EP0140406A2 - Sicherheitseinrichtung an einem Zeichentisch - Google Patents

Sicherheitseinrichtung an einem Zeichentisch Download PDF

Info

Publication number
EP0140406A2
EP0140406A2 EP84201253A EP84201253A EP0140406A2 EP 0140406 A2 EP0140406 A2 EP 0140406A2 EP 84201253 A EP84201253 A EP 84201253A EP 84201253 A EP84201253 A EP 84201253A EP 0140406 A2 EP0140406 A2 EP 0140406A2
Authority
EP
European Patent Office
Prior art keywords
frame
stirrup
cable
column
axle
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
EP84201253A
Other languages
English (en)
French (fr)
Other versions
EP0140406A3 (en
EP0140406B1 (de
Inventor
Alain Bruneau
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.)
Alpia SA
Original Assignee
Alpia SA
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 Alpia SA filed Critical Alpia SA
Publication of EP0140406A2 publication Critical patent/EP0140406A2/de
Publication of EP0140406A3 publication Critical patent/EP0140406A3/fr
Application granted granted Critical
Publication of EP0140406B1 publication Critical patent/EP0140406B1/de
Expired legal-status Critical Current

Links

Images

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
    • A47B27/04—Adjustable drawing-board carriers with balancing means for the board
    • A47B27/06—Adjustable drawing-board carriers with balancing means for the board balancing by means of springs
    • 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

