EP0065036A1 - Table à dessus réglable - Google Patents

Table à dessus réglable Download PDF

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Publication number
EP0065036A1
EP0065036A1 EP81106873A EP81106873A EP0065036A1 EP 0065036 A1 EP0065036 A1 EP 0065036A1 EP 81106873 A EP81106873 A EP 81106873A EP 81106873 A EP81106873 A EP 81106873A EP 0065036 A1 EP0065036 A1 EP 0065036A1
Authority
EP
European Patent Office
Prior art keywords
torsion bar
table top
spring
bar spring
attached
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.)
Granted
Application number
EP81106873A
Other languages
German (de)
English (en)
Other versions
EP0065036B1 (fr
Inventor
Wolf Veyhl
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.)
Veyhl Produktion KG
Original Assignee
Veyhl Produktion KG
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 Veyhl Produktion KG filed Critical Veyhl Produktion KG
Priority to AT81106873T priority Critical patent/ATE19465T1/de
Publication of EP0065036A1 publication Critical patent/EP0065036A1/fr
Application granted granted Critical
Publication of EP0065036B1 publication Critical patent/EP0065036B1/fr
Expired 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
    • A47B27/00—Drawing desks or tables; Carriers for drawing-boards
    • A47B27/18—Locking means, e.g. for locking inclination of board
    • 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
    • A47B9/02—Tables with tops of variable height with balancing device, e.g. by springs, by weight

