SI25844A - Fixing element for a damper attachment to the washmachine tub - Google Patents
Fixing element for a damper attachment to the washmachine tub Download PDFInfo
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- SI25844A SI25844A SI201900104A SI201900104A SI25844A SI 25844 A SI25844 A SI 25844A SI 201900104 A SI201900104 A SI 201900104A SI 201900104 A SI201900104 A SI 201900104A SI 25844 A SI25844 A SI 25844A
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- fastening element
- tub
- cylinder
- nose
- elastic
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- 238000005406 washing Methods 0.000 claims abstract description 28
- 239000006096 absorbing agent Substances 0.000 claims description 23
- 230000035939 shock Effects 0.000 claims description 23
- 239000000314 lubricant Substances 0.000 claims description 15
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 230000006378 damage Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Fluid-Damping Devices (AREA)
Abstract
Pritrdilni element (1) za pritrditev blažilnika na kad pralnega stroja, pri čemer je pritrdilni element (1) tvorjen kot votel valj (15) z v bistvu konstantnim premerom, ki ima prvi konec (12), ki je konusno oblikovan in zaprt z zaobljenim vrhnjim delom, drugi konec (13) s prioblikovano prirobnico (16), elastični zaskočni nos (17), ki je razporejen v predelu valja (15) bližje prvemu koncu, vzdolžno zarezo (22), ki je razporejena nasproti elastičnemu zaskočnemu nosu in poteka vzdolž votlega valja (15), pri čemer je v področju prvega konca (12) valja (15), ki je tvorjen kot kratek konus, razporejena vsaj ena obodna izboklina (19) v obliki klina.Fastening element (1) for attaching the damper to the washing machine tub, the fastening element (1) being formed as a hollow cylinder (15) with a substantially constant diameter having a first end (12) conically shaped and closed with a rounded top part, the other end (13) with a shaped flange (16), an elastic latching nose (17) arranged in the area of the cylinder (15) closer to the first end, a longitudinal notch (22) arranged opposite the elastic latching nose and running along hollow cylinder (15), wherein at least one wedge-shaped circumferential protrusion (19) is arranged in the region of the first end (12) of the cylinder (15) formed as a short cone.
Description
Pritrdilni element za pritrditev blažilnika na kad pralnega strojaFastener for attaching the shock absorber to the bathtub of the washing machine
Predmet izumaThe subject of the invention
Predmet izuma se nanaša na pralni stroj in še zlasti na pritrdilni element, ki se uporablja za pritrditev blažilnika na kad pralnega stroja.The subject of the invention relates to a washing machine and in particular to a fastening element used for attaching a shock absorber to the tub of a washing machine.
Tehnični problemTechnical problem
Tehnični problem je zasnovati tak pritrdilni element za pritrditev blažilnika na kad pralnega stroja, ki od delavca ne bo zahteval velike ročne moči na začetku vgradnje in bo tudi zmanjšal, če ne v celoti odpravil možnost poškodb gumijastega vložka v ušesu blažilnika pralnega stroja.The technical problem is to design such a fastening element for attaching the shock absorber to the washing machine tub, which will not require much manual power from the worker at the beginning of installation and will also reduce, if not completely eliminate the possibility of damage to the rubber insert in the washing machine shock absorber ear.
