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US 4,399,988 AGranted
Apparatus
AssigneeE. I. Du Pont de Nemours and Company
InventorGeorge T. De Shong
Life of this patent
Estimating the term…
Abstract
A printed circuit board assembly fixture capable of securing the circuit board in a fixed relation to the inserting element of an electrical component inserting machine relies on the staking anvil of the assembly to precisely locate the circuit board and electromagnets to lock the circuit board in position for insertion of electrical components.
Claims3
Apparatus for locating a printed circuit board having a hole for receiving an electrical component in relation to an inserting element of an electrical component inserting machine comprising:
- a fixed anvil assembly located beneath the inserting machine, said anvil assembly including a rigid support having an upper surface, and an anvil movable past the upper surface of the support from an at rest position to a staking position in alignment with the inserting element;
- a circuit board holder that includes a ferromagnetic plate having upper and lower surfaces connected by a hole, means for attaching said circuit board in a fixed position on the upper surface of said plate with the component receiving hole in alignment with the hole in the plate;
- resilient means for supporting said plate positioned between the upper surface of the rigid support and the lower surface of the plate;
- and a plurality of energizable electromagnets attached to and extending above the upper surface of the support to hold said plate in a fixed position beneath said inserting element when energized, whereby the holes in said plate and said printed circuit board may be aligned with said anvil and then said plate may be depressed to engage said electromagnets.
1 more element
Dependencies are inferred from the claim text.