Adjustable seat assembly for a tilting vehicle and tilting vehicle with such an adjustable seat assembly

Abstract

An adjustable seat assembly for a tilting vehicle includes a seat pan configured to be secured in a fixed position with respect to a frame of the tilting vehicle, at least one cushion unit arranged on the seat pan and forming a seat surface, and at least one adjustment device by which the seat surface is transferable from a low seat position into at least one raised seat position. In addition or alternatively, the at least one adjusting device may alter an inclination of the seat surface relative to the seat pan. The cushion unit has at least one base cushion secured in a fixed position on the seat pan, and at least one adjustable cushion which is movable relative to the base cushion by the adjustment device.

Claims

1. An adjustable seat assembly for a tilting vehicle, comprising: a seat pan configured to be fixed in a stationary manner with respect to a frame of the tilting vehicle; at least one cushion unit arranged on the seat pan and forming a seat face on a side of the at least one cushion unit which faces away from the seat pan; and at least one adjusting device configured to at least one of transfer the seat face from a low seat position into at least one elevated seat position in which a spacing of the seat face from the seat pan is increased relative to the low seat position, and adjust an inclination of the seat face relative to the seat pan, wherein the adjusting device is located at a transverse center region of the adjustable seat assembly relative to a travel direction when the adjustable seat assembly is installed on the tilting vehicle, the cushion unit has at least one base cushion fixable in a stationary manner on the seat pan and is not movable relative to the seat pan, and at least one adjusting cushion which covers at least a portion of the base cushion, includes the seat face and is movable relative to the base cushion by the adjusting device, when in an installed position on the tilting vehicle, one of the base cushion and the adjusting cushion has at least one recess extending along a vertical axis of the tilting vehicle, and the other of the base cushion and the adjusting cushion has at least one engaging portion configured to engage the at least one recess along the vertical axis of the tilting vehicle, the adjusting cushion includes at least one stop section configured to protrude transverse to the vertical axis beyond the at least one recess, and the base cushion and the adjusting cushion bear against one another at least in the low seat position on a side of the base cushion which faces away from the seat pan with the at least one stop section being at least partially above at least one portion of the base cushion outside of the at least one recess.

2. The seat assembly according to claim 1, wherein the at least one recess includes, at least in sections, a cross section which tapers, and the at least one engaging portion has a cross section which corresponds to the recess cross section in the low seat position.

3. The seat assembly according to claim 1, wherein the adjusting cushion and the base cushion at least in the low seat position form an outer seat contour which is flush and stepless relative to one another.

4. The seat assembly according to claim 3, further comprising: at least one covering configured to surround the base cushion and the adjusting cushion on an outer side of the seat in the low seat position and in the elevated seat position.

5. The seat assembly according to claim 4, wherein the covering is fixed directly on the seat pan, and the covering at least one of includes a reserve surface configured to compensate for a surface difference between the low seat position and the elevated seat, is elastically deformable, and is fixable fixed indirectly on the seat pan by an elastic tensioner.

6. The seat assembly according to claim 4, wherein the covering at least one of prestresses the adjusting cushion into the low seat position, and includes a film or an elastic textile.

7. The seat assembly according to claim 1, wherein the adjusting device includes at least one fluid cushion which is adjustable at least one of pneumatically and hydraulically, and the adjusting device is arranged between the adjusting cushion and the seat pan or between the adjusting cushion and the base cushion.

8. A tilting vehicle with at least one seat assembly, comprising: a seat pan configured to be fixed in a stationary manner with respect to a frame of the tilting vehicle; at least one cushion unit arranged on the seat pan and forming a seat face on a side of the at least one cushion unit which faces away from the seat pan; and at least one adjusting device configured to at least one of transfer the seat face from a low seat position into at least one elevated seat position in which a spacing of the seat face from the seat pan is increased relative to the low seat position, and adjust an inclination of the seat face relative to the seat pan, wherein the adjusting device is located at a transverse center of the adjustable seat assembly relative to a travel direction when the adjustable seat assembly is installed on the tilting vehicle, the cushion unit has at least one base cushion fixable in a stationary manner on the seat pan and is not movable relative to the seat pan, and at least one adjusting cushion which covers at least a portion of the base cushion, includes the seat face and is movable relative to the base cushion by the adjusting device, when in an installed position on the tilting vehicle, one of the base cushion and the adjusting cushion has at least one recess extending along a vertical axis of the tilting vehicle, and the other of the base cushion and the adjusting cushion has at least one engaging portion configured to engage the at least one recess along the vertical axis of the tilting vehicle, the adjusting cushion includes at least one stop section configured to protrude transverse to the vertical axis beyond the at least one recess, and the base cushion and the adjusting cushion bear against one another at least in the low seat position on a side of the base cushion which faces away from the seat pan with the at least one stop section being at least partially above at least one portion of the base cushion outside of the at least one recess.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 shows a diagrammatic sectional view through one exemplary embodiment of the seat assembly of the present invention in a comparison of a low seat position and an elevated seat position, and

(2) FIG. 2 shows a top view of the exemplary embodiment of the seat assembly according to FIG. 1.

