EP3508679B1

EP3508679B1 - Connecting element for a frame and method for manufacture thereof

Info

Publication number: EP3508679B1
Application number: EP19150721.9A
Authority: EP
Inventors: Jan Gerrit Kreunen; Robert Lemson
Original assignee: Innodeen BV
Current assignee: Innodeen Bv
Priority date: 2018-01-09
Filing date: 2019-01-08
Publication date: 2023-12-27
Anticipated expiration: 2039-01-08
Also published as: NL2020252B1; PL3508679T3; EP3508679A1; DK3508679T3

Description

The invention relates to a connecting element for providing a connection between a sill and a jamb of a frame.
A sill is a substantially horizontal beam of a frame for a door or window. A jamb is a substantially vertical post of such a frame. In order to have the sill and the jamb fit together properly and to connect them to each other a connecting element can be provided, which connecting element is arranged between the sill and the jamb and is connected thereto. Such a connecting element is per se known. An example of such a connecting element is a so-called plinth block.
In order to provide a watertight and/or airtight seal between the connecting element and the jamb it is possible to arrange a sealing element, also referred to as a flashing, therebetween.
Such a connecting element with seal is for instance known from EP1163416B1 or EP1659253 B1 of the present applicant.
Plinth blocks are also known from NL 6906307 , which discloses a ring-shaped seal on top of the plinth block in figure 5. Another type of seal on a plinth block is known from WO 00/58589 . In both cases, the seal is a separate element interposed between the plinth block and a jamb.
It is an object of the invention to improve the connecting element of the type stated in the preamble.
This object is achieved with a connecting element with the features of claim 1. According to the invention the connecting element comprises a first part with first material properties and a second part with second material properties, which second material properties differ from the first material properties, and wherein the second part is connected inseparably to the first part.
An advantage of the connecting element according to the invention is that the first part and the second part are unable to move relative to each other, in particular unable to move in a substantially lateral direction, due to the inseparable connection therebetween. The first part and the second part hereby remain positioned correctly relative to each other during for instance installation of the frame. The inseparable connection can additionally or alternatively provide a substantially watertight and/or airtight connection between the first part and the second part.
The term inseparable is in this application understood to mean at least that the first part and the second part cannot be separated from each other without damaging the first part and/or the second part.
It is noted that the inseparable connection can alternatively or additionally be described as the first part and the second part forming one integral whole.
It is noted that the inseparable connection can alternatively or additionally be described as the second part being integrated with the first part.
The connecting element according to the invention can particularly be suitable for different types of frame, such as for instance both hollow and solid frames, and frames of different types of material.
The connecting element is formed from an inseparable, composite material, which composite material is composed of a first base material with the first material properties for forming the first part and a second base material with the second material properties for forming the second part.
Because the connecting element is formed from such a composite material, the first part and the second part can be formed simultaneously and/or jointly and/or in one production step, where before, the connecting element and the seal would have to be made separately of each other in multiple steps and/or with multiple operations. Furthermore, no separate processing means need be provided here for the purpose of forming or manufacturing the first part and the second part, whereby costs can be saved.
Alternatively or additionally, no relative displacements are possible between the first and the second part, whereby the shapes are adapted to each other well.
Connecting elements are made in many different shapes. The seal is usually die-cut into a correct shape. Due to the large number of different shapes of the connecting elements, it is however expensive to provide a separate cutting die for each shape. It is hereby often the case that the seal, which may or may not have already been die-cut into a basic shape, is cut additionally after being arranged on the connecting element. This is very labour-intensive and/or prone to errors and/or can result in undesired leakage of air, and is no longer necessary in the composite connecting element according to the invention.
It is noted that the composite material is thus composed prior to the connecting element being manufactured therefrom.
The composite material can particularly be a solid material.
The second part forms a seal between the first part and the jamb.
The seal formed by the second part is particularly a moisture-tight and/or airtight seal.
