ES2237880T3 - TORSION BAR CLOSURE, ESPECIALLY FOR ROTATING DOORS OF CAR STRUCTURES. - Google Patents

Abstract

The closure lever (9) has a built-on counter stop (16) on a baseplate (10), and the rotary bar closure has a stop catch (15) in the closure lever which engages behind a counter stop (16) in the closed state. The stop catch operates a further engagement catch (17), which also engages behind the counter stop in the closed state. The stop catch and the engagement catch pivot in opposite directions around rotary axes (19,20) into the release position. The engagement catch has an operating section (22), which is arranged beneath the release section (21) of the stop catch.

Description

Torsion bar closure, especially for revolving doors of car structures.

The invention relates to a bar closure of torsion, especially for rotating bars of structures cars, with a closing lever and with a fixed opposite seal in the structure in a base plate, in which in the lever of closure is arranged a locking ratchet, which hooks behind of the opposite seal in the closed state.

It is known through the German utility model DE-GM 94 19 874 a torsion bar closure of this type. The torsion bar closure shown there provides for a locking ratchet that collaborates with the opposite seal. This is under spring load in the direction of the closing position and it can rotate to a release position through the application of a pressure on a firing section accessible to this respect. In this last position, the closing lever is prepared for unlocking the closing lever housed in the revolving door.

Torsions conditioned by gait, especially of large structures and, therefore, the relative movements related to them, even if they are reduced between the base plate and the closing lever that sits on the revolving doors can damage the locking hitch.

The purpose of the invention is to raise the safety of use of torsion bar closures of the type indicated at first.

This task is solved first and an essential way in a torsion bar closure with the characteristics of claim 1, it being established that the locking ratchet activates another insert ratchet, whose insert ratchet engages in the closed state of it way behind the opposite catch.

As a consequence of such configuration, achieves a torsion bar closure with high safety of use. Double security is achieved, which acts in practice as a fork latch. But the activation is done through a single piece, namely the ratchet lock. The latter acts on the same sense about the insertion ratchet added. In this case, the locking ratchet and the insert ratchet are rotated in the opposite direction around an axis of rotation respective to the release position. From the point of view of construction, in this way it is achieved with simple means that the ratchet of insertion present an activation section, which is arranged below a trigger section of the locking ratchet. Here it is sufficient in practice a locking ratchet surface placed in an accessible way, about the size of a fingertip. In addition, the invention presents the proposal that the axes of rotation, differ in height in relation to a plane of stop, on the side of the structure, of the base plate of the closure of torsion bars This leads to a more closing radius arc. small relative to the nearest axis of rotation. In addition, you can Better get a hook type hook. Instead, with with respect to the locking ratchet, there is a closing bow radially greater, which allows a lateral overlap on the retainer opposite. From the point of view of construction, we proceed to such purpose in particular so that the opposite seal presents in one side, in a preferred way for collaboration with the ratchet lock, a collar that extends in the direction of the extension of the rotating lever, as blocking projection. In change, the opposite seal has on the other side, in a way preferred for collaboration with the insert ratchet, a collar, which extends at an acute angle to the direction of extension of the rotating lever, like blocking projection. In Correspondingly, the insert ratchet has a blocking flank that is at the same acute angle. Further, the insertion ratchet is intended to be loaded with a spring in the closed position. The spring that provides the drive corresponding, it is a torsion leg spring with union of U-clamp configured between two spiral sections. This There is in practice a double spring, which provides the maintenance of the intended spring effect, despite the eventual spring break. The arrangement of the spring arms it is such that the U clamp acts as a spring arm on the ratchet insert. Specifically this is configured in such a way that the spring force acts on the activation section of the double-arm set ratchet insert. The insurance of torsion bar closure is still set in the direction that a conformation is configured on the closing lever three-dimensional, in which a cam cam fits placement, formed by an opposite conformation of the plate base. This alignment aid preserves the closing elements of the torsion bar closure. The opposite conformation is enhanced in a corresponding measure. In addition, the invention provides the proposal that the three-dimensional conformation is configured in pyramid trunk shape, such that the conformation presents a flat view of trapezoid shape with narrowing directed towards the head of the closing lever. The insertion of opposite union achieved in this way absorbs forces excessive that occur conditioned by the operation, avoiding in this way a movement of the closing lever during the march. In addition, the invention still provides the proposal that on the rotating lever, a hole is configured that is associated with a fixing recess in the base plate. Further, you can set a centering point that is advantageous for the mounting. In this way, the correct support is generally provided of torsion bar closure hardware.

