EP0688612B1 - Dolly block - Google Patents

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Publication number
EP0688612B1
EP0688612B1 EP19950420167 EP95420167A EP0688612B1 EP 0688612 B1 EP0688612 B1 EP 0688612B1 EP 19950420167 EP19950420167 EP 19950420167 EP 95420167 A EP95420167 A EP 95420167A EP 0688612 B1 EP0688612 B1 EP 0688612B1
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EP
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Prior art keywords
dollies
curvature
dolly
upper face
turned
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EP19950420167
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German (de)
French (fr)
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EP0688612A1 (en
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Karabet Kosayan
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/06—Removing local distortions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D1/00—Hand hammers; Hammer heads of special shape or materials

Definitions

  • the invention relates to a sheet metal pile set for the straightening of the sheets of automobile bodies.
  • a pile is a metallic piece, generally made made of cast iron or steel, of rather bulky shape, without however preventing its manual grip, and intended to serve as an anvil.
  • heaps are commonly used for finalize the straightening of the sheets which should be taken off, including accidents. This finalization work is carried out by means of a plurality of heaps and a hammer, the heap held in one hand serving anvil for hammer strikes to achieve a smoothing of the body after its straightening.
  • the piles currently used correspond to existing patents, according to the research report US-A-1441316 and US-A-1506578, have too rounded and too heavy.
  • the pile known from document US-A-1506578 shows an elongated shape and of variable thickness and has at the thickest end a rounded edge.
  • these heaps are mainly used to straighten the sheets and little for deburring. Because on the flat surface to be taken off, for example, the use of heaps too rounded causes straightening with thinning and expansion of the metal sheet metal which is absolutely to be avoided during the debossing operation FIG.
  • FIG. 3 shows by way of illustration a vehicle body roof under which we presented a bunch of invention, the form of which follows well that of sheet metal, and the existing piles corresponding to patents US-A-1441316 and US-A-1506578 whose shape is too rounded and the weight and too heavy to be able to follow the shapes of the existing curvatures of body.
  • certain locations in vehicles (the doors, fenders) require the use of space-saving heaps to be able to access the area to be removed, which is not the case with already existing parts.
  • the object of the invention is to overcome these drawbacks. This item is hit by a sheet metal heap game according to claim 1.
  • the pile (1) is intended to be used in flat and curved sectors in one direction as shown in Figure 3.
  • the pile (2) is intended for use in differently curved areas in both ways.
  • Figure 1 is a schematic perspective representation of the game of two heaps according to an embodiment of the invention.
  • Figure 2 is a schematic cross-sectional representation of one of the two heaps in Figure 1.
  • Figure 3 is a representation of a body roof under which are represented the heap of the invention and heaps according to the state of the art.
  • FIGS 4 and 5 show in detail an embodiment of the heaps of the game of heap according to the invention.
  • the pile (1) is slightly smaller heap (2), although these two elements could be the same length, is easily gripped in one hand, and has an elongated shape and thinned ending at its end (5) with a shape curved (radius of curvature 150 to 190 mm and advantageously close 170 mm; see Figure 4).
  • the end (13) of the pile (1) is the thickest, has two edges (9) and (10), also rounded.
  • the radius of curvature of the edge (9) is much shorter than that of the edge (10), so that the curvature (9) is much more pronounced than the edge (10), the radius of curvature (19) can varied by thickness.
