RS59985B1

RS59985B1 - Improved lift for motor vehicles

Info

Publication number: RS59985B1
Application number: RS20200095A
Authority: RS
Inventors: Orietta Rossato
Original assignee: O Me R Spa
Priority date: 2015-08-03
Filing date: 2016-08-01
Publication date: 2020-03-31
Also published as: WO2017021863A1; HUE047367T2; SI3331808T1; EP3331808B1; ES2770339T3; DK3331808T3; HRP20200116T1; PL3331808T3; EP3331808A1; PT3331808T; ITUB20152757A1

Description

Opis Description

[0001] Predmetni pronalazak odnosi se na poboljšanu dizalicu za podizanje motornih vozila. [0001] The present invention relates to an improved crane for lifting motor vehicles.

[0002] Poznate su dizalice u obliku paralelograma i pantografa koja sadrže par uzdužnih elemenata koji se nalaze na podu, par horizontalnih gazišta koja se mogu razlikovati u odnosu na uzdužne elemente za podizanje vozila koja su postavljena na njih, a uređaji za podizanje u podignuti položaji, postavljeni su u obliku paralelograma ili pantografa sa podlogom i uzdužnim članovima, kojima upravljaju uglavnom hidraulični sistemi za podizanje podloge. [0002] Cranes in the form of parallelograms and pantographs are known, which contain a pair of longitudinal elements located on the floor, a pair of horizontal treads that can be distinguished in relation to the longitudinal elements for lifting vehicles that are placed on them, and devices for lifting in raised positions, placed in the form of parallelograms or pantographs with a base and longitudinal members, which are managed mainly by hydraulic systems for lifting the base.

[0003] Ove poznate vrste dizalica su u širokoj upotrebi u osnovi radi jednostavnosti ugradnje, robusnosti i radne pouzdanosti. [0003] These known types of cranes are in wide use basically due to the simplicity of installation, robustness and operational reliability.

[0004] Konkretno, poznate dizalice uključuju one u kojima je svaka podloga opremljena jednim uređajem za podizanje. Na primer, liftovi ovog tipa su opisana na primer u JP H11130383 A, DE 29916 254 U1, CN 201442 827U, VO 2012/150770, CN 103964 338 A i CN 2786 20 086 I. U ovim liftovima podloge su posebno kratke (oko 2 metra), što je potrebno da bi se omogućilo njihovo uravnoteženo podizanje pomoću jednog uređaja. Neizbežno je da ove dizalice ne podižu točkove vozila, već samo njegovo telo. [0004] In particular, known cranes include those in which each platform is equipped with one lifting device. For example, elevators of this type are described for example in JP H11130383 A, DE 29916 254 U1, CN 201442 827U, VO 2012/150770, CN 103964 338 A and CN 2786 20 086 I. In these elevators, the platforms are particularly short (about 2 meters), which is necessary to enable their balanced lifting with one device. It is inevitable that these jacks do not lift the wheels of the vehicle, but only its body.

[0005] Pored toga, poznate dizala vozila, kao što je otkriveno u VO 2011/032872, koja otkriva preambulu iz zahteva 1, obuhvataju one u kojima svaki uređaj za podizanje sadrži: [0005] In addition, known vehicle lifts, as disclosed in VO 2011/032872, which discloses the preamble of claim 1, include those in which each lifting device comprises:

- prvi i drugi glavni krak jednake su dužine međusobno su povezani zglobom na jednom kraju, a na drugom kraju omaju takođe zglobnu vezu, odnosno sa podom i sa podlogom za dve vertikalno postavljene poprečne ose, - the first and second main arms are of the same length and are connected to each other by a joint at one end, and at the other end they also have a joint connection, i.e. with the floor and with the base for two vertically placed transverse axes,

- prvi pomoćni krak je zakačen na drugi pomoćni krak I takođe na prvi glavni krak, - drugi pomoćni krak pričvršćeni na prvi pomoćni krak na jednom kraju, a na drugom kraju na drugi glavni krak na njegovom srednjem delu, a klizno povezan na drugom kraju duž vođice pomenutog drugog glavnog kraka sa odgovarajućom podlogom, - the first auxiliary arm is attached to the second auxiliary arm and also to the first main arm, - the second auxiliary arm is attached to the first auxiliary arm at one end, and at the other end to the second main arm at its middle part, and slidingly connected at the other end along the guide of the said second main arm with a suitable base,

- pokretač je smešten između glavnih krakova i pomoćnih krakova ili pomoćnih krakova. - the actuator is located between the main arms and the auxiliary arms or auxiliary arms.

