NL2028148B1 - a screen lift device - Google Patents

a screen lift device Download PDF

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Publication number
NL2028148B1
NL2028148B1 NL2028148A NL2028148A NL2028148B1 NL 2028148 B1 NL2028148 B1 NL 2028148B1 NL 2028148 A NL2028148 A NL 2028148A NL 2028148 A NL2028148 A NL 2028148A NL 2028148 B1 NL2028148 B1 NL 2028148B1
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NL
Netherlands
Prior art keywords
unit
screen
lift
lift device
base unit
Prior art date
Application number
NL2028148A
Other languages
Dutch (nl)
Inventor
Johannes Van Der Werff Jeichienus
Wilhelmus Thomas Beerten Stef
Original Assignee
Bordrijk Intellectual Property B V
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Priority to NL2028148A priority Critical patent/NL2028148B1/en
Application granted granted Critical
Publication of NL2028148B1 publication Critical patent/NL2028148B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/043—Allowing translations
    • F16M11/046—Allowing translations adapted to upward-downward translation movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/28—Undercarriages for supports with one single telescoping pillar
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/38—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by folding, e.g. pivoting or scissors tong mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

A screen lift device (100), comprising: - a base unit (101) arranged for supporting said screen lift device (100) on a ground surface; - a lift unit (103) comprising a display screen unit connection arrangement (105) arranged for connecting a display screen unit (150) to said lift unit (103) and a lift arrangement (107) arranged for adjusting a distance in a first direction (D) between said display screen unit connection arrangement (105) and said base unit (101); and - a pivot arrangement (109) pivotably connecting said base unit (101) to said lift unit (103) and arranged for pivoting said lift unit (103) relative to said base unit (101) between a first position in which said screen lift device (100) is in a folded condition for transport purposes and a second position in which said screen lift device (100) is in an operational condition.

Description

Title: a screen lift device Description: The present disclosure relates to a screen lift device comprising a base unit arranged for supporting the screen lift device on a ground surface and a lift unit.
The lift unit comprises a display screen unit connection arrangement arranged for connecting a display screen unit to the lift unit and a lift arrangement arranged for adjusting a distance in a first direction between the display screen unit connection arrangement and the base unit.
A screen lift device of this type, for example in combination with an interactive whiteboard, is known from EP 3 516 286 B1. The known device is height- adjustable, so that the display screen unit can be positioned at a height that is ergonomic for the user. The display screen device is used, for example, by teachers to support their lessons, although other applications, for example in business, are of course conceivable.
The objective of the present disclosure is to provide a screen lift device that requires a relative small volume for transportation while avoiding a relative cumbersome installation at the premises of the user.
The objective is achieved by providing the screen lift device with a pivot arrangement pivotably connecting said base unit to said lift unit and arranged for pivoting said lift unit relative to said base unit between a first position in which said screen lift device is in a folded condition for transport purposes and a second position in which said screen lift device is in an operational condition.
The present disclosure relies at least partly on the insight that the known screen lift device, after completion of assembly, is placed in a package with the lift unit in the upright direction, while the base unit extends along the ground surface thereby requiring a relative large package. An alternative approach wherein the base unit and the lift unit are separately assembled and only completing the assembly at the premises of the client is rather attractive from a transportation point of view, but results in arelative long assembly time at the clients’ premises while limiting the possibilities for conducting a final test at the assembly factory. By providing the pivot arrangement, the lift unit may be folded, preferably in a clam shell manner, towards the base unit thereby allowing to package the screen lift device in a relative small package. In addition, the provision of the pivot arrangement allows a complete assembly of the screen lift device with relative little effort for bringing the screen lift device in the folded position.
Preferably, in said first position a height of said screen lift device is lower than in said second position. This is beneficial for allowing a package for transportation of the screen lift device that has a reduced dimension in at least one direction as compared to the known screen lift device, thereby allowing more packages to be stacked or placed next to each other in for instance a ISO-container or in a transport vehicle.
