• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Pallet truck (1), of the type comprising a fork (2) for supporting and lifting the load arranged on a pallet, means for lifting said fork (2), guided/directional rolling means and handling means, the manual or electric drive may be 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 section (7) that can be raised. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2539537A1
    申请号:ES201431938
    申请日:2014-12-26
    公开日:2015-07-01
    发明作者:Luis Miguel MARGOLLES ROMERO
    申请人:MARGOLLES LOGISTICS S L；MARGOLLES LOGISTICS SL；
    IPC主号:
    专利说明:

    DESCRIPTION

    Fork pallet truck.
    OBJECT OF THE INVENTION 5

    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.
     10 BACKGROUND OF THE INVENTION

    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 15 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.

    The forklift trucks, either manually or electrically operated, used in warehouses are designed to work on regular and well paved roads, without 20 steep slopes, so they are provided with extreme wheels that are located under the ends of the fork and another central wheel in the opposite area, where a command lance can be located. These wheels are small in 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 its use in not-so-well-paved environments, such as in download docks, in works or in urban discharges , that is, in shops / homes or similar, urban, mainly at street level.
     30
    In order to avoid this inconvenience, work pallet trucks are known, where the extreme wheels are mounted on lateral protruding portions of the pallet truck frame, and are large. 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, It is as small as possible.

    Work pallet trucks with equally lateral tracks are also known, that is, protruding from the vertical projection of the fork arms. These side tracks could get enough height to overcome the unevenness described, but they have the same disadvantages of excess width.
    DESCRIPTION OF THE INVENTION

    The pallet truck of the invention has a constitution that solves the aforementioned drawbacks. 45 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 launches, console and / or steering position, being the manual or electric drive. As guided / directional rolling means, it is understood that these are rolling means 50 capable of allowing guidance and / or change of direction when driven by a
    Operatively or robotically, to steer the pallet truck.

    In accordance with the invention, the rolling means comprise tracks arranged under the arms of the fork, said tracks comprising at least one elevating front section. The elevation of said front section of the knee pads, when attacking an unevenness, 5 will allow it to be overcome with the cooperation of a suitable traction or thrust force, which is why, in the pallet truck of the invention preferably the tracks will count with a drive, ideally electric motors.

    The knee pads comprise rollers that support the tracks while minimizing friction losses.
    DESCRIPTION OF THE DRAWINGS

    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.

    Figure 2.- Shows a perspective view of the pallet truck of the invention in a configuration similar to that shown in Figure 1. 20

    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.
     25
    Figure 4.- Shows a perspective view of the pallet truck of the invention in a configuration similar to that shown in Figure 3.

    Figure 5 shows another side view of the pallet truck of the invention with the fork in the raised position for transfer of a loaded pallet, and with the front section liftable in position 30 by means of articulated joints between the fork arms and the front sectors. of each caterpillar. PREFERRED EMBODIMENT OF THE INVENTION
     35
    The fork pallet truck (1) of the invention is of the type comprising a fork (2) for supporting and lifting the load arranged on a pallet, not shown, lifting means of said fork (2), guided rolling means / directional and handling means, usually a lance, not shown, or a console (3) as shown in this non-limiting example of the invention. 40

    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, an elevable front section (7) .
     Four. Five
    In this way, when undertaking a slope 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 further cooperates 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
    rear housing (11), understood as rear located at the end opposite to the tips of the arms (5). Said power supply comprises rechargeable batteries.

    The tracks (4) are mounted on knee pads (6), which will have a joint (12) that defines the front sector (7) that can be lifted from each track (4) 5

    Additionally, the provision of automatic lifting means of the lifting sector (7) is provided. Said automatic lifting means of the elevable front section (7) comprise pistons (8) (see figs. 3 and 4) fed by a hydraulic power plant, not shown, fed by the power supply. Likewise, 10 are included as alternative or complementary means, any other belonging to the state of the art, for example chains and / or lifting cables driven by motors, not shown, in turn fed by the power supply. They could also complement or alternatively include springs, not shown, that keep the front sector (7) elevated, and when lowering the fork (2) it pushes the front sector 15 (7) and causes its descent to allow insertion under the pallet and simultaneously the loading of said springs (compression or elongation), so that when the fork (2) is raised again, the springs recover the resting position and the front sector (7) therefore rises again.
     twenty
    Another possible embodiment 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 fork lift implies the elevation of the front sectors (7) of the tracks (4). These articulated joints 25 may comprise skates (18) protruding laterally from the knee pads (6), and running along longitudinal guides (19) of the arms (5), as shown in the figure, absorbing the movement of the skates (18 ) in the guides (19) the shortening of the length of the track when the frontal sector is raised (7)
     30
    Describing 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 of the possible embodiments that are deduced from the content of the present specification. and of the claims
    35
    权利要求:
    Claims (10)
    [1]

