Drive cable for actuating a vehicle element

Abstract

A drive cable for actuating a vehicle element which is movable with respect to a vehicle design, which can have a cable body having a flexible cable core which is wrapped with a spiral, which follows a helical line so as to become engaged with a gearwheel. At least three longitudinal ribs or crosspieces can be formed along the periphery of the cable body, said drive cable being able to support itself in a cable guide via said longitudinal ribs which form at least mostly continuous guiding lines and contact lines of the drive cable, each having the same distance all around to the cable axis. Alternatively, an elastically or plastically malleable cable jacket can be provided which engages over the cable core and the spiral and which forms a cylindrical and rib-free peripheral surface of the cable when the cable core is stretched.

Claims

1. A drive cable for actuating a vehicle element which is movable with respect to a vehicle design, comprising: a cable body having a flexible cable core which is wrapped with a spiral which follows a helical line so as to become engaged with a gearwheel, wherein at least three longitudinal ribs or fillets are formed along the periphery of the cable body, the drive cable being able to support itself in a cable guide via the longitudinal ribs or fillets, which form at least mostly continuous guiding lines and contact lines of the drive cable, each having continuously the same distance to the cable axis, or in that an elastically or plastically malleable cable jacket is provided which engages over the cable core and the spiral, the cable jacket forming a cylindrically shaped rib-free peripheral surface when the cable core is stretched, the peripheral surface of the cable being arranged con-centric with respect to the cable axis.

2. The drive cable according to claim 1, wherein the longitudinal ribs extend parallel to the longitudinal direction of the cable core.

3. The drive cable according to claim 1, wherein the longitudinal ribs each follow a helical line which has a larger inclination than the helical line followed by the spiral.

4. The drive cable according to claim 3, wherein the helical line followed by the longitudinal ribs is arranged inversely to the helical line followed by the spiral.

5. The drive cable according to claim 1, wherein the longitudinal ribs are components of a jacketing of the cable body.

6. The drive cable according to claim 5, wherein the jacketing is an extruded layer.

7. The drive cable according to claim 5, wherein filling material is arranged between the jacketing and the cable body.

8. The drive cable according to claim 7, wherein the filling material comprises a plastically or elastically malleable material which in particular comprises a flock, a gel, a foam, a belt, a cord, a seal cord, a tube or the like, each preferably made of plastic.

9. The drive cable according to claim 5, wherein the jacketing is made of an elastically or malleable plastic.

10. The drive cable according to claim 1, wherein the longitudinal ribs are made of an elastically or malleable plastic.

11. The drive cable according to claim 1, wherein the elastically or plastically malleable cable jacket is realized by a cable sleeve which engages over the spiral.

12. The drive cable according to claim 11, wherein filling material is arranged between the cable sleeve and the cable core.

13. The drive cable according to claim 12, wherein the filling material comprises a plastically or elastically malleable material which in particular comprises at least one of a plastic flock, a gel, a foam, a belt, a cord, a seal cord, and a tube.

14. The drive cable according to claim 1, wherein the elastically or plastically malleable cable jacket surrounds the cable core and the spiral in an interlocking manner and fills gaps between the spiral windings.

15. The drive cable according to claim 1, wherein the elastically or plastically malleable cable jacket comprises an elastically malleable plastic.

16. A drive cable for actuating a vehicle element which is movable with respect to a vehicle design, comprising: a cable body having a flexible cable core which is wrapped with a spiral which follows a helical line so as to become engaged with a gearwheel, wherein at least three longitudinal ribs or fillets are formed along the periphery of the cable body, the drive cable being able to support itself in a cable guide via the longitudinal ribs or fillets, which form at least mostly continuous guiding lines and contact lines of the drive cable, each having continuously the same distance to the cable axis.

17. A drive cable for actuating a vehicle element which is movable with respect to a vehicle design, comprising: a cable body having a flexible cable core which is wrapped with a spiral which follows a helical line so as to become engaged with a gearwheel, in that an elastically or plastically malleable cable jacket is provided which engages over the cable core and the spiral, the cable jacket forming a cylindrically shaped rib-free peripheral surface when the cable core is stretched, the peripheral surface of the cable being arranged con-centric with respect to the cable axis.

