Source: http://www.google.com/patents/US7203996?dq=5,666,293
Timestamp: 2014-07-31 06:19:14
Document Index: 601369680

Matched Legal Cases: ['Application No. 200', 'art 2', 'arts 2', 'art 4', 'art 4', 'arts 2', 'art 2', 'art 2', 'art 4', 'art 2', 'art 46', 'art 46', 'art 46', 'art 46', 'art 46', 'art 46', 'arts 2', 'art 2', 'art 4', 'art 2', 'art 4']

Patent US7203996 - Hinge door arrester for vehicle doors - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsThe invention relates to a hinge door arrester, particularly for vehicle doors, comprised of two hinge parts (2, 4), which are connected by a hinge pin (6) in a manner that permits them to swivel about a rotational axis (8) and between which a detent device (10) is integrated that defines different relative...http://www.google.com/patents/US7203996?utm_source=gb-gplus-sharePatent US7203996 - Hinge door arrester for vehicle doorsAdvanced Patent SearchPublication numberUS7203996 B2Publication typeGrantApplication numberUS 10/380,443PCT numberPCT/EP2001/010032Publication dateApr 17, 2007Filing dateAug 30, 2001Priority dateSep 13, 2000Fee statusPaidAlso published asEP1317598A1, US20040020014, WO2002023000A1Publication number10380443, 380443, PCT/2001/10032, PCT/EP/1/010032, PCT/EP/1/10032, PCT/EP/2001/010032, PCT/EP/2001/10032, PCT/EP1/010032, PCT/EP1/10032, PCT/EP1010032, PCT/EP110032, PCT/EP2001/010032, PCT/EP2001/10032, PCT/EP2001010032, PCT/EP200110032, US 7203996 B2, US 7203996B2, US-B2-7203996, US7203996 B2, US7203996B2InventorsJ�rg Linnenbrink, Thomas HeiberOriginal AssigneeFriedr. Fingscheidt GmbhExport CitationBiBTeX, EndNote, RefManPatent Citations (31), Referenced by (8), Classifications (9), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetHinge door arrester for vehicle doorsUS 7203996 B2Abstract The invention relates to a hinge door arrester, particularly for vehicle doors, comprised of two hinge parts (2, 4), which are connected by a hinge pin (6) in a manner that permits them to swivel about a rotational axis (8) and between which a detent device (10) is integrated that defines different relative rotating positions. Said detent device (10) is comprised of at least one detent element (12), which is kinematically joined to the first hinge part (2) and which is spring-loaded in a radical working direction that is perpendicular to the rotational axis (8). The detent device is also comprised of a sliding surface (16), which is kinematically joined to the second hinge part (4), is provided essentially in the shape of a sector of a circle, is arranged, with regard to its radius of curvature, coaxial to the rotational axis (8), and which comprises at least one detent position (14) that interacts with the detent element (12). The detent element (12) is provided as a sliding friction over the sliding surface (16), whereby metal and plastic preferably interact in a sliding manner at all times.
CROSS-REFERENCE TO RELATED APPLICATION This application is the National Phase of PCT Application No. WO 02/23000 filed PCT on Aug. 30, 2001, which claims priority to German Utility Model Application No. 200 15 850.3 filed Sep. 13, 2000 and U.S. application Ser. No. 09/716,056 filed Nov. 17, 2000.
A hinged door arrester of this type, i.e. a �door hinge having an integrated door arrester�, is described in the document EP 0 893 565 A2. It is firstly characteristic of this type that the pivoting axis of the latching element of the door arrester corresponds to the axis of rotation of the hinge, and secondly that a runway merely extending over part of a circle (sector of a circle) is provided. This results in a very compact design. In the known hinged door arrester, the latching element (or each of a plurality of latching elements) is designed as a roller, roll or similar rotating rolling body which is mounted, via a bearing-spindle element, in a manner such that it can rotate about a rotational axis parallel to the axis of rotation of the hinge. In this connection, it is also to be ensured, by means of specific measures in the region of the interacting surfaces of the runway and of the latching element resting on the runway, that the rolling body in each case rolls along the runway so as to avoid any sliding friction and wear resulting therefrom. However, the rotational bearing arrangement of the rolling body or of each rolling body results in a relatively high outlay, which is disadvantageous especially because door arresters of this type are mass-produced products and so even only a relatively slight additional cost per piece results overall in serious additional costs.