Definitions

  • the invention relates to a fall prevention device for immobilizing a drawing table column in the event of failure of the weight balancing means of the mobile assembly supporting a work surface and sliding in a frame, the means permanent locking device which can be temporarily released by applying pressure to a pedal external to the frame when adjusting the height and towards the worktop.
  • Document No. 79 19256 describes a device for blocking and balancing a work surface of a drawing table, supported by a central column sliding in a support comprising guide means and resting on a base plate consisting by at least two brake pads diametrically opposite with respect to the geometrical axis of the sliding column, constantly pressed by mechanical means against the internal surface of said column and by a gas spring bearing at one end on the base plate, at the other end , provided with a pulley, on a cable, characterized in that a safety device is constituted by a rocker whose pivot is fixed approximately halfway up the support of the column.
  • one of the levers of the rocker being crossed by a control rod of the brake pads and carrying one of the cable hooking points, the other cable hooking point being located on the bottom of the column, the other lever of the rocker being connected to a compensating spring having its tension point fixed on said support.
  • the object of the invention is to provide a simpler safety device, therefore less expensive which meets the most stringent efficiency standards to avoid accidental fall of the board in the event of failure of the balancing means.
  • the mobile assembly - column supporting the work surface - is connected to the balancing means by a cable, stretched at one end by a spring, passing over a first deflection pulley whose axle is supported in rotation by a stirrup fixed to the base of the frame, the opening of this stirrup being oriented towards the seat of the frame, then by a second deflection pulley, with helical groove, fixed to the top of the frame, the other end of the cable being hung on the column on the opposite end to that which supports the plane of job.
  • a lock provides a connection between the axle of the first deflection pulley, movable in its stirrup, and the pedal for loosening the control of the permanent blocking means of the column so that said connection is instantly interrupted by loosening or breaking of the cable.
  • the lock is a single-piece plate formed from two parts of unequal width from a common linear base, the recess comprising one of the spring attachment points the other being on the frame, the part the narrowest, rounded at its end constituting a feeler, the widest part comprising, opposite the feeler, two superimposed recesses, one, the furthest from the linear base, in the form of a hook, receiving the rod for controlling the permanent blocking means of the column, the other, in the form of a notch aligned on the axis of symmetry of the probe, receiving a pin for connecting the lock with the pedal for controlling the loosening of said blocking means.
  • the stirrup supporting the axle of the first return pulley comprises, on its axis of symmetry, a guide located at a distance from the bottom of the stirrup less than the width of the feeler of the latch.
  • a spring hooked on the one hand to the frame on the other hand to the bolt, exerts on the bolt a traction force necessary and sufficient to maintain the rounded end of the probe between the axle of the first return pulley and the guide fixed on the caliper so that in the event of loosening or breaking of the cable, the bolt is pulled by said spring until the bolt connecting the bolt comes out of its notch ordered.
  • the device instantly stops the movement of the mobile assembly as soon as a break in the cable or another part forming the kinematic chain of balancing occurs.
  • FIG. 1 represents an overall view of a drawing table mainly composed of a frame 1, provided with a base 2, in which slides a column 3 supporting a work surface 4 by means of a fitting orientation 5.
  • Means for balancing the weight of the mobile assembly are shown in dotted lines, for the record.
  • the arrows a, b, c indicate the three orientations which can be given to the work plan 4.
  • a pedal 6 located outside the frame just above the base 2 makes it possible to release the blocking brakes of the column mobile in order to put the table in the chosen position. This locking device is described in document No.82 16328.
  • Figure 2 shows the safety device in place in the frame 1.
  • the permanent locking means of the column 3 are constituted by a brake 7 constantly applied, the release of which is controlled, by means of a plate 8 suspended by two springs 9 attached to the frame, by pressing on the pedal 6 connected to the plate 8 by two rods 10, engaged on the side of the pedal in a hook 110 of a lock 11.
  • the means for balancing the weight of the mobile assembly - column 3 and work surface 4 - consist of a spring 12 hooked to the frame by an adjustable tensioner 120 fixed on a bracket 121, on the opposite, the spring 12 is attached to the end 130 of a cable 13.
  • This cable 13 passes through the groove 140 of a first deflection pulley 14 and then into the helical groove 150 of a second deflection pulley 15 so as to catch on its other end 131 on a hook 300 fixed on the end of the column 3 opposite to that which supports the work surface 4.
  • the axle 141 of the pulley 14 rotates freely in a stirrup 16 fixed on the frame 1 near its base 2; it is only held in the bottom of the stirrup 16 only by the tension of the cable 13. In the event of said cable breaking, the axle 141 leaves the stirrup by the effect of the weight of the pulley 14 since the axis of symmetry AA of the stirrup 16 is vertical and its opening 160 is oriented towards the base 2.
  • the support 151 of the pulley 15 is fixed on the frame 1 at the point furthest from the stirrup 16 compatible with the height variation provided for positioning the worktop by sliding the column 3.
  • the stirrup 16 comprises on the axis AA a guide 162 located at a distance from the bottom 161 determined by the width of the feeler 111 of the latch 11 and less than this.
  • FIG. 3 represents the bolt 11 which provides the connection between the axle 141 of the first return pulley 14 and the pedal 6 for releasing the brake 7.
  • This lock 11 is constituted by a single-piece plate formed by two parts 111, 112, of unequal width from a common linear base 113, the recess 114 comprising one of the attachment points 115 of a spring 17, the other being on the frame 1.
  • the narrowest part 111, rounded at its free end 116, constitutes a feeler supported by the tension of the spring 17 between the guide 162 and the axle 141 of the pulley 14.
  • the widest part 112 comprises, opposite the probe 111, two recesses 110, 117 superimposed, one 110, the most distant from the linear base 113, in the form of a hook, receives one of the ends 100 of the rod 10 for controlling the permanent blocking means of the column, the brake 7, the other end 101 of the rod 10 being connected to the plate 8 for releasing said brake.
  • the other recess in the form of a notch 110 aligned on the axis of symmetry BB of the probe, receives a pin 600 fixed on the pedal 6, below the pivot points 601 thereof.
  • FIG. 4 represents the action of the latch 11 in the event of the cable 13 breaking.
  • the pulley 14 is no longer retained by the cable 13 in the stirrup 16, its axle 141 is pushed towards the opening 160 by the action of the feeler 111 pulled by the spring 17 under the guide 162.
  • the latch 11 performs its recoil in the direction of the tensile force F of the spring 17 to the point where the recess 114 meets the stirrup 16.
  • This movement of the lock 11 causes the pin 600 to come out of its notch 116 breaking the connection with the pedal 6.
  • the release of the brake 7 cannot take place and the column 3 remains blocked in its initial position without breaking of the part.

Landscapes

  • Mechanical Control Devices (AREA)
EP84201253A 1983-09-07 1984-08-30 Sicherheitseinrichtung an einem Zeichentisch Expired EP0140406B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8314564A FR2551332B1 (fr) 1983-09-07 1983-09-07 Dispositif de securite pour l'immobilisation d'une colonne de table a dessin
FR8314564 1983-09-07

Publications (3)

Publication Number Publication Date
EP0140406A2 true EP0140406A2 (de) 1985-05-08
EP0140406A3 EP0140406A3 (en) 1985-06-19
EP0140406B1 EP0140406B1 (de) 1987-05-06

Family

ID=9292171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84201253A Expired EP0140406B1 (de) 1983-09-07 1984-08-30 Sicherheitseinrichtung an einem Zeichentisch

Country Status (6)

Country Link
US (1) US4605189A (de)
EP (1) EP0140406B1 (de)
JP (1) JPS6072508A (de)
AU (1) AU559605B2 (de)
DE (1) DE3463439D1 (de)
FR (1) FR2551332B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998049921A1 (en) * 1997-05-06 1998-11-12 Sis International A/S A locking device
CN114916772A (zh) * 2022-05-27 2022-08-19 唐山师范学院 一种便捷式环境艺术设计用绘图辅助装置

