EP3311692A1 - Châssis réglable en hauteur comprenant des éléments de jambage rabattables - Google Patents

Châssis réglable en hauteur comprenant des éléments de jambage rabattables Download PDF

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Publication number
EP3311692A1
EP3311692A1 EP16194820.3A EP16194820A EP3311692A1 EP 3311692 A1 EP3311692 A1 EP 3311692A1 EP 16194820 A EP16194820 A EP 16194820A EP 3311692 A1 EP3311692 A1 EP 3311692A1
Authority
EP
European Patent Office
Prior art keywords
shaft
leg
leg member
section
frame according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16194820.3A
Other languages
German (de)
English (en)
Inventor
Stefan Keller
Helmut Schütt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vitra AG
Original Assignee
Vitra Patente AG
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 Vitra Patente AG filed Critical Vitra Patente AG
Priority to EP16194820.3A priority Critical patent/EP3311692A1/fr
Priority to US15/786,780 priority patent/US10349737B2/en
Priority to EP17197008.0A priority patent/EP3311693B1/fr
Publication of EP3311692A1 publication Critical patent/EP3311692A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/14—Tables with tops of variable height with pins coacting with holes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B3/00—Folding or stowable tables
    • A47B3/08—Folding or stowable tables with legs pivoted to top or underframe
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B3/00—Folding or stowable tables
    • A47B3/08—Folding or stowable tables with legs pivoted to top or underframe
    • A47B3/0809—Folding or stowable tables with legs pivoted to top or underframe with elastic locking means
    • A47B3/0812—Folding or stowable tables with legs pivoted to top or underframe with elastic locking means the resilient force of the elastic locking means acting in a direction parallel to the axis of rotation of the leg
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B3/00—Folding or stowable tables
    • A47B3/08—Folding or stowable tables with legs pivoted to top or underframe
    • A47B2003/0824—Folding or stowable tables with legs pivoted to top or underframe the table legs being individually collapsible against the underside of the table top
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/04—Tables with tops of variable height with vertical spindle
    • A47B2009/043—Tables with tops of variable height with vertical spindle with means connecting the spindles of the various legs

Definitions

  • the invention relates to a height-adjustable frame according to the preamble of independent claim 1.
  • a height-adjustable frame for a piece of furniture such as a table and in particular a writing or working table, which is simple in construction, can be operated without electrical energy and as compact as possible collapsible.
  • the invention proposes a height-adjustable frame for furniture such as a table and in particular a writing or working table.
  • the frame comprises a first leg member having a first support portion, a first foot portion and a first adjustment device. It further comprised a second leg member having a second support portion, a second foot portion and a second adjustment device.
  • the first support section and the first foot section are displaceable relative to one another by means of the first adjustment device.
  • the second support section and the second foot section are displaceable relative to one another by means of the second adjustment device.
  • the first leg element is pivotable about a first pivot axis and the second leg element about a second pivot axis.
  • the frame in particular has a locking structure and a rotatable shaft arranged between the first leg element and the second leg element for synchronously driving the first adjusting device and the second adjusting device.
  • the shaft comprises a middle section, a first end section pivotable relative to the central section about a first hinge axis, and a second end section pivotable relative to the central section about a second hinge axis.
  • the locking structure locks the first leg element and the second leg element respectively in an unfolded position when the joint axes do not run at least approximately parallel to the pivot axes or in particular at least approximately coincide.
  • the locking structure can be unlocked when the joint axes extend at least approximately parallel to the pivot axes and in particular at least approximately coincide, so that the first leg member and the second leg member are pivotable in a retracted position.
  • frame may refer in particular to a support frame over which the furniture can be parked on the floor.
  • the frame can be a table frame or a frame.
  • countertop in the context of the invention can generally refer to a plate-shaped element which can or can be mounted on the height-adjustable frame and on which an activity is carried out.
  • the worktop can be a table top.
  • Such worktops have a horizontal surface. Deviations from an exactly horizontal orientation can also be included.
  • the worktops can also be tilted or arranged obliquely or be arranged.
  • pivoting with respect to the end portions and leg members may refer to folding in and out.
  • the leg elements in particular with respect to a work or table top on which they are mounted, and be unfolded.
  • the end sections can be miteinge- or folded.
  • the first and the second leg element are pivotable about a first or second pivot axis, so that each of the leg elements - preferably individually - can be adjusted by pivoting between a folded and a deployed position.
  • the leg elements in particular the foot sections, the frame can be placed on a floor or placed on another, preferably even ground, when they are in the unfolded position.
  • the first adjusting device and the second adjusting device are advantageously designed so that they can be actuated by rotation of a respective adjusting element and thereby depending on the direction of rotation, a displacement of the associated foot portion is effected.
  • the respective adjusting element can in particular be a toothed wheel which is in operative connection with a toothed rack or spindle provided on the corresponding foot section and in particular firmly connected to the foot section.
  • a shaft extending between the leg elements is provided, which is adapted to synchronously actuate the respective adjusting elements of the first and second leg element when it rotates about a longitudinal axis.
  • it can rotationally actuate the gears and thereby the so move connected rack or spindle.
  • a toothed wheel can be provided at each end of the shaft, which, as mentioned above, is in engagement with the toothed racks or spindles provided on the foot sections and serves as a first or second adjusting element.
  • the shaft is designed as an at least three-part shaft, and comprises the middle section, the first end section connected to the central section via a first joint, and the second end section connected to the central section, for example via a second joint.
  • the joints are preferably universal joints with a single degree of freedom, each of which determines the respective axes of articulation extending in particular perpendicular to the central portion of the shaft. About these hinge axes, the end portions are pivotable together with the respective associated leg member.
  • the two joints can also be designed with several in particular two degrees of freedom, for example as a cross, ball, or universal joint.
  • such joints generally have a preferred direction or a preferred degree of freedom, in which or with respect to which pivoting or rotation is particularly low-friction, low-resistance and / or over a particularly large - in particular compared to other directions or with respect other degrees of freedom - adjustment is possible.
  • the axis corresponding to the preferred direction or to the preferred degree of freedom may be understood as the respective joint axis, in particular as far as it is perpendicular to the central section of the shaft.
  • the hinge axes By connected via the hinge axes with the central portion end portions, it is possible that the latter can be pivoted simultaneously with the leg members or folded and unfolded, as far as the degrees of freedom of the joints allow. In order to ensure a clean pivoting, this is possible according to the invention only if the joint axes extend at least approximately parallel to the respective pivot axes of the leg elements or in particular at least approximately coincide with the respective pivot axes.
  • a crank element is preferably provided, which is in operative connection with the shaft, so that the Wave are rotated by turning the crank when.
  • the crank may in particular comprise a crank rod, at one end of which a first bevel gear is provided, in particular fixedly connected, which is provided with a shaft provided on the shaft, in particular fixedly connected to the bevel gear or can be brought into engagement.
  • a motor in particular an electric motor can be provided by means of which the shaft can be set in rotation. If the shaft is rotated, the two joints and thus also the two joint axes rotate at the same time. However, this leads to the fact that the joint axes are generally not parallel to the pivot axes, not approximately.
  • first or second hinge axis does not run at least approximately parallel to the first second pivot axis or if the hinge axes do not coincide at least approximately with the respective pivot axes, pivoting of the corresponding leg element is blocked or rendered impossible by the shaft. This serves, in particular, to damage the corresponding leg element or the shaft and / or other elements of the height-adjustable frame.
  • the locking structure is provided according to the invention, which is designed in particular so that it locks the leg members in the unfolded position, ie, blocks a pivoting of the leg members, if the first hinge axis is not at least approximately parallel to the first pivot axis and the second hinge axis at least approximately parallel to the second pivot axis.
  • the locking structure releases the leg members when the first hinge axis is at least approximately parallel to the first pivot axis, or when the first hinge axis and the first pivot axis coincide at least approximately and at the same time the second hinge axis is at least approximately parallel to the second pivot axis, or if the second hinge axis and the second pivot axis coincide at least approximately.
  • the shaft is preferably in a linear or extended position, in which the middle section and the two end sections extend in one and the same direction or lie on a straight axis, ie are not pivoted relative to one another.