Stanje tehnikeState of the art
Pralni stroj obsega ohišje, v katerem je vgrajena pralna enota, ki obsega vsaj kad in v njej vrtljivo razporejen pralni boben za sprejem perila. Kad pralne enote je z ohišjem pralnega stroja v zgornjem delu stroja povezana preko vzmeti in v spodnjem delu z blažilniki. Blažilniki prenašajo sile, ki se ustvarjajo med gibanjem omenjene pralne enote pri pranju in le-te dušijo. Hkrati tudi zmanjšujejo vibracije, da se te v čim manjši meri prenašajo na ohišje. Vsakokratni blažilnik ima na koncu, ki je namenjen za pritrditev na kad, pritrdilno uho, v katerem je razporejena gumijasta puša. Omenjeno pritrdilno uho je razporejeno med dvema montažnima rebroma, ki sta za namen pritrditve razporejena na zunanjem obodu kadi. Vsakokratno montažno rebro ima luknjo, pri čemer sta luknji obeh reber soosni. Kad pralne enote in blažilnik sta med seboj fiksirana s pritrdilnim zatičem tako, da se pritrdilni element potisne skozi luknjo prvega rebra, nato skozi uho blažilnika in še skozi luknjo drugega rebra. Pritrdilni element mora imeti take dimenzije, da dopušča nihanje blažilnika oz. njegovega ušesa okoli pritrdilnega elementa zaradi vibracij kadi, hkrati pa mora biti povezava med omenjenim elementom in blažilnikom dovolj tesna, da ne povzroča dodatnih vibracij in hrupa.The washing machine comprises a housing in which a washing unit is installed, comprising at least a bathtub and a washing drum for rotating laundry arranged in it. The tub of the washing unit is connected to the housing of the washing machine in the upper part of the machine via springs and in the lower part with dampers. The dampers transmit the forces generated during the movement of said washing unit during washing and dampen them. At the same time, they also reduce vibrations so that they are transmitted to the housing as little as possible. Each shock absorber has a mounting lug at the end, which is intended for attachment to the tub, in which a rubber bushing is arranged. Said mounting lug is arranged between two mounting ribs, which are arranged on the outer circumference of the tub for the purpose of mounting. Each mounting rib has a hole, with the holes of both ribs coaxial. The tub of the washing unit and the shock absorber are fixed to each other with a fastening pin so that the fastening element is pushed through the hole of the first rib, then through the ear of the shock absorber and through the hole of the second rib. The fastening element must have such dimensions that it allows the damper to oscillate or. its ears around the fastener due to the vibrations of the tub, and at the same time the connection between said element and the damper must be tight enough not to cause additional vibration and noise.
Za medsebojno fiksiranje obeh navedenih delov se kot pritrdilni element lahko uporablja vijak, ki se namesti skozi luknji reber in gumijasto pušo v ušesu blažilnika, pri čemer je treba znotraj gumijaste puše namestiti še kovinski vložek za preprečitev obrabe omenjene puše. Vijak se fiksira z matico. To zagotavlja relativno zanesljiv spoj montaže blažilnika na kad. Slabost takega načina je v številu sestavnih delov, kar ni ekonomično.For fixing the two parts together, a screw can be used as a fastening element, which is inserted through the hole of the ribs and a rubber bushing in the shock absorber eye, whereby a metal insert must be placed inside the rubber bushing to prevent wear of the bushing. The screw is fixed with a nut. This ensures a relatively reliable connection of the shock absorber mounting to the tub. The disadvantage of such a method is in the number of components, which is not economical.
V EP2348149 Al (Bicego et al) je kot pritrdilni element za pritrditev blažilnika na kad pralnega stroja opisan pritrdilni zatič, ki je tvorjen kot votel valjasti element, ki ima konec, s katerim se vriva v sestav, konusno oblikovan in ima na nasprotnem koncu prioblikovano prirobnico. Valjasti del zatiča ima v osni smeri vzdolžno zarezo, ki daje določeno elastičnost zatiču pri vrivanju slednjega skozi luknji reber kadi in ušesa blažilnika. Premikanje, predvsem izpad zatiča iz zmontiranega sestava v osni smeri, preprečuje elastični nos, ki je razporejen v prehodnem območju med valjastim in konusnim delom zatiča. Da je zagotovljeno fiksiranje pritrdilnega zatiča v ušesu blažilnika v radialni smeri, hkrati pa omogočeno vrivanje pritrdilnega zatiča v sestav in skozi gumijasti vložek ušesa blažilnika, ima zatič v valjastem predelu od sredine proti koničnemu