WO2003072375A1 - Schwenkbare anhängevorrichtung für zugfahrzeuge - Google Patents
Schwenkbare anhängevorrichtung für zugfahrzeuge Download PDFInfo
- Publication number
- WO2003072375A1 WO2003072375A1 PCT/EP2003/002008 EP0302008W WO03072375A1 WO 2003072375 A1 WO2003072375 A1 WO 2003072375A1 EP 0302008 W EP0302008 W EP 0302008W WO 03072375 A1 WO03072375 A1 WO 03072375A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pull rod
- towing device
- towing
- housing
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/48—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
- B60D1/54—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting collapsible or retractable when not in use, e.g. hide-away hitches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/01—Traction couplings or hitches characterised by their type
- B60D1/06—Ball-and-socket hitches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/246—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for actuating the hitch by powered means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/514—Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/516—Means for holding or embracing insulating body, e.g. casing, hoods
- H01R13/518—Means for holding or embracing insulating body, e.g. casing, hoods for holding or embracing several coupling parts, e.g. frames
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/72—Means for accommodating flexible lead within the holder
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
- H01R27/02—Coupling parts adapted for co-operation with two or more dissimilar counterparts for simultaneous co-operation with two or more dissimilar counterparts
Definitions
- the invention relates to a pivotable hitch for towing vehicles with the features in the preamble of the main claim.
- Such a pivotable hitch is known from DE-A 100 23 640. It consists of a curved tie rod, which is mounted so that it can move about two rotary axes and is pivoted back and forth by a motor drive between an extended operating position and a retracted rest position. The two rotary axes are actuated one after the other, the translationally operating drive first rotating the pull rod for pivoting out of the operating position by means of an eccentric lever about an axis of rotation running along the rear end of the rod by 90 °. During this rotary movement, the axis of rotation is aligned vertically, the pull rod being moved during the rotary movement through a cutout required for this purpose in the visible region of the rear apron of the towing vehicle.
- the drawbar cannot move around the bottom of the rear apron or the bumper and needs the visually disadvantageous cut-out, which must be closed with a lid.
- the pull rod which now stands transversely, is pivoted about a direction aligned along the longitudinal direction of the vehicle
- Tilt axis whereby the pull rod disappears behind the rear apron and is no longer visible from the outside.
- This hitch has a complicated structure and requires a complex control or rod guide to maintain the required sequence of movements when turning and tilting. The tilting movement may only begin after the rotary movement has been completed, otherwise the pull rod on the would hit the rear apron and damage it.
- the pull rod is pivotally mounted about two rotatable axes that can be actuated one after the other and is moved by a mechanical drive between an extended operating position and a retracted rest position on the towing vehicle.
- the pull rod is swiveled out of the operating position using delicate lifting clips and then turned 90 ° behind the rear apron of the vehicle. In the rest position, the pull rod is visible from the outside.
- a further hitching device in which the drawbar is also biaxially movable, a translatory axis and a pivot axis cooperating here.
- the drive generates a translatory extension movement from the rest position, the at the end of the movement using a screw-like link
- Pull rod is moved by 90 ° from its initially transverse position to the standing position, which is required in the extended operating position. This arrangement only allows the drawbar to be drawn in linearly and from its in the operating position to the rear of
- the pivotable hitch device has the advantage that the pull rod can be brought from the operating position into a rest position in which it disappears behind the rear apron and is no longer visible. Due to the superimposed rotational movement, the required space for the pull rod movement is very small. In addition, no visible cutouts or other design changes are required on the rear of the towing vehicle, especially on the rear apron.
- the pull rod can collision-free around the lower edge of the in a spatially curved path
- the towing device With its mechanical system, the towing device is also very small and can also be accommodated in the rear of the vehicle in tight spaces.
- the overall depth in the longitudinal direction of the vehicle is particularly small and is in the range of 80 mm and less.
- the hitch has the further advantage that the movements can be precisely controlled.
- the hitch can be operated with a single mechanical drive, e.g. a drive motor or a manual crank drive or the like. , get along. This reduces the construction and cost.
- the socket holder can also be connected to the pull rod and moved with it. It is therefore also not visible in the rest position.
- a current transformer connected to the drawbar can be used.
- the superimposed rotational movement about the two axes is preferably implemented via a gear.
- the drive motor can be connected to the drawbar and moved with it. This has the advantage that the installation space can be reduced even further.
- the drawbar can be accommodated in the free position in the cross member of the towing vehicle, where it is also particularly well protected.
- the transmission can have two transmission parts coupled to one another. These can be designed differently, which means that the trailer device can be adapted to the given space conditions and to different vehicles within wide limits.
- the known hitching devices do not offer this flexibility.
- the hitch also has the advantage that it can be sealed very well against environmental influences from the outside.
- the housing surrounds the drive, the gearbox and the pivot bearing for the water and dustproof
- a seal can be provided which tightly closes the free space in the cross member and / or the rear opening on the underside of the rear of the vehicle.
- this seal can be designed as a lip seal, but alternatively also as a movable and controllable sealing part, the movement of which is derived from the drive or from the pivoting movement of the pull rod.
