专利摘要:
22ABSTRACT It is provided a oross~laminated wood facade element l thathas an upper end l2 and a lower end l3, an inner surface 3, anenter surface 2 and a longitudinal axis 28 in the directionfrom the upper end l2 to the lower end 13, said element lcomprising an inner layer 4 of timber elements 7 and at leastone intermediate layer 5 of timber elements 7 where the grainof the timber elements 7 of the inner layer 4 and grain of thetimber elements 7 of the at least one intermediate layer 5 areat least partially oriented in different directions, the façadeelement l further comprising an outer layer 6 comprising timberelements 7 in which the grain direction is oriented approxi~metely parallel to the longitudinal axis 28, charaoterized inthat the outer surface 2 of the façade element l has groovesll that are approximately parallel to the longitudinal axis 28. Artsíihvingstext, 3014-16-13 149939552
公开号:SE1451222A1
申请号:SE1451222
申请日:2014-10-13
公开日:2016-03-06
发明作者:Camilla Schlyter Gezelius
申请人:Schlyter Gezelius Arkitektkontor Ab;
IPC主号:
专利说明:

3G |._.1.
»FAcf-ios stgggemfr Field of the invention This invention relates to a façade element made of cross~lam- inated wood.
Background Prefabricated façade elements are widely used in the building industry since it speeds up the building process. A façade element may be a panel, often with a rectangular shape, one orseveral of which can be attached to the framework of the build-ing, thereby forminq the façade or a significant part thereof.It is desirable that the outer surface of the façade elementcan withstand wear and teer, does not crack, provides thermal insulation, and keeps moisture out, ages nicely and does not mildew. ln addition, it is desirable that the façade element has suitable aooustic properties.
It is also desirable that the façade element of a certainbuilding can obtain a unique design such that it enables thearchitect to express himself or herself.
Wood tends to warp, i.e. change its shape by for example bendingor twisting in response to changes in moisture and temperature.
This leads to deformation of the wood and also to the formation ëzxsoknirïgstezt, 'EOI-GV-LCr-lS 14003F35E22 of oraoks, which is undesirahle since oracks do not look nice and may trap water whioh may cause mildew.
It is previously known that the outting of grooves in theundersida of floorboards ~ which is not visible ~ prevents the formation of cracks in the floorboard.
US6009679 disoloses a façade element in a traditional stylewith overlapping planka that form horizontal grooves on thefaçade. This type of façade element has limited possibilitiesfor varying the design of the outer layer because of the over- lan.
SUMMARY OF THE INVENTION It is an object of the invention to solve at least some of the problems discussed above.
Therefore, in a first aspect of the invention there is provideda cross-laminated wood fasade element that has an upper endand a lower end, an inner surface, an outer surface and alongitndinal axis in the direction from the upper end to thelower end, said façade element comprising an inner layer oftimber elements and at least one intermediate layer of timberelements where the grain of the timber elements of the innerlayer and the grain of the timber elements of the at least oneintermediate layer are at least partially oriented in differentdirections, the façade element further oomprising' an outerlayer oomprising timber elements in which the grain directionis oriented approximately parallel to the longitudinal axis,where the outer surface of the façade element has grooves that are approximately parallel to the longitudinal axis.
Bnsdxnhægéilïert, ZG-i-å-lÜ-LB DJ The invention provides a fasade element with e uniform surface,that is strong, that does not trap water, that ohscures wearand tear, cracks less, and ages ih a beautiful way, and that can be produced in a cost-efficient manner.
The grooves een be efficiently obtained milling the outer sur- face of the façade element.
The outer layer preferably oomprises quartersawn timber ele-ments. This provides a particularly uniform, durable and re~ sistant outer surface.
The timber elements of the outer layer of the façade elementcan be connected with the use of rabhets. This has the advantage of minimizing water seepage into and trough the íaçade element.
The façade element may have rabhets for joining one façadeelement to another feçade element on the façade. This has theadvantage of minimizinq water seepage between façade elements that are mounted.
The façede element may have at least one mounting means formounting the façade element on the framework of a building.
This has the advantage of speeding up the building process. ln a second aspect of the invention it is provided a façadefor a building, comprising a plurality of façade elements ac~cording to the invention, arranged in a row or matrix pattern next to one another.
Ansöknlngstext, 2014~lO-13 143G3§SS2 In a third aspect of the invention there is provided a methodfor making a oross~laminated wood faoade element oomprisingthe steps of: a) preparing a piece of cross-laminated wood withthe general shape of a rectanqular parallelepiped that com-prises an inner layer of timber elements and at least oneintermediate layer of timber elements where the grain of thetimber elements of the inner layer and the timber elements ofthe at least one intermediate layer are at least partiallyoriented in different directions, the piece of cross laminatedwood further comprising an outer layer of timber elements wherethe grain direction is oriented approximately parallel to aside of the reotahgular parallelepiped, and b) shaping the pieoe of cross laminated wood hy milling.
The milling step may he carried out on the outer layer toobtain grooves ll that are approximately parallel to the grain direction of the outer layer.
The millinq step may also he carried out to create at leastone rabhet for joining one fasade element l to another façaoe element 1.
Milling may preferably be carried out with a computer numerical control (CNC) milling machine.
DRAWINGS Fig. 1 shows a perspective of a façade element, with an exampleof grooves on the outer surface of the element.Fig. 2 shows a outethrough of a façade element seen from the upper end or the lower end. Äriâëklli r>getext, 2934-10-13 3410539952 'JÛ 30* Fig. 3 shows a piece of cross laminated wood that forms a partof a façade element.Fig. 4a~4b shows how a plurality of façade elements can be joined to form a façade of a building.
Fig. 5a shows how guartersawn timber is sawn from a log.
Fig. 5b shows a cross section of a timber element.
Fig. 6 shows different types of timber.
Fig. 7-9 are drawings of s fasade element.
Fig. lüflll are details of Fig. 9, showing the upper end and the lower end of a fasade element.
Fig. l2~l5 illustrates different types of grooves on the sur-face of a façade element.
Fig. 16-1% shows how milling is used to obtain grooves on the surface of a façade element.
DETAILED DESRICPTÉON The invention provides a façade element and a method for pro- ducing such an element. The façade element is durable, is not prone to cracking or cracks in a controlled manner, is low~cost, ages in a beautiful manner, withstands wear and tear andprovides a surface that is as uniform as possible which givesarchitects and designers great freedom in providing novel fa~çade designs. In addition the façade element suppresses noiseby absorbing, blocking or diffracting sound. By “uniform”, inthis context, is meant a surface which may be essentially flator display regular or irregular patterns, which patterns appear in a uniform manner across at least major part of the surface.Figure l shows a fasade element l according to the invention.
The façade element 1 may be thought of as a panel used for building.
Axisëkxmingst-ext, Zülå-EC-llë íåíl-FESSEZ NJf.) GX The façade element l is intended to be fastened on the frameworkl4 of a building in the nwunted position discussed below, thereby forming a significant part of the façade.
Alternatively, the façade element oan be used for building a façade without the use of a framework.
The façade element l can also he used for building noise har» riers, such as highway noise barriers, roofs, interior walls and screens.
The element l is suitahly produced in standardized sizes, suchthat there is provided a plurality (at least two) of identicalor almost identical building elements. By “identioal” is herebymeant that two identical elements have the same type of regular or irregular surface patterns, as described above.
The façade element l can be produced in a factory and trans~ported to the building site where they can he rapidly fastenedto the framework lå of a building, thus forming the façade ofthe building. This speeds up the building process compared to building the façade plank by plank on the building site.
The fasade element l may he an essentially rectangular panel,optionally with rahbets lO and 20, the panel having a certain thiokness. In particular, the outar surface 2 of the fasadeelement l may have an essentially rectangular shape when theelement 1 is nwunted on a façade and seen from outside thehuilding. Fig 4a and åh shows how four façade elements l areconnected to form a part of a façade, where the outer surface 2 of the fasade elements l is reotangular.
The length and the width of the façade element l can be chosen to fit various standards for construction, and different types .Yxaïsökt-inqsteïï, šüí-i-.lfißlš ÄÅÛÜÉESEI FJC) šknsokningstext, 2014-1-1-13 HJ of buildings. Suitable height (h in Fig 7) oan be from Ü.5 to 12 m, preferably from 2 m to l2 m and a suitable width (w inFig 7) can be from 0.5 m to 12 m, preferably from 0.5 to 3 m.The thiokness of the façade element 1 may be, for example, from48 mm to 175 mm. The thiokness is chosen depending on the useof the façade element. ln a cold climate and/or a noisy envi-ronment and thicker façade element may be desired. Also, whenthe façade element 1 is used to build a façade without a frame-work lá the façade element will oonstitute a structural partof the building and should have a thiokness to support the building itself.
The façade element has an outer surface 2 and an inner surface 3. The element 1 is meant to be mounted on the façade with the outar surface 2 faoing outwards and the inner surface 3 faoingin towards the framework 14 of the building. The outer surface 2 may he formed by the outer layer 6.
The façade element 1 comprises oroas-laminated wood which makes the panel durable and stiff. Also, as it has become inoreas~ ingly expensive to obtain longer dimensions of timber, crosslaminated wood makes it possible to use timber elements forconstruction that otherwise would be too short for use in a building.
The fasade element 1 oomprises at least three layers of wood.re With ferenoe to Fig. 2~3, the façade element 1 comprises an inner layer á, at least one intermediate layer 5 and an outer layer 6. The at least one intermediate layer 5 is arrangedbetween the inner layer 4 and the outer layer 6. All threelayers 4, 5, 6 are composed of timber elements 7 that are elongated pieoes of wood that preferably have a reotangular cross section, so that they have a wider face 29 and a thinner face 30 (Fig 5b}. “Timber” is used in its British English l4ÜG39SE2 r-.g(I: meaning herein, i.e. reíereeing to sawn wood products. The timber elements 7 can be made from shorter timber elements 7that are joined one after the other in an end~toeend fashion.of the timber elements 7 The wood is preferably heartwood (while avoiding the pith), not sapwood.
The timber elements 7 may be from softwood, such as wood froma conifer auch as spruce and pine, Wood from Norwegian spruce(Picea abies) or Scots pine (Pinue eylvestris) and correspond~ ing North American species, 're suitable.
The inner layer 4, the intermediate layer 5 and the outer layer6 may consist of or comprise timber elements 7 that are flatsawnBÜÛ (see figure 6).
The outer layer 6 preferably comprises or consists of high-quality wood, such as for example wood according to standardclasses G4-0, G4-l or G4~2 according to European standard EN1611-l:l999 or Swedish P-standard 053 (as applied to the wood types mentioned heroin).
The onter layer 6 preferably comprises or consists of timber elements '7 of quartereawn timber or riftsawn timber, where quartersawn timber is preferred.
Fig 6 shows flatsawn timber 200, riftsawn timber 201 and quar- tersawn timber 202. Lines lOl indicate annual rings.
“Quartersawn timber” as used herein refers to timber with ananual rings 101 approximately perpendicular to the wider face29 of the timber element 7. Quartersawn timber may also in somemarkets be referred to as timber with “standing annual rings”rings”. “Approximately perpendicular” or “vert iCal anïnual shall mean angles d in Fig Eb of up to 3ܰ, preferably up to lëDÜCåQSEZ Ånsifikr-ingsiëc-ëct, SEGI-êfilfif 13 KO 20°, more preferahly up to lO°, even more preferahly up to 5°and most preferably up to 3° between the annual ring l0l and aline that is perpendicular to the wide face 29 of the timberelement 7. ourved and it is Annual rings 101 are slightly referred to fig 5b for the measurement of angle a.the wood in the Arrow 203 indicates the grain direction of timber elements 200, 201 and 202.Riftaawn timber shall mean timber where the annual rings areat an angle d of from 30” to GOÜ to the wide face 29 of thequartersawn timber is preferred, timber element 7. However, since it has a lower cost than riftaawn timber.
