M427465 五、新型說明： 【新型所屬之技術領域】 一種防裂木螺絲的改良。 【先前技術】 物件彼此間的結合大多數以螺絲螺合的固定方式為之，而在螺絲 的設計上必須根據不同物件的不同材質以及不同材質的不同特性，，而 有不同的因應創作設計。因此，在螺絲的設計上有：木質物件用的木 螺絲與金屬物件用的螺絲。 然，在有關木質物件用的木螺絲部分除了要求鑽孔鎖入迅速輕 省外，最重要的是防止物件龜裂，而螺絲鎖入時之所以會造成物件的 龜裂原因，主要是木質物件的硬度較硬時，螺絲鎖入速度太快而排屑 速度較慢時，即會產生排屑不順進而撐裂物件的問題，因此如何解決 物件龜裂的問題則為螺絲設計的重點所在。 為此，業界紛紛加以設計創作如已知的公告第M351953號「木螺 絲改良構造」、公告第1266002號「具有切削功能的木螺絲」及公告第 541399號「用於複合木材之曱板螺絲」等先前創作技術。其中： 公告第M351953號「木螺絲改良構造」言史計特徵在於：螺絲桿身 上設有第-敎段與第二歡段，且第—敎段鮮二敝段間分隔 形成-間隙不互相接續連接，而第二段螺紋係設於尖錐端，第二段螺 紋之螺距及螺旋角度大於第一段螺紋段。該設計缺點在於：第二段螺 紋係設於尖錐端’而第_螺紋段與第二螺紋段間分隔形成—間隙不互 相接續連接，造成排屑的不連續，並在兩螺紋段間形成堆積阻力，易 因該堆積的無法順暢疏壓而導致物件結構體的崩裂。 公告第12_號「具有切削功能的木螺絲」設計特徵在於：螺絲 3 穴錐端設置與螺絲轴向中心線平行的直線切屑螺牙。該設計缺點在 於：切屑螺牙與鎖緊螺牙間亦分隔形成一間隙不互相接續連接，造成 排屑的不連續，並在兩螺牙段間形成堆積阻力，易因該堆積的無法順 暢疏壓而導致物件結構體的崩裂。 公告第541399號「用於複合木材之甲板螺絲」設計特徵在於：螺 絲幸干身上6χ有上螺紋區與下螺紋區，且上螺紋區與下螺紋區間為一無 螺紋區’亦即上螺紋區與下螺·不互祕續連接，下敎區之螺距 及螺旋角度大於上螺紋區。該設計缺點在於：上觀區與下螺紋區間 分隔形成-互不接續的無螺㈣，造成的不連續，並在上下兩螺 紋區之間形成堆積阻力，易_堆積的無法順暢疏壓而導致物件結構 體的崩裂。 鑒於上述諸先前技術創作存在排屑不順暢的因素，以及在鎖入硬 度較硬的木質物件時’易因鑽進速度過快而造成切削鑽孔躁進導致排 屑不順暢，形成螺絲螺進阻力與硬度較高的木質物件的崩裂等缺點， 因此’相Μ絲的改進與困難的突破，純有待業界加以研究解決。 【新型内容】 ' 本案創作「防裂木螺絲」主要創作目的在於：有效防止螺絲鎖入 木質物件時發生木質物件龜裂的情形。 其特徵在於·螺絲尾末端為_尖端定點於尖端定點卿絲頭方 向設一奴長度的無螺牙段，在該無螺牙段的上端__方向設一 設定長度的切胸牙段，該切卿牙段的切綱牙螺旋導程角度至少 以上，於該切削螺牙段上端與螺絲頭間則為設定長度的 镇緊螺牙段。 藉由螺絲尾末端之尖端定點與切削螺牙段間的無螺牙段，提供螺 M427465 絲精準定位鑽孔以及鑽進速度的緩衝伽，使被鎖物件為較硬木質 時，能產生緩衝鑽入進程使接續的切削螺牙能充分的切削及排屬，並 達到切屑娜賴不騎的效果，進而有效達到優異鲜桃點鑽孔 以及切削 '誦快速、防裂和螺設牢固的喃進步效益。 【實施方式】 請參閱同附圖式部分第i圖至第4圖所示本案「防裂木螺絲」不 同運用實補’所《施_是為充分·本賴㈣鱗的較佳的 實施例’本案新型的保護範圍不限於此。本技術領域的技術人員在本 新型基礎上所做的賴替代或變換，均在本案新型的保護範圍之内， 特予聲明。 請參閱第1 ®至第4騎示為本案運用實關，該獅桿體’i 一 端為螺絲尾U，另端為螺_ 12 ’於螺絲桿體i的_尾n處設有無 螺牙段A ’在無螺牙段a上端與螺絲頭12 __桿體丨上設有靠近 螺絲尾〗1無螺牙段A的切觸牙段B及靠近螺絲頭12的鎖緊螺牙段 C ’其重點特徵在於： 螺絲尾11末端為—尖端定點P，於尖端定點p__丨2方向設 一設定長度的無螺牙段A，在該無段A的上端__ 12方向設 一設定長度的切_牙段13’該_螺牙段B的_螺牙13螺旋導程 角度R至少為45度角(含)以上。 其中’所設切削螺牙13的螺旋導程角度係為等於或大於必度的 導程角度設計運用。螺牙段B的外徑小於騎财段c的外徑。 在設計運用上’切削螺牙段B的切削螺牙13可為單數切削螺牙或 複數切削螺牙。鎖緊螺牙段C _緊螺牙14可為單數鎖緊螺牙或複數 鎖緊螺牙。又’切削螺牙13與鎖緊螺牙14間可為直接-體延續成型(如 5 圖式令第1 ®及第3 _示例)或非— 4圖所示例），且切削螺牙13 導程角度。 體延續成型(如圖式中第2圖及第 的螺旋導程角度大於鎖緊螺牙14的螺旋 藉由本案*設計_，得私如T«效益·· ; 尾末端之尖端定點與切觸牙關的無螺牙段，提供螺絲 2準定位鑽孔以及鑽進速度的緩衝作用，使被鎖物件為較硬木質時， 能產生緩_人的麟速度，使接__螺牙能充分的切削及排 屬’並達到切除補不積聚的效果，進而讓螺絲的鎖人順暢、木 質物件不崩裂。 (2)有效達到優異的準確定關孔以及侧、觸鴨、防裂和螺 設牢固的新穎進步效益。 ” 【圖式簡單說明】 第1圖：本創作實施例(一）。 第2圖：本創作實施例(二）。 第3圖：本創作實施例(三）。 第4圖：本創作實施例(四）。 【主要元件符號說明】 1螺絲桿體 11螺絲尾 I2螺絲頭 I3切削螺牙 14鎖緊螺牙 A無螺牙段 B切削螺牙段C鎖緊螺牙段 P尖端定點 R導程角度M427465 V. New description: [New technical field] A modification of crack-proof wood screws. [Prior Art] Most of the objects are combined with each other by screwing, and the design of the screws must be based on the different materials of different objects and the different characteristics of different materials. Therefore, the design of the screws includes: wood screws for wooden objects and screws for metal objects. However, in the wood screw part for wooden objects, in addition to requiring quick and light locking, the most important thing is to prevent the object from cracking, and the reason why the screw is locked when the screw is locked is mainly the wooden object. When the hardness is hard, when the screw lock speed is too fast and the chip removal speed is slow, the problem that the chip removal is not smooth and the object is cracked is generated. Therefore, how to solve the problem of the object crack is the key point of the screw design. To this end, the industry has designed and created the known bulletin No. M351953 "Wood Screw Improvement Structure", Announcement No. 1266002 "Wood Screws with Cutting Function" and Announcement No. 541399 "Saw Screws for Composite Wood" Etc. Previous authoring techniques. Among