WO2008132084A1

WO2008132084A1 - Door holding device for a motor vehicle door

Info

Publication number: WO2008132084A1
Application number: PCT/EP2008/054791
Authority: WO
Inventors: Georg Scheck; Alwin Macht; Hans Ulrich Karsch; Steffen Brosius
Original assignee: Brose Fahrzeugteile Gmbh & Co. Kg, Coburg
Priority date: 2007-04-25
Filing date: 2008-04-21
Publication date: 2008-11-06
Also published as: DE102007020546A1

Abstract

The invention relates to a door holding device for a motor vehicle door, the rotational axis of which is connected to a motor vehicle body and connected to a braking device (4) integrated into the rotational axis of the motor vehicle door. A transmission gearing (3) disposed coaxially to the rotational axis of the vehicle door is connected on one side to a pivot mounting (1) of the motor vehicle door and on the other side to the braking device (4) using an acceleration and increases the rotational speed of the motor vehicle door during opening and closing by a factor of preferably (5) to 10. Preferably, the transmission gearing (3), which is embodied as a planetary gearing comprising a fixed ring gear tooth set (34) comprising planetary gears (31, 32) is connected via the pivot mounting (1), which is serving as a planetary gear bearing, and a center gear (30, 33) connected to the braking device (4) by a disc-shaped output element (5), and the braking device (4) is integrated into a hinge housing (2) by way of which the motor vehicle door is connected to the motor vehicle body.

Description

Door locking device for a motor vehicle door

description

The invention relates to a door locking device for a motor vehicle door according to the preamble of claim 1.

A door locking device for a motor vehicle door is used to the hinged to a door pillar of the vehicle body motor vehicle door to a desired

Door opening angle easy and noiseless to open in the desired

Opening position but against further independent and unintentional adjustments safely set. The arranged between the door pillar and the motor vehicle door and connected via a connecting member either with the motor vehicle door or with the door pillar door locking device can be formed as a mechanical, electro-mechanical or hydraulic device.

Many mechanical door locking devices have the disadvantage that a locking of the vehicle door is possible only in predetermined door opening angles, which is particularly associated with limited space parking conditions, sloping roads or in tight garages with movement restrictions of the user. Hydraulic and electromechanical door locking devices, however, are associated with a considerable manufacturing effort and the release force for adjusting the vehicle door of particular hydraulic door locking devices is dependent on the ambient temperature to a considerable extent.

For a stepless determination of a motor vehicle door in a desired opening angle, a braking device is used, on which an actuating torque can be adjusted, which is required for adjusting the motor vehicle door, so that the motor vehicle door with limits of inclined roadway or wind load maintains the desired door opening position and at the set actuating torque, that is, at a the actuating torque corresponding, exerted on the outside door handle or door handle operating force actuation pivoting of the vehicle door allows. For connecting the brake device to the motor vehicle door or the motor vehicle body, a toothed rack connected, for example, to the motor vehicle door and a pinion meshing with the toothed rack and connected to the braking device arranged in a housing are used as the connecting element. However, this arrangement has a considerable amount of space.

The present invention has for its object to provide a door locking device of the type mentioned with minimal space requirements and low production costs.

This task is inventively achieved with the features of claim 1.

By integrating the braking device in the axis of rotation of the motor vehicle door, the space requirement is minimized, since no space-consuming fasteners are required. In addition, the manufacturing costs are reduced because provided in the axis of rotation of the motor vehicle door functional parts of the link mechanism with synergy effect can be used simultaneously as functional elements of the braking device.

An advantageous development of the solution according to the invention is characterized by a coaxial with the axis of rotation of the motor vehicle door arranged transmission gear, on the one hand connected to the motor vehicle door and on the other hand with a translation into the fast with the braking device.

The arrangement of a transmission between the motor vehicle door and the braking device with a translation from the motor vehicle door to the fast

Brake device makes it possible, the rotational speed and thus the angle of rotation of

Motor vehicle door to increase many times, so that on the one hand a faster

Power structure for releasing and locking the braking device is achieved and the

Other the motion of the brake device is implemented in a movement of the motor vehicle door making up only a fraction of this movement play, which is characterized by a disturbing clatter of the movement in a large movement

Motor vehicle door would make noticeable.

