ES2539537B1 - Fork pallet truck - Google Patents

Fork pallet truck Download PDF

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Publication number
ES2539537B1
ES2539537B1 ES201431938A ES201431938A ES2539537B1 ES 2539537 B1 ES2539537 B1 ES 2539537B1 ES 201431938 A ES201431938 A ES 201431938A ES 201431938 A ES201431938 A ES 201431938A ES 2539537 B1 ES2539537 B1 ES 2539537B1
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Spain
Prior art keywords
fork
sector
truck
lifting
tracks
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Active
Application number
ES201431938A
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Spanish (es)
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ES2539537A1 (en
Inventor
Luis Miguel MARGOLLES ROMERO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MARGOLLES LOGISTICS S L
MARGOLLES LOGISTICS SL
Original Assignee
MARGOLLES LOGISTICS S L
MARGOLLES LOGISTICS SL
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Priority to ES201431938A priority Critical patent/ES2539537B1/en
Publication of ES2539537A1 publication Critical patent/ES2539537A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00Accessories or details specially adapted for hand carts
    • B62B5/02Accessories or details specially adapted for hand carts providing for travelling up or down a flight of stairs
    • 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
    • B66F9/07572Propulsion arrangements
    • B66F9/07577Propulsion arrangements not supported by wheels, e.g. tracks or air cushions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/04Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
    • B62B3/06Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground
    • B62B3/0612Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground power operated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D55/00Endless track vehicles
    • B62D55/06Endless track vehicles with tracks without ground wheels
    • B62D55/075Tracked vehicles for ascending or descending stairs, steep slopes or vertical surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2301/00Wheel arrangements; Steering; Stability; Wheel suspension
    • B62B2301/25Wheel arrangements; Steering; Stability; Wheel suspension characterised by the ground engaging elements, e.g. wheel type
    • B62B2301/256Wheel arrangements; Steering; Stability; Wheel suspension characterised by the ground engaging elements, e.g. wheel type by using endless belts

Abstract

Transpaleta (1) de horquilla, del tipo que comprenden una horquilla (2) para soporte y elevación de la carga dispuesta en un palet, unos medios de elevación de dicha horquilla (2), medios de rodadura guiada/direccional y medios de manejo, pudiendo ser el accionamiento manual o eléctrico, en la cual los medios de rodadura comprenden sendas orugas (4) dispuestas bajo los brazos (5) de la horquilla (2); comprendiendo dichas orugas (4), al menos, un sector frontal (7) elevable.Fork pallet truck (1), of the type comprising a fork (2) for supporting and lifting the load arranged on a pallet, lifting means of said fork (2), guided / directional rolling means and handling means, it may be the manual or electric drive, in which the rolling means comprise tracks (4) arranged under the arms (5) of the fork (2); said caterpillars (4) comprising at least one front sector (7) that can be lifted.