It is advantageous, if in said first position a component of said first direction perpendicular to said ground surface is smaller than a component of said first direction parallel to said ground surface. This is beneficial for allowing a package for transportation of the screen lift device that has a reduced height as compared to the known screen lift device thereby allowing more packages to be stacked for instance in a ISO-container or in a transport vehicle.
In a practical embodiment of the device according to the first aspect of the present disclosure, in said first position said first direction is parallel to said ground surface. This is beneficial for allowing a package for transportation of the screen lift device that has a reduced height as compared to the known screen lift device thereby allowing more packages to be stacked for instance in a ISO-container or in a transport vehicle.
Preferably, in said second position said lift unit is positioned for maintaining said display screen unit in a vertical direction.
It is beneficial if said base unit comprises a plurality of wheel elements for moving the screen lift device in a rolling manner over said ground surface. This allows the screen lift device to be moved for instance between different rooms. If the lift screen device is used in a school environment, the lift screen device can be moved relatively easily between different classrooms.
In this regard, it is beneficial if said lift screen device comprises a braking arrangement for braking one or more of said plurality of wheel elements. The screen lift device is thereby prevented from being moved. The braking arrangement may be configured so that the one or more of the plurality of wheel elements is released only if the lift unit is in the second position and the distance in the first direction between said display screen unit connection arrangement and said base unit is relatively small. It can thus be ensured herewith that the screen lift device is movable only if the height of said display screen unit connection arrangement above the ground surface is relatively low. Movement of the screen lift device when said display screen unit connection arrangement is in a relatively high position is then prevented as the braking arrangement is activated. In the low position, the screen lift device is relatively stable, whereby the risk of unwanted falling over of the screen lift device is relatively low. In the relatively unstable higher position of the display screen unit connection arrangement, movement is then prevented.
Preferably, said screen lift device comprises a transmitting arrangement arranged for connecting to said display screen unit and at least one of a power source and a data source providing data for display on said display screen unit, wherein said transmitting arrangement is arranged for transmitting said at least one of said power and said data to said display screen unit.
It is beneficial, if said screen lift device comprises a locking arrangement for locking said lift unit in said second position. This is beneficial for realising a relative safe use of the screen lift device while said lift unit is in said second position.
In this regard, it is advantageous if said locking arrangement comprises a protrusion provided at one of said lift unit and said base unit and a receiving space in the other of said lift unit and said base, wherein, in said second position, said protrusion is locked in said receiving space. This is beneficial for realising a relative reliable and robust locking. The protrusion may for instance snap into the receiving space.
Preferably, said receiving space is at least partly bound by a movable element, preferably a movable wall element, that is biased to a lock position and aranged to be moved out of said locked position by said protrusion when moving towards said second position. This is beneficial for allowing an unlocking of said protrusion from said receiving space by manually moving the movable element out of said lock position.
In this regard, it is beneficial if said movable element is part of a leaf spring.
In an embodiment of the screen lift device according to the present disclosure, said screen lift device further comprises a protection arrangement for protecting said lift unit from moving out of said second position when said lift unit is locked in said second position. Providing a protection arrangement, in addition to the locking arrangement, is beneficial for improving the safety of the screen lift device when said lift unit is in the second position.
In this regard, it is advantageous if said protection arrangement comprises a safety pin extending through a part of said base unit and a part of the lift unit. This is beneficial for realising a relative safe screen lift device. By providing the safety pin, the risk of unintentionally moving the lift unit from the second position to the first position is avoided, or at least significantly reduced.
In an embodiment the safety pin is formed by a bolt or a combination of a bolt and a nut, wherein the nut secures the bolt in position.
In an embodiment of the screen lift device, said screen lift device comprises a covering arranged for at least partly, preferably completely covering said base unit. The covering is provided at an upper side of the base unit and shield elements of the base unit from the surrounding. The covering may comprise plastic cover parts.
Preferably, said covering is attached, via a covering frame part, to said base unit, wherein said covering frame part is connectable to said base unit by said safety pin. This is beneficial for avoiding, or at least significantly reducing, the risk that during installation of the screen lift device installation of the safety pin is omitted. To this end, connecting the covering to the base unit is only possible when the covering frame part is connected to the base unit using the safety pin.
