LU82426A1 - PERSONAL PROTECTION FOR FOREST TREES - Google Patents

Description

OC 51.139

Patent application for ..... May 7, 19 8o ...........

Designation of the Inventor (1) The undersigned ..... Mr Jacquog .... çte ,, lfluyser, ..... 35.,. ... bld ...... Royal, at ....................

............................................ LUXEMBOURG ..... (Luxembourg] ............................................... ................................................

acting as / dL · / JêfahédrÀ - as agent for the depositor - (2) _______ N., .. V, ..... BEKA.ERT ... S.,. A.,., .... Le. o ... Bekaar ± S ± râa.t ... l., .... à ... S55.0 .... ZIŒ.YEGEMj .... Belgigue (3) of the invention concerning: .......... ". Sjr.Q.tÄß.tJLQn ... iMlvldue.lle .... p.Qur„ ^ arbxeÄ ... f.Qre.s.tier.s "J. .........................................

designated as inventor (s): 1. Name and first names ... Willy .. ..LIBBRE.CHT ........................... .................................................. ......................................

Address ... W.il.9§nlaan ... l9.A ... to .. ^ .......................... ........................

2. Name and first names ... d.9.? .. §.Î .... LP.M9AERTS ......................... .................................................. .......................................

Address .... Î9.Ç.P.§.§.îî9.Î: Î.§.§t ... „?. / ..... I .... 8.51..o ... KOR ^ Belgium ....................

3. Surname and first names ............................................. .................................................. .................................................. ....................

Address ................................................. .................................................. .................................................. ........................................

He affirms the sincerity of the aforementioned indications and declares to assume full responsibility for them.

....... Luxembourg .............................. on ... 1.8 ... June ... .............................. 198..Q.

UAXiu A 68026 l ........... * - * - »**** ___ (*) Last name, first names, company, address.

ID. 51.139 Brief Description filed in support of a request for

PATENT

at

Luxembourg formed by: N.V. BEKAERT s.A.

for: "Individual protection for forest trees".

i i [

J PERSONAL PROTECTION FOR FORESTRY AE3RES

'The present invention relates to the individual protection of forest trees against damage caused by game such as -i-iabroutfcsemant, Ί & froture cru l'écécur-r - "Ct Af- Ccsfc / 77CJJ 7? Cjtf-C.Llt f ~ c € l J £ = c * ir! There is personal protection consisting of a lattice corset of welded or knotted wire.

The welded mesh is brought into the forest in panels cut to measure in advance. The transport of these panels is bulky and their folding and positioning around the trees requires a lot of manpower. The corsets are fixed on site by wooden stakes which have the same height as the trellis. On the other hand, "trellis has fully knotted threads, such as, for example, the hexagonal mesh trellis *. This type of corset must be supported

By stakes, preferably stakes of impregnated wood, over their entire height. The rigidity of this protection is not optimal and their installation requires considerable manpower.

The personal protection according to the invention provides a welded wire mesh corset ^ easily transportable ^, with Ί * quicker installation and which does not necessarily require 'i J a fixing on stakes of a significant height.

The invention contains a mode of operation for obtaining a> and <.

protective corset of metal wires, preferably-dffTT1 steel or iron, for trees, by bringing notches between 10 and 30 ^ of the wire section of a welded mesh on all the longitudinal wires and to the same transverse line before rolling up this trellis: - 2 - with a forced curvature and that these notches are repeated at regular intervals, corresponding to the circumference of the circle provided for the protective corset.

After this operation the roller can be transported to the place of use. By excessively deforming by bending the notched sections one can break the mesh and separate the circumference with a single protective corset, even by hand. This core is then placed around the tree and closed by the ends of the wire v which extend to the places where the wires had been cut.

»Using the monk two stakes of low height having at least one hook acting as a spring, the corset is anchored under tension on the ground.

The invention also relates to a roll of welded wire mesh prepared in the manner described and a protective corset for a tree obtained according to this operating mode.

The nature of the invention is illustrated by the following drawings: FIG. 1 shows part of a trellis according to the invention.

Figure 2 shows a protective corset in place.

Figure 3 shows the fixing details of the protective corset.

Figure 1 is a partial perspective view of a welded wire mesh B with rectangular meshes. The longitudinal wires will come in a horizontal position when the mesh is used as a protective corset. The transverse wires 2 are the U_x, / vertical wires.

Preferably the vertical wires are more rigid and for this purpose they have higher mechanical properties.

I | - 5 - '1; ί; ί if !!

In this way it is preferred to use drawn steel wires for the longitudinal wires while the transverse lines consist of wire drawn with high elastic limit or for example of non-alloy steel with 0.20 ^ carbon. I must nevertheless take into account the weldability between the two materials, v Other combinations are obvious to those skilled in the art.

