EP0740587B1 - Maillet a debosseler et accessoires pour redresser et debosseler des toles - Google Patents

Maillet a debosseler et accessoires pour redresser et debosseler des toles Download PDF

Info

Publication number
EP0740587B1
EP0740587B1 EP95907573A EP95907573A EP0740587B1 EP 0740587 B1 EP0740587 B1 EP 0740587B1 EP 95907573 A EP95907573 A EP 95907573A EP 95907573 A EP95907573 A EP 95907573A EP 0740587 B1 EP0740587 B1 EP 0740587B1
Authority
EP
European Patent Office
Prior art keywords
hollow cylinder
cylinder
anvil
handle
hammer
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.)
Expired - Lifetime
Application number
EP95907573A
Other languages
German (de)
English (en)
Other versions
EP0740587A1 (fr
Inventor
Engelbert Gmeilbauer
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 EP0740587A1 publication Critical patent/EP0740587A1/fr
Application granted granted Critical
Publication of EP0740587B1 publication Critical patent/EP0740587B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S72/00—Metal deforming
    • Y10S72/705—Vehicle body or frame straightener

Definitions

  • the invention relates to a dent hammer for aligning and denting metal sheets, and in particular to a dent hammer which is used in body construction for repairing sheet metal damage, in particular also in inaccessible places.
  • buckling hammers are conventionally used which, depending on the type of sheet metal damage (area and depth of deformation of the dented sheet, accessibility of the dented area, etc.), have different sizes and designs and generally have the classic structure of a ( manually operated) hammer with a striking body running transversely to the handle.
  • Conventional (manually operated) dent hammers are always usable when the areas to be aligned are directly accessible and when there is space to take out and apply the blow. These conditions do not exist for a large part of the damage to body parts, so that the conventional dent hammers are either not usable at all, or the results are less satisfactory.
  • Pneumatically driven hammers are also known, in which a Impact body is set in motion by means of a motor, and which, in contrast to the conventional, manually operated buckling hammers described above, also requires only little space for the application of the blows.
  • these hammers, which are driven by a motor are often more expensive due to the drive units required and the resulting more complex construction, cannot be operated with the sensitivity required for certain bulging work, and, moreover, frequently show a strong noise development due to the drive unit.
  • a percussion hammer for rubbing ground anchors in which a cylindrical plunger is guided in a cylinder sleeve, which has a considerable weight for applying the impact force in contrast to the handle.
  • a compression spring is arranged on the plunger, which generates a recoil force when the plunger is dropped and supports the lifting of the plunger.
  • FR-A-2 600 572 also discloses a dent hammer, in which, however, the impact weight is guided on a solid rod, which carries a handle on one side and exchangeable accessories on the other side. A handle is provided for actuating the impact weight.
  • the object of the present invention is to provide an improved arrangement of stops and bolt slides in the hollow cylinder of a dent hammer in order to enable more precise and faster work and work with greater force with a generic dent hammer.
  • the dent hammer according to the invention comprises a hollow cylinder in which a hardened impact head is located.
  • This hardened impact head is connected to a handle by means of a bolt slide which penetrates the lower cylinder cover surface.
  • the handle, and thus the bolt slide and the hardened hammer head can be moved against the hollow cylinder along the cylinder axis, a stop bushing being inserted into the hollow cylinder on the lower cylinder cover surface and a stop cylinder on the upper cylinder cover surface, which act as stops to limit the movement of the handle and of the associated pusher together with the hardened impact head in the direction of the cylinder axis.
  • Interchangeable striking weights can also be attached to the handle, which provide for a larger moving mass, and thus greater transferable forces, or better handling.
  • an accessory holder On the upper cylinder cover surface facing away from the handle and the bolt slide, an accessory holder is provided for receiving interchangeable accessories, which represent the actual straightening plunger which directly exerts the force on the sheet metal part to be straightened.
  • interchangeable accessories are below differently shaped in order to offer, depending on the size and shape of a dented sheet metal area and the possibility of access to this dented sheet metal area within the overall body, an optimal contact surface for the force to be applied.
  • the handle including the associated bolt slide and hardened impact head
  • the handle can be moved relative to the hollow cylinder of the dent hammer, including the stop bush and stop cylinder, in a manner similar to a piston hand pump, e.g. B. a bicycle air pump whose piston is displaceable relative to the cylinder.
  • the lengths of the bolt slide, the hardened hammer head and the hollow cylinder are matched to each other in the dent hammer according to the invention so that the lower end of the bolt slide still protrudes somewhat from the hollow cylinder of the dent hammer according to the invention when the bolt slide together with the associated hardened hammer head up to the upper stop in the Hollow cylinder is inserted, d. H.
  • the pin slide is longer than the cylinder stroke.
  • a helical compression spring is attached outside the hollow cylinder around the shaft of the bolt slide between the handle and the stop bush, in order to provide a restoring force which drives the bolt slide out of the hollow cylinder again after being inserted into the hollow cylinder.
  • this helical compression spring for returning the pin slide is not present.
  • a straightening plunger replaceable accessory
  • the hardened striking head connected to the handle via the bolt slide rushes in the interior of the hollow cylinder towards the impact cylinder located on the upper cylinder top surface (that is to say on the side facing the straightening plunger). Since the pin slider is longer than the cylinder stroke, the insertion movement of the pin slider and the hardened hammer head into the hollow cylinder is stopped abruptly by the hardened hammer head colliding with the impact cylinder, as a result of which a large force shock is applied to the straightening plunger connected to the impact cylinder located on the upper cylinder surface and thus is transferred to the sheet metal part to be straightened.
  • the intensity of the sheet metal part to be aimed can be exerted Measure the strokes precisely. Due to the coordination of the shape of the exchangeable straightening rod with the point in the sheet to be dented, an optimal effect can thus be achieved. Furthermore, in contrast to a conventional, manually operated hammer, which is carried out with a relatively large space-consuming, sweeping hand movement, the dent hammer according to the invention takes up very little space when applying the blows. This is e.g. B. Particularly advantageous when working in the intermediate area between two metal sheets (e.g.
  • the straightening plungers of the buckling hammer according to the invention can also be inserted into relatively small cavities, the cross-sectional area of the insertion opening only has to correspond to the cross-section of the straightening plunger or the hollow cylinder of the buckling hammer according to the invention, and there is only a space requirement for taking out (ie for moving the handle including the bolt slide) in the direction of the cylinder axis, which is generally not a problem in practice should.
  • the dent hammer according to the invention shows further serious advantages. Compared to conventional, manually operated dent hammers that with a sweeping arm and hand movement, whereby large forces are exerted on the wrists, especially with heavy hammers, which on the one hand makes the use of this hammer very uncomfortable and can lead to signs of fatigue or deteriorating precision when applying several successive blows the dent hammer according to the invention is also ergonomically more favorable, since the essential force transmission takes place between the stop bushing or the stop cylinder and the hardened striking head impinging on them, and therefore there is no direct stress on the wrists.
  • the above-mentioned first embodiment of the buckling hammer according to the invention with a spiral compression spring is ergonomically advantageous, since after each blow (bump) it automatically automatically at least partially moves the pin slide into its Starting position pushes back, and the user can thus concentrate the introduction of the impact force exclusively on the insertion movement, so that a longer, fatigue-free work is possible, which results in an advantageous working rhythm.
  • the construction of the dent hammer according to the invention with the parts displaceable against the hollow cylinder not only allows forwards as described above towards the cylinder axis, but it is also possible to pull in the direction of the cylinder axis, which can be very favorable, in particular, when working on car body sheet metal parts can.
  • a straightening rod replaceable accessory
  • the straightening plunger is now wedged on or in the dented and straightened sheet metal part, with the one hand again Hollow cylinder of the dent hammer according to the invention is included, and the dent hammer is placed in its retracted state, so that the hardened hammer head located in the interior of the hollow cylinder is in the vicinity of the upper cylinder cover surface, that is to say the side facing the straightening plunger and the workpiece to be machined.
  • the other hand is then used to quickly pull on the handle and / or any striking weights attached to it, so that the bolt slide together with the hardened striking head is set in motion and the hardened striking head is placed on the lower cylinder cover surface (i.e.
  • the additional handle part that can be attached to the hollow cylinder can be moved and can continue to be used to apply the very large tensile forces required when aligning body frame parts.
  • z. B. in the form of union nuts, which limit the displacement of the attached handle part on the hollow cylinder.
  • the other parts that can be moved against the hollow cylinder namely the handle with striking weights including the bolt slide and hardened striking head, are brought into their maximum extended position (ie until they strike the stop bush located on the lower cylinder top surface).
  • the handle and / or the impact weights in order to align the dent hammer according to the invention, which is wedged in the body frame to be aligned with one of its exchangeable straightening plungers, in the desired direction of pull.
  • On both sides of the hollow cylinder one person grabs one of the two handles on the additional handle.
  • the dent hammer according to the invention thus permits precise and precisely metered impacts and bumps for a large number of occurring requirements and can be adapted to the respective circumstances by means of interchangeable accessories.
  • Fig. 1 shows a first embodiment of the dent hammer 20 according to the invention with spiral compression spring 7 and replaceable straightening plunger 98 in section.
  • the dent hammer 20 comprises a hollow cylinder 5, in the interior of which a hardened striking head 3 can be displaced along the cylinder axis.
  • the hardened impact head 3 is connected at one end to a bolt slide 4.
  • a stop sleeve 6 is attached to the lower cylinder cover surface 5a and a stop cylinder 9 to the upper cylinder cover surface 5b.
  • the accessory holder 1 for the interchangeable accessories (straightening plunger) 12 to 17 is integrated, the accessory holder 1 being attached in the form of a thread in the embodiment of the dent hammer 20 according to the invention shown in FIG. 1.
  • the end of the bolt slide 4 facing away from the hardened impact head 3 leads through an opening in the stop bush 6 to a screwed-on handle 8.
  • the stop bush 6 and the stop cylinder 9 are outside the hollow cylinder 5 up to the outer diameter of the hollow cylinder Provide 5 upstanding flanges 6a (end flange) or 9a (middle flange) and firmly connected to the hollow cylinder 5 by means of union nuts 10 and 11 screwed around the outer cylinder jacket and these flanges 6a, 9a.
  • Both the handle 8, the bolt slide 4 and the hardened hammer head 3, as well as the hollow cylinder 5, the stop bush 6, the stop cylinder 9 and the union nuts 10 and 11 each form a unit, these sub-units being movable relative to one another and similar to the parts of a bicycle air pump are interconnected. Since the bolt slide 4 with the hardened striking head 3 is longer than the hollow cylinder 5, by pressing the handle 8 impacts on the stop cylinder 9 can be exerted with the straightening plunger 98 attached in the accessory holder 1 and thus also on the workpiece. By jerky pulling on the handle 8, the striking head 3 strikes the stop bush 6, so that a backward striking (pulling) is possible.
  • the pin slide 4 is fully inserted into the hollow cylinder 5. It can be seen that the end of the bolt slide 4 facing the handle 8 projects beyond the lower end 5a of the hollow cylinder 5, which, as described above, leads to the direct collision and thus the transmission of force when striking backwards (pulling) between the displaceable relative to the hollow cylinder 5 Parts and the stop bush 6 or when striking forward (bumping) between the parts which are displaceable relative to the hollow cylinder 5 and the stop cylinder 9 by means of the hardened firing pin 3.
  • the spiral compression spring 7, which is wound outside the hollow cylinder 5 between the handle 8 and the stop bush 6 around the shaft of the bolt slide 4, ensures at least partially automatic resetting of the bolt slide 4 inserted into the hollow cylinder 5 after each impact (impact).
  • Fig. 2 shows a second embodiment of the dent hammer according to the invention without a spiral compression spring and without a screwed-on accessory (straightening plunger) in section, the handle 8 being provided with two additional striking weights 50 which, as described above, cause additional forces on the hammer strikes due to their mass Straighteners (not shown) can exercise.
  • the additional striking weights 50 attached to the handle 8 are designed such that they are detachably fastened so as to obtain a lighter dent hammer if required.