A preferred embodiment of the invention is characterized in that the transmission gear and the braking device are integrated into a hinge, via which the motor vehicle door is articulated to the motor vehicle body.

The integration of the transmission gear and the brake device in a hinge for articulation of the motor vehicle door on a pillar of the vehicle body ensures optimum integration by using the hinge housing for the transmission gear and the braking device with the least possible space.

Preferably, the transmission gear consists of a planetary gear and this particular of a planetary gear whose Platenräder are connected to the motor vehicle door and the sun gear to the braking device.

The use of a planetary gear as a transmission gear allows a high gear ratio, while the selection of a planetary gear additionally ensures optimum integration of the transmission gear in the connection between the motor vehicle door and the braking device due to the specific design of a planetary gear.

An optimal integration of the planetary gear in the connection between the

Motor vehicle door and the braking device is achieved in that the motor vehicle door with a trained as a planet carrier pivot fitting in engages the hinge housing having a pivot axis mounted in the hinge housing and arranged coaxially to the pivot axis Planetenradzapfen which form the axis of rotation of the planetary gears whose teeth with the teeth of a connected to the hinge housing ring gear or formed in the hinge housing ring gear and with the teeth of the rotatable on the Swivel axle stored sun gear meshes.

In this embodiment, the pivot axis of the motor vehicle door serves as a guide for the sun gear and the hinge housing as a fixed ring gear, while the planetary gears are arranged coaxially to the axis of rotation of the motor vehicle door on a planet carrier, which is formed as part of the pivot fitting of the vehicle door. In this case, the sun gear is driven by the associated with the pivot fitting of the motor vehicle door planetary gears, while the integral integrated in the hinge housing or formed on the cylindrical inner surface of the hinge housing ring gear, so that when turning the vehicle door in the ring gear rolling planetary gears and thus the planet slower rotate as the driven sun gear, which rotates when opening or closing the motor vehicle door at a rotational speed which is increased by multiples, preferably five to ten times with respect to the rotational or pivoting speed of the motor vehicle door.

For optimal integration and positional fixation, the pivot axis of the motor vehicle door is rotatably mounted directly in bearing points on the top and bottom of the hinge housing.

For optimal guidance of the sun gear, the sun gear is connected to a hollow shaft, through which the pivot axis of the swivel fitting is inserted, so that the driven sun gear can be connected in a simple manner to an output element of the braking device.

For optimum connection of the transmission gear with the braking device with simultaneous integration of both functional parts in the hinge housing, the transmission gear on the one hand and the braking device on the other hand are arranged in two axially superimposed chambers of the hinge housing and the Swivel axis and surrounding the pivot axis hollow shaft of the sun gear inserted through a arranged between the chambers bearing bush.

The type and configuration of the braking device can basically be chosen arbitrarily and for example consist of a magnetic, eddy current, hydraulic, mechanical or electro-mechanical brake.

Preferably, however, the braking device is designed as a mechanical parking brake which comprises a cylindrical housing with spring element adjoining the inner wall, an output element connected to the sun gear, a device for frictionally clamping the spring element with the inner wall of the cylindrical housing with a torque acting on the output element is smaller than an operating torque, and means for releasing the tension of the spring member with the inner wall of the cylindrical housing at a force acting on the output member torque equal to or greater than the operating torque comprises.

This braking device is simple and can be produced with little effort and in the desired size. It allows a stepless determination of a desired opening angle of the vehicle door and is also easy to open and close. Due to the sole design of the functional parts of the brake device, an actuating torque can be adjusted, which is required for adjusting the vehicle door, so that the motor vehicle door, even in limited inclined roadway or wind load, the desired door opening position and at the set actuating torque, that is at a corresponding , on the outside door handle or door handle applied actuation force, is easily adjustable.

