INCIDENTAL SAFETY DEVICES AND METHODS

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INCIDENTAL SAFETY DEVICES AND METHODS
INCIDENTAL SAFETY DEVICES AND METHODS

INCIDENTAL SAFETY DEVICES

Some incidental safety device (indirect guards) equally useful as machine guarding are as below:-

safety device two hand control

Two hand control:- Two push buttons are required to be operated simultaneously thus keeping the operator’s hands engaged and away from the dangerous part. Such device does not protect another approaching person is prone to faults and cause difficulties on electrically, hydraulically or pneumatically powered machines. Therefore such device alone is not advisable. It is used on garment presses etc. Where two operators have to work simultaneously four push buttons are required to keep their hands away from dangerous parts.

optical sensor safety device

Optical Sensor:-   This uses photo-electric cell and a light on interruption of the light beam, the dangerous part is stopped. Its working must be checked before starting the work.

electromagnetic sensor safety devise

Electromagnetic Sensor:- This uses a sensor of the electromagnetic field, a coupler, and interconnecting cable and a control unit. Interruption of the field by an operators hand causes an electric signal which initiates the desired control action.

mechanical feed

Mechanical Feed:- A positioning device like conveyor or a rotating table moves the parts or material into the point of operation where the hazard exists thus avoiding human contact there.

Feed Tools:- Tools tong, magnetic, lifting rod etc. are used to place material in a press with an intention to save the hand.

pedal guard

Pedal Guard:- Such guard on foot-pedal of a power press prevents accident foot-stroke on the pedal.

ultrasonic device

Ultrasonic device:- Inaudible high-frequency sound senses the presence of any part in the danger zone. As sound attenuates over distance its application is limited.

Feed hooper: It extends the feed length to prevent access. It can be used on pug mill, rubber mill etc.

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