Fabric-wrapped bottom rail profile, and fabric-wrapping and mounting method therefor
By integrating the fabric covering, concealed fabric, and slot design, and combining the snap-fit method of rigid strips and elastic sheets, the problems of complex installation, noise, and poor visual effect of traditional curtain bottom beams are solved, achieving the effects of simplified disassembly and installation, reduced noise, and improved visual effect.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2026-04-02
AI Technical Summary
Traditional curtain bottom rail installation methods can easily damage the curtain fabric, are cumbersome to disassemble and install, and the difference in luster between the metal or plastic bottom rail and the curtain fabric affects the visual effect, generates noise, the adhesive fixation is prone to failure, has poor fabric compatibility, and is complicated to operate.
The curtain fabric is fixed by a one-piece molded covering part, concealed fabric part and slot design, and the curtain fabric is fixed by the snap-fit method of rigid strips and elastic pieces. This allows for step-by-step covering and installation, avoids glue fixation, reduces noise and improves visual effect.
It simplifies the disassembly and installation process of curtains, reduces noise, improves visual effects and fabric diversity, enhances fabric compatibility and installation convenience, and reduces production difficulty and cost.
Smart Images

Figure CN2025111782_02042026_PF_FP_ABST
Abstract
Description
A cloth-covered lower beam profile and its cloth covering and installation method TECHNICAL FIELD
[0001] The present application relates to the technical field of curtain lower beams, and in particular to a cloth-covered lower beam profile and its cloth covering and installation method. BACKGROUND
[0002] Traditional curtain lower beam installation methods typically involve directly fixing the lower beam to the bottom of the curtain fabric, such as using nails or through the method of suspending by drilling holes at the lower end of the curtain fabric. However, these methods have certain limitations, such as the potential for damage to the curtain fabric, or the cumbersome process of disassembly and installation when the curtain needs to be replaced or cleaned.
[0003] At the same time, in current curtain designs, the lower beam is mainly made of aluminum alloy or plastic materials and is often decorated through processes such as spraying or baking. However, this decoration method can only provide limited color options, and the appearance effect is largely dependent on the quality of the spraying or baking process. There is a significant difference in gloss between the metal or plastic material lower beam and the curtain fabric, which not only affects the overall visual effect of the curtain, but also produces a harsh noise when the lower beam collides with the aluminum alloy window frame during curtain movement or when the curtain is blown by the wind, affecting the living experience.
[0004] In addition, existing curtain lower beam covering methods typically involve directly wrapping the curtain fabric around the lower beam, and most cases use adhesives to secure it. The advantage of this approach is that it can make the entire curtain appear more integrated and aesthetically pleasing, and also reduce the noise generated when the metal or plastic lower beam comes into contact with the window frame.
[0005] However, this method also has some significant drawbacks. First, over time, the adhesives used, particularly double-sided tape, can lose their original adhesion, causing the curtain fabric to fall off the lower beam. This not only affects the overall appearance of the curtain, but also can cause the curtain to malfunction. Second, double-sided tape has different adhesion forces for different types of fabric, which means that certain fabrics may not adhere firmly to the lower beam, reducing the versatility and adaptability of this method. In addition, during the installation process, the operator needs to pull the curtain fabric tight while pressing it onto the lower beam to ensure the stability of the adhesion, which requires a certain amount of skill and patience, thereby increasing the complexity of the covering work. If the curtain fabric does not achieve sufficient flatness and horizontal consistency when covered on both sides, the shading effect of the curtain will also be affected, and even light leakage may occur, reducing the functionality of the curtain.
[0006] In view of these limitations, it is particularly important to find a more reliable, efficient, and easy-to-operate curtain lower beam profile and its covering method. SUMMARY
[0007] The present application aims to overcome the defects of the prior art, and provides a cloth-covered lower beam profile and a cloth covering and mounting method thereof.
[0008] To achieve the above object and other objects, the present application is implemented by including the following technical solutions: as a first aspect, the present application provides a cloth-covered lower beam profile, comprising an integrally formed cloth covering portion, a cloth hiding portion and a clamping groove, the length of the upper end portion of the cloth covering portion is less than the length of the lower end portion thereof; the rear end of the cloth hiding portion is formed with a cloth hiding groove; the clamping groove is obliquely arranged between the cloth covering portion and the cloth hiding portion, and the connecting side of the clamping groove with the cloth covering portion is higher than the connecting side of the clamping groove with the cloth hiding portion.
[0009] As a second aspect, the present application provides a cloth-covered lower beam profile, comprising an integrally formed cloth covering portion, a cloth hiding portion and a clamping groove, the length of the upper end portion of the cloth covering portion is less than the length of the lower end portion thereof; the rear end of the cloth hiding portion is formed with a cloth hiding groove; a recess is arranged on the front end face of the cloth hiding portion; the clamping groove is obliquely arranged between the cloth covering portion and the cloth hiding portion, and the connecting side of the clamping groove with the cloth covering portion is higher than the connecting side of the clamping groove with the cloth hiding portion.
[0010] In an embodiment, the lower end portion of the recess is connected with the rear end portion of the clamping groove.
[0011] In an embodiment, the bottom of the recess protrudes from the bottom of the cloth hiding groove to form a protrusion.
[0012] As a third aspect, the present application provides a cloth covering and mounting method of a cloth-covered lower beam profile, which is used for covering the cloth-covered lower beam profile of the first aspect and mounting the cloth-covered lower beam profile at the lower end of a curtain cloth; the method comprises the following steps:
[0013] S1, cutting out a cloth covering with a size sufficient to cover the cloth-covered lower beam profile, and fixing one end of the cloth covering on a hard bar, the width of the hard bar being greater than the slot width of the clamping groove; and fixing the other end of the cloth covering on an elastic sheet;
[0014] S2, inserting the hard bar with the cloth covering fixed thereon from the side of the clamping groove, and arranging the one end of the hard bar with the cloth covering fixed thereon at the connecting side of the clamping groove with the cloth covering portion, and arranging the end face of the hard bar with the cloth covering fixed thereon downward;
[0015] S3, tightening the cloth covering, and wrapping the cloth covering tightly on the upper end face, the front end face and the lower end face of the cloth covering portion in sequence from top to bottom, and then pressing the elastic sheet into the cloth hiding portion from the cloth hiding groove;
[0016] S4, fixing the lower end of the curtain cloth on the hard strip, the width of the hard strip being greater than the slot width of the card slot; the hard strip with the curtain cloth fixed thereon is inserted from the side of the card slot, and one end is tightly pressed against the wrapping cloth.
[0017] In an embodiment, one end of the wrapping cloth is welded, pinned or bonded with the hard strip.
[0018] In an embodiment, the hard strip is a rubberized batten.
[0019] In an embodiment, the other end of the wrapping cloth is welded, pinned or bonded with the elastic sheet.
[0020] In an embodiment, the elastic sheet is a thin sheet with elasticity, with a thickness of 0.2mm-0.5mm.
[0021] As a fourth aspect, the application provides a wrapping cloth and installation method for wrapping the wrapping cloth under the beam profile and installing the wrapping cloth under the beam profile at the lower end of the curtain cloth; the method comprises the steps of:
[0022] S1, cutting a wrapping cloth with a size sufficient to wrap the wrapping cloth under the beam profile, and fixing one end of the wrapping cloth on a hard strip, the width of the hard strip being greater than the slot width of the card slot; the other end is fixed on an elastic sheet;
[0023] S2, inserting the hard strip with the wrapping cloth fixed thereon from the side of the card slot;
[0024] S3, tighten the wrapping cloth, and wrap it tightly on the upper end face, front end face and lower end face of the wrapping cloth part in turn from top to bottom, and then press the elastic sheet into the cloth hiding part from the cloth hiding groove;
[0025] S4, fixing the lower end of the curtain cloth on the hard strip, the width of the hard strip being greater than the slot width of the recess;
[0026] In an embodiment, one end of the wrapping cloth is welded, pinned or bonded with the hard strip.