    1.-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 means for handling, the manual or electric drive 5 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. Fork forklift (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. Fork pallet truck (1) according to claim 2 characterized in that the power supply comprises rechargeable batteries. fifteen

    [4]
    4.-Fork pallet truck (1) according to any one of the preceding claims, characterized in that the tracks (4) are mounted on knee pads (6), provided with a joint (12) defining the lifting sector (7) of each track. (4).
     twenty
    [5]
    5. Fork pallet truck (1) according to any of the preceding claims characterized in that it comprises automatic lifting means of the front sector (7) that can be lifted.

    [6]
    6. Fork pallet truck (1) according to claim 5 characterized in that the automatic lifting means 25 of the lifting sector (7) include pistons (8).

    [7]
    7. Fork pallet truck (1) according to any one of the preceding claims, characterized in that the automatic lifting means of the elevating front sector (7) comprise chains and / or motor-driven lifting cables. 30

    [8]
    8. Fork pallet truck (1) according to any one of the preceding claims, characterized in that the automatic lifting means of the lifting front sector (7) comprise lifting springs at rest of said front sector (7).
    [9]
    9. Fork pallet truck (1) according to any of the preceding claims 35 characterized in that the automatic means for lifting the front section (7) of the tracks (4) comprise articulated joints between the arms (5) of the fork (2) ) and the front sections (7) of each track (4) and / or the corresponding knee pads (6).

    [10]
    10. Fork pallet truck (1) according to claim 9 characterized in that the articulated joints 40 comprise skates (18) laterally protruding from the knee pads (6) that run along longitudinal guides (19) of the arms (5).




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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB487123A|1936-11-03|1938-06-15|Zd Y Ringhoffer Tatra As|Endless track vehicle|
    JPS51120531A|1975-04-12|1976-10-21|Yunika:Kk|Traveling cargo-handling gear|
    WO1982004230A1|1981-05-29|1982-12-09|Orion Solotar|Improvements in or relating to forklifts|
    EP0889000A1|1997-07-04|1999-01-07|Armtop|Fork lift truck|
    FR2852308A1|2003-03-13|2004-09-17|Bernard Coeuret|Conveyor/elevator truck for transporting and lifting load, has mobile part to hold telescopic pole with base connected to mobile part by articulation, and two adjustable spacers adjust orientation of pole|
    WO2010008326A1|2008-07-18|2010-01-21|Akromet Ab|Fork pallet truck|
    CN101734295A|2010-02-03|2010-06-16|中国人民解放军国防科学技术大学|Deformed caterpillar robot|
    CN103231748A|2013-04-26|2013-08-07|哈尔滨工程大学|Inside and outside reinforced structural type configuration-changeable obstacle crossing robot|IT201700109338A1|2017-09-29|2019-03-29|Zonzini S R L|TRACKED PALLET TROLLEY.|
    FR3072355A1|2017-10-12|2019-04-19|R.S.A. Concept|MOTORIZED TRANSPALETTE TROLLEY|
    WO2019202228A3|2018-04-16|2020-01-16|R.S.A. Concept|Motorized pallet truck|
    NL2027243B1|2020-06-02|2022-01-19|Eurotec B V|SELF-DRIVING VEHICLE|
    法律状态:
    2016-01-07| FG2A| Definitive protection|Ref document number: 2539537 Country of ref document: ES Kind code of ref document: B1 Effective date: 20160107 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201431938A|ES2539537B1|2014-12-26|2014-12-26|Fork pallet truck|ES201431938A| ES2539537B1|2014-12-26|2014-12-26|Fork pallet truck|
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