  • the screwed union nut 11 can be easily removed, and then the additional handle part 51 can be attached as a counterweight for balancing the parts that move when struck (handle 8 together with additionally attached impact weights 50, bolt slide 4, hardened impact head 3).
  • the additional handle part 51 serving as a counterweight can be clamped between the union nuts 10 and 11.
  • the additional handle part 51 on the hollow cylinder between the union nuts 10 and 11 serving as a stop is free slidable.
  • the additional handle part 51 is shown with two handles (crossbars) 18 which are screwed into the additional handle part 51 in bores 19 provided therefor.
  • the auxiliary handle part 51 preassembled in this way is now pushed onto the hollow cylinder 5 of the dent hammer 20 according to the invention shown in FIG. 2.
  • the cross bars 18 allow two people to access them.
  • FIG. 6 shows the use of this additional handle part 51 for pulling in connection with the buckling hammer 20 shown in FIG. 2 and the straightening plunger 12 shown in FIG. 3a.
  • 3a-3f show accessories (straightening plungers) which can be fastened in the accessory holder 1 of the buckling hammer 20 according to the invention shown in FIGS. 1 and 2.
  • These are, on the one hand, spherical or hemispherical and flattened straightening plungers 16, 14, 15 (FIGS. 3e, 3c, 3d) or also a straightening plunger (setting tool) 17 provided with a more or less truncated attack surface 62 (setting tool) 17 ( 3f).
  • These interchangeable additional tools can all be used for thrusting (forward beating), the handle 8 of the dent hammer 20 being jerkily inserted into the hollow cylinder 5. Depending on the type of sheet metal damage present, the most suitable additional tool is selected.
  • these interchangeable accessories can also be additional tools that are angled towards the front and that can be used for pulling (striking backwards) or for both pulling and pushing.
  • 3b shows a screw-on straightening spoon 13, which is provided with a flattened, spoon-shaped area 41 at its front end, which is angled from the axis of the hollow cylinder 5, and which is for bulging the side area of a car door, which is not directly accessible because of the inner panel, screwed into the accessory holder 1 provided with a corresponding thread and placed behind the inner panel at the point to be dented.
  • the flattened, spoon-shaped area 41 of the straightening spoon 13 can, however, also be placed in the interior of a sheet metal area to be driven and tilted therein. If you then pull the handle 8 of the dent hammer 20 out of the hollow cylinder in a jerky manner, you can briefly exert very high tensile forces on the sheet metal with the straightening spoon 13, thus driving up the deformation of the sheet metal.
  • the straightening plunger 12 shown in FIG. 3a is also suitable for combined pushing and pulling on deformed body panel parts.
  • the straightening plunger 12 is screwed onto the accessory holder 1 with its thread 60 and behind it with its multiple impact body 36 running transversely to the shaft 61 attached to the flare.
  • the damage is remedied by pulling on the handle 8.
  • 7a to 7d show different views of such a straightening plunger 12.
  • FIG. 7a shows a view in which the viewing plane intersects the shaft 61 of the straightening plunger 12.
  • 7b shows the view rotated by 90 ° about the axis n of the substantially cylindrical multi-impact body 36
  • FIGS. 7c and 7d the views from the side corresponding to FIGS.
  • the typical shape of the multi-impact body 36 which is transverse to the angled shaft 61, can be thought of as follows: from a circular cylinder, which is transverse to the shaft 61 (the shape of which is indicated in FIG. 7a by points A, B, C, D) becomes one from the intersection M of the axis m with the plane p (which is parallel to the tangent plane to the cylinder jacket and intersects it), which runs parallel to the direction of view in FIG.
  • first movement material removed ie the area between points M and O is removed from the circular cylinder.
  • second movement symmetrical to the first with respect to the axis m Moved material removed.
  • the body thus obtained is rotated 90 ° along the cylinder axis n.
  • Material is then removed in a third movement, starting from the plane q (which is perpendicular to the plane p) and running parallel to the viewing direction in FIG. 7b and in the vicinity of the cylinder cover surfaces a, b towards the axis m.
  • Material is then removed in a fourth movement symmetrical to the third movement with respect to the axis m.
  • FIG. 4 and 5 show a dent hammer 20 according to the invention according to FIG. 2 with additionally screwed-on impact weights 50 and with a screwed-on setting tool 17 or screwed-on straightening plunger 12, the dent hammer 20 once for pushing (forward striking - FIG. 4) and once for pulling (striking backwards - Fig. 5) is used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Automatic Assembly (AREA)
  • Adornments (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Claims (7)