[0027] In an embodiment, the hard strip is a rubberized batten.
[0028] In an embodiment, the other end of the wrapping cloth is welded, pinned or bonded with the elastic sheet.
[0029] In an embodiment, the elastic sheet is a thin sheet with elasticity, with a thickness of 0.2mm-0.5mm.
[0030] In an embodiment, in step S2, one end of the hard strip with the wrapping cloth fixed thereon is arranged at the connecting side of the card slot and the cloth hiding part.
[0031] In an embodiment, in step S2, the hard strip is fixed with the end face of the cloth facing upwards.
[0032] Compared with the prior art, the present application has the following advantages:
[0033] 1. The cloth lower beam profile of the present application can fix the curtain cloth to the cloth lower beam profile made of metal or plastic through clamping, thereby avoiding damage to the curtain cloth, and when the curtain cloth needs to be replaced or cleaned, the curtain cloth can be easily disassembled and installed.
[0034] 2. The cloth lower beam profile of the present application can be used to wrap the cloth on the cloth lower beam made of metal or plastic through the design of the clamping groove and the cloth hiding groove, so that the overall visual effect between the lower beam and the curtain cloth is better, and when the curtain moves or is blown by the wind, the collision noise between the lower beam and the aluminum alloy window frame can be reduced, improving the user experience. At the same time, the cloth and the cloth lower beam are clamped, which can facilitate the disassembly and installation of the cloth according to the needs.
[0035] 3. The cloth wrapping method of the present application can realize step-by-step lower beam wrapping and installation of the curtain cloth, so that the lower beam wrapping fabric and style selection are more diverse, and users can select curtain cloth and cloth according to their own preferences or interior decoration style to freely match, realizing personalized customization of products. Users can change the lower beam cloth of different colors or styles in different seasons without having to replace the entire curtain, which not only increases the fun of use.
[0036] 4. The cloth lower beam profile and the cloth wrapping method of the present application can realize step-by-step assembly design of the lower beam cloth and the curtain cloth, which can reduce the assembly production difficulty and the cost of curtain cloth damage caused by assembly.
[0037] 5. The cloth lower beam profile and the cloth wrapping method of the present application can realize quick fixing and tightening of the cloth on the lower beam profile through the side insertion clamping of the hard strip and the clamping groove, and the clamping of the elastic sheet and the cloth hiding part. The side insertion clamping of the hard strip and the clamping groove can quickly fix the curtain cloth on the lower beam profile, which is conducive to improving the overall product quality and production efficiency.
[0038] 6. The cloth lower beam profile and the cloth wrapping method of the present application can avoid the shortcomings of poor fabric compatibility and long-term adhesion failure of double-sided adhesive through the clamping of the hard strip and the clamping groove, and the clamping of the elastic sheet and the cloth hiding part. The connection between the elastic sheet and the cloth surface can accommodate the tolerance of the fabric cutting, the elastic sheet can provide the elasticity to keep the cloth surface tight, and it can be installed in place through manual bending, which is fast, economical and has high yield. BRIEF DESCRIPTION OF DRAWINGS
[0039] Fig. 1 shows a structural schematic diagram of a first embodiment of a wrapped lower beam profile according to the present application.
[0040] Fig. 2 shows a schematic diagram of wrapping and installation of the first embodiment of the wrapped lower beam profile according to the present application.
[0041] Fig. 3 shows a structural schematic diagram of a second embodiment of a wrapped lower beam profile according to the present application.
[0042] Fig. 4 shows a schematic diagram of wrapping and installation of the second embodiment of the wrapped lower beam profile according to the present application.
[0043] In the figures: 10, wrapped lower beam profile; 11, wrapped portion, 111, upper end portion, 112, lower end portion; 12, hidden portion, 121, first hook, 122, second hook, 123, groove; 124, protrusion; 13, clamping groove; 131, hook member; 20, wrapping cloth; 30, curtain cloth; 40, hard strip; 50, elastic sheet. DETAILED DESCRIPTION
[0044] Please refer to Figs. 1-4. The embodiments of the present application are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure.
[0045] It should be understood that the structures, proportions, sizes, etc. shown in the drawings attached to the present specification are only used to cooperate with the disclosure of the present specification for the understanding and reading of those skilled in the art, and do not have technical substantive significance, and any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.
[0046] Unless otherwise defined, the technical terms or scientific terms used herein should have the meanings commonly understood by those skilled in the art to which the present application belongs. The use of "one", "an" or "the" and similar words in the present application does not represent a quantity limitation, but only means that at least one exists. The words "including" or "containing" and similar words mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, without excluding other elements or objects. In the present specification, the serial numbers of the components, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any order or technical meaning. The "connection" in the present application includes direct and indirect connections unless otherwise specified.
[0047] In the present application, "front end" refers to the end of the wrapped lower beam facing the user after installation, and "rear end" refers to the end of the wrapped lower beam facing the window after installation.
[0048] In order to avoid confusion with the present application, some technical features known in the art are not described. Embodiment 1
[0049] As shown in Fig. 1, the present embodiment provides a packing cloth lower beam profile 10, which comprises a packing cloth part 11, a hiding cloth part 12 and a clamping groove 13, and is integrally formed; the packing cloth part 11 and the hiding cloth part 12 are both in the shape of a "N" character, the length of the upper end 111 of the packing cloth part 11 is less than the length of the lower end 112 thereof; an opening is formed at the upper end of the packing cloth part 11, which is used for passing the packing cloth 20 and the curtain cloth 30; the upper end of the hiding cloth part 12 is bent downward to form a first clamping hook 121, and the lower end thereof is bent upward to form a second clamping hook 122, so as to form a hiding cloth groove at the rear end of the hiding cloth part 12; the clamping groove 13 is obliquely arranged between the packing cloth part 11 and the hiding cloth part 12, and the connecting side of the clamping groove 13 with the packing cloth part 11 is higher than the connecting side of the clamping groove 13 with the hiding cloth part 12, so that the slot of the clamping groove 13 faces upward and rearward, and is used for clamping one end of the packing cloth 20 and the lower end of the curtain cloth 30; the hiding cloth groove is used for clamping the other end of the packing cloth 20. After the packing cloth operation is performed on the packing cloth lower beam profile 10, the packing cloth 20 is tightly wrapped on the upper end surface, the front end surface and the lower end surface of the packing cloth part 11.
[0050] As shown in Fig. 2, the present embodiment provides a packing cloth and installation method of a packing cloth lower beam profile, which is used for packing the packing cloth lower beam profile 10 and installing it at the lower end of the curtain cloth 30. The method specifically comprises the following steps:
[0051] S1, cutting the packing cloth 20 with a size sufficient to cover the packing cloth lower beam profile 10, and fixing one end of the packing cloth 20 on the hard bar 40 by welding, nailing or bonding, etc., the width of the hard bar 40 being greater than the slot width of the clamping groove 13; and fixing the other end of the packing cloth 20 on the elastic sheet 50 by welding, nailing or bonding, etc.
[0052] S2, inserting the hard bar 40 with the packing cloth 20 fixed thereon into the clamping groove 13 from the side thereof, and arranging the end of the hard bar 40 with the packing cloth 20 fixed thereon at the connecting side of the clamping groove 13 with the packing cloth part 11, and arranging the end surface of the hard bar 40 with the packing cloth 20 fixed thereon downward;
[0053] S3, tightly wrapping the packing cloth 20 from top to bottom on the upper end surface, the front end surface and the lower end surface of the packing cloth part 11 in sequence, and then inserting the elastic sheet 50 with the packing cloth 20 fixed thereon into the hiding cloth part 12 from the first clamping hook 121 and the second clamping hook 122;
[0054] S4, the lower end of the curtain fabric 30 is fixed on the hard bar 40 by welding, nailing or bonding, etc. The width of the hard bar 40 is greater than the slot width of the clamping groove 13. The hard bar 40 fixed with the curtain fabric 30 is inserted from the side of the clamping groove 13, and one end is tightly fixed on the cloth 20 to provide the tension of the cloth 20.
[0055] The hard bar 40 can be a tape with glue, or other hard bars that can be fixed and connected with various fabrics. The elastic sheet 50 is a thin sheet with elasticity, which can be rectangular, and the thickness is between 0.2mm and 0.5mm. The elastic sheet 50 can provide the tension of the cloth 20 to realize the tight wrapping of the cloth 20 on the cloth part 11. Embodiment 2
[0056] As shown in Fig. 3, the present embodiment provides a cloth lower beam profile 10, which is different from the embodiment 1 in that a groove 123 is provided on the front end face of the cloth hiding part 12 for clamping the curtain fabric 30. At this time, the clamping groove 13 is only used to clamp one end of the cloth 20.
[0057] Further, the rear end of the clamping groove 13 is connected with the lower end of the groove 123, that is, the clamping hook part 131 is shared, which can reduce the use of raw materials of the profile, thereby reducing the production cost.
[0058] Further, the bottom of the groove 123 protrudes from the bottom of the cloth hiding groove to form a protrusion 124, which can increase the deformation amount of the elastic sheet 50, and obtain greater tension to further ensure the tightness of the cloth 20 on the cloth part 11.
[0059] As shown in Fig. 4, correspondingly, the cloth and installation method of the cloth lower beam profile 10 provided by the present embodiment specifically includes the following steps:
[0060] S1, cutting the cloth 20 with a size sufficient to cover the cloth lower beam profile 10, and fixing one end of the cloth 20 on the hard bar 40 by welding, nailing or bonding, etc. The width of the hard bar 40 is greater than the slot width of the clamping groove 13. The other end is fixed on the elastic sheet 50 by welding, nailing or bonding, etc.
[0061] S2, the hard bar 40 fixed with the cloth 20 is inserted from the side of the clamping groove 13;
[0062] It should be noted that although the hard bar 40 fixed with the end of the cloth 20 is arranged at the connecting side of the clamping groove 13 and the cloth hiding groove 12, and the end face of the hard bar 40 fixed with the cloth 20 faces upward, this is not necessary in the embodiment. The end of the hard bar 40 fixed with the cloth 20 can also be arranged at the connecting side of the clamping groove 13 and the cloth hiding groove 12; and the end face of the hard bar 40 fixed with the cloth 20 can also face downward.
[0063] S3, the cloth 20 is tightened, and is sequentially wrapped on the upper end face, the front end face and the lower end face of the cloth hiding groove 12 from top to bottom, and then the elastic sheet 50 fixed with the cloth 20 is pressed into the cloth hiding groove 12 from the first clamping hook 121 and the second clamping hook 122;
[0064] S4, the lower end of the curtain cloth 30 is fixed on the hard bar 40 by welding, nailing or bonding, and the width of the hard bar 40 is greater than the slot width of the groove 123; and the hard bar 40 fixed with the curtain cloth 30 is inserted from the side of the groove 123.
[0065] In summary, the cloth lower beam profile and the cloth hiding method provided by the application can realize step-by-step lower beam cloth hiding and installation of curtain cloth, so that the cloth hiding material and style of the lower beam are more diverse, and users can select curtain cloth and cloth hiding according to their own preferences or indoor decoration style for free combination, realizing personalized customization of products; at the same time, the curtain cloth 30 is clamped and fixed on the cloth lower beam profile 10 made of metal or plastic material, so as to avoid damage to the curtain cloth 30, and when the curtain cloth 30 needs to be replaced or cleaned, the disassembly and installation are simple and easy to operate; through the design of the clamping groove 13 and the cloth hiding groove, the cloth can be hidden on the cloth hiding groove 11 made of metal or plastic material, so that the overall visual effect between the lower beam and the curtain cloth 30 is better, and when the curtain moves or is blown by the wind, the collision noise between the lower beam and the aluminum alloy window frame can be reduced, and the use experience is improved; at the same time, the cloth 20 and the cloth hiding groove 11 are clamped, so that the cloth 20 can be conveniently disassembled and installed according to needs.
[0066] Therefore, the present application effectively overcomes the shortcomings of the prior art and has high industrial utilization value. The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.
Claims
1. A cover cloth lower beam profile, characterized by, The package cloth section, the hidden cloth section and the clamping slot are integrally formed, The length of the upper end of the package cloth section is less than the length of the lower end of the package cloth section; The rear end of the hidden cloth section is formed with a hidden cloth slot; The clamping slot is obliquely arranged between the package cloth section and the hidden cloth section, and the connecting side of the clamping slot with the package cloth section is higher than the connecting side of the clamping slot with the hidden cloth section.
2. The apron cross member of claim 1, wherein A groove is arranged on the front end surface of the hidden cloth section.
3. The apron underbeam profile according to claim 2, characterized in that The lower end of the groove is connected with the rear end of the clamping slot.
4. The apron underbeam profile according to claim 2, characterized in that The bottom of the groove protrudes from the bottom of the hidden cloth slot to form a protrusion.
5. A method of wrapping and installing a wrapping beam profile, characterized by, The method for wrapping the package cloth under beam section and installing the package cloth under beam section at the lower end of the curtain cloth comprises the following steps S1, cutting the package cloth with a size sufficient to wrap the package cloth under beam section, and fixing one end of the package cloth on a hard bar, and fixing the other end of the package cloth on an elastic sheet, wherein the width of the hard bar is greater than the slot width of the clamping slot; S2, inserting the hard bar with the package cloth from the side of the clamping slot, and arranging the end of the hard bar with the package cloth on the connecting side of the clamping slot and the package cloth section, and arranging the end surface of the hard bar with the package cloth downward; S3, tightening the package cloth, and wrapping the package cloth on the upper end surface, the front end surface and the lower end surface of the package cloth section in sequence from top to bottom, and then pressing the elastic sheet into the hidden cloth section from the hidden cloth slot; S4, fixing the lower end of the curtain cloth on a hard bar, and inserting the hard bar with the curtain cloth from the side of the clamping slot, and abutting the hard bar with the curtain cloth against the package cloth.
6. A method of wrapping and installing a wrapping beam profile, characterized by The method for wrapping the package cloth under beam section and installing the package cloth under beam section at the lower end of the curtain cloth comprises the following steps S1, cutting the package cloth with a size sufficient to wrap the package cloth under beam section, and fixing one end of the package cloth on a hard bar, and fixing the other end of the package cloth on an elastic sheet, wherein the width of the hard bar is greater than the slot width of the clamping slot; S2, inserting the hard bar with the package cloth from the side of the clamping slot; S3, tightening the package cloth, and wrapping the package cloth on the upper end surface, the front end surface and the lower end surface of the package cloth section in sequence from top to bottom, and then pressing the elastic sheet into the hidden cloth section from the hidden cloth slot; S4, fixing the lower end of the curtain cloth on a hard bar, and inserting the hard bar with the curtain cloth from the side of the clamping slot, and abutting the hard bar with the curtain cloth against the package cloth.
7. The method according to claim 5 or 6, characterized in that, One end of the package cloth is welded, nailed or bonded with the hard bar.
8. The method according to claim 5 or 6, characterized in that, The hard bar is a rubber strip.
9. The method according to claim 5 or 6, characterized in that, The other end of the package cloth is welded, nailed or bonded with the elastic sheet.
10. The method of claim 5 or 6, wherein, The elastic sheet is a thin sheet with elasticity, and the thickness is 0.2mm-0.5mm.
11. The method of claim 6, wherein, In step S2, the end of the hard bar with the package cloth is arranged on the connecting side of the clamping slot and the hidden cloth section.
12. The method of claim 11, wherein, In step S2, the end surface of the hard bar with the package cloth faces upward.
Citation Information
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