SE178504C1

SE178504C1 -

Info

Publication number: SE178504C1
Authority: SE
Publication date: 1962-01-01

Description

Uppfinnare: M Nylander och C J Larsson Patentet 153 882 riktar sig pa en lyftanordning bestdende av tva eller hero pelare med teleskopiskt i varandra forskjutbart anordnade kolvar (cylindrar). Det vasentligt kannetecknande for densamma är att varje kolv i den ena pelaren är forenad med den eller de kolvarna i den eller de andra pelarna, vilka ha samma ordningsnummer, t. ex. nedifran raknat, som namnda kolv, samt att var och en av de kolvenheter, som hest i av de salunda forenade kolvarna, har samma kolvarea. Inventors: M Nylander and C J Larsson Patent 153,882 is directed to a lifting device consisting of two or more pillars with telescopically displaceably arranged pistons (cylinders). The essential characteristic of the same is that each piston in one pillar is united with the piston or pistons in the other pillar or pillars, which have the same order number, e.g. from below shaved, as the said piston, and that each of the piston units, which are housed in the salunda united pistons, has the same piston area.

Foreliggande uppfinning riktar sig pa en vidareutveckling av lyftanordningen enligt patentet 153 882 och kinnetecknas densamma vasentligen darav, att kolvenheterna aro sit fOrenade med varandra medelst blockanordningar eller liknande, att samtliga kolvenheter komma att relativt sina cylinderenheter rara sig med samma hastighet vid lyf tanordningens paverkan. Nar na'gon av kolvenheterna befinner sig i sitt nedre andlage, befinna sig salunda samtliga kolvenheter i sina nedre andlagen, och nar flagon av kolvenheterna befinner sig i sitt Ovre andlage, befinna sig alltsa samtliga kolvenheter i sina lavre andlagen. Denna kolvenheternas likf ormiga rarelse, som ju sker med konstani hastighet, ger lyftanordningen en synnerligen jamn och behaglig gang. The present invention is directed to a further development of the lifting device according to patent 153 882 and is characterized in that the piston units are connected to each other by means of block devices or the like, that all piston units move relative to their cylinder units at the same speed under the influence of the lifting device. When one of the piston units is in its lower spirit, all the piston units are in its lower spirit, and when the flag of the piston units is in its upper spirit, all the piston units are in its lower spirit. This uniform shape of the piston units, which takes place at a constant speed, gives the lifting device an extremely smooth and comfortable gait.

Uppfinningen kommer att narmare beskrivas i anslutning till bifogade ritning, vilken visor elf par som exempel valda utforingsformer av lyftanordningen enligt densamma, vilka hada innefatta tva pelare som aro lika och motriktade. Fig. 1 visor den ena lyftanordningen schematiskt sedd fran sidan innefattande tva kolvenheter och fig. 2 visar den andra lyftanordningen likaledes schematiskt sedd frau sidan innefattande tre kolvenheter. The invention will be described in more detail in connection with the accompanying drawing, which shows eleven pairs of exemplary embodiments of the lifting device according to the same, which had comprised two pillars which were equal and opposite. Fig. 1 shows the one lifting device schematically seen from the side comprising two piston units and Fig. 2 shows the other lifting device also schematically seen from the side comprising three piston units.

Lyftanordningarna besta av de tva. pelarna 1 och 2. Enligt fig. 1 innefattar var och en av pelarna 1 och 2 dels en cylinder 3a och 3b och dels tva. kolvar 4a, 4b och 5a, 5h och enligt fig. 2 innefattar var och en av pelarna 1 och 2 dels en cylinder 3a och 3b och dels tre kolvar 4a, 4b, 5a, 5b och 6a, 6b, vilka aro teleskopiskt forskjutbart anordnade. I den ena pelaren 1 ha kolvarna 4a och 5a respektive 4a, 5a och 6a nedifran raknat avtagande kolvareor, medan kolvarna 5b och 4b respektive 6b, 5b och 4b i den andra pelaren 2 ha n:edifran tilltagande kolvarea. The lifting devices consist of the two. pillars 1 and 2. According to Fig. 1, each of the pillars 1 and 2 comprises partly a cylinder 3a and 3b and partly two. pistons 4a, 4b and 5a, 5h and according to Fig. 2 each of the columns 1 and 2 comprises partly a cylinder 3a and 3b and partly three pistons 4a, 4b, 5a, 5b and 6a, 6b, which are arranged telescopically displaceably. In one pillar 1, the pistons 4a and 5a and 4a, 5a and 6a, respectively, have shaved decreasing piston areas from below, while the pistons 5b and 4b and 6b, 5b and 4b, respectively, in the other column 2 have an increasing piston area from below.

