Protective working device for miners
First Claim
1. A protective working device for miners, comprising a lamp which can preferably be attached or fastened to a protective helmet, and which is connected via a cable to a supply battery which can be fastened to an item of clothing such as a belt and is supplied with electrical energy from the supply battery, and a transponder device fed from the same battery which interoperates with underground personnel detection systems such as detection sensors which monitor the working and operating areas of support frames for underground faces or of underground mining machines, in which it further comprises a safety circuit device which automatically switches off the supply to the lamp if the remaining charge of the supply battery falls below a preset value.
2 Assignments
0 Petitions
Accused Products
Abstract
The present invention relates to a protective working device (1) for miners, comprising a lamp (3) , which can for instance be attached to a protective helmet (2), and which is connected via a cable (4) to a supply battery (11) which can be fastened to an item of clothing such as a belt (6) and is supplied with electrical energy from the supply battery (11). A transponder device (13) is supplied with energy from the same battery (11) which interoperates with underground personnel detection systems such as detection sensors which monitor the working and operating areas of support frames for underground faces or of underground mining machines. In order to ensure the energy supply for the transponder device (13) over a significantly longer period than before and to provide the safety functions of the personnel detection system even under mining accidents, a safety circuit device (12) is provided, which switches off the energy supply to the lamp (3) if the remaining charge in the supply battery (11) falls below a predetermined remaining charge.
36 Citations
7 Claims
- 1. A protective working device for miners, comprising a lamp which can preferably be attached or fastened to a protective helmet, and which is connected via a cable to a supply battery which can be fastened to an item of clothing such as a belt and is supplied with electrical energy from the supply battery, and a transponder device fed from the same battery which interoperates with underground personnel detection systems such as detection sensors which monitor the working and operating areas of support frames for underground faces or of underground mining machines, in which it further comprises a safety circuit device which automatically switches off the supply to the lamp if the remaining charge of the supply battery falls below a preset value.
Specification