DE102012018351A1 - Seat e.g. driver seat of vehicle e.g. commercial vehicle, has rotating unit, height adjustment, backrest adjustment and horizontal adjustment which are changed from main position to stowed position with in cab - Google Patents

Abstract

The seat (4) has a horizontal adjustment which sets seat main portion at a location within a cab (1). A height adjustment mechanism defines the height of the seat portion. A rotating unit defines the orientation of seat main portion within driver cab, such that backrest is completely folded onto the seat portion. The backrest adjustment mechanism determines the angle between the seat portion and backrest. The rotating unit, height adjustment, backrest adjustment and horizontal adjustment are changed from a main position to stowed position with in the cab. An independent claim is included for method for removing vehicle seat.

Description

The invention relates to a vehicle seat, in particular a utility vehicle seat, with a horizontal, a height and a backrest adjustment including integrated three-point belt and a method for moving such a vehicle seat from a main use position to a Hauptverstaustellung.

Commercial vehicle cabs regularly have a driver's seat, a passenger's seat and at least a lower bed, in particular for heavy commercial vehicles. Driver and passenger seats are arranged side by side in the cabin in the direction of travel. The bed regularly has a folding function. In the folded-up position, the lying surface of the bed rests against the rear wall of the cabin.

Frequently commercial vehicles are occupied in daily operation as well as in multi-day trips with only one driver, so that in these cases the passenger seat is not occupied while driving. The driver needs, however, in the cab, especially if he stays there in the case of longer trips, a reasonable amount of space. In order to make the best possible use of the given cabin interior, it is desirable to be able to store the passenger seat in a space-saving manner when not in use.

The DE 102 37 782 A1 shows a cab for a single driver. In order to provide a driver with limited space, a comfortable quiet zone with retirement home and lying surface, there is provided that the cab has a retirement home, which is convertible to the bed as a cab bed.

The disadvantage here is that bed and seat are not available at the same time.

The object of the invention is therefore to provide a full vehicle seat - driver or passenger seat - for use in a cab for a commercial vehicle available, which are used as needed as a comfortable and safe seat or resting place and stowed compactly and compactly when not in use can, with a cab bed as such, if necessary, regardless of the passenger seat is available.

This object is achieved by a vehicle seat having the features of patent claim 1. Due to the configuration of the vehicle seat with a horizontal adjustment, a height adjustment, a rotating device, a backrest adjustment and a backrest folding towards the seat part with the properties described below, the vehicle seat can be used as a seat or as a resting place as needed. Since the horizontal adjustment is a mechanism for fixing the vehicle seat to a location within a cab in which the vehicle seat is mounted, the position of the vehicle seat can be varied between various positions including a main use position and a main position. Since the height adjustment is a mechanism for determining the height of the seat portion over a floor of the cab, not only an optimal adjustment of the seat height can be achieved in a position of use, but also the best possible adjustment of the height of the vehicle seat in a stowed position, in particular to the height of the cab bed. By the rotating device having a mechanism for determining the orientation of the vehicle seat inside the cab with an extreme position, in conjunction with a backrest adjustment, the mechanism for fixing the angle between the seat part and the backrest with an extreme position in which the backrest completely on the seat part is folded, the driver's seat can be arranged below the cab bed in the folded down state. Both in the main use position and in the Hauptverstaustellung the vehicle seat can be completely locked by suitable devices.

An advantageous development of the invention provides that the vehicle seat is rotated in its main use position to the direction of travel, while the height adjustment is in its upper constructively predetermined position, the backrest is aligned substantially perpendicular to the seat part and the horizontal adjustment in the front constructive predetermined position. This allows an occupant in this position - as in known cabs - sit next to the other vehicle seat and use all the possibilities of the vehicle seat.

A further advantageous embodiment of the invention provides that the vehicle seat is rotated in an alternative position of use transversely to the direction of travel and the cab, while the height adjustment is in its upper constructively predetermined position, the backrest is aligned substantially perpendicular to the seat part and the horizontal adjustment is in the rear constructively predetermined position. The vehicle seat can thereby serve the occupant during rest breaks as a comfortable seating opportunity; a better communication with another occupant on the other vehicle seat is also possible.