Next, the invention proposes a closure of torsion bars, especially for revolving doors of car structures with a torsion bar, in which the Torsion bar closure features a latch, which fits into a closing hole of a lower part of the opposite closure, of such so that the latch is inserted vertically up into the closing hole with a free movement space. This way, in the case of door arching forces, it does not occur a latch interlock on the opposite closure part; for him on the contrary, the revolving doors resting on the hinges in the side of the structure can be opened rather conveniently with the activation of the closing lever.

In such a torsion bar closure, in which, in addition, an upper closing part is provided opposite with accommodation bag, in which a latch fits rotating top, it has also been revealed that it is favorable that the rotating latch will penetrate the housing bag with a space motion free vertically down. Here you get the action also described for this closing body of the closing of torsion bars In general, the space of game.

The intended action is optimized because the swivel latch penetrates vertically up into the bag additionally opposed upper closure housing also with a free movement space. The problem posed is takes this way into account in any direction, that is, against the torsions of the door, the same as the retractions, intrados loads of revolving doors and reductions of the length of the torsion bar that are produced in this way conditioned by the arch. In the framework of safety of use intended for torsion bar closures of the type indicated by In principle, a development measure is configured in such a way that the latch latch is configured as hammer head. A T-shaped closure organ of this type offers a fixation vertical on an even larger and even balanced surface. In this case, with respect to the opposite closure piece, comes from such that the opposite upper closure piece presents in a side a housing bag as a closing hole for one of the sides of the hammerhead swivel latch and on the other side one entrance open forward to the other side of the swivel latch. In this open entrance away from the surface a corresponding side of the latch is inserted from the door rotary.

The object of the invention with the help of an exemplary embodiment illustrated in the drawings. In this case:

Figure 1 shows a view of a door Two-leaf swivel of a car structure with several torsion bar closures.

Figure 2 shows the area of the renvalso of the revolving doors with two torsion bar closures associated in opposite way.

Figure 3 shows a bar closure of torsion with base plate in one view, and specifically in the state closed.

Figure 4 shows the section according to the line IV-IV in figure 3, with closing cylinder represented of the type of dotted lines and dashes.

Figure 5 shows the closing of bars of torsion in representation as in figure 4, but during activation of the locking ratchet and with the insert ratchet It opens at the same time this way.

Figure 6 shows this situation under the activation of the closing lever in the direction of opening.

Figure 7 shows the opening activation in the advanced stadium, with the locking ratchet released and with the placement cam out of order.

Figure 8 shows the closing lever in individual representation

Figure 9 shows the section according to the line IX-IX in Figure 8.

Figure 10 shows the locking ratchet and the spring ratchet insert loading in the direction of your basic position in individual representation in perspective.

Figure 11 shows in a partially view fragmented, a variant of the torsion bar closure, here a closure of this type in the transition zone of one of a door rotating towards the longitudinal side wall of the structure of the vehicle.

Figure 12 shows a top plan view on opposite closure pieces placed by pairs of the closure of modified torsion bars, which receives the rotating latch of the type of hammerhead.

Figure 13 shows a horizontal section a through the area of the closing levers that are placed under and its opposite closure pieces on the bottom side, and in concrete in the closed state.