delu večji premer od gumijaste puše, nameščene v ušesu blažilnika. Rahlo povečan premer še vedno omogoča vrinjenje zatiča, hkrati pa predstavlja povečanje trdnosti spoja, kar preprečuje dodatne vibracije. Slabost opisane rešitve je v tem, da se kljub majhnemu povečanju premera valjastega dela precej poveča sila, potrebna za vstavitev zatiča v sestav. Zaradi potrebnega kompromisa med še sprejemljivo potrebno velikostjo sile za montažo in funkcioniranjem spoja so zahtevane dokaj ozke izdelovalne tolerance spojnih elementov.EP2348149 A1 (Bicego et al) describes, as a fastening element for attaching a damper to a washing machine tub, a fastening pin formed as a hollow cylindrical element having a conical-shaped end with which it is inserted into the assembly and shaped at the opposite end. flange. The cylindrical part of the pin has a longitudinal notch in the axial direction, which gives a certain elasticity to the pin when inserting the latter through the hole in the ribs of the tub and the shock absorber lugs. The movement, in particular the loss of the pin from the assembled assembly in the axial direction, is prevented by the elastic nose, which is arranged in the transition area between the cylindrical and conical part of the pin. To ensure that the mounting pin is fixed in the shock absorber lug in the radial direction, while the fastening pin is inserted into the assembly and through the rubber shock absorber lug insert, the pin has a larger diameter in the cylindrical region from the rubber bushing in the shock absorber lug. The slightly increased diameter still allows the pin to be inserted, while at the same time representing an increase in joint strength, which prevents additional vibrations. The disadvantage of the described solution is that, despite a small increase in the diameter of the cylindrical part, the force required to insert the pin into the assembly is significantly increased. Due to the necessary compromise between the still acceptably required amount of force for assembly and the operation of the joint, rather narrow manufacturing tolerances of the connecting elements are required.
Poznana je tudi rešitev prijavitelja, pri kateri je pritrdilni element v bistvu valj s konusno oblikovanim prvim koncem, ki se lahko razširja tudi do četrtine celotne dolžine valja in je namenjen lažjemu vstavljanju v luknji reber in gumijasto pušo ušesa blažilnika, in nasprotnim drugim koncem, ki ima prioblikovano prirobnico, s katero pritrdilni element v končnem montiranem položaju nalega na montažno rebro in preprečuje njegov nadaljnji premik v osni smeri. V delu prvega konca valja v prehodu med ravnim in konusnim delom valja se nahaja elastični zaskočni nos, ki se med potiskanjem skozi luknji reber in gumijasto pušo umakne proti notranjosti valja. Ko je pritrdilni element v končnem položaju, zaskočni nos preprečuje izpad pritrdilnega elementa v osni smeri in s tem iz sestava rebri kadi - blažilnik. Premer valja pritrdilnega elementa je tak, da z luknjama obeh reber in gumijasto pušo tvori tesen ujem. Posledično je za njegovo vstavljanje potrebna relativno velika sila. Pri montaži mora delavec ročno vgraditi vsaj prvo tretjino pritrdilnega elementa v sestav, da se zagotovi zadostna stabilnost oziroma pravilna pozicija pritrdilnega elementa pred nadaljnjim vrinjenjem le-tega v sestav s pomočjo posebnega orodja. Pri tem mora delavec premagati silo trenja med pritrdilnim elementom in gumijasto pušo in tudi silo elastičnega zaskočnega nosu pri prehodu skozi luknjo prvega rebra in vstavitvi v gumijasto pušo. Da se zmanjša potrebna začetna sila za vstavitev in prehod pritrdilnega elementa skozi luknjo rebra in zlasti skozi gumijasto pušo, se na valj pritrdilnega elementa nanese mazalno sredstvo, ki zmanjša trenje in s tem tudi silo, potrebno za vstavitev. V primeru, da delavec pri ročnem vstavljanju pritrdilnega elementa ne vtisne dovolj globoko, le-ta zaradi nanesenega mazalnega sredstva zdrsne iz gumijaste puše in lahko tudi iz luknje prvega rebra. Delovni proces je s tem moten. Dodatna slabost pritrdilnega elementa znane vrste je tudi v tem, da na površini valja ni vedno zagotovljena zadostna količina mazalnega sredstva. V takem primeru se med zatičem in gumijasto pušo ustvari tolikšno trenje, da pride do deformacije in poškodbe gumijaste puše. Posledično se lahko med delovanjem pralnega stroja gumijasta puša pretrga in izpade iz ušesa blažilnika, ustvarjajo se dodatne vibracije in s tem hrup. V skrajnem primeru lahko pride do razpada