A further advantageous embodiment of the invention provides that it is located in its Hauptverstaustellung completely below a cab bed of a truck, where it is transverse to the direction of travel and to the cab is rotated, the backrest is completely folded in the direction of the seat part, the height adjustment is in its lower constructively predetermined position, the horizontal adjustment is in its rear constructively predetermined position. As a result, despite the scarce space in the vehicle cabin space is created because the vehicle seat claimed no additional space to the cab bed.

A further advantageous embodiment of the invention provides that in the Hauptverstaustellung the backrest rests completely on the seat part. In particular, by the further development that the back of the backrest is designed so that it serves as a support surface for the cab bed, thereby supporting the cab bed is guaranteed and further supports for the cab bed can either be omitted entirely or constructed less expensive.

A further advantageous embodiment of the invention provides that it is rotated longitudinally or transversely to the direction of travel in an alternative stowage position, the height adjustment is in its lower or upper constructively predetermined position and the horizontal adjustment is in its rear or front constructively predetermined position wherein the backrest is positioned substantially vertically and the seat part is fully folded upwards. The resulting narrow silhouette takes away less space than when the seat is folded down.

A further advantageous development of the invention provides that the horizontal adjustment has a single-track linear guide as a guide device. As a result, a particularly simple structural design for the horizontal adjustment is realized.

A further advantageous development of the invention provides that the height adjustment has a column guide which can be blocked in any height positions within its structurally predetermined height adjustment range. As a result, a particularly simple structural design for the height adjustment is realized.

A further advantageous development of the invention provides that the height adjustment has an integrated spring force support, which at least partially compensates the weight of a person or an object that is located on the vehicle seat. Thus, two functionalities of the vehicle seat can be connected to each other in one component: in addition to the rotation of the vehicle seat comfortable use while driving - especially in road damage or off-road - guaranteed.

A further advantageous embodiment of the invention provides that the spring force support the height adjustment a suitable, spring-locking gas spring is used. As a result, a particularly simple structural design for the height adjustment is realized, which has all the necessary functions.

A further advantageous embodiment of the invention provides that the rotating device has a locking device with at least four locking positions, wherein the vehicle seat in its upper and / or in its lower height position by means of the locking device rotationally fixed relative to its seat base can be locked. This allows the occupant to position the vehicle seat not only in the direction of travel or to the center of the cab - as already described above - but also aligned against the direction of travel or the vehicle door. He thus receives alternatives that can offer benefits depending on the desired activity.

The object is also achieved by a method having the features of patent claim 12. This results from the above statements on the vehicle seat according to the invention and its advantageous developments.

An advantageous development of the method according to the invention provides that the vehicle seat is first moved by means of the height adjustment from the upper height position to a lower height position; is then rotated by means of the rotating device from the main working position pointing in the direction of travel in a transversely directed to the direction of travel and to the center of the cab towards position; then the backrest of the vehicle seat is completely folded in the direction of the seat part and locked there; then the vehicle seat is brought by means of the height adjustment in its lower constructively predetermined height position, where it automatically engages in a rotation angle lock; then the backrest of the vehicle seat is completely folded in the direction of the seat part and locked there; and finally the vehicle seat is moved by means of the horizontal adjustment from the front horizontal position along a linear guide in a rear horizontal position in which it is automatically locked. This sequence is particularly advantageous in the shipment due to the limited space in a cab and the structural specifications of the vehicle seat. In the position reached then the cab bed can be folded down over the folded vehicle seat, so that the driver's seat takes up no additional space.