According to the invention, this is achieved in that the latching element is designed as a sliding element guided over the runway with sliding friction. The invention therefore fundamentally differs from the specification known from the prior art and it is thereby advantageously possible to omit complicated rotational bearings in the region of the latching element. It is nevertheless possible to obtain good performance properties and also long endurance, in a manner which is virtually free of maintenance. This has to be regarded as surprising, since the latching elements of door arresters of this type are acted upon by very high spring forces in order to ensure high latching and door-arresting moments. In this respect, the invention is based on the realization that�especially with certain combinations of material and/or shapings in the region of the sliding surfaces of the runway (slideway) and sliding element�it is possible still to obtain sufficiently low sliding friction that overall good performance properties and, surprisingly, also long endurance can be ensured. For this purpose, it is expedient to form one of the two interacting sliding surfaces from a metal and to form the other sliding surface from a suitable plastic (metal/plastic pairing), where the allocation of the materials to the sliding element and the slideway is actually as desired. Particularly suitable plastics are: PPA, PES, PEI, PPS, PA or PEEK. It is advantageous, for example, to configure the runway in the region of its runway surface of a polyamide with a lubricant additive, in particular molybdenum sulfite (for example, PA6 MOS2), the sliding element, in the region of its sliding surface, consisting of a sintered metal, preferably with a lubricant diffused into it. Alternatively, the runway can consist of aluminum and the sliding element of plastic, for example the abovementioned polyamide. The essential feature here is for at least one of the �sliding partners� always to consist of a suitable plastic for the purpose of isolating sound.
FIG. 2 shows an enlarged axial section in the plane II�II according to FIG. 1,
FIG. 3 shows a cross section in the plane III�III according to FIG. 2,
FIG. 8 shows a cross section in the plane VIII�VIII according to FIG. 7,
FIG. 10 shows an axial section in the plane X�X according to FIG. 9,
FIG. 11 shows a cross section in the plane XI�XI according to FIG. 10,
FIG. 15 shows a section in the plane XV�XV according to FIG. 14, and
According to FIG. 2, the hinge pin 6 is preferably connected releasably to the first hinge part 2 or to the supporting section 20 thereof via connecting means 26, so that the hinge parts 2 and 4 can be separated, i.e. disassembled, by releasing these connecting means 26 while maintaining the connection between the hinge pin 6 and the second hinge part 4 or the latching means assigned to the second hinge part 4. In this connection, it is advantageously also provided that the connecting means 26 are designed in such a manner that within the maximum possible pivoting range (approximately 70� to 80�) of the hinge parts 2, 4, the hinge pin 6 can be connected to the first hinge part 2, in a manner locked with respect to torque, in only one specific relative position with respect thereto (�phase angle�<door-pivoting angle). For this purpose, the hinge pin 6 sits, by means of a preferably tapering section 28, in a correspondingly matched holder 30 of the supporting section 20 of the first hinge part 2 in a manner such that it is free of play, is self-centering and secured against twisting. The section 28 of the hinge pin 6 has a cross section which deviates from the circular form so as to ensure that the connection is secure against twisting. In the exemplary embodiment illustrated, there is an essentially conical configuration of the section 28 with a circular base cross section and with a cross-sectional widening formed, for example, by means of a radial rib. As an alternative to this, the section 28 of the hinge pin 6 could also, for example, have a polygonal cross section or a circular base cross section with at least one cross-sectional reduction formed, for example, by means of a secant-like region.
As now further ensues from each of FIGS. 1 to 3, the latching device 10 is accommodated within a housing 40, which is preferably formed integrally with the second hinge part 4. According to FIG. 2, the hinge pin 6 engages in the housing 40 through a wall 42 which is approximately parallel to the supporting section 20 of the first hinge part 2 and has the rotational-guide opening 23 preferably together with the sliding bushing 24. Arranged within the housing 40 is firstly the runway 16, which is fixed in position with respect thereto, and secondly a guide part 46 which guides the latching element 12 and is connected to a connecting section 44 of the hinge pin 6 in a manner locked with respect to torque. For the connection which is locked with respect to torque, the connecting section 44 has a cross section which deviates from the circular form, in the example illustrated a rounded polygonal or star-shaped cross section (cf. FIG. 3). On its upper side facing away from the wall 42, the housing 40 has an opening which serves for the fitting of the functional parts of the latching device 10 and can be closed by means of a cover element 48 (FIGS. 1 and 2)�preferably sealed via a suitable seal 49. The latching element 12 is guided displaceably in the guide part 46 in a direction which is perpendicular and radial to the axis of rotation 8, and is acted upon radially from the inside in the direction of the runway 16 arranged on the outside by spring force F from an energy storing device 50. The energy storing device 50 is formed by at least one spring element 52. A helical compression spring, a rubber or elastomeric element, a cup spring and/or the like, for example, can be used as the spring element 52. In the exemplary embodiment according to FIGS. 2 to 5, the latching element 12 is acted upon by three spring elements 52 which are designed as helical compression springs and are each arranged next to or above one another in the direction of the axis of rotation 8. The number of spring elements 52 and the level of spring force F in each case depend on the latching or arresting moments to be obtained.
In the first embodiment shown in FIGS. 2 to 5, the sliding element 54 is an approximately cuboidal body which is guided displaceably over a large, radial length in a correspondingly shaped interior of the guide part 46. For this purpose, it is advantageous if�see FIG. 4�the sliding element 54 has, in the region of its surfaces guided in the guide part 46, groove-like depressions 55 for holding a lubricant (for example, grease). In this arrangement, the sliding element 54 according to FIG. 2 has a spring holder 56, which is especially in the manner of a blind hole, for each spring element 52, so that each spring element 52 arranged within the guide part 46 engages by a relatively large length in the associated spring holder 56 of the sliding element 54. This advantageous configuration results in a large loaded length of spring with the sliding element 54 having a guide length which is large and therefore more secure against tilting, and all in all, advantageously, in a low overall size.
In the design variant shown in FIGS. 4 and 5, the sliding element 54 is formed by a two-component plastic shaped part. In this case, the region of the sliding surface 58 can advantageously consist of a first plastic material and the remaining region of a second, different plastic material. A material having good (low-friction) sliding properties is used for the region of the sliding surface 58. The mechanical stability is of prime importance in the remaining region because of being acted upon by the spring. The two material components are then connected to each other with a cohesive material joint and/or homogeneously and/or in a form-fitting manner. In this arrangement, in addition to or alternatively to the grease-containing depressions 55 already described above�the surfaces guided in the guide part 46 may have, at least in some regions, for example in the lifting direction of movement, as illustrated, strip-shaped coatings 61 made of a material with good sliding properties, advantageously, for example made of the same material as the sliding surface 58. Zones for accommodating lubricant (for example, grease) are produced between the strip-shaped coatings 61.
During the relative movement of the hinged parts 2, 4 the sliding element 54 latches in each case into a latching depression 64. In this connection, the position of the latching depressions 64 is selected in particular in such a manner that a completely opened opening position of the vehicle door and preferably, in addition, at least one, for example, approximately semiopened intermediate position (so called parking position) are defined. In addition, it is preferably provided that the latching device 10 defines a pulling path for automatically shutting the vehicle door in an end region of the relative movement, which region is assigned kinematically upstream of a door-closing position. For this purpose, the runway 16�see again FIG. 3 in particular�has, in its end region arranged upstream of the door-closing position, a pulling-path section 66 which runs from a certain, smaller radius of the runway obliquely outward to larger radius. By means of this oblique profile of the runway 16 over the pulling-path section 64, the spring force F, via the sliding element 54, is able to cause automatic rotation of the hinge part, which is connected to the door, as far as the door-closing position.
Finally, as far as the variant according to FIG. 12 is concerned, the sliding element 54 is formed here by a strip-shaped solid profile�expediently as a replacement for the hollow profile according to FIGS. 10 and 11. Said solid profile can basically be acted upon by at least one desired type of spring element, for example by helical springs to the effect of the design according to FIGS. 2, 3.
Of course, a �kinematically reverse� design is also possible with the first hinge part 2 being assigned to the vehicle door and the second hinge part 4 being assigned to the positionally fixed vehicle part.
In a further advantageous refinement of the invention�see FIG. 2 in particular�it is provided that the hinge pin 6, in its upper end region lying axially opposite the fixed connection to the first hinge part 2, is also supported against lateral play movements relative to the second hinge part 4 via a counter bearing arrangement 72. This counter bearing arrangement 7 is a rotatable guide, in particular in the region of the cover element 48, for which purpose a bearing opening 74 in the housing cover 48 rotatably holds one bearing end 76 of the hinge pin 6�preferably via an additional bearing bushing 78. This advantageous measure avoids lateral play movements of the upper end region of the hinge pin 6, which movements could otherwise lead to corresponding, undesirable movements of the door in the latching positions.
According to the invention, at least one of the two �sliding partners� interacting in each case therefore can always consist of a plastic material for the purpose of �refraction of sound� or �isolating of sound�. It is particularly advantageous, for example, to configure the runway in the region of its runway surface of a polyamide with a lubricant additive, in particular molybdenum sulfite (for example, PA6 MOS2), the sliding element, in the region of its sliding surface, consisting of a sintered metal, preferably with a lubricant diffused into it. The guide part can consist of, for example, extruded aluminum, for example F31, which may preferably be hard anodized as surface protection. The sliding element advantageously has a sliding radius of curvature of only approximately 2 mm. This also correspondingly applies to the radius of the latching depressions. Each latching depression merges via a transitional radius of, in particular, approximately 5 mm into the main radius R of the runway. Between the main radius R and the latching depressions the sliding element executes a radial movement stroke of preferably approximately 3 mm. A door-arresting moment of approximately 50 Nm can be achieved by the values mentioned by way of example.
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