KR101394919B1 - Vehicle seat, particularly motor vehicle seat - Google Patents

Abstract

The present invention relates to a vehicle seat (1), in particular an automobile seat, which comprises at least one seat rail (4a) for adjusting the longitudinal direction of the vehicle seat (1) (3) having at least one second seat rail (4b) displaceable longitudinally with respect to the longitudinal direction of the seat portion structure (3), and a second seat rail (1) can be moved from a use position to an unused position, for which the seat part structure (3) is pivotable, and the adapter (17) has a belt buckle The adapter 17 can be releasably locked to the vehicle structure and the adapter 17 is connected to the first seat rail 4a and the belt buckle 11 remains motionless during longitudinal adjustment.

Description

VEHICLE SEAT, PARTICULARLY MOTOR VEHICLE SEAT,

The present invention relates to a vehicle seat, particularly an automobile seat, having the features of the preamble of claim 1.

DE 101 53 872 C1 describes a longitudinally adjustable vehicle seat of this type having a plurality of sitting places wherein the belt buckle disposed transversely between the longitudinal sides of the vehicle seat is of the type Is loosely moved during orientation and is attached to an additional rail system to provide a short path for belt force introduced into the vehicle structure at the time of impact. To allow the seat sub-structure to pivot, the rail system is coupled to the vehicle structure at one end and is releasably locked to the vehicle structure by a lock at the other end.

The present invention is based on the object of improving such a vehicle seat mentioned earlier. This object is achieved by a vehicle seat having the features of claim 1 according to the present invention. The advantageous details are the contents of the dependent claim.

A belt buckle disposed transversely between two longitudinal sides of the seat element structure is attached to the adapter. A cost effective method for a longitudinally adjustable vehicle seat having a pivotable seat sub-structure is provided by an adapter coupled to the first rail seat, so that the belt buckle remains motionless during longitudinal adjustment, It is cost effective because it does not have a complicated rail system, while providing a short path to deliver more of the required force in collision situations. All that is needed for the seat belt to interact with the belt buckle is to provide sufficient length in all longitudinal positions of the seat that can be achieved by longitudinal adjustment.

The vehicle seat can be moved by the pivot of the seat portion structure from the use position to the non-use position. However, the adapter must be able to pivot simultaneously with the belt buckle. In use, the adapter may be releasably locked to the vehicle structure by a latch or the like, in order to connect the adapter mounted on the seat part structure to the vehicle structure as soon as possible or at short intervals. Upon collision mapping, the latch preferably receives no moment or receives a closing moment and transmits the force introduced by the belt buckle to the latch through the adapter to the vehicle structure over the shortest interval. On the other hand, when starting from the use position and / or returning to the use position, when the latch preferably receives an opening moment, i. E. The latch is open under force control, the special unlocking means need not be pivoted.

The different reactions of the latches are preferably made by the special configuration of the features of the latches and by the arrangement of the features for different lines of action and lines of action. The improvement in collision mapping leads to, for example, a specific deformation of the cross member for supporting the adapter, for example. The latches can be further secured by the fixture, which is only effective at impact mapping, by bringing the latch into contact with the adapter.

The invention is described in more detail below with reference to exemplary embodiments shown in the drawings.

Figure 1 shows a side view in partial cut-away form of an exemplary embodiment in use position,

Figure 2 shows a perspective view of an exemplary embodiment in use position,

Figure 3 shows a partial view of an exemplary embodiment in use position,

Fig. 4 shows a partial view corresponding to Fig. 3, in which the latch is opened when starting from the use position or returning to the use position,

Fig. 5 shows a partial view corresponding to Fig. 3, in which the latch leaves the bolt or comes into contact with the bolt when starting from the use position or when returning to the use position,

Figure 6 shows a partial view corresponding to Figure 3, in which the latch is removed from the bolt or approaches the bolt when starting from the use position or returning to the use position,

Figure 7 shows a partial view of an exemplary embodiment in use position during a conflict mapping,

Figure 8 shows a side view of the adapter,

Figure 9 shows a side view of the latch,

Figure 10 shows a front view of the latch,

Figure 11 shows a side view of the rear foot with a lock.

The vehicle seat 1 is designed for seats in the center or rear row of the vehicle. The orientation of the vehicle seat 1 within the vehicle and its typical direction of travel is dependent on the directional details used in the following, namely longitudinal, running in the direction of travel, Define the direction. In the case of the present invention, the vehicle seat 1 is divided into two third parts (or 60%) and one third part (or 40%) in the transverse direction, but may extend without being divided over the entire width.

