30results about How to "Simple replaceability" patented technology

A sprocket assembly that includes at least three sprockets and a sprocket carrier having a plurality of radially extending carrier arms. The carrier arms include a first receiving surface and a second receiving surface opposite the first receiving surface. A first sprocket mounted to the first receiving surface and a second sprocket mounted to the second receiving surface. A third sprocket arranged between the first and second sprockets.

The invention relates to a drilling tool with a base (32), having a central axis of rotation (24), and a drill bit (34), detachably connected to the base (32). The drill bit (34) has a coupling part (96), which can be coupled with a coupling receptacle (94) on the face of the base (32) and has at least two convexly curved centring portions (40), which are arranged such that they are distributed over the circumference and engage with an exact fit in complementary concavely curved centring portions (42) of the coupling receptacle (94). The coupling part (96) has a complementary driver stop (46), meshing with a rotary driver (44) of the coupling receptacle (94). It is claimed as novel that the centering portions (40, 42) of the coupling part (96) and/or of the coupling receptacle (94) have clamping surfaces (48, 50), which run onto each other in the manner of a rotary wedge until the driver stop (46) and the rotary driver (44) come up against each other counter to a predetermined direction of rotation.

The invention relates to a device for the low-deformation replaceable mounting of an optical element, in particular a closure plate of an objective of a projection exposure system for microlithography for the production of semiconductor components, in a mount (12). The optical element is connected to the mount (12) at least partly via an adhesive connection. This is located between the adjacent circumferential walls of mount (12) and optical element. The mount (12) is provided with at least three support feet (14) distributed over the circumference, by means of which the optical element is mounted laterally and axially. The mount (12) is connected to the housing of the objective in an at least approximately deformation-decoupled manner via three mount bearing points (15).

The invention relates to a monitoring device (12) for a disk brake (1), said monitoring device at least comprising: a sensor unit (14) for attachment to a brake caliper (2) of a disk brake (1) and a measuring element (13), wherein the sensor unit (14) is configured to detect a relative position of the measuring element (13), said measuring element being movable relative to the sensor unit (14), wherein the sensor unit (14) and the measuring element (13) are spaced apart from one another for forming a contact-less monitoring device (12). According to the invention, a biasing element (17) is arranged between the measuring element (13) and the sensor unit (14) for biasing the measuring element (13) against a pressure spindle (7) of the disk brake (1).

The invention relates to an anti-twist device for guiding a thread, comprising an anti-twist roller (1) and a shaft (2) having a retaining end (2.1) with a rotationally fixed connection to the anti-twist roller and a bearing end (2.2) for bearing the shaft. The anti-twist roller is preferably configured by two ceramic disks (3.1, 3.2) with axially overlapping webs (4) for producing a zigzag threadline track (19). The aim of the invention is to provide an anti-twist roller with a long-lasting bearing while guaranteeing replaceability of the expendable parts. For this purpose, the bearing end of the shaft is rotationally received in a bearing bush (5) and said bearing bush (5) is detachably connected to a roller carrier (7) as a modular unit comprising the mounted shaft and the anti-twist roller.

A trocar holder for a manipulator of a robotic surgical system. The trocar holder comprises a base element for securing the trocar holder to the manipulator and a clamp element which is replaceably connected to the base element via a coupling mechanism. Two limbs movable relative to each other in a clamp plane are formed on the clamp element. The limbs are connected via a spine and have free tips. The trocar holder also has a clamp mechanism for opening and closing the limbs and a receiving element for a trocar.

The invention concerns an adjusting unit for automotive applications, in particular motor vehicle door closures or locking systems (1). The adjusting unit is provided with a housing (3); a drive (2) disposed in the housing (3), in particular a worm gear,; an actuator which can be acted upon by the drive; and at least one sliding bearing (11) for accommodating a bearing point (10) of the drive (2), in particular a worm (6) of the worm gear. According to the adjusting unit, the adjusting unit comprises at least one sliding bearing (11) which is provided in sections with an elastomer covering (12).

The invention relates to an open-end spinning rotor (1 a, 1 b, 1 c) comprising a rotor shaft (4a, 4b, 4c), a rotor cup (2, 2c) and a coupling device (3a, 3b, 3c). The rotor shaft (4a, 4b, 4c) and the rotor cup (2, 2c) are releasbly connected together by means of the coupling device (3a, 3b, 3c). The coupling device (3a, 3b, 3c) is provided with a locking means (5, 6) for the axial arresting of the rotor cup (2, 2c), a transmission means (9, 10, 11, 12) for positively transmitting a torque from the rotor shaft (4a, 4b, 4c) to the rotor cup (2, 2c), and a centering means used for aligning the rotor shaft (4a, 4b, 4c) with the rotor cup (2, 2c). The centering means comprises a cylindrical bore part (8, 8C) and a corresponding guide extension part (7, 7c) to be guided into the cylindrical bore part (8, 8C). According to the invention, the cylindrical bore part (8, 8C) and the guide extension part (7, 7c) are in clearance fit with each other. The centerin means comprises elastic arrangements (13, 14, 15B, 15c) arranged between the cylindrical bore part (8, 8C) and the guide extension part (7, 7c).

In a device for draw string actuation in a shoe (1) provided with a draw string device, having a winding disc (16) which is arranged in a rotatable manner in a carrier let into the shoe sole (2) and is stationary in an axial direction and on which at least one draw string element (8) that is able to be wound up thereon acts, and having an actuating element (10) which is movable in the axial direction with respect to the winding disc (16), is able to be pressed down by the carrier of the shoe (1) and in the process is blocked in the direction of rotation, said actuating element (10) being in screw engagement with the winding disc (16), which is rotatable in a tensioning direction by the actuating member (10) that is able to be pressed down, and which is able to be blocked in the tensioned position by means of a blocking device which is releasable by means of an externally actuable release member (11), and having a restoring spring arrangement (33) that counteracts the force exerted by the carrier of the shoe (1), a simple, clear structure and high functional safety and reliability can be achieved in that the carrier let into the shoe sole (2) is configured as a closed housing with abase (20) on which the winding disc (16) is mounted, and with a cover (15) through which an upper push button of the actuating member (10) passes, in that a fixed peg (21) that is assigned to a central passage cutout (18) in the winding disc (6) and has a non-round cross section protrudes from the base (20) of the housing, the actuating member (10) having a corresponding cutout (22) being able tobe plugged onto said peg (21) with freedom of movement in the axial direction, and in that the restoring spring arrangement (33) acts on the winding disc (16) and/or the actuating member (10) and, with the blocking device released, restores the winding disc (16) and the actuating member (10) into their respective starting positions.

The invention proposes a bearing arrangement having a first bearing ring and a second bearing ring, which is mounted for rotation in relation to the first bearing ring, wherein a plurality of hydrostatically supported sliding-bearing segments are arranged on the first bearing ring, wherein each sliding-bearing segment interacts with a first sliding surface arranged on the second bearing ring, wherein each sliding-bearing segment has a first sub-element and a second sub-element, wherein the first sub-element is accommodated in an accommodating pocket of the first bearing ring such that a firstpressure space is formed between the first bearing ring and the first sub-element, wherein the first sub-element and the second sub-element are designed such that a second pressure space is formed between the first sub-element and the second sub-element, wherein the second sub-element and the second bearing ring are designed such that a third pressure space is formed between the second sub-elementand the second bearing ring, wherein a first surface of the first sub-element interacts with a second surface of the second sub-element, wherein the first surface is curved convexly or concavely andthe second surface is formed in a manner which complements the first surface.