EP0639431A1 - Support assembly - Google Patents

Support assembly Download PDF

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Publication number
EP0639431A1
EP0639431A1 EP94111465A EP94111465A EP0639431A1 EP 0639431 A1 EP0639431 A1 EP 0639431A1 EP 94111465 A EP94111465 A EP 94111465A EP 94111465 A EP94111465 A EP 94111465A EP 0639431 A1 EP0639431 A1 EP 0639431A1
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EP
European Patent Office
Prior art keywords
lamellae
pin
recess
slats
secured
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Withdrawn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
EP94111465A
Other languages
German (de)
French (fr)
Inventor
Rainer Schmidt
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0639431A1 publication Critical patent/EP0639431A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E05D11/08—Friction devices between relatively-movable hinge parts
    • E05D11/087—Friction devices between relatively-movable hinge parts with substantially axial friction, e.g. friction disks
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
    • A47B21/03—Tables or desks for office equipment, e.g. typewriters, keyboards with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
    • A47B21/0371—Platforms for supporting wrists
    • 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
    • B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
    • B25H1/18—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top in inclination
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets
    • 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
    • Y10S248/00—Supports
    • Y10S248/917—Video display screen support
    • Y10S248/918—Ancillary device support associated with a video display screen

Definitions

  • the invention relates to a device for supporting at least one forearm when actuating keyboards, during assembly work or the like. Consisting of at least one bracket which can be fastened to a table or worktop and which has at least one lockable joint with a pivotable carrier for receiving a Support plate is connected, wherein the joint has two mutually braceable end pieces, between which several lamellae are arranged alternately secured on different joint arms.
  • Devices which serve to support the forearms when operating keyboards, during assembly work or the like. These devices consist of a mostly padded support plate that is attached to a table or worktop.
  • the support plate must have a different height and, if necessary, a different inclination depending on the body size and the working position of the forearms.
  • it is connected at least via a lockable double joint to a bracket which can be attached to the table or worktop.
  • the double joint is formed on the one hand by lamellae, which are fixed at a predetermined distance from each other both on the bracket and on the support plate.
  • slats which act as pivotable levers and which are pivotally connected to the non-rotatable slats via an axis.
  • end pieces On both sides of the plate pack thus formed there are end pieces which can be braced against one another and via which the individual plates are pressed together or clamped together.
  • the support plate In the untensioned state, the support plate can now be brought into a suitable height and inclination position and then secured in this position by pressing the slats together.
  • a disadvantage of such a device is that the individual lamellae have to be connected separately to the mounting bracket and the support plate, usually by welding.
  • the slats are freely accessible, so that dust and dirt can adhere between them, which impairs the clamping process.
  • the visible lamellae give the device an unsightly appearance.
  • the invention is therefore based on the object of designing a device for supporting at least one forearm when operating keyboards, during assembly work or the like so that the previous fastening process of the slats assigned to the fastening bracket and the support plate can be omitted and that the slats or their Function no longer affected by dust from dirt.
  • the visual impression of such a device is to be improved.
  • the carrier and the bracket have at least one pin located in the hinge axis for receiving the slats, that every second slat is secured against rotation on the pin that the pin protrudes together with all slats in a recess of an end piece and that in the recess the other slats are secured against rotation.
  • the device shown in FIG. 1 of the drawing serves to support at least one forearm when operating a keyboard, during assembly work or the like on a table or worktop.
  • the device consists of two levers 1, for example with a T-shaped cross section, which are designed in the area of their webs 2 as clamping brackets 22 and are fastened, for example by means of screws 23, to a table or worktop 24 by clamping.
  • the screws 23 are rotatably inserted in a shoulder 25 and carry at their upper or free end a knurled plate 26, by means of which the screw 23 is rotated and the device can thus be clamped to the table or worktop (FIG. 3).
  • the legs 3 of the levers 1 are articulated via a double joint 4 with legs 5 of a plate-like support 6 each, which are provided with bores 7 for fastening a support plate 27.
