DE102006055967A1 - Seat's height adjusting unit for e.g. sports utility vehicle, has adjusting lever and transmission in effective connection over actuatable coupling unit, where movement of lever allows adjustment of seat height only in coupled condition - Google Patents

Abstract

The unit (1) has an adjusting lever (2) and a step-by-step switch transmission (3) for converting an actuation of the lever into a vertical adjustment of a seat i.e. vehicle seat. The adjusting lever and the transmission stand are in effective connection over an actuatable coupling unit (10), where the movement of the lever allows adjustment of height of the seat only in a coupled condition. The adjusting lever has an actuating unit (16) i.e. button (17, 17a), for actuating the coupling unit.

Description

The The invention relates to an adjusting unit for the height adjustment of a seat with the features according to the preamble of claim 1.

to Seat height adjustment It is known to manually move a lever between the body and Seat part side face is arranged to operate. This adjustment lever acts on Stepping gear, with which the seat surface can be moved upwards or downwards.

In In practice, it may be when entering or exiting persons, in particular at higher arranged vehicles, such as SUVs, MPVs, etc., for automatic - and thus unwanted - adjusting the Levers are coming. reason for this is that the relatively high-lying lever by the one or person withdrawing from accidentally being charged improperly downwards can, whereby the set by the vehicle user desired position the seat is lost. This can be the case, for example. by the person entering or exiting accidentally by edition by the body weight or operated by a caught clothing part of the lever.

outgoing From this, the invention is based on the object, a device for height adjustment to create a seat that such an accidental adjustment in particular prevents entry or exit.

These The object is achieved with the features of claim 1.

Of the Invention is based on the core idea that the adjusting lever with the transmission preferably designed as a stepping gear via a Coupling unit is connected. Only after actuation of the coupling unit the adjustment lever acts on the gearbox, giving it a height adjustment of the seat can come. In the decoupled state, the lever can indeed be moved, the operative connection with the indexer but is canceled, so that no seat height adjustment takes place.

advantageously, the adjusting lever has an actuating unit for the Coupling unit on. This is in particular by a button on Adjusting lever is formed, which is an actuation of the coupling unit causes, which is preferably designed as a coupling mechanism. This has the advantage that existing height adjustment easy convertible are, by the already existing stepgear essentially can stay the same while the previous lever against the lever with clutch mechanism and button is exchanged.

To an embodiment the invention, the key is designed as a push button. After another embodiment The invention provides a sliding key. After another preferred embodiment the invention, the key consists of a combination of pull or push button and a pushbutton.

The The coupling unit itself is initiated by pressing the key. Over a Clutch mechanism becomes an engagement element, especially in shape a bolt, within an engagement pattern or backdrop in the Move the stepping gear. Here, the solution is conceivable that by pressing the Button engagement of the clutch forward or backward (i.e. in or against the direction of travel) is possible.

A fourth embodiment relates to a so-called "ballpoint pen mechanism", in which a trigger within of the adjusting lever by snapping and disengaging the mechanics are made can.

following The invention will be described with reference to FIG. Closer. Show here

1 a representation of the first embodiment of an adjustment with a combined push-pull and pushbutton;

2 a further illustration of the first embodiment of the adjusting unit according to 1 ;

3 an illustration of the embodiment according to 1 with activated push-button and pushbutton in the engaged state;

4 an illustration of the embodiment according to 1 with transparent representation of the adjustment lever;

5 a representation of an adjustment unit according to a second embodiment with a push button;

6 a representation of an adjustment unit according to the third embodiment with a shift key;

7 an illustration of an adjustment according to a fourth embodiment with a push button.

In the 1 is an adjustment unit 1 for the height adjustment of a seat (not shown), showing an adjusting lever 2 and a step transmission 3 includes, which stepwise the move the lever 2 up and down in a vertical movement of the seat converts. For operation of the stepping gear 3 is the lever 2 via a transmission medium 4 in the form of a rigid lever element 5 connected. This lever element 5 has a first end part 6 with a tooth grid 7 (see. 4 ), which for a secure locking in the plastic material 8th of the adjusting lever 2 provides. The second end part 9 of the lever element 5 acts on the indexer 3 ,

According to the invention now to achieve a disengaging and engaging this mechanism of action between lever 2 and step transmission 3 by means of a coupling unit 10 interruptible. This is in the outer edge 11 of the stepping gear 3 an intervention pattern 12 - here an L-shaped neckline 13 - brought in. Here, the one leg 14 of the clipping 13 down, while the other leg 15 in the direction of an operating unit 16 , here's a button 17 , points. In this section 13 engages as an intervention element 18 a bolt 19 one. This is as part of the coupling unit with a lever mechanism 20 in the form of two interacting levers 21 . 22 connected. In the embodiment shown, the key is 17 as a combined push and push button 17a educated. Is the button 17a not operated, the bolt is located 19 in its first, non-actuated, position, and indeed in the position shown above the downwardly pointing leg 14 of the clipping 13 , Will now the lever 2 operated, the bolt becomes 19 along the down-facing thigh 14 of the section 13 pressed. As the bolt 19 no obstacle is experienced, the stepping gear 3 not moved. The adjusting lever 2 is indeed moved, but it does not come to a height adjustment of the seat. In this way, an unwanted height adjustment is avoided.

