FR2664006A3 - SPRING PACK. - Google Patents

SPRING PACK. Download PDF

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Publication number
FR2664006A3
FR2664006A3 FR9107880A FR9107880A FR2664006A3 FR 2664006 A3 FR2664006 A3 FR 2664006A3 FR 9107880 A FR9107880 A FR 9107880A FR 9107880 A FR9107880 A FR 9107880A FR 2664006 A3 FR2664006 A3 FR 2664006A3
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FR
France
Prior art keywords
spring
lining
leaf
master
linings
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
FR9107880A
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French (fr)
Other versions
FR2664006B3 (en
Inventor
Rieder Werner
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.)
Jenbacher Transportsysteme AG
Original Assignee
Jenbacher Transportsysteme AG
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 Jenbacher Transportsysteme AG filed Critical Jenbacher Transportsysteme AG
Publication of FR2664006A3 publication Critical patent/FR2664006A3/en
Application granted granted Critical
Publication of FR2664006B3 publication Critical patent/FR2664006B3/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/02Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/18Leaf springs
    • F16F1/20Leaf springs with layers, e.g. anti-friction layers, or with rollers between the leaves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/02Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
    • B60G11/10Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • B60G11/113Mountings on the axle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10Type of spring
    • B60G2202/11Leaf spring
    • B60G2202/112Leaf spring longitudinally arranged
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00Indexing codes relating to the regulated action or device
    • B60G2500/20Spring action or springs

Abstract

A spring assembly consists of a plurality of metal spring leaves (1, 2) held together by a spring shackle (3). A main leaf (1) with eyes (4) is secured to the chassis of a vehicle. The main leaf (1) is insulated against oscillation from the shackle (3) either alone or with other spring leaves (2) by elastic inserts (7).

Description

Bloc-ressort
La présente invention concerne un bloc-ressort formé de plusieurs lames de ressort métalliques reunies à l'aide d'un étrier de ressorts, une lame de ressort maîtresse pourvue d'yeux étant reliée au chassies d'un véhicule, notamment d'un véhicule sur rails.
Spring block
The present invention relates to a spring unit formed by several metal spring blades joined together by means of a spring clip, a master spring leaf provided with eyes being connected to the casings of a vehicle, in particular of a vehicle. on rails.

Des blocs-ressorts de ce type sont utilisés en particulier dans des wagons de chemin de fer, mais egalement dans des véhicules routiers. Spring blocks of this type are used in particular in railway wagons, but also in road vehicles.

L'invention a pour but de réduire les bruits émis par le véhicule lors de son déplacement.  The invention aims to reduce the noise emitted by the vehicle during its movement.

L'invention est basée sur le principe selon lequel une grande partie des bruits sont produits entre les roues et la voie, par exemple les rails, et ces bruits sont transmis à la caisse par la suspension des roues. The invention is based on the principle that a large part of the noise is produced between the wheels and the track, for example the rails, and this noise is transmitted to the body by the suspension of the wheels.

te but visé par l'invention est atteint grâce au fait que la lame de ressort métallique maîtresse, seule ou avec d'autres lames de ressort, est isolée de l'étrier de ressorts, en ce qui concerne les vibrations, à l'aide de garnitures élastiques. The object of the invention is achieved by virtue of the fact that the master metal spring leaf, alone or with other spring leaves, is isolated from the spring caliper, with regard to vibrations, using elastic pads.

