FI92369C - Joining procedure and joint - Google Patents

Description

92369

The present invention relates to a method according to the preamble of claim 1, in particular for joining planar bodies to each other.

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The invention also relates to a joint according to the preamble of claim 3.

The invention further relates to a body for use in applying the method according to the preamble of claim 8.

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The invention further relates to the use of the bodies according to claim 8 for forming surfaces.

The joining method according to the invention is intended in particular for joining table tops, but it is also well suited for joining other sheet-like pieces. Preferred applications are, for example, panels, floor materials and other upholstery panels.

Several connection methods are known which are suitable for the above-mentioned objects. The most common are 20 different joint joints, in which a protruding joint and a corresponding lip are made at the edge of the piece. The joint connection carries a good load and the joint is clean and it can be used to make a smooth and even surface from the pieces. The weakness of the connection method is that two different pieces are always needed for the connection, ie the connection must always have a so-called female and male teasing. In addition, the shell joint can only be measured in the direction transverse to the joint and the pieces must be fastened in the longitudinal direction of the joint with separate fastening members. Instead of a joint, the boards and ... other upholstery materials can be assembled into larger levels by joining them together with different fasteners on the back of the level. This method of joining is best suited for joining load-bearing upholstery materials.

To date, there has been no system that can be used to connect several table levels without special fasteners. Usually, in exhibition spaces, meetings, restaurants and similar public spaces where different sizes of Poy are required, the required table is assembled by placing the required number of individual tables in parallel. Poyti are usually not attached to each other, which causes many problems. If the floor of the space to be used is slightly uneven, the decks of the parallel boards 5 are in different levels and all the boards swing easily if the legs of one of the boards are not on a flat surface. The oscillation of the buoys can be corrected with the weather sheds, if there are any in the furniture, but the shed work is awkward and slow, and the decks of the sheds cannot necessarily be brought to the same level.

10 In larger boards assembled from ordinary boards, each unit has a board level and supporting legs, which is often unnecessary in terms of load-bearing capacity. The legs of the table also take up space between the tables and make it difficult to position them around the table. It is difficult to move large desktop systems, because each table must be moved separately and the whole system must then be assembled in a new location. Storage of pedestals is cumbersome and requires a lot of space. In rooms where a large number of tables is required from time to time, there must be a sufficient number of table units in place, even for a great need. Although such sites often use tables that can be stacked at least partially on top of each other, the storage of the tables and their handling when modifying the premises is cumbersome.

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If a stable system is desired, the tables must be fastened to each other with separate fasteners. The fasteners can be attached to the table top or to the table legs. The fasteners are left on the table tops and require tools and a lot of time to install. The fasteners attached to the legs of the table do not necessarily guarantee that the table tops are level. If you want to connect corner pieces or other accessories or accessories to such table tops, they must be fastened with separate fasteners.

The object of the present invention is to provide a joining method by means of which level-3 0-shaped pieces can be fastened to each other without separate fasteners and in which all the parts to be joined to each other are preferably of the same shape.

3 92369

The invention is based on forming at least two parallel meandering curves running at the edge of the plate at the edge of each piece to be joined, one of which forms a basic curve and at least one of which is displaced in the longitudinal direction of the seam so that there is a phase difference between the grooves. When connecting the parts 5, the peaks of the adjacent bodies are placed in the Laaks of the opposite body, whereby a longitudinally and transversely form-fitting joint is formed.

More specifically, the method according to the invention is characterized by what is set forth in the characterizing part of claim 1.

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The joint according to the invention is in turn characterized by what is set forth in the characterizing part of claim 3.

The body according to the invention, in turn, is characterized by what is set forth in the characterizing part of claim 15.

The invention provides considerable advantages.

