DE102019210422B4 - restraint device - Google Patents

Abstract

Seat restraint device comprising two brackets (30) and two advancement means (32), each bracket (30) comprising a plurality of flexible elements (48) and rigid elements (56) arranged alternately in series along the respective bracket (30). each strap (30) having a first end and a second end, the first upper end being connected to a stationary member, each strap (30) being adapted to support a shoulder and a torso of a seat occupant (4) to enclose at least in sections, with each forward displacement device (32) being connected to a respective bracket (30), the respective bracket (30) being connected to the stationary component via the respective forward displacement device (32), the respective forward displacement device (32) is adapted to allow movement of an upper end of the bracket (30) relative to a backrest (18, 28) of the seat, each V The displacement device (32) has a kinematic lever (60) with a first end (62) and a second end (64) and a return spring (66), the first end (62) of the kinematic lever (60) being connected to the first end of the respective bracket (30) can be connected, wherein the second end (64) of the kinematic lever (60) can be connected to the seat, wherein a first end (68) of the return spring (66) can be connected at a section along the kinematic lever (60) between the two ends ( 62, 64), a second end (70) of the return spring (66) being able to be arranged on the seat, the kinematic lever (60) and the return spring (66) being designed to prevent a movement of the upper first end of the respective bracket (30) relative to the seat.

Description

The invention relates to a restraint device for a seat.

A seat belt may be used to secure a person in a seat of a vehicle. Furthermore, it is known from roller coasters that a shackle is used to secure a person on a seat of the roller coaster.

A safety restraint for a vehicle seat is from the reference DE 29 25 484 A1 famous.

A vehicle seat with a restraint bar is disclosed in the reference DE 10 2006 020 900 A1 described.

The pamphlet WO 2011/103351 A2 describes a restraint system for a vehicle.

The pamphlet DE 43 01 194 A1 shows a seat belt webbing for an occupant restraint device in a vehicle, which has transverse thickenings at intervals. Here, the thickenings are provided by transverse ribs.

An additional tool for attaching to a seat belt is from the publication JP H 10244904 A famous.

A security system for a passenger seat in a vehicle is from the reference DE 198 47 263 A1 famous.

The pamphlet WO 2004/028869 A1 shows a positioning device for a safety belt.

The pamphlet DE 197 54 311 A1 shows a backrest with a headrest on a driver's seat, which has a safety belt. This backrest includes a clamping device with two opposing clamping jaws.

A vehicle safety seat for a child is from the reference US9649955B2 famous.

In the pamphlet DE 21 63 451 B2 describes a seat belt system for a vehicle.

The pamphlet DE 10 2007 062 590 B3 describes a belt presenter and a three-point automatic belt with a belt presenter.

The pamphlet US20100025976A1 describes an occupant restraint device. This in turn comprises a housing in which a drum is arranged, on which two cords are wound.

A seat belt arrangement in a motor vehicle is from the reference DE 39 39 051 A1 famous.

A seat belt for a vehicle seat is in the reference US5476309A described.

Against this background, it was an object to adequately secure a person in a seat of a vehicle.

This object is achieved by a restraining device having the features of independent patent claim 1 . Embodiments of the restraint device emerge from the dependent patent claims.

The restraint device according to the invention is designed for a seat, usually for a seat of a vehicle, and has at least one embodiment of an e.g. curved bracket, which has a plurality of flexible, e.g. elastic elements and rigid elements, which are arranged alternately one behind the other along the bracket. wherein the bracket has a first upper end and a second lower end, the first upper end being connectable or to be connected to a stationary component in an interior of the vehicle, e.g. to a backrest of the seat, wherein the, e.g The bracket that can be connected to the backrest is designed or configured to at least partially and/or partially enclose a shoulder and an upper body of a person sitting on the seat, the bracket and the backrest enclosing an area in which at least part of the upper body is located the person is located. In addition to the at least one bracket, the restraint device has at least one forward displacement device with which the at least one bracket can be connected, to be connected or is connected, e.g. can be attached to it, to be secured or is attached, the at least one bracket having the at least one forward displacement device with the stationary component, e.g. the seat, e.g Permit movement of a or the upper end of the at least one bracket relative to a seat bottom and / or the backrest of the seat. The at least one forward displacement device has a kinematic lever with a first end and a second end and a return spring, wherein the first end of the kinematic lever can be connected or connected to the first end of the at least one bracket. to be connected or connected, the second end of the kinematic lever being connectable or to be connected or connected to the seat as a stationary component, e.g. the backrest of the seat, usually being rotatable about an axis on the seat. is arranged. A first end of the return spring can be arranged, is or is arranged on a section along the kinematic lever between its two ends so as to be rotatable about an axis, with a second end of the return spring being connectable or to be connected or connected to the seat, e.g. the backrest of the seat . The kinematic lever and the return spring are designed to allow a movement of the upper first end of the at least one bracket relative to the seat surface and/or the backrest of the seat.