Figure 14 shows a top plan view on the rotating screw head latch in representation individual.

Figure 15 shows the latch latch of hammerhead as an enlarged fragment of figure 11.

Figure 16 shows the latch of the locking system in coupling with the opposite closure piece lower, in the same way as an enlargement of figure 11.

In figure 1 it is represented in a type of lines of dots and strokes only the back of a structure of car 1. In this way, the closed cargo space is accessible, controlled through a double leaf door, whose Two revolving doors bear the reference sign 2.

The two doors 2 are hinged on the transition zone towards the longitudinal walls of the structure of the car 1. It is placed several hinges 3, four to both sides.

For closing and opening the doors 2 swivel serve torsion bar closures 4. Components of they are torsion bars 5 that cross, guided in a way rotating, vertically the leaves of the revolving doors. These torsion bars pass in the area of the roof 6 of the structure from car 1 to a respective rotating latch 7. This latch swivel is axially mounted with torsion bar 5 and fits with closing effect on a housing bag 8 in the part upper on the front side of the car structure 1. The Rotary activation is achieved through a locking lever 9 It forms a crank. The closing lever is seated, placed a slightly deeper than the bottom of loading, at the lower end of said torsion bar 5 and is housed in the closed state in a base plate 100 placed there, closely leaning to the side rear.

As can be deduced, for example, from Figure 4, the head of the closing lever 11 is mounted axially with the torsion bar 5. Said head 11 is extended by a latch 12. The latter collaborates with a closing hole 13 in the base plate 10. The closing lever 9 can be moved out of the active lock position through the application of a traction at the far end of the head 11, which forms a grip crank 14. This is carried out by means of a separation of latch 12 with respect to the bottom of the side of the closure hole structure 13 and through release out of it.

The safety means on the side of the lever closure is a retaining element in the form of a locking ratchet 15 profile type hammer head. The ratchet lock collaborates with an opposite seal 16 configured on the base plate 10 and stationary this way.

In the area of influence of the locking ratchet 15 is a second retaining element in the form of another locking ratchet, represented as insert ratchet 17.

Both locking ratchet 15 and also the insert ratchet 17 hook behind the opposite retainer 16 in the state of closing (figure 4), acting in the same way as fork latch. The opposite seal 16 is made as T-shaped piston at the bottom. The rib of the T that points to the side of the structure has a fixing hole 18 for a retaining screw Instead, the arms of the T meet clearly distanced from the front wall of the structure of the car 1, so that they can be hooked on or behind by means of the locking ratchet 15 or the ratchet of insert 17 for the application of the lock or for the assurance

This locking ratchet 15 is housed around an axis of vertical rotation 19 in the mounting position. The insertion ratchet 17 instead rotates around an axis of own turn, designated with 20. Both axes of rotation 19, 20 are extend in this way in spatial parallelism to the geometric axis of torsion bar 5.

Rotating attachment of the insert ratchet 17 is carried out through the locking ratchet 15. On the sides of the locking ratchet 15 a firing section 21 is arranged that causes torsion. This shooting section works as a key oscillating Its activation surface with external side pressure It is about the size of the barren finger.

During unlocking, an activation section 22 of the insert ratchet 17 acts as a torsion receptor. This insert ratchet is, seen from the outside, below the lower side of the firing section 21 and, so so much, in the actuation area of the locking ratchet 15 that Apply the drive.

The locking ratchet 15 and the insert ratchet 17 are positioned in relation to the rotating shafts such that through the corresponding stops they are not in a position to exit outside their reciprocal actuation zone. A stop in this respect, made on the closing lever 9, is designated with 23. A projection of the locking ratchet 15 which is configured in the form of a hammer head acts against it. But also the lower side of the stop 23 serves as a lock and in particular in the opposite direction, a protrusion 24 of the locking ratchet 15 engaging against it. Reference is made in this regard to Figure 7. The inner distance between the inner side of the boss 24 and the lower flank of said projection in the form of a hammerhead is adapted to the areas of the required angle of rotation of the ratchets
15, 17.

