⑽〇396 五、新型說明： 【新型所屬之技術領域】 鋒利於—種自攻螺絲結構’尤指1具有增加鑽頭 鋒利功旎之自攻螺絲之鑽頭結構改良案。 【先前技術】 伽咖撤恤構，蝴她告編號·· 7=自機之峨树」，編，主要係由自攻 累4螺牙部尾端之鑽頭部二對稱面設為尖錐柱形，其中一對稱 面之為順時針方向螺人面之—邊係為—倒三角形平面之到面 ，到面外側設有-刀鋒σ，以利刮人工件内；尖錐柱另一邊為 錯尖，鑽尖頂端面上則開有一小尖肖（該鑽尖頂端面之同-彼 面則為另—對稱面之到面’另—對稱面之鐵尖則沒有開小尖角 )’而在刮面與鑽尖之間則開設有—條排屑斜面者；據此，使 用自攻螺絲螺人工件時，該自攻螺絲之鑽頭部的尖錐柱端之一 邊刮面上所設之小尖角可使鑽頭部之—端角度變小，進而改美 鑽頭鑽入工件之切削能力，且該到出之殘屑則可由另一面之到 面刨起，並經由排屑斜面排離鑽頭部者。 上述S知結構之缺點，係僅在鐵頭之尖錐柱單邊到面開設 一小尖角’軸具有增加該處刀刀鋒利度之_功能。惟，該 設置有小尖角邊之刮面’在第一時間係完全無法與工作件相接 觸，等於完全喪失其欲達狀目的。何以如此，主要原因在於 :尖錐柱設有小尖角之刮面較相對邊無設立小尖角之到面高度 3 為高’故無論如何旋轉鑽頭之尖錐柱，該未設立小尖角之刮面 必定先與轉件接觸，據此，有無設到、尖肖在實際操作上根 本產生不了任何作用者。 有於此本創作人乃經悉心地試驗與研究，特別針對自 攻螺絲之綱結構加㈣思、改^，並秉持輸秘之創作精 神’在經乡次之試作和實驗後，終於完成本創作錢出本案之 新型專利申請。 【新型内容】 本創作主要目的，係提供—種有效增加_之刀鋒利刀度 ’以及增加_殘騎出侧之自攻螺絲之鑽頭結構改良。 為達到上述目的，本創作提供—種自攻螺絲之鑽頭結構改 良’該自攻螺絲，包括設有外螺紋段，於槐纹段一端設有帽 頭，另端設有剩’ _頭末端職有尖雜，且沿鑽頭中心 軸向斜對肢有對稱縱向泰，位在縱向刮_邊形成有排屬 面，而縱_面之外雜分卿劾彳刀和及下刀鋒口，前述 對稱縱向之兩侧刀鋒口與鑽頭之中心軸向呈平行狀態，而 鑽頭位在縱_面後端係呈角度漸縮狀；其特徵在於： 該鑽頭位在其巾-縱向刮喊兩縱㈣面之下刀鋒口外 緣向下-體延伸有凸到面’該凸刮面係向後延伸有實體曲弧段 ’以增加其凸刮面之結構強度，俾以藉由在到面之下刀鋒口外 側增設之凸到面’具有增加刀刀利度功能，以及在下刀鋒口與 鄰接凸刮蚊間自卿成—翻導孔，可將懒之朗經由排 M380396 屑導孔排出，再由排屑面導出者。 【實施方式】 餘下，茲再配合本創作較佳實施例之圖式進一步說明如后 ，以期能使熟悉本創作相關技術之人士，得依本說明書之陳述 據以實施： 首先，敬請配合參閱第一至四圖所示，為本創作自攻螺絲 之鑽頭結構改良較佳實施例一，其說明該自攻螺絲1〇沿中心(10) 〇 396 V. New description: [New technical field] Sharpness - Self-tapping screw structure ‘In particular, 1 bit structure improvement with self-tapping screws that increase the sharpness of the drill bit. [Prior Art] Gaga's withdrawal structure, she told me that the number 7·== 自 自 自 」 , , , , , , , , , 主要 主要 主要 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自Shape, one of the symmetry planes is the clockwise direction of the human face—the edge is the surface of the inverted triangle plane, and the blade σ is placed outside the surface to facilitate the scraping of the workpiece; the other side of the tapered cone is wrong. Tip, the tip end of the drill tip is opened with a small cusp (the same as the top end of the drill tip - the other side is the other - the symmetry plane to the surface 'the other - the symmetry plane of the iron tip does not open the small angle) Between the scraping surface and the drill tip, a stripping chamfer is opened; accordingly, when the self-tapping screw is used to screw the workpiece, the taper end of the tapping tap of the tapping screw is provided on one of the scraping surfaces of the taper end The small pointed angle can make the angle of the end of the drill bit smaller, thereby changing the cutting ability of the drill bit to the workpiece, and the debris can be smeared from the other side to the surface, and the drill bit is discharged from the drill bit. Part. The shortcoming of the above-mentioned S-known structure is that the shaft has a small sharp angle on the one side of the tip of the tip of the iron head, and the shaft has the function of increasing the sharpness of the knife. However, the scraping surface provided with a small pointed corner is completely incapable of coming into contact with the working piece in the first time, which is equivalent to completely losing its intended purpose. The main reason for this is that the scraper surface with a small pointed corner has a small sharp angle and the height to the surface is not high. Therefore, no matter how the rotary cone is rotated, the small pointed angle is not established. The scraping surface must first be in contact with the rotating piece, and accordingly, whether or not it is set, the sharp shaft can not produce any action at all in actual operation. This creator has been carefully experimenting