EP2271536A2 - Transpalette manuel - Google Patents

Transpalette manuel

Info

Publication number
EP2271536A2
EP2271536A2 EP09736056A EP09736056A EP2271536A2 EP 2271536 A2 EP2271536 A2 EP 2271536A2 EP 09736056 A EP09736056 A EP 09736056A EP 09736056 A EP09736056 A EP 09736056A EP 2271536 A2 EP2271536 A2 EP 2271536A2
Authority
EP
European Patent Office
Prior art keywords
forks
yoke part
pallet truck
support
hand pallet
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP09736056A
Other languages
German (de)
English (en)
Inventor
Klaus Delbrouck
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.)
Delbrouck GmbH
Original Assignee
Delbrouck GmbH
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
Priority claimed from DE200820005606 external-priority patent/DE202008005606U1/de
Application filed by Delbrouck GmbH filed Critical Delbrouck GmbH
Publication of EP2271536A2 publication Critical patent/EP2271536A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/04—Hand 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
    • B62B3/06—Hand 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
    • B62B3/0625—Hand 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 using rigid mechanical lifting mechanisms, e.g. levers, cams or gears

Definitions

  • the invention relates to a hand pallet truck for transporting pallets or the like loading platforms, which can be parked on feet or runners on a footprint, by the forks of Handgabelhubwagens are accessible and liftable by means of Handgabelhubwagens of the footprint and rolling in this position by means of Handgabelhubwagens on the riot plane transportable, wherein the hand pallet truck has rollers at the free ends of its forks, which roll on the support plane, while the second ends of the forks are arranged on a roller-equipped yoke part, from which a handle bar protrudes.
  • Handgabelhubwagen are used, for example, to transport loading pallets made of wood, plastic or steel. Such loading platforms are on feet or runners on the uprising level.
  • the usual Handgabelhubwagen are equipped with a mechanical or hydraulic hoist, so that the forks are height adjustable relative to the yoke. To pick up a load bed, the forks can be adjusted from the raised position of use in the lowered position. In this position, they can be moved under the loading platform and then lifted hydraulically or mechanically, the Loading platform is lifted together with load, so that it is free of the riot space. The corresponding loading platform can then be moved rolling on the ground.
  • Such pallet trucks are structurally complex and relatively heavy, in particular due to the mechanical or hydraulic hoist.
  • the invention u.a. the task of creating a Handgabelhubwagen generic type, which is structurally simple and design is designed very light construction.
  • the second ends of the forks are hinged to the yoke part about a horizontal axis directed parallel to the longitudinal axis of the yoke part, wherein the yoke part by means of the handling bracket rigidly attached thereto and / or by means of a rigid fastened Kippbügels (can be operated, for example, with the foot, but preferably the rigidly attached thereto handling bracket) from a first position of use (in the preferred masses, the second ends of the forks are sloping sloping to the insurrection level, and rest with their the pivot point adjacent end regions on the uprising level ) is pivotable about the articulation points in a second position of use, in which the second ends of the forks are lifted vertically from the support plane, wherein in this second position of use, a portion of the forks rests against the underside of the loading platform to be lifted and lifts them from the footprint.
  • first rollers are arranged at the
  • the handle bar is then pivoted total yoke part in the rollers provided on the yoke part.
  • the fork ends adjacent to the yoke part can pivot relative to the yoke part, and are raised at the same time as this end, by the corresponding adjustment of the yoke part, so that they occupy the second position of use.
  • the forks and the load thereon are lifted off the support plane, so that the entire hand pallet truck only runs on the rollers, which are provided at the free end of the forks or on the yoke part.
  • the hand pallet truck is dimensioned for the displacement of pallets which are smaller than the standard Euro pallet according to DIN 15 146 part 2, which has the following dimensions: 1200 x 800 x 144 mm (length x width x height).
  • the hand pallet truck is designed for a so-called HaIb range (600 x 800 x 144 mm), or for a quarter pallet (600 x 400 x 1400 mm). In this case, designed for a quarter-pallets Handgabelhubwagen according to the present invention, this range of both their long side and short side under reach, which is not possible with the Handgabelhubwagen according to the prior art.
  • this is achieved by allowing the free passage (the distance between the two forks) in the Range of 165-220min (and thus a roll spacing of the same order of magnitude).
  • the stability of the proposed construction is correspondingly much higher than in the hand pallet truck of the prior art for such sized pallets, which have a wide Einfahrbalken with a roller spacing of 160 mm at most.
  • Such a hand pallet truck can typically also transport a half-pallet, but normally it can only be picked up from its long side.
  • the design for eighth-pallets or even smaller mass is possible.
