WO2014086444A1

WO2014086444A1 - Belt buckle presenter for a vehicle

Info

Publication number: WO2014086444A1
Application number: PCT/EP2013/003203
Authority: WO
Inventors: Jürgen Warwel
Original assignee: Daimler Ag
Priority date: 2012-12-05
Filing date: 2013-10-24
Publication date: 2014-06-12
Also published as: DE102012023825A1

Abstract

The invention relates to a belt buckle presenter for a vehicle, which comprises a drive unit coupled to an adjustment mechanism, by means of which a belt buckle is moveable at least between an operating position and a presentation position, and a blocking device by means of which a movement of the belt buckle can be blocked. According to the invention, the belt buckle is blockable at least in the operating position thereof by means of the blocking device in such a manner that a tensile force acting on the belt buckle acts on the blocking device in a manner decoupled from the adjustment mechanism.

Description

Seat belt buckle for a vehicle

The invention relates to a buckle presenter for a vehicle, which comprises a drive unit coupled to an adjustment mechanism, by means of which a buckle is movable at least between an operating position and a Bringstellung, and a blocking device by means of which a movement of the buckle is blockable.

From DE 10 2011 01 1 778 A1, a belt buckle is known. Of the

Gurtschlossbringer includes a buckle, a flexible power transmission element which is fixedly coupled to the buckle and in the case of restraint receives the belt force, a guide for the power transmission element and a movable

Positioning device, which is designed so that they

Power transmission element supports outside the guide and moves the buckle in a receiving position. The positioning device has a profiled

Surface geometry, in which a drive element engages positively, wherein a movement of the drive element moves the positioning device and thereby the buckle and the power transmission element from a starting position in the receiving position.

The invention has for its object to provide a comparison with the prior art improved belt buckle for a vehicle.

The object is achieved by the features specified in claim 1.

Advantageous embodiments of the invention are the subject of the dependent claims. A buckle presenter for a vehicle comprises a drive unit coupled to an adjustment mechanism, by means of which a buckle is movable at least between an operating position and a carry position, and a blocking device by means of which a movement of the buckle can be blocked. According to the invention, the buckle can be locked by means of the blocking device, at least in its operating position, such that a tensile force acting on the buckle decouples from the adjusting mechanism on the blocking device.

Because the acting tensile force decoupled from the adjusting mechanism acts exclusively on the blocking device, damage to components of the adjusting mechanism due to the tensile forces acting as far as possible

locked out. Thus, the operability of the adjustment mechanism and also the drive unit after completion of the action of the tensile force can be substantially ensured.

The blocking device is designed in such a way that the tensile forces can be absorbed without the components being plastically deformed and / or destroyed. In this case, the blocking device has such dimensions that it can be arranged in a comparatively small available space in the vehicle. Thus, it is possible to arrange the blocking device both in the front seat area and in the rear seat area.

Embodiments of the invention are explained in more detail below with reference to drawings.

Showing:

Fig. 1 is a schematic perspective view of an exploded view of a

Locking device for a buckle of a vehicle and components of an adjustment mechanism,

Fig. 2 shows schematically a guide element with blocking elements in one

Unblocking position,

Fig. 3 shows schematically the guide element with the blocking elements in one

Blocking position, 4 shows schematically the blocking device in the non-blocking position,

Fig. 5 shows schematically a sectional view of the blocking device in the

Blocking position,

Fig. 6 shows schematically a first sectional view of the blocking device in

Blocking by means of a safety spring element and

Fig. 7 shows schematically a second sectional view of the blocking device in

Blocking by means of the safety spring element.

Corresponding parts are provided in all figures with the same reference numerals.

Figure 1 shows a perspective view of an exploded view of a

Locking device for a buckle of a vehicle and components of an adjustment mechanism.

The belt buckle has a buckle, not shown, which is movable by means of the adjusting mechanism, not shown, between an operating position and a Bringstellung.

The drive unit is formed for example as an electric motor, which is coupled via a gear, not shown, with a spindle 1, on which a driver 2 is located, which is indirectly connected to the buckle.

