JPH1073112A - Three stage cone point bolt for tight frame - Google Patents
Three stage cone point bolt for tight frameInfo
- Publication number
- JPH1073112A JPH1073112A JP8247097A JP24709796A JPH1073112A JP H1073112 A JPH1073112 A JP H1073112A JP 8247097 A JP8247097 A JP 8247097A JP 24709796 A JP24709796 A JP 24709796A JP H1073112 A JPH1073112 A JP H1073112A
- Authority
- JP
- Japan
- Prior art keywords
- sword
- bolt
- diameter
- tight frame
- shape
- 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
Landscapes
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、タイトフレーム用
３段剣先ボルトの分野に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of three-step sword point bolts for tight frames.
【０００２】[0002]
【従来の技術】従来タイトフレームの頂部に直立状に取
着した剣先ボルトとしては、本件出願人の出願に係る実
開平７−２８２１５号公開実用新案公報及び特開平７−
２４８０１４号公開特許公報と、特開平８−１７０４０
７号公開特許公報等がある。2. Description of the Related Art Conventionally, a sword point bolt mounted upright on the top of a tight frame is disclosed in Japanese Utility Model Laid-Open Publication No. 7-28215 and Japanese Utility Model Publication No.
Patent Publication No. 248014 and Japanese Patent Application Laid-Open No. 8-17040
No. 7 published patent publication.
【０００３】前記開示の実開平７−２８２１５号公開実
用新案公報の剣先ボルトの構造のものは、シールナット
をスムーズにチョン掛けすることができるように、ねじ
部の上方に突設する突出部の形状を、下方のねじ部の底
径と同程度をもって形成している。そして、前記突出部
の上方に形成の尖状部の傾斜角度も「９０度」程度をも
って形成されていた。[0003] In the disclosed Japanese Utility Model Application Laid-Open No. 7-28215, the structure of the pointed bolt is disclosed in Japanese Utility Model Publication No. 7-28215, in which a protruding portion projecting above the screw portion is provided so that the seal nut can be smoothly chopped. The shape is formed to be approximately the same as the bottom diameter of the lower screw portion. Further, the angle of inclination of the pointed portion formed above the protruding portion is also formed at about "90 degrees".
【０００４】そのため、タイトフレームの上方に敷設さ
れた折版屋根材に対し、前記尖状部の上方部に穴開け器
具をあてながら前記剣先ボルトを貫通する穴を開けてや
るには、強く穴開け具の頭部をハンマーで叩かないと、
剣先ボルトのねじ部にまで到達する穴を前記折版屋根材
に形成させることができなかった。しかし尖状部が９０
度もの角度のために、前記ハンマーで叩くときにハンマ
ーを握持する右手に大きな負担がかゝると同時に、前記
尖状部が折版屋根材を打抜くときに大きな抵抗力が発生
し、その上高所での作業であることと、何十、何百個所
もの穴開け作業と、シールナットを嵌込み、且前記ナッ
トの螺着作業が要求され、従って熟練者と雖も疲労の度
合が著しく高く、且高所作業のために足元のバランスを
くずし転倒したり、あるいは屋根上から転落する危険の
度合が高かった。そのため作業者の作業能率が低下せざ
るを得なかった。[0004] Therefore, in order to make a hole through the sword-point bolt while applying a drilling tool to the upper part of the pointed part, a hole is required for the folded roof material laid above the tight frame. If you do not hit the head of the opening tool with a hammer,
The hole reaching the thread portion of the sword bolt could not be formed in the folded roof material. But the point is 90
Due to the great angle, a great burden is placed on the right hand holding the hammer when hitting with the hammer, and at the same time, a large resistance occurs when the pointed portion punches out the folded roof material, In addition, it is necessary to work at high altitudes, drill holes in dozens or hundreds of places, insert a seal nut, and screw the nut, so that the degree of fatigue is high even for a skilled worker. And the risk of falling down because of work at height and falling or falling off the roof was high. Therefore, the work efficiency of the worker had to be reduced.
