Receptacles – Closures – Having means for securing or retaining closure in its closed...
Patent
1993-09-27
1996-03-26
Fidei, David T.
Receptacles
Closures
Having means for securing or retaining closure in its closed...
292 87, B65D 4516
Patent
active
055013562
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a closure catch, off a type which is particularly suitable for use with box files.
Various types of closure catches for box files are known, a particularly popular type of catch being that shown in British patent no. 1,572,245, which comprises a pair of cooperating catch and latch members which are adapted to be attached to the inner faces of a wall and a lid of a file box, so as to snap together and thus hold the wall and lid in the closed position. However, this type of catch has certain disadvantages, particularly because it has to be attached to the cooperating parts of the file box by means of rivets or similar connectors, and also because its movable parts are inside the box and thus may become caught on the contents of the box.
Accordingly, the present invention seeks to provide a closure catch device particularly suitable for use with box files, which is easily attached to a box file, and in which the cooperating closure parts do not protrude unduly into the internal space of the box.
The invention further seeks to provide a closure catch which is particularly suitable for use with boxes sold in a "flat pack" form, so that they can be easily and quickly assembled by the user.
The construction of the catch may also be such that it cooperates with the structure of a "flat pack" filing box, in such a way as to hold the assembled parts in their proper relative positions.
Accordingly, a closure catch according to the invention, which is adapted to hold together, the edges of two cooperating parts of a container such as a side wall and a lid, comprises a first member which is adapted to fit onto the edge of the side wall or lid or onto a recess formed at said edge, and carries an outwardly facing projection, and a second member which is adapted to fit onto the cooperating edge of the lid or side wall and carries an inwardly facing projection adapted to snap over the outwardly facing projection of the first part.
Preferably, at least one of the members is formed as a hinged "sandwich" construction, and carries cooperating stud like formations on its inner surface, adapted to grip the material of the box to which it is attached, or to fit in cooperating apertures of the box. In addition, the cooperating edge of the box may be formed with a cut-out, whilst the catch is formed with a central body portion which fits into the cut-out, and peripheral flange portions which fit around the edges of the cut-out.
In one embodiment of the invention the other catch member comprises a generally U-shaped body portion with a pair of substantially parallel legs adapted to fit over the other, cooperating edge of the box, and an arm extending outwardly from the base of the U which carries a projection for engagement with the corresponding projection of the other part.
According to a further feature of the invention there is provided a closure catch particularly adapted for use with a box file, of the kind in which the walls comprise double layers of rigid material such as corrugated cardboard, the catch comprising a first body part of moulded plastics material, adapted to be folded into a "U-section" to engage around the edge of one wall of the box, so that the base of the U is adjacent to the edge of the wall, and carrying a protrusion which extends in the direction of the adjacent wall to which it is to be clipped to close the box; and a second body member, adapted to fit onto the said adjacent wall edge, and forming a detent member which is adapted to receive the protrusion of the first member. Preferably the second body member fits into a recess or cut-out in the said adjacent edge so as to be flush with the box surface.
The invention also extends to a box made from a folded blank, and having cooperating closure catch members attached to adjacent edges of a side-wall lid, the catch members being constructed so as to engage around the said edges to assist in maintaining the folds of the box in the assembled position.
Some embodiments of the invention will now be described by way of example, with
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patent: 5158329 (1992-10-01), Schlack
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