As can be deduced from the representations in section of the torsion bar closure 4, the pivot shafts 19, 20 adopt, with respect to a stop plane E-E, on the structure side, of the base plate of the structure of the car 1, different distances in terms of the height. The pivot shaft 20 of the insert ratchet 17 is is closest to said E-E stop plane.

The pivot shaft 19 of the locking ratchet 15, which adopts, instead, a greater distance, causes its other projection of the type of hammerhead, which is directed towards the opposite seal 16, slide down and up in a greater measurement laterally from the opposite retainer 16 in an arc of major radius Instead, the head of the insert ratchet 17, which It is kept within a shorter radius, it carries out a movement greater than the type of rotary latch. The head is set, as you can recognize, hook-shaped and collaborates in hook of the type of recess with the opposite seal 16. The tensile action in the crank handle 14 only leads to a hitch even more sure. Instead, the release requires the shot volunteer stressed through locking ratchet 15. To such Finally, the arms of the T of the opposite seal 16 are also aligned in a different way. In one case, in this respect, such that the opposite retainer 16 presents on one side in a manner preferred for collaboration with the locking ratchet 15 a colare 25, which extends in the direction of the extension of the lock lever 9 rotatably housed (i.e. depressed position of the closing lever), as a projection of blocking.

Instead, the opposite seal 16 has on the other side in a preferred way for collaboration with the ratchet of insertion 17 a collar 26, which extends at an acute angle with with respect to the direction of the extension of the rotating lever, as a locking projection that hooks back in the form of a hook. He corresponding locking flank 27 of the ratchet hook insertion 17 adopts developments that are at the same angle acute. The blocking flank 27 may adopt, as shown, also a lightweight arc development, with radius towards the axis of rotation twenty.

The locking ratchet 15 and the ratchet of insert 17 are loaded with spring in the direction of the closing position of torsion bar closure 4 (see the Figures 4 and 7). A spring 28 is used in the form of a spring spinning legs This pier is housed in the intermediate zone of anyway present of the two ratchets 15, 17 acting in opposite way. The intermediate zone thus forms a chamber spring on purpose outward, covered with the effect of protection especially by trigger section 21 of the blade type and also still for a part of the activation section 22.

Spring 28, still reproduced isolated in figure 10, it consists of two sections of spiral 29 axially spaced, which are placed coaxial. The extreme turns of sections 29 of dock 28, which are placed closer to each other, they are at the junction of U clamp. The U-shaped clamp bears the sign of reference 30. It forms a central arm of the spring, so to speak a double arm It loads the activation section 22 of the ratchet of insertion 17.

The two final turns that are in the outside of the spiral sections 29 extend from it way in a respective spring arm. These spring arms are designated 31. The spring 28 is prestressed.

The activation section 22 of the ratchet insertion 17, which contributes in the same way to the formation of a double lever, is slightly curved in the shape of a sickle. This leads to a sliding support towards the firing section 21 of the locking ratchet 15, which loads the activation section. By On the other hand, there is a suitable housing cavity for the U rib of the U-shaped clamp 30.

The spring fixing bracket 28 is performed under the use of the rotation axis 19. The latter it crosses the spiral sections 29 of the package type of winding In the case of a spring break, it remains, without However, the functional capacity of torsion bar closure 4 with respect to the double security achieved. Side surface support of activation section 22 is in this respect a preferred way wider than the length of the rib of the U of the U-shaped clamp 30. The other arms 31 of a leg of the spring 31 finds its backrest on the inner side lowered of the rotary closing lever 9. The back support in this respect It is designated with 32.

