Seat and method

Translation of description of equivalent WO 2005025931 A1

Seat and procedures

The invention relates to a seat, especially a vehicle seat, according to the preamble of claim 1. In particular for motor vehicles, it is increasingly necessary to provide components that meet the convenience needs of its users to an ever greater extent. For car seats, the backrest of a located in front of the rear bench seat affects by the fact that, for example, as an aid for in a motor vehicle for users of the motor vehicle who want to take in the rear seat of a motor vehicle space, forward, ie away from the rear seat, folded shall be. For particularly for families particularly suitable vehicles, particularly so-called "Vans" or "MPV", it is advantageous that additional function options or positions of vehicle seats are possible, for example, the back of such a seat can be folded in such a way forward that the back of the is back usable as a table.

It is generally known to use car seats, particularly in vehicles that do not have separate doors as access for a rear seat, a backrest having such that easy access, passengers on the rear seat backrest of the vehicle seat is folded forwards. For this purpose, a mechanical release device is generally operated manually, so that the backrest, which is provided locked in its normal position in a given, adjustable angle of inclination to the seat can be folded forwards. Here, it is disadvantageous that the entire seat structure remains in the same position, that remains in the same place, and thus the entry of passengers is still a hindrance.

The invention is therefore based on the object, a seat, in particular to provide a vehicle seat which has a high degree of possible variations with respect to its intended use for different situations of adjustment. In addition, the invention provides, to prevent misuse of the setting or an unforeseen combination of settings. This object is achieved by a seat with a backrest part and a seat portion, the back portion is provided relative to the seat part of a normal position into a folded position and vice versa foldable, the seat having a seat structure, wherein the seat part is provided relative to the seat substructure movable , being further provided for fastening the seat part to the seat base at least one front first fastening, a rear second fastening and a diagonal mounting, the seat except in a normal position at least in a boarding position and a retracted position is adjustable, said second attachment in the entry position is provided dissolved, and wherein the diagonal fastening is provided dissolved in the retracted position. This results in a high degree of adjustment that leads to an increase in ease of operation when using the seat and the vehicle.

In a preferred embodiment of the invention, the seat part in the second attachment from the seat base area is in the entry position provided separately and / or it is the diagonal fastening provided longitudinally displaced relative to its setting in the normal position in the retracted position. This results in particular the advantage that the place where the seat part is in its Norma position, for use by an occupant can be released. Furthermore, this results in the advantage that the seat can be lowered provided that that even with a relatively thick backrest part of the seat is a use of the backrest is possible as a table without such a "table" unfit for use in the vehicle, as for example positioned too high, would.

It is furthermore advantageous that for the separation of the seat part in the second fastening region is a second actuator is provided and / or that for the longitudinal displacement of the diagonal mounting a first actuator is provided, wherein the first and / or said second actuator are provided in particular as electromotive actuators. Advantageously, caused by the fact that the facilitation of the various settings of the seat automated or can be performed controlled and thus a direct unlocking deleted by a user, which makes it easier for a use, because, for example does not have to be handled in inaccessible areas of the seat and on the other simplifies the design of the seat and thus cheaper, because no cumbersome weight and causing handles, levers or other actuating devices must be provided.

Furthermore, it is advantageous that first monitoring means are provided, said first monitoring means effect the prevention of the solution of the diagonal fastening in the entry position and / or the second monitoring means are provided, but wherein the second monitoring means effect the prevention of the solution of the second fastening in the retracted , This makes it erfindunsgemäß advantageously possible that an abuse of the various seat adjustment options by improper use is largely excluded.

Another advantage is that release means are provided, wherein the release means in-folded position to their rest effect solution of either the diagonal fastening or the second fixing only a predetermined time interval. This abuse of use of the seat are still limited.

It is also advantageous that the first monitoring means and / or the second monitoring means, and / or the releasing means are provided as micro-switch. This makes it possible in a particularly simple and cost-effective fashion, to provide monitoring means of the invention to a seat.

It is also advantageous that the seat has a control device for controlling the solution of the attachments depending on the position occupied by the seat. Through the realization of the control device, for example, as a programmable controller, it is possible in the invention in a simple manner to exclude an abuse of the various seat adjustment options invention.

Another object of the present invention is a method in which an inventive seat is controlled such that it from about the highest level of User selectable settings features while an abuse of this increased functionality is limited to a large extent.

The invention will now be described with reference to embodiments shown in the drawing.

1 shows an inventive seat with a backrest part and a seat part.

Figure 1a shows schematically a control.

Figure 2 shows various components of the seat according to the invention in an enlarged representation.

Figure 3 shows a detail of a side portion of the seat part 3 with attached triggering means.

Figure 4 shows the diagonal fastening.

Figure 5 shows the second fastener.

6a to 6g show a sequence of positions of the seat according to the invention with respect to the entry position.

Figures 7a to 7g show a sequence of positions of the seat according to the invention with reference to the retracted position.

Figure 8a-8d shows a first sequence of partial abusive positions of a seat.

Figure 9 illustrates the monitoring principle illustrated in Figure 8 with reference to a logic diagram. Figure 10a to 10d shows a second sequence of partial abusive positions of a seat.

Figure 11 illustrates the monitoring principle illustrated in Figure 10 using a logic diagram.

Figure 1 shows a vehicle seat according to the invention 1 or seat 1 with a backrest part 2 and a seat part 3, wherein the seat part 3 with a seat substructure 4 is connected via a front first fastening 20, a rear second fastening 40 and a diagonal fastening 30th The seat 1 according to the invention in particular substantially symmetrically provided with respect to its longitudinal axis so that in an advantageous embodiment of the seat 1, both the front first attachment 20 and the second attachment 40 and the diagonal fastening 30 on both the left side and on the right side of seat 1 are provided. In the following, however, 30 and 40 spoken without differentiation of the two sides of the seat 1 of the fasteners 20, in the singular, but where in each case both sides of a respective attachment 20, 30 and 40 are meant.

In Figure 1a, the controller 10 is shown schematically, which is connected to a tripping means 21, a first monitoring means 31, a first actuator 32, a second monitoring means 41, a second actuator 42 and an actuating means 43rd By means of the control 10, the actuators 32, 42 of the second attachment 40 and the diagonal attachment 30 in dependence of the states of the release means 21 and the monitoring means 31, 41 and of the actuating means 43, that is a function in particular of the existing encryption and / or Entriegelungszustandes of seat controlled.

2 shows various components of the seat according to the invention are represented in an enlarged view, which is enlarged explosively. Of the seat part 3 is not fully illustrated, only one lateral frame 3b is shown, on which the tripping means 21 can be seen. Furthermore, the second fastening 40 and the diagonal fastening 30 are shown with their individual parts. The second attachment 40 includes the second and the second Aktuator'42 Monitoring means 41. The diagonal fastening 30 comprises the first actuator 32 and the first monitoring means 31 Indicated is also a related to the backrest portion 2 operating part 23, which is moved by a movement of the backrest part 2 and the trigger means 21 is operated at geklapptem forward backrest part second

3 shows a section of the side part shown 3b of the seat part 3 with attached release means 21, wherein the moving operation part 23 so interacts with the tripping means 21 in a left part of Figure 3 in function of the position of the backrest or the backrest part 2 together, that the release means 21 a Nachvorneklappen the backrest part 2 signaled in its folded position. In the right part of the figure 3, the actuation part 23 is provided corresponding to the normal position of the backrest part 2, so that the actuating member 23 does not cooperate with the release means 21 and signals the folded position of the backrest part second

4 shows the diagonal attachment 30 is shown with its first actuator 32, its first monitoring means 31 and an adjusting bracket 34, acted on by the first actuator 32nd Upon exposure of the first actuator 32 to the adjusting clip 34 of the diagonal fastening 30, the diagonal fastening 30 is released and can be inventively particularly longitudinally displaced.

In Figure 5, the second attachment 40 is shown, wherein the second attachment 40 to the second actuator 42, the second monitoring means 41 and also an adjusting bracket 44 includes, on the - analogous to the diagonal fastening 30 - the second actuator 42 acts. Upon exposure of the second actuator 42 on the adjusting clip 44 of the second fastening 40 the second attachment is 40 dissolved and may, in particular the seat part 3 share relative to the seat base 4, so that the seat 1 and the backrest part 2 together with the seat part 3 to the front first fastener 20 is around, or about a rotation axis in the front, first attachment area 20 is provided rotatably.

In Figure 6a through Figure 6g a succession of positions of the seat 1 of the invention in order to adjust the seat 1 from its normal position its entry position and to illustrate back to its normal position. On the designation of the various components of the seat in any case, this partial figures for simplicity has been omitted for simplicity. In Figure 6a, the seat 1 is shown in its normal position. The seat 1 is illustrated in Figure 6b with geklapptem forward backrest part. 2 By Nachvorneklappen the backrest part 2, the triggering means 21 is activated, so that the second actuator 42 release of the seat part 3 in the second attachment portion 40 may provide, as shown in Figure 6c. In Figure 6d, the entry position of the seat 1 is shown. Visible, that there is sufficient space at the point at which there is the seat part 3 in the normal position available to enable, for example, a user entry into a motor vehicle comfortable. In Figure 6e, the movement of the seat 1 or of its backrest part 2 and its seat part 3 is shown back to the normal position, which is done in Figure 6f an engagement of the second fastener 40, so that the seat part 3 is firmly connected to the seat structure. 4 In Figure 6g, the seat 1 is shown in its normal position.