In another embodiment of the connecting element according to the invention the first part is substantially non-compressible and the second part is compressible to at least some extent.
The non-compressible first part can form a strong transition or connection between the sill and the jamb. The term non-compressible is here understood to mean that the first part is non-compressible with the exertion of normal forces which are exerted on such a connecting element between a sill and a frame, for instance during installation of the frame or in a situation in which the frame has been installed in a building. The second part is compressible to at least some extent, whereby a moisture-tight and/or airtight seal can be formed.
The first part can particularly have a hardness chosen between shore D50 and D90.
The second part can particularly have a hardness chosen between shore A25 and A75.
The first part can be manufactured from any suitable material, such as for instance from polyvinyl chloride (PVC), a polyolefin plastic such as for instance so-called Low Density Polyethylene (LDPE), Linear Low Density Polyethylene (LLDPE), High Density Polyethylene (HDPE), High Molecular Weight Polyethylene (HMWPE) or Ultra High Molecular Weight Polyethylene (UHMWPE), polypropylene (PP) or any random combination thereof.
The second part can be manufactured from any suitable material, such as for instance an olefin-based thermoplastic elastomer (TPE), such as EPDM, or a urethane-based TPE, or a rubber.
It has been found by applicant that, although the invention is not limited hereto, an HMWPE with a shore D64 hardness and a specific weight of 0.95 g/cm³ can particularly be a suitable material for the first part.
It has been found by applicant that, although the invention is not limited hereto, a TPE with a shore A57 hardness and a specific weight of 1.16 g/cm³ can particularly be a suitable material for the second part.
The thickness of the first part and/or the second part can be chosen as desired. A thickness of the second part can particularly be smaller than the thickness of the first part. More particularly, a thickness of the first part can for instance be chosen between 5 mm and 300 mm and/or a thickness of the second part can for instance be chosen between 1 mm and 5 mm.
The thickness is here defined in a direction from the sill to the jamb in use of the connecting element.
The invention likewise relates to a frame as defined in claim 8, which comprises a sill and at least one jamb, wherein arranged between the sill and the at least one jamb is at least one connecting element according to any one of the claims, which at least one connecting element is connected to the sill and the at least one jamb, and wherein the first part of the at least one connecting element is directed toward the sill and the second part of the connecting element is directed toward the at least one jamb.
In a practical manner such a frame can comprise at least two jambs and at least two connecting elements according to the invention, wherein one connecting element in each case forms the connection between one jamb and the sill.
In a practical manner such a frame can also comprise a substantially horizontal head element, which mutually connects the at least two jambs on their upper side.
In a practical manner the at least one connecting element can be connected to the sill and the at least one jamb by means of per se known connecting means, such as for instance screws and/or nails and/or plugs and/or glue.
The sill and/or the at least one jamb of the frame can take a solid or hollow form, for instance the form of a hollow profile.
The sill and/or the at least one jamb of the frame can be manufactured from any suitable and/or desired material.
The material from which the sill is manufactured can be the same as or different than the material from which the at least one jamb is manufactured.
The sill can for instance be manufactured from material containing wood, such as solid wood, composite wood, compressed wood fibres, or from plastic, such as thermoplastic or thermosetting plastic, or from metal, such as aluminium, or from a stone-like material, such as natural stone, artificial stone, concrete or composite stone, or from a composite material, or any random combination thereof.
The at least one jamb can for instance be manufactured from material containing wood, such as solid wood, composite wood, compressed wood fibres, or from plastic, such as thermoplastic or thermosetting plastic, or from metal, such as aluminium, or from a stone-like material, such as natural stone, artificial stone, concrete or composite stone, or from a composite material, or any random combination thereof.
The invention also relates to a method as described in claim 9, which is a method for manufacturing a connecting element defined in the claims, comprising the following steps, to be performed in any suitable order, of:

(a) providing a first base material with first material properties;
(b) providing a second base material with second material properties, which second material properties differ from the first material properties;
(c) integrally connecting the first base material and the second base material into an inseparable, composite material;
(d), to be performed after step (c), manufacturing a connecting element from the composite material.

