WO2015040641A1 - Joint for right-angle connection of two wooden boards - Google Patents
Joint for right-angle connection of two wooden boards Download PDFInfo
- Publication number
- WO2015040641A1 WO2015040641A1 PCT/IT2013/000252 IT2013000252W WO2015040641A1 WO 2015040641 A1 WO2015040641 A1 WO 2015040641A1 IT 2013000252 W IT2013000252 W IT 2013000252W WO 2015040641 A1 WO2015040641 A1 WO 2015040641A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bar
- hooks
- hook
- joint
- well
- Prior art date
Links
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 description 8
- 239000002023 wood Substances 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 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
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/0004—Joining sheets, plates or panels in abutting relationship
- F16B5/0032—Joining sheets, plates or panels in abutting relationship by moving the sheets, plates, or panels or the interlocking key parallel to the abutting edge
- F16B5/0036—Joining sheets, plates or panels in abutting relationship by moving the sheets, plates, or panels or the interlocking key parallel to the abutting edge and using hook and slot or keyhole-type connections
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/96—Corner joints or edge joints for windows, doors, or the like frames or wings
- E06B3/984—Corner joints or edge joints for windows, doors, or the like frames or wings specially adapted for frame members of wood or other material worked in a similar way
-
- 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
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
A joint for right-angle connection of two wooden boards (T1, T2) composed of a first bar (1) and a second bar (2) respectively adapted to be mounted on the first board (T1) and second board (T2), as well as provided with fixing means (10, 11, 20, 21) adapted to be firmly coupled after bringing the bars (1, 2), in contact one against the other.
Description
Description
Joint for right-angle connection of two wooden boards.
The present patent application for industrial invention relates to a joint for right-angle connection of two wooden boards, preferably used to form a window frame.
The peculiarities and advantages of the invention will become more evident after a short description of the prior art.
As it is known, wood workers often need to fix wooden boards or sections in right-angle configuration, typically when making window frames, and also when building furniture components, such as doors, panels and the like.
Traditional fitting systems, such as mortise and tenon joints or dovetail joints, are generally used in these situations.
However, the parts to be connected in right-angle configuration undergo very sophisticated and expensive operations. Moreover, the mounting of these parts requires a highly skilled operator,
In view of the above, the purpose of the present invention is to devise a right-angle connection method for wooden boards or sections that is especially simple and inexpensive.
An additional purpose of the present invention is to make said right- angle connection possible also for unskilled workers without the use of sophisticated tools.
In other words, the present invention allows do-it-yourself users to assemble the various parts of a wooden frame or any other frame structure purchased as an assembly kit.
The inventive idea of the present invention is to obtain a metal joint made of two metal bars that are mutually joined with fast-coupling and
"drowned" in the thickness of the two boards to be connected in right-angle configuration.
In particular, the first board is provided in the front with a metal bar on the transversal edge, facing the second board.
The second board is provided with a metal bar mounted in lateral position on the longitudinal edge, facing the first board near the end to be connected in right-angle configuration with the first board.
The first of said bars is frontally provided with two hooks adapted to be exactly coupled, after a suitable sliding movement, with two hooks provided on the second bar and basically acting as housing and retention seats.
After coupling the two bars, their mutual position must be stabilized in order to prevent them from uncoupling and disconnecting the wooden boards joined with them.
Such stabilization can be obtained by means of a stop pin that prevents any additional mutual sliding movement between the two bars as illustrated in detail in the description below.
In order to understand the practicality of the new technology, it must be noted that the two metal bars that cooperate on the boards to be connected can be very easily mounted by the user as long as the boards are provided with suitable grooves to house the bars.
The operator simply needs to screw the metal bars into the grooves provided on the wooden boards to be connected in right-angle configuration.
For explanatory reasons, the description of the invention continues with reference to attached drawings, which only have an illustrative, not limiting value, wherein:
- Figure 1 is an axonometric view of the two metal bars of the joint of the invention before being mounted on the boards;
- Figure 2 is an axonometric view of the same two bars after being mounted on the boards and mutually coupled.
Referring to said figures, the joint of the invention (G) is formed of two flat metal bars (1 , 2) with narrow elongated shape, which are adapted to be mutually coupled.
The first bar (1 ) is frontally provided with a pair of identical hooks (10, 1 1 ) directed along the longitudinal axis (x-x) of the bar (1 ) and contained in the width of the same.