Des garnitures en élastomère sont connues en soi, dans e cas de lames de ressort individuelles non métalliques qui se composent en particulier de matière plastique renforcée par fibre de verre. Cependant, dans le Cas de lames de ressorts en matiere plastique de ce type, utilisée principalement dans des véhicules automobiles, le problème de la transmission des bruits se pose sensiblement moins que pour les blocsressorts métal I iques uti 1 ises habituel lement dans les véhicules de chemin de fer.Au contraire, les garnitures en élastomère servent, dans le cas de lames de ressorts en matière plastique, à éviter les pointes de tension et, ainsi, a augmenter la durée de vie. Elastomeric linings are known per se, in the case of individual non-metallic spring blades which are in particular made of glass fiber reinforced plastic. However, in the case of plastic spring blades of this type, used mainly in motor vehicles, the problem of noise transmission arises significantly less than for the metal spring blocks usually used in vehicles. On the contrary, the elastomer linings are used, in the case of plastic spring blades, to avoid tension peaks and, thus, to increase the service life.

L'invention part d'un autre type de blocs-ressorts, les blocs- ressorts comportant plusieurs lames de ressort métalliques, tels qu'ils sont utilisés principalement dans les véhicules de chemin de fer, et utilise des garnitures élastiques formées de prérêrence de couches d'élastomère, en vue de réduire sensiblement la transmission des ondes sonores de la suspension de roues à la caisse. II est essentiel, pour l'invention, qu'au moins la lame de ressort maîtresse, accrochée directement au chassis ou à la caisse, soit complètement isolée de l'étrier de ressorts sur lequel la boîte d'essieu est fixée. The invention starts from another type of spring blocks, the spring blocks comprising several metal spring blades, as they are used mainly in railway vehicles, and uses elastic linings formed preferably of layers. elastomer, to significantly reduce the transmission of sound waves from the wheel suspension to the body. It is essential, for the invention, that at least the master leaf spring, attached directly to the chassis or to the body, be completely isolated from the spring bracket on which the axle box is fixed.

Pour les modèles de ressorts dans lesquels les lames de ressort ne sont pas adjacentes sur toute leur longueur (par exemple les ressorts en parabole), de préférence trois garnitures sont disposées au-dessous de la lame de ressort ma.tresse, une au milieu et dev aux extremites de la lame de ressort maîtresse. Toutes les lames de ressort qui s'étendent jusqu aux yeux sont isolées par rapport aux lames de ressort plus courtes D'une maniere avantageuse, la raideur propre des garnitures int-erieures est par ailleurs supérieure à celle des garnitures supérieures Cette raideur propre (élasticité effective) resulte non seulement du choix du matériau des garnitures, mais également de leurs dimensions. Les garnitures supérieures et inferieures ont ainsi des propriétés de matériau et/ou des dimensions de préférence différentes. For spring models in which the leaf springs are not adjacent over their entire length (for example the parabolic springs), preferably three linings are arranged below the master leaf spring, one in the middle and dev at the ends of the master spring leaf. All the spring leaves which extend up to the eyes are insulated from the shorter spring leaves. Advantageously, the inherent stiffness of the inner linings is moreover than that of the upper linings. This own stiffness (elasticity effective) results not only from the choice of packing material, but also from their dimensions. The upper and lower linings thus have preferably different material properties and / or dimensions.

Selon l'invention, l'une au moins des garnitures élastiques possede des trous. Un avantage de l'invention réside également dans le fait qu'il est prévu une plaque au-dessus de la garniture supérieure, ladite garniture dépassant atéralement de 1 'étrier de supports. Un autre mode de réalisation prévoit une plaque au-dessous de la garniture intérieure, au niveau de l'étrier de ressorts, ladite plaque et la garniture dépassant latéralement de l'étrier de ressorts. According to the invention, at least one of the elastic linings has holes. An advantage of the invention also resides in the fact that a plate is provided above the upper liner, said liner at least projecting from the support bracket. Another embodiment provides a plate below the interior lining, at the level of the spring bracket, said plate and the lining projecting laterally from the spring bracket.

