Edge closing strip
By using a cold-bent metal sheet design and a bolt locking mechanism, the problem of warping and loosening of metal edge trim caused by temperature and humidity changes is solved, achieving stable installation and high-precision edge protection for wooden boards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-03-17
AI Technical Summary
Metal edge trim strips on wooden boards are prone to warping and loosening due to temperature and humidity changes, resulting in unstable installation, affecting aesthetics and structural stability.
The design utilizes cold-formed thin metal sheets, combined with elastic deformation and bolt locking. Through the cooperation of the snap-fit part and the mounting groove, it forms a self-positioning characteristic, increasing the reliability of the connection, and avoids stress concentration through the arc transition structure.
It enables the stable installation of metal edge trim strips, prevents edge wear and deformation, improves installation efficiency and connection reliability, and is suitable for high-precision edge trimming of furniture and decorative panels.
Smart Images

Figure CN223994599U_ABST
Abstract
Description
Technical Field
[0001] This utility model applies to the field of wood panel edge finishing technology and provides an edge finishing strip. Background Technology
[0002] Edge finishing of wood panels refers to the process of sealing and decorating the edges of wood panels by installing edge strips. The purpose is to protect the edges of the wood panels from damage and enhance their aesthetic appearance. Edge finishing not only effectively prevents the wood panels from impacts, scratches, or wear during use, but also provides waterproofing and moisture resistance, extending the lifespan of the wood panels.
[0003] Metal edge trims are typically made of materials such as aluminum alloy and stainless steel. Due to their excellent durability, corrosion resistance, and aesthetic appearance, they are often used as ideal materials for finishing wood panel edges. The manufacturing process of metal edge trims generally includes stamping, bending, and surface treatment of the metal material to ensure sufficient strength and stability.
[0004] However, problems such as warping and loosening often occur when applying metal edge trims to wooden boards. Due to the expansion and contraction of the wood, the metal edge trim may experience an incompatible mechanical reaction with the wood due to changes in temperature and humidity during long-term use, causing the edge trim to warp or detach from the wood. Furthermore, the way the metal edge trim is fixed may also lead to unstable installation, especially in areas under high stress, potentially causing loosening and affecting the overall aesthetics and structural stability of the wooden board. Utility Model Content
[0005] To address the aforementioned deficiencies, the present invention aims to provide an edge trimming strip to solve the problems mentioned in the background art. The device includes an edge trimming strip, which includes a body. The body is composed of a first connecting part, a snap-fit part, a second connecting part, a third connecting part, and a fourth connecting part connected in sequence.
[0006] One end of the main body extends in one direction to form a first connecting part and a second connecting part with the same plane. A snap-fit part protruding upward is provided between the first connecting part and the second connecting part. The second connecting part is bent 90° clockwise and extended to form a third connecting part. The third connecting part is bent 90° clockwise and extended to form a fourth connecting part. The first connecting part is provided with a plurality of screw holes. A bolt joint that mates with the screw holes is fixedly connected to the fourth connecting part.
[0007] Furthermore, the end of the fourth connecting portion away from the third connecting portion extends to the same length as the end of the first connecting portion.
[0008] Furthermore, the end of the fourth connecting portion away from the third connecting portion extends beyond the end of the first connecting portion.
[0009] Furthermore, the entire assembly consisting of the first connecting part, the second connecting part, and the snap-fit part has a plurality of cutting grooves evenly provided along the length direction of the edge trim.
[0010] Furthermore, the first connecting portion, the second connecting portion, the third connecting portion, and the fourth connecting portion have the same thickness.
[0011] Furthermore, the second connecting part and the third connecting part have an arc-shaped transition.
[0012] Furthermore, the third connecting part and the fourth connecting part have an arc-shaped transition.
[0013] This invention utilizes a cold-formed thin metal sheet structure, achieving lightweight while maintaining structural strength. A dual fixing mechanism combining elastic deformation and bolt locking significantly improves installation efficiency and connection reliability. The interlocking design of the snap-fit part and the mounting groove gives the edge trim self-positioning characteristics, and the introduction of the cutting groove effectively improves the flexibility of long components. The rounded transition structure not only enhances aesthetics but also avoids stress concentration at right-angle bends. While enabling quick disassembly and maintenance, it perfectly conforms to the edges of the sheet material, providing 360° wrapping protection and effectively preventing edge wear and deformation. It is particularly suitable for applications requiring high-precision edge finishing, such as furniture and decorative panels. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the side structure of the edge trim strip;
[0015] Figure 2 Exploded view of the installation structure of the edge trim and tabletop;
[0016] Figure 3 An exploded view from a second perspective of the installation structure of the edge trim and the tabletop;
[0017] Figure 4 This is a schematic diagram of the edge trim strip from an upward angle.
[0018] In the diagram: 01-Tabletop; 011-Top mounting groove; 012-Bottom mounting groove; 013-Snap-fit groove; 014-Joint groove; 02-Bolt; 1-Edge trim; 101-Snap-fit part; 102-Cutting groove; 11-First connecting part; 12-Second connecting part; 13-Third connecting part; 14-Fourth connecting part; 15-Bolt joint; 16-Screw hole. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.
[0023] See Figure 1-4 The purpose of this utility model is to provide an edge trim strip, including the body of the edge trim strip 1. The body is made of a thin metal sheet, which is cold-bent into shape by a cold bending forming machine. The body is composed of a first connecting part 11, a snap-fit part 101, a second connecting part 12, a third connecting part 13 and a fourth connecting part 14 connected in sequence.
[0024] See appendix Figure 1 One end of the body extends in one direction to form a first connecting part 11 and a second connecting part 12 with the same plane. An upwardly protruding snap-fit part 101 is provided between the first connecting part 11 and the second connecting part 12. The snap-fit part 101 is formed by bending the mold with a plate press during the processing. After bending with the plate press, the first connecting part 11 and the second connecting part 12 are still located in the same plane. The upwardly protruding snap-fit part 101 can provide a snap-fit function with the wooden board during installation.
[0025] The second connecting portion 12 is bent 90° clockwise and extended to form the third connecting portion 13, that is, the third connecting portion 13 is perpendicular to the second connecting portion 12. The third connecting portion 13 is bent 90° clockwise and extended to form the fourth connecting portion 14. The end of the fourth connecting portion 14 away from the third connecting portion 13 extends to the same length or beyond the end of the first connecting portion 11; that is, the total length of the fourth connecting portion 14 is greater than or equal to the sum of the lengths of the first connecting portion 11, the second connecting portion 12 and the snap-fit portion 101.
[0026] The first connecting part 11 is provided with multiple screw holes 16, and the fourth connecting part 14 is fixedly connected with a bolt joint 15 that mates with the screw holes 16. A bolt 02 can be passed through the screw hole 16, and the bolt 02 can be threadedly connected to the bolt joint 15 after passing through the screw hole 16.
[0027] See appendix Figure 2 and attached Figure 3 In actual installation, the edge trim 1 can be installed on the outer edge of the wooden board or other board material to finish the edge of the board. This embodiment uses a solid wood tabletop 01 for illustration.
[0028] The top of the outer edge of the tabletop 01 has a top mounting groove 011 that matches the thickness of the fourth connecting part 14, and the bottom of the outer edge of the tabletop 01 has a bottom mounting groove 012 that matches the thickness of the first connecting part 11 and the second connecting part 12. The top mounting groove 011 has a joint groove 014 that matches the position of the bolt joint 15, and the bottom mounting groove 012 has a snap-fit groove 013 that matches the snap-fit part 101. During installation, the edge trim 1 is pushed into the outer edge of the tabletop 01, and the bolt joint 15 slides into the joint groove 014. At this time, the edge trim 1 undergoes elastic deformation until the snap-fit part 101 snaps into the snap-fit groove 013. The snap-fit part 101 and the snap-fit groove 013 are locked together. The tabletop 01 has a through hole that matches the position of the bolt joint 15, and the bolt 02 can be inserted into the through hole. Workers can use the bolt 02 to fix the edge trim 1 to the edge of the tabletop 01, achieving the edge trimming function.
[0029] Preferably, the entire assembly consisting of the first connecting part 11, the second connecting part 12, and the snap-fit part 101 is provided with a plurality of cutting grooves 102 evenly distributed along the length direction of the edge strip 1. The cutting grooves 102 make the whole assembly more flexible and easier to install.