A major advantage of this braking device is the use of a mechanical friction system, its simple structure, independent of the friction coefficient of the friction release force for adjusting the vehicle door from the holding position and a simple adjustment of the friction system to the wrap during assembly and thereby requires a constant release force and drag force. Preferably, the spring element consists of a wrap spring or a spring band with angled spring ends on which two at the disk-shaped and rotatably mounted about a central output axis arranged in the cylindrical housing driven element abutment perpendicular to the plane of the driven element extending linkages pivotally mounted on the driven element levers which are coupled together and are braced against each other so that they act in the sense of widening of the wrap spring or the spring band on the angled spring ends, while the means for releasing the tension of the spring element with the inner wall of the cylindrical housing upon actuation of the output element in the sense of contraction of the wrap spring or the Spring band applies to at least one angled spring end.

Due to the design of the voltage applied to the inner wall of the cylindrical housing of the door locking spring element as a wrap or spring band with angled spring ends a fixed frictional engagement between the movable and stationary part of the brake device is ensured with appropriate bias of the spring or spring band and thus ensures an adjustable holding force of the brake device , The hinged to the output element, coupled to each other and mutually strained lever cause in the holding position of the brake device widening of the wrap spring or the spring band, while for adjusting the vehicle door, the release device at a constant adjustable release force causes a contraction of the wrap spring or spring band and thus the frictional engagement the wrap spring or the spring band on the inner wall of the brake housing or the hinge housing is reduced or canceled and allows a correspondingly easy adjustment of the vehicle door with constant driving force.

For space-saving arrangement and recording of the brake and release device depending on the arrangement of the door locking device in the region of the door pillar or in the motor vehicle door via a connecting device with the motor vehicle door or the door pillar connected output member disc-shaped and arranged to rotate about a central axis of rotation in the cylindrical housing , While the levers in the region of the periphery of the output element are pivotally connected about an axis perpendicular to the plane of the output member extending axis pivotally mounted on the output member. The mutually coupled levers are arranged with respect to the articulation of the lever on the output element first lever arms between the angled spring arms and connected with respect to the articulation of the lever on the output element second lever arms with a release spring.

The pivotable about the articulation on the output element and coupled to each other levers thus engage with their first lever arms between the angled spring ends of the wrap spring or the spring band and are due to the effective between the second lever arms release spring in the holding position on the angled spring ends in the sense of widening the wrap or of the spring band. As a result, determine the coefficient of friction between the wrap spring and the spring band and the inner wall of the hinge housing, the wrap angle of the wrap spring or the spring band, the lever ratios of the lever arms of the driven element hinged lever and the spring force of the release spring the limit or actuation torque or the release force of Braking device for setting a desired door opening angle of the vehicle door.

By various modifications of the lever and the release spring, the Grenzoder operating torque or the triggering force for detecting or adjusting the vehicle door can be adjusted so that the brake device is applicable to differently dimensioned motor vehicle doors with appropriate training and adjustment of the functional parts.

Reference to an embodiment shown in the drawing, the invention of the underlying idea and other variants and alternative embodiments of the solution according to the invention will be explained in detail. Show it:

1 shows a longitudinal section through an integrated in a hinge, with which a motor vehicle door is hinged to a pillar of the vehicle body, door locking device with a along the line I - I shown in Figure 2 cut planetary gear and a braking device ..;

Fig. 2 shows a cross section through the planetary gear and

Fig. 3 shows a cross section through the braking device. The longitudinal section through the door locking device according to the invention shown schematically in Fig. 1 shows a part of the pivot fitting 1 a motor vehicle door having a vertical pivot axis 10 which forms the axis of rotation about which the motor vehicle door is pivotable. A fixedly connected to the vehicle body hinge housing 2 has a cylindrical cross section with a cylinder wall opening 20, define the circumferential ends of the pivot angle of the vehicle door. The pivot axis 10 of the pivot fitting 1 of the motor vehicle door is mounted in a blind hole 22 at the top of the hinge housing 2 and a bore 23 on the underside of the hinge housing 2. A horizontal partition wall 21 divides the interior of the hinge housing 2 into an upper and lower chamber and simultaneously forms a bearing bush 24, through which the pivot axis 10 of the pivot fitting 1 is inserted.