- the hitch can also be a
- the locking device is automatically actuated or released when the drawbar is extended and retracted.
- Figure 1 to 4 a hitch with parts of the
- FIG. 13 a perspective detailed illustration of the
- Figure 15 a partially broken perspective view of a second
- FIGS. 18 and 19 two further, even more broken open and abstracted perspective representations of the towing device from FIGS. 15 to 17,
- Figure 24 an enlarged perspective
- Figure 26 a side view of the pull rod of
- Figure 27 is a perspective side view of the
- FIGS. 1 to 4 show a hitch (1) at the rear
- FIG. 3 (3) of a towing vehicle (2) in a broken side view and in different movement positions.
- Figure 5 to 8 show the corresponding movement positions in a simplified representation and rear view from behind.
- Figures 9 to 11 show more detailed rear views and movement positions.
- the towing device (1) is assigned to the towing vehicle (2) and is concealed in a cavity in the rear of the vehicle (3), which has a rear opening (52) on the underside.
- the towing device (1) has a pull rod (8) which is preferably curved twice or essentially in a U shape and which has a suitable pulling head (12), e.g. carries a usual ball head.
- the pull rod (8) is preferably made of metal, e.g. Steel or light metal. After a first curvature (10), the rod neck (9) merges into a straight section sloping backwards and then via a further curvature (10) into a further straight and vertical rod end (11).
- Figures 1, 5 and 9 show the operating position (47) in which the extended pull rod (8) assumes the positions and orientations described above and is positioned with its ball head (12) ready for coupling at a distance in front of the rear apron (3).
- Figures 4, 8 and 11 show the retracted rest position (48) of the pull rod (8).
- the ball rod (8) is at least biaxially and preferably gimbal-mounted and is moved by a mechanical and preferably motorized drive (13).
- the drive motor (20) is preferably as
- Electric motor especially designed as a geared motor. It is supplied with operating voltage and control signals from the power supply of the towing vehicle (2) using a suitable cable tow.
- the towing device (1) also has a control (not shown), which is equipped with corresponding operating elements for positioning in the towing vehicle (2) or such Control elements already present on the vehicle side are connected. As a result, the towing device (1) can be moved back and forth between its end positions (47, 48), indicator lights or the like indicating the correct function or malfunction.
- the control can be operated from the vehicle interior, but alternatively also from the outside via a preferably wireless remote control by radio, infrared or the like.
- the tow cable can also be connected to an electrical socket (43) for the power supply of a trailer and supply the required operating voltage and signal or control voltages.
- the socket (43) is assigned to the pull rod (8) and can be moved with it. Via the central control of the
- the towing device (1) can be used to switch off the currents or voltages mentioned at the socket (43) in the rest position (48) and in the operating position (47).
- FIG. 26 shows a variant described below with a current transformer (84).
- the towing device (1) also has a locking device (56) with which the pull rod (8) can be locked in at least one of its end positions, preferably in both end positions (47, 48)
- the rear end of the rod (11) is rotatably mounted in a housing (19) about a central axis of rotation (18) by means of a rotary bearing (17).
- the housing (19) is in turn mounted on a cross member (4) in the rear area (3) of the towing vehicle (2) via a pivot axis (16) lying transversely to the axis of rotation (18) and an associated pivot bearing (15).
- the rotary axes (16, 18) are preferably oriented at right angles to one another in the manner of a gimbal and intersect.
- the pivot axis (16) preferably extends along the longitudinal axis of the towing vehicle.
- the cross member (4) can be part of the hitch (1). However, it can also be provided on site by the towing vehicle.
- the socket (43) is preferably attached to the housing (19) with a plate-shaped or web-shaped socket holder (44).
- the drawbar (8) can be moved from the extended operating position (47) shown in FIGS. 1, 5 and 9 to a retracted rest position (48) shown in FIGS. 4, 8 and 11 thanks to the cardanic bearing.
- Figure 2, 3, 6, 7 and 10 show the intermediate positions assumed.
- the pull rod (8) executes a superimposed and at least partially simultaneous rotational movement about both rotary axes (16, 18).
- the pull rod (8) rotates about its axis of rotation (18) at the rod end (11) by preferably 90 °, whereby it moves through the pivoting movement of the housing (19) through a larger angle of e.g. Is moved 180 ° to 190 ° around the swivel axis (16).
- the double-curved pull rod (8) moves with its ball head (12) in a less protruding path under the lower end of the rear apron (3) and can then dip into the cavity (7) behind the rear apron (3).
- the pull rod (8) and the moving socket (43) can no longer be seen from the outside. The parts are completely hidden behind the rear apron (3).
- the pull rod (8) assumes a position oriented transversely to the longitudinal axis of the vehicle, in which it points upward with its curvatures (10).
- the pivoting movements of the pull rod (8) can be limited by relatively fixed stops (55, 72) on the cross member (4).
- the hitch has
- the seal (51) can close the free space (7) explained in more detail below, at least in the rest position (48) of the pull rod (8). It can e.g. consist of a lip seal or a slide or the like of another construction connected to the pull rod (8) and movable to and fro at the rear opening.
- the components of the towing device (1) are protected in the cavity of the rear of the vehicle (3), while on the other hand protective caps or other covers of the ball head (12) can be dispensed with.
