DE19820841A1 - Folding chair - Google Patents

Abstract

A folding chair has a seat (A) which is linked to the base (C) by ribbons or rods (B), which are folded in half vertically when the chair is folded and pushed upwards. The supporting frame (D) is also divided, and is pushed forwards. A hinge strip holds the components together. The arm rests (G) are wider than the side sections (E,F), and extend outwards giving hand grips when the chair is folded.

Description

Folding chair with fixed seat, armrests and flexible, ergonomically designed shaped backrest.

Foldable with one hand, transportable, stackable.

Folding chairs of conventional design have a seat and an X-shaped bottom construction on EP 0 295 191 A1. You have e.g. T. backrests and / or arm lean. The seat is usually against the horizontal Folded backrest. If the chair is folded vertically, there is a seat and backrest made of fabric DE 30 18 912 A1. In the simplest case there is Single-rod chair with a movable seat (fishing seat). Should the chair will be stackable on armrests and the ergonomic shape of the Backrest dispenses with DE 38 00 597 C2. These chairs are because of their Construction features only emergency seats, unstable and offer limited fit Comfort. The usability is because of their filigree construction and design-related unfavorable leverage in the folding mechanism limited. Or the design is so massive that the furniture is heavy, and also when folded Condition remains bulky In all cases, folding requires the strength of both hands.

The invention specified in the protection claims 1-2.4 addresses the problem reasons to create a stable and comfortable folding chair that is versatile is settable. The opened, a stable, full, ergo nomically advantageous, classic seating furniture, but folded can be stacked and stored safely and easily in the smallest of spaces. He should also easy to use and with the simplest tools and commercial items Chen materials to be manufactured.

This problem is solved with the characteristics listed in protection claim 1-2.4 len solved.

This folding chair is characterized by its special stability and the favorable static utilization of the components. So increases at Bela the stability of the entire structure. This stabilizes ren under load is due to the favorable arrangement of the support frame (D) and its connection is achieved by means of fixed straps with the side parts.

Dimensions and proportions are possible when opened which offer excellent and classic seating comfort. It is remarkable here that the backrest is ergonomically shaped in the vertical and horizontal can be. Materials such as leather, plastic and ge are used here weave or wood. If one takes into account the fatigue stress when building a chair and the body's changing posture when sitting this option is desirable (see Adolf G. Schneck, The chair, pp. 5-9).

By connecting the seat (A) and the floor (C) through the Bars or bands (B) and the smooth-running mechanism is simple lifting the seat enables one-handed operation.

The flat design and the coordination of the semi-finished products used, it also enables folding in the smallest space. For example, when using 16 mm thick glued wood (materials such as metal, plastic, carbon, etc. are also conceivable) and correspondingly strong hinge straps, the stack height is only 64 mm on a base area of 400 mm × 832 mm reached (see Fig. 3).

Due to the rectangular and symmetrical basic shape of the components and the Use of commercially available semi-finished products is an almost waste-free Zu cut possible. From exactly one square meter, e.g. B. glued wood, can all flä other components are manufactured.

Only the simplest tools are required for cutting and assembly does.

This new folding chair is very versatile. Because of the poss dimensions and proportions and the ergonomically shaped Backrest, excellent seating comfort and is folded down to the smallest Space to stack and store safely and easily. The groove is also possible tongue as a table base or as the basis for other applications such as B. the Attaching a desk pad or storage space. Here is the manufacture and realize disposal economically and ecologically. It is conceivable here Manufactured as exclusive solitary furniture but also as a series model. The big band wide range of usable building materials can be used in the leisure area or in the normal living environment.

An advantageous embodiment and an embodiment of the invention is specified in the protection claim and Figs. 1-4.

The pictures show:

Fig. 1 Perspective view of the folding chair and designation of the components,

Fig. 2 front view and functional representation,

Fig. 3 Isometric representation with dimensions (all dimensions in millimeters),

Fig. 4 Pattern example of the flat components.

Publications considered for assessment:

DE 38 00 597 C2
DE 30 18 912 A1
EP 0 295 191 A1

Adolf G. Schneck, The Chair, Building Books Vol. 4,
Hergb .: Württembergisches Landesgewerbeamt
Julius Hoffmann Verlag, Stuttgart 1928.

Claims (6)

1. Folding chair with fixed seat, armrests and flexible, ergonomically shaped backrest.
Foldable with one hand, transportable, stackable.
Characterized in that the seat (A), which is connected by bands or rods (B) with the bottom (C), is divided at the fold häIftig (in vertical direction) and pushed upward.
The support frame (D) is also divided during this process and moves forward ( Fig. 2).
The movable connection of the components (AF) under and against each other is achieved by using a hinge band, in the case of the elements (D, E and F) by using fixed bands. 2. folding chair according to protection claim 1, characterized in that the armrests (G) are wider than the side parts (E and F) and protrude from the outside.
They offer a comfortable support surface for the arms, fix the chair in folded and stacked condition on two sides and serve as handles. 2.1. Characterized in that the backrest (H) is formed from flexible, solid material (e.g. leather, plastic, fabric) in the vertical and horizontal. It is firmly attached to the side parts (E and F) and can be folded forward between the side parts when folded ( Fig. 3 Fig. 1). 2.2. Characterized, that the straps (B) connect the seat and floor when lifting the Seat allows one-handed folding.   2.3. Characterized, that the chair is made exclusively from commercially available semi-finished products (e.g. wood, leather; Fix tapes, hinges, screws, glue) can be made. 2.4. Characterized in that the rigid components (AG) can be cut from a square meter of flat material with almost no waste ( Fig. 4).