NO771534L - CLAMPING UNIT FOR TRUCK. - Google Patents

CLAMPING UNIT FOR TRUCK.

Info

Publication number
NO771534L
NO771534L NO771534A NO771534A NO771534L NO 771534 L NO771534 L NO 771534L NO 771534 A NO771534 A NO 771534A NO 771534 A NO771534 A NO 771534A NO 771534 L NO771534 L NO 771534L
Authority
NO
Norway
Prior art keywords
clamping
frame
arms
stored
jaws
Prior art date
Application number
NO771534A
Other languages
Norwegian (no)
Inventor
Martti Bergman
Pertti Kukkonen
Eero Lehelae
Esa Mahlakaarto
Bo Vennstroem
Original Assignee
Auramo Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Auramo Oy filed Critical Auramo Oy
Publication of NO771534L publication Critical patent/NO771534L/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075Constructional features or details
    • B66F9/12Platforms; Forks; Other load supporting or gripping members
    • B66F9/18Load gripping or retaining means
    • B66F9/183Coplanar side clamps

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Clamps And Clips (AREA)

Description

Kleminnretning for trucker.Clamping device for trucks.

Foreliggende oppfinnelse angår et klemapparat for trucker, der det i apparatets ramme er lagret mot hverandre/ fra hverandre ved hjelp av trykksylindre svingbare klemarmer, ved hvis frie ender det er lagret klembakker som stikker ut fra armene og som er svingbare omkring lengdeaksen. The present invention relates to a clamping device for trucks, where in the frame of the device, pivotable clamping arms are stored against each other/apart from each other by means of pressure cylinders, at the free ends of which clamping jaws are stored which protrude from the arms and which are pivotable around the longitudinal axis.

Ulempen med kjente klemapparater av denne art, er at retningen for klembakkene under klemarmenes svingbevegelser ikke holdes uforanderlig i forhold til rammen, noe som er nødvendig f:eks. ved håndtering av baller. The disadvantage of known clamping devices of this kind is that the direction of the clamping jaws during the swinging movements of the clamping arms is not kept unchanged in relation to the frame, which is necessary e.g. when handling balls.

Det ovennevnte problem er riktignok løst i enkelte klemapparater som er i bruk, der bakkenes parallellstilling -bibeholdes ved hjelp av leddarmer, og de til leddarmene festede bakkene beveger seg lineært;i hele funksjonsområdet for bakkene . The above-mentioned problem has indeed been solved in some clamping devices that are in use, where the parallel position of the slopes is maintained by means of articulated arms, and the slopes attached to the articulated arms move linearly; in the entire functional range of the slopes.

Den største ulempen med slike klemapparater med leddarmer er den raske slitasjen av leddarmenes glideflater, de store friksjonstapene og den store vekt. Slitasjen forår-sakes av støv og sand som kommer fra kjøreunderlaget og setter seg fast på glideflatene» Det har vist seg nesten umulig innen en fornuftig kostnadsramme å beskytte disse glideflatene mot støv og sand. De store friksjonstapene på glideflatene forårsaker nedsettelse av klemkraften og effekttap på 20-^0 %. Den store vekten forårsaker en kapasitetminskning på trucken med ca. lM. The biggest disadvantage of such clamping devices with articulated arms is the rapid wear of the sliding surfaces of the articulated arms, the large frictional losses and the large weight. The wear and tear is caused by dust and sand that comes from the road surface and gets stuck on the sliding surfaces." It has proven almost impossible to protect these sliding surfaces against dust and sand within a reasonable cost framework. The large frictional losses on the sliding surfaces cause a reduction in the clamping force and a power loss of 20-^0%. The large weight causes a capacity reduction of the truck by approx. lM.

Hensikten med foreliggende oppfinnelse er å løse det ovennevnte problem vedrørende klemapparater av den art som er nevnt ovenfor. Karakteristisk for klemaggregatet ifølge The purpose of the present invention is to solve the above-mentioned problem regarding clamping devices of the type mentioned above. Characteristic of the clamping unit according to

i in

oppfinnelsen er at det mellom rammen og klembakkene er anordnet parallellstenger som holder klembakkenes retninger uforandret i forhold til rammen, uavhengig av klemarmenes bevegelser. Således har klemapparatet et vidt funksjonsområde, ettersom klembakkene, f.eks. ved håndtering ;av forskjellig store baller, bibeholdes parallelle. the invention is that parallel bars are arranged between the frame and the clamping jaws which keep the directions of the clamping jaws unchanged in relation to the frame, regardless of the movements of the clamping arms. Thus, the clamping device has a wide range of functions, as the clamping jaws, e.g. when handling bales of different sizes, keep them parallel.

