DE102004056301A1 - Hinge fitting for front hood of passenger car, has hinge side fixing point that moves on circular path around catch side fixing point, during sudden rising of front hood, and captivation unit determining position of hinge support - Google Patents

Abstract

The fitting has a lifting unit that shifts a hinge support (12) to a distant position from a console, when the lifting unit is displaced from a normal usage position. A hinge side fixing point (3) moves on a circular path around a catch side fixing point, during sudden rising of a front hood. A captivation unit determines the position of the support through movement paths of the lifting unit and the fixing point (3). An independent claim is also included for a holding arrangement for holding an actuating unit in a pre-stressed spring unloading - standby position.

Description

The The invention relates to a hinge arrangement for a swing-open flap on a motor vehicle, in particular for a hood, with a to be attached to the flap first hinge part and on the body to be fitted second hinge part, wherein the second hinge part by unloading an energy storage of a Basic position in a raised position from the first hinge part is spaceable and the energy storage acts on a lifting guide, which in particular has a tappet stuck in a cylinder, which plunger on his Head has a joint and runs during unloading from the cylinder, wherein the first hinge part is hinged to the hinge of the plunger head.

Such a hinge arrangement is known from DE 10141628 A1 previously known. This document discloses a multi-joint hinge, the handlebar is hinged to a first hinge part, which is firmly connected to the body. At the other end, the two links are connected to a second hinge part, which is firmly connected in the basic position with the body. In order to raise the bonnet trigger-controlled in the short term, an energy accumulator engages the second hinge part, so that it can be moved into a pivoting position. The energy accumulator consists of a plunger stuck in a cylinder, wherein the cylinder is fixedly connected to the body and the head of the plunger carries a joint to which the second hinge part is hinged. With this arrangement is to be achieved that the front cover is actively brought in the event of an impact of the motor vehicle against a pedestrian in a distance position, so that the pedestrian can be collected by the then removed from the engine block or other units hood, which then in the can escape the free space, so as to reduce the impact forces.

From the DE 10141 628 A1 In addition, a variety of similar shaped hinge assemblies is known in which also energy storage are provided, which engage the second hinge part to achieve the distance position.

The DE 103 05 329 A1 describes a pivot mechanism with which the hood can be moved into the gap distance position.

Of the Invention is based on the object, the generic hinge assembly to simplify their structure.

Is solved the object by the invention specified in the claims, wherein the claim 1 first and essentially suggests that the head itself forms the fulcrum of a single pivot hinge. For this purpose, the plunger head fixed in position in the basic position on the second hinge part. These Position fixation changes not when the hood is opened.

The dependent claims represent both advantageous developments of claim 1 as well as taken by itself stand-alone solutions. Thus, it is provided that the second hinge part forms a bearing cup, in which a bearing profile section of the plunger head rests. The bearing profile section can be designed differently. He can form a dome or a truncated cone section. But there are also other designs possible, in particular those in which the bearing profile section tapers towards the bearing cup. The bearing cup may form a counter profile corresponding to the bearing profile section, so that the bearing cup and the bearing profile section engage with one another like matrices / patrices. The force with which the plunger head is held against the second hinge part is preferably applied by a spring. But it is also possible to use a wedge, which is arranged between the lower side of the second hinge part and thereon facing end face of the cylinder, so as to exert a tensile force on the plunger head, so that its profile section is held in the bearing cup. The spring may engage the second hinge part and bear against the head of the plunger. But it is also envisaged that the spring is a compression spring and is supported on one side on the back of the bearing cup and on the other side at the opening edge of the cylinder. In a preferred embodiment, the free end of the cylinder is fixedly connected to the body or a corresponding extension of the second hinge part. The connecting element used for this purpose can be a tension element, so that even the previously mentioned spring can be dispensed with. The tension element may be, for example, an eccentric with which the plunger head is pulled firmly into the bearing cup by applying a corresponding tensile force. The bearing cup has approximately in its center an opening which is penetrated by the push rod. An escape slot can be attached to the opening, which is directed towards the lock of the front flap, so that the push rod can dip there when the hood swings up around the lock-like pivot point. The free end of the cylinder protruding substantially at right angles from the valve plane in the closed state can not be fastened by the body, but also to an extension protruding at right angles from the second hinge part. The stroke of the flap is essentially defined by the stroke of the plunger, as this is substantially perpendicular stands. The flap remains firmly on the lock side connected to the body. It pivots about this fixed point, so that the plunger head moves during the lifting movement on a circular arc. When lifting the hinge point of the flap a einendseitig on the plunger head and the other end hinged to the second hinge part handlebar is placed from a parallel position to the second hinge part in an inclined position in which it stabilizes the position of the plunger. To compensate for movement has a hinge point of the handlebar has a longitudinal slot. Preferably, the handlebar is articulated with the longitudinal slot on the second hinge part. On the broad side of the handlebar formed by a narrow steel plate can be a sawtooth profiling. The joint may also have a pivot lever, on which there is a corresponding sawtooth profiling. These two sawtooth profiles occur when pivoting the handlebar in a reverse movement blocking engagement. The engagement can be canceled by pivoting the pivot lever. The plunger is fixed in position both in its normal position and in the raised position relative to the cylinder by suitable means. It may be Reibschluss- or positive locking means. This position fixing means can be repealed on the one hand in the power storage release and on the other hand in the return of the hinge assembly in the basic position. The interlocking means may also be a plastic or metal ring arranged inside the cylinder. This is arranged immobile there in the axial direction. The push rod may have in the associated location a circumferential groove in which a radially inwardly directed projection of the ring protrudes. When triggering the energy storage, the ring can be destroyed. If the ring has a certain elasticity, destruction of the ring is not required. Then the projecting into the annular groove projection can be displaced elastically. It is considered to be particularly advantageous that this is a Einelenkscharnier, wherein the body-side part of the arrangement consists of the hinge part and in the basic position with this single rigid body forming plunger together with cylinder. The arrangement thus has relatively few components and is easy to assemble. In addition, it is ensured that after triggering the energy storage device, the entire device can be moved back to the normal position.

kick in a crash, a parallel shift between the two Hinge parts, so by suitable means an extension of the energy storage prevented. In this case this is going through the interaction of the catch hook and the projection of the breakthrough reached. Where the ram head is firmly fixed in the second hinge part, somehow has the Pestle or the first hinge part the possibility given to perform the parallel shift. This can be done, for example a predetermined bending point in the plunger, by a slot in the first hinge part in the area of the plunger head joint or a predetermined folding zone in the first hinge part can be achieved. By this measure it is made possible constructively, that between the two hinge parts a parallel displacement can be done.

The binding of the plunger head to the second hinge part can be done in various ways. Preferably, a profile section overlapping clip is used, the ends of which are detachably connected to the second hinge part. In this embodiment, it is advantageous that the energy storage is not required as such for capturing the plunger head to the second hinge part. This has the consequence that the energy storage device can be mounted at a later time than the rest of the hinge assembly. The two hinge parts can be mounted in an interconnected state before painting the body, so that the flap or the front hood is operatively associated with the body. Only after painting the energy accumulator can be connected to the body or an extension of the second hinge part and the plunger head. In a variant, it is provided that the profile section forming part of the plunger head is covered by a holding pot. From the holding pot projecting tongues can protrude through corresponding openings of the second hinge part. With the tongues, the holding pot can be riveted to the second hinge part. This connection is designed so that it is dissolved when the energy storage device is triggered. The push rod can be screwed to the plunger head. For this purpose, the free end of the push rod may have an external thread which can be screwed into a corresponding internal thread of the plunger head. In a variant, a bayonet connection between the plunger head and the free end of the push rod is provided. The connection can also be generated by a spring clip, in which a bolt aligned openings of an extension of the plunger head engages around an insertion of the push rod. The first hinge part, which is attached to the flap, is preferably connected to a head of a lifting guide. This head of the lifting guide forms a joint eye. The head is normally firmly connected to the second hinge part. In a preferred embodiment, the lifting guide is formed by a plunger stuck in a cylinder. The head may be the plunger head. This is raised when unloading the energy storage. In further embodiments, not shown, the lifting guide has a different shape. Possible shapes are described in the publications cited below. The disclosure of these documents is incorporated in full in this application: DE 10340469.4 . DE 10305329 . DE 102004017958 . DE 10343106 . DE 10346397 . DE 10141628 and DE 10111146 , Also, the force accumulator and hinge assemblies described in the aforementioned publications can be used in principle for the realization of the hinge arrangement described in this application. In a further preferred embodiment of the invention it is provided that the second hinge part has a retaining sleeve, this can be formed by a metal strip which is firmly connected to the second hinge part. The retaining sleeve may have a C-shaped outline contour. Through the C-slot, the push rod can escape the lifting guide. Within the retaining sleeve may insert a fixing, which may be formed as a plastic part. The latter holds a hinged suction support, which is connected at one end to the first hinge part and which can be coupled with its second end with the lifting guide. The thus formed head is held with a securing hook in a fixed position to the second hinge part. The securing hook is articulated on the second hinge part and cooperates with a hook projection or a hook entry opening of the hinge suction carrier. The safety hook has a control edge. Against the control edge, a control shoulder, in particular a clutch cylinder occur when the energy storage is triggered. The clutch cylinder, which is fixedly connected to the push rod, can be connected via a slot with the hinge carrier. The slot can be penetrated by a bolt connected to a clip.

embodiments The invention is illustrated by the attached drawings:

1 shows the hinge assembly in a first embodiment in a perspective view, in the normal position in a closed, not shown flap,

2 shows the first embodiment in the direction of II 1 .

3 shows a plan view of the first embodiment according to the viewing direction III in 2 .

4 a sectional view of the first embodiment according to the line IV-IV in 2 .

5 shows a bottom view of the first embodiment according to the viewing direction V in 2 .

6 shows a similar representation as 2 , but in the swung-open state,

7 shows a view according to 2 but in the raised position in which the pyrotechnic energy accumulator is extended,

8th shows a plan view of the first embodiment according to the viewing direction VIII in 7 .

9 shows a second embodiment, which 2 is shown in the closed position,

10 the second embodiment according to the 7 shown,

11 a third embodiment of the hinge assembly according to the 2 and 9 shown in the closed position,

12 the third embodiment in the open position according to the 7 and 10 .

13 a section according to the viewing direction XIII 12 .

14 shows a fourth embodiment enlarged in section in the perspective view,

15 shows the fourth embodiment in section according to the 4 .

16 shows a plan view of the second hinge part according to the viewing direction XVI in 15 .

17 shows a section of the fifth embodiment in the region of the plunger head,

18 shows a similar representation as 17 However, the sixth embodiment is shown here,

19 also shows a similar representation as 17 and 18 but with the seventh embodiment,

20 shows a plan view according to the viewing direction XX in 19 .

21 shows a similar representation as 4 however, the eighth embodiment is shown here as the ram is fixed in position in the cylinder,

22 shows a ninth embodiment where an eruption in the region of the plunger head is shown with a not yet mounted energy storage,

23 shows a similar representation as 22 , but here the energy store is mounted,

24 shows the ninth embodiment in the spaced position,

25 shows a tenth embodiment similar to the representation as in 22 .

26 shows a similar representation as 23 .

27 shows an outbreak according to the section line XXVII-XXVII in 26 .

28 shows an outbreak according to the section line XXVIII-XXVIII in 26 .

29 shows a similar representation as in 24 .

30 shows an eleventh embodiment in the similar representation as in the 23 and 26 .

31 shows a section along the section line XXXI-XXXI in 30 .

32 shows a twelfth embodiment similar to 30 .

33 shows a thirteenth embodiment similar to the 30 .

34 shows a fourteenth embodiment in perspective in the basic position in a closed, not shown flap,

35 shows a plan view according to the viewing direction XXXV 34 .

36 shows a view according to the viewing direction XXXVI 35 the view being partially in section with non-coupled energy storage,

37 shows a section along the line XXXVII-XXXVII 36 .

38 shows a similar representation as 36 , but without breakout with coupled energy storage,

39 shows a similar representation as 38 but with an outbreak, which clarifies the intermediate position,

40 shows the hinge arrangement in the distance position,

41 shows a fifteenth embodiment, wherein only the second hinge part is shown, which consists of a steel body and a plastic sheath,

42 shows the steel body of the hinge part,

43 shows a sixteenth embodiment, wherein also only the second hinge part is shown,

44 a seventeenth embodiment in a raised position,

45 a following view of the seventeenth embodiment, in which by lifting the first hinge part of the or an engine hood not shown with the first hinge part, the head is moved back to its original position,

46 an eighteenth embodiment in the raised position, in which the tension element is formed by a handlebar,

47 a nineteenth embodiment in the basic position and

48 the nineteenth embodiment with raised first hinge part or at raised connected to the first hinge part hood.

in the The following text will illustrate the invention with reference to several embodiments explained.

The first embodiment of the hinge assembly 1 is determined by the 1 to 8th explained. 1 shows a perspective view of the hinge assembly 1 , which is designed here as Einelenkscharnier. The hinge arrangement 1 consists essentially of four basic elements. From a first hinge part 2 , from a second hinge part 3 , from a power storage 4 , which in all embodiments, a pyrotechnic cylinder 4 ' is, and from a handlebar 5 , The energy storage 4 can also be designed differently. For example, it can be provided that the force for expelling the plunger 18 out of the cylinder 4 ' can be applied by a prestressed compression spring.

The first hinge part 2 is an angled sheet metal part. The upper angled surface 6 of first hinge part 2 serves to attach a bonnet, not shown here. The lower angled surface 7 makes a catch hook 8th out. The one end 9 of the first hinge part 2 is at the pestle head 10 hinged. The joint 11 between the first hinge part 2 and the plunger head 10 makes a bolt 12 ,

The second hinge part 3 is also an angle sheet. The second hinge part 3 has a breakthrough 13 on, through which the fishing hook 8th of the first hinge part 2 can pass through. As in 2 can be seen has this breakthrough 13 at the right free end of a projection 14 , Furthermore, the second hinge part forms 3 a pan 15 out. This serves to the plunger head 10 in the basic position in his position to fix. The plunger head 10 has at the lower end a bearing profile section 16 on. This can be designed as a dome or truncated cone. Accordingly, the bearing cup 15 of the second hinge part 3 designed so that it is the counterpart of the bearing profile section 16 of the plunger head 10 forms. By this positive connection is the plunger head 10 fixed in the basic position.

The second hinge part 3 has an opening 17 on, through which the pestle 18 of the energy store 4 can pass through. This opening 17 sits down in a fallback slot 19 away, in which the pestle 18 can move freely during extension.

At the joint 11 is also a handlebar 5 hinged. In the end of the arm 20 of the handlebar 5 there is a longitudinal slot 21 , With this longitudinal slot 21 is the handlebar 5 on the second hinge part 3 hinged. This pivot point 22 is through a pivot pin 23 formed, the end with the second hinge part 3 connected is.

So that the plunger head 10 not unintentionally out of the bearing cup 15 can exit, is located below the second hinge part 3 a compression spring 24 , This is made of a spring steel strip, which is bent in a U-shape such that the free ends of the two U-legs rest on each other, so that overall the shape of an O is given. The O has an elongated shape, with a broad side at the bottom of the second hinge part 3 and the opposite broad side on the edge of the cylinder 4 ' of the energy store 4 supported. This pressure spring 24 forms locking projections 25 out. The locking projections 25 lay each in the basic position in a locking recess 26 of the second hinge part 3 one. At the bottom of the compression spring 24 There are also further locking projections 27 , This can be done in 2 see. The locking projections 27 at the bottom of the compression spring 24 each in a recess 28 a bowl 29 which is from the above-mentioned end of the cylinder 4 ' is trained.

In 4 you can see that at the bottom of the energy storage 4 another point of articulation 30 located. With a clamping element 31 becomes the energy storage 4 either on the body or on an extension 32 extending from the second hinge part 3 extends, fixes. The tensioning element 31 furthermore forms an eccentric 33 out.

The feather 24 has the job, the plunger head 10 with its bearing profile section 16 in the pan 15 to pull, so that the plunger head 10 associated hinge eye as rigid as possible with the second hinge part 3 connected is. In the basic position of the plunger head 10 like a feast with the second hinge part 3 connected element act. The spring force can not only by a pulling force on the plunger head 10 be applied, it is also possible the plunger head 10 from above to act on a compression spring or by a between the cylinder 4 ' and the underside of the second hinge part 3 arranged wedge to apply the tension. Optionally, this spring or wedge may even be omitted when applied to the cylinder 4 ' a sufficiently high tensile force is applied. Condition for this, however, is that the plunger 18 in the basic position firmly enough with the cylinder 4 ' connected is.

The second embodiment of the hinge assembly 1 is determined by the 9 and 10 further explained. In this embodiment, the handlebar 5 and the second hinge part 3 designed differently. The longitudinal slot 34 has on its longitudinal wall 35 several locking recesses 36 on. The second hinge part 3 forms an extension 37 out by a compression spring 38 is held. When extending the force accumulator 4 becomes the handlebar 5 from the compression spring 38 applied. As a result, the pivot pin slides 23 always at the of the locking recesses 36 formed contour line of a longitudinal wall 35 along. Since the the locking recesses 36 forming teeth are sawtooth-shaped, forming the locking recesses 36 Rückdrücksperrungen the spent in an inclined position handlebar 5 ,

The third embodiment will be described with reference to FIG 11 to 13 explained. Also, this embodiment does not deviate greatly from those described above. In 11 you can see that on the broadside of the handlebar 5 a sawtooth profiling 39 has been incorporated. At the bearing point 22 there is a pivot lever 40 , This pivoting lever 40 forms the matching counter profile 41 to the sawtooth profile 39 out. Will the handlebar 5 when extending the ram 18 out of the cylinder 4 ' spent in the skew, so slide the slopes of the sawtooth profiles 39 . 41 against each other and form one Return lock. By pivoting the pivot lever 40 can the interlocking sawtooth profiles 39 . 41 be brought out of the profile intervention. The bearing of the pivot lever 40 and the course of the counterprofile 41 in relation to the course of the sawtooth profile 39 is chosen so that the profiles 39 . 41 by pivoting the pivot lever 40 can be disengaged. In the drawings, this is shown only schematically.

That in the 14 to 16 illustrated fourth embodiment is similar to the first embodiment, however, with the difference that the second hinge part 3 something is shaped differently. In 14 you can see that the bearing profile section 16 of the plunger head 10 also here in a Lagerpfanne 15 rests. Here is the pan 15 through tongues 42 educated. These tongues 42 were bent so that they are in the direction of the energy store 4 create a tapered profile. Accordingly, the bearing profile section 16 of the plunger head 10 formed like a truncated pyramid.

In all embodiments, the energy storage is 4 in the basic position both in the raised position substantially perpendicular to the hood plane.

At the in 17 illustrated fifth embodiment, only the difference from the first embodiment, that in the transition region from the plunger head 10 to the push rod 18 a predetermined bending point 43 is incorporated.

18 shows the sixth embodiment, wherein the first hinge part 2 another embodiment in the region of the joint 11 having. Instead of a normal bore has the first hinge part 2 at the joint 11 a slot 44 , this has constrictions on its parallel walls 45 on. By this constriction 45 it is achieved that the bolt 12 is fixed in position in area A or in area B of the first hinge part.

19 illustrates a seventh embodiment. Here is in the first hinge part 2 for the purpose of parallel displacement, a set folding zone 46 incorporated. This runs approximately parallel to the axis of symmetry of the energy storage 4 ,

In the 21 the eighth embodiment is shown, such as the plunger 18 in the cylinder 4 ' can fix in his position. Below the box 29 of the cylinder 4 ' is a plastic or metal ring 47 arranged. This has a lead 48 on. This engages in the annular groove 49 of the plunger 18 one. This positive locking prevents the plunger 18 without triggering the trigger changes its position.

In the 22 to 24 the ninth embodiment is shown. This embodiment differs from the preceding in that the plunger head 10 at its lower end a circumferential bead 50 having. This is made by a holding means 51 flashed. In this embodiment, the holding means 51 around a retaining clip 52 , The retaining clip 52 has two legs 53 . 54 , The thigh 53 has an angling 55 on, and the thigh 54 has a latching projection 56 on. So that the retaining clip 52 the bead 50 of the plunger head 10 is about the left half of the retaining clip 52 until the end of the thigh 53 through a longitudinal slot 57 divided in half. By this fork-shaped design of the leg 53 it is only achieved that the retaining clip 52 around the plunger head 10 can be put around.

To the plunger head 10 with the help of the retaining clip 52 in the bearing pan 15 of the second hinge part 3 to fix, owns the second hinge part 3 outbreaks 58 , Through these outbreaks 58 become the thighs 53 . 54 through put. By the bend 55 and the locking projection 56 is in interaction with the outbreaks 58 the anchorage 59 educated. The anchorage 59 is designed to trigger the energy storage 4 is resolved.

The hinge arrangement 1 points between the free end of the push rod 18 and the plunger head 10 a screw connection 60 on. The screw connection 60 is by an external thread 61 that is on the pushrod 18 located, and with a matching internal thread 62 in the ram head 10 educated.

The tenth embodiment will be described with reference to 25 to 29 shown. Also in this embodiment, the plunger head 10 with the help of a holding agent 51 on the second hinge part 3 held. Here is the holding means 51 through a pot-shaped body 63 educated. On the cup-shaped body 63 There are several tongues at its lower end 64 This can be done in the 28 and 29 see. The cup-shaped body 63 sits at an area of the plunger head 10 , the cup-shaped body 63 adapted to its shape.

The tongues 64 of the cup-shaped body 63 protrude through suitable openings 65 of the second hinge part 3 therethrough. Because the tongues 64 are longer than the thickness of the sheet of the second hinge part 3 , the ends of the tongues can 64 with a riveting method with the second hinge part 3 get connected. Through the connection of the cup-shaped body 63 with the second hinge part 3 becomes the plunger head 10 in the bearing pan 15 held. Also in this embodiment, the rivet connection dissolves when the energy storage 4 is triggered.

The plunger head 10 and the pushrod 18 be through a plug connection 66 connected with each other. In this embodiment, the connector 66 a bayonet lock.

In the 30 and 31 the eleventh embodiment is illustrated. Again, the plunger head 10 through a pot-shaped body 63 on the second hinge part 3 held. Also possesses the pot-shaped body 63 tongues 64 , The tongues 64 are bent so that they are parallel to the surface of the second hinge part 3 run. In each case there is an outbreak 73 through which an extension 74 , the second hinge part 3 , protrudes. By riveting the cup-shaped body 63 on the second hinge part 3 becomes the bearing profile section 16 in the bearing pan 15 fixed.

In this embodiment, the plunger head 10 and the energy storage 4 also by a plug connection 66 connected. The pestle 18 is fork-shaped in its free end and has a hole there 67 , The plunger head 10 has a bridge in its lower end 68 also with a hole 69 is provided. Around the pushrod 18 with the plunger head 10 To connect is through the holes 67 . 69 a bolt 70 through put. This one is through a clip 71 fixed in his position. The clip 71 has the shape of a circular ring cutout. This is in 31 to see. The clip 71 is stuck with the bolt 70 connected so that through the bracket of the clip 71 , the bolt 70 not from the hole 67 . 69 can slip out.

32 shows the twelfth embodiment. This is very similar to tithing. There is only the difference between the two embodiments that instead of a screw connection 60 here also a plug connection 66 as used in the eleventh embodiment.

The thirteenth embodiment will be described with reference to FIG 33 shown. Here, the difference to the twelfth embodiment is only that the plunger head 10 has another shape and thus an additional retaining means 51 becomes unnecessary. The plunger head 10 has an extension 72 on. This runs parallel to the surface of the second hinge part 3 , The extension 72 indicates an outbreak 73 on. Through this outbreak 73 an extension protrudes 74 of the second hinge part 3 therethrough. The plunger head 10 and the second hinge part 3 are linked together by one expression.

In the tenth to thirteenth embodiments, the holding means 51 or the plunger head 10 even so with the second hinge part 3 connected to these compounds when triggering the energy storage 4 solve and extend the ram 18 allow.

The following mode of action occurs:
In 2 the first embodiment is shown in the basic position. Here you can see that the first hinge part 2 and the second hinge part 3 are arranged parallel to each other. This corresponds to a closed flap, in particular bonnet. In the case of a "frontal crash", the flap or bonnet is pushed in its direction of extension. This can lead to a parallel shift. Occurs the parallel displacement between the first hinge part 2 and the second hinge part 3 on, so the catch hooks under 8th the lead 14 of the second hinge part 3 ,

This will prevent the energy storage 4 can ascend into the elevated position. This also ensures that the flap does not come off the hinge side of the body.

In 6 is the hinge arrangement 1 how it behaves when only the bonnet is opened. In this case, only the first hinge part pivots 2 around the joint 11 ,

In 7 is the hinge arrangement 1 with an extended energy storage 4 shown. The first hinge part 2 and the second hinge part 3 are also almost parallel again. Here you can also see that the handlebars 5 such on the second hinge part 3 and at the pestle head 10 hinged is that he the energy storage 4 stabilized against pivoting.

In 8th you can see how the pestle 18 in the alternative slot 19 as a result of the pivotal movement of the hood has shifted to its lock-side center of gravity.

The pestle 18 of the energy store 4 is fixed in position in the raised position and in the retracted position by a frictional or positive fit. This frictional or positive connection is when unloading the energy storage 4 canceled. For the purpose of repositioning the plunger 18 in the basic position, the frictional or positive locking can be canceled even in the extended position. The positive connection in the basic position, for example, by a flanging on the cylinder 4 ' be caused. This is not shown in the drawings.

In 9 is the second embodiment in the basic position. In this position is the ram head carrying the flap hinge 10 integral part of the second firmly bolted to the body hinge part 3 ,

If the impact of a pedestrian is reported in this position via a trigger or the like, the pyrotechnic charge of the force accumulator is generated by a control device, not shown 4 ignited. Suddenly the pestle enters 18 out of the cylinder 4 ' , wherein the above-mentioned positive locking is released. The bonnet swings into a gap distance position to the underlying units, so that the hood can give in on the impact of the pedestrian on her. Measures can be taken that affect the pestle 18 hold in the extended position. In general, however, it may be sufficient that the above-described latching mechanisms of the handlebar 5 with the second hinge part 3 suffice. When extending the force accumulator 4 becomes the handlebar 5 so from the compression spring 38 acted upon that the latching recess 36 the pivot pin 23 embraces.

The operation of the third embodiment is similar to the preceding. So that the hinge arrangement 1 can shift into the raised position, the pivot lever must 40 have the right rotational position. Then the sawtooth profile 39 with the counter profile 41 engage. For the purpose of the rearward displacement of the hood from the raised position (as in 12 is shown), you can the pivot lever 40 swing back and then move the hood back to the starting position. This is the push rod 18 back to the cylinder 4 ' pushed.

The embodiments described above are characterized by constructive simplicity. That from the two at the pestle head 10 hinged parts hinged together 2 . 3 existing hinge can be easily attached to a body. It is also possible the upper hinge part 2 first to attach to the hood, then the hood with the body on the plunger head 10 to hinge. The construction of the bearing of the plunger head has a particularly advantageous effect here 10 or their bondage with a handlebar 5 from, as a result of a certain torsional strength of the plunger head 10 with respect to the second hinge part 3 given is.

The incorporated predetermined bending point 43 in the fifth embodiment allows the first hinge part 2 and the second hinge part 3 to make a parallel shift. Through this predetermined bending point 43 can the plunger head 10 give way to the parallel shift and so can the fishing hook 8th under the lead 14 intervention.

The operation of the sixth embodiment is similar to the previous one, but the parallel displacement is made possible by other means. Again, the parallel displacement between the two hinge parts 2 and 3 to allow was in the first hinge part 2 a slot 44 incorporated. This will be the bolt 12 of the plunger head 10 guided. So that this is fixed in its position, has the slot 44 on both sides parallel opposite constrictions 45 , Through these constrictions 45 it is achieved that the bolt 12 is fixed in the basic position in the area A. However, in a crash, the bolt 12 pressed through the constricted area and then fixed in area B in its position.

The operation of the seventh embodiment will be described with reference to 19 and 20 shown. So that the two hinge parts 2 and 3 can exert a parallel displacement against each other, located in the first hinge part 2 a desired folding zone 46 , This runs so that in a crash, the first hinge part 2 at the desired folding zone 46 can dive together.

By the embodiments 5 to 7 will be achieved that the two hinge parts 2 . 3 in a parallel shift against each other have a possibility of evasion. This makes sense, so that, for example, the second hinge part 3 is not torn out of the anchorage to the body of the vehicle and thereby even greater damage could occur.

By otherwise designing the second hinge part 3 is the operation similar to that described in the first embodiment. Again, the plunger head 10 through a storage pan 15 fixed in its basic position in its position.

In the eighth embodiment, the plastic or metal ring is used 47 that reaches the plunger 18 is fixed in its position. When extending the ram 18 , from the cylinder 4 ' becomes the lead 48 repressed. This is only possible if the ring 47 made of a softer material than the plunger 18 itself. If it is an elastic material, the ring can 47 after pushing in the pestle 18 back into the ring groove 49 step inside and fix it again. So after a single release of the energy storage 4 the ring 47 not to be changed.

The operation of the embodiments nine through thirteen are substantially the same. In these embodiments, first, the hinge assembly 1 without the energy storage 4 to be assembled. This is useful because the energy storage 4 during the painting process should not be painted with. By the plug or screw connection 60 . 66 ensures that the energy storage 4 then with the plunger head 10 can be firmly connected. Thus, during the painting process, the flap can be used functionally, without the energy storage 4 already been installed.

Based on 34 to 40 the fourteenth embodiment is shown in more detail. The previously used reference numbers will continue to be used for the same parts. In essence, this embodiment differs from those described above only in how the head 10 is fixed in his position. The head 10 is by a holding element 75 fixed. This has the shape of a retaining sleeve 76 on. The retaining sleeve 76 is bent from a sheet metal strip, which looks like a big C in the plan view. The lateral opening of the retaining sleeve 76 forms an alternative opening 77 for the head 10 or the plunger after triggering. The retaining sleeve 76 is, for example, on the second hinge part 3 welded.

