1266004 九、發明說明： 【發明所屬之技術領域】 特別是關於一種用於薄鐵 緊密鎖結薄鐵板的螺絲。 本發明係提供一種薄板螺絲， 板的螺絲’其具有缚形頭部並且能 【先前技術】1266004 IX. Description of the invention: [Technical field to which the invention pertains] In particular, it relates to a screw for thin iron tightly locking a thin iron plate. The present invention provides a thin plate screw, a screw of a plate having a binding head and capable of [prior art]
在包含汽車、家電及建築等各種工業上，薄形的鐵 板是-種趨勢，因為它能降低成本且減輕重量。然而，薄形 鐵板觸狀_縣部份會姆降低，導致_力往往不 夠充實。再者，為了避免_如家電、建築表面上的螺絲過 於明顯而破壞美觀性，在許多應用上，螺絲頭部也有薄形化 的要求，因而，第—圖的細螺絲1廣泛使用在薄鐵板的結 合上。但是，該薄形化的要求卻使得薄形聯Π1上的承孔12 需要深入到桿部13上端，才驗供轉軟狀夠的接觸面用 从傳達轉矩，HJ而造成鄰接在頭部底面16的螺牙14之齒根 (牙底）外徑會與該承孔_ 121形成過近的距離，進而導 致頭部11下側（如標號15所指位置）在施力鎖合的過程中 易發生斷裂或是在鎖完之後可能產生氫脆性斷頭現象。 解決上述易斷頭問題的一種習用扁頭螺絲2，如第二圖所 不’係在頭部21的下側製造一錐狀的大倒角25肖以和承孔 22沬入桿部的内端221保持一安全距離。然而，桿部23上的 累牙24不此輾到該螺絲頭部21下側，造成螺絲頭 面26常無法如鐵板來鮮。 、 _ 5 1266004 解決上述易斷頭問題的另一種習用扁頭螺絲3，如第三圖 所示，係在頭部31的下側空出一段無螺牙的區域35用以和 承孔32的内端321可保持一安全距離。然而，由於頭部 下侧的桿部33上無螺牙34，當該螺絲3鎖到該無螺牙區域 35時，可能發生空轉而無法鎖緊。 緣此，應該有需要另一種不同結構的螺絲產生用以提供 薄鐵板鎖結，並期具有防斷頭之功能及可提昇締結能力者。 > 【發明内容】 本發明人係一從事螺絲設計製造多年之業者，有鑑於 此，遂悉心加以研究分析及實驗設計，於今有本發明產生， 並、、二λ際之測試得註能達到預期之效果。 本發明之主要目的在提供一種薄板螺絲，該螺絲具有一 可緊密鎖結薄鐵板的締結區，且該締結區同時能避免螺絲頭 部在鎖合過程中或是鎖完之後發生斷裂。 依據本發明形成的螺絲，係包含一帶有螺牙的桿部及形 $在該桿部—端的—扁平頭部’該桿部具有—插人端及一結 合端’而該頭部上具有-深人桿部結合端中的承孔；特徵在 於’該桿部之結合端上形成一底部具有斜面倒角或弧形倒角 的脹大締結區，該脹大賴區_頂外徑（牙外徑）約略等於 $略大於桿部的齒頂雜（科徑），且脹大締結區的齒根外 么（牙底技）為大於桿部齒根外徑（牙底徑）5%〜25%，同時該脹 大締結區的長度可提供輾製至少—螺牙，而能緊密缔結薄鐵: 6 .1266004 板及避免螺絲頭部產生斷裂者 在一較佳的實施例中，該脹大締結區的形成，係在對該 螺絲胚件打頭時，並在其頭部底面下娜造—沿徑向服開的 脹大區，鎌大區的外徑為大於桿部的外徑5%〜25%，且該服 大區的長度最好比承孔深人桿部的距離略大，而能充分涵蓋 深入桿部的承孔部分，又該脹大區底部形成—斜面倒角，以 利輾製螺牙至頭部底面處者。In various industries, including automobiles, home appliances, and construction, thin iron plates are a trend because they reduce costs and reduce weight. However, the thin iron plate touches the _ county part, which causes the _ force to be insufficient. In addition, in order to avoid _ such as home appliances, the screws on the surface of the building are too obvious to destroy the aesthetics, in many applications, the screw head also has a thinning requirement. Therefore, the thin screw 1 of the first figure is widely used in thin iron. The combination of the boards. However, the requirement for the thinning is such that the bearing hole 12 on the thin joint 1 needs to penetrate deeper into the upper end of the rod portion 13, and the contact surface for the soft transition is used to transmit the torque, HJ is caused to abut the head. The outer diameter of the root (dental) of the thread 14 of the bottom surface 16 may form a close distance with the bearing hole _ 121, thereby causing the lower side of the head 11 (as indicated by the reference numeral 15) to be easily applied during the force-locking process. A breakage occurs or hydrogen brittle fracture may occur after the lock is completed. A conventional flat head screw 2 for solving the above-mentioned frangible head problem, as shown in the second figure, is formed on the lower side of the head portion 21 to form a tapered large chamfer 25 and the through hole 22 is inserted into the rod portion. End 221 maintains a safe distance. However, the teeth 24 on the stem portion 23 are not caught on the underside of the screw head portion 21, so that the screw head face 26 is often not as fresh as the iron plate. _ 5 1266004 Another conventional flat head screw 3 which solves the above-mentioned problem of frangible head, as shown in the third figure, is a snail-free area 35 for the lower side of the head 31 for the bore 32 The inner end 321 can maintain