US3789777A - Planetary type drawing table - Google Patents

Planetary type drawing table Download PDF

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Publication number
US3789777A
US3789777A US00194855A US3789777DA US3789777A US 3789777 A US3789777 A US 3789777A US 00194855 A US00194855 A US 00194855A US 3789777D A US3789777D A US 3789777DA US 3789777 A US3789777 A US 3789777A
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US
United States
Prior art keywords
support arm
shaft
column
discs
board
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.)
Expired - Lifetime
Application number
US00194855A
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English (en)
Inventor
C Sautereau
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.)
Individual
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Individual
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Filing date
Publication date
Priority claimed from FR7039560A external-priority patent/FR2112636A5/fr
Priority claimed from FR7133900A external-priority patent/FR2153699A6/fr
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3789777A publication Critical patent/US3789777A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47B27/02—Adjustable drawing tables without balancing means
    • 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

Definitions

  • ABSTRACT A drawing table of planetary type.
  • the drawing board [22] (SI. performs general rotational movements about a fixed .f. I; t u vertical axis acts as a support base 1 le 0 earc and rotational movements on itself about a vertical axis, in the manner of a planet around the sun.
  • References cued table comprises a fixed pivot with vertical axis, re-UNITED STATES PATENTS ferred to as a column, a radial arm, referred to as a 1,529,022 3/1925 Fraser 108/6 support arm, which turns in a horizontal plane about 2,699,938 9/1952 Wells 08/ said pivot, and a board which is mounted rotatably 2,795,299 6/1957 Batori 108/ about a vertical axis at the end of the support arm. 2,601,998 7/1952 Murray 108/6 X 3,167,036 1/1965 Brossard 108/4 5 Claims, 28 Drawing Figures I l i 16 PATENTED 51974 sum 3 OF 8 FIG.17
  • PATENTEUFEB S1914 saw a or a 1 PLANETARY TYPE DRAWING TABLE BACKGROUND AND NATURE OF THE INVENTION
  • the invention also concerns various improvements in the above mentioned drawing tables.
  • the improve ments concern the arresting of the vertical movement of the support arm on the column, actuation of the arresting means, adjustment of the horizontality of the support arm, arresting of the rotary movement of the support arm on the column, and arresting of the inclination of the board with means for controlling same.
  • the vertical movement can be arrested, in accordance with the invention, by the engagement on a vertical threaded rod which is rigidly fixed to the column, of a portion (for example less than half) of a nut which is slidable transversely under the action of a spring in the shaft carrying the support arm.
  • the arresting of the vertical movement can be controlled by a flexible cable which moves said nut portion away from the threaded rod, and the flexible cable control handle is slidable in grooves in the lower edge of the board.
  • arresting of the rotary movement of the support arm can be effected by the mutual friction between two alternate sets of discs, some of which are rigidly fixed to the shaft while the others are mounted in the support arm on a screw, the screwing movement of which tightens the discs against each other.
  • arresting the inclining movement of the board can be effected by the mutual friction between two alternate sets of concentric discs, some of which are rigidly fixed to the board while the others are rigidly fixed to the board orientation means, the discs beingtightened against each other by a ring in which there is transversely pivoted an eccentric adjustment shaft, and by a crank arm between said eccentric and an eccentric on a shaft which is pivotable transversely at'the end of the inclining shaft, under the action of an arresting lever, the handle of which is displaced under the edge of the drawing board.
  • FIGS. 1 to 10 are diagrammatic plan views showing the table according to the invention with the board in various positions relative to the support means;
  • FIGS. 11 to 13 show an embodiment of the invention
  • FIG. 1 1 being a diagrammatic elevational overall view
  • FIG. 12 being an elevational view perpendicular to the view of FIG. 11, and
  • FIG. 13 being a plan view;
  • FIG. 14 is a detail in cross-section of the region comprising the article of furniture and the arm of the embodiment shown in FIGS. 11 to 13;
  • FIG. 15 is a plan view with part broken away, FIG. 16 is a front elevation, and FIG. 17 is a rear elevation: these three Figures situate on the drawing table the improvements according to the invention;
  • FIG. 18 is an axial section of the means for arresting the vertical movement of the board according to the invention.
  • FIG. 19 is a cross-section taken along the line XIX- XIX of FIG. 18;
  • FIG. 20 which is similar to FIG. 19, corresponds to the released-position of the arresting means shown in FIGS. 18 and 19;