  • the upper face (3) (from one end to the other) is slightly curved in the transverse direction, as can be observed in FIG. 4.
  • the radius of curvature of this upper face, in the transverse plane is between 150 and 190 mm, and advantageously close to 170 mm.
  • the upper face first of all has a substantially flat profile (radius of curvature of 170 mm) near the end (13) over a distance of 50 mm, then gradually bends with a radius of curvature which varies from 150 to about 48 mm.
  • the anterior end (5) is located in a plane underlying with respect to the plane containing the base (7) of the heap (1).
  • the base (7) is composed of a perfectly flat part of length 70 mm, and a rounded part joining the end (5) with a curvature of 56.5 mm.
  • the zone (5) and the base (7) converge, defining a rounding of 2 mm.
  • the two side faces (15) and (16) are parallel and perfectly flat. They define with the upper and lower faces edges whose radius of curvature is 1 mm.
  • the relative inclination of the upper face (3) relative to the base (7) is between 3 and 10 °, and advantageously close to 5 °.
  • the pile (2) is slightly larger heap (1), has an elongated shape ending at its end (6) by a curved and thinned shape (radius of curvature 55 mm).
  • the edge (11, 12) can take curvature according to the modification of the thickness of the end (14).
  • the upper face (4) (from one end to another) is curved in the transverse direction, as can be seen in Figure (5).
  • the radius of curvature of this upper face, in the transverse direction is between 256 mm (zone 14), 93.5 mm (zone 4), and 55 mm (edge (6)).
  • the upper face presents over a distance of 90 mm, a substantially flat profile (radius of curvature greater than 250 mm), then gradually bends with a varying radius of curvature from 64 mm to 16 mm.
  • the anterior end (6) is located in an underlying plane relative to the plan containing the base (8) of the heap (2).
  • the base (8) is composed of a part perfectly flat, 116 mm long, with a rounded part joining the end (6) with a curvature of 21.5 mm.
  • the end (6) and the base (8) are converge by defining a rounding of 2 mm.
  • the two side faces (17) and (18) are parallel and perfectly flat. They define with the upper and lower faces edges whose radius of curvature is 2 mm.
  • the relative tilt of the face upper (4) relative to the base (8) is approximately 2 ° which can vary in as a function of the change in pile thickness (2).
  • the piles (1) and (2) presented in Figure 1 have as maximum thickness from 26 to 35 mm with change in the curvatures of the edges (9, 10; 11, 12).
  • the heap dimensions (1) can be changed in length and width according to the profession.
  • the heap (1) of smaller dimension, is more precisely intended for straightening and removing roughly frustoconical sheets curved in one direction.
  • the anterior zone (5) is intended to allow to enter the level of the narrower zones and the angles of bodywork or sheet metal.
  • the pile (2) is intended more particularly to unravel sections bent in both directions.
  • the tables (I to IV) below represent the curvatures and their evolution in areas of 10 mm thickness starting from the end (5) to (13) for the pile (1) and from the 'end (6) to (14) for the pile (2).
  • TAS I AREAS FROM (5); (mm) Longitudinal radius of curvature (mm) Upper side Lower side 10 45 56.5 20 48 30 70 40 148 50 150 dish 60 > 250 70 80 90 100 110 8 9 The two faces meet with a curvature of 30 mm.
  • the pile (2) allows the deburring of practically all the curvatures used in the automobile body slight.
  • the two heaps (1) and (2) are easily adaptable to work of straightening and deburring for the bodywork of heavy goods vehicles or thicker sheets, changing the thickness, and for the pile (1) the width from 40 to 50 mm.
  • the heap game of the invention therefore makes it easy to replace the devices known to date, and especially to reduce the number of parts necessary for the straightening and deburring of the sheets.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Toys (AREA)