In this bracket, at least one flexible element can be designed as an elastic element, for example an elastically deformable element. Alternatively or additionally, it is possible for the at least one flexible element to be in the form of a mechanical joint, for example.

In one embodiment, a flexible element is arranged between two adjacent rigid elements. Correspondingly, a rigid element is arranged between two adjacently arranged flexible elements. Due to the flexibility or deformability of a respective flexible element between two respectively adjacently arranged rigid elements, it is possible that these two adjacently arranged rigid elements can be moved, for example pivoted, relative to one another. Such a relative mobility of two rigid elements arranged next to one another is possible independently of a specific configuration of the flexible element located between them, which can be designed as an elastic element or mechanical element, for example a joint or joint element.

It is provided for the bracket that the or its upper first end can usually be fastened or fastened directly to an upper edge of the backrest of the seat as a stationary component and can therefore be directly connected or connected or connected.

In addition, the upper first end of the bracket can usually be indirectly fastened or fastened to the backrest of the seat, for example the upper edge of the backrest, via a forward displacement device and thus indirectly connectable or connected.

The upper first end of the bracket is usually designed as a stiff or rigid element, regardless of whether this first end and thus the bracket is connected directly or indirectly to the seat. Correspondingly, the bracket can also have a rigid element at the second lower end, so that both ends of the bracket have rigid elements and/or are designed as rigid elements. For example, if the bracket has a number of n rigid elements, it has n-1 flexible elements correspondingly.

Since the bracket has both rigid and flexible elements, the freedom of movement of the person to be secured on the seat is increased compared to conventional brackets.

In one embodiment, the bracket is curved and has two sections each consisting of a plurality of flexible or movable, for example elastic, elements and rigid elements arranged alternately one behind the other, with the two sections being connected to one another by a transition area. A first section extends between the first end and the transition region and is largely arcuate and configured to at least sectionally and/or partially enclose the shoulder. A second portion extends between the transition area and the second end and is largely straight and configured to at least partially and/or partially enclose the upper body. The transition area between the two sections has at least one element, i. H. at least one movable, e.g. elastic element and/or at least one rigid element, and is largely arc-shaped and configured to enclose the shoulder and the upper body in sections and/or in part. Typically, a rigid member between two flexible members has an elongate body with a central axis that is straight. Accordingly, the cross section of this body can be largely quadrangular, for example rectangular, and optionally have rounded corners. Alternatively or additionally, it is also possible for a rigid element to be curved or to have a curved cross section.

In a possible embodiment, each bracket has at least one bend, at least in the transition area, usually a bend that is also provided when all the flexible elements are movable. The flexibility of a flexible element in each case is so great that the bracket can adapt itself simply by enclosing the body of a respective person or a dummy. Furthermore, it is possible that a bracket can be adjusted for different people who use the seat alternately the at least one bend and thus a corresponding shape of the bracket can be individually adapted for a respective person. Furthermore, it is conceivable in this context that rigid elements can be of different lengths. Furthermore, it is conceivable for different flexible elements to have different degrees or degrees of flexibility, with the flexibility of the flexible elements in different sections of the bracket being able to vary in size or size depending on the definition. The at least one bend can result, for example, from the fact that the flexible elements are very flexible and the at least one bend therefore only arises when the bracket is placed against the body of the person or the dummy. Furthermore, it is also conceivable that the flexible elements have a medium stiffness and z. B. can be designed as hard rubber elements and / or that the rigid elements are of different lengths and thus form and / or depict a basic shape of the bracket. Such a basic form of elastic and rigid elements can be designed in such a way that it fits 5% to 95% of all persons or dummies, ie can be adapted to them.