Enligt den i fig. 1 visade utforingsformen ha kolvarna 4a och 5b samma gemensamma kolvarea som kolvarna 5a och lb. Enligt den I fig. 2 visade utforingsformen ha kolvarna 4a och 6b samma gemensamma kolvarea som kolvarna 5a och 5b respektive kolvarna 6a och 4h. According to the embodiment shown in Fig. 1, the pistons 4a and 5b have the same common piston area as the pistons 5a and 1b. According to the embodiment shown in Fig. 2, the pistons 4a and 6b have the same common piston area as the pistons 5a and 5b and the pistons 6a and 4h, respectively.

De hada ned.ersta enheterna i de Edda pelarna 1 och 2 am f5renade medelst en bottenplatta 9, medan de bada oversta enhetema i de hada pelarna 1 och 2 aro forenade medelst en lyftplattform 10 eller dylikt. Enligt den I fig. 1 visade utforingsformen aro kolvarna 4a och 4b forenade medelst en staganordning 7. Enligt den i fig. 2 visade utforingsformen aro kolvarna 5a och 4b fOrenade me-deist en staganordning 8', medan kolvarna 4a och 5b aro forenade medelst en staganordning 7'. Samtliga cylinderkolvenheter aro salunda sa forenade, att de ha samma kolvarea. The lower units of the Edda pillars 1 and 2 are connected by means of a bottom plate 9, while the two upper units in the two pillars 1 and 2 are joined by means of a lifting platform 10 or the like. According to the embodiment shown in Fig. 1, the pistons 4a and 4b are united by means of a strut device 7. According to the embodiment shown in Fig. 2, the pistons 5a and 4b are united by a strut device 8 ', while the pistons 4a and 5b are united by a stay device 7 '. All cylinder piston units are thus so united that they have the same piston area.

Enligt foreliggande uppfinning aro kolvenheterna sa farenade med varandra medelst blockanordningar 11 eller liknande, att samtliga kolvenheter komma att relativt sina cylinderenheter rtira sig med samma hastighet vid lyftanordningens. paverkan. According to the present invention, the piston units are so spaced apart by block devices 11 or the like that all piston units will move relative to their cylinder units at the same speed at the lifting device. paverkan.

Enligt den i fig. 1 visade utforingsformen ar staganordningen 7 vid sin ena dude forsedd med ett kedjehjul 12 eller dylikt for en kedja 18, en. lina eller dylikt, Tars ena ande ar fast vid cylindern 3a och vars andra ande ar fist vid cylindern 3h. Fastena 11 och 15 aro harvid belagna ovanfor kedjehjulet 12. According to the embodiment shown in Fig. 1, the strut device 7 is provided at its one end with a sprocket 12 or the like for a chain 18, a. line or the like, one of the Tars is attached to the cylinder 3a and the other end of which is attached to the cylinder 3h. Fasteners 11 and 15 are located above the sprocket 12.

