TWM589245U - Helical screw - Google Patents

Abstract

This creation is a helical screw, which includes a rod body, the head end of the rod body is provided with a head, a thread is provided on the rod body and a plurality of axially arranged multiple configuration areas are divided on each configuration area Three first convex portions and three second convex portions are provided, and the three first convex portions and the three second convex portions are radially staggered, and the adjacent first convex portions and second convex portions A groove is formed between them and the end of each second convex portion forms an outwardly protruding blade portion, thereby increasing the cutting capacity and increasing the cutting lock-in speed, the first convex portion and the second convex portion are alternately arranged to interact Reduce cutting friction to achieve labor saving and increase cutting speed and cutting capacity.

Description

Screw

This creation is a helical screw, especially a helical screw that increases the chip space and improves the cutting function.

The existing helical screw includes a rod body, one end of the rod body forms a tip, and the other end of the rod body forms a head. A thread is provided on the rod body. The rod body is formed with six convex parts between two adjacent screw parts, the six convex parts are arranged radially and surround the rod body, and the ends of the six convex parts are convex arc-shaped, and the two adjacent convex parts A groove is formed between the six convex portions between two adjacent thread portions to form six grooves.

However, the end of the convex portion of the existing helical screw has a convex arc shape, the cutting ability is less than ideal, and the strength and difficulty required for locking are increased, so there is still room for improvement.

The main purpose of this creation is to provide a helical screw, thereby improving the existing helical screw using convex arc-shaped ends, resulting in the problem of unsatisfactory cutting ability and increased difficulty in locking.

For the purpose of pre-disclosure, the spiral screw of this creation includes: A rod body includes an opposite tip end and a tapered tail end, and the outer peripheral surface of the rod body is provided with a thread, the thread extends from the tail end toward the head end, and the thread has a plurality of upper and lower intervals The arranged screw teeth and the rod body form a configuration area between each adjacent two screw teeth, and a convex portion group is arranged on each configuration area, the convex portion group includes three first convexes Part and three second convex parts, and the three first convex parts and the three second convex parts are radially staggered and surround the rod body, and the adjacent first convex part and second convex part A groove is formed between them, and the end of each second convex portion forms a blade portion protruding outward; A head portion formed at the head end of the rod body, and a driving groove is formed on the outer end surface of the head portion; and Wherein, the arrangement area of the rod body is divided into a first orientation block, a second orientation block, a third orientation block, a fourth orientation block, a fifth orientation block, and a sixth orientation block arranged in a radial order Block, and the arrangement of the first convex part and the second convex part of the convex part group forms a first configuration state or a second configuration state, the first configuration state is configured for the three first convex parts respectively In the first orientation block, the third position block, and the fifth orientation block, and the three second convex portions are respectively disposed in the second orientation block, the fourth orientation block, and the sixth orientation Block, the second configuration aspect is that the three second convex portions are respectively arranged in the first orientation block, the third position block and the fifth orientation block, and the three first convex portions are respectively arranged In the second orientation block, the fourth orientation block and the sixth orientation block.

In the above, the helical screw is provided with a convex part group between every two adjacent screw parts, and each convex part group includes a first convex part and a second convex part arranged in a staggered manner. A tip protruding outward is formed at the end, thereby increasing the cutting ability and increasing the cutting lock-in speed, making the helical screw easier to lock into the work piece, which can improve the locking convenience, and the first protrusion and the blade The staggered configuration of the second convex part can reduce the cutting friction and achieve the purpose of saving labor, assist the cutting cutting speed to increase smoothly, and improve the locking convenience.

As shown in FIG. 7, the original screw is used to lock a wooden workpiece 30. As shown in FIGS. 1 to 3, the screw includes a rod body 10A, 10B, 10C and a head 20.

The rod body 10A, 10B, 10C includes a opposed tip end 11 and a tapered tail end 12, and the outer peripheral surface of the rod body 10A, 10B, 10C is provided with a thread 13, the thread 13 from the tail end 12 extends toward the head end 11, the screw thread 13 has a plurality of thread portions 131 arranged at intervals vertically, and the rod body 10A, 10B, 10C forms an arrangement area 14 between each adjacent two thread portions 131, A convex portion group 15 is disposed on each configuration area 14. The convex portion group 15 includes three first convex portions 151 and three second convex portions 152, and the three first convex portions 151 and the three The second convex portions 152 are radially staggered and surround the rods 10A, 10B, 10C, and a groove 16 is formed between the adjacent first convex portions 151 and the second convex portions 152, and each second convex portion The end of the portion is formed with a blade portion 154 that protrudes outward. As shown in FIGS. 1 and 5, the opposite two sides of each first convex portion 151 facing the adjacent groove 16 are convex arc surfaces 153. In addition, The screw portion 131 has a first side surface and a second side surface, the first side surface faces the head end 11 of the rod body 10A, 10B, 10C, and the second side surface faces the tail end of the rod body 10A, 10B, 10C 12, and the acute angle θ ₁ between the first side and the second side is 35 degrees to 45 degrees, in addition, the helical screw can be provided on the rod body 10A, 10B, 10C with a chip flute, the chip flute from The trailing end 12 of the rod body 10A, 10B, 10C extends toward the head end 11 of the rod body 10A, 10B, 10C. Also as shown in FIG. The spiral slope θ _{2 of the} second convex portion 152 is all 10 degrees to 40 degrees.