The vehicle seat 1 includes a seat portion structure 3 and the seat portion structure 3 has a first seat rail 4a and a second seat rail 4a on both sides (i.e., both longitudinal side surfaces) 4b), the first and second seat rails being able to engage each other around the perimeter in a manner known per se with essentially C-shaped profiles, displaceable relative to one another in the longitudinal direction and lockable relative to one another. The seat rails 4a, 4b are each accessible from the side for fixing them. At the front end of the first seat rail 4a in the longitudinal direction, the seat portion structure 3 is coupled to the structure of the vehicle by means of each forward rotation bearing 5. Each of the rear feet 6 is fixed by a respective locking device 7 at the rear end of the first seat rail 4a in the longitudinal direction. The seat portion structure 3 can be releasably locked to the vehicle structure by the locking device 7. [

The vehicle seat 1 can be longitudinally adjusted by the seat rails 4a and 4b, that is, different longitudinal positions of the vehicle seat 1 can be set, Define each use position suitable for use. The first seat rail 4a remains stationary with the front swivel bearing 5 and the rear foot portion 6 while the second seat rail 4b remains stationary with respect to the seat back structure 3 With respect to each other.

Starting from one of the use positions, after the locking device 7 on both sides of the seat element structure 3 is unlocked, the seat element structure 3 is moved to the center of the horizontal pivot axis defined by the front swing bearing 5, , And can be pivoted upwardly from a package position to an unused position in the case of the present invention. The seat part structure 3 supports the seat cushion in an essentially known manner. In the case of the present invention, the seat portion structure 3 extends only over two-third portions in the transverse direction, but may extend over the entire width of the vehicle seat 1. [

The vehicle seat 1 further comprises a backrest 8 which can be attached to the seat part structure by an accessory 9 and pivoted relative to the seat part structure. Starting from the use position, after the accessory 9 is unlocked, the backrest 8 can be pivoted forward about the horizontal pivot axis defined by the accessory 9 on the seat structure 3, The backrest starts to move to the package position or forms an unused position, i.e., a table position. The backrest 8 is upholstered in an essentially known manner. In the case of the present invention, the backrest 8 also extends only over two-thirds in the transverse direction, but may extend over the entire width of the vehicle seat 1. [

The vehicle seat 1 has three seats, two of which are assigned to the seat portion structure 3. Due to the pivotability of the seat portion structure 3, the belt buckle 11 has to be fixed to the seat portion structure 3. [ The term "belt buckle" is intended to refer to an entire subassembly including whip-like elements and fasteners and the like. Since the entirety of the belt buckle 11 is not fixed to the limbs extending in the longitudinal direction or longitudinal direction of the seat portion structure 3 in the form of a frame in the present invention, A special fixation to the seat portion structure 3 must be provided for at least one of the belt buckles 11 disposed between the two longitudinal sides of the seat portion structure 3. To this end, the seat portion structure 3 has a cross member 15 in the region of its rear end, and the cross member extends in the lateral direction and is fixed to the rear foot portion 6 on the end side. The adapter 17 lies on the cross member 15 which is tubular in the case of the present invention - substantially centered in the case of the present invention, and the adapter is fixedly connected to the cross member 15. The belt buckle 11 is attached to the adapter 17 mounted on the seat portion structure in the region arranged upstream of the cross member 15.

In addition, the latch 21 is coupled to the adapter 17 in the area disposed downstream of the cross member 15, and the latch is pivotable relative to the adapter 17 and is pre-stressed in the closed position. In Fig. 3, the closing direction is clockwise. The latch 21 is locked in position by bolts 23 mounted on the vehicle structure, i.e., bolts 23 that are fixedly connected to the vehicle structure. The bolt 23 is oriented in the transverse direction. The bolt may be a section of a clip or the like. The latch 21 surrounds the bolt 23 by a hook mouth, hereinafter referred to as an internal shape 21a. The fixed portion 21b is provided on the latch 21, and is integrally formed on the latch in the case of the present invention. In the case of the present invention, the fixed portion 21b projects perpendicularly to the pivoting plane of the latch 21, that is, toward the adapter 17.

During longitudinal adjustment of the vehicle seat 1, the belt buckle 11 remains stationary due to the fixing to the first seat rail 4a. The seat belt 25 interacting with the belt buckle 11 is designed to have a length that is effective at all longitudinal positions of the seat.

At the start of movement from the use position to the package position, the seat portion structure 3 starts to move upward from the rear end. The inner shape portion 21a is formed in such a manner that the movement to the upper portion (that is, the vertical upper portion) applies an opening moment to the latch 21 and the latch 21 pivots in the opening direction when the seat portion structure 3 is further moved, (23) and separated from the bolt. After leaving the bolt 23, the pre-stress of the latch 21 pivots the latch again in its closing direction. The fixed portion 21b on the latch 21 is formed integrally on the adapter 17 in the case of the present invention by the contact of the adapter 21 with the pivot angle of the latch 21, And is limited by a lug 17b that projects radially with respect to the axis.

