Seat, in Particular Aircraft Passenger Seat
The invention relates to a seat, in particular an aircraft passenger seat (1), comprising seat components such as a backrest (9), seat section (5), seat frame, seat cushion and cover material and seat attachment parts such as a headrest (15), armrest and footrest. At least one of the seat components is equipped with at least one guide web (17), along which a seat attachment part (15) can be displaced and fixed in a friction fit in a predetermined position.
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.
The upholstery material 13 can be a textile, leather, artificial leather or the like.
In the embodiment to be described here, the movable accessory seat part is a headrest 15 which, as shown in
The actual guide web for displacement of the headrest 15 is formed by the respective edge 21 on the two sides of that part of the upholstery material 13 which extends over the central region of the backrest from guide web 17 to guide web 17: As is likewise apparent from
As is to be seen from
It goes without saying that instead of the illustrated example of a headrest/lordosis support 15 with an adjustable position, accessory seat parts of another type can be movably located on the guide webs of the pertinent seat components and can be fixed in a friction fit.
Claims
1. A seat (1), in particular an aircraft passenger seat, having seat components such as the backrest (9), seat part (5), seat frame, seat cushion (11) and upholstery material (13) and with accessory seat parts such as a headrest (15), armrest and leg rest, characterized in that in at least one of the seat components there is at least one guide web (17) along which one accessory seat part can be moved and fixed in predetermined positions in a friction fit.
2. The seat as claimed in claim 1, wherein the guide web (17) is formed by the edge (21) of the upholstery material (13) which runs in the guide direction.
3. The seat as claimed in claim 2, wherein in the upholstery material (13) at least one slot which runs in the guide direction is formed, with one edge (21) forming the guide web (17).
4. The seat as claimed in claim 3, wherein the edges (19, 21) of the upholstery material (13) which border the slot overlap slightly and wherein the edge (21) of the upholstery material (13) lying at the top on the overlap which has been formed in this way forms the guide web (17).
5. The seat as claimed in claim 1, wherein there is a clamping means (23) which produces a clamping force between the guide web (17) and the movable accessory seat part (15) for forming the friction fit.
6. The seat as claimed in claim 5, wherein there is a clamping spring (23) which produces the clamping force with spring legs (25, 27) which clamp the edge (21) of the upholstery (13) which forms the guide web (17) between themselves.
7. The seat as claimed in claim 6, wherein a clamping spring (23) with a flat spring leg (25) which is connected to the accessory seat part (15) and which transmits the clamping force to the top of the edge (21) of the upholstery material (13) overlapped by the clamping spring (23), with a turning part (29) which encompasses the edge (21) of the upholstery material (13) and an arched second spring leg (27), with its convexity transmitting the clamping force to the back of the edge (21) of the overlapped upholstery material (13).
8. The seat as claimed in claim 7, wherein the arched second spring leg (27) on the overlap formed on the slot can be displaced along the top of the overlapped upholstery material (13).
9. The seat as claimed in claim 7, wherein along the edge (21) of the upholstery material (13) overlapped by the clamping spring (23), there is piping on it which is surrounded at least partially by the turning part (29) of the clamping spring (23), which part is located between the spring legs (25, 27).
10. The seat as claimed in claim 4, wherein there are two slots, which are adjacent to the side edges of the backrest (9) and which run parallel to one another in the longitudinal direction of the backrest (9) and wherein the upholstery material (13) which runs between the slots on the overlap of the slots forms the upholstery material (13) which lies at the top, with the respective edge (21) forming the guide web (17) for an accessory seat part (15) which is guided to be movable in the longitudinal direction on the two slots.
11. The seat as claimed in claim 10, wherein the accessory seat part is a movable headrest (15).
Type: Application
Filed: Apr 29, 2005
Publication Date: May 22, 2008
Inventors: Hartmut Schurg (Schwabisch Hall.), Oliver Forgatsch (Meersburg)
Application Number: 11/662,635
International Classification: A47C 7/38 (20060101); A47C 7/02 (20060101);