Preferably, a sum of dimension of said screen lift device in three orthogonal directions in said first position is smaller than said sum in said second position.
Preferably, in said first position, said display screen unit connection arrangement is immediately facing said ground surface.
Preferably, said pivot arrangement comprises a pivot axis that is parallel to said ground surface for pivoting said base unit relative to said lift unit between said first position and said second position.
The screen lift device may furthermore comprise a drive arrangement which is configured to move said display screen unit connection arrangement in said first direction, in particular by means of a mechanical, electrical, hydraulic or pneumatic drive source.
In this regard, it is advantageous if said screen lift device comprises a control unit which is configured to control the drive arrangement, so that the drive arrangement can be put into operation or just switched off.
5 The lift screen device may furthermore comprise a position-setting unit which is connected to the control unit and which is operable by a user, wherein said control unit is configured to control said drive arrangement following operation of said position-setting unit in such a way that said display screen unit connection arrangement is moved, in said first direction, preferably to a predetermined setting position.
Preferably, said position-setting unit comprises a multiplicity of button elements provided on said screen lift device. A predetermined setting position can simply be chosen by means of the button elements. It is conceivable for one of said button elements to be allocated to a first user, a following button element to be allocated to a third user, and so on until all button elements and/or users are linked to one another.
In a practical embodiment of the screen lift device, said button elements are arranged for operation by a foot of a user, wherein said button elements are provided in said base unit.
The screen lift device will now be explained with reference to the following schematic figures, in which: Fig. 1 shows a side view of the screen lift device according to the present disclosure, indicating a first position in which the screen lift device is in a folded condition (dashed lines) and a second position in which the screen lift device is in an operational condition (solid lines); Fig. 2 shows an isometric view of elements of the base unit and the pivot arrangement of the screen lift device of Fig. 1; Fig. 3A shows a side view of the locking arrangement of the screen lift device of Fig. 1, wherein the locking arrangement is in an unlocking position; Fig. 3B shows a side view of the locking arrangement of the screen lift device of Fig. 1, wherein the locking arrangement is in a locking position; Fig. 4A shows an isometric view of a transportation package including the screen lift device of Fig. 1 in a folded condition, with the dimensions of the transportation package indicated; Fig. 4B shows an isometric view of a transportation package including a screen lift device according to the prior art, with the dimensions of the transportation package indicated; Fig. 5 shows an exploded view of elements of the screen lift device according to the present disclosure.
The screen lift device 100 comprises a base unit 101 arranged for supporting the screen lift device on a ground surface and a lift unit 103 comprising a display screen unit connection arrangement 105 and a lift arrangement 107. The display screen unit connection arrangement 105 is arranged for connecting a display screen unit 150, for example an interactive whiteboard, to the lift unit 103. A transmitting arrangement 113 is arranged for connecting the display screen unit 150 to a power source and a data source, in order to provide the display screen unit 150 with power and media data. The media data is for example provided to the display screen unit 150 via the transmitting arrangement by a wirelessly connected external source. The lift arrangement 107 of the lift unit 103 is arranged for adjusting a distance in a first direction D between the display screen unit connection arrangement 105 and the base unit 101. The base unit 101 comprises four wheel elements 111 for moving the screen lift device 100 in a rolling manner over the ground surface.
The screen lift device 100 further comprises a pivot arrangement 109, for pivoting the lift unit 103 relative to the base unit 101 between a first position, indicated with the dashed lines in Fig. 1, in which the screen lift device 100 is in a folded condition and a second position, indicated by the solid lines in Fig. 1, in which said screen lift device 100 is in an operational condition. The pivot arrangement 109 comprises a pivot axis 123 that is parallel to the ground surface for pivoting the base unit 101 between the first position and the second position. Via the pivot arrangement 109, the lift unit 103 is pivotably connected to the base unit 101.
