201033484 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種盲螺帽，進一步而言，係關於一種單 側緊固型的盲螺帽。 【先前技術】 、例如，於日本特開2004_11876號公報及日本特開2〇〇4_ 211826號，揭示有先前之單側緊固型盲螺帽之—例。參照 圖3、圖4’簡單說明該等先前例之盲螺帽之構造及該等先 • 前例之盲螺帽朝被安裝構件之緊固方法。 圖3係顯示先前之盲螺帽5〇之緊固前狀態之剖面圖，圖4 係顯示緊固後狀態之剖面圖。盲螺帽5〇包含可塑性變形之 管狀部55、形成於管狀部55之一端之突緣杳…，及形成於 與突緣部57成相反側之管狀部55之另—端之螺紋部^。 實際使用時，盲螺帽5〇以預先緊固於被安裝構件1〇之狀 態使用。相對於預先緊固之該被安裝構件1〇，利用盲螺帽 50與螺栓7〇安裝其他構件。盲螺帽觀管狀部叫薄壁且 瞥 t空，朝被緊固構件Π)之預先緊固時可利用作為變曲部分 66 ° 於突緣部57設置與管狀部55之中空部分58連通之開口 56’通過該開口 56,可將螺栓7〇裝入中空部分％。突緣部 57之外徑設定為比被安裝構件1〇 (參照圖2)之安裝孔u 之直徑大，藉此，防止盲螺帽5〇從安裝孔丨丨脫落。 。作為整體為同徑 口 56連通之螺紋孔 螺紋部5 3作為螺入螺栓7 〇之部分使用 圓筒部，於内部形成與突緣部57之開 145268.doc 201033484 59。於螺紋孔59之表面54切削螺紋，藉由使通過開口 56裝 入之螺栓70之螺紋切削部分74對應於該螺紋切削部分w , 可螺合螺栓70。 ^ 螺紋部53比管狀部55壁厚，被賦予剛性。因此，緊固盲 螺帽50於被安裝構件1〇時，不會與管狀部55一起彎曲。螺 紋部53之外徑與緊固前之管狀部乃之外徑為相同尺寸，該 等尺寸比安裝孔11之直徑略小。藉由為如此之尺寸，盲螺 帽50以面接觸突緣部57之狀態，插入被安裝構件之安裝 孔11 ’成為卡住於其處之狀態。 藉由使用專用工具使管狀部55彎曲，於管狀部55之彎曲 部分66與突緣部57之間夾持被安裝構件1〇，將盲螺帽5〇緊 固於被安裝構件ίο。此時，螺紋部53固定於突緣部57之跟 前附近》 緊固盲螺帽於被安裝構件之方法，如前述公報中亦有詳 述般已為公知。簡單說明，首先，藉由使專用緊固工具 (未圖示）之尖端前端螺合於螺紋部53之螺紋切削部分 54，保持螺紋部53於尖端。之後，藉由啟動緊固工具，將 尖端前端之螺紋部分53向尖端後方以強力拔出，將螺紋部 53向突緣部57側強力提拉。其結果，從螺紋部53之前端附 近施加強提拉力，管狀部55之薄壁之中空部分58以於被安 裝構件10之背面膨徑之方式塑性變形。藉此，如圖4所 示’膨徑之彎曲部分66於鄰接於被安裝構件1〇之背面之部 分遍及管狀部55之全周形成。藉由彎曲部分66與突緣部57 使盲螺帽50緊密緊固於被安裝構件10,使螺紋部53固著於 145268.doc 201033484 被安裝構件1 0。 [專利文獻1]曰本特開2004-11876號公報 [專利文獻2]日本特開2004-211826號 【發明内容】 [發明所欲解決之問題] 如前述說明’相對於被安裝構件10之盲螺帽5〇之緊固， 雖利用螺紋部53之螺紋切削部分54進行，但為達到承受緊 固力之螺紋強度，與緊固工具之關係上，一般考慮螺紋切 削部分54之螺紋圈有必要為7圈〜8圈左右。其結果，對於 盲螺帽50而言，如此之長度部分（例如圖4所示之長度部分 「b」）為必須之長度部分。此外，根據前述安裝方法，構 造上之空間「a」必然產生，盲螺帽50至少具有該等必須 之長度部分與對應於構造上之空間之長度部分之合計長 度，即具有「a+b」。如此之長盲螺帽5〇係妨礙母材内部之 其他構造物之設置，又妨礙裝置之小型化等不佳者。 此外，如此之先前之盲螺帽50之構造，對於螺栓而言亦 非較好狀況。因為，為將螺栓70螺入如此之先前之盲螺帽 5〇,使螺栓70之螺紋切削部分74到達盲螺帽5〇之螺紋切削 部分54,對應於構造上之空間「aj之多餘之長度部分將201033484 VI. Description of the Invention: [Technical Field] The present invention relates to a blind nut, and further relates to a blind nut of a single-sided fastening type. [Prior Art] A conventional one-side fastening type blind nut is disclosed, for example, in Japanese Laid-Open Patent Publication No. 2004-11876 and Japanese Patent Application Laid-Open No. Hei No. Hei. The construction of the blind nut of the prior art and the fastening method of the blind nut of the prior art to the mounted member will be briefly described with reference to Figs. 3 and 4'. Fig. 3 is a cross-sectional view showing the state before fastening of the previous blind nut 5, and Fig. 4 is a cross-sectional view showing the state after fastening. The blind nut 5 includes a plastically deformable tubular portion 55, a flange formed at one end of the tubular portion 55, and a threaded portion formed at the other end of the tubular portion 55 on the side opposite to the flange portion 57. In actual use, the blind nut 5 is used in a state of being fastened to the member to be mounted 1 预先 in advance. The other members are mounted by the blind nut 50 and the bolt 7 相对 with respect to the member to be mounted 1 预先 pre-fastened. The blind nut view tubular portion is called