a safe distance. However, since there is no thread 34 on the stem portion 33 on the lower side of the head, when the screw 3 is locked to the threadless portion 35, idling may occur and the lock may not be possible. Therefore, there should be a screw that needs another structure to provide a thin iron plate lock, and to have the function of preventing breakage and improving the ability to conclude. > [Summary of the Invention] The inventor of the present invention is engaged in the design and manufacture of screws for many years. In view of this, the research and analysis and experimental design have been carefully carried out, and the present invention has been produced, and the test of the two λ can be achieved. Expected effect. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a thin plate screw having an engagement region for tightly locking a thin iron plate, and which avoids breakage of the screw head during or after the locking. The screw formed according to the present invention comprises a rod portion with a thread and a flat head portion at the end of the rod portion. The rod portion has a insertion end and a joint end and the head has a - a bearing hole in the joint end of the deep mandrel; characterized in that: 'the joint end of the stem portion forms a swollen constriction zone having a bevel chamfer or a curved chamfer at the bottom, the inflated zone_top outer diameter (tooth) The outer diameter is approximately equal to $ slightly larger than the tip of the rod (caliber), and the root of the bulging area is larger than the outer diameter of the root (bottom diameter) 5%~ 25%, while the length of the expansion-contracting zone can provide at least a screw, and can tightly bond the thin iron: 6.1266004 plate and avoid cracking of the screw head. In a preferred embodiment, the The formation of the expansion joint zone is made when the head of the screw is headed, and under the head surface of the head, the expansion zone is opened in the radial direction, and the outer diameter of the large area is larger than the outer portion of the stem. The diameter is 5%~25%, and the length of the service area is preferably slightly larger than the distance of the deep hole of the bearing hole, and can fully cover the hole portion of the rod. Should the swelling region is formed at the bottom - chamfer to facilitate the thread rolling system to the head's bottom surface.
在-實施例中，其中，該螺絲桿部的插入端係一尖尾部， 或者可以是鑽頭形式的鑽尾部或是平頭形式的平尾部。 關於本發明之其他目的、優點及特徵，將可由以下較佳 實施例的詳細說明並參照所附圖式來了解。 【實施方式】 —有關本發_構造設計，練由僅為例子但翻以限制 的實施例並參照所附圖式作進一步說明： —苓閲弟四圖所示，係表示依據本發明構成之螺絲4第― 實施例’該螺絲4包含-桿部41及形成在該桿部41 一 頭442 *第五_表示該獅4尚未輾上螺牙的胚件i /亥桿部41具有一插入端411及一可提供締結該物件的結 合端412 ;在本實施例中，該插人端411形成—尖尾部，料 知，碩形式的鑽尾部或是平娜式的平尾部可用來替代該尖 尾部，又自該桿部41之結合端412至接近插入端411處，^ 桿部41外觸輾有螺牙43，該螺牙43 _式、牙距或牙深 7 1266004 係依照習知的標準來製造，並無特別限制。 顧部42係-薄形的射頭，其—體地自桿部的結合端 仍延伸形成，並具有一頂面421與一底面422;_開口位在 顧面421的承孔423係沿軸向設在頭部財，該承孔423 =内端424係穿過底面422深入桿部41 一給定的距㈣，使 得該承孔奴夠的接觸深度用以傳達轉動工具（ 的轉矩，·又該承孔423可岐 ”） # τ于木子、四角、六角、梅 化或是其它型式的習知孔穴，且祕制為财_狀型態。 本發明進一步在該桿部41之結合端412形成一頂部鄰接 頭部底面422且底部具有倒角441的脹大締結區44，在該脹 大締結區4上同樣輾有螺牙43，且該脹大缔結區44的齒根外 徑（牙底徑）D2為大於桿部41的齒根外徑（牙底徑）加約 5%〜25%，又該脹大締結區44的長度Τ2最好等於或是略大於 承孔内端424深入桿部41的距離τ卜且該脹大締結區私的 長度Τ2至少要大於-個螺牙43的牙距用以輕製至少一螺牙 43 ’在本實施财’該脹场結區44係具備二螺牙43的牙 距長度。 配合第五讀示，祕大_區44 _彡成，絲對該螺 絲胚件40打頭時，並在其頭部42底面似下側製造一沿經 向脹開的脹大區4G1 (含長度及直徑），該脹大區肌外捏⑽ 為大於桿部41的外徑D1約5½%，且該脹大區4G1的長度 1266004 T2最好比承孔423深入桿部41的距離Ή略大，而能充分涵 盍洙入桿部41的承孔423部分，又該脹大區4〇1底部形成一 斜面倒肖441，使得第四圖的螺彳43能輕易地輾至頭部42 的底面422處，而製造出本發明的脹大締結區44。 