Nut kit structure

The nut kit with a spherical and angular design addresses the issue of exposed screw tips by providing protection and ease of use, enhancing safety and convenience in screw installations.

TWM685085UActive Publication Date: 2026-07-11TAIWAN JI TI FURNITURE PARTITION
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Patent Information

Application Number
TW114214006
Authority / Receiving Office
TW · TW
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-12-31
Publication Date
2026-07-11
Estimated Expiration
2035-12-30

AI Technical Summary

Technical Problem

Existing nut accessories fail to provide a convenient and protective solution for the exposed tips of self-tapping screws, leading to potential cuts, scratches, and infections, especially in home environments and mass-produced furniture assembly.

Method used

A nut kit structure with a sleeve element featuring a spherical portion and an angular portion, made of elastic polymer, that fits over the screw tip to prevent exposure and allows easy installation and removal.

Benefits of technology

The nut kit effectively protects users from screw tip injuries and prevents damage to surrounding objects while ensuring easy assembly and disassembly.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure IMG-2_DRAW_114214006-A0305-14-0001-1
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  • Figure IMG-2_DRAW_114214006-A0305-14-0003-3
    Figure IMG-2_DRAW_114214006-A0305-14-0003-3
Patent Text Reader

Abstract

This invention provides a nut assembly structure, comprising: a sleeve element shaped like a nut, having a spherical portion at one end and a angular portion at the other end; the outer diameter of the spherical portion is smaller than that of the angular portion; the angular portion is prismatic in shape and has a sleeve hole recessed at one end opposite the spherical portion; thereby, this invention can be fitted onto the tip of various screws (such as general screws or self-tapping screws) to prevent the portion of the screw extending beyond the material during assembly from being caught and enclosed by the sleeve element. The design incorporates features to prevent workers or users from accidentally touching the screw tips and getting injured, effectively protecting their hands and preventing cuts. The spherical part provides a smooth, rounded feel, preventing scratches on surrounding objects, while the angular part allows users to easily apply force to engage or disengage the screw tip, enhancing the ease of use. Furthermore, the simple overall structure of this invention allows for easy direct mass production, resulting in extremely low manufacturing costs, making it applicable to various products that use screws for fastening.
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Description

Nut kit structure Technical Field

[0001] This invention is a nut kit structure, specifically one that can be fitted onto the tip of a screw to prevent cuts or scratches to surrounding objects, thereby improving the safety of products secured by screws during use, while also allowing for easy fitting and removal of the screw tip. Prior Technology

[0002] Note that self-tapping screws and other types of screws are widely used in furniture assembly, woodworking, and the fastening of household appliances. They can directly penetrate the material to form the required threads, thereby fixing the materials together. However, the nuts commonly used in the market need to be used with bolts that have exposed threads. They are not suitable for screws such as self-tapping screws that only have a tip and rely on the cutting of the self-tapping thread to fasten. Therefore, there are currently no nut accessories that can be directly fitted to protect the tip of self-tapping screws after installation.

[0003] However, in the assembly of many furniture or general materials, the tip of a self-tapping screw often protrudes beyond the material after penetrating it, creating an exposed sharp end on the outside of the material. When users touch or move these furniture or objects, they are very likely to accidentally touch the exposed screw tip, causing cuts, abrasions, or even infections due to skin abrasion. Such hazards caused by protruding screw tips are more common in home environments, public places, or mass-produced furniture assembly operations, and existing protective accessories mostly fail to provide a convenient, quick-installation, and protective solution for screw tips.

[0004] In view of this, the creator has specifically researched and improved the protection of protruding screw tips, hoping to improve the above-mentioned problems with a better design. After a long period of research and development and continuous testing, this design was finally born. Summary of the Invention

[0005] Therefore, this invention is made to solve the aforementioned problems. To achieve the above objectives, we, the inventors, provide a nut kit structure, which includes: a sleeve element, which is arranged in the shape of a nut, thereby forming a spherical portion at one end and an angular portion at the other end; the outer diameter of the spherical portion is smaller than that of the angular portion; the angular portion is arranged in the shape of a prism, and a sleeve hole is recessed at one end opposite to the spherical portion.

[0006] According to the nut kit structure described above, the socket hole is a round hole.

[0007] According to the nut assembly structure described above, the depth of the socket hole is equal to or greater than the length of the angular portion.

[0008] According to the nut assembly structure described above, the length of the angular portion is greater than that of the spherical portion.

[0009] According to the nut kit structure described above, the angular part is set in a hexagonal prism shape.

[0010] According to the nut assembly structure described above, the angular part is shaped into an end face at one end, and the spherical part is integrally formed and correspondingly disposed at the end face.

[0011] According to the nut kit structure described above, the length and outer diameter of the angular portion are set to be the same.

[0012] According to the nut kit structure described above, the socket element is made of an elastic polymer material.

[0013] According to the nut kit structure described above, the socket element is made of polypropylene (PP).

[0014] Based on the above explanation and settings, it is evident that this creation possesses the following main advantages and effects, which are detailed below:

[0015] 1. This invention, through the corresponding arrangement of a spherical portion at one end and a angular portion at the other end, allows the socket element to be directly fitted and covered by the exposed tip of a self-tapping screw or a regular screw after it penetrates the material. This effectively prevents users from being cut or scratched by contact with the screw tip when touching, moving, or operating furniture or equipment, thereby reducing the risk of wound infection. At the same time, the smooth arc shape provided by the spherical portion prevents the screw from scratching or abrading surrounding objects after installation, thus improving overall safety and protection of surrounding items.

[0016] 2. The corner portion of this invention adopts a prismatic (e.g., hexagonal) design, allowing users to easily apply force with their fingers to engage or disengage the connector from the screw tip using the force-bearing surface provided by its shape. This enables quick and easy assembly, subsequent maintenance, disassembly, or repositioning, improving operational convenience. Furthermore, the invention features a simple structural design and can be directly mass-produced from elastic polymer materials (such as polypropylene PP), resulting in low cost and applicability to various screw sizes and tip protection requirements, giving it high versatility and commercial value. Simple Explanation of the Diagram

[0017] The first image is a three-dimensional illustration of this creation. The second image is a three-dimensional illustration of this work from another perspective. Figure 3 is a cross-sectional view of this creation fitted onto the tip of a screw, and a schematic diagram of its usage. Implementation

[0018] This invention relates to a nut assembly structure. Its implementation methods, characteristics, and effects are described in detail below with several preferred and feasible embodiments and accompanying drawings, so that you may gain a deeper understanding and appreciation of this invention.

[0019] First, please refer to Figures 1 to 3. This invention provides a nut kit structure, which includes:

[0020] A connecting element 1 is shaped like a nut, with a spherical portion 11 at one end and a angular portion 12 at the other end. The outer diameter of the spherical portion 11 is smaller than that of the angular portion 12. The angular portion 12 is shaped like a prism, and a connecting hole 13 is recessed at one end opposite to the spherical portion 11. The connecting hole 13 is used to be fitted onto the tip 21 of a screw 2 (such as a general screw, bolt, stud, or self-tapping screw).

[0021] Firstly, regarding the arrangement of the socket 13, in one embodiment it can be a circular hole to facilitate processing and molding, and to facilitate demolding; and its depth can be adjusted according to actual needs, so that its depth is greater than or equal to the length of the corner portion 12, so that the tip 21 of the screw 2 can be completely inserted into the socket 13 and completely covered;

[0022] Regarding the configuration of the spherical portion 11 and the angular portion 12, since the angular portion 12 is arranged in a polygonal column shape, an end face 121 is formed at one end. The spherical portion 11 is integrally formed and correspondingly disposed at the end face 121. In one embodiment, the spherical portion 11 and the angular portion 12 can be integrally formed and can be injection molded from an elastic polymer material, such as polypropylene (PP), so that it has a moderate elastic deformation capability when it is fitted to the tip 21 of the screw 2. By setting the fitting hole 13 to be slightly smaller than the outer diameter of a normal screw 2, it can elastically expand when fitted, so that it elastically and completely and reliably covers the tip 21 of the screw 2, thereby providing a reliable and effective covering effect.