  • FIG. 21 which is similar to FIG. 16, FIG. 22 which is similar to FIG. 18, and the detail shown in FIG. 23, illustrate the means for controlling the above mentioned arresting of the vertical movement, in accordance with the invention
  • FIG. 24 shows a vertical section of the means for adjusting the horizontality of the support arm according to the invention.
  • FIG. 25 shows a vertical axial section of the means for arresting the rotary movement of the supportarm according to the invention
  • FIG. 26 is a cross-section taken along the line XXVI- XXVI of FIG. 25;
  • FIG. 27 is an axial cross-section
  • FIG. 28 is an end view, of the means for arresting the inclining movement of the board, with the actuating means thereof, in accordance with the invention.
  • FIGS. 1 to 10 are diagrammatic plan views showing various positions of the drawing board relative to the support means, the direction of work on the board being indicated by an arrow F; for example the board 1 can be turned so as to face towards the right, and positioned against the desk 2 (FIG. 1), or in front of the desk 2 (FIG. 2), or to theright in front of the desk (FIG. 3), or to the right beside the desk 2 (FIG. 4); the board 1 can likewise be turned to face towards the left, against the desk 2 (FIG. 5), which is a position in which it takes up the minimum amount of space, or beside the desk 2 (FIG.
  • FIGS. 1 to 10 are diagrammatic plan views showing various positions of the drawing board relative to the support means, the direction of work on the board being indicated by an arrow F; for example the board 1 can be turned so as to face towards the right, and positioned against the desk 2 (FIG. 1), or in front of the desk 2 (FIG. 2), or to theright in front of the desk (FIG
  • the user of the drawing table can position the board as he wishes, irrespective of the conditions of his environment, such as the direction of the light or lights.
  • the article of furniture 2 is preferably provided with a ballast weight 3 in order to stabilise the article 2 in spite of the cantilever weight of the board 1 and the weight applied thereto by the user who might rest thereon.
  • a height adjustment means which can be of any known type: for example it can comprise a telescopic shaft 4 which is mounted-on rollers in the column 5, compensated by a pneumatic spring 6, and actuated by a motor 7 and transmission 8.
  • the height adjustment means is provided with a pivot assembly 1 l with vertical axis 12;
  • the pivot assembly 11 can comprise a spindle portion 13 which is rigidly fixed with the shaft 4, and two discs which are rigidly fixed to the radial arm or support arm 21, one disc 14 being at the top and the other disc 15 being at the bottom;
  • the disc 15 can be knurled on its lower face which bears by way of plastics washer 16 on the upper knurled face of a non-rotatable portion 17 of the shaft 4;
  • a hand control lever 18 locks the radial arm 21, by tightening the above described assembly.
  • the radial support arm 21 carries the board 1 by way of per se known orientation means 22 with control ,hand lever 23 and inclining means 24 with control hand lever 25.
  • FIGS. 15, 16, and 17 show the drawing board 1, the support arm 21 and the column which is rigidly fixed to the article of furniture 2: improvements according to the invention will now be described, namely the means for arresting the vertical movement of the support arm 21 on the column 5, the means for controlling the arresting means, the means for adjusting the horizontality of the support arm 21, the means for arresting the rotary movement of the support arm 21 on the column 5, and the means for arresting the inclining movement of the board 1 with the actuation means thereof.
  • FIGS. 18, 19 and 20 which show the means for arresting the vertical movement of the board: between two side plates 31 the columns 5 carries a threaded rod 32;.the telescopic shaft 4 which is slidable vertically with the support arm 21 relative to the column 5, is provided with a bush 33 in which a portion, for example a little less than half, of a nut 34, is transversely slidable.
  • a spring 39 urges the nut 34 against the threaded rod 32, which ensures precise arresting Without play (FIG. 19).
  • the nut 34 is moved away from the threaded rod 32 (FIG.
  • a flexible cable 35 of the known type referred to as a Bowden cable the movement of the nut 34 away from the rod 32 being limited by a stud 36 which isfixed to the nut 34 and which is slidable in an elongate aperture 37 in the bush 33.
  • a stud 36 which isfixed to the nut 34 and which is slidable in an elongate aperture 37 in the bush 33.
  • threaded rod 32 preferably has a triangular thread
  • FIGS. 21, 22 and 23, which show the means for actuating the vertical movement arresting means described above: the flexible cable 35 ends in a sleeve 41 having lugs 42 (FIG. 23) which are slidable in grooves 43 in the lower edge of the board 1; the handle 44 of the sleeve 41, which actuates the cable 35 and the nut 34, is thus movable along the lower edge of the board 1 (FIG. 19), and is always immediately accessible.
  • FIG. 24 this figure shows the vertical shaft 4 (which is slidable vertically relative to the column 5), with its spindle portion 13 on which the support arm 21 is pivoted. Horizontally of the radial arm 21 is ensured by one (or more) vertical threaded pins 46 which are screwable at 47 in the radial support arm 21, thrusting against a thrust bearing 48 supported.
  • the support arm 21 is pivoted, on the spindle portion 13 of the vertical shaft 4, by a roller bearing 51 on which it is a force fit, and by a ring 52 made of self-lubricating material.
  • the rotary movement of the support arm 21 on the vertical shaft 4 is arrested by the mutual friction when tightened together, between the faces of two alternate sets of discs 53 and 54; the discs 53 which have a rectangular central aperture are mounted, by means of two plates 55 and pointed screws 56, on a rectangular part of the spindle portion 13, so that they are non-rotatably secured on the spindle portion 13 which is also nonrotatable;
  • the discs 54 are held in the support arm 21 by a gripping screw 57 which is screwed in a ring 58 fixed to the arm 21; the arresting action is applied and released by operating a removable key (not shown) which is inserted into a recess 59in the screw 57 when the user wishes to change the orientation of the support arm 21 and the drawing board.
  • inclination of the board 1 'by rotation about the shaft 24, is arrested by the mutual friction when tightened together between the faces of two alternate sets of concentric discs 61 and 62.
  • the discs 61 are fixed to the board 1 by lugs 63 which are housed in a recess 64 in the support 65 of the board.
  • the discs 62 are fixed to the support 66 (of the means 22 for orienting the board 1), by means of lugs 67 which are housed in a recess 68 in the support 66; the discs 61 and 62 are tightened together by means of a ring 71 which is slidable on the shaft 24 and in which a shaft 72 forming at the centre an eccentric 73 is transversely pivotable.
  • the eccentric 73 is connected by a crank arm 74 to another eccentric 75 of a shaft 76 which is pivotable at the end of the shaft 24 under the action of a control lever 77.
  • the handle 78 of the lever 77 (FIGS. 15 and 16) is displaced below the lower edge of the board 1, close to said lower edge and parallel to the board, so that operation thereof is practical and is also immediately accessible.
  • a drawing table comprising afixed pivot column, extending along a vertical axis, a radial support arm which is rotatable in a horizontal plane about said column, a board, means permitting the board to be oriented around a vertical axis on the free end of said support arm, means for adjusting the height of said support arm on said column, and means for arresting said height adjustment means, said height adjustment means comprising a shaft which is slidable vertically in said column and which carries said support arm, said arresting means comprising a vertical threaded rod which is fixed to said column, a nut portion which is slidable transversely in the shaft, a spring in the shaft for applying the nut portion against the threaded rod, and means for adjustment of the horizontality of the support arm including at least one vertical threaded pin which is screwed in the support arm and a thrust bearing under the end of said pin which bears on the end of the shaft.
  • a drawing table comprising a fixed pivot column, extendingralong a vertical axis, a radialsupport arm which is rotatable in a horizontal plane about said column, a board, means permitting the board to be oriented around a vertical axis on the free end of said support arm, means for adjusting the height of said support I arm on said column, and means for arresting said height adjustment means
  • said height adjustment means comprising a shaft which is slidable vertically in said column and which carries said support arm
  • said arresting means comprising a vertical threaded rod which is fixed to said column, a nut portion which is slidable transversely in the shaft, a spring in the shaft for applying the nut portion against the threaded rod, and means for arresting the rotary movement of the support arm including two alternate sets of horizontal discs, the discs of a first set being to the shaft and a vertical screw which carries the discs of the second set and which is screwed in the support arm, to tighten the discs against each other
  • a drawing table comprising a fixed pivot column extending along a vertical axis, a radial support arm which is rotatable in a horizontal plane about said column, a board, means permitting the board to be oriented around a vertical axis on the end of said support arm, means for adjusting the height of said support arm on said column, and means for arresting said height adjustment means
  • said height adjustment means comprising a shaft which is slidable vertically in said column and which carries said support arm
  • said arresting means comprising a vertical threaded rod which is fixed to said column, a nut portion which is slidable transversely in the shaft, and a spring in the shaft for applying the nut portion against the threaded rod
  • means for arresting said board orienting means including two vertical alternate sets of discs which are concentric with said inclining axis, the discs of a first set being fixed to the board, the discs of the second set being fixed to said orienting means, a ring for tightening said discs

