EE01532U1 - Fastener for connecting of porous materials - Google Patents

Abstract

Fastener for connecting of porous materials consists of horns, wherein each horn consists of two spiketooth elements placed one above the other, mirroring each other, and the horn is in its approximate centre connected to the horn next to it with a belt forming an integral fastener, consisting of several connected horns with a distance, and the fastener can have different flat or spatial shapes.

Description

Technical field

The invention belongs to the field of fastening devices, more specifically, the invention relates to a device for connecting wooden materials and/or other porous materials (and elements made from them).

State of the art

The load-bearing capacity and deformation of structures and elements made of wood and other porous materials largely depend on the connections of the elements. The aim of the present invention is to develop a fastening device for connecting wood and/or other porous materials and elements made of them. The fastening device simplifies the connection of large parts (e.g. wooden boards, logs) without a connection passing through the corresponding elements.

The thorn plate connection used in wooden structures is known (http://www.puuinfo.ee/artiklid/pdf/puuinfo_2005_1/Alar_Just_Puitkonstruktionide_ jiiited.pdf). The thorn plate is a metal plate with punched spikes on one side. The thorn plate is used as an element for connecting the nodes of wooden trusses and frames, which allows these structures to be manufactured mechanized. The thorn plates are installed on the connection from both sides using a special press. The disadvantage of this solution is that the thorn plates are installed on the outside of the connection between two elements and only nodes can be connected with it.

An oval fastening plate with double-sided spikes is known (http://sc02.alicdn.com/kf/HTB1XK8iQpXXXXaEaXXXq6xXFXXXh/Doubie-sidetooth-gang-truss-nail~plate.jpg), in which the spikes (teeth or teeth) are bent at right angles to the plate, alternately on one side and the other side of the plate (up and down). The disadvantage of this solution is that there is too wide a connecting strip (air gap) between the two parts to be connected and the spikes are not aligned with each other, which means that the connection of the parts connected with it is not very strong, because the spikes can easily bend/twist/break during use.

A multipurpose fastener is known (US3416821, Ray Laboratories, Inc., 17.12.1968), the element of which includes a flat connecting angle consisting of three plates and spikes arranged on two sides of the connecting plate in the same plane with it, with the spikes of the spikes directed horizontally outwards from the edges of the plates. The disadvantage of this solution is that it is used only for connecting the nodes of the elements.

A metal toothed ring connector (toothed ring connector "Alligator") is known (V. I. Telichenko et al., STRENGTHENING TECHNOLOGY OF TIMBER TRUSSES BY PATCH PLATES WITHTOOTHED-PLATE CONNECTORS, Journal of industrial Pollution Control, 04.06.2017), where the teeth are arranged alternately with the connecting parts and the teeth and the connecting parts form a spatial closed ring. The disadvantage of this solution is that the tips of the teeth are not sharp enough and the teeth are not long enough, and in order to attach the fastener, holes for the teeth must be drilled in advance in the material to be attached. Due to the mentioned features, the connection of the parts connected with it is not very strong, because the teeth do not penetrate deep enough into the material.

The closest analogue to the invention in terms of technical nature is (WO9966143, Rudduck Dickory, published 23.12.1999) a fastener, the sharp-pointed elements of which are the spikes, are arranged on two sides of the connecting plate (see figure 39), but they are not arranged in a straight line with each other. This solution also provides a connecting element with round spikes, the spikes of which are not directly connected in a straight line with each other (figure 27). Due to the mentioned features, the connection of the parts connected with it is not very strong, because the spikes can easily bend/twist/break during use.

The essence of the invention

The invention provides a fastening means for connecting two elements of wood or other porous material in a planar manner. The fastening means is attached to opposite sides of the elements to be connected in such a way that it does not penetrate the elements.

The presented fastening means comprises spikes, whereby the spike is an integral part consisting of a double-ended spike which is mirror image of each other. The spike is connected approximately in its middle part to an adjacent spike by a connecting belt or intermediate link,

thus forming a complete fastening device consisting of several spaced apart connected spikes, i.e. a spike belt (tape).

The fastening device is initially a flat strip made of sheet material that can be cut to the required length, or has a radially extending barb or an angular shape, or some other shape that is shaped into a three-dimensional shape in the working position. The flat initial position can also be the working position.

The spatial fastening means in the working position may have different shapes. The number and arrangement of the pins on the connecting belt may also vary. The pins may be arranged on the connecting belt at equal or unequal intervals or in a row/rows. The angle at which the pins protrude from the connecting belt may also vary.

List of drawings

Figure 1 shows an alternative embodiment of the fastening means as a flat tape;

Figure 2 shows the fastening device shown in Figure 1 as a three-dimensional ring, the connecting belt of which is interrupted at the end spikes;

Figure 3 shows yet another alternative embodiment of the fastening means in the form of a planar ring with radially extending spikes;

Figure 4 shows the fastener of Figure 3 formed into a three-dimensional ring with an uninterrupted connecting belt;

Figure 5 shows yet another alternative embodiment of a fastener with radially extending barbs in a planar angular shape;

Figure 6 shows the fastener shown in Figure 5, the shape of which is shaped into a three-dimensional angular shape, in which the barbs are arranged in rows on the fastener, including also inside the shape itself.

Examples of carrying out the invention

The fastening means consists of spikes, whereby the spike 1 consists of a double-ended, mirror-image spike, which is connected approximately in the middle of the spike 1 by a connecting belt 2 to the adjacent spike 1, thus forming a complete fastening means consisting of several spaced apart connected spikes.

