TW201932724A - Self-drilling screw - Google Patents
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- TW201932724A TW201932724A TW107101464A TW107101464A TW201932724A TW 201932724 A TW201932724 A TW 201932724A TW 107101464 A TW107101464 A TW 107101464A TW 107101464 A TW107101464 A TW 107101464A TW 201932724 A TW201932724 A TW 201932724A
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Description
本發明關於一種螺絲，尤指一種適用於將複合板與金屬板牢固結合的鑽尾螺絲。The invention relates to a screw, in particular to a self-drilling screw suitable for firmly bonding a composite plate to a metal plate.
鑽尾螺絲廣泛使用於金屬板的鎖合。圖1顯示一種習用的鑽尾螺絲10，其包含一桿體12及設在桿體12上的螺紋14。桿體12的一端形成鑽尾部16且另一端形成頭部18。鑽尾部16包含一尖端20以及自尖端20朝頭部18延伸的二切刃部22。桿體12上設有數排屑槽24及一V型槽26。當使用鑽尾螺絲10旋入一金屬板時，係藉由切刃部22先鑽切金屬板，接著，由桿體12上的螺紋14進行切削以使桿體12旋入金屬板內。排屑槽24可用來將切削金屬板產生之切屑排出，而V型槽26用來使螺紋14的牙頂形成尖銳的切削刃28以提高螺紋14的切削能力。然而，圖1的鑽尾螺絲10只適用於金屬板材的鑽孔與結合，並不適用於鎖入複合板(例如由木材、硬質的南方松、或是由塑膠樹脂與木屑摻合加壓製成的板材)，因為螺紋14與複合板之間的接觸面積過大，造成螺紋14在旋入過程中所遭遇之摩擦阻力提高，在操作上費力且複合板易因擠壓而產生龜裂。再者，鑽尾螺絲10的螺紋14只能提供順向旋入的作用，不具有抗拉拔力與防逆向旋退的效果。Drilling screws are widely used in the locking of metal plates. 1 shows a conventional self-drilling screw 10 that includes a shaft 12 and threads 14 disposed on the shaft 12. One end of the shaft 12 forms a drill tail 16 and the other end forms a head 18. The drill tail 16 includes a tip 20 and a second cutting edge 22 extending from the tip 20 toward the head 18. The rod body 12 is provided with a plurality of flutes 24 and a V-shaped groove 26. When the use of the self-drilling screw 10 is screwed into a metal plate, the metal plate is first drilled by the cutting edge portion 22, and then the cutting is performed by the thread 14 on the rod 12 to screw the rod 12 into the metal plate. The flutes 24 can be used to discharge chips from the cutting metal sheet, and the V-grooves 26 are used to form the sharp crests of the crests of the threads 14 to improve the cutting ability of the threads 14. However, the self-drilling screw 10 of Figure 1 is only suitable for the drilling and bonding of sheet metal, and is not suitable for locking into a composite board (for example, by wood, hard southern pine, or by plastic resin and wood chips. Since the contact area between the thread 14 and the composite plate is too large, the frictional resistance encountered by the thread 14 during the screwing process is increased, which is laborious and the composite plate is liable to be cracked due to the pressing. Moreover, the thread 14 of the self-drilling screw 10 can only provide a forward screwing effect, and has no effect of pulling force and anti-reverse rotation.
