DOOR STOP

Description

[0001] The invention relates to a door check, in particular for a door of an automobile, comprising a door retaining rod which can be pivoted on one of the door and body of the automobile and has a first side and a profile formed on the first side, and a first brake body which can be arranged on the other of the door and body of the automobile, which first brake body rests in sections on the first side of the door retaining rod under a prestress and which defines at least one holding position with the profile of the first side.

[0002] Door checks are known in practice which are dimensioned to be sufficiently stable to be used as automotive door checks. Such automotive door checks have a door retaining rod which can be pivoted on the door or body of the automobile and which has a first side, in particular a broad side, on which a profile is formed. On the other side of the door and body of the automobile, usually on the door, a first braking body can be arranged which rests in sections against the first side of the door retaining rod under prestress and which, with the profiling of the first side, defines holding positions, in particular when it penetrates into recesses in the profiling. The braking body is guided circumferentially in a housing and is prestressed in the direction of the first side by a spring member, the spring member being supported in the housing.Here, the door retaining rod can be moved back and forth through an opening in the housing, but is prone to jamming. Furthermore, the known automotive door check has a great height, which results from the fact that the brake body requires a certain extension in the direction of its displacement to prevent jamming. The number of parts is quite high, and the assembly effort is also considerable, because the brake body in particular has to be inserted into a guide hole in the housing. Due to the play that the door retaining rod has in the opening in the housing, the acting forces are not reproducible depending on the angular position of the door and are therefore uneven. Furthermore, the known door retaining rods are designed with a curved extension that compensates for the pivoting movements of the door around the body or a body pillar and is intended to prevent any jamming.

[0003] WO 2008 152 961 A1 shows a door check for a door of an automobile, comprising a door retaining rod having a first side which can be pivotally mounted on one of the door and the body, and a first brake body which can be arranged on the other of the door and the body and which rests in sections on the first side of the door retaining rod under a prestress, wherein the first brake body has a central hole, wherein the door retaining rod has an elongated opening, wherein the central hole and the opening are penetrated by a guide pin.

[0004] WO 2006 089 528 A1 describes a door check for an automobile, in which a door retaining rod which can be pivotally mounted on one of the door and the body has a first side on which a profile is formed. Furthermore, the door retaining rod has a second side on which a further profile is formed which is different from the profile of the first side. The door retaining rod can be passed through a housing formed with an opening, wherein in the housing a brake body which interacts with the first side of the door retaining rod and is preloaded by a spring is circumferentially received in a receptacle and guided axially, wherein the brake body is equipped with a shaft part to which a counter bearing is connected in order to be able to displace the shaft part and brake body out of engagement from the first side.Coaxial with the first brake body, a second brake body, which is loaded towards the second side of the door retaining rod, is axially displaceable and circumferentially received in a receptacle in the housing. The second brake body has a cylindrical casing section with various perforations to prevent it from jamming in the guide. A disadvantage of the known automotive door check is the fact that the door retaining rod, in order to allow pivoting and displacement movements, must have a greater degree of play within the opening of the housing in order to avoid jamming. Furthermore, to prevent jamming, both brake bodies are each designed with a significant axial extension, whereby the overall height of the housing in the axis of movement of the brake bodies is very large. This results in large moments, which mean that the housing must be quite massive.Furthermore, the back and forth movement of the door retaining rod in the housing's holder occasionally causes friction noises that impair the ease of use of the automobile door check.

[0005] JP 2016 094 794 A describes a door locking device for an automobile door, in which a door retaining rod is pivotally connected to an automobile door. The door retaining rod has a rectilinear extension and a plurality of flat sections of different thicknesses that increase in the closing direction and are separated from one another by vertical steps. An actuator with a drivable shaft is arranged on the body, which shaft has two counter-rotating threaded sections, with a cuboid-shaped block being arranged on each of the two threaded sections, with the two blocks being adjusted towards the door retaining rod or away from the door retaining rod by the motor-driven rotation of the shaft. In particular, the lateral boundaries of the blocks form a stop for the steps of the door retaining rod when the blocks are moved together and prevent the door from closing.When the blocks are moved apart, however, the door can move freely. The main disadvantage of the door stop device is that the blocks must be guided laterally, otherwise they would rotate together with the shaft due to the thread being blocked when they are disengaged from the door retaining rod. Furthermore, the door stop device can only block the door in the closing direction, but not in the opening direction. Furthermore, the shaft drive must be permanently energized to prevent the blocks from rotating the shaft backwards. The door retaining rod is not designed to pivot around the shaft, as this would otherwise lead to noise due to friction between the thread and the opening.

[0006] DE 10 2014 018 333 B3 describes a door check for the door of an automobile, comprising a door retaining rod pivotably mounted on one side of the door and the body, having a first and a second side, each having a profile. Furthermore, a brake body is arranged on the other side of the door and the body, which brake body rests in sections against the side of the door retaining rod under the pretension of a spring and defines a holding position with the profile of the side. The brake body is circumferentially guided in a cylindrical section and can be freely displaced axially in response to the profile of the side of the door retaining rod while tensioning and relaxing the spring.

[0007] The object of the invention is to provide a door stop that is compact in design and reliable in operation.

[0008] This object is achieved according to the invention by a door stop having the features of independent claim 1.

