VEHICLE DOOR FIXER FIELD OF THE INVENTION: The invention relates to a motor vehicle door fastener, consisting of a first part that acts on a door, door or door frame arrangement part, and a second part Applicable to another part of door arrangement, where between both parts at least a braking and restraint body is arranged which is actuated by a loading spring stopped and supported on one of the two parts, and where one of the two parts is formed by an element provided movably relative to the other part and provided with braking ramps or fitting marks acting with the braking and holding body and they are distributed according to the desired door retention positions. BACKGROUND OF THE INVENTION In a first known form of construction of such vehicle door fasteners is a braking and retaining body which cooperates with the braking and retaining marks made in a door retention bar, and constructed as a roller or cylinder, mounted on a retainer movably disposed in a retention box formed by the molded sheet part, and the retainer is actuated by means of a loading spring with sufficient force for the required or desired braking and holding drive of the fastener of the In another known embodiment of a door fastener is used for braking and fixing in position of the door in one or more positions of predetermined opening by a common direct action of a loading spring especially with a segment of lace or something Similary. In a third known embodiment of door fasteners of the aforementioned type of construction is the braking body (s) and retainers which act in conjunction with a door retention bar or the like, slidably received in a retention box and forced into the direction of displacement by the force of a loading spring towards retainers constructed in the form of a sliding piece. Regardless of which of the embodiments of a door fastener, which, of course, can only be indicated here schematically, in the door fastener, its working method can always be the objective, that the door when reaching at least one opening angle Predated brake is stopped and maintained, regardless of whether the vehicle is in an absolutely flat floor or on a floor with a more or less large slope, for which the strength of its load spring has to be calibrated, as understands immediately.
When measuring the force of the braking or retaining body of the door fastener exerted by the loading spring, it must be observed that after reaching a sufficient holding force by the door fastener, the door must be able to move, when applying the vehicle user a corresponding force, from the position of opening that has been established. With this are the limits within which within which the capacity of the relatively narrow loading spring varies, so that no play space is present in practice to observe additions of unfavorable tolerances or weakening of material in its quality with surface roughness and the like in a series production in which there are deviations resulting from braking oscillations and retention of the door fastener by the calibration of the loading spring SUMMARY OF THE INVENTION: The invention proposes the basic task of improving a door fastener of the type of construction mentioned, in such a way that a subsequent equalization of the braking and holding oscillations or a subsequent variation of the acting spring load on the braking and holding body is possible, without thereby incurring or the construction volume of the door lock is increased.
This task is then solved starting from a door fixator of the species described at the beginning according to the invention essentially because, in the part that retains the loading spring that works together directly or indirectly on one side with the braking and holding body, a variable support is formed in position for the loading spring. The invention thus proposes, for the individual shaping and determination of the door fastener, in general the subsequent presumption of a variation of the pre-tension of the loading spring in the event that the spring tension indicated as a standard in a production in series does not satisfy the placement of the braking and holding forces desired in the individual case. The assumption of the necessary further improvement of the spring tension of the loading spring of the individual door fasteners is advantageously carried out for the purpose pursued in the context of the necessary final control of the product, where the shaping according to the invention of a variable support in position acts favorably on an existing molded part in such a way that for a subsequent adjustment of the tension of the spring is easy to be caused and on the other hand the possibility of a subsequent adjustment of the tension of the spring possible without any additional constructive part. In a particularly preferred embodiment of the invention, it is provided that the loading spring on one side has a support arm and on the other hand a loading arm, and that the variable support in the position constructed on that retensioning part is adjustable with respect to the support arm of the loading spring, where the part having the loading spring advantageously is formed by a sheet-molded part, and the support coordinated to the supporting arm of the loading spring, is advantageously formed for the purpose that is pursued by a zone or region that remains deformable from that part molded into sheet. In an individual configuration that facilitates the realization of a subsequent adjustment of the tensioning of the loading spring in a special way, it is provided according to the invention in addition that the support coordinated to the support arm of the loading spring, is connected with the remaining area of the loading spring. the part formed in sheet by means of a preseñalada nominal flexion line. For the state that in the framework of oscillations or changes of equalization in the braking force and retention of door fasteners manufactured in series, a subsequent adjustment of the tension