Definitions

  • the invention relates to a table with a table top that is adjustable in height and / or inclination relative to the table frame and a suspension arranged between the table frame and table top that compensates for the weight of the table top.
  • Tables that have a table top that can be adjusted to adjust the working height and / or the optimal inclination have been known for a long time and have been found recently, in particular as tables for data processing devices for setting an optimal height of the keyboard and screen, increasingly reuse.
  • spindle drives are used to adjust the table top.
  • Such drives are very expensive and are therefore out of the question for simpler designs of such tables.
  • simple catches are then provided on leg parts which can be displaced relative to one another in order to hold the table top at different heights and / or inclinations, and the table top must be adjusted by hand.
  • Suspensions can be used to balance the weight of the table top and thereby simplify the adjustment of the table top to the desired position.
  • Coil springs have an unfavorable spring characteristic because the spring force is proportional to the compression of the spring, so that relatively long springs have to be used in order to avoid excessive changes in the pressure force when the plate is adjusted in height. Similar problems also exist with gas springs, since the changes in the pressure force are proportional to the enclosed gas volume. In addition, gas springs are relatively expensive, so that there are certain limits to their use. Such springs have in common that they take up a considerable amount of space in the leg parts of the table frames.
  • the invention has for its object to provide a table of the type described above with an adjusting and spring device, which has a simple structure, which causes low costs and also requires little space, and which is also easy to use, not least because a good one Weight balance is guaranteed.
  • the table top is connected at its edge to the table frame by releasable catches and / or clamps and the suspension comprises a torsion bar spring attached to the table frame or the table top, to which at least two radial arms are attached, one of which is supported on the table frame and the other on the underside of the table top.
  • the torsion bar spring used in the table according to the invention has a very favorable characteristic because it is twisted by only a small angle with a corresponding length of the arms attached to it, and therefore the spring force exerted by it undergoes only minor changes. Furthermore, such a torsion bar spring is an extremely simple and therefore also inexpensive component, and the torsion bar spring can be held in simple bearings on the underside of the table top or on the table frame, which likewise do not cause high costs. In addition, such a torsion bar spring arranged parallel to the table top has no significant space requirement. Furthermore, it supports the table top in the area of its center, so that the table top can be tilted relative to this support.
  • a particularly good distribution of forces is achieved if at the ends of the torsion bar spring two mutually parallel arms which are attached to the same component of the table are attached and the torsion bar spring has an arm which is in contact with the other component in the region of its center. In this way, the spring on one component and the arms that transmit the forces have a large support base on the other component, thereby preventing the occurrence of unfavorable tilting moments.
  • the torsion bar spring is fastened to a part of the table frame which is parallel to an edge of the table top and has at least one arm which extends up to approximately the center line of the table top which is parallel to said edge.
  • the torsion bar spring can be arranged parallel to the long side of the table top and rest against the table top with arms attached at its ends.
  • the table frame has two side cheeks and a spar, which is preferably designed as a cable duct and connects the side cheeks, because then the torsion bar spring can simply be attached to the underside of this spar.
  • the at least one arm which is supported on the component of the table to which the torsion bar spring is fastened, that is to say for example on a spar connecting the side cheeks of the table frame, can be provided with an adjusting screw which rests on this component and enables the spring tension to be adjusted .
  • the torsion bar spring is mounted in a support tube and carries one arm at each of its ends protruding from the support tube.
  • the arms attached to the ends of the torsion bar spring can run parallel to one another and the support tube can have a slot in the region of its center from which a further arm attached to the torsion bar spring protrudes.
  • the support tube can be attached to the underside of a mounting plate, so that the spring arrangement forms a structural unit which is manufactured independently of the rest of the table and can be attached to the table if necessary, in particular attached to a spar of the table frame.
  • the arm protruding from the slot of the carrier tube can then be provided with the set screw and the set screw supported on the underside of the mounting plate, so that it is ensured that the set screw always has a sufficiently strong abutment.
  • the torsion bar spring has a triangular or polygonal, preferably square, cross section.
  • Profile bars made of a suitable steel for the manufacture of the torsion bar spring are readily available commercially. They offer the advantage that no special measures need to be taken to fix the arms on the torsion bar in a rotationally fixed manner. Much more it is sufficient to make corresponding recesses in the arms with a cross section corresponding to the torsion bar spring and to fasten them, for example, by clamping them on the torsion bar spring in order to produce a rotationally fixed connection as a result of the prismatic profile.
  • the torsion bar spring is formed by a stack of leaf springs lying on top of one another, which preferably together form a square profile.
  • Such a combination of leaf springs torsion bar spring has an even more favorable Feder Designi- sti k as a solid torsion bar, so an even smaller change in the spring force during the pivoting of the forces transmitted arms against each other. It is sufficient to hold the leaf springs together by means of the openings in the arms which are adapted to the cross section of the leaf spring assembly.
  • a particularly simple embodiment of the invention results if the arms are formed directly by angled sections of the torsion bar spring. There is then no need to attach arms made of a rigid material to the ends of the torsion bar spring. If such a torsion bar spring has an arm attached in the region of its center, it can be formed by a U-shaped section of the torsion bar spring. Such a spring can also be attached to the underside of a mounting plate, however, split bearing blocks will be used for this, since the torsion bar spring with its angled ends cannot be inserted into carrier tubes, unless the carrier tubes are plugged onto the prior to angling the ends Torsion bar spring on.
  • sliding shoes instead of rollers is particularly suitable, which can then simply be attached to the ends of the sections of the torsion bar spring which are angled as arms.
  • sliding rollers can also be attached to sections of the torsion bar spring that are angled again.
  • a detent is provided on an edge of the table top, which consists in that the table top has at least one edge a pin extending parallel to the plane of the plate, which engages in a vertical slot of a hollow profile of the table frame.
  • a horizontally adjustable slide is guided in the hollow profile, which has a toothed edge that defines locking positions and, in its edge position, engages around the pin with a pair of teeth.
  • the pin on the edge of the table top is held in a form-fitting manner in the horizontal direction by the vertical slot and in the vertical direction by the pair of teeth encompassing it on the edge of the slide and is thus fixed perfectly.
  • the teeth can have a triangular profile, and the slide can be resiliently biased towards its rest position.
  • the spring engages the flanks of the teeth on the pin and at the same time presses the pin on the opposite flank of the vertical slot. In this way, a completely play-free locking of the table top is achieved.
  • This arrangement is particularly advantageous if the table frame has a cable duct adjoining the rear edge of the table top, because the slide can then be arranged inside this cable duct, in which there is sufficient space for accommodating the slide and in which the Slider is easily accessible after removing the cover of the cable duct, without external actuators having to be provided for moving the slider.
  • the table top can also be connected to the table frame by clamping.
  • a spindle is rotatably arranged parallel to an edge of the table top for clamping mounting of the table top and engages with its ends in vertical slots of adjacent hollow profiles of the table frame. At its ends, this spindle has opposite threads, which cooperate with corresponding threads in non-rotatably guided clamping pieces, which can be moved by rotating the threaded spindle in the direction of an abutment which is immovable relative to the spindle.
  • the abutment is on one side and the clamping piece on the other side of the slot having the wall of the associated hollow profile, so that this wall between the abutment and the clamping piece can be firmly clamped to the table top in the desired position receive.
  • This arrangement also has no significant space requirement, since the spindle can be embedded in the table top and, moreover, the hollow profiles of the table frame offer sufficient space for accommodating the components of the clamping device arranged therein.
  • the threaded spindle can be arranged in a rectangular tube attached to the edge of the table top and held therein by the clamping pieces which are formed by blocks guided in the rectangular tube.
  • the abutments can be attached in a simple manner to the ends of the threaded spindle projecting into the hollow profiles of the table frame. In this embodiment of the invention, neither special bearings for the threaded spindle nor special measures for attaching the abutments are required.
  • the abutments can be formed, for example, by simple lock nuts at the ends of the threaded spindle, or also by nuts fixed in another way, for example by pinning or welding.
  • a disc can be arranged between the nuts and the adjacent wall of the hollow profile, the size of which corresponds approximately to the cross section of the clamping pieces, and this disc can also be provided with teeth on the side facing the wall of the hollow profile in order to fix the table top to ensure compared to the table frame even with large loads.
  • the threaded spindle must be provided with some device that allows it to be turned. Such devices can consist of flattened areas or a transverse bore, which enables the insertion of a key or the insertion of a rod as a lever for rotating the threaded spindle.
  • the threaded spindle can also be provided with a permanently attached, radially projecting handle.
  • the attachment of such a handle would require a relatively great precision in the manufacture of the clamp assembly, in order to ensure that on the available, a range of 180 0 hardly over flawless jamming and loosening is guaranteed. Nevertheless, it can happen that the lever protrudes from the underside of the table top into the footwell of the table and disturbs there.
  • a preferred embodiment of the invention therefore provides that such a handle is connected to the threaded spindle via a ratchet which can be changed in its direction of action.
  • Ratchets are devices consisting of toothed segments and locking members, which are often used on tools for transmitting a rotary movement in one direction.
  • the table shown in Fig. 1 to 3 has a table frame which consists of two side parts 1 and a spar connecting the side parts 2, which is designed as a cable duct in the illustrated embodiment.
  • the side parts 1, of which only one is visible in FIG. 1 are essentially C-shaped and consist of a foot 3, a leg part 4 attached to the rear end of the foot and an upper frame part 5 which extends parallel to the foot.
  • the spar 2 and the frame parts 5 form a square open to the front of the table, in which a table top 6 is arranged.