  1. Maillet à débosseler des tôles, avec une tête de frappe trempée qui, au moyen d'une broche coulissante, peut être déplacée axialement entre deux butées dans un cylindre creux, la butée avant présentant un porte-accessoire pour des accessoires interchangeables et la broche coulissante portant une poignée à l'extrémité opposée à la tête de frappe,
    caractérisé en ce que la butée avant (1) s'engage dans le cylindre creux (5) par un cylindre de butée (9), et un collet (9a) formé sur ce dernier est pressé par un écrou-raccord (11) contre l'une (5b) des faces frontales du cylindre creux,
    en ce que la butée arrière s'engage dans le cylindre creux par une douille de butée cylindrique oblongue (6), un collet de raccordement (6a) formé sur la douille de butée étant pressé par un autre écrou-raccord (10) contre l'autre face frontale (5a) du cylindre creux,
    en ce qu'un ressort de pression en boudin (7) est disposé entre la poignée (8) et l'autre écrou-raccord (10) sur la broche coulissante (4),
    et en ce que la longueur de la tête de frappe (3) et de la broche coulissante jusqu'à la poignée (8) est plus longue, environ de la longueur du ressort de pression en boudin comprimé, que la distance entre le cylindre de butée et la face frontale arrière de l'autre écrou-raccord.
  2. Maillet à débosseler avec une tête de frappe trempée qui, au moyen d'une broche coulissante, peut être déplacée axialement entre deux butées dans un cylindre creux, un accessoire pouvant être fixé sur la butée avant et la broche coulissante portant une poignée à l'extrémité opposée à la tête de frappe,
    caractérisé en ce que la butée avant (1) conçue comme porte-accessoire s'engage par un cylindre de butée (9) dans le cylindre creux (5), et est pressée par un collet (9a), au moyen d'un écrou-raccord, contre la face frontale du cylindre creux (5),
    en ce que la butée arrière s'engage par une douille de butée cylindrique (6) dans le cylindre creux (5), la douille de butée étant pressée par un collet terminal (6a), au moyen d'un écrou-raccord (10), contre la face frontale du cylindre creux (5),
    en ce qu'une poignée supplémentaire (51) est emmanchée sur le cylindre creux (5) du maillet à débosseler (20) et peut être déplacée sur ce dernier,
    et en ce que la poignée supplémentaire (51) est pourvue d'éléments de préhension (18).
  3. Maillet à débosseler selon la revendication 2, caractérisé en ce qu'un manchon (99) est emmanché avec la poignée supplémentaire (51) sur le cylindre creux (5) du maillet à débosseler (20),
    et en ce que la poignée supplémentaire (51) est ainsi bloquée entre l'écrou-raccord avant (11) et l'écrou-raccord arrière (10) de telle sorte qu'elle ne peut plus être déplacée par rapport au cylindre creux.
  4. Maillet à débosseler selon la revendication 1 ou 2, caractérisé en ce que des poids de frappe interchangeables (50) sont fixés sur la poignée (8).
  5. Maillet à débosseler selon une ou plusieurs des revendications 1 à 4, caractérisé en ce qu'un accessoire qui est installé dans le porte-accessoire (1) présente une allure coudée en éloignement de l'axe du cylindre creux (5) du maillet à débosseler (20).
  6. Maillet à débosseler selon la revendication 5, caractérisé en ce que la partie d'usinage coudée, opposée au porte-accessoire (1), se termine par une partie en forme de cuillère (41) s'étendant essentiellement dans la direction de la région de la tige (61) de l'accessoire (13) qui est coudée par rapport à l'axe du cylindre creux (5).
  7. Maillet à débosseler selon la revendication 5 ou 6, caractérisé en ce que la partie d'usinage coudée, opposée au porte-accessoire (1), se termine par un corps de frappe multiple (36) dépassant de part et d'autre transversalement à la tige (61) de l'accessoire (12), corps dont la forme s'obtient, à partir d'un cylindre circulaire (A, B, C, D) dépassant symétriquement de part et d'autre de la tige (61), par le fait qu'on enlève du matériau, par un premier mouvement symétrique par rapport à la tige (61), depuis le centre (M) du cylindre circulaire (A, B, C, D) en direction des faces de recouvrement (a, b) du cylindre, puis qu'on enlève du matériau, par un autre mouvement perpendiculaire au premier mouvement et symétrique par rapport à la tige (61), depuis le centre (M) du cylindre circulaire (A, B, C, D) en direction des faces de recouvrement (a, b) du cylindre.
EP95907573A 1994-01-21 1995-01-20 Maillet a debosseler et accessoires pour redresser et debosseler des toles Expired - Lifetime EP0740587B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4401717A DE4401717C2 (de) 1994-01-21 1994-01-21 Ausbeulhammer für Bleche
DE4401717 1994-01-21
PCT/EP1995/000207 WO1995019855A1 (fr) 1994-01-21 1995-01-20 Maillet a debosseler et accessoires pour redresser et debosseler des toles

Publications (2)

Publication Number Publication Date
EP0740587A1 EP0740587A1 (fr) 1996-11-06
EP0740587B1 true EP0740587B1 (fr) 1997-11-19

Family

ID=6508398

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95907573A Expired - Lifetime EP0740587B1 (fr) 1994-01-21 1995-01-20 Maillet a debosseler et accessoires pour redresser et debosseler des toles

Country Status (7)

Country Link
US (1) US5730023A (fr)
EP (1) EP0740587B1 (fr)
AT (1) ATE160302T1 (fr)
DE (1) DE4401717C2 (fr)
ES (1) ES2109811T3 (fr)
GR (1) GR3025452T3 (fr)
WO (1) WO1995019855A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020112516A1 (en) * 2001-10-22 2002-08-22 James Akins System For Removing Dents From Metal
DE20203548U1 (de) * 2002-03-05 2003-05-15 Gmelin & Moll Werkzeug Gmbh Druckluft-Zughammer
DE10320512A1 (de) * 2003-04-28 2004-11-18 Adolf Würth GmbH & Co. KG Vorrichtung zum Entfernen von Beulen
US10022762B2 (en) * 2014-11-14 2018-07-17 Dentcraft Tools Limited Partnership Dent repair system
US9908161B1 (en) 2017-08-24 2018-03-06 Honda Motor Co., Ltd. Defect repair tool and method of using the same
CN108246834A (zh) * 2018-01-16 2018-07-06 芜湖市元山机械制造有限公司 一种前车架箍带校正台
USD982994S1 (en) * 2022-07-18 2023-04-11 Hefei Bestman Electronic Commerce Co., Ltd. Car dent repair tool

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1783077A (en) * 1928-05-04 1930-11-25 Ferguson William Sheet-metal-bumping-out tool
US2701359A (en) * 1952-02-29 1955-02-08 Asbury Edward Marcus Hand tool
DE1652621A1 (de) * 1968-02-20 1971-04-22 Peter Adermann Verfahren und Vorrichtung zum Ausbeulen von Blechen,insbesondere Karosserieblechen
US3519087A (en) * 1968-12-18 1970-07-07 Silvio Santi Impact tool
US3735822A (en) * 1971-03-12 1973-05-29 Chamberlain W H Manually actuated jack hammer
US4122699A (en) * 1977-09-06 1978-10-31 Logsdon Cletus R Tool for removing dents from sheet metal
US4235090A (en) * 1978-08-29 1980-11-25 Wightman Lawrence W Dent pulling tool
US4429562A (en) * 1981-04-07 1984-02-07 Hultquist John V Auto body dent removing puller and anchor
US4502317A (en) * 1981-04-07 1985-03-05 Hultquist John V Dent pulling tool
FR2600572A1 (fr) * 1986-06-27 1987-12-31 Fragione Michel Outil a force musculaire avec multiplication de puissance pour le traitement a froid des metaux par succession de chocs
US4703549A (en) * 1986-07-21 1987-11-03 Kristie Products Inc. Double-acting pinch-free impact tool
US4753104A (en) * 1986-11-03 1988-06-28 Body Buddy, Inc. Dent removing tool and method
DE8900909U1 (fr) * 1989-01-27 1989-03-16 Strahm, Anton
US5461900A (en) * 1993-03-08 1995-10-31 Shamus Vehicle body repair tool
US5329802A (en) * 1993-03-23 1994-07-19 Nunez Delio A Automatic slide hammer attachment

Also Published As

Publication number Publication date
DE4401717C2 (de) 1997-08-21
US5730023A (en) 1998-03-24
GR3025452T3 (en) 1998-02-27
ES2109811T3 (es) 1998-01-16
ATE160302T1 (de) 1997-12-15
WO1995019855A1 (fr) 1995-07-27
DE4401717A1 (de) 1995-07-27
EP0740587A1 (fr) 1996-11-06

Similar Documents

Publication Publication Date Title
EP1716260B1 (fr) Procede d'augmentation de la limite de fatigue, notamment de la resistance a la flexion alternee et de la resistance a la torsion alternee d'arbres de vilebrequins
EP0452543B1 (fr) Outil à percussion pneumatique
DE4403526A1 (de) Bolzenschießgerät mit einer Sicherheitsvorrichtung zum Verhüten zufälligen Abfeuerens
DE3438742A1 (de) Verfahren zur steigerung der dauerfestigkeit von bauteilen unterschiedlicher formgebung
DE2540838C2 (de) Elektropneumatischer Hammer
EP0948418B1 (fr) Procede d'assemblage mecanique
EP0740587B1 (fr) Maillet a debosseler et accessoires pour redresser et debosseler des toles
EP0663270B1 (fr) Marteau à percussion rotative et/ou rectiligne
DE4414342A1 (de) Handgerät zum Abtragen von Oberflächen
DE3417735C2 (fr)
DE102016101675B4 (de) Hammereinrichtung
DE2800025A1 (de) Federschlagwerkzeug mit motorantrieb
DE1291299B (de) Schlagwerkzeug
DE3239174A1 (de) Schlagwerkzeug
DE19701088A1 (de) Vorrichtung zum Durchsetzfügen und/oder Setzen von Stanznieten
DE4036656C1 (en) Vehicle bodywork panel mfr. - involves toggle-action punch working onto die
DE3231902C2 (fr)
DE193276C (fr)
DE3402728C2 (de) Antrieb für das Schlagwerk eines Bohr- oder Schlaghammers
DE2750987C3 (de) Vorrichtung zum Auffangen eines frei fliegenden Schlagkörpers von pneumatisch arbeitenden Schlag- oder Drehschlaghämmern
DE3121124A1 (de) Spreizbackenwerkzeug
DE2438938A1 (de) Motorisch angetriebener schlaghammer
EP4112230A1 (fr) Marteau de sécurité
DE359818C (de) Sohlenvorlocher mit zwei Rueckholfedern
DE64955C (de) Maschine zum Anspitzen von Schienennägeln mit zwei Paar Hämmern

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19960719

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH ES FR GB GR IT LI NL

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19970117

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH ES FR GB GR IT LI NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19971119

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19971119

REF Corresponds to:

Ref document number: 160302

Country of ref document: AT

Date of ref document: 19971215

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATENTANWALTSBUERO EDER AG

Ref country code: CH

Ref legal event code: EP

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19971121

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2109811

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3025452

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19990125

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 19990129

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000131

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000131

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000427

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20000529

Year of fee payment: 6

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010118

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010120

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010120

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20010130

Year of fee payment: 7

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020930

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST