WO1996034787A1 - Arrangement for raising or lowering of a load - Google Patents

Arrangement for raising or lowering of a load Download PDF

Info

Publication number
WO1996034787A1
WO1996034787A1 PCT/SE1996/000572 SE9600572W WO9634787A1 WO 1996034787 A1 WO1996034787 A1 WO 1996034787A1 SE 9600572 W SE9600572 W SE 9600572W WO 9634787 A1 WO9634787 A1 WO 9634787A1
Authority
WO
WIPO (PCT)
Prior art keywords
arrangement
wheels
beam section
main part
unit
Prior art date
Application number
PCT/SE1996/000572
Other languages
French (fr)
Inventor
Boh Westerlund
Original Assignee
Boh Westerlund
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Boh Westerlund filed Critical Boh Westerlund
Priority to AU56616/96A priority Critical patent/AU5661696A/en
Publication of WO1996034787A1 publication Critical patent/WO1996034787A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, 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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices 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
    • B66F9/075—Constructional features or details
    • B66F9/07513—Details concerning the chassis
    • B66F9/07518—Fuel or oil tank arrangements

Definitions

  • the present invention relates not only to an arrangement for transportation but also to an arrangement for lifting and lowering a load resting on a loadcarrying surface.
  • this invention refers to an arrangement in ⁇ cluding a main part, restable against a supporting surface, to the main part mounted vertically oriented beam section, to the main part mounted frame section, with wheels movable along said supporting surface, to the beam section partly connected lifting device, with means for cooperating with a loadcarrying unit through an electric activation of the lif ⁇ ting device for moving the loadcarrying unit along the beam section and means for electrically activating said loadcar ⁇ rying unit, for lifting and lowering said loadcarrying unit.
  • the present invention is furthermore based on the idea that the main part consists of a first part, of a first two-part connecting arrangement, where the second part is related to one of the end sections of the beam section, and that the main part also consists of a first part, of a second two-part connecting arrangement, where the second part relates to said frame section, for a firm but easily removable co-operation between said two parts.
  • the present arrangement has been invented primarily as a lif ⁇ ter and for transportation, lifting and lowering a load of 100 - 200 kg resting on a loadcarrying unit, but the inven ⁇ tion can also be used for transportation, lifting and lowe ⁇ ring a load of 400 - 500 kg resting on a loadcarrying unit of a so called "miniforklift".
  • This mobile lifting-trolley discloses the above noted func ⁇ tions and is equipped with an electrically driven loadcar ⁇ rying surface for lifting and lowering loads and is intended for use in kitchens, industries, warehouses, drugstores, pos- toffices and the like.
  • the lifting-trolley is specially designed for lifting and transporting boxes, cartons, cans, sacks, kantins, and the like.
  • This lifting-trolley consists of two parts, one frame part and one beam section that are easily assembleable and disas- sambleable by means of a two-part connecting arrangement.
  • a known arrangement for transporting, lifting and lowering a load on a loadcarrying unit or an arrangement according to the present invention will here be called “lifter” even if this invention can be adapted to other mobile units such as forklifts, miniforklifts and the like.
  • a further technical problem is to, with simple means, build an arrangement of this kind from a base part or main part with the aid of different module related parts and which can easily be adapted to specific needs and that an assembled lifter can be able to be rebuild or amended for other needs.
  • a technical problem resides in rea ⁇ lizing the significance and advantage of dividing the frame part into two parts in such a way that the first part can consists of two cooperating wheels, which with or without specific arrangements can easily be attached to the main part, for instance in the form of a beam with two edge orien ⁇ ted wheels, in a way that the wheels will be oriented adja ⁇ cent to with the main part cooperating beam section.
  • a further technical problem is that of realizing the impor ⁇ tance of letting said first and second parts or units include a second part, each in their own two-part connecting arrange- ment, for cooperating with its first part in the main unit, and that said two first parts in the main unit shall be adap ⁇ ted to opposed edges of the main unit.
  • the first part of the frame unit consist of a chosen unit out of several accessable first units, where the essential difference between these units are different distances between their edge-related whe ⁇ els or that they in an other form is adapted to specific whe- eltypes.
  • the second part of the frame unit consists of a chosen unit out of several acces ⁇ sable second units, where the essential difference between these units are different distances between their legmounted wheels and/or chosen different distances from the beam sec ⁇ tion.
  • the second part of the connecting arrangement of the frame unit consist of, among other things, two bars, insertable in each siderelated track or hole in the main unit and a retaining arrangement.
  • a further technical problem resides in realizing the signifi ⁇ cance of using a lifting arrangement built in to the beam section consisting of a treaded shaft driven in rotation by means of one in the main unit located drive machinery, where the treads match inside a carrier unit extending through a trace in the beam, where the extending portion of the unit is designed to cooperate with a device and that said device could have a horisontally oriented profile or track that can support in said track suitably arranged forks.
