TWM530357U

TWM530357U - Improved screw

Info

Publication number: TWM530357U
Application number: TW105205806U
Authority: TW
Inventors: jin-cai Chen
Original assignee: Chaen Wei Corp
Priority date: 2016-04-25
Filing date: 2016-04-25
Publication date: 2016-10-11

Description

Improved screw

本創作係一種螺絲，尤指提升咬合力的改良型螺絲。This creation is a type of screw, especially an improved screw that improves the bite force.

現有螺絲包含一盤設螺紋的桿體，該桿體的底端形成一尖部，該桿體的頂端形成一頭部，該頭部具有一連接至該桿體的錐面，該頭部於該錐面上設置多數間隔排列的凹弧部，每一凹弧部具有二對稱的弧面，以及兩相鄰之凹弧部之間形成一凸部，該頭部的頂面形成一作業孔，其中，操作人員可藉由工具的末端插入該頭部的作業孔，進而可轉動該螺絲以鎖組複數物件，然而，該頭部在鎖入過程中，該頭部的凸部可切削並形成碎屑，碎屑被擠入凹弧部，又凹弧部具有二對稱的弧面，所以碎屑擠入凹弧部時，弧面與碎屑之間的產生的止擋力不足，所以螺絲的咬合力與鎖固力不佳。The existing screw comprises a threaded rod body, the bottom end of the rod body forming a tip portion, the top end of the rod body forming a head portion having a tapered surface connected to the rod body, the head portion being The tapered surface is provided with a plurality of concave arc portions arranged at intervals, each concave arc portion has two symmetrical arc surfaces, and a convex portion is formed between the two adjacent concave arc portions, and a top surface of the head portion forms a working hole The operator can insert the working hole of the head by the end of the tool, and then the screw can be rotated to lock the plurality of objects. However, the head can be cut and the head can be cut during the locking process. Forming debris, the debris is squeezed into the concave arc portion, and the concave arc portion has two symmetrical arc surfaces, so when the debris is squeezed into the concave arc portion, the stopping force generated between the curved surface and the debris is insufficient, so The bite force and locking force of the screw are not good.

本創作之主要目的在於提供一種改良型螺絲，藉此改善現有螺絲之咬合力與鎖固力不佳的問題。The main purpose of this creation is to provide an improved type of screw to improve the bite force and poor locking force of existing screws.

為達成前揭之目的，本創作改良型螺絲包含一桿體，該桿體的一端形成一尖部，以及該桿體的一端形成一頭部，該尖部的外側面盤設一延伸至該桿體的螺紋部，且該尖部的外側面設置一排屑槽，該頭部於相對該桿體的一端形成一平面，該平面上設置一作業孔，該頭部的外側面形成一錐面，該錐面位於該平面與該桿體之間，該錐面上設置多數間隔排列的切削凸部，每一切削凸部具有一切削刃，並於該切削刃的兩側分別形成一迎面及一背面，該頭部自該切削凸部的迎面延伸一導引面，以及該頭部自該切削凸部的背面延伸一止擋面，該止擋面延伸並連接至鄰近導引面，且在該頭部的錐面上形成位於兩相鄰之切削凸部之間的容置凹部。For the purpose of the foregoing disclosure, the modified screw of the present invention comprises a rod body having a tip formed at one end thereof, and one end of the rod body forms a head portion, and the outer side surface of the tip portion is extended to the a threaded portion of the rod body, and an outer side surface of the tip portion is provided with a chip groove, the head portion forming a plane at an end opposite to the rod body, the working surface is provided with a working hole, and the outer side surface of the head portion forms a cone The tapered surface is located between the plane and the rod body, and the tapered surface is provided with a plurality of spaced apart cutting convex portions, each cutting convex portion has a cutting edge, and an inward surface is formed on each side of the cutting edge And a back surface extending from the front surface of the cutting protrusion to a guiding surface, and the head extending from the back surface of the cutting protrusion to a stopping surface, the stopping surface extending and connecting to the adjacent guiding surface And a receiving recess between the two adjacent cutting protrusions is formed on the tapered surface of the head.