Description

L'invention concerne un jeu de tas de tôlerie destiné au redressage des tôles des carrosseries automobiles.The invention relates to a sheet metal pile set for the straightening of the sheets of automobile bodies.

De manière connue, un tas est une pièce métallique, généralement réalisée en fonte ou en acier, de forme assez volumineuse, sans toutefois empêcher sa préhension manuelle, et destiné à servir d'enclume.In a known manner, a pile is a metallic piece, generally made made of cast iron or steel, of rather bulky shape, without however preventing its manual grip, and intended to serve as an anvil.

Dans l'industrie automobile, de tels tas sont couramment utilisés pour finaliser le redressage des tôles qu'il convient de décabosser suite, notamment à des accidents. Ce travail de finalisation s'effectue au moyen d'une pluralité de tas et d'un marteau, le tas tenu dans une main servant d'enclume pour les coups de marteau assénés afin d'aboutir à un lissage de la carrosserie après son redressement.In the automotive industry, such heaps are commonly used for finalize the straightening of the sheets which should be taken off, including accidents. This finalization work is carried out by means of a plurality of heaps and a hammer, the heap held in one hand serving anvil for hammer strikes to achieve a smoothing of the body after its straightening.

L'un des problèmes qui se posent chez les carrossiers, est qu'il n'existe pas de tas universel. Aussi, en fonction des courbures de la carrosserie, a-t-il besoin d'un grand nombre de tas pour adapter le tas qui convient à la courbure de la tôle considérée. De la sorte, outre de grands nombres de pièces nécessaires, il n'est pas rare de perdre un ou plusieurs de ces éléments constitutifs du jeu de tas, de sorte que bien souvent, le carrossier ou tôlier ne dispose pas du ou des tas adéquats à la courbure de la tôle considérée qu'il souhaite redresser.One of the problems with body shops is that there is no such thing as universal heap. Also, depending on the curvature of the body, did he need a large number of heaps to adapt the heap to suit the curvature of the sheet considered. In this way, in addition to large numbers of required parts, it is not uncommon to lose one or more of these components of the heap game, so that often the bodybuilder or sheet metal worker does not have the pile (s) adequate for the curvature of the sheet metal considered he wishes to straighten.

Les tas utilisés actuellement correspondent aux brevets existants, d'après le rapport de recherches US-A-1441316 et US-A- 1506578, possèdent des formes trop arrondies et sont trop lourdes. Le tas connu du document US-A-1506578 montre une forme allongée et d'épaisseur variable et présente au niveau de l'extrémité la plus épaisse une arête arrondie. En principe, ces tas sont principalement utilisés pour redresser les tôles et peu pour le décabossage. Car sur la surface plate à décabosser, par exemple, l'utilisation de tas trop arrondis provoque le redressage avec un amincissement et dilatation du métal de la tôle ce qui est absolument à éviter pendant l'opération de décabossage figure 3 présente à titre illustratif un toit de carrosserie de véhicule sous lequel nous avons présenté un tas de l'invention, dont la forme suit bien celle de la tôle, et les tas existants correspondant aux brevets US-A-1441316 et US-A-1506578 dont la forme est trop arrondie et le poids et trop lourd pour pouvoir suivre les formes des courbures existantes de carrosserie. En outre, certain emplacements dans les véhicules (les portières, les ailes) nécessitent l'utilisation de tas peu encombrants pour pouvoir accéder à l'endroit à décabosser ce qui n'est pas le cas avec les pièces déjà existantes. The piles currently used correspond to existing patents, according to the research report US-A-1441316 and US-A-1506578, have too rounded and too heavy. The pile known from document US-A-1506578 shows an elongated shape and of variable thickness and has at the thickest end a rounded edge. In principle, these heaps are mainly used to straighten the sheets and little for deburring. Because on the flat surface to be taken off, for example, the use of heaps too rounded causes straightening with thinning and expansion of the metal sheet metal which is absolutely to be avoided during the debossing operation FIG. 3 shows by way of illustration a vehicle body roof under which we presented a bunch of invention, the form of which follows well that of sheet metal, and the existing piles corresponding to patents US-A-1441316 and US-A-1506578 whose shape is too rounded and the weight and too heavy to be able to follow the shapes of the existing curvatures of body. In addition, certain locations in vehicles (the doors, fenders) require the use of space-saving heaps to be able to access the area to be removed, which is not the case with already existing parts.

L'objet de l'invention est de s'affranchir de ces inconvénients. Cet objet est atteint par un jeu de tas de tôlerie selon la revendication 1.The object of the invention is to overcome these drawbacks. This item is hit by a sheet metal heap game according to claim 1.

De la sorte, il est possible avec un jeu de ces deux tas selon l'invention, de faire face à quatre vingt dix pourcent (90%) des situations rencontrées et ainsi permet d'aboutir à une quasi-universalité d'un tel jeu de deux tas, hormis, pour des situations très spécifiques et en outre assez rarement rencontrées. Chacun des deux tas peut-être utilisé séparement. Le tas (1) est destiné à être utilisé dans les secteurs plats et courbés dans un sens comme le montre la figure 3. Le tas (2) est destiné à être utilisé dans les secteurs courbés différemment dans les deux sens.In this way, it is possible with a set of these two heaps according to the invention, to cope with ninety percent (90%) of the situations encountered and thus leads to a quasi-universality of such a game of two heaps, except, for very situations specific and also quite rarely encountered. Each of the two heaps can be used separately. The pile (1) is intended to be used in flat and curved sectors in one direction as shown in Figure 3. The pile (2) is intended for use in differently curved areas in both ways.

De fait, de part la forme particulière légèrement arrondie et bombée des deux tas, on aboutit à l'ensemble des courbures possibles des carrosseries, notamment des carrosseries automobiles, et de manière plus générale des tôles qu'il convient de redresser ou de décabosser.In fact, due to the particular slightly rounded and rounded shape of the two heaps, we end up with all the possible curvatures of the bodies, in particular automobile bodies, and more generally sheets that should be straightened or removed.

