DE202008006809U1 - Worktable for a computer workstation for long-term workers, both right-handed and left-handed - Google Patents

Abstract

One to avoid orthopedic Complaints about long-term work on the screen height-adjustable data processing workstation, called in the following worktop, characterized in that he has 5 functional areas (F1 to F5) that are proprioceptive for the defined Work tasks: mouse, keyboard and screen usage - from reference movements and reference attitude are derived and simultaneous operation for legal and left-handers enable. The 5 functional areas are limited by a table top area (6).

Description

Worktables more usual Type have a flat surface on, as needed, mouse, keyboard, screen, etc. attached can be.

at of the present invention interrupt proprioceptively derived Recesses for Keyboard, mouse and screen, as well as a proprioceptive derived Forearm support surface the flat plate. This arrangement prevents orthopedic discomfort while the working life.

The The present invention relates to a height-adjustable work table top, the for an ambidextrous operable computer or data processing workstation suitable and provided.

By Their design features make them capable of orthopedic discomfort while to avoid working life. This aim of the invention is with the subject-matter of the independent claim reached. Leave features advantageous development of the invention the dependent one claims remove.

definitions

The worktable according to the invention has a working surface with 5 functional surfaces, F1 to F5, whose localization and three-dimensionality are derived proprioceptively. The required space corresponds to the width of the keyboard width (F2), each with the function field, which is necessary for the operation of the mouse right (F3) and left (F4). The dimensions of the rest of the tabletop ( 6 ) are limited by the large gripping space. 1a / b

• a) Die Sitzhöhe (Sitzhöcker) entspricht ungefähr der Kniehöhe.
• b) Beinfreiheit
• c) Aufgerichtetes Becken, Wirbelsäule ausbalanciert, entspannte Kopfhaltung
• d) Lockerer Schultergürtel, Oberarme hängen
• e) Unterarme parallel zu Boden, Finger liegen entspannt auf Tischplatte
• Aus a–e resultiert die individuelle Arbeitshöhe. 2

The starting point for the proprioceptively derived areas is the reference attitude. This is the balanced, upright, sitting posture of the user, which can be maintained for a long time without much fatigue, with the resulting logical, simplest movements of the arms, hands and fingers. All other postures require more muscle power and more complex movements to maintain, and therefore, fatigue faster. The characteristics of this fatigue-free posture are:

• a) The seat height (seat hump) corresponds approximately to the knee height.
• b) legroom
• c) Upright pelvis, spine balanced, relaxed head posture
• d) Loose shoulder girdle, upper arms hanging
• e) forearms parallel to the floor, fingers relaxed on table top
• From a-e results the individual working height. 2

Physiologically, the dorsiflexion of the hand ( 3a / b) more strenuous than the palmar flexion, especially if it happens at repeated, short intervals for a long time. A working angle according to palmar guarantees a relaxed work on keyboard and mouse ( 3c / D).

The currently common Arrangement of the controls and form of mouse and keyboard lead through the resulting dorsiflexion of the hand for compression in the carpal bone area and to cramp the forearm muscles and ultimately to orthopedic Complaints.

reference position

The midsection of the user (N) (y) in reference position, the middle of the alphanumeric keyboard (H) coincide, the forefingers of right and left hand touch without tension in her reference attitude the letter "H".

1a / b

coordinates

The reference of these coordinates is man.
x axis means the right (+), left (-) direction
y-axis means the before (+), back (-) direction
z axis means the top (+), bottom (-) direction
xy plane corresponds to the plane parallel to the ground
xz plane corresponds to the plane perpendicular to the ground, left and right
zy level corresponds to the plane perpendicular to the ground, front and back.

