NL2022330B1 - Power operated mover - Google Patents

Power operated mover Download PDF

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Publication number
NL2022330B1
NL2022330B1 NL2022330A NL2022330A NL2022330B1 NL 2022330 B1 NL2022330 B1 NL 2022330B1 NL 2022330 A NL2022330 A NL 2022330A NL 2022330 A NL2022330 A NL 2022330A NL 2022330 B1 NL2022330 B1 NL 2022330B1
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NL
Netherlands
Prior art keywords
trolley
spring
coupling
drive unit
power drive
Prior art date
Application number
NL2022330A
Other languages
Dutch (nl)
Inventor
Jan Duits Pieter
Original Assignee
Movexx Int B V
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 Movexx Int B V filed Critical Movexx Int B V
Priority to NL2022330A priority Critical patent/NL2022330B1/en
Application granted granted Critical
Publication of NL2022330B1 publication Critical patent/NL2022330B1/en

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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
    • B62B3/0643—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 the wheels remaining stationary while the supporting surface is lifted
    • 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
    • B62B3/0612—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 power operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/0026—Propulsion aids
    • B62B5/0079—Towing by connecting to another vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
    • B62B2301/20—Resilient wheel suspension using springs
    • B62B2301/23—Resilient wheel suspension using springs the pressure of the wheel on the ground being controlled, e.g. by the load or the wheel slip

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

The current invention relates to a power operated mover configured for pushing and pulling a trolley or any other load cart and comprising; - a main frame supported by at least one traction wheel, - a coupling which is connected to the main frame by a suspension system configured to engage with a counter-coupling of the trolley for moving the trolley and a load placed on the trolley, - herein the suspension system comprises a spring system configured to apply a spring pressure to the trolley through the coupling and the counter-coupling in order to improve traction ofthe at least one traction wheel, - an activation system configured to bring the coupling into engagement with the counter-coupling and bias the spring system.