Step (c) is performed by pressing the first base material and the second base material together in an optionally heated mould. The pressing can provide a good and/or strong adhesion between the first base material and the second base material, whereby the inseparable connection therebetween is formed. Because of the pressing it is the case that the second base material is pressed into the first base material to some extent, i.e. is emulsified therein. The first base material can particularly be pressed onto the second base material.
In order to increase the adhesion between the first base material and the second base material one or both connecting surfaces of the first base material and the second base material which are connected to each other are relatively rough and, in particular, not smooth or flat. The connecting surface of the first base material and/or the connecting surface of the second base material can for instance have a surface roughness varying between 20 µm and 3000 µm.
Step (d) can for instance be performed by cutting and/or sawing and/or machining and/or milling a connecting element with a desired shape from the composite material.
The invention will be further elucidated with reference to figures shown in a drawing, in which:

figure 1 shows a perspective schematic view of the mounting of a connecting element according to the invention between a sill and a jamb;
figures 2A and 2B show the connecting element of figure 1 in more detail in a perspective schematic view (figure 2A) and a schematic cross-section in the thickness direction (figure 2B);
figures 3A and 3B show schematically a number of connecting elements according to different embodiments mounted on a first type of sill (figure 3A) and on a second type of sill (figure 3B); and
figures 4A and 4B show schematically two types of sill.

In the figures the same elements are designated with the same reference numerals, increased by hundreds for other exemplary embodiments thereof.
Figure 1 shows a sill 1 and a jamb 2. As can be seen in figure 1, in this example sill 1 has an upper surface which is not flat and not horizontal, while jamb 2 has a substantially flat and horizontal lower surface. A connecting element 3 is therefore arranged therebetween in order to provide a good fit between jamb 2 and sill 1. The shape of the underside of connecting element 3 is for this purpose adapted to the upper side of sill 1, and the shape of the upper side of the connecting element is adapted to the underside of jamb 2.
In accordance with the invention, connecting element 3 has a first part 4 and a second part 5. First part 4 is substantially hard and non-compressible so that it can form a good and/or strong connection between sill 1 and jamb 2, while the second part 5 is compressible to some extent in order to form a moisture-tight and/or airtight seal between connecting element 3 and jamb 2. First part 4 and second part 5 are connected inseparably to each other, i.e. formed integrally as one whole.
In figure 1 continuous holes 8 and 9 are visible in respectively sill 1 and connecting element 3, which are provided in this exemplary embodiment but can be dispensed with if desired. In this exemplary embodiment jamb 2 likewise has holes, which can also be dispensed with if desired, but which are not visible in figure 1. During assembly of the frame the holes of sill 1, connecting element 3 and jamb 2 provided in this example are in register with each other so that plugs 6 and screws 7 can be arranged therein for the purpose of mutually connecting sill 1, connecting element 3 and jamb 2.
Figures 2A and 2B show connecting element 3 in more detail. The cross-section in thickness direction of figure 2B shows that a boundary layer 10 between connecting surfaces 11, 12 of first part 4 and second part 5 is not flat and/or smooth. This is caused in that, when a second base material which will form second part 5 is pressed onto a first base material which will form first part 4, the second base material is pressed into the first base material to some extent. This may additionally be caused in that the connecting surface 12 of first part 4 and/or the connecting surface 11 of second part 5 is rough. The cross-section in thickness direction of figure 2B further shows that a thickness di of first part 4 is greater than a thickness d₂ of second part 5.
Figure 3A shows a solid sill 101. The solid sill 101 can for instance be manufactured from a stone-like material, a composite material or a plastic material. Three connecting elements 103, 203 and 303 according to different embodiments are arranged on sill 101. The three different connecting elements 103, 203 and 303 in particular each have a different shape. Connecting element 303 is thinner than the connecting elements 103 and 203. In accordance with the invention, each connecting element 103, 203 and 303 comprises a respective first part 104, 204, 304 and second part 105, 205, 305.
Figure 3B shows the same connecting elements 103, 203, 303 as in figure 3A, but arranged on a different type of sill 201. Sill 201 is hollow, in particular manufactured from a hollow profile. Sill 201 can for instance be manufactured from plastic, such as plastic PVC or fibre-reinforced plastic, or from metal, such as aluminium or steel.
Figures 3A and 3B show that both solid sills as in figure 3A and hollow sills as in figure 3B are suitable for connection to a connecting element according to the invention.
Figures 3A and 3B further show that connecting elements 103, 203, 303 can further have both a width equal to the width of sill 101, 201, i.e. connecting element 103, and a width smaller than the width of the sill 101, 201, i.e. connecting elements 203, 303. Connecting element 103 extends here over the whole width of sill 101, 201 and connecting elements 203, 303 extend over a part of the width of sill 101, 201.
Figures 4A and 4B show two different types of jamb 102, 202, which can be connected to a sill via connecting elements according to the invention. This shows that both solid jambs as in figure 4A and hollow jambs as in figure 4B are suitable for connection to a connecting element according to the invention. Jambs 102, 202 can for instance be manufactured from wood, plastic, such as plastic PVC or fibre-reinforced plastic, or from metal, such as aluminium or steel.
It is noted that the invention is not limited to the above discussed exemplary embodiments but also extends to other variants within the scope of the appended claims.