【０００５】さらに従来開示の特開平７−２４８０１４
号公開特許公報の剣先ボルトを構成するねじ部の上方の
突出部の径も、前記ねじ部の底径と同程度にして、極め
て太く形成されており、且剣先部の尖状部の傾斜角度
が、約９０度で形成されている。Further, Japanese Patent Laid-Open No. 7-248014 disclosed in the prior art
The diameter of the projecting portion above the threaded portion constituting the sword tip bolt of Japanese Patent Application Laid-Open Publication No. H11-15083 is also substantially the same as the bottom diameter of the threaded portion, and is formed extremely thick, and the inclination angle of the pointed portion of the sword tip portion Are formed at about 90 degrees.
【０００６】そのためタイトフレーム上に敷設された折
版屋根材に穴を開ける穴開け作業時には、前記と同様
に、尖状部が約９０度という傾斜角度のために、作業者
の右手等に対し大きな抵抗による負担がかゝり、さらに
高所での作業のため、足元のバランスを欠き易く、しか
も足元のふらつきが原因で転落の危険も極めて大きかっ
た。[0006] Therefore, when drilling a hole in a folded roof material laid on a tight frame, as described above, the pointed portion has an inclination angle of about 90 degrees, so that the pointed portion has an inclination angle of about 90 degrees. Due to the heavy resistance, the work was carried out at a higher place, and the feet were likely to be out of balance, and the risk of falling due to the wobble of the feet was extremely high.
【０００７】また従来開示の特開平８−１７０４０７号
公開特許公報のタイトフレーム等用のボルトも、ねじ部
の上方の棒状部に形成されている尖状部の傾斜角度が、
前記棒状部の径がねじ部の底径と同程度と極めて太いが
ために、約９０度を有している。[0007] Further, the bolt for a tight frame or the like disclosed in Japanese Patent Laid-Open Publication No. Hei 8-170407 disclosed in the prior art also has an inclination angle of a pointed portion formed on a rod portion above a screw portion.
Since the diameter of the rod portion is very large, approximately the same as the bottom diameter of the screw portion, it has about 90 degrees.
【０００８】そのためタイトフレーム上に敷設された折
版屋根材に穴を開ける穴開け作業時には、前記と同様
に、尖状部が約９０度という傾斜角度のために、作業者
の右手に対し抵抗による大きな負担がかゝり、さらに高
所での作業のため、足元のバランスを欠き易く、しかも
足元のふらつきが原因で転落の危険も極めて大きかっ
た。[0008] Therefore, when drilling a hole in a folded roof material laid on a tight frame, as described above, since the pointed portion has an inclination angle of about 90 degrees, resistance to the right hand of the worker is required. Because of the heavy burden caused by the work, the work at high altitudes was likely to cause the feet to lose their balance, and the risk of falling due to the wobble of the feet was extremely high.
【０００９】さらに前述した３件の開示公報に掲載され
ている剣先ボルトは、ねじ部より上方の突出部の径が、
ねじ部の底径と稍同程度にして、太く形成されているが
ために、前記剣先ボルトの製造工程は、１工程で形成さ
れるものでなく、第１にねじ部のみの製造工程と、第２
に前記第１のねじ部の製造工程後、別個に別工場に、別
個の設備をもって、突出部と剣先部の尖状部を形成する
製造工程が必要であった。そのため前記剣先ボルトの製
造費が高かった。[0009] Further, in the blade point bolt described in the above three disclosure gazettes, the diameter of the protruding portion above the threaded portion is
Since the bottom diameter of the threaded portion is approximately the same as that of the threaded portion, and is formed thick, the manufacturing process of the pointed bolt is not formed in one process, but firstly, the manufacturing process of only the threaded portion, Second
After the manufacturing process of the first threaded portion, a manufacturing process of forming the protruding portion and the pointed portion of the sword tip separately in a separate factory with separate equipment is required. Therefore, the manufacturing cost of the sword bolt was high.