  • the forks are designed in their shape so that they can be pushed with their top in the first position of use under a standard pallet or a special range without contact with the bottom. But they are also designed so that, at the moment where the yoke is tilted when moving into the second position of use, first the bottom of the pallet is in its front side facing away from the handling bracket under grip. This ensures that, if any torque arises on the stack on the pallet when moving from the first to the second position of use by the contact of the forks with the pallet, this torque pivots the stack to the handling bracket.
  • the first support point of the forks is thus arranged so that it lies at least in the front half, preferably in the front third of the pallet.
  • the contact of the forks with the pallet takes place from below as flat as possible.
  • the hand pallet truck In the first position of use is usually the yoke part on the riot level. As a result, the hand pallet truck is blocked in its mobility. Since the hand pallet truck is typically pushed under the pallet in the first position of use, skids are preferably arranged on the underside of the yoke part. Also possible is the arrangement of rollers in the bottom contact area of the yoke. It is particularly preferred if these rollers only come into contact with the contact surface when the handling bracket and thus the yoke part is tilted somewhat forward, that is to say towards the forks, so that when the hand pallet truck is uninfluenced, the floor Contact area of the yoke part acts as a kind of brake.
  • such a hand pallet truck characterized in that the second, that is, to a certain extent, rear rollers are attached to the yoke part by means of a respective roll holder.
  • these second rollers are rotatably mounted in this roller holder about a roller rotation axis, and preferably additionally the roller holder in turn rotatably mounted about a substantially perpendicular to the roller rotation axis aligned support axis of rotation.
  • the hand pallet truck is very easy to control because the axis of the rear rollers are rotatable about a vertical axis in the second position of use.
  • the roller rotation axis is offset from the support rotation axis by an offset in space. This causes the roles when moving from the first position of use in the second position of use automatically put in the optimum position.
  • the design is designed so that the pallet in the second position of use is only slightly raised from the ground, for example only in the range of 10 mm.
  • Such a device is very inexpensive to manufacture and not only cost to create due to the lack of mechanical or hydraulic hoists, but also form lightweight and resistant.
  • the yoke part in the first position of use rests on the support plane and in the second position of use is away from the contact plane, so that the yoke part in this position indirectly via the rollers arranged on the yoke part is supported on the support plane.
  • the arrangement is made such that the yoke part rests in the first position of use on the support level.
  • the rollers attached to the yoke part protrude in this position practically functionless from the yoke part in a direction that faces the forks.
  • the element can be moved under a corresponding loading platform or the like.
  • rollers are arranged on the yoke part below its lower edge and the articulation axis is provided on the upper edge region of the yoke part facing the forks.
  • the hinge axis may be formed by hinges or the like, which are attached on the one hand to a side surface of the yoke part and on the other hand to the facing end face of the fork ends.
  • the hinge axis of these hinge strips runs parallel to the longitudinal extent of the yoke part.
  • the attachment takes place at the upper end of the yoke part or at the upper end of the fork ends.
  • the rollers of the yoke part are preferably arranged at the lower region of the yoke part in its rear end, which faces away from the forks.
  • rollers are arranged on the yoke part in the first position of use to the rear, with respect to the forks projecting and the hinge axis is provided at the lower front portion of the yoke part.
  • the rollers are mounted on the yoke part, which is approximately rectangular in cross-section, so that they protrude rearward in the first use position, that is to say on the side facing away from the forks.
  • the yoke part can in this case rest in the first position of use with its underside on the support level.
  • Jochteils be displaced, at the same time the yoke part is raised.
  • the forks hinged to the yoke are also raised and thereby pivot about the hinge axis.
  • the hinge axes are provided at the front lower in the region of the yoke.
  • a travel limit stop is provided on the yoke part or on the forks, against which the marginal edge of a loading platform rests in the first position of use.
  • This path limit stop is preferably in the form of a plate or a bracket, which extends at least over a height of 30 cm, preferably at least 50 cm, more preferably at least 80 cm above the AufStandsebene. It is particularly preferred if the Wegbegrenzungsanschlag is hingedly attached to the forks and Wegbegrenzungsanschlag with means (for example, a rubber band, belt, a spring or the like) is provided by means of which a pallet arranged on the stack of goods can be attached to the travel limit stop ,
  • This limit stop serves to ensure that, when the hand pallet truck is in the first position of use, the forks can be easily pushed under the corresponding pallet or loading platform, this insertion path is limited by the Wegbegrenzungsanschlag, so that a secure positioning is possible.
