A portable lamp comprises a central body, a boom arm, flat tripod stand, and a light unit. The central body is extendable along its vertical axis to a predetermined length. The boom arm is of adjustable length and is rotatably fixed to the upper end of the central body with a positively locking elbow joint, including a ratchet and pawl. The lower end of the central body is fixed with a foldable locking flat tripod stand adapted to hold and provide mobility to the portable lamp. Flat tripod stand includes a spring-biased latch and detents that hold legs in a folded or a down position. The central body, the boom arm, the tripod stand and the light unit are configured to provide up to twelve degrees of freedom jointly.

A torque transfer control mechanism that suppresses output-side displacement, and including a rotation control unit that maintains a locked state when an input torque rotating a transfer mechanism is not applied, and releases the locked state when the transfer mechanism rotates. The rotation control unit includes an internal gear and lock plates that include outer teeth that can engage with inner teeth of the internal gear. When an input torque is not applied, the inner teeth of the internal gear engage with the outer teeth of the lock plates, and when the transfer mechanism is rotated, engagement between the inner teeth and the outer teeth is released. Thus, even when torque is applied from the output unit side, engagement between the inner teeth and the outer teeth is not released by the torque.

A torque transfer control mechanism that suppresses output-side displacement, and including a rotation control unit that maintains a locked state when an input torque rotating a transfer mechanism is not applied, and releases the locked state when the transfer mechanism rotates. The rotation control unit includes an internal gear and lock plates that include outer teeth that can engage with inner teeth of the internal gear. When an input torque is not applied, the inner teeth of the internal gear engage with the outer teeth of the lock plates, and when the transfer mechanism is rotated, engagement between the inner teeth and the outer teeth is released. Thus, even when torque is applied from the output unit side, engagement between the inner teeth and the outer teeth is not released by the torque.

A portable lamp comprises a central body, a boom arm, flat tripod stand, and a light unit. The central body is extendable along its vertical axis to a predetermined length. The boom arm is of adjustable length and is rotatably fixed to the upper end of the central body with a positively locking elbow joint, including a ratchet and pawl. The lower end of the central body is fixed with a foldable locking flat tripod stand adapted to hold and provide mobility to the portable lamp. Flat tripod stand includes a spring-biased latch and detents that hold legs in a folded or a down position. The central body, the boom arm, the tripod stand and the light unit are configured to provide up to twelve degrees of freedom jointly.

A solution to reduce the ratcheting sound that occurs at the start of braking when an operation pedal is operated by foot. Because a mounting seat as a flat part and base plate are provided between a ratchet member and support axial center S of an operation pedal, there is a possibility that the ratchet member's vibration will propagate to the adjacent mounting seat and base plate, amplifying the ratchet sound. However, the adjacent mounting seat and base plate are provided with beads, having cross-sections that bend convexly in a direction substantially orthogonal to the vibration waveform of the ratchet sound produced by a pole coming into contact with serrations when the mounting seat and base plate maintain a flat plate shape; i.e., in a circumferential direction about support axial center S. Therefore, rigidity against the vibration is increased, propagation of vibration is minimized, and ratchet sound is effectively reduced.

A solution to reduce the ratcheting sound that occurs at the start of braking when an operation pedal is operated by foot. Because a mounting seat as a flat part and base plate are provided between a ratchet member and support axial center S of an operation pedal, there is a possibility that the ratchet member's vibration will propagate to the adjacent mounting seat and base plate, amplifying the ratchet sound. However, the adjacent mounting seat and base plate are provided with beads, having cross-sections that bend convexly in a direction substantially orthogonal to the vibration waveform of the ratchet sound produced by a pole coming into contact with serrations when the mounting seat and base plate maintain a flat plate shape; i.e., in a circumferential direction about support axial center S. Therefore, rigidity against the vibration is increased, propagation of vibration is minimized, and ratchet sound is effectively reduced.

A parking brake control assembly having a brake actuator includes an engagement member, a retention member, a release actuator, and a biasing member. In a first position of brake actuator, the retention member is arranged to engage the engagement member upon movement of the brake actuator from a first position to a second position to hold the brake actuator in the second position. Movement of the brake actuator from the first to the second position causes the release actuator to move relative to the retention member such that the biasing member provides a force on the retention member tending to disengage the retention member from the engagement member so that upon movement of the brake actuator to return the brake actuator from the second position to the first position, the retention member disengages from the engagement member enabling the brake actuator to be returned to the first position.

In order to provide a fail-safe operating mode during a transition between an autonomous steering mode and a driver-controlled steering mode in an emergency situation, a steering system comprises a steering shaft, a brake mechanism movable between an released position and a engaged position for angularly locking the steering shaft, and an override such that a non-destructive external torque applied to the steering shaft above a given threshold when the brake mechanism is in the engaged position results in a rotation of the steering shaft.

In order to provide a fail-safe operating mode during a transition between an autonomous steering mode and a driver-controlled steering mode in an emergency situation, a steering system comprises a steering shaft, a brake mechanism movable between an released position and a engaged position for angularly locking the steering shaft, and an override such that a non-destructive external torque applied to the steering shaft above a given threshold when the brake mechanism is in the engaged position results in a rotation of the steering shaft.

A bicycle operating apparatus is provided with a base member, a ratchet, a pawl member and an operating member. The ratchet is rotatably disposed around a ratchet axis, and biased in a first direction about the ratchet axis. The operating member moves the pawl member from a first position to a second position. The pawl member has a pawl portion and first and second support portions. The pawl portion engages with the ratchet teeth while the pawl member is in the second position to regulate rotation of the ratchet in the first direction. The first support portion pivotally supports the pawl member around a first axis as the pawl member moves from the first position to the second position. The second support portion pivotally supports the pawl member around a second axis while the pawl member is in the second position.