【００１０】[0010]
【発明が解決しようとする課題】本発明は、タイトフレ
ームの頂部に取着した剣先ボルトが、前記タイトフレー
ムと剣先ボルトの上方に葺上げのために敷設した折版屋
根材に対し、穴開け器具を介して前記剣先ボルトを貫通
する穴開け時において、従来の剣先ボルトよりも、ハン
マーによる小さな叩き力で十分に尖状部の抵抗を少なく
して、最初の小さな穴開けがスムーズにできると共に、
次にハンマーを軽く叩くだけで、剣先部の下方に形成さ
れている剣先部の径より若干太い径の突出部によって穴
が開けられ、さらに下方のねじ部に打抜かれた折版屋根
材が到達してストップするという、いわゆる３段階で前
記剣先ボルトによって折版屋根材が打抜かれるようにし
た。SUMMARY OF THE INVENTION According to the present invention, a sword bolt attached to the top of a tight frame is used to make a hole in a folded roof material laid for roofing above the tight frame and the sword bolt. At the time of drilling the penetrating bolt through the instrument, the resistance of the pointed portion is sufficiently reduced with a small hitting force by a hammer as compared with the conventional bolt, and the initial small drilling can be performed smoothly. ,
Next, just tap the hammer lightly, a hole is drilled by a protrusion with a diameter slightly larger than the diameter of the sword tip formed below the sword tip, and the folded roof material punched into the screw part below reaches The fold roof material was punched out by the sword bolt in so-called three stages of stopping.
【００１１】また本発明は上述のように、第１段階目の
剣先部の尖状部から下方に打抜かれるとき、剣先部の径
が、従来の剣先ボルトを構成する剣先部の径より、約半
分程度の細さにて形成したので、第１段階目での打抜き
時には、従来のハンマーを叩くときの叩き力よりも、小
さい叩き力で、且抵抗力も従来のものに比して極めて小
でも十分打抜きが可能となった。Further, as described above, the present invention, when punched downward from the pointed portion of the sword tip of the first stage, makes the diameter of the sword tip smaller than the diameter of the sword tip constituting the conventional sword tip bolt. Since it is formed with a thickness of about half, the punching force at the first stage is smaller than the conventional tapping force when hitting a hammer, and the resistance is extremely small as compared with the conventional one. But it was possible to punch enough.
【００１２】そして第１段階目の極めて小さな抵抗力で
の打抜き後、剣先部の下方に位置する若干径が大きい突
出部の肩部によって、小さな抵抗力の叩き力で穴をスム
ーズに開けることができる。そしてねじ部の上方部に達
したところで、軽く最後の叩き込みを行うだけで、バラ
ンスのとれた形状の穴が開けられ、折版屋根材をねじ部
にスムーズに落込むようにしたものである。[0012] After the first stage of punching with very small resistance, the shoulder of the slightly larger diameter projection located below the point of the sword can smoothly drill a hole with a small resistance to hitting force. it can. Then, when reaching the upper part of the screw portion, a lightly final tapping is performed to form a well-balanced hole, and the folded roof material is smoothly dropped into the screw portion.
【００１３】以上のように本発明の剣先ボルトは、従来
の剣先ボルトのように、大きな抵抗力を受けずに、打抜
き作業ができ、従って作業者の疲労度を著しく減少せし
めると共に、作業者の足元のふらつきを防止した。[0013] As described above, the pointed bolt of the present invention can perform a punching operation without receiving a large resistance like the conventional pointed bolt, so that the degree of fatigue of the worker can be remarkably reduced and the worker's fatigue can be reduced. Prevented staggering of the feet.
【００１４】さらに本発明の剣先ボルトは、ねじ部の形
成と同時に、突出部と剣先部（尖状部を含めて）をも１
工程で形成できるようにして、従来の剣先ボルトのよう
な２工程を不要にしたので、製作費を著しく節減し提供
できるようにした。Further, the sword bolt according to the present invention has a protrusion and a sword tip (including a pointed portion) simultaneously with the formation of the screw portion.
Since it can be formed in a process, and two processes such as a conventional pointed bolt are not required, the manufacturing cost can be significantly reduced and provided.