上述中，該改良型螺絲可用以鎖組複數物件，該頭部鎖入物件的過程中，該些切削凸部的切削刃可切削物件，以提高鎖入能力，且切削刃於切削時產生的碎屑經由該導引面，朝與導引面連接的止擋面的方向導引，且止擋面可止擋碎屑，進而提高咬合力與鎖固力。In the above, the modified screw can be used to lock a plurality of objects. During the locking of the object, the cutting edges of the cutting protrusions can cut the object to improve the locking ability, and the cutting edge is generated during cutting. The debris is guided in the direction of the stop surface connected to the guide surface via the guide surface, and the stop surface can stop the debris, thereby increasing the biting force and the locking force.

請參閱圖1至圖3，為本創作改良型螺絲之一種較佳實施例，其包含一桿體10，該桿體10的一端形成一尖部11，以及該桿體10的一端形成一頭部20，該尖部11的外側面盤設一延伸至該桿體10的螺紋部12，且該尖部11的外側面設置一排屑槽13，該頭部20於相對該桿體10的一端形成一平面21，該平面21上設置一作業孔22，該頭部20的外側面形成一錐面，該錐面位於該平面21與該桿體10之間，如圖3、圖4所示，該錐面上設置多數間隔排列的切削凸部23，每一切削凸部23具有一切削刃231，並於該切削刃231的兩側分別形成一迎面232及一背面233，該頭部20自該切削凸部23的迎面232延伸一導引面24，以及該頭部20自該切削凸部23的背面233延伸一止擋面25，該止擋面25延伸並連接至鄰近導引面24，且在該頭部20的錐面上形成位於兩相鄰之切削凸部23之間的容置凹部26。Referring to FIG. 1 to FIG. 3, a preferred embodiment of the modified screw of the present invention comprises a rod body 10, one end of which is formed with a tip portion 11, and one end of the rod body 10 forms a head. The outer side of the tip portion 11 is provided with a threaded portion 12 extending to the rod body 10, and the outer side of the tip portion 11 is provided with a chip flute 13 opposite to the rod body 10. One end is formed with a working surface 22, and a working hole 22 is formed on the flat surface 21. The outer surface of the head 20 forms a tapered surface, and the tapered surface is located between the flat surface 21 and the rod body 10, as shown in FIG. 3 and FIG. A plurality of spaced apart cutting protrusions 23 are disposed on the tapered surface. Each of the cutting protrusions 23 has a cutting edge 231, and an inward surface 232 and a back surface 233 are formed on both sides of the cutting edge 231. 20 extends from a front surface 232 of the cutting projection 23 to a guiding surface 24, and the head portion 20 extends from the back surface 233 of the cutting projection 23 to a stop surface 25 which extends and is connected to the adjacent guide The face 24 and the receiving recess 26 between the adjacent cutting projections 23 are formed on the tapered surface of the head 20.

如圖1、圖3所示，該頭部20的外側面設置一輔助面27，該輔助面27連接該錐面與該桿體10，該輔助面27上設置複數間隔排列的輔助切削肋28，該些輔助切削肋28延伸連接至對應的切削凸部23。As shown in FIG. 1 and FIG. 3, an auxiliary surface 27 is disposed on the outer surface of the head portion 20. The auxiliary surface 27 is connected to the tapered surface and the rod body 10. The auxiliary surface 27 is provided with a plurality of auxiliary cutting ribs 28 arranged at intervals. The auxiliary cutting ribs 28 are extended to the corresponding cutting projections 23.