Description of the working surface in the xy plane 1a / b

• a) Funktionsbereich 1 – xy Ebene – Unterarmauflagefläche Die Unterarmauflagefläche entspricht dem Bereich, der das Armgewicht beider Arme bei Bedienung von Tastatur und Maus unterstützt und ungefähr 2/3 der durchschnittlichen Unterarmlänge tief ist (y). Ihre x Dimension entspricht mindestens den Maßen, den die Zeigefinger bei den einfachsten Unterarmrotationsbewegungen von einer Mitte ausgehend nach rechts und links begrenzen.
• b) Funktionsbereich 2 – xy Ebene – Tastaturauflagefläche Dies ist der Auflageflächenanteil für die Tastatur. Die Maße der Tastaturen sind industriell vorgegeben, so dass die xy Dimension der Tastaturauflagefläche den Maßen der größten Tastaturen gerecht werden muss. Die Mitte der Buchstabentastatur (H) und die Referenzhaltung der Hände und damit die der Finger werden zur Deckung gebracht (Referenzposition).
• c) Funktionsbereiche 3 und 4 – xy Ebene – rechte und linke Mausauflageflachenanteile. Das ist der Platz, der zur Bedienung der Mäuse notwendig ist. Seine xy Dimensionen orientieren sich an der Größe handelsüblicher Mauspads, ihre Lokalisationen werden durch die Lage der Hände nach einfachster Unterarmrotationsbewegung, ausgehend von der Referenz-Körper-Handhaltung nach rechts bzw. nach links definiert. Da diese Funktionsbereiche rechts und links neben der Tastatur zu liegen kommen, wird bei Rechtshändern die linke, offene Mausablagefläche den Funktionsbereich 1 einschränken (5), bei Linkshändern, die rechte offene Fläche ebenso den Funktionsbereich 1 stören. Man kann jeweils den unbenutzten Funktionsbereich von 3 oder von 4 mit einem beidseitig nutzbaren Einsatz (E) so verschließen, dass die Tischoberfläche und lineare Integrität der Platte so wieder hergestellt sind, als wäre es ein einhändig bedienbarer Arbeitsplatz. Die Unterarmrotationsbewegung nach rechts beschreibt einen größeren Bogen als nach links, da die Mitte der Buchstabentastatur als Ausgangspunkt genommen wurde und bei der Bewegung nach rechts die Zahlentastatur (ZT) umgangen werden muss. Funktionsbereich 3 liegt rechts neben und etwas unterhalb der Zahlentastatur (ZT). Die rechte Begrenzung des Funktionsbereiches 2 entspricht der linken Begrenzung des Funktionsbereiches 3. Funktionsbereich 4 liegt links und etwas unterhalb neben der Buchstabentastatur. Da die Tastaturen verschiedene Dimensionen aufweisen, muss der Funktionsbereich 2 so gewählt werden, dass er alle Tastaturgrößen aufnehmen kann. Das führt bei kleineren Tastaturen dazu, dass ein Raum zwischen den Funktionsbereichen von 3 und 4 und den Grenzen der Tastatur entsteht. Also muss bei Rechtshändern die Tastatur die linke Begrenzung von Funktionsbereich 3 (1a) berühren, bei Linkshändern die Tastatur die rechte Begrenzung des Funktionsbereiches 4 berühren (1b). Die Körpermitte und Tastaturmitte (H) und Bildschirmmitte werden dann jeweils vor Arbeitsbeginn zur Deckung gebracht (y).
• d) Funktionsbereich 5 – xy Ebene – Bildschirmbereich (1a/b) Der Bereich, in dem der Bildschirm (B) mit Hilfe eines dreidimensional einstellbaren Halters aufgestellt wird, ist durch Analyse von Körperreferenzhaltung bei entsprechender ermüdungsarmer Kopfhaltung definiert. Der Bildschirm wird mittig zur Kopf-Körperhaltung im optimalen Sehabstand und aufgestellt (y). Dies ist ein Platz hinter der Tastatur in der xy Ebene
• e) Bereich 6 – xy Ebene – Tischplatte (1a/b) Dies ist ein individuell gestaltbarer Bereich, der die 5 Funktionseinheiten umgeben kann, aber durch seine Größe nicht ihre Benutzung stören darf. Er richtet sich nach dem persönlichen Geschmack, den vorhandenen Platzmöglichkeiten. Seine xy Dimensionen sollten jedoch die Maße des großen Greifraums nicht überschreiten. Auf ihm könnten Bilder, Blumen usw. aufgestellt werden oder er kann als Ablage für Vorlagen dienen.

