五、新型說明： 【新型所屬之技術領域】 本創作係有關於一種螺釘。 【先前技術】 ，習知之螺釘係供直接鑽設於物個定，於鑽人螺釘的同時 形成螺孔，_螺釘固定各式物件，其中，於螺釘鑽人物件時， 需將碎屑向周圍推擠或排出，以形成螺孔，往往有大量碎屑堆 積於螺釘前端，牙，緊迫於财_、釘前端使鑽入 螺釘時將遭遇巨大阻力。 於是’有於螺釘前端開設剖溝者，如TWM382385號專利 所揭不’使碎屑可沿娜㈣釘後端_，然而碎屑堆積至螺 釘中間部分時，該些碎屑仍堆積於螺牙周圍，緊迫於螺牙，形 成鑽設螺釘的阻力。 【新型内容】 本創作之主要目的在於提供—觀釘，能減少鑽設螺釘時 所遭遇的阻力。 為達成上述目的，本創作提供一種螺釘，包括一桿身與一 螺牙，該螺牙自該桿身徑向地凸出形成，該螺牙沿該桿身螺旋 狀地延伸，綱牙具有螺旋狀連續排列触數彻部，各該刀 部具有-遠離該桿身的稜線’每兩相鄰稜線之間形成一折角， 各該稜線至該桿身的距離向各該刀部的兩端漸擴，各該刀部的 厚度向各該刀部的兩端漸增。 _牙於折可供螺表面，利 r__ 部；·：==:::: 於工件時骑遇驗力。 +霸鑽认 實施方式】 以下僅以實施例說明本創作可能之實施態樣，然並非用以 限制本創作所欲賴之鱗，合先敛明。 請參考圖卜本創作提供一種螺釘，包括-桿身！與一螺 該桿身1具有-頭部u、_身部12與一尾部13，該身部 12連接於該頭部n與該尾部13之間，該頭部n較該身部凸 出並可幵y成有-子形、十字形或六角开)凹槽，而可供一工具 卡抵於該頭部U，帶動本創作螺釘轉動進行螺鎖。該尾部^ 則可形成有-_延伸之域131，使本創作可供翻於木工 作業，供直接鎖設於木質1件+，於本_其他可能的實施例 中’該尾部13亦可改設為其他外形，以供便於製作或供適用 於其他各種工作場合。 請參考圖2，該螺牙2係自該桿身丨徑向地凸出形成，更 明確地說，該螺牙2位於該桿身1之身部12與尾部13，該螺 牙2沿該桿身1螺旋狀地延伸’該螺牙2具有螺旋狀連續排列 的複數個刃部21、21’ ’刃部21、21，具有一遠離該桿身的稜 線21卜21Γ，每兩相鄰稜線211、211，之間形成一折角22， -各心稜線2n、211至該桿身的距離向各該刃部2卜21， 的兩端漸擴，且各該刃部21、21，的厚度向各該刃部21、21， 的兩端渐增其中，稜線至該桿身的距離係指該棱線上各點到 該桿身表面_直距離，即稜線上各_桿身表面的最短距 離’稭此’如圖2與圖2A所示，使該螺牙2在其延伸的方向 上具有不均句的厚度，在各該刀部Μ、a，的兩端，亦即在各 5折角22處具有較大的厚度，在各該稜線Μ卜Ml，的中央處 則具有較小的厚度，請參考圖3，各該刀部2i、21，的厚度亦 可更為顯著地向各該刀部2卜21’的兩端漸增，使該螺牙於各 該折角22處的外形近似於菱形角錐。 請參考圖2B，於本創作較佳實施财，各該折角22可為 i弧形之鼠角’可避免㈣22過於尖銳，而於本創作供 鎖叹於工件時卡抵於工件内部，形成螺鎖時的阻礙。每兩相鄰 稜線211之間的夾角則可大於9〇度，較佳者，介於9〇度至 度之間亦即各該折角22形成一圓弧开)之鈍角，使螺牙 具有相似於四邊形、五邊形或六邊形的外輪廓，進一步避免折 角22過於尖銳。又較佳者，各該稜線211可包括有二弧線212、 213，各該孤，線212、213的中心向該桿身12外凸該二弧線 212 213於該稜線中心相接而形成有一凹口 214 ,各該凹口 2M向該桿身12内凹，使該螺牙不僅於各該稜線2ιι的尹央 處具有較小的厚度，同時亦具有較小的徑向寬度，藉此，當本 創作鎖設於工件中時，可供鎖入工件產生的木屑堆積容置於凹 卿7971 口 214周圍。 u復請參相1，梢作除包括有該桿身1與該螺牙2外， 可於該身部12形成有連接於上述之螺牙的另-螺牙14，可 供咬合於鎖設的工件，此外，亦可於該身部12形成有盘上述 之螺牙交桃奸15，供咬合敎料 的材料 或鎖設時產生的碎屑。 千内。P的材枓 承上述，本創作所提供的螺針可供直接鎖設於工件中 =鎖時’可细銜2崎肖22雜场厚度賴向寬度推 擠工件材料以及鎖設產生的_，螺牙2的其他部分則 :’而較不易與工件卡抵，使本創作具有易於供鎖設於 的使用特點，同時，螺牙2厚度較小處可供螺鎖產生的 7推積，而可避免羽與螺釘相互推擠，形成_的阻力， 至使工件崩裂；而當本創作鎖設於工件中固定後，則可利用 ^個^ 22處卡抵於工件’使本創作仍保有與工件較佳的結 曰固定能力’科會輕易脫落或被直接抽離工件。 ▲綜上所述，本創作係提供一種螺釘，除保持有一定的固定 能力外’更具有易於供鎖設於工件的使用特點，此外，於鎖設 時更可減少工件崩裂情形的發生，具有極佳的使用效果，實乃 極具進步功效之證明。 【圖式簡單說明】 圖1係本創作之側視圖。 圖2係本創作之局部立體圖。 M407971 圖2A係本創作中螺牙之局部剖視圖。 圖2B係本創作之剖面示意圖。 圖3係本創作另一實施例之局部立體圖。 【主要元件符號說明】 b桿身 2 :螺牙 11 :頭部 21、21’ ：刃部 12 :身部 211、21Γ :稜線 13 :尾部 212、213 :弧線 131 :切槽 214 :凹口 14 :螺牙 15 :絞牙 22 :折角V. New description: [New technical field] This creation department is about a kind of screw. [Prior Art], the conventional screw is used for direct drilling in the object, and the screw hole is formed at the same time as the screw is drilled, and the _ screw is used to fix various objects, wherein when the screw is used to drill the character, the debris needs to be turned around. Pushing or discharging to form a screw hole, often a large amount of debris accumulates on the front end of the screw, and the teeth are pressed tightly, and the front end of the nail will encounter great resistance when drilling the screw. Therefore, there is a cleavage at the front end of the screw. As disclosed in the TWM382385 patent, the debris can be along the rear end of the nail. However, when the debris accumulates in the middle of the screw, the debris still accumulates on the thread. Around, pressing on the thread, forming resistance to the screw. [New Content] The main purpose of this creation is to provide a nail that can reduce the resistance encountered when