- the protected arrangement is also advantageous for the current transformer (84).
- the mechanical drive (13) has a device (14) for generating the superimposed rotational movement of the pull rod (8) about the two rotary axes (16, 18).
- the device (14) is preferably designed as a multi-part gear (21) which consists of a swivel gear (22) and a rotary gear (23).
- the cross member (4) has in the preferably central area, where usually the hitch (1) on the ' towing vehicle
- the cross member (4) consists, for example, of two support tubes (5) or other suitable support elements which are oriented transversely to the vehicle longitudinal axis and which are laterally spaced from one another in the vehicle longitudinal direction in the central region of the vehicle, forming the free space (7).
- the free space (7) is laterally limited by two parallel support plates
- the support plates (6) each form a pivot bearing part (39) in the middle, which e.g. is designed as a bearing eye, in that the second peg-like pivot bearing parts (38) connected to the housing (19) are rotatably mounted and, if necessary, displaceably mounted and guided in connection with the locking device (56).
- the device (14) for generating the superimposed rotational movements is preferably designed as the two-part gear (21) mentioned, which couples the rotary axes (16, 18).
- One gear part is designed as a swivel gear (22) and acts on the swivel axis (16).
- the other gear part is designed as a rotary gear (23) and acts on the axis of rotation (18).
- the gear parts (22, 23) are coupled to one another in terms of movement, the rotary movement about the axis of rotation (18) preferably being derived from the larger pivoting movement about the pivot axis (16) in this exemplary embodiment.
- the drive motor (20) first generates the pivoting movement of the housing (19) with the pull rod (8) mounted therein about the pivot axis (16), from which the rotational movement of the pull rod (8) about the axis of rotation (18) is derived.
- the rotary driving motor (20) in all variants is flanged to the housing (19) at the end. It is connected to a drive element (24) of the swivel gear (22), which is designed, for example, as a worm shaft and engages with a relatively fixed support element (25).
- a drive element (24) of the swivel gear (22) which is designed, for example, as a worm shaft and engages with a relatively fixed support element (25).
- This is, for example, an annular toothed ring (25) shown in FIGS. 12, 16 and 20, which is fixed stationary on the support plate (6) by means of a support ring (31) or temporarily stationary when a locking device (56) exists.
- the ring gear (25) and the congruent support ring (31) are arranged concentrically to the pivot axis (16) and have a circular through opening on the inside for the bearing journal (38) of the pivot bearing (15) on the housing (19).
- the ring gear (25) is preferably arranged on the side of the cross member (4) facing the rear of the vehicle (3).
- the arrangement can alternatively be reversed.
- the ring gear (25) and the support ring (31) can be connected to one another and formed in one piece.
- the tangential worm gear meshes with the inwardly directed ring gear (25).
- the rotary gear (23) is arranged in the housing (19) and consists of a transversely movable rack (26) oriented perpendicular to the worm shaft (24) and along the pivot axis (16) and a gear (29) attached to the rod end (11) ,
- the rack (26) is provided on one longitudinal side with a toothing which meshes with the gear (29).
- the rack (26) is guided in the housing (19) so that it can move transversely and is mounted so that it cannot rotate. It is moved together with the pull rod (8) during the pivoting movement of the housing (19) and is guided on one or both rack ends (28) on one or two lateral stationary cam tracks (30).
- At the rack end (28) there are also guides or flats (27) which guide the rack (26) on the housing (19) into openings (42) and prevent undesired rotation of the rack (26) about its longitudinal axis and the engagement secure with the gear (29).
- cam tracks (30) located opposite one another and arranged concentrically to the pivot axis (16), which have mutually complementary elevations and depressions in their cam track. These heights and valleys are aligned along the pivot axis (16), so that the rack (26) is guided according to the rotational position of the housing (19) by being guided along the curved tracks
- Curved track (30) so that the drive motor (20) only causes a further pivoting movement of the housing (19) together with the pull rod (8) into the rest position (48).
- the pull rod (8) dips into the free space (7) of the cross member (4) and is housed in it protected.
- the socket (43) is also moved through the free space (7) and disappears from the field of vision at the rear of the vehicle (3).
- the gimbal mounting of the pull rod (8) mentioned at the beginning consists of the pivot bearing (15) of the housing (19) and the pivot bearing (17) of the pull rod * (8) in the housing (19).
- the rod end (11) has two pivot bearing surfaces (37) axially separated from one another by a securing groove (35), which interact with corresponding counter bearing surfaces in the interior of the housing (19) (not shown).
- the pivot bearing (17) supports the tensile forces acting on the trailer and is designed to be correspondingly stable. It can include a plain bearing or a roller bearing.
- An axial lock (33) is provided to secure the position of the rod end (11).
- securing bracket (34) which is guided in a transversely displaceable manner in the housing (19) and which engages positively on the inside in the securing groove (35) and thereby axially supports the pull rod (8).
- the securing bracket (34) projects out of the housing (19) with a tab and can be moved back and forth over it. This allows the tie rod (8) to be removed if necessary.
