DK149151B - LIFTING PLATFORM FOR TRUCK LOADERS - Google Patents
LIFTING PLATFORM FOR TRUCK LOADERS Download PDFInfo
- Publication number
- DK149151B DK149151B DK593383A DK593383A DK149151B DK 149151 B DK149151 B DK 149151B DK 593383 A DK593383 A DK 593383A DK 593383 A DK593383 A DK 593383A DK 149151 B DK149151 B DK 149151B
- Authority
- DK
- Denmark
- Prior art keywords
- platform
- lifting platform
- truck
- connecting link
- hinged
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/44—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading having a loading platform thereon raising the load to the level of the load-transporting element
- B60P1/4414—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading having a loading platform thereon raising the load to the level of the load-transporting element and keeping the loading platform parallel to the ground when raising the load
- B60P1/445—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading having a loading platform thereon raising the load to the level of the load-transporting element and keeping the loading platform parallel to the ground when raising the load the loading platform, when not in use, being stored under the load-transporting surface
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Methods And Devices For Loading And Unloading (AREA)
Description
i 149151in 149151
Opfindelsen angår en løfteplatform til et læsseapparat til lastvogne og af den art, hvor platformen består af to dele, hvoraf den ene del er forbindelig med læsseapparatet, og den anden del er hængslet til den første del omkring en svingakse på en 5 sådan måde, at den anden del kan svinges tilnærmelsesvis 180°, således at den anden del vender sin lastflade mod den første dels lastflade.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a lifting platform for a truck loading apparatus and of the kind in which the platform consists of two parts, one part of which is compatible with the loading apparatus and the other part hinged to the first part about a pivot axis in such a way that the second part can be pivoted approximately 180 ° so that the second part faces its loading surface against the loading surface of the first part.
Løfteplatforme af denne art anvendes i forbindelse med læsseapparater, der omfatter en slæde, som er forskydelig i forhold 10 til lastvognens lad og under samt stort set parallelt med dette.Lifting platforms of this kind are used in connection with loading devices which comprise a carriage which is slidable in relation to the truck's bottom and under and substantially parallel to it.
I bortstuvet stilling befinder den anden platformsdel sig i sin svingede stilling, altså hvor den vender sin lastflade mod den. første dels lastflade, og slæden er trukket så langt frem under vognladdet, at den akse, omkring hvilken løfteplatformens to dele 15 kan svinges i forhold til hinanden,befinder sig umiddelbart under bagkanten af lastvognsladdet. En sådan foldelig løfteplatform tillader derfor at der undgås bagud udragende dele i forhold til lastvognen, hvilket er af stor betydning, idet der findes en maksimal længde for lastvogne. Når læsseapparatet skal anvendes, 20 skydes slæden bagud i forhold til lastvognen, indtil den sammen foldede løfteplatform går fri af bagkanten af laddet. Nu kan den indfoldede anden del svinges ud i forlængelse af den første del af løfteplatformen, hvorved denne har den længde set i lastbilens længderetning, som er fornøden til optagelse af det gods, der 25 skal losses og lastes. Ved denne kendte konstruktion bevæges løfteplatformen ved hjælp af løftearme, som er forbundet med slæden og med den fremefter i lastvognens længderetning vendende side af løfteplatformen. Tidligere har man kunnet klare sig med forholdsvis lette løfteplatformskonstruktioner af den nævnte art, 30 og f.eks. fremstillet af aluminium, således at den nævnte anden platformsdel kan svinges manuelt fra den stilling, hvori den befinder sig i flugt med den første platformsdel, og til den stilling, hvor den befinder sig svinget 180° i forhold til denne.In the stowed position, the other platform portion is in its pivoted position, ie where it faces its loading surface. the first part of the loading surface, and the carriage is pulled so far forward under the carriage load that the axis around which the two parts 15 of the lifting platform can be pivoted relative to each other is immediately below the rear edge of the truck load. Such a folding lifting platform therefore permits rearwardly projecting parts to be avoided relative to the truck, which is of great importance, as there is a maximum length for trucks. When the loading device is to be used, the carriage is pushed backwards relative to the truck until the folded lifting platform is released from the rear edge of the cargo. Now the folded-in second part can be swung out in extension of the first part of the lifting platform, the latter having the length seen in the longitudinal direction of the truck, which is necessary for the picking up of the goods to be unloaded and loaded. In this known construction, the lifting platform is moved by means of lifting arms connected to the carriage and to the side of the lifting platform facing the longitudinal direction of the truck. In the past, relatively easy lifting platform structures of the kind mentioned have been able to cope, 30 and e.g. made of aluminum so that said second platform portion can be manually pivoted from the position in which it is in alignment with the first platform portion and to the position in which it is pivoted 180 ° relative to it.
De stedse stigende krav til kapaciteten af læsseapparater af 35 den her omhandlede art kræver imidlertid stedse stærkere kon struktioner, hvad angår selve løfteplatformen,.og det er formålet med den foreliggende opfindelse at anvise en løfteplatform af den nævnte art, der kan udformes af et solidt materiale og 149151 2 med stor størrelse, og som alligevel er let manøvrerbar, og dette formål opnås ved en løfteplatform af den indledningsvis nævnte art, der ifølge opfindelsen er ejendommelig ved en cylindermekanisme, der ved sin ene ende er hængslet til den ene platforms-5 del, og hvis anden ende er hængslet til den ene ende af et første forbindelsesled, hvis anden ende er hængslet til den anden platformsdel ved et sted af denne, der befinder sig i afstand fra svingningsaksen og fra den anden platformsdels lastflade, hvorhos et andet forbindelsesled ved sin ene ende er hæng-10 slet til det første forbindelsesled mellem dettes ender, og ved sin anden ende er hængslet til den ene platformsdel. En sådan løfteplatform medfører den fordel, at den kan fremstilles stor og kraftig, idet den ifølge opfindelsen foreslåede cylindermekanisme med tilhørende forbindelsesled på en simpel og effektiv 15 måde tillader, at cylindermekanismen svinger den anden platforms del.However, the ever-increasing demands on the capacity of loaders of the kind in question here require ever-stronger constructions as to the lifting platform itself, and it is the object of the present invention to provide a lifting platform of the said kind which can be formed of a solid large size material and yet easily maneuverable, and this object is achieved by a lifting platform of the kind mentioned initially, which according to the invention is characterized by a cylinder mechanism hinged at one end to one platform-5. part, and the other end of which is hinged to one end of a first connecting link, the other end of which is hinged to the second platform part at a location thereof spaced from the pivot axis and from the load surface of the second platform part, wherein a second connecting link at one end is hinged to the first connecting link between its ends, and at its other end is hinged to one platform door. el. Such a lifting platform has the advantage that it can be manufactured large and powerful, the proposed cylinder mechanism and associated connecting mechanism according to the invention, in a simple and effective way, allowing the cylinder mechanism to swing the part of the other platform.
En foretrukket udførelsesform for løfteplatformen ifølge opfindelsen er ejendommelig ved, at det andet forbindelsesled er vinkelformet. Herved opnås det, at de to platformsdele kan ud-20 formes med dørkplader, der i løfteplatformens udfoldede stilling kan have anlæg mod hinanden på det sted, hvor den ifølge opfindelsen foreslåede svingemekanisme er anbragt.A preferred embodiment of the lifting platform according to the invention is characterized in that the second connecting link is angular. Hereby it is achieved that the two platform parts can be formed with floor plates which, in the unfolded position of the lifting platform, may abut against each other at the place where the swing mechanism proposed according to the invention is arranged.
Opfindelsen skal herefter forklares nærmere under henvisning til tegningen, hvor 25 fig. 1 skematisk viser en udførelsesform for løfteplatformen ifølge den foreliggende opfindelse vist i udfoldet stilling, fig. 2 løfteplatformen ifølge fig. 1 i delvis udfoldet tilstand, 30 fig. 3 løfteplatformen i fig. 1 i helt udfoldet tilstand, fig. 4,5 og 6 i stærkt forstørret målestok en del af løfteplatformen i de i fig. 1, 2 og 3 viste stillinger.The invention will now be explained in more detail with reference to the drawing, in which FIG. 1 shows schematically an embodiment of the lifting platform according to the present invention shown in unfolded position; FIG. 2 shows the lifting platform according to FIG. 1 in partially unfolded condition; FIG. 3 shows the lifting platform of FIG. 1 in a fully unfolded state; FIG. 4.5 and 6, on a greatly enlarged scale, part of the lifting platform in the Figs. 1, 2 and 3.
På tegningen betegner 1 en løfteplatform til et læsseapparat til lastvogne. Platformen 1 består af to dele 2 og 3, hvoraf 35 den ene del 2 er forbindelig med det tilhørende læsseapparat, idet denne del ved sin forende 4 er forsynet med en konsolkonstruktion 5 ved hver side med huller 6 og 7 til montering af løfteplatformen i to løftearme til det pågældende læsseapparat.In the drawing, 1 denotes a lifting platform for a truck loading device. The platform 1 consists of two parts 2 and 3, of which one part 2 is connectable to the associated loading apparatus, this part at its front end 4 being provided with a bracket construction 5 at each side with holes 6 and 7 for mounting the lifting platform in two lifting arms for the particular loading device.
3 14915 13 14915 1
Selve læsseapparatet er ikke vist, men består af en slæde, hvortil løftearmene er forbundet, og som er forskydeligt lejret under laddet til en lastvogn, således at slæden kan forskydes i lastvognens længderetning. For at opnå en forholdsvis kort slaglængde 5 af den pågældende slæde er de to platformsdele 2 og 3 hængslet til hinanden omkring en svingakse 8, nemlig således at den anden . platformsdel 3 fra den i fig. 1 viste stilling kan svinges ca.The loading device itself is not shown, but consists of a carriage to which the lifting arms are connected and which is slidably mounted under the load to a truck so that the carriage can be displaced in the longitudinal direction of the truck. In order to obtain a relatively short stroke 5 of the carriage in question, the two platform parts 2 and 3 are hinged to one another around a pivot axis 8, namely the other. platform portion 3 from the one shown in FIG. 1 can be pivoted approx.
180°, d.v.s. til den i fig. 3 viste stilling, hvor de to platformsdele vender deres lastflader mod hinanden. Derved kommer plat-10 formen til at få en kort længde, og læsseapparatets slæde kan gi ves en tilsvarende kort slaglængde, hvorved løfteplatformen kan skydes ind under den tilhørende lastvogns lad, uden at der findes udragende dele. Følgelig kan længden af lastvognens lad vælges til den for sådanne vogne maksimalt tilladelige længde, og sam-15 tidigt kan slædens slaglængde gøres tilstrækkelig kort til, at hele læsseapparatet med løfteplatformen kan optages under laddet mellem lastvognens bagtøj og bagkanten af laddet.180 °, i.e. to that of FIG. 3, where the two platform parts face their load faces. In this way, the platform 10 will have a short length and the sled of the loading device can be given a correspondingly short stroke, whereby the lifting platform can be slid under the load of the associated truck without any projecting parts. Accordingly, the length of the truck's load can be selected to the maximum permissible length for such wagons, and at the same time, the length of the carriage can be made sufficiently short that the entire loading device with the lifting platform can be accommodated under the load between the rear of the truck and the rear edge of the load.
Begge platformsdelene 2 og 3 er på deres undersider forsynet med vanger, der skematisk er vist på tegningen og er forsynet 20 med henvisningsbetegnelserne 9 og 10. Ved den i fig. 1 viste udfoldede stilling af platformen ligger disse vanger stukt an imod hinanden lodret under svingaksen 8, således at der opnås en stabil konstruktion.Both platform members 2 and 3 are provided on their undersides with schematically shown schematically in the drawing and are provided with reference numerals 9 and 10. In the embodiment shown in FIG. 1, these levers abut each other vertically beneath the pivot axis 8 so that a stable construction is obtained.
Til let svingning af den anden del 3 i forhold til den 25 første del 2 er løfteplatformen forsynet med en svingemekanis- me, der består af en cylindermekanisme 12, f.eks. en hydraulisk donkraft, hvis ene ende ved hjælp af et hængsel 14 er hængslet til platformsdelen 2, og hvis stempelstang 13 ved hjælp af et hængsel 15 er hængslet til den ene ende af et første forbin-30 delsesled 16. Den anden ende af det første forbindelsesled 16 er ved hjælp af et hængsel 17 hængslet til en konsol 18 på den anden platformsdel 3. Dette hængsel 17 befinder sig i afstand fra svingningsaksen 8 samt i afstand fra den anden platformsdel 3's lastflade. Ved den på tegningen viste udførelsesform befin-35 der hængslet 17 sig på linie med underkanten af en af platforms delen 3's vanger 9. Til den viste svingmekanisme hører der et andet forbindelsesled 20, der ved sin ene ende ved hjælp af et hængsel 21 er hængslet til det første forbindelsesled 16 mellem 4 149151 dettes ender, der på tegningen er repræsenteret ved hængslerne 15 og 17. Den anden ende af det andet forbindelsesled 20 er ved hjælp af et hængsel 22 forbundet med platformsdelen 2. Som det fremgår af fig. 1, er længderne af de to forbindelsesled 5 16 og 20 samt disses hængselspunkter samt hængselspunkterne for cylindermekanismen 12 valgt på en sådan måde, at størstedelen af cylinderen 12's kraft ved begyndende svingning af den anden platformsdel 3 giver et forholdsvis stort moment, nemlig stort set cylindermekanismens kraft multipliceret med afstanden mellem 10 svingaksen 8 og hængslet 17. Der står altså et stort moment til rådighed ved begyndende svingning af den anden platformsdel 3 , hvilket har stor betydning, idet det netop er i denne stilling, det største moment er nødvendigt. Efterhånden som den anden platformsdel 3 løftes, formindskes momentet, og når den anden del 15 3 står lodret, som vist i fig. 2 og 4, vil det ses, at det svingmoment, der påtrykkes den anden del 3, er forholdsvis lille, idet det nu stort set påtrykkes i kraft af det moment, som det første forbindelsesled 16 underkastes fra stempelstangen 13's kraft og som følge af forbindelsesleddet 16‘s drejning omkring 20 hængslet 22. Når den anden platformsdel 3 er svinget til den foldede stilling, som vist i fig. 3, og påny skal svinges tilbage til den i fig. 1 viste stilling, står der derimod igen et . forholdsvis stort moment til rådighed, idet stempelstangen 13 nu vil søge at svinge det første forbindelsesled 16 mod urviser-25 retningen, og da dette forbindelsesled 16 står stort set vinkelret på cylindermekanismens længderetning, og det andet forbindelsesled 20 forløber stort set parallelt med stempelstangen 13, vil forbindelsesleddet 16’s hængsel 17 blive påvirket med en kraft til venstre i fig. 3, der stort set svarer til halvdelen af cy-30 lindermekanismens kraft, idet afstanden mellem hængslerne 15 og . 21 er tilnærmelsesvis halvt så stor som afstanden mellem hængslerne 21 og 17. Ved begyndende tilbagesvingning står der således også et stort moment til rådighed, hvilket også skyldes, at hængslet 17 nu befinder sig stort set lodret over sving-35 ningsaksen 8.For easy pivoting of the second part 3 relative to the first part 2, the lifting platform is provided with a pivoting mechanism consisting of a cylinder mechanism 12, e.g. a hydraulic jack, one end of which is hinged to the platform portion 2 by means of a hinge 14 and whose piston rod 13 is hinged to one end of a first connecting member 16. The other end of the first connecting link 16 is hinged to a bracket 18 on the second platform part 3 by means of a hinge 17. This hinge 17 is at a distance from the pivot axis 8 and at a distance from the load surface of the second platform part 3. In the embodiment shown in the drawing, the hinge 17 is in line with the lower edge of one of the platform members of the platform 3. The swinging mechanism shown comprises a second connecting link 20 which is hinged at one end by a hinge 21 to the first connecting link 16 between its ends, represented in the drawing by the hinges 15 and 17. The other end of the second connecting link 20 is connected to the platform part 2 by means of a hinge 22. 1, the lengths of the two connecting links 5 16 and 20 and their hinge points as well as the hinge points of the cylinder mechanism 12 are selected in such a way that most of the force of the cylinder 12 upon initial oscillation of the second platform part 3 gives a relatively large torque, namely that of the cylinder mechanism. force multiplied by the distance between the pivot axis 8 and the hinge 17. Thus, a large torque is available at the initial pivot of the second platform part 3, which is of great importance, since it is precisely in this position that the greatest torque is needed. As the second platform portion 3 is lifted, the torque decreases and when the second portion 15 3 stands vertical, as shown in FIG. 2 and 4, it will be seen that the torque applied to the second part 3 is relatively small as it is now largely applied by virtue of the moment that the first connecting member 16 is subjected to the force of the piston rod 13 and due to the connecting link. 16's rotation about 20 hinged 22. When the second platform portion 3 is pivoted to the folded position, as shown in FIG. 3, and must be swung back to the one shown in FIG. 1, on the other hand, stands again. relatively large torque is available as the piston rod 13 will now seek to pivot the first connecting link 16 counterclockwise and since this connecting link 16 is substantially perpendicular to the longitudinal direction of the cylinder mechanism and the second connecting link 20 extends substantially parallel to the piston rod 13. for example, the hinge 17 of the connector 16 will be actuated by a force to the left of FIG. 3, which is roughly equal to half the force of the cylinder mechanism, the distance between the hinges 15 and. 21 is approximately half the distance between the hinges 21 and 17. Thus, a large torque is available at the initial reversal, which is also due to the fact that the hinge 17 is now substantially vertical over the pivot axis 8.
I fig. 1-3 er svingemekanismen vist skematisk, og det vil ses, at det andet forbindelsesled 20 i den i fig. 3 viste stilling vil have tilbøjelighed til at strække sig ind over sving- 5 14915 1 ningsaksen 8. Derfor kan der ved anvendelsen af et retliniet led, som det andet forbindelsesled 20, kræves små kantudskæringer i dørkplader 25 og 26, der udgør platformsdelenes læsseflader, jfr. fig. 4. Ved at udforme det andet forbindelsesled 20 5 lidt krumt, således som vist i fig. 4,5 og 6, kan det opnås, at dette andet forbindelsesled i den i fig. 6 viste stilling af platformen strækker sig udenom svingningsaksen 8 og følgelig også udenom dørkpladekanterne, således at disse på dette sted kan udformes således, at de i den i fig. 1 viste udfoldede stil-10 ling ligger stukt an mod hinanden.In FIG. 1-3, the pivot mechanism is shown schematically, and it will be seen that the second connector 20 in the embodiment shown in FIG. 3 will tend to extend over the pivot axis 8. Therefore, when using a rectilinear joint, such as the second connecting link 20, small edge cuts in die plates 25 and 26 which make up the loading faces of the platform members may be required. cf. FIG. 4. By forming the second connecting link 20 5 slightly curved, as shown in FIG. 4,5 and 6, it can be achieved that this second link in the embodiment of FIG. 6, the position of the platform extends beyond the pivot axis 8 and, consequently, also beyond the floor plate edges, so that at this point they can be designed so that in the position shown in FIG. 1, the folded position shown in FIG.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK593383A DK149151C (en) | 1983-12-22 | 1983-12-22 | LIFTING PLATFORM FOR TRUCK LOADERS |
| EP19850900451 EP0165982A1 (en) | 1983-12-22 | 1984-12-20 | Lifting platform for loading devices for lorries |
| PCT/DK1984/000121 WO1985002820A1 (en) | 1983-12-22 | 1984-12-20 | Lifting platform for loading devices for lorries |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK593383 | 1983-12-22 | ||
| DK593383A DK149151C (en) | 1983-12-22 | 1983-12-22 | LIFTING PLATFORM FOR TRUCK LOADERS |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK593383D0 DK593383D0 (en) | 1983-12-22 |
| DK593383A DK593383A (en) | 1985-06-23 |
| DK149151B true DK149151B (en) | 1986-02-17 |
| DK149151C DK149151C (en) | 1986-08-25 |
Family
ID=8146266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK593383A DK149151C (en) | 1983-12-22 | 1983-12-22 | LIFTING PLATFORM FOR TRUCK LOADERS |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0165982A1 (en) |
| DK (1) | DK149151C (en) |
| WO (1) | WO1985002820A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4400502A1 (en) * | 1994-01-11 | 1995-07-13 | Gerd Baer | Swivelling mechanism for part of sideboard and tailboard |
| DE4430437B4 (en) * | 1994-08-29 | 2004-01-29 | Dautel Gmbh | Loading device for truck bodies with a tail lift |
-
1983
- 1983-12-22 DK DK593383A patent/DK149151C/en not_active IP Right Cessation
-
1984
- 1984-12-20 WO PCT/DK1984/000121 patent/WO1985002820A1/en not_active Ceased
- 1984-12-20 EP EP19850900451 patent/EP0165982A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DK593383D0 (en) | 1983-12-22 |
| DK593383A (en) | 1985-06-23 |
| DK149151C (en) | 1986-08-25 |
| EP0165982A1 (en) | 1986-01-02 |
| WO1985002820A1 (en) | 1985-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |