US3543282A - Drawing board - Google Patents

Drawing board Download PDF

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Publication number
US3543282A
US3543282A US718726A US3543282DA US3543282A US 3543282 A US3543282 A US 3543282A US 718726 A US718726 A US 718726A US 3543282D A US3543282D A US 3543282DA US 3543282 A US3543282 A US 3543282A
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United States
Prior art keywords
pillar
drawing board
pulley
section
vertical
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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.)
Expired - Lifetime
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US718726A
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English (en)
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Lucien Emile
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Individual
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Individual
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    • 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
    • A47B27/14—Adjustable underframes
    • 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
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/0036—Table tops pivotable around longitudinal axis

Definitions

  • A- drawing board with adjustment in height, orientation, inclination and lateral translation comprising a vertical body of rectangular section open on one side so as to form a U, and a pillar sliding in said body and having a closed section forming an irregular octagon or a rectangle with chamfered corners, each chamfer being arranged to roll on a pair of vertically-displaced rollers mounted in the bisecting line of each angle of the rectangular body, play between the body and puller being cleminated by nonelastic screw means eifecting a slight deformation of the arms of the U-section.
  • the present invention relates to a drawing board, pro vided, separately or in any combination, with a plurality of improved devices which render it adjustable in height, in inclination, in orientation and in lateral translation with respect to its base. More precisely, the invention has for its object a drawing board provided with adjustments in height, in orientation and in inclination, which do not introduce any play or any elasticity in spite of variations of weight which the draughtsman appiles to the table during his work, to which such play and elasticity would be prejudicial. In particular, the invention has for its object an adjustment in height or vertical sliding movement, without any play and without any elasticity.
  • the vertical sliding movement of the drawing board according to the invention is obtained by means of a body and a pillar arranged to slide one in the other, one of these two members having a closed profile and the other having an open profile substantially parallel to that preceding, these two profiles surrounding each other, while the exact elimination of play is obtained without elasticity by a slight deformation of the open profile actuated by non-elastic means.
  • the said profiles are preferably sufliciently dilferent from a circle or from a rounded curve to prevent the possibility of any undesired rotation of the pillar in the body, and on the contrary in order to position it in rotation without play or elasticity.
  • the vertical sliding device comprises a ver tical body of U-section rigidly fixed to the base and provided with a device for regulating the distance apart of the arms of the U, and a pillar having the section of an irregular octagon (a rectangle with chamfered corners), sliding vertically in the body, each chamfer r011- ing on a pair of rollers mounted on a bisecting line of an angle of the body.
  • the said device for adjusting the distance apart of the arms of the U permits the rolling movement of the chamfers on the rollers to be precisely regulated without play, that is to say regulates the vertical sliding movement of the pillar in the body Without introducing any elasticity.
  • the device for regulating the height comprises means for locking the said sliding movement, constituted by a plate coated for ex- 3,543,282 Patented Nov. 24, 1970 ice ample with rubber, sliding on studs in the body, applied by a spring against one side of the pillar, and by a re.- leasing pedal which moves said plate away from the pillar against the action of the said spring.
  • the device for regulating the height according to the invention further comprises a balancing of the moving portion (pillar, drawing board proper and associated members), comprising a spring, for example pneumatic, actuating vertically a pulley over which passes a cable going from the base of the body to the base of the pillar.
