EP0079530A2 - Dispositif à bascule verrouillable pour sièges de meubles d'assise - Google Patents

Dispositif à bascule verrouillable pour sièges de meubles d'assise Download PDF

Info

Publication number
EP0079530A2
EP0079530A2 EP82110154A EP82110154A EP0079530A2 EP 0079530 A2 EP0079530 A2 EP 0079530A2 EP 82110154 A EP82110154 A EP 82110154A EP 82110154 A EP82110154 A EP 82110154A EP 0079530 A2 EP0079530 A2 EP 0079530A2
Authority
EP
European Patent Office
Prior art keywords
slide
locking
operating lever
rocker body
rocker
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
EP82110154A
Other languages
German (de)
English (en)
Other versions
EP0079530B1 (fr
EP0079530A3 (en
Inventor
Fritz Bauer
Hans-Peter Bauer
Hans Jürgen Bauer
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.)
Suspa Compart AG
Original Assignee
Suspa Compart AG
Fritz Bauer and Sohne OHG
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 Suspa Compart AG, Fritz Bauer and Sohne OHG filed Critical Suspa Compart AG
Publication of EP0079530A2 publication Critical patent/EP0079530A2/fr
Publication of EP0079530A3 publication Critical patent/EP0079530A3/de
Application granted granted Critical
Publication of EP0079530B1 publication Critical patent/EP0079530B1/fr
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
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/03—Locking members
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/441—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with adjustable elasticity
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/443—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs

Definitions

  • the invention relates to a lockable rocker device according to the preamble of claim 1.
  • rocking devices for seating furniture, the seat part of which can be tilted forward when the locking device is released.
  • the related Field of application mainly refers to so-called secretary chairs.
  • Each of these rocking devices is only suitable for one of the chair types mentioned, ie only for one rocking direction.
  • the invention has for its object to provide a rocker of the generic type so that it can be used either for backward or forward tilting seating.
  • the main feature of the invention is that the operating lever can be inserted from two different sides in the slide arranged in the rocker body, of course in the sliding direction of the slide, so that the rocker device can be used either for one of the mentioned inclination purposes. In both cases, the operating lever is located in a position that is easily accessible to the user underneath the seat part.
  • the measures according to claim 2 ensure that the operating lever for the displacement movements is guided precisely.
  • bearing openings serve at the same time to support the operating lever when it is still supposed to perform pivoting movements, which is the case, for example, when the slide is also used to actuate a trigger pin of a gas spring which is part of a height-adjustable chair column, as is also the case with State of the art is provided.
  • the measures according to claim 3 it is achieved in a simple manner that the operating lever its pre retains its current position and is also easy to replace.
  • the measures according to claim 4 specify a particularly easy-to-use lock for the operating lever in the disc.
  • the measures according to claim 5 on the one hand, achieve simple guiding of the slide and, on the other hand, particularly reliable displaceability which lies precisely in the best possible displacement direction.
  • the measures according to claim 6 further specify how the slide is held in two end positions that can be felt by the user.
  • the measures according to claim 7 ensure that the good effect of the slider is maintained, even with swiveling movements for height adjustment of the chair.
  • the measures according to claim 8 provide a locking device which is particularly well adapted to the slide on which an operating lever can be attached from two sides.
  • the embodiment according to claim 10 makes it possible in a simple manner to also use the slider - as already mentioned - to actuate a trigger pin of a length-adjustable gas spring as part of the chair column.
  • the typewriter chair shown in FIG. 1 has a base frame 3 which is supported on rollers 1 and can be moved relative to the floor 2 and to which a height-adjustable chair column 4 is attached in the center, which consists of a guide tube 5 and a length-adjustable gas spring 6 fitted in it.
  • a length-adjustable gas spring 6 are for example from the
  • DE-PS 18 12 282 (corresponding to US-PS 3,656,593) is known.
  • the use of these gas springs together with a guide tube 5 as chair columns 4 is known, for example, from DE-PS 19 31 o12 (corresponding to US Pat. No. 3,711,054), to which reference may be made to avoid repetition.
  • a rocker device 7 which will be described in more detail below, is fastened, which in turn is fastened to the underside of a seat part 8, to which a backrest 9 is optionally attached.
  • the seat part 8 can be inclined together with the backrest 9 from a normal sitting position shown in dashed lines to a forward inclined position (shown in solid lines).
  • Such inclination or rocking options are provided for example in typewriter chairs.
  • the seat part 8 'with backrest 9' of a normal sitting position shown in broken lines can be tilted or tilted into a position inclined backwards.
  • the rocking device is arranged pivoted about the axis 1o the chair column 4 in this embodiment compared with the embodiment according to Fig. 1 to 8o 1 0 7. Otherwise, the structure is the same as in Fig. 1, so that the same reference numerals are used can and a new description is not necessary.
  • the rocking device has a base plate 11 made of sheet steel in the form of an elongated rectangle. On the two long sides of the base plate 11, webs 12 are bent vertically downwards. In the vicinity of the corners, fastening bores 13 are provided, which are used to pass fastening screws 14, by means of which the seat part 8 or 8 'is fastened to the base plate 11.
  • a pair of mutually opposite and mutually aligned bearing bores 15 are formed, in which a rocker body 17 is pivotally mounted about an axle pin 18.
  • a conical receptacle 19 is formed for the correspondingly conical upper end of the gas spring 6, so that a firm clamping connection between the rocker body 17 and the gas spring 6 can be produced.
  • a release pin 2o projects from the upper end face of the gas spring 6 to trigger a length adjustment of the gas spring.
  • the rocker body 17 is also provided with a spring abutment 21, which is laterally provided with a cup-shaped boundary wall 22 which is open at the bottom.
  • an opening 23 is formed through which a shuttle bolt is passed 24, with an upper Q uer Norwegian 25 in a trough-shaped supports 26 in the top of the base: 11 is mounted pivotally and through an opening 27 in the Base plate 11 through this and through the opening 23 of the counter camp 21 is guided.
  • the lower free end of the pendulum pin 24 is provided with a thread 28, onto which a rotary knob-like clamping nut 29 is screwed.
  • Between the clamping nut 29 and the spring abutment 21 are two nested coil springs 3 0, 31 arranged with oppositely directed winding direction.
  • rocker body 17 Since the rocker body 17 is firmly connected to the gas spring 6, it does not change its position here.
  • the maximum inclination of the base plate 11 shown in dashed lines in FIG. 3 is determined by a stop surface 33 which is formed on the rocker body 17, specifically in the region of the receptacle 19 for the gas spring 6.
  • An upwardly open recess 34 is formed in the rocker body 17, in which a slide 35 is arranged to be horizontally displaceable in the direction 36 on the axle pin 18 and to be pivoted vertically in the direction 37.
  • the slider 35 has an upper actuating tongue 38, which is in all sliding positions lungs rests along the direction of displacement 36 on the release pin 2o of the gas spring 6.
  • the disk 35 stiffened on its upper side with ribs 39 has in its central region a web wall 40 in which an elongated hole 41 is formed which extends approximately in the pivoting direction 37 and through which the axle bolt 18 is guided, the smaller diameter of which is only slightly larger, than the diameter of the axle pin 18, so that the slide 35 is guided largely without play in the sliding direction 36, but can be moved in accordance with the pivoting direction 37. So that such pivoting movements can be carried out, the slide 35 is supported at its end facing away from the actuating tongue 38 for the release pin 20 by means of a molded-on groove-shaped support 42 on the abutment 21.
  • an approximately S-shaped wire spring 43 is arranged, which is fixed with its upper end in an opening 44 adjacent to the support 42 in the slide 35.
  • This spring 43 rests with its upper bow 45 against the axle pin 18. With its lower arch 46, it bears against an associated inner wall 47 of the slide 35.
  • two recesses 48, 49 are formed at a distance from each other, into which the upper arc 45 of the spring :: 43 engages in the two end positions of the slide 35 in accordance with its sliding direction 36, whereby the slide 35 in the two End positions are releasably engaged.
  • an operating lever 5o can be attached in the manner described below.
  • openings 53 are formed in the two side walls 51, 52 of the rocker body 17, through which the essentially round-rod-shaped operating lever 5o provided with an operating handle 54 by one or the other other side can be introduced.
  • a locking bolt 56 is arranged to be displaceable in the sliding direction 36.
  • This locking bolt 56 is penetrated by a lower end portion 57 of the spring 43 which adjoins the lower arch 46 of the spring 43 and which presses the locking bolt 56 into a locking position - on the left in FIG. 3.
  • This end section 57 projects downward through corresponding recesses 58, 59 in the slide 35 or in the rocker body 17. It can thus be gripped from below and pressed while loosening the locking bolt 56 - to the right in FIG. 3.
  • the operating lever 5o is provided with a flattened area 6o at its free end and has a lower locking recess 61.
  • the flattened area 6o of the operating lever 5o can be inserted into a correspondingly adapted receptacle 62 in the holding section 55 of the slide 35 associated with the one end of the locking bolt 56, specifically - as mentioned - from both sides, i.e. through the side wall 51 or the side wall 52.
  • the end section 57 is then released, as a result of which the locking bolt 56 is pushed back into the locking position shown in FIG. 3.
  • the slide 35 is preferably made of plastic, the locking bolt 56 is accordingly made of metal.
  • a locking bolt 64 is arranged approximately vertically, the bottom of which rests on the rocker body 17.
  • the upper end face 65 of this locking bolt 64 is located in the region of an opening 66 in the base plate 11. It is the end position in which the upper arch 45 of the spring 43 corresponds to the illustration in FIG. 5 in the recess 48 is engaged. In this end position, the base plate 11 can be pivoted into the position shown in dashed lines in FIG. 3 against the force of the springs 30 , 31, 32 up to the stop surface 33.
  • the locking bolt 64 rests with its underside 67 on an adjusting bolt 68 which is arranged so as to be adjustable in its longitudinal direction in a corresponding threaded bore 69 of the rocker body 17. It has a slot 7o at its free end projecting downward from the seesaw body 17, so that an adjustment can be made by means of a screwdriver or the like.
  • a groove 71 of the adjusting bolt 68 is an O-ring 72 or the like. arranged, which serves as a self-locking anti-rotation for the adjusting bolt 68.
  • This adjusting bolt 68 can be adjusted in its axial position so that the locking bolt 64 rests practically free of play on the one hand against the base plate 11 and on the other hand against the adjusting bolt 68, so that in the locking position the base plate 11 with the seat part 8 or 8 'on the one hand does not wobble , on the other hand, a displacement of the slide 35 by means of the operating lever 5o is possible with moderate effort.
  • the locking bolt 64 is formed so long that the vertical movements of the slide 35 corresponding to the pivoting direction 37 for actuating the trigger pin 2o can be easily carried out in both horizontal end positions of the slide 35.
  • a piece of seating furniture - as shown in FIG. 2 - is to be designed to be tiltable to the rear, then the rocking device is attached to the seat part 8 'in such a way that the spring assembly is arranged towards the front.
  • the operating lever 5o is then attached as shown in solid form in FIG. 5. It then protrudes - as seen from the user sitting on the seat part 8 '- to the right hand of the user.
  • the rocking device is installed in such a way that the spring assembly lies to the rear.
  • the operating lever - as indicated by dash-dotted lines in FIG. 5 - is inserted through the opening 53 in the other side wall 52 and snapped into the disk 35 in the manner described.
  • the direction of the operating lever 5 0 that is, its operation position in this case is the same as in the case of FIG. 2. Only the operation directions for moving the slide in the direction 36 are reversed in both cases. The operating position can be reversed (Fig. 1).
  • the gas spring 6 can also be held in the receptacle 19 by means of a displaceable clamping jaw, as described in DE-OS 24 32 248 and also in DE-OS 24 28 776 (corresponding to US Pat. No. 3,995,824) .
  • Eccentric fastening according to DE-OS 28 36 666 (corresponding to US Pat. No. 4,283,033) is also possible.

