Door handle device for a door of a motor vehicle, door, and motor vehicle

Abstract

A door handle device for a door of a motor vehicle, with a bearing bracket attachable/attached to the door, with a door handle pivotally mounted on the bearing bracket, with an unlocking device that connects the door handle to the door lock so as to unlock the door lock upon actuation of the door handle, and with a blocking element, which is disposed on the bearing bracket in a release position releasing the unlocking device. The blocking element is at least partly displaceable into a blocking position preventing the unlocking device from unlocking so as to prevent opening of the door in an accident-related deformation of the door. It is provided that the blocking element is designed to be plastically and/or elastically deformable at least in sections such that the blocking element is movable into the blocking position at least in sections in the direction of the bearing bracket.

Claims

1. A door handle device for a door of a motor vehicle, the door handle device comprising: a bearing bracket attachable to the door; a door handle pivotally mounted on the bearing bracket; an unlocking device that connects the door handle to a door lock so as to unlock the door lock upon actuation of the door handle; and a blocking element arranged on the bearing bracket in a release position, wherein in the release position, the unlocking device is releasable, wherein the blocking element is at least partly displaceable into a blocking position to prevent the unlocking device from being released so as to prevent opening of the door in an accident-related deformation of the door, wherein the blocking element is plastically and/or elastically deformable at least in sections such that the blocking element is movable into the blocking position at least in sections in a direction of the bearing bracket, wherein the blocking element has a fastening end disposed on the bearing bracket and a blocking section associated with the unlocking device, wherein a first side of the blocking section of the blocking element has at least one blocking projection that extends therefrom, wherein a second side of the blocking section, that opposes the first side, has an actuating projection that extends therefrom, and wherein the blocking element is a monolithic structure.

2. The door handle device according to claim 1, wherein the blocking section is designed as a free end of the blocking element.

3. A door handle device for a door of a motor vehicle, the door handle device comprising: a bearing bracket attachable to the door; a door handle pivotally mounted on the bearing bracket; an unlocking device that connects the door handle to a door lock so as to unlock the door lock upon actuation of the door handle; and a blocking element arranged on the bearing bracket in a release position, wherein in the release position, the unlocking device is releasable, wherein the blocking element is at least partly displaceable into a blocking position to prevent the unlocking device from being released so as to prevent opening of the door in an accident-related deformation of the door, wherein the blocking element is plastically and/or elastically deformable at least in sections such that the blocking element is movable into the blocking position at least in sections in a direction of the bearing bracket, wherein the blocking element has a fastening end disposed on the bearing bracket and a blocking section associated with the unlocking device, wherein a first side of the blocking section of the blocking element has at least one blocking projection that extends therefrom, wherein a second side of the blocking section, that opposes the first side, has an actuating projection that extends therefrom, wherein the unlocking device has a counterweight associated with the door handle, and wherein the blocking section of the blocking element extends at least partly over the counterweight.

4. The door handle device according to claim 3, wherein the at least one blocking projection engages, in a positive manner, the counterweight in the blocking position so as to prevent the counterweight from moving relative to the bearing bracket.

5. The door handle device according to claim 1, wherein at least the blocking section of the blocking element is disposed on a side of the bearing bracket that faces away from the door handle.

6. The door handle device according to claim 1, wherein the blocking element is formed in one piece with the bearing bracket.

7. A door for a motor vehicle comprising: a support structure; at least one cladding element; and the door handle device according to claim 1.

8. The door according to claim 7, wherein the bearing bracket is associated with the at least one cladding element, and wherein the blocking element lies between the bearing bracket and the support structure of the door.

9. A motor vehicle comprising at least one of the door according to claim 7.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus, are not limitive of the present invention, and wherein:

(2) FIG. 1 shows a schematic illustration of a motor vehicle in a simplified side view;

(3) FIG. 2 shows a schematic illustration of a door handle device for a door of a motor vehicle in a perspective illustration; and

(4) FIG. 3 shows a schematic illustration of a door for a motor vehicle with a door handle device in a perspective illustration.

DETAILED DESCRIPTION

(5) FIG. 1 shows in a simplified side view a schematic illustration of a motor vehicle 1, which has a plurality of movable doors 2 for closing or releasing a door opening. In the closed state, doors 2 are fixedly articulated by a door lock in each case to the body or to a door frame of motor vehicle 1. In order to release the door lock, a door handle device 3 is disposed on each door. Both door handle devices 3 each have at least one exterior door handle 4, which is displaceable, wherein the respective door lock can be released or opened by its displacement. For this purpose, each door handle device 4 has an unlocking device 5, which mechanically connects door handle 4 to the door lock. A mechanical unlocking of the door lock can occur, for example, via the actuation of an internal or an external actuation Bowden cable of unlocking device 5.