  • a spring for example pneumatic, actuating vertically a pulley over which passes a cable going from the base of the body to the base of the pillar.
  • this pulley is double, namely a pulley on which is wound a cable going to the base of the body and a cam pulley with a variable profile, on which is wound a cable going to the base of th pillar.
  • the variable profile of the cam pulley makes it possible to compensate for the variation of the force supplied by the pneumatic spring during the course of its operation. It will further be noted that, in order to balance moving systems of different weights, it is only necessary to change the diameter of the ordinary pulley, the same pneumatic spring and the same cam pulley being siutable for all moving svstems.
  • the device for adjusting the orientation briefly comprises, at the top of the pillar, a vertical trunnion, on which is pivoted a yoke rigidly fixed to the drawing board, provided with a friction system and locking by screw, bringing together two parts tangential to the trunnion.
  • the device for regulating the inclination briefly comprises, at the top of the said yoke, a horizontal shaft on which is pivoted the drawing board proper, and a system with balancing by spring and locking by coaxial screw.
  • the lateral translation device comprises, between the said inclination-regulating device and the drawing board, two transverse parallel rails rigidly fixed to the board and permitting its sliding movement.
  • FIG. 1 is a general side elevation with parts broken away
  • FIG. 2 is a general vertical cross-section, taken along the broken line II-II of FIG. 1;
  • FIG. 3 is a horizontal section taken along the broken line III-III of FIG. 2;
  • PG. 4 is an explanatory detail on a larger scale of the central portion of FIG. 3, showing the device for sliding in height;
  • FIG. 5 is a side elevation, similar to FIG. 1, showing diagrammatically the balancing of the moving portion
  • FIG. 6 is a side view and FIG. 7 is an axial section of a vertical balancing cam-pulley;
  • FIG. 8 is a detail in cross-section taken along the line VIII-VIII of FIG. 2, showing the orientation locking device.
  • This preferred construtcion of the drawing board according to the invention rests on the ground by means of a base 1 with an adjustable foot 2, comprising a vertical body 3.
  • the horizontal section of this body (FIG. 3 and the detail shown in FIG. 4) is generally rectangular with rounded corners, but one of the large sides of the rectangle is open, and is only closed by a thin plate 4.
  • the structural section has thus the shape of a U, in which the distance apart of the legs can be regulated by one or several pairs of threaded hori zontal rods 5 placed behind the plate 4 and joined together in pairs by a diflerential nut 6.
  • two pairs of yokes 7 each supporting a pair of rollers 8 on ball bearings, mounted in the bisecting planes of the angles of the body 3.
  • the body 3 there is adapted to slide vertically a pillar 11, the section of Which is an irregular octagon, that is to say a rectangle, parallel to the rectangle of the body 3, but in which the corners have been rounded-off by the chamfers 12, which roll on the rollers 8.
  • One pair of rods is preferably placed at the same height, or at least close to it, of each set of rollers 8.
  • the said chamfers 12 may be fiat but they are preferably rounded as shown, and the rollers 8 have a concave profile with a curvature slightly smaller.
  • the locking of the vertical sliding movement of the pillar 11 in the body 3 is obtained by the application against a large face of the pillar 11 of a plate 21 provided with an adherent sheet 22, for example of rubber and sliding on studs 23 on the body 3' by the action of a pushrod 24 actuated by a screw 25 controlled in rotation by a toothed wheel 26, a chain 27 and a tension spring 28 fixed at 29 to the body 3, as shown in FIG. 2.
  • the position of the pushrod 24 and the screw 25 is of course adjustable by means of a nut 30 (see FIG. 4). Release is obtained by depressing a pedal 32 mounted on the base 1, the arm 33 of which acts through a cable 34 on the chain 27 in opposition to the spring 28. This pedal 32 may be fixed in the released position by the co-operation of the arm 33 with a pawl 35 (FIG. 1).
  • the balancing of the vertical sliding movement comprises a pneumatic spring (see FIG. 5), the cylinder 41 of which is mounted on the base 1, and in which the piston rod 42 carries a horizontal shaft 43.
  • a pneumatic spring of this kind supplies a force which decreases with its elongation, and the invention provides a compensation for this decrease.
  • the shaft 43 carries two keyed pulleys 44 and 45; on the pulley 44 is attached and wound a cable 46 fixed at 47 to the foot of the clylinder 41. On the pulley 45 is attached and wound a cable 48 fixed at 49 to the foot of the pillar 11.
  • the pulley 44 is cylindrical but the pulley 45 has a variable profile, thus producing the desired compensation.
  • the pulley 45 may be placed between two pulleys 44, each provided with a cable 46. Another arrangement of these members is shown in FIGS. 1 and 2.
  • the cylinder is fixed inside and at the top of the pillar 11 and ts rod 42 carries at its lower extremity a triple pulley 51 (see FIGS. 6 and 7).
  • This pulley 51 is provided with two circular symmetrical grooves 52, in each of which is attached and wound a cable 53 coming from a fixed point 54 of the body 3 (see FIG. 2), and with a groove 55 having a variable radius, in which is attached and wound a cable 56 coming from a fixed point 57 of the pillar 11, as shown in FIG. 2.
  • the pillar 11 is provided at its upper portion (see FIG. 2) with a vertical trunnion 61 keyed at 6 2 in a bush 63.
  • a yoke or cap 64 On the trunnion 61 is pivoted a yoke or cap 64 which is bored slightly oversize as shown in FIG. 8.
  • the orientation locking lever 65 actuates a screw 66 which grips tangentially on the trunnion 61 by a nut 67 with a counter support 68.
  • the cap 64 is provided at its upper portion (see FIG. 2) with two bearings 71 and 72, in which rotates a horizontal shaft 73, keyed at 74 in a slide 75.
  • the inclination locking 4 lever 76 actuates a screw 77, coaxial with the shaft 73 and clamping against the side of the cap '64 an end-plate 78 provided with a friction lining 79.
  • a coaxial spring 81 at the other extremity of the shaft 73 ensures the balance in inclination of the drawing board.
  • the lower part of the structure of the drawing board proper comprises two rails 83 (see FIGS. 1 and 2), mounted transversely and fixed to two vertical metallic members 84 mounted under the drawing board 85, the sliding of the rails 83 on the slide 75 permitting the lateral translation movement of the board.
  • a drawing board with adjustment in height comprising two members constituted as a vertical body and a pillar adapted to slide in said body, one of these two members having a closed section and the other an open section substantially parallel to the first, said sections being adapted one to enclose the other, non-elastic means for producing a slight deformation of said open section to eliminate play between said sections, a balancing device for the vertical sliding movement of the pillar including a pneumatic spring which comprises a jack, a rod for said jack, a pulley mounted on said rod on an extremity there' of, a cable attached and wound on said pulley, a cam pulley with a variable profile mounted on the extremity of said rod and fast with said first pulley, and a second cable attached and wound on said cam pulley, one of said cables having a free extremity attached to the body, the other cable having a free extremity attached to said pillar.
  • each said chamfer is of rounded convex form and each said roller has a concave rounded profile having a curvature slightly less than the curvature of said chamfer.
  • a drawing board with adjustments in height, in orientation, in inclination and in lateral translation with respect to its base and comprising a vertical body of rectangular section open on one side, threaded rods with differential nuts adapted to regulate the opening of said rectangular section, at two different levels, a set of four rollers mounted along the bisecting lines of the angles of said rectangle, a pillar of polygonal section with chamfered corners, the chamfers being convex and the associated rollers concave with a curvature slightly less than that of said chamfers, said pillar being slidably movable in said vertical body by rolling of the chamfers on the rollers, means for locking the vertical sliding movement comprising, opposite one face of said pillar, a plate lined' with a sheet of rubber and a pedal returned to the locking position by a spring with a holding pawl and adapted to actuate said plate, means for balancing said vertical sliding movement comprising a pneumatic jack mounted inside said pillar, a rod for said jack

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  • Treatment Of Fiber Materials (AREA)
  • Unwinding Webs (AREA)
  • Transmission Devices (AREA)
  • Confectionery (AREA)
  • Handcart (AREA)
  • Bearings For Parts Moving Linearly (AREA)
US718726A 1967-04-11 1968-04-04 Drawing board Expired - Lifetime US3543282A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR102323A FR1531447A (fr) 1967-04-11 1967-04-11 Table à dessiner

Publications (1)

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US3543282A true US3543282A (en) 1970-11-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
US718726A Expired - Lifetime US3543282A (en) 1967-04-11 1968-04-04 Drawing board

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US (1) US3543282A (enrdf_load_stackoverflow)
BE (1) BE713382A (enrdf_load_stackoverflow)
CH (1) CH524341A (enrdf_load_stackoverflow)
DK (1) DK127035B (enrdf_load_stackoverflow)
ES (1) ES352664A1 (enrdf_load_stackoverflow)
FR (1) FR1531447A (enrdf_load_stackoverflow)
GB (1) GB1168373A (enrdf_load_stackoverflow)
NL (1) NL139657B (enrdf_load_stackoverflow)
NO (1) NO133219C (enrdf_load_stackoverflow)
SE (1) SE353648B (enrdf_load_stackoverflow)

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682108A (en) * 1970-02-24 1972-08-08 Evgeny Mikhailovich Perminov Drawing machine
US3710735A (en) * 1971-01-04 1973-01-16 American Hospital Supply Corp Table and elevation lock therefor
US3789777A (en) * 1970-11-03 1974-02-05 C Sautereau Planetary type drawing table
US3888444A (en) * 1971-07-26 1975-06-10 American Hospital Supply Corp Adjustable support column
US4588226A (en) * 1983-12-23 1986-05-13 Erda, Inc. Adjustable chair for aircraft and the like
US4605189A (en) * 1983-09-07 1986-08-12 Alpia S.A. Anti-fail device for locking a drawing-board pillar against motion
US4681042A (en) * 1981-02-20 1987-07-21 Roberts Fred E Adjustable table top assembly
US4703701A (en) * 1985-04-19 1987-11-03 Inaba Seisakusho Ltd. Desk with height and angle adjustable table top
USD296851S (en) 1986-05-08 1988-07-26 Herman Miller, Inc. Adjustable support table for a keyboard
US5313892A (en) * 1991-10-21 1994-05-24 Tice William A Table with height and tilt adjust
WO1997027420A1 (en) 1996-01-11 1997-07-31 Long Dennis L Counterbalance apparatus
WO1999062375A3 (en) * 1998-06-05 2000-02-10 Miller Herman Inc Height adjustable workstation
US6026755A (en) * 1996-01-11 2000-02-22 Long; Dennis L. Counterbalance apparatus
US6378446B1 (en) 1999-12-30 2002-04-30 Dennis L. Long Counterbalance apparatus
US20040035336A1 (en) * 2002-08-26 2004-02-26 Coble Fred Whittaker Elevating desk/work surface
US20040035989A1 (en) * 2002-08-21 2004-02-26 Sweere Harry C. Stand
US20040245419A1 (en) * 2003-01-17 2004-12-09 Sweere Harry C. Support arm
US20040250635A1 (en) * 2003-05-20 2004-12-16 Sweere Harry C. Lift mechanism based on torque equalization principles
US20050139734A1 (en) * 2000-11-28 2005-06-30 Constant Force Technology, Llc Monitor support system
US20050145762A1 (en) * 2000-11-28 2005-07-07 Constant Force Technology, Llc Methods and apparatus for generating force and torque
US20060118680A1 (en) * 2004-12-07 2006-06-08 Benq Corporation Display stand
US20060130713A1 (en) * 2004-12-17 2006-06-22 Steelcase Development Corporation Load compensator for height adjustable table
US20070137535A1 (en) * 2005-12-16 2007-06-21 Steelcase Development Corporation Load compensator for height adjustable table
US20080026892A1 (en) * 2006-07-26 2008-01-31 Ergotron, Inc. Balanced moment lift system and method
US20080121150A1 (en) * 2006-11-14 2008-05-29 Unifor S.P.A Telescopic table support
US20080237556A1 (en) * 2007-03-26 2008-10-02 Chung-Hsien Chin Electronic Device with an Elevating Mechanism
US20100176254A1 (en) * 2003-05-20 2010-07-15 Ergotron, Inc. Lift mechanism systems and methods
US8714533B2 (en) 2011-02-25 2014-05-06 Honda Motor Co., Ltd. Clay model support device
US8925154B2 (en) 2003-05-20 2015-01-06 Ergotron, Inc. Pivot mechanism for adjusting a position of an electronic display
US9222616B2 (en) 2012-03-30 2015-12-29 Ergotron, Inc. Counterbalancing lift mechanisms and methods
US9380866B1 (en) * 2015-02-11 2016-07-05 Bradford L. Davis Telescopic support
CN106175108A (zh) * 2016-07-12 2016-12-07 金文宇 转动式两面夹取画板承载架
CN106555923A (zh) * 2015-09-24 2017-04-05 通用电气公司 一种显示器悬挂装置及显示器装置
CN107198353A (zh) * 2016-07-11 2017-09-26 商丘学院 一种艺术设计用多功能绘图设备
CN109624594A (zh) * 2018-11-13 2019-04-16 黄今典 一种具有升降和角度调节功能的学生用绘画板
CN110774821A (zh) * 2019-10-31 2020-02-11 江西环境工程职业学院 一种组合式便捷绘画板
US10856652B2 (en) * 2017-03-21 2020-12-08 Rol Ergo Ab Telescopic column with internal cable
US11149379B2 (en) * 2016-12-30 2021-10-19 Lg Electronics Inc. System iron

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH507472A (de) * 1970-01-19 1971-05-15 Massstabfabrik Schaffhausen Ag Verstell- und Arretiervorrichtung, insbesondere für einen Zeichentisch
CN110774820B (zh) * 2019-10-31 2021-03-12 安徽财经大学 一种可转动式美术用具放置装置
CN114435008B (zh) * 2022-02-14 2023-03-24 山东第一医科大学(山东省医学科学院) 一种大学数学教学用便定位功能的多功能绘图板

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US744613A (en) * 1903-04-02 1903-11-17 William F Reimold Ophthalmometer or other tables.
US2469896A (en) * 1945-06-15 1949-05-10 Harold M Schaef Adjustable pedestal stool
US3194187A (en) * 1964-01-13 1965-07-13 Borg Warner Overbed table
US3285207A (en) * 1964-02-15 1966-11-15 Ilse Werke Kg Extensible support column
US3358620A (en) * 1965-08-24 1967-12-19 Parigi Paolo Drawing board or work table with raisable and inclinable working surface
US3380405A (en) * 1966-11-25 1968-04-30 American Seating Co Overbed table

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US744613A (en) * 1903-04-02 1903-11-17 William F Reimold Ophthalmometer or other tables.
US2469896A (en) * 1945-06-15 1949-05-10 Harold M Schaef Adjustable pedestal stool
US3194187A (en) * 1964-01-13 1965-07-13 Borg Warner Overbed table
US3285207A (en) * 1964-02-15 1966-11-15 Ilse Werke Kg Extensible support column
US3358620A (en) * 1965-08-24 1967-12-19 Parigi Paolo Drawing board or work table with raisable and inclinable working surface
US3380405A (en) * 1966-11-25 1968-04-30 American Seating Co Overbed table

Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682108A (en) * 1970-02-24 1972-08-08 Evgeny Mikhailovich Perminov Drawing machine
US3789777A (en) * 1970-11-03 1974-02-05 C Sautereau Planetary type drawing table
US3710735A (en) * 1971-01-04 1973-01-16 American Hospital Supply Corp Table and elevation lock therefor
US3888444A (en) * 1971-07-26 1975-06-10 American Hospital Supply Corp Adjustable support column
US4681042A (en) * 1981-02-20 1987-07-21 Roberts Fred E Adjustable table top assembly
US4605189A (en) * 1983-09-07 1986-08-12 Alpia S.A. Anti-fail device for locking a drawing-board pillar against motion
US4588226A (en) * 1983-12-23 1986-05-13 Erda, Inc. Adjustable chair for aircraft and the like
US4703701A (en) * 1985-04-19 1987-11-03 Inaba Seisakusho Ltd. Desk with height and angle adjustable table top
USD296851S (en) 1986-05-08 1988-07-26 Herman Miller, Inc. Adjustable support table for a keyboard
US5313892A (en) * 1991-10-21 1994-05-24 Tice William A Table with height and tilt adjust
WO1997027420A1 (en) 1996-01-11 1997-07-31 Long Dennis L Counterbalance apparatus
US5718406A (en) * 1996-01-11 1998-02-17 Long; Dennis L. Counterbalance apparatus
US6026755A (en) * 1996-01-11 2000-02-22 Long; Dennis L. Counterbalance apparatus
WO1999062375A3 (en) * 1998-06-05 2000-02-10 Miller Herman Inc Height adjustable workstation
US6378446B1 (en) 1999-12-30 2002-04-30 Dennis L. Long Counterbalance apparatus
US20050139734A1 (en) * 2000-11-28 2005-06-30 Constant Force Technology, Llc Monitor support system
US7506853B2 (en) 2000-11-28 2009-03-24 Ergotron, Inc. Methods and apparatus for generating force and torque
US20050145762A1 (en) * 2000-11-28 2005-07-07 Constant Force Technology, Llc Methods and apparatus for generating force and torque
US20040035989A1 (en) * 2002-08-21 2004-02-26 Sweere Harry C. Stand
US6997422B2 (en) 2002-08-21 2006-02-14 Ergotron, Inc. Stand
US20040035336A1 (en) * 2002-08-26 2004-02-26 Coble Fred Whittaker Elevating desk/work surface
US7252277B2 (en) 2003-01-17 2007-08-07 Ergotron, Inc. Support arm
US20040245419A1 (en) * 2003-01-17 2004-12-09 Sweere Harry C. Support arm
US8925154B2 (en) 2003-05-20 2015-01-06 Ergotron, Inc. Pivot mechanism for adjusting a position of an electronic display
US9687073B2 (en) 2003-05-20 2017-06-27 Ergotron, Inc. Lift mechanism systems and methods
US9360152B2 (en) 2003-05-20 2016-06-07 Ergotron, Inc. Lift mechanism systems and methods
US10267451B2 (en) 2003-05-20 2019-04-23 Ergotron, Inc. Lift mechanism systems and methods
US9267639B2 (en) 2003-05-20 2016-02-23 Ergotron, Inc Lift mechanism systems and methods
US20040250635A1 (en) * 2003-05-20 2004-12-16 Sweere Harry C. Lift mechanism based on torque equalization principles
US8286927B2 (en) 2003-05-20 2012-10-16 Ergotron, Inc. Lift mechanism systems and methods
US20100176254A1 (en) * 2003-05-20 2010-07-15 Ergotron, Inc. Lift mechanism systems and methods
US20100193653A1 (en) * 2003-05-20 2010-08-05 Ergotron, Inc. Lift mechanism systems and methods
US20060118680A1 (en) * 2004-12-07 2006-06-08 Benq Corporation Display stand
US7658359B2 (en) 2004-12-17 2010-02-09 Steelcase Development Corporation Load compensator for height adjustable table
