HK1108178B - Fixing element for fixing panels to one another as well as cabinet having panels joined by such a fixing element - Google Patents

Description

The invention relates to a fixing element for fixing a first and second panel to one another, said fixing element being provided on both sides with first and second insertion ends facing away from one another for insertion in a complementary cut-out in each panel, comprising at least a first snap-fit member on the first insertion end and at least one associated first bearing surface facing said snap-fit member for clamping the first panel therebetween, as well as at least a second snap-fit member on the second insertion end and at least one associated second bearing surface facing said snap-fit member for clamping the second panel therebetween.

Such a fixing element is, for example, used with cabinets built up of panels that are supplied to the consumer as a pack in unassembled state and thereafter can be assembled by the consumer. This enables the producer to keep the assembly and transport costs down. However, the prerequisite is that the consumer is able to assemble the cabinet in a simple manner. An aid to this end is the fixing element described above. One insertion end of the element is pushed into a cut-out in a panel and clicked into place, after which it is secured with respect to the panel in the direction of insertion and the other insertion end protrudes from the panel. Thereafter a subsequent panel with a cut-out can simply be clicked into place over this protruding insertion end.

A fixing element of this type is known. The known fixing element comprises a cylindrical part with a snap-fit member at both ends and has a flange between these ends, each snap-fit member interacting with the respective face of the flange facing the snap-fit member for clamping a respective panel therebetween.

A disadvantage of the known fixing element is that the flange is located between the panels fixed to one another, as a result of which the panels do not adjoin each other and therefore a gap remains between them. This is not only undesirable from the point of view of aesthetics but also in particular if the panels are used to construct a cabinet, because dust can penetrate through the gaps into the interior of the cabinet and can reach the items located therein.

The aim of the present invention is to provide a fixing element for fixing panels to one another in such a way that these, at least at the location of the fixing, are directly in contact with one another.

The patent document US2004/0208728 describes a fastener for securing first and second members together at opposing respective flat surfaces thereof, whereby at the point of joining the first member has an aperture concentric with an aperture of the second member. The fastener is composed of a unitary plastic construction, and is formed in the general shape of a tube having two opposed ends. In particular, the fastener comprises a substantially tubular body having a first tubular member, an opposed second tubular member and an interior bore extending therethrough. The outer diameter of the first tubular portion is smaller than the outer diameter of the second tubular portion. The first and second tubular portions each include anchoring means for securely engaging and retaining a portion of the first member and second member to yield a secure connection therebetween.

Patent document US5758987 describes a fastener for connecting-panel members in a flush position. The fastener includes a generally elongated body, a shoulder attached to the body, the shoulder being received substantially within the apertures of the panel members and connecting means attached with the body for securing the fastener in the apertures of the panel members. The connecting means comprise at least two generally flexible legs snap-fit within each aperture, wherein each of the generally flexible legs define a generally elongate member attached at a first end to the body and having a terminating end, with the terminating end being closer than the first end to the shoulder of the fastener.

This aim is realised by providing the fixing element with bearing surfaces that lie in the same plane in different positions. Such an embodiment of the fixing element makes it possible for the panels fixed to one another with this to be directly in contact with one another, because in the assembled state no part of the fixing element is located between the panels, whilst after clicking into a cut-out in a panel in the direction of insertion the fixing element is nevertheless secured with respect to that panel. The shape of the cut-outs in the respective panels is in this case matched to the shape of the respective insertion ends of the fixing element

In a preferred embodiment the insertion ends each comprise a box-shaped part with a bearing side, which box-shaped parts are joined to one another at said bearing sides and are rotated 90° relative to one another about an axis oriented in the direction of insertion, so that the bearing side of each box-shaped part has a joined and a free portion, wherein the free portion of the bearing side of a first box-shaped part forms the bearing surface that interacts with a snap-fit member on a second box-shaped part for clamping a panel between them and the free portion of the bearing side of the second box-shaped part forms the bearing surface that interacts with a snap-fit member on the first box-shaped part for clamping a panel between them.

Such an embodiment makes a robust panel joint possible and has as a further advantage that with a construction using such a fixing element fixing of a panel in an incorrect position can be prevented by making the orientation of respective panel cut-outs of a panel joint differ from that of another panel joint. Such an embodiment provides for further simplification of the assembly operations.

Preferably the fixing element is an injection-moulded one-piece moulded part made of plastic, such as, for example, polyamide.

The invention also relates to a cabinet comprising panels that have been fixed by means of at least one fixing element according to the invention. Such a cabinet comprises, for example, a base panel with a first set of cut-outs on a first side for accommodating a first set of fixing elements and a second set of cut-outs on an opposing side for accommodating a second set of fixing elements, as well as a first side panel with an edge folded over at a right angle with cut-outs for accommodating the first set of fixing elements therein and a second side panel with an edge folded over at a right angle with cut-outs for accommodating the second set of fixing elements therein.

The invention will now be explained on the basis of an illustrative embodiment, with reference to the following figures:

• Figure 1 is a perspective view of a fixing element according to the prior art,
• Figure 2 is a perspective view of a fixing element according to the invention, with panels partially shown,
• Figure 3 is a perspective view of the fixing element in Figure 2, shown partially exposed,
• Figure 4 is a plan view of the fixing element in Figures 2 and 3,
• Figure 5 is an exploded perspective view of a cabinet with panels that are fixed to one another with a fixing element according to the invention, and
• Figure 6 is a perspective view of the cabinet in Figure 5 in assembled state.