(6) FIG. 2 shows in a simplified schematic illustration a door handle device 3 for a door 2 of a motor vehicle 1 with a bearing bracket 6, with a blocking element 7, and with a movable counterweight 8. Bearing bracket 6 supports a door handle, which is pivotally held on bearing bracket 6. Counterweight 8 is used to counteract inertial forces which in an accident-related deformation of the door act on unlocking device 5 and produce a torque in a direction towards the opening of unlocking device 5, by generating an opposite torque, which compensates for the torque due to the inertial force, so that unlocking device 5 does not shift itself to another position. Unlocking devices of door handles in motor vehicles are basically known; unlocking device 5 present here can be designed in a conventional manner.

(7) Blocking element 7 has a blocking section 9, a blocking projection 10, and an actuating projection 11. Blocking section 9 of blocking element 7 extends partly over counterweight 8 and in this exemplary embodiment interacts with counterweight 8 in an accident-related deformation of the door, for example, in a side impact. Blocking element 7 is attached to bearing bracket 6 by means of a fastening end 12 formed on blocking element 7. Fastening end 12 according to the present exemplary embodiment has a clip 15 which is designed to be pushed onto a retaining projection 16 of bearing bracket 6. In particular, clip 15 is designed to engage behind projection 16 in a latching manner. For this purpose, clip 15 is elastically expandable when pushed onto projection 16, so that when projection 16 is fully received behind it, due to its inherent elasticity it engages projection 16 in a locking manner. As a result, a simple mounting of blocking element 7 on bearing bracket 6 is ensured. According to an alternative exemplary embodiment, fastening end 12 has, instead of clip 15, a mounting pin or a locking element, which interacts with a receiving recess of bearing bracket 6 for latching locking of blocking element 7 on bearing bracket 6.

(8) The blocking element is plastically and/or elastically deformable at least in sections, therefore, can be changed in its shape in a nondestructive manner, so that in particular blocking section 9 can be moved in the direction of counterweight 8 without blocking element 7 breaking thereby.

(9) In an accident-related deformation of the door, blocking element 7 blocks counterweight 8, in particular by positive engagement, and thereby prevents opening of the door lock. Blocking element 7 is brought into engagement with counterweight 8 by contact of actuating element 11 with the door lock or other adjacent components and thereby leads to the blocking of unlocking device 5. The contact of actuating projection 11 is caused by the deformation of vehicle parts, for example, outer door panel 13. After a deformation of the door, blocking element 7 is plastically and/or elastically deformed at least in sections; preferably blocking section 9 is plastically and/or elastically deformed.

(10) FIG. 3 shows, in a simplified sectional view, door handle device 3 of door 2 of a motor vehicle 1. Bearing bracket 6 is attached to an outer door panel 13 of door 2. Bearing bracket 6 supports the door handle, which is pivotally disposed on bearing bracket 6. Blocking element 7 in the mounted state is disposed between bearing bracket 6 and a door frame element 14.

(11) In an accident-related deformation of the door, for example, in a side impact, against outer door panel 13, outer door panel 13 is deformed in the region of door handle 3. Bearing bracket 6 attached to outer door panel 13 thereby moves with blocking element 7 in the direction of a door frame member 14. With sufficient force, blocking element 7, in particular actuating projection 11, is pressed thereby against door frame element 14. Actuating projection 11 enables an initial movement of blocking element 7 into a blocking position in unlocking device 5. The distance in the release position between blocking element 7 and bearing bracket 6 is reduced by the movement of blocking element 7 relative to bearing bracket 6, and blocking element 7 engages in counterweight 8 with blocking section 9, in particular with blocking projection 10, or pushes itself in front of counterweight 8 (see FIG. 2), so that it is prevented from moving relative to bearing bracket 6. Due to the prevention of the movement of counterweight 8 relative to bearing bracket 6 in the achieved blocking position, blocking element 7 prevents door handle device 3 from resulting in the opening of the door lock, therefore, in unlocking device 5 being displaced into a release position. This prevents the door from being able to open or to unlock automatically in an accident-related deformation of the door. Blocking element 7 is preferably held largely free of play on bearing bracket 6 in order to hold blocking element 7 firmly on bearing bracket 6 and to enable as little movement as possible of blocking element 7 relative to bearing bracket 6, so that an exact spatial engagement in bearing bracket 6, in particular in counterweight 8 of bearing bracket 6, is made possible in an accident-related deformation of the door.

(12) Counterweight 8 is restricted or completely blocked in its movement by blocking element 7, and this thereby prevents the unlocking of the door lock. If door 2 or components of door 2 are deformed by an intruding barrier, blocking element 7 and bearing bracket 6 move in opposite directions. This can occur, for example, by the contact via an actuating projection 11 of blocking element 7 with the door lock or other components. Blocking projection 11 moves in bearing bracket 6, in particular in front of counterweight 8 or engages in counterweight 8. Counterweight 8 cannot move or rotate thereby, as a result of which no actuation of the external actuation Bowden cable occurs. Unlocking device 5 with the door lock associated therewith is thereby prevented from opening during an accident and remains locked.

(13) The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are to be included within the scope of the following claims.