[0006] Opšte rečeno, podloge ovih poznatih dizalica su oblikovane sa obrnutim U presekom tako da se, kada je dizalica potpuno spuštena, formiraju sa podom, ili uzdužnim elementima koji su postavljenim na pod, sa uzdužnim razmacima namijenjenim za smeštaj preklopljenog podizača – uređaja za podizanje. Međutim, strukturalni, funkcionalni i radni zahtevi dizanja vozila znače da se ukupne dimenzije uređaja za podizanje ne mogu smanjiti iznad određenih vrednosti, tako da minimalna visina spuštenog dizanja ne može biti nikako manja od 200 mm, što može biti nespojivo sa određenim zahtevima korisnika. [0006] Generally speaking, the bases of these known cranes are shaped with an inverted U-section so that, when the crane is fully lowered, they form with the floor, or longitudinal elements that are placed on the floor, with longitudinal spaces intended to accommodate the folded lifter - the lifting device. However, the structural, functional and operational requirements of vehicle lifting mean that the overall dimensions of the lifting device cannot be reduced beyond certain values, so the minimum height of the lowered lift can never be less than 200mm, which may be incompatible with certain user requirements.

[0007] Da bi se otklonio ili bar smanjio ovaj nedostatak, predložene su takozvane "potonule" dizalice, koje su spuštene niže na dnu uzdužnih šupljina koje su smeštene u podu, a predviđene su za smeštaj podloge i sklopljenih uređaja za podizanje kada je dizalica u spuštenom položaju. Rešenje je sigurno rešilo problem minimalnih ukupnih dimenzija dizalice, ali je zahtevalo komplikovan rad preuređivanja prostora u kome se dizalica mora postavljati, a istovremeno je ograničilo položaj dizalice u samoj prostoriji. [0007] In order to eliminate or at least reduce this drawback, so-called "sunk" cranes have been proposed, which are lowered lower at the bottom of the longitudinal cavities that are located in the floor, and are designed to accommodate the base and assembled lifting devices when the crane is in the lowered position. The solution certainly solved the problem of minimum overall dimensions of the crane, but it required complicated work of rearranging the space in which the crane must be placed, and at the same time it limited the position of the crane in the room itself.

[0008] Cilj pronalaska je da se obezbedi dizalica za vozila koja, kada je u spuštenom stanju, ima posebno malu visinu, i u svakom slučaju manja je od uobičajenih dizalica. [0008] The aim of the invention is to provide a jack for vehicles which, when in the lowered state, has a particularly low height, and in any case is smaller than conventional jacks.

[0009] Sledeći cilj pronalaska je stvaranje dizalice vozila koje ima posebno malu visinu, čak i ako je opremljena pomoćnim uređajem za podizanje za svaku podlogu. [0009] Another object of the invention is to create a vehicle jack that has a particularly low height, even if it is equipped with an auxiliary lifting device for each base.

[0010] Sledeći cilj pronalaska je da se obezbedi dizalica vozila koja ne zahteva posebne instalacione radove, a istovremeno ni na koji način ne ograničava položaj instalacije dizalice u prostoriji za koju je namenjena. [0010] The next goal of the invention is to provide a vehicle crane that does not require special installation work, and at the same time does not in any way limit the installation position of the crane in the room for which it is intended.

[0011] Sledeći cilj pronalaska je obezbediti posebno stabilno dizanje vozila, kao što je posebna zaštita od deformacija vozila i usklađivanje položaja vozila kako bi se izbeglo unutrašnje preopterećenja različitih elemenata u konstrukciji dizalice. [0011] The next goal of the invention is to provide a particularly stable lifting of the vehicle, such as a special protection against deformation of the vehicle and matching the position of the vehicle in order to avoid internal overloading of various elements in the construction of the crane.

[0012] Sledeći cilj ovog pronalaska je da se obezbedi dizalica za vozila koja može pretpostaviti kako može doći do deformisanja geometrije vozila i / ili na vreme apsorbovati neuravnoteženo opterećenje, a da se istovremeno obezbedi njegova stabilnost u uslovima na većim visinama i bez stvaranja strukturnih preopterećenja u konstrukciji vozila. [0012] The next objective of this invention is to provide a crane for vehicles that can assume that the geometry of the vehicle can be deformed and/or absorb an unbalanced load in time, and at the same time ensure its stability in conditions at higher heights and without creating structural overloads in the vehicle structure.

