Method for manufacture of flitch girders from metal core and two wood liners and industrial module for its realisation

FIELD: construction.

SUBSTANCE: invention is related to construction, in particular, to manufacture of flitch girders. Method consists in adhesion of adjacent surfaces of metal core and wooden liners, drilling of through holes in wooden liners and metal core, insertion of tubular dowels in holes and their rolling. Through holes in metal core and in wooden liners are drilled simultaneously with different drills intended for metal and wood cutting with rotational speed different for metal and wood. Metal core and liners installed on above the other are placed and fixed on shifted tacking, being positioned relative to each other. Tacking is shifted during drilling operation by step equal to distance between neighbouring holes along girder length, after drilling liner placed on top is removed, surface of lower liner is treated with adhesive composition, core is shifted to lower liner, surface of core is treated with adhesive composition, the second liner is moved to core, previously assembled girder is turned by 90°, and metal core and liners are fixed with tubular dowels against mutual displacement by means of tubular dowels rolling.

EFFECT: increased efficiency of flitch girders manufacture.

2 cl, 25 dwg

 

The invention relates to the construction, in particular to the manufacture metallorganic beams.

A known method of manufacturing metallorganic beams, which consists in bonding of adjacent surfaces of the metal core and the wooden plates, subsequent drilling in wood plates and the metal core through-hole, is inserted into the holes of the tubular dowels and expansion [see the patent for useful model No. 34577 "Metallogeny construction element, E04C 3/00; 3/12; 3/292 publ. 10.12.2003,].

This method has low productivity because the Assembly is performed manually, in addition, when drilling holes in glued the metal core and the wooden plates beam used for drilling metal and wood are the same drills that are not optimal from the point of view of power consumption and durability drills. The use of separate cutting and drills requires drilling before bonding and the need to achieve exactly match the holes additional markup, i.e. increases the complexity of the manufacturing process of the products, and consequently increase the cost of production derivatices beams (DMB).

The objective of the proposed technical solution is the increase of produce is a major manufacturing DMB and reduce their costs by reducing energy consumption and complexity of the process.

This technical result is achieved in that in the method of manufacturing metallorganic beams from the metal core and two wooden plates, which consists in bonding of adjacent surfaces and metal core and the wooden plates, drilled in a wooden plates and the metal core through-hole, is inserted into the holes of the tubular dowels and expansion, there are differences, namely through holes in the metal core and the wooden plates are drilled at the same time various drills designed for cutting metal and wood (with optimal cutting conditions) with various metal and wood speeds, while the metal core and installed each other plates are placed and fixed on the movable snap-in positioning them relative to each other, the snap move during drilling operation at a step equal to the distance between adjacent along the length of the beam holes after drilling, facing, have the top removed, the surface of the bottom plates treated with the adhesive composition, move to the bottom plate of the core, process the surface of the core adhesive composition, move the second armature core, turn the pre-assembled beam by 90°, and fix pipes is atime pegs metal core and sheath from mutual displacement by expanding tubular dowels.

Figure 1 shows metallogenically beam Assembly.

A method of manufacturing metallorganic beams from the metal core and two wooden plates is as follows.

(See figure 1) metal core 1, and wooden plates 2 and 3 are placed on the snap, with the plates 2 and 3 are placed on top of each other. Core 1 and sheath 2 and 3 are positioned relative to each other and fixed in this position on the tool. Snap parts move to the drilling operation. Drilling metal core 1 and the plates 2 and 3 for metal and wood simultaneously produce various drills with different speeds optimal for drilling metal and wood. After drilling the first hole snap with fixed parts move a step equal to the distance between adjacent along the length of the beam holes, after which the drilling operation is repeated. After drilling all the necessary holes on one of the plates (top) 2 removed from the tooling surface of the sheath 3 (bottom) treated with the adhesive composition, the core 1 is moved on the plate 3, is treated with the surface of the adhesive composition and return the plate 2 on the snap, putting it on the metal core 1.

