Lock-up mechanism for a planter row unit

Details Lock-up mechanism for a planter row unit Lock-up mechanism for a planter row unit

1982-03-15

1984-01-17

Hafer, Robert A.

Planting

Drilling

Lister units

111 69, 111 68, 111 67, 111 52, 111 66, A01C 500

Patent

active

044258577

ABSTRACT:
A row unit with a mechanism which provides normal planting via a parallel bar linkage connection to the planter and which can be locked up in a raised, non-planting position when desired. The mechanism includes curved slotted openings in the lower bars of the linkage for frame mounted spacers as the frame pivots about the connection with the upper bars, and locking structure having detents to engage the spacers in the lowered working and raised non-working positions. The mechanism also prevents the release of the locking structure until the row unit weight is lifted therefrom.

REFERENCES:
patent: 3124201 (1964-03-01), Downing et al.
patent: 4241674 (1980-12-01), Mellinger
patent: 4248310 (1981-02-01), McWilliams
White Farm Equipment Co.-The 51005 Soybean Special Seed Boss; date 1/18/82.
White Farm Equipment Co. 5100/51005/5100/5700 Seed Boss Planters; date Jun. 12, 1983.

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