UNIVERSAL FRAME FOR CONCEALED DOORS SUITABLE FOR INWARD AND OUTWARD OPENING CONFIGURATIONS AND RIGHT OR LEFT DOOR SWING

Abstract

A frame that addresses the identified technical problems and provides a universal construction system for concealed door frames that can be applied interchangeably to doors opening outward or inward, using only four structural components and without requiring any off-site preparation before installation.

Claims

1. A universal frame for concealed doors, suitable for inward and outward opening configurations and right- or left-hand door swing, the universal frame comprising: a profile (1) divided into sections by straight cuts having a complex rectangular cross-section with an open face on one of its sides, forming an internal channel (8) along interior walls and having tooth-shaped ribs (9) on exterior walls, the profile includes a projection (2) that extends from a main body of the profile (10) beyond a plane of an open face (11) and runs along edge of one of the sides, wherein the projection includes a first flat surface (12) facing the open face (11) of the profile, with a notch (13) in which a sealing strip (14) is inserted, and a second flat surface (15) facing outward from the frame (3), forming an angle between 90 and 135 relative to the first flat surface (12), a connecting element (4) for assembling profile sections (1) at a 90-degree angle, comprising a square prism-shaped body (24), wherein the prism base (18) has a length A1 equivalent to the height A2 of the profile (1), and the shorter side of the prism's lateral faces (19) has a length B1 equivalent to the width B2 of the profile (1), further comprising: a square projection (22) at one corner of one of the two prism bases (18), with a side length C1 matching the length C2 of the projection (2) of the profile, two tenons (23) located on the lateral faces of the prism (19), adjacent to the corner where the square projection (22) is positioned, with a cross-section matching the cross-section of the profile's channel (8), an adapter (5) positioned anywhere along the profile channel (8), remaining firmly attached to it, including a rectangular block whose width C1 and depth D1 essentially match the width C2 and depth D2 of the profile's channel cross-section (8), and whose length E1 is significantly greater than the length E2 of the hinge (6) to be used in the installation. The adapter includes a seating area (26) designed to accommodate the side of one or more hinge models (6), a cover (7) that attaches to the profile (1), covering the open face (11) of the profile.

2. The universal frame for concealed doors according to claim 1, wherein the profile (1) has an asymmetrical cross-section, where the projection (2) can be positioned on either the right side or the left side of the main body of the profile (10) by flipping it along its transverse axis.

3. The universal frame for concealed doors according to claim 1, wherein the seating area (26) includes additional inserts to accommodate different hinge models (6).

4. The universal frame for concealed doors according to claim 1, wherein the tenons (23) of the connecting element (4) are inserted into the profile's channel (8) from the sides, positioning the adjacent profile sections at a 90-degree angle, ensuring that the square prism-shaped body (24) extends the main body of the profile (10) and the square projection (22) aligns with the profile's projection (2).

5. The universal frame for concealed doors according to claims 1, wherein at the square prism-shaped body (24) and the square projection (22) feature ribs as a continuation of the tooth-shaped ribs (9) of the profile (1).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0049] To illustrate everything described so far, this specification is accompanied by a sheet of drawings depicting an exemplary embodiment of the invention.

[0050] In these drawings:

[0051] FIG. 1 shows a perspective view of the profile according to the invention.

[0052] FIG. 2 shows a perspective view of the cover according to the invention.

[0053] FIG. 3 shows a perspective view of the connecting element according to the invention.

[0054] FIG. 4 shows a perspective view of the hinge adapter according to the invention.

[0055] FIG. 5 shows a cross-sectional view of the profile with the cover mounted.

[0056] FIG. 6 shows a perspective view of the profile and cover according to the invention.

[0057] FIG. 7 shows an exploded view of the profile and cover according to the invention.

[0058] FIG. 8 shows a cross-sectional view of a frame according to the invention with an inward-opening configuration.

[0059] FIG. 9 shows a cross-sectional view of a frame according to the invention with an outward-opening configuration.

[0060] FIG. 10 shows a schematic view of the universal frame according to the invention with a right-hand door swing and an outward-opening configuration.

[0061] FIG. 11 shows a schematic view of the universal frame according to the invention with a left-hand door swing and an inward-opening configuration.

[0062] FIG. 12 shows a schematic view of the universal frame according to the invention with a right-hand door swing and an inward-opening configuration.

[0063] FIG. 13 shows a schematic view of the universal frame according to the invention with a left-hand door swing and an inward-opening configuration.