The bracket, for example the restraint bracket, is designed as a seat belt system on a vehicle seat, which is fastened to the stationary component, which is usually designed as a seat, for example in the event of a deceleration of the vehicle, for example in the event of a frontal collision.

In one embodiment, the restraint device has two brackets, each for one shoulder of the person and two forward displacement devices, one bracket being movably connectable via a forward displacement device to the seat as a stationary component or to another stationary component in the interior, e.g. a floor or a support part in the interior , to connect or is connected.

In one configuration of the restraint device, the at least one forward displacement device has a flexible connecting part that is integrated into the backrest of the seat as a stationary component and connects a first upper section of the backrest and a second lower section of the backrest, so that the backrest connects the two Having sections and the flexible connecting part. The at least one bracket, i. H. its first end can be connected or is to be connected or is connected, e.g. can be fastened, to be fastened or fastened to the first section, with the at least one flexible connecting part and possibly also the first upper section of the backrest being the at least one forward displacement device is or are designed to allow the movement of the upper first end of the at least one bracket relative to the seat bottom and/or the second lower section of the backrest of the seat.

Furthermore, in one configuration of the restraint device, the at least one forward displacement device has a flexible, limp, elongated connecting element, e.g. a band or a cable, with a first end and a second end and a pulling mechanism, e.g. a winding mechanism and/or a tightening mechanism , for the flexible, elongated connecting element. The first end of the limp, elongate connecting element can be connected or is to be connected or is connected to the first end of the at least one bracket, with the second end of the limp, elongate connecting element being arranged in the pulling mechanism, with the pulling mechanism, for example a roll-up and/or tightening mechanism, with the seat as a stationary component, e.g. the backrest of the seat, connectable or to be connected and/or connected to another stationary component in the interior of the vehicle and configured to pull the limp, elongated connecting element, to wind up, roll up or roll up and/or tighten, wherein the limp, elongate connecting element, when it is usually unrolled from a shaft of the pulling mechanism or rolled up or wound up on the shaft, is designed to cause a movement of the upper first end of the at least a bracket relative to the seat and/or the backrest Allow e of the seat, wherein the connecting element is tightened by the tension mechanism in each case.

The restraint device is designed for a seat of a motor vehicle, for example a car, and generally has two brackets and two forward displacement devices, with one bracket each being assigned to a forward displacement device. However, it is also possible for the restraint device to have two brackets and only one forward displacement device, the two brackets being connected to one another via an additional part which connects their first upper ends. Correspondingly, both brackets are connected to one forward displacement device, for example via the additional part.

Further advantages and refinements of the invention result from the description and the accompanying drawings.

It goes without saying that the features mentioned above and those to be explained below not only in the combination specified in each case, but also in other combinations NEN or can be used alone without departing from the scope of the present invention.

• 1 zeigt in schematischer Darstellung eine erste Ausführungsform einer Rückhalteeinrichtung, die zwei erste Ausführungsformen eines Bügels aufweist.
• 2 zeigt in schematischer Darstellung eine zweite Ausführungsform einer Rückhalteeinrichtung, die zwei zweite Ausführungsformen eines Bügels aufweist.
• 3 zeigt in schematischer Darstellung eine Ausführungsform der erfindungsgemäßen Rückhalteeinrichtung, die zwei dritte Ausführungsformen eines Bügels aufweist.
• 4 zeigt in schematischer Darstellung eine weitere Ausführungsform einer Rückhalteeinrichtung, die zwei vierte Ausführungsformen eines Bügels aufweist.

The invention is shown schematically on the basis of embodiments in the drawings and is described schematically and in detail with reference to the drawings.

• 1 shows a schematic representation of a first embodiment of a restraint device, which has two first embodiments of a clip.
• 2 shows a schematic representation of a second embodiment of a restraint device, which has two second embodiments of a clip.
• 3 shows a schematic representation of an embodiment of the restraint device according to the invention, which has two third embodiments of a bracket.
• 4 shows a schematic representation of a further embodiment of a restraint device which has two fourth embodiments of a bracket.

The figures are described in a coherent and comprehensive manner, and the same reference numerals are assigned to the same components.

In the 1 shown first embodiment of the restraint device 2 is designed to secure a person 4 on a seat of a vehicle, with this seat in 1 a backrest 6 is shown. This first embodiment of the restraint device 2 has two first embodiments of the bracket 8, only one such bracket 8 being shown here.

The second embodiment of the restraint device 12 is in the 2a and 2 B each shown schematically in two different operating states. This second embodiment of the restraint device 12 has two second embodiments of the bracket 14, only one of which is shown here. In addition, the second embodiment of the restraint device 12 has a configuration of a forward displacement device 16, which is also integrated here into a seat, here into a backrest 18 of the seat, the backrest 18 having a first upper section 20 and a second upper section 20 and a second lower section 22, which are connected to one another here via a flexible connecting part 24, with at least the upper section of the backrest 18 and the flexible or movable connecting part 24 also being embodied here as components of the forward displacement device 16 of the second embodiment of the restraint device 12. Depending on the definition, it is also possible for the second lower section 22 of the backrest 18 to be designed as a component of this forward displacement device 16 . The second embodiment of the restraint device 12 is also designed to secure a person 4 on the seat, here on the backrest 18 of the seat.

In the 3 The embodiment of the restraint device 28 according to the invention shown schematically has two second embodiments of the third bracket 30 and one embodiment of a forward displacement device 32 . 3 also shows a backrest 34 of a seat of a vehicle. The two brackets 30 and the two forward displacement devices 32 of the restraint device 28 are designed to secure a person 4 to the seat.

In the 4 The further embodiment of the restraint device 36 shown schematically comprises two fourth embodiments of the bracket 38 and two variants of a forward displacement device 40. This restraint device 36 with the two brackets 38 and the two forward displacement devices 40 is also designed to secure a person 4 to a backrest 42 of a vehicle .

All of the embodiments of the brackets 8, 14, 30, 38 shown here for all of the embodiments of the restraint devices 2, 12, 28, 36 have a plurality of flexible elements and rigid elements 52, 54, 56, 58 that run along the bracket 8, 14, 30 , 38 are arranged alternately one behind the other, the bracket 8, 14, 30, 38 having a first upper end and a second lower end, with a rigid element 52, 54, 56, 58 being arranged at each end, the first upper end For example, with the backrest 6, 18, 34, 42 of the respective seat can be connected or to be connected, wherein the bracket 8, 14, 30, 38 is designed or configured to a shoulder and an upper body of the person sitting on the seat 4 to enclose at least in sections and/or partially and thus to secure the person 4 to the seat.

At the first in 1 In the embodiment of the restraint device 2 shown, the upper first ends of the two brackets 8 are usually attached directly to an upper edge of the backrest 6 of the seat and the person 4 is thus secured to the seat 6 .

In the second embodiment of the restraint device 12 from 2 are the flexible connecting part 24 and the first upper portion 20 of the forward displacement device 16 integrated into the backrest 18 and connected to the second lower portion 22 of the backrest 18 so that the Backrest 18 has the two sections 20, 22 and the flexible connecting part 24. The two brackets 14 are connected to the first portion 20, here attached to it. The flexible connector 24 and the first upper portion 20 of the backrest 18 and/or the forward displacement device 16 are configured to allow movement of the upper first ends of the brackets 14 relative to a seat bottom and/or the second lower portion 22 of the backrest 18 of the seat .

Here shows 2a the restraint device 12 in the first state, the two sections 20, 22 of the backrest 18 here being arranged largely parallel to one another, which in this case means that longitudinal axes which run through the two sections 20, 22 are arranged parallel to one another. the inside 2 B The second state shown of the restraint device 12 results, for example, in the event that the vehicle in which the seat on which the person 4 is sitting is installed is decelerated or braked while driving. This results in the person 4 being moved forward due to inertia. In this case, the two sections 20, 22 of the backrest 18 are moved relative to one another via the flexible connecting part 24, with the first upper section 20 being pivoted relative to the second lower section 22 forwards. Also in this second embodiment of the restraint device 12, the person 4 is based on the two 2a and 2 B shown operating states secured on the restraint device 12 on the seat.

At the in 3 In the embodiment of the restraint device 28 shown, each forward displacement device 32 has a kinematic lever 60 with a first end 62 and a second end 64 and a return spring 66, the first end 62 of the kinematic lever 60 being connected to the first end of a bracket 30. The second end 64 of the kinematic lever 60 is firmly connected here to the backrest 38 of the seat and is arranged on the backrest 34 such that it can rotate about an axis. A first end 68 of the return spring 66 is arranged on a section along the kinematic lever 60 between its two ends 62, 64 so as to be rotatable about an axis on the kinematic lever 60. A second end 70 of the return spring 66 is also arranged or fastened on the backrest 34 of the seat so as to be rotatable about an axis on the backrest 34 . The kinematic lever 60 and the return spring 66 are configured to allow movement of the upper first end of the bracket 30 relative to the seat bottom and/or the backrest 34 of the seat.

It also shows 3 the third embodiment of the restraint device 28 in a state when the vehicle in which the seat with the backrest 34 is installed, on which the person 4 sits, is decelerated during driving, the person 4 due to inertia relative to the backrest 34 is moved forward. In this case, the return spring 66 is stretched and the bracket 28, which is attached to the backrest 34 via the kinematic lever 60, is pivoted forward with the kinematic lever 60, pivoting of the kinematic lever 60 and thus pivoting of the bracket 28 and thus pivoting or movement of the person 4 relative to the backrest 34 is braked due to the expanding return spring 66 . If the vehicle should be driving at a largely constant speed, it is provided that the return spring 66 is retracted and the kinematics lever 60 is thus also pivoted backwards about the axis on the backrest 34, with a longitudinal axis of the kinematics lever 60 being largely parallel to a longitudinal axis of the backrest 34 is arranged. In this case, the first end of the bracket 28 and the first end 62 of the kinematic lever 60 are arranged largely above the backrest 34, with the person 4 touching the backrest 34 with their back.

In the case of 4 shown further embodiment of the restraint device 36, the forward displacement device 40 has, as a flexible, limp, elongate connecting element, a band 72 with a first end 74 and a second end and a pulling mechanism 78 for the band 72, designed or to be designated here as a rolling mechanism and/or tightening mechanism. the first end 74 of the strap 72 being connected to the first end of the shackle 38, the second end of the strap 72 being disposed within the tension mechanism 78 and at least partially wound around a shaft of the tension mechanism 78, the tension mechanism 78 connected and secured to the seat, here the seat back 78, and configured to pull, e.g., roll up and/or tighten, the strap 72, the strap 72, when typically released from the shaft of the pulling mechanism 78 or rolled up on the shaft, is designed to prevent a movement of the allow upper first end of the bracket 38 relative to the seat bottom and / or the backrest 42 of the seat.

During normal driving of a vehicle in which the seat and the fourth embodiment of the restraint device 36 are arranged, the person 4 usually sits upright and touches the backrest 42 with their back moved forward relative to the backrest 42 . This case is based on 4 shown schematically. When driving at a largely constant speed, the band is 72 largely coiled on the shaft of the traction mechanism 78. When the vehicle brakes, the bracket 38 is also moved forward with the person 4 . In doing so, the first end of the bracket 38 pulls the strap 72 attached thereto out of the pulling mechanism 78, with the strap 72 being unwound from the shaft of the pulling mechanism 78. In this case, too, the person 4 is secured to the seat via the bracket 38 .