D'une manière avantageuse, il est prévu, au-dessous de la lame de ressort maîtresse, trois garnitures, une garniture se trouvant au milieu et les deux autres se trouvant aux deux extrémités de la lame de ressort maîtresse. Il est également prévu, entre la lame de ressort maîtresse et les garnitures inférieures, une ou plusieurs lames de ressort. Un autre mode de réalisation comporte une garniture supérieure et une garniture inférieure au niveau de l'étrier de ressorts.Selon une variante de réalisation, enfin, l'étrier de ressorts est divise en un corps de support en U et une plaque de recouvrement qui sont reliés à l'aide de vis de serrage et entre lesquels la lame de ressort maîtresse et les lames de ressort sont maintenues sous tension. Ladite plaque de recouvrement possède alors un socle faisant saillie dans le corps de support. Advantageously, there are provided, below the master spring leaf, three linings, one lining located in the middle and the other two located at the two ends of the master spring leaf. There is also provided, between the master leaf spring and the lower linings, one or more spring leaves. Another embodiment has an upper lining and a lower lining at the level of the spring clip. According to an alternative embodiment, finally, the spring clip is divided into a U-shaped support body and a cover plate which are connected with clamping screws and between which the master leaf spring and the leaf spring are kept under tension. Said cover plate then has a base projecting into the support body.

D'autres buts, avantages et caractéristiques de la présente inventio0n ressortiront plus clairement de la description détaillée suivante de trois modes de réalisation de celle-ci, donnée à titre d'exemple nullement limitatif en référence aux dessins annexés dans lesquels
les figures i 2 et 4 sont des vues latérales schématiques de blocs-ressorts conformes à l'invention, et la figure 3 est une vue en coupe transversale d'un exemple de réalisation d'un bloc-ressort, dans la zone de l'étrier de ressorts.
Other objects, advantages and characteristics of the present invention will emerge more clearly from the following detailed description of three embodiments thereof, given by way of non-limiting example with reference to the accompanying drawings in which
Figures i 2 and 4 are schematic side views of spring blocks according to the invention, and Figure 3 is a cross-sectional view of an exemplary embodiment of a spring block, in the area of spring caliper.

Selon l'invention, les blocs-ressorts se composent, d'une manière traditionnelle, d'une lame de ressort métallique maîtresse 1 et de plusieurs arnes de ressorts métalliques 2, qui sont réunies à l'aide d'un étrier de ressorts 3. According to the invention, the spring blocks consist, in a traditional manner, of a master metal spring leaf 1 and of several metal spring arches 2, which are joined together using a spring stirrup 3 .

lame de ressort maîtresse 1 possède deux yeux de ressort 4 grâce auxquels l'ensemble du bloc-ressort est fixé au tourillon 5 du chassies. L'étrier de ressorts 3 porte le corps de boîte d'essieu 6
Dans l'exemple de réalisation de la figure 1, il est prévu deux garnitures 7a et 7b d'amortissement de vibrations et d'isolation, respectivement. La garniture 7a se trouve au-dessus de la lame de ressort maîtresse 1 et la garniture 7b se trouve entre la lame de ressort maîtresse 1 et l'appui inférieur de l'étrier de ressorts 3.
master leaf spring 1 has two spring eyes 4 by means of which the whole of the spring block is fixed to the pin 5 of the casings. The spring clip 3 carries the axle box body 6
In the embodiment of Figure 1, there are provided two seals 7a and 7b of vibration damping and insulation, respectively. The lining 7a is located above the master spring leaf 1 and the lining 7b is located between the master spring leaf 1 and the lower support of the spring clip 3.

Avec la disposition, conforme à l'invention, des garnitures 7a et 7b, la lame de ressort métallique maîtresse 1, en meme temps qu'une partie des lames de ressort 2, est séparée de l'étrier de ressorts 3 en ce qui concerne les vibrations. With the arrangement, in accordance with the invention, of the linings 7a and 7b, the master metal spring leaf 1, at the same time as part of the spring leaves 2, is separated from the spring clip 3 with regard to vibrations.

