TWM555897U - Screw - Google Patents

Abstract

The present invention provides a screw, which mainly forms a toothless section between the first thread of the shaft and the guiding tooth, and at the same time, a tooth and a guiding tooth are respectively arranged at the toothless section. When the two ends are connected to the cutting edge for the lock cooperation, the guiding teeth can be used to assist the locking portion to lock in, and the edentulous portion can be utilized for the cutting of the chip to be generated by the locking process, and the cutting The blade can also assist the cutting of the uncut wood fiber into the process, effectively reducing the locking resistance, thereby accelerating the lifting and locking efficiency.

Description

Screw

The present invention relates to a screw design, and in particular to a screw that accelerates the lifting and locking efficiency.

Referring to FIG. 1, the conventional screw 1 includes a screw head 11, a rod body 12 extending outward from the screw head 11, a locking portion 13 opposite to the screw head 11 and formed at the other end of the rod body 12, and a screw ring 14 is disposed on the rod body 14; therefore, when the lock cooperation is performed, a tool (not shown) is used to link the screw head 11 into the lock compound 2, At the same time, the thread 14 is further driven by the rotation of the tool, and the screwing portion 13 is continuously screwed into the lock compound 13 to achieve the effect of the lock positioning. .

However, it has been found that, after use, the screw 1 can only enter the lock compound 2 by means of the locking portion 13 in a progressively and squeezing manner during the locking process until the thread 14 continues the locking portion 13 . The locking compound 2 is inserted into the lock compound 2, so that the screwing action of the thread 13 can be performed. Therefore, only the fiber of the lock compound 2 can be sheared by the screw 14 during the relocking process. However, the locking portion 13 is still subjected to the screwing action of the screw head 11 at the initial stage of the locking, thereby causing the locking compound 2 to be squeezed, so that the fiber of the lock compound 2 cannot be effectively The cutting is performed, and at the same time, the fiber of the lock compound 2 is wound around the rod body 12, so that the locking torque is greatly increased, which not only affects the actual locking efficiency, but also causes the chips generated by the subsequent screwing to be easily The chip discharge groove 141 formed between the screw teeth 14 is discharged outward, so that the chip is easily accumulated in the lock compound 2, and if the screw 1 is continuously driven by the tool, the lock compound is 2 produces a twist lock, which will not only be relatively laborious, but also more In the lock compound 2, there are excessive chips to form a pressing phenomenon inside the lock compound 2, which tends to cause the loss of the cracked material of the lock compound 2, which needs to be improved.

Therefore, the purpose of the present invention is to provide a screw which can effectively reduce the generation of the locking resistance, thereby accelerating the lifting and locking efficiency.

Therefore, the novel screw comprises a screw head, a rod body extending outward from the screw head, a locking portion formed on the other end of the rod body opposite to the screw head, and a spiral ring disposed on the rod body And a first thread extending from the screw head to the locking portion; in particular, a guiding tooth extending from the locking portion toward the screw head is further disposed on the rod body, and the first screw The two ends of the tooth corresponding to the guiding tooth are not in a contact state, so that an arrangement of the toothless section is formed between the first thread and the guiding tooth, and at the same time, a toothless section is provided at the toothless section. a cutting edge, wherein the two ends of the cutting edge are respectively connected to the first screw and the guiding tooth, and the radial direction of the cutting edge protruding outward is smaller than the radial direction of the first screw protruding outward; In the initial stage of the locking, the locking tooth can be rotated through the guiding tooth to lock the locking compound, and at the same time, the edentulous section can be used for the storage of the chip during the locking process, and then used continuously. The special auxiliary fitting of the cutting edge is arranged to firstly fix the fiber of the lock compound which is not cut and partially wound on the twisting process Pushing and then cutting, so that after the lock is broken, it is pressed by the subsequent screwing to generate an elastic restoring force of the fiber of the lock compound, thereby reducing the benefit of the fiber blocking screwing effect, thereby effectively reducing the first of the connection. When the screw is locked and friction is generated between the lock compound, the improper winding of the fiber of the lock compound can be effectively avoided to reduce the locking speed, and the setting of the toothless section is utilized to increase the smoothness of the guide chip. Sex and improve the effect of chipping, greatly reducing the locking resistance, effectively speeding up the efficiency of lifting and locking.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention.