Description

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DESCRIPCIONDESCRIPTION
Transpaleta de horquilla.Fork pallet truck.
OBJETO DE LA INVENCIONOBJECT OF THE INVENTION
La presente invention se refiere a una transpaleta de horquilla que dispone de una configuration mejorada para remontar obstaculos tales como bordillos, o ser capaz de trabajar en otros terrenos irregulares, como en obras.The present invention relates to a fork pallet truck that has an improved configuration to overcome obstacles such as curbs, or to be able to work in other irregular terrain, such as in works.
ANTECEDENTES DE LA INVENCIONBACKGROUND OF THE INVENTION
En la actualidad se conocen unas transpaletas de horquilla, que comprenden una horquilla para soporte y elevation de la carga posicionada en palets, unos medios de elevation de dicha horquilla, medios de rodadura guiada/direccional y medios de manejo, tlpicamente una lanza de mando o un puesto de gobierno (transpaletas tripuladas), pudiendo ser el accionamiento manual o electrico mediante motores con una fuente de alimentation autonoma recargable.At present, fork pallet trucks are known, comprising a fork for supporting and lifting the load positioned on pallets, lifting means of said fork, guided / directional rolling means and handling means, typically a control lance or a position of government (manned pallet trucks), being able to be the manual or electric drive by means of motors with a rechargeable autonomous power supply.
Las transpaletas de horquilla, ya sea de accionamiento manual o electrico, utilizadas en almacenes estan disenadas para trabajar sobre firmes regulares y bien pavimentados, sin desniveles abruptos, por lo que estan provistas de ruedas extremas que se ubican bajo los extremos de la horquilla y otra rueda central en la zona opuesta, donde puede ubicarse una lanza de mando. Estas ruedas son de pequeno diametro para permitir que la horquilla se situe lo mas cercana al suelo posible, y en todo caso a menor altura que las entrantes de los palets a acarrear. Esto supone un inconveniente, ya que no pueden subir pequenos desniveles del tipo de bordillos y escalones sueltos, lo que limita mucho, e incluso impide su utilization en entornos no tan bien pavimentados, como en muelles de descarga, en obras o en descargas urbanas, esto es, en comercios/viviendas o similares, urbanos, fundamentalmente a pie de calle.The fork pallet trucks, either manually or electrically operated, used in warehouses are designed to work on regular and well paved roads, without steep slopes, so they are provided with extreme wheels that are located under the ends of the fork and other central wheel in the opposite area, where a command lance can be located. These wheels are of small diameter to allow the fork to be located as close to the ground as possible, and in any case at a lower height than the entrances of the pallets to be carried. This is an inconvenience, since small slopes of the type of curbs and loose steps cannot be climbed, which limits a lot, and even prevents their use in environments not so well paved, such as in docks, in works or in urban discharges, that is, in shops / homes or similar, urban, mainly at street level.
Con el fin de evitar este inconveniente, se conocen transpaletas de obra, donde las ruedas extremas estan montadas en unas porciones salientes laterales del bastidor de la transpaleta, y son de gran tamano. Esta configuracion ciertamente facilita la subida de estos pequenos desniveles, pero obligan a la transpaleta a adoptar una anchura excesiva, que impide o dificulta su utilizacion en el interior de almacenes, donde la anchura de los pasillos de almacenamiento, necesaria por optimization del espacio, es lo mas reducida posible.In order to avoid this inconvenience, construction pallet trucks are known, where the extreme wheels are mounted on lateral protruding portions of the pallet truck frame, and are large in size. This configuration certainly facilitates the rise of these small slopes, but they force the pallet truck to adopt an excessive width, which prevents or hinders its use inside warehouses, where the width of the storage aisles, necessary for space optimization, is as small as possible.
Tambien se conocen unas transpaletas de obra con orugas igualmente laterales, esto es, que sobresalen de la proyeccion vertical de los brazos de la horquilla. Estas orugas laterales podrlan conseguir la altura suficiente para salvar los desniveles descritos, pero tienen los mismos inconvenientes de exceso de anchura.Work pallet trucks with similarly lateral tracks are also known, that is, protruding from the vertical projection of the fork arms. These lateral tracks could achieve sufficient height to overcome the unevenness described, but they have the same disadvantages of excess width.
DESCRIPCION DE LA INVENCIONDESCRIPTION OF THE INVENTION
La transpaleta de la invencion tiene una constitucion que soluciona los inconvenientes citados. Se trata de una transpaleta del tipo que comprenden una horquilla para soporte y elevacion de la carga dispuesta en un palet, unos medios de elevacion de dicha horquilla, normalmente pistones o cremalleras, medios de rodadura guiada/direccional y medios de manejo, tlpicamente una lanza, consola y/o puesto de gobierno, pudiendo ser el accionamiento manual o electrico. Como medios de rodadura guiada/direccional se entiende que se trata de medios de rodadura susceptibles de permitir el guiado y/o cambio de direction al ser manejados por unThe pallet truck of the invention has a constitution that solves the aforementioned drawbacks. It is a pallet truck of the type comprising a fork for supporting and lifting the load arranged on a pallet, lifting means of said fork, usually pistons or zippers, guided / directional rolling means and handling means, typically a lance , console and / or position of government, being able to be the manual or electric drive. As guided / directional rolling means it is understood that these are rolling means capable of allowing guidance and / or change of direction when driven by a