[0013] Sledeći cilj pronalaska je obezbediti dizalicu koja je lako dostupna,u uzdužnom i poprečnom pravcu, operatorima koji moraju raditi ispod podignute dizalice. [0013] Another object of the invention is to provide a crane that is easily accessible, in the longitudinal and transverse direction, to operators who have to work under the raised crane.

[0014] Drugi cilj ovog pronalaska je stvaranje dizalice sa dva uzdužna dela koji nisu međusobno spojeni poprečnim mehaničkim vezama. [0014] Another goal of this invention is to create a crane with two longitudinal parts that are not connected to each other by transverse mechanical connections.

[0015] Sledeći cilj pronalaska je da se obezbedi dizalica sa alternativnim karakteristikama, kako u konstrukcijskom tako i u funkcionalnom pogledu, u poređenju sa tradicionalnim dizalicama. [0015] A further aim of the invention is to provide a crane with alternative characteristics, both in terms of construction and functionality, compared to traditional cranes.

[0016] Sledeći cilj pronalaska je da se obezbedi jednostavna, brza i jeftina konstrukcija. [0016] The next aim of the invention is to provide a simple, fast and cheap construction.

[0017] Prema ciljevima koji treba da se obezbede,u okviru pronalaska, ovi se ciljevi ostvaruju dizanjem vozila sa karakteristikama koje su naznačene u zahtevu 1. [0017] According to the objectives to be provided, within the scope of the invention, these objectives are achieved by raising the vehicle with the characteristics indicated in claim 1.

[0018] Predmetni pronalazak je u daljem tekstu razjašnjen u smislu njegove poželjne realizacije, koja je opisana neograničavajućim primerom u odnosu na priložene crteže, na kojima: [0018] The subject invention is further explained in terms of its preferred embodiment, which is described by a non-limiting example in relation to the attached drawings, in which:

Slika 1 je perspektivni pogled na dizalicu vozila prema ovom predmetnom pronalasku u podignutom položaju, Figure 1 is a perspective view of a vehicle jack according to the present invention in a raised position,

Slika 2 je pogled odozgo na komponentu dizalice sa Slike 1, Figure 2 is a top view of the crane component of Figure 1,

Slika 3 je bočni pogled na dizalicu za vozila prema ovom predmetnompronalasku u spuštenom položaju, Figure 3 is a side view of a vehicle jack according to the present invention in a lowered position,

Slika 4 prikazuje dizalicu za vozila na početku podizanja, Figure 4 shows the vehicle jack at the beginning of the lift,

Slika 5 prikazuje dizalicu za vozila tokom podizanja u tački koja je sledeća u odnosu na položaj sa Slike 4, Figure 5 shows the vehicle jack during lifting at a point next to the position of Figure 4,

Slika 6 prikazuje dizalicu za vozilo u podignutom položaju, Figure 6 shows the vehicle jack in the raised position,

Slika 7 prikazuje uvećani detalj koji je prikazan na Slici 3, Figure 7 shows an enlarged detail shown in Figure 3,

Slika 8 prikazuje uvećani detalj koji je prikazan na Slici 4, Figure 8 shows an enlarged detail shown in Figure 4,

Slika 9 prikazuje uvećani detalj koji je prikazan na Slici 5, Figure 9 shows an enlarged detail shown in Figure 5,

Slika 10 prikazuje uvećani detalj koji je prikazan na Slici 6, Figure 10 shows the enlarged detail shown in Figure 6,

[0019] Kao što se može videti na slikama, dizalica vozila 1 prema predmetnom pronalasku sadrži uglavnom par podloga koje se mogu podizati u odnosu na pod 3 podizanjem pomoću uređaja koji je označeni u celini sa brojem 4. [0019] As can be seen in the figures, the vehicle jack 1 according to the present invention mainly comprises a pair of bases which can be raised with respect to the floor 3 by lifting by means of a device designated as a whole by the number 4.

[0020] Posebno, svaki uređaj za podizanje 4 sadrži prvi glavni krak 6, koji je na svom gornjem kraju pričvršćen preko prve osovine 7 na drugi glavni krak 8, a na njegovom donjem kraju je pričvršćen na šarnir 12 sa šarkama, pričvršćen na pod 3 prostorije gde je dizalica instalirana. [0020] In particular, each lifting device 4 contains a first main arm 6, which is attached at its upper end via a first shaft 7 to a second main arm 8, and at its lower end is attached to a hinge 12 with hinges, attached to the floor 3 of the room where the crane is installed.

[0021] Drugi glavni krak 8 ima istu dužinu kao prvi glavni krak 6 i, kao što je rečeno, njegov donji kraj je zakačen za prvi glavni krak a gornji kraj zakačen na podlogu 2. [0021] The second main arm 8 has the same length as the first main arm 6 and, as mentioned, its lower end is attached to the first main arm and its upper end is attached to the base 2.