Due to the narrow design of the head 10 this additionally requires a fixing element 78 to put in the retaining sleeve 76 to be firmly fixed. The head 10 is with the second hinge part 3 positively and frictionally connected. In this embodiment, the head 10 as a hinge carrier 79 designed. The hinge carrier 79 is in the lower part of the in the retaining sleeve 76 stuck fixing element 78 umragt. The hinge carrier 79 protrudes through the retaining sleeve 76 and the second hinge part 3 , In 36 you can see that the hinge carrier 79 at its lower end a coupling hole 80 having. Through this is the formed by a flat piece Hülieraugenträger 79 with a lifting guide 81 coupled. The coupling hole 80 has the shape of a slot, which in the axial direction of the Hülieraugenträgers 79 runs.

The hinge carrier 79 that from the head 10 is formed, can form-fitting and / or frictionally engaged with the second hinge part 3 be connected. In this embodiment, this has been solved by a positive connection. The hinge carrier 79 is complete with the fixing element 78 through a safety hook 82 in the retaining sleeve 76 held. The safety hook 82 is at its lower end on a bearing block 83 hinged. This is also like the retaining sleeve 76 made of a sheet metal and with the second hinge part 3 For example, have been connected by welding. A the safety hook 82 piercing bolt 84 from the camp stand 83 goes out forms the point of articulation for the safety hook 82 , At the the hinged suction gir 79 facing side of the safety hook 82 there is a control edge 85 , This is through a nose-like projection 86 educated. At the upper end of the safety hook 82 is a catch hook 87 formed with undercut catcher shoulder. This fishing hook 87 engages in a tailor-made catching section 88 of the hinge suction carrier 79 one. Thus the safety hook 82 not accidentally escape from this position, this is by a leg torsion spring 89 applied. The one leg 89 ' rests on the bearing block 83 from. The other thigh 89 '' is on the safety hook 82 hinged.

The lifting guide 81 is done with the help of a coupling sleeve 90 with the hinge carrier 79 connected. The coupling sleeve 90 sits at the top of the pestle 18 the lifting guide 81 , As in 37 can be seen, is the Hinge carrier 79 including the fixing element 78 in the opening 91 the coupling sleeve 90 introduced. The coupling sleeve 90 has a bore extending transversely to the ram axis 92 on. The coupling sleeve 90 and the hinge carrier 79 be as previously described in the eleventh embodiment (s. 31 ) with a plug connection 66 connected with each other.

The fifteenth embodiment will be described with reference to FIG 41 shown. Here is the second hinge part 3 from a steel body 93 which is plastic-coated. The plastic casing 94 forms the retaining element 75 out. In 42 is the steel body 93 to see. Here you can also see that the bearing block 83 from the steel body 93 is trained.

The sixteenth embodiment will be described with reference to FIG 43 explained. Here is the entire second hinge part 3 from a plastic-sprayed part. Here is the holding element 75 and the bearing block 83 integrated.

The operation of the fourteenth embodiment is similar to those described above. By triggering the lifting guide 81 What is, for example, controlled by a sensor, is the first time the coupling sleeve by the permissible relative movement relative to the hinge suction carrier 79 against the control edge 85 of the safety hook 82 applied. The relative movement between the hinge carrier 79 and the coupling sleeve 90 is only possible because the coupling hole 80 has the shape of a long hole. As in 38 can be seen, is the bolt 70 the connector 66 in the lower area C of the coupling hole 80 , First, the bolt 70 the possibility in the coupling hole 80 in the area D to proceed. Through this travel is the safety hook 82 through the coupling sleeve 90 from the catch section 88 against the force of the torsion spring 89 also controlled. Only now, as in 40 shown, the hinge assembly 1 moved to the distance position. Through the thigh torsion spring 89 is now also the safety hook 82 has been moved back to its basic position. It is possible the hinge arrangement 1 to shift back to the starting position, and through the safety hook 82 this will be kept in its basic position again.

The fifteenth embodiment is characterized in that the second hinge part 3 through a steel body 93 is formed. This is also protected by a plastic sheath 94 molded. This plastic casing 94 also has the advantage of being the retaining element 75 formed. For example, the retaining element must 75 no longer with the second hinge part 3 be welded. Through the plastic coating 94 is the steel body 93 protected against external influences.

The sixteenth embodiment is designed very inexpensive, since the second hinge part 3 consists of a plastic injection molded part. Here are the holding element 75 and the bearing block 83 summarized in one part. This eliminates the welding and assembly time, otherwise for the assembly of the second hinge part 3 with the holding element 75 and the bearing block 83 is needed.

That in the 44 and 45 illustrated seventeenth embodiment corresponds substantially to that in the 34 to 40 illustrated fourteenth embodiment, therefore, in terms of the trigger mechanism and the design of the head 10 is referred to the local execution.

Essential in the seventeenth embodiment is a tension element 95 , which is designed there as a rope. This rope is with its first end 95 ' on the second hinge part ( 3 ) attached. The attachment point 95 ' is adjacent to the head 10 , The second end 95 '' of the rope 95 is at the free end of the first hinge part 2 hinged. The rope 95 has a length such that the hinge can be properly opened and closed in the home position. A bonnet attached to a bodywork with the hinge part can thus be opened and closed. In the open position, the rope can 95 tighten.

In addition, this embodiment still has a handlebar 5 whose function has already been described above. Again, the handlebar has a longitudinal slot 21 for a storage point 22 , New compared to the embodiments described above is arranged in the longitudinal slot compression spring 96 that is a pressure piece 96 ' against the bearing point 22 suppressed. In the basic position is the compression spring 96 curious; excited.

In the in 44 shown raised position with the front flap closed is the rope 95 almost tense. Starting from this position, the first hinge part 2 opposite the head 10 pivoted, so with the hinge part 2 opened bonnet open, so then in We kung passing lever forces have the consequence that the first hinge part 2 around the point of articulation 95 '' pans until the head 10 back in his from the holding element 75 formed holder is shifted back. The catch hook can hook in the manner described above, so that a reversibility is given. This is particularly advantageous when the energy storage is a spring energy storage, since then again a fully functional starting position is reached.