圖2顯示另一種習用的鑽尾螺絲30，其適用於將上層為複合板(例如三合板或由硬質南方松製成的板材)且下層為金屬板的被鎖合物結合。鑽尾螺絲30包含一桿體32及設在桿體32上的螺紋34。桿體32的一端形成鑽尾部36且另一端形成一頭部38。鑽尾部36包含一尖端40以及自尖端40朝頭部38延伸的二切刃部42。鑽尾部36的上端設有二翅片44。當使用鑽尾螺絲30對複合板與金屬板進行鎖合作業時，鑽尾部36係先鑽入位在上層的複合板，再由翅片44擴大複合板的孔洞，使得位在鑽尾螺絲30後段的螺紋34能更容易鑽入複合板內。當鑽尾部36的二切刃部42旋入金屬板後，二翅片44會與金屬板摩擦而脫落。接著，桿體32上的螺紋34就可旋入金屬板而將複合板與金屬板鎖合。藉由翅片44先對上層的複合板進行擴孔，雖然可使鑽尾螺絲30能夠較順利地旋入複合板，進而鎖至下層的金屬板。然而，當翅片44與金屬板摩擦時，將需要加大旋入扭力來使翅片44從鑽尾部36脫離，操作上費力；此外，有時可能發生翅片44不能從鑽尾部36脫離的情狀，造成桿體32上的螺紋34無法旋入金屬板，或者，有時可能發生翅片44在金屬板上鑽出一個過大孔洞的情況，造成桿體32上的螺紋34無法與金屬板牢固地鎖合。Figure 2 shows another conventional self-drilling screw 30 that is suitable for joining a lock compound having an upper layer of a composite sheet (e.g., a plywood or a sheet made of hard southern pine) and a lower layer of a metal sheet. The self-drilling screw 30 includes a rod 32 and a thread 34 disposed on the rod 32. One end of the rod 32 forms a drill tail 36 and the other end forms a head 38. The drill tail 36 includes a tip 40 and a second cutting edge 42 extending from the tip 40 toward the head 38. The upper end of the drill tail 36 is provided with two fins 44. When the composite plate and the metal plate are locked and engaged by using the self-drilling screw 30, the drill tail portion 36 is first drilled into the composite plate at the upper layer, and then the hole of the composite plate is enlarged by the fins 44 so as to be positioned at the self-drilling screw 30. The thread 34 of the rear section can be more easily drilled into the composite panel. When the two cutting edge portions 42 of the drill tail portion 36 are screwed into the metal plate, the two fins 44 rub against the metal plate and fall off. Next, the threads 34 on the shaft 32 can be screwed into the metal plate to lock the composite plate to the metal plate. The upper composite plate is first reamed by the fins 44, so that the self-drilling screw 30 can be smoothly screwed into the composite plate and locked to the lower metal plate. However, when the fins 44 are rubbed against the metal plate, it will be necessary to increase the screwing torque to disengage the fins 44 from the drill tail portion 36, which is laborious to operate; in addition, it may sometimes occur that the fins 44 cannot be detached from the drill tail portion 36. In this case, the thread 34 on the rod 32 cannot be screwed into the metal plate, or sometimes the fin 44 may be drilled into an excessive hole in the metal plate, so that the thread 34 on the rod 32 cannot be firmly fixed to the metal plate. Ground lock.
緣此，本發明之主要目的在提供一種鑽尾螺絲，該鑽尾螺絲適用於將上層為複合板且下層為金屬板的被鎖合物結合，且該鑽尾螺絲不需要在鑽尾部上設置翅片就能順利地旋入複合板內，並具有旋入速度高且操作上省力的效果，同時能確保該鑽尾螺絲與被鎖合物件間的結合力。Accordingly, the main object of the present invention is to provide a self-drilling screw which is suitable for combining a lock compound having an upper layer as a composite plate and a lower layer as a metal plate, and the drill screw does not need to be disposed on the drill tail portion. The fins can be smoothly screwed into the composite panel, and have a high screwing speed and an effortless operation, and at the same time ensure the bonding force between the drill screw and the interlocked component.
本發明之鑽尾螺絲包含一桿體及一第一螺紋，該桿體包含在一縱向軸線分隔的一鑽尾部與一頭部，該桿體更包含位在該鑽尾部與該頭部之間的一直桿部。該第一螺紋係呈螺旋狀地繞在該直桿部上且包含數個螺牙，各螺牙具有面向該鑽尾部的一下切削面、背向該鑽尾部的一上切削面、及連接在下切削面與上切削面之間的切削線，該第一螺紋的至少部分螺牙上個別設有沿著該直桿部之周圍方向分隔的3個至8個凹部，該凹部係自該切削線沿著該直桿部的徑向向內凹入且在該周圍方向具有一凹部長度。相鄰二凹部之間形成一牙部，該牙部在該周圍方向具有一牙部長度，該牙部長度為該凹部長度的25%至200%。The drill screw of the present invention comprises a rod body and a first thread, the rod body comprising a drill tail portion and a head portion separated by a longitudinal axis, the rod body further comprising a position between the drill tail portion and the head portion The pole has always been. The first thread is spirally wound around the straight rod portion and includes a plurality of threaded teeth, each thread having a lower cutting surface facing the tail portion, an upper cutting surface facing away from the tail portion, and connecting a cutting line between the cutting surface and the upper cutting surface, wherein at least part of the thread of the first thread is individually provided with three to eight recesses spaced along a circumferential direction of the straight rod portion, the recess is from the cutting line It is recessed inward in the radial direction of the straight portion and has a recess length in the peripheral direction. A tooth portion is formed between the adjacent two concave portions, and the tooth portion has a tooth length in the circumferential direction, and the tooth portion has a length of 25% to 200% of the length of the concave portion.