【００１５】[0015]
【課題を解決するための手段】本発明は、タイトフレー
ムの頂部に取着する剣先ボルトにおいて、SUMMARY OF THE INVENTION The present invention relates to a sword bolt attached to the top of a tight frame,
【００１６】剣先ボルトを構成するねじ部の上方部に、
ねじ部の外形より若干径が小さい形状の下方突出部を形
成し、且前記下方突出部の上方部に径が先細りする形状
の傾斜部を形成し、前記傾斜部の上方に前記下方突出部
の径より径が著しく小さい形状の上方突出部を突設する
と共に、前記上方突出部の上方部に尖状部を有する剣先
部を突設せしめたタイトフレーム用３段剣先ボルトであ
る。At the upper part of the screw part constituting the sword bolt,
A lower protruding portion having a shape slightly smaller in diameter than the outer shape of the screw portion is formed, and an inclined portion having a tapered shape is formed above the lower protruding portion, and the lower protruding portion is formed above the inclined portion. A three-step sword point bolt for a tight frame in which an upper protrusion having a shape significantly smaller in diameter than the diameter is projected, and a sword tip having a pointed portion is projected above the upper protrusion.
【００１７】さらに本発明は、前記上方突出部が、前記
下方突出部の径の約半分の径をもって形成したタイトフ
レーム用３段剣先ボルトである。Further, the present invention is a three-step sword point bolt for a tight frame, wherein the upper protruding portion has a diameter approximately half the diameter of the lower protruding portion.
【００１８】また本発明は、前記剣先部が、円錐形状に
したタイトフレーム用３段剣先ボルトである。Further, the present invention is a three-stage sword point bolt for a tight frame, wherein the sword point portion has a conical shape.
【００１９】さらに本発明は、前記上方突出部が、円柱
形状にて形成するタイトフレーム用３段剣先ボルトであ
る。Further, the present invention is a three-step sword point bolt for a tight frame, wherein the upper protruding portion is formed in a cylindrical shape.
【００２０】また本発明は、前記上方突出部が、多角柱
形状にて形成し、剣先部が多角錐形状にて形成するタイ
トフレーム用３段剣先ボルトである。Further, the present invention is a three-step sword bolt for a tight frame, wherein the upper protruding portion is formed in a polygonal column shape, and the sword tip portion is formed in a polygonal pyramid shape.
【００２１】[0021]
【作用】本発明の作用を説明すると以下のとおりであ
る。The operation of the present invention will be described below.
【００２２】本発明の剣先ボルトを直立状に立設するタ
イトフレームを梁材に取着した後、葺上げ施工のため折
版屋根材を前記剣先ボルト等に被せてやる。しかる後ハ
ンマーで剣先ボルトの尖状部が当っている上方部の折版
屋根材を軽く叩いてやる。本発明において、上方突出部
の径が、剣先ボルトを構成する下方突出部の径の約半分
程度に形成され極めて細い形状であることと、さらに尖
状部の傾斜角度が従来の剣先ボルトを構成している尖状
部の傾斜角度より、鋭利に形成されているので、前記の
ようにハンマーで軽く叩くだけで、折版屋根材が打ち破
られ、且上方突出部の径の大きさで均一の切れ目が形成
される。そしてハンマーによって叩かれた前記折版屋根
材が、上下突出部と下方突出部との間に形成されている
傾斜部に当る。さらに叩き具の上方部をハンマーで叩く
と、折版屋根材は、上方突出部によって形成された上方
突出部の径と同程度の大きさの切れ目から、傾斜部の下
方に位置する下方突出部によって、下方突出部の径と稍
同程度の大きさの切れ目を形成し、折版屋根材がねじ部
の所定の位置まで降下する。従って本発明は、従来の２
段剣先ボルトと異なり、折版屋根材が上方の剣先部によ
って打ち抜かれ、次に細い形状の上方突出部によって小
さな径の切れ目が形成され、さらに傾斜部によって叩き
力が軽減し、さらに前記上方突出部より太い径の下方突
出部によって切れ目を均一に若干大きく形成するという
３段階の工程によって、折版屋根材が打ち抜かれる。After the tight frame for erection of the sword bolt of the present invention is attached to the beam, the folded roof material is covered with the sword bolt for roofing. After that, lightly tap the folded roof material on the upper part where the point of the sword bolt is in contact with a hammer. In the present invention, the diameter of the upper protruding portion is formed to be about half of the diameter of the lower protruding portion constituting the sword bolt, has an extremely thin shape, and the inclination angle of the pointed portion forms the conventional sword bolt. Since it is formed sharper than the angle of inclination of the pointed portion, the folded roof material is broken by just tapping lightly with a hammer as described above, and the diameter of the upper protrusion is uniform. A cut is formed. Then, the folded roof material hit by the hammer hits an inclined portion formed between the upper and lower projecting portions and the downward projecting portion. Furthermore, when the upper part of the hitting tool is hit with a hammer, the folded roof material is cut from a cut having a size approximately equal to the diameter of the upper protrusion formed by the upper protrusion, and the lower protrusion located below the inclined part. As a result, a cut having a size approximately equal to the diameter of the lower protruding portion is formed, and the folded roof material descends to a predetermined position of the screw portion. Therefore, the present invention relates to the conventional 2
Unlike the stepped bolt, the folded roof material is punched out by the upper sword, and then a small diameter cut is formed by the thin upper protrusion, and the hitting force is reduced by the inclined portion. The folded roof material is punched out by a three-step process in which the notch is uniformly formed slightly larger by the downward projecting part having a diameter larger than the part.
