DOOR STOP INTEGRATED INTO AN ENGINE VEHICLE DOOR HINGE
FIELD OF THE INVENTION. The invention relates to a door stop which is integrated in a motor vehicle door hinge and which is structurally combined with a door hinge, comprising a first hinge half which can act on the part of a door assembly , door or door pillar and a second hinge half which can act on the other part of the door assembly and comprise a radially projecting fitting element, which is subjected to tension by a torsion bar spring which is supported by a secure way to rotate on one of the two hinge halves and is formed by a torsion spring bar and also includes a counter-bearing which is arranged in a fixed manner on to another hinge half and has fitting marks arranged one together to the other. BACKGROUND OF THE INVENTION. Door stops with a torsion bar that are structurally combined with a motor vehicle door hinge are known in a multiplicity of modalities where the modalities that are frequently known share the characteristics of a torsion bar spring as can be seen for example in US-A 3 820 192 comprises a spring bar that is bent once or a certain number of times and one end of which serves as a support for the straight central region or shaft part of the spring of the torsion bar in one of the two halves of the hinge and whose other arm serves as the loading arm for the lacy member of the spring loaded door fastener. In the case of the door retention that is used here, as an example and is presented in the aforementioned US-A 3 820 192, the torsion bar spring is formed by an elastic steel bar that is bent in the form of a C, being supported by means of its extreme bent portion at a distance from its rectilinear part in one half of the hinge and with its other bent end portion supporting a fitting element which is supported on the torsion bar spring in a manner such that it can rotate about the stem portion of the spring and is provided with snap marks and that a counter-support roller is assigned which can rotate about a support pin parallel to the axis of the hinge. The door stops of this type of construction characterized basically by the use of a bent plastic spring bar and respectively of its particular design the disadvantage that the mounting or support on a special rectilinear rod part which is subject to distortion during the operation on one half of the hinge requires particular measures in order that even after a relatively long working time the production of noise within the hinge or the door stop is prevented. In addition, these known torsion bar door stops have the disadvantage that the use of an elastic bar that is bent at one or both ends, as required by the torsion bar, requires a comparatively large installation space in the hinge region of the body of the vehicle, even if the two ends of the spring or spring bar are bent in the same direction, since the arm of the torsion bar spring supporting the fitting element has to be assigned to a guide on the end side of one of the fins of the hinge. In addition, in all door stops with this type of construction, the fitting element and the sausage are placed basically on one end side of the door hinge, which results in an additional increase in the installation space that is requires, also in the axial direction. In another door stop which is presented in EP-A 0 600 226, and is connected to a door hinge, the torsion bar spring of the door stop is formed by a straight torsion spring bar, which is arranged aligned at least substantially parallel to the hinge axis of the door in a hinge half and which is supported at one of its ends in a manner secure to rotation in the hinge half and is connected in the region of its other end of the hinge. a secure way to rotate to a fitting element that projects radially, in addition, it is provided in particular for the torsion spring bar, together with the rotational safety support and the fitting element, and optionally with a guide for the fitting element which fits like a constructive unit preassembled in a sleeve. Although such a design of the door stop removes a considerable part of the disadvantages of the torsion bar door stop of the known construction type and that has been mentioned above, it still requires a considerable amount of space and is associated with a great expense in production and thus, can only be used under very specific spatial conditions in the hinge region of a vehicle body. SUMMARY OF THE INVENTION. The object of the invention is to provide a torsion bar door stop that can be integrated into a motor vehicle door hinge and that this door stop is designed in such a way that it can be produced with a technical and financial expense that is so small as possible, the requirements for the installation space being as low as possible, both for the stop device itself, and for the hinge provided with the door stop as an assembly and with noise-free operation that Be assured even after a long period of operation. This object is achieved by a door stop having the features of claim 1. The radial support of the locking element allows the use of a spring bar that is exclusively subjected to torsional stresses and is therefore shorter and thinner , which in turn makes the same possible for the stop device, which comprises the spring bar and the locking element, being of a small design despite applying sufficient braking and holding forces and in spite of ensuring a virtually functional operation free of play and noise. Therefore, in particular, the stop device can be installed in the hinge fin of a hinge half in which case, it is provided that a chamber is left free in one half of the hinge, which chamber accommodates the interlock element being aligned parallel to the hinge axis and joins at least in part of its height in the gudgeon hole whose one wall essentially lies opposite the hinge pin and has the contour of an outer cylindrical surface and forms a bearing