  • the support plate 27 serves to support or support the forearms and is designed in the manner of a cushion, in which a resilient layer of rubber or the like can be provided.
  • each leg 3, 5, as shown in FIG. 2 for the leg 5 of a carrier 6, has a pin 7 on each side, which in this exemplary embodiment has a square cross section.
  • the pin 7 on the right in the drawing can also be equipped with lamellae 8 in the same way.
  • All lamellae 8 have a central opening which enables them to be plugged onto the pin 7. However, this opening is designed differently in the lamellae 8. Every second lamella 8a has an opening which corresponds exactly to the cross section of the pin 7, so that these lamellae 8a are secured in a rotationally fixed manner on the pin 7.
  • the other slats 8b have an opening which is the same or slightly larger than the corner dimension of the pin 7. This means that the slats 8b can rotate on the pin 7.
  • the lamellae 8a have a circular outer contour in this exemplary embodiment.
  • the slats 8b now have an outer contour that differs from the slats 8a.
  • the outer contour of the slats 8b can, for example, be square, the corners of the square outer contour being rounded if necessary.
  • the side length of these squares is approximately equal to the diameter of the slats 8a.
  • the slats 8b can also have a base area, which is composed of a semicircle and a rectangle.
  • the pin 7 equipped with the lamellae 8 now projects into a stepped recess 9 of an end piece 10.
  • the smaller cross section of the recess 9 is slightly larger than the corner dimension of the pin 7, so that the pin 7 can rotate in the recess 9.
  • the larger cross section of the Recess 9 corresponds exactly to the base of the slats 8b, so that they are secured in the recess 9 in a rotationally fixed manner.
  • the cross section of the recess 11 in the spacer 12 corresponds exactly to the larger cross section of the stepped recess 9 in the end piece 10.
  • all pins 7 are alternately fitted with the different lamellae 8a, 8b and inserted into the corresponding cutouts 9, 11. All the slats 8a are secured in a rotationally fixed manner on the pin 7, while all the slats 8b are held in the recesses 9, 11 in a rotationally fixed manner.
  • the levers 1 and the supports 6 can be freely rotated or pivoted within the scope of their predetermined pivoting range.
  • the two end pieces 13 can now be braced against one another by means of a clamping element 13, for example a screw. The result of this is that all the slats 8 are braced against one another and the position of the supports 6 with the support plate 27 to the levers 1 fastened on the table or worktop 24 is thus secured in a precisely predetermined position.
  • the tensioning element 13 which is designed as a screw, can be divided and consist of a threaded pin and a sleeve partially fitted thereon.
  • the rotary connection of the sleeve with the pin is carried out by a plug inserted, the pin for receiving the pin may have an elongated hole extending in the axial direction. This makes it possible to limit the opening movement of the end pieces 10 and thus to ensure that the slats 8 cannot leave the corresponding recess 9, 11.
  • the clamping element 13 is not designed as a screw.
  • the clamping element 13 is guided in a sleeve 28, which is supported at one end on the right end piece 10 in the drawing, while the other end carries a clamping plate 29 through which the clamping element 13 projects.
  • the clamping element 13 can be fork-shaped and have a bore 30 for a pin 31.
  • a clamping lever 32 is now mounted on the pin 31, which has a clamping surface 33 acting as an eccentric and which can be pivoted about the pin 31 in the direction of the arrow 34. During this swiveling movement, the tensioning element 13 is axially displaced and thus the lamellae 8a, 8b are clamped or braced against one another.
  • Figs. 1 and 3 are usually only suitable for right-handed people.
  • the clamping element 13 would have to be arranged on the left side of the device, which makes two different devices necessary.
  • 5 shows a solution that can be operated equally well by both right-handed and left-handed people.
  • the clamping element 13 is divided into a left part 13a and a right part 13b, both of which are guided on a plate 14.
  • Each part 13a, 13b has a forked end with a pin 15 and receives a common disc 17 rotatable about an axis 16.
  • the disk 17 is provided with two grooves 18 acting as eccentrics, into which the pins 15 are inserted.
  • the slats 8 can have a different shape or base. However, it must always be ensured that the slats 8a are secured against rotation on the pin 7 and the slats 8b are secured against rotation in the recess 9, 11. If the clamping with a package of lamellae 8 per leg 3.5 is sufficient, the leg 3.5 has a pin 7 only on one side and the associated recess 9 or 11, usually it is the recess 11, is then omitted.
  • the levers 1, which are used to fasten the device to a table or worktop can be designed in a different way and consequently can also be fastened differently to the table or worktop.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

