JP2007509798A - A device that protects people in the event of a frontal collision with a motor vehicle by actively raising the front hood of the motor vehicle - Google Patents

Abstract

  The present invention relates to a device for protecting a person in the event of a frontal collision with a motor vehicle by actively raising the front hood (1) of the motor vehicle, which device comprises a housing (3e) fixed to the vehicle. At least one lifting member (3) having a lifting member (3b) which is guided so as to be lifted in and which is operatively connected to the front hood (1), and for moving the raised lifting member back to the basic state Reversing means. The reverse means comprises a Bowden cable (2) having a tow rope (2a) extending into the tube (2c).

Description

  The present invention relates to a device for protecting a person in the event of a frontal collision with a motor vehicle according to the premise of claim 1.

  Numerous accidents occur year by year, in which pedestrians, whether children, adults, two-wheelers, skaters, are struck by motor vehicles, front hoods or engine hoods, and Thrown into the windshield and in that case at least seriously injured. In this case, in particular, the head and upper body of an adult pedestrian or two-wheeled vehicle are at risk. Because he collided with the transition to the windshield in a relatively hard area at the rear of the front hood, as shown by collision experiments and experience, during a collision with a motor vehicle, It's quite injured.

  Based on such demands, the automotive industry is eagerly tackling the problem of improving human protection in this regard.

  A series of possibilities for solving this problem are known. One solution principle is that the front hood is stationary, for example by an air bag that can be inflated under the control of the sensor or by a crash sensor as described in DE 28 14 107 A in relation to DE 28 41 315. Mitigating the hard transition area to the windshield by means of a device for adjusting from a position to a flexible collision position that is lifted compared to this rest position, i.e. a so-called "active front hood", i.e. more It is to be configured with flexibility. The front hood is flexibly adjusted to a rest position, that is, a collision position lifted from a normal position, in a collision with a pedestrian, which is detected by a collision sensor, so that the chest or head of the pedestrian In the event of a collision, a vehicle body deformation distance is formed which acts for a more favorable energy reduction. This vehicle body deformation distance causes a slow deceleration of the head and chest and a reduced risk of injury.

  DE 197 12 961 A1 likewise shows a collision protection device based on the principle of an active front hood. The front hood's windshield end hinge device is attached to the vehicle body at the front of the vehicle by means of a hinge beam that is pivotally or movably mounted. The front hood, together with the hinge device, can be pivoted or moved or lifted upwards by energy storage means, for example spring energy storage means, which engage the hinge beam.

  In these solutions for an active front hood that has the function of lifting the front hood at the windshield end by means of a hinge detent, the front hood lock is in a closed state. Thereby, the front area of the front hood is relatively hard. This can lead to direct injury with respect to the first direct contact between the vehicle and the accident victim, especially in the lower area (thigh and abdomen) of the victim's torso. . Other than these solutions, a structure for raising the front hood under the control of a sensor in the front, that is, the front hood lock region, as described in DE 197 21 565 A1 and DE 101 08 880 A1, is also known. It has been.

  In this case, the last cited document discloses the idea of raising the front hood in the hinge area and the hood lock area in case of an emergency accident.

  In order to raise the front hood actively, a plurality of raising members are used. These raising members have a lower part firmly attached to the vehicle body, a lifting member guided so as to be raised at the lower part, and energy storage means. The energy storage means can be released in the case of an emergency accident. In this case, the lifting member is lifted together with the front hood by a predetermined work process. The prior art and the subject matter of a number of previous applications not yet published by the applicant show a series of structures for these lifting members. These lifting members typically have spring energy storage means in the form of a preloadable coil spring device as energy energy storage means.

  Since the lifting member may be released without any collision with a person, even if it is caused by an undesired release or a light collision with an object, such as a garbage bucket, during parking, and Even with a slightly raised front hood (about 55 mm), in order not to have to go forward, it must be possible to reverse the raising member, i.e. to bring it into a basic state by means of a preloaded spring device. I must.

