SU57789A1 - Butt joint of round wooden elements - Google Patents

Description

The present image1)

the type of connections of wood elements using metal inserts inserted into the parental saw cuts made by the cows of these elements.

The invention is intended to improve joints of this type and consists in the fact that the metal inserts are made in the form of two wedges interconnected by thin ends and inserted into the wedge-shaped cuts of wooden elements, which taper to their first ends.

Inserts can have a wedge-shaped section, narrowing to the middle of the connected elements.

Metal inserts; breathes can also be made in the form of sheets or plates folded and folded in half, inserted into clips of wooden elements and fixed in them with wedges hammered between the halves of sheets or plates. Sheet folded in half or plates can be attached to a central metal rod,. into the longitudinal central hole made at the ends of the elements to be joined.

In FIG. Figure 1 depicts one of the variants of the proposed compound — side view; FIG. 2 is a cross-section of such a connection; FIG. 3- metal inserts in the form of bent sheets connected by a central rod; FIG. 4 - КЛИ1Нь for these liners; FIG. 5 second connection option; FIG. - 6 cross section of it; FIG. 7 is a metal insert for connection according to the second embodiment, made in the form of a reinforced sheet; FIG. 8 is a wedge for this insert.

The connection of wood elements in the first embodiment (Fig. 1-4) is carried out as follows. The joined elements are sawn crosswise in diameter to a certain depth from the ends. Holes are drilled to the same depth in the center of sections; a metal core is inserted into the star-shaped kerf formed (Fig. 3). The core consists of a central rod / to which the radial inserts are welded 2. Their number corresponds to the number of cuts. Each liner is folded in half and folded.

cTBopKaMiH Plate. The insert is inserted tightly and the entire depth of the PROPILES into the ends of that AND; Others After the insert is inserted and the logs are mutually pressed until it is completely in contact with it, it is in the slot; the wings with a force of wedge 3 (fig. 4) in the form of narrow steel strips extending to one end. After driving in the wedges, the joint is crimped with several tightening rings 4.

When the joint is working on stretching, the liners work like a wedge, and if it is impossible to push the cut apart into a force resisting and crimping their rings, the joint can withstand considerable forces. To increase the resistance, the lateral surface of the liners may be made roughened.

In order to preserve the compound from rotting, due to the penetration of water into the gaps, it is painted over with an oil paint.

The connection according to the described embodiment can work in compression and in tension, and can also resist bending.

With less significant forces and in the absence of bending moment, the compound according to the second variant can be grinded (Fig. 5-8).

This option differs from the previous one in the use of individual liners, not. interconnected central rod. Inserts are also made in the form of plates bent in andenalized manner (Fig. 7), which are wedged in double cut

wedges (fig. 8) and fastened with tightened rings 4.

The subject matter of the invention.

Claims (4)

1. Joint connection of round-shaped wooden elements, c. in which metal inserts are inserted, inserted into longitudinal cuts, made at the ends of these elements, characterized in that metal inserts are filled in the form of two wedges interconnected by THIN ends and inserted into the wedge-shaped cuts of wooden elements that taper to their ends. 2. The form of the butt joint according to claim 1, characterized in that the metal inserts as well as the cuts in the wooden elements have a wedge-shaped cross-section, tapering towards the middle of the elements. 3. Video change of the butt joint according to claims. 1 and 2, characterized in that metal liners are made of IB in the form of bent and folded in half metal sheets or plates, inserted into wedge-shaped cuts of the elements and fixed in them with wedges, hammered between the half of the sheets or plates. 4. The form of the device according to and; 3, characterized in that the sheets or plates bent and folded in half are attached to the central metal bar which fits into the longitudinal central hole made at the ends of the wooden elements. to the author's certificate of A. X No. 57789 EvFaritsky ShigZ ShigD Shig5 2 1 FIG FIG. Xi 7Fig. 6 Fig