  • the table top 6 is fastened by means of latching and clamping members on the spar 2 and on the frame parts 5 and can be raised from the lower position shown in FIG. 1 to the upper layer 7 indicated by dash-dotted lines and also, as indicated by dashed lines, into an oblique position 8 to be brought.
  • Several intermediate positions are possible.
  • the table top 6 is provided on its rear edge with two spaced-apart pins 61, which extend parallel to the plane of the table top and engage in vertical slots 62, which are arranged in the front wall 63 of the Hdmes 2 designed as a cable duct are.
  • a slide 64 which comprises two plates 65 arranged essentially next to the slots 62, the edge of which faces the slots 62 forms teeth 66 with a substantially triangular profile. In the position shown in FIG. 2, two of these teeth 66 encompass the associated pin 61 and thereby determine its position in the longitudinal direction of the slot 62.
  • the two plates 65 are connected to one another by a rail 67 and are brought into the illustrated locking position by a helical tension spring 68 drawn.
  • the tension spring 68 engages with one end on a bolt 69 attached to the rail 67 and with the other end on a bolt 70 attached on the wall 63 of the cable duct.
  • the handle 71 is accessible after the cover 72 of the cable channel has been removed.
  • the slider 64 can be moved in the longitudinal direction of the cable duct 2 against the force of the tension spring 68 into the position indicated by the dash-dot line, in which the teeth 66 no longer cover the slot 62, so that the pin 61 is freely moved in the longitudinal direction of the slots 62 for height adjustment of the table top can be.
  • the pins 61 again come to lie between two teeth 66 and are positively held by these teeth in the selected latching position.
  • the wedge-shaped flanks of the teeth 66 bear against the force of the spring at two opposite points of the pin 61 and at the same time press the pin against the opposite flank of the slot 62, whereby a play-free mounting of the pin 61 is ensured.
  • the slider 64 is held in the cable duct 2 by guide members 73 which overlap the upper and lower edges of the plates 65.
  • the table top 6 is provided at its front edge with a rectangular tube 81, in which a spindle 82 is arranged, which has opposite ends 83 and 84 at its ends, which are preferably high pitch trapezoidal threads acts.
  • the spindle 82 protrudes on both sides from the rectangular tube 81 and engages with its projecting sections in vertical slots 85 which are provided for this purpose in the inner walls 86 of the frame parts 5 designed as hollow profiles.
  • the spindle 82 ends on both sides in pins 87 of reduced diameter, on each of which a disk 88 held by a nut 89 is placed.
  • the washers 88 are each supported on the shoulder between the pin 87 and the adjacent section of the spindle 82 provided with threads 83 and 84, respectively.
  • the blocks 90 have a thread 83 or 84 cooperating internal thread. At the same time, these blocks form a bearing for the spindle 82. It can be seen that the blocks 90 can be displaced in the longitudinal direction of the rectangular tube 81 by rotating the spindle 82.
  • the disks 5 can be provided on their side facing the walls 86 with a serration or corrugation which can dig into the material of the walls.
  • the blocks 90 By rotating the spindle 82 in the opposite direction, the blocks 90 can be removed from the abutments 88 to such an extent that the clamping is released. Then the spindle 82 is displaceable in the longitudinal direction of the slots 85 for height adjustment of the table top at its front edge. By tightening the clamping device, the front edge of the table top can be determined at any height. It can be seen that this arrangement enables a continuous adjustment, in contrast to the locked adjustment of the table top at the rear edge.
  • the spindle 82 may be formed at an accessible location in a manner that enables a tool to be attached. It is conceivable to provide flats that allow a key to be attached, or to attach one Cross hole that allows the insertion of a lever-like handle. It is of course also possible to provide the spindle 82 with a radially protruding handle which allows the spindle 82 to be actuated at any time. In the exemplary embodiment shown, such a handle 91 is connected to the spindle 82 via a ratchet 92, which is only indicated schematically and whose direction of action can be changed.
  • the handle is angled at 90 ° and 91 around its radial to the spindle 82 portion 93 180 0 pivotable.
  • Ratchets which can be changed in their direction of action are known in many embodiments and are used in particular in the case of tools which are used to transmit a rotary movement at points which permit only a slight pivoting of the tool.
  • the locking means described make it possible to adjust the height of the table top at the front and rear edges independently, so that the table top can always be brought into the desired position by changing the height of the table top at one edge by the captured other edge is pivoted.
  • the existing in the described embodiment pin assembly on the rear Edge of the table top allows pivoting without further ado, while the jamming at the front edge of the table top could be loosened somewhat in order to reduce the frictional forces that occur during pivoting.
  • Such adjustment is particularly easy when there is a suspension that strives to always bring the table top to the top position, so that it is always sufficient to exert a certain pressure on the table top to achieve the desired position.
  • a suspension is provided in the table according to the invention, which is able to absorb the weight of the table top.
  • the suspension comprises a torsion bar spring 11 which is mounted in tube sections 12 which are located on the underside of a mounting plate 13, for example welded to it.
  • the ends 14 of the torsion bar spring 11 protrude from the tube sections 12 and each carry an arm 15 which is provided with a sliding roller 16 at its end.
  • the sliding rollers 16 are each mounted on an axle bolt 17 screwed into the end of the arm 15.
  • the torsion spring 11 has a square cross section, and the arms 15 have corresponding square recesses at their ends connected to the torsion bar spring 11, each of which has a slot 18 to the adjacent end of the arm 15. In the area of this slot, clamping screws 19 are arranged, which allow the arms 15 to be clamped onto the ends 14 of the torsion bar spring 11.
  • the recesses in the arm 15 are arranged such that a diagonal extends in the longitudinal direction of the arm 15.
  • the arms 15 and 21 enclose an angle of 45 ° when the torsion bar spring 11 is relaxed.
  • the torsion bar spring 1 In the extended position shown in FIGS. 2 and 3, which also corresponds to the operating position shown in FIG. 1 with the table top 6 lowered, the torsion bar spring 1 is therefore under tension. This tension is such that the force exerted by the ends of the two arms 15, which abut with the sliding rollers 16 on the underside of the table top 6, as shown in FIG. 1, on the underside of the table top 6 is somewhat greater than the weight the table top.
  • the adjusting screw 22 makes it possible to change the spring force by changing the position of the middle arm 21 with respect to the mounting plate 13 and thus also with respect to the operating positions of the outer arms 15 and to adapt it, for example, to table tops of different sizes or to table tops made of different materials, so that the same Spring arrangement for tables of different designs can be used.
  • the spring arrangement described is attached to the mounting plate 13 on the underside of the spar 2.
  • the arms 15 attached to the ends of the torsion bar spring 11 are of such a length that they rest with the sliding rollers 16 approximately in the longitudinal center of the table top 6 on the underside thereof.
  • the table top is supported essentially along an axis running through the center of gravity, so that it can easily be transferred to the desired position.
  • Fig. 1 also shows in dash-dotted or dashed lines the positions of the arms 15, which correspond to the positions 7 and 8 of the table top 2.
  • the torsion bar spring 11 As already mentioned, it is important for good handling of the table top that the torsion bar spring is "as soft as possible", i.e. exerts as constant a force as possible on the table top.
  • a solid torsion bar spring already has a characteristic which is favorable in this respect, the characteristic of the torsion bar spring can be improved further by being designed as a leaf spring package.
  • the torsion bar spring 11, as can be seen in FIG. 6, consists of six superimposed leaf springs 31, which are held together to form a package solely by the openings in the attached arms 15 and 21.
  • the torsion bar spring 41 is in turn attached to the underside of a mounting plate 43, which in turn is intended to be attached to the frame of a table, as in the previously described embodiment is the case.
  • the torsion bar spring 41 here consists of a bar with a circular cross section, which can have a diameter of 8 mm, for example.
  • the torsion bar spring 41 is not supported in pipe sections but in bearing blocks 42 which are attached to the underside of the mounting plate 43, for example welded back on.
  • the bearing blocks are divided in a plane parallel to the mounting plate 43, so that a type of bearing cover 141 is formed, which are connected by means of screws 242 to the sections of the bearing blocks 42 connected to the mounting plate 43 and allow the torsion bar spring 41 to be inserted into the open bearing blocks.
  • the arms 45 attached to the ends of the torsion bar 41 are simply formed in this embodiment of the invention from angled ends of the spring bar, which in turn are angled again at their ends, so that parallel steering knuckles 47 arise to the section of the torsion bar 41 mounted on the mounting plate 43 , on which rollers 46 are arranged.
  • the torsion bar spring In the area of its center, the torsion bar spring has a U-shaped section 51, which is located approximately in the same plane as the arms 45 when the spring is in operation, but extends in the opposite direction to these arms and with a slightly angled from this plane End 52 rests on the side of the mounting plate facing him.
  • the angle that the end 52 forms with the remaining part of the U-shaped angled section 51 the pretension of the spring can be influenced.
  • this spring arrangement is distinguished by a particularly simple construction and can also be used in the same way as the spring arrangement according to FIGS. 4 to 6.
  • the mounting plate can have a base area of approximately 100 ⁇ 60 mm 2 .
  • the spring arms can have a length of about 300 mm and there is also a value of about 300 mm for the arm distance. While a diameter of 8 mm is generally sufficient when using solid round material for the manufacture of the torsion bar spring, a bar cross section with a side length of 12 mm has proven to be expedient for the use of a square leaf spring package. In general, however, these dimensions will have to depend on the properties of the material used for the torsion bar spring, the table size, the shape and attachment of the spring arrangement and the forces to be absorbed.
  • the invention is not limited to the exemplary embodiments shown, but deviations are possible without leaving the scope of the invention. It would be readily possible to attach the torsion bar spring to the underside of the table top and to provide it with arms which are supported on upwardly facing surfaces of the table frame, for example on a support arranged below the table top. It would also be conceivable to angle the torsion bar spring only at its ends to form the arms, so that it has only two arms. If a symmetrical arrangement is desired, as in the exemplary embodiments, two such springs could, for example, be used in a position symmetrical to one another. Instead of rollers, the arms could also be fitted with sliding shoes at their ends.
  • the torsion bar spring can be used as arms, such arms could rest against a height-adjustable abutment instead of being provided with an adjusting screw itself.
  • the table top can be locked in a different way. In particular, it would be possible to provide similar locking means on two opposite edges of the table top.
  • the arrangements to be chosen will depend to a considerable extent on the design of the table frame, the type of which the invention is independent of.