- the pivot bearing (15) of the housing (19) is formed by the aforementioned bearing pins (38) in interaction with the bearing eyes (39) arranged on the support plates (6).
- the housing (19) has an annular groove concentric with the bearing journal (15) on the two outer sides, which forms an additional guide part (40).
- the stationary ring gear (25) with one support ring (31) and the other support ring (32) engage on both sides of the ring grooves (40).
- At the bottom of the annular groove (40) are also the aforementioned openings (42) for the rack ends (28), which can thereby come into contact with the inside , curved tracks (30) of the support rings (31, 32).
- At the bottom of the annular groove (40) there is also a further opening (42) for the worm shaft (24) which can thereby mesh with the stationary ring gear (25).
- Figure 14 shows this housing design.
- the housing (19) tightly encloses the internal components, such as the drive motor (20), the transmission (21) or the transmission parts (22, 23) and the pivot bearing (17), and prevents access seals from moisture, dust or other environmental influences.
- the support rings (31, 32) can have circumferential grooves for receiving sealing rings or the like have on the outside of the shell of the pot-shaped guide part (40) of the housing (19). This also seals the openings (41, 42).
- FIGS. 15 to 19 show a second variant of the drive (13) and the transmission (21), as also shown in FIGS. 9 to 11.
- the relatively stationary support element (25) is a gear (68) shown in FIGS. 16 and 17, preferably a worm gear, which is temporarily fixed on a support ring (31) on the adjacent support plate (6).
- the gear (68) is also part of the locking device (56).
- the tangential worm shaft (24) meshes with the externally toothed gear (68).
- the rigid connection between the support ring (31) and the gearwheel (68) can be released, the gearwheel (68) rotating relative to the support ring (31) and optionally also a translatory movement directed along the axis (16) to the front of the vehicle performs. This will be discussed in more detail below.
- the rotary gear (23) is arranged in the housing (19) relatively stationary support ring (31). This arrangement can be seen in FIGS. 16 and 17.
- the pivot bearing of the rod end (11) is the same as in the first variant from FIGS. 12 to 14, the two pivot bearing surfaces (37) being arranged on both sides of the ring gear (53).
- the housing (19) has an arcuate opening in the region of the dental arch (54) through which the dental arch (54) can reach and mesh with the toothed ring (53).
- the toothed arch (54) and the toothed ring (53) can have an arrangement and design of the toothing which is suitable for this and which is matched to the desired superimposition of the rotary and pivoting movements. This applies on the one hand to the gear ratio and on the other hand to the arrangement and length of the dental arch (54). As soon as the tie rod (8) dips into the free space (7) of the cross member (4), the ring gear comes
- FIGs 20 to 29 show the third variant of the drive (13) and the transmission (21).
- the rotary gear (23) is formed by an annular toothed ring (81) attached to the end of the support ring (31) and a toothed ring (73) on the rod end (11).
- the toothed ring (73) is rotatably mounted on the rod end (11) about the axis of rotation (18). and guided in the axial direction.
- the rotary movement is controlled by a locking element (74), which is preferably designed as a ball, which is received in a ball nest (75) on the toothed ring (73).
- the ball (74) can only carry out radial displacement movements with respect to the axis of rotation (18).
- the ball (74) cooperates with a latching opening (76) at the rod end (11) which, in engagement with the ball (74), blocks the rotational movement of the toothed ring (73) and a rotational connection between the pull rod (8) and the toothed ring ( 73) produces.
- the angular position of the latching opening (76) with respect to the axis of rotation (18) or the central plane of the curved tie rod (8) is selected such that the rotational connection when the tie rod (8) is pivoted out after a pivoting movement of approximately 90 ° and in an operating position according to FIG , 10 and 21.
- Rotary connection on the toothed ring (73) rotates the pull rod (8) when the housing (19) swivels until a fixed stop on the rod bearing (not shown) is reached.
- This impact resistance forces the ball (74) out of the latching opening (76), which eliminates the rotational connection and the toothed ring (73) can rotate freely with respect to the rod end (11).
- the pull rod (8) then maintains its rotational position for the remaining swivel path until it reaches the rest position (48) according to FIG. 20.
- the latching opening (76) can have flattened opening flanks (77) in order to facilitate the entry and exit of the ball (74).
- Figure 26 shows this arrangement.
- the rod end (11) can have an annular groove in the region of the toothed ring (73), with which the size and the diameter of the arrangement can be reduced. On the ring groove can also be dispensed with.
- Figure 27 shows the housing (19), which is designed somewhat differently in the third variant than in the other exemplary embodiments.
- Figures 28 and 29 show the
- the housing (19) has at the bottom of its guide part (40), which is provided for the inside guidance of the gear wheel (68), an opening (82) for the inside ring gear (73), which has the passage for connection to the outside ring gear (81), which lies in the view of FIG. 27 in the viewing direction in front of the guide part (40).
- the housing (19) also has two or more openings (83) on the guide part (40) for the locking balls (78) explained in more detail below.
- the bearing pin (38) engages through the stationary support ring (31), which also forms the bearing eye.
- the other bearing journal (38) is mounted directly in the cross member (4).
- At least one locking device (56) is provided to secure the pull rod (8) in at least one of its end positions, preferably at least the operating position (47).
- This has a transmission device (57) for converting the rotating drive movement into a translational locking movement for the actuation of positive locking elements (58, 59) which act on the pull rod (8) and possibly also on the housing (19).
- Embodiments of the locking device (56) and the transmission device (57) for the operating position (47) are shown, which can be used for the first and second variants of the drive (13) and the transmission (21).
- the initially rigid connection between the gear (68) and the support ring (31) is released for the locking, whereby the gear (68) can rotate itself about the pivot axis (16). This rotary movement is used to generate the translatory
- Stop position is firmly seated, which can only be released when the pull rod (8) or possibly also the housing (19) against the stop (55) in the end position.
- Bolt elements (58, 59) designed as toothed strips (60, 61) and arranged on the cross member side facing the front of the vehicle.
- the toothed strips (60, 61) are brought into positive engagement with one another by a translatory displacement movement of the pull rod (8) and the housing (19).
- toothed strips (60) which extend horizontally both on the housing (19) and on the rod collar (36) are provided, which engage corresponding counter toothed strips (61) on the adjacent support plate (6).
- the toothed strips (60, 61) have a plurality of teeth with a preferably trapezoidal cross section, which, thanks to large wings, allow the support of high transverse forces acting on the pull rod (8), in particular the ball head (12).
- the locking device (56) is shown in the starting position at the beginning of the locking movement, in which the locking elements (58, 59) are distanced and not yet . mesh.
- the support ring (31) is designed as a threaded sleeve (67) with an outside movement thread (66).
- Figures 18 and 19 show this arrangement.
- the gear wheel (68) has a corresponding internal thread.
- Movement thread (66) is greater than the resistance to the pivoting movements of the pull rod (8). However, as soon as the stop position of FIG. 16 is reached, the further rotating worm shaft (24) can turn the gear (68) on the movement thread (66).
- the gearwheel (68) is at least partially surrounded by the housing (19) and is guided there on both sides via corresponding guide means (69).
- the gear (68) can hereby move with respect to the screw in
- Swivel axis (16) to the opposite support plate (6) are displaced, whereby the locking elements (58, 59) arranged there come into engagement.
- the drive motor (20) can be switched off in a suitable manner, e.g. via limit switches or a motor current measurement.
- the housing (19) can have one or more rotation locks.
- a locking pin (70) arranged next to the toothed strips (60) and aligned parallel to the axis (16), which engages in a corresponding receiving opening on the support plate (6) when locked. If, in order to pivot the drawbar (8) into the rest position (48), the lock in the operating position (47) is to be released again, the turnstile (70) prevents the housing (19) from rotating about the pivot axis (16), so that the drive motor (20) first, by means of the worm shaft (24), rotates the gear (68) in the opposite direction • back to the stop position and at the same time moves the housing (19) with the pull rod (8) out of the locked position.
- the locking pin (70) is longer than the tooth height of the toothed strips
- the translational locking stroke can e.g. approx. 4 mm.
- the locking elements (58, 59) are designed as locking balls (62, 63, 64), their translational locking movement being caused by concentrically curved
- Link guides (71) on the gearwheel (68) are effected, which have guide surfaces that rise obliquely outwards in the direction of rotation for displacing the locking balls (62, 63, 64).
- the gear wheel (68) does not need to perform its own translatory displacement movement. It is therefore preferably only rotatably and non-displaceably mounted on the support ring (31) attached to the support plate (6).
- one or more ball receptacles (65) are arranged, into which the respective locking ball (62, 63) can be inserted.
- the ball seats (65) are in Cross-section circular and offer a side guide for the locking balls (62,63). They are also arranged at different angular positions with respect to the axis of rotation (18) and also at different axial heights at the rod end (11). Figure 26 shows this
- the locking balls (62, 63) roll on the outer circumference of the rod end (11) or the pivot bearing surface (37) and are pushed back and immersed in their guides on the housing (19) (not shown). As a result, the locking balls (62, 63) also act as a turnstile for the gear (68). The retracted locking balls (62, 63) cannot slide on the link guides (71) and thus lock their rotational movement about the axis (16).
- Link guides (71) and additional locking balls (64) can be pushed into corresponding ball receptacles (not shown) on the housing (19) or on the adjacent support plate (6) and an additional positive
- the gear wheel (68) is moved backwards via the drive motor (20) until a stop (not shown) is reached and the link guides the locking balls (62, 63, 64) again release.
- the angle of rotation of the gear (68) is limited accordingly.
- the gear wheel (68) again acts as a support element (25), so that the further drive movement causes the housing (19) to rotate about the pivot axis (16) in order to pivot the ball rod (8).
- the locking device (56) is also able to lock the pull rod (8) in the retracted rest position (48). This is also done by means of a locking element (78), preferably a locking ball, which is guided in a transversely movable manner in an opening (83) of the housing (19). In the rest position (48), the locking ball (78) positively engages in a latching opening (79) on the pull rod (8), in particular on the rod end (11).
- a locking element (78) preferably a locking ball
- Locking ball engagement is effected by a link guide (80) on the gearwheel (68), which is actuated by a gearwheel rotation and pushes the locking ball (78) into the latching opening (79).