Technological pin with the lead-in taper sostarivajut hole in the provisional what about the collected beam to match all of the holes in the parts and placed in the holes of the metallic tubular pins 4, wearing them with washers 5. After that, the collected beam is turned 90° and fixed beam in the assembled position, ruzveltova tubular pins 4. Before expanding a tubular dowel produce a scraping hole washer 5 tubular dowels.

For implementing the method proposed production line, consisting of equipment for drilling holes in the metal core and the facings and to assemble them into a product - metalloperevalka beam. Used in drilling operation, the snap-in is used in subsequent operations, facilitating the process of Assembly of a beam.

Known multi-spindle drilling machine, containing the moving device and the fixing parts [see A.S. USSR №1187928, WV 39/16, publ. 30.10.1985,].

This machine is unsuitable for handling long items with a large number of drilled holes, so as not contains the device transport details.

Known drilling-grooving machine [see RF Patent №2029669, VS 3/06, B27F 4/00, publ. 27.02.1995,], in which the execution of the hole in the long products are provided with a drill head mounted movably, and movement of the carriage and fixed thereto details. The disadvantages of this machine is the low accuracy of holes.

Closest to the proposed technical the definition of the solution is the production module [see the application for the invention of the Russian Federation No. 2005103590, B23Q 39/94 "Production module with carrier for the workpiece", publ. 10.02.2009,] containing machining module with two or more tool spindles and table-based, equipped with a mechanism for navigating the carriage, the inlet and outlet of the conveyor to the machine module device, snap-in, equipped with a locking device for securing two or more parts, a carriage mounted on the table base, the carrier and provided with snap-locking device for securing the snap on the carriage, the tilter of the workpiece, the protection device chip.

This production module has high performance, but does not allow simultaneous processing of semi-finished products made of different materials with a large number of holes with the optimal processing conditions for the manufacture of the product.

The task and the technical result of the proposed technical solution is the creation of a specialized high-performance hardware for Assembly IDB, with high efficiency and accuracy.

This technical result is achieved in that in the production module, containing multi-spindle machining module with protection device chip, inlet and outlet to the machine is in the transport module of the device, the carriage bearing snap parts and provided with a locking mechanism snap-on slide, snap, equipped with a locking mechanism on it a few details, the table-based multi-spindle machining module, equipped with a mechanism for moving the carriage in the treatment area of the machining unit, tilter, there are differences, namely the caliper machining spindle module is equipped with a drill for drilling in wood and metal, all of the spindles are located in a single quill, and each spindle is equipped with independent drive, and production module further comprises one or more lift, one or more manipulator, Assembly jig, the mechanism for applying the adhesive composition, mechanisms for expanding and counterbore, mounted on the carriage Assembly, the snap-in has two sites located at different heights relative to the base equipment and the supporting base at the end for positioning located on the grounds of metallogenica and wooden plates relative to each other, as the locking mechanism parts on the tool used, the wedge locks stops as the mechanism for moving the workpiece in the machining area of the machine module uses the mechanism of step-by-step feed, and the tilting unit is installed on the Assembly bench.

Figure 2 shows a BL is a K-scheme of the production module.

Figure 3 shows a view As in figure 2 (snap-in).

Figure 4 shows a view B in figure 2 (on machine module in the form of multi-spindle drilling machine).

Figure 5 shows the view In figure 2 (table-based).

Figure 6 shows a view of G in figure 2 (on the locking mechanism snap-on slide).

Figure 7 shows the view On figure 2 (on the lift).

On Fig shows the form in figure 2 (on the arm).

Figure 9 shows a section f-F in figure 2 (a slipway with installed on it tilter).

Figure 10 shows the view And figure 2 (on the mechanism of applying the adhesive composition).

Figure 11 shows the view To figure 2 (carriage Assembly).