thin wall and is hollow, and can be used as the curved portion 66 ° in the flange portion 57 to be in communication with the hollow portion 58 of the tubular portion 55 in the pre-fastening of the fastened member Π). Through the opening 56, the opening 56' can be used to fit the bolt 7 into the hollow portion %. The outer diameter of the flange portion 57 is set to be larger than the diameter of the mounting hole u of the member to be mounted 1 (see Fig. 2), whereby the blind nut 5 is prevented from coming off the mounting hole. . The threaded hole that communicates with the same diameter 56 as a whole is used as the screwing portion 7 〇, and the cylindrical portion is used to form the opening portion 145268.doc 201033484 59. The thread is cut on the surface 54 of the threaded hole 59, and the threaded cutting portion 74 of the bolt 70 which is inserted through the opening 56 corresponds to the thread cutting portion w, and the bolt 70 can be screwed. The threaded portion 53 is thicker than the tubular portion 55 and is given rigidity. Therefore, the fastening blind nut 50 does not bend together with the tubular portion 55 when the member to be mounted 1 is folded. The outer diameter of the threaded portion 53 is the same as the outer diameter of the tubular portion before fastening, and the size is slightly smaller than the diameter of the mounting hole 11. With such a size, the blind nut 50 is inserted into the mounting hole 11' of the mounted member in a state of being in contact with the flange portion 57. The tubular member 55 is bent by using a special tool, and the member to be mounted 1 is clamped between the curved portion 66 of the tubular portion 55 and the flange portion 57, and the blind nut 5 is clamped to the member to be mounted. At this time, the screw portion 53 is fixed to the vicinity of the front edge portion 57. The method of fastening the blind nut to the member to be mounted is also known in detail in the above-mentioned publication. Briefly, first, the threaded portion 53 is held at the tip end by screwing the tip end of the dedicated fastening tool (not shown) to the thread cutting portion 54 of the threaded portion 53. Thereafter, by screwing the fastening tool, the threaded portion 53 of the tip end is strongly pulled out toward the rear of the tip end, and the threaded portion 53 is strongly pulled toward the flange portion 57 side. As a result, a strong pulling force is applied from the vicinity of the front end of the threaded portion 53, and the thin-walled hollow portion 58 of the tubular portion 55 is plastically deformed so as to be expanded by the back surface of the mounting member 10. Thereby, as shown in Fig. 4, the curved portion 66 of the expanded diameter is formed over the entire circumference of the tubular portion 55 at a portion adjacent to the back surface of the member to be mounted 1〇. The blind nut 50 is tightly fastened to the member to be mounted 10 by the curved portion 66 and the flange portion 57, and the threaded portion 53 is fixed to the member to be mounted 10b. [Patent Document 1] JP-A-2004-11876 [Patent Document 2] JP-A-2004-211826 [Disclosure] [Problems to be Solved by the Invention] As described above, "blind with respect to the member to be mounted 10" The tightening of the nut 5 is performed by the thread cutting portion 54 of the threaded portion 53, but in order to achieve the thread strength for receiving the fastening force, it is generally necessary to consider the thread of the thread cutting portion 54 in relation to the fastening tool. For 7 laps ~ 8 laps or so. As a result, for the blind nut 50, such a length portion (e.g., the length portion "b" shown in Fig. 4) is a necessary length portion. Further, according to the above-described mounting method, the space "a" in the construction is inevitably generated, and the blind nut 50 has at least the total length of the necessary length portion and the length portion corresponding to the space of the structure, that is, has "a+b" . Such a long blind nut 5 is a hindrance to the arrangement of other structures inside the base material and hinders the downsizing of the device. Moreover, the construction of such a prior blind nut 50 is also not a good condition for the bolt. Because, in order to screw the bolt 70 into such a previous blind nut 5, the thread cutting portion 74 of the bolt 70 reaches the thread cutting portion 54 of the blind nut 5, corresponding to the excess space of the structural space "aj" Part will
成為必要D 本申請案之發明係為解決該等先前技術之問題點而完成 者，其目的在於藉由使盲螺帽之螺紋部接近螺拴之安裝位 置’而謀求盲螺帽之省蝴匕，且無須為適合螺紋部：螺 紋切削部分而無意義地成為長螺拴。 145268.doc 201033484 [解決問題之技術手段] 本發明提供—種盲螺帽，其特徵在於·· 變形之管狀部、形成於該管狀部之—端之突有了塑性 =與該突緣部成相反側之前述管狀部之另—端側之螺2 緣部，為裝入螺固於前述盲螺帽之螺=有=述； 中空部分連通之開口，前述螺紋部係螺入二:： 述螺紋部之内部’形成有與前 之 二及則0狀部之中空部分連通之螺紋孔，可開 則述開口裝入之前述螺栓之螺紋切削部分 紋孔表面之螺紋切削部分，以使前述螺栓螺人，、前 =管狀部壁厚’且於靠近前述突緣部二::： 述螺紋部之端部附近，於前述管 側之前 之外壁之間形成環狀鏠隙。 之内壁與則述螺紋部 於前述盲螺帽中，前述盲螺帽宜—體成形 於前述盲螺帽中，前述螺紋部亦 ：：， 部之開口成前端較細。 夕:"、朝向前述突緣 於前述盲螺帽中，前述縫隙亦可嘹 之開口之側，比遠離前述突緣；;疋為靠近前述突緣部 [發明之效果] '之開口之側大。 根據本申請案之發明，可謀求盲 、 有效利用螺栓長。 ’、目之省空間化’又可 【實施方式】 以下，參照所附圖式， 對本發明 之—較好實施形態進行 145268.doc 201033484 說明。圖1、圖2係分別對應於前述說明之圖3、圖4之圖， 圖1係顯示本發明之盲螺帽20之緊固前狀態之剖面圖，圖2 係顯示緊固後狀態之剖面圖。 盲螺帽20具有可塑性變形之中空之管狀部&形成於該 官狀部25之—端之突緣部27,及形成於與突緣部27成相反 側之管狀部25之另一端側之螺紋部23。 盲螺帽20係以可塑性變形之材料—體成形。作為材質，It is necessary to complete the invention of the prior art, and the object of the invention is to solve the problems of the prior art, and the object is to save the blind nut by making the threaded portion of the blind nut close to the mounting position of the screw. And it is not necessary to be suitable for the threaded portion: the thread cutting portion and meaninglessly becomes the long thread. 145268.doc 201033484 [Technical means for solving the problem] The present invention provides a blind nut, characterized in that the deformed tubular portion is formed at the end of the tubular portion and has a plasticity = formed with the flange portion On the opposite side of the other end portion of the tubular portion, the edge of the screw 2 is a screw that is screwed to the blind nut; the opening of the hollow portion is communicated, and the threaded portion is screwed into the second: The inner portion of the threaded portion is formed with a threaded hole communicating with the hollow portion of the first two and the zero portion, and the thread cutting portion of the surface of the thread cutting portion of the bolt is inserted into the opening to make the bolt In the vicinity of the end portion of the threaded portion, an annular annular gap is formed between the outer wall of the threaded portion. The inner wall and the threaded portion are in the blind nut, and the blind nut is preferably formed in the blind nut, and the threaded portion is also :: the opening of the portion is thinner at the front end.夕:", toward the aforementioned flange in the blind nut, the slit may also be on the side of the opening, farther away from the flange; 疋 is close to the side of the opening of the flange portion [effect of the invention] Big. According to the invention of the present application, it is possible to blindly and effectively utilize the length of the bolt. </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> <RTIgt; 1 and 2 are respectively a view corresponding to FIG. 3 and FIG. 4 of the foregoing description, FIG. 1 is a cross-sectional view showing a state before fastening of the blind nut 20 of the present invention, and FIG. 2 is a cross-sectional view showing a state after fastening. Figure. The blind nut 20 has a plastic tubular portion that is plastically deformable, a flange portion 27 formed at an end of the official portion 25, and a other end side of the tubular portion 25 formed on the opposite side of the flange portion 27. Threaded portion 23. The blind nut 20 is formed from a plastically deformable material. As a material,
可使用例如銘或鋼等金屬，但只要可塑性變形並不局限於 金屬而亦可為其他材質。因為一體成形，故無盲螺帽之元 件脫落等憂慮。 管狀。P 25比其他部分壁薄。因其壁薄，將盲螺帽緊固 於被安裝構件1G時’可利用作為彎曲部分％ ^管狀部^雖 於緊固前作為大的中空部分28形成，但緊固後成為由螺紋 部23占有之狀態。 於突緣部27，S置有與管狀部25之中空部分28連通之開 26螺栓40經由该開口 26裝入盲螺帽2〇。突緣部27之外 徑設定為比被安裝構件1〇(參照圖2)之安裝孔丨丨之直徑大， 藉此，可防止從被安裝構件1〇之安裝孔丨丨脫落。 螺紋部23作為螺入螺栓4〇之部分使用。整體為大致圓筒 形狀，但成為向突緣部27之開口 26突起之形狀，又，前端 較細而於縱剖面視中為梯形形狀。於螺紋部23之内部形 成有與突緣部27之開口 26及管狀部25之中空部分28連通之 螺紋孔29，於其表面24被切削螺紋。藉由使通過開口 26裝 入之螺栓40之螺紋切削部分44對應於該螺紋切削部分24， 145268.doc 201033484 可使螺栓40螺合。 螺紋部23比管狀部25壁厚，被賦予剛性。因此，緊固盲 螺巾目20於被安裝構件1〇時，不會與管狀部25一起彎曲。螺 紋部23之根部附近之最大外徑與緊固前之管狀部25之外徑 為相同尺寸，該尺寸比安裝孔u之直徑略小。藉由為如此 之尺寸，盲螺帽20以面接觸突緣部27之狀態，插入被安裝 構件10之安裝孔U’成為卡住於其處之狀態。另一方面， 螺紋部23之前端附近，換言之，靠近突緣部27之開口 26之 側之螺紋部23之端部附近之最小外徑，設定為比緊固前後 之管狀部25之内徑略小，藉此，於螺紋部23之前端附近， 管狀部25之内壁35與螺紋部23之外壁33之間形成環狀縫隙 30因螺紋部23形成為朝向突緣部27之開口 26成前端較 細丄故該缝隙30設定為朝向突緣部27之開口 ％側較大，再 換σ之#近犬緣部27之開口 26之側之縫隙部分3〇a ,比 遠離突緣部27之開口 26之側之縫隙部分3〇b大。 將盲螺帽20緊固於被安裝構件1Q時，以專用緊固工具使 管狀部25弯曲，於管狀部25之彎曲部分^與突緣㈣之間 夹持被安裝構件10。又，與此同時，可利用縫隙使螺紋 部23進入管狀部25之中空部分28並向突緣部27側推提，於 突緣部27之開口 26附近定位螺紋部23。如此，藉由使螺紋 部23進入管狀部25之中空部分28，換言之，進入盲螺帽2〇 之構k上之工間a」，可謀求盲螺帽之省空間化且將螺 合螺栓之螺紋部23定位於突緣部27之開口 ^附近，亦無 須為使螺栓之螺紋切削部分44與螺紋部此螺紋切削部分 145268.doc 201033484 24適合而無意義地加長螺栓。 又，本發明之盲螺帽2〇係關於單側緊 :，與盲螺帽2。之主體形狀或突緣部27之形狀無關。因 又’突_之形狀亦可為例如平頭角 本發明之盲螺帽20,亦可適用於如_栓般 之製品，此外，通過進-步提高螺紋部 23之犬起，亦可應用作為墊片螺帽。A metal such as a metal or a steel may be used, but other plastic materials may be used as long as the plastic deformation is not limited to metal. Because it is integrally formed, there is no concern that the components of the blind nut fall off. Tubular. P 25 is thinner than the other parts. Because the wall is thin, when the blind nut is fastened to the member to be mounted 1G, it can be utilized as a curved portion. The tubular portion is formed as a large hollow portion 28 before fastening, but becomes a threaded portion 23 after fastening. The state of possession. The flange portion 27, S is placed in communication with the hollow portion 28 of the tubular portion 25. The bolt 26 is inserted into the blind nut 2 through the opening 26. The outer diameter of the flange portion 27 is set to be larger than the diameter of the mounting hole 被 of the member to be mounted 1 (see Fig. 2), whereby the mounting hole of the member to be attached 1 can be prevented from coming off. The threaded portion 23 is used as a portion that is screwed into the bolt 4〇. The overall shape is a substantially cylindrical shape, but it has a shape that protrudes toward the opening 26 of the flange portion 27. Further, the tip end is thin and has a trapezoidal shape in a longitudinal section. A threaded hole 29 is formed in the threaded portion 23 to communicate with the opening 26 of the flange portion 27 and the hollow portion 28 of the tubular portion 25, and the surface 24 is threaded. The threaded portion 44 of the bolt 40 that is inserted through the opening 26 corresponds to the thread cutting portion 24, 145268.doc 201033484, and the bolt 40 can be screwed. The threaded portion 23 is thicker than the tubular portion 25 and is given rigidity. Therefore, the fastening blind scarf 20 does not bend together with the tubular portion 25 when the member to be mounted 1 is folded. The maximum outer diameter near the root of the threaded portion 23 is the same as the outer diameter of the tubular portion 25 before fastening, which is slightly smaller than the diameter of the mounting hole u. With such a size, the blind nut 20 is inserted into the mounting hole U' of the mounting member 10 in a state of being in contact with the flange portion 27 in a state of being in contact with the flange portion 27. On the other hand, the minimum outer diameter near the front end of the threaded portion 23, in other words, the vicinity of the end portion of the threaded portion 23 on the side close to the opening 26 of the flange portion 27, is set to be slightly smaller than the inner diameter of the tubular portion 25 before and after the fastening. Therefore, an annular slit 30 is formed between the inner wall 35 of the tubular portion 25 and the outer wall 33 of the threaded portion 23 in the vicinity of the front end of the threaded portion 23, and the threaded portion 23 is formed to face the opening 26 of the flange portion 27 as a front end. Therefore, the slit 30 is set to be larger toward the opening % side of the flange portion 27, and the slit portion 3〇a on the side of the opening 26 of the near-dog portion 27 of the σ is further changed than the opening away from the flange portion 27. The slit portion 3〇b on the side of 26 is large. When the blind nut 20 is fastened to the member to be mounted 1Q, the tubular portion 25 is bent by a special fastening tool, and the member to be mounted 10 is sandwiched between the curved portion of the tubular portion 25 and the flange (4). Further, at the same time, the screw portion 23 can be made to enter the hollow portion 28 of the tubular portion 25 by the slit and pushed toward the flange portion 27 side, and the screw portion 23 can be positioned near the opening 26 of the flange portion 27. Thus, by inserting the threaded portion 23 into the hollow portion 28 of the tubular portion 25, in other words, entering the work space a" on the structure of the blind nut 2, it is possible to save space for the blind nut and to screw the bolt The threaded portion 23 is positioned near the opening of the flange portion 27, and it is not necessary to lengthen the bolt in order to fit the threaded cutting portion 44 of the bolt with the threaded portion of the thread cutting portion 145268.doc 201033484 24. Further, the blind nut 2 of the present invention is about one side tight: and the blind nut 2. The shape of the main body or the shape of the flange portion 27 is irrelevant. The shape of the protrusion can also be, for example, a blind nut 20 of the present invention, and can also be applied to a product such as a tying bolt. Further, by further improving the dog portion of the thread portion 23, it can also be applied as Spacer nut.
【圖式簡單說明】 圖1係顯示本發明之盲螺帽 圖2係顯示本發明之盲螺帽 圖3係顯示先前之盲螺帽之 圖4係顯示先前之盲螺帽之 【主要元件符號說明】 之緊固前狀態之剖面圖； 之緊固後狀態之剖面圖； 緊固刖狀態之剖面圖；及 緊固後狀態之剖面圖。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a blind nut of the present invention. FIG. 2 is a view showing a blind nut of the present invention. FIG. 3 is a view showing a front blind nut. FIG. 4 is a view showing a main component symbol of a prior blind nut. Description] A cross-sectional view of the state before fastening; a sectional view of the state after fastening; a sectional view of the state of the fastening state; and a sectional view of the state after fastening.
10 被安裝構件 11 安裝·? L 20 盲螺帽 23 螺紋部 24 螺紋切削部分 25 管狀部 26 開口 27 突緣部 28 中空部分 29 螺紋孔 145268.doc 201033484 30 縫隙 33 外壁 35 内壁 36 彎曲部分 40 螺栓 44 螺紋切削部分 50 盲螺帽 145268.doc -10-10 Mounted member 11 Mounting • L 20 Blind nut 23 Threaded part 24 Threaded cutting part 25 Tubular part 26 Opening 27 Flange part 28 Hollow part 29 Threaded hole 145268.doc 201033484 30 Slit 33 Outer wall 35 Inner wall 36 Bending part 40 Bolt 44 thread cutting part 50 blind nut 145268.doc -10-