  • the present invention takes as its star ⁇ ting point a lifter or an arrangement for transporting, lif ⁇ ting or lowering a load resting on a loadcarrying unit, where the arrangement includes one, against a supporting surface resting, main part, one, to the main part mounted, vertically oriented beam section, to the main part mounted frame section with, against the supporting surface resting wheels, to the beam section partly connected lifting arrangement, with means for cooperating with said load-carrying unit, and through activation of the lifting arrangement move the loadcarrying unit along the beam section and means for electrically acti ⁇ vating said loadcarrying arrangement, at which the main part shows a first part, of a first two-part connecting arrange ⁇ ment, where the second part is on one of the end sections of the beam section, that the main part consists of a first part, of a second two-part connecting arrangement, where the second part forms part of said frame section, for a firm but easily removable cooperation between said
  • said frame section is divided in several parts consisting of a first part with two wheels, where the wheels preferably are end oriented and oriented adjacent to said beam section and a second U-shaped or at least essentially U-shaped part equip ⁇ ped with two wheels where the wheels preferable are end ori ⁇ ented on the legs and oriented on a distance from said beam section, that said first and second parts, each shows a se ⁇ cond part, in a two-part connecting arrangement, for coopera ⁇ tion with each first part in the main part and that said two first parts are arranged to opposite end sections of the main part.
  • the first part of the frame sec ⁇ tion is chosen from a number of first parts, distinguished by different distances between end related wheels and different types of wheels.
  • the second part of the frame unit is shaped like an "U" and is chosen out of a number of different second parts with the distinction of different dis ⁇ tances between the leg- and end-related wheels and/or diff ⁇ - rent distances from the beam section.
  • first part of a connecting arrangement consists of a bolt and nut ar ⁇ rangement or the like while to the main part is assigned said second part of said connecting arrangement and it consists of, among other things, at least two bars insertable in each siderelated track, hole or channel in the main unit.
  • the to the beam section atta ⁇ ched lifting arrangement consists of a treaded shaft with a carrier unit where the extending portion of the unit is de ⁇ signed to cooperate with said device that could have a hori- thankally oriented track that can cooperate with in the track horisontally movable and adjustable arranged forks or that said device shows two siderelated tracks or channels adapted for cooperation with a loadcarrier such as lift-forks.
  • the advantages primary afforded by the invented arrangement is the possibillity of easily assemblance of lifters in dif ⁇ ferent sizes, customiced to a chosen lift or load needed and to chosen functions and/or stability primary only by chosing to a frame unit belonging first part, as a first part from a number of available first parts, each of which distinguished mainly only by different distances between wheels and to cho ⁇ ose the second part of the frame unit as a second part out of a number of different second parts each of which with the main distinction only by different distances between wheels or different types of wheels and/or different distances from the beam section.
  • Figure 1 illustrates a first embodiment of a lifter wit ⁇ hout forks seen in one perspective view.
  • Figure 2 illustrates the lifter in fig. 1 in a second per ⁇ spective view.
  • Figure 3 illustrates the lifter in fig. 1 and 2, with forks, in a perspective exploded view.
  • Figure 4 illustrates an alternative design of first and second parts of one frame unit.
  • Figure 5 illustrates four different versions and lengths of useable beam sections.
  • Figure 6 illustrates in a side view other arrangement for a loadcarrying device.
  • Figure 7 illustrates in a side view an alternative arrang ⁇ ement for a loadcarrying device.
  • Figure 8 illustrates in a horisontal view, a number of different usable first parts of frame units.
  • Figure 9 illustrates in a horisontal view, a number of different usable second parts of frame units.
  • Figure 10 illustrates in a front view, a used loadcarrying unit device for cooperating with the lif ⁇ ting arrangement.
  • Figure 11 illustrates in a side view the unit in figure 10 and somewhat magnified and finally;
  • Figure 12 illustrates a design of a miniforklift built up or constructed in accordance with the present invention.
  • FIG. 1 and 3 it is shown in two perspective views and in one exploded view an arrangement or a lifter 1 for transporting, lifting or lowering on a loadcarrying devi ⁇ ce 9 resting load (not shown in figures 1 and 2).
  • the lifter 1 thus rests on a supporting surface 2 and con ⁇ sists of against the surface restable base unit or main part
  • the main part 3 contains, not here shown, a drive machinery, necessary batteries and one electric or electronic control system.
  • the drive machinery is designed to be able to drive a treaded shaft, incorporated in the beam section, in either of two directons, which effects a unit 8 and a load carrier 9 to move upwards or downwords.
  • the main part 3 shows a first part 13a in a first two-part connecting arrangement 13, where the second part 13b is as ⁇ signed to one end part 4a of said beam section 4.