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3511876A1 (de) * 1985-04-01 1986-10-02 Siemens AG, 1000 Berlin und 8000 München Medizinische, insbesondere zahnmedizinische, einrichtung
GB8513899D0 (en) * 1985-06-03 1985-07-03 Karapita A D Suspension system
US4807836A (en) * 1988-03-15 1989-02-28 Engineered Data Products, Inc. Vertical and pivotal adjusting apparatus for drafting tables
DE4031105C2 (de) * 1990-10-02 2000-03-09 High Tech Geraetebau Teleskopartig ausfahrbare Hubsäule, insbesondere zur Höhenverstellung einer Kamera
US5181620A (en) * 1991-06-04 1993-01-26 Weber-Knapp Company Counterbalance mechanism
US5572933A (en) * 1994-03-31 1996-11-12 International Material Control Systems Inc. Safety locking system for air-operated tilt tables
US5431112A (en) * 1994-03-31 1995-07-11 International Material Control Systems, Inc. Safety locking system for air-operated tilt tables
US5868079A (en) * 1996-10-16 1999-02-09 Finish Group Ltd. Stand for a monitor and a keyboard
US6382436B1 (en) * 2000-09-28 2002-05-07 Wen-Tsan Wang Display rack
DE20019107U1 (de) * 2000-11-12 2001-01-25 Leica Microsystems Ag, Heerbrugg Stativ
US7032870B2 (en) * 2000-11-28 2006-04-25 Ergotron, Inc. Methods and apparatus for generating force and torque
US6997422B2 (en) * 2002-08-21 2006-02-14 Ergotron, Inc. Stand
US7252277B2 (en) 2003-01-17 2007-08-07 Ergotron, Inc. Support arm
SG135015A1 (en) * 2003-01-29 2007-09-28 Inventio Ag Device for monitoring cables of a lift
US8925154B2 (en) 2003-05-20 2015-01-06 Ergotron, Inc. Pivot mechanism for adjusting a position of an electronic display
US20040250635A1 (en) * 2003-05-20 2004-12-16 Sweere Harry C. Lift mechanism based on torque equalization principles
US20060185563A1 (en) 2004-07-30 2006-08-24 Sweere Harry C Lift mechanism systems and methods
EP1660804A2 (de) * 2003-08-01 2006-05-31 Constant Force Technology, LLC Auf drehmomentausgleichsprinzipien basierender mechanismus
ES2582187T3 (es) 2004-12-17 2016-09-09 Steelcase Inc. Mesa de altura ajustable
US20070137535A1 (en) * 2005-12-16 2007-06-21 Steelcase Development Corporation Load compensator for height adjustable table
US8228668B2 (en) 2006-07-26 2012-07-24 Ergotron, Inc. Balanced moment lift system and method
WO2013148352A1 (en) 2012-03-30 2013-10-03 Ergotron, Inc. Counterbalancing lift mechanisms and methods
KR101535672B1 (ko) * 2012-05-01 2015-07-22 남광욱 발판을 구비한 클램핑 장치
US20130306412A1 (en) * 2012-05-16 2013-11-21 Suspa Gmbh Safety release
KR101633599B1 (ko) * 2014-12-29 2016-06-30 남광욱 다리의 길이 조절장치
TWM502129U (zh) * 2015-02-16 2015-06-01 Ming-Hsien Huang 升降裝置
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
CN106671653B (zh) * 2016-12-30 2018-05-18 苏州市测绘院有限责任公司 一种绘图用绘图板
CN112178396B (zh) * 2020-10-21 2022-07-22 上海森克电子科技有限公司 一种智能广告机底座对接机构