[0022] Svaki uređaj za podizanje 4 takođe sadrži prvi pomoćni krak 20 koji je na svom donjem kraju opremljen valjcima ili kliznim blokovima 22, koji se mogu klizati po podu 3 ili po osnovnom uzdužnom članu 23, koji je pričvršćen na pod 3, a na njegovom gornjem delu kraj je pričvršćen na drugi pomoćni krak 24 preko druge osovinice 25. Poželjno je da valjci ili klizni blokovi 22 budu klizni duž vođica, koje nisu prikazane, koje su prikačene na pod 3 ili pričvršćene na osnovni uzdužni član 23. [0022] Each lifting device 4 also contains a first auxiliary arm 20 which is equipped at its lower end with rollers or sliding blocks 22, which can slide on the floor 3 or on the basic longitudinal member 23, which is attached to the floor 3, and on its upper part the end is attached to the second auxiliary arm 24 via the second pin 25. It is preferable that the rollers or sliding blocks 22 are sliding along guides, not shown, which are attached to the floor 3 or attached to the main longitudinal member 23.

[0023] Pored toga, prvi pomoćni krak 20 je pričvršćen na prvi glavni krak 6 preko treće osovine 26 koja je smeštena između dva kraja kraka 20, u položaju tako da je udaljenost između ose rotacije valjka 22 ili zglobnog kliznog bloka, ako zglobni klizni blok zameni valjak, a osa treće osovinice 26 je jednaka rastojanju između ovog poslednjeg i ose nosača šarke 12. [0023] In addition, the first auxiliary arm 20 is attached to the first main arm 6 via the third axis 26 which is placed between the two ends of the arm 20, in a position so that the distance between the axis of rotation of the roller 22 or the articulated sliding block, if the articulated sliding block replaces the roller, and the axis of the third axis 26 is equal to the distance between the latter and the axis of the hinge support 12.

[0024] Drugi pomoćni krak 24 ima svoj donji kraj, kao što je već rečeno, zakačen za prvi pomoćni krak 20 oko druge osovine 25, a gornji kraj zakačen za drugi glavni krak 8, preko četvrte osovine 28, smešten između dva kraja. [0024] The second auxiliary arm 24 has its lower end, as already mentioned, hooked to the first auxiliary arm 20 around the second shaft 25, and the upper end hooked to the second main arm 8, via the fourth shaft 28, located between the two ends.

[0025] Na odgovarajući način, oni delovi glavnog kraka 6, 8 i pomoćnih krakova 20, 24 koji su zglobno spojeni zajedno, određuju zglobni paralelogram. Na poseban način je rastojanje između osa četvrte osovine 28 i ose prve osovine 7 jednako rastojanju između ose treće osovine 26 i ose druge osovine 25. [0025] Appropriately, those parts of the main arm 6, 8 and the auxiliary arms 20, 24 which are hinged together define the hinged parallelogram. In a special way, the distance between the axis of the fourth axis 28 and the axis of the first axis 7 is equal to the distance between the axis of the third axis 26 and the axis of the second axis 25.

[0026] Svaki uređaj za podizanje 4 takođe sadrži pokretač 30 koji ima jedan kraj zglobno vezan oko pete osovinice 31 za prvi glavni krak 6, u neposrednoj blizini poda 3. Poželjno je da kraj pokretača 30 bude pričvršćen na ploču 33 koja je zglobno vezana na konzolu šarke 12. [0026] Each lifting device 4 also contains an actuator 30 which has one end hinged around the fifth pin 31 to the first main arm 6, in the immediate vicinity of the floor 3. Preferably, the end of the actuator 30 is attached to a plate 33 which is hinged to the hinge bracket 12.

[0027] Drugi kraj pokretača 30 je zakačen na polugu 40 oko šeste osovinice 42. [0027] The other end of the actuator 30 is attached to the lever 40 around the sixth pin 42.

[0028] Ručica 40 je takođe pričvršćena za drugi glavni krak 8 preko sedme osovinice 44 i, osim toga, na suprotnom kraju od one šeste osovine 42, opremljena je kliznim valjcima 45. Oni mogu biti povoljno postavljeni na nekoliko osovina, tako da se formira višestruka podloga tokom kretanja. [0028] The arm 40 is also attached to the second main arm 8 via the seventh axle 44 and, in addition, at the opposite end of the sixth axle 42, it is equipped with sliding rollers 45. They can be advantageously placed on several axles, so that a multiple surface is formed during movement.

[0029] Na odgovarajući način, da bi se optimizirao sistem poluga, poluga 40 ima takav oblik tako da je osa sedme osovine 44 smeštena izvan ravni koja sadrži osu šeste osovine 42 i osu valjaka 45. [0029] Appropriately, in order to optimize the lever system, the lever 40 has such a shape that the axis of the seventh axis 44 is located outside the plane containing the axis of the sixth axis 42 and the axis of the rollers 45.

[0030] Sedma osovina 44 je smeštena između četvrte osovinice 28 i kraja drugog glavnog kraka 8 koji je pričvršćen za podlogu 2 [0030] The seventh shaft 44 is located between the fourth shaft 28 and the end of the second main arm 8 which is attached to the base 2

[0031]Poželjno, pokretač 30 je hidraulička cilindarsko-klipna jedinica koja sadrži cilindar 32, koji je zglobno vezan za prvi glavni krak 6 pomoću pete osovinice 31, i klipna šipka 34, je zglobno vezana za polugu 40 preko šeste osovinice 42. [0031] Preferably, the actuator 30 is a hydraulic cylinder-piston unit containing a cylinder 32, which is hinged to the first main arm 6 by means of a fifth pin 31, and a piston rod 34, is hinged to a lever 40 via a sixth pin 42.

[0032] Pokretači 30 uređaja za podizanje 4, koji su pridruženi istoj podlozi 2, prikladno su upravljani tako da se osigura njihovo istovremeno i jednako aktiviranje, kako bi se garantovalo da se podloga pokreće samo translatornim kretanjem u kretanju bilo da je dizanje ili spuštanje. [0032] The actuators 30 of the lifting device 4, which are attached to the same base 2, are appropriately controlled to ensure their simultaneous and equal activation, to guarantee that the base is moved only by translational movement in the movement whether it is lifting or lowering.

[0033] Ako se posmatra detaljnije, u tu svrhu, cilindri 32 pokretača 30 se napajaju u okviru hidrauličkog kruga, koji nije prikazan, pomoću razvodnika protoka koji se kontroliše tako da se obezbedi istovremeno i ravnomerno kretanje klipnih šipki 34 unutar odgovarajućih cilindara 32 Čak štaviše, ovi cilindri bi se mogli podjednako efikasno kontrolisati i elektronskim sistemom za uravnoteženje. [0033] If observed in more detail, for this purpose, the cylinders 32 of the actuator 30 are fed within the hydraulic circuit, which is not shown, by means of a flow distributor which is controlled so as to ensure the simultaneous and uniform movement of the piston rods 34 within the corresponding cylinders 32. Moreover, these cylinders could be equally effectively controlled by an electronic balancing system.

[0034] U svakom slučaju, pokretači 30 i njihova kontrola su poznatog tipa i o njima se neće dalje raspravljati. Međutim, na primer, može se pogledati rešenje koje je opisano u predlogu patenta VE2007A000059, koji je podnet 20. avgusta 2007. u ime istog podnosioca zahteva. [0034] In any case, the actuators 30 and their control are of a known type and will not be discussed further. However, for example, one can look at the solution described in patent proposal VE2007A000059, which was filed on August 20, 2007 in the name of the same applicant.

[0035] Povoljno je da se prva glavni krak 6 i drugi glavni krak 8 i prvi pomoćni krak 20 i drugi pomoćni krak 24 mogu sastojati od dve identične ploče koje su okrenute jedna prema drugoj, međusobno povezane međusobno i razmaknute poprečnim pločama. Na ovaj način, svaki krak određuje između dve ploče kojesu okrenute jedna prema drugoj, prostor koji je pogodan za smeštaj odgovarajućeg pokretača 30. [0035] It is advantageous that the first main arm 6 and the second main arm 8 and the first auxiliary arm 20 and the second auxiliary arm 24 can consist of two identical plates facing each other, mutually connected to each other and separated by transverse plates. In this way, each arm determines between the two plates that are facing each other, a space that is suitable for housing the corresponding actuator 30.

[0036] Svaka podloga 2 sastoji se od metalne ploče koja je savijene u obrnuti U-oblik sa bočnim prirubnicama 52 koje su visine kao što je ranije definisano, sa centralnom mrežom 50 i s podom 3, prostor koji, kad je dizalica spuštena, u potpunosti prima uređaje za podizanje 4 (vidi Slike 3 i 7). Drugim rečima, visina bočnih prirubnica 52 svake podloge 2 je definisana tako da bude u osnovi jednaka ili nešto veća od visine uređaja za podizanje 4 kada je ovaj u sklopljenom stanju. [0036] Each base 2 consists of a metal plate bent into an inverted U-shape with side flanges 52 of the height as previously defined, with a central grid 50 and with a floor 3, a space which, when the crane is lowered, fully accommodates the lifting devices 4 (see Figures 3 and 7). In other words, the height of the side flanges 52 of each base 2 is defined to be basically equal to or slightly greater than the height of the lifting device 4 when it is in the folded state.