The worktable according to the invention has in its surface 5 Proprioceptively derived functional areas that allow operation for both right and left-handers.

• a) Functional Area 1 - xy Level - Forearm Rest Area The forearm rest area corresponds to the area that supports the arm weight of both arms when operating the keyboard and mouse and is approximately 2/3 of the average forearm length deep (y). Its x dimension corresponds at least to the dimensions that limit the index fingers from the center to the right and left in the simplest forearm rotation movements.
• b) Functional area 2 - xy plane - keyboard pad This is the pad area for the keyboard. The dimensions of the keyboards are industrially predetermined, so that the xy dimension of the keyboard Aufla Fulfill the size of the largest keyboards must meet. The middle of the letter keyboard (H) and the reference position of the hands and thus the fingers are brought to coincidence (reference position).
• c) Functional areas 3 and 4 - xy plane - right and left mouse pad areas. This is the space necessary to operate the mice. Its xy dimensions are based on the size of commercially available mouse pads, their localizations are defined by the position of the hands after the simplest forearm rotation movement, starting from the reference body hand position to the right or to the left. Since these functional areas are located to the right and left of the keyboard, the left, open mouse tray will restrict the function area 1 for right-handers ( 5 ), in the case of left-handers, the right-hand open area also interferes with the functional area 1. You can close each of the unused functional area of 3 or 4 with a double-sided insert (E) so that the table surface and linear integrity of the plate are restored as if it were a single-handed workstation. The forearm rotation movement to the right describes a larger arc than to the left, since the middle of the alphabet keyboard has been taken as the starting point and the numeric keypad (ZT) must be bypassed when moving to the right. Function area 3 is located to the right and slightly below the numeric keypad (ZT). The right boundary of the functional area 2 corresponds to the left boundary of the functional area 3. Functional area 4 is located on the left and slightly below next to the letter keyboard. Since the keyboards have different dimensions, the functional area 2 must be chosen so that it can accommodate all keyboard sizes. For smaller keyboards, this results in a space between the functional areas of 3 and 4 and the boundaries of the keyboard. So for right-handed people, the keyboard must have the left boundary of function area 3 ( 1a ), in the case of left-handers the keyboard touches the right-hand boundary of the function area 4 ( 1b ). The center of the body and the center of the keyboard (H) and the center of the screen are then aligned before starting work (y).
• d) Function area 5 - xy level - screen area ( 1a / b) The area in which the screen (B) is set up by means of a three-dimensionally adjustable holder is defined by analysis of body reference posture with corresponding low-fat head posture. The screen is centered on the head posture at the optimal viewing distance and placed (y). This is a space behind the keyboard in the xy plane
• e) area 6 - xy level - table top ( 1a / b) This is a customizable area that can surround the 5 functional units but can not interfere with their use due to its size. It depends on the personal taste, the available space. His xy dimensions, however, should not exceed the dimensions of the large gripping space. Pictures, flowers, etc. could be placed on it or it can serve as a tray for originals.

Description of the working area in the zy level ( 2 )

• a) Functional area 1 - zy level - forearm support surface The Forearm support surface is horizontal. The individual working height should be chosen so that with gravitationally congruent forward movement of the upper body, the arms the body weight with support can.
• b) Functional areas 2, 3 and 4 - zy level - keyboard support surface The Keyboard support surface (F2) and the two mouse pads (F3 and F4) are thereby characterized in that they lie on a common surface, the deeper than the forearm support surface lies and slightly backwards and downwards around its front edge is inclined. The dimensions of Lowering correspond to the stress-free palmar flexion in the wrist. The angle of inclination arises when the finger movement vector is vertical to hit the keys. In this hand and finger arrangement can not orthopedic Problems (RSI) arise because the damaging continuous contraction of the Forearm muscles are eliminated.
• c) Function area 5 - zy level - screen area ( 2 ) The head-body reference posture determines the position of the eyeball, as each head posture corresponds to a low-fat eye posture. If the line of sight is to hit the screen in the center vertically and at the optimum viewing distance, its localization results from the angle of inclination of the head and the line of sight perpendicular to the angle of inclination in the region of low-fat eye movements. A three-dimensionally adjustable screen holder is used to fix the screen. The visual line is an imaginary line that starts from the root of the nose and is taken as a simplification for both visual lines.
• d) area 6 - zy Level - table top The remaining horizontal table shares have the same working height as the Functional area 1 where they merge seamlessly.

