TWM588178U - Structure of wood screw - Google Patents

Abstract

This creation provides a wood screw structure, which includes a screw head section, a rod body section, a first thread and a plurality of crushing rib units. The rod body section is sequentially integrally formed from the screw head section and includes a connection to the neck. A first shaft portion, a second shaft portion, a third shaft portion, and a tapered portion extending outwardly from the third shaft portion; the first thread is helically protruding from the tapered portion Part, the second shaft part and the third shaft part of the outer peripheral surface; the pulverizing rib unit spiral ring is convex on the outer peripheral surface of the third shaft part and the tapered part and includes a plurality of convex A smashing block provided on a rib body; a first chip discharge port is formed between the smash blocks, whereby the first chip discharge port can smash and quickly chip, and uniformly release the pressure between the objects.

Description

Wood screw structure

This creation relates to a screw used to lock wood, especially a wood screw structure that is easy to remove chips and can reduce the screwing torque of the lock, thereby preventing the locked wood material from cracking.

When the wood screw is used to lock the wood, the harder wood has a higher density and higher resistance, which makes it harder to screw in the wood screw, and the wood chips generated during the screwing process are not effectively discharged. Wood chips remain in the wood, and the wood chips are compressed by the screwing of the wood screws, which easily causes the wood to crack.

However, if a conventional wood screw forms a pattern with a plurality of irregular protrusions between its threads, this pattern will cause the wood screw as a whole to have an uneven occlusal force between the pattern part and the object during the tapping lock process, and may cause the wood screw to attack After the entry, problems such as unstable joints and shaking, and the pattern can be composed of a plurality of rib structures and these rib structures are not provided with chip removal structure, so that the wood chips generated during the tapping process are easily accumulated in the pattern portion And the object, which may cause the pressure between the wood screw and the object to increase, and the object to crack, etc. In addition, in the wood screw manufacturing process, the threads of each section are set at intervals, and the manufacturing process must be completed multiple times, resulting in Higher cost and time consuming issues. In view of this, the author specially researched and combined what he has learned, and proposed a wood screw structure that is easy to remove chips in order to overcome the lack of knowledge.

The purpose of this creation is to solve the problem that conventional wood screws in the prior art cannot provide effective chip removal and disperse the pressure between objects and screws when tapping and locking wood.

In order to achieve the above purpose, the present invention provides a wood screw structure including a screw head section, a rod body section, a first thread and a plurality of crushing rib units, wherein the screw head section includes a top portion, and a top portion extending from the top portion. And a neck portion tapering away from the top portion; the shaft portion is integrally formed from the neck portion of the screw head portion, and the shaft portion includes a first shaft portion connected to the neck portion, and a second shaft portion A shaft portion, a third shaft portion, and a tapered portion extending outwardly from the third shaft portion, and the second shaft portion is provided on the first shaft portion and the third shaft portion And the third shaft portion is disposed between the second shaft portion and the pointed cone portion; the first thread is spirally provided on the pointed cone portion, the second shaft portion and the third rod An outer peripheral surface of one of the body portions; the pulverizing rib units are spirally protruded from the outer peripheral surface of the third shaft portion and the tapered portion, and each of the pulverizing rib units alternates with the first thread to form an angle, The crushing rib unit does not include a rib body and a plurality of crushing blocks protruding from the rib body; Into a first exhaust port; and the outer diameter of the pulverizing system block is smaller than the diameter of the first screw thread, and the rod is greater than the diameter of the third shaft portion.

Further, the first thread provided at the third shaft portion has a plurality of second chip removal ports.

Further, each rib body forms a first side edge and a second side edge at the intersection of the third shaft portion and the outer peripheral surface of the pointed cone portion, and the first thread is formed on the second rod. A third side edge and a fourth side edge are formed at the intersection of the body, the third shaft portion, and the outer peripheral surface of the pointed cone portion, wherein the first side edge and the third side edge are at the third side. The outer peripheral surface of the shaft portion intersects to form a first included angle, and the angle of the first included angle ranges from 40 to 70 degrees.

Further, the first side and the fourth side intersect at the outer peripheral surface of the third shaft portion to form a second included angle, and the angle of the second included angle ranges from 110 to 130 degrees.

Further, a third included angle is formed by the intersection of the adjacent first side and the third side on the outer peripheral surface of the pointed cone, and the angle of the third included angle ranges from 50 to 70 degrees.

Further, a fourth included angle is formed by the intersection of the adjacent first side edge and the fourth side edge on the outer peripheral surface of the tapered portion, and the angle of the fourth included angle ranges from 110 to 130 degrees.

Further, the angle between the first included angle and the angle and the third included angle are different.

Further, the second side edge and the third side edge intersect at the outer peripheral surface of the third shaft portion to form a fifth included angle, and the fifth included angle ranges from 100 to 130 degrees, and the first The sum of an included angle and the fifth included angle ranges from 150 to 200 degrees.

Further, the first shaft portion is adjacent to the second shaft portion and a second thread is formed on a side corresponding to the top portion.

Further, the difference between the outer diameter of the crushed block and the screw diameter of the first thread is 0.6 mm to 0.7 mm.

Therefore, this creation has the following beneficial effects over the prior art:

1. This creation is provided with a crushing rib unit on the outer peripheral surface of the third shaft portion of the rod body section, and a first chip opening is formed between the crushing blocks of the crushing rib unit, thereby the wood screw can be tapped and locked When the generated wood chips are discharged between the two first threads, the crushing block can be used to further crush the wood chips, so that the wood chips can be smoothly discharged during subsequent chip discharge, and the pressure of the wood screws and objects can be evenly dispersed. To achieve smooth chip removal during tapping.

Here are some preferred implementation aspects of the technical features and operation methods of this application, which will be described later in conjunction with the illustrations, and provided for review and reference. Furthermore, the scale of the drawings in this creation is not necessarily drawn to the actual scale for the convenience of illustration. The scales in the drawings are not intended to limit the scope of protection claimed in this creation.

Regarding the content of this creation, please refer to Figures 1-1 to 2-3 as the first embodiment of this creation. This creation provides a wood screw structure, which mainly includes a screw head section 10 and a rod body. The segment 20, a first thread 30 and a plurality of crushing rib units 40. The wood screw structure used in this creation is used to fix or join wooden workpieces, such as wooden floors and wooden furniture, but it is not limited to this.

In more detail, please refer to FIG. 2-1 again. The screw head section 10 includes a top 11 and a neck 12 extending from the top 11 and tapering away from the top 11. The neck 12 is provided with a plurality of convex ribs 13, and the convex ribs 13 can strengthen the embedding property of the object after the wood screw with the wood screw structure is locked into the object.

Please refer to FIGS. 2-1 and 2-2 together. The rod body section 20 is integrally formed from the neck portion 12 of the screw head section 10. The rod body section 20 includes a connection A first shaft portion 21, a second shaft portion 22, a third shaft portion 23, and a tapered portion 24 extending from the third shaft portion 23 outwardly and gradually extending outward from the neck portion 12, wherein, the The second shaft portion 22 is provided between the first shaft portion 21 and the third shaft portion 23, and the third shaft portion 23 is provided between the second shaft portion 22 and the sharp cone portion 24, In this embodiment, the first shaft portion 21, the second shaft portion 22, the third shaft portion 23, and the pointed cone portion 24 are integrally formed in order.

The first thread 30 is spirally provided on an outer peripheral surface 25 of one of the tapered portion 24, the second shaft portion 22 and the third shaft portion 23;

The smashing rib units 40 spirally protrude from the outer peripheral surface 25 of the third shaft portion 23 and the tapered portion 24, and each of the smashing rib units 40 and the first thread 30 are staggered to form an angle, wherein In this embodiment, three crushing rib units 40 are formed on the third shaft portion 23 and the sharp cone portion 24, but not limited thereto, and please refer to FIG. 2-3 again. The crushing rib unit 40 includes a rib body 41 and a plurality of crushing blocks 42 protruding from the rib body 41. The external shape of the crushing block 42 is a pyramid, such as a triangular pyramid or a quadrangular pyramid, but It is not limited to this, and the crushing block 42 in this embodiment is a quadrangular pyramid, and a first chip discharge port 43 is formed between the crushing blocks 42, and the wood chips pass through the first chip discharge port 43 so that When chip removal is performed on the outer peripheral surface 25 between the first threads 30, when passing through the crushing rib units 40, the combination of the crushing block 42 and the first chip discharge port 43 can be used for cutting to facilitate the cutting of wood fibers. And enable the cut wood chips to be continuously discharged along the space of the outer peripheral surface 25 between the first threads 30;

The outer diameter D1 of the crushing block 42 is smaller than the screw diameter D2 of the first thread 30 and larger than the diameter D3 of the third shaft portion 23, and the outer diameter D1 of the crushing block 42 and the first thread The difference in screw diameter D2 of 30 is between 0.6 mm and 0.7 mm, so that the chip removal can be facilitated by the crushing rib units 40 when locked.

In addition, each rib body 41 forms a first side edge 44 and a second side edge 45 at the intersection of the third shaft portion 23 and the outer peripheral surface 25 of the tapered portion 24, and the first thread 30 A third side edge 31 and a fourth side edge 32 will be formed at the intersection of the second shaft portion 22, the third shaft portion 23, and the outer peripheral surface 25 of the tapered portion 24; One side 44 and the third side 31 intersect at the outer peripheral surface 25 of the third shaft portion 23 to form a first included angle ∠1, and the angle of the first included angle ∠1 ranges from 40 to 70 degrees; The first side 44 and the fourth side 32 intersect at the outer peripheral surface 25 of the third shaft portion 23 to form a second included angle ∠2, and the angle of the second included angle ∠2 ranges from 110 to 130 degrees; The adjacent first side 44 and the third side 31 intersect at the outer peripheral surface 25 of the tapered portion 24 to form a third included angle ∠3, and the angle of the third included angle ∠3 ranges from 50 to 70 degrees. ; The adjacent first side edge 44 and the fourth side edge 32 intersect at the outer peripheral surface 25 of the tapered portion 24 to form a fourth included angle ∠4, and the angle range of the fourth included angle ∠4 is 110 ~ 130 degrees In addition, the first included angle ∠1 and the third included The angle ∠3 is different, and the second side 45 and the third side 31 intersect at the outer peripheral surface 25 of the third shaft portion 23 to form a fifth included angle ∠5. The range is between 100 and 130 degrees, and the sum of the angle values of the first included angle ∠1 and the fifth included angle ∠5 ranges between 150 and 200 degrees, and the first included angle 相邻 of the adjacent first threads 30 1 will be different, so that when the first included angle ∠1 of the adjacent first threads 30 is different, the cutting angle of the wood fiber is cut differently to increase the efficiency of cutting wood chips and further increase the cutting efficiency.

In addition, the first thread 30 is concavely formed at the third shaft portion 23 to form a plurality of second chip removal ports 33, whereby the first thread 30 utilizes the plurality of holes formed in the third shaft portion 23. The second chip ejection port 33 is used for reaming, that is, after the pointed cone portion 24 is locked into the workpiece for positioning, the first shaft 30 having the second chip ejection port 33 on the third shaft portion 23 can be used. The screw diameter D2 is larger than the rod diameter D3, so that in the subsequent tapping and locking process, the first thread 30 with the second chip removal holes 33 on the third shaft portion 23 will reduce contact with objects and utilize The reaming and chip removal of the second chip discharge openings 33 reduce friction, so that the user can effortlessly tap the wood screw on the object; and the first shaft portion 21 is adjacent to the second shaft portion 22 Should be formed on the side of the top 11 is a second thread 50, wherein the second thread 50 in this embodiment has a substantially diagonal appearance;

Please refer to Figures 3-1 to 4-3 again. This is the second embodiment of this creation. Its main structure is roughly the same as the first embodiment of this creation, so the same parts are not described again, only the differences The structural part is described. The pulverizing block 42 of the pulverizing rib unit 40 of the second embodiment of the present invention is a rhombus-shaped pyramid. Thus, the wood chips generated when tapping the screw holes are processed in the first stage. When the chip discharge port 43 is smashed and cut by the crushing blocks 42, and is accelerated to be discharged by the first chip discharge port 43 between the two crushing blocks 42, to avoid the scraps remaining on the wooden object and the wood screw and mutual Squeezing causes the problem of increased friction and even cracking of the wooden object. In addition, cutting edges are provided on the outer edges of the first thread 30 and the second thread 50, which can effectively reduce the friction during rotation To improve locking efficiency.

To sum up, the outer diameter D1 of the crushing block 42 of the crushing rib unit of the wood screw structure of this creation is smaller than the screw diameter D2 of the first thread 30 and the difference is between 0.6mm ~ 0.7mm. When it is convenient, the chip removal of the wood chips will not be blocked by the crushing rib units 40, so that when tapping and locking the objects, the chips can be further crushed and quickly discharged, so that the wood chips can be discharged from the objects, and evenly released. The pressure between the objects, in addition, the first thread, the second thread, and the cutting edges on the periphery of the object can be positioned on the object and provide stability when tapping, thereby improving the accuracy of alignment.

10‧‧‧Screw head
11‧‧‧Top
12‧‧‧ neck
13‧‧‧ raised rib
20‧‧‧ Rod Section
21‧‧‧First shaft
22‧‧‧Second shaft
23‧‧‧ third shaft
24‧‧‧Spiral cone
25‧‧‧outer surface
30‧‧‧first thread
31‧‧‧ third side
32‧‧‧ fourth side
33‧‧‧Second chip removal port
40‧‧‧ crushing rib unit
41‧‧‧ rib body
42‧‧‧ Crush block
43‧‧‧First chip opening
44‧‧‧ the first side
45‧‧‧ second side
50‧‧‧Second thread ∠1‧‧‧First angle ∠2‧‧‧Second angle ∠3‧‧‧Three angle ∠4‧‧‧Four angle
D1‧‧‧ Outside diameter
D2‧‧‧Screw diameter
D3‧‧‧pole diameter

Figure 1-1: A perspective view of the wood screw structure of the first embodiment of the creation.
Figure 1-2: A partial enlarged view of the icon A of Figure 1-1.
Figure 2-1: A front view of the wood screw structure of the first embodiment of the creation.
Figure 2-2: A partial enlarged view of the icon B in Figure 2-1.
Figure 2-3: A cross-sectional view taken along the line CC in Figure 2-2.
Figure 3-1: A perspective view of the wood screw structure of the second embodiment of the present invention.
Fig. 3-2: It is a partial enlarged view of icon D in Fig. 3-1.
Figure 4-1: A front view of the wood screw structure of the second embodiment of the present invention.
Fig. 4-2: A partial enlarged view of E shown in Fig. 4-1.
Figure 4-3: A sectional view taken along the line FF in Figure 4-2.

Claims (10)

A wood screw structure mainly includes:
A screw head segment including a top portion and a neck portion extending from the top portion and tapering away from the top portion;
A shaft section is integrally formed from the neck of the screw head section. The shaft section includes a first shaft portion, a second shaft portion, a third shaft portion, and a first shaft portion connected to the neck portion. A tapered portion extending outwardly from the third shaft portion, wherein the second shaft portion is disposed between the first shaft portion and the third shaft portion, and the third shaft portion is provided Between the second shaft portion and the pointed cone portion;
A first thread is spirally provided on an outer peripheral surface of the pointed cone portion, the second shaft portion and the third shaft portion; and at least one crushing rib unit, and a spiral ring is convex on the third shaft portion. An angle is formed alternately with the outer peripheral surface of the sharp cone portion, and each of the crushing rib units and the first thread, wherein the crushing rib unit includes a rib body and a plurality of crushing blocks protruding from the rib body;
Among them, a first chip discharge opening is formed between the crushed blocks;
The outer diameter of the crushing block is smaller than the screw diameter of the first thread and larger than the shaft diameter of the third shaft portion. The wood screw structure according to item 1 of the scope of the patent application, wherein the first thread provided at the third shaft portion has a plurality of second chip removal ports. The wood screw structure according to item 1 of the scope of patent application, wherein each rib body forms a first side edge and a second edge at the intersection of the third shaft portion and the outer peripheral surface of the pointed cone portion. Side, and the first thread forms a third side and a fourth side at the intersection of the second shaft portion, the third shaft portion, and the outer peripheral surface of the tapered portion; wherein, the first One side and the third side intersect at the outer peripheral surface of the third shaft portion to form a first included angle, and the angle of the first included angle ranges from 40 to 70 degrees. The wood screw structure according to item 3 of the scope of patent application, wherein the first side edge and the fourth side edge intersect at the outer peripheral surface of the third shaft portion to form a second included angle. The angle range is between 110 ~ 130 degrees. According to the wood screw structure described in item 3 of the scope of patent application, wherein the first side edge and the third side edge intersect at the outer peripheral surface of the tapered portion to form a third included angle, and the third included angle The angle range is between 50 and 70 degrees. The wood screw structure according to item 3 of the scope of patent application, wherein adjacent the first side edge and the fourth side edge intersect at the outer peripheral surface of the tapered portion to form a fourth included angle. The angle range is between 110 ~ 130 degrees. The wood screw structure according to item 5 of the scope of the patent application, wherein the first included angle and the angle are different from the angle of the third included angle. According to the wood screw structure described in item 3 of the scope of patent application, wherein the second side edge and the third side edge intersect at the outer peripheral surface of the third shaft portion to form a fifth included angle, the fifth The included angle ranges from 100 to 130 degrees, and the sum of the first included angle and the fifth included angle ranges from 150 to 200 degrees. According to the wood screw structure described in item 1 of the scope of patent application, further, the first shaft portion is adjacent to the second shaft portion and a second thread is formed corresponding to the top side. The wood screw structure according to item 1 of the scope of the patent application, wherein the difference between the diameter of the outer diameter of the crushing block and the diameter of the first thread is 0.6 mm to 0.7 mm.