[0009] According to the invention, a door check, in particular for a door of an automobile, is provided, comprising a door retaining rod which can be pivoted on one of the door and the body, said rod having a first side and a profile formed on the first side, and a first braking body which can be arranged on the other of the door and the body, which first braking body rests in sections on the first side of the door retaining rod under pretension and which, with the profile of the first side, defines at least one holding position, wherein the first braking body has a central hole, wherein the door retaining rod has an elongated opening, wherein the central hole and the opening are penetrated by a guide pin, wherein the door retaining rod is pivotable about the guide pin, and wherein the guide pin allows an axial movement of the first braking body along the guide pin.The door check is characterized in that the pre-tensioned first brake body gives way to the elevations in the profile of the door retaining rod as the pre-tension increases, and defines an increased holding force in the case of depressions in the profile of the door retaining rod as the pre-tension is released. This advantageously ensures that the first brake body no longer needs to be guided along its circumference, meaning that it does not have the minimum volume required for this. Furthermore, the guide pin can indirectly connect the brake body to the door or body of the vehicle without the need for a housing that completely encloses the brake body. This allows the door check to be designed with a small number of parts and to be small and therefore compact. The manufacturing costs of the door check can therefore be reduced.Furthermore, weight is saved, so that the door check effectively reduces the car's energy consumption. This advantageously ensures that the door retaining rod is centered by the guide pin and therefore has only minimal play in relation to the door and body of the car and / or the brake body. The door retaining rod can then always pivot about two axes, namely the one axis with which it is coupled to one of the door and body, and the axis of the guide pin, about which the door retaining rod also pivots. This advantageously makes it possible to dispense with a housing that circumferentially limits the displacement movement of the door retaining rod within an opening, so that the door check is compact overall. Furthermore, the assembly of the door check is particularly simple and precise by inserting the guide pin into the opening in the door retaining rod.The guide pin then advantageously guides both parts, the first brake body and the door retaining rod, wherein the first brake body is guided with its perforation in an axial direction of the guide pin along the guide pin, while the door retaining rod with the elongated opening is displaceable along the guide pin, but is centered by the guide pin on a predetermined path and thus causes a defined pivoting of the door retaining rod around the guide pin at every point.

[0010] The guide pin is advantageously connected to the other of the door and body, in particular to the door, in particular immovably connected, so that the movement of the door is transferred to the guide pin.

[0011] The central hole in the first brake body, through which the guide pin passes, or the elongated opening in the door retaining rod is preferably formed centrally in the corresponding part, thus avoiding weak points. Furthermore, the door retaining rod can have a metal core, which provides stability and is encased in a plastic material. The plastic material has favorable noise and friction properties and can be manufactured with defined surfaces without significant additional cost.

[0012] It is advantageously provided that the door retaining rod is displaceable relative to the first brake body of the guide pin. This creates a relative movement between the first brake body and the guide pin, which counteracts a pivoting moment of the door about its pivot point on the vehicle body with a braking force.

[0013] The first brake element is expediently preloaded by a spring element toward the first side of the door retaining rod, so that the spring constant of the spring element can be taken into account for adjusting the holding force. The spring element is expediently tensioned at one end directly or indirectly against the first brake element and at the other end against an abutment that is immovable or at least predominantly immovable with respect to the guide pin guiding the first brake element.

[0014] Particularly advantageously, the spring element can be penetrated by the guide pin, so that the spring element is clamped between the first brake body and the abutment. The spring element is preferably designed as a helical spring, but can also be designed as a disc spring or disc spring assembly, or in another known manner.

[0015] According to a preferred embodiment, the guide pin is secured to two retaining sections, one of which can be connected to the other of the door and the body of the automobile, so that the two retaining sections indirectly couple the guide pin to one of the door and the body. In this case, one retaining section is expediently arranged on the one hand, in particular above, one side of the door retaining rod, while the other retaining section is arranged on the other hand, in particular below, the door retaining rod, so that the door retaining rod runs between the two retaining sections.

[0016] Preferably, at least the guide pin connects the holding sections to one another, resulting in a single component that can be connected to the other of the door and body. This component does not need to be inherently immobile. A first option for connecting the guide pin to the holding section is for the guide pin to be equipped with threaded sections at its ends, which can be screwed into an internal thread of the holding sections or protrude from the holding section and secured with a nut. A further option is for at least one end of the guide pin to have a rivet head that is riveted to the holding section. The other end can also be riveted to the second holding section or, alternatively, has a screw head.

[0017] According to a favorable embodiment, the holding sections are part of a holder housing, which then also has, for example, connecting means to the other part of the door and the body of the vehicle. The holder housing can be largely made of a less stable plastic, while the guide pin is made of steel, for example, since the guide pin essentially absorbs the static and dynamic loads of the door check.

[0018] Conveniently, the holding sections, designed as two housing parts, jointly define an opening for the door retaining rod to pass through, thus creating an easily manipulated component, the retaining housing. The provision of a retaining housing makes it possible, in particular, to design the end of the door retaining rod as a stop in the manner of a hammer head to prevent load peaks from being transmitted to the guide pin when the door is fully open. At the same time, a stop damper in the area of ​​the retaining housing can largely suppress the noise generated during impact.

