EP0693019B1 - Werkbank, insebesondere als lehrmittel in der form einer ergonomisch gestalteten mehrzweck-werkbank - Google Patents

Werkbank, insebesondere als lehrmittel in der form einer ergonomisch gestalteten mehrzweck-werkbank Download PDF

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Publication number
EP0693019B1
EP0693019B1 EP94911101A EP94911101A EP0693019B1 EP 0693019 B1 EP0693019 B1 EP 0693019B1 EP 94911101 A EP94911101 A EP 94911101A EP 94911101 A EP94911101 A EP 94911101A EP 0693019 B1 EP0693019 B1 EP 0693019B1
Authority
EP
European Patent Office
Prior art keywords
worktop
workbench
clamping
spindle
vise
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
EP94911101A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0693019A1 (de
Inventor
Klaus Dr.-Ing. Thormeier
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 EP0693019A1 publication Critical patent/EP0693019A1/de
Application granted granted Critical
Publication of EP0693019B1 publication Critical patent/EP0693019B1/de
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
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/08—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for attachment of work holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/10—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting holders for tool or work
    • 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
    • Y10S269/00—Work holders
    • Y10S269/90—Supporting structure having work holder receiving apertures or projections

Definitions

  • the invention relates to a workbench, in particular as a teaching aid in the form of an ergonomically designed multi-purpose workbench for use in training in craft activities according to the preamble of patent claim 1.
  • a separate workstation should be available at every corner. It should be possible to set up different workstations for left and right-handers on the same workbench. In the case of workplaces for right and left-handers, the clamping jaws are each arranged differently at the corners of the worktop of the workbench. This different arrangement has previously made it necessary to have different workbenches, in each case specifically for right-handers and / or left-handers, in single-workstation or multi-workstation workbenches.
  • the invention as a whole strives to work optimally from an ergonomic point of view on such a multi-user workbench by means of a corresponding workbench-related workstation design.
  • the auxiliary devices usually used on the workbench, such as the bench hook or other auxiliary tools to be picked up.
  • Special attention is also paid to the simple structure of the individual functional and auxiliary devices. This applies particularly to the structure and functionality of the jaws.
  • the clamping jaws can be mounted on one and the same workbench in different positions, each suitable for a right- or left-handed person, or, if necessary, implemented in such positions.
  • the clamping jaw is simply rotated by 180 degrees around the axis of the clamping spindle. This is possible because the jaw is constructed symmetrically.
  • the guide bushes for the guide means additionally guiding the clamping jaw on the worktop are arranged at the same distance from the relevant workbench corner in both clamping jaw positions.
  • the implementability of the clamping jaws according to the invention is possible by means of receiving means provided on the worktop at each of the four corners of a workbench.
  • the feasibility of a clamping jaw can also be used to convert the clamping jaw into a more favorable position for a left- or right-handed person working on the workbench.
  • the additional guide means has a greater distance from the associated workbench corner in relation to the clamping spindle. Compared to conventional clamping jaw guides, this results in a significantly larger distance between the workbench corner and the first guide means - seen from the workbench corner - in the present solution, so that even quite wide parts can be clamped without any problems.
  • the additional guide means is expediently a spindle rigidly fastened to the clamping jaw and axially freely displaceable in the worktop, on which a spindle nut which is countersunk in the clamping surface of the clamping jaw is attached to achieve a clamping jaw tension compensation against the worktop.
  • This measure simplifies the design in that the functions of the additional jaw guide and the tension compensation are combined in a single part.
  • the tension compensation spindle is guided in the worktop only axially freely displaceable in a cylindrical bore. In the worktop, in particular, no spindle nut engages this tension compensation spindle.
  • the design as a spindle only serves to clamp the spindle nut lying outside the worktop in order to achieve the tension compensation with respect to the worktop.
  • Such a tension compensation may be necessary to avoid skewing of the clamping jaw when clamping a workpiece in the direct workbench corner area.
  • the functions "guiding” and “tension compensation” can only be combined if the tension compensation spindle in both possible working positions of the clamping jaw has the greater distance from the relevant workbench corner according to the invention compared to the clamping spindle axis.
  • workpieces are not only clamped between the clamping jaw itself and the adjacent worktop side surface, but also between bench hooks that can be variably attached to the worktop and the clamping jaw.
  • receiving openings for bench hooks are usually provided in various distributions on the worktop and on the clamping jaw itself.
