TW201738466A - Fastener capable of stabilizing the screwing effect - Google Patents

Abstract

A fastener capable of stabilizing the screwing effect includes a head, a shank, a plurality of first threads, a plurality of second threads, and a plurality of third threads. The first threads shaped into complete threads spiral from a surface of a tip toward the head. The second threads shaped into non-complete circular threads have a plurality of connective cutting slots and a ridge formed between any two of the abutting cutting slots. Further, a central axis is defined between each ridge and a center of the shank. An angle between a first cutting side and the central axis can be set between 60 to 80 degrees and an angle between a second cutting side and the central axis can be set between 0 to 40 degrees. Hence, the first threads are able to prevent the fastener from being inclined in time of screwing. The cutting slots of the second threads and the ridges formed toward the same direction with a screwing-in direction of the fastener are able to cut and expel the debris effectively and attain the similar screwing speed between fasteners which are manufactured from the same design to achieve the overall stability of screwing into the an object.

Description

具穩定鎖合效果之螺絲Screw with stable locking effect

本發明是有關於一種螺絲，特別是指一種具穩定鎖合效果之螺絲。The invention relates to a screw, in particular to a screw with a stable locking effect.

參閱圖1，習知螺絲1包含有一螺頭11，一由該螺絲1一端向外延伸之桿體12，以及一環設於該桿體12上之螺牙13，以及一設於該桿體12末端之割槽14；其中，該桿體12末端形成有一尖錐面121，且該溝槽14係由該尖錐面121往該螺頭11方向延伸；使用時，利用該尖錐面121抵觸於一物件上，以利用該螺牙13鑽切過程逐漸帶動該桿體12旋入物件內，而鑽切過程所產生之切屑亦可排入該割溝內，並且該割溝亦具有斬斷部分切屑之功能，進而使得鎖合速度更加提升與省力。Referring to FIG. 1 , the conventional screw 1 includes a screw head 11 , a rod body 12 extending outward from one end of the screw 1 , and a thread 13 disposed on the rod body 12 , and a rod 12 disposed on the rod body 12 . a cutting groove 14 at the end; wherein the end of the rod body 12 is formed with a tapered surface 121, and the groove 14 extends from the tapered surface 121 toward the screw head 11; in use, the tapered surface 121 is used to resist On an object, the rod body 12 is gradually driven into the object by the drilling and cutting process, and the chips generated by the drilling process can also be discharged into the cutting groove, and the cutting groove also has a cutting edge. Part of the function of the chip, which makes the locking speed more convenient and labor-saving.

然，實際使用後發現，習知螺絲具有下列缺失產生，茲詳述如下：However, after actual use, it is found that the conventional screws have the following defects, which are detailed as follows:

由於該割溝14主要是於該桿體12、螺牙13、尖錐面121皆成型後，再進行加工而成，除再增加一道的加工程序，會增加生產成本外，再者，因該螺牙13是螺旋環設於該尖錐面121與桿體12上，故在加工過程中，無法精準使該割槽14皆設置在相同位置之螺牙13上，導致鎖設過程中，使得該每一螺絲1於鎖設過程中，將產生不同切削與排屑能力，而使得鎖設過程所產生之扭力值與速度有落差增加（如表一），而造成對物件整體鎖設之穩定性鎖設不穩定之情事。Since the cutting groove 14 is mainly formed after the rod body 12, the thread 13 and the tapered surface 121 are formed, the machining process is increased, and the production cost is increased, and the production cost is increased. The screw 13 is provided with the spiral ring on the tapered surface 121 and the rod body 12. Therefore, during the processing, the cutting groove 14 cannot be accurately placed on the thread 13 of the same position, resulting in the locking process. Each screw 1 will produce different cutting and chip removing capacities during the locking process, and the torque value and speed generated by the locking process will increase (as shown in Table 1), resulting in stability of the overall locking of the object. Sexual locks are unstable.