  In order to limit the costs, it is intended that this reversal can be done manually, in particular by the passengers of the vehicle. However, the restoring force applied directly manually in this case is not sufficient to push the raised lifting member directly back or pulled back to the starting state against the strong spring force of the coil spring device. Therefore, it is known and proposed to install an auxiliary tool for reverse movement as a tool kit in a passenger car. In order to avoid these separate auxiliary tools, the front hood is lifted in the hinge region, together with a tension-stressed gas pressure spring, as described in DE 101 11 096 A1 (= EP 1 238 893 A1). It is known to use it as a lever arm for reversing the front hood. However, it is not yet disclosed in any document to reverse the front hood raised in the hood lock area without a tool kit or auxiliary tool.

  Personal protection devices operating on the principle of an active engine hood, with regard to the reverse movement of the raised lifting member, using simple means without a fixed tool kit or auxiliary tool, in particular of the raised lifting member, The problem of improving so that the raising member provided in the hood lock region can be manually moved backward is the basis of the present invention.

  The solution to the above problem is an apparatus for protecting a person in the event of a frontal collision with an automobile by actively raising the front hood of the automobile, and is guided so as to be raised in a housing fixed to the vehicle. And at least one lifting member having a lifting member operatively coupled to the front hood, and reverse means for moving the raised lifting member back to the basic state, the lifting member being in the basic state In the case of an emergency collision, the holding device is pressed against the pre-pressure of the spring energy storage device by a removable holding device. In the case of a device that can only be lifted by a working stroke of the The tube of the Bowden cable extends from the housing fixed to the vehicle of the ascending member to the connection fixed to the vehicle of the movable vehicle part that can be used as a reverse lever. The tow rope has a tension member in the form of a nipple at each end and is attached to the movable vehicle part by a first nipple and connected to a movable lifting member by a second nipple. Succeed by being linked to entrainment means.

  Simple reversing means without additional tool kits or auxiliary tools by means of Bowden cables securely laid on the vehicle, which can be used as levers and are associated with movable vehicle parts such as front hoods or vehicle doors anyway Is formed.

  Improvements and embodiments of the invention are characterized in the dependent claims and are evident from the following description of the drawings.

  The present invention will be described in detail with reference to the embodiments shown in the drawings. 1 to 3 each show an embodiment of a protective device for actively raising a front hood 1 of a passenger car, which has means for reversing the raised front hood according to the invention by means of a Bowden cable 2. In a different state, shown in a schematic overall view. The Bowden cable 2 typically includes a tow rope 2a and a tube 2c that accommodates the tow rope 2a. A pulling member (hereinafter referred to as nipple 2b) is attached to both ends of the pulling rope. The tow rope is, by convention, provided “tensioned” between the two movable parts, while the tube is “pressed” between the two parts attached to the car body. "Attached."

  In the illustrated embodiment, the front hood is lifted by the lifting member 3 provided in the hood lock region, and the reverse movement is caused by opening the front hood. In this embodiment, the lifting member 3 has a lifting member 3b that can be lifted by a compression spring 3a by sensor control within a housing 3e attached to the vehicle body. A hood lock 1a is placed on the lifting member. In this case, one end of the Bowden cable is engaged with the ascending member 3, and the other end of the Bowden cable on the towing side is attached to the rear hood hinge 4.

  In this case, the tube 2c of the Bowden cable is attached to the hinge flap 4c on the vehicle body side by an angle strap (Winkellasche) 4d on the one hand, and is attached to the housing 3e attached to the vehicle on the other hand. On the one hand, the tow rope 2a is attached to the articulated arm 4a of the hinge by a hinge lever 4b, and the other end of the tow rope is operatively coupled to a movable lifting member 3b.

  Further, a return / safety member 5 is inserted in the Bowden cable 2. The function of the return / safety member will be described later. By means of the attachment strap 4a and the holder 6 provided on the return / safety member 5, the outer jacket of the Bowden cable 2 is permanently attached to the vehicle at the front body of the vehicle. That is, no additional toolkit or auxiliary tool is required to reverse.

  FIG. 1 shows the basic state of the system. The front hood 1 is closed and the raising member is tensioned.

  FIG. 2 shows the system after ascent during a collision. The lifting member 3b is lifted together with the hood lock 1a by the working stroke “H”, and therefore the front hood 1 is also lifted actively by this stroke.

