DE2147598A1 - Plastic chair - Google Patents

Description

Patent attorney 2H7598

Kar! A. B r o s e

Pip! - Ing.
Q-Γ ,: ";. '·. ·.-Η' .: cn - Puilach

v;:. \ ~: ...:. f ·: ■■> - · '■ ι .30 ^ 70.7931732

DB / Mti 8023 Pullach, September 23, 1971

TAIICHI 0110, 88,4-chome, Biwa, 1 imadori, Nishiku, Nagoya , Japan

Plastic chair

The invention relates to a chair made wholly or partly of plastic material. In particular, the invention relates the construction of a chair made from injection-molded plastic parts and its special features and improved property is that it has an adjustable resilient or pillow-like property and one withstands noticeable deflection enough that a person sitting on it has the impression of a rocking or rocking movement Common plastic-made chairs are in some However, improved cases from the viewpoint of productivity or in some cases from the viewpoint of external appearance such a chair is not known to provide an improvement in the comfort or the sitting feeling of a user having.

The invention is based on the object of creating a chair, by means of which it is possible to give a person sitting on it a comfortable feeling by using the previously described Properties are used and which is very simple in construction and manufacture.

The object on which the invention is based is essentially achieved solved by the fact that air enclosed in a closed space flows out through an opening in a limited area

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is left and the feeling of a rocking and rocking motion is conveyed by the fact that a certain degree of deflection is given the part on which the weight of the person seated is applied when the person is seated.

The invention is explained in more detail below with reference to an embodiment illustrated by way of example in the drawings.

It shows:

Pig, 1 a sketchy view partly i: a section a chair according to the invention;

Pig. Figure 2 is a plan view of Figure 1;

Fig. 3 is a vertical section on an enlarged scale through a connecting area (part c in Figure 1);

Fig. 4 is a sketchy view of the chair shown in Figure 1, in which a partially deflected State under the action of an eccentric load is illustrated; and

5 shows a view corresponding to FIG. 1 of a further embodiment of the invention.

In Figure 1, an upper component 1 is from an inverted bell shape and a lower component 2 illustrated in a bell shape, which together give a shape which is similar to a hyperboloid is. The connecting part of the upper component 1 with the lower component 2 has, as illustrated in Figure 3, a bolt Ί, a wing screw 5 and a washer 6.

The foot part la of the upper component 1 and the ceiling or the head part 2a of the lower component 2 are fixed on the circumference in a Manner of a zigzag engagement, i.e. a protruding part 2c of the lower member 2 engages a recessed part Ic of the upper component 1 with a

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to avoid certain pitch on the periphery in to the risk of mutual rotation between the two components in spite of only a mounting means, namely a bolt ¹ I.

A number of ribs Ib and 2b are around the inner circumference of the upper component 1 or the lower component 2 is provided and arranged.

The upper part 1 expands upwards, what as a part Id is illustrated, and ultimately merges into a vertical planch part Ie and the lower component 2 expands down and ultimately merges into a vertical paddling part 2e on the ground.

With this paddling part Ie is a cap or slidable a lid 3 engaged, which has an upwardly convex bulge portion 3a and air of a certain volume V in cooperation with the upper component 1 includes.

A hole or a small number of holes lh provided on the upper member 1 and thus when it is applied, a force P or the weight of a person sitting thereon, the Wibungsteil 3a initially in the state 3a ', as in Figure ^1. I illustrates, deform and then compress the air of volume V in order to slowly push the air out through a small hole lh into the outside air, since there is a flow resistance of the flowing air. This resistance ensures a damping effect or a kind of cushion effect.

On the other hand, it is possible that the force F can be an eccentric load with regard to its point of application and / or its direction, so that the part on which the force acts causes an inclination to a certain angle oC. This deflection <λ of degrees, for example, and the return from this deflection due to the structural rigidity of the deflected part

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les give the person sitting on the chair the feeling of being Swing · * Weighing or rocking and cradling nature, especially if the seated person moves his / her upper body, i.e. when the force P changes its point of attack or direction of attack. (If the seated person sits quietly, the force F should be in the upright direction, but if the person seated on it is with If your foot transfers some force to the ground, the compound force F will act in an inclined direction).