If the electric motor is activated, its rotational movement is transmitted via the gear to the spindle 1, as a result of which the driver 2 moves along the spindle 1.

If the driver 2 coupled to the belt lock is located at a lower end of the spindle 1, then the belt lock is in the operating position. The operating position is the position that the buckle before the activation of

Gurtschlossbringers and after applying a safety belt, that has after inserting the Gurtschlosszunge in the buckle or occupies. The spindle 1 and arranged on the same driver 2 and a guide rail 3 are components of the adjustment, in particular, the guide rail 3 is also part of the blocking device.

The blocking device has the guide rail 3, one with the driver. 2

connected housing 4 with a housing associated cover member 5, a guide member 6 and two by means of two spring elements 7, 8 arranged together blocking elements. 9

The guide rail 3 is formed as a profile element and has in cross-section substantially a U-shape, wherein the guide rail 3 in the vehicle with its longitudinal axis in this embodiment largely parallel to

Vehicle vertical axis is arranged. In other embodiments, the

Guide rail 3 may be arranged in the vehicle in a different manner, for example, in a predetermined angle between the vehicle height and the vehicle longitudinal axis. In the arrangement, the function of the guide rail for positioning the

Belt buckle to consider. In a middle part 3.1 of the guide rail 3, at least one with respect to the width of the central part 3.1 central through hole 3.2 is introduced, which is the implementation of a connecting element, in particular a screw, so that the guide rail 3 in the vehicle interior can be fastened. At the middle part 3.1 projecting legs 3.3 are formed to form the U-shape, which have along the longitudinal axis of the guide rail 3 and thus also the legs 3.3 recesses A, which are opposite. In the present

Embodiment according to Figure 1, each leg has three recesses A, which are arranged at regular intervals to each other, the number may vary.

As described above, the driver 2 is connected to the housing 4, wherein the driver 2 and the housing 4 may be formed as a molded part. Of the

Driver 2 is arranged on the spindle 1, including the driver 2 a

Through hole 2.1 has a thread. Between driver 2 and housing 4, an incision E is formed, which serves for the arrangement of the driver 2 with housing 4 on the guide rail 3, wherein the spindle 1 outside the

Guide rail 3 is located. For this purpose, this incision E corresponds to one

Leg 3.3 of the guide rail 3, so that the driver 2 can be pushed onto this leg 3.3. In an alternative embodiment of the Gurtschlossbringers the components of the adjustment mechanism and the blocking device may be formed such that the spindle 1 extends within the guide rail 3, wherein the longitudinal axes parallel to each other. This alternative embodiment is shown in more detail in Figures 4 to 7.

The housing 4 has dimensions that correspond to a space between the middle part 3.1 and legs 3.3 of the guide rail 3, wherein the housing 4 is slidably disposed within the guide rail 3. In the housing 4 is the

Guide element 6 arranged in sections. At one end of the

Guide element 6 is a Seilkausche 6.1 formed in which, for example, designed as a wire power transmission element force, shape and / or

is fastened cohesively. In particular, the wire rope with the Seilkausche 6.1 is compressible. An opposite end 6.2 of the guide element has in

Essentially the shape of a fork or open-end wrench, with above the fork receptacles N for the arrangement of the blocking elements 9 are formed. The lower opposite end 6.2, d. H. the section where the fork is

is formed, is an example of three juxtaposed and fastened

Sheet 6.3, 6.4 formed, wherein the two outer sheets 6.3 in the direction of

Seilkausche 6.1 are shorter than the middle plate 6.4, on which the

Seilkausche 6.1 is arranged or formed. The rope thimble 6.1, the outer plates 6.3 and the middle plate 6.4 can also be configured in one piece, for example to allow a cheaper production.

In the assembled state, the two blocking elements 9 are arranged in the respective receptacle N, with a first shown in detail in Figure 2 first

Spring element 7 from which a blocking element 9 extends over an outer metal sheet 6.3 to the other blocking element 9. The blocking elements 9 are pivotally connected to the first spring element 7. The blocking elements 9 each have a first material recesses 9.1 for limiting a pivoting movement, within which a movement of the first spring element 7 is possible.