【００２３】以上のように、均一な長さの切れ目が形成
されたことによって、チョン掛けしたシールナットを螺
着しても、座金の外側には、前記の切れ目が出たりしな
い。従って雨漏りのおそれがない。As described above, since the cut having a uniform length is formed, the cut does not appear on the outside of the washer even if the chopped seal nut is screwed. Therefore, there is no possibility of rain leak.
【００２４】さらに本発明は、上方突出部の径が下方突
出部の径の約２分の１程度と極めて細い形状となってい
るので、下方突出部の下方に位置するねじ部の形成と同
じ１工程で形成できるメリットがある。即ち従来の２段
剣先ボルトは、下方突出部と上方突出部との径が、両者
が殆んど差異がない程度に太い径となっている。そのた
めねじ部の形成時に、上下両突出部と尖状部付きの剣先
部とを同時に形成することができなかった。そこで、前
記の上下両突出部を形成するときは、ねじ部を形成後、
取り外して別個の設備を利用し、場合によっては別工場
までわざわざ運搬し、突出部と剣先部を形成しなければ
ならなかった。以上が従来の突出部の形成工程（２工
程）であった。Further, according to the present invention, since the diameter of the upper protruding portion is extremely small, that is, about 1/2 of the diameter of the lower protruding portion, the same as the formation of the screw portion located below the lower protruding portion. There is an advantage that it can be formed in one step. That is, in the conventional two-step sword point bolt, the diameters of the lower protruding portion and the upper protruding portion are so large that there is almost no difference between them. Therefore, when forming the threaded portion, the upper and lower projecting portions and the pointed tip with the pointed portion cannot be formed simultaneously. Therefore, when forming the upper and lower projecting portions, after forming the screw portion,
They had to be removed and used as separate equipment, and in some cases transported to another factory, forming protrusions and sword tips. The above is the conventional projection forming process (two processes).
【００２５】従って、従来の剣先ボルトは、ねじ部の製
造工程と、上下両突出部の製造工程との２つの製造工程
のため、製造費が昂騰し、製造単価も高かった。Therefore, the conventional sword point bolt has two manufacturing processes, a manufacturing process of the screw portion and a manufacturing process of the upper and lower projecting portions, so that the manufacturing cost has increased and the manufacturing unit price has been high.
【００２６】しかるに本発明の剣先ボルトの製造工程
は、上方突出部の径を下方突出部の径の約半分程度とい
う極めて細い形状にしてあるがために、ねじ部の製造工
程と同時に１回の工程で製造できる。従って製造費は従
来の剣先ボルトよりも著しく節減できる。However, in the manufacturing process of the pointed bolt according to the present invention, since the diameter of the upper protruding portion is extremely small, that is, about half of the diameter of the lower protruding portion, one step is performed simultaneously with the manufacturing process of the screw portion. Can be manufactured in process. Therefore, the manufacturing cost can be significantly reduced as compared with the conventional point bolt.