sestava rebri - blažilnik.An applicant's solution is also known, in which the fastener is essentially a cylinder with a conically shaped first end, which can extend up to a quarter of the entire length of the cylinder and is intended to be easier to insert into the hole of the ribs and rubber bushing of the shock absorber lug. it has a shaped flange with which the fastening element rests on the mounting rib in the final mounted position and prevents its further movement in the axial direction. In the part of the first end of the cylinder in the transition between the straight and conical part of the cylinder there is an elastic latching nose, which retracts towards the inside of the cylinder during pushing through the holes of the ribs and the rubber bushing. When the fastening element is in the final position, the locking nose prevents the fastening element from falling out in the axial direction and thus from the composition of the ribs of the tub - shock absorber. The diameter of the fastener cylinder is such that it forms a tight fit with the holes of both ribs and the rubber bushing. As a result, a relatively large force is required to insert it. During assembly, the worker must manually install at least the first third of the fastener in the assembly to ensure sufficient stability or the correct position of the fastener before further inserting it into the assembly with the help of special tools. In doing so, the worker must overcome the friction force between the fastener and the rubber sleeve as well as the force of the elastic snap-in nose when passing through the hole of the first rib and inserting it into the rubber sleeve. In order to reduce the required initial force for insertion and the passage of the fastening element through the rib hole and in particular through the rubber sleeve, a lubricant is applied to the roller of the fastening element to reduce friction and thus the force required for insertion. If the worker does not push the fastener deep enough when inserting the fastener manually, it will slip out of the rubber bushing and possibly from the hole of the first rib due to the applied lubricant. The work process is disrupted by this. An additional disadvantage of the fastener of the known type is also that a sufficient amount of lubricant is not always provided on the surface of the roller. In such a case, such friction is created between the pin and the rubber bushing that the rubber bushing is deformed and damaged. As a result, during operation of the washing machine, the rubber bushing may break and fall out of the damper ear, creating additional vibrations and thus noise. In extreme cases, there may be a breakdown of the composition of the ribs - the shock absorber.
Rešitev tehničnega problemaSolution to a technical problem
Tehnični problem je rešen s pritrdilnim elementom, katerega značilnosti so podane v značilnostnem delu prvega patentnega zahtevka. Dodatne značilnosti so podane v odvisnih patentnih zahtevkih.The technical problem is solved by a fastener, the characteristics of which are given in the characteristic part of the first claim. Additional features are given in the dependent claims.
Glavna značilnost pritrdilnega elementa po izumu je v tem, da obsega obodno izboklino v obliki klina, ki je razporejena na kratkem konusnem prvem koncu valjastega dela pritrdilnega elementa. Zaradi zagozditve rebra pritrdilnega elementa v gumijasto pušo ni nevarnosti, da bi pritrdilni element zdrsnil iz sestava rebri blažilnik. Posledično ni več potrebe, da delavec ročno vrine pritrdilni element do vsaj ene tretjine dolžine v sestav oziroma daleč v gumijasto pušo. S tem se bistveno zmanjša potrebna sila vrivanja, kar prispeva k izboljšanju delovnih pogojev in zmanjšanju možnih delovnih poškodb delavca.The main feature of the fastening element according to the invention is that it comprises a circumferential wedge-shaped protrusion arranged at the short conical first end of the cylindrical part of the fastening element. Due to the jamming of the fastening element rib in the rubber bushing, there is no danger of the fastening element slipping out of the shock absorber rib assembly. As a result, it is no longer necessary for the worker to manually insert the fastener up to at least one third of the length into the assembly or far into the rubber bushing. This significantly reduces the required intrusion force, which contributes to the improvement of working conditions and the reduction of possible work injuries to the worker.
