DOOR BRAKE SYSTEM, IN PARTICULAR FOR A MOTOR VEHICLE

Abstract

A door brake system for braking and locking a hinged door of a motor vehicle includes a stop and a base body, which is moved relative to the stop via a swiveling motion of the door. The base body is hinged and/or detachably fastened to the door. The stop is arranged on the door frame or on a body of the motor vehicle. The base body is guided relative to the stop in a positive manner to improve an effect and/or the kinematics of the door brake system.

Claims

1-10. (canceled)

11. A door brake system for a door of a motor vehicle comprising: a stop; a base body configured to move relative to the stop; an adjustable counter-stop arranged on the base body for braking a relative motion of the base body via the stop; and an actuator for adjusting the counter-stop on the base body.

12. The door brake system according to claim 11, wherein the base body comprises a fixed counter-stop spaced apart from the adjustable counter-stop for braking a relative motion of the base body by the stop.

13. The door brake system according to claim 11, wherein the stop and at least one counter-stop are configured to lock the base body in a locked position.

14. The door brake system according to claim 11, further comprising a threaded spindle operatively connected with the actuator and the adjustable counter-stop for adjusting the adjustable counter-stop by the actuator.

15. The door brake system according to claim 12, wherein the threaded spindle is hingedly connected to the actuator.

16. The door brake system according to claim 12, wherein the threaded spindle is rigidly connected to the actuator.

17. The door brake system according to claim 12, wherein the threaded spindle is arranged in the base body.

18. The door brake system according to claim 17, wherein the threaded spindle is slideably mounted in at least two bearings.

19. The door brake system according to claim 11, wherein the stop and at least one counter-stop each comprise at least two contact surfaces, which are arranged on opposing sides of the base body.

20. The door brake system according to claim 11, wherein the stop is pre-tensioned against the base body.

21. The door brake system according to claim 11, further comprising a controller configured to control the actuator for adjusting the adjustable counter-stop as a function of a user input.

22. The door brake system according to claim 11, further comprising a controller configured to control the actuator for adjusting the adjustable counter-stop as a function of an acquired obstacle.

23. A motor vehicle comprising a body, a swivel-mounted door and a door brake system according to claim 11, wherein the base body is detachably fastened to one of the door or the body.

24. A motor vehicle comprising a body, a swivel-mounted door and a door brake system according to claim 11, wherein the base body is hingedly fastened to one of the door or the body.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present disclosure will hereinafter be described in conjunction with the following drawing figures, wherein like numerals denote like elements.

[0042] FIG. 1 shows a door brake system according to an embodiment of the present disclosure in a perspective view;

[0043] FIG. 2 shows the door brake system on FIG. 1 in an axial section; and

[0044] FIG. 3 shows a portion of a door brake system according to another embodiment of the present disclosure in a perspective view with base body part removed.

DETAILED DESCRIPTION

[0045] The following detailed description is merely exemplary in nature and is not intended to limit the invention or the application and uses of the invention. Furthermore, there is no intention to be bound by any theory presented in the preceding background of the invention or the following detailed description.

[0046] FIGS. 1 and 2 show a door brake system according to an embodiment of the present disclosure in a perspective view or an axial view. The door brake system includes a stop 20 denoted with a dashed line on FIG. 2, and a base body in the form of a retaining strap 10, which is hinged (in a manner not depicted) to a motor vehicle door, and for this purpose includes a borehole 11 (on the right of FIG. 1). As a consequence, it can be moved by a swiveling motion of the door relative to the stop 20 arranged on the body side.

[0047] The base body 10 is positively guided relative to the stop 10 by a guide 30, on which the stop 10 is flexibly arranged. The guide 30, and hence also the stop 10 flexibly arranged thereon, are arranged on a door frame of the vehicle body (not shown). As a consequence, the base body 10 can be displaced axially relative to the stop 20 by a swiveling motion of the door, as denoted by a double movement arrow on FIG. 2.

[0048] A dual-acting or two-sided counter-stop 40 is arranged on the base body 10. As evident in particular from FIG. 2, the counter-stop 40 brakes or locks the base body 10 in a brake or locked position relative to the stop 20 by the also dual-acting or two-sided stop 20, which in the brake or locked position interacts with it and contacts it. As a result, the counter-stop 40 also locks a corresponding swiveling motion of the door in a manner that is known, and hence not described in any more detail here.

[0049] The door brake system includes an actuator 50, with which the adjustable counter-stop 40 can be continuously and reversibly displaced on the base body 10, as denoted by a double movement arrow on FIG. 1. This adjustment allows a continuous adjustment of the brake and locked position of the base body 10 relative to the stop 20, and thus of a brake or locked position of the door. The adjustable counter-stop 40 is axially displaceably guided or slideably mounted on the base body in a positive manner by a groove 12 of the base body 10, in which two carriages 41 of the adjusted counter-stop 40 are guided.