Referring to FIG. 2, in the first preferred embodiment of the present invention, the screw 3 includes a screw head 31, a rod body 32 extending outwardly from the screw head 31, and a screw head 31 opposite thereto and formed on the rod body 32. a locking portion 33 at the other end, a spiral ring is disposed on the rod body 32, and the first thread 34 extending from the screw head 31 toward the locking portion 33, and a first screw 34 disposed on the rod body 32 The locking portion 33 extends toward the guiding head 35 of the screw head 31, and the two ends of the first thread 34 corresponding to the guiding tooth 35 are in an unconnected state, so that the first screw A toothless section 321 is formed between the tooth 34 and the guiding tooth 35, and at least one cutting edge 36 is disposed on the toothless section 321, and the two ends of the cutting edge 36 and the first thread are respectively 34 is in contact with the guiding tooth 35, and the outwardly protruding height b1 of the cutting edge 36 is smaller than the maximum outer diameter a1 of the first screw 34; and the toothless section 321 is in view of the first screw The structural design factor that the teeth 34 are not in contact with the guiding teeth 35 allows the accommodating space of the edentulous section 321 to be enlarged.

Referring to FIG. 3, the cutting edge 36 has a vertical surface 361, an inclined surface 362 extending obliquely outward from the vertical surface 361, and a vertical surface 361 and the inclined surface 362 are formed. The cutting edge 363 is the same as the aforementioned cutting edge 363 in the direction in which the screw 3 is locked.

Referring to FIG. 2 to FIG. 4, when the lock is engaged, a locking torque is applied to the screw head 31 by a tool (not shown) to abut the lock portion on the lock compound 4. 33, the interlocking advancement and the screw lock into the lock compound 4, when the guide tooth 35 near the lock portion 33 is driven to be screwed in with the lock portion 33, The lock compound 4 performs an initial cutting operation so that the screw 3 can quickly enter the lock compound 4, so that when the guide tooth 35 is screwed in, the rotation torque can be driven by the rotation torque The method of progressively cutting and cutting the fibers generated during the locking, thereby effectively cutting the fibers that are wound around the locking portion 33 at the initial stage of the locking, and simultaneously utilizing the toothless section 321 for the locking portion 33 The chip is placed in the locking process of the guiding tooth 35, and the outward discharge is accelerated. When the screwing is continued, the special portion of the cutting edge 36 is used in the toothless section 321 by the cutting. The blade 36 can assist the cutting of the guiding tooth 35, so that when the cutting edge 36 engages the guiding tooth 35 for screwing and locking, the cutting edge 36 can be utilized. The multiple cutting effect of the guiding tooth 35 is matched, that is, the vertical surface 361 is used to push the fiber of the lock compound 4 which is not cut and partially wound on the screwing process, and is performed by the cutting edge 363. After cutting, the inclined surface 362 is used to allow the chips to be discharged outward through the first thread 34, thereby breaking the lock and then being pressed by the subsequent screwing to cause the fiber of the lock compound 4 to be generated. An elastic restoring force, thereby reducing the benefit of the fiber blocking screwing effect, so that some of the fibers are indeed cut off, especially for a harder material, which can achieve better drilling and cutting effects, and therefore, in addition to being labor-saving, Increasing the locking speed, thereby effectively avoiding the lack of resistance of the fiber of the lock compound 4, and at the same time, more utilizing the enlarged setting of the toothless section 321 to increase the locking portion 33 and the guiding tooth When the lock is 35, the part of the generated chips is guided to the outward direction of the first screw 34, and the chipping effect of the partial chip is increased, of course, by the outward protrusion height of the cutting edge 36. B1 is smaller than the maximum outer diameter of the first screw 34 protruding outward 1 is designed to prevent the cutting edge 36 from forming a fiber that excessively cuts the lock compound 4, so that it is more advantageous to follow the speed at which the first screw 34 continues to attack, that is, the first screw 34 is locked by the lock. The fiber density of the compound 4 is changed by the timely pushing action of the cutting edge 36, further forming a tighter meshing effect with the lock compound 4, and the lock is also cut into the tooth surface of the first screw 34. In the case of the compound 4, there will be no occurrence of a broken tooth and affect the lock cooperation industry, so that not only can the resistance and the torsion force of the lock be effectively reduced, but also the stability effect is good, and there is no excessive chipping caused by continuing the drill lock. Compression, which hinders the speed of the drill lock, effectively improves the locking speed and fastening force.

Referring to FIG. 5, a second preferred embodiment of the present invention still includes the main components described in the previous embodiment. In this embodiment, the screw 3 is fully characterized, and the screw 3 is used in the figure. The other direction is different, and the difference between the embodiment and the previous embodiment is that the toothless section 321 is provided with at least one planing blade 38 so that the toothless section 321 has at least the cutting edge. 36 is disposed in two corresponding manners with the planing blade 38, and the direction of the planing blade 38 is the same as the direction in which the screw 3 is locked, and the two ends of the cutting edge 36 are still respectively associated with the first screw 34. One end of the guiding tooth 35 is connected, and the two ends of the planing blade 38 are not connected to the first screw 34 and the guiding tooth 35; therefore, the toothless section 321 has both The design of the cutting edge 36 and the planing edge 38 not only enables quick locking positioning in the initial stage of locking, but also more effectively utilizes the cutting edge 36 and the cutting edge 38 to assist the screw of the guiding tooth 35. Into the drill lock operation, in addition to more labor-saving and can increase the locking speed, and greatly reduce the subsequent first thread 34 screwing lock resistance, at the same time can effectively reduce the friction between the lock compound 4, not only the force and time can be greatly reduced, and can increase the screw 3 and the lock compound 4 Fastening force, and effectively reduce the resistance of the lock and accelerate the lifting and locking efficiency.

Referring to FIG. 6 , a third preferred embodiment of the present invention is further provided with a second thread 37 which is interlaced with the first thread 34 in the embodiment. The design of the second thread 37 is applied to the second embodiment, that is, as shown in the fourth preferred embodiment of FIG. 7, the second thread 37 is attached to the toothless section 321 One end of the planing blade 38 is connected such that the first and second screws 34 and 37 are disposed on the rod 32 in a double helix shape. Therefore, the first and second threads 34 are The arrangement of the interlaced wraps made up of 37 can greatly improve the locking effect of the subsequent accelerated drilling and cutting speed and efficiency in the process of producing the drill lock, which not only can greatly reduce the locking resistance, but also effectively eliminate the accumulated debris. The utility model can effectively improve the locking smoothness, and can more effectively increase the fastening force between the screw 3 and the lock compound 4 after the locking, thereby effectively achieving the stable locking positioning effect.

Referring to FIG. 8, the fifth preferred embodiment of the present invention has the same functions as the first embodiment in achieving the functions of fastening and reducing the locking resistance and the torsion, and in particular, the lock is in this embodiment. An auxiliary tooth 39 interlaced with the guiding tooth 35 is further disposed on the engaging portion 33, so that the guiding tooth 35 and the auxiliary tooth 39 are disposed in the double-spiral state at the locking portion 33, and the auxiliary tooth The design of 39 can also be applied to the second preferred embodiment, that is, the sixth preferred embodiment shown in FIG. 9, while one end of the planing blade 38 is connected to the auxiliary tooth 39, or is applied to the first In the third preferred embodiment, as shown in the seventh preferred embodiment shown in FIG. 10, the rod body 32 has both the first and second threads 34, 37, and the locking portion 33 has The guide teeth 35 are interleaved with the auxiliary teeth 39 or applied to the fourth preferred embodiment, that is, as shown in the eighth preferred embodiment of FIG. 11, the planing blade 38 is as described above. The two ends are respectively connected to the two screws 37 and the auxiliary teeth 39.

Therefore, the staggered configuration of the guiding teeth 35 and the auxiliary teeth 39 is to assist the screwing of the locking portion 33 to improve the speed of screwing into the lock compound 4. At the same time, the resistance of the initial screwing can be reduced when the lock is made, and the design of the cutting edge 36, or both the cutting edge 36 and the planing edge 38, is utilized to accelerate the lock. The fiber cutting effect of the compound 4 does not cause chipping, which is beneficial to the frictional resistance of the screw 3 during the drilling and locking process, and the torsion force is greatly reduced, thereby effectively improving the efficiency of drilling and cutting, and greatly improving the lock. It is more smooth and more beneficial to increase the fastening force between the screw 3 and the lock compound 4 after locking, and effectively achieve the stable locking positioning effect.

In summary, the screw of the present invention has a guiding tooth by using the locking portion, and at least one cutting edge is provided on the toothless portion between the first thread and the guiding tooth, so that the guiding can be utilized first during the locking. The tooth-assisted locking portion is locked in, and the edentulous portion is used for the squeezing of the cutting process, and the cutting edge is matched with the multiple cutting effect of the guiding tooth, that is, The fiber of the lock compound which is cut and partially wound thereon is first pushed and then cut, thereby breaking the lock and then being squeezed by the subsequent screwing to generate an elastic restoring force of the fiber of the lock compound. The fiber is prevented from being screwed in to reduce mutual friction between the first screw and the lock compound, so that the first screw can further form a tighter meshing effect with the lock compound. This not only can effectively reduce the resistance and torque of the lock, and has a good stability effect. When the drill is continuously drilled, there will be no excessive swarf to cause pressure and hinder the speed of the drill lock, effectively reducing the lock resistance and accelerating the lock. Efficiency and Solid force and other effects, can indeed achieve the purpose of the present novel.

However, the above description is only for the purpose of illustrating the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the new specification. All should remain within the scope of this new patent.

(known)
1‧‧‧ screws
11‧‧‧ screw head
12‧‧‧ rod body
13‧‧‧Locking Department
14‧‧‧ thread
2‧‧‧Lock compound
(this new type)
3‧‧‧ screws
31‧‧‧ screw head
32‧‧‧ rod body
33‧‧‧Locking Department
34‧‧‧First thread
35‧‧‧ guiding teeth
36‧‧‧ cutting edge
37‧‧‧Second thread
38‧‧‧Shaving blade
39‧‧‧Assistive teeth
321‧‧‧ toothless section
361‧‧‧Vertical
362‧‧‧Sloping surface
363‧‧‧ cutting edge
4‧‧‧Lock compound
A1‧‧‧ thread diameter
B1‧‧‧ cutting edge height

Figure 1 is a schematic view of a conventional screw. Figure 2 is a schematic view of a first preferred embodiment of the present invention. Figure 3 is a cross-sectional view of the A-A of the first preferred embodiment. Figure 4 is a schematic view showing the locked state of the first preferred embodiment. Figure 5 is a schematic view of a second preferred embodiment of the present invention. Figure 6 is a schematic view of a third preferred embodiment of the present invention. Figure 7 is a schematic view of a fourth preferred embodiment of the present invention. Figure 8 is a schematic view of a fifth preferred embodiment of the present invention. Figure 9 is a schematic view of a sixth preferred embodiment of the present invention. Figure 10 is a schematic view of a seventh preferred embodiment of the present invention. Figure 11 is a schematic view of an eighth preferred embodiment of the present invention.

3‧‧‧ screws

31‧‧‧ screw head

32‧‧‧ rod body

33‧‧‧Locking Department

34‧‧‧First thread

35‧‧‧ guiding teeth

36‧‧‧ cutting edge

321‧‧‧ toothless section

361‧‧‧Vertical

362‧‧‧Sloping surface

363‧‧‧ cutting edge

A1‧‧‧ thread diameter

B1‧‧‧ cutting edge height

Claims (9)

A screw comprising a screw head, a rod body extending outwardly from the screw head, a locking portion opposite to the screw head and formed at the other end of the rod body, and a spiral ring disposed on the rod body a first thread; wherein the first thread is extended from the screw head toward the locking portion; and the rod body is further provided with a guiding portion extending from the locking portion toward the screw head a toothing, wherein the two ends of the guiding tooth corresponding to the first thread are not in contact with each other, so that an a toothless section is formed between the first thread and the guiding tooth, and at the same time The edentulous section is provided with at least one cutting edge, and the two ends of the cutting edge are respectively connected with the guiding teeth, and the cutting edge has an outward protruding height smaller than the first thread. The largest outer diameter that protrudes outward. The screw according to claim 1, wherein the edentulous section is provided with at least one planing blade, and the aforementioned cutting edge has the same orientation as the screw lock. The screw according to claim 1, wherein the rod body is further provided with a second thread that is interlaced with the first thread, so that the first and second threads are in a double helix state. Set on the pole. The screw according to claim 2, wherein the rod body is further provided with a second thread that is interlaced with the first thread, so that the first and second threads are in a double helix state. The second screw is disposed on the rod body, and the second screw is connected to one end of the shaving blade. The screw according to claim 1, wherein the locking portion is further provided with an auxiliary tooth that is interlaced with the guiding tooth, so that the guiding tooth and the auxiliary tooth are arranged in a double helix state. At the lock. The screw according to claim 2, wherein the locking portion is further provided with an auxiliary tooth that is interlaced with the guiding tooth, so that the guiding tooth and the auxiliary tooth are arranged in a double helix state. At the locking portion, the auxiliary tooth is in contact with one end of the planing blade. The screw according to claim 3, wherein the locking portion is further provided with an auxiliary tooth that is interlaced with the guiding tooth, so that the guiding tooth and the auxiliary tooth are arranged in a double helix state. At the lock. The screw according to claim 4, wherein the locking portion is further provided with an auxiliary tooth that is interlaced with the guiding tooth, so that the guiding tooth and the auxiliary tooth are arranged in a double helix state. The locking portion is disposed, and the two ends of the cutting edge are respectively connected to the auxiliary teeth. The screw according to claim 1, wherein the cutting edge has a vertical surface, an inclined surface extending obliquely outward from the vertical surface, and a cutting edge formed by the vertical surface and the inclined surface And the aforementioned cutting edge is oriented in the same direction as the screw lock.