bearing for the interlock element . Such complete accommodation of the part subjected to stress of the spring, inside a hinge half first ensures a very small design of the door stop itself and also opens other design possibilities of the stop device which makes it extremely easy to install, in particular, on the one hand with respect to an extensive use of longitudinal sections of a profiled material and on the other hand with respect to an assembly simplified by a simple sliding from one to the other, between the components of the top of the door. In a preferred design of a door hinge provided with an integrated torsion bar door stop, it is further provided that the locking element together with the torsion bar spring, assigned thereto, is arranged in the hinge half in where the hinge pin is accommodated with a ride adjustment and extends over part of the height of this hinge half, the interlocking formation which is disposed on the hinge pin, extending away from the outer end joint surface of said hinge pin. half hinge. In a longitudinal section of the hinge pin, section corresponding to part of the height of this hinge half. In such a design, it is advantageously further provided that the locking element fits into a part of the hinge half projecting upwards on the hinge half assembly on the hinge pin. The interlocking formation of the hinge pin means that the latter has a relatively complex construction and is complicated in its production. This also gives object, to the task of designing the hinge pin in such a way that the interlocks can be formed and the hinge pin produced in a simple manner in terms of manufacture. This task is achieved by a door stop having the features of claim 16. This will be discussed in detail below with the description of Figure 5. The use of sections of profiled material for the preparation of the parts of the interlocking device, it is made possible by the fact that the locking element has either a cross-section shape of essentially pear-shaped profile, and the torsion spring bar which forms the torsion bar spring comes through a hole in the bulged part of the profiled form of the locking element, or by the fact that the locking element has an essentially arc-shaped cross-section shape and the torsion spring bar forming the torsion bar spring it passes through a hole in the end of the arc shape which is at least, partially cylindrical, ends having an enlarged diameter. In conjunction with the locking element formed in such a manner by a longitudinal section of a profiled material, for example an extrusion-shaped material, it can furthermore be provided that the locking arrangement on the hinge pin is arranged on the outer circumference of a hub. which is connected to the hinge pin in a secure manner to the rotation by means of an internal circumferential profiling and a longitudinal section of the hinge pin stem, section which is profiled in a manner complementary to the aforementioned profiling, in such a manner that the interlocking bushing can also be formed from a longitudinal section of a profiled material. In a form of shaping the chamber that is formed within the hinge half and accommodates the torsion bar spring and the locking element, the bulged portion of the pear-shaped shaped cross-sectional shape is provided, or the at least partially cylindrical end of the arc shape of the interlocking element whose end has the enlarged diameter, is provided with a partially circular cylindrical surface which is parallel to the hinge pin, forming a support surface and is assigned as a bearing support a complementary drainage surface within the recess of the hinge half. In this embodiment of the chamber, the retaining device comprises the torsion bar spring and the locking element and can be installed from an end side of the hinge half, for which purpose the chamber accommodating the locking element is then provided. is closed with respect to the upper end seal surface of the hinge half, accommodating it by means of a closure plate. In a second embodiment of the chamber that is formed within one of the hinge halves and accommodates the torsion bar spring and the locking element, it is provided that a locking part, which mating of a chamber is radially aligned, with with respect to the hinge pin and accommodates the locking element, in the hinge fin, and has a step-shaped design and its lower region successively limits part of the recess accommodating the torsion spring bar that forms the torsion bar spring and forms one half of the rotational safety grip of the torsion spring bar, forming the torsion bar spring, in the middle of the hinge. In conjunction with the use of such closure piece in a chamber that is designed so that it opens outwards and serves to accommodate the retaining device, advantageously it is further provided that the support bearing formed in half shell, and coordinated to the element interlocking, is formed on a shell-shaped bearing surface, formed on a closing part, which engages in a radially open chamber with respect to the hinge pin in the hinge fin of one of the halves of the hinge. However, in general, independently of the individual conformation of the chamber receiving the stop device in which a hinge half is provided, that the torsion spring bar forming the turn bar spring receives by means of a part of its total length in a recess of one of the halves of the hinge and securely protected against rotation at one end and by means of a second part of its total length, is received in a bore in the locking element and at its other end it is securely connected to the rotation with the locking element. In contrast to the individual configuration of the own abutment device, it can also be provided that the locking member is supported by means of a frictionally connected intermediate sliding disk on the chamber coordinated thereto after a limiting wall part of the closure part .
