Abstract:
In exemplary implementations, a target rod is actuated. The target rod is part of a set of threaded, elongated rods, the longitudinal axes of which are substantially parallel to each other. The set of rods has an interior region and a perimeter region. Actuators induce vibrations in a set of perimeter rods. These vibrations are substantially perpendicular to the longitudinal axes. Furthermore, the vibrations are transmitted to interior rods, causing a target rod in the interior region to rotate about, and translate along, the longitudinal axis of the target rod. The target rod undergoes stick-slip motion relative to adjacent rods.
Abstract:
A threaded spindle (11), having a drive part (20), which has a longitudinal axis (A) and is mounted in a first journal (70), and having a threaded part (30), which has a longitudinal axis (B), and having a threaded nut (50), which is mounted in a second journal (80a; 80b) and in which the threaded part (30) is guided. The drive part (20) and the threaded part (30) are formed as separate parts and are each provided with at least one coupling element (25, 55), which are connected to each other in an articulated manner by plugging together. An offset of the longitudinal axes (A, B) can be compensated in this manner. The two-part threaded spindle (11) forms a threaded drive with the threaded nut (50) thereof, which can for example be used in a parking brake of a vehicle braking system.
Abstract:
A drive actuating a flap pivotably supported in or on an automobile, in particular actuating a fuel tank flap, comprising a push-push kinematics cooperating with one side of the flap, said push-push kinematics exhibiting the following features: a housing suitable for integration into an automobile, a pushbar supported in axially displaceable manner in the housing and which in all its axial positions partly projects through a housing aperture (34) out of the housing and which comprises an external actuating end cooperating the flap, a spring in the housing prestressing the pushbar to project from the housing, a rotatable ring which encloses the pushbar and which is supported in the housing in axially fixed manner at the outside of the pushbar, at least one groove running parallel to its axis and at least one protrusion at the inner circumference of said ring to engage said groove over a wide adjustment range of the pushbar, as a result of which the ring retains its rotational position in said range of the groove when the pushbar is displaced axially, a first deflection face, running obliquely to the axis of the pushbar, which is configured between the groove and the actuation end and which cooperates with the protrusion of the ring and rotates this ring through a predetermined angle when the pushbar is displaced by a predetermined excursion into the housing a locking recess pointing toward the actuation end and situated at the pushbar at a circumferential spacing from the first deflection and receiving the protrusion when the pushbar is released following the first excursion, as a result of which the pushbar following a return excursion is locked in a locked position in the housing, a second deflection face running obliquely to the pushrod axis between the locking recess and the actuation end, cooperating with the protrusion when the pushrod is moved out of the locked position by means of a second excursion farther into the housing, whereby the ring is rotated by a predetermined second angle and the protrusion is aligned with the groove and the pushbar is displaceable into its maximally extended position.
Abstract:
In a gear system and a rotary transducer provided with the gear system, the gear system includes a first part, a convex toothed wheel, a supporting body, relative to which the first part and the convex toothed wheel are rotationally mounted, and engaging elements which mesh with the toothed wheel according to the rotational position of the first part. The engaging elements carry out a movement with a radial directional component relative to the toothed wheel. A force with a tangential directional component is applied to the toothed wheel, the force being the result of the interaction between the engaging elements and the supporting body.
Abstract:
A linear motion apparatus is comprised of: a toothed rail (40); a linearly driving mechanism section (50) having a plurality of swinging plates (53), crankshafts (54, 55), and a casing (51); and guiding means for guiding the casing (51) relatively movably with respect to the toothed rail (40). The casing (51) includes: a pair of side portions (61, 62) which are guided by the guiding means on both sides, in a tooth width direction, of the rail (40); a pair of end plate portions (63, 64) which are located on opposite sides, as viewed in a longitudinal direction of the rail (40), of the swinging plates (53) and connect opposite end portions of the pair of side plate portions (61, 62); and a coupling member (521) which is located between the plurality of crankshafts (54, 55) as viewed in the longitudinal direction of the rail and couple intermediate portions of the pair of side plate portions (61, 62). The coupling member (521) is preferably passed through the swinging plates (53). The linear motion apparatus is compact and low-cost, and capable of maintaining a stable state of meshing between swinging plates and a toothed rail even if a compact casing is adopted.
Abstract:
The adjusting drive for axially adjustable steering columns in motor vehicles has a transmission between a drive unit mounted to rotate in a housing (2) secured to the body and a steering column tube (1) mounted to move axially in the housing. Gearing (5) is provided on the steering column tube extending in the axial direction. Gearing (8.1, 9.1) of the transmission engages with the steering column tube gearing. The gearing is provided as cycloidal gearing on two toothed racks (8, 9) whose gearing engages in the gearing on the steering column tube (1) out of phase with one another by half a tooth spacing, and which are movable eccentrically by the drive unit by a cam bearing (16, 17) out of phase by 180.degree..
Abstract:
A dual axis transfer mechanism comprising a pair of motors mounted onto a frame for independently rotating a pair of threaded shafts fixed in parallel relation. Each of the shafts is threaded into a carrier member connected to one end of a respective arm, the opposite end of each arm being connected at a common pivot point. Rotation of each shaft caused by its respective motor causes movement of the carrier member threaded thereon which effects movement of the common pivot point to which a tool is attached.
Abstract:
A rotation driving mechanism for windmill (1) includes an annular track part (2), a rotation driving part (11), and a plurality of swinging parts (15). The annular track part (2) is disposed on one of a base-side structure and a rotation-side structure, and has a track wall part (3) and first teeth (7). The rotation driving part (11) is fixed on the other of the base-side structure and the rotation-side structure. Each swinging part (15) has a swinging part body (16a) and second teeth (16b). When a rotating shaft (13) of the rotation driving part (11) is rotated so that the swinging parts (15) are swung with maintaining a predetermined phase difference thereamong, the swinging parts (15) are relatively moved with respect to the annular track part (2).
Abstract:
The invention concerns a safety device (1) for an actuator comprising a connection means (2) allowing a connection to a releasable holding means (5). The connection means (2) is fixed via a sacrificing means (3) to a supporting means (4), and a resilient means (7) is acting between the supporting means (4) and a supporting portion (8). An extension means (9) is fixed to the supporting means (4) via the connection means (2). The sacrificing means (3) has a mechanical strength such that the sacrificing means (3) breaks when subjected to a force exceeding a predetermined force, such that the extension means is no longer fixed to the supporting means and that a re-connection of the supporting means (4) and the releasable holding means (5) is made impossible. The predetermined force is lower than the mechanical strength of the extension means (9) and the supporting means (4). A linear actuator (13) comprising the safety device (1) is also provided.