Further advantages and details of the invention will be explained with reference to the embodiment shown in the drawings. Hereby show:

1 : a perspective, schematic representation of a utility vehicle cabin with inventive vehicle seat in main use position,

2 : a representation like in 1 only with cab bed in different orientation,

3 : an enlarged view of the vehicle seat in the in 1 and 2 position shown,

4 : a representation like in 2 with vehicle seat in main exhibition,

5 : an enlarged view of the vehicle seat in the in 4 position shown,

6 : a representation like in 1 only with vehicle seat in main assembly,

7 : an enlarged view of the vehicle seat in the in 6 position shown,

8th : a representation like in 2 with vehicle seat in an alternative stowage and

9 : an enlarged view of the vehicle seat in the in 8th position shown.

1 shows a passenger seat according to the invention 4 (wherein each other seat as well as inventive vehicle seat comes into consideration) within a schematically illustrated commercial vehicle cabin - for a driver's seat applies accordingly, without being discussed in the following. The driver's seat is not shown for reasons of clarity, only the seat base 3 the driver's seat is visible. One in the cab 1 arranged cab bed 2 is folded down, ie in its position of use, shown. The passenger seat 4 is shown in its main position of use. It is turned in the direction of travel, in the front horizontal position and in the upper height position. His seat part 9 is folded down, his backrest 8th is essentially vertical. All of the respective adjusting devices associated locking devices are in the locked state, so that the passenger seat 4 can serve as a comfortable seat in the position shown both while driving and during rest breaks.

2 shows the passenger seat according to the invention 4 also in its main position of use. In contrast to 1 is the cab bed 2 in his folded stowage position.

3 shows a preferred embodiment of the passenger seat according to the invention 4 in the position according to 2 in an enlarged, more detailed view. All components essential to the invention are visible: the passenger seat 4 has a belt boom 6 ie it is equipped with an integrated three-point belt. Furthermore, it has an integrated headrest 7 , Gurtausleger 6 as well as headrest 7 can be rigid or adjustable.

The backrest 8th is opposite the seat part 9 aligning. The angle setting can be infinitely or in discrete steps. The angle adjustment is via a suitable locking device by means of a backrest operating element 12 lockable. Suitable locking devices are well known to those skilled in the art. The backrest 8th is also in the direction of the seat part 9 foldable.

The seat part 9 serves in the illustrated position of use as a seat for the occupant. It is towards the backrest 8th folded.

A column guide 10 includes a spring-assisted height adjustment by means of a height adjustment control element 13 can be adjusted. A gas spring (not shown, but well known in the art) compensates for at least a portion of the weight of an occupant. The gas spring is designed blockable. The blocking can take place within the design limits in any height position.

By means of the column guide 10 is also a rotation of the passenger seat 4 realized around its vertical axis. The column guide 10 thus also provides a turning device at the same time 15 About an associated locking device, the design of which is understandable to those skilled in the art without further illustration, a locking of the rotation is realized in the upper and / or lower height position. In intermediate positions between the upper and the lower height position is the passenger seat 4 opposite the seat base 3 freely rotatable. The locking takes place automatically when shutting down or driving up the passenger seat 4 from intermediate positions to the lower or upper stop position, either exactly in the direction of travel (0 °) or in 90 °, 180 °, 270 ° relative thereto. Is the height position of the passenger seat 4 from the lower or upper stop position changed back to an intermediate position, the Drehwinkelarretierung the rotator 15 deactivated again.

Furthermore, a horizontal guide is shown. Preferably, this guide consists of a single linear guide 5 that with the seat base 3 together a horizontal adjustment 11 form. Multi-lane linear guide variants can also be used. The linear guide 5 includes locking devices that automatically when reaching the front and rear end position, z. B. via a spring-loaded bolt with associated bore in conjunction with a run-in, come into engagement. The locking devices are released by means of a foot pedal 14 ,

For lateral support and guidance are at the bottom of the seat base 3 appropriate means (not shown) are mounted, which are in contact with and supported on the cabin floor. This can z. B. sliders of a lubricious material (metal, PTFE or the like). In a preferred embodiment, rotatably mounted, roller-shaped or barrel-shaped rolling elements are used for this purpose. In a preferred embodiment, the seat base is in all four corners 3 arranged one of the guide means. Other arrangement variants, eg. However, with an odd number of guide means, but are equally applicable.