On Fig shows a section R-R figure 3.

On Fig shows the P figure 3.

Fig 14 shows the view W figure 6 (a locking mechanism mounted on the carriage).

On Fig shows the view U on Fig (the side view of the manipulator).

On Fig shows the view C figure 5 (side view on the table-base).

On Fig shows the view C figure 4 (side view on multi-spindle drilling machine).

On Fig shows a section d-d in figure 4 (passing through the caliper).

On Fig shows a section f-f on Fig (passing on the instrument).

On Fig shows the view e figure 9 (on the bench).

On Fig depicts a remote section I Fig (rack mount tilter).

On Fig depicts a cross-section of Yu-Yu Fig (illustrated is yousee fixing beams on the stocks).

On Fig shows the view A1 figure 11 (carriage Assembly).

On Fig shows a view of B1 on Fig (on the device for moving the carriage Assembly along the slipway).

On Fig shows a section B1-B1 figure 11 (rolling device).

Production module (see figure 2) includes machining module in the form of multi-spindle drilling machine 6, the table base 7, the inlet and outlet to the machine module of the conveyor device in the form of the inlet 8 and outlet of the conveyor 9, the snap 10 mounted on it with parts 1, 2, 3. Snap 10 is located on a movable carriage 11 with rigid fixation. Part of the process line includes also the lifts 12, arm 13, the Assembly jig 14 with tilter 15, the mechanism for applying adhesive composition 16, the carriage Assembly 17 for counterbore and expanding tubular dowels.

Snap 10 (see figure 3, 12, 13) is a frame design. Snap 10 has two surfaces 18 and 19, located at different heights relative to the base frame. Snap 10 is equipped with supports vertical and horizontal preload 20 with wedge locks 21 for fixing the disposable on the snap-in parts. Snap 10 has supporting legs 22, which are attached to the frame structure. At one of its ends snap 10 has a treated surface 23, lucadou the base for disposable snap-in 10 parts of 1, 2, 3.

The composition of the multi-spindle drilling machine 6 (see figure 4, 17, 18, 19) includes a vertical movement device 24 multi-spindle support plate 25 with two types of spindles 26, 27, which are mounted in a single quill 28 and automatic control system (not shown)that controls the drive mechanism for vertical movement 24 of the support plate 25 and electropneumatically of pneumatic devices step-by-step submission 29 table base 7, and the protection device chip in the form of a casing 30 connected to the collector 31 of the flexible hose 32 for collecting wood dust. Each spindle 26, 27 is equipped with independent drive 33. The spindles are equipped with collet chucks 34 with drills 35, 36, also of two types. For wooden parts to the drill is fixed to the cylinder counterbore 37 defined therein knives 38. The machine is equipped with a changeable set of calipers to handle all sizes of parts collected beams.

Table-base 7 (see figure 5, 16) drill rods 6 with step-by-step submission 29 of the carriage 11 mounted on it with a snap-10 in the area of the holes and the securing mechanism 39 of the carriage 11 during drilling.

Table-base 7 consists of the frame 40, the pneumatic cylinder 41, 42 flat and V-43, a prism 44 and the triangular guide 45 guides the carriage 10, the guide rollers 46 and rod 47, subcateg the wheels 48, roller holder 49, the roller 50.

Mechanism step-by-step submission 29 table base 7 is made in the form of a crank-rocker mechanism is located on the machine frame 40 and connected to the pneumatic cylinder 41. Mechanism step-by-step submission 29 consists of a toothed rack 47, the gears 48, the slider 51, the hinge-mounted on the gear wheel 48 of the roller cage 49.

The carriage 11 is located on the table base 7 machine module 6 and provided with a locking mechanism (not labeled) therein snap 10 (see 6, 14), whose design is similar to the design of the locking mechanism 39 of the carriage 11 on the table is under 7 and consists of a frame (not labeled), excentrico mechanism 52, the clamping lever 53, the transmitting levers 54, position sensors 55 and the cylinder 56.

