EP1870548B1 - Slidable latch bolt - Google Patents

Description

The invention relates to a sliding latch for a lid of a container according to the preamble of claim 1.

Such sliding closure latch are known from CH 656 854 and find application as closure elements for plastic transport containers with a plastic lid, which is connected at one longitudinal side by hinges to the container. Both the container and the lid have a circumferential flange, wherein the cover flange rests on the container flange. The opposite sides of the hinge sides of the two flanges of the lid and the container are provided with two parallel to the lid or container edge extending slots, which are aligned in pairs in the closed position. In order to hold the lid in the closed position, there are two sliding locking latches which are inserted in the two pairs of slots. These locking latches have a conically tapering downwards in the cross-section plug-in part, which is guided and secured in the slot of the cover flange. The handle part is wider than the slot and rests with slide rails on top of the cover flange. The male part has one of its lower end upwardly projecting resilient hook. The lids and containers are stacked separately for storage or sale. The lids are stacked one on top of the other. If the lids are aligned the same way when stacked, then the locking latches that are inserted in the lids come to lie one above the other. she hamper the stacking, as the resilient hook of an overhead lid comes to rest on the handle portion of the underlying closure bar. Due to the weight of several stacked lids, it can be so easy to damage locking bolts. To avoid this, the lids are each stacked rotated by 180 °, which means that each of the lids are stacked with their hinge side on the lid with its front with the locking latches alternately. This stacking process is complicated and time consuming.

It is therefore an object of the present invention to provide a sliding closure latch of the type mentioned, which makes it possible to stack a plurality of lids with the same orientation without hindrance, without the closure latches being damaged.

This object is achieved by a sliding latch with the features of claim 1.

The basic idea of this solution is that the locking bolts interlock with each other when stacked on top of each other and remain unloaded. An embodiment of the inventive sliding lock bolt will be explained with reference to the drawings.

Fig. 1

einen im Schnitt perspektivisch dargestellten, verschiebbaren Verschlussriegel;

Fig.2

eine perspektivische Teilansicht eines Stapels von Deckeln mit ineinandergreifenden Verschlussriegeln dargestellt.

Show it:

Fig. 1

a sectional perspective view, sliding lock bolt;

Fig.2

a partial perspective view of a stack of lids with interlocking locking bars shown.

In the figures, the same reference numerals have been used for the same elements and first explanations apply to all figures, unless expressly stated otherwise.

The FIG. 1 shows a displaceable locking bolt 1 shown in section in perspective. The sliding lock bolt 1 has a conical, downwardly tapering male part 3, which is connected via a neck 4 with a handle portion 5, wherein the neck 4 in the slot of a cover flange is managed and secured. The handle part 5 is wider than the slot and rests with slide rails on the top of the cover flange. The conical profile of the male part 3 forms the transition to the neck 4 two shoulders 6, which engage under the lower edge of the lid slot. To assemble the closure bolt 1, it is inserted into the cover slot, the slot edges snapping into the neck 4 after an elastic widening behind the two shoulders 6 and thus holding the locking bolt 1 on the cover 2 (not shown here). The male part 3 has a resilient hook 7 protruding upward from its lower end, as well as a projection 8 intended to engage under the container flange. The handle part 5 has on its upper side a slot-like recess 9. The width of the recess 9 corresponds approximately to the thickness of the hook 7 and the thickness of the neck 4, so that a closure bar 1 with the lower U-shaped part of the hook 7 and the neck 4 fits into the slot-like recess 9 of a similar closure bar 1.

When closing the lid of the male part 3 of the locking bolt 1 penetrates into the slot in the container flange. Below the projection 8, the male part 3 has an inclined ramp surface 10, which is pressed against the spring force of the hook 7 during penetration of the male part of one end of the container slot until the projection 8 snaps and engages under the container flange in the region of the slot end. By the locking latch 1, the lid 2 is securely held in the closed position on the container. To open the lid 2, the locking bolt 1 is moved against the spring force by finger pressure until the plug-in part 3 can be removed from the lower slot.

In the FIG. 2 is a perspective view of a portion of a stack of lids 2 with interlocking Verschlussriegeln1 shown. The cover 2 are stacked the same aligned, that is, in the stack, the cover front sides come to lie one above the other. The locking bolt 1 stacked lid 2 engage with each other, so that the hook 7 of a closure bar 1 of a lid 2 engages in the recess 9 of the underlying locking bolt 1. The hooks are thereby unloaded during stacking.

The slot-like recess 9 in the handle part 5 allows stacking of identically aligned lids. This allows a simple, practical and gentle for the locking latch 1 handling the stacked lid 2.

It is in this closure latch 1 to a cheap, one-piece made of plastic closure element with integrated spring hook. The operation is very simple, since the closing process automatically takes place when the lid is pressed down. The opening is just as simple, with the lifting of the lid, only the locking bolt must be moved against the spring force. The locking bolt is not lost because it is secured to the cover flange.

Claims (2)

1. A displaceable locking bolt (1) for a container with a lid (2) comprising a handle part (5) and an insertion part (3), held in a slit of the lid flange in the used state and being displaceably held between a closed and opened position, with the insertion part (3) penetrating a slit of a container flange when the container is closed and engaging behind said flange with a projection, and that further the insertion part (3) comprises a spring hook (7) which presses the locking bolt (1) in a resilient manner into the closed position during latching, characterized in that the handle part (5) comprises a slit-like recess (9) on its upper side whose width corresponds at least to the thickness of the hook (7) in such a way that a displaceable locking bolt (1) fits with its hook into the recess (9) of a similar locking bolt (1), so that in the case of stacked lids (2) the hook (7) of one locking bolt (1) of a lid (2) will engage in the recess (9) of a locking bolt (1) beneath the same.
2. A locking bolt according to claim 1, characterized in that the locking bolt (9) and the spring hook (15) are made in an integral fashion from plastic.

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