T-shaped strip and windproof curtain

Abstract

The utility model relates to the technical field of curtains, in particular to a T-shaped strip and a windproof curtain. The T-shaped strip comprises an elastic strip and low-friction cloth, the inner side surface of the low-friction cloth is provided with a first adhesive which can be adhered after being heated; the elastic strip is wrapped by the low-friction cloth; the low-friction cloth comprises a cloth main body and a connecting edge extending from the cloth main body; and the connecting edge clamps the splicing edge and is bonded with the splicing edge. The friction force of the low-friction cloth is very small, and the low-friction cloth can easily slide in the sliding groove. During production, the elastic strip is wrapped by the cloth main body, the splicing edge is clamped by the connecting edge extending from the cloth main body, and the cloth main body, the elastic strip and the splicing edge are adhered together under hot pressing in a mold. And the splicing edges on the T-shaped strips are quickly bonded with a windproof curtain, a curtain and the like in an ultrasonic welding manner, so that the working efficiency is higher. And the T-shaped strip is prefabricated and formed firstly, so that the subsequent alignment and splicing of the T-shaped strip and the edges of a windproof curtain, a curtain and the like are facilitated, the alignment difficulty of workers on splicing can be reduced, and the production efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of curtain technology, and in particular to a T-shaped strip and a windproof curtain. Background Technology

[0002] Curtains are interior decorations made of various materials (such as cloth, linen, gauze, aluminum sheets, wood sheets, metal, etc.), primarily used for sun shading, heat insulation, and regulating indoor light. They are not only functional items but also an important part of home décor, enhancing the aesthetics and comfort of a room. Windproof curtains are also a type of curtain or door curtain.

[0003] Some curtains on the market are stored using a roll-up method. To ensure the stability of the curtain when rolled up, these curtains usually have retaining strips on both sides. The production of these curtains typically involves sewing the retaining strips onto the curtain. This sewing process requires stitching from one end to the other, which is time-consuming and inefficient.

[0004] For example, the intelligent curtain system disclosed in Chinese patent application number CN202120938074.5 specifically discloses that "the edging strip has a second groove, the edge of the first curtain fabric is inserted into the second groove, the edging strip and the edge of the first curtain fabric are connected by positioning pins, the first groove of the edging strip is a "T"-shaped groove, the edge of the second curtain fabric is provided with a limiting strip, the edge of the second curtain fabric is inserted into the first groove, and the limiting strip is inserted into the inner end of the "T"-shaped structure of the first groove." The production of such curtains typically involves sewing the limiting strip onto the curtain. Sewing requires stitching from one end to the other, which is time-consuming for alignment and stitching, resulting in low work efficiency. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology by providing a T-shaped strip that is bonded to curtains or similar items via splicing edges, thereby improving production efficiency and overcoming the shortcomings of the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This application provides a T-shaped strip, including an elastic strip and a low-friction fabric; the inner side of the low-friction fabric is provided with a heat-adhesive first adhesive; the low-friction fabric wraps around the elastic strip;

[0008] The low-friction fabric includes a main body and a connecting edge extending from the main body; the connecting edge clamps the splicing edge and is bonded to the splicing edge.

[0009] Preferably, the connecting edge is tightly attached to the fabric body after being heated and shaped.

[0010] Preferably, the joining position of the connecting edges is at the center line of the elastic strip, or at a position 1-2 mm away from the center line of the elastic strip.

[0011] Preferably, a second adhesive that can be bonded by heat is also provided on the splicing edge, and the second adhesive is exposed on the splicing edge.

[0012] Preferably, the elastic strip is an elastic steel strip or an elastic plastic strip.

[0013] Preferably, the low-friction fabric is one of nylon fabric, polyester fabric, aramid fabric, acrylic fabric, nylon fabric, spandex fabric, vinylon fabric, polypropylene fabric, and polyester twill fabric.