The supply roller 8 (see figure 4) installed before drilling machine 6 and the outlet 9 after drilling machine 6 and constitutes a bearing welded frame with rollers 57 and 58. The roller conveyors 8 and 9 are intended to move them snap 10 for details.

To the supporting frame 57 of the discharge roller 9 (see figure 2, 7) its counter 59 is attached one or more lifts 12, designed for lifting with snap 10 wooden plates 2, 3. In addition to the rack 59, the lift 12 includes an eccentric 60 and a screw 61 mechanisms. The Cam mechanism 60 consists of a guide 62, Dukhobor 63 and Cam 64. The simultaneous movement of all of the lifts 12 is provided propeller driven by a gear motor (not shown). For lifting long items number of lifts may be increased.

The arm 13 (see Fig, 15) consists of a rack 65 secured on the base Assembly building 14, the carriage 66 mounted on the rack 65, arrow 67 and bayonet, 68, wire 69 and the drum 70. To move the carriage 67 is a vertical movement mechanism 71, provided with a drive (not shown).

The arm 13 (see figure 2) and the lift 12 is connected to the control unit 72.

Assembling the frame 14 (see figures 9, 20, 21, 22) is a frame design and is equipped with a tilting unit 15 or tilters, placed on racks 73 fixed to the frame 74 of the slipway 14 from the side nearest to the outlet roller conveyor 9.

The rack 73 is fixed in a vertical position by means of the stoppers 75, driven by a handle 76, and the horizontal by means of the handle 77. Synchronous operation of the tilters 15 is provided by a rod 78, rigidly connecting the tilters 15 between them. To fix collect metallocenophanes beams on the frame 74 slips 14 are adjustable stops 79.

To discharge the roller 9 through a guide 80 is mounted the mechanism for applying adhesive composition 16 (see figure 10), which consists of the autoclave 81, soedinennih the tube 82 with control rod 83, hanging over the workpiece, and connected by a rubber sleeve 84 through a gear with a high-pressure bladder 85, filled with nitrogen, and the bearing carriage 86.

The carriage Assembly 17, the supporting mechanisms for expanding and counterbore (see 11, 23, 24, 25), is designed to perform zekovic under the metal washer and expanding collet to collect metallorganic beams also installed on the Assembly jig 14.

Part of the carriage Assembly 17 (see Fig, 24, 25) includes a carriage 87, levers 88, retractable rollers 89, the locking mechanism 90, the frame counterbore 91 with two devices counterbore 92, rolling frame 93 with two rolling devices 94.

The carriage 87 is located on the guide frame 95 74 (see 11) Assembly building 14. For vertical adjustment of the position of the frame counterbore 91 and frame rolling 93 relative to collect metallocenophanes beams are screws 96 and the lever 88.

Frame counterbore 91 and the roller 93 is suspended from the trolley (see Fig, 24) 87 using the levers 88. To move the trolley 87 in the guide 95 is designed gate 97. On the frame counterbore 91 there are two counterbore device 92, each of which consists of a pneumatic cylinder 98 and 99 drill, rigidly attached to the piston of the pneumatic cylinder 98.

On the frame, rolling 93 (see Fig, 25) has two rolling the disorder 94, each of which consists of a pneumatic cylinder 98 and placed in the bearing housing 100 of the pneumatic cylinder 98 Electromechanical device 101 connected via two coupling halves 102 with a gear motor 103, and is provided with a spring-loaded stop 104.

Production module works in the following way. On the supply roller 8 install the snap 10.