of the loading spring is possible both in the direction of an increase as well as in the the direction of a decrease in tension, can also be provided according to another feature of the invention, that the area forming the variable position support for the loading spring and that belongs to the sheet molded part that stops the spring load, this directed to a position of departure that allows a conformation so much positive as negative. The individual conformation of the area of a retention box that forms the variable support in position for the loading spring or its support arm or which also belongs to a sheet-formed part that stops the loading spring, is preferably directed by the Species of the loading spring, such as, for example, a torsion spring, a rotatable rod spring or a coil spring. In a first embodiment especially suitable for a loading spring equipped with a support arm, it can then be provided that the area forming the variable position support for its support arm and belongs to the part formed in sheet retaining the spring of loading, present a form of square that is a reception in the form of a bag for the support arm and is arranged together in a projection cut freely from the part formed in sheet. In a suitable but different embodiment, also equipped with loading springs, equipped with a support arm, it can also be provided that the area forming the support variable in position for its support arm and belongs to the formed part in sheet that retains the loading spring, present a recess forming a gripping ear for the support arm and which jointly is disposed in a projection of the part formed in sheet, in a base cut freely and to it opposite. In view of the practical application of a support for the loading spring so as to adjust the pretension of the loading spring of a door fastener, it remains within wide limits which constructive form has to be applied to the door fastener. Thus, it can be provided in a first form of combination in a holding box formed from braking and retaining bodies as a part formed in sheet and equipped with rollers or cylinders and a fixing apparatus formed with braking or snapping marks in a The door retaining band passing through it, a braking and retaining body is pivotably hung in the retaining box and is mounted by means of a tensioner operated as a loading spring constructed as a torsion spring and the spring rotatable or twisting present between two spring sections joined helically, a loading arm formed in the form of a central arc and at the ends of its two spring sections joined in helical form being radially adjustable support arm, through which by means of a projection cut freely from the retaining box constructed as a sheet-formed part, engages the variable support in position.
In another form of combination of the loading spring and the braking and holding body as well as the fitting and retaining ramps, it can also be provided that the load of the retainer hung pivotably in a holding box for a braking and holding body of the The load arm has a variable position support by a support arm, of S or U shape, is coordinated by means of a torsion spring supported by a retaining box constructed of a sheet molded part. In another form of combination, of the loading spring and of the braking and holding body as well as fitting and retaining ramps, it can be provided that the loading spring constructed as a coil or rubber spring is received in a retaining box formed of sheet , for a braking and retaining body, which for its part is inserted into the retaining box movably so as to do so along a nominal bending line indicated above with respect to the adjustable wall area belonging to the holding box which adjusts the spring In another form of combination or shaping of the braking and holding body and of the fitting and retaining ramps as well as the loading spring, it can also be provided that a loading spring constructed as a coil spring or rubber spring received in a retention box formed by a part made of sheet for a braking and holding body which in turn is inserted into the holding box displaces In this case, a wall area of the adjustable holding box with respect to the spring is coordinated along a predetermined nominal bending line. BRIEF DESCRIPTION OF THE DRAWINGS Next, the invention is described by way of example, by means of a single embodiment shown in the drawings. Where it shows: FIGURE 1, a side view of a motor vehicle door fastener equipped with a device for the subsequent adjustment of the tension of the loading spring acting on the braking and holding body; FIGURE 2, a front view of the door fastener of the motor vehicle according to FIG. 1; FIGURE 3, a schematic representation of a second form of shaping a retaining box of a motor vehicle door fastener; FIGURE 4, a schematic representation of the adjustable support of the holding box of the shaping shape of a motor vehicle door fastener according to Fig. 3; FIGURE 5, a side view of a second form of shaping a retaining box of a motor vehicle door fastener; FIGURE 6, a plan view of the retaining box of the shape of shaping a motor vehicle door fastener according to Fig. 5; FIGURE 7, a side view of another form of shaping a motor vehicle door fastener equipped with a device for the subsequent adjustment of the tension of the loading spring acting on the braking and holding body. DESCRIPTION OF THE INVENTION The motor vehicle door fastener represented in a more or less schematic manner in the
Figs. 1 and 2, consists essentially of a retention box 1, and a door retention bar 2, placed therethrough. The holding box 1 is formed of a cut of sheet material in one piece and has two fixing projections 5, which oppose each other, protrude and are joined to each other by means of a transverse rod 3, and they join in smooth-position 4-position rods, projections on which the holding box 1 collides, by means of screw bolts not particularly represented, and in the door arrangement also not shown in the drawing.