In Figure 7a to figure 7g a succession of positions of the seat 1 of the invention to illustrate the adjustment of the seat 1 from its normal position to its retracted position and back to its normal position. On the designation of the various components of the seat in any case, this partial figures for simplicity has been omitted for simplicity. In Figure 7a, the seat 1 is shown in its normal position. According to the invention it is provided that a user by means of the controller 10 associated with the actuating means 43, which, however, in the figures -, may initiate the adjustment of the retracted position is not shown - except schematically in Figure 1a. For this purpose, the user actuates the actuating means 43, for example a push button, touch screen or the like, whereby the controller 10 indicates that the user intends to adjust the seat 1 to the retracted position. can therefore be made between the user request, the adjustment of the seat in the entry position and to the retracted position by the actuation of the actuating means 43rd The seat 1 is shown in Figure 7b with geklapptem forward backrest part. 2 By Nachvorneklappen of the backrest part 2, the release means 21 is activated, so that - the first actuator 32 may allow a longitudinal displacement of the diagonal fastening 30, - because of the previously performed operation of the operating means 43 whose beginning is shown in Figure 7c and the complete shift is shown in Figure 7d. Figure 7d is simultaneously the retracted the seat 1. The formed by the first fastener 20 and the second mounting 40 "parallelogram" is obtained by a latched, ie locked, diagonal fastening 30 in the normal position of the seat 1. In the retracted position of the seat 1, it is now so that by unlocking the diagonal mounting 30 a longitudinal displacement of the same is possible, which - leads to a "collapse" of the parallelogram - with appropriate manual operation of a user. In Figure 7e, the movement of the seat 1 or of its backrest part 2 and its seat part 3 is shown back to the normal position, which in turn 7f shows a longitudinal displacement of the diagonal part takes place in figure 7g to engagement of the diagonal fastening 30 in a normal position the corresponding seat 1 length leads.

In Figure 8a to Figure 8d, a first sequence of positions of a seat is shown to illustrate the adjustment of the seat from the retracted position to an unauthorized and the large adjustment of a seat abusive position. In the retracted position of the seat 1 shown in Figure 8a, the diagonal fastening 30 is set longitudinally displaced. If erect the backrest part 2 in this situation (. Cf. figure 8b) - wherein the trigger means 21 is turned off - and subsequently set again in its folded position (see figure 8c.) Is - the release means 21 is operated by the operating member 23 again, and introduced an unlocking or a solution of the second actuator 42 of the control 10 -, it is possible that 40 (see figure 8d.) a Nachvorneklappen the seat 1 on a lying through the solution of the second attachment in the first mounting portion 20 axis of rotation is possible in spite of the retracted naturally unlocked diagonal fastening 30th Such abuse of the setting is inventively prevented at the diagonal fastening 30, the first monitoring means 31 are mounted, which are operated by the solution of the diagonal fastening 30 in the retracted position and when actuated, a solution of the second attachment, ie an actuation of the second actuator 42, prevent. In Figure 9, the monitoring principle illustrated in Figure 8 to prevent the abuse shown in a seat 1 according to the invention again using a logic diagram. In Figure 9, four lines are given, representing the states of various components of the seat according to the invention. 1 Each row represents the time profile represents t of the state of the relevant component. The term "0" means here that the corresponding component is inactive or not actuated. The first line relates to the actuating means 43, the second row relates to the triggering means 21, the third line relates to the first actuator 32 and the fourth row relates to the first monitoring means 31 in a first point in time t1, the actuation means 43 is activated by a user operation. As a result, the backrest portion 2 is set in its folded position. When the folding position is reached, is characterized (by means of the actuating portion 23) of the trigger means 21 is activated, which is the case at the second time t2 10 by the actuation of the release means 21 is activated the controller during a predetermined time interval T of, for example 500 ms the first actuator 32 in order to achieve the. allow retracted. When the first actuator 32 has the adjusting clip 34 of the diagonal fastening 30 is released, the third time t3, the first monitoring means 31 is activated. The controller 10 is now provided according to the invention such that a subsequent activation of the second actuator 42 as long as is omitted as long as the first monitoring means signals an unlocking of the diagonal fastening 30 and this even in the event that the trigger means 21 - if necessary by shown in the Figure 8 adjustment processes of the backrest part 2 - is pressed again and could lead to a release of the second fastening 40 by activation of the second actuator 42 in principle.

