| 摘要 |
The invention relates to a safety device for pneumatic actuators, for preventing the actuator pinion from being violently ejected, comprising a circular seat, formed on the less diameter portion of the pinion, projecting from the actuator body, and housing a resilient ring element. The resilient ring element engages with the pinion restraining elements, provided on the less diameter portion of the pinion outside of the actuator body, for a time required fox allowing the pressure inside the actuator body to be released, through a slot defined about the pinion larger diameter section because of the disengagement of the corresponding sealing gasket from the actuator body.
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