  • the connecting arrangement 13 can consist of known clamping means.
  • the main part 3 also shows a first part 14a in a second two- part connecting arrangement 14, where the second part 14b is assigned to said frame unit 5 for a ridgid and firm but ea ⁇ sily detachable cooperation between the two units.
  • said frame structure 5 is to be two-parted; 5a and 5b, and consists of a first part 5a, pro- vided with two end related wheels 6a, 6b where the wheels are oriented close to or adjacent the beam section 4.
  • a second U-shaped or at least generally U-shaped part 5b is also equipped with two end oriented wheels 6c, 6d, where the wheels are oriented to the legs of the U-shaped part and on a greater distance from said beam section 4.
  • Said first and second parts 5a, 5b is shown each with a se ⁇ cond part 14b, 14b' in a two-part connecting arrangement 14, 14' for cooperation with each first part 14a, 14a' in the main part 3 and that said two first parts 5a, 5b are applied to opposite end sections 3a, 3b of the main part.
  • FIG 4 it is illustrated a second embodi ⁇ ment where the first part 45a of the frame unit, with the wheels 46a, 46b, is oriented with a greater distance from each other then the distance in figure 3.
  • the wheels 46c, 46d are arranged on a grea ⁇ ter distance from each other then the distanse shown in figu ⁇ re 3.
  • Figure 5 is intended to show that the main part 3 can coope ⁇ rate with different lengths of beam sections 4 and figure 5 shows four different lengths in figure 5A, 5B, 5C, 5D.
  • the lifting-hight can be desided only by chosing between a number of different accessable beam sections.
  • a used beam section is mounted in one of different angles to the main part, diverging from the right angle.
  • the device 8 will then be so angled that the loadcar ⁇ rying device kan adapt any desired angle against the horison ⁇ tal plane or the loadcarrying device 9 can be angled horison- tally even though the beam section is angled.
  • Figure 5D shows further that a short or long handle 50 (50') can via a not shown connecting arrangement be mounted to the beam section 4 at a preferred height 4' and that said handle 50 can be equpped with a device 10 for electrically activa ⁇ ting the lifting arrangement and the electronic control sys ⁇ tem.
  • Figure 6 is ment to show a side projection of a loadcarrying device, on which necessary load shall be applyed and that the load carrier consists of one fork or a plane or two parallel oriented forks 69, each equipped with an angled arm 61 and eventually a hook arrangement 62, designed to cooperate with to the lifting arrangement 7 incorporated device, in form of a carrier 7a.
  • figure 7 shows an alternative design where the liftforks 79 are horisontaly movable in a profile 71 via opposite end related wheels and there the profile 71 is at- tatched to the device 8, where the device 8 will later be described with reference to figures 10 and 11.
  • Figure 8 is ment to, in a horisontal view, illustrate a num ⁇ ber of first parts related to said frame structure 5a and they are shown in figures 8A, 8B and 8C in the way that figu ⁇ re 8A shows a design usable as distance for the unit 3 in - height and angeling against the horisontal plane of unit 3, while figure 8B shows a form as already shown in figure 4 and figure 8C is intended to show a form that is somewhat wider.
  • Figure 9 illustrates in a similar way, in a plane view, dif ⁇ ferent forms of the second part 5b related to the frame units where the figures 9A, 9B, 9C and 9D illustrates diffrent de ⁇ signs.
  • Figure 9A illustrates a design with short legs 41, 42 and with a cross beam 43 and with a narrow distance between the legs.
  • Two parallel bars 91, 92 resp. 93, 94 which are equipped with here not shown clamping means, can be inserted into channels in each leg 41, 42 and can with help of the means be expanded to firmly clamp inside the legs. Further the bars 91, 92 and 93, 94, should be inserted into channels in the main part 3 (see figure 3) and expanded in the same way.
  • Figure 9B shows a wider design where the parts 14b' coopera ⁇ tes with the main part 3 in a way as described above, while extended parts 41a, 41b, are arranged to cooperate with the part 45a.
  • Figure 9C shows an alternative design to the one shown in figure 9A.
  • Figure 9D shows a design similar to the one shown in figure 4.
  • the device 8 is shown in a frontal and side projection, including a hook-formed recess 108 designed to cooperate with the carrier 7a. Thereto is shown the incorporation of the C-profil 71 designed to carry a liftingfork assembly with liftforks 79 or simmilar. It is to be noted that the device 8 is shaped mainly by right-angle bending of one piece only of a sheetmetal crea ⁇ ting the surface 101, the nearast surfaces 102, 102a, the surfaces 103, 103a and the surfaces 104, 104a forming an in ⁇ ner cavity 110 designed to cover the main part 3, when the device is in its lowest position or level.
  • the dimensioning of the device 8 can thus be done easily ba ⁇ sed upon an expected load.
  • FIG 12 a mini-forklift, designed in ac ⁇ cordance to the invention, is shown in a side projection, and that corresponding parts have been allotted the same referen ⁇ ce numerals as in figures 1 - 3.
  • the design in figure 12 shows the usa ⁇ ge of a first plane 121 that can be raised and lowered and a fork-arrangement 122, that also can be raised and lowered and that it can be movable sideways in the C-profile 71.
  • an alterna ⁇ tive is offered to eliminate part 5b and extend the minifork lift to the left [rearwardly] with a unit 123 that has to be loaded like a counter-weight which creates a counter-weight forklift.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

This invention refers to an arrangement (11) for transporting, raising and lowering on a loadcarrying device (9) resting load, incorporating against a supporting surface restable main part (3), to the main part mounted vertically oriented beam section (4), to the main part connected frame unit (5), with against the supporting surface resting wheels (6a-6d), to the beam section partly conencted lifting arrangement (7) with means (8) for cooperating with said loadcarrying device and through activation of the lifting arrangement move said loadcarrying device along the beam section and means (10) for electrically activating said loadcarrying device, at which the main part (3) shows a first part in a two-part connecting arrangement, and its second part is assigned at one end part of said beam section, that the main part shows a first part in a two-part connecting arrangement and the second part is assigned to said frame unit for a firm but easily detachable cooperation between the two units. Said frame unit (5) is divided in several parts and consists of a first part (5a), supplied with two or more wheels (6a-6b), where the wheels are oriented close to or adjacent to said beam section and a second U-shaped unit (5b), with two wheels, where the wheels are oriented on a distance from said beam section (4) and that said first and second parts (5a-5b) show each said second part in each of the two-part connecting arrangements for cooperation with each first part in the main unit (3).

Description

Title of invention:
ARRANGEMENT FOR RAISING OR LOWERING OF A LOAD
Technical field
The present invention relates not only to an arrangement for transportation but also to an arrangement for lifting and lowering a load resting on a loadcarrying surface.
More specifically this invention refers to an arrangement in¬ cluding a main part, restable against a supporting surface, to the main part mounted vertically oriented beam section, to the main part mounted frame section, with wheels movable along said supporting surface, to the beam section partly connected lifting device, with means for cooperating with a loadcarrying unit through an electric activation of the lif¬ ting device for moving the loadcarrying unit along the beam section and means for electrically activating said loadcar¬ rying unit, for lifting and lowering said loadcarrying unit.
The present invention is furthermore based on the idea that the main part consists of a first part, of a first two-part connecting arrangement, where the second part is related to one of the end sections of the beam section, and that the main part also consists of a first part, of a second two-part connecting arrangement, where the second part relates to said frame section, for a firm but easily removable co-operation between said two parts.
The present arrangement has been invented primarily as a lif¬ ter and for transportation, lifting and lowering a load of 100 - 200 kg resting on a loadcarrying unit, but the inven¬ tion can also be used for transportation, lifting and lowe¬ ring a load of 400 - 500 kg resting on a loadcarrying unit of a so called "miniforklift".
Background ar±
There are several earlier known examples 'of devices like the above described arrangement. As a referens to the prior art it can be noted a lifting trolley sold by Pronomic, Sollentuna, Sweden under the Trade- name "Lift-O-Flex 1700".
This mobile lifting-trolley discloses the above noted func¬ tions and is equipped with an electrically driven loadcar¬ rying surface for lifting and lowering loads and is intended for use in kitchens, industries, warehouses, drugstores, pos- toffices and the like.
The lifting-trolley is specially designed for lifting and transporting boxes, cartons, cans, sacks, kantins, and the like.
This lifting-trolley consists of two parts, one frame part and one beam section that are easily assembleable and disas- sambleable by means of a two-part connecting arrangement.
A known arrangement for transporting, lifting and lowering a load on a loadcarrying unit or an arrangement according to the present invention will here be called "lifter" even if this invention can be adapted to other mobile units such as forklifts, miniforklifts and the like.
Summary of tha invention
Technical problems
When considering the present standpoint of techniques, as described above, it will be seen that a technical problem resides in the ability to, with simple means, provide a pos¬ sibility to build a lifter with different widths and stabili- tiy by means of one or more chosen components out of a larger groupe of parts, specifically frame parts.
It is also a technical problem to create the possibility to, trough choise of one or several accessable parts, offer dif¬ ferent loadcarrying devices and/or functions. Another technical problem is to realize the importance of coordination of parts for the frame and the loadcarrying arrangeme
A further technical problem is to, with simple means, build an arrangement of this kind from a base part or main part with the aid of different module related parts and which can easily be adapted to specific needs and that an assembled lifter can be able to be rebuild or amended for other needs.
It will also be seen that a technical problem resides in rea¬ lizing the significance and advantage that will be seen in creating a lifter wherein a used frame part can be construc¬ ted in several sections and adapted for cooporation with a main part.
It will also be seen that a technical problem resides in rea¬ lizing the significance and advantage of dividing the frame part into two parts in such a way that the first part can consists of two cooperating wheels, which with or without specific arrangements can easily be attached to the main part, for instance in the form of a beam with two edge orien¬ ted wheels, in a way that the wheels will be oriented adja¬ cent to with the main part cooperating beam section.
It will also be seen that a technical problem resides in rea¬ lizing the significance and advantage of letting a second frame part have a U-shape, seen from above, or at least gene¬ rally U-shaped, with or without for an U-shap characteristic leg connecting or bottom part.
There is also a technical problem in realizing the signifi¬ cance of letting said legs have a wheel each in their outher parts in a way that the wheels will be oriented on a greater distance from said beam section and/or oriented wider then the two wheels mentioned above.
A further technical problem is that of realizing the impor¬ tance of letting said first and second parts or units include a second part, each in their own two-part connecting arrange- ment, for cooperating with its first part in the main unit, and that said two first parts in the main unit shall be adap¬ ted to opposed edges of the main unit.
It must also be seen as a technical problem to realize the significance of using two different two-part connecting ar¬ rangements, that for its function will provide a rigid and firm but easily detachable cooperation between the two units.
It must also be seen as a technical problem to realize the significance and advantage of letting the first part of the frame unit consist of a chosen unit out of several accessable first units, where the essential difference between these units are different distances between their edge-related whe¬ els or that they in an other form is adapted to specific whe- eltypes.
It must also be seen as a technical problem to realize the significance and advantage of letting the second part of the frame unit consists of a chosen unit out of several acces¬ sable second units, where the essential difference between these units are different distances between their legmounted wheels and/or chosen different distances from the beam sec¬ tion.
It must also be seen as a technical problem to realize the advantage of letting the first part of the connecting arrang¬ ement of the frame unit consists of a simple bolt and nut arrangement or the like.
It must also be seen as a technical problem to realize the significance and advantage of letting the second part of the connecting arrangement of the frame unit consist of, among other things, two bars, insertable in each siderelated track or hole in the main unit and a retaining arrangement.
A further technical problem resides in realizing the signifi¬ cance of using a lifting arrangement built in to the beam section consisting of a treaded shaft driven in rotation by means of one in the main unit located drive machinery, where the treads match inside a carrier unit extending through a trace in the beam, where the extending portion of the unit is designed to cooperate with a device and that said device could have a horisontally oriented profile or track that can support in said track suitably arranged forks.
It is also a technical problem to be able to offer a construction of said unit that easily adapts to raised de¬ mands.
It should also be seen as a technical problem in realizing the significance and advantage of designing said unit with two siderelated tracks adapted to cooperation with a loadcar- rier.
Solution
With the intention of solving one or more of the aforesaid technical problems, the present invention takes as its star¬ ting point a lifter or an arrangement for transporting, lif¬ ting or lowering a load resting on a loadcarrying unit, where the arrangement includes one, against a supporting surface resting, main part, one, to the main part mounted, vertically oriented beam section, to the main part mounted frame section with, against the supporting surface resting wheels, to the beam section partly connected lifting arrangement, with means for cooperating with said load-carrying unit, and through activation of the lifting arrangement move the loadcarrying unit along the beam section and means for electrically acti¬ vating said loadcarrying arrangement, at which the main part shows a first part, of a first two-part connecting arrange¬ ment, where the second part is on one of the end sections of the beam section, that the main part consists of a first part, of a second two-part connecting arrangement, where the second part forms part of said frame section, for a firm but easily removable cooperation between said two parts.
It is proposed, in accordance with the invention, that said frame section is divided in several parts consisting of a first part with two wheels, where the wheels preferably are end oriented and oriented adjacent to said beam section and a second U-shaped or at least essentially U-shaped part equip¬ ped with two wheels where the wheels preferable are end ori¬ ented on the legs and oriented on a distance from said beam section, that said first and second parts, each shows a se¬ cond part, in a two-part connecting arrangement, for coopera¬ tion with each first part in the main part and that said two first parts are arranged to opposite end sections of the main part.
As preferred embodiments according to the invention, it is furthermore proposed that the first part of the frame sec¬ tion is chosen from a number of first parts, distinguished by different distances between end related wheels and different types of wheels.
Furthermore it is proposed that the second part of the frame unit is shaped like an "U" and is chosen out of a number of different second parts with the distinction of different dis¬ tances between the leg- and end-related wheels and/or diffβ- rent distances from the beam section.
It is also proposed that to the main part assigned first part of a connecting arrangement consists of a bolt and nut ar¬ rangement or the like while to the main part is assigned said second part of said connecting arrangement and it consists of, among other things, at least two bars insertable in each siderelated track, hole or channel in the main unit.
Furthermore it is proposed that the to the beam section atta¬ ched lifting arrangement consists of a treaded shaft with a carrier unit where the extending portion of the unit is de¬ signed to cooperate with said device that could have a hori- sontally oriented track that can cooperate with in the track horisontally movable and adjustable arranged forks or that said device shows two siderelated tracks or channels adapted for cooperation with a loadcarrier such as lift-forks. Advantages
The advantages primary afforded by the invented arrangement is the possibillity of easily assemblance of lifters in dif¬ ferent sizes, customiced to a chosen lift or load needed and to chosen functions and/or stability primary only by chosing to a frame unit belonging first part, as a first part from a number of available first parts, each of which distinguished mainly only by different distances between wheels and to cho¬ ose the second part of the frame unit as a second part out of a number of different second parts each of which with the main distinction only by different distances between wheels or different types of wheels and/or different distances from the beam section.
Furthermore it is offered a possibility to, based on a main unit, build a small compact lifter or a wider and larger lif¬ ter (miniforklift) adapted to pallets or boxes and the like only by chosing wider frame parts.
The primary characteristic features of a lifter, constructed in accordance with the present invention, are set forth in the characterizing clause of the following Claim 1.
Brief Description of the drawings
Some exemplifying embodiments of the invented arrangement at present preferred will now be described in more detail with reference to the accompanying drawings, in which
Figure 1 illustrates a first embodiment of a lifter wit¬ hout forks seen in one perspective view.
Figure 2 illustrates the lifter in fig. 1 in a second per¬ spective view. Figure 3 illustrates the lifter in fig. 1 and 2, with forks, in a perspective exploded view.
Figure 4 illustrates an alternative design of first and second parts of one frame unit.
Figure 5 illustrates four different versions and lengths of useable beam sections.
Figure 6 illustrates in a side view other arrangement for a loadcarrying device.
Figure 7 illustrates in a side view an alternative arrang¬ ement for a loadcarrying device.
Figure 8 illustrates in a horisontal view, a number of different usable first parts of frame units.
Figure 9 illustrates in a horisontal view, a number of different usable second parts of frame units.
Figure 10 illustrates in a front view, a used loadcarrying unit device for cooperating with the lif¬ ting arrangement.
Figure 11 illustrates in a side view the unit in figure 10 and somewhat magnified and finally;
Figure 12 illustrates a design of a miniforklift built up or constructed in accordance with the present invention.
Description of embodiments at present preferred
Referring to Figures 1 and 3 it is shown in two perspective views and in one exploded view an arrangement or a lifter 1 for transporting, lifting or lowering on a loadcarrying devi¬ ce 9 resting load (not shown in figures 1 and 2). The lifter 1 thus rests on a supporting surface 2 and con¬ sists of against the surface restable base unit or main part
3, to the main part mounted, vertically oriented beam section
4, to the main part 3 mounted frame section 5, with against the supporting surface resting wheels 6, to the beam section 4 partly connected lifting device 7 with means 8 for coopera¬ ting with a loadcarrying unit 9.
The main part 3 contains, not here shown, a drive machinery, necessary batteries and one electric or electronic control system.
The drive machinery is designed to be able to drive a treaded shaft, incorporated in the beam section, in either of two directons, which effects a unit 8 and a load carrier 9 to move upwards or downwords.
The cooperation between the treaded shaft and the drive ma¬ chinery is effected in a known manner.
It is possible to move said load carrier 9 in a controlled way upwards or downwords along the beam section 4 by activa¬ ting the lifting arrangement 7 which is electrically control¬ led by a device 10.
The main part 3 shows a first part 13a in a first two-part connecting arrangement 13, where the second part 13b is as¬ signed to one end part 4a of said beam section 4.
The connecting arrangement 13 can consist of known clamping means.
The main part 3 also shows a first part 14a in a second two- part connecting arrangement 14, where the second part 14b is assigned to said frame unit 5 for a ridgid and firm but ea¬ sily detachable cooperation between the two units.
According to the invention said frame structure 5 is to be two-parted; 5a and 5b, and consists of a first part 5a, pro- vided with two end related wheels 6a, 6b where the wheels are oriented close to or adjacent the beam section 4.
A second U-shaped or at least generally U-shaped part 5b is also equipped with two end oriented wheels 6c, 6d, where the wheels are oriented to the legs of the U-shaped part and on a greater distance from said beam section 4.
Said first and second parts 5a, 5b is shown each with a se¬ cond part 14b, 14b' in a two-part connecting arrangement 14, 14' for cooperation with each first part 14a, 14a' in the main part 3 and that said two first parts 5a, 5b are applied to opposite end sections 3a, 3b of the main part.
With reference to figure 4 it is illustrated a second embodi¬ ment where the first part 45a of the frame unit, with the wheels 46a, 46b, is oriented with a greater distance from each other then the distance in figure 3.
In the same way, the wheels 46c, 46d are arranged on a grea¬ ter distance from each other then the distanse shown in figu¬ re 3.
It is further more seen from figure 4 that to the second part 5b related second part 14b' within the connecting arrangement 14' are exactly matching the two parts 14b' in figure 3 and are designed two cooperate with the main part as in figure 3.
Yet is shown in figure 4 that the U-shaped part, with it's legs 41, 42, and the extensions 41a, 42a, are arranged to cooperate with the end parts of the part 45a, close to or adjacent to the wheels by means of a not shown connecting arrangement.
Figure 5 is intended to show that the main part 3 can coope¬ rate with different lengths of beam sections 4 and figure 5 shows four different lengths in figure 5A, 5B, 5C, 5D. Thus, the lifting-hight can be desided only by chosing between a number of different accessable beam sections. Within the idea of the invention falls also an embodiment incorporating that a used beam section is mounted in one of different angles to the main part, diverging from the right angle. The device 8 will then be so angled that the loadcar¬ rying device kan adapt any desired angle against the horison¬ tal plane or the loadcarrying device 9 can be angled horison- tally even though the beam section is angled.
Figure 5D shows further that a short or long handle 50 (50') can via a not shown connecting arrangement be mounted to the beam section 4 at a preferred height 4' and that said handle 50 can be equpped with a device 10 for electrically activa¬ ting the lifting arrangement and the electronic control sys¬ tem.
Figure 6 is ment to show a side projection of a loadcarrying device, on which necessary load shall be applyed and that the load carrier consists of one fork or a plane or two parallel oriented forks 69, each equipped with an angled arm 61 and eventually a hook arrangement 62, designed to cooperate with to the lifting arrangement 7 incorporated device, in form of a carrier 7a.
With reference to figure 7 shows an alternative design where the liftforks 79 are horisontaly movable in a profile 71 via opposite end related wheels and there the profile 71 is at- tatched to the device 8, where the device 8 will later be described with reference to figures 10 and 11.
Figure 8 is ment to, in a horisontal view, illustrate a num¬ ber of first parts related to said frame structure 5a and they are shown in figures 8A, 8B and 8C in the way that figu¬ re 8A shows a design usable as distance for the unit 3 in - height and angeling against the horisontal plane of unit 3, while figure 8B shows a form as already shown in figure 4 and figure 8C is intended to show a form that is somewhat wider.
It is obvious that there are more designs and embodiments possible within the idea of the invention. Significant for said first parts are that they have been equipped with equivalent holes or means 80a, 80b, (14b), de¬ signed to cooperate with the main part 3 and end oriented means 81, 82, designed to cooperate with the wheels 6a, 6b in figure 3.
Figure 9 illustrates in a similar way, in a plane view, dif¬ ferent forms of the second part 5b related to the frame units where the figures 9A, 9B, 9C and 9D illustrates diffrent de¬ signs.
Figure 9A illustrates a design with short legs 41, 42 and with a cross beam 43 and with a narrow distance between the legs.
Two parallel bars 91, 92 resp. 93, 94, which are equipped with here not shown clamping means, can be inserted into channels in each leg 41, 42 and can with help of the means be expanded to firmly clamp inside the legs. Further the bars 91, 92 and 93, 94, should be inserted into channels in the main part 3 (see figure 3) and expanded in the same way.
Figure 9B shows a wider design where the parts 14b' coopera¬ tes with the main part 3 in a way as described above, while extended parts 41a, 41b, are arranged to cooperate with the part 45a.
Figure 9C shows an alternative design to the one shown in figure 9A.
Figure 9D shows a design similar to the one shown in figure 4.
With reference to figures 10 and 11 the device 8 is shown in a frontal and side projection, including a hook-formed recess 108 designed to cooperate with the carrier 7a. Thereto is shown the incorporation of the C-profil 71 designed to carry a liftingfork assembly with liftforks 79 or simmilar. It is to be noted that the device 8 is shaped mainly by right-angle bending of one piece only of a sheetmetal crea¬ ting the surface 101, the nearast surfaces 102, 102a, the surfaces 103, 103a and the surfaces 104, 104a forming an in¬ ner cavity 110 designed to cover the main part 3, when the device is in its lowest position or level.
The dimensioning of the device 8 can thus be done easily ba¬ sed upon an expected load.
With referense to figure 12 a mini-forklift, designed in ac¬ cordance to the invention, is shown in a side projection, and that corresponding parts have been allotted the same referen¬ ce numerals as in figures 1 - 3.
It is to be noted that the design in figure 12 shows the usa¬ ge of a first plane 121 that can be raised and lowered and a fork-arrangement 122, that also can be raised and lowered and that it can be movable sideways in the C-profile 71.
As the part 5b is detachable from the main part 3 an alterna¬ tive is offered to eliminate part 5b and extend the minifork lift to the left [rearwardly] with a unit 123 that has to be loaded like a counter-weight which creates a counter-weight forklift.
Even though the shown examples illustrate the usage of a cross-beam 43, it must be noted that such a cross-beam can be eliminated.
It will be understood that the invention is not restricted to the aforedescribed and illustrated exemplifying embodiments thereof and that modifications can be made within the scope of the invention as defined in the following Claims.