  FIG. 3 shows the reverse movement of the raising member 3 to the basic state shown in FIG. By normally raising the front hood 1 to a so-called maintenance position, the joint arm 4a applies a tensile stress to the traction rope 2a of the Bowden cable. This Bowden cable returns the lifting member 3b to the tensioned basic position as will be described in detail.

  Thus, the measures according to the present invention facilitate the reverse movement by opening the front hood via a permanently connected Bowden cable, without requiring the user any additional operating measures. Made.

  1 to 3, the principle of the invention is illustrated by a special raising member for the hood lock area. This lifting element is the subject of the earlier German patent application 103 26 404 of 12 June 2003. The disclosure of this patent application is incorporated herein by reference.

  Obviously, the invention can also be used for other lifting members having a plurality of liftable lifting members for the hood lock area and for the hinge lifting means.

  As shown in FIGS. 4 to 6, the ascending member 3 is an actuator 3c that can be actuated by a sensor, for example, extrudable, in addition to a hollow piston-like lifting member 3b and a compression spring 3a accommodated in the lifting member. And a recovery electromagnet having a release pin 3d. The restoration electromagnet is compactly stored in a housing 3e that can be firmly attached to the vehicle body, in addition to the lifting member 3b, parallel to the shaft.

  Further, the lifting member 3b is provided with a fastening bolt 3f. The clamping bolt is in operative engagement with a holding / release system consisting of a double lever 3g pre-loaded with a spring in the form of a rotary claw. In this case, FIGS. 4 to 6 show a basic state in which the clamping bolt 3f is pressed against the preload of the lifting spring 3 by the double lever system 3g. The stopper 3h fixed to the housing and the shoulder 3i formed on the lifting member 3b limit the ascending stroke “H”.

  Furthermore, the housing 3e has a chamber 7 and a connection portion 3j for the tube 2c of the Bowden cable 2. The Bowden cable traction rope 2 a enters the chamber 7. The tow rope 2a has a nipple 2b pushed up at the end. Further, the chamber accommodates a guide / entrainment portion 7a firmly attached to the lifting member 3b. The end of the tow rope 2a is guided in the axial direction in the guide / entrainment portion. In the maintained basic state shown in FIG. 1, the tow rope 2a having the nipple 2b protrudes from the guide / entrainment portion at least by the working stroke “H” above the guide / entrainment portion 7a. Actuation is performed by actuating the actuator 3c and pushing out the release pin 3. The release pin removes the double lever mechanism 3g from operative engagement with the clamping pin 3f. Thereby, the compression spring 3a can raise the lifting member 3b without being hindered by the pulling rope of the Bowden cable.

  In order to reverse the raised lifting member, this lifting member is pulled back to the starting position by the working engagement of the nipple 2b with the guide / entrainment part 7a by the traction rope 2a of the Bowden cable, where self It is held again by the tensioning double lever system 3g. This state of the lifted lifting member 3b, after the tow rope 2a has not yet been released, has been shown in FIG. 5 after the tensioned basic state has been reversed.

  The reverse movement process with the Bowden cable 2 proceeds as follows (see FIGS. 2 and 3).

  A hinge lever 4b is rotatably attached to the joint arm 4a of the hood hinge 4, and a pulling rope of the Bowden cable 2 is engaged with the hinge lever. When the hood 2 is closed, the tow rope 2a is pushed into the tube 2c by the hinge lever 4b. The tube is then free forward in the raising member. That is, the end portion 2a of the rope having the nipple 2b protrudes above the entraining portion 7a so that the ascending stroke can be moved without hindrance as described above.

  In order to reverse the front hood that has been lifted forward by the release at the time of collision, the hood is further opened manually, so that a tensile load is applied from the hinge lever 4b to the traction rope 2a of the Bowden cable 2. Thus, the entrainment means 7a and the upper part where the raising member 3 is drawn out are pulled back. Therefore, the system is reversed and newly tensioned to the holding position.

  When closing the front hood from the position of FIG. 3 to the position of FIG. 1, the tow rope 2a of the Bowden cable is pushed back by the hinge portion 4 to the extent that the nipple 2b is free again as shown in FIG.