Description

Power operated mover Field of the invention The present invention relates to a power operated mover configured for pushing and pulling a trolley or any other load cart. Such a mover couples to a trolley, or any other suitable load cart, and displaces this horizontally. The mover itself does not carry a load. In particular, the mover is a compact hand cart, however the invention is not restricted to hand carts. In most use cases, such a hand cart has a relatively low weight compared with the allowed weight of the trolley moved by the hand cart. Usually, the mover is electrically powered.
Background art Such a power operated mover is known from EP2033871 (A2) that shows a transport aid, comprising a chassis provided with at least two wheels and at least one support point, a frame supported on the chassis, an electric drive having a battery and an electric motor that is drive- connected to at least one of the wheels, a manual operation console on the frame provided with one or more operating members for actuating the electric drive, and a carrier which is connected to the frame by a suspension means and defines a load-bearing surface.
Because of the low weight of the power operated mover compared with the total weight of the mover plus trolley coupled to the mover, traction of wheels is important and sometimes poor and therefore needs improvement.
Summary of the invention The present invention seeks to a provide power operated mover configured for pushing and pulling a trolley, wherein the traction of one or more wheels is improved. Therefore the present invention provides a power operated mover configured for pushing and pulling a trolley or any other load cart and comprising; - a main frame supported by at least one traction wheel, - a coupling which is connected to the main frame by a suspension system configured to engage with a counter-coupling of the trolley for moving the trolley and a load placed on the trolley, - herein the suspension system comprises a spring system configured to apply a spring pressure to the trolley through the coupling and the counter-coupling in order to improve traction of the at least one traction wheel, - an activation system configured to bring the coupling into engagement with the counter-coupling and bias the spring system.
The spring system enables to gradually apply the spring pressure to the trolley in order to gently couple the mover to the trolley. The spring system allows better control over the portion of the weight of the trolley that is transferred to the mover and therefore improves traction of drivenwheels as al well not-driven wheels. Also, importantly the spring system avoids tilt or even tip over of a trolley because the spring system facilitates maintaining contact between the wheels of the trolley and the underground surface during use, also on uneven surfaces because the spring system accommodates the unevenness. The counter-coupling can be a standard part of a trolley like a transverse beam. The coupling, like a hook, can engage with the beam and effect movement of the trolley.
In an embodiment of the power operated mover, the activation system comprises an actuator for raising and/or lowering the coupling. The actuator is preferably coupled in series with the spring system. The actuator provides even more control over the portion of the weight of the trolley that is transferred to the mover. The actuator can be configured to effect translation of the coupling, however a rotation of the coupling is conceivable as well.
In an embodiment, the power operated mover comprising more than one axis carrying transport wheels. The more than one axis assure a defined angular position, about the horizontal, of the mover with respect to the underground and therefore provides even more control over the portion of the weight of the trolley that is transferred to the mover. In other words, the mutual position of the mover and the trolley is better defined.
In an embodiment of the power operated mover, the suspension system comprises a mounting plate and a base plate that form a housing for at least the actuator of the activation system and the spring system. This housing protects the actuator and the spring system and assure a robust functioning in a sometimes harsh industrial environment. The coupling connects with the mounting plate. Therefore, the mounting plate can be provided with a hole pattern, slots or any other suitable means to mount the coupling to the mounting plate. The base plate is arranged between the mounting plate and the main frame in order to form the housing.
In an embodiment of the power operated mover, the spring system comprises a symmetry with respect to a vertical midplane of the suspension system. This enables to apply and transfer the spring pressure in an even way. In particular, the spring system comprises two parallel springs located on either side of the vertical midplane.