By means of the method according to the invention, it is possible to connect plates and 20 other pieces to each other without separate fasteners or connecting members. All the pieces to be joined can be made completely symmetrical, in which case only one type of piece is needed, which can be completely freely attached to a similar piece on any edge. The joint is form-fitting both in the direction of the longitudinal axis of the joint and in the directions transverse thereto. Thus, the level 25 made of the plates according to the invention carries a load even if not all the plates are supported against the load. This makes it possible to make table tops which can be easily connected to one another and which make it possible to assemble large board systems without the use of separate connecting pieces. Only a few leg sections are needed for the buoys and the legless table tops or deck sections rest on the edges of the leg table units. Footless additional plates are easy to store in a small space when they are not needed and when large tables are needed, it is easy to connect the levels to the legs. For example, in schools, pupils can, if necessary, modify the classroom arrangement differently, even for each hour, depending on whether group work or individual desks are needed. Angle and arc pieces can be used to assemble table solutions of different shapes. In the same way, for example, roof coverings can be assembled, which are attached to the support structures only in a small amount.

The surfaces of the planes to be assembled are exactly on the same level and no disturbing height differences can occur. In addition to connecting table tops and other planar pieces, the invention makes it possible to connect, for example, chairs and other furniture 10, for example by fitting the connection to an armrest or the like.

The invention is explained in more detail below with the aid of the accompanying drawings.

Figures 1 to 4 show different shapes of plates suitable for carrying out the invention. 15

Figure 5 shows a side view of one joint according to the invention.

Figure 6 shows a detector system implemented with the invention.

20 Figure 1 shows one plate according to the invention. The plate consists of plate plate 1 itself and a joint surface that rotates around its edges. The connection surface, in turn, in the case of Fig. 1 consists of two parallel sinusoidal waves 2 and 3 orbiting the edge of the plate plane 1. In the following description, the wave 2 closest to the viewer is called the basic arc and the wave behind it is called the the part of the arc formed by one vertex 4 and one valley 5 is called the shape period M. The basic arc 2 begins at vertex 4 at the angle A of the plate plane and continues as a regular sine wave to the planes B and C of the plane, where the arc ends in the valley part 5. 2 continues to the angle A to the opposite angle-30 to the country D, where it ends at the apex. The displaced arc 3 begins at angle A as a valley and continues to parallel angles B and C and ends at their apex. Correspondingly, the displaced 92369 5 arc 3 ends at the opposite corner D as a valley. There is thus a phase shift between curves 2 and 3.

The length of the previous phase shift is half a wave. When using a half-wave phase shifter Toa, two basic arc and transferred arc three zero points can be fitted to the disk plane May 1 corners. When the dimensions of the sides of the plate plane 1 are selected as multiples of the wavelength, a completely symmetrical plate part according to Fig. 1 can be produced. Such a plate part can always be connected to a similar part, so only one type of parts is needed to make even large levels.

Fig. 5 is a cross-sectional view of the plate plane 1 of Fig. 1 connected to a similar plate plane. It can be seen from this figure how the basic arc 2 and the displaced arc 3 are placed one on top of the other at the joint point and thus form a joint which bears well the load on the plate plane. The alignment of the plates 1 is ensured by a quick connection consisting of a protrusion 15 6 on the outer edge of each arch 2, 3 and a recess 7 corresponding to the protrusion on the inner edge of the arch. The height of the protrusion 6 is correspondingly easily detached from each other. The quick locking of the plates is an optional feature of the invention and can be implemented in many ways or omitted altogether, whereby the opposite parts of the arches 2, 3 are flat.

20 0 An alternative method of locking can be implemented by shaping at least the second arc so that the arc bends slightly inwards from the surface defined by the arc in the direction of the seam. If a recess is now made in the second arc and a protrusion of a corresponding shape is formed in the parallel arc, the plate is still symmetrical and can be joined to another plate having a corresponding edge shape and which is a circumferential circle around the connecting arms 25. In this case, the recesses and projections at the edges of the plates are aligned and form a locking connection.