En fordelaktig ut førelses form for oppfinnelsen erkarakterisert vedat klemarmens leddpunkt, klembakkens dreiepunkt og parallellstagenes leddpunkter danner et parallellogram. , Dette utgjør en enkel løsning for å få en uforandret An advantageous embodiment of the invention is characterized by the joint point of the clamp arm, the pivot point of the clamp tray and the joint points of the parallel struts forming a parallelogram. , This constitutes a simple solution to obtain an unchanged

. retning på klembakkene i forhold til rammen.. direction of the clamping jaws in relation to the frame.

En annen utførelses form erkarakterisert vedat klemarmen er L-formet og at klembakken ved sitt midtpunkt er lagret ved den frie enden av L'ens horisontale del. Således kommer de klemkrefter som er rettet mot varen til å fordeles jevnt og vinkelrett. Another embodiment is characterized by the fact that the clamping arm is L-shaped and that the clamping tray at its midpoint is stored at the free end of the L's horizontal part. Thus, the clamping forces directed at the product will be distributed evenly and perpendicularly.

En tredje utførelsesform for oppfinnelsen erkarakterisert vedat klembakken er sammenbundet foruten ved L'ens frie'' ende, også ved dens motstående ende, og at det sistnevnte leddet er fjærende. Ettersom klembakkens andre festepunkt eller ledd er fjærende, kan klembakken sette seg . jevnt an mot lasten selv om lastens, form fra det ene til-fellet til det andre forandres en aning, idet klemkreftene og også løftekreftene rettes jevnt mot' lasten. A third embodiment of the invention is characterized by the fact that the clamp tray is connected not only at the free end of the L, but also at its opposite end, and that the latter link is springy. As the clamp tray's second attachment point or joint is springy, the clamp tray can settle. evenly against the load, even if the shape of the load changes slightly from one case to the next, as the clamping forces and also the lifting forces are directed evenly against the load.

Oppfinnelsen skal i det følgende forklares nærmere The invention will be explained in more detail below

under henvisning til tegningene, derwith reference to the drawings, therein

fig. 1 viser et klemapparat ifølge oppfinnelsen som fig. 1 shows a clamping device according to the invention which

er festet til en truck, sett skrått ovenfra.is attached to a truck, seen obliquely from above.

Fig. 2 viser klemapparatet sett forfra.Fig. 2 shows the clamping device seen from the front.

Fig. 3 viser klemapparatet sett fra siden. Klemapparatet omfatter én ramme 1 ved hvilken klemarmene 2 er lagret. Armene 2 er svingbare ved hjelp av trykksylindrene 3 omkring leddpunktene 7 mot/fra hverandre. Klemarmene 2 er L-formet og ved de frie endene av den horisontale delen er det lagret klembakker 4. Klembakkene h er sammenbundet med fjærende ledd 5'ved de motsvarende endene av L'ens horisontale deler. Mellom.rammen 1 og klembakkene ^ er det anordnet parallellstag 6 som bevirker at klembakkene H har uforandret retning i forhold til rammen 1 til tross for klemarmenes 2 bevegelser. Dette beror på at klemarmenes leddpunkter 7, klembakkens dreiepunkter 8 og parallellstagenes leddpunkter 9, 10 danner p.arallellogrammer. Når klembakkene 4 således bibeholder sin retning uforandret, har klemapparatet et stort funksjonsområde, f. eks. ved hånte.ring av forskjellig-store baller. Klemkraften på klembakkene 4 frembringes av trykksylindrene 3 som er anordnet mellom rammen og klemarmene. Ettersom klemarmenes 2 og klembakkenes 4 andre ledd er fjærende, kan klembakkene 4 settes jevnt an mot lasten. Fig. 3 shows the clamping device seen from the side. The clamping device comprises one frame 1 on which the clamping arms 2 are stored. The arms 2 are pivotable by means of the pressure cylinders 3 around the joint points 7 towards/apart from each other. The clamping arms 2 are L-shaped and clamping jaws 4 are stored at the free ends of the horizontal part. The clamping jaws h are connected with springy links 5' at the corresponding ends of the L's horizontal parts. Between the frame 1 and the clamping jaws ^ there is arranged a parallel strut 6 which causes the clamping jaws H to have an unchanged direction in relation to the frame 1 despite the movements of the clamping arms 2. This is because the joint points 7 of the clamp arms, the pivot points 8 of the clamp tray and the joint points 9, 10 of the parallel bars form parallelograms. When the clamping jaws 4 thus retain their direction unchanged, the clamping device has a large functional area, e.g. by taunting of different-sized balls. The clamping force on the clamping jaws 4 is produced by the pressure cylinders 3 which are arranged between the frame and the clamping arms. As the second link of the clamping arms 2 and the clamping jaws 4 is springy, the clamping jaws 4 can be placed evenly against the load.