- the gearwheel rotation is achieved similarly to the locking in the operating position (47) by the drive motor (20) and the worm shaft (24) continuing to run when the pull rod (8) in the rest position hits the stop (72) shown in FIG ,
- the locking opening (79) can have a little oversize, so that the locking takes place with slight play.
- the locking ball (78) can have a double function and, in the operating position (47), engage the ball seat (65), which is angularly offset at the same height as the latching opening (79).
- the towing device (19) can have a current transformer (84) connected to the pull rod (8), which is shown schematically in FIG.
- the Power transformer (84) conducts power and signal currents from the towing vehicle via the towing device (1) to the trailer via the attached towbar (89).
- At least one line (87) for power and signal currents is laid in or on the pull rod (8) and is connected to a voltage supply and a decoder (85) on the towing vehicle side.
- the current is transmitted through two or more contacts (88, 89) in the ball head (12) and in the coupling socket.
- the contacts (88, 89) can be spring-loaded in order to establish a safe contact under all operating conditions.
- the trailer-side contact (89) is also connected via a line (87) to the trailer's power consumers, for example the trailer lighting, the turn signals or the like.
- the signal line is connected to an encoder (86) on the trailer side.
- relevant information for example the function of the lighting, a turn signal or the like, is converted into corresponding signals, which are fed to the decoder (85) either separately or by superimposing the power currents, where they are decrypted and for further use will be forwarded for example, output an alarm message or 'the like. to the towing vehicle.
- the device (14) for generating the superimposed rotational movement of the pull rod (8) can have two drive motors with common control, each of which independently and directly act on the rotary axes (16, 18) and are mutually controlled accordingly for producing the superimposed rotational movement.
- the towing device (1) can also have other translatory and / or rotary have additional axes.
- the mechanical drive (13) can also have one or more manually operated drive parts, for example a crank drive, instead of a drive motor (20).
- the gear (21) can be designed in a variety of other ways. Instead of normal gear wheel connections, other suitable and preferably positive connections can also be used. It is also possible to provide relatively stationary support elements on the cross member (4), which are connected in a meshing manner to a corresponding drive wheel at the rod end (11) so that the pivoting movement of the housing is transmitted directly to the pull rod rotation. By choosing the interventions and especially the translations, there are also options for variation and adaptation. It is also possible to reverse the derivation of the rotary movements and to assign the drive motor to the axis of rotation (18), the pivoting movement of the housing (19) and the pull rod (8) then being derived from the rotary movement. The configurations of the bearings, the assignments and orientations of the rotary axes are also variable. The other parts of the towing device (1), in particular the shape of the pull rod (8), can also be modified in any suitable manner.
- any other suitable positive locking elements can be used, for example pins or feather keys, which engage in one another when the housing (19) and the pull rod (8) are moved in a translatory movement. Modifications are also possible with regard to the second exemplary embodiment with the locking balls. Instead of the locking balls, rollers or the like, other suitable locking elements can be rotated by the Gear (68) are set in a translational locking movement.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
- Handcart (AREA)
- Automotive Seat Belt Assembly (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Agricultural Machines (AREA)
Abstract
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003210372A AU2003210372A1 (en) | 2002-02-28 | 2003-02-27 | Pivotable towing device for towing vehicles |
| US10/506,174 US7273222B2 (en) | 2002-02-28 | 2003-02-27 | Pivotable towing device for towing vehicles |
