TW202407225A - Improvement of screw head characterized in that the ability of cutting wood fibers more sharply and easily and the groove having more abundant chip holding space can be achieved, thereby really making it easier to screw the screw head and allowing the surface of the workpiece to be even without bumping - Google Patents

Abstract

Disclosed is the improvement of a screw head, especially referring to the improvement of the practicality and progress of the patent case TWM436104 in prior art. When the screw head is screwed into a workpiece, the effect of generating chips, holding chips and internal pressed residual chips can be enhanced efficiently; and when the screw head is fitted onto the surface of the workpiece, the phenomenon of causing the bump around the head can be avoided. The improvement of the screw head is to provide at least one integrated strip-like groove inwards recessed into the tapered neck of the screw head. Both sides of the groove are provided with at least one blade extended toward the side. The blade is integrally formed to be outwards protruded on the surface of the tapered neck, and a perpendicular or non-perpendicular included angle is formed between the blades of both sides of the groove and the axis line of the screw head. By the arrangement of at least one groove and several blades arranged in an intermittently spiral manner or several blades arranged in an intermittently non-spiral manner, the ability of cutting wood fibers more sharply and easily and the groove having more abundant chip holding space can be achieved, thereby really making it easier to screw the screw head and allowing the surface of the workpiece to be even without bumping.

Description

Improvement of screw head

An improvement of the screw head, in particular, the tapered neck of the screw head is provided with at least one strip-shaped groove that is inwardly recessed into the tapered neck of the screw head, and has at least one sideward edge on both sides of the groove. The extended blade is integrally formed and protrudes outward from the surface of the tapered neck of the screw head, and there is a vertical or non-vertical angle between the blades on both sides of the groove and the axis of the screw head.

The technology of providing at least one spiral rib that rotates more than 360 degrees on the screw head and neck and the spiral rib to form a screwdriver blade is a technical feature of the patent approval TWM436104 created by the author of this early technology. Created by this early technology It can achieve the expected generation or exposure of wood fiber burrs in the screw hole when the screw head sinks into the workpiece, so as to achieve a smooth and clean effect around the screw hole of the workpiece.

However, in terms of actual use efficiency, there are the following shortcomings that need to be improved:

(1) The known early technology creation TWM436104 screw head and neck has at least one spiral rib that rotates more than 360 degrees. When the screw head sinks into the workpiece, the continuous spiral blade of at least 360 degrees cuts the wood fibers. It is easy to produce incomplete cutting, which affects the cutting effect of the spiral blade.

(2) Due to the known early technological creation of the TWM436104 screw head and neck, there is a lack of storage space for the cut debris and incompletely cut debris, which will cause the screwdriver blade to cut less quickly, and the crowded debris will also cause the screw head to sink. Greater resistance to entering the workpiece.

(3) Due to the limited cutting effect of the known early technological creation TWM436104 spiral blade and the lack of space for holding the debris after cutting and the debris that has not been completely cut, the screw head cannot achieve the ideal lightness and labor-saving when sinking into the workpiece.

(4) Since the screw head and neck lack space to accommodate the cut debris and incompletely cut debris, extrusion of excessive debris can easily cause the screw head to flatten the surface of the workpiece around the screw head. The phenomenon of bunching up.

Therefore, there is indeed a need to improve the early technological creation of the creator of this case in order to effectively improve the actual practical progress and industrial utilization of the patented technological creation.

The purpose of this project "Improvement of Screw Head" is to:

(1) Effective improvement of the early technological creation TWM436104. When the screw head sinks into the workpiece, the continuous spiral blade of at least 360 degrees easily cuts the wood fibers, resulting in incomplete cutting.

(2) Effectively improve the early technical creation TWM436104, which causes greater resistance to the screw head sinking into the workpiece due to the lack of post-cut debris and uncut debris storage space in the screw head and neck.

(3) Effectively improve the shortcomings of the early technical creation TWM436104 that cannot achieve the ideal lightness and labor saving when the screw head sinks into the workpiece.

(4) Effectively improve the early technical creation TWM436104. Due to the lack of space in the screw head and neck to accommodate post-cut debris and incompletely cut debris, excessive extrusion of debris can easily cause the screw head to flatten against the surface of the workpiece. The surface of the surrounding workpiece is bunched up.

The characteristics of this project are:

The tapered neck 2 of the screw head 1 is provided with at least one strip-shaped groove 3 that is inwardly recessed into the tapered neck 2 of the screw head 1. There is at least one side-extending groove on both sides of the groove 3. Blade 4, The blade 4 is integrally formed and protrudes outward on the surface of the tapered neck of the screw head;

The blades 4 on both sides of the groove 3 have an inclination angle E, and there is a non-vertical angle between the inclination angle E and the axis of the screw head;

There is a vertical angle between the blades 4 on both sides of the groove 3 and the axis of the screw head 1;

The angle F on both sides of the bottom edge of the blade 4 body is between 30 degrees and 45 degrees;

The position where the upper end of the groove 3 starts to be concave is connected to the lower edge of the screw head 1, that is, the position where the concave start of the groove 3 is equal to the top edge of the cone-shaped neck 2;

The upper end of the groove 3 begins to recess at a set distance from the lower edge of the screw head 1 , that is, the recessed starting position of the groove 3 is lower than the top edge of the tapered neck 2 .

Through the arrangement of at least one groove and several intermittent spirally arranged blades or several intermittent non-helically arranged blades, it is possible to achieve a sharper ability to easily cut wood fibers and a relatively ample chip-holding space in the groove, which is indeed It saves effort to sink the screw head, and the surface of the workpiece is smooth and does not bunch up.

1: Screw head

11:Ring gear

2: Tapered neck

3: Groove

4: Blade

E: tilt angle

F: included angle

Figure 1: Three-dimensional view of the creative embodiment (1) of this project.

Figure 2: Front view of the creative embodiment (1) of this project.

Figure 3: Right side view of Figure 2.

Figure 4: Section A-A of Figure 2.

Figure 5: Front view of the creative embodiment (2) of this project.

Figure 6: Right side view of Figure 5.

Figure 7: Section B-B of Figure 5.

Figure 8: Schematic diagram of the creative embodiment (3) of this case.

Figure 9: Schematic diagram of the creation embodiment (4) of this case.

Figure 10: Schematic diagram of the creative embodiment (5) of this case.

Figure 11: Schematic diagram of the creative embodiment (6) of this case.

Figure 12: Schematic diagram of the creation embodiment (7) of this case.

Figure 13: Right side view of Figure 12.

Figure 14: Section C-C of Figure 12.

Figure 15: Schematic diagram of the creation embodiment (8) of this case.

Figure 16: Front view of Embodiment (8) of this project.

Figure 17: Right side view of Figure 16.

Figure 18: Section C-C of Figure 16.

Please refer to Figure 1, Figure 5, Figure 8 to Figure 12 and Figure 15 as shown in Embodiment (1) to Embodiment (8) of this project. These different embodiments all have the following technical structure creation: screw head The cone-shaped neck 2 of 1 is provided with at least one groove 3 and several segments of intermittent spirally arranged blades 4 or several segments of intermittent non-helically arranged blades 4 to achieve a sharper ability to easily cut wood fibers and concave grooves. The ample chip-holding space in the groove indeed makes it easier to sink the screw head, and the surface of the workpiece is smooth and not bunched up. It is indeed the application of the same technology.

Please refer to Embodiment (1) shown in Figures 1 to 4. In this embodiment, the tapered neck 2 of the screw head 1 is provided with at least one integrally formed strip that is recessed into the tapered neck 2 of the screw head. Groove 3, the concave position of the upper end of the groove 3 is connected to the lower edge of the screw head 1, that is, the concave starting position of the groove 3 is equal to the top edge of the conical neck 2, in the groove Both sides of 3 have at least one A blade 4 extends sideways. The blade 4 is integrally formed and protrudes outward from the surface of the tapered neck 2 of the screw head. The blades 4 on both sides of the groove 3 have an inclination angle E, and the inclination angle E is consistent with the screw head. There is a non-vertical angle between the axis lines of blade 1, and the angle F between the two sides of the bottom edge of the blade 4 body is between 30 degrees and 45 degrees.

Please refer to Embodiment (2) shown in Figures 5 to 7. In this embodiment, a ring of teeth formed by a plurality of teeth is auxiliary between the bottom edge of the screw head 1 and the top edge of the tapered neck 2. The ring 11 is provided with at least one strip-shaped groove 3 that is inwardly recessed into the tapered neck 2 of the screw head and is provided with at least one blade extending sideways on both sides of the groove 3. 4. The blade 4 is integrally formed and protrudes outward from the surface of the tapered neck 2 of the screw head. The blades 4 on both sides of the groove 3 have an inclination angle E. There is an angle between the inclination angle E and the axis of the screw head 1. A non-vertical included angle, and the included angle F on both sides of the bottom edge of the blade 4 body is between 30 degrees and 45 degrees.

Please refer to Embodiment (3) to Embodiment (6) shown in Figures 8 to 11. In these embodiments, it is mainly disclosed that the groove 3 provided with the screw head 1 and the tapered neck 2 is integrally formed. As mentioned above, that is to say, the number of grooves 3 provided in the screw head 1 of the embodiment (three) shown in Figure 8 is that the tapered neck 2 is integrally formed. The number of grooves 3 provided in the screw head 1 of the embodiment (four) shown in Figure 9 The number of grooves 3 provided by the integrated molding of the neck 2 can be three. The number of grooves 3 provided by the screw head 1 of the conical neck 2 of the screw head 1 in the fifth embodiment shown in Figure 10 can be four. Figure 11 The number of grooves 3 provided in the tapered neck 2 of the screw head 1 of the sixth embodiment can be five.

Please refer to Embodiment (7) shown in Figures 12 to 14. In this embodiment, the tapered neck 2 of the screw head 1 is provided with at least one strip-shaped recess that is integrally formed into the tapered neck 2 of the screw head. The groove 3 has at least one blade 4 extending sideways on both sides of the groove 3. The blade 4 is integrally formed and protrudes outward from the surface of the cone-shaped neck 2 of the screw head. Blade 4 has no tilt The horizontal setting of the oblique angle means that there is a vertical angle between the horizontal setting of the blade 4 and the axis of the screw head 1, and the angle F on both sides of the bottom edge of the blade 4 body is between 30 degrees and 45 degrees.

Please refer to Embodiment (8) shown in Figures 15 to 18. In this embodiment, the tapered neck 2 of the screw head 1 is provided with at least one integrally formed strip that is recessed into the tapered neck 2 of the screw head. The groove 3 has a set distance from the upper end of the groove 3 to the lower edge of the screw head 1. That is, the starting position of the groove 3 is lower than the top edge of the tapered neck 2. There is at least one blade 4 extending sideways on both sides of the groove 3. The blade 4 is integrally formed and protrudes outward from the surface of the tapered neck 2 of the screw head. The blades 4 on both sides of the groove 3 have an inclined angle. E, there is a non-vertical angle between the inclination angle E and the axis of the screw head 1, and the angle F on both sides of the bottom edge of the blade 4 body is between 30 degrees and 45 degrees.

1: Screw head

2: Tapered neck

3: Groove

4: Blade

Claims (6)

An improvement of the screw head. The tapered neck 2 of the screw head 1 is provided with at least one strip-shaped groove 3 that is inwardly recessed into the tapered neck 2 of the screw head. There are at least one groove on both sides of the groove 3. A blade 4 extends sideways, and the blade 4 is integrally formed and protrudes outward from the surface of the tapered neck 2 of the screw head. According to the improvement of the screw head described in item 1 of the patent application, the blades 4 on both sides of the groove 3 have an inclination angle E, and there is a non-vertical angle between the inclination angle E and the axis of the screw head 1 . According to the improvement of the screw head described in item 1 of the patent application, the blades 4 on both sides of the groove 3 are horizontally arranged without an inclination angle, that is, there is a gap between the horizontally arranged blade 4 and the axis of the screw head 1. A vertical angle. According to the improvement of the screw head described in item 1 of the patent application, the angle F between the two sides of the bottom edge of the blade 4 body is between 30 degrees and 45 degrees. According to the improvement of the screw head described in item 1 of the patent application, the concave position of the upper end of the groove 3 is connected to the lower edge of the screw head 1, that is, the concave position of the groove 3 is equal to the tapered neck. The top edge position of part 2. According to the improvement of the screw head described in item 1 of the patent application, the position where the upper end of the groove 3 starts to recess is a set distance from the lower edge of the screw head 1, that is, the starting position of the recess of the groove 3 is lower than the conical shape. The position of the top edge of neck 2.

Images