Nadaljnja prednost pritrdilnega elementa po izumu je v tem, da obsega zalogovnik za mazalno sredstvo, ki ga tvori obodna izboklina in del plašča konusnega dela valja pritrdilnega elementa. Zalogovnik je dovolj velik, da sprejme tolikšno količino mazalnega sredstva, da se pri vrinjenju pritrdilnega elementa oziroma montaži namaže celotna površina valja pritrdilnega elementa. Tako je zmanjšan koeficient trenja med pritrdilnim elementom in gumijasto pušo. S tem se pri montaži pritrdilnega elementa in tudi pri delovanju pralnega stroja prepeči deformacija in poškodba gumijaste puše zaradi prekomernega trenja.A further advantage of the fastening element according to the invention is that it comprises a lubricant reservoir formed by a circumferential protrusion and a part of the shell of the conical part of the cylinder of the fastening element. The hopper is large enough to accommodate such a large amount of lubricant that the entire surface of the fastener cylinder is lubricated during insertion of the fastener or assembly. This reduces the coefficient of friction between the fastener and the rubber bushing. This prevents deformation and damage to the rubber bushing due to excessive friction during the installation of the fastening element and also during the operation of the washing machine.
Izdelava pritrdilnega elementa po izumu je enostavna, ne zahteva dodatnih sestavnih delov niti dodatnega orodja pri montaži. Celo nasprotno, montaža je enostavnejša.The construction of the fastening element according to the invention is simple, it does not require additional components or additional tools during assembly. On the contrary, installation is easier.
Pritrdilni element po izumu bo v nadaljevanju podrobneje opisan z izvedbenim primerom, ki ni omejujoč, in skicami, ki prikazujejo:The fastener according to the invention will be described in more detail below with a non-limiting embodiment and sketches showing:
Sl. 1 shematski prikaz pralnega strojaSl. 1 is a schematic representation of a washing machine
Sl. 2 eksplozijski pogled sestava kad - blažilnik pralnega strojaSl. 2 explosion view composition of the bathtub - shock absorber of the washing machine
Sl. 3 pritrdilni zatič, znano stanje tehnikeSl. 3 mounting pin, prior art
Sl. 4 pritrdilni element po izumuSl. 4 a fastening element according to the invention
Sl. 5 pritrdilni element po izumu, vzdolžni prerez.Sl. 5 is a longitudinal section of a fastener according to the invention.
Pralni stroj obsega ohišje 2, v katerem je vgrajena pralna enota 3, ki obsega vsaj kad 4 in v njej vrtljivo razporejen pralni boben 5 za sprejem perila. Kad 4 pralne enote 3 je z ohišjem 2 pralnega stroja v zgornjem delu stroja povezana preko vzmeti 6 in v spodnjem delu preko blažilnikov 7. Vsakokratni blažilnik 7 ima na koncu, ki je bližji kadi 4 in namenjen za pritrditev na kad 4, pritrdilno uho 8, v katerem je razporejena gumijasta puša 9. Pritrdilno uho 8 blažilnika je vstavljeno med dvema montažnima rebroma 10, ki sta za namen pritrditve razporejena na zunanjem obodu kadi 4. Vsako montažno rebro 10 ima skoznjo luknjo 11. Kad 4 pralne enote 3 in blažilnik 7 sta med seboj fiksirana s pritrdilnim elementom 1 tako, da se pritrdilni element 1 potisne skozi luknjo 11 prvega rebra 10, nato skozi pritrdilno uho 8 z gumijasto pušo 9 in še skozi luknjo 11 drugega rebra 10.The washing machine comprises a housing 2, in which a washing unit 3 is installed, comprising at least a tub 4 and a washing drum 5 for receiving laundry rotatably arranged in it. The tub 4 of the washing unit 3 is connected to the housing 2 of the washing machine in the upper part of the machine via a spring 6 and in the lower part via shock absorbers 7. Each damper 7 has a fastening lug 8 at the end closer to the tub 4 and intended for attachment to the tub 4. , in which a rubber bushing 9 is arranged. The shock absorber mounting lug 8 is inserted between two mounting ribs 10, which are arranged on the outer circumference of the tub 4 for fastening. Each mounting rib 10 has a through hole 11. The tub 4 of the washing unit 3 and the damper 7 are fixed to each other by the fastening element 1 so that the fastening element 1 is pushed through the hole 11 of the first rib 10, then through the fastening lug 8 with a rubber bushing 9 and further through the hole 11 of the second rib 10.
Pritrdilni element 1 je v bistvu votel valj 15 s prvim koncem 12, ki je konusno oblikovan in namenjen vstavljanju v luknji 11 reber 10 in gumijasto pušo 9 pritrdilnega ušesa blažilnika, in z drugim koncem 13 s prioblikovano prirobnico 16, s katero pritrdilni element 1 nalega na montažno rebro 10 in preprečuje nadaljnji premik pritrdilnega elementa v osni smeri. V predelu valja bližje prvemu koncu 12 valja ima pritrdilni element 1 elastični zaskočni nos 17, ki se med potiskanjem pritrdilnega elementa 1 skozi luknji 11 reber in gumijasto pušo 9 umakne proti notranjosti valja 15. Vzdolž votlega valja 15 nasproti elastičnemu zaskočnemu nosu 17 poteka vzdolžna zareza 22, zaradi katere pritrdilni element 1 pri vrinjenju v sestav deluje kot elastično telo. Premer valja 15 pritrdilnega elementa 1 je tak, da z luknjama 11 obeh reber 10 in gumijastim vložkom 9 tvori tesni ujem. Prvi konec 12 valja 15 ima obliko kratkega konusa 18, ki je zaprt z zaobljenim vrhnjim delom ali z vrhom v obliki v bistvu polkrogle. V področju kratkega konusa 18 je razporejena vsaj ena obodna izboklina 19 v obliki klina. V primeru nezadovoljive vstavitve pritrdilnega elementa 1 lahko pride do zdrsa pritrdilnega elementa 1 iz gumijaste puše 9. V takem primeru obodna izboklina 19 deluje kot klin, ki se zagozdi v gumijasto pušo 9 in s tem prepreči zdrs pritrdilnega elementa 1 kljub mazalnemu sredstvu. Ker se obodna izboklina 19 nahaja na konusnem prvem koncu 12, ki se prvi vriva v gumijasto pušoThe fastening element 1 is essentially a hollow cylinder 15 with a first end 12 conically shaped for insertion in the hole 11 of the ribs 10 and a rubber sleeve 9 of the shock absorber mounting lug, and with a second end 13 with a shaped flange 16 with which the fastening element 1 rests to the mounting rib 10 and prevents further movement of the fastening element in the axial direction. In the area of the roller closer to the first end 12 of the roller, the fastening element 1 has an elastic latching nose 17, which retracts towards the inside of the roller 15 as the fastening element 1 is pushed through the holes 11 and the rubber sleeve 9. 22, due to which the fastening element 1 acts as an elastic body when inserted into the assembly. The diameter of the cylinder 15 of the fastening element 1 is such that it forms a tight fit with the holes 11 of both ribs 10 and the rubber insert 9. The first end 12 of the cylinder 15 has the shape of a short cone 18 which is closed by a rounded top or by a substantially hemispherical top. At least one circumferential wedge-shaped protrusion 19 is arranged in the area of the short cone 18. In case of unsatisfactory insertion of the fastening element 1, the fastening element 1 may slip out of the rubber bushing 9. In this case, the circumferential protrusion 19 acts as a wedge which gets stuck in the rubber bushing 9 and thus prevents the fastening element 1 from slipping despite the lubricant. Since the circumferential protrusion 19 is located at the conical first end 12, which is first inserted into the rubber bushing
9, je stabilnost pritrdilnega elementa 1 v sestavu dosežena že pri minimalnem vrivanju pritrdilnega elementa 1 v gumijasto pušo 9. Zato je lahko dolžina konusnega prvega dela 12 v osni smeri bistveno krajša. Dolžina kratkega konusa 18 je tolikšna, da se elastični nos 17, ki po dokončni vstavitvi pritrdilnega elementa 1 v sklop preprečuje osni premik pritrdilnega elementa 11, nahaja v ravnem delu valja 15.9, the stability of the fastening element 1 in the assembly is achieved already with minimal insertion of the fastening element 1 into the rubber sleeve 9. Therefore, the length of the conical first part 12 in the axial direction can be significantly shorter. The length of the short cone 18 is such that the elastic nose 17, which prevents the axial movement of the fastening element 11 after the final insertion of the fastening element into the assembly, is located in the flat part of the cylinder 15.