| DE50302195T DE50302195D1 (de) | 2002-02-28 | 2003-02-27 | Schwenkbare anhängevorrichtung für zugfahrzeuge |
| EP03742875A EP1478528B1 (de) | 2002-02-28 | 2003-02-27 | Schwenkbare anhängevorrichtung für zugfahrzeuge |
| EP03018477A EP1407901B2 (de) | 2002-10-09 | 2003-08-14 | Anhängevorrichtung für Zugfahrzeuge |
| DE50303349T DE50303349D1 (de) | 2002-10-09 | 2003-08-14 | Anhängevorrichtung für Zugfahrzeuge |
| AT03018477T ATE326356T1 (de) | 2002-10-09 | 2003-08-14 | Anhängevorrichtung für zugfahrzeuge |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE20203270U DE20203270U1 (de) | 2002-02-28 | 2002-02-28 | Schwenkbare Anhängevorrichtung für Zugfahrzeuge |
| DE20203270.1 | 2002-02-28 | ||
| DE20215508.0 | 2002-10-09 | ||
| DE20215508U DE20215508U1 (de) | 2002-10-09 | 2002-10-09 | Anhängevorrichtung für Zugfahrzeuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003072375A1 true WO2003072375A1 (de) | 2003-09-04 |
Family
ID=27766907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/002008 Ceased WO2003072375A1 (de) | 2002-02-28 | 2003-02-27 | Schwenkbare anhängevorrichtung für zugfahrzeuge |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7273222B2 (de) |
| EP (1) | EP1478528B1 (de) |
| AT (1) | ATE315490T1 (de) |
| AU (1) | AU2003210372A1 (de) |
| DE (1) | DE50302195D1 (de) |
| WO (1) | WO2003072375A1 (de) |
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| EP1516755A1 (de) * | 2003-09-17 | 2005-03-23 | Westfalia Automotive GmbH & Co. KG | Schwenkbare Anhängekupplung |
| EP1533149A1 (de) | 2003-11-21 | 2005-05-25 | Westfalia Automotive GmbH & Co. KG | Anhängerkupplung für Kraftfahrzeuge |
| EP1544003A1 (de) * | 2003-12-20 | 2005-06-22 | Westfalia-Automotive GmbH & Co. KG | Anhängekupplung für Personenkraftfahrzeuge |
| EP1557299A1 (de) * | 2004-01-22 | 2005-07-27 | ORIS FAHRZEUGTEILE HANS RIEHLE GmbH | Anhängekupplung |
| NL1026198C2 (nl) * | 2004-05-14 | 2005-11-15 | Brink Internat B V | Verdraaibare trekhaak. |
| EP1612081A1 (de) | 2004-06-30 | 2006-01-04 | Westfalia Automotive GmbH & Co. KG | Verfahren und Vorrichtung zum Betreiben eines Kraftfahrzeuges mit einer Anhängekupplung |
| DE102004044912A1 (de) * | 2004-09-14 | 2006-03-30 | Mvg Metallverarbeitungsgesellschaft Mbh | Anhängekupplung mit Kugelgelenk |
| EP1894752A1 (de) | 2006-09-01 | 2008-03-05 | Brink International B.V. | Anhängerkupplung mit ein- und ausfahrbarem Zughaken |
| WO2008049569A1 (de) * | 2006-10-25 | 2008-05-02 | Rheinisch-Westfälische Technische Hochschule Aachen | Anhängevorrichtung |
| WO2009112217A1 (de) * | 2008-03-13 | 2009-09-17 | Schaeffler Kg | Verschwenkbare anhängerkupplung |
| EP2636546A1 (de) * | 2012-03-07 | 2013-09-11 | WESTFALIA - Automotive GmbH | Kupplungssteuervorrichtung und damit ausgestattete Anhängekupplung |
| EP1790504B2 (de) † | 2005-11-25 | 2014-07-30 | Scambia Holdings Cyprus Limited | Antriebseinheit für eine Anhängerkupplung |
| EP2567835B1 (de) | 2011-09-12 | 2016-08-10 | Scambia Holdings Cyprus Limited | Anhängekupplung |
| EP2266820B2 (de) † | 2006-07-29 | 2019-10-02 | Bosal ACPS Holding 2 B.V. | Anhängekupplung |
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| DE102005053177A1 (de) * | 2005-11-03 | 2007-05-10 | Scambia Industrial Developments Aktiengesellschaft | Betätigungseinrichtung |
| DE202006011346U1 (de) | 2006-07-20 | 2007-11-22 | Al-Ko Kober Ag | Schwenkbare Anhängevorrichtung für Zugfahrzeuge |
| US7766387B1 (en) * | 2007-08-02 | 2010-08-03 | Onspot Of North America, Inc. | Anti-skid tire chain device |
| KR100835599B1 (ko) | 2007-08-08 | 2008-06-05 | 정관선 | 분리가능한 트레일러 견인장치 |
| DE102008030626A1 (de) * | 2008-06-23 | 2009-12-31 | Scambia Industrial Developments Aktiengesellschaft | Anhängekupplung |
| DE102009015916A1 (de) † | 2009-03-25 | 2010-10-07 | Scambia Industrial Developments Aktiengesellschaft | Anhängekupplung |
| USD623098S1 (en) * | 2009-04-24 | 2010-09-07 | Curt Manufacturing, Inc. | Bicolored drop ball hitch |
| USD610954S1 (en) * | 2009-04-24 | 2010-03-02 | Curt Manufacturing, Inc. | Curved ball hitch |
| USD610051S1 (en) * | 2009-04-24 | 2010-02-16 | Curt Manufacturing, Inc. | Sided drop ball hitch |
| USD610493S1 (en) * | 2009-04-24 | 2010-02-23 | Curt Manufacturing, Inc. | Drop ball hitch |
| USD623561S1 (en) * | 2009-04-24 | 2010-09-14 | Curt Manufacturing, Inc. | Bicolored curved ball hitch |
| USD623563S1 (en) * | 2009-04-24 | 2010-09-14 | Curt Manufacturing, Inc. | Bicolored sided drop ball hitch |
| US20100270774A1 (en) * | 2009-04-28 | 2010-10-28 | Midway Products Group, Inc. | Rotatable Trailer Hitch |
| KR101272928B1 (ko) * | 2011-11-29 | 2013-06-11 | 현대자동차주식회사 | 차량용 히치리시버 장치 |
| DE202012102727U1 (de) | 2012-07-20 | 2013-10-24 | Trimas Corporation (Germany) Gmbh | Schwenkbare Anhängevorrichtung für Zugfahrzeuge |
| DE102013018735A1 (de) * | 2013-11-08 | 2015-05-13 | Westfalia-Automotive Gmbh | Anhängekupplung mit einer Fixiereinrichtung |
| DE102014118879A1 (de) * | 2014-12-17 | 2016-06-23 | Scambia Holdings Cyprus Limited | Anhängekupplung |
| DE102016119393A1 (de) * | 2016-10-07 | 2018-04-12 | Westfalia-Automotive Gmbh | Anhängekupplung mit einer Anschlussvorrichtung |
| DE102018201019A1 (de) | 2017-02-28 | 2018-08-30 | Fidlock Gmbh | Verschlussvorrichtung mit einem Wickelelement |
| DE102017109488A1 (de) * | 2017-05-03 | 2018-11-08 | ACPS Automotive GmbH | An einem Heckbereich eines Kraftfahrzeugs montierbare Halteeinrichtung |
| DE102018201021A1 (de) * | 2017-11-14 | 2019-05-16 | Fidlock Gmbh | Verschlussvorrichtung mit einem Wickelelement |
| EP3727901B1 (de) | 2017-12-20 | 2025-09-24 | Horizon Global (South Africa) (Pty) Ltd | Deichsel mit einem kupplungskugelsystem |
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- 2003-02-27 AT AT03742875T patent/ATE315490T1/de not_active IP Right Cessation
- 2003-02-27 WO PCT/EP2003/002008 patent/WO2003072375A1/de not_active Ceased
- 2003-02-27 EP EP03742875A patent/EP1478528B1/de not_active Expired - Lifetime
- 2003-02-27 AU AU2003210372A patent/AU2003210372A1/en not_active Abandoned
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1516755A1 (de) * | 2003-09-17 | 2005-03-23 | Westfalia Automotive GmbH & Co. KG | Schwenkbare Anhängekupplung |
| EP1533149A1 (de) | 2003-11-21 | 2005-05-25 | Westfalia Automotive GmbH & Co. KG | Anhängerkupplung für Kraftfahrzeuge |
| DE10354753B4 (de) * | 2003-11-21 | 2014-07-24 | Westfalia-Automotive Gmbh | Anhängekupplung für Kraftfahrzeuge |
| EP2088008A1 (de) | 2003-11-21 | 2009-08-12 | Westfalia Automotive GmbH & Co. KG | Anhängerkupplung für Kraftfahrzeuge |
| EP1544003A1 (de) * | 2003-12-20 | 2005-06-22 | Westfalia-Automotive GmbH & Co. KG | Anhängekupplung für Personenkraftfahrzeuge |
| EP1557299A1 (de) * | 2004-01-22 | 2005-07-27 | ORIS FAHRZEUGTEILE HANS RIEHLE GmbH | Anhängekupplung |
| NL1026198C2 (nl) * | 2004-05-14 | 2005-11-15 | Brink Internat B V | Verdraaibare trekhaak. |
| WO2005110781A1 (en) * | 2004-05-14 | 2005-11-24 | Thule Towing Systems B.V. | Rotatable tow hitch for a vehicle |
| EP1612081A1 (de) | 2004-06-30 | 2006-01-04 | Westfalia Automotive GmbH & Co. KG | Verfahren und Vorrichtung zum Betreiben eines Kraftfahrzeuges mit einer Anhängekupplung |
| DE102004031467B4 (de) * | 2004-06-30 | 2016-09-22 | Westfalia-Automotive Gmbh | Verfahren und Vorrichtung zum Betreiben eines Kraftfahrzeuges mit einer Anhängekupplung |
| DE102004044912A1 (de) * | 2004-09-14 | 2006-03-30 | Mvg Metallverarbeitungsgesellschaft Mbh | Anhängekupplung mit Kugelgelenk |
| EP1790504B2 (de) † | 2005-11-25 | 2014-07-30 | Scambia Holdings Cyprus Limited | Antriebseinheit für eine Anhängerkupplung |
| EP2266820B2 (de) † | 2006-07-29 | 2019-10-02 | Bosal ACPS Holding 2 B.V. | Anhängekupplung |
| EP1894752A1 (de) | 2006-09-01 | 2008-03-05 | Brink International B.V. | Anhängerkupplung mit ein- und ausfahrbarem Zughaken |
| WO2008049569A1 (de) * | 2006-10-25 | 2008-05-02 | Rheinisch-Westfälische Technische Hochschule Aachen | Anhängevorrichtung |
| WO2009112217A1 (de) * | 2008-03-13 | 2009-09-17 | Schaeffler Kg | Verschwenkbare anhängerkupplung |
| EP2567835B1 (de) | 2011-09-12 | 2016-08-10 | Scambia Holdings Cyprus Limited | Anhängekupplung |
| EP2567835B2 (de) † | 2011-09-12 | 2021-03-17 | ACPS Automotive GmbH | Anhängekupplung |
| EP2636546A1 (de) * | 2012-03-07 | 2013-09-11 | WESTFALIA - Automotive GmbH | Kupplungssteuervorrichtung und damit ausgestattete Anhängekupplung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50302195D1 (de) | 2006-04-06 |
| US7273222B2 (en) | 2007-09-25 |
| EP1478528A1 (de) | 2004-11-24 |
| EP1478528B1 (de) | 2006-01-11 |
| US20050167946A1 (en) | 2005-08-04 |
| ATE315490T1 (de) | 2006-02-15 |
| AU2003210372A1 (en) | 2003-09-09 |
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