Detta arrangemang kan i vissa fall vara till fyllest. I regel ar det emellertid lampligt att 2— — a.ven forse staganordningens 7 andra ande med ett kedjehjul 16 eller dylikt for en kedja 17 eller dylikt, vars ena ande Sr fast vid cylindern 3a och vars andra dude ar fast vid cylindern 3b. Fastena 11 och 15 ara harvid belagna under kedjehjuIet 16. Fir ovrigt aro fastena 14 och 15 gemensamma fOr de hada kedjorna 13 och 17, som kunna utgora en sammanhangande kedja. Genom blockanordningen 11 tillairsakras att enheten 5a, 3b ror sig dubbelt sa snabbt som enheten 1a, 4b, dvs. att enheten 5a, 3b ror sig med samma hastighet relativt enheten 4a, 4b, som namnda enhet r5r sig relativt den fasta enheten 3a, 5b. This arrangement can in some cases be the most complete. As a rule, however, it is appropriate to provide the second end of the stay device 7 with a sprocket 16 or the like for a chain 17 or the like, one end of which is fixed to the cylinder 3a and the other end of which is fixed to the cylinder 3b. Fasteners 11 and 15 are then located below the chain wheel 16. In addition, fasteners 14 and 15 are common to the had chains 13 and 17, which can form a continuous chain. The block device 11 ensures that the unit 5a, 3b moves twice as fast as the unit 1a, 4b, i.e. that the unit 5a, 3b moves at the same speed relative to the unit 4a, 4b, as said unit moves relative to the fixed unit 3a, 5b.

Blockanordningarna 11 vid utfOringsformen enligt fig. 2 aro av samma beskaffenhet som blockanordningen 11 enligt fig. 1. SAlunda kommer enheten 6a, 3b att rora sig Ire ganger sa snabbt som enheten 4a, 5b, medan enheten 5a, 4b kommer att rora sig dubbelt sa snabht som enheten 4a, 5b, dvs. att Sven har Sr den relativa hastigheten enheterna emelIan densamma. The block devices 11 in the embodiment according to Fig. 2 are of the same nature as the block device 11 according to Fig. 1. Thus, the unit 6a, 3b will move twice as fast as the unit 4a, 5b, while the unit 5a, 4b will move twice as fast. snabht as the unit 4a, 5b, i.e. that Sven has the relative velocity of the units between them.

I praktiken anordnas kedjehjulen 12 och 16 i ett plan, som Sr vinkelratt mot planet genom de hada pelarna 1 och 2, varfor dessa pelare kunna anordnas mycket nara varandra trots blockanordningen 11. In practice, the sprockets 12 and 16 are arranged in a plane which is perpendicular to the plane through the had pillars 1 and 2, so that these pillars can be arranged very close to each other despite the block device 11.

Uppfinningen Sr icke begransad till det ()van beskrivna och pa ritningen -visade, utan ken densamma forandras pa ett flertal satt mom ramen for efterfoljande patentansprak. The invention is not limited to what () is described and shown in the drawing, but can be changed in a number of ways within the scope of subsequent patent claims.

Claims

Patent claim: 1 Lifting device according to patent 153 882, characterized in that the piston units are so united with each other by means of block arrangements (11) or the like, that all piston units will move relative to their cylinder units at the same speed under the influence of the lifting device. Lifting device according to claim 1, characterized in that the pistons (4a, 4b) in the elements (7) joining the middle units or units are at least at or next to one of them provided with sprockets (12) or the like for a chain (13 ) or the like, one end of which is fixed to the nearest cylinder and / or piston unit (3a) and the other end is fixed to the nearest cylinder and / or piston unit, the fasteners (14, 15) being mounted on the same side cm the sprocket (12) in the direction of movement of the lifting device shaved. Lifting device according to claim 2, characterized in that the pistons (4a, 4b) in the elements (7) joining the middle units or units are also at or next to their other spirits provided with a second sprocket (16) or the like for a second chain (17) or the like, one dude of which is attached to the nearest cylinder and / or piston unit (3a) and the other end is attached to the nearest cylinder and / or piston unit (3b), the fasteners (11, 15) are Magna on the same side if the second sprocket (16) in the direction of rotation of the lifting device is shaved.

Lifting device according to claim 2 and 3, characterized in that the fasteners (14, 15) at the cylinder and / or piston units (3a, 3b) are common to the two chains (13, 17) or the like. Request publications: Stockholm 196

2. Kungl. Boktr. P. A. Norstedt & Mier .. 620089