and researching, especially for the structure of the self-tapping screws plus (four) thinking, changing ^, and upholding the spirit of the creation of the secret. After the trials and experiments in the township, the book was finally completed. Create a new patent application for the money. [New content] The main purpose of this creation is to provide a kind of effective improvement of the sharpness of the knife _ and the improvement of the drill bit structure of the self-tapping screw of the _ residual riding side. In order to achieve the above purpose, the present invention provides a self-tapping screw for the self-tapping screw, which includes an externally threaded section, a cap at one end of the crepe section, and a remaining end at the other end. There is a sharp point, and the symmetrical longitudinal direction of the limb along the axial center of the bit is located, and the longitudinal squeezing _ side forms a accommodating surface, and the longitudinal _ surface is outside the ridge and the lower blade edge, the symmetry The blade edges on both sides of the longitudinal direction are parallel to the central axis of the drill bit, and the bit position is angled at the rear end of the longitudinal direction; the drill bit is located in the towel-longitudinal scraping of the two longitudinal (four) faces Below the edge of the blade edge, the outer edge of the blade has a convex surface to the surface. The convex scraping surface extends rearward with a solid curved arc section to increase the structural strength of the convex scraping surface, so as to be outside the blade edge by the surface. The added convex to the surface has the function of increasing the knife's profitability, and the self-clearing hole in the lower blade edge and the adjacent convex mosquitoes, which can be discharged through the row of M380396 chip guide holes, and then the chip discharge surface Exporter. [Embodiment] In the following, the drawings of the preferred embodiment of the present invention are further described as follows, so that those who are familiar with the related art of the present invention can be implemented according to the statement of the present specification: First, please refer to As shown in the first to fourth figures, a preferred embodiment 1 of the bit structure improvement of the self-tapping screw is described, which illustrates that the self-tapping screw is along the center
軸向依序設有帽頭11、外螺紋段12及鑽頭13組成，其中， 位在帽頭11與外螺紋段12之間可依實際需求增設螺桿段14 ’或在螺桿段14兩側增設擴孔翼片（非本次創作重點所在， 故圖中未示）’而該_ 13末端形成有尖錐柱131，且沿鑽 頭13中心軸向斜對角設有對稱縱向到面132，位在縱向到面 132鄰邊形成有排屑面133，而縱向刮面132之外邊緣分卿 成侧刀鋒口 1321及下刀鋒口·，前述對稱縱向刮面132之The axial direction is sequentially provided with a cap 11 , an externally threaded section 12 and a drill bit 13 , wherein a screw section 14 ′ can be added between the cap 11 and the externally threaded section 12 according to actual needs or added on both sides of the screw section 14 Reaming fins (not the focus of this creation, not shown in the figure) 'The tip of the _ 13 is formed with a pointed cone 131, and a symmetrical longitudinal to the surface 132 is provided diagonally diagonally along the central axis of the drill bit 13 A chip discharge surface 133 is formed on the adjacent side of the longitudinal direction to the surface 132, and the outer edge of the longitudinal scraping surface 132 is divided into a side blade edge 1321 and a lower blade edge, and the aforementioned symmetric longitudinal scraping surface 132
兩侧刀鋒口聰與鑽頭13之中心軸向呈平行狀態，而鑽頭 13位在縱向勤132後端係呈角度漸縮狀（如細圖所示）； 其特徵在於： 該鑽頭13位在其中一縱向刮面132之下刀鋒口體外緣 向下-體延伸有凸刮面1323，該凸刮面卿係向後延伸有實 體曲弧段m，以增加其凸麻聰之結顧度，俾以藉由 在縱向刮面丨32之下刀鋒口體外側増設之凸刮面，具 有增加刀刀利度功能’以及在下刀鋒口·與鄰接凸刮面 5 M380396 1323之間自然形成一排肩導孔1324可將到出之殘屬經由排 屬導孔1324排出，再由位於後方之排屑面133導出，以達到 提昇排屑功能之效益者。 再者’如第五至七圖所示’為本創作自攻螺絲之鑽頭結構 改良另i效技術触實制，其主要制，該_ 13雜 在兩縱向刮面132之下刀鋒口 1322外緣向下—體延伸設有對 稱凸到面1323，該對稱凸刮面係向後延伸有實體曲弧段 134 ’於下刀和1322與祕凸細腦咖成—排屬導孔 1324。 絲上所陳’僅為本創作之一較佳實施例而已，並非用來限 定本創作實施之範圍。即凡依本創作申請專利範圍所做之均等 邊化與修飾’皆為本創作專纖圍所涵蓋。 【圖式簡單說明】 第-圖：本創作結構較佳實補—之前視圖。 第-圖.本創作結構較佳實施例—之局部放大圖。 第一圖·賴作結構較佳實關—之仰視立體圖。 第四圖本創作結構較佳實施例一之側視圖。 第五圖：本_結構触實施·之前視圖。 第八圖.本創作結構較佳實施例二之局部放大圖。 第七圖·賴作結槪佳實關二之仰视立體圖。 M380396 【主要元件符號說明】 自攻螺絲——10 帽頭----- 11 外螺紋段——12 鑽頭--------13 螺桿段--- —-14 尖錐柱-----131 縱向到面—132 側刀鋒口- -1321 下刀鋒口 一1322 凸刮面——1323 排屑導孔- -1324 排屑面-----133 曲弧段-----134The blade edge of both sides is parallel to the central axis of the drill bit 13, and the drill bit 13 is angularly tapered at the rear end of the longitudinal body 132 (as shown in the detailed figure); the feature is: the drill bit 13 is in which A longitudinal scraping surface 132 has a convex scraping surface 1323 extending downwardly from the outer edge of the blade front edge, and the convex scraping surface is extended backward with a solid curved arc m to increase the degree of convergence of the convex stalk. By the convex scraping surface provided on the outer side of the blade front body under the longitudinal scraping surface 丨32, the utility model has the function of increasing the knife blade degree and naturally forming a row of shoulder guiding holes between the lower blade edge and the adjacent convex scraping surface 5 M380396 1323. The 1324 can discharge the residual residue through the row guide hole 1324, and then be led out by the chip removal surface 133 located at the rear to achieve the benefit of improving the chip removal function. In addition, as shown in the fifth to seventh figures, the design of the bit structure of the self-tapping screw is improved, and the main technology is the main system. The _ 13 is mixed under the two longitudinal scraping surfaces 132 outside the blade edge 1322. The rim downward-body extension is provided with a symmetrical convex surface 1323 which extends rearward with a solid curved section 134' to the lower knife and 1322 and the sacral stalk-distribution hole 1324. It is only a preferred embodiment of this creation, and is not intended to limit the scope of this creation. That is, the equalization and modification of the patent application scope of this creation is covered by the creation of the special fiber. [Simple description of the diagram] The first picture: This creation structure is better complemented - the front view. Fig. - Fig. is a partially enlarged view of a preferred embodiment of the creation structure. The first picture, the structure of the Lai is better, and the bottom view is a bottom view. Figure 4 is a side view of a preferred embodiment of the present construction. Figure 5: This _structure touch implementation · front view. Figure 8 is a partial enlarged view of the second preferred embodiment of the present invention. The seventh picture is based on the perspective of Guanshiguan. M380396 [Main component symbol description] Self-tapping screw - 10 cap head ----- 11 external thread section - 12 drill bit --------13 screw section --- —-14 tip cone column -- ---131 Longitudinal to face—132 Side blade edge - -1321 Lower blade edge one 1322 convex scraping surface——1323 Chip discharge guide hole - -1324 Chip removal surface-----133 Curved arc----- 134