Furthermore, a user of such a chair can use his body sit down with a thump when sitting in a chair and move the upper half of his body while sitting. Consequently, by a chair according to the invention at Seated a user thereon such excellent effects as a cushion effect due to the small one Hole in the flowing air and a rocking or rocking effect through a certain degree of structural rigidity, which is a noticeable Allows deflection of a part on which the weight of the user or the force is applied, or the return from this deflection, ensure.

It is also a pleasant effect that dfe deflection and the deformation according to the invention go gradually and be canceled by itself in order to return to the previously prevailing state to return when the load is removed or when the user leaves the chair, i.e. in other words, the improved Feel or the improved properties are steadily restored and naturally maintained.

With reference to FIG. 5, a further embodiment of the invention is briefly described below in which the upper part and the lower part of the previous embodiment are combined in a hyperboloid-like body I ^1. This body I ¹ has a bulkhead or partition I ¹ B in one piece which cover the fastening device illustrated in FIG.

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makes it liquid.

The chair according to the invention consists of the body 1 'and a cover 3 ^f and the former has a number of ribs l'b on the upper circumference and 2 ^f b on the lower circumference.

A cover 3 'is pushed ^{onto the upper flanged part 1'e of the body I 1} in engagement and likewise has a vault-like convex head part 3'a.

In cooperation with the lid ^3f , the upper part of the body 1 'can enclose air of a certain volume V ¹ , which is caused to flow out through a small hole 1'h when a user takes a seat on the chair.

It will be apparent that a chair is as illustrated in FIG Construction has the same pleasant effects as mentioned in connection with the first embodiment.

In a further embodiment according to the invention, the cover can be designed to be slidable on the upper surface, whereby the cushion-like effect is further supported by the uppermost area of the flange being deflected inward when a user sits down and pressed all around into the curved part of the cover. In this embodiment, the transition between the curved part 3a or 3a ¹ and the flat 3b is rounded on the inside on the cover. As a result of the elasticity, the cover slides back into its original position after the load has been removed.

All of the technical details that can be seen in the description and shown in the drawings are essential for the invention of Meaning.

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Claims (1)

2U7598 Claims (l? \ Seating furniture, primarily in the style of a stool or bar stool and wholly or partially made of elastic plastic, characterized in that its seat is under the load of the user is designed or arranged to be flexible and .neigbar. 2. Seating furniture according to claim 1, characterized in that the Seat is arranged on a mushroom-like head with a central columnar support. 3. Seating furniture according to claim 1 or 2, characterized in that the mushroom head (1) is designed as an air cushion. ¹ I. Seating furniture according to claim 1, 2 or 3j, characterized in that 1M 1 * h) that the air space of the mushroom head (I ₃ / has a breathing opening (lh, /. 5. Seating furniture according to one or more of the preceding claims, characterized in that the mushroom head 1 with the interior of the column or with the interior of the upper part of the column forms a hollow body. 6. Seating furniture according to one or more of the preceding claims, characterized in that the column enables the seat (1) to be deflected when the seat is loaded. 7. Seating furniture according to one or more of the preceding claims, characterized in that the side walls of the column -gene
have a hyperboloidarti / course. 209833/0591 2H7598 8. Seating furniture according to one or more of the preceding claims, characterized in that the side walls of the column at the upper and lower end each have a flange-like approach (Ie, 2e) end. 9. Seating furniture according to one or more of the preceding claims, characterized in that the mushroom head / is closed on its upper side by an elastically deformable cover (3 »3 ^f ). 10. Seating furniture according to one or more of the preceding claims, characterized in that the cover (3 » 3 ') is pushed onto the flange-like extension (Ie, / of the column. 11. Seating furniture according to one or more of the preceding claims, characterized in that it consists of two similar interconnected parts. 12. Seating furniture according to one or more of the preceding claims, characterized in that the abutting surfaces of the two seating furniture parts intermesh like teeth. 13. Seating furniture according to one or more of the preceding claims, characterized by the arrangement of stiffening ribs (lb, 2b, l'b, 2'b) on the inner circumference of the upper part (1) and of the lower part (2). 209833/0591