Classifications

• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06C—LADDERS
  • E06C7/00—Component parts, supporting parts, or accessories
  • E06C7/08—Special construction of longitudinal members, or rungs or other treads
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
  • B27D—WORKING VENEER OR PLYWOOD
  • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
  • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets

Definitions

• Elongated building element with lamellar structure Elongated building element with lamellar structure.
• the present invention relates to an elongated construction element made of wood and with a lamellar structure such as a beam, upright, cross member, or the like, usable for the production of formwork or other wooden structures, or for the execution of construction frameworks. and various works. It also targets the frameworks made using this element.
• the elongated pieces of wood used in construction such as beams, uprights, crosspieces and others, are generally made of solid wood and the perforations necessary for their assembly are most often carried out on construction sites, as required. It is known to produce pieces of wood with lamellar structures, for a frame (FR-A-485.010), but these pieces of wood which are composed of superimposed strips of wood assembled by nailing, bolting or gluing, are of little interest , because they offer no ease of connection with each other, nor any flexibility of use on construction sites. In addition, the holes required for their bolting assembly are carried out on site, empirically, at the desired locations, as required, so that they are practically not reusable. Under these conditions, because of their high cost, solid wood pieces are generally preferred to them.
• solid wood is not a perfectly stable material, elongated pieces of wood such as beams and the like made from this material have very low resistance to compression, both longitudinal and transverse. It is therefore excluded from being able to install, in the holes made in these pieces of solid wood, metal members or parts intended to withstand significant forces, such as, for example, members for assembling elements of structures subjected to significant tensile, compressive and other forces.
• these solid wood construction elements offer no flexibility of use on construction sites.
• the object of the present invention is in particular to remedy the abovementioned shortcomings of construction elements such as beams, uprights, crosspieces and the like, made of solid wood, with laminated structure, or in conventional plywood.
• this objective is achieved by means of an elongated construction element with a lamellar structure consisting of a plurality of thin plies or overlapping strips of wood glued or laminated, the fibers of which are all oriented in the length direction. of said element, this construction element being more particularly remarkable in that it is provided with a plurality of equidistant transverse holes traversing it right through in the direction of its thickness and distributed over its entire length, this element possibly, for example, be called upon to constitute a beam, an upright, a cross member or other piece of frame or various frame.
• the elongated building element according to the invention provides several advantages. For example :
• ⁇ ⁇ - It can be easily combined or assembled, in various positions, with one or more other similar elements; ⁇ ⁇ - it provides ease of assembly and disassembly favoring s' reuse, and a flexible use on construction sites.
• Figure 1 is a partial perspective view with partial cutaway, showing a beam executed according to the invention.
• FIG. 2 is a perspective view illustrating various uses of the construction element according to the invention, in an interesting application for the production of a wooden sheet.
• FIGS. 3 and 4 are partial views, in
• Q perspective illustrating two modes of connecting beams arranged in the same direction.
• FIG. 5 is a perspective view of a portion of a beam with a lamellar structure executed according to the invention.
• FIG. 6 is a front view showing the assembly of two beams joined end to end, according to the connection mode illustrated in Figure 3.
• This element 1 with a lamellar structure is remarkable by the fact that it consists of a plurality of folds or thin strips of wood 1a, 1b, 1c, 1d, ..., 1n, glued or laminated, the wood grain is oriented in the same direction. More precisely. The fibers of all the thin strips of wood or joined plies are oriented in the direction of the length L of the element. On the other hand, this element is provided with a plurality of transverse holes 3, regularly spaced. Crossing it right through, in the direction of its thickness E.
• the perforations or equidistant holes 3 advantageously have a cylindrical shape and they are distributed over the entire length L of the element 1.
• the building elements according to the invention may be performed with length, width and different thickness, being understood that, depending on their destination, they may advantageously be standardized to have an identical section and different lengths.
• all the elements intended for the same application are provided with holes or perforations 3 having the same diameter and a spacing or not 2 equal.
• the width l and the thickness E of the element advantageously have values provided as a function of the value of the pitch 2 or spacing of the perforations 3. More precisely, the width l and the thickness E of the element correspond , respectively, at half and sixth of the value of this step or spacing.
• the wood used for making the building element according to the invention can advantageously be a spruce from the northern regions.
• the plies or sheets of veneer are obtained, in a known manner, by peeling or slicing, and are glued or laminated using films or layers of phenolic resins known per se, which participate in the enrichment of the elements thus executed and improve Their performances.
• the element with a lamellar structure according to the invention lends itself to very varied uses and can withstand efforts significant, without risk of buckling, cracking or rupture.
• FIG. 2 Illustrated in Figures 2 to 4, some examples of uses of the building element according to the invention.
• this element is used as a vertical beam for stiffening a form.
• Figures 3 and 6 illustrate the assembly of two identical beams 1 abutted, by means of splices l 'arranged on either side of the end parts of said beams and assembled by means of bolts 5, passing through the holes that have said parts , these fishplates being constituted by small elements executed in accordance with the invention and comprising at least four holes 3.
• the spacing 2 "which separates the adjacent perforations 3 from the two beams 1 arranged end to end, is identical to the step 2 of the perforations 3 with which said beams are provided, owing to the fact that, as indicated above, the value of the spacing 2 'corresponds to half of step 2.
• Figure 4 shows another method of assembling two identical beams 1 oriented in parallel. According to this mode of connection, the beams are placed in contact by one of their terminal part, so that at least two of their perforations 3 are placed in alignment, the assembly being carried out by means of bolts 5 passing through said perforations aligned.
• the invention also relates to wooden frames of various constructions or works, produced using a plurality of elements executed in the manner indicated above and assembled by means of connecting members known per se, such as bolts 5 , bars 6 or 7, fittings 10 or others.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Manufacturing & Machinery (AREA)
• Wood Science & Technology (AREA)
• Forests & Forestry (AREA)
• Rod-Shaped Construction Members (AREA)
• Laminated Bodies (AREA)
• Panels For Use In Building Construction (AREA)
• Escalators And Moving Walkways (AREA)
• Toys (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=9318967

Family Applications (1)

Country Status (5)

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Family Cites Families (12)

• 1985
  • 1985-04-30 FR FR8506811A patent/FR2581109B1/fr not_active Expired
• 1986
  • 1986-04-30 EP EP86902840A patent/EP0220256B1/de not_active Expired - Lifetime
  • 1986-04-30 DE DE3689994T patent/DE3689994T2/de not_active Expired - Fee Related
  • 1986-04-30 AT AT86902840T patent/ATE109061T1/de not_active IP Right Cessation
  • 1986-04-30 WO PCT/FR1986/000149 patent/WO1986006315A1/fr not_active Ceased

Non-Patent Citations (1)

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