NL1030423C2 - Upright armrest work surface. - Google Patents

Description

Upright armrest work surface

Eyes

When working on a horizontal table top while sitting or standing, the neck and head are especially slightly bent and the forearms are usually only supported by the wrists and hands.

A somewhat bent posture and no or insufficient possibilities to support the elbows / forearms are each individually or collectively an extra burden on the neck, the shoulders and the back. The consequences of this extra load are often fatigue occurring earlier and / or the experience of insufficient comfort when carrying out the work with what is on the table top. Moreover, the risk of pain symptoms increases. The productivity can be lower.

15

A somewhat bent posture has many causes, the most important of which are: the distance between the eyes and the object to be viewed or read is too large, the reading angle too small and / or the weak contrasts. If one or more of these circumstances occur, there is a need to slightly bend the head forward. The head then comes a bit for the trunk and the extra load for the neck and back is the result.

Already in the Middle Ages a solution was found - partly - for this. They worked on a sloping work surface, a so-called 25 desk.

Elbows

The weight of the arms and the shoulder girdle is carried by the back when the underside of the elbows / lower arms cannot support the sitting or standing. Do the elbows and / or forearms rest on something that relieves the shoulders, neck and back to a considerable extent. The importance of elbow support was acknowledged long ago with the introduction of height-adjustable armrests for chairs. Quite recently, the support options with the armrests have been expanded with the armrests that can also be adjusted in mutual distance. The surface area of the armrests also increased.

1030423 2

The options for elbow support with the armrests of a chair that are adjustable in height and possibly also in mutual distance are not optimal.

One part of the forearm with the wrists lies on the table and the other part of the forearm with the elbow rests on the armrest of the chair. The most comfort usually offers the position of the elbows against the trunk. For this reason the mutual distance between the armrests must be as small as possible.

A drawback of a small mutual distance between the armrests 10 of a chair is the hindrance when standing up and sitting down. The torso and the somewhat wider hips must be able to get between the two armrests. Another drawback is that the forearms with the elbows and the wrists receive support on two separate parts. The wrists on the tabletop and the elbows on the armrests of the chair.

15 A solution to this has been found several hundred years ago. A recess was made in the tabletop - as a rule a segment of a circle - so that the elbows in front of and next to the trunk can rest on the parts next to the recess on the tabletop.

The place where the user wants to find support for the elbows at the recess in the tabletop depends on several factors, the most important of which are: the nature of the work to be performed, the physique and / or what one is used to.

The device with an inclined working surface and a recess for the torso and possibilities for supporting the elbows is known from | i

International Application Number PCT / US099 / 27431 and to a lesser extent PCT / USO0 / 00369, both from Edwin P. Lochridge, 452 Ridgwood Road,

Atlanta USA. The width of the recess in the tabletop is not adjustable with this known device and the example of the fixed distance is mentioned in the description as 45 cm. The inclination of the table top can be adjusted in steps. Furthermore, no description is given: • the depth of the recess • the depth of the tabletop for the user is adjusted to the combination of a separate keyboard (and possibly a mouse) and a separate screen • the leg and foot space, these dimensions are only with ample room to derive margins from the figures.

i i 3

The object of this invention, when working with what is on a tabletop (for example a laptop), is to considerably extend and / or to improve the possibilities for the more upright posture of the head and the support of the forearms and the hands. guarantees through the combination of: the angle of the worktop with the horizontal is adjustable between 0 ° and 30 ° or between 7 ° and 17 ° or fixed about 11 °, the width of the recess in the worktop is fixed or by the user adjustable over a path, the length and width of the supporting surfaces on either side of the hull is fixed or adjustable.

The worksheet and what goes with it in order to optimally use the abovementioned possibilities are mentioned in the figures. Table 1 belongs to the figures.

The invention will be explained in more detail below with reference to exemplary embodiments shown in the figures and to the construction of the invention, without limiting the implementation thereto.

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Figure 1 schematically shows a side view of the work surface, armrests, legroom, etc. with references to the subject to which they relate. Figure 2 shows schematically a front view of the worksheet and so on with the references.

