Special receptacle or package – For plate or sheet – Fragile or sensitive
Patent
1998-09-08
1999-07-13
Ackun, Jacob K.
Special receptacle or package
For plate or sheet
Fragile or sensitive
206593, B65D 6300
Patent
active
059213930
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a separator for sheets, in particular fragile sheets such as glass sheets, comprising a strip of support material with a protruding nose at one end.
Such separators are used in the glass sheet industry. The glass leaves the glass melting furnace as a continuous web, which is cut into sheets, after which the sheets are placed upright against each other. The sheets for instance have a height of 3 meters and a width of 6 meters. In order to be able to transport several sheets simultaneously, a number of separators are fitted for instance every 8 to 10 sheets, so that an interspace is created between each packet of glass sheets. Known separators have a thickness of approximately 25 mm. The known separators are usually made of plastic or paper material in order to acquire sufficient strength at a low weight.
The separators are automatically fitted onto a glass sheet after the latter has been cut off, either prior to placing it in a vertical position or during of after it is placed in a vertical position. So as to prevent the separators from sliding down, they are provided at one end with a thickening, called nose in the field, which hooks behind the upper edge of the glass sheet. In order to prevent that a separator shifts or falls off the glass sheet, for instance during manipulation of the glass sheet, the separator can be provided, at the side of the nose, with a detachable connecting means, such as a suction cup.
A drawback to the known separators is that the nose, which is also made of synthetic material or paper material such as a number of layers of corrugated board, must have a height of at least 4 cm in order to possess sufficient shearing strength to bear the separator, since the separator is suspended with its entire weight from its nose. The nose is usually 4 to 8 cm high; a usual height is 6 cm. Consequently, the separator protrudes with the nose 6 cm above the glass sheets, thereby requiring additional transport height and additional storage space for the glass sheets and increasing the risk of damaging the protruding ends of the separators.
It is an object of the invention to improve upon this situation.
This object is realized, according to the invention, with a separator of the type described in the introduction, in which the nose consists of a square angle section with a first and a second leg, wherein the angle section is fitted with its first leg into a recess at the end of the strip of support material.
This ensures that the first leg contacts the strip of support material over a sufficient height to withstand the shearing forces caused by the weight of the separator, while the second leg of the angle section protrudes from the strip of support material. The thickness of this second leg of the, angle section can consequently be far less than the height of the known noses, so that the separator only has to protrude above the glass sheets for at most the thickness of the second leg of the angle section. An additional advantage of this is that the strip of support material can have a shorter length. If the strip extends up to the upper face of the second leg of the angle section, the upper edge of the strip will be located at a distance equal to the (small) thickness of the second leg above the glass sheets. If the length of the first leg is sufficient with a view to the required shear force transfer between nose and strip, the upper edge of the strip may be at a lower level, wherein it is even possible that the first leg of the angle section protrudes above the upper edge of the strip with some of its length. In the latter case, a split will be formed between a nose and an upper edge of a subsequent glass sheet due to the recessed location of the upper edge of the strip.
The second leg of the angle section preferably protrudes on the side of the strip of support material where the recess in the shape of a recessed portion has been provided, so that the moment which is applied on the transition from the first leg of the angle section to the second leg, remains low.
The
REFERENCES:
patent: 1582722 (1926-04-01), Adams
patent: 3708946 (1973-01-01), Cahill
patent: 5132156 (1992-07-01), Trassare, Jr. et al.
Ackun Jacob K.
Besin B.V.
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