In an embodiment of the power operated mover, the spring system comprises one or more of a gas spring device, a coil spring, a compression spring or any other suitable type of spring. A gas spring can be more easily adjusted and dampening properties can be easily integrated.
In an embodiment of the power operated mover, the actuator and spring system are slidably connected through a slide member. This allows biasing the mounting plate with respect to the base plate while enabling a considerable contact area for transfer of force. In this case, the 40 mounting plate and the base plate are mutually moveable through a sliding coupling by the slidemember. It is however conceivable that the mounting plate and the base plate are mutually moveable through, rollers, a scissors link or any other suitable link mechanism.
In an embodiment of the power operated mover, the spring system is in sliding contact with the slide member. The spring system is in sliding contact with the slide member through the mounting plate.
In an embodiment of the power operated mover, the slide member is slidably coupled with the main frame. This allows biasing of the mounting plate with respect to the base plate independently of height adjustment of the mounting plate.
In an embodiment of the power operated mover, wherein the slide member is slidably coupled with the main frame through a guide profile, like opposite U-profiles. This allows the U profiles to contribute to an even more protective housing for the actuator and spring system. It will be clear that the guide profile can be integrated in any suitable sheet metal part, or can be any suitable profile, like the U-profile or as an alternative a H-profile.
In an embodiment of the power operated mover, the slide member and the guide profile are configured to support at least the mounting plate along substantially the entire vertical height of the mounting plate. This facilitates transfer of forces to support a portion of the load of a trolley that is moved by the mover.
In an embodiment of the power operated mover, the spring system is configured such that the possible deflection of the spring system is at least 5 mm, and preferably between 5 mm and 100 mm. This allows accommodation of the unevenness of the underground while maintaining contact between the mover and a trolley. Short description of drawings The present invention will be discussed in more detail below, with reference to the attached drawings, in which Fig. 1 is a power operated mover according to the invention in perspective view; fig. 2A is a side view of the mover of fig. 1; fig. 2B is a front view of the mover of fig. 1; fig 3 is the mover of fig. 1 coupled with a trolley in perspective view; fig. 4 is a detail of the mover of fig. 1 in perspective view; fig. 5 is the detail of fig. 4 in partly disassembled perspective view; fig. 8 is the detail of fig. 4 in top view; and fig. 7 is a detail of a further embodiment of a mover according to the invention in perspective view. 40
Fig. 1 is a power operated mover 1, further mover 1. The mover 1 comprises a main frame 1. In order to connect to a trolley, the mover 1 comprises a coupling 5. The coupling 5 is configured to engage with a counter-coupling of a trolley for moving the trolley and a load placed on the trolley. The coupling 5 is connected to the main frame 3. The coupling 5 has a hook 23 that in use hooks a counter- coupling of a trolley. The hook 23 has a load bearing surface 7 that defines a point of application of a supporting force F. The coupling 5 has two hooks 23 in this case. One hook 23, or any other suitable number of hooks 23 may suffice. The hooks 23 are spaced apart and this way the coupling 5 is configured to engage with a trolley such that the mover 1 and the trolley are fixedly coupled with respect to rotations around the vertical. In other words, the mover 1 and the trolley rotate as a unity around the vertical. The coupling 5 is connected to the main frame 3 by a suspension system 6. The suspension system 6 will be described in more detail referring to fig. 4 — 6. The coupling 5 is mounted to a mounting plate 25 of the suspension system 6. The suspension system 6 is configured to adjust the height position of the coupling 5. In this case, this allows to hook the hooks 23 behind a counter-coupling of a trolley.
The mover 1 comprises a battery unit 20. The battery unit 20 powers the mover 1 in order to move the mover 1 and a trolley coupled with the mover 1. The battery unit 20 is centrally arranged with the mover 1 which facilitates handling of the mover 1. Any other arrangement of the battery unit 20 is conceivable.
The mover 1 has a control console 21. The control console 21 is arranged at working height by an arm 22. In this case, the arm 22 is hingeably connected to the main frame 3. The arm 22 is hingeable around a horizontal arm axis 17. It will be clear that control console 21 can be arranged with the mover 1 in any suitable way.