In Figure 10a to 10d, a second sequence of positions of a seat is shown to illustrate the adjustment of the seat from the entry position into an illicit and the large adjustment of a seat abusive position. In the entry position of the seat 1 shown in Figure 10a, the second attachment is provided 40 achieved, ie the backrest part 2 and the seat part 3 can about a rotational axis lying in the first mounting area 20 are folded forward. If erect the backrest part 2 in this situation (. See Figure 10b) - the trigger means 21 is turned off - and subsequently reinstated in its folded position (see Figure 10c.) Is - the Trigger means 21 is actuated by the actuation member 23 again and it is eingeleitet- from the controller 10, a release, or a solution of the first actuator 32, it is possible that by the solution of the diagonal attachment 30 (see FIG. 10d), a longitudinal displacement of the diagonal fastening 30 in spite of the entry position, of course, not the second attachment 40 is conceivable. Such abuse of the setting is inventively prevented at the second attachment 40, the second monitoring means 41 are mounted, which are operated by the solution of the second fastener 40 in the entry position and when actuated, a solution of the diagonal fastening 30, ie a control of first actuator 32, prevent.

In Figure 11, the monitoring principle illustrated in Figure 10 to prevent the abuse shown in a seat 1 according to the invention again using a logic diagram. In Figure 11, three lines are shown, representing the states of various components of the seat according to the invention. 1 Each row represents the time course T of the state of the relevant component. The term "0" means here that the corresponding component is inactive or not actuated. The first line relates to the triggering means 21, the second line relates to the second actuator 42 and relates to the third line, the second monitoring means is adjusted by a mechanical release of the locking of the backrest part 2, the backrest 41. in a fourth time t4. in consequence, the backrest portion 2 is set in its folded position. When the retracting position is reached, characterized ( by means of the actuating portion 23) of the trigger means 21 is activated, which is the case at the fifth time t5. by the actuation of the release means 21 is activated, the controller 10 during a predetermined time interval T of, for example 500 ms the second actuator 42 in order to allow the achievement of the entry position . If the second actuator 42 has the adjusting clip 44 of the second attachment dissolved 40, in sechten time t6, the second monitoring means 41 is activated. The controller 10 is now according to the invention is provided such that a subsequent activation of the first actuator 32 as long as is omitted, as long as the second monitoring means 41 signals a release of the second fastener 40, and this also in the case that the triggering means 21 - if necessary by in the figure 10 illustrated the adjustment processes Backrest part 2 - is pressed again and could lead to a release of the diagonal fastening 30 by activation of the first actuator 32 in principle.

The triggering means 21 and the monitoring means 31, 41 according to the invention are particularly provided as contact switches or as micro switches that are switched mechanically by the movement of certain components. Representing these components is the operating part 23 for actuating the release means 21. It can be inventively provided in particular that part of the trip or monitoring means 21, 31, 41, a monitoring of the state to perform, while others carry out a monitoring of changes. For example, the invention provides that the release means 21 to "edges" reacts and is evaluated by the control device 10 on "flanks" of its signal, whilst outputting the first and second monitoring means 31, 41 only responds to detected or occupied states, ie be evaluated by the control device 10 exclusively on instantaneous signals out. From the latter there is the advantage that the evaluation of the monitoring means 31, 41 is independent of the movement history of the seat and thus an increased robustness of the system is given, for example, during power outages.

The distinction between the setting of the retracted position or the entry position from the normal position can according to the invention also occur in that a non-illustrated selector is provided which an adjustment represents the adjustment of the retracted position and the other adjustment is the adjustment of the entry position. This allows a user of the seat according to the invention to adjust these two position clearly and separately or initiate their attitude. LIST OF REFERENCE NUMBERS

1 seat 2 backrest part 3 seat portion 3b side part of the seat portion 4 seat substructure 10 control 20 first attachment 21 releasing means 30 diagonal fastening 31 first monitoring means 32 first actuator 34 adjusting clip the diagonal fastening 40 second securing 41 second monitoring means 42 of second actuator 43 actuating means 44 adjusting clip the second attachment t time course t1 first time t2 second time t3 third time t4 fourth time t5 fifth time t6 Sechter time interval T