For the purposes of illustration, a fixing element for panels according to the prior art is shown in Figure 1. This fixing element has a cylindrical part 31 with a first insertion end 32 provided with snap-fit members 26 and a second insertion end 33 provided with snap-fit members 27. Between these insertion ends there is a flange 30, with bearing surfaces 24, 25. On assembly, one insertion end 32, 33 is pushed into a cut-out in a panel having essentially the same diameter as the cylindrical part. Once the panel has passed the snap-fit member 26, 27 concerned, it is secured between the snap-fit member 28, 27 and the bearing surface 25, 24 of the flange 30 facing this snap-fit member. The distance between a respective snap-fit member and bearing surface is in this case obviously matched to the thickness of the panel to be securely clamped for producing a joint with essentially no play. Clearly, after assembly flange 30 is located between the panels fixed using this element.

Figure 2 shows the fixing element according to the invention, the insertion ends 12, 13 each comprising a box-shaped part 2, 3 having a bearing side, which parts are joined to one another at the bearing sides and are rotated 90° relative to one another. The free portion of the bearing side of the first box-shaped part 2 forms the bearing surface 4 that interacts with the snap-fit members 7 on the second box-sbaped part 3 for clamping panel 9 between them, and the free portion of the bearing side of the second box-shaped part 3 forms the bearing surface 5 that interacts with the snap-fit members 6 on the first box-shaped part 2 for clamping panel 8 between them.

Figure 3 shows the fixing element partially exposed, as a result of which it is apparent that this is not a solid element. This is desirable from the standpoint of production technology and in addition results in a saving of material.

On assembly, box-shaped part 3 is, for example, pushed into cut-out 11 in panel 9, the snap-fit members 7 then first spring inwards and after passing through panel 9 these spring outwards once more and thus secure the panel between these snap-fit members 7 and the bearing surfaces 4. Obviously, in this case as well, the distance between the respective snap-fit members and bearing surfaces is matched to the thickness of the panel to be securely clamped for producing a joint with essentially no play. Because bearing surfaces 5 and 4 lie in the same plane, after assembly bearing surface 5 is located in the same plane as that side of panel 9 that is braced against surface 4 and box-shaped part 2 protrudes on said side, so that a second panel can be securely clicked onto it.

Because both insertion ends 12,13 are made the same in this embodiment, it makes no difference which end is pushed into a panel first. This simplifies assembly. Figure 4 shows clearly that the box-shaped parts 2, 3 are rotated 90° relative to one another in the embodiment shown.

Figure 5 shows a cabinet 100 according to the invention having panels 14, 15, 17 that are fixed by means of fixing elements 51-54 according to the invention. The embodiment shown comprises a base panel 14 with a first set of cut-outs 41, 42 on a first side for accommodating a first set of fixing elements 51, 52 and a second set of cut-outs 43, 44 on an opposing side for accommodating a second set of fixing elements 53, 54, as well as a first side panel 15 with an edge 16 folded over at a right angle with cut-outs 61, 62 for accommodating the first set of fixing elements 51, 52 therein and a second side panel 17 with an edge 18 folded over at right angles with cut-outs 63, 64 for accommodating the second set of fixing elements 53, 54 therein. Lastly, Figure 6 shows this cabinet in assembled state.

Claims (8)

1. Fixing element (1) for fixing a first (8) and second (9) panel to one another, said fixing element being provided on both sides with first (12) and second (13) insertion ends facing away from one another for insertion in a complementary cut-out (10,11) in each panel (8, 9), comprising:

   • at least a first snap-fit member (6) on the first insertion end (12) and at least one associated first bearing surface (5) facing said snap-fit member (6) for clamping the first panel (8) therebetween, as well as

   • at least a second snap-fit member (7) on the second insertion end (13) and at least one associated second bearing surface (4) facing said snap-fit member (7) for clamping the second panel (9) therebetween,

   characterised in that said bearing surfaces (4, 5) lie in the same plane is different positions, so that panels that have been fixed to one another with the fixing element are directly in contact with one another.
2. Fixing element according to Claim 1, wherein the insertion ends (12, 13) each comprise a box-shaped part (2, 3) with a bearing side (201, 202), which box-shaped parts are joined to one another at said bearing sides and are rotated relative to one another about an axis oriented in the direction of insertion, wherein

   • the free portion of the bearing side of a first box-shaped part (2) forms the bearing surface (4) that interacts with a snap-fit member (7) on a second box-shaped part (3) for clamping a panel (9) therebetween and

   • the free portion of the bearing side of the second box-shaped part (3) forms the bearing surface (5) that interacts with a snap-fit member (6) on the first box shaped part (2) for clamping a panel (8) between them.
3. Fixing element according to Claim 2, wherein the box-shaped parts (2, 3) are rotated 90° relative to one another.
4. Fixing element according to one of the preceding claims, wherein the fixing element is a single piece.
5. Fixing element according to one of the preceding claims wherein the fixing element is made by injection moulding.
6. Fixing element according to one of the preceding claims wherein the fixing element is made of plastic such as polyamide.
7. Cabinet comprising panels (14, 15, 17) that have been fixed by means of at least one fixing element (1) according to one of the preceding claims.
8. Cabinet according to Claim 7 comprising a base panel (14) with a first set of cut-outs (41, 42) on a first side for accommodating a first set of fixing elements (51, 52) and a second set of cut-outs (43, 44) on an opposing side for accommodating a second set of fixing elements (53, 54), as well as a first side panel (15) with an edge (16) folded over at right angles with cut-outs (61, 62) for accommodating the first set of fixing elements (51, 52) therein and a second side panel (17) with an edge (18) folded over at a right angle with cut-outs (63, 64) for accommodating the second set of fixing elements (53, 54) therein.