  The illustrated reverse movement means further comprises the return / safety member 5 already described in detail in FIG. This return / safety member has a return spring 5b. The return spring, as a compression spring, causes the nipple end 2b of the traction rope 2a to always be outside the entrainment means 7a. The compression spring is incorporated in the half of the housing 5c, supported on the bottom of the housing on the one hand and on the disk 5d on the other hand. The disc is attached to the tow rope so that it does not move axially. A safety means 5e is incorporated in the other half of the housing 5c. This safety means has an overload safety member to compensate for tolerances and to prevent excessive stresses in the total reverse system.

  This is done, for example, by a tension spring having an internal preload. This tension spring is designed such that the tension spring causes compensation of tolerances due to extension for a given force or load, for example in the range 200-1000N, in particular in the range 600-800N. As long as no preload occurs, the spring acts as a rigid member. Only when the load increases is the spring stretched. Overload protection for this spring is provided by incorporating the spring into a housing that limits the extension of the spring in the axial direction.

  Alternatively, a rubber spring that is exposed to tensile stress is also conceivable.

  A number of embodiments of the present invention have been described above with reference to FIGS. In these embodiments, the reverse movement of the front hood occurs when the front hood is closed. This is because a reverse tensile stress is applied to the pulling rope 2a of the Bowden cable at that time. Other embodiments will be described with reference to the following drawings 8 to 13. In this embodiment, the lift of the lifted member is lifted, and therefore the front hood is reversely moved when the hood is closed.

  In this case, the essential feature is the rotary catch 8 provided on the lifting member 3b. This rotary catch allows automatic engagement of the Bowden cable traction rope upon opening of the hood and automatic separation after reverse movement after the lifting member is raised.

  For example, in the case of normal actual use of the front hood for normal opening in the case of maintenance, the rotary catch does not operate when the hood is opened or closed. That is, the Bowden cable tow rope does not interfere with the normal actual operation of the front hood.

  This principle will now be described in detail with reference to FIGS. 8 to 13, which show different operating states of the lifting device. The depiction of the raising member is significantly simplified compared to FIGS.

  FIG. 8 shows the lifting member 3 in the basic position. In the illustrated embodiment, two lifting compression springs 3a are assigned to the lifting member 3b. As described above with reference to FIG. 4, the lifting member having the upper lock support is pressed against the preload of the two compression springs 3a by the double lever mechanism 3g via the tightening bolt 3f. .

  A rotary catch 8 is attached to the lifting member 3b so as to be rotatable and preloaded with a spring. The specific configuration of the rotary catch 8 is particularly apparent from FIG. The rotary catch has a holding surface 8a for fixing the rotary catch.

  Further, a rope guide 3k for the nipple 2b of the tow rope 2a is formed on the lifting member. In this case, the rotary catch 8 is positioned below the lower edge of the inner part 3l of the housing, where the holding surface 8a of the rotary catch can be used as a support surface for the holding surface 8a. Thus, it is attached with a hinge in the vertical direction of the lifting member 3b.

  In the standard case, i.e. in the basic state shown in FIG. 8 where the lifting member is tensioned, the nipple 2 b is below the rotary catch 8. When the lifting member is activated and the lifting member 3b is brought into the raised position shown in FIG. 9, the rotary catch comes to the horizontal holding position by the working contact of its holding surface 8a with the interior 3l of the housing . Accordingly, the tow rope having the nipple 2b remains in the conventional position.

  Thus, the rise of the system is not impaired by the Bowden cable. When the front hood is kept in the closed position, there is no connection between the traction rope 2a and the lifting member 3b.

  After an undesired start-up, the vehicle driver raises the front hood 1 for reverse movement. In the alternative embodiment shown in FIG. 15, the end of the tube 2c of the Bowden cable is attached to the hinge 4 via an angle strap 4d used as a support point. Therefore, when the hood is raised, the tow rope 2a is pushed into the tube 2c of the Bowden cable. As a result, as shown in FIG. 10, the end of the pulling rope 2a having the nipple 2b on the lifting member side moves upward in the direction of the arrow, and the spring-loaded rotary catch 8 is turned clockwise. Slid by the rotary catch and move further upward. After the nipple 2b passes through the rotary catch 8, the rotary catch is closed again in a spring-loaded state, and the rotary catch holding surface 8a is supported as shown in FIG. In contact with the inner wall 3l of the housing.

  When closing the front hood, the tow rope 2a is pulled by the movement of the articulated arm 4a by attaching the Bowden cable to the hinge versetzt as shown in FIGS. As a result, the end of the pulling rope 2a on the lifting member side is pulled downward in the arrow direction within the rope guide 3k as shown in FIG. In this case, the nipple 2b is engaged with the rotary catch 8. The rotary catch has two spaced apart pawls 8b as shown in the component diagram shown in FIG. A tow rope 2a passes between them. Since the working surface 8a is in shape engagement with the wall portion 31, the rotary catch 8 is prevented from opening downward under tensile stress. Therefore, when the front hood is further closed, the lifting member 3b is pulled to the basic position by the tow rope 2a via the rotary catch attached to the lifting member, and at the same time the clamping holder 3f is double hinged. It is hooked by the mold holder 3g. In this case, the state immediately before the end of the reverse stroke is shown in FIG. After reaching the holding position, the working surface 8a of the rotary catch 8 is released from working engagement with the interior 3l of the housing. As a result, the rotary catch 8 is released and opened while rotating counterclockwise. The traction rope 2a having the nipple 2b slides down from the rotary catch 8 and is free again. Thus, the basic state shown in FIG. 8 is achieved again. Therefore, this rotary catch 8 has the following functions. That is, the rotary catch forms a connection between the traction rope and the lifting member, if necessary, or releases this connection again by control.

  In the embodiments described so far, the front hood is used like a lever as the reverse assisting means. It is also conceivable to use the vehicle door as a reverse lever instead of the front hood. Then this means that the driver always gets off as follows: when opening the door, preferably the driver's door (because the safety device is activated) It is preferable that the movement is performed in a reverse motion. However, the configuration may be such that a reverse motion is made when the door is closed. Alternatively or additionally, a reverse bowden cable 2 may be coupled to the passenger door. In this case, it is appropriate that the Bowden cable is connected to the hinge or directly to the door. Other movable vehicle parts, such as a tailgate, can also be used as a reverse lever. However, in order to suppress the length of the Bowden cable, a vehicle portion close to the ascending member is preferable.

  The use of the vehicle door as a reverse lever for a Bowden cable type reverse means will be described with reference to FIG. 14, which consists of four FIGS.

  14A, C and D show the vehicle door 9 in a very schematic depiction. The vehicle door is attached to a so-called front pillar 11 via a hinge 10. A fender 12 is connected to the front pillar. In this case, the vehicle door 9 is closed in FIG. 14A. In contrast, in FIGS. 14C and 14D, each vehicle door is open. As specifically shown by the cross-sectional view shown in FIG. 14B (a cross-sectional view taken along line II in FIG. 14A), the hinge 10 is separated from the door 10a of the hinge portion and the frame 10b of the hinge portion. Become. Both are operatively coupled by a hinge shaft 10c like a rotary joint. A nipple 2b of a pulling rope 2a of a Bowden cable is hinged to the door 10a of the hinge portion. This tow rope is guided along the vehicle body to the attachment means 14 of the tube 2c for the Bowden cable through the first turning roll 13 rotatably attached to the frame 10b of the hinge portion, and there To each of the raising members 3 to be moved backward. When the door shown in FIG. 14C is opened, the tow rope is pulled out by the stroke “Hub” and at the same time raised by the corresponding stroke of the lifting member 3 as described above for the two embodiments. The lifting member 3 is moved backward. FIG. 14D shows an alternative embodiment to the modified embodiment shown in FIGS. 14A-14C. In this alternative embodiment, by closing the door 9, a pulling force is applied to the traction rope 2a and thus the lifting member is reversed with the front hood. For this purpose, the tow rope 2a is guided via another turning roll 15 provided on the hinge shaft 10c. Therefore, when closing the door 9, the tow rope 2a is pulled out from the tube 2c of the Bowden cable.

  Furthermore, what has been said about the first variant embodiment shown in FIGS. 1 to 7 applies to the two variant embodiments shown in FIGS.