The base plate 10 and the closing lever 9, which it is inserted in it in the closed state, they are joined together centered, avoiding relative displacements. This lace partial takes place in the area of the head 11 of the lever closure 9. The closing lever 9 is configured in this respect a three-dimensional conformation 33. In this conformation a opposite conformation 34 exposed. This is done as a section of the deep drawing type of the base plate 10. The opposite conformation (34) forms a positioning cam of the type of mountain formed by horizontal layers. The opposite conformation 34 configured enhanced has a lower height than the shaping depth 33, measured in the direction of the immersion extension, so that the flanks are taken into account of the two divergent elements towards the base plate 10. Of a preferred way, the bottom of the flanks serves as support.

The structure of the pyramid trunk type of conformation 33 and opposite conformation 34, which is obtained at Through divergence, it is irregular in its plan view. From in this way, conformation 33 presents a plan view in trapeze shape. Refer to figure 3. As can be recognized, this plan view narrows in the direction of head 11 of the closing lever 9. The same applies to the positive form of the opposite conformation 34. As a support flank between the two conformations is selected, as stated, the serving flank support. In this way, a free blocking of vibrations

A solution that influences in a favorable way in the assembly it consists in that in the closing lever 9 is configured a hole 37 that is associated with a recess of fixing 36 on the base plate 10. This drill, in the same way that the borehole 37 which also functions as a fixing hole, it is used to adjust the base plate 10 during assembly as proper centering point. An optimal adjustment can be carried out of the elements that form the closure.

A third fixing hole 38 on the plate base 10 is at the height of the closing hole 13, this of such that the necessary accessibility for the screwdriver. In the closed state of the closing lever 9, all fixing means are covered in a way inaccessible by the closing lever 9 that can be locked. A closing cylinder 39 is associated with torsion bar closure 4 in such a way that it engages with its closing cam 40 below the locking ratchet 15 with interlocking effect. Thus, in this position, the locking ratchet 15 cannot be moved as trigger device for release of the fork latch 15/17.

Other means are provided, which are referred to by example to the seal, but they are not explained here yet.

During locking of the closing of bars of torsion 4, the fork latch, directed and centered by the insertion of latch 12 and by insertion of conformation 33 and of the opposite conformation 34, it moves to a suitable position for closing, in which said latch engages behind the retainer opposite 16. In this case, the projection of the head type of hammer, which points in this direction, of the locking ratchet 15 and the hook head of the insert ratchet 17 deviate slightly time against the spring load exerted through the spring 28, and to fit elastically then in the closed position, shown in figure 4, as double safe behind the respective necklaces 25, 26. The lock can be applied again 39/40 which follows from Figure 4 and which is reproduced with dotted lines and strokes.

In summary, it can be established that it is achieved an advantageous double insurance, which can be activated easily and that It does not lose its function either in the case of spring breakage. Thereto the described window of the centering point assembly must be added and high quality security through the formal insertion of the two elements 9, 10 that establish the lever closure.

With the reference sign 35 bags are designated of lace to accommodate the free ends of a spring, retaining the closing lever 9 of the torsion bar closure 4 in a preferred angle of rotation position. This position is fixed in such a way that said closing lever is maintained distant from the plane of the revolving doors 2 so that Can grab well. Latch 12, rather, the head of the latch, remains in this case in the vicinity of the door. This preferred position of the angle of rotation can be saved through elastic recovery in both directions of lever rotation of closing 9. This detail is explained in the model request for German utility 298 13 289 not yet registered. In the publication of the application is included in this way also in full content of the entire German utility model mentioned, too in order to accept features of these documents in claims of the present application. The site symmetrical torsion of the bag fits 35 allows the use of the closing lever to the right / left in the closing of torsion bars.

