TWM431237U - Fastening bolt and its expansion parts - Google Patents

Fastening bolt and its expansion parts Download PDF

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Publication number
TWM431237U
TWM431237U TW100221642U TW100221642U TWM431237U TW M431237 U TWM431237 U TW M431237U TW 100221642 U TW100221642 U TW 100221642U TW 100221642 U TW100221642 U TW 100221642U TW M431237 U TWM431237 U TW M431237U
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Taiwan
Prior art keywords
expansion
sheets
fastening bolt
rod
item
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TW100221642U
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Chinese (zh)
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chong-xing Lin
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chong-xing Lin
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Priority to TW100221642U priority Critical patent/TWM431237U/en
Publication of TWM431237U publication Critical patent/TWM431237U/en

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五、新型說明: 【新型所屬之技術領域】 本創作係關於-種緊固螺栓及其膨服元件,尤一 種可以將板狀的構件,固定到一承重結構體。八 【先前技術】 請閱第1圖所示,其係中華民國公開第201128043號 所揭示之一種習知緊固件9,該緊固件9具有-杆段91和 —_元件92 ’該杆段91上設置了用於制膨脹元件92 的擴張體93和膨脹片94 ’該膨脹元件%設計成套筒妒 狀’其特徵在於:娜脹辑92具麵形體,在基體 上於裝入側設置有膨脹片94,以及’該膨脹片94且有— 孔口。該擴張體93設計成錐形部段,其沿裝入方向加寬且 佈置在杆段91的以侧前端上。該膨脹元件%具树形 的擴張體93 ’在裝入側’至少一個膨脹片%被佈置在該 擴,體93上。若緊固件9位於被切底的鑽孔内,藉由膨服 套筒95壓迫膨脹元件92,使擴張體93之膨脹片94形成 把向擴張’從而使該緊固件9可以牢固地固定於板狀構件 的鑽孔壁和/或底切部中。 由於該習知之膨脹元件92,其數膨脹片94相互之間 形成彎拱狀的彎曲部96及嚙合區97設計,因此,要對該 膨脹套筒95施以一較大之力量,才可以使該膨脹片94形 成缸向擴張,如此,也要以較大之旋轉力量才能夠迫使該 膨脹套筒95旋轉。 再者,由於嚙合區97亦形成彎拱狀,如此,該嚙合 區97與板狀構件之鑽孔壁之 造成該喝合區97相|_觀^之摩擦阻力不足,將 小厚度之板狀構件,就合形//疋轉。因此,對於僅有較 施工按裝上也會變得_。士該板狀構件之破壞,且在 曲㈣斷離,因此,_^者’轉脹科92易由該彎 鑽孔壁之目的。件92就無法達到固定在該 【新型内容】 本創作之目的,你括极 該擴張元叙軸献其雜元件, 其膨脹元件易於施工按裝者。擴張’使«固螺栓及 件,兮=之:丨的’係提供—種緊固螺栓及其膨脹元 t 件之膨脹片與鑽孔壁之間係有較大之摩擦阻 件之破壞者。 土之紅轉,以避免對該板狀構 =前述創作目的,本創作之緊固螺栓及其 端設-錐部,該錐部係由』:該桿體之第二 擴大;—膨脹元件,由成直徑 主 孔套置在桿體之桿部,該膨脹元 接—。义面延伸數膨脹>5,該數膨脹片底段形成 :貼^,該數膨脹片之貼接部相鄰間具一間隙;及一套 同u在上述桿體且由一端可以鄰接該膨脹元件。 =創作之緊賴栓及其膨脹元件,還可以另包括一迫 緊71件可以套在上述桿體之桿部,且可以對 献體作相對之軸向移動’以使膨脹元件之數膨脹片作徑 M431237 向擴張。 •本創作之緊固螺栓及其膨脹元件,其中,該迫緊元件 與桿體之桿部係可以以螺紋部相旋合。 本創作之緊固螺栓及其膨脹元件,其中,該桿體之錐 部還可以設有至少一凸出物,該膨脹元件之二相鄰貼接部 之間形成一間隙,該凸出物可以卡在該間隙。 本創作之緊固螺栓及其膨脹元件,其中,該套筒具有 一軸向長度,該套筒之一端可以被固定在膨脹元件。 本創作之緊固螺栓及其膨脹元件,其中,該數膨脹片 與環體之連接部位具有一徑向寬度,該徑向寬度可以小於 該數膨脹片相鄰間之徑向距離。 本創作之緊固螺栓及其膨脹元件,其中,該數膨脹片 之貼接部相鄰間之間隙可以小於凸出物之寬度。 本創作之緊固螺栓及其膨脹元件,其中,該數貼接部 之底部可以形成類似v字形狀。 . 本創作之緊固螺栓及其膨脹元件,其中,該貼接部係 可以設有一材料厚度小於周側之薄壁部。 本創作之緊固螺栓及其膨脹元件,其中,該薄壁部係 可以形成弧凹面。 一種緊固螺栓之膨脹元件,係由一環體向一表面延伸 數膨脹片,該數膨脹片底段形成一貼接部,該數膨脹.片與 環體之連接部位具有一徑向寬度,該徑向寬度小於該數膨 脹片相鄰間之徑向距離,該數膨脹片之貼接部相鄰間具一 間隙。 一 5 — M431237 【實施方式】 為讓本創作之上述及其他目的、特徵及優點能更明顯 易懂,下文特舉本創作之較佳實施例,並配合所附圖式, 作詳細說明如下: 請閱第2圖所示,其係本創作之一較佳實施例’該緊 固螺栓及其膨脹元件係由一桿體1、一膨脹元件2及一套 筒3所構成,該膨脹元件2及套筒3係可以套置在該桿體 1 ’藉由一外力使該套筒3可以迫壓該膨脹元件2,以使該 膨脹元件2可作徑向擴張。 春 邊桿體1係包括有一桿部η及一錐部12,該桿部u 係可以供上述膨脹元件2及套筒3套置,在本實施例當中, 該杯部11係可以形成螺紋,且由該桿體i之第一端向第二 端延伸,該錐部12係位在該桿體1之第二端。該錐部12 係由桿體1之第一端向第二端形成直徑擴大,該錐部12 上還可以設有至少一凸出物13,該凸出物13凸出在該錐 部12之表面。 請閱第2、3圖所示,該膨脹元件2係由一孔20可以 參 套置在桿體1之桿部u,該膨脹元件2係由一環體21向 一表面延伸數膨脹片22,該數膨脹片22底段形成一貼接 部23。該數膨脹片22與環體21之連接部位具有一徑向寬 度wi ’該徑向寬度W1小於該數膨脹片22相鄰間之徑向 距離W2,使該數膨脹片22易由該連接部位成徑向擴張變 形。為使該形成凹弧形狀之貼接部23與桿體丨之錐部12 有較佳之摩擦阻力,該貼接部23係設有一材料厚度小於周 側之薄壁部24,使該貼接部23可以與錐部12之表面有較 一 6 — t接觸面積’該薄壁部24可以在該 面形成1孔,或設-貫穿該貼接部23 =23之任一表 或如圖所*,在該貼接部23面向該孔、面之貫穿孔, 弧凹形狀之薄壁部24。該數貼接部 中心之表面形成 成—間隙G1,該間隙G1較佳小於 ^之間遥可以形 該數貼接部23之底雜佳形成_ 3之寬度㈤, 凸出物13可以玄地卡号為杯_ ^ ’如此’該 4目鄰之貼接部23之門 5亥套罔3係可以套在桿體i,該套 之間。 度’該轴向長度可以依板狀構件之厚度而改變有:::長 之一端亦可以被蚊在膨脹元件2, ^套同3 用,係熟習該項技術領域人士可以理解者。 彳相同作 本創作之緊固螺栓還可以設有—賢_ 元件4係可以套在該桿體!,且對該桿體7作相4對:迫緊 移動,在本實施例當中,該迫緊元件 、輛向 该内螺级部41可以旋合於該桿體丨之桿部u所 =’ 使該内桿部41對桿體1之桿部U作相對之旋轉時^ ’ 緊元件4可崎該桿體丨作相對之軸向軸,以迫遷= 3及迫使膨脹π件2抵接在桿體丨之錐部12,及使該滕同 元件2之數膨脹片22作徑向擴張。 μ 3脹 請閱第4圖所示,其係本創作實施例之組合情步 膨脹元件2及套筒3係被套在該桿體1之桿部u,〜 該桿體1、膨脹it件2及套筒3係可啸容易地套置在二 板狀構件5之鑽孔51。 s 請閱第5圖所不,其係本創作實施例之使用情形,卷 該桿體卜膨脹元件2及套筒3被套置在—板狀構 : M431237 鑽孔51時,係可以利用—外力使該套# 2,使該膨脹元件2之數膨脹片乃 问3頂推膨脹元件 如圖所示’利用迫緊元件4旋合在::成經向擴張。或 藉由該迫緊猶4糊⑷^ = 係可以藉由該套筒3對膨脹元件2^緊兀件4 元件2之數膨脹片22作捏向擴張。當使該膨脹 13時’該數_ 22任二靖_二1二有凸出? 可以卡阻於該凸出物13,如此,來自該迫緊元 力量,將促使該數膨脹片22形成徑向' 2 22可以抵緊於該板_件5之觀5卜㈣数祕片 本創作之緊固螺栓及其膨脹元件,由於該膨服 環體=接部位僅成較小#向寬度,因此,該膨脹片^ 以谷易地舰,職固縣及其_元件 施 效果之功效。 & 本創作之緊©螺栓及其驗元件,自於賴張元件之 賴片與鑽縫之_較大之摩_力,本辦之緊固螺 栓及其膨脹元件可以減少該膨脹孔壁之旋轉,本案 具有可以避免對該板狀構件破壞效果之功效。 雖然本創作已利用上述較佳實施例揭示,然其並非用 以限定本創作,任何熟習此技藝者在不脫離本創作之精神 和範圍之内,相對上述實施例進行各種更動與修改仍屬本 創作所保護之技術範疇,因此本創作之保護範圍當視後附 之申請專利範圍所界定者為準。 —8 — M431237 【圖式簡單說明】 第1圖:中華民國公開第201128043號習知緊固件構造 圖。 第2圖:本創作之較佳實施例分解立體圖。 第3圖:本創作之膨脹元件立體圖。 第4圖:本創作之較佳實施例使用情形圖(一)。 第5圖:本創作之較佳實施例使用情形圖(二)。 【主要元件符號說明】 〔本創作〕 1 桿體 11 桿部 12 錐部 13 凸出物 2 膨脹元件 20 孑L 21 環體 22 膨脹片 23 貼接部 24 薄壁部 3 套筒 4 迫緊元件 41 内桿部 5 板狀構件 51 鑽孔 〔習用〕 9 緊固件 91 杆段 M431237 92 膨脹元件 93 94 膨脹片 95 96 彎曲部 97 擴張體 膨脹套筒 嗜合區 10 —V. New description: [New technical field] This creation is about a kind of fastening bolt and its expansion component, and in particular, it can fix the plate-shaped member to a load-bearing structure. [Prior Art] As shown in Fig. 1, it is a conventional fastener 9 disclosed in the Republic of China Publication No. 201128043, which has a rod segment 91 and a member 92'. An expansion body 93 for the expansion element 92 and an expansion piece 94 are provided thereon. The expansion element % is designed as a sleeve-shaped shape. The feature is that the body is 92-shaped, and the base is provided on the loading side. The inflated sheet 94, and the expanded sheet 94, have an orifice. The expansion body 93 is designed as a tapered section which is widened in the loading direction and arranged on the side front end of the rod section 91. The expansion element % has a tree-shaped expansion body 93' on the loading side at least one of the expansion sheets % is disposed on the expansion body 93. If the fastener 9 is located in the drilled hole, the expansion member 92 is pressed by the expansion sleeve 95, so that the expansion piece 94 of the expansion body 93 forms a downward expansion so that the fastener 9 can be firmly fixed to the plate. In the bore wall and/or undercut of the member. Due to the conventional expansion member 92, the plurality of expansion sheets 94 are formed with a curved portion 96 and an engagement portion 97 therebetween, so that a large force is applied to the expansion sleeve 95. The expansion piece 94 forms a cylinder expansion, and thus the expansion sleeve 95 can be forced to rotate with a large rotational force. Furthermore, since the meshing region 97 is also formed into a curved shape, the meshing region 97 and the bored wall of the plate-like member cause the frictional resistance of the drinking-and-closing region 97 to be insufficient, and the plate has a small thickness. The components are shaped and/or twisted. Therefore, it will become _ for only the installation of the construction. The destruction of the plate-like member is broken in the song (4), and therefore, the _^'s swelled section 92 is easily bent by the wall. Piece 92 can not be fixed in the [new content] The purpose of this creation, you can expand the meta-axis to provide its miscellaneous components, and its expansion components are easy to construct and install. The expansion 'to make the bolts and parts, 兮=: 丨' provides a type of fastening bolt and its expansion element t between the expansion piece and the borehole wall with a large frictional resistance. The red turn of the soil to avoid the plate structure = the above-mentioned creative purpose, the fastening bolt of the present invention and its end-cone portion, the taper portion is: the second enlargement of the rod body; the expansion element, The main hole of the diameter is sleeved on the rod portion of the rod body, and the expansion element is connected. The number of extensions of the prosthetic surface is expanded, and the bottom portion of the plurality of expansion sheets is formed by: a gap between the adjacent portions of the plurality of expansion sheets; and a set of the same portion of the rod body and adjacent to the rod body Expansion element. = Creation depends on the bolt and its expansion element, and may also include a tensioning 71 piece that can be placed over the rod of the rod body, and the relative axial movement of the body can be made to make the expansion element of the expansion element The diameter M431237 is expanding. • The fastening bolt of the present invention and its expansion element, wherein the urging element and the shank of the shaft can be screwed together by a threaded portion. The fastening bolt of the present invention and the expansion member thereof, wherein the tapered portion of the rod body may further be provided with at least one protrusion, and a gap is formed between two adjacent abutting portions of the expansion element, and the protrusion may be Jam in the gap. The present invention relates to a fastening bolt and an expansion member thereof, wherein the sleeve has an axial length, and one end of the sleeve can be fixed to the expansion member. The fastening bolt of the present invention and the expansion member thereof, wherein the joint portion of the plurality of expansion sheets and the ring body has a radial width which may be smaller than a radial distance between adjacent ones of the plurality of expansion sheets. The fastening bolt of the present invention and the expansion member thereof, wherein a gap between adjacent portions of the plurality of expansion sheets may be smaller than a width of the protrusion. The fastening bolt of the present invention and its expansion member, wherein the bottom of the number of attachment portions can be formed in a v-like shape. The fastening bolt of the present invention and the expansion member thereof, wherein the attachment portion may be provided with a thin wall portion having a material thickness smaller than the circumference side. The fastening bolt of the present invention and the expansion member thereof, wherein the thin wall portion can form an arc concave surface. An expansion member for fastening a bolt, wherein a plurality of expansion sheets extend from a ring body to a surface, and the bottom portion of the plurality of expansion sheets forms an attachment portion, and the number expands. The connection portion between the sheet and the ring body has a radial width. The radial width is smaller than the radial distance between adjacent ones of the plurality of expansion sheets, and the attachment portions of the plurality of expansion sheets have a gap between adjacent ones. MODE FOR CARRYING OUT THE INVENTION The above and other objects, features and advantages of the present invention will become more apparent and understood. Please refer to FIG. 2, which is a preferred embodiment of the present invention. The fastening bolt and its expansion element are composed of a rod body 1, an expansion element 2 and a sleeve 3. The expansion element 2 And the sleeve 3 can be sleeved on the rod body 1' by the external force so that the sleeve 3 can press the expansion element 2, so that the expansion element 2 can be radially expanded. The spring side shaft 1 includes a rod portion η and a taper portion 12, and the rod portion u can be sleeved by the expansion member 2 and the sleeve 3. In the embodiment, the cup portion 11 can be threaded. And extending from the first end of the rod body i to the second end, the cone portion 12 is at the second end of the rod body 1. The tapered portion 12 is formed by a diameter expansion of the first end of the rod body 1 toward the second end, and the cone portion 12 is further provided with at least one protrusion 13 protruding from the cone portion 12 surface. As shown in FIGS. 2 and 3, the expansion element 2 is sleeved on the rod portion u of the rod body 1 by a hole 20 extending from the ring body 21 to a surface of the plurality of expansion sheets 22, The bottom portion of the number of expansion sheets 22 forms an attachment portion 23. The connecting portion of the number of the expansion sheets 22 and the ring body 21 has a radial width wi' which is smaller than the radial distance W2 between the adjacent portions of the plurality of expansion sheets 22, so that the number of the expansion sheets 22 is easily separated by the connecting portion Radial expansion deformation. In order to provide a better frictional resistance between the concave portion forming the concave portion and the tapered portion 12 of the shaft, the attachment portion 23 is provided with a thin portion 24 having a material thickness smaller than the circumferential side, so that the attachment is made. The portion 23 may have a 6-t contact area with the surface of the tapered portion 12. The thin portion 24 may form a hole in the surface, or may be disposed through any of the attachment portions 23=23 or as shown in the figure. * The