NL7906528A - Double walled plastic crate - has side with handgrip opening contg. snap in insert to cover sharp edges around opening - Google Patents

Abstract

The plastics crate has side panels which are at least partly double-walled (2a,b) and contain a hand grip opening (5). At the top of the opening, an insert engages or connects with (10,11) the wall edges (6,7) forming the opening. The insert may have a recess (11) for a snap-in fit by a projection (10) on the wall (2a) edge (7). The insert may form a complete surround for the opening (5). It may consist of two oval ring-shaped portions. The internal profile of the insert is pref. rounded.

Description

* - 79 5031 / vdV / asB - -

Applicant: Wavin B.V.

litel: Handle double-walled container.

The applicant mentions the inventor as C.J.B. Benraae / in Hardenberg.

The invention relates to a plastic container provided with a bottom and upright side walls, which are at least partly double-walled, as well as a carrying handle opening in the double wall.

Such a plastic bin or crate is known. Due to injection molding considerations, the handle for carrying such a plastic tray cannot be optimally designed. As a result, two thin, sharp-feeling edges of the carrying handle are always present.

Using the iO Set with a handle with upward-facing edges that does give a soft-touch handle is not acceptable, as water and dirt collects in the cavity.

On the other hand, an opening to the outside, as is often used with crates, is also not recommended, as this gives considerable weakening and consequently difficulties with symmetrical loads during stacking and carrying.

The object of the invention is now to provide a plastic box or crate of the above-mentioned type, wherein these drawbacks do not occur.

This object is achieved according to the invention in that the top side of the carrying handle opening comprises at least one wall part connecting piece which is connected or cooperates with the double wall parts delimiting the top side of the carrying handle opening.

When such a wall part connecting piece is used, handles are obtained which allow a good portability of the plastic box or crate.

The wall part connecting piece cooperates very efficiently with the double wall parts, so that the wall part connecting piece can improve the properties of the flTflaggTeepnpen-f-ng in injection molded plastic trays or crates.

7906528 * / ¾ 79 5031 / vdV / on _ 2 _

The wall part connecting piece very expediently extends over the entire circumference of the carrying handle opening, the wall part connecting piece expediently consisting of a completely closed single ring. In this way one obtains. optimal handle opening, since the periphery of the handle opening is now fully provided with a wall part connecting piece, so that no sharp protruding parts are present anymore.

The wall part connecting piece expediently consists of two annular parts, which cooperate with one another on either side of the carrying handle opening, in which case the annular parts are advantageously made rounded.

In this way a good handle opening is achieved, which can be very easily fitted by snapping-in the loose ring parts, while moreover a considerable reinforcement is obtained, so that the shaped carrying handle opening in the box or crate no longer leads to weakening of the crate, and consequently nor do any difficulties arise with asymmetrical loads when stacking and carrying such plastic bins or crates.

The invention will now be elucidated on the basis of an exemplary embodiment with the aid of the drawing, in which:

Pig. 1 shows a part of a plastic container according to the invention with carrying handle opening;

Fig. 2 is a sectional view taken on the line II-II of fig. 1;

Fig. 3 another variant of a handle opening in a wall of a plastic container;

Pig. k yet another variant of a ring to be used in a plastic container according to the invention for closing the edges of a carrying handle opening, and

Fig. 5 a part of a cross-section of another variant.

Fig. 1 shows a wall 2 of a plastic container 1, which wall is provided with a carrying handle opening 3. The wall 2 is double-walled with an inner wall part 2a extending from the bottom to the top edge k of the plastic crate 1, while the outer wall part 2a of the upright wall 2 extends only over a certain height of the crate.

7906528 - 3 -,

In the upright wall 2, a carrying handle opening 5 is formed by recesses in the inner wall parts and outer wall parts 2a and 2b.

It will be clear that the edges 6 and 7 as well as 8 and 8a, under normal circumstances, to remove a sharp-feeling edge from the 5 'yaw handle opening 5, at least one wall connecting part 9 is provided which snaps together with the edges 6 and 7

By snapping together it is ensured that the wall connection part 9 remains firmly connected to the plastic box or crate.