Fig. 2A is a side view of the mover of fig. 1. The main frame 3 is supported by at least one traction wheel 4. The traction wheel 4 can rotate around a vertical axis 18 in order to steer the mover 1. The control console 21, arm 22 and traction wheel 4 rotate as a unity around the vertical axis 18. A fork member 36 is mounted on the front of the mover 1. The fork 36 is fixedly connected to the main frame 3. In use, the fork 36 extends below a trolley. A support wheel 37 is mounted at the free end of the fork member 36. The support wheel 37 is rotatable around axis 38. Thus, the mover 1 comprises more than one axis carrying transport wheels. The support wheel 37 is arranged past the coupling 5 seen in the front direction. The front direction is from the mover 1 to a trolley coupled to the mover 1. The point of application of the force F on the coupling 5 is between the support wheel 37 and the traction wheel 4. Therefore, the application of the force F on the coupling 5 increases the load on the traction wheel 4 and therefore, traction is improved.
Also other wheel configurations of the mover 1 without the support wheel 37 do have the benefit that application of the force F on the coupling 5 increases the load on the traction wheel 4. An example of such a configuration (not shown) is when the traction wheel 4 is the most forward wheel of the mover 1 and closest to the coupling 5. 40
Fig. 2B is a front view of the mover of fig. 1. The fork member 36 is not shown here. The traction wheel 4 is rotatable around axis 12. The frame 3 is further supported by support wheels 14a and 14b. Here, support wheel 14a is rotateable around an axis 13. These support wheels 14a, 14b can be fixed wheels or swivel wheels or a combination thereof depending on the use and purpose of 5 the mover 1. In this case, auxiliary wheels 15a, 15b are provided at both sides of the mover 1. These auxiliary wheels 15a, 15b do normally not contact the surface but prevent the mover 1 from tipping over if needed. Fig 3 is the mover 1 of fig. 1 coupled with a trolley 2 in perspective view. The trolley 2 carries his own load (not shown). The trolley 2 is therefore provided with a number of wheels 33a, 33b, 33c. These wheels 33a, 33b, 33c can be fixed wheels or swivel wheels or a combination thereof depending on the use and purpose of the trolley 2. The counter-coupling of the trolley 2 can be any suitable member of the trolley 2 like e.g. a transverse beam or edge. Fig. 4 is a detail of the mover 1 of fig. 1 in perspective view. The shown detail is the suspension system 6. The suspension system is the interface between the main frame 3 and the coupling 5. Here, the suspension system 6 comprises a horizontal transverse beam member 31, in this case a hollow box profile. The beam member 31 is fixedly connected to the main frame 3. Two opposite U-profiles 32a, 32b, or also channel beams, are mounted to the beam member 31 and extend vertically up from the beam member 31. The U-profiles 32a, 32b are arranged with their open sides facing towards each other. It will be clear that the support function of the transverse beam member 31 can be obtained in any suitable way, like integration in other sheet metal parts of the mover 1. The Fig. 5 is the detail of fig. 4 in partly disassembled perspective view. The mounting plate 25 is removed to show an interior of the suspension system 6. The suspension system 6 comprises a spring system 8 and an activation system 10. The spring system 8 applies a spring pressure to the trolley 2 through the coupling 5 and the counter-coupling of the trolley in order to improve traction of the at least one traction wheel. The spring system 8 is configured to apply the spring pressure to the trolley in order to improve traction of the at least one traction wheel 4. The spring system 8 determines the vertical force between the mover 1 and the trolley 2. In this case, the spring system 8 comprises two gas spring devices 9. One gas spring device 9, or any suitable number of gas spring devices 9 will work. It will be clear that a coil spring, a compression spring or any other suitable type of spring may suffice. The activation system 10 is configured to bring the coupling 5 into engagement with the counter- coupling of the trolley 2 and bias the spring system 8. The spring system 8 is biased against the load of the trolley 2. The activation system 10 comprises an actuator 11. The actuator 11 is configured for raising and/or lowering the coupling 5. The actuator 11 is coupled in series with the spring system 8. Therefore, the spring system 8 is coupled to the actuator 11 through a base plate
26. The spring system 8 is coupled at one end to the base plate 26 through the glide member 16. 40 The other end of the spring system 8 is coupled to the mounting plate 25 through a mounting means