【００２７】また本発明は、上述のように、ハンマーで
軽く叩くだけで、穴が開くので、作業者にとって疲労感
がない。According to the present invention, as described above, the hole is opened only by tapping lightly with a hammer, so that the operator does not feel tired.
【００２８】さらに本発明は、軽く叩くだけで、穴開け
ができるので、作業者がバランスをくずすことがなく、
従って足元がふらつくことがない。Further, according to the present invention, since a hole can be formed only by tapping lightly, the operator does not lose balance.
Therefore, the feet do not fluctuate.
【００２９】[0029]
【発明の実施の形態】本発明の実施の形態を説明すると
以下のとおりである。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
【００３０】ａはタイトフレームｔの頂部１に直立状に
突設した本発明の剣先ボルトであり、以下の構成からな
っている。Reference symbol a denotes a sword bolt of the present invention protruding upright from the top 1 of the tight frame t and has the following structure.
【００３１】本発明の剣先ボルトａにつき説明する。２
は前記ボルトａを構成する頭部、３は前記頭部２の上方
に形成されているシャンク、４は前記シャンク３の上方
に所定の長さをもって突設したねじ部である。The sword bolt a of the present invention will be described. 2
Is a head constituting the bolt a, 3 is a shank formed above the head 2, and 4 is a screw portion projecting above the shank 3 with a predetermined length.
【００３２】５はねじ部４の上方部に、ねじ部４の外径
より若干径が小さい、いわゆるねじ部４の内径と同程度
の径を有する下方突出部である。この形状は円形状また
は４角、５角、６角、８角等の角柱形状をもって形成し
てもよい。Reference numeral 5 denotes a lower protruding portion which has a diameter slightly smaller than the outer diameter of the screw portion 4 and has a diameter substantially equal to the inner diameter of the screw portion 4. This shape may be formed in a circular shape or a prism shape such as a square, a square, a square, an octagon, or the like.
【００３３】６は前記下方突出部５の上方部に形成した
長さが短い傾斜部である。Reference numeral 6 denotes an inclined portion having a short length formed above the lower protruding portion 5.
【００３４】７は前記傾斜部６の上方部に前記下方突出
部５の径より若干径が約２分の１程度にして、且長さが
前記下方突出部５よりも短い形状の上方突出部である。
この形状は前記の下方突出部５と同じく、円形状または
４角、５角、６角、８角等の角柱形状をもって形成して
もよい。An upper protruding portion 7 is formed above the inclined portion 6 and has a diameter slightly smaller than the diameter of the lower protruding portion 5 and about half the length of the lower protruding portion 5. It is.
This shape may be formed in a circular shape or a prism shape such as a square, a square, a square, a square, an octagon, etc., similarly to the above-mentioned downward projecting part 5.
【００３５】８は前記上方突出部７の上方部に形成した
尖状部９を有する円錐形状の剣先部である。また前記剣
先部８は、４角、５角、６角、８角等の角錐形状をもっ
て形成してもよい。１０は廻り止め部である。Reference numeral 8 denotes a conical sword having a pointed portion 9 formed above the upper protruding portion 7. In addition, the sword tip 8 may be formed in a pyramid shape such as a quadrangular, pentagonal, hexagonal or octagonal shape. Reference numeral 10 denotes a rotation stopper.
【００３６】１１はタイトフレームｔを構成する傾斜状
部である。Reference numeral 11 denotes an inclined portion constituting the tight frame t.
【００３７】ｂは従来の剣先ボルトである。１２は従来
の剣先ボルトｂを構成するねじ部、１３は下方突出部、
１４は上方突出部、１５は剣先部、１６は尖状部であ
る。B is a conventional pointed bolt. Reference numeral 12 denotes a screw portion that constitutes the conventional pointed bolt b, 13 denotes a downward projecting portion,
Reference numeral 14 denotes an upwardly projecting portion, 15 denotes a sword tip portion, and 16 denotes a pointed portion.
【００３８】[0038]
【発明の効果】本発明は以下に示す効果を奏する。The present invention has the following effects.
【００３９】本発明は、従来の剣先ボルトと異なり、剣
先ボルトの構造において、下方突出部の径を太く、上方
突出部の径を前記下方突出部の径の約２分の１程度と細
く形成し、且上方突出部の上方に剣先部と尖状部とを形
成した構造となしたので、叩き具を前記剣先ボルトの上
方に当てて、軽くハンマーで叩くだけで、上方突出部の
径と同程度の穴を開けることができ、さらに叩き具の頭
部をハンマーで軽く叩くだけで下方突出部の径と同程度
の穴を開けることができる。そのため従来の剣先ボルト
のように径の大きい突出部の径と同程度の穴を開ける場
合よりも、小さな叩き力で十分可能である。従って作業
者の作業時に生ずる疲労感を従来のものに比し著しく減
少せしめ、さらに上述のように小さな叩き力で所望する
形状の穴開けができるので、作業者の足元がふらつくよ
うなことがないと共に、足元のふらつきがないので、作
業中の転落を未然に防止せしめた。According to the present invention, unlike the conventional pointed bolt, in the structure of the pointed bolt, the diameter of the lower protruding part is made large, and the diameter of the upper protruding part is made as thin as about half the diameter of the lower protruding part. And, since it has a structure in which a sword tip and a pointed portion are formed above the upper protruding portion, a hitting tool is applied to the upper side of the sword tip bolt and the ball is hit lightly with a hammer to reduce the diameter of the upper protruding portion. A hole of the same size can be made, and a hole of the same size as the diameter of the downward projecting portion can be made by simply tapping the head of the hitting tool lightly with a hammer. For this reason, a smaller hitting force can be sufficiently used than when a hole having a diameter approximately equal to the diameter of the protruding portion having a large diameter is formed like a conventional sword bolt. Therefore, the feeling of fatigue caused by the worker's work is significantly reduced as compared with the conventional one, and a hole having a desired shape can be formed with a small hitting force as described above, so that the worker's feet do not fluctuate. At the same time, since there was no wobble at the feet, falling during work was prevented beforehand.
【００４０】さらに本発明は、前述のように上方突出部
の径を下方突出部の径よりも約２分の１程度と著しく細
くし、しかも剣先部の尖状部を鋭利に尖状に形成してい
るので、作業者が軽く叩くだけで前記屋根材に対し、第
１段階で均一の長さの切れ目が複数形成され、さらに第
２段階で、若干径の大きい下方突出部によって、前記の
切れ目より長さが若干長く、且均一した切れ目を順次形
成できるようにしたので、従って雨漏りの原因となる突
出した長い切れ目の形成を未然に防止した利点を有して
いる。Further, according to the present invention, as described above, the diameter of the upper protruding portion is remarkably smaller than the diameter of the lower protruding portion by about one-half, and the pointed portion of the sword tip is formed sharply pointed. In the first step, a plurality of cuts having a uniform length are formed in the roofing material only by tapping lightly on the roofing material. Since the length of the cut is slightly longer than that of the cut and uniform cuts can be sequentially formed, there is an advantage that the formation of a protruding long cut which causes rain leakage is prevented.
【００４１】また本発明の剣先ボルトは、上方突出部の
径が下方突出部の径の約２分の１程度にて形成し、しか
も尖状部の傾斜角度も鋭利になって剣先部を構成したの
で、従来の剣先ボルトの製造が２工程を必要としていた
のに対し、１回の工程で足りる。従って剣先ボルトの製
造費を２分の１に節減でき、安価に提供できる利点があ
る。Further, in the blade tip bolt according to the present invention, the diameter of the upper projection is formed to be about one half of the diameter of the lower projection, and the angle of inclination of the pointed portion is sharpened to form the blade tip. As a result, a single process is sufficient as compared with the conventional process of manufacturing a pointed bolt which requires two processes. Therefore, there is an advantage that the manufacturing cost of the sword bolt can be reduced to one half and can be provided at a low cost.
【図１】本発明タイトフレーム用３段剣先ボルトの第１
実施例を示す正面図である。FIG. 1 is a first view of a three-step sword point bolt for a tight frame according to the present invention.
It is a front view showing an example.
【図２】同ボルトの平面図である。FIG. 2 is a plan view of the bolt.
【図３】図１のボルトの斜視図である。FIG. 3 is a perspective view of the bolt of FIG. 1;
【図４】同剣先ボルトの第２実施例を示す斜視図であ
る。FIG. 4 is a perspective view showing a second embodiment of the sword point bolt.
【図５】同剣先ボルトを取着したタイトフレームの斜視
図である。FIG. 5 is a perspective view of a tight frame to which the sword point bolt is attached.
【図６】従来の剣先ボルトの使用状態を示す一部切欠拡
大側面図である。FIG. 6 is a partially cut-away enlarged side view showing a used state of a conventional pointed bolt.
ａ、ｂ・・・剣先ボルト ｔ・・・タイトフレーム
１・・・頂部 ２・・・頭部 ３・・・シャンク
４、１２・・・ねじ部 ５、１３・・・下方突出
部 ６・・・傾斜部 ７、１４・・・上方突出部
８、１５・・・剣先部 ９、１６・・・尖状部
１０・・・廻り止め部 １１・・・傾斜状部a, b: Sword bolt t: Tight frame
DESCRIPTION OF SYMBOLS 1 ... Top part 2 ... Head part 3 ... Shank 4, 12 ... Screw part 5, 13 ... Lower protruding part 6 ... Inclined part 7, 14 ... Upper protruding part
8, 15 ... sword tip 9, 16 ... pointed part
10 ... detent part 11 ... inclined part
Claims (5)
トにおいて、 剣先ボルトを構成するねじ部の上方部に、ねじ部の外形
より若干径が小さい形状の下方突出部を形成し、且前記
下方突出部の上方部に径が先細りする形状の傾斜部を形
成し、前記傾斜部の上方に前記下方突出部の径より径が
著しく小さい形状の上方突出部を突設すると共に、前記
上方突出部の上方部に尖状部を有する剣先部を突設せし
めたことを特徴とするタイトフレーム用３段剣先ボル
ト。1. A sword-point bolt attached to the top of a tight frame, wherein a lower protruding portion having a shape slightly smaller in diameter than the outer shape of the screw portion is formed above a screw portion constituting the sword-point bolt, and An inclined portion having a tapered shape is formed on an upper portion of the projecting portion, and an upper projecting portion having a shape whose diameter is significantly smaller than the diameter of the lower projecting portion is provided above the inclined portion, and the upper projecting portion is formed. A three-step sword-point bolt for a tight frame, characterized in that a sword-point part having a pointed portion is projected from an upper part of the bolt.
約半分の径をもって形成したことを特徴とする請求項１
記載のタイトフレーム用３段剣先ボルト。2. An apparatus according to claim 1, wherein said upper protruding portion has a diameter which is approximately half the diameter of said lower protruding portion.
The three-step sword point bolt for the tight frame described.
とする請求項１記載のタイトフレーム用３段剣先ボル
ト。3. The three-step sword bolt for a tight frame according to claim 1, wherein said sword tip portion is formed in a conical shape.
ことを特徴とする請求項１記載のタイトフレーム用３段
剣先ボルト。4. The three-step sword point bolt for a tight frame according to claim 1, wherein said upper projecting portion is formed in a cylindrical shape.
し、剣先部が多角錐形状にて形成することを特徴とする
請求項１記載のタイトフレーム用３段剣先ボルト。5. The three-step sword point bolt for a tight frame according to claim 1, wherein the upper projecting portion is formed in a polygonal column shape, and the sword tip portion is formed in a polygonal pyramid shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8247097A JPH1073112A (en) | 1996-08-29 | 1996-08-29 | Three stage cone point bolt for tight frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8247097A JPH1073112A (en) | 1996-08-29 | 1996-08-29 | Three stage cone point bolt for tight frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1073112A true JPH1073112A (en) | 1998-03-17 |
Family
ID=17158393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8247097A Pending JPH1073112A (en) | 1996-08-29 | 1996-08-29 | Three stage cone point bolt for tight frame |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1073112A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009198004A (en) * | 2008-02-22 | 2009-09-03 | Newfrey Llc | Welding stud |
-
1996
- 1996-08-29 JP JP8247097A patent/JPH1073112A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009198004A (en) * | 2008-02-22 | 2009-09-03 | Newfrey Llc | Welding stud |
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