M410803 五、新型說明： 【新型所屬之技術領域】 特別是指一種平頭螺絲。 本新型是有關於一種螺絲 【先前技術】 參閱圖卜一現有具切削刀的平頭螺絲！包括一呈截頭 圓錐狀的螺頭i卜及一支一體連設於該螺頭u上且形成有 螺紋121的螺桿12。 該螺頭u具有-與該螺桿12相間隔的頂面iu、一自 該頂面⑴朝該螺桿12漸縮延伸的截頭圓錐面ιΐ2，及* 個等角度相間隔的^出於該截頭圓錐面112上且呈圓弧狀的 切削刀U3(因視角關係圖中僅顯示三個）。由於所述切削刀 113是呈圓弧狀，因此，切削能力差、阻力大當該平頭螺 絲1旋入硬木或結構複雜的複合材料時容易產生毛邊，造 成鎖合表面處膨脹凸起而不平整。M410803 V. New description: [Technical field of new type] Especially refers to a flat head screw. The present invention relates to a kind of screw. [Prior Art] Refer to the drawing head of a conventional cutter with a cutter! The utility model comprises a screw head 12 which is in the shape of a truncated cone and a screw 12 which is integrally connected to the screw head u and is formed with a thread 121. The screw head u has a top surface iu spaced from the screw 12, a frustoconical surface 渐2 extending from the top surface (1) toward the screw 12, and * equiangularly spaced from the section The cutting blade U3 having an arc shape on the head conical surface 112 (only three are shown in the viewing angle diagram). Since the cutting blade 113 has an arc shape, the cutting ability is poor and the resistance is large. When the flat head screw 1 is screwed into a hardwood or a composite material having a complicated structure, burrs are easily generated, causing the expansion surface at the locking surface to be uneven. .
為了改善上述缺點，相關業者研發出如圖2所示中 華民國公告第336705號「具切削刃之平頭螺絲改良」新型 專利所揭露的技術，其改善處在於：該截頭圓錐面112上形 成有多數的三角狀切刀114,又或是如圖3之中華人民共和 國公告第CN1846071號「埋頭螺絲」發明專利所揭露的扇 形切削刃115，以提升切削能力並降低切削阻力。 但是’由於前述習知切刃114或是切削刃丨丨5皆是由頂 面111朝該螺桿12方向縱向延伸，因此，當該平頭螺絲1 旋入硬木或結構複雜的複合材料時，所述切刃U4或是切削 刀115不易將所切削的毛邊排出，造成毛邊被夾制於該螺頭 3 M410803 11與鎖合表面之間，進而造成鎖合表面處膨脹凸 整。 ^ 【新型内容】 因此，本新型之目的，即在提供—箱 種具有良好切削效 率’且切削阻力低還能使表面更加平整的平頭螺絲。 於是，本新型平頭螺絲，包含一捏I ^ δ 枰身一螺旋環設於 該桿身表面的螺牙，及一個一體連設於該桿身上的螺頭。 該螺頭包括一與該桿身相間隔的頂面、—連接該頂面 與該桿身且由該頂面朝該桿身漸縮延伸的連接面，及多數 等角度相間隔地凹陷形成於該連接面上的切刀其十每 -切刃皆具有二相間隔地自該頂面朝該桿身方向彎弧延伸 且呈弧狀的切刃面。 本新型的有益效果在於利用隨著螺牙旋入方向轉動之 所述切刃呈弧狀的切刃面，切削螺牙切削後所產生的毛邊 ’配合彎弧延伸呈弧狀的切刀面轉動時的導引作用順勢將 毛邊壓入，還可以把受該螺牙擠壓的膨脹凸起部分壓平， 使表面更力平正’有效避免毛邊、膨脹凸起與裂開等 的產生。 ' 【實施方式】 有關本新型之前述及其他技術内容'特點與功效，在 以下配合參考圓式之四個較佳實施例的詳細說明中將可 清楚的呈現。 在本新型被詳細描述之前，要注意的是，在以下的說 明内夺中’類似的元件是以相同的編號來表示。 M410803 參閱圖4、5,本新型平頭蟫碎 土 τ峭磲、4 2之第一較佳實施例包 含-桿身21、-螺旋環設於該桿身21表面的 & 一個一體連設於該桿身21上的螺頭23。 ’、 該螺頭23包括一與該桿纟21才目間隔的頂φ 231、一連 接該頂面23!與該桿身21且由該頂面231朝該桿身21漸 縮延伸的連接面233,及多數等角度相間隔地凹陷形成於該 連接面233上的切刃237,其中，該頂面231上凹陷形成有 一插置部232，而該連接面233具有一連接該頂面231的第 一連接段234、一連接該第一連接段234與該桿身21的第 二連接段235，及一形成於該第一連接段234與第二連接段 2 3 5相連接處的轉折段2 3 6。 該第一連接段234與水平面Η的夾角0 ,小於該第二連 接·^又235與水平面Η的夾角02，而所述切刀237是凹陷形 成於該連接面233的第一連接段234上。且每一切刃237 皆具有二相間隔地自該頂面231朝該桿身21方向彎弧延伸 且呈弧狀的切刃面238。 於本較佳實施例中，每一切刃面238皆是自該頂面231 底緣朝該桿身21方向彎弧延伸至該轉折段236，且由該桿 身21朝該螺頭23的頂面231視之，每一切刃面238皆是 自該頂面231底緣朝該桿身21方向繞該桿身21軸線L順 時針彎弧延伸。當然在實際應用上，每一切刃237的切刃 面238也可與該轉折段236間形成有間距（圖未示），依然可 以達成相同的功效。 再此要特別說明的是，所述切刃237除了可以概呈圖5 5 M410803 所示的多邊形外，也可以是如圖6所示概呈扇形，依然可 以達成相同的功效。 