[0037] Dizalica za vozila prema pronalasku deluje na sledeći način: kada je dizalica u spuštenom stanju (vidi slike 3 i 7), pokretači 30 su u stanju minimalnog izduženja. U ovom stanju, glavni kraci 6, 8, pomoćni kraci 20, 24 i poluga 40 svi su postavljeni koplanarno i paralelni su sa podom. Na ovaj način se vozilo (koje nije prikazano na crtežima) može, radi podizanja, postaviti na podloge 2. [0037] The vehicle crane according to the invention works as follows: when the crane is in the lowered state (see figures 3 and 7), the actuators 30 are in a state of minimum elongation. In this condition, the main arms 6, 8, the auxiliary arms 20, 24 and the lever 40 are all positioned coplanar and parallel to the floor. In this way, the vehicle (which is not shown in the drawings) can be placed on the bases 2 for lifting.

[0038] Kada se pokretači 30 aktiviraju, njihovo početno izduženje uzrokuje da se odgovarajuća poluga 40 okreće oko sedme osovine 44, tako da omogući dovođenje valjaka 45 u kontakt s potpornom pločom 47 koja je postavljena na prvi pomoćni krak 20. [0038] When the actuators 30 are activated, their initial extension causes the corresponding lever 40 to rotate about the seventh axis 44, so as to enable the rollers 45 to be brought into contact with the support plate 47 which is mounted on the first auxiliary arm 20.

[0039] Potom postepeno, kako se aktuatori 30 produžavaju, valjci 45 se okreću na potpornoj ploči 47, dok se odgovarajuće poluge 40 nastavljaju da okreću oko svojih osovina 44, na taj način se omogućava da se podloge 2 podižu (vidi slike 4, 5, 8 i 9), sve dok se rotacijom poluga 40 ne spreči njihovo sudaranje sa odgovarajućim fiksnim delovima 49 odgovarajućeg drugog glavnog kraka 8. [0039] Then gradually, as the actuators 30 are extended, the rollers 45 rotate on the support plate 47, while the corresponding levers 40 continue to rotate about their axes 44, thus allowing the bases 2 to be raised (see figures 4, 5, 8 and 9), until the rotation of the levers 40 prevents them from colliding with the corresponding fixed parts 49 of the corresponding second main leg 8.

[0040] Od tog trenutka, kontinuirano izduživanje pokretača 30 izaziva sledeće događaje: [0040] From that moment, continuous elongation of the actuator 30 causes the following events:

- glavni kraci 6, 8 konstruisani su tako da se okreću i na taj način da povećavaju ugao koji je formiran između njih; naročito, izduženje pokretača 30 uzrokuje povlačenje drugog glavnog kraka 8 od prvog glavnog kraka 6, pomoću poluge 40, - the main arms 6, 8 are constructed so that they turn and thus increase the angle formed between them; in particular, the extension of the actuator 30 causes the second main arm 8 to be withdrawn from the first main arm 6, by means of the lever 40,

- kraci 20, 24 takođe su konstruisani tako da se okreću i na taj način da povećavaju ugao između njih; posebno, rotacija drugog glavnog kraka 8 uzrokuje da se drugi pomoćni krak 24 okreće i povlači od prvog pomoćnog kraka 20, koji se zatim podiže zato što se podiže prvi glavni krak 6, na koji je zglobno povezan preko treće osovine 26. - the arms 20, 24 are also designed to rotate and thus increase the angle between them; in particular, the rotation of the second main arm 8 causes the second auxiliary arm 24 to rotate and withdraw from the first auxiliary arm 20, which is then raised because the first main arm 6, to which it is hinged via the third shaft 26, is raised.

[0041] Štaviše, dok se drugi pomoćni krak 24 okreće u odnosu na prvi pomoćni krak 20, donji kraj ovog, opremljen valjcima ili kliznim blokovima 22, klizne po podu 3 ili po odgovarajućim vođicama, i na taj način se približi nosaču šarke 12. [0041] Moreover, while the second auxiliary arm 24 rotates in relation to the first auxiliary arm 20, the lower end of this, equipped with rollers or sliding blocks 22, slides on the floor 3 or on the corresponding guides, and thus approaches the hinge support 12.