In the holding box 1, by means of a position pin 6, a counter-support roller 7 is mounted rotatably about a fixed axis. To the counter-support roller 7, in the opposite manner, it is hung in an adjustable manner in reference to the door retaining band 2, by means of an axis 11, parallel to the axis of rotation of the counter-support roller 7, "around which scale, the retainer 8, a load cylinder 9 hangs perpendicularly to the door retaining band 2. hung on the holding box 1, there being a loading roller 9, perpendicular to the door retaining band 2. The retainer 8 is, by means of a loading spring constructed as a rotary or torsion spring 10, whose helical turns 12, are arranged on both sides of the longitudinal center of the door fastener on the position pins 11, and whose central loading arm 13, by means of a guide recess disposed therein gripping on the retainer 8, is spring loaded in the direction of the door retaining band 2. The loading spring 10, which has a loading arm 13 on the one hand, on the other hand rests on a support 15, variable in the position constructed in the holding box 1, by means of a sendo bra 14 of support 14, placed in connection with the helical turns 12, in each of its two ends in the helical turns radially. In the embodiment shown in particular in Figs. 3 and 4, of a holding box 1, formed of a sheet part, provided with supports 15, variable in position independently of one another for the support arms 14, radially disposed outwardly of a loading spring 10. , which presents on both sides of a loading arm 13, helical turns 12, forms zones of the part formed in sheet or of the holding box 1, which contains the loading spring 10, each time presenting a gripper for the support arm 14, of the loading spring 10, which forms a longitudinal bore notch 16, and which are arranged in freely cut projections 18 and adjusted with respect to its base 17 and belong to the sheet forming the retaining box 1. The supports 15, variable in position forming zones for the radially adjustable support arm 14, of the loading spring 10, of the part formed in sheet 1, which stops the loading spring 10, are made as projections 18, freely cut and as such, as it is especially appreciable by the representation of Fig. 4, they are manufactured in series first in a central starting conformation fitted to the base 17, of the part formed in sheet 1, which allows both positive and negative deformation, such so that the support 15, according to each necessary variation of the pretension of the loading spring 10, from the starting position represented in complete lines can be changed to a non-continuous line or to another second adjustment position also represented in a non-complete line , where also as is natural it is possible to think of any intermediate position. Here for the facilitation of a pursued adjustment of the freely cut areas as projections 18, which form the support 15, and belong to the formed part of the sheet 1, each time a nominal bending line 19, preseñalada, so that a folding or adjustment is carried out each time around or along a bending line 19, and thereby ensuring the maintenance of a certain adjustment path of the support 15, so that an equal adjustment angle leads to equal variations of the spring tension 10. In the embodiment shown particularly in Figs. 5 and 6, there is provided a door fastener equipped with a holding box 1, formed by means of a sheet-molded part and the supports 15, variable in position independently of one another, for the support arms 14, of a spring 10, which presents helical turns 12, on both sides of a loading arm 13, forming regions of the retaining box or sheet-molded part that stops or contains the loading spring 10, have said supports 15, a square 20, which forms a reception of the bag type for the support arm 14, and together they are arranged in a protrusion cut freely from the part formed in sheet 1. The adjustment of the loading spring pre-tension 10, is then carried out in such a way that the socket in the form of a bag forming the square 20, is bent at an angle along a nominal bending line 22, pre-marked more or less strongly against the base 17, of the box of retention 1, formed by a part made in sheet. The door fastener depicted schematically in Fig. 7, consists essentially of a bulge formed by a material cut and equipped with braking or snap marks, bulge provided in the door retention bar 2, which has a end opening stop for the door which is the end stop part 23, and a retaining box 1, formed of sheet material, which includes a tub-shaped box body 24, and a floor plate coordinated thereto 25. Unlike the shaping shapes shown in Figs. 1 to 6, of the door fasteners, are here inside the holding box 1, opposite to each other in reference to the door retaining bar 2, a fixed support part 26 in relation to the holding box and a retainer 28, movable with respect thereto which carries a braking and retaining body 27 which cooperates with one of the two wide sides of the door retention bar 2, where the retainer 28, which carries the braking and retaining body 27 , it is driven in the direction of the wide side of the door holding bar 2, with the loading of a loading spring which is constructed as helical spring 29, and bears against the front wall 30, of the box body 24, of the holding box 1. For adjusting the tension of the loading spring 29, the front wall 30, of the box body 24, of the retaining box 1, is replaceable along a pre-marked bending line towards the inside of the box. Having described the invention as above, the content of the following claims is claimed as property.