drilling screws. In order to achieve the above object, the present invention provides a screw comprising a shaft and a thread formed by a radial protrusion of the thread, the thread extending helically along the shaft, the thread having a spiral Continuously arranging the number of contacts, each of the knives having a ridge line away from the shaft, forming a chamfer between each two adjacent ridges, and the distance from each ridge to the shaft gradually decreases toward the ends of each of the knives Further, the thickness of each of the blade portions gradually increases toward both ends of the blade portion. _ teeth are available for the surface of the screw, r__ part; ·:==:::: When riding the workpiece, the force is encountered. + 钻 认 实施 实施 实施 实施 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 】 Please refer to the drawing to provide a kind of screw, including - shaft! And the shaft 1 has a head portion u, a body portion 12 and a tail portion 13, and the body portion 12 is coupled between the head portion n and the tail portion 13, the head portion n is protruded from the body portion The 幵 y can be a sub-shaped, cross-shaped or hexagonal open groove, and a tool card can be attached to the head U to drive the creation screw to rotate. The tail portion ^ can be formed with a -_extension field 131, so that the creation can be turned over to the woodworking work for direct locking on the wooden piece +, in the other possible embodiments, the tail portion 13 can also be modified Set to other shapes for easy production or for a variety of other work situations. Referring to FIG. 2, the thread 2 is formed to protrude radially from the shaft body. More specifically, the thread 2 is located at the body portion 12 and the tail portion 13 of the shaft 1, and the thread 2 is along the thread. The shaft 1 extends in a spiral shape. The thread 2 has a plurality of blade portions 21, 21' which are arranged in a spiral shape. The blade portions 21, 21 have a ridge line 21 away from the shaft, and two adjacent ridge lines. 211, 211, a chamfer 22 is formed, - the distance between each of the core ridges 2n, 211 to the shaft is gradually diverged to both ends of the blade portion 2, and the thickness of each of the blade portions 21, 21 Increasing to both ends of each of the blade portions 21, 21, the distance from the ridge line to the shaft body means the distance from the point on the ridge line to the surface of the shaft _ straight distance, that is, the shortest distance from the surface of each ridge on the ridge line As shown in FIG. 2 and FIG. 2A, the thread 2 has a thickness of a non-uniform sentence in the direction in which it extends, at both ends of each of the blade portions Μ, a, that is, at each of the five-fold angles. 22 has a relatively large thickness, and has a small thickness at the center of each of the ridge lines M1, please refer to FIG. 3, and the thickness of each of the knives 2i, 21 can be more significantly Knife Both ends of the portion 2b 21' are gradually increased so that the shape of the thread at each of the corners 22 approximates a diamond pyramid. Please refer to FIG. 2B. In the present invention, the angle 22 can be a curved arc of the i-curve. (4) 22 is too sharp, and the card is pressed against the inside of the workpiece when the lock is applied to the workpiece to form a snail. Obstruction when locking. The angle between each two adjacent ridges 211 may be greater than 9 degrees, preferably between 9 degrees and degrees, that is, each of the corners 22 forms an arc of an obtuse angle, so that the threads have similarities The outer contour of the quadrilateral, pentagon or hexagon further prevents the chamfer 22 from being too sharp. Further preferably, each of the ridge lines 211 may include two arcs 212, 213, and the center of each of the isolated lines 212, 213 is convex toward the shaft 12, and the two arcs 212 213 are joined at the center of the ridge line to form a concave shape. a port 214, each of the notches 2M is recessed toward the shaft 12, so that the thread has a smaller thickness not only at the Yinyang of each ridgeline 2ι, but also has a smaller radial width, thereby When the creation lock is set in the workpiece, the wood chips accumulated for locking into the workpiece are placed around the mouth 7971 of the concave. In addition to the shaft 1 and the thread 2, a further thread 14 connected to the thread may be formed on the body 12 for engagement with the lock. In addition, the body 12 may be formed with the above-mentioned threaded trousers 15 for the material to be bitten or the debris generated during the locking. Within a thousand. The material of P is the above, and the screw provided by this creation can be directly locked in the workpiece = when the lock is used, the fineness can be 2, the thickness of the miscellaneous field, the width of the field, the workpiece material and the lock _, The other parts of the thread 2 are: 'It is less easy to get stuck with the workpiece, so that the creation has the characteristics of being easy to be locked, and at the same time, the thickness of the thread 2 is small, and the 7-integration of the screw lock can be obtained. The feather and the screw can be prevented from pushing each other to form a resistance of _, so that the workpiece is cracked; and when the creation lock is fixed in the workpiece, the ^22 card can be used to reach the workpiece, so that the creation is still retained. The better knot-fixing ability of the workpiece will be easily removed or directly removed from the workpiece. ▲In summary, the author provides a kind of screw, which not only maintains a certain fixing ability, but also has the characteristics of being easy to be locked on the workpiece. In addition, it can reduce the occurrence of cracking of the workpiece during locking. Excellent results, it is a proof of progress. [Simple description of the diagram] Figure 1 is a side view of the creation. Figure 2 is a partial perspective view of the present creation. M407971 Figure 2A is a partial cross-sectional view of the thread in the present creation. Figure 2B is a schematic cross-sectional view of the present creation. Figure 3 is a partial perspective view of another embodiment of the present invention. [Description of main component symbols] b Shaft 2: Screw 11: Head 21, 21': Blade 12: Body 211, 21Γ: Ridge 13: Tail 212, 213: Arc 131: Groove 214: Notch 14 : thread 15 : twisted tooth 22 : chamfer