TW201619514A - Improved wood screw structure - Google Patents

Abstract

The present invention provides an improved wood screw structure, in which the wood screw is integrally formed of a head, a stem, and a tip. The present invention is characterized in: the stem is between the head and the tip and the outer peripheral of the stem body is spirally surrounded with a continuous thread; the tip is formed in a way a chip collecting portion is at the portion which connects with the stem, and the diameter of the chip collecting portion is smaller than that of the stem; the tip is in the shape of a square pyramid and is tapered toward the end and ends as the four pyramid base edges in which two symmetric pyramid edges of the tip are protruded with a shaving strip. The wood screw can be driven vertically and produced a hole via the pyramid tip and the shaving strip in order to function as a carpentry bit in which tapping is proceeded via the continuous thread and can achieve fast chip removal via the chip collecting portion.

Description

Wood screw structure improvement

The invention relates to a screw structure, in particular to a wood screw structure improvement which has both vertical drilling and fast chip removal functions.

According to the general wooden material, there is a combination of nailing or screwing, and the nailing and fastening method is fast combined with the nail gun. The disadvantage is that the joint strength is insufficient and cannot be used repeatedly, and the screw locking method is also adopted. It refers to the combination of screw screw lock, although the thread can increase its joint strength and can be used repeatedly along the original screw hole, but when the screw hole is actually drilled, the thread of the screw will be drilled obliquely at a slight angle. Wood material, and the oblique insertion hole has the lack of uneven force, which easily leads to the tilting of the screw, so that the screw cannot be properly screwed onto the wooden material, and because it is applied to the wooden material, the wooden material The hardness is lower than that of the screw, so that the screw can easily remove a large amount of wood chips, so the chip removal speed is too slow, and the wood chips that are not discharged in time will squeeze the hole wall, improve the internal stress of the hole, and make the wood material very It is easy to break along the wood grain, which is the technical problem to be solved by the creation.

In view of this, the inventors have been engaged in the manufacturing development and design experience of related products for many years, and after detailed design and careful evaluation of the above objectives, the present invention has finally become practical.

The technical problem to be solved by the present invention is to provide an improvement of the wood screw structure in view of the above-mentioned shortcomings existing in the prior art.

The screw portion is interposed between the head portion and the tip portion, and the outer edge of the shaft portion of the screw portion is spirally surrounded by a continuous thread, and the continuous thread is spaced apart from the plurality of chip flutes, and the tip portion is connected to the connecting screw a chip portion is formed at the portion, and the diameter of the chip collecting portion is smaller than the diameter of the screw portion, and the tip portion is tapered toward the end to form a quadrangular surface edge, and the tip portion is symmetric A chip strip is protruded from both tapered edges.

The first main object of the present invention is that the wood screw is pressed against the wood piece with a tip and is rotated to allow the tip of the wood screw to penetrate into the wood piece while forming the shavings through the two symmetric chip strips of the tip portion. The effect is that there is no single-sided shavings and oblique insertion drilling, that is, a taper hole can be formed perpendicularly to the wood piece to form a woodworking drill bit, and the wood screw is eliminated from the initial drilling. The problem is that a tapered hole can be formed on the surface of the wooden piece, and a large amount of wood chips which are plucked by the tip can be quickly collected in the collecting part, so that the tip of the wood screw is not affected, so that the shaving strip can be determined. The wood piece is swarfed to achieve the practical effect of vertical drilling and fast chip removal.

A second main object of the present invention is that the screw portion penetrates into the wood piece, and the drilling thread through the continuous thread can greatly increase the drilling speed, that is, the tapping can be directly performed on the taper hole of the wood after drilling. The use of continuous thread flutes to enhance the upward discharge of wood chips can achieve the function of subsequent chip removal, further eliminating the internal stress of the wood material through rapid chip removal, and preventing the wood material from being broken due to excessive internal stress.

Other objects, advantages and novel features of the invention will be apparent from the description and appended claims.

[this creation]

10‧‧‧ wood screws

11‧‧‧ head

12‧‧‧ Screw Department

121‧‧‧Continuous thread

122‧‧‧chip flute

13‧‧‧ tip

131‧‧‧Settings

132‧‧‧Cone edge

133‧‧‧planar strips

A‧‧‧Wood pieces

Figure 1 is a perspective view of the present invention.

Figure 2 is a front elevational view of the present invention.

Figure 3 is a partial enlarged view of the tip of the present invention.

Figure 4 is a schematic view (1) of the drilling process of the present invention.

Figure 5 is a schematic view of the drilling process of the present invention (2).

Figure 6 is a schematic view of the drilling process of the present invention (3).

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [detailed description of the drawings] as follows: First, please refer to Figure 1, Figure 2 and Section 3. As shown in the figure, a wood screw structure is improved, and the wood screw 10 is integrally formed by the head 11, the screw portion 12 and the tip portion 13, wherein the screw portion 12 is interposed between the head portion 11 and the tip portion 13. And the outer edge of the shaft of the screw portion 12 is spiral Surrounding a continuous thread 121, the continuous thread 121 is spaced apart from the plurality of chip flutes 122, and the tip portion 13 is formed with a chip portion 131 at the connecting screw portion 12, and the chip collecting portion 131 has a smaller diameter than the screw portion. The diameter of the portion 12, the tip portion 13 is tapered toward the end to form a quadrangular surface 132, and the tip portion 13 is convexly provided with a chip strip 133 at the symmetric two tapered edges 132. The wood screw 10 can be vertically drilled by the tapered tip 13 and the chip strip 133 to form a woodworking drill bit, and the tapping is performed by the continuous thread 121, and the chip collecting portion 131 is matched to achieve the effect of rapid chip evacuation.

For the actual use, please see the figure shown in Figures 3, 4, and 5. The wood screw 10 of this creation is used for the locking of wooden materials. When you want to screw into the wood A, control the wood screws. The head 11 of the 10 is rotated, and its screw portion 12 and the tip portion 13 are interlocked. At this time, the tip end of the tip portion 13 abuts against the wood piece A, and the wood screw 10 is pressed against the piece A by the tip portion 13 and exerts a force. Rotating, the tip 13 of the wood screw 10 can penetrate into the wood piece A, and at the same time, the two symmetrical shaving strips 133 of the tip 13 form a shaving effect, thereby preventing the unilateral shavings and the oblique drilling. That is, the taper hole can be drilled perpendicularly to the wood piece A, and the function of the woodworking drill bit is formed, thereby eliminating the problem that the wood screw 10 is inclinedly locked during the initial drilling, that is, the taper hole can be formed on the surface of the wood piece A, and at the same time The large amount of wood chips shaved by the tip portion 13 can be quickly collected in the chip collecting portion 131, thereby not affecting the drilling of the tip portion 13 of the wood screw 10, so that the chip strip 133 can determine the chip A, and the vertical portion is vertical. The practical effect of drilling and fast chip removal, and when the wood screw 10 is further drilled into the wood piece A, the screw part 12 is also penetrated into the piece A, through The oblique insertion drilling of the continuous thread 121 can greatly increase the drilling speed, that is, the tapping can be directly performed on the taper hole of the wood piece A after the drilling, and the chip flute 122 of the continuous thread 121 can be used to enhance the upward discharge of the wood chips. The function of subsequent chip removal can be achieved, and the internal stress of the wood material can be further eliminated by rapid chip removal, so as to prevent the wood material from being broken due to excessive internal stress.

In summary, the present invention has indeed achieved a breakthrough structural design, and has improved invention content, and at the same time, can achieve industrial utilization and progress, and the present invention is not found in any publication, but also novel, when In accordance with the provisions of the relevant laws and regulations of the Patent Law, the application for invention patents is filed according to law, and the examination authority of the bureau is required to grant legal patent rights.

The above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; that is, the equivalent variations and modifications made by the scope of the present invention should still belong to the present invention. Within the scope of the patent.

10‧‧‧ wood screws

11‧‧‧ head

12‧‧‧ Screw Department

121‧‧‧Continuous thread

122‧‧‧chip flute

13‧‧‧ tip

131‧‧‧Settings

132‧‧‧Cone edge

133‧‧‧planar strips

Claims (2)

The wood screw structure is improved, and the wood screw is integrally formed by the head portion, the screw portion and the tip portion, wherein the screw portion is interposed between the head portion and the tip portion, and the outer edge of the shaft portion of the screw portion is a spiral thread surrounds a continuous thread, and the tip portion forms a chip collecting portion at the connecting screw portion, and the chip collecting portion has a diameter smaller than a diameter of the screw portion, and the tip portion is tapered toward the end to form a tapered portion. a four-cone edge, and the tip is convexly provided with a chip strip at the edge of the symmetric two-cone surface, and the wood screw can be vertically drilled by the tapered tip and the chip strip to form a woodworking drill bit. The tapping is performed with a continuous thread, and the chip collecting portion is used to achieve the effect of rapid chip removal. The wood screw structure improvement according to the first aspect of the patent application, wherein the continuous thread is spaced apart from the plurality of chip flutes.