M332141 八、新型說明： 【新型所屬之技術領域】 本新型是有關於一種鑽尾螺絲，特別是指—種可以 攻鑽孔的鑽尾螺絲。 .【先前技術】 參閱圖卜以一般鑽尾螺、絲！（即自攻螺絲）為例，主^ 包含有一螺頭U及一螺釘12。該螺釘12具有一釘尖 及形成在-外表面且依循一螺旋線延伸的一螺彳122。藉退 ，只須以該虫綺12對準一物料2，就可以在施力扭轉_ 尾螺^ 1的過程中，破穿該物料2並鑽攻形成—螺孔21; 惟，前述構造雖然可以達到螺穿該物料2的功效，卻於雄 際使用時仍存有以下缺失而亟待解決·· ^ 由於該螺針12破穿該物料2後，是同步攻絞該孔洞一 内表面形成螺孔2卜因此，在該螺釘12旋轉的過程中，往 二曰口為，亥釘X 121所鑽孔洞的孔徑小於該螺釘q最大外 徑，使该螺牙121與該物料2者 竹Ζ在只的接觸，且接觸明顯面 積較大，相對提昇該螺釘12攻絞該螺孔21時遭遇的阻力 所以’必須加大施力才能克服阻抗，不但費日寺、， 且會造成較朗孔21時的目肢不便。 、 【新型内容】 因此’本新型之目的， 暢性及實用性的鑽尾螺絲。 於疋，本新型的鑽尾螺 及一擴孔段。該鑽牙段具有 即在提供一種可以提昇攻牙順 絲包含一鑽牙段、一攻牙段， 一釘尖，及形成在一外表面且 M332141 依循一螺旋線延伸的一第一螺牙。該攻牙段具有形成在一 外表面且依循該螺旋線延伸的一第二螺牙。該擴孔段是鄰 接該鑽牙段與該攻牙段，且最大外徑不大於該攻牙段的最 大外徑，並具有形成在一外表面的至少二絞翼片。 本新型的功效是能以該等絞翼片預先擴大該鑽孔孔徑 卜低攻牙呤的阻力，並提昇攻牙時的順暢性及實用性。 【實施方式】M332141 VIII. New description: [New technical field] The new type is related to a type of self-drilling screw, especially a type of self-drilling screw. [Prior Art] Refer to Figure Bu to general drill tail screw, silk! For example, the self-tapping screw includes a screw head U and a screw 12. The screw 12 has a spike and a threaded 122 formed on the outer surface and extending along a spiral. To retreat, it is only necessary to align the material 2 with the worm 12, and it is possible to break through the material 2 and drill and form a screw hole 21 during the process of applying the force to twist _ the tail screw ^1; The effect of screwing through the material 2 can be achieved, but there are still the following defects in the male use and need to be solved. · ^ Since the screw 12 breaks through the material 2, the inner surface of the hole is synchronously tapped to form a snail. Therefore, during the rotation of the screw 12, the diameter of the hole drilled into the hole N 121 is smaller than the maximum outer diameter of the screw q, so that the screw 121 and the material 2 are bamboo rafts. In the only contact, and the contact area is large, the resistance encountered when the screw 12 taps the screw hole 21 is relatively increased. Therefore, it is necessary to increase the force to overcome the impedance, not only the Fei Ri Temple, but also the Lang Lang. At 21 o'clock, the limbs are inconvenient. [New content] Therefore, the purpose of this new type, the smoothness and practicality of the tail screw. Yu Yu, the new type of drill tail screw and a reaming section. The drill segment has a first thread that provides a drill tap to include a drill segment, a tap segment, a spike, and an outer surface and the M332141 extends along a spiral. The tapping segment has a second thread formed on an outer surface and extending along the spiral. The reaming section is adjacent to the drill section and the tapping section, and has a maximum outer diameter not greater than a maximum outer diameter of the tapping section, and has at least two strands formed on an outer surface. The utility model has the advantages that the resistance of the drill hole aperture and the low tapping ridge can be pre-expanded by the slats, and the smoothness and practicability of the tapping can be improved. [Embodiment]
有關本新型之4述及其他技術内容、特點與功效，在 以下配合茶考圖式之一較佳實施例的詳細說明中，將可清 楚的呈現。 參閱圖2、圖3 ’本新型鑽尾螺絲3的—較佳實施例包 含有一鑽牙段31、-攻牙段32 ’及一擴孔段33。 邊鑽牙段31具有_針尖311，及形成在_外表面阳 且依循-螺旋線延伸的—第一.螺牙313。該鑽牙段 尖錐體。 该攻牙段32具有形成在一外表面321且依循該螺旋線 延伸的一第二螺牙322。 该擴孔段33是鄰接該鑽牙段31與該攻牙段32，且最 :外徑不大於該攻牙段32的最大外徑，並具有相對形成在 一外表面331的二絞翼片332。該等絞翼片说的厚度是尺 :::一且表面積是由鄰近該鑽牙段”的—端向鄰 "牙& 32的另一端由小漸大擴張。 參閱圖4、圖5，當該鑽牙段31以該釘尖3ιι對準 科4’就可以在施力扭轉該鑽尾螺絲3的過程中，以該第— 6The description of the novel and other technical contents, features and effects of the present invention will be clearly described in the following detailed description of a preferred embodiment of the tea test. Referring to Figures 2 and 3, the preferred embodiment of the novel self-drilling screw 3 includes a drill segment 31, a tapping segment 32' and a reaming segment 33. The side drilling section 31 has a _ needle tip 311 and a first thread 313 formed on the outer surface of the outer surface and extending along the helix. The drill segment has a pointed cone. The tapping segment 32 has a second thread 322 formed on an outer surface 321 and extending along the helix. The reaming section 33 is adjacent to the drill section 31 and the tapping section 32, and most: the outer diameter is not greater than the maximum outer diameter of the tapping section 32, and has two twisted fins formed on an outer surface 331 332. The thickness of the slats is a ruler::: and the surface area is expanded by a small enlargement from the other end of the end adjacent to the teeth & 32. See Figure 4, Figure 5. When the drill segment 31 is aligned with the nail tip 3 ι by the nail tip 3 ι, the rivet screw 3 can be twisted during the application of the drill screw 3
、所述者’僅為本新型之較佳實施例而已，當不 能以此限定本新创每 〜 ^ I只知之乾圍，即大凡依本新型申請專利 粑圍及新型6兄明内容所作之簡單的等效變化與修飾，皆仍 屬本新型專利涵蓋之範圍内。 M332141 螺牙阳破穿該物料4形成—鑽孔41，此時，隨著該鑽牙 I又31持績殊入該物料4，該擴孔段33會以 、，·、 絞削該鑽孔41 -内表面411，使該鑽孔41擴大^片332 :广隨著該擴孔段33持續深入該物料二攻牙段 隙使二321會與該鑽孔41内表面411間形成有一極小間 '、螺牙322在減少與該鑽孔41内表面4ιι接觸 面積與《料4阻抗的情形下，鑽攻該鑽孔* 形成-螺孔。 ^ 1 康料可知，本新型之鑽尾螺絲具有下列優點及功 ▲本新型能以該等絞翼片332預先擴大該鑽孔41孔徑， 又32在減少與該鑽孔41内表面411接觸面積與該 ;斗阻抗的情形下，降低攻牙時的阻力，不但省時、省 力，且能提昇攻牙時的順暢性及實用性。 7 M332141 【圖式簡單說明】 圖1是一剖視圖，說明一般的鑽尾螺絲； 圖2是一正視圖，說明本新型一鑽尾螺絲的一較佳實 施例； 圖3是該較佳實施例的一側視圖； 圖4是該較佳實施例破穿一物料的一剖視圖；及 圖5是該較佳實施例鑽攻一螺孔的一剖視圖。 M332141 【主要元件符號說明】 3 ..........鑽尾螺絲 31…···…鑽牙段 311 .......尖端 312 .......外表面 313 .......第一螺牙 32.........攻牙段 外表面 321 322 33… 331 3324… 41·· 411 411 第二螺牙 擴孔段 外表面 絞翼片 物料 鑽孔 内表面The above is only a preferred embodiment of the present invention. When it is not possible to limit the creation of each of the new ones, the general purpose of the application is based on the content of the new patent application and the new 6 brothers. Simple equivalent changes and modifications are still within the scope of this new patent. M332141 threading teeth break through the material 4 to form a borehole 41. At this time, as the drill bit I and 31 have a special achievement in the material 4, the reaming section 33 will be used to drill the hole. 41 - inner surface 411, the hole 41 is enlarged 332: wide as the reaming section 33 continues deep into the gap of the material, the two 321 will form a small space with the inner surface 411 of the bore 41 ', the thread 322 reduces the area of contact with the inner surface of the bore 41 and the "impedance of the material 4, drills the hole* to form a screw hole. ^ 1 It is known that the self-drilling screw has the following advantages and advantages. The present invention can pre-expand the diameter of the bore 41 with the strands 332, and reduce the contact area with the inner surface 411 of the bore 41. In the case of the bucket impedance, the resistance at the time of tapping is reduced, which not only saves time and effort, but also improves the smoothness and practicability of the tapping. 7 M332141 [Simplified Schematic] FIG. 1 is a cross-sectional view showing a general drill screw; FIG. 2 is a front view showing a preferred embodiment of the drill collar screw of the present invention; FIG. 3 is a preferred embodiment. Figure 4 is a cross-sectional view of the preferred embodiment breaking through a material; and Figure 5 is a cross-sectional view of the preferred embodiment of the drill tapping a screw hole. M332141 [Description of main component symbols] 3 ..........Drilling screws 31...···...Drilling section 311 .......Tip 312 .......Outer surface 313 .......the first thread 32.........the outer surface of the tapping section 321 322 33... 331 3324... 41·· 411 411 the outer surface of the second threaded reaming section Material drilling inner surface