Det er klart for en fagmann på området at de forskjellige utførelsesformene for oppfinnelsen kan variere innen rammen for oppfinnelsen. Således kan bakkene ha andre former enn de som er vist på■tegningen, f.eks. erstattes med rulleblad, gafler eller lignende gripeorganer med bedre tilpassede gripeflater for håndtering av spesielle gjenstander. Den andre klemarmen kan også erstattes med en fast arm eller med en arm som kan låses i forskjellige stillinger. Det er ikke mange bevegelige deler, og konstruksjonen passer spesielt bra for et funksjonsområde der bredden på lasten ikke skifter for mye. Dessuten kan rammen være teleskopåktig, idet klemapparatets rammebredde og funksjonsområde kan forandres mekanisk eller hydraulisk. It is clear to a person skilled in the art that the various embodiments of the invention may vary within the scope of the invention. Thus, the slopes can have other shapes than those shown in the ■drawing, e.g. be replaced with roller blades, forks or similar gripping devices with better adapted gripping surfaces for handling special objects. The second clamping arm can also be replaced with a fixed arm or with an arm that can be locked in different positions. There are not many moving parts, and the construction is particularly well suited for a functional area where the width of the load does not change too much. In addition, the frame can be telescopic, as the clamping device's frame width and functional area can be changed mechanically or hydraulically.

Claims (3)

1. Klemapparat for trucker, der i apparatets ramme (1) er lagret mot/fra hverandre ved hjelp av arbeidssylindre (3) svingbare klemarmer (2), til.hvis frie ender det er lagret fra disse utstikkende omkring' sin lengdeakse svingbare klembakker (4), karakterisert ved at det mellom rammen (1) og klembakkene (4) er anordnet parallellstag (6) som holder klembakkenes retninger uforandret i forhold til rammen, uavhengig av klemarmenes (2) bevegelser.1. Clamping device for trucks, where in the frame of the device (1) pivotable clamping arms (2) are stored against/apart from each other by means of working cylinders (3), the free ends of which are stored from these protruding around their longitudinal axis pivotable clamping jaws ( 4), characterized by the fact that between the frame (1) and the clamping jaws (4) parallel struts (6) are arranged which keep the directions of the clamping jaws unchanged in relation to the frame, regardless of the movements of the clamping arms (2). 2. Klemapparat ifølge krav 1,, karakterisert ved at klemarmens (2) leddpunkt (7)3 klembakkens ( H) dreiepunkt (8) og parallellstagets (6) leddpunkter (9,10) danner et parallellogram.2. Clamping device according to claim 1, characterized in that the joint points (7) of the clamping arm (2) 3 the pivot point (8) of the clamping plate (H) and the joint points (9,10) of the parallel strut (6) form a parallelogram. 3. Klemapparat ifølge krav 1 eller 2, karakterisert ved at klemarmén (2) er L-formet, og at klembakken (4) ved sitt midtpunkt er lagret til den frie enden av L'ens horisontale del. H. Klemapparat ifølge et eller flere av kravene fra 1-3, karakterisert ved at klembakken (4) er sammenbundet, foruten ved L'ens 'frie ende, også ved dens motstående ende, og at det sistnevnte ledd (5) er fjærende.3. Clamping device according to claim 1 or 2, characterized in that the clamping arm (2) is L-shaped, and that the clamping tray (4) at its midpoint is stored to the free end of the L's horizontal part. H. Clamping device according to one or more of the claims from 1-3, characterized in that the clamping tray (4) is connected, apart from the L's' free end, also at its opposite end, and that the latter link (5) is springy.
NO771534A 1976-05-03 1977-05-02 CLAMPING UNIT FOR TRUCK. NO771534L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI761236A FI57921C (en) 1976-05-03 1976-05-03 KLAEMAGGREGAT FOER TRUCK

Publications (1)

Publication Number Publication Date
NO771534L true NO771534L (en) 1977-11-04

Family

ID=8509965

Family Applications (1)

Application Number Title Priority Date Filing Date
NO771534A NO771534L (en) 1976-05-03 1977-05-02 CLAMPING UNIT FOR TRUCK.

Country Status (8)

Country Link
DE (1) DE2719780A1 (en)
FI (1) FI57921C (en)
FR (1) FR2350298A1 (en)
GB (1) GB1552533A (en)
IT (1) IT1080912B (en)
NL (1) NL7704832A (en)
NO (1) NO771534L (en)
SE (1) SE413662B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2621214A1 (en) * 1987-10-05 1989-04-07 Fourcade Andre Rotary handling clamp

Also Published As

Publication number Publication date
FR2350298A1 (en) 1977-12-02
SE413662B (en) 1980-06-16
DE2719780A1 (en) 1977-11-24
FI761236A (en) 1977-11-04
SE7704819L (en) 1977-11-04
FI57921B (en) 1980-07-31
NL7704832A (en) 1977-11-07
FR2350298B3 (en) 1980-03-07
GB1552533A (en) 1979-09-12
IT1080912B (en) 1985-05-16
FI57921C (en) 1980-11-10

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