EP0184183B1 - Etau avec déplacement rapide de la mâchoire mobile - Google Patents

Etau avec déplacement rapide de la mâchoire mobile Download PDF

Info

Publication number
EP0184183B1
EP0184183B1 EP85115303A EP85115303A EP0184183B1 EP 0184183 B1 EP0184183 B1 EP 0184183B1 EP 85115303 A EP85115303 A EP 85115303A EP 85115303 A EP85115303 A EP 85115303A EP 0184183 B1 EP0184183 B1 EP 0184183B1
Authority
EP
European Patent Office
Prior art keywords
block
seats
vice
jaw
guides
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
EP85115303A
Other languages
German (de)
English (en)
Other versions
EP0184183A3 (en
EP0184183A2 (fr
Inventor
Marco Maggi
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.)
OML SNC OFFICINA MECCANICA LOMBARDA
Original Assignee
OML SNC OFFICINA MECCANICA LOMBARDA
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 OML SNC OFFICINA MECCANICA LOMBARDA filed Critical OML SNC OFFICINA MECCANICA LOMBARDA
Priority to AT85115303T priority Critical patent/ATE54267T1/de
Publication of EP0184183A2 publication Critical patent/EP0184183A2/fr
Publication of EP0184183A3 publication Critical patent/EP0184183A3/en
Application granted granted Critical
Publication of EP0184183B1 publication Critical patent/EP0184183B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • B25B1/12—Arrangements for positively actuating jaws using screws with provision for disengagement
    • B25B1/125—Arrangements for positively actuating jaws using screws with provision for disengagement with one screw perpendicular to the jaw faces

Definitions

  • the present invention refers to the modular vice for the quick displacement of the mobile jaw, where the fine lock regulation of a piece between the jaws is made by a worm-screw, supported by a block sliding along guides, which causes said mobile jaw to carry out limited axial displacements.
  • the quick displacement is realized by means of the block connected to the mobile jaw through a worm-screw.
  • a ball is fixed, which couples with spherical notches made out along the longitudinal axis of the vice basis.
  • the operator handling the worm-screw, executes the locking of the piece to be worked, between the mobile jaw and the fixed one.
  • the work table on which the vice is fixed moves toward the tool of the machine.
  • a force is thus created which is opposed to the displacement direction of the work table.
  • Said force acts in a direction opposite to the one exercised by the mobile jaw on the piece, and that may cause the coming out of the ball, fixed to the block, from the spherical notch in which it was positioned. In this way the block and consequently the mobile jaw moves and the piece, no more locked, falls.
  • Another drawback of the vices of this known type consists in the fact that it is necessary an almost great space between two consecutive notches, made out on the basis of the vice, in order to avoid the a damage of their contour due to an anomalous force. For this reason the number of modular displacements of the block is limited.
  • vices were realized, having a series of holes made out on the basis of the vice, in which a pin is engaged which fixes the block connected, in a known way, to the mobile jaw.
  • a displacement of the block must be executed, it is necessary to take the pin out of the hole, to position the block in the new seat and to put the pin into the correspondent hole for the locking of said block.
  • the displacement of the mobile jaw does not take place quickly (taking in account the time for taking out the pin, for positioning the block in proximity of a new hole, for engaging the pin again). Therefore the utility of having a modular vice with quick displacements of the mobile jaw is lacking.
  • a vice comprising a basis having a fixed jaw, a block carrying a movable jaw, said block sliding along guides formed on said basis so that said movable jaw can perform a limited displacement towards and away from said fixed jaw, a worm screw being supported by said block for the fine regulation of said movable jaw to lock a piece between the jaws, whereby circle-arch shaped and equally spaced seats are formed along the lower part of the opposite sides of said guides, means being further provided for engaging said seats and locking said block in the desired position, is known from US-A-4 431 174.
  • said engagement means comprise pins slidably mounted in the block for transverse movement. The end of each pin distal to a middle channel is partly curved so that it may mate with said seats.
  • a wedge In a middle channel of said block a wedge is movable by a handle which engages the inner ends of said pins to urge them outwardly into said seats.
  • the mechanism for urging said pins outwardly and remove them to an inward position is very complicated and therefore expensive to manufacture.
  • the technical problem underlying the invention is to provide a vice as specified above which is easy and unexpensive to manufacture and which enables quick displacement of the mobile jaw.
  • Fig. 1 it is generally indicated with 20 a vice formed by a basis 22 to which the fixed jaw 24 is solidly connected.
  • a mobile jaw 26 is displaceable along the opposite guides 28, made out on the basis 22, by means of a worm-screw 30 supported by a block 32.
  • connection jaw 26 - screw 30 is not illustrated in detail as it is known in the art and does not form the object of the present invention.
  • the block 32 is sliding along the guides 28 and guided along them by a pin 34 (Figs. 1, 2 and 3).
  • a plate 42 fixed to the block 32 ( Figures 1 and 2) and parallel to the axis of the pin 34.
  • Said plate 42 is substantially of rectangular shape and the shorter sides are shaped in such a way that they have the shape of half of the circle corresponding to the seats 40 so that it is easily positioned in said seats 40 as it will be afterwards explained.
  • the particular shape of the shorter sides of the plate 42 prevents this last and thus the block 32 from moving when said plate 42 is positioned in the opposite arch-shaped seats 40, even in the case of a stumbling of the tool against the piece and of a considerable increase of the generated force.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Adornments (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Sawing (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Claims (1)

  1. Etau comprenant une base (22) comportant une mâchoire fixe (24), un bloc (32) supportant une mâchoire mobile (26), ledit bloc (32) coulissant le long de guides (28) formés sur la base (22), de sorte que la mâchoire mobile (26) peut effectuer un déplacement limité la rapprochant et l'éloignant de ladite mâchoire fixe, une vis sans fin (30) étant supportée par le bloc (32) en vue d'un réglage fin de la mâchoire mobile (26) pour bloquer une pièce entre les mâchoires, des sièges équidistants (30) étant formés le long de la partie inférieure des guides (28), des moyens d'engagement (42) étant en outre présents pour porter contre lesdits sièges et verrouiller le bloc (32) dans la position désirée, un axe (34) étant fixé au bloc (32) de manière à coulisser le long des guides (28) et à permettre au bloc (32) de pivoter pour soulever desdits sièges les moyens d'engagement (42), caractérisé en ce que les sièges (40) comprennent des ouvertures en forme d'arc de cercle ménagées sur les côtés opposés des guides (28) et les moyens d'engagement comprennent une plaque de forme rectangulaire (42) fixée au bloc (32) et parallèle à l'axe géométrique de l'axe (34) et à la direction de coulissement du bloc et comportant des prolongements latéraux, en forme de segment de cercle, correspondant auxdits sièges (40).
EP85115303A 1984-12-06 1985-12-03 Etau avec déplacement rapide de la mâchoire mobile Expired - Lifetime EP0184183B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85115303T ATE54267T1 (de) 1984-12-06 1985-12-03 Schraubstock mit schneller verstellung der bewegbaren backe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT42915/84A IT1181063B (it) 1984-12-06 1984-12-06 Morsa modulare per lo spostamento rapido della ganascia mobile
IT4291584 1984-12-06

Publications (3)

Publication Number Publication Date
EP0184183A2 EP0184183A2 (fr) 1986-06-11
EP0184183A3 EP0184183A3 (en) 1987-06-03
EP0184183B1 true EP0184183B1 (fr) 1990-07-04

Family

ID=11254702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115303A Expired - Lifetime EP0184183B1 (fr) 1984-12-06 1985-12-03 Etau avec déplacement rapide de la mâchoire mobile

Country Status (4)

Country Link
EP (1) EP0184183B1 (fr)
AT (1) ATE54267T1 (fr)
DE (1) DE3578560D1 (fr)
IT (1) IT1181063B (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE127733C (fr) *
GB143549A (en) * 1919-05-08 1921-03-31 James Henry Jerrim Improvements in or relating to machine or other vices and like work holding or setting appliances
DE1247228B (de) * 1961-08-19 1967-08-10 Maschf Augsburg Nuernberg Ag Schraubstock fuer Werkzeugmaschinen
FR2140297A1 (fr) * 1971-06-09 1973-01-19 Paret Paul
GB1417558A (en) * 1972-03-28 1975-12-10 Hern Engs Ltd Basil Vices
CH539490A (de) * 1972-04-14 1973-07-31 Spengler Ernst Spannstock
GB2050209B (en) * 1979-02-28 1983-01-19 Wallace D I Means for restraining movement between relatively displaceable members
US4431174A (en) * 1981-12-11 1984-02-14 Arnold Varden Vice

Also Published As

Publication number Publication date
ATE54267T1 (de) 1990-07-15
EP0184183A3 (en) 1987-06-03
DE3578560D1 (de) 1990-08-09
IT1181063B (it) 1987-09-23
IT8442915A0 (it) 1984-12-06
EP0184183A2 (fr) 1986-06-11

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