[0014] Preferably, the first adhesive is one of the following: ethylene-vinyl acetate copolymer hot melt adhesive, polyamide hot melt adhesive, PET hot melt adhesive, PU hot melt adhesive, SDS hot melt adhesive, polyethylene hot melt adhesive, polypropylene hot melt adhesive, and polyester hot melt adhesive.

[0015] This application provides a windproof curtain, including the aforementioned T-shaped strip; the splicing edge is ultrasonically welded to the windproof curtain body, and the T-shaped strip is slidably engaged in the groove of the guide rail.

[0016] Preferably, the toughness of the splicing edge is greater than that of the windproof curtain, and the overlap width between the windproof curtain body and the splicing edge is greater than half the width of the splicing edge.

[0017] Preferably, the windproof curtain body is one of polyester, nylon, polystyrene fabric, non-woven fabric, and polyethylene fabric.

[0018] Compared with existing technologies, this invention has significant advantages and beneficial effects. Specifically, as shown in the above technical solution, the low-friction fabric has very little friction and can slide easily in the groove. The elastic strip is elastic and can restore its shape on its own. During production, the main fabric body wraps around the elastic strip, and the connecting edge extending from the main fabric body clamps the splicing edge. The main fabric body, elastic strip, and splicing edge are bonded together under the heat and pressure of the mold. The splicing edge on the T-shaped strip is quickly bonded to the curtain using ultrasonic welding. This design eliminates the need for sewing, resulting in higher work efficiency.

[0019] In addition, the prefabrication of the T-strips makes it easier to align and splice them with the edges of windproof curtains, curtains, etc., which reduces the difficulty of alignment for workers and further improves production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the unfolded state of the T-shaped strip according to Embodiment 1 of this utility model.

[0021] Figure 2This is a schematic diagram of the T-shaped strip winding state according to Embodiment 1 of this utility model.

[0022] Figure 3 This is a schematic diagram of the unfolded state of the T-shaped strip in Embodiment 2 of this utility model.

[0023] Figure 4 This is a schematic diagram of the T-shaped strip assembly in Embodiment 3 of this utility model.

[0024] Figure 5 This is a schematic diagram of the T-shaped strip assembly in Embodiment 3 of this utility model.

[0025] Explanation of reference numerals in the attached diagram:

[0026] 10. Elastic strip; 20. Low-friction fabric; 21. Fabric body; 22. Connecting edge; 23. First adhesive; 24. Splicing edge; 25. Second adhesive; 30. Guide rail; 31. Slide groove; 32. Windproof curtain body. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0028] Example 1

[0029] Please refer to Figures 1 to 2 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, which is a T-shaped strip.

[0030] In this type of T-shaped strip, it is first hot-pressed into shape in a mold, and the splicing edge 24 overlaps with the curtain (e.g., windproof curtain body 32, door curtain), and then welded together by ultrasonic welding. This design does not require sewing, which can greatly save time and help improve production efficiency.

[0031] This application provides a T-shaped strip, including an elastic strip 10 and a low-friction fabric 20. The inner surface of the low-friction fabric 20 is provided with a heat-adhesive first adhesive 23. The low-friction fabric 20 wraps around the elastic strip 10. The low-friction fabric 20 includes a fabric body 21 and a connecting edge 22 extending from the fabric body 21. The connecting edge 22 clamps and adheres to a splicing edge 24. The elastic strip 10 acts as a reinforcing rib, allowing the T-shaped strip to recover its shape. The low-friction fabric 20 has high toughness and low frictional resistance, allowing it to slide smoothly in a groove 31. During production, the low-friction fabric 20 is placed into a mold, and then the elastic strip 10 is inserted into the mold, so that the low-friction fabric 20 wraps around the elastic strip 10, and the connecting edge 22 clamps the splicing edge 24. The mold closes and heat-presses, bonding the fabric body 21 to the elastic strip 10, and the connecting edge 22 is joined and glued to the splicing edge 24, thus pre-forming the T-strip. The first adhesive 23 is a heat-adhesive adhesive that can be heated using ultrasound, a heating plate, etc. Curtains, windproof curtains, etc., can be directly welded to the splicing edge 24 using ultrasound. This design eliminates the need for sewing, saving time and improving curtain production efficiency, resulting in a more aesthetically pleasing product. The curtains and windproof curtains become adhesive after being heated by ultrasound and can be directly pasted to the splicing edge. Furthermore, since the T-strips are factory-made, manufacturing costs are reduced. Pre-forming the T-strips facilitates subsequent alignment with the splicing edges of curtains, windproof curtains, etc., reducing the difficulty for workers in aligning the splicing edge 24 and further improving production efficiency.