  • a locking structure as described above makes it possible to connect the end portions of the shaft, for example, with only one degree of freedom with the central portion, which allows a particularly simple, robust and stable construction of the shaft without affecting the pivotability of the leg members.
  • the two joint axes are oriented parallel.
  • the frame comprises a support member for mounting on a worktop or table top, on which the first leg member is pivotally mounted about the first pivot axis and on which the second leg member is pivotally mounted about the second pivot axis.
  • a support element can support and support a work or table top.
  • the frame can be efficiently designed as a stable base of a table.
  • the support element is advantageously made in one piece. It preferably has a transverse section, on which the first leg element and the second leg element are mounted at a distance from one another.
  • the transverse section can be designed, for example, in the form of a profile tube, a longitudinal traverse or a square tube. In the assembled state, it may extend substantially parallel to a direction of a width of the worktop.
  • a first bearing may be provided in the region of a first end of the transverse section and a second bearing in the region of a second end of the transverse section remote from the first end.
  • a first or second longitudinal section may be provided, which extends at least substantially in a longitudinal direction extending perpendicular to the transverse direction.
  • the longitudinal sections can therefore extend parallel to a direction of a depth of the worktop and so support the worktop forward and backward.
  • the transverse sections may also be designed as panels or panels for the shaft, wherein at least part of the shaft extends in particular in a cavity formed in or from the transverse section, possibly in connection with the worktop.
  • the support member may also be designed in several parts, and include a first mounting part with the first storage and a second, separate mounting part with the second storage.
  • a two-part support element is the Transverse section to some extent replaced or formed by a portion of the worktop when the two-piece support member is mounted on such.
  • the support member may also be integral with the worktop or firmly connected in particular firmly bonded thereto.
  • the support member may be integrally formed, welded or soldered to a worktop made of metal on the worktop.
  • the first pivot axis and the second pivot axis are advantageously parallel to each other and different from each other. In particular, they may be oriented parallel to the longitudinal direction or parallel to a direction of a depth of the work surface when the frame is mounted on the table top.
  • the support element allows a stable and firm connection between worktop and frame. If required, the support element and the leg element can be designed such that the leg elements can be assembled and disassembled using suitable tools, for example. This allows a simple factory production or a simple assembly on site and allows the availability of a modular and / or configurable product range.
  • first leg member and the second leg member are each independently pivotable between the folded position and the deployed position.
  • the locking structure comprises a blocking device, which is adjustable between a blocking position, in which it blocks pivoting of the first and second leg member, and a release position, in which the first leg member and the second leg member is released for pivoting ,
  • a blocking device which is adjustable between a blocking position, in which it blocks pivoting of the first and second leg member, and a release position, in which the first leg member and the second leg member is released for pivoting
  • a single, common blocking device can be provided which simultaneously blocks or releases the pivoting of both leg elements.
  • a blocking device per leg element which blocks or releases only the pivoting of the corresponding leg member.
  • the locking structure changes depending on a rotational position of the shaft between the blocking position and the release position.
  • the Beinelmente can be folded automatically only in appropriate positions.
  • folding can be made possible only if the joints are aligned properly.
  • the locking structure preferably comprises an eccentric provided on the shaft, by means of which the blocking device is adjustable in dependence on the rotational position of the shaft between the blocking position and the release position.
  • the blocking device can be operated efficiently and reliably as a function of the rotational position.
  • the eccentric may have a non-rotationally symmetrical outer circumference. For example, it may have a bulge in the circumferential direction.
  • the non-circular outer circumference of the eccentric can move a part of the blocking device as a function of the rotational position of the shaft and actuate it.
  • two analogous eccentric are each arranged on the end portions of the shaft.
  • the blocking device of the locking structure preferably comprises a first locking pin, which projects in the blocking position into a first recess, which is formed in the deployed position of the first leg member on the first leg member and the support member, and a second locking pin which in the blocking position in a second Recess protrudes, which is formed in the unfolded position of the second leg member on the first leg member and the support member.
  • Such locking pins can block the leg members efficiently and safely.
  • the recess may be an opening and / or a recess.
  • protrude in this context also includes a protruding.
  • the blocking device of the locking structure is resiliently biased in the direction of the release position.
  • the blocking device can always be moved to the release position, if it is not pressed to another location.
  • the blocking device of the locking structure may also be resiliently biased in the blocking position.
  • first locking pin and the second locking pin are preferably pressed resiliently in the blocking position into the first recess and the second recess and moved in the release position by the eccentric of the first recess and the second recess.
  • the eccentric can thus push the locking pins against a spring force from the recesses.
  • the blocking device may therefore in particular comprise a locking pin which can project into a first guide opening in the blocking position or can project through a first guide opening which is formed on the first leg element and at the same time projects into a first blocking recess or opening or protrudes through a first blocking recess or opening which is provided on the support element, in particular on the first mounting part, so that the first guide opening and the first blocking recess or opening are in the unfolded position of the first leg member in coverage, and / or in the blocking position in a second guide opening protrudes or protrudes through a second guide opening which is formed on the second leg member, and at the same time protrudes into a second blocking recess or opening, or by a second blocking recess or -öffnu protrudes ng, which is provided on the support member, in particular on the second mounting part, so that the second guide opening and the second blocking recess or opening in the unfolded position of the second leg member are in coincidence.
  • a locking pin which can project into a
  • Blockiervertiefung- or opening and guide opening on an at least approximately identical cross section which is preferably such that the locking pin or at least one end of the locking pin is at least approximately form-fitting in the blocking recess or opening and / or the guide opening can be inserted.
  • the guide opening and / or the first or second blocking recess or opening can be designed in particular as bores, preferably with at least approximately identical diameter.
  • the shaft extends in an interior of the transverse portion of the support element.
  • Such an arrangement of the shaft can protect it efficiently. It can also be avoided that a clean rotation of the shaft is hindered.
  • a first universal joint forming the first joint axis is provided between the central portion and the first end portion of the shaft, and between the central portion and the second end portion of the shaft is a second universal joint forming the second joint axis.
  • Such universal joints can allow reliable rotation of the entire shaft and at the same time a stable tilting or pivoting of the end portions together with the leg members.
  • the central portion of the shaft, the first end portion of the shaft and the second end portion of the shaft are each rod-shaped.
  • Such a design enables a stable construction which is rotatable uniformly and efficiently.
  • Another aspect of the invention relates to a table with a height-adjustable frame, as described above, and a work or table top, which is mounted on the frame.
  • a table enables an efficient realization of the effects and advantages described in connection with the frame according to the invention and its preferred embodiments.
  • Fig. 1 shows an embodiment of an inventive height-adjustable frame 7 vice versa from one side and Fig. 2 the frame 7 from an opposite side.
  • Fig. 2 the frame 7 is partially open, so that components inside the frame 7 are visible.
  • the frame 7 comprises a support element 3 in the region of whose longitudinal ends a first leg element 1 and a second leg element 2 are mounted pivotably about a first pivot axis S1 and a second pivot axis S2 on a first and second bearing element, respectively.
  • the first leg element 1 is located in Fig. 1 in an unfolded or pivoted position, the second leg member 2 in a retracted or pivoted position.
  • the support element 3 comprises a longitudinal cross-member 30 which extends in a transverse direction, which corresponds in particular to a direction of a width of a work or table top intended for mounting on the frame 7.
  • the support element 3 comprises a first longitudinal section 31 and a second longitudinal section 32 which extend in a longitudinal direction which corresponds in particular to a direction of a depth of the work plate provided for mounting on the frame 7.
  • the support element 3 - and thus the frame 7 - can be mounted at its longitudinal portions 31 and 32 on an underside of the work or table top and together with it form a table. For example, it can be fastened by means of screws which are screwed through bores 311, 321 into the work or table top.
  • the first leg element 1 comprises a first support section 11 and a first foot section 12.
  • the second leg element 1 comprises a second support section 21 and a second foot section 22.
  • the first foot section 12 and the second foot section 22 each comprise a square tube 122, 222 and a longitudinal leg 121 , 122.
  • the longitudinal feet 121, 122 are aligned parallel to one another and parallel to the longitudinal sections 31, 32 of the support element 3.
  • the foot sections 12, 22 are mounted on the respective support sections 11, 21 by means of a first adjusting device 13 and a second adjusting device 23 extendable and retractable.
  • a height position of the worktop by retracting or extending the foot sections 12, 22 by means of the adjusting devices 13, 23 are adjusted. If the foot sections 12, 22 are extended, a distance between the foot sections 12, 22 and the support sections 11, 21 or the support element 3 increases. Thus, a vertical position or height of the work surface can be increased or increased. Will the Retracted foot sections 12, 22, a distance between foot sections 12, 22 and support member 3 decreases, and a vertical position of the worktop is lowered.
  • a shaft 4 is provided which extends between the first and second leg members 11, 21 and by means of a crank element 5 in FIG Rotation can be offset.
  • the two adjusting devices 13, 23 are actuated in a synchronous manner, with which the shaft 4 is in operative connection.
  • the shaft 4 comprises an at least substantially rod-shaped central portion 40, at one end of which a likewise at least substantially rod-shaped first end portion 41 is provided. Between the central portion 40 and the first end portion 41, a first universal joint 411 is provided. At the other end of the central portion 40, a likewise at least substantially rod-shaped second end portion 42 is arranged. Between middle section 40 and second end section 42, a second universal joint 421 is provided.
  • the universal joints 411, 421 are provided with respect to the transverse direction at a same position as the corresponding bearing elements, to ensure that the pivot axes S1, S2 of the leg members 1, 2 and the joint axes G1, G2 of the universal joints 411, 421 respectively substantially lie in a plane and in the in Fig. 1 and in Fig. 2 shown rotational position of the shaft 4 coincide.
  • a second eccentric 61 is provided in the form of a cam on the second end portion 42 of the shaft 4.
  • a fork-shaped second locking slide 62 can be actuated, which serves as part of a blocking device.
  • a locking pin 621 is provided with a rectangular cross-section, which is guided in the blocking position by a transverse section 40 provided on the second guide opening 63 with at least approximately corresponding cross-section. If as in Fig. 3 illustrated the second hinge axis G2 not with the second pivot axis S2 coincides, but this crosses, the locking slide 62 is displaced away from the eccentric 61 in the direction of the shaft 40, so that the locking pin 621 protrudes into the provided on the transverse portion 40 guide opening 63 or engages. The locking pin 621 is thus brought into positive engagement with the second guide opening 63 in engagement.
  • the first end portion 41 of the shaft 40 is analogous to the second end portion 42 described above with an identical first eccentric 61 'provided, which communicates with an identical locking pin 621' having a fork-shaped first locking slide 62 'in operative connection.
  • the first leg element 1 and the transverse section 40 of the shaft 4 also have a first guide or blocking opening 63 'in a region of the first leg element 1.
  • the first leg member 1 is locked in a corresponding manner synchronously to the second leg member 1 or released.
  • first hinge axis G1 as in Fig. 4 With respect to the first leg member 1 shown in detail after rotation of the shaft 40 by means of the crank 5 coincides with the first pivot axis S1, the first eccentric 61 'no longer presses on the locking slide 62', so that this under the action of a first coil spring 65 'in the direction is pushed on the shaft 40 to. As a result, the first locking pin 621 'is withdrawn from the first guide opening 63' and a pivoting of the first leg element 1 is released. The frame 7 is now in the release position and the leg members 1, 2 can be folded.
  • the present disclosure also includes embodiments having any combination of features that are mentioned or shown above or below various embodiments or embodiments. It also comprises individual features in the figures, even if they are shown there in connection with other features and / or are not mentioned above or below. Also, the alternatives of embodiments and individual alternatives described in the figures and the description may be excluded from the subject matter of the invention or from the disclosed subject matter.
  • the disclosure includes embodiments which exclusively comprise the features described in the claims and in the exemplary embodiments as well as those which include additional other features.
  • a feature or a property for example a specific, in particular geometrical, shape, at least approximately or substantially formed, is provided or available may in particular mean that production specifications exist which provide a specification according to which the feature is to be designed accordingly, wherein a deviation from the specification can result, in particular within the scope of usual manufacturing tolerances.
  • an element or feature is extended in one direction, extends in one direction or extends in one direction may in particular mean that dimensions of the element or feature in or with respect to this direction are greater than in or with respect to others, in particular all other directions. in particular orthogonal directions.