In the first position, in which the screen lift device 100 is in a folded condition, a height hei of the screen lift device 100 is lower than a height hp in the second position of the screen lift device 100. Furthermore, a sum of dimensions of the screen lift devices 100 in three orthogonal directions in the first position is smaller than the sum in the second position. As a result, the volume 160 of the transportation package including the screen lift device 100 according to the present disclosure, as shown in Fig. 4A, is smaller than the volume 160 of the transportation package including a screen lift device according to the prior art, wherein the screen lift device is not foldable, as shown in Fig. 4B. This allows more packages including the screen lift device 100 to be stacked on a single transportation pallet.
In the first position, a component of the first direction D perpendicular to the ground surface is smaller than a component of the first direction parallel to the ground surface. In the position indicated by the dashed lines in Fig. 1, the first direction Dr is parallel to the ground surface and the component of the first direction D perpendicular to the ground surface is equal to zero. In this position the display screen unit connection arrangement 105 is immediately facing the ground surface.
In the second position, in which the screen lift device 100 is in a operational condition, the lift unit 103 is positioned for maintaining the display screen unit 150 in a vertical direction. The distance in the first direction De: is adjustable by the lift arrangement 107 of the lift unit 103 in order to adjust the height of the display screen unit 150 relative to the ground surface.
The screen lift device 100 comprises a locking arrangement 115 for locking the lift unit 103 in the second position relative to the base unit 101. The locking arrangement 115 comprises a protrusion 117 provided in a base part 101’ of the base unit 101 and a receiving space 119 provided in the pivot arrangement 109, wherein the lift unit 103 is fixed to the pivot arrangement 109. The locking arrangement 115 furthermore comprises a movable element formed as a movable wall element 121, wherein the movable element 121 is a part of a leaf spring such that the movable element 121 is biased to a lock position.
For setting up the screen lift device 100 from the compact folded condition into the operational condition, the lift unit 103 is pivoted relative to the base unit 101 around the pivot axis 123 from the first position towards the second position. By moving the lift unit 103 towards the second position the movable element 121 is moved out of the locked position by the protrusion 117. Once in the second position, the protrusion 117 is received in the receiving space 119. The movable element 121 is biased back to the locked position, such that the receiving space is bound by the movable element 121 and thereby locking the lift unit 103 in the second position. The screen lift device 100 comprises an additional protection arrangement for protecting the lift unit 103 from unintentionally moving out of the second position when the lift unit
103 is locked in the second position. The protection arrangement comprises a safety pin, formed by a bolt 125 extending through the through holes 131 provided both in the base unit 101 and in the lift unit 103. The screen lift device 100 is provided with plastic cover parts 127, 129 for covering the base unit 101. The cover parts 127, 129 are attached, via covering frame part 133 to the base unit 101, wherein the covering part 133 is connectable to the base unit 101 via bolts 125. After attaching and connecting the display screen unit 150 to the display screen unit connection arrangement 105 and the transmitting arrangement 113 respectively, the screen lift device 100 is ready for operational use.
For moving the screen lift device 100 back from the operational condition into the folded condition, the plastic cover parts 127, 129 are removed and the covering frame 133 and bolts 125 are removed from the through holes 131. The movable element 121 is moved out of the locked position, for example by manually applying a force to the movable element 121, which allows the lift unit 103 to be pivoted relative to the base unit 101 around the pivot axis 123, from the second position to the first position.

