Grapple head arrangement

Details Grapple head arrangement Grapple head arrangement

1979-08-09

1981-04-07

Kunin, Stephen G.

Material or article handling

Vertically swinging load support

Grab

294 88, 294106, 414734, 414739, B66C 132

Patent

active

042603234

ABSTRACT:
PCT No. PCT/US79/00584 Sec. 371 Date Aug. 9, 1979 Sec. 102(e) Date Aug. 9, 1979 PCT Filed PCT Pub No. WO 81/00396 Pub Date Feb. 19, 1981
A compact grapple head (10) for use in apparatus such as a logging vehicle (11). The grapple head has a reduced overall height and utilizes four pivot connections (17,26,27 and 31) in controlling the tongs (13 and 18) thereof. The arrangement of the pivot connections relative to the tongs, an extensible device (22) and an interconnecting (28) provides an improved load-handling capability both as to maximum and minimum loads. Each of the extensible device (22) and link (28) is connected between the tongs with one of the pivotal connections (26) connecting both of the extensible device (22) and link (28) to one of the tongs (13) and a second pivotal connection (27) connecting both the extensible device and the other of the tongs (18) to the frame (12).

REFERENCES:
patent: 2604220 (1952-07-01), Frischmann
patent: 3048288 (1962-08-01), Dwyer
patent: 3237980 (1966-03-01), Helms
patent: 3310335 (1967-03-01), Shuey
patent: 3667796 (1972-06-01), Funk
patent: 3972431 (1976-08-01), Fischer
patent: 4005894 (1977-02-01), Tucek
patent: 4017114 (1977-04-01), LaBounty

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