

The cylindrical cavity wall of the puff has good axial buckling strength on "si" becomes, however, in the mined section through the installation when increasing usuonoiiil learn buffer is considerably narrowed. This makes the buffer dependent on both the compressed state in the Inner mine section on dl · MbenfUhrungntange with increasing Pressure avfgapreet, which greatly changes the apusal · and the buffer is quickly destroyed by increased internal stress.

The inventor has set himself the task of avoiding the "trailing edge at Dänprune" springs of the type described at the beginning without changing the line of the damping spring and to find a damping spring in which the smallest possible application of forces in the areas of the material and the most equal possible stress distribution over the cross-section takes place and thus over the whole

-Leaf 3-;

-UoH 3- Ro ₀ * 730201

Aytalboreleh dot moist cylindrical cavity «« Ine uniform fringe height change enables. DIo goring reports dot AnI logon dot buffer »on dlo KdbenfUhrungsstange and oreeailCni 09 a none prasemunv Ywwtn — τ · # ·· ■ · «« · *> »» Μιρ. and good durability because of the knot.

According to the invention, the · »is achieved by providing steaming tfodorn of the already ntthoir boKolohnoton genus of the inner cavity predominantly on the McrtorialvorlckungMlollon, dlo borrowed in a known width xwiiehon the outer and / or inner molt» shaped to the trapezoidal to the core lines. and / "EwmehnUrungen or Aumohmungon attached to the blogobo, circumferential nutarrig and mott" transversely to the length of the spring running, recessed knuckle marks such as ourwoli ", doO the inner cavity in deformationonon aunoll— over Is" and deS ehne beleslbsfsn spring of the inner Kemreum over the gssämtm predominantly sxksicR Serd «h eieichssSSg and in a geomotritch vorbetrtmmbaren Ffr: 3 rndorbar It».

Another advantageous embodiment of the dimpfuna · - Feather beds in it, so that the inner cavity is predominantly a cylindrical shape oshe fern has

Furthermore, an advantageous embodiment of the invention can be seen in that depending on the internal change in shape when the door is pressed together Spring the telluric and depth of the kink grooves can be inserted in a non-linear sequence.

The function of the inner kink grooves in the damping springs The genus referred to in more detail is fundamentally different from the known bending or stretching effects in springs with which they are auttehtleeilch a load characteristic change has been achieved. the Inner kink groove does not change the spring characteristic, but allows it to determine the internal geometry precisely in terms of the construction * without bending or tightening

-Blatt4- IUg. 73 02 01

initiate judgment.

In the following, some embodiments apply with reference to Figures 1 to 6

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It shows:

Fig. 1 shows a strut in section with the piston rod pulled out with the damping shown in section

FIG. 2 shows the strut of FIG. 1 with the piston rod pushed in with the compressed damping spring,

Fig. 3 a strut in section be! extended piston rod, but with a damping spring on the opposite side of Figure 1 has a modified cavity,

4 shows the strut of FIG. 3 with the piston rod pushed in with compressed damping spring,

Fig. 5 shows a damping spring in section with longitudinal kink grooves and

FIG. 6 shows the damping spring as a top view from FIG. 5.

According to Figure 1, the outer cylinder jacket of the damping spring 1 is trapezoidal Bending cuts 2, which, however, also have other geometric shapes. The movable piston rod 4, which is shown in the extended state, is located in the cavity of the damping spring 1. The damping elements 1 see how the helical spring 5 is supported on the plate washer 6 above. The upper fastening head 7 and the cylinder 8 of the spring strut 1 are not shown in more detail, since these parts are not essential to the invention. The cavity 3 of the damping spring 1 has, according to FIG. 1, essentially a cylindrical

-BlottS- Reg. 7302 01

see shape and has at the Materiatverdtckungsetelien 9, dt · between the outer trapezoidal bending incisions 2 of the tongue 1 remain, groove-like deepened kink grooves 10. The transverse to the longitudinal axis the damping spring 1 extending kink grooves 10 are circumferential the cylindrical inner wall 11 of the cavity 3 attached and have only a few puncture marks. The inner buckling grooves 10 can be designed differently, they have | or preferably a · NuV or wedge shape. The number and puncture depth of the kink grooves 10 is rooted in such a way that only one can be predetermined when the spring is loaded Inner shape change occurs, which can be evenly distributed over the entire inner area through the corresponding kink zone division.

FIG. 2 shows the spring 1 compressed under load, with the t-qpezartlgen bending incisions 2 are almost completely filled by the spring material and the inner cavity 3 has approached the piston rod 4, but does not touch it, and over the entire inner wall is the same distance from the piston rod. All kinks are divided by the dl · lag · of the buckling grooves 10 so that the bulge from kink zone to kink zone · in the same way * is given. A Essay «! and rubbing the Dfenpfong spring 1 on the piston rod 4 is thus avoided. Furthermore, dt «is used for the spring deformation free wercMnoe heat development over the total volume equally distributed. The kink grooves 10 do not influence the nib line due to their · low material surface markings, they only serve » Itch dam purpose, the geometry dar ktoffvorforimjng offered to balostanoen To btmmen the spring exactly constructively.

