1334835 -九、發明說明： - 【發明所屬之技術領域】 本發明係關於一種取代以往子、母螺鎖組件構造的盲孔螺 栓，以及配合使用該盲孔螺栓之曲柄與齒盤單元組。 【先前技術】 按由子母螺鎖組件是包含有螺母件與子螺栓件，經常應用 於產品之組裝，比如自行車的齒盤與曲柄之連結即是透過子母螺 鎖組件構造。如第七圖所示，圖中顯示齒盤組（30)是包含一大齒 φ 盤與一小齒盤，而曲柄（20) —端延伸數爪片（21)，用以爪片（21) 夾合於大齒盤與小齒盤之間，為連結齒盤組（30)與曲柄（20)，曲 柄（20)與齒盤組（30)在設定處對準穿設有孔洞，於該孔洞以業界 慣用的子母螺鎖組件來螺鎖迫緊。如第七、八圖所示，其中子螺 栓件（50)為中空體，中空處形成内六角孔（51)，而外側為外螺 紋；對應子螺栓件（50)，於齒盤組（30)底側設置一中空狀的螺母 件（60)，螺母件（60)呈中空之内側為内螺紋。因而子螺栓件（50) 與螺母件（60)分置於上、下側以對準曲柄（20)與齒盤組（30)對應 孔洞，以工具驅動子螺栓件（50)螺鎖進入螺母件（60)内，達到迫 ® 緊曲柄（20)與齒盤組（30)之目的。 運用行之有年的子母螺鎖組件，由於螺母件（60)與子螺栓 件（50)均為中空，所以齒盤組（30)、曲柄（20)安裝於自行車之 後，因此在齒盤組（30)端面會看到子螺栓件（50)的内六角孔，視 覺上欠缺美觀性，難以提高產品的精美性與附加價值；且子母螺 鎖式結構較複雜，易由内六角孔處侵入並淤積泥沙，更易造成銹 蚀等問題； 由於許多產品包括自行車都以輕量化為趨勢，組裝過程因 5 1334835 為螺母件（60)與子螺栓件（5〇)要分置於齒盤組（3〇)兩相對外側 .面，螺鎖組件數目多，相對也會增加產品重量。 【發明内容】 本發明鑑於子母螺鎖組件的問題’因此本於多年從事相關 技術與經驗，詳加設計與評估，而提供一種盲孔螺栓，其主要目 的乃在改變子母螺鎖件的螺合而迫緊的手段，而以盲孔型態的螺 栓直接螺鎖於結合物上，無須如同以往需要另外設置螺母件來配 合子螺栓件的手段構造。 φ 為達成本發明前述之目的，本發明的技術手段主要係在提 供種盲孔螺栓，其主要係該盲孔螺栓具有一頭部、一自頭部一 端轴向延伸的身部，其中： 該頭部為封閉面； 該身部為柱狀，其外側面具外螺紋，在相反於該頭部之一 端是端部，該端部沿軸向形成一供工具插合以轉動的板動槽。 依據本發明技術手段所達成之功效可如下所述·· 卜本發明使盲孔螺检具有—無穿孔、無六角槽的封閉面， 封閉面亦可刻示相關商標的圖案、文字，因此盲孔螺栓利用外螺 籲紋螺合於被結合物之後，外觀看到的封閉面便在視覺上產生舒 服、美觀的精敏感，無形中提高產品附加價值，強化市場的競爭 力，且藉該封閉面與結構較簡單之故，可減少泥沙所造成之銹蝕。 2、 本發明改變以往子母螺鎖組件的元件構成，無須螺母 件，因此組裝於產品後，得以適度降低重量，讓產品更形輕量化。 3、 頭部有封閉面的大面積供選擇，使刻示圖案内容豐富性 較不受限於小面積。 【實施方式】 本發明係關於-種盲孔螺检，請參看第一圓所示，本發明 6 1334835 .之螺栓係具有一頭部（10)、一自頭部（10) 一端接續轴向延伸的身 •部（14) ’圖中所見的頭部（10)係為封閉面據以構成盲孔，身 部（14)形成外螺紋（15)。 請再參看第一至三圖’進一步說明本發明之較佳實施例， 其中本發明之螺栓’其頭部（10)是為實心的封閉面（11)，封閉面 (11)輪廓外形可為任意型態，可為圓形，不局限於六角形或四角 形，而封閉面（11)上任意範圍可設置刻示區U2)，刻示區（12) 是刻示商標的圖案、文字或是螺栓尺寸規格，而頭部（1〇)外徑是 大於身部（14)外徑；以及 ® 該身部（14)是為柱狀，於外側面形成外螺紋（15)，身部（14) 不同於頭部（10)的一端是端部（16)，自端部（16)之端面沿軸向形 成一凹槽狀的扳動槽（17)，扳動槽（17)的斷面係配合工具對慮插 入並且扳動的形狀，比如扳動槽（17)設為内六角形，位於封閉面 (11)相反一端，此如第二圖所見。 適用本發明來實施的技術可應用多種產業，因此在供本發 明盲孔螺栓結合至少二被結合物，第一被結合物接觸於頭部（1〇) 而可設置沈頭孔或是穿孔均可，第二被結合物則設置内螺孔以對 Φ應接合外螺紋（15)，如果包含有三者被結合物，則於第三被結合 物相對於外螺紋（15)位置，是設置為内螺孔。 本發明之第四至六圖的實施例，係以齒盤單元（3〇)、曲柄 (20)之結合適用本發明盲孔螺栓者。其中齒盤單元係至少包 含一齒盤，於本實施例該齒盤單元（3〇)是包含一第一齒盤（31) 與一第二齒盤（32)，曲柄（20) —端延伸數爪片（21)，利用爪片（21) 夾合於第一齒盤（31)與第二齒盤（32)之間，因此齒盤單元（3〇) 與曲柄（20)共為三者的被結合物；而為連結齒盤單元（3〇)與曲柄 (20)爪片（21)與齒盤單元（3〇)在設定處對準穿設有孔洞，分別 7 1334835 是第一齒盤（31)者為沈頭孔（311)，爪片（21)則穿設為穿孔 (21)，齒盤單元（30)選擇第二齒盤（31)為被結合物，於對應沈頭 孔（311)、穿孔（21)係設為内螺孔（33)，内螺孔（33)係對應螺合 身部（14)的外螺紋（15)。 接下來如第二、四、六圖所示，將本發明之螺栓自沈頭孔 (311)、穿孔（21)放入後，配合工具（40)對準扳動槽（17)凹凸卡 合，以逆時針方向施力轉動本發明之螺栓，造成外螺紋（15)沿内 螺孔（33)内螺合進入，進而達到迫緊齒盤單元（30)與曲柄（20) 結合之目的，無須另外配合螺母件。 如此一來，本發明如第四、五圖所示，組合後的齒盤單元 (30)與曲柄（20)，自安裝曲柄（20)的端面方向來看，是不同於以 往露孔的型態，只看到封閉面（11)，視覺十分美觀舒服，而封閉 面（11)刻示區（12)則可加強顯示商品廣告之效果。 由上述說明僅為用以解釋本發明之較佳實施例，並非企圖 據以對本發明做任何形式上之限制，是以，凡有在相同之發明精 神下所做有關本發明之任何修飾或變更者，仍應包括在本發明意 圖保護之範疇内，其中如該第一齒盤係可將沈頭孔改設為穿孔。 綜上所述，本發明完全符合產業發展及利用，所揭之發明 技術内容是前所未有的創新，合於專利法關於發明專利要件之規 定，乃依法提出專利申請，並敬請鈞局早日審查，並給予肯定。 8 1334835 【圖式簡單說明】 第一圖係本發明較佳實施之立體圖。 第二圖係本發明較佳實施之另一角度立體圖’用以顯示扳動 槽所在位置。 第三圖係本發明較佳實施之剖視立體圖。 第四圖係本發明較佳實施之應用於齒盤單元與曲柄結合的立 體圖。 Ή σ1334835 - IX. DESCRIPTION OF THE INVENTION: - TECHNICAL FIELD OF THE INVENTION The present invention relates to a blind hole bolt that replaces the construction of a conventional child and female screw assembly, and a crank and a toothed disk unit group that cooperates with the blind hole bolt. [Prior Art] The nut-locking assembly is composed of a nut member and a sub-bolt member, and is often applied to the assembly of a product. For example, the connection between the toothed disc and the crank of the bicycle is constructed by a nut-nut-locking assembly. As shown in the seventh figure, the figure shows that the sprocket set (30) includes a large tooth φ disk and a small spur disk, and the crank (20) ends the number of claw pieces (21) for the claw piece (21). ) is sandwiched between the large toothed disc and the small toothed disc, and is connected to the set of toothed discs (30) and the crank (20). The crank (20) and the set of the toothed discs (30) are aligned with the holes at the setting. The hole is screwed tightly with the industry's usual female nut lock assembly. As shown in the seventh and eighth figures, wherein the sub-bolt member (50) is a hollow body, the hexagonal hole (51) is formed in the hollow portion, and the outer side is the external thread; the corresponding sub-bolt member (50) is in the set of the toothed plate (30). A hollow nut member (60) is disposed on the bottom side, and the nut member (60) has an internal thread on the inner side of the hollow. Therefore, the sub-bolt member (50) and the nut member (60) are respectively placed on the upper and lower sides to align the corresponding holes of the crank (20) and the sprocket set (30), and the tool drive sub-bolt member (50) is screwed into the nut. In the piece (60), the purpose of the forced cranking (20) and the chainring (30) is achieved. Since the nut-locking assembly has been used for many years, since the nut member (60) and the sub-bolt member (50) are both hollow, the toothed disc group (30) and the crank (20) are mounted behind the bicycle, and thus the toothed disc The end face of the group (30) will see the hexagonal hole of the sub-bolt piece (50), which is visually lacking in aesthetics, and it is difficult to improve the exquisiteness and added value of the product; and the nut-locking structure is more complicated and easy to be hex socket Intrusion and siltation, which is more likely to cause rust and other problems; Since many products, including bicycles, tend to be lighter, the assembly process is divided into teeth by the nut member (60) and the sub-bolt member (5〇). The two sets of opposite sides of the disc set (3〇) have a large number of screw lock components, which will increase the weight of the product. SUMMARY OF THE INVENTION The present invention has been made in view of the problems of the female nut lock assembly. Therefore, the related art and experience have been extensively designed and evaluated for many years, and a blind hole bolt is provided, the main purpose of which is to change the nut screw of the female nut. The means of screwing and pressing, and the bolts of the blind hole type are directly screwed to the joint, without the need to separately provide a nut member to cooperate with the bolt member. φ In order to achieve the foregoing object of the present invention, the technical means of the present invention mainly provides a blind hole bolt, which mainly has a head and a body extending axially from one end of the head, wherein: The head is a closed surface; the body is columnar, and the outer side of the mask is externally threaded, and at one end opposite to the head is an end portion which axially forms a plate groove for the tool to be inserted for rotation. The effect achieved by the technical means of the present invention can be as follows: · The invention enables blind hole inspection to have a closed surface without perforations and no hexagonal grooves, and the closed surface can also indicate the pattern and text of the relevant trademark, thus blind After the hole bolt is screwed to the conjugate, the closed surface seen by the appearance will be visually comfortable and beautiful, which will increase the added value of the product and strengthen the competitiveness of the market. The surface and structure are simpler, which can reduce the corrosion caused by sediment. 2. The present invention changes the component composition of the conventional female nut lock assembly, and does not require a nut member. Therefore, after being assembled into the product, the weight can be appropriately reduced, and the product can be more lightweight. 3. The large area of the head with a closed surface is available for selection, so that the enrichment of the engraved pattern content is not limited to a small area. [Embodiment] The present invention relates to a type of blind hole screw inspection. Referring to the first circle, the bolt of the present invention has a head (10) and an end from the head (10). The extended body (14) 'The head (10) seen in the figure is a closed face to form a blind hole, and the body (14) forms an external thread (15). Referring to FIGS. 1 to 3 again, a preferred embodiment of the present invention will be further described, wherein the head (10) of the bolt of the present invention is a solid closed surface (11), and the contour of the closed surface (11) can be Any type, which may be a circle, is not limited to a hexagon or a quadrangle, and any area on the closed surface (11) may be provided with a marking area U2), and the marking area (12) is a trademark pattern, a text or Bolt size specification, while the outer diameter of the head (1〇) is larger than the outer diameter of the body (14); and the body (14) is columnar, forming external threads (15) on the outer side, body (14 The end of the head (10) is an end portion (16), and a groove-shaped pulling groove (17) is formed in the axial direction from the end surface of the end portion (16), and the section of the groove (17) is pulled. The shape of the fitting tool is inserted and pulled, for example, the pulling groove (17) is set to an inner hexagon shape, and is located at the opposite end of the closing surface (11), as seen in the second figure. The technology to be implemented by the present invention can be applied to various industries. Therefore, in the blind hole bolt of the present invention, at least two conjugates are combined, and the first conjugate is contacted with the head (1 〇) and a countersunk hole or a perforation can be provided. Alternatively, the second conjugate is provided with an internal screw hole to engage the external thread (15) for Φ, and if the three conjugates are included, the position of the third conjugate relative to the external thread (15) is set to Inner screw hole. The embodiments of the fourth to sixth embodiments of the present invention are applied to the blind hole bolt of the present invention in combination with a combination of a toothed disc unit (3 turns) and a crank (20). The toothed disk unit includes at least one toothed disk. In the embodiment, the toothed disk unit (3〇) comprises a first toothed disk (31) and a second toothed disk (32), and the crank (20) extends at the end. The number of claw pieces (21) is sandwiched between the first chainring (31) and the second chainring (32) by the claw piece (21), so that the chainring unit (3〇) and the crank (20) are three in total The conjugated body; and the connecting sprocket unit (3 〇) and the crank (20) claw piece (21) and the sprocket unit (3 〇) are aligned with the hole at the setting, respectively, 7 1334835 is the first The toothed disc (31) is a countersunk hole (311), the claw piece (21) is pierced as a perforation (21), and the toothed disc unit (30) selects the second toothed disc (31) as a combined object, correspondingly sinking The head hole (311) and the through hole (21) are set as inner screw holes (33), and the inner screw holes (33) correspond to the external threads (15) of the screw body portion (14). Next, as shown in the second, fourth, and sixth figures, the bolt of the present invention is placed in the countersunk hole (311) and the through hole (21), and the fitting tool (40) is aligned with the pulling groove (17) to engage the concave and convex. Rotating the bolt of the present invention in a counterclockwise direction causes the external thread (15) to be screwed into the inner screw hole (33), thereby achieving the purpose of tightening the combination of the toothed disc unit (30) and the crank (20) without Also with the nut parts. In this way, as shown in the fourth and fifth figures, the combined toothed disc unit (30) and the crank (20) are different from the conventional open-hole type in view of the end face direction of the mounting crank (20). In the state, only the closed surface (11) is seen, the vision is very beautiful and comfortable, and the enclosing area (11) engraving area (12) can enhance the effect of displaying the merchandise advertisement. The above description is only for the purpose of explaining the preferred embodiments of the present invention, and is not intended to limit the invention in any way. It should still be included within the scope of the claimed invention, wherein the first sprocket can be modified to be a perforation. In summary, the present invention fully conforms to the development and utilization of the industry, and the technical content of the invention disclosed is an unprecedented innovation. In accordance with the provisions of the Patent Law on the requirements for invention patents, the patent application is filed according to law, and the bureau should be reviewed at an early date. And give it affirmation. 8 1334835 BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a perspective view of a preferred embodiment of the present invention. The second drawing is a perspective view of another preferred embodiment of the present invention for displaying the position of the triggering groove. The third drawing is a cross-sectional perspective view of a preferred embodiment of the present invention. The fourth figure is a perspective view of a preferred embodiment of the present invention applied to a combination of a toothed disc unit and a crank. Ή σ
第五漏本發明較佳實施之應用於齒盤單元與曲柄結合的立 體局部放大圖。 第六圖係本發明較佳實狀制於絲單元與曲柄結合的剖 立體圖。 立體局部分解圖。 第七圖係現有齒盤單元與曲柄結合的 第八圖係現有齒盤單元與曲柄結合的 【主要元件符號說明】 (10)頭部 （11)封閉面 (12)刻示區 （14)身部Fifth Leakage A preferred embodiment of the present invention is applied to a partially enlarged view of a body in which a toothed disc unit is coupled to a crank. The sixth drawing is a cross-sectional perspective view of the present invention in which the wire unit is combined with the crank. Stereoscopic partial exploded view. The seventh figure is the eighth figure of the existing toothed disc unit combined with the crank. The main gear unit is combined with the crank. [Main component symbol description] (10) Head (11) closed surface (12) engraved area (14) unit
(15)外螺紋 （16)端部 (17)扳動槽 (20)曲柄 （21)爪片 (211)穿孔 (30)齒盤單元（31)第一齒盤 (311)沈頭孔 （32)第二齒盤 (33)内螺孔 (40)工具 (50)子螺栓件（51)内六角孔 (60)螺母件 9(15) External thread (16) End (17) Pulling groove (20) Crank (21) Claw piece (211) Perforation (30) Cutter unit (31) First tooth plate (311) Counterbore (32) ) Screw hole (40) in the second chainring (33) Tool (50) Bolt member (51) Hexagon socket (60) Nut member 9