them: Announcement No. M351953 "Modified Structure of Wood Screws" is characterized by: the first section and the second section of the screw rod are arranged, and the first section of the first section is separated from each other - the gaps are not connected to each other. The second segment of the thread is attached to the tip end of the tip, and the pitch and helix angle of the second segment of the thread are greater than the first segment of the thread. The disadvantage of this design is that the second section of the thread is provided at the tip end of the tip and the first thread section is separated from the second thread section - the gaps are not connected to each other, causing discontinuity of the chip removal and forming between the two thread segments. The accumulation resistance is easy to cause the object structure to collapse due to the inability to smooth the accumulation. Announcement No. 12_ "Wood screws with cutting function" is characterized in that the screw 3 taper end is provided with a straight swarf thread parallel to the axial center line of the screw. The disadvantage of this design is that the gap between the chip thread and the locking screw is also formed to form a gap, which is not connected to each other, which causes the chip to be discontinuous, and forms a stacking resistance between the two thread segments, which is easy to be smooth due to the accumulation. The pressure causes cracking of the object structure. Announcement No. 541399 "Deck Screws for Composite Wood" is characterized in that the screw has a threaded area and a lower threaded area, and the upper threaded section and the lower threaded section are a non-threaded area, that is, the upper threaded area. Connected with the lower screw and the other, the pitch and the helix angle of the lower jaw area are larger than the upper threaded area. The disadvantage of this design is that the upper view area and the lower thread section are separated and formed without each other (4), which causes discontinuity, and forms a stacking resistance between the upper and lower threaded areas, and the easy accumulation of the pile cannot be smoothly caused. Cracking of the object structure. In view of the above-mentioned prior art creations, there are factors such as unsmooth chip removal, and when locking hard-hardened wooden objects, it is easy to cause the chipping to be unsatisfactory due to the excessively high drilling speed, resulting in screw unscrewing. The shortcomings of cracking and cracking of wooden objects with high resistance and hardness, so the improvement of the phase silk and the breakthrough of difficulties are only to be solved by the industry. [New Content] 'The main purpose of the creation of "Fracture-Resistant Wood Screws" is to prevent the cracking of wooden objects when the screws are locked into wooden objects. The utility model is characterized in that: the end of the screw tail is a thread-free segment of the length of the tip of the screw at the tip of the tip of the wire, and a set length of the segment of the breast is set in the upper end of the threadless segment. The angle of the spiral lead of the cut teeth is at least above, and the length of the threaded screw is set between the upper end of the cutting screw segment and the screw head. By means of the screw-free section between the tip end of the screw tail and the cutting screw segment, the screw M427465 wire is precisely positioned and the buffering speed of the drilling speed is