[0019] According to a favorable development, the first brake body has a cylindrical central perforation, and the first brake body, with its perforation, is rotatable about a cylindrical guide section of the guide pin, so that in addition to the guidance for movement in the axial direction of the axis of the guide pin, a rotation or pivoting about the axis of the guide pin is also possible. This advantageously ensures that the first brake body, particularly when it does not have a completely or approximately rotationally metric frontal design, can follow a changing orientation of the profile of the first side of the door retaining rod due to the relative pivoting of the door retaining rod to the guide pin.This advantageously ensures that there is always approximately linear or strip-shaped contact between the end face of the first brake body and the first side of the door retaining rod, so that a substantially constant progression of the braking force can be achieved. Alternatively, the central hole in the first brake body can also be prismatic, for example in the manner of a square or hexagon, in which case the corresponding guide section of the guide pin is complementary in order to prevent such twisting. For this purpose, however, the guide pin may have to be machined around its circumference. By selecting a favorable material pairing, e.g. guide pin made of steel and hole and / or opening made of plastic, the provision of a coating or bushing or sleeve, e.g. made of metal or plastic, which promotes sliding can be dispensed with.Preferably, however, at least in the area of ​​contact between the guide pin and the door retaining rod, a sliding-promoting coating, e.g., made of polyether ketone (PEEK), is applied, which does not increase the thickness of the guide pin in the corresponding area, or only minimally increases it. According to another advantageous alternative, the guide pin can have a bushing or sleeve pushed onto the guide pin in the area of ​​contact with the door retaining rod, which can rotate around the guide pin and promotes the mutual rolling of the guide pin and door retaining rod. The bushing is then prevented, for example, by the brake bodies from migrating out of the contact zone with the door retaining rod.

[0020] The first braking element is expediently designed as a perforated disc, which preferably has a protruding sliding elevation on the side facing the door retaining rod. The sliding elevation is oriented substantially perpendicular to the direction of displacement of the door retaining rod and defines a strip-shaped contact of the first braking element with the first side of the door retaining rod. Alternatively, it is possible to equip the rear side of the first braking element, which faces away from the door retaining rod, with a tubular extension, which is preferably formed integrally with the disc, in order, on the one hand, to limit the travel of the first braking element in the axial direction of the guide pin and, on the other hand, to form a guide aid for a spring member, and in particular to prevent the spring member from buckling. Furthermore, the assembly of the door check is thereby facilitated and the axial guidance along the guide pin is improved.Alternatively, the vertical stroke of the first brake body can also be limited by a stop or the like provided in a housing.

[0021] Preferably, the door retaining rod is rotatable about a cylindrical guide section of the guide pin. In a favorable embodiment, the outer and inner dimensions of the cylindrical guide section of the guide pin and the elongated opening in the door retaining rod are each coordinated to one another in such a way that only minimal play is possible in the relative positioning. It is even possible to insert the cylindrical guide section of the guide pin, which passes through the opening, with a slight interference fit. The contact area can expediently be designed to be lubrication-free by selecting an appropriate material pairing, or greased to reduce associated noise.

[0022] According to an expedient development, in addition to the braking torque generated by the braking bodies, the elongated opening in the door retaining rod is designed to generate a supplementary braking torque. For example, in a comfort zone near the full opening of the door, the opening is narrower and clamps the cylindrical guide section of the guide pin, thereby generating a braking torque. Conversely, the elongated opening can also have a freewheel in the form of a widened portion, for example, to prevent the door from being forced shut. In particular, at least one preferred holding position of the door can be provided between two projections constricting the opening.

[0023] The door retaining rod expediently has a slot-like opening through the first side, so that the effective area of ​​the first side is reduced by the width of the opening. The opening expediently runs perpendicular to the direction of displacement of the door retaining rod, so that the guide pin simultaneously ensures that the first brake body and the first side of the door retaining rod are in contact with each other without tilting and thus over the maximum area.

[0024] The door retaining rod preferably has a straight extension, which allows it to be used in opposing doors with different opening directions, thus further reducing the series length and thus the manufacturing costs of the component. The slot-like opening is then expediently formed exactly centrally in the door retaining rod. As an alternative to a design with exactly one, preferably central, guide pin, two guide pins can also be provided, which penetrate the hole or the opening.

[0025] In a particularly advantageous embodiment, the door check further comprises a second side opposite the first side, with a further profile formed on the second side, and furthermore a second braking body bears in sections against the second side of the door retaining rod, in particular under pretension, with the guide pin then passing through the first braking body and the second braking body. For this purpose, it is not necessary for the second braking body to also be axially displaceable; however, the second braking body is preferably arranged exactly in mirror image to the first braking body and is designed to be axially displaceable. However, it is also possible for the second braking body to interact with a non-profiled, flat second side of the door retaining rod in order to generate a basic braking torque.

[0026] The profiling of the first side of the door retaining rod can be performed in different stages, with the braking force to be overcome increasing with increasing profile height by increasing the preload of the first brake body. It is advantageously provided that relative minima of the preload define preferred holding positions of the door at a specific opening angle.

[0027] Preferably, the guide pin is designed as a cylindrical pin section with a smooth outer surface, at least in the area where it passes through the central hole and / or the opening. This allows the brake body to follow the movement of the door retaining rod. In addition to vertical displacement to follow the profile during relative movement of the door retaining rod, the brake body also allows free rotation around the pin section with a smooth outer surface, without causing braking, noise, and / or jamming.

