EP0688612A1 - Amboss - Google Patents

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Publication number
EP0688612A1
EP0688612A1 EP95420167A EP95420167A EP0688612A1 EP 0688612 A1 EP0688612 A1 EP 0688612A1 EP 95420167 A EP95420167 A EP 95420167A EP 95420167 A EP95420167 A EP 95420167A EP 0688612 A1 EP0688612 A1 EP 0688612A1
Authority
EP
European Patent Office
Prior art keywords
pile
sheet metal
curvature
curved
radius
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
EP95420167A
Other languages
English (en)
French (fr)
Other versions
EP0688612B1 (de
Inventor
Karabet Kosayan
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0688612A1 publication Critical patent/EP0688612A1/de
Application granted granted Critical
Publication of EP0688612B1 publication Critical patent/EP0688612B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 heap of sheet metal, more particularly intended for the straightening of sheets of automobile bodies.
  • a pile is a metal piece, generally made of cast iron or steel, of rather bulky shape, without however preventing its manual gripping, and intended to serve as an anvil.
  • heaps are commonly used to finalize the straightening of the sheets which it is advisable to debunk following, in particular in accidents.
  • This finalization work is carried out by means of a plurality of heaps and a hammer, the heap held in one hand serving as an anvil for the hammer strikes in order to achieve a smoothing of the bodywork after its straightening. .
  • the heaps currently used correspond to existing patents, according to research report US-A-1441316 and US-A-15O6578, have too rounded shapes and are too heavy. In principle, they are mainly used to straighten the sheets and little for deburring. Because on the flat surface to be debossed, for example, the use of heaps that are too rounded causes straightening with a thinning and expansion of the metal of the sheet metal which is absolutely to be avoided during the debossing operation figure 3 (shown for illustration a vehicle body roof under which we have presented a heap of the invention, the shape of which closely follows that of the sheet metal, and the existing heaps corresponding to patents US-A-1441316 and US-A-1506578 whose shape is too rounded and heavy and too heavy to be able to follow the shapes of existing bodywork curves). In addition, certain locations in vehicles (doors, fenders) require the use of space-saving heaps to be able to access the place to be removed, which is not the case with already existing parts.
  • the object of the invention is to overcome these drawbacks. It offers a pile of sheet metal comprising, according to a first variant of the different transverse curvatures in FIG. 1 (TAS 1 being less rounded transversely than the TAS 2) and according to a second variant, the curvatures at the ends 9, 10 and 11, 12 respectively (FIG. 1) are different.
  • the two TAS of elongated shape and of variable thickness, having at one of their ends, a slightly curved and thinned end portion, and at the other thickest end, with rounded edges.
  • Figure 1 is a schematic perspective representation of the game of two heaps according to the invention.
  • Figure 2 is a schematic cross-sectional representation of one of the two heaps in Figure 1 (more precise drawing in Figure 5 heap (2)).
  • the pile (1) is of dimension slightly less than the pile (2), although these two elements could be of the same length, is easily graspable in one hand, and has an elongated and thinned shape ending in level of its end (5) by a curved shape (radius of curvature from 150 to 190 mm and advantageously close to 170 mm).
  • 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) may vary depending on thickness.
  • the upper face (3) (from one end to another) is slightly curved in the transverse direction, as can be seen 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 has a substantially planar profile (radius of curvature of 170 mm) near the end (9) over a distance of 50 mm, then gradually bends with a radius of curvature which ranges from 150 to about 48mm.
  • the anterior end (5) is situated in an underlying plane with respect to the plane containing the base (7) of the pile (1).
  • the base (7) is composed of a perfectly flat part of length 70 mm, and of 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 in size than the pile (1), has an elongated shape ending at its end (6) with a curved and thinned shape (transverse radius of curvature of 55 mm ).
  • the other end (14) of the thickest pile (2) has two edges (11) and (12) of identical radius of curvature (10 mm).
  • the edge (14) may take on curvature depending on 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 has a substantially flat profile over a distance of 90 mm (radius of curvature greater than 250 mm), then gradually bends with a radius of curvature which varies from 64 mm to 16 mm.
  • the anterior end (6) is situated in an underlying plane with respect to the plane containing the base (8) of the pile (2).
  • the base (8) is composed of a perfectly flat part of length 116 mm, and of a rounded part joining the end (6) with a curvature of 21.5 mm.
  • the zone (6) and the base (8) converge, 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 inclination of the upper face (4) relative to the base (8) is about 2 ° which can vary depending on the change in the thickness of the pile (2).
  • the piles (1) and (2) presented in FIG. 1 have a maximum thickness of 26 to 35 mm with change in the curvatures of the edges (19, 14).
  • the dimensions of the pile (1) can be changed in length and width depending on the profession.
  • the heap (1) of smaller dimension. is more specifically intended to straighten and unhook substantially flat and frustoconical sheets bent in one direction.
  • the anterior zone (5) is intended to allow entry to the level of the narrower zones and of the bodywork or sheet metal angles.
  • the pile (2) is intended more particularly to unravel sections curved in both directions.
  • the pile (2) allows the deburring of practically all the curvatures used in the light automobile bodywork.
  • the two heaps (1) and (2) are easily adaptable to straightening and deburring work for the bodywork of heavy goods vehicles or for thicker sheets, by modifying the thickness, and for the heap (1) the width from 40 to 50 mm.
  • the heap clearance of the invention therefore makes it possible, in a simple manner, to replace the devices known to date, and above all to reduce the number of parts necessary for the straightening and deburring of the sheets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Toys (AREA)
EP19950420167 1994-06-23 1995-06-23 Amboss Expired - Lifetime EP0688612B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9407978 1994-06-23
FR9407978A FR2721545B1 (fr) 1994-06-23 1994-06-23 Tas de tôlerie.

Publications (2)

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

Family

ID=9464763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950420167 Expired - Lifetime EP0688612B1 (de) 1994-06-23 1995-06-23 Amboss

Country Status (3)

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

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1441316A (en) 1922-01-03 1923-01-09 John J Walkowe Swage or dolly block
US1506578A (en) 1920-07-16 1924-08-26 Nils E Grandahl Sheet-metal-working tool
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 (de) * 1957-04-08 1960-10-31 Scheidt Horst Ausbeulschlegel
EP0121741A2 (de) * 1983-04-06 1984-10-17 Hubert Deissler Ausbeulhammer

Patent Citations (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 (de) * 1957-04-08 1960-10-31 Scheidt Horst Ausbeulschlegel
EP0121741A2 (de) * 1983-04-06 1984-10-17 Hubert Deissler Ausbeulhammer

Also Published As

Publication number Publication date
FR2721545B1 (fr) 1996-08-23
DE69516583D1 (de) 2000-06-08
EP0688612B1 (de) 2000-05-03
FR2721545A1 (fr) 1995-12-29

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