Bundle limbing device

Details Bundle limbing device Bundle limbing device

1984-08-14

1986-03-11

Bray, W. D.

Woodworking

Special-work machine

144343, B27L 100

Patent

active

045748543

ABSTRACT:
A bundle limbing device, primarily for mobile use, is divided into two mirror-symmetrical halves, each with one front and one rear swinging arm (4a,4b) at their lower parts mounted on a low level of a forwarder and interconnected by means of longitudinal bars (14a,14b). At the ends of the swinging arms of each device half, front and rear bearing beams (6a,6b) are rigidly secured, which serve as bearings for a series of parallel limbing rolls (8). Support shoulders (13a,13b) at the top of the swinging arms form side supports for a bundle of trunk portions (12) which are deposited on the bed formed as the two device halves are brought together, when the opposite bearing beams (6a,6b) on the associated swinging arms meet and form an obtuse angle. Each limbing roll consists of a center tube (9) which supports a series of circular annular flanges (10) with alternating inclination to the tube shaft defining an elliptic rotational surface. All the rolls in each device half are first driven by a transmission in a direction in which the trunk portions lying above are carried along outwards towards the support shoulders while they are limbed and stirred which is promoted by the elliptic vibration. Branches then detached will pass out through openings between the outer rolls and the support shoulders. After finished limbing the two device halves are separated while reversing the direction of rotation of the rolls so that the limbed trunk portions are passed down into an underlying load space (7).

REFERENCES:
patent: 3385331 (1968-05-01), Bronamo et al.
patent: 3690352 (1972-09-01), Herolf

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