在一較佳實施例中，該牙部長度為該凹部長度的50%至150%。該凹部在該徑向具有一最大凹入深度，該凹入深度為該螺牙之牙高的10%至60%，最好，該凹入深度為該螺牙之牙高的20%至50%。再者，該凹部具有兩側邊，各側邊與鄰近的牙部交接形成一圓弧角。In a preferred embodiment, the length of the tooth is between 50% and 150% of the length of the recess. The recess has a maximum concave depth in the radial direction, the concave depth being 10% to 60% of the tooth height of the screw, and preferably, the concave depth is 20% to 50% of the tooth height of the screw %. Furthermore, the recess has two side edges, each of which intersects with an adjacent tooth to form an arcuate corner.
在一實施例中，該鑽尾螺絲更包含一第二螺紋。該直桿部包含鄰近該鑽尾部的一下段與鄰近該頭部的上段，該第一螺紋設在該直桿部的下段，該第二螺紋設在該直桿部的上段，該第二螺紋之向上旋繞方向與該第一螺紋之向上旋繞方向相反，該第一螺紋外徑小於該第二螺紋外徑。In an embodiment, the drill screw further includes a second thread. The straight rod portion includes a lower portion adjacent to the drill tail portion and an upper portion adjacent to the head portion, the first thread is disposed at a lower portion of the straight rod portion, and the second thread is disposed at an upper portion of the straight rod portion, the second thread The upward winding direction is opposite to the upward winding direction of the first thread, and the first thread outer diameter is smaller than the second thread outer diameter.
關於本發明之其他目的、優點及特徵，將可由以下較佳實施例的詳細說明並參照所附圖式來了解。Other objects, advantages and features of the present invention will become apparent from
現將僅為例子但非用以限制的具體實施例，並參照所附圖式就本發明之較佳結構內容說明如下：The preferred embodiments of the present invention will now be described by way of example only, and not by way of limitation,
參閱圖3至圖6，顯示依據本發明第一實施例的鑽尾螺絲50，其特別適用於結合上層為複合板且下層為金屬板的被鎖合物。鑽尾螺絲50包括一桿體52，桿體52包含在一縱向軸線（X）分隔的鑽尾部54及頭部56。鑽尾部54具有一尖端58以及自尖端58朝頭部56延伸的二切刃部60。頭部56的上表面具有一承孔62用以供起子工具（未圖示）***。桿體52在鑽尾部54與頭部60之間具有一直桿部64，直桿部64包含鄰近鑽尾部54的下段66與鄰近頭部56的上段68。在本實施例中，直桿部64具有圓形的橫向斷面。在可行的實施例中，直桿部64具有非圓形的橫向斷面。Referring to Figures 3 through 6, there is shown a self-drilling screw 50 in accordance with a first embodiment of the present invention which is particularly suitable for use with a bonded compound having an upper layer as a composite sheet and a lower layer being a metal sheet. The self-drilling screw 50 includes a shaft 52 that includes a drill tail 54 and a head 56 that are separated by a longitudinal axis (X). The drill tail 54 has a tip 58 and a second cutting edge 60 extending from the tip 58 toward the head 56. The upper surface of the head 56 has a socket 62 for insertion of a driver (not shown). The shank 52 has a straight shank 64 between the drill tail 54 and the head 60, and the straight shank 64 includes a lower section 66 adjacent the drill tail 54 and an upper section 68 adjacent the head 56. In the present embodiment, the straight stem portion 64 has a circular cross section. In a possible embodiment, the straight stem portion 64 has a non-circular cross-section.
鑽尾螺絲50更包含第一螺紋70及第二螺紋72，第一螺紋70係呈螺旋狀地設在直桿部64的下段66且包含複數螺牙74，相鄰二螺牙74之間具有一螺距(P)。各螺牙74具有位在鎖入側(即面向鑽尾部54)的下切削面76、位在退出側(背向鑽尾部54)的上切削面78及連接在下切削面76與上切削面78之間的切削線80。第二螺紋72係呈螺旋狀地設在直桿部64的上段68，第二螺紋72之向上旋繞方向與第一螺紋70之向上旋繞方向相反，且第二螺紋72之螺距大於第一螺紋70之螺距(P)。如圖4所示，第一螺紋70之外徑(d1)小於第二螺紋72之外徑(d2)，但大於鑽尾部54的外徑(d3)。The self-drilling screw 50 further includes a first thread 70 and a second thread 72. The first thread 70 is spirally disposed in the lower section 66 of the straight rod portion 64 and includes a plurality of thread 74, and has a thread between adjacent two threads 74. A pitch (P). Each of the threads 74 has a lower cutting surface 76 on the locking side (ie, facing the drill tail 54), an upper cutting surface 78 on the exit side (backward drilling end 54), and a lower cutting surface 76 and an upper cutting surface 78. Between the cutting line 80. The second thread 72 is spirally disposed in the upper portion 68 of the straight rod portion 64. The upwardly winding direction of the second thread 72 is opposite to the upward winding direction of the first thread 70, and the pitch of the second thread 72 is greater than the first thread 70. Pitch (P). As shown in FIG. 4, the outer diameter (d1) of the first thread 70 is smaller than the outer diameter (d2) of the second thread 72, but larger than the outer diameter (d3) of the drill tail portion 54.
在第一螺紋70的至少部分螺牙74上個別設有沿著直桿部64之周圍方向分隔的3個至8個凹部82，且在相鄰二凹部之間形成一包含切削線80的牙部84。在本實施例中，係在第一螺紋70的各螺牙74上設有沿著直桿部64之周圍方向等角度分隔的5個凹部82以及5個牙部84（見圖6）。各螺牙74上的凹部82係自切削線80沿著直桿部64的徑向向內凹入（見圖4a與圖4b）。凹部82的中央在該徑向具有一最大的凹入深度(D)，且凹部82的二弧狀側邊86與鄰近的牙部84交接形成一圓弧角87（見圖6）。在本實施例中，該凹入深度(D)略小於各螺牙74的一半牙高(H)，較好，該凹入深度(D)為螺牙74之牙高(H)的10%至60%，最好，該凹入深度(D)為螺牙74之牙高(H)的20%至50%，以確保各螺牙74具有足夠的旋切強度，再者，淺且寬的凹部82可以讓切削被鎖合物所產生之切屑盡速往上移動而排出。各凹部82在該周圍方向具有一凹部長度(L1)，各牙部84在該周圍方向具有一牙部長度(L2)，牙部長度(L2)為凹部長度(L1)的25%至200%；牙部長度(L2)較好為凹部長度(L1)的50%至150%；在一更佳實施例中，牙部長度(L2)為凹部長度(L1)的60%至120%。據此，可有效降低第一螺紋70與被鎖合物的接觸面積，使得鑽尾螺絲50能順利旋入被鎖合物，同時可確保鑽尾螺絲50與被鎖合物之間的結合力。此外，螺牙74上的凹部82與牙部84相對於該縱向軸線（X）係分別呈錯開配置（見圖4）呈錯開配置。錯開的牙部84能提高第一螺紋70在旋入被鎖合物後的結合力。Three to eight recesses 82 spaced apart along the circumferential direction of the straight rod portion 64 are individually provided on at least a portion of the thread 74 of the first thread 70, and a tooth including the cutting line 80 is formed between the adjacent two recess portions. Section 84. In the present embodiment, each of the threads 74 of the first thread 70 is provided with five recesses 82 and five teeth 84 (see FIG. 6) which are equally spaced along the circumferential direction of the straight rod portion 64. The recess 82 on each thread 74 is recessed inwardly from the cutting line 80 along the radial direction of the straight stem portion 64 (see Figures 4a and 4b). The center of the recess 82 has a maximum concave depth (D) in the radial direction, and the two arcuate sides 86 of the recess 82 intersect the adjacent teeth 84 to form a circular arc angle 87 (see Fig. 6). In the present embodiment, the recessed depth (D) is slightly smaller than the half tooth height (H) of each of the screws 74. Preferably, the recessed depth (D) is 10% of the tooth height (H) of the thread 74. Up to 60%, preferably, the recess depth (D) is 20% to 50% of the tooth height (H) of the thread 74 to ensure that each thread 74 has sufficient rotational strength, and further, shallow and wide The recess 82 allows the cutting of the chips generated by the lock compound to move upward as quickly as possible. Each of the recesses 82 has a recess length (L1) in the peripheral direction, and each of the teeth 84 has a tooth length (L2) in the peripheral direction, and the tooth length (L2) is 25% to 200% of the recess length (L1). The length of the teeth (L2) is preferably from 50% to 150% of the length of the recess (L1); in a more preferred embodiment, the length of the teeth (L2) is from 60% to 120% of the length (L1) of the recess. According to this, the contact area of the first thread 70 and the lock compound can be effectively reduced, so that the self-drilling screw 50 can be smoothly screwed into the lock compound, and the bonding force between the drill tail screw 50 and the lock compound can be ensured. . In addition, the recess 82 on the thread 74 and the tooth portion 84 are staggered with respect to the longitudinal axis (X), respectively (see FIG. 4). The staggered teeth 84 can increase the bonding force of the first thread 70 after being screwed into the lock compound.
圖7與圖8顯示使用本發明的鑽尾螺絲50對複合板88與金屬板90進行鎖合作業。首先，利用手工具或電動工具（未圖示）***頭部56的承孔62以轉動鑽尾螺絲50，使得鑽尾部54先鑽入位在上層的複合板88，接著，第一螺紋70會旋入複合板88內。在第一螺紋70旋入複合板88的擴孔過程中(利用牙部84與複合板88接觸)，藉由凹部82與牙部84的比例設計，可降低螺牙74在擴孔過程的摩擦阻力，使得鑽尾部54後續鑽入金屬板90的阻力能有效降低，進而提高整體旋入速度。同時，藉由凹部82的凹部長度(L1)與形狀設計，切削複合板88產生的廢屑可沿著凹部82的空間排出，以減少殘屑排出時的阻力，使得鑽尾螺絲50本身不會斷裂且複合板88不會破裂。再者，當直桿部64的上段68旋入複合板88內時，第二螺紋72的旋入可產生擴孔作用，使得直桿部64的下段66能順利地旋入金屬板90中且使得直桿部64的上段68及頭部56可完全且密實地埋入複合板88內，達成牢固連接複合板88與金屬板90之目的。此外，藉由桿體52的第二螺紋72與第一螺紋70為反向旋繞設計，可使鑽尾螺絲50具有抗拉拔力與防逆向旋退的效果。Figures 7 and 8 show the use of the drill tail screw 50 of the present invention to lock the composite panel 88 to the metal panel 90. First, a hand tool or a power tool (not shown) is inserted into the bearing hole 62 of the head 56 to rotate the self-drilling screw 50 so that the drill tail 54 is first drilled into the upper composite plate 88, and then the first thread 70 will Screw into the composite panel 88. During the reaming of the first thread 70 into the composite plate 88 (using the tooth portion 84 to contact the composite plate 88), the ratio of the recess 82 to the tooth portion 84 reduces the friction of the thread 74 during the reaming process. The resistance causes the resistance of the drill tail 54 to be subsequently drilled into the metal plate 90 to be effectively reduced, thereby increasing the overall screwing speed. At the same time, by the recess length (L1) and shape design of the recess 82, the waste generated by the cutting composite plate 88 can be discharged along the space of the recess 82 to reduce the resistance when the debris is discharged, so that the self-drilling screw 50 itself does not The fracture and the composite panel 88 do not break. Moreover, when the upper portion 68 of the straight rod portion 64 is screwed into the composite panel 88, the screwing of the second thread 72 can create a reaming effect so that the lower portion 66 of the straight rod portion 64 can be smoothly screwed into the metal sheet 90 and The upper portion 68 and the head portion 56 of the straight rod portion 64 can be completely and densely embedded in the composite panel 88 for the purpose of firmly connecting the composite panel 88 and the metal panel 90. In addition, by the reverse rotation design of the second thread 72 of the rod 52 and the first thread 70, the self-drilling screw 50 can have the effect of resisting pull-out force and anti-reverse rotation.
依據本發明的鑽尾螺絲，其第一螺紋70的設計特點不是在於旋入被鎖合物的切削能力(鑽尾部54已具有足夠的切削能力)，而是在於避免第一螺紋70鎖入被鎖合物時產生過大的摩擦力而降低旋入速度，進而可降低鑽尾螺絲50旋入金屬板90的摩擦阻力，使得旋入速度有效提高，讓鑽尾部54能更有效地提高攻克金屬板(例如鐵板、鋁板等)的效率。再者，若牙部長度(L2)大於凹部長度(L1)的200%或者若各螺牙74上的凹部82小於3個時，第一螺紋70與被鎖合物的接觸面積將會過大，造成鑽尾螺絲50不能順利地旋入被鎖合物。另一方面，若牙部長度(L2)小於凹部長度(L1)的25%或是若凹部82大於8個時，第一螺紋70與被鎖合物的接觸面積將會過小，造成鑽尾螺絲50與被鎖合物的結合力不足。在一較佳實施例中，各螺牙74上設有4至6個凹部82。According to the drill tail screw of the present invention, the first thread 70 is not designed to be screwed into the cutting ability of the lock compound (the drill tail 54 has sufficient cutting ability), but rather to prevent the first thread 70 from being locked in. When the lock compound is combined, excessive friction is generated to reduce the screwing speed, thereby reducing the frictional resistance of the drill screw 50 screwed into the metal plate 90, so that the screwing speed is effectively improved, and the drill tail portion 54 can more effectively improve the tapping metal plate. Efficiency (eg iron plate, aluminum plate, etc.). Furthermore, if the length of the teeth (L2) is greater than 200% of the length (L1) of the recess or if the number of the recesses 82 on each of the threads 74 is less than three, the contact area of the first thread 70 with the lock compound will be too large. The drill tail screw 50 is not smoothly screwed into the lock compound. On the other hand, if the length of the tooth (L2) is less than 25% of the length (L1) of the recess or if the recess 82 is larger than 8, the contact area of the first thread 70 with the lock compound will be too small, resulting in a self-drilling screw The binding strength of 50 to the blocked compound is insufficient. In a preferred embodiment, each of the threads 74 is provided with 4 to 6 recesses 82.
圖9與圖10顯示本發明第二實施例的鑽尾螺絲50，在此實施例中，桿體52上只設有第一螺紋70，第一螺紋70係呈螺旋狀地設在直桿部64的下段66與上段68，此實施例的鑽尾螺絲50適用在較薄的複合板88，而第一實施例鑽尾螺絲50可適用於較厚或堅硬的複合板88。再者，在本實施例中，係在第一螺紋70的各螺牙74上設有沿著直桿部64之周圍方向等角度分隔的3個凹部82以及3個牙部84，凹部長度(L1)略大於牙部長度(L2)。9 and 10 show a self-drilling screw 50 according to a second embodiment of the present invention. In this embodiment, only the first thread 70 is provided on the rod body 52, and the first thread 70 is spirally disposed on the straight rod portion. The lower section 66 and the upper section 68 of the 64, the self-drilling screw 50 of this embodiment is suitable for use with a thinner composite panel 88, while the first embodiment of the self-drilling screw 50 can be adapted for a thicker or stiff composite panel 88. Further, in the present embodiment, each of the threads 74 of the first thread 70 is provided with three recesses 82 and three teeth 84 which are equally spaced along the circumferential direction of the straight rod portion 64, and the length of the recess ( L1) is slightly larger than the length of the tooth (L2).
圖11與圖12顯示本發明第三實施例的鑽尾螺絲50，在此實施例中，桿體52上只設有第一螺紋70，在第一螺紋70的各螺牙74上設有沿著直桿部64之周圍方向等角度分隔的3個凹部82以及3個牙部84，凹部長度(L1)略小於牙部長度(L2)，但大於一半的牙部長度(L2)。11 and 12 show a self-drilling screw 50 according to a third embodiment of the present invention. In this embodiment, only the first thread 70 is provided on the shaft 52, and the thread 74 of the first thread 70 is provided along the thread 74. The three recesses 82 and the three teeth 84 are equally spaced in the direction around the straight rod portion 64, and the recess length (L1) is slightly smaller than the tooth length (L2), but is larger than half the length (L2).
以上所述為本發明之較佳實施例之詳細說明與圖式，並非用來限制本發明，本發明之所有範圍應以下述之專利範圍為準，凡專利範圍之精神與其類似變化之實施例與近似結構，皆應包含於本發明之中。The above description of the preferred embodiments of the present invention is not intended to limit the scope of the present invention, and the scope of the invention should be limited to the following claims. And the approximate structure should be included in the present invention.
10‧‧‧鑽尾螺絲10‧‧‧Drilling screws
12‧‧‧桿體12‧‧‧ rod body
14‧‧‧螺紋14‧‧‧ thread
16‧‧‧鑽尾部16‧‧‧Drill tail
18‧‧‧頭部18‧‧‧ head
20‧‧‧尖端20‧‧‧ tip
22‧‧‧切刃部22‧‧‧ cutting edge
24‧‧‧排屑槽24‧‧‧ chip flute
26‧‧‧V型槽26‧‧‧V-groove
28‧‧‧切削刃28‧‧‧ cutting edge
30‧‧‧鑽尾螺絲30‧‧‧Drilling screws
32‧‧‧桿體32‧‧‧ rod body
34‧‧‧螺紋34‧‧‧ thread
36‧‧‧鑽尾部36‧‧‧Drill tail
38‧‧‧頭部38‧‧‧ head
40‧‧‧尖端40‧‧‧ tip
42‧‧‧切刃部42‧‧‧ cutting edge
44‧‧‧翅片44‧‧‧Fins
50‧‧‧鑽尾螺絲50‧‧‧Drilling screws
52‧‧‧桿體52‧‧‧ rod body
54‧‧‧鑽尾部54‧‧‧Drill tail
56‧‧‧頭部56‧‧‧ head
58‧‧‧尖端58‧‧‧ tip
60‧‧‧切刃部60‧‧‧ cutting edge
62‧‧‧承孔62‧‧‧ hole
64‧‧‧直桿部64‧‧‧ Straight section
66‧‧‧下段66‧‧‧ lower section
68‧‧‧上段68‧‧‧上段
70‧‧‧第一螺紋70‧‧‧First thread
72‧‧‧第二螺紋72‧‧‧second thread
74‧‧‧螺牙74‧‧‧ thread
76‧‧‧下切削面76‧‧‧Down cutting surface
78‧‧‧上切削面78‧‧‧Upper cutting surface
80‧‧‧切削線80‧‧‧ cutting line
82‧‧‧凹部82‧‧‧ recess
84‧‧‧牙部84‧‧‧ teeth
86‧‧‧側邊86‧‧‧ side
87‧‧‧圓弧角87‧‧‧Arc angle
d1、d2、d3‧‧‧外徑D1, d2, d3‧‧‧ outer diameter
D‧‧‧凹入深度D‧‧‧ recessed depth
H‧‧‧牙高 H‧‧‧ teeth height
L1‧‧‧凹部長度L1‧‧‧ recess length
L2‧‧‧牙部長度L2‧‧‧Den length
P‧‧‧螺距P‧‧‧pitch
X‧‧‧縱向軸線X‧‧‧ longitudinal axis
圖1顯示一習用鑽尾螺絲的示意圖。Figure 1 shows a schematic view of a conventional self-drilling screw.
圖2顯示另一習用鑽尾螺絲的示意圖。Figure 2 shows a schematic view of another conventional self-drilling screw.
圖3係本發明第一實施例之鑽尾螺絲的立體圖。Figure 3 is a perspective view of a self-drilling screw of the first embodiment of the present invention.
圖4顯示圖3之鑽尾螺絲的一前視圖。Figure 4 shows a front view of the self drilling screw of Figure 3.
圖4a係圖4之一圈取部分的放大圖。Figure 4a is an enlarged view of a circled portion of Figure 4.