From the bottom of the pivot fitting 1 are perpendicular three Planetenradzapfen 1 1, 12, 13 (Fig. 2) from, are attached to the three planet gears 31, 32, 33 of a planetary gear 3, which are rotatable about the Planetenradzapfen 1 1, 12, 13 , The planet gears 31, 32, 33 mesh with a formed on the inner surface of the hinge housing 2 ring gear 34 and with a sun gear 30 which is rotatably attached to the pivot axis 10 relative to the pivot axis 10 of the pivot fitting 1 of the motor vehicle door. The sun gear 30 is connected to a hollow shaft 35 or formed as part of a hollow shaft 35 which is inserted through the bearing bush 24 of the horizontal partition wall 21 and connected to a disk-shaped output element 5 of the braking device 4.

Of course, in a modification of the planetary gear shown in Fig. 2 in cross section with three planetary gears and a planetary gear with two planetary gears are used, so that the longitudinal section shown in Fig. 1 by the door locking device would show a section through the planetary gear in the region of the two planetary gears.

Upon pivoting of the motor vehicle door about the pivot axis 10, the planetary pin 1 1, 12, 13 projecting from the pivot fitting 1 are rotated about the pivot axis 10, so that the rotatable on the Planetenradzapfen 1 1, 12, 13 stored planetary gears 31, 32, 33 roll on the fixed, formed on the inner wall of the hinge housing 2 ring gear 34 and at the same time by their gear engagement in the sun gear 30, the sun gear 30 rotate.

Since the planet gears 31, 32, 33 roll on the stationary ring gear 34, the planet gears 31, 32, 33 via the Planetenradzapfen 1 1, 12, 13 bearing and thus forming a planet carrier pivot fitting 1 rotates slower than that of the planet gears 31st , 32, 33 driven sun gear 30. In this way, a pivoting of the vehicle door by a pivoting angle of for example 90 ° leads to two revolutions of the sun gear 30. This translation at speed of the motor vehicle door or the pivot fitting 1 to the braking device 4 leads to a rapid power for releasing or locking the brake device 4 and at the same time that the inevitable and necessary movement of the functional parts of the brake device 4 does not lead to a correspondingly large movement of the vehicle door, within which the motor vehicle door despite detection still moves about the pivot axis 10 and corresponding rattle could cause noise.

The mechanical braking device 4 shown schematically in a section in FIG. 3 has a cylindrical brake housing 40, which is connected to the hinge housing 2 or is part of the hinge housing 2. In the brake housing 40 is a

Wrap 6 with a predetermined number of turns and angled

Spring ends 61, 62 are used, which frictionally against the inner wall of the brake housing

40 is present. Within the wrap spring 6, a circular disk-shaped output element 5 is arranged, which is rotatable about the pivot axis 10 with the hollow shaft 35 of the

Sun gear 30 is connected or integrally formed on the hollow shaft 35 of the sun gear 30.

Two levers 7, 8 are hinged to linkages 70, 80 pivotally mounted on the output element 5 and positively coupled to each other via tooth segments 73, 83, so that a pivoting movement of the one lever 7 and 8 in a clockwise direction to a pivoting movement of the other lever 8 and 7, respectively leads clockwise.

The levers 7, 8 have first lever arms 71, 81, which protrude into the space between the angled spring ends 61, 62 of the wrap spring 6 and in the holding or Rest condition of the braking device 4 non-positively abut the angled spring ends 61, 62 in the sense of widening and thus tightening the wrap spring 6 with the hollow cylindrical inner wall of the brake housing 40. For frictional engagement of the first lever arms 71, 81 of the levers 7, 8 are the first lever arms 71, 81 with respect to the linkages 70, 80 of the lever 7, 8 on the output element 5 opposite second lever arms 72, 82 via hooks 74, 84th connected to a trained as a tension spring 9. The release spring 9 exerts a biasing force determined by its dimension and spring characteristic on the levers 7, 8, so that the first lever arms 71, 81 bear with corresponding biasing force on the angled spring ends 61, 62 of the wrap spring 6.