Landscapes

  • Machine Tool Units (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Document Processing Apparatus (AREA)
  • Sheet Holders (AREA)
  • Legs For Furniture In General (AREA)
  • Motorcycle And Bicycle Frame (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
US00194855A 1970-11-03 1971-11-02 Planetary type drawing table Expired - Lifetime US3789777A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7039560A FR2112636A5 (fr) 1970-11-03 1970-11-03
FR7133900A FR2153699A6 (fr) 1971-09-21 1971-09-21

Publications (1)

Publication Number Publication Date
US3789777A true US3789777A (en) 1974-02-05

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ID=26216027

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Application Number Title Priority Date Filing Date
US00194855A Expired - Lifetime US3789777A (en) 1970-11-03 1971-11-02 Planetary type drawing table

Country Status (8)

Country Link
US (1) US3789777A (fr)
JP (1) JPS5312855B1 (fr)
BE (1) BE774227A (fr)
CH (1) CH543257A (fr)
DE (1) DE2154910C3 (fr)
ES (1) ES202619Y (fr)
GB (1) GB1351661A (fr)
IT (1) IT942731B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54163158U (fr) * 1978-05-08 1979-11-15
GB2156669B (en) * 1984-03-31 1988-05-25 Keith Derrick Thame Sunderland Table and a support therefor
CN110101208A (zh) * 2019-05-07 2019-08-09 安徽职业技术学院 一种能够提高工作效率的艺术设计工作台

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1529022A (en) * 1924-01-18 1925-03-10 Chelsea C Fraser Connecting device for drawing-table tops and standards
DE804266C (de) * 1949-06-30 1951-04-19 Paul Garthe Fa Tafel fuer Vorfuehrungs- und Schulungszwecke
GB658039A (en) * 1949-05-11 1951-10-03 Gosta Andersson Improvements in drawing-tables
US2601998A (en) * 1949-03-31 1952-07-01 Aubrey S Murray Pedestal drafting table or the like
US2609938A (en) * 1951-04-06 1952-09-09 Merle N Wells Bedside stand and tray
US2795299A (en) * 1955-06-20 1957-06-11 Oscar E Batori Mounting structure sensitive to the direction of movement of the mounted object, and clutch incorporated therein
US3167036A (en) * 1963-02-12 1965-01-26 Frank I Brossard Reading stand
US3199825A (en) * 1964-07-27 1965-08-10 Foy E Bellows Table-easel combination
US3543282A (en) * 1967-04-11 1970-11-24 Lucien Emile Drawing board

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1529022A (en) * 1924-01-18 1925-03-10 Chelsea C Fraser Connecting device for drawing-table tops and standards
US2601998A (en) * 1949-03-31 1952-07-01 Aubrey S Murray Pedestal drafting table or the like
GB658039A (en) * 1949-05-11 1951-10-03 Gosta Andersson Improvements in drawing-tables
DE804266C (de) * 1949-06-30 1951-04-19 Paul Garthe Fa Tafel fuer Vorfuehrungs- und Schulungszwecke
US2609938A (en) * 1951-04-06 1952-09-09 Merle N Wells Bedside stand and tray
US2795299A (en) * 1955-06-20 1957-06-11 Oscar E Batori Mounting structure sensitive to the direction of movement of the mounted object, and clutch incorporated therein
US3167036A (en) * 1963-02-12 1965-01-26 Frank I Brossard Reading stand
US3199825A (en) * 1964-07-27 1965-08-10 Foy E Bellows Table-easel combination
US3543282A (en) * 1967-04-11 1970-11-24 Lucien Emile Drawing board

Also Published As

Publication number Publication date
CH543257A (fr) 1973-10-31
BE774227A (fr) 1972-02-14
ES202619Y (es) 1976-03-01
DE2154910B2 (de) 1977-10-27
JPS5312855B1 (fr) 1978-05-04
DE2154910C3 (de) 1978-06-22
ES202619U (es) 1975-11-16
IT942731B (it) 1973-04-02
GB1351661A (en) 1974-05-01
DE2154910A1 (de) 1972-05-10

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