STRETCH CEILING PROFILE

Abstract

This utility model relates to construction and can be used in the design of a polymer profile for attaching stretch ceiling fabric. The technical results achieved by this utility model include expanding the profile's applicability and expanding the range of technical tools for construction and renovation. These technical results are achieved in a profile made of a solid polymer material, shaped like a beam and comprising upper and lower flanges, front and rear walls, as well as an inner wall and an inner flange, dividing the profile into a closed cross-sectional cavity and an open cross-sectional cavity for inserting the edge of the stretch ceiling fabric. A projection is formed in the open cavity on the rear wall to secure the edge of the fabric.The stated technical results are achieved by the fact that the cavity for inserting the edge of the stretch ceiling sheet is equipped with lashes made of a soft polymer material and protruding into the cavity from the inner wall, and the bases of the lashes are thickened and recessed into the material of the inner wall of the profile. 2 fig.

Description

[0001] The utility model relates to the field of construction and can be used in the design of a profile made of polymer material for fastening a stretch ceiling sheet.

[0002] In this application, the hard polymer material refers to a polymer material with a Shore A hardness in the range of 80 to 100, and the soft polymer material refers to a polymer material with a Shore A hardness in the range of 45 to 80.

[0003] From the description of patent RU 199150 U1, IPC E04B 9 / 30, published August 19, 2020, a profile made of a hard polymeric material for a stretch fabric is known, comprising a front wall, a rear wall, and a shelf connecting the walls to form a cavity for inserting the edge of the fabric. The cavity is provided with a projection for securing the fabric, protruding into the cavity from the rear wall, and lashes made of a soft polymeric material and protruding into the cavity from the front wall, wherein the bases of the lashes are thickened and recessed into the material of the front wall of the profile.

[0004] The profile, known from the description of patent RU 199150 U1, is intended for fastening both film and fabric stretch ceilings.

[0005] The disadvantage of the profile design, known from the description of patent RU 199150 U1, is insufficient rigidity.

[0006] The prior art discloses profiles made of a solid polymer material in the form of a bar with a cavity closed in the cross-section and a cavity open in the cross-section for inserting and holding the edge of a tension web with a harpoon fastening.

[0007] The closed cavity of the profile gives the structure increased rigidity, and the open cavity is designed to insert the edge of the web and hold the harpoon.

[0008] For example, it is known from the prior art, see the description of patent RU 221797 U1, IPC E04B 19 / 30, published on 23.11.2023, a profile made of a hard polymer material for a tension web, made in the form of a bar and including upper and lower shelves, front and rear walls, as well as a curved partition dividing the profile into a cavity closed in cross-section and a cavity open in cross-section with an entrance for inserting the edge of the tension web with a harpoon and a protrusion for fixing the harpoon in the open cavity.

[0009] The disadvantage of the profile, known from the description of patent RU 221797 U1, is its limited use, since it is intended for fastening a film stretch ceiling equipped with a harpoon, and is not suitable for fastening a fabric stretch ceiling.

[0010] The closest analogue of the claimed utility model is a profile made of a hard polymer material for a stretch ceiling, see the description of patent RU 220734 U1, IPC E04B 9 / 30, published on September 29, 2023, made in the form of a bar and containing upper and lower shelves, front and rear walls, as well as an inner wall and an inner shelf, dividing the profile into a cavity closed in cross-section and a cavity open in cross-section for inserting the edge of the stretch ceiling sheet, wherein a protrusion is formed in the open cavity for fixing the edge of the sheet with a harpoon.

[0011] The objective of this utility model is to create a profile made of polymer material for a stretch ceiling, in the form of a beam, characterized by increased structural rigidity and the ability to attach both film and fabric stretch ceiling panels.

[0012] The technical results that the utility model is aimed at achieving consist of expanding the applicability of the profile and expanding the arsenal of technical means for construction and repair.

[0013] The above technical results are achieved in a profile made of a hard polymer material, made in the form of a bar and containing upper and lower shelves, front and rear walls, as well as an inner wall and an inner shelf, dividing the profile into a cavity closed in cross-section and a cavity open in cross-section for inserting the edge of the stretch ceiling sheet, and in the open cavity on the rear wall a protrusion is formed for fixing the edge of the sheet.

[0014] The specified technical results are achieved by the fact that the cavity for inserting the edge of the stretch ceiling sheet is equipped with lashes made of a soft polymer material and protruding into the cavity from the inner wall, and the bases of the lashes are made thicker and recessed into the material of the inner wall of the profile.

[0015] The utility model is explained by the following images.