[0028] The profile expediently has a continuous profile that allows the first brake element to slide in both directions along the length of the door retaining rod. It is particularly free of discontinuities such as steps along the profile that cannot be easily overcome by the brake element. As a result, the force resulting from the sliding of the brake element on the side of the door retaining rod is essentially defined by the preload, so that the brake element does not need to be adjusted by a motor.

[0029] According to a favorable embodiment, the first braking element can be freely displaced axially along the guide pin and / or the first braking element can be freely rotated radially around the guide pin, so that the first braking element can simultaneously follow the profile of the door retaining rod and the rotation of the door retaining rod about its joint. Especially when both degrees of freedom—i.e., with respect to free axial displacement and free radial rotation—are present, the door check is highly resistant to a wide variety of movement patterns and cycles and does not jam or tilt.

[0030] Preferably, the central hole and the guide pin opening are provided with clearance, allowing the door retaining rod and / or the brake body to move with respect to the guide pin with little or no friction. This allows stresses, particularly those that occur during alternating loads, to be effectively handled without the door stay jamming.

[0031] In a particularly advantageous development, at least one projection is provided on the brake body, which at least partially penetrates the opening. This advantageously orients the brake body in the direction of the opening, allowing it to conveniently follow the pivoting of the door retaining rod. Furthermore, the projection can prevent contact between the guide pin and the inner walls of the opening, thereby reducing wear and noise.

[0032] In a first advantageous embodiment, the projection is disc-shaped and thus centers the brake body relative to the door retaining rod. In a first preferred embodiment, the disc-shaped projection can have parallel walls that have a slight clearance relative to the inner walls of the opening.

[0033] Alternatively, the projection has a wedge shape in the radial direction, which facilitates advancement in the direction of the door retaining rod's extension. The wedge shape, in particular, makes it easier for the brake body to follow the pivoting of the door retaining rod. Alternatively or cumulatively, the projection has a wedge shape in the axial direction, which facilitates vertical penetration into the opening.

[0034] In a preferred embodiment, the projection protrudes beyond the brake body on the front side. As a result, the projection always engages the opening, while the brake body rests on the first side of the door retaining rod, which side forms a stop for the brake body.

[0035] In a favorable embodiment, the projection surrounds the guide pin, thus spacing the guide pin from the inner walls of the opening. If the projection thus formed is itself hollow-cylindrical, the projection can rotate completely around the guide pin. It is then possible to provide a further projection on the brake body, which is arranged eccentrically and penetrates the opening to orient the brake body in the direction of displacement.

[0036] Preferably, the projection or a portion of the projection extends radially toward the guide pin. This allows the brake body and its slider elevation to be aligned with the opening in the door retaining rod.

[0037] Preferably, the projection has a greater thickness than the diameter of the guide pin. This allows the guide pin to be kept at a distance from the inner walls of the opening, thus preventing wear and noise.

[0038] Further advantages, developments and features of the invention will become apparent from the following description of preferred embodiments and from the dependent claims.

[0039] The invention will now be explained in more detail with reference to the accompanying drawings using preferred embodiments. Fig. 1 shows a perspective view of a first embodiment of a door stop in assembled condition. Fig. 2 shows an exploded view of the door stop from Fig. 1 . Fig. 3 shows a section through the door stop from Fig. 1 and 2 . Fig. 4 shows a modified version of the door stop from Fig. 1 to 3 . Fig. 5 shows another variant of the door stop from Fig. 1 to 3 . Fig. 6 shows a second preferred embodiment of a door stop according to the invention. Fig. 7 shows the door stop from Fig. 6 in exploded view. Fig. 8 shows a second preferred embodiment of a door stop according to the invention. Fig. 9 shows a longitudinal section through the holder housing of the door stop from Fig. 8 . Fig. 10 shows a modified door stop in a view comparable Fig. 7 .

[0040] The Fig. 1 to 3The door stop shown, designated overall by 1, serves to couple a door 2 of an automobile, shown as a dash-dotted line, to a body 3, indicated as a dash-dotted line. The door 2 is connected to the body 3 via hinges (not shown), wherein the door stop 1 serves to brake the pivoting movement of the door 2 about the hinges and to limit its opening angle.

[0041] The door check comprises a housing 20 with a central opening 21, which consists of two plastic retaining sections 22, 23 that are plugged together. The plastic parts can be reinforced with metal reinforcement in areas subject to particular stress. The opening 21 is enclosed by the upper housing part 22 and the lower housing part 23 when assembled. Each of the two housing parts 22, 23 has an injected rivet bolt 24, which is provided for connection to the door 2 in its interior.

[0042] A door retaining rod 30 extends through the opening 21. At a first end, the rod is pivotally coupled in the region of an axis A via a joint 31 to a mounting part 32. The mounting part 32 has a recess 32a by means of which the mounting part 32 can be connected to the body or a member of the body 3 by means of a connecting means such as a screw or a rivet. The joint 31 has an axis A that is parallel to the axis of the hinges, so that when the door 2 is opened, a pivoting movement about the axis A is initiated to compensate for the pivoting movement about the hinges.

[0043] The door retaining rod 30 has in its central region an elongated, slot-like opening 33 which is enclosed on all sides and extends into the vicinity of the end 34 of the door retaining rod 30 opposite the joint 31. The door retaining rod 30 has a core 30a made of steel which is enclosed by a sheath 30b made of plastic, as shown in particular in Fig. 3 The door retaining rod 30 has an upper, first side 35, which is formed with a profile 35a, as will be explained below.