provided, so that when the locked object is hard wood, the buffer drill can be generated. Into the process, the cutting cutting teeth can be fully cut and arranged, and the effect of cutting and snagging is not achieved, so that the excellent fresh peach point drilling and the cutting of the fast, crack-proof and sturdy sturdy progress can be effectively achieved. benefit. [Embodiment] Please refer to the "Implementation of the anti-cracking wood screws" shown in the figure i to the figure in the figure, which is the best example of the application. 'The new scope of protection in this case is not limited to this. Those skilled in the art who have made substitutions or alterations on the basis of the present invention are specifically claimed within the scope of the novel protection of the present invention. Please refer to the 1st to 4th riding instructions for the application. The lion's body 'i has a screw tail U at one end and a screw _ 12 ' at the other end of the screw shaft i. A 'the upper end of the non-threaded segment a and the screw head 12 __ the shank body is provided with a contact tooth segment B close to the screw tail 1 without the screw segment A and a locking screw segment C ' near the screw head 12 The key features are: the end of the screw tail 11 is the tip end point P, and a threadless segment A of a set length is set in the direction of the tip point p__丨2, and a set length is set in the direction of the upper end __12 of the segment A The _ tooth segment 13' _ thread segment B has a screw lead angle R of at least 45 degrees (inclusive) or more. The angle of the spiral lead of the cutting screw 13 is set to be equal to or greater than the lead angle design. The outer diameter of the screw segment B is smaller than the outer diameter of the riding section c. The cutting screw 13 of the cutting screw segment B can be a single cutting thread or a plurality of cutting threads. The locking screw segment C _ tightening screw 14 can be a single locking screw or a plurality of locking threads. In addition, the 'cutting screw 13 and the locking screw 14 can be directly-body continuous forming (such as the 5th drawing of the 1st and 3rd _ examples) or the non- 4 figure), and the cutting thread 13 guide The angle of the process. The continuation of the body shape (Fig. 2 and the spiral lead angle of the screw thread 14 are larger than the screw of the locking screw 14 by the design of the case*, which is as private as T« Benefit··; the tip of the tail end is fixed and touched The non-threaded segment of the tooth provides the quasi-positioning drilling of the screw 2 and the buffering effect of the drilling speed, so that when the object to be locked is hard wood, the speed of the lining can be generated, so that the __ screw can be fully equipped. Cutting and arranging 'and achieve the effect of replenishing and accumulating, so that the lock of the screw is smooth and the wooden objects are not cracked. (2) Effectively achieving excellent quasi-determination of the hole and side, touching the duck, cracking and screwing The novel and progressive benefits." [Simple description of the schema] Figure 1: This creation example (1). Figure 2: The present creation example (2). Figure 3: The creation example (3). Figure: This creation example (4). [Main component symbol description] 1 screw body 11 screw tail I2 screw head I3 cutting screw 14 locking screw A screwless segment B cutting screw segment C locking screw Segment P tip fixed point R lead angle