EP0256975A1 - Dispositif d'accouplement d'un véhicule pour transmettre une force de traction ou de poussée sur un autre véhicule - Google Patents

Dispositif d'accouplement d'un véhicule pour transmettre une force de traction ou de poussée sur un autre véhicule Download PDF

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Publication number
EP0256975A1
EP0256975A1 EP87810394A EP87810394A EP0256975A1 EP 0256975 A1 EP0256975 A1 EP 0256975A1 EP 87810394 A EP87810394 A EP 87810394A EP 87810394 A EP87810394 A EP 87810394A EP 0256975 A1 EP0256975 A1 EP 0256975A1
Authority
EP
European Patent Office
Prior art keywords
vehicle
coupling
chassis
locomotive
coupling device
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
EP87810394A
Other languages
German (de)
English (en)
Other versions
EP0256975B1 (fr
Inventor
Peter Bolli
Heinz Looser
Werner Tanner
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.)
Lego AS
Original Assignee
Interlego AG
Lego AS
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 Interlego AG, Lego AS filed Critical Interlego AG
Priority to AT87810394T priority Critical patent/ATE55553T1/de
Publication of EP0256975A1 publication Critical patent/EP0256975A1/fr
Application granted granted Critical
Publication of EP0256975B1 publication Critical patent/EP0256975B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H18/00—Highways or trackways for toys; Propulsion by special interaction between vehicle and track
    • A63H18/02—Construction or arrangement of the trackway
    • A63H18/04—Up-and-down-hill trackways
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H19/00—Model railways
    • A63H19/02—Locomotives; Motor coaches
    • A63H19/10—Locomotives; Motor coaches electrically driven
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H18/00—Highways or trackways for toys; Propulsion by special interaction between vehicle and track
    • A63H18/02—Construction or arrangement of the trackway
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H18/00—Highways or trackways for toys; Propulsion by special interaction between vehicle and track
    • A63H18/08—Highways or trackways for toys; Propulsion by special interaction between vehicle and track with mechanical means for guiding or steering
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H19/00—Model railways
    • A63H19/30—Permanent way; Rails; Rail-joint connections
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H21/00—Other toy railways
    • A63H21/04—Mono-railways, e.g. with vehicles embracing the rail in the form of a saddle