De manière dont l'invention peut-être réalisée et les avantages qui en découlent ressortiront mieux de l'exemple de réalisation qui suit, donné à titre indicatif et destiné à la carrosserie de voitures légères, à l'appui des figures annexées.How the invention can be realized and the advantages which will emerge more clearly from the example of embodiment which follows, given to indicative and intended for the bodywork of light cars, to using the attached figures.

La figure 1 est une représentation schématique en perspective du jeu de deux tas conformes à un mode de réalisation de l'invention.Figure 1 is a schematic perspective representation of the game of two heaps according to an embodiment of the invention.

La figure 2 est une représentation schématique en section transversale de l'un des deux tas de la figure 1.Figure 2 is a schematic cross-sectional representation of one of the two heaps in Figure 1.

La figure 3 est une représentation d'un toit de carrosserie sous lequel sont représentés le tas de l'invention et des tas selon l'état de la technique.Figure 3 is a representation of a body roof under which are represented the heap of the invention and heaps according to the state of the art.

Les figures 4 et 5 montrent en détail un mode de réalisation des tas du jeu de tas selon l'invention.Figures 4 and 5 show in detail an embodiment of the heaps of the game of heap according to the invention.

Le tas (1), est de dimension légèrement inférieure au tas (2), bien que ces deux éléments pourraient être de la même longueur, est aisément préhensible dans une main, et présente une forme allongée et amincie se terminant au niveau de son extrémité (5) par une forme recourbée (rayon de courbure de 150 à 190 mm et avantageusement proche de 170 mm ; voir Figure 4). The pile (1) is slightly smaller heap (2), although these two elements could be the same length, is easily gripped in one hand, and has an elongated shape and thinned ending at its end (5) with a shape curved (radius of curvature 150 to 190 mm and advantageously close 170 mm; see Figure 4).

L'extrémité (13) du tas (1) est la plus épaisse, présente deux arêtes (9) et (10), également arrondies. Le rayon de courbure de l'arête (9) est beaucoup plus court que celui de l'arête (10), de sorte que la courbure (9) est beaucoup plus prononcée que l'arête (10), le rayon de courbure (19) peut varié selon l'épaisseur.The end (13) of the pile (1) is the thickest, has two edges (9) and (10), also rounded. The radius of curvature of the edge (9) is much shorter than that of the edge (10), so that the curvature (9) is much more pronounced than the edge (10), the radius of curvature (19) can varied by thickness.

Parallèlement, la face supérieure (3) (d'une extrémité à une autre) est légèrement bombée dans le sens transversal, ainsi que l'on peut l'observer sur la figure 4. De fait, le rayon de courbure de cette face supérieure, dans le plan transversal est compris entre 150 et 190 mm, et avantageusement proche de 170 mm.At the same time, the upper face (3) (from one end to the other) is slightly curved in the transverse direction, as can be observed in FIG. 4. In fact, the radius of curvature of this upper face, in the transverse plane is between 150 and 190 mm, and advantageously close to 170 mm.

Dans le plan longitudinal, la face supérieure présente tout d'abord un profil sensiblement plan (rayon de courbure de 170 mm) prés de l'extrémité (13) sur une distance de 50 mm, puis se recourbe progressivement avec un rayon de courbure qui varie de 150 à environ 48 mm. De fait compte tenu de cette courbure variable, l'extrémité antérieure (5) est située dans un plan sous-jacent par rapport au plan contenant la base (7) du tas (1). La base (7) est composée d'une partie parfaitement plate de longueur 70 mm, et d'une partie arrondie rejoignant l'extrémité (5) avec une courbure de 56,5 mm. La zone (5) et la base (7) se convergent en définissant un arrondi de 2 mm.In the longitudinal plane, the upper face first of all has a substantially flat profile (radius of curvature of 170 mm) near the end (13) over a distance of 50 mm, then gradually bends with a radius of curvature which varies from 150 to about 48 mm. In fact given of this variable curvature, the anterior end (5) is located in a plane underlying with respect to the plane containing the base (7) of the heap (1). The base (7) is composed of a perfectly flat part of length 70 mm, and a rounded part joining the end (5) with a curvature of 56.5 mm. The zone (5) and the base (7) converge, defining a rounding of 2 mm.

Les deux faces latérales (15) et (16) sont parallèles et parfaitement plates. Elles définissent avec les faces supérieures et inférieures des arêtes dont le rayon de courbure est de 1 mm.The two side faces (15) and (16) are parallel and perfectly flat. They define with the upper and lower faces edges whose radius of curvature is 1 mm.

En outre l'inclinaison relative de la face supérieure (3) par rapport à la base (7) est comprise entre 3 et 10°, et avantageusement voisine de 5°.Furthermore, the relative inclination of the upper face (3) relative to the base (7) is between 3 and 10 °, and advantageously close to 5 °.

Le tas (2), selon les deux variantes, est de dimension légèrement supérieure au tas (1), présente une forme allongée se terminant au niveau de son extrémité (6) par une forme recourbée et amincie (rayon de courbure transversal de 55 mm).The pile (2), according to the two variants, is slightly larger heap (1), has an elongated shape ending at its end (6) by a curved and thinned shape (radius of curvature 55 mm).

L'arête (11, 12) pourra prendre de courbure selon la modification de l'épaisseur de l'extrémité (14). The edge (11, 12) can take curvature according to the modification of the thickness of the end (14).

La face supérieure (4) (d'une extrémité à une autre) est bombée dans le sens transversal, ainsi qu'on peut l'observer sur la figure (5). De fait, le rayon de courbure de cette face supérieure, dans le sens transversal, est compris entre 256 mm (zone 14), 93,5 mm (zone 4), et 55 mm (arête (6)).The upper face (4) (from one end to another) is curved in the transverse direction, as can be seen in Figure (5). In fact, the radius of curvature of this upper face, in the transverse direction, is between 256 mm (zone 14), 93.5 mm (zone 4), and 55 mm (edge (6)).

Dans le plan longitudinal, la face supérieure présente sur une distance de 90 mm, un profil sensiblement plan (rayon de courbure supérieur à 250 mm), puis se recourbe progressivement avec un rayon de courbure qui varie de 64 mm à 16 mm. De fait, compte tenu de cette courbure variable, l'extrémité antérieure (6) est située dans un plan sous-jacent par rapport au plan contenant la base (8) du tas (2). La base (8) est composée d'une partie parfaitement plate de longueur 116 mm, et d'une partie arrondie rejoignant l'extrémité (6) avec une courbure de 21,5 mm. L'extrémité (6) et la base (8) se convergent en définissant un arrondi de 2 mm.In the longitudinal plane, the upper face presents over a distance of 90 mm, a substantially flat profile (radius of curvature greater than 250 mm), then gradually bends with a varying radius of curvature from 64 mm to 16 mm. In fact, given this variable curvature, the anterior end (6) is located in an underlying plane relative to the plan containing the base (8) of the heap (2). The base (8) is composed of a part perfectly flat, 116 mm long, with a rounded part joining the end (6) with a curvature of 21.5 mm. The end (6) and the base (8) are converge by defining a rounding of 2 mm.

Les deux faces latérales (17) et (18) sont parallèles et parfaitement plates. Elles définissent avec les faces supérieures et inférieures des arêtes dont le rayon de courbure est de 2 mm. En outre, l'inclinaison relative de la face supérieure (4) par rapport à la base (8) est d'environ 2° pouvant varier en fonction du changement de l'épaisseur du tas (2).The two side faces (17) and (18) are parallel and perfectly flat. They define with the upper and lower faces edges whose radius of curvature is 2 mm. In addition, the relative tilt of the face upper (4) relative to the base (8) is approximately 2 ° which can vary in as a function of the change in pile thickness (2).

Les tas (1) et (2) présentés sur la figure 1 ont comme épaisseur maximum de 26 à 35 mm avec changement dans les courbures des arêtes (9, 10 ; 11, 12). Les dimensions du tas (1) peuvent être modifiées en longueur et en largeur selon la profession.The piles (1) and (2) presented in Figure 1 have as maximum thickness from 26 to 35 mm with change in the curvatures of the edges (9, 10; 11, 12). The heap dimensions (1) can be changed in length and width according to the profession.