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operario o robotizadamente, para dirigir la transpaleta.Operatively or robotically, to steer the pallet truck.
De acuerdo con la invention, los medios de rodadura comprenden sendas orugas dispuestas bajo los brazos de la horquilla, comprendiendo dichas orugas, al menos, un sector frontal elevable. La elevation de dicho sector frontal de las rodilleras, a la hora de atacar un desnivel, permitira remontar el mismo con la cooperation de una fuerza de traction o empuje adecuada, razon por la cual, en la transpaleta de la invencion preferentemente las orugas contaran con un accionamiento, idealmente motores electricos.According to the invention, the rolling means comprise two tracks arranged under the arms of the fork, said tracks comprising at least one elevable front section. The elevation of said front section of the knee pads, when attacking an unevenness, will allow it to be overcome with the cooperation of a suitable traction force or thrust, which is why, in the pallet truck of the invention, preferably the tracks will have a drive, ideally electric motors.
Las rodilleras comprenden rodillos que sustentan rodantemente las orugas minimizando las perdidas por friccion.The knee pads comprise rollers that support the tracks while minimizing friction losses.
DESCRIPCION DE LOS DIBUJOSDESCRIPTION OF THE DRAWINGS
La figura 1.- Muestra una vista lateral de la transpaleta de la invencion con la horquilla en position inferior, y con el sector frontal elevable en position inferior para la introduction bajo un palet.Figure 1.- Shows a side view of the pallet truck of the invention with the fork in the lower position, and with the front section elevable in the lower position for introduction under a pallet.
La figura 2.- Muestra una vista en perspectiva de la transpaleta de la invencion enFigure 2.- Shows a perspective view of the pallet truck of the invention in
configuracion similar a la mostrada en la figura 1.configuration similar to that shown in figure 1.
La figura 3.- Muestra una vista lateral de la transpaleta de la invencion con la horquilla en posicion elevada para traslado de un palet cargado, con el sector frontal elevable en posicion elevada lo que le permite remontar obstaculos tales como bordillos y similares.Figure 3.- It shows a side view of the pallet truck of the invention with the fork in an elevated position for the transfer of a loaded pallet, with the front section lifted in an elevated position which allows it to overcome obstacles such as curbs and the like.
La figura 4.- Muestra una vista en perspectiva de la transpaleta de la invencion enFigure 4.- Shows a perspective view of the pallet truck of the invention in
configuracion similar a la mostrada en la figura 3.configuration similar to that shown in figure 3.
La figura 5 muestra otra vista lateral de la transpaleta de la invencion con la horquilla en posicion elevada para traslado de un palet cargado, y con el sector frontal elevable en posicion elevada mediante unas uniones articuladas entre los brazos de la horquilla y los sectores frontales de cada oruga.Figure 5 shows another side view of the pallet truck of the invention with the fork in an elevated position for the transfer of a loaded pallet, and with the front section lifted in an elevated position by means of articulated joints between the fork arms and the front sectors of Each caterpillar
REALIZACION PREFERENTE DE LA INVENCIONPREFERRED EMBODIMENT OF THE INVENTION
La transpaleta (1) de horquilla de la invencion es del tipo que comprenden una horquilla (2)The fork pallet truck (1) of the invention is of the type comprising a fork (2)
para soporte y elevacion de la carga dispuesta en un palet, no representado, unos medios defor support and lifting of the load arranged on a pallet, not shown, means of
elevacion de dicha horquilla (2), medios de rodadura guiada/direccional y medios de manejo, usualmente una lanza, no representada, o una consola (3) como se muestra en este ejemplo no limitativo de la invencion.elevation of said fork (2), guided / directional rolling means and handling means, usually a lance, not shown, or a console (3) as shown in this non-limiting example of the invention.
De acuerdo con la invencion, los medios de rodadura guiada/direccional comprenden sendas orugas (4) dispuestas bajo los brazos (5) de la horquilla (2), comprendiendo dichas orugas (4), al menos, un sector frontal (7) elevable.According to the invention, the guided / directional rolling means comprise tracks (4) arranged under the arms (5) of the fork (2), said tracks (4) comprising at least one front section (7) that can be lifted. .