Definitions

  • the invention relates to a coupling device on a vehicle intended for locomotion on a road, in particular on a traction vehicle, for transmitting a tractive or impact force to another vehicle, at least the first-mentioned vehicle being provided with a coupling bracket which has at least one arm , the free end of which is pivotally attached to the vehicle in the vertical direction of the vehicle.
  • Coupling devices of this type in particular with two-armed coupling brackets, have been known for a long time. It turns out, however, that under adverse road conditions or with an unfavorable ratio of the weight of the traction vehicle to the weight of the coupled, non-driven vehicle, one or the other vehicle lifts off the road with the result of derailment on profiled roads or tipping over of one or the other Vehicle are not inevitable in every case on roughly smooth roads.
  • the object of the invention is therefore to provide a coupling device of the type mentioned, which enables safe operation of a traction vehicle with a coupled trailer vehicle in pulling or pushing operation on virtually any carriageway without interference, as long as the locomotive ensures locomotion on the carriageway by means of adhesion or gear drive is.
  • the coupling device for achieving this object has the features stated in the characterizing part of patent claim 1.
  • the coupling device largely prevents the vehicles from being pushed out of the roadway between the locomotive and at least one further non-driven vehicle connected to it, even on extremely uneven roadways and on steep gradients and in tight bends, by providing the force that is decisive for locomotion every vehicle at a point as close as possible to the driving surface of the road and near the center of gravity of the vehicle or chassis of the vehicle in question
  • FIG. 1 to 3 for example, an embodiment of a toy cogwheel train is shown, these figures showing a partial side view, top view and bottom view of a train built from building blocks in the manner of a railcar train.
  • the train shown has three cars, namely a head or control car 1, an intermediate car 2 and a trailer 3.
  • the head car 1 is connected to the intermediate car 2 via a chassis 4 coupled on both sides, and the intermediate car 2 connected to the end car 3 via a chassis 5 coupled on both sides.
  • the end carriage 1 and the end carriage 3 are also provided with a bogie in their outer end regions, not shown. 1 to 3, the outer panels of the carriages 1 to 3 and the chassis 4 and 5 are not shown, with off Assumption of the head carriage 1, in which a suitable, composed of individual components car trim 8 is indicated.
  • each car 1 to 3 has a platform serving as a car chassis 9, 10 and 11, via which platform the cars 1, 2 and 3 are also coupled to the chassis 4 and 5, as will be explained below.
  • the platforms 9, 10 and 11 are provided with coupling pins 12 in a manner known per se (FIG. 2).
  • the platforms 9, 10 and 11 are designed as hollow bodies which are reinforced by struts 13 (FIG. 3).
  • the chassis 4 and 5 are made in one piece from a plastic in the present embodiment, apart from wheel axles and coupling or fastening elements.
  • 3 has a substantially hollow underside, which has molded-on bearing parts 14 for receiving rotatable wheel axles 15, each of which is provided with two pressed-on, rotatable wheels 16 with a smooth running surface .
  • the chassis 5 has walls 21 and 22 which are opposed in pairs and extend essentially in the longitudinal direction. The walls 21 and 22 serve as guide walls of the chassis 5 on a smooth track provided with a central rack, the rack coming to rest in the space between two opposing walls 21 and 22 when the train shown is placed on such a track.
  • the chassis 5 On the upper side, the chassis 5 is provided on both sides with an attached, pivotable coupling bracket 23 or 24, which is pivotable in the vertical direction about lateral pins 25.
  • the coupling brackets 23 and 24 are intended to receive corresponding coupling elements at the adjacent ends of the platforms 10 and 11, respectively. This coupling device will be explained later in detail with reference to FIGS. 4 to 9.
  • the chassis On its upper side, the chassis is also provided with a few coupling pins 12 which, like the platforms 9, 10 and 11, permit the attachment of structures such as cladding.
  • the chassis 4, as far as its underside is concerned (FIG. 3), is basically of the same design as the chassis 5 and accordingly has the same clamping tabs 14, wheel axles 15, wheels 16 and guide walls 21 and 22, respectively.
  • an essentially cylindrical electric motor 26 is attached in a vertical position on its upper side (FIGS. 1 and 2).
  • the electric motor 26 has a likewise vertical drive axis 27 (FIG. 3) which carries a gear wheel 28.
  • the gearwheel 28 is accordingly located on the underside of the chassis 4 in the region of the one guide wall 22, its axis lying to the side of the longitudinal center line of the chassis 4.
  • the gear 28, which is preferably driven by the electric motor 26 via a gear built into the electric motor, is intended to come into engagement with a side toothing of a toothed rack toothed on both sides, which, as already mentioned, is arranged centrally on the smooth roadway, in order to engage the chassis 4 and thus the whole train of FIGS. 1 to 3 Excitation of the electric motor 26 to move along the road.
  • the electric motor 26 is supplied via a plug 29 (FIG. 1) designed as a module and a supply cable 30 through a battery box (not shown) arranged on the head carriage 1.
  • a slide 32 is arranged in the chassis 4 near the underside of the electric motor 26.
  • the slide 32 is provided with switching contacts and can be brought from the illustrated "off" position (motor separated from the battery) by pressing in one or the other transverse direction into a circuit for forward or backward travel of the chassis 4 or the train .
  • the slide 32 protrudes laterally beyond the chassis 4 and has bevelled surfaces at the ends. This allows actuating elements such as pins and the like to be arranged on the carriageway, which act on the slider 32 when the train passes through and thus cause the train to stop or change direction.
  • the chassis 4 is provided with two coupling brackets 23 and 24 mounted in lateral pins 25 in order to releasably connect the chassis 4 to the platform 9 of the head carriage 1 and to the platform 10 of the intermediate carriage 2.
  • the electric motor 26 is also provided with a few coupling pins 12 for fitting cladding or the like.
  • the coupling bracket 23 belonging to the bogie 5 is shown in perspective in FIG. 4, in a top view in FIG. 5 and in a section in FIG. 6.
  • the coupling bracket 23 has two angled arms 65 which are provided with a clamping slot 66 at their ends. With this clamping slot 66, each arm 65 of the coupling bracket 23 can be applied to one of the pins 25 formed laterally on the chassis 5, as shown in FIG. 1.
  • the coupling bracket 23 has a slot 68, the upper and lower slot walls being provided with a small, groove-like recess 69 in the inner part of the slot 68.
  • the slot 68 of the coupling bracket 23 serves to receive a corresponding coupling tongue, which are attached to the ends of the platforms 9, 10 and 11. 7 to 9, the platform 10 of the intermediate car 2 (FIG. 1) is shown in detail, but on a larger scale.
  • the platform 10 is provided with an integrally formed tongue 70 and 71 on each end face.
  • the tongues 70, 71 each have an upper and lower locking button 72 at their outer ends.
  • the tongue 70 at one end of the platform 10 of the intermediate carriage 2 has a different cross-sectional shape than the tongue 71 at the other end of the platform 10.
  • the tongue 70 (FIG. 8) has a rectangular cross-section, while the cross-sectional shape of the tongue 71 (FIG. 9) is similar to the shape of a rhombus.
  • the tongue 70 (rectangle) in the slot 68 of the coupling bracket 23, 24 causes a connection which is rigid with respect to the direction of rotation about the longitudinal axis of the platform 10, since the tongue 70 lies against the upper and lower wall of the slot 68.
  • the tongue 71 (rhombus) allows a slight swiveling back and forth in slot 68.
  • the driven undercarriage 4 corresponds to the applied electric motor 26 (FIG. 1), so that in the driven undercarriage 4 of FIG. 1, the design and arrangement of the coupling bracket 23 or 24 is the same as in the undercarriage 5.
  • the present rack and pinion track has a very high level of stability, even if the track is on steep inclines and tight curves without suitable support pillars (ie "freely suspended”) ") is misplaced.
  • a slope limit is essentially only reached when the vertical plane passing through the center of gravity of a chassis intersects the contact points of the wheels on the affected wheel axle on the road. This corresponds to an incline of the road of significantly more than 100% in the present cog railway.
  • the advantages mentioned exist regardless of whether the traction vehicle pulls or pushes other coupled vehicles.
  • the locomotive may be a single locomotive which, with reference to FIG. 1, would consist of a powered undercarriage 4 and a carriage 1 with a running bogie coupled by means of a coupling bracket 23, further carriage casings (not shown) and the coupling bracket being arranged 24 could be omitted at the outer end of the chassis 4.
  • FIGS. 10 to 12 Another embodiment of the coupling device according to the invention is explained with reference to FIGS. 10 to 12.
  • This relates to a driven undercarriage 87 of an electric locomotive of a toy rack railway, which has coupling devices 89 and 102 connected to the undercarriage 87.
  • the locomotive is again intended for a carriageway which has a smooth driving surface 90 and a toothed rack 91 which is arranged in the center of the carriageway and has toothing on both sides.
  • the exemplary embodiment in FIG. 10 is characterized in that the chassis 87 is formed by stacking several components. In the illustration in FIG. 10, wheels attached to axles 95 are omitted for the sake of clarity.
  • the driven chassis 87 is composed of the following components: - A guide and basic component 93, which extends over the entire length of the chassis 87, and which is designed on the one hand as a base for the construction of further components and on the other hand as a sliding guide element of the chassis 87 along the rack 91; - Two bearing plates 94 mounted on the guide component 93, which have openings for receiving a wheel axle 95, on which two wheels 96 (only the rear wheel 96 is visible in FIG.
  • the connecting bracket 102 has two arms 113, which are provided at their ends with a clamping slot 114, such that the arms 113 can be plugged onto the inner bearing journals 111c (FIG. 10).
  • the yoke part of the connecting bracket 102 has a slot-like opening 115, in which a pin 116 is formed.
  • the connecting bracket 102 serves to pivotally connect the chassis 87 to a platform of the locomotive by the pin 116 being able to be snapped into a corresponding horizontal clamping lug on the platform.
  • a downward pivoting movement of the connecting bracket 102 is limited by the fact that its arms 113 abut the adjacent projections 112 of the guide component 93 (FIG. 10).
  • the coupling bracket 103 of the coupling device 89 articulated on the guide component 93 is shown in FIG. 12.
  • the coupling bracket 103 also has two arms 117 and 118, each of which is provided with a hole 119 in its end regions.
  • the coupling bracket 103 can be plugged onto the outer bearing journals 111a, a downward pivoting movement of the coupling bracket 103 being restricted by the fact that extensions 120 of the arms 117, 118 on the adjacent projections 112 of the guide component 93.
  • the yoke part of the coupling bracket 103 also has a slot-like opening 121, in which a pin 122 is formed.
  • the opening 121 and the pin 122 serve to receive a clamping tab 123 of a further two-armed bracket 124, the two arms 125 of which each have a hole 126.
  • a magnet holder 127 which comprises a permanent magnet 128, is provided with two bearing pins 129 which fit into the holes 126. In the assembled state (FIG. 10), the magnet holder 127 can therefore rotate between the arms 125 of the bracket 124.
  • the permanent magnets 128 of similar coupling devices 89 of two abutting vehicles can rotate such that the north pole of one magnet faces the south pole of the other magnet, so that a magnetic coupling of the two vehicles then takes place.
  • the drive unit 97 is placed on the bearing plates 94 as a further component.
  • the two retaining brackets 101 (FIG. 10) are present, which are plugged into corresponding coupling pins of the longitudinal plate parts 98 of the drive unit 97 and which have clamping slots provided on their arms in the remaining bearing pins 111b and 111d of the guide component 93 are engaged.
  • the force-transmitting elements namely the connecting bracket 102 and the coupling bracket 103 in the bearing pins 111c and 111a are articulated very close to the running surfaces 90 and close to the center of gravity on the chassis 87, so that the stability of the locomotive provided with the chassis 87 and the other vehicles attached to it on the carriageway is also guaranteed in this embodiment up to the natural tipping limit.
  • the coupling device according to the invention has previously been explained with the aid of a toy cogwheel train, because in such a situation the problems of an operation disturbed by lifting the vehicles off the road are particularly acute.
  • the present coupling device can also be used with advantage in other vehicles, in particular also in road vehicles, that is to say for example between a truck and a trailer, between a tractor and an attached machine vehicle or between an automobile and a caravan, etc.
  • the coupling bracket provided according to the invention is designed and arranged in a manner analogous to that of the toy rack railway described. Accordingly, the two arms of the coupling bracket (or the arm of the coupling bracket if only one arm is provided) on the towing vehicle are firstly as deep as possible, taking into account the required ground clearance, i.e. as close as possible to the tread of the driven wheels of the towing vehicle on the ground, and secondly articulated as close as possible to the plane perpendicular to the road, which contains the center of gravity of the driven chassis of the towing vehicle.
  • Such a construction and arrangement of the coupling device which is entirely feasible in terms of design is in contrast to known arrangements, but is capable of ensuring safe locomotion of the towing vehicle and of the trailer vehicle coupled to it in many positions extreme with respect to the road surface, both in normal train operation and in push operation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Toys (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Noodles (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
EP87810394A 1986-07-21 1987-07-13 Dispositif d'accouplement d'un véhicule pour transmettre une force de traction ou de poussée sur un autre véhicule Expired - Lifetime EP0256975B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87810394T ATE55553T1 (de) 1986-07-21 1987-07-13 Kupplungsvorrichtung an einem fahrzeug zur uebertragung einer zug- oder stosskraft auf ein weiteres fahrzeug.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH290186 1986-07-21
CH2901/86 1986-07-21