[0064] FIG. 14 shows an exploded view of the universal frame according to the invention.

REFERENCE LIST

[0065] 1. Frame profile [0066] 2. Projection [0067] 3. Frame [0068] 4. Connecting element [0069] 5. Adapter [0070] 6. Hinge [0071] 7. Cover [0072] 8. Channel [0073] 9. Tooth-shaped ribs [0074] 10. Main body of the frame profile [0075] 11. Open face [0076] 12. First flat surface [0077] 13. Notch [0078] 14. Sealing strip [0079] 15. Second flat surface [0080] 16. Door leaf [0081] 17. Projection surface [0082] 18. Prism base [0083] 19. Lateral faces of the prism [0084] 20. Horizontal section of the frame [0085] 21. Vertical sections of the frame [0086] 22. Square projection [0087] 23. Tenon [0088] 24. Square prism-shaped body [0089] 25. Perforations [0090] 26. Seating area

PREFERRED EMBODIMENT OF THE INVENTION

[0091] The example represented corresponds to a simplified version of the invention, in which the frame consists of four structural components:

[0092] Three units of a single profile (1) with a complex rectangular cross-section, forming the vertical and horizontal sections of the frame (3) through straight cuts, and featuring a projection (2) at the end of one of its faces.

[0093] Two units of the connecting element (4), which assemble the different profile sections that make up the frame (3).

[0094] Three units of the adapter (5), which are inserted into the profile (1), each accommodating one side of a conventional hinge (6).

[0095] Six sections of the cover (7), which are attached to the profile sections (1), covering the open spaces between the adapters where the hinges are seated.

[0096] According to the illustrated example, the profile (1) has a rectangular cross-section with an open face (11) on one of its shorter sides, forming an internal channel (8) where the adapters (5) are inserted, while its outer walls feature tooth-shaped ribs (9).

[0097] The projection (2) extends from the main body of the profile (10), beyond the plane of the open face (11), and runs along the edge of one of its faces along its entire length.

[0098] Two flat surfaces are distinguished on the projection (2).

[0099] The first flat surface (12) faces the open face (11) of the profile (1) and includes a notch (13) designed to hold a sealing strip (14) made of an elastic and wear-resistant material.

[0100] The second flat surface (15) faces outward from the frame (3) and forms an angle of approximately 90 to the first flat surface (12).

[0101] The edge of the door leaf (16) aligns with the second flat surface (15) when the door is closed.

[0102] The projection surface (17) facing the main body of the profile (10) also incorporates tooth-shaped ribs (9).

[0103] The profile (1) is sectioned into three parts using straight cuts to form the frame and can be positioned with the projection (2) on the right side of the main body of the profile (10), as shown in FIG. 8, or on the left side, as shown in FIG. 9, simply by flipping the section along its transverse axis to invert its position.

[0104] Depending on the chosen profile position, the frame (3) adapts to doors swinging to the left or right and opening inward or outward, as shown in FIGS. 10 to 13.

[0105] The connecting element (4) is designed to join the horizontal frame section (20) with the two vertical frame sections (21), forming a 90-degree angle.

[0106] According to the illustrated example, the connecting element (4) has a square prism-shaped body (24), where the prism base (18) has a length A1 equal to the height A2 of the profile (1), while the shorter side of the prism's lateral faces (19) has a length B1 equal to the width B2 of the profile (1).

[0107] One of the prism bases (18) features a square projection (22) at one corner, with a side length C1 matching the length C2 of the projection (2) of the profile.

[0108] The lateral faces of the prism (19) adjacent to the corner where the square projection (22) is located include a tenon (23) with a cross-section that matches the cross-section of the channel (8) of the profile.

[0109] The connecting element (4) serves as the junction between the vertical profile sections (21) and the horizontal profile section (20), ensuring that the square prism-shaped body (24) continues the main body of the profile (10), while the square projection (22) aligns with the projection (2).

[0110] In advanced versions, the square prism-shaped body extends the main body of the profile, including the ribs, and likewise, the square projection continues the projection.

[0111] According to the illustrated example, in the adapter (5), the width C1 and depth D1 correspond to the width C2 and depth D2 of the channel cross-section (8), while the length E1 is greater than the length E2 of the hinge (6).

[0112] As shown in the illustrated example, the adapter (5) features two perforations (25) at its ends, allowing fastening screws to secure it to the profile, as well as a seating area (26) where one side of the hinge (6) is inserted.