参閱第六圖’顯示依據本發明形成的螺絲4以尖尾部411 開始鎖入上、下薄形鐵板51、52之間的狀態（圖中未顯示插 入承孔423的轉動工具）；参閱第七圖，顯示該螺絲4鑽入到 .服大締結區44位置，在此狀態時，逐漸擴大的斜面倒角441 接觸薄職板5卜52，並產生向外娜擠的力量使薄形鐵板 5卜52依螺絲鎖人方向開麟開；参閱第人圖，顯示該螺絲 4鎖緊薄形鐵板5卜52的狀態，即，該螺絲頭部42的底面 422鎖緊在上薄形鐵板51的頂㊣犯，在此狀態時，薄形鐵 板51 52的牙孔内壁512、522受斜面倒角441及脹大締結 > "4 __向螺絲鎖入方向一側擴張（圖中係向下擴張）， 使得該脹大締結區44上之螺牙43 (包含牙山與牙底）與薄形 鐵板51 52的咬合區域會增加，因❿，有效創造出力口強的締 結能力。 以#1〇或4. 8mm(齒頂外徑）為例，本發明所設計的螺絲4 以鎖結0.6mm + 〇.6腿之上、下薄形鐵板5卜犯作測試後， 付到需要45公斤的反轉扭力才能鬆脫(習用者通常在22公 斤反轉拉力就會鬆脫），明顯地增加一倍以上的反轉扭力，可 9 1266004 有效提高_的能力；此外，由於該脹场結區44的齒根外 徑（牙底徑）D2至少等於或大於桿部41 _根外徑（牙底 徑)D4約5%〜25%，使得結合端412外徑（即頭部42下侧）可 和深入該結合端412中的承孔内端424保持一安全距離，而 能有效避免螺絲頭部42在鎖合過程中或是在鎖完之後產生斷 裂。 第九圖、第十圖分別顯示本發明第二實施例及第三實施 例（圖中附上和第一實施例說明者相同之標號供參考）；其 中，與第一實施例不同的部份在於第九圖之插入端411係形 成如鑽頭形式的鑽尾部，而第十圖插入端411係形成平頭形 式的平尾部。 前述僅是.對本發明之較佳實施例作說明，並無用以限制 本發明其它實施例，例如，已描述的脹大締結區44長度U 雖然最好係等於或是略大於承孔内端424深入桿部41的距離 Τ1但在足夠涵盍承孔423深入桿部41的部分及足夠輾製— 螺牙43的原則下，也可略小於承孔内端424深入桿部41的 距離τι;另外，該脹大締結區底部441形成的倒角不限定為 斜面，也可以是弧形。是以，對於熟悉此項技藝人士可作之 明顯替換與修改，仍將併入於本創作主張的專利範圍内。 綜上所述，本發明係發明人悉心研究並經實際試作而首 先創獲者，極具進步性，因此，本發明應已符合發明專利之 1266004 申叫要件，乃具文提出申請，謹請惠予審查，並早日賜准專 利，至感德便。 【圖式簡單說明】 第一圖係習用一扁頭螺絲的示意圖； 第二圖係習用另一扁頭螺絲的示意圖；In an embodiment, wherein the insertion end of the screw shaft portion is a pointed tail, or it may be a drill tail in the form of a drill bit or a flat tail portion in the form of a flat head. Other objects, advantages and features of the invention will be apparent from the description of the appended claims appended claims. [Embodiment] - The present invention relates to an embodiment of the present invention, which is exemplified by the following examples and is further described with reference to the accompanying drawings: Screw 4 - Embodiment 'The screw 4 includes a rod portion 41 and a head portion 442 formed at the rod portion 41. The fifth_ indicates that the lion 4 has not yet been threaded. The blank member 41 has a insertion end. 411 and 1 may provide a binding end 412 for concluding the object; in the embodiment, the insertion end 411 forms a pointed tail, and it is known that a drill tail or a flat tail of the flat type may be used instead of the tip. The tail portion is further from the joint end 412 of the rod portion 41 to the insertion end 411, and the rod portion 41 is externally touched with a thread 43 which is according to a conventional method. The standard is manufactured without particular limitation. The Gu Department 42 series-thin-shaped shot head is formed integrally from the joint end of the rod portion and has a top surface 421 and a bottom surface 422; the opening is located at the bearing hole 423 of the surface 421 along the shaft To the head, the through hole 423 = the inner end 424 passes through the bottom surface 422 and penetrates the rod portion 41 by a given distance (4), so that the depth of contact of the bearing hole is sufficient to convey the torque of the rotating tool. · The bearing hole 423 can be 岐") # τ in the wood, the four corners, the hexagon, the mei, or other types of conventional holes, and the secret is a _ shape. The invention is further combined in the shank 41 The end 412 forms a bulging constriction region 44 with a top abutting the bottom surface 422 of the head and a chamfer 441 at the bottom, on which the thread 43 is also encased, and the root of the inflated concluding region 44 is outside the root The diameter (bottom diameter) D2 is greater than the outer diameter (bottom diameter) of the root portion of the stem portion 41 by about 5% to 25%, and the length Τ2 of the swelling and contracting region 44 is preferably equal to or slightly larger than the inner diameter of the socket. The end 424 is deep into the distance τ of the shank portion 41 and the length Τ2 of the bulging contracting region is at least greater than the pitch of the teeth 43 for lightly at least one thread 43' in the present The '44' of the expansion field has the pitch length of the second screw 43. In conjunction with the fifth reading, the secret _ area 44 _ 彡, the wire heading the screw blank 40, and in its head The bottom surface of the bottom surface of the 42 is formed with a swollen region 4G1 (including length and diameter) which is expanded in the warp direction, and the extramuscular pinch (10) of the swollen region is greater than the outer diameter D1 of the stem portion 41 by about 51⁄2%, and the swollen region The length of the 4G1 1266004 T2 is preferably slightly larger than the distance from the through hole 423 to the rod portion 41, and can fully cover the portion of the bearing hole 423 of the rod portion 41, and the bottom portion of the expansion portion 4〇1 forms a sloped surface. Shaw 441, so that the screw 43 of the fourth figure can be easily smashed to the bottom surface 422 of the head 42 to produce the expansion joint region 44 of the present invention. Referring to the sixth figure 'showing the screw 4 formed according to the present invention The state in which the pointed tail portion 411 is locked between the upper and lower thin iron plates 51, 52 (the turning tool for inserting the bearing hole 423 is not shown); referring to the seventh figure, the screw 4 is drilled into the service. The location of the large confinement area 44, in this state, the gradually expanding bevel chamfer 441 contacts the thin vocational board 5 Bu 52, and produces the force of outward squeezing to make the thin iron plate 5 The wire locker is opened in the direction of the wire; referring to the figure of the person, the state of the screw 4 is locked to the thin iron plate 5, 52, that is, the bottom surface 422 of the screw head 42 is locked on the upper thin iron plate 51. In this state, the inner walls 512, 522 of the thin iron plate 51 52 are chamfered by the bevel 441 and the expansion is converged ><4 __ is expanded toward the side of the screw locking direction (in the figure) The downward expansion) causes the occlusal area of the thread 43 (including the shank and the bottom of the tooth) and the thin iron plate 51 52 on the inflation-contracting region 44 to increase, thereby effectively creating a strong binding ability. Taking #1〇 or 4.8mm (outer diameter of the tip) as an example, the screw 4 designed by the present invention is bonded after the test is performed by locking the 0.6mm + 〇.6 leg and the lower thin iron plate 5 It takes 45 kg of reverse torque to loosen (the normal person usually loosens when the reverse thrust is 22 kg), which obviously doubles the reverse torque, and 9 1266004 can effectively improve the ability of _; The root outer diameter (bottom diameter) D2 of the swollen field junction region 44 is at least equal to or greater than about 5% to 25% of the outer diameter (bottom diameter) D4 of the stem portion 41, such that the outer diameter of the joint end 412 (ie, the head) The lower portion of the portion 42 can maintain a safe distance from the inner end 424 of the socket in the joint end 412, and can effectively prevent the screw head 42 from being broken during the locking process or after the locking is completed. The ninth and tenth embodiments respectively show the second embodiment and the third embodiment of the present invention (the same reference numerals as those in the first embodiment are attached for reference); wherein the portion different from the first embodiment The insertion end 411 in the ninth diagram forms a drill tail in the form of a drill bit, and the tenth insertion end 411 forms a flat tail in the form of a flat head. The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit other embodiments of the present invention. For example, the length U of the inflated constriction zone 44 described above is preferably equal to or slightly larger than the inner end 424 of the bore. The distance Τ1 of the rod portion 41 is deep enough to be smaller than the distance from the inner end 424 of the socket hole 411 to the rod portion 41 under the principle that the portion of the shank portion 423 is sufficient to cover the rod portion 41 and the threaded rod 43 is sufficient; Further, the chamfer formed by the bottom portion 441 of the inflation-inducing region is not limited to a slope, and may be curved. Therefore, obvious substitutions and modifications to those skilled in the art will still be incorporated in the scope of the patent claimed herein. In summary, the present invention is intensively researched by the inventors and firstly created by actual trials, and is highly progressive. Therefore, the present invention should have met the requirements of the invention patent 1266004, which is an application for the application. Review and give patents as soon as possible. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic view of a flat head screw; the second figure is a schematic view of another flat head screw;
第二圖係習用再一扁頭螺絲的示意圖； 第四醜林㈣帛—實補的平面圖；The second picture is a schematic diagram of the use of a flat head screw; the fourth ugly forest (four) 帛 - the plan of the real complement;
^五圖顯示第四圖之_尚未輾上螺牙_件示意圖； 第、圖”、肺第四圖之螺絲開始鎖合二薄形鐵板的示意圖； 第七圖.4示第六圖的螺絲鑽人到脹大締結區位置的示意圖 ^八圖顯示第六圖的螺絲鎖緊二薄形鐵板的示意圖；。 第九圖顯示本發明第二實施例的示意圖；及 第十圖顯示本發明第三實施例的示意圖。 【主要元件符號說明】 1'2' 3、螺絲 12、 22、32、承孔 13、 23、33、桿部 11、21、31、頭部 121、221、321、内端 14、24、34、螺牙 16、底面 26、底面 25、倒角 4、螺絲 401、服大區 411、尖尾部 35、無螺牙區域 40、 胚材 41、 桿部 42、 頭部 1266004 42卜頂面 422、底面 423、承孔 424、内端 43、螺牙 44、脹大締結區 44卜倒角 5卜52、薄形鐵板 511、頂面 512、522、内壁^The five figures show the fourth figure _ has not yet smashed the thread _ piece diagram; the first picture, the figure of the lungs, the screw of the fourth figure begins to lock the two thin iron plates; the seventh picture shows the sixth figure Schematic diagram of the position of the screw driller to the expansion joint zone ^8 is a schematic view showing the screw lock of the thin iron plate of the sixth figure; the ninth figure shows a schematic view of the second embodiment of the present invention; and the tenth figure shows the present BRIEF DESCRIPTION OF THE THIRD EMBODIMENT OF THE INVENTION [Main element symbol description] 1'2' 3. Screws 12, 22, 32, sockets 13, 23, 33, rods 11, 21, 31, heads 121, 221, 321 , inner end 14, 24, 34, thread 16, bottom surface 26, bottom surface 25, chamfer 4, screw 401, large area 411, pointed tail 35, threadless area 40, embryo material 41, rod portion 42, head 1266004 42 top surface 422, bottom surface 423, bearing hole 424, inner end 43, thread 44, expansion and contraction area 44 chamfer 5 52, thin iron plate 511, top surface 512, 522, inner wall
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