Fig öa shows a tree trunk 100 with a multitude of annual ringa101.timber element 200 that A quartersawn timber element 202 is shown as well as a is flatsawn. The annual rings 101 oftimber element 202 are approximately perpendioular to the wide faoe of the timber element.
Although more expensive than flatsawn timber, quartersawn tim-ber has advantages. lt is more resistant to warping than wood sawn in other ways, i.e. it does not change its shape as muchas other types of timber in response to changes in moistureand/or temperature. Also cracks in the surface of the wood donot form to the same extent in quartersawn timber. Quartersawntimber is therefore often used in certain details for musicinstruments such as violins and guitars. Quartersawn timber isalso less resistant to mildew. Therefore it does not have tobe painted or oiled, but ages nioely anyway.
Quartersawn wood also provides a more uniform surface, since the annual rings 101 will be less visible than in flatsawn Ansökningstext, 2014-10-13 14003951-32 timber. Flatsawn timber 200 has very conspiouous annular rings lül as can be seen in Hig 6, which may he undesirable.
Quartersawn timber is expensive and it is therefore preferahlyused only where these advantages are most important, i.e, in the outer layer 6.
When the façade element 1 consists of three layers of timberelements 7 the timber elements 7 preferahly have a thicknessthat provides durahility and insnlation while not being tooheavy and requiring too much raw material. The thiokness ofthe timber elements 7 of the inner layer 4 and the intermediatelayer 5 is suitahly, each, lå-24 mm, were l8~20 mm is morepreferred and 19 mm is the most preferred thickness. The thick~ness of the timber elements 7 of the outer layer 6 is suitahly2Ü~45 mmm, more preferred from 26 mm to 32 mm when the outer layer is going to he milled (see helow}, otherwise the outerlayer 6 can have the same thickness as the inner layer 4 andthe intermediate layer 5. The façade element 1 shown in the figures consists of three layers. However, the façade element 1 may consist of four, five, six or more layers whioh then suitably are made thinner than indicated above.
The grain directions of the inner layer å and the at least oneintermediate layer 5 are at least partially oriented in dif~ferent directions. Preferahly the angle between the grain di-rections is from 60” to 9Û°, and most preferred the angle is 90° such that the grain direction of the inner layer 4 isperpendicular to the grain direction of the at least one in-termediate layer 5, as can be seen in Fig 3.The grain directions of the outer layer 6 and the at least oneintermediate layer 5 is preferably at least partially oriented in different directions. Preferably the angle between the grain Ansokni ngstext, åíšeilš-íß-ií: låfißíššñlš G1 'IÛ ll directions is from 60” to 90°, and most preferred the angle is9G° such that the grain direction of the outer layer 6 isperpendicular to the grain direction of the at least one in-termediate layer 5, as can be seen in Fig 3. Thus the graindirection of the outer layer 6 and the inner layer 4 may bethe same, or almost the same.The element 1 may have an upper end 12 and a lower end 13,arranged in said mounted position facing substantially upwardsand substantially downwards, respeotively. The upper end 12and lower end 13 may have different fittings such as differentmounting means. Also, rabbets lö may have different designs inthe upper end 12 and lower end 13 as seen in for example fig10-11. The rabhet 10 of the lower end 13 and the rahbet 10 ofthe upper 12 end may form a lap joint such that a part of thelower end 13 of an upper element la is arranged outside of apart of the upper end 12 of a lower element lb when the elementsla, lb are both mounted, in a respective mounted position above one another, on the façade. This prevents water seepage.
The upper l2 and lower ends 13 define a longitudinal axis 28 of the element as shown in Fig. 4 and 7, arranged to be sub-stantially vertical in said mounted position. The grain direc-tion of timber elements 7 of the outer layer 6 is preferablyparallel or approximately parallel to the longitudinal axis28. This avoids trapping of water on the surface of the façade.Approximately parallel shall include an angle between the graindirection and the longitudinal axis 28 of up to 1Û°, more preferred up to 8°, even more preferred up to 5°, even more preferred up to 3°.
The façade element 1 is preferably arranged for mounting in anorientation in which the longitudinal axis is substantially vertical, and in which the outer surface 2 faces outwards from Iumsokní:-'.-|;ste>:t, .2Ül4-1ß>-l3 l4ÛÜ/593É2 12the façade of a building onto which the façade element is mounted. Thus, in the mounted position the grooves are suh~ stantially vertically arranged.The timber elements 7 of the outer layer 6 suitably have arespective width of 70 mm-l4O mm, preferably 94 mm ~l20 mm.(The width being measured on the side that is on the outer layer). Smaller dimensions of timber elements 7 can he used for the inner layer and the intermediate layer.
The timber elements 7 may have a roughly reotangular or paral~lelogram-shaped cross section as can he seen in figures 2, 3and Bb, however that the timber elements 7 of the outer layer5 may also oomprise rabbets 8 so that adjacent timber elements7, can be connected with lap joints 9 (fiq. 3). This decreasesthe risk ot water seepage from the exterior into the element land into the building.
Y Referring to figs 4a, 4o, 7, and 8, the sides of the façadeelement l itself are also suitably equipped with rabbets l0,20 that reduce the risk of water seepage in joints 27 betweenThe rabbets 10, mounted elements 1. 2O are designed so that that water seepage between elements l is minimlzed.
Preferably the rabbets 10 are designed as shown in Fig lO and ll i.e. such that, when the elements are mounted one above the other on the façade, a part of the lower end l3 of an upperelement la oovere the upper end l2 of the lower element lb, inorder to prevent water seepage. Rabbets lO may be slanted inan downwards-ontwards direction, in order to provide the draineage of rainwater, in particular rabbets 10 at the upper end l2as shown in Fig 10. Preferably there are also rabbets 2O onthe sides of element oonnecting the upper end l2 and the lowerend 13, l as shown in figures l, 2, 7 and 8, The terms “upper” 01 "IG 2.5 3G and “lower” refer to the element 1 as seen in said mounted position.Optional end-olosing piece 25 of fig. 2 has a width which isroughly equal to the combined thicknees of the inner layer 6 and the intermediate layer 5.
~The façade element l may he provided with mounting means for mounting the façade element l on the framework lå of a building in a permanent manner, auch as mounting brackets or prefabri~ oated holes. The façade element l may have at least one mounting bracket 15, for example on the lower part of the inside of the façade element l as shown in figs l0~ll. The mounting bracket 15 may extend along most of the width of the façade element l r as shown in Fig 7. Preferahly the mountinq bracket 15 is made of metal material, such as steel. The monnting bracket l5 may be fastened to the inner surface 3 of the façade element l with fastening means such. as screws or nails 16. The mounting bracket 15 is intended to be fastened to the framework lá of the T with faatening means auch as a fitting bracket buildingl7. The upper end l2 of the façade element 1 may have premadeholes 18 for fastening the element l to the framework l4 withnails or sorews, ae seen in Pig 10-ll. There may be an air gapbetween the framework 14 and the element l.
The outar surface 2 may he essentially flat as shown in fig.3. The façade formed by the element l will then have an evensurface. the onter surface 2 may However, in a preferred embodiment, have a pattern of grooves ll. The grooves ll are preferahly faoing towards the exterior of the façade, i.e. they are ex~ ternally facing qrooves. Thus the grooves ll of the façade element l may be straight or ourved (for example S~shaped) when Arißšizrtiïri-jëtexï, Zßlâfißfllš 113393553 "IÖ '15 h)C; lä the façade is observed from the outside. however, straight grooves ll are preferred. The pattern of grooves ll may bedecorative but also serves the purpose of obsouring damagesresulting from wear and tear on the surface of the façade. Woodsurfaoes are prone to cracking with age. In addition thegrooves ll prevent the formation of cracks in the surface byreleasing tensions. Any cracks that form will be smaller. Thus,the grooves ll provide the additional advantage of releasingtensions in the surface 2. The grooves ll also improves theacoustio properties of the façade element by deflecting or diffraoting sound waves. This may dampen noise.
A wide variety of patterns can be achieved by milling as de- scribed below.
The vertical qrooves ll can be designed in many different ways.The purpose of vertical grooves ll may serve the purpose of transporting away rain water from the surface of the façade.
Horizontal grooves should be avoided in climates where water < page can be a problem, as this may trap water that causes F» s emildew. Thus, in a preferred embodiment shown in figs l-2 andl2-15, the outer surface 2 of the façade element l has a numberof grooves ll that are parallel or approximately parallel tothe longitudinal axis 28, thus being vertical grooves in saidmounted position of the element l. Approsimately parallel shallinclude an angle between the grooves ll and the longitudinaleven more axis 28 to 8°, preferred up to 5°, even more preferred up to 3°. Thus, thegrooves ll and the wood grain will have approximately the same direction.
When the element l has the general shape of a reetangle whenthe element is mounted on a façade and seen from outside the building, it is preferred that the grain direction and the Skasdkningflstext, 20162-110-13 1430039332 10' grooves ll are parallel or approximately parallel to a side ofthe rectangle, where “approximately parallel” shall be under~stood as described above.
The grooves ll can have many different profiles. Fig 12 ~ l5shows examples of different profiles of grooves ll. Pig. 15 shows examples of timber elements 7 of the outer layer 6. ll may have a profile that is U~ in Pig l, 2 and l2~l4. ln particular the grooves shaped, as oan be seen The U~shapedprofile provides for a number of grooves ll that collect andtransport rain water downwards along the surface of the panel l in an efficient manner.
The maximum depth of the grooves ll can be from 3 mm to 20 mm,preferably 5~l5 mm deep, and most preferably 8~l2 mm deep. Thedepth and width of the grooves ll may vary over the outerand l7-18. surface 2 as shown in Figures l and l3-l4, However, when the outer su_face 2 has a generally rectangular shape itis preferred that the thickness of the faeade element l is thesame along the various points along the upper edge Zl as alongthe lower edge 22 of the outer surface (Pig lO~ll}, preferablysuch that continuous qrooves are created when elements 1 areThis is also joined and where the grooves ll are vertical. explained below in Figs l7~l8. ln a similar manner it is preferred that the thickness of theelement is the same along the vertical edges. This enables theformation of a façade where the joints 27 in Fig. 4 between two neighboring façade elements l is less visible or invisible, The pattern of grooves ll is preferably such that essentially every part of the outer surface 2 of the outer layer 6 (apart Imsèknings-:exn åñifl-lfwlfl lflüfjíšßsßï 1-5 flâC) 16 from parts that form hidden parts of lap joints between ele~ments) is a part of a groove ll. Examples of such patterns areshown in fig 1-2, and l3~l4 and fig. 15 e). lt is suitable thatat least 30%, more preferably 40% more preferably at least 60%,more preferably at least 80%, more preferably at least 95%,and most preferably at least 99% of the surface area of the outer surface 2 is covered by grooves ll.
Lamination of the laminated facade element 1 can be done as iswell known in the art. Standards DIN 1052 and EN 301 providesguidance in the field. from 2 to 5 MPA.
Suitable preasures include pressures Glue that can be used includes glue according to Swedish stand-ards SS-EN 204 and SS~EN 12765, olasses D4 or C4 respectively,or PUR adhesive which is completely eolvent and formaldehydefree and tested in aocordance with DIN 68141. A suitable glueis Casco Melamin.
Preferahly the timber elements T are, in a first step, lami-nated into a block to obtain a piece of cross laminated woodwhich may have the shape of a rectangular prism or a reotangularparallelepiped. The cross laminated wood piece is composed aedescribed above, however, the grain direction of the wood el~ements 7 of the outer layer 6 may be parallel or approximatelyparallel to a side of the piece of wood. Approximately parallelshall include an angle between the grain direction and the sideof the rectangular parallelepiped of up to 10°, more preferredup to 8°, even more preferred up to 5°, even more preferred up to 3°.
In the next step, the grooves ll and/or rabbets 10, 20, if any, are then formed. The grooves ll and/or rabbets 10, 20 are suitably obtained by millinq. An advantage with using milling Ansöknlngstext. Éñïä-lC~l3 íGGD395E2 17 is that rahbets 10, 20 can also be obtained by milling in thesame work step. Milling can be done to create an upper end 12 and a lower end 13 of the element l. lt is realized that other methods for forming the grooves ll, apart from milling, may also be useful, such as for example, by forming the outer layer 6 hy laminating together timber elements of different thicknesses.
When rabbets 10, 20 are formed by milling, milling may also hecarried out on the inner layer 4 and the intermediate layer 5(see for example fig. ll).Milling of the grooves ll is preferably carried out such thatgrooves ll are straight and approximately parallel to the graindirection of the outer layer, were approximately parallel shallhave the meaning described above. is carried out to a depth Preferably, milling of grooves ll that does not cut throuch the outer la er 6 of the elementY r but saves a suitable thiokness of material, such as at least25%, preferably 50%, of the total thickness. Preferably, mill~ing is not carried out deeper than 15 mm when the outer layeris 32 mm thick.
A wide variety of complex patterns, including the U-formedgrooves mentioned above, can he obtained if a computer numer- ical control (CNC) milling machine is used. Figures lö to 19 show how a milling machine can use two different milling toolswith radios (r) A and radius B to obtain a pattern of U-shapedgrooves ll on the outer surface 2 of the facade element l. Fig.16 shows the outer surface 2 of the façade element l with toolpaths 26 for milling. The tool paths 26 shown in Fig. 16 create straight grooves ll. Certain tool paths 31 create rabbets 20. lâQ039SE2 Rnsäkniflgstext, 2Ûl4~1ß-ll h!!E) 18 Figures 1 and l8 are diagrame that show how deep the millingtool with radios A and B respectively works from upper end tothe lower end of the façade element l. ln Diegrams 17 and 18the y~axis indicates the depth of cutting into the outer layer6. The x~axis indicates the position along the tool path 26,3l. lt can be noted that the tools start and stop at the samedepth level, resulting in the aforementioned level joihta 27at the upper 21 and lower 22 edge of outer surface 2, such thatcontinuous grooves are created when elements l are joined.
Figure 19 shows the element l seen from a short end (upper orlower end) where 23 indicates the outer surface of the pieceof wood before milling and the black marked part 24 shows what is removed hy millihg of grooves ll. lf a five-axie CNC milling machine ie used, a number of complexpatterns can be created including slalom-Shaped or S~shaped grooves ll. ln general during millihg procedures the part to he milled iaNevertheless, the item may tend The block of strapped to a milling table. to move during milling, which is undesirable.cross laminated wood according to the invention is surprisihglyeasy till mill. This is because it is eo heavy as not to move easily during milling.
Ansëkningstex t, 4- UII--lâ
权利要求:
Claims (4)
[1] 1. l.A cross-laminated wood façade element l that has an upperend l2 and a lower end 13, an inner surface 3, an outersurface 2 and a longitudinal axis 28 in the direction fromthe upper* end. l2 to the lower end. 13, said. element lcomprising an inner layer 4 of timber elements 7 and atleast one intermediate layer 5 of timber elements 7 wherethe grain of the timber elements 7 of the inner layer 4 andgrain of the timber elements 7 of the at least oneintermediate layer 5 are at least partially oriented indifferent directions, the façade element l furthercomprising an outer layer 6 comprising timber elements 7 inwhich the grain direction is oriented approximatelyparallel to the longitudinal axis 28, characterized in thatthe outer surface 2 of the façade element l has U-shapedgrooves ll that are straight and approximately parallel to the longitudinal axis 28.
[2] 2. The cross-laminated wood façade element according to claiml where the grooves ll have been obtained by milling the outer surface 2 of the façade element l.
[3] 3.The cross-laminated wood façade element according to claiml or 2 where the outer layer 6 comprises quartersawn timber elements 7.
[4] 4.The cross-laminated wood façade element according to anyone of the preceding claims where the timber elements 7 ofthe outer layer 6 of the façade element l are connected with the use of rabbets 8. .The cross-laminated wood façade element according to any one of the preceding claims which has at least one rabbet10, 20 for joining one façade element l to another façade element l. .The cross-laminated wood façade element according to any one of the preceding claims which has at least one mountingmeans for mounting the façade element l on the framework of a building. . Façade of a. building, comprising aa plurality' of .façade elements l according to any one of the preceding claims, arranged in a row or matrix pattern next to one another.
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同族专利:
公开号 | 公开日
WO2016034309A1|2016-03-10|
US20170241144A1|2017-08-24|
EP3189193A1|2017-07-12|
SE539753C2|2017-11-14|
WO2016034309A8|2017-04-06|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题

GB717797A|1952-08-14|1954-11-03|Stanley James Glover|Wood fencing|
CH587400A5|1975-05-12|1977-04-29|Schaer Oskar|Timber wall or ceiling cover plates - has three adhesive bonded layers with decorative surfaces resembling sawn timber|
DE2725008A1|1977-06-02|1978-12-14|Escourcoise Des Bois Labouheyr|Wall lining panel with soft wood core - has outer layer of harder wood and is made of vertical strips with chamfered edges stuck onto central core|
DE69231365T2|1992-05-21|2001-03-29|Triangle Pacific Corp|FASTENING SYSTEM FOR LATERAL AND PARALLEL LATCHES|
DE20306117U1|2003-04-16|2003-12-04|Weber Holztechnik Gmbh|Surface-covering element used for covering walls or ceilings has on its visible side alternately arranged protrusions and/or recesses|
DE202006012379U1|2006-08-11|2006-10-19|Bürling, Eckhard|Panel for paneling wall surfaces and room surfaces comprises several material elements which deviate optically from each other and an upper side with a relief exposing the material elements|
US20100058691A1|2008-09-10|2010-03-11|Robert Mannion|Cellular pvc siding, trim, and architectural assemblies|
DK2644478T3|2012-03-27|2018-08-13|Upm Plywood Oy|PLYWOOD PANEL|PT3470599T|2017-10-13|2020-01-06|SWISS KRONO Tec AG|Osb board and use of same|
US10612235B2|2018-01-04|2020-04-07|Jon PUES|Energy wall stud member and construction system|
法律状态:
优先权:
申请号 | 申请日 | 专利标题
SE1451040|2014-09-05|
SE1451222A|SE539753C2|2014-09-05|2014-10-13|Facade element|SE1451222A| SE539753C2|2014-09-05|2014-10-13|Facade element|
US15/506,732| US20170241144A1|2014-09-05|2015-07-07|Wooden facade element|
PCT/EP2015/065425| WO2016034309A1|2014-09-05|2015-07-07|Wooden facade element|
EP15734383.1A| EP3189193A1|2014-09-05|2015-07-07|Wooden facade element|
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