The dimensions of the mesh depend on the game to be intercepted, but a minimum dimension of 5 cm eBt suitable. Preferably the meshes are rectangular from 5 to 10 cm. ,

All the longitudinal wires 2 show notches 3 which are biting on a transverse line 4 and parallel to the transverse threads. The location of this transverse line 4 is not very important but it is preferred to locate it near a transverse wire for example at 1 cm distance from this one. The cuts locally reduce the effective section of the longitudinal wires of 10 to 30 ^ so that it allows the regular winding of the welded mesh and that it causes at the same time the spontaneous rupture of all the longitudinal wires along the transverse line 4 after a pronounced and repeated folding of the mesh.

The cuts are made repeatedly along j * transverse lines at a constant distance suitable for the | the circumference of the cylinder which is to be formed as a protective corset. This distance amounts, for example, from 0.90 m to 1.80 m and the standard value is approximately 1.50 m. The height of the corset depends on the game you want to keep and it has, for example, a value of 1.20 m or 1.50 m.

1 The wire size is 2 to ^ m and depends on the use of the protection and the type of mesh provided. A standard value of about 3 nua is preferred.

* - 4 -

The welded mesh obtained, provided with a Bérie of notches is wound with a forced curvature, that is to say that the mesh has a certain plastic deformation of longitudinal wires which is equal or is greater than the deformation sought to form the protective corsets. The mesh roll is also more easily transportable to places of use, ^ Figure 2 shows a protective corset ^ put in place 'in the field. The corset is formed by a cylinder 5 which is closed along the transverse line 4 by the ends of the wires 6 which extend at the breaking points. It is important to ensure a well-kept closure to restore stability to the protective corset. The cylinder 5 thus formed is held in position by at least two stakes 7 for anchoring at low height. A number of 3 stakes is a minimum in the majority of cases to resist big game and bad weather in the forest.

It is necessary that the stakes are designed in such a way that they exert a downward tension in balance with the transverse wires 2 of semi-hard steel which work as a counter spring.

Thus the corset is a prestressed structure, which remains flexible, but it has sufficient rigidity for its function. The upper 8 and lower 9 flanges may have overhanging transverse threads to give an additional repellant effect.

Figure 3 is an illustration of some structural details ensuring better stability of the protective corset.

It is essential to ensure a valid closure of the trellis cylinder which prevents movement of the two ends.

The ends of the wire 10 which extend at the places of the notches can serve as a tie with the vertical wire 12 from the other end of the cylinder to form a knot 1 $ or 14 as a variant, also using the second end of wire 15 · , - 5 -! i ft i

Another important condition for stability concerns <the fixing means, in the form of stakes. With an appropriate choice of stakes, it is possible "to eliminate the tall stakes which are almost the height of the corset itself. The hook posts described

V

j1 above allow an anchoring of the stretched corset on the Bol. and these stakes have reduced dimensions, for example 45 cm in length, 3 because they allow to link only one of the three or four horizontal lower wires 16-du corset.

„The stake 17 for example consists of a 10 mm round piece of mild steel flattened by rolling to a thickness of 38 mm. The preformed curve 18 allows immediate fixing of the mesh I without further manipulation. The hook 19 is fixed to the end 20 of the hip 21 of the stake by a weld, so that the hook hardly represents a disturbance when the stake is driven into the ground, but that it returns obliquely or perpendicular to the hip when the stake is removed a few centimeters from the ground.

This reaction causes the desired spring reaction, especially when the hook 19 consists of carbon steel carbon.

* 4 | * The stake 22 is formed from a piece of rolled sheet metal I il | , 1.2 mm thick and received a curved profile. Leux parties laté | lines 2J of tip 24 are profiled to function as hook g when the stake is removed. The upper part carries lateral stripes 25 which allow the trellis to be fixed to the stake. This spike is suitable for hard pine soil where it must be hammered in. Preferably, the height of the stakes is limited less than 60 cm and even 45 cm.

j. "C n \ Oo {: {it-v 1 XI goes without saying that it is possible" to alter- the dimensions j and the shape of B stakes described according to the circumstances and needs. The stakes described achieve a high anchoring force j; γζ even in rocky ground.

! The examples given are only a functional and economic illustration of a protective corset. It is obvious that it is possible to change the dimensions or the materials indicated and to provide protection against corrosion. We can also foresee the

Claims (4)

1, Mode of operation for obtaining a protective corset of metal wires for trees, characterized in that notches of between 10 and 50 J® are brought in from the wires section of one. »Welded mesh on all the longitudinal wires and on the same transverse line before rolling up this mesh with a forced curvature and these notches are repeated at regular intervals corresponding to the circumference of the circle provided for the corset protection * " 2. Mode of operation according to claim 1, characterized in that the trellis is excessively deformed by folding the notched sections to break the trellis and to separate the circumference of a single protective corset and that the corset is placed around the tree and closed by the ends of the wire which extend to the places of the notches. 5. Method of operation according to claim 2, characterized in that · the protective corset is anchored under tension Bur the ground by at least two hook stakes. 4 · Welded wire mesh roll obtained by the operating mode of claim 1. 0 5 · Protective corset of a tree obtained according to the operating mode "* of one of claims 2 or 5 · ·