The invention relates to an assembly for supporting at least one forearm during the operation of keyboards, during assembly work or the like, comprising at least one lever which can be fixed to a table- or worktop and is connected via at least one lockable joint with a pivotable carrier for receiving a support plate, the joint having two endpieces which can be braced with respect to each other and between which are arranged a plurality of lamellae secured alternately to different joint arms so as to be fixed in terms of rotation. In order that the previous fixing process of the lamellae assigned to the fixing bow and the support plate can be dispensed with and the lamellae, or their functioning, are no longer impaired by dust from dirt and in order to improve the visual impression, the carrier (6) and the lever (1) have at least one pin (7) located on the joint axis and intended for receiving the lamellae (8), every second lamella (8a) is secured so as to be fixed in terms of rotation on the pin (7), the pin (7) reaches together with all of the lamellae (8) into a recess (9) of one endpiece (10) and in the recess (9) the other lamellae (8b) are secured against rotation. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Abstützung mindestens eines Unterarmes bei der Betätigung von Tastaturen, bei Montagearbeiten oder dgl. bestehend aus mindestens einem an einer Tisch- bzw. Arbeitsplatte befestigbaren Bügel, der über mindestens ein feststellbares Gelenk mit einer schwenkbarem Träger zur Aufnahme einer Abstützplatte verbunden ist, wobei das Gelenk zwei gegeneinander verspannbare Endstücke aufweist, zwischen denen mehrere wechselweise an unterschiedlichen Gelenkarmen drehfest gesicherte Lamellen angeordnet sin.The invention relates to a device for supporting at least one forearm when actuating keyboards, during assembly work or the like. Consisting of at least one bracket which can be fastened to a table or worktop and which has at least one lockable joint with a pivotable carrier for receiving a Support plate is connected, wherein the joint has two mutually braceable end pieces, between which several lamellae are arranged alternately secured on different joint arms.

Es sind Vorrichtungen bekannt, die zur Abstützung der Unterarme bei der Betätigung von Tastaturen, bei Montagearbeiten oder dgl. dienen. Diese Vorrichtungen bestehen aus einer meist gepolsterten Abstützplatte, die an einer Tisch- bzw. Arbeitsplatte befestigt wird. Dabei muß die Abstützplatte in Abhängigkeit von der Körpergröße und der Arbeitsposition der Unterarme eine unterschiedliche Höhenlage und gegebenfalls auch eine unterschiedliche Neigung einnehmen. Um die Höhenlage und die Neigung der Abstützplatte verändern zu können, ist dieselbe mindestens über ein feststellbares Doppelgelenk mit einem Bügel verbunden, der an der Tisch- bzw. Arbeitsplatte befestigbar ist. Dabei wird das Doppelgelenk einerseits durch Lamellen gebildet, die mit einem vorgegebenen Abstand voneinander sowohl an dem Bügel als auch an der Abstützplatte befestigt sind. Andererseits befinden sich zwischen diesen drehfest gesicherten Lamellen als schwenkbarer Hebel wirkende Lamellen, die mit den drehfesten Lamellen über eine Achse schwenkbar verbunden sind. Beiderseits des so gebildeten Lamellenpaketes befinden sich gegeneinander verspannbare Endstücke, über die die einzelnen Lamellen gegeneinander zusammengepreßt bzw. verklemmt werden. Im ungespannten Zustand kann nun die Abstützplatte in eine geeignete Höhen- und Neigungslage gebracht und anschließend durch das Zusammenpreßen der Lamellen in dieser Lage gesichert werden. Als nachteilig wird bei einer solchen Vorrichtung angesehen, daß die einzelnen Lamellen getrennt an dem Befestigungsbügel und der Abstützplatte, meist durch Schweißung, angeschlossen werden müssen. Andererseits sind die Lamellen frei zugänglich, so daß sich zwischen dieselben Staub und Schmutz festsetzen kann, der den Klemmvorgang beeinträchtigt. Schließlich ist auch zu berücksichtigen, daß die sichtbaren Lamellen der Vorrichtung ein unschönes Aussehen verleihen.Devices are known which serve to support the forearms when operating keyboards, during assembly work or the like. These devices consist of a mostly padded support plate that is attached to a table or worktop. The support plate must have a different height and, if necessary, a different inclination depending on the body size and the working position of the forearms. In order to be able to change the height and the inclination of the support plate, it is connected at least via a lockable double joint to a bracket which can be attached to the table or worktop. The double joint is formed on the one hand by lamellae, which are fixed at a predetermined distance from each other both on the bracket and on the support plate. On the other hand, between these non-rotatably secured slats there are slats which act as pivotable levers and which are pivotally connected to the non-rotatable slats via an axis. On both sides of the plate pack thus formed there are end pieces which can be braced against one another and via which the individual plates are pressed together or clamped together. In the untensioned state, the support plate can now be brought into a suitable height and inclination position and then secured in this position by pressing the slats together. A disadvantage of such a device is that the individual lamellae have to be connected separately to the mounting bracket and the support plate, usually by welding. On the other hand, the slats are freely accessible, so that dust and dirt can adhere between them, which impairs the clamping process. Finally, it should also be taken into account that the visible lamellae give the device an unsightly appearance.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Vorrichtung zur Abstützung mindestens eines Unterarmes bei der Betätigung von Tastaturen, bei Montagearbeiten oder dgl. so auszubilden, daß der bisherige Befestigungsvorgang der dem Befestigungsbügel und der Abstützplatte zugeordneten Lamellen entfallen kann und daß die Lamellen bzw. deren Funktion nicht mehr von Staub von Schmutz beeinträchtigt werden. Darüber hinaus soll der optische Eindruck einer solchen Vorrichtung verbessert werden.The invention is therefore based on the object of designing a device for supporting at least one forearm when operating keyboards, during assembly work or the like so that the previous fastening process of the slats assigned to the fastening bracket and the support plate can be omitted and that the slats or their Function no longer affected by dust from dirt. In addition, the visual impression of such a device is to be improved.