The development, represented from the figure 11, of the torsion bar closure 4 described above has in principle the same structure and is also coincidence in the as much as possible in terms of structure. The figures of reference is applied in the proper sense, partly without repetitions of the text

In figures 11 and 16 it is now represented also the spring so that it extends beyond the bags of lace 35. It is a rotating leg spring with a winding package 42 multi-step. This last package is it engages on the independent intermediate section of the bar torsion 5 and specifically between the bottom side of the doors swivels 2 and the upper side of the base plate 10. One of the ends of one of the arms of the spring 43, which is angled in spatially parallel to the geometric axis of the torsion bar 5 is seat in the lace bag 35 on the upper side. The end of another arm 44 of the pier 41 fits into a niche 45 open towards under the respective revolving doors 2.

With the view on figure 16, you can recognize in a particularly clear way that latch 12 is insert vertically upwards in the closing hole 13 with a free movement space x. The bottom of the flanks of latch 12 is placed closer to the corresponding part, it is that is, the bottom, of the flanks of the closing hole 13 or well placed in the proximity according to the drawing, but this only in the sense of a guide. This area is not intended for load absorption, since the torsion bar closure 4 is supported to a sufficient extent in terms of the load through the hinges 3 on the revolving doors 3. Therefore, of this The latch 12 and the lower part are not damaged either opposite closure 46.

Under the load that occurs on the doors rotating 2 from the interior space of the structure of the automobile, this load becomes a bending, albeit light, of the torsion bar 5. But this does not lead to an interlocking of the latch 12 on the lower part of opposite closure 46. Instead, there is rather a sufficient deviation space directed towards above.

A comparable mode of action is obtained also in the upper part of opposite closure 47, in which it is configured the fit bag 8 and in which the latch fits top swivel 7. This latch is configured first of such that the rotary latch 7 is inserted vertically towards below in the accommodation bag 8 with a free space of movement and. In the case of the described arcuate flexion of the bar of torque 5, the rotary latch 7 finds a space of sufficient deviation directed downward with respect to the flank of the accommodation bag 8 that is there. This can be deduce clearly from Figure 15. Therefore, neither an interlocking insert occurs here, which makes it difficult to opening, between the swivel latch 7 and the upper part of opposite closure 47.

From this figure 15 it can be deduced also still a development in the sense that the latch swivel 7 is inserted vertically up into the bag housing 8 of the opposite closure upper part 47 also with a space free of movement z. In this way, they not only have take into account the torsions of the door, the conditioned retractions by the temperature, but also the dilations conditioned by temperature. The upper side of the swivel latch 7 can be scroll up, free of interlocking, using the game That exists there. Here just a few millimeters, also in opposite way.

The rotary latch 7 according to the development is configured as a hammer head. The corresponding T-shaped configuration is clearly deduced from Fig. 15. This figure shows in particular that the opposite upper closure piece 47 has on one side, and specifically here again on the left side, as described with with respect to the basic version, a housing bag 8 as a closing hole. This hole is reserved for the entrance of one of the sides 7 'of the rotary latch 7 in the form of a hammer head. It is further represented that the upper part of the opposite closure 47 forms an inlet 48 on the other side, into which the other side 7 '' of the rotary latch 7 in the form of a hammerhead is inserted in the closed position. In the mirror symmetrical position, the free space of movement and vertically downwards as well as the free space of movement z vertically upwards are also taken into account on the right side of the opposite closing piece 47.

During closing, the first 7 'side converging on the surface towards the end free in the same way as swivel hook in the bag 8 housing cover on the front side. The flanks Corresponding housing bag 8 diverge in a way adapted in the opposite direction, that is, towards the torsion bar 5. The other side 7 '' is introduced with the same overlapping effect. way as support cam at entry 48 open down. The entrance opening is away from the door surfaces. The part of the rotary latch 7 that forms the cam converges from the same way towards the free end, diverging in this case the corresponding flanks of the entrance 48 closed on the end side in a way adapted to the torsion bar 5. The free end 7 '' side ends with horizontal play in front of the inner side vertical there from entrance 48; instead the position corresponding housing bag 8 on the other side is left open The cover that closes the housing bag 8 towards in front, that is, that is far from the surface of the door, it is closed over its entire length, as you can recognize, and is rolled up the entrance.

