RU2460679C1 - Flat raft section - Google Patents

Abstract

FIELD: woodworking industry.

SUBSTANCE: flat raft section includes rows (1) of round wood products, which are laid in tiers perpendicular to each other. All rows except the upper one are located in frames (2). Frames are made of wood products installed with shear at corners. Upper (5) and lower (6) braces are fixed on lower frame. Parts of splices (7) are connected to lower braces. Both splices are made of two parts with loops (8) on the ends. Loops of splices are connected to each other with a detachable lock (9). Wood products forming the frame are connected are connected by means of non-equal metal angles (3). Long sides of angles are attached by means of screws to inner sides of wood products. Short sides of angles are attached to outer sides of wood products.

EFFECT: improving rigidity of frames, simplifying the design of attachment of wood products in frames and reducing labour costs for manufacture of frames.

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Description

The invention relates to an alloy of wood, namely to raft units.

A flat raft unit is known, containing rows of round timber laid in tiers perpendicular to each other. All rows, except the upper one, are located in frames made of timber, installed with a shift in the corners and connected by flexible ties, threaded into horizontally located holes. Flexible connections are made in the form of chain lashes equipped with a restrictive washer at one end and a retainer rod with a head and a hole for the cotter pin at the other end. The upper and lower bindings are fixed on the lower frame. The berths are made of two parts connected to the lower harnesses, and are equipped with loops located at the ends, which are interconnected by a snap lock (see US Pat. RF No. 2166467, metro class B65B 35/02, 27/10, B65G 69/20 , 05/10/2001).

The disadvantages of this flat raft unit are: the complexity of the construction of timber fastening within the framework, insufficient rigidity of the frames and high labor costs for their manufacture.

The problem to which the invention is directed is to simplify the design of timber fastening within the framework, increase the rigidity of the frames and reduce labor costs for their manufacture.

To solve this problem, in a flat raft unit containing rows of round timber, laid in belts perpendicular to each other and located, except for the upper row, in frames made of timber installed with a shift in the corners, the upper and lower bindings fixed on the lower frame, counters made of two parts connected to the lower harnesses and provided with loops located at the ends, which are interconnected by a releasable lock, according to the invention, the timber forming a frame is not connected Avnobeknymi metal corners attached by screws with long sides to the inner sides of the timber forming the frame, and short sides to the outer sides of the timber forming the frame.

It is proposed to carry out timber fastening within the framework of unequal metal corners and screws, such fastening is simpler than fastening in the form of chain lashes threaded through holes and having a restrictive washer at one end and a retainer rod with a head and a hole for the cotter pin at the other, and therefore, the timber fastening structure within is simplified. In the proposed frame design there are no flexible connections, which means that the rigidity of the frame increases. The fastening of timber in the framework of unequal metal corners and screws eliminates drilling through holes in the timber and threading chain lashes in them, and therefore, the complexity of manufacturing frames is reduced.

Figure 1 shows a flat raft unit, front view; figure 2 is the same, a top view; figure 3 - node a in figure 2; figure 4 is a metal corner, front view; in Fig.5 is a section bB in Fig.4.

A flat raft unit contains rows of 1 round timber laid in tiers perpendicular to each other. All rows, except the top, are located within 2, made of timber, connected by unequal metal corners 3, attached by screws 4 with a long side to the inside of the timber, forming a frame 2, and a short side to the outside of the timber, forming a frame 2. On the bottom frame 2 secured the upper 5 and lower 6 strapping. Both counts are made of two parts 7, connected to the lower harnesses 6 and provided with loops located at the ends 8. The loops of the counters are interconnected by a releasable lock 9.

The production of a flat raft unit begins with the installation of unequal metal corners 3 with long sides on the timber of frame 2. Corner 3 is fastened with screws 4 to one end of the timber, so that the short side of corner 3 is half the diameter from the end of the timber and is directed towards the neighboring timber frame 2. The bottom frame 2 is assembled, for which timber (four pieces) with corners 3 pre-attached to them with long sides are stacked so that their ends, not provided with corners, abut with ends on long sides, and on the outside, on short sides of corners 3 installed on timber adjacent to frame 2. Screws 4 are screwed into the openings of the short sides of the corners 3. Then the upper 5 and lower 6 strapping are fixed, and the lower row of timber 1 is loaded into the frame. Parts of the berths 7 will be connected to the lower strapping 6.

Similarly, all the other rows of a flat raft unit located within 2 are assembled, each subsequent row is laid on the previous one perpendicular to it. Timber is laid in the upper row 1 and the upper harnesses 5 are connected. Parts of the berths 7 are brought to the surface of the raft unit from the outside of the upper harnesses 5 and are interconnected behind the loop 8 by the lock 9.

Dismantling of a raft unit is carried out after it is discharged ashore in the following sequence. The lock 9 opens, and the loops 8 of the loops 7 are released. The upper bindings 5 are released and the timber of the upper row 1 is removed. The screws 4 (four pieces) are unscrewed from the holes of the short sides of the unequal metal corners 3 connecting the timber of the upper frame 2, and the upper frame 2 is disassembled then the timber of row 1 located in the upper frame 2 is removed.

Similarly, the remaining rows 1, enclosed in frame 2, are disassembled. After dismantling the lower frame 2, the upper 5 and lower 6 strapping are removed from the timber that forms it. Timber, forming a frame 2, are freed from unequal metal corners 3, for which screws 4 are unscrewed from the holes of the long sides of the corners 3.

The unequal metal corners 3 and screws 4 are returned to the raft places for use in the manufacture of raft units.

The use of a flat raft unit of the proposed design will increase the efficiency of the raft alloy of wood along rivers with shallow depths.

Claims (1)

A flat raft unit containing rows of round timber, laid in belts perpendicular to each other and located, except for the upper row, in frames made of timber installed with a shift in the corners, upper and lower bindings fixed to the lower frame, two sides made connected to the lower harnesses and provided with loops located at the ends, which are interconnected by a removable lock, characterized in that the timber forming the frame is connected by an unequal metal and corners fastened by screws with long sides to the inner sides of the timber forming the frame, and by short sides to the outer sides of the timber forming the frame.

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