screw

Abstract

The present invention provides a screw having an interlocking hole that prevents the screw from coming loose during rotation and provides driving force. [Solution] The screw according to the present invention is a screw having an interlocking hole that provides a function to prevent it from coming loose during rotation and a driving force. The screw has an interlocking hole 2. The interlocking hole 2 is composed of a plurality of grooves 21 that are in communication with each other and extend inclined downward from the top of the interlocking hole 2, and a plurality of double-sided load walls 22 installed between each groove 21. The distance between the plurality of grooves 21 that extend inclined into the interlocking hole 2 is defined as the extension angle A, and each double-sided load wall 22 installed between each groove 21 includes at least one obtuse angle B.

Description

Technical Field

[0001] The present invention relates to a screw, and more specifically, to a screw having a screw engagement hole that is provided with a function of preventing disengagement during rotation and a strong driving force. Background Art

[0002] In the design and creation of various general known screws, a recessed engagement hole for inserting a screwdriver to drive the screw is disposed on the screw head at the top end of each screw. In the early prior art creations, slotted grooves were the mainstream. Summary of Invention Problems to be Solved by the Invention

[0003] However, when a flathead screwdriver is inserted into the conventional slotted groove to rotate the screw, due to the deviation of the insertion angle and the instability of the direction of rotational force, the slotted groove of the screw is usually prone to damage when receiving force, making the insertion and removal of the screw difficult and inconvenient.

[0004] Therefore, in the screw industry, new technological development is being advanced and continuous improvements are being made. For example, there are creations of cross-shaped grooves, square engagement holes, and engagement holes of various shapes. However, in the creations of various related known engagement hole technologies, each has a different technical concept and creation operation method, and also has respective drawbacks. Therefore, when a screwdriver is inserted into the screw engagement hole for driving, it is easy to disengage, and the drawback of insufficient rotation efficiency when the engagement hole is driven by receiving force has not been solved.

[0005] The present invention has been made in view of the above circumstances, and an example of the problem to be solved is to overcome the above-mentioned issues. That is, the present invention aims to provide a screw having an engagement hole that is provided with a function of preventing disengagement during rotation and a strong driving force. Means for Solving the Problems

[0006] To achieve the above objective, one aspect of the present invention, a screw having an interlocking hole that provides a function to prevent the screw from coming loose during rotation and a strong driving force, is provided with an interlocking hole. The interlocking hole is composed of a plurality of grooves that communicate with each other and extend inclined downward from above the interlocking hole, and a plurality of double-sided load walls including at least one obtuse angle installed between each groove.

[0007] Preferably, the extension angle is the distance between the multiple grooves that extend inclined into the interlocking hole. The extension angle is in the range of 70° to 90°.

[0008] Preferably, the angle of the inclined surface of the groove portion extending from the interlocking hole so as to slope downward is in the range of 15° to 25°.

[0009] Preferably, at least one double-sided load-bearing wall having an obtuse angle is installed between each groove, and the obtuse angle of the double-sided load-bearing wall is in the range of 120° to 140°.

[0010] Preferably, the width of the double-sided load-bearing wall installed between the mutually adjacent grooves of the interlocking holes is narrower than the obtuse angle between the two corresponding double-sided load-bearing walls.

[0011] Preferably, at least one obtuse-angled double-sided load-bearing wall is installed as an inclined surface from top to bottom, with the inclination angle being in the range of 2° to 4°. [Effects of the Invention]

[0012] As this invention is configured as described above, it produces the following effects. 1. To achieve a novel screw interlocking hole structure that prevents detachment when a screwdriver rotates a screw and drives the screw to rotate with a wide load surface. 2. To provide novel and advanced technological creations that effectively improve the effectiveness of screw usage. 3. Effectively improve the usability and economic benefits of the screw industry.

[0013] The following information will become clear from the description in the specification and drawings described later. [Brief explanation of the drawing]

[0014] [Figure 1] This is a schematic top view showing a screw according to one embodiment of the present invention. [Figure 2] This is a schematic diagram showing a screw according to one embodiment of the present invention. [Figure 3] This is an enlarged view of Figure 1. [Modes for carrying out the invention]

[0015] The present invention will be described below through embodiments of the invention, but these embodiments are not intended to limit the scope of the invention covered by the utility model registration claims. Furthermore, not all combinations of features described in the embodiments are necessarily essential to the solution of the invention.

[0016] The embodiments of this invention will be described in detail below with reference to Figures 1 to 3.

[0017] The screw body configuration according to this embodiment comprises a screw head 1, an interlocking hole 2 installed in the screw head 1 and recessed inward, and a screw shaft 3 installed at the lower end of the screw head 1. The interlocking hole 2 body has a maximum outer diameter E of the interlocking hole and a maximum inner diameter E1 that is recessed inward, and is composed of a plurality of grooves 21 that are in communication with each other and enter in an inclined manner from top to bottom, and at least one obtuse-angled double-sided load wall 22 installed between each groove 21.

[0018] As shown in the figure, the distance between the multiple grooves 21 that extend inclined into the interlocking hole 2 is defined as the extension angle A. The extension angle A is in the range of 70° to 90°, and the inclination angle C of the grooves 21 that extend inclined from top to bottom into the interlocking hole 2 is in the range of 15° to 25°.

[0019] In such a case, as shown in Figure 1 and Figure 3, at least one obtuse-angle double-sided load wall 22 is disposed between each groove portion 21 of the interlocking hole 2, and the obtuse angle B of the double-sided load wall 22 ranges from 120° to 140°. The width F21 of the double-sided load wall 22 disposed between the mutually adjacent groove portions 21 of the interlocking hole 2 is narrower than the mutual obtuse-angle interval F11 of the corresponding two double-sided load walls 22.

[0020] Further, as shown in Figure 2, at least one obtuse-angle double-sided load wall 22 is disposed in the interlocking hole 2 as an inclined surface facing from top to bottom, and the inclination angle D of the inclination ranges from 2° to 4°.

[0021] The screw head is recessed with an inwardly recessed interlocking hole 2 for inserting a screwdriver in an engaging manner and interlocking to rotate the entire screw for screwing in and removing. The main body of the interlocking hole 2 is configured to be capable of providing a novel screw interlocking hole structure that, by a plurality of groove portions 21 that communicate with each other and enter in an inclined manner from top to bottom, and at least one obtuse-angle double-sided load wall 22 disposed between each groove portion 21, rotates the screw to prevent the screwdriver from slipping off when the screwdriver is inserted in an engaging manner for interlocking, and drives the screw to rotate via a wide load surface.

[0022] Therefore, the creation of the structure according to the present invention reliably achieves the advanced practicality and effects described below. 1. A novel screw interlocking hole structure is achieved that prevents slipping when the screwdriver rotates the screw, and drives the screw to rotate via a wide load surface. 2. A new and advanced technical creation is provided that effectively improves the use effect of the screw. 3. The applicability and economic benefits of the screw industry are effectively improved.

[0023] The embodiments of the present invention have been described in detail above with reference to the drawings, but the specific configuration is not limited to these embodiments, and design changes and the like within the scope not departing from the gist of the present invention are also included.

Description of Reference Numerals

[0024] 1 screw head 2 interlocking holes 21 Groove 22 Double-sided load-bearing wall 3 Screw shaft A Extension angle B obtuse angle C Tilt angle D Tilt angle E Maximum outer diameter of interlocking hole E1 Maximum inner diameter of interlocking hole F11 Obtuse interval F21 width

Claims

1. A screw having an interlocking hole that provides both a function to prevent it from coming loose during rotation and a driving force, The aforementioned screw is equipped with an interlocking hole, The interlocking holes are composed of a plurality of grooves that are in communication with each other and extend inclined downward from above the interlocking holes, and a plurality of double-sided load walls installed between each of the grooves. The distance between the multiple grooves that extend inclined into the interlocking hole is defined as the extension angle. A screw characterized in that the double-sided load wall installed between each of the grooves includes at least one obtuse angle.

2. The screw according to claim 1, characterized in that the extension angle, which is the spacing between the plurality of grooves that extend inclined into the interlocking hole, is in the range of 70° to 90°.

3. The screw according to claim 1, characterized in that the angle of inclination of the groove portion extending from the interlocking hole so as to be inclined from above to below is in the range of 15° to 25°.

4. The screw according to claim 1, characterized in that the obtuse angle of at least one obtuse-angled double-sided load wall installed between each of the grooves is in the range of 120° to 140°.

5. The screw according to claim 1, characterized in that the width of the double-sided load-bearing wall installed between the mutually adjacent grooves of the interlocking holes is narrower than the distance between the obtuse angles of the two corresponding double-sided load-bearing walls.

6. The screw according to claim 1, characterized in that the inclination angle from above to below the double-sided load wall is in the range of 2° to 4°.

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