The employer is a textile conditioning company with 250 employees.
Disability and functional limitation of the employee:
The man has a hearing impairment and is hard of hearing. His or her acoustic perception is limited due to the disability - in part, the limitations of hearing aids can be compensated. For safety reasons, however, visual warning signals must also be displayed acoustically. The GdB
(degree of disability) is 60.
The employee is a professional butcher. He works as a production assistant in the textile finishing company.
Workplace and work environment:
The employee is used on a machine for unraveling fabric. He works there with two colleagues in the field of finishing, where textiles are given the desired additional properties. The finish consists of large machinery, which is operated and monitored by the employees.
The machines cause a considerable noise (sound pressure level) in the halls. In spite of the noise, employees must be able to communicate with each other and to hear the warning and signal signals of the machines. The warning signals sound, z. B.
at the start of the gigs, the shearing machines, the packaging machine and the fixing machine. Each machine additionally has a system for signaling a fire (acoustic fire alarm device).
The employee uses special hearing aids approved for noise communication. The hearing aids filter or dampen the noise (noise) and at the same time allow a targeted amplification of useful sound or speech. Due to the size of the hall and the noise, an agreement on the hearing aids with colleagues is only possible in the immediate vicinity or in a meeting room. For the clear perception of the warning and message signals a paging system was used. Three sensors detect the warning and signal signals, which are then transmitted from the transmitting unit to a small receiver that can be worn on clothes or in the pockets. The transmitting unit was also integrated into the fire protection system via an interface. The employee is made aware of the situation with the aid of the strong vibration detector on the receiver. On the basis of the illuminated symbols, he can then recognize at the receiver what it is about. So it can be warning and reporting signals of the machines, the information about a fire, the note by phone to report - what is possible with the hearing aids or the call to come to master act. The responsible master sends with the help of the transmitting unit the information coming to the receiver.
Assistive devices used:
Behind-the-ear hearing aids
assistive products for alarming, indicating, reminding and signalling