[0032] The connecting edge 22 is heat-set in the mold, and after heat-setting, it adheres tightly to the fabric body 21. This design allows the T-shaped strips to stick together tightly when rolled up, making the curtains more compact when rolled up. The connecting edge 22 can be either pressed tightly against the fabric body 21 or moved away from it.

[0033] Preferably, the connecting edges 22 are joined together and glued at the centerline of the elastic strip 10. The joining position of the connecting edges 22 can be at the centerline of the elastic strip 10, or it can be offset by 1-2 mm from the centerline of the elastic strip 10. In this embodiment, the joining position of the connecting edges 22 is offset by 1-2 mm from the centerline of the elastic strip 10. This design allows the T-shaped strip to be more easily inserted into the sliding groove 31, while leaving a certain gap for smoother sliding. The joining position of the connecting edges 22 in this embodiment is offset by 1-2 mm from the centerline of the elastic strip 10. This design allows the T-shaped strip to be more easily inserted into the sliding groove 31, while leaving a certain gap for smoother sliding.

[0034] Preferably, the elastic strip 10 is an elastic steel strip or an elastic plastic strip. In this embodiment, the elastic strip 10 is an elastic steel strip, wherein the thickness is between 0.1-1mm, for example, any value among 0.1mm, 0.2mm, 0.4mm, 0.6mm, 0.8mm, and 1.0mm. The width is between 2-10mm, for example, 2.0mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 7.0mm, 8.0mm, 9.0mm, and 10.0mm. More specifically, a sliding gap of 1-2mm is left between the elastic steel strip and the sliding groove 31, which facilitates the sliding of the T-shaped strip.

[0035] Preferably, the low-friction fabric 20 is one of nylon fabric, polyester fabric, aramid fabric, acrylic fabric, nylon fabric, spandex fabric, vinylon fabric, polypropylene fabric, and polyester twill fabric. The first adhesive 23 and the second adhesive 25 are one of ethylene-vinyl acetate copolymer hot melt adhesives, polyamide hot melt adhesives, PET hot melt adhesives, PU hot melt adhesives, SDS hot melt adhesives, polyethylene hot melt adhesives, polypropylene hot melt adhesives, and polyester hot melt adhesives. The low-friction fabric 20 and the first adhesive 23 are made of commonly available materials, and their processing technology is mature and simple, resulting in lower production costs.

[0036] Example 2

[0037] Please refer to Figure 3 As shown, Embodiment Two includes most of the structure of the T-shaped strip in Embodiment One, and the identical parts will not be described again. The difference is that a second adhesive 25, which is heat-adhesive, is also provided on the splicing edge, and this second adhesive 25 is exposed on the splicing edge. That is, the second adhesive 25 is exposed on the splicing edge, and this second adhesive 25 becomes adhesive after being heated by ultrasonic waves. The second adhesive 25 makes it easier to stick curtains, window screens, windproof curtains, etc. more firmly and securely. Among them, the second adhesive 25 and the first adhesive 23 are strip structures made of the same material.

[0038] Example 3

[0039] Example 3 includes the T-shaped strip from Example 1 or Example 2; the identical parts will not be described again. Please refer to... Figure 4-5 The windproof curtain shown includes a T-shaped strip; the splicing edge 24 and the windproof curtain body 32 are ultrasonically welded together, and the T-shaped strip is slidably engaged in the groove 31 of the guide rail 30. The first adhesive is a hot melt adhesive that can be heated and melted ultrasonically. The edge of the windproof curtain body 32 is aligned with the splicing edge 24, and then directly welded together using an ultrasonic welding machine. This design is a stitched structure, making the windproof curtain body 32 more aesthetically pleasing and providing better overall integrity. The curtain body can be a windproof curtain, window screen, curtain fabric, etc., without specific limitations.