A second spring element 8 also connects the two blocking elements 9

with each other, wherein the second spring element 8 is mounted in an upper region of the respective blocking element 9. The guide element 6 is arranged in sections in the housing 4, wherein the projecting portions, ie the bifurcation of the opposite end 6.2 with second material recesses 4.1 in the housing 4 correspond.

Is the guide member 6 disposed within the housing 4, the

Cover member 5 is placed on the housing 4, and preferably permanently connected thereto so that the housing 4 is largely closed, and the cover member 5 and the housing 4 form a coherent overall housing.

Figure 2 shows a partial sectional view of the guide member 6 and the means of the two spring elements 7, 8 arranged together blocking elements 9 and the cover member 5 of the housing 4. The first spring element 7 is biased in the illustrated position only to the extent that the two blocking elements 9 on the

Abut guide element 6. The second spring element 8 is biased in this position of the blocking elements 9, wherein the spring forces of the two spring elements 7, 8 act against each other.

This position of the blocking elements 9 is a Nichtbtockierstellung, as shown in Figure 4 in more detail.

In the non-blocking position according to Figure 2, the first spring element 7 with its central portion 7.1 to an upper edge of the outer plate 6.3 of

Guiding element 6 spaced, wherein the cover member 5 contacted with this central portion 7.1, without exerting a force on the first spring element 7.

In Figure 3, the guide element 6, the lid member 5 and the blocking elements 9 are shown in a blocking position.

By a relative movement between the fixed to the housing 4 lid member 5 and the guide member 6 as a bearing for the means of

Spring elements 7, 8 arranged adjacent blocking elements 9 exercises at least the cover element 5 or the cover element 5 and the housing 4 formed

Overall housing a force on the central portion 7.1 of the first spring element 7 from. As a result, the sections of the first spring element 7 connected to the blocking elements 9 are pressed apart, as a result of which the blocking elements 9 arranged in the receptacles N pivot away from the guide element 6 and the blocking position is assumed. Figure 4 shows a sectional view of the blocking device shortly before taking the operating position.

In order to lock the movable by means of Gurtschloßbringers buckle, in particular in the operating position, the blocking device is provided.

The buckle, which is indirectly connected to the driver 2 of the adjusting mechanism and thus to the guide member 6 of the blocking device moves to insert the Gurtschlosszunge in the buckle of the operating position as the starting position in the Bringstellung. From there it moves back to the operating position.

The two projecting portions of the guide element 6 on the

opposite end 6.2 are in the first material recesses 4.1 of

Housing 4 arranged and protrude by a predetermined distance from this. As a result, these projecting portions contact first with a stop element, not shown, for example, the vehicle floor. The housing 4 with the

Cover element 5 moves by means of the adjusting mechanism in the direction

Stopper element, so that the cover element 5 presses on the first spring element 7, so that the blocking elements 9, as described above, are pressed outwards. Since the housing 4 and the guide element 6 are arranged within the guide rail 3, the blocking elements 9 are in the lowest recesses A of

Guide rail 3 is pressed so that the guide member 6 is locked with the fastened to this belt buckle in the operating position. The locking takes place by means of the engaging in the recesses A blocking elements 9. The blocking position is shown in more detail with reference to a sectional view in Figure 5.

To cancel the blocking position, the housing 4 moves upon activation of the adjusting mechanism in the direction of Bringstellung whereby the cover element 5 is spaced from the first spring element 7 and the first spring element 7 relaxes, so that the blocking elements 9 are pivoted in the direction of the guide member 6 and again abut this.

Acts during the procedure of the buckle of the operating position in the

Bringstellung or vice versa a tensile force on the buckle, which exceeds a predetermined value, so in turn results in a relative movement between the

Guide element 6 and the housing 4, that is, the cover element 5. This is a Force exerted on the first spring element 7, so that the blocking elements 9 pivot outwardly into one of the recesses A or on an inner surface of the

Slide guide rail 3 until reaching the next recess A and then engage in the recess A. As a result, the buckle is lockable in as far as possible any intermediate position.