FIG. 3 shows a Dtas ^ furtgsfeder in the relieved «) state. The »points in your cavity 3 between the inner buckling grooves 10 wäiienrafTniä * Ausbuehtungon 12 «vf. The wavy bulges

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I * I

-Motto Reg. 73 0201

12 run against aar xu oiwlnw orientation under pressure niHMnBsn reu · »· jwpwi nnwm wv imMnna as · mniiauaiH« ewr Dan? in, and blowing Nniit aina optimally + rormonaoaiung wbar ohi ^ <FodarMnga on Kafbamiongo 4 out? ohna | aoocn on ■

v & j β * C 1 - *. —J— M-.L- f Sf Ci ι .. ■> - J .. 1 __! & IT ^ l ili til »a 1Λ i

the longs sum inner cavity 3 represent I.

the strleh-punkrlerte line in Figure 5 ownailaulel,

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be oranof, vroiionun smb ooiioDigo geaoMa renaen wan grooves conceivable, which represent long jerks

The figure 6 tioiit one DfswfcJshi dar figure S dar _# ^ sUJ the "riehpunKiionon kinien cm nsnirawHwnwnMimg ear MBMMn νηοιμπιπ iolgf. Dar Hohln «Mfeorolch b» noeh Figure 6 In 2 different Au · - ranrunQworinan υηίοττοιιτ · before eoore ιοιι waw? ommr njoiei vwhmw "den and only from Knlekrlllon 10 loriane" the under "" inen "wipe up the Knlekrlllen 10 nuajahauahtow hollow space. Om hollow space 3 niMRit Inn" boren ToIIf ww the sfnoh-Punktlorte Lkiio follow we the Knlekrlllon noeh "one emerging form 13, weaves the under" Great a circular load "-! (never 14 xelgt.

-MOH7- IU ₈ . 730201

2. Tiiye * w "long megelmchnltte

£ w · ■ EMUIQURI

S? 4th

5. Coil spring

O.

7th

8th cylinder

9.

10. Knickritl «!

11 · Zlinsfaritehe inner wall

13. U.

- Melt 8 -

Claims (1)

-Blatt8- IUg. 73 02 01 1.) Oqwnoder au »Gvwwrf or guowhcham material, inifaMoodcr · au · sdi-ekeHsahm E — oee for dl · Elnf · derutgd» egrenxung for shock absorbers, Toledtopdampforn, hydraulic and Fneumattlucytlndem or similar Aggatn, the wmuMBH All application in the Kraohb »and dt · xur release 4 * g« ford «t« n F «dnfc« nnllni · and ämp «in · view umlautrapatttmilgir BiwchnOrunatn aurweier _# by sp · - that the Iwisf · HoWnMiBi vorwCflMd on dan lM, dl · »Me in bdumMr W ·!» zwtsehen the ttuSeren and / WMR inner ntsist IfapexWrmlBen mi FedKinnnllnlen-Beetnftuaune bet Oniek-, to ₉ - and / ie asr spring asasbfgchie Ec. Either way, all of the details result in a number of mnkmtende and with the "right across the l.Bnjwchw of the spring variaede _y ve ^ booklet" keys such that the inner cavity in deformation tones cwftetlbor ItT, and then there is a change in the interior of the spring over the Hw bar predominantly cmlalen area gtetchnMSIg and in a geemilrlich verbetHiMsbafen Fenn veranderbor nt » 2.) DfcnprungrfetofMehAne ^ rwehl, thereby marked, that the inner cavity uses a xyltndriMh »shape rises. 3>) Dampfungireder after the AraprSehen! and 2, thereby identified / βοο in AenangigKelr aer inner rerniDnderunQ "Leaf"- »It * -Watt? - be »73Ö201 Accordion «drtJdct« r spring dta division and tfefie Kink grooves are available in a non-linear sequence. Dompfungsrodor according to claims 1 Ms 3 _#, characterized in that dt · kinked grooves are predominantly formed with a strong shape. 5.) Dampeningrfwior nor don AwBfücnon 1 bU 4, dadwch kenru »Ichn * t _# that on · KnfcJcrfllon eteon kellertigon, fochtocklgon _# semicircular armigon oo * r trapezoidal Quecwhnttt widen. 6.) OOMfungifeder nor the adaptations 1 to 3 and 5, characterized in that in the quenching area between the knuckles that run across the length of the spring, the wall of the inner cavity is wavy and the "" in the compressed state of the spring dt · Fern » a straight line that is parallel to the long ahead 7.) Dttmpfungsfot! «Nor claims 1 bb 3 and 5, thereby Konnawlchnot, dt with flat feathers dt · Kntckrlllen In boHobfger Lodge run lengthways to the inner cavity. ·.) DOmpfunysfoJor still claim 7, thereby gofcewnzolchnot, dofi dta langt vorfavfonoon KnldcrDlon curling in different eeotie Fonrcn or splndHkmtg be attachable.