Figures 1, 2, 3 and 4 show different edge shapes of the plate 1. The following are some examples of plate sizing with reference to these figures. The plate of Fig. 1 3 0 can be dimensioned, for example, by selecting 160 mm as the edge division, i.e. the wavelength of the arcs, whereby the wavelength of the sides is multiplied by a wavelength of 6 92369 na 800 x 640 mm. In the plate of Figure 2, the edge division is slightly denser, 100 mm, whereby the dimensions of the sides can be chosen to be multiples of 100 mm, for example 600 x 800 mm. In the plate of Fig. 3 the division is 200 mm and the dimensions of the sides are again 600 x 800. The plate of Fig. 4 has the same dimensioning as the plate of Fig. 2, but here the shape of the edge is chosen to be more angular.

As can be seen from the above examples, the choice of the shape of the base plates 1 and the edge can be made quite freely within the scope of the invention. In principle, any shape can be selected as the shape of the edge curves, and the curves can even have different shapes. In this case, however, it is necessary to produce different plates which are fitted in pairs. According to the invention, the most advantageous solution is to use two regularly periodic patterns in the form of an edge, which are placed on the edge half a wave with the center offset and the dimension of the edge of the plate is taken as a multiple of the wavelength of the pattern. In this case, integer multiples are most advantageous.

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The joint pattern can also be made only for a part of the edge of the plate, but in this case at least some of the plates must have a cut or relief to which the parts of the plates in which the joint form has not been formed correspond. In order to obtain a holding joint, the length of the joint pattern must be at least one shape period M. The joint pattern can be formed from several arcs. One preferred conceivable embodiment consists of three arcs, two of which are basic arcs running in the same phase. The transferred arc is placed between the basic arcs, whereby the basic arcs close between the transferred arcs.

2 5 Plate parts such as those described above can be manufactured in many ways and the method of manufacture ... depends essentially on the material to be used. One preferred manufacturing method is to cast an edge shape in a mold onto the edge of the chipboard. The edge shape can be made by milling with a milling blade or two plates of the same shape can be used, which are otherwise glued or fastened to each other so that a 3 0 phase shift is obtained at the edge. The phase shift is accomplished simply by rotating the plate 180 ° about its longitudinal or transverse axis. If plastic, concrete is used as the manufacturing material

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7 92369 or an equivalent easily castable material, it is preferable to make the entire sheet by casting.

Figure 6 shows a plate plane formed by plate parts 5 according to the invention. For the sake of clarity, plates of different sizes have been used to form this level. The plate plane of Fig. 6, which could be, for example, a table, is formed of a system with an edge shape division of 100 mm and the dimensions of the base plane sides 600 x 800 mm, whereby the aspect ratio becomes 3: 4. The dimensions of the other plate sections are determined as multiples of the division. The table of Figure 6 is assembled by connecting to the base plane 9 with a corner piece 10 10 (600 x 800 x 1000) a large plane 8 (1200 x 800). Attached to the end of the large plane 8 is an equilateral triangular body 12, with which an angle of 45 ° can be formed if necessary. An additional level 11 (800 x 300) consisting of a basic half is connected to the long side of the basic level 9. The structure of Figure 6 is suitable, for example, as an office desk.

The formation of different planar structures by the method according to the invention is very simple. First, of course, it is necessary to make at least two plates according to the invention which can be joined together. Next, the edges of the plates are arranged opposite each other so that the peaks 4 of the basic arch 2 of the first plate are located at the valleys 5 of the basic arch 2 of the second plate. In this case, the valleys 5 and the peaks 20 4 of the displaced arc are naturally opposite in the same way. It should be noted that the edges of the plates do not have to face each other all the way, in principle it is sufficient that the plates are connected to each other for only one wavelength. It is often preferred that the seams of the plates are not exactly aligned but the seams form a lattice in which a parallel plate supports a transverse seam between adjacent plates. When the plates are aligned as desired, their edges are pressed together and the joint is complete.

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As will be apparent from the foregoing description, the present invention has several embodiments and uses. The invention can therefore be applied to many embodiments on the basis of the examples given within the scope of the following claims. The pieces to be joined do not necessarily have to be planar, but the surface of the piece 8 92569 can extend, for example, into a spherical surface from the plane of the joint surfaces. The surface may advantageously have various decorative patterns and the like.