Now, if the operator desires a height adjustment of his seat, the button is 17 to press. This will be the lever mechanism 20 and the bolt 19 moved forward. By the bolt 19 in the second leg 15 of the clipping 13 engages, he can at a subsequent actuation of the adjusting lever 2 no longer move freely. In this way the bolt takes 19 at one through the lever 2 induced movement of the indexer 3 With. There is a coupled height adjustment of the seat.

With the help of 2 and 3 In particular, the movement of the combined key ( 17a ) and the impact on the lever mechanism 20 and the bolt 19 (hidden here). Preferably, the combined push and push button 17a moved forward and 30 ° down.

5 represents a further embodiment of the adjustment unit with a pure push button 17b This embodiment is here with a latching movement of the coupling unit 10 connected to the front. The bolt 19 the coupling unit 10 is in a - seen in the direction of travel - forward groove 23a an intervention pattern 12 emotional. When defining the direction, it is assumed that the seat is oriented in the direction of travel.

In contrast, the engagement according to a third embodiment ( 6 ) after pressing a pure sliding button 17c by a latching movement of the bolt 19 the coupling unit 10 to the rear (contrary to the direction of travel) into a groove 23b causes.

Finally, the shows 7 an adjustment unit 1 , which has a coupling mechanism in the manner of a ballpoint pen mechanism. By pressing a pushbutton 17b becomes one in the adjustment lever 2 guided coupling element 24 against the force of two coil springs 25 . 26 moved backwards against the direction of travel. In the engaged position comes a corresponding receiving groove 27 at its rear end engaged with a pin or projection 28 , so that the adjusting lever and the gear come into operative connection. This is a pushbutton with a clutch fork.

1

adjustment

2

adjusting

3

step manual

4

transmission means

5

lever member

6

first end

7

tooth pitch

8th

Plastic material

9

end

10

clutch unit

11

edge step manual

12

interference pattern

13

L-shaped neckline

14

leg

15

leg

16

operating unit

17

button

17a

combined Slide and push button

17b

pushbutton

17c

sliding button

18

engaging member

19

bolt

20

lever mechanism

21

lever

22

lever

23a

groove

23b

groove

24

coupling element

25

coil spring

26

coil spring

27

receiving groove

28

Pin / boss

Claims (6)

Adjustment unit ( 1 ) for the height adjustment of a seat, in particular a vehicle seat, with an adjusting lever ( 2 ) and a transmission, in particular a step transmission ( 3 ), for converting the operation of the adjusting lever ( 1 ) in a height adjustment of the seat, characterized in that the adjusting lever ( 2 ) and the transmission, in particular the step transmission ( 3 ), via an actuatable coupling unit ( 10 ) are in operative connection, wherein the seat is adjustable only in the engaged state via the lever movement in height. Adjusting unit according to claim 1, characterized in that the adjusting lever ( 2 ) an actuating unit ( 16 ), in particular a key ( 17 . 17a -C), for the actuation of the coupling unit ( 10 ) having. Adjusting unit according to claim 2, characterized in that the actuating unit ( 16 ) a push-button or a shift key ( 17b , c) or a combination of these two buttons ( 17a ). Adjusting unit according to one of the preceding claims, characterized in that the coupling unit ( 10 ) comprises: an engagement element ( 18 ), which via a lever mechanism ( 20 ) is movable between a first position and a second position, an engagement pattern ( 12 ) in the housing of the transmission, which is formed so that the engagement element ( 18 ) in a first decoupled position during movement of the adjusting lever ( 2 ) and in a second engaged position in engagement with the transmission (FIG. 3 ) and thus the movement of the adjusting lever ( 2 ) on the transmission ( 3 ) transmits. Adjusting unit according to claim 4, characterized in that the engagement element ( 18 ) for coupling (second position) either into a corresponding engagement pattern ( 12 . 23a , b) moved in the direction or opposite to the vehicle direction. Adjusting unit according to claim 4 or 5, characterized in that the engagement element ( 18 ) a bolt ( 19 ) or pin, which via the lever mechanism ( 20 ) in the form of at least two levers ( 21 . 22 ) is moved.