A configuration in a basic state in which a lifting member attached to the hood lock region of an active front hood of a passenger car is reversely moved by a Bowden cable using a front hood used as a pulling lever when the front is opened. The members are shown in a schematic overall view. FIG. 2 corresponds to FIG. 1 but shows the front hood being raised. FIG. 3 shows a view corresponding to FIG. 1 after the front hood raised as shown in FIG. 2 is reversed. The internal structure of the raising member shown in FIGS. 1 to 3 and in the basic state is shown in a longitudinal sectional view. FIG. 5 shows the state of the raising member after the reverse of the tensioned basic state, where the tow rope of the Bowden cable has not yet been released, in a view corresponding to FIG. FIG. 6 shows a cross-sectional view of the lifting member shown in FIGS. 4 and 5, taken along line BB. The internal structure of the return / safety member inserted in the Bowden cable shown in FIGS. 1 to 3 is shown in an enlarged sectional view. In a cross-sectional view, the tensioned state of the lifting member with an embodiment of its modification of the Bowden cable type reverse movement means shown in FIGS. 1 to 7 for performing the reverse stroke by closing the front hood Show. FIG. 1 is a cross-sectional view of a raised state of a lifting member having a modified embodiment of the Bowden cable type reverse movement means shown in FIGS. 1 to 7 for performing a reverse stroke by closing a front hood. Show. The raised state shown in FIG. 9 of the raising member having the modified embodiment of the Bowden cable type reverse means shown in FIGS. 1 to 7 for performing the reverse stroke by closing the front hood Is shown in cross section with the position of the Bowden cable after the front hood is opened. The raised state shown in FIG. 9 of the raising member having the modified embodiment of the Bowden cable type reverse means shown in FIGS. 1 to 7 for performing the reverse stroke by closing the front hood Is shown in a sectional view along with the position of the Bowden cable just before the start of reverse movement by closing the front hood. Backward movement of the ascending member just before the holder is latched with the modified embodiment of the Bowden cable-type reverse movement means shown in FIGS. 1 to 7 for performing the reverse stroke by closing the front hood The resulting state is shown in a sectional view. Fig. 13 shows an isometric view of the rotary catch shown in Figs. 8 to 12, which is coupled to the end of a tow rope of a Bowden cable, usually to which a nipple is attached. The embodiment of the change of the Bowden cable type reverse movement means which uses the door of a vehicle as a lever is shown. The embodiment of the change of the Bowden cable type reverse movement means which uses the door of a vehicle as a lever is shown. The embodiment of the change of the Bowden cable type reverse movement means which uses the door of a vehicle as a lever is shown. Another embodiment of Bowden cable type reverse movement means using a vehicle door as a lever is shown. FIG. 13 is a cutaway view of a Bowden cable attached state on the hinge side, instead of the modified embodiment shown in FIGS.

Explanation of symbols

1 Front Hood 1a Hood Lock 2 Bowden Cable 2a Towing Rope 2b Nipple 2c Tube 3 Lifting Member 3a Compression Spring 3b Lifting Member 3c Actuator 3d Release Pin 3e Housing 3f Tightening Bolt 3g Double Lever 3h Stopper 3i Shoulder 3j Rope 3k Rope Guide 3l Inside of housing having supporting surface 4 Hood hinge 4a Articulated arm 4b Hinge lever 4c Hinge flap on vehicle side 4d Angle strap 5 Return / safety member 5a Mounting strap 5b Return compression spring 5c Housing 5d Disk 5e Safety means 6 (Bowen Holder (for cable) 7 Chamber 7a Entrainment part 8 Holding surface 8a Holding surface 8b Claw 9 Door 10 Door hinge 10a Hinge flap door 10b Hinge flap frame 1 c hinge shaft 11 before the pillar 12 fender 13 first deflection roll 14 attachment means 15 other deflection roll for Bowden cables.

Claims (16)

A device for protecting a person in the event of a frontal collision with an automatic vehicle by actively raising the front hood (1) of the automatic vehicle, which is guided so as to be raised in a housing (3e) fixed to the vehicle. And at least one lifting member (3) having a lifting member (3b) that is operatively coupled to the front hood (1), and reverse movement means for moving the raised lifting member back to a basic state. The lifting member is pressed against the preload of the spring energy storage device (3a) by a removable holding device (3f, 3g) in a basic state, in case of an emergency collision. In the device that can be lifted by a predetermined work stroke using the actuator (3c) by releasing the holding device (3f, 3g) by sensor control,
The reverse means comprises a Bowden cable (2) having a tow rope (2a) extending into the tube (2c), the tube of the Bowden cable being fixed to the vehicle of the lifting member (3) Extending from the housing (3e) to a connecting part of the movable vehicle part (1, 9) that can be used as a reverse lever, fixed to the vehicle, and the tow rope (2a) of the Bowden cable is At each end there is a tension member in the form of a nipple (2b), which is attached to the movable vehicle part (1, 9) by means of the first nipple (2b), the second nipple By (2b), the device can be coupled to entraining means (7a, 8) connected to the movable lifting member (3).   Device according to claim 1, characterized in that the vehicle part that can be used as the reverse lever is a front hood (1).   The first nipple (2b) of the tow rope (2a) is rotatably attached to a hinge (4), and the front hood (1) is attached to the vehicle body of the vehicle by the hinge. The apparatus according to claim 2.   The first nipple (2b) of the tow rope (2a) is arranged so that a pulling force can be applied to the tow rope (2a) when the front hood (1) is opened. The device according to claim 3, wherein the device is attached to the device.   The first nipple (2b) of the tow rope (2a) is arranged so that a pulling force can be applied to the tow rope (2a) when the front hood (1) is closed. The device according to claim 3, wherein the device is attached to the device.   Device according to claim 1, characterized in that the vehicle part that can be used as the reverse lever is a door (9) of the motor vehicle.   7. The device according to claim 6, wherein the door (9) of the motor vehicle that can be used as the reverse lever is a driver door.   The first nipple (2b) of the tow rope is attached to the hinge (10) of the vehicle door (9) or directly to the vehicle door (9). Or the apparatus of 7.   The first nipple (2b) of the tow rope is attached to a hinge flap (10a) on the door side so that a tensile force can be applied to the tow rope (2a) when the door is opened. The apparatus according to claim 8.   The first nipple (2b) of the tow rope (2a) is attached to the door side hinge flap (10a) so that a pulling force can be applied to the tow rope (2a) when the door is closed. 9. The device according to claim 8, wherein   The length of the tow rope (2a) of the Bowden cable (2) and the coupling of the second nipple (2b) to the entrainment means (7a, 8) are on the one hand used as the reverse lever. During normal actual use of the part (1, 9), no connection is made, on the other hand, in the event of an emergency accident, the lifting of the lifting member (3b) may interfere with the tow rope. 11. A device according to any one of the preceding claims, characterized in that it is in a state of being made unsuccessful.   The entrainment means (7a) is attached to the lifting member in the foot region of the lifting member (3b) and the length of the tow rope (2a) is the second of the tow rope. 10. A device according to claim 11, 4 or 9, characterized in that the nipple (2b) is dimensioned to project from the entrainment means (7a) at least by the working stroke (H) in the basic state.   The entraining means formed as a claw-shaped rotary catch (8) preloaded by a spring is pivotally attached to the lifting member in the upper region of the lifting member, and the pulling rope (2a) The length is as follows: the tow rope (2a) with the second nipple (2b) is positioned in the basic state directly below the rotary catch (8), During the normal opening of the front hood (1) or the door (9), it can slide freely beside the rotary catch (8) pivoted in the “open” state, and After the lifting member is lifted, when the front hood (1) or the door (9) is opened, it slides near the rotary catch (8). At this time, the rotary catch is moved to the nipple ( According to 2b) The traction rope, in this case, automatically engages with the rotary catch (8) and closes the front hood (1) or the door (9). 11. A device according to claim 11, 5 or 10, characterized in that it is automatically separated again after a reverse movement by.   The lifting member (3) is attached to the front portion of the vehicle in the area of the hood lock (1a) of the front hood (1), and the lifting member (3b) is directly connected to the hood lock (1). Device according to any one of the preceding claims, characterized in that 1a) is mounted.   A return / safety member (5) is inserted into the Bowden cable (2). The return / safety member is provided on the one hand with a return compression spring (5b) and on the other hand with an overload safety means ( Device according to one of the preceding claims, characterized in that it has 5e).   The device according to claim 15, characterized in that the overload safety means (5e) is formed by a tension spring having an internal preload, the extension of the tension spring in the axial direction being limited.

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