The fixing holes 49 made in this Opposite closure upper part 47 are closed by means of the 7 swivel latch in the form of a hammer head. In this way improper application of a tool is excluded.

Both leaves or sides 7 ', 7' 'of the latch swivel 7 rise inclined in the formation section of the rotating hook or in the section that forms the cam, from the bottom, that is, from the base plate 50 of the upper part of opposite closure 47. This favors the inward rotation of the head of the latch. The symmetrical latch mirror configuration swivel 7 allows to insert it in an optional way with closing effect to the right or to the left. To that end, just turn the bottom plate 50.

Claims (16)

1. Torsion bar closure (4), especially for rotating bars (2) of car structures (1), with a locking lever (9) and with an opposite retainer (16) fixed in the structure on a plate base (10), in which a locking ratchet (15) is arranged on the closing lever (9), which engages behind the opposite retainer (16) in the closed state, characterized in that the locking ratchet (15) activates another ratchet (17), whose ratchet (17) engages in the same way behind the opposite retainer (16) in the closed state, so there is a double lock of the locking lever (9). 2. Torsion bar closure according to claim 1, characterized in that the locking ratchet (15) and the fitting ratchet (17) are rotated in the opposite direction in each case around an axis of rotation (19 or 20) a The position of release. 3. Torsion bar closure according to one or more of the preceding claims, characterized in that the engagement ratchet (17) has an activation section (22), which is arranged below a firing section (21) of the locking ratchet (fifteen). 4. Torsion bar closure according to one or more of the preceding claims, characterized in that the pivot axes (19, 20) are at a different height, relative to a stop plane (EE), on the side of the structure , of the base plate (10) of the torsion bar closure (4). 5. Torsion bar closure according to one or more of the preceding claims, characterized in that the opposite retainer (16) has a collar (25) in a preferred manner in collaboration with the locking ratchet (15), which extends in the direction of the extension of the closing lever (9) as a locking projection. 6. Torsion bar closure according to one or more of the preceding claims, characterized in that the opposite retainer (16) has a collar (26) on the other side in a preferred manner for collaboration with the input ratchet (17), which extends at an acute angle with respect to the direction of the extension of the rotating lever (9), as a locking projection. 7. Torsion bar closure according to one or more of the preceding claims, characterized in that the engaging ratchet (17) has a locking flank (27) that is at the same acute angle with respect to the collar (26). 8. Torsion bar closure according to one or more of the preceding claims, characterized in that the engagement ratchet (17) is spring loaded in the closed position. 9. Torsion bar closure according to one or more of the preceding claims, characterized in that the spring (28) is a torsion leg spring with a U-clamp connection configured between two spiral sections (29). 10. Torsion bar closure according to one or more of the preceding claims, characterized in that the U-clamp (30) acts as spring legs on the insertion ratchet (17). 11. Torsion bar closure according to one or more of the preceding claims, characterized in that the force of the spring acts on the activation section (22) of the insertion ratchet (17) configured with two arms. 12. Torsion bar closure according to one or more of the preceding claims, characterized in that a three-dimensional conformation (33) is configured in the closing lever (33), in which a position cam is fitted, with centering effect, formed by an opposite conformation (34) of the base plate (10). 13. Torsion bar closure according to one or more of the preceding claims, characterized in that the opposite conformation (34) is
enhanced. 14. Torsion bar closure according to one or more of the preceding claims, characterized in that the three-dimensional conformation (33) is configured as a pyramid trunk. 15. Torsion bar closure according to one or more of the preceding claims, characterized in that the conformation (33) has a trapezoidal plan view with narrowing directed towards the head of the closing lever (11). 16. Torsion bar closure according to one or more of the preceding claims, characterized in that in the closing lever (9), associated with a fixing recess (36), a hole (37) is configured in the base plate ( 10).