29. The actuator 11 is mounted with the main frame 3 while the base plate 26 is moveable with respect to the main frame 3 and moveable by the actuator 11. The spring system 8 and mounting plate 25 normally move with the base plate 26 as a unity, at least as long as the coupling 5 is not in engagement with the counter-coupling of the trolley 2. However, the mounting plate 25 and the base plate 26 are mutually moveable because of the spring system 8 between the mounting plate 25 and the base plate 26. Thus, when the coupling 5 is in engagement with the counter-coupling of the trolley 2, the spring system 8 is biased and the base plate 26 moves with respect to the mounting plate 25. The activation system 10 is configured to bring the coupling 5 into engagement with the counter-coupling of the trolley 2 and bias the spring system 8. The spring system 8 is biased against the load of the trolley 2. Fig. 6 is the detail of fig. 4 in top view. The a mounting plate 25 and the base plate 26 form a housing forthe actuator 11 and the two gas spring devices 9. Therefore, the mounting plate 25 and the base plate 26 extend in parallel. The mounting plate 25 has a stepped configuration that increases the interior space of the housing. The mounting plate 25 and base plate 26 connect at both sides through a pair of slide members 16. Therefore, a closed housing is obtained, at least in circumferential direction. That closed configuration of the housing is beneficial for transfer of forces from the stationary parts, in short the U-profiles 32a, 32b, of the suspension system 6 and the moveable parts, that is the base plate 26 and the mounting plate 25, of the suspension system 6. In this case, the U-profiles 32a, 32b extend along the entire vertical height of the housing in order to support transfer of forces. It may be conceivable that the U-profiles 32a, 32b extend along a portion of the vertical height of the housing. As described, the mounting plate 25 and base plate 26 connect at both sides through a pair of slide members 16. Therefore, the actuator 11 and the gas spring devices 9 of the spring system 8 are connected through the slide members 16, here via the base plate 26. This allows height adjusting of the coupling 5 and at the same time deflection of the spring system 8 for biasing the spring system 8.
Here, the spring system 8 is in sliding contact with the slide member 16 through the mounting plate 25 while the base plate 26 is fixedly mounted with the slide members 16 and moves in unity therewith.
It may be conceivable that in another not shown embodiment the base plate 26 is in sliding contact with the slide members 16 while the mounting plate 25 is fixedly mounted with the slide members 16 and moves in unity therewith. As long as the coupling 5 is height adjustable and the base plate 26 and the mounting plate 25 are mutually moveable in order to bias the spring system
8. To put it in another way, the suspension system 6 comprises first and second slideable plate members 25, 26, wherein the coupling 5 is connected to the first plate member 25 and the second plate member 26 is connected to the main frame 3 and the spring system 8 is positioned to bias the first plate member 25 with respect to the second plate member 26.
The slide members 16 comprise any suitable plastic. The slide members 16 are slidably coupled with the main frame 3. Here, the slide members 16 are slidably coupled with the main frame 3 through the opposite U-profiles 32a, 32b. The slide members 16 have opposite contact faces to contact both legs of the U-profiles 32a, 32b. The slide members 16 comprise a slot 28.
The slot 28 is configured to enclose a section 39 of the mounting plate 25 in a sliding manner. Here, the spring system 8 comprises a symmetry with respect to a vertical midplane 30 of the suspension system 6. Here, the spring system 8 comprises two gas spring devices 9 located on either side of the vertical midplane 30. The two gas spring devices 9 are symmetrically arranged with respect to the midplane 30. The two gas spring devices 9 are parallel arranged and act in parallel. It will be clear that an asymmetric spring system 8 having one or more gas spring device(s) is conceivable as well.
Fig. 7 is a detail of a further embodiment of a mover 1 according to the invention in perspective view. An alternative suspension system 35 is shown. The suspension system 35 is coupled to a hingeable coupling 34. The coupling 34 is hingeably around a horizontal axis 19. The activation system 10 and the spring system 8 are series coupled.
The present invention has been described above with reference to a number of exemplary embodiments as shown in the drawings. Modifications and alternative implementations of some parts or elements are possible, and are included in the scope of protection as defined in the appended claims.

Claims (13)

l. Bekrachtigde aandrijfeenheid, geconfigureerd voor het duwen en trekken van een trolley of een ander laadwagentje en omvattend, - een hoofdframe ondersteund door ten minste één tractiewiel, - een koppeling die is verbonden met het hoofdframe door een ophangsysteem geconfigureerd om te koppelen met een tegenkoppeling van de trolley teneinde de trolley en een belasting geplaatst op de trolley te bewegen, - waarbij het ophangsysteem een veersysteem omvat ingericht om een veerdruk op de trolley toe te passen door de koppeling en de tegenkoppeling teneinde tractie van het ten minste ene tractiewiel te verbeteren, - een activeringssysteem dat is geconfigureerd om de koppeling in ingrijping te brengen met de tegenkoppeling en het veersysteem te spannen.l. Power drive unit, configured to push and pull a trolley or other loading cart and comprising, - a main frame supported by at least one traction wheel, - a coupling connected to the main frame by a suspension system configured to couple with a counter coupling of the trolley in order to move the trolley and a load placed on the trolley, the suspension system comprising a spring system adapted to apply a spring pressure to the trolley through the coupling and the counter-coupling to improve traction of the at least one traction wheel, a activation system configured to engage the clutch with the negative clutch and tension the suspension system. 2. Bekrachtigde aandrijfeenheid volgens een voorgaande conclusie, waarbij het activeringssysteem een actuator omvat voor het heffen en / of neerlaten van de koppeling, en bij voorkeur in serie gekoppeld met het veersysteem.Power drive unit according to any preceding claim, wherein the activation system comprises an actuator for raising and / or lowering the clutch, and preferably coupled in series with the suspension system. 3. Bekrachtigde aandrijfeenheid volgens een voorgaande conclusie, omvattende meer dan één as die transportwielen draagt.Power drive unit according to any preceding claim, comprising more than one axle carrying transport wheels. 4. Bekrachtigde aandrijfeenheid volgens een voorgaande conclusies, waarbij het ophangsysteem een bevestigingsplaat en een basisplaat omvat die een behuizing vormen voor ten minste de actuator van het activeringssysteem en het veersysteem.Power drive unit according to any preceding claim, wherein the suspension system comprises a mounting plate and a base plate that form a housing for at least the actuator of the activation system and the spring system. 5. Bekrachtigde aandrijfeenheid volgens een voorgaande conclusie, waarbij het veersysteem een symmetrie omvat met betrekking tot een verticaal middenvlak van het ophangsysteem.The power drive unit of any preceding claim, wherein the spring system includes symmetry with respect to a vertical center plane of the suspension system. 6. Bekrachtigde aandrijfeenheid volgens een voorgaande conclusie, waarbij het veersysteem twee parallelle veren omvat die zich aan weerszijden van het verticale middenvlak bevinden.The power drive unit of any preceding claim, wherein the spring system comprises two parallel springs located on opposite sides of the vertical center plane. 7. Bekrachtigde aandrijfeenheid volgens een voorgaande conclusie, waarbij het veersysteem één of meer omvat van een gasveerinrichting, een schroefveer, een drukveer of een andere geschikt type veer.The power drive unit of any preceding claim, wherein the spring system comprises one or more of a gas spring device, a coil spring, a compression spring or other suitable type of spring. 8. Bekrachtigde aandrijfeenheid volgens een voorgaande conclusie, waarbij de actuator en veersysteem zijn verbonden door middel van een glijorgaan.A power drive unit according to any preceding claim, wherein the actuator and spring system are connected by means of a sliding member. 9. Bekrachtigde aandrijfeenheid volgens een voorgaande conclusie, waarbij het veersysteem in glijdend contact is met het glijorgaan.The power drive unit of any preceding claim, wherein the spring system is in sliding contact with the slider. 10. Bekrachtigde aandrijfeenheid volgens een voorgaande conclusie, waarbij het glijorgaan verschuifbaar is gekoppeld met het hoofdframe.The power drive unit of any preceding claim, wherein the slider is slidably coupled to the main frame. 11. Bekrachtigde aandrijfeenheid volgens een voorgaande conclusie, waarbij het glijorgaan verschuifbaar is gekoppeld met het hoofdframe door middel van een geleidingsprofiel zoals tegenoverliggende U-profielen.Power drive unit according to any preceding claim, wherein the slider is slidably coupled to the main frame by means of a guide profile such as opposed U-profiles. 12. Bekrachtigde aandrijfeenheid volgens een voorgaande conclusie, waarbij het glijorgaan en het geleideprofiel zijn geconfigureerd om ten minste de bevestigingsplaat langs in hoofdzaak de gehele verticale hoogte van de bevestigingsplaat te ondersteunen.The power drive unit of any preceding claim, wherein the slider and guide profile are configured to support at least the mounting plate along substantially the entire vertical height of the mounting plate. 13. Bekrachtigde aandrijfeenheid volgens een voorgaande conclusie , waarbij het veersysteem zodanig is uitgevoerd dat de mogelijke vervorming van het veersysteem ten minste 5 mm en bij voorkeur tussen 5 mm en 100 mm bedraagt.Power drive unit according to any preceding claim, wherein the spring system is configured such that the possible deformation of the spring system is at least 5 mm and preferably between 5 mm and 100 mm. -0-0-0-0-0-0--0-0-0-0-0-0-
NL2022330A 2018-12-31 2018-12-31 Power operated mover NL2022330B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023144566A1 (en) * 2022-01-31 2023-08-03 M-Mover Holdings Limited A load transporting apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2334016A (en) * 1998-02-06 1999-08-11 Mastermover Int Ltd A load towing device
EP2033871A2 (en) 2007-09-06 2009-03-11 Movexx International B.V. Transport aid with attachment
DE202014003501U1 (en) * 2014-04-29 2014-09-25 Expresso Deutschland Gmbh Motor-driven industrial truck for traction of a load carrier
WO2018172932A2 (en) * 2017-03-20 2018-09-27 Newell Gregory Hitching cart mover

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2334016A (en) * 1998-02-06 1999-08-11 Mastermover Int Ltd A load towing device
EP2033871A2 (en) 2007-09-06 2009-03-11 Movexx International B.V. Transport aid with attachment
DE202014003501U1 (en) * 2014-04-29 2014-09-25 Expresso Deutschland Gmbh Motor-driven industrial truck for traction of a load carrier
WO2018172932A2 (en) * 2017-03-20 2018-09-27 Newell Gregory Hitching cart mover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023144566A1 (en) * 2022-01-31 2023-08-03 M-Mover Holdings Limited A load transporting apparatus

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