圖4b係沿圖4a之4b-4b線所取的剖視圖。Figure 4b is a cross-sectional view taken along line 4b-4b of Figure 4a.
圖5係沿圖4之5-5線所取的剖視圖。Figure 5 is a cross-sectional view taken along line 5-5 of Figure 4.
圖6係沿圖4之6-6線所取的剖視圖。Figure 6 is a cross-sectional view taken along line 6-6 of Figure 4.
圖7顯示以圖3之鑽尾螺絲旋入一複合板的示意圖。Figure 7 shows a schematic view of the screw of Figure 3 screwed into a composite panel.
圖8顯示圖7之鑽尾螺絲進一步旋入金屬板而將複合板與金屬板結合的示意圖。Figure 8 is a schematic view showing the screw of Figure 7 further screwed into the metal plate to join the composite plate to the metal plate.
圖9係本發明第二實施例之鑽尾螺絲的立體圖。Figure 9 is a perspective view of a self-drilling screw of a second embodiment of the present invention.
圖10係沿圖9之10-10線所取的剖視圖。Figure 10 is a cross-sectional view taken along line 10-10 of Figure 9.
圖11係本發明第三實施例之鑽尾螺絲的立體圖。Figure 11 is a perspective view of a self-drilling screw of a third embodiment of the present invention.
圖12係沿圖11之12-12線所取的剖視圖。Figure 12 is a cross-sectional view taken along line 12-12 of Figure 11.
Claims (10)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107101464A TWI648479B (en) | 2018-01-15 | 2018-01-15 | Self-drilling screw |
| AU2018264105A AU2018264105B2 (en) | 2018-01-15 | 2018-11-16 | Self-Drilling Screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107101464A TWI648479B (en) | 2018-01-15 | 2018-01-15 | Self-drilling screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI648479B TWI648479B (en) | 2019-01-21 |
| TW201932724A true TW201932724A (en) | 2019-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW107101464A TWI648479B (en) | 2018-01-15 | 2018-01-15 | Self-drilling screw |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2018264105B2 (en) |
| TW (1) | TWI648479B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9417920U1 (en) * | 1994-11-09 | 1995-01-05 | Gehring, Manfred, Dr., 72250 Freudenstadt | Screw for fastening ridge tiles |
| JPH11166519A (en) * | 1997-12-02 | 1999-06-22 | Topura Co Ltd | Drill screw |
| DE29906274U1 (en) * | 1999-04-08 | 1999-06-24 | A-Z Ausrüstung und Zubehör GmbH & Co. KG, 45525 Hattingen | Self-drilling and thread-forming connecting element |
| GB0315548D0 (en) * | 2003-07-03 | 2003-08-06 | Plasplugs Ltd | Wall plug |
| DE202004002877U1 (en) * | 2004-02-25 | 2005-06-30 | A-Z Ausrüstung Und Zubehör Gmbh & Co. Kg | Thread forming screw |
| TWM383651U (en) * | 2010-02-11 | 2010-07-01 | Boss Prec Works Co Ltd | Screw |
| US9353784B2 (en) * | 2010-03-02 | 2016-05-31 | Atlas Bolt & Screw Conpany LLC | Method of installing fastener to secure metal panel to wood structural element |
| TWM446239U (en) * | 2012-09-27 | 2013-02-01 | Bi Mirth Corp | Wood screw |
| US9523383B2 (en) * | 2013-03-26 | 2016-12-20 | Simpson Strong-Tie Company, Inc. | Variable thread fastener |
| TWM507469U (en) * | 2014-11-28 | 2015-08-21 | Masterpiece Hardware Ind Co Ltd | Improved structure of a wood screw |
| US9683592B2 (en) * | 2015-07-13 | 2017-06-20 | Masterpiece Hardware Industrial Co. Ltd. | Wooden screw |
-
2018
- 2018-01-15 TW TW107101464A patent/TWI648479B/en active
- 2018-11-16 AU AU2018264105A patent/AU2018264105B2/en active Active
Also Published As
| Publication number | Publication date |
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| TWI648479B (en) | 2019-01-21 |
| AU2018264105A1 (en) | 2019-08-01 |
| AU2018264105B2 (en) | 2020-06-25 |
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