Supports: racks – Special article – Mattress type
Reexamination Certificate
1999-05-27
2001-04-24
Chin-Shue, Alvin (Department: 3634)
Supports: racks
Special article
Mattress type
Reexamination Certificate
active
06220457
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for temporarily storing manufactured items, particularly mattresses.
In mattress-making there is the need to temporarily store the mattresses between the various manufacturing steps by stacking them in order to reduce their bulk for packaging and transport. The temporary stacking of mattresses is currently performed manually and entails considerable physical effort on the part of the assigned personnel. The need accordingly arises for an apparatus which allows to store the mattresses during the idle times of the manufacturing process and to make them quickly available at the appropriate time without requiring excessive effort or wasting time.
SUMMARY OF THE INVENTION
The aim of the present invention is to meet the above needs of conventional devices, i.e., to provide a magazine for mattresses which allows to insert and remove the mattresses to be assigned to the various steps of the manufacturing process, all without requiring excessive physical effort and wasting time.
Within the scope of this aim, an object of the present invention is to provide an apparatus which has a simple structure, is relatively easy to provide in practice, safe in use, effective in operation and having a relatively low cost.
This aim and this object are both achieved by the present apparatus for temporarily storing manufactured items, particularly mattresses, characterized in that it comprises: a framework for supporting a plurality of horizontal and superimposed frames for supporting the mattresses to be stored, said framework being provided with means for guiding said frames vertically; means for individually actuating said frames between a lowered position, in which they are mutually close so as to form a stack, and a raised position, in which they are mutually spaced by an extent which is greater than the height of the individual mattresses; a platform for receiving a mattress which lies above the upper frame of said stack; means for individually transferring and positioning said mattresses on said receiving platform and for individually removing said mattresses from said receiving platform, said transfer and removal means being synchronized with said means for actuating said frames so that during the storage of the mattresses the upper frame of said stack is raised until the mattress is brought to a level which, with respect to the receiving platform, is greater than the height of one mattress, while during mattress removal the lowest of the raised frames is lowered below said receiving platform, so as to deposit the mattress onto said receiving platform.
REFERENCES:
patent: 1071671 (1913-08-01), McCurdy
patent: 1114455 (1914-10-01), Fisher
patent: 2444776 (1948-07-01), Kalning et al.
patent: 3357569 (1967-12-01), Goodman et al.
patent: 4474525 (1984-10-01), Yoshio
patent: 4961273 (1990-10-01), Fay
patent: 1245860 (1967-07-01), None
patent: 2651365 (1978-05-01), None
Chin-Shue Alvin
Josif Albert
Modiano Guido
O'Byrne Daniel
Purol Sarah
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