  • retaining lugs are provided on the front of the yoke part, which faces the forks, which engage under an edge of the loading platform in the second position of use.
  • retaining lugs are raised when adjusting in the second position of use with the yoke part and engage under an edge of the loading platform, which is preferably provided as a downwardly projecting edge.
  • an edge of the loading platform which is preferably provided as a downwardly projecting edge.
  • the forks are angled flat obtuse angle near their free end to the ridge level, the upper edge of the bend in the second Gebrauchsshage on the underside of the loading platform this rests supporting.
  • the insertion of the forks below the loading platform in a simple manner and without hindrance is possible, in particular in the second position of use for raising the forks supporting the edge portion of the bend on the underside of the loading platform.
  • This area is near the free ends of the forks, so that in this area a support of the loading platform or pallet takes place. Further support is provided in the edge region of the loading platform or pallet adjacent to the yoke by the corresponding retaining lugs which have already been specified.
  • a further preferred embodiment is characterized in that the handle bar has an upper, that is, facing away from the yoke part, region which is tiltable about an axis with respect to a lower region and in at least two different positions can be fixed.
  • This axis is preferably arranged horizontally and perpendicular to the axis of the forks. So the extension of the Hand pallet truck in the second position of use (to some extent its length) are significantly reduced and thus its increased mobility in tight shop conditions are used optimally.
  • the handle bar in the first position of use extends approximately vertically to the support plane and protrudes from the top of the yoke portion, while the handle bar with the attached yoke part is aligned obtuse angle to the forks in the second position of use.
  • the forks from the first or second use position are pivotable in a non-use position, in which they are pivoted approximately parallel to the handling bracket between the hanger arms.
  • the forks or components of the forks in the non-use position are releasably locked to the bracket leg.
  • an angle stop is present, which prevents the angle between the forks and the handle bar exceeds a maximum value, that is, which prevents, so to speak, the handle bar can be completely placed on the floor.
  • This maximum value of the angle between the forks and the handling bar is preferably in the range of 100-170 °, particularly preferably in the range of 120-150 °.
  • the support elements are designed as wedge-shaped runners, which are aligned from the free end of the forks to the yoke part rising or falling.
  • the support elements run on the edge beginning to near the retaining lugs.
  • this preferably wedge-shaped support elements is achieved that still the forks in the first position of use under the loading platform or the like can be inserted.
  • a further preferred embodiment is characterized in that the forks have a width at their upper side facing away from the contact surface, which width is smaller than the width on the side facing the contact surface, wherein preferably the lateral flanks are conically widening downwards. In this way it is possible to optimally undermine many of those pallet constructions which have feet which taper downwards.
  • Schwenkweg- limit stop parts are provided on the yoke part, which support the pivoting path of the yoke part limiting at the Aufstandsebene when the yoke part is pivoted to the first use position on the second position of use also.
  • support yokes are attached to the yoke part, which engage over the rollers of the yoke part and form the Schwenkwegbegrenzungsanschlag with their free ends.
  • stop members are designed in the form of the rollers cross-support legs, in addition, the roles are covered, so that the user can not step against the rollers.
  • a further preferred embodiment solves this problem and is characterized in that at least one first support element is arranged on the forks or between the forks, which supports the free ends of the forks in an elevated position when the hand pallet truck from a raised level with respect to the riot plane the
  • a second support element is arranged on the handle bar, which supports the yoke part in an elevated position.
  • first support element (front) and the second support element (rear) together support the entire hand pallet truck in an elevated position at least temporarily.
  • the second support element has rollers at its lower end and is in the form of a support strut which extends rearwardly from the handling bracket.
  • the first support element is detachably fastened (for example, a mechanism for latching) between the two forks in the region of their free ends. Furthermore, it is preferred that the first support element between the two forks is rotatably mounted about a horizontal axis perpendicular to the direction of the forks. Furthermore, it is preferred if a force-receiving element, in particular in the form of a gas spring, is arranged, which controls the angular position between the forks and the first support element.
  • the energy can be absorbed when lowering from the elevated position to the normal position with the aid of the gas spring, and the energy can be made available again on the other hand, if in turn the hand pallet truck is to be placed on the increase.
