TWM598897U - Fast chip removal reaming screw - Google Patents

Abstract

The present invention provides a fast chip removal reamer screw, which includes a screw head, a rod body extending from the screw head, and a first thread provided on the outer peripheral surface of the rod body; the rod body includes a shaft connecting the screw head Part, a reaming part connecting the shaft part and a taper part connecting the other side of the reaming part, the reaming part includes a plurality of first reaming blocks, a plurality of second reaming blocks and A plurality of third reaming blocks, and a plurality of chip removal channels formed between the first reaming block, the second reaming block, and the third reaming block, wherein the chip removal path is located between any two first reaming blocks The first width of the first chip removal channel and the second width of the second chip removal channel located between any two second reaming blocks are different from each other, so that the wood chips can be quickly discharged to reduce the pressure between the screw and the workpiece.

Description

Fast chip removal reaming screw

This creation is about a kind of expanded hole screw, especially a kind of fast chip removal reaming screw that reduces the screwing torque of the lock and prevents the material to be locked from cracking and can quickly remove the wood chips.

When the wood screws are locked into wood, the wood with higher hardness has higher density and stronger resistance, which makes it more difficult to screw in the wood screw, and the wood chips produced during the screwing process cannot be effectively discharged, so The wood chips remain in the wood and the wood chips are compressed by the screwing pressure of the wood screws, which easily causes the wood to crack.

Please also refer to the wood screw disclosed in Announcement No. M491743, which includes a screw head for connecting with a locking tool; a rod body extending from the screw head, and the rod body has a parallel rod body Part, a tapered portion formed at the end of the parallel rod portion and tapered, and a tip formed at the end of the tapered portion; at least one first thread formed on the parallel rod portion; and a pattern , Formed on the end of the parallel rod portion adjacent to the pointed cone part or the pointed cone part, and does not extend to the tip. The purpose is to lock the wood into the wood without pre-drilling, and can prevent the wood from cracking and the screw from breaking, and at the same time, it can reduce the screwing torque when locking, so that the operator can lock into the hard wood without any effort.

However, the conventional wood screws are made of irregular protrusions, which results in uneven bite force between the pattern part and the workpiece during the tapping process, and problems such as unstable joints and shaking may occur after the screw is tapped. , And its pattern can be composed of multiple ribs or rhombus mesh grid pattern without chip removal structure, so that the wood chips generated during the tapping process cannot be discharged, and then accumulate between the pattern part and the workpiece. As a result, the pressure between the wood screw and the workpiece is increased and the workpiece is cracked. In addition, since the threads of each section are arranged at intervals during the screw manufacturing process, the manufacturing process has to be completed multiple times, resulting in high cost and time-consuming problems. In view of this, the creator of this author has concentrated on research and combined what he has learned to solve the above problems and propose a fast chip removal reaming screw to overcome the lack of conventional knowledge.

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

In order to achieve the above-mentioned purpose, the present invention provides a fast chip removal reamer screw, which includes a screw head, a rod body and at least one first thread; the screw head includes a top and a top extending away from the top A neck that tapers in the direction; the shaft extends from the neck of the screw head. The shaft includes a shaft connected to the neck, a reaming part connected to the shaft, and a The taper portion on the other side of the reaming portion, and the reaming portion includes a plurality of first reaming blocks, a plurality of second reaming blocks, and a plurality of third reaming blocks arranged in a spiral staggered manner, and a plurality of reaming blocks formed on the first A chip removal channel between a reaming block, the second reaming block and the third reaming block, wherein the chip removal channel further includes a first chip removal channel located between any two first reaming blocks and Any one of the second chip removal passages between the second reaming blocks; the first threaded ring is provided on the outer peripheral surface of the shaft from the pointed cone portion to the shaft portion through the reaming portion, Wherein, the first chip evacuation channel is provided with a first width on the outer peripheral surface of the rod body, and the second chip evacuation channel is provided with a second width on the outer peripheral surface of the rod body, and the first width and the second width are different from each other .

Further, the first width of the first chip removal path is smaller than the second width of the second chip removal path, and the first width is greater than zero.

Further, the first reaming block is ring-mounted between the shaft portion and the pointed cone portion.

Further, the third reaming block is ring-mounted at the junction of the reaming portion and the shaft portion, and the junction of the reaming portion and the tapered portion.

Further, the outer peripheral surface of the first thread protruding from the rod body has a first tooth height, and the outer peripheral surface of the first reaming block protruding from the rod body has a first reaming height. The reaming height is less than or equal to half of the first tooth height, and the first reaming height is greater than zero.

Further, the outer peripheral surface of the first thread protruding from the rod body has a first tooth height, and the outer peripheral surface of the second reaming block protruding from the rod body has a second reaming height. The reaming height is less than or equal to one third of the first tooth height, and the second reaming height is greater than zero.

Further, the shaft portion includes an oblique thread adjacent to a side of the first thread corresponding to the screw head.

Further, the first reaming block and the second reaming block are pyramids.

Further, each of the reaming blocks includes a cutting end and a plurality of slope sections inclined from the cutting end to the outer peripheral surface of the rod body.

Therefore, this creation has the following beneficial effects compared with previous technologies:

1. This creation is provided with a reaming part on the rod body, and the reaming part is provided with a plurality of first reaming blocks, a plurality of second reaming blocks and a plurality of third reaming blocks arranged in a spiral staggered manner, and plural numbers are formed on the The chip removal path between the first reaming block, the second reaming block, and the third reaming block uses the first reaming blocks, the second reaming blocks and the third reaming blocks of different sizes. The hole block is used to tap and lock the hole larger than the rod diameter. In this way, the hole formed by the pre-reaming part of the fast chip removal reaming screw can save labor during subsequent tapping, and the chips generated by the reaming part can be used along The chip removal channels with different widths among the first reaming blocks, the second reaming blocks and the third reaming blocks are quickly discharged, and the pressure between the screw and the workpiece can be evenly dispersed, so as to save effort Down-tapping lock and rapid chip removal.

2. The first thread of this creation is connected to the reaming part. The reaming part can tap and lock the workpiece through the first thread while tapping the hole to form a stable positioning, so that the workpiece can be tapped and locked in a stable state, thereby preventing The shaking of the screw caused the workpiece to crack.

Here are a few preferred implementation aspects of the technical features and operation methods of this application, which will be described in conjunction with the illustration below for review and reference. Furthermore, the drawings in this creation are not necessarily drawn according to the actual scale in order to facilitate the description, and the ratios in the drawings are not used to limit the scope of protection requested by this creation.

For the technology of this creation, please refer to Figures 1-1 to 5. This creation provides a quick chip removal reaming screw 100, which includes a screw head 10, a rod body 20 connected to the screw head 10, and A first thread 30 provided on the outer peripheral surface of the rod body 20. The quick chip removal reaming screw 100 of this invention is used for fixing or joining wooden workpieces W, such as wooden floors, wooden furniture, etc., but not limited to this.

In more detail, please refer to Figures 1-1 to 2-2. The screw head 10 includes a top portion 11 and a neck portion 12 extending from the top portion 11 and tapering away from the top portion 11 . Please refer to Figures 1-1 to 2-2 again. The neck 12 is provided with a plurality of ribs 13, which are strengthened after the quick chip removal reaming screw 100 is locked into the wooden workpiece W Fixability with wooden workpiece W.

The shaft 20 extends from the neck 12 of the screw head 10. The shaft 20 includes a shaft portion 21 connected to the neck portion 12, a reaming portion 22 connected to the shaft portion 21, and a The taper portion 23 connected to the other side of the reaming portion 22, please refer to Figs. 1-2 and 2-2, and the reaming portion 22 includes a plurality of first reaming blocks arranged in a spiral staggered manner 221. A plurality of second reaming blocks 222 and a plurality of third reaming blocks 223, and a plurality of chip removal channels formed between the first reaming block 221, the second reaming block 222 and the third reaming block 223 24, and the first reaming block 221 is ringed between the shaft portion 21 and the tapered portion 23, and the third reaming block 223 is ringed on between the reaming portion 22 and the shaft portion 21 The joint is the joint between the reaming portion 22 and the tapered portion 23, and the size of each of the first reaming block 221, the second reaming block 222, and the third reaming block 223 is different The same, and each of the first reaming block 221, the second reaming block 222, and the third reaming block 223 each includes a cutting end 25 and a plurality of cutting ends 25 inclined toward the outer peripheral surface of the rod body 20 The slope section 26 is in point contact with the wooden workpiece W through the cutting end 25, which is beneficial to cut the wood fiber during cutting, and the cut wood chips can be discharged along the slope end 26 to the chip discharge channel 24, wherein the The chip removal channel 24 further includes a first chip removal channel 241 located between any two of the first reaming blocks 221 and a second chip removal channel 242 located between any two of the second reaming blocks 222. The second reaming block 222 and the third reaming block 223 are not provided on a chip removal channel 241, and the first reaming blocks 221 and the second reaming block 221 are not provided on the second chip removal channels 242. The third reaming block 223, that is, the first reaming block 221, the second reaming block 222, and the third reaming block 223 are not provided on the chip removal channels. In addition, the first reaming block 223 The block 221, the second reaming block 222, and the third reaming block 223 may be pyramids, such as triangular pyramids, quadrangular pyramids, etc. In this embodiment, quadrangular pyramids are mainly used, but not limited thereto;

The first thread 30, please refer to Figure 2-1 and Figure 2-2, which is ringed on the rod body 20 from the tapered portion 23 through the reaming portion 22 to the shaft portion 21 Please refer to Figure 3 again on the outer peripheral surface, where the first thread 30 protrudes from the outer periphery of the rod body 20 to have a first tooth height H1, and the first reaming block 221 protrudes There is a first reaming height H2 on the outer circumference of the rod body 20, the first reaming height H2 is less than or equal to half of the first tooth height H1, and the first reaming height H2 is greater than zero , And the second reaming block 222 protruding from the outer circumference of the rod body 20 has a second reaming height H3, and the second reaming height H3 is less than or equal to one-third of the first tooth height H1. One, and the second reaming height H3 is greater than zero. In this embodiment, the rod body 20 is mainly provided with one first thread 30. The rod body 20 may also be provided with more than two first threads 30 , Not limited to this.

Wherein, please refer to Figure 2-2 again. The first chip channel 241 is provided with a first width W1 on the outer peripheral surface of the rod body 20, and the second chip channel 242 is provided on the outer peripheral surface of the rod body 20. There is a second width W2, the first width W1 and the second width W2 are different from each other, the first width W1 is the average width of the first chip channel 241, and the second width W2 is the second chip channel 242 In this embodiment, the first width W1 of the first chip channel 241 is smaller than the second width W2 of the second chip channel 242, and the first width W1 is greater than zero.

Please refer to Figures 4 to 5, the quick chip removal reaming screw 100 is first positioned on the wooden workpiece W in contact by the sharp taper portion 23, and when reaming, the two first reaming screws A smaller second reaming block 222 is arranged between the hole blocks 221 to facilitate the engagement of the wooden workpiece W and to make the first chip removal channel 241 between the two adjacent first reaming blocks 221 The width W1 is smaller than the second width W2 between the two adjacent second reaming blocks 222, and the larger cutting force of the larger first reaming blocks 221 is used to quickly cut the wooden workpiece W, and After being cut by the first reaming blocks 221, wood chips can enter the second chip removal channel 242 which is larger than the first width W1 of the first chip removal channel 241, and pass through the second reaming blocks 222 or the Wait for the third reaming block 223 to continue cutting, so as to avoid excessive cutting force from cracking the wooden workpiece W, that is, to prevent wood chips from being accumulated in the chip channel 24, and then to quickly remove chips and cut the wood Workpiece W.

In addition, the first reaming blocks 221, the second reaming blocks 222, and the third reaming blocks 223 are spirally and staggeredly arranged on the reaming portion 22 of the rod body 20, and the first reaming block The dimensions of the hole block 221, the second reaming block 222, and the third reaming block 223 are different from each other, and the chip removal channel 24 is located between two adjacent first reaming blocks 221 as the first The chip removal channel 241, the chip removal channel 24 is located between the two adjacent second reaming blocks 222 as the second chip removal channel 242, and the chip removal channel 24 is formed between the first reaming block 221 and the second Between the reaming blocks 222, or between the third reaming block 223 and the first reaming block 221 and the second reaming block 222, there will be other chip removal channels 24 (not numbered in the figure), so the wood is cut The sawdust generated during the workpiece W is discharged according to the staggered arrangement of the chip channel 24, please refer to Figure 5 again, and the first width W1 of the first chip channel 241 and the second chip channel 242 The second width W2 is different, and the first width W1 is smaller than the second width W2. The design is beneficial to uniformly release the pressure between the quick chip removal reaming screw 100 and the wooden workpiece W (the dotted arrow in the figure) It is the direction of wood chip discharge), and the wood chips generated during the reaming can be quickly and smoothly removed, thereby reducing the pressure between the rapid chip removal reaming screw 100 and the wooden workpiece W. In addition, the first width W1 of the first chip channel 241 and the second width W2 of the second chip channel 242 are smaller than the pitch of the first thread 30, so as to prevent the excessively large distance from causing the rapid chip removal The contact surface of the reaming screw 100 and the wooden workpiece W is small, which causes the problem of shaking. In addition, the plane angle of the first chip removal path 241 and the second chip removal path 242 is preferably between 35° and 55°. The term of the plane angle mentioned in the creation refers to the angle between the first chip channel 241 and the second chip channel 242 in the screw pressing plate mold during the manufacturing process of the quick chip removal reamer screw 100. This angle can be After the sawdust is guided into the chip channel 24 according to the oblique cutting force formed by the first thread 30, the angle of the chip channel 24 is smoother;

Please refer to Fig. 6, which is another embodiment of this creation, which is mainly in that the shaft portion 20 is adjacent to the first thread 30 and is provided with an oblique thread 27 on the side corresponding to the screw head 10. 27 can guide the wood chips to be discharged from the wooden workpiece W, and the rod body 20 further includes a tail cutting groove 28 formed from the side of the pointed cone 23. The sawdust generated when tapping the screw hole in this way can be discharged through the tail cutting groove 28 at an accelerated rate to prevent the sawdust from remaining in the wooden workpiece W and squeezing each other to cause increased friction, and even causing the wooden workpiece W to produce turtles. The affair of splitting. In addition, the outer periphery of the first thread 30 can be provided with a plurality of serrated cutting edges 31, which can effectively reduce the friction during rotation and improve the locking efficiency.

In summary, the reaming part 22 of the quick chip removal reaming screw 100 of this creation is provided with the first reaming blocks 221, the second reaming blocks 222 and the third reaming holes of different sizes. The block 223 and the chip removal channel 24 with different width designs promote the fast chip removal reaming screw 100 when screwing on the wooden workpiece W, so that its resistance is reduced and the tapping and locking is more labor-saving, and the chip removal is designed with different widths The channel 24 quickly discharges the wood chips generated from the wooden workpiece W, and uniformly releases the pressure between the wooden workpiece W. In addition, when reaming, the first thread 30 and the serrated cutting edge on the reaming portion 22 can be used 31 is positioned on the wooden work piece W, provides the stability of the quick reaming screw 100 when tapping and locking, and improves the accuracy of alignment.

The content of this creation has been explained in detail above, but the above are only the preferred embodiments of this creation, and should not be used to limit the scope of implementation of this creation, that is, all equivalent changes and changes made in accordance with the scope of patent application for this creation Modifications should still fall within the scope of the patent for this creation.

100: Fast chip removal reaming screw 10: Screw head 11: top 12: neck 13: convex rib 20: Rod body 21: Shaft 22: Reaming part 221: First Reaming Block 222: Second Reaming Block 223: Third Reaming Block 23: Taper 24: Chip removal channel 241: First chip removal channel 242: The second chip channel 25: Cutting end 26: Slope section 27: Oblique thread 28: cutting tail slot 30: first thread 31: Serrated cutting edge W: wooden workpiece W1: first width W2: second width H1: first tooth height H2: The first reaming height H3: second reaming height

Figure 1-1: A three-dimensional view of the quick reaming screw created for this creation. Figure 1-2: is a partial enlarged view of the circled area in Figure 1-1. Picture 2-1: A three-dimensional view of the quick reaming screw for this creation. Figure 2-2: is a partial enlarged view of the circled area in Figure 2-1. Figure 3: A schematic cross-sectional view of Figure 2-2. Figure 4: The schematic diagram of the action of the quick reaming screw tap to lock the wooden workpiece. Figure 5: A schematic diagram of the partial enlargement of the reaming part of the quick reaming screw of this creation. Figure 6: A three-dimensional view of the quick reaming screw of another embodiment of this creation.

100: Fast chip removal reaming screw

10: Screw head

11: top

12: neck

13: convex rib

20: Rod body

21: Shaft

22: Reaming part

23: Taper

30: first thread

Claims (9)

A kind of fast chip removal reaming screw, mainly includes: A screw head, including a top portion and a neck portion extending from the top portion and tapering away from the top portion; A shaft extending from the neck of the screw head. The shaft includes a shaft connected to the neck, a reaming portion connected to the shaft, and a reaming portion connected to the other side of the reaming portion The taper portion, and the reaming portion includes a plurality of first reaming blocks, a plurality of second reaming blocks, and a plurality of third reaming blocks arranged in a helical staggered manner, and a plurality of pieces are formed on the first reaming block, the A chip removal channel between the second reaming block and the third reaming block, wherein the chip removal channel further includes a first chip removal channel located between any two of the first reaming blocks and a second chip removal channel located between any two of the first reaming blocks. One of the second chip removal channels between the hole blocks; and At least one first thread, and the first thread is ringed on the outer peripheral surface of the shaft from the tapered portion to the shaft portion through the reaming portion; Wherein, the first chip evacuation channel is provided with a first width on the outer peripheral surface of the rod body, and the second chip evacuation channel is provided with a second width on the outer peripheral surface of the rod body, and the first width and the second width are different from each other . The quick chip removal reaming screw according to claim 1, wherein the first width of the first chip removal channel is smaller than the second width of the second chip removal channel, and the first width is greater than zero. The quick chip removal reaming screw according to claim 1, wherein the first reaming block is ringed between the shaft portion and the taper portion. The quick chip removal reaming screw according to claim 1, wherein the third reaming block is ringed at the junction of the reaming portion and the shaft portion, and is connected to the reaming portion and the taper portion. Convergence. According to the quick chip removal reaming screw described in claim 1, further, the outer periphery of the first thread protruding from the rod has a first tooth height, and the first reaming block protrudes from the rod The outer peripheral surface of the mask has a first reaming height, the first reaming height is less than or equal to half of the first tooth height, and the first reaming height is greater than zero. According to the quick chip removal reaming screw described in claim 1, further, the outer periphery of the first thread protruding from the rod has a first tooth height, and the second reaming block protrudes from the rod The outer peripheral surface of the mask has a second reaming height, the second reaming height is less than or equal to one third of the first tooth height, and the second reaming height is greater than zero. The quick chip-removing reamer screw according to claim 1, wherein the shaft portion includes an oblique thread adjacent to the side of the first thread corresponding to the screw head. The quick chip removal reaming screw according to claim 1, wherein the first reaming block and the second reaming block are pyramids. The quick chip removal reaming screw according to claim 1, wherein each reaming block includes a cutting end and a plurality of slope sections inclined from the cutting end to the outer peripheral surface of the rod body 20.

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