[0044] The two housing parts 22, 23 have end regions which engage together in the region of the opening 21 and which comprise projections 22a of the first housing part 22 which can penetrate into recesses 23a of the second housing part 23, as shown in Fig. 2 to recognize.

[0045] The first housing part 22 and the second housing part 23 are connected to one another by a guide pin 40, which also extends through the opening 33, in that the ends 41 of the guide pin 40 are riveted to an outwardly facing end face 22b, 23b of the first and second housing parts 22, 23. The guide pin 40 thus connects the two housing parts 22, 23 to form a common housing 20.

[0046] It can be seen that the second housing part 23 is essentially made of solid material and has a central bore 23c through which the guide pin 40 passes and is received largely without play.

[0047] The first housing part 22 has, in the region of its end face 22b facing away from the door retaining rod 30, a short channel 22c that extends through the upper housing part 22 and is adapted to the circumference of the guide pin 40. The channel 22c opens into a first cylindrical cavity 22d, which in turn merges into a second cylindrical cavity 22e with an even larger diameter, forming a step 22f. The second cylindrical cavity 22e is open toward the door retaining rod 30.

[0048] A first brake body 50 and a spring member 60 designed as a helical spring, which loads the first brake body 50, are inserted into the cylindrical cavities 22d, 22e. The helical spring 60 is supported at one end in an annular recess on the rear side of the first brake body 50 and at the other end on the section of the first cylindrical cavity 22d opposite the end face 22b, which radially surrounds the channel 22c. The spring member 60 is wound such that it can be compressed, increasing its preload. The spring member 60 also surrounds the guide pin 40 at a distance.

[0049] The first brake body 50 has an end face 51 facing the door retaining rod 30, which has a sliding elevation 51a projecting toward the door retaining rod 30 and extending transversely to the direction of displacement of the door retaining rod 30. The continuously sloping flanks of the sliding elevation 51a on both sides promote sliding up and down ramps of the profile 35a. The first brake body 50 has a central hole 50c designed to accommodate a cylindrical guide section 40a of the guide pin 40 with very little play. The guide section 40a of the guide pin 40 extends through the hole 50c and enables movement of the brake body 50 in the direction of the axis of the guide pin 40 and pivoting about the axis of the guide pin 40.

[0050] The first brake body 50 comprises a section formed as a perforated disc 52, which forms a circumferential edge 52a, and a central tubular section 53 extending axially over the edge of the disc section 52. The central perforation 50c is formed in the tubular section 53 and also penetrates the sliding elevation 51a.

[0051] One can see particularly in Fig. 3 The step 22f forms a stop for the peripheral edge 52a of the first brake body 50, which limits the axial displacement. Alternatively, the end of the tube section 53 facing away from the support rod 30 could also be used for this purpose.

[0052] The second housing part 23 can have a plate spanning the width of the door retaining rod 30 and containing the bore 23c, which is intended to come into contact with a second side 36 of the door retaining rod 30 facing away from the first side 35. In this case, the guide pin 40 is guided through the plate 23d. It is possible to design the plate as a joint part with the second housing part 23.

[0053] In Fig. 4 a section of a modified door support rod 30' is shown, which extends from the support rod 30 Fig. 1 to 3It differs in that in the end region 34 of the retaining rod 30', a stop buffer 39' is inserted into the opening 33, which in this case is made of a soft plastic. The stop buffer 39' can be either injected into the door retaining rod 30' or glued to it. The stop buffer 39' primarily serves to dampen any noise generated when the end region 34 of the door retaining rod 30' strikes the guide pin 40 and, at the same time, to reduce the introduction of mechanical stresses into the plastic sheath 30b of the door retaining rod 30' through direct mechanical contact.

[0054] Fig. 5 shows an alternative embodiment of a door holding rod 30", which extends from the door holding rod 30 Fig. 1 to 3by the end region 34" designed as a hammer head. The laterally projecting regions of the hammer head 34" project laterally beyond the opening 21 of the holder housing 20 and thus limit the distance that the holding rod 30" can be pulled out of the holder housing 20. This also prevents both noise development and mechanical stress in the area of ​​the end of the opening 33.

[0055] Fig. 6 and 7 show a further preferred embodiment of a door stop 101 according to the invention, wherein the same reference numerals as in the embodiment according to Fig. 1 to 3 , the same or structurally comparable parts.

[0056] Unchanged according to the embodiment according to Fig. 1 to 3are the door retaining rod 30, the first brake body 50 and the spring member 60. However, the door stop 101 is not equipped with a holder housing, but with two individual holding sections 122, 123, which are identically designed and which are coupled to one another by a guide pin 140.

[0057] The two holding sections 122, 123 are each designed as angle profiles, with a substantially vertically extending leg formed with a recess 122k, 123k, which serves for fastening to a door 2, for example by means of corresponding rivet pins or screw bolts, and with a substantially plate-shaped horizontal leg which has a bore 122b, 123b through which the guide pin 140 can pass. It can be seen that the guide pin 140 is designed to be considerably shorter than the guide pin 40 of Fig. 1 to 3because it only needs to connect the distance between the two horizontal legs of the holding sections 122, 123. The guide pin 140 is riveted externally to the horizontal legs of the holder sections 122, 123 and passes through the spring member 60, the central hole 50c of the first brake body 50, the elongated opening 33 of the door retaining rod 30, and a hole 70b of a further brake body 70, which rests on the horizontal leg of the second holding section 123. The further brake body 70 interacts with the second side 36 of the door retaining rod 30, facing away from the first side 35, to generate a braking torque counteracting the displacement of the door 2.It can be seen that it is also possible to fasten the second holding section 123 rotated by 180 degrees to the door 2, and then to connect a further spring 60 and the first brake body 50 penetrated by the guide pin 140, which is longer, in particular if the second side 36 of the door holding rod 30 is also provided with a profile.

[0058] It can also be seen that the guide pin 140 connects the parts together, whereby the parts can each pivot about the guide pin 140. It is possible that the riveting of the ends 141 of the guide pin 140 non-rotatably couples the holding sections 122, 123 to the guide pin 140.

[0059] Fig. 8 and 9 show a further preferred embodiment of a door stop 201 according to the invention, wherein the same reference numerals as in the embodiments according to Fig. 1 to 5 , the same or structurally comparable parts.

[0060] In contrast to the embodiment according to Fig. 1 to 5 The guide pin 40 has a coating or sheath made of PEEK450FE20 in the area of ​​the guide section 40a, which contacts the opening 33 of the door retaining rod 30, which promotes sliding properties. Alternatively, the area of ​​the guide section 40a can be hardened by partial laser machining, thus reducing wear in this area, which is particularly subject to relative movement. Laser treatment and sheathing can also be combined.

[0061] In contrast to the embodiment according to Fig. 1 to 3the door retaining rod 30 has an opening 33 which does not have an approximately constant width, but which comprises regions of varying widths. A free-running region 33F of the opening 33 has a width which is larger than the circumference of the guide pin 40, so that a relative movement between the door retaining rod 30 and the guide pin 40 is possible practically unbraked or with minimal braking. As a result, no increased force needs to be exerted when the door is closed. This function is also referred to as a closing aid, since in this region the resistance of a lock must already be overcome. A clamping region 33K of the opening 33 has a width which is smaller than the circumference of the guide pin 40, so that a relative movement between the door retaining rod 30 and the guide pin 40 is braked and a greater force must be introduced into the door to overcome it.This has the advantage of braking the door shortly before it reaches its maximum opening angle, and correspondingly reducing the stress when the 34" stop is reached.

[0062] In contrast to the embodiment according to Fig. 1 to 3 The door retaining rod 30 has a holder housing 20 that accommodates two spring members 60 and two brake bodies 50, so that both the first side 35 and the second side 36 of the door retaining rod 30 are each acted upon by one of the brake bodies 50. The brake bodies 50 are in turn guided axially displaceably and rotatably via a central hole 50c on the guide pin 40.

[0063] The holder housing 20 comprises two plate-shaped holding sections 22, 23, to each of which one end 41 of the guide pin 40 is riveted. The holding sections 22, 23 are designed as sheet metal discs which transmit the force F ( Fig. 9), which is introduced into the system by the spring members 60. It is also possible to design the holding sections 22, 23 as plastic discs.

[0064] The holder housing 20 further comprises a plastic cover 25, which is inserted between the two holding sections 22, 23 and spaced them apart. Since the cover 25 absorbs only low forces and does not radially guide the braking body 50, it is made of a relatively thin-walled material and can be manufactured, for example, using an extrusion process. By spacing the cover 25 from the braking body 50, the latter can rotate about the guide pin 40 when the latter follows the profile of the door retaining rod 30. The opening 21, through which the door retaining rod 30 can be moved back and forth through the holder housing 20, is also formed in the cover 25.

[0065] The cover 25 comprises a central receptacle for the spring members 60 and the brake bodies 50, as well as a guide 28 in which two guide members 80 are arranged, each of which has a sleeve 81 with an internal thread. The holder housing 20 can be connected to a vehicle door via the sleeve 81.

[0066] The two holding sections 22, 23 can also be designed such that they additionally completely or partially close the insertion openings of the guide 28. It can be seen that the cover 25 indirectly connects the two holding sections 22, 23 and the parts coupled thereto to an automotive part such as a vehicle door. It can also be seen that instead of a one-piece cover 25, this can also consist of two parts, with a spring member 60 and brake body 50 being accommodated in one such part. Finally, it can be seen that although the cover 25 spaces the holding sections 22, 23 apart, the cover 25 is not required for this purpose. The cover 25 therefore primarily protects the interior of the holder housing against the ingress of dirt from outside.

[0067] The invention works as follows: The holding sections 122, 123, or the housing parts 22, 23, which also form holding sections, are connected to an interior region of the door 2, while the mounting part 32 is connected to the body 3. If the door 2 is now pivoted relative to the body 3 about the hinge axes, the door retaining rod 30 pivots about the axis 31 and is pulled out of the door 2, resulting in a relative displacement relative to the first brake body 50. At the same time, the guide pin 40, 140 penetrating the opening 33 fixes the door retaining rod 30 in the region of its guide section 40a, 140a. The first brake body 50 can also pivot about the guide pin 40, 140 in order to align its slide elevation 51a with the profile 35a of the door retaining rod 30, wherein the spring 60 preloads the first brake body 40 so that it is pressed against the first side 35 of the door retaining rod 30.The preload of the spring member 60 increases as the profiling 35 increases in thickness while the door retaining rod 30 is pulled out of the door 2. If the profiling 35a decreases, the spring member 60 is relieved again. This changes the braking torque of the door retaining rod 1, 101 as the door retaining rod 30 is pulled out of the door 2 due to the pivoting movement of the door 2. During the displacement movement of the door retaining rod 30, it is always centered by the guide pin 40, 140, so that there is no friction against the interior areas of the door 2 and / or against the boundaries of the opening 21.