Obodna izboklina 19, kije razporejena v področju kratkega konusa 18, s svojim enim bokom, ki gleda v smer nasprotni smeri vrivanja, skupaj z delom plašča, sosednjim obodni izboklini 19, kratkega konusa 18, tvori zalogovnik 20 mazalnega sredstva. Zalogovnik 20 mazalnega sredstva se pred vstavitvijo in vrivanjem pritrdilnega elementa 1 napolni z mazalnim sredstvom. Zalogovnik 20 je dovolj velik, da sprejme tolikšno količino mazalnega sredstva, da se pri vrinjenju pritrdilnega elementa 1 oziroma montaži namaže celotna površina valja pritrdilnega elementa. Mazalno sredstvo se nanese tudi v žleb 21, ki je tvorjen v elastičnem nosu 17 v osni smeri. Ko se pritrdilni element 1 vriva v luknjo 11 in še zlasti v gumijasto pušo 9 pritrdilnega ušesa 8 blažilnika, se mazalno sredstvo, ki je shranjeno v zalogovniku 20, enakomerno porazdeli po celotnem valju 15 pritrdilnega elementa 1. Mazalno sredstvo, ki se nahaja v žlebu 21 elastičnega nosu 17, se pri prehodu skozi prvo luknjo 10 in gumijasto pušo 9 prenaša na slednjo in znatno zmanjšuje koeficient trenja med pritrdilnim zatičem 1 in gumijasto pušo 9. Posledično ne pride do deformacij gume in s tem ne do njenega pretrganja.The circumferential protrusion 19, which is arranged in the area of the short cone 18, forms a lubricant reservoir 20 with its one side facing the opposite direction of intrusion, together with a part of the jacket adjacent to the circumferential protrusion 19 of the short cone 18. The lubricant reservoir 20 is filled with lubricant before the fastening element 1 is inserted and screwed in. The hopper 20 is large enough to accommodate a sufficient amount of lubricant to lubricate the entire surface of the fastener cylinder during insertion of the fastening element 1 or assembly. The lubricant is also applied to the groove 21 formed in the elastic nose 17 in the axial direction. When the fastening element 1 is inserted into the hole 11 and in particular into the rubber sleeve 9 of the fastening lug 8 of the shock absorber, the lubricant stored in the hopper 20 is evenly distributed over the entire cylinder 15 of the fastening element 1. The lubricant located in the groove 21 of the elastic nose 17, when passing through the first hole 10 and the rubber bushing 9 is transferred to the latter and significantly reduces the coefficient of friction between the mounting pin 1 and the rubber bushing 9. As a result, no deformation of the rubber and thus no rupture.
Dodatna prednost žleba 21 v elastičnem nosu 17 je v tem, da se zaradi žleba zmanjša prečni presek osnega elastičnega odseka elastičnega nosu 17, kar prispeva k večji elastični trdnosti nosu 17 in zvišanju meje plastične deformacije. S tem je preprečena plastična deformacija elastičnega nosu 17 v primeru njegove pogreznitve. Elastični nos 17 se tako po dokončnem vrinjenju pritrdilnega elementa 1 v sestav vedno vrne v svojo začetno lego in preprečuje premik pritrdilnega elementa 1 v osni smeri nazaj proti vhodu.An additional advantage of the groove 21 in the elastic nose 17 is that the groove reduces the cross-section of the axial elastic section of the elastic nose 17, which contributes to greater elastic strength of the nose 17 and increases the plastic deformation limit. This prevents plastic deformation of the elastic nose 17 in the event of its sinking. The elastic nose 17 thus always returns to its initial position after the final insertion of the fastening element 1 into the assembly and prevents the movement of the fastening element 1 in the axial direction back towards the inlet.
