JPH0639132Y2 - Auxiliary sleeve for anchor bolt - Google Patents
Auxiliary sleeve for anchor boltInfo
- Publication number
- JPH0639132Y2 JPH0639132Y2 JP1986193846U JP19384686U JPH0639132Y2 JP H0639132 Y2 JPH0639132 Y2 JP H0639132Y2 JP 1986193846 U JP1986193846 U JP 1986193846U JP 19384686 U JP19384686 U JP 19384686U JP H0639132 Y2 JPH0639132 Y2 JP H0639132Y2
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- bolt
- anchor bolt
- end portion
- auxiliary
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/065—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting the screw, nail or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 この考案はボルト本体とスリーブとを組合せてなるアン
カーボルトに補助的に用いるアンカーボルト用の補助ス
リーブに関する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an auxiliary sleeve for an anchor bolt, which is used as an auxiliary to an anchor bolt formed by combining a bolt body and a sleeve.
（従来の技術） 孔奥部にアンダーカットと称される拡径孔部を削成した
孔（以下、拡径孔部付き孔という）に植設されるアンカ
ーボルトとして、ボルト本体とスリーブとを組合せたア
ンカーボルトが提案されている。(Prior art) An anchor bolt to be planted in a hole (hereinafter referred to as a hole with a diameter-expanding hole) formed by expanding a diameter-expanding hole called an undercut in the inner part of the hole A combined anchor bolt has been proposed.
第５図はこの考案が使用される汎用のアンカーボルトの
使用態様を示す断面図である。FIG. 5 is a sectional view showing a usage state of a general-purpose anchor bolt in which the present invention is used.
第５図はこの考案が使用される汎用のアンカーボルトの
使用態様を示す断面図である。FIG. 5 is a sectional view showing a usage state of a general-purpose anchor bolt in which the present invention is used.
このアンカーボルトは、ボルト本体１と、ボルト本体１
に嵌装される円筒状のスリーブ４からなる。This anchor bolt includes a bolt body 1 and a bolt body 1
It is composed of a cylindrical sleeve 4 which is fitted in.
ボルト本体１は、上端部に雄ねじ２を設け、下端部に下
方に向け漸次外径を拡径したテーパー状の張出顎３を備
え、スリーブ４は、その下端周縁適所から軸方向に所定
の深さに切り込んで設けた切欠き溝５を有する。The bolt main body 1 is provided with a male screw 2 at an upper end portion, and is provided at a lower end portion with a taper-shaped protruding jaw 3 whose outer diameter is gradually expanded downward. It has a notch groove 5 formed by cutting to a depth.
然して、コンクリート等に穿設した拡径孔部付き孔にア
ンカーボルトを植設するには、ボルト本体１にスリーブ
４を嵌装して拡径孔部付き孔に挿入し、雄ねじ２にナッ
ト８を螺合して締付け、スリーブ４を相対的にボルト本
体１の張出顎３側へ押し進めると、スリーブ４下端部が
切欠き溝５を押し広げて張出顎３に沿って拡径（展開）
されて拡径孔部に係止させるものである。However, in order to plant the anchor bolt in the hole with the expanded diameter hole formed in concrete or the like, the sleeve 4 is fitted to the bolt body 1 and inserted into the hole with the expanded diameter hole portion, and the male screw 2 is fitted with the nut 8 When the sleeve 4 is screwed and tightened and the sleeve 4 is relatively pushed toward the overhanging jaw 3 side of the bolt body 1, the lower end of the sleeve 4 spreads out the notch groove 5 and expands the diameter along the overhanging jaw 3. )
Then, it is locked in the enlarged diameter hole.
ところが、上記したボルト本体１とスリーブ４とを組合
せた汎用のアンカーボルトでは、ナット８を締付けてス
リーブ４下端部を張出顎３上に最大限に拡径（展開）さ
せたとしても、スリーブ４下端部の最大拡径寸法は、ス
リーブ４下端部が対応する張出顎３の外径寸法にスリー
ブ３厚を加えた寸法にしかならない。However, in the general-purpose anchor bolt in which the bolt body 1 and the sleeve 4 are combined, even if the lower end of the sleeve 4 is maximally expanded (developed) on the overhanging jaw 3 by tightening the nut 8. The maximum expanded diameter of the lower end of the sleeve 4 is only the outer diameter of the overhanging jaw 3 to which the lower end of the sleeve 4 corresponds, plus the thickness of the sleeve 3.
この考案は上記する汎用のアンカーボルトの補助的に使
用してスリーブ下端部の拡径寸法を拡大し、植設後の引
き抜き強度を一層向上できるアンカーボルト用の補助ス
リーブを提供することを目的とする。An object of the present invention is to provide an auxiliary sleeve for an anchor bolt, which can be used as an auxiliary to the above-mentioned general-purpose anchor bolt to expand the diameter expansion dimension of the lower end of the sleeve and further improve the pull-out strength after implantation. To do.
上記目的を達成するためのこの考案の要旨とするところ
は、上端部に雄ねじを設け、下端部に下方に向け漸次拡
径したテーパー状の張出顎を備えたボルト本体に、下端
周縁適所から軸方向に切欠き溝を設けた円筒状のスリー
ブを嵌装し、前記雄ねじにナットを螺合してその締付け
によりスリーブ下端部を張出顎上に沿って拡径させるア
ンカーボルトにおいて、ボルト本体の張出顎とスリーブ
下端部との間に嵌装されるものであって、ボルト本体が
挿通される中孔を有し、上端開口縁を尖縁にして外周面
を下方に向け拡径したテーパ面に形成し、下端周縁適所
から軸方向に切欠き溝を上端開口縁近傍まで設けて肉厚
の薄い上端部分を全周的に連続させたことを特徴とする
アンカーボルト用補助スリーブにある。In order to achieve the above object, the gist of the present invention is to provide a bolt main body provided with a male screw at the upper end portion and a taper-shaped protruding jaw whose diameter is gradually increased downward at the lower end portion, from a proper position at the lower end peripheral edge. An anchor bolt in which a cylindrical sleeve provided with a notch groove in the axial direction is fitted, a nut is screwed onto the male screw, and the lower end of the sleeve is expanded along the protruding jaw by tightening the nut It is fitted between the overhanging jaw and the lower end of the sleeve, and has an inner hole through which the bolt body is inserted, and the outer peripheral surface is expanded downward with the upper end opening edge as a sharp edge. An auxiliary sleeve for an anchor bolt, characterized in that it is formed in a tapered surface, and a notched groove is provided in an axial direction from a proper place at the lower end peripheral edge to the vicinity of the opening edge of the upper end, and the thin upper end portion is continuous all around. .
ボルト本体に対し補助スリーブを嵌装してからスリーブ
を嵌装する。拡径孔部付き孔に挿入し、ボルト本体の雄
ねじにナットを螺合してこれを締付けると、張出顎とス
リーブ下端部の間に補助スリーブが挟挿状態となり、張
出顎上で補助スリーブとスリーブ下端部とが重り合って
共に拡径され、補助スリーブの楔作用でスリーブ下端部
の拡径寸法を拡大する。The auxiliary sleeve is fitted to the bolt body, and then the sleeve is fitted. Insert it into the hole with expanded hole, screw the nut onto the male screw of the bolt body and tighten it, and the auxiliary sleeve will be inserted between the overhanging jaw and the lower end of the sleeve. The sleeve and the lower end portion of the sleeve overlap each other and are expanded in diameter, and the wedge action of the auxiliary sleeve expands the expanded diameter dimension of the lower end portion of the sleeve.
以下、この考案の実施例を図面に基づいて説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図はこの考案の一部を欠除した斜視図である。FIG. 1 is a perspective view in which a part of this device is omitted.
図において、６はこの考案に係る補助スリーブで、ボル
ト本体１が挿通される中孔6aを有し、その上端開口縁を
尖縁6bにして外周面を下方に向け拡径したテーパ面6cに
形成し、下端周縁適所から軸方向に切欠き溝７を上端開
口縁近傍まで設けて肉厚の薄い上端部分を全周的に連続
させてなり、縦断面形が三角形状を呈する短寸なもので
ある。In the figure, 6 is an auxiliary sleeve according to the present invention, which has an inner hole 6a through which the bolt body 1 is inserted, and an upper end opening edge thereof is made into a sharp edge 6b to form a tapered surface 6c whose outer peripheral surface is expanded downward. A short-sized one formed by forming a notch groove 7 in the axial direction from the proper position at the lower end peripheral edge to the vicinity of the upper end opening edge and continuously connecting the thin upper end portion around the entire circumference, and having a triangular vertical cross section. Is.
この補助スリーブ６は、第２図に示すように、ボルト本
体１に対してスリーブ４より前に嵌装し、常態でスリー
ブ４下端部が補助スリーブ６の尖縁6a上に僅かに被さる
ようにしている。As shown in FIG. 2, the auxiliary sleeve 6 is fitted to the bolt body 1 before the sleeve 4 so that the lower end of the sleeve 4 slightly covers the sharp edge 6a of the auxiliary sleeve 6 in a normal state. ing.
次に、上記実施例の使用態様を説明する。Next, a usage mode of the above-mentioned embodiment will be described.
