EP0218988A1 - Pince pour déformer la tôle - Google Patents

Pince pour déformer la tôle Download PDF

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Publication number
EP0218988A1
EP0218988A1 EP86113467A EP86113467A EP0218988A1 EP 0218988 A1 EP0218988 A1 EP 0218988A1 EP 86113467 A EP86113467 A EP 86113467A EP 86113467 A EP86113467 A EP 86113467A EP 0218988 A1 EP0218988 A1 EP 0218988A1
Authority
EP
European Patent Office
Prior art keywords
pliers
individual
jaw
flank
offset
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
EP86113467A
Other languages
German (de)
English (en)
Other versions
EP0218988B1 (fr
Inventor
Karl Weidner
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.)
Adolf Wuerth GmbH and Co KG
Original Assignee
Adolf Wuerth GmbH and Co KG
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 Adolf Wuerth GmbH and Co KG filed Critical Adolf Wuerth GmbH and Co KG
Publication of EP0218988A1 publication Critical patent/EP0218988A1/fr
Application granted granted Critical
Publication of EP0218988B1 publication Critical patent/EP0218988B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/02—Jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools

Definitions

  • the invention relates to a sheet metal setting pliers with two complementary offset jaws, which at one end delimit a workpiece insertion mouth of the tong opening and are provided on mutually movable tong parts, of which a working jaw with its offset pressure surface is movably mounted against the offset pressure surface of a counter jaw and the pressure surfaces thereof have at least one offset individual surface and a recessed individual surface adjoining this in the longitudinal direction via a shoulder, each of which connects on both sides to lateral flank surfaces of the pliers jaws lying transversely to them.
  • Known settling pliers of this type are so wide and provided with flank or side faces adjoining the printing surfaces at right angles that they bring poor settling results or even damage the sheet in the area of narrow curvatures in the sheet metal workpiece, as can be formed for example by beads.
  • Such beads or narrow curvatures often before, a high accuracy of the position of the sheet attached to the offset sheet metal edge is desired in their area.
  • the invention has for its object to provide a sheet metal pliers of the type mentioned, which also ensures precise work in the area of narrow curvatures of the sheet metal workpiece with simple training.
  • the width of the contact surface between at least one pair of cooperating individual surfaces is smaller than the width of the commonly occurring beads, in particular less than 10 mm.
  • the object of the invention can instead or in addition also be achieved in that the angles between at least one individual surface and the associated flank surfaces are greater than 90 °, that is to say the flank surfaces are included in the settling-bending process in such a way that they conform to the narrow curvature approximately follow the workpiece or slightly stretch the narrow curvature temporarily and produce laterally tapering sections of the offset bend.
  • the object according to the invention can finally also be achieved in that the flank surfaces of at least one pliers jaw converge approximately to the transition into at least one individual surface, such that the individual surface is narrower than the adjacent region of the pliers jaw and, despite the relatively wide design of the pliers jaw, an intervention in the workpiece curvature, in particular in the concave region of the workpiece curvature, over a relatively small width is guaranteed.
  • the inventive design of the pliers jaws or the individual surfaces and the flank surfaces ensures particularly gentle processing of the sheet metal workpiece that maintains the original shape in such a way that the offset edge follows the original shape of the sheet very precisely and continuously.
  • Both associated flank surfaces are expediently of approximately the same mirror-symmetrical design, preferably at least one individual surface, in particular at least one pliers jaw being designed symmetrically with respect to a central plane lying between the flank surfaces, so that work can be carried out equally well in both directions and the pliers jaws can be easily manufactured .
  • the set-off pliers are designed in such a way that the width of the workpiece edge set down with them is approximately 17 mm, which is particularly advantageous if the sheet metal part to be fastened overlapping on the set-off edge by gluing with an epoxy adhesive or the like to be attached.
  • the setting height is expediently chosen to be about two tenths of a millimeter larger than the sheet thickness of the sheet to be attached, so that the adhesive layer can be accommodated in such a way that the outer surface of the separated sheet piece and the attached sheet piece are flush or merge into one another.
  • the stop is expediently designed so narrow that it can also penetrate deeply into protruding corners on the sheet metal edge of the workpiece in the manner of a bearing cutting edge and nevertheless an orientation of the pliers opening or the jaws of the pliers at least approximately perpendicular to the sheet edge is possible.
  • the stop advantageously has converging flank surfaces which are approximately symmetrical in cross section through the pliers opening to the longitudinal center plane of at least one individual surface, as a result of which an unimpeded alignment of the pliers jaws with respect to the workpiece can be carried out particularly easily.
  • the working jaw for example in the form of a plate, can be mounted directly on the associated pliers part without the use of a separate jaw carrier, for which purpose it expediently has a much greater height than the counter jaw.
  • the work jaw can only be removed from the set-off pliers by loosening a hinge pin carrying it.
  • the working jaw also forms the jaw carrier which is articulated on the associated pliers part.
  • a hand-held pliers which has two pliers parts 2, 3 articulated to one another in the manner of two-armed levers, which at the ends of their longer lever arms with handles and Area of the ends of their angled shorter lever arms with cooperating jaws, namely a counter jaw 4 and a work jaw 5 are provided.
  • the counter jaw 4 is clamped with a flat fastening surface against a flat clamping surface 6 on the inside of the head leg 7 of the otherwise essentially straight-nosed pliers part 2 with a screw 8 which passes through this head leg 7 from its outside or is accessible from this outside for actuation is and engages in an internal thread of the counter jaw 4.
  • the working jaw 5 is articulated as a one-piece, plate-shaped structure directly in the forked end of the head leg 9 of the pliers part 3, in which the pliers part 2 is also axially secured with a section which is offset in thickness intervenes.
  • the pliers parts 2, 3 are articulated to one another in the region of the head leg 9 with pliers bolts 10 passing through them.
  • the working jaw 5 is mounted directly adjacent to the inner longitudinal edge 11 of the leg of the pliers part 2 carrying the handle and axially secured between the fork arms of the head leg 9 by means of a hinge pin 12 parallel to the pliers pin 10, so it has the same thickness as the thickness of the shoulder leg 9 engaging section of the pliers part 2.
  • the working jaw 5 When the pliers are open, the working jaw 5 rests with a longitudinal edge surface 13 of its plate shape which is constantly constant in thickness against the longitudinal edge 11 of the return spring 14 which acts under pressure between the gripping arms of the pliers.
  • the pliers opening 15 between the pressure and working surfaces of the pliers jaws 4, 5 is opened for inserting a workpiece from the free ends of the head legs 7, 9, the associated ends of the pliers jaws 4, 5 and the associated end of the pliers opening 15 being one Workpiece insertion mouth 16 limited.
  • the work jaw 5 moves with a slight lift from the longitudinal edge 11 in the direction of the counter jaw 4 until the pliers jaws are supported on one another, possibly with the interposition of a sheet. Due to its articulated mounting and its low clearance from the longitudinal edge 11, the work jaw 5 can align itself with respect to the counter jaw 4 within narrow limits. In the longitudinal direction of the pliers opening 15 or the pressure surfaces of the pliers jaws 4, 5, they have the same extent.
  • a workpiece stop 17 is provided at a distance from the pliers jaws 4, 5, which is formed in one piece with the pliers part 2 and in the transition region between the head leg 7 and the handle leg thereof Pliers part 2 lies.
  • the pliers opening 15 facing, flat stop surface 18 of the stop 17 lies in a plane perpendicular to the common central plane 20 of the two jaws 4, 5, which passes approximately as an axial plane through the pliers bolt 10, the width of the stop surface 18 being of the order of the thickness of the Plate body of the jaw 5 is.
  • the stop surface 18 could also be formed by an essentially sharp edge surface or an edge surface that is curved in the shape of a partial circle.
  • flank surfaces 19 which converge up to the stop surface 18 and are mirror-symmetrical with respect to the central plane 20, which are at an angle of approximately 90 ° to one another and pass through to the side surfaces of the handle part 2, the thickness of which in this area is slightly less than three times the width of the stop surface 18.
  • the stop surface 18 extends over the width of a groove-shaped incision adjacent to the inside of the head leg 7, the groove base of which it forms, the groove width being greater than the width of the open pliers opening 15.
  • the pressure or working surfaces of the two jaws 4, 5 are each formed by two individual surfaces 21 to 24 which are offset from one another by the offset height of, for example, approximately three times the sheet thickness to be processed, and to each other and to axial planes of the joint axes formed by the joint pins, which lie opposite one another in pairs, have different widths and each connect to one another in the longitudinal direction of the tong opening 15.
  • Each jaw 4 or 5 has a single surface 21 or 23 offset by the heel height and an individual surface 22 or 24 set back by the heel height.
  • the adjoining the insertion mouth 16 or this delimiting individual surfaces, which are used in particular to hold or clamp the workpiece when setting down, are formed by a pre-offset individual surface 21 of the counter jaw 4 and a recessed individual surface 24 of the work jaw 5.
  • the two other individual surfaces 22, 23, which are used in particular for the bending or cranking of the workpiece edge reaching as far as the stop surface 18, are formed by a recessed individual surface 22 of the counter jaw 4 and a forward offset individual surface 23 of the work jaw 5.
  • the length of all the individual surfaces is approximately the same, the front individual surface 24 in the working jaw 5 being so much shorter than the rear individual surface 23 that the setting surfaces 25, 26, which are essentially perpendicular to the individual surfaces, are at a distance 27 from one another when the pliers are closed opposite, which is at least as large as the thickness of the sheet to be processed.
  • the width of the working surfaces 21 to 24 is smaller than the width or thickness of the associated pliers jaw 4 or 5, the respectively offset individual surface 21 or 23 being narrower than the associated recessed individual surface 22 or 24.
  • the contact area between associated individual areas is determined by the narrower individual area.
  • the offset individual surface 21 or 23 is in each case at least slightly narrower or at most the same width as the opposite recessed individual surface 22 or 24, the size difference in the rear individual surfaces 22, 23 being greater than in the front individual surfaces.
  • Each individual surface 21 to 24 is delimited by two side flank surfaces 28 to 31 lying mirror-symmetrically to the central plane 20, the two mutually associated flank surfaces each diverging away from the associated single surface in view of the insertion mouth 16.
  • flank surfaces can also be S-shaped in cross-section, that is to say with an opposite curvature, curved or flat.
  • the flank surfaces 28 to 31 are partially convexly curved in cross section, such that all flank surfaces 28, 29 and 30, 31 of the respective jaw 4, 5 are curved around a single axis of curvature 32 and 33, respectively, that is to say to the Axes of curvature run parallel to the lateral surface lines of the flank surfaces of each individual surface in a straight line over their extension and that the corresponding surface lines of the flank surfaces 29, 31 of the set-back individual surfaces 22, 24 run straight over approximately the entire individual jaw or both individual surfaces.
  • flank surfaces 28 to 31 connect to the associated individual surface 21 to 24 at an obtuse angle of more than 90 °, this angle being approximately 150 ° in the case of the offset individual surfaces and in the case of the recessed individual surfaces is about 130 °.
  • the flank surfaces 28, 29 of the counter jaw 4 merge between the individual surface 22 and the fastening surface 34 associated with the clamping surface 6 into relatively low, flat side surfaces 35 reaching to the fastening surface 34, in the region of which the counter jaw 4 has the same width as the head leg 7.
  • the flank surfaces 30, 31 of the work jaw 5 merge tangentially into the side surfaces 36 of the work jaw 5 formed by the large outer plate surfaces.
  • flank surfaces 28 to 31 connect to the associated individual surface 21 to 24 at the named angle via an essentially sharp, that is to say non-rounded corner edge 38 to 40, which is slightly ge, for example, by being pulled off can be broken.
  • the flank surfaces 28 to 31 act as pressure and work surfaces, depending on the curvature of the workpiece, for example in the region of a bead, but they only act in an exciting manner on the workpiece in the region of the individual surfaces 21, 24 due to the almost identical width, while the fact that the individual surface 23 is significantly narrower than the individual surface 22, cooperate in this area in such a way that they produce portions of the settling bend that run out on both sides of the contact surface between these individual surfaces.
  • the single surface 23 with a width of just under 4 mm and a length of approximately 10 mm is the narrowest and smallest individual surface which interacts with the widest and largest individual surface 22, which expediently has a width and length of approximately 11 mm in each case.
  • the other two interacting individual surfaces 21, 24 are approximately 7 mm approximately in the middle between the widths of the individual surfaces 22, 23, the individual surface 24 having approximately 12 mm having the greatest length of all individual surfaces, while the individual surface 21 is approximately 11 mm long the same length as the individual surface 22.
  • flank surfaces in the area of at least one of the individual surfaces 21, 24 that do not converge but rather parallel or perpendicular to the associated individual surface, in which case at least one jaw of the pliers in this region is reduced in width or thickness so that it can intervene well in the bead size for which the pliers are intended.
  • the front and rear edges 41 and 42 of the counter jaw 4 or the like are 45 ° chamfered, rounded. relatively abraded, while the corresponding edges 43, 44 of the work jaw 5 are only slightly broken.
  • the width or thickness of the working jaw 5 having a through-bore for the hinge pin 12 is only slightly larger than the width of the individual surface 24 or 21 at approximately 8 mm.
  • the height of the setting surfaces 25, 26 is chosen to be approximately 1.7 mm, for example that the paragraph made in sheet metal has a height that corresponds to the sheet thickness to be processed plus the thickness of an adhesive layer for sheet metal bonding.
  • the counter jaw 4 which can be produced in a simple manner by attaching flats from a round steel piece of about 16 mm in diameter in such a way that the peripheral surface of the round steel piece forms the flank surfaces, is apart from the screw 8 also by a split pin lying in the area of the other individual surface 47 or the like secured releasably or interchangeably with respect to the associated head leg 7.
  • the screw 8 can lie in the region of the front individual surface 21 or, as shown in FIG. 5, in the region of the rear individual surface 22. Both the screw 8 and the split pin 47 are expediently provided in the central plane 20, the associated bores being able to penetrate the individual surfaces.
  • the counter jaw 4 rests on a shoulder shoulder adjoining the clamping surface 6 on the inner leg surface of the head leg 7, so that it is precisely aligned in the longitudinal direction of the pressure or working surfaces.
  • This shoulder surface lies in the plane the longitudinal edge 11.
  • the width of the counter jaw 4 is approximately twice as large as the width or thickness of the working jaw 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Edible Seaweed (AREA)
EP86113467A 1985-10-03 1986-10-01 Pince pour déformer la tôle Expired EP0218988B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3535302 1985-10-03
DE19853535302 DE3535302A1 (de) 1985-10-03 1985-10-03 Blech-absetzzange

Publications (2)

Publication Number Publication Date
EP0218988A1 true EP0218988A1 (fr) 1987-04-22
EP0218988B1 EP0218988B1 (fr) 1989-12-20

Family

ID=6282655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86113467A Expired EP0218988B1 (fr) 1985-10-03 1986-10-01 Pince pour déformer la tôle

Country Status (4)

Country Link
EP (1) EP0218988B1 (fr)
DE (2) DE3535302A1 (fr)
DK (1) DK161125C (fr)
NO (1) NO164221C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1052054A1 (fr) * 1998-11-27 2000-11-15 Super Line Co., Ltd. Procede de reparation de metal en feuille, outil de reparation de metal en feuille et dispositif de fixation pour element en feuille
WO2022002532A1 (fr) * 2020-06-29 2022-01-06 Man Truck & Bus Se Procédé de réparation pour un élément de carrosserie et outil de dépose à mécanisme à broche

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT14256U1 (de) * 2014-02-18 2015-07-15 Wutzl Roland Jürgen Mas Werkzeug zum Biegen eines Kantenbereiches eines Bleches oder eines Formbleches

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3357460A (en) * 1965-10-12 1967-12-12 Gawura Eugene Wire forming implement
US4014226A (en) * 1976-05-04 1977-03-29 The Raymond Lee Organization, Inc. Pliers with modified jaws for use in auto body repair

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8217653U1 (de) * 1982-06-19 1982-09-23 Rau, Franz, 8900 Augsburg Handwerkzeug zum abkanten von blech

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3357460A (en) * 1965-10-12 1967-12-12 Gawura Eugene Wire forming implement
US4014226A (en) * 1976-05-04 1977-03-29 The Raymond Lee Organization, Inc. Pliers with modified jaws for use in auto body repair

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1052054A1 (fr) * 1998-11-27 2000-11-15 Super Line Co., Ltd. Procede de reparation de metal en feuille, outil de reparation de metal en feuille et dispositif de fixation pour element en feuille
EP1052054A4 (fr) * 1998-11-27 2003-04-09 Super Line Co Ltd Procede de reparation de metal en feuille, outil de reparation de metal en feuille et dispositif de fixation pour element en feuille
WO2022002532A1 (fr) * 2020-06-29 2022-01-06 Man Truck & Bus Se Procédé de réparation pour un élément de carrosserie et outil de dépose à mécanisme à broche

Also Published As

Publication number Publication date
DE3667621D1 (de) 1990-01-25
NO863923D0 (no) 1986-10-02
EP0218988B1 (fr) 1989-12-20
DE3535302A1 (de) 1987-04-09
DK474186D0 (da) 1986-10-03
NO164221C (no) 1990-09-12
DK161125C (da) 1991-11-25
NO863923L (no) 1987-04-06
DK474186A (da) 1987-04-04
NO164221B (no) 1990-06-05
DK161125B (da) 1991-06-03

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