  • the proposed mechanism is capable of both reducing the hand pallet truck from being raised and putting it back on top of it, with little effort and without undue shaking or shifting of the loads on the half or quarter pallet.
  • the support element may be a scissor lift table arranged on or between the forks, the scissor arms of which are preferably movably mounted on the inside of the forks.
  • the scissor lift automatically moves, eg supported by a gas spring down to a typically arranged below the scissor lift table support rests on the support level.
  • the scissor lift takes over a temporary support function.
  • the scissor lift has a mechanism that provides controlled lowering of the scissor lift (eg, a gas brake or gas damping) so that the entire hand pallet truck then controls and generally lowers slowly until the front rollers rest on the support level.
  • the scissor lift is designed so that a second pair of scissor arms depending on the free ends of the respective fork arm via a hinge (which can not be moved) is articulated, and a first pair of scissor arms at the second ends of the respective fork arm via a typically articulated in a longitudinal groove slidable hinge, wherein the first pair of Scissor arms and the second pair of scissor arms (38) are connected in the central region via a scissors joint, wherein at the fork arms facing away from the ends of the scissor arms, a support element for support on the AufStandsebene, preferably in the form of a typically rectangular support frame is articulated, and wherein the hinge of the second scissor arms on the support member is slidably disposed in a longitudinal groove.
  • the support member or the support frame may have on its the support surface facing underside skid and / or rollers, so that the resistance when moving the Handgabelhubwagens is minimized.
  • the respective longitudinal groove, over which the first scissor arms are pivoted on the fork, at its second end of the respective fork arm facing the end in the form of an L-shaped groove in a substantially perpendicular to the direction of the fork arm up , that is, to the loading surface of the hand pallet truck directed extending groove portion passes.
  • the scissor lift in the folded position substantially completely between the fork arms be sunk, which is particularly advantageous for pallets or load platforms with lower height.
  • Gas damping or gas spring include, which allows a damped lowering of the fork arms on the support level, wherein the scissor lift under and / or between the fork arms folds.
  • a gas brake or gas spring can be designed to be adjustable for different loads, a corresponding construction for adjustment can be provided either on the gas brake and / or in a manner such that the braking effect can be adjusted on the handle bar.
  • a holding mechanism for example, snap hook
  • such a holding mechanism is also at a comfortable height trigger on the handlebar, so that controlled at that moment, where only the front rollers rest on the pallet of scissor lift can be actively triggered and lowered down. Then comes at the end of the lowering of the hand pallet truck, the scissor lift in its fully folded between the forks position, it preferably engages automatically in this holding mechanism, in a position such that in a use position where the yoke is so that the rear rollers come to rest on the ground, the underside of the scissor lift table is not in contact with the ground.
  • a further preferred embodiment is characterized in that rollers (preferably releasably) can be fastened between the free ends of the forks preferably at the level of the first rollers, wherein the rollers are preferably rotatably mounted in a first support element, as described above.
  • FIG. 1 shows a hand pallet truck according to the invention in the first position of use
  • Figure 2 likewise in side view, partially cut
  • FIG. 3 likewise in side view with an undercut pallet
  • Figure 4 likewise in side view, partially cut
  • FIG. 5 likewise in the second position of use
  • Figure 6 shows the Handgabelhubwagen in the non-use position in side view
  • FIG. 7 likewise in front view
  • FIG. 8 shows a hand pallet truck according to the invention according to a second embodiment in a side view in the first position of use (a) and in the second position of use (b) and in another specific embodiment with a tiltable handle (c);
  • Figure 9 is a detail side view of the suspension of the rear rollers on the yoke part in the first position of use (a) and in the second position of use (b);
  • Figure 10 is a vertical section perpendicular to the extension direction of the fork through the front free ends:
  • Figure 11 shows a further embodiment with additional tools for removing a small pallet from a Euro pallet, wherein in Figure 11 a-c an embodiment is shown without support block in the different positions;
  • Figure 12 shows a second embodiment with a support block, wherein in a-c a version is shown in which no control element is present, and in d-f an embodiment is shown, in which the support block is controlled by a gas spring.
  • Figure 13 is a further sectional view analogous to Figure 10, in which between the two forks, a support block is arranged with rollers;
  • Figure 14 shows different possible Embodiments of the forks in lateral view
  • FIG. 15 shows a further embodiment in which the yoke part can be pivoted from the first into the second use position via a tilting bracket
  • Figure 16 shows a further embodiment in which a scissor lift is arranged between the forks, wherein in a) a side view is shown in a situation where the scissor lift is extended and the hand pallet truck with its front roller just rests on a pallet, in b ) is a view from the front, in c) a top view, in d) a perspective view, in e) a detail of the perspective view and in f) an enlarged section of the perspective view in the region of the L-shaped groove is shown.
  • a hand pallet truck according to the invention is shown.
  • Such Handgabelhubwagen serves to transport pallets 1 or the like loading platforms, which can be placed on feet 2 or runners on a AufStandsebene.
  • the corresponding pallet 1 of the forks 3 of the hand pallet truck is wheeled under.
  • the corresponding pallet 1 can be lifted by means of Handgabelhubwagens of the riot plane and in this position by means of Hand pallet truck on the Aufstandsebene rolling transportable, as shown in Figure 5 is illustrated.
  • the hand pallet truck has at the free ends of its forks 3 rollers 4, which roll on the riot plane.
  • the second ends of the forks 3 are arranged on a yoke part 6 provided with rollers 5. From this yoke 6 protrudes a handling bracket 7, in the embodiment, a crimped U-shaped bracket from.
  • the second ends 8 of the forks 3 are pivotally connected to the yoke part 6 about a horizontal, directed parallel to the longitudinal axis of the yoke part axis, as shown in particular in Figure 4.
  • the hinge axis is formed by a rod-shaped element 9 of the yoke part.
  • the second ends 8 of the forks which are designed with corresponding joint shells, are pivotably mounted.
  • the further components of the yoke part namely the central part and the two outer parts which can be seen in particular in FIG. 1, are fixedly and immovably connected with one another, for example arranged non-rotatably on the rod-shaped element 9.
  • the yoke member 6 is by means of the attached handling bracket 7 from the first Gebrauchsläge shown in Figure 1 to 4, in which the second ends 8 of the forks 3 to the contact surface (in the drawing down) are sloping sloping and with their the articulation point resting adjacent end areas on the support level, in a second position of use pivotable about the articulation points, in which the second ends 8 of the forks 3 are lifted vertically from the uprising level. In this second position of use according to FIG.
  • the yoke part 6 rests on the upright level in the first use position according to FIGS. 1 to 4, ie it is supported directly on it, while the yoke part 6 of the second use position is lifted off the contact surface, ie away from it the yoke part in this position according to FIG. 5 is supported on the support plane only via the rollers 5 arranged on the yoke part.
  • the rollers 5 are arranged on the yoke part 6 so that they protrude in the first position of use according to Figures 1 to 4 to the rear, ie opposite the forks 3.
  • the hinge axes (at 9) are provided at the lower front part of the yoke part. If, in this arrangement, the handling bracket 7 is pivoted from the position according to Figure 1 to 4 in the clockwise direction in the position shown in Figure 5, the roller 5 of the yoke 6 is supported at the contact surface and forms quasi the pivot bearing for the yoke, which according to the Upper level of the rollers 5 and their storage is raised. In this case, the second position of use according to FIG.
  • a travel limit stop 11 is formed on the yoke part 6, against which the marginal edge of a loading platform or pallet 1 rests in the first position of use, as illustrated in FIG. As a result, the insertion path of the hand pallet truck is limited to a desired size.
  • holding lugs 12 are provided on the front side of the yoke part 6, which faces the forks 3, which in the second position of use according to FIG. 5 engage under the downwardly projecting edge 13 of the pallet 1.
  • a second support area is formed next to the support area 10, wherein in addition a position assurance against displacement of the pallet 1 is achieved.
  • the forks 3 near their free end region are angled away at an obtuse angle to the contact surface, wherein the upper-side edge 10 of the bend in the second position of use according to FIG. 5 is on the underside of the pallet 1 or the like supporting.
  • this edge (10) distance from the bottom of the pallet 1, so that a constraint-free insertion of the hand pallet truck below the pallet allows is.
  • the handling bracket 7 in the first position of use according to FIGS. 4 to 4, the handling bracket 7 extends substantially vertically to the contact surface and protrudes from the upper side of the yoke part 6, while in the second position of use the handling bracket with the yoke part 6 fastened thereto leads to the forks 3 is aligned obtusely.
  • the forks 3 are pivotable from the first or second position of use into a non-use position, which is shown in FIGS. 6 and 7, in which they are pivoted in approximately parallel to the handling bracket 7 between its stirrup legs.
  • the forks 3 or their components can be releasably locked in the non-use position on the stirrup legs, including locking means 14 are provided on the BügeIschenkeln
  • FIG. 8 (a) of the hand pallet truck is shown in the first use position in a side view, while the hand pallet truck is pushed under a quarter pallet.
  • Functionally identical components are denoted by the same reference numerals in FIG. 8 as in the already described figures.
  • the hand pallet truck has a travel limit stop 11 for the pallet 1, which is in the form of an approximately waist-high strap.
  • This bracket is designed as a metal bracket and has approximately a tube of 1 cm in diameter.
  • the bracket is formed substantially U-shaped, wherein the free ends of this U-shaped bracket are inserted into corresponding blind holes or fürgangsl ⁇ cher in the two forks or an interposed element. If the handling bracket 7 is tilted in this embodiment, as shown in Figure 8, the rollers 5 come in contact with the bottom of the yoke part and the pallet 1 is first raised at the contact area 10 from below by the forks 3.
  • the forks 3 are in this case designed so that they rest in the second position of use, which is shown in Figure (8b), in the entire rear two-thirds flat on the underside of the pallet 1. It takes place so an optimal power transmission.
  • the travel limit stop in the form of a bracket in this embodiment is connected at a rigid angle to the forks.
  • the bracket 11 can be pulled out by gently lifting and pulling out of Sackl ⁇ chern in the forks and then an exposed Joint pivoted to the forks.
  • the two forks can be folded up to store the Handgabelhubwagens by first the bracket 11 is slightly pulled up and pivoted against the forks 3 and then the forks in Figure 8a clockwise about 90 degrees is pivoted against the handlebar.
  • a rubber band, a belt or a spring is attached to the stop bracket 11.
  • goods arranged on the pallet can be fastened for transport by laying the fastening means around the stack of goods and fixing it on the bracket 11 on the other side.
  • This mounting strap can then also be used to tie the forks in the unfolded position together with the Wegbegrenzungsbügel 11 in the unfolded position on the handlebar 7.
  • the maximum lowering position of the handling bracket 7 with respect to the forks 3 is defined by a stopper.
  • the handlebar 7 further pressed clockwise down, so follow the two forks 3 of this rotation, because the angle between the handlebar 7 and the forks 3 is defined from this angular position.
  • This rigid fixation can for example be used to easily lift the front rollers 4 when driving over a door sill or the like.
  • FIG. 8 (c) A preferred embodiment of this embodiment is shown in Figure (8c).
  • the handling bracket 7 has here an upper part 7 ', which can be pivoted approximately at half height via a tilting axis 15.
  • This tilting axis 15 has a mechanism with which the angular position of the upper part of the handling bracket 7 'with respect to the lower part can be determined.
  • the length of the hand pallet truck is significantly shortened by this simple design measure and increases its mobility, especially in narrow aisles and tight curves around.
  • the rear rollers 5 are rotatably mounted about a shaft 18 in a roller support 17 (typically sheet metal).
  • the rollers 5 are typically designed with a fairly small diameter and, for example, polyamide.
  • the roller holder 17 is in turn rotatably attached to the yoke part 6 about a rotation axis 19.
  • the specific arrangement of such roles, in which the axis of rotation 18 of the roller with respect to the axis of rotation 19 of the roll holder 17 in space around a is offset, also has the advantage that the rollers 5 when pivoting from the first use position to the second use position automatically in the optimal for this process situation, as shown in Figure 9 (a), pivot about the axis 19.
  • the entire height of the roll holder incl. Roll in the range of only about 50- 60 mm.
  • FIG. 9 also shows how the maximum pivoting of the yoke part 6 can be limited by placing a support leg 16 which overlaps the rollers 5 and which is in contact with the floor at the maximum pivoting position, as shown in FIG. 9 (b) comes and makes another pivoting of the yoke part impossible.
  • FIG. 9 (a) how, in the first use position, the rollers essentially do not touch the contact surface 32 and the yoke part rests with its lower surface on the contact surface 32.
  • the hand pallet truck is blocked accordingly by this edition and the associated frictional engagement. So that the hand pallet truck can nevertheless be pushed under a pallet 1 in the first use position, as shown, for example, in FIG. 8 a), this underside can be designed in the form of skids 20.
  • additional rollers 21 may be provided in the region of this edition. But now that the braking effect is not affected by the support of the yoke 6 when not in use the Handgabelhubwagens, can these rollers 21, advantageously arranged slightly offset to the front, as shown in Figure 9a). Thus, these additional rollers 21 come into engagement with the ground only when the handle bar, as is common when pushing the Handgabelhubwagens under a pallet, something is pressed forward and thus the yoke member 6 is tilted slightly counterclockwise.
  • FIG. 10 a section through the front region of the two forks, i. H. shown in a vertical plane perpendicular to the extension direction of the forks 3.
  • the two forks 3 on the upper side have a contact area 10 and how the two flanks 24 and 25 are slightly widening down.
  • a recess 22 is disposed at the very front of the bottom, in which a roller 23 is rotatably supported by a respective rotation axis.
  • FIG. 11 This process is shown schematically in Figure 11 together with another embodiment of the hand pallet truck according to the invention.
  • Figure (IIa) is such a hand pallet truck, which engages under a pallet 1, shown on a Euro pallet 26.
  • the handling bracket 7 of the hand pallet truck has a support strut 27 which extends rearwardly and has a support roller 28 at its free end.
  • the handling bar as usually the case has two arms, two such struts 27, each attached to an arm of the handling bracket.
  • a support block 29 is rotatably disposed between the two forks.
  • This support block 29 preferably pivots itself downwards along the arrow shown in FIG. 12 (a) from a position between the forks 3.