An advantageous embodiment can also be provided because, the end acting in conjunction with the locking arrangement on the hinge pin, is a rotatable needle that forms the gripping part of the locking member, where in conjunction with these measures it is also provided preferably that the interlocking recess is formed by semi-round radial depressions in the locking bushing placed on the hinge pin. DESCRIPTION OF THE DRAWINGS. The invention is described in individual embodiments in the following description, with reference to the drawings, in the drawing shows the
FIGURE 1, a sectional representation of a first embodiment of a motor vehicle door hinge provided with an integrated torsion bar door stop. FIGURE 2 shows a cut through the motor vehicle door hinge, according to Figure 1. FIGURE 3 shows a sectional illustration of another embodiment of a motor vehicle door hinge provided with a stopper of integrated torsion bar door;
FIGURE 4 shows a cut through the motor vehicle door hinge according to Figure 3, FIGURE 5 shows a hinge pin installed in a cut-away and perspective representation. DESCRIPTION OF THE INVENTION. The motor vehicle door hinges illustrated in the exemplary embodiments and provided with an integrated torsion bar door stop comprise a first hinge half 1 which can act on a part of the door assembly and is formed by a properly machined longitudinal section, of a hinge profile, and a second hinge half 2 which is likewise formed of a longitudinal section of a hinge profile and has an essentially flat abutment surface 3 and a hinge pin 4 which joins in The hinge halves 1 and 2 are articulated in both embodiments. In both embodiments, the stop device of the torsion bar door fastener consists of a torsion spring bar 5, a locking element 6 and an interlock formation disposed adjacent to the torsion bar. hinge pin 4. In both illustrated embodiments, the torsion spring bar 5 is provided at both ends with a widening of diameter and in the region thereof with a corresponding circumferential profiling in the form of peripheral corrugations 8 or 9. In both illustrated embodiments, the spring torsion bar 5 is connected to the locking element 6 in a secure manner to the rotation by means of the circumferential undulation 8 which is disposed at its upper end and is in engagement with complementary internal profiling. At the same time it fits over the rest of its height in a recess of the type of hole 10 in the interlocking element 6. In addition both modalities that are illustrated in the exemplary embodiment, share the feature that the retaining device comprising the bar of the torsion spring 5 and the locking element 6 is arranged in the hinge half 1 in which the hinge pin 4 is mounted with a running adjustment, the locking formation 7, which is arranged in the hinge pin 4 , is formed as a locking bushing 11, and has interlocks 12 formed by groove-shaped depressions having a cross section of semicircular profile. The locking bushing 11 is connected to the hinge pin 4 in a secure manner to the rotation by means of projections 14 and depressions arranged in an alternating manner and on the rod part 13 of the hinge pin 4. Finally, in both illustrated embodiments, the end portion of the interlocking element that interacts with the interlocks 12 of the locking bushing 11 is in each case formed by a needle 15 that is rotatably mounted on the locking element 6. A chamber 16 that remains free on the hinge half 1 and open on the side of the hinge pin opens into a hinge eye bore 17, is assigned in each case to accommodate the locking element 6 and the torsion spring bar 5. In the embodiment illustrated in FIGS. 1 and 2 a closure piece 18 is inserted in the chamber 16 having a design in the shape of step and in its lower region has a hole 19 in which the torsion spring bar 5 is partially accommodated and fixed at its lower end in a rotationally secure manner by means of its circumferential undulation 9. In its upper region the closure 18 has a semi-cylindrical support surface forming a support bearing 20 for the locking element 6, in which, in the embodiment shown in FIGS. 1 and 2, it has a cross-sectional shape with a pear-shaped profile, and it is supported by its bulged part 21 which is of a partially cylindrical design on the support bearing 20. The closure part 18 is fixed in the chamber 16 by means of a bolt 22 which is simply shown to to illustration. The locking element 6 is supported here on the stepped