FI97488B - Fastener pair which allows sliding, for fastening roof trusses for timber constructions with a saddle roof - Google Patents

Description

97488

SLIP ANTI-SLIP BRACKET FOR ATTACHING ROOF CHAIRS IN A ROOFED LOG BUILDING

The invention relates to a pair of fasteners comprising a groove fastener with a curved groove at a predetermined angle to the plank to be fastened to the log and a plank-like slide part to be fastened to the plank or the like of the roof chair, which fasteners are arranged to allow only longitudinal movement of the plank. the slide 10 slides in the groove.

The invention relates in particular to the installation of a steep gable roof in connection with a log building. The water roof and the upper ceiling of the log building are installed on sloping girders, which here are simply referred to as planks. According to the prior art, the upper end of the plank is nailed to the uppermost transverse horizontal log or support beam, referred to herein as the cucumber log, and the lower end with straight sliding grooves in the direction of the plank.

20

Two methods of fastening the lower end are known, one of which is a pair of fastening irons with a straightest sliding groove according to Finnish patent 77503 and the other of the bracket type.

25 When a brace-type sliding bracket is used, its disadvantage is its uncertainty of operation, since its sliding surface is located considerably far from the mounting surface of the bracket and the log, whereby the sliding friction generates a moment which may bend the bracket and render it inoperative.

30

The object of the invention is to eliminate the problems associated with the above-mentioned sliding fasteners and to provide a practical, reliable and technically easy-to-install pair of fastening irons. In order to achieve the above effect 35, the invention is mainly characterized by the features set forth in claims 1 and 2.

In the following, the invention will be illustrated with reference to the accompanying figures, which show some embodiments of the invention and already known fastening methods.

* '1 97488 2

Figure 1 shows a general arrangement for the installation of rafters.

Figure 2 shows the attachment of a plank to a planed log, which means a planed log in a rectangular shape.

Figure 3 shows the attachment of the plank to a round log 5 formed from its upper surface.

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Figure 4 shows the attachment of the plank with a brace-type fastener to the log.

Figure 5 shows a mounting according to patent 77503.

Figure 6 shows a previously known brace type fastening.

Fig. 1 is a schematic diagram of the roof structure, which shows the need for a sliding bracket. Since the cork log 4 descends more than the wall log 3 for known reasons, the plank 2 15 has to slide relative to the wall log, this is possible thanks to the pair of fasteners 1.

When attaching the lower ends of the planks using the currently used brackets Fig. 5 and Fig. 6, which have straight sliding grooves 20, they must be installed perpendicular to the plank 2, so that they appear outside the wall the steeper the roof while blurring the appearance and make it difficult to install a cover board 5 to be placed between the planks 2, because space must be made for the fasteners.

These are not suitable for mounting on logs 3 whose upper surface differs from the normal round shape, such as a planed log (3) Fig. 2, in which the upper surface is straight and angled, or a round log 3 Fig. 3, Fig.4 and Fig.6, the upper surface of which is otherwise shaped to provide a better seal, in which case a suitable fastening surface disappears from the brackets 6 'at a certain roof angle, as in Fig. 6 the roof angle can no longer be steepened.

Fig. 2 shows a pair of fastening irons 1 with a curved fastening groove 8 according to the invention. Due to the curved design of the sliding groove 8 of the fastening 6, the fastening pair 1 is 3 97488 «.

could be installed in such a way that it does not interfere with the installation of the cover board 5 with any roof corner and log model.

Figures 3 and 4 show some embodiments of the invention. In Fig. 3, the sliding groove 8 of the fastening iron 6 has been replaced by a separate straight sliding groove 8, which is articulated to the fastening iron 6 and enables the operation according to the invention, as in Fig. 2. Fig. 4 shows an application when using a pair of bracket-type fastening irons 1, in which the installation 10 can be done thanks to a curved sliding groove 8.

Claims (2)

An attachment pair allowing sliding for attaching the roof trusses to a timber-roofed saddle building, which attachment pair 5 (1) comprises a locking bracket (6) to be fastened to the log (3), provided with a beak-shaped latch (8) in the plank (2). a direction which is openly sealed and located in the corner seen from the mounting surface of the log as well as a rectangular shaped fitting (7) which is suitable for the locking bracket (7) which forms a slide (9) and which is to be fastened in the plank of the roof chair (2) or equivalent. permitting movement in the direction of the board, which brackets (6, 7) shall be adapted to each other so as to allow only the longitudinal movement of the board (2) when the slide (9) moves in the lock (8), characterized in that the locking bracket ( 6) as the fastener the slide fastener pair in the log (3) is adapted so that in all log forms it is always mounted on the inside of the outer surface of the outer wall. 2. A pair of braces according to claim 1, characterized in that the sliding bracket (6) of the bracket (6) is beak-shaped or articulated so that at all roof angles 22 ° ... 48 ° allow the bracket (6) to be attached to the log (3) the fitting slide part (9) is attached to the board (2) so that together they form a fastening pair which allows sliding only in the direction of the board.