參閲圖7、8 ’當利用該平頭螺絲2鎖固一物件3時， 可以利用隨著螺牙22旋入方向轉動之所述切刃237呈弧狀 的切刃面238,切削該物件3被該螺牙22切削後所產生的 毛邊31，配合f弧延伸且呈弧狀之切刀面咖轉動時的導 引作用而能如圖In order to improve the above-mentioned shortcomings, the related art has developed a technique disclosed in the new patent of the Republic of China Announcement No. 336705, "Improvement of Flathead Screws with Cutting Edges" as shown in FIG. 2, which is improved in that the frustoconical surface 112 is formed. The majority of the triangular cutters 114 are also the sector-shaped cutting edges 115 disclosed in the "Patent Screws" invention patent of the Chinese Patent Publication No. CN1846071 of FIG. 3 to improve the cutting ability and reduce the cutting resistance. However, since the conventional cutting edge 114 or the cutting edge 5 are longitudinally extended from the top surface 111 toward the screw 12, when the flat head screw 1 is screwed into a hardwood or a structurally complex composite material, The cutting edge U4 or the cutting blade 115 is not easy to discharge the cut burrs, so that the burrs are sandwiched between the screw head 3 M410803 11 and the locking surface, thereby causing expansion and convexity at the locking surface. ^ [New content] Therefore, the purpose of the present invention is to provide a flat head screw which has a good cutting efficiency and a low cutting resistance and a smoother surface. Therefore, the novel flat head screw comprises a pinching I ^ δ body and a screw ring provided on the surface of the shaft, and a screw head integrally connected to the rod body. The screw head includes a top surface spaced apart from the shaft body, a connecting surface connecting the top surface and the shaft body and extending from the top surface toward the shaft body, and a plurality of equiangularly spaced apart recesses are formed The cutters on the connecting surface have a cutting edge surface which is curved and arcuately extending from the top surface toward the shaft body at two intervals. The utility model has the beneficial effects that the cutting edge surface of the cutting edge which is rotated in the screwing direction of the screw thread is used, and the burr generated after the cutting of the cutting screw is rotated in an arc-shaped cutting surface with the curved arc. The guiding action of the time pushes the burr in the same direction, and can also flatten the expansion convex portion pressed by the screw to make the surface more flat and effective to avoid the occurrence of burrs, expansion protrusions and cracking. [Embodiment] The foregoing and other technical contents of the present invention will be clearly described in the following detailed description of the four preferred embodiments in conjunction with the reference circle. Before the present invention is described in detail, it is to be noted that in the following description, similar elements are denoted by the same reference numerals. M410803 Referring to Figures 4 and 5, the first preferred embodiment of the present invention relates to a shaft 21, a spiral ring disposed on the surface of the shaft 21, and an integral connection The screw head 23 on the shaft 21. ', the screw head 23 includes a top φ 231 spaced apart from the shank 21, a connecting surface connecting the top surface 23 with the shaft 21 and extending from the top surface 231 toward the shaft 21 233, and a cutting edge 237 formed on the connecting surface 233 by a plurality