The workplace with the functional areas 1 to 5 and the remaining storage area 6 can out consist of a variety of materials, such as wood, glass, from a wood composite material, metal, plastic or a mix of several of these substances. Important for a flawless and trouble-free operation is sufficient stability against deflection, a firm fixation of the keyboard and the screen.

The in the above description, the not-to-scale sketches and the in the claims disclosed features of the invention can both individually, as well as in combination for the realization of the invention in its various embodiments be significant. The invention is not limited to those in the drawings and figures shown limited models. Rather, variants and treatises conceivable that make use of the inventive concept and therefore also fall within the scope of protection.

The Invention will be described below with reference to additional embodiments explains which under 1-7 explained and in the drawings can be shown and explained supplemented table top.

4 shows a proprioceptively constructed workplace exclusively for right-handed people, which was constructed from an area for VDU work and a surface perpendicular to it for conventional paperwork. It can be produced in mirror image, used for left-handers.

5 shows a conventional computer workstation in which only the functional areas 2 and 3 have been placed on the table surface. It is also conceivable arrangement in the extendable thrust under the table surface.

A Another embodiment may provide that the functional areas individually or in combination in any arbitrarily shaped work table can be installed.

F1

Forearm support surface

F2

Keyboard support surface portion the slope

F3

right Mouse surface area ratio the slope

F4

left Mouse surface area ratio the slope

e

Mirroring suitable insert for F3 or F4

H

center the letter keyboard

ZT

keypad

F5

functional area behind the keyboard to set up the screen

B

screen

6

table top

N

user

Claims (8)

A data processing input workstation which can be adjusted in height to avoid orthopedic complaints during long-term work on the screen, characterized in that it has 5 functional areas (F1 to F5) which are proprioceptive for the defined tasks: mouse, keyboard and screen use - from reference movements and Derived reference position and allow simultaneous operation for right and left-handers. The 5 functional areas are of a tabletop area ( 6 ) limited. Worktop according to claim 1, characterized in that the Forearm support surface (F1) 2/3 average forearm length deep (y) and corresponding the small gripping space is wide (x). Worktop according to claim 1 and 2, characterized that the keyboard support surface (F2), the mouse pad for right-handers (F3) and the mouse tray for left-handers (F4) on a lowered slope lying directly at the rear and lateral boundaries of 1 in full width from F3 outside to F4 outside. F3 is right next to the numeric keypad (ZT). (F4) is on the left next to the alphabet keyboard. Worktop according to Claims 1, 2 and 3 characterized that the slope both lowered, compared to the functional area F1, as well from y + to y- easily turned down (z-). Worktop according to claims 1 to 4, characterized in that the slope at the rear limit of F2 ends. It starts the area F5 in which the screen (B) accordingly the body reference attitude and the physiological conditions of the visual organ must become. Worktop according to the claims 1 to 5, characterized in that the functional area 2 designed so is that he is different in size Record keyboards and keep them stable when used right-handed and can fix in left hand use. Worktop according to claims 1 to 6, characterized in that the unneeded functional area for the Mouse operation - either 3 or 4, by a double-sided usable Use (E) can be concluded that an impairment the non-mouse hand on the forearm support surface is excluded and the linear integrity of the Worktop is restored as if it were a Einarmplatz would. Worktop according to claims 1 to 7 characterized characterized in that the insert can be used for both right and left, since both mouse areas have symmetrical recess. These inserts can be made in all colors.