EP0711632A1 - Moyens de serrage - Google Patents

Moyens de serrage Download PDF

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Publication number
EP0711632A1
EP0711632A1 EP95116316A EP95116316A EP0711632A1 EP 0711632 A1 EP0711632 A1 EP 0711632A1 EP 95116316 A EP95116316 A EP 95116316A EP 95116316 A EP95116316 A EP 95116316A EP 0711632 A1 EP0711632 A1 EP 0711632A1
Authority
EP
European Patent Office
Prior art keywords
stop
arm
clamping device
clamping
plates
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.)
Withdrawn
Application number
EP95116316A
Other languages
German (de)
English (en)
Inventor
Detlef Ulle
Dirk Hablick
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.)
DESTACO Europe GmbH
Original Assignee
DE STA CO Metallerzeugnisse GmbH
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 DE STA CO Metallerzeugnisse GmbH filed Critical DE STA CO Metallerzeugnisse GmbH
Publication of EP0711632A1 publication Critical patent/EP0711632A1/fr
Withdrawn legal-status Critical Current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
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • 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
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/12—Arrangements for positively actuating jaws using toggle links

Definitions

  • the invention relates to a clamping device made of forged individual parts, consisting of base plates with a pivot arm mounted therebetween and for limited positional attachment of a clamping arm and of external actuators which are articulated to the pivot arm via a towing member.
  • clamping devices are well known and in use, so that no special printed evidence is required in this regard.
  • Their drop-forged and "burnished" individual parts as well as hardened bearing bushes allow the use of such clamping devices on heavy-duty milling and welding devices, e.g. in automotive engineering and for closing foam molds.
  • Due to the design of such clamping devices they can be adapted to the requirements of the respective clamping problem, i.e. the clamping arm, handle and selected type of fastening can be optimally adapted to the working conditions in the required positions by welding or screwing on the swivel arm and on the actuators.
  • the clamping arm, handle and selected type of fastening can be optimally adapted to the working conditions in the required positions by welding or screwing on the swivel arm and on the actuators.
  • due to inevitable inaccuracies of the forgings but also due to the welding of the tension arm to the swivel arm, corresponding inaccuracies can result with regard to an exact dead center position.
  • Stops defining the end position or over-center position of the tensioning arm which can also be adjustable, are known in principle, for example according to EP-AO 317 924.
  • this is a tensioning device of a different type with a completely different one, exclusively between the fork parts Headpiece mounted and movable adjusting mechanism, while in the present case there are clamping devices in which the actuators for the swivel arm have to slide past the base plates on the outside, whereby depending on the welding position of the tension arm on the swivel arm, the case can occur that the front, tension arm side, anyway relatively narrow part of the base plates are at least partially covered with must, that is exactly the area that is used in clamping devices of the above type for attaching stops that do not consist of forged individual parts.
  • the invention is therefore based on the object to ensure with simple means on such clamping devices formed from forged parts of the type mentioned that the self-locking over-dead center position is guaranteed despite the above inevitable inaccuracies in the manufacture, the pivoting range of the actuators is not is hindered and the elements for such a setting remain easily accessible from the outside.
  • a clamping device of the type mentioned according to the invention in that between the base plates on the clamping arm side an adjustable stop is arranged, the stop surface defines the closed position of the clamping arm and under the swivel arm between its free end and its articulation for Towing element is arranged, the actuating means accessible from the outside being arranged at the end of the abutment opposite the abutment surface at the central region outside the actuating element swiveling region.
  • stops on clamping devices of other types are known in principle, but they do not serve to compensate for inaccuracies in the above sense, since there are practically no such inaccuracies on such clamping devices and thus the assignment of such stops can take place at geometrically precisely defined points.
  • the actuating means do not act directly as a stop, but as actuating means for a stop, whereby the actuating means are removed from the sliding area of the actuators.
  • the actual stop surface of the stop is also advantageously rounded in the present case.
  • a preferred embodiment consists in that the stop is designed in the form of a triangle mounted on the pivot axis of the two outer actuators, under which the actuating means are arranged below the pivot axis adjacent to the pivot axis, which actuating means in turn are preferably in the form of an actuating shaft that can be fixed in position on the stand plates, whose part located between the stand plates forms an eccentric bearing on the cathode adjacent to the pivot axis.
  • a clamping device of the type mentioned and in accordance with the basic solution can also be provided such that the stop is designed in the form of an axially adjustable and fixable slide between the stand plates against the pivot arm which is essentially in the clamping position.
  • the actuating means of the slider can be formed from an actuating shaft which passes through it, is mounted on the stand plates and can be fixed in position, the part of which engaging through the slider is designed in the form of an eccentric.
  • the tensioning device consists of forged individual parts, namely two stand plates 1 with a swivel arm 2 mounted between them and for attaching the tension arm 3 and two outer actuators 4, which are connected to the swivel arm 2 by a two-part towing member 5 are articulated.
  • the bore 16 serves for articulation of the swivel arm 2, the bore 17 for articulation of the actuators 4 and the recess 18 for the engagement of the two drag members 5 in the end or over dead center position.
  • the free ends 2 ', 4' of the swivel arm 2 or the actuators 4 are rounded, as shown, in order to be able to attach the tension arm 3 or the fastening handle 15 in the desired or required position.
  • a stop A adjustable with adjusting means S is arranged between the base plates 1 on the clamping arm side SS, the stop surface 6 of which defines the closed position of the clamping arm 3 and under the swivel arm 2 between it Free end 2 'and its articulation 7 to the towing member 5 is arranged, the actuating means S, which are accessible from the outside, being arranged at the end of the stop A opposite the stop surface 6 in the central region outside the actuator pivoting region.
  • the actual stop surface 6 of the stop A is advantageously rounded, precisely because inaccurate sliding has to be compensated for.
  • FIG. 1 to 3 show the preferred embodiment, in which the stop A in the form of one on the pivot axis 8 of the two outer actuators 4 mounted triangle 9, below which the pivot axis adjacent cathode 10, the adjusting means S are arranged.
  • the actuating means S are designed in the form of an actuating shaft 11 which can be fixed in position on the upright plates 2, the part of which located between the upright plates 1 forms an eccentric E lying adjacent to the cathode 10 adjacent to the pivot axis 8.
  • the eccentric E or the eccentric bolt is illustrated with its possible design in FIG. 5, which, for example, can also be used in this form for the other exemplary embodiments, for which only the base plate 1 is shown in FIG but must also be presented there as a pair of base plates according to FIG. 2.
  • the stop A is designed in the form of a slide 12 which can be adjusted and fixed axially between the stand plates 1 against the pivot arm 2 which is essentially in the clamping position.
  • the actuating means S of the slide 12 are formed from an actuating shaft 11 ′ which extends through the latter and is mounted on the stand plates 1 and can be fixed in position, the part of the actuating shaft which extends through the slide 12 is designed in the form of an eccentric E.
  • a slot 14 with pin 13 on the inner flanks of the base plates 1 ensure the slide guide. Otherwise, the slide 12 could also be operated from below with an adjusting screw (not shown), provided that the lower end of the base plates 1 remains accessible in order to be able to operate the adjusting screw.
  • the Embodiment according to FIGS. 1 to 3 is preferred, in which, in addition to adjusting the stop A, this can also be assigned a set screw instead of the eccentric E in a suitable manner and arrangement.
  • the actuating means S do not directly form the stop itself, but are arranged relatively far away from the actual stop location and bridges the distance by the pivotable or displaceable stop A and thus keep the surface F of the base plates 1 free of actuating means becomes.
  • the actuators 4 can, if necessary, also be adjusted somewhat into the area of the surface F if the respective over-center position requires this.
  • the hexagonal shape of the outer part of the adjusting means S shown is not mandatory, i.e. the head 19, which is easily accessible from the outside, could also have a circular shape and be provided with an internal hexagon.
  • a lock nut 20 determines the set position of the stop A.
  • the adjustment of the stop with an eccentric is not mandatory, i.e. an adjusting wedge could also be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Physical Vapour Deposition (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
EP95116316A 1994-11-08 1995-10-17 Moyens de serrage Withdrawn EP0711632A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9417667U DE9417667U1 (de) 1994-11-08 1994-11-08 Spannvorrichtung
DE9417667U 1994-11-08

Publications (1)

Publication Number Publication Date
EP0711632A1 true EP0711632A1 (fr) 1996-05-15

Family

ID=6915680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95116316A Withdrawn EP0711632A1 (fr) 1994-11-08 1995-10-17 Moyens de serrage

Country Status (2)

Country Link
EP (1) EP0711632A1 (fr)
DE (1) DE9417667U1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69732694T2 (de) * 1997-07-18 2005-12-29 Simpro S.P.A. Sistemi E Macchine Di Produzione System zum Spannen von Bauteilen, insbesondere von zu schweissenden Blechteilen
EP0928664A3 (fr) * 1998-01-09 2001-05-02 I.S.I. International S.A. Dispositif à genouillère actionné à main
DE10124063A1 (de) * 2001-05-16 2002-11-28 Sta Co Mettallerzeugnisse Gmbh Spannvorrichtung zum gegenseitigen Festspannen insbesondere von per Laser zu verschweißenden Karosserieteilrändern
US7648131B2 (en) * 2005-11-04 2010-01-19 Delaware Capital Foundation, Inc. Horizontal hold down clamp

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2054572A (en) * 1935-03-29 1936-09-15 Detroit Stamping Co Toggle clamp
DE1298055B (de) * 1964-10-08 1969-06-19 Blatt Leland F Kniehebel-Einspannvorrichtung
DE2205779B1 (de) * 1972-02-08 1973-04-26 DE STA CO Metallerzeugnisse GmbH, 6000 Frankfurt Kniehebel-gelenkklemme
US4620696A (en) * 1983-08-10 1986-11-04 Blatt Leland F Power clamp
EP0317924A2 (fr) 1987-11-22 1989-05-31 DE-STA-CO Metallerzeugnisse GmbH Dispositif de serrage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3782712A (en) * 1972-09-28 1974-01-01 L Blatt Toggle clamp with detent open guided arm
WO1979001157A1 (fr) * 1978-05-31 1979-12-27 G Chopin Bridage a genouillere
DE3116311C1 (de) * 1981-04-24 1982-10-28 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Werkstueckschnellspanner mit Kniehebel
DE8805178U1 (de) * 1988-04-19 1989-08-24 De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt Bauelementensatz zur Ausbildung eines Befestigungsträgers für Spannvorrichtungen
SE8801737D0 (sv) * 1988-05-09 1988-05-09 Weidmueller C A Gmbh Co Handverktyg

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2054572A (en) * 1935-03-29 1936-09-15 Detroit Stamping Co Toggle clamp
DE1298055B (de) * 1964-10-08 1969-06-19 Blatt Leland F Kniehebel-Einspannvorrichtung
DE2205779B1 (de) * 1972-02-08 1973-04-26 DE STA CO Metallerzeugnisse GmbH, 6000 Frankfurt Kniehebel-gelenkklemme
US4620696A (en) * 1983-08-10 1986-11-04 Blatt Leland F Power clamp
EP0317924A2 (fr) 1987-11-22 1989-05-31 DE-STA-CO Metallerzeugnisse GmbH Dispositif de serrage

Also Published As

Publication number Publication date
DE9417667U1 (de) 1995-01-05

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