In particular, each of said hooks (10, 1 1 ) is formed of a basically parallelepiped projection directly projecting from the front side of said first bar (1 ) and provided on the most external section with a point disposed in such manner to define a compartment (12) in combination with the front side of the first bar (1 ).
Moreover, the points of the two hooks (10, 1 1 ) are faced towards the same direction, it being provided that the distance between the first hook (10) and the second hook (1 1 ) is higher than the length (z) of each hook.
The first bar (1 ) is provided with a through hole (1 a) adapted to be crossed by a screw (V1 ) used to fix it against the wooden board (T1 ).
According to the preferred embodiment shown in the attached figures, two identical parallel arms (13) diverge perpendicularly from the two longitudinal ends of said first bar (1 ), facing the opposite side with respect to the hooks (10, 1 1 ).
Each arm (13) is provided with at least one through hole (13a) adapted to receive a fixing screw (V1 ').
Also the second bar (2) is frontally provided with a pair of identical hooks (20, 21 ) having a basically identical shape and size as the hooks (10, 1 1 ) provided in said first bar (1 ).
In view of the above, each of the hooks (20, 21 ) of the second bar (2) is formed of a basically parallelepiped projection provided in the most
external section with a point disposed in such manner to define a compartment (22) in combination with the front side of the second bar (2).
Also the two hooks (20, 21 ) of the second bar (2) are provided with points facing the same direction and directed along the longitudinal axis (y-y) of the second bar (2), as well as contained in the width of the same; likewise, the distance between the first hook (20) and the second hook (21) is higher than the total length (z) of each hook.
Also the second bar (2) is provided with through holes (2a) adapted to be crossed by screws (V2) used to fix it against the wooden board (T2).
It must be noted that the second bar (2) is provided, at the height of one of its ends and in correspondence of the front side, with a parallelepiped block (23) disposed in such manner that its longitudinal axis (k-k) is parallel to the longitudinal axis (y-y) of the second bar (2); it being also provided that said block (23) is centrally crossed by an axial cylindrical hole (23a) with threaded walls.
The distance between said parallelepiped block (23) and the first hook (20) of the second bar (2) is higher than the total length (z) of each of said two hooks (20, 21 ).
The second bar (2) is frontally provided with a first housing, comprised between the block (23) and the first hook (20), which is adapted to receive the first hook (10) of the first bar (10) when the two bars (1 , 2) are brought in contact one against the other. Moreover, the second bar (2) is provided with a second housing comprised between the first hook (20) and the second hook (21 ), which is adapted to receive the second hook (1 1 ) of the first bar (1 ) when the two bars (1 , 2) are in interfaced position.
Given the basically identical shape of the two bars (1 , 2), it is easy to understand that their mutual interference causes an additional condition, wherein the first hook (20) of the second bar (2) is engaged into the housing provided between the first hook (10) and the second hook (1 1 ) on the front
of the first bar (1 ), whereas the second hook (21 ) of the second bar (2) is engaged against the front side of the first bar (1 ) in more external position with respect to the second hook (1 1 ) of the same.
Reference is made to Fig. 2 for a better understanding of the cooperation mode of the two bars (1 , 2). As shown, the bars (1 , 2) are designed to be substantially mounted in the center of the thickness of the wooden boards (T1 , T2) to be mounted in right-angle configuration.
For this reason, a surface portion of the two wooden boards (T1 , T2) has been removed in both figures, being this the only condition to make the two bars (1 , 2) visible.
Referring to the same figures, it must be noted that the first bar (1 ) must be positioned in such manner that its back side is engaged against one of the transversal edges (BT) of the first wooden board (T1 ), basically having the same length.
When in such a position, the first bar (1 ) must be firmly fixed with the screws (V1) that are engaged in the wood of the first board (T1 ) after crossing the through holes (1 a).
According to the embodiment shown in the attached figures, the first bar (1 ) is provided at its ends with the opposite arms (13) that project from the opposite side with respect to the hooks (10, 1 1 ).
In order to house the two parallel arms (13) the first wooden board (T1 ) is provided with two identical grooves (S1 ) obtained on the longitudinal edges.
After being inserted into the grooves (S1 ) of the first board (T1 ), the arms (13) are firmly fixed with the screws (V1 ') that are engaged in the wood of the first board (T1 ) after crossing the through holes (13a).
In order to mount the second bar (2) a groove (S2) is obtained on one of the longitudinal edges (BL) of the second board (T2) at the height of its end.
The second bar (2) is firmly engaged inside said groove (S2) with the fixing screws (V2) that are engaged in the wood of the second board (T2) after crossing the through holes (2a) of the second bar (2).
In particular, such a groove (S2) has a suitable depth to completely house the second bar (2) together with the hooks (20, 21 ) and the block (23), as well as to exactly contain the first bar (1 ) in its mouth, when it is interfaced with the second bar (2). In particular, such a housing capability of the groove (S2) is shown in Fig. 2.
Moreover, while mounting the two bars (1 , 2) in the wooden boards (T1 , T2), the hooks (10, 1 1 ; 20, 21 ) must be positioned in such manner to face opposite directions. The right-angle connection of the two boards (T1 , T2) provided with the bars (1 , 2) is illustrated below.
The hooks (10, 1 1 ) of the first bar (1 ), which is fixed to the transversal edge (BT) of the first board (T1 ), are inserted inside the groove (S2) obtained on the longitudinal edge (BL) on the second board (T2), thus providing exact interface with the second bar (2) that is already fixed in position.
During such an operation, the two hooks (10, 1 1 ) of the first bar (1 ) are inserted in the insertion points provided on the front of the second bar (2).
The first hook (10) of the first bar (1 ) is inserted between the block (23) and the first hook (20) of the second bar (2). Likewise, the second hook (1 1 ) of the first bar (1 ) is inserted between the first hook (20) and the second hook (21 ) of the second bar (2).
When the two bars (1 , 2) are in interfaced position, the first hook (20) and the second hook (21 ) of the second bar (2) reach the insertion points provided on the front of the first bar (1 ).
In particular, the first hook (20) of the second bar (2) is inserted between the first hook (10) and the second hook (1 1 ) of the first bar (1 ),
whereas the second hook (21 ) of the second bar (2) is positioned on the front of the first bar (1 ) in more external position with respect to the second hook (1 1 ) of the latter.
Now, the board (T1 ), and the first bar (1 ) joined to it, slides transversally in such manner that the points of the two hooks (10, 1 1 ) of the first bar (1 ) are exactly inserted into the compartments (22) provided on the back of the points of the hooks (20, 21 ) of the second bar (2).
Further to such an operation, the points of the hooks (20, 21 ) provided on the second bar (2) are exactly engaged inside the compartments (12) provided on the back of the points of the hooks (10, 1 1 ) of the first bar (1 ) as shown in Fig. 2.
At least theoretically, such a mutual coupling between the hooks (10, 1 1 ; 20, 21 ) of the two bars (1 , 2) can be impaired by the occasional inverse sliding movement of the first bar (1) with respect to the second bar (2), possibly caused by the stress transmitted by the board (T1 ) .
In order to prevent such a possibility, a stop pin (24) is provided and adapted to engage in said axial hole (23a) of the block (23) provided on the second bar (2).
As shown in Fig. 2, said pin (24) is provided with stem (24a) having a higher length than the insertion hole (23a), in such manner that, after coming out from the opposite part of said block (23), said point is brought in contact against the first hook (10) of the first bar (1) that lies in the proximity of the block (23).
The contrast produced by said pin (24) in favor of said first hook (10) of the first bar (1 ) prevents the latter from occasionally sliding "backwards" with respect to the second bar (2), thus generating the uncoupling of the cooperating hooks (10, 1 1 ; 20, 21 ).
Claims
Claims
1 ) A joint for right-angle connection of two wooden boards (T1 , T2) characterized in that it is composed of a first bar (1 ) and a second bar (2) respectively adapted to be mounted on the first board (T1 ) and second board (T2), as well as provided with fixing means (10, 1 1 ; 20, 21 ) adapted to be firmly coupled after bringing the bars (1 , 2) in contact one against the other.
2) The joint of claim 1 , wherein:
- said first bar (1), which has a flat, narrow and elongated shape, is provided with a pair of identical hooks (10, 1 1 ) disposed in the same direction along the longitudinal axis (x-x) of the first bar (1 ), as well as contained in the width of the first bar (1 ) and spaced by a distance higher than the length (z) of each hook; wherein each of said hooks (10, 1 1 ) is formed of a basically parallelepiped projection provided on the most external section with a point defining a compartment (12) in combination with the front side of said first bar (1 ), and wherein the first bar (1 ) is provided with at least one through hole (1 a) for insertion of a fixing screw (V1 );
- said second bar (2), which is basically identical to the first bar (1 ), is provided with a corresponding pair of hooks (20, 21 ) disposed in the same direction along the longitudinal axis (y-y) of the second bar (2), as well as contained in the width of the second bar (2) and spaced by a distance higher than the length (z) of each hook; wherein each of said hooks (20, 21 ) is formed of a basically parallelepiped projection provided on the most external section with a point defining a compartment (22) in combination with the front side of said second bar (2), and wherein the second bar (1 ) is provided with at least one through hole (2a) for insertion of a fixing screw (V2);
- said points of the hooks (1 1 ) of the first bar (1 ) are adapted to be engaged, after a mutual sliding movement in longitudinal direction of the two bars (1 ,
2) , inside the compartments (22) of the second bar (2); likewise, the points of the hooks (21 ) of the second bar (2) are adapted to be engaged inside said compartments (12) of the first bar (1 ).
3) The joint of claim 2, wherein the first bar (1 ) is provided at both ends with perpendicular arms (13) facing the opposite side with respect to the hooks
(10, 1 1 ), as well as provided with at least one through hole (13a) adapted to be crossed by a fixing screw (V1 ').
4) The joint of claim 2, wherein the second bar (2) is provided on the front of one of its ends with a parallelepiped block (23) disposed in such manner that its longitudinal axis (k-k) is parallel to said longitudinal axis (y-y) of the second bar (2), as well as centrally crossed by an axial cylindrical hole (23a) provided with threaded walls, adapted to receive a pin (24) with stem (24a) having higher length than the block (23); wherein said block (23) has a distance from the first hook (20) of the second bar (2) higher than the length (z) of the hook (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IT2013/000252 WO2015040641A1 (en) | 2013-09-19 | 2013-09-19 | Joint for right-angle connection of two wooden boards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IT2013/000252 WO2015040641A1 (en) | 2013-09-19 | 2013-09-19 | Joint for right-angle connection of two wooden boards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015040641A1 true WO2015040641A1 (en) | 2015-03-26 |
Family
ID=49780270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IT2013/000252 WO2015040641A1 (en) | 2013-09-19 | 2013-09-19 | Joint for right-angle connection of two wooden boards |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2015040641A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3117741A1 (en) * | 2015-07-17 | 2017-01-18 | pro.fund GmbH | Shelving system with a plug-in connection |
| CN106773564A (en) * | 2016-12-26 | 2017-05-31 | 武汉华星光电技术有限公司 | A kind of APR editions fixed jig |
| EP3321518A3 (en) * | 2016-11-09 | 2018-08-01 | Roland Maus | Sliding movement friction closure |
| CN110342065A (en) * | 2019-07-23 | 2019-10-18 | 广州市金钟汽车零件股份有限公司 | A kind of spliced variodenser |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3490797A (en) * | 1968-12-17 | 1970-01-20 | Eugene L Platte | Clip assembly |
| DE20116248U1 (en) * | 2001-10-04 | 2002-01-17 | Kenmark Ind Co Ltd | Device for joining boards |
| DE10218713C1 (en) * | 2002-04-24 | 2003-10-30 | Roland Maus | Fixing device with interlocking elements provided with system of interfitting projections and reception openings |
-
2013
- 2013-09-19 WO PCT/IT2013/000252 patent/WO2015040641A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3490797A (en) * | 1968-12-17 | 1970-01-20 | Eugene L Platte | Clip assembly |
| DE20116248U1 (en) * | 2001-10-04 | 2002-01-17 | Kenmark Ind Co Ltd | Device for joining boards |
| DE10218713C1 (en) * | 2002-04-24 | 2003-10-30 | Roland Maus | Fixing device with interlocking elements provided with system of interfitting projections and reception openings |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3117741A1 (en) * | 2015-07-17 | 2017-01-18 | pro.fund GmbH | Shelving system with a plug-in connection |
| EP3321518A3 (en) * | 2016-11-09 | 2018-08-01 | Roland Maus | Sliding movement friction closure |
| CN106773564A (en) * | 2016-12-26 | 2017-05-31 | 武汉华星光电技术有限公司 | A kind of APR editions fixed jig |
| CN110342065A (en) * | 2019-07-23 | 2019-10-18 | 广州市金钟汽车零件股份有限公司 | A kind of spliced variodenser |
| CN110342065B (en) * | 2019-07-23 | 2020-09-15 | 广州市金钟汽车零件股份有限公司 | Spliced variable container |
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