A self-braking gear (2) comprises: an input shaft (4), an output shaft (6), a braking mechanism (8), which is configured for braking the output shaft (6), and a planetary gear (10). The planetary gear (10), which is connected between the input shaft (4) and the output shaft (6), is configured to activate the braking mechanism (8) in order to brake the output shaft (6), when no torque is provided via the input shaft (4). The self-braking gear (2) may be employed in a people conveyor (50) such as an escalator.

A magnetic stopper, for a rotary motion system that includes a base unit and a rotary unit rotatably mounted on the base unit, includes a static part configured to be mounted on the base unit and a rotary arm configured to be mounted on the rotary unit. The static part includes a rotary arm stopping portion configured to receive a distal end portion of the rotary arm, and a movable arrangement including a magnet holder and a mobile magnet mounted on the magnet holder and movable within the rotary arm stopping portion. The rotary arm includes a rotary arm magnet configured to magnetically interact with the mobile magnet when the static part and the rotary part are mounted respectively on the base and rotary units, to prevent excessive movement of the rotary unit when the rotary motion system is operating.

A switchable locking device has a switchable lock and an output shaft configured to receive the switchable lock and to be selectively connected to and disconnected from a rotational shaft via the switchable lock. When received by the output shaft, the switchable lock is configured to be selectively switched between an ON state and an OFF state. In the ON state of the switchable lock, the output shaft is connected to the rotational shaft for undergoing rotation therewith. In the OFF state of the switchable lock, the output shaft is disconnected from the rotational shaft and does not undergo rotation therewith.

A gear assembly configured to be driven by a motor and/or manual operation is disclosed. The gear assembly is configured to reduce or eliminate the effect of inertia of the motor on an output of the gear assembly and/or to dissociate a linear motion of the output relative to a rest position from an opposite rotational motion of an input of the gear assembly. The gear assembly may comprise a wheel configured to rotate about a wheel axis, and a drum and a locker both configured to move in response to rotation of the wheel. When both locker and drum are prevented from moving, the wheel continues to move. The gear assembly may comprise a gcar and a driver, both configured to rotate about a gear axis, and a spring disposed therebetween. When the linear motion causes the gear to move, the motion is not transferred to the driver.

A stop mechanism for a drive system includes a one-way clutch, a brake, a stop feature, and a linkage. The one-way clutch couples with a drive shaft of the system when the drive shaft is rotating in a first direction but not in an opposite direction. The brake is connected to the drive shaft through the first one-way clutch and is operable to stop drive shaft rotation in the first direction. The stop feature is carried by an output element driven by the drive shaft and actuates the linkage to operate the first brake when the output element reaches a predetermined limit position when moving in a direction corresponding to the first drive direction of the drive shaft. A bidirectional stop mechanism is provided by adding a second one-way clutch, a second brake, and a second stop feature arranged to act in the opposite rotational direction of the drive shaft.

According to an aspect of the present invention, there is provided a mechanical drive for a decoy.

A stop mechanism for a drive system includes a one-way clutch, a brake, a stop feature, and a linkage. The one-way clutch couples with a drive shaft of the system when the drive shaft is rotating in a first direction but not in an opposite direction. The brake is connected to the drive shaft through the first one-way clutch and is operable to stop drive shaft rotation in the first direction. The stop feature is carried by an output element driven by the drive shaft and actuates the linkage to operate the first brake when the output element reaches a predetermined limit position when moving in a direction corresponding to the first drive direction of the drive shaft. A bidirectional stop mechanism is provided by adding a second one-way clutch, a second brake, and a second stop feature arranged to act in the opposite rotational direction of the drive shaft.

A damper apparatus possible to suppress abnormal sounds immediately after the locking of gears has been released is provided. In a first lock mechanism of the damper apparatus, a first arcuate outer-peripheral part peripherally adjacent to a teeth-missing gear in a drive gear enters a portion of a plurality of teeth in which some teeth are narrowed in the axial direction to restrain a sector gear, the teeth being meshed with the drive gear in the sector gear. In the tooth nearest to the first arcuate outer-peripheral part in the teeth-missing gear, the curvature of a first tooth flank on the side opposite the first arcuate outer-peripheral part is less than the curvature of a second tooth flank on the first arcuate outer peripheral part side, and the tooth has a curved surface continuous from the first tooth flank to the second tooth flank.

A self-locking mechanism for a gearing arrangement, a gearing arrangement, an actuator, and a lifting platform, which relate to the technical field of lifting tables. The self-locking mechanism includes a casing, a self-locking gear, and a brake member, the self-locking gear meshing with the gearing arrangement, the brake member being connected between the casing and the self-locking gear; in a case where the gearing arrangement pushes the self-locking gear forwardly, the brake member releases the self-locking gear, and in a case where the gearing arrangement pushes the self-locking gear reversely, the brake member brakes the self-locking gear.

An assembly includes a thermoelectric tripping device, a flange, and a gland. The thermoelectric tripping device is configured to be detachably coupled with a damper. The thermoelectric tripping device includes an extending arm including a fuse configured to trip at a pre-defined temperature. The flange is configured to be coupled to a surface of the damper. The gland is defined by a pair of fixtures positioned in-line with each other and having a passage configured therewithin to facilitate passage of the extending arm therethrough. A first fixture of the pair of fixtures is configured to be coupled with the flange, and a second fixture of the pair of fixtures is configured to be detachably coupled with the extending arm.