[0016] Fig. 1 shows a cross-section of the profile with positions indicated;

[0017] Fig. 2 shows a cross-section of the profile with the wall thickness indicated.

[0018] The following are designated by the positions in Fig. 1, 2:

[0019] 1 - profile;

[0020] 2 - top shelf;

[0021] 3 - lower shelf;

[0022] 4 - front wall;

[0023] 5 - back wall;

[0024] 6 - inner wall;

[0025] 7 - internal shelf;

[0026] 8 - open cavity for inserting the edge of the web;

[0027] 9 - part of the rear wall 5, limiting the open cavity 8 for inserting the edge of the web;

[0028] 10 - protrusion for fixing the edge of the canvas;

[0029] 11 - corner projection for bending the canvas;

[0030] 12 - protrusion for bending the canvas;

[0031] 13 - base of the first branch of cilia;

[0032] 14, 15 - cilia of the first branch;

[0033] 16 - base of the second branch of cilia;

[0034] 17, 18 - cilia of the second branch;

[0035] 19 - protrusion on the edge of wall 5;

[0036] 20 - closed cavity;

[0037] 51 - profile wall thickness;

[0038] 52 - outer wall thickness 9.

[0039] The utility model can be successfully implemented in a profile 1 made of a hard polymer material, made in the form of a bar and containing an upper shelf 2 and a lower shelf 3, a front wall 4 and a rear wall 5, as well as an inner wall 6 and an inner shelf 7, dividing the profile 1 into a cavity 20 closed in cross-section and a cavity 8 open in cross-section for inserting the edge of the stretch ceiling web, wherein in the open cavity 8 on the rear wall 5 a protrusion 10 is formed for fixing the edge of the web.

[0040] To implement the utility model, the following changes are made to the design.

[0041] The open cavity 8 for inserting the edge of the stretch ceiling sheet is provided with lashes 14, 15, 17, 18, made of a soft polymer material and protruding into the cavity 8 from the inner wall 6, and the bases 13, 16 of the lashes are made thicker and are deepened into the material of the inner wall 6 of profile 1.

[0042] The profile is made of a relatively hard polymer material, for example, polyvinyl chloride (hereinafter referred to as PVC).

[0043] Relatively soft polymer material, such as plasticized PVC, is suitable for creating eyelashes.

[0044] The profile with eyelashes can be made by co-extrusion method.

[0045] In this case (see Fig. 2), the thickness S1 of the shelves 2, 3 and the walls 4, 5, limiting the closed cavity 20, is selected by the manufacturer based on the required rigidity, therefore it can be either equal to the thickness S2 of the part 9 of the rear wall 5, limiting the open cavity 8 for inserting the edge of the stretch ceiling sheet, or exceed the thickness S2.

[0046] The level of technological development will allow the use of other polymeric materials, such as polyethylene, polypropylene, polystyrene plastic, and polyethylene terephthalate.

[0047] The thickness of the profile walls for different polymer materials, including different grades of PVC, is determined empirically.

[0048] The profile is used in the normal way.

[0049] Profile 1 is attached to the ceiling or wall using dowels and rod fasteners.

[0050] Using a spatula, insert the edge of the stretch ceiling sheet into cavity 8, pushing back the eyelashes, after which remove the spatula from cavity 8, and fix the edge of the stretch ceiling sheet in cavity 8 using the eyelashes.

[0051] Then stretch the stretch ceiling fabric on the projection 12 and, possibly, on the projection 11, and pull the fabric in the direction of the other profile for the stretch ceiling.

[0052] The profile's applicability is expanded due to the possibility of using it for fastening both film and fabric stretch ceilings.

[0053] The presence of a closed cavity profile gives the structure increased rigidity, which has a positive effect on the reliability of the fastening of the stretch ceiling fabric.

[0054] In addition, the beam-shaped profile can be used instead of the universal structural element made in the shape of a beam made of wood or aluminum alloy.

[0055] The conducted patent research confirms the global novelty of the utility model.

[0056] The operation of prototype profile samples confirmed the industrial applicability of the utility model and compliance with the stated technical results.

Claims

A profile made of polymer material for a stretch ceiling, made in the form of a bar and containing upper and lower shelves, front and rear walls, as well as an inner wall and an inner shelf, dividing the profile into a cavity closed in cross-section and a cavity open in cross-section for inserting the edge of the stretch ceiling sheet, wherein a projection is formed in the open cavity for fixing the edge of the sheet, characterized in that the cavity for inserting the edge of the stretch ceiling sheet is provided with lashes made of a soft polymer material and protruding into the cavity from the inner wall, wherein the bases of the lashes are made thickened and recessed into the material of the inner wall of the profile.

Images