Machine with automatic finger safety guard

Details Machine with automatic finger safety guard Machine with automatic finger safety guard

1985-09-27

1986-12-23

Goldberg, L. A.

Electric heating

Metal heating

For bonding with pressure

219 8641, 219 89, 219 911, 100 53, 192134, B23K 1100

Patent

active

046313834

ABSTRACT:
An improved machine with automatic finger safety guard includes a machine body having a finger-accessible work space and at least one movable machine component disposed in the work space. An electric motor is connected by leads to a power source and is also connected to the movable component for powering the component. An automatic finger safety guard is installed on the machine and preferably includes a hollow tube disposed around the work space and movable between an operative protective position and an inoperative retracted position. Switches are connected to the enclosure and to the electric motor leads for automatically interrupting the powering of said movable component upon movement of the enclosure from the fully protective position to the retracted position. The machine preferably includes a resistance welding machine having a pair of welding electrodes which approach each other in the work space, at least one of which electrodes is movable into and out of the work space.

REFERENCES:
patent: 4041272 (1977-08-01), Burton et al.
patent: 4060160 (1977-11-01), Lieber

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