如圖1至圖3所示，該改良型螺絲於該桿體10的外側面形成一第一輔助牙14、一第二輔助牙15及一第三輔助牙16，該第一輔助牙14、第二輔助牙15、第三輔助牙16皆與該螺紋部12相交，且該第一輔助牙14、第二輔助牙15與第三輔助牙16的螺旋方向皆與該螺紋部12的螺旋方向相反，其中，該螺紋部12係右旋，該第一輔助牙14、第二輔助牙15與第三輔助牙16為左旋，以及該第二輔助牙15的底端位於該第一輔助牙14的頂端的下方，該第二輔助牙15的頂端位於該第三輔助牙16的底端的上方，或者該螺紋部12係左旋，該第一輔助牙14、第二輔助牙15與第三輔助牙16為右旋，或者該第一輔助牙14、第二輔助牙15與第三輔助牙16的螺旋方向皆與該螺紋部12的螺旋方向相同，即第一輔助牙14、第二輔助牙15、第三輔助牙16與螺紋部12皆為左旋，或者皆為右旋，此外，該第一輔助牙14、第二輔助牙15與第三輔助牙16相對該桿體10的中心軸係等角度分布。As shown in FIG. 1 to FIG. 3 , the modified screw forms a first auxiliary tooth 14 , a second auxiliary tooth 15 and a third auxiliary tooth 16 on the outer side surface of the rod body 10 , and the first auxiliary tooth 14 . The second auxiliary tooth 15 and the third auxiliary tooth 16 both intersect the threaded portion 12, and the spiral directions of the first auxiliary tooth 14, the second auxiliary tooth 15 and the third auxiliary tooth 16 are both the spiral direction of the threaded portion 12. In contrast, the threaded portion 12 is right-handed, the first auxiliary tooth 14, the second auxiliary tooth 15 and the third auxiliary tooth 16 are left-handed, and the bottom end of the second auxiliary tooth 15 is located at the first auxiliary tooth 14 Below the top end, the top end of the second auxiliary tooth 15 is located above the bottom end of the third auxiliary tooth 16, or the threaded portion 12 is left-handed, the first auxiliary tooth 14, the second auxiliary tooth 15 and the third auxiliary tooth 16 is right-handed, or the spiral directions of the first auxiliary teeth 14, the second auxiliary teeth 15 and the third auxiliary teeth 16 are the same as the spiral direction of the threaded portion 12, that is, the first auxiliary teeth 14 and the second auxiliary teeth 15 The third auxiliary tooth 16 and the threaded portion 12 are both left-handed or right-handed. In addition, the first auxiliary tooth 14 and the second auxiliary Teeth 15 and teeth 16 relative to the center of the third auxiliary shaft 10 and the like angular distribution of the rod.

另如圖3、圖5所示，該改良型螺絲於該螺紋部12上設置多數間隔排列的齒部17，於本創作較佳實施例中，每一齒部17具有三個間隔排列的凹口，且中間的凹口的口徑大於兩側之凹口的口徑，或者每一齒部17的三個凹口的口徑相同。As shown in FIG. 3 and FIG. 5, the modified screw is provided with a plurality of spaced-apart tooth portions 17 on the threaded portion 12. In the preferred embodiment of the present invention, each tooth portion 17 has three spaced-apart concave portions. The mouth and the diameter of the recess in the middle are larger than the diameter of the notches on both sides, or the diameters of the three notches of each tooth portion 17 are the same.

如圖6所示，該改良型螺絲可用以鎖組複數物件30，該尖部11鑽入物件30的過程中產生的碎屑可經由螺紋部12朝該頭部20的方向移動，以及碎屑可經由該排屑槽13排出，以及該螺紋部12上設置的齒部17可輔助切削，其中，在螺紋部12與桿體10之間的碎屑通過該第一輔助牙14、第二輔助牙15與第三輔助牙16時，由於第一輔助牙14、第二輔助牙15與第三輔助牙16沒有相連接，所以可以降低阻力，而第一輔助牙14、第二輔助牙15與第三輔助牙16可提高咬合力。As shown in FIG. 6, the modified screw can be used to lock a plurality of objects 30, and debris generated during the process of drilling the object 30 can be moved toward the head 20 via the threaded portion 12, and debris. The chip can be discharged through the chip flute 13 and the tooth portion 17 provided on the threaded portion 12 can assist the cutting, wherein the debris between the threaded portion 12 and the shaft 10 passes through the first auxiliary tooth 14 and the second auxiliary When the tooth 15 and the third auxiliary tooth 16 are not connected, since the first auxiliary tooth 14 and the second auxiliary tooth 15 are not connected to the third auxiliary tooth 16, the resistance can be reduced, and the first auxiliary tooth 14 and the second auxiliary tooth 15 are The third auxiliary tooth 16 can increase the bite force.

