TW425460B - Fastening screw - Google Patents

Fastening screw Download PDF

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Publication number
TW425460B
TW425460B TW088116088A TW88116088A TW425460B TW 425460 B TW425460 B TW 425460B TW 088116088 A TW088116088 A TW 088116088A TW 88116088 A TW88116088 A TW 88116088A TW 425460 B TW425460 B TW 425460B
Authority
TW
Taiwan
Prior art keywords
screw
thread
ventral
angle
scope
Prior art date
Application number
TW088116088A
Other languages
Chinese (zh)
Inventor
Gottfried Koenig
Original Assignee
Ejot Verbindungstech Gmbh & Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE1997132652 external-priority patent/DE19732652A1/en
Priority claimed from DE1997132636 external-priority patent/DE19732636A1/en
Priority claimed from DE1997132615 external-priority patent/DE19732615A1/en
Priority claimed from PCT/EP1998/004720 external-priority patent/WO1999006719A1/en
Priority claimed from PCT/EP1998/004719 external-priority patent/WO1999006715A2/en
Application filed by Ejot Verbindungstech Gmbh & Co filed Critical Ejot Verbindungstech Gmbh & Co
Application granted granted Critical
Publication of TW425460B publication Critical patent/TW425460B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/001Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
    • F16B25/0015Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being a soft organic material, e.g. wood or plastic
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/0036Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
    • F16B25/0042Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
    • F16B25/0047Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the ridge being characterised by its cross-section in the plane of the shaft axis

Abstract

The invention relates to a retaining screw produced by cold rolling, having a self tapping thread and designed to be screwed for example into thermoplastic material. Said screw has a virtually end-to-end cylindrical thread as well as thread teeth, the thread crest of which has the same height on the whole length, while the free space between two teeth remains the same all along the thread. The screw presents the following characteristics: (1) the thread outer diameter Do and the thread inner diameter gives a ratio Q1=Do/Dk, in a magnitude of 1.25 to 1.65; (2) the axial distance P between two thread teeth gives with the height H of the latter a ratio Q2=P/H, in a magnitude of 2.35 to 2.7; (3) the outer thread flank angle of the thread teeth is about 30 DEG; (4) the fillet flank surface features an inward curve in its central third and forms and outer and an inner thread flank angle, whereby the inner thread flank angle in the central portion is substantially equal to or larger than a third of the outer thread flank angle.