4 shows the passenger seat according to the invention 4 in its alternative position of use and 5 is an enlarged view of the passenger seat 4 of the 4 , In this position, the passenger seat 4 Passenger (or, of course, the driver) during rest, ie when the vehicle is stationary, serve as a comfortable seating. From this sitting position, the occupant z. B. conveniently in a mounted on the opposite cabin interior wall flat-panel television (not shown) look. Thus the passenger seat 4 can be brought into this position, is the cab bed 2 in his folded stowage. In its alternative position of use is the passenger seat 4 transverse to the direction of travel - ie the backrest 8th is opposite the seat base 3 rotated 90 ° to the center of the cabin - in rear horizontal position, also the height adjustment in the upper stop position - the height adjustment could also be in their lower, in the 4 and 5 not shown height position are. The seat part 9 is folded down, the backrest 8th is essentially vertical. All the locking devices associated with the respective adjusting devices are in the locked state.

6 shows the passenger seat according to the invention 4 in his main constellation. This figure is below together with 7 described, the passenger seat according to the invention 4 increases in the position of his main constellation 6 shows. In this position is the passenger seat 4 completely below the cab bed located in the position of use 2 arranged. In the illustrated Hauptverstaustellung is the passenger seat 4 transversely to the direction of travel, ie rotated to the center of the cabin, in the rear horizontal position and lower height position. The seat part 9 is folded down, the backrest 8th is completely towards the seat part 9 worked and lies on this on. The back of the backrest 8th is preferably formed so that it a support for the bottom (in the folded-down state) of the cab bed 2 forms; For example, this is flat or has three points of support, over the rest of the back of the backrest 8th protrude. All of the respective adjusting devices associated locking devices are in the locked state, so that the passenger seat 4 can remain in this position while the vehicle is being driven on the road.

8th shows the passenger seat according to the invention 4 in an alternative staging. It will be described below together with 9 described, the passenger seat according to the invention 4 increases in the alternative stowage position 8th shows. The illustrated alternative stowage is characterized by the folded up, on the backrest 8th fitting seat part 9 out. In this position, the passenger seat forms 4 a particularly slim silhouette and thus claimed within the cab 1 only a small space. The passenger seat 4 can be moved in this position in almost any position within the design limits. As a height position, the lower, the upper or any intermediate positions can be set. Similarly, the angular position relative to the seat base 3 and the horizontal position - that is, the position of the seat base 3 along the linear guide, by means of the horizontal adjustment 11 is determined - freely chosen. Should the passenger seat 4 to take an alternative stowage when the vehicle is moving, as to the height position, the horizontal position and the angular position to choose those in which the front passenger seat 4 each locked securely.

LIST OF REFERENCE NUMBERS

1

driver's cab

2

Cab bed

3

seat base

4

passenger seat

5

linear guide

6

Gurtausleger

7

headrest

8th

backrest

9

seat part

10

column guide

11

Horizontal adjustment

12

Backrests control element

13

Height adjustment Operating element

14

pedal

15

rotator

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10237782 A1 [0004]

Claims (13)

