SU1459925A1 - Parquet strip - Google Patents

Abstract

The invention relates to woodworking and can be used in parquet production. The purpose of the invention is to reduce material consumption. The parquet plank is a solid wood component with a front I and two reverse sides, an oblique flange 3 and a flange 4 with an oblique lateral side. The flip side 2 of the bar is displaced in the vertical plane towards the front side I and in the horizontal plane in the direction of the ridge 4 beyond the zone bounded by the vertical plane passing through the upper face of the front side 1. 4 Il.

Description

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Phie.1

4 SL QD CO N5 SL

The invention relates to woodworking and can be used in parquet production.

The purpose of the invention is to reduce material consumption.

FIG. 1 shows a parquet plank, a general view; in fig. 2 is a fragment of the joint of the planks during floor assembly; in fig. 3 - slat connecting element - comb; in fig. 4 is a diagram of the decomposition of the force applied to the top of the ridge.

Parquet plank - detail of solid wood and mutually parallel milled front 1 and reverse 2 sides and profiled edges and ends. The profile of the connecting parts - oblique flange 3 and ridge 4 with an oblique side.

The parquet strips are assembled by combining a ridge with an oblique fold. The slats are secured to the base with adhesive mastics.

FIG. 2 shows the support base of one strip relative to the other and the direction of mixing of the slats due to the increase in wood. Shifting along the horizontal base, the proposed strips do not lose the joint flatness of the front surfaces.

cracks and, ultimately, the exit of the floor from the line.

Thus, the implementation of the upper sections of the folds and the ridges of the slats is horizonal. Weakness is a prerequisite for increasing floor durability.

The proposed profile is formed by displacing the reverse side of the parquet plank in the horizontal plane in the direction of the ridge beyond the zone 0 bounded by the vertical plane m-m passing through the upper face of the face of the plank. FIG. 3 reverse side offset is made by the value K.

It was experimentally established that the profiles with the ratio KSbi have the best indicators of strength. When there is a gradual weakening of the profile (to the level of strength of the known bar), and with a gradual deterioration in the retention of the strips due to the bevel of the lateral side of the ridge when assembling the floor on an uneven base.

Wood saving is achieved by shifting the back side towards the front side of the plank. In this case, the value of h (Fig. 3) decreases, which leads to a relative loss of strength of the ridge.

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FIG. Figure 4 shows a diagram of the decomposition of the load P, conditionally applied at a point of one bar to the inclined supporting base of the other bar (Ph is horizontal and PB is the vertical component of force P). Obviously, the power of Pr tends to push the slats. In this case, for the “central slats (slats in the center of the room), the total efforts S Pr can be mutually compensated. But the "extreme slats (the slats against the walls of the room) will tend to form gaps with" central ones. The offset of the slats leads to the destruction of adhesive mastics, the formation of

Claims (1)

Invention Formula A parquet plank comprising a blank with machined front and back sides and edges forming an oblique fold and a crest, characterized in that, in order to reduce material capacity, the upper sections of the fold and crest are horizontal, the reverse side of the plank is offset in the vertical plane towards the front in the horizontal plane, in the direction of the ridge beyond the zone bounded by the vertical plane passing through the upper face of the front side. Oporn 15az Phia.2 to B