綜上所述，該改良型螺絲於頭部20設置凸出的切削凸部23，可以提高切削能力，使該改良型螺絲更易於鎖入物件30，且導引面24可導引碎屑，止擋面25可提供止擋而增加咬合力、鎖固力，另外，不連接的第一輔助牙14、第二輔助牙15、第三輔助牙16可減少阻力並提高咬合力，此外，該些齒部17的設置，可輔助切削，讓該改良型螺絲更易於鎖入物件30。In summary, the modified screw is provided with a convex cutting protrusion 23 on the head 20, which can improve the cutting ability, make the modified screw easier to lock into the object 30, and the guiding surface 24 can guide the debris. The stop surface 25 can provide a stop to increase the bite force and the locking force. In addition, the first auxiliary tooth 14 , the second auxiliary tooth 15 , and the third auxiliary tooth 16 that are not connected can reduce the resistance and improve the bite force. The arrangement of the teeth 17 assists in cutting, making the modified screw easier to lock into the article 30.

10‧‧‧桿體
11‧‧‧尖部
12‧‧‧螺紋部
13‧‧‧排屑槽
14‧‧‧第一輔助牙
15‧‧‧第二輔助牙
16‧‧‧第三輔助牙
17‧‧‧齒部
20‧‧‧頭部
21‧‧‧平面
22‧‧‧作業孔
23‧‧‧切削凸部
231‧‧‧切削刃
232‧‧‧迎面
233‧‧‧背面
24‧‧‧導引面
25‧‧‧止擋面
26‧‧‧容置凹部
27‧‧‧輔助面
28‧‧‧輔助切削肋
30‧‧‧物件10‧‧‧ rod body
11‧‧‧ tip
12‧‧‧Threading Department
13‧‧‧chip flute
14‧‧‧First auxiliary tooth
15‧‧‧Second auxiliary teeth
16‧‧‧ Third auxiliary tooth
17‧‧‧ teeth
20‧‧‧ head
21‧‧‧ plane
22‧‧‧Working holes
23‧‧‧Cutting convex
231‧‧‧ cutting edge
232‧‧‧ Welcome
233‧‧‧ back
24‧‧‧ Guide surface
25‧‧‧ stop surface
26‧‧‧ accommodating recess
27‧‧‧Auxiliary surface
28‧‧‧Auxiliary cutting ribs
30‧‧‧ objects

圖1：為本創作改良型螺絲之一較佳實施例之一立體外觀示意圖。圖2：為本創作改良型螺絲之一較佳實施例之另一立體外觀示意圖。圖3：為本創作改良型螺絲之一較佳實施例之側視平面示意圖。圖4：為圖3的A-A割面線的剖面示意圖。圖5：為本創作改良型螺絲之一較佳實施例之俯視平面示意圖。圖6：為本創作改良型螺絲之一較佳實施例之使用狀態示意圖。Figure 1 is a perspective view showing one of the preferred embodiments of the modified screw of the present invention. Fig. 2 is another perspective view of a preferred embodiment of a modified screw of the present invention. Fig. 3 is a side plan view showing a preferred embodiment of the modified screw of the present invention. Figure 4 is a schematic cross-sectional view of the A-A cut line of Figure 3. Fig. 5 is a top plan view showing a preferred embodiment of the modified screw of the present invention. Fig. 6 is a schematic view showing the state of use of a preferred embodiment of the modified screw of the present invention.