Description

BRIEF DESCRIPTIONS OF THE DRAWINGS

(1) FIG. 1 shows a schematic top view of a vehicle roof having a drive unit for a movable lid element;

(2) FIG. 2 shows a perspective view of a first embodiment of a drive cable of the drive unit according to FIG. 1;

(3) FIG. 3 shows a) a side view of the drive cable and b) a longitudinal cut of the drive cable according to FIG. 2;

(4) FIG. 4 shows a cross section through the drive cable according to FIG. 2 in a cable channel;

(5) FIG. 5 shows a perspective view of another embodiment of a drive cable according to the invention;

(6) FIG. 6 shows a) a side view of and b) a longitudinal cut through the drive cable according to FIG. 5;

(7) FIG. 7 shows a cross section through the drive cable according to FIG. 5 in a cable channel;

(8) FIG. 8 shows a perspective view of another embodiment of a drive cable according to the invention;

(9) FIG. 9 shows a) a side view of and b) a longitudinal cut through the drive cable according to FIG. 8;

(10) FIG. 10 shows a cross section through the drive cable according to FIG. 8 in a drive channel;

(11) FIG. 11 shows a perspective view of another embodiment of a drive cable according to the invention;

(12) FIG. 12 shows a) a side view of and b) a longitudinal cut through the drive cable according to FIG. 11;

(13) FIG. 13 shows a cross section through the drive cable according to FIG. 11 in a cable channel;

(14) FIG. 14 shows a perspective view of another embodiment of a drive cable according to the invention;

(15) FIG. 15 shows a) a side view of and b) a longitudinal cut through the drive cable according to FIG. 14;

(16) FIG. 16 shows a cross section through the drive cable according to FIG. 14 in a cable channel;

(17) FIG. 17 shows a perspective view of another embodiment of a drive cable according to the invention;

(18) FIG. 18 shows a) a side view of and b) a longitudinal cut through the drive cable according to FIG. 17;

(19) FIG. 19 shows a cross section through the drive cable according to FIG. 17 in a cable channel;

(20) FIG. 20 shows a perspective view of another embodiment of a drive cable according to the invention;

(21) FIG. 21 shows a) a side view of and b) a longitudinal cut through the drive cable according to FIG. 20;

(22) FIG. 22 shows a cross section through the drive cable according to FIG. 20 in a cable channel;

(23) FIG. 23 shows a perspective view of another embodiment of a drive cable according to the invention;

(24) FIG. 24 shows a cross section through the drive cable according to FIG. 23 in a cable channel;

(25) FIG. 25 shows a longitudinal cut through the drive cable according to FIG. 23;

(26) FIG. 26 shows a perspective view of another embodiment of a drive cable according to the invention;

(27) FIG. 27 shows a cross section through the drive cable according to FIG. 26 in a cable channel;

(28) FIG. 28 shows a longitudinal cut through the drive cable according to FIG. 26;

(29) FIG. 29 shows a perspective view of another embodiment of a drive cable according to the invention;

(30) FIG. 30 shows a cross section through the drive cable according to FIG. 29 in a cable channel; and

(31) FIG. 31 shows a longitudinal cut through the drive cable according to FIG. 29.

DETAILED DESCRIPTION

(32) In FIG. 1, a vehicle roof 10 of a besides this not further illustrated passenger car is illustrated, comprising a roof opening 12 which can be opened or at least partially released as desired by means of a lid element 14. The lid element 14 is therefore a movable vehicle element as compared to the vehicle design.

(33) In order to be able to displace the lid element 14, the lid element 14 is connected to displacing kinematics which comprises a drive slider 16A and 16B on each of its two sides with respect to a vertical longitudinal center plane of the roof, said drive slider 16A or 16B being guided in a respective guide rail 18A or 18B extending in the longitudinal direction of the roof.

(34) A pressure-resistant drive cable is connected to each drive slider 16A and 16B. The drive cables 20A and 20B are guided to a shared drive motor 22 via respective guide tubes or cable channels and are engaged with a drive gearwheel 24 of the drive motor 22.

(35) The drive cables 20A and 20B are realized as being pressure-resistant and can be realized according to the embodiments illustrated in FIGS. 2 to 22.

(36) In FIGS. 2 to 4, a drive cable 30 is illustrated which comprises a cable body 31 made of a flexible cable core 32 and a spiral 33 which surrounds the cable core 32 along a helical line. The cable core 32 is either made of a one-piece steel wire or a steel braid. The spiral 33 also consists of a steel wire.

(37) The cable body 31, which consists of the cable core 32 and the spiral 33 and which thus forms a so-called helical cable, is provided with a jacketing 34 which is realized as a plastic extrusion layer.

(38) The jacketing 34, which covers the periphery of the cable body 31, has six longitudinal ribs 35 along its outer side, said longitudinal ribs 35 extending in the axial direction of the cable body 31, i.e. parallel to the neutral fiber of the cable core 32. The longitudinal ribs 35 are distributed on the jacketing 34 at equal distances in the peripheral direction, i.e. the planes of adjacent longitudinal ribs 35 intersect each other at an angle of 60.

(39) As can be seen in FIG. 4, the drive cable 30 supports itself in a guide channel or cable channel 60 via its longitudinal ribs 35 when installed, said guide channel or cable channel 60 being able to be formed on the guide rails 18A and 18B illustrated in FIG. 1, for example. In the section of the drive cable 30 which becomes engaged with the drive gearwheel 24 of the drive motor 22 while the lid element 14 is actuated, the jacketing 34 is deformed so that the drive gearwheel 24 and the spiral 33 of the cable body 31 can mesh. The jacketing 34 can be either elastically or plastically deformed.

(40) In FIGS. 5 to 7, a drive cable 40 according to the invention is illustrated which mostly corresponds to the drive cable illustrated in FIGS. 2 to 4, except in that it comprises a plastic jacketing 34 which is provided with twelve longitudinal ribs 35 arranged at equal distances to each other on its outer side, said drive cable 40 supporting itself in a guide channel 36 of a cable guide of a sliding roof drive via these longitudinal ribs 35. In all other respects, the drive cable according to FIGS. 5 to 7 corresponds to the drive cable according to FIGS. 2 to 4.

(41) In FIGS. 8 to 10, a drive cable 50 is illustrated which also mostly corresponds to the drive cable illustrated in FIGS. 2 to 4, except in that it comprises a jacketing 34 made of plastically malleable plastic, said jacketing 34 surrounding a cable body 31 made of a cable core 32 and a spiral 33 and comprising six longitudinal ribs 35 arranged at equal distances to each other at its outer side, said longitudinal ribs 35 each following a helical line. The helical lines, which are followed by the longitudinal ribs 35, are arranged inversely to the helical line, which is followed by the spiral 33 of the cable body 31. Moreover, the inclination of the helical line, which is followed by the longitudinal ribs 35, is a multiple of the inclination of the helical line, which is followed by the spiral 33.

(42) In all other respects, the drive cable 50 corresponds to the drive cable according to FIGS. 2 to 4.

(43) In FIGS. 11 to 13, a drive cable 60 is illustrated which also comprises a flexible cable body 31 made of a cable core 32, which is surrounded by a spiral 33 made of steel wire. In the peripheral direction, six thread-like longitudinal ribs 61, which extend in the axial direction of the cable body 31 and which are each made of a plastically malleable plastic, are formed on the cable body 31. The longitudinal ribs 61, which have an annular cross section, are not a component of a complete jacketing of the cable body 31. Indeed, the individual longitudinal ribs 61 are distanced to each other and are arranged between the individual windings of the spiral 33 with a distance to the cable core 32.

(44) As in the embodiments according to FIGS. 2 to 10, the drive cable 60 is guided in a guide channel 36 via the longitudinal ribs 61, said guide channel 36 being allocated to a roof opening system.

(45) In FIGS. 14 to 16, a drive cable 70 is illustrated which mostly corresponds to the drive cable illustrated in FIGS. 11 to 13, except in that it comprises longitudinal ribs 71 extending in the axial direction, said longitudinal ribs 71 engaging across the windings of the spiral 33 over the length of the drive cable 70 on the one hand and being contacted to the cable core 32 in the gaps between the individual windings of the spiral 33 on the other hand. The longitudinal ribs 71, which also consist of a plastically malleable plastic and via which the drive cable 70 is guided in a guide channel 36, have a parabolis cross section starting from the cable core 32 (cf. FIG. 16).

(46) In FIGS. 17 to 19, a drive cable 80 is illustrated which mostly corresponds to the drive cable illustrated in FIGS. 2 to 4, except in that it comprises a filling material 81, which is made of a gel, an open-pored foam or a flock and which fills the gaps between the individual windings of the spiral 33, between its cable body 31, which is made of a cable core 32 and a spiral 33, and its jacketing 34, which carries longitudinal ribs 35 extending in the axial direction.

(47) In all other respects, the drive cable 80 corresponds to the drive cable according to FIGS. 2 to 4.

(48) In FIGS. 20 to 22, a drive cable 90 is illustrated which also comprises a cable body 31 which is made of a flexible cable core 32 and a spiral 33 surrounding the cable core 32 along a helical line. The cable body 31 has a jacketing 34 which fills the gaps between the individual paths of the spiral 33. The jacketing 34 is made of an open-celled foaming material and comprises six longitudinal ribs 35 on its outer side, said longitudinal ribs 35 extending in the axial direction of the cable core 32 and engage across the spiral 33. The spiral 33 is free of the jacketing 34 between the longitudinal ribs 35 arranged at equal distances in the peripheral direction.

(49) As in the embodiments described above, the longitudinal ribs 35 of the drive cable 90 also serve for guiding the drive cable 90 in a guide channel or cable channel 36 in a rattle-free and chatter-free manner, said guide channel or cable channel 36 being formed on a guide rail 18A or 18B. In the section in which the drive cable 90 becomes engaged with a drive gearwheel 24 of a drive motor 22, the jacketing 34 is deformed by the drive gearwheel 24 so that the drive gearwheel 24 can mesh with the spiral 33.

(50) In all other respects, the embodiment according to FIGS. 20 to 22 corresponds to the embodiment according to FIGS. 2 to 4.

(51) In FIGS. 23 to 25, a drive cable 100 is illustrated which comprises a cable body 31 made of a flexible core 32 and a spiral 33, with which the cable core 32 is wrapped following a helical line. The cable core 32 is made of a one-piece steel wire or a steel braid. The spiral 33 also consists of a steel wire.

(52) The cable body 31, which consists of the cable core 32 and the spiral 33 and which forms a so-called helical cable, is provided with a cable jacket 102 which is a cable sleeve and which is made of a plastic extrusion layer. The cable sheath 102 engages entirely across the cable body 31, i.e. the cable core 32 and the spiral 33, and forms a closed and rib-free jacket surface or guide surface, which also bridges the gaps between the windings of the spiral 33. The guide surface, which is formed by the cable jacket 102 and which corresponds to the peripheral surface of the drive cable 100, is smooth and arranged concentrically with respect to the axis of the drive cable 100.

(53) The cable jacket 102 is made of an elastically malleable plastic so that it has a certain resilience and can resume its smooth form after the drive gearwheel has engaged. The malleability of the cable jacket 102 is required for ensuring a non-slip engagement between the drive gearwheel and the spiral 33.

(54) An alternative embodiment of a drive cable 110 is illustrated in FIGS. 26 to 28, said embodiment mostly corresponding to the embodiment illustrated in FIGS. 23 to 25, except in that it comprises a filling material 81 between the cable jacket 102 and the cable body 31 made of the cable core 32 and the spiral 33, said filling material 81 being made of a gel, an open-pored foam or a flock and filling the gaps between the individual windings of the spiral 33.

(55) In all other respects, the drive cable 110 corresponds to the drive cable according to FIGS. 23 to 25.

(56) In FIGS. 29 to 31, a drive cable 120 is illustrated which comprises a cable body 31 made of a cable core 32 and a spiral 33 according to the embodiments above, said spiral 33 surrounding the cable core 32 following a helical line. The spiral 33 is made of a steel wire and the cable core 32 can be made of a steel wire or a steel braid.

(57) The drive cable 120 further comprises a cable jacket 122, which is solidly made and which engages across the cable body 31, i.e. the cable core 32 and the spiral 33, in an interlocking manner and which forms a cylindrical and rib-free peripheral surface of the cable with respect to the extended direction of the cable core 32, said peripheral surface being realized smooth and without ribs. The cable jacket 122 is made of an elastically or plastically malleable plastic and forms the guide surface of the drive cable 120 in a guide channel 36 in which the drive cable 120 is guided.

LIST OF REFERENCES

(58) 10 vehicle roof

(59) 12 roof opening

(60) 14 lid element

(61) 16A, B drive slider

(62) 18A, B guide rail

(63) 20A, B guide cable

(64) 22 drive motor

(65) 24 drive gearwheel

(66) 30 drive cable

(67) 31 cable body

(68) 32 cable core

(69) 33 spiral

(70) 34 jacketing

(71) 35 longitudinal ribs

(72) 36 guide channel

(73) 40 drive cable

(74) 50 drive cable

(75) 60 drive cable

(76) 61 longitudinal ribs

(77) 70 drive cable

(78) 71 longitudinal ribs

(79) 80 drive cable

(80) 81 filling material

(81) 90 drive cable

(82) 100 drive cable

(83) 102 cable jacket

(84) 110 drive cable

(85) 120 drive cable

(86) 122 cable jacket