Landscapes

  • Furniture Connections (AREA)
  • Legs For Furniture In General (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
EP16194820.3A 2016-10-20 2016-10-20 Châssis réglable en hauteur comprenant des éléments de jambage rabattables Withdrawn EP3311692A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16194820.3A EP3311692A1 (fr) 2016-10-20 2016-10-20 Châssis réglable en hauteur comprenant des éléments de jambage rabattables
US15/786,780 US10349737B2 (en) 2016-10-20 2017-10-18 Height-adjustable frame with foldable leg elements
EP17197008.0A EP3311693B1 (fr) 2016-10-20 2017-10-18 Châssis réglable en hauteur comprenant des éléments de jambage rabattables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16194820.3A EP3311692A1 (fr) 2016-10-20 2016-10-20 Châssis réglable en hauteur comprenant des éléments de jambage rabattables

Publications (1)

Publication Number Publication Date
EP3311692A1 true EP3311692A1 (fr) 2018-04-25

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EP16194820.3A Withdrawn EP3311692A1 (fr) 2016-10-20 2016-10-20 Châssis réglable en hauteur comprenant des éléments de jambage rabattables
EP17197008.0A Active EP3311693B1 (fr) 2016-10-20 2017-10-18 Châssis réglable en hauteur comprenant des éléments de jambage rabattables

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Application Number Title Priority Date Filing Date
EP17197008.0A Active EP3311693B1 (fr) 2016-10-20 2017-10-18 Châssis réglable en hauteur comprenant des éléments de jambage rabattables

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EP (2) EP3311692A1 (fr)

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TWM601048U (zh) 2019-05-15 2020-09-11 第一傳動科技股份有限公司 易於組裝調整的電動桌腳架
US11497237B1 (en) 2020-01-17 2022-11-15 Ayrking, Llc Breading and sifting station
CN213820289U (zh) * 2020-11-10 2021-07-30 德沃康科技集团有限公司 一种折叠桌架及折叠桌
CN112741415A (zh) * 2021-01-19 2021-05-04 宁波汇五洲智能科技有限公司 一种拆装便捷的升降桌
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US20180110324A1 (en) 2018-04-26
EP3311693A1 (fr) 2018-04-25
EP3311693B1 (fr) 2019-10-16
US10349737B2 (en) 2019-07-16

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