EP0474935B1 - Werkbank - Google Patents

Werkbank Download PDF

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Publication number
EP0474935B1
EP0474935B1 EP90310094A EP90310094A EP0474935B1 EP 0474935 B1 EP0474935 B1 EP 0474935B1 EP 90310094 A EP90310094 A EP 90310094A EP 90310094 A EP90310094 A EP 90310094A EP 0474935 B1 EP0474935 B1 EP 0474935B1
Authority
EP
European Patent Office
Prior art keywords
legs
worktable
pair
support arms
members
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
EP90310094A
Other languages
English (en)
French (fr)
Other versions
EP0474935A1 (de
Inventor
Wen-Ho Cheng
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
Priority to EP90310094A priority Critical patent/EP0474935B1/de
Priority to DE1990614629 priority patent/DE69014629T2/de
Publication of EP0474935A1 publication Critical patent/EP0474935A1/de
Application granted granted Critical
Publication of EP0474935B1 publication Critical patent/EP0474935B1/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
    • B25H1/10—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
    • 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
    • B25H1/02—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby of table type
    • B25H1/04—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby of table type portable

Definitions

  • the present invention relates to a workbench or worktable, and in particular relates to a worktable which is foldable for easy and convenient storage when not in use and portability.
  • Most worktables are formed with fixed dimensions, and workpieces or articles to be worked on are tightly fastened to the tabletop by clamping means thereon to facilitate the working operations to be performed on it.
  • Worktables with fixed dimensions occupy a very large storage space and are not convenient in either carriage or storage, and consequently, do not meet the requirements of portability nor can they be easily moved to a storage room when they are not in use.
  • a worktable of the type defined in the pre-characterising portion of Claim 1 comprising two pairs of legs, and a table top supported by the legs and having a pair or receiving frames, the legs of each said pair being pivotally connected at their upper ends to the receiving frames, and a pair of clamping members disposed on the receiving frames.
  • the distance between the clamping members is adjustable by a threaded rod to enable articles to be firmly clamped therebetween.
  • a pair of support arms have upper ends pivotally connected to forward end portions of the respective receiving frames and lower ends pivotally connected to the forward most legs of the pairs of legs.
  • the support arms comprise two pivotally connected link members, and a third link member coupled to the rear legs for holding the support arms, when the legs are spread apart, for said support arms to support said tabletop to maintain it in a level condition. Additional linkages are connected between the legs of each pair to secure the legs against unintentionally collapsing together.
  • This worktable may be folded to reduce its volume for storage by disengaging the additional linkages and pivoting the legs together.
  • this folding worktable involves many complicated parts which make it difficult to manufacture and assemble, expensive in production, and inconvenient in use.
  • the clamping members are fixed in level positions, with the result that they are suited to clamping only limited forms of articles between their confronting edges.
  • the present invention aims to provide a worktable which can overcome and eliminate the above drawbacks and according to the invention there is provided a worktable comprising two pairs of legs, a table top supported by the legs, the legs of each said pair being pivotally interconnected by a joint means at their upper ends, and said tabletop including a pair of receiving frames, pivotally connected to said joint means and having a pair of clamping members disposed thereon, the distance between said members being adjustable by a threaded rod to enable articles to be firmly clamped therebetween, and a pair of support arms having upper ends pivotally connected to forward end portions of the respective receiving frames, characterised in that the lower ends of the support arms comprise locking means for releasable engagement with locating pins provided on the forward most legs of the pairs of legs for said support arms to support said tabletop to maintain it in a level condition, said locking means including slidable fixing means movable between open and closed positions for releasing and locking the support arm, respectively, with respect to said locating pin, disengagement of the support arms from said
  • the worktable described herein further comprises a plurality of auxiliary clamps disengageably mounted on top boards of the worktable in order to clamp articles.
  • a worktable 100 having two pairs of legs 10, a tabletop 20, and one pair of support arms 30.
  • a joint means or bracket 11 is attached to the legs of each pair of legs 10 to pivotally join the same at their top ends while it also pivotally mounts a support or receiving frame 21 of the tabletop 20.
  • the righthand leg is fixed to the bracket 11 and the lefthand leg is pivoted to the bracket.
  • Two tool racks 12 act as cross struts an extend transversely between the corresponding legs of the two pairs of legs 10, the racks being provided with openings with different sizes and configuration for receiving tools (not shown) so that they can be accessed easily whenever they are needed.
  • the tabletop 20 includes two receiving frames 21 respectively pivoted on the brackets at the tops of the legs fixed thereto.
  • a pair of fixtures in the form of two-part hinge mounts are provided for attaching top boards 27 thereon.
  • One of the hinge mount fixtures is fixedly connected to the receiving frame whereas the other fixture is longitudinally movable and is connected to a nut engaged with a threaded rod.
  • the threaded rod (Fig. 3) is installed inside the receiving frame 21, and crank rocker handles are fastened to the rods and provided outside the working end of each receiving frame 21, so that they can be used to adjust the distance between the two fixtures and hence the top boards 27, for tightly clamping and releasing an article between the top boards. Since the above-mentioned adjustment structure is similar to that of a conventional worktable, it is not described in any detail herein.
  • the worktable 100 of the present invention further comprises a plurality of auxiliary chucks or clamps disengagebly mounted on the top boards 27 of the worktable 100.
  • the worktable 100 may clamp articles of various sizes and shapes.
  • the top boards 27 are provided with a plurality of engaging holes to receive the auxiliary clamps 40 therein, in a manner known per se.
  • the worktable 100 of the present invention is characterised by including the two support arms 30 and by being provided with two adjustable, hinged fixtures.
  • Each of the support arms 30 is pivotally connected by its upper end to the underside of the front end of a respective receiving frame 21, while its lower end is provided with a pair of detent notches 31 and a slidable fixing means in the form of a latch plate 32.
  • the dents 31 are arranged to receive a locating pin 14 provided on the forwardly extending leg 10 while the fixing latch 32 serves to lock the locating pin 14 in the notches 31, the latch being movable between two different, i.e.
  • the latch plates are preferably spring-loaded and biased into their closed position.
  • the fixing latches 32 When the fixing latches 32 is moved to the release position, the notches 31 are opened and the support arms may detach from the locating pins 14, and, consequently, the legs 10, to allow the legs 10 are well as the table top 20 to be folded in a vertical direction due to their pivotal connection with the brackets 11.
  • Each of the top board mounting fixtures comprises an upper part 23 and a lower part 22, the upper part 23 is pivotally connected to the lower part 22 while the latter is disposed on the receiving frame 21.
  • the upper part 23 is provided with a retaining pin 24 which transversely passes through an arcuate guiding slot 25 formed in the lower part and having enlarged holes at its ends.
  • the retaining pin 24 has a spring 26 supported thereon for biasing the pin longitudinally, and the pin has larger diameter end portions which engageable in the enlarged holes at the ends of the guiding slots 25, for securing the upper part in either of two pivotal positions so that the top board 27 fixed on top of the upper part 23 may be positioned in either a level i.e.
  • the tabletop 20 is pivoted upwardly and the legs of each of legs 10 are folded toward each other, which can be performed while two pairs of legs 10 are in contact with the ground.
  • the worktable is shown in its folded condition in Fig. 2, from which it can be seen the space occupied by the folded worktable 100 is minimal whereby handling and storage are facilitated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)

Claims (4)

  1. Arbeitstisch (100), der zwei Paar Beine (10) umfaßt, eine von den Beinen getragene Tischplatte (20), wobei die Beine jedes Paares schwenkbar durch eine Gelenkeinrichtung (11) an ihren oberen Enden miteinander verbunden sind, und wobei die Tischplatte ein Paar Aufnahmeträger (21) enthält, die schwenkbar mit der Gelenkeinrichtung verbunden sind, und auf denen ein Paar Klemmelemente (27) angeordnet sind, wobei der Abstand zwischen den Elementen durch eine Gewindestange eingestellt werden kann, so daß Gegenstände fest dazwischen eingeklemmt werden können, sowie ein Paar Stützarme (30), deren obere Enden schwenkbar an vorderen Endabschnitten der entsprechenden Aufnahmeträger angebracht sind, dadurch gekennzeichnet, daß die unteren Enden der Stützarme Arretiereinrichtungen (31) zum lösbaren Eingriff mit an den vordersten Beinen des Paars von Beinen (10) befindlichen Fixierstiften (31) umfassen, so daß die Stützarme die Tischplatte tragen und sie in einer waagerechten Stellung halten, wobei die Arretiereinrichtungen verschiebbare Befestigungseinrichtungen (32) enthalten, die zwischen offenen und geschlossenen Stellungen bewegt werden können, um den Stützarm in bezug auf den Fixierstift zu lösen bzw. zu arretieren, wobei das Lösen der Stützarme von den Fixierstifen (14) es ermöglicht, die Beine zusammenzuschwenken und die Tischplatte nach oben zu schwenken, wodurch der zusammenzuklappende Arbeitstisch im wesentlichen flach ist, und dadurch, daß die Klemmelemente (27) auf jedem Aufnahmeträger durch ein Paar Klemmelement-Haltevorrichtungen gehalten werden, wobei jede Haltevorrichtung einen mit dem Aufnahmeträger verbundenen unteren Teil (22) sowie einen oberen Teil (23) enthält, der zwischen zwei im wesentlichen um 90° auseinanderliegenden Positionen beweglich mit dem unteren Teil verbunden ist, wodurch die Klemmelemente zwischen entsprechenden Positionen einstellbar sind, in denen die Elemente im wesentlichen waagerecht sind, und in denen die Elemente im wesentlichen aufrecht stehen.
  2. Arbeitstisch nach Anspruch 1, wobei die unteren Enden der Stützarme Kerben (31) zur Aufnahme der Fixierstifte (14) aufweisen und die Befestigungseinrichtungen in Längsrichtung verschiebbare Einrastelemente (32) umfassen, die in unteren geschlossenen Stellungen derselben die Stifte in den Kerben halten.
  3. Arbeitstisch nach Anspruch 1 oder 2, wobei die oberen und die unteren Teile (22, 23) jeder Haltevorrichtung durch einen Haltestift (24) miteinander verbunden sind, der an einem Teil befestigt ist und in einen Führungsschlitz (25) eingreift, der im anderen Teil ausgeformt ist.
  4. Arbeitstisch nach Anspruch 1, 2 oder 3, wobei eine lösbare Einrichtung (26, 25) vorhanden ist, die den oberen Teil jeder Haltevorrichtung in jeder der zwei Stellungen hält.
EP90310094A 1990-09-14 1990-09-14 Werkbank Expired - Lifetime EP0474935B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP90310094A EP0474935B1 (de) 1990-09-14 1990-09-14 Werkbank
DE1990614629 DE69014629T2 (de) 1990-09-14 1990-09-14 Werkbank.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90310094A EP0474935B1 (de) 1990-09-14 1990-09-14 Werkbank

Publications (2)

Publication Number Publication Date
EP0474935A1 EP0474935A1 (de) 1992-03-18
EP0474935B1 true EP0474935B1 (de) 1994-11-30

Family

ID=8205546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90310094A Expired - Lifetime EP0474935B1 (de) 1990-09-14 1990-09-14 Werkbank

Country Status (2)

Country Link
EP (1) EP0474935B1 (de)
DE (1) DE69014629T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2343650A (en) * 1998-11-13 2000-05-17 Cheng Wen Ho Clamping block for a workbench
CN2489918Y (zh) * 2001-07-27 2002-05-08 特力股份有限公司 工作台的夹块
US6854314B2 (en) * 2001-09-14 2005-02-15 Van Mark Products Corporation Sheet metal tool stand
GB2418882B (en) * 2004-10-06 2008-10-22 Mark Christopher Turpin Improvement to portable work bench
EP2767368B1 (de) 2013-02-15 2016-02-10 The Stanley Works Israel Ltd. Werkbank mit Schraubstock
EP2767369B1 (de) * 2013-02-15 2016-04-20 The Stanley Works Israel Ltd. Werkbankrahmen
CN113605181B (zh) * 2021-08-10 2023-05-23 中交二公局第六工程有限公司 土路肩摊铺机及其施工方法
CN116330231B (zh) * 2023-02-25 2024-01-16 靖江艾威机械配件制造有限公司 便于调整定位的换热器板片组装框架

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0222477A1 (de) * 1985-10-02 1987-05-20 Black & Decker Inc. Werkbänke

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1421929A (en) * 1920-08-13 1922-07-04 Floreskul Gabriel Combination table
US1776346A (en) * 1924-09-20 1930-09-23 Calvin A Buffington Folding table
GB594337A (en) * 1945-05-24 1947-11-07 Frederick John Charlesworth Improvements in and relating to folding tables and the like
AT345504B (de) * 1977-04-14 1978-09-25 Aigner Ernst Ing Klapptisch oder -bank
US4154435A (en) * 1978-02-22 1979-05-15 The Black And Decker Manufacturing Company Portable workbench
US4369822A (en) * 1980-11-17 1983-01-25 Rice Robert C Combination tool chest dolly and leaved workbench
AU1598383A (en) * 1982-06-25 1984-01-05 Hilton (Products) Ltd. Workbench with adjustable vice
GB2166682B (en) * 1984-10-30 1988-08-03 Edward David Jones Folding workbench
US4943040A (en) * 1989-01-26 1990-07-24 Cannon Equipment Company Adjustable work stand

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0222477A1 (de) * 1985-10-02 1987-05-20 Black & Decker Inc. Werkbänke

Also Published As

Publication number Publication date
EP0474935A1 (de) 1992-03-18
DE69014629D1 (de) 1995-01-12
DE69014629T2 (de) 1995-06-22

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