Publications (2)

Publication Number Publication Date
EP0256975A1 true EP0256975A1 (fr) 1988-02-24
EP0256975B1 EP0256975B1 (fr) 1990-08-16

Family

ID=4244160

Family Applications (2)

Application Number Title Priority Date Filing Date
EP87810393A Expired - Lifetime EP0254679B1 (fr) 1986-07-21 1987-07-13 Jouet sur circuit à crémaillère
EP87810394A Expired - Lifetime EP0256975B1 (fr) 1986-07-21 1987-07-13 Dispositif d'accouplement d'un véhicule pour transmettre une force de traction ou de poussée sur un autre véhicule

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP87810393A Expired - Lifetime EP0254679B1 (fr) 1986-07-21 1987-07-13 Jouet sur circuit à crémaillère

Country Status (37)

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US (1) US4861306A (fr)
EP (2) EP0254679B1 (fr)
JP (1) JPH0761382B2 (fr)
KR (1) KR970000430B1 (fr)
CN (1) CN1025288C (fr)
AR (1) AR242503A1 (fr)
AT (2) ATE55553T1 (fr)
AU (1) AU591789B2 (fr)
BG (1) BG48564A3 (fr)
BR (1) BR8703762A (fr)
CA (1) CA1285768C (fr)
CZ (1) CZ282241B6 (fr)
DD (1) DD263920A5 (fr)
DE (2) DE3766563D1 (fr)
DK (1) DK168787B1 (fr)
EG (1) EG18152A (fr)
ES (1) ES2018850B3 (fr)
FI (1) FI90498C (fr)
GR (1) GR3002543T3 (fr)
HU (1) HU210010B (fr)
IE (1) IE59936B1 (fr)
IL (1) IL83246A (fr)
IN (1) IN167958B (fr)
LT (1) LT3742B (fr)
LV (1) LV10588B (fr)
MA (1) MA21038A1 (fr)
MX (1) MX168304B (fr)
MY (1) MY100942A (fr)
NO (1) NO171350C (fr)
NZ (1) NZ221088A (fr)
PL (1) PL154386B1 (fr)
PT (1) PT85366B (fr)
RU (1) RU1801023C (fr)
SK (1) SK279359B6 (fr)
TN (1) TNSN87093A1 (fr)
TR (1) TR23282A (fr)
ZA (1) ZA875153B (fr)

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US5993283A (en) * 1997-09-30 1999-11-30 Parvia Corporation Modular buildings for a toy building set
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DK137697A (da) * 1997-11-28 1999-05-29 Lego As Legetøjssæt omfattende et køretøj og skinneelementer samt et køretøj til et sådant legetøjssæt
DK175561B1 (da) * 1999-01-11 2004-12-06 Lego As Legetöjsbyggesæt med system til overföring af energi mellem byggeelementer
DK174581B1 (da) * 1999-11-17 2003-06-30 Lego As Et legetøjsbyggesæt
US6572434B2 (en) * 2001-07-19 2003-06-03 Echo Toys Ltd. Roller coaster toy
DK200101487A (da) * 2001-10-09 2003-04-10 Lego As Legetøjsfartøj omfattende fleksible elementer
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EP1561499A3 (fr) * 2004-02-06 2005-09-21 Plast Wood s.r.l. structure télécommandée pour figure mobile constituée d'éléments magnetiques, ferromagnetiques ou plastiques
US20060005735A1 (en) * 2004-07-07 2006-01-12 Industrial Design Laboratories Inc. Electromagnetic moving toy system
US20080011184A1 (en) * 2006-05-02 2008-01-17 Industrial Design Laboratories Inc. Switching electromagnetic moving system
US20070283841A1 (en) * 2006-05-18 2007-12-13 Industrial Design Laboratories Inc. Energy converting system
US20080166926A1 (en) * 2007-01-06 2008-07-10 Arthur Seymour Stackable electonic blocks and a method for stacking the same
US7623013B2 (en) * 2007-03-28 2009-11-24 Industrial Design Laboratories, Inc Electromagnetic moving system
CN101229443B (zh) * 2008-02-05 2012-02-01 广东奥飞动漫文化股份有限公司 一种玩具飞车及其轨道
KR101239956B1 (ko) * 2008-06-27 2013-03-06 삼성전자주식회사 스캐너용 이동유닛, 이를 포함하는 스캐너 및 화상형성장치
US8597069B2 (en) * 2010-10-08 2013-12-03 K'nex Limited Partnership Group Toy race track system
US9114324B2 (en) 2012-04-12 2015-08-25 Mattel, Inc. Toy vehicle monorail track set
KR200477073Y1 (ko) * 2013-03-07 2015-05-04 겟 모어 컴퍼니 리미티드 전기 접속 빌딩 블록의 접촉 유형
PL3127588T3 (pl) 2014-03-31 2020-03-31 Artec Co., Ltd. Blok montażowy z serwomotorem i zestaw bloku montażowego
JP6219869B2 (ja) * 2015-03-25 2017-10-25 株式会社ベンカン 組立玩具
US10195537B2 (en) * 2016-02-01 2019-02-05 Streamline Design, Llc Multi-configurable toy race track
RU208064U1 (ru) * 2021-08-24 2021-12-01 Александр Александрович Прилепский Вагон игрушечной железной дороги