Claims

Connecting element (3) for providing a connection between a sill (1) and a jamb (2) of a frame, which connecting element (3) comprises a first part (4) with first material properties and a second part (5) with second material properties, which second material properties differ from the first material properties,
wherein the second part (5) is connected inseparably to the first part (4), so that the first part (4) and the second part (5) cannot be separated from each other without damaging the first part (4) and/or the second part (5),

wherein the second part (5) is adapted to form a seal between the first part (4) and the jamb (2),

wherein the connecting element (3) is formed from an inseparable, composite material, which composite material is composed of a first base material with the first material properties for forming the first part (4) and a second base material with the second material properties for forming the second part (5),

wherein a boundary layer between connecting surfaces of the first part (4) and the second part (5) is not flat and/or smooth, because, during composing of the composite material, when the second base material is pressed onto the first base material, the second base material is pressed into the first base material to some extent.
Connecting element (3) according to claim 1, wherein no relative displacements are possible between the first (4) and the second part (5), whereby the shapes are adapted to each other well.
Connecting element (3) according to any one of the foregoing claims, wherein the first part (4) is substantially non-compressible and the second part (5) is compressible to at least some extent.
Connecting element (3) according to any one of the foregoing claims, wherein the first part (4) has a hardness chosen between shore D50 and D90.
Connecting element (3) according to any one of the foregoing claims, wherein the second part (5) has a hardness chosen between shore A40 and A70.
Connecting element (3) according to any one of the foregoing claims, wherein the first part (4) is manufactured from a material chosen from the group comprising polyvinyl chloride (PVC), a polyolefin plastic such as for instance so-called Low Density Polyethylene (LDPE), Linear Low Density Polyethylene (LLDPE), High Density Polyethylene (HDPE), High Molecular Weight Polyethylene (HMWPE) or Ultra High Molecular Weight Polyethylene (UHMWPE), polypropylene (PP) or any random combination thereof.
Connecting element (3) according to any one of the foregoing claims, wherein the second part (5) is manufactured from an olefin-based thermoplastic elastomer (TPE), such as EPDM, or a urethane-based TPE, or a rubber.
Frame, comprising a sill (1) and at least one jamb (2), wherein arranged between the sill (1) and the at least one jamb (2) is at least one connecting element (3) according to any one of the claims 1-7, which at least one connecting element (3) is connected to the sill (1) and the at least one jamb (2), and wherein the first part (4) of the at least one connecting element (3) is directed toward the sill (1) and the second part (5) of the connecting element (3) is directed toward the at least one jamb (2).
Method for manufacturing a connecting element (3) according to any one of the foregoing claims 1-7, comprising the following steps, to be performed in any suitable order, of:
(a) providing a first base material with first material properties;

(b) providing a second base material with second material properties, which second material properties differ from the first material properties;

(c) integrally connecting the first base material and the second base material into an inseparable, composite material;

(d), to be performed after step (c), manufacturing a connecting element (3) from the composite material, wherein step (c) is performed by pressing the first base material and the second base material together.
Method according to claim 9, wherein step (d) is performed by cutting and/or sawing and/or machining and/or milling a connecting element (3) with a desired shape from the composite material.