DK149545B - CHAIR INCLUDING SEEDS, THE GIRL AND BONE - Google Patents

Description

- i - 149545

The invention relates to a chair comprising a seat / backrest and leg-like side pieces.

Such chairs are well known / especially such chairs where a metal or wood frame is attached to the seat and / or backrest, which base constitutes the legs, so that a detailed mention of these known chairs must be assumed to be superfluous.

However, a number of disadvantages are associated with these well-known chairs, which are manifested both during manufacture and during use.

The manufacturing disadvantages are mainly due to the fact that a chair after 10 parts manufacture, in addition to the necessary finishing work, must be assembled with a heavy base, which both burdens the manufacturing costs with an unfavorable result for the price and increases the weight, while at the same time increasing the material thickness due to necessary reinforcements. is not always optimal, which has a negative impact on eg.

15 material utilization, making the chair heavy and difficult to transport.

The disadvantages of use are mainly caused by the design of the chair, since the stability of the chair due to the anisotropy of the material and separately produced base is often deficient. It is, for example. difficult to fasten wood screws in workpieces of small material thickness, and the use of wooden bolts or rivets provides surface engagement on the chair, which increases both manufacturing costs and reduces the possibility of efficient cleaning. In addition, as a result of the use of several different materials and their different aging rates, such a chair frequently presents robustness and stability problems and becomes relatively unusable, which, as previously stated, the chair due to joints and corners is often difficult to clean. In addition, the base tinder a leg bearing chair is subject to great wear, especially when the chair is heavy.

It is the object of the present invention to provide a chair of the kind set forth at the outset in which the above-mentioned disadvantages are effectively countered.

This object is solved according to the invention in that the chair is made by bending one piece of flat material, which flat piece of material is preferably anisotropic or laminated and of substantially uniform thickness. a variety of advantages in terms of assembly, strength, price, material utilization, weight and transport. Since the chair is made in one piece, it does not need to be assembled, which saves working time during manufacture. With the design according to the invention, the chair should neither be provided with reinforcements, so that the material utilization becomes optimal, both because the thickness can be kept uniform and because by a suitable arrangement of the year in the veneer, a large static strength can be achieved by a small material consumption. In addition, the shape of the blank, i.e. the veneer 10 prior to gluing and pressing, allows for efficient utilization of material webs or surfaces. Due to the small material consumption of relatively light materials, the weight is reduced accordingly, which also has an impact on transport and storage in stock. Due to the mediocre design of the legs in connection with the small weight, 15 good use characteristics and a high measure of user comfort are achieved. However, in a special design of the chair as a rocking chair, the legs can be convexly curved to form threads. A further advantage of the chair according to the invention consists in the fact that the use of one material achieves both uniform wear, a robust chair and a homogeneous finishing of the chair, 20 for example. no more varnish types should be used for varnishing e.g. tree respectively. metal. This saves time and reduces the cost of manufacturing, and the finished product presents a uniform surface for the user, which is easy to clean due to the compact design of the chair. In this way, it is inconceivable to use the chair in the hospital sector or other places where there are high hygiene requirements, eg. in the food industry.

The invention will now be explained in more detail by way of example with reference to the accompanying drawings. The drawing shows in: FIG. 1 is a front view of a chair according to the invention.

FIG. 2 the same, seen from the side.

FIG. 3 is a perspective view of a chair according to the invention; FIG. 4 shows a blank from which a chair can be produced, with the finished outline of the chair outlined in dotted lines.

One of a blank 4 of multilayer veneers, e.g. plywood made from 35 chairs has a seating surface 1 and a backrest 2, as well as legs 3, which are formed by bending, lateral extensions of the seating surface 1.

In the embodiment shown, the seat surface extensions are bent slightly less than 90 * / eg. 80 * - 85 *, in relation to an imaginary line between the highest points of the seating surface, but for reasons of chair stability it is also possible to flex these extensions less than 80 *.

A more detailed account of the manufacture and inclination of the backrest must be omitted here, since this ^ is considered generally known.

In FIG. 4, the finished outline of the chair is indicated on the blank 4 with a dotted line. From this it appears that the waste in the manufacture of the chair is quite small, estimated to be a few percent.

The material for the manufacture of the chair according to one embodiment is made up essentially of veneer, namely an outer veneer of, for example, · knife-cut hardwood veneer in a thickness of e.g. 0.7 mm as well as an insert veneer 15 of e.g. peeled beech veneer in a thickness of e.g. 1 mm. In a preferred embodiment of the chair according to the invention, two layers of outer veneer and 6 layers of inlay veneer are used which are arranged so that the direction of the veneer in layers V, I, III, XV and VI is substantially parallel to the axis of symmetry of the blank, while in layers II and V V lies perpendicular to the axis of symmetry. With this arrangement of the year direction, it is taken into account that the greatest loads of a chair influence it parallel to the axis of symmetry, since the veneer can absorb high tractive forces just in the year direction. As a result, the laminate veneer essentially absorbs the forces that affect the chair during use, while the veneer takes on a more decorative role. The direction of the year in the outer veneer is not previously bound to one particular direction and can therefore be selected during the 4 synthesis for example. purely decorative effects.

The weight of the finished chair is almost 6 kg, which is a weight reduction of just over 30% compared to previously known chairs, which weigh at least 30 kg. As a result of this weight reduction, the chair according to the invention can be manufactured without separate handles or recesses which necessitate the use of heavier chairs. This means that the chair will at least become cheaper to manufacture, as the application of such handles will increase manufacturing costs.

In the selected embodiments, the chair according to the invention is made of veneer, but other materials may also be involved.

Where outdoor use is required, the chair can e.g. manufactured by e.g. fiberglass reinforced plastic, of a spot welded wire mesh, or of a metal plate, e.g. aluminum.

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