1305248 九、發明說明： 相關申請案 本發明相關於2004年11月5日所提出申請之名稱爲 「可轉動防脫螺帽」之臨時專利申請案序號第60/625,094 號，在此聲明其中之優先權。 【發明所屬之技術領域】 本發明關於一種扣件（fastener) ’其被捕捉在材料板材 ，然而可自由地旋轉，使得其等可接合其他構件。更明確 # 地，關於一種可用工具轉動之防脫扣件，其由金屬板來捕 捉，而此金屬板在鉚接裝附製程期間可被變形。 【先前技術】 在連接緊固工業有需要一種螺帽，其相同於現有鉚接 螺帽（clinch nut)而爲防脫落的，但是仍然可轉動來接合螺 絲（screw)或螺栓（bolt)而提供夾緊壓負載（clamp load)。在 其一個情形中，需要使得防脫（captive)及固定式（stationary) 螺柱（stud)可連同防脫螺帽來使用。這允許兩個配對組件， ® 螺柱及螺帽在一板材內捕捉。防脫組件之優點包括消除金 屬件之鬆弛、降低材料庫存（BOM inventory)，容易製造及 組裝和降低成本。 習知在一板材中藉由在板材相對側上之墊圈（washer) 內將螺帽的柄部形成喇叭形狀來提供可轉動防脫螺帽’如 美國專利第6,866，456號之實例所示。然而’此種架構需要 將被放置在板材之相對側上的專用鐵砧（anvil) ’而且夾緊 負載不能i:接地施加到板材之後側（back side)，因爲有墊 1305248 圈存在之故。而且，習知簡單式支柱螺帽（stake nut)包括一 延伸柄部，靠在板材後側來變形。這也需要第二個安裝組 件’即鐵站，而且沒有提供齊面安裝（flush attachment)。 本發明解決習用技術的這些非斯望特徵所造成問題。 【發明內容】 本裝置是一種不具有反轉矩（anti-torque)特徵之鉚接 螺帽，不同於包括板材夾緊構造來提供堅固之安裝的習用 技術。鉚接螺帽的柄部包括置換物（displacer)及凹部 φ (undercut)，但是不包括諸如壓紋式鋸齒（knurled type ser rat ion)之反轉矩特徵。在這點上，平滑表面之柄部自螺 帽之凸緣延伸。凸緣提供一支承表面，支承表面沒有可能 損害螺帽之轉動或干擾基板表面的突出部及凹凸。螺帽之 頭部可具有任何形狀。因爲設計共通性，推薦六角形爲便 利的螺帽形狀。在凸緣上方的標準六角形狀可使一般的板 手及套筒接合及轉動螺帽，然而，亦可使用其他形狀。例 如，可使用具有二個平坦面的圓形物、蓋帽式螺帽或更特 ® 殊之形狀。頭部之高度必需足夠來提供所期望螺帽強度。 對於設計以正確發揮作用而言，螺帽之材料選擇是重要的 。因爲這部分必需鉚接，這部分之硬度必需足以造成基板 面板降服。這些問題在其他鉚接扣件是司空見慣的’且對 於熟習該項技術者應是顯而易見的。 更明確地，本專利申請人發明了 一種用於可旋轉裝附 至開孔板材的防脫鉚接螺帽’其包含：螺帽本體’具有軸 向螺紋孔；及凸緣，形成螺帽本體之底部（base)°凸緣包括 130524^ 在其底側上的表面，較佳地與凸緣爲單一體，用於提供靠 在板材減小摩擦的支承表面。與螺帽本體爲單一體的置換 物係位在凸緣的正下方，且具有小於凸緣之外徑的外徑。 與螺帽本體爲單一體的管形喇叭狀柄部自置換物同軸地延 伸，且包括緊鄰置換物的頸部，具有外徑小於置換物之外 徑，形成在柄部之外側及置換物之底側間之凹部區域，用 於接受板材金屬之冷流（cold flow)。置換物及柄部之外表 面具有減小的摩擦，用於提供螺帽靠在板材中之開孔內側 # 壁的支承表面。防脫螺帽係與板材一起使用，其中螺帽本 體之置換物及柄部定位在板材內，而且與開孔同軸，使得 板材的一部分位於置換物之底部及柄部之外側表面間的凹 部區域內。在置換物及凸緣之外側表面及板材開孔之內側 壁之間的空間爲使得螺帽可自由地在板材內轉動，同時抵 抗從此處的實質軸向位移而固定。較佳地，置換物之高度 及柄部之長度小於板材之厚度，使得柄部沒有延伸超過板 材後側。螺帽與具有相當延展性板材材料來配合使用，使 ^ 得凸緣依舊是相當不可變形的，而且由具有硬度大致大於 板材硬度之材料來構成。 由下文較佳實施例之附圖及說明，熟習該項技術者將 理解本發明已經達成之目的。雖然本發明參照特定實施例 來說明，下文說明是用於解說本發明，而非解釋成限定本 發明。在不脫離本發明之真實精神及範圍下’熟習該項技 術者可對較佳實施例實施各種對本發明的修飾。在此應留 意的是，爲更佳了解，相同組件在整個隨後附圖之各種圖 -7- 1305248 式將以相同參考號碼來標示。 【實施方式】 較佳實施例之說明 現在，參照第1圖，本發明之扣件是一種螺帽之形式 ，包括頭部1，其包括工具接合平坦面2，用於施加轉動轉 矩到螺帽。對於工具接合表面，以六角形構造爲佳。螺帽 進一步包括凸緣3,其具有平滑底面11，平滑底面11作用 成靠在板材3 (如第3圖所示）的第一支承表面，而螺帽係安 # 裝至此板材中。螺帽係以鉚接製程來安裝，其中下側的柄 部8係設置有置換物5及凹部6。置換物係向內逐漸縮小 。螺帽之柄部安置通過板材之開孔，而當螺帽壓入具有足 夠延展性材料之板材內時，包含底面13的置換物強迫板材 材料之冷流進到凹部6內，如此將螺帽裝附到板材。 如第2圖所示，自該柄部之頸部1 2處開始的凹部6位 置緊接在置換物底面13之下。螺帽7之內螺紋延伸螺帽之 整個長度。管狀柄部8及置換物5之外表面是平滑表面， Φ 及具有減小的摩擦，來提高其等功能作爲除了螺帽凸緣3 之底面11以外的支承表面。 現在，參照第3圖，螺帽安裝在板材9中’板材9具 有開孔，其直徑、厚度大小相關於第1圖及第2圖所示螺 帽之尺寸，使得板材之金屬冷流沒有緊緊地壓抵在置換物 或凸緣之外表面。在板材及螺帽之間的空間1 0能使螺帽在 可在板材9內自由地轉動’同時因爲藉置換物底面13被強 迫進入在喇叭狀柄部8及置換物5間之凹部區域的板材材 1305248 料冷流，提供顯著的拉出阻力（pull-out resistance)。凸緣3 之底面11支撐板材9之頂表面’而且底面11是減小摩擦 之平滑表面，以提商其性能。 應了解的是，由上述說明，對本發明可有其他對於熟 習該項技術者而言是顯而易見的修修飾及變化’然而’本 發明將僅藉下文之申請專利範圍及其法律上的均等物而限 定。 【圖式簡單說明】 # 第1圖是本發明之正視圖示； 第2圖是底部等角圖示；以及 第3圖是斷面局部圖示。 【主要元件符號說明】 1 頭部 2 工具接合平坦面 3 凸緣 5 置換物 6 凹部 7 螺帽 8 柄部 9 支撐板材 10 空間 11 平滑底面 12 頸部 13 底面 • 9 -RELATED APPLICATIONS: The present application is related to Provisional Patent Application Serial No. 60/625,094, entitled priority. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener that is captured on a sheet of material, but is free to rotate such that it can engage other members. More specifically, it relates to an anti-trip fastener that can be rotated by a tool, which is captured by a metal plate which can be deformed during the riveting and attaching process. [Prior Art] There is a need in the joint fastening industry for a nut that is the same as the existing clinch nut to prevent detachment, but still rotatable to engage a screw or bolt to provide a clip. Clamp the load. In one case, it is desirable to have a captive and stationary stud to be used in conjunction with a retaining nut. This allows two mating components, the ® studs and nuts, to be captured in one plate. Advantages of the detachment prevention component include elimination of looseness of metal parts, reduction of BOM