Le tas (1), de plus petite dimension, est plus précisément destiné à redresser et à décabosser des tôles sensiblement plates et tronconiques courbées dans un sens. La zone antérieure (5) est destinée à permettre de rentrer au niveau des zones plus étroites et des angles de carrosserie ou de tôlerie.The heap (1), of smaller dimension, is more precisely intended for straightening and removing roughly frustoconical sheets curved in one direction. The anterior zone (5) is intended to allow to enter the level of the narrower zones and the angles of bodywork or sheet metal.

Le tas (2) est destiné plus paticulièrement à décabosser des sections courbée dans les deux sens.The pile (2) is intended more particularly to unravel sections bent in both directions.

A titre indicatif les tableaux (I à IV) ci-dessous représentent les courbures et leurs évolutions dans des zones de 10 mm d'épaisseurs en partant de l'extrémité (5) à (13) pour le tas (1) et de l'extrémité (6) à (14) pour le tas (2). TAS I
ZONES A PARTIR DE (5) ; (mm) Rayon de courbure Longitudinale (mm) Face Supérieure Face inférieure 10 45 56.5 20 48 30 70 40 148 50 150 plat 60 > 250 70 80 90 100 110 8 9 Les deux faces se rejoignent avec une courbure de 30 mm. TAS I
ZONES A PARTIR DE (5) ; (mm) Rayon de courbure Transversale (mm) Face Supérieure Face Inférieure Partie Centrale Bord Partie Centrale Bord de 10 à 110 170 1 plat 1 TAS II
ZONES A PARTIR DE (6) ; (mm) Rayon de courbure Longitudinale (mm) Face Supérieure Face Inférieure 10 16 ≤ r ≤ 22 21,5 20 62 plat 30 64 de 40 à 130 r > 250 140 10 10 Les deux faces se rejoignent avec une courbure de 30 mm. TAS II
ZONES A PARTIR DE (6) ; (mm) Rayon de courbure Transversale (mm) Face Supérieure Face Inférieure Partie Centrale Bord Partie Centrale Bord de 10 à 30 55 2,5 plat 2,5 de 40 à 130 55 < r et r ≤ 93,5 As an indication, the tables (I to IV) below represent the curvatures and their evolution in areas of 10 mm thickness starting from the end (5) to (13) for the pile (1) and from the 'end (6) to (14) for the pile (2). TAS I
AREAS FROM (5); (mm) Longitudinal radius of curvature (mm) Upper side Lower side 10 45 56.5 20 48 30 70 40 148 50 150 dish 60 > 250 70 80 90 100 110 8 9 The two faces meet with a curvature of 30 mm. TAS I
AREAS FROM (5); (mm) Transverse radius of curvature (mm) Upper side Lower side Central part Edge Central part Edge from 10 to 110 170 1 dish 1 TAS II
AREAS FROM (6); (mm) Longitudinal radius of curvature (mm) Upper side Lower side 10 16 ≤ r ≤ 22 21.5 20 62 dish 30 64 from 40 to 130 r> 250 140 10 10 The two faces meet with a curvature of 30 mm. TAS II
AREAS FROM (6); (mm) Transverse radius of curvature (mm) Upper side Lower side Central part Edge Central part Edge from 10 to 30 55 2.5 dish 2.5 from 40 to 130 55 <r and r ≤ 93.5

Compte tenu des différentes valeurs indiquées, notamment des rayons de courbure des parties de chacun des tas, il est possible de décabosser de manière safisfaisante par le seul biais de ce jeu de deux tas, des tôles de tous profils et de toutes épaisseurs.Taking into account the different values indicated, in particular the radii of curvature of the parts of each pile, it is possible to unpack satisfactorily through this game of two heaps, sheets of all profiles and all thicknesses.

Grâce à sa largeur (40 mm) le tas (2) permet le décabossage de pratiquement toutes les courbures utilisées dans la carrosserie automobile légère. Les deux tas (1) et (2) sont adaptables facilement à des travaux de redressage et de décabossage pour la carrosserie de poids lourds ou pour des tôles plus épaisses, en modifiant l'épaisseur, et pour le tas (1) la largeur de 40 à 50 mm.Thanks to its width (40 mm) the pile (2) allows the deburring of practically all the curvatures used in the automobile body slight. The two heaps (1) and (2) are easily adaptable to work of straightening and deburring for the bodywork of heavy goods vehicles or thicker sheets, changing the thickness, and for the pile (1) the width from 40 to 50 mm.

Le jeu de tas de l'invention permet donc de manière simple de remplacer les dispositifs connus à ce jour, et surtout de réduire le nombre de pièces nécessaires au redressage et au décabossage des tôles.The heap game of the invention therefore makes it easy to replace the devices known to date, and especially to reduce the number of parts necessary for the straightening and deburring of the sheets.

Claims (10)

  1. Set of dollies for improving the straightening of and the removal of dents from sheet metal, particularly of motor vehicles, consisting of a first dolly (1) and of a second dolly (2) of elongate shape and varying thickness, having, at one of their ends, a slightly turned-down and tapered end portion (5, 6) forming an edge, and at the other, thickest, end (13, 14), two rounded edges (9, 10; 11, 12) of which the radius of curvature in the longitudinal plane is different, the upper face of each of these two dollies (1, 2) exhibiting a portion of approximately flat profile in the longitudinal plane near the said rounded edges (9, 10; 11, 12).
  2. Set of dollies according to Claim 1, characterized in that the upper face (3, 4) of the dollies (1, 2) is curved in transverse section and has a turned-down portion in longitudinal section.
  3. Set of dollies according to either of Claims 1 and 2, characterized in that the longitudinal profile of the upper face (3), or (4), of each of the two dollies (1, 2) varies from the said approximately flat portion to the front end along the said turned-down portion, the radius of curvature of this turned-down portion in the longitudinal plane decreasing towards the said edge-forming end (5, 6).
  4. Set of dollies according to either of Claims 1 and 2, characterized in that the turned-down tapered edge (5) of the first dolly (1) is approximately straight and in that the turned-down tapered edge (6) of the dolly (2) adopts a profile in a curved line with a curvature of between 50 and 90 mm.
  5. Set of dollies according to one of the preceding claims, characterized in that the relative inclination of the upper face (3), with respect to the base (7) of the dolly (1) is between 3 and 10°.
  6. Set of dollies according to either of Claims 1 and 2, characterized in that the end (6) of the second dolly (2) has a radius of curvature of between 50 and 90 mm, and the relative inclination of the upper face (4) with respect to the base (8) is between 1 and 5°.
  7. Set of dollies according to one of the preceding claims, characterized in that the width of the dolly (1, 2) may be increased from 40 mm to 50 mm.
  8. Set of dollies according to one of the preceding claims, characterized in that the thicknesses of the dollies (1) and (2) may be increased from 26 mm to 35 mm by altering the curvatures of the rounded edges (9, 10; 11, 12).
  9. Set of dollies according to one of the preceding claims, characterized in that the lengths of the dollies (1) and (2) can be lengthened or shortened without changing the curvatures and by merely increasing the flat parts.
  10. Set of dollies according to one of the preceding claims, characterized in that the upper face (3 and 4) of the dollies (1, 2) is curved in transverse and longitudinal section according to Tables I to IV.
EP19950420167 1994-06-23 1995-06-23 Dolly block Expired - Lifetime EP0688612B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9407978A FR2721545B1 (en) 1994-06-23 1994-06-23 Pile of sheet metal.
FR9407978 1994-06-23

Publications (2)

Publication Number Publication Date
EP0688612A1 EP0688612A1 (en) 1995-12-27
EP0688612B1 true EP0688612B1 (en) 2000-05-03

Family

ID=9464763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950420167 Expired - Lifetime EP0688612B1 (en) 1994-06-23 1995-06-23 Dolly block

Country Status (3)

Country Link
EP (1) EP0688612B1 (en)
DE (1) DE69516583D1 (en)
FR (1) FR2721545B1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1506578A (en) * 1920-07-16 1924-08-26 Nils E Grandahl Sheet-metal-working tool
US1441316A (en) * 1922-01-03 1923-01-09 John J Walkowe Swage or dolly block
US1783077A (en) * 1928-05-04 1930-11-25 Ferguson William Sheet-metal-bumping-out tool
US2795983A (en) * 1954-07-12 1957-06-18 Killins William Swivel dolly block
CH349939A (en) * 1957-04-08 1960-10-31 Scheidt Horst Bulging mallet
DE3312352A1 (en) * 1983-04-06 1984-10-11 Hubert 6950 Mosbach Deissler BULB HAMMER

Also Published As

Publication number Publication date
FR2721545B1 (en) 1996-08-23
DE69516583D1 (en) 2000-06-08
FR2721545A1 (en) 1995-12-29
EP0688612A1 (en) 1995-12-27

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