Opening and its preparation process, together incorporating such an opening

Abstract

An opening (1) in the form of a panel comprising: - a peripheral edge (2), - two facings (3) extending on either side of the peripheral edge (2), and - a base (4) disposed between said facings (3), said base (4) being made of a material whose pull-out resistance is less than that of wood, the peripheral edge (2) being formed at least partially by a portion of the perimeter of the base (4) and / or a portion of an element (9) attached around said base (4). To allow the fixing of hardware (20), the opening (1) is provided with at least one wooden cylinder (5) extending from the edge (2) towards the center of the base (4), said cylinder (5) being provided with an axial hole, called a pilot hole (6), opening into the edge (2) of the opening (1). Figure for the abbreviation: Fig. 1

Description

Title of the invention: Opening and its preparation method, an assembly integrating such an opening

[0001] The present invention relates to an opening to which a fixing is suitable for fixing, an assembly integrating such an opening, and a method for preparing such an opening.

[0002] It relates in particular to an opening in the form of a panel comprising: - a peripheral chant, - two facings extending on either side of the peripheral edge and - a base, also called the core, arranged between the said facings, said base being made of a material whose resistance to tearing is less than wood, the peripheral edge being formed by a part of the perimeter of the base and / or a part of an element, also called an edge band, attached around said base.

[0003] Such an opening, intended for example to form a door leaf, is known. Such an opening must frequently be fitted with hardware, such as a hinge, pivots, a handle faceplate, or the like. It frequently happens that the base, also called the core, of the panel constituting said opening is made of particleboard, cardboard, glass, or foam. In this case, the material constituting the base has a pull-out resistance lower than that of wood, that is to say, a pull-out resistance of less than 100 daN. Pull-out resistance is measured in accordance with French standards NF P 23-311 and NF EN 320. Similarly, it frequently happens that the base of such a panel is without a edging, that is to say a "hard" wood edge which extends around the base on at least part of the perimeter of the base, or that the thickness of this edging is insufficient.This is particularly the case when a door is refurbished. Such refurbishment involves at least removing the hardware and the two facings, and trimming the door on all four sides, which leads to a thinning or even the disappearance of the edge band. In this case, attaching new hardware does not provide the desired mechanical strength.

[0004] An object of the invention is to propose an opening of the aforementioned type whose design allows the fixing of hardware with sufficient mechanical resistance to pull-out without compromising the simplicity of implementation of the fixing.

[0005] To this end, the invention relates to an opening in the form of a panel comprising: - a peripheral edge, - two facings extending on either side of the peripheral edge, and - a base disposed between said facings, said base being made of a material whose pull-out resistance is lower than that of wood, the peripheral edge being formed at least partially by a part of the perimeter of the base and / or a part of an element added around said base, characterized in that, to allow the fixing of hardware, the opening is provided with at least one wooden cylinder extending from the edge towards the center of the base, said cylinder being provided with an axial drilling, called a pre-hole, opening into the edge of the opening.

[0006] Inserting a wooden cylinder into the edge of the panel, with the cylinder extending from the edge towards the core of the base, also known as the panel's core, allows this cylinder to be used for screwing hardware to the panel. It is thus possible to use remanufactured door panels with the panel's edge formed either with an added element, also known as an edge strip, whose thickness is reduced due to the remanufacturing, or with a material that is the same as the core. In both cases, traditional screw fixing into the edge is not possible, and the presence of a cylinder with a pre-drilled hole allows for simple screw fixing with the required mechanical strength.

[0007] According to one embodiment of the invention, the cylinder is coated externally with glue on at least part of its surface.

[0008] According to one embodiment of the invention, the cylinder is provided externally with longitudinal grooves.

[0009] According to one embodiment of the invention, the opening is a door opening.

[0010] The invention also relates to an assembly comprising at least one opening and a fixed frame into which the opening part is able to fit at least partially, characterized in that the opening part conforms to that described above.

[0011] The invention also relates to a method for preparing an opening in the form of a panel to allow the fixing of hardware, said opening comprising: - a peripheral edge, - two facings extending on either side of the edge and - a base arranged between said facings, said base being made of a material whose resistance to pull-out is less than that of wood, the edge being formed by a part of the perimeter of the base and / or a part of an element attached to said base, characterized in that the process includes a step of inserting at least one wooden cylinder into at least one hole in the edge of the opening to a position in which the cylinder extends from the edge towards the heart of the base, and - a step of axially drilling said cylinder from the edge of the opening to obtain an axial hole in the cylinder, called a pre-hole, opening into said edge.

[0012] According to one embodiment of the invention, the hole in the edge of the opening used to receive a cylinder has a diameter between 8 and 16 mm. Brief description of the drawings

[0013] The invention will be better understood upon reading the following description of exemplary embodiments, with reference to the accompanying drawings in which:

[0014] [Fig-1] represents a cross-sectional view of an assembly according to the invention;

[0015] [Fig.2] represents a cross-sectional view of an opening during the insertion step of a cylinder in a hole in the edge of the panel;

[0016] [Fig.3] represents a cross-sectional view of an opening in the inserted state of the cylinder in the edge of the opening and pierced with said cylinder associated with a detail view of the cylinder area;

[0017] [Fig.4] represents a perspective view of a glue-coated and drilled cylinder as it is when inserted into the edge of the opening panel.

[0018] The invention relates, as mentioned above, to an opening 1 such as a door opening 1, as illustrated in [Fig.1] where this opening is partially inserted into a frame 21 to form an assembly.

[0019] This opening 1 is in the form of a panel intended to be fitted with hardware 20, the nature of which may vary depending on the design of the opening 1.

[0020] In the example of [Fig. 1], the hardware comprises, along one of the longitudinal sides of the panel, a hinge with a tenon portion fixed to the sash and a tenonless portion fixed to the frame 21. This hardware 20 further comprises, along the opposite longitudinal side of the panel, hardware 20 formed by a handle faceplate. Obviously, any other type of hardware 20 adapted to the sashes and frames can be considered without departing from the scope of the invention.

[0021] This panel-type opening 1 comprises a base 4 forming the core of the opening panel. This base 4 is made of a material whose pull-out resistance is lower than that of wood, i.e., less than 100 daN, the pull-out resistance being measured according to the aforementioned standards. In the example shown, this base 4 is made of particleboard, also known as chipboard.

[0022] This base 4, which is in the form of a plate or a panel-type block with two opposing faces, is faced on each of these faces with a facing 3. This facing 3 can be formed by a decorative laminate plate. This facing allows the base 4 to be decorated.

[0023] The base 4 is thus arranged between the facings 3. This base 4 can be surrounded on part of its perimeter, in the area extending between said facings 3, by an added element 9, also called an edge band, which is generally made of a "hard" wood to form a reinforcing element.

[0024] In the example of [Fig.1], one of the longitudinal sides of the panel is, at the level of the base 4, equipped with an added element 9, while the opposite side is devoid of one.

[0025] Thus, in the example of [Fig.1], the part of the peripheral edge 2 of the opening panel between the two facings 3 is, along one longitudinal side of the panel, formed by the constituent material of the base 4 and, along the opposite longitudinal side, by an added element 9 of reduced thickness less than 30 mm, therefore insufficient to allow the direct fixing of hardware in said edge 2 by screwing.

[0026] The opening 1 is therefore, in order to allow the fixing of a hardware 20 to the opening 1, provided with at least one wooden cylinder 5 extending from the edge 2 towards the center of the base 4. Said cylinder 5 is provided with an axial drilling, called a pre-hole 6, opening into the edge 2 of the opening 1.