At two sites 18 and 19 snap 10 stack : metal core 1 - on pad 18 that is located at a higher elevation, and stacked on top of each wooden plates 2 and 3 - space 19 located at a lower altitude. Supports vertical and horizontal preload 20 with wedge locks 21 parts fixed on the tool 10. The presence of metal machined surface 23 at the end of the snap 10 that performs the function of a reference database, allows you to achieve parallelism of the fastening parts on the tool 10, which is important for accuracy of coincidence drilled in the details of the holes during operation of the Assembly. Move located on the carriage 11 snap-in manually in the capture zone of the locking mechanism 39, and fix the snap 10 as follows.

Snap 10 each supporting foot 22 rests on angle stop (not labeled) of the Cam mechanism 52 and top to press down the pressure lever 53, the force which is transmitted from the pneumatic cylinder (not labeled) for transmitting R the fungus 54.

Mechanism step-by-step submission 29 moves the carriage 11 with a fixed snap 10 step in the treatment area of the drilling machine table 6-base 7, and then actuates the locking mechanism 39, mounted on the frame 40 of the table-base 7, which captures the snap 10 with the carriage 11 in the treatment area. Step-by-step movement of the carriage 11 is as follows. Pneumatic cylinder 41 moves on the guide rollers 46 of the rack 47, which cooperates with the toothed wheel 48 and rotates it 180°, and the slider 51, a hinge mounted on the toothed wheel 48, communicates with a focus (not labeled) of the carriage 10 and moves it across the table 7 to the desired step.

The locking mechanism 39, mounted on the table is under 7, when the drilling works like rolling locking mechanism 39, mounted on the carriage 11, but when the carriage 11 is fixed to the stationary table-base 7 in the treatment area.

After fixing the carriage 11 with snap 10 parts start drilling holes in detail. Include automatic control system and drilling machine 6, including the vertical movement mechanism 24, begins at the same time to drill holes in the metal core 1 and in the wooden plates 2, 3 in the amount equal to the total number of spindles 26, 27 in the support plate 24 of the machine 6, when this number is the number of calipers with drills 35 for drilling wood is equal to the number of calipers with drills 36 for drilling metal. Vertical movement of the carriage 24 is provided by a ball screw two screw and nut (not shown). The screw is driven into rotation by an electric motor (not shown)connected to the screw by means of a flexible coupling (not shown).

The spindles 26, 27 of the support plate 24 is installed in a single quill 28 moved by the actuator via a carriage (not labeled) on the rack.

This ensures the simultaneous lowering of the drill 35, 36. Drill 35 wood and drill bits for metal 36 are rotated personal motor (not shown) through a pulley (not shown) and by means of straps (not shown).

After processing the first hole mechanism step-by-step submission 29 moves the carriage 11 with snap 10 for the processing of subsequent holes.

After the drilling operation details for the entire length of the locking mechanism is unlocked and the mechanism of step-by-step submission 29 moves the carriage 11 in the reverse direction to its original position to laying on her next snap 10 parts, ensuring the continuity of the process, and the support plate 24 is raised to its original position, the machine is 6 stops. The operator respicere parts 1, 2, 3 on the tool 10 and snap rolls out of 10 on the output conveyor 9, where there are further operations on the Assembly.

While on a discharge conveyor 9 is an Assembly, other accessories parts for supplying roller 8 is moved on the drilling machine 6 and the drilling cycle is repeated.

Snap 10 drilled with the details supplied on the discharge conveyor 9, where the lifts 12 move the upper plate 2, by clamping her Cam mechanism 60 of the lift 12 and lifting it with a screw mechanism 6. Then rod distribution 83 with the holes of the mechanism for applying adhesive 16 is applied to the site of application of the adhesive composition on the lower plate, and due to the excess pressure in the autoclave 81 adhesive composition is extruded into the holes in the distribution rod 83 and the workpiece. Move arm 13 of the metallic core 1 on the treated plate 2, summing bayonet arrows 68 67 under the metal core 1. The vertical movement mechanism 71 raises the carriage 66 arrow 67 to the desired height, after which, by rotation of the drum 70, the movement of the bayonet arrows 68 67 under the metal core 1, then the arrow 67 of the arm 13 being led away in the furthest position from the treatment area.

After lowering the metal core 1 on the bottom plate produces a processing mechanism for applying adhesive composition an adhesive composition, then lowered raised by the lift 12, the second upper lining on the metal core 1.

Technological pin (not shown) with the lead-in taper sostarivajut hole in collected metallogenia the Noah beam, and manually hammered into the holes of the metallic tubular pins 4 worn on their washers 5, after which the beam manipulator 13 is transferred to the tilters 15 building 14. The tilter 15 beam is rotated 90° and down its narrow side on rollers (not labeled) of the building 14. Beam clamp stops located on the frame 14, and through the carriage Assembly 17 to produce a counterbore for installation of metal plates and metal beading sleeves.

The carriage Assembly operates as follows.

After fixing metallocenophanes beams on the Assembly jig 14 regulate the position of the frame counterbore 91 and frame rolling 93 relative to the slips 14 in the longitudinal direction. Vertical adjustment screws 96. Fine adjustment is performed by moving the levers 88 through the rotation axis, then the frame counterbore 91 suspended on a trolley 87 by means of two levers 88, able to move in the transverse direction, is led to the place of treatment under the counterbore by moving the carriage 87 in the guide 95 using the gate 97, and fix the position of the truck 87 relatively metallocenophanes beams. Fixation occurs automatically when the combination of the screw locking mechanism 90 with a hole metallocenophanes beams. Knives drill counterbore 99 device 2, driven by pneumatic cylinder 98, the handle holes.

1. A method of manufacturing metallorganic beams from the metal core and two wooden plates, which consists in bonding of adjacent surfaces of the metal core and the wooden plates, drilled in a wooden plates and the metal core through-hole, is inserted into the holes of the tubular dowels and expansion, characterized in that the through holes in the metal core and the wooden plates are drilled at the same time various drills designed for cutting metal and wood for wood and metal speeds, while the metal core and installed at each other plates are placed and fixed on the movable snap-in positioning them relative to each other, snap move during drilling operation at a step equal to the distance between adjacent along the length of the beam holes after drilling, facing, have the top removed, the surface of the bottom plates treated with the adhesive composition, move to the bottom plate of the core, process the surface of the core adhesive composition, move the second armature core, turn the pre-assembled beam by 90° and fixed tubular pins use the second core and the sheath from the mutual offset by expanding tubular dowels.

2. Production module containing multi-spindle machining module with protection device chip, inlet and outlet to the machine module of the transporting device, the carriage, the carrier snap parts and provided with a locking mechanism snap-on slide, snap, equipped with a locking mechanism on it a few details, the table-based multi-spindle machining module, equipped with a mechanism for moving the carriage in the treatment area of the machining unit, tilter, characterized in that the caliper machining spindle module is equipped with a drill for drilling in wood and metal, all of the spindles are located in a single quill, and each spindle is equipped with independent drive, and production the module further comprises one or more lift, one or more manipulator, Assembly jig, the mechanism for applying adhesive composition, mechanisms for expanding and counterbore mounted on the carriage Assembly, the snap-in has two sites located at different heights relative to the base snap, and a base of support at the end for positioning located on the grounds of metallogenica and wooden plates relative to each other, as the locking mechanism parts on the tool used, the wedge locks stops as a mechanism p. the motion of the carriage in the treatment area of the machining module used mechanism step-by-step feed and tilter installed on the Assembly bench.



 

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3 cl, 1 dwg

FIELD: building, particularly to produce balk adapted to construct wooden houses and other buildings.

SUBSTANCE: balk comprises a pack of wooden planks glued one to another and longitudinal inserts arranged so that n hollow cavities are formed between parallel wooden planks of the pack, wherein n>2. Inner wooden planks have longitudinal support extensions and longitudinal mounting grooves formed on narrow sides thereof. Longitudinal inserts arranged between extreme and adjacent inner wooden planks in the pack are made as bars of rectangular cross-sections. Another longitudinal inserts arranged between inner wooden planks are made a bars with longitudinal support extensions or mounting grooves formed on outer sides of the inserts. Ratio of summary balk cavity area defined in balk cross-section to balk cross-sectional area Sn.cav./Sbalk is 0.20-0.35.

EFFECT: increased efficiency.

6 cl, 4 dwg

FIELD: building, particularly to produce building timber to erect building structure.

SUBSTANCE: method involves assembling timber board pack; applying glue between the boards of the pack; pressing the pack by applying stress not exceeding ones defining proportionality limit; securing boards of the pack one to another. The pack is assembled by serially installing mutually offset timber boards so that grooves and extensions are created on opposite ends of the pack. The pack is pressed in several stages beginning from the first two boards. The boards are fixed after termination of each pressing stage by installing pegs in planes transversal to board fiber direction and inclined to board planes.

EFFECT: increased quality and reliability of timber connection along with reduced labor inputs for timber production.

4 dwg

Trussing girder // 2276240

FIELD: building, particularly joists, girders, trusses or truss-like structures, namely trussing girders used to cover buildings containing aggressive medium, for instance fertilizer storehouses.

SUBSTANCE: girder comprises upper timber belt, timber post and flexible truss bar formed of synthetic belt, for instance of polypropylene or polyamide belt. The truss bar passes over upper belt ends and is connected with upper belt by clamp, formed, for instance, of fiberglass. Truss bar ends extending beyond the clamp have bends for clamps and fixers are inserted in loops created by truss bar ends. The bent truss bar ends may be welded or stitched together. The fiberglass clamp may be secured to upper belt by fiberglass coach screws.

EFFECT: increased corrosion stability.

2 cl, 3 dwg

Trussing girder // 2276241

FIELD: building, particularly joists, girders, trusses or truss-like structures, namely trussing girders used to cover buildings containing aggressive medium, for instance fertilizer storehouses.

SUBSTANCE: girder comprises upper timber belt, post and flexible truss bar passing over upper belt ends by end parts thereof. The flexible truss bar is pulled together with upper belt by clamps. The flexible truss bar is formed of synthetic band having folded ends inserted in horizontal saw-cuts, which have through orifices at ends thereof. Fixing members are inserted in through orifices at saw-cut ends and in loops formed by truss bar ends. Support units of upper belt and truss bar are pulled together by fiberglass clamp.

EFFECT: simplified structure and increased corrosion stability.

3 dwg

FIELD: building, particularly means to reinforce timber structures along with member connection on head block.

SUBSTANCE: reinforcement unit comprises compressed rod, belt and reinforcing side covering plates. The plates are made of angle bars and provided with transversal diaphragms. Side covering plates enclose belt section corners and pass through slots made in compressed rod.

EFFECT: increased load-bearing capacity, prevention of head block unit deformation and shearing.

3 dwg

FIELD: construction, particularly elongated building structures made of wood and used to compose enclosing and load-bearing walls and similar structures.

SUBSTANCE: timber balk comprises 2 parallel longitudinal plates spaced one from another and rigidly connected with each other by the third longitudinal plate along the full lengths of the first and the second plates. The third plate lies in plane transversal to the first and the second plate planes. The first and the second plates are connected with each other by transversal strips lying in planes transversal to that of the first and the second plates.

EFFECT: prevention of crack formation in balk surface, increased bending and torsion resistance, increased manufacturability and drying simplicity and reduced material consumption.

2 cl, 2 dwg

FIELD: building, particularly elongated timber building structures used as wall members.

SUBSTANCE: profiled balk has facing boards connected to side balk surfaces. The balk is formed by previous compressing facing boards by drying thereof or mechanical action application to the balk.

EFFECT: increased service quality, manufacturability and extended service life.

3 cl, 2 dwg

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