Claims (16)

CONCLUSIESCONCLUSIONS 1. Een schermliftinrichting (100), omvattende: - een basiseenheid (101) ingericht voor het ondersteunen van de schermliftinrichting (100) op een grondoppervlak; - een lifteenheid (103) omvattende een beeldschermeenheid- verbindingsinrichting (105) ingericht voor het koppelen van een beeldschermeenheid (150) met de lifteenheid (103) en een liftinrichting (107) ingericht voor het aanpassen van een afstand in een eerste richting (D) tussen de beeldschermeenheidverbindingsinrichting (105) en de basiseenheid (101); en - een scharnierinrichting (109) die de basiseenheid (101) scharnierend verbindt met de lifteenheid (103) en ingericht voor het scharnieren van de lifteenheid (103) ten opzichte van de basiseenheid (101) tussen een eerste positie waarin de schermliftinrichting (100) zich in een opgevouwen toestand bevindt voor transportdoeleinden en een tweede positie waarin de schermliftinrichting (100) zich in een operationele toestand bevindt.A screen lift device (100) comprising: - a base unit (101) adapted to support the screen lift device (100) on a ground surface; - a lift unit (103) comprising a display unit connecting device (105) arranged for coupling a display unit (150) to the lift unit (103) and a lift device (107) arranged for adjusting a distance in a first direction (D) between the display unit connector (105) and the base unit (101); and - a hinge device (109) hingedly connecting the base unit (101) to the lift unit (103) and adapted to pivot the lift unit (103) relative to the base unit (101) between a first position in which the screen lift device (100) is in a folded condition for transportation purposes and a second position in which the screen lift device (100) is in an operational condition. 2. De schermliftinrichting (100) volgens conclusie 1, waarbij in de eerste positie een hoogte (he) van de schermliftinrichting (100) lager is dan in de tweede positie.The screen-lifting device (100) according to claim 1, wherein in the first position a height (he) of the screen-lifting device (100) is lower than in the second position. 3. De schermliftinrichting (100) volgens conclusie 1 of 2, waarbij in de eerste positie, een component van de eerste richting (D} loodrecht op het grondoppervlak kleiner is dan een component van de eerste richting evenwijdig aan het grondoppervlak.The screen lift device (100) according to claim 1 or 2, wherein in the first position, a component of the first direction (D} perpendicular to the ground surface is smaller than a component of the first direction parallel to the ground surface. 4. De schermliftinrichting (100) volgens een van de voorgaande conclusies, waarbij in de eerste positie de eerste richting (D) evenwijdig is aan het grondoppervlak.The screen lift device (100) according to any of the preceding claims, wherein in the first position the first direction (D) is parallel to the ground surface. 5. De schermliftinrichting (100) volgens een van de voorgaande conclusies, waarbij, in de tweede positie, de lifteenheid (103) is gepositioneerd voor het in een verticale richting houden van de beeldschermeenheid (150).The display lifting device (100) according to any one of the preceding claims, wherein, in the second position, the lifting unit (103) is positioned to hold the display unit (150) in a vertical direction. 6. De schermliftinrichting (100) volgens een van de voorgaande conclusies, waarbij de basiseenheid (101) een veelheid wielelementen (111) omvat voor het bewegen van de schermliftinrichting (100) op een rollende wijze over het grondoppervlak.The screen lift device (100) according to any one of the preceding claims, wherein the base unit (101) comprises a plurality of wheel elements (111) for moving the screen lift device (100) in a rolling manner over the ground surface. 7. De schermliftinrichting (100) volgens een van de voorgaande conclusies, waarbij de schermliftinrichting (100) een zendinrichting (113) omvat ingericht voor het verbinden met de beeldschermeenheid (150) en ten minste één van een voedingsbron en een gegevensbron die gegevens verschaft voor weergave op de beeldschermeenheidThe screen lift device (100) according to any of the preceding claims, wherein the screen lift device (100) comprises a transmitting device (113) adapted to connect to the display unit (150) and at least one of a power source and a data source that provides data for display on the display unit (150), waarbij de zendinrichting (113) is ingericht voor het verzenden van de ten minste één van de voeding en de gegevens naar de beeldschermeenheid (150).(150), the transmitting device (113) being adapted to transmit the at least one of the power supply and the data to the display unit (150). 8. De schermliftinrichting (100) volgens een van de voorgaande conclusies, waarbij de schermliftinrichting (100) een vergrendelingsinrichting (115) omvat voor het vergrendelen van de lifteenheid (103) in de tweede positie.The screen lift device (100) according to any one of the preceding claims, wherein the screen lift device (100) comprises a locking device (115) for locking the lift unit (103) in the second position. 