Claims (17)

92369 Patent Requirements: A method for joining pieces together, wherein the pieces (1) are joined together via a special joint surface, characterized in that a first joint pattern consisting of: - a basic arc (2) is formed on one edge of at least one joint piece (1) to be joined; forming at least one longitudinal section (M) running along the edge of the body, consisting of a peak (4) projecting from the edge of the body and a valley (5) projecting towards the interior of the body, - at least one adjacent to the base arc (2) parallel to the edge of the body a displaced arc (3) forming at least one of the shape periods (M), which is displaced relative to the base arc (2) so that its apex (4) is at least partially located at the valley (5) of the base period (2) and the valley (4), 20 - at least one second body is formed of a base arc (2) and at least one a second connection pattern of the displaced arc (3), the shape of which corresponds to the shape of the first connection pattern so that the connection patterns can be matched to engage each other, and the connection patterns of the 25 ·: · pieces are matched to form a connection. A method according to claim 1 for joining planar, straight-edged bodies (1), characterized by 11 u of them. that a joint pattern is formed at each edge of each body to be connected, consisting of a basic arc (2) determined by a periodic periodic function 92369 and a shifted arc (3) determined by the same function, which is shifted half a wavelength into the basic arc (2). 3. A joint for joining two pieces at their edges, characterized by 11 u 5 - a first joining pattern consisting of: - a basic arc (2) forming at least one longitudinal section (M) running along the edge of the piece, consisting of a protrusion 10 at least one of the displaced arcs (3) 15 formed parallel to the edge of the body and forming at least one shape section (M) adjacent to the edge of the body (2) and displaced into the base arch (2) such that its apex (4) is located at least partially at the valley (5) of the base period (2) and the valley at the peak (4) of the base period, respectively, 0. a second connecting pattern consisting of a basic arc (2) and at least one displaced arc (3), the shape corresponds to the shape of the first joint pattern • · so that the joint patterns can be adapted to interlock with the joint sex. A joint according to claim 3, characterized in that the basic arc (2) and the displaced arc (3) follow the same regular periodic function. Joint according to Claim 4, characterized in that the displaced arc (3) is displaced by half the wavelength with respect to the basic arc (2). 30 Joint according to Claim 4 or 5, characterized in that the arcs (2, 92569 3) follow a periodic step function. Joint according to Claim 4 or 5, characterized in that the arcs (2, 3) follow a sine function. 8. A coupling with a joint pattern which can be joined to another body with a similar joint pattern, characterized in that the joint pattern consists of - a basic arc (2) forming at least 10 longitudinal shapes (M) at the edge of the body (1) ), consisting of a peak (4) projecting from the edge of the body and a valley (5) extending towards the interior of the body with respect to the apex, - at least one shape section (M) formed parallel to the edge of the body (1) adjacent to the basic arc (2) - a newly displaced arc (3) displaced with respect to the basic arc (2) such that its apex (4) is located at least partially at the valley (5) of the base period (2) and the valley at the peak (4) of the base period, respectively. 20 A body according to claim 8, characterized in that the basic arc (2) and the displaced arc (3) follow the same regular periodic function. Body according to Claim 8, characterized in that the displaced arc (3) is displaced by half the wavelength with respect to the basic arc (2). • I · Planar body according to Claim 9 or 10, characterized in that a joint pattern is formed on all edges of the body (1). 3 0 12. A planar body according to claim 11, characterized in that the zero points of the arcs (2, 3) are arranged to hit the corners (A, B, C, D) of the body. 92369 Body according to one of Claims 8 to 12, characterized in that the connecting pattern consists of a basic arc (2) and one displaced arc (3). Body according to one of Claims 8 to 12, characterized in that the connecting pattern 5 consists of a basic arc (2) and two displaced arcs (3) arranged on both sides of the basic arc (2). Body according to one of Claims 8 to 14, characterized in that the arcs (2, 3) follow a periodic step function. 10 Body according to one of Claims 8 to 14, characterized in that the arcs (2, 3) follow a sine function. Use of a body according to claim 8 for forming surfaces consisting of a plurality of such bodies 15. «·« «92369