shoulder of the closing piece 18 by means of a sliding support disk 28. In the embodiment illustrated in FIGS. 3 and 4 the camera 16 is designed so that it opens towards the upper end seal surface 23 of a hinge half 1 and when the door stop unit is adjusted, it is closed by a closure plate 24. The torsion spring rod 5 is accommodated here in its inner length section of a contact-free manner in a blind hole 25 that extends through the chamber 16 and is fixed in the lower part of the blind hole 25 in a secure manner to the rotation by means of the circumferential corrugation 9 formed at its lower end. In this embodiment, the interlocking element has an arc-shaped design and is provided at its lower end with an enlargement 26 that is at least partially cylindrical and through which a hole 10 passes, accommodating the upper elongated region of the part. of torsion spring 5 in a contact-free manner, and with its cylindrical outer surface supports a wall region of chamber 16, region having a partially cylindrical design in a complementary manner, to form a bearing bearing 27, with respect to its cross-sectional shape, the chamber 16 has a design corresponding to the arc shape of the locking element 6. The locking element 6 is here supported on the recess bottom of the chamber 16 by means of a sliding support disc 28. Fig. 5 illustrates a hinge pin 4 having an outer bushing 11, Fig. 5a and 5b illustrate two different sections through the hinge pin 4 that is illustrated in perspective in Figure 5c and the illustrations in Figure 5a and 5b further differ from the Figure 5a shows a bushing divided axially into three sections and Figure 5b shows a bushing 11 divided axially into two sections. The structured hinge pin 4 illustrated in FIG. 5 makes it possible in an advantageous manner to configure the different parts of the hinge pin 4 and the hub 11 in terms of its material quality and / or its processing state and its material properties to correspond to the profile required in particular. The outer contour may also have a corresponding design in each case. In the cross-sectional part of Figures 5a and 5b, the locking marks 12 formed, for example, on the outer circumference of the hub 11 are illustrated. If the interlocking marks are only required on a part of the axial extension of the bushing, the bushing can be divided in such a way that the bushing section having the interlocking marks is separated from the remaining bushing section without marks of the interlock. Greater differentiation characteristics of the bushing sections or between the core of the hinge pin and the outer bushing, may reside in the hardened or hardened, in the surface treatment, such as a sliding coating or corrosion protection or in the quality of material that is suitable, for example to be produced by exclusion or by sintering. The secure connection to the rotation of the hinge pin core and the outer bushing can take place by means of corresponding profiles formed in a complementary manner on the outer circumference of the hinge pin core and in a complementary manner on the inner circumference of the bushing . Estor profiles can be uniform in the circumferential direction, for example in the form of hexagonal structures as illustrated in figure 5a, or also in the form of triangular or quadrilateral profiles. If the profiles are designed in such a way that they are not uniform in the circumferential direction, so for example that a corner has been omitted in each case on a structure having six corners or on the structure having four or three corners, this profile design It also offers the advantage of providing installation assistance to assemble the parts at the correct angle. Apart from the positive locking connection, there is also the possibility of a non-positive connection of the core of the hinge pin and of the hub, for example, by shrinkage or a material locking connection, such as hard or soft welding or joining. LIST OF REFERENCE NAMES
1 HALF HINGE 2 HALF HINGE 3 STEM SURFACE 4 HINGE PIN 5 TORSION SPRING BAR 6 INTERLOCKING ELEMENT 7 LINK FORMATION 8 ROLLING CIRCUMFERENCE 9 CIRCUMFERENCE WAVING 10 HOLE TYPE RECESSING 11 HUB LOCKING, BUSHING 12 ENCLAVAMIENTOS, BRAND LOCKING 13 VASTAGO PART 14 PROJECTIONS 15 NEEDLE 16 CHAMBER 17 HINGE EYE PERFORATION 18 CLOSING PIECE 19 HOLE SUPPORT BEARING BULL PART OF THE INTERLOCKING ELEMENT 6 BOLT EXTREME GASKET CLOSURE PLATE BLIND HOLE DRILLING BEARING SUPPORT BEARING SLIDING SUPPORT DISC.