thin portion 24 of the arc-shaped concave shape faces the through hole of the hole and the surface of the attaching portion 23. The surface of the center of the number of the attachment portions is formed as a gap G1, and the gap G1 is preferably smaller than the width of the bottom portion of the number of the attachment portions 23 to form a width (5), and the protrusion 13 can be sinuously The card number is the cup _ ^ 'so' the door of the 4th adjacent attachment part 23 5 sets of the 亥 3 series can be placed between the rod i, the sleeve. The axial length may vary depending on the thickness of the plate member::: One of the lengths may also be used by the mosquito in the expansion element 2, which is familiar to those skilled in the art.彳The same work The fastening bolts of this creation can also be set up - _ _ component 4 can be placed on the rod! And the pair of the rods 7 are in a pair of four phases: a forced movement. In the present embodiment, the pressing member and the vehicle can be screwed to the rod portion of the rod body. When the inner rod portion 41 is rotated relative to the rod portion U of the rod body 1, the tight element 4 can be used as the opposite axial axis to force the displacement 3 and force the expansion π member 2 to abut. The tapered portion 12 of the rod body and the number of the expansion sheets 22 of the same element 2 are radially expanded. 3 3 bulging is shown in Fig. 4, which is a combination of the case expansion element 2 and the sleeve 3 of the present embodiment, which is sleeved on the rod portion u of the rod body 1, ~ the rod body 1, the expansion unit 2 And the sleeve 3 is easily slidably placed in the bore 51 of the two plate-like members 5. s Please refer to Fig. 5, which is the use case of the present embodiment. When the rod body expansion element 2 and the sleeve 3 are wrapped in a plate-like structure: M431237 hole 51, the external force can be utilized. With the sleeve #2, the number of the expansion elements of the expansion element 2 is 3, and the thrust expansion element is screwed in the following direction by the pressing element 4: into a warp direction expansion. Alternatively, the sleeve 3 can be used to expand the expansion member 22 of the expansion member 2 to the expansion member 22 of the member 4 by the sleeve 3 (4). When the expansion is 13, the number _ 22 is two jing _ 2 1 2 convex? It can be blocked by the protrusion 13 so that the force from the pressing element will cause the number of the expansion sheets 22 to form a radial ' 2 22 which can be pressed against the plate 5 (4) number of secret pieces. The fastening bolt and the expansion element of the creation, because the expansion ring body=the joint portion only has a smaller width, the expansion piece has the effect of applying the effect of the grain free ship, the employee and the _ component. . & The tightness of the creation of the bolt and its inspection components, from the Lai sheet of the Lai sheet and the _ larger friction of the drill, the fastening bolts of the company and the expansion elements thereof can reduce the wall of the expansion hole Rotation, this case has the effect of avoiding the damage effect on the plate-shaped member. Although the present invention has been disclosed by the above-described preferred embodiments, it is not intended to limit the present invention, and it is still within the spirit and scope of the present invention to make various changes and modifications to the above embodiments. The technical scope of the protection is created, so the scope of protection of this creation is subject to the definition of the patent application scope attached. —8 — M431237 [Simple description of the diagram] Figure 1: The structure of the fasteners of the Republic of China Public Publication No. 201128043. Fig. 2 is an exploded perspective view of a preferred embodiment of the present invention. Figure 3: A perspective view of the expansion element of the creation. Figure 4: The use case diagram (1) of the preferred embodiment of the present invention. Figure 5: The use case diagram (2) of the preferred embodiment of the present invention. [Description of main component symbols] [This creation] 1 Rod 11 Rod 12 Cone 13 Projection 2 Expansion element 20 孑L 21 Ring body 22 Expansion piece 23 Attachment 24 Thin wall part 3 Sleeve 4 Tightening element 41 Inner rod 5 Plate member 51 Drilling [Utility] 9 Fastener 91 Rod segment M431237 92 Expansion element 93 94 Expansion sheet 95 96 Curved portion 97 Expansion body expansion sleeve Immersion area 10 —

Claims (1)

M431237 101年2月3日修正替換頁 六、申請專利範圍: 1:一種緊固螺栓及其膨脹元件,係包含: 4干體,該桿體具有一桿部,該桿體之第二端設一錐 冑’該錐部係由桿體之第—端向第二端形成直徑擴大; 二膨脹元件,由一孔套置在桿體之桿部,該膨脹元件由 一環體向一表面延伸數膨脹片,該數膨脹片底段形成一 貼接部,該數膨脹片之貼接部相鄰間具一間隙;及 套筒,係套在上述桿體且由一端可以鄰接該膨脹元 2 :申4專利H圍第!項所述之緊固螺栓及其膨脹元 係另包括-迫緊元件,該迫緊元件可以套在上述桿 體之桿部,且可以對該桿體作相對之軸 以 服元件之數膨脹片作徑向擴張。 3 m專利範圍第2項所述之緊固螺栓及其膨脹元 :其中’該追緊轉與桿趙之桿部係、以螺紋部相旋合。 脹元:專:τ圍第卜2或3項所述之緊固螺栓及其膨 貼接部之間形成--該嶋可t 5 專:f圍第卜2或3項所述之緊固螺栓及其膨 ,該套筒具有一軸向長度,該套筒之一端 被固定在膨脹元件。 .碟 21:專::圍第1、2或3項所述之緊固螺栓及其膨 ’數_片與環體乏連接部位具有一徑 Π〜 M431237 1〇1年2月3曰修正替換頁 向寬度,該徑向寬度小於該數膨張片相鄰間之徑向距 離。 7、 依中請專利範圍第4項所述之緊固螺检及其膨騰元 件,其中,該數膨脹片之貼接部相鄰間之間隙小於凸 物之寬度。 、 8、 依申請專利範圍第4項所述之緊固螺栓及其膨騰元 件,其中,該數貼接部之底部形成類似v字形狀。 9、 依申請專利範圍第1、2或3項所述之緊_栓及其膨 脹7C件’其+,該貼接部係設有一材料厚度小於周側之 薄壁部。 10、,中請專利範圍第9項所述之緊固螺栓及其膨騰元 件,其中,該薄壁部係形成弧凹面。 1卜一種緊_栓之膨脹元件,係由—環體向—表面延伸數 膨脹片,該數膨脹片底段形成一貼接部,該數膨脹片與 ,體之連接部位具有-徑向寬度,難向寬度小於該數 膨脹片相鄰間之經向距離,該數膨脹片之貼接部相鄰間 具一間隙。 12、2請專利翻第11項所述之緊_栓之雜元件, 八中’該數貼接部之底部形成類似v字形狀。 2申:專利範圍第11或12項所述之緊固螺栓之膨脹元 都、中tt貼接部係設有一材料厚度小於周側之薄壁 邵。 月專利乾圍第13項所述之緊固螺栓之膨脹元件, /、中’該薄壁部係形成弧凹面。 —12 —M431237 Modified on February 3, 2011 Replacement Page VI. Scope of Application: 1: A fastening bolt and its expansion element, comprising: 4 dry body, the rod body has a rod portion, and the second end of the rod body is provided a taper 胄 'the taper portion is formed by the first end of the rod body to the second end to expand in diameter; the second expansion element is sleeved on the rod portion of the rod body, and the expansion element is extended from a ring body to a surface The expansion piece, the bottom section of the plurality of expansion sheets forms an abutting portion, the attachment portion of the plurality of expansion sheets has a gap between adjacent portions; and the sleeve is sleeved on the rod body and can be adjacent to the expansion element 2 by one end: Shen 4 patent H Wai! The fastening bolt and the expansion element thereof further comprise a pressing element, which can be sleeved on the rod portion of the rod body, and can be used as a relative shaft of the rod body to serve the number of expansion elements of the element. Radial expansion. The fastening bolt and its expansion element according to item 2 of the 3 m patent range: wherein the tracking screw is screwed to the threaded portion of the rod. Expansion element: special: between the fastening bolts described in paragraph 2 or 3 of the τ circumference, and the bulging joints formed by the swells - the shackles can be tightened as described in item 2 or 3 The bolt and its expansion, the sleeve having an axial length, one end of the sleeve being fixed to the expansion element. .Disc 21:Special:: The fastening bolts mentioned in Items 1, 2 or 3 and their expansions have a diameter Π~ M431237 1〇1月23曰Replacement The page width, the radial width being less than the radial distance between adjacent ones of the plurality of expanded sheets. 7. The fastening screw and the swelling element according to item 4 of the patent scope, wherein the gap between the adjacent portions of the plurality of expansion sheets is smaller than the width of the protrusion. 8. The fastening bolt and the slinging element according to item 4 of the patent application scope, wherein the bottom of the number of attachment portions forms a v-like shape. 9. According to the tightening_plug of the first, second or third aspect of the patent application, and the expansion of the 7C piece 'the +, the attachment portion is provided with a thin wall portion having a material thickness smaller than the circumference side. 10. The fastening bolt of claim 9 and the slinging element thereof, wherein the thin wall portion forms an arcuate concave surface. An expansion element of a tight-fitting type is an expansion piece extending from the ring body to the surface, the bottom piece of the plurality of expansion sheets forming an abutting portion, and the connecting portion of the plurality of expansion sheets and the body has a radial width The difficulty width is less than the meridional distance between the adjacent ones of the plurality of expansion sheets, and the attachment portions of the plurality of expansion sheets have a gap between adjacent ones. 12, 2 Please turn the patent to close the _ plug's miscellaneous components as described in Item 11. The bottom of the number of joints forms a v-like shape. 2 Shen: The expansion element of the fastening bolt described in Item 11 or 12 of the patent scope is provided with a thin wall of material having a thickness less than the circumference side. In the expansion element of the fastening bolt described in Item 13 of the Japanese Patent Drying, the thin wall portion forms an arc concave surface. —12 —
TW100221642U 2011-11-16 2011-11-16 Fastening bolt and its expansion parts TWM431237U (en)

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TWM431237U true TWM431237U (en) 2012-06-11

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