[0027] The detail of this wooden cylinder 5 is shown in [Fig.4]. Generally, this cylinder 5 has a length between 25 and 50 mm and a diameter between 8 and 16 mm.

[0028] This cylinder 5 can be provided externally with longitudinal grooves 8 and is fixed by gluing to the opening panel, so that the cylinder 5 is externally coated with glue 7 on at least part of its surface.

[0029] To allow the fixing of such a cylinder in the peripheral edge 2 of the opening 1, the following procedure is used:

[0030] The edge 2 of the opening is drilled at the level of a location on the edge 2 intended to receive a hardware 20. This drilling 10 of the edge 2 of the opening 1 used to receive a cylinder 5 has a diameter between 8 and 16 millimeters.

[0031] This bore 10 extends from the edge towards the center of the base over a length generally close to that of the cylinder.

[0032] The glue-coated cylinder 5 is inserted into said bore 10 until it extends completely inside said bore 10, as illustrated by the transition from [Fig.2] to [Fig.3],

[0033] This cylinder 5 is then drilled axially from the edge 2 of the opening 1 to obtain a pilot hole 6, as illustrated in [Fig. 3], into which a wood screw 22 can be inserted for fixing the hardware to said opening. Obviously, the opening is fitted with as many cylinders as necessary.

[0034] Such an assembly eliminates the need to add a strip to a sash that has been refurbished to allow for the attachment of hardware. The frame associated with such a sash can be similarly prepared for the attachment of hardware.

Claims

Demands

1. An opening (1) in the form of a panel comprising: - a peripheral edge (2), - two facings (3) extending on either side of the peripheral edge (2), and - a base (4) disposed between said facings (3), said base (4) being made of a material whose pull-out resistance is less than that of wood, the peripheral edge (2) being formed at least partially by a portion of the perimeter of the base (4) and a portion of an element (9) attached around said base (4), characterized in that, to allow the fixing of hardware (20), the opening (1) is provided with at least one wooden cylinder (5) extending from the edge (2) towards the center of the base (4), said cylinder (5) being provided with an axial hole, called a pilot hole (6), opening into the edge (2) of the opening (1), and in that the attached element (9), also called alaise, which surrounds the base (4) on part of its perimeter in the area extending between the facings (3),is made of a "hard" wood to form a reinforcing element.

2. Opening (1) according to claim 1, characterized in that the cylinder (5) is externally coated with glue (7) on at least a part of its surface.

3. Opening (1) according to one of claims 1 or 2, characterized in that the cylinder (5) is provided externally with longitudinal grooves (8).

4. Opening (1) according to any one of claims 1 to 3, characterized in that the opening (1) is a door opening.

5. Assembly comprising at least one opening (1) and a fixed (21) into which the opening (1) is able to fit at least partially, characterized in that the opening (1) conforms to one of claims 1 to 4.

6. A method for preparing a panel-shaped opening (1) to allow the attachment of hardware (20), said opening (1) comprising: - a peripheral edge (2), - two facings (3) extending on either side of the edge (2), and - a base (4) disposed between said facings (3), said base (4) being made of a material having a pull-out resistance inferior to that of wood, the edge (2) being formed by a part of the perimeter of the base (4) and a part of an element (9) attached to said base (4), characterized in that the attached element (9), also called an edge band, which surrounds the base (4) on a part of its perimeter in the area extending between the facings (3), is made of a "hard" wood to form a reinforcing element and in that the process includes a step of inserting at least one wooden cylinder (5) into at least one hole (10) in the edge (2) of the opening (1) to a position in which the cylinder (5) extends from the edge (2) towards the core of the base (4), and - an axial drilling step of said cylinder (5) from the edge (2) of the opening (1) to obtain an axial drilling of the cylinder, called a pilot hole (6), opening into said edge (2).

7. Method according to claim 6, characterized in that the drilling (10) of the edge (2) of the opening (1) used to receive a cylinder (5) has a diameter between 8 and 16 mm.

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