The reaction force output device includes a drive source configured to output power to an operation portion in a direction opposite to an operating direction thereof; and a clutch mechanism interposed between the operation portion and the drive source and configured to connect and disconnect transmission of the power to the operation portion, wherein the clutch mechanism includes a first rotating body connected to the drive source side and to which the power of the drive source is transmitted, a second rotating body connected to the operation portion side, disposed coaxially with the first rotating body and configured to be relatively rotatable with respect to the first rotating body, a clutch lever rotatably supported by the first rotating body, and a plurality of engagement portions disposed at the second rotating body in a circumferential direction thereof and engaged with the clutch lever.

This power transmission device includes a motor, a worm connected to a rotating shaft of the motor, and a worm wheel engaged with the worm and disposed at an operation pedal side with respect to the worm, wherein a biasing member which biases the motor in a direction in which the worm and the worm wheel come in contact with each other when the motor is driven is disposed between the motor and a housing.

This power transmission device includes a motor, a worm connected to a rotating shaft of the motor, and a worm wheel engaged with the worm and disposed at an operation pedal side with respect to the worm, wherein a biasing member which biases the motor in a direction in which the worm and the worm wheel come in contact with each other when the motor is driven is disposed between the motor and a housing.

A pedal assembly actuates a rigid actuator of a functional system in a motor vehicle. The assembly comprises a mounting bracket having spaced apart support members defining a pedal receiving space. A pedal arm has a pedal pad and an actuator connector. A pair of retainer brackets are normally in a retaining position secured against front-rear movement. At least one pivot pin pivotally connects the proximal end of the pedal arm to the retainer brackets. A pyrotechnic actuator has an input for receiving an actuating signal and when triggered enables deformation of the retainer bracket to a releasing position wherein the retainer brackets permit the at least one pivot pin and the proximal end of the pedal arm to move rearwardly with respect to the mounting bracket. The pyrotechnic actuator may also be arranged with respect to a releasable connector to drive it for disconnection from the retainer brackets to permit the retainer brackets, the at least one pivot pin and the proximal end of the pedal arm to move rearwardly.

A pedal assembly actuates a rigid actuator of a functional system in a motor vehicle. The assembly comprises a mounting bracket having spaced apart support members defining a pedal receiving space. A pedal arm has a pedal pad and an actuator connector. A pair of retainer brackets are normally in a retaining position secured against front-rear movement. At least one pivot pin pivotally connects the proximal end of the pedal arm to the retainer brackets. A pyrotechnic actuator has an input for receiving an actuating signal and when triggered enables deformation of the retainer bracket to a releasing position wherein the retainer brackets permit the at least one pivot pin and the proximal end of the pedal arm to move rearwardly with respect to the mounting bracket. The pyrotechnic actuator may also be arranged with respect to a releasable connector to drive it for disconnection from the retainer brackets to permit the retainer brackets, the at least one pivot pin and the proximal end of the pedal arm to move rearwardly.

An accelerator device includes at least one drive source, a pedal lever, and a power transmission mechanism. The pedal lever is configured to move according to a pedal depressing operation. The power transmission mechanism is configured to transmit force both in the pedal lever's closing direction and opening direction to the pedal lever by driving of the drive source.

An accelerator device includes at least one drive source, a pedal lever, and a power transmission mechanism. The pedal lever is configured to move according to a pedal depressing operation. The power transmission mechanism is configured to transmit force both in the pedal lever's closing direction and opening direction to the pedal lever by driving of the drive source.

An accelerator device includes a pedal lever, at least one drive source, a power transmission mechanism, and a locking mechanism. The pedal lever operates in response to a depressing operation. The drive source is configured to exert a reaction force as a force in a returning direction to the pedal lever. The power transmission mechanism transmits a drive force from the drive source to the pedal lever. The locking mechanism is capable of regulating the operation of the pedal lever.

An accelerator device includes a pedal lever, at least one drive source, a power transmission mechanism, and a locking mechanism. The pedal lever operates in response to a depressing operation. The drive source is configured to exert a reaction force as a force in a returning direction to the pedal lever. The power transmission mechanism transmits a drive force from the drive source to the pedal lever. The locking mechanism is capable of regulating the operation of the pedal lever.

An accelerator device includes an inner housing, a pedal lever, an urging member, and an actuator. The inner housing is supported to the outer housing by a support member. The pedal lever is rotatably supported to the inner housing in response to a stepping operation. The urging member urges the pedal lever in a closing direction. The actuator can drive the inner housing in an opening and closing directions of the pedal lever.