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Also Published As

Publication number Publication date
MY100942A (en) 1991-05-31
RU1801023C (ru) 1993-03-07
IE59936B1 (en) 1994-05-04
ZA875153B (en) 1988-01-19
AU7562787A (en) 1988-01-28
EG18152A (en) 1992-08-30
NO873012L (no) 1988-01-22
NZ221088A (en) 1989-04-26
SK550787A3 (en) 1998-10-07
FI90498B (fi) 1993-11-15
DE3764333D1 (de) 1990-09-20
AU591789B2 (en) 1989-12-14
IE871870L (en) 1988-01-21
CA1285768C (fr) 1991-07-09
JPS6392375A (ja) 1988-04-22
IN167958B (fr) 1991-01-12
LT3742B (en) 1996-03-25
IL83246A (en) 1990-12-23
LV10588A (lv) 1995-04-20
TNSN87093A1 (fr) 1990-01-01
ATE58845T1 (de) 1990-12-15
GR3002543T3 (en) 1993-01-25
ATE55553T1 (de) 1990-09-15
DE3766563D1 (de) 1991-01-17
DK376487D0 (da) 1987-07-20
BR8703762A (pt) 1988-03-29
BG48564A3 (en) 1991-03-15
NO873012D0 (no) 1987-07-20
PT85366A (pt) 1988-07-29
DD263920A5 (de) 1989-01-18
DK376487A (da) 1988-01-22
US4861306A (en) 1989-08-29
AR242503A1 (es) 1993-04-30
JPH0761382B2 (ja) 1995-07-05
DK168787B1 (da) 1994-06-13
PL266940A1 (en) 1988-06-23
PL154386B1 (en) 1991-08-30
CZ282241B6 (cs) 1997-06-11
LV10588B (en) 1995-08-20
MA21038A1 (fr) 1988-04-01
ES2018850B3 (es) 1991-05-16
KR970000430B1 (ko) 1997-01-11
TR23282A (tr) 1989-08-28
PT85366B (pt) 1993-07-30
EP0254679A1 (fr) 1988-01-27
NO171350C (no) 1993-03-03
SK279359B6 (sk) 1998-10-07
CN1025288C (zh) 1994-07-06
EP0254679B1 (fr) 1990-12-05
EP0256975B1 (fr) 1990-08-16
FI873046A0 (fi) 1987-07-09
FI90498C (fi) 1994-02-25
LTIP1675A (en) 1995-07-25
HUT63964A (en) 1993-11-29
MX168304B (es) 1993-05-17
CZ550787A3 (en) 1997-03-12
IL83246A0 (en) 1987-12-31
HU210010B (en) 1995-01-30
NO171350B (no) 1992-11-23
KR880001318A (ko) 1988-04-22
CN87105676A (zh) 1988-06-01
FI873046A (fi) 1988-01-22

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