[0050] The actuator 50 includes a drive shaft 51 driven by an electric motor, and is fastened to the base body 10 by being screwed to a side of the base body 10 facing away from the door (on the left of FIG. 1, 2).

[0051] The base body 10 includes an integrally designed, fixed, dual-acting or two-sided counter stop 60 spaced axially apart from the adjustable counter-stop 40 for braking or locking with the stop 20 that interacts with the fixed counter-stop 60 in a fixed brake or locked position differing from the adjustable brake or locked position. This fixed brake or locked position is arranged in the opening direction of the door before the adjustable brake or locked position defined by the adjustable counter-stop 40.

[0052] For braking or locking purposes, the stop 20, adjustable counter-stop 40 and fixed counter-stop 60 each include two opposite or oppositely inclined run-up surfaces or ramps. These ramps of the counter-stops are identified by reference numbers 40 or 60 on FIG. 2. As especially evident on FIG. 2, the stop 20, adjustable counter-stop 40 and fixed counter-stop 60 each include two contact surfaces for contacting the counter-stop or stop, which are arranged on sides of the base body 10 lying opposite each other (on the top and bottom of FIG. 2).

[0053] The door brake system includes a threaded spindle 70 for adjusting the adjustable counter-stop 40 via the actuator 50, which is rigidly, and hence operatively, connected with the drive shaft 51 of the actuator 50 for transmitting a torque around a longitudinal torque axis. The threaded spindle 70 includes a male thread, into which engage female threads on the carriages 41 of the adjustable counter-stop 40 guided in the groove of the base body 10, as a result of which the threaded spindle 70 is operatively connected with the adjustable counter-stop 40.

[0054] In another embodiment of the present disclosure shown on FIG. 3, the threaded spindle 70 is rotationally coupled with the actuator 50 by a cardan joint 71, and thereby operatively hinged with the latter. In this embodiment, the adjustable counter-stop 40 is also guided only by a carriage 41 in a groove 12 of the base body 10.

[0055] In addition, the base body 10 here has a two-part design. the upper half of the base body 10 is not displayed on FIG. 3 for illustrative purposes. By contrast, in the embodiment on FIG. 1, 2, the base body 10 is shaped as a single piece with the threaded spindle 70 slideably mounted in sliding bearings 72, and thereby integrated into the base body 10. In addition, the actuator 50 in the embodiment on FIG. 3 is placed in the two halves of the base body 10. Otherwise, this embodiment on FIG. 3 corresponds to the embodiment on FIG. 1, 2, so that both are described together or alternate reference is made to their respective description.

[0056] The stop 20 is flexibly mounted in the guide 30 in a known, and hence not depicted manner, and resultantly pre-tensioned against the base body 10 in an escape direction (vertically on FIG. 1, 2) transverse to the axial direction (horizontal on FIG. 1, 2) of the base body 10, so as to be able to yield to the counter-stops 40, 60 against the pre-tensioning and overcome or overrun the latter in this way.

[0057] The actuator 50 is electronically controlled by a controller denoted by a dashed line on FIG. 1 in the form of an ECU 80 as a function of a user input and/or an acquired obstacle. The adjustable brake position or locked position can advantageously be changed as desired with a user input B via the user input device 81 denoted by a dashed line on FIG. 1; for example, a swivel path between a closed position of the door and this position can be increased if needed, so as to facilitate entry and egress.

[0058] By making an adjustment as a function of an obstacle or a distance D to the latter, which is acquired by the sensor 82 denoted by a dashed line on FIG. 1, the controller 80 can advantageously determine the adjustable brake or locked position in such a way as to brake or lock the door before it reaches the obstacle. In particular, a swivel path between a closed position of the door and the adjustable brake or locked position can be diminished when an obstacle is acquired, so as to avoid a collision between the door and obstacle.

[0059] Even though exemplary embodiments were described in the preceding specification, let it be noted that a plurality of modifications are possible. For example, the base body 10 in the embodiment on FIG. 1, 2 can have a multi-part design, or conversely the base body in the embodiment on FIG. 3 can have a one-part design. In addition, the stop 20 and counter-stop 40 or 60 can also be arranged only on one side of the base body 10, for example only at the top or bottom on FIG. 2, 3. Instead of a lock provided by facing, opposing ramps, only a braking in a pull-out direction of the door can also be provided.

[0060] While at least one exemplary embodiment has been presented in the foregoing detailed description, it should be appreciated that a vast number of variations exist. It should also be appreciated that the exemplary embodiment or exemplary embodiments are only examples, and are not intended to limit the scope, applicability, or configuration of the invention in any way. Rather, the foregoing detailed description will provide those skilled in the art with a convenient road map for implementing an exemplary embodiment, it being understood that various changes may be made in the function and arrangement of elements described in an exemplary embodiment without departing from the scope of the invention as set forth in the appended claims and their legal equivalents.