表一、以習知螺絲相同規格、相同鎖設條件之進行測試 Table 1 is tested with the same specifications and the same locking conditions as the conventional screws.

其最高與最低扭力值之落差於10.3 KGF-CM，其可證明該螺絲確實鎖設上並不夠穩定。The difference between the highest and lowest torque values is 10.3 KGF-CM, which proves that the screw is indeed locked and not stable enough.

再者，由於該割槽14係設於該桿體12末端，因此，當該尖錐面121與螺牙13帶動該螺絲1進入的過程中，該尖錐面121及靠近末端之螺牙13係受到該割槽14之中斷，使得該螺牙13、桿體12並無法均衡的接觸該物件，導致鎖設過程中該螺絲1容易與該物件鎖設角度偏移，造成該螺絲1鎖設歪斜之情事，實需改善。Moreover, since the cutting groove 14 is disposed at the end of the rod body 12, when the tapered surface 121 and the thread 13 drive the screw 1 into the process, the tapered surface 121 and the thread 13 near the end 13 The screw 13 is interrupted by the slot 14 so that the screw 13 and the rod 12 cannot contact the object in a balanced manner, so that the screw 1 is easily offset from the object during the locking process, thereby causing the screw 1 to be locked. The situation of skewing needs to be improved.

因此，本發明之目的，是在提供一種具穩定鎖合效果之螺絲，其可降低鎖設過程該螺絲歪斜及增加鎖設速度外，同時更能使每一螺絲皆可達到相近之鎖設速度，進而達到對物件整體鎖設之穩定性。Therefore, the object of the present invention is to provide a screw with a stable locking effect, which can reduce the skew of the screw during the locking process and increase the locking speed, and at the same time enable each screw to achieve a similar locking speed. In order to achieve stability of the overall locking of the object.

於是，本發明具穩定鎖合效果之螺絲，其包含有一螺頭，一由該螺頭向外延伸之桿體，以及分別設於該桿體上之第一、第二、第三螺牙；其中，該第一螺牙為完全牙型態且由該尖錐面往該螺頭方向環設；另，第二螺牙上開設有複數相互連接之切槽，以及一形成於該任二切槽間之尖刃，同時該尖刃與桿體中心具有一基準線，且該第一切邊與該基準線之角度介於60~80度間，該第二切邊與該基準線之角度介於0~40度間；是以，透過該第一螺牙為完全牙之設計，以可穩定鎖入物件後，避免螺絲鎖設過程中歪斜之情事外，該第二螺牙上又設置有該切槽以及朝向旋鎖方向設置之尖刃，能於鎖設過程降低鎖設扭力與提升鎖設速度等功效外；至於，該第三螺牙亦呈完全牙之型態，將可增加鎖設穩固力；再者，該螺絲結構設計於製造上，也可以相對降低生產誤差，並使每一螺絲達到相近之鎖設速度，進而達到對物件整體鎖設之穩定性。Therefore, the screw with stable locking effect of the present invention comprises a screw head, a rod body extending outward from the screw head, and first, second, and third threaded teeth respectively disposed on the rod body; Wherein, the first thread is completely toothed and is looped by the tapered surface toward the head; and the second thread is provided with a plurality of slots connected to each other, and one of the two cuts is formed a sharp edge between the slots, wherein the sharp edge has a reference line with the center of the rod, and the angle between the first trim and the reference line is between 60 and 80 degrees, and the angle between the second trim and the reference line Between 0 and 40 degrees; that is, through the design of the first thread as a complete tooth, in order to stably lock the object, to avoid the skew in the screw locking process, the second thread is set again The cutting groove and the sharp edge disposed toward the direction of the twisting can reduce the locking torque and the lifting speed in the locking process; as for the third screw, the shape of the complete tooth will increase. The locking force is set; in addition, the screw structure is designed to be manufactured, and the production error can be relatively reduced, and A lock set screw reaches similarities speed, so as to achieve the stability of the overall object of the lock set.

有關本發明之前述及其他技術內容、特點與功效，在以下配合參考圖式之較佳實施例的詳細說明中，將可清楚的明白。The above and other technical contents, features, and advantages of the present invention will become apparent from the Detailed Description of the <RTIgt;

參閱圖2，本發明第一較佳實施例，具穩定鎖合效果之螺絲3，其包含有一螺頭31，一由該螺頭31向外延伸之桿體32，以及分別設於該桿體32上之第一、第二、第三螺牙33、34、35；其中，該桿體32相反於該螺頭31一端形成有一尖錐面321；另，該第一螺牙33由該尖錐面321往該螺頭31方向環設，且該第一螺牙33為完全牙型態，同時該第一螺牙33環設於該桿體32上之圈數為至少2圈為最佳，而本實施圖中，係以設置2圈為例說明。Referring to FIG. 2, in a first preferred embodiment of the present invention, a screw 3 having a stable locking effect includes a screw head 31, a rod body 32 extending outward from the screw head 31, and a rod body respectively disposed on the rod body a first, second, and third thread 33, 34, 35; wherein the rod 32 is formed with a tapered surface 321 opposite to the end of the screw 31; and the first thread 33 is pointed by the tip The tapered surface 321 is disposed in the direction of the screw head 31, and the first screw 33 is in a completely toothed state, and the number of turns of the first screw 33 on the rod body 32 is at least 2 turns. In the present embodiment, the description is made by taking two turns as an example.

配合參閱圖3，仍續前述，該第二螺牙34設於該第一螺牙33與螺頭31間，且該第二螺牙34上開設有複數相互連接之切槽341，以及一形成於該任二切槽341間之尖刃342，其中，該每一切槽341具有一第一切邊3411，以及一相接該第一切邊3411之第二切邊3412，而前述該尖刃342係形成於該第一切邊3411與另一切槽341之第二切邊3412相接處，同時該尖刃342與桿體中心32α間具有一基準線α，且該第一切邊3411與該基準線α之角度介3411α於60~80度間，該第二切邊3412與該基準線α之角度3412α介於0~40度間，而使該尖刃342係朝向旋入時之方向(如圖3中之箭頭)，同時，該每一尖刃342設置於非同一圓周上a，以使該第二螺牙34整體呈現為非正圓之型態；最後，該第三螺牙35係設該桿體32上且位於該第二螺牙34與螺頭31間，同時該第三螺牙35亦為完全牙之型態。With reference to FIG. 3, the second screw 34 is disposed between the first screw 33 and the screw head 31, and the second screw 34 is provided with a plurality of slots 341 connected to each other, and a forming portion. a sharp edge 342 between the two slits 341, wherein each of the grooves 341 has a first trimming edge 3411, and a second trimming edge 3412 contacting the first trimming edge 3411, and the sharp edge The 342 is formed at the first trimming edge 3411 and the second trimming edge 3412 of the other slit 341, and the sharp edge 342 has a reference line α between the rod center 32α, and the first trimming edge 3411 is The angle α of the reference line α is between 34 and 80 degrees, and the angle between the second edge 3412 and the reference line α is between 40 and 40 degrees, and the sharp edge 342 is oriented in the direction of screwing in. (as shown in FIG. 3), at the same time, each of the sharp edges 342 is disposed on a non-same circumference a such that the second thread 34 is entirely in a non-circular shape; finally, the third thread 35 is disposed on the rod body 32 and located between the second thread 34 and the screw head 31, and the third thread 35 is also in the form of a complete tooth.

參閱圖4、圖5，該螺絲3進行鎖設時，其先將該尖錐面321末端牴觸於欲鎖設之物件4上，而後於該螺頭31下壓有一扭轉力，以使該第一螺牙33於該物件4上鑽鎖出一鎖孔41，同時該第一螺牙33並帶動該螺絲3進入該鎖孔41內，由於該第一螺牙33為一完全牙型態，因此該第一螺牙33可均衡的接觸到該物件4，降低該尖錐面321、桿體32進入物件4過程中產生歪斜之情事，而當鎖設至該第二螺牙34時，由於該第一螺牙33、尖錐面321、桿體32皆已進入該物件4內，故可降低後續鎖設過程中該螺絲3歪斜之情事產生。Referring to FIG. 4 and FIG. 5, when the screw 3 is locked, the end of the tapered surface 321 is first touched on the object 4 to be locked, and then a torsion force is pressed under the screw head 31 to make the screw The first screw 33 drills a locking hole 41 on the object 4, and the first screw 33 drives the screw 3 into the locking hole 41, because the first screw 33 is a complete tooth type. Therefore, the first screw 33 can be in contact with the object 4 in a balanced manner, and the skewing of the tapered surface 321 and the rod 32 into the object 4 is reduced, and when the second screw 34 is locked, Since the first screw 33, the tapered surface 321 and the rod 32 have entered the object 4, the occurrence of the skew of the screw 3 during the subsequent locking process can be reduced.

配合參閱圖6，當該第二螺牙34上設置有切槽341時，於切削過程中，僅有該尖刃342會接觸該鎖孔41，故可有效降低該第二螺牙34與物件4之摩擦力，同時透過該第一切邊3411與該基準線α之角度3411α大於該第二切邊3412與該基準線α之角度3412α，可增加該尖刃342之承受力外，並且使得該尖刃342切削過程所產生之切屑能迅速排入該切槽341內，並接續再受該另一尖刃342將該切屑予以斬斷，將可防止該切屑纏繞於該桿體32或第二螺牙34上，使該螺絲3迅速鎖入，並降低鎖合阻力之功效；最後，該第三螺牙35鎖進該物件後，由於該第三螺牙35為完全牙之設計能增加與物件4之接觸面，有效增加該螺絲3與物件之結合力，促使該螺絲3鎖合後更加之穩定Referring to FIG. 6 , when the second screw 34 is provided with the slit 341 , only the sharp edge 342 contacts the lock hole 41 during the cutting process, so that the second screw 34 and the object can be effectively reduced. The frictional force of 4, while the angle 3411α of the first trimming edge 3411 and the reference line α is greater than the angle 3412α of the second trimming edge 3412 and the reference line α, can increase the bearing capacity of the sharp edge 342, and The chips generated by the cutting process of the sharp edge 342 can be quickly discharged into the slit 341, and then the other sharp edge 342 is cut off by the other sharp edge 342, thereby preventing the chip from being entangled in the rod 32 or the first The second screw 34 allows the screw 3 to be quickly locked in and reduces the effect of the locking resistance; finally, after the third screw 35 is locked into the object, the design of the third screw 35 for the complete tooth can be increased. The contact surface with the object 4 effectively increases the bonding force between the screw 3 and the object, and the screw 3 is more stable after being locked.

再者，由於該第二螺牙上33設有該切槽341之設置，其可於輾牙過程中，直接透搓牙版之設計，一併將該第二螺牙34上予以輾牙成型，因此將可降低每一螺絲3之誤差，促使鎖合過程該每一螺絲3鎖合所產生之扭力值與速度達到相近，進而達到對該物件4整體鎖設之穩定性，如下(表二)實際測試結果。Furthermore, since the second screw 33 is provided with the slit 341, it can directly penetrate the design of the tooth plate during the tooth decay process, and the second screw 34 is formed into a tooth form. Therefore, the error of each screw 3 can be reduced, and the torque value generated by the locking of each screw 3 in the locking process is similar to the speed, thereby achieving the stability of the overall locking of the object 4, as follows (Table 2 ) actual test results.

表二、以本發明螺絲相同規格、相同鎖設條件之進行測試： Table 2: Tested with the same specifications and the same locking conditions of the screw of the invention:

最高與最低扭力值之落差僅有2.8 KGF-CM，其可證明該螺絲1確實鎖設上非常穩定。The difference between the highest and lowest torque values is only 2.8 KGF-CM, which proves that the screw 1 is indeed very stable in locking.

歸納前述，本發明具穩定鎖合效果之螺絲，其藉由該第一螺牙為完全牙型態且由該尖錐面往該螺頭方向環設，該第二螺牙呈現非正圓型態，且該第二螺牙上形成有複數相互連接之切槽，與設於任二切槽間之尖刃，該第三螺牙設於該螺頭與第二螺牙間；是以，透過該第一螺牙可穩定鎖入物件後，避免螺絲鎖設過程中歪斜之情事外，接續該第二螺牙上設置有該切槽以及朝向旋鎖方向設置之尖刃，將可有效斬斷受切屑與排屑等功效外，該第三螺牙可增加鎖設後之結合力，同時透過該第一、第二、第三螺牙之整體設計上，除可有效達到鎖設初期穩固、鎖設中期排屑佳，鎖設後期固定力佳等功效外，同時該等設計於製造上，也能使同一設計生產之螺絲達到相近之鎖設速度，進而達到對物件整體鎖設之穩定性。In summary, the screw with a stable locking effect of the present invention is formed by the first thread being completely dent and surrounded by the tapered surface toward the head, and the second thread is non-circular. a second thread is formed between the screw head and the second thread; After the first thread is stably locked into the object, the skewing of the screw locking process is avoided, and the cutting edge provided on the second thread and the sharp edge disposed toward the twisting direction are effective. In addition to the effects of chipping and chip removal, the third screw can increase the bonding force after the locking, and at the same time, through the overall design of the first, second and third screw teeth, in addition to effectively achieving the initial stability of the locking The lock is designed for medium-term chip removal, and the locking function is good for later fixing. At the same time, the design can also make the screw of the same design achieve the similar locking speed, thus achieving the stability of the overall locking of the object. Sex.

惟以上所述者，僅為說明本發明之較佳實施例而已，當不能以此限定本發明實施之範圍，即大凡依本發明申請專利範圍及發明說明書內容所作之簡單的等效變化與修飾，皆應仍屬本發明專利涵蓋之範圍內。The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the description of the invention. All should remain within the scope of the invention patent.

﹝習知﹞
1‧‧‧螺絲
11‧‧‧螺頭
12‧‧‧桿體
13‧‧‧螺牙
14‧‧‧割尾
121‧‧‧尖錐面
﹝本創作﹞
3‧‧‧螺絲
31‧‧‧螺頭
32‧‧‧桿體
33‧‧‧第一螺牙
34‧‧‧第二螺牙
35‧‧‧第三螺牙
321‧‧‧尖錐面
32α‧‧‧桿體中心
341‧‧‧切槽
342‧‧‧尖刃
α‧‧‧基準線
3411‧‧‧第一切邊
3412‧‧‧第二切邊
3411α‧‧‧第一切邊之角度
3412α‧‧‧第二切邊之角度
4‧‧‧物件
41‧‧‧鎖孔[study]
1‧‧‧ screws
11‧‧‧ screw head
12‧‧‧ rod body
13‧‧‧ thread
14‧‧‧Tail
121‧‧‧spirit surface [this creation]
3‧‧‧ screws
31‧‧‧ screw head
32‧‧‧ rod body
33‧‧‧First thread
34‧‧‧Second thread
35‧‧‧ Third thread
321‧‧‧spirit
32α‧‧‧ Rod Center
341‧‧‧ slotting
342‧‧‧ sharp edge α‧‧‧ baseline
3411‧‧‧First trimming
3412‧‧‧Second trimming
3411α‧‧‧The angle of the first trimming
3412α‧‧‧The angle of the second trimming
4‧‧‧ objects
41‧‧‧Keyhole

