Safety device for industrial machines
OwnerMaurizio Poserinventor
Life of this patent
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Abstract
A safety device, particularly for industrial machines, such as for example bending presses provided with an upper tool that is driven in abutment toward a lower die, at least one blank, such as a metal plate, a bent plate or a box-like element, being interposable between the die and the tool, the safety device comprising a glove worn by the operator, provided with first electrically conducting regions located at the back with no conducting regions at the palm; the glove constitutes, at contact with the machine and/or with the blank, an element for transmitting electrical signal between the machine and a control unit (CU) to stop descent of the tool.
Claims13
A safety device in combination with an industrial machine provided with a control unit and with at least a first and a second parts, said first part being movable in abutment toward the second part that is provided fixed, and with at least one blank being interposable between said first and second parts, the safety device comprising:
- at least one glove worn by an operator, said glove being provided with first electrically conducting regions and with second nonconducting regions, and constituting, in case of contact with the industrial machine and/or with the blank, a transmitting means for transmitting an electrical signal between the industrial machine and the control unit, in order to stop movement of said first movable part, the safety device further comprising a first electrical circuit, that is electrically separate of the operator and that is open and without current in an operating mode of said machine for movement of said first movable part, said first electrical circuit comprising;
- said first electrically conducting regions on said glove;
- said industrial machine;
- and said transmitting means such that said first electrical circuit is electrically closed when said first movable part makes contact with said first electrically conducting regions for halting the movement of said first movable part.
A safety device for an industrial machine that is provided with a control unit, with an upper tool driven into abutment toward a lower die, and with at least one blank that is interposable between said die and said tool, the device comprising at least one glove that is worn by an operator, is provided with first electrically conducting regions that are located at a back region of the glove and is free from conducting regions at a palm region thereof, said glove constituting, in case of contact with the industrial machine and/or with the blank, a transmitting means for transmitting an electrical signal between the industrial machine and the control unit in order to block movement of the tool, the safety device further comprising a first circuit electrically separate from the operator, between said at least one glove, said control unit and said industrial machine, said first circuit being closeable electrically upon contact of said first conducting regions with said tool.
A safety device for an industrial machine that is provided with a control unit, with an upper tool driven into abutment toward a lower die, and with at least one blank that is interposable between said die and said tool, the device comprising at least one glove that is worn by an operator, is provided with first electrically conducting regions that are located at a back region of the glove and is free from conducting regions at a palm region thereof, said glove constituting, in case of contact with the industrial machine and/or with the blank, a transmitting means for transmitting an electrical signal between the industrial machine and the control unit in order to block movement of the tool, the safety device further comprising a first circuit electrically separate from the operator, between said at least one glove, said control unit and said industrial machine, said first circuit being closeable electrically upon contact of said first conducting regions with said tool, said first conducting regions of said at least one glove comprising a strip of electrically conducting material that extends over at least a finger region of the back region of said glove.
Dependencies are inferred from the claim text.