The latch 21 has an external shape 21c. When the seat portion structure 3 pivots downward (i.e., vertically downward) toward the end of the movement, the outer shape portion 21c comes into contact with the bolt 23 when returning from the package position to the use position do. The outer shape portion 21c is configured such that the latch 21 receives an opening moment due to the contact with the bolt 23 and the downward movement and when the seat structure 3 is further moved, So as to engage with the bolt 23 and to pivot again in the closing direction due to the preliminary stress and consequently to be locked by the bolt 23. When starting from the use position and returning to the use position, the lines of action of the force acting on the latch 21 are thus directed vertically upwards or downwards.

When the vehicle seat 1 is occupied by the occupant, the force acting on the occupant in the crash event is introduced onto the belt buckle 11 and onto the adapter 17 through the seat belt 25. [ In the frontal collision event, the compounding force on the latch 21, that is, the line of action of the belt force, is directed obliquely upward and forward. The internal features 21a are initially oriented and structured so that the belt force does not apply an opening moment to the latch 21 but rather a closing moment. After a certain level, the impact force also plastically deforms the cross member 15, if appropriate, the adapter 17. The deformation slightly increases the spacing of the cross member 15 (and, where appropriate, of the latch 21 with respect to the adapter 21) from the bolt 23. If the latch 21 pivots upward somewhat due to a change in the geometry, the stop 21b will come into contact with the adapter 17 in order to prevent further opening of the latch 21, in this case in the opening direction .

Reference list

1: vehicle seat

3: Seat structure

4a: a first seat rail

4b: second seat rail

5: Forward rotation bearing

6: Hip foot

7: Locking device

8: Backrest

9: Accessories

11: Belt buckle

15: Cross member

17: Adapter

17a: Rug

21: Latch

21a:

21b:

21c:

23: Bolt

25: Seat belt

Claims (13)

As a vehicle seat, Seat structure (3) and at least one belt buckle (11) The seat portion structure 3 includes at least one first seat rail 4a which does not move during longitudinal adjustment for longitudinal adjustment of the vehicle seat 1, (4b) as far as possible, The belt buckle 11 is attached to the adapter 17 and is disposed between two longitudinal side surfaces of the seat portion structure 3, The vehicle seat 1 can be moved from the use position to the unused position, whereby the seat portion structure 3 can be pivoted and the adapter 17 can be releasably locked to the vehicle structure In the vehicle seat, Characterized in that the adapter (17) is connected to the first seat rail (4a) and the belt buckle (11) remains stationary during longitudinal adjustment Vehicle seat. The method according to claim 1, Characterized in that the adapter (17) is releasably lockable with respect to the vehicle structure by means of a latch (21) Vehicle seat. 3. The method of claim 2, (i) starting from the use position to the non-use position, or (ii) returning from the non-use position to the use position, or (iii) starting from the use position to the non- When returning from the non-use position to the use position, the latch 21 experiences an opening moment, and does not receive any moment at the time of collision at the use position or releases the closing moment Characterized by receiving Vehicle seat. The method according to claim 2 or 3, Characterized in that the lines of force of the force acting on the latch (21), when starting from the unused position to the unused position and returning from the unused position to the used position, Vehicle seat. The method according to claim 2 or 3, Characterized in that at the time of collision mapping, the line of action of the force acting on the latch (21) is directed obliquely upwardly Vehicle seat. The method of claim 3, Characterized in that the latch (21) has features (21a, 21c) and the structure and orientation of the features with respect to the force determine one or more of an opening moment and a closing moment Vehicle seat. 7. The method according to any one of claims 2, 3 and 6, Characterized in that said latch (21) is coupled to said adapter (17) and is locked in use position by bolts (23) mounted on said vehicle structure Vehicle seat. 8. The method of claim 7, The latch 21 has an internal shape portion 21a which surrounds the bolt 23 at the use position and releases the bolt 23 when the bolt 23 is moved to the unused position To Vehicle seat. 8. The method of claim 7, The latch (21) has an outer shape (21c), and when the outer shape is returned to the use position, the latch comes into contact with the bolt (23) Vehicle seat. 7. The method according to any one of claims 2, 3 and 6, The latch 21 has a stop 21b which limits the pivoting angle of the latch 21 with respect to the adapter 17 in at least one of a closing direction and an opening direction Featured Vehicle seat. 7. The method according to any one of claims 2, 3 and 6, The seat part structure 3 has a cross member 15 to which the adapter 17, the first seat rail 4a and the rear foot 6a on the first seat rail 4a ) Are fixedly connected. ≪ RTI ID = 0.0 > Vehicle seat. 12. The method of claim 11, Characterized in that at least one of the cross member (15) and the adapter (17) is deformed in a collision event Vehicle seat. 13. The method of claim 12, Wherein at least one of the cross member (15) and the adapter (17) deforms the latch (21) to contact the adapter (17) to prevent opening of the latch Vehicle seat.

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