Claims (5)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI201900104A SI25844A (en) | 2019-05-27 | 2019-05-27 | Fixing element for a damper attachment to the washmachine tub |
| PCT/CN2020/085422 WO2020238466A1 (en) | 2019-05-27 | 2020-04-17 | Washing machine and fastener applied to washing machine |
| CN202080027083.7A CN113677845B (en) | 2019-05-27 | 2020-04-17 | Washing machine and fastener applied to same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI201900104A SI25844A (en) | 2019-05-27 | 2019-05-27 | Fixing element for a damper attachment to the washmachine tub |
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| Publication Number | Publication Date |
|---|---|
| SI25844A true SI25844A (en) | 2020-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SI201900104A SI25844A (en) | 2019-05-27 | 2019-05-27 | Fixing element for a damper attachment to the washmachine tub |
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| Country | Link |
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| CN (1) | CN113677845B (en) |
| SI (1) | SI25844A (en) |
| WO (1) | WO2020238466A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2268798Y (en) * | 1995-04-28 | 1997-11-26 | 戴姆勒机械制造两合公司 | Pin for connecting construction components |
| IT241574Y1 (en) * | 1996-11-18 | 2001-05-09 | R & D S Srl | SHOCK ABSORBER FOR WASHING MACHINES, IN PARTICULAR HOUSEHOLD WASHING MACHINES |
| JP3061784B2 (en) * | 1997-12-11 | 2000-07-10 | エルジー電子株式会社 | Leveling device for washing machine |
| KR101133607B1 (en) * | 2004-02-25 | 2012-04-10 | 엘지전자 주식회사 | Damper pin of Drum Washing Machine |
| CN1730784A (en) * | 2004-08-06 | 2006-02-08 | 乐金电子(天津)电器有限公司 | Dual vibration damper for washing machine |
| GB2419168B (en) * | 2004-10-18 | 2008-08-20 | Airbus Uk Ltd | A Fastener assembly |
| CN1776079A (en) * | 2004-11-17 | 2006-05-24 | 乐金电子(天津)电器有限公司 | Absorber assembling structure for washing machine |
| WO2007013021A1 (en) * | 2005-07-25 | 2007-02-01 | Arcelik Anonim Sirketi | A washer/dryer |
| TR200702472A2 (en) * | 2007-04-12 | 2008-11-21 | Vestel Beyaz E�Ya Sanay� Ve T�Caret Anon�M ��Rket�@ | Shock Absorber Sleeve and Pin |
| CN201486980U (en) * | 2009-06-27 | 2010-05-26 | 赵玉凤 | Fixing pin capable of automatically locking |
| US9610904B2 (en) * | 2012-08-13 | 2017-04-04 | Ford Global Technologies, Llc | Push pin with over-travel stop |
| EP2848723B1 (en) * | 2013-09-17 | 2021-02-24 | Electrolux Appliances Aktiebolag | Washing laundry machine with damper elements |
| CN105088617A (en) * | 2014-04-17 | 2015-11-25 | 无锡小天鹅股份有限公司 | Roller washing machine |
| US9683591B2 (en) * | 2015-05-27 | 2017-06-20 | The Monadnock Company | Plastic lining fasteners |
| CN107012656B (en) * | 2016-01-28 | 2023-06-30 | 无锡小天鹅电器有限公司 | Movable drum washing machine with clothes taking and putting opening |
| CN108103732B (en) * | 2018-01-18 | 2020-10-23 | 无锡小天鹅电器有限公司 | Shock absorption assembly, washing machine and assembling method of washing machine |
| CN208252544U (en) * | 2018-05-23 | 2018-12-18 | 江西晟金实业有限公司 | A kind of improvement pin |
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2019
- 2019-05-27 SI SI201900104A patent/SI25844A/en active IP Right Grant
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2020
- 2020-04-17 WO PCT/CN2020/085422 patent/WO2020238466A1/en active Application Filing
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| WO2020238466A1 (en) | 2020-12-03 |
| CN113677845A (en) | 2021-11-19 |
| CN113677845B (en) | 2024-06-21 |
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