In one embodiment, the fastener forms a flat strip (initial position, Figure 1), which can be cut if necessary, thus changing the number of prongs of the fastener and also bending the fastener into a special shape (e.g. S-shaped, Z-shaped, L-shaped, ring-shaped, etc.) into a three-dimensional fastener (working position).

For example, Figure 2 shows one possible working position of the fastening device shown in Figure 1, which is a three-dimensional ring with the connecting belt of the pins interrupted at the end pins of the shape.

In another embodiment, the fastening means forms a planar shape with radially extending spikes (initial position and also working position, see Figure 3).

For example, Figure 4 shows another working position of the fastener of Figure 3, which is a three-dimensional ring with the connecting belt of the prongs unbroken. The flat fastener of Figure 3 in the initial position can be converted into the three-dimensional ring in the working position of Figure 4 by pressing the inner prongs of the flat ring either down or up, resulting in the opposite prongs rising in the opposite direction either up or down.

In yet another embodiment, the fastening means forms an angular spatial shape (working position), in which the spikes 1 connected to each other by the connecting belt 2 are arranged in separate rows, which are additionally connected by an additional connecting element 3 (Fig. 6). The row of spikes can also be arranged inside the connecting element 3 (see Fig. 5).

The fastening means may have additional alternative shapes, as the tape can be formed into any shape.

The pins 1 on the fastener may be arranged on the connecting belt 2 at equal or unequal intervals.

The number of barbs 1 in the fastener is not predetermined and depends on the need for use.

The thickness of the connecting belt 2 is optimal to ensure that the elements fastened together by the fastening means are fastened as tightly as possible against each other.

Planar fasteners are manufactured (in the initial position) from sheet material using either stamping, pressing, cutting or other known techniques. The planar fasteners are then separated from the sheet material and spatial fasteners with different shapes and different numbers of pins are manufactured from them as needed (working position). The fastener may also remain planar in the working position.

The fastener is preferably made of metal (preferably e.g. aluminum or steel) or a substantially rigid plastic that can be easily processed (cut, bent, etc.) with appropriate cutters. The use of the material allows the fastener to be processed also when placed between already connected parts (e.g. when cutting in door or window openings).

The fastener is placed between two materials to be joined and/or elements made of them (e.g. boards, beams, logs, etc.) (on opposite sides of the materials to be joined), connecting them together with the fastener in such a way that the fastener does not penetrate them. The materials to be joined are pressed against the fastener with a compressive force, using equipment and working methods known in the art. The thickness of the materials to be joined is not important when using the fastener, since it is placed between the two materials to be joined.

The presented fastening device simplifies and speeds up the connection of large materials, and ensures financial savings. The fastening device holds the materials firmly in place relative to each other, as the double-ended barbs are placed opposite each other, which is why they do not break/bend and engage more strongly with the material being connected. The strength of the connection of the materials can be varied by changing the length, number of barbs or the external shape of the fastening device, as well as by adding an adhesive if necessary. Also, when using the fastening device, no attachment points (e.g. nail, bolt or screw heads, etc.) are visible on the outside of the material being connected, which allows the construction materials (elements) to be used more aesthetically. In addition, the fastening device allows for the connection of thicker materials that cannot be connected with conventional means or

which is difficult to connect (e.g. an aluminum nail does not penetrate thick material). Since it is not necessary to use glue or other connecting agent, the use of the fastener improves the breathability of the connected materials. The fasteners according to the invention can also be manufactured with extreme material economy, which consists in the low loss of sheet material.

The fastening device according to the invention can be used in construction as an alternative fastening solution, e.g. for wood adhesive elements. The fastening device is preferably used in the construction of log houses.

Claims (12)

1. A fastening device for connecting porous materials, comprising differently oriented, spaced-apart spikes (1), wherein the spike consists of two triangular-shaped parts and the spikes are interconnected by connecting parts, characterized in that each spike (1) consists of two mirror-image opposite spikes and the spike (1) is connected in its central part by a connecting belt (2) to an adjacent spike (1), wherein the fastening device is flat in the initial position and flat in the working position or has a changeable spatial shape, wherein the number of spikes (1) on the fastening device is variable. 2. A fastening means for joining porous materials according to claim 1, characterized in that it is a planar tape. 3. A fastening means for joining porous materials according to claim 1, characterized in that it is a planar ring. 4. A fastening means for connecting porous materials according to claim 1, characterized in that it is cuttable and bendable. 5. A fastening means for connecting porous materials according to claims 1 and 2, characterized in that it is interrupted by a connecting belt (2) in a three-dimensional shape. 6. A fastening means for connecting porous materials according to claim 5, characterized in that it is a three-dimensional ring with an interrupted connecting belt (2). 7. A fastening means for connecting porous materials according to claims 1 and 3, characterized in that it is a three-dimensional ring with an uninterrupted connecting belt (2). 8. A fastening means for joining porous materials according to claim 1, characterized in that it has an angular planar shape with radially extending spikes. 9. A fastening device for connecting porous materials according to claim 1 and 7, characterized in that it has an angular spatial shape with radially extending spikes, in which the spikes (1) connected to the connecting belt (2) are arranged in separate rows, which are additionally connected to an additional connecting element (3). 10. A fastening means for connecting porous materials according to claim 9, characterized in that the spikes (1) are additionally arranged in a row inside the shape bounded by the connecting element (3). 11. A fastening means for connecting porous materials according to claims 1-10, characterized in that it is made of metal. 12. A fastening means for connecting porous materials according to claims 1-10, characterized in that it is made of plastic.