圖1 是習知螺絲之示意圖。 圖2是本發明第一較佳實施例之立體圖。 圖3是圖2中Ａ－Ａ位置之剖面圖。 圖4本發明第一較佳實施例之鎖合狀態圖。 圖5是圖4中B－B位置之剖面圖。 圖6是圖4中C－C位置之剖面圖。Figure 1 is a schematic view of a conventional screw. Figure 2 is a perspective view of a first preferred embodiment of the present invention. Figure 3 is a cross-sectional view taken along line A-A of Figure 2; Figure 4 is a view showing the lock state of the first preferred embodiment of the present invention. Figure 5 is a cross-sectional view taken along line B-B of Figure 4; Figure 6 is a cross-sectional view taken along line C-C of Figure 4;

3‧‧‧螺絲 3‧‧‧ screws

31‧‧‧螺頭 31‧‧‧ screw head

32‧‧‧桿體 32‧‧‧ rod body

33‧‧‧第一螺牙 33‧‧‧First thread

34‧‧‧第二螺牙 34‧‧‧Second thread

35‧‧‧第三螺牙 35‧‧‧ Third thread

321‧‧‧尖錐面 321‧‧‧spirit

32 α‧‧‧桿體中心 32 α‧‧‧ Rod Center

341‧‧‧切槽 341‧‧‧ slotting

342‧‧‧尖刃 342‧‧‧ sharp edge

3411‧‧‧第一切邊 3411‧‧‧First trimming

3412‧‧‧第二切邊 3412‧‧‧Second trimming

Claims (2)

一種具穩定鎖合效果之螺絲，其包含有： 一螺頭； 一桿體，其由該螺頭向外延伸，且相反於該螺頭一端形成有一尖錐面；
第一螺牙，其設於該桿體上且由該尖錐面往該螺頭方向環設，且該第一螺牙為完全牙型態；
第二螺牙，其設於該第一螺牙與螺頭間，且該第二螺牙上開設有複數相互連接之切槽，以及一形成於該任二切槽間之尖刃，其中，該每一切槽具有一第一切邊，以及一相接該第一切邊之第二切邊，而前述該尖刃係形成於該第一切邊與另一切槽之第二切邊相接處，同時該尖刃與桿體中心具有一基準線，且該第一切邊與該基準線之角度介於60~80度間，該第二切邊與該基準線之角度介於0~40度間，同時該每一尖刃並非在同一圓周上，以使該第二螺牙呈現非正圓型態；及 第三螺牙，其設於該桿體上且位於該第二螺牙與螺頭間，同時該第三螺牙亦為完全牙之型態。A screw with a stable locking effect, comprising: a screw head; a rod body extending outward from the screw head, and a tapered surface formed at one end opposite to the screw head;
a first thread disposed on the rod body and being looped by the tapered surface toward the screw head, and the first thread is completely toothed;
a second thread disposed between the first thread and the screw head, wherein the second thread is provided with a plurality of mutually connected slots, and a sharp edge formed between the two slots, wherein Each of the grooves has a first trimming edge and a second trimming edge contacting the first trimming edge, and the sharp edge is formed by the first trimming edge contacting the second trimming edge of the other slit Wherein, the sharp edge has a reference line with the center of the rod body, and the angle between the first cutting edge and the reference line is between 60 and 80 degrees, and the angle between the second cutting edge and the reference line is between 0 and 40 degrees, at the same time, each of the sharp edges is not on the same circumference, so that the second thread presents a non-circular shape; and a third thread is disposed on the rod and located at the second thread Between the screw head and the third thread, the third thread is also in the form of a complete tooth. 根據申請專利範圍第1項所述具穩定鎖合效果之螺絲，其中，該第一螺牙環設於該桿體之圈數為至少2圈。The screw having a stable locking effect according to the first aspect of the patent application, wherein the first thread ring is disposed in the rod body at least 2 turns.