At the in 46 illustrated eighteenth embodiment, the tension element is designed as a sheet metal part. The tension element 95 is a handlebar. Again, there are the articulation points 95 ' . 95 '' in the areas on the second hinge part 3 or first hinge part 2 as already described with respect to the seventeenth embodiment. Here has the tension element 95 a longitudinal slot 95 ''' in which one on the second hinge part 3 solid pin can run. The mode of action corresponds to that described above. There are also other designs of tension elements 95 possible. Thus, the tension element may be formed by a chain or a multi-joint handlebar assembly.

In the in the 47 to 48 described nineteenth embodiment is the tension element 95 designed as a rope. There it is on a storage drum 97 wound. The winding takes place by the force of a spring. The fixed to the winding drum articulation point 95 '' moves when opening the flap or when moving the head in the raised position to a stop position.

Variants of the above-described embodiments are also possible with the following known technical details:
Other ways of designing the hinge assembly 1 will be in the DE 10343106.3 described. Here, for example, it is proposed to provide the Explosionsein direction with several individual charges. Thus, after a single release of the pyrotechnic cylinder, the next pyrotechnic charge can be used. It is also possible that the release plunger actuates a trigger for a force storage. This would have the advantage that a lower dosage of individual charges would be necessary.

In the DE 10346397.6 It is proposed to give the trigger by a triggering mechanism. The trigger can be through an electric motor, a memory wire, a pyrotechnic charge or activated by triggering an energy storage, which are controlled by a sensor.

In the DE 10305329.8 It is proposed that the hinge and the lifting module consists of two separate assemblies. This gives the possibility that even when painting the hood is functional. Thus, the lifting module is not polluted when painted by the Lackierstaub.

In the DE 102004017958 is used to trigger the force accumulator, a module having an electric motor with a cam carrier, which then controls a trigger member axially. Between the motor shaft and the cam carrier is a freewheel gear. Each time the car is started, a function test can be carried out so that the trigger element does not extend. This is done by the electric motor against the freewheel gear rotates in the opposite direction. This ensures that the cam carrier is not taken and does not extend the release plunger. It is also proposed that delayed release of the combustion gases from the discharge chamber of the pyrotechnic element, the restoring device can not be directly effective.

In the DE 10111146.0 It is proposed that the energy accumulator after release is not fully relaxed, so that the flap can deform and thereby creates an additional damping. Additional deformation elements in the bonnet also dampen the impact.

All disclosed features are (for itself) essential to the invention. In the disclosure of the application will hereby also the disclosure content of the associated / attached priority documents (Copy of the advance notice) fully included, too for the purpose, features of these documents in claims present Registration with.

Claims (56)

Hinge arrangement ( 1 ) for a swing-open flap on a motor vehicle, in particular for a bonnet, with a hinged to the flap first hinge part ( 2 ) and to be attached to the body second hinge part ( 3 ), wherein the second hinge part ( 3 ) by unloading an energy store ( 4 ) from a basic position to a raised position from the first hinge part ( 2 ) is spaced and the energy storage ( 4 ) acts on a lifting guide on her head ( 10 ) a joint ( 11 ), wherein the head ( 10 ) is raised during unloading, and the first hinge part ( 2 ) at the joint ( 11 ) of the head is hinged, characterized in that in the basic position on the second hinge part ( 3 ) fixed in position head ( 10 ) forms the pivot point of a Einelenkscharniers. Hinge arrangement, according to claim 1 or in particular according thereto, characterized in that the lifting guide consists of a cylinder (in 4 ' ) plugging plunger ( 18 ), which plunger ( 18 ) from the energy store ( 4 ) is displaceable. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the head ( 10 ) is assigned to the push rod fixed or detachable. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the second hinge part ( 3 ) a bearing cup ( 15 ) formed in a bearing profile section ( 16 ) Of the head ( 10 ) is present. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the head ( 10 ) against the second hinge part ( 3 ) is spring-loaded. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the head ( 10 ) against the second hinge part ( 3 ) spring acting on the head ( 10 ) or between a second hinge part ( 3 ) and cylinders ( 4 ' ) arranged compression spring ( 24 ). Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the compression spring ( 24 ) Latching projections ( 25 ), which in locking recesses ( 26 ) on the underside of the second hinge part ( 3 ) intervene. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the free end of the cylinder ( 4 ' ) fixed to the body or an extension ( 32 ) of the second hinge part ( 3 ) connected is. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the connection between the free end of the cylinder ( 4 ' ) and the body or extension ( 32 ) of the second hinge part ( 3 ) a tensioning element ( 31 ). Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the tensioning element ( 31 ) an eccentric ( 33 ) trains. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the bearing profile section ( 16 ) Of the head ( 10 ) a dome, a truncated cone or another, in the direction of the cylinder ( 4 ' ) is tapered profile and the bearing cup ( 15 ) of the second hinge part ( 3 ) forms a shape-adapted trough. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by one of the push rod ( 18 ) through opening ( 17 ) of the bearing cup ( 15 ), with the opening ( 17 ) an alternate slot ( 19 ), in which the push rod ( 18 ) when lifting the flap, in particular the hood can enter when it pivots about a bearing point remote from the hinge, in particular a lock. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by a hinge at the hinge point ( 11 ) Of the head ( 10 ) articulated handlebars ( 5 ), which is longitudinally displaceable with one end at a bearing point ( 22 ) of the second hinge part ( 3 ) is articulated. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the handlebar ( 5 ) on the second hinge part ( 3 ) is hinged, that in the raised position the energy storage ( 4 ) stabilized against pivoting. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by in the region of the articulation point of the link ( 5 ) on the handlebar ( 5 ) and on the second hinge part ( 3 ) provided sawtooth profiles ( 39 ) engaging in the raised position. Hinge arrangement according to one or more of previous claims or in particular according thereto, characterized in that the sawtooth engagement for the purpose of relocation the flap from the raised position in the basic position can be canceled is. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by a in the region of the articulation point of the handlebar ( 5 ) on the second hinge part ( 3 ), with sawtooth profiling ( 39 ) provided pivoting lever ( 40 ), for the purpose of Aufhubs the sawtooth engagement between the handlebar ( 5 ) and levers ( 40 ) is pivotable. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the handlebar ( 5 ) with a longitudinal slot ( 34 ) on the second hinge part ( 3 ) is articulated, wherein a longitudinal wall ( 35 ) of the longitudinal slot ( 34 ) Locking recesses ( 36 ) has for latching with the hinge pin ( 23 ). Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by one on the first hinge part ( 2 ) arranged catch hooks ( 8th ) and a second hinge part ( 3 ) associated projection ( 14 ), which from the catch hook ( 8th ) in a parallel displacement of the first hinge part ( 2 ) relative to the second hinge part ( 3 ) will undertake. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the energy accumulator ( 4 ) has one or more pyrotechnic elements, wherein the pyrotechnic element after triggering the plunger ( 18 ) out of the cylinder ( 4 ' ) drives. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the energy accumulator ( 4 ) has a preloaded compression spring, which relaxes controlled by a trigger to the head ( 10 ) to shift to the raised position. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the plunger ( 18 ) by friction or by a while unloading the energy storage ( 4 ) releasable positive locking fixed in the cylinder ( 4 ' ) is held. Hinge arrangement according to one or more of previous claims or in particular according thereto, characterized in that the form-fitting holder a flanging is. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the form-fitting holder one inside the cylinder ( 4 ' ) arranged plastic or metal ring ( 47 ) having an inward-facing projection ( 48 ), which in an annular groove ( 49 ) of the push rod ( 18 ) intervenes. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the handlebar ( 5 ) a longitudinal slot ( 21 ), in which a pivot pin ( 23 ) of the second hinge partly ( 3 ) intervenes. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the plunger ( 18 ) in the raised position frictionally or positively fixed in position in the cylinder ( 4 ' ), wherein the frictional or positive connection for the backward displacement of the plunger ( 18 ) can be canceled in the basic position. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the cylinder ( 4 ' ) protrudes substantially perpendicularly from the valve plane both in the basic position and in the raised position. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by a predetermined bending point which bends in the "crash" (FIG. 43 ) in the transition region from the head ( 10 ) to the push rod ( 18 ). Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the hinge pin ( 12 ) of the ram head joint ( 11 ) in one a constriction ( 45 ) having long hole ( 44 ) is present. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by a desired folding zone ( 46 ) in the first hinge part ( 2 ). Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by an intermediate cylinder ( 4 ' ) and underside of the second hinge part ( 3 ), a tension applying wedge. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the hinge arrangement ( 1 ) initially without energy storage ( 4 ) is mountable and the energy storage ( 4 ) is mountable at a later date. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by a screw ( 60 ) or plug connection ( 66 ) between the free end of the push rod ( 18 ) and the plunger head ( 10 ). Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by that of the push rod ( 18 ) dissolved head ( 10 ) on the second hinge part ( 3 ) retaining means ( 51 ). Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the holding means ( 51 ) a retaining clip ( 52 ), the subregions of the head ( 10 ) and which on the second hinge part ( 3 ), the anchoring ( 59 ) when triggering the energy store ( 4 ) is resolved. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the holding means ( 51 ) a pot-shaped body ( 63 ) formed with the second hinge part ( 3 ) is releasably connected. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the holding means ( 51 ) with the second hinge part ( 3 ) are riveted. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the head ( 10 ) positively and / or frictionally engaged with the second hinge part ( 3 ) connected is. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by a on the second hinge part ( 3 ) fixedly arranged holding element ( 75 ), in particular in the form of a retaining sleeve ( 76 ) for fixing the position of the head ( 10 ). Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by a in the retaining sleeve ( 76 ) fixing element ( 78 ). Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by one of the fixing element ( 78 ) fixed hinge carrier ( 79 ), which with the lifting guide ( 81 ) is detachable. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the hinge carrier ( 79 ) the retaining sleeve ( 76 ) and / or the second hinge part ( 3 ). Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the hinge carrier ( 79 ) by means of a security hook ( 82 ) in the retaining sleeve ( 76 ) is held. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the securing hook ( 82 ) when triggering the energy store ( 4 ) is moved to a release position. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the lifting guide ( 81 ) with a coupling part ( 90 ) with the hinge carrier ( 79 ) is connectable. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the connection between the hinge suction carrier ( 79 ) and lifting guide ( 81 ) has an axial movement play for displacing the securing hook ( 82 ) in the release position. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by a lifting guide ( 81 ) associated coupling sleeve ( 90 ) with movement play with the hinge carrier ( 79 ) is coupled and the coupling sleeve ( 90 ) in its relative movement relative to the hinge carrier ( 79 ) by applying a control edge ( 85 ) of the safety hook ( 82 ) The latter pivoted into its release position. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the retaining sleeve ( 76 ) of one with the second hinge part ( 3 ) firmly connected metal strip is formed, the a gap-open enclosure for the fixing ( 78 ) trains. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the fixing element ( 78 ) is a plastic part, which form filling in the substantially C-shaped outline contour retaining sleeve ( 76 ) is present. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the second hinge part ( 3 ) of a steel body ( 93 ), which is plastic-molded, wherein in particular a holding element ( 75 ) for the head ( 10 ) is formed by the plastic extrusion. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the second hinge part ( 3 ) and the retaining element ( 75 ) consist of a part that is made of plastic. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by a first hinge part ( 2 ) and the second hinge part ( 3 ) interconnecting tension element ( 95 ), which with its first ( 95 ' ) on the second hinge part ( 3 ) and with its second end ( 95 '' ) on the first hinge part ( 2 ) is mounted, that starting from the displaced into the raised position first hinge part ( 2 ) a pivoting of the second hinge part ( 2 ) around its pivot point on the head ( 10 ) a backward displacement of the head ( 10 ) to the second hinge part ( 3 ) he follows. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the tension element is a cable which, close to the plunger head ( 10 ) on the second hinge part ( 3 ) and in the region of the free end on the first hinge part ( 2 ) is articulated. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the tension element ( 95 ) is a handlebar which is variable in length at the hinge parts ( 2 . 3 ) is articulated. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized in that the tension element ( 95 ) forming handlebars a slot ( 95 ''' ), to which the articulation point ( 95 ' ) assigned. Hinge arrangement according to one or more of the preceding claims or in particular according thereto, characterized by a particularly the second hinge part ( 3 ) associated storage drum ( 97 ), on which the tension element formed by a rope ( 95 ) is wound by the force of a coil spring.