第３図に示すように、コンクリートに穿設した拡径孔部
付き孔Ａに挿入し、孔より突出するボルト本体１上端の
雄ねじ２部をコンクリート取付部材Ｂの取付孔B1に挿入
した後、雄ねじ２にナット８を螺合する。As shown in FIG. 3, after inserting into the hole A with the enlarged diameter hole formed in the concrete and inserting the male screw 2 part of the upper end of the bolt body 1 protruding from the hole into the mounting hole B1 of the concrete mounting member B, The nut 8 is screwed onto the male screw 2.
ボルト本体１の回転を阻止した状態でナット８を締付け
ていくと、第４図に示すように、スリーブ４に対してボ
ルト本体１が孔Ａから外向きに引き出される動きで、張
出顎３が補助スリーブ６内に嵌入すると共に、補助スリ
ーブ６はスリーブ４下端部に嵌入してきて補助スリーブ
６とスリーブ４下端部がそれぞれの切欠き溝5,7を押し
拡げて拡径する。When the nut 8 is tightened while the rotation of the bolt body 1 is blocked, as shown in FIG. 4, the bolt body 1 is pulled outward from the hole A with respect to the sleeve 4, and the protruding jaw 3 Is fitted in the auxiliary sleeve 6, and the auxiliary sleeve 6 is fitted in the lower end portion of the sleeve 4, and the auxiliary sleeve 6 and the lower end portion of the sleeve 4 expand the respective notched grooves 5 and 7 to expand the diameter.
ここで、補助スリーブ６内に張出顎３が嵌入されて補助
スリーブ６は、その肉厚を薄して全周的に連続した上端
部分が捩じれたり、伸展したりしながら力を分散させ、
肉厚の厚い基端部を張出顎３上で拡径させるもので、こ
の上にスリーブ４の下端部が乗り上げるようにして拡径
させる。Here, the overhanging jaw 3 is fitted into the auxiliary sleeve 6, and the auxiliary sleeve 6 is thinned to disperse the force while twisting or extending the upper end portion which is continuous all around,
The thicker base end portion is expanded on the overhanging jaw 3, and the lower end portion of the sleeve 4 rides on this to expand the diameter.
また、補助スリーブ６は、肉厚の薄い上端部分が全周的
に連続しているので、切り欠き溝７を挟んでその両側に
軸方向に掛かる力に差があっても、補助スリーブ６は軸
方向に大きく捩じれたり曲がるようなことはなく、スリ
ーブ４の下端部を一様に展開させる。Also, since the thin upper end portion of the auxiliary sleeve 6 is continuous over the entire circumference, even if there is a difference in the axial force on both sides of the notch groove 7, the auxiliary sleeve 6 is The lower end of the sleeve 4 is uniformly developed without being greatly twisted or bent in the axial direction.
こうして、スリーブ４下端部は、張出顎３上に拡径され
た補助スリーブ６の上に拡径されることにより、張出顎
３上に直接的に拡径するのに比べてスリーブ４下端部の
拡径寸法を拡大する。In this way, the lower end of the sleeve 4 is expanded on the auxiliary sleeve 6 expanded on the overhanging jaw 3, so that the lower end of the sleeve 4 is lower than that on the overhanging jaw 3 directly. Expand the diameter expansion part.
なお、上記実施例の使用態様では、スリーブ４及び補助
スリーブ６に対してボルト本体１を引き上げるように移
動させて補助スリーブ６およびスリーブ４下端部を拡径
させるようにしたが、逆に、ボルト本体１に対してスリ
ーブ４及び補助スリーブ６を押し下げるように移動させ
て補助スリーブ６およびスリーブ４下端部を拡径させる
こともできる。In addition, in the use mode of the above-described embodiment, the bolt body 1 is moved so as to be pulled up with respect to the sleeve 4 and the auxiliary sleeve 6 so that the diameters of the auxiliary sleeve 6 and the lower end portion of the sleeve 4 are expanded. The sleeve 4 and the auxiliary sleeve 6 can be moved so as to be pushed down with respect to the main body 1 to expand the diameters of the auxiliary sleeve 6 and the lower end portion of the sleeve 4.
また、アンカーボルトに対する補助スリーブ６の使用
は、１個だけに限らず、複数個を用いることも可能で、
補助スリーブ６の個数が増えればスリーブ４下端部の拡
径寸法は一層拡大される。Further, the number of the auxiliary sleeves 6 used for the anchor bolts is not limited to one, and it is possible to use a plurality of them.
If the number of auxiliary sleeves 6 increases, the diameter expansion dimension of the lower end portion of the sleeve 4 is further increased.
以上説明したように、この考案によれば、次のような効
果を奏する。As described above, the present invention has the following effects.