Two ring sections 9 and 9f are expediently used, so that the entire circumference of the carrying handle opening 5 is just covered by the two ring halves 9 and 9 '.

In order to ensure a good connection of the ring parts 9 and 98 with the edges of the carrying handle opening 5, the edge 7 is provided with a protruding part 10, which cooperates with a recess 15 11 in ring 9j, while corresponding parts 101 and 11 * cooperate with each other forming a good click connection between the ring portion 9 'and the lower edges 8 and 8a of the carrying handle opening 5 «

In order to avoid having to work with a ring of a-symmetrical shape, it is recommended that the part 12 of the inner wall part 2a of the plastic box or crate is staggered outwards in the direction of the outer wall part 2b of the upright wall, such that walls 2a and 2b run parallel there.

The ring parts 9 and 9 * in the embodiment according to Fig. 2 explore together along a dividing wall 17.25 In Fig. 5 the same embodiment is shown as in Fig. 2, but the two ring parts 9 and 9 'in Fig. 2 form an integral ring 9 &.

In Fig. 3 a still further variant is shown, in which the periphery of the carrying handle opening is covered by two identical injection-molded ring parts 13 and others, which engage together by means of a groove connection 15.

In this way a very good covering of the edges of the carrying handle opening is obtained with the aid of parts which are easy to manufacture and to install.

35 "" Not only is the outer ring part 13 provided with 7906525 -i A- - ridge cams 16, but also the inner ring part 1½ of cams 16 <., Which have a good cooperation of the ring parts 13 and 14 with the upright wall parts 2a. and 2b guarantees. It can also be seen that the two ring parts 13 and 14, here both cooperate with the upright outer wall part 2b using an upright projection 8a, but also the two ring part 14 by means of an upright projection 8b, which is located on the upright wall section 12.

Fig. ** shows a variant of a carrying handle opening 5 according to the invention. The top edge of the carrying handle-0 opening is t. w. edge 3a curved upwards and the lower edge 3b of the carrying handle opening curved downwards.

In this way, a very large wall reinforcement is obtained, which prevents the handle bending inwards when stacking filled plastic trays or crates.

Naturally, the ring parts 9 and 9 ', respectively. 13 and 1½ in such a case adapted to this curved top and bottom edge 3 & and 3b

In the variant of the carrying handle opening 5 shown in fig., The edge parts 3c and 3d of the carrying handle opening 20 extend parallel to the upright walls. Here, therefore, the curved shape as it occurs at the carrying handle opening edges 3a and 3b is missing.

For the sake of completeness, it is pointed out that the ring portion 9 which cooperates with the outer upright wall portion 2b is provided with upright projections 16, which effectively ensure a good cooperation between upright wall portion 2b and ring portion 9.

- conclusions: - 7906528

Claims (6)

Plastic container provided with bottom and upright side walls, which are at least partly double-walled, and a carrying handle opening in the double wall, characterized in that the top side of the carrying handle opening comprises at least one wall part connecting piece which is connected or cooperates with the double wall sections that define the top of the carrying handle opening. Plastic container according to claim 1, characterized in that the wall part connecting piece snaps together with the double wall parts. 3 * Plastic container according to claim 1 or 2, characterized in that the wall part connecting piece extends over the entire circumference of the carrying handle opening. Plastic container according to Claims 1 to 3, characterized in that the wall part connecting piece consists of two annular parts which cooperate with each other and are snapped on either side of the carrying handle opening. Plastic container according to claims 1 to 3, characterized in that the wall part connecting piece consists of a closed ring. 6. Plastic container according to claim 1 to 5, characterized in that the annular parts are rounded. Plastic container according to one or more of the preceding claims, characterized in that the outer circumference of the carrying handle opening is curved. 7906528 ~ _ 6 _ * 'Λ Plastic container as claimed in one or more of the foregoing claims, characterized in that the wall-part connecting pieces consist of two annular parts, which snap into each other. Plastic container according to one or more of the preceding claims,%, characterized in that the wall parts (2a, 2b) extend substantially parallel at the location of the carrying handle opening. ********** 7906528