FR2556426A1 - Corner assembly with multiple wedge-shaped butt joints, for planks of wood, plywood and similar materials - Google Patents
Corner assembly with multiple wedge-shaped butt joints, for planks of wood, plywood and similar materials Download PDFInfo
- Publication number
- FR2556426A1 FR2556426A1 FR8319975A FR8319975A FR2556426A1 FR 2556426 A1 FR2556426 A1 FR 2556426A1 FR 8319975 A FR8319975 A FR 8319975A FR 8319975 A FR8319975 A FR 8319975A FR 2556426 A1 FR2556426 A1 FR 2556426A1
- Authority
- FR
- France
- Prior art keywords
- planks
- wood
- plywood
- assembly
- similar materials
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002023 wood Substances 0.000 title claims abstract description 5
- 239000000463 material Substances 0.000 title claims abstract description 4
- 239000011120 plywood Substances 0.000 title claims abstract description 4
- 238000003754 machining Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/44—Leg joints; Corner joints
- F16B12/46—Non-metal corner connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/04—Non-loosenable joints for non-metal furniture parts, e.g. glued
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/04—Non-loosenable joints for non-metal furniture parts, e.g. glued
- F16B2012/043—Non-loosenable joints for non-metal furniture parts, e.g. glued using carpentry joints other than mortise and tenon joints, e.g. using multiple tenons
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furniture Connections (AREA)
Abstract
Description
La présente invention concerne wu moyen de jonction par tenons cunéiformes à serrage statique et collage, de l'angle de deux planches ou planchettes formant dièdre, conférant à l'assemblage ainsi obtenu une solidité sensiblement égale à celle du corps des planches ou des planchettes le constituant. The present invention relates wu means of junction by wedge-shaped tenons with static clamping and bonding, of the angle of two boards or boards forming a dihedral, giving the assembly thus obtained a solidity substantially equal to that of the body of the boards or boards. component.
On connatt, depuis toujours, des modes de jonction d'angle par entures multiples ou tenons multiplets, encore utilisés auåourdthui pour la confection des éléments de coffrets soignés devant contenir des objets de prix comme des outillages précis et fragiles, ou des instruments scientifiques. We have known, from time immemorial, modes of angle joining by multiple splices or multiplet tenons, still used auåourdthui for the preparation of elements of neat boxes that must contain priceless items such as precise and fragile tools, or scientific instruments.
On connatt aussi les assemblages à queues d'aronde, normales ou couvertes, utilisés en particulier pour la jonction des côtés des tiroirs de meubles. We also know the dovetail joints, normal or covered, used in particular for joining the sides of furniture drawers.
Dans les deux cas, une extrême précision est nécessaire pour la réalisation de l'assemblage, puisqu'aucune pression ne peut être appliquée pour assurer le collage. De plus, pour l'assemblage à queues d'aronde, les procèdés de réalisation étaient assez lents, et la solidité très insuffisante. In both cases, extreme precision is necessary for the realization of the assembly, since no pressure can be applied to ensure bonding. In addition, for the dovetail assembly, the production processes were quite slow, and the solidity was very insufficient.
Le procédé, suivant l'invention, permet de surmonter ces inconvénients. The method according to the invention overcomes these drawbacks.
En effet, la forme en coin des tenons procure au moment de la mise en place de l'asxemblage, une pression des faces encollées, les unes contre les autres. L'angle de coin a été déterminé pour que la pression de collage ainsi obtenue par le mouvement d'engagement de l'assemblare, reste statiquement maintenue après relachement de l'effort qui l'a causée. De plus, en cas d'imprécision dimensionnelle de l'ensemble des tenons, un enfoncement plus ou moins prononcé permet toujours d'atteindre la pression de serrage désirée. Indeed, the wedge shape of the tenons provides, when the assembly is put in place, a pressure of the glued faces, one against the other. The corner angle was determined so that the bonding pressure thus obtained by the engagement movement of the assembly, remains statically maintained after release of the force which caused it. In addition, in the event of dimensional imprecision of all the studs, a more or less pronounced sinking always makes it possible to reach the desired clamping pressure.
Enfin, la forme en coin des tenons réduit autant qu'il est possible la surface des parties coupées perpendiculairement et sur lesquelles le collage est de faible tenue, comme chacun sait, en bois "de bout"
On obtient ainsi toujours le maximum de résistance du joint collé, et par suite, de l'assemblage.Finally, the wedge shape of the studs reduces as much as possible the surface of the parts cut perpendicularly and on which the bonding is poor, as everyone knows, in "end" wood
The maximum resistance of the bonded joint and therefore of the assembly is always obtained.