Vehicle seat, in particular commercial vehicle seat, with horizontal adjustment ( 11 ), Height adjustment, rotating device ( 15 ), integrated three-point belt, backrest adjustment and towards the seat part ( 9 ) folding backrest ( 8th ), whereby the horizontal adjustment ( 11 ) a mechanism for fixing the vehicle seat in a location inside a cab ( 1 ), in which the vehicle seat is attachable, wherein the height adjustment, a mechanism for determining the height of the seat part ( 9 ) above a floor of the cab ( 1 ), wherein the rotating device ( 15 ) a mechanism for determining the orientation of the vehicle seat inside the cab ( 1 ), which has an extreme position in which the backrest ( 8th ) completely on the seat part ( 9 ), wherein the backrest adjustment, a mechanism for fixing the angle between the seat part ( 9 ) and backrest ( 8th ), wherein the vehicle seat by means of the rotating device ( 15 ), the height adjustment, the backrest adjustment and the horizontal adjustment ( 11 ) from a main use position to a main position inside the driver's cab ( 1 ) and at least in these two positions can be completely locked by suitable devices. Vehicle seat according to claim 1, characterized in that it is rotated in its main position of use to the direction of travel, while the height adjustment is in its upper constructively predetermined position, the backrest ( 8th ) substantially perpendicular to the seat part ( 9 ) and the horizontal adjustment ( 11 ) is located in the front constructively predetermined position. Vehicle seat according to claim 1 or 2, characterized in that in an alternative position of use transverse to the direction of travel and to the driver's cab ( 1 ) is turned back, while the height adjustment is in its upper constructively predetermined position, the backrest ( 8th ) substantially perpendicular to the seat part, ( 9 ) and the horizontal adjustment ( 11 ) is in the rear constructively predetermined position. Vehicle seat according to one of the preceding claims, characterized in that it is located in its main position completely below a cab bed ( 2 ) of a lorry, whereby it is transverse to the direction of travel and to the driver's cab ( 1 ) is turned back, the backrest ( 8th ) completely towards the seat part ( 9 ), the height adjustment is in its lower constructively predetermined position, the horizontal adjustment ( 11 ) is in its rear constructively predetermined position. Vehicle seat according to claim 4, characterized in that in the main position the backrest ( 8th ) completely on the seat part ( 9 ) rests. Vehicle seat according to one of the preceding claims, characterized in that it is rotated in an alternative stowage position along or transversely to the direction of travel, the height adjustment is in its lower or upper constructively predetermined position and the horizontal adjustment ( 11 ) is in its rear or front constructively predetermined position, wherein the backrest ( 8th ) is positioned substantially vertically and the seat part ( 9 ) is completely turned up. Vehicle seat according to one of the preceding claims, characterized in that the horizontal adjustment ( 11 ) a single-track linear guide ( 5 ) as a guide device. Vehicle seat according to one of the preceding claims, characterized in that the height adjustment a column guide ( 10 ), which is blockable within arbitrary height positions within its structurally predetermined height adjustment range. Vehicle seat according to one of the preceding claims, characterized in that the height adjustment has an integrated spring force support, which at least partially compensates the weight of a person or an object which are located on the vehicle seat. Vehicle seat according to claim 9, characterized in that the spring force support the height adjustment, a suitable, spring-locking gas spring is used. Vehicle seat according to one of the preceding claims, characterized in that the turning device ( 15 ) has a locking device with at least four locking positions, wherein the vehicle seat in its upper and in its lower height position by means of the locking device rotationally fixed relative to its seat base ( 3 ) is lockable. Method for bringing a vehicle seat according to one of the preceding claims from a main use position into a main position, the following steps being carried out in any order: the vehicle seat is moved by means of the rotating device ( 15 ) From the pointing in the direction of main use position in a direction transverse to the direction of travel and to the center of the cab ( 1 ), the vehicle seat is brought by means of the height adjustment in its lower constructively predetermined height position, where it automatically engages in a rotation angle lock, - the vehicle seat is by means of horizontal adjustment ( 11 ) from the front horizontal position along a linear guide ( 5 ) is moved to a rear horizontal position in which it automatically locks. The method of claim 12, wherein the following steps are performed in the order given: - the vehicle seat is first moved by means of the height adjustment from the upper height position to a lower altitude position, - the vehicle seat is then by means of the rotating device ( 15 ) from the main service position pointing in the direction of travel into a direction transverse to the direction of travel and to the middle of the driver's cab ( 1 ) turned back position, - the backrest ( 8th ) of the vehicle seat is then fully towards the seat part ( 9 ) and latched there, - the vehicle seat is then brought by means of the height adjustment in its lower constructively predetermined height position, where it automatically engages in a rotation angle lock, - the backrest ( 8th ) of the vehicle seat is then fully towards the seat part ( 9 ) and locked there, - the vehicle seat is last by means of horizontal adjustment ( 11 ) from the front horizontal position along a linear guide ( 5 ) is moved to a rear horizontal position in which it automatically locks.

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