[0040] Preferably, the toughness of the spliced ​​edge is greater than that of the windproof curtain, and the overlap width between the windproof curtain body 32 and the spliced ​​edge 24 is greater than half the width of the spliced ​​edge. The spliced ​​edge 24 has high toughness; because its toughness is greater than that of the windproof curtain body 32, this design prevents breakage at the connection between the spliced ​​edge 24 and the windproof curtain body 32, resulting in better strength and toughness.

[0041] Preferably, the windproof curtain body is made of one of the following: polyester, nylon, polystyrene fabric, non-woven fabric, or polyethylene fabric. The windproof curtain body uses commonly available materials, which are low in cost, technologically mature, and have high production efficiency.

[0042] In summary, the key design feature of this invention lies in the fact that the main fabric body 21 wraps around the elastic strip 10, and the connecting edge 22 extending from the main fabric body 21 clamps the splicing edge 24. The main fabric body 21, the elastic strip 10, and the splicing edge 24 are bonded together under the hot pressure of a mold to prefabricate a T-shaped strip. Curtains, windproof curtains, etc., can be bonded to the splicing edge using ultrasonic welding. This design eliminates the need for sewing, resulting in higher work efficiency. Because the T-shaped strip is prefabricated, it is easier to align the T-shaped strip with the edge of the curtain later, reducing the difficulty for workers in aligning the splicing edge 24 with the curtain, and further improving production efficiency.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A T-shaped strip, characterized in that: It includes an elastic strip and a low-friction fabric; the inner surface of the low-friction fabric is provided with a heat-adhesive first adhesive; the low-friction fabric wraps around the elastic strip; wherein, the low-friction fabric includes a fabric body and a connecting edge extending from the fabric body; the connecting edge clamps the splicing edge and is bonded to the splicing edge.

2. A T-shaped strip according to claim 1, characterized in that: The connecting edge is heated and shaped to fit tightly against the main fabric body.

3. A T-shaped strip according to claim 1 or 2, characterized in that: The joining position of the connecting edges is at the center line of the elastic strip, or at a position 1-2 mm away from the center line of the elastic strip.

4. A T-shaped strip according to claim 1, characterized in that: A second adhesive that can be bonded by heat is also provided on the splicing edge, and the second adhesive is exposed on the splicing edge.

5. A T-shaped strip according to claim 1, characterized in that: The elastic strip is an elastic steel strip or an elastic plastic strip.

6. A T-shaped strip according to claim 1 or 5, characterized in that: The low-friction fabric is one of the following: nylon fabric, polyester fabric, aramid fabric, acrylic fabric, nylon fabric, spandex fabric, vinylon fabric, polypropylene fabric, and polyester twill fabric.

7. A T-shaped strip according to claim 4, characterized in that: The first adhesive and the second adhesive are one of the following: ethylene-vinyl acetate copolymer hot melt adhesive, polyamide hot melt adhesive, PET hot melt adhesive, PU hot melt adhesive, SDS hot melt adhesive, polyethylene hot melt adhesive, polypropylene hot melt adhesive, and polyester hot melt adhesive.

8. A windproof curtain, characterized in that: The invention includes a T-shaped strip as described in any one of claims 1-7; the splicing edge is ultrasonically welded to the windproof curtain body, and the T-shaped strip is slidably engaged in the groove of the guide rail.

9. A windproof curtain according to claim 8, characterized in that: The toughness of the spliced ​​edge is greater than that of the windproof curtain, and the overlap width between the windproof curtain body and the spliced ​​edge is greater than half the width of the spliced ​​edge.

10. A windproof curtain according to claim 8 or 9, characterized in that: The windproof curtain body is made of one of the following: polyester, nylon, polystyrene fabric, non-woven fabric, or polyethylene fabric.

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