US9913532B1 (en) 2004-12-17 2018-03-13 Steelcase Inc. Load compensator for height adjustable table
US8091841B2 (en) 2004-12-17 2012-01-10 Steelcase Inc. Load compensator for height adjustable table
US20060145036A1 (en) * 2004-12-17 2006-07-06 Steelcase Development Corporation Height adjustable table
US10051955B1 (en) 2004-12-17 2018-08-21 Steelcase Inc. Load compensator for height adjustable table
US9591920B2 (en) 2004-12-17 2017-03-14 Steelcase Inc. Load compensator for height adjustable table
US20060130713A1 (en) * 2004-12-17 2006-06-22 Steelcase Development Corporation Load compensator for height adjustable table
US10420417B1 (en) 2004-12-17 2019-09-24 Steelcase Inc. Load compensator for height adjustable table
US9826825B1 (en) 2004-12-17 2017-11-28 Steelcase Inc. Load compensator for height adjustable table
US20070137535A1 (en) * 2005-12-16 2007-06-21 Steelcase Development Corporation Load compensator for height adjustable table
US20080026892A1 (en) * 2006-07-26 2008-01-31 Ergotron, Inc. Balanced moment lift system and method
US8228668B2 (en) 2006-07-26 2012-07-24 Ergotron, Inc. Balanced moment lift system and method
US20080121150A1 (en) * 2006-11-14 2008-05-29 Unifor S.P.A Telescopic table support
US8011308B2 (en) * 2006-11-14 2011-09-06 Unifor S.P.A. Telescopic table support
US7748668B2 (en) * 2007-03-26 2010-07-06 Benq Corporation Electronic device with an elevating mechanism
US20080237556A1 (en) * 2007-03-26 2008-10-02 Chung-Hsien Chin Electronic Device with an Elevating Mechanism
US8714533B2 (en) 2011-02-25 2014-05-06 Honda Motor Co., Ltd. Clay model support device
US9222616B2 (en) 2012-03-30 2015-12-29 Ergotron, Inc. Counterbalancing lift mechanisms and methods
US9380866B1 (en) * 2015-02-11 2016-07-05 Bradford L. Davis Telescopic support
CN106555923A (zh) * 2015-09-24 2017-04-05 通用电气公司 一种显示器悬挂装置及显示器装置
US10156318B2 (en) * 2015-09-24 2018-12-18 General Electric Company Monitor suspension system with gas spring and pulley block
CN106555923B (zh) * 2015-09-24 2020-03-17 通用电气公司 一种显示器悬挂装置及显示器装置
CN107198353A (zh) * 2016-07-11 2017-09-26 商丘学院 一种艺术设计用多功能绘图设备
CN106175108B (zh) * 2016-07-12 2018-04-27 金文宇 转动式两面夹取画板承载架
CN106175108A (zh) * 2016-07-12 2016-12-07 金文宇 转动式两面夹取画板承载架
US11149379B2 (en) * 2016-12-30 2021-10-19 Lg Electronics Inc. System iron
US10856652B2 (en) * 2017-03-21 2020-12-08 Rol Ergo Ab Telescopic column with internal cable
CN109624594A (zh) * 2018-11-13 2019-04-16 黄今典 一种具有升降和角度调节功能的学生用绘画板
CN110774821A (zh) * 2019-10-31 2020-02-11 江西环境工程职业学院 一种组合式便捷绘画板
CN110774821B (zh) * 2019-10-31 2021-03-23 江西环境工程职业学院 一种组合式便捷绘画板

Also Published As

Publication number Publication date
NL6805178A (enrdf_load_stackoverflow) 1968-10-14
SE353648B (enrdf_load_stackoverflow) 1973-02-12
BE713382A (enrdf_load_stackoverflow) 1968-08-16
NO133219C (enrdf_load_stackoverflow) 1976-03-31
NO133219B (enrdf_load_stackoverflow) 1975-12-22
FR1531447A (fr) 1968-07-05
CH524341A (fr) 1972-06-30
DE1761176A1 (de) 1972-05-25
GB1168373A (en) 1969-10-22
ES352664A1 (es) 1969-07-16
DK127035B (da) 1973-09-17
DE1761176B2 (de) 1975-06-05
NL139657B (nl) 1973-09-17

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