DETAILED DESCRIPTION OF THE DRAWINGS

(3) FIG. 1 shows an adjustable seat assembly which is provided overall with the designation 2 for a tilting vehicle 4 (shown diagrammatically in FIG. 2). The seat assembly 2 comprises a seat pan 6 which is fixed in a stationary manner with regard to a frame 8 of the tilting vehicle 4. Furthermore, the seat assembly 2 comprises a cushion unit 10 which forms a seat face 12 on a side which faces away from the seat pan 6. In order to adjust the seat face 12, the seat assembly 2 comprises an adjusting device 14, by way of which the seat face 12 can be transferred from a low seat position (left-hand side in FIG. 1), in which the spacing of the seat face 12 from the seat pan 6 is at a minimum, into at least one elevated seat position (right-hand side in FIG. 1), in which the spacing of the seat face 12 from the seat pan 6 is increased with regard to the low seat position, and/or by way of which adjusting device 14 an inclination of the seat face 12 with respect to the seat pan 6 can be set.

(4) In the case of the exemplary embodiment which is shown in the figures, the cushion unit 10 comprises at least one base cushion 16 which is fixed in a stationary manner on the seat pan 6, and at least one adjusting cushion 18 which comprises the seat face 12 and can be moved relative to the base cushion 16 by way of the adjusting device 14.

(5) In the case of the exemplary embodiment which is shown in the figures, the cushion unit 10 comprises a recess 20 which extends along the vertical axis of the tilting vehicle 4. This recess 20 is arranged in the base cushion 16 in the case of the exemplary embodiment which is shown in the figures. The adjusting cushion 18 comprises a gap section 22 which is configured in a corresponding manner with respect to the recess 20. The recess 20 and gap section 22 comprise a conical, tapering cross section. As a result, a self-centering action of the seat assembly 2 is produced by way of the recess 20 and gap section 22. Moreover, the adjusting cushion 18 comprises a stop section 24 which protrudes beyond the recess 20 transversely with respect to the vertical axis of the tilting vehicle 4, and on which the base cushion 16 and the adjusting cushion 18 bear against one another, in a cover-like manner, on a side of the base cushion 16 which faces away from the seat pan 6, at least in the low seat position.

(6) The base cushion 16 and the adjusting cushion 18 comprise an outer contour which continues in a flush and stepless manner with respect to one another, at least in the low seat position.

(7) Moreover, the seat assembly 2 comprises a covering means 26 which surrounds the base cushion 16 and the adjusting cushion 18 at least approximately completely and is fixed on the seat pan 6. In the case of the exemplary embodiment which is shown in the figures, the covering means 26 is of elastically deformable configuration. As a result, the covering means 26 tensions the adjusting cushion 18 in the direction of the base cushion 16, and forms a return means.

(8) In order to transfer the adjusting cushion 18 relative to the base cushion 16, the adjusting device 14 in the case of the exemplary embodiment which is shown in the figures comprises a pneumatically and/or hydraulically adjustable fluid cushion 28.

(9) It can be seen from looking at the left-hand side of FIG. 1 that the volume of the fluid cushion 28 is at a minimum. In such cases, the adjusting cushion 18 is arranged with the seat face 12 which is arranged on the adjusting cushion 18 in a low seat position.

(10) On the right-hand side of FIG. 1, the fluid cushion 28 is configured with an expanded volume. Here, the adjusting cushion 18 is moved relative to the base cushion 16, and a spacing between the seat face 12 and the seat pan 6 is extended.

(11) The features of the invention which are disclosed in the preceding description, in the claims and in the drawing can be essential both individually and also in any desired combination to the implementation of the invention in its various embodiments.

LIST OF DESIGNATIONS

(12) 2 Seat assembly 4 Tilting vehicle 6 Seat pan 8 Frame 10 Cushion unit 12 Seat face 14 Adjusting device 16 Base cushion 18 Adjusting cushion 20 Recess 22 Gap section 24 Stop section 26 Covering means 28 Fluid cushion