Landscapes

  • Chairs Characterized By Structure (AREA)
  • Seats For Vehicles (AREA)
EP82110154A 1981-11-17 1982-11-04 Dispositif à bascule verrouillable pour sièges de meubles d'assise Expired - Lifetime EP0079530B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE3145579 1981-11-17
DE3145579 1981-11-17
DE19818133573U DE8133573U1 (de) 1981-11-17 1981-11-17 Arretierbare wippvorrichtung fuer sitzteile von sitzmoebeln
DE3235361 1982-09-24
DE19823235361 DE3235361A1 (de) 1981-11-17 1982-09-24 Arretierbare wippvorrichtung fuer sitzteile von sitzmoebeln

Publications (3)

Publication Number Publication Date
EP0079530A2 true EP0079530A2 (fr) 1983-05-25
EP0079530A3 EP0079530A3 (en) 1983-06-22
EP0079530B1 EP0079530B1 (fr) 1992-03-11

Family

ID=41057765

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110154A Expired - Lifetime EP0079530B1 (fr) 1981-11-17 1982-11-04 Dispositif à bascule verrouillable pour sièges de meubles d'assise

Country Status (6)

Country Link
US (1) US4555085A (fr)
EP (1) EP0079530B1 (fr)
JP (1) JPS58136313A (fr)
AU (1) AU561344B2 (fr)
DE (3) DE8133573U1 (fr)
ES (1) ES268513Y (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752101A (en) * 1987-06-12 1988-06-21 Allsteel Inc. Tilt control arrangement for office furniture chair
EP0298928A2 (fr) * 1987-07-09 1989-01-11 Castelli S.P.A. Chaise avec siège pivotant vers l'avant
US4852943A (en) * 1987-03-14 1989-08-01 Phr Furniture Limited Pedestal chairs
US4909472A (en) * 1987-05-20 1990-03-20 Pro-Cord S.R.L. Pivoting support for chairs, seats and the like
US5288045A (en) * 1988-06-10 1994-02-22 Herman Miller, Inc. Chair base

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Publication number Priority date Publication date Assignee Title
NO159335C (no) * 1984-05-08 1988-12-21 Haag A S Laasbar vippemekanisme for stolsete eller lignende.
US4711491A (en) * 1986-06-09 1987-12-08 Jonathan Ginat Swivel tilt mechanism for chair
US4889384A (en) * 1988-07-10 1989-12-26 Leggett & Platt, Incorporated Knee-action chair control
US4948198A (en) * 1988-10-14 1990-08-14 Leggett & Platt, Incorporated Knee-tilt chair control
US5035466A (en) * 1989-04-03 1991-07-30 Krueger International, Inc. Ergonomic chair
US5029940A (en) * 1990-01-16 1991-07-09 Westinghouse Electric Corporation Chair tilt and chair height control apparatus
JPH0415445U (fr) * 1990-05-25 1992-02-07
IT1247369B (it) * 1991-03-01 1994-12-12 Loris Miotto Dispositivo meccanico, particolarmente per la movimentazione ed il bloccaggio selettivo di una seduta
AU3647393A (en) * 1992-03-10 1993-10-05 Ashfield Engineering Company (Wexford) Limited A chair tilting mechanism
DE69334200T2 (de) 1992-06-15 2008-12-24 Herman Miller, Inc., Zeeland Rückenlehne für einen Stuhl
CH685277A5 (de) * 1992-10-08 1995-05-31 Syntech Sa Stuhlmechanik.
AU7116194A (en) * 1993-06-28 1995-01-17 Super Sagless Corporation Chair control mechanism
US5427434A (en) * 1993-07-30 1995-06-27 Leggett & Platt, Incorporated Chair tilt and height adjustment mechanism
US5464274A (en) * 1994-01-13 1995-11-07 Westinghouse Electric Corporation Chair seat tilt adjustment and locking mechanism
WO1995034233A1 (fr) * 1994-06-10 1995-12-21 Haworth, Inc. Fauteuil ergonomique
DE19517658A1 (de) * 1995-05-13 1996-11-14 Link Wilhelm Kg Stuhl, insbesondere Bürostuhl
DE29616874U1 (de) * 1996-09-27 1996-11-14 Völkle, Rolf, 72290 Loßburg Sitzmöbel, insbesondere Bürostuhl
US6139103A (en) * 1997-03-12 2000-10-31 Leggett & Platt, Inc. Synchronized chair seat and backrest tilt control mechanism
CA2246021A1 (fr) * 1997-08-29 1999-02-28 Leggett & Platt Canada Co./Societe Leggett & Platt Canada Mecanisme d'inclinaison de siege
US6378943B1 (en) 1999-03-26 2002-04-30 Northfield Metal Products Ltd. Chair tilt lock mechanisms
US6598936B1 (en) 2001-04-11 2003-07-29 Michael N. Klein Multi-task mid-pivot chair control mechanism
US6619740B2 (en) * 2001-04-30 2003-09-16 Leggett & Platt, Ltd. Chair control mechanism
US6783180B1 (en) * 2003-09-16 2004-08-31 Phillip Young Chair tilt lock mechanism
US7341233B2 (en) * 2003-09-19 2008-03-11 L & P Property Management Company Horizontal adjustment mechanism for use on a chair seat
US6957864B2 (en) * 2003-10-09 2005-10-25 Su-Ming Chen Chair with a stopping device
US7159942B2 (en) * 2004-08-26 2007-01-09 L & P Property Management Company Seat slide adjustment mechanism
US7478880B2 (en) 2005-03-08 2009-01-20 L&P Property Management Company Multi-purpose adjustment chair mechanism
US20060220431A1 (en) * 2005-03-17 2006-10-05 Kwa Ing C Chair control device
US7753447B2 (en) * 2006-10-13 2010-07-13 L&P Property Management Company Casual control tilt lockout
US8167373B2 (en) 2008-06-06 2012-05-01 Knoll, Inc. Height adjustment mechanism for a chair
CZ2011532A3 (cs) 2011-08-29 2013-03-13 Sorm@Michal Sedací zarízení s výkyvnou sedací cástí
EP3560384B1 (fr) * 2016-12-20 2023-03-29 Kokuyo Co., Ltd. Chaise
CN110022724B (zh) * 2016-12-20 2022-11-11 国誉株式会社 椅子和椅子的罩构件
JP6785644B2 (ja) * 2016-12-20 2020-11-18 コクヨ株式会社 椅子及び椅子のカバー部材
US11864661B2 (en) 2021-05-05 2024-01-09 Steelcase Inc Body support assembly and methods for the use and assembly thereof