Le moyen d'assemblage selon l'invention comporte, à l'ex- trémité de chacune des planchettes à assembler, une pluralité de tenons en forme de coin. The assembly means according to the invention comprises, at the end of each of the boards to be assembled, a plurality of tenons in the form of a wedge.
Les faces latérales des tenons sont biaises dans les deux sens, longitudinal et transversal, avec un même angle, tel que l'enzagement et l'enfoncement de deux planchettes l'une dans l'autre provoque un coincement, irréversible sous l'effet des seules réactions statiques. La valeur choisie pour l'angle des tenons est donc inférieure à celle qui correspond au coefficient de frottement des surfaces encollées l'une sur l'autre. Cette valeur est comprise entre 5 et 200. The lateral faces of the tenons are biased in both directions, longitudinal and transverse, with the same angle, such that the engagement and insertion of two boards into one another causes jamming, irreversible under the effect of only static reactions. The value chosen for the angle of the tenons is therefore less than that which corresponds to the coefficient of friction of the surfaces glued one on the other. This value is between 5 and 200.
Les entailles laissées- entre eut par les tenons consécutifs présentent par conséquent, une forme conjuguée de ceux-ci, et l'usinage des tenons et entailles est fait de telle sorte que leurs dimensions correspondent exactement. The notches left between the consecutive tenons therefore have a conjugate shape thereof, and the machining of the tenons and notches is done so that their dimensions correspond exactly.
Toutefois, on prévoit un certain jeu dans le fond des entailles en leur donnant une profondeur lég-rement supérieure à ce qui est nécessaire. Ainsi, il sera possible, au moment de l'engagemer d'enfoncer plus ou moins les deux éléments de l'assemblage l'un dans l'autre pour obtenir le serrage voulu. However, a certain clearance is provided in the bottom of the notches, giving them a depth slightly greater than what is necessary. Thus, it will be possible, at the time of engaging, to push the two elements of the assembly more or less into one another to obtain the desired tightening.
Les dimensions des tenons et entailles sont déterminées de telle sorte que le collage de l'ensemble de leurs surfaces latérales soit suffisant pour assurer à l'assemblage fini une résistance au moins égale à la résistance du corps des planchettes. Pour obtenir cela, il suffit aux la somme des surfaces latérales des tenons d'une planchette soit à peu prés égale à la section droite de la planchette et, par suite, que la largeur des tenons soit à peu près égale à l'épaisseur des planchettes - il n'est pas nécessaire de multiplier à I'excès le nombre des tenons en réduisant leur largeur. The dimensions of the tenons and notches are determined so that the bonding of all of their lateral surfaces is sufficient to provide the finished assembly with a resistance at least equal to the resistance of the body of the boards. To obtain this, it suffices for the sum of the lateral surfaces of the tenons of a board to be approximately equal to the cross section of the board and, consequently, that the width of the tenons is approximately equal to the thickness of the boards - there is no need to over-multiply the number of studs by reducing their width.
Les croquis en annexe illustrent la réalisation du mode d'assemblage selon l'invention. The attached sketches illustrate the embodiment of the assembly method according to the invention.
Les fig. 1 et 2 représentent les extrémités des deux planchettes usinées. Figs. 1 and 2 represent the ends of the two machined boards.
La fig. 3 représente l'assemblage terminé ; chaque planchette (1) d'épaisseur (e) présente une pluralité de tenons (2) et d'entaille (3) au droit de l'extrémité à assembler. Les faces latérales (4) des tenons (2) vont se rapprocher et s'appliquer les unes contre les autres, lorsque les tenons (2) seront venus se loger dans les entaille (3). Fig. 3 shows the completed assembly; each board (1) of thickness (e) has a plurality of tenons (2) and notch (3) in line with the end to be assembled. The lateral faces (4) of the studs (2) will come closer and apply one against the other, when the studs (2) have come to lodge in the notches (3).
La profondeur plus grande des entailles (3) laisse apparatre sous les tenons (2) un jeu (5) au fond de l'assemblage, permettant une compensation des petites erreurs dimensionnelles d'usinage. The greater depth of the notches (3) lets appear under the studs (2) a clearance (5) at the bottom of the assembly, allowing compensation for small dimensional machining errors.
Du fait de l'inclinaison des faces latérales des tenons, sur le plan axial des planches, les faces frontales et sommitales desdits tenons sont en forme de trapèze isocèle, dont l' ngle au sommet (a) est le même, pour lesdites faces frontales et sommitales, et compris entre 5 et 20 degrés. La largeur des tenons (p/2) est sensiblement égale à l'épaisseur (e) des planchettes. Le pas de la denture (p) est alors sensiblement égal au double de l'épaisseur des planchettes. Due to the inclination of the lateral faces of the tenons, on the axial plane of the boards, the front and top faces of said tenons are in the form of an isosceles trapezium, the ngle at the top (a) of which is the same, for said front faces and summit, and between 5 and 20 degrees. The width of the studs (p / 2) is substantially equal to the thickness (e) of the boards. The pitch of the toothing (p) is then substantially equal to twice the thickness of the boards.
Ainsi, lors de l'engagement, et après encollage des faces latérales (4) des tenons (2), chacun de ceux-ci vient se loger dans chacune des entailles (3) correspondantes. Le mouvement d'engagement seillon les flèches (F) provoque, au moment de l'accostage, une pression des faces latérales (4) les unes contre les autres par effet de coin. Thus, during engagement, and after gluing of the lateral faces (4) of the studs (2), each of these comes to be housed in each of the corresponding notches (3). The engagement movement in the arrows (F) causes, when docking, a pressure of the side faces (4) against each other by wedge effect.
Dès que cette pression est suffisante pour assurer un bon collage, l'effort selon (F) peut cesser.As soon as this pressure is sufficient to ensure good bonding, the effort according to (F) may cease.
Le coincement de l'assemblage est tel que l'ensemble peut être manipulé, précautionneusement toutefois, et stocké jusqu'à ce.- que la colle ait terminé sa prise. The jamming of the assembly is such that the assembly can be handled, however carefully, and stored until the glue has finished setting.
Le moyen d'assemblage selon l'invention est appLicable à tous les cas où l'on a besoin d'une Jonction d'angle solide pour des planches ou planchettes de bois, contreplaqué ou autres matériaux analogues. I1 est particulièrement indiqué dans la confection des emballages, des éléments de meubles, des coffrets etc... The assembly means according to the invention is applicable to all cases where a solid corner joint is required for planks or boards of wood, plywood or other similar materials. I1 is particularly suitable for making packaging, furniture elements, boxes, etc.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8319975A FR2556426B3 (en) | 1983-12-12 | 1983-12-12 | CORNER ASSEMBLY WITH MULTIPLE CUNEIFORM ENTURES, FOR WOOD BOARDS, PLYWOOD AND SIMILAR MATERIALS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8319975A FR2556426B3 (en) | 1983-12-12 | 1983-12-12 | CORNER ASSEMBLY WITH MULTIPLE CUNEIFORM ENTURES, FOR WOOD BOARDS, PLYWOOD AND SIMILAR MATERIALS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2556426A1 true FR2556426A1 (en) | 1985-06-14 |
| FR2556426B3 FR2556426B3 (en) | 1986-03-28 |
Family
ID=9295138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8319975A Expired FR2556426B3 (en) | 1983-12-12 | 1983-12-12 | CORNER ASSEMBLY WITH MULTIPLE CUNEIFORM ENTURES, FOR WOOD BOARDS, PLYWOOD AND SIMILAR MATERIALS |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2556426B3 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990013402A1 (en) * | 1989-05-03 | 1990-11-15 | Robert John Duncanson | Improved jointing of building panels and sheets |
| AU636345B2 (en) * | 1989-05-03 | 1993-04-29 | Robert John Duncanson | Improved jointing of building panels and sheets |
| CN110193701A (en) * | 2019-06-13 | 2019-09-03 | 上海樊恒金属制品有限公司 | A kind of folding technology of cabinet drawer panel |
-
1983
- 1983-12-12 FR FR8319975A patent/FR2556426B3/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990013402A1 (en) * | 1989-05-03 | 1990-11-15 | Robert John Duncanson | Improved jointing of building panels and sheets |
| AU636345B2 (en) * | 1989-05-03 | 1993-04-29 | Robert John Duncanson | Improved jointing of building panels and sheets |
| CN110193701A (en) * | 2019-06-13 | 2019-09-03 | 上海樊恒金属制品有限公司 | A kind of folding technology of cabinet drawer panel |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2556426B3 (en) | 1986-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |