Abstract:
Ein Antriebseinheit besitzt einen in beide Drehrichtungen laufenden Elektromotor, dem ein Schneckengetriebe mit einer axial begrenzt verschiebbar gelagerten Schneckenwelle und mit einem mit der Schnecke kämmenden Schneckenrad angeordnet ist. Die Selbsthemmung des Schneckengetriebes reicht manchmal nicht aus, um ein unerwünschtes selbsttätiges oder ein unbefugtes Verstellen eines Kraftfahrzeugteils zu verhindern. Deshalb hat man schon eine Bremsvorrichtung vorgesehen, die ein Bremselement aufweist, mit dem die Schneckenwelle durch eine axiale Verschiebung koppelbar ist. Um während einer Verstellung der Fensterscheibe durch den Elektromotor den Einfluß der Bremsvorrichtung auf die Schneckenwelle zu verringern, ist das Bremselement der drehbare Teil eines Drehrichtgesperres und stützt sich in axialer Richtung an einem Anschlag ab. Besondere Vorkehrungen, um eine Koppelung zwischen dem Bremselement und der Schneckenwelle zu verhindern, sind nun nicht mehr nötig.
Abstract:
An improved two-way torque limiting coupling (10) of the type utilizing a helical coil clutch (18) is provided. The coupling provides a driving connection between a first (12) and a second (14) rotatable adjacent members. The first member includes a bore (24) opening to an end (20) in which one end of coil clutch is received in interference fit to define an internal clutch interface (34) and the other member defines an annular outer periphery (26) about which the other end of the coil clutch is received in an interference fit to define an external clutch interface (36). For the direction of rotation tending to expand the coil clutch (18), the coupling will slip at the external interface (36) which is the low maximum torque transfer direction of rotation for that interface and for the direction of rotation tending to contract the coil clutch (18), the coupling will slip at the internal interface (34) which is the low maximum torque transfer direction of rotation for that interface.
Abstract:
본 발명은 케이스 내부에 지지부를 결합시, 길이방향으로 개방된 결합공을 통해 고정샤프트를 슬라이드 시켜 결합하므로 조립공정이 간편하여 작업능률이 향상될 뿐만 아니라 축을 중심으로 조절레버를 양방향으로 회전시키면서 조절기어를 제어하여 탄성력을 조절하므로 간편하게 조절할 수 있는 미닫이도어의 자동복귀장치에 관한 것이다.
Abstract:
A decoupler assembly is provided for allowing an alternator to be rotatably driven by a serpentine belt in an engine of an automotive vehicle and for allowing the speed of the belt to oscillate relative to the alternator. A hub is fixedly carried by a drive shaft from the alternator for rotation therewith. A pulley is rotatably journaled to the hub by a ball bearing assembly. A bare, helical clutch spring is operatively coupled between the hub and pulley for transferring rotational movement from the pulley to the hub during acceleration of the pulley relative to the hub by the serpentine belt and for allowing the hub to overrun the pulley during deceleration of the pulley relative to the hub. A torque limiter, preferably a spring or sleeve, is wrapped about the torsion limiting outward expansion of the torsion isolating the torsion spring from torques above a predetermined limit.
Abstract:
A decoupler assembly for transferring rotary movement between an engine driven shaft and a serpentine belt. The decoupler includes a hub configured to be assembled to the shaft. The hub has a helical first slot formed therein. A pulley is rotatably coupled to the hub. A carrier is mounted on the hub and includes a helical second slot formed therein, as well as an anti-ramp up boss formed thereon. A thrust plate is fixed to the hub and has a slot formed therein. A torsion spring is compressed between a hub end retained in the helical first slot and a carrier end retained in the helical second slot for transferring torque between the hub and carrier. The anti-ramp up boss travels within the slot formed in the thrust plate for limiting rotation between the carrier and thrust plate and preventing rotation of the torsion spring relative to the hub and carrier.
Abstract:
The invention relates to a bilateral drive for rotating in the one or the other direction of drive a drive wheel (1) which is linked with an adjusting device. Said drive comprises a drive lever (2) which can be rotated about a drive axis (10), starting from an initial position, in the one or the other direction. Said lever is linked with a coupling element for expanding a spring element (6) that is at least partially supported by the cylindrical drive surface of the drive wheel (1) and that entrains the drive wheel (1) in the peripheral direction when the drive lever (2) is moved away from the initial position, while the spring element (6) is no longer supported by the cylindrical drive surface of the drive wheel (1) and the drive wheel (1) is not entrained when the drive lever (2) is returned to the initial position. The coupling element comprises expansion cams (31, 32) that can be tilted about an axis spaced apart from the drive axis (10). The expansion cams expand the actuation lever (51, 52) which is linked with the spring element (6) in such a manner that the spring element (6) which is supported by the cylindrical drive surface of the drive wheel (1) is expanded.
Abstract:
A detachable opening and closing structure for stool seat and cover, wherein a resistance mechanism is not actuated when opening the seat and cover, but turns them quickly within a predetermined range of angles and then operates slowly for closing, and an erection mechanism applicable preferably to such mechanism is provided further thereto. Accordingly, when opening the seat and cover, these can be handled lightly as in the case of normal seat and cover, and closed within a short time despite being loaded with a resistance. Shocks from the opening and closing mechanism to the stool side are relieved, thus preventing members from damage, loose work and the like. Further, it is not necessary to provide the erection mechanism separately from the opening and closing mechanism, a structure can be compact, the mechanism is detachable easily to simplify the maintenance work, and sanitary use is ensured.
Abstract:
According to the invention, there is provided a door hinge comprising a spring (10) that plays the role of both a torsion spring and a compression spring, wherein its resilient force is used for axially pressing a movable cam (9) against a matching fixed cam (6) it comprises and thereby facilitating the opening and closing motion of the door with which it is used by giving said cams such specific configurations that the spring (10) accelerates the opening motion of the door from a given angular position of the door and locks the door at a particular open position and at a closed position. Since a door using such a hinge that comprises a spring (10) whose resilient force constantly biases the door to open can be either opened to any desired angle or closed and sustained there under a locked condition when the rotary shaft (8) of the hinge is firmly connected to the door, it can be used for a flap door or another vertically rotatable door such as a toilet lid to sustain the door to an open position under a locked condition even if the resilient force of the spring is nullified at that position and the door is liable to be pushed back by an obstacle such as a wire located behind the toilet assembly comprising the lid. Therefore, the door is protected against any turning effort and other forces which are unintentionally applied to the door.
Abstract:
A high-load linear actuator includes a driving mechanism, a worm shaft, a worm wheel assembly, a lead screw, a telescopic pipe and an outer pipe. The driving mechanism includes a base and a motor. The base has a supporting portion and an accommodating portion. The motor is fixed to the supporting portion. The worm shaft extends from the motor into the supporting portion. The worm wheel assembly includes a worm wheel and two bearings for supporting the worm wheel in the accommodating portion. The worm wheel is engaged with the worm shaft. The lead screw is disposed through the worm wheel and driven by the motor for rotation. The telescopic pipe slips on the lead screw to be threadedly connected therewith. The outer pipe slips on the telescopic pipe. The rotation of the lead screw drives the telescopic pipe to linearly extend or retract relative to the outer pipe.