[0068] It can be seen that the door retaining rod 30 has an elongated profile overall, thus differing from the known curved door retaining rods that can rub against the opening 21. The elongated contour is made possible by the central guidance of the guide pin 40, 140 and leads to less material waste during production. Furthermore, the door retaining rod 30 can be used equally well on a left-opening door as on a right-opening door of an automobile, whose braking force characteristics do not differ, because the curvature no longer predetermines the left or right installation location. Furthermore, it can be seen that the door check 1, 101 can be installed on either side of the vehicle, for example by rotating it 180 degrees. This means that the first side 35 points upwards for one side and downwards for the other side.

[0069] Fig. 10shows the door stop 101 from Fig. 7 in a modified version, using the same reference numerals as in Fig. 6 and 7 refer to the same parts. In contrast to the door stop 101 from Fig. 6The brake body 50, which is connected to the guide pins 140 so as to be freely axially displaceable and freely rotatable, has a radially extending nose 250 which projects radially perpendicular to the extension of the slide elevation 51a and projects like a sword into the opening 33 of the door retaining rod 30, thus aligning the brake body 50 with respect to the profiling 35a. The nose 250 also projects axially slightly beyond the slide elevation 51a, so that in every axial displacement position of the brake body 50, the nose 250 penetrates slightly into the opening 33, even if the first side 35 is essentially flat. The nose 250 assists the brake body 50 in following the rotation of the door retaining rod 30 about its linkage 31 by transmitting a stronger torque to the nose 250 and thus to the brake body 50.The nose 250 is designed with two parallel surfaces that can be inserted into the opening 33 with minimal clearance, thus preventing unwanted additional braking. However, it is also possible to design the two surfaces wedge-shaped in the radial direction and / or wedge-shaped in the axial direction to support centering during movement.

[0070] It is also possible to provide another projection on the brake body 50 instead of a nose, which penetrates the opening 33, for example, a cylindrical pin spaced radially from the axis of the brake body 50, which provides the same function. An angled pin or a pin protruding obliquely from the brake body 50 is also possible.

[0071] The pin 250' can alternatively also be provided as an extension of the pipe section 53 of the brake body 50' or in extension of the pipe section 53, and thereby completely or partially surround the guide pin 40 within the opening 33.

[0072] If the door stop has two axially displaceable brake bodies 50, both are expediently equipped with a projection 250. The two projections can also be mounted in opposite directions, so that one protrudes radially in the opening direction and the other radially in the closing direction. If the two projections are arranged in the same direction, in particular aligned with each other, they are dimensioned such that they do not touch each other, or only touch in the area where the door is closed.

[0073] The further brake body 70 also has two projections 270 which penetrate into the opening 33 of the door retaining rod 30 in the manner of a nose or a sword with the advantages mentioned above.

[0074] It is possible to equip only the brake body 70, which is not axially displaceable, with the projections 270 and to dispense with the projection 250 on the first brake body 50.

[0075] It is also possible to arrange two radial projections 250 on the brake body 50 so that the brake body 50 is centered along the profiling 35a in both directions of movement.

[0076] The projections 250, 270 are expediently formed integrally with the respective brake bodies 50, 270, in particular, manufactured from plastic material using an injection molding process. However, it is also possible to inject a metallic projection or to screw it in after the brake body 50, 270 has been manufactured, or to fix it in some other way.

[0077] The projections provided on the brake bodies and their centering in the opening 33 simultaneously prevent friction between the guide pin 40 and the inner walls of the opening 33, resulting in less wear and / or corrosion, as well as less noise. For this purpose, the thickness of the projections 250, 270 is advantageously greater than the diameter of the guide pin 40, at least in the area where it penetrates the opening 33.

[0078] It is possible to select the wedge shape or taper of the projections 250, 270 so that an increased frictional moment is provided in certain areas, for example by the opening 33 providing constrictions in certain areas in which the projections 250, 270 experience increased friction when displacing along the profiling 35.

[0079] The invention has been explained above using exemplary embodiments in which the first side 35 of the door retaining rod 30 points upward. It is understood that the first side of the door retaining rod can also be inserted into the vehicle so that it points downward, with the first brake body 50 pressing against the first side 35 from below.

[0080] The invention has been explained above using an exemplary embodiment in which the holding sections 22, 23 are parts of a holder housing 20 that defines an opening 21 for the passage of the door retaining rod 30. It is understood that a holder housing that laterally defines the door retaining rod 30 is no longer required if the guide pin 40, 140 penetrates the door retaining rod in the region of its central opening 33, because then edge-side guidance of the door retaining rod 30 is not required.

[0081] The invention has been explained above with reference to exemplary embodiments in which only a first side 35 of the door retaining rod 30 is acted upon by a first braking body 50. It is understood that door retaining rods can also have two sides, each of which is acted upon by a braking body 50 to generate a braking torque.