[0030] Preferably, the first connecting portion 11, the second connecting portion 12, the third connecting portion 13, and the fourth connecting portion 14 have the same thickness.
[0031] Preferably, the second connecting portion 12 and the third connecting portion 13 have an arc-shaped transition.
[0032] Preferably, the third connecting part 13 and the fourth connecting part 14 have an arc-shaped transition.
[0033] In summary, the installation and usage method and structural principle of this edge trim 1 are as follows: During installation, firstly, a top mounting groove 011 and a bottom mounting groove 012 are machined on the outer edge of the tabletop 01. The top mounting groove 011 has a joint groove 014, and the bottom mounting groove 012 has a snap-fit groove 013. Align the fourth connecting part 14 of the edge trim 1 with the top mounting groove 011 and push it in, so that the bolt joint 15 slides in along the joint groove 014. At this time, the edge trim 1, which is a thin metal sheet structure, undergoes elastic deformation. When it is pushed in until the snap-fit part 101 aligns with the snap-fit groove 013 of the bottom mounting groove, the snap-fit part 101 automatically engages through the rebound force. Then, the bolt 02, which passes through the through hole of the tabletop, is screwed into the bolt joint 15 of the fourth connecting part 14, forming a threaded fastening with the screw hole 16 of the first connecting part 11, thus completing the mechanical locking.
[0034] The edge trim 1 forms a three-dimensional frame structure through continuous bending of the first to fourth connecting parts. The fourth connecting part extends to cover the front component, ensuring the integrity of the edge wrapping. The spacing of the cutting grooves enhances the elastic deformation capacity of the connecting parts, while the arc transition between the second and third connecting parts optimizes stress distribution.
[0035] Therefore, the cold-formed thin metal sheet structure achieves lightweighting while ensuring structural strength. A dual fixing mechanism of elastic deformation and bolt locking significantly improves installation efficiency and connection reliability. The interlocking design of the snap-fit part and the mounting groove gives the edge trim self-positioning characteristics, and the introduction of the cutting groove effectively improves the flexibility of long components. The rounded transition structure not only enhances aesthetics but also avoids stress concentration at right-angle bends. While enabling quick disassembly and maintenance, it perfectly fits the edge of the sheet material, providing 360° wrapping protection and effectively preventing edge wear and deformation. It is particularly suitable for applications requiring high-precision edge finishing, such as furniture and decorative panels.
[0036] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.
Claims
1. A hemming strip, characterized in that The application relates to a closing strip (1) comprising a body which is sequentially connected by a first connecting part (11), a clamping part (101), a second connecting part (12), a third connecting part (13) and a fourth connecting part (14). One end of the body extends to one direction to form the first connecting part (11) and the second connecting part (12) with the same plane, the clamping part (101) is arranged between the first connecting part (11) and the second connecting part (12) and protrudes upward, the second connecting part (12) is bent by 90 degrees clockwise and extends to form the third connecting part (13), the third connecting part (13) is bent by 90 degrees clockwise and extends to form the fourth connecting part (14), a plurality of screw holes (16) are arranged on the first connecting part (11), and the fourth connecting part (14) is fixedly connected with a bolt joint (15) matched with the screw holes (16).
2. The hemming strip of claim 1, wherein The fourth connecting part (14) extends to the same length as one end of the first connecting part (11) away from one end of the third connecting part (13).
3. The hemming strip of claim 1, wherein The fourth connecting part (14) extends to exceed one end of the first connecting part (11) away from one end of the third connecting part (13).
4. The hemming strip of claim 1, wherein, The first connecting part (11), the second connecting part (12) and the clamping part (101) are uniformly provided with a plurality of cutting grooves (102) along the length direction of the closing strip (1).
5. The hemming strip of claim 1, wherein, The first connecting part (11), the second connecting part (12), the third connecting part (13) and the fourth connecting part (14) have equal thicknesses.
6. The edging strip of claim 1, wherein The second connecting part (12) and the third connecting part (13) are circularly arc-shaped.
7. The hemming strip of claim 1, wherein The third connecting part (13) and the fourth connecting part (14) are circularly arc-shaped.