Zur Lösung dieser Aufgabe wird gemäß der Erfindung bei einer Vorrichtung der eingangs beschriebenen Gattung vorgeschlagen, daß der Träger und der Bügel mindestens einen in der Gelenkachse befindlichen Zapfen zur Aufnahme der Lamellen besitzen, daß jede zweite Lamelle drehfest auf dem Zapfen gesichert ist, daß der Zapfen zusammen mit allen Lamellen in eine Aussparung eines Endstückes ragt und daß in der Aussparung die anderen Lamellen gegen Drehung gesichert sind.To solve this problem it is proposed according to the invention in a device of the type described above that the carrier and the bracket have at least one pin located in the hinge axis for receiving the slats, that every second slat is secured against rotation on the pin that the pin protrudes together with all slats in a recess of an end piece and that in the recess the other slats are secured against rotation.

Durch diese Ausgestaltung ist eine besondere Befestigung der dem Befestigungsbügel und der Abstützplatte zugeordneten Lamellen nicht mehr erforderlich, so daß sich der Montagevorgang bei der Herstellung einer solchen Vorrichtung verringert. Die bisher bei einem Doppelgelenk als Hebel wirkenden Lamellen können entfallen. Die Lamellen befinden sich jetzt alle in einer geschlossenen Aussparung, so daß ihre Klemmfunktion nicht mehr von Staub und Schmutz beeinträchtigt wird. Durch die verdeckte Anordnung der Lamellen besitzt die Vorrichtung ein erheblich verbessertes Aussehen.With this configuration, a special fastening of the lamellae assigned to the fastening bracket and the support plate is no longer necessary, so that the assembly process in the manufacture of such a device is reduced. The slats that previously acted as levers in a double joint can be dispensed with. The slats are now all in a closed recess so that their clamping function is no longer affected by dust and dirt. Due to the concealed arrangement of the slats, the device has a significantly improved appearance.

Die Erfindung wird nachfolgend anhand eines in einer Zeichnung dargestellten Ausführungsbeispieles näher erläutert. Dabei zeigen

Fig. 1
eine Aufrißdarstellung einer Vorrichtung gemäß der Erfindung,
Fig. 2
einen vergrößerten Schnitt durch ein Gelenk der Vorrichtung der Fig. 1,
Fig. 3
eine Seitenansicht der an einer Tisch- bzw. Arbeitsplatte befestigten Vorrichtung,
Fig. 4
eine als Exzenter ausgebildete Spannvorrichtung und
Fig. 5
eine andere, ebenfalls exzenterartig wirkende Spannvorrichtung.
The invention is explained in more detail below with reference to an embodiment shown in a drawing. Show
Fig. 1
2 shows an elevation view of a device according to the invention,
Fig. 2
2 shows an enlarged section through a joint of the device of FIG. 1,
Fig. 3
a side view of the device attached to a table or worktop,
Fig. 4
a clamping device designed as an eccentric and
Fig. 5
another, also eccentric clamping device.

Die in der Fig. 1 der Zeichnung dargestellte Vorrichtung dient zur Abstützung mindestens eines Unterarmes bei der Betätigung einer Tastatur, bei Montagearbeiten oder dgl. an einer Tisch- bzw. Arbeitsplatte. Dabei besteht die Vorrichtung aus zwei beispielsweise einen T-förmigen Querschnitt aufweisenden Hebeln 1, die im Bereich ihrer Stege 2 als Klemmbügel 22 ausgebildet und beispielsweise mittels Schrauben 23 an einer Tisch- bzw. Arbeitsplatte 24 durch Klemmung befestigt sind. Die Schrauben 23 sind in einem Ansatz 25 drehbar eingesetzt und tragen an ihrem oberen bzw. freien Ende eine mit einer Rändelung versehene Platte 26, über die die Schraube 23 gedreht und damit die Vorrichtung an der Tisch- bzw. Arbeitsplatte festgeklemmt werden kann (Fig. 3). Die Schenkel 3 der Hebel 1 sind über ein Doppelgelenk 4 gelenkig mit Schenkeln 5 jeweils eines plattenartigen Trägers 6 verbunden, die mit Bohrungen 7 zur Befestigung einer Abstützplatte 27 versehen sind. Die Abstützplatte 27 dient zur Auflage bzw. Abstützung der Unterarme und ist polsterartig ausgestaltet, wobei in derselben eine federnde Schicht aus Gummi oder dgl. vorgesehen sein kann.The device shown in FIG. 1 of the drawing serves to support at least one forearm when operating a keyboard, during assembly work or the like on a table or worktop. The device consists of two levers 1, for example with a T-shaped cross section, which are designed in the area of their webs 2 as clamping brackets 22 and are fastened, for example by means of screws 23, to a table or worktop 24 by clamping. The screws 23 are rotatably inserted in a shoulder 25 and carry at their upper or free end a knurled plate 26, by means of which the screw 23 is rotated and the device can thus be clamped to the table or worktop (FIG. 3). The legs 3 of the levers 1 are articulated via a double joint 4 with legs 5 of a plate-like support 6 each, which are provided with bores 7 for fastening a support plate 27. The support plate 27 serves to support or support the forearms and is designed in the manner of a cushion, in which a resilient layer of rubber or the like can be provided.

Im dargestellten Ausführungsbeispiel besitzt jeder Schenkel 3,5, wie es anhand der Fig. 2 bei dem Schenkel 5 eines Trägers 6 gezeigt ist, an jeder Seite einen Zapfen 7, der in diesem Ausführungsbeispiel einen quadratischen Querschnitt besitzt. Auf jedem Zapfen 7 sind mehrere Lamellen 8 angeordnet, wobei zur besseren Darstellung in der Figur 2 diese Lamellen 8 nur auf dem linken Zapfen 7 gezeichnet sind. Auch der in der Zeichnung rechte Zapfen 7 kann in gleicher Weise mit Lamellen 8 bestückt sein.In the exemplary embodiment shown, each leg 3, 5, as shown in FIG. 2 for the leg 5 of a carrier 6, has a pin 7 on each side, which in this exemplary embodiment has a square cross section. There are several lamellae on each pin 7 8 arranged, these slats 8 are only drawn on the left pin 7 for better illustration in Figure 2. The pin 7 on the right in the drawing can also be equipped with lamellae 8 in the same way.

Alle Lamellen 8 besitzen eine zentrische Öffnung, die ein Aufstecken auf den Zapfen 7 ermöglicht. Dabei ist diese Öffnung jedoch bei den Lamellen 8 unterschiedlich ausgebildet. Jede zweite Lamelle 8a besitzt eine Öffnung, die genau mit dem Querschnitt des Zapfens 7 übereinstimmt, so daß diese Lamellen 8a drehfest auf dem Zapfen 7 gesichert sind. Die anderen Lamellen 8b besitzen eine Öffnung, die gleich oder geringfügig größer als das Eckmaß des Zapfens 7 ist. Dies bedeutet, daß sich die Lamellen 8b auf den Zapfen 7 drehen können.All lamellae 8 have a central opening which enables them to be plugged onto the pin 7. However, this opening is designed differently in the lamellae 8. Every second lamella 8a has an opening which corresponds exactly to the cross section of the pin 7, so that these lamellae 8a are secured in a rotationally fixed manner on the pin 7. The other slats 8b have an opening which is the same or slightly larger than the corner dimension of the pin 7. This means that the slats 8b can rotate on the pin 7.

Die Lamellen 8a besitzen in diesem Ausführungsbeispiel eine kreisförmige Außenkontur. Die Lamellen 8b weisen nun eine von den Lamellen 8a abweichende Außenkontur auf. Die Außenkontur der Lamellen 8b kann beispielsweise quadratisch sein, wobei bedarfsweise die Ecken der quadratischen Außenkontur abgerundet sind. Dabei ist die Seitenlänge dieser Quadrate etwa gleich dem Durchmesser der Lamellen 8a. Die Lamellen 8b können auch eine Grundfläche besitzen, die sich aus einem Halbkreis und einem Rechteck zusammensetzt.The lamellae 8a have a circular outer contour in this exemplary embodiment. The slats 8b now have an outer contour that differs from the slats 8a. The outer contour of the slats 8b can, for example, be square, the corners of the square outer contour being rounded if necessary. The side length of these squares is approximately equal to the diameter of the slats 8a. The slats 8b can also have a base area, which is composed of a semicircle and a rectangle.

Der mit den Lamellen 8 bestückte Zapfen 7 ragt nun in eine abgestufte Aussparung 9 eines Endstückes 10. Der kleinere Querschnitt der Aussparung 9 ist dabei geringfügig größer als das Eckmaß des Zapfens 7, so daß sich der Zapfen 7 in der Aussparung 9 drehen kann. Der größere Querschnitt der Aussparung 9 entspricht genau der Grundfläche der Lamellen 8b, so daß dieselben drehfest in der Aussparung 9 gesichert sind.The pin 7 equipped with the lamellae 8 now projects into a stepped recess 9 of an end piece 10. The smaller cross section of the recess 9 is slightly larger than the corner dimension of the pin 7, so that the pin 7 can rotate in the recess 9. The larger cross section of the Recess 9 corresponds exactly to the base of the slats 8b, so that they are secured in the recess 9 in a rotationally fixed manner.

Der in der Fig. 2 nicht mit Lamellen bestückte Zapfen 7 ragt in eine Aussparung 11 eines Distanzstückes 12, welches zwischen den benachbarten Schenkeln 3 bzw. 5 der Hebel 1 und der Träger 6 angeordet ist. Dabei entspricht der Querschnitt der Aussparung 11 im Distanzstück 12 genau dem größeren Querschnitt der abgestuften Aussparung 9 im Endstück 10.The pin 7, which is not equipped with lamellae in FIG. 2, projects into a recess 11 in a spacer 12, which is arranged between the adjacent legs 3 and 5 of the lever 1 and the carrier 6. The cross section of the recess 11 in the spacer 12 corresponds exactly to the larger cross section of the stepped recess 9 in the end piece 10.

Zur Bildung der Vorrichtung werden alle Zapfen 7 abwechselnd mit den unterschiedlichen Lamellen 8a,8b bestückt und in die entsprechenden Aussparungen 9,11 eingesteckt. Dabei sind alle Lamellen 8a drehfest auf den Zapfen 7 gesichert, während alle Lamellen 8b drehfest in den Aussparungen 9,11 gehalten sind. In einem sogenannten ungespannten Zustand können die Hebel 1 und die Träger 6 im Rahmen ihres vorgegebenen Schwenkbereiches frei gedreht bzw. geschwenkt werden. Über ein beispielsweise als Schraube ausgebildetes Spannelement 13 können nun die beiden Endstücke 13 gegeneinander verspannt werden. Dies hat zur Folge, daß auch alle Lamellen 8 gegeneinander verspannt werden und somit die Lage der Träger 6 mit der Abstützplatte 27 zu den auf der Tisch- bzw. Arbeitsplatte 24 befestigten Hebeln 1 in einer genau vorgegebenen Lage gesichert ist.To form the device, all pins 7 are alternately fitted with the different lamellae 8a, 8b and inserted into the corresponding cutouts 9, 11. All the slats 8a are secured in a rotationally fixed manner on the pin 7, while all the slats 8b are held in the recesses 9, 11 in a rotationally fixed manner. In a so-called untensioned state, the levers 1 and the supports 6 can be freely rotated or pivoted within the scope of their predetermined pivoting range. The two end pieces 13 can now be braced against one another by means of a clamping element 13, for example a screw. The result of this is that all the slats 8 are braced against one another and the position of the supports 6 with the support plate 27 to the levers 1 fastened on the table or worktop 24 is thus secured in a precisely predetermined position.

Bedarfsweise kann das als Schraube ausgebildete Spannelement 13 geteilt ausgebildet sein und aus einem mit Gewinde versehenen Stift und einer darauf teilweise aufgesteckten Hülse bestehen. Die Drehverbindung der Hülse mit dem Stift erfolgt durch einen durchgesteckten Zapfen, wobei der Stift zur Aufnahme des Zapfens ein in axialer Richtung verlaufendes Langloch aufweisen kann. Dadurch ist es möglich, die Öffnungsbewegung der Endstücke 10 zu begrenzen und somit sicherzustellen, daß die Lamellen 8 die entsprechende Aussparung 9,11 nicht verlassen können.If necessary, the tensioning element 13, which is designed as a screw, can be divided and consist of a threaded pin and a sleeve partially fitted thereon. The rotary connection of the sleeve with the pin is carried out by a plug inserted, the pin for receiving the pin may have an elongated hole extending in the axial direction. This makes it possible to limit the opening movement of the end pieces 10 and thus to ensure that the slats 8 cannot leave the corresponding recess 9, 11.

Gemäß der Darstellung der Fig. 4 ist das Spannelement 13 nicht als Schraube ausgebildet. Hier ist das Spannelement 13 in einer Hülse 28 geführt, die sich mit ihrem einen Ende an dem in der Zeichnung rechten Endstück 10 abstützt, während das andere Ende eine Spannplatte 29 trägt, durch die das Spannelement 13 hindurchragt. In diesem Bereich kann das Spannelement 13 gabelartig ausgebildet sein und eine Bohrung 30 für einen Zapfen 31 besitzen. Auf dem Zapfen 31 ist nun ein Spannhebel 32 gelagert, der eine als Exzenter wirkende Spannfläche 33 besitzt und der in Richtung des Pfeiles 34 um den Zapfen 31 geschwenkt werden kann. Bei diese Schwenkbewegung wird das Spannelement 13 axial verschoben und damit die Lamellen 8a, 8b gegeneinander verklemmt bzw. verspannt.4, the clamping element 13 is not designed as a screw. Here, the clamping element 13 is guided in a sleeve 28, which is supported at one end on the right end piece 10 in the drawing, while the other end carries a clamping plate 29 through which the clamping element 13 projects. In this area, the clamping element 13 can be fork-shaped and have a bore 30 for a pin 31. A clamping lever 32 is now mounted on the pin 31, which has a clamping surface 33 acting as an eccentric and which can be pivoted about the pin 31 in the direction of the arrow 34. During this swiveling movement, the tensioning element 13 is axially displaced and thus the lamellae 8a, 8b are clamped or braced against one another.

Die in den Fign. 1 und 3 dargestellten Spannmoglichkeiten sind normalerweise nur für Rechtshänder geeignet. Für Linkshänder müßte das Spannelement 13 aud der linken Seite der Vorrichtung angeordnet sein, was zwei unterschiedliche Vorrichtungen notwendig macht. Hier zeigt die Fig. 5 nun eine Lösung, die sowohl von Rechtshändern als auch von Linkshändern gleich gut betätigbar ist. Das Spannelement 13 ist dabei in ein linkes Teil 13a und ein rechtes Teil 13b unterteilt, die beide an einer Platte 14 geführt sind. Jedes Teil 13a, 13b besitzt ein gabelförmiges Ende mit einem Zapfen 15 und nimmt eine gemeinsame, um eine Achse 16 drehbare Scheibe 17 auf. Die Scheibe 17 ist mit zwei als Exzenter wirkenden Nuten 18 versehen, in die die Zapfen 15 eingesteckt sind. Bei einem Drehen der Scheibe 17 über einen Hebel 19 in Richtung des Pfeiles 20 werden die beiden Teile 13a, 13 des Spannelementes 13 in Richtung der beiden Pfeile verschoben werden und damit die Spannbewegung ausgeführt.The in Figs. 1 and 3 are usually only suitable for right-handed people. For left-handers, the clamping element 13 would have to be arranged on the left side of the device, which makes two different devices necessary. 5 shows a solution that can be operated equally well by both right-handed and left-handed people. The clamping element 13 is divided into a left part 13a and a right part 13b, both of which are guided on a plate 14. Each part 13a, 13b has a forked end with a pin 15 and receives a common disc 17 rotatable about an axis 16. The disk 17 is provided with two grooves 18 acting as eccentrics, into which the pins 15 are inserted. When the disk 17 is rotated via a lever 19 in the direction of the arrow 20, the two parts 13a, 13 of the tensioning element 13 are displaced in the direction of the two arrows and the tensioning movement is thus carried out.

In Abänderung des erläuterten Ausführungsbeispieles können die Lamellen 8 eine andere Form bzw. Grundfläche aufweisen. Dabei muß jedoch immer sichergestellt sein, daß die Lamellen 8a drehfest auf dem Zapfen 7 und die Lamellen 8b drehfest in der Aussparung 9,11 gesichert sind. Falls die Klemmung mit einem Paket aus Lamellen 8 pro Schenkel 3,5 ausreichend ist, weist der Schenkel 3,5 nur an einer Seite einen Zapfen 7 auf und die dazugehörige Aussparung 9 oder 11, meist ist es die Aussparung 11, entfällt dann. Die Hebel 1, die zur Befestigung der Vorrichtung auf einer Tisch- oder Arbeitsplatte dienen, können in anderer Weise ausgestaltet und demzufolge auch anders an der Tisch- oder Arbeitsplatte befestigt werden.In a modification of the illustrated embodiment, the slats 8 can have a different shape or base. However, it must always be ensured that the slats 8a are secured against rotation on the pin 7 and the slats 8b are secured against rotation in the recess 9, 11. If the clamping with a package of lamellae 8 per leg 3.5 is sufficient, the leg 3.5 has a pin 7 only on one side and the associated recess 9 or 11, usually it is the recess 11, is then omitted. The levers 1, which are used to fasten the device to a table or worktop, can be designed in a different way and consequently can also be fastened differently to the table or worktop.