Description

經濟部智慧財產局員工消費合作社印製 is - 4 25 4 6 〇 A7 B7 五、發明說明(1 ) 本發明有關一種冷軋形成具有一自攻單程(self_ tapping single-flight)螺紋之螺釘,其特別用以螺入熱塑 勝’具有一概呈連續圓柱形螺紋底部及具有一連續相等 高度頂點之螵齒,沿螺紋係有相同的相鄰螺齒間之自由 空間β 德國專利說明書39 20 000號已知有一此型螺釘, 該專利說明書明顯揭示:藉由可達成一連續且精確計量 的螺合扭矩,特別適合設定及調整裝置(亦即移動螺紋) 之此螺釘係有一高品質的螺紋,同時其中製造螺釘期間 冷軋所花費用係小於習知型螺釘,為達此目的,螺釘約 有一 40度頂角(vertex angle),故冷軋程序期間易使螺釘 材料流動。 本發明係提供一螺釘,其與一移動螺釘的作用不同 ,係特別適合螺入熱塑膠以供固定β此型螺釘螺入塑膠 時係由穿入塑膠的螺齒所位移,因此螺剖面必須有足夠 的自由空間。此期間,螺齒位移的塑膠係擠入此自由空 間中’此情形中,德國專利說明書27 54 870號第2攔第 1段係首先說明盡量深入各塑膠工件(高轴承深度)之觀 念,因此,在約30度腹角情形中,須可有一對應的大型 自由空間。因此,德國專利說明書27 54 870號的螺釘 情形中,螺紋底部係有一收縮,使得一對應大型自由空 間可供螺齒位移之塑膠所用。此情形中,螺齒所位移的 塑膠必須從穿入塑膠的螺齒區域覆蓋進入螺紋底部一段 本紙張尺度適用中國困家棵準(CNS)A4规格<210 X 297公爱) .4 -" <請先閱讀背面之注$項再填寫本I > A衣--------訂· _ — !丨丨•線( A7 B7 經濟部智慧財產局貝,工消贄合作社印製 五、發明說明(2 ) 距離,其上方由於此距離長度使所位移塑膠失去與未位 移塑膠之緊密結合,故使該位移的塑膠較難施加拉出力 。“拉出力”係指拉出該螺入的螺釘所需之力量。但是, 一用以收納已位移塑膠之大型自由空間係導致一對應的 小型螺紋底部直徑(核心直徑),其結果可為:當螺入此 一螺釘時’特別是當其螺入一較大量螺程(screvv flights) 時,係由作用其上的扭矩造成過度負荷且中止。 塑膠位移的重要概念概為根據欧洲專利說明書 〇,589,399號之螺釘設計,對於螺腹的一高支承深度之 此螺釘的明顯設計,係達成一材料位移而使該材料壓實 在螺腹上,尤其必須吸收在螺釘上所作用拉出力之所謂 負荷腹(load flanks)上。為了使材料以此方式流動,螺 釘具有一錐形螺紋底部,其中較小的核心直徑係與該負 荷腹部相鄰》塑膠的流動因此係導往負荷腹部,然後塑 膠受到壓實。此計畫中的塑膠流動係預定使材料充分加 熱並轉換成流動並固化,同時螺釘被螵入》已知螺釘的 設計故顯著取決於塑膠的軟化、偏移及壓實,同時螺釘 被螺入,因此塑膠從其原結合處完全釋放且改變其結構 ,因此,螺釘的負荷腹部須支撐在由此方式改變之此材 料上,但如此正使得因而螺入之一螺釘的拉出力降低。 本發明係與習知技藝迄今所知概念不同,其中螺齿 係盡量深入塑膠中,這開始看乎合理以達成高度的拉出 力。因此,必須使用下列尺寸: 本紙張尺摩適用中國國家標準(CNS>A4規格(210 X 297公»了 I------------裝 ----訂·---線 (請先閱讀背面之注意事項再填窵本頁》 ^ 425 4 〇 0 A7 __B7 五、發明說明(3 ) 1. 螺紋外徑Do舆核心直徑Dk形成1.25至1.65量值之 一商數Ql=Do/Dk ; 2. 相鄰螺齒之轴向間隔p與螺齒高度η ,具有 卩2=?/11商數,其量值為2.35至2.7; 3·歯的頂角約為30度; 4.螺釘係由可硬化或精煉鋼構成。 此尺寸導致該螺釘具有較低的螺齒,故使螺釘坐落 在塑膠上而有較低的穿透深度。其一優點為··所位移塑 膠的結構未受嚴重程度的損害,為了達成在較低穿透深 度時之高度拉出力,螺紋係有一較低節距,故提供與塑 膠接合之一大量螺程》 此外’此尺寸具有下列效果:核心尺寸具有使其可 考量到軋製期間的一個別螺釘胚料的成形表現之尺寸, 特別是其中在核心直徑上所累積之螺齒高度仍夠大,以 使螺釘材料在軋製期間藉由胚料上的施壓以有利方式在 螺齒之間的區域中位移,且因此產生精確定型的螺齒。 另一方面其亦有優點:穿入時未損及塑膠,但仍有一高 度,在軋製期間使其形狀可有相當的精確度。 故可完全利用上述尺寸可能造成的這些效果,根據 本發明之螺釘約有30度的螺紋頂角。 螺入塑膠的螺釘之一此類頂角誓如瓶示於德國專利 說明書27 54 870號,此螺釘之目的係在螺程之間產生 一較大的自由空間,可供螺釘螺入之塑膠使用。因此, 本紙張尺度適用中國困家摞準(CNS>A4規格(210 X 297公* > (請先閱讀背面之注意事項再填寫本頁)Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs-4 25 4 6 〇A7 B7 V. Description of the Invention (1) The present invention relates to a cold-rolled screw having a self-tapping single-flight thread. Especially for screwing into thermoplastics, it has a generally continuous cylindrical thread bottom and a tooth with a continuous apex of equal height, along the thread there is the same free space between adjacent screw teeth β German Patent Specification 39 20 000 This type of screw is known, and the patent specification clearly reveals that by achieving a continuously and accurately measured screwing torque, the screw is particularly suitable for setting and adjusting the device (ie, the moving thread). The cost of cold rolling during the manufacture of screws is less than that of conventional screws. To achieve this, the screws have a vertex angle of about 40 degrees, so the screw material is easy to flow during the cold rolling process. The present invention provides a screw, which has a different function from a moving screw. It is particularly suitable for screwing thermo plastic for fixing β. This type of screw is displaced by the teeth of the screw when screwing into the plastic. Therefore, the screw section must have Enough free space. During this period, the plastic system of the screw tooth displacement was squeezed into this free space. In this case, the first paragraph of German Patent Specification 27 54 870 No. 2 Paragraph 1 first explained the concept of as far as possible to each plastic workpiece (high bearing depth), so In the case of a ventral angle of about 30 degrees, there must be a corresponding large free space. Therefore, in the case of the screw of the German patent specification 27 54 870, the bottom of the thread has a shrinkage, so that a large free space can be used for the plastic of the screw tooth displacement. In this case, the plastic displaced by the screw teeth must cover from the area of the screw teeth penetrating the plastic and enter the bottom of the thread. This paper size is applicable to the China Standard Zhunzhen (CNS) A4 specification < 210 X 297 public love). 4-" < Please read the note on the back before filling in this I > A shirt -------- Order · _ —!