All of the presented restraint devices 2, 12, 28, 36 and the respective embodiments of the brackets 8, 14, 30, 38 are intended for a vehicle designed as a motor vehicle, with the brackets 8, 14, 30, 38 also being used as restraint brackets 8, 14 , 30, 38 are formed and/or can be designated. In all of the embodiments of the brackets 8, 14, 30, 38, the person 4 seated on the seat can rest flat against the backrest 6, 18, 34, 42 of the seat, even with different body proportions. It is possible for a respective bracket 8, 14, 30, 38 to have both flexible elements 44, 46, 48, 50 and rigid elements 52, 54, 56, 58, which connect the respective bracket 8, 14, 30, 38 adjust to a body proportion of the person 4, which is independent of a size and / or stature of the person 4. An adaptation of the shape of the bracket 8, 14, 30, 38 is also possible if the person should have a large bust size or a beer belly, for example. Due to its flexible deformability, the restraint bar 8, 14, 30, 38 can be used in the automotive environment, it being possible to adapt it to different body proportions of persons 4 and thus to the occupants of the vehicle. By providing at least one forward displacement device 16, 32, 40, which interacts with at least one bracket 14, 30, 38, when the vehicle brakes, the bracket 14, 30, 38 and the person to be secured with it are displaced forward relative to the backrest 18 , 34, 42 possible. It is thus possible, particularly in the event of an accident, for the person 4 to dive into an airbag arranged in front of him, for example.

Reference List

2

restraint device

4

person

6

backrest

8th

hanger

12

restraint device

14

hanger

16

predisplacement device

18

backrest

20, 22

section

24

connection part

28

restraint device

30

hanger

32

predisplacement device

34

backrest

36

restraint device

38

hanger

40

predisplacement device

42

backrest

44, 46, 48, 50

flexible item

52, 54, 56, 58

rigid element

60

kinematic lever

62, 64

end

66

return spring

68, 70

end

72

tape

74

end

78

pulling mechanism

Claims (5)

Seat restraint device comprising two brackets (30) and two advancement means (32), each bracket (30) comprising a plurality of flexible elements (48) and rigid elements (56) arranged alternately in series along the respective bracket (30). each strap (30) having a first end and a second end, the first upper end being connected to a stationary member, each strap (30) being adapted to support a shoulder and a torso of a seat occupant (4) to enclose at least in sections, with a respective forward displacement device (32) being connected to a respective bracket (30), the respective bracket (30) being connected to the stationary component via the respective forward displacement device (32), the respective forward displacement device (32) is adapted to allow movement of an upper end of the bracket (30) relative to a backrest (18, 28) of the seat, each V The displacement device (32) has a kinematic lever (60) with a first end (62) and a second end (64) and a return spring (66), the first end (62) of the kinematic lever (60) being connected to the first end of the respective bracket (30) can be connected, wherein the second end (64) of the kinematic lever (60) with the Seat can be connected, with a first end (68) of the return spring (66) being able to be arranged on a section along the kinematic lever (60) between its two ends (62, 64), with a second end (70) of the return spring (66) on can be arranged on the seat, the kinematic lever (60) and the return spring (66) being designed to permit a movement of the upper first end of the respective bracket (30) relative to the seat. restraint device claim 1 , in which at least one further forward displacement device (16) has a flexible connecting part (24) which is integrated into the backrest (18) and has a first upper section (20) of the backrest (18) and a second lower section (22) of the backrest (18), wherein at least one bracket (14) can be connected to the first section (20), wherein the at least one flexible connecting part (24) and the at least one forward displacement device (16) are designed to limit the movement of the upper first end of the allow at least one bracket (14) relative to a seat surface of the seat. restraint device claim 1 or 2 , in which at least one further forward displacement device (40) has a limp connecting element with a first end (74) and a second end and a winding mechanism (78) for the limp connecting element, the first end (74) of the limp connecting element having the first end of the at least one shackle (38), wherein the second end of the limp link is disposed within the retractor mechanism (78), the retractor mechanism (78) being connectable to the stationary member and configured to pull the limp link, wherein the the limp connecting element, when unwound or rolled up from a shaft of the winding mechanism (78), is adapted to permit movement of the upper first end of the at least one bracket (38) relative to the stationary component. Restraint device according to one of the preceding claims for a seat of a motor vehicle. Restraint device according to one of the preceding claims, in which the first end of the respective bracket (30) can be connected directly to an upper edge of a backrest (6) of the seat as a stationary component.

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