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  • Sawing (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Machine Tool Units (AREA)
  • Ladders (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Springs (AREA)
EP81106873A 1981-05-20 1981-09-03 Table à dessus réglable Expired EP0065036B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81106873T ATE19465T1 (de) 1981-05-20 1981-09-03 Tisch mit verstellbarer tischplatte.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3120126 1981-05-20
DE3120126A DE3120126C2 (de) 1981-05-20 1981-05-20 Tisch mit einer gegenüber dem Tischgestell in der Höhe und/oder der Neigung verstellbaren Tischplatte

Publications (2)

Publication Number Publication Date
EP0065036A1 true EP0065036A1 (fr) 1982-11-24
EP0065036B1 EP0065036B1 (fr) 1986-04-30

Family

ID=6132828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81106873A Expired EP0065036B1 (fr) 1981-05-20 1981-09-03 Table à dessus réglable

Country Status (6)

Country Link
US (1) US4502394A (fr)
EP (1) EP0065036B1 (fr)
AT (1) ATE19465T1 (fr)
AU (1) AU551561B2 (fr)
DE (2) DE3120126C2 (fr)
ZA (1) ZA823469B (fr)

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GB2133683A (en) * 1983-01-18 1984-08-01 Mantel Embru Werke Furniture with a table-top capable of being adjusted in height and/or inclination

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AU569178B2 (en) * 1984-10-08 1988-01-21 Cotterill, M.J. Height adjustable table
US4825780A (en) * 1987-10-14 1989-05-02 Maxwell Ronald M Bilevel student activity table
US5174224A (en) * 1989-09-20 1992-12-29 Nagy Marta K Ergonomically designed keyboard and forearm support assembly for a computer workstation
US5503086A (en) * 1993-03-19 1996-04-02 Ultra-Mek, Inc. Table with movable top surface
US5598789A (en) * 1994-03-15 1997-02-04 Knoll, Inc. Vertically adjustable table
US6247772B1 (en) * 1996-02-12 2001-06-19 Haworth, Inc. Cabinet unit with pivoting height-adjustable work surface
US5979521A (en) * 1999-01-22 1999-11-09 Delta International Machinery Corp. Adjustment mechanism
US6220179B1 (en) 1999-09-30 2001-04-24 Lyudmila Gadayeva Height and tilt adjustable table
US20070163475A1 (en) * 2006-01-17 2007-07-19 Murphy Marcus L Table with movable top surface and mechanism for same
CN107713350B (zh) * 2017-11-24 2023-09-12 南京善若网络科技有限公司 画架的画板顶部夹紧固定机构
GB2623911A (en) * 2019-08-19 2024-05-01 Evo Invent Llc Range limiter assembly

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Publication number Priority date Publication date Assignee Title
DE32030C (de) * 1900-01-01 E. KÜFFEL und J. DOLLMAYR in Wien; Vertreter J. BRANDT & G. W. V. NAWROCKI in Berlin W., Friedrichstr. 78 Mechanischer Schultisch
US3008789A (en) * 1959-02-05 1961-11-14 American Seating Co Lifting lid desk box
GB1046405A (en) * 1963-09-02 1966-10-26 Domkraft Ab Nike Improvements in drawing tables
US3238900A (en) * 1964-05-15 1966-03-08 Janus Stanley Balancing mechanisms for furniture
DE2010592A1 (de) * 1969-03-14 1970-10-01 Bergman, Per Gotthold, Spanga (Schweden) Vorrichtung zum Ausgleichen des Gewichts einer verstellbaren Tischplatte
DE7630881U1 (de) * 1976-10-02 1977-03-10 Schuckmann, Alfred Von, 5657 Haan Hoehenverstellbarer tisch, insbesondere ablage- oder jugend-schreibtisch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133683A (en) * 1983-01-18 1984-08-01 Mantel Embru Werke Furniture with a table-top capable of being adjusted in height and/or inclination

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AU551561B2 (en) 1986-05-01
DE3120126A1 (de) 1982-12-09
ATE19465T1 (de) 1986-05-15
US4502394A (en) 1985-03-05
EP0065036B1 (fr) 1986-04-30
ZA823469B (en) 1983-03-30
AU8368282A (en) 1982-11-25
DE3174508D1 (en) 1986-06-05
DE3120126C2 (de) 1984-03-22

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