Fluent material handling – with receiver or receiver coacting mea – Filling means with receiver or receiver coacting means – Flexible or collapsible receiver
Patent
1999-08-05
2000-12-19
Douglas, Steven O.
Fluent material handling, with receiver or receiver coacting mea
Filling means with receiver or receiver coacting means
Flexible or collapsible receiver
141 10, 141 98, 141108, 141114, 141314, 141231, 414724, 414920, B65B 104, B65B 304, B67C 300
Patent
active
061616001
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a filling device for filling bags with bulk material, which filling device comprises a carrier which is adapted for fixing to a lifting device and which is provided with a number of load hooks for fastening thereto of a bag, which bag is provided for this purpose with fastening means such as loops or eyes.
BACKGROUND OF THE INVENTION
Such a filling device is known from EP 376 942 B1. The known filling device comprises a scooping bucket provided on the underside with a closable outlet pipe. On either side of the outlet pipe are arranged two curved hooks for fastening thereto a bag which is provided for this purpose with fastening means.
In practice the known filling device is used in the filling of bags, for instance so-called big bags, with bulk material such as sand, gravel or rubble. For this purpose the filling device is mounted on a lifting device such as a mechanical shovel. Using the lifting device the filling device is then transported to a heap of sand, gravel or other material with which the bag must be filled. The filling device is filled by making scooping movements with the carrier, such as the scooping bucket, in the heap of filling material by appropriate control of the lifting arms of the lifting device. A bag is subsequently fastened to the filled scooping bucket, whereafter the bulk material is poured out of the scooping bucket into the bag by opening the outlet pipe. A filled bag is then transported away from the heap using the lifting device and taken to a predetermined position for further transport. When the lifting device has arrived at the predetermined position the bag is set down and subsequently released from the hooks of the filling device.
In the known filling device the assistance of at least one person is always required for fastening the empty bag to the hooks and for releasing the lowered, filled bag from the hooks. This human operation is particularly time-consuming. The number of bags which can be filled in one hour with the known filling device amounts on average therefore to no more than fifteen. When the driver of the lifting device performs these operations himself, even this number of fifteen bags per hour will in all likelihood not be achieved. This number is however feasible when an additional member of staff performs these operations. Making use of an additional member of staff does however have the effect of increasing costs.
SUMMARY OF THE INVENTION
The invention has for its object to provide a filling device of the type stated in the preamble which obviates the above mentioned drawbacks.
This is achieved according to the invention by providing a filling device characterized in that the load hooks are formed such that during operation a wholly or partially filled bag is automatically released from the load hooks by setting down the bag and moving the lifting device away.
With the filling device according to the invention it is possible to fill approximately sixty bags per hour. This is an improvement of 400% relative to the known filling device.
In a preferred embodiment of the filling device the load hooks are L-shaped, wherein the load hooks are each provided with a leg running substantially parallel to the underside of the carrier. In this embodiment a filled bag remains better suspended from the filling device, also in difficult conditions such as when driving over uneven terrain. In this embodiment the operational safety of the filling device is therefore improved further.
The safety of the filling device is still further improved in a further embodiment in which a locking element is added to at least one load hook for locking the load hook during operation under the influence of the weight of the at least partially filled bag. The locking element is preferably bracket-shaped and the load hook comprises a recess for receiving the bracket-shaped locking element. In this further embodiment there is very little danger of the filled bag detaching from the filling device during operation.
In yet another prefe
REFERENCES:
patent: 5004022 (1991-04-01), Carlsson
patent: 5269579 (1993-12-01), DeCrane
patent: 5400837 (1995-03-01), Kelly et al.
patent: 5590482 (1997-01-01), Peterson et al.
patent: 5787945 (1998-08-01), Riemersma
Douglas Steven O.
Maust Timothy L.
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