丨 丨 • Line (A7 B7 Printed by the Bureau of Intellectual Property of the Ministry of Economic Affairs, printed by the Industrial Cooperative Cooperative, Ltd. V. Description of the Invention (2) The distance above it, because of the distance between the displaced plastic and the non-displaced plastic is closely combined, so The displaced plastic is more difficult to apply a pull-out force. "Pull-out force" refers to the force required to pull out the screw that is screwed in. However, a large free space to accommodate the displaced plastic results in a corresponding small thread bottom diameter (Core diameter), the result can be: when screwing into this screw, especially when it screwed into a large amount of screw flights (scrvv flights), it is caused by the torque acting on it to cause an excessive load and stop. The important concept is based on the screw design of European Patent Specification No. 0,589,399. For the obvious design of this screw with a high bearing depth of the screw belly, a material displacement is achieved to compact the material on the screw belly. The so-called load flanks that absorb the pull-out force acting on the screw. In order for the material to flow in this way, the screw has a tapered threaded bottom, the smaller of which The core diameter is adjacent to the load abdomen. The flow of plastic is therefore directed to the load abdomen, and the plastic is compacted. The plastic flow in this plan is intended to fully heat and convert the material into a flow and solidify, and at the same time the screw is smashed. The design of known screws depends significantly on the softening, deflection and compaction of the plastic. At the same time, the screws are screwed in, so the plastic is completely released from its original joint and its structure is changed. Therefore, the load belly of the screws must be supported on The material is changed in this way, but this is so that the pull-out force of a screw that is screwed in is reduced. The present invention is different from the concepts known to date in the conventional art, in which the screw teeth are as deep as possible in the plastic, which starts to look at Reasonable to achieve a high pull-out force. Therefore, the following sizes must be used: This paper ruler applies the Chinese national standard (CNS > A4 specification (210 X 297 male). I ------------ pack- --- Order · --- Thread (please read the notes on the back before filling in this page) ^ 425 4 〇0 A7 __B7 V. Description of the invention (3) 1. The outer diameter of the thread Do and the core diameter Dk form 1.25 to Quotient of 1.65 magnitude Ql = Do / Dk; 2. The axial distance p between the adjacent teeth and the height η of the teeth have a quotient of 卩 2 =? / 11, the magnitude of which is 2.35 to 2.7; the vertex angle of 3 · 歯 is about 30 4. The screw is made of hardenable or refined steel. This size causes the screw to have lower teeth, so the screw sits on plastic and has a lower penetration depth. One advantage is ... The structure of the displacement plastic is not severely damaged. In order to achieve a high pull-out force at a lower penetration depth, the thread system has a lower pitch, so it provides a large number of screw strokes with the plastic. In addition, 'This size has the following Effect: The core size has a size that allows it to take into account the forming performance of a separate screw blank during rolling, especially the height of the screw teeth accumulated on the core diameter is still large enough to enable the screw material to be rolled during rolling By applying pressure on the blank, it is advantageously displaced in the area between the helical teeth and thus produces precisely shaped helical teeth. On the other hand, it also has the advantage that it does not damage the plastic when penetrating, but still has a high degree, and its shape can be quite accurate during rolling. It is therefore possible to make full use of these effects which may be caused by the above dimensions. The screw according to the invention has a thread apex angle of about 30 degrees. One of the top corners of screws screwed into plastic is shown in a bottle in German Patent Specification 27 54 870. The purpose of this screw is to create a large free space between the screw strokes, which can be used for the screwed plastic . Therefore, this paper size is applicable to Chinese standards (CNS > A4 size (210 X 297 male * > (Please read the precautions on the back before filling this page))

c^.-------—訂.l·! —---線 C 經濟部智慧財產局員工消费合作杜印製 6 A7 ____B7___ 五、發明說明(4 ) 此螺釘所依趨勢係使盡量多塑膠受螺齒所位移,亦即配 合一高的穿透深度,因此達成高度拉出力。因此,此專 利說明書的的原理並不適合德國專利說明書39 26 000 號界定的習知技藝’因為此習知技藝除了當適用塑膠螺 釘時特別適於移動螺紋之外,可使盡少量的塑膠隨這些 螺釘作位移。 與高度相關之尺寸特徵及螺齒間隔及採用一已知特 別小頂角之組合,係強化了當螺釘螺入塑膠時使盡少量 塑膠位移之原理,因為受30度的小頂角所位移之塑膠塊 係顯著小於40度頂角之情形,如德國專利說明書39 26 〇〇〇號所示。結果螺紋節距界定的螺程間存在之間隙空 間可保持較短,其結果為:若螺入長度維持相同,則固 定在一塑膠元件中之螺程數同樣增加,其同樣造成拉出 力增加。 經濟部智慧財產局具.工消费合作社印製 - - - I — — —— — — — — — --- (锖先閱讀背面之注意事項再填寫本頁) -I線. 而度的拉出力需在軸向及切線方向中具有螺釘的一 對應之負荷承受能量。若螺釘相對其外徑之剖面愈細, 則在螺入及旋緊時’螺釘上相對其剖面之負荷愈大。因 此’此情形中’可承受高度的拉出力,已知螺釘所用的 螺釘材料迄今已需有極高的強度,其結果為高度回火材 料已需用於所述螺釘中β另一方面,這些材料耗費成本 ,另一方面’對於氫擴散所產生的emorittlement起敏感 反應此已知效果可導致:高度回火材料製成的穩固旋 緊螺釘在螺入且旋緊之後,係產生時間延後的脆性斷裂 本紙張尺度適用中目國家棵準(CNS&gt;A4規格(210 X 297公釐) 42546 Ο Α7 ------Β7 _ S、發明說明(5 ) ,譬如數曰後其頭部分裂開來β根據本發明之螺釘尺寸 係提供具有相對其外徑的較大剖面之螺釘(譬如第丨圖、所 明示)。根據本發明的螺釘藉由其剖面設計故可吸收比 至今可能之顯著較高的扭矩及轴向力,這可能產生根據 本發明由比習知螺釘具有—較低強度之材料所製造的螺 釘,亦即可用因較低回火而不易吸收該擴散氫之材料’ 且因此易有脆性斷裂。 本發明之另一目的係使一冷軋螺釘對於通過螺圈之 軸段設有一自攻螺紋,使得螺紋在螺入塑膠時位移的塑 膠材料可以一特別有利方式流出。 可依本發明達成上述作用,其中螺圈的—腹面約在 '央的二分之一處具有一往内引導的反曲部,並形成一 約30度的外腹角(在反曲部與螺峰之間)及一内腹角(在 反曲部與螺根之間)’其中内腹角平均概等於或大於丨/3 的外腹角。 EP專利133 773號描述一種用以螺入塑膠内之螺釘 ,其係有一自攻螺紋、且為了增加釋放扭矩,軸段中之 螺腹係在一側上呈直線狀且另一側上設有一往外導的反 曲部。此螺紋構造中,在塑膠位移期間不可能抵消所位 移與未位移塑膠之間的接觸損失。並且,EP專利476 83 1 號同樣提出一螺釘螺紋之一不對稱構造,其用以螺入塑 膝中且有一自攻螺紋,其中此構造係在軸段中形成螺圈 ,在一側上呈直線狀而可在另一側以弧形進入螺根,螺 本紙張反度適用中國國家播準〈CNS)A4规格⑽x 297公爱〉c ^ .--------- Order.l ·! ------ Line C Printed by the Intellectual Property Bureau Staff of the Ministry of Economy 6 A7 ____B7___ V. Description of the Invention (4) The trend on which this screw is based As much plastic as possible is displaced by the screw teeth, that is, with a high penetration depth, so a high pullout force is achieved. Therefore, the principle of this patent specification is not suitable for the conventional technique defined in German Patent Specification No. 39 26 000 'because this conventional technique is particularly suitable for moving threads when plastic screws are used, so that a small amount of plastic can be used with these The screw is displaced. The combination of height-related dimensional characteristics and screw tooth spacing and the use of a known special small vertex angle strengthens the principle of making a small amount of plastic displacement when the screw is screwed into the plastic, because it is displaced by a small vertex angle of 30 degrees. The plastic block is a case where the apex angle is significantly less than 40 degrees, as shown in German Patent Specification No. 39 26000. As a result, the gap space between the screw strokes defined by the thread pitch can be kept short. As a result, if the screw-in length remains the same, the number of screw strokes fixed in a plastic component also increases, which also causes an increase in pullout force. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs. Printed by the Industrial and Consumer Cooperatives---I — — — — — — — — —-(锖 Please read the notes on the back before filling this page) -I line. A corresponding load-bearing energy with screws in the axial and tangential directions is required. The thinner the cross section of the screw relative to its outer diameter, the greater the load on the cross section of the screw when it is screwed in and tightened. Therefore 'in this case' can withstand a high degree of pull-out force. It is known that the screw materials used for screws have heretofore required extremely high strength. As a result, highly tempered materials have been used in said screws. On the other hand, these Material is costly, on the other hand, it reacts sensitively to the emorittlement produced by hydrogen diffusion. This known effect can lead to: a stabilised screw made of highly tempered material is screwed in and tightened, resulting in a delayed time Brittle fracture The standard of this paper is applicable to Central China countries (CNS &gt; A4 size (210 X 297 mm) 42546 〇 Α7 ------ B7 _ S, description of the invention (5), such as the head split after several years Kailai β The screw size according to the present invention provides a screw with a larger cross-section relative to its outer diameter (for example, figure 丨, clearly shown). By virtue of its cross-sectional design, the screw according to the present invention has a significant absorption ratio that is possible so far. Higher torque and axial force, which may result in screws made from materials with lower strength than conventional screws according to the present invention, that is, materials that are less likely to absorb the diffusing hydrogen due to lower tempering It is therefore prone to brittle fracture. Another object of the present invention is to provide a cold-rolled screw with a self-tapping thread for the shaft section passing through the coil, so that the plastic material that the thread displaces when screwed into the plastic can flow out in a particularly advantageous manner. The above-mentioned effect can be achieved according to the present invention, in which the spiral-ventral surface has an inwardly directed recurved portion at about one-half of the center and forms an external ventral angle of approximately 30 degrees (in the recurved portion and the Between the spiral peaks) and an internal ventral angle (between the recurved portion and the root of the spiral) 'wherein the average internal ventral angle is approximately equal to or greater than the external ventral angle of 丨 / 3. EP patent 133 773 describes a method for screwing into plastic The internal screw is provided with a self-tapping thread, and in order to increase the release torque, the screw belly in the shaft section is linear on one side and an outwardly curved portion is provided on the other side. In this thread structure, It is impossible to offset the contact loss between the displaced and undisplaced plastics during the displacement of the plastic. Moreover, EP patent 476 83 1 also proposes an asymmetric structure of a screw thread, which is used to screw into the plastic knee and has a self-tapping Thread where this construct is tied In paragraph form a spiro ring, linearly on one side and can be screwed into the arc root on the other side, the sheet of the present anti-spiro Degree of Chinese National multicast registration <CNS) A4 size Kimiyoshi ⑽x 297>

S &lt;锖先閱讀背面之注$項再填寫本頁) &quot;!1 訂·! —線/ 修i£日期年11月 係以增加拉出 A7 B7 發明說明(6) 第88116088號專利說明書修i頁 紋的腹角因此在弧形區域中固定增加 力的效果來改良塑膠材料的位移。 請再參照德國新型79 25 469號,其中揭示設有一螺紋 之一焊端(welding tip) ’且其中螺紋用以將一工件壓迫在 設有一開口的焊端上,且用以固定該工件,其中尖緣螺峰 將工件材料壓入且抵抗一拉出力將其固定。在已知“焊端 情形_,螺紋係設有尖緣,其中一周邊階段係侧向壓在螺 峰上,該階段以一失緣型態合併入一螺腹内,如此必然在 螺峰上提供約75度之一特大的腹角。 此構造代表已知焊端上設置的螺紋並不適合—用以螺 入塑膠且有一自攻螺紋之螺釘,因為用以螺入塑膠的螺釘 僅確使在略以刀刃方式設計螺圈剖面時(請見上述的德國 專利27 54 870號)’螺圈有一足夠的穿透深度。 由於螺圈腹面之向内的反曲部,受螺圈所位移的塑膠 材料係移入内腹角區域中。由於向内反曲部及因此往外延 伸較遠之間隙,此區域係直接接合了從孔壁突設之位移塑 膠材料而不累積材料,因此所位移的塑膠材料由於短距離 位移而#气最小範圍的加熱,且與未位移、故未受損塑躍: 材料保持直接緊密的接觸。如此係指大致保持其性質之此 位移的塑膠材料在内腹角區域中係可抵消拉出力、且因此 顯著有助於相關螺接之負荷能量》 在各情形中,反曲部可能恰設置在一螺圈的整體螺 本紙張尺度適用t國國家標準(CNS)A4規格(210 χ297公;5E ) (請先閱讀背面之注意事項再填寫本頁) 裝: .線. 經濟部智慧財產局貝工消费合作社印製 4 254 6 0 at Β7 五、發明說明(7 ) 紋上方,反曲部始終位於一側上,但各情形中反曲部亦 可能設置在一螺圈的兩腹半部上。僅在一腹面上之反曲 部配置係取決於相關螺釘螺入之塑膠材料,若塑勝材料 為熱敏感性’則反曲部有利地配置於引導離開螺釘頭部 之該腹面(後腹)上,此情形中,主要在後腹側上具有一 塑膠材料變形’其他變形的塑膠材料係流入反曲部提供 之間隙内’因此在導往螺釘頭部之腹面(ϋ荷腹部)上具 有大致未加熱的塑膠材料,以吸收螺釘上之作用力*另 一方面,塑膠材料若為抗溫性(尤其在因玻璃織維強化 之情形),則反曲部係有利地位於負荷腹部上,此情形 中,當螺釘螺入時移動之塑躍·材料係在負荷腹部前方有 一相當範圍的累積。該塑膝材料由於其數量且視需要因 為其填料提供的強化,特別可良好地承受螺釘施加的負 荷。 外腹角可在軸段中對稱或不對稱地团繞螺圈,對於 生產冷軋作業所需的軋夾而言’一對稱的邊界係為有利 的;一不對稱的邊界係對特定塑膠材料產生增加的拉出 力。 可選擇在内腹角區域中之腹面構造,使得腹面以直 線或凹彆方式在轴向中從反曲部前進,此構造的選擇係 取決於螺釘所螺入之塑膠。 對於螺圈内腹角之構造,該角亦可在軸段中對稱或 不對稱地圍繞螺圈,此邊界的選擇同樣主要取決於螺釘 -----.—.11.----(V--------訂l·-------線.C Ί (請先闓讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準(CNS)A4規格(210 * 297公釐) 10S &lt; 锖 Read the note on the back before filling in this page) &quot;! 1 Order! —Line / Repairing Date: November 2007 is to increase the pull-out of the A7 B7. (6) Patent Specification No. 88116088 repairs the ventral angle of the page, so the effect of increasing the force is fixed in the curved area to improve the plastic material. Displacement. Please refer to German new type 79 25 469 again, which discloses a welding tip provided with a thread, and wherein the thread is used to press a workpiece onto a welding end provided with an opening, and is used to fix the workpiece, wherein The sharp edge screw peak presses the workpiece material in and fixes it against a pulling force. In the known "weld end situation_", the thread is provided with a sharp edge. One of the peripheral stages is laterally pressed on the screw peak. This stage is merged into a screw belly with a missing edge pattern, so it must be on the screw peak. Provides an extra-large ventral angle of about 75 degrees. This configuration represents a known screw on the weld end that is not suitable—for screwing plastic and has a self-tapping screw, because the screw for screwing plastic only When designing the coil section slightly with a blade (see German Patent No. 27 54 870 above), the coil has a sufficient penetration depth. Due to the inwardly curved portion of the coil's ventral surface, the plastic displaced by the coil The material is moved into the area of the inner ventral corner. Because of the inwardly curved portion and the gap extending farther out, this area directly joins the displaced plastic material protruding from the hole wall without accumulating material, so the displaced plastic material Due to the short-distance displacement, the # gas is heated in the smallest range, and it is not damaged, so it is not damaged. The material stays in direct and close contact. This means that the plastic material of this displacement, which generally maintains its properties, is in the area of the inner ventral angle. Can be arrived Dissipating the pull-out force, and thus significantly contributing to the load energy of the relevant screw joints "In each case, the recurved portion may be set exactly on the entire spiral of the spiral. The paper size of the paper applies to the national standard (CNS) A4 specification (210 χ297 公; 5E) (Please read the notes on the back before filling out this page) Pack:. Thread. Printed by Shelley Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 4 254 6 0 at Β7 V. Description of Invention (7) Above the lines, The recurved part is always located on one side, but in each case the recurved part may also be arranged on the two abdominal halves of a coil. The configuration of the recurved part only on one ventral surface depends on the plastic material into which the relevant screw is screwed If the plastic victory material is thermally sensitive, then the recurved portion is advantageously disposed on the ventral surface (retroventral) leading away from the head of the screw. In this case, there is a deformation of a plastic material mainly on the posterior ventral side. Other deformations The plastic material flows into the gap provided by the recurved portion. Therefore, there is a substantially unheated plastic material on the ventral surface (the belly of the lotus) leading to the screw head to absorb the force on the screw. * On the other hand, the plastic material If temperature resistance ( In the case where it is strengthened due to glass weaving), the recurved part is advantageously located on the load abdomen. In this case, the plastic jumping material that moves when the screw is screwed in has a considerable range of accumulation in front of the load abdomen. The The knee plastic material can withstand the load of the screw particularly well due to its quantity and the reinforcement provided by its filler if necessary. The external ventral angle can be wound around the spiral ring symmetrically or asymmetrically in the shaft segment. For a required rolling clamp, a symmetrical boundary system is advantageous; an asymmetric boundary system generates an increased pull-out force on a specific plastic material. The ventral surface structure in the inner ventral angle region can be selected so that the ventral surface is straight or concave In other ways, it advances from the recurved part in the axial direction. The choice of this structure depends on the plastic into which the screw is screwed. For the structure of the inner ventral angle of the coil, the angle can also surround the screw symmetrically or asymmetrically in the shaft segment. Circle, the choice of this boundary also depends mainly on the screw -----.—. 11 .---- (V -------- order l · ------- line .C Ί ( (Please read the notes on the back before filling out this page) This paper size is applicable to China Standard (CNS) A4 specification (210 * 297 mm) 10

經濟部智慧財產局員工消費合作社印製 A7 ______B7__ 五、發明說明(8 ) 所螺入之塑膠。 為了增加螺圈的穩定度及改良螺釘由冷軋製造期間 之材料流動’方便地設定螺釘,使得螺紋底部區域中之 腹面係以螺紋底部加寬形式合併入螺根中,該程序係増 加了内腹角’此情形中,該加寬係形成平均大於外腹角 之一腹角,該加宽可能在轴段中直線進行,但加宽亦可 能在轴段中以凹彎方式進行。 第1圖顯示一螺入一管之固定螺釘,用以固定一板 f 第2圖顯示根據第1圖的螺釘之單程(single-flight)螺 紋之放大細部圖; 第3圖顯示一兩程螺紋之細冰圖: 严 第4圖剖示一螺釘;一 } 第5圖顯示螺圈,其中一螺圈之兩面係包含一反曲 部,亦可顯示該接收塑膠材料,‘ 第6圖顯示螺圈,僅在一腹面f具有一反曲部; 第7圖顯示螺圈,僅在一腹面上具有一反曲部及一 不對稱的外腹角; 第8圖顯示螺圈,係在螺紋底部肩域中具有内腹角 之一加寬部, 第9圖顯示螺圈,係配合一不對輪的外腹角在螺紋 底部區域中具有腹面之一加寬部β 第1圖顯示冷軋形成具有自攻螺紋2之一螺釘1,其 本紙張又度適用中國國家標準(CNS)A4規格(210 κ 297公爱) 11 — — — — — — — — — — — — — ·丨 11! 11 ! f — — - *5^ f靖先閱讀背面之注意事項再填寫本頁) _____:______ _I___Ί__ ______ ^4254 6 0 A7 ______B7 _____ 五、發明說明(9 ) 均勻延伸於柄3上方。在與柄3端點相對之螺釘丨側邊上 ,該螺釘具備螺釘頭部4,其設有一型削(pr〇fiied)凹部 5以插入一適當的螺絲扳手,藉此螺釘丨係螺入一工件( 管6)中,螺釘1之作用係將板7固定至管6,因此,螺釘 相對管6旋緊之方式使其頭部4同時將板7壓抵住管6。 第1圖明示根據本發明之固定螺釘1的特殊特徵,尤 其其進入管6材料中之較低穿透深度,及相較於此,螺 紋之較大的核心直徑Dk’其連續圓柱形螺紋底部8係僅 留下對於管6内面9之一較小自由空間。 第2圈顯示根據第1圈的柄3之放大細部圖,此細部 囷顯示核心直徑Dk、外徑Do及轴向間隔ρ及螺齒高度η 。但是’螺齒的腹角在第2圖中指定為30度。 由第2田可知放大顯示之螺釘中,Q! =D〇/Dk之商數 為1.43,此商數Q2=抽向間隔P/高度Η係有2.57的數值。 第3圖期示一兩程螺紋11之細部圖,其中除了程數 (number of flights)不同之外皆大致雷同第2困的螺紋2: 在一螺程與另一螺程之兩相鄰螺齒之間測量第3圖之螺 紋3 1中之軸向間隔P,將如第2囷的示範性實施例,使 商數Q2=軸向間隔P/高度Η係有2.57的數值》 第1及2圖所示的固定螺釘係常製成1至10公厘之一 外徑,本發明的螺釘係適合螺入目前慣用的熱塑膠、且 亦螺入所有具該等熱塑膠相似性質之其他材料。 第4圊顯示一冷軋螺釘,設有螺釘頭部21及螺釘柄22 本纸張尺度適用_國圃家標準(CNS)A4規格(210x 297公釐) (猜先閱讀背面之注音項再填寫本頁) (、衣---_---„---訂*卜-------線( 經濟部智慧財產局MK工消費合作社印製 12 A7 A7Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 ______B7__ V. Plastic Description of the Invention (8). In order to increase the stability of the coil and improve the material flow during the cold-rolled manufacturing of the screw, it is convenient to set the screw so that the ventral surface in the area of the bottom of the thread is incorporated into the root of the thread in the form of a widened bottom of the thread. This procedure has been added. Ventral angle 'In this case, the widening is an ventral angle which is on average larger than the external ventral angle. The widening may be performed in a straight line in the shaft segment, but the widening may also be performed in a concave manner in the shaft segment. Figure 1 shows a fixing screw screwed into a tube to fix a plate f Figure 2 shows an enlarged detail view of the single-flight thread of the screw according to Figure 1; Figure 3 shows a two-pass thread The fine ice chart: Yan Figure 4 shows a screw; 1} Figure 5 shows the coil, where both sides of a coil contain a recurved part, and the receiving plastic material can also be shown, 'Figure 6 shows the screw Circle, with a curved portion only on one ventral surface f; Fig. 7 shows a spiral ring, with a curved portion and an asymmetric outer ventral angle only on one ventral surface; Fig. 8 shows a spiral ring, tied at the bottom of the thread In the shoulder area, there is a widened part of the inner ventral angle. Figure 9 shows the spiral. The external vented angle of a pair of wheels has a widened part of the ventral surface in the bottom area of the thread. One of the screws 1 of the self-tapping thread 2, the paper is also applicable to the Chinese National Standard (CNS) A4 specification (210 κ 297 public love) 11 — — — — — — — — — — — — 11! 11! f — —-* 5 ^ f Jing first read the notes on the back before filling out this page) _____: ______ _I ___ Ί__ _____ _ ^ 4254 6 0 A7 ______B7 _____ 5. Description of the invention (9) Extends evenly above the handle 3. On the side of the screw opposed to the end of the handle 3, the screw is provided with a screw head 4 which is provided with a profied recess 5 to insert an appropriate screw wrench, whereby the screw is screwed into a In the workpiece (tube 6), the function of the screw 1 is to fix the plate 7 to the tube 6. Therefore, the screw is tightened relative to the tube 6 so that the head 4 presses the plate 7 against the tube 6 at the same time. Figure 1 shows the special characteristics of the fixing screw 1 according to the invention, in particular its lower penetration depth into the material of the tube 6, and in comparison to this, the larger core diameter Dk 'of the thread and its continuous cylindrical thread bottom The 8 series leaves only a small free space for one of the inner faces 9 of the tube 6. The second circle shows an enlarged detail view of the shank 3 according to the first circle. This detail 囷 shows the core diameter Dk, the outer diameter Do, the axial interval ρ, and the screw tooth height η. However, the ventral angle of the 'spiral tooth' is designated as 30 degrees in the second figure. From the second field, it can be seen that in the enlarged display screw, the quotient of Q! = D0 / Dk is 1.43, and the quotient Q2 = pumping interval P / height has a value of 2.57. Figure 3 shows a detailed view of the thread 11 of one or two passes, except that the number of flights is substantially the same as that of the second thread 2: the two adjacent threads of one thread and the other thread Measure the axial interval P in the thread 31 of Fig. 3 between the teeth, as in the exemplary embodiment of Fig. 2 so that the quotient Q2 = the axial interval P / height is a value of 2.57 " The fixing screws shown in Figure 2 are usually made with an outer diameter of 1 to 10 mm. The screws of the present invention are suitable for screwing into currently used thermoplastics, and also screwing in all other materials with similar properties to these thermoplastics . Chapter 4 shows a cold-rolled screw with a screw head 21 and a screw shank 22. This paper size is applicable _ National Garden Standard (CNS) A4 size (210x 297 mm) (Guess to read the phonetic entry on the back before filling in (This page) (, clothing ---_--- „--- order * bu ------- line (printed by MK Industrial Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs 12 A7 A7

五、發明說明(10 ) ,其具有螺圈23 »螺圈23的剖面係指第5圖的相關說明 。一塑膠元件中的一螺孔内壁亦由虛線24顯示於第4圖 ,虛線24的位置可見螺圈23具有大於1/3之穿透入一塑 勝元件(未圖示)材料之高度,此情形中,線24多少與择 圈23腹面中之反曲部25(第5囷)位置相交。但應指出線24 可能選擇一不同位置,此位置係取決於螺釘所螺入之相 關塑膠材料。 第5圖顯示轴段中對稱配置之螺圈23,這是因為腹 面34/35及腹面31/33設有一反曲部,亦即反曲部36與反 曲部25。反曲部36與反曲部25係在外腹角α(反曲部36 或反曲部25及螺峰47之間)與内腹角泠(反曲部36或反曲 部25及螺根27之間)之間形成邊界。外腹角α與内腹角 召皆對稱園繞螺圈23,由第5圖亦可知:螺圈23如何穿 透入部份組件所屬之塑膠材料46,螺圈23的此穿透係導 致圓緣29沿螺腹34/35及3 1/33並排形成,此情形中,塑 勝材料46係在螺根27方向中位移,最窄的螺圈23係導致 塑膠材料46的最小位移。螺腹34/35及31/33略位於線24 區域中之反曲部係在兩側邊上造成一額外間隙,如虛線 32所示》虛線32形成内腹角召區域中的腹面33及35之想 像延續。在螺根27與圓緣29之間設置的間隙30係因腹面 33及35的反曲部而相對應地增加尺寸,亦即轉折入較小 的腹角冷。 第6囷顯示相對第5圈構造作修改之螺圈23之一定型 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -----— I!---裝 -----——訂· ---—In (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員i消-f合作社印製 13 - 4 25 4 6 0 a? _ Β7 五、發明說明(11 ) ,根據第6圖,螺圏23係在軸段中不對稱配置,因為腹 面26直線進行到螺根27,另一腹面28具有反曲部25 » 第7圖顯示第6囷所示之另一修改,第7圖具有螺圈23 ,其中一腹面38直線進行且另一腹面37隨一反曲部進行 ,與第6圖的差異為:不對稱出現在外腹角α的區域中。 第8圖顯示根據第5g的構造之一修改,根據第8圖 的螺釘具有加寬部42及43,其在各情形中直線進行於螺 紋底部區域中,加寬部42及43亦可為凹脊設計。 第9圚顯示與第7圊類似之一構造,其中具有一不對 稱外腹角α ’各情形中進入腹底部_之轉折係設計為一 直線進行的加寬部42及43。 亦應指出外腹角區域中之不對稱性亦可設於内腹角 區域中’如上述’且此情形可視需要關於螺紋底部區域 中提供之加寬部。 一根據本發明之螺釘特別適合軟塑膠,其中在約30 度的腹角變化範圍中,所選數值係造成特別銳角狀的螺 圈,亦即約有25度之一腹角》 ---- ! ti I L I I 1^----衣--I Γ - 0, . ‘ _ V 、 &lt;請先閱讀背面之注意事項再填寫本頁) l· —丨訂----- 經濟部智慧財產局貝工消費合作社印製 14 本紙張尺度適用中國國家標準(CNS)A4規格&lt;21〇 x 297公爱) A7 B7 五、發明說明(!2 ) 元件標號對照 經濟部智慧財產局員工消費合作社印製 1…螺釘 29…圓緣 2,11…自攻螺紋 30…間隙 3…柄 26,28;31/33,34 4,21…螺釘頭部 …腹面 5…凹部 42,43…加寬部 6…管 46…塑膠材料 7…板 47…螺峰 8*··螺紋底部 Dk···核心直徑 9…内面 Do…外徑 22…螺釘柄 Η…螺齒高度 23…螺圈 Ρ…轴向間隔 2 4,3 2…虛線 α…外腹角 25,36…反曲部 27…螺根 冷…内腹角 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) 155. Description of the invention (10), which has a spiral coil 23 »The cross section of the spiral coil 23 refers to the relevant description in FIG. 5. The inner wall of a screw hole in a plastic element is also shown in FIG. 4 by a dashed line 24. The position of the dashed line 24 shows that the screw ring 23 has a height greater than 1/3 that penetrates into the material of a plastic win element (not shown). In the case, the line 24 intersects with the position of the inflection part 25 (5th) in the ventral surface of the circle 23 more or less. It should be noted, however, that the wire 24 may choose a different position depending on the relevant plastic material into which the screw is screwed. Fig. 5 shows the spiral coils 23 arranged symmetrically in the shaft section, because the abdominal surface 34/35 and the abdominal surface 31/33 are provided with a recurved portion, that is, a recurved portion 36 and a recurved portion 25. The recurved portion 36 and the recurved portion 25 are located between the outer ventral angle α (between the recurved portion 36 or the recurved portion 25 and the screw peak 47) and the inner ventral angle (the recurved portion 36 or the recurved portion 25 and the screw root 27) Between). The outer ventral angle α and the inner ventral angle are symmetrically wound around the spiral coil 23. It can also be seen from Figure 5: how the spiral coil 23 penetrates the plastic material 46 to which some components belong. This penetration of the spiral coil 23 results in a circle. The edge 29 is formed side by side along the screw belly 34/35 and 3 1/33. In this case, the plastic victory material 46 is displaced in the direction of the screw root 27, and the narrowest coil 23 causes the smallest displacement of the plastic material 46. The snail abdomen 34/35 and 31/33 are located slightly in the area of line 24. The recurved portions create an extra gap on both sides, as shown by the dotted line 32. The dotted line 32 forms the ventral surfaces 33 and 35 in the inner ventral area. The imagination continues. The gap 30 provided between the screw root 27 and the rounded edge 29 is correspondingly increased in size due to the curved portions of the ventral surfaces 33 and 35, that is, turned into a smaller ventral angle. The sixth paper shows a certain shape of the spiral paper 23 which is modified relative to the structure of the fifth circle. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ------ I! --- pack- ----—— Order · --- In (Please read the notes on the back before filling this page) Printed by i-f Cooperative, Member of Intellectual Property Bureau, Ministry of Economic Affairs 13-4 25 4 6 0 a? _ Β7 5 Explanation of the invention (11) According to Fig. 6, the snails 23 are arranged asymmetrically in the shaft section, because the ventral surface 26 goes straight to the screw root 27, and the other ventral surface 28 has a curved portion 25 »Fig. 7 shows the sixth Another modification shown in Fig. 7 has a spiral 23 in which one ventral surface 38 proceeds in a straight line and the other ventral surface 37 proceeds with a recurved portion. The difference from FIG. 6 is that the asymmetry appears in the outer ventral angle α. Area. Fig. 8 shows a modification according to the structure of 5g. The screw according to Fig. 8 has widened portions 42 and 43, which in each case proceed straight in the area of the bottom of the thread. The widened portions 42 and 43 can also be concave. Ridge design. Fig. 9 (a) shows a structure similar to that of Fig. 7 (a), in which a turning with an asymmetric outer ventral angle α 'into the ventral bottom_ is designed as a straightened widened portion 42 and 43. It should also be pointed out that the asymmetry in the outer ventral angle region can also be provided in the inner ventral angle region 'as described above' and in this case, if necessary, with regard to the widening provided in the bottom region of the thread. A screw according to the present invention is particularly suitable for soft plastics, in which the value selected in the variation range of the abdominal angle of about 30 degrees results in a particularly acute angled coil, that is, a ventral angle of about 25 degrees ---- ---- ! ti ILII 1 ^ ---- yi--I Γ-0,. '_ V 、 &lt; please read the precautions on the back before filling in this page) l · — 丨 -------- Intellectual Property of the Ministry of Economic Affairs Printed by Bureau Coconut Consumer Cooperative Co., Ltd. 14 This paper size is applicable to Chinese National Standard (CNS) A4 specifications &lt; 21〇x 297 public love) A7 B7 V. Description of the invention (! 2) Component label comparison with Intellectual Property Bureau Employees Cooperative Cooperative of Ministry of Economic Affairs Printed 1 ... screw 29 ... round edge 2,11 ... self-tapping thread 30 ... clearance 3 ... shank 26,28; 31 / 33,34 4,21 ... screw head ... ventral surface 5 ... recessed portion 42,43 ... widened portion 6 ... tube 46 ... plastic material 7 ... plate 47 ... screw peak 8 * ... thread bottom Dk ... core diameter 9 ... inner surface Do ... outer diameter 22 ... screw shank ... screw height 23 ... screw P ... axial Intervals 2 4, 3 2 ... dotted line α ... outer ventral angle 25, 36 ... recurved portion 27 ... screw root cold ... inner ventral angle (please read the precautions on the back before filling this page) Zhang scale applicable Chinese National Standard (CNS) A4 size (210 X 297 mm) 15

Claims (1)

i?年丨〕月修正/1正/補充 AS 425 4 6 0i? year 丨] month correction / 1 positive / supplement AS 425 4 6 0 六、申請專利範圍 第88115107號專利申請案申請專利範圍修正本 修正日期:89年11月 (請先閱讀背面之注音?事項再填寫本頁) h —種固定螺釘(1),其係由冷軋產生,其中具有一自攻 螺紋(2,11)以特別螺入熱塑膠中,其中具有概呈連續圓 柱形螺紋底部(8)及具有連續等高之一頂點之螺齒(10) ’相鄰螺齒(10)間之自由空間係在螺紋(2,11)上皆相同 ’其具有下列組合的特徵: 1) 螺紋外徑Do及核心直徑形成Ql=Do/Dk之商數, 量值為1.25至1.65 ; 2) 相鄰螺齒間之轴向間隔p,及螺齒高度η係形成 商數Q2=P/H,量值為2.35至2.7 ; 3) 螺齒的頂角约為30度; 4) 螺釘係由可硬化或精煉鋼構成。 經濟部智慧財產局員工消費合作社印製 2.如申請專利範圍第1項之固定螺釘,其用以螺入塑膠中 ’係具有一自攻螺紋且其螺圈(23)在剖面中略設為刀 刀’其特徵為:螺圈(23)之一腹面(26,28;31/33,34/ 35;37,3 8)具有略位於中央三分之一處之一往内導的反 曲部(25,36),且形成約30度之一外腹角(α)(介於反曲 部25,36與螺峰47之間)及一内腹角(jS )(介於反曲部 25,36與螺根27之間),其中該内腹角(沒)平均概等於或 大於外腹角(α)的1/3。 3_如申請專利範圍第2項之固定螺釘,其特徵為:各情形 中該反曲部(25)設置在一螺圈(23)的僅一腹面(28)上。 4.如申請專利範圍第2項之固定螺釘,其特徵為:各情形 本紙張尺度適用中國國家標準(CNS&gt;A4規格(210 X 297公釐) 166. Application for Patent Scope No. 88115107 Patent Application for Patent Scope Amendment Date of this amendment: November 89 (please read the note on the back? Matters before filling out this page) h — a kind of fixing screw (1), which is made by cold Rolling, which has a self-tapping thread (2,11) specially screwed into the thermoplastic, which has a substantially continuous cylindrical thread bottom (8) and a helical tooth (10) with a continuous apex The free space between adjacent teeth (10) is the same on the threads (2, 11). It has the following characteristics: 1) The outer diameter Do of the thread and the core diameter form the quotient of Ql = Do / Dk. 1.25 to 1.65; 2) the axial distance p between adjacent teeth and the height η of the teeth form the quotient Q2 = P / H, the value is 2.35 to 2.7; 3) the vertex angle of the teeth is about 30 4) The screws are made of hardenable or refined steel. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 2. If the fixing screw of the scope of patent application is No. 1, it is used to screw into the plastic. The knife is characterized in that one of the spiral (23) ventral surface (26, 28; 31/33, 34/35; 37, 38) has a recurve portion that is located in the middle of the center and one inward (25,36), and form an abdomen angle (α) of approximately 30 degrees (between the recurved portion 25,36 and the spiral peak 47) and an inner ventral angle (jS) (between the recurved portion 25) , 36 and snail root 27), in which the internal ventral angle (none) is approximately equal to or greater than 1/3 of the external ventral angle (α). 3_ The fixing screw of item 2 of the scope of patent application, characterized in that the recurved portion (25) is provided on only one ventral surface (28) of a coil (23) in each case. 4. If the fixing screw of the second scope of the patent application is applied, it is characterized by: in each case The paper size applies to the Chinese national standard (CNS &gt; A4 specification (210 X 297 mm) 16 -4 254 6 0 頜 C8 D8 六、 申請專利範圍 中該反曲部(25,36)僅設置在一螺圈(23)的兩腹面 (31/33,34/35)上。 5. 如申請專利範圍第2至4項其中一項之固定螺釘,其特 徵為:該外腹角(0;)在轴段中對稱或不對稱地圍繞該等 螺圈(23)。 6. 如申請專利範圍第2項之固定螺釘,其特徵為:該内腹 角(卢)在轴段中對稱或不對稱地圍繞該等螺圈(23)。 7. 如申請專利範圍第2項之固定螺釘,其特徵為:該螺紋 底部區域中之該等腹面(31,34;37,38)係以一加寬部 (42,43)形式合併入螺根(27),該内腹角(泠)係在該程序 中增加。 --- *---&quot;------裝--------訂-------!'^ (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 17 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐)-4 254 6 0 Jaw C8 D8 6. In the scope of patent application, the recurved portion (25, 36) is only provided on the two abdominal surfaces (31/33, 34/35) of a spiral (23). 5. For the fixing screw of one of the items 2 to 4 of the scope of patent application, the feature is that the external ventral angle (0;) surrounds the spiral rings (23) symmetrically or asymmetrically in the shaft segment. 6. If the fixing screw of the scope of the patent application is item 2, it is characterized in that the inner ventral angle (Lu) surrounds the spiral rings (23) symmetrically or asymmetrically in the shaft section. 7. If the fixing screw of the scope of patent application is No. 2, it is characterized in that the abdominal surfaces (31,34; 37,38) in the bottom area of the thread are merged into the screw in the form of a widened portion (42,43) The root (27), the internal ventral angle (Ling) system is increased in this procedure. --- * --- &quot; ------ Install -------- Order -------! '^ (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 17 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)
TW088116088A 1997-07-29 1999-09-17 Fastening screw TW425460B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE1997132652 DE19732652A1 (en) 1997-07-29 1997-07-29 Cold-rolled self-tapping screw for screwing into plastics
DE1997132636 DE19732636A1 (en) 1997-07-29 1997-07-29 Cold-rolled screw
DE1997132615 DE19732615A1 (en) 1997-07-29 1997-07-29 Cold-rolled self-tapping screw for use with thermoplastics
PCT/EP1998/004720 WO1999006719A1 (en) 1997-07-29 1998-07-28 Self tapping screw
PCT/EP1998/004719 WO1999006715A2 (en) 1997-07-29 1998-07-28 Self tapping screw

Publications (1)

Publication Number Publication Date
TW425460B true TW425460B (en) 2001-03-11

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Application Number Title Priority Date Filing Date
TW088116088A TW425460B (en) 1997-07-29 1999-09-17 Fastening screw

Country Status (1)

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TW (1) TW425460B (en)

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