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2404949A (en) * 1942-09-17 1946-07-30 William H Murphy Adjustable drafting stand
US3096059A (en) * 1961-03-22 1963-07-02 F And F Koenigkramer Company Telescoping means having indexing, braking and interlocking means
DE1180103B (de) * 1963-04-27 1964-10-22 Clemens Riefler Federausgleich fuer das Gewicht eines hoehen-verstellbaren Gegenstandes, z. B. eines Zeichenbrettes
US3213809A (en) * 1964-01-13 1965-10-26 Mayline Co Adjustable table and brake mechanism therefor
US3358620A (en) * 1965-08-24 1967-12-19 Parigi Paolo Drawing board or work table with raisable and inclinable working surface
US3370556A (en) * 1966-10-25 1968-02-27 Keuffel & Esser Co Mechanical counterbalance system
FR1531447A (fr) * 1967-04-11 1968-07-05 Table à dessiner
DE2332225C3 (de) * 1973-06-25 1979-02-01 Franz Kuhlmann Kg, Praezisionsmechanik Und Maschinenbau, 2940 Wilhelmshaven Sicherungssperre für die Schwenkbewegung eines Zeichenbrettes
FR2351625A1 (fr) * 1976-05-21 1977-12-16 Oldor Sa Perfectionnements aux tables a dessin actionnees par des mecanismes de soulevement, de blocage, d'abaissement et de reglage de l'inclinaison du plateau
DE2646486C2 (de) * 1976-10-14 1978-07-20 Franz Kuhlmann Kg, Praezisionsmechanik Und Maschinenbau, 2940 Wilhelmshaven Säulenzeichentisch mit Gewichtsausgleich durch eine Gasfeder
PL106770B1 (pl) * 1978-06-13 1980-01-31 Spoldzielnia Pracy Skala Wytwo Uklad blokady awaryjnej ramowego stolu kreslarskiego z wywazeniem sprezynowym
FR2462125A2 (fr) * 1979-07-26 1981-02-13 Jeandal Dispositif de blocage d'un plan de travail d'une table a dessiner
DE3003119C2 (de) * 1979-02-12 1986-11-27 Société Jeandal, Besancon Vorrichtung zur Blockierung der Arbeitsfläche eines Zeichentisches
FR2533122B1 (fr) * 1982-09-22 1986-08-29 Alpia Sa Dispositif de blocage d'une table a dessin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998049921A1 (en) * 1997-05-06 1998-11-12 Sis International A/S A locking device
CN114916772A (zh) * 2022-05-27 2022-08-19 唐山师范学院 一种便捷式环境艺术设计用绘图辅助装置

Also Published As

Publication number Publication date
EP0140406A3 (en) 1985-06-19
AU3227284A (en) 1985-05-30
US4605189A (en) 1986-08-12
FR2551332B1 (fr) 1987-04-17
JPH02922B2 (de) 1990-01-09
FR2551332A1 (fr) 1985-03-08
DE3463439D1 (en) 1987-06-11
AU559605B2 (en) 1987-03-12
JPS6072508A (ja) 1985-04-24
EP0140406B1 (de) 1987-05-06

Similar Documents

Publication Publication Date Title
EP0140406B1 (de) Sicherheitseinrichtung an einem Zeichentisch
EP3154643B1 (de) Vorrichtung zur aufhängung einer last an einem seil
EP0561682A1 (de) Sicherheitsvorrichtung für Arbeiter auf erhöhten Arbeitsplätzen
FR2659861A1 (fr) Dispositif support destine a recevoir un haltere muni de poids et pouvant etre manipule librement.
FR2758844A1 (fr) Appareil pour la mise en place de plaques de plafond
CH664891A5 (fr) Sangle de levage et appareil de levage pour invalide muni de ladite sangle.
WO2019110812A1 (fr) Système de rappel pour crochet de charge et dispositif d'accrochage comportant un tel système
FR2715965A1 (fr) Dispositif de sécurité contre la chute, en particulier pour portes basculantes.
CH626258A5 (de)
BE511977A (de)
EP0106388B1 (de) Klemmvorrichtung an einem Zeichentisch
FR2951952A1 (fr) Dispositif de securite pour grimpeur
BE626706A (de)
EP0081108A2 (de) Vorrichtung zum auf Abstand Anbringen eines Bandes um ein Aufhängungsteil
FR2653639A1 (fr) Dispositif adaptable aux cannes a peche pour ferrage automatique.
FR2796344A1 (fr) Mecanisme d'ancrage et d'articulation, notamment pour un siege arriere d'un vehicule automobile
FR2704661A1 (fr) Dispositif de réglage de la position angulaire relative d'au moins deux pièces articulées entre elles selon un axe.
FR2621295A1 (fr) Dispositif d'accrochage automatique en position haute de la tete d'une voile d'un bateau a voile sur le mat de celui-ci
FR2580902A1 (fr) Dispositif d'accrochage, notamment pour la suspension de quartiers de viande.
FR2462125A2 (fr) Dispositif de blocage d'un plan de travail d'une table a dessiner
FR2831619A1 (fr) Systeme de crochet largable
FR2637505A1 (fr) Tendeur de longes pour ceintures de travail sur des poteaux
FR2790968A1 (fr) Bloqueur reglable pour la remontee le long d'une corde
CH284520A (fr) Tourelle porte-outils.
EP0773181A1 (de) Antifall-Sicherheitseinrichtung für einen beweglichen Körper

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI NL

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19850701

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI NL

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 3463439

Country of ref document: DE

Date of ref document: 19870611

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19900625

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19900629

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900803

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19900827

Year of fee payment: 7

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19900831

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19910830

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19910831

Ref country code: CH

Effective date: 19910831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920301

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST