JPH02168009A - Expansion anchor driving pin - Google Patents
Expansion anchor driving pinInfo
- Publication number
- JPH02168009A JPH02168009A JP32281988A JP32281988A JPH02168009A JP H02168009 A JPH02168009 A JP H02168009A JP 32281988 A JP32281988 A JP 32281988A JP 32281988 A JP32281988 A JP 32281988A JP H02168009 A JPH02168009 A JP H02168009A
- Authority
- JP
- Japan
- Prior art keywords
- pin
- driving pin
- tip
- expansion anchor
- anchor
- 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.)
- Pending
Links
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、コンクリート壁に各種の器物、器材を取付は
固定するのに用いるピン打込み式拡聞アンカーにあける
打込みピンに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a driving pin for use in a pin-driving type expansion anchor used for attaching and fixing various objects and equipment to concrete walls.
従来の技術
ピン打込み式拡聞アンカーは、例えば第6図に示すよう
に、筒状のアンカー本体1と、該アンカー本体1のピン
穴3に挿入する打込みピン2とから成り、アンカー本体
1は、ピン穴3の内奥先端部分に狭窄部4を有し、かつ
、先端面から軸方向へ延びピン穴3の狭窄部4に達する
複数の割り溝5を設けて拡開可能の開脚部6が形成され
、後端部外周に設けたねじ部7に締付り用ナツト8が螺
着されている。一方、打込みピン2は、先端部分に砲弾
型の尖鋭部9を有し、後端部分に頭部10が設けられて
いる。A conventional pin driving type amplification anchor, as shown in FIG. 6, for example, consists of a cylindrical anchor body 1 and a driving pin 2 inserted into a pin hole 3 of the anchor body 1. , an open leg part that can be expanded by having a narrowed part 4 at the innermost tip part of the pin hole 3 and provided with a plurality of split grooves 5 that extend in the axial direction from the tip surface and reach the narrowed part 4 of the pin hole 3. 6 is formed, and a tightening nut 8 is screwed into a threaded portion 7 provided on the outer periphery of the rear end. On the other hand, the driving pin 2 has a bullet-shaped sharp portion 9 at its tip and a head 10 at its rear end.
発明が解決しようとする課題
この種の拡開アンカーにあっては、アンカー本体1のピ
ン穴3に挿入した打込みピン2に加えられる軸方向の打
撃力によりその先端部9で開脚部6を拡開するが、開脚
部6を拡開する際の打込みピン2の挿入抵抗が非常に大
きくて、開脚部6を十分に拡開させることができず、所
定の引き扱き強度(保持力)得ることが困難であった。Problems to be Solved by the Invention In this type of expansion anchor, the opening leg portion 6 is moved by the tip portion 9 of the driving pin 2 inserted into the pin hole 3 of the anchor body 1 by the impact force in the axial direction. However, the insertion resistance of the driving pin 2 when expanding the leg part 6 is very large, and the leg part 6 cannot be expanded sufficiently, and the required handling strength (holding force) is ) was difficult to obtain.
特に、アンカー本体1が大径の場合に開脚部6の拡開が
不十分であった。Particularly, when the anchor body 1 has a large diameter, the opening of the legs 6 is insufficient.
また、アンカー本体1のピン穴3に挿入して組み付けた
打込みピン2が運搬中などに不測に扱は出して脱落する
のを防ぐため、接着剤で打込みピン2をアンカー本体1
に固定しているが、この接着剤によるピン扱は止め手段
は作業が面倒でかつコスト高につくという問題点があっ
た。In addition, in order to prevent the driving pin 2 inserted into the pin hole 3 of the anchor body 1 and assembled from falling off due to accidental handling during transportation, the driving pin 2 is attached to the anchor body 1 with adhesive.
However, this method of using pins with adhesive has the problem that the fixing means is troublesome and costly.
本発明は、上記の事情に鑑みてなされたもので、前記打
込みピンの尖鋭部の形状を変えることによって、その挿
入抵抗を著しく軽減させ前記アンカー本体の開脚部を容
易かつ確実に拡間させることが可能となり、かつ、ピン
自体が後は止め機能を備えた拡開アンカーにおける打込
みピンを提供することを目的としている。The present invention has been made in view of the above circumstances, and by changing the shape of the sharp portion of the driving pin, the insertion resistance is significantly reduced and the leg portion of the anchor body is easily and reliably expanded. It is an object of the present invention to provide a driving pin for an expansion anchor in which the pin itself has a later locking function.
課題を解決するための手段
上記目的を達成するために、本発明の打込みピンは、そ
の外周に前記尖鋭部から軸方向へ延びる複数の凹溝が設
けられ、該凹溝の間に形成された突条部が前記割り溝に
係合するように構成されていることを特徴とする。Means for Solving the Problems In order to achieve the above object, the driving pin of the present invention is provided with a plurality of grooves extending in the axial direction from the sharp portion on the outer periphery thereof, and a plurality of grooves are formed between the grooves. It is characterized in that the protruding portion is configured to engage with the dividing groove.
前記突条部はピン先端に向かって漸次幅狭に形成するこ
とが効果的でおる。It is effective to form the protruding portion gradually narrower toward the tip of the pin.
また、前記凹溝の開角度を約100度にし、前記突条部
の両側壁面間の厚みが半径方向外方へ向かって漸次薄く
なるように形成することが好ましい。Further, it is preferable that the opening angle of the groove is about 100 degrees, and the thickness between the side wall surfaces of the protrusion gradually becomes thinner toward the outside in the radial direction.
作用
上記構成の打込みピンをアンカー本体のピン穴に挿入し
て打撃力を加えると、アンカー本体の割り溝に係合した
前記突条部が前記割り溝を押し広げるように作用するの
で、該突条部による楔作用と、ピン先端の尖鋭部による
模作用とが相俟つて前記アンカー本体の開脚部を容易か
つ確実に拡開させる。Function When the driving pin having the above structure is inserted into the pin hole of the anchor body and a striking force is applied, the protrusion portion engaged with the split groove of the anchor body acts to spread the split groove, so that the protrusion The wedge action of the striations and the imitation action of the sharp end of the pin combine to easily and reliably expand the leg portion of the anchor body.
また、前記突条部がアンカー本体の前記割り溝に圧入し
た状態で係合するので、前記打込みピンはアンカー本体
に対して強固に保持され、不測に脱落することがない。Moreover, since the protruding portion is press-fitted and engaged with the split groove of the anchor body, the driving pin is firmly held against the anchor body and will not fall off unexpectedly.
実施例 以下、本発明の実施例を図面に基づいて説明する。Example Embodiments of the present invention will be described below based on the drawings.
第1図及び第2図は、本発明に係る打込みピンの要部を
示しており、細長い円柱状のピン本体11の先端部分に
円錐状の尖鋭部12を設け、後端に頭部(図示省略)を
設ける点は従来品と同様であるが、本発明によれば、ピ
ン先端部分がプラスねじのドライバービット状に形成さ
れる。すなわち、ピン本体11の外周に尖鋭部12から
軸方向へ延びる複数の凹溝13(図示の例では4つ)が
設けられ、該凹溝13の間に複数の突条部14(図示の
例では4本)が形成される。各突条部14は、第3図に
示すように、アンカー本体21の先端面から軸方向へ延
び、ピン穴23の狭窄部24に達する4本の割り溝25
に対応するように位相を90度ずつ異にして設けられ、
かつ、その両側壁面15.15がピン先端に向かって収
斂するよう順次幅狭に形成されている。更に、両側壁面
15.15は、第2図に示すように、凹溝13を開角度
αが約100度のV型断面に形成することによって、半
径方向外方へ向かって収斂するように傾斜し、両側壁面
15.15間の厚みが半径方向外方へ向かって漸次薄く
なっている。1 and 2 show the main parts of a driving pin according to the present invention, in which a conical sharp part 12 is provided at the tip of an elongated cylindrical pin body 11, and a head (not shown) is provided at the rear end. However, according to the present invention, the tip end portion of the pin is formed in the shape of a Phillips screwdriver bit. That is, a plurality of concave grooves 13 (four in the illustrated example) are provided on the outer periphery of the pin body 11 extending in the axial direction from the sharp portion 12, and a plurality of protrusions 14 (in the illustrated example) are provided between the concave grooves 13. 4) are formed. As shown in FIG. 3, each protrusion 14 has four split grooves 25 that extend in the axial direction from the distal end surface of the anchor body 21 and reach the narrowed portion 24 of the pin hole 23.
The phase is set to differ by 90 degrees to correspond to the
Further, both side wall surfaces 15.15 are formed to become narrower in width so as to converge toward the tip of the pin. Furthermore, as shown in FIG. 2, the side wall surfaces 15.15 are inclined so as to converge outward in the radial direction by forming the groove 13 into a V-shaped cross section with an opening angle α of about 100 degrees. However, the thickness between the side wall surfaces 15 and 15 gradually becomes thinner toward the radial direction outward.
上記のように構成された打込みピンを第3図のようにア
ンカー本体21のピン穴23に挿入すると、ピン穴23
内奥の狭窄部24において各突条部14が対応する割り
溝25に圧入した状態に係合し、その両側壁面15.1
5が隣り合う開脚部26.26の対向面26a、26a
に押圧接触して係止保持される。この係止保持によって
ピン本体11はアンカー本体21に確実に保持され、不
測の脱落が有効に防止される。すなわち、打込みピン自
体がv;LGプ止め機能を具備しているのである。When the driving pin configured as described above is inserted into the pin hole 23 of the anchor body 21 as shown in FIG.
At the inner narrowed part 24, each protrusion 14 is press-fitted into the corresponding split groove 25 and engaged, and both side wall surfaces 15.1
Opposing surfaces 26a, 26a of the open leg parts 26.26 where 5 is adjacent
It is held in place by pressing into contact with. By this locking and holding, the pin body 11 is reliably held on the anchor body 21, and accidental falling off is effectively prevented. In other words, the driving pin itself has a v;LG locking function.
次に、アンカー本体21をコンクリート壁などに加工し
た下穴(図示せず)に挿入した状態でピン本体]1に軸
方向への打撃力を加えてアンカー本体2]に圧入すると
、第4図に示すように、開脚部26が拡開される。この
とき、アンカー本体21の割り溝25に係合している突
条部14が割り溝25を押し広げるように作用すると共
に、尖鋭部12が狭窄部24を介して開脚部26を押し
広げるように作用し、突条部14の両側壁面15゜15
による楔作用と、尖鋭部12による楔作用とが相俟って
ピン本体11の挿入抵抗を軽減させ、開脚部26を容易
かつ確実に拡開させる。Next, with the anchor body 21 inserted into a pilot hole (not shown) made in a concrete wall or the like, an impact force is applied to the pin body 1 in the axial direction and the pin body 2 is press-fitted into the anchor body 2, as shown in FIG. As shown in , the spread legs 26 are expanded. At this time, the protruding portion 14 engaged with the split groove 25 of the anchor body 21 acts to spread the split groove 25, and the sharp portion 12 pushes the open leg portion 26 apart via the narrowed portion 24. The both side wall surfaces 15°15 of the protrusion 14
The wedge action by the sharp portion 12 and the wedge action by the sharp portion 12 combine to reduce the insertion resistance of the pin body 11 and allow the leg portion 26 to be easily and reliably expanded.
第5図は、アンカー本体21にめねじ孔22を設けため
ねじアンカーに本発明を適用した例を示している。この
場合、打込みピン11は短く形成してピン孔23内に収
容され、その頂部に打込み工具を係合するための十字溝
16が設けられる構成のみが上記実施例と異なるだけで
、他の構成及び作用効果は先の実施例のものと同じであ
る。FIG. 5 shows an example in which the present invention is applied to a female screw anchor in which a female screw hole 22 is provided in an anchor body 21. In this case, the only difference from the above embodiment is that the driving pin 11 is formed short and accommodated in the pin hole 23, and a cross groove 16 for engaging a driving tool is provided at the top of the driving pin 11. The operation and effect are the same as those of the previous embodiment.
なお、上述したピン本体11及びアンカー本体21は通
常、軟鋼などの金屈材利により製作されるが、断熱性を
要求される場合には、引張り強度の大きいプラスチック
材料、例えばポリアミド系樹脂にガラス繊維を混入した
複合材料などによって製作することも可能である。The pin main body 11 and the anchor main body 21 described above are usually made of a metal material such as mild steel, but if heat insulation is required, they may be made of a plastic material with high tensile strength, such as polyamide resin and glass. It is also possible to manufacture it from a composite material mixed with fibers.
発明の効果
本発明は、上述したように構成されているので、アンカ
ー本体に対する挿入抵抗が著しく軽減され、アンカー本
体の開脚部を容易かつ確実に拡開させることができ、所
定の引仇き強度(保持力)か容易に得られる。Effects of the Invention Since the present invention is configured as described above, the insertion resistance to the anchor body is significantly reduced, the legs of the anchor body can be easily and reliably expanded, and the predetermined length can be expanded. Strength (holding power) can be easily obtained.
また、打込みピン自体がアンカー本体に対する扱は止め
機能を具描しているので、従来のように接着剤による仮
は止め手段は不要となり、それだけ工数が省はコストの
低減が図れる。Furthermore, since the driving pin itself has a locking function for handling the anchor body, there is no need for temporary locking means using adhesive as in the past, and the number of man-hours and costs can be reduced accordingly.
第1図は本発明に係る打込みピンの要部拡大正面図、第
2図は第1図の2−2線に沿う断面図、第3図は同アン
カー本体に組み付けた状態ね示す縦断正面図、第4図は
同使用状態を示す要部の正面図、第5図は別の実施例を
示す一部縦断正面図、第6図は従来の拡開アンカーの一
例を示す一部5縦断正面図である。
11・・・ピン本体 12・・・尖鋭部13・・
・凹溝 14・・・突条部15・・・突条部
14の側壁面
21・・・アンカー本体 23・・・ピン穴24・・
・狭窄部 25・・・割り溝26・・・開脚部
26a・・・開脚部26の対向面
第 4 図Fig. 1 is an enlarged front view of the main parts of the driving pin according to the present invention, Fig. 2 is a sectional view taken along line 2-2 in Fig. 1, and Fig. 3 is a vertical sectional front view showing the state in which it is assembled to the anchor body. , Fig. 4 is a front view of the main part showing the same usage state, Fig. 5 is a partially longitudinal front view showing another embodiment, and Fig. 6 is a partially longitudinal front view showing an example of the conventional expansion anchor. It is a diagram. 11...Pin body 12...Sharp part 13...
・Concave groove 14...Protrusion 15...Side wall surface 21 of protrusion 14...Anchor body 23...Pin hole 24...
・Narrowed part 25...Split groove 26...Open leg part 26a...Opposing surface of the open leg part 26 FIG.
Claims (3)
先端面から軸方向へ延び前記狭窄部に達する複数の割り
溝を設けて複数の開脚部を形成した筒状のアンカー本体
と、該アンカー本体の前記ピン穴に挿入され、先端に尖
鋭部を有する打込みピンとから成る拡開アンカーであつ
て、 前記打込みピンの外周に前記尖鋭部から軸方向へ延びる
複数の凹溝が設けられ、該凹溝の間に形成された突条部
が前記割り溝に係合するように構成されていることを特
徴とする拡開アンカーの打込みピン。(1) In addition to providing a narrowing part at the inner tip of the pin hole,
A cylindrical anchor body having a plurality of split grooves extending in the axial direction from the distal end surface and reaching the narrowed part to form a plurality of open leg parts, and a cylindrical anchor body that is inserted into the pin hole of the anchor body and has a sharp part at the tip. An expansion anchor consisting of a driving pin, wherein a plurality of grooves are provided on the outer periphery of the driving pin extending in the axial direction from the sharp portion, and a protrusion formed between the grooves is connected to the split groove. A driving pin for an expansion anchor, the driving pin being configured to engage with the expansion anchor.
成されていることを特徴とする請求項(1)記載の拡開
アンカーの打込みピン。(2) The driving pin for an expansion anchor according to claim (1), wherein the protrusion portion is formed to become gradually narrower toward the tip of the pin.
突条部の両側壁面間の厚みが半径方向外方へ向かつて漸
次薄くなつていることを特徴とする請求項(1)又は(
2)記載の拡開アンカーの打込みピン。(3) Claim (1) characterized in that the opening angle of the groove is approximately 100 degrees, and the thickness between both side wall surfaces of the protrusion gradually becomes thinner toward the outside in the radial direction. Or (
2) Driving pin for the expansion anchor described.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32281988A JPH02168009A (en) | 1988-12-21 | 1988-12-21 | Expansion anchor driving pin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32281988A JPH02168009A (en) | 1988-12-21 | 1988-12-21 | Expansion anchor driving pin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02168009A true JPH02168009A (en) | 1990-06-28 |
Family
ID=18147970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP32281988A Pending JPH02168009A (en) | 1988-12-21 | 1988-12-21 | Expansion anchor driving pin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02168009A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0540456U (en) * | 1991-11-06 | 1993-06-01 | 株式会社オーテイス | Anchor locking mechanism for gutter mounting bracket |
JP2014514508A (en) * | 2011-03-23 | 2014-06-19 | ヒルティ アクチエンゲゼルシャフト | Anchor bolt and manufacturing method |
-
1988
- 1988-12-21 JP JP32281988A patent/JPH02168009A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0540456U (en) * | 1991-11-06 | 1993-06-01 | 株式会社オーテイス | Anchor locking mechanism for gutter mounting bracket |
JP2014514508A (en) * | 2011-03-23 | 2014-06-19 | ヒルティ アクチエンゲゼルシャフト | Anchor bolt and manufacturing method |
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