（１）ボルト本体とスリーブとを組合てなる汎用のアン
カーボルトに使用して、補助スリーブの楔作用によりス
リーブ下端部の拡径寸法を拡大するので、コンクリート
等に植設されるアンカーボルトの引き抜き強度を大きく
てアンカーボルトの固定が一層確実になる。(1) It is used for a general-purpose anchor bolt that combines a bolt body and a sleeve, and the diameter expansion dimension of the lower end of the sleeve is enlarged by the wedge action of the auxiliary sleeve, so that the anchor bolt that is planted in concrete or the like can be pulled out. Greater strength makes anchor bolts more secure.
（２）使用する補助スリーブの個数を変えてスリーブ下
端部の拡径率を調整できるので、アンカーボルトの汎用
性を高めてその使用を便利にする。(2) Since the expansion ratio of the lower end of the sleeve can be adjusted by changing the number of auxiliary sleeves used, the versatility of the anchor bolt is enhanced and its use becomes convenient.
（３）使用に際してアンカーボルトには何等の加工等を
必要とせず、また、補助スリーブ自体の構造も簡素であ
るので植設コスト面からも安価になる。(3) The anchor bolt does not require any processing or the like when used, and the auxiliary sleeve itself has a simple structure, so that it is inexpensive in terms of planting cost.
第１図はこの考案の補助スリーブの一部を欠除した斜視
図、第２図はアンカーボルトに嵌装した状態の斜視図、
第３図および第４図はアンカーボルトの植設態様を示す
縦断面図、第５図はこの考案が適用される汎用のアンカ
ーボルトの縦断面図である。 １…ボルト本体、２…雄ねじ、３…張出顎、４…スリー
ブ、5,7…切欠き溝、６…補助スリーブ。FIG. 1 is a perspective view in which a part of the auxiliary sleeve of the present invention is cut away, and FIG. 2 is a perspective view showing a state in which it is fitted to an anchor bolt,
FIGS. 3 and 4 are vertical cross-sectional views showing an anchoring aspect of the anchor bolt, and FIG. 5 is a vertical cross-sectional view of a general-purpose anchor bolt to which the present invention is applied. 1 ... Bolt body, 2 ... Male screw, 3 ... Overhang jaw, 4 ... Sleeve, 5,7 ... Notch groove, 6 ... Auxiliary sleeve.
Claims (1)
け漸次拡径したテーパー状の張出顎を備えたボルト本体
に、下端周縁適所から軸方向に切欠き溝を設けた円筒状
のスリーブを嵌装し、前記雄ねじにナットを螺合してそ
の締付けによりスリーブ下端部を張出顎上に沿って拡径
させるアンカーボルトにおいて、ボルト本体の張出顎と
スリーブ下端部との間に嵌装されるものであって、ボル
ト本体が挿通される中孔を有し、上端開口縁を尖縁にし
て外周面を下方に向け拡径したテーパ面に形成し、下端
周縁適所から軸方向に切欠き溝を上端開口縁近傍まで設
けて肉厚の薄い上端部分を全周的に連続させたことを特
徴とするアンカーボルト用補助スリーブ。1. A cylindrical body in which a male thread is provided at an upper end portion, and a bolt main body having a taper-shaped protruding jaw whose diameter is gradually expanded downward at a lower end portion is provided with a notch groove in an axial direction from a proper position at a lower end peripheral edge. In the anchor bolt in which the sleeve is fitted and the nut is screwed to the male screw and the diameter of the lower end of the sleeve is expanded along the overhanging jaw by tightening the nut, between the overhanging jaw of the bolt body and the lower end of the sleeve. It has an inner hole through which the bolt body is inserted, and is formed into a tapered surface with the upper end opening edge being a sharp edge and the outer peripheral surface being expanded downward, and the shaft from the proper position at the lower end edge. An auxiliary sleeve for an anchor bolt, characterized in that a notched groove is provided in the direction up to the vicinity of the opening edge of the upper end, and the thin upper end portion is continuous all around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986193846U JPH0639132Y2 (en) | 1986-12-16 | 1986-12-16 | Auxiliary sleeve for anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986193846U JPH0639132Y2 (en) | 1986-12-16 | 1986-12-16 | Auxiliary sleeve for anchor bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6397710U JPS6397710U (en) | 1988-06-24 |
| JPH0639132Y2 true JPH0639132Y2 (en) | 1994-10-12 |
Family
ID=31150254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986193846U Expired - Lifetime JPH0639132Y2 (en) | 1986-12-16 | 1986-12-16 | Auxiliary sleeve for anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0639132Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3445713A1 (en) * | 1984-12-14 | 1986-06-19 | Hilti Ag, Schaan | SPREADING ANCHOR |
-
1986
- 1986-12-16 JP JP1986193846U patent/JPH0639132Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6397710U (en) | 1988-06-24 |
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