of angles, wherein the top surface 231 is recessed to form an insertion portion 232, and the connecting surface 233 has a connecting surface 231. a first connecting portion 234, a second connecting portion 235 connecting the first connecting portion 234 and the shaft 21, and a turning portion formed at a connection between the first connecting portion 234 and the second connecting portion 235 2 3 6. An angle 0 between the first connecting portion 234 and the horizontal plane , is smaller than an angle 02 between the second connecting portion 235 and the horizontal plane ,, and the cutter 237 is formed on the first connecting portion 234 of the connecting surface 233. . Each of the blades 237 has an arcuate cutting edge surface 238 extending from the top surface 231 toward the shaft 21 at two intervals. In the preferred embodiment, each of the blade faces 238 extends from the bottom edge of the top surface 231 toward the shaft 21 to the turning section 236, and the shaft 21 faces the top of the screw head 23. The face 231 sees that each of the blade faces 238 extends clockwise from the bottom edge of the top surface 231 toward the shaft 21 about the axis L of the shaft 21 clockwise. Of course, in practical applications, the cutting edge 238 of each of the blades 237 can also be spaced from the turning section 236 (not shown), and the same effect can still be achieved. It should be particularly noted that the cutting edge 237 can be substantially fan-shaped as shown in FIG. 6 in addition to the polygon shown in FIG. 5 5 M410803, and the same effect can still be achieved. Referring to Figures 7, 8', when an object 3 is locked by the flat head screw 2, the object 3 can be cut by an arcuate cutting edge surface 238 which is rotated in the screwing direction of the thread 22. The burr 31 generated by the cutting of the screw 22 can be guided by the guiding action when the arc of the cutter is rotated and the arc-shaped cutter is rotated.
π不;丨I貞勢將毛邊31壓入，若是該物件_ 是軟、硬木材或是複合材料時，所述㈣237呈弧狀的切 刀面238更能隨著螺牙22旋入方向轉動將已被切削或已被 擠壓的毛邊31及膨脹凸起部分壓人，避免毛邊η被夹制 於該螺頭23與該物件3之間，使該物件3的表面更加平整 有效避免毛邊31、膨脹凸起與裂開等缺陷的產生。 而當該平頭螺絲2用以固定一如圖9所示具一固定孔 Μ的裝配件或金屬裝配件4(如金屬絞鏈）時，由於所述凹陷 ^成於该連接面233上的切刃攻，使該螺頭Μ可以 疋孔41齊平，避免損傷該_孔41的表面。 、π does not; 丨I贞 presses the burr 31 into, if the object _ is soft, hard wood or composite material, the (four) 237 arc-shaped cutter surface 238 can rotate with the screw 22 in the direction of screwing The burr 31 and the expanded convex portion which have been cut or pressed are pressed to prevent the burr η from being sandwiched between the screw head 23 and the object 3, so that the surface of the object 3 is more flat and effective to avoid the burrs 31. , the occurrence of defects such as expansion bulges and cracks. When the flat head screw 2 is used to fix a fitting or a metal fitting 4 (such as a metal hinge) having a fixing hole as shown in FIG. 9, the recess is formed on the connecting surface 233. The blade tapping allows the screw head to be flush with the bore 41 to avoid damage to the surface of the hole 41. ,
大致二:本新型平頭螺絲2之第二較佳實施例 述由該尸身\ 實施例相同’不相同的地方在於：所 238皆^ 1朝該螺頭23的頂面231視之，每一切刃面 ^ It ^M"21 ^ T藉此&供使用者另一種選擇0 參閱圖12、11 . 大致是與該第-較佳Γ型平頭螺絲2之第三較佳實施例 該桿身例相同’不相同的地方在於：由 Μ螺碩23的頂面231視之，每一切刀237的 M410803 ㈣φ 238皆是自該頂面231底緣朝該桿身21方向繞該桿 身21軸線L順時針彎弧延伸收斂而相互連接且與該轉折段 2曰36間形成—間距D，而使得每—切刀237概呈扇形藉此 提供使用者另一種選擇。當然在實際應用上，每一切刃 的切刀面238也可在該轉折段236相互連接，依然可以達 成相同的功效。 • #閱圖14、15,本新型平頭螺絲2之第四較佳實施例 大致是與該第三較佳實施例相同，不相同的地方在於：由 • 該桿身21朝該螺頭23的頂面231才見之，每一切刀237的 切刀面238皆是自該頂面231底緣朝該桿身21方向繞該桿 身21抽線L順時針彎弧延伸收斂而相互連接且與該轉折段 236間形成一間距D，而使得每一切刀237概呈扇形藉此 提供使用者另-種選擇。當然在實際應用上，每—切刃加 : 的切刀面238也可在該轉折段236相互連接，依然可以達 成相同的功效。 . 綜上所述，本新型平頭螺絲2利用隨著螺牙22旋入方 • 肖轉動之所述切77 237呈狐狀的切刃面238，士刀削螺牙22 切削後所產生的毛邊31，配合f弧延伸且呈弧狀之切刀面 238轉動時的導引作用順勢將毛邊31壓入，還可以把受节 螺牙22擠壓的膨脹凸起部分齡，使表面更加平整，有效/ 避免毛邊31、膨脹ώ起與裂開等缺陷的產生故破實能達 成本新型之目的。 惟以上所述者，僅為本新型之較佳實施例而已，當不 能以此限定本新型實施之範圍，即大凡依本新型申請專利 7 M410803 ，圍及新型說明内容所作之簡單的等效變化與修挪 屬本新型專利涵蓋之範圍内。 穿仍 【圖式簡單說明】 圖1是一立體圖，說明一具切削刃的平頭螺絲. 、，圖2是—立體圖，說明中華民國公告第336705號「 切削刀之平頭螺絲改良」新型專利： 〜具 圖…剖視圖，說明中華人民共和國公生 1846071冑「埋頭螺絲」發明專利所揭露的平_; 施例圖4是-側視圖，說明本新型平頭螺絲的第一較佳實 圖5是一剖視圖，輔助說明圖4 ; 圖6是一剖視圖，說明贫筮 _ -態樣 第一較佳實施例之切刀的另 圖7是一剖視圖，說明贫筮 X. ., _ 時的態樣； ⑽第-較佳實施例鎖固—物件 圖8是-剖視圖，說明所述切刀切削毛邊的態樣； 圖9是一剖視圖，說明該 件時㈣# 校佳實把例鎖固一裝配 施例圖Μ是—側視圖’說明本新型平頭螺絲的第二較佳實 施例； 圓11疋一剖視圖，辅助說明圖1 〇 ;圖12是一側視圖，說明本新型平頭螺 絲的第三 實 M410803 圖13是一剖視圖，輔助說明圖12 : 圖14是一側視圖，說明本新型平頭螺絲的第四較佳實 施例；及 圖15是一剖視圖，輔助說明圖14。 M410803 【主要元件符號說明】 2 ....... •…平頭螺絲 237 ·. ……切刃 21…… •…桿身 238 · .....切刃面 Χψ EC. ^ ..... ζΖ..... 螺才 J) .....物1干 -2 1____ .....ί. 15..... 螺頭 j) 1 -=0 3¾ 231… •…頂面 4 ..... ••…裝配件 232 ···. •…插置部 41 .... ••…固定孔 233 ··· •…連接面 Η…… .....水平面 234 …. …·第一連接段 Θ ! ' Θ 2夹角 235 ··· …第二連接段 L •… ……軸線 236 ···· …轉折段 D ••…間距 10Substantially two: The second preferred embodiment of the present type of flat head screw 2 is the same as the embodiment of the body. The difference between the two is that the 238 are all facing the top surface 231 of the screw head 23, and each of the blades Face ^ It ^ M " 21 ^ T by this & another choice for the user 0 see Figure 12, 11 . It is roughly the third preferred embodiment of the first - preferred 平 type flat head screw 2 The same 'different' is that: from the top surface 231 of the snail 23, the M410803 (four) φ 238 of each of the knives 237 is around the axis 21 of the shaft 21 from the bottom edge of the top surface 231 toward the shaft 21 The clockwise arcs extend to converge and are interconnected and form a spacing D from the transition segments 2, 36 such that each cutter 237 is generally fanned thereby providing the user with another option. Of course, in practical applications, the cutting faces 238 of each of the blades can also be connected to each other at the turning section 236, and the same effect can still be achieved. • #图图14,15, the fourth preferred embodiment of the present type of flat head screw 2 is substantially the same as the third preferred embodiment, and the difference is that: the shaft 21 faces the screw head 23 The top surface 231 is visible, and the cutter surface 238 of each of the knives 237 is extended clockwise from the bottom edge of the top surface 231 toward the shaft 21 in a direction of the shaft 21, and is connected to each other and connected to each other. A spacing D is formed between the transition segments 236 such that each of the knives 237 is generally fanned thereby providing the user with an alternative. Of course, in practical applications, the cutter face 238 of each cutting edge can also be connected to each other at the turning section 236, and the same effect can still be achieved. In summary, the present type of flat head screw 2 utilizes a cutting edge surface 238 which is shaped like a knuckle with the threaded shaft 22 being rotated into a shawl 22, and the burr generated by the cutting of the thread 22 is cut. 31. The guiding action when the cutter surface 238 which is extended by the arc and extends in an arc shape presses the burr 31 in the same direction, and the expansion convex portion which is pressed by the screw portion 22 can be partially aged to make the surface smoother. Effective / avoiding the occurrence of defects such as burrs 31, expansion and cracking, etc., can achieve the purpose of the present invention. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change made by the new application patent 7 M410803. And within the scope covered by this new patent. Wear still [Simplified description of the drawings] Figure 1 is a perspective view of a flat-headed screw with a cutting edge. Fig. 2 is a perspective view showing the new patent of the Republic of China Announcement No. 336705 "Modification of the flat head screw of the cutter": Fig. 4 is a cross-sectional view showing the flat surface disclosed in the invention patent of the "Embedded Screw" of the People's Republic of China, 1 846 071; FIG. 4 is a side view showing the first preferred embodiment of the flat head screw of the present invention. FIG. 6 is a cross-sectional view showing another example of the cutting blade of the first preferred embodiment of the barium--------------------------------------------- Fig. 8 is a cross-sectional view showing the state of cutting the burr of the cutter; Fig. 9 is a cross-sectional view showing the case of the member (4) Figure 2 is a side view showing a second preferred embodiment of the present type of flat head screw; a cross-sectional view of a circle 11 ,, which is an explanatory view of Fig. 1; Fig. 12 is a side view showing a third solid M410803 drawing of the flat head screw of the present invention. 13 is a cross-sectional view, and the assistance is illustrated in Figure 12: Figure 14 is a side elevational view showing a fourth preferred embodiment of the present type of flat head screw; and Figure 15 is a cross-sectional view for assistance in explaining Figure 14. M410803 [Main component symbol description] 2 ....... •... Flat head screw 237 ·....... Cutting edge 21... •...Rod body 238 · ..... Cutting edge Χψ EC. ^ ... .. ζΖ..... 螺才J) .....物1干-2 1____ ..... ί. 15..... screw head j) 1 -=0 33⁄4 231... •... top Face 4 ..... ••... Assembly 232 ···. •...Interposing part 41 .... ••...Fixed hole 233 ··· •...Connecting surface Η...... .....Horizontal 234 .... ...·The first connecting section Θ ! ' Θ 2 angle 235 ··· ...the second connecting section L •... ......axis 236 ···· ... turning section D ••... spacing 10