Abstract: An access tunnel to an aircraft includes a plurality of tunnel elements each having a longitudinal axis, each tunnel element tapering conically in the direction of the longitudinal axis such that the tunnel elements can be pushed into each other.

Abstract: An access device to an aircraft, bus or building. The access device having a loading surface connected to a vehicle, wherein a protective device for passengers is arranged on the loading surface.

Abstract: An access tunnel system comprising at least one access tunnel for the sheltered guidance of persons to a vehicle, an aircraft, a building or the like. In accordance with the invention, a node element is provided at which the access tunnel opens and which at least one further access tunnel adjoins.

Abstract: An inertial drive is disclosed, comprising a length-changeable actuator element (I), a frame element (4) with a support section and with a deformation section, against the contact surfaces of which the actuator element bears, wherein the deformation section has an articulation section (13), a flat spring element (5) which is arranged on the deformation section and has a friction section (3) at the free end thereof, and a friction body (2), which can be driven, in mechanical contact with the friction section. A change in length (S) of the actuating element causes a rotatory movement (D) of the deformation section about the articulation section, which movement is transmitted via the spring element to the friction section for driving the friction body which can be driven.

Abstract: An access tunnel to an aircraft includes a plurality of tunnel elements each having a longitudinal axis, each tunnel element tapering conically in the direction of the longitudinal axis such that the tunnel elements can be pushed into each other.

Abstract: The invention relates to an assembly for an ultrasonic motor, comprising an actuator body, an actuator retainer that accommodates the actuator body, an actuator bearing, and a friction element driven by the actuator body, wherein there is planar frictional contact between the actuator body and the friction element and the assembly has an optimized tilt axis, about which the actuator retainer and/or the friction element can be pivoted and which is arranged at a distance from the center of gravity of the actuator body and is shifted in the direction of the section of the friction element touched by the actuator body.

Abstract: A piezoelectric rotary drive for a shaft, is disclosed which can include a piezoelectric actuator and a coupling portion for driving the shaft as a stick-slip drive. To transmit greater contact forces between the frame and the shaft, at least one piezoelectric actuator and an adjustable and/or deformable frame with at least one coupling portion can be coupled to the shaft in a force-locked manner so as to accomplish a stick-slip drive, wherein the frame translates a piezoelectric deformation of the actuator mechanically such that the coupling portion rotates about the axis of the shaft over at least a part of the circumference of the shaft.

Abstract: A bellows for a gangway between two hinge-linked vehicles, an aircraft boarding stairs or an aircraft boarding bridge, has several bellows frames in the longitudinal direction of the bellows. The bellows has an at least single-layered reinforcement, which is coated on at least one side with a plastic material. The reinforcement has guides for the bellows frames. The coated reinforcement is tensioned in the circumferential direction of the bellows at least between two bellows frames.

Abstract: A piezoelectric rotary drive for a shaft, is disclosed which can include a piezoelectric actuator and a coupling portion for driving the shaft as a stick-slip drive. To transmit greater contact forces between the frame and the shaft, at least one piezoelectric actuator and an adjustable and/or deformable frame with at least one coupling portion can be coupled to the shaft in a force-locked manner so as to accomplish a stick-slip drive, wherein the frame translates a piezoelectric deformation of the actuator mechanically such that the coupling portion rotates about the axis of the shaft over at least a part of the circumference of the shaft.

Abstract: The subject of this invention is a sheet of material for the manufacture of a folding wall of a transition between two articulated vehicle units, as well as the folding wall of a passenger boarding bridge or passenger stairs, wherein the sheet material has at least one reinforcement element, with the reinforcement element is coated on both sides with a plastic layer, wherein the at least one reinforcement element has on one side a coating based on a silicone rubber and on the other side a coating based on an organic rubber.

Abstract: The subject of the invention is a wall cover on the inner side of a bellows of a transfer between two pivotably interconnected vehicles, wherein the side wall cover is held by two holding devices, wherein each holding device is arranged at the body of a vehicle and wherein the holding device receives the side wall cover to be able to be rolled up when the length of the side wall cover shortens during travel around a curve.

Abstract: The invention relates to an ultrasonic actuator, preferably for use in an ultrasonic motor, in the form of a piezoelectric plate with a length L, height H and thickness t, wherein the piezoelectric plate has a lateral plane of symmetry Sq, a longitudinal plane of symmetry Sl and at least two main surfaces, and the piezoelectric plate comprises at least two generators symmetrically disposed with respect to plane of symmetry Sq for generating ultrasonic standing waves.

Abstract: The subject of this invention is a sheet of material for the manufacture of a folding wall of a transition between two articulated vehicle units, as well as the folding wall of a passenger boarding bridge or passenger stairs, wherein the sheet material has at least one reinforcement element, with the reinforcement element is coated on both sides with a plastic layer, wherein the at least one reinforcement element has on one side a coating based on a silicone rubber and on the other side a coating based on an organic rubber.

Abstract: The subject of the invention is a wall cover on the inner side of a bellows of a transfer between two pivotably interconnected vehicles, wherein the side wall cover is held by two holding devices, wherein each holding device is arranged at the body of a vehicle and wherein the holding device receives the side wall cover to be able to be rolled up when the length of the side wall cover shortens during travel around a curve.

Abstract: The invention relates to an ultrasonic actuator, preferably for use in an ultrasonic motor, in the form of a piezoelectric plate with a length L, height H and thickness t, wherein the piezoelectric plate has a lateral plane of symmetry Sq, a longitudinal plane of symmetry Sl and at least two main surfaces, and the piezoelectric plate comprises at least two generators symmetrically disposed with respect to plane of symmetry Sq for generating ultrasonic standing waves.

Abstract: The Object of the invention as a seal for aircraft boarding stairs or for an aircraft boarding bridge, said seal comprising a U-shaped bellows (5) spanning a gangway bottom plate (10), said bellows (5) comprising a flexible frame (3) at its one open end, said flexible frame having a bumper (4) made from an elastically resilient material, whereby the bellows (5) is separable.

Abstract: The invention relates to an armrest (1) for a motor vehicle seat (8) with seatback (R), which pivots downwards with its end designed as a disk (1a) about a bearing journal (3) in a housing (2) after the release of a locking device (4), into a release position, and by being raised again is capable of pivoting towards the seatback (R) into its locked position of use. The present invention creates an armrest (1) of this nature, which, with problem-free low-friction switching, and with simple structural means, guarantees a secure position of use, optionally with or without overload protection. To that end, the locking device (4) includes of a setting piston (7), capable of movement approximately radially to the bearing journal (3), and a locking slide (9) capable of displacement therein, in a transverse aperture (7a). The setting piston (7) features an engagement projection which interacts with an engagement recess (11).

Abstract: Bellows of a connecting corridor between two hinge-linked vehicles or vehicle parts, whereas the bellows is provided with several bellows elements connected together, whereas each bellows element is showing two opposite legs in the initial state of the bellows, whereas, for additional thermal insulation and silencing, each of the two opposite legs (4, 5) of a bellows element are provided on their inner side with at least one strap-joint (10, 20) provided with a coated tissue, whereas the two strap-joints (10, 20) are overlapping.