  • the support block 29 has a length which corresponds substantially to the height of a Euro pallet and thus can support the front free ends of the hand pallet truck at the moment where the front rollers 4 leave the upper bearing surface of the Euro pallet.
  • the support block 29 may be provided with a control element 31.
  • this is a gas spring, which in the transition from the réellesteltzten contactssteltzten position according to Figure 12 (d) during slow lowering as shown in Figure 12 (e), the rotation of the support block 29 clockwise attenuated in a sense.
  • the gas spring can be provided accordingly with a simple small adjustment function, which makes it possible to adjust the resistance of the gas spring 31 to the typically applied load.
  • the energy stored in the gas spring by the process of FIG. 12 (e) may then be used for recharging as shown in (FIG. 12f).
  • a pallet 1 on a Euro pallet 26 but can be put back by the Handgabelhubwagen is pushed with the forward projecting support block to a longitudinal or lateral side of the Euro pallet and then the handling bracket 7 in the clockwise direction, as indicated by the arrow pivots becomes.
  • the surface of europallets is very variable.
  • the two rollers 4 are preferably made quite narrow at the free ends of the forks, since the two fork arms should in turn be as narrow as possible in order to fit under as many pallet constructions. This can lead to problems associated with the rollers sinking into gaps between individual boards of the surface of europallets and then the hand pallet truck can no longer be moved or maneuvered.
  • rollers 33 are provided in the region of the free ends of the forks.
  • the rollers 33 in a support block, as explained in connection with Figure 12, arranged.
  • the support block 29 has in its front region via recesses and in these recesses two rollers 33 are mounted side by side rotatable about a rotation axis. From Figure 13 it is also apparent how the support block 29 is in turn mounted about a rotational axis rotatable between the two forks, so that the support block, as shown in Fig. 12, can take over its Anstutzfunktion. With reference to Figure 14, the different configurations of the forks 3 are shown in side views.
  • FIG. 1 shows Different constructions which make this possible.
  • FIGS. 14 (c) and (d) show how it is advantageously possible to provide a wedge-shaped support on the actual fork 3, which is inclined slightly towards the yoke part 6. This then leads to the fact that, as shown in Figure (14d), in the second position of use, the top of this wedge is aligned substantially horizontally, and thus the pallet 1 engages optimally under the surface.
  • FIG. 15 Another alternative embodiment is shown in FIG.
  • the tilting bar 34 can be designed as a footrest, which can be operated with the foot. In order to transfer to the second position of use, this tilting bar is now stepped down and the hand pallet truck is brought into a position as shown in FIG. 15 (b).
  • FIG. 16 Another embodiment is shown in FIG. In this embodiment, between the fork arms 3 is a scissor lift 35th arranged.
  • a scissor lift 35th arranged between the fork arms 3 in Figure 16, such a hand pallet truck is shown in a position where the front rollers 4 just rest on the surface of a pallet 26 from which smaller pallets are to be removed by means of the hand pallet truck.
  • the scissor lift 35 has already lowered into an extended position, so that it rests with its lower support surface on the ground.
  • the scissor lift table 35 has two pairs of scissor arms.
  • a first pair of scissor arms 37 is articulated on the side of the handling bracket 7 on the inside of the respective fork 3.
  • a second pair of scissor arms 38 is articulated on the other side on the inside of the respective fork 3.
  • the second pair is fixed via a pure pivot, while the first pair has a pivot which allows a displacement along the main course direction of the fork arms.
  • the two scissor arms 38 are rotatably connected approximately in the middle via a scissors joint 46.
  • a lower support frame 36 is arranged for support on the ground.
  • the first scissor arms 37 are attached to this frame 36 via a pure rotary joint, while the second scissor arms are articulated at the rear end with a slidable via the groove 43 pivot.
  • Another transverse strut 41 connects the upper ends of the first scissor arms.
  • the first scissor arms 37 are rotatably and slidably mounted on the inside of the forks in an L-shaped groove.
  • This groove 45 which is typically milled out of the fork arm, has a horizontal portion a, which is located near the bottom of the fork arm, and merges into a vertical portion b at the rear, yoke-facing end.
  • this vertical section b it is possible that the scissor lift in the retracted state can be sunk optimally deep between the fork arms.
  • the frame 36 in its length and width is designed so that it can be sunk easily with the scissor arms between the fork arms.
  • 36 side wings 40 may be arranged on this frame.
  • a normally sprung snap hook which is arranged for example on the inside of one or both fork arms, and which the frame 36 in the retracted position, then when the pivot substantially at the upper end of the vertical portion b of the groove 45 arrived is fixed, self-locking.
  • the snap hook can be solved via an appropriate connection (for example, cable) from the handle bar to the scissor lift in the desired Lower moment down.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Handcart (AREA)

