Vehicle seat, in particular an airplane passenger seat

Claim 2

A vehicle seat, in particular an airplane passenger seat, comprising: a front crosspiece, first and second seat dividers, a rear crosspiece arranged parallel to the front crosspiece, and at least two feet each having a lower end and an upper end, both crosspieces being solidly connected with the upper end of said feet, said first seat dividers supported by the crosspieces, said crosspieces being profiled tubes with longitudinal slots for solidly connecting said first seat dividers and said feet, said longitudinal slots each having a depth, said front crosspiece being provided with an additional longitudinal slot which is open toward the rear crosspiece and includes parallel flanks for slidingly receiving therein in the direction of the slot depth a front end-section of said second seat dividers slidable in the longitudinal direction of said crosspieces.

Claim 3

The vehicle seat according to claim 1, wherein both crosspieces have a double-wall and one of the longitudinal slots of the rear crosspiece is open toward the top of said rear crosspiece.

Claim 4

The vehicle seat according to claim 2, wherein each seat divider is connected with a sliding body that is arranged in the longitudinal slot open toward the top of said rear crosspiece.

Claim 5

The vehicle seat according to claim 3, wherein the sliding body is securely positioned in and crosswise to the longitudinal slot open toward the top of said rear crosspiece.

Claim 6

The vehicle seat according to claim 4, wherein the front and rear crosspieces are profiled tubes with an outer wall and an inner wall and the longitudinal slots of the front and rear crosspieces have a hammerhead-like cross-section for connection with the feet, whereby a part of each wall delimiting one of said slots is formed by the inside wall of the profiled tube and a part is formed by the cross-bridges between the inside wall and the outer wall.

Claim 7

The vehicle seat according to claim 5, wherein the crosspieces have bearing surfaces which are coated at least in part with a plastic having good sliding properties.

Claim 8

A vehicle seat, in particular an airplane passenger seat, comprising: a front crosspiece, a rear crosspiece arranged parallel to the front crosspiece, and at least two feet each having a lower end and an upper end, first and second seat dividers, both crosspieces being solidly connected with the upper end of said feet, said first seat dividers supported by the crosspieces, said crosspieces being profiled tubes with longitudinal slots for connecting said first seat dividers and said feet, said from crosspiece being provided with a longitudinal slot which is open toward the rear crosspiece and includes parallel flanks for slidingly receiving therein a front end-section of said second seat dividers, wherein both crosspieces have a double-wall and one of the longitudinal slots of the rear crosspiece is open toward the top of said rear crosspiece, and wherein said one of said longitudinal slots is delimited by inside wall of said rear crosspiece, which wall extends more than 180 degrees concentrically to the longitudinal axis of said rear crosspiece.

Claim 9

A vehicle seat, in particular an airplane passenger seat, comprising: a front crosspiece, a rear crosspiece arranged parallel to the front crosspiece, and at least two feet each having a lower end and an upper end, first and second seat dividers, both crosspieces being solidly connected with the upper end of said feet, said first seat dividers supported by the crosspieces, said crosspieces being profiled tubes with longitudinal slots for connecting said first seat dividers and said feet, said from crosspiece being provided with a longitudinal slot which is open toward the rear crosspiece and includes parallel flanks for slidingly receiving therein a front end-section of said second seat dividers, wherein both crosspieces have a double-wall and one of the longitudinal slots of the rear crosspiece is open toward the top of said rear crosspiece, and wherein said one of said longitudinal slots is delimited by inside wall of said rear crosspiece, which wall extends more than 180 degrees concentrically to the longitudinal axis of said rear crosspiece.

Claim 10

The vehicle seat according to claim 7, wherein the rear crosspiece has a flattened top surface facing the seat dividers, and said one of said longitudinal slots is delimited by two flank areas whose distance from each other is less than an inside diameter of an inside tube defined by the inside wall.

Claim 11

The vehicle seat according to claim 8, wherein said one of said longitudinal slots in said rear crosspiece is positioned in the middle of said flattened top surface.

Claim 12

The vehicle seat according to claim 8, wherein the from and rear crosspieces are profiled tubes with an outer wall and an inner wall and the longitudinal slots of the front and rear crosspieces have a hammerhead-like cross-section for connection with the feet, whereby a part of each wall delimiting one of said slots is formed by the inside wall of the profiled tube and a part is formed by cross-bridges between the inside wall and the outer wall.

Claim 13

The vehicle seat according to claim 10, wherein the crosspieces have bearing surfaces which are coated at least in part with a plastic having good sliding properties.

Claim 14

A vehicle seat, in particular an airplane passenger seat, comprising: a front crosspiece, a rear crosspiece arranged parallel to the from crosspiece, and at least two feet each having a lower end and an upper end, first and second seat dividers, both crosspieces being solidly connected with the upper end of said feet, said first seat dividers supported by the crosspieces, said crosspieces are profiled tubes with longitudinal slots for connecting said first seat dividers and said feet, said front crosspiece is provided with a longitudinal slot which is open toward the rear crosspiece and includes parallel flanks for slidingly receiving therein a front end-section of said second seat dividers, wherein both crosspieces have a double-wall and one of the longitudinal slots of the rear crosspiece is open toward the top of said rear crosspiece, and wherein other of the longitudinal slots of the front and rear crosspieces have a hammerhead-like cross-section for connection with the feet, and wherein the walls delimiting each of these slots are formed partly by an inside wall of said crosspiece and partly by crossbridges between said inside wall and an outer wall of said crosspiece.

Claim 15

A vehicle seat, in particular an airplane passenger seat, comprising: a front crosspiece, a rear crosspiece arranged parallel to the from crosspiece, and at least two feet each having a lower end and an upper end, first and second seat dividers, both crosspieces being solidly connected with the upper end of said feet, said first seat dividers supported by the crosspieces, said crosspieces are profiled tubes with longitudinal slots for connecting said first seat dividers and said feet, said front crosspiece is provided with a longitudinal slot which is open toward the rear crosspiece and includes parallel flanks for slidingly receiving therein a front end-section of said second seat dividers, wherein both crosspieces have a double-wall and one of the longitudinal slots of the rear crosspiece is open toward the top of said rear crosspiece, and wherein other of the longitudinal slots of the front and rear crosspieces have a hammerhead-like cross-section for connection with the feet, and wherein the walls delimiting each of these slots are formed partly by an inside wall of said crosspiece and partly by crossbridges between said inside wall and an outer wall of said crosspiece.

Claim 16

The vehicle seat according to claim 12, wherein said inside wall of said front crosspiece and said inside wall of said rear crosspiece each delimits a channel receiving an extension piece in a telescopically sliding manner.

Claim 17

The vehicle seat according to claim 13, wherein the crosspieces have surface areas serving as bearing surfaces, said bearing surfaces coated at least in part with a plastic having good sliding properties and bear a front section and sliding bodies of movable seat dividers and extension pieces.

Claim 18

The vehicle seat according to claim 14, wherein the rear crosspiece is provided as a support for a locking device for the seat dividers slidable in the longitudinal direction of said rear crosspiece.