9. De schermliftinrichting (100) volgens conclusie 8, waarbij de vergrendelingsinrichting (115) een uitsteeksel (117) omvat voorzien op één van de lifteenheid (103) en de basiseenheid (101) en een opneemruimte (119) in de andere van de lifteenheid (103) en de basiseenheid (101), waarbij, in de tweede positie, het uitsteeksel (117) is vergrendeld in de opneemruimte (119).The screen lift device (100) according to claim 8, wherein the locking device (115) comprises a protrusion (117) provided on one of the lift unit (103) and the base unit (101) and a receiving space (119) in the other of the lift unit (103) and the base unit (101), wherein, in the second position, the projection (117) is locked in the receiving space (119). 10. De schermliftinrichting (100) volgens conclusie 8 of 9, waarbij de opneemruimte (119) ten minste gedeeltelijk is begrensd door een beweegbaar element (121) dat is voorgespannen naar een vergrendelingspositie en is ingericht om uit de vergrendelingspositie te bewegen door het uitsteeksel (117) bij het bewegen richting de tweede positie.The screen lift device (100) according to claim 8 or 9, wherein the receiving space (119) is at least partially defined by a movable member (121) biased to a locking position and arranged to move out of the locking position by the protrusion ( 117) when moving towards the second position. 11. De schermliftinrichting (100) volgens conclusie 10, waarbij het beweegbare element (121) onderdeel is van een bladveer.The screen lift device (100) according to claim 10, wherein the movable member (121) is part of a leaf spring. 12. De schermliftinrichting (100) volgens een van de conclusies 8 tot en met 11, waarbij de schermliftinrichting (100) verder een beschermingsinrichting omvat om de lifteenheid (103) te beschermen tegen het uit de tweede positie bewegen wanneer de lifteenheid (103) is vergrendeld in de tweede positie.The screen lift device (100) according to any one of claims 8 to 11, wherein the screen lift device (100) further comprises a protection device for protecting the lift unit (103) from moving out of the second position when the lift unit (103) is locked in the second position. 13. De schermliftinrichting (100) volgens conclusie 12, waarbij de beschermingsinrichting een veiligheidspin (125) omvat die zich uitstrekt door een deel van de basiseenheid (101) en een deel van de lifteenheid (103).The screen lift device (100) according to claim 12, wherein the protection device comprises a safety pin (125) extending through part of the base unit (101) and part of the lift unit (103). 14. De schermliftinrichting (100) volgens een van de voorgaande conclusies, waarbij een som van afmetingen van de schermliftinrichting {100) in drie orthogonale richtingen in de eerste positie kleiner is dan de som in de tweede positie.The screen lift device (100) according to any one of the preceding claims, wherein a sum of dimensions of the screen lift device {100) in three orthogonal directions in the first position is smaller than the sum in the second position. 15. De schermliftinrichting (100) volgens een van de voorgaande conclusies, waarbij, in de eerste positie, de beeldschermeenheidverbindingsinrichting (105) direct naar het grondoppervlak is gericht.The display lift device (100) according to any one of the preceding claims, wherein, in the first position, the display unit connecting device (105) faces directly to the ground surface. 16. De schermliftinrichting (100) volgens een van de voorgaande conclusies, waarbij de scharnierinrichting (109) een scharnieras (123) omvat die evenwijdig is aan het grondoppervlak voor het scharnieren van de basiseenheid (101) ten opzichte van de lifteenheid (103) tussen de eerste positie en de tweede positie.The screen lift device (100) according to any one of the preceding claims, wherein the hinge device (109) comprises a pivot axis (123) parallel to the ground surface for pivoting the base unit (101) relative to the lift unit (103) between the first position and the second position.
NL2028148A 2021-05-05 2021-05-05 a screen lift device NL2028148B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100059647A1 (en) * 2008-09-10 2010-03-11 Chung-Cheng Hu Foldable supporting stand with positioning means
US20100320339A1 (en) * 2009-06-17 2010-12-23 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Height adjustable stand and flat panel display utilizing the same
EP3516286B1 (en) 2016-09-20 2020-04-22 Prowise B.V. Display screen device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100059647A1 (en) * 2008-09-10 2010-03-11 Chung-Cheng Hu Foldable supporting stand with positioning means
US20100320339A1 (en) * 2009-06-17 2010-12-23 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Height adjustable stand and flat panel display utilizing the same
EP3516286B1 (en) 2016-09-20 2020-04-22 Prowise B.V. Display screen device

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