inventory, ease of manufacture and assembly, and cost reduction. It is known to provide a rotatable retaining nut in a sheet by arranging the shank of the nut in a washer on the opposite side of the sheet as shown in the example of U.S. Patent No. 6,866,456. However, this architecture requires a dedicated anvil that will be placed on the opposite side of the panel and the clamping load cannot be applied to the back side of the panel because of the presence of the pad 1305248. Moreover, conventional simple stud nuts include an extended shank that is deformed against the back side of the sheet. This also requires a second installation component, the iron station, and does not provide a flush attachment. The present invention addresses the problems caused by these non-preferred features of conventional techniques. SUMMARY OF THE INVENTION The device is a riveted nut that does not have anti-torque features, unlike conventional techniques that include a plate clamping configuration to provide a robust mounting. The shank of the rivet nut includes a displacementr and an undercut, but does not include a counter torque characteristic such as a knurled type ser rat ion. In this regard, the shank of the smooth surface extends from the flange of the nut. The flange provides a support surface which is free from protrusions and irregularities that may damage the rotation of the nut or interfere with the surface of the substrate. The head of the nut can have any shape. Because of the commonality of design, it is recommended that the hexagon be a convenient nut shape. The standard hexagonal shape above the flange allows the common wrench and sleeve to engage and rotate the nut, however other shapes can be used. For example, a circular object with two flat faces, a cap nut or a special shape can be used. The height of the head must be sufficient to provide the desired nut strength. The choice of material for the nut is important for the design to function properly. Since this part must be riveted, the hardness of this part must be sufficient to cause the substrate panel to surrender. These problems are commonplace in other riveting fasteners and should be apparent to those skilled in the art. More specifically, the applicant of the present invention has invented a detach-proof riveting nut for rotatably attaching to an apertured plate, which comprises: a nut body having an axially threaded bore; and a flange forming a nut body The base flange includes a surface on its bottom side, preferably a single body, for providing a bearing surface against friction of the sheet. The displacement body that is a single body with the nut body is located directly below the flange and has an outer diameter that is smaller than the outer diameter of the flange. The tubular horn-like handle having a single body with the nut body extends coaxially from the displacement, and includes a neck portion adjacent to the replacement body, having an outer diameter smaller than the outer diameter of the displacement, formed on the outer side of the handle and the replacement A recessed area between the bottom sides for receiving cold flow of sheet metal. The outer surface of the displacement and the shank has reduced friction for providing a bearing surface against which the nut rests against the inner side of the opening in the sheet. The detachable nut is used together with the plate member, wherein the replacement and the shank of the nut body are positioned in the plate and coaxial with the opening such that a portion of the plate is located at the bottom of the displacement and the recessed portion between the outer surfaces of the shank Inside. The space between the outer surface of the displacement and the outer surface of the flange and the inner wall of the sheet opening is such that the nut is free to rotate within the sheet while being secured against substantial axial displacement therefrom. Preferably, the height of the displacement and the length of the shank are less than the thickness of the sheet such that the shank does not extend beyond the back side of the sheet. The nut is used in conjunction with a relatively malleable sheet material so that the flange is still relatively non-deformable and consists of a material having a hardness substantially greater than the hardness of the sheet. From the drawings and description of the preferred embodiments below, those skilled in the art will understand that the invention has been achieved. While the invention has been described with reference to the specific embodiments, Various modifications of the invention can be made to the preferred embodiments without departing from the scope of the invention. It is to be noted that, for better understanding, the same components will be denoted by the same reference numerals throughout the various figures of the following figures -7 - 1305248. DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to Figure 1, a fastener of the present invention is in the form of a nut including a head 1 including a tool engaging flat surface 2 for applying a rotational torque to a snail cap. For the tool joint surface, a hexagonal configuration is preferred. The nut further includes a flange 3 having a smooth bottom surface 11 that acts to abut against the first support surface of the sheet 3 (as shown in Figure 3) into which the nut is attached. The nut is mounted by a riveting process in which the lower shank 8 is provided with a replacement 5 and a recess 6. The displacement system tapers inwardly. The handle of the nut is placed through the opening of the sheet, and when the nut is pressed into the sheet having sufficient ductile material, the replacement comprising the bottom surface 13 forces the cold flow of the sheet material into the recess 6, thus the nut Attached to the board. As shown in Fig. 2, the recess 6 from the neck portion 12 of the shank is immediately below the bottom surface 13 of the displacement. The internal thread of the nut 7 extends the entire length of the nut. The outer surfaces of the tubular shank 8 and the replacement 5 are smooth surfaces, Φ and have reduced friction to enhance their function as a bearing surface other than the bottom surface 11 of the nut flange 3. Now, referring to Fig. 3, the nut is mounted on the plate 9 'the plate 9 has an opening, the diameter and the thickness of which are related to the size of the nut shown in Fig. 1 and Fig. 2, so that the metal cold flow of the plate is not tight. Press firmly against the outer surface of the displacement or flange. The space 10 between the plate and the nut enables the nut to be freely rotatable within the plate 9 while also being forced into the recessed region between the flared shank 8 and the displacement 5 by the displacement bottom surface 13 The sheet material 1305248 is cold flowing and provides significant pull-out resistance. The bottom surface 11 of the flange 3 supports the top surface ' of the sheet material 9' and the bottom surface 11 is a smooth surface that reduces friction to provide performance. It will be appreciated that from the foregoing description, other modifications and variations will be apparent to those skilled in the art <RTIgt; limited. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of the present invention; FIG. 2 is a bottom isometric view; and FIG. 3 is a partial cross-sectional view. [Main component symbol description] 1 Head 2 Tool joint flat surface 3 Flange 5 Replacement 6 Concave 7 Nut 8 Handle 9 Support plate 10 Space 11 Smooth bottom surface 12 Neck 13 Bottom surface • 9 -