FI94504C - Method for making glulam logs - Google Patents

Description

In the method according to the invention, it is more advantageous to use vertical seams, in which case any glue extrusions or glue extrusion spaces do not remain visible in the final structure, but are covered when the logs are stacked on top of each other.

The invention will now be described in detail with reference to the accompanying drawings, in which Fig. 1 shows a cross-section of a glulam log produced by the method according to the invention, Fig. 2 shows a second construction of the glue extrusion space and Fig. 3 shows a third construction of the glue extrusion space.

The glulam log according to Fig. 1 is manufactured according to the invention in such a way that the log lamellas 1 and 2 are separately planed to their final shape, i.e. their mating surfaces 4 and 5 as well as the outer surfaces 11 and 12 and the top and bottom edge tongues are separately planed on both log lamellas.

In addition, the upper and lower edges of the abutment surfaces 4 and 5 to be joined together of the two log lamellas are preferably machined in the same planing step with small rectangular grooves 7 and 8, which in the joined glulam log form

Figure 2 shows another embodiment of the invention, in which the glue extrusion space 6 is formed only by a groove 9 with a rectangular cross section 30 machined from one of the log lamellae 2.

Figure 3 shows a third embodiment of the invention, in which the adhesive extrusion space 6 is formed by a hidden groove 10.

The concealed groove 10 is formed by machining into the surfaces of the abutment surfaces 4 and 5 at a distance from the edges 35 of the abutment surfaces which, when the log lamellae are joined together, form a hidden cavity into which the adhesive 94504 4 can escape.

In the above embodiments of the invention, the adhesive extrusion spaces are shown in a substantially rectangular shape, but it is clear that the cross-section of the adhesive extrusion space can vary greatly from case to case, consisting of different angular or circular shapes. Irrespective of the essential shape of the adhesive extrudate, it has the function that, when the log lamellae are compressed, the excess adhesive can be discharged into the adhesive extruder space 10, where it cannot contaminate the actual outer surface of the log and does not cause aesthetic harm to the log.

The invention has been described above by way of example with the aid of the accompanying drawing, the various embodiments of the invention being possible within the scope of the inventive idea defined by the claims.

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PATENT CLAIM ET

94504 5 1. A method for producing a glulam log, in which the log slats (1,2) are glued together into 5 solid logs (3), characterized in that - the log slats (1,2) are sawn and planed to their final dimensions separately, and - the finished log slats are glued and pressed. -10 is assembled into a finished log (3).

Method according to Claim 1, characterized in that an adhesive extrusion space (6) is machined on the mating surfaces (4,5) of the log lamellae (1, 2) to be joined together, in which the adhesive 15 exuding during compression remains substantially invisible.

Method according to Claim 2, characterized in that the adhesive extrusion space (6) is formed by aligned grooves (7, 8) running at the edges of the two abutment surfaces (4.5).

Method according to Claim 2, characterized in that the adhesive extrusion space (6) is formed by a groove (9) running at the edge of one of the abutment surfaces (5).

Method according to Claim 2, characterized in that the shape of the adhesive extrusion space (6). a concealed groove (10) running in the abutment surface or abutments at a distance from their edges.

Method according to one of Claims 1 to 5, characterized in that the glulam log 30 is made of two log lamellas to be glued together side by side.

Method according to one of Claims 1 to 5, characterized in that the glulam log is made from at least three log lamellas which are glued together side by side.

Method according to one of Claims 1 to 5, characterized in that the glulam log 6 94504 is made of two or more superimposed log lamellas.

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Claims (8)

94504 7 1. A method for making laminated logs, in which process log lamellae (1, 2) in it are assembled into a uniform log (3), characterized in that - the log lamellae (1, 2) are separately said and planed tili sinä final measured and - the finished machined logs are glued and pressed together into a finished log (3). 2. A method according to claim 1, characterized in that in the counter surfaces (4, 5) of the stock lamellae (1, 2) to be joined together, an adhesive-bearing space (6) is prepared, whereby the glue which is superimposed on the compression remains substantially without to be seen. 3. A method according to claim 2, characterized in that the glue-bearing space (6) consists of the edges of the two counter-surfaces (4, 5), which are opposite to one another (7, 8). 20 4. A method according to claim 2, characterized in that the glue-bearing compartment (6) consists of a cutting edge (9) in one of the edges of the counter surfaces (5). 5. A method according to claim 2, characterized in that the glue-bearing space (6): consists of a cutting edge (10) in the counter surface or in the counter surfaces at a distance from their edges. 6. A method according to any of claims 1 to 5, characterized in that the glue logstock 30 is made of two, mutually stackable log laminates. Method according to any one of claims 1 to 5, characterized in that the glue log is made of at least three adjoining log laminates. Method according to any of claims 1-5, characterized in that the glue logstock 94504 8 is made of two or more logs which can be manufactured on each other. »6 94504 Fig 1 6« · 6 ^ y / r ^ J TO π] Fl'9 2 Fig 3