If the acting tensile force is released, the blocking elements 9 pivot in the direction of the guide element 6, so that the guide element 6 freely within the guide rail 3 according to the predetermined travel direction of

Adjusting mechanism can move.

If the first spring element 7 is inoperative, for example because it is broken, then the second spring element 8 essentially performs the function at least for locking the belt buckle in the operating position.

As described above, the second spring element 8 is biased in the operating position, wherein cancel the spring force of the functional first spring element 7 and the spring force of the functional second spring element 8 in the non-blocking position as far as possible.

Since the first spring element 7 does not apply a spring force, the two

Blocking elements 9 pivoted by the spring action of the second spring element 8 to the outside, regardless of the position in which the guide element 6 is located within the guide rail 3.

If the first spring element 7 is still functional when the bridging position is reached and then becomes inoperable, then the blocking elements 9 are due to the

prestressed second spring element 8 pivoted outward, as shown in Figure 6. When moving into the operating position, the blocking elements 9 engage in succession in each recess A of the guide rail 3, as shown in FIG. The

Blocking elements 9 are due to the continuously biased second

Spring element 8 continuously on the guide rail 3. Characterized in that the blocking elements 9 are formed rounded at their the recesses A side facing, is a method of the buckle of the Bringstellung in the

Operating position essentially unhindered possible. Is the buckle and thus also the guide member 6 in the

Operating position, the guide member 6 and thus the driver 2 is locked by the engagement of the blocking elements 9 in the lowest recesses A. Due to the shape of the blocking elements 9, it is not possible when the first spring element 7 is inoperative that the belt buckle can then be positioned again in the carrying position.

In such a buckle Bringer the adjustment mechanism of a

Power absorbed decoupled when acting on the buckle tensile force, so that the components of the adjustment mechanism are not stressed by the acting tensile force and thus a function of the adjustment mechanism can be substantially permanently ensured.

By means of the blocking device formed in this way, it is possible to lock the buckle in intermediate positions when acting on this tensile force, so that a

Vehicle occupant no additional Vorverlagerungsweg is provided by the buckle moves due to the tensile force acting in the Bringstellung.

The Gurtschlossbringer with the adjustment mechanism and the blocking device is compressed in terms of its required space requirements to the smallest possible dimensions, so that a trained Gurtschloßbringer modular for all vehicle types for driver's seat, passenger seat and seats in the rear area of a vehicle is used.

Claims

claims

1. A belt buckle for a vehicle, comprising one with a

Adjustment mechanism coupled drive unit, by means of a buckle at least between an operating position and a Bringstellung is movable, and a blocking device by means of which a movement of the buckle is blockable,

characterized in that the buckle is locked by means of the blocking device, at least in its operating position such that a force acting on the buckle tensile force decoupled from the adjusting mechanism acts on the blocking device.

2. belt lock according to claim 1,

characterized in that the blocking device comprises a guide rail (3) with symmetrically opposite longitudinally extending recesses (A), wherein a guide element (6) which is coupled to the buckle, within the guide rail (3) is movably arranged, wherein the guide element (6) by means of at least one

Spring element (7, 8) blocking elements (9) are arranged and the at least one spring element (7, 8) during a movement of a housing (4) of the

Blocking device relative to the guide element (6) is biased such that the blocking elements (9) for locking the buckle in the

Recesses (A) of the guide rail (3) engage.

3. Gurtschlossbringer according to claim 2,

characterized in that the buckle is arranged on the guide element (6).

4. Gurtschlossbringer according to claim 2 or 3,

characterized in that a second spring element (8) is provided, by means of which the blocking elements (9) at Nichtfunktionsfähig speed of a first

Spring element (7) in the recesses (A) of the guide rail (3) can be arranged, so that the buckle in its position can be locked.