Archery device with constrained four-bar linkage

Details Archery device with constrained four-bar linkage Archery device with constrained four-bar linkage

1989-03-09

1990-09-11

Reese, Randolph A.

Mechanical guns and projectors

Spring

Bow

124 25, F41B 500

Patent

active

049553542

ABSTRACT:
An archery device in which flexible limbs are supported on a limb holder by means of pairs of pivoted swing arms, the limbs, holder member and swing arm pairs each forming a four bar linkage system allowing the limbs to swing rearwards upon drawing of a connected drawstring. Load cables are connected to each limb tip which constrain the limb movement to cause flexing of the limbs during the draw. The load cables move towards alignment with the swing arms to reduce draw effort at full draw.

REFERENCES:
patent: 3967609 (1976-07-01), Frydenlund
patent: 3981290 (1976-09-01), Islas
patent: 4287867 (1981-09-01), Islas
patent: 4603676 (1986-08-01), Luoma
patent: 4649891 (1987-03-01), Bozek
patent: 4697571 (1987-10-01), Waiser
patent: 4711228 (1987-12-01), Gillespie

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