Claims

Claims
1. An arrangement for transporting, raising and lowering on a loadcarrying device resting load, incorporating against a supporting surface restable main part, to the main part mounted vertically oriented beam section, to the main part connected frame unit, with against the supporting surface resting wheels, to the beam section partly connected lifting arrangement with means for cooperating with said loadcarrying device and through activation of the lifting arrangement move said loadcarrying device along the beam section and means for electrically activating said loadcarrying device, at which the main part shows a first part in a two-part connecting arrangement, and the second part is assigned at one end part of said beam section, that the main part shows a first part in a two-part connecting arrangement and the second part is assigned to said frame unit for a firm but easily detachable cooperation between the two units, c h a r a c t e r i z e d in, that said frame unit is divided in several parts and con¬ sists of a first part, supplied with two or more wheels, whe¬ re the wheels are oriented close to or adjacent to said beam section and a second U-shaped unit, with two wheels, where the wheels are oriented on a distance from said beam section and that said first and second parts shows each said second part in each of the two-part connecting arrangements for coo¬ peration with each first part in the main unit.
2. An arrangement according to claim 1, c h a r a c t e ¬ r i z e d in, that the first port related to the frame unit consists of one part, chosen out of a number of different first parts with the distinction of different distances bet¬ ween the wheels or with different wheeltypes
3. An arrangement according to claim 1, c h a r a c t e ¬ r i z e d in, that the second part related to the frame unit consists of one part, chosen out of a number of different second parts with the distinction of different distances bet¬ ween the wheels and/or different distances from the beam sec¬ tion.
4. An arrangement according to claim 1, c h a r a c t e ¬ r i z e d in, that the first part related to the frame unit of a connecting arrangement consists of a bolt (and nut) ar¬ rangement or the like.
5. An arrangement according to claim 1, c h a r a c t e ¬ r i z e d in, that the second part related to the frame unit of a connecting arrangement consists of, among other things, two bars insertable each in a track or channel in the main part.
6. An arrangement according to claim 1, c h a r a c t e ¬ r i z e d in, that to the beam section related lifting ar¬ rangement consists of a treaded shaft with a carrier unit with an extended portion of the unit designed to cooperate with said device.
7. An arrangement according to claim 6, c h a r a c t e ¬ r i z e d in, that said device shows a horisontally oriented track that can cooperate with in the track movable arranged forks.
8. An arrangement according to claim 6, c h a r a c t e ¬ r i z e d in, that said device shows two siderelated tracks or channels adapted to cooperate with a loadcarrier.
9. An arrangement according to claim 5, c h a r a c t e ¬ r i z e d in, that each bar is two-parted and equipped with means for expanding the parts for a clamping function in said main part.
PCT/SE1996/000572 1995-05-02 1996-05-02 Arrangement for raising or lowering of a load WO1996034787A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU56616/96A AU5661696A (en) 1995-05-02 1996-05-02 Arrangement for raising or lowering of a load

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9501615A SE506896C2 (en) 1995-05-02 1995-05-02 Device for raising or lowering a load
SE9501615-0 1995-05-02

Publications (1)

Publication Number Publication Date
WO1996034787A1 true WO1996034787A1 (en) 1996-11-07

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ID=20398161

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (3)

Country Link
AU (1) AU5661696A (en)
SE (1) SE506896C2 (en)
WO (1) WO1996034787A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000068059A1 (en) * 1999-05-06 2000-11-16 Bt Industries Ab A hand pallet truck and a method for its manufacturing
EP3144263A1 (en) * 2015-09-11 2017-03-22 Expresso Deutschland Gmbh Lifting device
EP3144265A1 (en) * 2015-09-11 2017-03-22 Expresso Deutschland Gmbh Lifting device with a chassis frame

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2014306A1 (en) * 1968-06-27 1970-04-17 Lansing Bagnall Ltd
SE388595B (en) * 1973-07-02 1976-10-11 Woodward Mfg & Sales Co HAND CART WITH ELECTRIC MOTOR-DRIVEN LIFTING SCREW
SE411114B (en) * 1978-04-25 1979-12-03 Bodin Ab Maskin Ove FORK TRUCK WITH BODY PART FOR ADJUSTING THE HORIZONTAL DISTANCE BETWEEN THE FORKS PART FOR SIDE SHIFT OF THE FORKS
EP0061985A2 (en) * 1981-03-26 1982-10-06 Henri Laborie Hoisting and handling apparatus
DK151787B (en) * 1984-12-19 1988-01-04 Nh Intern Transport A S FORKLIFT TRUCK WITH HEIGHT MOVABLE SUPPORT ROLLS AT THE OUTER END OF THE FORKS

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2014306A1 (en) * 1968-06-27 1970-04-17 Lansing Bagnall Ltd
SE388595B (en) * 1973-07-02 1976-10-11 Woodward Mfg & Sales Co HAND CART WITH ELECTRIC MOTOR-DRIVEN LIFTING SCREW
SE411114B (en) * 1978-04-25 1979-12-03 Bodin Ab Maskin Ove FORK TRUCK WITH BODY PART FOR ADJUSTING THE HORIZONTAL DISTANCE BETWEEN THE FORKS PART FOR SIDE SHIFT OF THE FORKS
EP0061985A2 (en) * 1981-03-26 1982-10-06 Henri Laborie Hoisting and handling apparatus
DK151787B (en) * 1984-12-19 1988-01-04 Nh Intern Transport A S FORKLIFT TRUCK WITH HEIGHT MOVABLE SUPPORT ROLLS AT THE OUTER END OF THE FORKS

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000068059A1 (en) * 1999-05-06 2000-11-16 Bt Industries Ab A hand pallet truck and a method for its manufacturing
EP3144263A1 (en) * 2015-09-11 2017-03-22 Expresso Deutschland Gmbh Lifting device
EP3144265A1 (en) * 2015-09-11 2017-03-22 Expresso Deutschland Gmbh Lifting device with a chassis frame
EP3144265B1 (en) 2015-09-11 2021-01-13 Expresso Deutschland Gmbh Lifting device with a chassis frame

Also Published As

Publication number Publication date
SE506896C2 (en) 1998-02-23
SE9501615D0 (en) 1995-05-02
AU5661696A (en) 1996-11-21
SE9501615L (en) 1996-11-03

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