Abstract

L'invention concerne un transpalette manuel pour le transport de palettes (1) ou de plate-formes de chargement similaires qui peuvent être déposées sur une surface de contact sur des pieds (2) ou patins, sous lesquelles peuvent passer les fourches (3) du transpalette manuel et que le transpalette manuel peut soulever de la surface de contact et transporter dans cette position en roulant sur le plan de contact. Le transpalette manuel selon l'invention présente aux extrémités libres de ses fourches (3) des roulettes (4) qui roulent sur le plan de contact, alors que les deuxièmes extrémités des fourches (3) sont placées sur une partie cadre (6) munie de roulettes (5) de laquelle s'élève une barre de maniement (7). La structure du transpalette manuel selon l'invention est caractérisée en ce que les deuxièmes extrémités des fourches (3) sont articulées sur la partie cadre (6) de manière à pivoter autour d'un axe horizontal (9) orienté parallèlement à l'axe longitudinal de la partie cadre (6). La barre de maniement (7) fixée rigidement à la partie cadre (6) permet de faire pivoter cette dernière autour des points d'articulation (8) d'une première position d'utilisation, dans laquelle les deuxièmes extrémités des fourches (3) reposent avec leur partie terminale voisine du point d'articulation (8) sur le plan de contact en s'inclinant vers le plan de contact, dans une deuxième position d'utilisation dans laquelle les deuxièmes extrémités des fourches (3) sont soulevées verticalement du plan de contact. Dans cette deuxième position d'utilisation, une zone (10) des fourches appuie contre la face inférieure de la palette à soulever (1) et la soulève de la surface de contact.
EP09736056A 2008-04-22 2009-04-07 Transpalette manuel Withdrawn EP2271536A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200820005606 DE202008005606U1 (de) 2008-04-22 2008-04-22 Handgabelhubwagen
CH13852008 2008-08-29
PCT/EP2009/054157 WO2009130128A2 (fr) 2008-04-22 2009-04-07 Transpalette manuel

Publications (1)

Publication Number Publication Date
EP2271536A2 true EP2271536A2 (fr) 2011-01-12

Family

ID=40874932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09736056A Withdrawn EP2271536A2 (fr) 2008-04-22 2009-04-07 Transpalette manuel

Country Status (2)

Country Link
EP (1) EP2271536A2 (fr)
WO (1) WO2009130128A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104477226B (zh) * 2014-11-28 2017-03-15 李建尧 一种推车
CN114476555B (zh) * 2022-03-17 2023-10-03 中铁建大桥工程局集团电气化工程有限公司 一种大型电气设备转运装配运载平台

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2077265A (en) * 1935-11-15 1937-04-13 Harris And Reed Mfg Company Lift-truck
US2259816A (en) * 1938-11-05 1941-10-21 Barrett Cravens Co Truck
DE913399C (de) * 1950-08-02 1954-06-10 Karl H Bartels Fa Hebelroller
CH599889A5 (fr) * 1976-05-21 1978-06-15 Weelpal Ag
JPS5728695Y2 (fr) * 1979-05-01 1982-06-23
DE29803295U1 (de) * 1998-02-27 1998-05-07 Kwasny, Siegfried, 33334 Gütersloh Fuß- und Transportgestell für Verkehrszeichen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009130128A3 *

Also Published As

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WO2009130128A2 (fr) 2009-10-29
WO2009130128A3 (fr) 2009-12-17

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