Citations (2)

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US2797737A (en) * 1954-04-08 1957-07-02 Johnson Hinge Co Inc Lock for platform rockers
US4328943A (en) * 1979-06-11 1982-05-11 Knoll International, Inc. Control mechanism for a chair or the like

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US3065828A (en) * 1958-10-20 1962-11-27 Daniel F Caldemeyer Locking mechanism
DE1812282C3 (de) * 1968-12-03 1981-07-30 Fritz Bauer + Söhne oHG, 8503 Altdorf Hubvorrichtung zum stufenlosen Höhenverstellen von Tischplatten, Stuhlsitzen u.dgl.
CH514317A (de) * 1969-06-19 1971-10-31 Bauer Fritz Hubvorrichtung zum stufenlosen Höherverstellen einer Tragfläche, insbesondere Sitzfläche von Stühlen oder Hockern
DE2514590A1 (de) * 1974-04-09 1975-10-30 Carmet Ponte Sesto Di Rozzano Kipp-schwingvorrichtung fuer sitze, sessel u.dgl.
DE2428776C2 (de) * 1974-06-14 1983-08-04 Verin AG, Berneck Vorrichtung zur lösbaren Halterung einer längenverstellbaren Säule an einer Stuhlsitzplatte, Tischplatte o.dgl.
DE2432248A1 (de) * 1974-07-05 1976-01-22 Verin Ag Vorrichtung zur halterung einer saeule am sitzteil eines sessels
DE2748680A1 (de) * 1977-10-29 1979-05-10 Stoll Kg Christof Neigungsvorrichtung fuer sitzmoebel
DE2836666A1 (de) * 1978-08-22 1980-03-06 Suspa Federungstech Vorrichtung zur befestigung von stuhl- oder tischsaeulen an der unterseite von stuhl- oder tischplatten o.dgl.
US4438898A (en) * 1980-05-01 1984-03-27 Steelcase Inc. Chain control locking assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797737A (en) * 1954-04-08 1957-07-02 Johnson Hinge Co Inc Lock for platform rockers
US4328943A (en) * 1979-06-11 1982-05-11 Knoll International, Inc. Control mechanism for a chair or the like

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4852943A (en) * 1987-03-14 1989-08-01 Phr Furniture Limited Pedestal chairs
US4909472A (en) * 1987-05-20 1990-03-20 Pro-Cord S.R.L. Pivoting support for chairs, seats and the like
US4752101A (en) * 1987-06-12 1988-06-21 Allsteel Inc. Tilt control arrangement for office furniture chair
EP0298928A2 (fr) * 1987-07-09 1989-01-11 Castelli S.P.A. Chaise avec siège pivotant vers l'avant
EP0298928A3 (fr) * 1987-07-09 1989-08-16 Castelli S.P.A. Chaise avec siège pivotant vers l'avant
US5288045A (en) * 1988-06-10 1994-02-22 Herman Miller, Inc. Chair base

Also Published As

Publication number Publication date
DE8133573U1 (de) 1983-05-05
EP0079530B1 (fr) 1992-03-11
EP0079530A3 (en) 1983-06-22
US4555085A (en) 1985-11-26
ES268513Y (es) 1983-12-01
AU9000282A (en) 1984-05-03
DE3235361C2 (fr) 1990-10-18
DE3235361A1 (de) 1983-05-26
JPH0243481B2 (fr) 1990-09-28
DE3280393D1 (de) 1992-04-16
AU561344B2 (en) 1987-05-07
ES268513U (es) 1983-05-16
JPS58136313A (ja) 1983-08-13

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