10‧‧‧桿體 10‧‧‧ rod body

11‧‧‧尖部 11‧‧‧ tip

12‧‧‧螺紋部 12‧‧‧Threading Department

13‧‧‧排屑槽 13‧‧‧chip flute

14‧‧‧第一輔助牙 14‧‧‧First auxiliary tooth

16‧‧‧第三輔助牙 16‧‧‧ Third auxiliary tooth

17‧‧‧齒部 17‧‧‧ teeth

20‧‧‧頭部 20‧‧‧ head

21‧‧‧平面 21‧‧‧ plane

23‧‧‧切削凸部 23‧‧‧Cutting convex

231‧‧‧切削刃 231‧‧‧ cutting edge

232‧‧‧迎面 232‧‧‧ Welcome

233‧‧‧背面 233‧‧‧ back

24‧‧‧導引面 24‧‧‧ Guide surface

25‧‧‧止擋面 25‧‧‧ stop surface

26‧‧‧容置凹部 26‧‧‧ accommodating recess

27‧‧‧輔助面 27‧‧‧Auxiliary surface

28‧‧‧輔助切削肋 28‧‧‧Auxiliary cutting ribs

Claims

An improved type of screw includes a rod body having a tip formed at one end thereof, and a head portion is formed at one end of the rod body, and an outer surface of the tip portion is provided with a thread portion extending to the rod body. And an outer side surface of the tip portion is provided with a chip groove, the head portion forming a plane on an end opposite to the rod body, wherein the working surface is provided with a working hole, the outer side surface of the head portion forming a cone surface, the cone surface is located Between the plane and the rod body, a plurality of spaced apart cutting protrusions are disposed on the tapered surface, each cutting protrusion has a cutting edge, and an inward surface and a back surface are respectively formed on two sides of the cutting edge, the head Extending a guiding surface from the front surface of the cutting convex portion, and the head portion extends from the back surface of the cutting convex portion, a stopping surface extending and connected to the adjacent guiding surface, and at the head portion An accommodating recess between the adjacent cutting projections is formed on the tapered surface.

The modified screw of claim 1, wherein an outer surface of the head is provided with an auxiliary surface, the auxiliary surface is connected to the tapered surface and the rod body, and the auxiliary surface is provided with a plurality of auxiliary cutting ribs arranged at intervals. The auxiliary cutting ribs are extended to the corresponding cutting projections.

The modified screw of claim 1, wherein the modified screw forms a first auxiliary tooth, a second auxiliary tooth and a third auxiliary tooth on an outer side surface of the rod body, and the second auxiliary tooth The bottom end is located below the top end of the first auxiliary tooth, and the top end of the second auxiliary tooth is located above the bottom end of the third auxiliary tooth.

The modified screw of claim 2, wherein the modified screw forms a first auxiliary tooth, a second auxiliary tooth and a third auxiliary tooth on an outer side surface of the rod body, and the second auxiliary tooth The bottom end is located below the top end of the first auxiliary tooth, and the top end of the second auxiliary tooth is located above the bottom end of the third auxiliary tooth.

The improved screw of claim 3, wherein the first auxiliary teeth, the second auxiliary teeth and the third auxiliary teeth are angularly distributed with respect to a central axis of the shaft.

The improved screw of claim 4, wherein the first auxiliary teeth, the second auxiliary teeth and the third auxiliary teeth are angularly distributed with respect to a central axis of the shaft.

The improved type of screw according to any one of claims 3 to 6, wherein the first auxiliary tooth, the second auxiliary tooth, and the third auxiliary tooth all intersect the thread portion, the first auxiliary tooth and the second auxiliary The helical directions of the teeth and the third auxiliary teeth are opposite to the helical direction of the threaded portion.

The modified screw according to any one of claims 3 to 6, wherein the spiral directions of the first auxiliary teeth, the second auxiliary teeth and the third auxiliary teeth are the same as the spiral direction of the thread portion.

The modified screw according to any one of claims 1 to 6, wherein the modified screw is provided with a plurality of spaced-apart teeth on the threaded portion.

The modified screw of claim 7, wherein the modified screw is provided with a plurality of spaced-apart teeth on the threaded portion.

The modified screw of claim 8, wherein the modified screw is provided with a plurality of spaced-apart teeth on the threaded portion.