L'exemple de réalisation de la figure 2 prévoit quatre garnitures 7a, 7b, 7c, 7c'. Une garniture 7a se trouve dans la zone de l'étrier de ressorts 3, au-dessus de la lame de ressort métallique maîtresse 1. Juste au-dessous de la lame de de ressort maîtresse 1 est disposee une lame de ressort métallique 2' d'une longueur à peu près égale, c'est-à-dire qui s'étend jusqu'aux yeux de ressort 4 de la lame de ressort maîtresse 1. Au-dessous de la lame de ressort 2' est prévue, dans la zone de l'étrier de ressorts 3, une autre garniture 7b qui sépare cette lame de ressort 2' des autres les de ressort 2 situées au-dessous d'elle. The embodiment of Figure 2 provides four seals 7a, 7b, 7c, 7c '. A gasket 7a is located in the area of the spring clip 3, above the master metal spring leaf 1. Just below the master spring leaf 1 is disposed a metal spring leaf 2 'd 'a length approximately equal, that is to say which extends to the spring eyes 4 of the master leaf spring 1. Below the spring leaf 2' is provided, in the area from the spring caliper 3, another lining 7b which separates this leaf spring 2 'from the other spring leaves 2 situated below it.

Aux deux extrémités extérieures du bloc-ressort sont prévues, de la même façon, des garnitures 7c, 7c' qui isolent la lame de ressort 2' et la lame de ressort maîtresse 1 par rapport aux autres lames de ressort 2 et, ainsi, à l'étrier de ressorts 3. At the two outer ends of the spring block are provided, in the same way, fittings 7c, 7c 'which isolate the spring leaf 2' and the master spring leaf 1 with respect to the other spring leaves 2 and, thus, the spring clip 3.

Il s'est avéré avantageux que la garniture 7a prévue au-dessus de la lame de ressort m-aitresse 1 soit plus molle que les garnitures inferieures 7b, 7c, 7c'.  It has been found advantageous that the lining 7a provided above the spring leaf m -resse 1 is softer than the lower linings 7b, 7c, 7c '.

Dans l'exemple de réalisation de la figure 3, l'étrier de ressorts 3 est divisé en un corps de support en U 39 et une plaque de recouvrement 31. La plaque de recouvrement 3t est pourvue d'un socle 32 faisant saillie dans le corps de support 30. La lame de ressort maîtresse 1 et les lames de ressort 2 sont insérées, avec les garnitures 7 d'amortissement de vibrations, dans le corps de support 30 et maintenues sous tension par a plaque de recouvrement 31. La plaque de recouvrement 31 et le corps de support 30 sont reliés entre eux à l'aide de vis de serrage 9. In the embodiment of Figure 3, the spring clip 3 is divided into a U-shaped support body 39 and a cover plate 31. The cover plate 3t is provided with a base 32 projecting into the support body 30. The master spring leaf 1 and the spring leaves 2 are inserted, with the vibration damping fittings 7, in the support body 30 and kept under tension by a cover plate 31. The support plate cover 31 and the support body 30 are interconnected by means of clamping screws 9.

Un mode de réalisation s'est avéré avantageux, en particulier en ce qui concerne le découplage sonore et la durabilité. Dans ce mode de réalisation, il est prévu, au-dessous de la garniture inférieure 7b, une plaque métallique 8' dépassant de l'étrier de ressorts 3. Ainsi, la garniture 7b en élastomère peut être plus grande que l'étrier de ressorts lui-même.  One embodiment has proved to be advantageous, in particular with regard to sound decoupling and durability. In this embodiment, there is provided, below the lower lining 7b, a metal plate 8 'protruding from the spring bracket 3. Thus, the elastomer lining 7b may be larger than the spring bracket himself.

Claims (12)

REVENDICATIONS 1. Bloc-ressort comportant plusieurs lames de ressort métalliques réunies à l'aide d'un étrier de ressorts (3), une lame de ressort maitresse (1) pourvue d'yeux de ressort (4) étant reliée au châssis d'un véhicule, notamment d'un véhicule sur rails, caractérisé en ce que la lame de ressort métallique maîtresse ( est isolée de l'étrier de ressorts (3), seule ou avec d'autres lames de ressort (2), en ce qui concerne les vibrations, à l'aide de garnitures élastiques (7a, 7b, 7c). 1. Spring block comprising several metal spring blades joined together using a spring clip (3), a master spring leaf (1) provided with spring eyes (4) being connected to the chassis of a vehicle, in particular of a rail vehicle, characterized in that the master metal spring leaf (is isolated from the spring clip (3), alone or with other spring leaves (2), as far as vibrations, using elastic seals (7a, 7b, 7c). 2. Bloc-ressort selon la revendication 1, caractérisé en ce que les garnitures (Ta, 7b, Tc) sont formées par des couches en élastomère. 2. Spring block according to claim 1, characterized in that the linings (Ta, 7b, Tc) are formed by elastomer layers. 3. Bloc-ressert selon l'une quelconque des revendications l et 2, caractérisé en ce que toutes les lames de ressort (2') qui s'étendent jusqu'aux yeux de ressort (4) sont isolées par rapport aux lames de ressort plus courtes (2). 3. Spring block according to any one of claims l and 2, characterized in that all the spring leaves (2 ') which extend to the spring eyes (4) are isolated from the spring leaves shorter (2). 4. Bloc-ressort selon l'une au moins des revendications 1 à 3, caractérisé en ce que la raideur propre de la ou des garnitures (7b) inférieures est supérieure à celle de la ou des garnitures (7b superieures. 4. Spring assembly according to at least one of claims 1 to 3, characterized in that the inherent stiffness of the lining (s) (7b) is greater than that of the lining (s) (7b). 5. Bloc-ressort selon l'une au moins des revendications 1 à 4, caractérisé en ce que 1 une au moins des garnitures (7a, 7b, Tc) possède des trous. 5. Spring block according to at least one of claims 1 to 4, characterized in that at least one of the linings (7a, 7b, Tc) has holes. 6. Bloc-ressort selon la revendication 1, caractérisé en ce qu il est prévu, au-dessus de la garniture supérieure (7a), une plaque (8) la garniture (7a) dépassant latéralement de l'étrier de ressorts (3). 6. Spring block according to claim 1, characterized in that there is provided, above the upper lining (7a), a plate (8) the lining (7a) projecting laterally from the spring bracket (3) . 7. Bloc-ressort selon la revendication 1, caracterise en ce qu il est prévu, au-dessous de la garniture inférieure (7b), une plaque (8'), au niveau de l'étrier de ressorts (3), ladite plaque et la garniture (7b) dépassant latéralement de l'étrier de ressorts (3). 7. Spring assembly according to claim 1, characterized in that there is provided, below the lower lining (7b), a plate (8 '), at the level of the spring clip (3), said plate and the lining (7b) projecting laterally from the spring bracket (3). 8. Bloc-ressort selon ? une au moins des revendications i à 6, caractérisé en ce qu'il est prévu, au-dessous de la lame de ressort maitresse (1), trois garnitures (7b, Tc, 7c'), la garniture (7b) se trouvant au milieu et les deux garnitures (7c, 7c') se trouvant aux deux extrémités de la lame de ressort maîtresse (1) 8. Spring block according to? at least one of claims i to 6, characterized in that there are provided, below the master spring leaf (1), three linings (7b, Tc, 7c '), the lining (7b) being at the middle and the two linings (7c, 7c ') located at the two ends of the master spring leaf (1) 9. Bloc-ressort selon l'une quelconque des revendications 1 et 7, caractérise en ce qu'il est prévu, entre la lame de ressort maîtresse (1) et les garnitures inférieures (7c), une ou plusieurs lames de ressort (2).  9. Spring assembly according to any one of claims 1 and 7, characterized in that it is provided, between the master leaf spring (1) and the lower linings (7c), one or more spring leaves (2 ). 10. Bloc-ressort selon la revendication 1, caractérisé en ce qu'une garniture supérieure et une garniture inférieure (respectivement 10. Spring block according to claim 1, characterized in that an upper lining and a lower lining (respectively Ta et b) sont prévues au niveau de l'étrier de ressorts (3).Ta and b) are provided at the level of the spring clip (3). 11. Bloc-ressert selon l'une au moins des revendications I à 9, caractérisé en ce que l'étrier de ressorts (3) est divise en un corps de support en U (3Q) et une plaque de recouvrement (31) qui sont relies à l'aide de vis de serrage (9) et entre lesquels la lame de ressort maîtresse (1) et les lames de ressort (2) sont maintenues sous tension. 11. Spring block according to at least one of claims I to 9, characterized in that the spring clip (3) is divided into a U-shaped support body (3Q) and a cover plate (31) which are connected using clamping screws (9) and between which the master leaf spring (1) and the spring leaves (2) are kept under tension. 12. Bloc-ressort selon la revendication 10, caractérisé en ce que la plaque de recouvrement (31) possède un socle (32) faisant saillie dans le corps de support (30).  12. Spring assembly according to claim 10, characterized in that the cover plate (31) has a base (32) projecting into the support body (30).
FR9107880A 1990-06-28 1991-06-26 SPRING PACK. Expired - Fee Related FR2664006B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT138190A ATA138190A (en) 1990-06-28 1990-06-28 SPRING PACK

Publications (2)

Publication Number Publication Date
FR2664006A3 true FR2664006A3 (en) 1992-01-03
FR2664006B3 FR2664006B3 (en) 1992-06-12

Family

ID=3512655

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9107880A Expired - Fee Related FR2664006B3 (en) 1990-06-28 1991-06-26 SPRING PACK.

Country Status (5)

Country Link
AT (1) ATA138190A (en)
DE (1) DE9190097U1 (en)
FR (1) FR2664006B3 (en)
IT (1) IT225190Z2 (en)
WO (1) WO1992000202A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180698A (en) * 1976-01-23 1979-12-25 Carpenter Roy B Jr System and equipment for atmospherics conditioning
AU664328B2 (en) * 1992-12-24 1995-11-09 Alcoa Of Australia Limited Agglomeration of alumina material
US10286742B2 (en) * 2017-06-12 2019-05-14 GM Global Technology Operations LLC Reinforcement plate for an auxiliary state leaf pack of a leaf spring system
CN107740830A (en) * 2017-09-14 2018-02-27 株洲时代新材料科技股份有限公司 The compound plate spring assembly of few piece

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539091A (en) * 1947-06-27 1951-01-23 Frank E Linke Spring mounting for automotive vehicles
FR1234217A (en) * 1959-05-12 1960-10-14 Damiron & Cie Improvements in the construction of springs and self-damping springs obtained
DE1166016B (en) * 1959-10-26 1964-03-19 Ford Werke Ag Leaf spring fastening for rigid axles of motor vehicles
FR1449011A (en) * 1965-07-01 1966-08-12 Ressorts Du Nord Sa Advanced shock absorber and its applications, in particular to vehicle suspension springs
DE6608349U (en) * 1968-05-10 1971-08-26 Brueninghaus Gmbh Stahlwerke CENTER FASTENING FOR SPRING BLADES.
DE3800587C1 (en) * 1988-01-12 1989-04-27 Krupp Brueninghaus Gmbh, 5980 Werdohl, De

Also Published As

Publication number Publication date
ITBZ910003V0 (en) 1991-05-26
FR2664006B3 (en) 1992-06-12
IT225190Z2 (en) 1996-10-24
ITBZ910003U1 (en) 1992-11-26
WO1992000202A1 (en) 1992-01-09
ATA138190A (en) 1992-11-15
DE9190097U1 (en) 1992-05-07

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