De esta forma, a la hora de acometer un desnivel o bordillo (10) el sector frontal en la posicion elevada, tal como se ve en la figura 3 permite remontar dicho desnivel. Ademas, en este ejemplo de la invencion las orugas (4) disponen de medios de accionamiento lo cual coopera aun mas en la remontada del desnivel. Estos medios de accionamiento de las orugas (4) comprenden sendas ruedas o engranajes cabeceros (8), accionados a su vez por motores electricos (9) alimentados por una fuente de alimentation, no representada, dispuesta en unaIn this way, when undertaking an unevenness or curb (10), the frontal sector in the elevated position, as seen in Figure 3, allows the slope to be overcome. In addition, in this example of the invention the tracks (4) have drive means which cooperates even more in the rise of the slope. These means for driving the tracks (4) comprise two wheels or head gears (8), driven in turn by electric motors (9) powered by a power supply, not shown, arranged in a
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carcasa posterior (11), entendiendo como posterior ubicada en la parte extrema contraria a las puntas de los brazos (5). Dicha fuente de alimentacion comprende unas baterlas recargables.rear housing (11), understood as rear located at the end opposite to the tips of the arms (5). Said power supply comprises rechargeable batteries.
Las orugas (4) se encuentran montadas en rodilleras (6), las cuales tendran una articulacion (12) que define el sector frontal (7) elevable de cada oruga (4)The tracks (4) are mounted on knee pads (6), which will have an articulation (12) that defines the front sector (7) that can be lifted from each track (4)
Adicionalmente, se ha previsto la disposition de unos medios automaticos de elevation del sector frontal (7) elevable. Dichos medios automaticos de elevacion del sector frontal (7) elevable comprenden pistones (8) (ver figs 3 y 4) alimentados por una central hidraulica, no representada, alimentada por la fuente de alimentacion. Igualmente se encuentran comprendidos como medios alternativos o complementarios otros cualquiera pertenecientes al estado de la tecnica, por ejemplo cadenas y/o cables elevadores accionados por motores, no representados, alimentados a su vez por la fuente de alimentacion. Tambien complementaria o alternativamente podrlan comprender resortes, no representados, que en position de reposo mantengan elevado el sector frontal (7), y que al bajar la horquilla (2) esta empujen al sector frontal (7) y provoquen su descenso para permitir la insertion bajo el palet y simultaneamente la carga de dichos resortes (compresion o elongation), de forma que al volver a elevar la horquilla (2) los resortes recuperen la posicion de reposo y el sector frontal (7) por tanto se eleve nuevamente.Additionally, the provision of automatic lifting means of the elevating front sector (7) is provided. Said automatic lifting means of the elevable front sector (7) comprise pistons (8) (see figs. 3 and 4) fed by a hydraulic power plant, not shown, fed by the power supply. Likewise, any other belonging to the state of the art, for example chains and / or lifting cables driven by motors, not represented, in turn fed by the power supply, are also included as alternative or complementary means. Also, in addition or alternatively, they could include springs, not shown, that maintain the front sector (7) in a resting position, and that when lowering the fork (2), push the front sector (7) and cause its descent to allow insertion under the pallet and simultaneously the loading of said springs (compression or elongation), so that when the fork is raised again (2) the springs recover the resting position and the frontal sector (7) therefore rises again.
Otra posible realization de los medios automaticos de elevacion del sector frontal (7) de las orugas (4) se muestran en la figura 5, y comprenden unas uniones articuladas que se encuentran relacionando los brazos (5) de la horquilla (2) y los sectores frontales (7) de cada oruga (4) y/o las rodilleras (6) correspondientes, de forma que la elevacion de la horquilla implique la elevacion de los sectores frontales (7) de las orugas (4). Estas uniones articuladas pueden comprender patines (18) salientes lateralmente de las rodilleras (6), y que discurran por gulas (19) longitudinales de los brazos (5), como se muestra en la figura, absorbiendo el movimiento de los patines (18) en las gulas (19) el acortamiento de la longitud de la oruga al elevarse el sector frontal (7)Another possible realization of the automatic lifting means of the front sector (7) of the tracks (4) are shown in Figure 5, and comprise articulated joints that are relating the arms (5) of the fork (2) and the front sectors (7) of each track (4) and / or the corresponding knee pads (6), so that the elevation of the fork implies the elevation of the front sectors (7) of the tracks (4). These articulated joints can comprise skates (18) protruding laterally from the knee pads (6), and running through longitudinal glues (19) of the arms (5), as shown in the figure, absorbing the movement of the skates (18) in the glues (19) the shortening of the length of the track when the frontal sector is raised (7)
Descrita suficientemente la naturaleza de la invention, se indica que la description de la misma y de su forma de realizacion preferente debe interpretarse de modo no limitativo, y que abarca la totalidad de las posibles variantes de realizacion que se deduzcan del contenido de la presente memoria y de las reivindicacionesDescribing sufficiently the nature of the invention, it is indicated that the description thereof and its preferred embodiment should be construed in a non-limiting manner, and that it encompasses all possible embodiments that are deduced from the content of the present specification. and of the claims

Claims (10)

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    ES 2 539 537 A1ES 2 539 537 A1
    REIVINDICACIONES
    1. -Transpaleta (1) de horquilla, del tipo que comprenden una horquilla (2) para soporte y elevacion de la carga dispuesta en un palet, unos medios de elevacion de dicha horquilla (2), medios de rodadura guiada/direccional y medios de manejo, pudiendo ser el accionamiento manual o electrico caracterizada porque los medios de rodadura comprenden sendas orugas (4) dispuestas bajo los brazos (5) de la horquilla (2); comprendiendo dichas orugas (4), al menos, un sector frontal (7) elevable.1.-Fork forklift (1), of the type comprising a fork (2) for support and lifting of the load arranged on a pallet, lifting means of said fork (2), guided / directional rolling means and means of handling, the manual or electric drive being characterized in that the rolling means comprise tracks (4) arranged under the arms (5) of the fork (2); said caterpillars (4) comprising at least one front sector (7) that can be lifted.
  2. 2. -Transpaleta (1) de horquilla segun reivindicacion 1 caracterizada porque las orugas (4) se encuentran accionadas por sendas ruedas o engranajes cabeceros (8) accionados por motores electricos (9) alimentados por una fuente de alimentacion.2.-Fork truck (1) according to claim 1 characterized in that the tracks (4) are driven by two wheels or head gears (8) driven by electric motors (9) powered by a power source.
  3. 3. -Transpaleta (1) de horquilla segun reivindicacion 2 caracterizada porque la fuente de alimentacion comprende baterlas recargables.3. - Fork pallet truck (1) according to claim 2 characterized in that the power supply comprises rechargeable batteries.
  4. 4. -Transpaleta (1) de horquilla segun cualquiera de las reivindicaciones anteriores caracterizada porque las orugas (4) se encuentran montadas en rodilleras (6), provistas de una articulacion (12) que define el sector frontal (7) elevable de cada oruga (4).4.-Fork truck (1) according to any of the preceding claims characterized in that the tracks (4) are mounted on knee pads (6), provided with an articulation (12) defining the front sector (7) of each track (4).
  5. 5. -Transpaleta (1) de horquilla segun cualquiera de las reivindicaciones anteriores5.-Fork truck (1) according to any of the preceding claims
    caracterizada porque comprende medios automaticos de elevacion del sector frontal (7) elevable.characterized in that it comprises automatic lifting means of the front sector (7) that can be lifted.
  6. 6. -Transpaleta (1) de horquilla segun reivindicacion 5 caracterizada porque los medios automaticos de elevacion del sector frontal (7) elevable comprenden pistones (8).6.-Fork lift truck (1) according to claim 5 characterized in that the automatic lifting means of the front sector (7) can be raised include pistons (8).
  7. 7. -Transpaleta (1) de horquilla segun cualquiera de las reivindicaciones anteriores7.-Fork truck (1) according to any of the preceding claims
    caracterizada porque los medios automaticos de elevacion del sector frontal (7) elevable comprenden cadenas y/o cables elevadores accionados por motores.characterized in that the automatic lifting means of the front sector (7) can be lifted include chains and / or motor-driven lifting cables.
  8. 8. -Transpaleta (1) de horquilla segun cualquiera de las reivindicaciones anteriores8.-Fork truck (1) according to any of the preceding claims
    caracterizada porque los medios automaticos de elevacion del sector frontal (7) elevable comprenden resortes de elevacion en reposo de dicho sector frontal (7).characterized in that the automatic lifting means of the front elevable sector (7) comprise lifting springs at rest of said front sector (7).
  9. 9. -Transpaleta (1) de horquilla segun cualquiera de las reivindicaciones anteriores9.-Fork truck (1) according to any of the preceding claims
    caracterizada porque los medios automaticos de elevacion del sector frontal (7) de las orugas (4) comprenden unas uniones articuladas entre los brazos (5) de la horquilla (2) y los sectores frontales (7) de cada oruga (4) y/o las rodilleras (6) correspondientes.characterized in that the automatic lifting means of the front sector (7) of the tracks (4) comprise articulated joints between the arms (5) of the fork (2) and the front sectors (7) of each track (4) and / or the corresponding knee pads (6).
  10. 10. -Transpaleta (1) de horquilla segun reivindicacion 9 caracterizada porque las uniones articuladas comprenden patines (18) salientes lateralmente de las rodilleras (6) que discurren por gulas (19) longitudinales de los brazos (5).10. - Fork pallet truck (1) according to claim 9 characterized in that the articulated joints comprise skates (18) laterally protruding from the knee pads (6) that run through glulars (19) longitudinal of the arms (5).
ES201431938A 2014-12-26 2014-12-26 Fork pallet truck Active ES2539537B1 (en)

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IT201700109338A1 (en) * 2017-09-29 2019-03-29 Zonzini S R L Tracked pallet truck.
WO2019202228A2 (en) * 2018-04-16 2019-10-24 R.S.A. Concept Motorized pallet truck
FR3072354A3 (en) * 2017-10-12 2019-04-19 R.S.A. Concept MOTORIZED TRANSPALETTE TROLLEY

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WO2010008326A1 (en) * 2008-07-18 2010-01-21 Akromet Ab Fork pallet truck
CN101734295B (en) * 2010-02-03 2012-03-21 中国人民解放军国防科学技术大学 Deformed caterpillar robot
CN103231748B (en) * 2013-04-26 2015-05-27 哈尔滨工程大学 Inside and outside reinforced structural type configuration-changeable obstacle crossing robot

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