SK3162003A3 - Grooved laths and self-catching tabs for forming floors and method for machining said laths - Google Patents

Abstract

The invention concerns laths (1, 1') with grooved longitudinal edges capable of being interlocked to form a floor. The invention is characterised in that the laths comprise on their right a groove (3) arranged substantially perpendicular to the surface of the lath, comprising an indentation (5) on the side of the groove opposite to the lateral edge of the lath and parallel bevels (7, 9) oriented towards said lath edge and arranged more or less at 45 degrees relative to the sides of the groove, which co-operate when installed with a protuberance (19) of the left of the lath, matching in shape said groove (3), enabling through the bevels (7, 9) the protuberance (19) to be inserted at an angle of about 45 degrees into the groove (3) and enabling by simple pressure to interlock two successive laths.

Description

The invention relates to decking as well as moldings, flat boards or panels provided with grooves and tongues on the longitudinal edges, which fit easily when laying the floor or wall cladding.

BACKGROUND OF THE INVENTION

The present technique has a number of different fixtures and systems which allow the easy laying of the floor parts by interlocking their side edges. These parts are decks, moldings or boards made of different materials (solid wood, laminated wood, synthetic material and others).

For example, systems conforming to this definition are described in the following documents:

WO00 / 20705 mentions the use of a separate fastener.

Document WO00 / 20706 also mentions a fastener which is provided with a ductile tongue.

EP-0 843 763-A discloses a system in which the fasteners are provided on opposite edges of the decking and is characterized by its own mechanical means for securing their connection.

DE-19933343.2 describes spring-forming elements which penetrate into a groove of an adjacent plate.

Other documents of the same type are described in these documents. It is characteristic that, in the case of existing different systems without additional fasteners, the mechanical connection is achieved simultaneously by forward movement and rotary movement.

TP 5Peo X

DE-U-7928703 discloses a system similar to the present invention, but joining the decking requires a rotary movement allowing the anchoring of two adjacent decking to each other. The simple assembly of the decking at an angle of 45 ° as described in this application is not possible according to this document.

SUMMARY OF THE INVENTION

In particular, the object of the present invention is to improve prior art joining techniques by proposing to simplify the profiles of their grooves and lips with fewer machining operations while maintaining their easy storage and efficient joining.

The invention envisages such an arrangement of profiles that allows the decking to engage directly by simply pressing without rotating movement.

For easy machining of the lateral edges of the various boards, the most suitable access positions of the various working tools are recommended.

The invention proposes the simultaneous machining of both opposing side faces with fewer operations and so that at least some of these operations can be performed semi-continuously without substantially adjusting the position of the cutting tools. For most operations it is assumed to maintain the perpendicular position of the tools on the front of the decking.

The present invention provides a deck having a groove formed at the edge of the deck perpendicular to its flat side, which groove is provided with 45 ° bevels, and when assembling the decking, this groove fills a projection formed on the opposite side edge of an adjacent deck.

Overview of the figures in the drawing

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be explained in more detail by reference to the drawings, in which: 1 shows a cross-section of two joined decking; Fig. 2, 3 and 4, the right profile of the deck decked in succession in three steps; Fig. 5 and 6 show two successive shots on the left deck profile.

DETAILED DESCRIPTION OF THE INVENTION

In FIG. 2 to 6, the shape and the cutting plane of the tools are shown in a thick line, the part being shown in solid line up to the final machining shape of the respective side.

The shape of the part on which the special machining is carried out is completed with dotted lines.

The decks in the drawing are shown in a position corresponding to their position on the floor. The edge on one side is the right profile, the edge on the other is the left profile.

These profiles complement each other, that is, they are designed so that the right profile of one deck joins the left profile of an adjacent deck.

An essential feature of the joining of the decking according to the invention is the arrangement of the steps to make it so that the deck to be laid can be moved to the already laid deck in the same plane, without unnecessary rotation, then pushed down at approximately 45 °. has already been laid before.

This is made possible by one edge of the deck 10 shown in FIG. 2 and 4, as a right profile, is provided in a bottom-up direction by a groove 3 which faces upwards, perpendicular to the flat side of the deck 1. This groove is provided with a recess 5 which is made in its wall in the direction away from the edge of the deck. terminated by a chamfer 7 directed towards the side edge at an angle of approximately 45 °. A chamfer 9 is provided on the opposite side of the groove 3 in parallel with the chamfer 7.

The chamfer 9 is followed by a flat 11 extending to the edge of the edge.

The recess 5 is made into the deck body and continues in the upward direction beyond the chamfer 7 by a rectangular slot 12, which is provided with a small recess 13. Other possible shapes can be found for this upper part.

The opposite left deck profile is shown on the adjacent deck in FIG. 1. It is designed so that its shape complements the shape of the right profile described above. This shape corresponds to the projection 19, which fits into the groove T when the decking is joined

In FIG. 2 to 6, the shape of the tools 21, 23, 25, 27 and 29 used to form the right and left profiles is shown.

It should be noted that the working position of the tools shown takes into account the direction of laying the deck when building the floor. However, other tool positions can also be selected and the machined deck can be opposed to different tool settings.

Except for the step shown in FIG. 4, the tools operate at right angles to the upper and lower planes of the decking. The step shown in FIG. 4 is the only one that is carried out at an angle of approximately 45 ° to the plane of the floorboards.

It is clear from the above that the number of work steps is significantly lower, that the shape of the tools is relatively simple and that the various steps can be performed by conventional milling-type machines.

Machining can take place simultaneously on both edges of the deck.

The invention also envisages the final steps for complete finishing of the deck (smoothing, painting and others).

The bevels 7 and 9 make it possible to insert the projection 19 of the left profile and insert it into the right profile of the adjacent deck in the same plane. The projection engages easily at an angle of approximately 45 °.

To allow the left deck profile dopln to fit easily into the right deck profile I, some play is left between these additional profiles (Fig. 1). For the same purpose, corresponding rounding is also envisaged, allowing a 45 ° angle to be easily inserted into an already laid deck.

Claims (2)

Decks (1, 1 ') whose longitudinal edges are provided with grooves that fit together when stacked when one longitudinal edge, called the right profile, is provided with a groove (3), and the opposite edge, called the left profile, is provided with a projection (19), the shape of which complements the shape of said groove (3), which is machined and provided with a recess (5) and parallel chamfers (7, 9) directed towards the side edge of said decking, are formed at an angle of approximately 45 ° and cooperate with the left profile projection (19) of the adjacent deck in the stowed position, characterized in that the chamfers (7, 9) make it possible to insert said projection (19) down at a slight pressure without excessive deformation and at an angle of approximately 45 ° (3) to bring both adjacent floorboards in the same plane. Decking according to claim 1, characterized in that the left and right decking profiles are provided in an upward extension from the groove in the form of a complementary stepped assembly terminated by a straight joint without the spacing of the upper surfaces.