Excavating – Scoop or excavating and transporting container – Scoop or bucket structure – per se
Patent
1997-10-09
1999-09-07
Will, Thomas B.
Excavating
Scoop or excavating and transporting container
Scoop or bucket structure, per se
37447, 37904, E02F 336, E02F 340
Patent
active
059468327
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a vibration bucket arrangement comprising a bucket part that comprises a bottom, a rear part and lateral end parts, the arrangement further comprising an attachment part with which the bucket part can be attached to a construction machine, a vibration unit attached to the bucket part, which unit comprises a vibrating device to be used by a regulating element, the arrangement further comprising a flexible attachment on which the bucket part is arranged, and that the vibration bucket arrangement comprises locking and releasing means for locking the flexible attachment of the bucket part essentially rigid when moving from vibration use to bucket use and for releasing the locking when moving from bucket use to vibration use.
A vibration bucket can usually be used as an ordinary bucket for example for earth-moving, but also for vibrating earth. The vibration movement is effected by a vibration unit connected to the bucket, which unit comprises a wabbler shaft that is rotated.
One area of use for vibration buckets is the construction of foundation pits, yard areas and passages. A vibration bucket is also needed for building bridges and culverts and for paving a street, for constructing traffic islands and for building water and heating networks.
More generally, a vibration bucket can be used for projects which first require digging and moving the earth to be moved elsewhere or loading onto a truck, and which projects secondly require spreading, levelling and compacting the earth transported in its place.
Vibration buckets are already previously known. Prior art vibration buckets are used in earth-moving work and they comprise a vibrator whose task it is to improve the penetration of the bucket into the earth and help clear the earth off the bucket. FI-1153/68 discloses a simple vibration bucket in which a vibration unit outside the bucket comprises one wabbler shaft that produces an equal centrifugal power in all directions, whereby vibration will not be effective enough.
Prior art also teaches a solution in which there is a flexible attachment, that is, a damping element with flexible material around a rigid carrier pin. The object of this is to prevent vibration from moving into the boom system of the construction machine and enable vibration use. The bucket can be used both in bucket use and in vibration use, but regardless of this, it does not clearly have two positions as the action is controlled only by starting and stopping the vibrating unit. The structure of these buckets does not enable distinctive double action, that is, suitable operation solely in bucket use on the one hand and solely in vibration use on the other hand. This kind of vibration bucket is too inaccurate in bucket use as the damping element for the bucket use is flexible when loading is directed to the bucket. Prior art vibration buckets are not efficient enough for compacting earth and not suitable for both bucket use and compacting.
U.S. Pat. No. 5,195,865 discloses a solution in which there is a separate vibrating unit between the bucket and the boom system, which unit comprises a vibrating means, an upper attachment plate, damping rubbers, cylinders and locking pins by means of which the vibrating unit can be connected flexibly to the boom system and locked rigidly. The solution also comprises a lower attachment plate and second attachment cylinders and pins for attaching the vibrating unit to the bucket. In the solution according to U.S. Pat. No. 5,195,865, the vibrating unit is connected on top of the bucket of a digger as a clearly separated additional element between the boom system and the bucket. Said solution enables a flexible operation and an operation that can be locked to be rigid, but the structure is in principle and in implementation difficult because in reference cited the vibrating element is an element like a clearly separate additional element that is between the boom and the bucket on top of the bucket and not integrated into the bucket. The separate vibrating unit between the boom and the
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Koivuranta Pekka
Koivuranta Tapani
Hartmann Gary S.
Takope Oy
Will Thomas B.
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