On the first lever arms 71, 81 of the lever 7, 8 opposite side of the angled spring ends 61, 62 of the wrap spring 6 are stops 51, 52 of the output element 5 each one of the two angled spring ends 61, 62 of the wrap 6 with a predetermined distance, so that when the torque exerted on the output member 5 and after a determined by the distance of the stops 51, 52 of the angled spring ends 61, 62 of the wrap angle depending on the direction of rotation of the output element 5, one of the two stops 51, 52 associated with it Angled spring end 61, 62 of the wrap spring 6 applies and this contracts against the biasing force of the release spring 9 and thus causes a release of the frictional clamping of the wrap spring 9 with the inner wall of the brake housing 40.

In the position of the functional parts of the brake device 4 shown schematically in FIG. 3, the brake device 4 is in the holding position of FIG

Motor vehicle door in which the motor vehicle door in a desired opening angle in

Regarding the linkage is fixed to the door pillar. In this holding state are the first lever arms 71, 81 of the lever 7, 8 with a braking force to the angled

Spring ends 61, 62 of the wrap spring 6, which leads to a blocking of the wrap spring 6 by the frictional engagement with the inner wall of the brake housing 40, wherein the force exerted by the levers 7, 8 braking force of the lever lengths of the first

Lever arms 71, 81 and second lever arms 72, 82 with respect to the linkages 70, 80 depend on the output element 5 and the spring force of the release spring 9, the latter in turn depend on the spring constant and the deflection of the release spring 9. Depending on whether the motor vehicle door is further opened or closed from the open position, a torque is exerted on the output element 5 connected to the motor vehicle door in the manner described above in one or the other direction of rotation about the pivot axis 10. Will that be

Output element 5, for example, rotated clockwise about the pivot axis 10, so sets the first lever arm 81 of the right in plan view lever 8 to the angled spring end 62 of the wrap 6 and leads as a result of its articulation on the output element 5 counterclockwise rotation about its articulation 80 on the output element 5 off.

Due to the coupling of the two levers 7, 8 via the toothed segments 73, 83, the left lever 7 in a top view rotates clockwise about its linkage 70 on the output element 5, so that the first lever arm 71 of the first lever 7 of his investment on Angled spring end 61 of the wrap 6 away. With the oppositely directed rotations of the levers 7, 8 about their linkages 70, 80 on the output element 5 designed as a tension spring release spring 9 is stretched, so that the pressure exerted on the angled spring end 62 of the wrap spring 6 increases braking force and thereby blocks the braking device 4, without the wrap spring 6 rotates in the brake housing 40.

If the top stop 51 of the output element 5 in plan view reaches the spring end 61 of the wrap spring 6 that is angled in the top view, this results in a contraction of the wrap spring 6 when the first lever arm 71 of the first lever 7 moves away from the left-hand angled spring end 61. whose frictional engagement on the inner wall of the brake housing 40 is reduced and leads to entrainment of the wrap spring 6 in the clockwise direction about the pivot axis 10, so that connected to the output element 5 via the sun gear 30, the planet gears 31, 32, 33 and the pivot fitting 1 Motor vehicle door with constant entrainment or actuation force can be opened or closed.

If the driving force or actuation force exerted on the motor vehicle door and thus the actuating moment exerted on the output element 5 are reduced below that by the motor vehicle door

Preload predetermined limit or holding torque, so caused by the release spring 9 biasing or braking force is effective again, so that the wrap 6th again frictionally applied to the brake housing 40 and thus blocks the vehicle door in the assumed open or closed position.

_{* * * * ** * * * *}

LIST OF REFERENCE NUMBERS

1 swing fitting

2 hinge housings

3 gear, planetary or planetary gearboxes

4 brake device

5 Disc-shaped output element

6 wrap spring

7.8 levers

9 release spring

10 pivot axis

11, 12, 13 planetary pin

20 cylinder wall opening

21 Horizontal partition

22 blind hole

23 hole

24 bearing bush

30 sun wheel

31,32,33 planet gears

34 ring gear teeth

35 hollow shaft

40 brake housing

51.52 stroke

61.62 Angled spring ends

70,80 linkages

71.81 First lever arms

72.82 Second lever arms

73.83 tooth segments

74.84 mountings

Claims

claims

1. door locking device for a motor vehicle door, the axis of rotation is articulated to a motor vehicle body and connected to a braking device,

characterized,

the braking device (4) is integrated in the axis of rotation of the motor vehicle door.

2. Door locking device according to claim 1, characterized by a coaxial with the axis of rotation of the motor vehicle door arranged transmission gear (3), which is connected on the one hand with the motor vehicle door and on the other hand with a translation to fast with the braking device (4).

3. door locking device according to claim 1 or 2, characterized in that the transmission gear (3) increases the rotational speed of the motor vehicle door when opening and closing by a multiple, preferably by 5 to 10 times.

4. door locking device according to at least one of the preceding claims, characterized in that the transmission gear (3) and the

Braking device (4) in a hinge housing (2) are integrated, via which the motor vehicle door is articulated to the vehicle body.

5. door locking device according to at least one of the preceding claims, characterized in that the transmission gear consists of a planetary gear (3).

6. door locking device according to claim 5, characterized in that the planetary gear as a planetary gear (3) is formed, whose planetary gears (31, 32, 33) are connected to the motor vehicle door and the sun gear (30) to the braking device (4).

7. Door locking device according to claim 6, characterized in that the motor vehicle door with a formed as a planet carrier pivot fitting (1) in the hinge housing (2), one in the hinge housing (2) mounted pivot axis (10) and coaxial with the pivot axis (10) arranged Planetenradzapfen (11, 12, 13), which form the axis of rotation of the planetary gears (31, 32, 33) whose teeth with the teeth of a with the

Hinge housing (2) connected ring gear or in the hinge housing (2) formed Hohlradverzahnung (34) and with the teeth of the rotatably mounted on the pivot axis (10) sun gear (30) meshes.

8. door locking device according to claim 7, characterized in that the pivot axis (10) in bearings (22, 23) on the top and bottom of the hinge housing (2) is rotatably mounted.

9. door locking device according to claim 7 or 8, characterized in that the sun gear (30) as a hollow shaft (35) is formed or connected to a hollow shaft (35) through which the pivot axis (10) of the pivoting pad (1) is inserted.

10. Door locking device according to at least one of the preceding claims, characterized in that the transmission gear (3) on the one hand and the braking device (4) on the other hand in two axially superimposed chambers of the hinge housing (2) are arranged and that by a between the

Chamber arranged bearing bush (24) the pivot axis (10) and the pivot axis (10) surrounding the hollow shaft (35) of the sun gear (30) are inserted.

1 1. door locking device according to at least one of the preceding claims, characterized in that the braking device (4) consists of a magnetic, eddy current, hydraulic, mechanical or electro-mechanical brake.

12. Door locking device according to claim 1 1, characterized in that the braking device (4) has a cylindrical housing (40) with an applied on the inner wall spring element (6), one with the sun gear (30) connected to the output element (5), a device for frictional Warping the

Spring element (6) with the inner wall of the cylindrical housing (40) at a force acting on the output member (5) torque which is smaller than an actuating torque, and means for releasing the tension of the spring element (6) with the inner wall of the cylindrical housing ( 40) at a force acting on the output member (5) torque equal to or greater than the operating torque having.

13. Door locking device according to claim 12, characterized in that the spring element (6) consists of a wrap spring or a spring band with angled

Spring ends (61, 62), in which two at the disc-shaped and about the pivot axis (10) rotatably mounted in the cylindrical housing (40) arranged output element (5) perpendicular to the plane of the disc

Abtriebselements (5) extending linkages (70, 80) pivotally on the driven element (5) hinged lever (7, 8) abut, which are coupled together and braced against each other so that they in the sense of widening the

Wrap spring or the spring band (6) on the angled spring ends (61, 62) act, while the means for releasing the tension of the

Spring element (6) with the inner wall of the cylindrical housing upon actuation of the output element (5) in the sense of a contraction of the

Wrap spring or the spring band (6) to at least one angled

Spring end (61, 62) applies.

14. Door locking device according to claim 13, characterized in that the levers (7, 8) with respect to the linkages (70, 80) of the lever (7, 8) on the output element (5) first lever arms (71, 81) between the angled spring ends (61, 62) of the wrap spring or the spring band (6) and arranged with respect to the linkages (70, 80) of the lever (7, 8) on the abrading element (5) second lever arms (72, 82) with a release spring (9) are connected.