Claims (9)

Vorrichtung zur Abstützung mindestens eines Unterarmes bei der Betätigung von Tastaturen, bei Montagearbeiten oder dgl. bestehend aus mindestens einem an einer Tisch- bzw. Arbeitsplatte befestigbaren Hebel, der über mindestens ein feststellbares Gelenk mit einem schwenkbaren Träger zur Aufnahme einer Abstützplatte verbunden ist, wobei das Gelenk zwei gegeneinander verspannbare Endstücke aufweist, zwischen denen mehrere wechselweise an unterschiedlichen Gelenkarmen drehfest gesicherte Lamellen angeordnet sind,
dadurch gekennzeichnet,
daß der Träger (6) und der Hebel (1) mindestens einen in der Gelenkachse befindlichen Zapfen (7) zur Aufnahme der Lamellen (8) besitzen, daß jede zweite Lamelle (8a) drehfest auf dem Zapfen (7) gesichert ist, daß der Zapfen (7) zusammen mit allen Lamellen (8) in eine Aussparung (9) eines Endstückes (10) ragt und daß in der Aussparung (9) die anderen Lamellen (8b) gegen Drehung gesichert sind.Device for supporting at least one forearm when operating keyboards, during assembly work or the like. Consisting of at least one lever that can be fastened to a table or worktop, which is connected via at least one lockable joint to a pivotable carrier for receiving a support plate, the Joint has two end pieces which can be braced against one another, between which a plurality of lamellae secured alternately on different articulated arms are arranged,
characterized,
that the carrier (6) and the lever (1) have at least one pin (7) located in the hinge axis for receiving the lamellae (8), that every second lamella (8a) is secured against rotation on the pin (7), that the Pin (7) together with all the lamellae (8) protrudes into a recess (9) of an end piece (10) and that the other lamellae (8b) are secured against rotation in the recess (9). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß der Träger (6) und der Bügel (1) beidseitig einen Zapfen (7) besitzen.Device according to claim 1,
characterized,
that the carrier (6) and the bracket (1) have a pin (7) on both sides. Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß der Zapfen (7) einen eckigen Querschnitt aufweist und die auf demselben drehfesten Lamellen (8a) eine Öffnung mit dem gleichen Querschnitt besitzen.Device according to claim 1 or 2,
characterized,
that the pin (7) has an angular cross section and the non-rotatable lamellae (8a) have an opening with the same cross section. Vorrichtung nach Anspruch 3,
dadurch gekennzeichnet,
daß der Zapfen (7) einen quadratischen oder sechseckigen Querschnitt besitzt.Device according to claim 3,
characterized,
that the pin (7) has a square or hexagonal cross section. Vorrichtung nach mindestens einem der Ansprüche 1 - 4,
dadurch gekennzeichnet,
daß die Aussparung (9,11) einen eckigen oder ovalen Querschnitt besitzt und die in derselben drehfesten Lamellen (8b) die gleiche Grundfläche aufweisen.Device according to at least one of claims 1-4,
characterized,
that the recess (9, 11) has an angular or oval cross-section and the non-rotatable fins (8b) have the same base area. Vorrichtung nach Anspruch 5,
dadurch gekennzeichnet,
daß die Ecken der Aussparung (9,11) und der Lamellen (8b) abgerundet sind.Device according to claim 5,
characterized,
that the corners of the recess (9, 11) and the slats (8b) are rounded. Vorrichtung nach mindestens einem der Ansprüche 1 - 6,
dadurch gekennzeichnet,
daß zwischen den beiden Endstücken (10) ein Distanzstück (12) angeordnet ist.Device according to at least one of claims 1-6,
characterized,
that a spacer (12) is arranged between the two end pieces (10). Vorrichtung nach Anspruch 7,
dadurch gekennzeichnet,
daß das Distanzstück (12) zumindest an einer Stirnfläche ebenfalls eine Aussparung (11) aufweist.Device according to claim 7,
characterized,
that the spacer (12) also has a recess (11) at least on one end face. Vorrichtung nach mindestens einem der Ansprüche 1 - 8,
dadurch gekennzeichnet,
daß die Lamellen (8) durch eine Schraube oder einen Exzenter gegeneinander, gegen die Endstücke (10) und gegebenenfalls gegen das Distanzstück (12) festklemmbar sind.Device according to at least one of claims 1-8,
characterized,
that the lamellae (8) can be clamped against one another by a screw or an eccentric, against the end pieces (10) and optionally against the spacer (12).
EP94111465A 1993-07-31 1994-07-22 Support assembly Withdrawn EP0639431A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9311467U DE9311467U1 (en) 1993-07-31 1993-07-31 Support device
DE9311467U 1993-07-31

Publications (1)

Publication Number Publication Date
EP0639431A1 true EP0639431A1 (en) 1995-02-22

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ID=6896272

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EP (1) EP0639431A1 (en)
CA (1) CA2129181A1 (en)
DE (1) DE9311467U1 (en)

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DE9311467U1 (en) 1993-10-07
US5402972A (en) 1995-04-04

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