[0042] Rezultat toga je da se podloge 2 kreću prema gore u odnosu na pod 3 uz značajno translatorno kretanje. Prisustvo odgovarajućeg regulatora za pokretače 30 osigurava sinhronost pokreta između uređaja za podizanje 4 koji deluju na toj podlozi i onih koji deluju na ostalim podlogama. [0042] The result is that the substrates 2 move upwards in relation to the floor 3 with a significant translational movement. The presence of a suitable controller for the actuators 30 ensures the synchronicity of movements between the lifting devices 4 operating on that platform and those operating on other platforms.

[0043] U izvedbi koja je ovde opisana i predstavljena, prikazano je da: [0043] In the embodiment described and presented here, it is shown that:

- prvi glavni krak 6 je zglobno vezan za pod 3 preko konzolne šarke 12, - the first main arm 6 is hinged to the floor 3 via the cantilever hinge 12,

- prvi pomoćni krak 20 je opremljen valjcima ili kliznim blokovima 22 za njegovo klizanje po podu 3, - the first auxiliary arm 20 is equipped with rollers or sliding blocks 22 for its sliding on the floor 3,

- pokretač 30 ima zgloban kraj prema prvom glavnom kraku 3 u blizini poda 3 i - drugi glavni krak 8 je zglobno vezan za podlogu 2; međutim, ovaj pronalazak takođe može da podrazumeva varijantu koja je obrnuta prethodnoj, u kojoj: - the actuator 30 has a hinged end towards the first main arm 3 near the floor 3 and - the second main arm 8 is hinged to the base 2; however, this invention may also include a variant that is the reverse of the previous one, in which:

- prvi glavni krak 6 je zglobnovezan za podlogu 2, - the first main arm 6 is hinged to the base 2,

- prvi pomoćni krak 20 poseduje valjke ili klizne blokove 22 za njegovo klizanje po odgovarajućim vođicama koje se nalaze na podlozi 2, - the first auxiliary arm 20 has rollers or sliding blocks 22 for its sliding along the appropriate guides located on the base 2,

- pokretač 30 ima kraj koji je zglobno vezan na podlogu 2 i - the actuator 30 has an end which is hinged to the base 2 i

- drugi glavni krak 8 je zglobno vezan za pod 3. - the second main arm 8 is hinged to the floor 3.

[0044] U modifikovanoj realizaciji koja nije prikazana na crtežima, pokretač 30 i glavni krak 6 su zglobno vezani na uzdužne elemente koji su naslonjeni na i / ili su zglobno vezani na pod 3. [0044] In a modified embodiment that is not shown in the drawings, the actuator 30 and the main arm 6 are hinged to the longitudinal elements that rest on and/or are hinged to the floor 3.

[0045] Iz prethodnog je vidljivo da je dizalica za vozila prema ovom predmetnom pronalasku povoljnija od tradicionalnih dizalica, jer kad je dizalica u donjem položaju, ima posebno malu visinu od oko 150 mm, ili čak i manje, u zavisnosti od nosivost i od ugrađene opreme, kao što su rotacione ploče, pomoćni podizači i zadnje oscilirajuće ploče, i što više omogućava da donji rub bočnih prirubnica 52 podloge 2 dođe u dodir sa podom, tako da potpuno odvoji uređaje za podizanje od spoljašnjosti, kada je dizalica spuštena. [0045] It is evident from the above that the vehicle lift according to the present invention is more favorable than traditional lifts, because when the lift is in the lower position, it has a particularly low height of about 150 mm, or even less, depending on the load capacity and the installed equipment, such as rotary plates, auxiliary lifts and rear oscillating plates, and as much as possible allows the lower edge of the side flanges 52 of the base 2 to come into contact with the floor, so that completely separates the lifting devices from the outside, when the crane is lowered.

[0046] Štaviše, dizalica za vozila prema pronalasku je pogodno i zbog toga što je posebno stabilna i zbog toga što nepostojanje mehaničkih veza između podloga omogućava rukovaocima slobodan pristup ispod podignute dizalice. [0046] Furthermore, the vehicle crane according to the invention is suitable both because it is particularly stable and because the absence of mechanical connections between the platforms allows operators free access under the raised crane.

Claims

Requirements

1. An improved jack (1) for motor vehicles, comprising:

- two parallel bases (2) for supporting vehicle wheels, where each base (2) is equipped with two devices (4) for lifting from the floor (3), said two devices (4) of each base (2) evenly distributed next to each other in the direction of the longitudinal structure of the base itself, where each lifting device (4) contains:

- the first main arm (6) and the second main arm (8) which are of equal length, hinged at one end and hinged at the other end in relation to the floor (3) and to the base (2) via two vertically placed axes,

- the first and second auxiliary arms (20, 24) which are hinged at one end, whereby the first auxiliary arm (20) is hinged to said first main arm (6), and at its other end is equipped with a first means (22) for its sliding on the floor (3) or along said base (2), the second auxiliary arm (24) is hinged to the second main arm (8),

wherein the vehicle jack (1) is characterized by the fact that each lifting device (4) contains an actuator (30) with a first end which is hinged to the main arm (6, 8) in the immediate vicinity of the floor (3) or to the mentioned base (2), and the other end is hinged to one end of the lever (40), which is centrally hinged to the other main arm (8, 6) and equipped at its other end with another sliding means (45).

2. Vehicle jack according to claim 1, characterized in that one end of said auxiliary arm (24) is hinged to the first auxiliary arm (20), while the other end of said second auxiliary arm (24) is hinged to the second main arm (8).

3. Vehicle lift according to one or more of the preceding claims, characterized by the fact that the shaft (26) through which the first main arm (6) is hinged to the first auxiliary arm (20) differs from the shaft (31) through which the actuator (30) is hinged to the first main arm (6).

4. Vehicle lift according to one or more of the previous requirements, characterized by the fact that the distance between the said first sliding means (22) of the said first auxiliary arm (20) and the pivot axis (26) is not articulated and the distance between the said first main arm and the said first auxiliary arm is equal to the distance between the latter and the axis of the shaft through which the first main arm (6) is hinged to the floor (3) or to the base (2).

5. A vehicle lift according to one or more of the previous requirements, characterized by the fact that said lever (40) has a shape such that the axis of the shaft (44) through which it is hinged to the main arm (6, 8) is parallel to the plane passing through the axis of the shaft (42) through which it is hinged to the driver (30) and through the axis of rotation of said second sliding means (45).

6. A vehicle crane according to one or more of the preceding claims, characterized in that the parts of said main arms (6, 8) and said auxiliary arms (20, 24) which are hinged together define a hinged parallelogram.

7. Vehicle lift according to one or more of the previous requirements, characterized in that the shaft (28) through which the second auxiliary arm (24) is hinged to the said second main arm (8) is located between the shaft through which the two main arms (6, 8) are hinged to each other, and the shaft through which the said lever (40) is hinged to the second main arm (8).

8. Vehicle lift according to one or more of the preceding claims, characterized in that said first sliding means (22) contains rollers or sliding blocks that are directly slid on the floor (3), on the basic longitudinal member, or on guides that are connected to the floor (3) or to said base (2).

9. A vehicle jack according to one or more of the preceding claims, characterized in that each base (2) consists of a metal plate in the shape of an inverted letter U, with a central grid (50) that defines the surface for supporting the wheels of the vehicle and with two side flanges having a height such that, when the jack is in a lowered state, its lower edge rests on the floor (3).

10. Vehicle lift according to the previous patent claim, characterized by the fact that the height of the two side flanges of each base (2) is equal to or slightly greater than the height of the corresponding lifting device (4) when it is in a folded state.

11. Vehicle lift according to one or more of the preceding claims, characterized by the fact that the actuators (30) of the device for lifting (4) of one and the same base (2) are connected together with the lifters of the other base (2), and they are controlled so that their synchronized functioning is ensured.

12. Vehicle lift according to one or more of the preceding claims, characterized in that said second sliding means (45) is connected to corresponding support plates (47) which are connected to the first auxiliary arm (20).

13. A vehicle jack according to one or more of the preceding claims, characterized in that said second sliding means (45) comprises elements that rotate about axes that are separate from each other but parallel to each other, so that a multiple support is created.

14. Vehicle lift according to one or more of the previous requirements, characterized by the fact that the mentioned two longitudinal parallel bases (2) do not have transverse mechanical connections between them and / or characterized by the fact that the lifting devices (4) of each base (2) ) act on the opposite end parts of the base itself and / or where each base (2) has a length such that it receives all the wheels located on one side of the vehicle to be lifted.

15. A vehicle lift according to one or more of the preceding claims, characterized in that said main arms (6) and second main arms (8), and/or said first auxiliary arms (20) and second auxiliary arms (24), of each lifting device (4), consist of two identical plates facing each other and connected by transverse plates with spacers, so that there is a space between them to accommodate the corresponding actuator (30).