[0082] The invention has been explained above using an exemplary embodiment in which the guide pin 40, 140 is riveted to the holding sections 22, 23, 122, 123, thus connecting them to one another. It is understood that other possibilities for connecting the guide pin also exist, particularly if the guide pin is equipped with threaded sections at the end, and that this also allows for fine adjustment of the spring force of the spring member 60. To prevent subsequent adjustment of the guide pin, the guide pin can be secured to the holding sections with a weld point or the like.

[0083] The invention has been explained above using an exemplary embodiment in which the elongated opening 33 of the door retaining rod 30 has a constant width. It is understood that constrictions or widenings can also be provided in the opening, which generate an additional braking torque when the door retaining rod 30 moves relative to the guide pin 40, 140.

[0084] A special feature of the door stand 1, 101 according to the invention is that the door holding rod 30 and the first brake body 40 are both captively connected to the same guide pin 40, 140, thereby avoiding an incorrect pairing of the door holding rod 30 and the holder housing 20 or holding sections 122, 123.

[0085] The invention has been described above with reference to several specific embodiments. It is understood that the individual elements of the embodiments, e.g., the holder housing or the door retaining rod, can be combined with the other elements of the other embodiments, within the scope of the invention as defined by the appended claims.

Claims

1. Door arrester, in particular for a door of a motor vehicle, comprising a door retainer rod (30) which can be mounted on one of a door (2) and a body (3) so as to be pivotable and having a first side (35) with a profiling (35a) formed on the first side (35), and a first braking element (50) which can be arranged on the other of the door (2) and the body (3) and in sections bearing against the first side (35) of the door retainer rod (30) under the effect of a preload, and which, with the profiling (35a) of the first side (35), defines at least one retaining position, wherein the first braking element (50) has a central boring (50c), wherein the door retainer rod (30) has an elongate through-hole (33), wherein a guide pin (40) passes through the central boring (50c) and the through-hole (33), wherein the door retainer rod (30) can be pivoted about the guide pin (40), and wherein the guide pin (40) permits an axial movement of the first braking element (50) along the guide pin (40), characterized in that the profiling (35a) of the door retainer rod (30) comprises elevations and recesses, and that the preloaded first braking element (50) yields to the elevations of the profiling (35a) of the door retainer rod (30) while increasing the preload and defines an increased retaining force by releasing the preload at recesses of the profiling (35a) of the door retainer rod (30).

2. Door arrester according to claim 1, characterized in that the door retainer rod (30) can be displaced with respect to the first braking element (50) and the guide pin (40).

3. Door arrester according to either claim 1 or 2, characterized in that the first braking element (50) is preloaded by a spring member (60) towards the first side (35) of the door retainer rod (30).

4. Door arrester according to claim 3, characterized in that the guide pin (40) passes through the spring member (60).

5. Door arrester according to any of the preceding claims, characterized in that the guide pin (40) is fixed on two retaining portions (22, 23; 122, 123) which can be connected to the other of the door (2) and the body (3), and that the guide pin (40) connects the retaining portions (22, 23; 122, 123) to one another.

6. Door arrester according to claim 5, characterized in that the retaining portions (22, 23) are part of a retainer housing (20), and that the retaining portions (22, 23) together delimit an opening (21) for the passage of the door retainer rod (30).

7. Door arrester according to any of claims 5 or 6, characterized in that the guide pin (40) is fixed at least at one end by riveting to one of the retaining portions (22, 23; 122, 123).

8. Door arrester according to any of the preceding claims, characterized in that the first braking element (50) is formed as a perforated disk (52) which has a protruding slide elevation (51a) on the side (51) facing the door retainer rod (30).

9. Door arrester according to any of the preceding claims, characterized in that the door retainer rod (30) has a slot-like through-hole (33) which penetrates the first side (35).

10. Door arrester according to any of the preceding claims, characterized in that the door retainer rod (30) has a straight extension which allows the use in opposite doors.

11. Door arrester according to any of the preceding claims, characterized in that the first braking element (50) comprises a central tube portion (53), in which the central boring (50c) is formed, and that the guide pin (40) is formed as a cylindrical pin portion with a smooth outer surface (40a) at least in the region where it passes through the central boring (50c).

12. Door arrester according to claim 11, characterized in that the central tube portion (53) is provided on a back of the braking element (50) facing away from the door retainer rod (30).

13. Door arrester according to any of the preceding claims, characterized in that the first braking element (50) is axially freely displaceable along the guide pin (40), and that the first braking element (50) can be freely rotated radially about the guide pin (40), so that the first braking element (50) can simultaneously follow the profiling (35a) of the door retainer rod (30) and the rotation of the door retainer rod (30) about its joint (31).

14. Door arrester according to any of the preceding claims, characterized in that the elongate through-hole (33) has a clamping region (33K), and that the guide pin (40; 140) or at least one projection (250; 250'; 270) of the braking element (50) generates a braking torque in the clamping region (33K) of the elongate through-hole (33).

15. Door arrester according to any of the preceding claims, characterized in that the door arrester comprises a second side (36) having a further profiling (35a) and opposite the first side (35) of the door retainer rod (30), that a second braking element (70) at least in section bears against the second side (36) of the door retainer rod (30) under the effect of a preload, and that the guide pin (40) passes through the first braking element (50) and the second braking element (70).