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Seat, in particular aircraft passenger seat

Seat, in particular aircraft passenger seat description/claims

The invention relates to a seat, in particular an aircraft passenger seat, having seat components such as the backrest, seat part, seat frame, seat cushion and upholstery material and with accessory seat parts such as a headrest, armrest and leg rest.

In the interest of improving the comfort offered to the seat occupant, which is of great importance especially for aircraft passenger seats for commercial aviation, because for example on long-distance flights travel times are prolonged, known seats are conventionally equipped with adjustment devices which enable different adjustment positions of the accessory seat parts. The seat occupant is thus able to move the accessory seat parts which constitute seat components which enhance comfort into the desired adjustment positions, which positions afford him the greatest possible comfort according to his requirements.

The adjustment devices of known seats are complicated due to the required positioning mechanism, require large installation space and are expensive to produce.

Therefore the object of the invention is to make available a seat which enables adjustment of the position of accessory seat parts, but which is characterized by a simple design.

As claimed in the invention, this object is achieved by a seat which has the features of claim 1 in its entirety.

In that, as specified in the characterizing part of claim 1, the pertinent seat components have at least one guide web along which an associated accessory seat part can be moved into the desired adjustment positions in which it is locked in position in a friction fit, an especially simple adjustment device is available in which no positioning mechanism at all is necessary. Due to the friction fit present between the accessory seat part and the guide web, the seat occupant is able to move the desired accessory seat part manually against the inhibiting action of the friction fit into the desired adjustment position in which the accessory seat part remains fixed, without the need for further measures or manipulations. It goes without saying that the strength of the active friction fit is selected such that the accessory seat part can be moved on the one hand with moderate expenditure of force, but is relatively securely locked in the desired adjustment position which has been reached for the respective purpose.

In especially advantageous embodiments which are characterized by an especially simple, economically producible design, the guide web is formed by the edge of the upholstery material running in the guide direction.

Especially for the embodiments in which the guide web extends within the outline of a flat area of the upholstery material, in the upholstery material at least one slot which runs in the guide direction can be formed, with one edge forming the guide web.

So that it is a “hidden” slot, the edges of the upholstery material which border the slot can overlap slightly, the edge of the upholstery material lying at the top on the overlap formed in this way forming the guide web.

To form the friction fit between the accessory seat part and the guide web, there is preferably a clamping means which produces a clamping force between the guide web and the movable accessory seat part.

For an especially simple, reliable design of the clamping means, there is a clamping spring which produces the clamping force, with spring legs which clamp the edge of the upholstery forming the guide web between themselves.

When the accessory seat part which can be adjusted in position is for example a headrest and/or lordosis support which can be moved along the backrest, there can be two slots which run parallel to one another in the longitudinal direction of the backrest and which are adjacent to the side edges of the backrest, the upholstery material which runs between the slots on the overlap of the slots forming the upholstery material which lies at the top, with the respective edge forming the guide web for an accessory seat part which is guided to be movable in the longitudinal direction on the two slots, for example a headrest, which after displacement against the lower end of the backrest can optionally also be used as a lordosis support.

The invention will be detailed below using embodiments shown in the drawings.

FIG. 1 shows a highly schematically simplified front view of a row of aircraft passenger seats with two seats according to one embodiment of the invention;

FIG. 2 shows a correspondingly simplified side view of the row of seats from FIG. 1;

FIG. 3 shows an enlarged partial side view of the detail designated as III in FIG. 2;

FIG. 4 shows a partial section drawn likewise on a larger scale compared to FIGS. 1 and 2 according to the cutting plane designated as IV in FIG. 1 and

FIG. 5 shows a representation which corresponds to FIG. 4 and which illustrates a second embodiment.

• Provisional Patent
• Utility Patent

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