As shown in FIGS. 1, 5 and 6, the arrangement area 14 of the rod body 10A is divided into a first orientation block 141, a second orientation block 142, a third position block 143, and a fourth orientation arranged in a radial sequence Block 144, fifth azimuth block 145, and sixth azimuth block 146, and the arrangement of the first convex portion 151 and the second convex portion 152 of the convex group 15 form a first configuration or a second configuration In the aspect, the first configuration aspect is that the three first convex portions 151 are respectively disposed in the first orientation block 141, the third position block 143, and the fifth orientation block 145, and the three second positions The convex portions 152 are respectively disposed in the second orientation block 142, the fourth orientation block 144, and the sixth orientation block 146. The second configuration is that the three second convex portions 152 are respectively disposed in the first One orientation block 141, the third position block 143 and the fifth orientation block 145, and the three first convex portions 151 are respectively disposed in the second orientation block 142, the fourth orientation block 144 and the The sixth orientation block 146.

1 to 3, 8 to 10, the head 20 is formed at the head end 11 of the rod body 10A, 10B, 10C, and the outer end surface of the head 20 forms a driving groove 21A, 21B, 21C As shown in FIG. 6, the driving groove 21A has a plum blossom shape in plan view; or, as shown in FIG. 7, the driving groove 21B has a cross shape in plan view; or as shown in FIG. 8, the driving groove 21C has a chevron shape in plan view.

As shown in FIG. 1, the thread 13 extends from the trailing end 12 of the rod body 10A to the head end 11 of the rod body 10A; as shown in FIG. 2, the spiral screw is provided with an empty tooth portion 17 on the rod body 10B The empty tooth portion 17 surrounds the rod body 10B and is adjacent to the head 20, wherein the length of the empty tooth portion 17 can be adjusted according to usage requirements, and the length of the empty tooth portion 17 can be the length of the rod body 10B 1/4 or 1/3; as shown in FIG. 3, the helical screw is provided with a semi-empty tooth portion 18 on the rod body 10C, the semi-empty tooth portion 18 is adjacent to the head 20 and does not surround the rod body 10C, wherein The length of the semi-empty tooth portion 18 can be adjusted according to usage requirements, and the length of the semi-empty tooth portion 18 can be 1/4 or 1/3 of the length of the rod body 10C.

As shown in FIG. 1, FIG. 5 and FIG. 6, in the spiral screw, the arrangement of the convex portion groups 15 arranged up and down can adopt a configuration in which the first configuration state and the second configuration state are interlaced, that is, the first configuration state is adopted The convex group 15 adjacent to the same convex group 15 adopts the second configuration; or the rod body 10A of the helical screw forms a first half and a second half, and the first half is adjacent to the The head end 11 of the rod body 10A, the second half section is adjacent to the tail end 12 of the rod body 10A, wherein the length of the first half section is equal to the length of the second half section, and the length of the first half section is 1/2 of the length of the rod body 10A, the convex group 15 located in the first half adopts the first configuration, and the convex group 15 located in the second half adopts the second configuration, or located in the first The convex group 15 in the half section adopts the second configuration, and the convex group 15 in the second half adopts the first configuration. In the above, the first configuration and the second configuration are interleaved In addition to the arrangement or half-section arrangement, the configuration can also be adjusted according to needs.

As shown in FIGS. 7 to 10, the screw can be used to lock the wooden workpiece 30. The trailing end 12 of the screw body 10B abuts the wooden workpiece 30. The user can insert a hand tool into the head of the screw The driving grooves 21A, 21B, and 21C of 20 drive the helical screw into the wooden workpiece 30 through the rotation of the hand tool. During the screwing process, the first convex part 151 of the convex part group 15 on the rod body 10B 2. The second convex portion 152 and the blade portion 154 can cut the wooden workpiece 30, and the groove 16 between the first convex portion 151 and the second convex portion 152 can provide a chip accommodation under cutting.

In summary, the convex group 15 provided in the arranging area 14 of the spiral screw allows the first convex 151 and the second convex 152 to be staggered, and the end of each second convex 152 forms an outwardly protruding blade 154, can improve the cutting ability and increase the cutting lock-in speed, so that the helical screw can be more easily locked into the wooden workpiece 30, to improve the operation and locking convenience of the helical screw, and the first convex portion 151 and the first The staggered arrangement of the two convex portions 152 can reduce the cutting friction force, which makes locking of the helical screw more labor-saving, and can also increase the cutting speed, cutting function, and locking convenience.

10A, 10B, 10C ‧‧‧ rod body 11‧‧‧ head end 12‧‧‧ tail end 13‧‧‧ thread 131‧‧‧ thread part 14‧‧‧ configuration area 141‧‧‧ first orientation block 142 ‧‧‧Second orientation block 143‧‧‧Third-position block 144‧‧‧Fourth orientation block 145‧‧‧Fifth orientation block 146‧‧‧Sixth orientation block 15‧‧‧Convex part Group 151‧‧‧First convex part 152‧‧‧Second convex part 153‧‧‧Convex arc surface 154‧‧‧Blade part 16‧‧‧Groove 17‧‧‧Empty tooth part 18‧‧‧Semi-empty tooth part 20‧‧‧Head 21A, 21B, 21C‧‧‧Drive slot 30‧‧‧Wooden workpiece θ ₁ ‧‧‧Acute angle θ ₂ ‧‧‧Helix slope

Fig. 1: A schematic plan view of the first preferred embodiment of the screw screw creation. Figure 2: This is a schematic plan view of a second preferred embodiment of a spiral screw. Fig. 3: A schematic plan view of a third preferred embodiment of the screw screw creation. Fig. 4: A schematic perspective view of the second preferred embodiment of the screw screw creation. Figure 5: A schematic cross-sectional view of the A-A cut line of Figure 1. Figure 6: A schematic cross-sectional view of the B-B cut line of Figure 1. FIG. 7 is a schematic view of the use state of the second preferred embodiment of the screw screw creation. Figure 8: A schematic plan view of the driving groove of the head of the spiral screw. Figure 9: Another schematic plan view of the driving groove of the head of the spiral screw. Figure 10: Another schematic plan view of the driving groove of the head of the spiral screw. Fig. 11 is a partially enlarged schematic view of Fig. 1.

10A‧‧‧rod

11‧‧‧Head

12‧‧‧End

13‧‧‧Thread

131‧‧‧Thread

14‧‧‧ Configuration area

15‧‧‧Convex group

151‧‧‧First convex

152‧‧‧The second convex part

154‧‧‧Blade

16‧‧‧groove

20‧‧‧Head

θ ₁ ‧‧‧ acute angle

Claims (12)

A spiral screw, which contains: A rod body includes an opposite tip end and a tapered tail end, and the outer peripheral surface of the rod body is provided with a thread, the thread extends from the tail end toward the head end, and the thread has a plurality of upper and lower intervals The arranged screw teeth and the rod body form a configuration area between each adjacent two screw teeth, and a convex portion group is arranged on each configuration area, the convex portion group includes three first convexes Part and three second convex parts, and the three first convex parts and the three second convex parts are radially staggered and surround the rod body, and the adjacent first convex part and second convex part A groove is formed between them, and the end of each second convex portion forms a blade portion protruding outward; A head portion formed at the head end of the rod body, and a driving groove is formed on the outer end surface of the head portion; and Wherein, the arrangement area of the rod body is divided into a first orientation block, a second orientation block, a third orientation block, a fourth orientation block, a fifth orientation block, and a sixth orientation block arranged in a radial order Block, and the arrangement of the first convex part and the second convex part of the convex part group forms a first configuration state or a second configuration state, the first configuration state is configured for the three first convex parts respectively In the first orientation block, the third position block, and the fifth orientation block, and the three second convex portions are respectively disposed in the second orientation block, the fourth orientation block, and the sixth orientation Block, the second configuration aspect is that the three second convex portions are respectively arranged in the first orientation block, the third position block and the fifth orientation block, and the three first convex portions are respectively arranged In the second orientation block, the fourth orientation block and the sixth orientation block. The helical screw according to claim 1, wherein the thread extends from the tail end of the rod body to the head end of the rod body. The helical screw according to claim 1, wherein the helical screw is provided with an empty tooth portion on the rod body, and the empty tooth portion surrounds the rod body and is adjacent to the head. The helical screw according to claim 1, wherein the helical screw is provided with a hollow tooth portion on the rod body, and the hollow tooth portion is adjacent to the head. The helical screw according to any one of claims 1 to 4, wherein, in the helical screw, the arrangement of the convex portions arranged up and down is a staggered arrangement of the first arrangement aspect and the second arrangement aspect. The helical screw according to any one of claims 1 to 4, wherein, in the helical screw, the rod body forms a first half and a second half, and the convex groups located on the first half are both The first configuration is adopted, and the convex part groups in the second half are all adopted the second configuration. The helical screw according to claim 6, wherein the length of the first half is equal to the length of the second half, and the length of the first half is 1/2 of the length of the rod body. The helical screw according to any one of claims 1 to 4, wherein, in the helical screw, the rod body forms a first half and a second half, and the convex groups located on the first half are both The second configuration is adopted, and the convex groups located in the second half are all in the first configuration. The helical screw according to any one of claims 1 to 4, wherein in the convex portion group, the spiral inclination of the first convex portion and the second convex portion are both 10 degrees to 40 degrees. The helical screw according to claim 5, wherein in the convex portion group, the spiral inclination of the first convex portion and the second convex portion are both 10 degrees to 40 degrees. The helical screw according to claim 6, wherein in the convex portion group, the spiral inclination of the first convex portion and the second convex portion are both 10 degrees to 40 degrees. The helical screw according to claim 8, wherein in the convex portion group, the spiral inclination of the first convex portion and the second convex portion are both 10 degrees to 40 degrees.

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