Figure 3 schematically shows a top view detail of the armrests with the references.

The worktop adjustment can be integrated into a table or be designed as a separate accessory for a suitable table (suitable depends mainly on the tilt safety of the combination table and accessory, the worktop height, the leg and foot space). The table and accessories then have the dimensions and the angles of the fixed table version or are comparable with this. With a provision (for example a suction cup) any type of accessory can be attached to a suitable table. All symbols mentioned in the table apply to the table version.

The use value of each type of accessory also depends on the characteristics of the table on which the accessory is placed. 4 then mainly concerns the table properties: the horizontal surface 1, worktop thickness on the B line 4, the legroom 5, the worktop height 6a and b, the footwell height 7, the footwell depth 8a and 8b, the legroom width 11 and the worktop width 12 .

5

The examples of the different accessory types are shown in Figures 4 to 7b. Fixed, non-collapsible or easy to dismantle with dimensions of approximately 60 cm or more wide and approximately 65 cm deep and approximately 16 cm high; fig.4.

10 Easy to assemble and dismantle with dimensions, ready for use of approximately 65 cm wide, approximately 65 cm deep and approximately 15 cm high, disassembled, the dimensions are approximately 65 cm by 25 cm and a height of approximately 3 cm; fig.5.

Easy to assemble, disassemble and reduce in size, ready to use, approximately 65 cm wide, approximately 65 cm deep and approximately 14 cm high, disassembled, the dimensions are approximately 35 cm by 23 cm and a height of approximately 5 cm; fig.6. Easy to assemble, dismantle and reduce with dimensions, ready to use of approximately 65 cm wide, approximately 65 cm deep and 14 cm high, disassembled, the dimensions are approximately 40 cm by approximately 30 cm and a height of approximately 11 cm, so that for example a laptop and some other documents can be transported in it; Fig. 7a and Fig. 7b.

The armrest construction can be rigid or movable in all versions.

The top of the armrests can be hard, comparable to a tabletop or the top of the armrest and possibly also the side on the side of the trunk is provided with upholstery and possibly an underlying cushion.

The top of the armrests are approximately in the same plane with the worktop or the top of the armrests is approximately parallel to the worktop and up to a few centimeters higher than the worktop surface or the part of the worktop where the appliance to be operated is located.

The B line, see figures 2 and 3, is a straight or curved line.

5, or

Subject in FIG. 1,2 and 3 minimum maximum if not adjustable 1 Horizontal surface 0 30 2 Sloping surface 20 40 3a Armrest length 5 45 20 3b Armrest width__4___12_ 4 Worktop thickness on B line 4 5 Legroom 50 6a Worktop height on B line, 35 90 73 sitting 6b Worktop height on B line, 80 132 114 standing 7 Foot space height 20 8a Foot space depth, sitting 20 + 20 8b Foot space depth, standing 20 9 Distance B line to points A1 and 15 15 A2 10 Armrest distance A1 - A2 26 48 adjustment tract between 11 Legroom width 35 · 50 12 Worktop width 30 80 α Slope angle worktop 0 ° 30 ° 11 ° β Armrest angle 0 90 60

Table 1 Dimensions in centimeters 1030423

Claims (4)

1 The characteristic of the upright armrest work surface is the combination of: a an inclined work surface with b approximately in the same plane the mutually adjustable arm supports and c sufficient leg and foot space This combination has a favorable effect on the physical load of especially the arms, the torso, the neck and the head when working while sitting or standing. The main causes of this effect are: the more vertical position of the head and the possibility of resting the arms and hands on the work surface and / or the armrests The device according to claim 1, characterized in that the short distance between the armrests and the shape thereof when starting up the worktop or when leaving it are not inconvenient, because the hips only pass through it in the horizontal direction . The device is suitable for sitting or standing with a laptop / notebook, a separate screen, a keyboard and possibly a mouse, reading and writing, fine and assembly work and so on. 30 1030423