  • these openings are circular and in each case distributed along each clamping spindle guide axis over the entire length of the worktop.
  • the openings are at the same distance from each other, which also corresponds to the maximum span between the clamping jaw and worktop.
  • At least one receiving opening is also arranged perpendicular to the clamping spindle axis in the clamping jaw. Such an arrangement of the receiving openings allows workpieces to be clamped along the axis of the clamping spindle relative to this axis without torque. In these cases, tension compensation on the clamping jaw is not necessary. Since the clamping jaw can be used in rotated positions, the receiving opening in question must of course be on the relevant one two upward-facing jaw surfaces of the jaw are present.
  • the arrangement and orientation of the receiving openings described above results in a uniform grid of receiving openings, with one receiving opening always being aligned in the axial direction in the clamping spindle axis on the clamping jaw.
  • the receiving openings distributed in this way allow in particular a good and simple clamping of round workpieces or of workpieces with non-plane-parallel edges within a total of three bench hooks. Two of these bench hooks can be located on the worktop and one on the clamping jaw or vice versa.
  • the depth of the receiving openings for the bench hooks is such that the bench hooks can be inserted flush into the surface of the worktop.
  • This offers the advantage that almost arbitrarily flat workpieces, such as sheet metal, can be clamped without fear of "getting caught" on the bench hooks which otherwise protrude above the workpiece surface during their superficial processing.
  • the openings for the bench hooks can be blind holes of appropriate depth or through-bores each with an annular step for flush abutment of the bench hooks when they are pushed flush into the worktop.
  • Continuous receiving bores with only one ring shoulder as a stop for the bench hooks offer the advantage that chips which have undesiredly penetrated into these openings can fall through downwards or be removed there.
  • the bench hooks are preferably made of metal and have a cylindrical basic shape. To at any height within To be fixable of the receiving openings, the bench hooks are equipped with radially outwardly acting spring means in the area of their cylindrical basic shape.
  • the spring means can be accommodated in a bore diametrically penetrating the bench hook and can consist of a ball projecting radially from the bore under the pressure of a helical spring.
  • the ball can rest against a ring step within the bench hook hole and the coil spring can be supported on a closure piece of the bench hook hole at the other end thereof.
  • a particularly advantageous clamping behavior can be achieved with the bench hooks in that they have a flattened circumferential area at one end, which protrudes from the worktop surface when a workpiece is clamped, which extends in each case over the height at which the bench hooks with a maximum load capacity sufficient storage in the receiving opening of the worktop can protrude from it at most.
  • This flattening allows workpieces with a flat, rectangular contact surface to lie flat against the bench hook. Because of the round basic shape of the bench hooks, they can still be rotated in their receiving openings. Due to the round basic shape and the flattened contact surfaces of the bench hooks, with additional consideration of the distribution of the receiving openings according to the invention within a specifically predetermined grid on the worktop, excellent previously unachievable clamping constellations can be achieved with ease.
  • the workbench according to the invention described with all its various designs and auxiliary devices ideally corresponds to the requirements placed on a workbench in a training facility.
  • a very important advantage is that left and right-handed workplaces can be changed and / or combined as required by simple implementation of the clamping jaws on one and the same workbench.
  • a workbench has a worktop 2 placed on continuously and centrally height-adjustable legs 1 made of wood, for example, and is equipped with four workstations.
  • Such multi-station workbenches are used, for example, in training centers for all kinds of manual work.
  • Such workbenches are very well suited, among other things, for the training of carpenters.
  • each of these clamping jaws 3 is guided and mounted in the worktop 2 via a clamping spindle 4 and can be clamped against it by actuating the clamping lever 5.
  • the guide bearing for the clamping spindle 4 in the worktop 2 is in each case a metallic bushing 6.
  • the clamping spindle 4 is rotatably mounted in an axially fixed manner.
  • the spindle nut 7 required for the longitudinal displacement of the clamping spindle 4 is mounted in the worktop 2. The position of this spindle nut 7 within the worktop and its special shape will be discussed in more detail below.
  • the clamping jaw 3 has the shape of a cuboid, which, when in contact with the worktop 2, on the one hand with the worktop surface and on the other hand with the worktop side surface 8, which runs perpendicular to the longitudinal extension of the cuboid, is flush with the surface.
  • the clamping spindle 4 penetrates the clamping jaw 3 in the center of the surface of the square side of this clamping jaw 3 that can be placed on the worktop 2.
  • a guide spindle 9 which is fixedly connected to the clamping jaw 3 and which can be moved longitudinally in the worktop 2 in a smooth guide bush 10 provided there serves as guide means for securing the clamping jaw 3 against rotation during clamping.
  • this spindle 9 also serves as a tension compensation device in the jaw.
  • tension compensation devices are generally used in clamping jaws of workbenches to prevent the clamping jaw from sloping when clamping workpieces at only one end of the clamping jaw.
  • the receptacles formed by the guide bushings 6 and 10 for the tensioning and tension compensation spindles 4 and 9 on the worktop 2 are fitted symmetrically in pairs on each worktop corner to each side of the corner. Of this pair of receptacles, only one is occupied, namely the one that is suitable for a position of the clamping jaw 3 for a left-handed or right-handed person.
  • the insertion and repositioning of the clamping jaw 3 with its spindles 4 and 9 is very simple.
  • the mounting of the clamping jaw 3 in the spindle nut 7 of the worktop 2 can be released by actuating the clamping lever 5.
  • the clamping jaw 3 can then be easily pulled out of the guide bushes 6 and 10.
  • the clamping jaw 3 is for mounting in the second pair of receptacles assigned to the relevant workbench corner and formed by the bushes 6 'and 10' only by 180 degrees, inserted and inserted by actuating the clamping lever 5 into the other mounting of the clamping jaw 3.
  • a left-handed or right-handed workplace can be set up differently at each workbench corner and changed if necessary. 1 shows, for example, a workbench with two right-handed and two left-handed workplaces.
  • the openings 12 can be formed as blind holes or through holes.
  • the depth of the blind holes is in each case matched to the height of the bench hooks 13, so that these are flush with the worktop surface when fully inserted into the opening 12.
  • an annular step must be provided which fulfills the function of the blind hole base with reference to an insertion limit for the bench hooks 13.
  • only one or two bench hooks 13 are generally used on the worktop side.
  • the remaining openings 12 not occupied by bench hooks 13 are each closed by loose, easily removable filler pieces 14.
  • At least one receiving opening 12 for a bench hook 13 is arranged on the axis of the clamping spindle 4 on the clamping jaw 3.
  • the clamping jaw 3 enables practically torque-free clamping within the bench hook 13.
  • the arrangement of the receiving openings 12 which is symmetrical to the axis of the bushes 6 and 6 'is decisive for this.
  • the clamping jaw 3 In addition to the opening 12 lying on the axis, two further openings 12 lying symmetrically to this axis are provided on the clamping jaw 3. This symmetrical arrangement also serves to avoid moments when clamping the workpiece in three bench hooks 13.
  • the receiving openings 12 are each provided on the two opposing clamping jaw surfaces 15 and 16 in the same distribution, in order to insert the clamping jaws 3 into the left and right Right-handed jobs differ To be able to twist positions and use them equally.
  • the only double-function spindle nut 7 of a work station is attached to the intersection of the axes of the two bushings 6 and 6 'in the worktop 2.
  • the bench hooks 13 have a clamping mechanism in order to be able to be locked at any height within the openings 12.
  • This clamping mechanism is accommodated in a hole 17 in the foot of the bench hook 13 which pierces the bench hook diametrically. It consists of a ball 19 pushed radially outward beyond the circumference of the hook by a helical spring 18, the helical spring 18 being supported on a closure piece 20 at the other end of the bore. Due to an annular step provided in the bore 17, the ball 19 cannot completely leave the bore 17.
  • each bench hook 13 has a flattened area 21 in its head zone. Due to the cylindrical basic shape of the bench hook 13, the clamping surface can be aligned flat on the workpiece counter surface to be clamped. With the bench hook design and arrangement described, in particular round workpieces and workpieces with non-plane-parallel edges can be clamped very well.
  • the flattened area 21 of the bench hook 13 is slightly inclined with respect to the bench hook axis in such a direction that a slight tilting of the bench hook 13 is maintained under tension. In this way, the clamping surface of the bench hook 13 is aligned perpendicular to the worktop surface under pressure.
  • a recess 22 is machined into the flattened area 21. This can be engaged with a rod-shaped gripping tool 23 provided with a barb at one end for pulling it out.
  • the filler pieces 14 are also provided with recesses for attaching the same gripping tool 23 on their two flat end faces for the same purpose of removal. When not in use, this gripping tool 23 is stored in a receiving bore of the clamping jaw 3 provided for this purpose.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Numerical Control (AREA)
  • Mechanical Control Devices (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Catching Or Destruction (AREA)
EP94911101A 1993-04-10 1994-03-31 Werkbank, insebesondere als lehrmittel in der form einer ergonomisch gestalteten mehrzweck-werkbank Expired - Lifetime EP0693019B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4311965A DE4311965A1 (de) 1993-04-10 1993-04-10 Werkbank, insbesondere als Lehrmittel in der Form einer ergonomisch gestalteten Mehrzweck-Werkbank
DE4311965 1993-04-10
PCT/DE1994/000377 WO1994023908A1 (de) 1993-04-10 1994-03-31 Werkbank, insebesondere als lehrmittel in der form einer ergonomisch gestalteten mehrzweck-werkbank

Publications (2)

Publication Number Publication Date
EP0693019A1 EP0693019A1 (de) 1996-01-24
EP0693019B1 true EP0693019B1 (de) 1996-10-30

Family

ID=6485323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94911101A Expired - Lifetime EP0693019B1 (de) 1993-04-10 1994-03-31 Werkbank, insebesondere als lehrmittel in der form einer ergonomisch gestalteten mehrzweck-werkbank

Country Status (8)

Country Link
US (1) US5709256A (da)
EP (1) EP0693019B1 (da)
JP (1) JPH08511475A (da)
AT (1) ATE144737T1 (da)
CA (1) CA2160254C (da)
DE (2) DE4311965A1 (da)
DK (1) DK0693019T3 (da)
WO (1) WO1994023908A1 (da)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5765273A (en) * 1995-09-22 1998-06-16 Black & Decker Inc. Drill press having pivotable table
CO4600690A1 (es) * 1997-10-08 1998-05-08 Valenzuela Carlos Martin Uribe Tablero para que una mesa preste los servicios convencionales y los de un banco para bricolaje
DE19744624A1 (de) * 1997-10-09 1999-04-15 Joerg R Bauer Arbeitsstation zum Halten von Gegenständen
US6412764B1 (en) 2000-08-30 2002-07-02 Ajh Enterprises Portable pipe fitting table
US20050279576A1 (en) * 2004-06-21 2005-12-22 Luc Robichaud Workbench with removable tool support
DE502006002600D1 (de) * 2006-09-20 2009-02-26 Konstruktionsbuero Wuethrich Bausatz mit mindestens einer Platte
WO2008094336A1 (en) * 2007-01-31 2008-08-07 Rowley Donald A System for clamping an object to a railing and a table using the system
US8011399B2 (en) * 2007-05-11 2011-09-06 Lee-Cheng Chang Woodworking bench
IT1395501B1 (it) * 2009-05-15 2012-09-28 Balestrini Renzo Spa Supporto a doppia funzione per il bloccaggio di pezzi in lavorazione
CA2748513C (en) * 2010-08-06 2020-05-05 761250 Alberta Ltd. Portable expandable workbench
DK177186B1 (en) * 2010-09-23 2012-05-21 Lasse Friis Expandable workbench and a method of use
CN106671036A (zh) * 2017-02-20 2017-05-17 京东方科技集团股份有限公司 一种载物平台
CN112454282A (zh) * 2020-11-13 2021-03-09 大唐灌云光伏发电有限公司 一种光伏发电用光伏组件接线装置

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE192703C (da) *
US537338A (en) * 1895-04-09 Carpenter s bench
DE186995C (da) *
DE75997C (de) * „DE-TECTER" PATENT SAFETY POSTAL BOX SYNDI-CATE, LIMITED in London, England Kasten für Schmuckgegenstände und dergl
DE442519C (de) * 1927-04-02 Branscheid & Frings Holzarbeitergeraet
US1205884A (en) * 1914-10-27 1916-11-21 Christian Goerlitz Joiner's bench.
GB210534A (en) * 1922-11-02 1924-02-04 Charles Welsh Improvements in and relating to carpenters' and woodworkers' benches
US1508979A (en) * 1923-05-11 1924-09-16 Keller Peter Carpenter's table
CH114327A (de) * 1925-05-12 1926-03-16 Ernst Quidort Einspannvorrichtung an Hobelbänken.
US1596169A (en) * 1926-02-20 1926-08-17 Follmer Joseph Bench vise
CH144071A (de) * 1930-03-10 1930-12-15 C Rueetschi Einrichtung an Hobelbänken mit französischer Vorderzange.
US2437351A (en) * 1946-04-30 1948-03-09 Joseph A Follmer Quick adjustable bench vise
US2587177A (en) * 1947-06-10 1952-02-26 Charles O Larson Folding workbench
DE1910946A1 (de) * 1969-03-04 1970-09-10 Siegfried Mahl Hobelbank fuer Bau-,Montage- und Heimwerkerarbeiten
US4375827A (en) * 1980-12-03 1983-03-08 Ranko Ignjatic Workbench table top clamping device
DE8106245U1 (de) * 1981-03-02 1981-11-26 Berliner Zentralausschuß für soziale Aufgaben e.V., 1000 Berlin Werkbank oder dergleichen von einem untergestell aufgenommenes arbeits- und/oder freizeitmoebel
AU1598383A (en) * 1982-06-25 1984-01-05 Hilton (Products) Ltd. Workbench with adjustable vice
GB2228705B (en) * 1989-02-24 1993-09-22 Harold Wilfred Gates Bench clamp
US5186228A (en) * 1991-02-08 1993-02-16 Stafford Donald C Workbench and mountable implements
US5553838A (en) * 1992-01-03 1996-09-10 Lee Valley Tools Ltd. Clamping bench dog

Also Published As

Publication number Publication date
DE59400953D1 (de) 1996-12-05
JPH08511475A (ja) 1996-12-03
CA2160254A1 (en) 1994-10-27
WO1994023908A1 (de) 1994-10-27
ATE144737T1 (de) 1996-11-15
US5709256A (en) 1998-01-20
CA2160254C (en) 1998-09-22
DK0693019T3 (da) 1997-04-14
EP0693019A1 (de) 1996-01-24
DE4311965A1 (de) 1994-10-13

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