[0023] In one embodiment, the corner portion 12 can be arranged in a hexagonal prism shape, and its length can be greater than that of the spherical portion 11, so as to facilitate the user to apply force with his fingers to press the corner portion 12 to perform the operation of fitting or removing the screw 2; while the arc surface of the spherical portion 11 can provide a smooth feel, avoid scratching when the user touches furniture or objects, and reduce collision damage to surrounding items when moving or wiping.

[0024] In one embodiment, the length and outer diameter of the corner portion 12 are set to be the same, so as to make its overall visual appearance more harmonious.

[0025] Therefore, as shown in Figure 3, when the screw 2 is tapped and locked between materials 3 (such as wood, plastic or composite boards), its tip 21 will protrude from the back of the material 3 after penetrating it. In this case, the user can align the socket element 1 of this invention with the tip 21 of the screw 2 through its socket hole 13 and press the corner part 12 with their finger so that the tip 21 of the screw 2 gradually extends into the socket hole 13 and is completely covered therein. In this way, the tip 21 of the screw 2 can be effectively isolated from the material, and the user can avoid injury from accidental contact with the tip 21 when touching, moving or using finished products made of material 3 (such as furniture).

[0026] Furthermore, through the design of the corner portion 12, the corresponding force-applying surface allows the user to easily remove the socket element 1 by pulling or rotating the corner portion 12 when disassembling or adjusting the position of the screw 2, without causing danger due to the exposed tip 21 when operating on the back of the material 3;

[0027] Because of its simple structure and lightweight materials, this invention can be mass-produced and is applicable to various types of furniture, display racks, woodworking projects, and related products that require screws to penetrate the board, thus providing high ease of use and improved safety.

[0028] In summary, the technical means disclosed in this work are not only unprecedented, but also achieve the intended purpose and effect. Therefore, it possesses both novelty and progressiveness, and is indeed a novel patent as defined by the Patent Law. In terms of its overall structure, it has met the statutory requirements of the Patent Law. Therefore, a novel patent application is filed in accordance with the law.

[0029] However, the above description is only a preferred embodiment of this invention and should not be used to limit the scope of this invention. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of this invention should still fall within the scope of the patent application of this invention.

[0030] 1: Socket component 11: Spherical part 12: Corner 121: End face 13: Socket 2: Screws 21: Tip 3: Materials

Claims

1. A nut assembly structure comprising: a sleeve element, which is shaped like a nut, having a spherical portion at one end and an angular portion at the other end; the outer diameter of the spherical portion being smaller than that of the angular portion; the angular portion being prismatic in shape and having a sleeve hole recessed at one end opposite to the spherical portion.

2. The nut kit structure as described in claim 1, wherein, The socket is a round hole.

3. The nut kit structure as described in claim 1, wherein, The depth of the socket is equal to or greater than the length of the angular portion.

4. The nut kit structure as described in claim 1, wherein, The length of the angular part is greater than that of the spherical part.

5. The nut kit structure as described in claim 1, wherein, The angular part is set in a hexagonal prism shape.

6. The nut kit structure as described in claim 1, wherein, The angular portion has an end face at one end, and the spherical portion is integrally formed and correspondingly disposed at the end face.

7. The nut kit structure as described in claim 1, wherein, The length and outer diameter of the angular portion are set in the same way.

8. The nut kit structure as described in claim 1, wherein, The socket element is made of a flexible polymer material.

9. The nut kit structure as described in claim 8, wherein, The socket element is made of polypropylene (PP).